Lightweight glass fiber plate spring

Abstract

The utility model relates to the field of automobile manufacturing, concretely relates to a kind of lightweight glass fiber plate spring.It includes glass fiber plate spring body, and lug is arranged at the both ends side of the glass fiber plate spring body, and iron sheet bushing is arranged in lug, lug is fixed in the both ends side of glass fiber plate spring body by hexagonal flange surface bolt and nut, lug bottom plate is also arranged between nut fixed position and lug, recessed buckle plate and convex buckle plate are arranged in the middle position of the glass fiber plate spring body, the recessed buckle plate and convex buckle plate are mutually buckled, and buckle guard cover is arranged outside the recessed buckle plate and convex buckle plate, lower backing plate is arranged below the middle position of the glass fiber plate spring body, positioning pin is arranged in the middle position of the lower backing plate, and the lower backing plate is set as left and right two pieces with positioning pin as middle shaft.The utility model reaches the differentiation design of left and right steel plate by increasing backing plate mode, to solve the problem of body posture skew.Plate spring part does not need to develop new part by adding new mould mode, and development cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing, specifically to a lightweight fiberglass leaf spring. Background Technology

[0002] The problem of lateral tilting of the cab is quite common in light truck models. This issue is mainly caused by uneven weight distribution on the left and right sides of the vehicle, leading to different forces on the leaf springs and resulting in different deformations. Additionally, the tilting mechanism of light truck cabs is often a single torsion bar structure, which also causes different forces on the left and right sides of the chassis frame, resulting in different deformations on the left and right sides. Therefore, conventional leaf spring models often address this lateral tilting issue by differentiating the left and right arc heights of the leaf springs. However, for models equipped with fiberglass leaf springs, the leaf spring body is manufactured using molds, and the arc height parameters are largely guaranteed by the mold state. Because each set of molds is costly, the arc height cannot be changed according to requirements like with traditional leaf springs. Currently, fiberglass leaf springs in existing models are installed with identical parts on both sides, making it impossible to use differentiated parts. This frequently results in lateral tilting of the cab in this type of vehicle. Utility Model Content

[0003] This utility model proposes a lightweight fiberglass leaf spring. Without altering the spring's arc height or requiring additional mold development, it differentiates the left and right sides of the fiberglass leaf spring simply by adding a shim plate. This allows for a rapid solution to the vehicle's tilting problem with minimal investment. The specific technical solution is as follows: A lightweight fiberglass leaf spring includes a fiberglass leaf spring body, with lugs at both ends of the body, each lug containing a sheet metal bushing. The lugs are fixed to both ends of the body by hexagonal flange bolts and nuts. A lug base plate is provided between the nut fixing position and the lug. A concave buckle plate and a convex buckle plate are provided in the middle of the body, interlocking with each other. A buckle plate protective cover is provided on the outside of the buckle plates. A lower pad is provided below the middle of the body, with a positioning pin in the middle of the lower pad. The lower pad is divided into two parts, left and right, with the positioning pin as the central axis.

[0004] Furthermore, the outer dimensions of the lower pad are consistent with those of the recessed buckle plate.

[0005] Furthermore, the lower pad is made of high-strength wear-resistant steel plate.

[0006] Furthermore, the lower pad is fixed to the recessed buckle plate by welding.

[0007] In this invention, the fiberglass leaf spring is longitudinally mounted on the vehicle and fixed to the front axle with U-bolts. The front end lug of the leaf spring is connected to the front support of the frame via a leaf spring pin, and the rear end lug is connected to the rear support of the frame via a leaf spring hanger. The left and right leaf springs deform differently due to the different mass on them. Because the front axle height remains constant, the different deformations of the leaf springs result in different left and right heights on the upper wing surface of the frame. By adjusting the thickness of the two lower pads on the left and right sides, the left and right heights of the upper wing surface of the frame are made consistent.

[0008] This invention addresses the issue of vehicle body tilt by adding a shim plate to achieve a differentiated design for the left and right steel plates. The leaf spring components do not require the development of new molds, thus reducing development costs. Attached Figure Description

[0009] Figure 1 A schematic diagram of the structure of this utility model; Figure 2 Top view of the structure of this utility model; Figure 3 Simulation diagram of this utility model; Figure 4 Diagram showing the usage status of this utility model.

[0010] Figure label: 1. Fiberglass leaf spring body; 2. Roller lug; 3. Sheet metal bushing; 4. Roller lug base plate; 5. Roller lug base plate; 6. Recessed buckle plate; 7. Convex buckle plate; 8. Buckle plate protective cover; 9. Lower pad; 10. Locating pin; 11. Hexagonal flange bolt; 12. Nut. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0012] like Figure 1-4As shown, a lightweight fiberglass leaf spring includes a fiberglass leaf spring body 1. Ears 2 are provided at both ends of the fiberglass leaf spring body 1, and sheet metal bushings 3 are provided inside the ears. The ears 2 are fixed to both ends of the fiberglass leaf spring body 1 by hexagonal flange bolts 11 and nuts 12. Ear base plates 4 and 5 are also provided between the nut 12 fixing position and the ear 2. A concave buckle plate 6 and a convex buckle plate 7 are provided at the middle position of the fiberglass leaf spring body 1. The concave buckle plate and the convex buckle plate interlock with each other, and a buckle plate protective cover 8 is provided outside the concave buckle plate and the convex buckle plate. A lower pad 9 is provided below the middle position of the fiberglass leaf spring body, and a positioning pin 10 is provided at the middle position of the lower pad 9. The lower pad 9 is divided into two parts, left and right, with the positioning pin as the central axis.

[0013] The outer dimensions of the lower pad 9 are the same as those of the recessed buckle plate 6. The lower pad 9 is made of high-strength wear-resistant steel plate. The lower pad is connected and fixed to the recessed buckle plate by welding.

[0014] In this invention, the fiberglass leaf spring is longitudinally mounted on the vehicle and fixed to the front axle with U-bolts. The front end lug of the leaf spring is connected to the front support of the frame via a leaf spring pin, and the rear end lug is connected to the rear support of the frame via a leaf spring hanger. The left and right leaf springs deform differently due to the different mass on them. Because the front axle height remains constant, the different deformations of the leaf springs result in different left and right heights on the upper wing surface of the frame. By adjusting the thickness of the two lower pads on the left and right sides, the left and right heights of the upper wing surface of the frame are made consistent.

[0015] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A lightweight fiberglass leaf spring, characterized in that: It includes a fiberglass leaf spring body, with lugs at both ends of the fiberglass leaf spring body. A sheet metal bushing is installed inside each lug. The lugs are fixed to both ends of the fiberglass leaf spring body by hexagonal flange bolts and nuts. A lug base plate is also provided between the nut fixing position and the lug. A concave buckle plate and a convex buckle plate are provided in the middle of the fiberglass leaf spring body. The concave buckle plate and the convex buckle plate interlock with each other, and a buckle plate protective cover is provided outside the concave buckle plate and the convex buckle plate. A lower pad is provided below the middle of the fiberglass leaf spring body, and a positioning pin is provided in the middle of the lower pad. The lower pad is divided into two parts, left and right, with the positioning pin as the central axis.

2. The lightweight fiberglass leaf spring according to claim 1, characterized in that: The outer dimensions of the lower pad are the same as those of the recessed buckle plate.

3. The lightweight fiberglass leaf spring according to claim 1, characterized in that: The lower pad is made of high-strength wear-resistant steel plate.

4. A lightweight fiberglass leaf spring according to claim 1, characterized in that: The lower pad is fixed to the concave buckle plate by welding.

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