CN215360922U

CN215360922U - Crawler-type agricultural vehicle

Info

Publication number: CN215360922U
Application number: CN202023323786.0U
Authority: CN
Inventors: 周志; 陈震霖
Original assignee: Changsha Sanglaite Agricultural Mechanical Equipment Co Ltd
Current assignee: Changsha Sanglaite Agricultural Mechanical Equipment Co Ltd
Priority date: 2020-02-14
Filing date: 2020-12-31
Publication date: 2021-12-31
Anticipated expiration: 2030-12-31

Abstract

The utility model provides a crawler-type agricultural vehicle which comprises an engine, a gearbox, a transmission shaft, a drive axle and a crawler, wherein the first end of the gearbox is connected with one end of the engine, the first end of the transmission shaft is connected with the second end of the gearbox, the second end of the transmission shaft is connected with the drive axle, drive wheels are arranged at two ends of the drive axle, and the crawler is sleeved on the drive wheels. The crawler-type agricultural vehicle of this structure, the engine during operation, for the gearbox provides power, transmit power for the transmission shaft after the gearbox variable speed, the transmission shaft is power transmission to transaxle, the transaxle drives two drive wheels respectively rotatory, when the drive wheel is rotatory, it is rotatory to drive the track, and then it advances or retreats to realize, it has changed the tradition mode through belt transmission power on the track transportation, directly on power transmission to transaxle through the transmission axle, consequently, it has the transmission efficiency higher, use cost is lower, and the fast advantage of speed of traveling.

Description

Crawler-type agricultural vehicle

Technical Field

The utility model relates to the field of transport machinery, in particular to a crawler-type agricultural vehicle.

Background

In recent years, with the continuous development of science and technology, various agricultural machines are widely used, such as a crawler-type rotary cultivator, a crawler-type transport vehicle and the like, and are widely used in production and life of vast rural areas at present.

Present widely used crawler-type rotary cultivator, crawler-type transport vechicle etc. all transmit power through the belt, and transmission efficiency is also comparatively low to, after long-time work, because the load is big, consequently the belt generates heat easily, and the life of belt is also comparatively short, and work efficiency is also lower. In addition, the currently used braking modes of the crawler-type transport vehicle and the like are mainly to separate a clutch to enable the vehicle to push power, but not to actually brake, so that the running speed is relatively slower and the running efficiency is low.

In conclusion, how to provide a crawler-type agricultural vehicle with high transmission efficiency, more agile braking and higher working efficiency becomes a technical problem which needs to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the crawler-type agricultural vehicle is high in transmission efficiency, more agile in braking and higher in working efficiency.

The solution of the utility model is realized by the following steps: the utility model provides a crawler-type agricultural vehicle which comprises an engine, a gearbox, a transmission shaft, a drive axle and a crawler, wherein the first end of the gearbox is connected with one end of the engine, the first end of the transmission shaft is connected with the second end of the gearbox, the second end of the transmission shaft is connected with the drive axle, drive wheels are arranged at two ends of the drive axle, and the crawler is sleeved on the drive wheels. The crawler-type agricultural vehicle of this structure, the engine during operation provides power for the gearbox, transmits power for the transmission shaft after the gearbox speed change, and the transmission shaft transmits power to transaxle, and the transaxle drives two drive wheels respectively rotatory, and when the drive wheel was rotatory, it was rotatory to drive the track, and then realized advancing or retreating. Compared with the crawler-type agricultural vehicle with the existing structure, the crawler-type agricultural vehicle changes the traditional mode that power is transmitted through a belt in crawler transportation, and directly transmits the power to a drive axle through a transmission shaft, so that the crawler-type agricultural vehicle has the advantages of higher transmission efficiency, lower use cost, relatively higher running speed and the like.

On the basis, the crawler-type agricultural vehicle further comprises a frame, a plurality of supporting wheel groups for bearing are arranged on the frame, a plurality of supporting wheels for supporting a crawler are further arranged on the frame, and the crawler is sleeved on the supporting wheels.

On the basis, the other technical scheme of the utility model is that the supporting wheel set comprises a bearing frame and a bearing wheel, one end of the bearing frame is movably connected with the rack, the bearing wheel is arranged at the other end of the bearing frame, and the crawler belt is sleeved on the bearing wheel.

On the basis, the crawler-type agricultural vehicle further comprises a guide wheel for guiding the crawler, the guide wheel is arranged at one end, far away from the driving wheel, of the frame, and the crawler is sleeved on the guide wheel.

On the basis, the crawler-type agricultural vehicle further comprises a tensioning device for tensioning the crawler, wherein one end of the tensioning device is fixedly connected with the frame, and the other end of the tensioning device is connected with the guide wheel.

On the basis, the crawler-type agricultural vehicle further comprises a plurality of sets of brake systems, each set of brake system comprises a brake chamber arranged on the drive axle and a quick release valve used for controlling the brake chamber, and the quick release valve is arranged on one side of the brake chamber and communicated with the brake chamber through a pipeline.

In another technical solution of the present invention, on the basis of the above, the brake system further includes an air pump for pressurizing air, and the air pump is communicated with the quick release valve through a pipeline and provides compressed air for the brake air chamber.

In addition to the above, another technical solution of the present invention is that the brake system further includes a cam shaft, and a brake hub disposed in the drive axle, wherein one end of the cam shaft is disposed in the brake hub, and one end of the cam shaft is disposed on the brake chamber.

On the basis, the number of the brake air chambers, the quick release valves and the cam shafts is two respectively, and the two brake air chambers, the quick release valves and the cam shafts are used for controlling two driving wheels at two ends of the driving axle respectively; and a differential mechanism for playing a role of differential is also arranged in the drive axle.

On the basis, the gearbox is also provided with a plurality of operating levers, and the operating levers comprise two brake operating levers which are respectively used for controlling the two driving wheels.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.

FIG. 1 is a schematic structural view of a tracked agricultural vehicle according to the present invention;

fig. 2 is a schematic structural view of a drive axle portion of fig. 1.

The corresponding relation of the reference signs is as follows:

1 engine 2 gearbox 3 brake

4 brake operating lever 5 drive shaft 6 drive axle

7 driving wheel, 8 crawler belt and 9 track roller set

10 riding wheel 11 tensioning device 12 guide wheel

13 camshaft 14 brake air chamber 15 quick release valve

16 frame 17 bearing frame 18 bearing wheel

Detailed Description

The present invention will now be described in detail with reference to the drawings, which are given by way of illustration and explanation only and should not be construed to limit 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 is as follows, please refer to the crawler-type agricultural vehicle and the components thereof shown in fig. 1 to 2, the crawler-type agricultural vehicle specifically comprises an engine 1, a gearbox 2, a transmission shaft 5, a drive axle 6 and a crawler 8, wherein a first end, namely, a left end shown in the figure, of the gearbox 2 is connected with a right end of the engine 1, a first end, namely, a left end shown in the figure, of the transmission shaft 5 is connected with a second end, namely, a right end, of the gearbox 2, a second end, namely, a right end, of the transmission shaft 5 is connected with the drive axle 6, two ends of the drive axle 6 are provided with drive wheels 7, and the crawler 8 is sleeved on the drive wheels 7. The crawler-type agricultural vehicle of this structure, engine 1 during operation provides power for gearbox 2, transmits power for transmission shaft 5 after 2 variable speed of gearbox, and transmission shaft 5 transmits power to transaxle 6, and transaxle 6 drives two drive wheels 7 rotations respectively, and when drive wheel 7 was rotatory, it was rotatory to drive track 8, and then realized advancing or retreating. Compared with the crawler-type agricultural vehicle with the existing structure, the crawler-type agricultural vehicle changes the traditional mode that power is transmitted through a belt in the transportation of the crawler 8, and directly transmits the power to the drive axle 6 through the transmission shaft, so that the crawler-type agricultural vehicle has the advantages of higher transmission efficiency, lower use cost, relatively higher running speed and the like.

On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 1, the tracked agricultural vehicle further includes a horizontally disposed frame 16, the frame 16 is provided with a plurality of supporting wheel sets 9 for supporting the track 8, and the frame 16 is also provided with a plurality of supporting wheels 10 for supporting the track 8, and the track 8 is sleeved on the supporting wheels 10. During the running process of the crawler-type agricultural vehicle, the supporting wheel set 9 is arranged on the crawler 8, and the riding wheels 10 support the crawler 8 from the upper part of the frame 16, so that the friction or motion interference between the crawler 8 and other parts of the crawler-type agricultural vehicle caused by the dead weight or overlong length of the crawler 8 is avoided.

On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 1, the supporting wheel set 9 includes a bearing frame 17 and a bearing wheel 18, and one end of the bearing frame 17, i.e. the upper end shown in the figure, is movably connected to the frame 16, specifically, may be connected by a hinge shaft. The bearing wheels 18 are disposed at the other end of the bearing frame 17, i.e. the lower end thereof, and in each of the thrust wheel sets 9, the number of the bearing wheels 18 is several, preferably two, and when two bearing wheels 18 are used, the stability of the thrust wheel set 9 is better.

In addition to the above-mentioned embodiments, in another embodiment of the present invention, as shown in fig. 1, the track 8 transportation further includes a guide wheel 12 for guiding the track 8, the guide wheel 12 is disposed at an end of the frame 16 away from the driving wheel 7, the driving wheel 7 is disposed at a right end as viewed in the drawing, and the guide wheel 12 is disposed at a left end as viewed in the drawing.

On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 1, the crawler-type agricultural vehicle further includes a tensioning device 11 for tensioning the crawler 8, one end, i.e., the right end in the drawing, of the tensioning device 11 is fixedly connected to the frame 16, and the other end, i.e., the left end in the drawing, of the tensioning device 11 is connected to the guide wheels 12, the number of the guide wheels 12 is two, and the number of the tensioning device 11 is correspondingly two.

On the basis of the above embodiment, in another embodiment of the utility model, as shown in fig. 2, the crawler-type agricultural vehicle further includes a plurality of sets of brake systems, each set of brake system includes a brake chamber 14 disposed on the drive axle 6 and a quick release valve 15 for controlling the brake chamber 14, the quick release valve 15 is specifically disposed on one side of the brake chamber 14 and is communicated with the brake chamber 14 through a pipeline, and during braking, the quick release valve 15 can provide power for the brake chamber 14 in time, so as to realize braking on the drive axle 6.

On the basis of the above embodiment, in another embodiment of the present invention, the brake system further includes an air pump (not shown in the figure) for pressurizing air, and the air pump is communicated with the quick release valve 15 through a pipeline, that is, the air pump is used as a power source to deliver compressed air to the quick release valve 15, so as to provide the compressed air to the brake air chamber 14.

On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 2, the braking system further includes a camshaft 13 and a brake hub (not shown) disposed in the drive axle 6, one end of the camshaft 13, i.e., the upper end shown in the drawing, is disposed in the brake hub, the other end of the camshaft 13, i.e., the lower end shown in the drawing, is disposed on the brake chamber 14, the camshaft 13 is provided with a cam, when the brake chamber 14 works, the camshaft 13 is driven to rotate, the cam of the camshaft 13 props open the brake shoes, so that the brake hub is locked, and braking is achieved.

On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 2, the number of the brake chamber 14, the quick release valve 15, and the cam shaft 13 is two, and the two are respectively used for controlling the driving wheels 7 at the two ends of the driving axle 6, and a differential for differential action is further arranged in the driving axle 6. During the running process of the crawler-type agricultural vehicle, the two sets of braking systems can work independently and also can work simultaneously, when the crawler-type agricultural vehicle works independently, under the action of the differential mechanism, the crawler-type agricultural vehicle can realize steering, and when the two sets of braking systems work simultaneously, the crawler-type agricultural vehicle is braked.

On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 1, the transmission 2 is further provided with a plurality of operating levers, each operating lever includes a shift operating lever for operating a shift and a brake operating lever 4 for controlling the driving wheel 7, the number of the brake operating levers 4 is two, and one end of each of the two brake operating levers 4 is provided with a brake 3 for controlling two sets of brake systems. During the transportation of the crawler 8, any one of the brake levers 4 is operated to realize the steering of the crawler-type agricultural vehicle, and if the two brake levers 4 are operated simultaneously, the braking of the crawler-type agricultural vehicle is realized.

The crawler-type agricultural vehicle with the structure has the advantages of high transmission efficiency, quicker braking, more convenient steering and lower use cost on the whole, as mentioned above.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a crawler-type agricultural vehicle, its characterized in that, includes engine (1), gearbox (2), transmission shaft (5), transaxle (6) and track (8), the first end of gearbox (2) with the one end of engine (1) is connected, the first end of transmission shaft (5) with the second end of gearbox (2) is connected, the second end of transmission shaft (5) with transaxle (6) are connected, the both ends of transaxle (6) are equipped with drive wheel (7), track (8) cover is located on drive wheel (7).

2. The tracked agricultural vehicle according to claim 1, further comprising a frame (16), wherein a plurality of supporting wheel sets (9) for bearing are arranged on the frame (16), a plurality of supporting wheels (10) for supporting the track (8) are further arranged on the frame (16), and the track (8) is sleeved on the supporting wheels (10).

3. The tracked agricultural vehicle according to claim 2, wherein the bogie wheel set (9) comprises a bearing frame (17) and bearing wheels (18), one end of the bearing frame (17) is movably connected with the frame (16), the bearing wheels (18) are arranged at the other end of the bearing frame (17), and the track (8) is sleeved on the bearing wheels (18).

4. The tracked agricultural vehicle according to claim 3, further comprising guide wheels (12) for guiding the track (8), the guide wheels (12) being arranged at an end of the frame (16) remote from the drive wheel (7), the track (8) being sleeved on the guide wheels (12).

5. The tracked agricultural vehicle according to claim 4, further comprising a tensioning device (11) for tensioning the track (8), the tensioning device (11) being fixedly connected at one end to the frame (16) and at the other end to the guide wheel (12).

6. The tracked agricultural vehicle according to claim 5, further comprising a plurality of sets of brake systems, each set of brake system comprising a brake chamber (14) provided on the drive axle (6) and a quick release valve (15) for controlling the brake chamber (14), the quick release valve (15) being provided on one side of the brake chamber (14) and communicating with the brake chamber (14) through a pipeline.

7. The tracked agricultural vehicle of claim 6, wherein the braking system further comprises an air pump for pressurizing air, the air pump communicating with the quick release valve (15) through a conduit and providing compressed air to the brake chamber (14).

8. The tracked agricultural vehicle of claim 7, wherein the braking system further comprises a camshaft (13) and a brake hub arranged in the drive axle (6), wherein one end of the camshaft (13) is arranged in the brake hub and one end of the camshaft (13) is placed on the brake chamber (14).

9. The tracked agricultural vehicle according to claim 8, wherein the number of the brake chambers (14), the quick release valves (15) and the cam shafts (13) is two, and the two brake chambers, the quick release valves and the cam shafts are respectively used for controlling two driving wheels (7) at two ends of the driving axle (6);

and a differential mechanism for playing a role of differential is also arranged in the drive axle (6).

10. The tracked agricultural vehicle according to claim 9, wherein the gearbox (2) is further provided with a plurality of operating levers, including two brake levers (4) for controlling two drive wheels (7), respectively.