CN207297347U - Screw compressor - Google Patents
Screw compressor Download PDFInfo
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- CN207297347U CN207297347U CN201720836672.5U CN201720836672U CN207297347U CN 207297347 U CN207297347 U CN 207297347U CN 201720836672 U CN201720836672 U CN 201720836672U CN 207297347 U CN207297347 U CN 207297347U
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- main shaft
- screw compressor
- balance weight
- connecting shaft
- driving handle
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Abstract
It the utility model is related to a kind of screw compressor.The screw compressor includes main shaft, movable orbiting scroll, connecting shaft, driving handle and balance weight.Connecting shaft is arranged at the end of main shaft, and for connecting shaft between main shaft and movable orbiting scroll, the axis of connecting shaft is parallel with the axis of main shaft, and has specific range between the axis of connecting shaft and the axis of main shaft；The axial direction of driving handle along connecting shaft is sheathed on the one end of connecting shaft away from main shaft, and driving handle is connected respectively with connecting shaft and movable orbiting scroll；Balance weight is connected to the end of main shaft, and balance weight is connected on the same end of main shaft with connecting shaft, and balance weight is separated with driving handle.Above-mentioned screw compressor, can mitigate tilting moment during movable orbiting scroll operating, so that the abrasion caused by avoiding tilting moment when movable orbiting scroll operates excessive between movable orbiting scroll and fixed scroll, improves the stability that screw compressor is run.In addition, driving handle and balance weight are individually processed, the difficulty of processing and production cost of screw compressor can also be reduced.
Description
Technical field
Refrigeration technology field is the utility model is related to, more particularly to a kind of screw compressor.
Background technology
Screw compressor includes fixed scroll, movable orbiting scroll, and fixed scroll and movable orbiting scroll cooperate, and fixed scroll and movable orbiting scroll it
Between formed three compression chambers：Suction muffler, middle pressure chamber and discharge chamber.Screw compressor further includes eccentric drive handle, eccentric drive handle
It is eccentric structure with respect to movable orbiting scroll, eccentric drive handle drives movable orbiting scroll to revolve round the sun with respect to fixed scroll, realizes the compression of gas.Movable orbiting scroll
Continuous rotation, you can carry out the continuous compression of gas again and again.
But traditional screw compressor, during movable orbiting scroll is rotating, eccentric drive handle can produce uneven centrifugation
Power, the imbalance centrifugal force are eventually transferred on movable orbiting scroll, can so increase the turning moment and tilting moment of movable orbiting scroll, so that
Aggravation movable orbiting scroll topple and rotation, cause movable orbiting scroll operation rock, movable orbiting scroll changes around the rotating radius of gyration of fixed scroll
Become, the scroll wrap of movable orbiting scroll and fixed scroll cannot engage well, serious wear, so as to cause screw compressor operation unstable
It is fixed.
Utility model content
Based on this, it is necessary to in traditional screw compressor, eccentric drive handle can produce unbalanced moments, so that plus
Acute movable orbiting scroll topple and rotation, a kind of the problem of causing screw compressor fluctuation of service, there is provided screw compressor.
A kind of screw compressor, including main shaft and movable orbiting scroll.The screw compressor further includes main shaft, connecting shaft, driving
Handle and balance weight.The connecting shaft is arranged at the end of the main shaft, and the connecting shaft is located at the main shaft and the movable orbiting scroll
Between, the axis of the connecting shaft is parallel with the axis of the main shaft, and the axis of the axis of the connecting shaft and the main shaft
Between there is specific range；The axial direction of the driving handle along the connecting shaft is sheathed on one of the connecting shaft away from the main shaft
End, and the driving handle is connected respectively with the connecting shaft and the movable orbiting scroll；The balance weight is connected to the end of the main shaft
Portion, and the balance weight is connected on the same end of the main shaft with the connecting shaft, the balance weight and the driving handle
Phase separation.
Above-mentioned screw compressor, balance weight are separated with driving handle, on the one hand, it is relatively quiet that balance weight can balance movable orbiting scroll
The rotating inertia force and rotatory inertia torque that tilting moment during the disk revolution of whirlpool produces, to ensure balance during movable orbiting scroll operating
Property.On the other hand, driving handle revolves round the sun as independent member drives movable orbiting scroll with respect to fixed scroll, and ensure that will not produce on driving handle
The raw extra tilting moment for putting on movable orbiting scroll.In this way, can mitigate movable orbiting scroll operating when tilting moment so that avoid because
The excessive caused abrasion between movable orbiting scroll and fixed scroll of tilting moment when movable orbiting scroll operates, improves screw compressor operation
Stability.In addition, driving handle and balance weight are individually processed, the difficulty of processing of screw compressor can also be reduced and be produced into
This.
In one of the embodiments, gap is equipped between the balance weight and the driving handle.
In one of the embodiments, screw compressor further includes resigning pin, and the resigning pin is arranged at the main shaft and leans on
The end of the nearly connecting shaft, described step down are sold towards the driving handle and the axis of the pin parallel to the main shaft of stepping down；
Relief hole is offered on the driving handle, the relief hole is engaged with the resigning pin.
In one of the embodiments, after the resigning pin stretches into the relief hole, pin and the relief hole of stepping down
There are gap between corresponding surface.
In one of the embodiments, one end of balance weight offers location hole described in the main shaft face；The vortex
Compressor further includes positioning pin, and the positioning pin is arranged at the side of main shaft described in the balance weight face, the positioning pin with
The location hole is engaged.
In one of the embodiments, screw lock is passed through between the balance weight and the main shaft.
In one of the embodiments, the screw compressor further includes rotor and two clump weights, and the rotor is arranged
In on the main shaft；Two clump weights are respectively arranged at the both ends of the rotor, and two clump weights perpendicular to
Projection in the plane of the main shaft is positioned at the both sides of the main shaft.
In one of the embodiments, screw compressor further includes cylinder body, the main shaft, the connecting shaft, the driving
Handle and the balance weight may be contained within the cylinder body, and gap is equipped between the inner wall of the cylinder body and the balance weight.
In one of the embodiments, the balance weight is between the main shaft and the movable orbiting scroll, and the balance
Gap is equipped between block and the movable orbiting scroll.
Brief description of the drawings
Fig. 1 is the structure diagram of the screw compressor of one embodiment of the utility model；
Fig. 2 be Fig. 1 shown in screw compressor along A-A to sectional view；
Fig. 3 is the driving handle of screw compressor and the schematic diagram of balance weight shown in Fig. 1；
Fig. 4 is the sectional view of the B-B direction shown in Fig. 3.
Embodiment
To enable the above-mentioned purpose of the utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings to this
The embodiment of utility model is described in detail.
Fig. 1 to Fig. 3 is refer to, Fig. 1 is the structure diagram of the screw compressor 100 of the present embodiment, and Fig. 2 is shown in Fig. 1
Screw compressor 100 along A-A to sectional view, Fig. 3 be Fig. 1 shown in screw compressor 100 driving handle 17 and balance weight
19 schematic diagram.As shown in Figure 1 to Figure 3, a kind of screw compressor 100 includes main shaft 13, movable orbiting scroll 11, connecting shaft 15, driving
Handle 17 and balance weight 19.During screw compressor 100 is run, main shaft 13 is continuously rotated around its axis, with band dynamic vortex
Other components of compressor 100 rotate.Connecting shaft 15 is arranged at the end of main shaft 13, and connecting shaft 15 is located at main shaft 13 and movable orbiting scroll
Between 11, the axis of connecting shaft 15 is parallel with the axis of main shaft 13, and has between the axis of the axis of connecting shaft 15 and main shaft 13
There is specific range.Specifically, the diameter of connecting shaft 15 is less than the diameter of main shaft 13, and connecting shaft 15 is rotated with main shaft 13, and
Axis around main shaft 13 rotates.The axial direction of driving handle 17 along connecting shaft 15 is sheathed on the one end of connecting shaft 15 away from main shaft 13, and
Driving handle 17 is connected respectively with connecting shaft 15 and movable orbiting scroll 11, and driving handle 17 is rotated with connecting shaft 15, so that driving handle 17 drives
Dynamic movable orbiting scroll 11 is rotated around fixed scroll.Balance weight 19 is connected to the end of main shaft 13, and balance weight 19 is connected to connecting shaft 15
On the same end of main shaft 13, balance weight 19 is separated with driving handle 17.
Above-mentioned screw compressor 100, balance weight 19 are separated with driving handle 17, on the one hand, balance weight 19 can be with balanced dynamic
Whirlpool disk 11 is flat during ensureing that movable orbiting scroll 11 operates with respect to rotating inertia force and rotatory inertia torque caused by fixed scroll revolution
Weighing apparatus property.On the other hand, driving handle 17 revolves round the sun as independent member drives movable orbiting scroll 11 with respect to fixed scroll, ensure that in driving handle 17
On will not produce the extra tilting moment for putting on movable orbiting scroll 11.This way it is possible to avoid the power of toppling when movable orbiting scroll 11 operates
Square, so that the abrasion caused by avoiding tilting moment when movable orbiting scroll 11 operates between movable orbiting scroll 11 and fixed scroll, improves whirlpool
Revolve the stability that compressor 100 is run.In addition, driving handle 17 and balance weight 19 are individually processed, scroll compression can also be reduced
The difficulty of processing and production cost of contracting machine 100.
It should be noted that the axis of connecting shaft 15 and the specific range of the axis of main shaft 13 are preset in advance, with true
Protecting driving handle 17 drives movable orbiting scroll 11 to move in a circle around the basic circle center of circle of fixed scroll using the specific range as radius.
As shown in Fig. 2, screw compressor 100 further includes cylinder body 21, cylinder body 21 is used to accommodate the other of screw compressor 100
Component.Main shaft 13, connecting shaft 15, driving handle 17 and balance weight 19 may be contained within cylinder body 21.
Screw compressor 100 further includes rotor 23 and two clump weights 25, and rotor 23 is sheathed on main shaft 13, and rotor 23 is used
Rotated in drive shaft 13.Two clump weights 25 are respectively arranged at the both ends of rotor 23, and two clump weights 25 are perpendicular to master
Projection in the plane of axis 13 is positioned at the both sides of main shaft 13.In this way, two clump weights 25 can be with the institute when rotated of balancing main shaft 13
The out-of-balance force and torque of generation, ensure 13 rotating balance of main shaft, so that further such that the operating of screw compressor 100 is flat
Weighing apparatus.
As shown in Fig. 2, screw compressor 100 further includes resigning pin 27, resigning pin 27 is arranged at main shaft 13 close to connecting shaft
15 one end, axis of the resigning pin 27 towards driving handle 17 and resigning pin 27 parallel to main shaft 13；Offer and allow on driving handle 17
Position hole 29, relief hole 29 are engaged with resigning pin 27.In this way, the cooperation by resigning pin 27 and relief hole 29, it is possible to achieve drive
Positioning when dynamic handle 17 is assembled with connecting shaft 15 so that driving handle 17 and the cooperation of connecting shaft 15 are accurate.
Further, after resigning pin 27 stretches into relief hole 29, exist between resigning pin 27 and 29 corresponding surface of relief hole
Gap.When screw compressor 100 runs well, driving handle 17 drives movable orbiting scroll 11 to be revolved around fixed scroll with the default radius of gyration
Turn, the scroll wrap of movable orbiting scroll 11 improves the compressibility of screw compressor 100 all the time with the scroll wrap of fixed scroll there are meshing point
Energy.In actual processing assembling, the scroll wrap molded line of movable orbiting scroll 11 and the scroll wrap molded line of fixed scroll can be there are deviations, for example are vortexed
There is protrusion on tooth wall, or impurity is mixed between the scroll wrap of movable orbiting scroll 11 and the scroll wrap of fixed scroll, i.e., so that movable orbiting scroll
Reduce around the rotating radius of gyration of fixed scroll, and main shaft 13, driving handle the driving rotating radius of gyration of movable orbiting scroll are default fixations
, such that the scroll wrap of movable orbiting scroll 11 and fixed scroll interferes, cause movable orbiting scroll and fixed scroll is worn and scroll compression
The problem of contracting 100 fluctuation of service of machine.In the present embodiment, between existing between resigning pin 27 and 29 corresponding surface of relief hole
Gap so that driving handle 17 can be swung with respect to connecting shaft 15, and the swing of driving handle 17 can adjust the radius of gyration of movable orbiting scroll 11,
The actual radius of gyration of movable orbiting scroll 11 is set suitably to increased or decrease.Once occur between movable orbiting scroll and the scroll wrap of fixed scroll dry
Relate to, which causes driving handle 17 accordingly to swing, and then reduces the radius of gyration of movable orbiting scroll, is stepped down with realizing.After allowing,
Since the effect of the rotatory inertia torque of movable orbiting scroll is so that the radius of gyration of movable orbiting scroll increases again, to realize dynamic fixed scroll just
Often engagement, so as to ensure the scroll wrap molded line of the movable orbiting scroll 11 and fixed scroll not unnecessary mill caused by machining deviation or impurity
Damage, and ensure the good engagement of the scroll wrap of movable orbiting scroll and fixed scroll.Simultaneously because resigning pin 27 is corresponding with relief hole 29
There are gap between surface, the fit precision of relief hole 29 and resigning pin 27 can also be reduced so that resigning pin 27 and relief hole
29 handling ease.
Balance weight 19 is equipped with gap between main shaft 13 and movable orbiting scroll 11 between balance weight 19 and movable orbiting scroll 11.Example
Such as, the gap between balance weight 19 and movable orbiting scroll 11 is 1mm.In this manner it is ensured that when screw compressor 100 works, balance weight
Phenomenon is not interfered between 19 and movable orbiting scroll 11 so that 100 stable operation of screw compressor.
Gap is equipped between the inner wall of balance weight 19 and cylinder body 21.For example, between the inner wall of balance weight 19 and cylinder body 21
Gap is 1.5mm.So so that balance weight 19 will not interfere phenomenon to screw compressor 100 with cylinder body 21 at work, protect
Demonstrate,prove 100 stable operation of screw compressor.
Gap is equipped between balance weight 19 and driving handle 17.In this way, it will not be done between balance weight 19 and driving handle 17
Phenomenon is related to, ensures the operation of 100 normal table of screw compressor.Further, the gap-ratio between balance weight 19 and driving handle 17
It is smaller, for example the gap can be 1.5mm, can so make full use of the space between balance weight 19 and driving handle 17 so that
Balance weight 19 is sufficiently large, with as far as possible so that movable orbiting scroll 11 smoothly operates.The size in the gap can also be other numerical value, can be with
Set according to need of work.
Fig. 4 is refer to, Fig. 4 is the sectional view of the B-B direction shown in Fig. 3.As shown in figure 3,13 face balance weight 19 of main shaft
One end offers location hole (not shown).Screw compressor 100 further includes positioning pin 31, and positioning pin 31 is being arranged at balance weight 19 just
To the side of main shaft 13, positioning pin 31 is engaged with location hole.In this way, the cooperation by positioning pin 31 and location hole, on the one hand,
It can cause accurate positioning of the balance weight 19 relative to main shaft 13 so that the assembling between balance weight 19 and main shaft 13 is easy.Separately
On the one hand, can be to avoid swing of the balance weight 19 with respect to main shaft 13, it is ensured that 19 Equilibrium of balance weight, balance weight 19 could balance
The centrifugal force of movable orbiting scroll 11.Further, the quantity of positioning pin 31 is two.Balance weight 19 can preferably be avoided with respect to main shaft
13 swing so that the counterbalance effect of balance weight 19 itself is more preferable.
As shown in Figure 3 and Figure 4, further, locked between balance weight 19 and main shaft 13 by screw 33.In this way, screw
33 so that balance weight 19 is fixed on main shaft 13, can ensure dynamic whirlpool to avoid balance weight 19 in the axial float of main shaft 13
Disk 11 balances, and improves 100 operation stability of screw compressor, prolongs the service life.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the utility model, its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (9)
1. a kind of screw compressor, including main shaft and movable orbiting scroll, it is characterised in that the screw compressor further includes：Connecting shaft,
Driving handle and balance weight, the connecting shaft are arranged at the end of the main shaft, and the connecting shaft is located at the main shaft and described dynamic
Between the disk of whirlpool, the axis of the connecting shaft is parallel with the axis of the main shaft, and the axis of the connecting shaft and the main shaft
There is specific range between axis；The axial direction of the driving handle along the connecting shaft is sheathed on the connecting shaft away from the main shaft
One end, and the driving handle is connected respectively with the connecting shaft and the movable orbiting scroll；The balance weight is connected to the main shaft
End, and the balance weight and the connecting shaft are connected on the same end of the main shaft, the balance weight and the drive
Dynamic handle phase separation.
2. screw compressor according to claim 1, it is characterised in that be equipped between the balance weight and the driving handle
Gap.
3. screw compressor according to claim 1, it is characterised in that further include resigning pin, the resigning pin is arranged at
The main shaft is close to the end of the connecting shaft, and described pin of stepping down is towards the driving handle and the pin of stepping down is parallel to the master
The axis of axis；Relief hole is offered on the driving handle, the relief hole is engaged with the resigning pin.
4. screw compressor according to claim 3, it is characterised in that after the resigning pin stretches into the relief hole, institute
State resigning and sell between corresponding with relief hole surface that there are gap.
5. screw compressor according to claim 1, it is characterised in that one end of balance weight is opened described in the main shaft face
Equipped with location hole；The screw compressor further includes positioning pin, and the positioning pin is arranged at main shaft described in the balance weight face
Side, the positioning pin is engaged with the location hole.
6. screw compressor according to claim 1, it is characterised in that pass through spiral shell between the balance weight and the main shaft
Nail locking.
7. screw compressor according to claim 1, it is characterised in that the screw compressor further includes rotor and two
Clump weight, the rotor are sheathed on the main shaft；Two clump weights are respectively arranged at the both ends of the rotor, and two
Projection of the clump weight in the plane perpendicular to the main shaft is positioned at the both sides of the main shaft.
8. screw compressor according to any one of claims 1 to 7, it is characterised in that further include cylinder body, the main shaft,
The connecting shaft, the driving handle and the balance weight may be contained within the cylinder body, the inner wall of the cylinder body and the balance
Gap is equipped between block.
9. screw compressor according to claim 8, it is characterised in that the balance weight is located at the main shaft and is moved with described
Between the disk of whirlpool, and gap is equipped between the balance weight and the movable orbiting scroll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720836672.5U CN207297347U (en) | 2017-07-11 | 2017-07-11 | Screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720836672.5U CN207297347U (en) | 2017-07-11 | 2017-07-11 | Screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207297347U true CN207297347U (en) | 2018-05-01 |
Family
ID=62450547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720836672.5U Active CN207297347U (en) | 2017-07-11 | 2017-07-11 | Screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207297347U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269524A (en) * | 2017-07-11 | 2017-10-20 | 上海光裕汽车空调压缩机股份有限公司 | Screw compressor |
-
2017
- 2017-07-11 CN CN201720836672.5U patent/CN207297347U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269524A (en) * | 2017-07-11 | 2017-10-20 | 上海光裕汽车空调压缩机股份有限公司 | Screw compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200042 No. 220, new Dian Road, North Development Zone, Jiading District, Shanghai Patentee after: Shanghai Guangyu Automotive Air Conditioning Compressor Co., Ltd. Address before: 200042 No. 220, new Dian Road, North Development Zone, Jiading District, Shanghai Patentee before: SHANGHAI GUANGYU AUTOMOBILE AIR CONDITIONING COMPRESSOR CO., LTD. |