JPH02236005A - Vane-type oscillating actuator - Google Patents

Abstract

PURPOSE:To enable direct installation of an apparatus on the output side and ensuring a space, which wiring and piping for the apparatus go through, by providing both a cylindrical shaft, which possesses a vane and an installing surface, and a cylindrical part, which is provided with a body and a flange, both of which rotate relative to the shaft and close both ends of the vane, and a stopper and which opens to the flange. CONSTITUTION:A shaft 1 is of a cylindrical shape and is provided with an installing surface 1a, which intersects the axial line at a right angle, and a vane 2 facing toward the axial center line. Next, the vane 2 are closed at its both ends in the axial direction by both a body 3, which is provided with installing surfaces 1a and 3a turning their backs to each other, and an annular flange 5, while relatively rotating surfaces between the shaft 1 and the body 3 or the flange 5 are sealed with sealing members 6 and 6. In addition, the flange 5 is fixed to the tip of a cylindrical part 3b, which extends in the axial direction along the axial part of the body 3, by means of a nut 4. On the other hand, a stopper 7 is fixed between the body 3 and the flange 5. An apparatus on the output side is directly installed onto the installing surface on one side, while the wiring and piping for the apparatus on the output side can go through the cylindrical part 3b of the body 3. Therefore, the assembling work can be done without any disturbance.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a vane-type swinging actuator.

[Prior art] Swing actuators are often used with fluid pressure devices such as fluid pressure cylinders, chucks, and valves attached to the output side, so mounting surfaces are provided at both ends in the axial direction, and one is used to secure the actuator. with the other side as the mounting surface of the output side equipment.
It is preferable to attach the output side equipment directly.

However, since the shaft of the known swing actuator passes through the body, a coupling, a bearing, etc. are required for mounting and supporting the output side device.

Furthermore, since the wiring, piping, etc. of the output-side equipment exposed to the outside are swung by the swiveling actuator, these not only obstruct the work but also may cause unexpected accidents.

[Problems to be Solved by the Invention] The problems to be solved by the present invention are to provide a vane-type swinging actuator to which an output side device can be directly attached, and through which wiring and piping of the output side device can be inserted. It is about providing.

[A thousand steps to solve the problem] In order to solve the above problem, the vane type swing actuator of the present invention includes a cylindrical shaft having a vane and a mounting surface facing the axis, and a shaft that can rotate relative to the shaft. The body includes a body and a flange that closes both ends of the vane in the axial direction, and a stopper between the body and the flange. The device is characterized in that it includes a cylindrical portion and a mounting surface facing away from the mounting surface of the shaft, and the relative rotation surfaces of the shaft, body, and flange are sealed with a sealing member.

In addition, in order to solve the same problem, we have developed a cylindrical shaft that has a radially facing vane and a mounting plate, through which the wiring and piping of the output side equipment can be inserted, and a shaft that can rotate relative to the shaft. comprising a body and a flange for closing both axial ends of the vane, and a stopper between the body and the flange,
It is preferable that the flange or the body has a mounting surface opposite to the mounting surface of the mounting plate, and the relative rotation surfaces of the shaft, body, and flange are sealed with a sealing member.

Furthermore, it is preferable to provide a protective tube that is loosely inserted into the shaft and has one end fixed to a flange or a mounting surface of the body.

[Function] Since the body or flange and shaft of the swing actuator have mounting surfaces facing away from each other,
One of the mounting surfaces can be fixed and output side equipment can be block-built on the other mounting surface.

In addition, by inserting the wiring and piping of the output side equipment through the cylindrical body or cylindrical shaft provided at the axial center of the body, these are not exposed to the outside, so they do not get in the way of work. , and the appearance can be made neater.

Furthermore, since the relative rotation surfaces of the shaft, body, and flange are sealed with a sealing member, no driving fluid pressure acts on the output side equipment, so that the actuator can be smoothly oscillated.

Furthermore, the protective tube can prevent damage to the wiring and piping due to rotation of the shaft.

[Embodiment] Figures 1 and 2 show a first embodiment of the present invention, in which the shaft 1 in this vane-type swinging actuator has a cylindrical shape, and has a mounting surface 1a perpendicular to the axis and a It is equipped with a vane 2 facing toward the vehicle.

The vane 2 has a mounting surface 3a opposite to the mounting surface 1a.
Both ends in the axial direction are closed by a body 3 having It is fixed by a nut 4 to the tip of a cylindrical portion 3b extending in the axial direction at the axial center of the cylindrical portion 3b. Further, an annular mounting plate 13 is attached to the mounting surface 1a of the shaft l-1. It is fixed by ●.

A stopper 7 is fixed between the body 3 and the flange 5, and the annular space surrounded by the shaft 1, the pod I3 and its cylindrical portion 3b, and the flange 5 is closed by the vane 2 and the stopper 7 to drive chambers 8a, 8b. A pressure fluid supply port (not shown) is opened in the axial direction of the body 3.

In addition, the force covering the outer circumference of POD 3, shaft}l, <-1
0, and the shaft I is relatively rotatably connected to the body 3 by a bearing l2 installed between the cover 10 and a bearing holder 11 at the tip thereof.

In the first embodiment, the mounting surfaces 1a and 3a are placed opposite each other, so that the output side equipment (not shown) is mounted on one mounting surface.
Since it can be directly attached, it is possible to block build the output side equipment.

Moreover, since the wiring and piping of the output side equipment can be inserted through the cylindrical portion 3b of the body 3, not only do they not interfere with the work, but also the appearance can be made neat.

In the first embodiment, one mounting surface is fixed and the drive chamber 8 is
When pressure fluid is supplied to a and 8b, the shaft 1 and the body 3 rotate relative to each other, and the output device directly attached to the other mounting surface rotates and oscillates. In this case, by providing the cylindrical portion 3b at the axial center portion of the vane 2 where the torque is small, it is possible to reduce the reduction in torque of the swing actuator due to the installation plate of the cylindrical portion 3b.

In addition, since the relative rotation surfaces of the shaft 1, body 3, and flange 5 are sealed with the seal members 6, 6, the driving fluid pressure does not act on the output side equipment, so the relative rotation of these is smooth. .

3 to 7 show modified examples of the first embodiment, in which the shaft 21 of this vane/shape rocking actuator has a shaft 21 with a vane 2 oriented toward the axis as shown in FIG. ? Reto 22, ●It is fastened by a thread.

The vane 2 includes a body 23 having a mounting surface 23a,
Both ends in the axial direction are closed by a flange 25 fitted to the tip of a cylindrical portion 23b that is inserted into the shaft 21 and extends in the axial direction at the axial center of the body 23, and the shaft 2l, the body 23, and the flange are closed. The relative rotation surface with respect to 25 is sealed with seal members 6, 6.

A pair of members 27 are provided between the pod 723 and the flange 25.
a. A stopper 27 constituted by a stopper 27a is fixed, and an annular space surrounded by the shaft 21, the body 23 and its cylindrical portion 23b, and the flange 25 is partitioned by the vane 2 and the stopper 27 into drive chambers 8a and 8b. ,
These drive chambers 8a, 8b are connected to a port 28a via circumferential grooves 24a, 24b provided in members 27a, 27a.
, 29b.

A bearing 1 is provided between the tip of the cylindrical portion 23b and the mounting plate 26 fixed to the tip with a pole 26a.
2 is installed, and the shaft 21, the body 23, and the flange 25 are connected to be relatively rotatable by a bearing 12, and an annular shaped Mounting play I
・13 is attached to Porto 14, ・Nyota.

Since the above modification does not have a cover, the structure can be simpler than that of the first embodiment.

Further, since the body 23 is provided with the mounting plate 26 facing away from the mounting surface 23a, necessary parts such as an output side device, an angle detection sensor, an angle adjustment mechanism, etc. can be mounted on the mounting plate 26.

The other configurations and operations of the above modification are the same as those of the first embodiment.

FIG. 8 shows a second embodiment of the present invention in which the shaft 3l is a cylindrical body, and the cylindrical shaft 3l is provided with vanes 2 in the radial direction.

- The vane 2 is closed at both ends in the axial direction by a body 33 and a flange 35 having a mounting surface 35a, and the relative rotation surface between the shaft 3l, the body 33, and the flange 35 is sealed by a sealing member 6. has been done.

A stopper 7 is fixed between the body 33 and the flange 35, and the shaft 31, the body 33, and the flange 35
The annular space surrounded by the vane 2 and the stopper 7 is divided into a pair of drive chambers.

The shaft 31 and the body 33 are connected so as to be relatively rotatable by a bearing 12 installed between the end of the body 33 opposite to the flange 35 and a bearing holder 11 attached to this end, and the shaft 3l is connected to the body side of the shaft 3l. A mounting surface + opposite to the mounting surface 35a is attached to the provided flange 3G.
Mounting plate hl3 having port 14,
・It is fixed by.

Since the operation of the second embodiment is substantially the same as that of the @1 embodiment, detailed explanation will be omitted.

FIG. 9 shows a protective tube 40 loosely inserted into the cylindrical shaft 31 of the second embodiment, and this tube 40 is fixed to the mounting surface 35a of the flange 35 by an enlarged diameter portion 40a.

When the protection tube 40 is loosely inserted into the shaft 31 and the enlarged diameter portion 40a is fixed to the mounting surface 35a, the cylindrical shaft 3
Wiring and piping inserted into shaft 3 rotates and oscillates.
It is possible to prevent contact with l.

[Effects of the Invention] In the vane-type swing actuator of the present invention, the shaft and the body or the flange are provided with mounting surfaces facing away from each other, so an output side device can be directly mounted on one mounting surface. Therefore, it is possible to perform a block build of the output side device.

In addition, by providing a cylindrical part on the shaft or body for passing the wiring and piping necessary for the output side equipment, the wiring and piping of the block-built output side equipment are not exposed to the outside, so these can be It does not interfere with work, and since the cylindrical portion is provided at the axial center, the reduction in torque due to the installation of the cylindrical portion can be reduced.

Furthermore, since the relative rotation surfaces between the shaft, body, and flange are sealed by the sealing member, no driving fluid pressure acts on the output side equipment, so that the actuator swings smoothly.

[Brief explanation of drawings]

Figure 1 is a vertical cross-sectional view of the first embodiment of the present invention, Figure 2 is a cross-sectional view taken along line A-A in Figure 1, Figure 3 is a vertical front view of a modification of the first embodiment, and Figure 4 is the same. 5 is a sectional view taken along line B-B in FIG. 3, FIG. 6 is an exploded view of FIG. 3, FIG. 7 is a sectional view showing the main parts of FIG. 3, and FIG. FIG. 9 is a longitudinal front view of the second embodiment and a cross-sectional view of the protective tube. 1, 21.31 ●Sound shaft la, 3a, 13a, 21a, 23a, 35a a mounting surface, 2 ●Vane, 3.23.33 -Pody 3b, 23b●Φ cylinder part, 5, 25.35 ・Flange, 6 - Seal member, 40... protection tube. (1 other person) q C1111 night 1-

Claims (1)

[Claims] 1. A cylindrical shaft having a vane and a mounting surface facing the axis, a body and a flange that are rotatable relative to the shaft and close both ends of the vane in the axial direction, and a space between the body and the flange. a stopper, the body has a cylindrical portion at the shaft center opening in the flange through which wiring, piping, etc. of an output side device is inserted, and a mounting surface facing away from the mounting surface of the shaft, A vane-type swing actuator, characterized in that the relative rotation surfaces of the shaft, body, and flange are sealed with a sealing member. 2. A cylindrical shaft that has vanes and mounting plates facing in the radial direction, through which the wiring and piping of the output side equipment are inserted, and a body that is rotatable relative to the shaft and that closes both ends of the vane in the axial direction. and a flange, and a stopper between the body and the flange, wherein the flange or the body has a mounting surface opposite to the mounting surface of the mounting plate, and a sealing member that seals a relative rotation surface between the shaft, the body, and the flange. A vane-shaped swinging actuator, which is sealed with. 3. The vane type rocking actuator according to claim 2, further comprising a protective tube that is loosely inserted into the shaft and has one end fixed to a flange or a mounting surface of the body.