JP2012087772A - Rotary pump - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary pump capable of continuously generating the torque by solving a problem that, in a conventional rotary pump, the torque cannot be imparted to a rotary cylinder when a rotor is rotated, and reaches the common center point of a casing and the rotary cylinder, and the rotation is stopped.SOLUTION: In a conventional rotary pump, two rotary cylinders are divided by a blocking wall in the center of a casing, and are independently rotated. In the rotary pump, the blocking wall is separated from the casing, and integrated with the two rotary cylinders. When the two rotors are rotated in the integrated cylindrical space, and even when one rotor reaches the center point of the rotary cylinders, and the other rotor reaches the position deviated by 180°, the torque is generated thereby, the rotary cylinder is continuously rotated without stop, and the pump performance can be demonstrated thereby.

Description

The present invention relates to a rotary pump in which all moving bodies are excellent in confidentiality of circular rotation in a pump mechanism.

Conventional pumps are operated by impellers, gears, and vanes, but they all have small contact surfaces between the casing and cylinder and the rotating parts such as impellers, gears, and vanes. To increase the speed, the number of vanes, pistons, etc. is increased and the structure is complicated.

As a technique for solving this problem, there is a rotary pump of Patent Document 1 proposed by the present inventor.

Japanese Patent Application No. 2009-269291

However, in the above-mentioned Patent Document 1, when the main shaft rotates and the rotor comes to the common center point of the casing and the rotating cylinder, the rotating cylinder loses torque and stops rotating, and the pump does not operate. The present invention has been improved so that a high-performance pump action can be obtained with smooth rotation without generating torque continuously and stopping.

In Patent Document 1, the two rotating cylinders are separated by the shielding wall at the center of the casing and rotate independently of each other. However, this improved machine separates the shielding wall from the casing, and is united with the two cylinders as they are. The above-mentioned problem is solved by operating two rotors in two cylindrical spaces that are 90 degrees apart from the rotating cylinder.

That is, the present invention provides a suction port for sucking fluid in one half along the circular edge of the casing, and a discharge port for discharging fluid in the other half, and the circular shielding wall rotating in the casing, A circular cylinder having a cylindrical space is fixed in the central portion. Several of these integrated circular shielding walls and cylinders are arranged in parallel, arranged so that the cylindrical space is displaced at an equal angle, and fixed and integrated with each other. In these several cylindrical spaces, a main shaft having a center point of rotation is arranged at a position slightly shifted from the common center point of the casing, the shielding wall, and the rotating cylinder, and a radius twice this shift is set. The circular eccentric shaft is connected to the main shaft at the same distance as the deviation from the center point of the main shaft, and the rotor is arranged on the eccentric shaft. The rotating shielding wall is circular in a non-rotating part with a radius greater than the length from the center point to the center point of the main axis plus the radius of the main axis, and a rotating part that rotates around this non-rotating part. The above-mentioned problems are solved by separating the same number of eccentric shafts and rotors as the rotating cylinders and connecting them to the main shaft by shifting them at the same angle as in the rotating cylinders.

When there are two rotating cylinders, the displacement of the two cylindrical spaces is 90 degrees, but when the number of rotating cylinders is increased to three and four, the displacement of the cylindrical spaces changes to 60 degrees and 45 degrees, Similarly, the deviation between the eccentric shaft and the rotor changes from 180 degrees to 120 degrees and 90 degrees, and a smoother and stronger pumping action is generated.

When the main shaft rotates, the eccentric shaft and the rotor also rotate, and the rotating cylinder that houses the rotor also rotates in the casing together with the shielding wall. At this time, since the rotor moves in the cylindrical space, a change occurs in the volume of the cylindrical space formed by these four bodies, that is, the casing, the rotating cylinder, the shielding wall, and the six surfaces of the rotor, and the pump action occurs. Since these four contacts are all surfaces, they can be a high-performance pump with excellent confidentiality and simple structure.

It is sectional drawing of the rotary pump of patent document 1. FIG. It is a sectional side view of the rotary pump of patent document 1. It is sectional drawing of the rotary pump of this invention. It is a sectional side view of the rotary pump of this invention. FIG. 3 is a perspective view of two integrated rotating cylinders and a shielding wall of the present invention.

The detailed form of the present invention is as shown in FIGS. 3, 4, and 5, but in Patent Document 1 shown in FIGS. 1 and 2, the main shaft (1) rotates and the eccentric shaft (2) and the rotor are rotated. When (3) comes to the common center point (C) of the casing (5) and the rotating cylinder (4), torque cannot be applied to the rotating cylinder (4) and the rotation stops. The shielding wall (8) fixed in the casing (5) of 1 is separated as shown in FIG. 3, and two rotating cylinders (4) having a cylindrical space are shifted by 90 degrees as shown in FIG. When the two eccentric shafts (2) and the rotor (3) are rotated in the integrated rotating cylinder (4), the one eccentric shaft (2) and the rotor (3) are connected to the casing (5). When the central point (C) of the rotating cylinder (4) comes to the other eccentric shaft (2) and rotor (3) Since coming to 180 degrees out of position can be given a torque to the rotary cylinder (4), rotatable cylinders (4) formed by integrating the pump rotates smoothly without rotation is stopped to operate.

The shield wall (8) separated here rotates integrally with the rotating cylinder (4) and rotates around the main shaft (1), so that the common center point of the casing (5) and the rotating cylinder (4) is obtained. The distance from (C) to the center point (a) of the main axis (1) plus the radius of the main axis (1) is separated from the center point (C) of the shielding wall (8) in a circle and rotated. It is necessary to separate the shielding wall (8) from the non-rotating shielding wall (9).

1 Spindle 2 Eccentric shaft 3 Rotor 4 Rotating cylinder 5 Casing 6 Suction port 7 Discharge port 8 Shield wall rotating portion 9 Shield wall non-rotating portion 10 Spindle through hole a Spindle center point C Common center point of the rotating cylinder and casing

Claims (1)

A suction port for sucking fluid is provided in one half along the circular edge of the casing, and a discharge port for discharging fluid is provided in the other half. A circular shielding wall that rotates in this casing has a cylindrical shape in the center. A circular cylinder having a space is fixed, and this integrated circular shielding wall and several cylinders are arranged in parallel, arranged so that the cylindrical spaces are displaced at an equal angle, fixed, and integrated, and these cylindrical spaces Inside, the main shaft is placed with a center point of rotation at a position slightly shifted from the common center point of the casing, shielding wall, and rotating cylinder. A circular eccentric shaft with a radius of 5 mm is connected to the main shaft at the same distance from the center point of the main shaft as the deviation length, and a rotor is arranged on this eccentric shaft. The radius of the main axis to the length to the center point of A rotary pump in which a non-rotating part with a radius greater than the added length and a rotating part that rotates around this non-rotating part are separated into a circle, and the same number of eccentric shafts and rotors as the rotating cylinder are connected to the main shaft at an equal angle. .

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