KR200259705Y1 - hydrauric and air screw motor - Google Patents

Abstract

The present invention relates to a motor, and more specifically, by using the rotation of the rotary rotor rotated by the supplied air or oil to enable the precise transfer of machinery, etc., for this purpose the present invention is provided with a rotary rotor In the motor in which the rotational force is generated in the rotary rotor by the supplied air or oil, the eccentrically positioned in the cylinder 100, the outer surface is formed with a plurality of blade pieces 310 are inserted and inserted into the center shaft portion through which the female screw A rotating rotor 300 formed; A screw 400 fastened to a female screw portion formed in the rotary rotor 300 by a screw coupling method and moving relative to the rotary rotor 300 in accordance with the rotation of the rotary rotor; The cover 200 is fixedly coupled to the left and right ends of the cylinder 100 to block the rotary rotor from the outside and provided with the inlet 210 and the outlet 220 of the fluid; The present invention relates to a pneumatic pneumatic screw motor, in which the screw is conveyed or moved while the rotary rotor is rotated.

Description

Hydraulic and air screw motor

The present invention relates to a pneumatic screw motor using air or oil that can be safely used in the handling of highly flammable materials such as precision transfer, various valve opening and closing devices, and chemical plants using a motor.

In particular, air motors are widely used in various industrial fields, for example, grinding such as an air grinder. It is commonly used for industrial instruments used for grinding work or medical instruments applied to dental handpieces.

That is, the air motor is a device that can perform grinding, polishing or fastening by a tool mechanically connected to the rotor by providing a high-pressure air to the stator in which the rotor is installed to rotate the rotor at high speed. .

1 shows a schematic cross-sectional view of the prior art, and the air motor 1 has a stator in which an eccentrically processed rotor blade 5 which floats from a groove 4 formed on the outer circumferential surface of the rotor 3 by centrifugal force is formed. It is configured to obtain a strong torque by rotating along the inner circumferential surface of (2).

For the understanding of the structure of the air motor will be described with respect to the air motor of the application No. 10-1999-0054362 with reference to FIG. In order to simplify the structure, reduce the processing cost, and reduce the weight, the air motor is disposed by eccentrically placing a cylindrical cylinder inserted in the upper and lower hard plates in the main body constituting the air motor, and the inner wall of the main body inner wall and the outer wall of the cylinder. The stator 11 is disposed in the space 10 formed therebetween, and the stator 11 is provided with a passage 13 for communicating air from the introduction port 2 formed in the main body to the introduction hole on the cylinder side. An O-ring (13a) for maintaining the airtightness of the passage is arranged around the entrance and exit of the passage.

As described above, the air motor according to the related art is applied to a rotary tool, and so far, it has not been conceived to generate a transfer using the air motor. Air motors have the characteristics of preventing sparks or short circuits by not using direct electricity. However, in general, air motors are used in transfer systems such as mechanical devices installed in chemical plants that handle highly flammable materials. There was a problem that a safety accident occurred by applying it, causing a loss of life or property.

Therefore, the present invention devised to solve the above problems is an object of the present invention to provide a precise conveying device using a pneumatic motor.

In addition, the bar can be used in machine tools and various valve opening and closing devices, which enables precise transportation and fluid transportation.

1-a schematic cross-sectional view of an air motor according to the prior art.

2-exploded perspective view of an air motor according to the prior art.

3-schematic cross-sectional view of a pneumatic screw motor according to the present invention.

Figure 4-Schematic appearance of the pneumatic screw motor according to the first embodiment of the present invention.

5-Detail view of the medial side for the cover.

6-one side view of the cylinder;

7-schematic perspective view of a rotating rotor.

8-a detailed view of the wing piece.

9-another structure of the wing piece.

10 is a view showing another embodiment of the present invention.

<Description of Major Symbols Used in Drawings>

100: cylinder 110: eccentric hole

120: fluid hole 120a: upper fluid hole

120b: lower fluid hole 121: discharge hole

200: cover 210: inlet

211: Inlet 212: First branch

213: Second Branch 214: Third Branch

215: Branch 4 216: Main Supply Home

217: auxiliary supply groove 220: outlet

225: discharge controller 300: rotary rotor

310: wing piece 320: support shaft

330: Insertion groove 340: Female thread

350: spring 400: screw

410: hollow hole 420: nozzle

The present invention for achieving the above object, in the motor is provided with a rotary rotor and the rotational force is generated in the rotary rotor by the supplied air or oil, is located eccentrically in the cylinder and a plurality of blade pieces are formed on the outer surface A rotating rotor having a female thread formed therein; Screws are fastened to the female screw portion formed in the rotary rotor by a screw coupling method and relative movement in accordance with the rotation of the rotary rotor; while being fixed to the left and right ends of the cylinder to block the rotary rotor from the outside and the inlet and outlet are provided It is configured to include a; and relates to a pneumatic screw motor having a technical subject that the screw is transferred or moved while the rotary rotor is rotated in accordance with the restriction of the cover and the screw.

The hydraulic pneumatic screw motor according to the present invention has the advantage of being able to control the precise feeding amount by applying to the transfer device, switchgear or machine tool of various industrial facilities, and transfer to the place handling the flammable material such as chemical plant Application to the system has the advantage that it is possible to prevent accidents such as explosions in advance.

3 is a schematic cross-sectional view of a pneumatic screw motor according to the present invention, which is composed of a cylinder 100, a cover 200, a rotating rotor 300, and a screw 400, and the rotating rotor 300 of FIG. Relative movement with the screw 400 coupled to the rotary rotor by the rotation is the transfer of the screw or the transfer of the cylinder and cover including the rotary rotor.

The rotary rotor 300 is moved together with the cylinder 100 and the cover 200 and the screw 400 is moved independently. That is, in the pneumatic screw motor according to the present invention by rotating the rotary rotor 300 in a state in which any one of the screw 400 or the cylinder 100 is fixed, the unconstrained portion can be moved in the horizontal direction left and right. Will be structured.

Hereinafter will be described in detail for the preferred embodiment according to the present invention.

<First Embodiment>

4 is a view illustrating a schematic appearance of the pneumatic screw motor according to the first embodiment of the present invention, and FIG. 5 is a detailed side view of the cover.

3 to 5, the cover 200 is mounted on the left and right sides of the cylinder 100, and a rotating rotor 300 is installed therein, and a screw 400 is coupled to the center of the rotating rotor 300. Lose. A female thread 340 is formed at the center of the rotary rotor 300, and the screw 400 is fastened thereto.

First, the cylinder will be described and attached FIG. 6 shows one side of the cylinder. As shown in the drawing, the cylinder 100 has a rectangular appearance and is provided with an eccentric hole 110 formed eccentrically therein, and fluid holes 120 penetrating upward and downward of the eccentric hole 110 are formed, respectively. . Two fluid holes are formed on the upper and left sides and one fluid hole is formed on the lower side. What is formed in the upper side will be referred to as the upper fluid hole (120a) and what is formed in the lower side will be referred to as the lower fluid hole (120b).

The upper fluid hole 120a functions to supply air or oil introduced into one side of the cover 200, which will be described later, to the opposite cover, and the upper fluid hole 120a formed on the left side of the drawing may counterclockwise rotate the rotor. When it is rotated by the air or oil flows in and the upper fluid hole formed on the right side is the air or oil is supplied when the rotary rotor is rotated clockwise.

In addition, the lower fluid hole 120b functions as a discharge path for discharging air or oil after rotating the rotary rotor 300 to the outside, and air or oil is lower fluid hole 120b from the inside of the cylinder 100. There is also provided a discharge hole 121 to function to fall out.

Next, a cover coupled to both left and right ends of the cylinder will be described, and FIG. 5 shows a detailed view of the cover. In FIG. 5, a (a) shows the left cover 200a in FIG. 3, and the b (b) shows the right cover 200b.

Air or oil is supplied through the upper side of the left cover (200a) and separated to the left and right can be selectively supplied air or oil and is distributed along the branch pipe. That is, the inlet 210 is formed in the upper left and right sides of the left cover (200a) is the inlet 211, the first branch pipe 212, the second branch pipe 213, the first inlet of high pressure air or oil from the outside The tri-branch pipe 214 and the fourth branch pipe 215 and the main supply groove 216 and the auxiliary supply groove (217).

The first branch pipe 212 is to supply air or oil to the fluid hole (120a) formed in the upper portion of the cylinder 100 to send air or oil to the inlet 210 of the opposite cover, the second branch pipe ( 213 serves to distribute air or oil to the third branch pipe 214 and the fourth branch pipe 215. Air or oil supplied to the third branch pipe 214 is injected through the main supply groove 216 to press the blade piece 310 formed in the rotary rotor 300 to rotate the rotary rotor. On the other hand, the air or oil supplied to the fourth branch pipe 215 is introduced into the lower surface of the wing piece 310 is pushed so that the wing piece is floating.

The main supply groove 216 and the auxiliary supply groove 217 are formed on the inner surface of the left cover 200a and are formed in two stages in the form of right and left symmetry. When the cylinder 100 and the cover 200 are fastened and air or oil is supplied through the third branch pipe 214, the air or the air is supplied to the blade 310 of the rotary rotor 300 through the main supply groove 216. As the oil flows in and the area of the wing piece increases toward the lower side, the rotary rotor rotates counterclockwise. On the other hand, the air or oil supplied through the fourth branch pipe 215 flows into the lower surface of the wing piece 310 inserted into the rotary rotor 300 through the auxiliary supply groove 217 so that the wing piece floats. do.

And the lower portion of the left cover (200a) discharge port 220 to the air or oil discharged from the inside of the cylinder 100 through the fluid hole (120b) formed in the lower portion of the cylinder to be discharged to the outside Is formed. The discharge port 220 is attached to the discharge controller 225 that can adjust the amount of air or oil discharged. The discharge controller 225 is fastened to the cover 200 by a screw coupling method and can adjust the opening and closing degree of the outlet opening to the outside.

The structure of the cover formed on the left side has been described above, and the right cover has the same structure except for the introduction port, and thus the description thereof will be omitted. And it is preferable to install a sealing material in the coupling portion of the cylinder and the cover so that a complete sealing can be made.

Next, the rotary rotor 300 will be described. Attached Figure 7 shows a schematic perspective view of the rotary rotor and the support shaft 320 protruding from both side center portion is formed. And the outer peripheral surface is inserted into the insertion groove 330, which can be inserted into the blade piece 310 at equal intervals and the rotation is made in the inner space formed by the cylinder 100 and the cover 200. A female thread 340 is formed at the center of the rotary rotor 300, and a screw 400 corresponding thereto is coupled thereto. The blade 310 is rotated by the rotation rotor 300 is changed to the extent that the protruding as the position is changed, the maximum protruding from the bottom of the cylinder 100 and the top is completely fitted to the rotary rotor.

That is, the cylinder 100 and the rotary rotor 300 are coupled while having a different center axis, whereby the wing piece 310 inserted into the rotary rotor 300 is protruded depending on the position.

Subsequently, FIG. 8 shows a detailed view of the wing piece 310, and both ends of the lower side are rounded to form air or oil discharged through the auxiliary supply groove 217 formed in the cover 200. It is desirable to form a structure that can flow into the lower surface.

In addition, Figure 9 shows the structure of the wing piece is preferably used when using the oil as a fluid for driving the rotary rotor and the bottom surface of the insertion groove 330 of the rotary rotor 300 and the lower surface of the wing piece 310 The spring 350 is configured to be restrained by an elastic member. When oil is used, the viscosity of oil is higher than that of air, so the oil supply speed is slow. Therefore, it is preferable to fasten the blade piece 310 to the rotary rotor 300 and the spring 350 so that the blade piece 310 can be quickly exited.

In addition, the support shaft 320 of the rotary rotor 300 is provided with a rotation speed and a rotation angle detection plate 325 and correspondingly provided with a rotation speed and rotation angle detection sensor 326. This is to measure the rotation angle and the number of rotation of the rotary rotor to enable precise control. The rotary rotor is rotated according to the preset value, thereby controlling the feeding amount of the screw and also controlling the left and right feed. do. The electronic control as described above is a general known technology, and further description thereof will be omitted.

Next, the screw 400 coupled to the rotary rotor 300 will be described. The screw 400 is moved left and right by the rotation of the rotary rotor 300, or in a state in which the screw is fixed and the cylinder and the cover are free to guide the cylinder and the cover while the rotating rotor is rotated It can also be configured to perform a function.

Second Embodiment

Hereinafter will be described with reference to Figure 10 attached to the second embodiment according to the present invention. According to the second embodiment of the present invention to form a hollow hole 410 in the center axis of the screw 400. By forming the hollow hole 410 in the screw 400 it is possible to increase the bending rigidity of the screw 400 and to supply the fluid through the hollow hole 410. That is, the nozzle 420 is formed at the end of the screw 400, and a material such as a silicon liquid is injected to move the injection to a specific part while moving.

As shown in FIG. 10, a gear 327 may be formed on the support shaft 320 of the rotary rotor 300 to allow the screw to be transferred from side to side and at the same time output the rotational force.

In the above first and second embodiments, the rotary rotor is driven to be realized through high pressure air or oil, and a separate oil storage tank (not shown) may be used to circulate the oil when the oil is used. Have it ready.

Hereinafter will be described the operating relationship of the pneumatic screw motor according to the present invention. The cylinder 100 and the cover 200 in which the rotary rotor 300 is built are fixed and the screw 400 is formed to be able to move left and right. When the rotary rotor 300 is rotated under the above conditions, the screw 400 coupled thereto is moved left or right according to the rotation direction of the rotary rotor.

The operation of the inflow path of the air or oil and the operation of the rotary rotor are the same as in the above-described embodiment. The pneumatic pneumatic screw motor according to the present invention can precisely control the feeding amount, because it is possible to adjust the amount of advance of the screw coupled thereto by adjusting the rotation speed of the rotary rotor and more precisely by controlling the rotation angle.

That is, the screw is moved forward and backward by 1 pitch per rotation of the rotor, for example, if the pitch distance of the screw to 1 millimeter (mm), the screw is moved by 1 millimeter (mm) during the rotation of the rotary rotor. More precisely, by using the rotation angle sensor Being able to control degrees Degree + screw tolerance degree can be achieved.

The present invention by the above-described configuration has the advantage that it can be applied to various industrial equipment or machine tools, such as to provide an excellent precision device.

In addition, the use of air or oil as a drive source has the advantage that it can be used as a variety of transfer systems and valve opening and closing devices such as chemical plants that handle highly flammable substances to prevent safety accidents such as explosion.

Claims (7)

In the motor is provided with a rotary rotor and the rotational force is generated in the rotary rotor by the supplied air or oil, A rotary rotor 300 which is eccentrically positioned in the cylinder 100 and has a plurality of blade pieces 310 inserted therein and a female screw formed at a center shaft portion thereof penetrated therethrough; A screw 400 fastened to the female screw portion formed in the rotary rotor 300 by a screw coupling method and moving relative to the rotary rotor 300 according to the rotation; The cover 200 is fixedly coupled to the left and right ends of the cylinder 100 to block the rotary rotor 300 from the outside and the inlet 210 and outlet 220 of the fluid is provided; The pneumatic pneumatic screw motor, characterized in that the screw is moved or moved while the rotary rotor is rotated according to the restriction of the screw. The method of claim 1, wherein the inlet 210, A fourth branch pipe 215 formed on an upper side of the cover 200 and configured to supply air or oil to a lower surface of the wing piece so as to float the wing piece 310; And a third branch pipe (214) for supplying air or oil to the blade piece (310) such that a rotational force is generated in the rotary rotor (300). The method of claim 1, wherein the outlet 220, Is formed on the lower side of the cover 200 is in communication with the interior of the cylinder 100 is provided with a discharge controller 225 for controlling the amount of air or oil discharged is made of the rotational speed control of the rotary rotor 300 Hydraulic pneumatic screw motor, characterized in that. The method of claim 1, wherein the cylinder 100, A fluid hole 120 penetrating in parallel with the center axis of the rotary rotor 300 is formed on the upper side and the lower side, and the supplied air or oil and the discharged air or oil are distributed to the left and right covers 200. Pneumatic screw motor. The method of claim 1, wherein the inlet 210, The pneumatic pneumatic screw motor, characterized in that formed on the upper side of one side of the cover facing the left and right symmetry to selectively control the supply of air or oil to adjust the rotation direction of the rotary rotor 300. The method of claim 1, wherein the screw 400, Hollow pneumatic screw motor, characterized in that the hollow hole 410 is formed in the center to enable the transport of fluid. The method of claim 1 or 2, wherein the blade piece 310, Pneumatic screw motor, characterized in that the lower surface is supported by the spring 350