CN2252251Y

CN2252251Y - Suspension water pump

Info

Publication number: CN2252251Y
Application number: CN 96218998
Authority: CN
Inventors: 吴贯友
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-09-17
Filing date: 1996-09-17
Publication date: 1997-04-16
Anticipated expiration: 2006-09-17

Abstract

The utility model relates to a suspension water pump which can work on water surface or under water. The utility model replaces a traditional motor casing with a plastic or metal motor casing. The casing forms a concave and convex shape and is fastened and connected with a motor stator through three or more than three installing ribs in inner convex type. The water pump suspends on water surface or immerses under water through additionally loading or reducing a supplementary casing to adjust suspension state. For motors with high power, blades are installed in a sealing chamber to accelerate heat radiation. Due to the adoption of the structure, the utility model has the advantages of good radiation effect, small size, light weight, and easy use and installation.

Description

Floated water pump

The utility model relates to a kind of electric driven pump that suspends, specifically a kind of electric water pump that is suspended in the water in liquid.

Water pump is used and is of long duration, and use is extensive, generally all is installed in the bank, water source, and suction sleeve is put into water.But use power to be subjected to landform like this, inhale degree system.The water pump that has is motor and water pump partial installation, has more increased the inconvenience of use, installation, migration, thereby adopts motor directly to be connected with the pump housing, utilizes buoyancy aid to put into water and uses, and has improved the power of water pump and the convenience of operation greatly.Begin to have occurred motor and be placed on the floating thing, pump is put into the structure of water, and motor is water contacting not, and its floating object is long-pending big, heavy., and then have motor can immerse in the water, pump is in surface layer of water work, the achievement in research that buoyancy aid is installed at the motor top is come out, as Chinese patent application: as described in the Submerged Motor Pumps ＂ of 88215209.2 ＂ band buoyancy aid.Develop the suspension water pump again in order more effectively to bring into play the water pump effect, as Chinese patent application number be: 87200927 ＂ float electric pump ＂; Application number is: 88104935 ＂ suspended pump ＂; Application number is: the double suction Under Water Pumps ＂ and the application number of 89204752.6 ＂ band buoyancy aid are: 90201169.3 ＂ suspended explosion-proof electric motor ＂.Except that ＂ float electric pump ＂ only soaks water pump in water, all be to immerse in water together with the pump housing motor that has a suspension structure or sink under water, its structure common point is: motor is installed in the water proof cover, the lower end is fixed on the mounting plate, water proof cover and mounting plate constitute the sealing buoyancy aid, motor shaft stretches out through the seal arrangement on the mounting plate, or adds an air chamber and one deck seal arrangement again, and axle directly is connected on the pump impeller.This levitated pump has improved overall efficiency, easy for installation, but its structure still can be simplified, overall weight has the possibility that alleviates, and, have the air layer of heat-conductive characteristic difference between motor and the outer cover, motor radiating efficient is lower, though motor is better than air by the mounting plate radiating effect, heat transfer area is too little after all.China's application number: 92206647.7 disclose ＂ floating motor ＂ technology, and electric machine structure is improved, and design has hole or the window that is shaped on vent hole at end cap.Specification is introduced, float over the motor of working in the liquid, also be mounted on the fixed plate, fixed plate and case constitute a seal, its motor stator is designed to without shell or with thin outer crust very, and motor stator is used, lower end cap directly is enclosed within on the silicon steel plate fixing.Also fan can be installed in closed chamber.Therefore its structure makes the interior temperature of seal even, helps heat radiation.Since motor stator need not or with thin outer crust very, the temperature difference of interior gas of its seal and extraneous liquid is big, radiating effect than the motor than extended envelope much better.But its motor exists with the extraneous gas blanket of poor thermal conduction that still has, so its structure still need be improved.

The utility model is for solving above-mentioned shortcoming, proposed a kind of simple in structure, in light weight, the floated water pump of good heat dissipation effect.

The purpose of this utility model realizes with following measure:

Designed floated water pump is made up of motor, seal arrangement, mounting plate, the pump housing, and seal arrangement is between the motor lower end and the pump housing, and motor comprises housing, stator, rotor, and electric machine main shaft directly links to each other with water pump vane via seal arrangement.Design has the installation muscle between electric machine casing inwall and the stator, has constituted the annulus of floated water pump between stator outer wall and the inner walls.

The utility model can also be realized with following measure:

The installation muscle of this floated water pump be integrally manufactured at the electric machine casing inwall convex tendon or be fixedly connected on the inner walls, constitute by three or three above convex claw-like structures, be the best with 4～8.Fixedly connected dovetail joint structure or other structures of can be.Between the installation muscle ring can be set also interconnects.

The electric machine casing of floated water pump can adopt the concavo-convex structure of inboard or the outside or about side, and with metal or plastics manufacturing, plastics can use polycarbonate (PC).

Motor top in the floated water pump can add cover plate.Motor shaft top can go out shaft extension, and cooling fan is installed.

For adjusting buoyancy, can install or reduce one section additional housing additional between electric machine casing top and the loam cake.

The utility model is said floated water pump compared to existing technology, its advantage is, improve electric efficiency except accomplishing motor directly to link to each other and directly keep afloat with the pump housing, shortened outside the unnecessary headloss, because its electric machine casing and motor stator fuse so that muscle to be installed, thereby need not add the floating-body cover structure in addition again, alleviate the weight of floated water pump.The motor heat mainly is directly to contact the outer liquid heat radiation of shell by muscle is installed by electric machine casing except that by the air heat radiation, good heat dissipation effect, and this is avoided motor to damage to improving electric efficiency, and it is highly beneficial working life to prolong water pump.Add and adopt the concave-convex type plastic casing, in to add the blade structure radiating effect better, weight can further alleviate, and has expanded the application area of suspension water pump.

Description of drawings is as follows:

Fig. 1 is the floated water pump sectional view of the utility model, is the A-0-A sectional view of Fig. 2.

Fig. 2 is the plan view of the utility model motor housing.

An electric machine casing that Fig. 3 simplifies and an embodiment of concavo-convex motor housing structure.

Fig. 4 is the B-B plan view of Fig. 3.

Fig. 5 electric machine casing with the structural representation that muscle is fixedlyed connected with dovetail joint is installed.

Fig. 6 installs between the muscle with the interconnective embodiment's reduced graph of ring.

Fig. 7 omits the schematic perspective view of outer casing for Fig. 6.

Be described further below in conjunction with accompanying drawing:

As can be seen from Figure 1, the utility model is made up of motor, seal arrangement 201, mounting plate 109 and the pump housing more than 301 parts.Electric machine casing 101 bottoms are the installation muscle 102 of interior dog formula structure, muscle is installed is adopted more than three or three, are preferably 4～8.Muscle end face and motor stator 103 are installed for fixedlying connected, for stable electrical machine stator more, the stator bottom also can be clamped on the lower housing portion boss, stator top is fixed on the interior ring platform of housing with cover plate 108, its motor stator is adorned motor housing no longer in addition, has reduced weight, and heat dispersing surface strengthens.The buoyancy that needs in light weight is little, has also just correspondingly dwindled the volume and weight of whole floated water pump.Because motor stator 103 is close to muscle 102 is installed, muscle is installed is the low liquid of temperature outward, the motor heat will distribute to liquid rapidly.For increasing radiating effect, when using the bigger motor of power, as this accompanying drawing, motor top can also be stretched out motor shaft, and a fans 106 is installed, and fans also is fixed on the interior ring platform of housing with retaining ring 107, and fans is stirred the sealing indoor gas and is circulated by muscle 102 spaces are installed, take away the heat that motor produces, dispel the heat to liquid by housing again.The plan view of electric machine casing 101 is seen Fig. 2.Electric machine casing 101 upper-end surfaces and loam cake 104 are tightly connected, and the lower end surface is connected with mounting plate 109, and hollow forms closed chamber 105, and the floating function of sealing chamber in liquid makes whole device become floated water pump.The motor lower portion main shaft directly is connected on the water pump vane 302 via the Sealing 202 of seal arrangement 201.

Electric machine casing 101 inboards or the outside or about side can be made concavo-convex structure, see Fig. 3,4 with the simplification mounting structure of motor.Muscle 102 structures are installed has increased the area of electric machine casing 101 to the liquid heat radiation, and this structural electromotor housing is integrally manufactured with muscle is installed.As seen from Figure 5, muscle 102 is installed also can be fixedlyed connected, as use dovetail joint with tenon shape structure with electric machine casing 101.Fig. 6,7 expresses another kind of structural type, is the cohesive force that muscle is installed in reinforcement, fastening motor stator, and design has ring 112 to interconnect between the installation muscle.Clear for illustrating, Fig. 7 has omitted outermost annulus layer sign.Generally speaking, connection makes the motor upper and lower end can no longer use other immobilising devices closely.

The utility model electric machine casing 101 can when making with plastics, be selected high temperature resistant, shock-resistant, ageing-resistant duroplasts for use, as select polycarbonate (PC) for use with metal or plastics manufacturing.Float over water surface at needs; Sink to the bottom; Use the pump housing instead; Increasing or reduce under the multiple situation such as annex, is to adjust suspending power, can be in loam cake 104 and electric machine casing 101 joints, install additional or additional housing 110 that minimizing matches with electric machine casing, and use the volume of adjustment closed chamber 105.

Claims

1, a kind of floated water pump, form by motor, seal arrangement 201, mounting plate 109, the pump housing 301, seal arrangement is between the motor lower end and the pump housing 301, motor comprises housing, stator, rotor, it is characterized in that having between electric machine casing 101 inwalls and the stator 103 muscle 102 is installed, constitute the annular space that suspends between stator 103 outer walls and the inner walls.

2, floated according to claim 1 water pump is characterized in that installing muscle 102 and is integrally manufactured convex tendon in inner walls.

3, floated according to claim 1 water pump is characterized in that installing muscle 102 and is fixedly connected on the inner walls.

4, floated according to claim 1 water pump, it is characterized in that installing muscle 102 has ring to interconnect each other.

5, floated according to claim 1 water pump is characterized in that electric machine casing 101 inboards or the outside or the concavo-convex structure of about side.

6, floated according to claim 1 water pump is characterized in that installing muscle 102 and is made of three or three above convex claw-likes, is the best with 4～8.

7, floated according to claim 1 water pump is characterized in that motor top adds cover plate 108.

8, floated according to claim 1 water pump is characterized in that it being that stretch out on motor shaft top, and cooling fan 106 is installed.

9, floated according to claim 1 water pump is characterized in that electric machine casing 101 plastics manufacturing, and plastics can use polycarbonate (PC).

10, floated according to claim 1 water pump is characterized in that installing additional between electric machine casing 101 tops and the loam cake 104 or reducing one section additional housing 110.