Front steering knuckle

Abstract

The utility model discloses a front steering knuckle, which belongs to the technical field of automobile steering knuckles, and comprises a main body part, and a shock absorber mounting part, a control arm mounting part, a steering arm part and a brake caliper mounting part which are arranged on the peripheral side of the main body part, the first weight reduction groove is formed in the middle of the shock absorber installation part, the first reinforcing ribs are arranged on the two sides of the first weight reduction groove, and second reinforcing ribs are arranged on the back face of the shock absorber installation part in the radial direction of the main body part and arranged in the middle of the shock absorber installation part in the radial direction of the main body part. The first weight reduction groove is formed in the position, where stress is small, of the shock absorber installation part, and by reducing materials at the position and arranging corresponding reinforcing ribs, on the basis that strength and rigidity are guaranteed, the product structure is optimized, the overall weight of the front steering knuckle is reduced, and lightweight design is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile steering knuckles, and in particular relates to a front steering knuckle. Background Art

[0002] The front steering knuckle, also called the horn, is one of the main parts on the steering axle of the car. It can make the car run stably and transmit the driving direction sensitively. The function of the front steering knuckle is to transmit and bear the load of the front of the car, support and drive the front wheel to rotate around the kingpin to turn the car. When the car is driving, the front steering knuckle, as an important part of the suspension system, bears the force and torque brought by each control arm, brake caliper, and wheel hub bearing, and bears a high alternating load when the car is driving. Therefore, there are extremely strict requirements for the strength and stiffness of the front steering knuckle. At the same time, the front steering knuckle is "unsprung". In order to improve the strength and stiffness, the mass of the front steering knuckle is larger, resulting in an increase in the unsprung mass, which is not conducive to the vehicle's maneuverability and comfort.

[0003] With the booming development of new energy, reducing the weight of the front steering knuckle means reducing the weight of the entire vehicle, which is beneficial to the endurance of new energy vehicles. Therefore, in order to improve the vehicle's maneuverability, comfort and endurance, it is necessary to maximize lightweight design while ensuring strength and rigidity. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a front steering knuckle, optimize the structure of the front steering knuckle and reduce the weight of the front steering knuckle under the premise of ensuring the strength and rigidity of the front steering knuckle.

[0005] In order to solve the above technical problems, the technical solution of the utility model is:

[0006] A front steering knuckle comprises a main body, a shock absorber mounting part arranged on the periphery of the main body, a control arm mounting part, a steering arm part and a brake caliper mounting part, wherein a first weight reducing groove and a first reinforcing rib are arranged on the front side of the shock absorber mounting part along the radial direction of the main body, the first weight reducing groove is arranged in the middle part of the shock absorber mounting part, the first reinforcing rib is arranged on both sides of the first weight reducing groove, and a second reinforcing rib is arranged on the back side of the shock absorber mounting part along the radial direction of the main body, and the second reinforcing rib is arranged in the middle part of the shock absorber mounting part along the radial direction of the main body.

[0007] Furthermore, the main body is provided with a plurality of fixing through holes for assembling bolts, and the control arm mounting portion is provided with third reinforcing ribs on both sides close to the steering arm portion and the brake caliper mounting portion, respectively, and the two third reinforcing ribs are respectively located on the outer sides of two of the fixing through holes.

[0008] Furthermore, a second weight-reducing groove is provided on the back side of the control arm mounting portion along the radial direction of the main body portion, and the second weight-reducing groove is provided in the middle part of the control arm mounting portion.

[0009] Furthermore, the main body is composed of a first sleeve and a plurality of second sleeves located on the circumferential side of the first sleeve, the first sleeve and the second sleeve are connected by a rounded and smooth transition, the first sleeve is provided with an axial hole for installing a bearing, the second sleeve is provided with the fixing through hole, a mounting seat mating surface is formed between the axial hole on the front side of the main body and the fixing through hole, and a first avoidance groove is provided on the circumferential end face of the fixing through hole on the back side of the main body.

[0010] Furthermore, the shock absorber mounting portion is arranged at the upper part of the main body along the radial direction of the axial hole, and the left and right sides of the shock absorber mounting portion are shock absorber mounting surfaces. The shock absorber mounting surfaces are respectively provided with shock absorber mounting holes at the upper and lower ends of the second reinforcing rib.

[0011] Furthermore, the control arm mounting portion is arranged at the lower part of the main body along the radial direction of the axial hole, a control arm mounting hole is opened at the bottom of the control arm mounting portion, and a second avoidance groove is arranged on the circumferential end surface of the control arm mounting hole close to one side of the main body.

[0012] Furthermore, the steering arm portion is arranged on the left side of the main body portion along the radial direction of the axial hole, and a tie rod mounting seat is arranged at the left end of the steering arm portion. A tie rod mounting hole is opened on the tie rod mounting seat, and a third avoidance groove is arranged on the circumferential end surface of the tie rod mounting hole close to the control arm mounting portion.

[0013] Furthermore, the brake caliper mounting portion is arranged on the right side of the main body, and two brake caliper mounting portions are provided. The two brake caliper mounting portions are arranged on the outside of two of the fixing through holes, and a brake caliper mounting hole is opened on the brake caliper mounting portion. The peripheral side end surfaces of the brake caliper mounting hole on both the front and back sides are provided with fourth avoidance grooves.

[0014] Furthermore, an ABS mounting portion is provided between the shock absorber mounting portion and the steering arm portion, and an ABS mounting hole and an ABS fixing hole are provided on the ABS mounting portion.

[0015] Furthermore, the front sides of the shock absorber mounting portion, the control arm mounting portion and the steering arm portion are connected to the front side of the main body portion in a smooth transition, and the steering arm portion is bent toward the back side of the main body portion.

[0016] After adopting the above technical solution, the beneficial effects of the utility model are:

[0017] Since the front steering knuckle of the utility model includes a main body, a shock absorber mounting part arranged on the peripheral side of the main body, a control arm mounting part, a steering arm part and a brake caliper mounting part, a first weight reducing groove and a first reinforcing rib are arranged on the front side of the shock absorber mounting part along the radial direction of the main body, the first weight reducing groove is arranged in the middle part of the shock absorber mounting part, the first reinforcing rib is arranged on both sides of the first weight reducing groove, a second reinforcing rib is arranged on the back side of the shock absorber mounting part along the radial direction of the main body, the second reinforcing rib is arranged in the middle part of the shock absorber mounting part along the radial direction of the main body, and the first weight reducing groove is arranged at a position on the shock absorber mounting part where the force is relatively small. By reducing the material at this position and arranging corresponding reinforcing ribs, the product structure is optimized on the basis of ensuring the strength and rigidity, the overall weight of the front steering knuckle is reduced, and a lightweight design is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the front side of the front steering knuckle of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the back side of the front steering knuckle of the utility model;

[0020] Figure 3 yes Figure 1 Sectional view along line AA;

[0021] Figure 4 yes Figure 2 Sectional view along line BB;

[0022] Figure 5 It is a schematic diagram of the bottom structure of the steering arm;

[0023] Figure 6 It is a schematic diagram of the assembly of the front steering knuckle and surrounding components of the utility model;

[0024] In the figure, 1-front steering knuckle, 2-bearing mounting seat, 3-shock absorber, 4-control arm, 5-tie rod, 6-brake caliper, 10-main body, 101-first sleeve, 102-second sleeve, 103-shaft hole, 104-mounting seat matching surface, 105-fixing through hole, 106-first avoidance groove, 20-shock absorber mounting part, 201-shock absorber mounting surface, 202-shock absorber mounting hole, 203-first weight reduction groove, 204-first reinforcing rib, 205- Second reinforcing rib, 30-control arm mounting part, 301-control arm mounting hole, 302-second avoidance groove, 303-second weight reduction groove, 304-third reinforcing rib, 40-steering arm part, 401-tie rod mounting seat, 402-tie rod mounting hole, 403-third avoidance groove, 50-brake caliper mounting part, 501-brake caliper mounting hole, 502-fourth avoidance groove, 60-ABS mounting part, 601-ABS mounting hole, 602-ABS fixing hole. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the protection scope of the present invention.

[0026] In the description of this specification, it should be understood that the description of directions, such as up, down, front, back, left, right, etc., is based on the directions or positions shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Figure 1 The "front side" of the front steering knuckle 1 is shown. Figure 2 The "back", "left side" and "right side" of the front steering knuckle 1 are shown. Figure 1 Describe the directions shown.

[0027] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Unless otherwise clearly defined, the terms "set", "install", "connect" and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in this utility model in combination with the specific content of the technical solution.

[0028] like Figure 1 , Figure 2 and Figure 6 As shown together, a front steering knuckle comprises a main body 10, a shock absorber mounting portion 20, a control arm mounting portion 30, a steering arm portion 40 and a brake caliper mounting portion 50 arranged on the periphery of the main body 10. A bearing mounting seat 2 is mounted on the front of the main body 10, and an axial hole 103 for mounting a bearing is provided at the center of the main body 10. The shock absorber 3, the control arm 4, the tie rod 5 and the brake caliper 6 are respectively mounted on the back of the shock absorber mounting portion 20, the control arm mounting portion 30, the steering arm portion 40 and the brake caliper mounting portion 50.

[0029] The front steering knuckle 1 blank can be formed by integral casting of aluminum alloy. Using this material can greatly reduce the weight of the front steering knuckle 1 and increase the handling, comfort and acceleration performance of the car.

[0030] like Figure 1 , Figure 2 and Figure 3As shown together, the shock absorber mounting part 20 is arranged on the upper part of the main body 10 along the radial direction of the axial hole 103, and the front side of the shock absorber mounting part 20 is provided with a first weight reducing groove 203 and a first reinforcing rib 204 along the radial direction of the main body 10. The first weight reducing groove 203 is arranged in the middle part of the shock absorber mounting part 20, which is located at a position on the shock absorber mounting part 20 where the force is relatively small, thereby reducing materials and reducing weight.

[0031] Furthermore, the front side of the shock absorber mounting part 20 is provided with a first reinforcing rib 204 along the radial direction of the main body 10, and the first reinforcing rib 204 is provided on both sides of the first weight reduction groove 203. The back side of the shock absorber mounting part 20 is provided with a second reinforcing rib 205 along the radial direction of the main body 10, and the second reinforcing rib 205 is provided in the middle part of the shock absorber mounting part 20 along the radial direction of the main body 10. An "I"-shaped structure is formed, which is conducive to ensuring the strength and rigidity of the product.

[0032] like Figure 2 and Figure 6 As shown together, the left and right sides of the shock absorber mounting part 20 are shock absorber mounting surfaces 201, and the shock absorber mounting surfaces 201 are respectively provided with shock absorber mounting holes 202 at the upper and lower ends of the second reinforcing rib 205. The shock absorber mounting holes 202 are arranged horizontally in the figure, and the shock absorber 3 is fixed to the shock absorber mounting part 20 by two bolts passing through the shock absorber mounting holes 202. The front of the shock absorber mounting part 20 is connected to the front of the main body 10 by a smooth transition to prevent stress concentration.

[0033] like Figure 1 , Figure 2 and Figure 6 As shown together, the main body 10 is composed of a first sleeve 101 and a plurality of second sleeves 102 located around the first sleeve 101. The first sleeve 101 and the second sleeve 102 are connected by a rounded transition. In this embodiment, four second sleeves 102 are provided and are evenly arranged around the first sleeve 101. An axial hole 103 for mounting a bearing is provided in the first sleeve 101, and a fixing through hole 105 is provided in the second sleeve 102. The axial hole 103 and the fixing through hole 105 are arranged longitudinally in the figure. A mounting seat mating surface 104 is formed between the axial hole 103 on the front of the main body 10 and the fixing through hole 105. Bolts pass through the fixing through hole 105 to fix the bearing mounting seat 2 on the mounting seat mating surface 104.

[0034] Furthermore, a first avoidance groove 106 is provided on the peripheral end surface of the fixing through hole 105 on the back side of the main body 10 for accommodating the bolt gasket to prevent interference with the bolt gasket.

[0035] like Figure 2 , Figure 4 and Figure 6As shown together, the control arm mounting portion 30 is arranged at the lower portion of the main body 10 along the radial direction of the shaft hole 103, and a control arm mounting hole 301 is opened at the bottom of the control arm mounting portion 30. The control arm mounting hole 301 is arranged vertically in the figure, and the control arm 4 is installed on the back side of the control arm mounting portion 30 by a ball pin passing through the control arm mounting hole 301.

[0036] A second weight-reducing groove 303 is provided on the back side of the control arm mounting portion 30 along the radial direction of the main body portion 10. The second weight-reducing groove 303 is provided in the middle part of the control arm mounting portion 30. The second weight-reducing groove 303 is provided at a position on the back side of the control arm mounting portion 30 where the force is less. This can reduce materials and weight while ensuring structural strength, thereby achieving a lightweight design.

[0037] like Figure 1 and Figure 2 As shown together, the control arm mounting portion 30 is provided with third reinforcing ribs 304 on both sides close to the steering arm portion 40 and the brake caliper mounting portion 50, and the two third reinforcing ribs 304 are respectively located on the outside of two of the fixing through holes 105, where the outside of the fixing through hole 105 refers to the side of the fixing through hole 105 away from the shaft hole 103 in the radial direction of the shaft hole 103. Since the bolts for fixing the bearing mounting seat 2 pass through the fixing through hole 105, when the third reinforcing ribs 304 are located on one side of the fixing through hole 105, an optimal force transmission structure will be formed, which is beneficial to the strength and rigidity of the structure.

[0038] Furthermore, a second avoidance groove 302 is provided on the peripheral end surface of the control arm mounting hole 301 close to the main body 10 to prevent interference with the control arm 4. The control arm mounting portion 30 is connected to the front of the main body 10 in a smooth transition to prevent stress concentration.

[0039] like Figure 1 and Figure 6 As shown, the steering arm portion 40 is arranged on the left side of the main body portion 10 along the radial direction of the shaft hole 103, and a tie rod mounting seat 401 is arranged at the left end of the steering arm portion 40. A tie rod mounting hole 402 is opened on the tie rod mounting seat 401. The tie rod mounting hole 402 is arranged vertically in the figure, and the tie rod 5 is installed on the tie rod mounting seat 401 by a ball pin passing through the tie rod mounting hole 402.

[0040] like Figure 1 , Figure 2 and Figure 5 As shown in the figure, a third avoidance groove 403 is provided on the peripheral end surface of the tie rod mounting hole 402 near the control arm mounting portion 30, which is used to prevent the tie rod 5 from interfering with the steering arm portion 40. The steering arm portion 40 is bent toward the back of the main body 10 to avoid interference between the steering arm portion 40 and the bearing mounting seat 2. The front of the steering arm portion 40 is connected to the front of the main body 10 by a smooth transition to prevent stress concentration.

[0041] like Figure 1 , Figure 2 and Figure 6 As shown together, the brake caliper mounting part 50 is arranged on the right side of the main body 10, and two brake caliper mounting parts 50 are provided. The two brake caliper mounting parts 50 are arranged on the outside of two of the fixing through holes 105. A brake caliper mounting hole 501 is opened on the brake caliper mounting part 50, and the brake caliper mounting hole 501 is arranged longitudinally in the figure. The brake caliper 6 is installed on the back side of the brake caliper mounting part 50 by a ball pin passing through the brake caliper mounting hole 501.

[0042] Furthermore, fourth avoidance grooves 502 are provided on the peripheral side end surfaces of the brake caliper mounting hole 501 on both the front and rear sides for accommodating bolt washers, thereby preventing the bolt washers from interfering with the brake caliper mounting portion 50 .

[0043] like Figure 1 As shown, an ABS (antilock brake system) mounting portion 60 is provided between the shock absorber mounting portion 20 and the steering arm portion 40. An ABS mounting hole 601 and an ABS fixing hole 602 are provided on the ABS mounting portion 60. The ABS sensor is placed in the ABS mounting hole 601. Screws pass through the ABS fixing hole 602 to fix the ABS sensor to the ABS mounting portion 60.

[0044] The front steering knuckle of the utility model is provided with a first weight-reducing groove and a first reinforcing rib on the front side of the shock absorber mounting part, and a second reinforcing rib on the back side, wherein the first weight-reducing groove is provided at a position on the shock absorber mounting part where the force is relatively small, and an "I"-shaped structure is formed by reducing the material at this position and providing corresponding reinforcing ribs. On the basis of ensuring the strength and rigidity, the product structure is optimized, the overall weight of the front steering knuckle is reduced, and a lightweight design is achieved.

[0045] Although the specific implementation methods of the utility model are described above, those skilled in the art should understand that the described embodiments are only part of the implementation methods of the utility model, rather than all the implementation methods, which are only examples, and the protection scope of the utility model is defined by the claims. Those skilled in the art can make various changes or modifications to these implementation methods without departing from the principle and essence of the utility model and without any creative work, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A front steering knuckle, comprising a main body, a shock absorber mounting portion, a control arm mounting portion, a steering arm portion and a brake caliper mounting portion arranged on the periphery of the main body, characterized in that: The front side of the shock absorber mounting portion is provided with a first weight-reducing groove and a first reinforcing rib along the radial direction of the main body, the first weight-reducing groove is provided in the middle of the shock absorber mounting portion, the first reinforcing rib is provided on both sides of the first weight-reducing groove, the back side of the shock absorber mounting portion is provided with a second reinforcing rib along the radial direction of the main body, the second reinforcing rib is provided in the middle of the shock absorber mounting portion along the radial direction of the main body; A transverse reinforcing rib is arranged on the inner side of the first reinforcing rib, and the transverse reinforcing rib and the first reinforcing rib form an "H"-shaped structure. An end weight-reducing groove is opened at the end of the shock absorber mounting portion, and the end weight-reducing groove is communicated with the first weight-reducing groove.

2. The front steering knuckle according to claim 1, characterized in that: The main body is provided with a plurality of fixing through holes for assembling bolts, and the control arm mounting portion is provided with third reinforcing ribs on both sides close to the steering arm portion and the brake caliper mounting portion, respectively, and the two third reinforcing ribs are respectively located on the outer sides of two of the fixing through holes.

3. The front steering knuckle according to claim 1, characterized in that: A second weight-reducing groove is disposed on the back side of the control arm mounting portion along the radial direction of the main body portion, and the second weight-reducing groove is disposed in the middle portion of the control arm mounting portion.

4. The front steering knuckle according to claim 2, characterized in that: The main body is composed of a first sleeve and a plurality of second sleeves located on the circumferential side of the first sleeve. The first sleeve and the second sleeve are connected by a rounded and smooth transition. The first sleeve is provided with an axial hole for installing a bearing, and the second sleeve is provided with the fixing through hole. A mounting seat mating surface is formed between the axial hole on the front side of the main body and the fixing through hole, and a first avoidance groove is provided on the circumferential end face of the fixing through hole on the back side of the main body.

5. The front steering knuckle according to claim 4, characterized in that: The shock absorber mounting portion is arranged at the upper part of the main body along the radial direction of the axial hole, and the left and right sides of the shock absorber mounting portion are shock absorber mounting surfaces. The shock absorber mounting surfaces are respectively provided with shock absorber mounting holes at the upper and lower ends of the second reinforcing rib.

6. The front steering knuckle according to claim 4, characterized in that: The control arm mounting portion is arranged at the lower part of the main body along the radial direction of the shaft hole, a control arm mounting hole is opened at the bottom of the control arm mounting portion, and a second avoidance groove is arranged on the peripheral side end surface of the control arm mounting hole close to the main body.

7. The front steering knuckle according to claim 4, characterized in that: The steering arm portion is arranged on the left side of the main body portion along the radial direction of the axial hole, and a tie rod mounting seat is arranged at the left end of the steering arm portion. A tie rod mounting hole is opened on the tie rod mounting seat, and a third avoidance groove is arranged on the circumferential end surface of the tie rod mounting hole close to the control arm mounting portion.

8. The front steering knuckle according to claim 2, characterized in that: The brake caliper mounting part is arranged on the right side of the main body, and there are two brake caliper mounting parts, which are arranged on the outside of two of the fixing through holes. A brake caliper mounting hole is opened on the brake caliper mounting part, and fourth avoidance grooves are arranged on the peripheral side end surfaces of the brake caliper mounting holes on both the front and back sides.

9. The front steering knuckle according to claim 1, characterized in that: An ABS mounting portion is arranged between the shock absorber mounting portion and the steering arm portion, and an ABS mounting hole and an ABS fixing hole are provided on the ABS mounting portion.

10. The front steering knuckle according to any one of claims 1 to 9, characterized in that: The front faces of the shock absorber mounting portion, the control arm mounting portion and the steering arm portion are connected to the front face of the main body portion in a smooth transition, and the steering arm portion is bent toward the back face of the main body portion.

Images