Provided is a disc brake provided with a planetary gear reduction mechanism that provides a good meshing state of gears during operation. An internal gear (84) of a planetary gear reduction mechanism (55) used in a disc brake is provided with: a cylindrical support section (112) that rotatably supports a sun gear (82); an annular wall part 111 which is separated from the bull gear 88 by a predetermined distance in the axial direction of the bull gear 88 and is arranged opposite to the bull gear 88; and a reaction force receiving section (114) that is disposed so as to overlap the large gear (88) when viewed from the radial direction of the large gear (88), and that receives a reaction force accompanying the rotation of the sun gear (82). Therefore, the meshing state of the planetary gear speed reduction mechanism 55 is good, adverse effects on performance, strength, operation noise and the like related to transmission of rotation torque can be suppressed, and the reliability of the planetary gear speed reduction mechanism 55 can be improved.

    提供一种具备使工作时的各齿轮的啮合状态良好的行星齿轮减速机构的盘式制动器。盘式制动器中采用的行星齿轮减速机构55的内齿轮84具有:圆筒状支承部112,其将太阳轮82支承成能够旋转;圆环状壁部111,其在大齿轮88的轴向上与大齿轮88分离规定距离且对置配置;反力接受部114,其配置成从大齿轮88的径向观察与大齿轮88重叠,接受与太阳轮82的旋转相伴的反力。由此,行星齿轮减速机构55的啮合状态良好,能够抑制对与旋转扭矩的传递有关的性能、强度、工作声等的不利影响,使其可靠性提高。


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    Title :

    Disc brake and planetary gear reduction mechanism


    Additional title:

    盘式制动器和行星齿轮减速机构


    Contributors:

    Publication date :

    2023-11-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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