JP2015087005A - Clutch device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clutch device transmitting the rotation torque of a prime motor, which is achieved in space saving by reducing a contour dimension of a rotating part, and satisfies the simplicity of a constitution, the improvement of rigidity, a low price and so forth.SOLUTION: A clutch device has a disc plate 120 fixed to a rotating shaft 111. The clutch device has a rotating body 130 which moves on an output shaft 140, and is movable between an operation position connected to the disc plate 120 and a non-operation position not connected to the disc plate 120. Fitting parts 121 and 131 which are paired for torque transmission are fittingly and relatively formed at regions which mutually correspond to the disc plate 120 and the rotating body 130. The clutch device has holding means for holding the rotating body 130 at the operation position. The clutch device has rotating-body moving means for moving the rotating body 130 to the non-operation position while withstanding an energization force which is generated by the holding means.

Description

The present invention relates to a clutch device.

    Many techniques have been developed for clutch devices. It is well known that the technological development contributes to industrial development. In particular, friction clutches are widely used in automobiles.

  However, in the case of the conventional friction type clutch device, since a friction plate having a large outer diameter is indispensable, it has been difficult to make it compact or save space.

  Therefore, there is a problem that it is difficult to reduce the price because the size of the clutch device and the mechanical members increase.

  As an improvement measure, a “meshing clutch device” shown in Patent Document 1 below is provided. FIG. 5 shows a conventional clutch device of Patent Document 1 (the explanation of the reference numerals in FIG. 5 is omitted by referring to the patent publication). This clutch device also has a problem that it is difficult to make it more compact or save space because the electromagnetic coil is arranged concentrically with the clutch plate as the clutch moving means.

JP-A-9-177833

  Provided is a clutch device that transmits the rotational torque of a prime mover by reducing the outer dimensions of the rotating part, thereby saving space and satisfying the simplicity of structure, improved rigidity, and low cost.

Means for Solving the Invention

The clutch device according to the present invention is characterized by the problem solving means described in the following items 1 to 5 in order to achieve an intended purpose.
<First Item>
A clutch device for connecting a rotating shaft and an output shaft of a prime mover and transmitting torque of the rotating shaft to an output shaft;
Having a disc fixed to the rotating shaft; and
A rotating body that moves on the output shaft and is movable between an operating position connected to the disk and a non-operating position not connected to the disk; and
A pair of fitting portions for transmitting torque are relatively formed on the corresponding portions of the disk and the rotating body so as to be capable of being fitted, and
Having holding means for holding the rotating body in an operating position; and
A clutch device comprising: a rotating body moving means for moving the rotating body to a non-operating position against an urging force of the holding means.
<2nd term>
2. The clutch device according to claim 1, wherein the clutch device includes a pair or a plurality of pairs of fitting portions formed on both the disk and the rotating body.
<Section 3>
As the moving means of the rotating body,
3. An electromagnetic solenoid with a return spring for moving a member that rotates in conjunction with a rotating body to an operating position or to return to an original non-operating position is provided. Clutch device.
<Section 4>
As the moving means of the rotating body,
3. A reciprocating electromagnetic solenoid for moving a member that rotates in conjunction with a rotating body to an operating position or returning to a non-operating position is provided. Clutch device.
<Section 5>
About the fitting part formed in the said disc, and the fitting part formed in the said rotary body, any one fitting part is a male type, The other fitting part The clutch device according to any one of claims 1 to 4, wherein the clutch device is of a female type.

Effect of the invention

  The electromagnetic coil, which is a moving means of the rotating body portion that transmits torque of the clutch device, is arranged outside the rotating body, and the torque transmission is performed by a disc or a rotating body fitting portion so that the outside of the clutch rotating section is outside. It is possible to realize a highly rigid meshing clutch device that can reduce the diameter, further save space, and satisfy the simplicity of construction and low cost.

(A) is sectional drawing which shows one real form of the clutch apparatus which concerns on this invention, (B) is a side view of the rotary body of this invention. It is sectional drawing which shows the state (intermediate position before clutch operation) just before the fitting start of both fitting parts in the clutch apparatus of FIG. It is sectional drawing which shows the clutch operating state in the clutch apparatus of FIG. It is sectional drawing which shows another one embodiment of the clutch apparatus which concerns on this invention. It is sectional drawing which shows the structure of the conventional clutch apparatus.

BEST MODE FOR CARRYING OUT THE INVENTION

  Embodiments of the “clutch device” of the present invention will be described below with reference to the drawings.

  1 to 4 showing the entire structure and parts of the clutch device, the prime mover 110 is generally an electric motor, but may be an internal combustion engine, and a rotating disk 120 is press-fitted into the tip of the rotating shaft 111 or a clamping member not shown. The end surface 122 of the rotating disk 120 is provided with one or more fitting portions 121 serving as torque transmitting members. The fitting portion 121 may be a male shape having an arbitrary shape such as a convex shape (protruding shape), a protruding shape, a raised shape, or a pin shape.

  On the other hand, a rotating body 130 is fitted on the output shaft 140 so as to be movable in the axial direction, and the axial movement and torque transmission are simultaneously performed. Therefore, the output shaft 140 and the central portion 135 of the rotating body 130 constitute a spline shaft and a spline nut. Ball splines are generally used as splines, but square splines and involute splines may be applied.

  The end face 134 on the rotating disk 120 side of the rotating body 130 has one fitting portion 131 for engaging with the fitting portion 121 as a torque transmission member and transmitting torque, corresponding to the fitting portion 121 or one piece. A plurality are provided. The fitting portion 131 may be a female shape having an arbitrary shape such as a concave shape, an indented shape, or a hole shape (hole shape). Further, a groove 132 is provided in the vicinity of the center of the rotating body 130, and a bearing 151 fixed to the member 152 with a pin 150 is rotatably provided on the wall surface 133 of the groove 132 so as to fit in the groove. Yes. The bearing 151 is preferably one whose outer periphery rotates like a ball bearing, but may be a metal or plastic having a low sliding resistance. Further, the member 152 is fixed to the movable shaft 163 at the center of the electromagnetic solenoid 160 with a screw 153.

  Here, the electromagnetic solenoid 160 will be described. The constituent members include a casing 161, an electromagnetic magnet 162, a movable shaft 163, a return spring 165, and a spring receiver 166. A screw 153 that fixes the member 152 to the distal end of the movable shaft 163. A tapped hole is provided.

  FIG. 1 shows a state before the electromagnetic magnet 162 is not energized, and the attraction surface 164 of the movable shaft 163 is separated from the electromagnetic magnet 162 by the extension of the spring 165.

FIG. 3 shows a state after the electromagnet 162 is energized and the attracting surface 164 of the movable shaft 163 is in close contact with the electromagnetic magnet 162 and the spring 165 is compressed.
When the electromagnetic magnet 162 is energized in this way, the moving shaft 163 moves toward the electromagnetic magnet, and when not energized, the moving shaft 163 moves away from the electromagnetic magnet 162 due to the extension of the spring 165.

  Here, the entire operation content of the clutch device 100 will be described.

  FIG. 1 shows a state before the operation of the clutch device, and since the rotating shaft 111 of the prime mover 110 and the output shaft of the clutch device are completely separated, the output shaft 140 does not rotate even when the prime mover 110 rotates. I will not.

When the electromagnetic motor 162 of the electromagnetic solenoid is energized with the prime mover 110 rotated, the moving shaft 163 moves in the direction of the electromagnetic magnet while compressing the spring 165, so that the bearing 151 connected to the member 152 is a groove wall surface of the rotating body 130. By pushing 133, the rotator 130 moves in a direction approaching the disc 120 and enters the state of FIG.

Since the disk 120 is rotating, the fitting part 131 of the rotating body does not immediately fit the fitting part 121 of the disk 120.
Here, the front end of the fitting portion 121 and the end surface 134 of the rotating body are in a sliding state. At this stage, the movable shaft 163 is attracted to the middle by the electromagnetic magnet 162, and the spring 165 is also compressed to the middle.

  When the motor shaft 111 further rotates, the fitting portion 121 of the disc 120 is brought into a position where the phase coincides with the fitting portion 131 of the rotating body 130, and the attracting portion 164 of the movable shaft 163 is completely moved by the electromagnetic magnet 162 as shown in FIG. The spring 165 is compressed to the maximum and the concave portion of the rotating body 130 is fitted into the fitting portion 121 so that the rotational torque of the prime mover 110 is transmitted to the output shaft 140 and the output shaft 140 rotates. That is, when the electromagnetic solenoid is operated while the prime mover 110 is rotating, the rotational torque of the prime mover is transmitted to the output shaft, and the clutch engagement operation is completed.

  When the power transmission between the prime mover 110 and the output shaft 140 is disconnected, the energization of the electromagnetic solenoid 160 to the electromagnetic coil 162 is cut off so that the rotating body 130 moves in a direction away from the disk 120 by the extension force of the spring 165. The part 121 is disengaged from the fitting part 131 of the rotating body 130, and the power transmission between the prime mover and the output shaft is interrupted.

  Another embodiment of the clutch device according to the present invention will be described below.

  In the example of FIG. 1, a male fitting portion 121 is provided as a power transmission member on the disc 120, a female fitting portion 131 is provided on the end surface 134 of one rotating body 130, and the female fitting portion 131 is a male type. Torque is transmitted when coupled so as to cover the fitting portion 121. As shown in FIG. 4, a female fitting portion is provided as the fitting portion 121 on the disc 120 side fixed to the shaft 111 of the prime mover 110. On the contrary, a male fitting portion may be provided as the fitting portion 131 on the rotating body 130 side that moves on the output shaft 140. Since the fitting parts 121 and 131 which are torque transmission members can be easily formed into a sufficiently rigid shape, the transmission torque can be increased even if the outer dimensions of the clutch are reduced.

  The plurality of fitting portions 121 and 131 provided respectively corresponding to the disc 120 and the rotating body 130 may be arranged in a radial pattern.

  About the shape of the fitting part 121 and the fitting part 131 which are torque transmission members, the connection and disconnection of the transmission torque as a clutch device can be smoothly performed by adopting a tapered convex shape or a tapered concave shape. Yes.

  In addition to the electromagnetic solenoid 160, a cylinder that performs linear motion may be provided as a moving unit for the rotating body 130.

  Further, as a means for moving the rotating body 130, the rotating body may be moved via a link mechanism in addition to coupling the electromagnetic solenoid and the member 152. In this case, the capacity of the electromagnetic solenoid can be reduced by a booster mechanism based on the lever action of the link mechanism.

  The clutch device according to the present invention has high industrial applicability because it reduces the outer dimension of the rotating portion and saves space, and has a large transmission torque and satisfies a low price.

100 clutch device 110 prime mover 111 prime mover rotating shaft 120 rotating plate 121 fitting part (male type)
130 Rotating body 131 Fitting part (female type)
140 Output shaft 151 Bearing 160 Electromagnetic solenoid 162 Electromagnetic magnet 163 Movable shaft 165 Spring

Claims (5)

A clutch device for connecting a rotating shaft and an output shaft of a prime mover and transmitting torque of the rotating shaft to an output shaft;
Having a disc fixed to the rotating shaft; and
A rotating body that moves on the output shaft and is movable between an operating position connected to the disk and a non-operating position not connected to the disk; and
A pair of fitting portions for transmitting torque are relatively formed on the corresponding portions of the disk and the rotating body so as to be capable of being fitted, and
Having holding means for holding the rotating body in an operating position; and
A clutch device comprising: a rotating body moving means for moving the rotating body to a non-operating position against an urging force of the holding means. 2. The clutch device according to claim 1, wherein the clutch device includes a pair or a plurality of pairs of fitting portions formed on both the disk and the rotating body. As the moving means of the rotating body,
The clutch according to claim 1 or 2, further comprising an electromagnetic solenoid with a return spring for moving a member that rotates in conjunction with the rotating body to an operating position or returning to an original non-operating position. apparatus. As the moving means of the rotating body,
The clutch according to claim 1 or 2, further comprising a reciprocating electromagnetic solenoid for moving a member that rotates in conjunction with the rotating body to an operating position or to return to a non-operating position. apparatus. About the fitting part formed in the said disc, and the fitting part formed in the said rotary body, any one fitting part is a male type, The other fitting part The clutch device according to any one of claims 1 to 4, wherein is a female type.

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