Welding-free supporting column retainer and bearing

Abstract

The utility model provides a welding-free supporting column retainer and a bearing. The welding-free supporting column retainer comprises a supporting column, an annular retainer cover and an annular retainer seat, the supporting column comprises a central part, a cover connecting part and a seat connecting part; the central part is sleeved with a hollow roller, the cover connecting part is connected with an annular retainer cover, and the seat connecting part is connected with an annular retainer seat; the annular retainer cover is provided with a plurality of insertion holes matched with the cover connecting part, one end, far away from the central part, of each insertion hole is provided with an annular retainer cover groove, the cover connecting part is provided with an annular groove, the annular retainer cover groove is matched with the annular groove, and an annular gasket is arranged in a space formed by the annular retainer cover groove and the annular groove; welding is not needed in the sleeving process of the supporting column holder; a traditional welding process is replaced by a pure mechanical structure of taper thread connection and elastic gasket and step limiting, and the industrial problems that the welding quality is uncontrollable and the efficiency is low are solved.

Description

Technical Field

[0001] This utility model belongs to the field of bearing technology, and in particular to a weld-free support cage and bearing. Background Technology

[0002] Ordinary support cages have a threaded connection at one end and a weld at the other. Generally, there are a series of problems such as incomplete welds and missing welds between the welded support and the cage. The quality of the weld surface is difficult to guarantee, which can lead to damage to the cage and support after the weld breaks, ultimately causing damage to the bearing. In addition, the welding process is slow, which affects the processing efficiency. Utility Model Content

[0003] In view of the above problems, the purpose of this application is to provide a weld-free support cage and bearing, so that the assembly process of the support cage does not require welding.

[0004] To achieve some or all of the above objectives or other objectives, this application provides the following technical solution: a weld-free support cage, comprising a support, an annular cage cover, and an annular cage seat; the support includes a central portion, a cover connecting portion, and a seat connecting portion; a hollow roller is fitted on the central portion, the cover connecting portion is connected to the annular cage cover, and the seat connecting portion is connected to the annular cage seat; the annular cage cover is provided with a plurality of insertion holes that match the cover connecting portion, and an annular cage cover groove is provided at the end of the insertion hole away from the central portion; an annular groove is provided on the cover connecting portion; the annular cage cover groove matches the annular groove; and an annular gasket is provided in the space formed by the annular cage cover groove and the annular groove.

[0005] Furthermore, the diameter of the cover connecting part is smaller than the diameter of the center part, the insertion hole contacts the cover connecting part, and the end face of the annular retainer cover contacts the end face of the center part.

[0006] Furthermore, the annular gasket has an opening.

[0007] Furthermore, the annular gasket is made of elastic steel.

[0008] Furthermore, the seat connection portion is an inwardly tapered structure, and the diameter of the end of the seat connection portion near the center is larger than the diameter of the end of the seat connection portion away from the center; the annular retainer seat is provided with a plurality of screw holes that match the seat connection portion.

[0009] Furthermore, the seat connecting part and the annular cage seat are threadedly connected, the seat connecting part is provided with a tapered thread, and the screw hole is provided with an internal thread that matches the tapered thread.

[0010] Furthermore, the annular retainer cover is integrally formed.

[0011] Furthermore, the annular retainer base is integrally formed.

[0012] Furthermore, a cylindrical roller bearing includes a cylindrical roller bearing inner ring, a cylindrical roller bearing outer ring, hollow rollers, and a weldless support cage, wherein the hollow rollers are cylindrical hollow rollers, and the cylindrical hollow rollers are mounted on the weldless support cage.

[0013] Furthermore, a tapered roller bearing includes a tapered roller bearing inner ring, a tapered roller bearing outer ring, hollow rollers, and a weld-free support cage, wherein the hollow rollers are tapered hollow rollers, and the tapered hollow rollers are mounted on the weld-free support cage.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: one end of the support retainer in this application is connected to the annular retainer seat by a tapered thread, and the other end of the support retainer is provided with an annular groove. The annular groove saves space and facilitates the installation of high-strength elastic gaskets. The other end of the support retainer is also provided with a step to achieve axial limiting. The weld-free support retainer replaces the traditional welding process with a pure mechanical structure of tapered thread connection + elastic gasket and step limiting, solving the industry problems of uncontrollable welding quality and low efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a structural diagram of the support column;

[0017] Figure 3 A schematic diagram of the structure of the annular cage cover and the annular cage seat;

[0018] Figure 4 This is a front view of the annular gasket;

[0019] Figure 5 Left view of the annular gasket;

[0020] Figure 6 This is a schematic diagram of the cylindrical roller bearing in Example 1;

[0021] Figure 7 This is a schematic diagram of the tapered roller bearing in Example 2;

[0022] In the diagram: 1. Center part; 2. Cover connection part; 201. Annular groove; 3. Seat connection part; 301. Tapered thread; 4. Hollow roller; 5. Annular cage cover; 501. Insertion hole; 502. Annular cage cover groove; 6. Annular cage seat; 601. Screw hole; 7. Annular washer; 8. Inner ring of cylindrical roller bearing; 9. Outer ring of cylindrical roller bearing; 10. Hollow cylindrical roller; 11. Inner ring of tapered roller bearing; 12. Outer ring of tapered roller bearing; 13. Hollow tapered roller. Detailed Implementation

[0023] To make the structure and function of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Example

[0024] See appendix Figure 1-6 A cylindrical roller bearing includes an inner ring 8, an outer ring 9, hollow rollers 4, and a weld-free support cage. The hollow rollers 4 are cylindrical hollow rollers 10, which are mounted on the weld-free support cage.

[0025] The weld-free support cage includes a support, an annular cage cover 5, and an annular cage seat 6. The support includes a central portion 1, a cover connecting portion 2, and a seat connecting portion 3. A hollow roller 4 is fitted on the central portion 1. The cover connecting portion 2 is connected to the annular cage cover 5, and the seat connecting portion 3 is connected to the annular cage seat 6. The annular cage cover 5 is provided with a plurality of insertion holes 501 that match the cover connecting portion 2. The end of the insertion hole 501 away from the central portion 1 is provided with an annular cage cover groove 502. The cover connecting portion 2 is provided with an annular groove 201. The annular cage cover groove 502 matches the annular groove 201. An annular gasket 7 is provided in the space formed by the annular cage cover groove 502 and the annular groove 201.

[0026] The diameter of the cover connecting part 2 is smaller than the diameter of the center part 1. The insertion hole 501 contacts the cover connecting part 2, and the end face of the annular retainer cover 5 contacts the end face of the center part 1. The cover connecting part 2 and the center part 1 form a step, and the annular retainer cover 5 is restricted from moving by the step, thereby achieving axial positioning of the annular retainer cover 5.

[0027] The annular gasket 7 has an opening for easy assembly.

[0028] The annular gasket 7 is made of elastic steel, and in this utility model, the annular gasket 7 is made of high manganese steel.

[0029] The seat connection part 3 is an inwardly tapered structure, and the diameter of the end of the seat connection part 3 near the center part 1 is larger than the diameter of the end of the seat connection part 3 away from the center part 1. The annular retainer seat 6 is provided with multiple screw holes 601 that match the seat connection part 3. The tapered surface fit can automatically center, compensate for machining tolerances, and ensure the coaxiality of the support and the retainer seat. The large contact area and uniform stress distribution avoid local stress concentration. The tapered design allows the load to be transmitted in both axial and radial directions, improving bending and torsional resistance. The tapered surface has a strong guiding effect during screwing, making it easy to align the screw holes 601 and reducing assembly difficulty. It achieves the triple advantages of self-locking anti-loosening, high load-bearing capacity, and easy assembly.

[0030] The seat connecting part 3 and the annular retainer seat 6 are threadedly connected. The seat connecting part 3 is provided with a tapered thread 301, and the screw hole 601 is provided with an internal thread that matches the tapered thread 301.

[0031] Based on the above technical solution, the seat connection 3 generates radial clamping force through tapered fit, forming a mechanical self-locking mechanism to prevent the support column from rotating and loosening due to vibration or the hollow roller 4 during bearing operation; under high-speed and heavy-load conditions, the threaded connection is more stable and no additional anti-loosening measures (such as thread sealant) are required.

[0032] When the hollow roller 4 rotates and drives the support to rotate clockwise, the support and the annular cage seat 6 are locked; when the hollow roller 4 rotates and drives the support to rotate counterclockwise, the annular cage cover 5 limits the movement of the support.

[0033] The annular retainer cover 5 is integrally set; the retainer cover will move as the support rotates; the annular retainer base 6, which is integrally set, may drive several supports to rotate counterclockwise at the same time when the hollow roller 4 rotates, but will not drive all the supports to rotate counterclockwise, so that the annular retainer cover 5 cannot be pushed out as a whole, thus eliminating the need for welding and preventing it from loosening.

[0034] The annular retainer 6 is integrally formed. Example

[0035] See appendix Figure 1-7 A tapered roller bearing includes a tapered roller bearing inner ring 11, a tapered roller bearing outer ring 12, hollow rollers 4, and a weld-free support cage. The hollow rollers 4 are tapered hollow rollers 13, which are mounted on the weld-free support cage.

[0036] The weld-free support cage adopts the same technical solution as in Example 1.

[0037] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.

Claims

1. A weld-free support cage, characterized in that: The device includes a support column, an annular cage cover, and an annular cage seat. The support column includes a central portion, a cover connecting portion, and a seat connecting portion. A hollow roller is fitted on the central portion. The cover connecting portion connects to the annular cage cover, and the seat connecting portion connects to the annular cage seat. The annular cage cover has multiple insertion holes that match the cover connecting portion. The end of each insertion hole away from the central portion has an annular cage cover groove. The cover connecting portion has an annular groove. The annular cage cover groove matches the annular groove. An annular gasket is provided in the space formed by the annular cage cover groove and the annular groove.

2. The weld-free support retainer according to claim 1, characterized in that: The diameter of the cover connecting part is smaller than the diameter of the center part, the insertion hole contacts the cover connecting part, and the end face of the annular retainer cover contacts the end face of the center part.

3. The weld-free support retainer according to claim 1, characterized in that: The annular gasket has an opening.

4. The weld-free support retainer according to claim 1, characterized in that: The annular gasket is made of elastic steel.

5. The weld-free support retainer according to claim 1, characterized in that: The seat connection is an inwardly tapered structure, and the diameter of the end of the seat connection near the center is larger than the diameter of the end of the seat connection away from the center; the annular retainer seat is provided with a plurality of screw holes that match the seat connection.

6. A weld-free support retainer according to claim 5, characterized in that: The seat connection part and the annular cage seat are threadedly connected. The seat connection part is provided with a tapered thread, and the screw hole is provided with an internal thread that matches the tapered thread.

7. The weld-free support retainer according to claim 1, characterized in that: The annular retainer cover is integrated into the design.

8. The weld-free support retainer according to claim 1, characterized in that: The annular cage base is integrally formed.

9. A cylindrical roller bearing, characterized in that: The bearing includes an inner ring of a cylindrical roller bearing, an outer ring of a cylindrical roller bearing, and hollow rollers, characterized in that: it further includes a cage according to any one of claims 1-8, wherein the hollow rollers are cylindrical hollow rollers, and the cylindrical hollow rollers are mounted on the cage.

10. A tapered roller bearing, characterized in that: The bearing includes an inner ring of a tapered roller bearing, an outer ring of a tapered roller bearing, and hollow rollers, characterized in that it further includes a cage according to any one of claims 1-8, wherein the hollow rollers are tapered hollow rollers, and the tapered hollow rollers are fitted onto the cage.

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