CN214984618U

CN214984618U - Front axle I-beam with front and back asymmetric structures

Info

Publication number: CN214984618U
Application number: CN202120893230.0U
Authority: CN
Inventors: 周挺; 卢金良; 赵喜一; 邵庆刚
Original assignee: Dongfeng Dana Axle Co Ltd
Current assignee: Dongfeng Dana Axle Co Ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-12-03
Anticipated expiration: 2031-04-27

Abstract

The utility model provides a front axle I-beam of asymmetric structure around can effectively realize the front axle wide-angle and turn to, guarantees front axle I-beam intensity and rigidity simultaneously, the technical scheme of the utility model including the I-beam body that is the I-shaped, I-beam body middle part district section is equipped with two leaf spring installation faces, and both ends are the fist, on the district section between the fist of leaf spring installation face and homonymy, be located the upper and lower aerofoil of I-beam body front side to I-beam body rear side recess, form the depressed part, be located the upper and lower aerofoil of I-beam body rear side and the position that the front side recess corresponds to this rear side of I-beam outstanding, form the protruding portion.

Description

Front axle I-beam with front and back asymmetric structures

Technical Field

The utility model relates to a commercial car spare part technical field specifically is a front axle I-beam of front and back asymmetric structure.

Background

The front axle is one of the main load bearing parts of the automobile, bears various forces and moments in the actual running working condition, and meanwhile, the I-shaped beam of the front axle has enough strength and rigidity in order to ensure the running safety. Under the influence of national regulations and the requirement of users on maneuverability, the front axle of the automobile tends to be designed with large turning angle increasingly. When the steering wheel is steered at a large turning angle, the steering wheel is limited by the space of a front axle, and parts such as an adjusting arm of a front axle brake, a left and right drag link arm and the like can interfere with the front axle or the space distance is too small, so that the interference risk exists. The brake adjusting arm is not easy to avoid a space, the front axle is designed to be newly opened, the space needs to be avoided by the design on the front axle, and the front axle is guaranteed to realize large-angle steering. If the front-back symmetrical design is adopted like a plurality of front axles, the front axle does not reach the maximum rotation angle, and the brake adjusting arm interferes with the front axle.

SUMMERY OF THE UTILITY MODEL

The utility model provides a front axle I-beam of asymmetric structure around can effectively realize that the front axle wide-angle turns to, guarantees front axle I-beam intensity and rigidity simultaneously.

The technical scheme of the utility model lies in: including the I-beam body that is the I-shaped, I-beam body middle part district section is equipped with two leaf spring installation faces, and both ends are the fist, on the district section between the fist of leaf spring installation face and homonymy, the upper and lower alar plate that is located I-beam body front side is to I-beam body rear side recess, forms the depressed part, and the position that the upper and lower alar plate that is located I-beam body rear side corresponds with the front side depressed part is to this rear side of I-beam side protrusion, forms the protruding portion.

Preferably, the concave part and the protruding part are positioned on the side, close to the fist, of the I-beam main body, and the concave part and the protruding part are smoothly connected with the I-beam main bodies on two sides through circular arcs.

Preferably, the cross section of the center of the i-beam body and the cross section of the plate spring mounting surface are both in a front-back symmetrical structure, and the cross section of the section between the plate spring mounting surface and the fist is in a non-front-back symmetrical structure.

Preferably, in the above aspect, on the upper wing plate and the lower wing plate between the leaf spring mounting surface and the fist on the same side and on the side close to the leaf spring mounting surface, the widths of the upper wing plate and the lower wing plate on the front side of the i-beam body on the same cross section are greater than the widths of the upper wing plate and the lower wing plate on the rear side of the i-beam body, and the widths of the upper wing plate and the lower wing plate on the front side of the i-beam body are gradually reduced from the leaf spring mounting surface to the concave portion.

Preferably, the plate spring mounting surface is provided with a longitudinal positioning hole, and the axis of the main pin hole of the fist, the axis of the positioning hole and the longitudinal center line of the central cross section of the I-shaped beam body are located on the same longitudinal plane.

Preferably, the width of the upper wing plate of the central section of the i-beam body is greater than the width of the lower wing plate.

The beneficial effects of the utility model reside in that:

1. the upper wing plate and the lower wing plate on the front side of the I-shaped beam body are provided with the concave parts as avoidance spaces, so that parts such as a front axle brake adjusting arm, a left straight pull rod arm, a right straight pull rod arm and the like can be effectively avoided, the automobile can not be limited by the space of the front axle when being steered at a large corner, the turning radius of the whole automobile is effectively reduced, and the good maneuverability of the whole automobile is ensured.

2. The corresponding protruding parts are designed on the opposite sides of the recessed parts at the two ends of the front shaft, the protruding parts and the recessed parts are in smooth transition with the I-beam main bodies on the two sides through arcs, the overall stress is small, and the overall strength and rigidity of the front shaft can be effectively guaranteed.

Drawings

FIG. 1 is a front view of an I-beam of a front axle of an automobile according to the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 1;

FIG. 3 is a schematic cross-sectional view taken along line AA in FIG. 1;

FIG. 4 is a schematic cross-sectional view taken along line BB of FIG. 1;

FIG. 5 is a schematic sectional view taken along line CC in FIG. 1;

Detailed Description

Embodiments of the present invention are described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 5, the structure of the present embodiment includes an i-beam body in an i-shape, two leaf spring mounting surfaces 3 are provided in a middle section of the i-beam body, two fist 4 are provided at two ends of the i-beam body, an upper wing plate and a lower wing plate located on a front side of the i-beam body are recessed toward a rear side of the i-beam body in a section between the leaf spring mounting surfaces 3 and the fist 4 on the same side, so as to form a recessed portion 6, and portions of the upper wing plate and the lower wing plate located on the rear side E of the i-beam body, which correspond to the recessed portion 6 on the front side, protrude toward the rear side of the i-beam body, so as to form a protruding portion 7.

In this embodiment, the concave portion 6 and the convex portion 7 are located on the side of the i-beam body close to the fist 4, and the concave portion 6 and the convex portion 7 are smoothly connected with the i-beam body on both sides through an arc.

In this embodiment, the cross sections of the central cross section 1 and the plate spring mounting surface 3 of the i-beam body are both front-back symmetric structures, and the cross section of the section between the plate spring mounting surface 3 and the fist 4 is a non-front-back symmetric structure.

In this embodiment, on the upper wing plate and the lower wing plate between the leaf spring mounting surface 3 and the fist 4 on the same side close to the leaf spring mounting surface 3, the widths of the upper wing plate and the lower wing plate on the front side of the i-beam body on the same cross section are greater than the widths of the upper wing plate and the lower wing plate on the rear side of the i-beam body, and the widths of the upper wing plate and the lower wing plate on the front side of the i-beam body are gradually reduced from the leaf spring mounting surface 3 to the concave part 6.

In this embodiment, a longitudinal positioning hole is formed in the plate spring mounting surface 3, and the axis of the main pin hole 8 of the fist 4, the axis of the positioning hole, and the longitudinal center line of the central cross section of the i-beam body are located on the same longitudinal plane 2.

In this embodiment, the width of the upper wing plate 9 of the central section 1 of the i-beam body is greater than the width of the lower wing plate 10.

In the present embodiment, the upper and lower wing plates of the i-beam section between the fist 4 and the plate spring attachment surface 3 are designed to be recessed on the front side and protruded on the rear side. One side of the 5 positions of the bent necks at the two ends of the I-shaped beam, which is close to the 4 holes of the fist, is designed to be a smooth inward concave structure for avoiding the space position of the brake adjusting arm during maximum steering, and the other side, which is opposite to the concave part 6, is designed to be a convex part 7 protruding towards the excircle and is in smooth transition through an arc for ensuring the strength. The central line of a main pin hole 8 of the fist 4 of the front shaft, the central plane of a positioning hole 9 of the plate spring surface and the longitudinal central line of the central cross section of the I-shaped beam body are positioned on the same longitudinal plane. The cross section is designed asymmetrically relative to the front and rear central planes of the I-beam and is symmetrical relative to the left and right central planes of the I-beam.

The front axle I-beam with the structure adopts the structural design that the rear sides of the upper wing plate and the lower wing plate at the relevant parts are recessed and the front sides of the upper wing plate and the lower wing plate protrude out, so that parts such as a front axle brake adjusting arm, a left straight pull rod arm and a right straight pull rod arm can be effectively avoided through the recessed part 6, the automobile cannot be limited by the space of the front axle when steering at a large corner, the turning radius of the whole automobile is effectively reduced, the good maneuverability of the whole automobile is ensured, and meanwhile, the strength and the rigidity of the I-beam body can be effectively ensured through the protruding part 7 at the opposite side.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a front axle I-beam of asymmetric structure around, its characterized in that: including the I-beam body that is the I-shaped, I-beam body middle part district section is equipped with two leaf spring installation faces, and both ends are the fist, on the district section between the fist of leaf spring installation face and homonymy, the upper and lower alar plate that is located I-beam body front side is to I-beam body rear side recess, forms the depressed part, and the position that the upper and lower alar plate that is located I-beam body rear side corresponds with the front side depressed part is to this rear side of I-beam side protrusion, forms the protruding portion.

2. The front axle i-beam according to claim 1, wherein: the concave part and the protruding part are positioned on the I-beam main body and close to one side of a fist, and the concave part and the protruding part are smoothly connected with the I-beam main bodies on two sides through circular arcs.

3. The front axle i-beam according to claim 2, wherein: the cross section of the center of the I-shaped beam body and the cross section of the plate spring mounting surface are both in front-back symmetrical structures, and the cross section of the section between the plate spring mounting surface and the fist is in a non-front-back symmetrical structure.

4. The front axle i-beam according to claim 3, wherein: on the upper wing plate and the lower wing plate which are close to one side of the plate spring mounting surface between the plate spring mounting surface and the fist on the same side, the widths of the upper wing plate and the lower wing plate on the front side of the I-shaped beam body on the same cross section are larger than those of the upper wing plate and the lower wing plate on the rear side of the I-shaped beam, and the widths of the upper wing plate and the lower wing plate on the front side of the I-shaped beam body are gradually reduced from the plate spring mounting surface to the concave part.

5. The front axle i-beam according to claim 4, wherein: and a longitudinal positioning hole is formed in the plate spring mounting surface, and the axis of the main pin hole of the fist, the axis of the positioning hole and the longitudinal center line of the central cross section of the I-shaped beam body are positioned on the same longitudinal plane.

6. The front axle i-beam according to claim 5, wherein: the width of the upper wing plate of the central section of the I-beam body is larger than that of the lower wing plate.