CN217705409U

CN217705409U - Axle linking assembly for trailer air suspension

Info

Publication number: CN217705409U
Application number: CN202221957432.8U
Authority: CN
Inventors: 马玉磊; 李兆杰; 牛宝晗; 梁浩; 李永春; 宋振国
Original assignee: Shandong Ruiyang Automobile Technology Co ltd
Current assignee: Shandong Ruiyang Automobile Technology Co ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-11-01
Anticipated expiration: 2032-07-27

Abstract

The utility model provides an axle links up subassembly for trailer air suspension adopts the steel casting to replace being connected between axle and the leaf spring for solve among the prior art drawback that connection structure rigidity is not enough, became invalid easily between axle and the leaf spring. The automobile axle plate comprises a plate spring cover plate, a plate spring supporting plate and an axle supporting plate which are arranged from top to bottom, wherein the plate spring cover plate, the plate spring supporting plate and the axle supporting plate are fixedly connected with a plate spring and an axle under the fastening action of a U-shaped bolt, and the plate spring cover plate, the plate spring supporting plate and the axle supporting plate are cast parts. The use of this subassembly can form rigid, permanent non-deformable connection between axle and the leaf spring for leaf spring and axle between all around be a firm relation on four directions, solved the axle along axis direction round trip movement's problem, and solved the leaf spring along axle direction round trip movement's problem, do benefit to the stationarity that improves the driving, avoid the later stage frequent maintenance to bring use cost's promotion.

Description

Axle linking assembly for trailer air suspension

Technical Field

The utility model relates to an axle technique for trailer air suspension.

Background

Most semitrailer air suspension on the existing market uses the european style structure, and the leaf spring is the spring steel material promptly, and this european style structure all has the relevant spare part that the leaf spring installation is fastened.

The connection relationship between the axle and the leaf spring is generally directly connected by a rigid steel hoop in the prior art, for example: CN206124654U discloses a connection structure of a leaf spring and an axle, the connection end of the leaf spring is connected with the axle, the fixed end of the leaf spring is fixed with a leaf spring mounting bracket, which includes: leaf spring connecting seat and spacing bolt. The bottom of the plate spring connecting seat is provided with a groove, and the plate spring connecting seat is attached to the axle through the groove and is welded and fixed. The plate spring and the axle are connected by bolts and welded and fixed, so that the problem of easy fracture exists, and the assembly property is poor.

CN203957770U discloses a connecting structure of a non-independent suspension axle and a plate spring. Among the connection structure of non-independent suspension axle and leaf spring, the leaf spring passes through first U-shaped bolt and second U-shaped bolt fastening on the axle, the leaf spring is equipped with leaf spring side backing plate with the both sides of above-mentioned U-shaped bolt contact, be equipped with on the leaf spring side backing plate first U-shaped bolt with the limit structure of second U-shaped bolt, just leaf spring side backing plate is close to one side of leaf spring is equipped with the rubber gasket, the thickness of rubber gasket is greater than the leaf spring with first U-shaped bolt the clearance width between the second U-shaped bolt. In the technology, the adopted parts are steel sheet stamping parts which are poor in rigidity and easy to deform, and therefore connection is disabled.

SUMMERY OF THE UTILITY MODEL

In order to solve the not enough of prior art, the utility model provides an axle links up subassembly for trailer air suspension adopts the steel casting to replace being connected between axle and the leaf spring for solve among the prior art drawback that connection structure rigidity is not enough, became invalid easily between axle and the leaf spring.

The utility model provides a technical scheme that its technical problem adopted does:

a axle links up subassembly for trailer air suspension, including leaf spring apron, leaf spring layer board and the axle layer board that top-down set up to fixed connection leaf spring and axle under the fastening of U-shaped bolt, its characterized in that, leaf spring apron, leaf spring layer board and axle layer board are the casting part.

Further, the plate spring cover plate is composed of a middle transition area and arc-shaped parts at two ends, an arc-shaped groove is formed in each arc-shaped part, and the transition area is a flat plate.

Further, the transition zone and the arc-shaped part are designed to have equal thickness.

Furthermore, a round hole for avoiding a bolt on the leaf spring is formed in the center of the transition area.

Further, the transition area is provided with a reinforcing rib connecting the arc parts at two sides.

Furthermore, both sides of the upper surface of the plate spring supporting plate are provided with upper bulges for limiting the plate spring, and the lower surface of the plate spring supporting plate is provided with lower bulges for limiting a lower axle, wherein the upper bulges and the lower bulges are vertically arranged.

Furthermore, steel pin through holes are also formed in the plate spring supporting plate.

Further, a bolt avoiding hole is formed in the center of the plate spring supporting plate.

Protruding edges are arranged on two sides of the upper surface of the axle supporting plate, and bolt holes are formed in four corner positions of the axle supporting plate.

The utility model has the advantages that:

the use of this subassembly can form rigid, permanent non-deformable connection between axle and the leaf spring for leaf spring and axle between all around be a firm relation on four directions, solved the axle along axis direction round trip movement's problem, and solved the leaf spring along axle direction round trip movement's problem, do benefit to the stationarity that improves the driving, avoid the later stage frequent maintenance to bring use cost's promotion.

The main parts are all made of steel castings, and the connection rigidity and connection strength of the axle and the plate spring are improved. The assembly nature is good, the utility model discloses a U-shaped bolt and steel casting assemble, and is simple reliable, need not electric welding and connects, satisfies mechanical product assembly process requirement.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the axle adapter assembly shown in the assembled position.

Fig. 2 is a perspective view of the leaf spring cover plate.

Fig. 3 is a side view of the leaf spring cover plate.

Fig. 4 is a sectional view taken along line a-a in fig. 3.

Fig. 5 is a sectional view taken along line B-B in fig. 3.

Fig. 6 is a perspective view of a leaf spring pallet.

Fig. 7 is a bottom view of the leaf spring platform.

Fig. 8 is a cross-sectional view taken along line C-C of fig. 7.

FIG. 9 is a perspective view of an axle bracket.

In the figure:

100 plate spring cover plates, 110 arc parts, 111 arc grooves, 120 transition areas, 121 round holes, 122 reinforcing ribs,

200 leaf spring supporting plates, 210 convex, 220 convex, 230 bolt holes, 240 steel pin through holes, 250 bolt avoiding holes,

300 axle pallet, 310 raised edge, 320 bolt hole,

a 400 plate spring is arranged on the upper surface of the plate spring,

the axle of the vehicle 500 is provided with a plurality of wheels,

600U-shaped bolt.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 2-5, a leaf spring cover 100 for a trailer air suspension is shown, the leaf spring cover 100 being a cast part, isostatically cast. The plate spring cover plate 100 has arc portions 110 at both ends, and the arc portion 110 has an arc groove 111 for fitting with the U-bolt, and both ends of the arc portion at this position contact with the plate spring below, that is, the plate spring provides a lower support for the arc portion. The area between the two arc-shaped parts 110 is a transition area 120, the transition area 120 is a flat plate, the flat plate has the arc-shaped parts with the same thickness, a round hole 121 for avoiding the bolt on the plate spring is arranged at the center of the transition area 120, and the round hole 121 is also a fabrication hole.

Furthermore, a reinforcing rib 122 for connecting the arc parts at the two sides is arranged on the flat plate of the transition region, so as to improve the bending resistance. In this embodiment, the transition region is directly attached to the underlying leaf spring surface.

Referring to fig. 6-8, a leaf spring platform 200 for a trailer air suspension is arranged in a push-up and push-down manner between a leaf spring and an axle, wherein the leaf spring 400 is located above the leaf spring platform 200, the axle 500 is located below the leaf spring platform, and the axle and the leaf spring are in a 90-degree perpendicular cross-over configuration. In this embodiment, the plate spring support plate 200 is a flat plate structure as a whole, and upper protrusions 210 for limiting the plate spring are provided on both sides of the upper surface of the plate spring support plate 200, and lower protrusions 220 for limiting the lower axle are provided on the lower surface of the plate spring support plate, wherein the upper protrusions and the lower protrusions are vertically provided. Four bolt holes 230 are arranged at the corner positions around the plate spring supporting plate and are used for being matched with U-shaped bolts, and the four bolt holes penetrate through the upper bulge and the lower bulge on the plate spring supporting plate, namely the final position of the plate spring supporting plate, so that the supporting strength of the plate spring supporting plate between an axle and a plate spring can be effectively improved.

The leaf spring support plate 200 is further provided with steel pin through holes 240 for providing additional functions, which will not be described in detail.

The central position at this leaf spring layer board is provided with a leaf spring bolt and dodges hole 250, and should dodge and adopt the lightweight design between hole and the leaf spring layer board main part, promptly, the fretwork design reduces weight.

Referring to fig. 9, an axle bracket 300 for a trailer air suspension, the axle bracket 300 is positioned below an axle 500 and secured from below. The axle pallet 300 has raised edges 310 on both sides of its upper surface for engaging with an axle, and bolt holes 320 are provided at four corners of the axle pallet, the bolt holes 320 being adapted to engage with U-bolts 600. And a hollow structure is arranged on the axle supporting plate, so that the dead weight is reduced.

The installation and assembly process, referring to fig. 1, as an alternative embodiment, first install the plate spring supporting plate 200 on the corresponding position of the axle, then install the plate spring 400 on the plate spring supporting plate, then install the plate spring cover plate 100 on the plate spring 400, then install the U-shaped bolt 600 on the plate spring cover plate 100, pass through the plate spring supporting plate 100 from top to bottom, finally install the axle supporting plate 300 and then tighten the nut of the U-shaped bolt, thus completing the assembly of the structure.

The axle layer board, leaf spring apron in this embodiment all adopt casting structure spare part, and casting spare part has better roughness for the spare part of forging and pressing technology production, has more excellent clamping-ability after the U-shaped bolt-up.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements of the present invention may be made by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A subassembly is joined up to axle for trailer air suspension, leaf spring apron (100), leaf spring layer board (200) and axle layer board (300) that include top-down setting to fixed connection leaf spring and axle under the fastening of U-shaped bolt, its characterized in that, leaf spring apron (100), leaf spring layer board (200) and axle layer board (300) are the casting part.

2. The axle adapter assembly for a trailer air suspension as claimed in claim 1, wherein the leaf spring cover plate (100) is comprised of a central transition region and two arcuate portions (110) at each end, and has an arcuate recess (111) in the arcuate portions (110), the transition region (120) being a flat plate.

3. The axle adapter assembly for a trailer air suspension of claim 2 wherein the transition region and the arcuate portion are of equal thickness design.

4. The axle adapter assembly for a trailer air suspension as claimed in claim 3, wherein a central location of the transition region (120) is provided with a circular hole (121) for avoiding a bolt on a leaf spring.

5. The axle adapter assembly for a trailer air suspension of claim 4 wherein said transition region is provided with a reinforcement rib connecting the two side arcs.

6. The axle adapter assembly for a trailer air suspension of claim 2 wherein the leaf spring platform (200) is provided with an upper protrusion (210) on each side of its upper surface to limit the leaf spring and a lower protrusion (220) on its lower surface to limit the lower axle, wherein the upper and lower protrusions are vertically present.

7. The axle adapter assembly for a trailer air suspension of claim 6 wherein a steel pin aperture (240) is further provided in the leaf spring platform (200).

8. The axle adapter assembly for a trailer air suspension of claim 7 wherein a bolt relief hole (250) is provided in a central location of the leaf spring platform.

9. The axle adapter assembly for a trailer air suspension of claim 6 wherein said axle bracket (300) has raised edges (310) on both sides of its upper surface and bolt holes (320) at four corners of said axle bracket.