A clamping tooling for bearing maintenance and its usage method

Abstract

The present invention discloses a clamping tool for bearing maintenance and its usage method, which includes a bearing body. A housing is disposed in a fitting manner at the bottom end of the bearing body, and a first clamping groove is formed on the top surface of the housing. The bearing body can be placed and inserted into the first clamping groove. A clamping mechanism is arranged in the middle of the housing to clamp and limit the bearing body inserted into the first clamping groove through the clamping mechanism. A limit release mechanism is connected to the clamping mechanism to release the limit of the clamping mechanism on the bearing body through the limit release mechanism. By providing the clamping mechanism and the limit release mechanism, etc., it effectively avoids the problem that the existing fixtures fix the bearing by squeezing both sides of the outer wall of the bearing, and improper operation is likely to leave dents on the outer wall of the bearing, and even cause deformation of the inner wall of the bearing, greatly shortening the service life of the bearing, and improving the practicability of the device.

Description

Technical Field

[0001] The present invention relates to a clamping tool for bearing maintenance and its usage method. Background Art

[0002] A bearing is an important component in contemporary mechanical equipment. Its main function is to support a rotating mechanical body, reduce the friction coefficient during its movement, and ensure its rotational accuracy. The deep groove ball bearing is the most representative rolling bearing. Compared with other types of bearings of the same size, this type of bearing has a small friction coefficient, a high limiting speed, a simple structure, a low manufacturing cost, high precision, and does not require frequent maintenance. Moreover, it has a large size range and various forms, and is the most widely used type of bearing. It mainly bears radial loads and can also bear a certain axial load. When it only bears radial loads, the contact angle is zero;

[0003] In order to extend the service life of a bearing and increase its reliability, it is necessary to regularly change the lubricant to avoid the drying up of grease, and it is also necessary to regularly check the wear condition of the bearing. If it is found that the wear condition of the bearing is serious, it should be replaced in time. Regularly cleaning the bearing can also extend its service life. However, in actual use, since most deep groove ball bearings are circular rings, during the maintenance process, especially when regularly changing the lubricating oil, the bearing is likely to slip out of the hand, and it is necessary to use a fixture to fix the position of the bearing. Existing fixtures are all fixed by squeezing both sides of the outer wall of the bearing. Improper operation is likely to leave dents on the outer wall of the bearing and even cause deformation of the inner wall of the bearing, greatly shortening the service life of the bearing, and the practicality of the device is not strong. Therefore, we propose a clamping tool for bearing maintenance and its usage method. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a clamping tool for bearing maintenance and its usage method. By setting a clamping mechanism, a limiting release mechanism, etc., after the bearing body is placed inside the first card slot, the clamping mechanism cooperates with the inner wall of the housing to clamp the outer wall and the inner wall of the bearing body simultaneously, so as to achieve the purpose of sharing the clamping pressure on the outer wall of the bearing body, avoiding the problem that existing fixtures are all fixed by squeezing both sides of the outer wall of the bearing, and improper operation is likely to leave dents on the outer wall of the bearing and even cause deformation of the inner wall of the bearing, greatly shortening the service life of the bearing. After the maintenance of the bearing body is completed, the restriction is released through the limiting release mechanism, and then the bearing body can be taken out from inside the first card slot, improving the practicality of the device.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: A clamping tooling for bearing maintenance and its use method, including a bearing body. A housing is attached to the bottom end of the bearing body, and a first clamping groove is formed on the top surface of the housing. The bearing body can be placed and embedded into the first clamping groove. A clamping mechanism is arranged in the middle of the housing to clamp and limit the bearing body embedded in the first clamping groove. A limit release mechanism is connected to the clamping mechanism to release the limit of the clamping mechanism on the bearing body.

[0006] As a preferred technical solution of the present invention, the clamping mechanism includes a plurality of groups of first rotating shafts rotatably arranged on the top surface of the housing. A clamp is fixedly installed at the top end of the first rotating shaft, and the outer walls of the clamps are all set to be arc-shaped that can fit the inner wall surface of the bearing body.

[0007] Sleeve rings are sleeved on the surfaces of the first rotating shafts. A plurality of groups of rotating grooves are equidistantly formed on the outer wall surfaces of the sleeve rings, and second rotating shafts are integrally formed inside the rotating grooves. Tooth gears are sleeved on the surfaces of the second rotating shafts.

[0008] A rotating rod is rotatably arranged in the middle of the housing, and a toothed disc is sleeved on the surface of the rotating rod. The toothed discs can all mesh with the tooth gears. The first rotating shaft can only rotate in one direction under the limitation of the tooth gears, rotating grooves and toothed discs to fix the position of the clamp.

[0009] As a preferred technical solution of the present invention, the rotating rod is connected to the housing through a limit release mechanism. The limit release mechanism includes a limit rod arranged on the housing. The rotating rod is rotatably sleeved on the surface of the limit rod, and the toothed discs are all sleeved on the outer wall surface of the rotating rod. Preset grooves that cooperate with the outer wall of the toothed disc are formed on the bottom surfaces of a plurality of groups of clamps. Moving the rotating rod upward can drive the toothed disc to insert into the preset groove to release the meshing between the toothed disc and the tooth gear, and the first rotating shaft can drive the clamp to rotate in the reverse direction to release the limit.

[0010] As a preferred technical solution of the present invention, a knob is fixedly installed at the top end of the rotating rod, and a plurality of groups of grooves are equidistantly formed on the outer wall surface of the knob.

[0011] As a preferred technical solution of the present invention, a first spring is wound around the surface of the limit rod. One end of the first spring is attached to the inner wall surface of the rotating rod, and the other end is connected to the outer wall surface of the limit rod.

[0012] As a preferred technical solution of the present invention, a self-locking mechanism is provided inside the first card slot. The self-locking mechanism includes a carrier plate movably arranged inside the first card slot, and a first limiting ring is integrally formed on the outer surface of the carrier plate. A first lifting groove is formed on the outer wall surface of the first card slot near the first limiting ring, and a number of guide rods are fixedly installed inside the first lifting groove. The guide rods all penetrate through the surface of the first limiting ring and guide the movement of the first limiting ring inside the first lifting groove. A second spring is wound around the surface of the guide rod below the first limiting ring;

[0013] A second limiting ring is integrally formed on the inner surface of the carrier plate. A second lifting groove is formed on the outer wall surface of the first card slot near the second limiting ring, and a number of threaded rods are rotatably arranged inside the second lifting groove. The threaded rods all penetrate through the threaded holes formed on the surface of the second limiting ring and are meshed with each other. When the second limiting ring moves up and down, it can drive the threaded rods to rotate, and the tops of the threaded rods are all connected to the bottom ends of the first rotating shafts.

[0014] As a preferred technical solution of the present invention, a circular second card slot is formed on the bottom surface of the outer shell, and a socket is arranged on one side of the second card slot. A collection box can be inserted into the socket. A through hole is formed at the top end of the inner wall on the other side of the second card slot, and the position of the through hole corresponds to the position of the carrier plate. The socket and the other side of the second card slot are separated by a partition board.

[0015] As a preferred technical solution of the present invention, guide rails are integrally formed on both sides of the inner wall of the second card slot, and slots that cooperate with the guide rails are formed on both sides of the outer wall of the collection box. Guide rails are not provided on both sides of the inner wall of the socket, so that the collection box can be normally inserted into the socket.

[0016] As a preferred technical solution of the present invention, a number of straight slot holes are equidistantly arranged in a circular pattern on the top surface of the carrier plate.

[0017] The present invention also provides a technical solution, a method for using a clamping tool for bearing maintenance, and the specific steps are as follows:

[0018] S1. Move the bearing body so that the bearing body is placed inside the first card slot and carried on the top surface of the carrier plate;

[0019] S2. The carrier plate sinks under the action of the gravity of the bearing body, so that the carrier plate can drive the first limiting ring to move under the restriction of the guide rod and compress the second spring inside the first lifting groove. At the same time, the carrier plate drives the second limiting ring to descend and drives the threaded rods to rotate through the threads;

[0020] S3. As the threaded rods rotate, the threaded rods can drive the clamp to rotate through the first rotating shaft and fit on the inner surface of the bearing body. The clamp cooperates with the outer shell to clamp and limit the bearing body, which is convenient for maintenance;

[0021] S4. While the first rotating shaft rotates, it drives the collar to rotate. The collar drives the tooth through the second rotating shaft to rotate. The tooth pushes the tooth disc to rotate under the restriction of the rotating groove until the fixture stops rotating after fitting on the outer wall of the bearing body. Under the restriction of the tooth disc, the rotating groove and the tooth, the first rotating shaft cannot reverse, so the fixture cannot be removed from the outer wall of the bearing body, improving the clamping effect of the fixture.

[0022] S5. When it is necessary to take out the bearing body, pull the knob, so that the rotating rod drives the rotating rod to move on the surface of the limiting rod and compress the first spring, so that the rotating rod can drive the tooth disc to rise and insert into the preset groove opened under the fixture. The tooth disc no longer cooperates with the rotating groove and the tooth to restrict the position of the first rotating shaft. The first rotating shaft can normally drive the fixture to rotate to release the clamping of the bearing body. While the bearing body is taken out, the elastic deformation of the second spring is restored to push the carrying plate to automatically reset, so that the carrying plate drives the threaded rod to reverse through the second limiting ring, and the threaded rod drives the fixture to rotate through the first rotating shaft to release the limit.

[0023] S6. When maintenance is required, move the collection box, so that the collection box is inserted into the second card slot through the socket and rotates to the designated position under the restriction of the guide rail. The lubricating oil used for maintenance and the debris generated by maintenance fall into the first card slot through the straight slot holes opened on the surface of the carrying plate, and enter the collection box through the through holes opened at the bottom of the first card slot for collection.

[0024] Compared with the prior art, the beneficial effects that the present invention can achieve are:

[0025] 1. By setting the clamping mechanism and the unlocking mechanism, etc., it effectively avoids the problem that the existing fixtures are all fixed by squeezing both sides of the outer wall of the bearing. Improper operation is likely to leave dents on the outer wall of the bearing and even cause deformation of the inner wall of the bearing, greatly shortening the service life of the bearing. After the bearing body is placed in the first card slot, the clamping mechanism cooperates with the inner wall of the housing to clamp the outer wall and the inner wall of the bearing body at the same time to achieve the purpose of sharing the clamping pressure on the outer wall of the bearing body. After the maintenance of the bearing body is completed, the restriction is released through the unlocking mechanism, and the bearing body can be taken out from the first card slot, improving the practicability of the device.

[0026] 2. By setting the self-locking mechanism, etc., after the bearing body is placed in the first card slot, it can drive the self-locking mechanism to work by its own gravity. The self-locking mechanism drives the fixture to rotate through the first rotating shaft and fit on the inner surface of the bearing body. The fixture cooperates with the housing to clamp and limit the bearing body. When the bearing body is taken out from the first card slot, as the first card slot no longer applies pressure to the self-locking mechanism, the first rotating shaft can reverse and drive the fixture to automatically remove from the surface of the bearing body, so as to achieve the purpose of quickly clamping and limiting the bearing body and improve the convenience of the device. Brief Description of the Drawings

[0027] Figure 1 is the first three - dimensional structure schematic diagram of the present invention;

[0028] Figure 2 is the three - dimensional sectional structure schematic diagram of the present invention;

[0029] Figure 3 is the second three - dimensional structure schematic diagram of the present invention;

[0030] Figure 4 is the front - view sectional structure schematic diagram of the present invention;

[0031] Figure 5 is the top - view sectional structure schematic diagram of the position of the toothed disc of the present invention;

[0032] Figure 6 is the top - view sectional structure schematic diagram of the position of the mounting plate of the present invention;

[0033] Figure 7 is the Figure 2 enlarged schematic diagram of the structure at A in the present invention;

[0034] Figure 8 is the Figure 2 enlarged schematic diagram of the structure at B in the present invention;

[0035] Figure 9 is the Figure 2 enlarged schematic diagram of the structure at C in the present invention;

[0036] Figure 10 is the Figure 5 enlarged schematic diagram of the structure at D in the present invention.

[0037] Wherein: 1, bearing body; 21, outer shell; 22, first card slot; 23, first rotating shaft; 24, collar; 25, second rotating shaft; 26, teeth; 27, rotating groove; 28, toothed disc; 3, fixture; 41, rotating rod; 42, turning knob; 43, limiting rod; 44, first spring; 45, preset groove; 51, mounting plate; 52, first limiting ring; 53, first lifting groove; 54, guiding rod; 55, second spring; 56, second limiting ring; 57, second lifting groove; 58, threaded rod; 61, second card slot; 62, socket; 63, collection box; 64, guide rail. Detailed Embodiments

[0038] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments are all conventional methods unless otherwise specified. The materials, reagents, etc. used in the following embodiments can all be obtained from commercial channels unless otherwise specified.

[0039] Embodiment:

[0040] As Figure 1 - Figure 10 As shown, this embodiment proposes a clamping tool for bearing maintenance, including a bearing body 1. A housing 21 is attached to the bottom end of the bearing body 1, and a first clamping groove 22 is formed on the top surface of the housing 21. The bearing body 1 can be placed and embedded inside the first clamping groove 22. A clamping mechanism is arranged in the middle of the housing 21 to clamp and limit the bearing body 1 embedded inside the first clamping groove 22 through the clamping mechanism. A limit release mechanism is connected to the clamping mechanism to release the limit of the clamping mechanism on the bearing body 1 through the limit release mechanism;

[0041] When it is necessary to clamp and limit the bearing body 1 for maintenance, first place the bearing body 1 inside the first clamping groove 22, and clamp the outer wall and inner wall of the bearing body 1 simultaneously through the cooperation of the clamping mechanism and the inner wall of the housing 21 to achieve the purpose of sharing the clamping pressure on the outer wall of the bearing body 1. After the maintenance of the bearing body 1 is completed, the limit is released through the limit release mechanism, and the bearing body 1 can be taken out from inside the first clamping groove 22, improving the practicability of the device;

[0042] Among them, the clamping mechanism includes a plurality of groups of first rotating shafts 23 rotatably arranged on the top surface of the housing 21, and a clamp 3 is fixedly installed at the top end of the first rotating shaft 23. The outer walls of the clamps 3 are all set to be arc-shaped that can fit the inner wall surface of the bearing body 1;

[0043] Sleeve rings 24 are sleeved on the surfaces of the first rotating shafts 23. A plurality of groups of rotating grooves 27 are equidistantly arranged on the outer wall surfaces of the sleeve rings 24, and second rotating shafts 25 are integrally formed inside the rotating grooves 27. Tooth profiles 26 are sleeved on the surfaces of the second rotating shafts 25;

[0044] A rotating rod 41 is rotatably arranged in the middle of the housing 21, and a toothed disk 28 is sleeved on the surface of the rotating rod 41. The toothed disks 28 can all be meshed with the tooth profiles 26. The first rotating shafts 23 can only rotate in one direction to fix the positions of the clamps 3 under the restrictions of the tooth profiles 26, the rotating grooves 27 and the toothed disks 28;

[0045] When it is necessary to fix the position of the bearing body 1, by rotating the gear disk 28, the gear disk 28 contacts the teeth 26 and pushes the teeth 26 to rotate. The teeth 26 drive the collar 24 to rotate through the second rotating shaft 25 and the rotating groove 27, so that the collar 24 can drive the fixture 3 to rotate through the first rotating shaft 23 and fit on the inner wall surface of the bearing body 1. The fixture 3 and the outer shell 21 cooperate to clamp and limit the inner and outer side surfaces of the bearing body 1 respectively.

[0046] The rotating rod 41 is connected to the outer shell 21 through a limit release mechanism. The limit release mechanism includes a limit rod 43 provided on the outer shell 21, and the rotating rod 41 is rotatably sleeved on the surface of the limit rod 43. The gear disks 28 are all sleeved on the outer wall surface of the rotating rod 41. A preset groove 45 that cooperates with the outer wall of the gear disk 28 is opened on the bottom surface of several groups of fixtures 3. Moving the rotating rod 41 upward can drive the gear disk 28 to insert into the preset groove 45 to release the meshing between the gear disk 28 and the teeth 26, and the first rotating shaft 23 can drive the fixture 3 to rotate in the reverse direction to release the limit.

[0047] When it is necessary to release the restriction on the position of the fixture 3, by pulling the rotating rod 41, the rotating rod 41 drives the gear disk 28 to rise under the restriction of the limit rod 43. As the gear disk 28 rises, the gear disk 28 no longer meshes with the teeth 26, and the gear disk 28 no longer cooperates with the teeth 26 and the rotating groove 27 to restrict the position of the first rotating shaft 23. The first rotating shaft 23 can normally reverse and drive the fixture 3 to disengage from the inner wall of the bearing body 1. The bearing body 1 after maintenance can be taken out normally. Since the preset groove 45 is opened at the bottom end of the fixture 3, the gear disk 28 can be inserted into the preset groove 45 after being lifted, so it will not affect the rotation of the fixture 3. After the fixture 3 is released from the limit, push the rotating rod 41 to drive the gear disk 28 to reset. After the gear disk 28 meshes with the teeth 26 again, another bearing body 1 can be placed for maintenance.

[0048] In order to enable the staff to alternately hold and pull the rotating rod 41 to adjust the position of the gear disk 28, a knob 42 is fixedly installed at the top end of the rotating rod 41. A number of groups of grooves are equidistantly arranged around the outer wall surface of the knob 42. Through this design, the staff can pull the rotating rod 41 through the limit rod 43, and when pulling the knob 42, the fingers can sink between the grooves provided on the surface of the knob 42, and the contact area between the fingers and the knob 42 is increased, so as to increase the friction generated when pulling the knob 42 and achieve the effect of preventing slipping.

[0049] In order to enable the rotating rod 41 to drive the toothed disc 28 to automatically reset after lifting under the restriction of the limiting rod 43, a first spring 44 is wound around the surface of the limiting rod 43. One end of the first spring 44 is attached to the inner wall surface of the rotating rod 41, and the other end is connected to the outer wall surface of the limiting rod 43. Through this design, when the staff no longer pulls the rotating rod 41, the first spring 44 that is compressed in cooperation with the limiting rod 43 when pulling the rotating rod 41 can recover from elastic deformation and push the toothed disc 28 to automatically reset through the rotating rod 41. Moreover, since the first spring 44 is not directly connected to the rotating rod 41, it will not affect the rotation of the rotating rod 41 and the toothed disc 28.

[0050] In order to be able to quickly clamp and limit the bearing body 1, a self-locking mechanism is arranged inside the first card slot 22. The self-locking mechanism includes a carrier plate 51 movably arranged inside the first card slot 22, and a first limiting ring 52 is integrally formed on the outer surface of the carrier plate 51. A first lifting groove 53 is opened on the outer wall surface of the first card slot 22 close to the first limiting ring 52, and a number of guide rods 54 are fixedly installed inside the first lifting groove 53. The guide rods 54 all penetrate the surface of the first limiting ring 52 and guide the movement of the first limiting ring 52 inside the first lifting groove 53. A second spring 55 is wound around the surface of the guide rod 54 below the first limiting ring 52;

[0051] A second limiting ring 56 is integrally formed on the inner surface of the carrier plate 51. A second lifting groove 57 is opened on the outer wall surface of the first card slot 22 close to the second limiting ring 56, and a number of threaded rods 58 are rotatably arranged inside the second lifting groove 57. The threaded rods 58 all penetrate the threaded holes opened on the surface of the second limiting ring 56 and are meshed with them. When the second limiting ring 56 moves up and down, it can drive the threaded rods 58 to rotate. The tops of the threaded rods 58 are all connected to the bottom ends of the first rotating shafts 23;

[0052] After the bearing body 1 is placed inside the first card slot 22 and carried on the top surface of the carrier plate 51, the carrier plate 51 sinks under the action of the gravity of the bearing body 1, so that the carrier plate 51 can drive the first limiting ring 52 to move under the restriction of the guide rods 54 and compress the second spring 55 inside the first lifting groove 53. At the same time, the carrier plate 51 drives the second limiting ring 56 to descend and drives the threaded rods 58 to rotate through the threads. As the threaded rods 58 rotate, the threaded rods 58 can drive the clamp 3 to rotate through the first rotating shaft 23 and fit on the inner surface of the bearing body 1. The clamp 3 cooperates with the outer shell 21 to clamp and limit the bearing body 1, which is convenient for maintenance;

[0053] When the bearing body 1 is taken out from inside the first card slot 22, as the first card slot 22 no longer applies pressure to the self-locking mechanism, the first rotating shaft 23 can reverse and drive the clamp 3 to automatically remove from the surface of the bearing body 1, and the limit of the clamp 3 on the bearing body 1 is released, improving the convenience of the device.

[0054] In order to collect the lubricating oil that drips or the debris and sundries that fall during the maintenance process, a circular second card slot 61 is provided on the bottom surface of the outer shell 21, and a socket 62 is provided on one side of the second card slot 61. A collection box 63 can be inserted into the socket 62. A through hole is provided at the top of the inner wall on the other side of the second card slot 61, and the position of the through hole corresponds to the position of the carrier plate 51. The socket 62 and the other side of the second card slot 61 are separated by a partition board;

[0055] When the collection box 63 needs to be installed, by moving the collection box 63, the collection box 63 is inserted into the second card slot 61 through the socket 62, and under the restriction of the guide rail 64, it is rotated to a specified position. The lubricating oil used for maintenance and the debris generated during maintenance enter the collection box 63 through the through hole provided at the bottom of the first card slot 22 for collection.

[0056] In order to improve the stability of the installation of the collection box 63, guide rails 64 are integrally formed on both sides of the inner wall of the second card slot 61. Slots that cooperate with the guide rails 64 are provided on both sides of the outer wall of the collection box 63. Guide rails 64 are not provided on both sides of the inner wall of the socket 62. Through this design, the collection box 63 can be normally inserted into the socket 62, and then the collection box 63 is rotated, so that the collection box 63 drives the slots on both sides to be sleeved on the surface of the guide rail 64 under the guidance of the second card slot 61. The guide rail 64 cooperates with the slot to guide and restrict the position of the collection box 63, so that the collection box 63 can be installed more firmly.

[0057] A number of groups of straight slot holes are equidistantly and circularly provided on the top surface of the carrier plate 51. Through this design, the lubricating oil that drips or the debris and sundries that fall during the maintenance process of the bearing body 1 can fall to the bottom of the first card slot 22 through the straight slot holes provided on the surface of the carrier plate 51 and wait to be collected by the collection box 63.

[0058] The usage method of the clamping tool for bearing maintenance is as follows:

[0059] S1. Move the bearing body 1 so that the bearing body 1 is placed inside the first card slot 22 and carried on the top surface of the carrier plate 51;

[0060] S2. The carrier plate 51 sinks under the action of the gravity of the bearing body 1, so that the carrier plate 51 can drive the first limiting ring 52 to move under the restriction of the guide rod 54 and squeeze the second spring 55 inside the first lifting slot 53. At the same time, the carrier plate 51 drives the second limiting ring 56 to descend and drives the threaded rod 58 to rotate through the thread;

[0061] S3. As the threaded rod 58 rotates, the threaded rod 58 can drive the clamp 3 to rotate through the first rotating shaft 23 and fit on the inner surface of the bearing body 1. The clamp 3 cooperates with the outer shell 21 to clamp and limit the bearing body 1, which is convenient for maintenance.

[0062] S4. While the first rotating shaft 23 rotates, it drives the collar 24 to rotate, causing the collar 24 to drive the tooth 26 to rotate through the second rotating shaft 25. The tooth 26 pushes the tooth disk 28 to rotate under the restriction of the rotating groove 27 until the fixture 3 stops rotating after fitting against the outer wall of the bearing body 1. Under the restriction of the tooth disk 28, the rotating groove 27 and the tooth 26, the first rotating shaft 23 cannot reverse, so the fixture 3 cannot be removed from the outer wall of the bearing body 1, improving the clamping effect of the fixture 3.

[0063] S5. When the bearing body 1 needs to be taken out, pull the knob 42, causing the rotating rod 41 to drive the rotating rod 41 to move on the surface of the limiting rod 43 and compress the first spring 44, enabling the rotating rod 41 to drive the tooth disk 28 to rise and insert into the preset groove 45 opened below the fixture 3. The tooth disk 28 no longer cooperates with the rotating groove 27 and the tooth 26 to restrict the position of the first rotating shaft 23, and the first rotating shaft 23 can normally drive the fixture 3 to rotate to release the clamping of the bearing body 1. When the bearing body 1 is taken out, the elastic deformation of the second spring 55 recovers to push the carrier plate 51 to automatically reset, causing the carrier plate 51 to drive the threaded rod 58 to reverse through the second limiting ring 56, and the threaded rod 58 drives the fixture 3 to rotate through the first rotating shaft 23 to release the limit.

[0064] S6. When maintenance is required, move the collection box 63, causing the collection box 63 to be inserted into the second card slot 61 through the socket 62 and rotate to the designated position under the restriction of the guide rail 64. The lubricating oil used for maintenance and the debris generated during maintenance fall into the first card slot 22 through the straight slot holes opened on the surface of the carrier plate 51 and enter the collection box 63 through the through holes opened at the bottom of the first card slot 22 for collection.

[0065] In the present invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0066] The above has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not restricted by the above-mentioned embodiments. The above-mentioned embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping tooling for bearing maintenance, including a bearing body, characterized in that: A housing is provided in a fitting manner at the bottom end of the bearing body, and a first clamping groove is formed on the top surface of the housing. The bearing body can be placed and inserted into the first clamping groove. A clamping mechanism is arranged in the middle of the housing to clamp and limit the bearing body inserted into the first clamping groove through the clamping mechanism. A limit release mechanism is connected to the clamping mechanism to release the limit of the clamping mechanism on the bearing body through the limit release mechanism. The clamping mechanism includes a plurality of groups of first rotating shafts rotatably arranged on the top surface of the housing, and a clamp is fixedly installed at the top end of the first rotating shaft. The outer walls of the clamps are all set to be arc-shaped that can fit the inner wall surface of the bearing body; sleeve rings are sleeved on the surfaces of the first rotating shafts, and a plurality of groups of rotating grooves are equidistantly formed on the outer wall surfaces of the sleeve rings. Second rotating shafts are integrally formed in the rotating grooves, and toothed teeth are sleeved on the surfaces of the second rotating shafts; a rotating rod is rotatably arranged in the middle of the housing, and a toothed disk is sleeved on the surface of the rotating rod. The toothed disks can be meshed with the toothed teeth. The first rotating shaft can only rotate in one direction under the limitation of the toothed teeth, the rotating grooves and the toothed disk to fix the position of the clamp. A self-locking mechanism is arranged inside the first clamping groove. The self-locking mechanism includes a carrying plate movably arranged inside the first clamping groove, and a first limiting ring is integrally formed on the outer side surface of the carrying plate. A first lifting groove is formed on the outer wall surface of the first clamping groove close to the first limiting ring, and a plurality of groups of guide rods are fixedly installed inside the first lifting groove. The guide rods all penetrate the surface of the first limiting ring and guide the movement of the first limiting ring inside the first lifting groove. A second spring is wound around the surface of the guide rod below the first limiting ring; a second limiting ring is integrally formed on the inner side surface of the carrying plate. A second lifting groove is formed on the outer wall surface of the first clamping groove close to the second limiting ring, and a plurality of groups of threaded rods are rotatably arranged inside the second lifting groove. The threaded rods all penetrate the threaded holes formed on the surface of the second limiting ring and are meshed with them. The second limiting ring can drive the threaded rods to rotate when lifting. The top ends of the threaded rods are all connected to the bottom ends of the first rotating shafts. A circular second clamping groove is formed on the bottom surface of the housing, and a socket is arranged on one side of the second clamping groove. A collecting box can be inserted into the socket. A through hole is formed at the top end of the inner wall on the other side of the second clamping groove, and the position of the through hole corresponds to the position of the carrying plate. The socket and the other side of the second clamping groove are separated by a partition. Guide rails are integrally formed on both sides of the inner wall of the second clamping groove. Slots that are matched with the guide rails are formed on both sides of the outer wall of the collecting box. No guide rails are arranged on both sides of the inner wall of the socket, so that the collecting box can be normally inserted into the socket. A plurality of groups of straight slot holes are equidistantly formed on the top surface of the carrying plate.

2. The clamping tooling for bearing maintenance according to claim 1, characterized in that: The rotating rod is connected to the housing through a limit release mechanism. The limit release mechanism includes a limiting rod arranged on the housing, and the rotating rod is rotatably sleeved on the surface of the limiting rod. The toothed disks are all sleeved on the outer wall surface of the rotating rod. Preset grooves that are matched with the outer wall of the toothed disk are formed on the bottom surfaces of a plurality of groups of clamps. Moving the rotating rod upward can drive the toothed disk to insert into the preset grooves to release the meshing between the toothed disk and the toothed teeth, and the first rotating shaft can drive the clamp to rotate in the reverse direction to release the limit.

3. The clamping tool for bearing maintenance according to claim 2, wherein: A knob is fixedly installed at the top end of the rotating rod, and a plurality of groups of grooves are equidistantly formed on the outer wall surface of the knob.

4. The clamping tooling for bearing maintenance according to claim 3, characterized in that: A first spring is wound around the surface of the limit rod. One end of the first spring is attached to the inner wall surface of the rotating rod, and the other end is connected to the outer wall surface of the limit rod.

5. The method for using a clamping tool for bearing maintenance according to claim 4, characterized in that: S1. Move the bearing body so that the bearing body is placed inside the first card slot and carried on the top surface of the carrier plate; S2. The carrier plate sinks under the action of the gravity of the bearing body, so that the carrier plate can drive the first limit ring to move under the restriction of the guide rod and compress the second spring inside the first lifting groove. At the same time, the carrier plate drives the second limit ring to descend and drives the threaded rod to rotate through the thread; S3. As the threaded rod rotates, the threaded rod can drive the clamp to rotate through the first rotating shaft and fit on the inner surface of the bearing body. The clamp cooperates with the outer shell to clamp and limit the bearing body, facilitating maintenance; S4. While the first rotating shaft rotates, it drives the collar to rotate, so that the collar drives the tooth to rotate through the second rotating shaft. The tooth pushes the tooth disc to rotate under the restriction of the rotating groove until the clamp fits on the outer wall of the bearing body and then stops rotating. Under the restriction of the tooth disc, the rotating groove and the tooth, the first rotating shaft cannot reverse, so the clamp cannot be removed from the outer wall of the bearing body, improving the clamping effect of the clamp; S5. When it is necessary to take out the bearing body, pull the knob so that the rotating rod drives the rotating rod to move on the surface of the limit rod and compress the first spring, so that the rotating rod can drive the tooth disc to rise and insert into the preset groove opened below the clamp. The tooth disc no longer cooperates with the rotating groove and the tooth to limit the position of the first rotating shaft. The first rotating shaft can normally drive the clamp to rotate to release the clamping of the bearing body. When the bearing body is taken out, the elastic deformation of the second spring is restored to push the carrier plate to automatically reset, so that the carrier plate drives the threaded rod to reverse through the second limit ring, and the threaded rod drives the clamp to rotate through the first rotating shaft to release the limit; S6. When maintenance is required, move the collection box so that the collection box is inserted into the second card slot through the socket and rotates to the designated position under the restriction of the guide rail. The lubricating oil used for maintenance and the debris generated by maintenance fall into the first card slot through the straight groove holes opened on the surface of the carrier plate and enter the collection box through the through holes opened at the bottom of the first card slot for collection.

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