CN2591277Y

CN2591277Y - Non-friction blade pump

Info

Publication number: CN2591277Y
Application number: CN 02275159
Authority: CN
Inventors: 金文彪
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-09-05
Filing date: 2002-09-05
Publication date: 2003-12-10
Anticipated expiration: 2012-09-05

Abstract

The utility model relates to a vane pump without friction, which is characterized in that a bearing is arranged on the rotor vanes of the existing vane pump; positioning sliding slots are arranged on end covers arranged on the two sides of a pump body; the bearing is arranged in the positioning sliding slots which is concentric with the inner circle of the pump body; the structure can enable the vanes to rotate along the inner surface of the pump body without friction, and thereby, the utility model prolongs the service life of the vane pump, reduces noise, and saves energy. The efficiency of the technology can reach above 85 percent, and the utility model is suitable for transmitting petroleum and chemical products which have 0.02 to 100 pas medium viscosity; the utility model can be used as a steam motor and a hydraulic motor.

Description

There is not the friction vane pump

Affiliated technical field

The vane pump that the utility model relates to is to be used for oil pump that petrochemicals and general liquid carries and vapour, hydraulic motor.

Background technique

Existing vane pump and vapour-liquid motor thereof are to rely on the centrifugal force of rotor high-speed rotation generation or the elastic force of spring to make blade contact the proper functioning that guarantees vane pump with the internal surface of pump when work, so the wearing and tearing of surface of contact are very fast when rotating, reduce the working life of pump, and when the low pressure small flow, cause energy waste.

Summary of the invention

The purpose of this utility model is: a kind of novel vane pump is provided, and its is again a kind of vapour-liquid motor simultaneously, do not have friction when it can make blade along the inner surface movement of the pump housing, and prolong the working life of pump, and pressure and flow that the slow-speed of revolution still can held stationary.

The technical solution of the utility model is: a kind of nothing friction vane pump, has the pump housing, the rotor that one throw of eccentric is arranged with the pump housing is installed in the pump housing, this rotor is made up of rotor cylindrical body and several blades of radially sliding on the rotor cylindrical body, rotor and main shaft are connected, and main shaft is contained on the end cap of the left and right sides by main shaft bearing, it is characterized in that: left and right sides end cap be provided with the pump housing in the concentric positioning runner of circle, blade bearing is equipped with in the both sides of blade, the connection of rolling in positioning runner of this blade bearing.

The prior art of the utility model technology partly is common vane pump structure. rotor constitutes a crescent shape chamber by throw of eccentric in the pump housing, this chamber is separated into the cavity volume of several sealed again by epitrochanterian blade.When main shaft drove the rotor rotation, blade rotated simultaneously with the shape of the crescent moon chamber length at cylindrical body up conversion oneself along pump housing internal surface, the volume of the ascending thereupon descending again change oneself of sealed volume, and realization is to the purpose of liquid or gas suction.Because present technique has been installed bearing on blade, bearing rolls along the chute on the end cap of the left and right sides, chute is concentric with the interior circle of the pump housing, blade rotates at chute constraint lower edge pump housing internal surface, blade and pump housing internal surface are designed to Spielpassung, so rotor rotation does not have friction, there is not the working life that friction can prolong vane pump.Also constant to have stable sealing effect be that the mechanical structure of bearing and chute is finished because the rotor rotation time can keep this gap, so make the slow-speed of revolution still can keep pressure stable and flow, can reduce energy consumption during the slow-speed of revolution.Rolling friction diminishes noise.When present technique was done vapour, hydraulic motor use, the import input of this pump had the output shaft of pressing vapour, liquid to make the main shaft rotation make motor to get final product.Because of the gap of blade and inner surface of stator very little, and the time sheet be rolling motion, therefore when low pressure, small flow input vapour, liquid, rotor both can turn round.Because in low pressure, energy loss is little and improved the mechanical efficiency of motor during small flow.

Description of drawings

Below in conjunction with description of drawings embodiment of the present utility model.

Fig. 1 is the structural representation that the utility model does not have the friction vane pump.

Fig. 2 is the A-A sectional drawing of the utility model Fig. 1.

1 rotor, 2 glands, 3, black box, 4 left end caps, 5 pump housings, 6 Stamping Steel Ribbons, 7 right end caps, 8 main shafts, 9 bearing glands, 10 blades, 11 blade bearings, 12 main shaft bearings, 13 main shaft bearings, 14 imports, 15, eccentric shaft E, 16 positioning runners, 17 rotor cylindrical bodys, 18 outlets, 19 crescent shape chambers among the figure.

Embodiment

Among the figure, rotor (1) is made up of rotor cylindrical body (17) and the blade (10) that slides on the rotor cylindrical body.The blade both sides install blade bearing (11).The circle center hole of rotor cylindrical body (18) and main shaft (8) are connected.Rotor (1) is contained in the pump housing (5), support and sealing by left end cap (4) and right end cap (7), main shaft (8) and left end cap (4), main shaft bearing (12) (13) on the right end cap (7) cooperates, rotor is eccentric the setting in the pump housing, its throw of eccentric is E (15), throw of eccentric makes and forms a crescent shape chamber (19) between the pump housing and the rotor, blade (10) is divided into little cavity volume with crescent shape chamber (19) again, on the pump housing at crescent shape chamber two ends, be provided with import (14) and outlet (18), on the end cap of the left and right sides, be provided with the pump housing in the concentric positioning runner (16) of circle, the blade bearing (11) that is fixed on the blade both sides is contained in the corresponding positioning runner (16).The curve of the shape of the pump housing (5) internal surface and blade (10) the cylindrical bus movement locus of blade when positioning runner (16) rotates is identical.Blade (10) is a Spielpassung with the pump housing (5) internal surface.Present technique is the technological improvement of existing vane pump, so other structure in present technique all can be selected existing vane pump technology for use, is not described in detail at this.When doing vapour, hydraulic motor use, the import input of this pump has the output shaft of pressing the vapour-liquid body to make the main shaft rotation make motor to get final product, and the structure of present technique is constant.

Claims

1, a kind of nothing friction vane pump, has the pump housing, the rotor that one throw of eccentric is arranged with the pump housing is installed in the pump housing, this rotor is made up of rotor cylindrical body and several blades of radially sliding on the rotor cylindrical body, rotor and main shaft are connected, and main shaft is contained on the end cap of the left and right sides by main shaft bearing, it is characterized in that: left and right sides end cap be provided with the pump housing in the concentric positioning runner of circle, blade bearing is equipped with in the both sides of blade, the connection of rolling in positioning runner of this blade bearing.