Summary of the invention
The utility model purpose is: a kind of flexible impeller vane pump is provided, adopt flexible impeller, the eccentric installation, the volume during rotation between the adjacent blades changes, thereby sucks or drain, not only simple in structure, processing request is low, and easy for installation, reliability is high.
The technical solution of the utility model is: a kind of flexible impeller vane pump, comprise the stator case that is positioned at pump case, end cap with the stator case sealing, be located in the pump shaft in pump case and the stator case, liquid entering hole that is communicated with stator case and liquid outlet, described pump shaft deflection liquid outlet ground and stator case are eccentric to be installed, be fixed with the flexible impeller that is positioned at stator case on the pump shaft, the external diameter of the blade of flexible impeller is greater than the internal diameter of stator case, the outer rim of blade and the inner wall sealing of stator case, the both ends of the surface of flexible impeller respectively with the sealing of the interior edge face of stator case and end cap, make the cavity that forms sealing between adjacent two blades.
The further technological scheme of the utility model is: a kind of flexible impeller vane pump, comprise the stator case that is positioned at pump case, end cap with the stator case sealing, be located in the pump shaft in pump case and the stator case, liquid entering hole that is communicated with stator case and liquid outlet, described pump shaft deflection liquid outlet ground and stator case are eccentric to be installed, be fixed with the flexible impeller that is positioned at stator case on the pump shaft, the external diameter of the blade of flexible impeller is greater than the internal diameter of stator case, the outer rim of blade and the inner wall sealing of stator case, the both ends of the surface of flexible impeller respectively with the sealing of the interior edge face of stator case and end cap, make the cavity that forms sealing between adjacent two blades; Described flexible impeller comprises by key pin and is fixed on impeller set on the pump shaft, several blades that impeller set is provided with is integrated, outward radial extends, and the external end head of blade is the semi-cylindrical shape.
The more detailed technological scheme of the utility model is: the further technological scheme of the utility model is: a kind of flexible impeller vane pump, comprise the stator case that is positioned at pump case, end cap with the stator case sealing, be located in the pump shaft in pump case and the stator case, liquid entering hole that is communicated with stator case and liquid outlet, described pump shaft deflection liquid outlet ground and stator case are eccentric to be installed, be fixed with the flexible impeller that is positioned at stator case on the pump shaft, the external diameter of the blade of flexible impeller is greater than the internal diameter of stator case, the outer rim of blade and the inner wall sealing of stator case, the both ends of the surface of flexible impeller respectively with the sealing of the interior edge face of stator case and end cap, make the cavity that forms sealing between adjacent two blades; Described flexible impeller comprises by key pin and is fixed on impeller set on the pump shaft, several blades that impeller set is provided with is integrated, outward radial extends, and the external end head of blade is the semi-cylindrical shape; Be respectively equipped with circular convex tendon on the both ends of the surface of described impeller set, be respectively equipped with the bar shaped convex tendon on the both ends of the surface of blade, the outer end of bar shaped convex tendon extends to the termination of blade, the inner is connected with circular convex tendon.
The utility model advantage is:
1. because the utility model adopts flexible impeller, the eccentric installation in deflection liquid outlet ground, make the cavity that forms sealing between adjacent two blades of flexible impeller, and this cavity volume the time near the liquid entering hole position increase and suck liquid, volume-diminished and drain near the liquid outlet position time.
2. the blade termination of flexible impeller of the present utility model is the semi-cylindrical shape, help blade and stator case inner wall sealing, and the both ends of the surface that the both ends of the surface of impeller set are provided with circular convex tendon, blade are provided with the bar shaped convex tendon, the both ends of the surface that help impeller respectively with the interior edge face sealing of stator case and end cap.
Embodiment
Embodiment: as Fig. 1, shown in Figure 2, a kind of flexible impeller vane pump, comprise the stator case 2 that is positioned at pump case 1, end cap 3 with stator case 2 sealings, be located in the pump shaft 4 in pump case 1 and the stator case 2, liquid entering hole 5 that is communicated with stator case 2 and liquid outlet 6, liquid entering hole 5 and liquid outlet 6 all are positioned on the interior edge face of stator case 2, and symmetric arrangement on diametric(al), described pump shaft 4 deflection liquid outlet 6 ground and stator case 2 eccentric installations, be fixed with the flexible impeller 7 that is positioned at stator case 2 on the pump shaft 4, flexible impeller 7 can be made of rubber material, flexible impeller 7 comprises by key pin and is fixed on impeller set 9 on the pump shaft 4, impeller set 9 is provided with integrated, several blades 8 that outward radial extends, the external end head of blade 8 is the semi-cylindrical shape, be respectively equipped with circular convex tendon 10 on the both ends of the surface of impeller set 9, be respectively equipped with bar shaped convex tendon 11 on the both ends of the surface of blade 8, the outer end of bar shaped convex tendon 11 extends to the termination of blade 8, inner and circular convex tendon 10 is connected, the external diameter of blade 8 is greater than the internal diameter of stator case 2, the inner wall sealing of the outer rim of blade 8 and stator case 2, the both ends of the surface of flexible impeller 7 respectively with the sealing of the interior edge face of stator case 2 and end cap 3, make the cavity that forms sealing between adjacent two blades 8.
Because the utility model adopts flexible impeller 7, the eccentric installation in deflection liquid outlet 6 ground, make the cavity that forms sealing between adjacent two blades 8 of flexible impeller 7, and this cavity volume the time near liquid entering hole 5 positions increase and suck liquid, volume-diminished and drain near liquid outlet 6 positions the time; Blade 8 terminations of flexible impeller 7 of the present utility model are the semi-cylindrical shape, help blade 8 and stator case 2 inner wall sealings, and the both ends of the surface that the both ends of the surface of impeller set 9 are provided with circular convex tendon 10, blade 8 are provided with bar shaped convex tendon 11, the both ends of the surface that help impeller 7 respectively with the interior edge face sealing of stator case 2 and end cap 3.
The utility model is not only simple in structure, processing request is low, and easy for installation, reliability is high.