CN216044702U - Integrated valve bank with oil way switching speed regulation function - Google Patents

Abstract

The utility model relates to an integrated valve group with an oil circuit switching speed regulation function, which comprises a valve block, wherein an overflow valve, a one-way valve, a two-position three-way electromagnetic valve and a flow control valve are installed on the valve block, a main oil inlet P, a main oil return port T and a pressure monitoring port M of pressure oil are arranged on the side wall of the valve block, the main oil inlet P is respectively communicated with the two-position three-way electromagnetic valve, an oil inlet of the overflow valve and the pressure monitoring port M, an oil outlet of the overflow valve is communicated with the main oil return port T, the pressure monitoring port M is connected with a pressure gauge through a pipeline, one path of an oil outlet of the two-position three-way electromagnetic valve is communicated with an A1 port on the valve block, and the other path of the oil outlet of the two-position three-way electromagnetic valve is respectively communicated with an A1 port and an A2 port on the valve block after passing through the flow control valve; the valve has two control functions, can realize stepless regulation of the main working oil way executing element under different flow requirements, also considers the flow of the auxiliary working oil way, and is beneficial to ensuring the service performance of the valve.

Description

Integrated valve bank with oil way switching speed regulation function

Technical Field

The utility model relates to an integrated valve bank with oil circuit switching and speed regulation functions.

Background

The mechanical construction equipment generally has the characteristics of more actuating mechanisms and difficulty in troubleshooting, and the conventional method for controlling the action of the actuating mechanisms at present mostly adopts one-control-one mode, namely one path or one piece of valve to control the action of one actuating mechanism, and realizes the multifunctionality by increasing the number of control valve pieces; not only causes power waste, but also leads to extremely complex design of a hydraulic system, the usage amount of rubber tubes and pipe fittings is increased sharply, and after-sale maintenance is troublesome.

When a certain actuating mechanism does not act frequently but has a working condition of occasional action, if the idea of controlling one valve is continuously adopted, the using number of the valve elements is increased, and the manufacturing cost is increased; secondly, the actuating mechanism only acts occasionally, the control valve is in an idle closed non-operating state for a long time, the corrosion and rust symptoms are easy to occur, the actuating mechanism can not work due to the clamping stagnation of the control valve when the actuating mechanism needs to act, and the maintenance and after-sale cost is increased without any reason; therefore, the concept of one control has obvious defects when used under certain working conditions; therefore, how to overcome the above technical problems and disadvantages is a problem to be solved.

Disclosure of Invention

The utility model aims to overcome the defects described in the background technology, thereby realizing an integrated valve group which adopts a modular design, can realize two control functions of one valve, can realize the stepless regulation of a main working oil path execution element under different flow requirements, also gives consideration to the flow of an auxiliary working oil path, and is beneficial to ensuring the service performance of a valve piece.

In order to achieve the purpose, the technical scheme of the utility model is as follows: the utility model provides an integrated valves that possesses oil circuit switching adjustable speed, it includes the valve piece, install overflow valve, check valve, two three-way solenoid valve, flow control valve on the valve piece, be provided with pressure oil's main oil inlet P, main oil return port T and pressure monitoring mouth M on the valve piece lateral wall, main oil inlet P communicates with the oil inlet and the pressure monitoring mouth M of two three-way solenoid valve, overflow valve respectively, and the oil-out and the main oil return port T intercommunication of overflow valve, pressure monitoring mouth M have the manometer through the pipe connection, two three-way solenoid valve's oil-out all the way with the A1 mouth intercommunication on the valve piece, another way behind the flow control valve respectively with the A1 mouth and the A2 mouth intercommunication on the valve piece.

Furthermore, the flow control valve comprises a one-way flow control valve and a pressure compensator, an oil inlet of the one-way flow control valve is communicated with an oil outlet of the two-position three-way electromagnetic valve, one way of the one-way flow control valve is communicated with an A2 port on the valve block after passing through the pressure compensator, and the other way of the one-way flow control valve is communicated with an A1 port on the valve block after passing through the one-way valve.

Furthermore, an A1 port of the valve block is connected with an actuator of a main working oil path, and an A2 port of the valve block is connected with an actuator of an auxiliary working oil path.

Furthermore, the overflow valve is a direct-acting plug-in type overflow valve, the one-way valve is a plug-in type one-way valve, the two-position three-way electromagnetic valve is a plug-in type two-position three-way electromagnetic valve, and the flow control valve is a plug-in type flow control valve of the integrated pressure compensator.

The integrated valve bank with the oil path switching speed regulation function has the beneficial effects that:

1. the integrated valve group with the oil circuit switching speed regulation function can realize two control functions of one valve, and one overflow valve can respectively control the pressure of the main oil circuit and the auxiliary oil circuit; one electromagnetic valve can control the real-time switching of the main working oil circuit and the auxiliary working oil circuit, thereby greatly reducing the using number of hydraulic valves and effectively reducing the manufacturing and after-sale cost;

2. the integrated valve group with the oil circuit switching speed regulation function can realize stepless regulation of the main working oil circuit execution element under different flow requirements, also gives consideration to the flow of the auxiliary working oil circuit, and is beneficial to ensuring the service performance of a valve piece;

3. the integrated valve group with the oil circuit switching speed regulation function adopts a modular design, and the pore passages are communicated with the interior of the valve block, so that the use number of external pipelines and joints is greatly reduced, and the risk of oil leakage can be effectively reduced.

Drawings

FIG. 1 is a hydraulic schematic of the present invention;

FIG. 2 is a front view of the external structure of the utility model;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a left side view of FIG. 2;

FIG. 5 is a right side view of FIG. 2;

in the figure: the pressure control valve comprises a valve block 1, an overflow valve 2, a three-way electromagnetic valve 3-two positions, a check valve 4, a flow control valve 5, a check flow control valve 5.1, a pressure compensator 5.2 and a pressure gauge 6.

Detailed Description

The integrated valve set with oil circuit switching and speed regulation according to the present invention is described in more detail with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Examples

Referring to fig. 1, the integrated valve set with an oil path switching speed regulation of the embodiment adopts a modular design, can realize two-control functions of one valve, can realize stepless regulation of a main working oil path execution element in different flow demands, and also considers the flow of an auxiliary working oil path, and is beneficial to ensuring the service performance of a valve element.

The valve block 1 is provided with a main oil inlet P and a main oil return port T; the direct-acting cartridge overflow valve 2 controls the working pressure of the integrated valve group and is arranged on a pressure oil channel between a main oil inlet channel P of the valve block 1 and an oil inlet II of the cartridge two-position three-way electromagnetic valve 3, so that the pressure of a main working oil channel can be controlled, the pressure of an auxiliary working oil channel after switching can be controlled, and the two-control function of one valve is realized; a pressure oil inlet I of the direct-acting cartridge overflow valve 2 is communicated with a main oil inlet P of the valve block 1 inside the valve block 1, and an oil discharge port II of the direct-acting cartridge overflow valve 2 is communicated with a main oil return T port arranged on the valve block 1; when the working pressure of the main oil inlet path P reaches the set value of the spring 2.1 in the valve core of the direct-acting plug-in type overflow valve 2, the valve core of the overflow valve 2 overcomes the spring force to open under the action of pressure oil, and high-pressure oil can reach the main oil return T port of the valve block 1 through the ports I and II of the overflow valve 2, so that the unloading protection function is realized.

The main oil inlet P has two channels which are intersected and communicated in the valve block 1, one channel is communicated with an oil inlet II of the plug-in two-position three-way electromagnetic valve 3, the other channel is communicated with an M port arranged on the valve block 1, and the M port is provided with a pressure gauge 6 connected through a hydraulic pipeline for observing the real-time pressure values of the main working oil circuit and the auxiliary working oil circuit; a pore passage of the main oil inlet P is led to an oil inlet II of the plug-in type two-position three-way electromagnetic valve 3, and the seamless switching of a main working oil path and an auxiliary working oil path can be realized by controlling the power on and off of an electromagnet 1DT of the two-position three-way electromagnetic valve 3, so that the two-control function of one valve is realized;

when the electromagnet 1DT of the two-position three-way electromagnetic valve 3 is not electrified, the two-position three-way electromagnetic valve 3 is in a normal position, the integrated valve bank is in the working condition of the main working oil circuit, and at the moment, oil can pass through an oil inlet II of the two-position three-way electromagnetic valve 3 to an oil outlet I; the rear pressure oil hole channel of the two-position three-way electromagnetic valve 3 is intersected and communicated in the valve block 1 to be divided into two paths, one path is communicated with an A1 port arranged on the valve block 1 to drive a corresponding execution element to act, the other path is communicated with an oil outlet I of the plug-in type one-way valve 4, the plug-in type one-way valve 4 adopts a full-guide cone valve core structure, a cone valve steel ball is closed under the action of a reset spring force, namely, an oil path from the oil outlet I to an oil inlet II of the one-way valve 4 is not communicated, high-pressure oil on an oil path of an A1 port is effectively prevented from reversely flowing, and a main working oil path and an auxiliary working oil path are ensured to be independently opened;

when the electromagnet 1DT of the two-position three-way electromagnetic valve 3 is electrified, the valve core of the two-position three-way electromagnetic valve 3 moves leftwards under the pushing of electromagnetic force, the two-position three-way electromagnetic valve 3 is switched to the electrified position, the oil outlet of the two-position three-way electromagnetic valve 3 is sealed, the oil inlet is communicated with the oil outlet, and the integrated valve group is switched to the working condition of the auxiliary working oil circuit; the pressure oil passes through an oil inlet II and an oil outlet III of the two-position three-way electromagnetic valve 3 and then is communicated with an oil inlet I of a plug-in type flow control valve 5 of the integrated pressure compensator in the valve block 1.

The plug-in type flow control valve 5 of the integrated pressure compensator is used for controlling the distribution of the flow of each working oil path after the seamless switching of the main oil path and the auxiliary oil path, the plug-in type flow control valve 5 of the integrated pressure compensator comprises a one-way flow regulating valve 5.1 and a pressure compensator 5.2, required different flow values can be obtained by regulating a regulating screw 5.1.1 of the one-way flow regulating valve 5.1, and the pressure compensator 5.2 is used for ensuring that the obtained flow is only related to the opening degree of a valve core of the one-way flow regulating valve 5.1 and has no relation with the pressure drop of an oil inlet and an oil outlet of the one-way flow regulating valve 5.1 so as to ensure the stable output of the regulated flow; an oil outlet channel II and an oil outlet channel III are respectively arranged after passing through a pressure compensator 5.2, the oil outlet channel II is communicated with an oil inlet II of the plug-in type one-way valve 4, and oil can pass through the oil inlet II and the oil outlet I of the plug-in type one-way valve 4 to an A1 port arranged on the valve block 1 so as to realize the stepless speed regulation function when the execution elements of the main working oil way need different flow rates; the oil outlet channel (c) is communicated with an A2 port arranged on the valve block 1 to ensure the flow required by the action of an execution element of the auxiliary working oil path.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" or "an" and the like in the description and in the claims of this application do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

Exemplary embodiments of the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various changes and modifications may be made to the specific embodiments described above, and various combinations of the technical features and structures proposed by the present invention may be made without departing from the concept of the present invention.

Claims (4)

1. The utility model provides an integrated valves that possesses oil circuit switching adjustable speed, it includes the valve block, its characterized in that: install overflow valve, check valve, two three way solenoid valve, flow control valve on the valve block, be provided with pressure oil's main oil inlet P, main oil return port T and pressure monitoring mouth M on the valve block lateral wall, main oil inlet P communicates with the oil inlet and the pressure monitoring mouth M of two three way solenoid valve, overflow valve respectively, and the oil-out and the main oil return port T intercommunication of overflow valve, pressure monitoring mouth M have the manometer through the pipe connection, two three way solenoid valve's oil-out all the way with the A1 mouth intercommunication on the valve block, another way behind the flow control valve respectively with the valve block on A1 mouth and A2 mouth intercommunication.

2. The integrated valve group with oil circuit switching speed regulation of claim 1, wherein: the flow control valve comprises a one-way flow control valve and a pressure compensator, an oil inlet of the one-way flow control valve is communicated with an oil outlet of the two-position three-way electromagnetic valve, the one-way flow control valve is communicated with an A2 port on the valve block through one way after passing through the pressure compensator, and the other way is communicated with an A1 port on the valve block through the one-way valve.

3. The integrated valve group with oil circuit switching speed regulation of claim 1, wherein: the port A1 of the valve block is connected with an actuating element of a main working oil path, and the port A2 is connected with an actuating element of an auxiliary working oil path.

4. The integrated valve group with oil circuit switching speed regulation of claim 1, wherein: the overflow valve is a direct-acting plug-in type overflow valve, the one-way valve is a plug-in type one-way valve, the two-position three-way electromagnetic valve is a plug-in type two-position three-way electromagnetic valve, and the flow control valve is a plug-in type flow control valve of the integrated pressure compensator.

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