CN218718536U

CN218718536U - Reverse and forward rotation transmission case and agricultural vehicle

Info

Publication number: CN218718536U
Application number: CN202223090453.7U
Authority: CN
Inventors: 张柱芬; 张志华; 张楚源
Original assignee: Guangxi Youxing Technology Co ltd
Current assignee: Guangxi Youxing Technology Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-03-24
Anticipated expiration: 2032-11-21

Abstract

The utility model discloses a reverse and clockwise rotation transmission case and agricultural vehicle belongs to the transmission case field, solves current many gears and reverses gear the structure and be difficult to use the problem on current agricultural machine. The input shaft and the output shaft that include split type setting, the axial lead of input shaft and output shaft is the same, the one end of input shaft is equipped with the driving gear, the one end of output shaft is rotated and is equipped with reverse gear driven gear, driving gear and reverse gear output shaft one end between the driven gear seted up the transition tooth, driving gear, transition tooth, reverse gear driven gear between slide the cover and be equipped with the synchronizer that reverses gear, one side between driving gear and the reverse gear driven gear still be equipped with and drive the relative input shaft antiport's of output shaft reverse gear transmission gear mechanism. The utility model discloses a reverse and be in the same direction as changeing transmission case, can realize advancing the fender and reverse the free switching of keeping off to the input shaft and the output shaft that the coaxial was arranged arrange can produce great moment of torsion, can be better be used for agricultural machine on.

Description

Reverse and forward rotation transmission case and agricultural vehicle

Technical Field

The utility model relates to a transmission case field, more specifically says that it relates to a reverse and clockwise rotation transmission case and agricultural vehicle.

Background

As understood by the market at present, the existing gearbox applied to the vehicle or the agricultural machine only has one reverse gear, particularly the working environment of the agricultural machine is relatively complicated, and the single reverse gear cannot meet the requirement of a user at all. Therefore, it is necessary to develop a transmission case with multiple reverse gears.

Through retrieval, the existing patent numbers are: 202120518656.8 discloses a multi-gear reverse gear structure of a gearbox. The multi-gear reverse gear structure comprises a driving shaft, a first gear, a sliding sleeve, a first bevel gear, a second bevel gear, a third bevel gear, a second gear, a third gear, an output shaft and a power device; the driving shaft is connected with a power device, the sliding sleeve is sleeved on the first gear and meshed with the first gear, and the sliding sleeve can be respectively meshed with the first bevel gear and the second bevel gear; the third bevel gear may be engaged with the first bevel gear and the second bevel gear, respectively, and the second bevel gear may be engaged with the first bevel gear. The third gear is meshed with the second gear, and the third gear is connected with the output shaft. The gearbox with the multi-gear reverse gear not only can enable a vehicle to move forwards in different gears, but also can enable the vehicle to move backwards in different gears, and achieves the function of multi-gear reverse.

However, in the above-mentioned conventional multi-gear reverse gear structure, the driving shaft (input shaft) and the output shaft are two shafts arranged in parallel, which are two-shaft transmission mechanisms, and because the two-shaft transmission mechanisms have small volume and need to be transmitted by gears during forward rotation, the generated torque is also small, so that the multi-gear reverse gear structure is mostly used for reverse gear speed regulation on cars, and the working environment of agricultural machinery is relatively complicated and many, and the required torque is usually large, so the conventional multi-gear reverse gear structure is difficult to be applied to the conventional agricultural machinery.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is not enough to the aforesaid of prior art, and one of its purpose is to provide a reverse-forward transmission case, can realize advancing the fender and reverse the free switching of keeping off to the input shaft and the output shaft of coaxial arranging arrange, can produce great moment of torsion, can be better be used for on the agricultural machine.

The second purpose is to provide an agricultural vehicle, which can realize the conversion from the forward gear to the reverse gear, can select multiple gears, can be fast or slow, meets the requirements of agricultural machinery users, and effectively improves the operation efficiency.

The technical scheme of the utility model is one such: the utility model provides a reverse and forward rotation transmission case, includes split type input shaft and the output shaft that sets up, the axial lead of input shaft and output shaft is the same, the one end of input shaft is equipped with the driving gear, the one end of output shaft is rotated and is equipped with reverse gear driven gear, driving gear and reverse gear driven gear between output shaft one end seted up transition tooth, driving gear, transition tooth, reverse gear driven gear between the slip cover be equipped with reverse gear synchronous ware, one side between driving gear and the reverse gear driven gear still be equipped with and drive the relative input shaft antiport transmission gear mechanism of output shaft.

As a further improvement, the reverse gear transmission gear mechanism comprises an intermediate normally meshed gear and a reverse gear duplicate gear, the intermediate normally meshed gear is meshed with the main driving gear and is connected with the main driving gear, the reverse gear duplicate gear is meshed with the intermediate normally meshed gear and is connected with the reverse gear driven gear.

Furthermore, the transmission case also comprises a case body, the input shaft and the output shaft are respectively arranged at two ends of the case body through bearings, and the reverse gear transmission gear mechanism is positioned in the case body.

Furthermore, the reverse gear duplicate gear comprises two linkage gears, the two linkage gears are connected through a shaft sleeve, one linkage gear is meshed with the middle constant mesh gear, and the other linkage gear is meshed with the reverse gear driven gear.

Furthermore, reverse gear drive gear mechanism still include reverse gear one axle and reverse gear two axles, reverse gear one axle and reverse gear two axles all fix in the box, reverse gear duplicate gear pass through the bearing and install on reverse gear one axle, middle constant mesh gear pass through the bearing and install on reverse gear two axles.

Furthermore, a shifting fork is inserted on the reverse gear synchronizer and movably penetrates through the box body and extends to the outer side of the box body.

Furthermore, the box on still be equipped with the cylinder, the output and the shift fork of cylinder are kept away from the one end of reversing gear synchronous ware and are connected.

Furthermore, the box body is provided with an upper cover which covers the joint of the shifting fork and the cylinder.

Furthermore, meshing teeth are formed in the ends, close to the transition teeth, of the main driving gear and the reverse gear driven gear, and the reverse gear synchronizer is sleeved between the meshing teeth and the transition teeth in a sliding mode.

The technical scheme of the utility model is secondly such: an agricultural vehicle comprises the reversing and reversing transmission case, wherein an input shaft of the reversing and reversing transmission case is connected with a transmission shaft of an engine, and an output shaft of the reversing and reversing transmission case is connected with a transfer case or a gearbox.

Advantageous effects

Compared with the prior art, the utility model, have following advantage:

the utility model discloses a reverse and forward rotation transmission case, when using, when the synchronizer of reversing gear is in the one end that is close to the input shaft, the synchronizer of reversing gear locks output shaft and main drive gear, at this moment, because main drive gear is fixed with the input shaft, so input shaft and output shaft are connected as an organic whole, the input shaft rotates and drives the output shaft and rotate, realize the corotation of output shaft, and because the driven gear of reversing gear is connected with the output shaft rotation, therefore the driven gear of reversing gear idles, prevents to interfere; when the synchronizer that reverses gear slides toward output shaft one end, with output shaft and the locking of the driven gear that reverses gear, it is as an organic whole to make output shaft and reverse gear be connected between the driven gear, the input shaft drives main drive gear forward rotation, main drive gear drives middle constant mesh gear antiport, middle constant mesh gear drives the duplicate gear forward rotation that reverses gear, it drives the driven gear antiport that reverses gear to reverse gear the duplicate gear, it drives output shaft antiport again to reverse gear the driven gear, the free switching of fender and the reverse gear that gos forward can be realized to this transmission case, and the input shaft and the output shaft of coaxial arrangement, can produce great moment of torsion, can be better be used for on the agricultural machinery.

Drawings

FIG. 1 is a schematic view of a three-dimensional cross-sectional structure of one side of a transmission case according to the present invention;

FIG. 2 is a schematic view of a three-dimensional cross-sectional structure of the other side of the transmission case of the present invention;

FIG. 3 is a schematic view of a front view of a partial cross-sectional structure of the transmission case of the present invention;

fig. 4 is a schematic view of the three-dimensional structure of the agricultural vehicle of the present invention.

Wherein: 1-input shaft, 2-output shaft, 3-driving gear, 4-reverse driven gear, 5-transition gear, 6-reverse synchronizer, 7-intermediate constant mesh gear, 8-reverse duplicate gear, 9-box, 10-bearing, 11-reverse first shaft, 12-reverse second shaft, 13-shifting fork, 14-cylinder, 15-upper cover, 16-mesh gear, 17-engine, 18-transmission shaft and 19-transfer box.

Detailed Description

The invention will be further described with reference to specific embodiments shown in the drawings.

Referring to fig. 1-3, the utility model discloses a reverse and forward rotation transmission case, input shaft 1 and output shaft 2 including split type setting, wherein, input shaft 1 is the same with output shaft 2's axial lead, be equipped with driving gear 3 in the one end of input shaft 1, output shaft 2's one end is rotated and is equipped with reverse gear driven gear 4, concretely, be connected through bearing 10 between reverse gear driven gear 4 and the output shaft 2, transition tooth 5 has been seted up to output shaft 2 one end between driving gear 3 and reverse gear driven gear 4, driving gear 3, transition tooth 5, the slip cover is equipped with reverse gear synchronous ware 6 between the reverse gear driven gear 4, reverse gear synchronous ware 6 is the synchronous ware among the prior art, one side between driving gear 3 and reverse gear driven gear 4 still is equipped with the reverse gear transmission gear mechanism that can drive output shaft 2 relative input shaft 1 antiport. Preferably, the reverse gear transmission gear mechanism comprises an intermediate constant mesh gear 7 and a reverse gear duplicate gear 8, wherein the intermediate constant mesh gear 7 is meshed with the main driving gear 3, the reverse gear duplicate gear 8 is meshed with the intermediate constant mesh gear 7, and the reverse gear duplicate gear 8 is further meshed with the reverse gear driven gear 4. The cylindrical gear transmission mode is adopted, so that the transmission power is high, the noise is low, and the stability is higher.

The utility model discloses a reverse and forward rotation transmission case, when using, when reverse gear synchronizer 6 is in the one end that is close to input shaft 1, reverse gear synchronizer 6 locks output shaft 2 and main drive gear 3 (reverse gear synchronizer 6 meshes transition tooth 5 and main drive gear 2 corresponding meshing tooth 16 simultaneously), at this moment, because main drive gear 3 is fixed with input shaft 1, therefore input shaft 1 is connected as an organic whole with output shaft 2, input shaft 1 rotates and drives output shaft 2 and rotate, realize output shaft 2 corotation, and because reverse gear driven gear 4 rotates with output shaft 2 and is connected, therefore reverse gear driven gear 4 idles, prevent to interfere; when the reverse gear synchronizer 6 slides towards one end of the output shaft 2, the output shaft 2 and the reverse gear driven gear 4 are locked (the reverse gear synchronizer 6 is simultaneously meshed with the transition teeth 5 and the meshing teeth 16 corresponding to the reverse gear driven gear 4), the output shaft 2 and the reverse gear driven gear 4 are connected into a whole, the input shaft 1 drives the main driving gear 3 to rotate in the forward direction, the main driving gear 3 drives the middle normally meshed gear 7 to rotate in the reverse direction, the middle normally meshed gear 7 drives the reverse gear duplicate gear 8 to rotate in the forward direction, the reverse gear duplicate gear 8 drives the reverse gear driven gear 4 to rotate in the reverse direction, the reverse gear driven gear 4 drives the output shaft 2 to rotate in the reverse direction again, the transmission case can realize free switching of forward gear and reverse gear, and the input shaft and the output shaft which are coaxially arranged can generate larger torque, and can be better used for agricultural machinery.

Preferably, the utility model discloses a transmission case still includes box 9, and wherein, input shaft 1 and output shaft 2 are installed at the both ends of box 9 through bearing 10 respectively, and reverse gear drive gear mechanism is located box 9, the installation of each axle of being convenient for to effectively protect each gear drive.

Preferably, the reverse gear duplicate gear 8 comprises two linkage gears, the two linkage gears are connected through a shaft sleeve, one linkage gear is meshed with the middle normally meshed gear 7 and the other linkage gear is meshed with the reverse gear driven gear 4, and the middle normally meshed gear 7 can be ensured to be linked with the reverse gear driven gear 4. The reverse gear transmission gear mechanism further comprises a reverse gear shaft 11 and a reverse gear shaft 12, wherein the reverse gear shaft 11 and the reverse gear shaft 12 are both fixed in the box body 9, the reverse gear duplicate gear 8 is installed on the reverse gear shaft 11 through a bearing 10, and the middle constant mesh gear 7 is installed on the reverse gear shaft 12 through the bearing 10, so that the reverse gear duplicate gear 8 and the middle constant mesh gear 7 can be conveniently installed.

Preferably, a shifting fork 13 is inserted into the reverse gear synchronizer 6, and the shifting fork 13 movably penetrates through the box body 9 and extends to the outer side of the box body 9, so that the shifting fork 13 can be conveniently shifted to adjust the position of the reverse gear synchronizer 6. Further, a cylinder 14 is arranged on the box 9, and an output end of the cylinder 14 is connected with one end of the shifting fork 13 far away from the reverse gear synchronizer 6. The shifting fork 13 is driven to move by the cylinder 14, so that the operation is more convenient and labor-saving. In other embodiments, the air cylinder 14 may be replaced by a hydraulic cylinder, an electric cylinder, or the like.

Preferably, the case 9 is provided with an upper cover 15 for covering a joint between the fork 13 and the cylinder 14 to protect the same.

Preferably, meshing teeth 16 are formed in the ends, close to the transition teeth 5, of the main driving gear 3 and the reverse gear driven gear 4, the reverse gear synchronizer 6 is sleeved between the meshing teeth 16 and the transition teeth 5 in a sliding mode, and the main driving gear 3 and the reverse gear driven gear 4 are conveniently locked by the reverse gear synchronizer 6 respectively.

As shown in fig. 3, the utility model discloses an agricultural vehicle, including foretell reversing and reversing transmission case, the input shaft 1 of this reversing and reversing transmission case is connected with the transmission shaft 18 of engine 17, can transmit engine 17 to input shaft 1 through transmission shaft 18 on, and the output shaft 2 of this reversing and reversing transmission case is connected with transfer case 19 or gearbox. In the embodiment, the output shaft 2 can be directly connected with the gearbox, after the reverse gear is switched, the existing transmission of the agricultural vehicle can be used for adjusting a plurality of gears to reverse, the forward gear is switched into the reverse gear, the selection of multiple gears can be realized, the speed can be increased or decreased, the requirements of agricultural machinery users can be met, the operation efficiency is effectively improved, the operation is flexible, and the effects of saving oil and time can be achieved; the output shaft 2 can also be connected with the transfer case 19, and the transfer case 19 is connected with the gearbox, so as to realize an additional driving function, for example, the transfer case 19 can divide part of power into the rotary tillage vertical blades, and the patent numbers are as follows: 202210281861.6A front and rear drive tiller with a rear engine.

The above is only the preferred embodiment of the present invention, and it should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which will not affect the utility model and the utility of the patent.

Claims

1. The utility model provides a reverse and forward rotation transmission case, its characterized in that, includes split type input shaft (1) and output shaft (2) that sets up, the axial lead of input shaft (1) and output shaft (2) is the same, the one end of input shaft (1) is equipped with driving gear (3), the one end of output shaft (2) is rotated and is equipped with reverse gear driven gear (4), driving gear (3) and reverse gear driven gear (4) between output shaft (2) one end seted up transition tooth (5), driving gear (3), transition tooth (5), reverse gear driven gear (4) between slip cover be equipped with reverse gear synchronous ware (6), one side between driving gear (3) and reverse gear driven gear (4) still be equipped with and drive output shaft (2) reverse rotation's relative input shaft (1) reverse gear transmission gear mechanism.

2. The reverse and forward transmission case as claimed in claim 1, wherein the reverse transmission gear mechanism comprises an intermediate constant mesh gear (7) and a reverse duplicate gear (8), the intermediate constant mesh gear (7) is meshed with the driving gear (3), the reverse duplicate gear (8) is meshed with the intermediate constant mesh gear (7), and the reverse duplicate gear (8) is further meshed with the reverse driven gear (4).

3. A reversing and reversing gear box according to claim 2, characterized in that, the gear box further comprises a box body (9), the input shaft (1) and the output shaft (2) are respectively installed at two ends of the box body (9) through bearings (10), and the reverse gear transmission gear mechanism is positioned in the box body (9).

4. A reversing and reversing gear box according to claim 3, wherein the reverse gear duplicate gear (8) comprises two linked gears which are connected through a shaft sleeve, one linked gear is meshed with the middle normally meshed gear (7), and the other linked gear is meshed with the reverse gear driven gear (4).

5. A reverse and forward drive box according to claim 4, characterized in that the reverse gear drive gear mechanism further comprises a first reverse gear shaft (11) and a second reverse gear shaft (12), the first reverse gear shaft (11) and the second reverse gear shaft (12) are both fixed in the box body (9), the reverse gear duplicate gear (8) is installed on the first reverse gear shaft (11) through a bearing (10), and the middle constant mesh gear (7) is installed on the second reverse gear shaft (12) through a bearing (10).

6. A reversing and reversing gear box according to claim 3, wherein a shift fork (13) is inserted into the reverse synchronizer (6), and the shift fork (13) movably penetrates through the box body (9) and extends to the outer side of the box body (9).

7. A reversing and reversing transmission case according to claim 6, characterized in that a cylinder (14) is further arranged on the case body (9), and an output end of the cylinder (14) is connected with one end, far away from the reverse gear synchronizer (6), of the shifting fork (13).

8. A reversing and reversing gear box according to claim 7, characterised in that the box (9) is provided with an upper cover (15) covering the connection between the fork (13) and the cylinder (14).

9. The reverse and forward transmission case as claimed in claim 1, wherein the driving gear (3) and the reverse gear driven gear (4) are provided with meshing teeth (16) at one ends close to the transition teeth (5), and the reverse gear synchronizer (6) is slidably sleeved between the meshing teeth (16) and the transition teeth (5).

10. An agricultural vehicle comprising a reversing and reversing gearbox according to any one of claims 1 to 9, the input shaft (1) of the reversing and reversing gearbox being connected to the drive shaft (18) of the engine (17), and the output shaft (2) of the reversing and reversing gearbox being connected to the transfer case (19) or gearbox.