Gearbox waist twisting piece, waist twisting chassis and waist twisting tractor

Abstract

The gearbox waist twisting piece comprises a first shell and a second shell, the first shell is arranged below the second shell, the upper end of the first shell is connected with the second shell in a left-right swinging and rotating mode, the first shell is used for being connected with a rear axle shell, and the second shell is used for being connected with a front axle shell. The second shell is used for being connected with a gearbox shell, the left-right swinging axis of the first shell and a power input shaft of a gearbox are coaxially distributed, the portion, located between a front axle and a rear axle, of the chassis is in swinging connection through the gearbox waist twisting piece, and therefore the whole chassis can adapt to the running trafficability of mountainous areas and complex road conditions. Meanwhile, the comfort is good.

Description

Technical Field

[0001] The utility model belongs to the field of tractors, and in particular relates to a gearbox twisting waist component, a twisting waist chassis and a twisting waist tractor. Background Art

[0002] For hilly and mountainous areas, currently most of them are non-specialized small tractors. Due to the complex and rugged road conditions in hilly and mountainous areas, there are great safety hazards, great difficulty in driving, and extremely poor riding comfort. The twisting waist tractor has a twistable chassis, which makes it have good passability, less bumps, and good safety in complex road conditions or terrains. However, twisting waist tractors are still rare in the domestic market. Although the document number is CN108482484A "A method for arranging a bending steering and twisting waist swinging mechanism on a vehicle", the twisting waist structure is complex. Utility Model Content

[0003] In order to solve the above technical problems, one of the purposes of the utility model is to provide a gearbox twist waist component with a simple structure.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a gearbox twisting waist part, including shell one and shell two, the shell one is arranged below the shell two, the upper end of the shell one is connected to the shell two for left and right swinging, the shell one is used to connect to the rear axle housing, the shell two is used to connect to the gearbox housing, and the axis of the left and right swinging of the shell one is coaxially distributed with the power input shaft of the gearbox.

[0005] The beneficial effect of the above technical solution is that the front axle and the rear axle on the chassis are connected by the gearbox torsion piece, so that the entire chassis can adapt to the driving performance in mountainous areas and complex road conditions, and at the same time its comfort is good.

[0006] The above technical solution also includes a shaft sleeve, which is arranged along the front-to-back direction and installed at the lower end of the shell body 2. The upper end of the shell body 1 is rotatably connected to the shaft sleeve, and the power input shaft coaxially passes through the shaft sleeve.

[0007] The beneficial effect of the above technical solution is that: in this way, the housing 1 and the housing 2 can be twisted through the shaft sleeve, and the shaft sleeve also passes through as the power input shaft of the gearbox, thereby avoiding interference with the power input shaft of the gearbox.

[0008] In the above technical solution, the lower end of the shell body 2 is provided with two first connecting ears spaced apart in the front-to-back direction, and the two first connecting ears have first axial holes that penetrate front and back and are aligned front and back. A second connecting ear is protrudingly provided in the middle of the upper end of the shell body 1, and the second connecting ear has a second axial hole that penetrates front and back, and the second connecting ear is located between the two first connecting ears, and the second axial hole and the two first axial holes are aligned front and back and inserted into the sleeve, and the sleeve is connected to the two first connecting ears, and the second connecting ear is rotatably connected to the sleeve.

[0009] The beneficial effect of the above technical solution is that its structure is simple, so that the swing connection effect of the shell 1, the shell 2 and the shaft sleeve is better.

[0010] In the above technical solution, the lower ends of both sides of the shell 2 are provided with skirts protruding downwards, the shell 1 is located between the two skirts, and the two skirts are used to limit the left and right swinging angles of the shell 1.

[0011] The beneficial effect of the above technical solution is that the swinging amplitude of the shell can be limited by the two skirts.

[0012] In the above technical solution, the two skirts are arranged symmetrically on the left and right.

[0013] The beneficial effects of the above technical solution are: its structure is simple and its appearance is good.

[0014] In the above technical solution, a buffer is also provided on each side of the two skirts that are close to each other, and the buffer is used to perform elastic buffering when the shell swings to be close to each other.

[0015] The beneficial effect of the above technical solution is that the buffer member can be provided to prevent the shell from swinging left or right and violently colliding with the skirt.

[0016] In the above technical solution, each of the skirts is provided with a screw hole along the left and right direction, and a bolt is threadedly connected to each screw hole, and the threaded end of the bolt faces between the two skirts. The bolt is tightened or loosened to adjust the left and right swing angle range of the shell.

[0017] The beneficial effect of the above technical solution is that the amplitude of the left-right swing of the housing can be adjusted by tightening or loosening the bolts.

[0018] The second purpose of the utility model is to provide a waist twisting chassis with a simple structure and capable of achieving waist twisting.

[0019] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a twisting waist chassis, including the gearbox twisting waist part as described above.

[0020] The beneficial effects of the above technical solution are: its structure is simple and can adapt to meet the passability requirements of complex terrain.

[0021] Another object of the utility model is to provide a waist-twisting tractor suitable for use in mountainous areas.

[0022] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a twisting waist tractor, comprising the twisting waist chassis as described above.

[0023] The beneficial effects of the above technical solution are: it has a simple structure, good passability and good comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a cross-sectional view of the gearbox twisting waist member described in Example 1 of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the gearbox twisting member in Example 1 of the utility model when the housing 1, housing 2 and the shaft sleeve are separated;

[0026] Figure 3 This is a schematic diagram of the case 1 in the embodiment 1 of the present utility model when it swings to the left;

[0027] Figure 4 This is a schematic diagram of the case 1 in the embodiment 1 of the utility model when the case 1 is centered;

[0028] Figure 5 This is a schematic diagram of the case 1 in the embodiment 1 of the present utility model when it swings to the right;

[0029] Figure 6 This is a schematic diagram of the structure when a buffer is provided in Embodiment 2 of the present utility model;

[0030] Figure 7 This is a schematic diagram of the structure of bolts provided in Example 3 of the utility model.

[0031] In the figure: 1 housing 1; 11 second connecting ear; 12 second shaft hole; 2 housing 2; 21 first connecting ear; 22 first shaft hole; 23 skirt; 231 screw hole; 232 bolt; 24 buffer; 3 gearbox housing; 31 power input shaft; 4 shaft sleeve. DETAILED DESCRIPTION

[0032] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0033] Example 1

[0034] like Figure 1 As shown, this embodiment provides a gearbox twisting member, including a shell 1 and a shell 2, wherein the shell 1 is arranged below the shell 2, and the upper end of the shell 1 is connected to the shell 2 2 for left-right swinging, the shell 1 is used to connect to the rear axle shell, and the shell 2 2 is used to connect to the gearbox housing 3, and the axis of the left-right swinging of the shell 1 is coaxially distributed with the power input shaft 31 of the gearbox, so that the gearbox twisting member is swiveled between the front axle and the rear axle on the chassis, so that the entire chassis can adapt to the driving passability in mountainous areas and complex road conditions, and at the same time its comfort is excellent.

[0035] like Figure 1 and Figure 2 As shown, the above technical solution also includes a sleeve 4, which is arranged along the front-to-back direction and installed on the lower end of the shell 2, the upper end of the shell 1 is rotatably connected to the sleeve 4, and the power input shaft 31 coaxially passes through the sleeve 4, so that the shell 1 and the shell 2 can be twisted through the sleeve, and the sleeve also passes through as the power input shaft of the gearbox to avoid interference with the power input shaft of the gearbox.

[0036] like Figure 1 and Figure 2 As shown, in the above technical solution, two first connecting ears 21 are arranged at intervals along the front-to-back direction at the lower end of the shell 2, and the two first connecting ears 21 have first axial holes 22 that penetrate front to back and are aligned front to back. A second connecting ear 11 is protruded from the middle of the upper end of the shell 1, and the second connecting ear 11 has a second axial hole 12 that penetrates front to back. The second connecting ear 11 is located between the two first connecting ears 21, and the second axial hole 12 and the two first axial holes 22 are aligned front to back and inserted into the sleeve 4. The sleeve 4 is connected to the two first connecting ears 21, and the second connecting ear 11 is rotatably connected to the sleeve 4. The structure is simple, so that the swinging connection effect of the shell 1, the shell 2 and the sleeve is better.

[0037] like Figure 3-Figure 5 As shown, in the above technical solution, the lower ends of both sides of the shell 2 are provided with skirts 23 protruding downward, and the shell 1 is located between the two skirts 23. The two skirts 23 are used to limit the left and right swinging angles of the shell 1, so that the swinging amplitude of the shell can be limited by the two skirts.

[0038] In the above technical solution, the two skirt edges 23 are symmetrically arranged, and the structure is simple and the appearance is good.

[0039] Example 2

[0040] Same as Example 1, except that Figure 6 As shown, in the above technical solution, a buffer 24 is also provided on the side where the two skirts 23 are close to each other. The buffer 24 is used to perform elastic buffering when the shell 1 swings close to each other. By providing the buffer, the shell 1 can be prevented from swinging left and right to collide violently with the skirt. The buffer 24 can be an oil pressure buffer or a spring buffer.

[0041] Example 3

[0042] Same as Example 1, except that Figure 7 As shown, in the above technical solution, a screw hole 231 is provided on each of the skirt edges 23 along the left-right direction, and a bolt 232 is threadedly connected to each of the screw holes 231, and the threaded end of the bolt 232 faces between the two skirt edges 23. The bolt 232 is tightened or loosened to adjust the range of the angle of the housing 1 to the left and right, so that the amplitude of the housing 1 to the left and right can be adjusted by tightening or loosening the bolt.

[0043] Example 4

[0044] This embodiment provides a twisting chassis, including the gearbox twisting member as described in Example 1, Example 2 or Example 3, which has a simple structure and can adapt to meet the passability requirements of complex terrain.

[0045] Example 5

[0046] This embodiment provides a twisting waist tractor, including the twisting waist chassis as described in Example 4, which has a simple structure, good passability and good comfort.

[0047] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A gearbox twisting member, characterized in that: The invention comprises a housing 1 (1) and a housing 2 (2), wherein the housing 1 (1) is arranged below the housing 2 (2), the upper end of the housing 1 (1) is connected to the housing 2 (2) for left-right swinging, the housing 1 (1) is connected to the rear axle housing, the housing 2 (2) is connected to the gearbox housing (3), and the axis of the left-right swinging of the housing 1 (1) is coaxially distributed with the power input shaft (31) of the gearbox.

2. The gearbox twisting member according to claim 1, characterized in that: It also includes a shaft sleeve (4), which is arranged along the front-to-back direction and installed on the lower end of the second shell (2), the upper end of the first shell (1) is rotatably connected to the shaft sleeve (4), and the power input shaft (31) coaxially passes through the shaft sleeve (4).

3. The gearbox twisting member according to claim 2, characterized in that: The lower end of the second shell (2) is provided with two first connecting ears (21) spaced apart in the front-to-back direction, and the two first connecting ears (21) have first axial holes (22) penetrating front to back and aligned front to back. A second connecting ear (11) is protrudingly provided in the middle of the upper end of the first shell (1), and the second connecting ear (11) has a second axial hole (12) penetrating front to back. The second connecting ear (11) is located between the two first connecting ears (21), and the second axial hole (12) and the two first axial holes (22) are aligned front to back and inserted into the shaft sleeve (4). The shaft sleeve (4) is connected to the two first connecting ears (21), and the second connecting ear (11) is rotatably connected to the shaft sleeve (4).

4. The gearbox twisting member according to claim 3, characterized in that: The lower ends of both sides of the shell 2 (2) are provided with skirt edges (23) protruding downwards, and the shell 1 (1) is located between the two skirt edges (23). The two skirt edges (23) are used to limit the angle of the shell 1 (1) to swing left and right.

5. The gearbox twisting member according to claim 4, characterized in that: The two skirt edges (23) are arranged symmetrically.

6. The gearbox twisting member according to claim 4, characterized in that: A buffer (24) is also provided on the side where the two skirts (23) are close to each other. The buffer (24) is used to perform elastic buffering when the shell (1) swings to approach each other.

7. The gearbox twisting member according to claim 4, characterized in that: A screw hole (231) is provided on each of the skirt edges (23) along the left-right direction, and a bolt (232) is threadedly connected to each of the screw holes (231), and the threaded end of the bolt (232) faces between the two skirt edges (23). The bolt (232) is tightened or loosened to adjust the range of the angle of the housing (1) to swing left and right.

8. A waist twisting chassis, characterized in that: It comprises a gearbox twisting member as described in any one of claims 1 to 7.

9. A twisting tractor, characterized in that: It comprises the twisting waist chassis as claimed in claim 8.

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