CN108533791A - A kind of fluid-link steering mode control valve - Google Patents
A kind of fluid-link steering mode control valve Download PDFInfo
- Publication number
- CN108533791A CN108533791A CN201810736151.1A CN201810736151A CN108533791A CN 108533791 A CN108533791 A CN 108533791A CN 201810736151 A CN201810736151 A CN 201810736151A CN 108533791 A CN108533791 A CN 108533791A
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- Prior art keywords
- flow
- spool
- slot
- electromagnet
- hole
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Classifications
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- 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
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- 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
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/061—Sliding valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention proposes a kind of fluid-link steering mode control valve, including：Valve body, end cap, link block, spool position spool, position solenoid valve, the first electromagnet, the second electromagnet, the first spring, second spring.Fluid-link steering mode control valve according to the ... of the embodiment of the present invention, simple and reasonable, manufacturing cost is low, and the control that reliable safety is carried out to fluid-link steering pattern may be implemented.
Description
Technical field
The present invention relates to a kind of hydraulic valve, a kind of especially fluid-link steering mode control valve.
Background technology
Since hydraulic power steering has, compact-sized, light-weight, small, high sensitivity, stability is good, can absorb
Road shocks and the advantages that without separately setting lubricating arrangement, therefore using as extensive on engineering truck.In order to adapt to various works
Industry operating mode needs in the steering of engineering truck to turn in two-wheeled, four-wheel steering and crab row turn between three kinds of steering patterns
It switches over, combined electromagnetic valve group is usually used for the control of steering pattern switching at present, though existing solenoid valve block
It can so realize the switching to steering pattern, but have the following disadvantages：
(1) existing solenoid valve block is usually used multiple conventional solenoid valves and is equipped with the connection that valve block carries out hydraulic circuit, valve
The volume of block is larger, along with the processing of valve block inner flow passage is complicated, causes overall cost excessively high.
(2) existing solenoid valve block needs the normal time to lead to electromagnet when being switched over to steering pattern
Electrically operated, electromagnet is electrified for a long time fever severity, and especially coil heating temperature is very high in summer, seriously affects electromagnet
Service life, influence the reliability to steering pattern switching control.
(3) design redundancy of existing solenoid valve block is relatively low, and when there is electric fault, steering can be by
It seriously affects, influences the safety turned to.
Invention content
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, an object of the present invention is to provide a kind of simple and reasonable, manufacturing cost is low, may be implemented to liquid
Steering pattern is pressed to carry out the fluid-link steering mode control valve of reliable, safety control.
A kind of fluid-link steering mode control valve according to the ... of the embodiment of the present invention, including：
Valve body, the valve body have the valve opening for penetrating through the valve body in left-right direction, also have the first oil on the valve body
Mouth, the second hydraulic fluid port, third hydraulic fluid port, the 4th hydraulic fluid port and runner have arranged for interval from left to right on the internal perisporium of the valve opening
First through-flow slot, the second through-flow slot, third is through-flow slot, four-way chute and the 5th through-flow slot, first hydraulic fluid port and described the
Threeway chute is connected to, and second hydraulic fluid port is connected to the runner, and the third hydraulic fluid port is connected to the described second through-flow slot, described
4th hydraulic fluid port and the four-way chute, the first end of the runner be connected with the described first through-flow slot and the runner second
End is connected with the 5th through-flow slot；
End cap, the end cap be located on the valve body and have on the right end of the valve opening, the end cap with it is described
The coaxial first through hole of valve opening；
Link block, the link block are located at the right side on the valve body and positioned at the end cap, have on the link block
Second through-hole coaxial with the first through hole；
Spool, the spool include main paragraph and linkage section, and the main paragraph can be movably located in the valve opening,
The linkage section passes through the first through hole and be contained in second through-hole to the right, have in the main paragraph between left and right every
The first cavity and the second cavity of arrangement have on the side wall of the main paragraph the first of the left end for being connected to first cavity logical
Second through flow hole of the right end of discharge orifice and connection first cavity has connection described second on the side wall of the main paragraph
4th through flow hole of the third through flow hole of the left end of cavity and the right end of connection second cavity, the side wall of the main paragraph
Above there is the first flow-conveying groove between first through flow hole and second through flow hole, have on the side wall of the main paragraph
There is the second flow-conveying groove between the third through flow hole and the 4th through flow hole；
Spool is positioned, the positioning spool is fixedly attached in second through-hole on the linkage section, the positioning
On the periphery wall of spool have left locating slot, right locating slot and between the left locating slot and the right locating slot in
Locating slot；
Solenoid valve is positioned, the positioning solenoid valve is located on the link block, and the positioning solenoid valve includes locating cone, institute
Locating cone is stated selectively to match with the left locating slot, the right locating slot and middle locating slot；
First electromagnet, first electromagnet are located on the valve body to close the left end of the valve opening, and described first
The push rod of electromagnet stretches into the right the valve opening and is directed toward the left end of the spool；
Second electromagnet, second electromagnet are located on the link block to close the right end of second through-hole, institute
The push rod for stating the second electromagnet stretches into second through-hole and is directed toward the right end of the spool to the left；
First spring, first spring are socketed on the push rod of first electromagnet, the left end of first spring
Against the right end of first electromagnet and first spring against the left end of the spool；
Second spring, the second spring are socketed on the linkage section, and the left end of the second spring is against the master
The right end of body section and the right end of the second spring are against the end cap；
Wherein, the spool can be switched between first position, the second position and the third place.
Advantageously, when the spool is in the first position, first electromagnet and the equal dead electricity of the second electromagnet,
First electromagnet described in the push rod retraction to the left of first electromagnet, described in the push rod retraction to the right of second electromagnet
Two electromagnet, the elastic force and the elastic force of the second spring of first spring offset each other, the locating cone with it is described in it is fixed
Position slot matches, and the spool makes the described first through-flow slot be connected to first through flow hole, and the spool makes described first to lead to
Chute is disconnected with the described second through-flow slot, and the spool makes the described second through-flow slot be connected to first flow-conveying groove, the valve
Core makes the through-flow slot of the described second through-flow slot and the third disconnect, and the spool makes the through-flow slot of the third respectively with described second
Through flow hole is connected to the third through flow hole, and the spool makes the through-flow slot of the third be disconnected with the four-way chute, described
Spool makes the four-way chute be connected to second flow-conveying groove, and the spool keeps the four-way chute logical with the described 5th
Chute disconnects, and the spool makes the 4th through flow hole described in the 5th through-flow slot be connected to.
Advantageously, when the spool is in the second position, first electromagnet obtains electric and described second electromagnet and loses
The push rod of electricity, first electromagnet stretches out to the right and the elastic force for pushing the spool to overcome the second spring moves right,
Second electromagnet described in the push rod retraction to the right of second electromagnet, the locating cone are matched with left locating slot, the valve
Core makes the described first through-flow slot be disconnected with the described second through-flow slot, and the spool closes first through flow hole, and the spool makes
The second through-flow slot is connected to the through-flow slot of the third by first flow-conveying groove, and the spool makes the through-flow slot of the third
It is connected to respectively with second through flow hole, the spool closes the third through flow hole, and the spool makes the four-way chute
It is connected to by second flow-conveying groove with the 5th through-flow slot, the spool makes the 4th through flow hole described in the 5th through-flow slot
Connection.
Advantageously, when the spool is in the third place, the first electromagnet dead electricity and second electromagnet obtains
Electricity, the first electromagnet described in the push rod retraction to the left of first electromagnet, the push rod of second electromagnet stretch out simultaneously to the left
The elastic force that the spool overcomes first spring is pushed to be moved to the left, the locating cone is matched with right locating slot, the valve
Core makes first through flow hole be connected to the described first through-flow slot, and the spool makes the described first through-flow slot and described second through-flow
Slot is connected to by first flow-conveying groove, and the spool closes second through flow hole, and the spool makes the described second through-flow slot
It is disconnected with the through-flow slot of the third, the spool makes the through-flow slot of the third be connected to the third through flow hole, and the spool makes
The through-flow slot of third is connected to the four-way chute by second flow-conveying groove, and the spool closing the described 4th is through-flow
Hole, the spool make the four-way chute be disconnected with the described 5th through-flow slot.
Advantageously, the positioning solenoid valve further includes：
Flux sleeve, the magnetic conduction are set on the link block；
Coil, the coil are located on the flux sleeve；
Magnetic shield, the magnetic shield is located at the coil and the lower end of the magnetic shield extends downwardly into the flux sleeve；
Armature, the armature can be up or down located in the magnetic shield；
Quiet iron, the quiet iron is located in the coil and the lower end of the quiet iron extends downwardly into the magnetic shield；
Spring, the spring are located in the magnetic shield, and the upper end of the spring is against the quiet iron and the spring
Lower end is against the armature；
Wherein, the upper end of the locating cone is connected with the armature, and the lower end of the locating cone can be stretched into and extract described
Second through-hole.
Advantageously, when the coil obtains electric, the armature overcomes the active force of the spring to move up and drives institute
It states locating cone and extracts the through-hole, when the coil losing electricity, the armature is downward under the action of the restoring force of the spring
It moves and the locating cone is driven to stretch into the through-hole.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
Fig. 1 is the schematic diagram of fluid-link steering mode control valve according to an embodiment of the invention；
Fig. 2 is the schematic diagram of the electromagnetic location valve of fluid-link steering mode control valve according to an embodiment of the invention；
Fig. 3 is the schematic diagram of the spool of fluid-link steering mode control valve according to an embodiment of the invention；
Fig. 4 is the hydraulic schematic diagram of fluid-link steering mode control valve according to an embodiment of the invention；
Fig. 5 is the hydraulic principle of an application scenarios of fluid-link steering mode control valve according to an embodiment of the invention
Figure, at this point, being in two-wheeled steering pattern；
Fig. 6 is the hydraulic principle of the another application scene of fluid-link steering mode control valve according to an embodiment of the invention
Figure, at this point, being in four-wheel steering pattern；
Fig. 7 is the hydraulic principle of the another application scene of fluid-link steering mode control valve according to an embodiment of the invention
Figure, at this point, being in crab row steering pattern.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings it is described in detail fluid-link steering mode control valve according to the ... of the embodiment of the present invention.
As shown in Figures 1 to 7, fluid-link steering mode control valve according to the ... of the embodiment of the present invention, including：Valve body 1, end cap 2,
Link block 3, spool 4 position spool 5, position solenoid valve 6, the first electromagnet 7a, the second electromagnet 7b, the first spring 8a, and second
Spring 8b.
Specifically, valve body 1 has the valve opening for penetrating through valve body 1 in left-right direction, also there is the first hydraulic fluid port P, the on valve body 1
Two hydraulic fluid port T, third hydraulic fluid port A, the 4th hydraulic fluid port B and runner 110.There is arranged for interval from left to right on the internal perisporium of the valve opening
First through-flow slot 101, the second through-flow slot 102, third is through-flow slot 103, four-way chute 104 and the 5th through-flow slot 105.First oil
Mouthful P and third are through-flow, and slot 103 is connected to, and the second hydraulic fluid port T is connected to runner 110, and third hydraulic fluid port A is connected to the second through-flow slot 102, the
Four hydraulic fluid port B and four-way chute 104, the first end of runner 110 be connected with the first through-flow slot 101 and the second end of runner 110 with
5th through-flow slot 105 is connected.
End cap 2 is located at the right end on valve body 1 and positioned at the valve opening, has first coaxial with the valve opening on end cap 2
Through-hole.
Link block 3 is located at the right side on valve body 1 and positioned at end cap 2, has on link block 3 coaxial with the first through hole
Second through-hole.
Spool 4 includes main paragraph and linkage section, and the main paragraph can be movably located in the valve opening, the connection
Section passes through to the right the first through hole and is contained in second through-hole.There is in the main paragraph left and right spaced apart the
One cavity 41 and the second cavity 42 have the first through flow hole of the left end of the first cavity 41 of connection on the side wall of the main paragraph
411 and be connected to the first cavity right end the second through flow hole 412.There is the second cavity 42 of connection on the side wall of the main paragraph
Left end third through flow hole 421 and be connected to the second cavity 42 right end the 4th through flow hole 422.The side wall of the main paragraph
Upper the first flow-conveying groove 410 between the first through flow hole 411 and the second through flow hole 412, on the side wall of the main paragraph
With the second flow-conveying groove 420 between third through flow hole 421 and the 4th through flow hole 422.
Positioning spool 5 is fixedly attached in second through-hole on the linkage section, positions and has on the periphery wall of spool 5
There are left locating slot 501, right locating slot 502 and the middle locating slot 503 between left locating slot 501 and right locating slot 502.
Positioning solenoid valve 6 is located on link block 3, and positioning solenoid valve includes locating cone 67, locating cone 67 selectively with a left side
Locating slot 501, right locating slot 502 and middle locating slot 503 match.
As shown in Fig. 2, positioning solenoid valve 6 further includes：Flux sleeve 61, coil 62, magnetic shield 63, armature 64, quiet iron 66, bullet
Spring 65.
Flux sleeve 61 is located on link block 3.Coil 62 is located on flux sleeve 61.Magnetic shield 63 is located at coil 62 and magnetic shield
63 lower end extends downwardly into flux sleeve 61.Armature 64 can be up or down located in magnetic shield 63.Quiet iron 66 is located in coil 62
And the lower end of quiet iron 66 extends downwardly into magnetic shield 63.Spring 65 is located in magnetic shield 63, the upper end of spring 65 against quiet iron 66 and
The lower end of spring 65 is against armature 64.Wherein, the upper end of locating cone 67 is connected with armature 64, the lower end of locating cone 67 can stretch into and
Extract second through-hole.
Advantageously, when coil 62 must be electric, armature 64 overcomes the active force of spring 65 to move up and drives locating cone 67
Second through-hole is extracted, when 62 dead electricity of coil, armature 6a4 is moved down and driven under the action of the restoring force of spring 65
Locating cone 67 stretches into second through-hole.
First electromagnet 7a is located on valve body 1 to close the left end of the valve opening, and the push rod 7a1 of the first electromagnet 7a is to the right
It stretches into the valve opening and is directed toward the left end of spool 4.
Second electromagnet 7b is located on link block 3 to close the right end of second through-hole, the push rod of the second electromagnet 7b
7b1 stretches into second through-hole and is directed toward the right end of spool 4 to the left.
First spring 8a is socketed on the push rod 7a1 of the first electromagnet 7a, and the left end of the first spring 8a is against the first electromagnetism
Left end of the right end of iron 7a and the first spring 8a against spool 4.
Second spring 8b is socketed on the linkage section, the right end and of the left end of second spring 8b against the main paragraph
The right end of two spring 8b is against end cap 2.
Wherein, spool 4 can be switched between first position, the second position and the third place.
More specifically, when spool 4 is in first position, the first electromagnet 7a and the second equal dead electricity of electromagnet 7b, the
Push rod 7b1 the second electromagnetism of retraction to the right of push rod 7a1 the first electromagnet of the retraction to the left 7a, the second electromagnet 7b of one electromagnet 7a
Iron 7b, the elastic force of the elastic force and second spring 8b of the first spring 8a offset each other, and locating cone 67 is matched with middle locating slot 503,
Spool 4 makes the first through-flow slot 101 be connected to the first through flow hole 411, and spool 4 keeps the first through-flow slot 101 and the second through-flow slot 102 disconnected
It opens, spool 4 makes the second through-flow slot 102 be connected to the first flow-conveying groove 410, and spool 4 makes the second through-flow slot 102 and the through-flow slot of third
103 disconnect, and spool 4 makes the through-flow slot of third 103 be connected to respectively with the second through flow hole 412 and third through flow hole 421, and spool 4 makes the
Threeway chute 103 and four-way chute 104 disconnect, and spool 4 makes four-way chute 104 be connected to the second flow-conveying groove 420, spool 4
Four-way chute 104 and the 5th through-flow slot 105 is set to disconnect, spool 4 makes the 4th through flow hole 422 of the 5th through-flow slot 105 be connected to.
When spool 4 is in the second position, the first electromagnet 7a obtains electric and the second electromagnet 7b dead electricity, the first electromagnet 7a
Push rod 7a1 stretch out to the right and the elastic force for pushing spool 4 to overcome second spring 7b moves right, the push rod of the second electromagnet 7b
7b1 the second electromagnet 7b of retraction to the right, locating cone 67 are matched with left locating slot 501, and spool 4 makes the first through-flow slot 101 and
Two-way chute 102 disconnects, and spool 4 closes the first through flow hole 411, and spool 4 keeps the second through-flow slot 102 and the through-flow slot 103 of third logical
The connection of the first flow-conveying groove 410 is crossed, spool 4 makes the through-flow slot of third 103 be connected to respectively with the second through flow hole 412, the closing third of spool 4
Through flow hole 421, spool 4 make four-way chute 104 be connected to by the second flow-conveying groove 420 with the 5th through-flow slot 105, and spool 4 makes
The 4th through flow hole 422 of five through-flow slots 105 is connected to.
When spool 4 is in the third place, the first electromagnet 7a dead electricity and the second electromagnet 7b obtains electric, the first electromagnet 7a
Push rod 7a1 the first electromagnet of retraction to the left 7a, the push rod 7b1 of the second electromagnet 7b stretches out and spool 4 pushed to overcome to the left
The elastic force of one spring 7a is moved to the left, and locating cone 67 is matched with right locating slot 502, and spool 4 makes the first through flow hole 411 and first
Through-flow slot 101 is connected to, and spool 4 makes the first through-flow slot 101 be connected to by the first flow-conveying groove 410 with the second through-flow slot 102, spool 4
The second through flow hole 412 is closed, spool 4 makes the second through-flow slot 102 be disconnected with the through-flow slot 103 of third, and spool 4 makes the through-flow slot of third
103 are connected to third through flow hole 421, and spool 4 makes the through-flow slot 103 of third and four-way chute 104 connect by the second flow-conveying groove 420
Logical, spool 4 closes the 4th through flow hole 422, and spool 4 makes four-way chute 104 and the 5th through-flow slot 105 disconnect.
The operation principle of fluid-link steering mode control valve according to the ... of the embodiment of the present invention is as follows：
As the first electromagnet 7a and second electromagnet 7b all dead electricity, spool 4 is the first spring 8a's and second spring 8b
Effect is lower to be in position shown in FIG. 1, and the fluid of the first hydraulic fluid port P is logical by 2 tunnels and the second hydraulic fluid port T-phase, logical by second all the way
Logical with the second hydraulic fluid port T-phase after discharge orifice 412, the first cavity 41, the first through flow hole 411, another way passes through third through flow hole 421, the
It is logical with the second hydraulic fluid port T-phase after two cavitys 42, the 4th through flow hole 422.
First electromagnet 7a obtains the electric push rod that it can be made to be operated in left position, control in it after the first electromagnet 7a electrifications
7a1, which stretches out to the right, pushes spool 4 that the effect of second spring 8b is overcome to move right, and the first hydraulic fluid port P is made to pass through first on spool 4
Flow-conveying groove 410 is connected with third hydraulic fluid port A, and the 4th hydraulic fluid port B is connected to by the second flow-conveying groove 420 with the second hydraulic fluid port T-phase.
Second electromagnet 7b obtains the electric push rod that it can be made to be operated in right position, control in it after the second electromagnet 7b electrifications
7b1 stretches out to the left pushes spool 4 that the effect of the first spring 8a is overcome to move downward, and the first hydraulic fluid port P is made to pass through second on spool 4
Flow-conveying groove 420 is connected with the 4th hydraulic fluid port B, and third hydraulic fluid port A with the first flow-conveying groove 410, the second hydraulic fluid port T-phase by being connected to.
When spool 4 commutates, be required for making electromagnetic location valve 6 first it is electric, make armature 64 upwards and quiet iron 66 inhale to
It drives locating cone 67 to move upwards, is separated with the locating slot on corresponding positioning spool.(it can pass through after reversal valve commutates in place
Delays time to control), then to 6 dead electricity of electromagnetic location valve, under the active force of spring 65, locating cone 67 can move downward, and snap fit onto pair
Inside deserved locating slot, the electromagnet dead electricity for making driving commutate again at this time, spool can reliably rest on corresponding commutation position
It sets, is powered without lasting.
As shown in Figures 5 to 7, in use, the second hydraulic fluid port T is connected with the hydraulic fluid port R of steering gear 11, the first hydraulic fluid port P is with before
The chamber for taking turns steering cylinder 14 is connected, and the hydraulic fluid port L of steering gear 11 is connected with another chamber of front-wheel steer oil cylinder 14.Third hydraulic fluid port A,
4th hydraulic fluid port B is connected with two chambers of rear steering oil cylinder 13 respectively.
It is illustrated in figure 5 the control mode of two-wheeled steering, at this time the first electromagnet 7a and the second electromagnet 7b all no powers,
The present invention is operated in the position that hydraulic fluid port P is connected to hydraulic fluid port T-phase, and steering gear 11 can only control the movement of front-wheel steer oil cylinder 14.
It is illustrated in figure 6 the control mode of four-wheel steering, the first electromagnet 7a electrification pushers movable valve plug 4 is made to be operated in a left side
Position, steering gear at this time 11 can drive the movement of front-wheel steer oil cylinder 14 and rear-axle steering oil cylinder 13, and front-wheel steer oil cylinder is with after
The direction of motion for taking turns steering cylinder is opposite.
It is illustrated in figure 7 the control mode of crab row steering, makes the second electromagnet 7b electrifications that spool 4 be pushed to be operated in right position,
Steering gear at this time 11 can drive the movement of front-wheel steer oil cylinder 14 and rear-axle steering oil cylinder 13, and front-wheel steer oil cylinder and rear rotation
It is identical to the direction of motion of oil cylinder.
Three kinds of control modes of Fig. 5 to Fig. 7, can be realized by automatically controlled program, after steering pattern is set, without electricity
Magnet is powered, and corresponding steering pattern is kept it in by the machinery positioning of positioning spool.
The advantages of fluid-link steering mode control valve according to the ... of the embodiment of the present invention, is：
(1) casting valve body can be used, it is volume compact, light-weight by cast inside runner by oil communication.
(2) it for the switching of steering pattern and holding, only needs the short time to be powered and switches over, machinery positioning is relied on after switching
It is kept, energy saving and long lifespan.It is zero power consumption when being especially operated in two-wheeled steering pattern.
(3) conversion of steering pattern needs the electromagnetism of the electromagnet action and 1 positioning solenoid valve of 1 reversal valve of control
Iron acts, therefore controls reliably, and redundancy is high, the mistake of steering pattern will not be caused to switch because of the malfunction of some electromagnet,
It is safe.
(4) locating cone of spool and positioning solenoid valve is not directly contacted with, but by positioning spool contact, therefore when positioning
Clamping to spool without abrasion, the service life can be extended.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, the meaning of " plurality " is two or more, unless separately
There is clearly specific restriction.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are within the scope of the invention to above-mentioned implementation
Example is changed, changes, replacing and modification, each falls within protection scope of the present invention.
Claims (6)
1. a kind of fluid-link steering mode control valve, which is characterized in that including：
Valve body, the valve body has penetrates through the valve opening of the valve body in left-right direction, also has the first hydraulic fluid port, the on the valve body
Two hydraulic fluid ports, third hydraulic fluid port, the 4th hydraulic fluid port and runner are logical with arranged for interval first from left to right on the internal perisporium of the valve opening
Chute, the second through-flow slot, third is through-flow slot, four-way chute and the 5th through-flow slot, first hydraulic fluid port and the third are through-flow
Slot is connected to, and second hydraulic fluid port is connected to the runner, and the third hydraulic fluid port is connected to the described second through-flow slot, the 4th oil
Mouthful with the four-way chute, the first end of the runner is connected with the described first through-flow slot and the second end of the runner and institute
The 5th through-flow slot is stated to be connected；
End cap, the end cap are located at the right end on the valve body and positioned at the valve opening, have and the valve opening on the end cap
Coaxial first through hole；
Link block, the link block are located at the right side on the valve body and positioned at the end cap, have and institute on the link block
State the second coaxial through-hole of first through hole；
Spool, the spool include main paragraph and linkage section, and the main paragraph can be movably located in the valve opening, described
Linkage section passes through to the right the first through hole and is contained in second through-hole, has left and right arranged for interval in the main paragraph
The first cavity and the second cavity, there is on the side wall of the main paragraph the first through flow hole of the left end for being connected to first cavity
And it is connected to the second through flow hole of the right end of first cavity, have on the side wall of the main paragraph and is connected to second cavity
Left end third through flow hole and connection second cavity right end the 4th through flow hole, have on the side wall of the main paragraph
There is the first flow-conveying groove between first through flow hole and second through flow hole, there is position on the side wall of the main paragraph
The second flow-conveying groove between the third through flow hole and the 4th through flow hole；
Spool is positioned, the positioning spool is fixedly attached in second through-hole on the linkage section, the positioning spool
Periphery wall on have left locating slot, right locating slot and the middle positioning between the left locating slot and the right locating slot
Slot；
Solenoid valve is positioned, the positioning solenoid valve is located on the link block, and the positioning solenoid valve includes locating cone, described fixed
Position cone is selectively matched with the left locating slot, the right locating slot and middle locating slot；
First electromagnet, first electromagnet are located on the valve body to close the left end of the valve opening, first electromagnetism
The push rod of iron stretches into the right the valve opening and is directed toward the left end of the spool；
Second electromagnet, second electromagnet are located on the link block to close the right end of second through-hole, and described
The push rod of two electromagnet stretches into second through-hole and is directed toward the right end of the spool to the left；
First spring, first spring are socketed on the push rod of first electromagnet, the left end of first spring against
Left end of the right end of first electromagnet and first spring against the spool；
Second spring, the second spring are socketed on the linkage section, and the left end of the second spring is against the main paragraph
Right end and the second spring right end against the end cap；
Wherein, the spool can be switched between first position, the second position and the third place.
2. fluid-link steering mode control valve according to claim 1, which is characterized in that when the spool is in first position
When, first electromagnet and the equal dead electricity of the second electromagnet, first described in the push rod retraction to the left of first electromagnet
Electromagnet, the second electromagnet described in the push rod retraction to the right of second electromagnet, the elastic force of first spring and described the
The elastic force of two springs offsets each other, and the locating cone is matched with the middle locating slot, and the spool makes the described first through-flow slot
It is connected to first through flow hole, the spool makes the described first through-flow slot be disconnected with the described second through-flow slot, and the spool makes
The second through-flow slot is connected to first flow-conveying groove, and the spool keeps the described second through-flow slot disconnected with the through-flow slot of the third
It opens, the spool makes the through-flow slot of the third be connected to respectively with second through flow hole and the third through flow hole, the spool
The through-flow slot of the third is set to be disconnected with the four-way chute, the spool makes the four-way chute and second flow-conveying groove
Connection, the spool make the four-way chute be disconnected with the described 5th through-flow slot, and the spool makes the described 5th through-flow slot institute
State the connection of the 4th through flow hole.
3. fluid-link steering mode control valve according to claim 1, which is characterized in that when the spool is in the second position
When, first electromagnet obtains the electric and described second electromagnet dead electricity, and the push rod of first electromagnet is stretched out and pushed to the right
The spool overcomes the elastic force of the second spring to move right, the second electricity described in the push rod retraction to the right of second electromagnet
Magnet, the locating cone are matched with left locating slot, and the spool makes the described first through-flow slot be disconnected with the described second through-flow slot,
The spool closes first through flow hole, and the spool makes the described second through-flow slot and the through-flow slot of the third pass through described the
One flow-conveying groove is connected to, and the spool makes the through-flow slot of the third be connected to respectively with second through flow hole, and the spool closes institute
Third through flow hole is stated, the spool makes the four-way chute be connected to by second flow-conveying groove with the 5th through-flow slot,
The spool makes the 4th through flow hole described in the 5th through-flow slot be connected to.
4. fluid-link steering mode control valve according to claim 1, which is characterized in that when the spool is in the third place
When, the first electromagnet dead electricity and second electromagnet obtain it is electric, described in the push rod retraction to the left of first electromagnet
The push rod of one electromagnet, second electromagnet stretches out and the spool is pushed to overcome the elastic force of first spring to the left to the left
Mobile, the locating cone is matched with right locating slot, and the spool makes first through flow hole be connected to the described first through-flow slot,
The spool makes the described first through-flow slot be connected to by first flow-conveying groove with the described second through-flow slot, and the spool closes institute
The second through flow hole is stated, the spool makes the described second through-flow slot be disconnected with the through-flow slot of the third, and the spool makes the third
Through-flow slot is connected to the third through flow hole, and the spool makes the through-flow slot of the third and the four-way chute pass through described the
Two flow-conveying grooves are connected to, and the spool closes the 4th through flow hole, and the spool keeps the four-way chute logical with the described 5th
Chute disconnects.
5. the fluid-link steering mode control valve according to any one of claim 1-4, which is characterized in that the positioning electromagnetism
Valve further includes：
Flux sleeve, the magnetic conduction are set on the link block；
Coil, the coil are located on the flux sleeve；
Magnetic shield, the magnetic shield is located at the coil and the lower end of the magnetic shield extends downwardly into the flux sleeve；
Armature, the armature can be up or down located in the magnetic shield；
Quiet iron, the quiet iron is located in the coil and the lower end of the quiet iron extends downwardly into the magnetic shield；
Spring, the spring are located in the magnetic shield, and the upper end of the spring is against the lower end of the quiet iron and the spring
Against the armature；
Wherein, the upper end of the locating cone is connected with the armature, and the lower end of the locating cone can stretch into and extract described second
Through-hole.
6. fluid-link steering mode control valve according to claim 5, which is characterized in that described when the coil obtains electric
Armature overcomes the active force of the spring to move up and the locating cone is driven to extract the through-hole, when the coil losing electricity
When, the armature moves down under the action of the restoring force of the spring and the locating cone is driven to stretch into the through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810736151.1A CN108533791B (en) | 2018-07-06 | 2018-07-06 | Hydraulic steering mode control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810736151.1A CN108533791B (en) | 2018-07-06 | 2018-07-06 | Hydraulic steering mode control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108533791A true CN108533791A (en) | 2018-09-14 |
| CN108533791B CN108533791B (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810736151.1A Active CN108533791B (en) | 2018-07-06 | 2018-07-06 | Hydraulic steering mode control valve |
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| Country | Link |
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| CN (1) | CN108533791B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319242A (en) * | 2019-08-05 | 2019-10-11 | 安徽理工大学 | A kind of rotary spool switching mechanism based on bidirectional torsion spring |
| CN113460917A (en) * | 2021-07-15 | 2021-10-01 | 徐州徐工港口机械有限公司 | Multi-mode valve and automatic locking type multi-mode steering system for telescopic arm forklift |
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| CN104454738A (en) * | 2014-12-22 | 2015-03-25 | 浙江海宏液压科技股份有限公司 | Agriculture machine control valve |
| CN106246628A (en) * | 2016-10-10 | 2016-12-21 | 合肥协力液压科技有限公司 | A kind of hydraulic buttery valve |
| CN108150675A (en) * | 2017-12-26 | 2018-06-12 | 宁波文泽机电技术开发有限公司 | A kind of Solenoid ball valve of band positioning |
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|---|---|---|---|---|
| JPH10214715A (en) * | 1998-01-05 | 1998-08-11 | Kenji Masuda | Proportional electromagnet |
| CN203009999U (en) * | 2012-12-30 | 2013-06-19 | 台州江州机械有限公司 | Pressure rod positioning mechanism of pressure-reduction type pilot valve |
| CN104454738A (en) * | 2014-12-22 | 2015-03-25 | 浙江海宏液压科技股份有限公司 | Agriculture machine control valve |
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| CN110319242B (en) * | 2019-08-05 | 2024-03-26 | 安徽理工大学 | Rotary valve core switching mechanism based on bidirectional torsion spring |
| CN113460917A (en) * | 2021-07-15 | 2021-10-01 | 徐州徐工港口机械有限公司 | Multi-mode valve and automatic locking type multi-mode steering system for telescopic arm forklift |
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|---|---|
| CN108533791B (en) | 2021-08-06 |
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Effective date of registration: 20210719 Address after: No. 95 Huicheng Road, Huishan Economic Development Zone, Wuxi City, Jiangsu Province, 214000 Applicant after: Jiangsu Junyuan Equipment Manufacturing Co.,Ltd. Address before: No. 255, 1st floor, building 1, Fengshou street, Chaoan South Road, zumiao street, Chancheng District, Foshan City, Guangdong Province Applicant before: FOSHAN XINZHUO PAISI MACHINERY TECHNOLOGY Co.,Ltd. |
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