DD154864A3 - COMBINED TIGHTENED AXLE BUSHING FOR MOTOR VEHICLES - Google Patents

Abstract

The invention relates to the field of automotive engineering. The aim of the invention is to provide a greater elasticity between upper and lower bearing and that the steering knuckle arms need only be dimensioned according to the load and also a seal of storage with a long service life. The object of the invention is a combined, prestressed axle stub bearing, in which only the bearing of the supporting arm of the stub axle is biased in itself. The essence of the invention is that the hinge pin is mounted on one side in a rolling bearing and on the other side in a plain bearing. At the Waelzlagerseite is on d. Steering lever 11, a cover 12 is placed, in which a support plate 13, a prestressed plate spring 14, pressure washer 15 and spacers 16 bearing pressure piece 17 is arranged, wherein the bearing outer ring 20 is biased over the lid 12 and the plate spring 14 in itself. Averting objects of the invention are steering knuckles on steerable axles of motor vehicles.

Description

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title

Combined preloaded axle stub axle for motor vehicles

The field of application of the invention is the automotive engineering »Objects of the application are steering knuckles on steerable axles of motor vehicles«

3 inherited

There are already combined Achsschenkellagerungen for motor vehicles are known in which the bias on spacers is adjustable and the upper Achsschenkellagerung is biased against the lower Achsschenkellagerung on the steering knuckle itself or the Yorderachsgabel, as described in DD patent 104 263. The disadvantage of this solution is that due to the elasticity of the steering knuckle or the Vorderachsgabel the preload under load changes «The dimension! Tion of the Achsschenkel- or Vorderachsgabelarme must be such that a certain deformation is not exceeded, otherwise bearing failure occurs, although the Dirnensionierung from the axle load ago is not required. It also comes to an unnecessary use of mass in the steering knuckle or, in the front fork

 For conical hinge pins, the preload is lower,

when the pivot bolt is in the axle housing and the bias on both knuckle arms was Here also occur bearing damage on "There are further seals at Achsschenkeliagerungen known which are designed as so-called hanging sealing jd _e h _e the sealing member is opposite to the certain by gravity fall direction the dirt _s arranged so that a long life of the sealing elements is achieved _e ~

However, this seal has the Hachteil _s that always a AbdiGhtelement of both mounting reasons in a split bearing housing is to accommodate «,

The aim of the invention is to provide a greater elasticity between upper and lower storage and that the fork or «, Achsschenkelarme only accordingly

The load need to be dimensioned _$ d _e h »a. The purpose of the invention is also to seal the storage with a long service life.

The technical object of the invention is it _s a spanned combined Achsschenkellagerung to. create, in which only the bearing of the supporting arm of the steering knuckle is biased in itself.

The object of the invention is also _f to develop a suspended axle rack Hager seal that can be mounted without housing a sealing element of the upper or lower bearing in a split bearing housing ,,

In a combined Achsschenkellagerugn for motor vehicles, the hinge pin is mounted on one side in a rolling bearing and on the other side in a plain bearing

_3_ 222572

The features of the invention are that on the rolling bearing side on the steering lever, a lid is placed, in which a pressure piece is mounted, which is supported on a pressure stone on the hinge pin. At this pressure piece a support disk, a prestressed Tellerf ederij a thrust washer and spacers are arranged.

By the plate spring, the bearing outer ring of the rolling bearing is biased over the lid, i. the plate spring generated between bearing outer ring and inner ring of the bearing a Yorspannkraft that is so great in the unloaded state of Achschenkellagerung that the negative bathing forces can be absorbed. The prestressing of the axle stub axle takes place only via bearing outer and inner ring of the rolling bearing (plague bearing) ·

The bearing bush of the plain bearing is independent in its position from vorgsparmten bearings. It can move freely depending on the load.

The sealing of the bearing is designed as a hanging seal with undivided sealing housing. In this case, in the state of assembly of the steering knuckle, the clearance between the bearing bush and the steering knuckle arm is greater at the top than the distance between the upper edge of the axle body and the seal ring outer edge. The steering knuckle can be pushed over the axle fist.

The bushing is in the steering knuckle, is introduced in the working position in the sealing ring, remains there and takes over together with the sealing ring the seal

This solution achieves a combined prestressed axle stub axle bearing with low-wear sealing of the bearing parts »

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Ausfuhrungsbeisgiel

Me invention will be explained in more detail below in an Ausführungsbei game ^

The corresponding drawing shows in Figd a section through a prestressed axle stub bearing _{β is} on the lower Paustflache the axle body 1 is a screwed ring carrier 2 for receiving the sealing ring 3e with the bearing bush 4 _S the upper sealing ring 7 and the tapered roller bearing 8 preassembled stub axle 5 is from Joint pin 6 in the axle 1 fixed The bearing inner ring of the upper tapered roller bearing 8 is clamped by a sleeve 9 against the axle 1 with a hex nut 10

On the mounted steering lever 11, the cover 12 patched £ n him are the support plate 13 $ the plate spring 14 _$ the thrust washer 15, spacers 16j, the pressure piece 17 and the pressure stone 18 "The plate spring 14 is stretched over spacers 16 so before that when tightening the hexagon screws 19 for the D _e ckel 12 and steering lever 11, the steering knuckle 5 & it bearing outer ring 20 pulls against the bearing inner ring of the tapered roller bearing 8 and thus biased this

Now is the bearing bush 4 in the sealing ring 3 below and the working position is reached

Claims (1)

222572 Combined prestressed steering knuckle bearing for motor vehicles, wherein the hinge pin is mounted at one end in a rolling bearing and at the other end in a plain bearing, characterized in that on the rolling bearing side of the steering knuckle bearing on the steering lever (11) a D _e ckel (12) is placed in which a pressure plate (17) carrying a support disk (13), a prestressed disk spring (14), a pressure disk (15) and spacers (16) is arranged, which is supported on the joint pin (6) via a pressure stone (18) , wherein the bearing outer ring (20) of the rolling bearing (8) through the plate spring (14) via the lid (12) is biased in, so that upon relief of the bearing, with negative Eadkräften, the bias increases. Combined prestressed stub axle bearing according to item 1, characterized in that on the lower surface of the axle body (1) a downwardly open, undivided ring carrier (2), which receives the sealing ring (3), and between the stub axle (5) and sleeve (9 ) an undivided sealing ring (7), are arranged » 1 sheet of drawings 1