CN214465905U - Gearbox and agricultural machine - Google Patents
Gearbox and agricultural machine Download PDFInfo
- Publication number
- CN214465905U CN214465905U CN202022556440.9U CN202022556440U CN214465905U CN 214465905 U CN214465905 U CN 214465905U CN 202022556440 U CN202022556440 U CN 202022556440U CN 214465905 U CN214465905 U CN 214465905U
- Authority
- CN
- China
- Prior art keywords
- gear
- teeth
- shaft
- tooth
- bevel gear
- 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.)
- Active
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 230000008859 change Effects 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000009471 action Effects 0.000 claims description 13
- 235000000621 Bidens tripartita Nutrition 0.000 claims description 3
- 240000004082 Bidens tripartita Species 0.000 claims description 3
- 208000006637 fused teeth Diseases 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 7
- 230000001360 synchronised effect Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Retarders (AREA)
Abstract
The utility model provides an agricultural machine and a gearbox thereof, wherein the gearbox comprises a box body and a first shaft and a second shaft which are arranged in the box body, and the first shaft and the second shaft are arranged in parallel; the first shaft is sequentially provided with a triple gear, a fourth gear fixing gear, a third gear fixing gear, a second gear fixing gear and a first gear fixing gear; the four-gear duplex teeth, the three-gear duplex teeth, the two-gear duplex teeth and the one-gear duplex teeth are sequentially arranged on the second shaft, and are respectively meshed with the four-gear fixed teeth, the three-gear fixed teeth, the two-gear duplex teeth and the one-gear duplex teeth; one end of the two shafts is also provided with a bevel gear shaft, auxiliary speed change teeth are fixedly arranged on the bevel gear shaft, auxiliary sliding teeth meshed with the auxiliary speed change teeth are arranged on the auxiliary speed change teeth, and one end of the bevel gear shaft, which is far away from the two shafts, is fixedly provided with a driving bevel gear; one end of the driving bevel gear back is also provided with a front drive differential mechanism; the box body is also internally provided with a rear drive shaft, and one end of the rear drive shaft is also provided with a differential assembly.
Description
Technical Field
The utility model relates to the field of agricultural machinery, in particular to gearbox and agricultural machine.
Background
In recent years, with the continuous development of economy, various agricultural machines such as tractors and the like are more and more widely applied in vast rural areas.
Gearboxes, which are important components of various vehicles, are mechanisms for changing the rotational speed and torque from an engine, which can change the transmission ratio of an output shaft and an input shaft in a fixed or stepped manner, and are also called transmissions. The traditional tractor has the transmission with single front drive, rear drive, four-wheel drive and other types, but under the condition of heavy load or poor road conditions, the linear speeds of front and rear tires are different, so that the four-wheel drive cannot be driven for a long time.
In summary, how to provide a transmission case with consistent linear speeds of front and rear tires and capable of realizing all-time four-wheel drive and synchronous four-wheel drive, and an agricultural machine comprising the transmission case, become technical problems to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the gearbox is capable of realizing full-time four-wheel drive and synchronous four-wheel drive, and the agricultural machine comprising the gearbox.
The utility model discloses a solution is realized like this: the utility model provides a gearbox used for agricultural machinery, which comprises a box body, a first shaft and a second shaft which are arranged in the box body, wherein the first shaft and the second shaft are arranged in parallel; the first shaft is sequentially provided with a triple gear, a fourth gear fixing gear, a third gear fixing gear, a second gear fixing gear and a first gear fixing gear; the four-gear duplex teeth, the three-gear duplex teeth, the two-gear duplex teeth and the one-gear duplex teeth are sequentially arranged on the second shaft, and are respectively meshed with the four-gear fixed teeth, the three-gear fixed teeth, the two-gear duplex teeth and the one-gear duplex teeth; one end of the two shafts is also provided with a bevel gear shaft, auxiliary speed change teeth are fixedly arranged on the bevel gear shaft, auxiliary sliding teeth meshed with the auxiliary speed change teeth are arranged on the auxiliary speed change teeth, and one end of the bevel gear shaft, which is far away from the two shafts, is fixedly provided with a driving bevel gear; one end of the driving bevel gear, which is far away from the bevel gear shaft, is also provided with a front-drive differential mechanism; and a rear drive shaft arranged in parallel with the two shafts is further arranged in the box body, and a differential assembly is further arranged at one end of the rear drive shaft. The gearbox of above-mentioned structure is through setting up forerunner's differential mechanism in the gearbox to and the differential is in structures such as assembly, compares with the gearbox of current structure, can realize that the front and back tire linear velocity is unanimous, and the full-time is four-wheel-driven and synchronous four-wheel-driven, and it has the advantage in the aspect of load and driving force are more powerful.
The utility model discloses an another technical scheme lies in on above-mentioned basis, still be equipped with one two shelves of effect teeth and three four shelves of effect teeth on the diaxon, one two shelves of effect teeth and three four shelves of effect teeth set up respectively in the both sides of two shelves of duplex teeth.
Another technical scheme of the utility model lies in on the basis of above-mentioned, still be equipped with all the time on the second gear effect tooth with the second gear clutch collar of a second gear effect tooth meshing, the second gear clutch collar can the second gear effect tooth goes up the horizontal slip.
Another technical solution of the present invention is to provide the above structure, wherein the three-fourth gear engaging teeth are provided with three-fourth gear engaging sleeves, and the three-fourth gear engaging sleeves can slide on the three-fourth gear engaging teeth.
Another technical scheme of the utility model lies in on above-mentioned basis, still be equipped with passive bevel gear on the forerunner's differential mechanism, the initiative bevel gear with passive bevel gear is in the engaged state all the time, when passive bevel gear is rotatory, drive forerunner's differential mechanism is rotatory.
The utility model discloses an another technical scheme lies in on above-mentioned basis, the back drive axle with still be equipped with deciliter tooth cover between the differential mechanism assembly, deciliter tooth cover is used for connecting or separating back drive axle and differential mechanism assembly, the back drive axle deviates from the one end of deciliter tooth cover still is equipped with the back drive flange.
The utility model discloses an another technical scheme lies in on above-mentioned basis, the differential mechanism assembly includes the casing, the casing deviates from the civilian one end of driving the axle after still being equipped with the detachable rear-guard end tooth, the rear-guard end tooth with vice sliding tooth meshing.
The utility model discloses an another technical scheme lies in on above-mentioned basis, still be equipped with the forerunner's axle in the box, the both ends of forerunner's differential mechanism still are equipped with two terminal driving teeth respectively, the forerunner is epaxial be equipped with respectively two with terminal driven teeth that drive the tooth meshing, when terminal driving tooth is rotatory, drive terminal driven tooth and forerunner's axle are rotatory.
The utility model discloses an another technical scheme lies in on above-mentioned basis, the one end of an axle still is equipped with the clutch shaft, the clutch shaft with still be equipped with the adapter sleeve between an axle, the other end of an axle still is equipped with the output flange.
On the other hand, the utility model also provides an agricultural machine, agricultural machine include the clutch with set up in the gearbox of clutch one end, the gearbox be as above the gearbox.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation.
Fig. 1 is a schematic view of an internal structure of a transmission according to the present invention;
fig. 2 is a schematic view of another visual internal structure of the transmission according to the present invention.
The corresponding relation of the reference signs is as follows:
1 clutch shaft 2 and connecting sleeve 3 shaft
4 low-speed fixed tooth 42 pair sliding tooth of triple gear 41
43 pairs of fixed teeth 44 high-speed fixed teeth
5-fourth-gear fixed tooth 51-fourth-gear duplex tooth
6 three-gear fixed tooth 61 three-gear double tooth
7 second-gear fixed tooth 71 second-gear duplex tooth
8 first-gear fixed tooth 81 first-gear duplex tooth
9 output flange 10 biaxial 101 bearing
102 driving bevel gear 11 rear-drive flange 12 rear-drive shaft
13 first-second gear engaging sleeve 131 first-second gear action teeth
14 three-gear and four-gear engaging sleeve 141 three-gear and four-gear acting teeth
15 divide-shut tooth cover 16 differential mechanism assembly 17 rear-drive end tooth
18 driven bevel gears of front drive differential 181
19 tail end driven teeth 20 tail end driving teeth 21 bevel gear shaft
Detailed Description
The present invention will be described in detail with reference to the drawings, which are provided for illustrative and explanatory purposes only and should not be construed as limiting the scope of the present invention in any way. Furthermore, features from embodiments in this document and from different embodiments may be combined accordingly by a person skilled in the art from the description in this document.
The embodiment of the utility model provides a follow, please see the gearbox that fig. 1 and fig. 2 show for on the agricultural machine, including the box with set up one 3 and two axles 10 in the box, one 3 and two axle 10 parallel arrangement. The three-gear fixed gear 4, the four-gear fixed gear 5, the three-gear fixed gear 6, the two-gear fixed gear 7 and the first-gear fixed gear 8 are sequentially arranged on the first shaft 3 from left to right, wherein the three-gear 4 and the first shaft 3 are in clearance fit, and torque is not transmitted between the three-gear fixed gear and the first shaft. The fourth-gear fixed teeth 5, the third-gear fixed teeth 6, the second-gear fixed teeth 7 and the first-gear fixed teeth 8 are fixedly arranged on the first shaft 3, and when the first shaft 3 rotates, the fourth-gear fixed teeth 5, the third-gear fixed teeth 6, the second-gear fixed teeth 7 and the first-gear fixed teeth 8 are driven to rotate together. The four-gear duplex teeth 51, the three-gear duplex teeth 61, the two-gear duplex teeth 71 and the first-gear duplex teeth 81 are sequentially arranged on the second shaft 10 from left to right, the four-gear duplex teeth 51, the three-gear duplex teeth 61, the two-gear duplex teeth 71 and the first-gear duplex teeth 81 are in clearance fit with the second shaft 10, and the four-gear duplex teeth 51, the three-gear duplex teeth 61, the two-gear duplex teeth 71 and the first-gear duplex teeth 81 are respectively meshed with the four-gear fixed teeth 5, the three-gear fixed teeth 6, the two-gear fixed teeth 7 and the first-gear fixed teeth 8. One end of the two shafts 10, i.e. the left end as shown in fig. 1, is further provided with a bevel gear shaft 21, more specifically, a bearing 101 is provided between the bevel gear shaft 21 and the two shafts 10, and the bearing 101 is specifically a needle bearing 101. The bevel gear shaft 21 is fixedly provided with an auxiliary fixed gear 43, the auxiliary fixed gear 43, specifically, the periphery thereof is further provided with an auxiliary sliding gear 42 engaged with the auxiliary fixed gear, and one end of the bevel gear shaft 21 departing from the two shafts 10, namely, the left end shown in fig. 1 is fixedly provided with a driving bevel gear 102. The end of the drive bevel 102 facing away from the bevel shaft 21, the left end as viewed in FIG. 1, is also provided with the forward differential 18. In addition, a rear drive shaft 12 is arranged in the box body and parallel to the two shafts 10, and a differential assembly 16 is arranged at one end of the rear drive shaft 12, namely the left end in the drawing. The gearbox of above-mentioned structure through set up forerunner's differential 18 in the gearbox to and the differential is in structures such as assembly, compares with the gearbox of current structure, can realize that the front and back tire linear velocity is unanimous, and the full-time is four-wheel-driven and synchronous four-wheel-driven, and it has the advantage in the aspect of load and driving capability are more powerful.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 1, a second gear action tooth 131 and a third fourth gear action tooth 141 are further disposed on the second shaft 10, the second gear action tooth 131 and the third fourth gear action tooth 141 are respectively disposed on two sides of the second gear duplex tooth 71, more specifically, the second gear action tooth 131 is disposed on the right side of the second gear duplex tooth 71, and the third fourth gear action tooth 141 is disposed on the left side of the second gear duplex tooth 71.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 1, a first and a second engaging sleeves 13 engaged with the first and the second engaging teeth 131 are further disposed on the first and the second engaging teeth 131, specifically, on the periphery of the first and the second engaging teeth 131, and under the action of the shifting fork, the first and the second engaging sleeves 13 can slide left and right on the first and the second engaging teeth 131.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 1, a third and fourth gear engaging sleeve 14 engaged with the third and fourth gear engaging teeth 141 all the time is further disposed on the third and fourth gear engaging teeth 141, specifically, on the periphery of the third and fourth gear engaging teeth 141, and under the action of the shifting fork, the third and fourth gear engaging sleeve 14 can slide left and right on the third and fourth gear engaging teeth 141.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 1 and fig. 2, the front drive differential 18 is further provided with a driven bevel gear 181, the driving bevel gear 102 and the driven bevel gear 181 at the end of the bevel gear shaft 21 are always engaged, and when the driven bevel gear 181 rotates, the front drive differential 18 is driven to rotate.
On the basis of the above-mentioned embodiment, in another embodiment of the utility model, as shown in fig. 1 and fig. 2, still be equipped with deciliter tooth cover 15 between back-drive axle 12 and the differential mechanism assembly 16, deciliter tooth cover 15 specifically is used for connecting or separating back-drive axle 12 and differential mechanism assembly 16, and when deciliter tooth cover 15 links back-drive axle 12 and differential mechanism assembly 16 together, back-drive axle 12 is rotatory when, drives differential mechanism assembly 16 and rotates in the lump, realizes synchronous drive. In addition, one end of the rear drive shaft 12, which is far away from the clutch gear sleeve 15, namely the right end in the figure, is also provided with a rear drive flange 11.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 1 and 2, the differential assembly 16 includes a casing, one end of the casing departing from the rear drive shaft 12, that is, the left end shown in fig. 1 is further provided with a detachable rear drive end tooth 17, and the rear drive end tooth 17 is engaged with the auxiliary sliding tooth 42. Specifically, a plurality of bolt holes are formed in the rear-drive tail end tooth 17 and the shell, and bolts are arranged in the bolt holes, namely the rear-drive tail end tooth 17 is connected with the shell through the bolts.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 1 and fig. 2, a front driving shaft is further disposed in the box, two end driving teeth 20 are further disposed at two ends of the front driving differential 18, two end driven teeth 19 engaged with the end driving teeth 20 are disposed on the front driving shaft, and when the end driving teeth 20 rotate, the end driven teeth 19 and the front driving shaft are driven to rotate.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 1, one end of a shaft 3, i.e. the left end shown in the figure, is further provided with a clutch shaft 1, a connecting sleeve 2 is further provided between the clutch shaft 1 and the shaft 3, and the other end of the shaft 3, i.e. the right end shown in the figure, is further provided with an output flange 9, and more specifically, the output flange 9 is a PTO output flange 9.
In the transmission with the above structure, the driving bevel gear 102 is connected with the auxiliary fixing teeth 43 through splines, and the auxiliary fixing teeth 43 are always meshed with the auxiliary sliding teeth 42. In operation, when the third and fourth gear sleeve 14 slides to the left, the fourth gear double tooth 51 transfers torque to the third and fourth gear sleeve 14 and simultaneously to the third and fourth gear action tooth 141, thereby transferring torque to the second shaft 10. Since the high-speed fixed teeth 44 are spline-connected to the biaxial 10, torque can be obtained. When the secondary sliding teeth 42 slide to the right, the torque of the high-speed fixing teeth 44 is received and transmitted to the driving bevel teeth 102 and the rear-drive end teeth 17. When the auxiliary sliding teeth 42 slide leftward, the torque is transmitted to the triple tooth 4 through the high-speed fixing teeth 44, transmitted to the low-speed fixing teeth 41 through the triple tooth 4, and transmitted to the driving bevel gear 102 and the rear-drive end tooth 17 through the auxiliary sliding teeth 42.
The driving bevel gear 102 and the driven bevel gear 181 are always engaged, when the driven bevel gear 181 rotates, the driving differential 18 is driven to rotate, and the driving gear 20 at the tail end is connected with the planetary gear in the driving differential 18 through a spline, so that torque is obtained. The end driving tooth 20 obtains torque and transmits the torque to the end driven tooth 19, so that the front wheel is driven to rotate. The rear drive shaft 12 is connected with a differential assembly 16 through a spline, and differential four-wheel drive transmission is realized. When the front wheel or the rear wheel slips, the split-clutch gear sleeve 15 slides on the differential assembly 16, and the differential assembly 16 and the rear drive shaft 12 are meshed simultaneously, so that synchronous four-wheel drive transmission is realized.
On the other hand, the utility model also provides an agricultural machine, including the clutch with set up in the gearbox of clutch one end, the gearbox specifically does the gearbox. The agricultural machine may be a wheeled tractor.
The agricultural machine with the structure can correspondingly realize the consistency of the linear speeds of the front and the rear tires, the full-time four-wheel drive and the synchronous four-wheel drive, and has the advantages of stronger load and driving capability and the like.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A gearbox is used for agricultural machinery and is characterized by comprising a box body, a first shaft and a second shaft, wherein the first shaft and the second shaft are arranged in the box body and are arranged in parallel;
the first shaft is sequentially provided with a triple gear, a fourth gear fixing gear, a third gear fixing gear, a second gear fixing gear and a first gear fixing gear;
the four-gear duplex teeth, the three-gear duplex teeth, the two-gear duplex teeth and the one-gear duplex teeth are sequentially arranged on the second shaft, and are respectively meshed with the four-gear fixed teeth, the three-gear fixed teeth, the two-gear duplex teeth and the one-gear duplex teeth;
one end of the two shafts is also provided with a bevel gear shaft, auxiliary speed change teeth are fixedly arranged on the bevel gear shaft, auxiliary sliding teeth meshed with the auxiliary speed change teeth are arranged on the auxiliary speed change teeth, and one end of the bevel gear shaft, which is far away from the two shafts, is fixedly provided with a driving bevel gear;
one end of the driving bevel gear, which is far away from the bevel gear shaft, is also provided with a front-drive differential mechanism;
and a rear drive shaft arranged in parallel with the two shafts is further arranged in the box body, and a differential assembly is further arranged at one end of the rear drive shaft.
2. The transmission of claim 1, wherein a second gear engagement tooth and a third fourth gear engagement tooth are provided on the countershaft, and the second gear engagement tooth and the third fourth gear engagement tooth are provided on either side of the second gear double tooth.
3. The transmission according to claim 2, wherein said first second-speed active teeth are further provided with a second-speed engaging sleeve which is always engaged with said first second-speed active teeth, and said second-speed engaging sleeve is slidable left and right on said second-speed active teeth.
4. The transmission according to claim 3, wherein said third and fourth gear action teeth are further provided with a third and fourth gear engaging sleeve which is always engaged with said third and fourth gear action teeth, and said third and fourth gear engaging sleeve can slide left and right on said third and fourth gear action teeth.
5. The transmission according to claim 4, wherein the forward-drive differential is further provided with a driven bevel gear, the driving bevel gear and the driven bevel gear are always in a meshed state, and the driven bevel gear drives the forward-drive differential to rotate when rotating.
6. The gearbox according to claim 5, wherein a split-combination gear sleeve is further arranged between the rear drive shaft and the differential assembly, the split-combination gear sleeve is used for connecting or separating the rear drive shaft and the differential assembly, and a rear drive flange is further arranged at one end of the rear drive shaft, which is far away from the split-combination gear sleeve.
7. The transmission of claim 6, wherein the differential assembly includes a housing, an end of the housing facing away from the rear drive shaft further having a removable rear drive end tooth, the rear drive end tooth engaging the secondary sliding tooth.
8. The gearbox according to claim 7, wherein a front drive shaft is further arranged in the box, two end driving teeth are further respectively arranged at two ends of the front drive differential, two end driven teeth meshed with the end driving teeth are respectively arranged on the front drive shaft, and when the end driving teeth rotate, the end driven teeth and the front drive shaft are driven to rotate.
9. The gearbox of claim 8, wherein a clutch shaft is further arranged at one end of the shaft, a connecting sleeve is further arranged between the clutch shaft and the shaft, and an output flange is further arranged at the other end of the shaft.
10. An agricultural machine comprising a clutch and a gearbox provided at one end of the clutch, wherein the gearbox is a gearbox according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022556440.9U CN214465905U (en) | 2020-11-06 | 2020-11-06 | Gearbox and agricultural machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022556440.9U CN214465905U (en) | 2020-11-06 | 2020-11-06 | Gearbox and agricultural machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214465905U true CN214465905U (en) | 2021-10-22 |
Family
ID=78149069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022556440.9U Active CN214465905U (en) | 2020-11-06 | 2020-11-06 | Gearbox and agricultural machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214465905U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413080A (en) * | 2020-11-06 | 2021-02-26 | 长沙桑铼特农业机械设备有限公司 | A gearbox and agricultural machinery |
-
2020
- 2020-11-06 CN CN202022556440.9U patent/CN214465905U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413080A (en) * | 2020-11-06 | 2021-02-26 | 长沙桑铼特农业机械设备有限公司 | A gearbox and agricultural machinery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9476461B2 (en) | Electric hybrid module for a dual clutch transmission | |
| GB2412147A (en) | A dual clutch transmission with planetary gearing | |
| CN112413080A (en) | A gearbox and agricultural machinery | |
| CN214465905U (en) | Gearbox and agricultural machine | |
| CN217463085U (en) | Tractor transmission system and tractor | |
| JPH0650138B2 (en) | Gear transmission for vehicles | |
| CN221323216U (en) | Four-wheel drive gearbox | |
| CN109578531B (en) | Gearbox and vehicle | |
| CN217951129U (en) | Transfer case and vehicle | |
| CN218408361U (en) | Gearbox assembly and tractor | |
| CN219821116U (en) | Vehicle drive axles and vehicles | |
| CN215890979U (en) | Four-wheel drive gearbox and tractor | |
| CN210118423U (en) | Gearbox and vehicle | |
| CN219139768U (en) | A tractor gearbox with HST | |
| CN115899185B (en) | A transmission for engineering vehicles | |
| CN210118430U (en) | Speed change gear and agricultural machine | |
| CN214274370U (en) | Gearbox and tractor | |
| CN212313281U (en) | Three-box type tractor transmission system and tractor | |
| CN214499948U (en) | Transfer case and agricultural machine | |
| CN210344179U (en) | Tractor and power transmission device | |
| CN115030996A (en) | Multifunctional gearbox and agricultural machine | |
| CN113217586A (en) | Four-wheel drive gearbox and tractor | |
| CN223894908U (en) | A multi-gear range power shift tractor gearbox | |
| CN221569324U (en) | Gear-shifting transfer case structure | |
| CN217683077U (en) | Multifunctional gearbox and agricultural machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |