CN218467957U - Hydraulic control device based on cartridge valve - Google Patents

Hydraulic control device based on cartridge valve Download PDF

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Publication number
CN218467957U
CN218467957U CN202222204355.5U CN202222204355U CN218467957U CN 218467957 U CN218467957 U CN 218467957U CN 202222204355 U CN202222204355 U CN 202222204355U CN 218467957 U CN218467957 U CN 218467957U
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China
Prior art keywords
cartridge valve
valve
servomotor
oil
cartridge
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CN202222204355.5U
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Chinese (zh)
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曾光平
杨伟铭
敖雷
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Wuhan Sanlian Ruixin Electric Co ltd
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Wuhan Sanlian Ruixin Electric Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy

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Abstract

The utility model discloses a hydraulic control device based on cartridge valve, including first, servomotor hydro-cylinder, first, two, three and four of cartridge valve of pilot digital valve, cartridge valve, the oil-out of three of cartridge valve is connected with the start chamber of servomotor hydro-cylinder, and the oil inlet of first cartridge valve is connected with the shut-down chamber of servomotor hydro-cylinder, and the oil-out of first pilot digital valve is connected with the control mouth of three of cartridge valve, and the oil-out of two cartridge valves is connected with the shut-down chamber of servomotor hydro-cylinder. The utility model provides a servomotor hydraulic control device comprises fast-speed digital valve, cartridge valve, etc. standard hydraulic component succinctly for have the degree of integrating height during control servomotor, the high and high effect of sensitivity of reliability.

Description

Hydraulic control device based on cartridge valve
Technical Field
The utility model relates to a servomotor control technical field, concretely relates to hydraulic control device based on cartridge valve.
Background
The servomotor is an important part on the water turbine, is arranged on a power device between the fixed guide vane and the movable guide vane of the water turbine, and is controlled by a hydraulic control device, so that the servomotor is turned on and off.
The hydraulic control device of the servomotor in the prior art usually needs an electro-hydraulic converter, a guide valve and a main distributing valve to be matched with each other, so that more links and more complex structures are needed, and the phenomenon of delayed insensitivity of the control of the servomotor is caused. Therefore, it is desirable to design a hydraulic control device based on a cartridge valve to solve the above problems.
Disclosure of Invention
The utility model aims at providing a hydraulic control device based on cartridge valve to solve the above-mentioned weak point among the prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
a hydraulic control device based on a cartridge valve comprises a first pilot digital valve, a servomotor oil cylinder, a first cartridge valve, a second cartridge valve, a third cartridge valve and a fourth cartridge valve, wherein an oil outlet of the third cartridge valve is connected with a starting cavity of the servomotor oil cylinder, an oil inlet of the first cartridge valve is connected with a stopping cavity of the servomotor oil cylinder, an oil outlet of the first pilot digital valve is connected with a control port of the third cartridge valve, and an oil outlet of the second cartridge valve is connected with the stopping cavity of the servomotor oil cylinder.
And further, the system also comprises a pilot digital valve II, wherein an oil outlet of the pilot digital valve II is connected with a control port of the cartridge valve II.
Furthermore, an oil inlet of the cartridge valve IV is connected with a starting cavity of the servomotor oil cylinder, and a control port of the cartridge valve IV is connected with an oil outlet of the pilot digital valve II.
Furthermore, a control port of the first cartridge valve is connected with an oil outlet of the first pilot digital valve.
In the technical scheme, the utility model provides a pair of hydraulic control device based on cartridge valve, beneficial effect is:
(1) The utility model provides a servomotor hydraulic control device comprises fast-speed digital valve, cartridge valve, etc. standard hydraulic component succinctly for have the degree of integrating height when controlling the servomotor, the reliability is high and the high effect of sensitivity.
(2) The utility model discloses an adjust the spacing adjusting nut of valve heart of cartridge valve one and cartridge valve four, can accomplish opening and the regulation of closing time of servomotor hydro-cylinder, cancelled links such as electro-hydraulic converter, guide valve and the main distributing valve of traditional speed regulator to have anti greasy dirt ability reinforce, there is not the card to hinder, static no oil consumption, the appearance is pleasing to the eye, and the adjustment is simple, maintains advantages such as convenient.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a schematic diagram provided by an embodiment of a hydraulic control device based on a cartridge valve of the present invention.
Description of reference numerals:
the hydraulic control system comprises a 1 pilot digital valve I, a 2 pilot digital valve II, a 3 servomotor cylinder, a 4 cartridge valve I, a 5 cartridge valve II, a 6 cartridge valve III and a 7 cartridge valve IV.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the attached drawings.
As shown in fig. 1, the embodiment of the utility model provides a hydraulic control device based on cartridge valve, including first 1 of guide's digital valve, servomotor hydro-cylinder 3, first 4 of cartridge valve, two 5 of cartridge valve, three 6 of cartridge valve and four 7 of cartridge valve, the oil-out of three 6 of cartridge valve is connected with the start chamber of servomotor hydro-cylinder 3, and the oil inlet of first 4 of cartridge valve is connected with the shut-off chamber of servomotor hydro-cylinder 3, and the oil-out of first 1 of guide's digital valve is connected with the control mouth of three 6 of cartridge valve, and the oil-out of two 5 of cartridge valve is connected with the shut-off chamber of servomotor hydro-cylinder 3.
Specifically, in the embodiment, the hydraulic servomotor hydraulic control system comprises a first pilot digital valve 1, a servomotor cylinder 3, a first cartridge valve 4, a second cartridge valve 5, a third cartridge valve 6 and a fourth cartridge valve 7, wherein an oil outlet of the third cartridge valve 6 is connected with a starting cavity of the servomotor cylinder 3, so that hydraulic pressure can flow into the starting cavity of the servomotor cylinder 3 when the third cartridge valve 6 is started, an oil inlet of the first cartridge valve 4 is connected with a stopping cavity of the servomotor cylinder 3, when oil enters the starting cavity of the servomotor cylinder 3, oil in the stopping cavity of the servomotor cylinder 3 pushes the first cartridge valve 4 open under pressure, an oil outlet of the first pilot digital valve 1 is connected with a control port of the third cartridge valve 6, when the first pilot digital valve 1 is powered on, pressure oil pushes a valve core of the third cartridge valve 6 open, an oil outlet of the second cartridge valve 5 is connected with the stopping cavity of the servomotor cylinder 3, and when the second cartridge valve 5 is opened, pressure oil can enter the stopping cavity of the servomotor cylinder 3.
The utility model provides a pair of hydraulic control device based on cartridge valve, the utility model provides a servomotor hydraulic control device comprises fast-speed digital valve, cartridge valve, etc. standard hydraulic component succinctly for it integrates the degree height to have during the control servomotor, the high and high effect of sensitivity of reliability.
The utility model provides a further embodiment, still include two 2 of guide's digital valve, the oil-out of two 2 of guide's digital valve is connected with two 5 control ports of cartridge valve, utilizes two 2 control cartridge valves of guide's digital valve two 5 to open and close.
The utility model provides a further embodiment, the oil inlet of four 7 cartridge valves is connected with the start chamber of servomotor hydro-cylinder 3, and when servomotor hydro-cylinder 3 need accomplish the action of opening, the oil of the intracavity portion of starting of servomotor hydro-cylinder 3 can flow into four 7 cartridge valves, and four 7 cartridge valves's control port and the oil-out of two 2 guide digital valves are connected.
In another embodiment, the control port of the first cartridge valve 4 is connected to the oil outlet of the first pilot digital valve 1.
The traditional hydraulic system often has the jamming phenomenon and many elements are non-standard products, so that the production, installation, debugging and maintenance are inconvenient to operate, and the cartridge valve is a single control liquid resistance in principle. The liquid resistance can realize various control functions through pilot control; meanwhile, as the pilot control has the characteristic of easy recombination, one main-stage unit can have multiple functions. In addition, from the control mode, the cartridge valve unit is favorable for adopting various complicated control forms such as logic control, proportional control, digital control and the like, which is also called as soft control. It can be seen that "multifunction" and "soft control" are outstanding features of the logic cartridge valve. The advantages of the logic cartridge valve are as follows:
* Is suitable for high pressure and large flow;
* The hydraulic system is suitable for various working media, including high water base and even pure water hydraulic systems;
* Is suitable for integration and combination. The logic cartridge valve system not only has the advantages of a common hydraulic integrated system, but also has the characteristics of compact structure of an integrated block, short internal flow passage, less bending, small resistance loss, flexibility, changeability, high degree of conversion, convenience in installation and maintenance and the like;
* No leakage control;
* The high-flow-rate and low-liquid-resistance characteristics are achieved, so that the system efficiency is high, which is incomparable with a slide valve system;
* The switch has the characteristics of quick opening and closing, and can be easily controlled, including buffering and deceleration;
* The flow control characteristic is good, and the inserting element with a proper control window is arranged at the tail part of the buffer and can be used as a flow control element and a flow sensor with good linearity and working bandwidth;
* Strong oil stain resistance, reliable performance and long service life.
The working principle is as follows:
when the hydraulic servomotor works, the first pilot digital valve 1 and the second pilot digital valve 2 are powered off, the first cartridge valve 4, the second cartridge valve 5, the third cartridge valve 6 and the fourth cartridge valve 7 are closed, and the servomotor oil cylinder 3 is locked; when the first closing digital valve 1 is electrified, pressure oil flows to an opening cavity of the servomotor oil cylinder 3 after jacking the valve core of the third cartridge valve 6, and oil in an closing cavity of the servomotor oil cylinder 3 directly returns oil after jacking the valve core of the first cartridge valve 4 so as to finish the closing direction operation process of the servomotor oil cylinder 3; when the pilot digital valve II 2 is electrified, pressure oil jacks the valve core of the cartridge valve II 5 and then flows to the power-off cavity of the servomotor oil cylinder 3, and oil in the power-on cavity of the servomotor oil cylinder 3 jacks the valve core of the cartridge valve IV 7 and then directly returns oil, so that the operation process of the servomotor in the power-on direction is completed;
the first cartridge valve 4 is provided with a valve core limiting adjusting nut to adjust the flow of the pressure oil so as to adjust the closing time of the servomotor oil cylinder 3, and the fourth cartridge valve 7 is provided with a valve core limiting adjusting nut to adjust the flow of the pressure oil so as to adjust the opening time of the servomotor oil cylinder 3.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive on the scope of the appended claims.

Claims (4)

1. The hydraulic control device based on the cartridge valve is characterized by comprising a first pilot digital valve (1), a servomotor oil cylinder (3), a first cartridge valve (4), a second cartridge valve (5), a third cartridge valve (6) and a fourth cartridge valve (7), wherein an oil outlet of the third cartridge valve (6) is connected with a starting cavity of the servomotor oil cylinder (3), an oil inlet of the first cartridge valve (4) is connected with a stopping cavity of the servomotor oil cylinder (3), an oil outlet of the first pilot digital valve (1) is connected with a control port of the third cartridge valve (6), and an oil outlet of the second cartridge valve (5) is connected with the stopping cavity of the servomotor oil cylinder (3).
2. The cartridge valve-based hydraulic control device as claimed in claim 1, further comprising a second pilot digital valve (2), wherein an oil outlet of the second pilot digital valve (2) is connected with a control port of the second cartridge valve (5).
3. The hydraulic control device based on the cartridge valve is characterized in that an oil inlet of the cartridge valve IV (7) is connected with a starting cavity of the servomotor cylinder (3), and a control port of the cartridge valve IV (7) is connected with an oil outlet of the pilot digital valve II (2).
4. The cartridge valve-based hydraulic control device as claimed in claim 1, wherein the control port of the first cartridge valve (4) is connected with the oil outlet of the first pilot digital valve (1).
CN202222204355.5U 2022-08-22 2022-08-22 Hydraulic control device based on cartridge valve Active CN218467957U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222204355.5U CN218467957U (en) 2022-08-22 2022-08-22 Hydraulic control device based on cartridge valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222204355.5U CN218467957U (en) 2022-08-22 2022-08-22 Hydraulic control device based on cartridge valve

Publications (1)

Publication Number Publication Date
CN218467957U true CN218467957U (en) 2023-02-10

Family

ID=85137265

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222204355.5U Active CN218467957U (en) 2022-08-22 2022-08-22 Hydraulic control device based on cartridge valve

Country Status (1)

Country Link
CN (1) CN218467957U (en)

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