Research And Development Of Impulse Wrench

The paper briefly introduces the development station, main structureand work theory of the wrench. The development history and structurevariation of impulse wrench are introduced in detail. And the impulsewrench with independent property right is designed and manufactured.With fluid drive theory, the work process and theory about impulsewrench is analyzed. By plenty of tests and tackling key problems, thecorrect relations of impulse frequency and work torque, fluid leakage,overfall valve, manufacture precision about parts are found out. Theproblem is solved for the spring's life, which is the key part influencingon the life of whole impulse wrench. The form condition of impulseprocess is cleared. For research and development series of impulse tools,the paper also supplies the experiences on technology and manufactureabout it.