A bearing unloading device for a moving wheel pair

Abstract

The utility model discloses a bearing unloading device for a moving wheel pair, specifically relates to the technical field of bearing unloading, including a hydraulic cylinder, a unloading plate is fixedly provided at the rear end of the piston rod of the hydraulic cylinder, a plurality of connecting rods are fixedly provided at the front end of the unloading plate, a claw for unloading the moving wheel pair bearing is fixedly provided at the front end of each connecting rod, a plurality of claws are provided with a same protective cover on the outside, a cushion block is fixedly provided at the bottom end of the hydraulic cylinder, support blocks are provided on both sides of the cushion block, and electric slides are fixedly embedded on one side of the two support blocks close to the cushion block, and the two electric slides are fixed to the cushion block. The utility model is suitable for moving wheel pair bearings of different heights by setting a height-adjustable hydraulic cylinder, and a protective cover is used to protect the outer side of the bearing to prevent the claw from accidentally breaking and splashing onto the staff to cause injury, and a collection box and a sponge are used to collect accidentally dropped bearings, so as to avoid the bearing from falling and being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing withdrawal, in particular to a bearing withdrawal device for a moving wheel pair. Background Art

[0002] The bearing removal device for EMU wheels is a professional tool for removing bearings from EMU wheels. It usually consists of a set of mechanical structures and hydraulic systems, which can provide sufficient force to safely and efficiently remove the bearings fastened to the journal. This device is very important for the repair and maintenance of EMUs, because after a long period of operation, the bearings may need to be replaced due to wear, damage or insufficient lubrication.

[0003] For example, the prior art publication number is CN209035921U, which is a bearing withdrawal device for a moving vehicle wheel set. This utility model can improve the utilization rate of existing equipment and tooling, and reduce the project cost caused by abnormal production of special vehicle bogies.

[0004] However, the above-mentioned prior art still has the following problems when in use: when using the pulling claw to unload the moving wheel pair bearing, the pulling claw may break and splash onto the staff, thereby causing injury; and when the bearing accidentally falls during the unloading process, the bearing is easily damaged, thereby increasing the cost of use. Based on this, the utility model provides a bearing unloading device for a moving wheel pair with high safety. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a bearing removal device for a moving wheel pair. By arranging a height-adjustable hydraulic cylinder, it is suitable for bearings of moving wheel pairs of different heights. A protective cover is used to protect the outer side of the bearing to prevent the pulling claw from accidentally breaking and splashing onto the staff and causing injuries. A collection box and a sponge are used to collect accidentally dropped bearings, thereby preventing the bearings from falling and being damaged, thereby solving the problems arising from the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bearing unloading device for a moving wheel pair, comprising a hydraulic cylinder, a piston rod of the hydraulic cylinder having a unloading plate fixedly provided at the rear end, a plurality of connecting rods fixedly provided at the front end of the unloading plate, each connecting rod having a pulling claw fixedly provided at the front end for unloading the moving wheel pair bearing, a plurality of pulling claws having a same protective cover provided on the outer sides, a cushion block fixedly provided at the bottom end of the hydraulic cylinder, support blocks provided at both sides of the cushion block, two support blocks having an electric slide fixedly embedded on one side close to the cushion block, the two electric slides being fixed to the cushion block for adjusting the height of the hydraulic cylinder, a flatbed cart fixedly provided at the bottom end of the two support blocks for driving the hydraulic cylinder to move, a collection box fixedly provided on the top of the flatbed cart, the collection box being arranged in front of the two support blocks, a sponge pad provided inside the collection box.

[0007] In a preferred embodiment, limit blocks are fixedly provided on both sides of the bottom end of the protective cover, and limit grooves matching the limit blocks are opened on the tops of the two support blocks. The two limit blocks are respectively arranged in the two limit grooves for adjusting the position of the protective cover.

[0008] In a preferred embodiment, a spring latch 1 is fixedly passed through the far side of the two support blocks, and the spring latch 1 abuts against the limit block. The spring latch 1 is used to firmly abut the limit block, so that the protective cover can remain stationary and prevent the protective cover from shaking.

[0009] In a preferred embodiment, a threaded hole is provided at the front end of the hydraulic cylinder, a first threaded rod is threadedly connected to the threaded hole, a guide sleeve is fixed to the front end of the first threaded rod, and the guide sleeve is fixed to the shaft end of the moving wheel pair by multiple bolts.

[0010] In a preferred embodiment, a spring latch 2 is fixedly passed through one side of the hydraulic cylinder, and a slot matching the spring latch 2 is opened on one side of the first threaded rod. The spring latch 2 is inserted in the slot to improve the firmness between the first threaded rod and the hydraulic cylinder.

[0011] In a preferred embodiment, the four corners of the top of the flatbed are all threadedly connected with second threaded rods, and the bottom end of each second threaded rod passes through the bottom end of the flatbed and is rotatably provided with a foot pad to improve the stability of the flatbed when it is stationary.

[0012] In a preferred embodiment, a crank is fixedly provided on the top end of each second threaded rod to facilitate the rotation of the second threaded rod.

[0013] Technical effects and advantages of the utility model:

[0014] The utility model is suitable for the bearings of moving wheel pairs of different heights by arranging a height-adjustable hydraulic cylinder, and uses a protective cover to protect the outer side of the bearing to prevent the pulling claw from accidentally breaking and splashing onto the staff to cause injury, and uses a collection box and a sponge to collect the bearing that accidentally falls, so as to prevent the bearing from falling and being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a side view of the overall structure of the utility model;

[0017] Figure 3 It is a cross-sectional view of the cushion block of the utility model;

[0018] Figure 4 It is a schematic diagram of the guide sleeve and the first threaded rod of the utility model;

[0019] Figure 5 It is a partial schematic diagram of the utility model.

[0020] The accompanying drawings are marked as follows: 1. hydraulic cylinder; 2. unloading plate; 3. connecting rod; 4. pulling claw; 5. protective cover; 6. pad; 7. supporting block; 8. electric slide; 9. flatbed car; 10. collecting box; 11. sponge pad; 12. limit block; 13. limit groove; 14. spring latch one; 15. threaded hole; 16. first threaded rod; 17. guide sleeve; 18. spring latch two; 19. slot; 20. second threaded rod; 21. foot pad. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Refer to the instruction manual Figure 1-5 The utility model provides a bearing unloading device for a moving wheel pair, comprising a hydraulic cylinder 1, a unloading plate 2 is fixedly arranged at the rear end of the piston rod of the hydraulic cylinder 1, a plurality of connecting rods 3 are fixedly arranged at the front end of the unloading plate 2, a claw 4 for unloading the bearing of the moving wheel pair is fixedly arranged at the front end of each connecting rod 3, and a same protective cover 5 is arranged on the outer side of the plurality of claws 4;

[0023] A threaded hole 15 is formed at the front end of the hydraulic cylinder 1, and a first threaded rod 16 is connected to the inner thread of the threaded hole 15. A guide sleeve 17 is fixed to the front end of the first threaded rod 16. The guide sleeve 17 is fixed to the shaft end of the moving wheel set by a plurality of bolts and is used to connect the shaft end of the moving wheel set for use;

[0024] A cushion block 6 is fixedly provided at the bottom end of the hydraulic cylinder 1, and support blocks 7 are provided on both sides of the cushion block 6. Electric slides 8 are fixedly embedded on the two support blocks 7 close to the side of the cushion block 6. The two electric slides 8 are fixed to the cushion block 6 and are used to adjust the height of the hydraulic cylinder 1. A flatbed trolley 9 is fixedly provided at the bottom end of the two support blocks 7 for driving the hydraulic cylinder 1 to move. A collection box 10 is fixedly provided on the top of the flatbed trolley 9. The collection box 10 is arranged in front of the two support blocks 7, and a sponge pad 11 is provided inside the collection box 10.

[0025] When in use, the staff first pushes the flatbed cart 9 to the side of the moving wheel pair, and uses two electric slides 8 to drive the guide sleeve 17 to move up according to the height of the moving wheel pair, and then fixes the guide sleeve 17 to the shaft end of the moving wheel pair, and after multiple claws 4 are in contact with the shaft neck of the bearing, the protective cover 5 is pushed to the outside of the multiple claws 4, and the protective cover 5 is used to protect the outside of the bearing to prevent the claws 4 from accidentally breaking and splashing onto the staff and causing injury. Then the hydraulic cylinder 1 can be extended to drive the unloading plate 2 to move backward, and the unloading plate 2 applies an axial pulling force to the bearing through the connecting rod 3 and the claws 4. When this force reaches a certain level, the automatic unloading of the bearing can be completed, and a collection box 10 is set. When the bearing falls accidentally, the collection box 10 is used to collect the bearing, and the sponge in the collection box 10 can play a buffering role to prevent the bearing from falling and being damaged.

[0026] Refer to the instruction manual Figure 1-5 , both sides of the bottom end of the protective cover 5 are fixed with limit blocks 12, and the tops of the two support blocks 7 are provided with limit grooves 13 adapted to the limit blocks 12. The two limit blocks 12 are respectively arranged in the two limit grooves 13 to adjust the position of the protective cover 5. The two support blocks 7 are fixed with a spring latch 14 on the side away from each other, and the spring latch 14 is in contact with the limit block 12. The spring latch 14 is used to firmly hold the limit block 12, so that the protective cover 5 can remain stationary and prevent the protective cover 5 from shaking.

[0027] In addition, a second spring latch 18 is fixedly passed through one side of the hydraulic cylinder 1, and a slot 19 adapted to the second spring latch 18 is opened on one side of the first threaded rod 16. The second spring latch 18 is inserted into the slot 19 to improve the firmness between the first threaded rod 16 and the hydraulic cylinder 1;

[0028] The four corners of the top of the flatbed trolley 9 are all threadedly connected with a second threaded rod 20. The bottom end of each second threaded rod 20 passes through the bottom end of the flatbed trolley 9 and is rotatably provided with a foot pad 21, which is used to improve the stability of the flatbed trolley 9 when it is stationary. A crank is fixed at the top of each second threaded rod 20 to facilitate the staff to rotate the second threaded rod 20.

[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A bearing removal device for a moving wheel set, comprising a hydraulic cylinder (1), characterized in that: A withdrawal plate (2) is fixedly provided at the rear end of the piston rod of the hydraulic cylinder (1); a plurality of connecting rods (3) are fixedly provided at the front end of the withdrawal plate (2); a claw (4) for withdrawing the bearing of the moving wheel pair is fixedly provided at the front end of each connecting rod (3); and a common protective cover (5) is provided on the outer sides of the plurality of claws (4); A cushion block (6) is fixedly provided at the bottom end of the hydraulic cylinder (1), support blocks (7) are provided on both sides of the cushion block (6), electric slides (8) are fixedly embedded on one side of the two support blocks (7) close to the cushion block (6), the two electric slides (8) are fixed to the cushion block (6) and are used to adjust the height of the hydraulic cylinder (1), and a flatbed car (9) is fixedly provided at the bottom end of the two support blocks (7) and is used to drive the hydraulic cylinder (1) to move; A collection box (10) is fixedly provided on the top of the flatbed vehicle (9), the collection box (10) is arranged in front of the two support blocks (7), and a sponge pad (11) is provided inside the collection box (10).

2. The bearing removal device for a moving vehicle wheel set according to claim 1 is characterized in that: Limit blocks (12) are fixedly provided on both sides of the bottom end of the protective cover (5), and limit grooves (13) matching the limit blocks (12) are provided on the top ends of the two support blocks (7). The two limit blocks (12) are respectively arranged in the two limit grooves (13) for adjusting the position of the protective cover (5).

3. The bearing removal device for a moving vehicle wheel set according to claim 2 is characterized in that: A spring latch one (14) is fixedly passed through one side of the two support blocks (7) that is away from the other side. The spring latch one (14) abuts against the limit block (12) and is used to fix the protective cover (5).

4. The bearing removal device for a moving vehicle wheel set according to claim 1, characterized in that: A threaded hole (15) is formed at the front end of the hydraulic cylinder (1), a first threaded rod (16) is internally threadedly connected to the threaded hole (15), a guide sleeve (17) is fixedly provided at the front end of the first threaded rod (16), and the guide sleeve (17) is fixed to the shaft end of the moving wheel pair via a plurality of bolts.

5. The bearing removal device for a moving vehicle wheel set according to claim 4 is characterized in that: A second spring latch (18) is fixedly passed through one side of the hydraulic cylinder (1), and a slot (19) adapted to the second spring latch (18) is provided on one side of the first threaded rod (16). The second spring latch (18) is inserted into the slot (19) to improve the firmness between the first threaded rod (16) and the hydraulic cylinder (1).

6. The bearing removal device for a moving vehicle wheel set according to claim 1, characterized in that: The four corners of the top of the flatbed trolley (9) are all threadedly connected to second threaded rods (20), and the bottom end of each second threaded rod (20) passes through the bottom end of the flatbed trolley (9) and is rotatably provided with a foot pad (21) for improving the stability of the flatbed trolley (9) when it is stationary.

7. The bearing removal device for a moving vehicle wheel set according to claim 6, characterized in that: A crank is fixedly provided at the top end of each second threaded rod (20) to facilitate the rotation of the second threaded rod (20).

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