Steel ring assembly and compressor

Abstract

This invention provides a steel ring assembly and a compressor. The steel ring assembly is mounted on the moving plate of the compressor's moving plate module. The steel ring assembly includes: a steel ring, the moving plate having a steel ring hole and an opening communicating with the steel ring hole, the opening facing the compressor's support module, and the steel ring being installed in the steel ring hole; two ball bearing components, the first ball bearing component being located on the side of the steel ring away from the bottom surface of the hole, and the second ball bearing component being located on the side of the steel ring closer to the bottom surface of the hole; and an elastic element, a limiting hole being provided on the bottom surface of the steel ring hole, the elastic element being located on the side of the second ball bearing component away from the steel ring, and at least a portion of the elastic element being installed in the limiting hole. This invention addresses the problem in the prior art that it is impossible to reduce abnormal axial movement of the steel ring without causing wear between the steel ring and the support assembly.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and more specifically, to a steel ring assembly and a compressor. Background Technology

[0002] When installing the steel ring on the compressor's moving plate, a gap L is introduced in the axial direction to allow the steel ring a certain degree of freedom in the axial direction. When the compressor is running, the steel ring is prone to axial movement, which causes repeated impacts between the steel ring and the support assembly. This axial movement can cause mechanical impact noise during compressor operation, or even affect the stable operation of the moving plate.

[0003] Currently, the common practice in the industry is to increase the height of the steel ring and minimize the axial clearance L. However, reducing the clearance L can easily cause wear between the steel ring and the support assembly. How to reduce abnormal axial movement of the steel ring without causing wear between the steel ring and the support assembly is a major technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] The main objective of this invention is to provide a steel ring assembly and compressor to solve the problem in the prior art that the abnormal axial movement of the steel ring cannot be reduced without causing wear between the steel ring and the support assembly.

[0005] To achieve the above objectives, according to one aspect of the present invention, a steel ring assembly is provided, which is mounted on a moving plate of a compressor's moving plate module. The steel ring assembly includes: a steel ring, on which the moving plate is provided with a steel ring hole and an opening communicating with the steel ring hole, the opening being disposed towards a support module of the compressor, and the steel ring being mounted in the steel ring hole; two ball bearing components, a first ball bearing component being disposed on the side of the steel ring away from the bottom surface of the hole, and a second ball bearing component being disposed on the side of the steel ring close to the bottom surface of the hole; and an elastic member, a limiting hole being provided on the bottom surface of the steel ring hole, the elastic member being located on the side of the second ball bearing component away from the steel ring, and at least a portion of the elastic member being mounted in the limiting hole.

[0006] Furthermore, each ball component includes a ball cage and a plurality of balls rotatably mounted on the ball cage.

[0007] Furthermore, the ball cage includes an intermediate annular frame, on which multiple ball fixing parts are provided, with each ball corresponding to a corresponding ball, and each ball is installed in its respective ball fixing part.

[0008] Furthermore, the ball fixing part is a spherical groove part, and the diameter of the spherical groove is larger than the outer diameter of the ball.

[0009] Furthermore, the ball cage includes two sets of cage extensions respectively disposed on opposite sides of the central annular frame, and each set of cage extensions is provided with a plurality of ball limiting parts that are connected to a plurality of ball fixing parts in a one-to-one correspondence.

[0010] Furthermore, each cage extension includes multiple cylindrical protrusions, which are spaced apart on the central annular frame, and multiple ball bearing limiting parts are correspondingly provided on the multiple cylindrical protrusions.

[0011] Furthermore, the ball retaining part is a cylindrical groove, the diameter of which is smaller than the outer diameter of the ball.

[0012] Furthermore, there are multiple elastic elements and multiple limiting holes in the steel ring hole. The multiple limiting holes are arranged at intervals around the center line of the steel ring hole, and the multiple elastic elements are arranged one-to-one in the multiple limiting holes.

[0013] Furthermore, the elastic element is a compression spring.

[0014] According to another aspect of the present invention, a compressor is provided, comprising: a housing module; a crankshaft module disposed within the housing module, the crankshaft module including a crankshaft rotatably disposed therein; a moving disc module and a support module, the moving disc module and the support module being located within the housing module, both the moving disc module and the support module being sleeved on the crankshaft and arranged sequentially along the crankshaft, the support module being fixedly connected to the housing module, the crankshaft being drivenly connected to the moving disc module, the moving disc module including a moving disc disposed toward the support module; and the aforementioned steel ring assembly, the steel ring assembly being mounted on the moving disc and sleeved on a steel pin of the support module.

[0015] Applying the technical solution of this invention, the steel ring assembly of this invention is installed on the moving plate of the moving plate module of the compressor. The steel ring assembly includes: a steel ring, the moving plate having a steel ring hole and an opening communicating with the steel ring hole, the opening being positioned towards the support module of the compressor, and the steel ring being installed in the steel ring hole; two ball bearing components, the first ball bearing component being positioned on the side of the steel ring away from the bottom surface of the hole, and the second ball bearing component being positioned on the side of the steel ring close to the bottom surface of the hole; and an elastic element, a limiting hole being provided on the bottom surface of the steel ring hole, the elastic element being located on the side of the second ball bearing component away from the steel ring, and at least a portion of the elastic element being installed in the limiting hole. In this way, after the moving plate module is installed, it can form a certain pre-compression on the elastic element. Under the action of the elastic force of the elastic element, the two ball components will always keep in contact with the steel ring to minimize the axial movement of the steel ring. When the compressor is running, the moving plate module will rotate around the rotation center of the crankshaft module under the restriction of the steel pin on the bracket module. At the same time, the steel ring on the moving plate will periodically contact and be subjected to force with the steel pin. The steel ring has a certain tendency to move axially, but the movement of the steel ring will be restricted to a small range under the action of the elastic force of the elastic element, avoiding the impact between the steel ring and the moving plate and the bracket, reducing the operating noise of the compressor, reducing the mechanical noise and abnormal wear caused by the movement of the steel ring during the operation of the compressor, improving the stability and reliability of the compressor operation, and minimizing the axial running clearance of the steel ring without increasing the operating power of the compressor. This solves the problem in the prior art that it is impossible to reduce the abnormal axial movement of the steel ring without causing wear between the steel ring and the bracket assembly. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A schematic diagram of an embodiment of a compressor according to the present invention is shown;

[0018] Figure 2 It shows Figure 1 The cross-sectional view of the compressor's moving disc and steel ring assembly is shown.

[0019] Figure 3 It shows Figure 1 The top view of the compressor's moving plate and steel ring assembly shown;

[0020] Figure 4 It shows Figure 2 The sectional view shown is a partial enlarged view at point A;

[0021] Figure 5 It shows Figure 3The top view shown is a partial enlarged view at point B;

[0022] Figure 6 It shows Figure 3 A top view of the ball bearing component of the steel ring assembly shown;

[0023] Figure 7 It shows Figure 6 A cross-sectional view of the ball bearing component shown;

[0024] Figure 8 It shows Figure 7 The sectional view shown is a partial enlarged view at point C.

[0025] The above figures include the following reference numerals:

[0026] 2. End cap module; 3. Stationary disc module; 4. Moving disc module; 5. Bracket module; 51. Steel pin; 52. Bracket; 6. Housing module; 7. Crankshaft module; 8. Stator module;

[0027] 41. Steel rim;

[0028] 42. Ball component; 421. Ball cage; 4210. Intermediate annular frame; 4211. Ball retaining part; 4212. Cage extension; 4213. Ball limiting part; 4214. Cylindrical protrusion; 422. Ball;

[0029] 43. Elastic element; 44. Moving disc; 441. Limiting hole; 442. Steel ring hole. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] like Figures 1 to 8 As shown, the present invention provides a steel ring assembly, which is installed on the moving plate 44 of the moving plate module 4 of the compressor. The steel ring assembly includes: a steel ring 41, the moving plate 44 having a steel ring hole 442 and an opening communicating with the steel ring hole 442, the opening facing the support module 5 of the compressor, the steel ring 41 being installed in the steel ring hole 442; two ball bearing components 42, the first ball bearing component 42 being disposed on the side of the steel ring 41 away from the bottom surface of the hole 442, the second ball bearing component 42 being disposed on the side of the steel ring 41 close to the bottom surface of the hole 442; and an elastic member 43, a limiting hole 441 being provided on the bottom surface of the hole 442, the elastic member 43 being located on the side of the second ball bearing component 42 away from the steel ring 41, at least a portion of the elastic member 43 being installed in the limiting hole 441.

[0032] In this way, after the moving plate module 4 is installed, it can form a certain pre-compression on the elastic element 43. Under the action of the elastic force of the elastic element 43, the two ball components 42 will always keep in contact with the steel ring 41 to minimize the axial movement of the steel ring 41. When the compressor is running, the moving plate module 4 will rotate around the rotation center of the crankshaft module 7 under the restriction of the steel pin 51 on the bracket module 5. At the same time, the steel ring 41 on the moving plate 44 will periodically be in contact with the steel pin 51 and be subjected to force. The steel ring 41 has a certain tendency to move axially in the axial direction, but the movement of the steel ring 41 will be limited to a small range under the action of the elastic force of the elastic element 43, avoiding the collision between the steel ring 41 and the moving plate 44 and the bracket 52, reducing the operating noise of the compressor, reducing the mechanical noise and abnormal wear caused by the movement of the steel ring during the operation of the compressor, improving the stability and reliability of the compressor operation, and minimizing the axial running clearance of the steel ring without increasing the operating power consumption of the compressor. This solves the problem in the prior art that it is impossible to reduce the abnormal axial movement of the steel ring without causing wear between the steel ring and the bracket assembly.

[0033] like Figures 6 to 8 As shown, each ball component 42 includes a ball retainer 421 and a plurality of balls 422 rotatably disposed on the ball retainer 421.

[0034] The number of ball bearings 422 is no less than 3, and the optimal number is 3 to 15.

[0035] like Figure 8 As shown, the ball retainer 421 includes a central annular frame 4210, on which a plurality of ball fixing parts 4211 are provided. The plurality of ball fixing parts 4211 are provided in a one-to-one correspondence with a plurality of balls 422, and each ball 422 is installed in the corresponding ball fixing part 4211.

[0036] The ball fixing part 4211 is a spherical groove, the diameter of which is larger than the outer diameter of the ball 422, so that the ball 422 can be rotatably installed in the ball fixing part 4211.

[0037] like Figure 8 As shown, the ball retainer 421 includes two sets of retainer extensions 4212 respectively disposed on opposite sides of the intermediate annular frame 4210. Each set of retainer extensions 4212 is provided with a plurality of ball limiting parts 4213 that are connected to a plurality of ball fixing parts 4211 in a one-to-one correspondence.

[0038] Specifically, each cage extension 4212 includes multiple cylindrical protrusions 4214, which are spaced apart on the intermediate annular frame 4210, and multiple ball bearing limiting parts 4213 are correspondingly provided on the multiple cylindrical protrusions 4214.

[0039] Among them, the ball limiting part 4213 is a cylindrical groove, and the diameter of the cylindrical groove is smaller than the outer diameter of the ball 422.

[0040] In this way, the diameter of the cylindrical groove is slightly smaller than the outer diameter of the ball 422, which ensures that the ball 422 can roll freely in the ball cage 421, while also providing a certain axial constraint on the ball 422 so that it does not detach from the ball cage 421.

[0041] The present invention has multiple elastic elements 43, multiple limiting holes 441 in the steel ring hole 442, multiple limiting holes 441 are arranged at intervals around the center line of the steel ring hole 442, and multiple elastic elements 43 are arranged one-to-one in the multiple limiting holes 441.

[0042] The number of limiting holes 441 is no less than 3, and the optimal number is 3 to 10.

[0043] Specifically, the elastic element 43 is a compression spring.

[0044] The present invention also provides a compressor, comprising: a housing module 6; a crankshaft module 7 disposed within the housing module 6, the crankshaft module 7 including a crankshaft rotatably disposed therein; a moving plate module 4 and a support module 5, the moving plate module 4 and the support module 5 being located within the housing module 6, the moving plate module 4 and the support module 5 being sleeved on the crankshaft and arranged sequentially along the crankshaft, the support module 5 being fixedly connected to the housing module 6, the crankshaft being drivenly connected to the moving plate module 4, the moving plate module 4 including a moving plate 44 disposed towards the support module 5; and the aforementioned steel ring assembly, the steel ring assembly being mounted on the moving plate 44 and sleeved on the steel pin 51 of the support module 5.

[0045] Specifically, the compressor includes an end cover module 2 installed at one end of the housing module 6 and a stationary disk module 3 located on the side of the crankshaft module 7 near the end cover module 2. The stationary disk module 3 is spaced apart from the crankshaft module 7 to remain stationary. The compressor also includes a stator module 8 installed on the crankshaft module 7 and fixedly connected to the housing module 6. A moving disk module 4 and a support module 5 are located between the stationary disk module 3 and the stator module 8. The support module 5 includes a support 52 and a steel pin 51 installed on the support 52. A portion of the steel pin 51 is located on the side of the support 52 near the moving disk module 4.

[0046] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0047] The steel ring assembly of the present invention is installed on the moving plate 44 of the moving plate module 4 of the compressor. The steel ring assembly includes: a steel ring 41, the moving plate 44 having a steel ring hole 442 and an opening communicating with the steel ring hole 442, the opening facing the support module 5 of the compressor, and the steel ring 41 being installed in the steel ring hole 442; two ball bearing components 42, the first ball bearing component 42 being disposed on the side of the steel ring 41 away from the bottom surface of the hole 442, and the second ball bearing component 42 being disposed on the side of the steel ring 41 close to the bottom surface of the hole 442; and an elastic member 43, a limiting hole 441 being provided on the bottom surface of the hole 442, the elastic member 43 being located on the side of the second ball bearing component 42 away from the steel ring 41, and at least a portion of the elastic member 43 being installed in the limiting hole 441. In this way, after the moving plate module 4 is installed, it can form a certain pre-compression on the elastic element 43. Under the action of the elastic force of the elastic element 43, the two ball components 42 will always keep in contact with the steel ring 41 to minimize the axial movement of the steel ring 41. When the compressor is running, the moving plate module 4 will rotate around the rotation center of the crankshaft module 7 under the restriction of the steel pin 51 on the bracket module 5. At the same time, the steel ring 41 on the moving plate 44 will periodically be in contact with the steel pin 51 and be subjected to force. The steel ring 41 has a certain tendency to move axially in the axial direction, but the movement of the steel ring 41 will be limited to a small range under the action of the elastic force of the elastic element 43, avoiding the collision between the steel ring 41 and the moving plate 44 and the bracket 52, reducing the operating noise of the compressor, reducing the mechanical noise and abnormal wear caused by the movement of the steel ring during the operation of the compressor, improving the stability and reliability of the compressor operation, and minimizing the axial running clearance of the steel ring without increasing the operating power consumption of the compressor. This solves the problem in the prior art that it is impossible to reduce the abnormal axial movement of the steel ring without causing wear between the steel ring and the bracket assembly.

[0048] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0049] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0050] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0051] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0052] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A steel ring assembly, characterized in that, The steel ring assembly is mounted on the moving plate (44) of the moving plate module (4) of the compressor, and the steel ring assembly includes: The moving plate (44) is provided with a steel ring (442) and an opening communicating with the steel ring (442). The opening is provided facing the support module (5) of the compressor. The steel ring (41) is installed in the steel ring (442). Two ball bearing components (42), the first ball bearing component (42) is disposed on the side of the steel ring (41) away from the bottom surface of the hole (442), and the second ball bearing component (42) is disposed on the side of the steel ring (41) close to the bottom surface of the hole (442). The elastic element (43) has a limiting hole (441) on the bottom surface of the hole of the steel ring (442). The elastic element (43) is located on the side of the second ball component (42) away from the steel ring (41). At least a portion of the elastic element (43) is installed in the limiting hole (441).

2. The steel ring assembly according to claim 1, characterized in that, Each of the ball components (42) includes a ball retainer (421) and a plurality of balls (422) rotatably disposed on the ball retainer (421).

3. The steel ring assembly according to claim 2, characterized in that, The ball retainer (421) includes an intermediate annular frame (4210), on which a plurality of ball fixing parts (4211) are provided. The plurality of ball fixing parts (4211) are provided in a one-to-one correspondence with the plurality of balls (422), and each ball (422) is installed in the corresponding ball fixing part (4211).

4. The steel ring assembly according to claim 3, characterized in that, The ball fixing part (4211) is a spherical groove, and the diameter of the spherical groove is larger than the outer diameter of the ball (422).

5. The steel ring assembly according to claim 3, characterized in that, The ball retainer (421) includes two sets of retainer extensions (4212) respectively disposed on opposite sides of the intermediate annular frame (4210), and each set of retainer extensions (4212) is provided with a plurality of ball limiting parts (4213) that are connected to the plurality of ball fixing parts (4211) in a one-to-one correspondence.

6. The steel ring assembly according to claim 5, characterized in that, Each cage extension (4212) includes multiple cylindrical protrusions (4214), which are spaced apart on the intermediate annular frame (4210), and multiple ball bearing limiting parts (4213) are correspondingly provided on the multiple cylindrical protrusions (4214).

7. The steel ring assembly according to claim 5, characterized in that, The ball limiting part (4213) is a cylindrical groove, and the diameter of the cylindrical groove is smaller than the outer diameter of the ball (422).

8. The steel ring assembly according to claim 1, characterized in that, The number of elastic elements (43) is multiple, the number of limiting holes (441) in the steel ring hole (442) is multiple, the multiple limiting holes (441) are arranged at intervals around the center line of the steel ring hole (442), and the multiple elastic elements (43) are arranged one-to-one in the multiple limiting holes (441).

9. The steel ring assembly according to claim 1 or 8, characterized in that, The elastic element (43) is a compression spring.

10. A compressor, characterized in that, include: Shell module (6); A crankshaft module (7) is disposed within the housing module (6), and the crankshaft module (7) includes a crankshaft that is rotatably disposed therein; The moving disk module (4) and the support module (5) are located inside the housing module (6). The moving disk module (4) and the support module (5) are both sleeved on the crankshaft and arranged sequentially along the crankshaft. The support module (5) is fixedly connected to the housing module (6). The crankshaft is drivenly connected to the moving disk module (4). The moving disk module (4) includes a moving disk (44) facing the support module (5). The steel ring assembly according to any one of claims 1 to 9, wherein the steel ring assembly is mounted on the moving plate (44) and sleeved on the steel pin (51) of the bracket module (5).

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