Impact wrench

Abstract

The invention discloses an impact wrench, which comprises a housing, wherein the housing is internally provided with a controller, a switch, a motor and a gear, wherein the controller controls the motor through the switch; the middle part of a rotor of the motor is transversely provided with a motor shaft hole, and the motor shaft hole is internally provided with a motor shaft; the output end of the motor shaft is connected with the gear, and the root of the gear is provided with an oil seal; and the rotor is transversely provided with ventilation openings. The impact wrench disclosed by the invention is provided with the ventilation openings and ventilation holes on the rotor, thereby reducing the weight of the rotor, improving the speed of the motor in the operation process, reducing thecurrent, enabling the impact wrench to be more energy-saving in the using process, and enabling the battery life of the wrench to be more durable. In addition, the impact wrench realizes the ventilation and heat dissipation of the motor through the design of the various shapes of ventilation openings and ventilation holes, so that the motor performance is improved, the operation of the motor is more stable, and the service life is longer. Meanwhile, the setting of the oil seal can effectively prevent oil from entering the motor when the impact wrench is in operation.

Description

technical field [0001] The invention relates to a wrench, in particular to an impact wrench. Background technique [0002] The impact wrench is a tool for screwing screws, bolts, fixtures, etc.; the current existing impact wrench consumes a lot of energy during use, the battery pack has poor battery life, and the battery life is not long-lasting; and the existing impact wrench is The phenomenon of motor overheating is easy to occur during use, and the working performance of the motor is affected; in addition, the current existing impact wrenches have different degrees of oil leakage during use, resulting in oil entering the motor, and oil stains will form when the amount of oil entering is too much Accumulated dirt degrades the insulation, and in severe cases may burn the motor. Contents of the invention [0003] In order to solve the shortcomings of the above-mentioned technologies, the present invention provides an impact wrench. [0004] In order to solve the above te...

AI Technical Summary

Problems solved by technology

[0002] The impact wrench is a tool for screwing screws, bolts, fixtures, etc.; the current existing impact wrench consumes a lot of energy during use, the battery pack has poor battery life, and the battery life is not long-lasting; and the existing impact wrench is The phenomenon of motor overheating is easy to occur during use, and the working performance of the motor is affected; in addition, the current existing impact wrenches have different degrees of oil leakage during use, resulting in oil entering the motor, and oil stains will form when the amount of oil entering is too much Accumulation of dirt reduces insulation, and may burn the motor in severe cases

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