Importance

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Abstract

An adjustment and testing device for a load-limiting hoist is disclosed, comprising a frame, a variable frequency motor reducing mechanism, an adjusting turntable operating mechanism and an electric control system. The variable frequency motor reducing mechanism comprises a reducing motor and a torque sensor. The torque sensor is connected with a transmission shaft. The upper end of the transmission shaft is connected with a driving shaft. The driving shaft is connected with a driving wheel. The driving wheel is connected with a driven wheel. The driven wheel is internally connected with a driven shaft. The upper end of the driven wheel is connected with a turntable. The upper end of the turntable is equipped with a load limiter member. The adjusting turntable operating mechanism comprises a locking device, a quick safety block and an adjusting spanner. The electric control system comprises a tool kit, an inverter and a time relay. The tool kit is internally provided with a dynamometer controller and a frequency-to-voltage converter. The present invention overcomes the defects of traditional debugging methods. The debugging device consists of a set of special torque sensors and electric control mechanism, with operational convenience and high working efficiency. Due to low test error, the test result is more accurate.

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First Claim