A tractor and agricultural machinery

Abstract

This utility model discloses a tractor and agricultural machinery. The tractor includes a front traction section and a rear traction section, which are movably connected by a hinge. The front traction section has a front axle, and the rear traction section has a rear axle. The front axle has a first brake hub and a second brake hub at its two ends, respectively, and a connecting rod is provided between the first and second brake hubs. The rear axle has a third brake hub and a fourth brake hub at its two ends, respectively. The tractor also includes a first tie rod device and a second tie rod device. One end of the first tie rod device is connected to a second brake arm, and the other end is connected to the rear traction section. One end of the second tie rod device is connected to the front traction section, and the other end is connected to the fourth brake hub. A telescopic member is provided between the third and fourth brake hubs. This tractor structure has a small turning radius and higher turning efficiency.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery, and in particular to a tractor and agricultural machinery. 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, as well as agricultural machinery including this tractor, 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, as well as agricultural machinery including this tractor.

[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. The two ends of the front axle are respectively provided with a first brake hub and a second brake hub, and a connecting rod is provided between the first brake hub and the second brake hub. The two ends of the rear axle are respectively provided with a third brake hub and a fourth brake hub. The tractor also includes a first tie rod device and a second tie rod device. One end of the first tie rod device is connected to the second brake arm, and the other end of the first tie rod device is connected to the rear traction section. One end of the second tie rod device is connected to the front traction section, and the other end of the second tie rod device is connected to the fourth brake hub. A telescopic member is provided between the third brake hub and the fourth brake hub. One end of the telescopic member is connected to the third brake hub, and the other end of the telescopic member is connected to the fourth brake hub. When the telescopic member extends or retracts, it drives the third brake hub and the fourth brake hub to turn synchronously. In this tractor structure, when the rear wheels turn, the steering front section can be rotated around the hinge by the second tie rod device, thereby achieving articulated steering. During this process, under the action of the first tie rod assembly, the first and second brake drums remain stationary. Therefore, compared with existing tractors, it has advantages such as simple structure, small turning radius, and high turning efficiency.

[0007] Another technical solution of this utility model is that, based on the above, the tractor further includes a first crossarm and a second crossarm arranged opposite to each other, the first crossarm being disposed on the first brake drum, the second crossarm being disposed on the second brake drum, one end of the connecting rod being connected to the first crossarm, and the other end of the connecting rod being connected to the second crossarm.

[0008] Another technical solution of this utility model is that, based on the above, the first tie rod assembly includes a first tie rod and a first transition arm, one end of the first transition arm is movably connected to the traction front section, one end of the first tie rod is movably connected to the second brake hub, and the other end of the first tie rod is movably connected to the first transition arm.

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

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

[0011] Another technical solution of this utility model is that, based on the above, the second tie rod assembly further includes a fourth tie rod, one end of which is connected to the fourth brake hub, and the other end of which is connected to the other end of the second transition arm.

[0012] Another technical solution of this utility model is that, based on the above, a first straight arm is provided on one side of the second brake hub, and the end of the first pull rod near the first brake hub is connected to the first straight arm; a second straight arm is provided on one side of the fourth brake hub, and the end of the fourth pull rod near the fourth brake hub is connected to the second straight arm.

[0013] Another technical solution of this utility model is that, based on the above, the tractor further includes a third crossarm and a fourth crossarm arranged opposite to each other, the third crossarm being disposed on the third brake drum, and the fourth crossarm being disposed on the fourth brake drum.

[0014] Another technical solution of this utility model is that, based on the above, the telescopic component is a steering cylinder, one end of the steering cylinder is connected to the third cross arm, and the other end of the steering cylinder is connected to the fourth cross arm.

[0015] On the other hand, this utility model also proposes an agricultural machine, including a tractor and a carriage disposed at one end of the tractor, wherein the tractor is the tractor described above. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of a tractor and its structure according to the present invention.

[0018] 1. First brake hub 2. First crossarm 3. Linkage

[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 Steering cylinder 20 Fourth tie rod 21 Second straight arm

[0025] 22 Fourth crossarm 23 Hydraulic system 24 Fourth brake hub

[0026] 25 front axle 26 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 1 The tractor shown includes a front traction section 12 and a rear traction section 10 connected to each other. The front traction section 12 and the rear traction section 10 are movably connected by a hinge 11. The front traction section 12 is equipped with a front axle 25, and the rear traction section 10 is equipped with a rear axle 26. The upper and lower ends of the front axle 25 are respectively equipped with a first brake hub 1 and a second brake hub 5. A connecting rod 3 is also provided between the first brake hub 1 and the second brake hub 5 for connecting purposes. The two ends of the rear axle 26 are respectively equipped with a third brake hub 17 and a fourth brake hub 24. The tractor also includes a first tie rod device and a second tie rod device. One end of the first tie rod device is connected to a second brake arm, and the other end of the first tie rod device is connected to the rear traction section 10. One end of the second tie rod device is connected to the front traction section 12, and the other end of the second tie rod device is connected to the fourth brake hub 24. A telescopic component is also provided between the third brake hub 17 and the fourth brake hub 24. One end of the telescopic component is connected to the third brake hub 17, and the other end is connected to the fourth brake hub 24. When the telescopic component extends or retracts, it drives the third brake hub 17 and the fourth brake hub 24 to turn synchronously. In this tractor structure, when the rear wheels of the tractor turn, the steering front section can be rotated around the hinge part 11 through the second tie rod device, thereby realizing articulated steering. During this process, under the action of the first tie rod assembly, the first brake hub 1 and the second brake hub 5 are kept stationary. Therefore, compared with the existing structure of tractors, it has the advantages of simple structure, small turning radius, and high turning efficiency.

[0029] Based on the above embodiments, in another embodiment of the present invention, such as Figure 1As shown, the tractor also includes a first crossarm 2 and a second crossarm 4 arranged opposite to each other. The first crossarm 2 is mounted on the first brake drum 1, and the second crossarm 4 is mounted on the second brake drum 5. One end of the connecting rod 3, i.e. the upper end shown in the figure, is connected to the first crossarm 2, and the other end of the connecting rod 3, i.e. the lower end shown in the figure, is connected to the second crossarm 4. When the second crossarm 4 is subjected to force, it can drive the first crossarm 2 to rotate through the connecting rod 3.

[0030] Based on the above embodiments, in another embodiment of the present invention, such as Figure 1 As shown, the first tie rod assembly includes a first tie rod 7 and a first transition arm 8. One end of the first transition arm 8, i.e. the upper end shown in the figure, is movably connected to the traction front section 12. One end of the first tie rod 7, i.e. the left end shown in the figure, is movably connected to the second brake drum 5. 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 first transition arm 8 swings, the belt drives the second brake drum 5 to rotate through the first tie rod 7.

[0031] Based on the above embodiments, in another embodiment of the present invention, such as Figure 1 As shown, the first tie rod assembly 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 other end of the first transition arm 8, i.e., the lower end shown in the figure. 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. When the second tie rod 9 is subjected to force, it can drive the second transition arm 16 to rotate around the traction front section 12, and at the same time drive the first tie rod to move.

[0032] Based on the above embodiments, in another embodiment of the present invention, such as Figure 1 As shown, the second tie rod assembly includes a third tie rod 15 and a second transition arm 16. One end of the second transition arm 16, i.e. the upper end shown in the figure, is movably connected to the traction rear section 10. One end of the third tie rod 15, i.e. the left end shown in the figure, is connected to the traction front section 12. The other end of the third tie rod 15, i.e. the right end shown in the figure, is movably connected to the other end of the second transition arm 16, i.e. the lower end shown in the figure.

[0033] Based on the above embodiments, in another embodiment of the present invention, such as Figure 1 As shown, the second tie rod assembly also includes a fourth tie rod 20. One end of the fourth tie rod 20, i.e. the right end shown in the figure, is connected to the fourth brake hub 24, and the other end of the fourth tie rod 20, i.e. the left end shown in the figure, is connected to the other end of the second transition arm 16, i.e. the lower end shown in the figure.

[0034] Based on the above embodiments, in another embodiment of the present invention, such as Figure 1As shown, a first straight arm 6 is also provided on one side of the second brake hub 5, and the first pull rod is connected to the first straight arm 6 at one end near the first brake hub 1, i.e., the left end shown in the figure. A second straight arm 21 is also provided on one side of the fourth brake hub 24, and the fourth pull rod 20 is connected to the second straight arm 21 at one end near the fourth brake hub 24, i.e., the right end shown in the figure.

[0035] Based on the above embodiments, in another embodiment of the present invention, such as Figure 1 As shown, the tractor also includes a third crossarm 18 and a fourth crossarm 22 arranged opposite to each other. The third crossarm 18 is disposed on the third brake drum 17, and the fourth crossarm 22 is disposed on the fourth brake drum 24.

[0036] Based on the above embodiments, in another embodiment of the present invention, such as Figure 1 As shown, for the telescopic component, a steering cylinder 19 is preferred. One end of the steering cylinder 19, i.e. the upper end shown in the figure, is connected to the third cross arm 18, and the other end of the steering cylinder 19, i.e. the lower end shown in the figure, is connected to the fourth cross arm 22.

[0037] In addition, the tractor includes a hydraulic system 23, which is connected to the steering cylinder 19 and provides pressurized oil to it. When the steering cylinder 19 extends upward, it drives the third brake drum 17 and the fourth brake drum 24 to rotate counterclockwise. At this time, the rear wheels begin to steer. The fourth brake drum 24 drives the fourth tie rod 20 to move to the left via the second straight arm 21. The fourth stop bar pushes the third tie rod 15 via the second transition arm 16, thereby pushing the traction front section 12 to rotate around the hinge part 11, achieving articulated steering. During this process, the first brake drum 1 and the second brake drum 5, i.e., the front wheels, remain stationary.

[0038] In addition, a locking pin is provided between the front traction section 12 and the rear traction section 10 to lock them together. Specifically, the locking pin includes a first locking pin 13 and a second locking pin 14. The front traction section 12 and the rear traction section 10 can be fixed together by the first locking pin 13 and the second locking pin 14. At this time, it is impossible to achieve bending and turning.

[0039] Furthermore, this utility model also proposes an agricultural machine, including a tractor and a carriage disposed at one end of the tractor, specifically the tractor described above.

[0040] Agricultural machinery with this structure, correspondingly, possesses the advantages of the aforementioned tractors.

[0041] 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 a connecting rod is provided between the first brake hub and the second brake hub. The two ends of the rear axle are respectively provided with a third brake hub and a fourth brake hub. The tractor also includes a first tie rod device and a second tie rod device, one end of the first tie rod device is connected to the second brake arm, and the other end of the first tie rod device is connected to the traction rear section; One end of the second tie rod device is connected to the traction front section, and the other end of the second tie rod device is connected to the fourth brake hub; A telescopic member is also provided between the third brake hub and the fourth brake hub. One end of the telescopic member is connected to the third brake hub, and the other end of the telescopic member is connected to the fourth brake hub. When the telescopic member extends or retracts, it drives the third brake hub and the fourth brake hub to turn synchronously.

2. The tractor according to claim 1, characterized in that, The tractor also includes a first crossarm and a second crossarm disposed opposite to each other. The first crossarm is disposed on the first brake hub, and the second crossarm is disposed on the second brake hub. One end of the connecting rod is connected to the first crossarm, and the other end of the connecting rod is connected to the second crossarm.

3. The tractor according to claim 2, characterized in that, The first tie rod assembly includes a first tie rod and a first transition arm. One end of the first transition arm is movably connected to the traction front section, one end of the first tie rod is movably connected to the second brake hub, and the other end of the first tie rod is movably connected to the first transition arm.

4. The tractor according to claim 3, characterized in that, The first tie rod assembly further includes a second tie rod, one end of which is movably connected to the other end of the first transition arm, and the other end of which is movably connected to the traction rear section.

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

6. The tractor according to claim 5, characterized in that, The second tie rod assembly further includes a fourth tie rod, one end of which is connected to the fourth brake hub, and the other end of which is connected to the other end of the second transition arm.

7. The tractor according to claim 6, characterized in that, The second brake hub is also provided with a first straight arm on one side, and the end of the first pull rod near the first brake hub is connected to the first straight arm; A second straight arm is also provided on one side of the fourth brake hub, and the end of the fourth tie rod near the fourth brake hub is connected to the second straight arm.

8. The tractor according to claim 7, characterized in that, The tractor also includes a third and a fourth lateral arm disposed opposite to each other, the third lateral arm being disposed on the third brake hub and the fourth lateral arm being disposed on the fourth brake hub.

9. The tractor according to claim 8, characterized in that, The telescopic component is a steering cylinder, one end of which is connected to the third cross arm, and the other end of which is connected to the fourth cross arm.

10. An agricultural machine, comprising a tractor and a carriage disposed at one end of the tractor, characterized in that, The tractor is the tractor according to any one of claims 1 to 9.

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