SU106685A1 - Rotary pump - Google Patents

Description

The subject matter of the invention is a rotary pump with a working space in the form of a flat elastic H oii of the lenticular cross-section of an open annular chamber sucking in and pumping the liquid when it is rolled around with a compression-shaped body of a conoidal shape.

The known rotary pumps with a working space in the form of an annular elastic chamber, performed by running some kind of pressure body when the latter is rolled, have a number of disadvantages: significant technological difficulties in manufacturing an elastic hollow chamber together with nozzles, difficult access to the working part of the chamber inspection and cleaning and quick breakdown of the elastic chamber along its edges.

A specific feature of the rotary pump described here is the making of one chamber wall from a rigid and the second of an elastic material in the form of a diaphragm, clamped by the edges between the rigid part of the chamber and the pump casing.

Such an implementation of the rotational pump allowed eliminating to a large extent the above mentioned parameters.

FIG. 1 shows a side sectional view of a rotary pump; in fig. 2- two projections of the rigid wall kaiviepbi.

The rotary pump is made in the form of a rigid cylindrical body /, through the axis of which the drive shaft 2 passes, with an oblique eccentric 3 rigidly mounted on it 3. On the eccentric 3 by means of a radially resistant bearing 4 a conoidal body 5 is seated.

When the shaft 2 is rotated with the oblique eccentric 3, the conoidal body 5 rolls along the elastic wall of the diaphragm 6, the edges of which are clamped between the end part of the body / and the rigid wall 7 of the chamber, produce suction through channel 8 (Fig. 2) in the rigid wall 7 and discharge the liquid through the channel 9 in the same rigid wall. Channels 8 and 9 are connected with the suction 10 to the discharge 11 pipelines.

Due to the fact that the pipes of the injection and suction pipelines 10 and // are connected to the rigid wall 7 of the chamber, its elastic wall 6 can have

simple, easily made form. Clamping the edges of the elastic wall of the chamber between the pump casing and the rigid wall of the chamber provides a longer operation of the pump and easy disassembly for inspection and cleaning of the working part of the chamber.

The described rotary pump can find application in many areas of technology where it is necessary to use stepless pumps.

The subject of the invention is a rotary pump with a flat elastic lenticular section working space of an open annular chamber sucking in and pumping liquid when a conoidal shape is rolled around by a pressure body, characterized in that, in order to simplify production and achieve easy access to the working part of the cleaning chamber, one the chamber wall is made of rigid, and the second is of elastic material in the form of a diaphragm, clamped by the edges between the rigid part of the chamber and the pump casing.