An integrated automobile steering gear housing

Abstract

The utility model relates to an integrated automobile steering gear housing belongs to the automobile steering gear technical field. The shell is constituted by the auxiliary frame and the center sleeve, the auxiliary frame is integrally formed with the center sleeve, and the auxiliary frame on the both sides of the one end head of the center sleeve is respectively provided with the support cylinder A, the auxiliary frame on the both sides of the other end head of the center sleeve is respectively provided with the support cylinder B. The shell fixes the center sleeve on the auxiliary frame directly, omits the connecting piece, can effectively reduce the total weight of the center sleeve and the auxiliary frame, the reinforcing rib on the center sleeve is fused with the original reinforcing rib plate on the auxiliary frame simultaneously, can further reduce the weight under the premise of guaranteeing the rigidity and the safety of the center sleeve and the auxiliary frame, thereby realizes the weight reduction of the automobile, realizes the light weight and reduces the oil consumption. Solve the problem that the weight between the existing automobile steering gear shell and the auxiliary frame is big, leads to the heavy automobile, the high oil consumption.

Description

Technical Field

[0001] This utility model relates to an integrated automotive steering gear housing, belonging to the field of automotive steering gear technology. Background Technology

[0002] For safety reasons, automobiles require high rigidity and therefore extensively use steel or aluminum alloys in their bodies. This heavy use of alloys results in greater vehicle weight, leading to higher fuel consumption. As the automotive industry evolves, demands for vehicle performance increase, with higher expectations for fuel efficiency per 100 kilometers. Lightweight design and energy saving have become crucial evaluation indicators. The steering gear, a key component, directly impacts vehicle handling. Existing steering gears consist of a housing, gear shaft, and rack. The housing has multiple bolt holes, which, along with fixing bolts, secure the housing to the subframe at the front of the vehicle chassis. The bolts connecting the steering gear housing to the subframe, as well as the material around the bolt holes, contribute to the counterweight, increasing the overall vehicle weight. Using lightweight materials (such as plastics) results in insufficient rigidity and reduced safety. Therefore, it is necessary to design an integrated automotive steering gear housing to address these issues. Summary of the Invention

[0003] The purpose of this invention is to provide an integrated automotive steering gear housing that can effectively reduce vehicle weight and thus reduce fuel consumption while ensuring rigidity and safety.

[0004] The technical solution of this utility model is: An integrated automotive steering gear housing, comprising a subframe and a center sleeve, characterized in that: the subframe and the center sleeve are integrally cast from aluminum alloy; support cylinders A are respectively provided on the subframe on both sides of one end of the center sleeve; and support cylinders B are respectively provided on the subframe on both sides of the other end of the center sleeve.

[0005] The central sleeve between the support cylinders A is provided with a longitudinal mounting countersunk hole, and the central sleeve above the longitudinal mounting countersunk hole is provided with a vertical mounting countersunk hole. The vertical mounting countersunk hole, the longitudinal mounting countersunk hole and the central hole of the central sleeve are interconnected.

[0006] A cantilever is provided on the subframe on one side of the vertical mounting countersunk hole. The cantilever has a suspension mounting hole, and the cantilever around the bottom port of the suspension mounting hole is planar.

[0007] Multiple reinforcing ribs are provided on both sides of the central sleeve between it and the subframe.

[0008] The beneficial effects of this utility model are as follows: This integrated automotive steering gear housing integrally casts the center sleeve (i.e., the original steering gear housing) and the subframe into an aluminum alloy formwork. This allows the center sleeve to be directly fixed to the subframe, eliminating the need for connecting components (such as bolt holes and fixing bolts) between the center sleeve and the subframe, effectively reducing the overall weight of the center sleeve and subframe. Simultaneously, it integrates the circumferential and axial reinforcing ribs on the center sleeve with the existing reinforcing ribs on the subframe, further reducing the total number of reinforcing ribs and ribs on both the subframe and center sleeve. This further reduces weight while maintaining the rigidity and safety of the center sleeve and subframe, thus achieving vehicle weight reduction, lightweighting, and reduced fuel consumption. It solves the problem of excessive weight between the existing automotive steering gear housing and subframe, which leads to heavy vehicles and high fuel consumption. Attached Figure Description

[0009] Figure 1 This is an isometric schematic diagram of this utility model; Figure 2 This is a top view of the present invention.

[0010] In the diagram: 1. Subframe, 2. Center sleeve, 3. Support tube A, 4. Support tube B, 5. Longitudinal mounting countersunk hole, 6. Vertical mounting countersunk hole, 7. Cantilever, 8. Suspension mounting hole, 9. Reinforcing rib. Detailed Implementation

[0011] This integrated automotive steering gear housing consists of a subframe 1 and a center sleeve 2. The subframe 1 and center sleeve 2 are integrally cast from aluminum alloy. By co-casting the center sleeve 2 with the subframe 1, the center sleeve 2 can be directly fixed to the subframe 1, thus eliminating the need for connecting parts between the center sleeve 2 and the subframe 1, such as fixing bolts, bolt holes, and the material around the bolt holes. Furthermore, by replacing the existing iron subframe with aluminum alloy casting, the weight of aluminum alloy is further reduced compared to iron, effectively reducing the total weight of the subframe 1 and center sleeve 2, thus reducing the vehicle's weight, achieving lightweighting, and reducing fuel consumption. Support cylinders A3 are respectively installed on both sides of the subframe 1 at one end of the center sleeve 2, and support cylinders B4 are respectively installed on both sides of the subframe 1 at the other end of the center sleeve 2. The function of support cylinders A3, in conjunction with support cylinders B4, is to fix the subframe 1 to the vehicle chassis, thereby fixing the center sleeve 2 to the vehicle chassis, and thus securing the automotive steering gear.

[0012] A longitudinal mounting countersunk hole 5 is provided on the center sleeve 2 between the support cylinders A3. Above the longitudinal mounting countersunk hole 5, a vertical mounting countersunk hole 6 is provided on the center sleeve 2. The vertical mounting countersunk hole 6, the longitudinal mounting countersunk hole 5, and the center hole of the center sleeve 2 are interconnected. The function of the vertical mounting countersunk hole 6 is to install the steering gear shaft through the vertical mounting countersunk hole 6, enabling the gear shaft to drive the rack installed in the center hole of the center sleeve 2. The function of the longitudinal mounting countersunk hole 5 is to install the steering gear adjusting plug through the longitudinal mounting countersunk hole 5. The adjusting plug, in conjunction with a spring, presses the rack against the gear shaft, maintaining the meshing of the rack and gear shaft, ensuring that the gear shaft can drive the rack.

[0013] A cantilever 7 is installed on the subframe 1 on one side of the vertical mounting hole 6. The cantilever 7 has suspension mounting holes 8, and the cantilever 7 is planar around the bottom port of the suspension mounting holes 8. The function of the cantilever 7 is to install the car suspension through the suspension mounting holes 8, and to support the suspension with the bottom of the planar cantilever 7 as the force point. This allows the weight of the vehicle to be applied to the wheels in sequence through the chassis, subframe 1, cantilever 7, and suspension, thereby supporting the entire car body.

[0014] Multiple reinforcing ribs 9 are installed on both sides of the center sleeve 2 between it and the subframe 1. These ribs enhance the structural strength of the center sleeve 2 and the subframe 1, ensuring their rigidity and thus their safety, making them less susceptible to structural damage. Simultaneously, the original subframe reinforcing ribs are integrated with the original center sleeve reinforcing ribs, further reducing the overall weight of the subframe 1 and center sleeve 2 compared to the existing separately installed subframe and center sleeve, thereby reducing the vehicle's weight, achieving lightweighting, and lowering fuel consumption.

[0015] For comparison, the existing subframe and steering gear housing, as well as the housing itself, were weighed to visually illustrate the weight reduction (see table below).

[0016] Weight data analysis shows that integrated steering systems can reduce weight by 46%, effectively lowering overall vehicle weight, reducing energy consumption, and significantly improving vehicle performance and fuel economy. During the assembly of this integrated automotive steering gear housing, the gear shaft is installed in the vertical mounting countersunk hole 6 of the center sleeve 2 via a bearing. After the gear shaft is installed, the rack is installed in the center hole of the center sleeve 2 via a bushing. After the rack is installed in place, an adjusting plug, spring, and support seat are installed in the longitudinal mounting countersunk hole to press the rack onto the gear shaft, making the rack mesh with the gear shaft. After the adjusting plug is installed, ball joint rods are connected to both ends of the rack. The subframe 1 is placed on the chassis, and the round holes of the support cylinders A3 and B4 of the subframe 1 are aligned with the bolt holes on the chassis. Fixing bolts are passed through the bolt holes of the support cylinders A3 or B4 and the chassis in sequence to fix the subframe 1 to the chassis, and at the same time, the steering gear is fixed. After the subframe 1 is fixed, the suspension is installed on the cantilever 1.

[0017] This integrated automotive steering gear housing is formed by integrally casting the center sleeve and subframe in aluminum alloy. This allows the center sleeve to be directly fixed to the subframe, eliminating the need for connecting components (such as bolt holes and fixing bolts) between the center sleeve and subframe, effectively reducing the overall weight of the center sleeve and subframe. Simultaneously, the circumferential and axial reinforcing ribs on the center sleeve are integrated with the existing reinforcing ribs on the subframe, further reducing weight while maintaining the rigidity and safety of the center sleeve and subframe. This achieves weight reduction in the vehicle, resulting in lightweight construction and lower fuel consumption. It solves the problem of excessive weight between the existing automotive steering gear housing and subframe, which leads to heavy vehicles and high fuel consumption.

Claims

1. An integrated automotive steering gear housing, comprising a subframe (1) and a center sleeve (2), characterized in that: The subframe (1) and the center sleeve (2) are integrally cast from aluminum alloy. Support cylinders A (3) are respectively installed on the subframes (1) on both sides of one end of the center sleeve (2), and support cylinders B (4) are respectively installed on the subframes (1) on both sides of the other end of the center sleeve (2).

2. The integrated automotive steering gear housing according to claim 1, characterized in that: The center sleeve (2) between the support cylinders A (3) is provided with a longitudinal mounting countersunk hole (5), and the center sleeve (2) above the longitudinal mounting countersunk hole (5) is provided with a vertical mounting countersunk hole (6). The vertical mounting countersunk hole (6), the longitudinal mounting countersunk hole (5) and the center hole of the center sleeve (2) are interconnected.

3. An integrated automotive steering gear housing according to claim 2, characterized in that: A cantilever (7) is provided on the subframe (1) on one side of the vertical mounting countersunk hole (6), and a suspension mounting hole (8) is provided on the cantilever (7). The cantilever (7) around the bottom port of the suspension mounting hole (8) is planar.

4. An integrated automotive steering gear housing according to claim 1, characterized in that: Multiple reinforcing ribs (9) are provided between the two sides of the central sleeve (2) and the subframe (1).

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