CN203686012U - 12+12-gear transmission case of tractor - Google Patents
12+12-gear transmission case of tractor Download PDFInfo
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- CN203686012U CN203686012U CN201320712022.1U CN201320712022U CN203686012U CN 203686012 U CN203686012 U CN 203686012U CN 201320712022 U CN201320712022 U CN 201320712022U CN 203686012 U CN203686012 U CN 203686012U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of tractors, in particular to a 12+12-gear transmission case of a tractor. The 12+12-gear transmission case of the tractor comprises a transmission case body, a main speed changing mechanism and a secondary speed changing mechanism, and further comprises a planet reversing mechanism, wherein the main speed changing mechanism and the secondary speed changing mechanism are sequentially arranged in the transmission case body, the main speed changing mechanism can output four gears, the secondary speed changing mechanism can carry out adjustment on a rotation speed output by the main speed changing mechanism in high, middle and low grades, the planetary reversing mechanism can carry out reversing adjustment on the power output by the transmission case and is arranged outside the transmission case body, and the planetary reversing mechanism carries out power transmission with the main speed changing mechanism and the secondary speed changing mechanism through gear engagement. According to the 12+12-gear transmission case of the tractor, which is provided by the utility model, the mechanism of the transmission case is effectively simplified, the size of a speed changing box is reduced, and the production mounting efficiency is improved; the transmission case of the tractor outputs 12 forward gears and 12 backward gears, so that the working efficiency of the tractor is improved, and the requirements of the tractor in various special geographic environments and special operations are widened.
Description
Technical field
The utility model relates to tractor technical field, specifically a kind of 12+12 gear tractor transmission case.
Background technique
At present, the tractor of a lot of types is in order to realize itself many gear speed-changings and break-in function, in transmission case, be provided with speed change and the change gear combination of many gears, thereby realize speed change and the break-in function of tractor, cause that transmission case internal gear is too much, gear is complicated, make transmission case body too huge, production and assembly trouble, the labour cost that increases, and the gear providing can not meet the demand of various distinguishingly conditions and special operation completely, limit the use of tractor, caused its operating efficiency reduction, condition bad adaptability.
Model utility content
Technical problem to be solved in the utility model be to provide a kind of mechanism simple, improve production and assembly efficiency, can meet various distinguishingly conditions and special operation demand, efficiency is high, condition strong adaptability, the better 12+12 gear tractor of using effect transmission case.
The technological scheme that the utility model solves the problems of the technologies described above is as follows: a kind of 12+12 gear tractor transmission case, comprise transmission case body, be successively set on the main speed-changing mechanism of exportable four gears in described transmission case body and the rotating speed of exporting in main speed-changing mechanism can be carried out to height, in, the secondary gear of low adjustment, also comprising can be to the commutate planet changement of adjustment of the power of transmission case output, described planet changement is arranged on outside described transmission case body, described planet changement arranges by gear and engages and described main speed-changing mechanism, between described secondary gear, carry out power transmission, described planet changement comprises the sun gear being arranged on outside transmission case body, be arranged on the planetary wheel carrier on described transmission case body outside, engage and be fixed on the planetary pinion on described planetary wheel carrier with described sun gear, engage and be fixed on the reverse planetary pinion on described planetary wheel carrier with described planetary pinion, described sun gear is fixedly connected with described secondary gear, described reverse planetary pinion engages with the gear ring being fixed on described transmission case body, in described planetary wheel carrier, be provided with the cover that articulates that can articulate under gearshift control, described articulate to put be provided with and described planetary wheel carrier, the intermeshing interior external splines circle of sun gear, the internal spline that articulates cover described in when engage a gear advances engages with sun gear, the external splines that articulates cover described in when engage a gear retreats engages with the internal spline on planetary wheel carrier.
On the basis of technique scheme, the utility model can also do following improvement.
Further, described main speed-changing mechanism comprises input shaft and jack shaft, on described input shaft, be provided with successively one grade of driving gear, second gear driving gear, third speed drive gear and fourth gear driving gear that suit arranges, the three fourth gear engagement toothholders that are fixedly installed, on described jack shaft, cover is equiped with the first speed driven gear engaging with one grade of driving gear successively, the second gear driven gear engaging with second gear driving gear and the second gear engagement toothholder being fixedly installed, the third gear driven gear engaging with third speed drive gear being fixedly installed, the fourth gear driven gear engaging with fourth gear driving gear, on described jack shaft, be also provided with and can under gearshift mechanism control, engage with a described second gear second gear engaging sleeve that toothholder is corresponding respectively, on described input shaft, be also provided with the three fourth gear engaging sleeves corresponding with described three fourth gear engagement toothholders, a described second gear engaging sleeve can select to articulate one grade or second gear, described three fourth gear engaging sleeves can select to articulate third gear or fourth gear, described fourth gear driving gear can be by the corresponding rotating speed of the direct output main speed-changing mechanism of articulating of gearshift to secondary speed change jack shaft.
Further, described secondary gear comprises the secondary speed change jack shaft concentric with input shaft, the output shaft concentric with jack shaft, on described secondary speed change jack shaft, cover is equiped with middle-grade driving gear successively, be fixed with low-grade driving gear, on described output shaft, cover is equiped with the middle-grade driven gear engaging sleeve engaging with described middle-grade driving gear successively, with the low-grade driven gear of described low-grade driving gear engagement be fixed with the high and low shift being connected with described high and low shift and engage toothholder, described jack shaft end is fixed with and can articulates high-grade top grade and articulate spline, on described secondary speed change jack shaft, be also provided with the middle-grade engaging sleeve that can connect middle-grade driving gear and low-grade driving gear under gearshift control, described middle-grade driven gear engaging sleeve can connect top grade and articulate spline and low-grade driven gear under gearshift control.
Further, the output terminal that described output shaft is positioned at outside transmission case body is fixedly connected with described sun gear.
The beneficial effects of the utility model are: the utility model is effectively simplified the mechanism of transmission case and reduced the volume of gearbox, improve and produce installation efficiency, because the secondary gear that adopts 3 rotating speeds of main speed-changing mechanism and output that can export 4 rotating speeds is connected cooperation with planet changement, can make 12 forward gearss of tractor transmission case output and 12 retreat shelves, in the situation that transmission case volume is less, the gear of tractor does not reduce and does not make gear too complicated, improve the working efficiency of tractor, widen the demand of tractor in various distinguishingly conditions and special operation.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of 12+12 gear tractor of the utility model transmission case.
In accompanying drawing, the list of parts of each label representative is as follows:
1, input shaft, 2, one grade of driving gear, 3, jack shaft, 3a, secondary speed change jack shaft, 4, first speed driven gear, 5, a second gear engagement toothholder, 5a, a second gear engaging sleeve, 6, second gear driving gear, 7, second gear driven gear, 8, third speed drive gear, 9, third gear driven gear; 10, three fourth gear engagements toothholders, 10a, three fourth gear engaging sleeves, 11, fourth gear driving gear, 12, fourth gear driven gear, 13, middle-grade driving gear, 14, top grade articulates spline, 15, middle-grade driven gear engaging sleeve, 15a, high and low shift engagement toothholder, 16, middle-grade engaging sleeve, 17, low-grade driving gear, 18, low-grade driven gear, 19, sun gear, 20, planetary pinion, 21, reverse planetary pinion, 22, gear ring, 23, planetary wheel carrier, 24, output shaft, 25, articulate cover, 26, transmission case body.
Embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, a kind of 12+12 gear tractor transmission case described in the utility model, comprise transmission case body 26, be successively set on the main speed-changing mechanism of interior exportable four gears of described transmission case body 26 and the rotating speed of exporting in main speed-changing mechanism can be carried out to height, in, the secondary gear of low adjustment, also comprising can be to the commutate planet changement of adjustment of the power of transmission case output, described planet changement is arranged on outside described transmission case body 26, described planet changement arranges by gear and engages and described main speed-changing mechanism, between described secondary gear, carry out power transmission, described planet changement comprises and is arranged on the sun gear 19 being positioned at outside transmission case body 26, be arranged on the planetary wheel carrier 23 on described transmission case body 26 outsides, engage and be fixed on the planetary pinion 20 on described planetary wheel carrier 23 with described sun gear 19, engage and be fixed on the reverse planetary pinion 21 on described planetary wheel carrier 23 with described planetary pinion 20, described sun gear 19 is fixedly connected with described secondary gear, described reverse planetary pinion 21 engages with the gear ring 22 being fixed on described transmission case body 26, in described planetary wheel carrier 23, be provided with can under gearshift control, articulate forward gears or retreat articulating of shelves and overlap 25, the described cover 25 that articulates is provided with and described planetary wheel carrier 23, the intermeshing interior external splines of sun gear 19, the internal spline that articulates cover 25 described in when engage a gear advances engages with sun gear 19, the external splines that articulates cover 25 described in when engage a gear retreats engages with the internal spline on planetary wheel carrier 23.
Described main speed-changing mechanism comprises input shaft 1 and jack shaft 3, on described input shaft 1, be provided with successively one grade of driving gear 2, second gear driving gear 6, third speed drive gear 8 and fourth gear driving gear 11 that suit arranges, the three fourth gear engagement toothholders 10 that are fixedly installed, on described jack shaft 3, cover is equiped with the first speed driven gear 4 engaging with one grade of driving gear 2 successively, the second gear driven gear 7 engaging with second gear driving gear 6 and the second gear engagement toothholder 5 being fixedly installed, the third gear driven gear 9 engaging with third speed drive gear 8 being fixedly installed, the fourth gear driven gear 12 engaging with fourth gear driving gear 11, on described jack shaft 3, be also provided with and can under gearshift mechanism control, engage with a described second gear second gear engaging sleeve 5a that toothholder 5 is corresponding respectively, on described input shaft 1, be also provided with and the three fourth gear engaging sleeve 10as corresponding with described three fourth gear engagement toothholders 10.A described second gear engaging sleeve 5a can select to articulate one grade or second gear, described three fourth gear engaging sleeve 10a can select to articulate third gear or fourth gear, and described fourth gear driving gear 11 can be by the corresponding rotating speed of the direct output main speed-changing mechanism of articulating of gearshift to secondary speed change jack shaft 3a.
Described secondary gear comprises the secondary speed change jack shaft 3a concentric with input shaft 1, the output shaft 24 concentric with jack shaft 3, on described secondary speed change jack shaft 3a, cover is equiped with middle-grade driving gear 13 successively, be fixed with low-grade driving gear 17, on described output shaft 24, cover is equiped with the middle-grade driven gear engaging sleeve 15 engaging with described middle-grade driving gear 13 successively, the low-grade driven gear 18 engaging with described low-grade driving gear 17 and be fixed with the high and low shift being connected with described high and low shift and engage toothholder 15a, described jack shaft 3 ends are fixed with and can articulate high-grade top grade and articulate spline 14, on described secondary speed change jack shaft 3a, be also provided with the middle-grade engaging sleeve 16 that can connect middle-grade driving gear 13 and low-grade driving gear 17 under gearshift control, described middle-grade driven gear engaging sleeve 15 can connect top grade and articulate spline 14 and low-grade driven gear 18 under gearshift control.
The output terminal that described output shaft is positioned at outside transmission case body is fixedly connected with described sun gear 19.
Working principle of the present utility model is:
Advance high 1 grade: 1 → mono-grade of driving gear 2 → first speed driven gear 4 → jack shaft 3 → top grade of input shaft articulates spline 14 → output shaft 24 → sun gear 19 → articulate cover 25.
Advance high 2 grades: input shaft 1 → second gear driving gear 6 → second gear driven gear 7 → jack shaft 3 → top grade articulates spline 14 → output shaft 24 → sun gear 19 → articulate cover 25.
Advance high 3 grades: input shaft 1 → third speed drive gear 8 → third gear driven gear 9 → jack shaft 3 → top grade articulates spline 14 → output shaft 24 → sun gear 19 → articulate cover 25.
Advance high 4 grades: input shaft 1 → fourth gear driving gear 11 → fourth gear driven gear 12 → jack shaft 3 → top grade articulates spline 14 → output shaft 24 → sun gear 19 → articulate cover 25.
In advancing 1 grade: 1 → mono-grade of driving gear 2 → first speed driven gear 4 → jack shaft 3 → fourth gear driven gear 12 → fourth gear driving gear 11 → secondary speed change jack shaft 3a → middle-grade engaging sleeve 16 → middle-grade driven gear engaging sleeve 15 → output shaft 24 → sun gear 19 of input shaft → articulate cover 25.
In advancing 2 grades: input shaft 1 → second gear driving gear 6 → second gear driven gear 7 → jack shaft 3 → fourth gear driven gear 12 → fourth gear driving gear 11 → secondary speed change jack shaft 3a → middle-grade engaging sleeve 16 → middle-grade driven gear engaging sleeve 15 → output shaft 24 → sun gear 19 → articulate cover 25.
In advancing 3 grades: input shaft 1 → third speed drive gear 8 → third gear driven gear 9 → jack shaft 3 → fourth gear driven gear 12 → fourth gear driving gear 11 → secondary speed change jack shaft 3a → middle-grade engaging sleeve 16 → middle-grade driven gear engaging sleeve 15 → output shaft 24 → sun gear 19 → articulate cover 25.
In advancing 4 grades: input shaft 1 → fourth gear driving gear 11 → secondary speed change jack shaft 3a → middle-grade engaging sleeve 16 → middle-grade driven gear engaging sleeve 15 → output shaft 24 → sun gear 19 → articulate cover 25.
Advance low 1 grade: 1 → mono-grade of driving gear 2 → first speed driven gear 4 → jack shaft 3 → fourth gear driven gear 12 → fourth gear driving gear 11 → secondary speed change jack shaft 3a → low-grade driving gear 17 → low-grade driven gear 18 → output shaft 24 → sun gear 19 of input shaft → articulate and overlap 25.
Advance low 2 grades: input shaft 1 → second gear driving gear 6 → second gear driven gear 7 → jack shaft 3 → fourth gear driven gear 12 → fourth gear driving gear 11 → secondary speed change jack shaft 3a → low-grade driving gear 17 → low-grade driven gear 18 → output shaft 24 → sun gear 19 → articulate and overlap 25.
Advance low 3 grades: input shaft 1 → third speed drive gear 8 → third gear driven gear 9 → jack shaft 3 → fourth gear driven gear 12 → fourth gear driving gear 11 → secondary speed change jack shaft 3a → low-grade driving gear 17 → low-grade driven gear 18 → output shaft 24 → sun gear 19 → articulate and overlap 25.
Advance low 4 grades: input shaft 1 → fourth gear driving gear 11 → secondary speed change jack shaft 3a → low-grade driving gear 17 → low-grade driven gear 18 → output shaft 24 → sun gear 19 → articulate and overlap 25.
Retreat high 1 grade: 1 → mono-grade of driving gear 2 → first speed driven gear 4 → jack shaft 3 → top grade of input shaft articulates spline 14 → output shaft 24 → sun gear 19 → planetary pinion 20 → oppositely planetary pinion 21, gear ring 22 → planetary wheel carrier 23 → articulate and overlap 25.
Retreat high 2 grades: input shaft 1 → second gear driving gear 6 → second gear driven gear 7 → jack shaft 3 → top grade articulates spline 14 → output shaft 24 → sun gear 19 → planetary pinion 20 → oppositely planetary pinion 21, gear ring 22 → planetary wheel carrier 23 → articulate and overlap 25.
Retreat high 3 grades: input shaft 1 → third speed drive gear 8 → third gear driven gear 9 → jack shaft 3 → top grade articulates spline 14 → output shaft 24 → sun gear 19 → planetary pinion 20 → oppositely planetary pinion 21, gear ring 22 → planetary wheel carrier 23 → articulate and overlap 25.
Retreat high 4 grades: input shaft 1 → fourth gear driving gear 11 → fourth gear driven gear 12 → jack shaft 03 → top grade articulates spline 14 → output shaft 24 → sun gear 19 → planetary pinion 20 → oppositely planetary pinion 21, gear ring 22 → planetary wheel carrier 23 → articulate and overlap 25.
In retreating 1 grade: the planetary pinion 21 of 1 → mono-grade of driving gear 2 → first speed driven gear 4 → jack shaft 3 → fourth gear driven gear 12 → fourth gear driving gear 11 → secondary speed change jack shaft 3a → middle-grade driving gear 13 → middle-grade driven gear engaging sleeve 15 → output shaft 24 → sun gear 19 → planetary pinion 20 of input shaft → oppositely, gear ring 22 → planetary wheel carrier 23 → articulate cover 25.
In retreating 2 grades: the planetary pinion 21 of input shaft 1 → second gear driving gear 6 → second gear driven gear 7 → jack shaft 3 → fourth gear driven gear 12 → fourth gear driving gear 11 → secondary speed change jack shaft 3a → middle-grade driving gear 13 → middle-grade driven gear engaging sleeve 15 → output shaft 24 → sun gear 19 → planetary pinion 20 → oppositely, gear ring 22 → planetary wheel carrier 23 → articulate cover 25.
In retreating 3 grades: the planetary pinion 21 of input shaft 1 → third speed drive gear 8 → third gear driven gear 9 → jack shaft 3 → fourth gear driven gear 12 → fourth gear driving gear 11 → secondary speed change jack shaft 3a → middle-grade driving gear 13 → middle-grade driven gear engaging sleeve 15 → output shaft 24 → sun gear 19 → planetary pinion 20 → oppositely, gear ring 22 → planetary wheel carrier 23 → articulate cover 25.
In retreating 4 grades: the planetary pinion 21 of input shaft 1 → fourth gear driving gear 11 → secondary speed change jack shaft 3a → middle-grade driving gear 13 → middle-grade driven gear engaging sleeve 15 → output shaft 24 → sun gear 19 → planetary pinion 20 → oppositely, gear ring 22 → planetary wheel carrier 23 → articulate cover 25.
Retreat low 1 grade: 1 → mono-grade of driving gear 2 → first speed driven gear 4 → jack shaft 3 → fourth gear driven gear 12 → fourth gear driving gear 11 → secondary speed change jack shaft 3a → low-grade driving gear 17 → low-grade driven gear 18 → output shaft 24 → sun gear 19 → planetary pinion 20 of input shaft → oppositely planetary pinion 21, gear ring 22 → planetary wheel carrier 23 → articulate and overlap 25.
Retreat low 2 grades: input shaft 1 → second gear driving gear 6 → second gear driven gear 7 → jack shaft 3 → fourth gear driven gear 12 → fourth gear driving gear 11 → secondary speed change jack shaft 3a → low-grade driving gear 17 → low-grade driven gear 18 → output shaft 24 → sun gear 19 → planetary pinion 20 → oppositely planetary pinion 21, gear ring 22 → planetary wheel carrier 23 → articulate and overlap 25.
Retreat low 3 grades: input shaft 1 → third speed drive gear 8 → third gear driven gear 9 → jack shaft 3 → fourth gear driven gear 12 → fourth gear driving gear 11 → secondary speed change jack shaft 3a → low-grade driving gear 17 → low-grade driven gear 18 → output shaft 24 → sun gear 19 → planetary pinion 20 → oppositely planetary pinion 21, gear ring 22 → planetary wheel carrier 23 → articulate and overlap 25.
Retreat low 4 grades: input shaft 1 → fourth gear driving gear 11 → secondary speed change jack shaft 3a → low-grade driving gear 17 → low-grade driven gear 18 → output shaft 24 → sun gear 19 → planetary pinion 20 → oppositely planetary pinion 21, gear ring 22 → planetary wheel carrier 23 → articulate and overlap 25.
Described 12+12 gear tractor transmission case has been realized advance gear and 12 of 12, tractor by less Gear combination and has been retreated gear, can meet the various ground condition of tractor and the demand of operation.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. a 12+12 gear tractor transmission case, it is characterized in that, comprise transmission case body, be successively set on the main speed-changing mechanism of exportable four gears in described transmission case body and the rotating speed of exporting in main speed-changing mechanism can be carried out to height, in, the secondary gear of low three rank adjustings, also comprising can be to the commutate planet changement of adjustment of the power of transmission case output, described planet changement is arranged on outside described transmission case body, described planet changement arranges by gear and engages and described main speed-changing mechanism, between described secondary gear, carry out power transmission, described planet changement comprises the sun gear being arranged on outside transmission case body, be arranged on the planetary wheel carrier on described transmission case body outside, engage and be fixed on the planetary pinion on described planetary wheel carrier with described sun gear, engage and be fixed on the reverse planetary pinion on described planetary wheel carrier with described planetary pinion, described sun gear is fixedly connected with described secondary gear, described reverse planetary pinion engages with the gear ring being fixed on described transmission case body, in described planetary wheel carrier, be provided with the cover that articulates that can articulate under gearshift control, described articulate to put be provided with and described planetary wheel carrier, the intermeshing interior external splines circle of sun gear, the internal spline that articulates cover described in when engage a gear advances engages with sun gear, the external splines that articulates cover described in when engage a gear retreats engages with the internal spline on planetary wheel carrier.
2. a kind of 12+12 gear tractor transmission case according to claim 1, it is characterized in that, described main speed-changing mechanism comprises input shaft and jack shaft, on described input shaft, be provided with successively one grade of driving gear, second gear driving gear, third speed drive gear and fourth gear driving gear that suit arranges, the three fourth gear engagement toothholders that are fixedly installed, on described jack shaft, cover is equiped with the first speed driven gear engaging with one grade of driving gear successively, the second gear driven gear engaging with second gear driving gear and the second gear engagement toothholder being fixedly installed, the third gear driven gear engaging with third speed drive gear being fixedly installed, the fourth gear driven gear engaging with fourth gear driving gear, on described jack shaft, be also provided with and can under gearshift mechanism control, engage with a described second gear second gear engaging sleeve that toothholder is corresponding respectively, on described input shaft, be also provided with the three fourth gear engaging sleeves corresponding with described three fourth gear engagement toothholders, a described second gear engaging sleeve can select to articulate one grade or second gear, described three fourth gear engaging sleeves can select to articulate third gear or fourth gear, described fourth gear driving gear can be by the corresponding rotating speed of the direct output main speed-changing mechanism of articulating of gearshift to secondary speed change jack shaft.
3. a kind of 12+12 gear tractor transmission case according to claim 2, it is characterized in that, described secondary gear comprises the secondary speed change jack shaft concentric with input shaft, the output shaft concentric with jack shaft, on described secondary speed change jack shaft, cover is equiped with middle-grade driving gear successively, be fixed with low-grade driving gear, on described output shaft, cover is equiped with the middle-grade driven gear engaging sleeve engaging with described middle-grade driving gear successively, with the low-grade driven gear of described low-grade driving gear engagement be fixed with the high and low shift being connected with described high and low shift and engage toothholder, described jack shaft end is fixed with and can articulates high-grade top grade and articulate spline, on described secondary speed change jack shaft, be also provided with the middle-grade engaging sleeve that can connect middle-grade driving gear and low-grade driving gear under gearshift control, described middle-grade driven gear engaging sleeve can connect top grade and articulate spline and low-grade driven gear under gearshift control.
4. a kind of 12+12 gear tractor transmission case according to claim 1 and 2, is characterized in that, the output terminal that described output shaft is positioned at outside transmission case body is fixedly connected with described sun gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320712022.1U CN203686012U (en) | 2013-11-11 | 2013-11-11 | 12+12-gear transmission case of tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320712022.1U CN203686012U (en) | 2013-11-11 | 2013-11-11 | 12+12-gear transmission case of tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203686012U true CN203686012U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320712022.1U Expired - Lifetime CN203686012U (en) | 2013-11-11 | 2013-11-11 | 12+12-gear transmission case of tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203686012U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864058B (en) * | 2015-05-29 | 2017-07-25 | 山东东汽农业装备有限公司 | A kind of 12+3 grades of gearbox |
| CN108194582A (en) * | 2018-02-06 | 2018-06-22 | 江苏沃得农业机械有限公司 | Middle horsepower gearbox transmission device of tractor |
| CN109899461A (en) * | 2019-03-28 | 2019-06-18 | 第一拖拉机股份有限公司 | Middle low power is with drive commutation and with the driving device for tractor of step gear shifting |
| CN110145590A (en) * | 2019-04-30 | 2019-08-20 | 长沙桑铼特农业机械设备有限公司 | A kind of caterpillar tractor variable speed drive and its drive method |
-
2013
- 2013-11-11 CN CN201320712022.1U patent/CN203686012U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864058B (en) * | 2015-05-29 | 2017-07-25 | 山东东汽农业装备有限公司 | A kind of 12+3 grades of gearbox |
| CN108194582A (en) * | 2018-02-06 | 2018-06-22 | 江苏沃得农业机械有限公司 | Middle horsepower gearbox transmission device of tractor |
| CN109899461A (en) * | 2019-03-28 | 2019-06-18 | 第一拖拉机股份有限公司 | Middle low power is with drive commutation and with the driving device for tractor of step gear shifting |
| CN109899461B (en) * | 2019-03-28 | 2024-01-26 | 第一拖拉机股份有限公司 | Tractor transmission device with power reversing and synchronous gear shifting for medium and small power |
| CN110145590A (en) * | 2019-04-30 | 2019-08-20 | 长沙桑铼特农业机械设备有限公司 | A kind of caterpillar tractor variable speed drive and its drive method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 265200 No. 55 Haihe Road, Laiyang, Shandong, Yantai Patentee after: SHANDONG DONGQI AGRICULTURAL EQUIPMENT Co.,Ltd. Address before: 261400 No. 55 Haihe Road, Laiyang, Shandong, Yantai Patentee before: YANTAI DONGQI AGRICULTURAL EQUIPMENT Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20140702 |
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| CX01 | Expiry of patent term |