Improved energy-storage impact-type pneumatic wrench

Abstract

The invention relates to an improved energy-storage impact-type pneumatic wrench. An air distribution mechanism is additionally arranged in an impact mechanism, the structural design of a hammer device is optimized, the impact energy and the output torque are effectively improved and the dead weight is obviously reduced. The energy-storage impact-type pneumatic wrench has the outstanding advantages that the structure is unique and novel, the weight is light, the torque is large, the pneumatic wrench is flexible and convenient and is suitable for mobile operation, the safety, the reliability and the efficiency are high, the labor productivity can be greatly improved and the labor intensity of operators is reduced. The improved energy-storage impact-type pneumatic wrench is suitable for use in an assembling line and in dangerous environments such as flammable and explosive environments, upper air and the like, and is especially suitable for rushed deadlines and rushed repair operation in industries such as petroleum, chemical industry and the like. The improved energy-storage impact-type pneumatic wrench is a high-efficiency manual tool for disassembling and assembling nuts, and can be widely used for bolt disassembling and assembling operation in industries such as machinery manufacture, petroleum, chemical industry, power plants, bridges, ships, locomotives and the like.

Description

technical field [0001] The present invention relates to a B25B23 / 00 wrench or accessory device, in particular to an improved stored-energy impact gas trigger. Background technique [0002] The air trigger is used for removing and installing large size bolts and nuts. The original commonly used type is the pendulum type air trigger, not only the limit torque is limited, the rusty bolts cannot be removed, but also the torque weight is relatively small and cumbersome, which is not suitable for high-altitude operations. [0003] The existing impact air trigger relies on the rotating impact block to hit the wrench shaft, and drives the sleeve to rotate to tighten or loosen the bolts and nuts. The mass of the impact block is relatively small, and the speed when the impact block hits the wrench shaft is also relatively small. resulting in a limited torque-to-weight ratio. [0004] The impact action of the existing traditional impact gas trigger is completed in the hammer body. Th...

AI Technical Summary

Problems solved by technology

The original commonly used type is the pendulum type air trigger, not only the limit torque is limited, the rusty bolts cannot be removed, but also the torque weight is relatively small and cumbersome, which is not suitable for climbing operations

[0003] The existing impact air trigger relies on the rotating impact block to hit the wrench shaft, and drives the sleeve to rotate to tighten or loosen the bolts and nuts. The mass of the impact block is relatively small, and the speed when the impact block hits the wrench shaft is also relatively small. results in a limited torque-to-weight ratio

[0004] The impact action of the existing traditional impact gas trigger is completed in the hammer body. The hammer body is a hollow structure. The improvement of impact kinetic energy weakens the final output torque of the air trigger

[0005] The existing traditional impact air trigger air intake joint is usually connected with the handle by thread. When in use, the air intake hose is connected to the air intake joint, and the high-pressure air is input into the air trigger through the leather tube. The length of the leather tube is generally tens of Because the leather tube is definitely twisted after it is connected to the air inlet joint, the threaded joint is prone to loosen after the high-pressure air circuit is connected, or the output power of the air motor will be reduced due to high-pressure air leakage, or the thread will be rotten and the teeth will fall off. Buckle, and even cause the pipe head to throw out and hurt people

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