Bearing anti-loose sealing structure and installation method

Abstract

The application provides a bearing anti-loose sealing structure and a mounting method, and belongs to the technical field of bearing end cover anti-loose. The technical problem of low equipment maintenance efficiency caused by narrow space of the upper and lower parts of the main shaft end structure when the bearing end cover is loose is solved. The technical scheme is as follows: a bearing anti-loose sealing structure, which comprises a left end cover, a right end cover, a left clamping ring and a right clamping ring, the left end cover and the right end cover are connected to the inner walls of the clamping ring and the right clamping ring respectively, the left clamping ring end and the right clamping ring end are provided with clamping ring grooves, a connecting cylinder is arranged in the clamping ring groove of the right clamping ring, a torsional spring is sleeved on the connecting cylinder, the left clamping ring is sleeved on the connecting cylinder through a pre-formed circular hole, the two ends of the torsional spring abut against the fixed blocks in the two clamping ring grooves, the left clamping ring and the right clamping ring are rotationally connected, and the left clamping ring and the right clamping ring are inserted into the clamping grooves of the bearing seat. The application has the beneficial effects that the convenience of end cover mounting and dismounting is improved, the equipment maintenance efficiency is improved, and the end cover is prevented from being loose during equipment operation.

Description

Technical Field

[0001] This invention relates to the field of bearing end cap anti-loosening technology, and in particular to a bearing anti-loosening sealing structure and installation method. Background Technology

[0002] There are many types of bearing end caps, which mainly serve functions such as positioning, sealing, and dust prevention. Bearing end caps are generally fixed to the housing or bearing seat by bolts. Figure 5 As shown.

[0003] In current stranding equipment, the main shaft structure uses screws to fix the bearing end cover. After the main shaft has been rotating for a period of time, the screws will loosen, resulting in poor sealing. Furthermore, due to the narrow space at the top and bottom of the main shaft end structure, it is very inconvenient to tighten the screws from time to time, which greatly reduces the efficiency of equipment maintenance. Summary of the Invention

[0004] To address the technical problem of low equipment maintenance efficiency caused by the narrow vertical space of the spindle end structure when the bearing end cover becomes loose, and to improve the convenience of end cover installation and removal, increase equipment maintenance efficiency, and prevent the end cover from becoming loose during equipment operation, this invention provides a bearing anti-loosening sealing structure and installation method.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0006] A bearing anti-loosening sealing structure includes a retaining ring type end cap. The retaining ring type end cap includes an end cap body and a retaining ring. The retaining ring is connected to the outer wall of the end cap body. The end cap body includes a left end cap and a right end cap. The retaining ring includes a left retaining ring and a right retaining ring. The left end cap and the right end cap are respectively connected to the inner walls of the retaining ring and the right retaining ring. The ends of the left retaining ring and the right retaining ring are rotatably connected. A torsion spring is built into the rotatable connection between the left retaining ring and the right retaining ring. The torsion spring is used to connect the left retaining ring and the right retaining ring and provide elasticity. The left retaining ring and the right retaining ring rotate to retract and open, which is conducive to installing the end cap body in the bearing seat. The left retaining ring and the right retaining ring are provided with disassembly holes for cooperating with clamps to disassemble the retaining ring.

[0007] The bearing anti-loosening sealing structure also includes a bearing housing, on the inner wall of which a groove is formed. The left and right retaining rings are inserted into the groove to realize the installation of the end cover body on the bearing housing.

[0008] Furthermore, both the left and right retaining rings have retaining ring grooves at their ends, with the grooves on opposite sides. A connecting cylinder is provided in the retaining ring groove of the right retaining ring, and the torsion spring and the end of the left retaining ring are fitted onto the connecting cylinder. A through hole is provided on the connecting cylinder, and a fixing pin is inserted into the through hole. The fixing pin is used to limit the position of the left retaining ring and the torsion spring. Fixing blocks are provided in both retaining ring grooves, and the two ends of the torsion spring abut against the two fixing blocks respectively.

[0009] Furthermore, both ends of the left and right end caps are provided with grooves, the grooves of the left and right end caps are provided on opposite sides, and the inner walls of the grooves at the same end of the left and right end caps are in contact with each other.

[0010] Furthermore, the bearing anti-loosening sealing structure also includes a bearing retaining ring, an annular groove is provided on the side wall of the bearing retaining ring, a sealing ring is inserted into the annular groove, the sealing ring is elastic, and the inner walls of the left end cover and the right end cover abut against the side wall of the sealing ring.

[0011] Furthermore, the sealing ring includes an end cap sealing ring and an elastic element, both of which are annular. The end cap sealing ring is located within an annular groove, and the elastic element is located within the end cap sealing ring.

[0012] Furthermore, the end cap sealing ring has an opening on its side wall for mounting and dismounting the elastic element. The two ends of the opening of the end cap sealing ring are divided into an inner lip and an outer lip. The inner lip is used to abut against the bearing retaining ring, and the outer lip is used to abut against the left end cap and the right end cap.

[0013] To better achieve the objectives of the above invention, the present invention also provides an installation method for a bearing anti-loosening sealing structure, the installation method comprising the following steps:

[0014] S1. Place the torsion spring on the connecting cylinder, with one end of the torsion spring resting on the fixing block of the right retaining ring. Then place the left retaining ring on the connecting cylinder, with the other end of the torsion spring resting on the fixing block of the left retaining ring. Press the left retaining ring to compress the torsion spring, exposing the through hole on the connecting cylinder. Then insert the fixing pin into the through hole and loosen the left retaining ring.

[0015] S2. Press the left and right retaining rings to make them rotate in opposite directions, causing the torsion spring to twist and rotate the left and right end caps in opposite directions; then push the left and right retaining rings into the mounting grooves on the bearing seat, aligning them with the grooves; then release the left and right retaining rings, and the spring force of the torsion spring will act on the fixing blocks of the left and right retaining rings, driving them to rotate apart, thus allowing them to insert into the grooves.

[0016] S3. Insert the elastic element into the end cover sealing ring through the opening of the end cover sealing ring, and fit the end cover sealing ring into the annular groove, with the inner lip located at the bottom wall of the annular groove and the outer lip located at the opening of the annular groove; then connect the bearing into the mounting groove of the bearing housing and fit it onto the main shaft of the equipment, and then fit the bearing retaining ring onto the main shaft of the equipment, so that the bearing retaining ring abuts against the bearing; at the same time, the left end cover and the right end cover press against the elastic element in the end cover sealing ring, so that the outer lip of the end cover sealing ring abuts against the inner wall of the left end cover and the right end cover, and the inner lip of the end cover sealing ring abuts against the bottom wall of the annular groove.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. Through the rotating connection of the left and right retaining rings, when installing the end cover, the left and right retaining rings can be rotated and retracted, compressing the torsion spring. The left and right end covers retract synchronously, allowing them to extend into the bearing housing. Releasing the left and right retaining rings causes the torsion spring force to open them, allowing them to engage in the retaining groove, thus completing the end cover installation. When removing the end cover, pliers are used to rotate the left and right retaining rings in opposite directions through the removal holes on the left and right retaining rings, causing the left and right end covers to retract synchronously. The left and right retaining rings can then be removed from the retaining groove, completing the removal of the left and right end covers and enabling maintenance of the equipment or bearing. This improves the convenience of end cover installation and removal and increases the efficiency of equipment maintenance. When the left and right retaining rings are installed in the retaining groove, they are pressed tightly against the bottom wall of the retaining groove by the torsional force of the torsion spring, making it difficult for them to come out of the retaining groove, thus preventing the left and right end covers from becoming loose.

[0019] 2. During operation, the vibration of the equipment can easily cause the left and right end covers to rotate and open, and the lubricating oil in the bearing can easily leak out from the gap between the left and right end covers, thus affecting the sealing performance of the end covers to the bearings.

[0020] By creating the grooves, the left and right end covers overlap in area along the axial direction of the end cover body. When the left and right end covers rotate and open due to equipment vibration, the inner walls of the grooves at the same end of the left and right end covers are in contact and always in an overlapping state, thus preventing gaps from forming between the left and right end covers and improving the sealing performance of the end covers for the bearings.

[0021] 3. By setting the end cover sealing ring and elastic element, after the bearing retaining ring is installed, the inner wall of the annular groove and the inner walls of the left and right end covers press the end cover sealing ring and elastic element. The elastic force of the elastic element causes the end cover sealing ring to be clamped between the inner wall of the annular groove and the inner walls of the left and right end covers, which can seal the end cover body and the bearing retaining ring and improve the sealing performance. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0023] Figure 1 This is a schematic diagram of the snap ring end cap structure in an embodiment of the present invention.

[0024] Figure 2 for Figure 1 A magnified view of part A in the diagram.

[0025] Figure 3 This is a cross-sectional schematic diagram of the snap ring end cap connected to the bearing housing in an embodiment of the present invention.

[0026] Figure 4 for Figure 3 A magnified view of part B in the diagram.

[0027] Figure 5 This is a schematic diagram of fixing the bearing end cover with bolts as mentioned in the background art of this invention.

[0028] The attached figures are labeled as follows: 1. End cap body; 11. Left end cap; 12. Right end cap; 13. Groove; 2. Snap ring; 21. Left snap ring; 211. Circular hole; 212. Limiting post; 213. Limiting groove; 22. Right snap ring; 221. Connecting cylinder; 222. Through hole; 223. Fixing pin; 23. Snap ring groove; 24. Fixing block; 25. Torsion spring; 3. Bearing seat; 31. Snap groove; 4. Bearing retaining ring; 41. Annular groove; 5. Sealing ring; 51. End cap sealing ring; 511. Opening; 512. Inner lip; 513. Outer lip; 52. Elastic element. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0030] Example 1

[0031] Reference Figures 1 to 4The present invention provides the following technical solution: a bearing anti-loosening sealing structure, including a retaining ring type end cap and a bearing seat 3. The retaining ring type end cap includes an end cap body 1 and a retaining ring 2. The end cap body 1 includes a left end cap 11 and a right end cap 12. The retaining ring 2 includes a left retaining ring 21 and a right retaining ring 22. The left end cap 11 and the right end cap 12 are respectively connected to the inner walls of the retaining ring and the right retaining ring 22. The inner walls of the left retaining ring 21 and the right retaining ring 22 can be provided with mounting grooves. The left end cap 11 and the right end cap 12 can be respectively inserted into the corresponding mounting grooves and fixedly installed. The inner wall of the bearing seat 3 is provided with a retaining groove 31, and the left retaining ring 21 and the right retaining ring 22 are used to insert into the retaining groove 31.

[0032] Preferably, both the left retaining ring 21 and the right retaining ring 22 have retaining ring grooves 23, which are located on opposite sides. A connecting cylinder 221 is fixedly connected to the retaining ring groove 23 of the right retaining ring 22, and a torsion spring 25 is fitted onto the connecting cylinder 221. A circular hole 211 is pre-drilled in the retaining ring groove 23 of the left retaining ring 21, through which the left retaining ring 21 is fitted onto the connecting cylinder 221. The torsion spring 25 is located between the left retaining ring 21 and the right retaining ring 22. Fixing blocks 24 are fixedly connected to the retaining ring grooves 23 of both the left retaining ring 21 and the right retaining ring 22, and the rods at both ends of the torsion spring 25 abut against the two... When the left retaining ring 21 and the right retaining ring 22 rotate toward each other on the fixing block 24, the two fixing blocks 24 can squeeze the rods at both ends of the torsion spring 25 to cause the torsion spring 25 to twist. When the force on the left retaining ring 21 and the right retaining ring 22 is removed, the elastic force of the torsion spring 25 can be applied to the two fixing blocks 24 through the rods at both ends, causing the left retaining ring 21 and the right retaining ring 22 to rotate away from each other. A through hole 222 is provided at the upper end of the connecting cylinder 221. A fixing pin 223 is inserted into the through hole 222. The fixing pin 223 is located on the side of the left retaining ring 21 away from the torsion spring 25. The fixing pin 223 can fix the left retaining ring 21 and the torsion spring 25 in the groove 13 of the right retaining ring 22.

[0033] Preferably, both ends of the left end cover 11 and the right end cover 12 are provided with grooves 13. When the left retaining ring 21 and the right retaining ring 22 are connected, the inner walls of the grooves 13 at the same end of the left end cover 11 and the right end cover 12 are coplanar and in contact. The grooves 13 are provided so that the two ends of the left end cover 11 and the right end cover 12 have overlapping areas, so that there will be no gap between the left end cover 11 and the right end cover 12 due to equipment vibration, thereby improving the sealing performance of the end cover.

[0034] Preferably, the bearing anti-loosening sealing structure further includes a bearing retaining ring 4. An annular groove 41 is provided on the outer wall of the bearing retaining ring 4. A sealing ring 5 is inserted into the annular groove 41. The sealing ring 5 includes an end cap sealing ring 51 and an elastic element 52. The elastic element 52 is a ring-shaped part made of elastic material, specifically elastic rubber. The end cap sealing ring 51 is at least flexible and can be selected as an elastic material as needed. An opening 511 is provided on the circumferential side wall of the end cap sealing ring 51. The elastic element 52 is inserted into the end cap sealing ring 51 through the opening 511.

[0035] Preferably, the two sides of the opening 511 of the end cap sealing ring 51 are divided into an inner lip 512 and an outer lip 513. The inner lip 512 is located near the bottom wall of the annular groove 41, and the outer lip 513 is located at the opening of the annular groove 41. In this embodiment, the inner lip 512 or the outer lip 513 of the end cap sealing ring 51 does not specifically refer to one side of the end cap sealing ring 51, but is determined according to the position of the end cap sealing ring 51 when it is installed. The inner lip 512 is located at the bottom wall of the annular groove 41, and the outer lip 513 is located at the opening of the annular groove 41. After the bearing retaining ring 4 and the end cap body 1 are installed and connected, the inner walls of the left end cap 11 and the right end cap 12 both compress the elastic element 52 and abut against the outer lip 513 of the end cap sealing ring 51. At the same time, the inner lip 512 abuts against the bottom wall of the annular groove 41, thereby forming a seal between the end cap body 1 and the bearing retaining ring 4.

[0036] To better achieve the objectives of the invention, this embodiment also provides an installation method for a bearing anti-loosening sealing structure, comprising the following steps:

[0037] S1. Place the torsion spring 25 on the connecting cylinder 221, with one end of the torsion spring 25 resting on the fixing block 24 of the right retaining ring 22. Then place the left retaining ring 21 on the connecting cylinder 221, with the other end of the torsion spring 25 resting on the fixing block 24 of the left retaining ring 21. Press the left retaining ring 21 to compress the torsion spring 25, exposing the through hole 222 on the connecting cylinder 221. Then insert the fixing pin 223 into the through hole 222 and loosen the left retaining ring 21.

[0038] S2. Press the left retaining ring 21 and the right retaining ring 22 to make them rotate in opposite directions, causing the torsion spring 25 to be twisted and causing the left end cover 11 and the right end cover 12 to rotate in opposite directions; then push the left retaining ring 21 and the right retaining ring 22 into the mounting groove on the bearing seat 3, so that the left retaining ring 21 and the right retaining ring 22 are aligned with the groove 31, and then loosen the left retaining ring 21 and the right retaining ring 22. The elastic force of the torsion spring 25 acts on the fixing block 24 of the left retaining ring 21 and the right retaining ring 22, driving the left retaining ring 21 and the right retaining ring 22 to rotate away from each other, so that the left retaining ring 21 and the right retaining ring 22 are inserted into the groove 31;

[0039] S3. Insert the elastic element 52 into the end cover sealing ring 51 through the opening 511 of the end cover sealing ring 51. Place the end cover sealing ring 51 into the annular groove 41, with the inner lip 512 located at the bottom wall of the annular groove 41 and the outer lip 513 located at the opening of the annular groove 41. Then connect the bearing into the mounting groove of the bearing seat 3 and place it on the main shaft of the equipment. Then place the bearing retaining ring 4 on the main shaft of the equipment, so that the bearing retaining ring 4 abuts against the bearing. At the same time, the left end cover 11 and the right end cover 12 press the elastic element 52 in the end cover sealing ring 51, so that the outer lip 513 of the end cover sealing ring 51 abuts against the inner wall of the left end cover 11 and the right end cover 12, and the inner lip 512 of the end cover sealing ring 51 abuts against the bottom wall of the annular groove 41.

[0040] When the end cover body 1 needs to be disassembled, first remove the bearing retaining ring 4 from the main shaft, and then use calipers to rotate the left retaining ring 21 and the right retaining ring 22 in opposite directions through the disassembly holes on the left retaining ring 21 and the right retaining ring 22. The left end cover 11 and the right end cover 12 will retract synchronously, and the left retaining ring 21 and the right retaining ring 22 can be removed from the retaining groove 31, thus completing the disassembly of the left end cover 11 and the right end cover 12.

[0041] Example 2

[0042] Reference Figure 2 Based on Example 1, the difference from Example 1 is as follows:

[0043] Two limiting posts 212 are provided on the side wall of the left retaining ring 21. The two limiting posts 212 are located on both sides of the circular hole 211. The limiting posts 212 are used to abut against the fixing pin 223 to limit the left retaining ring 21 and the right retaining ring 22.

[0044] Furthermore, a limiting groove 213 is provided on the side wall of the limiting post 212, which is used for the insertion of the two ends of the fixing pin 223. When the fixing pin 223 is inserted into the through hole 222, the two limiting posts 212 are respectively located on both sides of the fixing pin 223. After the fixing pin 223 is inserted, the left retaining ring 21 and the right retaining ring 22 are prevented from loosening. The torsional force of the torsion spring 25 will drive the left retaining ring 21 and the right retaining ring 22 to rotate away from each other. The fixing pin 223 and the two limiting posts 212 are driven to rotate relative to each other. The two ends of the fixing pin 223 extending out of the through hole 222 will be inserted into the limiting groove 213 and pressed against the inner wall of the limiting groove 213. The fixing pin 223 and the two limiting posts 212 will then stop rotating, and the left retaining ring 21 and the right retaining ring 22 will stop rotating.

[0045] Through the above technical solution, the mutual limiting of the fixing pin 223 and the two limiting posts 212 can restrict the relative position of the left retaining ring 21 and the right retaining ring 22, so as to prevent the torsional force of the torsion spring 25 from driving the left retaining ring 21 and the right retaining ring 22 to rotate continuously when the retaining ring end cap is idle, and to prevent the left retaining ring 21 and the right retaining ring 22 from opening excessively, so as to fix the relative position of the left retaining ring 21 and the right retaining ring 22, so as to facilitate the standardized storage of batches of retaining ring end caps, and at the same time reduce the rotation stroke when the left retaining ring 21 and the right retaining ring 22 rotate towards each other. The limiting groove 213 can limit the fixing pin 223, preventing the fixing pin 223 from coming out of the through hole 222.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bearing anti-loosening sealing structure, characterized in that, The device includes an end cap body (1) and a retaining ring (2). The retaining ring (2) is connected to the outer wall of the end cap body (1). The end cap body (1) includes a left end cap (11) and a right end cap (12). The retaining ring (2) includes a left retaining ring (21) and a right retaining ring (22). The left end cap (11) and the right end cap (12) are respectively connected to the inner walls of the retaining ring and the right retaining ring (22). The ends of the left retaining ring (21) and the right retaining ring (22) are rotatably connected. A torsion spring (25) is built into the rotatable connection between the left retaining ring (21) and the right retaining ring (22). The bearing anti-loosening sealing structure also includes a bearing seat (3), and a groove (31) is opened on the inner wall of the bearing seat (3). The groove (31) is annular, and the left retaining ring (21) and the right retaining ring (22) are inserted into the groove (31) and cooperate with the groove (31). Both the left retaining ring (21) and the right retaining ring (22) have retaining ring grooves (23) at their ends, and the retaining ring grooves (23) of the left retaining ring (21) and the right retaining ring (22) are located on opposite sides; a connecting cylinder (221) is provided in the retaining ring groove (23) of the right retaining ring (22), and the torsion spring (25) and the end of the left retaining ring (21) are fitted onto the connecting cylinder (221); a through hole (222) is provided on the connecting cylinder (221), and a fixing pin (223) is inserted into the through hole (222). The fixing pin (223) is used to limit the left retaining ring (21) and the torsion spring (25). A fixing block (24) is provided in each of the two retaining ring grooves (23), and the two ends of the torsion spring (25) abut against the two fixing blocks (24) respectively; The bearing anti-loosening sealing structure also includes a bearing retaining ring (4), an annular groove (41) is provided on the side wall of the bearing retaining ring (4), a sealing ring (5) is inserted in the annular groove (41), the sealing ring (5) is elastic, and the inner walls of the left end cover (11) and the right end cover (12) abut against the side wall of the sealing ring (5). The sealing ring (5) includes an end cap sealing ring (51) and an elastic element (52). Both the end cap sealing ring (51) and the elastic element (52) are annular. The end cap sealing ring (51) is located in the annular groove (41), and the elastic element (52) is located in the end cap sealing ring (51). The end cap sealing ring (51) has an opening (511) on its side wall for mounting and dismounting the elastic element (52). The two ends of the opening (511) of the end cap sealing ring (51) are divided into an inner lip (512) and an outer lip (513). The inner lip (512) is used to abut against the bearing retaining ring (4), and the outer lip (513) is used to abut against the left end cap (11) and the right end cap (12).

2. The bearing anti-loosening sealing structure according to claim 1, characterized in that, Both ends of the left end cap (11) and the right end cap (12) are provided with grooves (13). The grooves (13) of the left end cap (11) and the right end cap (12) are opened on opposite sides, and the inner walls of the grooves (13) at the same end of the left end cap (11) and the right end cap (12) are in contact with each other.

3. An installation method for a bearing anti-loosening seal structure, the installation method being based on the bearing anti-loosening seal structure of claim 2, characterized in that, The installation method includes the following steps: S1. Rotate the left retaining ring (21) and the right retaining ring (22) together, and connect the torsion spring (25) at the rotational connection between the left retaining ring (21) and the right retaining ring (22), so that the torsion spring (25) is located between the left retaining ring (21) and the right retaining ring (22); S2. Rotate and retract the left retaining ring (21) and the right retaining ring (22), and push the left retaining ring (21) and the right retaining ring (22) into the mounting groove of the bearing housing (3), and further insert the left retaining ring (21) and the right retaining ring (22) into the retaining groove (31) of the bearing housing (3); S3. Connect the bearing to the mounting groove of the bearing housing (3) and put it on the main shaft of the equipment. Then put the bearing retaining ring (4) on the main shaft of the equipment so that the bearing retaining ring (4) abuts against the bearing. The left end cover (11) and the right end cover (12) abut against the sealing ring (5).

4. The installation method for the bearing anti-loosening sealing structure according to claim 3, characterized in that, Step S1 specifically involves: Place the torsion spring (25) on the connecting cylinder (221), with one end of the torsion spring (25) resting on the fixing block (24) of the right retaining ring (22). Then place the left retaining ring (21) on the connecting cylinder (221), with the retaining ring groove (23) of the left retaining ring (21) facing the retaining ring groove (23) of the right retaining ring (22). Place the other end of the torsion spring (25) resting on the fixing block (24) of the left retaining ring (21). Press the left retaining ring (21) to compress the torsion spring (25), exposing the through hole (222) on the connecting cylinder (221). Then insert the fixing pin (223) into the through hole (222) and loosen the left retaining ring (21).

5. The installation method for the bearing anti-loosening sealing structure according to claim 3, characterized in that, Step S2 specifically involves: Press the left retaining ring (21) and the right retaining ring (22) to make them rotate in opposite directions, causing the torsion spring (25) to be twisted and causing the left end cap (11) and the right end cap (12) to rotate in opposite directions; then push the left retaining ring (21) and the right retaining ring (22) into the mounting groove on the bearing seat (3) so that the left retaining ring (21) and the right retaining ring (22) are aligned with the groove (31), and then loosen the left retaining ring (21) and the right retaining ring (22). The elastic force of the torsion spring (25) acts on the fixing block (24) of the left retaining ring (21) and the right retaining ring (22), driving the left retaining ring (21) and the right retaining ring (22) to rotate apart, thereby causing the left retaining ring (21) and the right retaining ring (22) to be inserted into the groove (31).

6. The installation method for the bearing anti-loosening sealing structure according to claim 3, characterized in that, Step S3 specifically involves: Before installing the bearing retainer ring (4), the elastic element (52) is inserted into the end cover seal ring (51) through the opening (511) of the end cover seal ring (51), and the end cover seal ring (51) is fitted into the annular groove (41), with the inner lip (512) located at the bottom wall of the annular groove (41) and the outer lip (513) located at the opening of the annular groove (41). After the bearing retainer ring (4) is installed, the left end cover (11) and the right end cover (12) press the elastic element (52) in the end cover seal ring (51), so that the outer lip (513) of the end cover seal ring (51) abuts against the inner wall of the left end cover (11) and the right end cover (12), and the inner lip (512) of the end cover seal ring (51) abuts against the bottom wall of the annular groove (41).

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