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Device for producing precise tightening torque for screw connections

A technology of threaded connectors and equipment, applied in the direction of screwdrivers, wrenches, manufacturing tools, etc., can solve the problems that need to be hung around the neck of the operator and hinder the operator

Inactive Publication Date: 2013-03-27
罗素麦特拧紧技术公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantage: Among other devices, the required evaluation device needs to be hung around the neck by the operator or needs to be carried in the form of a fanny pack, etc.
The data transmission between the sensor and the evaluation device mainly takes place in the form of "flying" cables, which in turn hinder the operator

Method used

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  • Device for producing precise tightening torque for screw connections
  • Device for producing precise tightening torque for screw connections
  • Device for producing precise tightening torque for screw connections

Examples

Experimental program
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Effect test

Embodiment Construction

[0026] The apparatus for producing precise tightening torque shown in the drawings comprises a torque amplifier which will hereinafter be referred to and generally referred to as a power amplifier 100 comprising an input shaft 101 and an output shaft or driven shaft 102 . The input and output shaft ends are respectively square, for the input shaft the torque wrench 200 will act on said square, and for the output shaft 102 the output shaft 102 will engage in a so called "wrench socket" or just "socket" 140 . Torque is transmitted through socket 142 to a threaded connection (not shown). The torque amplifier 100 further includes what is generally known as a reaction arm 130 that prevents the torque amplifier from rotating by striking a stationary object during steering.

[0027] The torque amplifier 100 is manually actuated by a torque wrench 200 . To this end, the torque wrench 200 includes a handle 210 . The torque wrench 200 itself is an electronic torque wrench 200 with a ...

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Abstract

The invention relates to a device for producing precise tightening torque for screw connections characterised by the combination of a torque multiplier (100) and a torque wrench (200) which is adapted to said torque multiplier and calibrated therewith. The invention also relates to a method for calibrating said type of device.

Description

technical field [0001] The invention relates to a device for generating precise tightening torques for threaded connections according to the preamble of claim 1 and a method for calibrating such a device according to the preamble of claim 6 . Background technique [0002] Torque amplifiers, also referred to hereinafter as power amplifiers, generally comprise high transmission planetary gears. Spur or epicycloid gears are also sometimes used in torque multipliers. The input torque is set manually and is produced primarily with a ratchet or torque wrench. The output torque of the gear can then be determined based on a predetermined gear ratio, such as known from a table and stored. However, gear efficiency is not considered. Alternatively, the output torque is obtained from a torque map, which was also previously determined. In this case, the gear efficiency is taken into account, where an interpolation is performed with intermediate values. [0003] Within the scope of q...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B13/46B25B17/02B25B23/00B25B23/142
CPCB25B23/1425B25B13/467B25B17/02B25B23/0078
Inventor 马克·加赖斯
Owner 罗素麦特拧紧技术公司
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