CN210133180U

CN210133180U - Automobile steering knuckle

Info

Publication number: CN210133180U
Application number: CN201920779422.1U
Authority: CN
Inventors: 邓伏栋
Original assignee: Guangzhou Automobile Group Co Ltd
Current assignee: Guangzhou Automobile Group Co Ltd
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2020-03-10
Anticipated expiration: 2029-05-27

Abstract

The utility model relates to the field of automotive technology, a steering knuckle is disclosed, this steering knuckle includes: the steering knuckle comprises a steering knuckle main body, a shock absorber arm arranged at the top of the steering knuckle main body and a steering pull rod arm arranged at the rear side part of the steering knuckle main body, wherein a steering shaft hole is formed in the steering knuckle main body; the shock absorber arm is provided with a first wheel speed sensor mounting interface, and the steering pull rod arm is provided with a second wheel speed sensor mounting interface. The utility model has the advantages that: can install two fast sensors of wheel, the normal in-process of traveling, can gather the fast of wheel more accurately, if when one of them fast sensor of wheel became invalid, another fast sensor of wheel that does not become invalid still can accomplish the collection to the wheel speed, can avoid causing the trouble that can't gather the wheel speed because fast sensor of wheel became invalid.

Description

Automobile steering knuckle

Technical Field

The utility model relates to the field of automotive technology, especially, relate to an automobile steering knuckle.

Background

With the development of automobile intellectualization, the automatic driving automobile gradually becomes the development direction of the automobile industry in the future. The intelligent design of spare part in the car is more and more extensive, and traditional car knuckle all can only install single wheel speed sensor, to one of them wheel speed sensor back that breaks down, then has lost the real time monitoring to the speed of a motor vehicle to cause in the automatic driving of L3 level, because can't gather the wheel speed and the accident appears.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming prior art's not enough, providing a steering knuckle, can install two fast sensors of wheel, can avoid causing the unable trouble of gathering the wheel speed because a fast sensor of wheel became invalid.

In order to achieve the above object, the present invention provides an automobile steering knuckle, which includes: the steering knuckle comprises a steering knuckle main body, a shock absorber arm arranged at the top of the steering knuckle main body and a steering pull rod arm arranged at the rear side part of the steering knuckle main body, wherein a steering shaft hole is formed in the steering knuckle main body;

the shock absorber arm is provided with a first wheel speed sensor mounting interface, and the steering pull rod arm is provided with a second wheel speed sensor mounting interface.

Preferably, the first wheel speed sensor mounting interface and the second wheel speed sensor mounting interface each include a tapered bore and a threaded bore, and an inner diameter of the tapered bore decreases from a top portion to a bottom portion thereof.

Preferably, the opening of the tapered hole is provided with a chamfer and/or a fillet.

As a preferred scheme, the opening of the conical hole is provided with a chamfer and a fillet which are sequentially connected from top to bottom.

Preferably, the first wheel speed sensor mounting interface is arranged at a position where the shock absorber arm is connected with the knuckle main body; the second wheel speed sensor mounting interface is arranged on one side wall of the steering pull rod arm close to the shock absorber arm, and the second wheel speed sensor mounting interface is arranged at the position where the steering pull rod arm is connected with the steering knuckle main body;

the first wheel speed sensor mounting interface and the second wheel speed sensor mounting interface are both arranged towards the steering shaft hole.

Preferably, an included angle of less than 90 degrees is formed between the central axis of the first wheel speed sensor mounting interface and the central axis of the second wheel speed sensor mounting interface.

Preferably, the damper arm is provided with a damper mounting hole for accommodating an end of the damper.

Preferably, the shock absorber mounting hole has a notch, the shock absorber arm is provided with boss mounting portions at positions on both sides of the notch, and each boss mounting portion is provided with a fastening hole for inserting a fastening member.

As the preferred scheme, the front side portion of knuckle main part is provided with two calliper support installation departments, the calliper support installation department is last to have seted up the calliper mounting hole.

As the preferred scheme, the bottom of knuckle main part is equipped with down the swing arm installation department, the swing arm installation interface has been seted up down on the swing arm installation department down.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses automobile steering knuckle, seted up first fast sensor installation interface of wheel respectively on the shock absorber arm and seted up the fast sensor installation interface of second wheel on the steering linkage arm, through setting up the fast sensor installation interface of two wheels, can install two fast sensors of wheel, the normal in-process of traveling, can gather the fast wheel of wheel more accurately, if one of them fast sensor of wheel became invalid, another fast sensor of wheel that does not become invalid still can accomplish the collection to the wheel speed, thereby can avoid causing the unable trouble of gathering the wheel speed because fast sensor of wheel became invalid.

Drawings

FIG. 1 is a schematic structural diagram of an automobile steering knuckle according to an embodiment of the present invention;

FIG. 2 is a longitudinal cross-sectional view of FIG. 1;

FIG. 3 is a cross-sectional view of the second wheel speed sensor mounting interface of FIG. 1;

FIG. 4 is an enlarged, fragmentary view of the mounting interface of FIG. 3 with respect to a second wheel speed sensor;

fig. 5 is a schematic structural diagram of the steering knuckle of the present embodiment after being installed with a shock absorber and a wheel speed sensor.

In the figure, 10, the knuckle body; 11. a steering shaft hole; 12. a hub bearing mounting interface; 13. a dust cover mounting hole; 14. positioning holes; 20. a damper arm; 21. a first wheel speed sensor mounting interface; 22. a damper mounting hole; 221. a notch; 23. a boss mounting portion; 231. a fastening hole; 30. a steering tie rod arm; 31. a second wheel speed sensor mounting interface; 32. a diverter mounting interface; 201. a tapered hole; 201a, round corners; 201b, chamfering; 202. a threaded hole; 40. a caliper bracket mounting portion; 41. a caliper mounting hole; 50. a lower swing arm mounting portion; 51. a lower swing arm mounting interface;

100. a shock absorber; 200. a wheel speed sensor; 300. and fastening the bolt.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the present invention, it should be understood that the terms "first", "second", and the like are used to describe various information, but the information should not be limited to these terms, which are used only to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

In addition, it is also to be noted that the terms "upper", "lower", "top", "bottom", "inner", "outer", "front", "rear", and the like indicate an orientation or positional relationship based on the time when the automobile steering knuckle is assembled to the automobile body.

As shown in fig. 1 to 4, a steering knuckle for a vehicle according to a preferred embodiment of the present invention includes: the steering knuckle comprises a steering knuckle main body 10, a shock absorber arm 20 arranged at the top of the steering knuckle main body 10 and a steering pull rod arm 30 arranged at the rear side part of the steering knuckle main body 10, wherein a steering shaft hole 11 is formed in the steering knuckle main body 10;

the shock absorber arm 20 is provided with a first wheel speed sensor mounting interface 21, and the steering linkage arm 30 is provided with a second wheel speed sensor mounting interface 31.

Based on the above technical solution, the present embodiment provides an automobile steering knuckle, which is provided with two wheel speed sensor mounting interfaces, respectively being a first wheel speed sensor mounting interface 21 provided on the shock absorber arm 20 and a second wheel speed sensor mounting interface 31 provided on the steering link arm 30, and capable of mounting two wheel speed sensors 200, wherein a schematic structural diagram after mounting the wheel speed sensors 200 is shown in fig. 5; in the normal running process, the wheel speed information is jointly detected by the two wheel speed sensors 200, so that the measurement precision is higher; when one of the wheel speed sensors 200 fails, the other wheel speed sensor 200 which does not fail can still complete the collection of the wheel speed, so that the fault that the wheel speed cannot be collected due to the failure of the wheel speed sensor 200 can be avoided.

Specifically, in the normal driving process, signals acquired by the two wheel speed sensors 200 are fused together through an automobile Electronic Control Unit (ECU), and when the two wheel speed sensors 200 are in a normal mode, the fused wheel speed signals are more accurate; if one of the wheel speed sensors 200 fails, the system can also detect the failed wheel speed sensor 200 in time and give an alarm, and the other wheel speed sensor 200 which does not fail can still complete the collection of the wheel speed.

Specifically, in this embodiment, referring to fig. 2, 3 and 4 specifically, each of the first wheel speed sensor mounting interface 21 and the second wheel speed sensor mounting interface 31 includes a tapered hole 201 and a threaded hole 202, an inner diameter of the tapered hole 201 gradually decreases from a top to a bottom thereof, the tapered hole 201 is mainly used for positioning, and correspondingly, a tapered mounting portion matched with the tapered hole 201 needs to be provided on the wheel speed sensor 200, wherein the threaded hole 202 is used for inserting a bolt or other fastening member for fastening. The tapered hole 201 has a certain taper, so that the wheel speed sensor 200 with different heights can be adapted, and the universality of positioning and mounting of the wheel speed sensor 200 is improved; in addition, adopt bell mouth 201 cooperation location, can increase area of contact to the realization is to the accurate positioning of fast sensor 200 of wheel, when the fast sensor 200 of assembly wheel, only need insert along bell mouth 201 and accomplish the meshing and just fix a position the completion, and through the form of bell mouth 201, can increase the area of contact of fast sensor 200 of wheel and knuckle main part 10 of the fast sensor of wheel through the bolt after tightening down, improve life, reduce the influence of the vibration of knuckle main part 10 to fast sensor 200 of wheel.

In order to facilitate the wheel speed sensor 200 to be inserted into the tapered hole 201 without being collided, an opening of the tapered hole 201 is provided with a chamfer or a fillet or a combination of the chamfer and the fillet.

Specifically, referring to fig. 4, an opening of the tapered hole 201 is provided with a chamfer 201b and a fillet 201a which are sequentially connected from top to bottom; combine chamfer 201b and fillet 201a together, existing be favorable to fast sensor 200 of wheel to inject in the bell mouth 201 and not collided with, and make fast sensor 200 of wheel move the in-process steadily downwards through fillet 201a, can improve fast sensor 200 of wheel's life and guarantee measurement accuracy. Illustratively, the depth of the chamfer 201b is 1 mm, and the depth of the fillet 201a is 2 mm.

Further, in this embodiment, in order to facilitate reasonable arrangement of the components on the knuckle main body 10 and enable detection of the wheel speed, the first wheel speed sensor mounting interface 21 is provided at a position where the damper arm 20 is connected to the knuckle main body 10; the second wheel speed sensor mounting interface 31 is disposed on a sidewall of the tie rod arm 30 close to the shock absorber arm 20, and the second wheel speed sensor mounting interface 31 is disposed at a position where the tie rod arm 30 is connected to the knuckle body 10; the first wheel speed sensor mounting interface 21 and the second wheel speed sensor mounting interface 31 are both opened toward the steering shaft hole 11.

Likewise, in order to accurately detect the wheel speed of the wheel, the central axis of the first wheel speed sensor mounting interface 21 and the central axis of the second wheel speed sensor mounting interface 31 form an included angle smaller than 90 °.

Preferably, as shown in fig. 1 and 2, the damper arm 20 is provided with a damper mounting hole 22 for receiving an end of the damper 100; referring to fig. 5, it can be seen that the bottom end of the shock absorber 100 is in interference fit with the shock absorber mounting hole 22, the knuckle body 10 is connected with the shock absorber 100 in a tightly-holding manner, compared with the conventional tightly-holding connection, the mounting space on the shock absorber arm 20 is larger, and the tightly-holding connection can eliminate the problem of larger difference between camber angles of left and right wheels caused by the assembling and tightening directions, thereby improving the camber robustness of the suspension, improving the straight-line driving ability, and effectively improving the shock absorption performance of the automobile knuckle.

In the present embodiment, for achieving fast and accurate positioning during the assembling process of the shock absorber 100 and simplifying the assembling process, a positioning boss is disposed at the bottom of the shock absorber mounting hole 22.

In this embodiment, in order to further ensure stable installation of the shock absorber 100 and simplify assembly, the shock absorber mounting hole 22 has a notch 221, the notch 221 is used for properly opening the shock absorber mounting hole 22 when the shock absorber 100 is inserted, the shock absorber arm 20 is provided with boss mounting portions 23 at positions on both sides of the notch 221, each boss mounting portion 23 is provided with fastening holes 231 for inserting fastening members, and when the shock absorber 100 is accommodated in the shock absorber mounting hole 22, fastening connection is performed by using fastening members; as can be seen by way of example from fig. 5, in the present embodiment, the fastening bolt 300 is screwed into the fastening hole 231 for fastening.

In this embodiment, the tie rod arm 30 is provided with a steering gear mounting interface 32 for mounting a steering gear.

In this embodiment, two caliper bracket mounting portions 40 are disposed on a front side portion of the knuckle body 10, and a caliper mounting hole 41 is formed in the caliper bracket mounting portion 40 for mounting a caliper bracket.

Further, in the steering knuckle of this embodiment, the bottom of the knuckle main body 10 is provided with a lower swing arm mounting portion 50, and a lower swing arm mounting interface 51 is provided on the lower swing arm mounting portion 50, so as to mount a lower swing arm. Illustratively, the damper arm 20 and the lower swing arm mounting portion 50 both extend inward, and a central axis of the lower swing arm mounting interface 51 forms an included angle with a central axis of the damper mounting hole 22.

Illustratively, a plurality of hub bearing mounting interfaces 12 are arranged on the steering knuckle main body 10 at intervals along the circumferential direction of the steering shaft hole 11.

In this embodiment, for example, the knuckle body 10 is further provided with a plurality of dust cover mounting holes 13, and the damper arm 20 or the steering link arm 30 may also be provided with the dust cover mounting holes 13; in addition, in order to facilitate the clamping during machining, the knuckle body 10 is further provided with a positioning hole 14, and similarly, the damper arm 20 or the tie rod arm 30 may be provided with a positioning hole 14.

For example, the automobile steering knuckle in the embodiment is integrally cast, and each mounting interface and mounting hole are machined on the basis of a cast blank through machining.

To sum up, the embodiment of the present invention provides an automobile steering knuckle, which is provided with two wheel speed sensor mounting interfaces, namely a first wheel speed sensor mounting interface arranged on a shock absorber arm and a second wheel speed sensor mounting interface arranged on a steering pull rod arm, and can be provided with two wheel speed sensors; when the vehicle runs normally, the wheel speed information is detected by the two wheel speed sensors together, so that the measurement precision is higher; in addition, if one of the wheel speed sensors fails, the other wheel speed sensor which does not fail can still complete the collection of the wheel speed, so that the fault that the wheel speed cannot be collected due to the failure of the wheel speed sensor can be avoided.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. An automobile steering knuckle, comprising: the steering knuckle comprises a steering knuckle main body, a shock absorber arm arranged at the top of the steering knuckle main body and a steering pull rod arm arranged at the rear side part of the steering knuckle main body, wherein a steering shaft hole is formed in the steering knuckle main body;

2. The vehicle steering knuckle of claim 1, wherein the first wheel speed sensor mounting interface and the second wheel speed sensor interface each comprise a tapered bore and a threaded bore, the tapered bore having an inner diameter that decreases from a top portion to a bottom portion thereof.

3. The knuckle according to claim 2, wherein the opening of the tapered hole is chamfered and/or rounded.

4. The automobile steering knuckle according to claim 3, wherein the opening of the tapered hole is provided with a chamfer and a fillet which are sequentially connected from top to bottom.

5. The vehicle steering knuckle of claim 1, wherein said first wheel speed sensor mounting interface is provided at a location where said shock absorber arm is connected to said knuckle body; the second wheel speed sensor mounting interface is arranged on one side wall of the steering pull rod arm close to the shock absorber arm, and the second wheel speed sensor mounting interface is arranged at the position where the steering pull rod arm is connected with the steering knuckle main body;

6. The vehicle steering knuckle of claim 1, wherein a center axis of said first wheel speed sensor mounting interface is at an angle of less than 90 ° with respect to a center axis of said second wheel speed sensor mounting interface.

7. The automobile steering knuckle according to any one of claims 1 to 6, wherein the damper arm is provided with a damper mounting hole for receiving an end portion of a damper.

8. The knuckle according to claim 7, wherein the shock absorber mounting hole has a notch, the shock absorber arm has boss mounting portions at positions on both sides of the notch, and each of the boss mounting portions has a fastening hole for inserting a fastener.

9. The knuckle according to claim 1, wherein the knuckle body has two caliper bracket mounting portions provided at a front side portion thereof, the caliper bracket mounting portions having caliper mounting holes formed therein.

10. The automobile steering knuckle according to claim 1, wherein a lower swing arm mounting part is arranged at the bottom of the steering knuckle main body, and a lower swing arm mounting interface is arranged on the lower swing arm mounting part.