KR102074491B1 - Knuckle assembly for vehicle and method for assembling the same - Google Patents

Abstract

The present invention relates to a vehicle knuckle assembly and a method for assembling the same, and to a vehicle knuckle assembly and a method for assembling thereof, which can simplify the assembly process and reduce the process by improving a method of assembling a snap ring that prevents the bearing from detaching from the knuckle. The main purpose is to provide. In order to achieve the above object, a through-hole knuckle formed; And a bearing having a snap ring coupled to an outer circumferential surface thereof, the bearing being inserted into and coupled to the inside of the through hole of the knuckle, wherein the snap ring is a component that prevents the bearing from being separated from the through hole of the knuckle. A vehicle knuckle assembly, comprising: a part provided in a state coupled to and attached to a bearing for assembly of the vehicle, and fixed between the knuckle and the bearing while inserted into a coupling groove formed in the inner circumferential surface of the through hole, and an assembly method thereof This is disclosed.

Description

Knuckle assembly for vehicle and method for assembling the same}

The present invention relates to a vehicle knuckle assembly and a method for assembling the vehicle, and more particularly, to a vehicle knuckle assembly capable of improving the assembly method of a snap ring that prevents the bearing from detaching from the knuckle, thereby simplifying the assembly process and reducing the process. The assembly method is related.

In general, the suspension of the vehicle is located between the vehicle body and the wheels, and is a device that connects the two rigid bodies using one or more links, and performs the function of mechanically matching the relative movement between the vehicle body and the wheel, It absorbs the impact of the road so that it is not transmitted to the body or occupant.

Among the vehicle suspension systems, the front suspension system is classified into an axle suspension suspension system and an independent suspension vehicle, and the independent suspension front suspension system includes a wishbone type, a Macpherson type, and the like.

Among these, the McPherson type front suspension is a type in which a spring is mounted on a strut having a shock absorber, and the upper end is fixed to the vehicle body mount, and the lower end is connected to the upper end of the knuckle.

More specifically, the strut bracket having a hole is mounted at the lower end of the strut, and a hole corresponding to the hole of the strut bracket is formed at the upper end of the knuckle, and the upper end of the knuckle is inserted into the inner side of the strut bracket, By bolting to the hole, the strut and knuckle are assembled integrally.

In addition, the suspension system effectively blocks the irregular input of the road surface generated while driving the vehicle to provide a comfortable ride to the occupant, and provides driving convenience by appropriately controlling the shaking of the vehicle body caused by the driver's driving behavior and road curvature. In the case of driving on irregular roads, the vertical load on the tire ground must be maintained at an appropriate level to satisfy the basic conditions of ensuring the maneuverability and stability of the vehicle during turning and braking.

In order to satisfy these conditions, the attitude of the wheel due to the suspension geometry is very important. The attitude of the wheel is greatly changed by the relative movement with the vehicle body, and the overall performance of the vehicle is greatly increased by the changing attitude of the wheel. It will depend.

Recently, a multi-link suspension system has been developed and applied to effectively accommodate shocks, vibrations, and body vibrations input from the road surface by using at least three links. It is becoming.

In the multi-link suspension system, a carrier for mounting tires and wheels is mounted to a vehicle frame through a knuckle, and the knuckle is equipped with a trailing arm, a lower arm, an upper arm, an assist arm, and the like.

On the other hand, in the fastening of the strut and the knuckle of the suspension as described above, after mounting the strut bracket on the lower end of the strut and fasten the upper end of the knuckle with the strut bracket and bolt.

To this end, both sides of the strut bracket and the upper end of the knuckle are formed to be aligned with each other by inserting bolts into the matched holes.

In addition, when the knuckle is combined with a suspension arm such as a lower arm, upper arm, or other control arm, it can be connected with a ball joint.When the knuckle and ball joint are combined, the ball stud of the ball joint is inserted into the hole formed in the knuckle. To combine.

In addition, the knuckle serves to rotatably support the wheel of the vehicle in the suspension device, wherein the upper end of the knuckle can be connected to the strut through the strut bracket, the lower end of the knuckle and the vehicle body through the lower arm It may be connected, the wheel hub which is fixed to the wheel is coupled to the through hole of the knuckle through the wheel bearing.

1 is a perspective view of a front wheel chassis module including a suspension and steering device of a vehicle. As shown, the knuckle 11 includes a tie rod 21 for steering, a lower arm 22, and a suspension device. It is coupled with the strut assembly 23 and also with the vehicle wheel via the wheel hub.

In addition, the knuckle 11 is bolted to the strut bracket 25 installed on the strut 24 of the strut assembly 23 as described above, and is connected to the lower arm 22 by a ball joint.

FIG. 2 is a cross-sectional view of a conventional knuckle assembly, showing the installation state of the snap ring 18 to prevent the bearing 16 from being separated from the knuckle 11,

As shown, the knuckle assembly 10 includes a knuckle 11, a bearing 16 coupled to the inside of the through hole 13 of the knuckle 11, and a bearing (in the through hole 13 of the knuckle 11). A snap ring 18 is provided to prevent the detachment of 16 and wheel hub 19 is coupled to knuckle 11 via the bearing 16.

At this time, the wheel hub 19 is inserted into the bearing 16 to be assembled so as to be rotatable in the knuckle 11, and the wheel hub 19 is coupled to be rotatable integrally with the vehicle wheel not shown. .

In addition, the snap ring 18 is used to prevent the bearing 16 pressed into the through hole 13 of the knuckle 11 from escaping to the outside, and in the case of assembly, a bearing inside the through hole 13 of the knuckle 11 is used. The snap ring 18 is attached to the inlet side inner circumferential surface of the through hole 13 so that the bearing 16 does not come out of the through hole 13 in the state where the 16 was press-fitted.

At this time, the expansion force (expansion force) of the snap ring 18 in the through hole 13 to spread to the outside due to elasticity is applied to the inner circumferential surface of the through hole 13 of the knuckle 11 while the snap ring ( 18), the snap ring can prevent the bearing from being released from the knuckle.

However, according to the conventional configuration described above, after assembling the bearing 16 into the through hole 13 of the knuckle 11 on the assembly line in order to assemble the bearing to the knuckle, the through hole through which the bearing 16 is press-fitted. The snap ring 18 is coupled to the inlet side of (13).

That is, according to the conventional configuration and assembly method, the process of press-fitting the bearing 16 into the through-hole 13 of the knuckle 11 in the assembly line, after which the press-fitted bearing 16 in the through-hole 13 In order not to fall out, the process of assembling the snap ring 18 at the inlet side of the through hole is sequentially performed to assemble the bearing to the knuckle.

As a result, in the prior art, assembling between the knuckle 11 and the bearing 16 is performed in a total of two processes, and thus, it is necessary to simplify the process and reduce the number of processes.

In addition, after the bearing 16 is press-fitted into the through hole 13 of the knuckle 11, the binding of the snap ring and the fixing of the bearing are only performed by the expansion force by the elasticity of the snap ring 18 inserted into the through hole 13. As such, there is a possibility that the snap ring and the bearing may fall out of the knuckle through hole.

Accordingly, the present invention has been made to solve the above problems, the vehicle knuckle assembly that can achieve the simplification and reduction of the assembly process by improving the assembling method of the snap ring to prevent the separation of the bearing from the knuckle and its The purpose is to provide an assembly method.

In addition, the present invention improves the structure and manner in which the bearing is fixed to the knuckle by the snap ring to stably fix the bearing to the knuckle, and the vehicle knuckle assembly and the method of assembling thereof, which can reliably prevent the bearing from the knuckle. There is another purpose to provide.

In order to achieve the above object, according to an aspect of the present invention, a through-hole knuckle formed; And a bearing having a snap ring coupled to an outer circumferential surface thereof, the bearing being inserted into and coupled to the inside of the through hole of the knuckle, wherein the snap ring is a component that prevents the bearing from being separated from the through hole of the knuckle. It is a component provided in a state coupled to and attached to the bearing for the assembly of the, provides a vehicle knuckle assembly, characterized in that between the knuckle and the bearing is fixed in the state inserted into the coupling groove formed in the inner circumferential surface of the through hole.

And, according to another aspect of the invention, providing a knuckle with a through hole formed; Providing a bearing with a snap ring engaged and attached to an outer circumferential surface thereof; And inserting the bearing into the through hole of the knuckle, and coupling the bearing, wherein the snap ring is a component that prevents the bearing from being separated from the through hole of the knuckle. It provides an assembly method of a vehicle knuckle assembly, characterized in that between the knuckle and the bearing in the inserted state.

Thus, according to the vehicle knuckle assembly and the assembly method thereof according to the present invention, by simplifying the assembly method of the snap ring and the method of assembling the snap ring by using a snap ring, the assembly process can be simplified and the process can be reduced. As a result, the stable fixing of the bearings and the deviating prevention of the bearings are possible.

1 is a perspective view illustrating a front wheel chassis module including a suspension device and a steering device of a vehicle.
2 is a cross-sectional view showing a conventional knuckle assembly.
3 is a view showing the assembly process and the assembly state of the knuckle and the snap ring, the bearing in the knuckle assembly according to an embodiment of the present invention.
4 is a front view illustrating a schematic shape of a snap ring in a knuckle assembly according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, except to exclude other components unless specifically stated otherwise.

SUMMARY OF THE INVENTION The present invention has a main object to provide a vehicle knuckle assembly and a method for assembling thereof, which can achieve the simplification and reduction of the assembly process, and enable the stable fixing of the bearing and the prevention of deviating.

In the present invention, in order to achieve the above object, the assembly method of the snap ring for preventing the detachment of the bearing from the knuckle and the structure and the way in which the bearing is fixed to the knuckle by the snap ring are improved.

3 is a view showing the assembly process and the assembly state of the bearing and snap ring, knuckle in the knuckle assembly according to an embodiment of the present invention, Figure 4 is a schematic shape of the snap ring in the knuckle assembly according to an embodiment of the present invention It is the front view shown.

In FIG. 3, the bearing 16 encased in the through hole 14 of the knuckle 11 is shown in the outer shape, not in the cross-section, and thus the circumferential forearm on the outer surface (outer peripheral surface) of the illustrated bearing 16. There is shown a mounting groove 17 formed along the.

First, as shown in Figure 3, the knuckle assembly 10 according to an embodiment of the present invention is a knuckle 11, and the part and the outer peripheral surface rotatably supporting the wheel hub (not shown) in the knuckle 11 A bearing 16 having a snap ring 18 coupled thereto.

In this configuration, the snap ring 18 coupled to the bearing 16 is a component that fixes the bearing to the knuckle 11 and prevents the bearing from being released from the knuckle.

In addition, a knuckle housing 12 is formed at a central portion of the knuckle 11, and the knuckle housing 12 has a through hole 13 to which a wheel hub (not shown) is coupled with a bearing 16 interposed therebetween. .

In more detail, the knuckle housing 12 in the knuckle 11 of the knuckle assembly 10 according to the embodiment of the present invention is formed in a substantially cylindrical shape, the cylindrical inner space of the through hole 13 It becomes a part that makes up.

An upper part of the knuckle 11 (which is a left part of the drawing) may be formed with a coupling part 15a that is bolted to another part, that is, a strut bracket mounted to a lower part of the strut of a strut assembly (not shown).

In addition, the knuckle 11 may be provided with coupling parts 15b and 15c to which a tie rod (not shown) and a lower arm (not shown) coupled between another part, for example, a vehicle wheel and a vehicle body, are respectively coupled. have.

Then, the bearing 16 is inserted into the through hole 13 and coupled, and the wheel hub is inserted into and coupled to the inside of the bearing 16.

That is, the wheel hub (not shown) is coupled to the through hole 13 of the knuckle 11 with the bearing 16 interposed therebetween, so that the wheel hub is rotatable by the bearing 16 in the knuckle 11. Can be supported.

At this time, the wheel hub is coupled to rotate integrally with the vehicle wheel.

In the knuckle assembly 10 according to the embodiment of the present invention, except that the knuckle 11 and the bearing 16, the coupling ring structure and the fixing structure of the snap ring 18, the fixing and assembling method is improved as described below. In the remaining part of the knuckle 10, such as the coupling portion (15a, 15b), it may be the same as compared to the known knuckle, there may be deformation and modification from the embodiment as necessary, as shown in Figure 3 The embodiment shown is merely illustrative, and the present invention is not limited by the examples illustrated in the shape, structure, and the like.

In addition, in the embodiment of the present invention, the snap ring 18 is an accessory part of the bearing provided in a state of being pre-coupled to the mounting groove 17 formed on the outer circumferential surface of the bearing 16.

That is, the outer surface of the bearing 16 is inserted or pressed into the through hole 13 of the knuckle 11, that is, the close contact with the inner peripheral surface of the through hole 13 of the knuckle 11 when the bearing 16 is engaged. The snap ring 18 is provided to the bearing outer surface in a pre-coupled state.

At this time, an elongated mounting groove 17 is formed on the outer circumference of the outer ring or the separate bearing housing which becomes the outer surface of the bearing 16 over the entire circumference along the circumferential direction, and the snap ring 18 is mounted on the mounting groove 17. To be combined.

In this way, the snap ring 18 is provided in a state that is pre-coupled to the bearing 16, the snap ring 18 is a part attached to the bearing 16, the assembly process for assembly with the knuckle 11 When inserted into the bearing 16, the snap ring 18 is in a pre-coupled state is put into the knuckle 11 is assembled.

As a result, at least two processes, such as pressing the bearing into the through hole of the knuckle and assembling the snap ring at the inlet side of the through hole so that the bearing does not leave the through hole in assembling the knuckle and the bearing, Unlike to have to proceed sequentially in the present invention, in the present invention, since the bearing 16 is put into the assembly process in the state that the snap ring 18 is coupled, in the field of the assembly line to assemble the bearing 16 to the knuckle 11 Only one process can be carried out.

That is, since the snap ring 18 is pre-coupled to the bearing in the form of a part attached to the bearing 16, and then inserted into and provided to the assembly line, the bearing 16 to which the snap ring 18 is simply coupled in the actual assembly line is provided. Only one process of inserting and joining the through hole 13 of the knuckle 11 is performed.

Therefore, the process can be simplified and the number of processes can be reduced in the knuckle assembly assembly line or the vehicle assembly line.

In addition, in the knuckle assembly 10 according to the embodiment of the present invention, the snap ring 18 is a sub-part which is pre-coupled to the mounting groove 17 of the bearing 16 and attached to the bearing, and is shown in FIG. 4. As illustrated, it has a circular ring shape as a whole, but one side is open.

In addition, in the embodiment, the outer circumferential portion of the snap ring 18 may be formed with a projection 18a protruding in a radial direction at a predetermined interval along the circumferential direction of the ring shape.

In the through hole 13 of the knuckle 11 into which the bearing 16 is inserted, a coupling groove 14 may be formed along an inner circumferential surface position corresponding to the bearing mounting groove position in a state in which the bearing is coupled.

The coupling groove 14 of the knuckle 11 may be formed in an elongated shape along the circumferential circumference of the inner circumferential surface of the through hole 13.

In the process of inserting the snap ring 18 into the mounting groove 17 of the bearing 16, the snap ring 18 is momentarily opened slightly on the outer circumferential surface (outer surface) of the bearing 16. When it is put in the (17), the snap ring 18 is gathered back to its original shape by elasticity, and the snap ring 18 is maintained in a state where the snap ring 18 is inserted into the mounting groove 17, thereby being removed from the bearing 16. Will not.

In addition, as illustrated in FIG. 3, when the bearing 16 in the state where the snap ring 18 is engaged is inserted into the through hole 13 of the knuckle 11, the snap ring 18 is formed on the inner circumferential surface of the through hole. When compressed into a more concentrated state in the mounting groove 17 of the bearing 16, and is put into the coupling groove 14 formed on the inner circumferential surface of the through hole, the projection 18a is restored while being restored to its original shape by elasticity. The outer circumferential portion of the snap ring 18 is inserted into the coupling groove 14 of the inner circumferential surface of the through hole.

As a result, the outer circumferential portion (ie, the outer circumferential portion) of the snap ring 18 is inserted into the engaging groove 14 in the through hole 13 of the knuckle 11, and the inner circumferential portion of the snap ring 18 (I.e., the inner circumferential portion) is inserted into the mounting groove 17 of the bearing 16, the snap ring 18 is hung on both sides of the knuckle 11 and the bearing 16 at the same time, the bearing 16 Departure from the through hole 13 of the knuckle 11 is prevented.

According to the fixing structure and the fixing method of the knuckle 11 and the bearing 16 as described above, the snap ring is installed on the through hole inlet side of the bearing to simply block the through hole inlet side so that the bearing does not fall out of the through hole. Compared to the structure and manner of the projections, the projections 18a and the outer and inner circumferential portions are both snapped into the mounting grooves 17 of the bearings 16 and the engaging grooves 14 of the through holes 13. Since the ring 18 fixes and supports the bearing 16, the bearing 16 can be more stably fixed to the knuckle 11, and the separation of the bearing from the knuckle can be reliably prevented.

In addition, when the bearing 16 is inserted or pressed into the through hole 13 of the knuckle 11 with the snap ring 18 fixed to the outside of the bearing 16, the snap ring 18 is formed in the inner circumferential surface of the through hole. The snap ring 18 is stable with respect to the through hole 13 due to the expansion force (expansion force) that is expanded to some extent and then spreads out more (ie, to open more) when it is inserted into the engaging groove 14 of the The combined state is maintained, so that it is possible to stably fix the components.

Thus, according to the knuckle assembly and the assembly method thereof according to the present invention, by simplifying the assembly process and reduction of the process by improving the manner of fixing the bearing to the knuckle by using the snap ring and the assembly method of the snap ring. In addition, there is an effect that the stable fixing of the bearing and the reliably prevent the departure is possible.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are provided. It is also included in the scope of the present invention.

10: knuckle assembly 11: knuckle
12 knuckle housing 13 through hole
14: coupling groove 15a, 15b, 15c: coupling portion
16: bearing 17: mounting groove
18: Slap ring 18a: projection
19: Wheel Hub 21: Tie Rod
22: lower arm 23: strut assembly
24: Strut 25: Strut Bracket

Claims (8)

A knuckle formed with a through hole; And
A bearing having a snap ring coupled to an outer circumferential surface and inserted into and coupled to a through hole of the knuckle,
The snap ring,
The bearing prevents the bearing from being separated from the through hole of the knuckle, and is a part that is provided in a state coupled to and attached to the bearing for assembling the knuckle and the bearing, and is inserted into a coupling groove formed in the inner circumferential surface of the through hole. Between the knuckle and the bearing,
An elongated mounting groove is formed along the circumferential circumference of the outer circumferential surface of the bearing, and protrusions protruding in the radial direction at a predetermined interval along the circumferential direction are formed in the outer circumferential portion of the snap ring.
When the bearing is engaged and fixed to the through hole of the knuckle, the inner circumferential portion of the snap ring is inserted into the mounting groove of the bearing, and the projections of the snap ring are inserted into the engaging groove of the through hole. Vehicle knuckle assembly.
delete delete delete Providing a knuckle having a through hole formed therein;
Providing a bearing with a snap ring engaged and attached to an outer circumferential surface thereof; And
Inserting and inserting the bearing into the through hole of the knuckle;
Including,
The snap ring,
A part which prevents the bearing from being separated from the through hole of the knuckle, and is fixed between the knuckle and the bearing in a state of being inserted into the coupling groove formed in the inner peripheral surface of the through hole,
An elongated mounting groove is formed along the circumferential circumference of the outer circumferential surface of the bearing, and protrusions protruding in the radial direction at a predetermined interval along the circumferential direction are formed in the outer circumferential portion of the snap ring.
When the bearing is engaged and fixed to the through hole of the knuckle, the inner circumferential portion of the snap ring is inserted into the mounting groove of the bearing, and the projections of the snap ring are inserted into the engaging groove of the through hole. Assembling method of vehicle knuckle assembly. delete delete delete

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