CN108758004B - A kind of Hydraulically-controproportional proportional valve - Google Patents
A kind of Hydraulically-controproportional proportional valve Download PDFInfo
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- CN108758004B CN108758004B CN201810612368.1A CN201810612368A CN108758004B CN 108758004 B CN108758004 B CN 108758004B CN 201810612368 A CN201810612368 A CN 201810612368A CN 108758004 B CN108758004 B CN 108758004B
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- spool
- hydraulic fluid
- fluid port
- valve
- flow slot
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
- F16K11/0716—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides with fluid passages through the valve member
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The present invention proposes a kind of Hydraulically-controproportional proportional valve, comprising: the first valve casing；Spool；Stopple；Valve core housing；Fixing seat；Second valve casing；First spring base；Second spring seat；Fixing piece；Spring；The spool can be switched between first position, the second position and the third place.Hydraulically-controproportional proportional valve according to an embodiment of the present invention, is designed for plug-in, convenient for Integrated design and volume compact, rationally.
Description
Technical field
The present invention relates to control valve technical fields, more particularly to a kind of Hydraulically-controproportional proportional valve.
Background technique
Currently, having widely applied hydraulic control proportional reversing valve in walking machine equipment, this product can pass through solenoid-operated proportional
Pressure reducing valve or control handle realize remote-controlled operation, equipment are used very convenient.But hydraulic control ratio in the market is changed
It is mostly multiple directional control valve form to valve, is above had the disadvantage that in application
(1) valve body is formed by cast casting, and runner is fixed, and several hydraulic control proportional reversing valves are connected to one by bolt
It rises, is unfavorable for Integration Design, it is difficult to realize complicated hydraulic circuit control.
(2) structure is complex, bulky, is unfavorable for applying in small and light machine equipment.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, an object of the present invention is to provide a kind of plug-in, volume compact Hydraulically-controproportional proportional valves.
A kind of Hydraulically-controproportional proportional valve according to an embodiment of the present invention, comprising:
First valve casing has the first valve opening for penetrating through first valve casing in left-right direction on first valve casing, described
There is arranged for interval in left-right direction and the first hydraulic fluid port being connected to first valve opening, the second oil on the side wall of first valve casing
Mouth, third hydraulic fluid port and the 4th hydraulic fluid port, the right opening of first valve opening are configured to the 5th hydraulic fluid port；
Spool, the spool can be movably located in first valve opening and institute is stretched out in the left end of the spool to the left
It states outside the first valve opening, there is the first blind hole of opening to the right on the spool, have on the side wall of the spool between any two mutually
First separately is through-flow slot, the second through-flow slot, third is through-flow slot and four-way chute have connection on the first through-flow slot
First through flow hole of first blind hole, the second through-flow slot has the second through flow hole for being connected to first blind hole, described
Four-way chute has the third through flow hole for being connected to first blind hole；
Stopple, the stopple are located in first valve opening and are connected with the spool for closing first blind hole
Right opening；
Valve core housing, the valve core housing is socketed on the left end of the spool and the valve is stretched out in the left end of the spool to the left
The right end of the left end of core retainer plate, the valve core housing has flanging；
Fixing seat, the fixing seat have plug division and stopper section, and the plug division of the fixing seat is plugged on described first
The left end of valve opening, the stopper section of the fixing seat are overlapped on the left side of first valve casing, the stopper section of the fixing seat
Upper have a first through hole, and the valve core housing passes through the left side of the first through hole and the flanging against the fixing seat to the left
Stopper section right side；
Second valve casing, second valve casing have the second blind hole of opening to the right, the left end of first valve casing and institute
The stopper section for stating fixing seat cooperates in the right end of second blind hole, has on the internal perisporium of second blind hole against described
The stage portion of the left side of the stopper section of fixing seat has be connected to second blind hole the 6th on the side wall of second valve casing
Hydraulic fluid port；
First spring base, first spring base are socketed in the left side on the valve core housing and being located at the fixing seat, institute
It states the first spring base and is equipped with gear needle, have on the valve core housing and supply first slotted hole for keeping off needle and passing through, on the spool
With the second slotted hole that is being passed through for the gear needle and being adapted to first slotted hole；
Second spring seat, the second spring seat are located in second blind hole so that the left end of the spool is worn to the left
It crosses, the second spring seat is fixed on the left end of the valve core housing；
Fixing piece, the fixing piece are connected to consolidate the second spring seat with the valve core housing with the left end of the spool
It is fixed；
Spring, the spring are socketed on the valve core housing, and the right end of the spring is against first spring base and institute
The left end of spring is stated against the second spring seat；
The spool can be switched between first position, the second position and the third place.
Advantageously, when the spool is in the first position, not by external force, the spool makes the spool
First hydraulic fluid port is connected to the described first through-flow slot, and partially enclosed second hydraulic fluid port of spool is so that second hydraulic fluid port
It is connected to the described second through-flow slot, the spool is connected to the third hydraulic fluid port with the through-flow slot of the third, and the spool makes institute
State that the 4th hydraulic fluid port is partially enclosed so that the 4th hydraulic fluid port is connected to the four-way chute.
Advantageously, when the spool is in the second position, work that the spool is applied by the 5th hydraulic fluid port
Firmly it is greater than the active force that the spool is applied by the 6th hydraulic fluid port, the spool right-to-left is mobile, and the spool makes
First hydraulic fluid port is connected to the described first through-flow slot, and the spool closes the second through-flow slot, and the spool makes described the
Two hydraulic fluid ports are connected to the third hydraulic fluid port by the through-flow slot of the third, the spool fully open the 4th hydraulic fluid port so that
4th hydraulic fluid port is connected to the four-way chute.
Advantageously, when the spool is in the third place, work that the spool is applied by the 5th hydraulic fluid port
Firmly it is less than the active force that the spool is applied by the 6th hydraulic fluid port, the spool moves from left to right, and the spool makes
First hydraulic fluid port is connected to the described first through-flow slot, and the spool fully opens second hydraulic fluid port so that second oil
Mouth is connected to the described second through-flow slot, and the spool makes the third hydraulic fluid port and the 4th hydraulic fluid port pass through the through-flow slot of the third
Connection, the spool close the four-way chute.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Fig. 1 is the schematic diagram of Hydraulically-controproportional proportional valve according to an embodiment of the invention；
Fig. 2 is the schematic diagram of Hydraulically-controproportional proportional valve according to an embodiment of the invention；
Fig. 3 is the schematic diagram of the first spring base of Hydraulically-controproportional proportional valve according to an embodiment of the invention；
Fig. 4 is the schematic diagram of the valve core housing of Hydraulically-controproportional proportional valve according to an embodiment of the invention；
Fig. 5 is the schematic diagram of the spool of Hydraulically-controproportional proportional valve according to an embodiment of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings it is described in detail Hydraulically-controproportional proportional valve according to the present invention.
As shown in Figures 1 to 5, a kind of Hydraulically-controproportional proportional valve according to the present invention, comprising: the first valve casing 1, spool 2, stopple 3,
Valve core housing 4, fixing seat 5, the second valve casing 6, the first spring base 7, second spring seat 8, fixing piece 9, spring 10.
Specifically, there is the first valve opening for penetrating through the first valve casing 1 in left-right direction on the first valve casing 1, the first valve casing 1
There is arranged for interval and the first hydraulic fluid port T being connected to first valve opening, the second hydraulic fluid port B, third in left-right direction on side wall
The right opening of hydraulic fluid port P and the 4th hydraulic fluid port A, first valve opening are configured to the 5th hydraulic fluid port D.
Spool 2 can be movably located in first valve opening and first valve opening is stretched out in the left end of spool 2 to the left
Outside, there is opening the first blind hole 21 to the right on spool 2, have on the side wall of spool 2 between any two apart from one another by it is first logical
Chute 201, the second through-flow slot 202, third is through-flow slot 203 and four-way chute 204 have connection the on first through-flow slot 201
First through flow hole 205 of one blind hole 21, the second through-flow slot 202 have the second through flow hole 206 of the first blind hole 21 of connection, four-way
Chute 204 has the third through flow hole 207 of the first blind hole 21 of connection.
Stopple 3 is located at the right opening in first valve opening and being connected with spool 2 for closing the first blind hole 21.
Valve core housing 4 is socketed on the left end of spool 2 and the left end of valve core housing 4, valve core housing 4 are stretched out in the left end of spool 2 to the left
Right end have flanging 401.
Fixing seat 5 has plug division and stopper section, and the plug division of fixing seat 5 is plugged on the left end of first valve opening, Gu
The stopper section of reservation 5 is overlapped on the left side of the first valve casing 1, has first through hole, valve core housing 4 on the stopper section of fixing seat 5
To the left across the left side of the first through hole and flanging 401 against the stopper section right side of fixing seat 5.
Second valve casing 6 has the second blind hole of opening to the right, and the left end of the first valve casing 1 and the stopper section of fixing seat 5 are matched
It closes in the right end of second blind hole, has on the internal perisporium of second blind hole against the left end of the stopper section of fixing seat 5
The stage portion in face has the 6th hydraulic fluid port C for being connected to second blind hole on the side wall of the second valve casing 6.
First spring base 7 is socketed in the left side on valve core housing 4 and being located at fixing seat 5, and the first spring base 7 is equipped with gear needle
71, there is on valve core housing 4 the first slotted hole 41 passed through for gear needle 71, have on spool 2 being passed through for gear needle 71 and with first
The second slotted hole 22 that slotted hole 41 is adapted to.
Second spring seat 8 is located in second valve opening so that the left end of spool 2 passes through to the left, and second spring seat 8 is fixed
In the left end of valve core housing 4.For example, the left end of valve core housing 4 is interference fitted in second spring seat 8.
Fixing piece 9 is connected so that second spring seat 8 and valve core housing 4 is fixed with the left end of spool 2.Fixing piece 9 can be spiral shell
It is female.
Spring 10 is socketed on valve core housing 4, and the right end of spring 10 is against the left end of the first spring base 7 and spring 10 against
Two spring bases 8；
Spool 2 can be switched between first position, the second position and the third place.
What needs to be explained here is that first position is that spool 2 be in position as shown in Figure 1, the second position for spool 2 with
First position is mobile for starting point right-to-left, and the third place is that spool 2 is mobile by starting point right-to-left of first position.
More specifically, spool 2 is not by external force (that is, come from when spool 2 is in the first position
The pressure of 5th hydraulic fluid port D, also not by the external force and the 6th hydraulic fluid port C applied from the 6th hydraulic fluid port C pressure or the 5th hydraulic fluid port D
The external force of application is equal, at this point, gear needle 71 bears against the right end of the first slotted hole 41 and the right end of the second slotted hole 22),
Spool 2 is connected to the first hydraulic fluid port T with the first through-flow slot 201, and the partially enclosed second hydraulic fluid port B of spool 2 is so that the second hydraulic fluid port B and second
Through-flow slot 202 is connected to, and spool 2 is connected to third hydraulic fluid port P with the through-flow slot 203 of third, spool 2 close the 4th hydraulic fluid port part A with
It is connected to the 4th hydraulic fluid port A with the four-way chute 204.At this point, the second hydraulic fluid port B passes through the second through-flow slot 202, the second through flow hole
206, the first blind hole 21, the first through flow hole 205 and the first through-flow slot 201 are connected to the first hydraulic fluid port T, and the 4th hydraulic fluid port A passes through the 4th
Through-flow slot 204, third through flow hole 207, the first blind hole 21, the first through flow hole 205 and the first through-flow slot 201 and the first hydraulic fluid port T connect
Logical, third hydraulic fluid port P is disconnected with the second hydraulic fluid port B, the 4th hydraulic fluid port A and the first hydraulic fluid port T.
When spool 2 is in the second position, the active force that spool 2 is applied by the 5th hydraulic fluid port D be greater than spool 2 by
The active force that 6th hydraulic fluid port C applies, 2 right-to-left of spool is mobile, and spool 2 is connected to the first hydraulic fluid port T with the first through-flow slot 201,
Spool 2 closes the second through-flow slot 202, and spool 2 is connected to the second hydraulic fluid port B by the through-flow slot 203 of third with third hydraulic fluid port P, spool 2
Fully open the 4th hydraulic fluid port A so that the 4th hydraulic fluid port A is connected to four-way chute 204.At this point, the first hydraulic fluid port T is logical by first
Chute 201, the first through flow hole 205, the first blind hole 21, third through flow hole 207 and four-way chute 204 are connected to the 4th hydraulic fluid port A.
As shown in Figure 1, keeping off the right side with the first slotted hole 41 and the second slotted hole 22 respectively of needle 71 due at first position
End is connected, and therefore, when being switched to the second position from first position, spool 2 drives the first spring base 7 to transport to the left by gear needle 71
It is dynamic, and valve core housing 4 is limited by being fixed seat 5, can not be moved right, and second spring seat 8 is fixed on a left side for valve core housing 4
Spring 10 is compressed, the left end of spool 2 is further stretched out to the left when spool 2 drives the first spring base 7 to move downward at end
The left end of valve core housing 4 between the right side of fixing piece 9 and the left side of second spring seat 8 so as to be spaced a predetermined distance.When the 5th
When the pressure at pressure and the 6th hydraulic fluid port C at hydraulic fluid port D rebalances, then spool 2 is understood under the action of the restoring force of spring 10,
From second site reversion to first position.This will be understood by those skilled in the art.
When spool 2 is in the third place, spool 2 is less than spool 2 by the 6th by the 5th hydraulic fluid port D active force applied
The active force that hydraulic fluid port C applies, spool 2 move from left to right, and spool 2 is connected to the first hydraulic fluid port T with the first through-flow slot 201, spool 2
The second hydraulic fluid port B is fully opened so that the second hydraulic fluid port B is connected to the second through-flow slot 202, spool 2 makes the oil of third hydraulic fluid port P and the 4th
Mouth A is connected to by the through-flow slot 203 of third, and spool 2 closes four-way chute 204.At this point, the first hydraulic fluid port T passes through the first through-flow slot
201, the first through flow hole 205, the first blind hole 21, the second through flow hole 206 and the second through-flow slot 202 are connected to the second hydraulic fluid port B.
As shown in Figure 1, keeping off the right side with the first slotted hole 41 and the second slotted hole 22 respectively of needle 71 due at first position
End is connected, and therefore, when being switched to the third place from first position, spool 2 drives valve core housing 4 to move from left to right together, valve
The stroke of core 2 is limited by the first slotted hole 41 and the second slotted hole.It is limited since the first spring base 7 is fixed seat 5, it can not
It moves right, therefore spool 2 will drive fixing piece 9, second spring seat 10 and valve core housing 4 one during moving right
It rises and moves right, spring 10 is compressed.When the pressure rebalancing at pressure at the 5th hydraulic fluid port D and the place the 6th hydraulic fluid port C, then valve
Core 2 can be returned to first position from the third place under the action of the restoring force of spring 10.This carrys out those skilled in the art
It says, will be understood by.
A kind of Hydraulically-controproportional proportional valve according to the present invention can by changing the pressure size of the 5th hydraulic fluid port D and the 6th hydraulic fluid port C
To control the first hydraulic fluid port T, the second hydraulic fluid port B, third hydraulic fluid port P and the 4th hydraulic fluid port A opening size, to realize the ratio control of flow
Purpose.The present invention designs for plug-in, and volume compact, structure is simple, facilitates the Integration Design of hydraulic circuit.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more, unless separately
There is clearly specific restriction.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are within the scope of the invention to above-mentioned implementation
Example be changed, modify, replacement and variant, each fall within protection scope of the present invention.
Claims (4)
1. a kind of Hydraulically-controproportional proportional valve characterized by comprising
First valve casing, has the first valve opening for penetrating through first valve casing in left-right direction on first valve casing, and described first
Have on the side wall of valve casing in left-right direction arranged for interval and the first hydraulic fluid port being connected to first valve opening, the second hydraulic fluid port,
The right opening of third hydraulic fluid port and the 4th hydraulic fluid port, first valve opening is configured to the 5th hydraulic fluid port；
Spool, the spool can be movably located in first valve opening and the left end of the spool stretches out described the to the left
There is the first blind hole of opening to the right outside one valve opening, on the spool, have between any two with each other on the side wall of the spool
Every the first through-flow slot, the second through-flow slot, third is through-flow slot and four-way chute, have described in connection on the first through-flow slot
First through flow hole of the first blind hole, second through flow hole of the second through-flow slot with connection first blind hole, the described 4th
Through-flow slot has the third through flow hole for being connected to first blind hole；
Stopple, the stopple are located in first valve opening and are connected with the spool and open for closing the right side of first blind hole
Mouthful；
Valve core housing, the valve core housing is socketed on the left end of the spool and the valve core housing is stretched out in the left end of the spool to the left
Left end, the right end of the valve core housing has flanging；
Fixing seat, the fixing seat have plug division and stopper section, and the plug division of the fixing seat is plugged on first valve opening
Left end, the stopper section of the fixing seat is overlapped on the left side of first valve casing, has on the stopper section of the fixing seat
There is first through hole, the valve core housing passes through left side the stopping against the fixing seat of the first through hole and the flanging to the left
Stopper right side；
Second valve casing, second valve casing have opening the second blind hole to the right, the left end of first valve casing and described solid
The stopper section of reservation cooperates in the right end of second blind hole, has on the internal perisporium of second blind hole against the fixation
The stage portion of the left side of the stopper section of seat has the 6th oil for being connected to second blind hole on the side wall of second valve casing
Mouthful；
First spring base, first spring base are socketed on the valve core housing and are located at the left side of the fixing seat, and described the
One spring base is equipped with gear needle, has the first slotted hole passed through for the gear needle on the valve core housing, has on the spool
The second slotted hole that is being passed through for the gear needle and being adapted to first slotted hole；
Second spring seat, the second spring seat are located in second blind hole so that the left end of the spool passes through to the left, institute
State the left end that second spring seat is fixed on the valve core housing；
Fixing piece, the fixing piece are connected to fix the second spring seat with the valve core housing with the left end of the spool；
Spring, the spring are socketed on the valve core housing, and the right end of the spring is against first spring base and the bullet
The left end of spring is against the second spring seat；
The spool can be switched between first position, the second position and the third place.
2. Hydraulically-controproportional proportional valve according to claim 1, which is characterized in that when the spool is in the first position,
For the spool not by external force, the spool is connected to first hydraulic fluid port with the described first through-flow slot, the spool portion
Second hydraulic fluid port is closed in enfeoffment so that second hydraulic fluid port is connected to the described second through-flow slot, and the spool makes the third hydraulic fluid port
It is connected to the through-flow slot of the third, the spool keeps the 4th hydraulic fluid port partially enclosed so that the 4th hydraulic fluid port and the described 4th
Through-flow slot connection.
3. Hydraulically-controproportional proportional valve according to claim 1, which is characterized in that when the spool is in the second position,
The spool is greater than the active force that the spool is applied by the 6th hydraulic fluid port by the active force that the 5th hydraulic fluid port applies,
The spool right-to-left is mobile, and the spool is connected to first hydraulic fluid port with the described first through-flow slot, the spool closing
The second through-flow slot, the spool are connected to second hydraulic fluid port by the through-flow slot of the third with the third hydraulic fluid port, institute
Stating spool fully opens the 4th hydraulic fluid port so that the 4th hydraulic fluid port is connected to the four-way chute.
4. Hydraulically-controproportional proportional valve according to claim 1, which is characterized in that when the spool is in the third place,
The spool is less than the active force that the spool is applied by the 6th hydraulic fluid port by the active force that the 5th hydraulic fluid port applies,
The spool moves from left to right, and the spool is connected to first hydraulic fluid port with the described first through-flow slot, and the spool makes institute
It states the second hydraulic fluid port to fully open so that second hydraulic fluid port is connected to the described second through-flow slot, the spool makes the third hydraulic fluid port
It is connected to the 4th hydraulic fluid port by the through-flow slot of the third, the spool closes the four-way chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810612368.1A CN108758004B (en) | 2018-06-14 | 2018-06-14 | A kind of Hydraulically-controproportional proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810612368.1A CN108758004B (en) | 2018-06-14 | 2018-06-14 | A kind of Hydraulically-controproportional proportional valve |
Publications (2)
| Publication Number | Publication Date |
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| CN108758004A CN108758004A (en) | 2018-11-06 |
| CN108758004B true CN108758004B (en) | 2019-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810612368.1A Active CN108758004B (en) | 2018-06-14 | 2018-06-14 | A kind of Hydraulically-controproportional proportional valve |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075706B (en) * | 2019-12-26 | 2023-10-31 | 宁波真格液压科技有限公司 | Control valve for reciprocating pump and reciprocating pump comprising same |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004017088B4 (en) * | 2004-04-07 | 2007-03-29 | Hydac Electronic Gmbh | valve device |
| CN201991581U (en) * | 2010-12-31 | 2011-09-28 | 中国航天科技集团公司第六研究院第十一研究所 | Proportional reversing valve |
| DE102011080667A1 (en) * | 2011-08-09 | 2013-02-14 | Robert Bosch Gmbh | Slide valve with a valve slide |
| DE102014109097A1 (en) * | 2014-06-27 | 2015-12-31 | Hilite Germany Gmbh | hydraulic valve |
| CN104482248B (en) * | 2014-11-03 | 2017-05-10 | 济南数锐电子科技有限公司 | Hydraulic operated directional valve |
| CN106090307B (en) * | 2016-06-14 | 2018-05-25 | 太重集团榆次液压工业(济南)有限公司 | A kind of two five flow-through solenoid directional control valves for electric hydraulic steering system |
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| CN108758004A (en) | 2018-11-06 |
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Effective date of registration: 20190926 Address after: 224700 No. 98 Xingda Road, Jianhu County Economic Development Zone, Yancheng City, Jiangsu Province Applicant after: Jiangsu Allen Frow Machinery Manufacturing Co., Ltd. Address before: 523000 Dongguan City, Guangdong Province, Songshan Lake High-tech Industrial Development Zone Headquarters, No. 2, No. 1 District, No. 2 (Cluster Registration) Applicant before: Dongguan hate Paavo Hydraulic Technology Co., Ltd. |
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