The torque wrench is also called the torque wrench. The constant torque electric wrench is also called the torque adjustable electric wrench. It is a kind of electric wrench. Its main characteristic is that it can set the torque and the torque can be adjusted. There may be some friends who don't know much about the constant-torque electric wrench. The following Xiaobian will introduce the torque adjustment, the operation precautions, and the application of the constant-torque electric wrench.
Torque adjustment of constant torque electric wrench
1. The user can arbitrarily select the corresponding size electric wrench within the range of 50-3500Nm.
2. There is "torque adjustment knob" on the control panel. Engraved with 0-10 scale value. The function of the fine adjustment knob is to adjust and compensate between coarse and fine adjustments to improve the torque control accuracy.
3. Adjustment method: The product is shipped with a torque test data card for user calibration reference, the user can select a certain scale value according to the required torque, tighten the bolt, use a measuring wrench or other test. The force instrument measures the actual torque value of the bolt. If the torque difference is small, fine compensation can be used to compensate. If there is a large difference, the coarse adjustment can be adjusted up or down one gear, and several times to obtain the required torque value.
Constant Torque Electric Wrench Operation Precautions (Special Attention Required)
1. Before connecting the power supply, check whether the power supply voltage matches the nameplate of the product. Is there a grounding device? When the power supply voltage exceeds +10%, the voltage regulator should be used, otherwise it will affect the control accuracy. Poor grounding can cause accidents.
2. The ambient temperature of the tool is -10°C-40°C. If the temperature is too high or too low, it will affect the control accuracy.
3. The initial torque of the screwed bolt must not exceed 70% of the rated torque of the tool. Do not re-tighten bolts after reaching the rated torque.
4. When the tool is used to remove the bolt, its torque must not exceed the rated torque value. Under normal circumstances, this wrench is not a bolt that is tightened or has severe corrosion. Do not remove it with this wrench to avoid damage to the tool.
5. When changing the rotation direction, it must be done after the motor stops rotating. It is forbidden to toggle the positive and negative switches during operation.
6. When the wrench is automatically stopped, the switch can be released (if the switch is not turned off, the wrench will start automatically after 5 seconds) Wait 4-5 seconds before starting the wrench, or the wrench will not start.
Constant Torque Electric Wrench Application
Constant-torque electric wrenches are widely used in the erection of structural bolted bridges, plant, tower and installation of chemical, metallurgical and power generation equipment. Constant-torque electric wrenches are also used in large machinery, lifting equipment and vehicle assembly operations as well as places where there are stringent requirements for the torque and axial pull of threaded fasteners.
After reading the above small series about the torque control of the fixed torque electric wrench, the operation precautions and the application, I believe that we should have a basic understanding of the fixed torque electric wrench. Electric wrenches are mainly used in the steel structure installation industry and are a very practical tool. The constant torque electric wrench has the characteristics of convenient operation, saving time and labor, and adjustable torque, and has been favored by many users.
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