CN102797698A

CN102797698A - Pump impeller

Info

Publication number: CN102797698A
Application number: CN2012100956571A
Authority: CN
Inventors: 李世煌; 王强
Original assignee: SUZHOU SHIQIANG FLUID Technology Co Ltd
Current assignee: Suzhou Qianshen Precision Mechanical and Electrical Industries Co., Ltd.
Priority date: 2012-04-01
Filing date: 2012-04-01
Publication date: 2012-11-28

Abstract

The invention provides a pump impeller. The pump impeller comprises a cover plate, a front blade and a rear blade, wherein a connecting part is arranged in the middle of the cover plate; the portable pump impeller is arranged on a power output shaft of an engine through the connecting part on the cover plate; the front end face of the cover plate is provided with at least three front blades at equal angles; the rear end face of the cover plate is provided with at least three rear blades at equal angles; the cover plate, the front blade and the rear blade are integrally formed; the front blade comprises a blade front end part and a blade rear end part; the blade rear end part is bent in the counter clockwise direction; and an included angle is formed between the blade front end part and the blade rear end part. According to the pump impeller, the conventional impeller structure is improved, so that a draining pump can reach a high lift just by using a single impeller. Therefore, the impeller can be directly installed on the power output shaft of the engine for use without a shaft coupling, so that the structure of a centrifugal pump can be greatly simplified.

Description

A kind of impeller of pump

Technical field

The present invention relates to the centrifugal pump fitting field, particularly a kind of impeller of pump.

Background technique

Water pump is before work, and the pump housing and intake pipe must jar full waters, relies on the impeller of high speed rotating afterwards; Can improve pressure in it thereby make liquid under the inertial centrifugal force effect, obtain energy, when the impeller quick rotation, blade impels water to rotate very soon; The water that is rotating flies to from impeller under action of centrifugal force, and after the water in the pump was dished out, the core of impeller formed vacuum area; The water at water source is pressed onto in the intake pipe through pipe network under the effect of atmospheric pressure (or hydraulic pressure) afterwards, and circulation endlessly just can realize continuous pumpage like this; Because the advantages such as conveying that it has is simple in structure, processing ease, flow are easy to regulate and be applicable to various special nature materials,, often at present adopt multistage centrifugal pump as shown in Figure 1 to draw water in order to reach certain effect of drawing water; So just need a plurality of impellers to be rotated; Therefore need coupling that a plurality of impellers are connected, thereby strengthened the complex structure degree of whole centrifugal pump greatly, make centrifugal pump not portable.

Summary of the invention

To above problem, the present invention improves existing blade wheel structure through a kind of impeller of pump of design; Therefore make draining pump adopt single impeller can reach very high-lift, use the said impeller of this patent to need not directly to use on the pto that coupling is installed in motor, thereby can simplify centrifugal pump structure greatly; For reaching this purpose, the present invention provides a kind of impeller of pump, comprises cover plate, front vane and rear blade; Have joint, said light impeller of pump to be installed in through the joint on the cover plate on the pto of motor in the middle of the said cover plate, the front-end face equal angles of said cover plate is provided with at least 3 front vanes; The ear end face equal angles of cover plate is provided with at least 3 rear blades; Said cover plate and front vane, rear blade are integrally formed, and said front vane comprises blade front end and blade rearward end, and said blade rearward end is along bending counterclockwise; Blade front end and blade rearward end have angle; Angle is 90 °-175 ° between said blade front end and the blade rearward end, adopts circular arc to be connected between said front vane blade front end and the blade rearward end, and said blade rearward end comprises free edge portion and back root part; Said back root part is along counterclockwise or clockwise direction bending; Free edge portion and back root part have angle, and angle is 15 °-175 ° between said free edge portion and the back root part, adopt circular arc to be connected between the free edge portion of said front vane blade rearward end and the back root part.

As further improvement of the present invention; Said handybilly uses impeller material to mould aluminium ZL205A as alloy; This patent adopts alloy to mould aluminium ZL205A as main rapidoprint; Because alloy is moulded aluminium ZL205A and had high mechanical property, therefore adopt it can improve the intensity and the mechanical property of whole impeller greatly as main material.

The present invention improves existing blade wheel structure through a kind of impeller of pump of design, utilizes the indoor current of front vane slosh pump of bending; Thereby can make the liquid in the pump chamber produce the spiral flow that flows to the rotation of pump protecgulum direction; Thereby the flow in the impeller front vane space is boosted, and it is higher that the centrifugal pump that make to adopt the said impeller of this patent and centrifugal pump at the same level are compared boost capability, thereby make pump discharge pressure higher; More stable; Therefore adopt single impeller can reach very high-lift, therefore use the said impeller of this patent to need not directly to use on the pto that coupling is installed in motor, thereby can simplify centrifugal pump structure greatly; Make centrifugal pump structure more light, be easier to use.

Description of drawings

Fig. 1 is existing draining pump internal structure schematic representation;

Fig. 2 is the structural representation of a kind of specific embodiment of the present invention;

Member among the figure is:

1, cover plate; 1-1, joint; 2, front vane; 2-1, blade front end;

2-2-1, free edge portion; 2-2-2, back root part; 3, rear blade;

Embodiment

Below in conjunction with accompanying drawing and embodiment detailed explanation is done in invention:

The present invention is through a kind of impeller of pump of design; Existing blade wheel structure is improved; Make draining pump adopt single impeller can reach very high-lift; Therefore use the said impeller of this patent to need not directly to use on the pto that coupling is installed in motor, thereby can simplify centrifugal pump structure greatly.

As a kind of specific embodiment of the present invention, the present invention provides structural representation a kind of impeller of pump as shown in Figure 2, comprises cover plate 1, front vane 2 and rear blade 3; In the middle of the said cover plate 1 joint 1-1 is arranged, said light impeller of pump is installed on the pto of motor through the joint 1-1 on the cover plate 1, because it is higher to make the centrifugal pump that adopts the said impeller of this patent and centrifugal pump at the same level compare boost capability; Pump discharge pressure is higher, and is more stable, therefore adopts single impeller can reach the lift of traditional multi-stage impeller; Therefore use the said impeller of this patent to need not can directly use on the pto that coupling is installed in motor, the front-end face equal angles of said cover plate 1 is provided with 6 front vanes 2, and the ear end face equal angles of cover plate 1 is provided with 5 rear blades 3; Said cover plate 1 is integrally formed with front vane 2, rear blade 3, and this patent can be provided with the front vane 2 and rear blade 3 of respective numbers according to producer's needs, and wherein front vane 2 numbers are best more than rear blade 3; Can make pressure balance before and after the blade like this, therefore can avoid, and then influence impeller axial seal because of axial pressure causes damage to impeller; And then reducing impeller working life, this external impeller increases rear blade 3 at the back, can make pressure balance as far as possible in the pump chamber; Thereby can improve the working life of sealing greatly, said front vane 2 comprises blade front end 2-1 and blade rearward end 2-2, and said blade rearward end 2-2 is along bending counterclockwise; Blade front end 2-1 and blade rearward end 2-2 have angle, and angle is 90 °-175 ° between said blade front end 2-1 and the blade rearward end 2-2, and this patent blade front end 2-1 and blade rearward end 2-2 can adopt any angle in 90 °-175 °; The effect and the design difficulty that adopt the different amount impeller to be produced are all different, and producer can reach as the case may be and make degree of difficulty and select, and the employing circular arc is connected between said front vane blade front end 2-1 and the blade rearward end 2-2; Thereby the resistance that can significantly reduce current improves the effect of drawing water, and said blade rearward end 2-2 comprises 2-2-1 of free edge portion and back root part 2-2-2, and said back root part 2-2-2 bends along clockwise direction; Can bend along clockwise direction between this patent free edge 2-2-1 of portion and the back root part 2-2-2 also and can adopt clockwise better effects if along bending counterclockwise, said free edge 2-2-1 of portion and back root part 2-2-2 have angle; Blade rearward end 2-2-1 adopts the bending design can significantly reduce the resistance of current, improves the effect of drawing water, and angle is 15 °-175 ° between said free edge 2-2-1 of portion and the back root part 2-2-2; This patent free edge 2-2-1 of portion and back root part 2-2-2 can adopt any angle in 15 °-175 °, and the effect and the design difficulty that adopt the different amount impeller to be produced are all different, and producer can reach the manufacturing degree of difficulty as the case may be and select; Adopt circular arc to be connected between the 2-2-1 of free edge portion of said front vane blade rearward end and the back root part 2-2-2; Improve the effect of drawing water thereby adopt circular arc to be connected the resistance that can significantly reduce current between the 2-2-1 of free edge portion and the back root part 2-2-2, said handybilly uses impeller material to mould aluminium as alloy, and this patent adopts alloy to mould mainly rapidoprint of aluminium ZL205A conduct; Alloy is moulded aluminium ZL205A as the high metallic material of mechanical property; Be used widely at space industry at present, this patent is said to be stated light impeller of pump and adopts this material, can improve the intensity and the mechanical property of whole impeller greatly.

The present invention utilizes the indoor current of front vane 2 slosh pump of bending; Thereby can make the liquid in the pump chamber produce the spiral flow that flows to the rotation of pump protecgulum direction, thereby the flow impeller front vane 2 spaces in is boosted, thus the centrifugal pump that adopts the said impeller of this patent and centrifugal pump at the same level to compare boost capability higher; Pump discharge pressure is higher; More stable, be a plurality of impellers of alternative multistage draining pump with the said impeller of single this patent, thereby can simplify centrifugal pump structure greatly; Make centrifugal pump structure more light, be easier to use.

The above only is preferred embodiment of the present invention, is not to be the restriction of the present invention being made any other form, and according to any modification or equivalent variations that technical spirit of the present invention is done, still belongs to the present invention's scope required for protection.

Claims

1. impeller of pump; Comprise cover plate (1), front vane (2) and rear blade (3); It is characterized in that: joint (1-1) is arranged in the middle of the said cover plate (1); Said light impeller of pump is installed on the pto of motor through the joint (1-1) on the cover plate (1); The front-end face equal angles of said cover plate (1) is provided with at least 3 front vanes (2), and the ear end face equal angles of cover plate (1) is provided with at least 3 rear blades (3), and said cover plate (1) and front vane (2), rear blade (3) are integrally formed; Said front vane (2) comprises blade front end (2-1) and blade rearward end (2-2); Said blade rearward end (2-2) is along bending counterclockwise, and blade front end (2-1) has angle with blade rearward end (2-2), and angle is 90 °-175 ° between said blade front end (2-1) and the blade rearward end (2-2); Adopt circular arc to be connected between said front vane (2) blade front end (2-1) and the blade rearward end (2-2); Said blade rearward end (2-2) comprises free edge portion (2-2-1) and back root part (2-2-2), and said back root part (2-2-2) is along counterclockwise or clockwise direction bending, and free edge portion (2-2-1) has angle with back root part (2-2-2); Angle is 15 °-175 ° between said free edge portion (2-2-1) and the back root part (2-2-2), adopts circular arc to be connected between the free edge portion (2-2-1) of said front vane (2) blade rearward end (2-2) and the back root part (2-2-2).

2. a kind of impeller of pump according to claim 1 is characterized in that: said handybilly uses impeller material to mould aluminium ZL205A as alloy.