CN2103673U - Multipurpose asynchronous motor axial-flow pump - Google Patents

Abstract

The utility model relates to a multipurpose asynchronous motor axial-flow pump, which comprises a base, a stator, a rotor block, a guide part, a bearing box, an axial thrust bearing, a bearing shim, a radial bearing, a power output shaft, a power output shaft cover, a bearing press cover, a guide vane, and a cushion ring. The utility model is characterized in that a rotor and a vane are integrated; the iron core of the stator and a three-phase winding are encapsulated into one unit by insulating material. The utility model can be used as a motor, and can also be used as an axial flow pump, eliminating the disappearance of power caused by leakage. The multipurpose asynchronous motor axial-flow pump has the advantages of simple structure, low failure rate, and low cost.

Description

Multipurpose asynchronous motor axial-flow pump

The utility model relates to a kind of multipurpose asynchronous motor axial-flow pump, and it both can convert electrical energy into mechanical energy and use as motor, and the rotation blade fluid pump that can make conveyance fluid again uses.

The basic structure of existing asynchronous motor is by fixing stator, rotor that freely rotates and marginal air gap three parts are formed, the main body of stator is unshakable in one's determination and three phase windings, winding is embedded in the equally distributed groove of interior circle unshakable in one's determination, rotor shaft and bearing fixing cover in two side ends, the defective of existing motor is: purposes is single, only uses as prime mover; When traffic overload, burn easily; The insulation degree is limited, and waterproof, protection against the tide, explosion-proof performance are poor.During with asynchronous motor and the supporting use of rotation blade fluid pump, need the coupling carry-over moment between the pto of motor and the pump shaft, the both is fixed on the same rigid foundation, motor also needs to be equipped with radiation fan, because pump shaft exposes to be easy to generate and sews, and need establish gland seal device for this reason.Equipment volume is big and heavy, and working link in service is many, breaks down easily.For overcoming above-mentioned deficiency, Chinese invention patent application number 87108186 discloses a kind of pump integrating electric motor with vane wheel, this invention is integrated motor and impeller, by the stator inboard impeller is arranged, the outside is made up of the cylindric solid of rotation that the excitation material of excitation effect constitutes, and has cancelled pump shaft, do the rotor rotation with solid of rotation, the acting in conjunction of blade and cylinder produces the lift conveyance fluid, and its shortcoming is to use as pump, can not use as motor.

The purpose of this utility model has provided a kind of multipurpose asynchronous motor axial-flow pump that asynchronous motor and pump are combined as a whole, and it both can be used as motor and has used, and can be used as axial-flow pump again and uses.

Asynchronous motor axial-flow pump is as shown in drawings by support 15, stator 14, rotor body, diversion division and bearing support 3, axial thrust bearing 4, bearing shim 5, radial bearing 6, pto 7, power take-off cover 8, bearing gland 9, guide vane 10, supporting rib 11, packing ring 12, air intake cover 17, air-strainer 18 is formed, it is characterized in that blade with rotor and axial-flow pump is combined as a whole or is combined into fabricated rotor body, this rotor body is by pto 7, supporting rib 11, rotor body wall 13, constitute with rotor blade 16, rotor body is with single magnetic material such as steel, iron or composite magnetic: copper steel, aluminum steel is made, pto and external isolation sealing, prevent to leak, the iron core of stator and three phase windings are packaged into an integral body with insulating material, to improve the sealed insulation performance of this machine, play waterproof, moistureproof, explosion-proof; The outlet protective housing 1 of this machine one end, air draft tube 2 are fixed by bolts on the flange of centrifugal pump shell and bearing support 3, and the air-strainer 18 of the other end, air intake cover 17 are fixed by bolts on the flange of diversion division and bearing support 3 successively.Feed the sinusoidal current of symmetry when staor winding after, produce rotating magnetic field, rotor body moves in a circle along the direction of magnetic field rotation.

The utility model is characterized in that compared with the prior art the function that had both had motor uses as prime mover, has the function of rotation blade fluid pump again, uses as pump; Because blade and rotor are combined as a whole, the therefore liquid that is transferred and enter the interior air of machine is entered by the entry end of this machine, in rotor body, exports from outlet end.Its advantage is: the phenomenon of stopping a leak, and simplify the structure and reduce the chance that breaks down, reduce maintenance expenses, reduce cost; Since the power loss that has reduced the friction of bearing packing and pump shaft and stopped a leak and cause, the efficient of raising pump; Liquid that the heat that produces in the machine is transferred or the absorption of air that enters, and outside the discharge machine, the equipment that effectively guarantees normally moves; When it uses as axial-flow pump, can be used as face-pumping use usually, also can be used as deep-well pump and use, also can put into water as submersible pump, the diving deep-well pump uses.

Description of drawings:

Accompanying drawing is the multipurpose asynchronous motor axial-flow pump structural representation.

Number in the figure: 1, outlet protective housing; 2, exhaust hood; 3, diversion division and bearing support; 4, axial thrust bearing; 5, bearing shim; 6, radial bearing; 7, pto; 8, power take-off cover; 9, bearing gland; 10, guide vane; 11, supporting rib; 12, packing ring; 13, rotor body wall; 14, stator; 15, support; 16, rotor blade; 17, air intake cover; 18, air-strainer.

Below in conjunction with description of drawings the utility model embodiment: outlet protective housing 1, exhaust hood 2 are fixed by bolts on the flange of diversion division and bearing support 3 successively, axial thrust bearing 4 is housed in this bearing support, bearing shim 5, radial bearing 6, bearing gland 9 is pushed down the radial bearing outer shroud, uses bolt; Power take-off cover 8 is fixed on the bearing gland 9; Pto 7 and external isolation sealing with outlet end prevent to leak; With bolt diversion division and bearing support 3 are fixed on packing washer 12 on the support 15; Rotor body is made up of pto 7, supporting rib 11, rotor body wall 13, rotor blade 16, and the rotor blade 16 in the rotor body is cast as one with rotor body, also can be connected and fixed by welding or with bolt; The setting of the supporting rib 11 on the rotor body increases with the minimizing of rotor blade 16, and increase with rotor blade and reduce, even cancellation; Air intake cover 17 is fixed by bolts on diversion division and the bearing support 3, and air-strainer 18 is fixed on air intake cover 17 inlet flanges.Rotor body is suspended in stator interior, can rotate freely, and each joint seals with insulating material, makes these facility that excellent sealing performance be arranged, and need take off power take-off cover 8 when this machine uses as asynchronous motor, this moment rotor blade 16, impeller 10 plays the fan effect; When this machine uses as submersible pump or diving deep-well pump, need add filter screen, prevent that foreign matter from entering, outlet end diversion division and bearing support outlet(discharge) flange are connected with pipeline at entry end diversion division and bearing support place; When this machine uses as general deep-well pump, need exit flow guide and bearing block flange are connected with lifting pipe, the outlet end pto is connected with the deep-well pump transmission shaft by coupling.When this machine uses as mixed flow pump, need to install mixed flow impeller additional at pto 7 ends.

Claims (4)

1, multipurpose asynchronous motor axial-flow pump is made up of support 15, stator 14, rotor body, diversion division and bearing support 3, axial thrust bearing 4, bearing shim 5, radial bearing 6, pto 7, power take-off cover 8, bearing gland 9, guide vane 10, diversion division and bearing support 18, packing ring 12, the rotor and the blade that it is characterized in that it are combined as a whole or are combined into the assembling type rotor body, and this rotor body is made of pto 7, supporting rib 11, rotor body wall 13 and rotor blade 16; The iron core of stator 14 and three phase windings are packaged into an integral body with insulating material, axial thrust bearing 4, bearing shim 5, radial bearing 6 are housed in this bearing support 3, bearing gland 9 is pushed down radial bearing outer shroud bolt, power take-off cover 8 is fixed on the bearing gland 9, power take-off cover 8 and external isolation sealing, outlet protective housing 1, exhaust hood 2 are fixed by bolts on the flange of diversion division and bearing support 3, air-strainer 18, air intake cover 17 is fixed by bolts on diversion division and the bearing block flange;

2,, it is characterized in that its rotor body can also can use composite magnetic copper steel, aluminum steel to make with single magnetic material steel or iron work according to the described axial-flow pump of claim 1;

3, when using as motor, it must take off power take-off cover 8 according to the described axial-flow pump of claim 1;

4,, it is characterized in that needing when this machine uses as mixed flow pump to install mixed flow impeller additional at pto 7 ends according to the described axial-flow pump of claim 1.

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