Rope falling prevention device of luffing mechanism
By designing an anti-derailment device for the luffing mechanism with reinforcement and guiding components, the problem of existing devices being unable to simultaneously fix two wire ropes and limit their position is solved, achieving stable clamping and guidance of the wire ropes and improving safety.
Patent Information
- Application Number
- CN202423132536.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-18
AI Technical Summary
The existing anti-derailment device for luffing mechanisms cannot simultaneously secure two wire ropes and cannot restrict the position of the wire ropes on the guide wheel, resulting in the wire ropes being prone to detachment and low safety.
An anti-derailment device including reinforcement components and guide components was designed. The active frame and clamping plate are driven by a cylinder to clamp the wire rope, and the position of the wire rope is limited by guide wheels and limit frames to ensure stable clamping and guidance of the two wire ropes.
It effectively prevents the wire rope from coming off, improves the safety and anti-derailment effect of the luffing mechanism, and reduces the risk of wire rope coming off.
Smart Images
Figure CN223509548U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of anti-rope slippage equipment for luffing mechanisms, and in particular to an anti-rope slippage device for luffing mechanisms. Background Technology
[0002] A luffing mechanism anti-derailment device is a safety protection device used in luffing mechanisms (such as the boom luffing system of a crane) to specifically prevent the wire rope from detaching from its normal operating position. It plays a crucial role in the overall safety system of the luffing mechanism. Existing luffing mechanism anti-derailment devices cannot simultaneously secure two wire ropes. Once one wire rope shows signs of loosening due to abnormal tension, vibration, or wear, the other wire rope is also easily affected and loses its stable clamping state, severely disrupting the normal operation of the luffing mechanism and increasing the risk of wire rope detachment. The anti-derailment effect is weak. Furthermore, it cannot restrict the position of the wire rope on the guide pulley, making it easy for the wire rope to jump off the guide pulley, leading to a derailment accident, resulting in low safety. Utility Model Content
[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a rope-prevention device for a variable amplitude mechanism.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a variable amplitude mechanism anti-rope slippage device, comprising a fixed platform, a guide component connected to the top of the fixed platform, and a reinforcement component connected to the bottom of the fixed platform;
[0005] The reinforcement component includes a mounting frame, one end of which is fixedly connected to the bottom of a fixed platform. A cylinder is fixedly connected inside the mounting frame, and a drive block is fixedly connected to the output end of the cylinder. An active frame is fixedly connected to one end of the drive block, and active plates are fixedly connected to both ends of the active frame. There are two sets of active plates, and each set of active plates has a limit groove. A limit block is slidably connected inside the limit groove. One end of the limit block passes through the limit groove and is rotatably connected to a connecting plate. A limit rod is rotatably connected to the middle of the connecting plate. One end of the limit rod is fixedly connected to the bottom of the fixed platform, and a driven plate is rotatably connected to one end of the connecting plate. A fixed plate is fixedly connected to one end of the driven plate, and a connecting rod is fixedly connected to the top of the fixed plate. A sliding groove is provided inside the fixed platform, and a clamping plate is fixedly connected to one end of the connecting rod through the sliding groove.
[0006] As a further description of the above technical solution:
[0007] The guide assembly includes a fixed frame, the bottom of which is fixedly connected to the top of the fixed platform, a guide wheel is rotatably connected to the inner side of the fixed frame, and a limit frame is fixedly connected to the top of the fixed frame.
[0008] As a further description of the above technical solution:
[0009] A spring is fixedly connected to the inner side of the clamping plate, and a pad is fixedly connected to one end of the spring.
[0010] As a further description of the above technical solution:
[0011] A support frame is fixedly connected to the top of the fixed platform, and a fixed shaft is rotatably connected inside the support frame.
[0012] As a further description of the above technical solution:
[0013] The bottom of the fixed platform is fixedly connected to two sets of base frames.
[0014] As a further description of the above technical solution:
[0015] An arc-shaped groove is provided at the top of the inner part of the limiting frame.
[0016] As a further description of the above technical solution:
[0017] The clamping plate is located at the front end of the fixed shaft.
[0018] This utility model has the following beneficial effects:
[0019] 1. In this utility model, by means of a reinforcing component, two wire ropes can be fixed at the same time. Even if one wire rope shows signs of loosening due to abnormal tension, vibration or wear, the other wire rope can still be firmly clamped to maintain the normal operation of the luffing mechanism, reduce the risk of wire rope detachment, and enhance the anti-detachment effect of the luffing mechanism anti-rope device.
[0020] 2. In this utility model, the guide component can restrict the position of the wire rope on the guide wheel, effectively preventing the wire rope from jumping off the guide wheel, thereby avoiding the occurrence of rope derailment accidents and improving the safety of the anti-derailment device of the luffing mechanism. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of an anti-derailment device for a luffing mechanism proposed in this utility model. Figure 1 ;
[0022] Figure 2 This is a schematic diagram of the overall structure of an anti-derailment device for a luffing mechanism proposed in this utility model. Figure 2 ;
[0023] Figure 3 This is a partial structural diagram of an anti-derailment device for a luffing mechanism proposed in this utility model. Figure 1 ;
[0024] Figure 4This is a partial structural diagram of an anti-derailment device for a luffing mechanism proposed in this utility model. Figure 2 .
[0025] Legend:
[0026] 1. Fixed platform; 2. Reinforcing components; 3. Mounting bracket; 4. Cylinder; 5. Drive block; 6. Active frame; 7. Active plate; 8. Limiting groove; 9. Limiting block; 10. Connecting plate; 11. Limiting rod; 12. Driven plate; 13. Fixed plate; 14. Connecting rod; 15. Slide groove; 16. Clamping plate; 17. Spring; 18. Pad; 19. Guide assembly; 20. Fixed frame; 21. Guide wheel; 22. Limiting frame; 23. Arc groove; 24. Support frame; 25. Fixed shaft; 26. Base frame. Detailed Implementation
[0027] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Reference Figures 1-4 The present invention provides an embodiment of a variable amplitude mechanism anti-rope detachment device, comprising a fixed platform 1, a guide component 19 connected to the top of the fixed platform 1, and a reinforcing component 2 connected to the bottom of the fixed platform 1;
[0029] The reinforcement component 2 includes a mounting frame 3. One end of the mounting frame 3 is fixedly connected to the bottom of the fixed platform 1. A cylinder 4 is fixedly connected inside the mounting frame 3. A drive block 5 is fixedly connected to the output end of the cylinder 4. An active frame 6 is fixedly connected to one end of the drive block 5. Active plates 7 are fixedly connected to both ends of the active frame 6. There are two sets of active plates 7. Each set of active plates 7 has a limit groove 8. A limit block 9 is slidably connected inside the limit groove 8. A connecting plate 10 is rotatably connected to one end of the limit block 9 through the limit groove 8. A limit rod 11 is rotatably connected to the middle of the connecting plate 10. One end of the limit rod 11 is fixedly connected to the bottom of the fixed platform 1. A driven plate 12 is rotatably connected to one end of the connecting plate 10. A fixed plate 13 is fixedly connected to one end of the driven plate 12. A connecting rod 14 is fixedly connected to the top of the fixed plate 13. A sliding groove 15 is opened inside the fixed platform 1. A clamping plate 16 is fixedly connected to one end of the connecting rod 14 through the sliding groove 15.
[0030] The guide assembly 19 includes a fixed frame 20, the bottom of which is fixedly connected to the top of the fixed platform 1. A guide wheel 21 is rotatably connected to the inside of the fixed frame 20 to ensure the movement path of the wire rope. A limit frame 22 is fixedly connected to the top of the fixed frame 20. A spring 17 is fixedly connected to the inside of the clamping plate 16. When the diameter of the wire rope increases or decreases slightly due to factors such as load changes or temperature changes, the spring 17 can contract or extend accordingly. A pad 18 is fixedly connected to one end of the spring 17. A support frame 24 is fixedly connected to the top of the fixed platform 1. A fixed shaft 25 is rotatably connected inside the support frame 24. Two sets of base frames 26 are fixedly connected to the bottom of the fixed platform 1. An arc-shaped groove 23 is opened at the top of the limit frame 22 to fit the shape of the wire rope. The clamping plate 16 is located at the front end of the fixed shaft 25.
[0031] Working principle: Two steel wire ropes are placed inside the clamping plate 16 and pass through the limiting frame 22. When the steel wire ropes move, they can prevent them from jumping out of the guide wheel 21, thus avoiding rope derailment accidents and improving safety. Then, the cylinder 4 is activated, which pushes the drive block 5 to move. The drive block 5 drives the drive plate 7 to move through the active frame 6. The movement of the drive plate 7 causes the limiting block 9 to slide inside the limiting groove 8. The limiting block 9 drives the connecting plate 10 to move. The connecting plate 10 rotates at the lower end of the limiting rod 11, thereby driving the fixed plate 13 to move through the driven plate 12. The fixed plate 13 drives the connecting rod 14 to slide inside the slide groove 15. The slide groove 15 drives the clamping plate 16 to move. The clamping plate 16 drives the pad 18 to approach and fix the two steel wire ropes through the spring 17, enhancing the anti-derailment effect.
[0032] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer for control. The detailed description of known functions and components is omitted in the specific implementation of this disclosure. To ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A rope-prevention device for a luffing mechanism, comprising a fixed platform (1), characterized in that: The top of the fixed platform (1) is connected to a guide component (19), and the bottom of the fixed platform (1) is connected to a reinforcing component (2); The reinforcement component (2) includes a mounting frame (3), one end of which is fixedly connected to the bottom of the fixed platform (1). A cylinder (4) is fixedly connected inside the mounting frame (3). A drive block (5) is fixedly connected to the output end of the cylinder (4). An active frame (6) is fixedly connected to one end of the drive block (5). An active plate (7) is fixedly connected to both ends of the active frame (6). The active plate (7) has two sets. Each set of the active plates (7) has a limit groove (8) inside. A limit block (9) is slidably connected inside the limit groove (8). One end of the connecting plate (10) is rotatably connected to the limiting groove (8). The middle part of the connecting plate (10) is rotatably connected to the limiting rod (11). One end of the limiting rod (11) is fixedly connected to the bottom of the fixed platform (1). One end of the connecting plate (10) is rotatably connected to the driven plate (12). One end of the driven plate (12) is fixedly connected to the fixed plate (13). The top of the fixed plate (13) is fixedly connected to the connecting rod (14). The fixed platform (1) has a sliding groove (15) inside. One end of the connecting rod (14) passes through the sliding groove (15) and is fixedly connected to the clamping plate (16).
2. The anti-derailment device for a luffing mechanism according to claim 1, characterized in that: The guide assembly (19) includes a fixed frame (20), the bottom of which is fixedly connected to the top of the fixed platform (1), a guide wheel (21) is rotatably connected to the inner side of the fixed frame (20), and a limit frame (22) is fixedly connected to the top of the fixed frame (20).
3. The anti-derailment device for a luffing mechanism according to claim 1, characterized in that: A spring (17) is fixedly connected to the inner side of the clamp (16), and a pad (18) is fixedly connected to one end of the spring (17).
4. The anti-derailment device for a luffing mechanism according to claim 1, characterized in that: The top of the fixed platform (1) is fixedly connected to a support frame (24), and a fixed shaft (25) is rotatably connected inside the support frame (24).
5. The anti-derailment device for a luffing mechanism according to claim 1, characterized in that: The bottom of the fixed platform (1) is fixedly connected to two sets of base frames (26).
6. The anti-derailment device for a luffing mechanism according to claim 2, characterized in that: An arc-shaped groove (23) is provided at the top of the inner end of the limiting frame (22).
7. The anti-derailment device for a luffing mechanism according to claim 1, characterized in that: The clamp (16) is located at the front end of the fixed shaft (25).