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Control system of rechargeable torque wrench

A control system, torque wrench technology, applied in the wrench field, can solve problems such as difficult to output torque value

Inactive Publication Date: 2020-05-19
BEIJING TIANZE ELECTRIC POWER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For this reason, the embodiment of the present invention provides a control system of a rechargeable torque wrench to solve the problem that the existing small-volume electric control wrench is difficult to output a more accurate torque value

Method used

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  • Control system of rechargeable torque wrench
  • Control system of rechargeable torque wrench
  • Control system of rechargeable torque wrench

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Embodiment 1

[0021] like figure 1 As shown, this embodiment proposes a control system for a rechargeable torque wrench, which includes a controller 100 , a driver 200 , a brushless motor 300 and a power supply 400 .

[0022] The controller 100 is connected to the driver 200, and the driver 200 is connected to the brushless motor 300. The controller 100 is used to control the driver 200 to drive the brushless motor 300 to rotate to drive the wrench to work. Specifically, the brushless motor 300 provides power to drive the reduction mechanism, and It is transmitted to the impact block, and the impact block hits the output shaft at high frequency to obtain torque. The rotation driver 200 of the brushless motor 300 is also used to obtain the current change information when the brushless motor 300 rotates, and feed back the current change information to the controller 100, so that the controller 100 obtains the output torque of the brushless motor 300 according to the current change information...

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Abstract

The embodiment of the invention discloses a control system of a rechargeable torque wrench. The control system comprises a controller, a driver, a brushless electric machine and a power source. The controller is used for controlling the driver to drive the brushless electric machine to rotate to drive the wrench to work. The driver is further used for acquiring current change information of the brushless electric machine during rotation, and feeding back the current change information to the controller, so that the controller acquires the output torque of the brushless electric machine according to the current change information and adjusts the output torque. According to the control system, modular unit control is adopted, a precise torque value can be output, and precise control over thework of the wrench can be achieved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of wrenches, in particular to a control system for a cordless torque wrench. Background technique [0002] There are many types of wrenches on the market, among which the electronic control wrench is of higher grade. The electric control wrench is an electric tool for tightening and loosening bolts and nuts. It can be used for initial tightening, final tightening and torsional shear high-strength bolts in the construction of steel structure bridges, factory buildings, chemical industry, and power generation equipment. Initial screwing, and occasions with strict requirements on the torque or axial force of bolt fasteners. An impact electric wrench generally includes a drive motor, a reduction mechanism, and an impact block. The power output by the drive motor is transmitted to the impact block through the reduction mechanism, and the impact block hits the output shaft at high frequency ...

Claims

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Application Information

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IPC IPC(8): B25B23/00G05D17/02
CPCB25B23/00G05D17/02
Inventor 全伟黄桂宏
Owner BEIJING TIANZE ELECTRIC POWER GRP CO LTD
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