CN86209107U

CN86209107U - Miniature whirl type water pump

Info

Publication number: CN86209107U
Application number: CN 86209107
Authority: CN
Inventors: 邱柏康
Original assignee: Fenghua Daily Machinery & Electronic Apparatus Experiment Factory Haishu Ningb
Current assignee: Fenghua Daily Machinery & Electronic Apparatus Experiment Factory Haishu Ningb
Priority date: 1986-11-13
Filing date: 1986-11-13
Publication date: 1987-05-27

Abstract

The utility model discloses a miniature vortex type water pump. An improved design is made to an impeller structure and the pump body of the pump. The utility model satisfies the requirements of less power consumption, high lifting range, and large flow quantity. The utility model has the advantages of light weight, corrosion resistance, small noise, and low cost, if the plastic material is adopted to make. The miniature vortex type water pump is suitable for the working situation of lower motor rotating speed, if the pump is used with the household washing machine to make the machine also has the function of draining upward, which can be used for shower, feedwater, etc., in order to add the function of the washing machine.

Description

Miniature whirl type water pump

The utility model relates to a kind of vortex type vane pump that draws water that is applicable to.

The present vortex type pump that uses, referring to " the nineteen eighty-three version P311 of Paddle Pump Designing handbook China Machine Press, " vane pump calculates and structure " version P360 in 1981, described design is because the blade of impeller is short, the effective swept volume of pump chamber that can utilize is little, water is few in the chamber, the water that produces overvoltage is also few, and side opening is little in suction port and the exhaust port, and water intake velocity is fast, the bump loss is big, runner shallow water amount is replenished not enough, is easy to generate cavitation, and efficient is not high, lift, flow, relatively poor ， And of the combination property of power consumption and the motor speed that requires adapted usually are more than per minute 2750 changes.

The purpose of this utility model provides a kind of pump that improves structure.It can satisfy the slow-speed of revolution, flow is big, lift is higher, low in energy consumption performance characteristic requirement, has overcome to have the relatively poor shortcoming of combination property in the prior art.

The purpose of this utility model is achieved in that at first, impeller is selected pawl formula structure for use, dwindles wheel hub and adds linear leaf, and effective swept volume of pump chamber is increased, effective swept volume of the present utility model reaches 3/4ths of pump chamber, thereby might produce the water of more overvoltage.Fold angle type impeller particularly, water is through leading on the blade inclined-plane, and towards the side runner position reflection on both sides, directivity is stronger.Secondly, the open loop shape side runner that leave the pump housing two inboards is etc. dark, and the top of side runner begins from the suction port outer rim, groove width is constant, along garden Zhou Erhang, shrinks to pump housing axis direction gradually to its end portion runner, narrowed width ends on the outer rim position of exhaust port.Have an auxiliary flow that communicates with it on the suction port next door, also have an auxiliary flow that communicates with it on the next door of exhaust port.Like this, the runner capacity increases, and the flow velocity of water also has raising at the flow field end place, thereby it is little to have remedied small size impeller situation lower blade linear velocity, inefficient defective.

Compare with existing vortex type pump, when equal-wattage, the design's product has that rotating speed is low, and flow is big, the characteristics that lift is high.After main part in addition adopted plastics to make, simple in structure in addition, part was few, in light weight in addition, and volume is little, and is corrosion-resistant, and noise is little, and cost is low, safeguarded and be easy to microminiaturized advantage easily.

The motor speed of this water pump adapted is low, is particularly suitable for domestic washing machine supportingly, increases upwards drain function, can be used for shower, feedwater etc., thus enlarged application area.

This water pump also can use for the occasion of other multiple liquid transports.

Be further described below in conjunction with drawings and Examples:

Fig. 1 is the water pump structure schematic representation

Fig. 2 is the plan view (impeller is illustrated to provide in the drawings) of pump housing suction port one side

Dark side runner generalized sections such as Fig. 3 is (situation of Zhan Zhihou)

Fig. 4 is the auxiliary flow generalized section

Fig. 5 is the form of garden arc formula impeller

Fig. 6 is the form of fold angle type impeller

Water pump structure shown in Figure 1 is a most preferred embodiment of the present utility model, it can with the domestic washing machine adapted.

The pump housing (2) forms pump chamber by the left and right sides pump housing by tapping screw (15) the ， And that links together.Impeller (1) is housed in the pump chamber, and impeller (1) is contained on the axle (9), is being with by axle (9) and is rotating.Water enters pump chamber from suction port (4), stir motion down at blade, because the leading role of two plane of inclination of blade, water is pressed into side runner (3) and produces vortex, flows along side runner (3), water constantly gathers strength, water is supercharging gradually at the volley, and side runner in pump chamber (3) is symmetrical, and the bump loss of water is less, the water exhaust port place that flows through under elevated pressures, being stressed promotes to extrude from exhaust port (6).The position of blade on impeller (1) is that to press impeller (1) radial direction sweptback, two kinds of forms wherein are shown in Fig. 5,6, garden arc formula impeller (Fig. 5) be blade not with the form of knuckle, two kinds of structures can both be strengthened the overvoltage pressurization and the baroreflex effect of water in pump chamber of water effectively.The auxiliary flow (5) on suction port next door communicates with suction port (4), can reduce and prevent cavitation, raises the efficiency, and auxiliary flow (7) communicates with exhaust port (6), then helps to increase flow.

The design's micro plastic water pump, when the adapted rotating speed of motor is considered by 1300 ± 100 rev/mins, flow 20-30 liter/minute, lift is greater than 4-6 rice, and rated power 20-30 watt, the gross weight 375 of water pump restrains, and blade quantity is advisable with no more than 18.

Water pump of the present utility model can adopt metallic material or plastic materials to make.Select different materials according to the different parts of water pump in the present embodiment: the pump housing (2), pump cover (8) is used ABS plastic, and impeller (1) is with strengthening polyoxymethylene, can proof strength, again can weight reduction, and also easy to process.Bearing (10,11) can be worked under the oil-free self lubrication situation with polyoxymethylene molybdenum disulfide blending material.Axle (9) is with 45 ^#Steel, the part via nitride is handled the back and is used the enhancing decay resistance in addition.Gland (13) is used A ₃Steel is made, and intensity is reliable.Tapping screw (15,16) outsourcing, leakproof is then selected synthetic rubber for use with seal ring (12) and drivign belt.

Claims

1, a kind of miniature vortex type water pump contains impeller, the pump housing, pump cover, axle, bearing, the pump housing can be divided into left and right sides pump housing two-part, and the inboard all has a side runner, is open loop shape, have a suction port on the pump housing, have an exhaust port on the right pump housing, it is characterized in that described impeller (1) is the ratchet wheel shape, its wheel hub is little, blade is long, and the cross section of blade is the Fangshan tee section, and the fore-end of blade bends forward; Side runner (3) is etc. dark, and the top of side runner (3) is positioned at the outer rim place of suction port (4), and groove width equates, be provided with along garden week, to end portion, runner shrinks to the pump housing (2) axis direction gradually, width diminishes simultaneously, ends on the outer rim position of exhaust port (6); Have an auxiliary flow that communicates with it (5) on the next door of suction port (4), have an auxiliary flow that communicates with it (7) on the next door of exhaust port (6).

2, according to the described miniature vortex type water pump of claim 1, it is characterized in that described impeller also can be the form of garden arc formula impeller, the fore-end of blade is pressed arc and is extended naturally.

3, according to claim 1 or 2 described miniature vortex type water pumps, it is characterized in that impeller (1) can use the plastics manufacturing, preferably select the enhancing acetal plastic for use.

4, according to the described miniature vortex type water pump of claim 1, it is characterized in that the pump housing (2) can use the plastics manufacturing, preferably select ABS plastic for use.