JPH1054337A - Motor provided with rotary type shielding arm and rotary mechanism acted as pump - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress action for bending an arm by scooping away between straight line ends of a curve surface scooped way on an arm end part in a curve surface or a flat surface, and providing with a shield surface for shielding flow of a fluid on its scooped surface or a surface before scooping. SOLUTION: When pressurized fluid is supplied from a fluid taking-in port 30, a device is acted as a motor. A shield surface 2 scooped way in a flat surface and a curve surface between straight line ends 5a and 5b in the curve surface of one end of an arm 1 is pushed down by pressure of the pressurized fluid, and a rotor 10 is rotated through an arm rotary shaft 3. When the rotor 10 is rotated and the rotary type shield arm 1 abuts on the rectifier roller 24, the arm 1 is pushed to the roller 24, and buried in an arm buried recessed part 12, and passes the roller 24. When a rotor rotary shaft 11 is rotated in a direction reverse to motor action, a device is acted as a pump.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating mechanism such as a motor or an engine that uses a pressurized fluid such as pressurized water or air as a driving source, and rotates water or air by rotating a rotating shaft of a rotor. The present invention relates to a rotation mechanism of a pump that pressurizes and transfers a fluid such as.

[0002]

2. Description of the Related Art Motors and pumps incorporating a rotor with gears, a rotor having a plurality of movable vanes around it, and the like are used in various industrial fields. These rotating mechanisms have problems in the following applications.

(1) Since the rotor rotates while the vane is in contact with the casing, it is difficult to drive with a low-pressure pressurized fluid due to high frictional resistance. In particular, motors using gears are suitable for low-pressure driving. No

[0004] (2) Since a force to bend the vane acts on the movable vane due to the pressure of the fluid, in order to obtain a movable vane having a strength that can withstand high-pressure driving, the selection of the shape and material of the vane is restricted. Comes out.

[0005] (3) The movable vane is not suitable for a local opening / closing operation for passing through a straightening point because the impact is large.

(4) If the supply of the pressurized fluid is stopped while operating as a motor, the rotor stops. Further, since the rotor keeps rotating by inertial force, a pumping action works to make the pressure side of the pressurized fluid supply a negative pressure.

[0007]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems in applications while inheriting the prior art,
It is an object of the present invention to provide a rotating mechanism for obtaining a motor or a pump having a simple mechanism.

[0008]

Means for Solving the Problems In order to achieve the above object, a first aspect of the present invention is a curved surface having a cylindrical rear surface, a rotating shaft provided at one end, and another end formed of a cylindrical surface having a concentric rotating shaft. Having a shielding surface that cuts off a curved surface or a flat surface between two straight ends of the cut surface, and blocks a flow of the fluid at the cut surface or a surface before being cut, and shields a pressure of the fluid. The surface is transmitted to the rotating shaft along the receiving arm.

According to a second aspect of the present invention, a recess for burying the arm according to claim 1 is provided in an outer peripheral portion of the rotor, and when the arm is buried in the recess, the back surface of the arm and the outer peripheral surface of the rotor have the same curved surface. Attach the rotation axis of the arm to the rotor so that it is on the top, make the concave surface facing the shield surface of the buried arm a cylindrical shape that is concentric with the rotation axis of the arm, and the arm has one straight end of the shield surface The other straight end can be inscribed in the fluid passage curved surface of the casing by rotating while touching the concave curved surface, and the other linear end different from the inscribed end of the shielding surface with the casing is always independent of the rotor rotation position. Arm that forms a fluid passage curved surface of the casing so as not to come off from the recess of the rotor, provides a fluid rectification point in the fluid passage interposed between the rotor and the casing, and is inscribed in the fluid passage curved surface of the casing. As the rotor rotates, it is pushed into the rotor at the rectifying point and can pass through the rectifying point, and the fluid intake and discharge ports are provided at positions sandwiching the rectifying point, and operate as a motor when the pressurized fluid is supplied from the fluid intake. Then, when the rotation shaft of the rotor is rotated, the rotor operates as a pump.

[0010]

The motor configured as described above is driven to rotate by supplying a pressurized fluid to a fluid intake. The rotary shield arm pushed into the fluid passage by a spring or a centrifugal force receives the pressure of the fluid on the shield surface, transmits the pressure to the rotation axis of the arm, and rotates the rotor. Since the force to bend the arm is weak, the strength of the arm can be maintained with a simple shape, and a wide range of materials can be used for the arm.

The pressure of the fluid is divided into a force for pressing the arm against the casing and a force for rotating the rotor via the rotation shaft of the arm. Since the opening angle of the arm is small due to its structure,
The friction resistance of the arm inscribed in the casing is reduced, and the pressure loss of the fluid is reduced. The motor can be driven while the arm is inscribed in the casing by limiting the opening angle of the arm to a small value.However, the thickness of the fluid passage is constant so that the arm does not contact the casing when the arm is opened. A stopper is provided between the rotor and the arm, and a roller is provided at the rectifying point to reduce the frictional resistance when the arm is pushed into the dent of the rotor and passes through the rectifying point. A motor that can be driven to rotate by pressurized fluid is obtained

When the supply of the pressurized fluid is stopped while the rotor is rotating, the back surface of the arm is pushed due to the resistance of the fluid in the fluid passage, and a gap is formed in the shielded fluid passage.
The gap allows the rotor to spin,
Even if the supply of the pressurized fluid is stopped, the rotor does not stop and the effect of making the supply side of the pressurized fluid a negative pressure can be reduced. In addition, if a cut portion is provided from the back to the abdominal surface of the arm to reduce the resistance due to the fluid in the fluid passage when the pressurized fluid is stopped, the arm can maintain the shielded state of the fluid passage, so the supply of the pressurized fluid is stopped. The conventional operation of stopping the rotor can also be supported. At this time, the concave portion of the rotor in which the arm is buried is filled with the deleted portion of the arm so that there is no gap on the outer periphery of the rotor.

This motor also operates as a pump by rotating the rotating shaft of the rotor, but operates as a pump in either direction by the following modification. (1) In order to reduce the resistance due to the fluid in the fluid passage, a deletion portion is provided from the back to the abdomen of the arm. (2) A cylindrical recess is provided at the center of the rotor, and a roller is provided so as to be in contact with the recess. (3) When the arm is pushed out of the rotor, the arm is provided with a claw that protrudes into a dent provided in the center of the rotor and hits a roller in contact with the dent. The motor modified as described above operates as a pump with low frictional resistance regardless of the direction of rotation of the rotor.

[0014]

Hereinafter, the present invention will be described based on the illustrated embodiment. FIGS. 2 and 3 show the basic type of the rotary shield arm of the first invention. The shielding surface 2, which is cut out between the straight ends 5a and 5b by a flat surface and a curved surface, transmits the pressure of the pressurized fluid without loss to the rotary shaft 3 along the receiving arm. When the supply of the pressurized fluid is stopped, the curved surface of the back surface 4 has no cutout to increase the resistance received from the fluid so that the rotor can idle. Although not shown in the drawing, a plurality of fine holes penetrating from the back surface 4 to the abdominal surface 6 are provided to allow the fluid to freely flow between the back surface 4 and the abdominal surface 6 when the arm opens and closes. Can be raised.

FIGS. 4 and 5 show an example in which the basic type of the arm is modified so that the rotor can be stopped when the supply of the pressurized fluid is stopped. By providing the deleted portion 7 from the back surface 4 to the abdominal surface 6, the resistance received from the fluid in the fluid passage when the supply of the pressurized fluid is stopped can be reduced, and the arm can keep the fluid passage blocked. Therefore, when the supply of the pressurized fluid stops, the action of the pump operation works, and the rotor stops.

FIG. 1 shows the basic type of the arm provided with a pawl 7 so that the rotor 10 can rotate in either direction, and a stopper 14 is provided on the rotor 10 so that the arm does not contact the curved surface 22 of the casing fluid passage. FIG. 9 shows a rotating mechanism according to a second aspect of the present invention which operates as a pump. A spring is provided between the pawl 7 and the stopper 14, and the rotary shield arm 1 is pushed out by the fluid passage 23 to shield the fluid passage 23 except for the rectifying portion. At this time, the claw 7 is hooked on the stopper 14 so that the linear end 5a of the shielding surface 2 does not come into contact with the curved surface 22 of the casing fluid passage and the linear end 5b does not come off from the arm burial recess 12.
When a pressurized fluid is supplied from the fluid intake port 30, it operates as a motor. The shield surface 2 is pushed by the pressure of the pressurized fluid, and the rotor 10 is rotated via the arm rotation shaft 3. When the rotor 10 rotates, the rotary shield arm 1 becomes the rectifying roller 2
4, the rotary shield arm 1 becomes a rectifying roller 24.
Rectified roller 2
Pass 4 When the rotor rotation shaft 11 is rotated in a direction opposite to the motor operation, the rotor operates as a pump. Rotor 1
With the rotation of 0, the rotary shield arm 1 pressurizes the fluid and transfers it to the fluid inlet 30. When the rotor 10 further rotates, the claw 7 is hooked on an arm pushing roller 25 provided in front of the rectifying roller 24, and the rotary shield arm 1 is pushed into the arm burial recess 12, and the rectifying roller 2
Pass 4

FIG. 6 shows a configuration in which the rectifying roller 24, the arm pushing roller 25 and the claw 7 shown in FIG. 1 are removed, the casing center 21 and the rotor rotating shaft 11 are eccentric, and the rotor and the casing are directly inscribed to rectify the fluid. This is an example in which the rotation mechanism is simplified.

[0018]

According to the rotary shield arm of the first invention, since the pressure of the pressurized fluid is transmitted to the rotor along the arm, the effect of bending the arm can be reduced. Therefore, restrictions on selecting the shape and material of the arm for maintaining the strength of the arm are reduced. Further, by selecting the shape of the back surface of the arm, the rotor can be stopped when the supply of the pressurized fluid is stopped, or the rotor can be idled so that a negative pressure is not generated on the supply side of the pressurized fluid.

Further, according to the rotation mechanism of the second aspect of the present invention including the rotary shield arm of the first aspect, the impact caused by the opening / closing operation of the arm can be reduced by reducing the opening angle of the arm, and the arm can be localized. Can be opened and closed.

A stopper is provided between the rotor and the arm so that the arm does not come into contact with the casing, and a roller is provided at a location for rectifying the fluid. A motor that can be obtained.

By providing a claw on the arm and pressing the claw on a roller inscribed in the rotor to forcibly push the arm into the recess of the rotor, a rotating mechanism that reversibly operates the motor and the pump is obtained.

[Brief description of the drawings]

FIG. 1 is a sectional view of a motor according to an embodiment of the present invention.

FIG. 2 is a side view of a basic type of the rotary shield arm of the present invention.

FIG. 3 is a plan view of a basic type of the rotary shield arm of the present invention.

FIG. 4 is a side view of a modified example of the basic type of the rotary shield arm of the present invention.

FIG. 5 is a plan view of a modification of the basic type of the rotary shield arm of the present invention.

FIG. 6 is a sectional view of a motor according to an embodiment of the present invention.

[Description of Signs] 1 Rotary shield arm 2 Shielding surface 3 Arm rotation axis 4 Back surface 5a Straight end 5b Straight end 6 Abdominal surface 7 Deletion unit 10 Rotor 11 Rotor rotation shaft 12 Arm buried recess 13 Rotor inner recess 14 Stopper 20 Casing 21 Casing Center 22 Curved surface of casing fluid passage 23 Fluid passage 24 Straightening roller 25 Arm pushing roller 30 Fluid intake 31 Fluid outlet

Claims (2)

[Claims] 1. A back surface is a cylindrical curved surface, a rotating shaft is provided at one end, and the other end is cut by a cylindrical surface having the rotating shaft concentric, and a curved surface or a flat surface is formed between two straight ends of the cut curved surface. A rotary shield arm having a shield surface for shielding a fluid flow on a surface which is cut off, cut off or before being cut off, and receives a pressure of the fluid at the shield surface and transmits the pressure of the fluid to a rotating shaft along the arm. 2. An outer peripheral portion of the rotor is provided with a recess for burying the arm according to claim 1, so that when the arm is buried in the recess, the back surface of the arm and the outer peripheral surface of the rotor are on the same curved surface. Attach the rotation axis of the arm to the rotor, make the concave surface facing the shielding surface of the buried arm a cylindrical shape concentric with the rotation axis of the arm, and make one straight end of the shielding surface contact the concave surface While rotating, the other linear end can be inscribed in the fluid passage curved surface of the casing, and the linear end different from the inscribed end of the shielding surface with the casing always comes off the rotor recess regardless of the rotor rotation position The fluid passage curved surface of the casing is formed so that there is no fluid rectification point in the fluid passage sandwiched between the rotor and the casing, and the arm inscribed in the fluid passage curved surface of the casing is used for rotation of the rotor. Accordingly, it can be pushed into the rotor at the rectification point and can pass through the rectification point, the fluid intake and discharge ports are provided at the positions sandwiching the rectification point, and when the pressurized fluid is supplied from the fluid intake, it operates as a motor and operates as a motor. The rotation mechanism provided with the arm according to claim 1, which operates as a pump when the rotation shaft is rotated.