Design Of An Adaptive Filter Digital Display Torsion Wrench

The bolt is one of the most commonly used parts in mechanical equipment in engineering and the function is to connect with different mechanisms and parts.Duo to the stability,fastening and assembling of bolts need wrenches.The common wrenches can work conveniently,but they also have the following defects: No.1 The process of clamp,the surface of bolts can be worn down easily,so that it can be changed hollows,which cannot bear the load during disassembling.No.2 It is difficult for common wrenches to work in small workspace.In view of the phenomenon,the common wrenches will be improved in the following designs.First of all,in order to make up for above defect No.1,and the common hex wrench cannot be clamped and stressed.With the principle of three-jaw self-centering chuck clamped the round bar,the sleeve head is designed in the form of six sliders,which can both clamp the hex bolts and the round hexagonal due to wearing down.Meantime,a compression spring is installed between the hole corresponding and the hexagonal mandrel of the slider.With the movement of the slider is realized by the up and down movement of the sleeve,and the bolt installation of different sizes can be adapted.Secondly,it is necessary to deal with defect No 2.Only the socket wrench can work in some narrow & deep space.While designing,the factor is considered,that is,the head of wrench connecting hold will be designed as a standard square,which can be directly connected with the socket wrench.The ratchet mechanism prevents the wrench from being reversed or smoothed when the nut is turned.Finally,in scientific research,it is necessary to know the torque value of bolts in different situations,so the digital torque wrench can achieve it.The ultra-low power MSP430 single-chip microcomputer is used to sample the data with both high precision and low power consumption ADS1118.The resistance and capacitance are high precision and low temperature.Floating device,plus compensation algorithm,the measurement accuracy of this device is above 1%.The tested system will not only reliable and stable but also provide a theoretical basis.