Split knuckle structure with replaceable brake mounting plate

Abstract

The utility model discloses a split knuckle structure with replaceable brake mounting plate belongs to knuckle technical field, including knuckle, brake, mounting plate piece and mounting plate connecting bolt, and knuckle is provided with first installation interface, and first bolt hole is seted up on first installation interface, and mounting plate piece is correspondingly provided with second installation interface for sticking first installation interface, and first through -hole is seted up on second installation interface. The utility model discloses a brake mounting interface is designed as independent, replaceable mounting plate piece, has solved the problem of poor adaptability of integral type knuckle in prior art, and the problem of high replacement cost, has greatly improved the versatility of structure, and effectively reduced production spare and after -sales inventory pressure.

Description

Technical Field

[0001] This utility model relates to the field of steering knuckle technology, and in particular to a split steering knuckle structure with a replaceable brake mounting plate. Background Technology

[0002] The steering knuckle is a key component of a vehicle's steering system. It bears the vehicle's load and is responsible for turning the wheels in response to steering commands. At the same time, the steering knuckle is also an important mounting base for the braking system; the brakes must be securely mounted on the steering knuckle to ensure effective transmission of braking force.

[0003] In existing technical solutions, in order to ensure structural strength and connection reliability, the brake mounting interface is usually designed as an integral part of the steering knuckle body. That is, the flange or mounting hole seat used to install the brake is a fixed structure formed during the forging or casting of the steering knuckle. However, with the development of automotive platformization and modular production, especially in the commercial vehicle sector, OEMs need to adapt brakes from different manufacturers with different external dimensions or installation specifications according to customer needs or cost control.

[0004] In this context, the traditional one-piece steering knuckle structure has revealed serious shortcomings. Its fixed mounting interface results in extremely poor adaptability. Once a different model of brake needs to be replaced, a completely new steering knuckle must be redesigned and manufactured. This not only leads to high mold costs, but also increases the variety of steering knuckles under the same vehicle platform, bringing huge inventory pressure to production, stocking, and after-sales service.

[0005] Therefore, this utility model proposes a split steering knuckle structure with a replaceable brake mounting plate to overcome the shortcomings of the prior art. Utility Model Content

[0006] In the existing technology, the split steering knuckle structure with replaceable brake mounting plate has an integral fixed structure for the steering knuckle and brake mounting interface, which results in poor versatility when adapting to different brake models, high replacement costs, and increased production, inventory, and after-sales inventory pressure. The present invention aims to provide a split steering knuckle structure with replaceable brake mounting plate that has been structurally improved and can effectively solve the above problems.

[0007] This utility model provides a split steering knuckle structure with a replaceable brake mounting plate, including: a steering knuckle; and a brake; the structure also includes a mounting plate and mounting plate connecting bolts.

[0008] The steering knuckle has a first mounting interface with first bolt holes for fixing the mounting plate. The mounting plate has a second mounting interface that fits into the first mounting interface of the steering knuckle and has first through holes corresponding to the first bolt holes. Mounting plate connecting bolts pass through the first through holes and are threaded into the first bolt holes, thereby detachably fixing the mounting plate to the steering knuckle. In addition, the mounting plate also has a brake mounting interface, and the brake is detachably fixed to the brake mounting interface of the mounting plate.

[0009] Preferably, the steering knuckle is a casting, formed by casting process. Compared with the traditional forging process, it can significantly reduce mold opening costs and shorten the production cycle while ensuring the required structural strength of the steering knuckle, thereby reducing the overall manufacturing cost.

[0010] Preferably, the brake mounting interface is configured to adapt to the shape and size of the brake, and the mounting plate is set as a replaceable independent component to adapt to a variety of brakes of different shapes and sizes. This design gives the entire structure a high degree of flexibility. When the OEM needs to replace the brakes with those from different suppliers or of different specifications, there is no need to make any changes to the steering knuckle body. Only a matching mounting plate needs to be designed and replaced, which greatly improves the versatility of the product.

[0011] Preferably, the brake mounting interface of the mounting plate is provided with a second bolt hole; the structure also includes a brake connecting bolt, through which the brake is detachably fixed to the second bolt hole of the mounting plate. This clarifies the specific connection method between the brake and the mounting plate, and the detachable fixing is achieved through threaded connection, ensuring the reliability of the connection, and also facilitating the installation, maintenance and replacement of the brake.

[0012] Preferably, the brake is provided with a second through hole corresponding to the second bolt hole. The brake connecting bolt passes through the second through hole and is threaded into the second bolt hole. The structure details define the installation path of the brake connecting bolt, ensuring precise alignment and secure fastening between the brake body and the mounting plate.

[0013] Preferably, the mounting plate has a first countersunk hole for accommodating the head of the mounting plate connecting bolt, and a first through hole is set at the bottom of the first countersunk hole. This countersunk hole design allows the head of the mounting plate connecting bolt to be recessed below or at least flush with the surface of the mounting plate after tightening, avoiding the bolt head from protruding, making the brake mounting interface of the mounting plate flatter and facilitating the fit and installation of the brake.

[0014] Preferably, the second through hole of the brake is a second countersunk hole, in which the head of the brake connecting bolt is accommodated. This is consistent with the design purpose of the first countersunk hole. The second countersunk hole is used to accommodate the head of the brake connecting bolt, making the outer surface of the brake flat, reducing unnecessary protrusions, and optimizing the compactness of the overall structure.

[0015] Preferably, the steering knuckle, mounting plate, brake, and mounting plate connecting bolts are configured such that the braking force generated by the brake is sequentially transmitted to the steering knuckle via the mounting plate and mounting plate connecting bolts. This configuration clearly defines the transmission path of the braking force. The braking force is generated by the brake, passes through the intermediate component of the mounting plate, and is then reliably transmitted to the steering knuckle body via the fastener of the mounting plate connecting bolts, thus ensuring the functional reliability of the split structure under braking conditions.

[0016] This utility model has the following beneficial effects: 1. This utility model separates the brake mounting interface from the steering knuckle body and designs it as an independent mounting plate. The mounting plate is detachably connected to the steering knuckle by mounting plate connecting bolts. This solves the problem of insufficient compatibility of the existing one-piece steering knuckle due to its inability to adapt to brakes of different manufacturers or sizes, and the high cost of replacing the entire steering knuckle when replacing it. It achieves the effect of adapting to different brakes by only replacing the corresponding mounting plate, greatly improving versatility and reducing maintenance costs.

[0017] 2. This utility model solves the problem of high mold opening costs in the prior art for forged steering knuckles by optimizing the design of the steering knuckle body as a casting, and achieves the effect of significantly reducing the production mold opening cost while ensuring structural strength.

[0018] 3. This utility model, by adopting a replaceable design where the mounting plate and steering knuckle are separate, solves the problem in the prior art that multiple steering knuckle assemblies need to be prepared for the same platform vehicle due to the need to adapt to different brakes, resulting in a wide variety of types. This achieves the effect of reducing the types of steering knuckles and effectively alleviating the pressure of production preparation and after-sales inventory. Attached Figure Description

[0019] Figure 1 This is a structural diagram illustrating a split steering knuckle structure with a replaceable brake mounting plate proposed in this utility model. Figure 2 This is a schematic diagram of a split steering knuckle structure with a replaceable brake mounting plate proposed in this utility model.

[0020] Legend: 1. Steering knuckle; 2. Mounting plate; 3. Brake; 4. Mounting plate connecting bolts. Detailed Implementation

[0021] 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. Example

[0022] Please refer to Figures 1 to 2 This utility model provides a split steering knuckle structure with a replaceable brake mounting plate, which aims to solve the problems in the prior art where the steering knuckle and brake mounting interface are an integral structure, resulting in poor compatibility when adapting to different brakes, high replacement costs, and large inventory pressure.

[0023] like Figure 1 and Figure 2 As shown, a split steering knuckle structure with a replaceable brake mounting plate includes a steering knuckle 1 and a brake 3. The structure also includes a mounting plate 2 and mounting plate connecting bolts 4. The steering knuckle 1 serves as a component of the vehicle steering system, the brake 3 generates braking force, and the mounting plate 2 acts as an independent connecting component for detachably connecting the steering knuckle 1 and the brake 3. The mounting plate connecting bolts 4 are used to achieve a detachable fixed connection between the mounting plate 2 and the steering knuckle 1. The split design of the mounting plate 2 allows for replacement of different models of brake 3 only by replacing the compatible mounting plate 2, without needing to replace the main steering knuckle 1. The steering knuckle 1 has a first mounting interface with a first bolt hole for fixing the mounting plate 2. The mounting plate 2 has a second mounting interface for fitting the first mounting interface of the steering knuckle 1. The second mounting interface has a first through hole corresponding to the first bolt hole. The mounting plate connecting bolt 4 passes through the first through hole and is threaded into the first bolt hole. In this way, the mounting plate 2 is detachably fixed to the steering knuckle 1. The mounting plate 2 also has a brake mounting interface, and the brake 3 is detachably fixed to the brake mounting interface of the mounting plate 2.

[0024] Please refer to Figure 1 and Figure 2 The mounting plate 2 is the structure for realizing the split connection of this utility model. The mounting plate 2 is provided with a second mounting interface. The second mounting interface is used to fit the first mounting interface of the steering knuckle 1. A first through hole is opened on the second mounting interface. A first bolt hole corresponding to the first through hole is opened on the first mounting interface of the steering knuckle 1. In the assembled state, the mounting plate connecting bolts 4 pass through the first through hole of the mounting plate 2 and are threaded into the first bolt hole of the steering knuckle 1 in sequence, thereby detachably fixing the mounting plate 2 to the steering knuckle 1; the mounting plate 2 is also provided with a brake mounting interface, which is constructed to adapt to the external dimensions of the brake 3, and a second bolt hole is provided on the brake mounting interface. This embodiment also includes a brake connecting bolt. The brake 3 is provided with a second through hole corresponding to the second bolt hole. The brake connecting bolt passes through the second through hole of the brake 3 and is threaded into the second bolt hole of the mounting plate 2, thereby connecting the brake 3 to the mounting plate 2 in a detachable fixing manner. This split, detachable connection structure between the steering knuckle 1, mounting plate 2, and brake 3 via mounting plate connecting bolts 4 and brake connecting bolts ensures that when it is necessary to adapt to brake 3 of different shapes and sizes, only the corresponding mounting plate 2 needs to be replaced, which greatly improves the versatility and adaptability of the structure. To further optimize the installation structure, the mounting plate 2 is provided with a first countersunk hole for accommodating the head of the mounting plate connecting bolt 4, and a first through hole is provided at the bottom of the first countersunk hole; Accordingly, the second through hole of the brake 3 is preferably a second countersunk hole, and the head of the brake connecting bolt is accommodated in the second countersunk hole, making the connecting surface smoother. In this embodiment, the steering knuckle 1 is preferably a casting.

[0025] As a preferred embodiment, in order to reduce mold opening costs while ensuring strength, the steering knuckle 1 is a casting; As another preferred embodiment, in order to improve the versatility and adaptability of the structure, the brake mounting interface is constructed to adapt to the external dimensions of the brake 3, and the mounting plate 2 is set as a replaceable independent component to adapt to a variety of brakes 3 with different external dimensions. As another preferred embodiment, in order to prevent the head of the mounting plate connecting bolt 4 from protruding from the surface of the mounting plate 2, the mounting plate 2 is provided with a first countersunk hole for accommodating the head of the mounting plate connecting bolt 4, and a first through hole is provided at the bottom of the first countersunk hole. As another preferred embodiment, in order to prevent the head of the brake connecting bolt from protruding from the surface of the brake 3, the second through hole of the brake 3 is a second countersunk hole, and the head of the brake connecting bolt is accommodated in the second countersunk hole.

[0026] Working Principle: As the core component of the vehicle steering system, the steering knuckle 1 works in conjunction with the suspension system. After receiving steering commands, it drives the wheels to complete the steering action, ensuring the vehicle's steering and handling performance. The braking force generated by the brake 3 is transmitted to the steering knuckle 1 through the matching mounting plate 2 and then through the mounting plate connecting bolts 4. Finally, the steering knuckle 1 applies the braking force to the wheels to achieve vehicle braking. In response to the special requirements of commercial vehicle OEMs for the brake 3 and the differences in the external dimensions of brake 3 from different manufacturers, the original one-piece steering knuckle 1's brake 3 mounting interface is separated into an independent mounting plate 2. When it is necessary to replace the brake 3 of different manufacturers and models, only the corresponding mounting plate 2 needs to be matched, without replacing the steering knuckle 1, solving the problem of insufficient compatibility of the original one-piece steering knuckle 1. With the help of computer-aided engineering (CAE), the steering knuckle 1 is optimized by topology optimization. Under the premise of ensuring strength, it is optimized from a forging to a casting. Since the mold opening cost of casting is much lower than that of forging, the mold opening cost is greatly reduced. At the same time, the types of steering knuckle 1 on the same platform are reduced, alleviating the pressure of production preparation and after-sales service.

Claims

1. A split steering knuckle structure with a replaceable brake mounting plate, comprising: Steering knuckle (1); And the brake (3); The structure is characterized in that it further includes: an installation plate (2); And mounting plate connecting bolts (4); the steering knuckle (1) is provided with a first mounting interface, and the first mounting interface is provided with a first bolt hole for fixing the mounting plate (2); The mounting plate (2) is provided with a second mounting interface, which is used to fit the first mounting interface. The second mounting interface is provided with a first through hole corresponding to the first bolt hole. The mounting plate connecting bolts (4) pass through the first through hole in sequence and are threaded into the first bolt hole to detachably fix the mounting plate (2) to the steering knuckle (1). The mounting plate (2) is also provided with a brake mounting interface, and the brake (3) is connected to the brake mounting interface of the mounting plate (2) by a detachable fixing method.

2. The split steering knuckle structure with replaceable brake mounting plate according to claim 1, characterized in that, The steering knuckle (1) is a casting.

3. The split steering knuckle structure with replaceable brake mounting plate according to claim 1, characterized in that, The brake mounting interface is configured to adapt to the external dimensions of the brake (3), and the mounting plate (2) is configured as a replaceable independent component to adapt to a variety of brakes (3) with different external dimensions.

4. The split steering knuckle structure with replaceable brake mounting plate according to claim 1, characterized in that, The mounting plate (2) has a second bolt hole on the brake mounting interface; the structure also includes a brake connecting bolt, and the brake (3) is detachably fixed to the second bolt hole of the mounting plate (2) through the brake connecting bolt.

5. A split steering knuckle structure with a replaceable brake mounting plate according to claim 4, characterized in that, The brake (3) is provided with a second through hole corresponding to the second bolt hole, and the brake connecting bolt passes through the second through hole and is threaded to the second bolt hole.

6. The split steering knuckle structure with replaceable brake mounting plate according to claim 1, characterized in that, The mounting plate (2) has a first countersunk hole for accommodating the head of the mounting plate connecting bolt (4), and the first through hole is located at the bottom of the first countersunk hole.

7. The split steering knuckle structure with a replaceable brake mounting plate according to claim 5, characterized in that, The second through hole of the brake (3) is a second countersunk hole, and the head of the brake connecting bolt is accommodated in the second countersunk hole.

8. The split steering knuckle structure with replaceable brake mounting plate according to claim 1, characterized in that, The steering knuckle (1), the mounting plate (2), the brake (3) and the mounting plate connecting bolt (4) are configured such that the braking force generated by the brake (3) is transmitted to the steering knuckle (1) in sequence through the mounting plate (2) and the mounting plate connecting bolt (4).

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