CN216306645U

CN216306645U - Vehicle transmission system and vehicle

Info

Publication number: CN216306645U
Application number: CN202122961893.4U
Authority: CN
Inventors: 褚红卫; 王鑫
Original assignee: Linghai Hai Shi Da Machinery Co ltd
Current assignee: Haishida Emergency Equipment Zhejiang Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-04-15
Anticipated expiration: 2031-11-26

Abstract

The utility model provides a vehicle transmission system and a vehicle, comprising a main gearbox, a transmission mechanism and a transmission mechanism, wherein the main gearbox is provided with a first input shaft and first output shafts which are respectively arranged at the left side and the right side of the main gearbox; the first input shaft is used for being connected with a power source; the gear box group comprises an intermediate gear box and at least two output gear boxes, the intermediate gear box and the output gear boxes are arranged in a line at intervals, and the output gear boxes are distributed on two sides or one side of the intermediate gear box; the intermediate gear box is provided with a second input shaft and a second output shaft, and the second input shaft of the intermediate gear box is coaxially connected with the first output shaft on the main gear box on the corresponding side; the output gearbox is provided with a power transmission shaft and a rotating shaft sleeve; the power transmission shaft and the rotating shaft sleeve rotate synchronously, and the axial directions of the power transmission shaft and the rotating shaft sleeve are vertical; the rotating shaft sleeve is used for mounting a wheel shaft of a wheel; the power transmission shaft of the output gearbox close to the intermediate gearbox is coaxially connected with a second output shaft on the intermediate gearbox. The utility model has the characteristics of low noise, high stability and the like.

Description

Vehicle transmission system and vehicle

Technical Field

The utility model relates to the technical field of transmission structures, in particular to a vehicle transmission system and a vehicle.

Background

Chinese patent No. CN2858359Y discloses an amphibious all-terrain vehicle with a central engine, which comprises a boat-shaped vehicle body, an engine and a gearbox, wherein the engine is arranged in the middle of the vehicle body, the gearbox is positioned below the engine, two ends of an output shaft of the gearbox extend out of a box body from the left side and the right side, two ends of the output shaft of the gearbox are provided with duplex chain wheels, and the duplex chain wheels transmit power to wheel shafts of wheels forward and backward respectively through two chains. The power transmission device has the advantages that power is directly transmitted to the wheels on two sides of the automobile body from the left side and the right side through the chain wheel and chain transmission systems, transmission parts of a traditional automobile chassis part are omitted, the structure is simple, the weight is light, the operation is simple, convenient and flexible, and the power transmission device can run on shallow marshes, wetlands or muddy lands and can also run on jungles, snowfields, mountainous regions or gobi.

However, the sprocket type transmission structure has a large noise and a large torque, and is likely to cause a problem such as breakage of the chain or dropping of the chain after being elongated.

SUMMERY OF THE UTILITY MODEL

In view of the above, a first object of the present invention is to provide a vehicular transmission system, which has the characteristics of low noise, high stability, etc.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

a vehicle transmission system comprising:

a main gear box having a first input shaft and first output shafts respectively disposed at left and right sides of the main gear box; the first input shaft is used for being connected with a power source;

the gearbox group comprises an intermediate gearbox and at least two output gearboxes, the intermediate gearbox and the output gearboxes are arranged in a line at intervals, and the output gearboxes are distributed on two sides or one side of the intermediate gearbox; wherein,

the intermediate gear box is provided with a second input shaft and a second output shaft, and the second input shaft of the intermediate gear box is coaxially connected with the first output shaft on the main gear box on the corresponding side;

the output gearbox is provided with a power transmission shaft and a rotating shaft sleeve; the power transmission shaft and the rotating shaft sleeve rotate synchronously, and the axial directions of the power transmission shaft and the rotating shaft sleeve are vertical; the rotating shaft sleeve is used for mounting a wheel shaft of a wheel;

the power transmission shaft of the output gearbox close to the intermediate gearbox is coaxially connected with a second output shaft on the intermediate gearbox; when the number of the output gear boxes on the same side of the middle gear box is more than 1, the power transmission shafts between the two adjacent output gear boxes are coaxially connected.

Preferably, the output gear box positioned in the middle of the queue is provided with two power transmission shafts, and the two power transmission shafts are respectively positioned at the left side and the right side of the output gear box; the output gearbox at the end of the train has a power transmission shaft.

Preferably, the brake devices are arranged on the left side and the right side of the main gear box and used for limiting the rotation of the first output shaft.

Preferably, the first output shaft and the second input shaft are connected by a roller chain coupling.

Preferably, the second output shaft and the power transmission shaft are connected by a roller chain coupling.

Preferably, the power transmission shafts of adjacent two output gearboxes are connected by a cardan link.

A second object of the present invention is to provide a vehicle having low noise, high stability, and the like.

a vehicle comprises a frame, a control system, an engine, a vehicle body, wheels and the transmission system, wherein the control system, the engine, the vehicle body and the wheels are arranged on the frame; the first input shaft is in transmission connection with the output end of the engine through a clutch; the wheels are arranged on wheel shafts, and the wheel shafts are fixed on the rotating shaft sleeve.

Preferably, the frame is provided with an auxiliary bearing for fixing the wheel shaft.

The technical effects of the utility model are mainly reflected in the following aspects:

1. the gear box structure is adopted to transmit power, and coaxial power transmission is adopted among the gear boxes, so that a chain type structure is replaced, and a more stable power transmission effect is achieved;

2. the main gearbox can realize differential output at two sides and can realize smaller steering radius.

Drawings

FIG. 1 is a schematic view of the entire construction of a transmission system according to an embodiment;

FIG. 2 is a simplified schematic illustration of an alternate embodiment of the transmission system of the present embodiment;

FIG. 3 is a schematic view showing an internal structure of a main gear box in the embodiment;

FIG. 4 is a sectional view of a main gear box in the embodiment;

FIG. 5 is a schematic view showing an internal structure of the differential mechanism according to the embodiment;

FIG. 6 is a schematic view showing an internal structure of an intermediate gear box according to an embodiment;

FIG. 7 is a schematic view showing an internal structure of an output gearbox in the embodiment;

FIG. 8 is a schematic view of the mounting of the frame and the transmission system in the embodiment.

Reference numerals: 1. a main gearbox; 11. a first case; 12. a first input shaft; 121. a first bevel gear; 13. a first intermediate shaft; 131. a second bevel gear; 132. a first cylindrical gear; 14. a first output shaft; 151. a first main bearing; 152. a second main bearing; 16. a first bearing housing; 17. a second bearing housing; 2. an intermediate gear box; 21. a second case; 22. a second input shaft; 221. a third cylindrical gear; 23. a second intermediate shaft; 231. a fourth cylindrical gear; 232. a fifth cylindrical gear; 24. a third intermediate shaft; 241. a sixth cylindrical gear; 242. a third bevel gear; 25. a second output shaft; 251. a fourth bevel gear; 3. an output gearbox; 31. a third box body; 32. a power transmission shaft; 33. a fifth bevel gear; 34. rotating the shaft sleeve; 35. a sixth bevel gear; 36. a fourth bearing seat; 4. a brake device; 5. a roller chain coupling; 6. a gimbal link; 7. a differential mechanism; 71. a rotating base body; 711. a circular seat pan; 712. connecting blocks; 713. a first shaft hole; 714. a first bearing; 715. a first trepan boring; 716. a third bearing; 717. a first annular collar; 72. a second cylindrical gear; 721. a second shaft hole; 722. a second annular casing string; 723. a second trepan boring; 724. a fourth bearing; 725. a second bearing; 73. a first sun gear; 74. a second sun gear; 75. a planet shaft; 76. a planetary gear; 8. a frame; 81. an auxiliary bearing; 9. a clutch; 10. and (4) a wheel axle.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.

The first embodiment,

Referring to fig. 1, the present embodiment provides a vehicular transmission system, which mainly includes a main gearbox 1 and two gearbox sets respectively disposed at two sides of the main gearbox 1. The gear box group comprises an intermediate gear box 2 and at least two output gear boxes 3, the intermediate gear box 2 and the output gear boxes 3 are arranged in a row at intervals, the output gear boxes 3 are distributed on two sides or one side of the intermediate gear box 2, for example, the two sides are arranged in fig. 1, so that the whole transmission system is in an H shape, and the one side is arranged in fig. 2, so that the whole transmission system is in an H shape and is in an Jiong shape.

The structure of the main gearbox 1 will be described in detail below with reference to fig. 1 and 3 to 5:

the main gearbox 1 comprises a first box body 11, a first input shaft 12, a first intermediate shaft 13, a first output shaft 14 and a differential mechanism 7; the first input shaft 12 is used for connecting with a power source, which may be an engine or a motor, but the embodiment is not limited thereto. The first input shaft 12 is perpendicular to the axial direction of the first intermediate shaft 13, the first output shaft 14 is parallel to the axial direction of the first intermediate shaft 13, and the two first output shafts 14 are coaxially arranged; both ends of the first intermediate shaft 13 are mounted on the first case 11 through first bearing 714 seats 16, and the first intermediate shaft 13 is provided with a second bevel gear 131 and a first spur gear 132. The first input shaft 12 is provided with a first bevel gear 121, and the first bevel gear 121 is engaged with a second bevel gear 131.

The differential 7 includes a rotary base 71, a second cylindrical gear 72, a first sun gear 73, a second sun gear 74, and a plurality of pairs of planet shafts 75. The rotating base comprises a circular seat disk 711, a plurality of connecting blocks 712 are arranged on the inner side end surface of the circular seat disk 711 at intervals along the circumferential direction, and the inner side end surface of the second cylindrical gear 72 is fixed with the connecting blocks 712, for example, the connecting blocks can be connected through bolts. The middle part of the circular seat plate 711 is provided with a first shaft hole 713, a first bearing 714 is fixedly arranged in the first shaft hole 713, and one first output shaft 14 is fixedly sleeved with an inner ring of the first bearing 714; the middle part of the second cylindrical gear 72 is provided with a second shaft hole 721, a second bearing 725 is fixedly arranged in the second shaft hole 721, and the other first output shaft 14 is fixedly sleeved with an inner ring of the second bearing 725.

The second cylindrical gear 72 meshes with the first cylindrical gear 132, which serves as a power input to the differential 7 and is capable of driving the entire differential 7 to rotate.

The differential 7 is mounted at both ends thereof to the first case 11 through

second bearings

725 and 17, and the two first input shafts 12 are respectively passed through one of the bearing seats. Specifically, the outer end face of the circular seat disk 711 is provided with a first annular sleeve column 717, and the first annular sleeve column 717 is fixedly sleeved on the inner ring of the first main bearing 151 in one of the second bearing 725 seats 17; the outboard end face of the second spur gear 72 is provided with a second annular sleeve column 722, and the second annular sleeve column 722 is fixedly sleeved on the inner ring of the second main bearing 152 in the other second bearing 725 seat 17.

A mounting cavity is formed between the second cylindrical gear 72 and the rotary base body 71, and the first sun gear 73, the second sun gear 74 and the planet shaft 75 are all located in the mounting cavity. The end of one of the first output shafts 14 extends into the mounting cavity and is fixedly sleeved with the first sun gear 73, and the end of the other one of the first output shafts 14 extends into the mounting cavity and is fixedly sleeved with the second sun gear 74, so that the axes of the first output shaft 14 and the first sun gear 73 and the second sun gear 74 are overlapped. In addition, one end surface of the first sun gear 73 abuts against the inner race of the first bearing 714, and one end surface of the second sun gear 74 abuts against the inner race of the second bearing 725; a shaft body of the first output shaft 14 located on the other end surface side of the first sun gear 73 and the second sun gear 74 is provided with a stopper for limiting axial displacement of the first sun gear 73 and the second sun gear 74. In this way, the first and second sun gears 73, 74 serve as power output ports of the differential 7, and are used for driving the corresponding first output shafts 14 to rotate synchronously. In addition, the first sun gear 73 and the second sun gear 74 may be connected to the first output shaft 14 by a key connection, and the limiting member may be a snap spring.

The planetary shafts 75 are disposed around the first sun gear 73 and the second sun gear 74, and the axial direction of the planetary shafts 75 is parallel to the axial direction of the first output shaft 14, that is: the axial directions of the first output shaft 14, the first sun gear 73, the second sun gear 74, and the planetary shaft 75 are equal. Two ends of the planet shaft 75 are respectively connected with the circular seat plate 711 and the second cylindrical gear 72 in a rotating manner, specifically, the disk surface of the circular seat plate 711 is provided with a plurality of first sleeve holes 715 along the circumferential direction of the first shaft hole 713, and the end surface of the second cylindrical bearing is provided with a plurality of second sleeve holes 723 corresponding to the first sleeve holes 715 one by one along the circumferential direction of the second shaft hole 721; a third bearing 716 is arranged in the first sleeve hole 715, and a fourth bearing 724 is arranged in the second sleeve hole 723; one end of the planet shaft 75 is fixedly sleeved on the inner ring of the third bearing 716, and the other end is fixedly sleeved on the inner ring of the corresponding fourth bearing 724. The planetary shafts 75 are coaxially and fixedly provided with planetary gears 76, two planetary gears 76 on each pair of planetary shafts 75 are meshed with each other, one planetary gear 76 is meshed with the first sun gear 73, and the other planetary gear 76 is meshed with the second sun gear 74.

The brake devices 4 are arranged on the left side and the right side of the main gear box 1, and the brake devices 4 are used for limiting the rotation of the first output shaft 14; the brake device 4 is of a disc brake structure, the main body part of the disc brake device is arranged on the second bearing 725 seat 17, and a brake disc is arranged on a connecting structure between the first output shaft 14 and the intermediate gear box 2.

With reference to fig. 1, 2 and 6, the intermediate gearbox 2 comprises a second box 21, a second input shaft 22, a second intermediate shaft 23, a third intermediate shaft 24 and a second output shaft 25; the second input shaft 22, the second intermediate shaft 23, the third intermediate shaft 24 and the second output shaft 25 are all fixed on the second case 21 through a third bearing 716. One end of the second input shaft 22 is coaxially connected with the first output shaft 14 through a roller chain coupling 5, and the other end is provided with a third cylindrical gear 221, and the roller chain coupling 5 is also used for installing a brake disc of the brake device 4. The second intermediate shaft 23 and the third intermediate shaft 24 are parallel to the axis direction of the second input shaft 22, and a fourth cylindrical gear 231 and a fifth cylindrical gear 232 are coaxially and fixedly arranged on the second intermediate shaft 23; a sixth cylindrical gear 241 and a third bevel gear 242 are coaxially and fixedly arranged on the third intermediate shaft 24, and the sixth cylindrical gear 241 is meshed with the fourth cylindrical gear 231. The second output shaft 25 is perpendicular to the axial direction of the second input shaft 22, a fourth bevel gear 251 is mounted on the second output shaft 25, and the fourth bevel gear 251 is meshed with the third bevel gear 242. In this manner, when the second input shaft 22 rotates, the second output shaft 25 can also rotate synchronously. It is worth to be noted that, when the whole transmission system is in an H shape, as shown in fig. 1 and fig. 6, the two sides of the intermediate gear box 2 are both provided with the second output shafts 25, so that the output gear boxes 3 at the two sides can be connected; when the transmission system as a whole is shaped like Jiong, the intermediate gearbox 2 is then provided with a second output shaft 25 on one side only.

Referring to fig. 1, 2, and 7, the output gearbox 3 includes a third casing 31, a power transmission shaft 32, and a rotary sleeve 34; the power transmission shaft 32 and the rotation sleeve 34 are fixed to the third casing 31 by a fourth bearing 724 mount 36. The power transmission shaft 32 is perpendicular to the axial direction of the rotary sleeve 34. A fifth bevel gear 33 is coaxially fixed at one end of the power transmission, a sixth bevel gear 35 is coaxially fixed on the rotating shaft sleeve 34, and the fifth bevel gear 33 is meshed with the sixth bevel gear 35. The rotating shaft sleeves 34 are hollow and used for mounting wheel shafts of the wheels, specifically, the axes of the rotating shaft sleeves 34 of the two output gear boxes 3 with two opposite sides are overlapped, and when the wheel shafts of the wheels are mounted, the wheel shafts of the wheels are simultaneously inserted into the rotating shaft sleeves 34 of the two output gear boxes 3 along one direction and then fixed. The axle and the rotating sleeve 34 may be keyed. Therefore, the power transmission shaft 32 and the rotating sleeve 34 can rotate synchronously, and the rotating sleeve 34 rotates the wheel shaft of the wheel.

No matter the transmission system is H-shaped or Jiong-shaped as a whole, the other end of the power transmission shaft 32 close to the output gearbox 3 of the intermediate gearbox 2 is coaxially connected with the second output shaft 25 on the intermediate gearbox 2, and specifically can be connected through a roller chain coupling 5.

When the transmission system is Jiong-shaped as a whole, as shown in fig. 2 and 7, when the number of the output gear boxes 3 on the same side of the intermediate gear box 2 is greater than 1, the power transmission shafts 32 between two adjacent output gear boxes 3 are coaxially connected, specifically, can be connected through the universal joint connecting rod 6. The output gearbox 3 located at the middle of the line at this time has two power transmission shafts 32, and the two power transmission shafts 32 are located on the left and right sides of the output gearbox 3, respectively. The output gearbox 3 at the end of the line then has only one power transmission shaft 32.

Example II,

On the basis of the first embodiment, the present embodiment further provides a vehicle, which includes a frame 8, and a control system, an engine, a vehicle body, wheels, and the transmission system in the first embodiment, which are mounted on the frame 8.

Referring to fig. 8, the first input shaft is in transmission connection with the output end of the engine through a clutch 9; the wheels are mounted on an axle 10, and the axle 10 is fixed on the rotating shaft sleeve. The frame 8 is provided with an auxiliary bearing 81 for fixing the wheel axle 10, so that the wheel axle 10 is more stable.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.

Claims

1. A vehicular transmission system, comprising:

a main gear box (1) having a first input shaft (12) and first output shafts (14) respectively provided on left and right sides of the main gear box (1); the first input shaft (12) is used for being connected with a power source;

the gearbox group comprises an intermediate gearbox (2) and at least two output gearboxes (3), the intermediate gearbox (2) and the output gearboxes (3) are arranged in a line at intervals, and the output gearboxes (3) are distributed on two sides or one side of the intermediate gearbox (2); wherein,

the intermediate gearbox (2) is provided with a second input shaft (22) and a second output shaft (25), and the second input shaft (22) of the intermediate gearbox (2) is coaxially connected with the first output shaft (14) on the main gearbox (1) on the corresponding side;

the output gear box (3) is provided with a power transmission shaft (32) and a rotating shaft sleeve (34); the power transmission shaft (32) and the rotating shaft sleeve (34) rotate synchronously, and the axial directions of the power transmission shaft and the rotating shaft sleeve are vertical; the rotating shaft sleeve (34) is used for mounting a wheel shaft of a wheel;

a power transmission shaft (32) of the output gearbox (3) close to the intermediate gearbox (2) is coaxially connected with a second output shaft (25) on the intermediate gearbox (2); when the number of the output gear boxes (3) on the same side of the middle gear box (2) is more than 1, the power transmission shafts (32) between two adjacent output gear boxes (3) are coaxially connected.

2. A vehicular transmission system according to claim 1, wherein the output gear case (3) located at the middle of the queue has two power transmission shafts (32), and the two power transmission shafts (32) are respectively located on the left and right sides of the output gear case (3); the output gearbox (3) at the end of the train has a power transmission shaft (32).

3. A vehicle transmission system according to claim 1 or 2, wherein braking means (4) are provided on the left and right sides of the main gearbox (1), said braking means (4) being adapted to restrict rotation of the first output shaft (14).

4. A vehicle transmission system according to claim 1 or 2, wherein the first output shaft (14) and the second input shaft (22) are connected by a roller chain coupling (5).

5. A vehicle transmission system according to claim 1 or 2, wherein the second output shaft (25) is connected to the power transmission shaft (32) by means of a roller chain coupling (5).

6. A vehicular transmission system according to claim 1 or 2, wherein the power transmission shafts (32) of adjacent two output gear boxes (3) are connected by a universal joint link (6).

7. A vehicle, characterized by comprising a frame (8), and a steering system, an engine, a body, wheels and a transmission system according to any one of claims 1-6 mounted on the frame (8); the first input shaft is in transmission connection with the output end of the engine through a clutch (9); the wheels are arranged on a wheel shaft (10), and the wheel shaft (10) is fixed on the rotating shaft sleeve.

8. A vehicle according to claim 7, characterized in that the frame (8) is provided with auxiliary bearings (81) for fixing the wheel axle (10).