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Rapid forging press servo direct-drive hydraulic system

A technology of hydraulic system and forging press, which is applied in the field of fast forging hydraulic unit drive control in the forging industry, can solve the problems of high oil cleanliness, high use and maintenance costs, harsh use conditions, etc., to improve the production environment and improve efficiency. , the effect of fast response

Inactive Publication Date: 2014-06-18
兰州兰石重工有限公司
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the components such as pumps and valves required by the pump control method are very expensive, have high requirements for oil cleanliness, harsh operating conditions, high operating and maintenance costs, and because the oil pump empty cycle time accounts for more than 50% of the working time on average, resulting in energy a lot of waste

Method used

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  • Rapid forging press servo direct-drive hydraulic system

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Embodiment Construction

[0013] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0014] figure 1 It is a schematic diagram of the composition of the servo direct drive hydraulic system of the rapid forging press proposed by the present invention. The hydraulic system of the whole rapid forging press is mainly composed of the master cylinder piston rod 9, the two-way quantitative pump 2, the servo motor 1, the proportional overflow valve 4, the one-way valve 6 and the hydraulic pipeline 3; the servo motor 1 is connected and drives the two-way quantitative pump 2 to run , the oil outlet and the oil inlet of the two-way quantitative pump 2 are respectively connected to the rodless cavity 7 and the rod cavity 8 of the master cylinder of the press. The press presses down when the rodless chamber 7 enters oil and the rod chamber 8 discharges oil; the press returns when the rod chamber 8 enters oil and the rodless chamber 7 discharges oil. In this way...

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Abstract

The invention discloses a rapid forging press servo direct-drive hydraulic system, and belongs to the field of rapid forging press hydraulic transmission control. The rapid forging press servo direct-drive hydraulic system mainly comprises a main cylinder, a bidirectional quantitative pump, a servo motor, an overflow valve, a one-way valve, a hydraulic pipeline, a rodless cavity and a rod cavity of a main press cylinder and the like, an oil outlet and an oil inlet of the bidirectional quantitative pump are connected to the rodless cavity and the rod cavity respectively, the servo motor directly drives the bidirectional quantitative pump to run, a hydraulic actuating mechanism is directly driven by a servo motor and quantitative pump set so that a press continuously runs, the servo direct-drive hydraulic system controls the motor instead of controlling a control object (the valve or pump) in an original press hydraulic system, and the operating mode of the motor is improved into an intermittent operating mode from a continuous operating mode. By the aid of the rapid forging press servo direct-drive hydraulic system, unit efficiency can be effectively improved, energy consumption is reduced, the production environment is improved, so that the press more accurately and stably runs in a more energy-saving and environment-friendly manner, and the technical level of Chinese forging press equipment is integrally improved.

Description

technical field [0001] The invention belongs to the field of transmission control of a rapid forging hydraulic unit in the forging industry. Background technique [0002] Since the birth of the world's first forging hydraulic press, the transmission type of hydraulic press has undergone two major developments: water pump-potential station and oil pump direct transmission. At present, the oil pump direct transmission control system has been developed into two control modes, namely valve control mode and pump control mode. [0003] The valve control mode is the valve control system of quantitative pump-throttle valve throttling and speed regulation. By investing different numbers of oil pumps, throttle valves, and proportional pressure valves to form a joint control mode, the requirements of different forging speeds can be realized, and it can meet the needs of high pressure, large flow, and frequent reversing without impact. , Pressurization stroke, unloading and return cyc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J9/18F15B21/08
Inventor 向树民高俊峰何琪功卢光荣
Owner 兰州兰石重工有限公司
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