Abrasion-resistant structure of air suspension support shaft sleeve

Abstract

The utility model discloses an air suspension support shaft sleeve wear-resisting structure which comprises a wear-resisting plate, the wear-resisting plate is square and provided with a rotating shaft through hole, the upper edge of the wear-resisting plate is provided with a section of inserting plate edge with a narrow upper portion and a wide lower portion, and the longitudinal section of the wear-resisting plate is in an isosceles trapezoid shape. The lower end of the wear-resisting plate is provided with a limiting block protruding outwards, and the limiting block is perpendicular to the plane where the wear-resisting plate is located. The anti-abrasion device is simple in structure and reasonable in design, the upper edge of the anti-abrasion device is arranged in a narrow-end-up mode so that the anti-abrasion device can be conveniently installed in a crack between the air suspension support and the shaft sleeve, mutual friction abrasion between the air suspension support and the shaft sleeve can be effectively prevented through the arrangement of the anti-abrasion plate, and the service life of the air suspension support and the service life of the shaft sleeve are prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of air suspension accessories, and particularly relates to a wear-resistant structure for an air suspension bracket bushing. Background Art

[0002] An air suspension is a suspension system that uses air springs instead of traditional leaf springs. Because of its advantages such as light weight, good ride comfort, and high stability, it is widely used in large buses and trucks, and is currently being popularized in trailers, especially tank trucks for transporting dangerous goods. The existing vehicle suspension includes a suspension assembly and a shock absorber. The suspension assembly includes a front bracket, a leaf spring guide arm, an air spring, etc. Among them, since one end of the front bracket is installed on the vehicle frame and the other end is axially connected to the axle through the leaf spring guide arm, and together with the air spring, it bears the weight of the axle. There is a gap between the positioning shaft bearing sleeve connected to the leaf spring guide arm and the existing front vehicle frame, and there is collision and friction between them. The sliding friction between the bushing and the bracket is easy to wear each other, reducing the service life of the front bracket and the bushing. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the deficiencies existing in the above-mentioned existing background art, improve the service life of the air suspension bracket and the bushing, and thus provide a wear-resistant structure for the air suspension bracket bushing.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is: a wear-resistant structure for an air suspension bracket bushing, including a wear-resistant plate. The wear-resistant plate is square, and is provided with a rotating shaft through hole thereon. The upper edge of the wear-resistant plate is provided with an insertion plate edge that is narrow at the top and wide at the bottom, and its longitudinal section is in the shape of an isosceles trapezoid; the lower end of the wear-resistant plate is provided with an outwardly convex limiting block, and the limiting block is perpendicular to the plane where the wear-resistant plate is located.

[0005] Preferably, the limiting block is integrally formed with the wear-resistant plate and is outwardly convexly formed by a one-way stamping method.

[0006] Preferably, the lower end of the wear-resistant plate gradually contracts inward, presenting an inverted bottle mouth shape.

[0007] Furthermore, the set length of the insertion plate edge that is narrow at the top and wide at the bottom is greater than the diameter of the corresponding bushing.

[0008] Furthermore, the insertion plate edge that is narrow at the top and wide at the bottom protrudes from the upper edge of the wear-resistant plate.

[0009] As another optimized technical solution of the utility model, a plurality of uniformly arranged hemispherical protrusion blocks are provided on both the front and rear sides of the wear-resistant plate, and the hemispherical protrusion blocks on the front side and the hemispherical protrusion blocks on the rear side are arranged in a staggered manner.

[0010] As another optimized technical solution of the present utility model, a plurality of uniformly arranged concave oil grooves are provided on both the front and rear sides of the wear-resistant plate, and the concave oil grooves on the front side are arranged staggered with the concave oil grooves on the rear side.

[0011] Compared with the prior art, the present utility model has the following beneficial effects: The structure of the present utility model is simple and reasonably designed. The upper edge with a narrower top and a wider bottom is convenient for installation into the gap between the air suspension bracket and the bushing. The setting of the wear-resistant plate can effectively prevent the mutual friction and wear between the air suspension bracket and the bushing, and improve the service life of the air suspension bracket and the bushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0013] Figure 2 is a longitudinal central sectional view of the present utility model;

[0014] Figure 3 is Figure 2 an enlarged view of part A in

[0015] Figure 4 is a schematic diagram of the structure of another embodiment II of the present utility model;

[0016] Figure 5 is a schematic diagram of the structure of another embodiment III of the present utility model;

[0017] In the figure: 1, wear-resistant plate; 2, edge of the insertion plate; 3, limit block; 4, through hole for the rotating shaft; 5, hemispherical protrusion block; 6, concave oil groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] It should be noted that in the description of the present utility model, terms such as "upper", "lower", "front", "rear", "inner", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only relationship terms determined for the convenience of describing the structural relationship of each component in the present utility model, and do not specifically refer to any component in the present utility model that must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as a limitation to the present utility model.

[0019] In addition, in the description of the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0020] The following will further describe the specific embodiments of the present utility model in detail with reference to the accompanying drawings:

[0021] Embodiment 1

[0022] As Figures 1 to 3 shown, a wear-resistant structure for an air suspension bracket bushing is mainly inserted and applied between the bracket and the bushing in an air suspension. It includes a wear-resistant plate 1. The wear-resistant plate 1 is generally square, and is provided with a rotating shaft through hole 4 adapted to the positioning shaft inside the bushing. The upper edge of the wear-resistant plate 1 is provided with an insertion plate edge 2 that is narrow at the top and wide at the bottom. The insertion plate edge 2 is integrally formed with the wear-resistant plate 1 and is formed by stamping and cutting the wear-resistant plate 1. It is located in the middle of the upper edge and is symmetric left and right. The longitudinal section of the insertion plate edge 2 is in the shape of an isosceles trapezoid, and its lower end is of the same thickness as the wear-resistant plate 1, which is convenient for quickly inserting the wear-resistant plate 1 into the gap between the air suspension bracket and the bushing. The set length of the insertion plate edge 2 is greater than the outer diameter width of the corresponding bushing, which is convenient for aligning the central rotating shaft through hole 4 with the positioning shaft during insertion. At the same time, the height of the insertion plate edge 2 protrudes above the upper edge of the wear-resistant plate 1, which can better align and insert into the gap between the bracket and the bushing. The lower end of the wear-resistant plate 1 is gradually tapered, and the left and right sides are inwardly retracted to form an inverted bottle shape. The lower end of the wear-resistant plate 1 is provided with an outwardly protruding limit block 3, which is integrally formed with the wear-resistant plate 1 and is outwardly protruded by a one-way stamping method. The limit block 3 is perpendicular to the plane where the wear-resistant plate 1 is located. The setting of the limit block 3 can not only assist in the hammering during the insertion of the wear-resistant plate 1, but also limit the insertion depth of the wear-resistant plate 1. It also forms left and right limits with the lower end of the air suspension bracket to prevent the wear-resistant plate 1 from rotating with the rotation of the bushing.

[0023] Embodiment 2

[0024] As Figure 4As shown in the figure, a wear-resistant structure of an air suspension bracket bushing is mainly inserted and applied between the bracket and the bushing in an air suspension. It includes a wear-resistant plate 1. The wear-resistant plate 1 is square as a whole, and is provided with a rotating shaft through hole 4 adapted to the positioning shaft in the bushing. The upper edge of the wear-resistant plate 1 is provided with an insertion plate edge 2 that is narrow at the top and wide at the bottom. The insertion plate edge 2 is integrally formed with the wear-resistant plate 1 and is formed by stamping and cutting the wear-resistant plate 1. It is located in the middle of the upper edge and is symmetric left and right. The longitudinal section of the insertion plate edge 2 is in the shape of an isosceles trapezoid, and its lower end is of the same thickness as the wear-resistant plate 1, which is convenient for quickly inserting the wear-resistant plate 1 into the gap between the air suspension bracket and the bushing. The set length of the insertion plate edge 2 is greater than the outer diameter width of the corresponding bushing, which is convenient for aligning the central rotating shaft through hole 4 with the positioning shaft during insertion. At the same time, the insertion plate edge 2 protrudes above the upper edge of the wear-resistant plate 1, which can better align and insert into the gap between the bracket and the bushing. The lower end of the wear-resistant plate 1 is gradually tapered, and the left and right sides are inwardly retracted to form an inverted bottle shape. The lower end of the wear-resistant plate 1 is provided with an outwardly protruding limit block 3, which is integrally formed with the wear-resistant plate 1 and is outwardly protruded by a one-way stamping method. The limit block 3 is perpendicular to the plane where the wear-resistant plate 1 is located. The setting of the limit block 3 can not only assist the hammering during the insertion of the wear-resistant plate 1, but also limit the insertion depth of the wear-resistant plate 1. It also forms left and right limits with the lower end of the air suspension bracket to prevent the wear-resistant plate 1 from rotating with the rotation of the bushing.

[0025] A number of uniformly arranged hemispherical protrusion blocks 5 are provided on both the front and rear sides of the wear-resistant plate 1. The hemispherical protrusion blocks 5 on the front side of the wear-resistant plate 1 and the hemispherical protrusion blocks 5 on the rear side thereof are arranged in a staggered manner to improve wear resistance.

[0026] Example 3

[0027] Such as Figure 5As shown, a wear-resistant structure for an air suspension bracket bushing is mainly inserted and applied between the bracket and the bushing in an air suspension. It includes a wear-resistant plate 1. The wear-resistant plate 1 is overall square, and is provided with a rotating shaft through hole 4 adapted to the positioning shaft inside the bushing. The upper edge of the wear-resistant plate 1 is provided with an insertion plate edge 2 that is narrow at the top and wide at the bottom. The insertion plate edge 2 is integrally formed with the wear-resistant plate 1, and is formed by stamping and cutting the wear-resistant plate 1. It is located in the middle of the upper edge and is symmetric left and right. The longitudinal section of the insertion plate edge 2 is in the shape of an isosceles trapezoid, and its lower end is of the same thickness as the wear-resistant plate 1, which is convenient for quickly inserting the wear-resistant plate 1 into the gap between the air suspension bracket and the bushing. The set length of the insertion plate edge 2 is greater than the outer diameter width of the corresponding bushing, which is convenient for aligning the central rotating shaft through hole 4 with the positioning shaft during insertion. At the same time, the insertion plate edge 2 protrudes above the upper edge of the wear-resistant plate 1, which can better align and insert into the gap between the bracket and the bushing. The lower end of the wear-resistant plate 1 is in a gradually shrinking shape, and the left and right sides are inwardly retracted into an inverted bottle shape. The lower end of the wear-resistant plate 1 is provided with an outwardly protruding limit block 3, which is integrally formed with the wear-resistant plate 1 and is outwardly protruded by a one-way stamping method. The limit block 3 is perpendicular to the plane where the wear-resistant plate 1 is located. The setting of the limit block 3 can not only assist in the hammering during the insertion of the wear-resistant plate 1, but also limit the insertion depth of the wear-resistant plate 1. It also forms left and right limits with the lower end of the air suspension bracket to prevent the wear-resistant plate 1 from rotating with the rotation of the bushing.

[0028] A number of uniformly arranged concave oil grooves 6 are provided on both the front and rear sides of the wear-resistant plate 1. The concave oil grooves 6 on the front side of the wear-resistant plate 1 and the concave oil grooves 6 on the rear side thereof are arranged in a staggered manner. Media such as butter can be filled in the concave oil grooves 6 to reduce relative friction and wear and improve the service life of the air suspension bracket and the bushing.

[0029] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the scope of the essence of the present invention should also fall within the protection scope of the present invention.

Claims

1. A wear-resistant structure of a sleeve of an air-suspended bracket, characterized in that: It includes a wear-resistant plate, which is square and has a shaft through hole. The upper edge of the wear-resistant plate is provided with a plug edge that is narrow at the top and wide at the bottom, and its longitudinal section is an isosceles trapezoidal shape; the lower end of the wear-resistant plate is provided with an outwardly protruding limit block, and the limit block is perpendicular to the plane where the wear-resistant plate is located.

2. The wear-resistant structure of the shaft sleeve of the air suspension bracket according to claim 1 is characterized in that: The limit block is integrally formed with the wear-resistant plate and is convexly formed by unidirectional stamping.

3. The wear-resistant structure of the shaft sleeve of the air suspension bracket according to claim 2 is characterized in that: The lower end of the wear-resistant plate gradually shrinks inwards and presents an inverted bottle mouth shape.

4. The wear-resistant structure of the shaft sleeve of the air suspension bracket according to claim 1 is characterized in that: The length of the edge of the plugging plate which is narrow at the top and wide at the bottom is set to be greater than the diameter of the corresponding shaft sleeve.

5. The wear-resistant structure of the shaft sleeve of the air suspension bracket according to claim 1 is characterized in that: The edge of the inserting plate which is narrow at the top and wide at the bottom protrudes from the upper edge of the wear-resistant plate.

6. The wear-resistant structure of the shaft sleeve of the air suspension bracket according to claim 1 is characterized in that: A plurality of evenly arranged hemispherical protrusions are arranged on the front and rear side surfaces of the wear-resistant plate, and the hemispherical protrusions on the front side surface are arranged alternately with the hemispherical protrusions on the rear side surface.

7. The wear-resistant structure of the shaft sleeve of the air suspension bracket according to claim 1 is characterized in that: The front and rear side surfaces of the wear-resistant plate are both provided with a plurality of evenly arranged inwardly concave oil grooves, and the inwardly concave oil grooves on the front side surface and the inwardly concave oil grooves on the rear side surface are arranged alternately.

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