A lever-type anti-tipping clamp for steel coils

Abstract

This utility model relates to the field of steel coil clamping technology, specifically a lever-type anti-tipping clamp for steel coils, comprising a steel coil body and a fixing frame. The fixing frame and the steel coil body are clamped together. The fixing frame includes a crossbeam, a first side gripper, and a second side gripper. The tops of the first and second side grippers are rotatably connected via suspension blocks. A shock-absorbing pad is fixedly connected to the bottom of the crossbeam. This utility model achieves stable clamping and anti-tipping protection for the steel coil through the clamping structure of the fixing frame. The first and second side grippers form a lever fulcrum through the suspension blocks, and together with the triangular stable structure formed by the first and second movable rods, it solves the problem of weak anti-tipping capability in existing technologies. The two sets of shock-absorbing pads at the bottom of the crossbeam, through the synergistic action of damping rods and shock-absorbing springs, can absorb the inertial impact force during hoisting start and stop, further enhancing clamping stability.

Description

Technical Field

[0001] This utility model relates to the field of steel coil clamping technology, and in particular to a lever-type anti-tipping clamp for steel coils. Background Technology

[0002] As the main finished product of steel production, steel coils are characterized by their large weight (usually several tons to tens of tons), high center of gravity, and smooth surface. The safety and efficiency of their handling process directly affect the stability of the production logistics process. Steel coil clamps, as special lifting tools, achieve clamping and fixing by contacting the surface or inner hole of the steel coil, and are key components connecting cranes and steel coils.

[0003] In existing technologies, steel coil clamps have weak anti-tipping capabilities. Traditional clamps mostly rely on a single clamping force to fix the steel coil and lack auxiliary support structures. When swaying occurs or the center of gravity of the steel coil shifts during hoisting, it is easy to cause a side-tipping and falling accident, resulting in weak anti-tipping capabilities. Secondly, traditional clamps mostly rely on a single clamping force to fix the steel coil and lack auxiliary support structures. When swaying occurs or the center of gravity of the steel coil shifts during hoisting, it is easy to cause a side-tipping and falling accident. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of weak anti-tipping ability and lack of vibration buffer in the existing technology, which cause swaying during hoisting, and to propose a lever-type steel coil anti-tipping clamp.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a lever-type anti-tipping clamp for steel coils, comprising a steel coil body and a fixing frame, wherein the fixing frame and the steel coil body are in a clamping relationship, the fixing frame comprising a crossbeam, a first side gripper and a second side gripper, the first side gripper and the second side gripper being located on both sides of the crossbeam, the tops of the first side gripper and the second side gripper being rotatably connected by a suspension block, the first side gripper and the second side gripper being slidably connected to the crossbeam, and a shock-absorbing pad being fixedly connected to the bottom of the crossbeam.

[0006] Furthermore, the outer surface of the crossbeam is provided with a sliding groove, and a first movable rod is rotatably connected to the outer surface of the crossbeam. The end of the first movable rod away from the crossbeam is rotatably connected to the outer surface of the first side gripper. A second movable rod is rotatably connected to the outer surface of the crossbeam. The end of the second movable rod away from the crossbeam is rotatably connected to the outer surface of the second side gripper. The first movable rod and the second movable rod are triangularly distributed, and the ends of the first movable rod and the second movable rod near the crossbeam are rotatably connected to each other.

[0007] Furthermore, the first side gripper and the second side gripper are symmetrically distributed on both sides of the crossbeam, and the first movable rod and the second movable rod are symmetrically distributed on both sides of the outer surface of the crossbeam.

[0008] Furthermore, the first side gripper includes a telescopic rod slidably connected to the crossbeam, a gripping arm is fixedly connected to the end of the telescopic rod away from the crossbeam, the side of the telescopic rod is fixedly connected to the gripping arm, a support rod is movably connected to the top of the gripping arm, and the end of the support rod away from the gripping arm is movably connected to the suspension block.

[0009] Furthermore, the damping pad includes a damping rod fixedly connected to the bottom of the crossbeam, a damping spring is sleeved on the outer surface of the damping rod, and a rubber pad is fixedly connected to the bottom end of the damping rod.

[0010] Furthermore, there are two sets of the shock-absorbing pads at the bottom of the crossbeam, and the two sets of the shock-absorbing pads are symmetrically distributed at the bottom of the crossbeam.

[0011] Furthermore, the bottom end of the gripper arm is L-shaped, and an anti-slip layer is provided on the surface of the bottom end of the gripper arm that is in contact with the steel coil body.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the clamping structure of the fixed frame achieves stable clamping and anti-tipping protection of the steel coil, solving the problem of weak anti-tipping capability in the prior art. The first side gripper and the second side gripper form a lever fulcrum through the suspension block. Combined with the triangular stable structure formed by the first movable rod and the second movable rod, the clamping force increases synchronously with the weight of the steel coil, forming a self-weight force amplification effect. The L-shaped gripper arm achieves wrap-around clamping from both sides and the bottom of the steel coil. The top support rod further enhances the rigidity of the gripper arm, effectively preventing the steel coil from tipping over. The anti-slip layer increases the contact friction and avoids slippage during hoisting.

[0013] 2. In this utility model, the two sets of shock-absorbing pads at the bottom of the crossbeam can absorb the inertial impact force during hoisting start and stop through the synergistic action of the damping rod and the shock-absorbing spring. The rubber pads are in direct flexible contact with the surface of the steel coil, which not only avoids damage to the steel coil caused by rigid collision, but also further enhances the clamping stability and reduces operating noise. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a lever-type steel coil anti-tipping clamp is provided for this utility model; Figure 2 This utility model provides a structural schematic diagram of the fixing frame in a lever-type steel coil anti-tipping clamp; Figure 3 This utility model provides a schematic diagram of the disassembled structure of a lever-type steel coil anti-tipping clamp; Figure 4 This utility model provides a structural diagram of the crossbeam and the first side gripper in a lever-type steel coil anti-tipping clamp; Figure 5This utility model relates to a lever-type anti-tipping clamp for steel coils. Figure 4 Enlarged diagram of point A.

[0015] Legend: 1. Steel coil body; 2. Fixing frame; 21. Crossbeam; 211. Slide groove; 212. First movable rod; 213. Second movable rod; 22. First side gripper; 221. Telescopic rod; 222. Grip arm; 223. Support rod; 23. Second side gripper; 24. Suspension block; 3. Shock-absorbing pad; 31. Damping rod; 32. Shock-absorbing spring; 33. Rubber pad. Detailed Implementation

[0016] Please see Figure 1-5 This utility model provides a technical solution: a lever-type anti-tipping clamp for steel coils, including a steel coil body 1 and a fixing frame 2.

[0017] The following section will explain the specific setup and function of the mounting bracket 2 and the shock-absorbing pad 3.

[0018] In this embodiment: the fixing frame 2 and the steel coil body 1 are clamped together. The fixing frame 2 includes a crossbeam 21, a first side gripper 22 and a second side gripper 23. The first side gripper 22 and the second side gripper 23 are located on both sides of the crossbeam 21. The tops of the first side gripper 22 and the second side gripper 23 are rotatably connected by a suspension block 24. The first side gripper 22 and the second side gripper 23 are slidably connected to the crossbeam 21. The bottom of the crossbeam 21 is fixedly connected with a shock-absorbing pad 3.

[0019] The effects achieved by the above components are as follows: the fixed frame 2 serves as the core load-bearing structure of the clamp, and the integrated installation of the two side grippers is achieved through the crossbeam 21. The symmetrical distribution of the first side gripper 22 and the second side gripper 23 forms a balanced clamping force, preventing the steel coil from shifting under force; the suspension block 24 serves as both the rotation fulcrum of the gripper and the connection point for the crane hook, realizing the uniform transmission of lifting force; the sliding connection between the gripper and the crossbeam 21, combined with the bottom shock-absorbing pad 3, achieves stable clamping while buffering vibration, providing all-round protection for the steel coil.

[0020] Specifically, the outer surface of the crossbeam 21 is provided with a sliding groove 211, and the outer surface of the crossbeam 21 is rotatably connected to a first movable rod 212. The end of the first movable rod 212 away from the crossbeam 21 is rotatably connected to the outer surface of the first side gripper 22. The outer surface of the crossbeam 21 is rotatably connected to a second movable rod 213, and the end of the second movable rod 213 away from the crossbeam 21 is rotatably connected to the outer surface of the second side gripper 23. The first movable rod 212 and the second movable rod 213 are arranged in a triangle, and the ends of the first movable rod 212 and the second movable rod 213 near the crossbeam 21 are rotatably connected to each other.

[0021] The effects achieved by the above components are as follows: the slide groove 211 provides guidance for the sliding of the gripper, ensuring smooth and uninterrupted adjustment of the gripper spacing; the triangular structure formed by the first movable rod 212 and the second movable rod 213 utilizes the principle of triangle stability to prevent the gripper from deforming due to the weight of the steel coil during clamping; the linkage design of the two movable rods enables the gripper to open and close synchronously, avoiding clamping offset caused by unilateral adjustment, while the triangular structure distributes the weight of the steel coil to the crossbeam 21, improving the overall load-bearing capacity.

[0022] Specifically, the first side gripper 22 and the second side gripper 23 are symmetrically distributed on both sides of the crossbeam 21, and the first movable rod 212 is symmetrically distributed on both sides of the outer surface of the crossbeam 21.

[0023] The aforementioned components achieve the following effects: the symmetrically distributed structure ensures that the steel coil is subjected to completely balanced forces on both sides, preventing the steel coil's center of gravity from shifting due to uneven forces, thus reducing the risk of tipping over at the source; the symmetrical arrangement of the movable rods further enhances the linkage effect, ensuring that the opening and closing speed and clamping force of the grippers on both sides are completely consistent, improving operational accuracy.

[0024] Specifically, the first side gripper 22 includes a telescopic rod 221 that is slidably connected to the crossbeam 21. A gripping arm 222 is fixedly connected to the end of the telescopic rod 221 away from the crossbeam 21. The telescopic rod 221 is fixedly connected to the side of the gripping arm 222. A support rod 223 is movably connected to the top of the gripping arm 222. The end of the support rod 223 away from the gripping arm 222 is movably connected to the suspension block 24.

[0025] The effects achieved by the above components are as follows: the telescopic rod 221, together with the crossbeam 21 and the slide groove 211, realizes dual adjustment of the spacing between the gripper arms 222, expanding the clamping range; the gripper arms 222 directly contact the steel coil to achieve clamping, and the fixed connection between the telescopic rod 221 and the side of the gripper arms 222 enhances the structural rigidity; the support rod 223 forms an auxiliary support, transferring the radial force borne by the gripper arms 222 to the suspension block 24, preventing the gripper arms 222 from bending and deforming due to excessive force, and improving clamping stability.

[0026] Specifically, the damping pad 3 includes a damping rod 31 fixedly connected to the bottom of the crossbeam 21, a damping spring 32 sleeved on the outer surface of the damping rod 31, and a rubber pad 33 fixedly connected to the bottom end of the damping rod 31.

[0027] The effects achieved by the above components are as follows: the damping rod 31 and the shock-absorbing spring 32 form a composite shock-absorbing structure. The spring absorbs the impact energy during hoisting start and stop, and the damping rod 31 suppresses the reciprocating vibration of the spring to avoid resonance. The rubber pad 33 is made of flexible material, which not only achieves flexible contact between the shock-absorbing pad 3 and the surface of the steel coil to prevent the steel coil from being scratched, but also increases the coefficient of friction to help improve the clamping stability.

[0028] Specifically, there are two sets of shock-absorbing pads 3 at the bottom of the crossbeam 21, and the two sets of shock-absorbing pads 3 are symmetrically distributed at the bottom of the crossbeam 21.

[0029] The effects achieved by the above components are as follows: the two sets of symmetrical shock-absorbing pads 3 form a balanced buffer force, ensuring that the top of the steel coil is subjected to uniform force and avoiding local stress concentration caused by a single set of shock-absorbing pads 3; the spacing of the shock-absorbing pads 3 is adapted to the width of the steel coil, so that the buffering effect covers the main stress area of ​​the steel coil, improving the shock absorption effect, while the symmetrical distribution facilitates installation and positioning, reducing assembly difficulty.

[0030] Specifically, the bottom end of the grab arm 222 is L-shaped, and an anti-slip layer is provided on the surface of the bottom end of the grab arm 222 that is in contact with the steel coil body 1.

[0031] The effects achieved by the above components are as follows: the L-shaped structure allows the gripper arm 222 to apply clamping force from both sides of the steel coil and form support from the bottom, achieving double fixation of clamping and supporting, and completely eliminating the risk of the steel coil falling; the polyurethane protrusion structure of the anti-slip layer can effectively increase the friction with the surface of the steel coil, ensuring that the clamping does not slip even if there is oil on the surface of the steel coil.

[0032] Working principle: First, in the adjustment stage, the grab arm 222 is aligned with the steel coil, so that the L-shaped grab arms 222 on both sides fit against the hollow parts on both sides of the steel coil, and the bottom support end contacts the bottom of the steel coil. The two sets of shock-absorbing pads 3 at the bottom of the crossbeam 21 flexibly contact the top of the steel coil through the rubber pads 33 to complete the initial positioning.

[0033] Next, the crane hook is connected to the suspension block 24, and the crane is started to lift slowly. As the lifting force increases, the first side gripper 22 and the second side gripper 23 rotate around the suspension block 24. The lever principle is used to increase the clamping force of the gripper arm 222 synchronously, forming a self-weight force amplification effect. The anti-slip layer increases friction to prevent slippage, the support rod 223 strengthens the rigidity of the gripper arm 222, and the damping rod 31 and the shock-absorbing spring 32 of the shock-absorbing pad 3 absorb the lifting impact.

[0034] Finally, after the steel coil is transferred to the target position, it is slowly lowered onto the support surface. The crane gradually unloads the lifting force, and the clamping force of the grab arm 222 decreases accordingly. The grab is pushed to separate along the slide groove 211, thus completing the separation of the clamp from the steel coil. The whole process achieves safe and stable steel coil handling.

Claims

1. A lever-type anti-tipping clamp for steel coils, comprising a steel coil body (1) and a fixing frame (2), characterized in that: The fixing frame (2) and the steel coil body (1) are clamped together. The fixing frame (2) includes a crossbeam (21), a first side gripper (22) and a second side gripper (23). The first side gripper (22) and the second side gripper (23) are located on both sides of the crossbeam (21). The tops of the first side gripper (22) and the second side gripper (23) are rotatably connected by a suspension block (24). The first side gripper (22) and the second side gripper (23) are slidably connected to the crossbeam (21). The bottom of the crossbeam (21) is fixedly connected with a shock-absorbing pad (3).

2. The lever-type anti-tipping clamp for steel coils according to claim 1, characterized in that: The outer surface of the crossbeam (21) is provided with a sliding groove (211). The outer surface of the crossbeam (21) is rotatably connected to a first movable rod (212). The end of the first movable rod (212) away from the crossbeam (21) is rotatably connected to the outer surface of the first side gripper (22). The outer surface of the crossbeam (21) is rotatably connected to a second movable rod (213). The end of the second movable rod (213) away from the crossbeam (21) is rotatably connected to the outer surface of the second side gripper (23). The first movable rod (212) and the second movable rod (213) are triangularly distributed. The ends of the first movable rod (212) and the second movable rod (213) near the crossbeam (21) are rotatably connected to each other.

3. The lever-type anti-tipping clamp for steel coils according to claim 2, characterized in that: The first side gripper (22) and the second side gripper (23) are symmetrically distributed on both sides of the crossbeam (21), and the first movable rod (212) and the first movable rod (212) are symmetrically distributed on both sides of the outer surface of the crossbeam (21).

4. The lever-type anti-tipping clamp for steel coils according to claim 1, characterized in that: The first side gripper (22) includes a telescopic rod (221) slidably connected to the crossbeam (21). A gripping arm (222) is fixedly connected to one end of the telescopic rod (221) away from the crossbeam (21). The side of the telescopic rod (221) is fixedly connected to the gripping arm (222). A support rod (223) is movably connected to the top of the gripping arm (222). The end of the support rod (223) away from the gripping arm (222) is movably connected to the suspension block (24).

5. A lever-type anti-tipping clamp for steel coils according to claim 1, characterized in that: The damping pad (3) includes a damping rod (31) fixedly connected to the bottom of the crossbeam (21), a damping spring (32) is sleeved on the outer surface of the damping rod (31), and a rubber pad (33) is fixedly connected to the bottom end of the damping rod (31).

6. A lever-type anti-tipping clamp for steel coils according to claim 5, characterized in that: There are two sets of the shock-absorbing pads (3) at the bottom of the crossbeam (21), and the two sets of the shock-absorbing pads (3) are symmetrically distributed at the bottom of the crossbeam (21).

7. A lever-type anti-tipping clamp for steel coils according to claim 4, characterized in that: The bottom end of the gripper (222) is L-shaped, and the surface of the bottom end of the gripper (222) that is in contact with the steel coil body (1) is provided with an anti-slip layer.

Images