CN205190837U - Magenetic exchange valve's structure - Google Patents
Magenetic exchange valve's structure Download PDFInfo
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- CN205190837U CN205190837U CN201521000613.1U CN201521000613U CN205190837U CN 205190837 U CN205190837 U CN 205190837U CN 201521000613 U CN201521000613 U CN 201521000613U CN 205190837 U CN205190837 U CN 205190837U
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Abstract
The utility model relates to a magenetic exchange valve's structure, including valve body, case, valve body end cover and electromagnet assembly, the valve body includes the valve body main aperture, the one end cover of case is equipped with the spring holder, the both ends of case still have three, four bosss of the case mat woven of fine bamboo strips respectively, the case has axial oil pressure balanced through -hole, and the both ends of case still have three bosss of the case mat woven of fine bamboo strips and case fourth boss respectively, the both ends of the interior valve body main aperture of valve body are still followed the axial and are equipped with the 6th step of the 5th step of valve body and valve body respectively, and the 6th step of the 5th step of valve body and valve body lies in the outside at oil return runner both ends respectively, three bosss of the case mat woven of fine bamboo strips at case both ends and case fourth boss respectively with corresponding the 6th step sliding fit of the 5th step of valve body and valve body, the opposite side of spring holder can offset with the 6th step of valve body and/or case fourth boss. The utility model discloses can block that the pollutant gets into electromagnet assembly, improves and uses the reliability to and long service life.
Description
Technical field
The utility model relates to a kind of structure of solenoid directional control valve, is specifically related to a kind of structure of solenoid directional control valve of engineering truck.
Background technique
Engineering truck described in the utility model comprises fork truck, tractor, loader etc.
The structure of the solenoid directional control valve that existing engineering truck is used comprises valve body, spool and electromagnet assembly, described spool is located in the valve body main aperture of valve body, and one end of valve body is fixedly connected with end cap, the other end assembles with electromagnet assembly and communicates with the inner chamber of electromagnet assembly, described valve body comprises three oil ducts and drainback passage, three oil ducts respectively with the first hydraulic fluid port, second hydraulic fluid port is connected with filler opening, return opening is connected with drainback passage, and three oil ducts are all connected with valve body main aperture with drainback passage, existing drainback passage is not only as the drainback passage of pressure oil circulation, also double as the oil pressure balance runner at spool two ends simultaneously, due to pressure oil by drainback passage oil return time, pollutant with regard to containing in easy build-up of pressure oil can enter into the inner chamber of electromagnet assembly, and pollutant is under armature suction, the electromagnetic force of electromagnet assembly can be consumed gradually, the inner chamber of electromagnet assembly easily blocks by the pollutant under long-time accumulation, electromagnet assembly was lost efficacy, once the structural failure of solenoid directional control valve, engineering truck in the process of moving, just normally can not manipulate gearshift, makes engineering truck climbing difficulty, descending slips car, if travel at level land high position gear, also easily stop and do not live car, easily cause significant safety hazards.The structure of the solenoid directional control valve in prior art also has the shortcomings such as working life is short, and contamination resistance is weak, poor reliability.
Summary of the invention
The purpose of this utility model is: provide one block contaminant can enter electromagnet assembly, improves operational safety, and the structure of the solenoid directional control valve of long service life, to overcome the deficiencies in the prior art.
In order to achieve the above object, the technical solution of the utility model is: a kind of structure of solenoid directional control valve, comprises valve body, spool, valve body end cap and electromagnet assembly;
The valve body main aperture that described valve body comprises the first hydraulic fluid port, the second hydraulic fluid port, return opening, filler opening and is axially arranged with along it, and along the first oil duct, the second oil duct and the 3rd oil duct axially arranged apart on valve body inner wall of main hole, described first hydraulic fluid port is connected with the first oil duct, second hydraulic fluid port is connected with the 3rd oil duct, filler opening is connected with the second oil duct, and described first oil duct, the second oil duct are all connected with valve body main aperture with the 3rd oil duct;
Be provided with oil return runner in described valve body, described return opening is connected with oil return runner, and the two ends of oil return runner lay respectively at the outside of the first oil duct and the 3rd oil duct, and the two ends of oil return runner are connected with valve body main aperture;
One end of described valve body is fixedly connected with electromagnet assembly, and the other end of valve body end cap and valve body is tightly connected;
In described valve body main aperture between the two ends of oil return runner, also have valve body first step, valve body second step, valve body the 3rd step and valve body the 4th step arranged apart vertically;
Described spool is located in the valve body main aperture of valve body, and the middle part of spool has spool first boss arranged apart vertically and spool second boss, and spool first boss and spool second boss are equipped with logical pasta;
Described electromagnet assembly comprises the first iron core, the second iron core, armature, pull bar, coil, Returnning spring, yoke, magnetic shield and magnetic guiding loop, one end of described armature and one end load of pull bar or make one, the load or be welded on the first iron core and the second iron core respectively of the two ends of described magnetic shield, and magnetic shield is positioned at the periphery of armature, described coil is located at the periphery of magnetic shield, and between two coils, magnetic guiding loop being housed, described yoke is located at the periphery of two coils;
Described first iron core is provided with axial step hole, and be provided with pad in step hole, described pull bar has spacing preiection, spacing preiection is against the side of pad, the other end of pull bar passes pad and is fixedly connected with one end of spool, and one end of described spool is set with spring seat, and the periphery of the other end of pull bar is set with Returnning spring, and the side of one end of Returnning spring and spring seat offsets, the other end of described Returnning spring and the opposite side of pad offset;
A, described spool have axial oil pressure balance through hole, and the two ends of spool also have the spool mat woven of fine bamboo strips three boss and spool the 4th boss respectively;
The two ends of b, described valve body inner valve body main aperture are also respectively equipped with valve body the 5th step and valve body the 6th step vertically, and valve body the 5th step and valve body the 6th step lay respectively at the outside at oil return runner two ends;
The spool mat woven of fine bamboo strips three boss at c, described spool two ends and spool the 4th boss are slidably matched with corresponding valve body the 5th step and valve body the 6th step respectively;
The opposite side of d, described spring seat can offset with valve body the 6th step and/or spool the 4th boss.
In technique scheme, the outer wall of described spool first boss, spool second boss, the spool mat woven of fine bamboo strips three boss and spool the 4th boss is equipped with balancing slit, wherein spool first boss and spool second boss are equipped with two or more logical pasta, logical pasta is plane or concave arc surface, and logical formation between pasta and the inwall of valve body main aperture leads to hydraulic fluid port.
In technique scheme, one end of described armature and the threaded one end of pull bar are connected and fixed, pull bar has annular stop projection, one end of spool has the adapter sleeve of one each other, the other end of described pull bar passes pad and inserts in the adapter sleeve of spool one end, and is fixedly connected with adapter sleeve by link.
In technique scheme, described second iron core is provided with mounting hole and driving handle is housed, and is provided with seal ring between the periphery of the handle bar of described driving handle and mounting hole.
In technique scheme; described electromagnet assembly also comprises insulating protective layer; insulating protective layer is coated on the periphery of the first iron core and yoke, is equipped with dust ring between one end of insulating protective layer and the first iron core and valve body and between the other end of insulating protective layer and the second iron core and yoke.
In technique scheme, the two ends of described magnetic shield are set on the core pipe of the first iron core and the core pipe of the second iron core, the core pipe of described first iron core and be equipped with seal ring between the core pipe of the second iron core and magnetic shield.
In technique scheme, described first iron core is circular iron core, and the second iron core is square core.
In technique scheme, the oil port of described first hydraulic fluid port, the second hydraulic fluid port, return opening and filler opening is equipped with seal ring.
In technique scheme, described electromagnet assembly is fixedly connected with one end of valve body by fastening piece.
In technique scheme, the first iron core of described electromagnet assembly is connected with the threaded one end of valve body.
The good effect that the utility model has is: because spool described in the utility model has axial oil pressure balance through hole, and the two ends of spool also have the spool mat woven of fine bamboo strips three boss and spool the 4th boss respectively; The two ends of described valve body inner valve body main aperture are also respectively equipped with valve body the 5th step and valve body the 6th step vertically, and valve body the 5th step and valve body the 6th step lay respectively at the outside at oil return runner two ends; 6th valve body step of the opposite side of spring seat and the close armature of valve body offsets, make in spool of the present utility model, to be provided with the oil pressure balance through hole that can play balanced action to spool two ends oil pressure, like this, pressure oil is in oil return process, pressure oil is by oil return circulated, avoid the inside that pollutant enters electromagnet assembly, pollutant would not be allowed to be blocked the inside of electromagnet assembly, also the electromagnetic force of electromagnet assembly would not be consumed, not only increase operational safety of the present utility model, and make long service life; Two ends of described spool also have the spool mat woven of fine bamboo strips three boss and spool the 4th boss respectively, the spool mat woven of fine bamboo strips three boss of two ends of described spool and spool the 4th boss are slidably matched with corresponding valve body the 5th step and valve body the 6th step respectively, like this, not only gap will be had between the boss of two ends of spool and corresponding valve body step, and oil film between gap, will be produced, can seal action be played.The utility model block contaminant can enter electromagnet assembly, improves operational safety, and long service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the A-A cross-sectional schematic of Fig. 1;
Fig. 3 is the B-B cross-sectional schematic at the 4th valve body step place in Fig. 1;
Fig. 4 is that schematic diagram is looked on the right side of Fig. 1;
Fig. 5 is the second view of Fig. 1;
Fig. 6 is the third view of Fig. 1;
Fig. 7 is the schematic perspective view of spool in Fig. 1;
Fig. 8 is the C-C cross-sectional schematic at the first valve body step place in Fig. 1;
Fig. 9 is that the E of valve body in Fig. 1 is to elevational schematic view;
Figure 10 is the F-F cross-sectional schematic of valve body in Fig. 1;
Figure 11 is the G-G cross-sectional schematic of valve body in Fig. 1;
Figure 12 is the structural representation of the another kind of embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing and the embodiment that provides, the utility model is further described, but is not limited thereto.
As shown in Fig. 1,2,3,4,5,6,7,8,9,10,11,12, a kind of structure of solenoid directional control valve, comprises valve body 1, spool 2, valve body end cap 3 and electromagnet assembly 4;
The valve body main aperture 1-8 that described valve body 1 comprises the first hydraulic fluid port 1-4, the second hydraulic fluid port 1-5, return opening 1-6, filler opening 1-7 and is axially arranged with along it, and along the first oil duct 1-1, the second oil duct 1-2 and the 3rd oil duct 1-3 axially arranged apart on valve body main aperture 1-8 inwall, described first hydraulic fluid port 1-4 is connected with the first oil duct 1-1, second hydraulic fluid port 1-5 is connected with the 3rd oil duct 1-3, filler opening 1-7 is connected with the second oil duct 1-2, and described first oil duct 1-1, the second oil duct 1-2 are all connected with valve body main aperture 1-8 with the 3rd oil duct 1-3;
Be provided with oil return runner 1-9 in described valve body 1, described return opening 1-6 is connected with oil return runner 1-9, and the two ends of oil return runner 1-9 lay respectively at the outside of the first oil duct 1-1 and the 3rd oil duct 1-3, and the two ends of oil return runner 1-9 are connected with valve body main aperture 1-8;
One end of described valve body 1 is fixedly connected with electromagnet assembly 4, and valve body end cap 3 is tightly connected with the other end of valve body 1;
In described valve body main aperture 1-8 between the two ends of oil return runner 1-9, also have valve body first step 1-11, valve body second step 1-12 arranged apart vertically, valve body the 3rd step 1-13 and valve body the 4th step 1-14;
Described spool 2 is located in the valve body main aperture 1-8 of valve body 1, and the middle part of spool 2 has spool first boss 2-1 arranged apart vertically and spool second boss 2-2, and spool first boss 2-1 and spool second boss 2-2 is equipped with logical pasta 2-6;
Described electromagnet assembly 4 comprises the first iron core 4-1, second iron core 4-2, armature 4-3, pull bar 4-3-2, coil 4-4, Returnning spring 4-5, yoke 4-6, magnetic shield 7 and magnetic guiding loop 8, one end of described armature 4-3 and one end load of pull bar 4-3-2 or make one, the load or be welded on the first iron core 4-1 and the second iron core 4-2 respectively of the two ends of described magnetic shield 7, and magnetic shield 7 is positioned at the periphery of armature 4-3, described coil 4-4 is located at the periphery of magnetic shield 7, and between two coil 4-4, magnetic guiding loop 8 is housed, described yoke 4-6 is located at the periphery of two coil 4-4,
Described first iron core 4-1 is provided with axial step hole 4-1-1, and be provided with pad 5 in step hole 4-1-1, described pull bar 4-3-2 has spacing preiection 4-3-1, spacing preiection 4-3-1 is against the side of pad 5, the other end of pull bar 4-3-2 passes pad 5 and is fixedly connected with one end of spool 2, one end of described spool 2 is set with spring seat 6, the periphery of the other end of pull bar 4-3-2 is set with Returnning spring 4-5, and the side of one end of Returnning spring 4-5 and spring seat 6 offsets, the other end of described Returnning spring 4-5 and the opposite side of pad 5 offset;
A, described spool 2 have axial oil pressure balance through hole 2-a, and the two ends of spool 2 also have the spool mat woven of fine bamboo strips three boss 2-3 and spool the 4th boss 2-4 respectively;
The two ends of b, described valve body 1 inner valve body main aperture 1-8 are also respectively equipped with the outside that valve body the 5th step 1-15 and valve body the 6th step 1-16, valve body the 5th step 1-15 and valve body the 6th step 1-16 lay respectively at oil return runner 1-9 two ends vertically;
The spool mat woven of fine bamboo strips three boss 2-3 at c, described spool 2 two ends and spool the 4th boss 2-4 is slidably matched with corresponding valve body the 5th step 1-15 and valve body the 6th step 1-16 respectively;
The opposite side of d, described spring seat 6 can offset with valve body the 6th step 1-16 and/or spool the 4th boss 2-4.
As shown in Fig. 1,5,6,7,8, logical pasta is in the flowing of a runner to another runner for the ease of pressure oil, the outer wall of described spool first boss 2-1, spool second boss 2-2, the spool mat woven of fine bamboo strips three boss 2-3 and spool the 4th boss 2-4 is equipped with balancing slit 2-7, wherein spool first boss 2-1 and spool second boss 2-2 is equipped with two or more logical pasta 2-6, logical pasta 2-6 is plane or concave arc surface, and logical formation between pasta 2-6 and the inwall of valve body main aperture 1-8 leads to hydraulic fluid port 1-8-1.
As shown in Fig. 1,5,6, in order to make the utility model rational in infrastructure compact, and be convenient to assembling, one end of described armature 4-3 and the threaded one end of pull bar 4-3-2 are connected and fixed, pull bar 4-3-2 has the protruding 4-3-1 of annular stop, one end of spool 2 has the adapter sleeve 2-5 of one each other, and the other end of described pull bar 4-3-2 passes pad 5 and inserts in the adapter sleeve 2-2 of spool 2 one end, and is fixedly connected with adapter sleeve 2-5 by link.Link can adopt pin or bearing pin or jump ring etc.
As shown in Fig. 1,4,5,6,9,12, once the dirt in fluid makes armature or spool block, armature can be promoted by driving handle and indirectly promote spool to move, do emergency processing effect, described second iron core 4-2 is provided with mounting hole and driving handle 9 is housed, and is provided with seal ring between the periphery of the handle bar of described driving handle 9 and mounting hole.
As shown in Fig. 1,5,6,12; in order to make the good airproof performance of electromagnet assembly; prevent the granular substances such as dust and corrosive gas liquid from entering into the inside of electromagnet assembly; described electromagnet assembly 4 also comprises insulating protective layer 4-7; insulating protective layer 4-7 is coated on the periphery of the first iron core 4-1 and yoke 4-6, is equipped with dust ring 10 between one end of insulating protective layer 4-7 and the first iron core 4-1 and valve body 1 and between the other end of insulating protective layer 4-7 and the second iron core 4-2 and yoke 4-6.
As shown in Fig. 1,5,6,12, in order to make the good airproof performance between iron core and magnetic shield, the two ends of described magnetic shield 7 are set on the core pipe 4-1-2 of the first iron core 4-1 and the core pipe 4-2-1 of the second iron core 4-2, the core pipe 4-1-2 of described first iron core 4-1 and be equipped with seal ring between the core pipe 4-2-1 of the second iron core 4-2 and magnetic shield 7.Certainly, also can be that the two ends of magnetic shield 7 are welded on the core pipe 4-1-2 of the first iron core 4-1 and the core pipe 4-2-1 of the second iron core 4-2 respectively, and magnetic shield 7 be positioned at the periphery of armature 4-3.
As shown in Figure 4, in order to make the utility model rational in infrastructure compact, be convenient to install, described first iron core 4-1 is circular iron core, and 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 solenoid valve attachment face, the oil port of described first hydraulic fluid port 1-4, the second hydraulic fluid port 1-5, return opening 1-6 and filler opening 1-7 is equipped with seal ring.
As shown in Fig. 1,4,5,6,9, in order to make the utility model easy to assembly, described electromagnet assembly 4 is fixedly connected with by fastening piece 11 one end with valve body 1.
As shown in figure 12, for the ease of assembling, the first iron core 4-1 of described electromagnet assembly 4 is connected with the threaded one end of valve body 1.
Valve body main aperture 1-8 described in the utility model is the axial hole of the parts such as equipped valve gap, spool and spring seat.
Be provided with U-shaped oil return runner 1-9 in valve body 1 described in the utility model, described return opening 1-6 is connected with the stage casing of oil return runner 1-9, and the two ends of oil return runner 1-3 lay respectively at the outside of the first oil duct 1-1 and the second oil duct 1-2; Oil return runner 1-9 may not be U-shaped casting mold runner, but the method adopting auxiliary hole to add plug makes other mach pass runner.
Working procedure of the present utility model: during use, is connected filler opening 1-7 with the oil outlet of oil pump, and the first hydraulic fluid port 1-4 and the second hydraulic fluid port 1-5 respectively corresponding actuator port of oil cylinder are connected, and described return opening 1-6 is connected with the filler opening of fuel tank;
As shown in Figure 1, when two groups of coil 4-4 all must not electricity time, described spool 2 is under the effect of Returnning spring 4-5, be in the meta of valve body 1, now, pressure oil does not enter the first hydraulic fluid port 1-4, the second hydraulic fluid port 1-5 and return opening 1-6 by filler opening 1-7, and now the first hydraulic fluid port 1-4, the second hydraulic fluid port 1-5 are all connected with return opening 1-6;
As shown in Figure 5, when one group of coil 4-4 near the first iron core 4-1 obtains electric, another group coil must not be electric, the annular protrusion 4-3-1 of described armature 4-3 promotes pad 5 and moves forward, Returnning spring 4-5 is made to be compressive state, and pull bar 4-3-2 promotion spool 2 is moved forward, pressure oil from a hydraulic fluid port, another hydraulic fluid port of oil cylinder, the second hydraulic fluid port 1-5 of filler opening 1-7, the first hydraulic fluid port 1-4, oil cylinder, returns in fuel tank finally by return opening 1-6 successively;
As shown in Figure 6, when one group of coil 4-4 near the second iron core 4-2 obtains electric, another group coil must not be electric, the pull bar 4-3-2 of described armature 4-3 pulls spool 2 to move backward, Returnning spring 4-5 is made to be extended state, pressure oil from a hydraulic fluid port, another hydraulic fluid port of oil cylinder, the first hydraulic fluid port 1-4 of filler opening 1-7, the second hydraulic fluid port 1-5, oil cylinder, returns in fuel tank finally by return opening 1-6 successively.
Owing to having the oil pressure balance through hole 2-a that can play the axis of balanced action to spool 2 two ends oil pressure in spool 2 described in the utility model, oil return runner 1-3 and oil pressure balance through hole 2-a is isolated by physics mode, instead of take into account the effect of oil return and balance valve core two ends oil pressure as an oil return runner of the structure of the solenoid directional control valve in prior art simultaneously, like this, pressure oil is in oil return process, pressure oil is by oil return circulated, avoid the inside that pollutant enters electromagnet assembly 4, pollutant would not be allowed to be blocked the inside of electromagnet assembly 4, also the electromagnetic force of electromagnet assembly would not be consumed, not only increase operational safety of the present utility model, and make long service life.
Claims (10)
1. a structure for solenoid directional control valve, comprises valve body (1), spool (2), valve body end cap (3) and electromagnet assembly (4);
Described valve body (1) comprises the first hydraulic fluid port (1-4), second hydraulic fluid port (1-5), return opening (1-6), filler opening (1-7) and the valve body main aperture (1-8) be axially arranged with along it, and along the first oil duct (1-1) axially arranged apart on valve body main aperture (1-8) inwall, second oil duct (1-2) and the 3rd oil duct (1-3), described first hydraulic fluid port (1-4) is connected with the first oil duct (1-1), second hydraulic fluid port (1-5) is connected with the 3rd oil duct (1-3), filler opening (1-7) is connected with the second oil duct (1-2), described first oil duct (1-1), second oil duct (1-2) is all connected with valve body main aperture (1-8) with the 3rd oil duct (1-3),
Oil return runner (1-9) is provided with in described valve body (1), described return opening (1-6) is connected with oil return runner (1-9), the two ends of oil return runner (1-9) lay respectively at the outside of the first oil duct (1-1) and the 3rd oil duct (1-3), and the two ends of oil return runner (1-9) are connected with valve body main aperture (1-8);
One end of described valve body (1) is fixedly connected with electromagnet assembly (4), and valve body end cap (3) is tightly connected with the other end of valve body (1);
Between the two ends being positioned at oil return runner (1-9) in described valve body main aperture (1-8), also have valve body first step (1-11), valve body second step (1-12), valve body the 3rd step (1-13) and valve body the 4th step (1-14) arranged apart vertically;
Described spool (2) is located in the valve body main aperture (1-8) of valve body (1), the middle part of spool (2) has spool first boss (2-1) arranged apart vertically and spool second boss (2-2), and spool first boss (2-1) and spool second boss (2-2) are equipped with logical pasta (2-6);
Described electromagnet assembly (4) comprises the first iron core (4-1), second iron core (4-2), armature (4-3), pull bar (4-3-2), coil (4-4), Returnning spring (4-5), yoke (4-6), magnetic shield (7) and magnetic guiding loop (8), one end of described armature (4-3) and one end load of pull bar (4-3-2) or make one, the load or be welded on the first iron core (4-1) and the second iron core (4-2) respectively of the two ends of described magnetic shield (7), and magnetic shield (7) is positioned at the periphery of armature (4-3), described coil (4-4) is located at the periphery of magnetic shield (7), and between two coils (4-4), magnetic guiding loop (8) is housed, described yoke (4-6) is located at the periphery of two coils (4-4),
Described first iron core (4-1) is provided with axial step hole (4-1-1), and be provided with pad (5) in step hole (4-1-1), described pull bar (4-3-2) has spacing preiection (4-3-1), spacing preiection (4-3-1) is against the side of pad (5), the other end of pull bar (4-3-2) passes pad (5) and is fixedly connected with one end of spool (2), one end of described spool (2) is set with spring seat (6), the periphery of the other end of pull bar (4-3-2) is set with Returnning spring (4-5), and the side of one end of Returnning spring (4-5) and spring seat (6) offsets, the other end of described Returnning spring (4-5) and the opposite side of pad (5) offset, it is characterized in that:
A, described spool (2) have axial oil pressure balance through hole (2-a), and the two ends of spool (2) also have spool the 3rd boss (2-3) and spool the 4th boss (2-4) respectively;
The two ends of b, described valve body (1) inner valve body main aperture (1-8) are also respectively equipped with valve body the 5th step (1-15) and valve body the 6th step (1-16) vertically, and valve body the 5th step (1-15) and valve body the 6th step (1-16) lay respectively at the outside at oil return runner (1-9) two ends;
The spool the 3rd boss (2-3) at c, described spool (2) two ends and spool the 4th boss (2-4) are slidably matched with corresponding valve body the 5th step (1-15) and valve body the 6th step (1-16) respectively;
The opposite side of d, described spring seat (6) can offset with valve body the 6th step (1-16) and/or spool the 4th boss (2-4).
2. the structure of solenoid directional control valve according to claim 1, it is characterized in that: the outer wall of described spool first boss (2-1), spool second boss (2-2), spool the 3rd boss (2-3) and spool the 4th boss (2-4) is equipped with balancing slit (2-7), wherein spool first boss (2-1) and spool second boss (2-2) are equipped with two or more logical pasta (2-6), logical pasta (2-6) is plane or concave arc surface, and logical formation between pasta (2-6) and the inwall of valve body main aperture (1-8) leads to hydraulic fluid port (1-8-1).
3. the structure of solenoid directional control valve according to claim 1, it is characterized in that: one end of described armature (4-3) and the threaded one end of pull bar (4-3-2) are connected and fixed, pull bar (4-3-2) has annular stop projection (4-3-1), one end of spool (2) has the adapter sleeve (2-5) of one each other, the other end of described pull bar (4-3-2) passes pad (5) and inserts in the adapter sleeve (2-5) of spool (2) one end, and is fixedly connected with adapter sleeve (2-5) by link.
4. the structure of solenoid directional control valve according to claim 1, is characterized in that: described second iron core (4-2) is provided with mounting hole and driving handle (9) is housed, and is provided with seal ring between the periphery of the handle bar of described driving handle (9) and mounting hole.
5. the structure of solenoid directional control valve according to claim 1; it is characterized in that: described electromagnet assembly (4) also comprises insulating protective layer (4-7); insulating protective layer (4-7) is coated on the periphery of the first iron core (4-1) and yoke (4-6), is equipped with dust ring (10) between one end of insulating protective layer (4-7) and the first iron core (4-1) and valve body (1) and between the other end of insulating protective layer (4-7) and the second iron core (4-2) and yoke (4-6).
6. the structure of solenoid directional control valve according to claim 1, it is characterized in that: the two ends of described magnetic shield (7) are set on the core pipe (4-1-2) of the first iron core (4-1) and the core pipe (4-2-1) of the second iron core (4-2), the core pipe (4-1-2) of described first iron core (4-1) and be equipped with seal ring between the core pipe (4-2-1) of the second iron core (4-2) and magnetic shield (7).
7. the structure of magnetic selector valve according to claim 1, is characterized in that: described first iron core (4-1) is circular iron core, and the second iron core (4-2) is square core.
8. the structure of solenoid directional control valve according to claim 1, is characterized in that: the oil port of described first hydraulic fluid port (1-4), the second hydraulic fluid port (1-5), return opening (1-6) and filler opening (1-7) is equipped with seal ring.
9. the structure of solenoid directional control valve according to claim 1, is characterized in that: described electromagnet assembly (4) is fixedly connected with by fastening piece (11) one end with valve body (1).
10. the structure of solenoid directional control valve according to claim 1, is characterized in that: first iron core (4-1) of described electromagnet assembly (4) is connected with the threaded one end of valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521000613.1U CN205190837U (en) | 2015-12-07 | 2015-12-07 | Magenetic exchange valve's structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521000613.1U CN205190837U (en) | 2015-12-07 | 2015-12-07 | Magenetic exchange valve's structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205190837U true CN205190837U (en) | 2016-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201521000613.1U Active CN205190837U (en) | 2015-12-07 | 2015-12-07 | Magenetic exchange valve's structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018076536A1 (en) * | 2016-10-31 | 2018-05-03 | 常州市康士达机电有限公司 | Heat dissipation-type electromagnetic reversing valve |
| CN110864135A (en) * | 2018-08-27 | 2020-03-06 | 脸谱科技有限责任公司 | Electromagnetically actuated fluidic device valve apparatus, systems, and methods |
-
2015
- 2015-12-07 CN CN201521000613.1U patent/CN205190837U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018076536A1 (en) * | 2016-10-31 | 2018-05-03 | 常州市康士达机电有限公司 | Heat dissipation-type electromagnetic reversing valve |
| CN110864135A (en) * | 2018-08-27 | 2020-03-06 | 脸谱科技有限责任公司 | Electromagnetically actuated fluidic device valve apparatus, systems, and methods |
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