Thrust bearings, compressors and air conditioners

Abstract

The present application provides a thrust bearing, a compressor and an air conditioner, comprising a bearing seat and a thrust part; the bearing seat comprises a bearing surface; the thrust part comprises a thrust unit and a connecting unit, and the thrust unit is connected to the connecting unit. In the embodiment of the present application, a thrust bearing, a compressor and an air conditioner are provided, the thrust unit is arranged on the bearing surface, and the connecting unit is clamped on the bearing seat. It can avoid welding and riveting operations, increase the effective action area, increase the bearing capacity, and improve the bearing performance.

Description

Technical Field

[0001] The present application belongs to the technical field of bearings, and in particular relates to a thrust bearing, a compressor and an air conditioner. Background Art

[0002] The foil of the existing foil-type air dynamic thrust bearing is riveted or welded to the base. The riveting or welding connection method requires a part of the operation area to be reserved at the fixed end of the foil to facilitate the welding and riveting operations. The foil-type air dynamic bearing has very high requirements for the overall precision of the bearing. Riveting and welding can easily cause deformation of the foil area, affecting the bearing performance. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present application is to provide a thrust bearing that can avoid welding and riveting operations, increase the effective action area, increase the load-bearing capacity, and improve the bearing performance.

[0004] In order to solve the above problems, the present application provides a thrust bearing, comprising a bearing seat and a thrust portion;

[0005] The bearing seat includes a bearing surface;

[0006] The thrust portion includes a thrust unit and a connecting unit, the thrust unit is connected to the connecting unit, the thrust unit is arranged on the bearing surface, and the connecting unit is clamped on the bearing seat.

[0007] Preferably, the bearing seat comprises a first bearing seat and a second bearing seat, the first bearing seat is connected to the second bearing seat, and the connecting unit is clamped between the first bearing seat and the second bearing seat.

[0008] Preferably, the first bearing seat is coaxially arranged with the second bearing seat, and the thrust unit is arranged on the bottom surface of the first bearing seat on a side away from the second bearing seat.

[0009] Preferably, a slot is provided on the first bearing seat, and the connecting unit is snapped into the slot.

[0010] Preferably, the slot comprises a first slot and a second slot, the first slot is arranged at both ends of the second slot along the radial direction of the first bearing seat, and the depth of the second slot is greater than the depth of the first slot;

[0011] The connecting unit includes a connecting section, a first clamping section and a second clamping section which are arranged in sequence, the connecting section is connected to the thrust unit, the second clamping section protrudes from the plane where the first clamping section is located in the direction toward the thrust unit, the first clamping section is arranged in the first clamping groove, and the second clamping section is arranged in the second clamping groove.

[0012] Preferably, the length of the second clamping groove decreases along the direction toward the thrust unit, and one end of the second clamping section close to the first clamping section is connected to a groove wall at one end of the second clamping groove.

[0013] Preferably, the second clamping section is U-shaped, and an opening of the second clamping section faces the first clamping section.

[0014] Preferably, the clamping groove comprises a first mounting groove and a second mounting groove, the first mounting groove is arranged at two ends of the second mounting groove along the radial direction of the first bearing seat, and a groove is arranged in the first mounting groove;

[0015] The connecting unit comprises a connecting section, a first mounting section and a second mounting section which are arranged in sequence, the connecting section is connected to the thrust unit, and the second mounting section protrudes from the plane where the first mounting section is located in a direction toward the thrust unit;

[0016] The second bearing seat is provided with a first protrusion and a second protrusion, the height of the second protrusion is greater than the height of the first protrusion, the first protrusion can press at least a part of the first mounting section into the first mounting groove, and the second protrusion can press the second mounting section into the second mounting groove.

[0017] Preferably, the depth of the second mounting groove is greater than the depth of the first mounting groove, and when the first bearing seat and the second bearing seat clamp the connecting unit, the second protrusion and the second mounting groove clamp the second mounting section, and then the first protrusion and the first mounting groove clamp the first mounting section.

[0018] Preferably, the slot further includes a third slot, the third slot is arranged on the circumferential side wall of the first bearing seat, and the connecting section is arranged in the third slot.

[0019] Preferably, the groove extends radially of the first bearing seat, there are multiple grooves, and the multiple grooves are evenly arranged on the first bearing seat along the circumferential direction.

[0020] Preferably, the thrust portion includes a plurality of thrust units, and the plurality of thrust units are circumferentially arranged on the bearing surface.

[0021] Preferably, each thrust unit is provided with two connecting units, and the two connecting units are arranged at two ends of the thrust unit along the radial direction of the bearing seat.

[0022] Preferably, the thrust unit comprises a thrust member and an elastic member, and the thrust member is located on a side of the elastic member away from the bearing seat.

[0023] Preferably, the thrust member comprises a plane segment and a curved segment, the curved segment is located on a side of the plane segment close to the connecting unit, and the elastic member is S-shaped.

[0024] Preferably, the thrust unit and the connecting unit are an integral structure.

[0025] Preferably, the second bearing seat is made of magnetic conductive material.

[0026] Another aspect of the present invention provides a compressor, comprising the thrust bearing as described above.

[0027] Another aspect of the present invention provides an air conditioner, comprising the thrust bearing as described above.

[0028] Beneficial Effects

[0029] A thrust bearing provided in an embodiment of the present invention can avoid welding and riveting operations, increase the effective action area, increase the bearing capacity, and improve the bearing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the present application;

[0031] Figure 2 An exploded diagram of an embodiment of the present application;

[0032] Figure 3 This is a schematic structural diagram of the first bearing seat of Example 1 of the present application;

[0033] Figure 4 This is a schematic diagram of the unfolded structure of the thrust portion of Example 1 of the present application;

[0034] Figure 5 This is a schematic structural diagram of the thrust portion of Example 1 of the present application;

[0035] Figure 6 is a cross-sectional view of the thrust portion of Example 1 of the present application;

[0036] Figure 7 This is a schematic structural diagram of the thrust portion of Example 2 of the present application;

[0037] Figure 8 It is a cross-sectional view of the thrust portion of Example 2 of the present application.

[0038] The reference numerals are:

[0039] 11. thrust unit; 111. thrust member; 112. elastic member; 12. connecting unit; 121. first clamping section in embodiment 1; 122. second clamping section in embodiment 1; 123. first mounting section in embodiment 2; 124. second mounting section in embodiment 2; 125. connecting section;

[0040] 2. first bearing seat; 21. first slot in embodiment 1; 22. second slot in embodiment 1; 23. first mounting slot in embodiment 2; 231. groove; 24. second mounting slot in embodiment 2; 25. third slot;

[0041] 3. Second bearing seat; 31. First protrusion; 32. Second protrusion. DETAILED DESCRIPTION

[0042] See also Figures 1 to 6 As shown, according to embodiment 1 of the present application, a thrust bearing comprises a bearing seat and a thrust portion;

[0043] The bearing seat includes a load-bearing surface;

[0044] The thrust portion includes a thrust unit 11 and a connecting unit 12, wherein the thrust unit 11 is connected to the connecting unit 12, the thrust unit 11 is arranged on the bearing surface, and the connecting unit 12 is clamped on the bearing seat. By arranging the thrust unit 11 and the connecting unit 12, and making the connecting unit 12 clamped on the bearing seat, it is possible to avoid the use of welding and riveting operations in the prior art to connect the thrust unit 11 and the bearing seat, while increasing the effective action area of ​​the bearing, the bearing capacity can also be increased, and the bearing performance can be improved. Furthermore, the manufacturing materials and surface coatings of the foil-type air dynamic pressure bearing are mostly expensive alloy materials and some composite materials. The use of riveting and welding will cause one or several foils of the bearing to be worn, and the entire bearing needs to be replaced, resulting in an increase in the entire experimental, manufacturing and maintenance costs. In this application, by making the connecting unit 12 clamped on the bearing seat, the thrust portion and the bearing seat are made into a detachable modular structure, so as to achieve the replaceability of the entire bearing module unit and reduce the production and maintenance costs.

[0045] Furthermore, the connecting unit 12 can be detachably clamped on the bearing seat.

[0046] The bearing seat includes a first bearing seat 2 and a second bearing seat 3. The first bearing seat 2 is connected to the second bearing seat 3. The connecting unit 12 is clamped between the first bearing seat 2 and the second bearing seat 3 to ensure stable connection of the thrust portion.

[0047] Furthermore, in this embodiment, the diameter of the second bearing seat 3 is greater than the diameter of the first bearing seat 2 .

[0048] Furthermore, the first bearing seat 2 and the second bearing seat 3 are connected by screws.

[0049] Specifically, screw holes are evenly arranged on the first bearing seat 2 and the second bearing seat 3, and screws are inserted into the screw holes on the first bearing seat 2 and the second bearing seat 3 from the side of the second bearing seat 3 away from the first bearing seat 2 to achieve connection.

[0050] The first bearing seat 2 is coaxially arranged with the second bearing seat 3 , and the thrust unit 11 is arranged on the bottom surface of the first bearing seat 2 on a side away from the second bearing seat 3 .

[0051] Furthermore, the first bearing seat 2 and the second bearing seat 3 are both roughly circular sheets, and the bottom surface of the first bearing is the approximately circular surface of the first bearing.

[0052] The first bearing seat 2 is provided with a slot in which the connecting unit 12 is connected. By providing the slot, the connecting unit 12 can be detachably connected to the bearing seat.

[0053] The slot includes a first slot 21 and a second slot 22. The first slot 21 is arranged at both ends of the second slot 22 along the radial direction of the first bearing seat 2. The depth of the second slot 22 is greater than the depth of the first slot 21. The connecting unit 12 includes a connecting section 125, a first clamping section 121 and a second clamping section 122 arranged in sequence. The connecting section 125 is connected to the thrust unit 11. The second clamping section 122 protrudes from the plane where the first clamping section 121 is located in the direction toward the thrust unit 11. The first clamping section 121 is arranged in the first slot 21, and the second clamping section 122 is arranged in the second slot 22. By providing the first slot 21 and the second slot 22, it is possible to ensure that the connecting unit 12 is stably clamped in the slot and the connection strength is ensured.

[0054] Furthermore, the second slot 22 extends in the radial direction of the first bearing seat 2 , and the first slot 21 is arranged at both ends of the second slot 22 along the extending direction.

[0055] Furthermore, the depth of the first card slot 21 and the second card slot 22 refers to the distance from the slot opening to the slot bottom.

[0056] Furthermore, the distance between the second clamping section 122 and the thrust unit 11 is smaller than the distance between the first clamping section 121 and the thrust unit 11 .

[0057] The length of the second slot 22 decreases along the direction toward the thrust unit 11, and the second clamping section 122 is connected to the slot wall of one end of the second slot 22 at one end close to the first clamping section 121, that is, the two slot walls of the second slot 22 along the length direction are inclined surfaces. When the first bearing seat 2 and the second bearing seat 3 press the connecting unit 12, the pressure of the second bearing seat 3 on the connecting unit 12 is decomposed into a pressing force toward the side where the first bearing seat 2 is located and a pulling force toward the center direction of the first bearing seat 2 through the inclined surface, which can ensure that the connecting unit 12 is pressed in the axial direction of the first bearing seat 2, and at the same time, it can ensure that the connecting unit 12 is tightened in the radial direction of the first bearing seat 2, so as to achieve a stable connection.

[0058] Furthermore, the length of the second slot 22 decreases along the direction toward the thrust unit 11 , that is, the length of the opening of the second slot 22 along the length direction is greater than the length of the slot bottom, and the cross-section of the second slot 22 is an isosceles trapezoid.

[0059] The second clamping section 122 is U-shaped, and the opening of the second clamping section 122 faces the first clamping section 121 , which further ensures that the second clamping section 122 is firmly clamped in the second clamping groove 22 .

[0060] The clamping groove further includes a third clamping groove 25, which is arranged on the circumferential side wall of the first bearing seat 2, and the connecting section 125 is arranged in the third clamping groove 25. By providing the third clamping groove 25, the stable clamping of the connecting section 125 is ensured, and the thrust portion is prevented from rotating along the circumferential direction of the bearing seat.

[0061] Furthermore, the first bearing seat 2 is roughly in the shape of a circular ring, and the circumferential side wall of the first bearing seat 2 is the outer wall and the inner wall of the first bearing seat 2 along the circumferential direction.

[0062] Furthermore, there are multiple third slots 25 , and the multiple third slots 25 are evenly arranged on the circumferential side wall of the first bearing seat 2 .

[0063] The clamping groove extends radially along the first bearing seat 2. There are multiple clamping grooves, and the multiple clamping grooves are evenly arranged on the first bearing seat 2 along the circumferential direction. By providing multiple clamping grooves, a stable connection of the thrust portion is ensured.

[0064] Furthermore, the connecting unit 12 on the same thrust unit 11 and the first clamping groove 21 , the second clamping groove 22 and the third clamping groove 25 to which it is clamped are located on the same radius of the first bearing seat 2 .

[0065] The thrust portion includes a plurality of thrust units 11, which are circumferentially arranged on the bearing surface. By arranging a plurality of thrust units 11, when a thrust unit 11 is damaged, only the thrust unit 11 needs to be replaced, thereby further reducing production and maintenance costs.

[0066] Furthermore, each thrust unit 11 has the same structure, and a plurality of thrust units 11 are evenly arranged on the bearing surface along the circumferential direction with the center of the first bearing seat 2 as the center.

[0067] Two connecting units 12 are provided on each thrust unit 11 . The two connecting units 12 are arranged at two ends of the thrust unit 11 along the radial direction of the bearing seat, thereby ensuring that each thrust unit 11 can be stably connected to the first bearing seat 2 .

[0068] Furthermore, the first bearing seat 2 is roughly annular in shape, and one of the connecting units 12 on the thrust unit 11 is arranged at the inner ring of the first bearing seat 2 , and the other connecting unit 12 is arranged at the outer ring of the first bearing seat 2 .

[0069] The thrust unit 11 includes a thrust piece 111 and an elastic piece 112 . The thrust piece 111 is located on a side of the elastic piece 112 away from the bearing seat. The thrust function of the thrust bearing is achieved by arranging the thrust piece 111 and the elastic piece 112 .

[0070] The thrust piece 111 includes a plane section and a curved section. The curved section is located on the side of the plane section close to the connecting unit 12. The elastic piece 112 is S-shaped. The plane section and the curved section are used to contact other components. The elastic piece 112 is set to be S-shaped so that the elastic piece 112 has elasticity.

[0071] Furthermore, the elastic member 112 is wave-shaped.

[0072] The thrust unit 11 and the connecting unit 12 are an integrated structure, which is convenient for processing and disassembly.

[0073] Further, such as Figure 4 As shown, the thrust unit 11 is fan-shaped after being unfolded, and the thrust piece 111 and the elastic piece 112 are respectively located on both sides along the circumferential direction. The elastic piece 112 is made by stamping. After the elastic piece 112 is made, it is folded along the radius of the thrust unit 11 on the side of the connecting unit 12 close to the thrust piece 111 to form a Figure 5 Thrust portion shown.

[0074] The second bearing seat 3 is made of magnetic conductive material, and an axial margin can be reserved during processing, so that the processing accuracy requirement can be reduced. The second bearing seat 3 can also be subjected to secondary grinding according to actual measurement and assembly conditions to ensure assembly accuracy.

[0075] Example 2

[0076] like Figure 7-8 As shown, the difference from embodiment 1 is that the clamping groove includes a first mounting groove 23 and a second mounting groove 24, the first mounting groove 23 is arranged at both ends of the second mounting groove 24 along the radial direction of the first bearing seat 2, and a groove 231 is arranged in the first mounting groove 23;

[0077] The connecting unit 12 includes a connecting section 125, a first mounting section 123 and a second mounting section 124 which are arranged in sequence. The connecting section 125 is connected to the thrust unit 11. The second mounting section 124 protrudes from the plane where the first mounting section 123 is located in the direction toward the thrust unit 11.

[0078] The second bearing seat 3 is provided with a first protrusion 31 and a second protrusion 32. The height of the second protrusion 32 is greater than that of the first protrusion 31. The first protrusion 31 can press at least a part of the first mounting section 123 into the first mounting groove 23, and the second protrusion 32 can press the second mounting section 124 into the second mounting groove 24, thereby ensuring a tight connection between the connecting unit 12 and the slot.

[0079] Furthermore, the first installation section 123 and the second installation section 124 substantially form a Z shape.

[0080] Furthermore, the second bearing seat 3 is retracted in a direction perpendicular to the first bearing seat 2, and the second protrusion 32 preferentially contacts the second mounting section 124, thereby limiting the position of the second mounting section 124. As the tightening continues, the first protrusion 31 contacts the first mounting section 123 and squeezes the first mounting section 123, thereby achieving tension and tightening of the thrust portion.

[0081] Furthermore, the second protrusion 32 contacts the second mounting section 124 in front, and the first protrusion 31 contacts the first mounting section 123 in the back.

[0082] The depth of the second mounting groove 24 is greater than the depth of the first mounting groove 23. When the first bearing seat 2 and the second bearing seat 3 clamp the connecting unit 12, the second protrusion 32 and the second mounting groove 24 clamp the second mounting section 124, and then the first protrusion 31 and the first mounting groove 23 clamp the first mounting section 123, ensuring that the first mounting section 123 and the second mounting section 124 are pressed along the axial direction of the bearing seat and tightened along the radial direction of the bearing seat.

[0083] In another aspect of the present application, a compressor is provided, comprising the thrust bearing as described above.

[0084] In another aspect of the present application, an air conditioner is provided, comprising the thrust bearing as described above.

[0085] A thrust bearing provided in an embodiment of the present invention can avoid welding and riveting operations, increase the effective action area, increase the bearing capacity, and improve the bearing performance.

[0086] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0087] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. A thrust bearing, characterized in that: including a bearing seat and a thrust portion; The bearing seat includes a bearing surface; The thrust portion comprises a thrust unit (11) and a connecting unit (12), the thrust unit (11) being connected to the connecting unit (12), the thrust unit (11) being arranged on the bearing surface, and the connecting unit (12) being clamped on the bearing seat; The bearing seat comprises a first bearing seat (2) and a second bearing seat (3); the first bearing seat (2) is connected to the second bearing seat (3); the connecting unit (12) is clamped between the first bearing seat (2) and the second bearing seat (3); a clamping groove is provided on the first bearing seat (2), and the connecting unit (12) is clamped in the clamping groove; There are a plurality of the card slots, each of which comprises a first mounting slot (23) and a second mounting slot (24), the first mounting slot (23) being arranged at both ends of the second mounting slot (24) along the radial direction of the first bearing seat, the connecting unit comprising a connecting section (125), a first mounting section (123) and a second mounting section (124) which are arranged in sequence, the connecting section (125) being connected to the thrust stop unit, and the second mounting section (124) protruding from a plane where the first mounting section (123) is located in a direction toward the thrust stop unit; The second bearing seat (3) is provided with a first protrusion (31) and a second protrusion (32); the height of the second protrusion (32) is greater than the height of the first protrusion (31); the first protrusion (31) is capable of pressing at least a portion of the first mounting section (123) into the first mounting groove (23); and the second protrusion (32) is capable of pressing the second mounting section (124) into the second mounting groove (24).

2. The thrust bearing according to claim 1, characterized in that: The first bearing seat (2) and the second bearing seat (3) are coaxially arranged, and the thrust unit (11) is arranged on the bottom surface of the first bearing seat (2) on a side away from the second bearing seat (3).

3. The thrust bearing according to claim 1, characterized in that: A groove is provided in the first installation groove (23).

4. The thrust bearing according to claim 1, characterized in that: The depth of the second mounting groove (24) is greater than the depth of the first mounting groove (23); when the first bearing seat and the second bearing seat clamp the connection unit, the second protrusion and the second mounting groove (24) clamp the second mounting section (124), and then the first protrusion and the first mounting groove (23) clamp the first mounting section (123).

5. The thrust bearing according to claim 1, characterized in that: The clamping slot further comprises a third clamping slot (25), wherein the third clamping slot (25) is arranged on the circumferential side wall of the first bearing seat (2), and the connecting section (125) is arranged in the third clamping slot (25).

6. The thrust bearing according to claim 1, characterized in that: The retaining groove extends radially along the first bearing seat (2), and a plurality of the retaining grooves are evenly arranged on the first bearing seat (2) along the circumferential direction.

7. The thrust bearing according to claim 1, characterized in that: The thrust portion comprises a plurality of thrust units (11), and the plurality of thrust units (11) are arranged on the bearing surface along the circumferential direction.

8. The thrust bearing according to claim 7, characterized in that: Two connecting units (12) are arranged on each thrust unit (11), and the two connecting units (12) are arranged at two ends of the thrust unit (11) along the radial direction of the bearing seat.

9. The thrust bearing according to claim 1, characterized in that: The thrust unit (11) comprises a thrust piece (111) and an elastic piece (112); the thrust piece (111) is located on a side of the elastic piece (112) away from the bearing seat.

10. The thrust bearing according to claim 9, characterized in that: The thrust piece (111) comprises a plane section and a curved section, the curved section is located on a side of the plane section close to the connecting unit (12), and the elastic piece (112) is S-shaped.

11. The thrust bearing according to claim 1, characterized in that: The thrust unit (11) and the connecting unit (12) are an integrated structure.

12. The thrust bearing according to claim 1, characterized in that The second bearing seat (3) is made of magnetic conductive material.

13. A compressor, characterized in that: Comprising a thrust bearing as described in any one of claims 1-12.

14. An air conditioner, characterized in that: Comprising a thrust bearing as described in any one of claims 1-12.

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