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[CN 201610973888.6] Hydraulic pump of press machine
[CN 201610973888.6] Title of a hydraulic pump of a press: Application number of a hydraulic pump of a press: CN 201610973888.6 Applicant: Application date of Changshu Tongrun Auto Repair Equipment Co., Ltd.: 2016-11-7 Patent Type: Invention Application for a hydraulic pump of a press, including a cover plate, a hydraulic cylinder and a base, with a pump body and an air pump under the base. Features: The cover plate is embedded and welded on the opening edge of the top of the hydraulic cylinder, the base is provided with an oil return valve and an oil outlet hole, and a limit device is provided on the side of the base near the oil return valve; the base is provided with a pair of oil holes on the side connected to the hydraulic cylinder, one of the pair of oil holes The pump body is connected, and the other oil hole is connected with the air pump, and a filter screen is riveted and embedded on the oil hole. The structure is stable, reducing the use of fasteners and seals, preventing hydraulic oil leakage, and prolonging the service life; it can improve the stability of the connection and the convenience of disassembly and assembly of the filter; accurately control the oil return rate of the hydraulic oil and release it in time Excess air; reducing the operating time to improve work efficiency is beneficial to prevent the screw of the oil return valve from falling off the base due to excessive rotation during the rapid adjustment process, and ensuring the safety of use.
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