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Friction drive and geared motor

A technology of friction transmission and rotating shaft, which is applied in the field of friction transmission and deceleration motor, and can solve the problems of abnormal sound and damage to gears, etc.

Active Publication Date: 2017-04-26
SANKYO SEIKI MFG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, it was found that the vibration would cause abnormal noise and damage to the gears, so it was not ideal.

Method used

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  • Friction drive and geared motor
  • Friction drive and geared motor
  • Friction drive and geared motor

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0064] (Structure of friction transmission)

[0065] figure 1 It is an explanatory diagram of a friction transmission device according to Embodiment 1 of the present invention, figure 1 (a) and (b) respectively show a partial cross-sectional view of a friction transmission device and an explanatory view of a state in which a plate-shaped urging member is fixed to a rotating shaft. In addition, in figure 1 In , the annular member, the cylindrical rotating member, and the plate-shaped urging member in the friction transmission device are shown in cross section. figure 2 It is an explanatory diagram of each component used in the friction transmission device according to Embodiment 1 of the present invention, figure 2 (a), (b), (c), (d), and (e) are a side view of the rotating shaft, a plan view of the rotating shaft viewed from one side (end side) in the axial direction, and a plan view of the ring member, respectively. , a sectional view of the cylindrical rotating memb...

Embodiment approach 2

[0090] Figure 8 is an explanatory diagram to which a friction transmission device according to Embodiment 2 of the present invention is applied, Figure 8 (a) and Figure 8 (b) are a partial cross-sectional view of the friction transmission device and an explanatory view showing a state in which a plate-shaped urging member is fixed to a rotating shaft, respectively. In addition, in Figure 8 In , the ring-shaped member, cylindrical rotating member, and plate-shaped urging member in the friction transmission device are shown in cross section. Figure 9 is an explanatory diagram of each component used in the friction transmission device according to Embodiment 2 of the present invention, Figure 9 (a) is a side view of the rotating shaft, Figure 9 (b) is a plan view of the rotation shaft viewed from one side (tip side) in the axial direction, Figure 9 (c) is a plan view of the annular member, Figure 9 (d) is a sectional view of a cylindrical rotating member, Figure ...

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PUM

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Abstract

Provided are a friction drive device of which a rotary axis is not flexible even if a flat elastic member, inserted into a connection axis unit of the rotary axis, is fixated by the plastic deformation of the connection axis unit; and a geared motor having the friction drive device. In case of the friction drive device (1), the rotation of the rotary axis (2) is transferred to an ordinary rotary member (4) by friction between the flat elastic member (5) and the ordinary rotary member (4), and friction between the ordinary rotary member (4) and a ring type member (3). The ordinary rotary member (4) idles when overload is added to the ordinary rotary member (4). An inner circumference surface of the flat elastic member (5) is pressured towards the other side (L2) by a deformation portion (23a), a plastic deformed circumference of the connection axis unit (23), and an outer circumference surface of the connection axis unit is a spherical rod. In case of the flat elastic member (5), a hanging fitted concave unit is formed on an inner circumference surface of a hole (50) in which the connection axis unit (23) is inserted. Also, the deformation portion (23a) formed by a plastic-deformation is inserted into the hanging fitted concave unit.

Description

technical field [0001] The invention relates to a friction transmission device with a friction mechanism and a reduction motor with the friction transmission device. Background technique [0002] When the rotation of the motor is transmitted through gears, if an excessive load is applied to the driven side, problems such as damage to the gears may occur. Therefore, a structure has been proposed in which a friction mechanism for transmitting power through friction is provided between two rotating members, and when an excessive load is applied, the two rotating members idle (see Patent Document 1). [0003] E.g, Figure 11 The friction transmission device 1x according to the reference example shown in (a) has a rotating shaft 2x, a cylindrical rotating member 4x, and a plate-like urging member 5x, and the rotating shaft 2x passes through a ring fixed in the middle of the axial direction L. The cylindrical member 3x is provided with a supporting surface 31x facing one side L1 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H13/02H02K7/10H02K7/116
CPCF16D7/02H02K7/108F16H1/20H02K7/18H02K15/14
Inventor 五明正人奥原健太郎覃庆国
Owner SANKYO SEIKI MFG CO LTD