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Double-cylinder synchronous hydraulic circuit with functions of supercharging and eliminating accumulated error

A technology of accumulative error and hydraulic circuit, which is applied in the direction of fluid pressure actuators, servo motors, mechanical equipment, etc., can solve the problems of poor synchronization accuracy of two oil cylinders, and achieve a high degree of synchronization, strong synchronization ability, and high degree of synchronous motion. Effect

Active Publication Date: 2015-01-07
扬州智创企业运营管理服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a dual-cylinder synchronous hydraulic circuit with the functions of boosting and eliminating cumulative errors, especially to solve the large and uncertain load difference between the two cylinders existing in the existing dual-cylinder parallel synchronous hydraulic circuit. The disadvantage of poor synchronization accuracy of the two oil cylinders, through the advantages of the double-cylinder series synchronous hydraulic circuit and the double-cylinder parallel synchronous hydraulic circuit integrated by the present invention, can also increase the pressure of the two hydraulic cylinders and eliminate the cumulative error, and the synchronization degree is high and bears Strong synchronization ability, good flexibility and wide application range when the load changes

Method used

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  • Double-cylinder synchronous hydraulic circuit with functions of supercharging and eliminating accumulated error
  • Double-cylinder synchronous hydraulic circuit with functions of supercharging and eliminating accumulated error
  • Double-cylinder synchronous hydraulic circuit with functions of supercharging and eliminating accumulated error

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Embodiment Construction

[0013] The present invention as image 3 As shown, a dual-cylinder synchronous hydraulic circuit with the functions of boosting and eliminating accumulated errors includes a left cylinder 9, a right cylinder 12, a left oil circuit A, and a right oil circuit B; the rod cavity C1 of the left cylinder 9 and the right cylinder The rod cavity C4 of 12 is connected in parallel and then divided into three circuits, one of which is connected to the right oil circuit B, and the other two channels are respectively connected to the control oil ports of the hydraulic control check valves 14 and 19 through the control oil circuit; the rodless chamber C2 of the left cylinder 9 The set hydraulic control check valve 14 is connected to the lower upper cavity C8 of the synchronous cylinder 17; the rodless cavity C3 of the right cylinder 12 is connected to the upper cavity C5 of the synchronous cylinder 17 through the set hydraulic control check valve 19; The lower chamber C6 and the lower lower...

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Abstract

The invention discloses a double-cylinder synchronous hydraulic circuit with functions of supercharging and eliminating an accumulated error. The hydraulic circuit comprises a left oil cylinder, a right oil cylinder, a left oil line A and a right oil line B, wherein the rod cavities of the left and right oil cylinders are divided into three paths after being connected in parallel; one path is connected with the right oil line B, and the other two paths are respectively connected with the control oil ports of two hydraulic control one-way valves by control oil paths; the rodless cavities of the left and right oil cylinders are respectively connected with upper cavities arranged on the lower and upper parts of a synchronous oil cylinder by the arranged hydraulic control one-way valves; after being connected in parallel, lower cavities on the lower and upper parts of the synchronous oil cylinder are connected with the left oil line A; one side of an arranged three-position four-way solenoid directional valve is respectively connected with the left oil line A and the right oil line B; the other side of the arranged three-position four-way solenoid directional valve is respectively connected with the middle cavity and lower cavity of an arranged pressure cylinder; after an oil return check valve is connected between the middle cavity and upper cavity of the pressure cylinder, the middle cavity and upper cavity are connected with the rodless cavity of the right oil cylinder and the oil lines of the hydraulic control one-way valves; a connecting oil line for the rodless cavities of the left and right oil cylinders is connected with a high-pressure electromagnetic ball valve; and a connecting oil line for the high-pressure electromagnetic ball valve and an oil discharging check valve is connected with a pressure transmitter. The double-cylinder synchronous hydraulic circuit has the advantages of good flexibility, high synchronization accuracy and wide application range.

Description

technical field [0001] The invention relates to a double-cylinder synchronous hydraulic circuit, in particular to a double-cylinder synchronous hydraulic circuit with the functions of increasing pressure and eliminating accumulated errors. Background technique [0002] In the hydraulic system, the circuit that keeps the relative position or speed of two or more hydraulic cylinders in motion is called a synchronous circuit. At present, there are more industrial applications of double-cylinder synchronous hydraulic circuits. From the classification of connection methods, it can be divided into two-cylinder series synchronous hydraulic circuits and double-cylinder parallel synchronous hydraulic circuits. The common synchronous hydraulic circuit of two cylinders in series is mainly composed of two hydraulic cylinders in series, which has the advantage of high degree of synchronization of the two cylinders, such as figure 1 As shown, the common series synchronous hydraulic circu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B11/22
Inventor 朱兴龙高龙琴陈启银张远超
Owner 扬州智创企业运营管理服务有限公司
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