JPH02146283A - Vane pump with rotary diaphragm - Google Patents

Abstract

PURPOSE:To execute the intake, compression and discharge of a fluid effectively by constructing the title pump in such a way that an oscillating shaft performs reciprocating motion slidably along the longitudinal surface and the head part of a fan-type vane according to the rotation of a main spindle and the fluid inhaled from an inlet is discharged from a discharge opening. CONSTITUTION:When a main spindle is rotated at constant speed, a fan-type vaned 23 integrated with a spherical axis 20 is also rotated in a fan-type operating chamber 16 in an outer casing, an oscillating shaft 26 slidably fitted to the fan-type vaned 23 is closely guided to a disc diaphragm 40 in the fan-type operating chamber 16 and oscillated maintaining watertight so as to generate pressure difference in the fan-type operating chamber 16. The rotation of the fan-type vaned 23 in the fan-type operating chamber 16 increases the pressure in front of the fan-type vaned 23 and generates negative pressure behind the fan-type vane 23 so as to generate suction force. Accordingly, a fluid is guided into the operating chamber 16 through the inlet 21 of the spherical axis 20 from the one inlet 34a of the main spindle, compressed at the diaphragm 40 and the vane 23, and discharged outside from the other discharge opening 34b through the discharge opening 22 of the spherical axis 20.

Description

[Detailed Description of the Invention] 1) Utilization of lf industry! l! FIELD OF THE INVENTION This invention relates to a vane pump having a rotary partition, and more particularly to an improvement of Patent No. 819130 of the present applicant.

[Prior Art] In Japanese Patent No. 819130, the applicant of this patent has developed a method that effectively generates a driving force that keeps the suction amount and discharge amount constant during operation, has little unevenness in load, and rotates the motor extremely efficiently. fl
[Problems to be Solved by the Invention] In the vane pump having a rotating partition panel disclosed in Patent No. 819130, the partition boundary line of the side wall of the outer casing has been provided. A discharge port is formed in the front of the case, an inlet port is formed in the rear part of the case, and a window is formed in the conical side wall.The partition boundaries are located at two locations, one on the upper right side and the lower left side of the outer case, and the inlet and outlet ports are formed on the front and rear sides respectively. Since a water port is formed, it is necessary to provide a total of four, which makes the configuration complicated, making it difficult to manufacture and increasing the manufacturing cost. There were various deficiencies such as not being implemented on average.

Technical Means for Solving Problem L] This invention eliminates the provision of the discharge port in front of the partition boundary line of the side wall of the outer casing and the suction port in the rear of the partition boundary line of the outer casing side wall in the above-mentioned patent. A suction port is provided on one side of the main shaft to be penetrated, and a discharge port is provided on the other side, an open window is formed in the center that can freely communicate with the suction port and the discharge port of the LT port of the spherical shaft, and a suction port is provided on the other side. By forming the outlet, the above-mentioned drawbacks are eliminated.

[Function] According to the vane pump having the rotary partition panel having the above-mentioned configuration, when the main shaft is rotated at a constant speed by another drive device (not shown), the fan-shaped vane integrated with the spherical shaft also moves inside the outer casing. A swing shaft that rotates in a fan-shaped working chamber and is slidably interposed with the fan-shaped vane is closely guided by the circular partition board in the eye-shaped working chamber and swings while maintaining watertightness. This creates a pressure difference within the sector-shaped working chamber.

As the fan-shaped vane rotates within the fan-shaped working chamber, pressure increases in front of the fan-shaped vane, and negative pressure is generated behind the fan-shaped vane to generate suction force. Therefore, fluid is introduced into the working chamber from one suction port of the main shaft via the suction [1] of the spherical shaft.

The fluid in the working chamber is compressed by the partition plate and the vane, and is discharged to the outside from the other outlet via the outlet of the spherical shaft.

[Example] An actual example of a vane pump having a rotary partition panel according to the present invention will be explained with reference to the accompanying drawings.

In Nos. 1 to 41; 4, the outer case 10 has a fan-shaped cross section, and a guide groove 10b is formed from one side of the inner circumferential surface of the arcuate circumferential wall 10a and from a diagonal line thereof, and a guide groove 10b is formed at both ends of the arcuate portion toward the center. Securing the narrowing conical side wall 12.12a and tightening the side wall 12.12a.
A through hole 14 is formed in the center of 12a.

Bearing parts 18 such as roller bearings are provided at both ends of the inner wall surface of the through hole, and a main shaft 3 through which a spherical shaft 20 (described later) passes Ct is provided.
0 is provided rotatably. Therefore, outer box 10
has a fan-shaped cross section that becomes narrower at its center, that is, at its main part.

A ball shaft 20 shown in Nos. 10 to 1G is provided at the center of the outer casing 10, and the ball 11114:1 has a larger diameter "C" than 114a, partially protrudes into the working chamber 16, and has both ends 20.
c, 20c are shaped to become narrower toward the center corresponding to the inner surface t2c 12c where the center of the conical side wall 12.12a becomes narrower, and a through hole 201) for the main shaft 30 is bored at the center of both ends 20c, 20c.

As shown in FIGS. 10 to 14, the spherical shaft is vertically integrally provided with fan-shaped vanes 23 that become wider from the center toward the circumference.
Arc-shaped wall 10a and both conical side walls 12.12 in the working chamber 16
It should be able to slide freely while keeping water on each side of a.

As shown in Figure 12, the vane 2 is
An inlet 21 and an outlet 22 are formed toward both sides of the vane 1, and a swing shaft 26 (not shown in FIG. 15) is provided on both sides of the vane.
straddles the title of the song, part 1 (closely contacts the surface and slidably bottoms, and the swing shaft is swingable from side to side on both sides of the circumferential surface of the vane.

In FIGS. 7 to 9, the main shaft 30 that fits into the (one-way opening 201) of the spherical shaft 20 has a central portion 30a whose outer diameter is slightly smaller than the inner diameter of the through-hole 20b, and the former In order to enable the latter to be fixed in a watertight manner, a partition wall 31 is provided in the center longitudinal direction within the central portion 30a, and a release window 31a is formed by cutting out the cylindrical wall of the main shaft in the longitudinal direction, as shown in FIG. 311)
are formed, respectively, to have communication capability with the suction port 21 and the discharge port 22, respectively, and to provide communication between the suction port 34a and the discharge port 34b, which will be described later.
As shown in FIG. 7.9, partition walls 36 and 36a are formed at corresponding locations on the radial sides of the release windows 31a and 31t+ at the J section to separate the suction port 21, the discharge port 122, and the working chamber 16 of the outer casing 10.
Cylindrical portions 32a, 32b are formed on both sides of the central portion 30a of the main shaft 30 to enable communication between the inside and outside of the central portion 30a. Cylindrical part 32a
Small diameter cylinders 33a, 33t) are formed at both ends of 32b to serve as an intake D34a and a discharge port 34b.

: The shaft 30 is fitted and fixed into the through hole 20b of the spherical shaft 20, and the cylindrical portions 32a and 32b of the main shaft 1 are inserted into the inside 1'1 of the outer case 10 via roller bearings 18 and 18. The rotation 11 is inserted into the opening 14b (°I), and the ball @20
The suction port 21 and the discharge port 711122 are fixed to the open windows 31a and 31b of the main shaft 30 while remaining open, so that both suction and discharge can communicate freely at all times.

In FIGS. 5 and 6, the circular partition plate 40 has a circumference 41 of a size that matches the guide groove 106 formed on the inner circumferential surface of the arcuate wall 10a of the fan-shaped outer casing 10, and the circular partition plate 40 has a circumferential curve numbered from the center. A through hole 42 having a gentle slope and into which the spherical shaft fits is formed in the center thereof, and a curved surface 42a corresponding to the spherical surface of the spherical shaft is formed on the peripheral surface of the through hole. Make sure the area around the shaft is in close contact.

The vane 2 of the spherical shaft 20 extends from the t'1 opening 42 toward the circumference.
A fitting groove 44 is formed in which the fitting groove 3 and the swinging part 1111i26 are fitted, and the inner surface of the fitting groove also has a curved surface 44 toward its center.
A is formed so that the vane can closely fit into the fitting groove of the partition board 40.

During manufacturing, the radius line -L of the circular partition fi40 is set as shown in Figure 6.
The contact surface is divided into concave and convex shapes, and the board is divided into two semicircles 140a.
, 40a Toshi, 74 half fl 12 J: Drill through holes 110C, 40C in the uneven portions 40b, 40b.

Fit the concave and convex portions together, and screw the bolt 46 into the through holes 40c, 40c from the circumferential edge toward the 11th center.
The semicircular fi 40a, 40a are made into one circular partition board 40.

"Assembling" - the ball 11i is inserted into the through hole 42 of the circular partition panel 40.
20 are bottomed together, and then the vane 23 and the swing shaft 26 fitted into the fitting groove 44 are guided into the arcuate wall 10a, and the guide groove 1 (lb) of the arcuate wall is inserted into the spherical shaft. The head 26a of the swing shaft 26 fitted across the guide groove 10b is fitted into the guide groove 10b, and the conical side walls 12.12a are fixed to both sides of the arcuate wall.

Furthermore, partition f! ? The L+10 circumferential wall is fitted into the guide groove 10b of the arcuate wall 10a in a watertight manner.

Therefore, the ball @20 is rotatably passed through L'1 in the [°I port] 14 of the outer case 10, and the main shaft 30 is inserted into the 1:1 port 2 of the ball shaft.
0b and fixed to the latter, the release window 3 of the main shaft
1a, 311) are arranged so as to face the suction port 21 and discharge port 22 of the spherical shaft. Since roller bearings 18 and 18 are interposed between the cylindrical portions 32a and 32b having smaller diameters on both sides of the central portion 30a of the main shaft and the through hole 14, the main shaft can smoothly move within the through hole [, 12011]. be rotated.

The guide groove 10b of the circular partition board 40 is formed to be inclined by about 15 degrees with respect to the vertical line G of the main l11130. The partition board contacts the conical side wall 12a on the right side at the upper guide ob of the outer box 10, and contacts the conical side +111i2 on the left side at the guide groove 10b on the f side, both of which maintain a watery state.

Therefore, the volume inside the outer box 10 is divided into two by the partition plate serving as a partition line, and is separated into a chamber 11 on the right side and a chamber 11a on the left side.

When the main shaft 30 is rotated in a certain direction by another drive source (not shown), the spherical shaft 20 integrated with the main shaft moves into the internal through hole IA.
b through the roller bearing 18, and at the same time the circular partition plate 40 and the fan-shaped vane 23 integrated therewith also rotate. As a result, due to the rotation of the fan-shaped vanes, the fluid sucked in from the suction port 34a and the release window 31a of the main shaft is transferred to the spherical shaft 20.
into the working chamber 16 from the suction port 21 of the fan-shaped vane 2
It is compressed in the rectangular direction of 3.

At the same time, about 1
Since the volume inside the working chamber 16 is reduced by the final J disk 40 rotating at an inclination of 5 degrees, the fluid in the front side of the fan-shaped vane 23 is compressed, and the through hole 22 of the spherical shaft 20 is closed to the release window 31a.
The liquid is then discharged from discharge +134b.

As a result, the volume inside the working chamber 16 increases on the back side of the fan-shaped vane 23, so fluid is sucked through the suction port 34a and the release window 31a.

When the fan-shaped vane 23 is in the horizontal position as shown in FIG. 3, the volume inside the outer casing 10 is divided into two by the partition plate 40, which is further divided into two by the fan-shaped vane, so the inside of the outer casing is divided into four. There will be 4 rooms.

The circular vane further rotates and the conical side wall 12a of the outer casing 10
When it comes into contact with the outer case, the right chamber 11 inside the outer case is not divided by the fan-shaped vane and remains one chamber, so there are three chambers inside the outer case.

In this way, the fan-shaped vane 23 integrated with the spherical shaft 2G is attached to the outer case 1.
Since it rotates within 0, dividing the inside of the outer box into 3 to 4,
The sector vane rotates.

Therefore, the swing shaft 26, which is slidably fitted from 1 to the fan-shaped vane astride it, is slidably fitted in close contact with the eight surfaces of the circular partition board 40, and the swing shaft Rotate the partition @40.

[Effect 1] In the vane pump having the rotary partition panel having the above-described configuration, the volume inside the working chamber 16 is reduced by the partition 01140 that rotates at an angle of about 15 degrees with respect to the vertical line of the fan-shaped vane 23 and the main shaft 30. The oscillation @26, which is fitted onto the fan-shaped vane from above, is slidably fitted in close contact with the eight sides of the circular partition panel to maintain a sufficient water-tight state, thereby preventing fluid intake. , compression, and discharge can be carried out extremely effectively.

[Brief explanation of the drawing]

11''!1 is a front view of an embodiment of a vane pump having a rotary partition panel according to the present invention, FIG. 2 is a left side view of FIG. 1, and FIG. 111 line reduced cross-sectional view, FIG. 4 is a vertical cross-section showing the state in which the main shaft spherical shaft, circular partition plate, fan-shaped vane, and swing shaft are removed from the outer case, which are not shown in FIG. FIG. 6 is a partially transparent front view of the partition panel, FIG. 6 is a partially transparent side view of FIG. 5, and FIG. 7 is a partially cutaway transparent front view of the main shaft.
11 line cross-sectional view, 9th fXILi, Fig. 1 77) IX-
IX line reduced vertical cross section Xl-Xi line cross-sectional view 1st
3[:4 is the plan view of Fig. 4. 1st
Figure h is a JE plane view of the swing axis, and Figure 1611 is a partially transparent bottom schematic diagram showing the center of the spherical axis. 10...outer box: 12.12a -...fl! l wall; 14... Penetration port: 14a... Internal penetration port; 16... Working chamber: 20... Ball shaft: 21... Suction 11: 22... Outlet port 23... Fan-shaped vane : 26... Swing axis; 30... Main shaft: 31... Axial partition walls 31a, 31b, , , release window: 34a.
... Suction port; 34b ... Discharge [l: 36 36a ... Radial bulkhead: 40... Circular partition panel: 42... Penetration port. Figure 1

Claims (1)

[Claims] (1) An outer box with a fan-shaped cross section, which is composed of an arcuate circumferential wall and a conical side wall, and has a bearing part formed in the center; A through hole is formed in the center, and a fan-shaped vane corresponding to the fan-shaped working chamber in the fan-shaped outer box is surrounded. A suction port and a discharge port are formed integrally in the longitudinal direction and communicate with the through-hole at the front and rear of the fan-shaped vane, respectively, and are slidably fitted across the front and rear surfaces and the head of the fan-shaped vane. a spherical shaft having a swing shaft rotatably fitted in the bearing part; and a spherical shaft having an inlet on one side, and an inlet and an outlet of the through-hole of the spherical shaft in the center; a main shaft which is fixedly fitted into the spherical shaft which is rotatably fitted into the through-hole of the fan-shaped outer casing; A circular space having a gentle slope toward the circumference from the center and a curved surface around which the spherical shaft comes into close contact with the periphery; forming a groove having a curved surface in which the fan-shaped vane and the swing shaft are in close contact; the spherical shaft is tightly fitted in the circular space; the fan-shaped vane is further fitted in the groove; It consists of a circular partition plate tilted and fixed at a constant angle with respect to the main shaft; by rotating the fan-shaped vane that is integrated with the spherical shaft in accordance with the rotation of the main shaft, the swing shaft can be moved forward and backward of the fan-shaped vane. The surface and the head are slidably reciprocated, and the inside of the fan-shaped outer box is divided into 3 to 4 parts by the circular partition board and the fan-shaped vane, and the fluid sucked from the suction port of the main shaft is divided into 3 to 4 parts by the circular partition plate and the fan-shaped vane. A vane pump having a rotating partition panel, characterized in that the partition panel and the fan-shaped vanes compress the air in the working chamber, and discharge the air from the discharge port via the discharge port of the spherical shaft and the release window of the main shaft. .