CN218287875U - Double-ball-head steering knuckle assembly, suspension and automobile with double-ball-head steering knuckle assembly - Google Patents

Abstract

The utility model provides a two ball knuckle assemblies, suspension and car thereof, two ball knuckle assemblies include: a knuckle body; the ball pin comprises an upper ball pin and a lower ball pin; and a connecting member for connecting the ball pin and the knuckle body; the steering knuckle body is provided with a ball pin through hole, the ball pin is clamped into the ball pin through hole, the side wall of the ball pin through hole is provided with a ball pin through notch, and the connecting piece laterally extrudes the ball pin through notch to connect the ball pin and the steering knuckle body. Connect last ball round pin and ball round pin structure down of connecting control arm and lower control arm respectively through the design, ball round pin through-cut on the rethread connecting piece extrusion ball round pin through-hole is in order to connect ball round pin and knuckle body, traditional connected mode relatively, knuckle structure through two bulbs has reduced control arm and control arm outer centre of sphere hard spot Z to the height down, satisfies low-grade motorcycle type demand, more importantly can reduce holistic automobile body longeron height, and does not influence the installation drive shaft.

Description

Double-ball-head steering knuckle assembly, suspension and automobile with double-ball-head steering knuckle assembly

Technical Field

The utility model belongs to the technical field of the car and specifically relates to a two bulb knuckle assemblies, suspension and car thereof.

Background

Vehicle suspension systems typically include a plurality of links between the vehicle frame and the wheel support knuckles. The wheel support knuckles are connected to the vehicle frame by upper and lower control arms or links that form an articulated linkage. The linkage enables the vehicle to move in a controlled manner relative to the wheels. The vibration damping device and the spring are provided to absorb the received impact and to make the running smooth. Other links connecting the wheel support knuckle to the vehicle frame include an arcuate lever and a rear link for adjusting the position of the wheel.

The existing steering knuckle for the vehicle has the following problems:

the high-position double-cross-arm suspension knuckle is slender, so that the arrangement position of an upper control arm is high, and the installation point of a vehicle body cannot be reduced; other common low-position double-wishbone suspension ball heads are mostly pressed on an upper control arm and a lower control arm, and penetrate into mounting holes from top to bottom together with a steering knuckle, and the vertical distance between the lower boundary of an upper ball pin and the axis of a wheel is smaller under the condition of setting the same hard point, so that a front driving shaft cannot be arranged; the ball pin and the swing arm are generally assembled by adopting a spin riveting process, so that the structure of the swing arm is complex, the thickness of materials near the ball pin is large for the aluminum alloy swing arm, the movement clearance between the ball pin and peripheral parts is influenced, and the structure is difficult to compact.

In view of this, the present invention is especially provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a two bulb knuckle assemblies, suspension and car to solve the technical problem who provides among the prior art.

The utility model discloses the first aspect provides a two ball head knuckle assembly, include:

a knuckle body;

the ball pin comprises an upper ball pin and a lower ball pin which are respectively used for connecting the upper control arm and the lower control arm;

the connecting piece is used for connecting the ball pin steering knuckle body;

the steering knuckle body is provided with a ball pin through hole, the ball pin is clamped into the ball pin through hole, the side wall of the ball pin through hole is provided with a ball pin through notch, and the connecting piece extrudes the ball pin through notch in the lateral direction to connect the ball pin and the steering knuckle body.

In this scheme, through design connect respectively control arm and control arm down last ball round pin and ball round pin structure down, the ball round pin on the rethread connecting piece extrusion ball round pin through-hole link up the incision, and then connect ball round pin and knuckle body, traditional connected mode relatively, the structure through double-bulb head has reduced the mounting height of last control arm, but the rim of the little specification of adaptation satisfies low grade motorcycle type demand, more importantly can reduce holistic automobile body longeron height. Through being connected with the knuckle ball pin, avoided original double wishbone suspension bulb to be the problem of pressure equipment on upper and lower control arm mostly, avoided the vertical distance of control arm outer ball pin and wheel axis too short when reducing the mounting height of control arm, be convenient for install the front drive axle.

The utility model discloses an among the further scheme, ball round pin through-hole is equipped with the ball round pin and link up and still be equipped with the fastening bolt through-hole on the notched lateral wall, and the connecting piece includes fastening bolt and nut, and fastening bolt passes behind the fastening bolt through-hole to be connected with the nut and link up the incision with the extrusion ball round pin.

In this scheme, the connecting piece passes the fastening bolt through-hole through fastening bolt, again with nut threaded connection, through threaded connection's effect realization to the notched side direction extrusion of ball round pin link up, and then realize being connected of ball round pin and knuckle body.

In a further aspect of the present invention, the knuckle body is provided with a tapered hole for connecting an outer ball head of a tie rod of a steering gear.

The utility model discloses an among the further scheme, still be provided with a convex surface on the knuckle body for install the wheel hub bearing, be equipped with wheel hub bearing installation through-hole and the big through-hole of center on the convex surface, be used for supplying the drive shaft to pass through.

The utility model discloses an among the further scheme, the opposite side of relative taper hole still is equipped with the engaging lug on the knuckle body, and the engaging lug is equipped with two at least, is equipped with the brake caliper mounting hole on the engaging lug for installation brake caliper.

In a further aspect of the present invention, the ball pin includes: the ball pin rod is used for connecting the upper control arm and the lower control arm, the ball pin seat is used for being clamped into the ball pin through hole, the ball head of the ball pin rod is riveted in the ball pin seat in a rotating mode, and the dust cover is sleeved at the connecting position of the ball pin rod and the ball pin seat.

The traditional ball pin and the swing arm are generally assembled by a spin riveting process, so that the structure of the swing arm is complex, the material thickness near the ball pin is large for the aluminum alloy swing arm, the movement clearance with peripheral parts is influenced, the structure is difficult to compact, the ball pin and a steering knuckle which are pressed on the upper control arm and the lower control arm penetrate into an installation hole from top to bottom, the vertical distance between the lower boundary of the upper ball pin and the axis of a wheel is small under the condition of setting the same hard point, and a front driving shaft cannot be arranged; if the upper control arm is integrally lifted, the height of the vehicle body mounting point and the height of the vehicle body longitudinal beam can not be reduced, and the upper control arm is not suitable for the requirement of a novel sliding plate platform flat ground plate. In this scheme, go up the ball pin socket of ball round pin and penetrate the knuckle from top to bottom and install the macropore, the side direction adopts fastening bolt, nut locking (if tapping on the knuckle body then the nut can be cancelled). The ball pin rod faces upwards and is used for connecting the upper control arm body. The structure can ensure that the hard point of the sphere center is reduced to the minimum under the condition of ensuring the reasonable clearance with the driving shaft fixed joint, namely, the mounting position of the upper control arm can be integrally moved downwards, the corresponding mounting structure height of the vehicle body is reduced, the mounting mode of the lower ball pin is the same as that of the upper ball pin, and the relative clearance between the rim and the steering joint is kept unchanged, so that the space below the outer ball pin of the lower control arm can be saved.

The utility model discloses an among the further scheme, ball round pin through-hole includes ball round pin through-hole and lower ball round pin through-hole simultaneously, goes up ball round pin card and goes into ball round pin through-hole for connect the upper control arm, lower ball round pin card is gone into down in the ball round pin through-hole, is used for connecting lower control arm.

In this scheme, the face of cylinder cooperation is all adopted with the knuckle to go up the ball cotter of ball round pin and ball round pin down, runs through the incision from top to bottom having to the knuckle side, and fastening bolt and nut locking are used in the side direction, and the assembly methods is simple, and great area of contact also can be guaranteed in great ball cotter installation aperture, improves bearing capacity.

The utility model discloses an among the further scheme, go up ball round pin and ball round pin down and all go into respectively from top to bottom and go up in ball round pin through-hole and the ball round pin through-hole down, go up ball round pin and last ball round pin through-hole and the contact surface of ball round pin and ball round pin through-hole down for the face of cylinder.

The utility model discloses the second aspect provides a two bulb knuckle suspensions, its characterized in that: including the utility model discloses the first aspect provides a pair of bulb knuckle assembly, still including setting up last control arm on last ball round pin, setting up lower control arm on ball round pin down, setting up the steering engine drag link on the taper hole, setting up in the wheel hub bearing of convex surface, traveller and set up in the brake caliper of calliper mounting hole.

The utility model discloses the third aspect provides an automobile, include the utility model discloses the first aspect provides a pair of bulb knuckle assembly.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses a design is connected respectively and is connected the last ball round pin of control arm and lower control arm and ball round pin structure down, ball round pin through-hole on the rethread connecting piece extrusion ball round pin through-hole link up the incision in order to connect ball round pin and knuckle body, traditional connected mode relatively, knuckle structure through the double-bulb has reduced the outer centre of sphere hard spot Z of last control arm and lower control arm to the height, so can reduce the mounting height of last control arm, the rim of the little specification of adaptation, satisfy low level other motorcycle type demand, more importantly can reduce holistic automobile body longeron height, through being connected with knuckle ball round pin, avoided original double-arm bulb suspension mostly the problem of pressure equipment on control arm from top to bottom, avoided the vertical distance of control arm outer ball round pin and wheel axis too short when reducing the mounting height of control arm, be convenient for install the front drive shaft.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a double-ball-head steering knuckle assembly according to an embodiment of the present invention;

fig. 2 is an exploded view of a double ball steering knuckle assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a knuckle body according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a knuckle body according to an embodiment of the present invention;

fig. 5 is a schematic structural view of an upper ball pin or a lower ball pin according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a double-ball-head knuckle suspension according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an automobile according to an embodiment of the present invention.

Reference numerals

10. An upper control arm; 20. A lower control arm;

30. a traveler; 40. A steering gear tie rod;

50. a front drive shaft; 60. A hub bearing;

300. a double ball head knuckle assembly; 100. A ball pin is arranged;

200. a ball pin is arranged; 311. Fastening a bolt;

312. a nut; 301. A ball pin through hole is arranged;

302. a lower ball pin through hole; 303. The upper ball pin penetrates through the notch;

304. the lower ball pin penetrates through the notch; 305. Fastening a bolt through hole by an upper ball pin;

306. the lower ball pin fastens the bolt through hole; 307. A taper hole;

308. a convex surface; 309. A hub bearing mounting hole;

310. a central large through hole; 313. Connecting lugs;

110. a ball pin rod is arranged; 210. A ball pin rod is arranged;

120. a ball pin dustproof cover is arranged; 220. A lower ball pin dust cover;

130. a ball pin seat is arranged; 230. A ball pin seat is arranged;

1. an automobile.

Detailed Description

In order to make the above and other features and advantages of the present invention more apparent, the present invention will be further described with reference to the accompanying drawings. It is understood that the specific embodiments described herein are for purposes of illustration only and are not intended to be limiting.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

The utility model discloses a problem to prior art exists, has provided a general utility model design to solve the problem that exists among the prior art, the utility model discloses a design is connected respectively and is connected last ball round pin 100 and ball round pin 200 structure down of control arm 10 and lower control arm 20, and the ball round pin on the rethread connecting piece extrusion ball round pin through-hole link up the incision with connecting ball round pin and knuckle body (not reference numeral), has avoided original two xarm suspension bulbs to be the problem on control arm 20 about the pressure equipment more, has avoided the vertical distance of control arm outer ball round pin and wheel axis short excessively when reducing the mounting height of control arm 10, is convenient for install the front drive shaft.

Referring to fig. 1-5, a first aspect of the present invention provides a double ball head steering knuckle assembly 300, including:

a knuckle body;

a ball pin including an upper ball pin 100 and a lower ball pin 200 for connecting the upper control arm 10 and the lower control arm 20, respectively;

the connecting piece is used for connecting the ball pin steering knuckle body;

the steering knuckle comprises a steering knuckle body and is characterized in that a ball pin through hole (comprising an upper ball pin through hole 301 and a lower ball pin through hole 302) is formed in the steering knuckle body, a ball pin is clamped into the ball pin through hole, a ball pin through notch (comprising an upper ball pin through notch 303 and a lower ball pin through notch 304) is formed in the side wall of the ball pin through hole, and a connecting piece laterally extrudes the ball pin through notch to connect the ball pin and the steering knuckle body.

It can be understood that a Knuckle, which is one of important parts in a steering axle of an automobile, can make the automobile stably run and sensitively transmit a running direction, and the Knuckle functions to transmit and bear a front load of the automobile, support and drive a front wheel to rotate around a kingpin so as to steer the automobile. In a driving state of the automobile, the automobile bears variable impact loads, so that the automobile is required to have high strength; the suspension is a general term for all force-transmitting connecting devices between a frame (or a load-bearing vehicle body) and an axle (or a wheel) of an automobile, and has the functions of transmitting force and torque acting between the wheel and the frame, buffering impact force transmitted to the frame or the vehicle body from an uneven road surface, and reducing vibration caused by the impact force so as to ensure that the automobile can run smoothly.

In the scheme, the upper ball pin 100 and the lower ball pin 200 structures of the upper control arm 10 and the lower control arm 20 are respectively connected through design, and then the ball pin through cut-outs on the ball pin through holes are laterally extruded through the connecting piece to connect the ball pins and the steering knuckle body, compared with the traditional connection mode, the Z-direction height of the hard point of the outer ball centers of the upper control arm 10 and the lower control arm 20 is reduced through the steering knuckle structure of the double-ball head, so that the mounting height of the upper control arm 10 can be reduced, the wheel rim with small specification is adapted to meet the requirements of low-grade vehicle types, more importantly, the height of the whole vehicle body longitudinal beam can be reduced, the problem that the original double-cross-arm suspension ball head is mostly pressed on the upper control arm 20 and the lower control arm 20 is avoided through the connection with the steering knuckle ball pin, the vertical distance between the outer ball pin of the control arm and the wheel axis is prevented from being too short while the mounting height of the upper control arm 10 is reduced, and the front driving shaft is convenient to mount.

In a further aspect of the present invention, the ball pin through hole is provided with a fastening bolt through hole (including the upper ball pin fastening bolt through hole 305 and the lower ball pin fastening bolt through hole 306) on the side wall of the ball pin through hole through cut, the connecting member includes a fastening bolt 311 and a nut 312, and the fastening bolt 311 is connected with the nut 312 by screw thread to penetrate through the cut with the extrusion ball pin.

In this scheme, the connecting piece passes the fastening bolt through-hole through fastening bolt 311, again with nut 312 threaded connection, realizes lining up notched side direction extrusion to the ball round pin through threaded connection's effect, and then realizes being connected of ball round pin and knuckle body.

In a further aspect of the present invention, the knuckle body is provided with a tapered hole 307 for connecting the outer ball of the tie rod of the steering gear.

The utility model discloses a further scheme is in, still be provided with convex surface 308 on the knuckle body, still be provided with wheel hub bearing mounting hole 309 on the convex surface 308 for installation wheel hub bearing 60, central big through-hole 310 is used for the drive shaft to pass through.

The utility model discloses an among the further scheme, the opposite side of relative taper hole still is equipped with engaging lug 313 on the knuckle body, and engaging lug 313 is equipped with two at least, is equipped with the brake caliper mounting hole on the engaging lug 313 for installation brake caliper.

In a further aspect of the present invention, the ball pin includes: the ball pin rod (including last ball pin rod 110 and lower ball pin rod 210), the dust cover (including last ball pin dust cover 120 and lower ball pin dust cover 220) and ball round pin seat (including last ball round pin seat 130 and lower ball round pin seat 230), the ball pin rod is used for connecting last control arm 10 and lower control arm 20, the ball round pin seat is used for the card to go into the ball round pin through-hole, the bulb portion of ball pin rod is riveted soon in the ball round pin seat, the dust cover is established in the junction of ball round pin rod and ball round pin seat.

The traditional ball pin and the swing arm are generally assembled by a spin riveting process, so that the structure of the swing arm is complex, the material thickness near the ball pin is large for the aluminum alloy swing arm, the movement clearance with peripheral parts is influenced, the structure is difficult to compact, the ball pin and a steering knuckle which are pressed on the upper control arm and the lower control arm penetrate into an installation hole from top to bottom, the vertical distance between the lower boundary of the upper ball pin and the axis of a wheel is small under the condition of setting the same hard point, and a front driving shaft cannot be arranged; if the upper control arm is integrally lifted, the height of the vehicle body mounting point and the height of the vehicle body longitudinal beam can not be reduced, and the upper control arm is not suitable for the requirement of a novel sliding plate platform flat ground plate. In this embodiment, the ball pin seat of the upper ball pin 100 penetrates the upper ball pin through hole 301 on the knuckle from top to bottom, and is laterally locked by the fastening bolt 311 and the nut 312 (if tapping is performed on the knuckle body, the nut 312 may be eliminated). The ball pin rod faces upward and is used for connecting the upper control arm 10 body. The structure can ensure that the hard point of the sphere center is reduced to the minimum under the condition of ensuring the reasonable clearance with the driving shaft fixed joint, namely, the mounting position of the upper control arm 10 can be wholly moved downwards, the corresponding mounting structure height of the vehicle body is reduced, the mounting mode of the lower ball pin 200 is the same as that of the upper ball pin 100, the relative clearance between the rim and the steering joint is kept unchanged, and therefore, the space below the outer ball pin of the lower control arm 20 can be saved.

Referring to fig. 5, in a further aspect of the present invention, the ball pin through hole includes an upper ball pin 100 through hole and a lower ball pin 200 through hole, the upper ball pin 100 is inserted into the upper ball pin through hole 301 for connecting the upper control arm 10, and the lower ball pin 200 is inserted into the lower ball pin through hole 302 for connecting the lower control arm 20.

In this scheme, the ball pin seat of last ball pin 100 and lower ball pin 200 all adopts face of cylinder cooperation with the knuckle body, and the knuckle body side has the upper and lower incision that runs through, and the fastening bolt 311 and nut 312 are locked for the side direction, and assembly methods is simple, and great area of contact also can be guaranteed in great ball pin seat installation aperture, improves bearing capacity.

In the further embodiment of the present invention, the upper ball pin 100 and the lower ball pin 200 are respectively inserted into the upper ball pin through hole 301 and the lower ball pin through hole 302 from top to bottom.

Referring to fig. 6, the utility model discloses the second aspect provides a two ball knuckle suspensions, include the utility model discloses a two ball knuckle assemblies 300 that the first aspect provided still includes the last control arm 10 that sets up on last ball round pin 100, sets up lower control arm 20 on ball round pin 200 down, sets up steering gear tie rod 40 on taper hole 307, sets up in the wheel hub bearing 60 of convex surface 308, traveller 30 and sets up in the brake caliper of calliper mounting hole, and 50 are the front drive axle in the picture.

Referring to fig. 7, the third aspect of the present invention provides a car 1, including the present invention provides a double ball steering knuckle assembly 300.

Further, it should be understood by those skilled in the art that if the dual ball-and-socket steering knuckle assembly 300, the suspension and the automobile 1 thereof provided by the embodiments of the present invention are combined and replaced by fusing, simply changing, mutually changing, etc., all or part of the related sub-modules, such as the components are placed at the moving positions; or the products formed by the components are integrally arranged; or a detachable design; any combined component can be combined into a device/apparatus/system with a specific function, and the device/apparatus/system is used to replace the corresponding component of the present invention, which also falls into the protection scope of the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A double ball head knuckle assembly, comprising:

a knuckle body;

the ball pin comprises an upper ball pin and a lower ball pin which are respectively used for connecting the upper control arm and the lower control arm;

and a connecting member for connecting the ball pin and the knuckle body;

wherein, be equipped with ball round pin through-hole on the knuckle body, ball round pin through-hole including the last ball round pin through-hole that is used for the card to go into the ball round pin with be used for the card to go into the lower ball round pin through-hole of ball round pin down, ball round pin card is gone into in the ball round pin through-hole, be equipped with ball round pin through-hole's the lateral wall and link up the incision, the connecting piece link up the incision through side direction extrusion ball round pin with connect the ball round pin with the knuckle body.

2. The double-ball-head steering knuckle assembly according to claim 1, wherein a fastening bolt through hole is further formed in a side wall of the ball pin through hole, which is provided with the ball pin through notch, the connecting piece comprises a fastening bolt and a nut, and the fastening bolt penetrates through the fastening bolt through hole and then is connected with the nut to laterally press the ball pin through notch.

3. The double-ball steering knuckle assembly according to claim 1, wherein the knuckle body is provided with a tapered bore for connecting to an outer ball of a tie rod of a steering gear.

4. The double-ball-head steering knuckle assembly of claim 1, wherein the steering knuckle body further comprises a convex surface for mounting a hub bearing, and the convex surface is provided with a hub bearing mounting through hole and a central large through hole for a driving shaft to pass through.

5. The double-ball-head steering knuckle assembly according to claim 3, wherein the other side of the steering knuckle body opposite to the taper hole is further provided with at least two connecting lugs, and the connecting lugs are provided with brake caliper mounting holes for mounting brake calipers.

6. The double-ball steering knuckle assembly of claim 5 wherein said ball pin comprises: ball pin pole, dust cover and ball key seat, ball pin pole is used for connecting control arm and lower control arm, ball key seat is used for the card to go into ball round pin through-hole, the bulb portion of ball pin pole is riveted soon in the ball key seat, the dust cover is established ball pin pole with the junction of ball key seat.

7. The double-ball-head steering knuckle assembly according to claim 6, wherein the upper ball pin through hole and the lower ball pin through hole are respectively located at the upper end and the lower end of a central large through hole axis, the upper ball pin is clamped into the upper ball pin through hole for connecting the upper control arm, and the lower ball pin is clamped into the lower ball pin through hole for connecting the lower control arm.

8. The double-ball-head steering joint assembly according to claim 7, wherein the upper ball pin and the lower ball pin are respectively clamped into the upper ball pin through hole and the lower ball pin through hole from top to bottom, and contact surfaces of the upper ball pin and the upper ball pin through hole and the lower ball pin through hole are cylindrical surfaces.

9. The utility model provides a two ball head knuckle suspension which characterized in that: the double-ball-head steering knuckle assembly of any one of claims 1-8, further comprising an upper control arm disposed on the upper ball pin, a lower control arm disposed on the lower ball pin, a steering tie rod disposed on the tapered bore, a hub bearing disposed on the convex surface, a strut, and a brake caliper disposed in the caliper mounting hole.

10. An automobile, characterized in that: comprising a double ball-head steering knuckle assembly according to any one of claims 1-8.

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