Mechanical-hydraulic composite energy-saving servo hydraulic machine with toggle rod mechanism

A servo hydraulic press and mechanical hydraulic technology, applied in the field of hydraulic presses, can solve problems that hinder the popularization and development of servo presses, high-power servo motors are expensive, increase design difficulty and cost, and achieve reduced power, low calorific value, and low oil consumption. Small amount of effect
CN103963334AActive Publication Date: 2014-08-06XI AN JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XI AN JIAOTONG UNIV
Publication Date
2014-08-06

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Abstract

A mechanical-hydraulic composite energy-saving servo hydraulic machine with a toggle rod mechanism comprises a work table which is fixed on a base. A machine body is of a three-beam and four-column structure, the four stand columns are hollow, pull rods penetrate through the inside of the stand columns, the two ends of each pull rod are fixed on an upper beam and the base respectively through tightening nuts, guide rails are fixed on the stand columns, and linear guide rail sliding blocks are fixed on the outer walls of press sliding blocks and slide up and down on the guide rails. By combining high control precision of a servo motor, high operation speed of a mechanical structure and large load of a hydraulic cylinder, idle stroke is driven by the independent servo motor and the mechanical structure, and work stroke is driven by a hydraulic system. The mechanical-hydraulic composite energy-saving servo hydraulic machine can lower power of the servo motor, improve the energy utilization rate and improve flexibility.
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Description

technical field

[0001] The invention relates to a hydraulic machine, in particular to a mechanical-hydraulic composite energy-saving servo hydraulic machine with a toggle mechanism. Background technique

[0002] The press is a kind of equipment widely used in the field of pressure forming, which can complete various forming processes such as deep drawing, punching, forging and bending. Common presses include mechanical presses and hydraulic presses. Mechanical presses mainly use ordinary motors to drive the crank slider mechanism to complete reciprocating mechanical movements. Mechanical presses are characterized by fast movement speed and simple structure. After the design is completed, the movement curve of the slider is also established, which reduces the versatility of the mechanical press, and the traditional mechanical press generally has a flywheel and a clutch that consumes 20% of the total energy. The hydraulic machine is powered by the hydraulic pump, and the cont...

Claims

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