Cutting device for railway wagon coupler maintenance

Abstract

The utility model provides a cutting device for railway wagon coupler maintenance, and relates to the technical field of couplers, the cutting device comprises a stand column, the bottom of the stand column is fixedly connected with a clamping jaw, the inner side of the clamping jaw is provided with two placing grooves, the inner side of one placing groove is rotatably connected with a first threaded rod, and the other placing groove is internally and fixedly connected with a fixing rod; the smooth end of the first threaded rod movably penetrates through one containing groove and extends to the outer portion of the clamping jaw. According to the utility model, the lower surface of the car coupler is hooked by the two hooks on the clamping jaw, and then the first threaded rod is rotated, so that the first threaded rod drives the two moving blocks to move downwards, and the two moving blocks drive the chuck to move downwards, thereby clamping and fixing the car coupler, and further realizing firm fixation of the upright post; the problem that the maintenance efficiency is reduced due to the fact that an existing device needs to be fixed through an external tool in the using process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of couplers, in particular to a cutting device for repairing railway freight car couplers. Background Art

[0002] The railway freight car coupler is the stress-bearing part connecting the carriages. During the operation stage, the coupler will be overloaded and worn, which requires maintenance. At present, manual operation is used to solve this problem, that is, maintenance workers hold angle grinders to operate the parts that need to be grinded and cut.

[0003] For example, the Chinese application number CN202321773290.4 is a special cutting device for repairing railway freight car couplers. It states in the specification that "the utility model discloses a special cutting device for repairing railway freight car couplers, which is used to solve the problem that there is no special equipment in the prior art. The device includes a fixing assembly, a mechanical arm assembly and an angle grinder. The fixing assembly includes a column, a claw, a screw rod, a slider and a handle. The claw is movably mounted on the column; a hand wheel is installed on the top of the screw rod, and the middle and lower parts of the screw rod are threadedly matched with two sliders. Two slide grooves are provided on the column within the sliding stroke of the two sliders; the mechanical arm assembly includes a rotating cylinder, a crank arm, a small arm and a double-rod linear bearing. The rotating cylinder is sleeved on the column between the two annular bodies. One end of the crank arm is fixed on the rotating cylinder, and the other end is connected to a small arm through a joint head. The double-rod linear bearing is fixedly installed on the small arm, and the double-rod linear bearing is installed on the angle grinder through a mounting bracket. The present technology provides a special tooling for the correction of special parts such as a coupler, which solves the problem of the lack of relevant special equipment in the existing equipment."

[0004] During use, the existing device realizes the standardization of the correction of the bottom surface of the coupler, avoiding the disadvantages of manual hand-held grinding. The standardized grinding effect is good, but when fixing the column, it is necessary to tighten the bolts I and II respectively to achieve a secure fixation of the column through the support of the flange and the hook. Although this fixing method is stable, it is inconvenient to operate and needs to be fixed with the help of external tools, which reduces the maintenance efficiency. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that in the prior art, when fixing the column, it is necessary to tighten the bolts I and II respectively to achieve a secure fixation of the column through the supporting effect of the flange and the hook. Although this fixing method is stable, it is inconvenient to operate and needs to be fixed with the help of external tools, which reduces the maintenance efficiency. The cutting device for railway freight car coupler maintenance is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cutting device for repairing a railway freight car coupler comprises a column, a claw is fixedly connected to the bottom of the column, two placement grooves are provided on the inner side of the claw, a first threaded rod is rotatably connected to the inner side of one of the placement grooves, and a fixed rod is fixedly connected to the other placement groove, a smooth end of the first threaded rod is movably passed through one of the placement grooves and extends to the outside of the claw, two moving blocks are sleeved on the outer surfaces of the first threaded rod and the fixed rod, a chuck is fixedly connected to the opposite side of the two moving blocks, a movable shell is provided on the outer surface of the column, and a maintenance mechanism is provided on one side of the movable shell.

[0007] Preferably, the maintenance mechanism comprises a support arm, and the support arm is fixedly connected to one side of the movable shell.

[0008] Preferably, one side of the support arm is rotatably connected to a second threaded rod, and one end of the second threaded rod is fixedly connected to a rotating cap.

[0009] Preferably, an adjusting block is sleeved on the outer surface of the second threaded rod, and an angle grinder is arranged at the bottom of the adjusting block.

[0010] Preferably, a slide groove is provided on one side of the column, a limiting hole is provided on one side of the movable shell, and a return spring is fixedly connected in the slide groove.

[0011] Preferably, a sliding rod is slidably connected in the sliding groove, one end of the sliding rod is fixedly connected to the return spring, the other end of the sliding rod is fixedly connected to the limiting block, the smooth end of the first threaded rod is fixedly installed with a turning handle, and the top of the column is fixedly connected to the limiting plate.

[0012] Preferably, the claw is a door-shaped profile with a hook.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, two hooks on the claws are hooked onto the lower surface of the coupler, and then the first threaded rod is rotated, so that the first threaded rod drives the two moving blocks to move downward, and the two moving blocks drive the chuck to move downward, so that the coupler is clamped and fixed, and the column is firmly fixed, which solves the problem that the existing device needs to be fixed with the help of external tools during use, resulting in reduced maintenance efficiency.

[0015] 2. In the utility model, by pressing the two limit blocks, the two limit blocks drive the two slide bars to slide into the two slide grooves, and at the same time, the two return springs are squeezed and begin to shrink, and then the movable shell is pulled upward or downward, so that the movable shell drives the maintenance mechanism to move upward or downward. When the movable shell moves to the target position, under the elastic force of the two return springs, the two slide bars drive the two limit blocks to squeeze into the limit holes, thereby limiting and fixing the movable shell, which is convenient for adjusting the height of the maintenance mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of the main structure of the cutting device for repairing railway freight car couplers proposed in the utility model;

[0017] Figure 2 This is a rear structural stereogram of the cutting device for repairing a railway freight car coupler proposed in the utility model;

[0018] Figure 3 This is a perspective view of the cross-sectional structure of the clamping claw in the cutting device for repairing the railway freight car coupler proposed in the utility model;

[0019] Figure 4 This is a partially cutaway structural perspective view of a central column of a cutting device for repairing a railway freight car coupler proposed in the utility model;

[0020] Figure 5 The utility model provides a structural stereogram of a movable shell in a cutting device for repairing a railway freight car coupler.

[0021] Legend: 1. Column; 2. Clamping claw; 3. Placement slot; 4. First threaded rod; 5. Fixed rod; 6. Moving block; 7. Chuck; 8. Movable shell; 9. Maintenance mechanism; 901. Support arm; 902. Second threaded rod; 903. Rotating cap; 904. Adjustment block; 905. Angle grinder; 10. Slide groove; 11. Limit hole; 12. Reset spring; 13. Slide rod; 14. Limit block; 15. Turn handle; 16. Limit plate. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Embodiment 1, as Figure 1 - Figure 5 As shown, the utility model provides a cutting device for repairing a railway freight car coupler, comprising a column 1, a claw 2 is fixedly connected to the bottom of the column 1, two placement grooves 3 are provided on the inner side of the claw 2, a first threaded rod 4 is rotatably connected to the inner side of one of the placement grooves 3, a fixing rod 5 is fixedly connected to the inner side of the other placement groove 3, a smooth end of the first threaded rod 4 movably passes through one of the placement grooves 3 and extends to the outside of the claw 2, two moving blocks 6 are sleeved on the outer surfaces of the first threaded rod 4 and the fixing rod 5, a chuck 7 is fixedly connected to the opposite side of the two moving blocks 6, a movable shell 8 is provided on the outer surface of the column 1, and a maintenance mechanism 9 is provided on one side of the movable shell 8.

[0025] The effect achieved by the entire embodiment 1 is that the two hooks on the claw 2 are hooked onto the lower surface of the hook, and then the first threaded rod 4 is rotated, so that the first threaded rod 4 drives the two moving blocks 6 to move downward, and the two moving blocks 6 drive the chuck 7 to move downward, thereby clamping and fixing the hook, and then realizing a firm fixation of the column 1, which solves the problem that the existing device needs to be fixed with the help of external tools during use, resulting in reduced maintenance efficiency.

[0026] Embodiment 2, as Figure 1 - Figure 5 As shown, the maintenance mechanism 9 includes a support arm 901, which is fixedly connected to one side of the movable shell 8. A second threaded rod 902 is rotatably connected to one side of the support arm 901, and a rotating cap 903 is fixedly connected to one end of the second threaded rod 902. An adjusting block 904 is sleeved on the outer surface of the second threaded rod 902, and an angle grinder 905 is arranged at the bottom of the adjusting block 904. A slide groove 10 is provided on one side of the column 1, and a limiting hole 11 is provided on one side of the movable shell 8. A return spring 12 is fixedly connected in the slide groove 10, and a slide rod 13 is slidably connected in the slide groove 10. One end of the slide rod 13 is fixedly connected to the return spring 12, and the other end of the slide rod 13 is fixedly connected to the limiting block 14. A rotating handle 15 is fixedly installed on the smooth end of the first threaded rod 4. A limiting plate 16 is fixedly connected to the top of the column 1, and the claw 2 is a door-shaped profile with a hook.

[0027] The effect achieved by the entire embodiment 2 is that, by providing the maintenance mechanism 9, under the action of the second threaded rod 902, the rotating cap 903 and the adjusting block 904, the pitch angle of the angle grinder 905 can be adjusted. After adjusting to a suitable angle, the angle grinder 905 is started to make the grinding wheel on the angle grinder 905 rotate at a high speed, and then the angle grinder 905 is held hand to facilitate cutting or grinding the bottom surface of the hook, and then the two limit blocks 14 are pressed, so that the two limit blocks 14 drive the two slide bars 13 to slide into the two slide grooves 10. The movable shell 8 moves, and at the same time, the two return springs 12 are squeezed and begin to contract, and then pull the movable shell 8 upward or downward, so that the movable shell 8 drives the maintenance mechanism 9 to move upward or downward. When the movable shell 8 moves to the target position, under the elastic force of the two return springs 12, the two slide bars 13 drive the two limit blocks 14 to squeeze into the limit holes 11, so as to limit and fix the movable shell 8, which is convenient for adjusting the height of the maintenance mechanism 9 and facilitating maintenance operations. The turning handle 15 is provided to facilitate the rotation of the first threaded rod 4, thereby improving convenience.

[0028] Working principle: When in use, first hook the two hooks on the claw 2 onto the lower surface of the coupler, then rotate the handle 15, so that the first threaded rod 4 drives the two moving blocks 6 to move downward, and the two moving blocks 6 drive the chuck 7 to move downward, thereby clamping and fixing the coupler, thereby achieving a secure fixation of the column 1, and then press the two limit blocks 14, so that the two limit blocks 14 drive the two slide bars 13 to slide into the two slide grooves 10, and at the same time, the two return springs 12 are squeezed and begin to shrink, and then pull the movable shell 8 upward or downward, so that the movable shell 8 drives the maintenance mechanism 9 to move upward or downward. After the movable shell 8 moves to the target position, under the elastic force of the two return springs 12, the two slide bars 13 drive the two limit blocks 14 to squeeze into the limit holes 11, thereby limiting and fixing the movable shell 8, making it convenient to adjust the height of the angle grinder 905. After adjusting to a suitable height, the pitch angle of the angle grinder 905 is adjusted under the action of the second threaded rod 902, the rotating cap 903 and the adjusting block 904. After adjusting to a suitable angle, start the angle grinder 905 to make the grinding wheel on the angle grinder 905 rotate at high speed, and then hold the angle grinder 905 to cut or grind the bottom surface of the hook.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A cutting device for repairing a railway freight car coupler, comprising a column (1), characterized in that: The bottom of the column (1) is fixedly connected to a clamping claw (2), and two placement grooves (3) are provided on the inner side of the clamping claw (2), wherein a first threaded rod (4) is rotatably connected to the inner side of one of the placement grooves (3), and a fixed rod (5) is fixedly connected to the inner side of the other placement groove (3), and a smooth end of the first threaded rod (4) movably passes through one of the placement grooves (3) and extends to the outside of the clamping claw (2), and two moving blocks (6) are sleeved on the outer surfaces of the first threaded rod (4) and the fixed rod (5), and a chuck (7) is fixedly connected to the opposite side of the two moving blocks (6), and a movable shell (8) is provided on the outer surface of the column (1), and a maintenance mechanism (9) is provided on one side of the movable shell (8).

2. The cutting device for repairing railway freight car couplers according to claim 1, characterized in that: The maintenance mechanism (9) comprises a support arm (901), and the support arm (901) is fixedly connected to one side of the movable shell (8).

3. The cutting device for repairing railway freight car couplers according to claim 2, characterized in that: One side of the support arm (901) is rotatably connected to a second threaded rod (902), and one end of the second threaded rod (902) is fixedly connected to a rotating cap (903).

4. The cutting device for repairing railway freight car couplers according to claim 3, characterized in that: An adjustment block (904) is sleeved on the outer surface of the second threaded rod (902), and an angle grinder (905) is arranged at the bottom of the adjustment block (904).

5. The cutting device for repairing railway freight car couplers according to claim 1, characterized in that: A slide groove (10) is provided on one side of the upright column (1), a limit hole (11) is provided on one side of the movable shell (8), and a return spring (12) is fixedly connected in the slide groove (10).

6. The cutting device for repairing railway freight car couplers according to claim 5, characterized in that: A slide rod (13) is slidably connected in the slide groove (10), one end of the slide rod (13) is fixedly connected to the return spring (12), and the other end of the slide rod (13) is fixedly connected to a limit block (14). A rotating handle (15) is fixedly mounted on the smooth end of the first threaded rod (4), and the top of the column (1) is fixedly connected to a limit plate (16).

7. The cutting device for repairing railway freight car couplers according to claim 1, characterized in that: The claw (2) is a door-shaped profile and has a hook.

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