Clamp for unequal-diameter long rod parts

Abstract

The invention discloses a clamp for unequal-diameter long rod parts. The clamp comprises a main beam and at least two grabbing and clamping units which are arranged on the main beam side by side. Thegrabbing and clamping units comprise grabbing and clamping groups and grabbing and clamping oil cylinders for controlling the grabbing and clamping groups to be opened and closed. All rodless cavitiesof all the grabbing and clamping oil cylinders of the at least two grabbing and clamping units communicate with each other, and all rod cavities communicate with each other. All the grabbing and clamping units of the clamp are in the state of clamping the unequal-diameter long rod parts, so that the unequal-diameter long rod parts can be easily, stably and reliably clamped and taken, the precisealignment of the clamping positions of the unequal-diameter long rod parts does not need to be considered during specific operation, and the grabbing and clamping units can be adjusted automatically and flexibly according to the actual diameter values of clamped parts. Operation can be easily and conveniently carried out. The practicability is high. Construction operations such as displacement androtation of the unequal-diameter long rod parts are greatly benefited and ensured.

Description

technical field [0001] The invention relates to the technical field of clamp devices, in particular to a clamp for long rods with unequal diameters. Background technique [0002] At present, in many construction operations, it is necessary to perform operations such as displacement and installation of long rods with a long length (for example, more than 10 meters), which are usually implemented by using clamps. When the long bar is a regular equidiameter (rod diameter) structure, existing common various clamps can be used. And when the long rod is of unequal diameter structure, it is obvious that ordinary clamps cannot clamp it stably, let alone perform various installation operations such as displacement and rotation. [0003] Such as, when electric power construction is erecting utility pole at present, all is to adopt crane to bind utility pole with rope, lifts again, and utility pole is installed. However, the cost of the crane is very high, and the function is single,...

AI Technical Summary

Problems solved by technology

When ordinary clamps are used to clamp the utility poles, the clamps must hold the utility poles tightly. The contact surface between the clamps and the utility poles must have a certain span. There is a certain difference in the diameter of the long rods with unequal diameters in this span. Each of the common clamps The clamping jaws are of equal width and clamping distance, acting on utility poles with unequal diameters, and cannot achieve complete clamping effect. In actual operation, it is necessary to repeatedly try to select a suitable position for clamping, and the clamping is very weak and unstable, which is difficult When performing operations such as rotation and erection, there is a high probability of failure due to operational errors, which brings great inconvenience to construction operations

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