CN2380730Y

CN2380730Y - Vertical centrifugal pump

Info

Publication number: CN2380730Y
Application number: CN 99213111
Authority: CN
Inventors: 柯谟义
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-08
Filing date: 1999-06-08
Publication date: 2000-05-31
Anticipated expiration: 2009-06-08

Abstract

The utility model relates to a vertical centrifugal pump which is an automotive liquid conveying pump. A pump direct connecting coupler, a bearing seat assembly, a water seal, a water sealing assembly, a pump body, an impeller, a water filtering head, etc. of the utility model are linearly assembled, so the utility model has the advantages of compact and firm structure and few easy damaged parts. The pump overcomes the defects of low throwing distance, large volume and heavy weight of axial flow pumps and the defects of requirements for special frame and water diversion in use, small flow quantity, etc. of centrifugal pumps. The utility model has the advantage of large flow quantity of the axial flow pumps and high throwing distance of the centrifugal pumps, and is suitable for being dragged by motors with different rotary speeds and different power. The utility model is suitable for conveying pasty liquid pieces with short fiber, mud, sand, etc.

Description

Vertical centrifugal pump

The utility model relates to two kinds of motor-driven infusion pumps, especially axial-flow pump and centrifugal pump.

Existing axial-flow pump is infusion channel with the pump line, make pump line, pump shaft contact fed sheet of a media, be easy to corrosion, and lift is low, fed distance is short, centrifugal pump needs special-purpose frame, and the operating rate height is joined the wire spring intake pipe of special-purpose bottom valve and anti-condition of high vacuum degree, need add diversion and the sealing of the pipe fitting that guarantees respectively to intake, the ability proper functioning, impeller channel is narrow, flow is little, meets the grains of sand and fibre object and easily stops up.

Goal of the invention of the present utility model provides a kind of and can overcome above-mentioned shortcoming, realizes the vertical centrifugal pump of big flow, high-lift, small volume, easy care.

For achieving the above object, the technical solution of the utility model comprise that pump machine direct connection idol part, bearing support assembly, water seal are closed, water-sealed component, impeller, the pump housing, rosehead, water outlet.Above-mentioned each parts all adopt the straight line assembling, and are succinctly firm.

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is the structural representation of present embodiment.

Fig. 2 is the longitudinal section schematic representation of pump machine coupling in the direct connection of pump machine shown in Fig. 1 idol part.

Fig. 3 is the vertical section structure schematic representation of bearing support assembly shown in Fig. 1.

Fig. 4 is the schematic representation of water seal arrangement vertical section structure shown in Fig. 1.

Fig. 5 is the assembling of longitudinal section, the mouth of a river shown in a Fig. 1 schematic representation

Fig. 6 is the impeller of notopodium formula shown in a Fig. 1 sectional arrangement drawing.

Vertical centrifugal pump described in the utility model is directly driven through pump machine direct connection idol part by motor; mounting or dismounting are convenient; connect motor on the motor frame (1) as shown in Figure 1; under connect bearing support (5); form the complete pump machine direct connection idol part of a cover by motor coupler (2) and pump coupling (3); by upper bearing (metal) (4); upper bearing bracket (5); pump shaft (6); pump shaft pillar (7); step (8); the bearing support assembly of the composition of lower bearing (9); play a part the protection pump shaft and regulate draft; by water-sealed component (10); water seal box (11); notopodium formula impeller (15) is formed the waterproof seal of independent completion; protect lower bearing (9) effectively; pump shaft (6); pump shaft pillar (7) is not subjected to the erosion of fed sheet of a media; the impeller of this pump (15) blade space is big; the involute spiral shell shape pump housing (14); inlet and outlet channel is short; particularly be fit to have the conveying of the paste liquid of short fibre and silt particle; water outlet (12) is furnished with on the outlet seat ring that water outlet retainer (13) is buckled in the pump housing (14); Drop-proof fast-assembling function is arranged; the pump machine direct connection idol part of this pump; the bearing support assembly; water seal arrangement; the pump housing (14) rosehead (17) adopts the straight line assembling; motor direct-drive pump shaft (6) drives the impeller (15) that is fixed on the pump shaft lower end and makes high speed rotating generation vacuum; suck fed sheet of a media by the ejection of water outlet assembly, reach the remote purpose of carrying of high pressure.

As showing of Fig. 2, pump machine link is made up of motor coupler (2), pump coupling (3), and motor coupler (2) is an AB type vee belt dual-purpose dish, interior delthyrium combined type coupling, adopt the triangle bayonet joint with pump coupling (3), good randomness and reliability are arranged.

Above-mentioned as shown in Figure 3 bearing support assembly is formed the complete rotating bearing system of a cover by upper bearing (metal) (4), upper bearing bracket (5), pump shaft (6), pump shaft pillar (7), step (8), lower bearing (9), upper bearing bracket (5), step (8) tooth are connected to the two ends of pump shaft pillar (7), the two ends shaft shoulder of pump shaft accurately is positioned by upper bearing (metal) (4), lower bearing (9) effectively to have eliminated axial float in the middle of the pump shaft pillar (7).

As shown in Figure 4, independence of notopodium composition that (11) and water-sealed component (10) and notopodium formula impeller are closed in water seal device that blocks water reliably, the moving-coil rubber pipe of water-sealed component (10) is pressed on the inner ring of lower bearing (9), fixed circle is pressed into water seal and closes in the water seal seat of (11), pump shaft (6) runs through wherein, by the silicon carbide plate of moving, fixed circle as sealing break-in face, for more reliable anti-leak, increased impeller notopodium as shown in Figure 6, impeller notopodium under high speed rotating closes (11) in water seal inner ring produces vacuum, constitutes the twice water shutoff with water-sealed component (10) and ensures.

As shown in Figure 5, water outlet (12) and water outlet retainer (13) cooperation are buckled on the outlet seat ring of the pump housing (14), and be quick reliable.

In like manner, except that above-mentioned optimum implementation, also can change the part size and the fitment material in addition of each unit, the motor that can be fit to different size drags, and can be fit to different occasions and use and the conveying that is fit to different fluidised form media.

Claims

1. vertical centrifugal pump comprises pump machine direct connection idol part, and parts such as bearing support assembly, water seal are closed, water-sealed component, impeller, the pump housing, rosehead, water outlet adopt straight line assembling, succinctly firm, it is characterized in that:

The direct even part of described pump machine is made up of motor frame (1), motor coupler (2) and pump coupling (3).The motor frame connects motor on (1), under connect bearing support (5), motor coupler (2) is A, Type B vee belt dual-purpose dish, adopts the triangle bayonet joint with pump coupling (3), and the relative dimensions that changes motor frame (1) and motor coupler (2) can be fit to the tipping of different size motor;

Described bearing support assembly is made up of upper bearing (metal) (4), upper bearing bracket (5), pump shaft (6), pump shaft pillar (7), step (8), lower bearing (9);

Connect motor frame (1) on the bearing support assembly, lower accepting water involution (11), it is middle with lower bearing (9) that pump shaft (6) bearings at both ends shoulder accurately is positioned upper bearing (metal) (4), because motor frame (1) and water seal are closed (11) bearing tang and are acted on upper bearing (metal) (4) and lower bearing (9), make pump shaft (6) eliminate axial float reliably, guaranteed the accurate location and the proper functioning of water-sealed component (10) and impeller (15).Pump shaft pillar (7) two ends tooth is connected in the middle of upper bearing bracket (5) and the step (8), and guarantees certain coaxality;

Described water seal is closed and is connected step (8) on (11), connects the pump housing (14), intermediate support water-sealed component (10) down;

Described water-sealed component (10), fixed circle is installed on water seal and closes in (11), and moving-coil is enclosed within outside the pump shaft (6), is pressed on lower bearing (9) inner ring, forms the high-pressure water flow isolated area, in case lower bearing (9) is by water erosion;

Described impeller (15) makes water seal close (11) inner chamber and produces the anti-reliably high pressure leaks guarantee of certain vacuum degree and water-sealed component (10) formation two roads for eliminating the notopodium formula structure of back-pressure during high speed rotating;

The described pump housing (14) particularly is fit to the conveying of the paste liquid of short fibre and silt particle for the moulding of short runner involute scroll casing type;

Described water outlet (12) is connected in the water outlet seat ring of the pump housing (14) for 90 ° of self-align plugs of swing angle of ready-package, by the locking of water outlet retainer, with Drop-proof.