CN205078890U - Two three -way switch solenoid valves - Google Patents
Two three -way switch solenoid valves Download PDFInfo
- Publication number
- CN205078890U CN205078890U CN201520823847.XU CN201520823847U CN205078890U CN 205078890 U CN205078890 U CN 205078890U CN 201520823847 U CN201520823847 U CN 201520823847U CN 205078890 U CN205078890 U CN 205078890U
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- China
- Prior art keywords
- iron core
- pressure oil
- valve body
- bit triplet
- switch electromagnetic
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Abstract
The utility model discloses a two three -way switch solenoid valves, including the casing and assemble the electromagnetic coil assembly in the casing, shell assembly has the valve body, has seted up import of pressure oil and the export of pressure oil on this valve body, and the center pin of valve body is provided with the pressure chamber to being equipped with the disk seat in the valve body, and this pressure chamber is provided with and moves iron core and steel ball, the export of pressure oil and the pressure chamber communicates with each other, and electromagnetic coil assembly's center is provided with quiet iron core, and the center of this quiet iron core is provided with the pressure release mouth, quiet iron core with moving and being provided with the spring between the iron core, the steel ball is fixed in move the center of iron core to the disk seat and the pressure release mouth that assemble on the valve body with the axial cooperate. The utility model has the advantages of: simple structure, reasonable, its steel ball with move the iron core and fix and be in the same place, shortened response time greatly, improved the control efficiency of solenoid valve, also reduced the fault rate of solenoid valve.
Description
Technical field
The utility model relates to a kind of component of gearbox, specifically a kind of two-bit triplet switch electromagnetic valve.
Background technique
Gearbox is one of principal assembly in automobile and engineering machinery transmission; For forklift, the actual service condition of forklift is very complicated, as starting, idling parking, low speed or fast running, acceleration, deceleration, climbing and reversing etc., this just requires that the driving force of forklift and the speed of a motor vehicle can change in sizable scope, and the Driving Torque of the reciprocating engine adopted at present extensively and rotation speed change scope less, this just requires the existence of gearbox, and conventional gearbox is based on manual transmission.Along with the raising that user requires engineering machinery travelling comfort, electrichydraulic control gearbox is simple to operate with it, the advantage such as laborsaving at home construction machinery industry is developed rapidly, and in electrichydraulic control gearbox, gearshift is realized by electrichydraulic control mode engagement clutch, wherein solenoid valve is the component of very weight, the overall performance seeming will directly to have influence on gearbox of its quality and performance.
At present, the two-bit triplet switch electromagnetic valve adopted in electrichydraulic control gearbox is of a great variety, but they have common feature: the dynamic iron core in solenoid valve is separated setting with sealed steel ball; Dynamic iron core is separated the response link arranging and add solenoid valve with sealed steel ball, have impact on the speed of response of solenoid valve, and then have impact on the efficiency of solenoid valve, various response link is also cause one of factor that existing two-bit triplet switch electromagnetic valve rate of fault is high, and therefore its structure is further improved.
Summary of the invention
Technical problem to be solved in the utility model is the present situation for prior art, and provide simple and reasonable for structure, fast response time, efficiency is high, a kind of two-bit triplet switch electromagnetic valve of failure rate is low.
The utility model solves the problems of the technologies described above adopted technological scheme:
A kind of two-bit triplet switch electromagnetic valve, include housing and be assemblied in the electromagnetic coil assembly in housing, housing is equipped with valve body, this valve body offers pressure oil import and pressure oil outlet, the central shaft of valve body is to being equipped with valve seat, pressure chamber is provided with in valve body, this pressure chamber is provided with dynamic iron core and steel ball, pressure oil outlet communicates with described pressure chamber, the center of electromagnetic coil assembly is provided with static iron core, the center of this static iron core is provided with pressure relief opening, spring is provided with between static iron core and described dynamic iron core, steel ball is fixed on the center of described dynamic iron core, and match with the valve seat be axially assemblied on valve body and pressure relief opening.
The technical measures optimized also comprise:
Above-mentioned electromagnetic coil assembly includes coil rack, enameled cable winding and electric mortiser sheet, and enameled cable winding is wound on described coil rack, and electric mortiser sheet is connected with described enameled cable winding electric.
Injection molding cavity and exhaust port on above-mentioned coil rack, coil rack is also provided with electric mortiser sheet attachment hole.
Above-mentioned electromagnetic coil assembly is provided with front shroud near valve seat side, and it is provided with back shroud away from valve seat side.
Pad is provided with between the end face of above-mentioned front shroud and described valve seat.
Above-mentioned back shroud and described static iron core fix, and back shroud offers injecting hole, and the outer wall of static iron core offers injection slot.
Above-mentioned valve body central shaft is to offering center hole, and this center hole communicates with described pressure oil import, and valve seat is assemblied in this center hole.
Above-mentioned pressure oil inlet is provided with filter screen.
Above-mentioned housing is outside equipped with plastic shell, and electric mortiser sheet is arranged on described plastic shell.
Above-mentioned housing comprises housing body and fixing part integrated with described housing body, the diameter of fixing part is greater than the diameter of described housing body, and housing body is provided with injection moulding intake port.
A kind of two-bit triplet switch electromagnetic valve of the present utility model, valve body offers pressure oil import and pressure oil outlet, pressure chamber is provided with in valve body, pressure chamber is provided with dynamic iron core and steel ball, steel ball is fixed on the center of dynamic iron core, and matches with the valve seat be axially assemblied on valve body and pressure relief opening; The steel ball of this solenoid valve and dynamic iron core are fixed on one, enormously simplify responder, shorten the response time, make the control of solenoid valve sensitiveer.During energising, electromagnetic force overcomes the effect of spring force, iron core is moved to left, because steel ball and dynamic iron core are fixed together, steel ball also and then moves to left, and now valve is opened, pressure oil import and pressure oil export conducting, pressure oil is from pressure oil import feed pressure chamber, and then flow out from pressure oil outlet, now pressure relief opening is closed; During power-off, the effect that the dynamic iron core of spring force promotion and steel ball overcome oil pressure moves to right, and it is separated that steel ball and valve seat are fitted and pressure oil import and pressure oil are exported.This electromagnetic valve structure is simple, rationally, fast response time, efficiency is high, failure rate is low.
In addition, between front shroud and the end face of valve seat, be provided with pad, the sealing between valve body side and coil sides can be ensured, ensure that the reliability of solenoid valve.
At pressure oil, inlet is provided with filter screen, can effectively avoid extraneous impurity to enter affecting it in solenoid valve normally working.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present utility model;
Fig. 2 is the sectional view of A-A in Fig. 1;
Fig. 3 is the sectional structure schematic diagram of the utility model valve body;
Fig. 4 is the three-dimensional structure diagram that the utility model back shroud and static iron core are assembled together;
Fig. 5 is the sectional view that the utility model back shroud and static iron core are assembled together;
Fig. 6 is the three-dimensional structure diagram of the utility model housing;
Fig. 7 is the three-dimensional structure diagram of the utility model coil rack.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
Structural representation of the present utility model as shown in Figure 1 to Figure 7 shows the,
Reference character is wherein: housing 1, housing body 11, injection moulding intake port 11a, fixing part 12, valve body 2, pressure chamber 2a, center hole 2b, pressure oil import 21, filter screen 21a, pressure oil outlet 22, coil rack 31, injection molding cavity 31a, exhaust port 31b, electric mortiser sheet attachment hole 31c, enameled cable winding 32, electric mortiser sheet 33, valve seat 41, dynamic iron core 42, steel ball 43, static iron core 44, pressure relief opening 44a, injection slot 44b, spring 45, front shroud 51, back shroud 52, injecting hole 52a, pad 6, plastic shell 7.
As shown in Figures 1 to 7,
A kind of two-bit triplet switch electromagnetic valve, the electromagnetic coil assembly including housing 1 and be assemblied in housing 1, housing 1 is equipped with valve body 2, this valve body 2 offers pressure oil import 21 and pressure oil outlet 22, the central shaft of valve body 2 is to being equipped with valve seat 41, pressure chamber 2a is provided with in valve body 2, this pressure chamber 2a is provided with dynamic iron core 42 and steel ball 43, pressure oil outlet 22 communicates with described pressure chamber 2a, the center of electromagnetic coil assembly is provided with static iron core 44, the center of this static iron core 44 is provided with pressure relief opening 44a, spring 45 is provided with between static iron core 44 and described dynamic iron core 42, steel ball 43 is fixed on the center of described dynamic iron core 42, and match with the valve seat 41 be axially assemblied on valve body 2 and pressure relief opening 44a.
Pressure oil import 21, i.e. P mouth; Pressure oil outlet 22, i.e. A mouth; Pressure relief opening 44a, i.e. T mouth.
Pressure oil import 21 radial direction is offered, and the number of pressure oil import 21 is two, and two pressure oil imports 21 are positioned at diametrically same; Pressure oil outlet 22 is axially offered, and the number of pressure oil outlet 22 is also two, and two pressure oil outlets 22 be arranged in parallel.
Steel ball 43 and dynamic iron core 42 are riveted fixing, easy to process, sound construction.
In embodiment, electromagnetic coil assembly includes coil rack 31, enameled cable winding 32 and electric mortiser sheet 33, and enameled cable winding 32 is wound on described coil rack 31, and electric mortiser sheet 33 is electrically connected with described enameled cable winding 32.
In embodiment, injection molding cavity 31a and exhaust port 31b on coil rack 31, coil rack 31 is also provided with electric mortiser sheet attachment hole 31c.
Arranging electric mortiser sheet attachment hole 31c makes the connection of electric mortiser sheet 33 convenient, can improve the stability that efficiency of assembling is connected with electric mortiser sheet 33.The setting of injection molding cavity 31a can make coil rack 31 more tight with the combination of static iron core 44, improves sealing, prevents leakage of oil; And the setting of exhaust port 31b makes in injection moulding process, air can therefrom discharge the quality ensureing injection moulding, and then ensures the quality of product.
In embodiment, electromagnetic coil assembly is provided with front shroud 51 near valve seat 41 side, and it is provided with back shroud 52 away from valve seat 41 side.
In embodiment, between the end face of front shroud 51 and described valve seat 41, be provided with pad 6.
Electromagnetic coil assembly every in central, can prevent extraneous impurity from entering and affecting normal work and the working life of electromagnetic coil by front shroud 51 and back shroud 52; And the setting of pad 6, ensure that the sealing between valve body side and coil sides, effectively avoid the pressure oil of valve body side leak to coil sides and affect electromagnetic coil, improve the reliability and stability of solenoid valve.
In embodiment, back shroud 52 and described static iron core 44 fix, and back shroud 52 offers injecting hole 52a, the outer wall of static iron core 44 offers injection slot 44b.
Here, the outer wall of static iron core 44 has been offered the three road injection slot 44b be parallel to each other, has arranged the surface area that injection slot 44b adds static iron core 44, when can make injection moulding, static iron core 44 and coil rack 31 are more tight in combination, prevent the generation of oil leakage phenomenon.
In embodiment, valve body 2 central shaft is to offering center hole 2b, and this center hole 2b communicates with described pressure oil import 21, and valve seat 41 is assemblied in this center hole 2b.
In embodiment, pressure oil import 21 place is provided with filter screen 21a.Filter screen 21a is set and effectively prevent extraneous impurity from pressure oil import 21 and then valve body 2, and affect the normal work of solenoid valve, effectively can reduce the rate of fault of solenoid valve, improve the working life of solenoid valve.
In embodiment, housing 1 is outside equipped with plastic shell 7, and electric mortiser sheet 33 is arranged on described plastic shell 7.
In embodiment, housing 1 comprises housing body 11 and fixing part 12 integrated with described housing body 11, the diameter of fixing part 12 is greater than the diameter of described housing body 11, housing body 11 is provided with injection moulding intake port 11a.
During assembling, back shroud 52 is fixed on the side of coil rack 31, then enameled cable winding 32 is assemblied on coil rack 31, electric mortiser sheet 33 is connected with the electric mortiser sheet attachment hole 31c on coil rack 31; Afterwards at electromagnetic coil assembly overcoat upper shell 1, the fixing part 12 of housing 1 is positioned at valve body side.Then front shroud 51 is assemblied in the opposite side of coil rack 31, one end and the static iron core 44 of spring 45 offset, the dynamic iron core 42 that the other end and center are fixed with steel ball 43 offsets, and pad 6 and front shroud 51 is close to mutually, then again by involutory with front shroud 51 for the valve body 2 being equipped with valve seat 41.After involutory, the fixing part 12 of housing 1 inwardly compressed thus valve body 2 is fixed, finally completing injection moulding and form plastic shell 7.
Working principle:
When power-off, dynamic iron core 42 and steel ball 43 move to right under the elastic force effect of spring 45, and steel ball 43 and valve seat 41 offset to be formed and seal, make to close between pressure oil import 21 and pressure chamber 2a, namely pressure oil import 21 and pressure oil export 22 separated, valve closedown; Meanwhile, steel ball 43 and pressure relief opening 44a depart from, and pressure relief opening 44a communicates with pressure chamber 2a.
During energising, electromagnetic coil assembly and static iron core 44 form electromagnet and produce electromagnetic force, electromagnetic force overcomes the elastic force acting of spring 45, iron core 42 and steel ball 43 are moved to the left, steel ball 43 and valve seat 41 are departed from, thus make pressure oil import 21 identical with pressure chamber 2a, namely pressure oil import 21 is communicated with between exporting 22 with pressure oil, and valve is opened; Meanwhile, steel ball 43 and pressure relief opening 44a offset closed, and pressure relief opening 44a's and pressure chamber 2a is separated.
Steel ball 43 and dynamic iron core 42 are fixed together by this solenoid valve, make both become as a whole, steel ball 43 can be made like this to move together with dynamic iron core 42, simplify the response of step of solenoid valve, shorten the response time of solenoid valve, the response time of this solenoid valve only has 8 to 15 milliseconds; Response time is short, controls sensitive.
Most preferred embodiment of the present utility model is illustrated, and the various change made by those of ordinary skill in the art or remodeling all can not depart from scope of the present utility model.
Claims (10)
1. a two-bit triplet switch electromagnetic valve, the electromagnetic coil assembly including housing (1) and be assemblied in housing (1), it is characterized in that: described housing (1) is equipped with valve body (2), this valve body (2) offers pressure oil import (21) and pressure oil outlet (22), the central shaft of described valve body (2) is to being equipped with valve seat (41), pressure chamber (2a) is provided with in described valve body (2), this pressure chamber (2a) is provided with dynamic iron core (42) and steel ball (43), described pressure oil outlet (22) communicates with described pressure chamber (2a), the center of described electromagnetic coil assembly is provided with static iron core (44), the center of this static iron core (44) is provided with pressure relief opening (44a), spring (45) is provided with between described static iron core (44) and described dynamic iron core (42), described steel ball (43) is fixed on the center of described dynamic iron core (42), and match with the valve seat (41) be axially assemblied on valve body (2) and pressure relief opening (44a).
2. a kind of two-bit triplet switch electromagnetic valve according to claim 1, it is characterized in that: described electromagnetic coil assembly includes coil rack (31), enameled cable winding (32) and electric mortiser sheet (33), described enameled cable winding (32) is wound on described coil rack (31), and described electric mortiser sheet (33) is electrically connected with described enameled cable winding (32).
3. a kind of two-bit triplet switch electromagnetic valve according to claim 2, it is characterized in that: the upper injection molding cavity (31a) of described coil rack (31) and exhaust port (31b), described coil rack (31) is also provided with electric mortiser sheet attachment hole (31c).
4. a kind of two-bit triplet switch electromagnetic valve according to claim 3, it is characterized in that: described electromagnetic coil assembly is provided with front shroud (51) near valve seat (41) side, it is provided with back shroud (52) away from valve seat (41) side.
5. a kind of two-bit triplet switch electromagnetic valve according to claim 4, is characterized in that: be provided with pad (6) between described front shroud (51) and the end face of described valve seat (41).
6. a kind of two-bit triplet switch electromagnetic valve according to claim 5, it is characterized in that: described back shroud (52) and described static iron core (44) fix, described back shroud (52) offers injecting hole (52a), the outer wall of described static iron core (44) offers injection slot (44b).
7. a kind of two-bit triplet switch electromagnetic valve according to claim 6, it is characterized in that: described valve body (2) central shaft is to offering center hole (2b), this center hole (2b) communicates with described pressure oil import (21), and described valve seat (41) is assemblied in this center hole (2b).
8. a kind of two-bit triplet switch electromagnetic valve according to claim 7, is characterized in that: described pressure oil import (21) place is provided with filter screen (21a).
9. a kind of two-bit triplet switch electromagnetic valve according to claim 8, it is characterized in that: described housing (1) is outside equipped with plastic shell (7), described electric mortiser sheet (33) is arranged on described plastic shell (7).
10. a kind of two-bit triplet switch electromagnetic valve according to claim 9, it is characterized in that: described housing (1) comprises housing body (11) and with described housing body (11) integrated fixing part (12), the diameter of described fixing part (12) is greater than the diameter of described housing body (11), and described housing body (11) is provided with injection moulding intake port (11a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520823847.XU CN205078890U (en) | 2015-10-23 | 2015-10-23 | Two three -way switch solenoid valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520823847.XU CN205078890U (en) | 2015-10-23 | 2015-10-23 | Two three -way switch solenoid valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205078890U true CN205078890U (en) | 2016-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520823847.XU Expired - Fee Related CN205078890U (en) | 2015-10-23 | 2015-10-23 | Two three -way switch solenoid valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205078890U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202251A (en) * | 2015-10-23 | 2015-12-30 | 宁波星宇国均汽车电磁阀有限公司 | Two-position three-way switch electromagnetic valve |
-
2015
- 2015-10-23 CN CN201520823847.XU patent/CN205078890U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202251A (en) * | 2015-10-23 | 2015-12-30 | 宁波星宇国均汽车电磁阀有限公司 | Two-position three-way switch electromagnetic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160309 Termination date: 20211023 |