Two-way hydraulic machine

Abstract

The invention discloses a two-way hydraulic machine, which comprise a machine seat, upright posts, a rack and a hydraulic cylinder, wherein the hydraulic cylinder is fixed to the rack; the rack is mutually fixed with the machine seat by four upright posts; the left and the right of the upper part of the hydraulic cylinder are symmetrically and respectively connected with upper oil pipes; the left and the right of the lower part of the hydraulic cylinder are symmetrically and respectively connected with lower oil pipes; the hydraulic cylinder are connected with the upper oil pipes and the lower oil pipes at two sides by solenoid directional valves; oil inlet pipes and oil return pipes are bilaterally and respectively arranged at the positions below the solenoid directional valves; and the oil inlet pipes and the oil return pipes are connected with the hydraulic cylinder. According to the invention, the upper oil pipes and the lower oil pipes are arranged at two sides of the hydraulic cylinder, so that the rising height of the whole hydraulic cylinder is high, the pressure is moderate, the pressing area is larger, the usage range is wider, and the stability of the whole hydraulic machine is better; in addition, a filter screen is arranged at each oil pipe, so that impurities in oil can be filtered off, and the service life of the hydraulic machine is longer.

Description

technical field [0001] The invention belongs to the field of hydraulic machines and relates to a two-way hydraulic machine. Background technique [0002] Hydraulic presses are widely used in the field of machinery manufacturing. The hydraulic presses in the prior art have a large pressing area and a large stroke. Small tonnage hydraulic presses have a small pressing area and a small stroke. None of the hydraulic presses has a large pressing area, but the stroke should be small and the pressure should be small. , If the pressure is too high, it will have a certain impact on the oil pipe, the oil pipe is easy to burst, and the hydraulic cylinder is also easy to be damaged. Therefore, it is necessary to [0003] A new technical solution is provided to solve the above technical problems. Contents of the invention [0004] The object of the present invention is to provide a double-channel hydraulic press with large pressing area and moderate pressure. [0005] The present in...

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Problems solved by technology

[0002] Hydraulic presses are widely used in the field of machinery manufacturing. The hydraulic presses in the prior art have a large pressing area and a large stroke. Small tonnage hydraulic presses have a small pressing area and a small stroke. None of the hydraulic presses has a large pressing area, but the stroke should be small and the pressure should be small. , if the pressure is too high, it will have a certain impact on the oil pipe, the oil pipe is easy to burst, and the hydraulic cylinder is also easy to be damaged

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