JPS61116003A - Rotary drive mechanism - Google Patents

Abstract

PURPOSE:To make it possible to rotate a plurality of rotary members by means of pressure fluid flowing through a pressure-proof tube pipe made of elongatable materials, by laying the pipe along the inner periphery of an annular frame, and by making slide members at the tip ends of the rotary members journalled to the center of the annular frame, into press-contact with the center of the annular frame. CONSTITUTION:A pressure-proof tube pipe 2 provided with pressure fluid inlet and outlet ports 2a, 2b directed toward one side and made of elongatable materials, is arranged along the inner periphery of the annular frame. A plurality of rotary members 5 provided at their front end with sliding members 4 are rotatably journalled to a rotary shaft 3 which is disposed at the center of the annular frame 1. The sliding members 6 are normally made into press- contact with the pressure-proof tube pipe 2, and serve as an actuating section B. Further, by supplying pressure fluid from either one of the input and output ports 2a, 2b, the slide members 4 made in press-contact with the pressure-proof tube pipe 2 are moved by fluid pressure so that the rotary members 5 are continuously rotated.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a rotary motor mechanism, and more particularly, the present invention relates to a rotary motor mechanism, and more specifically, a slider is brought into pressure contact with a pressure-resistant tube made of an elastic material, and the action of a pressure fluid flowing inside the pressure-resistant tube is controlled. This invention relates to a rotational drive mechanism that drives a slide and rotates a rotor.

<Conventional technology> There are many types of motors and pumps that use conventional fluids, but
In many parts, fluid is in direct contact with the rotor or rotating shaft punching mechanism, so fluid leakage from each operating part is unavoidable, resulting in unavoidable drawbacks such as reduced transmission efficiency and fluid replenishment. there were.

<Problems to be Solved by the Invention and Means for Solving the Problems> The present invention aims to solve the above-mentioned drawbacks by filling an integral tube with fluid and utilizing the elasticity of the tube. The purpose is to provide a rotation mechanism in which a pressure-resistant tube made of an elastic material is fixed along the inner periphery of an annular frame, a fluid inlet/outlet is provided in the pressure-resistant tube, and a rotation mechanism is provided in the annular frame. A shaft is installed, and a plurality of rotors each having a pulley at the tip thereof are protruded from the rotating shaft at a predetermined interval toward the inner periphery of the annular frame, and the pulleys are installed in a state in which the pressure-resistant tube is always in pressure contact with the rotor. This rotary drive mechanism is characterized in that a rotor is rotated via a slide by supplying and discharging pressure fluid from the fluid inlet and outlet of the pressure-resistant tube by a necessary means.

<Examples and effects> DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to illustrated embodiments.

FIG. 1 is a plan view illustrating the rotational drive mechanism (A) of the present invention, and the rotational drive mechanism (A) of the present invention is constructed within an annular frame (1) as shown.

A pressure-resistant tube (2) made of a stretchable material is arranged along the inner periphery of the annular frame (1), and the pressure-resistant tube (2) is divided into two parts at the bottom in the figure. That is, an integral pressure-resistant tube (2) is installed in a loop, and the lower part has two pressure fluid inlets and outlets (2m) and (2b). A rotating shaft (3) is installed in the center of the annular frame (1), and a slide (3) is attached to the tip of the rotating shaft (3).
A plurality of rotors (5) with 4) are installed. The above-mentioned slide (4) is formed in a state in which the pressure-resistant tube (2) is always in pressure contact, and constitutes an operating part (B). Re-entrance (2a
) and (2b) are connected to a fluid pressure feeding device (not shown), and by supplying from one and discharging from the other, the actuating part (B) installed in the center is driven. It is something.

The annular frame (1) described above has a pressure fluid inlet/outlet (2a
), (2b), so it is not completely circular,
It looks like it has been partially released. However, in the present invention, it is sufficient to provide the pressure-resistant tube (2) with, for example, two entrances and exits, and it is preferable to provide the entrances and exits by directly penetrating the annular frame (1) and take out the tube member (2) from there. It may be of any shape, and there are other methods of stacking.

In short, it is sufficient that there are two entrances and exits for supply and discharge. Furthermore, the rotor (5) can be controlled by providing another fluid inlet/outlet in the middle of the pressure tube (2).

The pressure-resistant tube (2) has two different entrances and exits, so it looks like it is partially separated, but the operating part (
B) is formed from multiple rotors (5), so even if one of the rotors (5) comes to a distant position, the other rotors (5) will work together to continue frying. It is something that is linked repeatedly. In this case, the number of rotors (5) is small (two rotors are required, and continuous driving is possible if there are two or more rotors).

The present invention ζ has the above-mentioned configuration, and its operation will be explained in detail. First, the inlet/outlet ports (2a) and (2b) of the pressure tube (2) arranged along the inner circumference of the annular frame (1).
When pressure fluid is supplied from either one of the two, the slide (4) that presses against the pressure-resistant tube (2) moves due to the repulsive force as the capacity of the pressure fluid increases.

In addition, the next slide (4) that is in pressure contact also moves, and the pressure fluid is discharged from the other side, completing the -stroke. For example, when pressure fluid is supplied from the fluid inlet/outlet (2a), the pressure fluid increases in a counterclockwise direction before the first slide (4), and the slide (4) that is in pressure contact with the pressure-resistant tube (2) moves in the direction indicated by the solid line arrow. Therefore, the next slide (4) is also one in which the operating part (B) is continuously rotated by the operation of the pressurized fluid and the interlocking rotor (5).

Furthermore, the above-mentioned action is to supply pressurized fluid into the pressure-resistant tube (1) and obtain rotational motion from the rotational shaft, but the reverse of that operation, that is, rotational motion, can be applied via the rotational shaft (3). Of course, it can be used as a pump by pumping fluid.

In addition, it can be rotated clockwise by supplying it from the inlet/outlet (2b) of the pressure-resistant tube (1) and discharging it from the inlet/outlet (2a), and forward and reverse rotation can be performed by simple operation of the pressure fluid.

The pressure-resistant tube (2) is always in pressure contact with at least one of the plurality of slides (4), and therefore must be made of a stretchable material and slip due to the repulsive force of the pressure fluid. Since the tool (4) is driven, the pressure strength of the pressure tube (2) can be adjusted by rotating the load.

Incidentally, since the slide (3) is required to move smoothly, smooth rotation can be obtained by using, for example, a roller with low frictional resistance.

Also, the rotational load force can be adjusted arbitrarily by adjusting the number of rotors, the flow rate of pressure fluid, etc.

Effects> As described above, according to the present invention, in a fluid rotary motor, by supplying pressure fluid into the pressure-resistant tube and utilizing its action, there is no direct contact between the fluid and each operating part. A rotary motor that eliminates fluid leakage from each gap has effects such as improved transmission efficiency.

[Brief explanation of drawings]

FIG. 1 is an explanatory plan view of the present invention, FIG. 2 is a cross-sectional view taken along the line II in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line ■--■ in FIG. In the figure, (A)・Rotary drive mechanism CB) Operating part (1) Annular frame (2) #4 pressure tube (3) Rotating shaft (4) Sliding tool (5) @ board

Claims (1)

[Claims] 1. A pressure-resistant tube made of a stretchable material is fixed along the inner periphery of the annular frame, a fluid inlet and outlet is provided in the pressure-resistant tube, and a rotating shaft is installed in the annular frame,
On the rotating shaft, a plurality of rotors with slides attached to their tips protrude toward the inner periphery of the annular frame at predetermined intervals, and the slides are installed in such a way that they are always in pressure contact with the pressure-resistant tube. A rotary drive mechanism characterized in that a rotor is rotated via a slide by supplying and discharging pressure fluid from a fluid inlet and outlet of a pressure-resistant tube by a necessary means.