Crane roller cable anti-falling mechanism
By installing anti-derailment and stabilizing components on the crane drum, and using pressure sensors and electric push rods to tighten the cable, the problem of cable deformation in existing technologies is solved, achieving a more stable anti-derailment effect and ensuring the safe operation of the crane.
Patent Information
- Application Number
- CN202423094213.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-16
AI Technical Summary
Existing crane drum cable anti-derailment mechanisms are prone to deformation due to strong cable tension, resulting in poor anti-derailment performance.
It employs anti-detachment and stabilizing components, including an anti-detachment rod, restraint block, pressure sensor, electric actuator, and stabilizing frame. The pressure sensor detects the force when the cable detaches, triggering the electric actuator to tighten the cable, while the stabilizing frame provides support to prevent the cable from detaching.
It effectively prevents the cable from detaching from the drum, improves the stability and deformation resistance of the anti-detachment mechanism, and ensures the safe operation of the crane.
Smart Images

Figure CN223496052U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crane technology, specifically to a crane drum cable anti-derailment mechanism. Background Technology
[0002] A crane is a multi-action lifting machine that vertically lifts and horizontally moves heavy objects within a certain range. The crane drum cable anti-derailment mechanism is a component installed at the top of the drum to prevent the cable from detaching from the drum during winding, thus ensuring the safety of the crane during use.
[0003] Existing crane drum cable anti-derailment mechanisms mostly consist of a fixed rod installed at the top of the drum to prevent the cable from detaching. However, a single fixed rod anti-derailment structure is prone to deformation due to the strong tension during cable derailment, resulting in poor anti-derailment effect. Therefore, we propose a crane drum cable anti-derailment mechanism. Utility Model Content
[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.
[0005] Therefore, the technical solution adopted by this utility model is as follows:
[0006] A crane drum cable anti-derailment mechanism includes: a drum body, an anti-derailment component, and a stabilizing component; the drum body includes support seats at both ends and a base plate fixedly installed at the bottom of the support seats; the anti-derailment component includes an anti-derailment rod movably installed on the top of the drum body, restraint blocks fixedly installed on both sides of the upper end of the anti-derailment rod, a left restraint box and a right restraint box movably installed on the outer ends of the left and right restraint blocks on the upper part of the anti-derailment rod, a left pressure sensor and a right pressure sensor fixedly installed inside the left and right restraint boxes, a fixing plate fixedly installed on the top of the left and right restraint boxes, a pressure plate movably installed on the bottom of the fixing plate, and multiple sets of pressure blocks arranged and fixedly installed on the bottom of the pressure plate; the stabilizing component includes a stabilizing frame fixedly installed on both sides of the fixing plate, a locking strip fixedly installed on both sides of the inner end of the stabilizing frame, and a locking groove opened at both ends of the support seats.
[0007] Preferably, an electric actuator connected to the pressure plate is also fixedly installed at the center of the top of the fixed plate.
[0008] Preferably, an actuator is also fixedly installed on one side of the top of the fixed plate, and the left pressure sensor, the right pressure sensor and the electric push rod are all electrically connected to the actuator.
[0009] Preferably, reinforcing ribs are also fixedly installed on both sides of the anti-detachment rod.
[0010] Preferably, the lower part of both sides of the stabilizing frame is provided with a first mounting hole, and the lower part of the support base is provided with a second mounting hole, and bolts are movably installed in the first mounting hole and the second mounting hole.
[0011] Preferably, the card strip and the card slot are matched.
[0012] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:
[0013] 1. In this utility model, when the cable in the drum body is about to detach from the lower side of the anti-detachment rod, the cable will squeeze one side of the anti-detachment rod during the detachment process. After the anti-detachment rod is squeezed, the binding block at the upper end of the anti-detachment rod will press the left pressure sensor or the right pressure sensor in the left binding box or the right binding box. After the left pressure sensor or the right pressure sensor exceeds the basic pressure range during the squeezing, it will activate the electric push rod at the center of the fixed plate through the actuator. This allows the electric push rod to press the upper part of the anti-detachment rod firmly through the pressure plate and pressure block pressed at the bottom, thereby preventing the cable from detaching from both sides of the bottom of the anti-detachment rod.
[0014] 2. In this utility model, the two sides of the fixing plate are fixedly installed on the outer end of the two side support seats by the locking strip. Its stable structure can ensure the overall stable support of the fixing plate in the center, thereby ensuring the stability of the anti-detachment component during operation. Attached Figure Description
[0015] Figure 1 This is an overall structural diagram of the present invention;
[0016] Figure 2 This is a front view of the present invention;
[0017] Figure 3 This is a disassembly diagram of the fixing plate of this utility model;
[0018] Figure 4 This is a side sectional view of the fixing plate of this utility model;
[0019] Figure 5 This is a structural diagram of the anti-detachment rod of this utility model;
[0020] Figure 6 This is a structural diagram of the pressure plate of this utility model.
[0021] Figure label:
[0022] 100. Drum body; 101. Support base; 102. Base plate;
[0023] 200. Anti-detachment component; 201. Anti-detachment rod; 202. Restraint block; 203. Left restraint box; 204. Right restraint box; 205. Left pressure sensor; 206. Right pressure sensor; 207. Fixing plate; 208. Pressure plate; 209. Pressure block; 210. Electric actuator; 211. Actuator; 212. Reinforcing rib;
[0024] 300. Stabilizing component; 301. Stabilizing bracket; 302. Clip; 303. Slot; 304. First mounting hole; 305. Second mounting hole; 306. Bolt. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.
[0026] The following describes, with reference to the accompanying drawings, some embodiments of a crane drum cable anti-derailment mechanism provided by this utility model.
[0027] Example 1:
[0028] Combination Figure 1-6 As shown, the present invention provides a crane drum cable anti-derailment mechanism, comprising: a drum body 100, an anti-derailment component 200, and a stabilizing component 300; the drum body 100 includes support seats 101 at both ends and a base plate 102 fixedly installed at the bottom of the support seats 101; the anti-derailment component 200 includes an anti-derailment rod 201 movably installed on the top of the drum body 100, restraining blocks 202 fixedly installed on both sides of the upper end of the anti-derailment rod 201, a left restraining box 203 and a right restraining box 204 movably installed on the outer ends of the restraining blocks 202 on the left and right sides of the upper part of the anti-derailment rod 201, and a left restraining box 203 and a right restraining box 204 fixedly installed inside the left restraining box 203 and the right restraining box 204, respectively. The pressure sensor 205 and right pressure sensor 206, the left restraint box 203 and right restraint box 204 are fixedly mounted on a fixed plate 207, the fixed plate 207 is movably mounted on a pressure plate 208, and multiple sets of pressure blocks 209 are fixedly mounted on the bottom of the pressure plate 208. An electric push rod 210 that drives the pressure plate 208 is also fixedly mounted at the center of the top of the fixed plate 207. An actuator 211 is also fixedly mounted on one side of the top of the fixed plate 207. The left pressure sensor 205, right pressure sensor 206 and electric push rod 210 are all electrically connected to the actuator 211. Reinforcing ribs 212 are also fixedly mounted on both sides of the anti-detachment rod 201.
[0029] Specifically, a crane refers to a multi-action lifting machine that vertically lifts and horizontally moves heavy objects within a certain range. The crane drum cable anti-derailment mechanism is a component installed at the upper end of the drum to prevent the cable from detaching during winding. When the cable in the drum body 100 attempts to detach from the lower side of the anti-derailment rod 201, the cable will squeeze one side of the anti-derailment rod 201 during the detachment process. After being squeezed, the restraining block 202 at the upper end of the anti-derailment rod 201 will press down on the left pressure sensor 205 or right pressure sensor 206 inside the left restraining box 203 or right restraining box 204. When the pressure sensor 205 or the right pressure sensor 206 exceeds the basic pressure range during compression, the actuator 211 will activate the electric push rod 210 in the center of the fixed plate 207. This causes the electric push rod 210 to press firmly against the upper part of the anti-detachment rod 201 through the pressure plate 208 and pressure block 209 at the bottom, thereby preventing the cable from detaching from the bottom sides of the anti-detachment rod 201. The reinforcing ribs 212 fixedly installed on both sides of the anti-detachment rod 201 are mainly used to strengthen the overall strength and deformation resistance of the anti-detachment rod 201 to prevent deformation of the cable during strong compression.
[0030] Example 2:
[0031] Combination Figure 3 As shown, based on Embodiment 1, the stabilizing component 300 includes a stabilizing frame 301 fixedly installed on both sides of the fixing plate 207, a locking strip 302 fixedly installed on both sides of the inner end of the stabilizing frame 301, and a locking groove 303 opened at both ends of the support base 101. The lower part of both sides of the stabilizing frame 301 is also provided with a first mounting hole 304, and the lower part of the inner end of the support base 101 is also provided with a second mounting hole 305. Bolts 306 are movably installed in the first mounting hole 304 and the second mounting hole 305. The locking strip 302 and the locking groove 303 are matched.
[0032] Specifically, the fixing plate 207 is fixedly installed on both sides of the outer end of the support base 101 by the locking strip 302. Its stable structure can ensure the overall stable support of the fixing plate 207 in the center, thereby ensuring the stability of the anti-detachment component 200 during operation. The bolts 306 installed between the fixing frame 301 and the support base 101 mainly ensure the installation stability of the fixing frame 301.
[0033] Working principle and usage process of this utility model:
[0034] When the cable in the drum body 100 attempts to detach from the left side of the anti-detachment rod 201, the cable will press down on the left side of the anti-detachment rod 201 during the detachment process. After being pressed down, the restraining block 202 at the upper left end of the anti-detachment rod 201 will press down on the top left pressure sensor 205 within the left restraining box 203. After the left pressure sensor 205 exceeds the pressure range during the pressing process, it will transmit an electrical signal to the actuator 211. Upon receiving the electrical signal from the left pressure sensor 205, the actuator 211 will activate. The electric actuator 210 at the center of the fixed plate 207, when activated, presses down the bottom pressure plate 208, pressing the multiple sets of pressure blocks 209 at the bottom of the pressure plate 208 onto the anti-detachment rod 201, thereby pressing down the entire anti-detachment rod 201 to prevent the cable from coming off from the bottom left side of the anti-detachment rod 201. At the same time, the stabilizing frames 301 on both sides of the fixed plate 207 will ensure the stability of the upper binding block 202 of the anti-detachment rod 201 during pressing, thereby ensuring the stable operation of the anti-detachment component 200.
[0035] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A crane drum cable anti-derailment mechanism, characterized in that, include: The drum body (100), the anti-detachment component (200), and the stabilizing component (300) are all included. The drum body (100) includes support seats (101) at both ends and a base plate (102) fixedly installed at the bottom of the support seats (101); The anti-detachment assembly (200) includes an anti-detachment rod (201) movably installed on the top of the drum body (100), a restraint block (202) fixedly installed on both sides of the upper end of the anti-detachment rod (201), a left restraint box (203) and a right restraint box (204) movably installed on the outer ends of the restraint blocks (202) on the left and right sides of the upper part of the anti-detachment rod (201), a left pressure sensor (205) and a right pressure sensor (206) fixedly installed in the left restraint box (203) and the right restraint box (204), a fixing plate (207) fixedly installed on the top of the left restraint box (203) and the right restraint box (204), a pressure plate (208) movably installed on the bottom of the fixing plate (207), and multiple sets of pressure blocks (209) arranged and fixedly installed on the bottom of the pressure plate (208). The stabilizing component (300) includes a stabilizing frame (301) fixedly installed on both sides of the fixing plate (207), a locking strip (302) fixedly installed on both sides of the inner end of the stabilizing frame (301), and a locking groove (303) opened at both ends of the support base (101).
2. The crane drum cable anti-derailment mechanism according to claim 1, characterized in that, An electric actuator (210) that is connected to the pressure plate (208) is also fixedly installed at the center of the top of the fixed plate (207).
3. The crane drum cable anti-derailment mechanism according to claim 1, characterized in that, An actuator (211) is also fixedly installed on one side of the top of the fixed plate (207), and the left pressure sensor (205), the right pressure sensor (206) and the electric push rod (210) are all electrically connected to the actuator (211).
4. The crane drum cable anti-derailment mechanism according to claim 1, characterized in that, The anti-detachment rod (201) is also fixedly installed with reinforcing ribs (212) on both sides.
5. A crane drum cable anti-derailment mechanism according to claim 1, characterized in that, The lower part of both sides of the stabilizing frame (301) is provided with a first mounting hole (304), and the lower part of the support base (101) is provided with a second mounting hole (305). Bolts (306) are movably installed in the first mounting hole (304) and the second mounting hole (305).
6. The crane drum cable anti-derailment mechanism according to claim 1, characterized in that, The card strip (302) is matched with the card slot (303).