Driving front axle steering knuckle of tractor

Abstract

The utility model relates to the technical field of vehicle accessories, and discloses a tractor driving front axle steering knuckle which comprises a steering knuckle body, a shaft neck is fixedly installed on the front side of the steering knuckle body, an installation cavity is formed in the steering knuckle body, connecting planes are arranged at the inner bottom and the inner bottom of the installation cavity, and a steering knuckle arm is fixedly installed on one side of the steering knuckle body. The steering knuckle body located below the steering knuckle arm is fixedly provided with a side fixing base, the top and the bottom of the steering knuckle body are of plane structures, and a plurality of first screw grooves are formed in the top of the steering knuckle body. The design that the steering knuckle arm is directly integrated on the steering knuckle is adopted, compared with a traditional bolt connection mode, the innovative structure remarkably enhances the overall strength, the structure is simplified through the integrated design, the problem of possible breakage caused by stress concentration at the connecting position is solved, and the service life of the steering knuckle arm is prolonged. The steering stability and durability of the tractor are greatly improved, loosening or breakage of the bolt does not need to be worried about, and the steering action is smoother and more reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle accessories, in particular to a tractor driven front axle steering knuckle. Background Art

[0002] The steering knuckle of the tractor's front axle is a key component in the tractor's steering system. It is responsible for converting the steering wheel's operation into the steering movement of the wheels. The steering axle is mainly responsible for steering. It uses the steering knuckle to deflect the wheels at both ends to a certain angle to achieve steering. The steering axle is mainly composed of the front axle body, steering knuckle, and wheel side parts.

[0003] The steering knuckle transmits and bears the front load of the vehicle. When the vehicle is in motion, it is subjected to variable impact loads, so it is required to have high strength. At the same time, the steering knuckle supports and drives the front wheel to rotate around the kingpin to steer the vehicle, ensuring stable driving of the vehicle and sensitively transmitting the driving direction. The steering knuckle currently widely used is an "integrated axle tube and flange" forged structure. The advantages of this structure are light weight and simple structure. However, the forging and processing of the existing steering knuckle structure are relatively complex, and the steering knuckle arm needs to be assembled separately to the steering knuckle, which reduces the strength of the connection between the steering knuckle and the steering knuckle arm. Utility Model Content

[0004] The purpose of the utility model is to provide a tractor driven front axle steering knuckle, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A tractor-driven front axle steering knuckle comprises a steering knuckle body, a shaft neck being fixedly mounted on the front side of the steering knuckle body, a mounting cavity being defined within the steering knuckle body, connection planes being defined at the bottom and inside of the mounting cavity, a steering knuckle arm being fixedly mounted on one side of the steering knuckle body, and a side fixing seat being fixedly mounted on the steering knuckle body below the steering knuckle arm.

[0007] As a further preferred embodiment of the present invention, the top and bottom of the steering knuckle body are also planar structures, and a plurality of first screw grooves are provided on the top of the steering knuckle body;

[0008] Based on this, connecting planes are set at the bottom and top of the installation cavity. At the same time, the top and bottom of the steering knuckle body are also set to a plane structure, which is conducive to the rotational connection between the steering knuckle body and the front axle.

[0009] As a further preferred solution of the present invention, first axial holes are provided at the bottom and top center positions of the installation cavity, and a plurality of first connecting holes are provided in the installation cavity at the periphery of the first axial hole.

[0010] As a further preferred embodiment of the present invention, a second axial hole is provided in the center of the shaft neck, the second axial hole is connected to the mounting cavity, and a plurality of second screw grooves are provided on the front side of the shaft neck at the periphery of the second axial hole;

[0011] Based on this, a journal is provided on the front side of the steering knuckle body, so that the outer half shaft can directly pass through the second shaft hole in the journal to be connected to the wheel hub.

[0012] As a further preferred embodiment of the present invention, a third shaft hole is provided at one end of the steering knuckle arm;

[0013] Based on this, the steering knuckle arm and the steering knuckle body are set as an integrated structure, which makes the overall structural strength higher and the connection between the steering knuckle body and the steering knuckle arm is less likely to break.

[0014] As a further preferred solution of the present invention, a second connecting hole is opened in the side fixing seat.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In the present utility model, the design of integrating the steering knuckle arm directly into the steering knuckle is adopted. Compared with the traditional method of connecting by bolts, this innovative structure significantly enhances the overall strength. The integrated design not only simplifies the structure, but also avoids the problem of fracture that may occur due to stress concentration at the connection, greatly improving the steering stability and durability of the tractor. There is no need to worry about the bolts loosening or breaking, and the steering action is smoother and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a rear view of the main structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the main structure installation and the maximum equivalent stress value of each part of the utility model.

[0020] In the figure: 1. Steering knuckle body; 2. Axle neck; 3. Mounting cavity; 4. Connecting plane; 5. Steering knuckle arm; 6. Side fixing seat; 7. First axial hole; 8. First connecting hole; 9. First screw groove; 10. Second axial hole; 11. Second screw groove; 12. Third axial hole; 13. Second connecting hole. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-Figure 3 As shown, the utility model provides a tractor driven front axle steering knuckle, including a steering knuckle body 1, a shaft neck 2 is fixedly installed on the front side of the steering knuckle body 1, a mounting cavity 3 is provided in the steering knuckle body 1, and a connecting plane 4 is provided at the bottom and bottom of the mounting cavity 3, a steering knuckle arm 5 is fixedly installed on one side of the steering knuckle body 1, and a side fixing seat 6 is fixedly installed on the steering knuckle body 1 below the steering knuckle arm 5.

[0023] The top and bottom of the steering knuckle body 1 are also planar structures, and a plurality of first screw grooves 9 are opened on the top of the steering knuckle body 1. A connecting plane 4 is set at the bottom and top of the mounting cavity 3. At the same time, the top and bottom of the steering knuckle body 1 are also set into a planar structure, which is conducive to the rotational connection between the steering knuckle body 1 and the front axle. A first shaft hole 7 is opened at the bottom and top center positions of the mounting cavity 3, and a plurality of first connecting holes 8 are also opened in the mounting cavity 3 located at the outer position of the first shaft hole 7. A second shaft hole 10 is opened at the center position of the shaft neck 2. The second shaft hole 10 is connected to the mounting cavity 3 and is located at the second shaft hole 1 0 A plurality of second screw grooves 11 are provided on the front side of the journal 2 at the outer periphery. The journal 2 is provided on the front side of the steering knuckle body 1, so that the outer half shaft can directly pass through the second shaft hole 10 in the journal 2 and be connected to the wheel hub. A third shaft hole 12 is provided at one end of the steering knuckle arm 5. The steering knuckle arm 5 and the steering knuckle body 1 are provided as an integrated structure, which makes the overall structural strength higher. The connection between the steering knuckle body 1 and the steering knuckle arm 5 is not prone to breakage. The steering knuckle arm 5 and the steering knuckle body 1 are integrated into one body. Steering is achieved by hydraulic cylinder assistance. The material used is 42CrMo. A second connection hole 13 is provided in the side fixing seat 6.

[0024] It should be noted that the present invention is a tractor-driven front axle steering knuckle. When the steering knuckle body 1 is mounted on the axle housing, in order to ensure a wheel camber angle of 1.5°, the angle between the kingpin axis of the steering knuckle body 1 and the vertical line is guaranteed to be 6°. The steering knuckle body 1 is connected by upper and lower kingpins that cooperate with two first shaft holes 7. The upper kingpin adopts a joint bearing method with high reliability and strong load-bearing capacity. The lower kingpin adopts a steel sleeve form. The steering knuckle arm is rotatably connected to the output end of the power-assisting hydraulic cylinder.

[0025] In addition, to ensure accuracy, the steering knuckle body 1 is installed on the bridge housing for calculation together. The same four working conditions as the bridge housing and the calculation and analysis are carried out according to the load of 7000Kg×4. Under the action of the four working conditions, the maximum equivalent stress value of each part of the steering knuckle body 1 is 781.1Mpa, which is less than the yield strength of the material 930Mpa. The steering knuckle body 1 can meet the design requirements.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A tractor driven front axle steering knuckle, characterized by: The invention comprises a steering knuckle body (1), a shaft neck (2) is fixedly mounted on the front side of the steering knuckle body (1), a mounting cavity (3) is provided in the steering knuckle body (1), a connecting plane (4) is provided at the bottom of the mounting cavity (3), a steering knuckle arm (5) is fixedly mounted on one side of the steering knuckle body (1), and a side fixing seat (6) is fixedly mounted on the steering knuckle body (1) below the steering knuckle arm (5).

2. A tractor driven front axle steering knuckle according to claim 1, characterized in that: The top and bottom of the steering knuckle body (1) are also planar structures, and a plurality of first screw grooves (9) are provided on the top of the steering knuckle body (1).

3. The tractor driven front axle steering knuckle according to claim 1, characterized in that: A first axial hole (7) is provided at the center of the bottom and top of the installation cavity (3), and a plurality of first connecting holes (8) are provided in the installation cavity (3) at the periphery of the first axial hole (7).

4. The tractor driving front axle steering knuckle according to claim 1, characterized in that: A second axial hole (10) is provided at the center of the shaft neck (2), the second axial hole (10) is communicated with the mounting cavity (3), and a plurality of second screw grooves (11) are provided on the front side of the shaft neck (2) at the periphery of the second axial hole (10).

5. The tractor driving front axle steering knuckle according to claim 1, characterized in that: A third shaft hole (12) is formed at one end of the steering knuckle arm (5).

6. The tractor driving front axle steering knuckle according to claim 1, characterized in that: A second connection hole (13) is provided in the side fixing seat (6).

Images