KR20000002878A - Cocentric typed roller pump - Google Patents

Abstract

PURPOSE: A cocentric typed roller pump is provided to be installed in the Power Take Off shaft of an agricultural tractor and to easily clean the dirt of a farming machine. CONSTITUTION: The circle type roller pump comprises:a pump case(1) forming a inhaling hole(20) and a delivering hole(10); a cap(2) covering the pump case; a rotor(30) forming a groove; a roller(5) inserted into a groove(4) of the rotor; a bearing(6) installed in a rotor shaft(15); a seal ring(7) installing to be inserted between the rotor shaft and the cap, and preventing leakage; and a gasket(8) installed between the case and the cap.

Description

Centrifugal roller pump

The present invention relates to a roller pump, and more particularly, the present invention relates to a roller pump for strongly pushing the liquid sucked between the rollers mounted in the grooves of the rotor from the suction side to the discharge side by the rotation of the rotor, which is a rotor in contact with the casing. It is about.

Conventional vane pump is a structure in which a rotor (pump) is attached to a rotating body to rotate and pump a fluid, and a structure having a plurality of rotary vanes and a slide structure having two vane vanes is used.

The vane pump pressurizes the fluid by the eccentricity of the rotating body and the blades (blades) of the rotating body, thereby pumping the fluid to the discharge port.

However, such a conventional vane pump has a high friction between the blade surface of the rotating body and the case surface which is in close contact with the rotating body at high speed and generates heat due to the friction to affect the fluid. In addition, the sleeve that is mounted and flows to the rotating body has a problem that the foreign matter is caught in the gap of the flow surface or the operation is unstable when the sludge is inserted, resulting in a failure and a noise.

Accordingly, the present invention has been made in view of the above-described conventional problems, and an object of the present invention is to easily mount on a PTO (Power Take off) shaft of a farm tractor and to compactly dispose strongly in the cleaning of foreign matters on agricultural machinery. To provide a roller pump.

The centrifugal roller pump of the present invention for achieving the above object is inserted into a pump case having a suction port and a discharge port, a cap of the pump case, a rotor having a groove, and a groove of the rotor. It is characterized by a compact structure comprising a roller, a bearing mounted on the rotor shaft, a seal ring inserted between the shaft and the cap to prevent leakage, and a gasket mounted between the case and the cap.

1 is an exploded perspective view showing a centrifugal roller pump according to an embodiment of the present invention;

Figure 2a is a cross-sectional view showing the operating state of the centrifugal roller pump,

2b is a partial cross-sectional view of another embodiment of the invention;

Figure 3 is a perspective view of a roller mounted to the rotor of the invention.

Explanation of symbols on the main parts of the drawings

One; Case 2; cap

4: groove 5: roller

6: bearing 7: sealing

8: gasket 10: outlet

15: rotor shaft 20; Inlet

30: rotor

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is an exploded perspective view showing a centrifugal roller pump according to an embodiment of the present invention, Figure 2a is a cross-sectional view showing the operating state of the centrifugal roller pump, Figure 2b is a cross-sectional view of another embodiment of the present invention, Figure 3 is the invention It is a perspective view which shows the roller mounted to the rotor of the.

As shown in Figs. 1 to 3, the centrifugal roller pump according to the present invention includes a pump case 1 having a suction port 20 and a discharge port 10, a cap 2 of the pump case, and a groove. The formed rotor 30, the roller 5 inserted into the groove 4 of the rotor, the bearing 6 mounted on the rotor shaft 15, the rotor shaft 15 and the cap 2 And a seal (7) inserted into the case (1) and preventing leaks, and a gasket (8) mounted between the case (1) and the cap (2).

The pump case 1 is formed of a strong aluminum alloy that is not rust, and has a suction port 20 and a discharge port 10 formed on a rear surface thereof, and is fixedly mounted with a screw 2 by a case cap 2.

The rotor 30 has eight grooves 4 formed on the circumference thereof so that the rollers 5 are fitted in the respective grooves, and are combined at minute intervals so that there is no loss of fluid and friction during rotation of the rollers 5 is achieved. The pumping fluid while the roller is circular motion along the inner surface of the case by the centrifugal force during the rotation of the rotor (30).

The bearing 6 is mounted on the rotor shaft 15 and the mounting surface of the case 1 so as to rotate smoothly, and a seal 7 mounted to prevent leakage of fluid during rotation or stoppage is fitted.

Next, the operation of the centrifugal roller pump having the above structure will be described.

First, when the rotor shaft 15 rotates by the rotation of the driving unit, fluid flows into the suction port 20. The fluid introduced between the rollers 5 of the rotor, the central axis of which is eccentric to the case 1, is compressed by the rotation of the roller and is strongly discharged to the discharge port 10.

At this time, it is possible to install a filter to increase the hole of the suction port 20 and to prevent foreign matters from entering, to increase the number of rollers to increase the discharge pressure, and to reduce the number of rollers to increase the discharge amount. have.

The inlet air chamber 21 formed in the inlet 20 and the outlet 10 at the rear of the case 1 facilitates the inflow of the fluid by allowing the inhaled fluid to be smoothly sucked in, and the discharge air of the fluid discharged to the outlet 11. Grooves are formed in the inlet surface of the inlet port and the outlet port so as to increase pressure and facilitate smooth discharge.

The roller 5 inserted into the groove of the rotor 5, which is the rotating body shown in FIG. 3, can be used as a compressor by preventing rubber from being coated or covered with rubber or synthetic resin on the roller surface 16.

For example, the roller pump can be changed into a compressor as well as a pump, and such a change does not limit the scope of the present invention.

As the present invention has been described through the above embodiment, when contacting the roller surface and the inner surface of the case, the friction is very small and there is an effect that the noise is significantly reduced. In addition, the discharge pressure and the discharge amount can be adjusted by the number of rollers without a change in the number of revolutions, and because it is compact, it is a very useful invention in the pump industry because there is a very convenient effect when washing agricultural machinery.

Claims (3)

A pump case 1 having a suction port 20 and a discharge port 10 formed therein, a cap 2 covering the pump case, a rotor 30 having a groove formed therein, and a groove 4 of the rotor. A roller 5, a bearing 6 mounted on the rotor shaft 15, a seal ring inserted between the rotor shaft 15 and the cap 2 and preventing leakage, and a case ( A centrifugal roller pump comprising: a gasket (8) mounted between 1) and a cap (2). 2. The rotor (30) according to claim 1, wherein the rotor (30) increases or decreases the number of rollers inserted into the grooves 4 of the outer circumference according to the discharge pressure and the discharge amount. Centrifugal roller pump, characterized in that consisting of. The centrifugal roller pump according to claim 1, wherein the roller (5) is coated on its outer surface (16) for hermetic sealing or using an hermetic member.