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CN110906011B - Electrohydraulic integrated control valve - Google Patents

Electrohydraulic integrated control valve Download PDF

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Publication number
CN110906011B
CN110906011B CN201911285417.6A CN201911285417A CN110906011B CN 110906011 B CN110906011 B CN 110906011B CN 201911285417 A CN201911285417 A CN 201911285417A CN 110906011 B CN110906011 B CN 110906011B
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CN
China
Prior art keywords
valve
assembly
component
hydraulic
driving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201911285417.6A
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Chinese (zh)
Other versions
CN110906011A (en
Inventor
吴松
曹月秋
石峰
张志国
邵林
路海晋
何胜昌
黎春梅
谭术洋
周宁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anshan Solenoid Valve Co ltd
Original Assignee
Anshan Solenoid Valve Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anshan Solenoid Valve Co ltd filed Critical Anshan Solenoid Valve Co ltd
Priority to CN201911285417.6A priority Critical patent/CN110906011B/en
Publication of CN110906011A publication Critical patent/CN110906011A/en
Application granted granted Critical
Publication of CN110906011B publication Critical patent/CN110906011B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/124—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston servo actuated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

The application relates to the technical field of valves, in particular to an electrohydraulic integrated control valve, which comprises a valve component, a reset component and a driving component; the driving end of the driving component is connected with a hand wheel of the valve component, and the other end of the driving component is contacted with the reset component; when the driving component is started, the driving component moves along a first direction and presses the reset component so as to drive the handle mechanism of the valve component to rotate along a second direction, so that the first flow passage and the second flow passage of the valve component are controlled to be opened and closed; when the driving assembly stops working, the reset assembly resets and drives the driving assembly to move along a third direction so as to drive the handle mechanism of the valve assembly to rotate along a fourth direction, so that the first flow passage and the second flow passage of the valve assembly are controlled to be closed and opened. According to the application, the valve clack on the valve assembly is driven by the driving assembly to act, so that the first flow passage of the valve assembly is controlled to be opened and the second flow passage is controlled to be closed or the second flow passage is controlled to be opened and the first flow passage is controlled to be closed, and the regulation and control are more accurate.

Description

Electrohydraulic integrated control valve
Technical Field
The application relates to the technical field of valves, in particular to an electrohydraulic integrated control valve.
Background
The control valve is the most common control valve on a modern chemical process pipeline and is used for controlling the flow direction and on-off of liquid on the pipeline.
Most of the existing control valves are provided with auxiliary operation mechanisms for assisting in controlling the on-off of the pipeline and the flow direction of liquid in the pipeline, however, the auxiliary operation mechanisms are generally manually operated, so that the operation efficiency is low, and the requirements of modern processes cannot be met.
Disclosure of Invention
The application aims to provide an electrohydraulic integrated control valve, which improves the operation efficiency of an auxiliary operation mechanism of the control valve to a certain extent.
The application provides an electrohydraulic integrated control valve, which comprises a valve component, a reset component and a driving component, wherein the valve component is connected with the reset component;
The driving end of the driving assembly is connected with the hand wheel of the valve assembly, and the other end of the driving assembly can be contacted with the reset assembly;
When the driving component starts to work, the driving component can move along a first direction and press the reset component to deform so as to drive the handle mechanism of the valve component to rotate along a second direction, so that the valve clack in the valve component acts to control the first flow passage and the second flow passage of the valve component to be opened and closed;
When the driving assembly stops working, the reset assembly resets and drives the driving assembly to move along a third direction so as to drive the handle mechanism of the valve assembly to rotate along a fourth direction, so that the valve clack in the valve assembly acts again to control the first flow passage and the second flow passage of the valve assembly to be closed.
In the above technical solution, further, the valve assembly includes a valve body, a valve rod, a hand wheel, an elastic member, a valve rod nut, a valve clack, an upper valve seat, a lower valve seat, the handle mechanism and the valve clack;
A cavity is formed in the valve body, the valve rod is positioned in the cavity, the valve rod nut is connected to the valve rod in a threaded mode, and the elastic piece is sleeved on the valve rod and is abutted between the valve body and the valve rod nut; a gap is formed between the valve rod nut and the valve body;
The hand wheel is positioned outside the valve body, one end of the valve rod is connected with the hand wheel, and the other end of the valve rod is connected with the valve clack; the rotation of the hand wheel can drive the valve rod to move along the first direction so that the valve clack contacts with the upper valve seat to open the first flow passage, and the second flow passage is closed, or the rotation of the hand wheel can drive the valve rod to move along the third direction so that the valve clack contacts with the lower valve seat to close the first flow passage and open the second flow passage;
The handle mechanism comprises a handle and a rotating shaft which rotates synchronously with the handle, and the handle is connected with the driving end; the part of the rotating shaft is arranged in a variable diameter mode; the diameter-changing part of the rotating shaft is positioned in the gap, so that the rotation of the rotating shaft can drive the valve rod nut and the valve rod to move along a first direction or a third direction.
In the above technical solution, further, the rotating shaft includes an abutting portion and a clamping portion, and two ends of the abutting portion are provided with the clamping portion;
An installation cavity is formed between the abutting part and the clamping part, and the installation cavity is used for accommodating the valve rod nut;
When the hand wheel is rotated clockwise, the valve clack is contacted with the upper valve seat, and the handle drives the rotating shaft to rotate so that the abutting part is contacted with the valve rod nut;
When the hand wheel is rotated anticlockwise, the valve clack is in contact with the lower valve seat, and the handle drives the rotating shaft to rotate, so that the mounting cavity is in contact with the valve rod nut.
In the above technical solution, further, the driving assembly includes a power member and a hydraulic member;
The hydraulic component comprises a hydraulic cylinder and a piston component arranged in a cylinder body of the hydraulic cylinder; one end of the piston member forms the driving end;
the power member is in communication with the hydraulic member for providing hydraulic power to the hydraulic member.
In the above technical solution, further, the power component includes a motor, a gear pump, and an oil tank;
the output shaft of the motor is connected with the gear pump, and the gear pump is respectively communicated with the oil tank and the cylinder body of the hydraulic cylinder, so that hydraulic oil is input into the cylinder body of the hydraulic cylinder to enable the piston member to move in the first direction or hydraulic oil in the cylinder body of the hydraulic cylinder is discharged to enable the piston member to move in the third direction.
In the above technical solution, further, the piston member includes a piston, a piston rod, and a trigger;
The piston rod is arranged on one side of the piston, the driving end is formed on the piston rod, and the trigger piece is arranged on the other side of the piston and faces the reset assembly.
In the above technical solution, further, the reset assembly is located in a cylinder body of the hydraulic cylinder, and the reset assembly includes a spring, an end cover, and an inductive switch disposed on the end cover;
In the process of moving the piston rod along the first direction, the trigger piece can trigger the inductive switch to stop the motor.
In the above technical solution, further, the power member further includes a check valve, and the check valve is disposed between the oil tank and the hydraulic cylinder, so that hydraulic oil in the oil tank flows into the cylinder body of the hydraulic cylinder in a unidirectional manner.
In the above technical scheme, further, the driving assembly further comprises a three-way valve, wherein one end of the three-way valve is a closed end, one end of the three-way valve is communicated with the oil tank, and the other end of the three-way valve is communicated with the cylinder body of the hydraulic cylinder;
When the motor stops driving, the three-way valve is communicated with the oil tank and the cylinder body of the hydraulic cylinder; when the motor is driven, the three-way valve is communicated with the closed end and the oil tank or the cylinder body of the hydraulic cylinder.
In the above technical scheme, the valve further comprises a bracket, one end of the bracket is fixed on the valve assembly, the other end of the bracket is fixedly arranged on the driving assembly, and the bracket is used for connecting the valve assembly and the driving assembly.
Compared with the prior art, the application has the beneficial effects that:
the application provides an electrohydraulic integrated control valve, which comprises a valve assembly, a reset assembly and a driving assembly, wherein the valve assembly is connected with the reset assembly; the driving end of the driving assembly is connected with the hand wheel of the valve assembly, and the other end of the driving assembly can be contacted with the reset assembly;
Specifically, the valve clack on the valve assembly is driven to act by the driving assembly, so that the first flow passage of the valve assembly is controlled to be opened, the second flow passage of the valve assembly is controlled to be closed, or the second flow passage of the valve assembly is controlled to be opened and the first flow passage of the valve assembly is controlled to be closed, automatic control is realized, and compared with a manual regulation control valve in the prior art, the valve is more accurate in regulation and control and higher in efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural diagram of an electrohydraulic integrated control valve provided by an embodiment of the application;
FIG. 2 is a side view of an electro-hydraulic integrated control valve provided by an embodiment of the present application;
FIG. 3 is a top view of an electro-hydraulic integrated control valve provided by an embodiment of the present application;
FIG. 4 is a cross-sectional view of a valve assembly of an electro-hydraulic integrated control valve provided in an embodiment of the present application;
FIG. 5 is a cross-sectional view of a drive assembly and reset assembly of an electro-hydraulic integrated control valve according to an embodiment of the present application;
fig. 6 is a cross-sectional view of a rotary shaft of an electrohydraulic integrated control valve provided by an embodiment of the application.
In the figure:
1-a valve assembly; 101-a valve clack; 103-valve stem; 104-a hand wheel; 105-an elastic member; 106-a valve stem nut; 107-upper valve seat; 108-a lower valve seat; 109-handle; 110-a rotating shaft; 111-abutment; 112-a clamping part;
2-resetting the component; 201-a spring; 202-end caps;
3-a drive assembly; 301-an electric motor; 302-a gear pump; 303-an oil tank; 304-a bracket.
Detailed Description
The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the application are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
The present application is further explained below with reference to fig. 1,2, 3, 4,5 and 6, and provides an electrohydraulic integrated control valve, which comprises a valve assembly 1, a reset assembly 2 and a driving assembly 3;
the driving end of the driving component 3 is connected with a hand wheel 104 of the valve component, and the other end of the driving component 3 can be in contact with the reset component 2;
When the driving assembly 3 starts to work, the driving assembly 3 can move along a first direction and press the reset assembly 2 to deform so as to drive the handle mechanism of the valve assembly 1 to rotate along a second direction, so that the valve clack 101 in the valve assembly 1 acts to control the first flow passage of the valve assembly 1 to be opened and the second flow passage to be closed;
When the driving assembly 3 stops working, the reset assembly 2 resets and drives the driving assembly 3 to move along a third direction so as to drive the handle mechanism of the valve assembly 1 to rotate along a fourth direction, so that the valve clack 101 in the valve assembly 1 acts again to control the first flow passage and the second flow passage of the valve assembly 1 to be closed and opened.
According to the application, the valve clack 101 on the valve component 1 is driven to act by the driving component 3, so that the first flow channel opening, the second flow channel closing or the second flow channel opening and the first flow channel closing of the valve component 1 are controlled, the automatic control is realized, and compared with the manual regulation and control in the prior art, the regulation and control are more accurate, and the efficiency is higher.
For convenience of description of the present application, according to the actual use situation of the control valve, the electro-hydraulic integrated control valve is vertically disposed, that is, the valve assembly 1 and the driving assembly 3 in the present application are vertically disposed, so that the first direction in the present application is a vertically downward direction, the third direction is a vertically upward direction, the second direction is a horizontal clockwise rotation direction, and the fourth direction is a horizontal counterclockwise rotation direction (the specified directions are also applicable to the following embodiments).
In this embodiment, as shown in connection with fig. 4, the valve assembly 1 comprises a valve body, a valve stem 103, a hand wheel 104, an elastic member 105, a valve stem nut 106, a valve flap 101, an upper valve seat 107, a lower valve seat 108, the handle mechanism and the valve flap 101;
A cavity is formed in the valve body, the valve rod 103 is positioned in the cavity, the valve rod nut 106 is in threaded connection with the valve rod 103, and the elastic piece 105 is sleeved on the valve rod 103 and is abutted between the valve body and the valve rod nut 106; a gap is formed between the valve stem nut 106 and the valve body;
The hand wheel 104 is positioned outside the valve body, one end of the valve rod 103 is connected with the hand wheel 104, and the other end of the valve rod 103 is connected with the valve clack 101; the rotation of the hand wheel 104 can drive the valve rod 103 to move along the first direction so that the valve clack 101 contacts with the lower valve seat 108 to open the second flow passage, close the first flow passage, or the rotation of the hand wheel 104 can drive the valve rod 103 to move along the third direction so that the valve clack 101 contacts with the upper valve seat 107 to close the second flow passage and open the first flow passage;
In this embodiment, as shown in connection with fig. 6, the handle mechanism includes a handle 109 and a rotary shaft 110 that rotates in synchronization with the handle 109, the handle 109 being connected to the drive end; the rotation shaft 110 is rotatable in the second direction when the driving end drives the handle 109 in the first direction, and the rotation shaft 110 is rotatable in the fourth direction when the driving end drives the handle 109 in the third direction.
In this embodiment, as shown in fig. 6, in order to ensure that the spindle 110 can lock the valve stem nut 106 during rotation, the spindle 110 includes an abutment portion 111 and a clamping portion 112, and two ends of the abutment portion 111 are provided with the clamping portion 112; a mounting cavity is formed between the abutting portion 111 and the clamping portion 112, and the mounting cavity can accommodate the valve rod nut 106;
When the hand wheel 104 is rotated clockwise, the valve clack 101 contacts with the upper valve seat 107, and the handle 109 drives the rotating shaft 110 to rotate along the third direction under the action of the reset assembly 2, so that the first end surface of the abutting part 111 contacts with the valve stem nut 106.
When the hand wheel 104 is rotated counterclockwise, the valve clack 101 contacts with the lower valve seat 108, and the handle 109 is driven by the driving assembly 3 to drive the rotating shaft 110 to rotate along the first direction, so that the second end surface of the abutting portion 111 (the first end surface of the abutting portion 111 and the second end surface of the abutting portion 111 are symmetrically arranged about the axis of the abutting portion 111) contacts with the valve stem nut 106, that is, the mounting cavity contacts with the valve stem nut 106.
In this embodiment, as shown in connection with fig. 5, the drive assembly 3 comprises a power member and a hydraulic member; the hydraulic component comprises a hydraulic cylinder and a piston component arranged in a cylinder body of the hydraulic cylinder; one end of the piston member forms the driving end.
The power member is in communication with the hydraulic member for providing hydraulic power to the hydraulic member, in particular, the hydraulic member is movable in the first direction when the power member is activated.
In this embodiment, as shown in connection with fig. 5, the power means comprises a motor 301, a gear pump 302 and a fuel tank 303; the output shaft of the motor 301 is connected to the gear pump 302, and the gear pump 302 is respectively connected to the oil tank 303 and the cylinder body of the hydraulic cylinder, so that hydraulic oil is input into the cylinder body of the hydraulic cylinder to move the piston member in the first direction or hydraulic oil in the cylinder body of the hydraulic cylinder is discharged to move the piston member in the third direction.
Specifically, the gear pump 302 is a rotary pump that delivers or pressurizes hydraulic oil in dependence on the change and movement of working volume formed between the pump cylinder and the meshing gears. More specifically, the gear pump 302 is composed of two gears, a pump body and front and rear covers to form two closed spaces, when the gears rotate, the volume of the space on the gear disengaging side is changed from small to large, vacuum is formed, hydraulic oil is sucked in, the volume of the space on the gear engaging side is changed from large to small, and hydraulic oil is squeezed into the cylinder body of the hydraulic cylinder.
In this embodiment, as shown in connection with fig. 5, the piston member comprises a piston, a piston rod and a trigger; the piston rod is arranged on one side of the piston, the driving end is formed on the piston rod, and the trigger piece is arranged on the other side of the piston and faces the reset assembly 2.
Specifically, a driving end is formed on the piston rod and is connected with a handle 109 on the valve assembly 1, when the reset assembly 2 resets and drives the piston rod to move along the second direction, the driving end on the piston rod drives the handle 109 to rotate along the fourth direction, and then drives a rotating shaft 110 to rotate along the fourth direction; when the motor 301 is started, the piston rod is driven to move along the first direction, and the driving end on the piston rod drives the handle 109 to rotate along the third direction, so as to drive the rotating shaft 110 to rotate along the third direction.
In this embodiment, as shown in fig. 5, the reset assembly 2 is located in the cylinder body of the hydraulic cylinder, and the reset assembly 2 includes a spring 201, an end cover 202, and a sensing switch disposed on the end cover 202; the spring 201 is connected with the piston assembly, specifically, when the motor 301 stops moving, the spring 201 is reset to drive the piston assembly to move along the second direction, and when the motor 301 works, the movable assembly moves along the first direction to compress the spring 201.
When the trigger piece triggers the inductive switch during the movement of the piston rod along the first direction, the motor 301 stops working, and the motor 301 stops moving, namely hydraulic oil stops flowing into the cylinder body of the hydraulic cylinder from the oil tank 303.
In this embodiment, in order to ensure that the hydraulic oil can flow in one direction from the oil tank 303 into the cylinder body of the hydraulic cylinder when the motor 301 is turned on, the power member further includes a check valve disposed between the oil tank 303 and the hydraulic cylinder so that the hydraulic oil in the oil tank 303 flows in one direction into the cylinder body of the hydraulic cylinder.
Specifically, the one-way valve means that the liquid can only flow along the inlet, but the outlet medium cannot flow back, and is also called a check valve or a check valve.
In this embodiment, in order to ensure that hydraulic oil can flow from the cylinder body of the hydraulic cylinder into the oil tank 303 when the motor 301 stops driving, hydraulic oil can flow from the oil tank 303 into the cylinder body of the hydraulic cylinder when the motor 301 is turned on; the power component further comprises a three-way valve, one end of the three-way valve is a closed end, one end of the three-way valve is communicated with the oil tank 303, and the other end of the three-way valve is communicated with the cylinder body of the hydraulic cylinder.
When the motor 301 stops driving, one end of the three-way valve is communicated with the oil tank 303, the other end of the three-way valve is communicated with the cylinder body of the hydraulic cylinder, the spring 201 on the reset piece is reset, a piston member in the cylinder body of the hydraulic cylinder is driven to move along the second direction, and when the piston member moves along the second direction, hydraulic oil in the cylinder body of the hydraulic cylinder is compressed, so that the hydraulic oil can flow into the oil tank 303 from the cylinder body of the hydraulic cylinder.
When the motor 301 is driven, the closed end of the three-way valve closes the pipeline from the hydraulic oil flowing from the cylinder body of the hydraulic cylinder to the oil tank 303, and opens the pipeline from the hydraulic oil flowing from the oil tank 303 to the cylinder body of the hydraulic cylinder, the motor 301 is driven to drive the gear pump 302 to work, the gear pump 302 can absorb the hydraulic oil in the oil tank 303 into the cylinder body of the hydraulic cylinder, and the piston rod on the piston member can move along the first direction under the extrusion of the hydraulic oil.
In this embodiment, in conjunction with fig. 1, in order to ensure stability between the valve assembly 1 and the driving assembly 3, the present application further includes a bracket 304, one end of the bracket 304 is fixed on the valve assembly, the other end of the bracket 304 is fixedly disposed on the driving assembly 3, and the bracket 304 is used for connecting the valve assembly with the driving assembly 3.
Specifically, one end of the bracket 304 is preferably connected to the valve assembly by a bolt connection, and the other end of the bracket 304 is preferably connected to the valve body by a bolt connection.
The operation process of the application in the practical application process is as follows:
Firstly, the hand wheel 104 is rotated anticlockwise in the vertical direction, when the hand wheel 104 is rotated, the valve rod 103 is driven to move in a first direction (vertically move downwards), the valve clack 101 is contacted with the upper valve seat 107, at the moment, the first flow passage of the valve assembly 1 is closed, the second flow passage is opened, at the same time, in order to ensure that the valve clack 101 can be always contacted with the upper valve seat 107, at the moment, the motor 301 stops driving, the spring 201 is reset, the piston member is driven to move in a second direction (vertically move upwards), during the upward movement of the piston member, the driving end on the piston member drives the handle 109 to rotate in a fourth direction, and then the rotating shaft 110 is driven to rotate in the fourth direction, at the moment, the second end face of the abutting part 111 of the rotating shaft 110 is contacted with the valve rod nut 106, at the moment, the mounting cavity is contacted with the valve rod nut 106, at the moment, the valve rod nut 106 is locked in the mounting cavity by the rotating shaft 110, and the flow direction of hydraulic oil at the moment is: flows into the oil tank 303 from the cylinder body of the hydraulic cylinder.
When the first flow passage and the second flow passage of the valve assembly 1 need to be opened and closed (three flow passage through holes are formed on the valve body of the application, namely, the first flow passage through hole, the second flow passage through hole and the third flow passage through hole respectively), wherein the first flow passage through hole is communicated with the second flow passage through hole, the second flow passage through hole is communicated with the third flow passage through hole, the motor 301 is started, the rotation of the motor 301 drives the gear pump 302 to rotate, so that hydraulic oil can be sucked from the oil tank 303 and conveyed into the cylinder body of the hydraulic cylinder, the hydraulic oil in the cylinder body of the hydraulic cylinder drives the piston member to move in a first direction (vertically upwards), the driving end of the piston member drives the handle to rotate in the second direction, the rotating shaft 110 is driven to rotate in the second direction, the first end face of the abutting part 111 is contacted with the valve rod nut 106, the valve rod 106 moves downwards, the elastic piece 105 resets, and the valve rod 103 moves downwards, so that the valve clack 101 is contacted with the lower valve seat 108, namely, the second flow passage of the valve assembly 1 is opened and the second flow passage of the valve clack is closed.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application. Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments.

Claims (7)

1. An electrohydraulic integrated control valve is characterized by comprising a valve component, a reset component and a driving component;
the driving end of the driving assembly is connected with the handle mechanism of the valve assembly, and the other end of the driving assembly can be in contact with the reset assembly;
When the driving component is started, the driving component moves along a first direction and presses the reset component to deform so as to drive the handle mechanism of the valve component to rotate along a second direction, so that a valve clack in the valve component acts to control the first flow passage and the second flow passage of the valve component to be opened and closed;
When the driving assembly stops working, the reset assembly resets and drives the driving assembly to move along a third direction so as to drive the handle mechanism of the valve assembly to rotate along a fourth direction, so that the valve clack in the valve assembly acts again to control the first flow passage and the second flow passage of the valve assembly to be closed;
the valve assembly comprises a valve body, a valve rod, a hand wheel, an elastic piece, a valve rod nut, a valve clack, an upper valve seat, a lower valve seat, the handle mechanism and the valve clack;
A cavity is formed in the valve body, the valve rod is positioned in the cavity, the valve rod nut is connected to the valve rod in a threaded mode, and the elastic piece is sleeved on the valve rod and is abutted between the valve body and the valve rod nut; a gap is formed between the valve rod nut and the valve body;
The hand wheel is positioned outside the valve body, one end of the valve rod is connected with the hand wheel, and the other end of the valve rod is connected with the valve clack; the hand wheel rotates to drive the valve rod to move along the first direction, so that the valve clack contacts with the lower valve seat to open the first flow passage and close the second flow passage; or the hand wheel rotates to drive the valve rod to move along the third direction, so that the valve clack contacts with the upper valve seat to close the first flow passage and open the second flow passage;
The handle mechanism comprises a handle and a rotating shaft which rotates synchronously with the handle, and the handle is connected with the driving end;
The drive assembly includes a power member and a hydraulic member;
the hydraulic component comprises a hydraulic cylinder and a piston component arranged in a cylinder body of the hydraulic cylinder; one end of the piston member is formed with the driving end;
The power component is communicated with the hydraulic component and is used for providing hydraulic power for the hydraulic component;
The rotating shaft comprises an abutting part and a clamping part, and clamping parts are arranged at two ends of the abutting part; an installation cavity is formed between the abutting part and the clamping part, and the installation cavity can accommodate the valve rod nut;
When the hand wheel is rotated clockwise, the valve clack is contacted with the upper valve seat, and the handle drives the rotating shaft to rotate along the fourth direction under the action of the reset component, so that the first end face of the abutting part is contacted with the valve rod nut;
When the hand wheel is rotated anticlockwise, the valve clack is in contact with the lower valve seat, the handle is driven by the driving assembly to drive the rotating shaft to rotate along the second direction, so that the second end face of the abutting portion is in contact with the valve rod nut, and the first end face of the abutting portion and the second end face of the abutting portion are symmetrically arranged relative to the axis of the abutting portion, and at the moment, the mounting cavity is in contact with the valve rod nut.
2. The electro-hydraulic integrated control valve of claim 1, wherein the power member comprises a motor, a gear pump, and an oil tank;
The output shaft of the motor is connected with the gear pump, and the gear pump is respectively communicated with the oil tank and the cylinder body of the hydraulic cylinder, so that hydraulic oil is input into the cylinder body of the hydraulic cylinder to enable the piston member to move in the first direction, or hydraulic oil in the cylinder body of the hydraulic cylinder is discharged to enable the piston member to move in the third direction.
3. The electro-hydraulic integrated control valve of claim 2, wherein the piston member comprises a piston, a piston rod, and a trigger;
the piston rod is arranged at one side of the piston and is provided with the
The driving end is provided with the trigger piece which is arranged on the other side of the piston and faces the reset assembly.
4. The electro-hydraulic integrated control valve of claim 3, wherein the reset assembly is located within a body of the hydraulic cylinder and the reset assembly comprises a spring, an end cap, and a sense switch disposed on the end cap;
and in the process of moving the piston rod along the first direction, the trigger piece can trigger the inductive switch so as to stop the motor.
5. The electro-hydraulic integrated control valve of claim 4, wherein the power member further comprises a one-way valve disposed between the oil tank and the hydraulic cylinder to facilitate one-way flow of hydraulic oil within the oil tank into a cylinder body of the hydraulic cylinder.
6. The electro-hydraulic integrated control valve of claim 5, wherein the power member further comprises a three-way valve having one end closed, one end in communication with the oil tank, and the other end in communication with the cylinder body of the hydraulic cylinder;
when the motor stops driving, the three-way valve is communicated with the oil tank and the cylinder body of the hydraulic cylinder; when the motor is driven, the closed end of the three-way valve is used for disconnecting a pipeline connecting the oil tank and the cylinder body of the hydraulic cylinder.
7. The electro-hydraulic integrated control valve of claim 5, further comprising a bracket, one end of the bracket being secured to the valve body, the other end of the bracket being secured to the drive assembly, the bracket being configured to connect the valve body to the drive assembly.
CN201911285417.6A 2019-12-13 2019-12-13 Electrohydraulic integrated control valve Active CN110906011B (en)

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