A steering column structure, an agricultural machine

Abstract

The application discloses a steering column structure and an agricultural machine in the field of agricultural machinery, and relates to the technical field of agricultural machinery.The steering column structure comprises a pivotally arranged column mechanism assembly; a steering mechanism, wherein the steering mechanism comprises a first connecting rod and a second connecting rod, a connecting joint is arranged between the first connecting rod and the second connecting rod, the connecting structure is configured to realize the functions of active connection and mutual torque transmission of the first connecting rod and the second connecting rod; the rod body of the first connecting rod is arranged in a cavity of the column mechanism assembly, and the first connecting rod can rotate axially around the column mechanism assembly; a telescopic piece, one end of the telescopic piece is hingedly connected to the column mechanism, and the other end is hingedly arranged; wherein the telescopic piece realizes back-and-forth swinging of the column mechanism assembly around the hinge through telescopic movement; during use, the upper part of the steering mechanism is driven to swing back and forth through the telescopic piece, that is, the angle adjustment is quickly realized, the height of the steering wheel is adjusted according to different body sizes of users, and thus the users can conveniently drive the vehicle.

Description

Technical Field

[0001] This application relates to the field of agricultural machinery technology, specifically to a steering column structure and an agricultural machine. Background Technology

[0002] The function of the tractor steering column is to connect the angle of the steering wheel rotation with the steering wheels of the vehicle through the drive shaft and universal joint, thereby enabling the driver to control steering and other functions.

[0003] Currently, the hydraulic lines of tractors on the market all use fixed steering columns. The steering column angle is fixed and cannot be adjusted, which cannot adapt to drivers of different heights, body types and driving habits. This leads to unreasonable ergonomics when driving, and drivers are prone to premature fatigue, affecting safety and work efficiency. Utility Model Content

[0004] The purpose of this application is to provide a steering column structure and an agricultural machine to solve the defects of the existing technology where the steering column angle is fixed and cannot be adjusted, resulting in poor adaptability.

[0005] To achieve the above objectives, this application employs the following technical solution:

[0006] Firstly, this application discloses a steering column structure, which includes...

[0007] Rotatable column mechanism assembly;

[0008] A steering mechanism, comprising a first link and a second link, wherein a connecting structure is installed between the first link and the second link, the connecting structure enabling the first link and the second link to be movably connected and to transmit torque to each other;

[0009] The first connecting rod is located in the cavity of the column assembly, and the first connecting rod is rotatable about the axial direction of the column assembly;

[0010] A telescopic component, one end of which is hinged to the column mechanism, and the other end is hinged to a junction; wherein, the telescopic component moves to extend and retract, enabling the column mechanism assembly to swing back and forth around the junction.

[0011] In a further embodiment of this application, the first link and the second link are connected by a universal joint.

[0012] In a further embodiment of this application, the steering column structure further includes a base frame, the base frame including a fixed frame and a straight cylindrical seat, one end of the telescopic member is hinged to the straight cylindrical seat, the column mechanism assembly is rotatably installed in the fixed frame through a first limiting member, and the connecting joint extends out of the straight cylindrical seat.

[0013] In a further embodiment, a limiting mechanism is provided between the fixing frame and the column assembly. The limiting mechanism includes a limiting groove and a second limiting member. The limiting groove is located on the side wall of the fixing frame, and the second limiting member is located on the column assembly and placed within the limiting groove.

[0014] In a further embodiment, the limiting mechanism is a pair, with the two limiting mechanisms symmetrically arranged on both sides of the column assembly.

[0015] In a further embodiment of this application, the telescopic component is a gas spring, and an adjusting rod is movably mounted at the guide rod of the gas spring switch bolt, the adjusting rod movably contacting the guide rod of the switch bolt.

[0016] In a further embodiment of this application, a transition assembly is fixedly mounted on the column mechanism assembly. The transition assembly includes a first connector and a second connector that are hinged to each other. The first connector is fixedly connected to the column mechanism assembly, and the second connector is fixedly connected to the moving end of the telescopic member.

[0017] Secondly, this application discloses an agricultural machine that includes the aforementioned steering column structure.

[0018] The beneficial effects of this application are as follows:

[0019] This application features a rotating column mechanism assembly with a radially rotating steering mechanism inside. During use, the upper part of the steering mechanism swings back and forth through the drive of the telescopic component, thus quickly achieving angle adjustment. This allows users of different body types to adjust the steering wheel height, making it easier for them to drive the vehicle and improving the ergonomics of the driving system.

[0020] A limiting mechanism is provided between the installation of the column assembly and the fixed frame. The first connecting piece can adjust the angle within the range of the limiting groove to ensure that the equipment operates within a safe and reliable range and improve driving safety. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the steering column structure in the embodiments of this application;

[0022] Figure 2 This is a schematic diagram of the steering mechanism in an embodiment of this application.

[0023] The components are: 1. Straight cylinder seat; 2. Pipe column mechanism assembly; 22. Second limiting component; 3. Steering mechanism; 31. First connecting rod; 32. Second connecting rod; 33. Universal joint; 4. Adjusting rod; 5. First limiting component; 6. Fixing frame; 61. Limiting groove; 7. Gas spring; 8. First connecting component; 9. Second connecting component. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. Example 1

[0025] like Figure 1 and Figure 2 As shown, this embodiment discloses a steering column structure, which includes a rotatably configured column mechanism assembly 2, a steering mechanism 3, and a telescopic member. The steering mechanism 3 includes a first link 31 and a second link 32, and a connecting joint is installed between the first link 31 and the second link 32. The connecting structure enables the first link 31 and the second link 32 to be movably connected and to transmit torque to each other. The rod body of the first link 31 is located in the cavity of the column mechanism assembly 2, and the first link 31 can rotate axially around the column mechanism assembly 2. The first link 31 can be installed in the column mechanism assembly 2 through two spaced-apart bearings. One end of the telescopic member is hinged to the column mechanism, and the other end is hinged. The telescopic member performs telescopic movement to realize the reciprocating swing of the column mechanism assembly 2 around the junction.

[0026] In use, the telescopic component is activated to extend and retract, and the telescopic component drives the column mechanism assembly 2 to swing around the junction. The first link 31 inside the column mechanism assembly 2 can be adjusted in angle. In actual installation, a steering wheel is installed on the top of the first link 31, and the driver can make adaptive adjustments to the position and angle of the steering mechanism 3 according to their own driving position.

[0027] In some embodiments, a specific design of a steering column structure is as follows;

[0028] As attached Figure 2 As shown, in this embodiment, the first link 31 and the second link 32 are connected by a universal joint 33. In actual production, multiple universal joints 33 can be set in the steering mechanism 3. The second link 32 is connected to the steering structure on the vehicle chassis. This is prior art and will not be described in detail here.

[0029] As attached Figure 1In this embodiment, the steering column structure also includes a base frame, which includes a fixed frame 6 and a straight cylindrical seat 1. The fixed frame 6 is fixed on the straight cylindrical seat 1, and one end of the telescopic member is hinged to the straight cylindrical seat 1. The column mechanism assembly 2 is rotatably installed inside the fixed frame 6 through the first limiting member 5, and the connecting joint is arranged outside the straight cylindrical seat 1. Normally, a bolt is used as the first limiting member 5. A mounting hole is opened on the side wall of the fixed frame 6. The tail end of the bolt is a threaded section, and the front end is a cylindrical section. The threaded section is locked in the threaded hole on the outside of the column mechanism assembly 2, and the cylindrical section is installed with a gap between it and the mounting hole. Similarly, the first limiting member 5 is also installed on the side wall of the other side of the fixed frame 6. The central axes of the two first limiting members 5 are collinear.

[0030] A limiting mechanism is provided between the fixed frame 6 and the column assembly 2. Two limiting mechanisms are provided, symmetrically arranged on both sides of the column assembly 2. Each limiting mechanism includes a limiting groove 61 and a second limiting member 22. The limiting groove 61 is opened on the side wall of the fixed frame 6, and is usually opened into an arc-shaped groove. The second limiting member 22 is fixed to the surface of the column assembly 2 and is placed in the limiting groove 61. When the second limiting member 22 moves, the contact position with the limiting groove 61 is the limit position of the movement of the first connecting rod 31. The second limiting member 22 can be a convex shaft integrally installed on the column assembly 2. In some embodiments, screws are threaded and fixed on the surface of the column assembly. These convex shafts, screws, etc., all serve the limiting effect.

[0031] In this embodiment, a transition assembly is fixed on the column mechanism assembly 2. The transition assembly includes a first connector 8 and a second connector 9 that are hinged to each other. The first connector 8 is fixedly connected to the column mechanism assembly 2, and the second connector 9 is fixedly connected to the moving end of the telescopic member. When the telescopic member performs telescopic movement, the bottom of the telescopic member rotates adaptively, and the top moves to extend or shorten. At this time, the first connector 8 and the second connector 9 follow the telescopic member to perform adaptive position switching to satisfy the rotation of the first link 31.

[0032] In this embodiment, the telescopic component is a gas spring 7. An adjusting rod 4 is movably installed at the switch bolt guide rod of the gas spring 7. The adjusting rod 4 movably contacts the switch bolt guide rod. In use, pressing the adjusting rod 4 causes it to contact and compress the switch bolt guide rod, allowing the piston rod of the gas spring 7 to extend or retract. At this time, the operator can adjust the first connecting rod 31 back and forth. The first connecting rod 31 rotates around the mounting point of the first limiting member 5 until it reaches a suitable driving position for the driver. Releasing the adjusting rod 4 fixes the piston rod in the gas spring 7, and the position of the first connecting rod 31 is repositioned. It should be noted that the space inside the straight cylinder on the straight cylinder seat 1 is sufficient for the adjustment of the first connecting rod 31. Furthermore, the gas spring 7 is a mature technology product, and the specific installation structure between the adjusting rod 4 and the gas spring 7 can be found in the relevant design of the gas spring 7 in the gas spring 7 bench. Example 2

[0033] This embodiment discloses an agricultural machine, which includes the steering column structure of the above embodiment. This steering column structure is installed in the cab, and the second link 32 is connected to the steering system on the chassis.

[0034] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

Claims

1. A steering column structure, characterized in that, include Rotary column mechanism assembly (2); Steering mechanism (3), the steering mechanism (3) includes a first link (31) and a second link (32), a connecting joint is installed between the first link (31) and the second link (32), the connecting structure causes the first link (31) and the second link (32) to be movably connected and to transmit torque to each other; The first connecting rod (31) is located in the cavity of the column assembly (2), and the first connecting rod (31) can rotate axially around the column assembly (2); The telescopic component is hinged at one end to the column mechanism and at the other end; wherein the telescopic component moves to extend and retract, thereby enabling the column mechanism assembly (2) to swing back and forth around the junction.

2. The steering column structure according to claim 1, characterized in that, The first link (31) and the second link (32) are connected by a universal joint (33).

3. The steering column structure according to claim 1, characterized in that, The steering column structure also includes a base frame, which includes a fixed frame (6) and a straight cylinder seat (1). One end of the telescopic member is hinged to the straight cylinder seat (1). The column mechanism assembly (2) is rotatably installed in the fixed frame (6) through a first limiting member (5). The connecting joint extends out of the straight cylinder seat (1).

4. The steering column structure according to claim 3, characterized in that, A limiting mechanism is provided between the base frame and the column assembly (2). The limiting mechanism includes a limiting groove (61) and a second limiting member (22). The limiting groove (61) is located on the side wall of the fixed frame (6), and the second limiting member (22) is located on the column assembly (2). The second limiting member (22) is placed in the limiting groove (61).

5. The steering column structure according to claim 4, characterized in that, There are two limiting mechanisms, which are symmetrically arranged on both sides of the column assembly (2).

6. The steering column structure according to claim 1, characterized in that, The telescopic component is a gas spring (7), and an adjusting rod (4) is movably installed at the switch bolt guide rod of the gas spring (7). The adjusting rod (4) movably contacts the switch bolt guide rod.

7. The steering column structure according to claim 1, characterized in that, The column assembly (2) is fixed with a transition component, which includes a first connector (8) and a second connector (9) that are hinged to each other. The first connector (8) is fixedly connected to the column assembly (2), and the second connector (9) is fixedly connected to the moving end of the telescopic component.

8. An agricultural machine, characterized in that, Includes the steering column structure as described in any one of claims 1 to 7.

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