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Quantitative fine-tuning oil supply device

An oil supply device and quantitative technology, which is applied in the field of quantitative fine-tuning oil supply device for hydraulic oil cylinders, can solve the problems of manufacturing an overall control device, high price of a servo valve, inconvenient promotion and application, etc. Wide range of effects

Inactive Publication Date: 2011-12-28
KEDA INDUSTRIAL GROUP CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0002] At present, during the movement of the hydraulic cylinder, it is sometimes necessary to precisely control its midway position during the movement. The position feedback stroke closed-loop system is used for control, but this control method is relatively expensive due to the servo valve, and because the servo valve is a high-precision hydraulic component, it must also be used in conjunction with the corresponding oil filter device, so that the overall control The production cost of the device is relatively high, and the structure is relatively complicated, which is not convenient for popularization and application

Method used

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Embodiment Construction

[0016] Such as figure 1 As shown, the quantitative fine-tuning oil supply device of the present invention includes a switch valve 3 connected between the system pressure oil source 10 and the first directional valve 2 of the working cylinder 1, and the system pressure oil source 10 and the first direction valve 2 of the working cylinder 1 A second directional valve 4 and a quantitative oil supply module 5 are connected in sequence between the first directional valve 2 .

[0017] Such as figure 2 As shown, in the present invention, the quantitative oil supply module 5 includes a double-piston rod type quantitative oil supply cylinder 51, and four check valves 52, 53, 54, 55 connected to the quantitative oil supply cylinder. The oil cylinder 51 is provided with two oil storage chambers C1, C2 placed at the end and two annular oil chambers C3, C4 in the middle. The four check valves 52, 53, 54, 55 are respectively connected to the The oil inlets and oil outlets of the oil stor...

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Abstract

The invention belongs to the field of oil supply equipment for hydraulic oil cylinders. Specifically disclosed is a quantitative fine-tuning oil supply device, which includes an on-off valve connected between the system pressure oil source and the directional valve of the working oil cylinder, and another connecting valve is sequentially connected between the system pressure oil source and the directional valve of the working oil cylinder. A directional valve and quantitative oil supply module. The quantitative fine-tuning oil supply device can carry out quantitative oil supply to the working oil cylinder, and fine-tune the position of the working oil cylinder, thereby realizing precise control, so that the working oil cylinder can accurately stop at any predetermined position within the stroke range. In addition, the hydraulic components and electrical components required in the present invention are all common components, with low production cost, and there is no need to write complex closed-loop control algorithms, the technical threshold is low, and it has a broad mass base, which is convenient for popularization and application.

Description

technical field [0001] The invention belongs to the field of oil supply equipment for hydraulic cylinders, and in particular relates to a quantitative fine-tuning oil supply device for hydraulic cylinders, which can accurately stop the hydraulic cylinder at any position within the stroke range. Background technique [0002] At present, during the movement of the hydraulic cylinder, it is sometimes necessary to precisely control its midway position during the movement. The position feedback stroke closed-loop system is used for control, but this control method is relatively expensive due to the servo valve, and because the servo valve is a high-precision hydraulic component, it must also be used in conjunction with the corresponding oil filter device, so that the overall control The manufacturing cost of the device is relatively high, and the structure is relatively complicated, which is not convenient for popularization and application. Contents of the invention [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/044
Inventor 陈凌杰卢志刚
Owner KEDA INDUSTRIAL GROUP CO LTD
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