Lifting appliance for crane

Abstract

The utility model discloses a lifting appliance for a crane, which relates to the technical field of crane lifting appliances and comprises a transverse frame, clamping mechanisms are arranged on two sides of the bottom of the transverse frame, each clamping mechanism comprises two supporting rods, a connecting rod is fixedly connected between the two supporting rods, and guide rails are fixedly connected to the tops of the supporting rods. According to the lifting appliance, the electric push rod, the moving rods, the sliding blocks and the guide rails which are linked with one another are arranged, so that the transverse rods on the two sides and the lifting hooks can be rapidly and accurately driven to move in opposite directions, stable clamping of workpieces is achieved, and the lifting appliance is particularly suitable for lifting operation of long-size workpieces; according to the lifting device, the lifting hooks which are symmetrically distributed are used for synchronous clamping, force bearing points are effectively dispersed, the stability and safety in the lifting process are remarkably improved, the falling or collision risk caused by shaking of workpieces in the lifting process is reduced, the lifting efficiency is improved, the universality for adapting to the workpieces with different lengths is enhanced, and the lifting device has high practical value.

Description

TECHNICAL FIELD

[0001] The utility model belongs to crane sling technical field, especially relate to a crane sling. BACKGROUND

[0002] In industrial production, cranes are widely used for hoisting and transferring materials, and the hoisting operation of long-shaped workpieces, such as steel, pipes, profiles or large components, is particularly common.

[0003] Traditional crane hoisting is usually carried out by steel wire ropes in cooperation with hooks, mainly through manual hooking, and simple constraints are realized by relying on the weight of the workpiece. The stability of the hoisting process is poor, and long workpieces are prone to swing, rotation or even slipping during lifting and moving, which poses a serious safety hazard. To solve the above problems, we provide a crane sling. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a crane sling to solve the problem of traditional crane hoisting, which is usually carried out by steel wire ropes in cooperation with hooks, mainly through manual hooking, and simple constraints are realized by relying on the weight of the workpiece. The stability of the hoisting process is poor, and long workpieces are prone to swing, rotation or even slipping during lifting and moving, which poses a serious safety hazard.

[0005] The above technical purpose of the utility model is realized by the following technical scheme: a crane sling, comprising a crossbar, two clamping mechanisms are arranged on the bottom of the crossbar, each clamping mechanism comprises two support rods, a connecting rod is fixedly connected between the two support rods, a guide rail is fixedly connected to the top of the support rod, two moving rods are arranged between the two support rods, end blocks are fixedly connected to the two ends of the moving rod, a sliding block is fixedly connected to the bottom of the end block, the inside of the sliding block is slidably connected with the guide rail, a crossbar is fixedly connected to the bottom of the moving rod, a plurality of hooks are fixedly connected to the bottom of the crossbar, a hinge piece is fixedly connected to the top of the moving rod, and an electric push rod is hinged to the hinge piece.

[0006] Preferably, one side of the electric push rod is hinged to a mounting block, and the top of the mounting block is fixedly connected with the crossbar.

[0007] Preferably, one side of the support rod is fixedly connected with a fixed block, and the top of the fixed block is fixedly connected with the crossbar.

[0008] Preferably, the two sides of the top of the crossbar are fixedly connected with lifting lugs, and the inner side of the crossbar is fixedly connected with a reinforcing block.

[0009] The utility model has the following beneficial effects:

[0010] The device can quickly and accurately drive the two lateral rods and the hooks to move towards each other by setting the electric push rod, the moving rod, the sliding block and the guide rail in linkage with each other, so that the stable clamping of the workpiece is realized, the lifting appliance is particularly suitable for the lifting operation of long-size workpieces, the synchronous clamping of the symmetrically distributed hooks effectively disperses the force points, the stability and the safety of the lifting process are obviously improved, and the risk of falling or collision of the workpiece caused by shaking in the lifting is reduced, the device improves the lifting efficiency and enhances the universality of adapting to workpieces of different lengths, and has strong practical value. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a three-dimensional structural schematic view of the utility model;

[0012] Figure 2 is a partial structural three-dimensional view of the utility model;

[0013] Figure 3 is a partial structural three-dimensional view of the utility model;

[0014] Figure 4 is a partial structural three-dimensional view of the utility model.

[0015] Reference signs: 1, cross frame; 2, clamping mechanism; 201, support rod; 202, connecting rod; 203, guide rail; 204, moving rod; 205, end block; 206, sliding block; 207, cross rod; 208, hook; 209, hinge piece; 210, electric push rod; 3, mounting block; 4, fixed block; 5, lifting lug; 6, reinforcing block. DETAILED DESCRIPTION

[0016] The utility model will be further explained in detail in connection with the drawings.

[0017] Example 1:

[0018] Reference Figures 1-4 A lifting appliance for a crane, including cross frame 1, the two sides of the bottom of cross frame 1 are provided with clamping mechanism 2, clamping mechanism 2 includes two support rods 201, two support rods 201 are fixedly connected with connecting rod 202 between the two support rods 201, the top of support rod 201 is fixedly connected with guide rail 203, two moving rods 204 are arranged between the two support rods 201, the two ends of moving rod 204 are fixedly connected with end block 205, the bottom of end block 205 is fixedly connected with sliding block 206, the inside of sliding block 206 is slidably connected with guide rail 203, the bottom of moving rod 204 is fixedly connected with cross rod 207, the bottom of cross rod 207 is fixedly connected with a plurality of hooks 208, the top of moving rod 204 is fixedly connected with hinge piece 209, electric push rod 210 is hinged on hinge piece 209.

[0019] Specifically, the device can quickly and accurately drive the two lateral rods 207 and the hooks 208 to move towards each other by setting the electric push rod 210, the moving rod 204, the sliding block 206 and the guide rail 203, so as to stably clamp the workpiece. The lifting appliance is particularly suitable for hoisting operation of long-size workpieces, effectively disperses the force points through synchronous clamping of the symmetrically distributed hooks 208, significantly improves the stability and safety of the hoisting process, and reduces the risk of falling or collision of the workpiece due to shaking during hoisting. The device improves the hoisting efficiency and enhances the versatility of adapting to workpieces of different lengths, and has strong practical value.

[0020] With reference to Figure 1 and Figure 2 One side of the electric push rod 210 is hinged with a mounting block 3, and the top of the mounting block 3 is fixedly connected with the cross frame 1. By setting the mounting block 3, the electric push rod 210 can be installed at one end of the cross frame 1.

[0021] With reference to Figure 1 One side of the support rod 201 is fixedly connected with a fixed block 4, and the top of the fixed block 4 is fixedly connected with the cross frame 1. By setting the fixed block 4, the support rod 201 can be fixedly connected with the cross frame 1.

[0022] With reference to Figure 1 Both sides of the top of the cross frame 1 are fixedly connected with lifting lugs 5, and the inner side of the cross frame 1 is fixedly connected with a reinforcing block 6. By setting the lifting lugs 5, the lifting lugs 5 can be effectively hung with the crane hook. By setting the reinforcing block 6, the structure of the cross frame 1 can be effectively reinforced.

[0023] Brief use process: the user hangs the lifting lugs 5 with the crane, starts the electric push rod 210 to retract, drives the moving rod 204 to move through the hinged part 209, drives the sliding block 206 to slide on the surface of the guide rail 203 through the end block 205, and drives the two lateral rods 207 to move towards each other. The lateral rod 207 drives the hooks 208 to stably clamp the workpiece. The device is particularly suitable for hoisting of long workpieces and improves the stability of hoisting.

[0024] This specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model. Those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, but as long as the modifications are within the scope of the claims of the utility model, they are protected by the patent law.

Claims

1. A lifting device for a crane, comprising a crossbeam (1), characterized in that: The bottom of the crossbar (1) is provided with clamping mechanisms (2) on both sides. The clamping mechanism (2) includes two support rods (201). A connecting rod (202) is fixedly connected between the two support rods (201). A guide rail (203) is fixedly connected to the top of the support rod (201). Two moving rods (204) are provided between the two support rods (201). End blocks (205) are fixedly connected to both ends of the moving rods (204). A slider (206) is fixedly connected to the bottom of the end block (205). The inside of the slider (206) is slidably connected to the guide rail (203). A crossbar (207) is fixedly connected to the bottom of the moving rod (204). Several hooks (208) are fixedly connected to the bottom of the crossbar (207). A hinge (209) is fixedly connected to the top of the moving rod (204). An electric push rod (210) is hinged to the hinge (209).

2. A lifting device for a crane according to claim 1, characterized in that: The electric push rod (210) has a mounting block (3) hinged to one side, and the top of the mounting block (3) is fixedly connected to the cross frame (1).

3. A lifting device for a crane according to claim 1, characterized in that: A fixing block (4) is fixedly connected to one side of the support rod (201), and the top of the fixing block (4) is fixedly connected to the cross frame (1).

4. A lifting device for a crane according to claim 1, characterized in that: The top of the cross frame (1) is fixedly connected to both sides of the lifting lugs (5), and the inner side of the cross frame (1) is fixedly connected to the reinforcing block (6).

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