DE7245141U - Self-centering clutch release bearing - Google Patents

Description

SKF KUOELLAOERFABRIKEN GMBH Schweinfurt, December 8, 1972

TP / Pa7, / ie

Self-centering clutch release bearing

The innovation concerns a self-centering clutch release bearing, the by means of an elastic ring located in his Bohnmg or the like. supported angularly movable with respect to a shaft arranged in the bore is and for the attack of parts on the rotating bearing ring has a spherical end face.

A release bearing for clutches is known (DOS 1 929 184), in particular for motor vehicles, consisting of a guide part attached to the clutch or gearbox housing and a sliding part that sits on the fixed guide part is arranged to be axially movable. Here, the bore of the sliding part is made larger in diameter than the diameter of the guide part. The sliding part is supported on the fixed guide part by means of flexible means connected in between. In the literary position is also stated that the sliding sleeve can be omitted entirely. The yielding ones Agents can be inserted directly into the grooves of the inner ring «.

The subject of the innovation is based on this prior art the task is based on a clutch release bearing as opposed to the clutch-side To center release parts that an offset is completely avoided and that no additional forces or moments on the bearing be transmitted.

This object is achieved according to the invention in that the in the bore of the clutch release bearing located elastic ring in the area of the force application of sliding parts is arranged, and the face of the clutch release bearing is designed as a spherical zone, the center of which is on the

SKP KUGELLAOERPABRIKEN QMBH BJatt - 2 -

The center of the radial plane of the elastic ring with the central one Ash == i = r "eile 11? =; *, Eier d? F- Pt" «hw» «5rfc f! Jr rlie Winkelbeuresrunsren eis« release bearing forms. This advantageously ensures that sioh the release mechanism is supported directly on the shaft or guide sleeve and Additional forces arising from the movement between the verse mechanism and the stationary bearing ring result, not over as a clutch pressure spring trained release parts are transferred.

In a further advantageous embodiment of the innovation, the components are opposite the end face of the cupola disengagement bearing, which is designed as a spherical zone conically angled. The release parts can also be concave be educated.

According to the invention, it is furthermore advantageous if one that is in contact with the spherical zone Centering ring is held on the component parts by means of retaining springs and with this is in contact with the company.

Further advantages, features and possible uses of the innovation result can be seen from the figures, which are described below,

It shows:

Fig. 1 shows a clutch release bearing according to the invention in Sectional view,

Fig. 2 shows the pairing between the end face of the clutch release bearing and equipment parts in another embodiment of the innovation and

Fig. 5 ei ⁿ another exemplary embodiment of innovation.

Figure 1 shows a clutch release bearing located on a shaft 1 or guide sleeve 2. The clutch release bearing is designed as an angular contact ball bearing in the present case and consists of an inner ring 3 * rolling elements 4 and an outer ring 5. In the bore 6 of the outer ring designed as a sliding sleeve

72451 Atif. 3:73

SKP KÜOELLAOERPABRIKEN OMBH sheet - 3 -

rings 5 see a groove 7, which receives an elastic means 8 serves. In the exemplary embodiment, the elastic means 6 is a well-known round bean ring. A rigid ring can also be provided. Nloht

Versohiebeteile shown grip at 9 on the designed as a sole plate Outer ring 5 of the clutch release bearing. The force application point 9 and the Rundsohnurring 8 lie in a radial plane that is worthwhile with C-B be ze is. A central axis E-P of the PUhrungshUlse or shaft 1 penetrates this plane at M. This point M is the center of the Kadiut R of a spherical zone 10 which forms the end face of the inner ring 3. At the ball zone 10 sioh supports an AusrUokteil designed as a clutch pressure spring 11, the is in communication with the clutch. In the exemplary embodiment, the clutch pressure spring 11 is angled at its end 12. The end 12 is flat or adapted to the contour of the spherical zone 10.

Figure 2 shows a further AusfUhrungsbeiepiel the invention, wherein the Spherical zone 10 of the end face of the inner ring 3 with a spherical zone-shaped Surface 13 of a Zentrlerringes 14 is paired. The radius of this spherical zone-shaped surface 13 is denoted by R. The centering ring 14 is by means of a retaining spring 15 is held in its position and a compression spring 11 presses against its face 16.

In Figure 1, the force application point 17 of the clutch spring 11 is projected onto the central axis E-F of the shaft or PUhrungehUlse 1. Here results See the point of intersection D. In the event of an offset between the axis of rotation of the coupling and the coupling pressure spring 11, sliding movements between them result the rotating bearing ring 3 and the clutch pressure spring and between the fixed bearing ring 5 and the shaft or guide sleeve 1. These sliding movements can be reduced by enlarging the Streoke M-D.

Figure 3 shows a further exemplary embodiment of the innovation. GUIDE SLEEVE or the shaft and the elastic ring of Figure 1 can be omitted here. The coupling bearing 2 is angularly movable here on a lever or a sole plate 18 supported »The point of application of force is marked with S. Force attack

SKP HUGELLAOERFABRIKEN GMBH Sheet - 4 -

Point S also forms the center point for the spherical zone 10 of the circumferential length .

72M14115.3.73

Claims (3)

1. Self-centering clutch release bearing, which by means of a in its Bore located elastic ring od. The like. Is supported angularly movable relative to a shaft arranged in the bore, and for the Attack of release parts on the rotating bearing ring has a spherical end face, characterized in that the elastic ring (8) in the Area of application of force (9) is arranged by sliding parts, and the end face is designed as a spherical zone (10), the center of which (M) at the point of penetration of the radial plane of the elastic ring (8) with the central axis (E-F) of the shaft (1), which forms the fulcrum (M) for the angular movement of the release bearing (2). 2. Self-centering clutch Ausrüc ¹ 'he according to claim 1, characterized in that the 3 release parts designed as a compression spring (11) are conically angled with respect to the end face formed as Kugelzore (10), 3. Self-centering clutch release bearing according to claim 1, characterized in that that the AusrUckteile (1) designed as a compression spring (11) opposite the end face designed as a spherical zone are concave. 4r self-centering clutch release bearing according to claims 1-3 »marked by means of a centering ring (14) which touches the spherical zone and which is held on and with the outrigger parts by means of retaining springs (15) in touch contact (16). 5 · Clutch release bearing according to claims 1-4, characterized in that the non-rotating bearing ring (5) on a lever or a disc (18) is supported angularly movable and the force application point (S) of the lever (18) is the center of the Kugelaone (10) designed as the end face of the forms circumferential bearing ring (3).