Steering hinge device and tractor

Abstract

The utility model provides a steering hinge device which is used on a tractor and comprises a traction front section and a traction rear section connected with the traction front section, and a first hinge device and a second hinge device which are oppositely arranged are further arranged between the traction front section and the traction rear section. The traction front section and the traction rear section are connected through the first hinge device and the second hinge device; the first hinge device comprises a first hinge pin, the second hinge device comprises a second hinge pin, and the first hinge pin and the second hinge pin are obliquely arranged. According to the steering hinge device of the structure, the first hinge device and the second hinge device are connected, and the first hinge pin and the second hinge pin are obliquely arranged, so that when the tractor runs, the stability of the tractor during straight running can be effectively improved, and the tractor can be automatically returned after steering. Therefore, the vehicle has the advantages of better stability during linear driving and better automatic aligning performance after steering. In addition, the utility model further provides a tractor.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a steering articulated device and a tractor. Background Art

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

[0003] The steering joint, a crucial component of a tractor, plays a crucial role in steering. However, existing steering joints often suffer from a short service life due to the significant friction between the front and rear sections. Furthermore, these joints also suffer from relatively poor stability when the tractor is traveling in a straight line. After turning, the tractor's self-centering performance is also relatively poor.

[0004] In summary, how to provide a steering articulated device with better stability when driving in a straight line, better automatic self-centering after turning, and longer service life, and a tractor including such a steering articulated device, has become a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a steering articulated device which has better stability during straight-line driving, better automatic self-centering performance after turning, and longer service life, and a tractor comprising the steering articulated device.

[0006] The solution of the present invention is achieved as follows: The present invention proposes a steering articulation device for use on a tractor, comprising a traction front section and a traction rear section connected to the traction front section, wherein a first articulation device and a second articulation device are provided between the traction front section and the traction rear section, and the traction front section and the traction rear section are connected via the first articulation device and the second articulation device; the first articulation device comprises a first articulation pin, and the second articulation device comprises a second articulation pin, and the first articulation pin and the second articulation pin are arranged at an angle. In the steering articulation device of this structure, the traction front section and the traction rear section are connected via the first articulation device and the second articulation device, and the first articulation pin and the second articulation pin are both arranged at an angle. When the tractor is traveling, it can effectively increase its stability when traveling in a straight line, and can automatically return the tractor to the center after it turns. Therefore, it has at least the advantages of better stability when traveling in a straight line and automatic self-centering after turning.

[0007] Another technical solution of the present invention is that, based on the above, one end of the first hinge pin is arranged on the traction front section, and the other end of the first hinge pin is arranged on the traction rear section.

[0008] Another technical solution of the present invention is that, based on the above, a wear-resistant sleeve is provided on the traction rear section, and one end of the first hinge pin is arranged in the wear-resistant sleeve and has an interference fit with the wear-resistant sleeve.

[0009] Another technical solution of the present invention is that, based on the above, a rotatable bearing is further sleeved on the first hinge pin, one side of the bearing is supported on the wear-resistant sleeve, and the bearing is a thrust ball bearing.

[0010] Another technical solution of the present invention is that, based on the above, one end of the first hinge pin is further provided with a fixed first pressure cover, and the first pressure cover is fixedly arranged on the traction front section.

[0011] Another technical solution of the present invention is that, based on the above, a first oil channel is further provided in the first hinge pin, and a first oil cup is further provided on the first pressure cover, and one end of the first oil cup is connected to the first oil channel.

[0012] Another technical solution of the present invention is that on the basis of the above, the second hinge pin is arranged opposite to the first hinge pin, one end of the second hinge pin is arranged on the traction front section, and the other end of the second hinge pin is arranged on the traction rear section.

[0013] Another technical solution of the present invention is that, based on the above, one end of the second hinge pin is further provided with a second pressure cover, and the second pressure cover is fixedly arranged on the traction front section.

[0014] Another technical solution of the present invention is that, based on the above, a second oil channel is further provided in the second hinge pin, and a second oil cup is further provided on the second gland, and one end of the second oil cup is connected to the second oil channel.

[0015] In addition, the present invention also provides a tractor, comprising a steering articulation device, wherein the steering articulation device is the steering articulation device described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0017] Figure 1 This is a structural diagram of a steering articulated device of the present invention;

[0018] Figure 2 This is a schematic front view of a steering articulated device of the present invention;

[0019] Figure 3 for Figure 1 Schematic diagram of the internal structure;

[0020] Figure 4 for Figure 1 Schematic diagram of the left side.

[0021] The corresponding relationship of the reference numerals is:

[0022] 1 Traction front section 2 First hinge pin 3 Bearing

[0023] 4 Wear-resistant sleeve 5 Traction rear section 6 Second hinge pin

[0024] 7 First oil cup 8 First gland 9 Steering arm

[0025] 10 Second oil cup 11 Second gland 12 First bolt

[0026] 13 Second bolt 14 First oil passage 15 Second oil passage DETAILED DESCRIPTION

[0027] The present invention is described in detail below in conjunction with the accompanying drawings. The description in this section is merely exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention. In addition, those skilled in the art can combine the features in the embodiments and different embodiments of the present invention accordingly based on the description of this document.

[0028] The embodiments of the present invention are as follows, see Figures 1 to 4 The steering articulated device shown is used on a tractor, and specifically includes a traction front section 1 and a traction rear section 5 connected to the traction front section 1. A first articulated device and a second articulated device are also provided between the traction front section 1 and the traction rear section 5, which are arranged opposite to each other. The traction front section 1 and the traction rear section 5 are connected by the first articulated device and the second articulated device. More specifically, the first articulated device includes a first articulated pin 2, and the second articulated device includes a second articulated pin 6, and the first articulated pin 2 and the second articulated pin 6 are arranged at an angle. The steering articulated device of this structure, in which the traction front section 1 and the traction rear section 5 are connected by the first articulated device and the second articulated device, and the first articulated pin 2 and the second articulated pin 6 are both arranged at an angle, can effectively increase the stability of the tractor when traveling in a straight line, and can automatically return the tractor to the center after it turns. Therefore, it has at least the advantages of better stability when traveling in a straight line and automatic self-centering after turning.

[0029] On the basis of the above embodiment, in another embodiment of the present invention, Figure 3 As shown, one end of the first hinge pin 2, that is, the lower end shown in the figure, is arranged on the traction front section 1, and the other end of the first hinge pin 2, that is, the upper end shown in the figure, is arranged on the traction rear section 5.

[0030] On the basis of the above embodiment, in another embodiment of the present invention, Figure 3 As shown, a wear-resistant sleeve 4 is provided on the traction rear section 5, one end of the first hinge pin 2, that is, the upper end shown in the figure, is provided in the wear-resistant sleeve 4, and the fit between the first hinge pin 2 and the wear-resistant sleeve 4 is an interference fit.

[0031] On the basis of the above embodiment, in another embodiment of the present invention, Figure 3 As shown, the first hinge pin 2 is also sleeved with a rotatable bearing 3. One side of the bearing 3, namely the upper side shown in the figure, abuts against the wear-resistant sleeve 4. The bearing 3 is preferably a thrust ball bearing. This arrangement effectively increases the axial load of the first hinge pin 2 and effectively reduces wear between the front traction section 1 and the rear traction section 5, thereby increasing the overall service life of the steering articulation device.

[0032] On the basis of the above embodiment, in another embodiment of the present invention, Figure 3 As shown, one end of the first hinge pin 2, that is, the lower end shown in the figure, is also provided with a fixed first pressure cover 8, and a plurality of first bolts 12 are provided on the first pressure cover 8, and the first pressure cover 8 is detachably fixed to the traction front section 1 through the first bolts 12.

[0033] On the basis of the above embodiment, in another embodiment of the present invention, Figure 3 As shown, a first oil passage 14 is further provided inside the first hinge pin 2, and a first oil cup 7 is further provided on the first pressure cover 8. One end of the first oil cup 7, i.e., the upper end shown in the figure, is connected to the first oil passage 14. Lubricating oil can be provided to the first oil passage 14 through the first oil cup 7.

[0034] On the basis of the above embodiment, in another embodiment of the present invention, Figure 3 As shown, the second hinge pin 6 is arranged opposite to the first hinge pin 2, one end of the second hinge pin 6, that is, the upper end shown in the figure is arranged on the traction front section 1, and the other end of the second hinge pin 6, that is, the lower end shown in the figure is arranged on the traction rear section 5.

[0035] On the basis of the above embodiment, in another embodiment of the present invention, Figure 3 As shown, one end of the second hinge pin 6, that is, the upper end shown in the figure, is further provided with a second pressure cover 11, and a plurality of second bolts 13 are provided on the second pressure cover 11, and the second pressure cover 11 is fixed to the traction front section 1 through the second bolts 13.

[0036] On the basis of the above embodiment, in another embodiment of the present invention, Figure 3As shown, a second oil passage 15 is further provided inside the second hinge pin 6, and a second oil cup 10 is further provided on the second gland 11. One end of the second oil cup 10, i.e., the lower end shown in the figure, is connected to the second oil passage 15, and lubricating oil can be provided to the second oil passage 15 through the second oil cup 10. In addition, as Figure 4 As shown, a steering arm 9 is further provided on the traction rear section 5 , specifically on the end facing away from the traction front section 1 .

[0037] The steering articulated device structured as described above connects the front traction section 1 and the rear traction section 5 via a first articulated device and a second articulated device. The first and second articulated pins 2 and 6 are both arranged at an angle. This effectively enhances the tractor's stability during straight-line travel and allows the tractor to automatically return to its original position after turning. Consequently, the device offers the advantages of both improved straight-line stability and improved automatic return to its original position after turning. Furthermore, the provision of a thrust ball bearing on the first articulated pin 2 effectively increases the axial load on the first articulated pin 2, reduces wear between the front traction section 1 and the rear traction section 5, and increases the overall service life of the steering articulated device.

[0038] In addition, the present invention also provides a tractor comprising a steering articulation device, wherein the steering articulation device is the steering articulation device described above. The tractor of this structure accordingly has the advantages of the steering articulation device described above.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A steering articulated device for a tractor, characterized in that: The traction mechanism comprises a front traction section and a rear traction section connected to the front traction section, wherein a first hinge device and a second hinge device are arranged opposite to each other, and the front traction section and the rear traction section are connected via the first hinge device and the second hinge device; The first hinge device includes a first hinge pin, and the second hinge device includes a second hinge pin. The first hinge pin and the second hinge pin are arranged obliquely.

2. The steering articulated device according to claim 1, characterized in that: One end of the first hinge pin is arranged on the traction front section, and the other end of the first hinge pin is arranged on the traction rear section.

3. The steering articulated device according to claim 2, characterized in that: A wear-resistant sleeve is provided on the traction rear section, and one end of the first hinge pin is arranged in the wear-resistant sleeve and has an interference fit with the wear-resistant sleeve.

4. The steering articulated device according to claim 3, characterized in that: The first hinge pin is also sleeved with a rotatable bearing, one side of the bearing is supported on the wear-resistant sleeve, and the bearing is a thrust ball bearing.

5. The steering articulated device according to claim 4, characterized in that: One end of the first hinge pin is further provided with a fixed first pressure cover, and the first pressure cover is fixedly arranged on the traction front section.

6. The steering articulated device according to claim 5, characterized in that: A first oil passage is further defined in the first hinge pin, and a first oil cup is further defined on the first gland. One end of the first oil cup is in communication with the first oil passage.

7. The steering articulated device according to claim 6, characterized in that: The second hinge pin is arranged opposite to the first hinge pin, one end of the second hinge pin is arranged on the traction front section, and the other end of the second hinge pin is arranged on the traction rear section.

8. The steering articulated device according to claim 7, characterized in that: One end of the second hinge pin is further provided with a second pressure cover, and the second pressure cover is fixedly arranged on the traction front section.

9. The steering articulated device according to claim 8, characterized in that: A second oil passage is further defined in the second hinge pin, and a second oil cup is further defined on the second gland. One end of the second oil cup is in communication with the second oil passage.

10. A tractor comprising a steering articulation device, characterized in that: The steering articulation device is the steering articulation device according to any one of claims 1 to 9.

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