A measuring device for the transmission vibration of electric tools in the rail repair

Abstract

The invention discloses a measuring device for hand-transmitted vibration of an electric tool for space on-orbit maintenance, comprising a subject, an on-orbit maintenance electric tool, a suspension system and a measurement system; the suspension system includes a bracket and is connected with the bracket The balancer, the screw test interface board fixed on the bracket, and the non-disengagement fastening device installed on the screw test interface board; the measurement system includes a data acquisition device and a computer, and one end of the data acquisition device passes through the data acquisition device line. cable to connect to the computer. In this application, one end of the data acquisition device is connected to the computer through a data acquisition cable, and the other end is connected to a mechanical sensor with an output axonometric point, a measurement point on the right side of the handle, and a measurement point on the left side of the handle through a sensor cable. The mechanical sensors at the measuring point on the right side of the handle and the measuring point on the left side of the handle are used to measure the vibration data of the three positions, which can assist the astronauts to better operate the on-orbit maintenance power tools.

Description

technical field [0001] The invention relates to the technical field of space on-orbit maintenance, in particular to a measuring device for hand-transmitted vibration of an electric tool used for space on-orbit maintenance. Background technique [0002] One of the space on-orbit maintenance work is the on-orbit maintenance and replacement of equipment. It is necessary to disassemble and install the mounting screws of the fixed equipment on-orbit. This process will use a variety of special tools. An on-orbit maintenance power tool, which is used by astronauts outside the cabin after wearing an extravehicular space suit. The tool is driven by a motor to rotate an adaptor rod, and the mechanical vibration generated by the rotation of the motor and the adaptor rod under microgravity is transmitted to the astronaut's gloves. , and then transmitted to the astronauts' palms, arms and even shoulders. Excessive hand-transmitted vibration may lead to fatigue of the astronauts' heads, p...

AI Technical Summary

Problems solved by technology

[0002] One of the space on-orbit maintenance tasks is the on-orbit maintenance and replacement of equipment. It is necessary to remove and install the mounting screws of the fixed equipment on the orbit. This process will use a variety of special tools. This work is carried out in the space environment outside the cabin. This process will use a An electric tool for on-orbit maintenance, which is used by astronauts outside the cabin after wearing an extravehicular space suit. The tool is driven by a motor to rotate the adapter rod, and the mechanical vibration generated by the rotation of the motor and the adapter rod under microgravity is transmitted to the astronaut's gloves , and then transmitted to the palms, arms and even shoulders of the astronauts. Excessive hand-transmitted vibration may cause fatigue of the astronauts' heads, palms and arms, and decreased perception ability. To design a measurement device for hand-transmitted vibration of electric tools used in space on-orbit maintenance

Images