CN201916475U - Full-power gear-shifting gear box operating valve for loader - Google Patents
Full-power gear-shifting gear box operating valve for loader Download PDFInfo
- Publication number
- CN201916475U CN201916475U CN201120021149XU CN201120021149U CN201916475U CN 201916475 U CN201916475 U CN 201916475U CN 201120021149X U CN201120021149X U CN 201120021149XU CN 201120021149 U CN201120021149 U CN 201120021149U CN 201916475 U CN201916475 U CN 201916475U
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- gear
- valve
- valve rod
- speed
- valve stem
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Abstract
The utility model discloses a full-power gear-shifting gear box operating valve for a loader, which comprises a valve body, a cover plate and a bottom plate. A direction valve stem, a speed valve stem and a gas valve are arranged in the valve body, and the gas valve consists of a gas valve stem, a brake valve spool and return springs. The full-power gear-shifting gear box operating valve for a loader is characterized in that a forward gear, a neutral gear and a reverse gear are arranged on the direction valve stem, a gear I, a gear II, a gear III and a gear IV are disposed on the speed valve stem, logical valve spools which correspond to the direction valve stem and the speed valve stem are arranged between the direction valve stem and the speed valve stem and are provided with the return springs, and an output oil circuit matches with a gear box. The full-power gear-shifting gear box operating valve for a loader resolves the technical problem that required operation does not conform to a clutch arranged on the gear box in the prior art, is applicable to full-power gear-shifting gear boxes of loaders, and realizes full-power gear shifting.
Description
Technical fieldThe utility model belongs to the loader technical field, relates to a kind of loader full power shift transmission control valve.
Background techniqueAt present, the most of power shfit that adopts of loading machine gearbox gear shift combines with hand shift, and high low speed shift fork gear shift need stop during gear shift, has influenced the convenience and the flexibility of operation.Establish high speed, low speed, preceding I, preceding II, back I, six clutches of back II in the full power shift transmission, but vehicle need be realized preceding I, preceding II, preceding III, preceding IV, back I, back II, back III, back IV, the neutral gear manipulation of totally 9 gears, and the set clutch of required manipulation and gearbox is not inconsistent.
Summary of the inventionThe purpose of this utility model is to solve the technical problem that prior art exists required manipulation and the set clutch of gearbox not to be inconsistent, and provides a kind of loader with full power shift transmission control valve, to overcome the deficiencies in the prior art.
The utility model loader full power shift transmission control valve, comprise valve body, cover plate and base plate, be provided with direction valve rod, the gentle valve of speed valve rod in the valve body, air valve is made of air valve stem, brake spool and Returnning spring, its main points are that the direction valve rod is provided with and advances, neutral gear, retreats three gears, the speed valve rod is provided with I, II, four gears of III, IV, be provided with between direction valve rod and the speed valve rod and direction valve rod and the corresponding logic spool of speed valve rod, the logic spool is provided with Returnning spring, and output circuit and gearbox are complementary.
Described speed valve rod is fixed on the valve body by interior fixing pin and the stop screw of setting position steel ball, retaining spring.
During the utility model operation, pulling direction valve rod is selected to advance or retreat oil circuit; Pulling speed valve rod is selected each gear oil circuit, after the conversion of logic spool, selects to advance or retreat oil circuit through the direction valve rod again, I, preceding II, preceding III, preceding IV, back I, back II, back III, back IV gearshift before realizing; Can link with brake by air valve, air valve stem, brake spool, realize that brake is out of supply.The utility model has solved the technical problem that prior art exists required manipulation and the set clutch of gearbox not to be inconsistent, and is applicable to loader full power shift transmission, realizes the full power gear shift.
Description of drawingsFig. 1 is the utility model structural representation;
Fig. 2 is A-A side's view among Fig. 1;
Fig. 3 is B-B side's view of Fig. 2 medium velocity valve rod.
1. valve bodies, 2. cover plates, 3. base plates, 4. direction valve rods, 5. logic spools, 6. Returnning springs, 7. speed valve rods, 8. Returnning springs 9 among the figure, brake spool 10. air valve stems 11. air valves 12. stop screws 13. retaining springs 14. locking balls
EmbodimentWith reference to Fig. 1, Fig. 2 and Fig. 3, the utility model comprises valve body 1, cover plate 2 and base plate 3, be provided with direction valve rod 4, speed valve rod 7 and air valve 11 in the valve body 1, air valve 11 is made of air valve stem 10, brake spool 9 and Returnning spring 8, direction valve rod 4 is provided with and advances, neutral gear, retreats three gears, speed valve rod 7 is provided with I, II, four gears of III, IV, be provided with between direction valve rod 4 and the speed valve rod 7 and direction valve rod and the corresponding logic spool 5 of speed valve rod, logic spool 5 is provided with Returnning spring 6, and output circuit and gearbox are complementary; Speed valve rod 7 is fixed on the valve body 1 by interior fixing pin and the stop screw 12 of setting position steel ball 14, retaining spring 13.
Working principle of the present utility model is with reference to Fig. 2, and pressure oil promotes air valve stem 10, brake spool 9 cut-out oil circuits through brake spool 9 when pressurized air enters air valve 11, make gearbox out of supply; Behind the releasing of brake by Returnning spring 8 with air valve stem 10, brake spool 9 pushed home.Pressure oil is selected I, II, III, IV shelves through speed valve bar 7 after through brake spool 9, pressure oil through 5 conversion of logic spool after, direction valve rod 4 is selected to advance, neutral gear or retreat.Each gear pressure oil enters gearbox gear clutch by the output oil port on the cover plate 2, finishes gear-change operation.
Claims (2)
1. a loader is with full power shift transmission control valve, comprise valve body, cover plate and base plate, be provided with direction valve rod, the gentle valve of speed valve rod in the valve body, air valve is made of air valve stem, brake spool and Returnning spring, it is characterized in that the direction valve rod is provided with advances, neutral gear, retreats three gears, the speed valve rod is provided with I, II, four gears of III, IV, be provided with between direction valve rod and the speed valve rod and direction valve rod and the corresponding logic spool of speed valve rod, the logic spool is provided with Returnning spring, and output circuit and gearbox are complementary.
2. loader according to claim 1 is characterized in that with full power shift transmission control valve described speed valve rod is fixed on the valve body by interior fixing pin and the stop screw of setting position steel ball, retaining spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120021149XU CN201916475U (en) | 2011-01-24 | 2011-01-24 | Full-power gear-shifting gear box operating valve for loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120021149XU CN201916475U (en) | 2011-01-24 | 2011-01-24 | Full-power gear-shifting gear box operating valve for loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201916475U true CN201916475U (en) | 2011-08-03 |
Family
ID=44416272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120021149XU Expired - Fee Related CN201916475U (en) | 2011-01-24 | 2011-01-24 | Full-power gear-shifting gear box operating valve for loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201916475U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390372A (en) * | 2011-11-07 | 2012-03-28 | 中国煤炭科工集团太原研究院 | Hydraulic control power cutting device of down-hole trackless rubber-tyred car |
| CN105889574A (en) * | 2016-06-13 | 2016-08-24 | 杭州前进齿轮箱集团股份有限公司 | Operating valve for double-pull rod type gearbox with cutting function |
-
2011
- 2011-01-24 CN CN201120021149XU patent/CN201916475U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390372A (en) * | 2011-11-07 | 2012-03-28 | 中国煤炭科工集团太原研究院 | Hydraulic control power cutting device of down-hole trackless rubber-tyred car |
| CN105889574A (en) * | 2016-06-13 | 2016-08-24 | 杭州前进齿轮箱集团股份有限公司 | Operating valve for double-pull rod type gearbox with cutting function |
| CN105889574B (en) * | 2016-06-13 | 2018-04-03 | 杭州前进齿轮箱集团股份有限公司 | A kind of gearbox of dual-pulling rod type with cutting function manipulation valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG TANGONG HYDRAULIC TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHANDONG TANGONG HYDRAULIC PARTS MANUFACTURE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 276100, No. 6, Tan Tan Road, Tancheng Economic Development Zone, Linyi, Shandong Patentee after: SHANDONG TANGONG HYDRAULIC TECHNOLOGY CO., LTD. Address before: 276100, No. 6, Tan Tan Road, Tancheng Economic Development Zone, Linyi, Shandong Patentee before: Shandong Tangong Hydraulic Parts Manufacturing Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20160124 |
|
| EXPY | Termination of patent right or utility model |