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Electromechanical brake actuator and curved disc

A disc brake and actuator technology, applied in the direction of brake actuators, brakes, brake types, etc., can solve the problems of reduced service life, damage to the functionality of brake actuators, etc., and achieve easy maintenance and less structural complexity Effect

Pending Publication Date: 2022-04-01
ZF CV SYST EURO BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to a mechanical load on the actuator and also to a possible reduced service life or a direct impairment of the functionality of the brake actuator

Method used

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  • Electromechanical brake actuator and curved disc
  • Electromechanical brake actuator and curved disc
  • Electromechanical brake actuator and curved disc

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0069] figure 1 An electromechanical actuator 102 is shown with a housing 104 . The actuator 102 has an electric motor 106 . The drive torque of the electric motor 106 is via the housing (see figure 2 ) is passed to the curve disk 108. Curved disk 108 serves to transmit the rotational movement of curved disk 108 non-linearly to brake tappet 114 .

[0070] The brake tappet 114 can deviate, in particular linearly, in the direction of the arrow shown. The brake tappet 114 has a tappet head 112 at its end facing the curve disk 108 . The tappet head 112 surrounds a rolling body 110 mounted by means of a bearing 116 . The rolling elements 110 slide on the peripheral surface of the curved disk 108 . Thus, a conversion of the rotational movement of the curved disc 108 into a linear movement of the brake tappet 114 is achieved. The electromechanical actuator 102 is in particular connectable to a brake (not shown) via a connection section 118 .

[0071] exist figure 2 The alr...

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PUM

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Abstract

The invention relates to an electromechanical brake actuator (102, 202, 302, 402) for a brake, in particular a commercial vehicle disc brake, comprising: an electric motor (106, 206); the invention relates to a brake device for a motor vehicle, comprising an electric motor (368), a curved disc (108, 108 ', 108' ', 208, 308, 408) operatively connected to the electric motor, and a brake tappet (114, 214, 314) for actuating a brake lever (358) of the brake (368), the curved disc (108, 108', 108 '', 208, 308, 408) and the brake tappet (114, 214, 314) having contact surfaces lying against one another for directly transmitting a drive torque, the contact surfaces of the curved disc (108, 108 ', 108' ', 208, 308, 408) extending about a rotational point D at a distance r in the radial direction, the distance is defined as a function of a rate of change dependent on the angular position of the curvilinear disc (108, 108 ', 108' ', 208, 308, 408) and the contact surface is configured to effect a non-linear transition between the drive torque of the curvilinear disc (108, 108', 108 '', 208, 308, 408) and the force transmitted to the brake tappet (114, 214, 314), where the distance is minimum in the angular position and maximum in the angular position. It is proposed that the rate of change is at least partially positive in the first angular range and that the rate of change is at least partially negative in the second angular range.

Description

technical field [0001] The invention relates to an electromechanical brake actuator for brakes, in particular disc brakes of commercial vehicles, having an electric motor for generating a drive torque; A curved disk supported in the manner of movement; and a brake tappet movable along the axis of the tappet for operating a brake lever of the brake, wherein the curved disk and the brake tappet have mutually abutting contact surfaces, the contact surface Sliding or rolling relative to each other serves to directly transmit the drive torque between the curved disk and the brake tappet, wherein the contact surface of the curved disk extends around the point of rotation D by a distance r in the radial direction, which is defined as Depending on the angular position of the curve disk with a rate of change The function And the contact surface is configured to achieve a non-linear transition between the driving torque of the curved disc and the force transmitted to the brake tap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/18F16D55/226F16D121/24F16D121/14F16D125/50F16D125/32F16D125/48
CPCB60T13/741F16D65/18F16D2121/24F16D55/2255F16D2125/32F16D2125/48F16D2125/50B60T13/743F16D55/226F16D65/183
Inventor 彼得·拜尔阿恩·雷恩斯简·雷恩斯克里斯托夫·莫里茨
Owner ZF CV SYST EURO BV
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