JP2023020488A5

JP2023020488A5 -

Info

Publication number: JP2023020488A5
Application number: JP2021125874A
Authority: JP
Filing date: 2021-07-30
Publication date: 2023-09-04

Description

キャリアは、第１リングギヤの軸方向において、第１リングギヤの軸方向の長さ（Ｌ１）の範囲内に設けられている。そのため、第１リングギヤの軸方向における減速機の長さを小さくでき、クラッチアクチュエータの軸方向の体格を小さくできる。
トルクカムは、電動モータからのトルクが入力されるとハウジングに対し相対回転する駆動カム（４０）、駆動カムがハウジングに対し相対回転するとハウジングに対し軸方向に相対移動する従動カム（５０）、および、駆動カムと従動カムとの間で転動するカム転動体（３）を有する。駆動カムは、環状の駆動カム本体（４１）、および、カム転動体が転動可能なよう駆動カムの周方向に延びるよう駆動カム本体に形成された駆動カム溝（４００）を有する。キャリアは、駆動カム本体の軸方向において、駆動カム本体の軸方向の長さの範囲内に設けられている。 The carrier is provided within the axial length (L1) of the first ring gear in the axial direction of the first ring gear. Therefore, the length of the speed reducer in the axial direction of the first ring gear can be reduced, and the size of the clutch actuator in the axial direction can be reduced.
The torque cam includes a drive cam (40) that rotates relative to the housing when torque is input from the electric motor, a driven cam (50) that moves relative to the housing in the axial direction when the drive cam rotates relative to the housing, and , has a cam rolling element (3) that rolls between the drive cam and the driven cam. The drive cam has an annular drive cam body (41) and a drive cam groove (400) formed in the drive cam body extending in the circumferential direction of the drive cam so that the cam rolling element can roll. The carrier is provided within the axial length of the drive cam body in the axial direction of the drive cam body.

Claims

an engagement state between the first transmission portion (61) and the second transmission portion (62) that are capable of relative rotation, allowing transmission of torque between the first transmission portion and the second transmission portion; A clutch actuator (1) for use in a clutch device (1) comprising a clutch (70) that changes between a disengaged state and a disengaged state that interrupts transmission of torque between a first transmission section and a second transmission section. ,
a housing (12);
an electric motor (20) provided in the housing and capable of outputting torque when energized;
a speed reducer (30) capable of reducing and outputting torque from the electric motor;
a torque cam (2) capable of converting rotational motion due to torque from the speed reducer into translational motion, which is axial relative movement with respect to the housing, and changing the state of the clutch to an engaged state or a disengaged state; with
The speed reducer is
a sun gear (31) to which torque from the electric motor is input;
a planetary gear (32) that can revolve in a circumferential direction of the sun gear while meshing with the sun gear and rotating on its axis;
an annular carrier (33) that rotatably supports the planetary gear and is rotatable relative to the sun gear;
an annular first ring gear (34) meshable with the planetary gear; and
An annular second ring gear (35) that can be meshed with the planetary gear, is formed to have a number of teeth different from that of the first ring gear, and outputs torque to the torque cam;
The carrier is provided within a range of the axial length (L1) of the first ring gear in the axial direction of the first ring gear ,
The torque cam includes a drive cam (40) that rotates relative to the housing when torque is input from the electric motor, and a driven cam that moves axially relative to the housing when the drive cam rotates relative to the housing. a cam (50) and a cam rolling element (3) that rolls between the driving cam and the driven cam;
The drive cam has an annular drive cam body (41) and a drive cam groove (400) formed in the drive cam body so as to extend in the circumferential direction of the drive cam so that the cam rolling element can roll. have
The carrier is provided within an axial length range of the drive cam body in the axial direction of the drive cam body .

2. A clutch actuator according to claim 1, wherein said drive cam body is provided within a range of axial length of said first ring gear in the axial direction of said first ring gear.

3. A clutch actuator according to claim 1, wherein said first ring gear is fixed to said housing by press fitting.

4. A clutch actuator according to claim 3 , wherein said carrier is provided within a press fitting width (W1) of said first ring gear with respect to said housing in the axial direction of said first ring gear.

The carrier has one annular carrier body (331) provided on one side in the axial direction with respect to the planetary gear,
A clutch actuator according to any one of claims 1 to 4 , wherein said speed reducer further comprises a pin (335) connected to said carrier body and rotatably supporting said planetary gear.

The clutch actuator according to any one of claims 1 to 5 , wherein the first ring gear meshes with a part of the planetary gear in the tooth width direction.