CN212267172U - Composite material plate spring structure - Google Patents

Abstract

The utility model discloses a combined material leaf spring structure, include the leaf spring body of making by combined material and the lug board that links to each other with the automobile body is articulated, leaf spring body both ends fixedly connected with connecting elements, connecting elements are articulated with the lug board. Adopt the utility model discloses, lug plate one end links to each other with the automobile body is articulated, and the other end is articulated with connecting element, and connecting element and leaf spring body fixed connection, consequently through two hinge structure at lug plate both ends, increased the degree of freedom of leaf spring body motion, reduced the automobile body and experienced the probability of the fracture damage of leaf spring body after beating many times, strengthened the life of leaf spring body.

Description

Composite material plate spring structure

Technical Field

The utility model relates to a leaf spring structure, especially a combined material leaf spring structure.

Background

At present, a steel plate spring is traditionally adopted as a buffering and damping structure, but the steel plate spring is particularly heavy, so that the weight of the whole vehicle is increased, the fuel consumption rate is increased, and the control stability of the vehicle is adversely affected. In addition, the steel plate spring is generally formed by overlapping at least one piece of spring steel, and the life of the steel plate spring is shortened due to inevitable friction between adjacent spring steels.

In order to solve the problem, a composite plate spring is introduced to replace the traditional steel plate spring, and compared with the steel plate spring, the composite plate spring has the characteristics of light weight, large elastic strain, high strain ratio, long fatigue life, good safety fracture performance and the like. However, two ends of the existing composite plate spring are directly hinged with a vehicle body, the plate spring is not enough in degree of freedom due to the connection mode, two ends of the plate spring are easy to break, and the service life of the plate spring is influenced.

Disclosure of Invention

The utility model aims to provide a: the composite plate spring structure is high in plate spring motion freedom degree and aims to solve the problem that the two ends of a composite plate spring are directly hinged with a vehicle body to cause the insufficient motion freedom degree of the plate spring in the prior art.

In order to realize the purpose of the utility model, the utility model provides a following technical scheme:

the utility model provides a combined material leaf spring structure, includes the leaf spring body of making by combined material and the lug board that links to each other with the automobile body is articulated, leaf spring body both ends fixedly connected with connecting elements, and connecting elements is articulated with the lug board.

According to the technical scheme, one end of the lug plate is hinged with the vehicle body, the other end of the lug plate is hinged with the connecting member, and the connecting member is fixedly connected with the plate spring body, so that the degree of freedom of the movement of the plate spring body is increased through the two hinged structures at the two ends of the lug plate, the probability of breakage and damage of the plate spring body after the vehicle body jumps for multiple times is reduced, and the service life of the plate spring body is prolonged; the connection mode of both ends of the plate spring body and the vehicle body is the same, and the plate spring body and the vehicle body are connected through the connecting component and the lifting lug plate.

Further, the connecting component is hinged with the lug plate through a hinge shaft; the connecting component consists of a shaft sleeve matched with the hinged shaft and a fixing piece with one end sleeved on the periphery of the shaft sleeve, and the other end of the fixing piece is fixedly connected with the plate spring body. The shaft sleeve can rotate around the hinge shaft, and the fixing piece connects the shaft sleeve and the plate spring body together, so that the plate spring body can rotate around the hinge shaft along with the shaft sleeve, and the degree of freedom of movement of the plate spring body is increased.

Furthermore, the fixing piece is of a U-shaped clamping structure, the shaft sleeve is positioned at the U-shaped bottom of the fixing piece, and the U-shaped bottom end of the fixing piece is in a curved surface shape matched with the periphery of the shaft sleeve; the fixing member is clamped to the corresponding end of the plate spring body through the open end. The U-shaped bottom end of the fixing piece is in a curved surface shape matched with the periphery of the shaft sleeve, so that the fixing piece can be better fixed with the shaft sleeve, the deformation of the fixing piece in the fixing process is reduced, and the service life of the fixing piece is prolonged; the fixing piece is fixedly connected with the plate spring body through two planes of the opening end, and the connection stability is enhanced.

Furthermore, the plate spring body is fixed on the fixing piece through three pairs of bolts and nuts in a matched mode, and the three bolts are arranged in an isosceles triangle shape. The bolts are arranged in an isosceles triangle shape, so that the connection between the plate spring body and the fixing piece is more stable.

Further, the equal fixedly connected with backing plate in both sides about the leaf spring body middle part, the backing plate top that is located the upside still is fixed with the buffer block. The thickness of the cushion plate can be changed according to the needs and the change of the vehicle type; the upper side and the lower side of the plate spring body are respectively provided with a backing plate, so that the position of the plate spring body in the vertical direction can be changed along with the thickness of the backing plates; the buffer block limits the maximum jumping distance of the plate spring body towards the direction of the vehicle body, and the plate spring body is protected; the buffer block plays a role in buffering and damping, and also has a certain height limiting function, so that the problem that when heavy load runs on a bumpy road surface, a carriage or a frame impacts a riding bolt, and the bolt is difficult to disassemble and replace after being damaged is avoided; due to the fact that the base plate and the buffer block exist, the plate spring body with the same specification can be used on a front axle and a rear axle of the same vehicle type, or can be used on different vehicle types, and applicability of the plate spring body with each specification is improved.

Further, the middle part of the plate spring body is fixed on a plate spring seat of the axle through a riding bolt. The plate spring body of the structure has strong universality, so that the plate spring seat comprises a front axle or a rear axle; the U-shaped riding bolt is used for connection, so that the whole structure is stable and reliable.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that: the lifting lug plate is hinged to the vehicle body, the other end of the lifting lug plate is hinged to the connecting member, and the connecting member is fixedly connected with the plate spring body, so that the degree of freedom of movement of the plate spring body is increased through two hinged structures at the two ends of the lifting lug plate, the probability of breakage and damage of the plate spring body after the vehicle body jumps for multiple times is reduced, and the service life of the plate spring body is prolonged.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

figure 1 shows a cross-sectional view of the composite leaf spring structure of the present invention.

Fig. 2 shows a top view of fig. 1.

Fig. 3 shows an enlarged detail at a in fig. 1.

Figure 4 shows a schematic position of the composite leaf spring structure of the present invention in use.

Wherein the figures include the following reference numerals:

1 a plate spring body; 2, lifting lug plates; 3, hinging a shaft; 4 a connecting member; 41 shaft sleeve; 42 a fixing member; 421U-shaped bottom end; 422 open end; 51 a bolt; 52 a nut; 6, a base plate; 7, a buffer block; 8, a horse riding bolt; and 9, a plate spring seat.

Detailed Description

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1, the composite plate spring structure comprises a plate spring body 1 made of composite materials and a lug plate 2 connected with a vehicle body in an articulated mode, wherein connecting members 4 are fixedly connected to two ends of the plate spring body 1, and the connecting members 4 are connected with the lug plate 2 in an articulated mode.

As shown in fig. 3, preferably, the connecting member 4 is hinged to the ear plate 2 by means of a hinge shaft 3; the connecting member 4 is composed of a sleeve 41 fitted with the hinge shaft and a fixing member 42 having one end fitted around the outer periphery of the sleeve 41, and the other end of the fixing member 42 is fixedly connected to the plate spring body 1.

As shown in fig. 3, preferably, the fixing member 42 is in a U-shaped clip structure, the shaft sleeve 41 is located at the U-shaped bottom of the fixing member 42, and the U-shaped bottom 421 of the fixing member 42 is in a curved surface shape fitting with the outer periphery of the shaft sleeve 41; the fixing member 42 is clamped to the corresponding end of the plate spring body 1 through the open end 422.

As shown in fig. 2 and fig. 3, preferably, the plate spring body 1 is fixed on the fixing member 42 by three pairs of bolts 51 and nuts 52, and the three bolts 51 are arranged in an isosceles triangle.

Preferably, equal fixedly connected with backing plate 6 in both sides about the middle part of leaf spring body 1, the backing plate 6 top that is located the upside still is fixed with buffer block 7.

As shown in fig. 4, the plate spring body 1 is preferably fixed at its middle to a plate spring seat 9 of the axle by a saddle bolt 8.

Specifically, the two ends of the plate spring structure are fixed on the vehicle body through the lug plates 2, and the middle of the plate spring structure is fixed on a front axle or a rear axle through a riding bolt 8.

As shown in fig. 4, the utility model discloses a combined material leaf spring structure both ends are installed on the automobile body, leaf spring body 1 middle part and front axle or rear axle fixed connection, because leaf spring body 1 and connecting element 4 fixed connection, and connecting element 4 is articulated with lug plate 2, and lug plate 2 is articulated with the automobile body, has consequently increased the degree of freedom of leaf spring body 1 motion, has reduced the damage of leaf spring body 1 when the automobile body is beated.

As shown in fig. 1, since the thickness of the backing plate 6 can be changed according to the need and the variation of the vehicle type; the upper side and the lower side of the plate spring body 1 are respectively provided with a backing plate 6, so that the position of the plate spring body 1 in the vertical direction can be changed along with the thickness of the backing plates 6; the buffer block 7 limits the maximum jumping distance of the plate spring body 1 towards the vehicle body direction, and the plate spring body 1 is protected; due to the existence of the base plate 6 and the buffer block 7, the plate spring body 1 with the same specification can be used on a front axle and a rear axle of the same vehicle type, or can be used on different vehicle types, and the applicability of the plate spring body 1 with each specification is increased.

The scope of the present invention is defined not by the above-described embodiments but by the appended claims and equivalents thereof.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (6)

1. The utility model provides a combined material leaf spring structure, includes leaf spring body (1) made by combined material and ear plate (2) articulated continuous with the automobile body, its characterized in that, leaf spring body (1) both ends fixedly connected with connecting elements (4), connecting elements (4) with ear plate (2) are articulated.

2. The composite leaf spring structure according to claim 1, characterized in that the connecting member (4) is hinged to the lug plate (2) by means of a hinge axis (3); the connecting component (4) is composed of a shaft sleeve (41) matched with the hinge shaft and a fixing piece (42) with one end sleeved on the periphery of the shaft sleeve (41), and the other end of the fixing piece (42) is fixedly connected with the plate spring body (1).

3. The composite leaf spring structure according to claim 2, wherein the fixing member (42) is a U-shaped clip structure, the shaft sleeve (41) is located at the U-shaped bottom of the fixing member (42), and the U-shaped bottom end (421) of the fixing member (42) is a curved surface shape fitting with the outer periphery of the shaft sleeve (41); the fixing piece (42) is clamped on the corresponding end of the plate spring body (1) through an opening end (422).

4. The composite leaf spring structure according to claim 2, wherein the leaf spring body (1) is fixed on the fixing member (42) by three pairs of bolts (51) and nuts (52) in a matching manner, and the three bolts (51) are arranged in an isosceles triangle.

5. The composite plate spring structure according to claim 1, wherein the upper side and the lower side of the middle part of the plate spring body (1) are fixedly connected with backing plates (6), and a buffer block (7) is further fixed above the backing plate (6) on the upper side.

6. The composite leaf spring structure according to claim 1, characterized in that the leaf spring body (1) is fixed in its middle part to the leaf spring seat (9) of the axle by means of a saddle bolt (8).

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