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Pneumatic wrench

A pneumatic wrench and transmission shaft technology, applied in the field of wrenches, can solve the problems of complex structure of pneumatic torque wrench, difficult to disassemble bolts, low efficiency, etc., and achieve the effects of simple structure, improved use feeling, and convenient and quick use.

Active Publication Date: 2018-04-27
CHANGZHOU COLLEGE OF INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of pneumatic torque wrench has a complex structure and low efficiency (the angle of impact is not large), and it is mainly used for bolts that are difficult to disassemble.

Method used

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Examples

Experimental program
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Embodiment 1）

[0035] See Figure 1 to Figure 8 , The pneumatic wrench of the present invention includes a housing 1, a transmission shaft 2, a driving mechanism 3, a ratchet mechanism 4, an impact cylinder 5 and a control device 6. The control device 6 adopts a two-position five-way manual reversing valve. The front side of the valve body of the two-position five-way manual reversing valve is provided with a first interface 6-1 and a second interface 6-2 from left to right, and the rear side of the valve body of the two-position five-way manual reversing valve is arranged from left to right. The right is provided with the third interface 6-3, the fourth interface 6-4 and the fifth interface 6-5 in turn, and the middle part of the valve body of the two-position five-way manual reversing valve is equipped with a manual push rod 6-6, and the manual push rod 6- 6 slides are arranged in the valve body, and the right part of manual push rod 6-6 stretches out of the valve body. A compression spr...

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PUM

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Abstract

The invention discloses a pneumatic wrench. The pneumatic wrench is characterized by comprising a shell, a transmission shaft, a driving mechanism, a ratchet mechanism, an impacting cylinder and a control device; the transmission shaft is rotationally arranged in the shell through a bearing correspondingly arranged in the shell; the two ends of the transmission shaft both stretch out of the shell;the front end of the transmission shaft is provided with a first square connection part capable of being provided with a corresponding replaceable sleeve; the rear end of the transmission shaft is provided with a second square connection part capable of being provided with a corresponding replaceable sleeve; a piston rod of the impacting cylinder impacts the driving mechanism; the driving mechanism drives the transmission shaft to rotate clockwise in one way through the ratchet mechanism; and the control device controls the impacting cylinder to work.

Description

technical field [0001] The invention relates to the technical field of wrenches, in particular to a pneumatic wrench. Background technique [0002] A wrench is a commonly used installation and removal tool. It is a hand tool that uses the principle of leverage to twist the opening or casing of bolts, screws and nuts. As the main hand tool, the wrench plays an important role in the history of industrial development. It has a wide variety, and can be divided into manual wrench and motorized wrench according to whether it needs to provide a power source. Manual wrenches include ordinary wrenches, ratchet wrenches, etc. Motorized wrenches can be divided into pneumatic wrenches, hydraulic wrenches, etc. according to the different power sources provided. Different wrenches play the same role in production assembly, which is to save labor and improve work efficiency. Due to the advantages of easy access to air sources and fast pneumatic speed, pneumatic wrenches are now widely ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B21/02B25B23/00
CPCB25B21/02B25B23/00
Inventor 苏沛群张红卫宫亚梅
Owner CHANGZHOU COLLEGE OF INFORMATION TECH
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