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Reduction motor for drum brake

A technology of drum brakes and electric motors, applied in drum brakes, hydraulic drum brakes, mechanically driven drum brakes, etc.

Pending Publication Date: 2021-08-17
日立安斯泰莫法国公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, prior art geared motors are large overall size geared motors

Method used

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  • Reduction motor for drum brake
  • Reduction motor for drum brake
  • Reduction motor for drum brake

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] exist figure 2 In , a perspective view of an advantageous example of a geared motor MR1 according to the invention can be seen in relation to a drum brake 1 comprising an electric parking brake actuator 7 .

[0038] The geared motor MR1 comprises an electric motor 21 and a transmission module or reduction box 32 .

[0039] In the example shown, the electric motor 21 and its output shaft 24 extend along an axis AY, and the output axis of the transmission module extends along an axis AZ orthogonal to the axes AY and AZ.

[0040] In this example, the transmission modules are intended to extend parallel to the backplane 2 .

[0041] In the example shown, advantageously, the kinematic chain of the transmission module is in the form of a so-called compound reduction, in which the gear elements are in the form of a linear train of externally contacted stepped gears, preferably four in number to six. exist figure 2 In the example of , there are five stepped gears 34 , 35 ...

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PUM

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Abstract

A reduction motor for a parking brake mechanical actuator (7) of a drum brake comprising an electric motor (21) and a reduction gearbox (32), in which the electric motor (21) comprises an output shaft (24) extending along a first axis, the reduction gearbox (32) comprises an output shaft extending along a second axis, and in which the reduction motor also comprises at least one angle gear (44) between the electric motor (21) and the reduction gearbox (32) or at the output of the reduction gearbox (32), said angle gear (44) comprising a flat-wheel gear-pair comprising a pinion (25) and a flat gearwheel (34a), the pinion (25) being engaged with the output shaft (24) of the electric motor (21) and meshing with the flat gearwheel (34a) which is a part of the reduction gearbox (32).

Description

technical field [0001] The present invention relates to the field of automotive vehicle brakes, and more particularly, to a geared motor assembly for operating the shoes of a drum brake to provide reduced overall size. Background technique [0002] In the automotive industry, electromechanical parking brakes are used to stop a stationary vehicle in order to prevent the vehicle from moving unintentionally. Furthermore, the invention fulfills the legal requirements for a second brake system in vehicles that is independent of the normally hydraulic service brake system and, in particular, implements other comfort and safety functions through its self-diagnostic capability. [0003] It is known from document FR3016015 that, in addition to the initially provided hydraulic actuators, it is also possible to install mechanical actuators in drum brakes. exist figure 1 A drum brake of this type, marked with 1, comprises a back plate 2 rotating about an axis AX, equipped with a first...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/74F16D51/22
CPCB60T1/067F16D65/22F16D51/24F16D2121/24F16D2125/40F16D2125/48F16D2125/52B60T13/741F16H1/203B60T13/746F16D51/20
Inventor 阿尔贝托·默里纳罗锡德里克·贵格农杰勒德·卢克里斯托弗·迪帕盖坦·夸兹尤盖尔
Owner 日立安斯泰莫法国公司