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Ramp actuator and angular-contact ball bearing unit with a cold-worked outer ring and an embossed ramp contour, and method for producing a ramp disc

A technology of actuators and rolling bearings, which is applied in the or motor field, can solve problems such as high cost and long time consumption, and achieve the effects of avoiding tilt, optimizing force application, and good functionality

Active Publication Date: 2021-03-16
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Basically, the long time-consuming and costly process involved in the machining production of ramp profiles is to be avoided

Method used

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  • Ramp actuator and angular-contact ball bearing unit with a cold-worked outer ring and an embossed ramp contour, and method for producing a ramp disc
  • Ramp actuator and angular-contact ball bearing unit with a cold-worked outer ring and an embossed ramp contour, and method for producing a ramp disc
  • Ramp actuator and angular-contact ball bearing unit with a cold-worked outer ring and an embossed ramp contour, and method for producing a ramp disc

Examples

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Embodiment Construction

[0035] figure 1 A first exemplary embodiment of a ramp actuator 1 according to the invention is shown. The ramp actuator 1 has a pivotable ramp disk 2 . The ramp disk 2 may also be referred to as a pivotable ramp ring or pivot actuator disk. exist Figure 10 In anticipation, reference is made to tooth segments 3 designed as teeth or protrusions for coupling the motor.

[0036] back figure 1 , attention should be paid to the presence of the ramp 4 on the first end face 5 or the first end face. To be precise, there are three segmented ramps 4 with concave surfaces for receiving one or more balls, for example two, three, four or five balls. These balls are not shown.

[0037] At a distance there is a raceway 6 on which the bearing rolling bodies 7 have rolling bearings 8 which are equipped to receive radial and axial forces. The rolling bearing 8 also has a bearing ring 9, ie a bearing inner ring 10, which is equipped for mounting / fixing on the shaft. The shaft is not sho...

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Abstract

The invention relates to a ramp actuator (1) for a motor vehicle transmission or a motor vehicle clutch, with a pivotable ramp disc (2) which has at least one ramp (4) on a first end side (5), which ramp (4) is prepared for rolling of a rolling body, and, spaced apart therefrom, has a raceway (6) for bearing rolling bodies (7) of an anti-friction bearing (8) which is prepared for absorbing radialand axial forces, and with a bearing ring (9) which can be fixed on a shaft, wherein firstly the ratio of axial width (17) of the ramp disc (2) relative to the supporting height (18) thereof lies between 2.9 and 4.1, and secondly the ratio between the ramp radius (19) of the ramp (4) of the ramp disc (2) relative to the supporting height (18) of the ramp disc (2) lies between 0.7 and 1.3. The invention also relates to a method for producing a ramp disc (2) for a ramp actuator (1) of this type, wherein the ramp disc (2) preferably has the ratios as described above, and the steps of drawing, upset forging and embossing are preferably passed through in this order. The invention also relates to a method for producing a ramp disc (2) for a ramp actuator (1) as far as possible of this type, wherein the smallest radial and / or axial wall thickness of the ramp disc (2) is greater than the thickness of the starting material thereof, for instance a circular blank (29), for the ramp disc (2).

Description

technical field [0001] The present invention relates to a ramp actuator for a motor vehicle transmission or motor vehicle clutch having a pivotable ramp disc / pivotable ramp ring, which may also be referred to as For pivoting the actuator disk and having optional eg external tooth elements, the ramp disk / ramp ring has on the first end face at least one ramp equipped for rolling of rolling bodies such as balls, and at a distance therefrom a raceway for the bearing rolling elements of a rolling bearing equipped to receive radial and axial forces; and a bearing ring fixable on the shaft, which is designed, for example, as an inner bearing ring, And the bearing ring in particular also has raceways for the bearing rolling elements. Background technique [0002] Clutch arrangements for motor vehicles are already known from the prior art. For example, WO 2018 / 099642 A1 discloses a clutch arrangement for a motor vehicle comprising a friction clutch and an actuator unit for actuatin...

Claims

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Application Information

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IPC IPC(8): F16D23/00
CPCF16D2023/123F16D23/00F16C19/16F16C2326/01F16D23/12F16D2200/0004F16D2250/0023
Inventor 克里斯蒂安·维尔施安德烈亚斯·诺伊德克安德烈亚斯·海因茨
Owner SCHAEFFLER TECH AG & CO KG
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