KR20060067993A - Structure of rigid axle - Google Patents

Abstract

A rigid axle structure is disclosed. The disclosed rigid axle structure includes a hub that rotates according to tire rotational force when the vehicle is driven, a spindle installed centrally in the hub, and an outer peripheral surface of the hub to serve as an intermediate medium for preventing the rotational force of the hub from being transmitted to the axle. The bearing is installed, the hub nut is tightened to play the role, the washer is installed on the front end of the spindle, the washer is installed on one side of the hub nut, when the hub nut is tightened, the washer pushes and secures the bearing In the rigid axle structure provided with, the washer is characterized in that at least one protrusion is formed on the outer circumferential surface so as to contact and support the inner side wall of the hub.

According to the present invention, by forming two projections in the washer to support the inner wall of the hub to prevent the washer from contacting the hub surface to prevent the separation of the tire / hub can be prevented, noise and washer when the bearing damage There is an advantage that the driver can detect the noise generated by contacting the hub surface enough to receive maintenance, which can prevent safety accidents.

Rigid Axles, Hubs, Washers

Description

Rigid Axle Structures {STRUCTURE OF RIGID AXLE}

1 is a view schematically showing the configuration of a rigid axle structure according to the prior art.

2 is a view showing the structure of the washer of FIG.

3 is a view schematically showing the configuration of a rigid axle structure according to the present invention.

4 is a view showing the structure of the washer of FIG.

5 is a view showing in detail 'A' part of FIG.

6 is a schematic view showing the internal structure of the hub of FIG.

<Description of the symbols for the main parts of the drawings>

21.HUB

21a. guide

22. Spindle

23. Axle Casing

24. Outer bearing

25. Inner Bearing

26. Herb Nut                 

27. Washers

27a, 27b. spin

28. Oil Seal

29. Herb Cap

TECHNICAL FIELD The present invention relates to a rigid axle structure, and more particularly, to a rigid axle structure in which the structure is improved to prevent the departure of the axle.

As shown in FIG. 1, in the rigid axle structure according to the related art, a tire rotational force rotates the hub 11 while driving, and the rotational force is transmitted to the axle (spindle 12 / hub casing 13, etc.). As an intermediate medium for preventing this, a bearing, that is, an outer bearing 14 and an inner bearing 15 is provided.

In addition, when the hub nuts 16 are tightened in order for the bearings 14 and 15 to function, the washers 17 must push and fix the bearings 14 and 15.

On the other hand, Figure 2 is a detailed view of the washer 17 of Figure 1, the projection 17a is formed on the inner peripheral surface of the washer 17 to prevent the departure from the spindle 12.

However, the rigid axle structure according to the related art, which operates as described above, has an oil seal 18 on the inner bearing 15 and a hub cap 19 on the outer bearing 14, so that moisture / foreign material is contained in the bearing ( 14,15), but it is impossible to have a complete seal.

In addition, when moisture / foreign matter penetrates the bearings 14 and 15 and damages the bearings 14 and 15, noise is initially detected, but the bearing is completely damaged when the vehicle continues to run without recognizing the noise. .

In addition, the hub (tire) 11 may be separated from the spindle 12 to cause a safety accident.

At the moment, there is no device that can prevent the departure of the axle.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a rigid axle structure in which the sealing property is improved to prevent breakage of the bearing and the departure of the axle is prevented.

Rigid axle structure of the present invention for achieving the above object, the hub that rotates according to the tire rotational force when driving the vehicle, the spindle installed in the center in the hub, and the intermediate for preventing the rotational force of the hub is transmitted to the axle When the bearing is installed on the outer circumferential surface of the hub to serve as a medium, the hub nut is tightened to play the role and the hub nut is installed on the front end of the spindle, and the hub nut is installed on one side of the hub nut In the rigid axle structure provided with a washer for pushing and fixing the bearing, the washer is characterized in that at least one protrusion is formed on the outer circumferential surface of the washer in contact with and support the inner side wall of the hub.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a block diagram schematically showing the configuration of a rigid axle structure according to the present invention.

Referring to the drawings, the rigid axle structure according to the present invention includes a hub 21 that rotates according to tire rotational force when the vehicle is driven, a spindle 22 installed in the center of the hub 21, and a rotational force of the hub 21. Bearings 24 and 25 mounted on the outer circumferential surface of the hub 21 to act as intermediate mediators to prevent transmission to this axle, and the bearings 24 and 25 are tightened to serve their role and the spindle 22 A hub nut 26 installed at the front end of the hub nut and a washer 27 installed at one side of the hub nut 26 to push and fix the bearings 24 and 25 when the hub nut 26 is tightened. It is provided.

And the washer 27 forming a feature of the present invention, as shown in Figs. 2 and 3, at least one projection (27a) protruding outward of the outer peripheral surface so as to contact and support the inner side wall of the hub (21) 27b) is formed.

The protrusions 27a and 27b of the washer 27 formed as described above are respectively formed at 180 degrees on the outer circumferential surface of the washer 27. That is, as shown in Figure 3, two projections (27a, 27b) are formed in the upper and lower portions of the washer 27, respectively.

2, 5, and 6, the guides 21a are provided on the inner wall of the hub 21 so that the two washers 27 projections 27a, 27b are mounted on the inner sidewall of the hub 21. ) Is formed. As shown in FIG. 6, two guides 21a are formed on the inner wall of the hub 21.

In addition, the guide 21a is formed of an inlet groove which is inserted into the inner wall of the hub 21 to a predetermined depth so that the protrusions 27a and 27b of the washer 27 can be fitted into and coupled to the inner sidewall of the hub 21. .

On the other hand, reference numerals 28 and 29 that are not described in FIGS. 3 and 5 indicate the oil seals installed on one side of the inner bearing 25 and the hub caps installed on one side of the outer bearing 24, respectively, where moisture / foreign material is Prevents entry into bearings (24, 25).

Referring to the operation of the rigid axle structure according to the present invention having the configuration as described above is as follows.

Referring back to the drawings, the rigid axle structure according to the present invention is changed to be in contact with the hub 21 by increasing the size of the washer 27 compared to the conventional structure, the washer 27 in the direction of the hub 21 Thus, two projections 27a and 27b are formed.

And the hub (21) to form a structure that can be mounted while rotating the projections (27a, 27b) of the washer 27 (preload adjustment) by two touches.

This will be described in detail.

As shown in FIG. 4, two washers 27a and 27b are formed in the direction of the hub 21, and protrusions are formed on the inner surface of the hub 21 as shown in FIGS. 5 and 6. 27a, 27b) Two guides 21a are formed to enter the two-touch type in which two places can be mounted.

And the hub 21 bolt assembly is performed while the washer 27 is mounted to the portion of the hub 21 in a circular shape while adjusting the preload, the washer 27 is the outer bearing 24 as in the prior art It is fixed in close contact with the surface. In addition, the rotation of the tire, the hub 21, the bearing 24, 25, the outer case, the hub cap 29 and the like.

Therefore, even if the bearings 24 and 25 are damaged due to the damage of the bearings 24 and 25 due to the intrusion of moisture / foreign substances or the like, the washers 27 are in contact with the surface of the hub 21 to prevent separation. Therefore, the tire / hub 21 is not detached.

The one-touch type is simple in structure, but in the case of the two-touch type as the present invention may be detached if the guides 21a coincide with the protrusions 27a and 27b of the washer 27 and the inner surface of the hub 21. It is safe to make a structure.

As described above, the rigid axle structure according to the present invention has the following effects.

By forming two projections on the washer and supporting it on the inner wall of the hub, the washer can contact the hub surface to prevent the separation, thereby preventing the tire / hub (axle) from being separated.

In addition, when the bearing is damaged, the noise generated by the noise and the washer contacting the hub surface can be sufficiently detected by the driver for maintenance, thereby preventing safety accidents.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (5)

A hub that rotates according to tire rotation force when the vehicle is driven, a spindle installed centrally within the hub, a bearing installed on an outer circumferential surface of the hub to serve as an intermediate medium for preventing the rotational force of the hub from being transmitted to the axle, and the bearing Rigid axle provided with a hub nut tightened to serve this role and a washer installed at the front end of the spindle and a washer installed at one side of the hub nut to push and fix the bearing when the hub nut is tightened. In structure, The washer is, Rigid axle structure characterized in that at least one protrusion is formed on the outer peripheral surface so as to contact and support the inner side wall of the hub. The method of claim 1, Rigid axle structure, characterized in that the two projections are formed on the outer peripheral surface of the washer at 180 degrees. The method of claim 2, Rigid axle structure characterized in that the guide is formed on the inner wall of the hub so that the two projections are mounted on the inner side wall of the hub. The method of claim 3, Rigid axle structure characterized in that the two guides are formed on the inner wall of the hub. The method of claim 2, The guide is a rigid axle structure characterized in that the projection is formed with an inlet groove introduced into the inner wall of the hub to a predetermined depth so that the protrusion can be fitted to the inner side wall of the hub.

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