Steering column damping mechanism and tractor

Abstract

The utility model relates to a steering column damping mechanism and a tractor, and relates to the field of steering columns, the steering column damping mechanism comprises a steering column, a column fixing support, a steering gear box fixing support seaming, a first damping piece and a second damping piece, the steering column is fixedly connected with the column fixing support, and the first damping piece is clamped between the steering column and the column fixing support; the tubular column fixing support is fixedly connected with the steering gear box fixing support in a welded mode, and a second damping piece is clamped between the tubular column fixing support and the steering gear box fixing support. The steering column has the advantages that the steering column is fixedly connected with the steering gear box fixing support welding part through the column fixing support, a double-damping structure of the first damping part and the second damping part is arranged, no connecting gap exists when the steering column is installed, shaking of a steering wheel is avoided, and resonance of the steering wheel and a chassis can be buffered. The steering column damping mechanism is of a simple detachable structure and is flexible in adaptation, low in cost, high in reliability and high in practicability.

Description

Technical Field

[0001] The utility model relates to the field of steering columns, in particular to a steering column shock absorbing mechanism and a tractor. Background Art

[0002] The steering column of a tractor is used to connect the steering wheel and the steering gear, and transmit the movement of the steering wheel to the steering gear.

[0003] If the steering column and the steering gear fixing bracket are welded and completely tightened, the steering wheel will resonate with the tractor chassis, and the driver's hands will feel obvious vibrations, affecting the operating experience.

[0004] If there is a gap between the welding of the steering column and the steering gear fixing bracket, the steering wheel will shake, affecting the accuracy of operation.

[0005] Therefore, it is necessary to develop a new steering column shock absorption mechanism to find a balance between the steering wheel shaking and the resonance between the steering wheel and the chassis, and to optimize the steering column operation experience. Utility Model Content

[0006] The technical problem to be solved by the utility model is how to reduce the vibration of the steering column.

[0007] The technical solution of the present invention to solve the above technical problems is as follows: a steering column shock-absorbing mechanism, including a steering column, a column fixing bracket, a welded steering gear fixing bracket, a first shock-absorbing component and a second shock-absorbing component, the steering column is fixedly connected to the column fixing bracket, and the first shock-absorbing component is sandwiched between the two, the column fixing bracket is welded and fixedly connected to the steering gear fixing bracket, and the second shock-absorbing component is sandwiched between the two.

[0008] The beneficial effects of this utility model include: the steering column is welded to the steering gear mounting bracket and fixedly connected via the column mounting bracket, and a dual damping structure comprising a first damping member and a second damping member is provided, thereby eliminating gaps in the connection of the steering column during installation, thereby preventing steering wheel shake and damping resonance between the steering wheel and the chassis. The steering column damping mechanism is a simple, detachable structure that offers flexible adaptability, low cost, high reliability, and high practicality.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the end of the steering column has a flange, the flange is fixedly connected to the column fixing bracket, and the first shock absorber is clamped between the flange and the column fixing bracket.

[0011] The beneficial effect of adopting the above further solution is that the steering column is fixedly connected to the column fixing bracket via the flange, and the structure is stable.

[0012] Furthermore, the first shock-absorbing component is a shock-absorbing pad.

[0013] Furthermore, the steering gear fixing bracket is welded with two spaced-apart cross beams, both ends of the column fixing bracket are fixedly connected to the two cross beams respectively, and the second shock absorber is provided between the end of the column fixing bracket and the corresponding cross beam.

[0014] Furthermore, the middle portion of the column fixing bracket has a downwardly recessed bent portion, and the steering column is fixedly connected to the bent portion.

[0015] The beneficial effects of adopting the above further solution are: the column fixing bracket is a concave-shaped bent plate, which is convenient for positioning and installing the steering column, and the column fixing bracket has high structural strength.

[0016] Furthermore, the steering column shock absorber mechanism also includes a first fastening assembly, the column fixing bracket is welded and fixedly connected to the steering gear fixing bracket through multiple first fastening assemblies, the second shock absorber has a second through hole, the first fastening assembly includes a first bolt and a first nut, one end of the first bolt passes through the column fixing bracket, the second through hole and the steering gear fixing bracket in sequence, and is welded, and is threadedly connected to the first nut.

[0017] Furthermore, there are multiple second shock-absorbing members, and the multiple second shock-absorbing members are arranged in a one-to-one correspondence with the multiple first fastening components.

[0018] Furthermore, a cylindrical steel bushing is fixed in the second through hole.

[0019] The beneficial effect of adopting the above-mentioned further scheme is: the second shock absorber is used to buffer the vibration of the welding between the column fixing bracket and the steering gear fixing bracket. A steel bushing is embedded in the second shock absorber, which can control the compression deformation of the second shock absorber and prevent excessive shaking of the steering column caused by excessive deformation of the second shock absorber.

[0020] Furthermore, the first fastening assembly further includes a first gasket, which is sleeved on the first bolt and clamped between the steering gear fixing bracket welded together and the first nut.

[0021] The utility model also provides a tractor, comprising the steering column shock absorbing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of a steering column shock absorbing mechanism of the present invention;

[0023] Figure 2 This is a left side view of a steering column shock absorbing mechanism of the present invention;

[0024] Figure 3 The utility model is a top view of a steering column shock absorbing mechanism.

[0025] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0026] 1. Steering column; 2. Column fixing bracket; 3. Steering gear fixing bracket welding; 31. Crossbeam; 4. First shock absorber; 5. Second shock absorber; 6. First bolt. DETAILED DESCRIPTION

[0027] 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.

[0028] Example 1

[0029] like Figure 1-Figure 3 As shown, this embodiment provides a steering column shock absorbing mechanism, including a steering column 1, a column fixing bracket 2, a steering gear fixing bracket weld 3, a first shock absorber 4 and a second shock absorber 5. The steering column 1 is fixedly connected to the column fixing bracket 2, and the first shock absorber 4 is sandwiched between the two. The column fixing bracket 2 is fixedly connected to the steering gear fixing bracket weld 3, and the second shock absorber 5 is sandwiched between the two.

[0030] The steering column 1 is welded to the steering gear mounting bracket 3 and fixedly connected via the column mounting bracket 2. A dual damping structure, consisting of a first damper 4 and a second damper 5, is provided. This eliminates gaps during installation of the steering column 1, preventing steering wheel shake and damping any resonance between the steering wheel and chassis. The steering column damping mechanism is a simple, detachable structure that offers flexible adaptability, low cost, high reliability, and high practicality.

[0031] Specifically, the lower end of the steering column 1 is fixedly connected to the column fixing bracket 2 .

[0032] The first shock absorber 4 and the second shock absorber 5 are both made of elastic materials capable of achieving a buffering and vibration reduction effect, such as rubber. The first shock absorber 4 is a sheet or block of any shape, and the second shock absorber 5 is a sheet or block of any shape.

[0033] Based on any of the above solutions, the end of the steering column 1 has a flange, the flange is fixedly connected to the column fixing bracket 2, and the first shock absorber 4 is sandwiched between the flange and the column fixing bracket 2.

[0034] The steering column 1 is fixedly connected to the column fixing bracket 2 through a flange, and the structure is stable.

[0035] Specifically, the steering column damping mechanism further includes a second fastening assembly, and the flange is fixedly connected to the column fixing bracket 2 via a plurality of second fastening assemblies.

[0036] Based on any of the above solutions, the first shock-absorbing component 4 is a shock-absorbing pad.

[0037] Specifically, the first shock-absorbing member 4 is made of rubber.

[0038] In one specific example, the thickness of the first shock-absorbing member 4 is greater than or equal to 5 mm.

[0039] Specifically, the first shock absorber 4 has a first through hole, the second fastening assembly includes a second bolt and a second nut, one end of the second bolt passes through the flange, the first through hole and the pipe column fixing bracket 2 in sequence, and is threadedly connected to the second nut.

[0040] In one specific example, four groups of second fastening assemblies are provided, and the four groups of second fastening assemblies are spaced apart along the circumference of the flange.

[0041] Based on any of the above schemes, the steering gear fixing bracket weld 3 has two cross beams 31 set at intervals, the two ends of the column fixing bracket 2 are respectively fixedly connected to the two cross beams 31, and the second shock absorber 5 is provided between the end of the column fixing bracket 2 and the corresponding cross beam 31.

[0042] On the basis of any of the above solutions, the middle portion of the column fixing bracket 2 has a downwardly recessed bent portion, and the steering column 1 is fixedly connected to the bent portion.

[0043] The column fixing bracket 2 is a concave-shaped bent plate, which is convenient for positioning and installing the steering column 1 , and the column fixing bracket 2 has high structural strength.

[0044] Based on any of the above schemes, the steering column shock absorber mechanism also includes a first fastening assembly, the column fixing bracket 2 is fixedly connected to the steering gear fixing bracket weld 3 through multiple first fastening assemblies, the second shock absorber 5 has a second through hole, the first fastening assembly includes a first bolt 6 and a first nut, one end of the first bolt 6 passes through the column fixing bracket 2, the second through hole and the steering gear fixing bracket weld 3 in sequence, and is threadedly connected to the first nut.

[0045] On the basis of any of the above schemes, optionally, there are two second shock absorbers 5, and the two second shock absorbers 5 are respectively arranged at both ends of the pipe column fixing bracket 2, each second shock absorber 5 is provided with one or more first fastening components, and the number of second through holes on each second shock absorber 5 is the same as the number of first fastening components thereon; or, there are multiple second shock absorbers 5, and multiple second shock absorbers 5 are arranged in a one-to-one correspondence with multiple first fastening components, and each second shock absorber 5 has a second through hole.

[0046] Based on any of the above solutions, a cylindrical steel bushing is fixed in the second through hole.

[0047] The second shock absorber 5 is used to buffer the vibration of the column fixing bracket 2 and the steering gear fixing bracket weld 3. A steel bushing is embedded in the second shock absorber 5 to control the compression deformation of the second shock absorber 5 and prevent the steering column 1 from shaking too much due to excessive deformation of the second shock absorber 5.

[0048] Specifically, the length of the steel bushing is shorter than the length of the second through hole, so that the second shock absorber 5 can be compressed to the length of the steel bushing.

[0049] On the basis of any of the above solutions, the first fastening assembly further includes a first gasket, which is sleeved on the first bolt 6 and clamped between the steering gear fixing bracket weld 3 and the first nut.

[0050] Example 2

[0051] This embodiment also provides a tractor, comprising the steering column shock absorbing mechanism as described in the first embodiment.

[0052] In the description of the present invention, it should be noted that the terms "thickness", "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0054] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0056] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A steering column damping mechanism, characterized in that: The invention comprises a steering column (1), a column fixing bracket (2), a steering gear fixing bracket welded together (3), a first shock absorber (4) and a second shock absorber (5); the steering column (1) is fixedly connected to the column fixing bracket (2), and the first shock absorber (4) is sandwiched between the two; the column fixing bracket (2) is fixedly connected to the steering gear fixing bracket welded together (3), and the second shock absorber (5) is sandwiched between the two.

2. A steering column damping mechanism according to claim 1, characterized in that: The end of the steering column (1) is provided with a flange, the flange is fixedly connected to the column fixing bracket (2), and the first shock absorbing member (4) is sandwiched between the flange and the column fixing bracket (2).

3. The steering column damping mechanism according to claim 1, characterized in that: The first shock-absorbing member (4) is a shock-absorbing pad.

4. The steering column damping mechanism according to claim 1, characterized in that: The steering gear fixing bracket weld (3) has two spaced-apart crossbeams (31), the two ends of the column fixing bracket (2) are respectively fixedly connected to the two crossbeams (31), and the second shock-absorbing member (5) is provided between the end of the column fixing bracket (2) and the corresponding crossbeam (31).

5. The steering column damping mechanism according to claim 4, characterized in that: The middle portion of the column fixing bracket (2) has a downwardly recessed bent portion, and the steering column (1) is fixedly connected to the bent portion.

6. A steering column damping mechanism according to any one of claims 1 to 5, characterized in that: The invention also includes a first fastening assembly, wherein the column fixing bracket (2) is fixedly connected to the steering gear fixing bracket welding (3) through a plurality of the first fastening assemblies, the second shock absorber (5) has a second through hole, the first fastening assembly includes a first bolt (6) and a first nut, one end of the first bolt (6) passes through the column fixing bracket (2), the second through hole and the steering gear fixing bracket welding (3) in sequence, and is threadedly connected to the first nut.

7. The steering column damping mechanism according to claim 6, characterized in that: There are multiple second shock absorbing members (5), and the multiple second shock absorbing members (5) are arranged in a one-to-one correspondence with the multiple first fastening components.

8. The steering column damping mechanism according to claim 7, characterized in that: A cylindrical steel bushing is fixed in the second through hole.

9. The steering column damping mechanism according to claim 6, characterized in that: The first fastening assembly further comprises a first gasket, which is sleeved on the first bolt (6) and clamped between the steering gear fixing bracket weld (3) and the first nut.

10. A tractor, characterized in that: It comprises a steering column damping mechanism as described in any one of claims 1 to 9.

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