Steel plate spring support assembly

By designing a leaf spring bracket assembly, using the base, side plates, and pressure plates to form a slot, and welding it to the power axle, the problem of U-shaped tie rod loosening was solved, achieving stable fixing and lightweighting of the leaf spring, and improving safety and stability.

CN223508042UActive Publication Date: 2025-11-04HEFEI NANFANG AUTO PARTS
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Patent Information

Application Number
CN202423299213.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-11-04
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

In existing technologies, the U-shaped tie rod nut of leaf springs is prone to loosening, which can cause the entire structure to fall off, posing a safety hazard.

Method used

Design a leaf spring bracket assembly, including two opposing brackets, forming a U-shaped slot through a base, side plates and pressure plates, and welding it to the power axle. The leaf spring is fixed with bolts, and wear-resistant blocks are provided on the side plates and pressure plates to reduce wear.

Benefits of technology

This design achieves stable fixation of the leaf spring, avoiding safety hazards caused by loosening, improving safety and stability, and also realizing a lightweight structure, reducing resource consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a steel plate spring support assembly which comprises two supports, the supports form a first clamping groove of a U-shaped structure through a base, a side plate and a pressing plate, and the supports form a second clamping groove of a U-shaped structure through a square groove in the bottom of the side plate and two bottom plates connected to the two sides of the square groove. The two supports are clamped on the power bridge through the second clamping grooves and are welded and fixed, the two supports are clamped on the two sides of the steel plate spring, the steel plate spring is clamped in the first clamping grooves of the two supports, the middle of the steel plate spring is fixed to the power bridge, installation is convenient, the steel plate spring can be structurally fixed, and the service life of the steel plate spring is prolonged. The steel plate spring support assembly is simple in structure, does not cause potential safety hazards even if the steel plate spring support assembly is loosened, plays a very important role in a truck with a steel plate spring damping structure, realizes a lightweight structure of the steel plate spring support assembly, is high in safety, good in stability and light and convenient to use, and reduces resource consumption.
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Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology and relates to the installation of leaf springs, specifically a leaf spring bracket assembly. Background Technology

[0002] Leaf springs are a primary load-bearing component in heavy-duty vehicles. They consist of multiple steel plates of unequal length and curvature stacked together. After installation, both ends naturally bend upwards. When the road surface impacts the wheels, the plates deform, providing cushioning and vibration damping. During installation, the two ends of the leaf spring are hinged to the vehicle frame, and the middle section is typically fixed to the drive axle using a U-shaped tie rod. During use, the nuts on the U-shaped tie rod can easily loosen, causing the entire structure to detach, posing a significant safety hazard. Utility Model Content

[0003] To address the technical problems existing in the background art, this utility model proposes a leaf spring support assembly that can structurally fix the leaf spring, achieving a lightweight structure for the leaf spring support assembly, with high safety, good stability, and easy use, while reducing resource consumption.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A leaf spring bracket assembly includes two opposing brackets. Each bracket includes a base, a side plate, and a pressure plate. The pressure plate is parallel to the base. One end of the side plate is perpendicularly connected to the base, and the other end of the side plate is perpendicularly connected to the pressure plate, forming a first U-shaped groove between the base, side plate, and pressure plate. A square groove is provided at the bottom of the side plate. The base includes two opposing bottom plates, which are respectively connected to both sides of the square groove, forming a second U-shaped groove between the two bottom plates.

[0006] Furthermore, the base plate is provided with two threaded countersunk holes, and bolts are threadedly connected in the countersunk holes.

[0007] Furthermore, the side plate has a trapezoidal structure, with the long side of the trapezoid connected to the base and the short side connected to the pressure plate. The width of the pressure plate gradually decreases towards the side away from the side plate.

[0008] Furthermore, a first wear-resistant block is welded to the side plate near the first slot, and a second wear-resistant block is welded to the side plate near the first slot.

[0009] Furthermore, the second wear-resistant block adopts an arc-shaped protrusion with its axis perpendicular to the side plate.

[0010] Furthermore, a first weight-reducing groove is provided on the side of the side plate away from the first slot, and a second weight-reducing groove is provided on the side of the pressure plate away from the first slot. The first weight-reducing groove and the second weight-reducing groove are connected to each other.

[0011] Furthermore, the base also includes two opposing retaining plates, which are vertically connected to the inner side of the base plate.

[0012] Furthermore, the two plates are equal in length, thickness, and height, with the top surfaces of the two plates aligned with the top surfaces of the two base plates, and the inner surfaces of the two plates aligned with the two end surfaces of the square groove.

[0013] Furthermore, the support structure is made using a one-piece casting process.

[0014] The beneficial effects of this utility model are as follows: The leaf spring bracket assembly provided in this application includes two brackets. The brackets form a first U-shaped slot through the base, side plate, and pressure plate. A second U-shaped slot is formed through the square groove at the bottom of the side plate and two bottom plates connected to the two sides of the square groove. The two brackets are respectively clamped onto the power axle through the second slot and welded and fixed, so that the two brackets are clamped on both sides of the leaf spring. The leaf spring is clamped in the first slot of the two brackets, fixing the middle part of the leaf spring to the power axle. The installation is convenient, and the leaf spring can be fixed in the structure. Even if it is loose, it will not cause safety hazards. It plays a very important role in the vibration damping structure of trucks with leaf springs. It also realizes the lightweight structure of the leaf spring bracket assembly, which has high safety, good stability, and is easy to use, and reduces resource consumption. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a three-dimensional schematic diagram of the bracket of this utility model.

[0017] Figure 3 This is a three-dimensional schematic diagram of the bracket of this utility model.

[0018] Figure 4 This is a three-dimensional schematic diagram of the bracket of this utility model. Detailed Implementation

[0019] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figure 1-4 As shown, this utility model provides a steel leaf spring bracket assembly, including two opposing brackets 10. The brackets 10 are integrally cast and are simple and easy to use. The bracket 10 includes a base 1, a side plate 2, and a pressure plate 3. The pressure plate 3 is parallel to the base 1. One end of the side plate 2 is perpendicularly connected to the base 1, and the other end of the side plate 2 is perpendicularly connected to the pressure plate 3, forming a U-shaped first slot 4 between the base 1, the side plate 2, and the pressure plate 3. A square slot 21 is provided at the bottom of the side plate 2. The base 1 includes two opposing base plates 11 and two opposing clamping plates 13. The two base plates 11 are respectively connected to the two sides of the square slot 21, forming a U-shaped second slot 5 between the two base plates 11, thereby clamping the bracket 10 onto the power bridge and welding it in place. The two clamping plates 13 are respectively perpendicularly connected to the inner sides of the two base plates 11. The bracket 10 is welded to the power bridge through the two clamping plates 13. By clamping the two opposing brackets 10 onto the two sides of the leaf spring, the leaf spring is clamped in the first slot 4 of the two brackets 10, and the middle part of the leaf spring is fixed to the power bridge.

[0021] Two threaded countersunk holes 12 are provided on the base plate 11. Bolts are threaded into the countersunk holes 12 to fix the steel leaf spring clamped in the first slot 4. The two clamping plates 13 are equal in length, thickness and height. The top surfaces of the two clamping plates 13 are aligned with the top surfaces of the two base plates 11 respectively, and the inner surfaces of the two clamping plates 13 are aligned with the two end surfaces of the square slot 21 respectively.

[0022] Side plate 2 has a trapezoidal structure. The long side of the trapezoidal side plate 2 is connected to the base 1, and the short side of the trapezoidal side plate 2 is connected to the pressure plate 3. The width of the pressure plate 3 gradually decreases towards the side plate 2, which can minimize the weight of the bracket 10 and facilitate bolt installation. A first weight-reducing groove 23 is formed on the side surface of the side plate 2 away from the first slot 4, and a second weight-reducing groove 32 is formed on the side surface of the pressure plate 3 away from the first slot 4. The first weight-reducing groove 23 and the second weight-reducing groove 32 are interconnected, further reducing the weight of the bracket 10.

[0023] A first wear-resistant block 22 is welded to the side surface of the side plate 2 near the first slot 4, and a second wear-resistant block 31 is welded to the side surface of the pressure plate 3 near the first slot 4. This reduces the wear of the leaf spring on the bracket 10 and extends the service life of the bracket 10 during the vibration damping and sliding of the leaf spring. The second wear-resistant block 31 is an arc-shaped protrusion with its axis perpendicular to the side plate 2. The arc-shaped surface of the second wear-resistant block 31 contacts the leaf spring, thereby reducing the resistance of the pressure plate 3 on the leaf spring during the vibration damping and sliding of the leaf spring.

[0024] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A leaf spring bracket assembly, comprising two opposing brackets (10), characterized in that, The bracket (10) includes: a base (1), a side plate (2), and a pressure plate (3). The pressure plate (3) is arranged parallel to the base (1). One end of the side plate (2) is perpendicularly connected to the base (1), and the other end of the side plate (2) is perpendicularly connected to the pressure plate (3) to form a first U-shaped slot (4) between the base (1), the side plate (2), and the pressure plate (3). A square groove (21) is provided at the bottom of the side plate (2). The base (1) includes two opposing base plates (11). The two base plates (11) are respectively connected to the two sides of the square groove (21) to form a second U-shaped slot (5) between the two base plates (11).

2. The support assembly according to claim 1, characterized in that, Two threaded countersunk holes (12) are provided on the base plate (11), and bolts are threadedly connected in the threaded countersunk holes (12).

3. The support assembly according to claim 1, characterized in that, The side plate (2) is a trapezoidal structure. The long side of the trapezoidal side plate (2) is connected to the base (1), and the short side of the trapezoidal side plate (2) is connected to the pressure plate (3). The width of the pressure plate (3) gradually decreases towards the side away from the side plate (2).

4. The support assembly according to claim 1, characterized in that, A first wear-resistant block (22) is welded to the side surface of the side plate (2) near the first slot (4), and a second wear-resistant block (31) is welded to the side surface of the pressure plate (3) near the first slot (4).

5. The support assembly according to claim 4, characterized in that, The second wear-resistant block (31) has an arc-shaped protrusion with its axis perpendicular to the side plate (2).

6. The support assembly according to claim 1, characterized in that, A first weight-reducing groove (23) is provided on the side surface of the side plate (2) away from the first slot (4), and a second weight-reducing groove (32) is provided on the side surface of the pressure plate (3) away from the first slot (4). The first weight-reducing groove (23) and the second weight-reducing groove (32) are connected to each other.

7. The support assembly according to claim 1, characterized in that, The base (1) also includes two opposing clamping plates (13), which are vertically connected to the inner side of the base plate (11).

8. The support assembly according to claim 1, characterized in that, The two card plates (13) are equal in length, thickness and height. The top surfaces of the two card plates (13) are aligned with the top surfaces of the two base plates (11) respectively. The inner surfaces of the two card plates (13) are aligned with the two end surfaces of the square groove (21) respectively.

9. The support assembly according to claim 1, characterized in that, The bracket (10) is made by one-piece casting.