CN107355369B - Bidirectional buffering and Compressor Valve control system containing it - Google Patents
Bidirectional buffering and Compressor Valve control system containing it Download PDFInfo
- Publication number
- CN107355369B CN107355369B CN201610305294.8A CN201610305294A CN107355369B CN 107355369 B CN107355369 B CN 107355369B CN 201610305294 A CN201610305294 A CN 201610305294A CN 107355369 B CN107355369 B CN 107355369B
- Authority
- CN
- China
- Prior art keywords
- valve
- limit bit
- bit unit
- hole
- damper piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/08—Actuation of distribution members
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a kind of Bidirectional buffering and containing its Compressor Valve control system.The Bidirectional buffering includes casing, Buffer Unit and executive component, and executive component is slidedly arranged in casing, and Buffer Unit includes lower limit bit unit, guide sleeve, upper limit bit unit, damper piston and positioning component.Lower limit bit unit is arranged in casing；The bottom pressure of guide sleeve is set to lower limit bit unit；The bottom pressure of upper limit bit unit is set to guide sleeve；Damper piston is slidedly arranged in guide sleeve along the length direction of guide sleeve, and damper piston is equipped with throttle orifice；Damper piston is positioned at the upper limit bit unit when positioning component is used to that damper piston to be positioned at lower limit bit unit when the bottom of damper piston is connected to lower limit bit unit, is connected at the top of damper piston upper limit bit unit.The Compressor Valve control system includes the Bidirectional buffering.The present invention can effectively improve the service life and control precision of Compressor Valve control system.
Description
Technical field
The present invention relates to a kind of compressor, in particular to a kind of Bidirectional buffering and the Compressor Valve containing it
Control system.
Background technique
It is adjusted to optimize the capacity for the reciprocating compressor that constant rotational speed reaches, generallys use traditional reflux control
System, i.e., wherein at least one inlet valve of each cylinder be kept within the scope of the predetermined stroke of the compression travel of compressor beat
It opens, the pressure or reflux power for the gas being pushed back via the inlet valve stayed open will be corresponding after undergoing the certain stroke of piston
Inlet valve is closed.In order to be accurately controlled the capacity of compressor, ideal compressor should be inlet valve in the defined time
Point is quickly opened when needing to open, quick closedown when needing to close.It, usually need to be to inlet valve in order to open inlet valve quickly
Sealing element applies biggish power, and in the closing process of inlet valve process, acts on reflux power on air-breathing valve seal more
Greatly, it is realization its inlet valve of capacity step-less adjustment during rapidly opened and closed that this, which allows for compressor, the sealing element of inlet valve
Greater impact power is born, compressor service life reduction is caused.
The piston compressor discharge capacity step-less adjustment control system that Austrian Hoerbige company releases is in control inlet valve
Opening and closing during introduce the conceptual design for reducing sealing element impact, i.e., by being mounted on control valve in valve opening procedure
The damper piston effect in the drainback passage of the throttling of inlet throttle mouth and closing process of executing agency reduce sealing element and open
Close the impact to valve deck or valve seat.Although by throttle to the sealing member of inlet valve in this way in the opening procedure of inlet valve
Part plays a certain protective role, but the opening process due to having delayed inlet valve, and sealing element can not be made complete
The damping of shocks between valve deck is obtained when unlatching, so that the control accuracy decline of compressor conveying capacity, the service life drop of compressor
It is low；In the closing process of inlet valve, although the damper piston in executing agency can make inlet valve major part closing process
Middle quick closedown, and movement velocity can be reduced when sealing element is close to valve seat, but since damper piston has inside and outside two sealing surfaces,
Since the leakage factor of sealing surface makes buffering course be difficult to be precisely controlled.
To sum up, there is service life and control precision are lower for Compressor Valve control system in the prior art
Defect.
Summary of the invention
The technical problem to be solved by the present invention is in order to overcome in the prior art Compressor Valve control system only
Have that partially unidirectional pooling feature, service life is low, the control lower defect of precision, provides a kind of Bidirectional buffering and containing it
Compressor Valve control system, realize " opening buffering fastly " and " quick closing valve buffering " air valve sealing element bidirectional buffering
Function.
The present invention is to solve above-mentioned technical problem by following technical proposals:
A kind of Bidirectional buffering is used for Compressor Valve control system, it is characterized in that, the bidirectional buffering
Device includes sleeve, a Buffer Unit and an executive component, and the Buffer Unit is arranged in described sleeve pipe, described to execute member
Part is slidedly arranged in described sleeve pipe, wherein the Buffer Unit includes:
Limit element once is arranged in described sleeve pipe, and the lower limit bit unit is equipped with a lower through-hole, the lower limit
A hydraulic cavities are surrounded between the bottom of element, the inner wall of described sleeve pipe and the top of the executive component；
The bottom pressure of one guide sleeve, the guide sleeve is set to the lower limit bit unit；
One upper limit bit unit is oppositely arranged with the lower limit bit unit, and the bottom pressure of the upper limit bit unit is set to described
The top of guide sleeve, the upper limit bit unit are equipped with through-hole on one, and the top of the upper limit bit unit passes through the upper through-hole
For being connected to hydraulic power source, an accommodating space is surrounded between the upper limit bit unit and the lower limit bit unit, the guide sleeve；
One damper piston is slidedly arranged in the guide sleeve along the length direction of the guide sleeve and is located at the accommodating space
Interior, the damper piston is equipped with a throttle orifice；
Wherein, the inner wall of the guide sleeve, described when the bottom of the damper piston is connected to the lower limit bit unit
A upper plenum, the upper through-hole, the upper plenum, institute are surrounded between the top of damper piston and the bottom of the upper limit bit unit
State throttle orifice, the lower through-hole and the hydraulic cavities be sequentially connected it is logical；The upper limit is connected at the top of the damper piston
When bit unit, one is surrounded between the inner wall of the guide sleeve, the bottom of the damper piston and the top of the lower limit bit unit
Lower cavity, the hydraulic cavities, the lower through-hole, the lower cavity, the throttle orifice and the upper through-hole are sequentially connected logical；
The Buffer Unit further includes a positioning component, and the positioning component is used to abut when the bottom of the damper piston
The damper piston is positioned at the lower limit bit unit when lower limit bit unit, and for when the top of the damper piston
The damper piston is positioned at the upper limit bit unit when portion is connected to the upper limit bit unit.
Preferably, the positioning component includes:
One annular spring, has a first annular slot on the lateral surface of the guide sleeve, and the annular spring is located at described
In first annular slot；
Multiple steel balls, the guide sleeve are equipped with multiple positioning through hole, and multiple positioning through hole are along the guide sleeve
The circumferential direction of wall surface is uniformly distributed, and the aperture of multiple positioning through hole is adapted with the groove width of the first annular slot, multiple
The steel ball correspondence is arranged in multiple positioning through hole, and each steel ball is connected to the annular spring and the buffering
Between the lateral surface of piston；
Two second annular grooves are symmetrically disposed on the middle part of the lateral surface of the damper piston, each second annular groove
With a ramp and a lower inclined plane, the ramp and the lower inclined plane are symmetrical arranged；
Wherein, when the lower inclined plane of second annular groove positioned at lower part is connected to the steel ball, the damper piston
Top be connected to the upper limit bit unit；When the ramp of superposed second annular groove is connected to the steel ball
When, the bottom of the damper piston is connected to the lower limit bit unit.
The steel ball is close to the lateral surface of the damper piston always under the elastic force effect of the annular spring, and to
The damper piston applies a radial force, when the damper piston move to the steel ball and second annular groove it is upper tiltedly
When face or oblique face contact, the power that the steel ball is applied on the inclined-plane can be analyzed to radial force and the axis for being directed toward the bevel direction
Xiang Li, under the action of axial force, power direction moves the damper piston in the axial direction.For example, when the damper piston exists
When moving upwards under upward external force, the ramp of superposed second annular groove pushes the steel ball to overcome institute
The elastic force for stating annular spring moves out, when the damper piston moves to second ring for making the steel ball and being located at lower part
When the oblique face contact of shape slot, the axial thrust load that the steel ball is applied to lower inclined plane acts on upwards transports the damper piston upwards
It is dynamic to be finally resisted against the upper limit bit unit.After upward external force disappears, due to this axial thrust load there is also and act on
On the damper piston, so that the damper piston be made to be always held at the position for being resisted against the upper limit bit unit.
Preferably, the guide sleeve is annular guide sleeve, described sleeve pipe is ring sleeve, and the annular guide sleeve and institute
The center line for stating ring sleeve is overlapped；The positioning through hole there are three setting on the guide sleeve, three positioning through hole are along institute
The circumferencial direction for stating guide sleeve is uniformly distributed.
Preferably, the top of described sleeve pipe has one second circular hole with one first circular hole, bottom, first circular hole
Diameter is greater than the diameter of second circular hole and first circular hole is connected with second circular hole, first circular hole and institute
It states the second circular hole and is connected between place and the inner wall of described sleeve pipe and surround a supporting table, the lower limit bit unit is set to the support
Platform, the upper limit bit unit, the guide sleeve, the damper piston and the positioning component are located in first circular hole, institute
It states executive component and is slidedly arranged on second circular hole；
There is a taper to connect mouth at the top of the upper limit bit unit, and the taper connects the outside that mouth extends to described sleeve pipe,
The taper connects mouth and is connected with the upper through-hole and is used to be connected to the hydraulic power source.
The present invention also provides a kind of Compressor Valve control systems, it is characterized in that comprising it is as described above
Bidirectional buffering.
Preferably, the Compressor Valve control system further include:
One shell, has an oil inlet and an oil outlet, and the oil inlet is described fuel-displaced for being connected to the hydraulic power source
Mouth is for being connected to a fuel tank；
One control valve is set in the shell, and the control valve has an electromagnet and an armature, the electromagnet and institute
It states armature to be oppositely arranged, when the electromagnet is in energized state, the electromagnet and the armature are attracted, when the electricity
When magnet is in obstructed electricity condition, a gap is formed between the electromagnet and the armature；The control valve is equipped with one
Oil return opening, a first runner and a second flow channel, the oil return opening are connected to the oil outlet, and the first runner with it is described
It is not connected between second flow channel；
One inlet valve, has a sealing element, a valve seat and a valve deck, and the sealing element is located at the valve seat and described
Between valve deck；
One end of one tappet, the tappet acts on the sealing element by a lifting claw；
Wherein, the Bidirectional buffering is set between the control valve and the tappet, and the other end of the tappet connects
It is connected to the executive component, and the executive component is lifting plunger；
It is the oil inlet, the first runner, the upper through-hole, described when the electromagnet is in obstructed electricity condition
Upper plenum, the throttle orifice, the lower through-hole and the hydraulic cavities are sequentially connected logical, length of the lifting plunger along described sleeve pipe
Degree direction moves downwardly to the sealing element and is connected to the valve deck；
When the electromagnet is in energized state, the hydraulic cavities, the lower through-hole, the lower cavity, the throttling
Hole, the upper through-hole, the second flow channel and the oil return opening are sequentially connected logical, length of the lifting plunger along described sleeve pipe
Degree direction moves up to the sealing element and is connected to the valve seat.
It is the oil inlet, the first runner, the upper through-hole, described when the electromagnet is in obstructed electricity condition
Upper plenum, the throttle orifice, the lower through-hole and the hydraulic cavities be sequentially connected it is logical, hydraulic oil from the oil inlet pass through described in
First runner, the upper through-hole enter in the upper plenum in the Bidirectional buffering, and pass through the lifting plunger band
Dynamic tappet sharp downward movement.When the damper piston, which moves to, is connected to the lower limit bit unit, it is located at the upper plenum
Interior hydraulic oil can only be flowed by the throttle orifice, the movement velocity of the lifting plunger be reduced, so that the sealing is first
Part is slowly contacted with the valve deck, is reduced impact of the valve deck to the sealing element, is improved the sealing element
Service life.
When the electromagnet is in energized state, the hydraulic cavities, the lower through-hole, the lower cavity, the throttling
Hole, the upper through-hole, the second flow channel and the oil return opening be sequentially connected it is logical, from the gas being applied on the sealing element
Body reflux power is applied to the lifting column beyond the Great Wall by the lifting claw, the tappet, and the hydraulic oil in the hydraulic cavities pushes
Damper piston fast upward motion together.It is described when the damper piston, which moves to, is connected to the upper limit bit unit
Hydraulic oil in hydraulic cavities can only flow to the oil return opening by the throttle orifice, to reduce the movement of the lifting plunger
Speed reduces impact of the valve seat to the sealing element so that the sealing element is slowly contacted with the valve seat,
Improve the service life of the sealing element.
Preferably, the control valve also has a valve body, a valve seat and a spool, the valve body has an oil inlet, institute
The oil inlet for stating valve body is connected with the oil inlet of the shell, and the spool is connected to the armature, the valve of the control valve
Cover for seat is set to one end of the spool and is arranged in the valve body, and the valve body is equipped with a control mouth, the control mouth connection
In the upper through-hole；
The other end of the spool is equipped with a boss, and the left end of the boss and right end all have the conical surface, the valve body and
Also there is the conical surface, the conical surface of the left end of the boss is opposite with the conical surface of the valve seat of the control valve on the valve seat of the control valve
Setting, the conical surface of the right end of the boss and the conical surface of the valve body are oppositely arranged；
When the electromagnet is in obstructed electricity condition, the valve seat of the conical surface of the left end of the boss and the control valve
Taper-face contact, the conical surface of the right end of the boss are separated with the conical surface of the valve body, the conical surface of the right end of the boss with it is described
It is formed with one first gap between the conical surface of valve body, forms the first runner between the control mouth and first gap；
When the electromagnet is in energized state, the cone of the valve seat of the conical surface of the left end of the boss and the control valve
Face separation, the taper-face contact of the conical surface of the right end of the boss and the valve body, the conical surface of the left end of the boss and the control
It is formed with one second gap between the conical surface of the valve seat of valve processed, forms described second between the control mouth and second gap
Runner.
One end of the spool matches to form guiding and sealing with hole on the valve body.Pass through the boss and the valve
The relative position of body, the valve seat just can more reliable, easily control the company of the first runner and the second flow channel
It is logical, it is convenient that the Compressor Valve control system is controlled.
Preferably, the Compressor Valve control system further includes a check valve, the check valve is set to described
In the oil inlet of valve body, the check valve is connected to the spool.
Preferably, the check valve includes that a valve seat, a cylindrical baffle valve and a spring, the valve seat of the check valve are arranged
In one end of the cylindrical baffle valve, the spring is set to the other end of the cylindrical baffle valve, the cylindrical baffle valve connection
In the spool.
When hydraulic oil is flowed from the oil inlet to the control valve direction, hydraulic coupling overcomes the elastic force of the spring to make
The cylindrical baffle valve is opened, and flows to the control valve by the hole of the check valve.When the pressure of the check valve lower end is big
When pressure at the oil inlet, the closed check valve, hydraulic oil can not be flowed to from the lower end of the check valve it is described into
Hydraulic fluid port.That is, when the hydraulic coupling of the control valve no power, hydraulic oil opens the sealing element, due to reflux
The effect of power is there is a possibility that the pressure of the lifting upper end is greater than the pressure of hydraulic system, but the check valve is at this time
Through closing, the hydraulic oil of the lifting upper end is in dead space, act on reflux power on the sealing element without
Method moves upwards the lifting plunger, so that the inlet valve is in stable open position.
Preferably, the Compressor Valve control system further includes a flow nipple, the flow nipple is set to described
In the oil inlet of shell.
In the case where the buffering effect of the sealing element meets use condition, by adjusting the size of the flow nipple
Speed of sealing element during with the contact of the valve seat or valve deck of inlet valve, Neng Gougeng can be further decreased
The protection to the sealing element is realized well.
On the basis of common knowledge of the art, above-mentioned each optimum condition, can any combination to get each preferable reality of the present invention
Example.
The positive effect of the present invention is that:
It is equipped with Bidirectional buffering in Compressor Valve control system in the present invention, enables to sealing element
It is quickly moved before contact valve seat or valve deck, when soon touching valve seat or valve deck, speed is reduced, and finally makes the sealing
Element is slowly contacted with the valve seat or the valve deck, is reduced the impact to the sealing element, is effectively protected institute
Sealing element is stated, the service life of the Compressor Valve control system is improved；Meanwhile it improving described piston type compressed
The control precision of machine air valve control system.
Detailed description of the invention
Fig. 1 is a preferred embodiment of the present invention the structural schematic diagram of Compressor Valve control system.
Fig. 2 is the partial enlargement structural representation of part A in Fig. 1.
Fig. 3 is the partial enlargement structural representation of part B in Fig. 2.
Fig. 4 is a preferred embodiment of the present invention the structural representation of damper piston in Compressor Valve control system
Figure.
Fig. 5 is a preferred embodiment of the present invention the structural representation of guide sleeve in Compressor Valve control system
Figure.
Fig. 6 is the partial enlargement structural representation of C portion in Fig. 1.
Description of symbols:
1: shell
11: oil inlet
2: control valve
21: electromagnet
22: armature
23: valve body
24: valve seat
25: spool
26: oil return opening
27: boss
28: control mouth
3: inlet valve
31: sealing element
32: valve seat
33: valve deck
4: tappet
5: Bidirectional buffering
51: casing
52: lifting plunger
53: lower limit bit unit
54: guide sleeve
541: first annular slot
542: positioning through hole
55: upper limit bit unit
551: taper connects mouth
56: damper piston
561: throttle orifice
57: hydraulic cavities
58: positioning component
581: annular spring
582: steel ball
583: the second annular grooves
59: supporting table
6: lifting claw
7: check valve
71: valve seat
72: cylindrical baffle valve
73: spring
8: flow nipple
Specific embodiment
A preferred embodiment is named, and completely illustrates the present invention in conjunction with attached drawing to become apparent from.
In the description of the present invention, it is to be understood that, term " on ", "lower", "left", "right", "top", "bottom", " on
The orientation or positional relationship of the instructions such as portion ", " lower part " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of retouching
It states the present invention and simplifies description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore be not considered as limiting the invention.
As shown in Figure 1, Compressor Valve control system includes shell 1, control valve 2, inlet valve 3, tappet 4 and double
To buffer unit 5, control valve 2 is equipped in shell 1, and Bidirectional buffering 5 is set between control valve 2 and tappet 4, and the one of tappet 4
End is connected to Bidirectional buffering 5, the other end is connected to inlet valve 3.
Wherein, as shown in Figure 1, shell 1 has an oil inlet 11 and an oil outlet, oil inlet 11 is hydraulic for being connected to
Source, the oil outlet is for being connected to a fuel tank；Control valve 2 has electromagnet 21, armature 22, valve body 23, valve seat 24, spool
25, oil return opening 26 and boss 27, electromagnet 21 and armature 22 are oppositely arranged, and valve seat 24 is sheathed on one end of spool 25 and is arranged in
Valve body 23, valve body 23 are equipped with a control mouth 28, and armature 22 is connected to the other end of spool 25, oil return opening 26 be connected to it is described go out
Hydraulic fluid port, the left end of boss 27 and right end all have the conical surface, also have the conical surface, the cone of the left end of boss 27 on valve body 23 and valve seat 24
Face and the conical surface of valve seat 24 are oppositely arranged, and the conical surface of the conical surface and valve body 23 of the right end of boss 27 is oppositely arranged.
When electromagnet 21 is powered, electromagnet 21 and armature 22 are attracted；When 21 no power of electromagnet, electromagnet 21 with
A gap is formed between armature 22.
When 21 no power of electromagnet, the conical surface of the left end of boss 27 and the taper-face contact of valve seat 24, the right end of boss 27
The conical surface separated with the conical surface of valve body 23, be formed between one first between the conical surface of the right end of boss 27 and the conical surface of valve body 23
Gap forms first runner between control mouth 28 and first gap；When 21 no power of electromagnet, the cone of the left end of boss 27
Face is separated with the conical surface of valve seat 24, the conical surface of the right end of boss 27 and the taper-face contact of valve body 23, the conical surface of the left end of boss 27
It is formed with one second gap between the conical surface of valve seat 24, forms the second between control mouth 28 and second gap
Road.
As shown in Figure 1, inlet valve 3 has sealing element 31, valve seat 32 and valve deck 33, sealing element 31 is located at 32 He of valve seat
Between valve deck 33；One end of tappet 4 acts on sealing element 31 by lifting claw 6.When sealing element 31 is in contact with valve deck 33
When, inlet valve 3 is opened；When sealing element 31 is in contact with valve seat 32, inlet valve 3 is closed.
As depicted in figs. 1 and 2, Bidirectional buffering 5 includes casing 51, a Buffer Unit and an executive component, described slow
It rushes component to be arranged in casing 51, the executive component is slidedly arranged in casing 51.Wherein, the executive component is lifting plunger
52, the Buffer Unit includes lower limit bit unit 53, guide sleeve 54, upper limit bit unit 55 and damper piston 56.Lower limit bit unit
53 are arranged in casing 51, lower limit bit unit 53 be equipped with a lower through-hole, the bottom of lower limit bit unit 53, the inner wall of casing 51 and
It goes up and down and surrounds hydraulic cavities 57 between the top of plunger 52.The bottom pressure of guide sleeve 54 is set to lower limit bit unit 53.Upper limit bit unit
55 are oppositely arranged with lower limit bit unit 53, and the bottom pressure of upper limit bit unit 55 is set to the top of guide sleeve 54, upper limit bit unit 55
Be equipped with through-hole on one, the top of upper limit bit unit 55 is connected to control mouth 28 by the upper through-hole, upper limit bit unit 55 and
Lower limit bit unit 53, guide sleeve 54 surround an accommodating space.Damper piston 56 is slidedly arranged on guiding along the length direction of guide sleeve 54
In the accommodating space, as shown in Figure 2 and Figure 4, damper piston 56 is equipped with a throttle orifice 561 in set 54 and position.
When the bottom of damper piston 56 is connected to lower limit bit unit 53, the top of the inner wall of guide sleeve 54, damper piston 56
A upper plenum, control mouth 28, the upper through-hole, the upper plenum, throttle orifice are surrounded between portion and the bottom of upper limit bit unit 55
561, the lower through-hole and hydraulic cavities 57 are sequentially connected logical；When the top of damper piston 56 is connected to upper limit bit unit 55, lead
Cavity, hydraulic cavities 57, institute are surrounded between the inner wall of set 54, the bottom of damper piston 56 and the top of lower limit bit unit 53
State lower through-hole, the lower cavity, throttle orifice 561, the upper through-hole and control mouth 28 be sequentially connected it is logical.
The Buffer Unit further includes positioning component 58, and positioning component 58 is used to be connected to down when the bottom of damper piston 56
Damper piston 56 is positioned at lower limit bit unit 53 when limit element 53, and the top for when damper piston 56 is connected to the upper limit
Damper piston 56 is positioned at upper limit bit unit 55 when bit unit 55.
In the present embodiment, as depicted in figs. 1 and 2, the top of casing 51 has the second circle with the first circular hole, bottom
The diameter in hole, first circular hole is greater than the diameter of second circular hole and first circular hole is connected with second circular hole
Logical, first circular hole is connected between place and the inner wall of casing 51 with second circular hole surrounds supporting table 59, lower limit bit
Part 53 is set to supporting table 59, and upper limit bit unit 55, guide sleeve 54, damper piston 56 and positioning component 58 are located at first circular hole
Interior, lifting plunger 52 is slidedly arranged on second circular hole.In addition, as depicted in figs. 1 and 2, the top of upper limit bit unit 55 has cone
Shape connects mouth 551, and taper connects the outside that mouth 551 extends to casing 51, and taper connects mouth 551 and is connected and is connected to the upper through-hole
Control mouth 28.
In the present embodiment, as depicted in figs. 1 and 2, guide sleeve 54 is annular guide sleeve, and casing 51 is ring sleeve,
And the annular guide sleeve is overlapped with the center line of the ring sleeve.As shown in Figures 2 and 3, positioning component 58 includes annular
581, three steel balls 582 of circlip and two the second annular grooves 583.Wherein, as shown in Fig. 2, Fig. 3 and Fig. 5, the outside of guide sleeve 54
There is first annular slot 541, annular spring 581 is located in first annular slot 541 on face；It is set on guide sleeve 54 logical there are three positioning
Hole 542, three positioning through hole 542 are uniformly distributed along the circumferencial direction of guide sleeve 54, the aperture of positioning through hole 542 with it is first annular
The groove width of slot 541 is adapted, and three correspondences of steel ball 582 are arranged in three positioning through hole 542, each steel ball 582 is connected to
Between annular spring 581 and the lateral surface of damper piston 56.As shown in figs 2-4, two the second annular grooves 583 are symmetrically disposed on
The middle part of the lateral surface of damper piston 56, each second annular groove 583 have a ramp and a lower inclined plane, the ramp
It is symmetrical arranged with the lower inclined plane.When the lower inclined plane of the second annular groove 583 positioned at lower part is connected to steel ball 582, buffering is lived
The top of plug 56 is connected to upper limit bit unit 55；When the ramp of superposed second annular groove 583 is connected to steel ball 582
When, the bottom of damper piston 56 is connected to lower limit bit unit 53.
As shown in Figure 1, Compressor Valve control system further includes check valve 7, check valve 7 be set to valve body 23 into
In hydraulic fluid port, check valve 7 is connected to the spool 25 of control valve 2.As shown in figures 1 to 6, check valve 7 includes valve seat 71, cylindrical baffle
Valve 72 and spring 73, the valve seat 71 of check valve 7 are sheathed on one end of cylindrical baffle valve 72, and spring 73 is set to cylindrical baffle valve 72
The other end, cylindrical baffle valve 72 are connected to control valve 2.
When hydraulic oil is flowed from oil inlet 11 to 2 direction of control valve, hydraulic coupling overcomes the elastic force of spring 73 to keep off cylinder
Plate valve 72 is opened, and the hole flow direction control valve 2 of check valve 7 is passed through.When the pressure of 7 lower end of check valve is greater than the pressure at oil inlet 11
When, check valve 7 is closed, and hydraulic oil can not flow to oil inlet 11 from the lower end of check valve 7.That is, when control valve 2 is obstructed
When electric, hydraulic oil hydraulic coupling opens sealing element 31, since the effect of reflux power is there is a possibility that go up and down 52 upper end of plunger
Pressure is greater than the pressure of hydraulic system, but check valve 7 has been switched off at this time, and the hydraulic oil of lifting 52 upper end of plunger is in one
In dead space, the reflux power acted on sealing element 31 can not be such that lifting plunger 52 moves upwards, and stablize so that inlet valve 3 is in
Open position.
As shown in Figure 1, Compressor Valve control system further includes flow nipple 8, flow nipple 8 is set to oil inlet 11
It is interior.It, can be further by adjusting the size of flow nipple 8 in the case where the buffering effect of sealing element 31 meets use condition
Speed of the sealing element 31 during with the contact of the valve seat 32 or valve deck 33 of inlet valve 3 is reduced, can be better achieved pair
The protection of sealing element 31.
In the present embodiment, as shown in Figure 1, flow nipple 8 is set in the oil inlet 11 of shell 1, check valve 7 is set to valve
In the oil inlet of body 23, the position of flow nipple 8 is upper, and the position of check valve 7 is under.The hydraulic oil entered from oil inlet 11 first passes through
After crossing flow nipple 8, then the top of cylindrical baffle valve 72 is reached, opens cylindrical baffle oil inlet.In addition, the latus rectum of flow nipple 8 can be with
It is required to carry out flexible setting according to the different application of Compressor Valve control system.
In the present embodiment, when electromagnet 21 is in obstructed electricity condition, the spool 25 of control valve 2 is under the effect of elasticity
In limit on the left position, the conical surface of the left end of boss 27 and taper-face contact, the conical surface of right end and the conical surface of valve body 23 of valve seat 24
Separation closes between control mouth 28 and oil return opening 26, is connected with oil inlet 11；Hydraulic oil is introduced from oil inlet 11, passes through control
The hydraulic oil that donsole 28 flows into pushes damper piston 56 to move downward, and displacement is so that damper piston 56 caused by damper piston 56
The oil pressure of lower end increases and then pushes the quickly movement downwardly together of lifting plunger 52, tappet 4 and lifting claw 6；When damper piston 56
Bottom when being connected to lower limit bit unit 53, i.e., when damper piston 56 moves to lower limit position, entered from control mouth 28
The hydraulic oil gone up and down in the hydraulic cavities 57 of 52 upper end of plunger can only be flowed by the throttle orifice 561 on damper piston 56, to limit
The movement velocity of lifting plunger 52 has been made, so that sealing element 31 is slowly contacted with valve deck 33, has reduced 33 pairs of sealing members of valve deck
The impact of part 31 improves the service life of sealing element 31.
When electromagnet 21 is in energized state, electromagnetic attraction caused by electromagnet 21 and armature 22 overcomes the bullet of spring
Power makes spool 25 be in limit on the right-right-hand limit position, the conical surface and the taper-face contact of valve body 23, the conical surface and valve of left end of the right end of boss 27
The conical surface separation of seat 24, closes between control mouth 28 and oil inlet 11, is connected with oil return opening 26；Act on the close of inlet valve 3
Reflux power on envelope element 31 is acted on lifting plunger 52 by lifting claw 6 and tappet 4, goes up and down the hydraulic cavities of 52 upper end of plunger
Hydraulic oil in 57 pushes the fast upward motion together of damper piston 56；When the top of damper piston 56 is connected to upper limit bit unit
When 55, i.e., when damper piston 56 moves to upper limit position, the hydraulic oil of lifting 52 upper end of plunger can only pass through damper piston
56 throttle orifice 561 flows to oil return opening 26, so that the movement velocity of lifting plunger 52 is limited, so that sealing element 31 and valve seat
32 slowly contacts, reduce impact of the valve seat 32 to sealing element 31, improve the service life of sealing element 31.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
Under the premise of the principle and substance of the present invention, many changes and modifications may be made, but these change and
Modification each falls within protection scope of the present invention.
Claims (10)
1. a kind of Bidirectional buffering is used for Compressor Valve control system, which is characterized in that the bidirectional buffering dress
It sets including sleeve, a Buffer Unit and an executive component, the Buffer Unit is arranged in described sleeve pipe, the executive component
It is slidedly arranged in described sleeve pipe, wherein the Buffer Unit includes:
Limit element once is arranged in described sleeve pipe, and the lower limit bit unit is equipped with a lower through-hole, the lower limit bit unit
Bottom, between the inner wall of described sleeve pipe and the top of the executive component surround a hydraulic cavities；
The bottom pressure of one guide sleeve, the guide sleeve is set to the lower limit bit unit；
One upper limit bit unit is oppositely arranged with the lower limit bit unit, and the bottom pressure of the upper limit bit unit is set to the guiding
The top of set, the upper limit bit unit are equipped with through-hole on one, and the top of the upper limit bit unit is used for by the upper through-hole
It is connected to hydraulic power source, surrounds an accommodating space between the upper limit bit unit and the lower limit bit unit, the guide sleeve；
One damper piston, along the length direction of the guide sleeve be slidedly arranged in the guide sleeve and position in the accommodating space,
The damper piston is equipped with a throttle orifice；
Wherein, when the bottom of the damper piston is connected to the lower limit bit unit, the inner wall of the guide sleeve, the buffering
A upper plenum, the upper through-hole, the upper plenum, the section are surrounded between the top of piston and the bottom of the upper limit bit unit
Discharge orifice, the lower through-hole and the hydraulic cavities are sequentially connected logical；The upper limit bit is connected at the top of the damper piston
When part, surrounded between the inner wall of the guide sleeve, the bottom of the damper piston and the top of the lower limit bit unit empty
Chamber, the hydraulic cavities, the lower through-hole, the lower cavity, the throttle orifice and the upper through-hole are sequentially connected logical；
The Buffer Unit further includes a positioning component, and the positioning component is used to be connected to institute when the bottom of the damper piston
The damper piston is positioned at the lower limit bit unit when stating lower limit bit unit, and the top for when the damper piston is supported
The damper piston is positioned at the upper limit bit unit when being connected to the upper limit bit unit.
2. Bidirectional buffering as described in claim 1, which is characterized in that the positioning component includes:
One annular spring, has a first annular slot on the lateral surface of the guide sleeve, and the annular spring is located at described first
In annular groove；
Multiple steel balls, the guide sleeve are equipped with multiple positioning through hole, wall surface of multiple positioning through hole along the guide sleeve
Circumferential direction be uniformly distributed, and the aperture of multiple positioning through hole is adapted with the groove width of the first annular slot, multiple described
Steel ball correspondence is arranged in multiple positioning through hole, and each steel ball is connected to the annular spring and the damper piston
Lateral surface between；
Two second annular grooves, are symmetrically disposed on the middle part of the lateral surface of the damper piston, and each second annular groove has
One ramp and a lower inclined plane, the ramp and the lower inclined plane are symmetrical arranged；
Wherein, when the lower inclined plane of second annular groove positioned at lower part is connected to the steel ball, the top of the damper piston
Portion is connected to the upper limit bit unit；When the ramp of superposed second annular groove is connected to the steel ball, institute
The bottom for stating damper piston is connected to the lower limit bit unit.
3. Bidirectional buffering as claimed in claim 2, which is characterized in that the guide sleeve is annular guide sleeve, the set
Pipe is ring sleeve, and the annular guide sleeve is overlapped with the center line of the ring sleeve；There are three being set on the guide sleeve
The positioning through hole, three positioning through hole are uniformly distributed along the circumferencial direction of the guide sleeve.
4. Bidirectional buffering as described in claim 1, which is characterized in that the top of described sleeve pipe have one first circular hole,
Bottom has one second circular hole, and the diameter of first circular hole is greater than the diameter of second circular hole and first circular hole and institute
It states the second circular hole to be connected, first circular hole is connected between place and the inner wall of described sleeve pipe with second circular hole surrounds one
Supporting table, the lower limit bit unit be set to the supporting table, the upper limit bit unit, the guide sleeve, the damper piston and
The positioning component is located in first circular hole, and the executive component is slidedly arranged on second circular hole；
There is a taper to connect mouth at the top of the upper limit bit unit, and the taper connects the outside that mouth extends to described sleeve pipe, described
Taper connects mouth and is connected with the upper through-hole and is used to be connected to the hydraulic power source.
5. a kind of Compressor Valve control system, which is characterized in that it includes as described in claim 1-4 any one
Bidirectional buffering.
6. Compressor Valve control system as claimed in claim 5, which is characterized in that the piston compressor gas
Valve control system further include:
One shell, has an oil inlet and an oil outlet, and the oil inlet is used for being connected to the hydraulic power source, the oil outlet
In being connected to a fuel tank；
One control valve is set in the shell, and the control valve has an electromagnet and an armature, the electromagnet and the rank
Iron is oppositely arranged, and when the electromagnet is in energized state, the electromagnet and the armature are attracted, when the electromagnet
When in obstructed electricity condition, a gap is formed between the electromagnet and the armature；The control valve is equipped with an oil return
Mouth, a first runner and a second flow channel, the oil return opening are connected to the oil outlet, and the first runner and described second
It is not connected between runner；
One inlet valve, has a sealing element, a valve seat and a valve deck, and the sealing element is located at the valve seat and the valve deck
Between；
One end of one tappet, the tappet acts on the sealing element by a lifting claw；
Wherein, the Bidirectional buffering is set between the control valve and the tappet, and the other end of the tappet is connected to
The executive component, and the executive component is lifting plunger；
When the electromagnet is in obstructed electricity condition, the oil inlet, the first runner, the upper through-hole, the overhead
Chamber, the throttle orifice, the lower through-hole and the hydraulic cavities are sequentially connected logical, and the lifting plunger is along the length side of described sleeve pipe
The valve deck is connected to the sealing element is moved downwardly to；
When the electromagnet is in energized state, the hydraulic cavities, the lower through-hole, the lower cavity, the throttle orifice, institute
It states through-hole, the second flow channel and the oil return opening and is sequentially connected logical, length direction of the lifting plunger along described sleeve pipe
It moves up to the sealing element and is connected to the valve seat.
7. Compressor Valve control system as claimed in claim 6, which is characterized in that the control valve also has one
Valve body, a valve seat and a spool, the valve body have an oil inlet, the oil inlet phase of the oil inlet of the valve body and the shell
Connection, the spool are connected to the armature, and the valve seat of the control valve is sheathed on one end of the spool and is arranged in described
Valve body, the valve body are equipped with a control mouth, and the control mouth is connected to the upper through-hole；
The other end of the spool is equipped with a boss, and the left end of the boss and right end all have the conical surface, the valve body and described
Also there is the conical surface, the conical surface of the left end of the boss is opposite with the conical surface of the valve seat of the control valve to be set on the valve seat of control valve
It sets, the conical surface of the right end of the boss and the conical surface of the valve body are oppositely arranged；
When the electromagnet is in obstructed electricity condition, the conical surface of the valve seat of the conical surface of the left end of the boss and the control valve
Contact, the conical surface of the right end of the boss are separated with the conical surface of the valve body, the conical surface of the right end of the boss and the valve body
The conical surface between be formed with one first gap, form the first runner between the control mouth and first gap；
When the electromagnet is in energized state, the conical surface point of the valve seat of the conical surface of the left end of the boss and the control valve
From, the taper-face contact of the conical surface of the right end of the boss and the valve body, the conical surface of the left end of the boss and the control valve
Valve seat the conical surface between be formed with one second gap, form the second between the control mouth and second gap
Road.
8. Compressor Valve control system as claimed in claim 7, which is characterized in that the piston compressor gas
Valve control system further includes a check valve, and the check valve is set in the oil inlet of the valve body, and the check valve is connected to institute
State spool.
9. Compressor Valve control system as claimed in claim 8, which is characterized in that the check valve includes a valve
Seat, a cylindrical baffle valve and a spring, the valve seat of the check valve are sheathed on one end of the cylindrical baffle valve, and the spring is set
In the other end of the cylindrical baffle valve, the cylindrical baffle valve is connected to the spool.
10. the Compressor Valve control system as described in claim 6-9 any one, which is characterized in that the work
Plug compressor valve control system further includes a flow nipple, and the flow nipple is set in the oil inlet of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610305294.8A CN107355369B (en) | 2016-05-10 | 2016-05-10 | Bidirectional buffering and Compressor Valve control system containing it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610305294.8A CN107355369B (en) | 2016-05-10 | 2016-05-10 | Bidirectional buffering and Compressor Valve control system containing it |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107355369A CN107355369A (en) | 2017-11-17 |
| CN107355369B true CN107355369B (en) | 2019-04-12 |
Family
ID=60271158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610305294.8A Active CN107355369B (en) | 2016-05-10 | 2016-05-10 | Bidirectional buffering and Compressor Valve control system containing it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107355369B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110778490A (en) * | 2019-11-11 | 2020-02-11 | 无锡康茨压缩机配件与系统有限公司 | Stepless air quantity regulating air valve operation method and hydraulic damping device thereof |
| CN113187720B (en) * | 2021-02-04 | 2022-09-06 | 广州庄美科技有限公司 | Flow pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2526200A1 (en) * | 1974-06-14 | 1975-12-18 | Taisan Industrial Co | ELECTROMAGNETIC PUMP |
| CN1379183A (en) * | 2001-04-04 | 2002-11-13 | 赫尔比格压缩机技术服务有限公司 | Circular disk valve of piston type compressor |
| CN104583590A (en) * | 2012-08-28 | 2015-04-29 | 帕斯卡工程株式会社 | Compressed air driven reciprocating piston hydraulic pump |
| CN205805870U (en) * | 2016-05-10 | 2016-12-14 | 上海迪瓦流体控制科技有限公司 | Bidirectional buffering and containing its Compressor Valve control system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10109948B4 (en) * | 2001-03-01 | 2008-02-21 | J. Eberspächer GmbH & Co. KG | metering pump |
-
2016
- 2016-05-10 CN CN201610305294.8A patent/CN107355369B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2526200A1 (en) * | 1974-06-14 | 1975-12-18 | Taisan Industrial Co | ELECTROMAGNETIC PUMP |
| CN1379183A (en) * | 2001-04-04 | 2002-11-13 | 赫尔比格压缩机技术服务有限公司 | Circular disk valve of piston type compressor |
| CN104583590A (en) * | 2012-08-28 | 2015-04-29 | 帕斯卡工程株式会社 | Compressed air driven reciprocating piston hydraulic pump |
| CN205805870U (en) * | 2016-05-10 | 2016-12-14 | 上海迪瓦流体控制科技有限公司 | Bidirectional buffering and containing its Compressor Valve control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107355369A (en) | 2017-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3233625A (en) | Magnetically operated valve | |
| KR20090065526A (en) | Fluid-working machine | |
| CN107355369B (en) | Bidirectional buffering and Compressor Valve control system containing it | |
| CN206159607U (en) | Guide's case device of piston solenoid valve | |
| CN104141814A (en) | Three-sleeve elastic self-sealing safety valve | |
| CN103090070A (en) | Piloted type pressure reducing valve | |
| CN205805870U (en) | Bidirectional buffering and containing its Compressor Valve control system | |
| JP2005502827A (en) | valve | |
| CN110131084A (en) | A kind of valve rod couple high pressure common rail injector | |
| CN105814351B (en) | The electromagnet of solenoid-operated fluid valve | |
| CN109139319A (en) | A kind of common-rail injector | |
| CN104134557A (en) | Spring operating mechanism buffer for circuit breaker | |
| JP2015127552A (en) | On-off valve | |
| CN108105435A (en) | Pilot operated safety valve | |
| CN103912697A (en) | Air suction valve of subway air source system | |
| CN103321979A (en) | Handle pilot valve capable of improving excavator inching operation | |
| CN107740735B (en) | A kind of electro-hydraulic linkage gas valve | |
| CN109237056A (en) | A kind of plug-in precompression valve | |
| CN105065741A (en) | Self-operated segmented pressure control valve | |
| CN208535252U (en) | Low leakage flow proportional control valve and oil pump solenoid valve with the control valve | |
| CN104895857B (en) | Low noise cone valve | |
| CN108278137A (en) | A kind of fluid power variable valve driving apparatus and system | |
| JPH0427392B2 (en) | ||
| CN106286893B (en) | Three-way magnetic valve | |
| CN210687191U (en) | Exhaust valve driving mechanism and exhaust valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20210726 Granted publication date: 20190412 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20211008 Granted publication date: 20190412 |