Quick dismounting and mounting device for coupling pin

Abstract

The utility model relates to the technical field of coupler pin disassembly and assembly, and particularly discloses a coupler pin quick disassembly and assembly device which comprises an upper clamping plate. Disassembling and assembling the screw rod; a bottom plate of the upper clamping plate is provided with an arc-shaped plate, the bottom of the arc-shaped plate is rotationally connected with a plurality of locking lead screws, the peripheries of the locking lead screws are sleeved with connecting plates, a cavity block is installed between every two adjacent connecting plates, the supporting blocks are movably installed in the cavity blocks, and one side of each supporting block is rotationally connected with a displacement lead screw. The displacement lead screw penetrates through the cavity block; and a lower splint. According to the utility model, the supporting block is clamped between the two half couplings, so that the two half couplings can be effectively prevented from being deformed after being clamped and fixed, the positioning holes are effectively prevented from being bent, the pins are effectively prevented from being bent, and the difficulty of pulling the pins out of the positioning holes is reduced; and meanwhile, the coupler, the positioning hole and the pin are effectively prevented from being damaged.

Description

Technical Field

[0001] This utility model belongs to the field of coupling pin disassembly and assembly technology, and particularly relates to a quick disassembly and assembly device for coupling pins. Background Technology

[0002] A coupling is a device that connects two shafts or a shaft and a rotating component, allowing them to rotate together during motion and power transmission, and remaining connected under normal conditions. A coupling mainly consists of two half-couplings and a pin placed between them. The pin is usually made of non-metallic materials such as nylon, possessing a certain degree of elasticity to compensate for slight misalignments between the two shafts.

[0003] Currently, after prolonged use, couplings require replacement of the pins inside. When disassembling and assembling the pins, the common practice is to strike them to slowly pull them out of the positioning hole. This method can easily damage the pins, thus increasing the difficulty of disassembly and assembly.

[0004] To address the aforementioned technical problems, the applicant has retrieved some existing technologies to achieve disassembly and removal without easily damaging the pin. For example, patent publication number CN212665967U describes a method where two U-shaped brackets are mounted on the edge of the coupling connecting plate. The position of the two U-shaped brackets is adjusted so that the movable lead screw aligns with the pin to be disassembled. Then, the adjusting screw is tightened to secure the U-shaped brackets, and a torque rod is used to rotate the movable lead screw to disassemble the pin. However, the applicant's analysis reveals a drawback: Since the edges of the two half-couplings are clamped and fixed by the fixing strip and push plate, gaps between the two half-couplings can easily cause them to shift towards each other, resulting in slight deformation of the clamped parts. This causes slight bending of the positioning hole where the pin is installed, leading to slight bending of the pin itself, and thus increasing the difficulty of removing the pin. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of the existing technology by providing a quick-release device for coupling pins, thereby solving the technical problem that the existing technology causes the two half-couplings to deform inward when clamped, resulting in slight bending of the pins and increasing the difficulty of removing the pins.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A quick-release device for coupling pins, comprising:

[0008] Upper splint;

[0009] The screw rod is disassembled and assembled. A threaded sleeve is installed on the upper clamp plate through a sleeve, and the screw rod is internally connected to the disassembly and assembly screw rod.

[0010] The support block has an arc-shaped plate on the bottom plate of the upper clamping plate. Several locking screws are rotatably connected to the bottom of the arc-shaped plate. A connecting plate is sleeved around the locking screws. A cavity block is installed between two adjacent connecting plates. A support block is movably installed inside the cavity block. A displacement screw is rotatably connected to one side of the support block. The displacement screw passes through the cavity block.

[0011] The lower clamping plate is threadedly connected to the locking screw. A guide rod is provided on the lower clamping plate, and the guide rod passes through the connecting plate and the arc-shaped plate.

[0012] As a preferred embodiment of the above technical solution, the support block includes a guide block and a wedge block. The guide block is rotatably connected to a displacement screw, and the wedge block is fixed on the other side of the guide block. The cross-sectional length of the wedge block becomes shorter and shorter in the direction away from the guide block.

[0013] As a preferred embodiment of the above technical solution, the wedge block is inserted into the gap between the two half-couplings, and there is a certain distance between the position of the wedge block inside the two half-couplings and the corresponding pin.

[0014] As a preferred embodiment of the above technical solution, the upper clamping plate is provided with several support plates, and a fixed sleeve is provided between the support plates. A support ring is provided on the inner side of the sleeve. The threaded sleeve is fitted inside the sleeve and supported by the support ring. Several locking blocks are provided around the threaded sleeve. Several locking grooves are opened inside the sleeve, and the locking blocks are locked in the locking grooves.

[0015] As a preferred embodiment of the above technical solution, the threaded sleeve is symmetrically divided into two halves.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. In this utility model, the support block is clamped between the two half couplings, which can effectively prevent the two half couplings from deforming after being clamped and fixed, effectively prevent the positioning hole from bending, and effectively prevent the pin from bending, thereby reducing the difficulty of pulling the pin out of the positioning hole, and also effectively preventing damage to the coupling, positioning hole and pin.

[0018] 2. In this utility model, a wedge block is inserted into the gap between two half couplings, so that the wedge block can adapt to gaps of the same thickness, thus improving practicality; at the same time, when the wedge block is slowly inserted into the gap, the contact surface with the coupling is inclined, which effectively avoids the wedge block damaging the coupling.

[0019] 3. In this utility model, by setting the threaded sleeve in two halves and making it detachable, the process of removing the screw rod from the positioning hole is more convenient and quick, thereby indirectly improving the efficiency of disassembling and assembling the pin. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the device mounted on the coupling;

[0022] Figure 3 This is a schematic diagram of the support block structure;

[0023] Figure 4 This is a schematic diagram of the structure after the lead screw and threaded sleeve are disassembled.

[0024] In the picture:

[0025] 1. Upper clamping plate; 2. Support plate; 3. Sleeve; 31. Support ring; 32. Slot; 4. Threaded sleeve; 41. Locking block; 5. Disassembly screw; 51. Rubber pad; 52. Torsion bar; 6. Arc plate; 7. Cavity block; 8. Support block; 81. Guide block; 82. Wedge block; 9. Displacement screw; 10. Connecting plate; 11. Lower clamping plate; 111. Guide rod; 12. Locking screw. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1-3 As shown, a quick-release device for coupling pins includes:

[0028] Upper clamp 1;

[0029] The screw 5 is disassembled and assembled. A threaded sleeve 4 is installed on the upper clamping plate 1 through the sleeve 3. The screw 5 is connected to the internal thread of the threaded sleeve 4.

[0030] The support block 8 and the bottom plate of the upper clamping plate 1 are provided with an arc plate 6. Several locking screws 12 are rotatably connected to the bottom of the arc plate 6. A connecting plate 10 is sleeved around the locking screws 12. A cavity block 7 is installed between two adjacent connecting plates 10. The support block 8 is movably installed in the cavity block 7. A displacement screw 9 is rotatably connected to one side of the support block 8. The displacement screw 9 passes through the cavity block 7.

[0031] The lower clamping plate 11 is threadedly connected to the locking screw 12. A guide rod 111 is provided on the lower clamping plate 11, and the guide rod 111 passes through the connecting plate 10 and the arc plate 6.

[0032] In one embodiment, a rubber pad 51 is provided at one end of the disassembly screw 5, which contacts the pin to protect it. A torsion bar 52 is movably installed at the other end, making it easier to rotate the disassembly screw 5. The guide rod 111 guides the lower clamping plate 11, causing the lower clamping plate 11 to move along the locking screw 12.

[0033] In practical application, during disassembly, the device is first secured to the outside of the two half-couplings, aligning the disassembly screw 5 with the positioning hole where the pin is installed. Then, the upper clamping plate 1 is pressed against the upper surface of the coupling, and the connecting plate 10 is moved up and down to align the support block 8 inside the cavity block 7 with the gap between the two half-couplings. Next, the displacement screw 9 is rotated to move the support block 8 toward the gap and insert it into the gap to support the two half-couplings. Then, the locking screw 12 is rotated to clamp several lower clamping plates 11 onto the lower surface of the coupling. Finally, the torsion bar is used to... 52. Rotate the disassembly and assembly screw 5 to move it toward the pin and slowly press the pin, so that the pin is slowly pushed out of the positioning hole, thus completing the disassembly of the pin; during installation, simply place the lower clamping plate 11 against the lower surface of the coupling, and there is a certain distance between the upper clamping plate 1 and the upper surface of the coupling, which is equal to the length of the pin. First, insert the pin into the positioning hole, and then rotate the disassembly and assembly screw 5 through the torsion bar 52 to press the pin into the positioning hole until the pin is completely inserted into the positioning hole;

[0034] By using support block 8 to hold the two half-couplings together, deformation of the two half-couplings after being clamped and fixed can be effectively prevented, bending of the positioning hole and the pin can be prevented, thus reducing the difficulty of pulling the pin out of the positioning hole and also effectively preventing damage to the coupling, positioning hole and pin.

[0035] Furthermore, the support block 8 includes a guide block 81 and a wedge block 82. The guide block 81 is rotatably connected to the displacement screw 9, and the wedge block 82 is fixed on the other side of the guide block 81. The cross-sectional length of the wedge block 82 becomes shorter and shorter in the direction away from the guide block 81.

[0036] In one embodiment, the guide block 81 is engaged in the cavity block 7 on both sides, and the guide block 81 moves along the cavity block 7 when it moves.

[0037] In practical application, the rotating displacement screw 9 moves towards the cavity block 7, causing the guide block 81 to drive the wedge block 82 towards the gap between the two half-couplings. This allows the wedge block 82 to slowly lock into the gap between the two half-couplings, effectively preventing deformation of the two half-couplings after being clamped and fixed. The wedge shape of the wedge block 82 allows it to adapt to gaps of different thicknesses, improving its practicality.

[0038] Furthermore, the wedge block 82 is inserted into the gap between the two half-couplings, and there is a certain distance between the position of the wedge block 82 inside the two half-couplings and the corresponding pin.

[0039] In practical applications, when the wedge block 82 is wedged into the gap between the two half-couplings, there is a certain distance between the innermost side of the wedge block 82 and the pin, so as not to affect the disassembly and assembly of the pin.

[0040] like Figure 4 As shown, the upper clamping plate 1 is provided with several support plates 2, and the support plates 2 are fixed with sleeves 3. The inner side of the sleeve 3 is provided with a support ring 31. The threaded sleeve 4 is fitted inside the sleeve 3 and supported by the support ring 31. The outer side of the threaded sleeve 4 is provided with several locking blocks 41. The sleeve 3 is provided with several locking grooves 32, and the locking blocks 41 are locked in the locking grooves 32.

[0041] In one embodiment, the locking block 41 is engaged in the locking groove 32 to keep the threaded sleeve 4 stable, thereby allowing the disassembly and assembly screw 5 to rotate normally.

[0042] In practical application, after the pin is disassembled and assembled, simply pull the disassembly and assembly screw 5 upwards to pull the threaded sleeve 4 out of the sleeve 3. This allows the disassembly and assembly screw 5 to be directly removed from the positioning hole, eliminating the need to rotate the disassembly and assembly screw 5 to move it upwards and out of the positioning hole. This indirectly improves the efficiency of disassembling and assembling the pin.

[0043] Furthermore, the threaded sleeve 4 is symmetrically divided into two halves. In practical application, after the disassembly and assembly screw 5 pulls the threaded sleeve 4 out of the sleeve 3, the threaded sleeve 4 is directly divided into two halves. This can quickly separate the disassembly and assembly screw 5 from the threaded sleeve 4, thereby further improving the efficiency of disassembly and assembly of the pin.

[0044] Working principle: During disassembly, first, clamp the device onto the outside of the coupling, aligning the disassembly screw 5 with the positioning hole where the pin is installed. Then, place the upper clamping plate 1 against the upper surface of the coupling, and move the connecting plate 10 up and down so that the support block 8 inside the cavity block 7 aligns with the gap between the two half-couplings. Next, rotate the displacement screw 9 to move the support block 8 toward the gap and insert it into the gap to support the two half-couplings. Then, rotate the locking screw 12 to clamp the lower clamping plates 11 onto the lower surface of the coupling. Finally, rotate the torsion bar 52 to disassemble the coupling. Install screw 5 to move it toward the pin and slowly press the pin, pushing it out of the positioning hole to complete the removal of the pin. During installation, simply place the lower clamp 11 against the lower surface of the coupling. There is a certain distance between the upper clamp 1 and the upper surface of the coupling, which is equal to the length of the pin. First, insert the pin into the positioning hole, and then rotate screw 5 through torsion bar 52 to press the pin into the positioning hole until the pin is fully inserted.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A quick-release device for coupling pins, characterized in that, include: Upper clamp (1); The screw rod (5) is disassembled and assembled. A threaded sleeve (4) is installed on the upper clamping plate (1) through a sleeve (3). The screw rod (5) is internally threaded to the threaded sleeve (4). The support block (8) has an arc-shaped plate (6) on the bottom plate of the upper clamping plate (1). Several locking screws (12) are rotatably connected to the bottom of the arc-shaped plate (6). A connecting plate (10) is sleeved around the locking screws (12). A cavity block (7) is installed between two adjacent connecting plates (10). A support block (8) is movably installed inside the cavity block (7). A displacement screw (9) is rotatably connected to one side of the support block (8). The displacement screw (9) passes through the cavity block (7). The lower clamping plate (11) is threaded around the locking screw (12). A guide rod (111) is provided on the lower clamping plate (11). The guide rod (111) passes through the connecting plate (10) and the arc plate (6).

2. The quick-release device for coupling pins according to claim 1, characterized in that, The support block (8) includes a guide block (81) and a wedge block (82). The guide block (81) is rotatably connected to the displacement screw (9). The wedge block (82) is fixed on the other side of the guide block (81). The cross-sectional length of the wedge block (82) becomes shorter and shorter in the direction away from the guide block (81).

3. The quick-release device for coupling pins according to claim 2, characterized in that, The wedge block (82) is inserted into the gap between the two half couplings, and there is a certain distance between the position of the wedge block (82) in the two half couplings and the corresponding pin.

4. The quick-release device for coupling pins according to claim 1, characterized in that, The upper clamping plate (1) is provided with several support plates (2), and a sleeve (3) is fixed between the several support plates (2). A support ring (31) is provided on the inner side of the sleeve (3). The threaded sleeve (4) is fitted inside the sleeve (3) and supported by the support ring (31). Several locking blocks (41) are provided on the outer side of the threaded sleeve (4). Several locking grooves (32) are opened inside the sleeve (3), and the locking blocks (41) are locked in the locking grooves (32).

5. The quick-release device for coupling pins according to claim 4, characterized in that, The threaded sleeve (4) is symmetrically divided into two halves.

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