JP2023007822A5

JP2023007822A5 -

Info

Publication number: JP2023007822A5
Application number: JP2021110915A
Authority: JP
Filing date: 2021-07-02
Publication date: 2023-09-04

Description

また、クラッチアクチュエータの外径を同じとした場合、駆動カム本体と筒部とがＬ字状に形成された従来の構成と比べ、サンギヤをより内径側に配置できるため、プラネタリギヤの外径を大きくでき、減速機の効率を向上できる。
駆動カム特定形状部は、駆動カム本体の従動カム側の端面に対し従動カム側へ延びるよう形成されている。 In addition, when the outer diameter of the clutch actuator is the same, the sun gear can be arranged closer to the inner diameter than in the conventional configuration in which the drive cam body and the cylindrical portion are formed in an L shape, so the outer diameter of the planetary gear can be increased. can improve the efficiency of the speed reducer.
The drive cam specific shape portion is formed to extend toward the driven cam side with respect to the end face of the drive cam main body on the driven cam side.

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 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 includes an annular drive cam body (41), a drive cam groove (400) formed in the drive cam body so that the cam rolling element can roll, and formed on the outer edge of the drive cam body. has a drive cam specific shape portion (42) that is
The driven cam includes an annular driven cam body (51), a driven cam groove (500) formed in the driven cam body so that the cam rolling element can roll, and formed on the outer edge of the driven cam body. has a driven cam specific shape portion (52),
The drive cam specific shape portion is formed so as to be inclined with respect to the axis of the drive cam body in a cross section along a plane containing the axis (Ax1) of the drive cam body ,
The drive cam specific shape portion is formed to extend toward the driven cam with respect to the end surface of the drive cam main body on the driven cam side.

2. A clutch actuator according to claim 1, wherein said drive cam specific shape portion has an outer peripheral wall and an inner peripheral wall inclined with respect to an axial end face of said drive cam main body.

3. A clutch actuator according to claim 1 or 2 , wherein said driven cam specific shape portion is formed to be inclined with respect to the axis of said driven cam body in a cross section along a plane including the axis (Ax2) of said driven cam body.

The clutch actuator according to any one of claims 1 to 3 , wherein at least part of the speed reducer is provided radially outside of the drive cam main body with respect to the drive cam specific shape portion.

The speed reducer is a planetary gear speed reducer having a sun gear (31) and a planetary gear (32) meshable with the sun gear,
5. A clutch actuator according to claim 4 , wherein at least part of said sun gear or said planetary gear is provided radially outside of said drive cam main body with respect to said drive cam specific shape portion.

6. A clutch actuator according to claim 5 , wherein said sun gear meshes with part of the tooth width of said planetary gear.

The sun gear is formed such that at least a portion of an inner peripheral wall of the sun gear in a cross-section taken along a plane containing the sun gear axis (Ax3) corresponds to the outer peripheral wall of the drive cam specific shape portion and is inclined with respect to the sun gear axis. 7. A clutch actuator according to claim 5 or 6 .

The clutch actuator according to any one of claims 1 to 7 , wherein the reduction gear is a paradox planetary gear reduction gear.