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Torque wrench with extremely low reaction force to operator

A torque wrench, reaction force technology, used in power tools, manufacturing tools, etc., can solve problems such as acceleration

Active Publication Date: 2020-10-20
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the shortcomings of acceleration torque in the existing low reaction force electric wrench, and provide a torque wrench that has basically no reaction force on the operator, which can reduce the labor intensity of workers and improve labor efficiency

Method used

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  • Torque wrench with extremely low reaction force to operator
  • Torque wrench with extremely low reaction force to operator
  • Torque wrench with extremely low reaction force to operator

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with accompanying drawing, protection scope of the present invention is not limited to the following:

[0026] Such as figure 1 As shown, the present invention provides a torque wrench with extremely low reaction force to the operator, including a power assembly, a transmission assembly and an output assembly. The power assembly includes a torque wrench housing 1, a motor outer rotor 11 and a motor inner rotor 10 , The outer rotor 11 of the motor is assembled with the casing 1 through the bearing 2 . The transmission assembly includes a planetary gear train 4 and an overrunning clutch 13, wherein the planetary gear train 4 includes a ring gear 5, a planetary gear 6, a sun gear 12, and a planet carrier 14, and the ring gear 4 is connected to the outer rotor of the motor in the power pack through a connecting rod 3. 11 is coaxially fixed, the center of the sun gear 12 is machined with a through hole, th...

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Abstract

The invention discloses a torque wrench with extremely low reaction force to an operator. The torque wrench comprises a power assembly, a transmission assembly and an output assembly, when the torquewrench is used, firstly, a part of threads of a bolt (15) are screwed into a threaded hole of a base (17), the bottom of an output shaft (9) is assembled with the bolt (15), then a power switch is turned on, tightening operation is started, when a torque sensor monitors that the output torque value is basically stable and reaches the maximum output torque, the power supply is cut off, and tightening is finished; and a wrench shell (1) is separated from the whole torque transmission system, so that the operator does not need to bear counter-acting force. The torque wrench has the beneficial effects that the reactive force on an operator in the working process is basically zero, the labor intensity can be greatly reduced, the requirement of human engineering is met, the unmanned, intelligentand robotic development process of the torque wrench is accelerated, and the torque wrench has very high use value.

Description

technical field [0001] The present invention relates to a hand-held power tool for transmitting torque to fastened joints. Background technique [0002] A torque wrench is a tool used to drive threaded parts such as bolts or screws to rotate and tighten two or more parts. With different power sources and structural features, there are various forms of torque wrenches. From the principle of labor saving, it can be divided into two types, one is the manual booster wrench that adopts the principle of deceleration; the other is the low reaction force wrench that counteracts the reaction force by setting a flywheel and other methods. [0003] Current research on booster wrenches includes Chinese patent CN208713808U, in view of the laborious characteristics of manual wrench tightening operations, double-row transmission gears are used to achieve the effect of deceleration and booster force, and workers are still required to provide tightening force during use. Patents CN208773421...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B21/02
CPCB25B21/02B25B21/026
Inventor 朱鹏龙姚进邬焕欣
Owner SICHUAN UNIV
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