CN105422914B - Solenoid directional control valve - Google Patents
Solenoid directional control valve Download PDFInfo
- Publication number
- CN105422914B CN105422914B CN201510886489.1A CN201510886489A CN105422914B CN 105422914 B CN105422914 B CN 105422914B CN 201510886489 A CN201510886489 A CN 201510886489A CN 105422914 B CN105422914 B CN 105422914B
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- Prior art keywords
- valve body
- valve
- valve element
- oil
- boss
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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
- F16K11/07—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 with cylindrical slides
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
Abstract
The present invention relates to a kind of solenoid directional control valve, including valve body, valve element, valve body end cap and electromagnet assembly；The valve body includes valve body main aperture；One end of valve element is set with spring base；The both ends of valve element also have the valve element mat woven of fine bamboo strips three, four boss respectively；Oil pressure balance runner is additionally provided with valve body, the both ends of oil pressure balance runner are located at the outside at oil return runner both ends respectively, and the both ends of oil pressure balance runner are connected with valve body main aperture, the both ends of valve body inner valve body main aperture are also respectively equipped with the step of valve body the five, the six vertically, and the step of valve body the five, the six is respectively positioned at the outside at oil return runner both ends and the inner side at oil pressure balance runner both ends；The boss of the valve element mat woven of fine bamboo strips three and the boss of valve element the 4th at valve element both ends are slidably matched with the corresponding step of valve body the 5th and the step of valve body the 6th respectively；The opposite side of the spring base can offset with the step of valve body the 6th and/or the boss of valve element the 4th.The present invention can block contaminant enter electromagnet assembly, improve use reliability, and service life length.
Description
Technical field
The present invention relates to a kind of solenoid directional control valve, and in particular to a kind of solenoid directional control valve of engineering truck.
Background technology
Engineering truck of the present invention includes fork truck, tractor, loading machine etc..
Solenoid directional control valve used in existing engineering truck includes valve body, valve element and electromagnet assembly, and the valve element is located at valve
In the valve body main aperture of body, and one end of valve body is fixedly connected with end cap, the other end and electromagnet assembly assemble and with electromagnet group
The inner chamber of part communicates, and the valve body includes three oil ducts and drainback passage, three oil ducts respectively with the first hydraulic fluid port, the second oil
Mouth is connected with oil inlet, and oil return opening is connected with drainback passage, and three oil ducts and drainback passage are connected with valve body main aperture
Logical, existing drainback passage serves not only as the drainback passage of pressure oil circulation, while also doubles as the oil pressure balance stream at valve element both ends
Road, during due to pressure oil by drainback passage oil return, the pollutant for being easy for containing in build-up of pressure oil can enter electromagnet
The inner chamber of component, and pollutant can gradually use up the electromagnetic force of electromagnet assembly under armature suction, be accumulated in long-time
Under pollutant easily the inner chamber of electromagnet assembly is blocked so that electromagnet assembly fail；Once electromagnetic switch defective valve, work
Journey car in the process of moving, cannot normally manipulate gearshift so that engineering truck climbing is difficult, descending car slipping, if in the high-order gear in level land
Traveling, being also easy to stop does not live car, easily causes significant safety hazards.Solenoid directional control valve in prior art, which also has, uses the longevity
Order short, contamination resistance is weak, the shortcomings of poor reliability.
The content of the invention
The purpose of the present invention is：There is provided one kind can block contaminant enter electromagnet assembly, raising use reliability, with
And the solenoid directional control valve of service life length, with overcome the deficiencies in the prior art.
In order to achieve the above object, the technical scheme is that：A kind of solenoid directional control valve, including valve body, valve element, valve body
End cap and electromagnet assembly；
The valve body includes the first hydraulic fluid port, the second hydraulic fluid port, oil return opening, oil inlet and the valve body main aperture being axially arranged with along it,
And the first oil duct of axially spaced arrangement, the second oil duct and the 3rd oil duct along valve body inner wall of main hole, first hydraulic fluid port with
First oil duct is connected, and the second hydraulic fluid port is connected with the 3rd oil duct, and oil inlet is connected with the second oil duct, first oil duct,
Second oil duct and the 3rd oil duct are connected with valve body main aperture；
Oil return runner is provided with the valve body, the oil return opening is connected with oil return runner, the both ends difference of oil return runner
Positioned at the outside of the first oil duct and the 3rd oil duct, and the both ends of oil return runner are connected with valve body main aperture；
One end of the valve body is fixedly connected with electromagnet assembly, and the other end of valve body end cap and valve body is tightly connected；
In the valve body main aperture between the both ends of oil return runner, the valve body First of also axially spaced arrangement
Rank, valve body second step, the step of valve body the 3rd and the step of valve body the 4th；
The valve element is located in the valve body main aperture of valve body, and the middle part of valve element has the valve element first of axially spaced arrangement convex
Platform and valve element second boss, and it is equipped with logical pasta in valve element first boss and valve element second boss；
The electromagnet assembly includes the first iron core, the second iron core, armature, pull bar, two coils, back-moving spring, magnetic
Yoke, magnetic shield and magnetic guiding loop, one end of the armature and one end load of pull bar are formed integrally, the both ends of the magnetic shield
Load or it is welded on respectively on the first iron core and the second iron core, and magnetic shield is located at the periphery of armature, described two coils are located at
The periphery of magnetic shield, and magnetic guiding loop is housed between two coils, the yoke is located at the periphery of two coils；
First iron core is provided with the stepped hole of axial direction, and pad is provided with stepped hole, has on the pull bar spacing
Projection, spacing preiection are against the side of pad, and the other end of pull bar is fixedly connected through pad and with one end of valve element, described
One end of valve element is set with spring base, and the periphery of the other end of pull bar is set with back-moving spring, and one end of back-moving spring with
The side of spring base offsets, and the other end of the back-moving spring and the opposite side of pad offset；
A, the both ends of the valve element also have the boss of the valve element mat woven of fine bamboo strips three and the boss of valve element the 4th respectively；
B, oil pressure balance runner is additionally provided with the valve body, the both ends of the oil pressure balance runner are located at oil return runner respectively
The outside at both ends, and the both ends of oil pressure balance runner are connected with valve body main aperture, the both ends of valve body inner valve body main aperture are also vertically
The step of valve body the 5th and the step of valve body the 6th are respectively equipped with, the step of valve body the 5th and the step of valve body the 6th are located at oil return runner respectively
The outside at both ends and the inner side at oil pressure balance runner both ends；
C, the boss of the valve element mat woven of fine bamboo strips three at the valve element both ends and the boss of valve element the 4th respectively with the corresponding step of valve body the 5th and
The step of valve body the 6th is slidably matched；
D, the opposite side of the spring base can offset with the step of valve body the 6th and/or the boss of valve element the 4th.
In the above-mentioned technical solutions, the valve element first boss, valve element second boss, the boss of the valve element mat woven of fine bamboo strips three and valve element the 4th
Balancing slit is equipped with the outer wall of boss, is wherein equipped with two or more in valve element first boss and valve element second boss
Logical pasta, logical pasta be plane or cancave cambered surface, and is formed between logical pasta and the inwall of valve body main aperture and lead to hydraulic fluid port.
In the above-mentioned technical solutions, one end of the armature and the threaded one end of pull bar are connected, and have on pull bar
There is annular stop projection, one end of valve element has the connection sleeve pipe being mutually integrated, and the other end of the pull bar passes through pad simultaneously
Insert in the connection sleeve pipe of valve element one end, and be fixedly connected by connector with connection sleeve pipe.
In the above-mentioned technical solutions, second iron core is provided with mounting hole and driving handle, the driving handle is housed
Shank periphery and mounting hole between be provided with sealing ring.
In the above-mentioned technical solutions, the electromagnet assembly also includes insulating protective layer, and insulating protective layer is coated on first
The periphery of iron core and yoke, between one end of insulating protective layer and the first iron core and valve body and the other end of insulating protective layer with
Dust ring is equipped between second iron core and yoke.
In the above-mentioned technical solutions, the both ends of the magnetic shield are set in the core pipe and second iron core of the first iron core
In core pipe, sealing ring is equipped between the core pipe of first iron core and the core pipe and magnetic shield of the second iron core.
In the above-mentioned technical solutions, first iron core is circular iron core, and the second iron core is square core.
In the above-mentioned technical solutions, the oil port of first hydraulic fluid port, the second hydraulic fluid port, oil return opening and oil inlet is equipped with close
Seal.
In the above-mentioned technical solutions, the electromagnet assembly is fixedly connected by fastener with one end of valve body.
In the above-mentioned technical solutions, the threaded one end of the first iron core of the electromagnet assembly and valve body connects.
Good effect is possessed by the present invention：It is described due to being additionally provided with oil pressure balance runner in valve body of the present invention
The both ends of oil pressure balance runner are located at the outside at oil return runner both ends, and the both ends of oil pressure balance runner and valve body main aperture phase respectively
Connection, two ends of valve body inner valve body main aperture are also respectively equipped with the step of valve body the 5th and the step of valve body the 6th, valve body vertically
5th step and the step of valve body the 6th are respectively positioned at the outside at oil return runner both ends and the inner side at oil pressure balance runner both ends, spring
6th valve body step of the opposite side of seat and the close armature of valve body offsets so that is provided with an independent energy in valve body of the invention
The oil pressure balance runner of balanced action is played to valve element both ends oil pressure, by oil return runner and oil pressure balance runner by physics mode every
From so, during oil return, pressure oil is circulated pressure oil by oil return runner, is avoided pollutant and is entered electromagnet assembly
Inside, pollutant would not be allowed to block the inside of electromagnet assembly, would not also consume the electromagnetic force of electromagnet assembly, no
The use reliability of the present invention is improve only, and causes service life length；Two ends of the valve element also have valve respectively
The boss of the core mat woven of fine bamboo strips three and the boss of valve element the 4th, the boss of the valve element mat woven of fine bamboo strips three and the boss of valve element the 4th of two ends of the valve element respectively with
The corresponding step of valve body the 5th and the step of valve body the 6th are slidably matched, so, not only the boss of two ends of valve element with it is corresponding
Valve body step between will have gap, and oil film will be produced between gap, sealing function can be played.The present invention can hinder
Gear pollutant enters electromagnet assembly, improves use reliability, and service life length.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of the present invention；
Fig. 2 is Fig. 1 A-A schematic cross-sectional views；
Fig. 3 is the B-B schematic cross-sectional views at the 4th valve body step in Fig. 1；
The right side that Fig. 4 is Fig. 1 regards schematic diagram；
Fig. 5 is Fig. 1 second of view；
Fig. 6 is Fig. 1 the third view；
Fig. 7 is the schematic perspective view of valve element in Fig. 1；
Fig. 8 is the C-C schematic cross-sectional views at the first valve body step in Fig. 1；
Fig. 9 is the E of valve body in Fig. 1 to elevational schematic view；
Figure 10 is the F-F schematic cross-sectional views of valve body in Fig. 1；
Figure 11 is the G-G schematic cross-sectional views of valve body in Fig. 1；
Figure 12 is the structural representation of another embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing and the embodiment provided, the present invention is further illustrated, but is not limited thereto.
As shown in Fig. 1,2,3,4,5,6,7,8,9,10,11,12, a kind of solenoid directional control valve, including valve body 1, valve element 2, valve
Body end lid 3 and electromagnet assembly 4；
The valve body 1 includes the first hydraulic fluid port 1-4, the second hydraulic fluid port 1-5, oil return opening 1-6, oil inlet 1-7 and set along its axial direction
Some valve body main aperture 1-8, and the first oil duct 1-1 of axially spaced arrangement, the second oil duct 1-2 along valve body main aperture 1-8 inwalls
It is connected with the 3rd oil duct 1-3, the first hydraulic fluid port 1-4 with the first oil duct 1-1, the second hydraulic fluid port 1-5 is connected with the 3rd oil duct 1-3
Logical, oil inlet 1-7 is connected with the second oil duct 1-2, the first oil duct 1-1, the second oil duct 1-2 and the 3rd oil duct 1-3 with
Valve body main aperture 1-8 is connected；
It is connected in the valve body 1 provided with oil return runner 1-9, the oil return opening 1-6 with oil return runner 1-9, oil return runner
1-9 both ends are located at the first oil duct 1-1 and the 3rd oil duct 1-3 outside, and oil return runner 1-9 both ends and valve body main aperture respectively
1-8 is connected；
One end of the valve body 1 is fixedly connected with electromagnet assembly 4, and the other end sealing of valve body end cap 3 and valve body 1 connects
Connect；In the valve body main aperture 1-8 between oil return runner 1-9 both ends, the valve body First of also axially spaced arrangement
Rank 1-11, valve body second step 1-12, the step 1-13 of valve body the 3rd and the step 1-14 of valve body the 4th；
The valve element 2 is located in the valve body main aperture 1-8 of valve body 1, and the middle part of valve element 2 has the valve element of axially spaced arrangement
First boss 2-1 and valve element second boss 2-2, and it is equipped with logical pasta on valve element first boss 2-1 and valve element second boss 2-2
2-6；
The electromagnet assembly 4 includes the first iron core 4-1, the second iron core 4-2, armature 4-3, pull bar 4-3-2, two lines
Enclose 4-4, back-moving spring 4-5, yoke 4-6, magnetic shield 7 and magnetic guiding loop 8, one end of the armature 4-3 and the one of pull bar 4-3-2
End or is formed integrally load, and the both ends of the magnetic shield 7 load or are welded on the first iron core 4-1 and the second iron core 4-2 respectively,
And magnetic shield 7 is located at armature 4-3 periphery, described two coil 4-4 are located at the periphery of magnetic shield 7, and between two coil 4-4
Equipped with magnetic guiding loop 8, the yoke 4-6 is located at two coil 4-4 periphery；
The first iron core 4-1 is provided with the stepped hole 4-1-1 of axial direction, and is provided with pad 5 in stepped hole 4-1-1, described to push away
On pull bar 4-3-2 there is spacing preiection 4-3-1, spacing preiection 4-3-1 to be against the side of pad 5, the pull bar 4-3-2 other end
It is fixedly connected through pad 5 and with one end of valve element 2, one end of the valve element 2 is set with spring base 6, and pull bar 4-3-2's is another
The periphery of one end is set with back-moving spring 4-5, and back-moving spring 4-5 one end and the side of spring base 6 offset, the reset bullet
The opposite side of the spring 4-5 other end and pad 5 offsets；
A, the both ends of the valve element 2 also have the boss 2-3 of the valve element mat woven of fine bamboo strips three and boss 2-4 of valve element the 4th respectively；
B, oil pressure balance runner 1-10, the oil pressure balance runner 1-10 both ends difference position are additionally provided with the valve body 1
In the outside at oil return runner 1-9 both ends, and oil pressure balance runner 1-10 both ends are connected with valve body main aperture 1-8, the internal valve of valve body 1
Body main aperture 1-8 both ends are also respectively equipped with the step 1-15 of valve body the 5th and the step 1-16 of valve body the 6th, valve body the 5th vertically
The rank 1-15 and step 1-16 of valve body the 6th is respectively positioned at the outside at oil return runner 1-9 both ends and oil pressure balance runner 1-10 both ends
Inner side；
C, the boss 2-3 of the valve element mat woven of fine bamboo strips three and the boss 2-4 of valve element the 4th at the both ends of valve element 2 respectively with corresponding valve body the 5th
Step 1-15 and the step 1-16 of valve body the 6th are slidably matched；
D, the opposite side of the spring base 6 can offset with the step 1-16 of valve body the 6th and/or the boss 2-4 of valve element the 4th.
As shown in Fig. 1,5,6,7,8, logical pasta be for the ease of pressure oil in flowing of the runner to another runner,
The valve element first boss 2-1, valve element second boss 2-2, the boss 2-3 of the valve element mat woven of fine bamboo strips three and the boss 2-4 of valve element the 4th outer wall on
Be equipped with balancing slit 2-7, wherein valve element first boss 2-1 and valve element second boss 2-2 be equipped with it is two or more
Logical pasta 2-6, logical pasta 2-6 are plane or cancave cambered surface, and logical oil is formed between logical pasta 2-6 and valve body main aperture 1-8 inwall
Mouth 1-8-1.
As shown in Fig. 1,5,6, in order that must be of the invention rational in infrastructure compact, and be easy to assemble, the one of the armature 4-3
Hold the threaded one end with pull bar 4-3-2 to be connected, there is annular stop projection 4-3-1 on pull bar 4-3-2, valve element 2
One end has the connection sleeve pipe 2-5, the pull bar 4-3-2 that are mutually the integrated other end through pad 5 and inserts the one end of valve element 2
Connection sleeve pipe 2-5 in, and be fixedly connected by connector with connection sleeve pipe 2-5.Connector can use pin or bearing pin or card
Spring etc..
, can be by promoting hand once the dirt in fluid blocks armature or valve element as shown in Fig. 1,4,5,6,9,12
Handle promotes armature and promotes valve element movement indirectly, makees emergency processing effect, the second iron core 4-2 is provided with mounting hole simultaneously
Equipped with driving handle 9, sealing ring is provided between the periphery of the shank of the driving handle 9 and mounting hole.
As shown in Fig. 1,5,6,12, in order that electromagnet assembly good airproof performance, prevent the granular substances such as dust and
Corrosive gas liquid enters the inside of electromagnet assembly, and the electromagnet assembly 4 also includes insulating protective layer 4-7, insulation
Protective layer 4-7 is coated on the first iron core 4-1 and yoke 4-6 periphery, insulating protective layer 4-7 one end and the first iron core 4-1 and
Dust ring 10 is equipped between valve body 1 and between the insulating protective layer 4-7 other end and the second iron core 4-2 and yoke 4-6.
As shown in Fig. 1,5,6,12, in order that obtaining the good airproof performance between iron core and magnetic shield, the both ends of the magnetic shield 7
It is set on the first iron core 4-1 core pipe 4-1-2 and the second iron core 4-2 core pipe 4-2-1, the first iron core 4-1's
Sealing ring is equipped between core pipe 4-1-2 and the second iron core 4-2 core pipe 4-2-1 and magnetic shield 7.It is of course also possible to it is every magnetic
The both ends of set 7 are respectively welded on the first iron core 4-1 core pipe 4-1-2 and the second iron core 4-2 core pipe 4-2-1, and magnetic shield 7
Positioned at armature 4-3 periphery.
As shown in figure 4, in order that it is of the invention rational in infrastructure compact, be easily installed, the first iron core 4-1 is circular iron
Core, the second iron core 4-2 is square core.
As shown in Fig. 1,2,5,6, for the ease of being tightly connected with oil cylinder and fuel tank, and the sealing of magnetic valve mounting surface
Property, the first hydraulic fluid port 1-4, the second hydraulic fluid port 1-5, oil return opening 1-6 and oil inlet 1-7 oil port are equipped with sealing ring.
As shown in Fig. 1,4,5,6,9, in order that must be of the invention easy to assembly, the electromagnet assembly 4 passes through fastener 11
It is fixedly connected with one end of valve body 1.
As shown in figure 12, for the ease of assembling, the first iron core 4-1 of the electromagnet assembly 4 and the threaded one end of valve body 1
Connection.
Valve body main aperture 1-8 of the present invention is the axially extending bore of the parts such as equipped bonnet, valve element and spring base.
U-shaped oil return runner 1-9, the oil return opening 1-6 and oil return runner 1-9 stage casing are provided with valve body 1 of the present invention
It is connected, oil return runner 1-9 both ends are located at the first oil duct 1-1 and the second oil duct 1-2 outside respectively；In the valve body 1 also
Provided with U-shaped oil pressure balance runner 1-10.Oil return runner 1-9 and oil pressure balance runner 1-10 may not be U-shaped casting mold runner, and
It is to add the method for plug that other mach pass runners are made using fabrication hole.
The course of work of the present invention：In use, oil inlet 1-7 is connected with the oil-out of oil pump, the first hydraulic fluid port 1-4 and
The corresponding actuator port of oil cylinder is connected second hydraulic fluid port 1-5 respectively, and the oil return opening 1-6 is connected with the oil inlet of fuel tank；
As shown in figure 1, when two groups of coil 4-4 must not be electric, the valve element 2 is in the presence of back-moving spring 4-5
The middle position of valve body 1, now, pressure oil can not enter the first hydraulic fluid port 1-4, the second hydraulic fluid port 1-5 and oil return opening 1- by oil inlet 1-7
6, and now the first hydraulic fluid port 1-4, the second hydraulic fluid port 1-5 and oil return opening 1-6 be connected to it is logical；
As shown in figure 5, when one group of coil 4-4 close to the first iron core 4-1 obtains electric, another group of coil must not be electric, described
Armature 4-3 annular protrusion 4-3-1 promotes pad 5 to move forward so that back-moving spring 4-5 is in compressive state, and makes pull bar
4-3-2 promote valve element 2 move forward, pressure oil successively from oil inlet 1-7, the first hydraulic fluid port 1-4, oil cylinder hydraulic fluid port, an oil cylinder
Another hydraulic fluid port, the second hydraulic fluid port 1-5, backed into finally by oil return opening 1-6 in fuel tank；
As shown in fig. 6, when one group of coil 4-4 close to the second iron core 4-2 obtains electric, another group of coil must not be electric, described
Armature 4-3 pull bar 4-3-2 pulls valve element 2 to be moved rearwards so that back-moving spring 4-5 is in extended state, pressure oil successively from
Oil inlet 1-7, the second hydraulic fluid port 1-5, a hydraulic fluid port of oil cylinder, another hydraulic fluid port of oil cylinder, the first hydraulic fluid port 1-4, finally by return
Hydraulic fluid port 1-6 is backed into fuel tank.
Due to being provided with independent one oil pressure balance that balanced action can be played to the both ends oil pressure of valve element 2 in the valve body 1 of the present invention
Runner 1-10, oil return runner 1-3 and oil pressure balance runner 1-10 are isolated by physics mode, rather than as in prior art
One oil return runner of solenoid directional control valve takes into account oil return and the effect of balance valve core both ends oil pressure simultaneously, and so, pressure oil is returning
During oil, pressure oil is circulated by oil return runner, is avoided the inside that pollutant enters electromagnet assembly 4, would not be allowed dirt
Dye thing blocks the inside of electromagnet assembly 4, would not also consume the electromagnetic force of electromagnet assembly, not only increases the present invention's
Use reliability, and cause service life length.
Claims (10)
1. a kind of solenoid directional control valve, including valve body (1), valve element (2), valve body end cap (3) and electromagnet assembly (4)；
The valve body (1) include the first hydraulic fluid port (1-4), the second hydraulic fluid port (1-5), oil return opening (1-6), oil inlet (1-7) and along its
The valve body main aperture (1-8) being axially arranged with, and along valve body main aperture (1-8) inwall the first oil duct (1-1) of axially spaced arrangement,
Second oil duct (1-2) and the 3rd oil duct (1-3), first hydraulic fluid port (1-4) are connected with the first oil duct (1-1), the second hydraulic fluid port
(1-5) is connected with the 3rd oil duct (1-3), and oil inlet (1-7) is connected with the second oil duct (1-2), the first oil duct (1-
1), the second oil duct (1-2) and the 3rd oil duct (1-3) are connected with valve body main aperture (1-8)；
Oil return runner (1-9) is provided with the valve body (1), the oil return opening (1-6) is connected with oil return runner (1-9), oil return
The both ends of runner (1-9) are located at the outside of the first oil duct (1-1) and the 3rd oil duct (1-3), and the two of oil return runner (1-9) respectively
End is connected with valve body main aperture (1-8)；
One end of the valve body (1) is fixedly connected with electromagnet assembly (4), and the other end of valve body end cap (3) and valve body (1) seals
Connection；
In the valve body main aperture (1-8) between the both ends of oil return runner (1-9), the valve body of also axially spaced arrangement the
One step (1-11), valve body second step (1-12), the step (1-13) of valve body the 3rd and the step (1-14) of valve body the 4th；The valve
Core (2) is located in the valve body main aperture (1-8) of valve body (1), and the middle part of valve element (2) has the valve element first of axially spaced arrangement convex
Platform (2-1) and valve element second boss (2-2), and logical oil is equipped with valve element first boss (2-1) and valve element second boss (2-2)
Face (2-6)；
The electromagnet assembly (4) include the first iron core (4-1), the second iron core (4-2), armature (4-3), pull bar (4-3-2),
Two coils (4-4), back-moving spring (4-5), yoke (4-6), magnetic shield (7) and magnetic guiding loop (8), the one of the armature (4-3)
Hold and one end load of pull bar (4-3-2) or be formed integrally, the both ends of the magnetic shield (7) load or are welded on first respectively
On iron core (4-1) and the second iron core (4-2), and magnetic shield (7) is located at the periphery of armature (4-3), and described two coils (4-4) set
In the periphery of magnetic shield (7), and magnetic guiding loop (8) is housed between two coils (4-4), the yoke (4-6) is located at two coils
The periphery of (4-4)；
First iron core (4-1) is provided with the stepped hole (4-1-1) of axial direction, and is provided with pad (5), institute in stepped hole (4-1-1)
Stating has spacing preiection (4-3-1) on pull bar (4-3-2), spacing preiection (4-3-1) is against the side of pad (5), pull bar
The other end of (4-3-2) is fixedly connected through pad (5) and with one end of valve element (2), and one end of the valve element (2) is set with bullet
Spring abutment (6), the periphery of the other end of pull bar (4-3-2) are set with back-moving spring (4-5), and one end of back-moving spring (4-5)
Offseted with the side of spring base (6), the opposite side of the other end and pad (5) of the back-moving spring (4-5) offsets；Its feature exists
In：
A, the both ends of the valve element (2) also have the boss of the valve element mat woven of fine bamboo strips three (2-3) and the boss (2-4) of valve element the 4th respectively；
B, oil pressure balance runner (1-10), the both ends difference of the oil pressure balance runner (1-10) are additionally provided with the valve body (1)
Positioned at the outside at oil return runner (1-9) both ends, and the both ends of oil pressure balance runner (1-10) are connected with valve body main aperture (1-8),
The both ends of valve body (1) inner valve body main aperture (1-8) are also respectively equipped with the step (1-15) of valve body the 5th and the step of valve body the 6th vertically
(1-16), the step (1-15) of valve body the 5th and the step (1-16) of valve body the 6th are located at the outside at oil return runner (1-9) both ends respectively
With the inner side at oil pressure balance runner (1-10) both ends；
C, the boss of the valve element mat woven of fine bamboo strips three (2-3) at valve element (2) both ends and the boss (2-4) of valve element the 4th respectively with corresponding valve body
Five steps (1-15) and the step (1-16) of valve body the 6th are slidably matched；
D, the opposite side of the spring base (6) can offset with the step (1-16) of valve body the 6th and/or the boss (2-4) of valve element the 4th.
2. solenoid directional control valve according to claim 1, it is characterised in that：The valve element first boss (2-1), valve element second
Balancing slit (2-7) is equipped with the outer wall of boss (2-2), the boss of the valve element mat woven of fine bamboo strips three (2-3) and the boss (2-4) of valve element the 4th, wherein
Two or more logical pastas (2-6) are equipped with valve element first boss (2-1) and valve element second boss (2-2), lead to oil
Face (2-6) is plane or cancave cambered surface, and logical hydraulic fluid port (1-8- is formed between logical pasta (2-6) and the inwall of valve body main aperture (1-8)
1)。
3. solenoid directional control valve according to claim 1, it is characterised in that：One end of the armature (4-3) and pull bar (4-
Threaded one end 3-2) is connected, and has annular stop projection (4-3-1), one end tool of valve element (2) on pull bar (4-3-2)
There is the connection sleeve pipe (2-5) being mutually integrated, the other end of the pull bar (4-3-2) through pad (5) and inserts valve element (2) one
In the connection sleeve pipe (2-5) at end, and it is fixedly connected by connector with connection sleeve pipe (2-5).
4. solenoid directional control valve according to claim 1, it is characterised in that：Second iron core (4-2) is provided with mounting hole
And driving handle (9) is housed, it is provided with sealing ring between the periphery of the shank of the driving handle (9) and mounting hole.
5. solenoid directional control valve according to claim 1, it is characterised in that：The electromagnet assembly (4) also includes insulation and protected
Sheath (4-7), insulating protective layer (4-7) are coated on the periphery of the first iron core (4-1) and yoke (4-6), insulating protective layer (4-7)
One end and the first iron core (4-1) and valve body (1) between and insulating protective layer (4-7) the other end and the second iron core (4-2)
And dust ring (10) is equipped between yoke (4-6).
6. solenoid directional control valve according to claim 1, it is characterised in that：The both ends of the magnetic shield (7) are set in
In the core pipe (4-1-2) of first iron core (4-1) and the core pipe (4-2-1) of the second iron core (4-2), first iron core (4-1)
Sealing ring is equipped between the core pipe (4-2-1) and magnetic shield (7) of core pipe (4-1-2) and the second iron core (4-2).
7. magnetic reversal valve according to claim 1, it is characterised in that：First iron core (4-1) is circular iron core, second
Iron core (4-2) is square core.
8. solenoid directional control valve according to claim 1, it is characterised in that：First hydraulic fluid port (1-4), the second hydraulic fluid port (1-
5), the oil port of oil return opening (1-6) and oil inlet (1-7) is equipped with sealing ring.
9. solenoid directional control valve according to claim 1, it is characterised in that：The electromagnet assembly (4) passes through fastener
(11) one end with valve body (1) is fixedly connected.
10. solenoid directional control valve according to claim 1, it is characterised in that：First iron core of the electromagnet assembly (4)
(4-1) is connected with the threaded one end of valve body (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510886489.1A CN105422914B (en) | 2015-12-07 | 2015-12-07 | Solenoid directional control valve |
| PCT/CN2016/111378 WO2017097267A1 (en) | 2015-12-07 | 2016-12-21 | Electromagnetic directional control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510886489.1A CN105422914B (en) | 2015-12-07 | 2015-12-07 | Solenoid directional control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105422914A CN105422914A (en) | 2016-03-23 |
| CN105422914B true CN105422914B (en) | 2018-01-12 |
Family
ID=55501347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510886489.1A Active CN105422914B (en) | 2015-12-07 | 2015-12-07 | Solenoid directional control valve |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105422914B (en) |
| WO (1) | WO2017097267A1 (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422914B (en) * | 2015-12-07 | 2018-01-12 | 常州市康士达机电有限公司 | Solenoid directional control valve |
| CN105952951B (en) * | 2016-06-30 | 2018-11-20 | 常州市康士达机电有限公司 | Solenoid directional control valve and its push rod armature structure |
| CN106382388A (en) * | 2016-10-10 | 2017-02-08 | 合肥协力液压科技有限公司 | Electromagnetic proportional valve |
| CN106286955A (en) * | 2016-10-10 | 2017-01-04 | 合肥协力液压科技有限公司 | Reversing solenoid valve |
| CN106286455B (en) * | 2016-10-31 | 2018-08-07 | 常州市康士达机电有限公司 | Heat dissipation type solenoid directional control valve |
| CN107061795A (en) * | 2017-02-21 | 2017-08-18 | 江苏恒立液压科技有限公司 | Solenoid directional control valve |
| CN107180694B (en) * | 2017-04-19 | 2019-09-24 | 常州市康士达机电有限公司 | The electromagnet assembly of solenoid directional control valve |
| CN107143436B (en) * | 2017-06-28 | 2023-06-09 | 哈尔滨工程大学 | Combined double-electromagnetic fuel gas injection valve |
| CN107830203A (en) * | 2017-10-27 | 2018-03-23 | 江西省唯欣高科精密五金有限公司 | Valve element, solenoid directional control valve |
| CN108443561B (en) * | 2018-05-18 | 2024-03-08 | 常州市康士达机电有限公司 | Electromagnetic reversing valve and valve body thereof |
| CN109723692B (en) * | 2018-12-18 | 2023-11-03 | 浙江三尚智迪科技有限公司 | pressure control valve |
| CN109707888A (en) * | 2019-02-19 | 2019-05-03 | 新乡市德恩智能工业有限公司 | A kind of hydraulic trigger-type automatic reset mechanism |
| CN109780265B (en) * | 2019-02-28 | 2023-09-26 | 浙江高翔工贸有限公司 | Electric control switch valve for on-off of pipeline |
| CN110206568A (en) * | 2019-07-19 | 2019-09-06 | 巨隆集团芜湖兴隆液压有限公司 | Multi-functional monoblock type commutation valve group |
| CN110513527A (en) * | 2019-07-31 | 2019-11-29 | 武汉船用机械有限责任公司 | Solenoid directional control valve |
| CN114754174B (en) * | 2022-03-23 | 2024-03-29 | 浙江富杰德汽车系统有限公司 | Electromagnetic valve with engine oil recovery function |
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| CN105422914B (en) * | 2015-12-07 | 2018-01-12 | 常州市康士达机电有限公司 | Solenoid directional control valve |
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- 2015-12-07 CN CN201510886489.1A patent/CN105422914B/en active Active
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2016
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| US5350152A (en) * | 1993-12-27 | 1994-09-27 | Caterpillar Inc. | Displacement controlled hydraulic proportional valve |
| CN202118019U (en) * | 2011-04-17 | 2012-01-18 | 常德中联重科液压有限公司 | Hydraulic control component and control loop applying same |
| CN104736858A (en) * | 2012-07-31 | 2015-06-24 | 卡特彼勒公司 | A hydraulic system with a dynamic seal |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2017097267A1 (en) | 2017-06-15 |
| CN105422914A (en) | 2016-03-23 |
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