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A lifting hydraulic system

A technology of hydraulic system and pressure measuring joint, which is applied in the field of hydraulic system, can solve the problem of high cost of hydraulic system, and achieve the effect of improving safety, reducing cost and speed

Active Publication Date: 2018-01-26
WUHAN MARINE MACHINERY PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of high cost of the lifting hydraulic system in the prior art, the embodiment of the present invention provides a lifting hydraulic system

Method used

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  • A lifting hydraulic system

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Embodiment

[0022] The embodiment of the present invention provides a lifting hydraulic system, such as figure 1 As shown, the lift hydraulic system includes: a balance valve 1, a first shuttle valve 2, a first electromagnetic reversing valve 3, a second electromagnetic reversing valve 4 and a first throttle valve 5, the oil inlet of the balance valve 1 is connected to The first oil inlet port of the first shuttle valve 2 is connected, the oil outlet port of the balance valve 1 is connected with the A port of the motor a, and the B port of the motor a is respectively connected with the control oil port of the balance valve 1 and the first electromagnetic reversing valve 3 The A port of the balance valve 1 is also connected with the B port of the first electromagnetic reversing valve 3, and the first oil port of the first throttle valve 5 is connected with the control port of the balance valve 1. The second oil port of the flow valve 5 communicates with the B port of the first electromagne...

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Abstract

The invention discloses a promotion hydraulic system, and belongs to the field of hydraulic systems. The promotion hydraulic system comprises a balance valve, a first shuttle valve, a first electromagnetic reverse valve, a second electromagnetic reverse valve and a first throttle valve; an oil inlet of the balance valve is communicated with a first oil inlet of the first shuttle valve; an oil outlet of the balance valve is communicated with a port A of a motor; a port B of the motor is respectively communicated with a control oil port of the balance valve and a port A of the first electromagnetic reverse valve; the control oil port of the balance valve is also communicated with a port B of the first electromagnetic reverse valve; an oil inlet of the first throttle valve is communicated with the control oil port of the balance valve; an oil outlet of the first throttle valve is communicated with a port B of the first electromagnetic reverse valve; and a port C of the first electromagnetic reverse valve is communicated with a second oil inlet of the first shuttle valve. The balance valve in the promotion hydraulic system is a one-way balance valve; and the cost of the one-way balance valve is lower than the cost of a two-way balance valve, so that the cost of the promotion hydraulic system is reduced.

Description

technical field [0001] The invention relates to the field of hydraulic systems, in particular to a lifting hydraulic system. Background technique [0002] The lifting hydraulic system is often used in the hydraulic system of the crane and the lifting hydraulic system of the offshore platform. [0003] In the existing lifting hydraulic system, the oil intake volume of the two working oil ports of the motor is controlled by a two-way balance valve, and the two-way balance valve includes two balance valves. [0004] In the process of realizing the present invention, the inventor finds that there are at least the following problems in the prior art: [0005] In the process of lifting heavy objects in the existing lifting hydraulic system, the balance valve does not work, and the price of the two-way balance valve is high, which increases the cost of the lifting hydraulic system. Contents of the invention [0006] In order to solve the problem of high cost of the lifting hydr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B11/00F15B13/02B66C13/12
CPCB66C13/12F15B11/00F15B13/02
Inventor 许文艺张玲珑刘利明刘杰黄冠乔
Owner WUHAN MARINE MACHINERY PLANT
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