CN203146718U - Power shift gearbox applicable to engineering machine - Google Patents
Power shift gearbox applicable to engineering machine Download PDFInfo
- Publication number
- CN203146718U CN203146718U CN 201320166838 CN201320166838U CN203146718U CN 203146718 U CN203146718 U CN 203146718U CN 201320166838 CN201320166838 CN 201320166838 CN 201320166838 U CN201320166838 U CN 201320166838U CN 203146718 U CN203146718 U CN 203146718U
- Authority
- CN
- China
- Prior art keywords
- gear
- fixed gear
- free
- transmission
- fixed
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Structure Of Transmissions (AREA)
Abstract
The utility model discloses a power shift gearbox applicable to an engineering machine. The power shift gearbox comprises an input shaft and an output shaft. Power transmission between the input shaft and the output shaft is realized through three power transmission units. According to the technical scheme, five transmission shafts are adopted, and the total number of gears in the shafts is 14. The power shift gearbox is simple in structure, the number of gear pairs which are meshed in a transmission mode is small, elements taking part in transmission are few, forward gears output power through the meshing of four pairs of gears, backward gears output power through the meshing of three pairs of gears, and transmission efficiency is high. A double-acting clutch is adopted, the number of the shafts is reduced, and a box body is simple in structure and low in manufacturing cost. At the same time, six forward gears and three backward gears can be used in the gearbox, power use ratio of an engine and acceleration performance of a vehicle are improved, and the power shift gearbox is applicable for being matched with a three-element hydraulic torque converter which is high in transmission efficiency.
Description
Technical field
The utility model relates to a kind of shift transmission, relates to a kind of Powershift transmission that is applicable to engineering machinery specifically, belongs to technical field of engineering machinery.
Background technique
Present engineering machinery as the gearbox of using on loader, grader, road roller, the dumping car, generally has planetary and two kinds of fixed shaft types.Adopt planetary gearbox, complex structure, required precision height, technology capability is relatively poor, manufacture cost is high.Existing fixed axle gearbox, for example number of patent application is that the Chinese utility model patent of " 95196765.7 " discloses the multispeed powershift reversing gear of under load gear shift " a kind of can ", this each grade of speed changer is through two clutches and certain gear pair effect outputting power, advance one grade through six pairs of gear engagement outputting powers, all the other forward gearss are through four pairs of gear engagement outputting powers, backward gear needs 16 of 16 driving gears altogether through five pairs of gear engagement outputting powers; Another part number of patent application discloses " being applicable to the power-shifting transmission of engineering machinery " for the Chinese utility model patent of " 200810044807.X ", the preceding relatively a kind of drive path of this speed changer makes moderate progress, each grade is through two clutches and certain gear pair effect outputting power, forward gears is through four pairs of gear engagement outputting powers, backward gear needs 14 driving gears altogether through five pairs of gear engagement outputting powers.
Above-mentioned two kinds of speed changer driving gears engagement logarithm is many, and it is many to participate in driving parts, and two speed changers all have eight axles, six clutch appliances simultaneously, will cause transmission efficiency to descend, temperature rise is increased, parts depreciation strengthens, makes and the maintenance cost increase.Two speed changers adopt single-acting clutch, have increased the quantity of axle, and the mounting hole quantity of axle increases on the casing, has increased complexity and the difficulty of processing of case, and cost also can strengthen.
Number of patent application is that the Chinese utility model patent of " 201120439772.7 " discloses " engineering machinery hydraulic mechanical transmission box ", the third gear of advancing wherein is long with the five grades of Transmitted chainss that advance, respectively through 8 pairs and 6 pairs of gear engagement outputting powers, engineering machinery particularly higher the falling back one grade of loader utilization ratio also has 5 pairs of gear engagement outputting powers, with the same transmission chain length of above-mentioned two kinds of speed changers, will cause transmission efficiency to descend, temperature rise is increased, parts depreciation strengthens, make and the maintenance cost increase.
The model utility content
Problem to be solved in the utility model is in order to overcome the problem of above-mentioned existence, provides that a kind of transmission efficiency height, cost of production are low, the Powershift transmission that is applicable to engineering machinery of long service life.
In order to address the above problem, the utility model by the following technical solutions:
A kind of Powershift transmission that is applicable to engineering machinery comprises input shaft, output shaft, carries out power transmission by three power transmission units between described input shaft and the output shaft.
Below be the utility model to the further optimization of such scheme:
Described three power transmission units comprise:
First jack shaft is in transmission connection with input shaft;
The 3rd jack shaft is in transmission connection with output shaft;
Second jack shaft is in transmission connection respectively with input shaft, first jack shaft, the 3rd jack shaft.
Further optimize: respectively be provided with two clutches on described first jack shaft, second jack shaft, the 3rd jack shaft.
Further optimize: be fixedly connected with first fixed gear, second fixed gear on the described input shaft; Be fixedly connected with the 7th fixed gear on the described output shaft.
Further optimize: described first jack shaft is provided with:
Second free gear can be meshed with first fixed gear;
First free gear can be meshed with second fixed gear;
The 3rd fixed gear is fixedly mounted between second free gear and first free gear.
Further optimize: two clutches on described first jack shaft comprise:
The third direction clutch is in transmission connection with second free gear;
The first direction clutch is in transmission connection with first free gear.
Further optimize: first free gear and second free gear connect with rolling bearing with first jack shaft respectively.
Further optimize: be provided with successively on described second jack shaft:
The 4th free gear can be meshed with first fixed gear;
The 8th fixed gear often meshes with the 3rd fixed gear;
The 3rd free gear and the 4th fixed gear.
Further optimize: two clutches on described second jack shaft comprise:
The second direction clutch is in transmission connection with the 4th free gear;
The first gear clutch is in transmission connection with the 3rd free gear.
Further optimize: the 3rd free gear and the 4th free gear connect with rolling bearing with second jack shaft respectively.
Further optimize: be provided with successively on described the 3rd jack shaft:
The 5th free gear can be meshed with the 8th fixed gear;
The 5th fixed gear can be meshed with the 3rd free gear;
The 6th free gear can be meshed with the 4th fixed gear;
The 6th fixed gear often meshes with the 7th fixed gear.
Further optimize: two clutches on described the 3rd jack shaft comprise:
The third gear clutch is in transmission connection with the 5th free gear;
The second gear clutch is in transmission connection with the 6th free gear.
Further optimize: the 5th free gear and the 6th free gear connect with rolling bearing with the 3rd jack shaft respectively.
Further optimize: described first fixed gear, second fixed gear, the 3rd fixed gear, the 4th fixed gear, the 5th fixed gear, the 6th fixed gear, the 7th fixed gear, the 8th fixed gear and first free gear, second free gear, the 3rd free gear, the 4th free gear, the 5th free gear, the 6th free gear are thin and tall tooth, contact ratio and overlap ratio
The utility model adopts technique scheme, adopt 5 transmission shafts, gear on each adds up to 14, simple in structure, transmission engaging gear logarithm is few, and it is few to participate in driving parts, and all forward gearss are through four pairs of gear engagement outputting powers, all backward gears are through three pairs of gear engagement outputting powers, transmission efficiency height; Adopt double-action clutch, the quantity of axle is reduced, housing structure is simple, and manufacture cost reduces; Simultaneously, this gearbox can use six forward gearss, three backward gears, has improved the acceleration performance of power utilization and the vehicle of motor, is fit to the higher three element fluid torque converter of coupling transmission efficiency.
All gears of gearbox all use thin and tall tooth, the control gear contact ratio
, gear has two to three pairs of gear teeth meshing transmissions all the time in transmission process, so noise is low, tooth root and flank of tooth intensity increase, the anti-fatigue reliability improves; Powershift transmission of the present utility model is because all using straight-tooth, and all gear shift roller or needle bearings have reduced the bearing play and adjusted requirement, has also made things convenient for the assembling of shaft assembly and disassembles, and adds the external servicing ease that has improved two change assemblies of torque-converters.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Accompanying drawing 1 is the utility model embodiment's structural representation.
Among the figure: the 1-torque-converters; 2-first fixed gear; The 3-input shaft; 4-second fixed gear; 5-first jack shaft; 6-first free gear; 7-first direction clutch; 8-the 3rd free gear; 9-the 4th fixed gear; The 10-first gear clutch; 11-the 6th free gear; 12-the 6th fixed gear; 13-the 3rd jack shaft; The 14-second gear clutch; 15-the 7th fixed gear; The 16-output shaft; 17-the 5th fixed gear; 18-the 5th free gear; 19-third gear clutch; 20-the 8th fixed gear; 21-second jack shaft; 22-second direction clutch; 23-the 4th free gear; 24-the 3rd fixed gear; 25-third direction clutch; 26-second free gear.
Embodiment
Embodiment, as shown in Figure 1, a kind of Powershift transmission that is applicable to engineering machinery comprises input shaft 3, output shaft 16, one end of described input shaft 3 is connected with torque-converters 1, carries out power transmission by three power transmission units between described input shaft 3 and the output shaft 16.Described three power transmission units comprise: first jack shaft 5 is in transmission connection with input shaft 3; The 3rd jack shaft 13 is in transmission connection with output shaft 16; Second jack shaft 21 is in transmission connection respectively with input shaft 3, first jack shaft 5, the 3rd jack shaft 13.
Be fixedly connected with first fixed gear 2, second fixed gear 4 on the described input shaft, be fixedly connected with the 7th fixed gear 15 on the described output shaft.
Respectively be provided with two clutches on described first jack shaft 5, second jack shaft 21, the 3rd jack shaft 13.
Be fixedly connected with first fixed gear 2, second fixed gear 4 on the described input shaft 3; Be fixedly connected with the 7th fixed gear 15 on the described output shaft 16.
Described first jack shaft 5 is provided with: second free gear 26 that can be meshed with first fixed gear 2; First free gear 6 that can be meshed with second fixed gear 4; Be fixedly mounted on the 3rd fixed gear 24 between second free gear 26 and first free gear 6.
Two clutches on described first jack shaft 5 comprise: the third direction clutch 25 that is in transmission connection with second free gear 26 and the first direction clutch 7 that is in transmission connection with first free gear 6.
Second free gear 26 and first free gear 6 connect with first jack shaft, 5 usefulness rolling bearings respectively, and connect or the interruption transmission of power by third direction clutch 25 and first direction clutch 7 respectively.
Be provided with successively on described second jack shaft 21: the 4th free gear 23 that can be meshed with first fixed gear 2; The 8th fixed gear 20 and the 3rd fixed gear 24 often mesh; The 3rd free gear 8; The 4th fixed gear 9.
Two clutches on described second jack shaft 21 comprise: the second direction clutch 22 that is in transmission connection with the 4th free gear 23; The first gear clutch 10 that is in transmission connection with the 3rd free gear 8.
The 4th free gear 23 and the 3rd free gear 8 connect with second jack shaft, 21 usefulness rolling bearings respectively, and connect or the interruption transmission of power by second direction clutch 22 and the first gear clutch 10 respectively.
Be provided with successively on described the 3rd jack shaft 13: the 5th free gear 18 that can be meshed with the 8th fixed gear 20; The 5th fixed gear 17 that can be meshed with the 3rd free gear 8;
The 6th free gear 11 that can be meshed with the 4th fixed gear 9; The 6th fixed gear 12 often meshes with the 7th fixed gear 15.
Two clutches on described the 3rd jack shaft 13 comprise: the third gear clutch 19 that is in transmission connection with the 5th free gear 18; The second gear clutch 14 that is in transmission connection with the 6th free gear 11.
The 5th free gear 18 and first free gear 11 connect with the 3rd jack shaft 13 usefulness rolling bearings respectively, and connect or the interruption transmission of power by third gear clutch 19 and the second gear clutch 14 respectively.
Gear on described first jack shaft 5 and the engagement of the gear on second jack shaft 21 constitute the commutating tooth wheels, and the gear on described second jack shaft 21 and the engagement of the gear on the 3rd jack shaft 13 constitute driving gear set.
Described first fixed gear 2, second fixed gear 4, the 3rd fixed gear 24, the 4th fixed gear 9, the 5th fixed gear 17, the 6th fixed gear 12, the 7th fixed gear 15, the 8th fixed gear 20 and first free gear 6, second free gear 26, the 3rd free gear 8, the 4th free gear 23, the 5th free gear 18, the 6th free gear 11 are thin and tall tooth, contact ratio and overlap ratio
Gearbox of the present utility model has six forward gearss, three backward gears, and its embodiment is as follows:
Advance one grade, by the closed second gear clutch 14 and third direction clutch 25, first fixed gear 2 and 26 engagements of second free gear, the 3rd fixed gear 24 and 20 engagements of the 8th fixed gear, the 4th fixed gear 9 and 11 engagements of the 6th free gear, the 6th fixed gear 12 and 15 engagements of the 7th fixed gear, power drives first fixed gear 2 through input shaft 3, second free gear 26, the 3rd fixed gear 24, the 8th fixed gear 20, the 4th fixed gear 9, the 6th free gear 11, the 6th fixed gear 12, the 7th fixed gear 15 is delivered on the output shaft 16.
Second gear advances, by closed third direction clutch 25 and the first gear clutch 10, first fixed gear 2 and 26 engagements of second free gear, the 3rd fixed gear 24 and 20 engagements of the 8th fixed gear, the 3rd free gear 8 and 17 engagements of the 5th fixed gear, the 6th fixed gear 12 and 15 engagements of the 7th fixed gear, power drives first fixed gear 2 through input shaft 3, second free gear 26, the 3rd fixed gear 24, the 8th fixed gear 20, the 3rd free gear 8, the 5th fixed gear 17, the 6th fixed gear 12, the 7th fixed gear 15 is delivered on the output shaft 16.
The third gear of advancing, by closed first direction clutch 7 and the second gear clutch 14, second fixed gear 4 and 6 engagements of first free gear, the 3rd fixed gear 24 and 20 engagements of the 8th fixed gear, the 4th fixed gear 9 and 11 engagements of the 6th free gear, the 6th fixed gear 12 and 15 engagements of the 7th fixed gear, power drives second fixed gear 4 through input shaft 3, first free gear 6, the 3rd fixed gear 24, the 8th fixed gear 20, the 4th fixed gear 9, the 6th free gear 11, the 6th fixed gear 12, the 7th fixed gear 15 is delivered on the output shaft 16.
The fourth gear of advancing, by closed third direction clutch 25 and third gear clutch 19, first fixed gear 2 and 26 engagements of second free gear, the 8th fixed gear 20 mesh with the 3rd fixed gear 24 and the 5th free gear 18 simultaneously, the 6th fixed gear 12 and 15 engagements of the 7th fixed gear, power drives first fixed gear 2,26 engagements of second free gear, the 8th fixed gear 20, the 3rd fixed gear 24, the 5th free gear 18, the 6th fixed gear 12, the 7th fixed gear 15, is delivered on the output shaft 16 through input shaft 3.
Advance five grades, by closed first direction clutch 7 and the first gear clutch 10, second fixed gear 4 and 6 engagements of first free gear, the 3rd fixed gear 24 and 20 engagements of the 8th fixed gear, the 3rd free gear 8 and 17 engagements of the 5th fixed gear, the 6th fixed gear 12 and 15 engagements of the 7th fixed gear, power drives second fixed gear 4 through input shaft 3,6 engagements of first free gear, the 3rd fixed gear 24, the 8th fixed gear 20, the 3rd free gear 8, the 5th fixed gear 17, the 6th fixed gear 12, the 7th fixed gear 15 is delivered on the output shaft 16.
Advance six grades, by closed first direction clutch 7 and third gear clutch 19, second fixed gear 4 and 6 engagements of first free gear, the 8th fixed gear 20 meshes with the 3rd fixed gear 24 and the 5th free gear 18 simultaneously, the 6th fixed gear 12 and 15 engagements of the 7th fixed gear, power is delivered on the output shaft 16 through input shaft 3 drives second fixed gear 4, first free gear 6, the 8th fixed gear 20, the 3rd fixed gear 24, the 5th free gear 18, the 6th fixed gear 12, the 7th fixed gear 15.
Fall back one grade, by closed second direction clutch 22 and the second gear clutch 14, first fixed gear 2 and 23 engagements of the 4th free gear, the 4th fixed gear 9 and 11 engagements of the 6th free gear, the 6th fixed gear 12 and 15 engagements of the 7th fixed gear, power is delivered on the output shaft 16 through input shaft 3 drives first fixed gear 2, the 4th free gear 23, the 4th fixed gear 9, the 6th free gear 11, the 6th fixed gear 12, the 7th fixed gear 15.
Second gear falls back, by closed second direction clutch 22 and the first gear clutch 10, first fixed gear 2 and 23 engagements of the 4th free gear, the 3rd free gear 8 and 17 engagements of the 5th fixed gear, the 6th fixed gear 12 and 15 engagements of the 7th fixed gear, power is delivered on the output shaft 16 through input shaft 3 drives first fixed gear 2, the 4th free gear 23, the 3rd free gear 8, the 5th fixed gear 17, the 6th fixed gear 12, the 7th fixed gear 15.
Third gear falls back, by closed second direction clutch 22 and third gear clutch 19, first fixed gear 2 and 23 engagements of the 4th free gear, the 8th fixed gear 20 and 18 engagements of the 5th free gear, the 6th fixed gear 12 and 15 engagements of the 7th fixed gear, power is delivered on the output shaft 16 through input shaft 3 drives first fixed gear 2, the 4th free gear 23, the 8th fixed gear 20, the 5th free gear 18, the 6th fixed gear 12, the 7th fixed gear 15.
The whole forward gearss of the utility model gearbox are by a direction clutch and a gear clutch closure, through four pairs of gear engagement outputting powers, all backward gear is by a direction clutch and a gear clutch closure, through three pairs of gear engagement outputting powers, simplified structure, improve efficient, reduced cost.
Claims (14)
1. a Powershift transmission that is applicable to engineering machinery comprises input shaft (3), output shaft (16), it is characterized in that:
Carry out power transmission by three power transmission units between described input shaft (3) and the output shaft (16).
2. a kind of Powershift transmission that is applicable to engineering machinery according to claim 1, it is characterized in that: described three power transmission units comprise:
First jack shaft (5) is in transmission connection with input shaft (3);
The 3rd jack shaft (13) is in transmission connection with output shaft (16);
Second jack shaft (21) is in transmission connection respectively with input shaft (3), first jack shaft (5), the 3rd jack shaft (13).
3. a kind of Powershift transmission that is applicable to engineering machinery according to claim 2 is characterized in that:
Respectively be provided with two clutches on described first jack shaft (5), second jack shaft (21), the 3rd jack shaft (13).
4. a kind of Powershift transmission that is applicable to engineering machinery according to claim 3 is characterized in that:
Be fixedly connected with first fixed gear (2), second fixed gear (4) on the described input shaft (3); Be fixedly connected with the 7th fixed gear (15) on the described output shaft (16).
5. a kind of Powershift transmission that is applicable to engineering machinery according to claim 4 is characterized in that:
Described first jack shaft (5) is provided with:
Second free gear (26) can be meshed with first fixed gear (2);
First free gear (6) can be meshed with second fixed gear (4);
The 3rd fixed gear (24) is fixedly mounted between second free gear (26) and first free gear (6).
6. a kind of Powershift transmission that is applicable to engineering machinery according to claim 5 is characterized in that:
Two clutches on described first jack shaft (5) comprise:
Third direction clutch (25) is in transmission connection with second free gear (26);
First direction clutch (7) is in transmission connection with first free gear (6).
7. a kind of Powershift transmission that is applicable to engineering machinery according to claim 6 is characterized in that:
Second free gear (26) and first free gear (6) connect with rolling bearing with first jack shaft (5) respectively, and connect or the interruption transmission of power by third direction clutch (25) and first direction clutch (7) respectively.
8. a kind of Powershift transmission that is applicable to engineering machinery according to claim 7 is characterized in that: be provided with successively on described second jack shaft (21):
The 4th free gear (23) can be meshed with first fixed gear (2);
The 8th fixed gear (20) is with the normal engagement of the 3rd fixed gear (24);
The 3rd free gear (8) and the 4th fixed gear (9).
9. a kind of Powershift transmission that is applicable to engineering machinery according to claim 7 is characterized in that:
Two clutches on described second jack shaft (21) comprise:
Second direction clutch (22) is in transmission connection with the 4th free gear (23);
The first gear clutch (10) is in transmission connection with the 3rd free gear (8).
10. a kind of Powershift transmission that is applicable to engineering machinery according to claim 9 is characterized in that:
The 4th free gear (23) and the 3rd free gear (8) connect with rolling bearing with second jack shaft (21) respectively, and connect or the interruption transmission of power by second direction clutch (22) and the first gear clutch (10) respectively.
11. a kind of Powershift transmission that is applicable to engineering machinery according to claim 10 is characterized in that:
Be provided with successively on described the 3rd jack shaft (13):
The 5th free gear (18) can be meshed with the 8th fixed gear (20);
The 5th fixed gear (17) can be meshed with the 3rd free gear (8);
The 6th free gear (11) can be meshed with the 4th fixed gear (9);
The 6th fixed gear (12) is with the normal engagement of the 7th fixed gear (15).
12. a kind of Powershift transmission that is applicable to engineering machinery according to claim 11 is characterized in that:
Two clutches on described the 3rd jack shaft (13) comprise:
Third gear clutch (19) is in transmission connection with the 5th free gear (18);
The second gear clutch (14) is in transmission connection with the 6th free gear (11).
13. a kind of Powershift transmission that is applicable to engineering machinery according to claim 12 is characterized in that:
The 5th free gear (18) and first free gear (11) connect with rolling bearing with the 3rd jack shaft (13) respectively, and connect or the interruption transmission of power by third gear clutch (19) and the second gear clutch (14) respectively.
14. a kind of Powershift transmission that is applicable to engineering machinery according to claim 13, it is characterized in that: described first fixed gear (2), second fixed gear (4), the 3rd fixed gear (24), the 4th fixed gear (9), the 5th fixed gear (17), the 6th fixed gear (12), the 7th fixed gear (15), the 8th fixed gear (20) and first free gear (6), second free gear (26), the 3rd free gear (8), the 4th free gear (23), the 5th free gear (18), the 6th free gear (11) is thin and tall tooth, contact ratio and overlap ratio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320166838 CN203146718U (en) | 2013-04-07 | 2013-04-07 | Power shift gearbox applicable to engineering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320166838 CN203146718U (en) | 2013-04-07 | 2013-04-07 | Power shift gearbox applicable to engineering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146718U true CN203146718U (en) | 2013-08-21 |
Family
ID=48974244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320166838 Withdrawn - After Issue CN203146718U (en) | 2013-04-07 | 2013-04-07 | Power shift gearbox applicable to engineering machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146718U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161887A (en) * | 2013-04-07 | 2013-06-19 | 福田雷沃国际重工股份有限公司 | Power shift gear box applied to engineering machinery |
| CN104373526A (en) * | 2014-08-21 | 2015-02-25 | 徐工集团工程机械股份有限公司科技分公司 | Power shift gearbox |
-
2013
- 2013-04-07 CN CN 201320166838 patent/CN203146718U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161887A (en) * | 2013-04-07 | 2013-06-19 | 福田雷沃国际重工股份有限公司 | Power shift gear box applied to engineering machinery |
| CN103161887B (en) * | 2013-04-07 | 2015-09-02 | 福田雷沃国际重工股份有限公司 | Be applicable to the Powershift transmission of engineering machinery |
| CN104373526A (en) * | 2014-08-21 | 2015-02-25 | 徐工集团工程机械股份有限公司科技分公司 | Power shift gearbox |
| CN104373526B (en) * | 2014-08-21 | 2017-03-01 | 徐州徐工传动科技有限公司 | A kind of power-shift transmission |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202719084U (en) | Final transmission reduction box for high-horsepower tractor | |
| CN112519504A (en) | Electric drive axle with double motors and double-speed parallel shafts | |
| CN203146718U (en) | Power shift gearbox applicable to engineering machine | |
| CN219139768U (en) | Tractor gearbox with HST | |
| CN104389955B (en) | Single many worm gear end face mesh gears of worm screw | |
| CN204083094U (en) | A kind of electrically driven (operated) planetary transmission | |
| CN103161887B (en) | Be applicable to the Powershift transmission of engineering machinery | |
| CN201751630U (en) | Auxiliary gearbox and wheeled tractor comprising same | |
| CN201606458U (en) | Speed changing box of mini-tiller | |
| CN201306425Y (en) | Gearbox of loading machine | |
| CN201843955U (en) | Multi-shaft transmission mechanism with stepless speed change | |
| CN2723773Y (en) | Automobile gear box device | |
| CN202158141U (en) | Four-wheel drive power divider | |
| CN218408390U (en) | Four-gear automatic transmission axle for electric automobile and vehicle | |
| CN201615189U (en) | 16-gear transmission assembly for heavy duty car | |
| CN219013303U (en) | Four-gear automatic speed changing bridge for electric automobile | |
| CN203214809U (en) | Power gear-shifting double-function speed changer | |
| CN212480029U (en) | Scraper gearbox | |
| CN220416127U (en) | Gear transmission mechanism of nine-gear gearbox | |
| CN220600357U (en) | Variable speed transmission assembly of heavy tractor | |
| CN215806071U (en) | Power shift transmission, transmission system and engineering machinery | |
| CN212004118U (en) | Large-speed-ratio partition double-intermediate-shaft gearbox | |
| CN217977227U (en) | Small-sized three-stage speed change device for toy car | |
| CN211039553U (en) | Small-size agricultural machinery gearbox | |
| CN218408391U (en) | Four-gear automatic transmission axle for electric automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130821 Effective date of abandoning: 20150902 |
|
| RGAV | Abandon patent right to avoid regrant |