CN208221109U - A kind of Oldham's coupling and screw compressor - Google Patents
A kind of Oldham's coupling and screw compressor Download PDFInfo
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- CN208221109U CN208221109U CN201820258482.4U CN201820258482U CN208221109U CN 208221109 U CN208221109 U CN 208221109U CN 201820258482 U CN201820258482 U CN 201820258482U CN 208221109 U CN208221109 U CN 208221109U
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- oldham
- coupling
- thrust surface
- orbiter
- guide chute
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Abstract
A kind of Oldham's coupling is circular ring structure, and thrust surface is parallel to each other with lower thrust surface thereon；Upper and lower thrust surface is equipped with duplicate removal groove.A kind of screw compressor includes Oldham's coupling, fixed scroll, orbiter, bracket, bearing, crankshaft, middle casing；Fixed scroll is fixed on the bracket in middle casing；Orbiter is cooperated by cross slip-ring and fixed scroll, and orbiter and the cooperation of bracket thrust surface are slided；The bearing and orbiter that crankshaft is passed through in bracket cooperate, and the circular-rotation of crankshaft makes orbiter do planar circumferential movement by the effect of cross slip-ring.Oldham's coupling will not twist deformation, run-off the straight will not vibrate between orbiter thrust surface and fixed scroll thrust surface, increase the work area of guide chute.
Description
Technical field
The utility model belongs to scroll machine field, and particularly, the utility model relates to used in a kind of scroll machine
Oldham's coupling and screw compressor with the Oldham's coupling.
Background technique
Scroll machine can be made into scroll expander, screw compressor, vortex engine, vortex pump etc..Wherein scroll compression
Machine could also say that a kind of positive displacement compressor, this screw compressor become increasingly popular dynamic as refrigeration, empty tempered air
In the application such as power.
In general, screw compressor is mainly by orbiter, fixed scroll, Oldham's coupling, bracket, crankshaft, motor, sealing
Shell etc. is constituted.Swirling device in screw compressor includes two similar scrollworks of shape, each scrollwork is mounted on one
On individual end plate, to limit a scroll.Two scrolls cooperate together, wherein the relatively quiet vortex of orbiter
Disk is eccentric and rotates the opposed installation of 180 degree.Motor band dynamic crankshaft in screw compressor makes orbiter disk relative to quiet whirlpool
Capstan disk orbiting then forms a series of crescent-shaped spaces between orbiter and the scrollwork of fixed scroll.Dynamic
During scroll plate orbiting, the crescent-shaped space of outer most edge is constantly to crescent-shaped space while the movement of center
Volume is also reducing, so that the gas volume in the space be made to reduce pressure rise, is connected to until with central exhaust port, thus will
Compressor is discharged in compressed gas.
The anti-rotation mechanism of screw compressor be meet orbiter around fixed scroll center revolve while, with to prevent
Stop scroll plate rotation.It prevents orbiter from can take many forms with respect to the shaft coupling of fixed scroll rotation, but generally comprises
Two pairs of keys stretched out from annular element.A pair of keys cooperates in the slot of orbiter, slot of second pair of key cooperation in fixed scroll
It is interior.Although spinning motion of the orbiter relative to fixed scroll can be effectively prevented in the Oldham's coupling of this four keys of band,
But this Oldham's coupling will appear many problems during the work time.Due to the presence of this four keys, Oldham's coupling exists
The course of work will receive the effect of torsional moment, to make Oldham's coupling torsional deflection, in this way reduce the contact area of key
Accelerate the abrasion of key surface.As a result the noise and vibration for leading to screw compressor increase, the reduced service life of compressor.Together
When, just because of the presence of this four keys, Oldham's coupling is easy in the course of work in orbiter end plate and fixed scroll end
Impact several times between plate issue periodic tilt and vibration noise.This not only shortens the service life of compressor, and also constantly issuing has
Evil vibration and noise.
Utility model content
The purpose of this utility model is to provide the Oldham's couplings that one kind at least can partially solve above-mentioned technical problem
And screw compressor, Oldham's coupling will not twist deformation during the work time, while the Oldham's coupling is for being vortexed
It run-off the straight will not shake between orbiter thrust surface and fixed scroll thrust surface after in machinery, especially screw compressor
It is dynamic, while increasing considerably the work area of guide chute.
In order to achieve the above purpose, the utility model provides a kind of Oldham's coupling, to keep orbiter to exist
Planar circumferential movement is done under the drive of crankshaft in fixed scroll, which is circular ring structure, is stopped on Oldham's coupling
Pushing surface is parallel to each other with thrust surface under Oldham's coupling；Thrust surface is equipped with upper duplicate removal groove on Oldham's coupling；Ten couplet
Thrust surface is equipped with lower duplicate removal groove under joint.
The utility model Oldham's coupling, which solves, easily causes screw compressor fortune present in existing Oldham's coupling
Vibration, noise during row, and greatly reinforce the service life of Oldham's coupling.The setting of duplicate removal groove simultaneously, can be with
Mitigate the weight of Oldham's coupling, while can reduce the friction area of Oldham's coupling or more thrust surface.
Further, thrust surface is set there are four uniformly distributed upper duplicate removal groove on the Oldham's coupling；The cross shaft coupling
Saving thrust surface to set, there are four uniformly distributed lower duplicate removal grooves.
Further, on the Oldham's coupling thrust surface be equipped with first on guide chute and with first on guide chute exist
Guide chute on collinear second, at the same under Oldham's coupling thrust surface be equipped with the first lower guide chute and with first under lead
To sliding slot under collinear second guide chute, the straight line on described first on guide chute and second where guide chute
It is vertical with the straight line where the first lower guide chute and the second lower guide chute.
Further, four duplicate removal grooves are respectively positioned on the middle position of four guide chutes.
Further, on first on guide chute and second guide chute respectively with the first guide post of fixed scroll and quiet whirlpool
The fitting sliding of the second guide post of capstan；First lower guide chute and the second lower guide chute respectively with the first guide post of orbiter
It is bonded and slides with the second guide post of orbiter.
Further, thrust surface with fixed scroll thrust surface is bonded sliding on Oldham's coupling；Thrust under Oldham's coupling
Face is bonded sliding with bracket thrust surface
The utility model also provides a kind of screw compressor, including above-mentioned Oldham's coupling, fixed scroll, orbiter,
Bracket, bearing, crankshaft, middle casing；Fixed scroll is fixed on the bracket in middle casing；Orbiter by Oldham's coupling with
Fixed scroll cooperation, and orbiter and the cooperation of bracket thrust surface are slided；The bearing and move that crankshaft is passed through in bracket
Scroll plate cooperation, the circular-rotation of crankshaft make orbiter do planar circumferential movement by the effect of Oldham's coupling.
Detailed description of the invention
By the following detailed description and appended claims and attached drawing, it will be apparent to those skilled in the art that this
The other features and purpose of utility model will become clearer.
Fig. 1 is the isometric view of the first orientation of the utility model Oldham's coupling；
Fig. 2 is the isometric view of the second orientation of the utility model Oldham's coupling；
Fig. 3 is the schematic top plan view of the utility model Oldham's coupling；
Fig. 4 is the schematic front view of the utility model Oldham's coupling；
Fig. 5 is the isometric view of the utility model fixed scroll；
Fig. 6 is the schematic front view of the utility model fixed scroll；
Fig. 7 is the isometric view of the utility model orbiter；
Fig. 8 is the isometric view of the utility model orbiter；
Fig. 9 is the schematic front view of the utility model orbiter；
Figure 10 is that there is the utility model the screw compressor of Oldham's coupling, orbiter and fixed scroll to assemble section view
Schematic diagram.
The reference numerals are as follows:
| Oldham's coupling | 1 | The second guide post of orbiter | 14 | |
| Guide chute on first | 2 | Bolt | 16 | |
| Guide chute on second | 3 | Bracket | 17 | |
| First lower guide chute | 4 | Bearing | 18 | |
| Second lower guide chute | 5 | Crankshaft | 19 | |
| Thrust surface under Oldham's coupling | 6 | Rotor | 20 | |
| Thrust surface on Oldham's coupling | 7 | Motor stator | 21 | |
| Fixed scroll | 8 | Middle casing | 22 | |
| The first guide post of fixed scroll | 9 | Oil separating plate | 23 | |
| The second guide post of fixed scroll | 10 | Lower casing | 24 | |
| Fixed scroll thrust surface | 11 | Bracket thrust surface | 25 | |
| Orbiter | 12 | Upper duplicate removal groove | 26 | |
| The first guide post of orbiter | 13 | |||
| Lower duplicate removal groove | 27 |
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
Referring to shown in Fig. 1-10, although the structure of the utility model can be applied to many different types of scroll machines
In, but for explanation of demonstrating, as described herein is scroll air compressor.
It is assembled as shown in Figure 10 for the screw compressor of the utility model Oldham's coupling and orbiter and fixed scroll
Body schematic cross-sectional view, it includes Oldham's coupling, and is indicated with label 1.The screw compressor includes Oldham's coupling 1, quiet
Scroll plate 8, orbiter 12, bolt 16, bracket 17, bearing 18, crankshaft 19, rotor 20, motor stator 21, middle casing
22, oil separating plate 23, lower casing 24.Fixed scroll 8 passes through on the bracket 17 in the fixed shell 22 within the compressor of bolt 16.Dynamic whirlpool
Capstan 12 is cooperated by Oldham's coupling 1 and fixed scroll 8, and orbiter 12 and the cooperation of bracket thrust surface 25 are slided.Whirlpool
The bearing 18 and orbiter 12 that rotation compressor crank shaft 19 is passed through in bracket 17 cooperate, the circular-rotation of such crankshaft 19
Orbiter 12 is set to do planar circumferential movement by the effect of Oldham's coupling 1.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the utility model Oldham's coupling 1 is a flat surface circular ring structure, cross shaft coupling
Thrust surface 6 under thrust surface 7 and Oldham's coupling on 1 setting Oldham's coupling of section, and thrust surface 7 and ten couplets on Oldham's coupling
Thrust surface 6 is parallel to each other under joint.
Thrust surface 7 is equipped with upper duplicate removal groove 26 on Oldham's coupling；Thrust surface 6 also is provided with down under the Oldham's coupling
Weight groove 27.Duplicate removal groove can mitigate the weight of Oldham's coupling, while can reduce rubbing for Oldham's coupling or more thrust surface
Wipe area.
In some embodiments, thrust surface 7 is set there are four uniformly distributed upper duplicate removal groove 26 on the Oldham's coupling；It is described
Thrust surface 6 is set there are four uniformly distributed lower duplicate removal groove 27 under Oldham's coupling.Upper and lower thrust surface is respectively provided with duplicate removal groove, can be into one
Step mitigates weight, reduces friction area.
On the Oldham's coupling thrust surface 7 be equipped on first guide chute 2 and with first on guide chute 2 with always
Guide chute 3 on the second of line, at the same under Oldham's coupling thrust surface 6 be equipped with the first lower guide chute 4 and with the first lower guiding
The guide chute 5 under collinear second of sliding slot 4.It is straight where guide chute 3 on guide chute 2 and second on described first
Line is vertical with the straight line where the first lower guide chute 4 and the second lower guide chute 5.
In some embodiments, four duplicate removal grooves are respectively positioned on the middle position of four guide chutes.Duplicate removal groove opens up
Position is suitable for the smoothness for being able to maintain entire Oldham's coupling and uniformly distributed effect.
As shown in Figure 5, Figure 6, it is oriented to and slides on guide chute 2 and second on the first of the Oldham's coupling 1 of the utility model
Slot 3 is bonded sliding with the first guide post of fixed scroll 9 and the second guide post of fixed scroll 10 respectively.
As shown in Fig. 7, Fig. 8, Fig. 9, the first lower guide chute 4 and the second lower guide chute 5 respectively with orbiter first
Guide post 13 and the fitting sliding of the second guide post of orbiter 14.
As shown in Figure 10, thrust surface 7 with fixed scroll thrust surface 11 is bonded sliding on Oldham's coupling；Under Oldham's coupling
Thrust surface 6 is bonded sliding with bracket thrust surface 25.1 structure of Oldham's coupling as previously described can make orbiter 12 in crankshaft 19
Planar circumferential movement is done under driving.
The Oldham's coupling 1 of the utility model is a flat surface circular ring structure, due to thrust surface 7 and cross on Oldham's coupling
Thrust surface 6 is bonded sliding with fixed scroll thrust surface 11 and bracket thrust surface 25 respectively under shaft coupling.Due on Oldham's coupling
Thrust surface 6 is parallel to each other under thrust surface 7 and Oldham's coupling, therefore fixed scroll thrust surface 11 and bracket thrust surface 25 are also mutual
Parallel surface.Therefore, it in the screw compressor course of work, when in the scrollwork of orbiter 12 by non-uniform gas force, moves
Scroll plate 12 will not tilt, and thus eliminating the need Oldham's couplings 1 to be made during the work time due to the inclination of orbiter 12
Plane reciprocating collision of the Oldham's coupling 1 between orbiter 12, fixed scroll 8 and bracket thrust surface 25.
The advantages of the utility model, issues due to colliding up and down during the work time first is that completely eliminating Oldham's coupling
Noise；Second is that improve the working condition of Oldham's coupling 1, i.e., Oldham's coupling 1 the course of work will not due to inclination and
Make to slide working surface increased wear.
Therefore, the utility model, which solves, easily causes screw compressor operational process present in existing Oldham's coupling
Middle vibration, noise and service life short problem.
Although attached drawing describes the embodiments of the present invention, for a person skilled in the art, do not surpassing
The utility model can be repaired under the premise of the protection scope of appended claims and the principles of the present invention out
Change, change and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of Oldham's coupling, which is characterized in that Oldham's coupling is circular ring structure, on Oldham's coupling thrust surface (7) with
Thrust surface (6) is parallel to each other under Oldham's coupling；Thrust surface (7) is equipped with upper duplicate removal groove (26) on Oldham's coupling；Described ten
Thrust surface (6) is equipped with lower duplicate removal groove (27) under couplet joint.
2. a kind of Oldham's coupling as described in claim 1, which is characterized in that thrust surface (7) is equipped on the Oldham's coupling
Four uniformly distributed upper duplicate removal grooves (26)；Thrust surface (6) is set there are four uniformly distributed lower duplicate removal groove under the Oldham's coupling
(27)。
3. a kind of Oldham's coupling as claimed in claim 1 or 2, which is characterized in that thrust surface (7) is set on the Oldham's coupling
Have guide chute on first (2) and with first on guide chute (2) guide chute (3) on collinear second, while ten
Thrust surface (6) is equipped with first lower guide chute (4) and with first lower guide chute (4) collinear second under couplet joint
Lower guide chute (5), the lower guiding of straight line and first on described first on guide chute (2) and second where guide chute (3)
Straight line where sliding slot (4) and second lower guide chute (5) is vertical.
4. a kind of Oldham's coupling as claimed in claim 3, which is characterized in that four duplicate removal grooves are respectively positioned on four guide chutes
Middle position.
5. a kind of Oldham's coupling as claimed in claim 3, which is characterized in that be oriented on guide chute (2) and second on first
Sliding slot (3) is bonded sliding with the first guide post of fixed scroll (9) and the second guide post of fixed scroll (10) respectively；First lower guiding
Sliding slot (4) and second lower guide chute (5) respectively with the second guide post of the first guide post of orbiter (13) and orbiter
(14) fitting sliding.
6. a kind of Oldham's coupling as described in claim 1, which is characterized in that thrust surface (7) and quiet vortex on Oldham's coupling
Disk thrust surface (11) fitting sliding；Thrust surface (6) is bonded sliding with bracket thrust surface (25) under Oldham's coupling.
7. a kind of screw compressor, it is characterised in that: Oldham's coupling (1) including any one of such as claim 1-6, quiet
Scroll plate (8), orbiter (12), bracket (17), bearing (18), crankshaft (19), middle casing (22)；Fixed scroll (8) is fixed
On the bracket (17) in middle casing (22)；Orbiter (12) is cooperated by Oldham's coupling (1) and fixed scroll (8), and
And orbiter (12) and bracket thrust surface (25) cooperation are slided；Crankshaft (19) is passed through the bearing (18) in bracket (17)
Cooperate with orbiter (12), the circular-rotation of crankshaft (19) does orbiter (12) by the effect of Oldham's coupling (1)
Planar circumferential movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820258482.4U CN208221109U (en) | 2018-02-14 | 2018-02-14 | A kind of Oldham's coupling and screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820258482.4U CN208221109U (en) | 2018-02-14 | 2018-02-14 | A kind of Oldham's coupling and screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208221109U true CN208221109U (en) | 2018-12-11 |
Family
ID=64530413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820258482.4U Active CN208221109U (en) | 2018-02-14 | 2018-02-14 | A kind of Oldham's coupling and screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208221109U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286520A (en) * | 2018-02-14 | 2018-07-17 | 宁波鲍斯能源装备股份有限公司 | A kind of Oldham's coupling and screw compressor |
| CN111946615A (en) * | 2020-09-10 | 2020-11-17 | 浙江大明制冷科技有限公司 | Scroll compressor with anti-rotation device and manufacturing method thereof |
-
2018
- 2018-02-14 CN CN201820258482.4U patent/CN208221109U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286520A (en) * | 2018-02-14 | 2018-07-17 | 宁波鲍斯能源装备股份有限公司 | A kind of Oldham's coupling and screw compressor |
| CN111946615A (en) * | 2020-09-10 | 2020-11-17 | 浙江大明制冷科技有限公司 | Scroll compressor with anti-rotation device and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 315500 No.18 Shangqiao Road, Xiwu street, Fenghua District, Ningbo City, Zhejiang Province Patentee after: NINGBO BAOSI ENERGY EQUIPMENT Co.,Ltd. Address before: No. 55, Jiangkou street, Fenghua District, Ningbo, Zhejiang Province Patentee before: NINGBO BAOSI ENERGY EQUIPMENT Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |