Top rushing prevention device for hoisting equipment
By using a combination structure of springs, fixed blocks, and pressure blocks, the problems of large size, high cost, and limit switch failure in existing crane anti-collision devices are solved, achieving cost savings and improved safety.
Patent Information
- Application Number
- CN202520085236.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-01-15
AI Technical Summary
The existing anti-collision device for cranes requires the tie rod length to match the wire rope drum length, resulting in large equipment size and high cost. Furthermore, the tie rod is easily bent by impact, posing a safety hazard of limit switch failure.
The structure employs a combination of springs, fixing blocks, and pressure blocks. The springs maintain a perpendicular relationship with the wire rope drum, while the fixing blocks, screws, and pressure blocks clamp the wire rope. The anti-slip texture in the arc groove increases friction, enabling rapid installation and preventing slippage.
This reduces equipment costs, prevents the spring from detaching from the wire rope, ensures device stability, and improves safety and installation efficiency.
Smart Images
Figure CN223633005U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hoisting machinery technical field, concretely is a hoisting equipment anti -topping device. BACKGROUND
[0002] The crane is the multi -action hoisting machinery of vertical lifting and horizontal handling heavy object in a certain range, also called the overhead crane, the navigation, the crane, in the workshop, the wharf, the warehouse, various hoisting machines have hoist heavy object fast, convenient operation and low cost advantage, greatly improve production efficiency, reduce the labor intensity of workers, because its outstanding advantages, make it more and more common, but because the problem of its structure and the improper operation of workers, in actual use, accidents often occur due to hoisting height, there is certain security risk, in order to prevent the occurrence of accidents, will install anti -topping limiter on the crane.
[0003] The existing anti -topping device on the market, most of the pull rod limiting type, its main structure is the pull rod fixed on the reel shell, and the limiting block and limiting switch set at both ends are matched to complete;When working, the up and down movement of the steel wire rope causes the guide rope on the reel to move left and right, when the guide rope hits the limiting block, the limiting block triggers the limiting switch, thereby achieving the purpose of limiting and anti -topping. The length of the pull rod of this pull rod limiting type anti -topping device must be equal to the length of the steel wire rope reel, the higher the height of the starting equipment rises, the longer the pull rod, the larger the volume of the steel wire rope reel, which greatly increases the production cost. Moreover, the longer the pull rod is, the more easily it is bent, thereby causing the limiting to fail, and the life safety of the operator cannot be guaranteed. CONTENT OF THE UTILITY MODEL
[0004] In view of the above problems, the utility model provides a hoisting equipment anti -topping device;Solve the above problems.
[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a hoisting equipment anti -topping device, including the shell, the lower end of the shell is fixed with the cable joint and the fixed column, the cable joint is located on the outside of the fixed column, the right end of the fixed column is equipped with the stroke limiter fixedly connected with the shell, one end of the fixed column is rotatably connected with the lower end of the fixed column, the other end of the fixed column is rotatably connected with the spring, the telescopic end of the stroke limiter is connected with the connecting piece, the right end of the shell is fixed with the fixed block, the right end of the fixed block is fixed with the pressing block, the opposite sides of the fixed block and the pressing block are respectively equipped with the arc groove, the steel wire rope is fixed and clamped between the fixed block and the pressing block, the arc groove of the spring and the fixed block, the pressing block is on the same center line.
[0006] Preferably, the fixing block is an inverted U-shape, with a mounting hole at the center of the left end of the fixing block. A U-shaped screw is installed in the mounting hole, and both ends of the screw are provided with fixing plates that are fixedly connected to the fixing block. The pressure block passes through the screw and is fixedly connected to the fixing block.
[0007] Preferably, the arc-shaped grooves on the opposite sides of the fixing block and the pressure block are provided with anti-slip patterns, which are composed of multiple downward-pointing arrows stacked together.
[0008] Preferably, the connector has an elongated through hole, and the telescopic end of the travel limiter passes through the through hole and connects to the connector.
[0009] Preferably, the spring is frustum-shaped, with a smaller top and a larger bottom, and the upper end of the spring is bent into a ring, through which the spring is rotatably connected to the connector.
[0010] Preferably, the right end of the travel limiter is provided with a return spring that is fixedly connected to the outer shell, and the lower end of the return spring is fixedly connected to one end of the connecting spring of the connecting piece.
[0011] Preferably, the pressing block is cross-shaped.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. By setting the arc-shaped grooves of the spring and the fixed block to be on the same center line, the spring and the wire rope drum are always perpendicular during the upward movement of the wire rope drum. This makes it easy for the wire rope drum to lift the spring. At the same time, the spring is sleeved on the fixed end of the crane wire rope. This way, the spring does not need to be made very large, which can save costs and effectively prevent the spring from detaching from the crane wire rope.
[0014] 2. The device is fixed to the fixed end of the crane wire rope by means of the fixing block, screw and pressure block. The fixing block, screw and pressure block clamp and fix the wire rope, so that the device can be installed quickly. By setting anti-slip texture in the arc groove on the fixing block and pressure block, the friction between the fixing block and pressure block and the wire rope is increased, and the device is prevented from sliding on the wire rope. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 4The whole structure schematic view of the utility model.
[0019] Figure 5 The whole structure schematic view of the utility model.
[0020] In the figure, the annotation shows: 1, the shell; 2, cable joint; 3, fixed column; 4, stroke limiter; 5, connecting piece; 6, fixed block; 7, spring; 8, reset spring; 51, through hole; 61, mounting hole; 62, screw rod; 63, fixed sheet; 64, press block; 65, anti-skid pattern. DETAILED DESCRIPTION
[0021] The embodiment of the utility model will be described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.
[0022] Please refer to Figure 1 , Figure 2 and Figure 3 , a kind of hoisting equipment anti-impact device, including shell 1, the lower end of the shell 1 is fixed with cable joint 2 and fixed column 3, the cable joint 2 is located in the outer side of fixed column 3, the cable joint 2 is used to quickly connect cable, cable is fixed, the right end of the fixed column 3 is equipped with the stroke limiter 4 of fixed connection with shell 1, the stroke limiter 4 is prior art device, for generating electric signal, so that other prior art device makes corresponding reaction according to feedback, the lower end of the fixed column 3 is rotatably connected with the one end of fixed column 3, the other end of the fixed column 3 is rotatably connected with spring 7, the telescopic end of the stroke limiter 4 is connected with connecting piece 5, the right end of the shell 1 is fixed with fixed block 6.
[0023] Please refer to Figure 1 , Figure 2 and Figure 3The right end of the fixed block 6 is fixed with a pressing block 64, and the opposite sides of the fixed block 6 and the pressing block 64 are respectively provided with arc-shaped grooves. The steel wire rope is clamped and fixed between the fixed block 6 and the pressing block 64. The arc-shaped grooves of the fixed block 6 and the pressing block 64 are located on the same center line of the spring 7. By arranging the arc-shaped grooves of the fixed block 6 and the pressing block 64 on the same center line of the spring 7, the spring 7 and the steel wire rope drum always present a vertical relationship during the rising process of the steel wire rope drum, which facilitates the lifting of the spring 7 by the steel wire rope drum and simultaneously sleeves the spring 7 on the fixed end of the crane steel wire rope, so that the spring 7 does not need to be made very large, the cost can be saved, and the spring 7 is effectively prevented from being separated from the crane steel wire rope. The fixed block 6 is in a tilted concave shape. A mounting hole 61 is formed in the center of the left end of the fixed block 6. The fixed block 6 is arranged in a tilted concave shape. The positions of the protrusions at both ends of the fixed block 6 correspond to the clamping of the steel wire rope, which facilitates the positioning of the device and facilitates installation. A U-shaped screw rod 62 is mounted in the mounting hole 61. The both ends of the screw rod 62 are provided with fixed sheets 63 which are fixedly connected with the fixed block 6. The device is fixed on the fixed end of the crane steel wire rope by cooperation of the fixed block 6, the screw rod 62 and the pressing block 64. The fixed block 6, the screw rod 62 and the pressing block 64 clamp and fix the steel wire rope, so that the device realizes the effect of rapid installation. The pressing block 64 is fixedly connected with the fixed block 6 through the screw rod 62. Anti-skid lines 65 are arranged in the arc-shaped grooves on the opposite sides of the fixed block 6 and the pressing block 64. The anti-skid lines 65 are composed of a plurality of downward arrows stacked together. By arranging the anti-skid lines 65 in the arc-shaped grooves on the fixed block 6 and the pressing block 64, the friction between the fixed block 6, the pressing block 64 and the steel wire rope is increased, so that the device is prevented from sliding on the steel wire rope.
[0024] Please refer to Figure 4 and Figure 5 A long strip-shaped through hole 51 is formed on the connecting piece 5. The telescopic end of the stroke limiter 4 is connected with the connecting piece 5 through the through hole 51. The through hole 51 is arranged on the connecting piece 5, and the telescopic end of the stroke limiter 4 is connected with the connecting piece 5. The through hole 51 has a sliding allowance for the stroke limiter 4. When the spring 7 moves against the connecting piece 5, the telescopic end of the stroke limiter 4 moves against the connecting piece 5, which prevents the mutual jamming. The spring 7 is in a circular truncated cone shape with the upper end smaller than the lower end. The upper end of the spring 7 is bent with a circular ring. The spring 7 is rotatably connected with the connecting piece 5 through the circular ring. The spring 7 is arranged in a circular truncated cone shape, so that the spring 7 does not affect the steel wire rope during winding. A reset spring 8 is arranged at the right end of the stroke limiter 4 and is fixedly connected with the outer shell 1. The lower end of the reset spring 8 is connected with the connecting piece 5 and is fixedly connected with one end of the spring 7. The pressing block 64 is in a cross shape. The reset spring 8 is arranged to facilitate the restoration of the connecting piece 5 and prevent the connecting piece 5 from being lifted and then being unable to restore.
[0025] The utility model uses when:
[0026] First, the position of protruding of fixed block 6 both ends and the fixed end of crane wire rope carry out the joint corresponding, pass through screw rod 62 and use bolt to be tight, make the pressure block 64 to the wire rope carry out the clamping fixed, make the spring 7 sleeve connection on the wire rope, make the ring of spring 7 upper end and connecting piece 5 rotation connection, then, use in the process, the wire rope reel rises to certain height, the wire rope reel jacks up spring 7, spring 7 jacks up connecting piece 5 and rotates, finally, connecting piece 5 rotates and jacks up the retraction end of stroke limiter 4 and retracts, at this time, stroke limiter 4 generates electric signal, controls the winch mechanism of outside not to work, prevents the wire rope reel from continuing to rise, avoids the danger of wire rope reel to rush the top.
[0027] Although the embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A top strike prevention device for a hoisting apparatus, characterized by: The utility model provides a kind of cable joint, including shell (1), the lower end of shell (1) is fixed with cable joint (2) and fixed column (3), cable joint (2) is located outside fixed column (3), the right end of fixed column (3) is equipped with with shell (1) fixed connection's stroke limiter (4), the lower end of fixed column (3) is rotatably connected with fixed column (3) one end, the other end of fixed column (3) is rotatably connected with spring (7), the telescopic end of stroke limiter (4) is connected with connecting piece (5), the right end of shell (1) is fixed with fixed block (6), the right end of fixed block (6) is fixed with pressure block (64), the opposite side of fixed block (6) and pressure block (64) is equipped with arc slot respectively, steel wire rope is fixedly clamped between fixed block (6) and pressure block (64), spring (7) and the arc slot of fixed block (6), pressure block (64) are located on the same center line.
2. The anti-collision device for hoisting equipment according to claim 1, characterized in that: The fixed block (6) is inclined concave, the left end of the fixed block (6) is provided with a mounting hole (61) in the center, the mounting hole (61) is provided with a U-shaped screw rod (62), both ends of the screw rod (62) are provided with a fixed sheet (63) fixedly connected with the fixed block (6), the pressure block (64) is fixedly connected with the fixed block (6) through the screw rod (62).
3. The anti-collision device for hoisting equipment according to claim 1, characterized in that: The arc slot on the opposite side of the fixed block (6) and the pressure block (64) is provided with an anti-skid line (65), and the anti-skid line (65) is composed of a plurality of downward arrows stacked.
4. The anti-collision device for hoisting equipment according to claim 1, characterized in that: The connecting piece (5) is provided with a long strip-shaped through hole (51), and the telescopic end of the stroke limiter (4) is connected with the connecting piece (5) through the through hole (51).
5. The anti-collision device for hoisting equipment according to claim 1, characterized in that: The spring (7) is a circular truncated cone with small upper end and large lower end, the upper end of the spring (7) is bent with a circular ring, and the spring (7) is rotatably connected with the connecting piece (5) through the circular ring.
6. The anti-striking device of claim 1, wherein: The right end of the stroke limiter (4) is provided with a reset spring (8) fixedly connected with the shell (1), and the lower end of the reset spring (8) is connected with the connecting piece (5) and the spring (7).
7. The anti-striking device of claim 1, wherein: The pressure block (64) is a cross.