CN104747707A - Tractor creeper gear operation mechanism - Google Patents
Tractor creeper gear operation mechanism Download PDFInfo
- Publication number
- CN104747707A CN104747707A CN201510135531.6A CN201510135531A CN104747707A CN 104747707 A CN104747707 A CN 104747707A CN 201510135531 A CN201510135531 A CN 201510135531A CN 104747707 A CN104747707 A CN 104747707A
- Authority
- CN
- China
- Prior art keywords
- piston
- creeper gear
- rocker arm
- arm shaft
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- 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
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
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- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/3023—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure
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- 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
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
- F16H2061/308—Modular hydraulic shift units, i.e. preassembled actuator units for select and shift movements adapted for being mounted on transmission casing
-
- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/3003—Band brake actuating mechanisms
- F16H2063/3006—Band brake actuating mechanisms moved by a non-mechanical force
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Control Of Transmission Device (AREA)
Abstract
A tractor creeper gear operation mechanism comprises a locating nail, a rocker arm shaft sealing ring, a rocker arm shaft, a rocker arm, a retaining ring, a creeper gear shell, a bolt, a spring fixing nail, a spring, a steel ball, a shifting fork, a shifting block, a pin, a sliding rod, a piston limiting nail, a piston, piston sealing rings, piston plug sealing rings, piston plugs, a left sensor and a right sensor. The rocker arm shaft is installed on the creeper gear shell, the rocker arm shaft sealing ring, the rocker arm and the retaining ring are installed on the rocker arm shaft, the upper end of the rocker arm is inserted in a groove of the piston, and the lower end of the rocker arm is inserted in a groove of the shifting block; the spring fixing nail is installed on a gearbox shell, the spring and the steel ball are installed on the spring fixing nail, the steel ball is pressed by the spring, and the sliding rod is pressed by the steel ball and installed on the gearbox shell. The piston limiting nail, the piston, the piston plug sealing rings and the piston plugs are installed on the creeper gear shell. The piston sealing rings are installed on the two sides of the piston. The left sensor and the right sensor are installed on the piston plugs respectively. The shifting fork and the shifting block are installed on the sliding rod and the shifting fork can axially move.
Description
Technical field
The invention belongs to tractor field, relate to a kind of tractor creeper gear operating mechanism.
Background technique
Along with the development in domestic tractor market, the tractor demand of user to configuration creeper gear function is increasing.At present, in the large power wheel tractor product produced at home, the tractor negligible amounts of configuration creeper gear, the creeper gear that these tractors configure adopts rod member or cable type operating mechanism mostly.Its working principle is: drive the movement of shift fork by rod member or flexible shaft manipulation slide bar, thus the combination realizing creeper gear be separated.This type of mechanism element quantity is many, and assembling work amount is large, and in use needs repeatedly to adjust, otherwise off-gear can be caused, the problem such as not in place of putting into gear.Therefore be necessary the tractor creeper gear mechanism developing a kind of compact structure, reliable operation, handiness, can effectively realize hydraulic control or electrichydraulic control, to meet the usage requirement of tractor user.
Summary of the invention
The object of the present invention is to provide the tractor creeper gear operating mechanism of a kind of compact structure, reliable operation, handiness, can effectively realize hydraulic control or electrichydraulic control, to meet the usage requirement of tractor user.
Technological scheme of the present invention is: tractor creeper gear operating mechanism, comprising: locating pin, pitman arm shaft seal ring, pitman arm shaft, rocking arm, back-up ring, creeper gear housing, bolt, spring fixing nail, spring, steel ball, shift fork, shifting block, pin, slide bar, piston limit nail, piston, piston packing, piston plug seal ring, piston plug, right sensor, left sensor; Pitman arm shaft is arranged on creeper gear housing, carries out axial limiting by locating pin to pitman arm shaft; Pitman arm shaft seal ring, rocking arm and back-up ring are arranged on pitman arm shaft, and back-up ring carries out axial limiting to rocking arm; Rocking arm freely can rotate on pitman arm shaft; Spring fixing nail is arranged on gear box casing, and spring and steel ball are arranged on spring fixing nail, and spring is pressed on steel ball, and steel ball is pressed on slide bar, and slide bar is arranged on gear box casing.
Creeper gear housing is provided with piston limit nail, piston, piston plug seal ring and piston plug; The both sides of piston installed by piston packing; Right sensor, left sensor are arranged on piston plug respectively.
Slide bar is provided with shift fork and shifting block by pin, and shift fork can axially move left and right.
Rocking arm upper end is inserted in the fluting of piston, and rocking arm lower end is inserted in the fluting of shifting block.
Following good effect can be reached after the present invention adopts technique scheme: adopt said mechanism mode, drive path is clear, compact structure, by gear box of tractor power to tractor rear axle transmission, can realize directly gear and creeper gear.Employing piston two-way moves, and produces feedback signal and carrys out the disconnected, logical of hydraulic control oil, can realize hydraulic control or the electrichydraulic control of creeper gear function, simplify the operation type of tractor creeper gear by sensor.Adopt modular design, easy for installation, decrease adjustment link, reduce adjustment labor intensity.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of tractor creeper gear operating mechanism of the present invention;
Fig. 2 is the left TV structure schematic diagram of tractor creeper gear operating mechanism of the present invention;
Fig. 3 is the plan structure schematic diagram of tractor creeper gear operating mechanism of the present invention.
Embodiment
Below by accompanying drawing, the present invention is further illustrated, as shown in Figures 1 to 3, this kind of tractor creeper gear operating mechanism, mainly comprise: locating pin 1, pitman arm shaft seal ring 2, pitman arm shaft 3, Rocker arm 4, back-up ring 5, creeper gear housing 6, bolt 7, spring fixing nail 8, spring 9, steel ball 10, shift fork 11, shifting block 12, pin 13, slide bar 14, piston limit nail 15, piston 16, piston packing 17, piston plug seal ring 18, piston plug 19, right sensor 20, left sensor 21 etc., the part such as engaging sleeve, gear box casing is not illustrated in the drawings.
Piston limit nail 15, piston 16, piston plug seal ring 18 and piston plug 19 are arranged on creeper gear housing 6, and the both sides of piston 16 installed by piston packing 17, and right sensor 20, left sensor 21 are arranged on piston plug 19 respectively.
Locating pin 1 and pitman arm shaft 3 are arranged on creeper gear housing 6, and locating pin 1 pair of pitman arm shaft 3 carries out axial limiting; Pitman arm shaft seal ring 2, Rocker arm 4 and back-up ring 5 is arranged on pitman arm shaft 3, and back-up ring 5 pairs of Rocker arm 4s carry out axial limiting, and Rocker arm 4 freely can rotate on pitman arm shaft 3, and Rocker arm 4 upper end is inserted in the fluting of piston 16, and Rocker arm 4 lower end is inserted in the fluting of shifting block 12.
Slide bar 14 is arranged on gear box casing, can way moving; Shift fork 11 and shifting block 12 are arranged on slide bar 14 by pin 13.
Spring fixing nail 8 is arranged on gear box casing, and spring 9 and steel ball 10 are arranged on spring fixing nail 8, and spring 9 compresses steel ball 10 pairs of slide bars 14 and carries out spacing; Shift fork 11 drives engaging sleeve axially to move left and right, and realizes directly gear and creeper gear.
This tractor creeper gear operating mechanism, is arranged on gear box casing by bolt 7.
Working principle: promote piston 16 way moving by hydraulic oil, piston 16 drives Rocker arm 4 to rotate, and Rocker arm 4 band moving slide-bar 14 moves, and slide bar 14 drives shift fork 11 to move, shift fork 11 drives that engaging sleeve is corresponding to carry out way moving to realize directly keeping off and creeper gear.Disconnected, the logical function of oil circuit control is carried out by the feedback signal of right sensor 20, left sensor 21, thus the hydraulic control that can realize creeper gear function or electrichydraulic control.
Piston 16 is arranged on creeper gear housing, can realize way moving under the promotion of both sides hydraulic oil, follows closely 15 enforcement way movings spacing by the piston limit be arranged on creeper gear housing.Right sensor 20, the left sensor 21 of two ends installation produce by contact piston 16 disconnected, the logical function that feedback signal carrys out hydraulic control oil, thus the hydraulic control realized creeper gear function or electrichydraulic control.
Pitman arm shaft 3 is fixed on creeper gear housing by locating pin 1, and Rocker arm 4 adopts by both sides that back-up ring 5 is spacing is fixed on pitman arm shaft 3, can rotate on pitman arm shaft 3.Rocker arm 4 upper end is inserted in the fluting of piston 16, and Rocker arm 4 lower end is inserted in the fluting of shifting block 12.
Slide bar 14 is arranged on gear box casing, can way moving, shifting block 12 and shift fork 11 are fixed on slide bar 14 by pin 13, and spring fixing nail 8 is arranged on gear box casing, spring 9 is arranged on spring fixing nail 8, comes to implement location to slide bar 14 by steel ball 10; Shift fork 11 realizes directly gear and creeper gear by driving engaging sleeve axially to move left and right.
Tractor creeper gear operating mechanism bang path is as follows:
Direct gear: hydraulic oil passes through oil inlet P
benter B chamber, promote piston 16 and move to the left, piston 16 promotes Rocker arm 4 and moves to the left, and Rocker arm 4 rotates around pitman arm shaft 3, and Rocker arm 4 promotes shifting block 12 and moves to the right with slide bar 14 and shift fork 11.Shift fork 11 drives engaging sleeve mobile realization directly gear to the right.Left sensor 21 touches the piston 16 be moved to the left, and produces the cut-out that feedback signal realizes hydraulic oil immediately, can realize hydraulic control or the electrichydraulic control of creeper gear function.
Creeper gear: hydraulic oil passes through oil inlet P
aenter A chamber, promote piston 16 and move to the right, piston 16 promotes Rocker arm 4 and moves to the right, and Rocker arm 4 rotates around pitman arm shaft 3, and Rocker arm 4 promotes shifting block 12 and moves to the left with slide bar 14 and shift fork 11.Shift fork 11 drive engaging sleeve to the left movement realize creeper gear.Right sensor 20 touches the piston 16 moved right, and produces the cut-out that feedback signal realizes hydraulic oil immediately, can realize hydraulic control or the electrichydraulic control of creeper gear function.
Claims (4)
1. tractor creeper gear operating mechanism, comprising: locating pin (1), pitman arm shaft seal ring (2), pitman arm shaft (3), rocking arm (4), back-up ring (5), creeper gear housing (6), bolt (7), spring fixing nail (8), spring (9), steel ball (10), shift fork (11), shifting block (12), pin (13), slide bar (14), piston limit nail (15), piston (16), piston packing (17), piston plug seal ring (18), piston plug (19), right sensor (20), left sensor (21); It is characterized in that: pitman arm shaft (3) is arranged on creeper gear housing (6), carries out axial limiting by locating pin (1) to pitman arm shaft (3); Pitman arm shaft seal ring (2), rocking arm (4) and back-up ring (5) are arranged on pitman arm shaft (3), and back-up ring (5) carries out axial limiting to rocking arm (4); Rocking arm (4) above freely can rotate at pitman arm shaft (3); Spring fixing nail (8) is arranged on gear box casing, spring (9) and steel ball (10) are arranged on spring fixing nail (8), spring (9) is pressed on steel ball (10), and steel ball (10) is pressed on slide bar (14), and slide bar (14) is arranged on gear box casing.
2. tractor creeper gear operating mechanism according to claim 1, is characterized in that: on creeper gear housing (6), be provided with piston limit nail (15), piston (16), piston plug seal ring (18) and piston plug (19); The both sides of piston (16) installed by piston packing (17); Right sensor (20), left sensor (21) are arranged on piston plug (19) respectively.
3. tractor creeper gear operating mechanism according to claim 1, is characterized in that: slide bar (14) is provided with shift fork (11) and shifting block (12) by pin (13), and shift fork (11) can axially move left and right.
4. tractor creeper gear operating mechanism according to claim 1, it is characterized in that: rocking arm (4) upper end is inserted in the fluting of piston (16), rocking arm (4) lower end is inserted in the fluting of shifting block (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510135531.6A CN104747707A (en) | 2015-03-26 | 2015-03-26 | Tractor creeper gear operation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510135531.6A CN104747707A (en) | 2015-03-26 | 2015-03-26 | Tractor creeper gear operation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104747707A true CN104747707A (en) | 2015-07-01 |
Family
ID=53587815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510135531.6A Pending CN104747707A (en) | 2015-03-26 | 2015-03-26 | Tractor creeper gear operation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104747707A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780765A (en) * | 2021-01-13 | 2021-05-11 | 合升智能技术(无锡)有限公司 | Parallel piston combined gear shifting controller |
| CN114017537A (en) * | 2022-01-05 | 2022-02-08 | 渤天新比隆(天津)科技有限公司 | Double-track actuating mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4580457A (en) * | 1983-06-29 | 1986-04-08 | Isuzu Motors, Ltd. | Manual or hydraulic gearshifting apparatus |
| EP1596105A1 (en) * | 2004-05-13 | 2005-11-16 | Scania CV AB | Damper device for a gearbox |
| CN101245850A (en) * | 2008-03-20 | 2008-08-20 | 重庆大学 | Mechanical automatic speed-changing direct-shifting hydraulic actuator of heavy vehicle |
| JP2009127639A (en) * | 2007-11-19 | 2009-06-11 | Aisin Ai Co Ltd | Shift mechanism of gear transmission |
| CN104279316A (en) * | 2014-10-29 | 2015-01-14 | 苏州大方特种车股份有限公司 | Gearbox and automatic gear shifting mechanism of gearbox |
| CN204553816U (en) * | 2015-03-26 | 2015-08-12 | 第一拖拉机股份有限公司 | Tractor creeper gear operating mechanism |
-
2015
- 2015-03-26 CN CN201510135531.6A patent/CN104747707A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4580457A (en) * | 1983-06-29 | 1986-04-08 | Isuzu Motors, Ltd. | Manual or hydraulic gearshifting apparatus |
| EP1596105A1 (en) * | 2004-05-13 | 2005-11-16 | Scania CV AB | Damper device for a gearbox |
| JP2009127639A (en) * | 2007-11-19 | 2009-06-11 | Aisin Ai Co Ltd | Shift mechanism of gear transmission |
| CN101245850A (en) * | 2008-03-20 | 2008-08-20 | 重庆大学 | Mechanical automatic speed-changing direct-shifting hydraulic actuator of heavy vehicle |
| CN104279316A (en) * | 2014-10-29 | 2015-01-14 | 苏州大方特种车股份有限公司 | Gearbox and automatic gear shifting mechanism of gearbox |
| CN204553816U (en) * | 2015-03-26 | 2015-08-12 | 第一拖拉机股份有限公司 | Tractor creeper gear operating mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780765A (en) * | 2021-01-13 | 2021-05-11 | 合升智能技术(无锡)有限公司 | Parallel piston combined gear shifting controller |
| CN114017537A (en) * | 2022-01-05 | 2022-02-08 | 渤天新比隆(天津)科技有限公司 | Double-track actuating mechanism |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150701 |
|
| WD01 | Invention patent application deemed withdrawn after publication |