JPH02236004A - Vane-type oscillating actuator - Google Patents

Abstract

PURPOSE:To obtain direct installation of an apparatus on the output side and ensuring a space, which wiring and piping for the apparatus go through, by providing, on a shaft, a vane, which is located at the axial center part and formed into an annular and recessed shape with respect to a cylindrical part, and providing, to a body a stopper and an installing surface, which turns its back to the shaft installing surface. CONSTITUTION:Installing surfaces 1c and 4c turn their backs to each other. Therefore, with one installing surface defined as a fixed surface, an apparatus on the output side can directly be installed to the other installing surface. As a result, the apparatus on the output side can be installed in the form of 'block build'. In addition, since wiring and piping necessary for the apparatus on the output side can go through a cylindrical part 1a, the wiring or piping for the apparatus on the output side does not disturb any assembling work, and a clean appearance can be obtained. Further, by providing a cylindrical part 1a at the axial center part of a shaft 1, where the torque of a vane 3 is small, a decrease in the torque of an oscillating actuator due to the formation of the cylindrical part 1a can be lessened. In addition, since both ends of the vane 3 in the radial direction are supported by both cylindrical part 1a and an outer part 1b, which are formed as an integrated body with the vane 3, the strength of the vane 3 can be made large enough. In addition, since the sealing range can be made small, sealing work can be made simple.

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 equipment such as fluid pressure cylinders, chucks, and valves attached to the output side, so it is necessary to provide a mounting surface facing away from the shaft and body that rotate relative to each other. Therefore, it is desirable to directly mount the output device on one side to the fixed surface of the actuator and on the other side as the mounting surface for the output device.

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-shaped oscillator to which an output side device can be directly attached and which has a space for the output side device's wiring and piping to pass through. The purpose of the present invention is to provide a dynamic actuator.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a vane-type swinging actuator that includes a shaft and a body that are assembled so as to be relatively rotatable, in which the shaft is attached to the body at the axial center. A cylindrical portion for inserting wiring, piping, etc. of the output side equipment extending toward the II!, an annular recess defined by the cylindrical portion and the outer wall, and ! It has a base formed integrally with the seven parts in the radial direction, and a mounting surface on the opposite side of the body,
The body is characterized in that it includes a stopper that defines the recess, and a mounting surface that faces the mounting surface of the shaft.

In addition, in order to solve the same problem, in a vane-type swinging actuator that includes a shaft and a body that are assembled so as to be relatively rotatable, the shaft has an annular recess defined by inner and outer walls, and a diameter The body includes a vane formed integrally with these in the direction, and a mounting surface on the opposite side of the body, and the body includes a stopper that partitions the recess, and an output side device that extends toward the shaft at the axial center. It is preferable to include a cylindrical portion through which wiring, piping, etc. are inserted, and a mounting surface facing backward from the mounting surface of the shaft.

[Function] The shaft and body, which are assembled so that they can rotate relative to each other, have mounting surfaces facing away from each other, so one mounting surface can be used as a fixed surface and the output side equipment can be directly mounted on the other mounting surface. Therefore, it is possible to block build the output side equipment.

In addition, the wiring and piping of the output side equipment are not exposed to the outside by passing them through the cylindrical part provided on the body or shaft, so they do not get in the way of work and the appearance can be kept clean. Since the cylindrical portion is provided at the axial center portion where the torque of the vane is small, the decrease in torque due to the installation of the cylindrical portion can be reduced.

Furthermore, since the vane is formed integrally with the recess, the strength is high and sealing is easy.

[Embodiment] FIGS. 1 and 2 show a first embodiment of the present invention, in which the shaft 1 of this vane-type swinging actuator is cup-shaped, and has an axial center portion protruding from a mounting surface 4c of a body, which will be described later. An annular recess 2 formed by a cylindrical portion 1a and an outer wall 1b and opening in the axial direction, a mounting surface 1c perpendicular to the axis on the opposite side to the opening, and a mounting surface 1c integrally formed in the radial direction of the recess 2. The body 4 includes a bottom wall 4a that covers the opening of the recess 2, a peripheral wall 4b that covers the outer periphery of the outer wall b, a mounting surface 4C perpendicular to the axis, and a bottom wall 4a that covers the opening of the recess 2. A stopper 5 integral with a partitioning bottom wall 4a is provided, and an axial hole 4d through which the cylindrical portion 1a passes is formed at the axial center of the bottom wall 4a. A seal packing 5a is attached to the outer surface of the stopper 5.
are installed on each.

The shaft l and the body 4 are supported by the mounting surfaces 1c and 40 by a bearing 8 installed between the peripheral wall 4b and a bearing holder 7 attached to the tip of the peripheral wall 4b by fixing means such as bolts (not shown). The stopper 5 is inserted into the recess 2 so that it can be rotated relative to the IC, and a mounting plate 9 is mounted on the mounting surface IC with bolts 10.

The recess 2 is divided into a pair of drive chambers 11a and llb by the vane 3 and the stopper 5, and the drive chamber 1
Boats 12 and 12 are provided to supply pressurized fluid to 1a and llb.

Note that the bearing 8 can be a cross roller bearing that receives forces in both radial and thrust directions.

In the first embodiment, by placing the mounting surfaces IC and 40 facing each other, one mounting surface can be used as a fixed surface, and the output side equipment (not shown) can be directly mounted on the other mounting surface. The output side device can be built professionally.

Moreover, since the wiring, piping, etc. necessary for the output side equipment can be inserted into the cylindrical portion 1a, not only the wiring, piping, etc. of the output side equipment do not get in the way of work, but also the appearance can be made neat. Furthermore, by providing the cylindrical portion 1a at the axial center of the shaft 1 where the torque of the vane 3 is small, the decrease in the torque of the swing actuator due to the formation of the cylindrical portion 1a can be reduced.

Further, both radial ends of the vane 3 are connected to a cylindrical portion 1 integrated therewith.
Since it is supported by the pane a and the outer wall 1b, the strength of the pane 3 is high, and since there are few sealing parts, sealing is easy.

Further, since the cylindrical portion 1a is made to protrude from the mounting surface 4C of the body, not only a load can be attached to the cylindrical portion 1a, but also necessary parts such as an angle detection sensor and an angle adjustment mechanism can be added.

In the first embodiment, one mounting surface is fixed and the drive chamber 11 is fixed.
When pressure fluid is supplied to a and Ilb, the shaft 1 and the body 4 rotate relative to each other, and the output device directly attached to the other mounting surface swings. In this case, even if a force in the axial direction of the output side device acts on the actuator, the drive chamber 11a, ll
This can be counteracted by the acting force of the fluid pressure supplied to b.

3 and 4 show a second embodiment of the wooden invention, in which a cup-shaped shaft 14 of this vane-shaped swinging actuator has an annular recess 2 defined by an inner wall 14a and an outer wall +4b on the axis side. , a mounting surface 14c perpendicular to the axis on the opposite side of the opening of the recess 2, and a vane 3 formed integrally with the radial direction of the recess 2, and the vane 3 and the inner wall 14a.
A radial sealing member 16 is attached to the end face on the body l5 side, and the body 15 that covers the opening of the recess 2 has a cylindrical portion 15a extending toward the shaft 14 at the axial center.
, a mounting surface 15b opposite to the mounting surface 14c, and a stopper 5 formed on the body.

The shaft 14 and the body 15 are connected by a bearing 8 installed between a cylindrical body 15a and a bearing holder 7 attached to the tip thereof, so that the mounting surfaces 14c and 15b face each other and the stopper 5 is inserted into the recess 2. The mounting plate 8 is mounted on the mounting surface 14c of the shaft 14 so as to be relatively rotatable.

The other structure and operation of the second embodiment are the same as those of the first embodiment except that the cylindrical portion 15a does not protrude from the mounting surface 14c, so the same reference numerals are given to the main parts in the drawings. Detailed explanation will be omitted.

[Effects of the Invention] The vane type swing actuator of the present invention has mounting surfaces facing away from each other on the shaft and body, which rotate relative to each other, so that an output side device can be directly mounted on either mounting surface. Therefore, it is easy to install the output side equipment and can be built as a block.

In addition, by providing a cylindrical body in the shaft or body for passing the wiring and piping of the output side equipment, the wiring and piping of the output side equipment are not exposed to the outside, so they do not get in the way of work. Moreover, by providing the cylindrical portion at the axis of the actuator, the decrease in torque due to the formation of the cylindrical portion can be reduced.

Furthermore, by providing the vane integrally with the recess, both radial ends of the vane are supported by the wall surfaces of the recess, so the vane is not only a strong cylinder but also easy to seal.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional front view of the first embodiment of the present invention, FIG. 2 is a sectional view taken along line A-A in FIG. 1, FIG. 3 is a longitudinal sectional front view of the second embodiment, and FIG. It is a BB sectional view of. 1.14--Seat 1-7, Ia, 15a* e cylinder part, 1b. 14b-●Outer wall, lc, 4c, 14c, +5b 2 - recess, 4.15@●body, 14a - inner wall.・Mounting surface, ●Vane, ． stopper

Claims (1)

[Claims] 1. In a vane-type swinging actuator that includes a shaft and a body that are assembled so as to be relatively rotatable, the shaft extends toward the body at its axial center, and wiring of an output side device; A cylindrical part for inserting piping, etc., an annular recess defined by the cylindrical part and an outer wall, a vane integrally formed with these in the radial direction of the recess, and a mounting surface on the opposite side of the body. A vane-type rocking actuator, wherein the body includes a stopper that defines the recess, and a mounting surface facing backward from a mounting surface of the shaft. 2. A vane-type swinging actuator including a shaft and a body assembled so as to be relatively rotatable, wherein the shaft is formed integrally with an annular recess defined by inner and outer walls in a radial direction of the recess. and a mounting surface on the opposite side of the body, wherein the body includes a stopper that partitions the recess, and wiring for an output device extending toward the shaft at an axial center portion;
A vane-type rocking actuator, comprising: a cylindrical portion through which piping, etc. is inserted; and a mounting surface facing backward from the mounting surface of the shaft.