JPS58118364A - Intermittent rotation equipment - Google Patents

Abstract

PURPOSE:To provide an intermittent rotation equipment which is not inertially moved despite its bidirectional action, by providing an output shaft between a center shaft, which is turned back and forth, and an outer shaft concentric to the center shaft and rotatable in a prescribed angular range and by connecting the output shaft to both the other shafts through an inner and an outer one-way clutches inverse in the direction of rotation for engagement. CONSTITUTION:An intermittent rotation equipment is first turned as a whole in the forward rotation of a center shaft 22 by an angle alphao. When the equipment is turned by an angle theta, an outer shaft 25 is halted because of the contact of an adjusting screw 36 with a stopper 35 and no torque is transmitted between a one-way clutch 26 and an output shaft 20 but the torque of the center shaft is transmitted to the output shaft through another one-way clutch 23 because these clutches are inverse in the direction of rotation for engagement. The output shaft 20 is furthermore turned by an angle (alphao-theta) by the transmission of the torque. In the backward rotation of the center shaft 22 by an angle alphao, the outer shaft 25 is halted by the stopper 35 after the whole equipment is turned. In the rotation by an angle (alphao-theta) after the halting of the outer shaft 25, the one-way clutch 26 is engaged but the other one-way clutch 23 is disengaged so that the center shaft 22 returns while slipping. As a result, the output shaft 20 is relatively turned in a fixed direction by an angle alpha1=alphao-theta.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an intermittent rotation device that converts reciprocating linear motion or reciprocating rotational motion into intermittent rotational motion.

Conventionally, the motion converting device for woodcutter includes, for example, one using a combination of a claw and a mold wheel as shown in Fig. 1, and one using one one-way clutch as shown in Fig. 1. Various devices are known.

However, the conventional devices have both advantages and disadvantages, and in the case of the combination of the pawl and the mold wheel shown in Fig. 1, the pawl l engages with the teeth of the mold wheel, and when the air cylinder 3 is operated in the direction of the arrow a. The mold wheel rotates with the pivoting of the lever j connected by a chisel, and when the air cylinder J is operated in the direction of the arrow, the pawl l slides on the mold wheel, giving no rotation and causing an intermittent output rotation. However, when the pawl l feeds the mold wheel, in order to prevent the mold wheel from coasting due to its inertial force, the mold wheel must have sufficient resistance to the inertial force, or the mold wheel must coast. It is necessary to provide a brake to stop the

Therefore, there was a drawback that 1111 of the force for sending the model car and the braking force having resistance against inertia were required.

In addition, in the case of using one one-way clutch in Fig. 1, the interlocking movement of the air cylinder J in the direction of the arrow a is applied to the input shaft 7 through the pin tei and the lever j, and the slope of the roller carrier l fixed to the input strip 7 is connected to the input shaft 7. A roller 0 pressed by a spring is sandwiched between the inner periphery of the clutch body ii and gives rotation to the clutch body ii in the direction of the arrow a only when the roller 0 is operated in the direction of the arrow a. The operation in the b direction cannot be transmitted to the clutch body //, but due to the timing,
The problem is that movement can be restricted in the direction in which the clutch engages, but rotation cannot be restricted in the opposite direction.

This invention was made in view of the above-mentioned shortcomings of conventional devices, and aims to provide an intermittent rotating device that is bidirectional and does not coast due to inertia force. An inner one-way clutch and an outer one-way clutch with opposite meshing directions are arranged concentrically on the outer 11111.

Pii is mounted concentrically and rotatably on the inner side 1 of the output shaft.
A central shaft operatively connected to the output shaft via a one-way clutch on the inner side; An intermittent rotation device comprising an outer shaft operatively connected to the output shaft, and a device for imparting rotation to either the spinning center pongee or the outer pusher 1 and preventing or restricting the rotation of the other force. Therefore, the above purpose is achieved.

The invention will now be described with reference to one embodiment shown.

As shown in Fig. 3, 11 radial bearings 2117 are placed inside the hollow output @Ilλ0 (inner diameter 9111), so that
The central shafts here are mounted concentrically and rotatably, and the two central shafts are operatively connected to the output shaft through a one-way clutch 3 on the inside. ! It is now possible to connect. The outer 9111 shaft S is concentrically and rotatably mounted on the outer side (outer diameter circle 1) of the output shaft 20 by means of a radial bearing unit. Output mλ through the outer one-way clutch roller of meshing direction
0 and is operatively connected to form a temple structure. Therefore, inner circumference 1
The outer one-way clutch and the outer one-way clutch may have the same structure except that the direction of engagement force is reversed. A bearing retaining core 11 is attached to the output shaft 11 by a screw gyc to prevent the shaft from being pulled out, and a cuff 2f is fixed to the center shaft by a set screw 30 to prevent the shaft from being pulled out.

In Figures 3 and 3, when the center axis is the input axis, -4 is the fixed part 7 as a device that gives rotation to the center axis.
It is pivoted to the ring holder Jl.

The actuating cylinder JJ with a knuckle on the other end is the arm 34.
1I and is shown attached through the outer shaft
is equipped with a stopper J as a device to prevent or limit its rotation.
It is shown that an adjustment screw J4 is provided which abuts on j.

By configuring as above, the present foreign Confucian axis cos I
I X The inner end of the third screw is the stopper J! By hitting , the angle of one rotation is limited to #0. Operating 7 cylinder J
The reciprocating linear motion of J is applied to the central axis, which is now the input axis, as a reciprocating rotational motion to Kadoya via the arm Jl. Angle α. On the outward journey, the entire device first rotates and the angle is 0.
When you rotate it, the outer axis! is stopped by the adjustment screw J6 hitting the stopper ys), and the one-way clutch λj is rotated between the one-way clutch No.
)2 The meshing is reversed, and the direction of the black arrow in Fig. 5 is the meshing, so the rotation of the input shaft (center shaft - 1) is transmitted to the output shaft (oyc), and the output shaft (J) rotates by α.-〇.Next On the return journey of a, (the direction of one rotation is reversed, the whole sickle rotates by −1, and the outer shaft is stopped by a stopper, but the result is α.

- When rotating by 〇, the one-way clutch 21 is engaged, the one-way clutch J is idling, and the center @ (input shaft) returns while slipping. Therefore, as a result of the A+backward motion, the output shaft will relatively rotate in one direction by α1-α0-〇.

In this way, intermittent rotation is performed in one direction at the angle α1. Outside -] If the axis is fixed, that is, θ = θ, then α1 - α. becomes.

It is also possible to use the outer shaft I as the input shaft and the central shaft I as a fixed or limited rotation shaft, in which case intermittent rotation in the opposite direction is obtained.

Furthermore, both the center axis and the outer axis can be used as input axes.

It is also possible to extract the difference in rotation angle.

As described above, the present invention has a simple structure, performs intermittent rotational motion in both forward and reverse directions, and does not coast.
An intermittent rotating device is obtained.

[Brief explanation of drawings]

Figure w41 shows /f1 of a conventional intermittent rotation device using claws and claws.
FIG. 1 is a plan view schematically showing a conventional intermittent rotation device using a one-way clutch. Figure W4J is a sectional view showing one embodiment of the intermittent rotation device of the present invention, Figure D is a bottom view seen in the direction of arrow 1 in Figure 3, and Figure S
The figure is a cross-sectional view taken along line V-VK in FIG. l...claw, C...type wheel, 7...input shaft, l...roller carrier, 9-...spring, 1O11110-k, ii...clutch body, -0...output shaft. -1, Koge...Radial bearing, -10, Center shaft, Ko J,
-6...One-way clutch, Coj...Outer shaft. 31...Cylinder support, JJ...Operating cylinder, J reference...
Borrowed arm, Jj1111 stopper, JA...adjustment screw. Patent Applicant: Tamagawa Seiki Co., Ltd. Agent: Teru Soga Do Teru Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] An inner one-way clutch and an outer one-way clutch having opposite meshing directions are respectively disposed concentrically on the inner and outer sides of a hollow output shaft; a central shaft operatively connected to the output shaft via an inner one-way clutch; and a central shaft mounted concentrically and rotatably on the outside of the output shaft and operatively connected to the output shaft via the outer one-way clutch. An intermittent rotation device comprising: an outer shaft that can be rotated; and a device that applies rotation to one of the central shaft and the outer shaft and prevents or limits rotation of the other.