JP2560109B2 - Vane swing actuator - Google Patents

Description

The present invention relates to a vane type swing actuator.

[Prior Art] Since swing actuators are often equipped with fluid pressure equipment such as fluid pressure cylinders, chucks, valves, etc. on the output side,
It is desirable that mounting surfaces are provided at both ends in the axial direction, and one of them is used as a fixing surface of the actuator to directly mount the output side device.

However, in the known swing actuator, since the shaft penetrates the body, a coupling, a bearing and the like for mounting and supporting the output side device are required.

Further, the wiring and piping of the output side device exposed to the outside are oscillated by the oscillating actuator, which not only hinders the work but also causes an unexpected accident.

[Problem to be Solved by the Invention] An object to be solved by the present invention is to provide a vane type swing actuator to which an output side device can be directly attached.

[Means for Solving the Problems] In order to solve the above problems, a vane-type swing actuator according to the present invention is provided with a mounting surface orthogonal to an axis, a recessed portion opposite to the mounting surface, and an outer wall of the recessed portion. A first body integrally formed with a vane facing the axis; and a second body integrally formed with a mounting surface orthogonal to the axis and a stopper of the vane. It is characterized in that the respective mounting surfaces are mounted so as to be rotatable relative to each other so that one of the mounting surfaces serves as a mounting surface of the output side device and the other serves as a mounting surface of the body.

Further, in order to insert the wiring and piping of the output side device, in the above vane type swing actuator, the wiring and piping of the output side device which are opened at the mounting surface of the first body at the axial center portion of the second body. It is characterized in that an axial tube portion for inserting the tube is formed.

[Operation and Effect of the Invention] When the first body and the second body are assembled with their mounting surfaces facing each other, the vane-type swing actuator can be assembled and is partitioned by the vane and the stopper. When the pressure fluid is supplied to and discharged from the plurality of drive chambers, the first body and the second body rotate relative to each other.

In this vane type swing actuator, since the vane type swing actuator is assembled by assembling the first body and the second body with their mounting surfaces facing each other, the assembly work is extremely simple. Also, since one of the mounting surfaces of these bodies is the mounting surface of the output side device and the other is the mounting surface of the body, the output side device can be directly block-built on one of the mounting surfaces.
The other side of the mounting surface allows the swing actuator to be mounted on a desired member.

Further, since the vane is provided from the outer wall of the recess toward the axial center, the center of gravity of the first body shifts to the axial center side, so that the rotation of the vane is smooth and the inclination of the first body is small. Less wear and longer life.

In addition, since the fluid pressure that drives the swing actuator acts in the axial direction, it is possible to counter the axial load of the output side device.

Furthermore, since the wiring and piping of the output side device are not exposed to the outside by being inserted into the tubular portion provided in the shaft center portion of the other body, these do not interfere with the work,
Moreover, the external appearance can be made clean, and moreover, since the tubular portion is provided in the axial center portion where the torque of the vane is small, the torque reduction due to the installation of the tubular portion can be reduced.

[Embodiment] FIGS. 1 to 3 show a first embodiment of the present invention, in which a vane-type swing actuator has a concave portion 1a which is opened in the axial direction and a mounting surface which is orthogonal to the axial line opposite to the opening. A first body 1 having 1b, a second body 2 having a mounting surface 2a orthogonal to the axis and covering the opening of the recess 1a, and a body 1 arranged on the outer periphery of the first body 1. And a cover 3 for assembling the and 2 so as to be rotatable relative to each other.

The first body 1 is provided with a vane 5 integrally projecting from the outer wall of the recess 1a toward the axial center, and by the bearings 6 provided on both sides of the flange 1c integrally formed on the outer wall, The second body 2 is rotatably connected to the cover 3, and the second body 2 is provided with a stopper 7 that defines the recess 1a integrally with the body 2 and is attached by an appropriate attachment member such as a bolt (not shown). It is attached to the cover 3 with the surfaces 1b and 2a facing back, the seal packing 7a is attached to the stopper 7, and the relative sliding of the first body 1 and the vanes 5 and the second body 2 is performed. The seal member 10 is mounted on the surface.

Then, the concave portion 1a is divided into a pair of drive chambers 8a and 8b by the vane 5 and the stopper 7, and the second body 2 is
Ports 9 and 9 for supplying pressure fluid to the drive chambers 8a and 8b are opened.

Although not shown, the vane 5 and the stopper 7
You may provide each with two or more.

In the first embodiment, the vane 5 is integrally formed in the recess 1a of the first body 1 and the stopper 7 is integrally formed in the second body 2, so that the mounting surfaces 1b and 2a of the bodies 1 and 2 are mutually formed. Since the vane-type swing actuator is assembled by assembling it so that it can rotate relative to the back, the assembling work is simple.

In addition, since the mounting surfaces 1b and 2a are set back, the output side device can be directly mounted on one mounting surface. Then, by fixing it to the desired member by the other mounting surface, the drive chamber
When the pressure fluid is supplied to 8a and 8b, the output side device can be rotated and rocked. In this case, even if the axial force of the output side device acts on the actuator, the force can be counteracted by the acting force of the fluid pressure supplied to the drive chambers 8a and 8b.

Further, since the vane 5 is provided from the outer wall of the concave portion 1a toward the axial center, the center of gravity of the first body 1 shifts to the axial center side, so that the vane 5 rotates smoothly and the first body 1 rotates.
Since the inclination of is small, the wear is reduced and the life can be extended.

FIG. 4 shows a second embodiment of the present invention, in which the first body 11 in this vane type swing actuator is provided with a recess 11a that is open in the axial direction and a mounting surface 11b opposite to the opening, The body 12 has a mounting surface 12a that is orthogonal to the axis, a cylindrical portion 12b that opens to a mounting surface 11b that is formed in the axial center portion, and a first
It has a peripheral wall 12c that covers the outer periphery of the body 11 of
Is assembled by a bearing 15 arranged between the peripheral wall 12c and the bearing retainer 14 so that the mounting surfaces 11b and 12a face each other so as to be relatively rotatable, and the mounting plate 16 is attached to the mounting surface 11b. It is mounted with mounting screws 17 ,.

Since the other structure of the second embodiment is the same as that of the first embodiment, the same reference numerals are given to the main parts in the drawing, and the detailed description will be omitted.

The bearing 15 may be a cross roller bearing that receives forces in both radial and thrust directions.

In the second embodiment described above, the wiring and piping of the output side device can be inserted into the cylindrical portion 12b of the second body 12, so that the wiring and piping of the output side device do not interfere with the work and the external appearance. Can be refreshed. Also, the cylinder
Since 12b is provided in the axial center portion of the vane 5 where the torque is small, the decrease in torque due to the shape of the tubular portion 12b can be reduced.

Other actions and effects of the second embodiment are the same as those of the first embodiment.

[Brief description of drawings]

1 is a vertical sectional front view of the first embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, FIG. 3 is a side view of the same, and FIG. 4 is a vertical sectional front view of the second embodiment. Is. 1,11 …… First body, 1a, 11a …… Concave, 2,12 …… Second
Body, 1b, 2a, 11b, 12a ... Mounting surface, 5 ... Vane, 7 ... Stopper, 12b ... Cylinder part.

Continuation of the front page (56) Reference JP-A-62-237194 (JP, A) JP-A-48-33279 (JP, A) JP-A-61-127907 (JP, A) Actual development 59-181307 (JP , U) Japanese Patent Publication Sho-46-31592 (JP, B1)

Claims (2)

(57) [Claims] 1. A first body integrally formed with a mounting surface orthogonal to the shaft center, a recess opening on the side opposite to the mounting surface, and a vane facing the shaft center from the outer wall of the recess; A second body integrally formed with a mounting surface orthogonal to and a vane stopper, and these bodies are assembled so that they can rotate relative to each other with their mounting surfaces facing each other. A vane-type swing actuator, wherein one is a mounting surface for an output side device and the other is a mounting surface for the body. 2. A shaft portion of the second body is formed with an axial tube portion which is open in the mounting surface of the first body and which allows the wiring and piping of the output side device to pass therethrough. The vane type swing actuator according to claim 1, wherein the swing actuator is a vane type swing actuator.