CN203686094U - Gear control device for steering wheel tractor - Google Patents
Gear control device for steering wheel tractor Download PDFInfo
- Publication number
- CN203686094U CN203686094U CN201320773569.2U CN201320773569U CN203686094U CN 203686094 U CN203686094 U CN 203686094U CN 201320773569 U CN201320773569 U CN 201320773569U CN 203686094 U CN203686094 U CN 203686094U
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- China
- Prior art keywords
- main
- gear
- shift lever
- flexible shaft
- flexible axle
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Abstract
The utility model discloses a gear control device for a steering wheel tractor, which comprises a main position-changing flexible shaft, an auxiliary variable-speed flexible shaft, a main gear-shifting flexible shaft, a flexible shaft bracket, a gearbox cover, an auxiliary variable-speed shift fork rocker arm, an auxiliary variable-speed flexible shaft rocker arm, a main position-changing flexible shaft rocker arm, a return spring, a main position-changing pull rod, a main gear lever, a guide sleeve, a main gear-shifting flexible shaft rocker arm, a pin shaft, a connecting bolt, a fixing plate, a main variable-speed lever seat, a I gear-reverse gear shift fork, an II gear-III gear shift fork, an auxiliary variable-speed rocker arm, an auxiliary variable-speed shift fork, a limiting lever and a limiting plate. A sliding type gear control device is mounted on the gearbox cover. The device has as simple and compact structure, is convenient and sensitive to operate, and not only reduces the cost, but also is reliable to engage a gear. The steering wheel type tractor gear control device is especially suitable for steering wheel type tractors, and has a very wide prospect.
Description
Technical field
The utility model relates to agricultural automobile, especially a kind of steering wheel type tractor gear control device.
Background technique
At present, steering wheel type tractor is the important means of transportation in rural area, although the gear control device of its forerunner's chassis speed changing box is gone through improvement for many years, its control mechanism of gear shifting is still similar with the control mechanism of gear shifting of " workers and peasants-12 " type hand tractor, because its control mechanism of gear shifting is changed the mode that still adopts the direct gear shift of long-armed stiff rod, making tractor gear operating lever in the time turning to follow armrest seat swings, bring very big inconvenience to manipulation, simultaneously, because armrest seat puts in operator cabin and swings, shelves need reserved armrest seat swing space and to make to drive indoor environment very severe before operator cabin, driver-operated comfort level is poor, labor intensity is large, potential safety hazard is large, and long-armed stiff rod gear changing mode easily distortion in long-term using process, cause random shelves, phenomenon out of supply, for addressing the above problem, people pass through long-term practice and grope, adopt flexible shaft line to realize the mechanism of gear shift, as: the flexible cord gear engaging device that the patent No. is 201220155193.4, can reach necessary requirement.Realize oiling but need to change former gear shift cover tank filler sleeve position, and structure is more complicated.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of steering wheel type tractor gear control device simple in structure.
For solving the problems of the technologies described above, basic conception of the present utility model is: adopt former flexible shaft line to handle gear control device, utilize main shift lever mounting hole on former gear shift cover that sliding type gear control device is installed.
As the technological scheme that realizes the utility model basic conception, it comprises main transformer position flexible axle, secondary speed changing flexible shaft, main transformer shelves flexible axle, flexible shaft bracket, gear shift cover, secondary gear shift fork pivoted arm, secondary speed changing flexible shaft pivoted arm, main transformer position flexible axle pivoted arm, return spring, main transformer position pull bar, main shift lever, guide sleeve, main transformer shelves flexible axle pivoted arm, bearing pin, connecting bolt, fixed plate, main shift lever seat, I-reverse speed fork, II-III shelves fork, secondary speed change pivoted arm, secondary gear shift fork, position-limited lever and limiting board, described limiting board is welded on main shift lever seat below, described fixed plate is arranged on limiting board below and fixes with bolt, described main shift lever seat is arranged on the mounting hole of gear shift cover and fixes with bolt, described main shift lever is loaded onto return spring through in the hole of main shift lever seat, one end is connected with connecting bolt and uses nut check, in I-reverse speed fork in the bulb insertion gearbox of the other end or the fork pockets of II-III shelves fork, described position-limited lever is connected with the circular hole of main shift lever and with nut check and insert in the gear groove in limiting board, described guide sleeve and soldered the connecing of main transformer shelves flexible axle steering arm electricity consumption, circular hole on main transformer shelves flexible axle steering arm is connected with the bulb on main transformer shelves flexible axle, and uses nut check.Axially and between guide sleeve being connected by slide rail of described main shift lever.
Slide rail on described main shift lever has 2 at least, and the chute on the guide sleeve matching with the slide rail on main shift lever also has 2 at least.
Slide rail on described main shift lever is groove or tongue, and the chute on the guide sleeve matching with the slide rail on main shift lever is tongue or groove.
The beneficial effects of the utility model are: simple and compact for structure, operate light sensitively, and not only reduce costs, and engage a gear is reliable.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is gear shift cover assembly plan view of the present utility model.
Fig. 2 is gear shift cover assembly plan view of the present utility model.
Fig. 3 is gear shift cover assembly sectional view of the present utility model.
1. main transformer position flexible axles in figure, 2. secondary speed changing flexible shaft, 3. main transformer shelves flexible axle, 4. flexible shaft bracket, 5. guide sleeve, 6. main transformer position pull bar, 7. main transformer position flexible axle pivoted arm, 8. secondary gear shift fork pivoted arm, 9. secondary speed changing flexible shaft pivoted arm, 10. gear shift cover, 11. secondary speed change pivoted arms, 12. secondary gear shift forks, 13. fixed plates, 14. connecting bolts, 15. bearing pins, 16. main shift levers, 17. position-limited levers, 18. main shift lever seats, 19. I-reverse gear fork, 20. II-III shelves fork, 21. main shift lever seat mounting holes, 22. secondary speed change pivoted arm mounting holes, 23. gearboxes, 24. limiting boards.
Embodiment
Consult Fig. 1, Fig. 2, Fig. 3, high and low shelves operating mechanism is made up of secondary gear shift fork pivoted arm 6, secondary speed changing flexible shaft pivoted arm 7, secondary speed change pivoted arm 21, secondary gear shift fork 22.Secondary gear shift fork 22 is arranged in gearbox.Insert in the fork pockets of secondary gear shift fork 22 secondary speed change pivoted arm 21 one end, and its square toes part, through the mounting hole of gear shift cover 5, is connected with the square hole of secondary gear shift fork pivoted arm 6, then uses nut check.In the time pushing away, draw secondary speed changing flexible shaft pivoted arm 7, promote secondary gear shift fork 22 displacements thereby can make secondary gear shift fork pivoted arm 6 drive secondary speed change pivoted arm 21 to rotate, realize the switching of high and low shelves.
Main selector gear is formed the also switching of main transformer speed gear by main transformer position flexible axle pivoted arm 8, return spring 9, main transformer position pull bar 10, main shift lever 11, guide sleeve 12, main transformer shelves flexible axle pivoted arm 13, bearing pin 14, connecting bolt 15, fixed plate 16, limiting board 17, main shift lever seat 18, position-limited lever 23.Main shift lever seat 18 is arranged in the mounting hole of gear shift cover 5, fixes with bolt.Main shift lever 11 is through the endoporus of main shift lever seat 18 and the endoporus of guide sleeve 12, is connected and uses nut check, the bulb end of main shift lever 11 to insert in the fork pockets of I-reverse gear fork 19 in gearbox or II-III shelves fork 20 with connecting bolt 15.Axially and between guide sleeve 12 being connected by slide rail of main shift lever 11.Slide rail on main shift lever 11 has 2 at least, and the chute on the guide sleeve 12 matching with the slide rail on main shift lever 11 also has 2 at least.Slide rail on main shift lever 11 is groove or tongue, and the chute on the guide sleeve 12 matching with the slide rail on main shift lever 11 is tongue or groove.Bearing pin 14 passes the circular hole of connecting bolt 15, and is connected to each other with main transformer position pull bar 10 between main transformer position flexible axle pivoted arm 8.Circular hole on main transformer position flexible axle pivoted arm 8 is connected with the bulb of main transformer position flexible axle 1 and uses nut check.Main transformer shelves flexible axle pivoted arm 13 is welded on guide sleeve 12, and the circular hole on main transformer shelves flexible axle pivoted arm 13 is connected with the bulb of main transformer shelves flexible axle 3 and uses nut check.Limiting board 17 is welded on main shift lever seat 18 belows.Fixed plate 16 is arranged on limiting board 17 belows and fixes with bolt, can prevent that guide sleeve 12 from moving axially along main shift lever 11.Position-limited lever 23 is fixed on main shift lever 11 and uses nut check.Return spring 9 is installed on main shift lever 11, improves control stability.
Its nut check carrying of secondary speed changing flexible shaft 2 use is in the corresponding aperture of flexible shaft bracket 4, its movable end one end is connected with the circular hole of secondary speed changing flexible shaft pivoted arm 7 and uses nut check, the other end puts in operator cabin and is connected with secondary shift, when pushing away, while drawing secondary shift, thereby secondary speed changing flexible shaft 2 drives secondary speed changing flexible shaft pivoted arm 7 and secondary gear shift fork pivoted arm 6 to swing, secondary speed change pivoted arm 21 being rotated promotes secondary gear shift fork 22 displacements, realizes the switching of high and low shelves.
Its nut check carrying of flexible axle 1 use of main transformer position is in the corresponding aperture of flexible shaft bracket seam 4, and its movable end one end is connected with the circular hole of main transformer position flexible axle pivoted arm 8 and uses nut check, the other end to put in operator cabin and is connected with the shift selection arm on main shift; Its nut check carrying of main transformer shelves flexible axle 3 use is in the corresponding aperture of flexible shaft bracket 4, its movable end one end is connected with the main transformer shelves flexible axle pivoted arm circular hole of guide sleeve 12 and uses nut check, the other end to put in operator cabin and is connected with the engage a gear arm on main shift.
Because the unique design of the shift selection arm on main shift and engage a gear arm can make when the main shift of left and right swing, main transformer position flexible axle 1 works and main transformer shelves flexible axle 3 is inoperative, when the main shift of forward and backward push-and-pull, main transformer shelves flexible axle 3 works and main transformer position flexible axle 1 is inoperative.When operation, first swing to the left or to the right that main shift works main transformer position flexible axle 1 to drive main transformer position flexible axle pivoted arm 8 and main transformer position pull bar 10 swings and drive main shift lever 11 to move vertically, it is switched between I-reverse gear fork 19 and II-III shelves fork 20, after switching puts in place immediately before, rear push-and-pull main transformer speed operating handle works main transformer shelves flexible axle 3 to drive main transformer shelves flexible axle pivoted arm 13 to swing, thereby drive guide sleeve 12 and main shift lever 11 to swing, can hang up I, II, III and reverse gear, mix again aforementioned height, low-grade, can realize (3+1) × 2 kind of gear selects, i.e. 6 forward gearss and 2 reverse gears.
Claims (3)
1. a steering wheel type tractor gear control device, it comprises main transformer position flexible axle (1), secondary speed changing flexible shaft (2), main transformer shelves flexible axle (3), flexible shaft bracket (4), gear shift cover (5), secondary gear shift fork pivoted arm (6), secondary speed changing flexible shaft pivoted arm (7), main transformer position flexible axle pivoted arm (8), return spring (9), main transformer position pull bar (10), main shift lever (11), guide sleeve (12), main transformer shelves flexible axle pivoted arm (13), bearing pin (14), connecting bolt (15), fixed plate (16), main shift lever seat (18), I-reverse speed fork (19), II-III shelves forks (20), secondary speed change pivoted arm (21), secondary gear shift fork (22), position-limited lever (23) and limiting board (17), described limiting board (17) is welded on main shift lever seat (18) below, described fixed plate (16) is arranged on limiting board (17) below and fixes with bolt, described main shift lever seat (18) is arranged on the mounting hole of gear shift cover (5) and fixes with bolt, described main shift lever (11) is loaded onto return spring (9) through in the hole of main shift lever seat (18), one end is connected with connecting bolt (15) and uses nut check, in I-reverse speed fork (19) in the bulb insertion gearbox of the other end or the fork pockets of II-III shelves forks (20), described position-limited lever (23) is connected with the circular hole of main shift lever (11) and with nut check and insert in the gear groove in limiting board (17), described guide sleeve (12) and soldered the connecing of main transformer shelves flexible axle steering arm (13) electricity consumption, circular hole on main transformer shelves flexible axle steering arm (13) is connected with the bulb on main transformer shelves flexible axle (3), and with nut check, it is characterized in that: between the axial and guide sleeve (12) of main shift lever (11), be connected by slide rail.
2. steering wheel type tractor gear control device according to claim 1, is characterized in that: the slide rail on main shift lever (11) has 2 at least, and the chute on the guide sleeve (12) matching with the slide rail on main shift lever (11) also has 2 at least.
3. steering wheel type tractor gear control device according to claim 1, is characterized in that: the slide rail on main shift lever (11) is groove or tongue, and the chute on the guide sleeve (12) matching with the slide rail on main shift lever (11) is tongue or groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320773569.2U CN203686094U (en) | 2013-12-02 | 2013-12-02 | Gear control device for steering wheel tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320773569.2U CN203686094U (en) | 2013-12-02 | 2013-12-02 | Gear control device for steering wheel tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203686094U true CN203686094U (en) | 2014-07-02 |
Family
ID=51007994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320773569.2U Expired - Fee Related CN203686094U (en) | 2013-12-02 | 2013-12-02 | Gear control device for steering wheel tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203686094U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697150A (en) * | 2013-12-02 | 2014-04-02 | 南宁五菱桂花车辆有限公司 | Steering wheel type tractor gear manipulator |
| CN106763718A (en) * | 2016-11-28 | 2017-05-31 | 广西大学 | Tractor gear manipulation device |
| CN114962619A (en) * | 2022-06-28 | 2022-08-30 | 福建盛海智能科技有限公司 | Automatic gearbox based on manual gearbox repacking |
-
2013
- 2013-12-02 CN CN201320773569.2U patent/CN203686094U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697150A (en) * | 2013-12-02 | 2014-04-02 | 南宁五菱桂花车辆有限公司 | Steering wheel type tractor gear manipulator |
| CN106763718A (en) * | 2016-11-28 | 2017-05-31 | 广西大学 | Tractor gear manipulation device |
| CN114962619A (en) * | 2022-06-28 | 2022-08-30 | 福建盛海智能科技有限公司 | Automatic gearbox based on manual gearbox repacking |
| CN114962619B (en) * | 2022-06-28 | 2024-03-29 | 江苏盛海智能科技有限公司 | Automatic gearbox based on manual gearbox repacking |
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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 |
Granted publication date: 20140702 Termination date: 20141202 |
|
| EXPY | Termination of patent right or utility model |