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A hydraulic press with two sets of hydraulic systems

A hydraulic system and hydraulic machine technology, applied in the field of hydraulic machinery, can solve the problems of high equipment cost and failure rate, high energy loss, complex structure, etc., and achieve the effect of low cost, simple equipment and high efficiency

Inactive Publication Date: 2011-12-14
徐克琼
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a hydraulic press with two sets of hydraulic system structures, which overcomes the defects of the above-mentioned hydraulic press such as complex structure, high equipment cost and failure rate, high energy loss and low efficiency

Method used

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  • A hydraulic press with two sets of hydraulic systems

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Embodiment Construction

[0010] The hydraulic machine has a hydraulic cylinder (7), and the piston of the hydraulic cylinder (7) divides the hydraulic cylinder (7) into three hydraulic chambers (A1), (A2) and (A3). Each hydraulic chamber is connected to the inlet and outlet oil Ports (a), (b) and (c) are connected, and the oil inlet port of the hydraulic pump (2) is directly connected to the oil tank (12) through the oil filter (1), so that the flow direction of the check valve (3) is in line with that of the oil pump (2) The direction of the oil outlet is consistent, and at the same time, the check valve (3) is connected in series between the oil outlet of the oil pump (2) and the oil inlet of the electromagnetic reversing valve (5). The oil outlet is directly communicated with the fuel tank (12), and the oil inlet of the overflow valve (4) is connected to the oil circuit between the check valve (3) and the oil inlet of the solenoid valve (5), and the solenoid valve (5) One of the oil outlets of ) co...

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Abstract

A hydraulic machine with two sets of hydraulic systems, which is composed of a hydraulic cylinder and a hydraulic system connected to the hydraulic cylinder. Its characteristics are: the piston of the hydraulic cylinder is composed of two parts with different diameters, and the piston divides the hydraulic cylinder. There are 3 hydraulic chambers A1, A2, and A3. The hydraulic system realizes fast forward-pressurization-holding-fast retreat-reset of the piston through different oil supply methods to the three hydraulic chambers of A1, A2, and A3. And staying in the process, it has the advantages of simple equipment, low cost, low failure rate, low energy consumption and high efficiency.

Description

technical field [0001] The invention relates to a hydraulic machine, in particular to a hydraulic machine with two hydraulic system structures, and belongs to the technical field of hydraulic machinery. Background technique [0002] The hydraulic press is a kind of mechanical equipment that realizes the technological process through pressure. In many technological occasions, the hydraulic press is required to realize the subordinate working cycle, namely: fast forward-pressurization-holding pressure-fast retreat-reset and stop. In order to realize the above working cycle, the hydraulic system of the hydraulic press needs a large flow rate when it is fast-feeding, and the flow rate is very small when it is pressurized, and the flow rate is only the flow rate of internal leakage when it is maintained. Correspondingly, in the hydraulic system In terms of design and structure, a low-pressure large-flow hydraulic pump and a high-pressure small-flow pump are generally used to join...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B30B15/16F15B15/18
Inventor 徐克琼
Owner 徐克琼