A traction machine with overload protection function

Abstract

The utility model provides a traction machine with an overload protection function, comprising a containing frame, a containing box is fixedly connected to the inside of the containing frame, a winding roller is rotatably arranged in the inner cavity of the containing box, a rope is wound around the surface of the winding roller, the other end of the rope is pulled and extended to the outside of the containing box, and the containing box is fixedly connected, a steel rope is arranged inside the containing box, and the other end of the steel rope is pulled and extended to the outside of the containing box. The traction machine with an overload protection function can pull the containing box to rise during the rope winding process, and can drive the pressure plate to descend in the inside of the containing box through the connection between the steel rope and the hook, and can detect the weight of the traction object or equipment hung on the surface of the hook after the lower surface of the pressure plate contacts the surface of the pressure sensor, so as to avoid the situation where the overloaded lifting of the hook causes damage to the motor, thereby improving the protection of the traction machine and extending the service life of the traction machine.

Description

Technical Field

[0001] The utility model relates to the technical field of traction machines, in particular to a traction machine with an overload protection function. Background Art

[0002] A traction machine is a mechanical device used to pull or push equipment. It is widely used in power construction, railways, mining, aviation and other fields. The traction machine is driven by electricity, fuel and other energy sources to transfer the output power to the transmission system, thereby pushing or pulling the equipment to move.

[0003] In the prior art, most traction machines used in power construction do not have an overload protection function. When operating, workers are unable to accurately determine the weight of the towed object. The towed object is overloaded, resulting in an inability to lift the towed object, causing damage to the traction machine, increasing the maintenance cost of the traction equipment, and shortening the service life of the traction machine.

[0004] Therefore, it is necessary to provide a new traction machine with overload protection function to solve the above technical problems. Summary of the invention

[0005] The utility model provides a traction machine with an overload protection function, which solves the technical problem that most traction machines do not have the overload protection function, and when workers operate, the weight of the traction object is overloaded, which easily causes damage to the traction machine.

[0006] In order to solve the above technical problems, the utility model provides a traction machine with an overload protection function, comprising a containing frame, a containing box is fixedly connected to the inside of the containing frame, a winding roller is rotatably arranged in the inner cavity of the containing box, a rope is wound around the surface of the winding roller, the other end of the rope is pulled out to extend to the outside of the containing box and is fixedly connected to the containing box, a steel rope is arranged inside the containing box, the other end of the steel rope is pulled out to extend to the outside of the containing box, and a hook is detachably connected to the connecting part, the bottom end of the steel rope is fixedly connected to a pressure plate, the inner cavity of the containing box is fixedly connected to a fixing plate, and the upper surface of the fixing plate is fixedly connected to a pressure sensor located below the pressure plate;

[0007] A clamping mechanism capable of locking the rope is arranged at the lower part of the inner wall of the accommodating frame, and a mounting structure is arranged at the top of the accommodating frame.

[0008] Preferably, the clamping mechanism includes a plurality of support plates, and the plurality of support plates are respectively fixedly connected to the front end and the rear end of the bottom of both sides of the inner wall of the accommodating frame, and a hydraulic cylinder is arranged on the support plate, and the inner end of the hydraulic cylinder is fixedly connected to the clamping plate, and the inner side surface of the clamping plate is fixedly connected to the clamping block.

[0009] Preferably, the mounting structure comprises a mounting plate, the mounting plate is fixedly connected to the top of the accommodating frame, and a plurality of mounting holes are formed on the surface of the mounting plate.

[0010] Preferably, the front end surface of the containing box is fixedly connected to a motor, the inner cavity of the containing box is rotatably connected to a rotating rod, the winding roller is fixedly connected to the surface of the rotating rod, the front end of the rotating rod extends to the outside of the containing box and is fixedly connected to the output shaft of the motor.

[0011] Preferably, the top of the inner wall of the hook is rotatably connected to an anti-slip plate, and a spring is fixedly connected between the top of the inner side surface of the anti-slip plate and the inner wall surface of the hook.

[0012] Preferably, a maintenance cover is detachably connected to the surface of the containing box by means of a plurality of screws.

[0013] Compared with the related art, the traction machine with overload protection function provided by the utility model has the following beneficial effects:

[0014] The utility model provides a traction machine with an overload protection function. After the hook is connected to the equipment or the traction object, the rope can be reeled in by rotating the reeling roller. During the rope reeling process, the accommodating box is pulled to rise, and the pressure plate can be driven to descend in the accommodating box through the connection between the steel rope and the hook. After the lower surface of the pressure plate contacts the surface of the pressure sensor, the weight of the traction object or the equipment hung on the surface of the hook can be detected, so as to avoid the situation that the overload lifting of the hook causes damage to the motor, improve the protection of the traction machine, extend the service life of the traction machine, reduce the maintenance cost of the traction machine, and after the traction is suspended, the hydraulic cylinder can be extended to drive the two clamping plates to approach each other, and after the two clamping blocks contact the surface of the rope, the rope can be clamped and fixed, the suspended rope can be locked, the force on the motor can be reduced, and the motor can be better protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural schematic diagram of a preferred embodiment of a traction machine with an overload protection function provided by the utility model;

[0016] Figure 2 for Figure 1 The structural schematic diagram of the containing frame and the containing box shown;

[0017] Figure 3 for Figure 1 Schematic diagram of the structure of the hydraulic cylinder and the clamping plate shown.

[0018] Numbers in the figure: 1. accommodating frame; 2. mounting plate; 3. mounting hole; 4. accommodating box; 5. motor; 6. rotating rod; 7. winding roller; 8. rope; 9. accommodating box; 10. steel rope; 11. anti-slip plate; 12. fixing plate; 13. pressure plate; 14. pressure sensor; 15. connecting part; 16. hook; 17. supporting plate; 18. hydraulic cylinder; 19. clamping plate; 20. clamping block; 21. spring. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0020] Please refer to Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A structural schematic diagram of a preferred embodiment of a traction machine with an overload protection function provided by the utility model; Figure 2 for Figure 1 The structural schematic diagram of the containing frame and the containing box shown; Figure 3 for Figure 1 The traction machine with overload protection function comprises a receiving frame 1, a receiving box 4 is fixedly connected to the receiving frame 1, a winding roller 7 is rotatably arranged in the inner cavity of the receiving box 4, and a rope 8 is wound around the surface of the winding roller 7.

[0021] The other end of the rope 8 is pulled out to extend to the outside of the storage box 4 and is fixedly connected to the storage box 9. A steel rope 10 is arranged inside the storage box 9. The other end of the steel rope 10 is pulled out to extend to the outside of the storage box 9 and is detachably connected to the hook 16 through the connecting part 15.

[0022] The bottom end of the steel rope 10 is fixedly connected with a pressure plate 13 , the inner cavity of the accommodating box 9 is fixedly connected with a fixing plate 12 , and the upper surface of the fixing plate 12 is fixedly connected with a pressure sensor 14 located below the pressure plate 13 .

[0023] A clamping mechanism capable of locking the rope 8 is provided at the lower part of the inner wall of the containing frame 1 , and a mounting structure is provided at the top of the containing frame 1 .

[0024] After the hook 16 is connected to the equipment or the towing object, the rope 8 can be wound up by rotating the winding roller 7. During the winding process of the rope 8, the containing box 9 is pulled up. Through the connection between the steel rope 10 and the hook 16, the pressure plate 13 can be driven to descend inside the containing box 9. After the lower surface of the pressure plate 13 contacts the surface of the pressure sensor 14, the weight of the towing object or equipment hung on the surface of the hook 16 can be detected.

[0025] Avoid the situation where the hook 16 is overloaded and pulled to cause damage to the motor 5, improve the protection of the traction machine, extend the service life of the traction machine, and reduce the maintenance cost of the traction machine.

[0026] The clamping mechanism includes a plurality of support plates 17, which are respectively fixedly connected to the front end and the rear end of the bottom of the inner wall of the containing frame 1. A hydraulic cylinder 18 is arranged on the support plate 17, and a clamping plate 19 is fixedly connected to the inner end of the hydraulic cylinder 18, and a clamping block 20 is fixedly connected to the inner side surface of the clamping plate 19.

[0027] After lifting and suspending, the hydraulic cylinder 18 extends to drive the two clamping plates 19 to approach each other. After the two clamping blocks 20 contact the surface of the rope 8, the rope 8 can be clamped and fixed, and the suspended rope 8 can be locked to reduce the force on the motor 5 and better protect the motor 5.

[0028] The mounting structure includes a mounting plate 2, which is fixedly connected to the top of the receiving frame 1. A plurality of mounting holes 3 are provided on the surface of the mounting plate 2. The mounting plate 2 and the mounting holes 3 facilitate the connection and fixation of the receiving frame 1 with a mounting platform or a mounting frame.

[0029] The front end face of the containing box 4 is fixedly connected to a motor 5, the inner cavity of the containing box 4 is rotatably connected to a rotating rod 6, a winding roller 7 is fixedly connected to the surface of the rotating rod 6, the front end of the rotating rod 6 extends to the outside of the containing box 4 and is fixedly connected to the output shaft of the motor 5.

[0030] After the motor 5 is working, it can drive the rotating rod 6 to rotate, and then drive the winding roller 7 to rotate, so as to facilitate the winding or releasing of the rope 8.

[0031] The top of the inner wall of the hook 16 is rotatably connected with an anti-slip plate 11 , and a spring 21 is fixedly connected between the top of the inner side surface of the anti-slip plate 11 and the inner wall surface of the hook 16 .

[0032] After the hook 16 is hooked with the towing object or equipment, the elastic force of the spring 21 pushes the anti-drop plate 11 to contact the other end of the inner wall of the hook 16, thereby preventing the towing object or equipment from falling off.

[0033] The surface of the containing box 4 is detachably connected with an inspection cover by means of a plurality of screws.

[0034] The working principle of the traction machine with overload protection function provided by the utility model is as follows:

[0035] After the hook 16 is connected to the equipment or the towing object, the rope 8 can be wound up by rotating the winding roller 7. During the winding process of the rope 8, the containing box 9 is pulled up, and the pressure plate 13 can be driven to descend in the inside of the containing box 9 through the connection between the steel rope 10 and the hook 16. After the lower surface of the pressure plate 13 contacts the surface of the pressure sensor 14, the weight of the towing object or equipment hung on the surface of the hook 16 can be detected to avoid the situation where the hook 16 is overloaded and pulled to cause damage to the motor 5. After lifting and hovering, the hydraulic cylinder 18 can extend to drive the two clamping plates 19 to approach each other. After the two clamping blocks 20 contact the surface of the rope 8, the rope 8 can be clamped and fixed, and the suspended rope 8 can be locked.

[0036] Compared with the related art, the traction machine with overload protection function provided by the utility model has the following beneficial effects:

[0037] The utility model provides a traction machine with an overload protection function. After the hook 16 is connected to the equipment or the traction object, the rope 8 can be wound up by rotating the winding roller 7. During the winding process of the rope 8, the accommodating box 9 is pulled to rise. The pressure plate 13 can be driven to descend in the accommodating box 9 by connecting the steel rope 10 with the hook 16. After the lower surface of the pressure plate 13 contacts the surface of the pressure sensor 14, the weight of the traction object or equipment hung on the surface of the hook 16 can be detected, so as to avoid the situation that the overload lifting of the hook 16 causes damage to the motor 5, thereby improving the protection of the traction machine, extending the service life of the traction machine, and reducing the maintenance cost of the traction machine. After the traction machine is suspended, the hydraulic cylinder 18 is extended to drive the two clamping plates 19 to approach each other. After the two clamping blocks 20 contact the surface of the rope 8, the rope 8 can be clamped and fixed, the suspended rope 8 can be locked, the force on the motor 5 can be reduced, and the motor 5 can be better protected.

[0038] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A traction machine with an overload protection function, comprising a containing frame (1), characterized in that: The interior of the containing frame (1) is fixedly connected to a containing box (4), the inner cavity of the containing box (4) is rotatably provided with a winding roller (7), the surface of the winding roller (7) is wound with a rope (8), the other end of the rope (8) is pulled out to extend to the outside of the containing box (4), and is fixedly connected to a containing box (9), a steel rope (10) is provided inside the containing box (9), the other end of the steel rope (10) is pulled out to extend to the outside of the containing box (9), and is detachably connected to a hook (16) through a connecting portion (15), the bottom end of the steel rope (10) is fixedly connected to a pressure plate (13), the inner cavity of the containing box (9) is fixedly connected to a fixing plate (12), and the upper surface of the fixing plate (12) is fixedly connected to a pressure sensor (14) located below the pressure plate (13); A clamping mechanism capable of locking the rope (8) is provided at the lower part of the inner wall of the containing frame (1), and a mounting structure is provided at the top of the containing frame (1).

2. The traction machine with overload protection function according to claim 1, characterized in that: The clamping mechanism comprises a plurality of support plates (17), wherein the plurality of support plates (17) are respectively fixedly connected to the front end and the rear end of the bottom of both sides of the inner wall of the containing frame (1), a hydraulic cylinder (18) is arranged on the support plate (17), the inner end of the hydraulic cylinder (18) is fixedly connected to a clamping plate (19), and the inner side surface of the clamping plate (19) is fixedly connected to a clamping block (20).

3. The traction machine with overload protection function according to claim 1, characterized in that: The mounting structure comprises a mounting plate (2), the mounting plate (2) being fixedly connected to the top of the containing frame (1), and a plurality of mounting holes (3) being provided on the surface of the mounting plate (2).

4. The traction machine with overload protection function according to claim 1, characterized in that: The front end surface of the containing box (4) is fixedly connected to a motor (5), the inner cavity of the containing box (4) is rotatably connected to a rotating rod (6), the winding roller (7) is fixedly connected to the surface of the rotating rod (6), the front end of the rotating rod (6) extends to the outside of the containing box (4) and is fixedly connected to the output shaft of the motor (5).

5. The traction machine with overload protection function according to claim 1, characterized in that: The top of the inner wall of the hook (16) is rotatably connected to an anti-slip plate (11), and a spring (21) is fixedly connected between the top of the inner side surface of the anti-slip plate (11) and the inner wall surface of the hook (16).

6. The traction machine with overload protection function according to claim 1, characterized in that: The surface of the containing box (4) is detachably connected with an inspection cover plate via a plurality of screws.

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