The plastics magnetic drive pump
Technical field
The present invention relates to a kind of plastics magnetic drive pump, it can be widely used in chemical industry, petrochemical industry, chemical fibre, medicine, agricultural chemicals, metallurgy, electronics, plating, food, environmental protection etc.
Background technique
Existing magnetic drive pump majority is a straight connection type; the pump shaft of the magnetic drive pump of this structure is mounted in the two ends of pump case and separation sleeve; magnetic drive pump is when work; the rising of temperature and the increasing of pressure in the pump case; usually can cause the separation sleeve distortion; make and cause the collision of outer coupling and interior coupling, friction separation sleeve, outer coupling and interior coupling to damage, and then magnetic drive pump can't be worked.When component such as separation sleeve, outer coupling and interior coupling occur to damage, need repairing, when changing, existing magnetic drive pump need be pulled down motor or relevant pipeline, and this makes to maintenance of existing magnetic drive pump very inconvenient.In addition, the serviceability temperature of existing magnetic drive pump generally can not be above 80 ℃.
Summary of the invention
The object of the present invention is to provide anticorrosive, high temperature resistant, the long service life of a kind of use, easy to maintenance, the big plastics magnetic drive pump of carrying moment.
Plastics magnetic drive pump of the present invention, comprise pump case, motor, carriage, pump shaft, be installed in impeller and interior coupling on the pump shaft respectively, and outer coupling, interior coupling, be provided with separation sleeve between the outer coupling, middle body is installed on the ear end face of described pump case, the other end of middle body is equipped with suspension, in the chamber of body, the end that pump shaft is positioned at described suspension was equipped with described coupling during described pump shaft can be installed in rotationally, and suspension is fixed on the described carriage, described impeller adopts metallic material to make, its outer surface is coated with fiber-reinforced resin layer, and described separation sleeve adopts fiber-reinforced resin to make, and which is provided with the metal strengthening net, described pump shaft adopts metallic material to make, and its outer surface is coated with fiber-reinforced resin layer.
Plastics magnetic drive pump of the present invention, wherein said outer coupling is installed on the transmission shaft, and transmission shaft can be installed on the described suspension rotationally, and transmission shaft is positioned at the outer end of suspension coupling is installed, and coupling links to each other with the motor shaft of described motor.
On the end face of body, pump shaft adopted two sliding bearing installing and locating respectively during plastics magnetic drive pump of the present invention, wherein said separation sleeve adopted and be bolted to, and described transmission shaft adopts two rolling bearing installing and locating respectively.
Plastics magnetic drive pump of the present invention is coated with resin layer on the madial wall of wherein said pump case and described middle body.
Plastics magnetic drive pump of the present invention, wherein said interior coupling is coated with fluororesin.
Plastics magnetic drive pump of the present invention, wherein said middle body adopts bolt to be installed on the described pump case, and the thickness of described resin layer is 3mm-5mm.
Compare with existing plastics magnetic drive pump, plastics magnetic drive pump of the present invention in use, because middle body is installed on the ear end face of pump case, the other end of middle body is equipped with suspension, pump shaft can be installed in the chamber of middle body rotationally, the end that pump shaft is positioned at suspension is equipped with coupling, and suspension is fixed on the carriage.Therefore, magnetic drive pump carrying moment when work can act on the middle body, and this can improve the carrying moment of plastics magnetic drive pump of the present invention.Because impeller and pump shaft adopt metallic material to make, its outer surface is coated with fiber-reinforced resin layer, and separation sleeve adopts fiber-reinforced resin to make, and which is provided with the metal strengthening net.Make that related components is anticorrosive, resistance and high temperature resistance property increases substantially, its serviceability temperature can be brought up to 160 ℃, and related components can not occur deforms, because related components can not deform under the High Temperature High Pressure effect, thereby avoided outer coupling and interior coupling bump, the rub separation sleeve that causes, outer coupling and interior coupling to damage, and the plastics magnetic drive pump cisco unity malfunction that causes thus.When damaging appears in component such as separation sleeve, outer coupling and interior coupling, need repairing, when changing, only need pull down middle body and get final product, this feasible maintenance to magnetic drive pump becomes very convenient.So plastics magnetic drive pump of the present invention has anticorrosive, high temperature resistant, long service life, and is easy to maintenance, the big characteristics of carrying moment.
Other details of plastics magnetic drive pump of the present invention and characteristics can just can be cheer and bright by reading the embodiment hereinafter encyclopaedize in conjunction with the accompanying drawings.
Description of drawings
Fig. 1 is the main pseudosection of plastics magnetic drive pump structural representation of the present invention.
Embodiment
As shown in Figure 1, plastics magnetic drive pump of the present invention comprises pump case 1, motor, carriage 13, pump shaft 2 is installed in impeller 3 and interior coupling 4 on the pump shaft 2 respectively, and outer coupling 5, be provided with separation sleeve 6 between interior coupling 4, the outer coupling 5, on the end face of body 7, separation sleeve 6 adopted fiber-reinforced resin to make, and which is provided with the metal strengthening net during separation sleeve 6 adopted and is bolted to.Adopt fiber-reinforced resin to add the separation sleeve 6 that the metal strengthening net is made, but the pressure effect of withstand long term exposure 1.5MPa and indeformable.Body 7 in being equipped with on the ear end face of pump case 1, middle body 7 adopts bolt to be installed on the pump case 1.The other end of middle body 7 is equipped with suspension 8, pump shaft 2 adopts two sliding bearings 11 can be installed in rotationally in the chamber of middle body 7 respectively, pump shaft 2 adopts metallic material to make, and its outer surface is coated with fiber-reinforced resin layer, thereby has improved the corrosion resistance and the comprehensive mechanical intensity of pump shaft 2.The end that pump shaft 2 is positioned at suspension 8 is equipped with coupling 4, and interior coupling 4 is coated with fluororesin, and suspension 8 is fixed on the carriage 13.
Outer coupling 5 is installed on the transmission shaft 9, and transmission shaft 9 adopts two rolling bearings 12 can be installed in rotationally on the suspension 8 respectively, and transmission shaft 9 is positioned at the outer ends of suspension 8 coupling 10 is installed, coupling 10 link to each other with the motor shaft of motor (not drawing among the figure).
Be coated with resin layer 14 on the madial wall of pump case 1 and middle body 7, the thickness of resin layer 14 is 3mm-5mm, and impeller 3 adopts metallic material to make, and its outer surface is coated with fiber-reinforced resin layer 15, thereby has improved the corrosion resistance of pump case 1 and middle body 7.
Plastics magnetic drive pump of the present invention in use, the output shaft of motor can drag coupling 10 and rotate, coupling 10 makes transmission shaft 9 rotate, so, the outer coupling 5 that is installed on the transmission shaft 9 will rotate thereupon, and the coupling 4 that is arranged in separation sleeve 6 is rotated, interior coupling 4 drags pump shaft 2 again and rotates with the impeller 3 that is installed on the pump shaft 2, makes plastics magnetic drive pump of the present invention carry out work.
In addition, existing magnetic drive pump is different with the form structure and the installation dimension of IH centrifugal pump, IS centrifugal pump, is difficult to exchange use.And plastics magnetic drive pump of the present invention is identical with the form structure and the installation dimension of IH centrifugal pump, IS centrifugal pump, can exchange use.
Embodiment recited above is described preferred implementation of the present invention; be not that design of the present invention and scope are limited; do not breaking away under the design concept prerequisite of the present invention; common engineers and technicians make technological scheme of the present invention in related domain various modification and improvement; all should fall into protection scope of the present invention; the technology contents that the present invention asks for protection all is documented in claims.