Tractor steering column support

Abstract

The utility model relates to the technical field of tractors and steering control mechanisms thereof, in particular to a steering column support of a tractor. Comprising a bottom plate, the upper surface of the bottom plate is fixedly connected with a first hinge seat and a second hinge seat, each of the first hinge seat and the second hinge seat comprises two vertical plates symmetrically arranged on the two sides of the central axis of the bottom plate, the plate surfaces of the vertical plates are perpendicular to the bottom plate, hinge shaft holes are formed in the upper ends of the vertical plates, and sliding sleeves are installed in the hinge shaft holes; on the bottom plate, a center hole is formed between the two vertical plates of the first hinge seat, and a plurality of mounting holes are formed around the center hole. According to the steering column support, the sliding sleeve is installed in the hinged shaft hole, matching between the vertical plate and the hinged shaft can be optimized, a tractor steering column and an air spring used for supporting the steering column can operate flexibly, and friction resistance is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of a tractor and a steering control mechanism thereof, in particular to a tractor steering column bracket. Background Art

[0002] The steering column is required in the steering mechanism of tractors and various self-propelled agricultural and forestry machinery to transfer the rotational torque of the steering wheel to the steering gear below. The steering column is the bridge between the steering system and the steering gear. Through the steering column, the driver transfers the torque to the steering gear, driving the steering gear to achieve steering. Another Chinese patent of mine, 2023227873557, discloses "A Steering Column Adjustable Up and Down, Front and Back", with the announcement number CN220809539U. The steering column can not only adjust the height, but also adjust the front and rear inclination angle to adapt to drivers of different heights and different operating habits. In order to adapt to the installation of the steering column, it is necessary to set a steering column bracket on the driving position of the tractor, and hinge the steering column and the gas spring respectively through the two hinge seats on the steering column bracket. The inclination angle of the steering column can be changed when the gas spring is extended and retracted, and the hinge point of the steering column and the gas spring will also deflect at a certain angle. It was found in actual use that due to the low processing precision, the friction between the two hinge seats on the steering column bracket and the steering column or gas spring is relatively large, making it very difficult to adjust the inclination angle of the steering column. After long-term use, the hinge seats are severely worn, posing a hidden danger to safe driving. Utility Model Content

[0003] The utility model provides a tractor steering column bracket with firm structure and flexible operation to solve the above problems.

[0004] The technical solution adopted by the utility model to solve the technical problem is:

[0005] The utility model discloses a tractor steering column bracket, comprising a base plate, wherein a first hinge seat and a second hinge seat are fixedly connected to the upper surface of the base plate, wherein the first hinge seat and the second hinge seat each comprise two vertical plates symmetrically arranged on both sides of the central axis of the base plate, wherein the plate surface of the vertical plate is perpendicular to the base plate, wherein the upper end of the vertical plate is provided with a hinge shaft hole, wherein a sliding sleeve is installed in the hinge shaft hole, and a central hole is arranged on the base plate and between the two vertical plates of the first hinge seat, and a plurality of mounting holes are arranged around the central hole.

[0006] Through this solution, by installing a sliding sleeve in the hinge shaft hole, the cooperation between the vertical plate and the hinge shaft can be optimized, so that the tractor steering column and the gas spring used to support the steering column can operate flexibly and reduce friction resistance.

[0007] Preferably, the sliding sleeve is a circular tubular structure.

[0008] Through this solution, the sliding sleeve of the circular tubular structure is easy to assemble and has low production cost.

[0009] Preferably, the sliding sleeve is a tubular structure with an outer wall being a hexagonal column structure and an inner cavity being a cylinder.

[0010] Through this solution, the sliding sleeve is accurately positioned and is not easy to fall off.

[0011] Preferably, the sliding sleeve is a needle bearing.

[0012] Through this solution, the needle roller bearing can further reduce the friction resistance.

[0013] Due to the adoption of the above structure, the steering column bracket can optimize the cooperation between the vertical plate and the hinge shaft by installing a sliding sleeve in the hinge shaft hole, so that the tractor steering column and the gas spring used to support the steering column can operate flexibly and reduce friction resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model.

[0015] Figure 2 yes Figure 1 A schematic cross-sectional view of an embodiment.

[0016] Figure 3 It is a structural diagram of the usage status. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to directions away from the geometric center of a specific component.

[0018] like Figure 1 , Figure 2As shown, the tractor steering column bracket described in the utility model includes a base plate 1 made of steel plate, and the base plate 1 is used to be installed on the tractor frame, below the driver's seat, and used in conjunction with the tractor steering column. The upper surface of the base plate 1 is fixedly connected with a first hinge seat 2 and a second hinge seat 3, and the first hinge seat 2 and the second hinge seat 3 each include two vertical plates symmetrically arranged on both sides of the central axis of the base plate 1, wherein the first hinge seat 2 is slightly higher and is used to install the tractor steering column 8, and the second hinge seat 3 is slightly lower and is used to install the gas spring 7 for adjusting the inclination angle of the tractor steering column 8. The vertical plate is made of steel plate, and the plate surface of the vertical plate is perpendicular to the base plate 1 and welded to the upper surface of the base plate 1. The upper end of the vertical plate is provided with a hinge shaft hole, which is used to install the hinge shaft connecting the tractor steering column 8 or the gas spring 7. A sliding sleeve 4 is installed in the hinge shaft hole, and the sliding sleeve 4 can optimize the tolerance fit between the hinge shaft hole and the hinge shaft and reduce friction. The sliding sleeve 4 can be as follows Figure 2 The circular tubular structure on the second hinge seat 3 can also be as follows Figure 2 The outer wall installed on the first hinge seat 2 is a hexagonal column structure, and the inner cavity is a cylindrical tubular structure. Of course, a needle bearing can also be used as the sliding sleeve 4.

[0019] A center hole 5 is provided on the bottom plate 1 between the two vertical plates of the first articulated seat 2, and the center hole 5 is used to install the steering gear of the tractor, so that the steering gear installed under the driver's seat can pass through the center hole 5 and be connected to the tractor steering column 8 through a universal joint. A plurality of mounting holes 6 are provided around the center hole 5, and the mounting holes 6 are used to fix the steering gear, and the bolts in the mounting holes 6 fix the outer shell of the steering gear to the bottom plate 1.

[0020] like Figure 3 As shown, when in use, the bottom plate 1 is mounted on the tractor frame, the upper end of the first articulated seat 2 is connected to the lower end of the tractor steering column 8 through a hinge shaft, the upper end of the second articulated seat 3 is connected to the lower end of the gas spring 7 through a hinge shaft, and the upper end of the gas spring 7 is hinged to the side wall of the tractor steering column 8. The inclination angle of the tractor steering column 8 can be changed by adjusting the length of the gas spring 7.

[0021] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustration only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A tractor steering column bracket, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is fixedly connected to a first hinge seat (2) and a second hinge seat (3); the first hinge seat (2) and the second hinge seat (3) each comprise two vertical plates symmetrically arranged on both sides of the central axis of the base plate (1); the plate surface of the vertical plate is perpendicular to the base plate (1); the upper end of the vertical plate is provided with a hinge shaft hole, and a sliding sleeve (4) is installed in the hinge shaft hole; a center hole (5) is arranged on the base plate (1) and between the two vertical plates of the first hinge seat (2); and a plurality of mounting holes (6) are arranged around the center hole (5).

2. A tractor steering column bracket according to claim 1, characterized in that: The sliding sleeve (4) is a circular tubular structure.

3. A tractor steering column bracket according to claim 1, characterized in that: The sliding sleeve (4) is a tubular structure with an outer wall in the shape of a hexagonal prism and an inner cavity in the shape of a cylinder.

4. A tractor steering column bracket according to claim 1, characterized in that: The sliding sleeve (4) is a needle roller bearing.

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