Clamping Mechanism for Hoisting of Tubular Mechanical Parts

Abstract

The invention relates to the technical field of lifting, and discloses a clamping mechanism used for tubular mechanical part lifting. The clamping mechanism comprises an upper ring body and a lower ring body, wherein the upper ring body is formed by hinging clamping blocks which are arched; the clamping blocks are equipped with a channel which penetrate through the clamping blocks; a pull rope forconnecting the clamping blocks in the upper ring body together is arranged in the channel; the two ends of the upper ring body are equipped with lifting rods; the lower ring body comprises a left ring body and a right ring body; each of the left ring body and the right ring body is formed by hinging clamping blocks; the left ring body and the right ring body are separately connected to the two ends of the upper ring body; the left ring body is connected with the right ring body through a hanger; and a pull rope for connecting the clamping blocks in the lower ring body together is arranged inthe lower ring body. The mechanical part is placed in the clamping structure, the lifting rods are lifted, and the clamping blocks get close to the mechanical art under action of the pull rope, so that the clamping blocks abut against the mechanical part, and the mechanical part is fixedly arranged in the clamping mechanism. The clamping mechanism has the advantages of being suitable for long-distance lifting, firm in clamping, simple in structure and simple in operation.

Description

technical field [0001] The invention relates to the technical field of hoisting, in particular to a hoisting mechanism for tubular mechanical parts. Background technique [0002] Since the surface of tubular parts, such as exhaust pipes and drive shafts, is arc-shaped, the contact surface with the spreader is small during the grabbing process, and it is easy to slip and rotate. Therefore, multi-point hanging or external force is often used for clamping. Lifting and conveying in a holding way. [0003] Most of the multi-point hanging slings have lifting holes at the top and two sets of hooks arranged in parallel at the bottom, and the pipes are placed in the hooks before lifting. Although such a multi-point hanging sling can grab and lift pipes, the workpiece may still be displaced and rotated in the radial or axial direction. The uncertain movement of the workpiece during the lifting and installation process will affect the accuracy of the positioning of the workpiece, and...

AI Technical Summary

Problems solved by technology

Uncertain movement of the workpiece during lifting and workpiece installation will affect the accuracy of workpiece positioning, and even cause the risk of falling

[0004] Most of the external force clamping spreaders move through the cylinder and the connecting rod mechanism, and drive the clamping device to clamp the pipe fittings, so as to realize the stable grasping and hoisting of the pipe fittings, but the structure is relatively complicated, the use cost is high, and an external air source is required. It is not conducive to long-distance lifting, the structure is heavy, and it is not easy to operate, and the clamping force generated by the clamping device is not easy to determine. If it is too large, it will damage the workpiece, but if it is too small, it will easily cause the pipe to slip.

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