A tractor

Abstract

The utility model provides a tractor, including traction front section and traction rear section, traction front section and traction rear section are connected through the hinged section activity, be equipped with the front axle on the traction front section, be equipped with the rear axle on the traction rear section, the both ends of front axle are equipped with first brake hub and second brake hub respectively, the both ends of rear axle are equipped with third brake hub and fourth brake hub respectively, be equipped with first oil cylinder between first brake hub and second brake hub, one end of first oil cylinder is connected with first brake hub activity, the other end of first oil cylinder is connected with second brake hub activity, be equipped with second oil cylinder between third brake hub and fourth brake hub, first oil cylinder and second oil cylinder intercommunication, the tractor still includes rotatable first transition arm and second transition arm, this structure's tractor, its structure is relatively more simple, and the turning radius is smaller, and the turning efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery, and in particular to a tractor. Background Technology

[0002] In recent years, with the continuous development of agricultural technology, agricultural machinery of various structures, such as tractors, has been increasingly widely used in agricultural production activities.

[0003] Tractors are among the most widely used agricultural machines, serving as both transport vehicles and traction vehicles. In many parts of my country, due to road conditions and the small, fragmented distribution of farmland, the requirements for tractor steering are relatively higher. Current tractors typically employ front-wheel steering or slalom steering, but generally, they suffer from relatively complex structures, large turning radii, and low steering efficiency.

[0004] In summary, how to provide a tractor with a simple structure, small turning radius, and high turning efficiency has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a tractor with a simple structure, small turning radius, and high turning efficiency.

[0006] The solution of this utility model is implemented as follows: This utility model proposes a tractor, including a front traction section and a rear traction section, which are movably connected by a hinge. The front traction section is provided with a front axle, and the rear traction section is provided with a rear axle. A first brake hub and a second brake hub are respectively provided at both ends of the front axle, and a third brake hub and a fourth brake hub are respectively provided at both ends of the rear axle. A first hydraulic cylinder for steering is provided between the first and second brake hubs, with one end of the first hydraulic cylinder movably connected to the first brake hub and the other end movably connected to the second brake hub. A second hydraulic cylinder for steering is provided between the third and fourth brake hubs, and the first and second cylinders are connected. One end of the second hydraulic cylinder is movably connected to the third brake hub, and the other end is movably connected to the fourth brake hub. The tractor also includes a rotatable first transition arm and a second transition arm, with one end of the first transition arm movably connected to the front traction section and one end of the second transition arm movably connected to the rear traction section. With this structure, in tillage mode, when the front wheels of the tractor turn, the first transition arm drives the rear traction section to rotate around the hinge, thus achieving articulated steering. Therefore, compared with existing tractors, its structure is relatively simpler, and its turning radius is smaller, resulting in higher turning efficiency.

[0007] Another technical solution of this utility model is that, based on the above, the tractor further includes a second tie rod, one end of which is movably connected to the second transition arm, and the other end of which is movably connected to the traction rear section.

[0008] Another technical solution of this utility model is that, based on the above, the tractor further includes a fourth tie rod, one end of which is movably connected to the first transition arm, and the other end of which is movably connected to the fourth brake hub.

[0009] Another technical solution of this utility model is that, based on the above, the tractor further includes a first tie rod, one end of which is movably connected to the second brake hub, and the other end of which is movably connected to the first transition arm.

[0010] Another technical solution of this utility model is that, based on the above, the tractor further includes a third tie rod, one end of which is movably connected to the traction rear section, and the other end of which is movably connected to the second transition arm.

[0011] Another technical solution of this utility model is that, based on the above, a first cross arm is provided on one side of the first brake drum, a second cross arm is provided on one side of the second brake drum, one end of the first oil cylinder is movably connected to the first cross arm, and the other end of the first oil cylinder is movably connected to the second cross arm.

[0012] Another technical solution of this utility model is that, based on the above, a third cross arm is provided on one side of the third brake drum, a fourth cross arm is provided on one side of the fourth brake drum, one end of the second oil cylinder is movably connected to the third cross arm, and the other end of the second oil cylinder is movably connected to the fourth cross arm.

[0013] Another technical solution of this utility model is that, based on the above, a first straight arm is also provided on one side of the second brake hub, and when the second brake hub rotates, it drives the first straight arm to rotate; a second straight arm is also provided on one side of the fourth brake hub, and when the fourth brake hub rotates, it drives the second straight arm to rotate.

[0014] Another technical solution of this utility model is that, based on the above, the tractor further includes a hydraulic system, which is connected to the first oil cylinder and the second oil cylinder respectively through pipelines, and the pipelines are also equipped with shut-off valves. Attached Figure Description

[0015] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0016] Figure 1 This is a schematic diagram of the structure of a tractor in tillage mode according to the present invention.

[0017] The correspondence between the reference numerals in the attached figures is as follows:

[0018] 1. First brake drum; 2. First crossarm; 3. First hydraulic cylinder

[0019] 4 Second crossarm 5 Second brake hub 6 First straight arm

[0020] 7 First pull rod 8 First transition arm 9 Second pull rod

[0021] 10 Rear Traction Section 11 Articulated Joint 12 Front Traction Section

[0022] 13 First locking pin 14 Second locking pin 15 Third pull rod

[0023] 16 Second transition arm 17 Third brake hub 18 Third cross arm

[0024] 19 Second hydraulic cylinder 20 Fourth tie rod 21 Second straight arm

[0025] 22 Fourth crossarm 23 Shut-off valve 24 Hydraulic system

[0026] 25 Fourth brake hub 26 Front axle 27 Rear axle Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings. This description is merely illustrative and explanatory, and should not be construed as limiting the scope of protection of the present invention. Furthermore, those skilled in the art can combine the features in the embodiments described herein and in different embodiments according to the description in this document.

[0028] The embodiments of this utility model are as follows, please refer to them. Figure 1The tractor shown specifically includes a front traction section 12 and a rear traction section 10, which are movably connected by a hinge 11. The front traction section 12 has a front axle 26, and the rear traction section 10 has a rear axle 27. The upper and lower ends of the front axle 26 are respectively equipped with a first brake hub 1 and a second brake hub 5, and the upper and lower ends of the rear axle 27 are respectively equipped with a third brake hub 17 and a fourth brake hub 25. A first hydraulic cylinder 3, which serves as a steering cylinder, is located between the first brake hub 1 and the second brake hub 5. One end of the first hydraulic cylinder 3, the upper end shown in the figure, is movably connected to the first brake hub 1, and the other end of the first hydraulic cylinder 3, the lower end shown in the figure, is movably connected to the second brake hub 5. A second hydraulic cylinder 19, which also serves as a steering cylinder, is located between the third brake hub 17 and the fourth brake hub 25. The first hydraulic cylinder 3 and the second hydraulic cylinder 19 are connected and can operate synchronously. One end of the second hydraulic cylinder 19, as shown in the figure, is movably connected to the third brake hub 17, and the other end of the second hydraulic cylinder 19, as shown in the figure, is movably connected to the fourth brake hub 25. The tractor also includes a rotatable first transition arm 8 and a second transition arm 15. One end of the first transition arm 8, as shown in the figure, is movably connected to the traction front section 12. One end of the second transition arm 16, as shown in the figure, is movably connected to the traction rear section 10. With this structure, in tillage mode, when the tractor's front wheels turn, the first transition arm 8 drives the traction rear section 10 to rotate around the hinge part 11, thus achieving articulated steering. Therefore, compared with existing tractor structures, its structure is relatively simpler, and its turning radius is smaller, resulting in higher turning efficiency.

[0029] Based on the above embodiments, in another embodiment of the present invention, such as Figure 1 As shown, the tractor also includes a second tie rod 9. One end of the second tie rod 9, i.e. the left end shown in the figure, is movably connected to the first transition arm 8, and the other end of the second tie rod 9, i.e. the right end shown in the figure, is movably connected to the traction rear section 10.

[0030] Based on the above embodiments, in another embodiment of the present invention, such as Figure 1 As shown, the tractor also includes a fourth tie rod 20. One end of the fourth tie rod 20, i.e. the left end shown in the figure, is movably connected to the second transition arm 16, and the other end of the fourth tie rod 20, i.e. the right end shown in the figure, is movably connected to the fourth brake hub 25.

[0031] Based on the above embodiments, in another embodiment of the present invention, such as Figure 1 As shown, the tractor also includes a first tie rod 7. One end of the first tie rod 7, i.e. the lower end shown in the figure, is movably connected to the second brake drum 5, and the other end of the first tie rod 7, i.e. the right end shown in the figure, is movably connected to the first transition arm 8. When the second brake drum 5 rotates, the first tie rod 7 can drive the first transition arm 8 to rotate.

[0032] Based on the above embodiments, in another embodiment of the present invention, such as Figure 1 As shown, the tractor also includes a third tie rod 15. One end of the third tie rod 15, i.e. the upper left end shown in the figure, is movably connected to the traction rear section 10, and the other end of the third tie rod 15, i.e. the lower right end shown in the figure, is movably connected to the second transition arm 16.

[0033] Based on the above embodiments, in another embodiment of the present invention, such as Figure 1 As shown, a first crossarm 2 is provided on one side of the first brake hub 1, i.e., the lower side shown in the figure; a second crossarm 4 is provided on one side of the second brake hub 5, i.e., the upper side shown in the figure; one end of the first hydraulic cylinder 3, i.e., the upper end shown in the figure, is movably connected to the first crossarm 2; and the other end of the first hydraulic cylinder 3, i.e., the lower end shown in the figure, is movably connected to the second crossarm 4. When the first hydraulic cylinder 3 extends or retracts, it drives the first brake hub 1 and the second brake hub 5 to rotate through the first crossarm 2 and the second crossarm 4, respectively.

[0034] Based on the above embodiments, in another embodiment of the present invention, such as Figure 1 As shown, a third cross arm 18 is provided on one side of the third brake hub 17, i.e., the lower side shown in the figure, and a fourth cross arm 22 is provided on one side of the fourth brake hub 25, i.e., the upper side shown in the figure. One end of the second cylinder 19, i.e., the lower end shown in the figure, is movably connected to the third cross arm 18, and the other end of the second cylinder 19, i.e., the lower end shown in the figure, is movably connected to the fourth cross arm 22. When the second cylinder 19 extends or retracts, it drives the third brake hub 17 and the fourth brake hub 25 to rotate through the second cross arm 4 and the fourth cross arm 22 respectively.

[0035] Based on the above embodiments, in another embodiment of the present invention, such as Figure 1 As shown, a first straight arm 6 is also provided on one side of the second brake hub 5, that is, the upper side shown in the figure. When the second brake hub 5 rotates, it can drive the first straight arm 6 to rotate. A second straight arm 21 is also provided on one side of the fourth brake hub 25, that is, the upper side shown in the figure. When the fourth brake hub 25 rotates, it drives the second straight arm 21 to rotate.

[0036] Based on the above embodiments, in another embodiment of the present invention, such as Figure 1 As shown, the tractor also includes a hydraulic system 24, which is connected to the first cylinder 3 and the second cylinder 19 via pipelines, and a shut-off valve 23 is also provided on the pipelines.

[0037] This type of tractor, in tillage mode, such as Figure 1As shown, when the front wheel of the tractor turns, the first transition arm 8 drives the traction rear section 10 to rotate around the hinge part 11, thus achieving articulated steering. Therefore, overall, it has the advantages of a relatively simpler structure, a smaller turning radius, and higher turning efficiency.

[0038] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A tractor, characterized in that, It includes a front traction section and a rear traction section, which are movably connected by a hinge. The front traction section is provided with a front axle, and the rear traction section is provided with a rear axle. The two ends of the front axle are respectively provided with a first brake hub and a second brake hub, and the two ends of the rear axle are respectively provided with a third brake hub and a fourth brake hub. A first hydraulic cylinder for steering is provided between the first brake drum and the second brake drum. One end of the first hydraulic cylinder is movably connected to the first brake drum, and the other end of the first hydraulic cylinder is movably connected to the second brake drum. A second hydraulic cylinder for steering is provided between the third and fourth brake drums. The first and second hydraulic cylinders are connected. One end of the second hydraulic cylinder is movably connected to the third brake drum, and the other end of the second hydraulic cylinder is movably connected to the fourth brake drum. The tractor also includes a rotatable first transition arm and a second transition arm, one end of the first transition arm being movably connected to the front traction section, and one end of the second transition arm being movably connected to the rear traction section.

2. The tractor according to claim 1, characterized in that, The tractor also includes a second tie rod, one end of which is movably connected to the first transition arm, and the other end of which is movably connected to the traction rear section.

3. The tractor according to claim 2, characterized in that, The tractor also includes a fourth tie rod, one end of which is movably connected to the second transition arm, and the other end of which is movably connected to the fourth brake hub.

4. The tractor according to claim 3, characterized in that, The tractor also includes a first tie rod, one end of which is movably connected to the second brake hub, and the other end of which is movably connected to the first transition arm.

5. The tractor according to claim 4, characterized in that, The tractor also includes a third tie rod, one end of which is movably connected to the traction rear section, and the other end of which is movably connected to the second transition arm.

6. The tractor according to claim 5, characterized in that, The first brake drum is provided with a first cross arm on one side, and the second brake drum is provided with a second cross arm on one side. One end of the first cylinder is movably connected to the first cross arm, and the other end of the first cylinder is movably connected to the second cross arm.

7. The tractor according to claim 6, characterized in that, The third brake drum is provided with a third cross arm on one side, and the fourth brake drum is provided with a fourth cross arm on one side. One end of the second cylinder is movably connected to the third cross arm, and the other end of the second cylinder is movably connected to the fourth cross arm.

8. The tractor according to claim 7, characterized in that, The second brake drum is also provided with a first straight arm on one side. When the second brake drum rotates, it drives the first straight arm to rotate. A second straight arm is also provided on one side of the fourth brake hub. When the fourth brake hub rotates, it drives the second straight arm to rotate.

9. The tractor according to claim 8, characterized in that, The tractor also includes a hydraulic system, which is connected to the first cylinder and the second cylinder via pipelines, and the pipelines are also equipped with shut-off valves.

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