CN106050654A - Scroll compressor - Google Patents
Scroll compressor Download PDFInfo
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- CN106050654A CN106050654A CN201610127331.0A CN201610127331A CN106050654A CN 106050654 A CN106050654 A CN 106050654A CN 201610127331 A CN201610127331 A CN 201610127331A CN 106050654 A CN106050654 A CN 106050654A
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- Prior art keywords
- scroll
- frame
- swing
- cold
- producing medium
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The present invention provides a scroll compressor, which not only can maintain the function of the flexible mechanism of the frame, by altering the position of the jaws of the oldham ring such that the outer peripheral part of the fixed scroll member arranged for the oldham 's ring of the jaw clamping cross slot, thereby eliminating the fixed scroll involute pitch enlarging constraints. a scroll compressor includes a fixed scroll having a fixed scroll teeth; the swing scroll is provided with a fixed scroll teeth opposed swing scroll teeth; the flexible frame, the swing scroll teeth opposite the side supporting the swing scroll; a guide frame, the inserted with a flexible frame; and an oldham ring, which surrounds the outer periphery of the flexible frame and prevent rotation of the swing scroll, the swing scroll and the guide frame is provided with a right angle relative to one another with a cross-shaped groove of the phase difference., the oldham 's ring is provided with a cross slot engaging claw.
Description
Technical field
The present invention relates to be applied to refrigeration air-conditioner has the flexible (frame of framework
Compliant) screw compressor of mechanism.
Background technology
The existing screw compressor with framework compliant mechanism pressure in being arranged at hermetic container
In contracting mechanism part, make formed along involute scrollwork on platform dish to have the fixing of wall shape
Scroll combines opposite each otherly with the scrollwork swinging scroll, thus fixed scroll is fixed on
Hermetic container, and it is held in, by swinging scroll, the framework being fixed in hermetic container.
The partition ring of the pawl that the swing scroll kept by framework is had for being limited to not rotation
Keep its posture, in such a state, utilize eccentric bent axle to move in a circle.Now, right
Two scroll elements put are by being combined scrollwork each other thus from the outside of scroll shape
Formed discharge chambe, and by from be arranged at compression mechanical part suction inlet suck cold-producing medium to central authorities
Carry and be compressed, and via be arranged at the outlet of scrollwork central part in compression mechanical part to
Discharging refrigerant in hermetic container.
As the element of screw compressor, there is the cross mechanism being made up of aforementioned partition ring,
And it has and prevents phase place between two scroll elements from producing deviation and thus damaging discharge chambe
Bubble-tight function.In general screw compressor, there is the partition ring of four pawls by by it
In two pawl hookings in swinging the groove of scroll, and by relative in framework etc. for remaining two pawl hookings
In the groove that the parts that hermetic container is fixing are had, thus prevent because of scroll element from then cause
Phase deviation (for example, referring to patent documentation 1) is produced between scroll element.
It addition, framework structure is affixed to the guiding frame of hermetic container and the flexibility being embedded in inside it
The dual structure of framework.By space produced between above-mentioned two framework is injected from discharge chambe
The intermediate pressure cold-producing medium of the compression midway taken out, thus apply towards axially from the back side of flexible frame
The thrust load of top, thus makes flexible frame float in guiding frame.Thus, flexible frame
Be formed as supporting from below the form of above-mentioned swing scroll, thus increase scroll element each other close
Connecing property, and then realize the higher discharge chambe of air-tightness.
Patent documentation 1: International Publication the 2009/154151st
Higher refrigerating capacity is required in the large-scale air conditioners such as mansion combined air conditioners, thus in pressure
Contracting machine needs bigger swept volume.As the expansion method of swept volume, enumerate discharge chambe and hold
The expansion of amount, as one of main maneuver in screw compressor, is then the vertical of scrollwork involute
Distance (spacing) between wall expands.
The existing screw compressor with framework compliant mechanism has the disadvantage that, it may be assumed that
Fixed scroll peripheral part has the cross recess of the pawl engaging for partition ring, if making the spacing of scrollwork expand
Greatly, then cross recess and scroll wraps branch produce interference, and discharge chambe outside can via cross recess with
Scrollwork discharge chambe connects.Thus, limit scrollwork involute spacing largely to expand.
Summary of the invention
The present invention proposes to solve above-mentioned problem, its object is to provide one both to maintain
The function of framework compliant mechanism, further through changing the pawl position of partition ring thus not in fixed scroll
Peripheral part arranges the cross recess of the pawl engaging for partition ring, thus eliminates the involute of fixed scroll
The screw compressor of the restriction that spacing expands.
Screw compressor involved in the present invention possesses: fixed scroll, and it possesses fixed scroll tooth；
Swinging scroll, it possesses opposed with the above-mentioned fixed scroll tooth of above-mentioned fixed scroll and with above-mentioned
Fixed scroll tooth forms the swing scrollwork tooth of discharge chambe together；Flexible frame, its from above-mentioned swing
The a surface bearing above-mentioned swing scroll that scrollwork tooth is contrary；Guiding frame, it is inserted with above-mentioned flexibility
Framework；And partition ring, it surrounds the periphery of above-mentioned flexible frame, and prevents above-mentioned swing vortex
The rotation of part, is provided with mutually tool in above-mentioned swing scroll and above-mentioned guiding frame rectangular
The cross recess of phase contrast, and the pawl engaged with above-mentioned cross recess it is provided with at above-mentioned partition ring.
Further, it is preferably, is formed with cold-producing medium extraction hole in above-mentioned swing scroll, this cold-producing medium
Extraction hole will compress cold-producing medium from above-mentioned discharge chambe to contrary with above-mentioned swing scrollwork tooth halfway
One side is extracted out, is formed with stream at above-mentioned flexible frame, and this stream makes from above-mentioned cold-producing medium extraction hole
The intermediate pressure cold-producing medium extracted out is towards the side circulation contrary with above-mentioned swing scroll and above-mentioned
Flexible frame is provided with upper end thrust face, and this upper end thrust face is by the intermediate pressure from above-mentioned stream
The pressure of cold-producing medium and float, thus above-mentioned swing scroll is supported.
Further, being preferably, above-mentioned flexible frame has large-diameter portion and minor diameter part, above-mentioned large-diameter portion pair
Above-mentioned swing scroll supports, and above-mentioned minor diameter part is that be formed at above-mentioned large-diameter portion with above-mentioned swing
The side that scroll configuration side is contrary, in above-mentioned large-diameter portion and the respective periphery of above-mentioned minor diameter part
Face is provided with the fitting portion chimeric with above-mentioned guiding frame.
Further, being preferably, above-mentioned flexible frame has large-diameter portion and minor diameter part, above-mentioned large-diameter portion pair
Above-mentioned swing scroll supports, and above-mentioned minor diameter part is that be formed at above-mentioned large-diameter portion with above-mentioned swing
The side that scroll configuration side is contrary, in above-mentioned large-diameter portion and the respective periphery of above-mentioned minor diameter part
Face is provided with the fitting portion chimeric with above-mentioned guiding frame.
Further, it is preferably, above-mentioned guiding frame is provided with hinge pin, arranges at above-mentioned flexible frame
There are fraising, above-mentioned hinge pin to insert this fraising, thus phase place is fixed.
Further, it is preferably, above-mentioned flexible frame is provided with the bottom opposed with above-mentioned guiding frame
Thrust face, by arranging groove portion in the part in above-mentioned lower thrust face, thus at above-mentioned flexible box
And form intermediate pressure cryogen between above-mentioned guiding frame.
In screw compressor involved in the present invention, swinging scroll and guiding frame setting
There is a cross recess mutually having rectangular phase contrast, and be provided with at partition ring and engage with cross recess
Pawl.Thus, according to screw compressor involved in the present invention, framework compliant mechanism had both been maintained
Function, further through the pawl position changing partition ring thus is not arranged for ten at fixed scroll peripheral part
The cross recess of the pawl engaging of word ring, it is possible to the involute spacing expansion of elimination fixed scroll
Restriction.
Accompanying drawing explanation
Fig. 1 is the scroll compression representing the High Pressure Shell mode involved by embodiments of the present invention 1
The sectional view of machine.
Fig. 2 is the framework flexible machine representing the compression mechanical part involved by embodiments of the present invention 1
The sectional view of structure.
Framework compliant mechanism when Fig. 3 is to represent the work involved by embodiments of the present invention 1
Sectional view.
Framework compliant mechanism when Fig. 4 is to represent the stopping involved by embodiments of the present invention 1
Sectional view.
Fig. 5 is to represent the refrigeration applying screw compressor involved by embodiments of the present invention 2
The refrigerant loop figure of circulating device.
The explanation of reference
1... hermetic container；2... compression mechanical part；3... fixed scroll；3a... platform dish；3b... fixes
Scrollwork tooth；4... scroll is swung；4a... platform dish；4b... swings scrollwork tooth；4c... cold-producing medium takes out
Hole；4d... cross recess；5... flexible frame；5a... large-diameter portion；5b... minor diameter part；5c... upper end pushes away
Power face；5d... lower thrust face；5e... stream；5f... intermediate pressure cryogen；5g... fitting portion；
5h... fitting portion；5i... reams；6... guiding frame；6a... fitting portion；6b... fitting portion；6c...
Cross recess；6d... thrust face；7... partition ring；7a... pawl；7b... pawl；8... stator；9... rotor；
10... balance element；11... lid；12... bent axle；14... seal member；15... seal member；16...
Outlet；17... suction inlet；18... discharge pipe；19...L lid；20... auxiliary frame；The coldest
Freeze machine oil；22... motor part；23... hinge pin；80... condenser；81... expansion valve；82... vaporizer；
100... screw compressor；200... refrigerating circulatory device.
Detailed description of the invention
Hereinafter, based on accompanying drawing, embodiments of the present invention are illustrated.
Additionally, in the various figures, the part marking identical reference is portion identically or comparably
Point, this is general in the full text of description.
Further, the mode of the element expressed by description full text is to illustrate eventually, and the present invention is also
It is not limited to above-mentioned record.
Embodiment 1.
Fig. 1 is the scroll compression representing the High Pressure Shell mode involved by embodiments of the present invention 1
The sectional view of machine 100.
As it is shown in figure 1, the top in hermetic container 1 is accommodated with compression mechanical part 2, in bottom
It is accommodated with the motor part 22 as drive division.Compression mechanical part 2 possesses fixed scroll 3, swings
Scroll 4, flexible frame 5, guiding frame 6 and partition ring 7 are as main composition key element.
The framework compliant mechanism of compression mechanical part 2 possesses swing scroll 4, flexible frame 5, Yi Jiyin
Drawing strickle guide frame 6 is as main composition key element, and is the mechanism making flexible frame 5 float.
Motor part 22 possesses stator 8, rotor 9, balance element 10 and lid 11 as mainly
Element.Compression mechanical part 2 is connected by bent axle 12 with motor part 22, thus will be by motor
The power that portion 22 produces is transferred to compression mechanical part 2.
Fixed scroll 3 in compression mechanical part 2 possesses the fixed scroll tooth 3b of wall shape, should
Fixed scroll tooth 3b is formed along involute scrollwork on platform dish 3a.Fixed scroll 3 passes through spiral shell
Bolt (not shown) and be fixed on guiding frame 6.
Swing scroll 4 possesses the swing scrollwork tooth 4b, this swing scrollwork tooth 4b of wall shape and exists
Formed along involute scrollwork on platform dish 4a, and its fixed scroll tooth 3b with fixed scroll 3
Opposed and form discharge chambe together with fixed scroll tooth 3b.Swing scroll 4 by flexible frame 5
From a surface bearing contrary with swinging scrollwork tooth 4b.
Being formed with cold-producing medium extraction hole 4c swinging scroll 4, cold-producing medium extraction hole 4c will compression
The cold-producing medium of midway from by fixed scroll tooth 3b with swing the discharge chambe that constituted of scrollwork tooth 4b to
Swing one side contrary for scrollwork tooth 4b to extract out.
It addition, swinging the cross recess 4d that scroll 4 is formed for the pawl 7a engaging of partition ring 7.
Flexible frame 5 has large-diameter portion 5a and minor diameter part 5b, large-diameter portion 5a supporting and swings scroll
4, minor diameter part 5b be formed at large-diameter portion 5a with swing scroll 4 configure contrary side, side
Lower section.The upper surface of the large-diameter portion 5a of flexible frame 5 is that the upper end of supporting swing scroll 4 pushes away
Power face 5c.Thrust face between the large-diameter portion 5a and minor diameter part 5b of flexible frame 5 is and lead-frame
The lower thrust face 5d that frame 6 is opposed.Flexible frame 5 inserts and is held in guiding frame 6.
It is formed with stream 5e, stream 5e at flexible frame 5 to make from the extraction of cold-producing medium extraction hole 4c
Intermediate pressure cold-producing medium is to the side circulation contrary with swinging scroll 4.It addition, at flexible frame 5
Lower thrust face 5d, formed between guiding frame 6 by arranging groove portion in a part
There is intermediate pressure cryogen 5f.Connect in intermediate pressure cryogen 5f and have stream 5e.
Outer peripheral face at the large-diameter portion 5a of flexible frame 5 is provided with and the inner peripheral surface of guiding frame 6
Chimeric fitting portion (protuberance) 5g, and be provided with and lead-frame at the outer peripheral face of minor diameter part 5b
Fitting portion (protuberance) 5h that the inner peripheral surface of frame 6 is chimeric.
Guiding frame 6 is fixed on hermetic container 1 by welding.Guiding frame 6 is can supply tool
The mode having the flexible frame 5 of large-diameter portion 5a and minor diameter part 5b to insert has big footpath, central diameter, little
Multiple end differences in footpath and contracted diameter.The inner circumferential of the guiding frame 6 central diameter in multiple end differences
Face is provided with fitting portion (recess) 6a that the outer peripheral face of the large-diameter portion 5a with flexible frame 5 is chimeric,
And the outer peripheral face that the inner peripheral surface at path is provided with the minor diameter part 5b with flexible frame 5 is chimeric
Fitting portion (recess) 6b.Fitting portion 5g, 5h, 6a, 6b are also referred to as socket joint (in low) portion,
It makes the concavo-convex chimeric, so that two parts are integrated accurately of small periphery.
Near fitting portion 5g, 5h, 6a, 6b, it is configured with and prevents cold-producing medium from suppressing from centre
The seal member 14,15 of cryogen space 5f leakage.Seal member 14 is multiple by guiding frame 6
Seal between the outer peripheral face of the inner peripheral surface of the central diameter in end difference and the large-diameter portion 5a of flexible frame 5.
Seal member 15 is by the inner peripheral surface of the path in multiple end differences of guiding frame 6 and flexible frame 5
Minor diameter part 5b outer peripheral face between seal.
Upper surface at guiding frame 6 is formed for the cross recess 6c of the pawl 7b engaging of partition ring 7.
The cross recess 6c of the upper surface of guiding frame 6 has relative to the cross recess 4d swinging scroll 4
The phase contrast at right angle.
At guiding frame 6, and at the thrust face opposed with the lower thrust face 5d of flexible frame 5
6d, is provided with hinge pin 23 prominent upward in the way of press-in.
On the other hand, at the lower thrust face 5d of flexible frame 5, it is provided with fraising 5i, fraising
5i lower opening, hinge pin 23 inserts fraising 5i, thus phase place is fixed.
In the periphery of flexible frame 5, it is provided with encirclement flexible frame 5 and prevents from swinging scroll 4
The partition ring 7 of rotation.Partition ring 7 is circular, has four pawls 7a, 7b.
Each two pawls 7a, 7b that partition ring 7 is had have rectangular phase contrast with mutual and set
It is placed in cross recess 4d, 6c engaging swinging scroll 4 and guiding frame 6, thus limits appearance
Gesture is so that swinging scroll 4 and will not rotating relative to fixed scroll 3.
It addition, at the center of fixed scroll 3, be provided with from compression mechanical part 2 discharging refrigerant
Outlet 16.In the outside of fixed scroll 3, oriented compression mechanical part 2 is set and sucks refrigeration
The suction inlet 17 of agent.In the lower section of guiding frame 6, it is provided with and makes to be expelled in hermetic container 1
The discharge pipe 18 that the cold-producing medium of high pressure flows out to refrigerating circuit (outside).
The bottom of motor part 22 is provided with L lid 19.It addition, set in the lower section of motor part 22
It is equipped with the auxiliary frame 20 that bent axle 12 is carried out axle supporting.Ratio auxiliary frame in hermetic container 1
The position in frame 20 portion more on the lower has stockpiled refrigerator oil 21.
In the compression mechanical part 2 of the screw compressor 100 of the High Pressure Shell mode so constituted,
Make fixed scroll 3 and swing scroll 4 and be opposed to combination, and by eccentric bent axle 12 from
Motor part 22 obtains power, moves in a circle so that swinging scroll 4, wherein, and fixing whirlpool
Rotating part 3 has the fixed scroll tooth of the wall shape formed on platform dish 3a along involute scrollwork
3b, swing scroll 4 have relative to fixed scroll 3 with same shape rotation turnback form
The swing scrollwork tooth 4b with wall shape.
Now, pawl 7a, 7b that partition ring 7 is possessed is along mutually to have rectangular phase contrast
Mode be arranged at and swing cross recess 4d, 6c of scroll 4 and guiding frame 6 and do parallel fortune
Dynamic, thus limit the rotary motion swinging scroll 4 relative to fixed scroll 3.
Here, the fixed scroll 3 being opposed to combination passes through wall each other with swinging scroll 4
Contact, thus forms discharge chambe from the outside of scroll shape, and by swinging the circumference of scroll 4
The cold-producing medium sucked from suction inlet 17 is carried towards the center of scrollwork and is compressed by motion, and from
It is arranged at outlet 16 discharging refrigerant in hermetic container 1 at the center of compression mechanical part 2.
The cold-producing medium of the high pressure being expelled in hermetic container 1 from discharge pipe 18 to refrigerating circuit (outside)
Flow out.
Fig. 2 is to represent the flexible box making compression mechanical part 2 involved by embodiments of the present invention 1
The sectional view of the framework compliant mechanism that frame 5 floats.
In the discharge chambe formed by fixed scroll 3 and the wall swinging scroll 4, from suction
Mouth 17 introduces cold-producing mediums, and from swinging scrollwork terminal part and the fixed scroll 3 of scroll 4
The contact of scrollwork wall and close moment of discharge chambe and proceed by compression.Along with swinging scroll 4
Circular motion, discharge chambe moves towards the center of scrollwork, and is arranged at the system swinging scroll 4
Cryogen extraction hole 4c connects with the discharge chambe of movement, thus the cold-producing medium compressed in this moment
A part by cold-producing medium extraction hole 4c by swing scroll 4 contrary with discharge chambe side
Side extracts (A in figure) out.
The cold-producing medium being drawn out of by the stream 5e of flexible frame 5 towards being arranged at flexible frame 5
And intermediate pressure cryogen 5f of the circular trough between guiding frame 6 flows into (B in figure).By
This, the pressure of intermediate pressure cryogen 5f raises.And then, flexible frame 5 is applied towards
The axially power of top, so that flexible frame 5 floats (C in figure).
Being accompanied by this, flexible frame 5 supports pendulum from below at the upper end thrust face 5c being in its upper end
Dynamic scroll 4 (D in figure).Thus, crest top land and the fixed scroll of swing scroll 4 are reduced
Gap between the tooth bottom surface of 3, and reduce tooth bottom surface and the fixed scroll swinging scroll 4
Gap between the crest top land of 3, thus reduce and leaked, by cold-producing medium, the loss brought.
Framework compliant mechanism when Fig. 3 is to represent the work involved by embodiments of the present invention 1
Sectional view.
As it is shown on figure 3, by will be pressed into being fixed on the hinge pin 23 of the thrust face 6d of guiding frame 6
It is inserted in the fraising 5i of the lower thrust face 5d being arranged at flexible frame 5, thus retrains flexible box
The phase place of frame 5.
It addition, arrow institute in the flexible frame 5 such as figure floated by the intermediate pressure cold-producing medium extracted out
Show, utilize be arranged between flexible frame 5 and guiding frame 6 two fitting portion 5g, 5h,
6a, 6b retrain the inclination that flexible frame 5 is radially oriented.These are utilized to retrain, by flexible box
The degree of freedom of frame 5 is only defined in axially, thus the position of the stream 5e of the flexible frame 5 when working
Put and radially and do not producing change in the direction of rotation centered by axle, and swinging scroll
Each turn of 4 is connected with discharge chambe by cold-producing medium extraction hole 4c with constant degree in crank angle,
It is possible to stably carry out the taking-up of intermediate pressure cold-producing medium.Thereby, it is possible to obtain constant towards
The axially buoyancy of top, and do not make the pressure in intermediate pressure space change significantly.
Framework compliant mechanism when Fig. 4 is to represent the stopping involved by embodiments of the present invention 1
Sectional view.
As shown in Figure 4, when static, flexible frame 5 does not floats relative to guiding frame 6, and
Be carry out contacting by the lower thrust face 5d in figure, static, and swing scroll 4 with
Flexible frame 5 upper end thrust face 5c contact form under static.Bottom from flexible frame 5
The thrust face 5d accumulative size (I size in figure) ratio to the crest top land swinging scroll 4
From the thrust face 6d of guiding frame 6 accumulative size (figure to the tooth bottom surface of fixed scroll 3
Middle L dimension) little (I ＜ L), arrange minim gap be flexible frame 5 float the lock with scrollwork
Surely prevent necessary.
Therefore, the face of ground connection that is pushing away of guiding frame 6 when screw compressor 100 static
The lower thrust face 5d of power face 6d and flexible frame 5, upper end thrust face 5c, swing scroll 4
Platen thrust face, crest top land, the surface texture of tooth bottom surface and each face distance size each other lead to
Cross machining and be managed with high accuracy.
According to embodiment 1, it is provided with the cold-producing medium to compression midway at framework compliant mechanism
Carry out intermediate pressure cryogen 5f between flexible frame 5 and guiding frame 6 bled.
It addition, in order to high accuracy management parts assemble time thrust direction height, thus have size,
Surface texture is by the various thrust bearing plane of high management.It addition, have for preventing flexible frame
The inclination of radial direction when floating of 5, loosening between flexible frame 5 and guiding frame 6
Two fitting portions 5g, 5h, 6a, 6b.
In the past, bore part to realize intermediate pressure cryogen and various thrusts, needed soft
Property framework has following the two face, it may be assumed that contact with guiding frame time static and its position dimension,
The bearing plane (referred to as A face) that the surface textures such as flatness are managed in high precision；And not with guiding
Contact therewith and consistently form the face (referred to as B face) in the space bled.Therefore, so far,
Flexible frame needs have flange part to arrange A face and B face.In order to abolish fixed scroll
Cross recess, need to change the pawl of partition ring and cross recess to guiding frame side, but flexible box
The existence of the flange part of frame makes it be difficult to.
To this, in embodiment 1, it is possible to implement in the past by having two faces with a face
That implement, for making framework compliant mechanism set up and the point of the function of required flexible frame 5,
Thus save the flange part of flexible frame 5, abolish the cross recess of the peripheral part of fixed scroll 3,
And cross recess 6c is set at guiding frame 6.In such manner, it is possible in the function maintaining framework compliant mechanism
State under realize the expansion of scrollwork involute spacing.Thereby, it is possible to increase discharge chambe capacity and not
Increase compressor main body such that it is able to realize the screw compressor with more capacity, greater ability
100。
According to above embodiment 1, swing scroll 4 and guiding frame 6 are provided with phase
Have cross recess 4d, 6c of rectangular phase contrast mutually, and be provided with and cross recess at partition ring 7
Pawl 7a, 7b of 4d, 6c engaging.Thus, save the flange part of flexible frame 5, thus abolish
The cross recess of the peripheral part of fixed scroll 3.Therefore, it is possible in the merit maintaining framework compliant mechanism
The expansion of scrollwork involute spacing is realized under the state of energy.Thereby, it is possible to increase discharge chambe capacity and
Do not increase compressor main body such that it is able to realize the scroll compression with more capacity, greater ability
Machine 100.
Being formed with cold-producing medium extraction hole 4c swinging scroll 4, cold-producing medium extraction hole 4c will compression
The cold-producing medium of midway is extracted out, at flexible box to the one side contrary with swinging scrollwork tooth 4b from discharge chambe
Frame 5 is formed with the intermediate pressure cold-producing medium that stream 5e, stream 5e make to extract out from cold-producing medium extraction hole 4c
To the side circulation contrary with swinging scroll 4, and being provided with upper end thrust face 5c, upper end pushes away
Power face 5c floats by the pressure of the intermediate pressure cold-producing medium from stream 5e, thus supports swing
Scroll 4.Prop up thereby, it is possible to utilize the pressure of intermediate pressure cold-producing medium to make flexible frame 5 float
Hold swing scroll 4, thus reduce the tooth of crest top land and the fixed scroll 3 swinging scroll 4
Gap between bottom surface, and reduce the tooth of tooth bottom surface and the fixed scroll 3 swinging scroll 4
Gap between end face, it is possible to reduce the loss brought because of cold-producing medium leakage.
Flexible frame 5 has the large-diameter portion 5a supporting swing scroll 4 and is formed at
The minor diameter part 5b configuring contrary side, side with swing scroll 4 of large-diameter portion 5a, and greatly
Footpath portion 5a and the respective outer peripheral face of minor diameter part 5b are provided with the fitting portion chimeric with guiding frame 6
5g、5h、6a、6b.Thus, the degree of freedom of flexible frame 5 is only defined in axially, thus work
The position of the stream 5e of the flexible frame 5 when making is in the direction of rotation radially and centered by axle
On do not produce change, and in swinging each turn of scroll 4 with constant degree in crank angle by system
Cryogen extraction hole 4c and connect with discharge chambe, it is possible to stably carry out intermediate pressure cold-producing medium
Take out.Thereby, it is possible to obtain the constant buoyancy towards axially top, and do not make intermediate pressure space
Pressure change significantly.
Guiding frame 6 is provided with hinge pin 23, flexible frame 5 is provided with fraising 5i, hinge pin
23 insert fraising 5i, thus phase place is fixed.Thus, the phase place of constraint flexible frame 5, and
And the degree of freedom of flexible frame 5 is only defined in axially.
Flexible frame 5 is provided with the lower thrust face 5d opposed with guiding frame 6, and passes through
A part at lower thrust face 5d arranges groove portion, thus is formed between guiding frame 6
Intermediate pressure cryogen 5f.Thus, the cold-producing medium court of the stream 5e of flexible frame 5 has been passed through
To intermediate pressure cryogen 5f of the circular trough being arranged between flexible frame 5 and guiding frame 6
Flow into.Thus, the pressure of intermediate pressure cryogen 5f raises.And then, to flexible frame 5
Apply to make flexible frame 5 float towards the power of axially top so that flexible frame 5 can be at it
The upper end thrust face 5c of upper end supports swing scroll 4 from below, thus reduces swing scroll 4
Crest top land and the tooth bottom surface of fixed scroll 3 between gap, and reduce swing scroll 4
Tooth bottom surface and the crest top land of fixed scroll 3 between gap, it is possible to reduce because of cold-producing medium
The loss leaked and bring.
Embodiment 2.
Fig. 5 is to represent to apply screw compressor 100 involved by embodiments of the present invention 2
The refrigerant loop figure of refrigerating circulatory device 200.
Utilize refrigerant piping by scroll compression as it is shown in figure 5, refrigerating circulatory device 200 is formed
The kind of refrigeration cycle that machine 100, condenser 80, expansion valve 81 and vaporizer 82 couple together is returned
Road.And, sucked by screw compressor 100 from the cold-producing medium of vaporizer 82 outflow and become high
The cold-producing medium of temperature high pressure.The cold-producing medium becoming High Temperature High Pressure is condensed in condenser 80
And become liquid refrigerant.The cold-producing medium becoming liquid refrigerant is subtracted in expansion valve 81
Compression swelling and become the gas-liquid two-phase cold-producing medium of low-temp low-pressure, gas-liquid two-phase cold-producing medium evaporation
Device 82 carries out heat exchange.
The screw compressor 100 of embodiment 1 can be applied to such refrigerating circulatory device 200.
Claims (5)
1. a screw compressor, it is characterised in that possess:
Fixed scroll, it possesses fixed scroll tooth；
Swinging scroll, it possesses swing scrollwork tooth, this swing scrollwork tooth and described fixed scroll
Described fixed scroll tooth opposed, and form discharge chambe together with described fixed scroll tooth；
Flexible frame, it is from swinging vortex described in a surface bearing contrary with described swing scrollwork tooth
Part；
Guiding frame, it is inserted with described flexible frame；And
Partition ring, the periphery of its described flexible frame of encirclement, prevent the rotation of described swing scroll,
It is provided with in described swing scroll and described guiding frame and mutually has rectangular phase place
The cross recess of difference, and the pawl engaged with described cross recess it is provided with at described partition ring.
Screw compressor the most according to claim 1, it is characterised in that
It is formed with cold-producing medium extraction hole, during this cold-producing medium extraction hole will be compressed in described swing scroll
The cold-producing medium on way is extracted out to the one side contrary with described swing scrollwork tooth from described discharge chambe,
Being formed with stream at described flexible frame, this stream makes from the extraction of described cold-producing medium extraction hole
Intermediate pressure cold-producing medium is towards the side circulation contrary with described swing scroll, and described flexible box
Erection is equipped with upper end thrust face, and this upper end thrust face is by the intermediate pressure cold-producing medium from described stream
Pressure and float, thus described swing scroll is supported.
Screw compressor the most according to claim 1 and 2, it is characterised in that
Described flexible frame has large-diameter portion and minor diameter part, and described large-diameter portion is to described swing scroll
Support, described minor diameter part be formed at described large-diameter portion with described swing scroll configuration side phase
Anti-side, the respective outer peripheral face at described large-diameter portion and described minor diameter part is provided with described
The fitting portion that guiding frame is chimeric.
Screw compressor the most according to claim 1 and 2, it is characterised in that
Described guiding frame is provided with hinge pin,
Described flexible frame is provided with fraising, and described hinge pin inserts this fraising, thus phase place is consolidated
Fixed.
5. the screw compressor described in claim 1 or 2, it is characterised in that
Described flexible frame is provided with the lower thrust face opposed with described guiding frame, by
The part in described lower thrust face arranges groove portion, thus at described flexible box and described guiding frame
Between formed intermediate pressure cryogen.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2015/060700 WO2016162912A1 (en) | 2015-04-06 | 2015-04-06 | Scroll compressor |
| JPPCT/JP2015/060700 | 2015-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106050654A true CN106050654A (en) | 2016-10-26 |
Family
ID=56817359
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610127331.0A Pending CN106050654A (en) | 2015-04-06 | 2016-03-07 | Scroll compressor |
| CN201620172246.1U Active CN205559276U (en) | 2015-04-06 | 2016-03-07 | Scroll compressor |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620172246.1U Active CN205559276U (en) | 2015-04-06 | 2016-03-07 | Scroll compressor |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN106050654A (en) |
| WO (1) | WO2016162912A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108700083A (en) * | 2016-03-03 | 2018-10-23 | 株式会社Ihi | Rotating machinery |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016162912A1 (en) * | 2015-04-06 | 2016-10-13 | 三菱電機株式会社 | Scroll compressor |
| JP6863405B2 (en) * | 2019-05-21 | 2021-04-21 | ダイキン工業株式会社 | Scroll compressor and refrigerator equipped with it |
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|---|---|---|---|---|
| JPH09158862A (en) * | 1995-12-05 | 1997-06-17 | Hitachi Ltd | Scroll compressor |
| CN1333433A (en) * | 2000-07-11 | 2002-01-30 | 富士通将军股份有限公司 | Turbine compressor |
| CN1415861A (en) * | 2001-10-29 | 2003-05-07 | 三菱电机株式会社 | Whirl compressor |
| CN1629491A (en) * | 2003-12-20 | 2005-06-22 | Lg电子株式会社 | Oil supply device of scroll compressor |
| CN1865705A (en) * | 2005-05-20 | 2006-11-22 | 富士通将军股份有限公司 | Scroll compressor |
| CN205559276U (en) * | 2015-04-06 | 2016-09-07 | 三菱电机株式会社 | Scroll compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4442633B2 (en) * | 2007-04-25 | 2010-03-31 | 三菱電機株式会社 | Scroll compressor |
-
2015
- 2015-04-06 WO PCT/JP2015/060700 patent/WO2016162912A1/en active Application Filing
-
2016
- 2016-03-07 CN CN201610127331.0A patent/CN106050654A/en active Pending
- 2016-03-07 CN CN201620172246.1U patent/CN205559276U/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09158862A (en) * | 1995-12-05 | 1997-06-17 | Hitachi Ltd | Scroll compressor |
| CN1333433A (en) * | 2000-07-11 | 2002-01-30 | 富士通将军股份有限公司 | Turbine compressor |
| CN1415861A (en) * | 2001-10-29 | 2003-05-07 | 三菱电机株式会社 | Whirl compressor |
| CN1629491A (en) * | 2003-12-20 | 2005-06-22 | Lg电子株式会社 | Oil supply device of scroll compressor |
| CN1865705A (en) * | 2005-05-20 | 2006-11-22 | 富士通将军股份有限公司 | Scroll compressor |
| CN205559276U (en) * | 2015-04-06 | 2016-09-07 | 三菱电机株式会社 | Scroll compressor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108700083A (en) * | 2016-03-03 | 2018-10-23 | 株式会社Ihi | Rotating machinery |
| CN108700083B (en) * | 2016-03-03 | 2020-06-02 | 株式会社Ihi | Rotary machine |
| US10975878B2 (en) | 2016-03-03 | 2021-04-13 | Ihi Corporation | Rotary machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN205559276U (en) | 2016-09-07 |
| WO2016162912A1 (en) | 2016-10-13 |
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