A bearing for a pump body structure, a pump body structure and a compressor

Abstract

This utility model relates to a bearing for a pump body structure, a pump body structure, and a compressor. The bearing for the pump body structure includes a bearing body, with a hub extending axially from the middle of one end of the bearing body. The bearing body has a bearing channel that runs through the bearing body and the hub along the axial direction of the bearing body. A plurality of tapered oil guide holes communicating with the bearing channel are formed through the side wall of the hub. The larger diameter end of the tapered oil guide hole is located on the outer side wall of the hub, and the smaller diameter end is located on the inner side wall of the hub. The tapered oil guide holes are inclined on the hub, and the angle β formed between the centerline of the tapered oil guide hole and the axis of the bearing channel satisfies the relationship: 25°≤β≤35°. The bearing for the pump body structure of this utility model can effectively improve lubrication efficiency, reduce friction loss, and lower bearing temperature, thereby improving the service life of the bearing and the operational reliability of the compressor.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to a bearing, pump body structure and compressor for a pump body structure. Background Technology

[0002] The compressor is a crucial component of an air conditioner, and its operating efficiency and reliability are key factors to consider during manufacturing. During compressor operation, the crankshaft of the pump body rotates relative to the bearings. To ensure compressor reliability, lubricating oil is typically added between the crankshaft and bearings. However, under harsh conditions such as high temperature and high pressure, traditional lubrication methods can easily lead to insufficient lubrication, high frictional heat, and low heat dissipation efficiency between the crankshaft and bearings. This can result in oil film rupture, high frictional losses, and reduced compressor reliability and lifespan. Utility Model Content

[0003] Based on this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a bearing, pump body structure and compressor for pump body structure, which can effectively improve lubrication efficiency, reduce friction loss, reduce bearing temperature, and thus improve the service life of the bearing and the operational reliability of the compressor.

[0004] To achieve the above objectives, the first aspect of this utility model provides a bearing for a pump body structure, comprising a bearing body, a hub extending axially from the middle of one end of the bearing body, the bearing body having a bearing channel that penetrates the bearing body and the hub along the axial direction of the bearing body; a plurality of tapered oil guide holes communicating with the bearing channel are provided through the side wall of the hub, the larger diameter end of the tapered oil guide hole is disposed on the outer side wall of the hub, and the smaller diameter end is disposed on the inner side wall of the hub; the tapered oil guide holes are inclinedly disposed on the hub, and the angle formed between the center line of the tapered oil guide hole and the axis of the bearing channel is β, satisfying the relationship: 25°≤β≤35°.

[0005] Therefore, the bearing for the pump body structure according to this utility model, by obliquely providing several tapered oil guide holes that connect to the bearing channel on the hub of the bearing body, and by placing the larger diameter end of the tapered oil guide hole on the outer wall of the hub, can avoid the problem of insufficient oil film on the inner side due to excessively thick oil film on the outer side of the tapered oil guide hole. Centrifugal force is used to drive the lubricating oil to flow adaptively, allowing more lubricating oil to enter the bearing channel from the outer side of the tapered oil guide holes to lubricate the crankshaft and the bearing channel. This effectively reduces the dynamic friction area between the crankshaft and the bearing, improves the lubrication efficiency between the crankshaft and the bearing, and lowers the bearing temperature, thereby reducing bearing friction loss, improving bearing service life, and enhancing the operational reliability of the compressor.

[0006] In one embodiment, the included angle β formed between the centerline of the tapered oil guide hole and the axis of the bearing channel is equal to 30°.

[0007] In one embodiment, a threaded groove is provided on the inner wall of the tapered oil guide hole, and the two ends of the threaded groove respectively penetrate the two ends of the tapered oil guide hole.

[0008] In one embodiment, the maximum diameter of the tapered oil guide hole is d, which satisfies the relationship: 0.8mm≤d≤1.5mm.

[0009] In one embodiment, several of the tapered oil guide holes are spirally distributed on the hub portion.

[0010] In one embodiment, the line connecting the plurality of the tapered oil guide holes on the outer side wall of the hub is a helix, and the helix angle of the helix is ​​25°.

[0011] In one implementation, the number of tapered oil guide holes is 3-8.

[0012] In one embodiment, an annular groove is formed at the end of the bearing body away from the hub, and the annular groove is spaced around the bearing channel.

[0013] A second aspect of this utility model provides a pump body structure, which includes the bearing described in any of the preceding embodiments for use in a pump body structure. The pump body structure according to the embodiments of this utility model can effectively improve lubrication efficiency, reduce frictional loss, and lower bearing temperature, thereby improving the service life of the bearing and the operational reliability of the compressor.

[0014] A third aspect of this utility model provides a compressor comprising the pump body structure described in any of the preceding embodiments. The compressor according to the embodiments of this utility model can effectively improve lubrication efficiency, reduce frictional loss, and lower bearing temperature, thereby improving bearing service life and compressor operational reliability.

[0015] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is one of the structural schematic diagrams of the bearing used in the pump body structure according to an embodiment of the present utility model; Figure 2 This is a second schematic diagram of the bearing used in the pump body structure according to an embodiment of the present utility model; Figure 3 This is the third schematic diagram of the bearing used in the pump body structure according to an embodiment of the present utility model; Figure 4 This is the fourth structural schematic diagram of the bearing used in the pump body structure according to an embodiment of the present utility model; Figure 5 This is the fifth schematic diagram of the bearing used in the pump body structure according to an embodiment of the present utility model; Figure 6 This is the sixth structural schematic diagram of the bearing used in the pump body structure according to an embodiment of the present utility model; Figure 7 This is one of the structural schematic diagrams of the pump body structure according to an embodiment of the present utility model; Figure 8 This is the second schematic diagram of the pump body structure according to an embodiment of the present utility model.

[0017] Explanation of reference numerals in the attached figures: 10. Bearing body; 11. Bearing channel; 12. Annular groove; 20. Hub; 30. Tapered oil guide hole; 40. Cylinder assembly; 50. Crankshaft; 60. Secondary bearing. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0020] In the following description, when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. In the description of this application, it should be understood that the terms "first," "second," "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0021] In related technologies, the compressor is a crucial component of an air conditioner, and its operating efficiency and reliability are key factors to consider during manufacturing. During compressor operation, the crankshaft of the pump body rotates relative to the bearings. To ensure compressor reliability, lubricating oil is typically added between the crankshaft and the bearings. However, under harsh conditions such as high temperature and high pressure, traditional lubrication methods can easily lead to insufficient lubrication, high frictional heat, and low heat dissipation efficiency between the crankshaft and bearings. This can result in oil film rupture, high frictional losses, and reduced compressor reliability and lifespan.

[0022] In view of this, the present invention provides a bearing, a pump body structure, and a compressor for a pump body structure. The bearing, pump body structure, and compressor for a pump body structure according to embodiments of the present invention can effectively improve lubrication efficiency, reduce friction loss, and lower bearing temperature, thereby improving the service life of the bearing and the operational reliability of the compressor.

[0023] Please see Figures 1 to 8 The first aspect of this utility model provides a bearing for a pump body structure, including a bearing body 10, a hub portion 20 extending axially from the middle of one end of the bearing body 10, the bearing body 10 having a bearing channel 11, the bearing channel 11 penetrating the bearing body 10 and the hub portion 20 along the axial direction of the bearing body 10; a plurality of tapered oil guide holes 30 communicating with the bearing channel 11 are provided through the side wall of the hub portion 20, the larger diameter end of the tapered oil guide hole 30 is provided on the outer side wall of the hub portion 20, and the smaller diameter end of the tapered oil guide hole 30 is provided on the inner side wall of the hub portion 20; the tapered oil guide holes 30 are inclinedly provided on the hub portion 20, and the angle formed between the center line of the tapered oil guide hole 30 and the axis of the bearing channel 11 is β, satisfying the relationship: 25°≤β≤35°.

[0024] Therefore, according to the bearing for the pump body structure of this utility model, by obliquely providing a plurality of tapered oil guide holes 30 communicating with the bearing channel 11 on the hub portion 20 of the bearing body 10, and by placing the larger diameter end of the tapered oil guide hole 30 on the outer side wall of the hub portion 20, the problem of insufficient oil film on the inner side due to excessively thick oil film on the outer side of the tapered oil guide hole 30 can be avoided. Centrifugal force is used to drive the lubricating oil to flow adaptively, thereby allowing more lubricating oil to enter the bearing channel 11 from the outer side of the plurality of tapered oil guide holes 30 to lubricate the crankshaft 50 and the bearing channel 11. This effectively reduces the dynamic friction area between the crankshaft 50 and the bearing, improves the lubrication efficiency between the crankshaft 50 and the bearing, and reduces the bearing temperature, thereby reducing the frictional loss of the bearing, improving the service life of the bearing and the operational reliability of the compressor.

[0025] Specifically, the inner wall of the conical oil guide hole 30 of this invention is provided with a threaded groove, and the two ends of the threaded groove respectively penetrate both ends of the conical oil guide hole 30. That is to say, by providing a threaded groove on the inner wall of the conical oil guide hole 30, this invention can effectively extend the residence time of lubricating oil, thereby improving the oil storage performance of the conical oil guide hole 30. In addition, in this invention, a plurality of conical oil guide holes 30 are spirally distributed on the hub portion 20, which can be understood as the line connecting the plurality of conical oil guide holes 30 on the outer side wall of the hub portion 20 forming a spiral.

[0026] Optionally, in some embodiments of this utility model, the maximum diameter of the tapered oil guide hole 30 is d, which satisfies the relationship: 0.8mm≤d≤1.5mm.

[0027] Optionally, in some embodiments of this utility model, the number of tapered oil guide holes 30 is 3-8.

[0028] Optionally, in some embodiments of the present invention, an annular groove 12 is formed at the end of the bearing body 10 away from the hub portion 20, and the annular groove 12 is spaced around the bearing channel 11.

[0029] The following is combined Figures 1 to 8 The following is a detailed description of a specific embodiment of the bearing for a pump body structure according to the present invention. It is worth understanding that the following is merely an illustrative description and should not be construed as limiting the present invention.

[0030] This embodiment provides a bearing for a pump body structure, including a bearing body 10, a hub portion 20 extending axially from the middle of one end of the bearing body 10, a bearing channel 11, and the bearing channel 11 penetrating the bearing body 10 and the hub portion 20 along the axial direction of the bearing body 10; a plurality of tapered oil guide holes 30 communicating with the bearing channel 11 are provided through the side wall of the hub portion 20, the larger diameter end of the tapered oil guide hole 30 is provided on the outer side wall of the hub portion 20, and the smaller diameter end of the tapered oil guide hole 30 is provided on the inner side wall of the hub portion 20; the tapered oil guide holes 30 are inclinedly provided on the hub portion 20, and the angle formed between the center line of the tapered oil guide hole 30 and the axis of the bearing channel 11 is β, where β=30°.

[0031] Specifically, in this embodiment, the inner wall of the tapered oil guide hole 30 is provided with a threaded groove, and the two ends of the threaded groove respectively penetrate both ends of the tapered oil guide hole 30. In addition, the maximum diameter of the tapered oil guide hole 30 in this embodiment is d, where d = 1.2 mm.

[0032] In this embodiment, a plurality of tapered oil guide holes 30 are spirally distributed on the hub portion 20, and the line connecting the plurality of tapered oil guide holes 30 on the outer side wall of the hub portion 20 is a spiral line with a spiral angle of 25°. In addition, there are 5 tapered oil guide holes 30.

[0033] Furthermore, in this embodiment, an annular groove 12 is formed in the end of the bearing body 10 away from the hub portion 20, and the annular groove 12 is spaced around the bearing channel 11.

[0034] Therefore, according to this embodiment, the bearing for the pump body structure has a plurality of tapered oil guide holes 30 that communicate with the bearing channel 11 obliquely provided on the hub portion 20 of the bearing body 10, and the larger diameter end of the tapered oil guide hole 30 is located on the outer side wall of the hub portion 20. This avoids the problem of insufficient oil film on the inner side due to excessively thick oil film on the outer side of the tapered oil guide hole 30. Centrifugal force is used to drive the lubricating oil to flow adaptively, so that more lubricating oil enters the bearing channel 11 from the outer side of the plurality of tapered oil guide holes 30 to lubricate the crankshaft 50 and the bearing channel 11. This effectively reduces the dynamic friction area between the crankshaft 50 and the bearing, improves the lubrication efficiency between the crankshaft 50 and the bearing, and reduces the bearing temperature, thereby reducing the friction loss of the bearing, improving the service life of the bearing and the operational reliability of the compressor.

[0035] The following is combined Figures 1 to 8 The following is a detailed description of a specific embodiment of the bearing for a pump body structure according to the present invention. It is worth understanding that the following is merely an illustrative description and should not be construed as limiting the present invention.

[0036] This embodiment provides a bearing for a pump body structure, including a bearing body 10, a hub portion 20 extending axially from the middle of one end of the bearing body 10, a bearing channel 11, and the bearing channel 11 penetrating the bearing body 10 and the hub portion 20 along the axial direction of the bearing body 10; a plurality of tapered oil guide holes 30 communicating with the bearing channel 11 are provided through the side wall of the hub portion 20, the larger diameter end of the tapered oil guide hole 30 is provided on the outer side wall of the hub portion 20, and the smaller diameter end of the tapered oil guide hole 30 is provided on the inner side wall of the hub portion 20; the tapered oil guide holes 30 are inclinedly provided on the hub portion 20, and the angle formed between the center line of the tapered oil guide hole 30 and the axis of the bearing channel 11 is β, where β=25°.

[0037] Specifically, in this embodiment, the inner wall of the tapered oil guide hole 30 is provided with a threaded groove, and the two ends of the threaded groove respectively penetrate both ends of the tapered oil guide hole 30. In addition, the maximum diameter of the tapered oil guide hole 30 in this embodiment is d, where d = 0.8 mm.

[0038] In this embodiment, a plurality of tapered oil guide holes 30 are spirally distributed on the hub portion 20, and the line connecting the plurality of tapered oil guide holes 30 on the outer side wall of the hub portion 20 is a spiral line with a spiral angle of 25°. In addition, there are 3 tapered oil guide holes 30.

[0039] Furthermore, in this embodiment, an annular groove 12 is formed in the end of the bearing body 10 away from the hub portion 20, and the annular groove 12 is spaced around the bearing channel 11.

[0040] Therefore, according to this embodiment, the bearing for the pump body structure has a plurality of tapered oil guide holes 30 that communicate with the bearing channel 11 obliquely provided on the hub portion 20 of the bearing body 10, and the larger diameter end of the tapered oil guide hole 30 is located on the outer side wall of the hub portion 20. This avoids the problem of insufficient oil film on the inner side due to excessively thick oil film on the outer side of the tapered oil guide hole 30. Centrifugal force is used to drive the lubricating oil to flow adaptively, so that more lubricating oil enters the bearing channel 11 from the outer side of the plurality of tapered oil guide holes 30 to lubricate the crankshaft 50 and the bearing channel 11. This effectively reduces the dynamic friction area between the crankshaft 50 and the bearing, improves the lubrication efficiency between the crankshaft 50 and the bearing, and reduces the bearing temperature, thereby reducing the friction loss of the bearing, improving the service life of the bearing and the operational reliability of the compressor.

[0041] The following is combined Figures 1 to 8 The following is a detailed description of a specific embodiment of the bearing for a pump body structure according to the present invention. It is worth understanding that the following is merely an illustrative description and should not be construed as limiting the present invention.

[0042] This embodiment provides a bearing for a pump body structure, including a bearing body 10, a hub portion 20 extending axially from the middle of one end of the bearing body 10, a bearing channel 11, and the bearing channel 11 penetrating the bearing body 10 and the hub portion 20 along the axial direction of the bearing body 10; a plurality of tapered oil guide holes 30 communicating with the bearing channel 11 are provided through the side wall of the hub portion 20, the larger diameter end of the tapered oil guide hole 30 is provided on the outer side wall of the hub portion 20, and the smaller diameter end of the tapered oil guide hole 30 is provided on the inner side wall of the hub portion 20; the tapered oil guide holes 30 are inclinedly provided on the hub portion 20, and the angle formed between the center line of the tapered oil guide hole 30 and the axis of the bearing channel 11 is β, where β=35°.

[0043] Specifically, in this embodiment, the inner wall of the tapered oil guide hole 30 is provided with a threaded groove, and the two ends of the threaded groove respectively penetrate both ends of the tapered oil guide hole 30. In addition, the maximum diameter of the tapered oil guide hole 30 in this embodiment is d, where d = 1.5 mm.

[0044] In this embodiment, a plurality of tapered oil guide holes 30 are spirally distributed on the hub portion 20, and the line connecting the plurality of tapered oil guide holes 30 on the outer side wall of the hub portion 20 is a spiral line with a spiral angle of 25°. In addition, there are 8 tapered oil guide holes 30.

[0045] Furthermore, in this embodiment, an annular groove 12 is formed in the end of the bearing body 10 away from the hub portion 20, and the annular groove 12 is spaced around the bearing channel 11.

[0046] Therefore, according to this embodiment, the bearing for the pump body structure has a plurality of tapered oil guide holes 30 that communicate with the bearing channel 11 obliquely provided on the hub portion 20 of the bearing body 10, and the larger diameter end of the tapered oil guide hole 30 is located on the outer side wall of the hub portion 20. This avoids the problem of insufficient oil film on the inner side due to excessively thick oil film on the outer side of the tapered oil guide hole 30. Centrifugal force is used to drive the lubricating oil to flow adaptively, so that more lubricating oil enters the bearing channel 11 from the outer side of the plurality of tapered oil guide holes 30 to lubricate the crankshaft 50 and the bearing channel 11. This effectively reduces the dynamic friction area between the crankshaft 50 and the bearing, improves the lubrication efficiency between the crankshaft 50 and the bearing, and reduces the bearing temperature, thereby reducing the friction loss of the bearing, improving the service life of the bearing and the operational reliability of the compressor.

[0047] like Figure 7 and Figure 8As shown, the second aspect of this utility model provides a pump body structure, which includes a bearing for a pump body structure as described above, and further includes a cylinder assembly 40, a crankshaft 50, and a secondary bearing 60. The bearing body and the secondary bearing 60 are respectively disposed at both axial ends of the cylinder assembly 40, and the crankshaft 50 is sequentially passed through the bearing body, the cylinder assembly 40, and the secondary bearing 60. The cylinder assembly 40 may be a structure containing a single cylinder or a structure containing two cylinders, and the secondary bearing 60 may be a bearing for a pump body structure as described above, or other conventional bearing structures.

[0048] Therefore, the pump body structure according to the embodiment of this utility model can effectively improve lubrication efficiency, reduce friction loss, and lower bearing temperature, thereby improving the service life of the bearing and the operational reliability of the compressor.

[0049] A third aspect of this utility model provides a compressor comprising the pump body structure described above. The compressor according to embodiments of this utility model can effectively improve lubrication efficiency, reduce frictional loss, and lower bearing temperature, thereby improving bearing life and compressor operational reliability.

[0050] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model's application to bearings, pump body structures, and compressors. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A bearing for a pump body structure, characterized in that: The device includes a bearing body, with a hub extending axially from the middle of one end of the bearing body. The bearing body has a bearing channel that runs through the bearing body and the hub along the axial direction of the bearing body. A plurality of tapered oil guide holes communicating with the bearing channel are formed through the sidewall of the hub. The larger diameter end of each tapered oil guide hole is located on the outer sidewall of the hub, and the smaller diameter end is located on the inner sidewall of the hub. The tapered oil guide holes are inclined on the hub, and the angle β formed between the centerline of the tapered oil guide hole and the axis of the bearing channel satisfies the relationship: 25°≤β≤35°.

2. The bearing for a pump body structure according to claim 1, characterized in that: The included angle β between the centerline of the tapered oil guide hole and the axis of the bearing channel is equal to 30°.

3. The bearing for a pump body structure according to claim 1, characterized in that: The inner wall of the tapered oil guide hole is provided with a threaded groove, and the two ends of the threaded groove respectively pass through the two ends of the tapered oil guide hole.

4. The bearing for a pump body structure according to claim 1, characterized in that: The maximum diameter of the tapered oil guide hole is d, which satisfies the relationship: 0.8mm≤d≤1.5mm.

5. The bearing for a pump body structure according to claim 1, characterized in that: Several of the tapered oil guide holes are spirally distributed on the hub.

6. The bearing for a pump body structure according to claim 5, characterized in that: The line connecting several of the conical oil guide holes on the outer side wall of the hub is a spiral line with a helix angle of 25°.

7. The bearing for a pump body structure according to claim 1, characterized in that: The number of tapered oil guide holes is 3-8.

8. The bearing for a pump body structure according to claim 1, characterized in that: An annular groove is formed at the end of the bearing body away from the hub, and the annular groove is spaced around the bearing channel.

9. A pump body structure, characterized in that: Includes the bearings for pump body structures according to any one of claims 1 to 8.

10. A compressor, characterized in that: Includes the pump body structure according to claim 9.

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