JPH01266357A - Speed reduction device - Google Patents

Abstract

PURPOSE:To obtain a reduction device of not using gear by engaging the other ends of connecting members one ends of which are attached to respective two one-way clutches pivotally supported on an output shaft and rotating to the same direction. CONSTITUTION:Input shafts 2, 3 introduce rotational output of an electric motor 1 to a reduction device. A first and a second one-way clutches 8, 9 are supported on an output shaft 7 at positions corresponding to eccentric pins 4, 5 and rotate to the same direction. A first lever 10 is attached to the one-way clutch 8 on one end and on the other end, an eccentric pin 4 is made to engage. A second lever 11 is attached to the one-way clutch 9 on one end and on the other end, an eccentric pin 5 is made to engage. In such way, a reduction device of not using gear can be obtained by outputting rotation of the input shaft in reduced rotation to an output shaft by means of ratchet drive of one-way clutch.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention is used for winding a mainspring, etc., and particularly relates to a speed reduction device that performs speed reduction without using gears.

[Conventional technology]

Conventionally, a pinion and a gear, a worm and a worm wheel, a planetary gear mechanism, etc. are generally used as a speed reduction mechanism. Figure 9 shows, for example, a pinion and a gear train used in the 1970s.
This is a speed reduction device disclosed in Japanese Patent No. 30096. In the figure, (2) is the input shaft that supplies rotational force to the reduction gear;
2a) is a pinion provided on the input shaft (2), cAυ is a first stage gear, a spur gear (21a) meshing with the pinion (2a), and a second pinion directly connected to this spur gear (21a). (21b). (Incorporated) is a spur gear meshing with the second pinion (ztb), and (in) is the third pinion, one end of which is integrally connected to spur gear 4. (
7) is the output shaft and meshes with the third pinion 4 via a spur gear).

In a speed reduction device using such a pinion and gear train, rotation from the input shaft is caused by each meshed pinion (2a
), (21b), C13 and spur gear (21a), @,
A deceleration output is output to the output shaft in accordance with the ratio of the number of teeth of H.

[Problem to be solved by the invention]

In the conventional gear train speed reduction device as described above,
In order to obtain a large reduction ratio, it is necessary to connect a large number of gears, making the reduction gear large and complex. When a worm and a worm wheel are used, it is necessary to make the input shaft and the output shaft coaxial. .

[Means to solve the problem]

The speed reduction device according to claim 1 of the present invention includes a pair of input shafts in which eccentric pins having a predetermined eccentric amount are provided on each end face with a rotational phase difference of 180 degrees, and at least two one-way shafts rotating in the same direction. The clutch includes an output shaft for supporting the clutch, and a connecting member having one end attached to each of the one-way clutches and the eccentric pin engaging with each elongated hole provided at the other end.

The speed reduction device according to claim 2 of the present invention includes an input shaft having an eccentric pin having a predetermined eccentricity on an end face, an output shaft supporting at least two one-way clutches rotating in the same direction, and the output shaft. an actuating plate that has a window through which it passes and a long hole that engages with the eccentric pin, and that makes reciprocating motion as the input shaft rotates; The one-way clutch has at least one pair of connecting members that engage with the one-way clutch and have the other end attached to each of the one-way clutches, and perform symmetrical rocking motion due to the reciprocating movement of the actuating plate.

The speed reduction device according to claim 3 of the present invention includes an input shaft having an eccentric pin having a predetermined eccentricity on an end face, an output shaft supporting at least two one-way clutches rotating in the same direction, and the output shaft. an actuating plate that has a window that passes through it and a long hole that engages with the eccentric pin, and that makes reciprocating motion as the input shaft rotates; and an output shaft of the actuating plate that is movable in a direction perpendicular to the direction of the reciprocating movement. It is provided with a connecting member having one end engaged with a pin erected in a position horizontal to the output shaft of the engaging member attached to both sides, and each one-way clutch attached to the other end.

[Effect]

In the structure of claim 1 of the present invention, each of at least two one-way clutches that are supported by the output shaft and rotate in the same direction are attached to eccentric pins that are provided on the end faces of the pair of input shafts with a rotational phase difference of 180 degrees. One end of the connecting member is attached to the other end of the connecting member, and the input shaft is rotated to cause the connecting member to swing, and the one-way clutch is driven to reduce the speed by driving the type wheel to obtain an output.

In the structure of claim 2 of the present invention, one end of each of at least two one-way clutches that are supported by the output shaft and rotate in the same direction is attached to the actuating plate that engages with the eccentric pin provided on the end surface of the input shaft. The other end of the connecting member to which is attached is engaged, and the rotation of the input shaft causes the actuating plate to reciprocate, causing the connecting member that engages with the actuating plate to swing, and deceleration is achieved by driving the model wheel of the one-way clutch. get the output.

In the configuration according to claim 3 of the present invention, the rotation of the input shaft reciprocates the actuating plate that is engaged with the eccentric pin provided on the end surface of the input shaft, and the actuating plate is mounted so as to be movable in a direction perpendicular to the direction of the reciprocating movement. On the pins installed upright on the pair of engaging members,
engaging the other end of the connecting member, one end of which is attached to each of at least two one-way clutches that are supported by the output shaft and rotate in the same direction, and causing the connecting member to swing through the reciprocating movement of the actuating plate; The one-way clutch drives the model car to decelerate and generate output.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

1 to 4 show an embodiment of claim 1, in which FIG. 1 is a perspective view of the speed reduction device, FIG. 2 is a side view of the speed reduction device, and FIG. 3 is an explanation of the operation of this speed reduction device. FIG. 4 is an explanatory diagram showing the dimensional relationship of the operation. In the figure, (6)
(1) is the electric motor attached to the frame (6) (2); (a) is the input shaft that introduces the rotational output of the electric motor (1) to the reduction gear; (4).

(5) is a first eccentric pin and a second eccentric pin that are provided on each end face of the input shafts (2) and (3) and have an eccentricity of 0 during rotation and a rotational phase difference of 180 degrees; ) is the input shaft (
2).

The output shaft is supported coaxially with (3) and at a predetermined position of the frame (6) with an eccentricity of 0 or more from the input shafts (2) and (3), and (8) and (9) are the outputs. First and second one-way clutches, QQ, which rotate in the same direction and are supported at positions corresponding to eccentric pins (4) and (5) on the shaft (7);
is a connecting member having one end attached to the first one-way clutch (8) and the other end having a long hole in the direction of connecting the output shaft (7) and the input shaft (2) that engage with the eccentric pin (4). 1st
The lever (b) has one end connected to the second one-way clutch (
9) and has a long hole in the direction connecting the output shaft (7) and the input shaft (3) at the other end that engages with the eccentric pin (5). (4), (5
) and lever αQ.

This is a retaining ring to prevent Qυ from coming out of engagement.

In the speed reduction device configured as described above, the electric motor (1)
By driving the input shafts (2) and (3), the first eccentric pin (4) and the second eccentric pin (5) perform symmetrical rotation with a phase difference of 180 degrees, and the levers OQ, (B) is the output shaft (
7) and the input shafts (2) and (3). As a result, the first one-way clutch (3) transmits rotational force in the direction of arrow (q) to the output shaft (7) when the first lever 00 moves in the direction of arrow (c), and idles when moving in the direction of arrow (uniform). The second one-way clutch (9) transmits the rotational force in the direction of arrow (q) to the output shaft (7) when the second lever αυ moves in the direction of arrow (c), and idles when it moves in the direction of arrow @. .Therefore, the output shaft (7
) indicates the arrow (it is possible to obtain a decelerated rotational output with some pulsation in the q direction. In this case, the input shaft (2)
(3) and the output shaft (7), the eccentricity of the eccentric pins (4) and (5) is η, and the distance between the input shafts (2), (3) and the output shaft (7) is 0, and if the output shaft (7) rotates once when the input shaft (2/, (3)) rotates N, then 2d≠
Nx2XD is established and N #yr L/D becomes the reduction ratio G
='/N≠''/r L. Therefore, by appropriately setting the eccentricity 0 and the distance between the output shaft (7) and the input shafts (2) and (3), a desired reduction ratio can be obtained.

5 to 7 show an embodiment of claim 2, in which FIG. 5 is a perspective view of the speed reduction device, FIG. 6 is a side view of the speed reduction device, and FIG. 7 is an operation explanatory diagram.

In the figure, (1), (2), (4), (6) to (
9) is the same as that described in the embodiment of claim 1 above. (to) has a window hole through which the output shaft (7) passes, and the output shaft (7) and input shaft (2) engage with the eccentric pin (4).
The actuating plate has a long hole (13a) perpendicular to the line connecting them, and reciprocates up and down when the input shaft (2) rotates, and the operating plate (to) is horizontal to the output shaft (7). Pins (c) are installed on both sides of the output shaft (7) at equal positions on both sides sandwiching the output shaft (7) and at equal positions with a length of zero eccentricity or more, one end of which is attached to the first one-way clutch (8). The other end is a first lever as a connecting member that has a long groove in the direction of the first one-way clutch (8) that the pin Q4 engages with, and Qf9 has one end attached to the second one-way clutch (9) and the other end attached to the second one-way clutch (9). pin α
◆ is the second lever as a connecting member having a long groove in the direction of the second one-way clutch (9) to be engaged, αη is the pin α
◆ and lever αQ.

This is a retaining ring to prevent al19 from coming out of engagement.

In the speed reduction device configured as described above, the electric motor (1
) is driven to reciprocate the actuating plate (to) via the eccentric pin (4), and swing the lever (to), QQ, which engages with the pin α◆ provided upright on the actuating plate (2). Due to this rocking motion, the first one-way clutch (8) transmits a rotational force in the direction of arrow 0 to the output shaft (7) when the lever (G) moves in the direction of arrow (C), and when it moves in the direction of arrow (C) is idling.

Further, the second one-way clutch (9) rotates idly when the lever qQ moves in the direction of arrow (C), and transmits the rotational force in the direction of arrow 0 to the output shaft (7) when it moves in the direction of arrow (C). Therefore, the output shaft (7) can obtain a decelerated rotational output with some pulsation in the direction of arrow 0.

The reduction ratio of the input shaft (2) and the output shaft (7) in this embodiment is 0, assuming that the eccentricity of the eccentric pin (4) is 0, and the distance between the output shaft (7) and the pin α4 is υ. Similar to the explanation of G
-D/rL.

FIG. 8 is a perspective view of a speed reduction device showing an embodiment of claim 3. In the figure, (1), (2), (4), (6
(9), Q3. ((B).

α - αη are the same as those described in the embodiment of claim 2 above. (13C) is a long hole provided on both upper and lower sides of the actuating plate, the longitudinal direction of which is perpendicular to the reciprocating direction;
G), Q is equal on both sides from the output shaft (7), and is spaced apart from the length of 0 eccentricity by screws (1
) are installed in the first and second engaging members, and are erected in a position horizontal to the output shaft (7) so that the pins αΦ are facing each other, and the first engaging member (t) A long groove (of the first lever) engages with the vertically provided pin α◆, and a second lever α・
The long grooves are engaged.

In the speed reduction gear configured as described above, the input shaft (
2) The rotation of the output shaft (7) (not visible in the diagram)
The operation of decelerating and outputting is the same as that described in claim 2 above. In this embodiment, the first and second engaging members (T)
, Set the installation distance from the Qcl output shaft (7) to the elongated hole (13
By moving along C), the reduction ratio can be changed.

〔Effect of the invention〕

As explained above, in claim 1, this invention includes:
A pair of eccentric pins provided on the end faces of a pair of input shafts with a rotational phase difference of 180 degrees support two shafts rotating in the same direction that are supported by the output shaft.
In claim 2, the output shaft of the actuating plate engaged with the eccentric pin provided on the end face of the input shaft is engaged with the other end of the connecting member having one end attached to each of the one-way clutches. The other end of the coupling member, one end of which is attached to each of two one-way clutches that rotate in the same direction and are supported on both sides of the input shaft and the output shaft, is engaged with the other end of the coupling member. A pair of engagement members installed on both sides sandwiching the output shaft of the actuating plate engaged with the eccentric pin, and two pins supported by the output shaft and rotating in the same direction.
One end of each of the one-way clutches is attached to the other end of the connecting member, and the rotation of the input shaft is converted into a swinging motion of the swinging member via the eccentric pin. A speed reduction device that does not use gears can be obtained by outputting decelerated rotation to the output shaft by driving the mold wheel.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a speed reduction device showing an embodiment of claim 1 of the present invention, FIG. 2 is a side view of the speed reduction device of the embodiment of claim 1, and FIG. An explanatory diagram of the operation of the device,
FIG. 4 is an explanatory diagram showing the dimensional relationship of operation, FIG. 5 is a perspective view of a reduction gear device showing an embodiment of claim 2' of the present invention, and FIG.
The figure is a side view of the speed reduction device according to the embodiment of claim 2, FIG. 7 is an explanatory diagram of the operation of the speed reduction device according to the embodiment of claim 2, and FIG. 8 is the speed reduction device showing the embodiment of claim 3 of the present invention. Perspective view of No. 9
The figure is a side view showing a conventional speed reduction device. In the figure, (2) and (3) are the input shafts, (4) and (5
) is the eccentric pin, (7) is the output shaft % (s), (9)
is a one-way clutch, (10゜αη, (to), αQ is a lever as a swinging member, (to) is an actuation plate, Q◆ is a pin, (g) and α are engagement members. In the figures, the same reference numerals indicate the same or corresponding parts.

Claims (3)

[Claims] (1) There are 18 eccentric pins with a predetermined eccentricity on each end surface.
A pair of input shafts are provided with a rotational phase difference of 0 degrees, an output shaft supports at least two one-way clutches rotating in the same direction, one end is attached to each of the one-way clutches, and the other end is attached to each of the one-way clutches. A speed reduction device comprising a connecting member whose elongated hole engages each of the eccentric pins and whose length from the center of the output shaft to the engaging portion is longer than the eccentric amount. (2) An input shaft having an eccentric pin with a predetermined amount of eccentricity on its end face, an output shaft supporting at least two one-way clutches rotating in the same direction, a window through which this output shaft passes, and engagement with the eccentric pin. an actuating plate having an elongated hole and reciprocating as the input shaft rotates; one end engages the actuating plate at a position perpendicular to the reciprocating direction and horizontal to the output shaft; the other end engages the one-way clutch; at least one pair of connecting members that are attached to each of the output shafts and have a length from the center of the output shaft to the engaging portion that is longer than the eccentricity amount, and that perform symmetrical rocking motion due to the reciprocating motion of the actuating plate. Characteristic deceleration device. (3) An input shaft having an eccentric pin with a predetermined amount of eccentricity on its end face, an output shaft supporting at least two one-way clutches rotating in the same direction, a window through which this output shaft passes, and engagement with the eccentric pin. an actuating plate having an elongated hole and performing reciprocating motion by rotation of the input shaft; the actuating plate is mounted across the output shaft of the actuating plate so as to be movable in a direction perpendicular to the direction of the reciprocating motion; the actuating plate is mounted at a position horizontal to the output shaft; A pair of engaging members each having an upright pin, one end engaged with the pin and the other end attached to each of the one-way clutches, the length from the center of the output shaft to the engaging portion being eccentric. 1. A deceleration device comprising at least a pair of connecting members that are longer than the distance and that perform symmetrical rocking motion due to the reciprocating motion of the actuating plate.