Front wheel synchronous steering steel pipe and land leveler thereof

Abstract

The utility model relates to a front wheel synchronous steering steel pipe and a land leveler thereof, the front wheel synchronous steering steel pipe comprises a pipe body, the two ends of the pipe body are respectively connected with a front wheel, and the two ends of the pipe body are coaxial and straight end part pipes; an arc-shaped pipe is connected between the end part pipes; the arc-shaped pipe is arched downwards; the end pipe is connected with the front wheel through a spherical structure. The steering steel pipe has the advantages that the middle section of a traditional straight steel pipe is changed into the arc-shaped pipe structure which is arched downwards, the occupied space of the steering steel pipe on a chassis is effectively reduced, interference with moving parts such as a power transmission system and a suspension system is avoided, and the reasonability and reliability of layout of all systems are improved; the stress dispersion design of the arc-shaped pipe can relieve the problem of dynamic stress concentration generated by sharp turning or bumpy road sections, stress is prevented from being excessively concentrated in the middle of the steel pipe or a fixed fulcrum, the material fatigue risk is remarkably reduced, the service life of the steel pipe is prolonged, and the breakage hidden danger is reduced.

Description

Technical Field

[0001] This utility model relates to the field of grader technology, specifically a front wheel synchronous steering steel pipe and its grader. Background Technology

[0002] Synchronous steering of the front wheels of a grader is crucial to ensuring that the equipment can accurately and smoothly change direction according to the operator's intentions. To achieve synchronous steering of the front wheels, a steering steel pipe is usually connected between the front wheels. This steel pipe transmits steering torque to coordinate the steering actions of both front wheels.

[0003] Currently, most graders use straight-line steering tubing between their front wheels. While this traditional design can meet basic steering requirements under certain conditions, it reveals the following drawbacks in actual use:

[0004] 1. Due to its fixed and relatively regular shape, it often occupies too much space on the chassis when installed on the grader chassis. In addition to the steering system, the grader chassis also houses several important components such as the power transmission system, suspension system, and braking system. Each moving part in these systems requires a certain amount of space to move during operation. The large area occupied by the straight steering steel pipe can easily interfere with other moving parts.

[0005] 2. When a grader makes sharp turns or travels on bumpy roads, the steering system is subjected to significant impact loads and dynamic stresses. This stress easily concentrates in the middle of the steel pipe or at fixed support points. Prolonged exposure to this high-stress environment will gradually cause fatigue in the steel pipe material. With extended use, microcracks within the material will continue to propagate, potentially leading to pipe breakage.

[0006] Therefore, how to overcome the above-mentioned defects has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0007] To address the technical problems in the background art, this utility model discloses a front wheel synchronous steering steel pipe and its grader.

[0008] This utility model provides a front wheel synchronous steering steel pipe, including a pipe body, with each end of the pipe body connected to a front wheel, and the two ends of the pipe body are coaxial and straight end pipes;

[0009] An arc-shaped tube connects the end tubes;

[0010] The curved tube arches downwards;

[0011] The end tube is connected to the front wheel via a spherical structure.

[0012] Furthermore, the end of the end tube is threaded with a connector; the other end of the connector is snapped into a ball head and movably connected to the ball head.

[0013] Furthermore, the end tube has a slot; the slot extends axially into the end tube and penetrates the outer end of the end tube; a pipe clamp is connected to the position where the end tube has the slot, and the pipe clamp is used to fix it.

[0014] Furthermore, one end of the pipe clamp is open and fitted with an end pipe; the open end of the pipe clamp is connected by a bolt and locked in place by a nut that is threadedly connected to the bolt.

[0015] Furthermore, the end tube is provided with radially extending grooves; the bolt portion is engaged in the grooves.

[0016] This utility model also provides a grader, including a front wheel synchronous steering steel pipe.

[0017] The beneficial effects of this utility model are as follows: 1. By changing the middle section of the traditional straight steel pipe to a downward-curving arc-shaped pipe structure, this utility model effectively reduces the space occupied by the steering steel pipe on the chassis, avoids interference with moving parts such as the power transmission system and suspension system, and improves the rationality and reliability of the layout of each system. 2. The stress dispersion design of the arc-shaped pipe can alleviate the problem of dynamic stress concentration caused by sharp turns or bumpy road sections, avoid excessive stress concentration in the middle of the steel pipe or fixed support points, significantly reduce the risk of material fatigue, extend the service life of the steel pipe, and reduce the risk of fracture. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a top view of the installation structure of the tube body in this utility model;

[0020] Figure 2 This is a front view of the installation structure of the tube body in this utility model;

[0021] Figure 3 yes Figure 1 Enlarged view of point A in the middle;

[0022] Figure 4 yes Figure 2 Enlarged view of point B in the middle;

[0023] Figure 5 This is a schematic diagram of the tube's structure;

[0024] Figure 6 This is the front view of the tube.

[0025] Figure 7 This is a top view of the tube.

[0026] In the diagram: 1. Pipe body; 2. Front wheel; 3. Connector; 4. Ball head; 5. Pipe clamp; 6. Bolt; 7. Nut; 11. End pipe; 12. Arc-shaped pipe; 13. Groove; 14. Slot. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0028] Example 1:

[0029] like Figure 5-7 As shown, this utility model discloses a front wheel synchronous steering steel pipe, including a pipe body 1. The two ends of the pipe body 1 are coaxial and straight end pipes 11, and an arc-shaped pipe 12 is connected between the end pipes 11; the arc-shaped pipe 12 arches downward.

[0030] like Figure 1-4 As shown, the inner wall of the outer end of the end tube 11 is provided with axially extending internal threads. The connector 3, consisting of two parts forming a right angle, has one end threadedly connected to the end tube 11, and the other end snapped into the ball joint 4 mounted on the front wheel 2, realizing a universal connection between the tube body 1 and the front wheel 2. This configuration not only enables the two front wheels 2 to turn synchronously, but also allows the front wheels 2 to adapt to small angular deviations during turning, reducing wear caused by rigid connections, while ensuring accurate transmission of steering torque, improving the stability and operating precision of the grader's steering.

[0031] like Figure 3 and Figure 4 As shown, the end tube 11 has a slot 13; the slot 13 extends axially into the end tube 11 and passes through the outer end of the end tube 11; two pipe clamps 5 are connected at the position where the end tube 11 has the slot 13. One end of the pipe clamp 5 is open and fits onto the end tube 11; the open end of the pipe clamp 5 is connected by a bolt 6 and locked in place by a nut 7 threaded to the bolt 6. The slot 13 gives the end tube 11 a certain degree of elasticity and deformation capability; the setting of the pipe clamp 5 increases the pressure between the end tube 11 and the connector 3, thereby making the connection between the connector 3 and the end tube more secure.

[0032] Two radially extending slots 14 are provided on the end tube 11; the bolt 6 is partially engaged in the slots 14 to limit the bolt 6, thereby limiting the tube clamp 5, making its position more stable and less likely to fall off.

[0033] The advantages of this embodiment are: 1. By replacing the middle section of the traditional straight steel pipe with a downward-curving arc-shaped pipe 12, this utility model effectively reduces the space occupied by the steering steel pipe on the chassis, avoids interference with moving parts such as the power transmission system and suspension system, and improves the rationality and reliability of the layout of each system. 2. The stress dispersion design of the arc-shaped pipe 12 can alleviate the problem of dynamic stress concentration caused by sharp turns or bumpy road sections, avoid excessive stress concentration in the middle of the steel pipe or fixed support points, significantly reduce the risk of material fatigue, extend the service life of the steel pipe, and reduce the risk of fracture.

[0034] Example 2:

[0035] This utility model also discloses a grader, including the front wheel synchronous steering steel pipe as in Embodiment 1. This configuration makes the grader operate more stably and extends its service life.

[0036] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A front wheel synchronous steering steel pipe, comprising a pipe body (1), wherein both ends of the pipe body (1) are respectively connected to a front wheel (2), characterized in that: The two ends of the tube body (1) are coaxial and straight end tubes (11); An arc-shaped tube (12) is connected between the end tubes (11); The arc-shaped tube (12) curves downwards; The end tube (11) is connected to the front wheel (2) through a spherical structure.

2. The front wheel synchronous steering steel pipe according to claim 1, characterized in that: The end of the end tube (11) is threaded with a connector (3); The other end of the connector (3) is snapped into the ball head (4) and is movably connected to the ball head (4).

3. The front wheel synchronous steering steel pipe according to claim 2, characterized in that: The end tube (11) is provided with a slot (13); The slot (13) extends axially toward the end tube (11) and penetrates the outer end of the end tube (11); The end tube (11) has a slot (13) at which a pipe clamp (5) is connected and is fixed by the pipe clamp (5).

4. The front wheel synchronous steering steel pipe according to claim 3, characterized in that: The tube clamp (5) has an opening at one end and is fitted with an end tube (11); The open end of the pipe clamp (5) is connected by a bolt (6) and locked in place by a nut (7) threaded to the bolt (6).

5. The front wheel synchronous steering steel pipe according to claim 4, characterized in that: The end tube (11) is provided with a radially extending slot (14); The bolt (6) is partially engaged in the slot (14).

6. A grader, characterized in that: Includes the front wheel synchronous steering steel pipe as described in any one of claims 1-5.

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