Arch bridge structure high-strength rubber suspension assembly

Abstract

The utility model relates to the technical field of automobile suspensions, in particular to an arch bridge structure high-strength rubber suspension assembly which comprises an arch bridge type balance beam assembly, a trapezoid support is fixedly installed in the center of the top of the balance beam assembly, and rubber main springs are symmetrically installed on the waist faces of the two sides of the trapezoid support. The U-shaped hanging bracket is fixedly connected with the frame, a rubber auxiliary spring is mounted at the bottom of the U-shaped hanging bracket, and a limiting device is connected between the U-shaped hanging bracket and the trapezoidal bracket; shaft sleeve mounting cavities are formed in the two ends of the equalizing beam assembly respectively, shaft sleeves are mounted in the shaft sleeve mounting cavities, bearings are rotationally mounted in the shaft sleeves, and each shaft sleeve mounting cavity comprises a top supporting part and a bottom supporting part; the balancing beam assembly adopts an arch bridge type to replace a traditional linear type, the arch bridge type structure is higher in strength and not prone to irregular deformation and bending, the requirement for welding strength is greatly lowered through the top supporting part and the bottom supporting part, the shaft sleeve and the balancing beam are not prone to separation, the structural strength is high, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile suspension, especially relates to an arch bridge structure high strength rubber suspension assembly assembly. BACKGROUND

[0002] Commercial vehicle chassis suspension is divided into leaf spring suspension, air suspension and rubber suspension according to structure and damping element. At present, more than 90% of domestic commercial vehicle chassis suspensions select leaf spring suspension, with the development trend of domestic over-limit and vehicle lightweight, air suspension is gradually used and popularized on domestic commercial vehicle chassis, limited to the higher cost of air suspension, air suspension needs a certain time to popularize in China. Rubber suspension takes into account lightweight and cost advantage, and has been popularized and used on domestic commercial vehicle chassis in recent years. Common rubber suspensions on the market mainly include saddle support assembly, balance beam assembly and rubber spring, shock absorber, auxiliary spring and other components, the components adopt tailor-welding process, the structure is single, and the weight and structure can be further optimized and reduced.

[0003] The balance beam of the rubber suspension in the prior art is balanced, such as the utility model patents with patent numbers CN217532452U and CN212950015U, the bottom of the balance beam is a flat structure, and the upper part of the balance beam is inclined and narrowed to both ends. This symmetrical balanced structure design makes the bottom straight-line structure of the balance beam prone to irregular deformation and bending after long-term stress, affecting the overall balance of the vehicle. Moreover, the shaft sleeve is welded on the upper part of both ends of the balance beam, and when the shaft sleeve is stressed after being welded with the balance beam, the shaft sleeve is most stressed at the shaft center, and the tension at this position is entirely supported by the welding force between the shaft sleeve and the balance beam, which causes the shaft sleeve and the balance beam to be easily separated, has low structural strength, and affects the service life. UTILITARY MODEL CONTENT

[0004] The utility model solves the technical problem to provide an arch bridge structure high strength rubber suspension assembly assembly with high structural strength, reasonable design, long service life, and not easy to separate the shaft sleeve from the balance beam and not easy to deform.

[0005] The utility model discloses a high -strength rubber suspension assembly of arch bridge structure, including the balanced beam assembly of arch bridge type, the top center of balanced beam assembly is fixedly installed with trapezoidal support, the both sides waist surface of trapezoidal support is symmetrically installed with rubber main spring, still including the U type hanger of car frame fixed connection, the bottom of U type hanger is installed with rubber auxiliary spring, the between U type hanger with trapezoidal support is connected with limiting device, the both ends of balanced beam assembly are set up with the axle sleeve installation cavity respectively, the axle sleeve installation cavity installs the axle sleeve, the bearing is rotatably installed in the axle sleeve, the axle sleeve installation cavity includes top support part and bottom support part, the top support part is used to resist the upward force of bearing, and the bottom support part is used to resist the downward force of bearing.

[0006] As a preferred technical scheme, the balanced beam assembly includes an integrally formed arch-shaped balance beam, the arch-shaped balance beam includes two parallel and spaced arc-shaped side plates, an arc-shaped top plate is integrally arranged between the top portions of the two arc-shaped side plates, an arc-shaped bottom plate is fixedly installed between the bottom portions of the two arc-shaped side plates, the axle sleeve installation cavity is located at the two ends of the arch-shaped balance beam, the top support part is the end portion of the arc-shaped top plate, and the bottom support part is the end portion of the arc-shaped side plate.

[0007] As a preferred technical scheme, the trapezoidal support includes two trapezoidal installation side plates fixedly installed with the two arc-shaped side plates, a trapezoidal installation top plate is fixedly installed between the two sides and the top of the two trapezoidal installation side plates, and the two waist surfaces of the trapezoidal installation top plate are used to install the rubber main spring.

[0008] As a preferred technical scheme, the two waist surfaces of the trapezoidal installation top plate are respectively recessed inward to form arc-shaped main spring mounting seats.

[0009] As a preferred technical scheme, the rubber main spring includes a top arc-shaped support and a bottom arc-shaped support, two or more intermediate arc-shaped supports are arranged between the top arc-shaped support and the bottom arc-shaped support, the bending radii of the top arc-shaped support, the bottom arc-shaped support and the intermediate arc-shaped supports are the same and the intervals of the intermediate arc-shaped supports are equal, the bottom arc-shaped support is matched with the arc-shaped main spring mounting seat, a top rubber block is integrally vulcanized between the top arc-shaped support and the adjacent intermediate arc-shaped support, an intermediate rubber block is integrally vulcanized between the adjacent two intermediate arc-shaped supports, and a bottom rubber block is integrally vulcanized between the bottom arc-shaped support and the adjacent intermediate arc-shaped support.

[0010] As a preferred technical scheme, the limiting device includes a limiting chain, upper lifting lugs are fixedly installed on the two sides of the U-shaped hanger, lower lifting lugs are fixedly installed on the trapezoidal installation side plates, the upper lifting lugs are fixedly connected with the top end of the limiting chain, and the lower lifting lugs are fixedly connected with the bottom end of the limiting chain.

[0011] Preferably, the inner surface of the shaft sleeve installation cavity is a circular arc surface, and the central angle of the circular arc surface is greater than 180° and less than 225°.

[0012] Due to the adoption of the above technical scheme, the arch bridge structure high-strength rubber suspension assembly includes an equalizing beam assembly in the shape of an arch bridge, a trapezoidal support is fixedly installed at the top center of the equalizing beam assembly, rubber main springs are symmetrically installed on the two side waist surfaces of the trapezoidal support, a U-shaped hanger is fixedly connected with the vehicle frame, a rubber auxiliary spring is installed at the bottom of the U-shaped hanger, and a limiting device is connected between the U-shaped hanger and the trapezoidal support; shaft sleeve installation cavities are respectively formed at the two ends of the equalizing beam assembly, shaft sleeves are installed in the shaft sleeve installation cavities, bearings are rotatably installed in the shaft sleeves, the shaft sleeve installation cavities include top supporting portions and bottom supporting portions, the top supporting portions are used for resisting the upward force of the bearings, and the bottom supporting portions are used for resisting the downward force of the bearings. BRIEF DESCRIPTION OF DRAWINGS

[0013] The following drawings merely aim to schematically illustrate and explain the present application and do not limit the scope of the present application. Among them:

[0014] Figure 1 is a schematic diagram of the three-dimensional structure of the arch bridge structure high-strength rubber suspension assembly of the present application;

[0015] Figure 2 is Figure 1 B view in the above-mentioned figure;

[0016] Figure 3 is Figure 1 C view in the above-mentioned figure;

[0017] Figure 4 is Figure 3 A-A view in the above-mentioned figure;

[0018] Figure 5 is Figure 4 the local enlarged view of I in the above-mentioned figure;

[0019] Figure 6 is a schematic diagram of the local structure of the arch bridge structure high-strength rubber suspension assembly of the present application;

[0020] Figure 7 is one of the structural schematic diagram of the utility arch beam;

[0021] Figure 8 is two of the structural schematic diagram of the utility arch beam.

[0022] In the figure: 1 - equalizing beam assembly; 11 - arc-shaped side plate; 12 - arc-shaped top plate; 13 - arc-shaped bottom plate; 14 - shaft sleeve installation cavity; 141 - top support part; 142 - bottom support part; 15 - shaft sleeve; 16 - bearing; 2 - trapezoidal support; 21 - trapezoidal installation side plate; 22 - trapezoidal installation top plate; 23 - arc-shaped main spring installation seat; 3 - rubber main spring; 31 - top arc-shaped support; 32 - bottom arc-shaped support; 33 - middle arc-shaped support; 34 - top rubber block; 35 - middle rubber block; 36 - bottom rubber block; 4 - U-shaped hanger; 5 - rubber auxiliary spring; 6 - limiting chain; 7 - upper lifting lug; 8 - lower lifting lug. DETAILED DESCRIPTION

[0023] The utility model is further described below in combination with the drawings and examples. In the following detailed description, only certain exemplary embodiments of the utility model are described by way of illustration. It is needless to say that those skilled in the art can realize that the described embodiments can be modified in various ways without departing from the spirit and scope of the utility model. Therefore, the drawings and description are essentially illustrative, and are not used to limit the protection scope of the claims.

[0024] As Figures 1 to 8 It is shown together that the arch bridge structure high-strength rubber suspension assembly includes the equalizing beam assembly 1 of arch bridge type, the trapezoidal support 2 is fixedly installed at the top center of the equalizing beam assembly 1, the rubber main spring 3 is symmetrically installed on the two side waist surfaces of the trapezoidal support 2, further includes the U-shaped hanger 4 fixedly connected with the frame, the rubber auxiliary spring 5 is installed at the bottom of the U-shaped hanger 4, the limiting device is connected between the U-shaped hanger 4 and the trapezoidal support 2; the shaft sleeve installation cavity 14 is set up at the both ends of the equalizing beam assembly 1, the shaft sleeve 15 is installed in the shaft sleeve installation cavity 14, the bearing 16 is rotatably installed in the shaft sleeve 15, the shaft sleeve installation cavity 14 includes the top support part 141 and the bottom support part 142, the top support part 141 is used to resist the upward force of the bearing 16, the bottom support part 142 is used to resist the downward force of the bearing 16; because the equalizing beam assembly 1 adopts the arch bridge type to replace the traditional straight line type, the deformation accommodation rate of the arch bridge type structure is higher than that of the straight line type structure, the strength is stronger, and the irregular deformation bending is not easy to occur, and furthermore, under the limiting of the top support part 141 and the bottom support part 142, whether it is the upward force or the downward force, it does not need to completely rely on the welding strength of the shaft sleeve 15 and the beam, thus the requirement of welding strength is greatly reduced, the shaft sleeve 15 and the beam are not easy to separate, the structural strength is high, and the service life is prolonged.

[0025] As Figure 7 and Figure 8 shown, the equalizing beam assembly 1 includes an integrally formed arched equalizing beam, which includes two parallel and spaced arc-shaped side plates 11, an arc-shaped top plate 12 integrally arranged between the top portions of the two arc-shaped side plates 11, and an arc-shaped bottom plate 13 fixedly installed between the bottom portions of the two arc-shaped side plates 11. A shaft sleeve installation cavity 14 is located at both ends of the arched equalizing beam, a top support portion 141 is an end portion of the arc-shaped top plate 12, and a bottom support portion 142 is an end portion of the arc-shaped side plate 11. The cross section of the arched equalizing beam is U-shaped and integrally formed, and the presence of the arc-shaped bottom plate 13 further enhances the strength and stability of the arched beam. The curvature of the arc-shaped side plate 11 is determined according to the bottom space of the vehicle, and the arc-shaped side plate 11, the arc-shaped top plate 12, and the arc-shaped bottom plate 13 are all curved downward, improving the overall structural strength. The top support portion 141 provides support for the upward force of the bearing 16, and the bottom support portion 142 provides support for the downward force of the bearing 16.

[0026] As Figure 1 and Figure 6 shown, the trapezoidal bracket 2 includes trapezoidal installation side plates 21 fixedly installed with the two arc-shaped side plates 11, respectively, and a trapezoidal installation top plate 22 fixedly installed between the two sides and the top of the two trapezoidal installation side plates 21. The two waist surfaces of the trapezoidal installation top plate 22 are used to install the rubber main spring 3. The bottom of the trapezoidal installation side plate 21 is fixedly connected with the arc-shaped side plate 11, the trapezoidal installation top plate 22 covers the trapezoidal installation side plate 21, the width of the trapezoidal installation top plate 22 is greater than the distance between the two arc-shaped side plates 11, and the trapezoidal installation top plate 22 provides a stable support surface for the rubber main spring 3.

[0027] As Figure 6 shown, the two waist surfaces of the trapezoidal installation top plate 22 are respectively recessed to form arc-shaped main spring installation seats 23. The arc-shaped main spring installation seats 23 perfectly match the bottom arc-shaped brackets 32 of the rubber main spring 3, not only increasing the contact area and dispersing the force more evenly, but also making the installation more secure.

[0028] As Figure 1 , Figure 4 and Figure 5As shown, the rubber main spring 3 includes a top arc-shaped support 31 and a bottom arc-shaped support 32, and two or more intermediate arc-shaped supports 33 are arranged between the top arc-shaped support 31 and the bottom arc-shaped support 32, the bending radii of the top arc-shaped support 31, the bottom arc-shaped support 32 and the intermediate arc-shaped supports 33 are the same and the intervals are equal, the bottom arc-shaped support 32 is matched with the arc-shaped main spring mounting seat 23, a top rubber block 34 is integrally vulcanized between the top arc-shaped support 31 and the adjacent intermediate arc-shaped support 33, an intermediate rubber block 35 is integrally vulcanized between the adjacent two intermediate arc-shaped supports 33, and a bottom rubber block 36 is integrally vulcanized between the bottom arc-shaped support 32 and the adjacent intermediate arc-shaped support 33. The top rubber block 34, the intermediate rubber block 35 and the bottom rubber block 36 all adopt an arc-shaped structure, and the top arc-shaped support 31, the intermediate arc-shaped supports 33 and the bottom arc-shaped support 32 also adopt an arc-shaped structure, compared with the flat plate structure in the prior art, the contact area is increased and the risk of cracking is reduced. The number of the intermediate rubber blocks 35 can be selected according to the use requirement, and two intermediate rubber blocks 35 are selected in the embodiment.

[0029] As shown in the drawings, Figures 1 to 3 As shown, the limiting device includes a limiting chain 6, the U-shaped hanging bracket 4 is fixedly installed with upper hanging ears 7 on both sides, the trapezoidal installation side plate 21 is fixedly installed with lower hanging ears 8, the upper hanging ears 7 are fixedly connected with the top end of the limiting chain 6, and the lower hanging ears 8 are fixedly connected with the bottom end of the limiting chain 6. The limiting chain 6 is used for limiting the distance between the equalizing beam assembly 1 and the U-shaped hanging bracket 4.

[0030] As shown in the drawings, Figure 7 As shown, the inner surface of the 1 shaft sleeve installation cavity 14 is a circular arc surface, the central angle of the circular arc surface is greater than 180° and less than 225°. Figure 7 The central angle a of the middle circular arc surface is 225°, which is a large half circular arc, so that the installation and welding of the shaft sleeve 15 are facilitated, and the bearing 16 can bear greater upward or downward force. The welding strength requirement of the shaft sleeve 15 and the cross beam is reduced.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An assembly of high-strength rubber suspension for arch bridge structures, characterized in that: The balanced beam assembly (1) includes a trapezoidal support (2) fixedly installed at the top center of the balanced beam assembly (1), rubber main springs (3) symmetrically installed on the two side waist surfaces of the trapezoidal support (2), a U-shaped hanger (4) fixedly connected with the vehicle frame, rubber auxiliary springs (5) installed at the bottom of the U-shaped hanger (4), and a limiting device connected between the U-shaped hanger (4) and the trapezoidal support (2).

2. The arch bridge structure high strength rubber suspension assembly of claim 1, wherein: The balanced beam assembly (1) includes an integrally formed arch-shaped balance beam, the arch-shaped balance beam includes two parallel and spaced arc-shaped side plates (11), an arc-shaped top plate (12) is integrally arranged between the top portions of the two arc-shaped side plates (11), and an arc-shaped bottom plate (13) is fixedly installed between the bottom portions of the two arc-shaped side plates (11), the shaft sleeve installation cavities (14) are located at the two ends of the arch-shaped balance beam, the top support portions (141) are the end portions of the arc-shaped top plate (12), and the bottom support portions (142) are the end portions of the arc-shaped side plates (11).

3. The high strength rubber hanger assembly for arch bridge structures of claim 2, wherein: The trapezoidal support (2) includes trapezoidal installation side plates (21) fixedly installed with the two arc-shaped side plates (11) respectively, a trapezoidal installation top plate (22) fixedly installed between the two sides and the top of the two trapezoidal installation side plates (21), and two waist surfaces of the trapezoidal installation top plate (22) used for installing the rubber main springs (3).

4. The high strength rubber suspension assembly for arch bridge structures of claim 3, wherein: Two waist surfaces of the trapezoidal installation top plate (22) are respectively inwardly recessed to form arc-shaped main spring installation seats (23).

5. The high-strength rubber suspension assembly for arch bridge structures as described in claim 4, characterized in that: The rubber main spring (3) includes a top arc-shaped support (31) and a bottom arc-shaped support (32), two or more intermediate arc-shaped supports (33) arranged between the top arc-shaped support (31) and the bottom arc-shaped support (32), the top arc-shaped support (31), the bottom arc-shaped support (32), and the intermediate arc-shaped supports (33) having the same bending curvature and equal spacing, the bottom arc-shaped support (32) matched with the arc-shaped main spring installation seat (23), a top rubber block (34) integrally vulcanized between the top arc-shaped support (31) and the adjacent intermediate arc-shaped support (33), an intermediate rubber block (35) integrally vulcanized between two adjacent intermediate arc-shaped supports (33), and a bottom rubber block (36) integrally vulcanized between the bottom arc-shaped support (32) and the adjacent intermediate arc-shaped support (33).

6. The high strength rubber suspension assembly for arch bridge structures of claim 3, wherein: The limiting device comprises a limiting chain (6), upper hanging ears (7) are fixedly installed on both sides of the U-shaped hanging bracket (4), lower hanging ears (8) are fixedly installed on the trapezoidal installation side plate (21), the upper hanging ears (7) are fixedly connected with top ends of the limiting chain (6), and the lower hanging ears (8) are fixedly connected with bottom ends of the limiting chain (6).

7. The high strength rubber suspension assembly for arch bridge structures of any one of claims 1 to 6, wherein: The inner surface of the shaft sleeve installation cavity (14) is a circular arc surface, and the central angle of the circular arc surface is greater than 180 degrees and less than 225 degrees.

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