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CN-224227880-U - Front wheel synchronous steering steel pipe and land leveler thereof

CN224227880UCN 224227880 UCN224227880 UCN 224227880UCN-224227880-U

Abstract

The utility model relates to a front wheel synchronous steering steel pipe and a grader thereof, which comprises a pipe body, wherein 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 pipes; an arc-shaped pipe is connected between the end pipes, the arc-shaped pipe is downwards arched, and the end pipes are connected with the front wheels through spherical structures. The utility model has the beneficial effects that 1, the middle section of the traditional straight steel pipe is changed into the downward arched pipe structure, so that the space occupation of the steering steel pipe on the chassis is effectively reduced, the interference with moving parts such as a power transmission system, a suspension system and the like is avoided, and the rationality and the reliability of the layout of each system are improved. 2. The stress dispersion design of the arc-shaped pipe can relieve the problem of dynamic stress concentration generated in a sharp turn or a bumpy road section, avoid excessive stress concentration in the middle part or a fixed fulcrum of the steel pipe, obviously reduce the fatigue risk of materials, prolong the service life of the steel pipe and reduce the hidden danger of fracture.

Inventors

  • LIANG WANFU
  • XU XIN
  • ZHU JUNJIE
  • Shen Panchen

Assignees

  • 国机重工集团常林有限公司

Dates

Publication Date
20260512
Application Date
20250509

Claims (6)

  1. 1. The utility model provides a synchronous steel pipe that turns to of front wheel, includes body (1), the both ends of body (1) are connected with a front wheel (2) respectively, its characterized in that: two ends of the pipe body (1) are coaxial and straight end pipes (11); an arc-shaped pipe (12) is connected between the end pipes (11); -said arced tube (12) is bowed downwardly; the end pipe (11) is connected with the front wheel (2) through a spherical structure.
  2. 2. The front wheel synchronous steering steel pipe according to claim 1, wherein the end of the end pipe (11) is connected with a joint (3) through screw threads; the other end of the joint (3) is clamped with the ball head (4) and is movably connected with the ball head (4).
  3. 3. The front wheel synchronous steering steel pipe according to claim 2, wherein the end pipe (11) is provided with a notch (13); The notch (13) extends axially towards the end pipe (11) and penetrates through the outer end of the end pipe (11); The pipe clamp (5) is connected to the position, provided with the notch (13), of the end pipe (11), and is clamped and fixed through the pipe clamp (5).
  4. 4. The front wheel synchronous steering steel pipe according to claim 3, wherein one end of the pipe clamp (5) is opened and sleeved with an end pipe (11); The open end of the pipe clamp (5) is connected through a bolt (6) and is locked and fixed through a nut (7) in threaded connection with the bolt (6).
  5. 5. The front wheel synchronous steering steel pipe according to claim 4, wherein the end pipe (11) is provided with a radially extending clamping groove (14); The bolt (6) is partially clamped in the clamping groove (14).
  6. 6. A grader characterized by comprising the front wheel synchronous steering steel pipe of any one of claims 1-5.

Description

Front wheel synchronous steering steel pipe and land leveler thereof Technical Field The utility model relates to the technical field of graders, in particular to a front wheel synchronous steering steel pipe and a grader thereof. Background The synchronous steering function of the front wheels of the grader is a key point for ensuring that the device can accurately and smoothly change the running direction according to the intention of an operator. In order to realize synchronous steering of the front wheels, a steering steel pipe is generally connected between the front wheels, and steering torque is transmitted through the steel pipe so as to coordinate steering actions of the front wheels at two sides. At present, steering steel pipes adopted between front wheels of a land leveler are mostly arranged into straight structures. Although the conventional design can meet the basic steering function requirement under certain conditions, the following defects are exposed in the actual use process: 1. The chassis of the land leveler is provided with a plurality of important components such as a power transmission system, a suspension system, a braking system and the like besides a steering system, wherein each moving part in the systems needs a certain movable space in the working process, and a large area of a flat steering steel pipe occupies and is easy to interfere with other moving parts; 2. When the grader makes a sharp turn or runs on a bumpy road, the steering system is subjected to large impact loads and dynamic stresses. Stress is easily concentrated in the middle part of the steel pipe or at the fixed pivot. Under the environment of high stress for a long time, the steel pipe material can gradually generate fatigue phenomenon. As the service time is prolonged, microcracks in the material are continuously expanded, and the steel pipe is possibly broken. How to overcome the above-mentioned defects is a problem to be solved by the person skilled in the art. Disclosure of utility model In order to solve the technical problems in the background technology, the utility model discloses a front wheel synchronous steering steel pipe and a grader thereof. The utility model provides a front wheel synchronous steering steel pipe, which comprises a pipe body, wherein 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 pipes; An arc tube is connected between the end tubes; the arc-shaped pipe is downwards arched; The end pipe is connected with the front wheel through a spherical structure. Further, the end part of the end pipe is connected with a joint through threads, and the other end of the joint is clamped with a ball head and is movably connected with the ball head. Further, the end pipe is provided with a notch which extends towards the axial direction of the end pipe and penetrates through the outer end of the end pipe, and the position of the notch of the end pipe is connected with a pipe clamp and is fixed through the pipe clamp butt clamp. Further, one end of the pipe clamp is opened and sleeved with the end pipe, and the opening end of the pipe clamp is connected through a bolt and is locked and fixed through a nut in threaded connection with the bolt. Further, a clamping groove extending in the radial direction is formed in the end pipe, and the bolt part is clamped in the clamping groove. The utility model also provides a grader, which comprises the front wheel synchronous steering steel pipe. The utility model has the beneficial effects that 1, the middle section of the traditional straight steel pipe is changed into the downward arched pipe structure, so that the space occupation of the steering steel pipe on the chassis is effectively reduced, the interference with moving parts such as a power transmission system, a suspension system and the like is avoided, and the rationality and the reliability of the layout of each system are improved. 2. The stress dispersion design of the arc-shaped pipe can relieve the problem of dynamic stress concentration generated in a sharp turn or a bumpy road section, avoid excessive stress concentration in the middle part or a fixed fulcrum of the steel pipe, obviously reduce the fatigue risk of materials, prolong the service life of the steel pipe and reduce the hidden danger of fracture. Drawings The utility model will be further described with reference to the drawings and examples. FIG. 1 is a top view of a mounting structure for a pipe body in accordance with the present utility model; FIG. 2 is a front view of the mounting structure of the pipe body of the present utility model; FIG. 3 is an enlarged view at A in FIG. 1; Fig. 4 is an enlarged view at B in fig. 2; FIG. 5 is a schematic view of the structure of the pipe body; FIG. 6 is a front view of the tube body; FIG. 7 is a top view of the tube body; In the figure, 1, a pipe body, 2, a front wheel, 3, a joint, 4, a ball head,