Sensitive-type internal combustion wrench

Abstract

The invention provides a sensitive-type internal combustion wrench, which is designed for overcoming the deficiencies that the prior wrench host is not ideal to disconnect, poor in sensitivity of torque control function, poor in consistency and the like when a quick-disconnection safety device jams in the state of force application. The wrench mainly comprises a rotation shaft arranged in an upperbox and a lower box, as well as a transmission sleeve and a sleeve wrench head which are in transmission connection with the rotation shaft, wherein a torque control mechanism on the rotation shaft mainly consists of a jaw ball part, a throat-shaped skateboard part and a wedge-shaped skateboard part, and the quick-disconnection safety device is arranged on the transmission sleeve and the sleeve wrench. The wrench has the characteristics and advantages that the wrench is an internal-combustion bolt wrench which is high in sensitivity and free from impact and is provided with the quick-disconnection safety device; after the wrench head adopts the quick-disconnection safety device, the problem that the wrench is not ideal to disconnect when a nut or a bolt and the sleeve wrench head are locked together is solved, and the sleeve wrench head and a wrench body can be instantaneously disconnected in case of emergency; the torque applied by the internal combustion wrench can be accurately adjusted through the torque control mechanism; and the wrench is particularly applicable to railway-sleeper bolt maintenance operation and other power-free occasions in need for an accurate-control bolt-torque mechanical wrench.

Description

Technical field [0001] The invention relates to a wrench, in particular to a sensitive adjustable torque internal combustion wrench with a sleeve head that can be quickly disconnected from a main engine. It is suitable for the maintenance of railway sleeper bolts and other mechanical wrenches that require accurate control of bolt torque in non-powered situations. technical background [0002] At present, the internal combustion bolt wrenches that are widely used in railway maintenance operations often do not have a safety device for the sleeve head and the wrench host to quickly disengage, and there is no torque control function. Or with a quick release device, when it is stuck under a force (strength) state, the release performance is often unsatisfactory; the sensitivity of torque control is poor and the consistency is poor. Especially in the railway maintenance operation, when the sleeper bolts and the sleeve plate head are stuck, and the train is going to pass, can the sleev...

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the shortcomings of the prior art, such as unsatisfactory disengagement performance and poor sensitivity and poor consistency of the torque control function, when the quick release safety device of the wrench host in the prior art is stuck under the state of applying force (competition), and A sensitive internal combustion wrench is provided, which mainly includes a rotating shaft placed in the lower box and the upper box, a transmission sleeve and a socket wrench connected with the rotating shaft; a torque control is provided on the rotating shaft mechanism, a quick release safety device is provided on the drive sleeve and the socket wrench;

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