Macpherson type front steering knuckle with extending steering rod structure

Abstract

The utility model relates to a Macpherson type front steering knuckle with an extending steering rod structure, which comprises a front steering knuckle body mounted on an automobile hub, and a hub bearing mounting hole for mounting a hub bearing is formed in the middle of the front steering knuckle body. A hub bearing mounting hole is formed in the front steering knuckle body, a plurality of bearing bolt holes are distributed in the front steering knuckle body around the hub bearing mounting hole, a steering pull rod mounting hole is formed in one side of the front steering knuckle body, an extending steering rod extending outwards is arranged on the outer side of the steering pull rod mounting hole, and a mechanical plane is arranged at the free end of the extending steering rod. The hub is firstly in contact with the machining plane of the free end of the extending steering rod, the direction of the hub force is changed, the control arm is timely separated from the connector, and the effect of wheel loss and life conservation is achieved. According to the utility model, a section of extended extension steering rod structure is designed at the steering pull rod joint of the front steering knuckle, so that wheels are prevented from invading into a cab to hurt a driver, and a ball head of the steering pull rod can be prevented from falling off.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile chassis parts, in particular to a front knuckle of McPherson type with extended steering rod structure. BACKGROUND

[0002] The front knuckle is one of the important parts of the automobile suspension, which connects the control arm assembly, installs the wheel hub bearing for the wheel, connects the wheel and the vehicle body, and transmits and bears the automobile load. However, after the vehicle collides, the wheel as a part of the vehicle is pushed into the driver's cabin by the front barrier, directly causing the deformation of the driver's cabin, resulting in the impact and extrusion on the driver's legs, feet and trunk, and causing harm to the driver. Therefore, when designing the front knuckle, the wheel intrusion into the driver's cabin during the collision should be considered, which may cause harm to the driver. Therefore, the front knuckle not only needs to meet the structural performance indexes such as strength, fatigue durability, rigidity and modal, but also needs to ensure that the probability of the wheel intrusion into the driver's cabin during the small deviation collision is reduced. SUMMARY

[0003] The utility model solves the technical problem to provide a front knuckle of McPherson type with extended steering rod structure, the steering drag link connection of the front knuckle is designed with a section of extended extension steering rod structure, when colliding, the wheel hub contacts the extension steering rod first, resulting in the change of the force direction, and the control arm is timely detached from the interface to achieve the effect of "losing wheel to save life".

[0004] The utility model adopts the technical scheme that provides a front knuckle of McPherson type with extended steering rod structure, which comprises a front knuckle body installed on the automobile wheel hub, a wheel hub bearing mounting hole for mounting the wheel hub bearing is formed in the middle of the front knuckle body, a plurality of bearing bolt holes are distributed around the wheel hub bearing mounting hole on the front knuckle body, a steering drag link mounting hole is formed on one side of the front knuckle body, and an extension steering rod extending outward is arranged outside the steering drag link mounting hole. The free end of the extension steering rod is provided with a machined flat surface. When the vehicle collides, the wheel hub contacts the machined flat surface of the free end of the extension steering rod first, changes the direction of the wheel hub force, and makes the control arm timely detached from the interface to achieve the effect of "losing wheel to save life".

[0005] As a supplement to the technical scheme of the utility model, the length and width dimensions of the machined flat surface are both between 15mm-20mm.

[0006] As a supplement to the technical scheme of the utility model, the machined flat surface is in rectangular shape, and the four corners of the machined flat surface are all chamfered.

[0007] As a supplement to the technical scheme of the utility model, the spacing between the machining plane and the hub is 15mm after the front steering knuckle is installed.

[0008] As a supplement to the technical scheme of the utility model, at least one stress node column is arranged around the extension steering rod.

[0009] As a supplement to the technical scheme of the utility model, a drainage hole is formed at the lowest position below the hub bearing mounting hole, which can quickly drain the accumulated water and effectively prevent the pollutants such as mud and sewage on the outside of the wheel from easily invading the inside of the wheel.

[0010] As a supplement to the technical scheme of the utility model, a plurality of noise reduction grooves are arranged around the hub bearing mounting hole at the lower end surface of the front steering knuckle body, and the noise reduction grooves are in the shape of a circular arc. The noise reduction grooves can effectively reduce the steering abnormal noise caused by the sliding of the steel bearing and the steering knuckle mating surface.

[0011] As a supplement to the technical scheme of the utility model, three mudguards mounting holes are arranged on the bottom surface of the front steering knuckle body.

[0012] As a supplement to the technical scheme of the utility model, a wheel speed sensor mounting hole is formed on one side of the front steering knuckle body at the hub bearing mounting hole.

[0013] As a supplement to the technical scheme of the utility model, two brake caliper mounting holes are formed on the left side of the front steering knuckle body, and a first lower control arm mounting hole and a second lower control arm mounting hole are formed on the front side of the front steering knuckle body. A shock absorber sleeve is mounted on the rear side of the upper end of the front steering knuckle body, and a slit-shaped opening in communication with the inner hole and two mounting lugs arranged on both sides of the slit-shaped opening are arranged on the upper end of the shock absorber sleeve.

[0014] Advantages: the utility model relates to a front steering knuckle of a macpherson type with an extension steering rod structure, the front steering knuckle is provided with an extended extension steering rod structure, the existence of the extension steering rod can prevent the tires from invading the driver's compartment during the collision of the automobile, causing harm to the driver, and the overall structure also enhances the strength of the front steering knuckle of the automobile, so that the strength, rigidity and durability can meet the requirements of the front steering knuckle of the automobile and ensure the safety of the driver, and the extension steering rod can also prevent the ball head of the steering drag link from falling off; at least one stress node column is arranged around the extension steering rod, the stress node column increases the anti-deformation ability and structural strength of the extension steering rod; a drainage hole is formed at the lowest position below the hub bearing mounting hole, which can quickly drain the accumulated water and effectively prevent the pollutants such as mud and sewage on the outside of the wheel from easily invading the inside of the wheel; a shock absorber sleeve structure is also designed, which greatly simplifies the installation of the shock absorber. Attached Figure Description

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

[0016] Fig. 2 These are structural schematic diagrams of this utility model from different angles.

[0017] Illustrations: 1. Front steering knuckle body; 2. Wheel hub bearing mounting hole; 3. Bearing bolt hole; 4. Brake caliper mounting hole; 5. Lower control arm mounting hole (number one); 6. Lower control arm mounting hole (number two); 7. Steering tie rod mounting hole; 8. Extended steering rod link; 9. Shock absorber mounting hole; 10. Shock absorber bolt mounting hole; 11. Wheel speed sensor mounting hole; 12. Mudguard mounting hole; 13. Drain hole; 14. Noise reduction groove; 15. Machining surface; 16. Stress joint column; 17. Slit. Detailed Implementation

[0018] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0019] The embodiments of this utility model relate to a MacPherson type front steering knuckle with an extended steering rod structure, such as Figs. 1-2 As shown, the device includes a front steering knuckle body 1 mounted on a car wheel hub. The front steering knuckle body 1 has a wheel hub bearing mounting hole 2 in its center for mounting a wheel hub bearing. Four bearing bolt holes 3 are distributed around the wheel hub bearing mounting hole 2 on the front steering knuckle body 1. The wheel hub bearing is mounted on the car wheel hub via the bearing bolt holes 3. A steering tie rod mounting hole 7 is provided on one side of the front steering knuckle body 1. An outwardly extending steering rod 8 is provided outside the steering tie rod mounting hole 7. The steering tie rod mounting hole 7 is used to assemble the steering tie rod. The free end of the extended steering rod 8 has a machined surface 15 located 15mm away from the wheel hub and with an area not exceeding 20×20mm. In the event of a collision, the outer rim of the wheel hub (i.e., the wheel rim) contacts the machined surface 15 at the free end of the extended steering rod 8 first, changing the direction of the wheel hub force. This allows the control arm to disengage from the interface in time, achieving a "wheel-drop for safety" effect and preventing the wheel from intruding into the driver's cab and causing injury to the driver. The extended steering rod 8 also prevents the ball joint of the steering tie rod from detaching.

[0020] As an illustration of the machine plane 15, the length and width dimensions of the machine plane 15 are both between 15mm-20mm; the machine plane 15 is rectangular in shape, and the four corners of the machine plane 15 are all rounded, which is only a preferred solution of the machine plane 15, but is not limited to this shape, and can also be similar to a circular shape, an oval shape, a polygonal shape, etc.; after the front knuckle is installed, the spacing between the machine plane 15 and the hub is 15mm.

[0021] As a preferred solution of the extension steering rod 8, at least one stress node column 16 is provided around the extension steering rod 8, and the stress node column 16 is provided to increase the deformation resistance and structural strength of the extension steering rod 8.

[0022] As a preferred solution, a drain hole 13 is provided at the lowest point below the hub bearing mounting hole 2, which can quickly drain water and effectively prevent contaminants such as mud and sewage on the outside of the wheel from easily entering the inside of the wheel.

[0023] As a preferred solution of the front knuckle body 1, a plurality of noise reduction grooves 14 are provided around the hub bearing mounting hole 2 at the lower end surface of the front knuckle body 1, and the noise reduction grooves 14 are in the shape of a circular arc, which can effectively reduce the steering abnormal noise caused by the sliding of the steel bearing and the knuckle mating surface.

[0024] The bottom surface of the front knuckle body 1 is provided with three mudguard mounting holes 12, and the three mudguard mounting holes 12 are connected with the mudguard; a wheel speed sensor mounting hole 11 is provided on one side of the hub bearing mounting hole 2 of the front knuckle body 1, and the wheel speed sensor mounting hole 11 is threadedly connected with the wheel speed sensor; two brake caliper mounting holes 4 are provided on the left side of the front knuckle body 1, and the two brake caliper mounting holes 4 are connected and fixed with the brake caliper through fasteners; a first lower control arm mounting hole 5 and a second lower control arm mounting hole 6 are provided on the front side of the front knuckle body 1, and the first lower control arm mounting hole 5 and the second lower control arm mounting hole 6 are respectively connected with two lower control arms; a shock absorber sleeve 9 is mounted on the rear side of the upper end of the front knuckle body 1, and a slot-shaped opening 17 in communication with the inner hole and two mounting lugs 10 provided on both sides of the slot-shaped opening 17 are provided on the upper end of the shock absorber sleeve 9; the shock absorber sleeve 9 is connected with the shock absorber, one end of the shock absorber is inserted into the shock absorber sleeve 9, and the inner hole of the shock absorber sleeve 9 is clamped with the shock absorber through bolts and nuts, and the structure of the shock absorber sleeve 9 is designed, which greatly simplifies the installation of the shock absorber.

[0025] The utility model discloses a front knuckle of mcfarland type with extension steering rod structure, the front knuckle is equipped with the extension steering rod 8 structure of extension, the existence of extension steering rod 8 can make the tire of car not invade the cab and cause the harm to the driver when colliding, and the overall structure also enhances the strength of the front knuckle of car, so that the strength, rigidity and endurance can satisfy the requirement of the front knuckle of car and guarantee the life safety of the driver.

[0026] In the description of the utility model, it is understood that the orientation words such as '' before, after, upper, lower, left, right, horizontal, vertical, perpendicular, horizontal and '' top, bottom '' and the like indicated orientation or position relation usually is based on the orientation or position relation shown in the drawing, just for the convenience of describing the utility model and simplifying the description, under the condition of not making opposite statement, these orientation words do not indicate and imply the device or element must have a particular orientation or with a particular orientation structure and operation, therefore can not be understood as the restriction of the protection scope of the utility model, the orientation words '' inside, outside '' refer to the inside and outside relative to the outline of each component.

[0027] For the convenience of description, spatial relative terms can be used here, such as '' above'', '' above'', '' upper surface'', '' upper '' and the like, to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawing. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawing. For example, if the device in the drawing is inverted, the device described as '' above '' or '' above '' other devices or structures will be positioned '' below '' or '' below '' other devices or structures. Thus, the example term '' above '' can include both '' above '' and '' below '' orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative description used here is interpreted accordingly.

[0028] In addition, it should be noted that the use of '' first'', '' second '' and the like to limit parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, therefore can not be understood as the restriction of the protection scope of the utility model.

[0029] The above describes in detail the front knuckle of the MacPherson type with the extended steering rod structure provided by the application, the principles and implementation manners of the application are described by using specific examples in the text, and the above example description is only used to help understand the method of the application and the core idea thereof; meanwhile, for those skilled in the art, the specific implementation manners and application ranges will be changed according to the idea of the application, and the above description should not be understood as a limitation on the application.

Claims

1. A front knuckle of the McPherson type with extended steering rod structure, comprising a front knuckle body (1) mounted on a car wheel hub, characterized in that: The front knuckle body (1) is provided with a hub bearing mounting hole (2) in the middle, a plurality of bearing bolt holes (3) are distributed around the hub bearing mounting hole (2) on the front knuckle body (1), a steering drag rod mounting hole (7) is formed on one side of the front knuckle body (1), an extended steering rod (8) is provided outside the steering drag rod mounting hole (7), the free end of the extended steering rod (8) is provided with a machined flat surface (15), when the vehicle collides, the hub first contacts the machined flat surface (15) at the free end of the extended steering rod (8), and the direction of the hub force is changed.

2. A McPherson type front knuckle having an extended steering column structure according to claim 1, characterized in that: The length and width of the machined flat surface (15) are both between 15mm and 20mm.

3. A McPherson type front knuckle having an extended steering column structure according to claim 1, characterized in that: The machined flat surface (15) is rectangular, and the four corners of the machined flat surface (15) are all chamfered.

4. A McPherson type front knuckle having an extended steering column structure according to claim 1, characterized in that: After the front knuckle is installed, the distance between the machined flat surface (15) and the hub is 15mm.

5. A McPherson type front knuckle having an extended steering column structure according to claim 1, characterized in that: At least one stress node column (16) is provided around the extended steering rod (8).

6. A McPherson type front knuckle having an extended steering column structure according to claim 1, characterized in that: A drainage hole (13) is formed at the lowest part of the hub bearing mounting hole (2).

7. A McPherson type front knuckle having an extended steering column structure according to claim 1, characterized in that: A plurality of noise reduction grooves (14) are provided around the hub bearing mounting hole (2) on the lower end surface of the front knuckle body (1), and the noise reduction grooves (14) are in the shape of a circular arc.

8. A McPherson type front knuckle having an extended steering column structure according to claim 1, characterized in that: Three fender mounting holes (12) are provided on the bottom surface of the front knuckle body (1).

9. A McPherson type front knuckle having an extended steering column structure according to claim 1, characterized in that: A wheel speed sensor mounting hole (11) is formed on one side of the front knuckle body (1) above the hub bearing mounting hole (2).

10. A McPherson type front knuckle having an extended steering column structure according to claim 1, characterized in that: Two brake caliper mounting holes (4) are formed on the left side of the front knuckle body (1), a first lower control arm mounting hole (5) and a second lower control arm mounting hole (6) are formed on the front side of the front knuckle body (1), a shock absorber sleeve (9) is mounted on the rear side of the upper end of the front knuckle body (1), a one-character slit (17) is provided on the upper end of the shock absorber sleeve (9) and communicates with the inner hole, and two mounting lugs (10) are provided on both sides of the one-character slit (17).

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