CN206786099U - A kind of electronic directional control valve and the electronic direction controlling valve group being made from it - Google Patents
A kind of electronic directional control valve and the electronic direction controlling valve group being made from it Download PDFInfo
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- CN206786099U CN206786099U CN201720614652.3U CN201720614652U CN206786099U CN 206786099 U CN206786099 U CN 206786099U CN 201720614652 U CN201720614652 U CN 201720614652U CN 206786099 U CN206786099 U CN 206786099U
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- valve
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- push rod
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Abstract
The utility model discloses a kind of electronic directional control valve, including the interior valve body for setting cavity, the cavity includes two chambers communicated respectively with valve body top connection, interface sets taper valve core to form taper valve port between two chambers, a cover plate is each provided with the both ends of valve body to close above-mentioned cavity, one is each provided with the both ends of taper valve core and passes the push rod that above-mentioned cover plate is in contact with valve body external environment medium, the sheathed spring on the push rod adjacent with taper valve core bottom surface, spring force makes taper valve core push against interface to close taper valve port, taper valve port is opened with that by the push rod taper valve core can be promoted to overcome spring force to depart from interface.Electronic directional control valve disclosed in the utility model and the electronic direction controlling valve group being made from it, when the protuberance that camshaft is rotated to its cam does not push against push rod with matching, spring force makes taper valve core push against interface to close taper valve port, taper valve port is lower in off position to have good sealing property, ensures zero leakage.
Description
Technical field
One in the control element field that the utility model belongs in Fluid Transmission and Control system, the more particularly to field
Plant the electronic directional control valve based on cam ejection pin mechanism and the electronic direction controlling valve group being made from it.
Background technology
In Fluid Transmission and Control system, directional control valve is mainly using valve element with respect to valve body, valve pocket or valve seat
Relative position change, connect runner, shut-off or change flow direction, so as to control the start and stop of executive component and commutation etc. dynamic
Make.
By valve mouth structure, directional control valve mainly has hoisting type and side valve type, hoisting type valve port, such as cone valve, bulb valve port
Deng, gapless between sealing surface can be accomplished, runner can be completely cut through, realize zero leakage, possess good sealing property, but can not
Axial static pressure on complete equipilibrium valve element.Side valve type valve port, dummy piston can be passed through（Or it is complete valve pocket）Carry out balance valve core
Upper axial static pressure, but have gap between its sealing surface, it is impossible to runner is completely cut through, leakage be present.
In valve element type of drive, one kind be under spring power cooperation, manually, machinery, electromagnet or gas/liquid
The modes such as pressure, realize the change of spool position；Another kind of is to be engaged by electromagnet with Fluid pressure and spring force, is realized
The change of spool position, reach the break-make of control runner or the purpose of switching.The valve of both modes does not possess state memorization
With keeping function, original state can be reset under spring force effect after input power removes.
First patent document CN203963221U, CN101512202A, CN102483180A, US6959728B2,
CN2282627Y discloses the technical scheme for being applied to control valve using cam ejection pin mechanism as transmission mechanism, although these schemes
Taper valve port is all used, can guarantee that good seal performance, but all without axial static pressure balanced measure.In high pressure and two-way operation
（Inlet and outlet are exchanged）Under the conditions of, valve element axial direction static pressure is big, and the input power changed needed for spool position is big, and power consumption is big；Secondly,
After input power removes, the holding of valve element state, i.e. stateless holding and memory function can not be realized；Again, working environment
Condition（Such as environmental pressure）Change it is big to the performance impact of valve, keep requiring that harsh application is led to energy consumption, state at some
Domain, such as deep-sea, space, existing directional control valve obviously can not meet to require.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of electronic direction control based on cam ejection pin mechanism
Valve processed and the electronic direction controlling valve group being made from it.
The utility model adopts the following technical scheme that：
A kind of electronic directional control valve, including the interior valve body for setting cavity, the cavity include two respectively with being connect on valve body
The chamber that head communicates, interface sets taper valve core respectively to be set at the both ends of valve body so as to form taper valve port between two chambers
A cover plate is equipped with to close above-mentioned cavity, it is theed improvement is that：One is each provided with the both ends of taper valve core to pass
The push rod that above-mentioned cover plate is in contact with valve body external environment medium, with dynamic seal phase between two push rod and valve body cavity inwall
Even, and the diameter length of the two push rods cross section is equal with the diameter length of interface cross section, with taper valve core bottom surface phase
The bottom surface of sheathed spring on adjacent push rod, the spring one end and taper valve core abuts against, and the other end abuts against with valve body, spring bullet
Power makes taper valve core push against interface to close taper valve port, and the push rod adjacent with the taper valve core conical surface is stretched out after cover plate with being arranged on
Cam on camshaft is engaged, and above-mentioned camshaft is arranged on valve body, is supported in the protuberance that camshaft is rotated to its cam
During tight push rod with matching, by the push rod taper valve core can be promoted to overcome spring force to make cone valve to depart from interface
Mouth is opened.
Further, described camshaft is driven by the driving link on valve body.
Further, described driving link is motor or steering wheel.
Further, the rear and front end of camshaft is respectively connected by a rolling bearing being arranged on valve body with valve body
Connect.
Further, the near angle of repose of the cam is more than 0 °, and far angle of repose is more than or equal to 0 °.
A kind of electronic direction controlling valve group, using above-mentioned electronic directional control valve, it is theed improvement is that：The control
The quantity of valve is more than 2, and each control valve shares a camshaft, sets the cam of more than 1 on the surface of camshaft, each
Cam is engaged with the control valve of more than 1.
Further, when the quantity of cam is more than 2, each cam is distributed on the different side faces of camshaft.
The beneficial effects of the utility model are：
Electronic directional control valve disclosed in the utility model and the electronic direction controlling valve group being made from it, in camshaft
When rotation to the protuberance of its cam does not push against push rod with matching, spring force makes taper valve core push against interface to close
Taper valve port, taper valve port is lower in off position to have good sealing property, ensures zero leakage；Rotated in camshaft convex to its
When the protuberance of wheel pushes against push rod with matching, by the push rod taper valve core can be promoted to overcome spring force to depart from
Interface opens taper valve port, and the input power for now removing camshaft is allowed to remain stationary as, so that it may so that cone valve mouth is kept
Opening, realize the holding and memory of state.
Electronic directional control valve disclosed in the utility model and the electronic direction controlling valve group being made from it, pass through cam
The cooperation of axle and spring, control valve is not consumed energy under the closing of taper valve port and opening, realize the self-sustaining of state, it is convex
Wheel shaft rotate to an angle i.e. can be achieved cone valve mouth between closing and unlatching state switching.Due to the far angle of repose of cam
More than or equal to 0 °, make external force suffered by cam（Size is spring force and hydraulic power sum）All the time cam center is pointed to, even if by
Interference, it can also remain that taper valve port is opened.
After liquid medium flows into chamber by joint, due to the diameter length and interface cross section of two push rod cross sections
Diameter length is equal, and liquid medium in same chamber can be made to act on the axial static pressure of taper valve core and cancelled out each other, so existed
Even if pressure difference be present between the liquid medium of two chambers under taper valve port closed mode, as long as camshaft, which does not rotate, would not make taper
Valve port is opened, and ensures zero leakage.Two push rods pass cover plate simultaneously and the valve body external environment medium cross-sectional area being in contact is also equal,
Therefore even if environmental pressure be present（Such as deep-sea water depth pressure）, it is also with joint efforts zero that environmental pressure, which is acted on taper valve core, to cone
The movement of shape valve element is almost without influence.Cam on camshaft only needs to overcome spring force, frictional force and hydraulic power just to make
Taper valve port is opened, and required driving force and power are smaller.
Brief description of the drawings
Fig. 1 be electronic directional control valve disclosed in the utility model embodiment 1 under taper valve port closed mode in
Portion's structural representation；
Fig. 2 be electronic directional control valve disclosed in the utility model embodiment 1 under taper valve port opening in
Portion's structural representation；
Fig. 3 is the structural representation of the electronic directional control valve convexity wheel shaft disclosed in the utility model embodiment 1；
Fig. 3 A are the section geometric locus figures of electronic directional control valve cam disclosed in the utility model embodiment 1；
Fig. 4 is the principle schematic of single cam list push rod bi-bit bi-pass reversal valve disclosed in the utility model embodiment 1；
Fig. 5 is the principle schematic of single cam double-pole two position three way directional control valve disclosed in the utility model embodiment 1；
Fig. 6 is the principle schematic of double cam double-pole two position three way directional control valve disclosed in the utility model embodiment 1；
Fig. 7 is the principle schematic of double cam double-pole two-position four way change valve disclosed in the utility model embodiment 1.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
Embodiment 1, present embodiment discloses a kind of electronic directional control valve, the control valve belongs to bi-bit bi-pass reversal valve,
Including the interior valve body 1 for setting cavity, the cavity includes two chambers 3 communicated respectively with the top connection 2 of valve body 1, two chambers it
Taper valve core 4 is set to be each provided with a cover plate 5 at the both ends of valve body so as to form taper valve port with closing at interface 31
The cavity stated, one is each provided with the both ends of taper valve core 4 and passes the top that above-mentioned cover plate 5 is in contact with valve body external environment medium
Bar 6, it is connected between two push rod 6 and the cavity inwall of valve body 1 with dynamic seal 7, and the diameter length of the cross section of two push rod 6
It is equal with the diameter length of the cross section of interface 31, the sheathed spring 8 on the push rod 6 adjacent with the bottom surface of taper valve core 4, the spring one
The bottom surface with taper valve core is held to abut against, the other end abuts against with valve body, as shown in figure 1, spring force pushes against taper valve core
For interface to close taper valve port, the push rod adjacent with the taper valve core conical surface stretches out the cam after cover plate and on camshaft 9
91 are engaged, and above-mentioned camshaft is arranged on valve body, as shown in Fig. 2 being rotated in camshaft to the protuberance abutting of its cam
During push rod with matching, by the push rod taper valve core can be promoted to overcome spring force makes taper valve port to depart from interface
Open.
Alternatively, in the present embodiment, structural representation such as Fig. 3 institutes of described camshaft 9
Show, the camshaft is driven by the driving link 10 on valve body 1.Described driving link is motor or steering wheel.Before camshaft 9
Both ends are respectively connected by a rolling bearing 11 being arranged on valve body 1 with valve body afterwards.The near angle of repose of the cam is more than
0 °, far angle of repose is more than or equal to 0 °.Specifically, as shown in Figure 3A, cam 91 is by the circle that closely stops for the section geometric locus of cam
Arc 91A, 2 sections of symmetrical easement curve 91B and the remote circular arc 91C compositions that stop, and the remote circular arc 91C radiuses that stop are more than the nearly circular arc that stops
91A radiuses.
The course of work of electronic directional control valve disclosed in the present embodiment is：
When needing to open taper valve port, start driving link and drive camshaft to rotate a certain angle（Such as rotation counterclockwise
Turn 180 °）After stop, the protuberance of cam is pushed against push rod with matching, then promote taper valve core to overcome by the push rod
Spring force opens taper valve port to depart from interface, and now closing driving link remains stationary as camshaft, so that it may so that taper
Valve port is kept it turned on, and realizes state self-sustaining of not consuming energy.After taper valve port is opened, two chambers are connected, and liquid medium can
To be flowed into from a joint on valve body, the outflow of another joint.
When needing to close taper valve port, start driving link and drive camshaft to rotate a certain angle（Such as dextrorotation
Turn 180 °）After stop, the protuberance of cam is not pushed against push rod with matching, spring force can push against taper valve core
Interface is to close taper valve port, and now closing driving link remains stationary as camshaft, so that it may so that cone valve mouth remains turned-off shape
State, and realize state self-sustaining of not consuming energy.After taper valve port is closed, two chambers are separated by taper valve core, and liquid medium can only be from
Joint on valve body flows into the chamber communicated therewith, and can not be flowed out from the joint of another on valve body.
When taper valve port is closed, liquid medium can be separately flowed into valve body by taper by two joints on valve body
In the two chambers that valve element separates, because the diameter length of two push rod cross sections is equal with the diameter length of interface cross section,
Liquid medium in same chamber can be made to cancel out each other the axial static pressure of taper valve core, i.e., with the liquid medium in chamber to cone
The effective active area of shape valve element is zero, so no matter the pressure of liquid medium have it is much, or between the liquid medium of two chambers
With the presence or absence of pressure difference, it would not open taper valve port as long as camshaft does not rotate, ensure zero leakage.
The present embodiment also discloses a kind of electronic direction controlling valve group, uses above-mentioned electronic directional control valve, the control
The quantity of valve processed is more than 2, and each control valve shares a camshaft, sets the cam of more than 1 on the surface of camshaft, often
Individual cam is engaged with the control valve of more than 1.
Connected by camshaft, control valve combination in parallel can be from single cam list push rod two two as shown in Figure 4
Logical reversal valve derives single cam double-pole two position three way directional control valve as shown in Figure 5, double cam double-pole two as shown in Figure 6
Position three-way diverter valve and double cam double-pole two-position four way change valve as shown in Figure 7 etc..
Alternatively, in the present embodiment, when the quantity of cam is more than 2, each cam point
Cloth is on the different side faces of camshaft.
Claims (7)
1. a kind of electronic directional control valve, including the interior valve body for setting cavity, the cavity include two respectively with valve body top connection
The chamber communicated, interface sets taper valve core respectively to be set at the both ends of valve body so as to form taper valve port between two chambers
There is a cover plate to close above-mentioned cavity, it is characterised in that：One, which is each provided with, at the both ends of taper valve core passes above-mentioned lid
The push rod that plate is in contact with valve body external environment medium, it is connected between two push rod and valve body cavity inwall with dynamic seal, and
The diameter length of the two push rods cross section is equal with the diameter length of interface cross section, in the push rod adjacent with taper valve core bottom surface
The bottom surface of upper sheathed spring, the spring one end and taper valve core abuts against, and the other end abuts against with valve body, and spring force makes taper
Valve element pushes against interface to close taper valve port, and the push rod adjacent with the taper valve core conical surface is stretched out after cover plate with being arranged on camshaft
Cam be engaged, above-mentioned camshaft is arranged on valve body, and phase therewith is pushed against in the protuberance that camshaft is rotated to its cam
During the push rod of cooperation, by the push rod taper valve core can be promoted to overcome spring force opens taper valve port to depart from interface.
2. electronic directional control valve according to claim 1, it is characterised in that：Described camshaft is by valve body
Driving link driving.
3. electronic directional control valve according to claim 2, it is characterised in that：Described driving link is motor or steering wheel.
4. electronic directional control valve according to claim 1, it is characterised in that：The rear and front end of camshaft respectively passes through one
Rolling bearing on valve body is connected with valve body.
5. electronic directional control valve according to claim 1, it is characterised in that：The near angle of repose of the cam is more than 0 °,
Far angle of repose is more than or equal to 0 °.
6. a kind of electronic direction controlling valve group, the electronic directional control valve described in usage right requirement 1, it is characterised in that：It is described
The quantity of control valve is more than 2, and each control valve shares a camshaft, and the cam of more than 1 is set on the surface of camshaft,
Each cam is engaged with the control valve of more than 1.
7. electronic direction controlling valve group according to claim 6, it is characterised in that：When the quantity of cam is more than 2,
Each cam is distributed on the different side faces of camshaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720614652.3U CN206786099U (en) | 2017-05-31 | 2017-05-31 | A kind of electronic directional control valve and the electronic direction controlling valve group being made from it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720614652.3U CN206786099U (en) | 2017-05-31 | 2017-05-31 | A kind of electronic directional control valve and the electronic direction controlling valve group being made from it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206786099U true CN206786099U (en) | 2017-12-22 |
Family
ID=60714515
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720614652.3U Active CN206786099U (en) | 2017-05-31 | 2017-05-31 | A kind of electronic directional control valve and the electronic direction controlling valve group being made from it |
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| CN (1) | CN206786099U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013731A (en) * | 2017-05-31 | 2017-08-04 | 中国海洋大学 | A kind of electronic directional control valve and the electronic direction controlling valve group being made from it |
| CN112360651A (en) * | 2020-10-22 | 2021-02-12 | 亚普汽车部件股份有限公司 | Electric control valve, fuel system, fuel filling and leakage detection and carbon tank desorption method |
| CN112923077A (en) * | 2021-01-26 | 2021-06-08 | 义乌市吉龙科技有限公司 | Energy-saving durable leakproof valve system |
| CN113931769A (en) * | 2021-10-13 | 2022-01-14 | 亚普汽车部件股份有限公司 | Integrated electric control assembly of fuel system and fuel system control method |
| CN114838185A (en) * | 2021-02-01 | 2022-08-02 | 浙江三花智能控制股份有限公司 | Electric valve |
-
2017
- 2017-05-31 CN CN201720614652.3U patent/CN206786099U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013731A (en) * | 2017-05-31 | 2017-08-04 | 中国海洋大学 | A kind of electronic directional control valve and the electronic direction controlling valve group being made from it |
| CN112360651A (en) * | 2020-10-22 | 2021-02-12 | 亚普汽车部件股份有限公司 | Electric control valve, fuel system, fuel filling and leakage detection and carbon tank desorption method |
| CN112923077A (en) * | 2021-01-26 | 2021-06-08 | 义乌市吉龙科技有限公司 | Energy-saving durable leakproof valve system |
| CN114838185A (en) * | 2021-02-01 | 2022-08-02 | 浙江三花智能控制股份有限公司 | Electric valve |
| CN113931769A (en) * | 2021-10-13 | 2022-01-14 | 亚普汽车部件股份有限公司 | Integrated electric control assembly of fuel system and fuel system control method |
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