A bearing transmission device for large precision machine tools and its use method

Abstract

The present invention discloses a bearing transmission device for large precision machine tools and a method for using the same, comprising a bearing outer ring, an inner cavity of the bearing outer ring being provided with a bearing inner ring, a rolling body being provided between the bearing outer ring and the bearing inner ring, a transmission rod being provided with a first movable groove at the top and bottom of the transmission rod, a movable block being provided in the inner cavity of the first movable groove, a second movable groove being provided on the side away from the two movable blocks, and a snap-fit ​​frame being movably connected in the inner cavity of the second movable groove. The present invention supports the transmission rod and reduces the friction coefficient during its movement by cooperating with the bearing outer ring, the bearing inner ring and the rolling body, achieves the effect of facilitating the movement of the movable block by providing the first movable groove, and plays the role of placing and fixing the first spring by providing the movable block, thereby avoiding the situation that the first spring is offset during use.

Description

Technical Field

[0001] The present invention relates to the technical field of machine tool bearings, and in particular to a bearing transmission device for large precision machine tools and a use method thereof. Background Art

[0002] Bearings are an important component in contemporary mechanical equipment. Their main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotation accuracy. In various large-scale lifting equipment, from support structures weighing thousands of tons to joint hinges with a diameter of several centimeters, different types of bearings are required. Various bearing types have unique characteristics due to their design. Each bearing type is designed according to specific bearing application requirements. Improper replacement may shorten the service life and affect the normal function of the machine equipment. Therefore, it is very important to select appropriate bearings according to the different environments and working conditions of the equipment. At the same time, the installation, disassembly, lubrication and maintenance of bearings are also worthy of attention.

[0003] Bearing transmission devices are used in the use of large precision machine tools. However, the existing bearing transmission devices for large precision machine tools have a relatively simple structure and are increasingly unable to meet the use requirements of the machinery. At the same time, the fixing method of the bearing transmission device is single, which makes it inconvenient for workers to install or disassemble the transmission device. The operation is cumbersome, which increases the labor intensity of the workers. Summary of the invention

[0004] The purpose of the present invention is to provide a bearing transmission device for large precision machine tools and a method of using the same, which has the advantage of being easy to install and disassemble, and solves the problem that the existing bearing transmission device for large precision machine tools has a relatively simple structure and is increasingly unable to meet the use requirements of the machinery. At the same time, the fixing method of the bearing transmission device is single, which makes it inconvenient for workers to install or disassemble the transmission device, the operation is cumbersome, and the labor intensity of the workers is increased.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A bearing transmission device for a large precision machine tool comprises a bearing outer ring, an inner cavity of the bearing outer ring is provided with a bearing inner ring, a rolling body is provided between the bearing outer ring and the bearing inner ring, a transmission rod is provided with a transmission rod in the inner cavity, a first movable groove is provided at the top and bottom of the transmission rod, a movable block is provided in the inner cavity of the first movable groove, a second movable groove is provided on the side away from the two movable blocks, the inner cavity of the second movable groove is movably connected with a snap-fit ​​frame, the inner wall of the second movable groove is fixedly connected with a first spring, one end of the first spring away from the inner cavity of the second movable groove is fixedly connected with the snap-fit ​​frame, driving the first limiting groove to be provided on both sides of the inner cavity of the second movable groove, the inner cavity of the first limiting groove is movably connected with a first limiting block, and the side of the first limiting block away from the inner cavity of the first limiting groove is fixedly connected with the snap-fit ​​frame.

[0006] Preferably, second limiting grooves are provided on both sides of the inner cavity of the first movable groove, the inner cavity of the second limiting groove is movably connected to a second limiting block, and the side of the second limiting block away from the inner cavity of the second limiting groove is fixedly connected to the movable block.

[0007] Preferably, the adjacent sides of the two movable blocks are fixedly connected with a support plate, and the adjacent sides of the inner cavities of the two first movable grooves are provided with a sliding groove.

[0008] Preferably, the inner cavity of the slide groove is slidably connected with a pulley, and the side of the pulley away from the inner cavity of the slide groove is fixedly connected to the support plate.

[0009] Preferably, a fixing plate is fixedly connected to the top and bottom of the transmission rod and located on the front side of the inner ring of the bearing, and a movable plate is movably connected to the inner cavity of the fixing plate.

[0010] Preferably, third limiting grooves are provided on both sides of the inner cavity of the fixed plate, the inner cavity of the third limiting groove is movably connected with a third limiting block, and the side of the third limiting block away from the inner cavity of the third limiting groove is fixedly connected to the movable plate.

[0011] Preferably, a second spring is fixedly connected to the front side of the third limiting block, and the other end of the second spring is fixedly connected to the inner wall of the third limiting groove.

[0012] Preferably, the top and the bottom of the inner cavity of the bearing inner ring are both provided with clamping holes, and one end of the clamping frame extends to the inner cavity of the clamping hole.

[0013] Preferably, the method of use comprises the following steps:

[0014] A. When the transmission rod needs to be installed inside the inner ring of the bearing, first press the front end of the engaging frame inward, and the front end of the engaging frame drives the rear end to move downward. When the engaging frame moves downward, it squeezes the first spring and deforms the first spring. At the same time, the engaging frame drives the first limiting block to move downward inside the first limiting groove, so as to limit the engaging frame. Then, the engaging frame is pushed to move the rear end of the engaging frame to the inside of the inner ring of the bearing. When the rear end of the engaging frame contacts the clamping hole, the front end of the engaging frame is released. Then, the restoring elastic force of the first spring drives the engaging frame to move upward, so that the rear end of the engaging frame moves to the inside of the clamping hole and clamps with the clamping hole.

[0015] B. When the locking frame is pushed to move, the locking frame drives the first limit block to move inside the first limit slot, and the first limit block drives the movable block to move. When the movable block moves, it drives the second limit block to move inside the second limit slot, so as to limit the movable block. At the same time, the movable block drives the support plate to move, and the support plate drives the pulley to slide inside the slide slot, so as to reduce the friction between the movable block and the transmission rod when moving, so that the staff can move the rear end of the locking frame to the inside of the clamping hole for clamping;

[0016] C. When the rear end of the locking frame moves and locks with the locking hole, the return elastic force of the second spring pushes the third limit block to move, and the third limit block drives the movable plate to move toward the locking frame and fit into the locking frame, thereby protecting the interior of the first movable groove from dust. At the same time, the second spring drives the third limit block to move inside the third limit groove, thereby limiting the movable plate;

[0017] D. When the transmission rod needs to be removed from the inner ring of the bearing, first press the front end of the engaging frame, which drives the rear end to move inside the engaging hole and separates the rear end of the engaging frame from the inner hole. Then push the front end of the engaging frame outward, which drives the rear end to move, so that the rear end of the engaging frame is separated from the inner ring of the bearing. Then push the transmission rod and pull it out from the inner ring of the bearing, so that the transmission rod is removed from the inner ring of the bearing.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention is used to support the transmission rod through the cooperation of the bearing outer ring, the bearing inner ring and the rolling body, so as to reduce the friction coefficient during the movement of the transmission rod. By setting the first movable groove, the effect of facilitating the movement of the movable block is achieved. By setting the movable block, the first spring is placed and fixed, so as to avoid the first spring from being offset during use. By setting the clamping frame, the transmission rod is clamped and fixed inside the bearing inner ring in cooperation with the clamping hole, so as to facilitate the installation and removal of the transmission rod by the staff. By setting the first spring, the clamping frame can be reset by the reset elastic force of the first spring, so as to facilitate the clamping and fixing of the clamping frame and the clamping hole. By the cooperation of the first limiting groove and the first limiting block, the clamping frame is limited in the process of pressing and moving, so as to avoid the clamping frame from being offset during use and causing the clamping frame to fall. The existing bearing transmission device for large precision machine tools has a relatively simple structure and can no longer meet the use requirements of the machine. At the same time, the fixing method of the bearing transmission device is single, which is inconvenient for the staff to install or disassemble the transmission device, and the operation is cumbersome, which increases the labor intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the exploded structure of the transmission rod and the engaging frame of the present invention;

[0022] Figure 3 It is a schematic diagram of the exploded structure of the transmission rod, the movable block and the support plate of the present invention;

[0023] Figure 4 It is a schematic diagram of the exploded structure of the fixed plate and the movable plate of the present invention;

[0024] Figure 5 It is a schematic diagram of the cross-sectional structure of the inner ring of the bearing of the present invention;

[0025] Figure 6 For the present invention Figure 2 A magnified view of the local structure at point A.

[0026] In the figure: 1. outer ring of bearing; 2. inner ring of bearing; 3. rolling element; 4. transmission rod; 5. first movable groove; 6. movable block; 7. second movable groove; 8. engaging frame; 9. first spring; 10. first limiting groove; 11. first limiting block; 12. second limiting groove; 13. second limiting block; 14. supporting plate; 15. slide groove; 16. pulley; 17. fixed plate; 18. movable plate; 19. third limiting groove; 20. third limiting block; 21. second spring; 22. engaging hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The bearing outer ring 1, bearing inner ring 2, rolling body 3, transmission rod 4, first movable groove 5, movable block 6, second movable groove 7, locking frame 8, first spring 9, first limit groove 10, first limit block 11, second limit groove 12, second limit block 13, support plate 14, slide groove 15, pulley 16, fixed plate 17, movable plate 18, third limit groove 19, third limit block 20, second spring 21 and locking hole 22 components of the present invention are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods.

[0029] See also Figure 1-6A bearing transmission device for a large precision machine tool comprises a bearing outer ring 1, a bearing inner ring 2 is arranged in the inner cavity of the bearing outer ring 1, a rolling body 3 is arranged between the bearing outer ring 1 and the bearing inner ring 2, a transmission rod 4 is arranged in the inner cavity of the rolling body 3, a first movable groove 5 is provided at the top and bottom of the transmission rod 4, a movable block 6 is provided in the inner cavity of the first movable groove 5, a second movable groove 7 is provided on the side away from the two movable blocks 6, a clamping frame 8 is movably connected to the inner cavity of the second movable groove 7, and a first movable groove 7 is fixedly connected to the inner wall of the second movable groove 7. A spring 9, one end of the first spring 9 away from the inner cavity of the second movable groove 7 is fixedly connected to the snap-fit ​​frame 8, driving the first limiting groove 10 to be opened on both sides of the inner cavity of the second movable groove 7, the inner cavity of the first limiting groove 10 is movably connected with a first limiting block 11, and the first limiting block 11 is fixedly connected to the snap-fit ​​frame 8 on the side away from the inner cavity of the first limiting groove 10, and is used to support the transmission rod 4 through the cooperation of the bearing outer ring 1, the bearing inner ring 2 and the rolling body 3, so as to reduce the friction coefficient during its movement. By setting the first movable groove 5, it is easy to The movable block 6 has the effect of moving. By setting the movable block 6, the first spring 9 is placed and fixed, and the position displacement of the first spring 9 is avoided during use. By setting the engaging frame 8, the transmission rod 4 is engaged and fixed to the inside of the bearing inner ring 2 in cooperation with the engaging hole 22, so as to facilitate the staff to install and disassemble the transmission rod 4. By setting the first spring 9, the engaging frame 8 can be reset by the reset elastic force of the first spring 9, so as to facilitate the engaging and fixing of the engaging frame 8 and the engaging hole 22. Through the cooperation of the first limiting groove 10 and the first limiting block 11, the engaging frame 8 is limited during the pressing and moving process, and the position displacement of the engaging frame 8 during use is avoided, resulting in the engaging frame 8 falling off. The existing bearing transmission device for large precision machine tools has a relatively simple structure and can no longer meet the use requirements of the machine. At the same time, the fixing method of the bearing transmission device is single, which is inconvenient for the staff to install or disassemble the transmission device, and the operation is cumbersome, which increases the labor intensity of the staff.

[0030] Specifically, second limiting grooves 12 are provided on both sides of the inner cavity of the first movable groove 5, and the inner cavity of the second limiting groove 12 is movably connected with a second limiting block 13. The second limiting block 13 is fixedly connected to the movable block 6 on the side away from the inner cavity of the second limiting groove 12. Through the cooperation of the second limiting groove 12 and the second limiting block 13, the movable block 6 is limited when it moves, thereby avoiding the position displacement of the movable block 6 during the movement.

[0031] Specifically, the sides of the two movable blocks 6 that are close to each other are fixedly connected with support plates 14, and the sides of the inner cavities of the two first movable grooves 5 that are close to each other are provided with sliding grooves 15. By setting the support plates 14, the movable blocks 6 are supported, thereby improving the stability of the movable blocks 6 during movement.

[0032] Specifically, the inner cavity of the slide groove 15 is slidably connected with a pulley 16, and the side of the pulley 16 away from the inner cavity of the slide groove 15 is fixedly connected to the support plate 14. Through the cooperation of the slide groove 15 and the pulley 16, the friction between the movable block 6 and the transmission rod 4 is reduced when moving, thereby facilitating the engagement frame 8 to drive the movable block 6 to move.

[0033] Specifically, the top and bottom of the transmission rod 4 and the front of the bearing inner ring 2 are fixedly connected with a fixed plate 17, and the inner cavity of the fixed plate 17 is movably connected with a movable plate 18. The fixed plate 17 is provided to place the movable plate 18.

[0034] Specifically, third limiting grooves 19 are provided on both sides of the inner cavity of the fixed plate 17, and the inner cavity of the third limiting groove 19 is movably connected with a third limiting block 20. The third limiting block 20 is fixedly connected to the movable plate 18 on the side away from the inner cavity of the third limiting groove 19. Through the cooperation of the third limiting groove 19 and the third limiting block 20, the movable plate 18 is limited during the movement, thereby avoiding the situation in which the movable plate 18 is separated from the inner cavity of the fixed plate 17 during the movement and causing the movable plate 18 to fall off.

[0035] Specifically, the front side of the third limiting block 20 is fixedly connected with a second spring 21, and the other end of the second spring 21 is fixedly connected to the inner wall of the third limiting groove 19. By setting the second spring 21, the movable plate 18 can move and fit toward the locking frame 8 through the reset elastic force of the second spring 21.

[0036] Specifically, a clamping hole 22 is provided at the top and bottom of the inner cavity of the bearing inner ring 2, and one end of the clamping frame 8 extends to the inner cavity of the clamping hole 22. By setting the clamping hole 22 and cooperating with the clamping frame 8, the transmission rod 4 is clamped and fixed inside the clamping hole 22, so that it is convenient for the staff to install and disassemble the transmission rod 4, reducing the labor intensity of the staff during installation.

[0037] Specifically, the usage steps are as follows:

[0038] A. When the transmission rod 4 needs to be installed inside the bearing inner ring 2, first press the front end of the engaging frame 8 inward, and the front end of the engaging frame 8 drives the rear end to move downward. When the engaging frame 8 moves downward, it squeezes the first spring 9 and deforms the first spring 9. At the same time, the engaging frame 8 drives the first limiting block 11 to move downward inside the first limiting groove 10, so as to limit the engaging frame 8. Then, the engaging frame 8 is pushed to make the rear end of the engaging frame 8 move to the inside of the bearing inner ring 2. When the rear end of the engaging frame 8 contacts the clamping hole 22, the front end of the engaging frame 8 is then released. Then, the restoring elastic force of the first spring 9 pushes the engaging frame 8 to move upward, so that the rear end of the engaging frame 8 moves to the inside of the clamping hole 22 and is clamped with the clamping hole 22.

[0039] B. When the engaging frame 8 is pushed to move, the engaging frame 8 drives the first limiting block 11 to move inside the first limiting groove 10, and the first limiting block 11 drives the movable block 6 to move. When the movable block 6 moves, it drives the second limiting block 13 to move inside the second limiting groove 12, so as to limit the movable block 6. At the same time, the movable block 6 drives the supporting plate 14 to move, and the supporting plate 14 drives the pulley 16 to slide inside the slide groove 15, so as to reduce the friction between the movable block 6 and the transmission rod 4 when moving, so as to facilitate the staff to move the rear end of the engaging frame 8 to the inside of the clamping hole 22 for clamping;

[0040] C. When the rear end of the engaging frame 8 moves and engages with the engaging hole 22, the return elastic force of the second spring 21 pushes the third limiting block 20 to move, and the third limiting block 20 drives the movable plate 18 to move toward the engaging frame 8 and fits with the engaging frame 8, thereby protecting the interior of the first movable groove 5 from dust. At the same time, the second spring 21 drives the third limiting block 20 to move inside the third limiting groove 19, thereby limiting the movable plate 18;

[0041] D. When it is necessary to remove the transmission rod 4 from the bearing inner ring 2, first press the front end of the engaging frame 8, the front end of the engaging frame 8 drives the rear end to move inside the engaging hole 22 and separates the rear end of the engaging frame 8 from the inside of the engaging hole 22, then push the front end of the engaging frame 8 outward, the front end of the engaging frame 8 drives the rear end to move, so that the rear end of the engaging frame 8 is separated from the inside of the bearing inner ring 2, then push the transmission rod 4 and pull the transmission rod 4 out of the bearing inner ring 2, so as to remove the transmission rod 4 from the inside of the bearing inner ring 2.

[0042] The standard parts used in this application document can all be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented through simple programming by technicians in this field, which is common knowledge in the field. This application is mainly used to protect mechanical devices, so this application no longer explains the control method and circuit connection in detail.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bearing transmission device for a large precision machine tool, comprising a bearing outer ring (1), characterized in that: The inner cavity of the bearing outer ring (1) is provided with a bearing inner ring (2), a rolling body (3) is provided between the bearing outer ring (1) and the bearing inner ring (2), a transmission rod (4) is provided in the inner cavity of the rolling body (3), a first movable groove (5) is provided at the top and the bottom of the transmission rod (4), a movable block (6) is provided in the inner cavity of the first movable groove (5), a second movable groove (7) is provided on the side away from the two movable blocks (6), and the inner cavity of the second movable groove (7) is movablely connected to the inner cavity of the second movable groove (7). A snap-fit ​​frame (8) is connected, the inner wall of the second movable groove (7) is fixedly connected with a first spring (9), one end of the first spring (9) away from the inner cavity of the second movable groove (7) is fixedly connected to the snap-fit ​​frame (8), driving the first limiting grooves (10) to be provided on both sides of the inner cavity of the second movable groove (7), the inner cavity of the first limiting groove (10) is movably connected with a first limiting block (11), and the side of the first limiting block (11) away from the inner cavity of the first limiting groove (10) is fixedly connected to the snap-fit ​​frame (8); Second limiting grooves (12) are provided on both sides of the inner cavity of the first movable groove (5); the inner cavity of the second limiting groove (12) is movably connected to a second limiting block (13); and the side of the second limiting block (13) away from the inner cavity of the second limiting groove (12) is fixedly connected to the movable block (6); The adjacent sides of the two movable blocks (6) are fixedly connected with a support plate (14), and the adjacent sides of the inner cavities of the two first movable grooves (5) are provided with a slide groove (15); The inner cavity of the slide groove (15) is slidably connected to a pulley (16), and the side of the pulley (16) away from the inner cavity of the slide groove (15) is fixedly connected to the support plate (14); A fixed plate (17) is fixedly connected to the top and bottom of the transmission rod (4) and located on the front side of the bearing inner ring (2), and a movable plate (18) is movably connected to the inner cavity of the fixed plate (17).

2. A bearing transmission device for large precision machine tools according to claim 1, characterized in that: A third limiting groove (19) is provided on both sides of the inner cavity of the fixed plate (17); the inner cavity of the third limiting groove (19) is movably connected to a third limiting block (20); and the side of the third limiting block (20) away from the inner cavity of the third limiting groove (19) is fixedly connected to the movable plate (18).

3. A bearing transmission device for large precision machine tools according to claim 2, characterized in that: A second spring (21) is fixedly connected to the front side of the third limiting block (20), and the other end of the second spring (21) is fixedly connected to the inner wall of the third limiting groove (19).

4. A bearing transmission device for large precision machine tools according to claim 3, characterized in that: The top and bottom of the inner cavity of the bearing inner ring (2) are both provided with clamping holes (22), and one end of the clamping frame (8) extends to the inner cavity of the clamping hole (22).

5. The method for using a bearing transmission device for a large precision machine tool according to claim 4, characterized in that: The usage steps are as follows: A. When the transmission rod (4) needs to be installed inside the bearing inner ring (2), first press the front end of the engaging frame (8) inwardly, and the front end of the engaging frame (8) drives the rear end to move downward. When the engaging frame (8) moves downward, it squeezes the first spring (9) and causes the first spring (9) to deform. At the same time, the engaging frame (8) drives the first limiting block (11) to move downward inside the first limiting groove (10), thereby limiting the engaging frame (8). Then, the engaging frame (8) is pushed so that the rear end of the engaging frame (8) moves to the inside of the bearing inner ring (2). When the rear end of the engaging frame (8) contacts the clamping hole (22), the front end of the engaging frame (8) is released. Then, the restoring elastic force of the first spring (9) drives the engaging frame (8) to move upward, thereby causing the rear end of the engaging frame (8) to move to the inside of the clamping hole (22) and clamp with the clamping hole (22). B. When the engaging frame (8) is pushed to move, the engaging frame (8) drives the first limiting block (11) to move inside the first limiting groove (10), and the first limiting block (11) drives the movable block (6) to move. When the movable block (6) moves, it drives the second limiting block (13) to move inside the second limiting groove (12), thereby limiting the movable block (6). At the same time, the movable block (6) drives the supporting plate (14) to move, and the supporting plate (14) drives the pulley (16) to slide inside the sliding groove (15), thereby reducing the friction between the movable block (6) and the transmission rod (4) when moving, so that the staff can move the rear end of the engaging frame (8) to the inside of the engaging hole (22) for engagement; C. When the rear end of the locking frame (8) moves and locks with the locking hole (22), the return elastic force of the second spring (21) pushes the third limiting block (20) to move, and the third limiting block (20) drives the movable plate (18) to move toward the locking frame (8) and fit with the locking frame (8), thereby protecting the interior of the first movable groove (5) from dust. At the same time, the second spring (21) drives the third limiting block (20) to move inside the third limiting groove (19), thereby limiting the movable plate (18); D. When it is necessary to remove the transmission rod (4) from the interior of the bearing inner ring (2), first press the front end of the engaging frame (8), the front end of the engaging frame (8) drives the rear end to move inside the engaging hole (22) and separates the rear end of the engaging frame (8) from the interior of the engaging hole (22), then push the front end of the engaging frame (8) outward, the front end of the engaging frame (8) drives the rear end to move, so that the rear end of the engaging frame (8) is separated from the interior of the bearing inner ring (2), then push the transmission rod (4) and pull the transmission rod (4) out of the interior of the bearing inner ring (2), so that the transmission rod (4) is removed from the interior of the bearing inner ring (2).

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