CN105020386A - Cut-off type variable speed control preselector valve - Google Patents
Cut-off type variable speed control preselector valve Download PDFInfo
- Publication number
- CN105020386A CN105020386A CN201510481751.4A CN201510481751A CN105020386A CN 105020386 A CN105020386 A CN 105020386A CN 201510481751 A CN201510481751 A CN 201510481751A CN 105020386 A CN105020386 A CN 105020386A
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- Prior art keywords
- valve
- valve chamber
- preselector
- cut
- described valve
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- 239000003292 glue Substances 0.000 claims description 25
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012636 effector Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- 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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
- F16H61/0006—Electronic control units for transmission control, e.g. connectors, casings or circuit boards
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention relates to a cut-off type variable speed control preselector valve which comprises a valve body, a high-low gear diverter switch, a valve element assembly, a reset spring and a rubber plug. A valve chamber, an exhaust channel and a working gas channel are longitudinally arranged in the valve body. A valve bush is arranged in the valve chamber. The valve chamber is divided into an upper valve chamber body and a lower valve chamber body through the valve bush. The rubber plug is arranged in the lower valve chamber body. The reset spring is arranged on the lower surface of the rubber plug. The valve element assembly is arranged in the upper valve chamber body. One end of the high-low gear diverter switch stretches into the upper valve chamber body and is connected with the upper end of the valve element assembly, and the other end of the high-low gear diverter switch stretches out of the valve body. According to the cut-off type variable speed control preselector valve, the valve bush and the valve element assembly are arranged in the valve chamber, the high-low gear diverter switch is arranged, and therefore the problem that a sliding plate type variable speed preselector valve in the prior art is poor in sealing performance and reliability is solved.
Description
Technical field
The present invention relates to vehicle speed variation Effector technical field, refer to a kind of cut-off type gear change preselector valve especially.
Background technique
Current heavy-duty commercial vehicle gear controller major part is Manual mechanical gear change, and driver needs by operating grip ball, is delivered to gearbox through gear shifter assembly, shifting flexible axle, realizes shifting operation.
Along with to the power character of heavy-duty commercial vehicle and the higher requirement of Economy, the mechanical gear box major part that current heavy-duty commercial vehicle mates is many gears (6 gear-16 gear), and many gear gearboxes are main-gear box+auxiliary transmission structure substantially.
In order to realize the excellent operation to many gear gearboxes, needing to mate the gear change preselector valve that gas circuit controls to switch main-gear box and pair case quite a lot, realizing gearbox high to low gear and switch.
The gear change preselector valve of existing technology is skateboard structure, and driver, by stirring slide board type high to low gear switch, is promoted by valve rod, makes spring-compressed, by the air-breathing of air be vented by the conversion of high gear to low gear.
The major defect of slide board type gear change preselector valve is: slide board type poor sealing, because the pore on slide plate will rub on O type circle, easily cuts bad O type circle; If have impurity in pressurized air, can stick on slide plate, cause gas leakage.
Summary of the invention
The object of the invention is to propose improvement opportunity scheme to existing gear change preselector valve, effectively can be solved poor sealing and the integrity problem of the gear change preselector valve of existing technology by the technical program.
The present invention is achieved by the following technical solutions:
A kind of cut-off type gear change preselector valve, includes valve body, high to low gear throw over switch, mangetic core assembly, Returnning spring and glue stifled;
Valve chamber, exhaust passage and working gas passage is vertically arranged with in described valve body; Described valve chamber is provided with suction port at the bottom surface of described valve body; Described exhaust passage is provided with relief opening at the bottom surface of described valve body; Described working gas passage is provided with working hole at the bottom surface of described valve body;
Valve pocket is provided with in described valve chamber; Described valve chamber is divided into upper valve chamber and lower valve chamber by described valve pocket;
Described glue is stifled to be arranged in described lower valve chamber; One end of described Returnning spring is fixed on going to the bottom of described valve chamber, and the other end is fixed on the stifled bottom surface of described glue;
Described mangetic core assembly is arranged in described upper valve chamber; One end of described high to low gear throw over switch is stretched in described upper valve chamber and is connected with described mangetic core assembly upper end, and the other end stretches out described valve body and described shell;
Described mangetic core assembly includes spool, valve core spring and seal ring; Described seal ring is arranged at the upper end of described valve pocket and seals described valve pocket; The movable upper surface movable contact blocked up with described glue through described seal ring and the lower end of described spool of described spool; Described valve core spring is placed on the upper end of described spool, and the upper surface of described seal ring is fixed in the lower end of described valve core spring, and described high to low gear throw over switch is fixed in the upper end of described valve core spring;
The sidewall and relative valve body of described valve pocket are provided with the first through hole; Described first through hole and described working gas channel connection;
On described valve chamber sidewall on be provided with the second through hole; Described second through hole is communicated with described exhaust passage;
Described spool is the tubular-shaped structures of upper end closed, and the top of described spool sidewall is provided with third through-hole.
Described valve body is integral type structure.
Pneumatic spigot joint is provided with on described suction port He on described outlet pipe.
Described pneumatic spigot joint is unit loading type jointing.
Also include shell; Described valve body is fixed in the cavity of described shell.
The outer surface of described shell is provided with skid resistant course.
The lower end of described valve pocket is provided with valve pocket sealed mouth; The external diameter of described valve pocket sealed mouth is less than the internal diameter of described valve chamber, and is less than the stifled diameter of described glue; The upper surface that described glue blocks up coordinates with movable contact of described valve pocket sealed mouth.
The external diameter that the nearly described glue of described spool blocks up one end is less than the external diameter of the other end.
The invention has the beneficial effects as follows:
The application by arranging valve pocket and mangetic core assembly in valve chamber, and passes through the setting of high to low gear throw over switch, solves the problem of existing technology slide board type gear change preselector valve poor sealing and reliability; And the valve body of the application is integral type structure, sturdy and durable.
Accompanying drawing explanation
Fig. 1 is gear change preselector valve structural representation of the present invention;
Fig. 2 is gear change preselector valve longitudinal sectional view of the present invention;
Fig. 3 is another longitudinal sectional view of gear change preselector valve of the present invention;
Fig. 4 is the A place enlarged view of Fig. 3.
Description of reference numerals
1 shell, 2 valve bodies, 3 high to low gear throw over switches, 4 suction ports, 5 relief openings, 6 mounting holes, 7 skid resistant courses, 8 fixing bolts, 9 working holes, 21 valve chambers, 22 exhaust passages, 23 working gas passages, 24 valve pockets.
Embodiment
Describe technological scheme of the present invention in detail by the following examples, following embodiment is only exemplary, only can be used for explaining and technological scheme of the present invention being described, and can not be interpreted as being the restriction to technical solution of the present invention.
The invention provides a kind of cut-off type gear change preselector valve, as shown in Figures 1 to 4, include shell 1 and gear change preselector valve; Described manipulation preselector valve is fixed on by fixing bolt 8 in the cavity of described shell; In this application, the material of shell is high molecule plastic, and be also provided with skid resistant course 7 outward at shell, in this application, skid resistant course is positioned at the outer surface of shell upper end driver's hand griping position, and skid resistant course is the flexible materials such as corium, both can increase the travelling comfort of manipulation, can avoid again skidding, guarantee the Security handled further.
It is stifled that described manipulation preselector valve includes valve body 2, high to low gear throw over switch 3, mangetic core assembly, Returnning spring and glue.
In the present embodiment, valve body 2 is an overall structure, is cast member in this application.The valve body of integrative-structure adds robustness and the tightness of gear change preselector valve.
Valve chamber 21, exhaust passage 22 and working gas passage 23 is vertically arranged with in described valve body 2; Described valve chamber 21 is provided with suction port 4 at the bottom surface of described valve body; Described exhaust passage 22 is provided with relief opening 5 at the bottom surface of described valve body; Described working gas passage 23 is provided with working hole 9 at the bottom surface of described valve body; Pneumatic spigot joint is provided with on described suction port He on described outlet pipe.Described pneumatic spigot joint is unit loading type jointing.The pneumatic spigot joint of unit loading type jointing herein and the pneumatic spigot joint of suction port and relief opening integrates, and is connected with suction tude and steam outlet pipe respectively.Also be provided with mounting hole 6 at the bottom surface of valve body, connect for same shift.
Valve pocket 24 is provided with in described valve chamber 21; Described valve chamber is divided into upper valve chamber and lower valve chamber by described valve pocket; The lower end of described valve pocket is provided with valve pocket sealed mouth; The external diameter of described valve pocket sealed mouth is less than the internal diameter of described valve chamber, and is less than the stifled diameter of described glue; The upper surface that described glue blocks up coordinates with movable contact of described valve pocket sealed mouth.
Described glue is stifled to be arranged in described lower valve chamber; One end of described Returnning spring is fixed on going to the bottom of described valve chamber, and the other end is fixed on the stifled bottom surface of described glue;
Described mangetic core assembly is arranged in described upper valve chamber; One end of described high to low gear throw over switch is stretched in described upper valve chamber and is connected with described mangetic core assembly upper end, and the other end stretches out described valve body and described shell; In this application, high to low gear throw over switch adopts cam-deflection formula and rotatingshaft to design for integral type, and good airproof performance, uses reliably, even if having impurity in pressurized air, valve also can not be made stuck or leak; Speed-changing lever feel when high and low shift is changed can be made slim and graceful, and gear is clear, without clamping stagnation sense, improves working life and the reliability of switch, guarantees running safety.
Described mangetic core assembly includes spool, valve core spring and seal ring; Described seal ring is arranged at the upper end of described valve pocket and seals described valve pocket; The movable upper surface movable contact blocked up with described glue through described seal ring and the lower end of described spool of described spool; Described valve core spring is placed on the upper end of described spool, and the upper surface of described seal ring is fixed in the lower end of described valve core spring, and described gear shift button is fixed in the upper end of described valve core spring;
The sidewall and relative valve body of described valve pocket are provided with the first through hole; Described first through hole and described working gas channel connection;
On described valve chamber sidewall on be provided with the second through hole; Described second through hole is communicated with described exhaust passage;
Described spool is the tubular-shaped structures of upper end closed, and the top of described spool sidewall is provided with third through-hole.The external diameter that the nearly described glue of described spool blocks up one end is less than the external diameter of the other end.
Working principle of the present invention is:
Pressurized air enters into lower valve chamber by suction port, meanwhile, because Returnning spring process stretched condition, and the upper surface stifled by glue and valve pocket sealed mouth press seal.When high to low gear throw over switch is arranged at low gear state, spool moves downward, and the lower end of spool acts on the stifled upper surface of glue and compression reseting spring, glue is blocked up and moves down, pressurized air enters in valve pocket, and enters into working gas passage by the first through hole.
When high to low gear throw over switch is arranged at high gear state, spool moves upward, now, Returnning spring promotes the stifled sealing valve pocket sealed mouth that moves upward of glue, now the lower ending opening of spool is communicated with valve pocket, and the gas in working gas passage enters into upper valve chamber along pipe and third through-hole in the first through hole, spool and enters into discharging directly into atmosphere behind exhaust passage by the second through hole again.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (8)
1. a cut-off type gear change preselector valve, is characterized in that: include valve body, high to low gear throw over switch, mangetic core assembly, Returnning spring and glue stifled;
Valve chamber, exhaust passage and working gas passage is vertically arranged with in described valve body; Described valve chamber is provided with suction port at the bottom surface of described valve body; Described exhaust passage is provided with relief opening at the bottom surface of described valve body; Described working gas passage is provided with working hole at the bottom surface of described valve body;
Valve pocket is provided with in described valve chamber; Described valve chamber is divided into upper valve chamber and lower valve chamber by described valve pocket;
Described glue is stifled to be arranged in described lower valve chamber; One end of described Returnning spring is fixed on going to the bottom of described valve chamber, and the other end is fixed on the stifled bottom surface of described glue;
Described mangetic core assembly is arranged in described upper valve chamber; One end of described high to low gear throw over switch is stretched in described upper valve chamber and is connected with described mangetic core assembly upper end, and the other end stretches out described valve body;
Described mangetic core assembly includes spool, valve core spring and seal ring; Described seal ring is arranged at the upper end of described valve pocket and seals described valve pocket; Described spool is movable through described seal ring, and the upper surface movable contact that the lower end of described spool and described glue block up; Described valve core spring is placed on the upper end of described spool, and the upper surface of described seal ring is fixed in the lower end of described valve core spring, and described high to low gear throw over switch is fixed in the upper end of described valve core spring;
The sidewall and relative valve body of described valve pocket are provided with the first through hole; Described first through hole and described working gas channel connection;
On described valve chamber sidewall on be provided with the second through hole; Described second through hole is communicated with described exhaust passage;
Described spool is the tubular-shaped structures of upper end closed, and the top of described spool sidewall is provided with third through-hole.
2. cut-off type gear change preselector valve according to claim 1, is characterized in that: described valve body is integral type structure.
3. cut-off type gear change preselector valve according to claim 1, is characterized in that: on described suction port He on described outlet pipe, be provided with pneumatic spigot joint.
4. cut-off type gear change preselector valve according to claim 3, is characterized in that: described pneumatic spigot joint is unit loading type jointing.
5. cut-off type gear change preselector valve according to claim 1, is characterized in that: also include shell; Described valve body is fixed in the cavity of described shell.
6. cut-off type gear change preselector valve according to claim 5, is characterized in that: the outer surface of described shell is provided with skid resistant course.
7. cut-off type gear change preselector valve according to claim 1, is characterized in that: the lower end of described valve pocket is provided with valve pocket sealed mouth; The external diameter of described valve pocket sealed mouth is less than the internal diameter of described valve chamber, and is less than the stifled diameter of described glue; The upper surface that described glue blocks up coordinates with movable contact of described valve pocket sealed mouth.
8. cut-off type gear change preselector valve according to claim 1, is characterized in that: the external diameter that the nearly described glue of described spool blocks up one end is less than the external diameter of the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510481751.4A CN105020386A (en) | 2015-08-03 | 2015-08-03 | Cut-off type variable speed control preselector valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510481751.4A CN105020386A (en) | 2015-08-03 | 2015-08-03 | Cut-off type variable speed control preselector valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105020386A true CN105020386A (en) | 2015-11-04 |
Family
ID=54410577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510481751.4A Pending CN105020386A (en) | 2015-08-03 | 2015-08-03 | Cut-off type variable speed control preselector valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105020386A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806510A (en) * | 2017-11-17 | 2018-03-16 | 克诺尔商用车系统（重庆）有限公司 | Exhaust gas collection switch valve |
| CN112590544A (en) * | 2020-12-14 | 2021-04-02 | 武汉格罗夫氢能汽车有限公司 | Fuel cell hydrogen energy automobile electronic gear shifting device capable of recognizing fingerprint unlocking |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5797462A (en) * | 1994-10-10 | 1998-08-25 | Atlas Copco Tools Ab | Pneumatic power tool |
| CN202023911U (en) * | 2010-11-30 | 2011-11-02 | 中国重汽集团济南动力有限公司 | Gearshift handle equipped with switching valve of high gear and low gear |
| CN203627759U (en) * | 2013-12-18 | 2014-06-04 | 威伯科汽车控制系统（中国）有限公司 | Integrated automobile gear shifting handle |
| CN103912713A (en) * | 2012-12-31 | 2014-07-09 | 西安航天远征流体控制股份有限公司 | Pre-selection valve |
| CN104613169A (en) * | 2013-11-05 | 2015-05-13 | 中国重汽集团济南动力有限公司 | Novel integral gear shift handle mechanism |
-
2015
- 2015-08-03 CN CN201510481751.4A patent/CN105020386A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5797462A (en) * | 1994-10-10 | 1998-08-25 | Atlas Copco Tools Ab | Pneumatic power tool |
| CN202023911U (en) * | 2010-11-30 | 2011-11-02 | 中国重汽集团济南动力有限公司 | Gearshift handle equipped with switching valve of high gear and low gear |
| CN103912713A (en) * | 2012-12-31 | 2014-07-09 | 西安航天远征流体控制股份有限公司 | Pre-selection valve |
| CN104613169A (en) * | 2013-11-05 | 2015-05-13 | 中国重汽集团济南动力有限公司 | Novel integral gear shift handle mechanism |
| CN203627759U (en) * | 2013-12-18 | 2014-06-04 | 威伯科汽车控制系统（中国）有限公司 | Integrated automobile gear shifting handle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806510A (en) * | 2017-11-17 | 2018-03-16 | 克诺尔商用车系统（重庆）有限公司 | Exhaust gas collection switch valve |
| CN112590544A (en) * | 2020-12-14 | 2021-04-02 | 武汉格罗夫氢能汽车有限公司 | Fuel cell hydrogen energy automobile electronic gear shifting device capable of recognizing fingerprint unlocking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151104 |
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| RJ01 | Rejection of invention patent application after publication |