Numerical control constant torque vertical bolt wrench

Abstract

The invention provides a numerical control constant torque vertical bolt wrench which comprises travel wheels, a travel frame, a power supply device, a driving frame and two wrench bodies. The travel wheels are mounted at two ends of the travel frame, the power supply device and the driving frame are respectively mounted on the travel frame, and the two wrench bodies are respectively mounted on the movable driving frame and comprise support frames, motors, clutches, torque switches, drivers, torque sensors, transmission shafts and working sleeves. Torque is easily controlled, on-site operation is convenient, too low torque or too high torque is avoided, the double sleeves independently work, a single sleeve of the double sleeve can work as required, and the numerical control constant torque vertical bolt wrench is adaptable to tightening and loosening operation of various vertical bolts of railway fasteners and turnout junctions.

Description

technical field

[0001] The invention relates to the technical field of wrenches, in particular to a numerically controlled constant torque stand bolt wrench. Background technique

[0002] At present, the commonly used machines and tools used for the loosening and tightening of railway line sleeper bolts are divided into electric motors and internal combustion engines in terms of power; they are divided into hydraulic transmission and mechanical transmission in terms of transmission methods. The internal combustion type motorized wrench hydraulic motorized wrench is mainly used. Its structure is a mechanical helical gear that transmits impact. The impact part and transmission part are easily damaged, and there are disadvantages such as high failure rate and high maintenance cost. From the perspective of torque control, the current Most wrenches are of impact type and torque display or customized torque through the hydraulic system relief valve. This method is difficult to con...

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