CN106640773A

CN106640773A - Centrifugal pump capable of automatically clearing impeller balance hole

Info

Publication number: CN106640773A
Application number: CN201610773563.3A
Authority: CN
Inventors: 李俊
Original assignee: Yangzhou Hardit New Materials Co Ltd
Current assignee: Yangzhou Hardit New Materials Co Ltd
Priority date: 2016-08-31
Filing date: 2016-08-31
Publication date: 2017-05-10

Abstract

The invention discloses a centrifugal pump capable of automatically clearing an impeller balance hole. The centrifugal pump comprises a motor, wherein one side surface of the motor is fixedly connected with a pump body; one side surface of the pump body is equipped with a cover body; a water outlet is formed in the upper surface of the cover body; a water inlet is formed in one side surface of the cover body; the output shaft of the motor passes through one side surface of the pump body and extends into the pump body; and the output shaft of the motor is movably connected with a pump shaft through a shaft coupler arranged inside the pump body. According to the centrifugal pump disclosed by the invention, the position of the water inlet is improved, so that the water inlet is opposite to the shaft center of an impeller, and water flow can directly impacts the balance hole, and therefore, a clearing rod can move under action of a spring to clear the blocked balance hole; a fixed plate is arranged, so that when the centrifugal pump works, the spring does not shake as a result of action of water flow; an upper spring seat can be arranged, so that the clearing rod can be borne; and the spring, the fixed plate and the clearing rod are arranged, so that the effect of clearing the impeller balance hole is achieved.

Description

A kind of centrifugal pump of impeller balance hole self-cleaning

Technical field

The present invention relates to Removal Technology field, specially a kind of centrifugal pump of impeller balance hole self-cleaning.

Background technology

Conveying the pump of liquid, centrifugal pump is rotated using impeller to the centrifugal force that centrifugal pump is produced when referring to and being rotated by impeller And make water that centrifugal motion to occur and carry out work；Water pump is before activation, it is necessary to makes in pump case and suction hose full of water, then starts electricity Machine, makes pump shaft impeller and water do high speed rotary motion, and water occurs centrifugal motion, is thrown toward impeller outer edge, Jing volute pump cases Runner flow into the pressure pipe road of water pump, impeller is the core of centrifugal pump, and its rotating speed height output power is big, and balance pipe is even more leaf The pith of wheel, when pump work is centrifuged, balance pipe clogging often occurs in Jing causes bearing running hot, and current centrifugal pump Centrifugal pump cleaning impeller can only be taken apart after impeller blocking, it is pretty troublesome, and muscle power is wasted, it is very inconvenient.

The content of the invention

It is an object of the invention to provide a kind of centrifugal pump of impeller balance hole self-cleaning, possesses cleaning impeller balance automatically The advantage in hole, solves balance hole plug, damages the problem of centrifugal pump.

For achieving the above object, the present invention provides following technical scheme：A kind of centrifugal pump of impeller balance hole self-cleaning, bag Include motor, the one side of the motor is fixedly connected with the pump housing, the one side of the pump housing is provided with lid, the lid it is upper Surface offers delivery port, and the one side of the lid offers water inlet.

The output shaft of the motor passes through the one side of the pump housing and extends to the inside of the pump housing, and the output shaft of the motor leads to Cross and be arranged on the shaft coupling of pump body and be flexibly connected with pump shaft, the surface of the pump shaft is from left to right socketed with successively sealing Circle, mechanical seal and sleeve pipe, the one side of the sealing ring is overlapped with the one side of mechanical seal, the mechanical seal it is another One end of side and sleeve pipe overlaps, and the surface of described sleeve pipe is from left to right socketed with successively baffle plate and impeller, and the one of the baffle plate Side is fixedly connected with lower spring cup, and the one side of the lower spring cup is fixedly connected with spring, and one end of the spring is fixed The one side for being connected with upper spring seat, the upper spring seat and lower spring cup is overlapped with fixed plate, the side of the fixed plate Face is fixedly connected with the one side of baffle plate, and the one side of the upper spring seat is fixedly connected with cleaning rod, and the one of the cleaning rod End is plugged on the inside of balance pipe, and the balance pipe is opened in the middle part of impeller, and the other end of described sleeve pipe is overlapped with fixed spiral shell Mother, the fixing nut is threadedly coupled by being arranged on the screw thread of pump shaft one end with pump shaft.

Preferably, the water inlet is located at the right of impeller, and water inlet is corresponding with the axle center of impeller.

Preferably, the quantity of the balance pipe is 3,5 or 7, the quantity of the cleaning rod and the number of balance pipe Amount is adapted.

Preferably, the size of the balance bore dia and the size of cleaning shank diameter are eight millimeters.

Preferably, the size of the inside diameter of described sleeve pipe is adapted with the size of pump shaft diameter.

Compared with prior art, beneficial effects of the present invention are as follows：

1st, the present invention has reached the effect of cleaning impeller balance hole by arranging spring, fixed plate and cleaning rod.

2nd, the present invention is by improving water inlet position, make water inlet just to impeller axle center at, current is directly impacted Balance pipe position, so that cleaning rod can be moved under the action of the spring, clears up the balance pipe of blocking, by arranging fixed plate, When making centrifugation pump work, spring will not be rocked because of the effect of current, by arranging upper spring seat, can carry cleaning rod.

Description of the drawings

Fig. 1 is schematic structural view of the invention；

Fig. 2 is the structural representation of part-structure front view of the present invention；

In figure：1 motor, 2 pump housings, 3 lids, 4 delivery ports, 5 water inlets, 6 shaft couplings, 7 pump shafts, 8 sealing rings, 9 mechanical seals, 10 Sleeve pipe, 11 baffle plates, 12 impellers, 13 lower spring cups, 14 springs, 15 upper spring seats, 16 fixed plates, 17 cleaning rods, 18 balance pipes, 19 Fixing nut.

Specific embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.

Fig. 1, a kind of centrifugal pump of impeller balance hole self-cleaning, including motor 1 are referred to, motor 1 drives the pump housing 2 to move, The one side of motor 1 is fixedly connected with the pump housing 2, and the one side of the pump housing 2 is provided with lid 3, and lid 3 is used for covering and protects internal Structure, the upper surface of lid 3 offers delivery port 4, and the one side of lid 3 offers water inlet 5.

Fig. 1-2 is referred to, the output shaft of motor 1 passes through the one side of the pump housing 2 and extends to the inside of the pump housing 2, motor 1 Output shaft is flexibly connected by being arranged on the shaft coupling 6 inside the pump housing 2 with pump shaft 7, and the surface of pump shaft 7 is from left to right socketed successively There are sealing ring 8, mechanical seal 9 and sleeve pipe 10, the one side of sealing ring 8 is overlapped with the one side of mechanical seal 9, the He of sealing ring 8 Sealing function is played in mechanical seal 9, prevents liquid from entering the pump housing 2, and another side and one end of sleeve pipe 10 of mechanical seal 9 are taken Connect, the size of the inside diameter of sleeve pipe 10 is adapted with the size of the diameter of pump shaft 7, and the surface of sleeve pipe 10 is from left to right socketed successively There are baffle plate 11 and impeller 12, sleeve pipe 10 is used for carrying baffle plate 11 and impeller 12, and water inlet 5 is located at the right of impeller 12, and intakes Mouthfuls 5 corresponding with the axle center of impeller 12, by the location improvement of water inlet 5, make water inlet 5 just to the axle center of impeller 12 at, make Current can directly impact the position of balance pipe 18, so that cleaning rod 17 can be moved under the effect of spring 14, it is flat that cleaning is blocked Weighing apparatus hole 18, the one side of baffle plate 11 is fixedly connected with lower spring cup 13, and the one side of lower spring cup 13 is fixedly connected with spring 14, One end of spring 14 is fixedly connected with upper spring seat 15, by arranging upper spring seat 15, can carry cleaning rod 17, upper spring seat 15 and the one side of lower spring cup 13 be overlapped with fixed plate 16, the one side of fixed plate 16 is fixed with the one side of baffle plate 11 and connected Connect, by arranging fixed plate 16, when making centrifugation pump work, spring 14 will not be rocked because of the effect of current, upper spring seat 15 One side be fixedly connected with cleaning rod 17, by arranging spring 14, fixed plate 16 and cleaning rod 17, reached cleaning impeller 12 The effect of upper balance pipe 18, one end of cleaning rod 17 is plugged on the inside of balance pipe 18, the quantity 3,5 of balance pipe 18 or 7, the quantity of cleaning rod 17 is adapted with the quantity of balance pipe 18, the size of the diameter of balance pipe 18 and the diameter of cleaning rod 17 it is big It is little to be eight millimeters, it is more convenient during cleaning, and cleaning rod 17 can afford hydraulic pressure, balance pipe 18 is opened in the table of impeller 12 Face, the other end of sleeve pipe 10 is overlapped with fixing nut 19, and fixing nut 19 is by being arranged on the screw thread and pump shaft 7 of the one end of pump shaft 7 Threaded connection, fixing nut 19 is fixed to impeller 12 so as to will not be moved.

When using, motor 1 is rotated and drives pump shaft 7 to rotate, so as to impeller 12 is rotated, by liquid by the inspiration of water inlet 5, Current promote cleaning rod 17 through balance pipe 18, and spring 14 compresses, and when balance pipe 18 is blocked, the diastole of spring 14 promotes cleaning Bar 17 is entered inside balance pipe 18, clears up balance pipe 18, while sealing function is played in sealing ring 8 and mechanical seal 9, prevents liquid Body enters the pump housing 2.

In sum：The centrifugal pump of the impeller balance hole self-cleaning, by the cooperation of spring 14 and cleaning rod 17, solves The problem of the blocking of balance pipe 18.

Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention And modification, the scope of the present invention be defined by the appended.

Claims

1. a kind of centrifugal pump of impeller balance hole self-cleaning, including motor（1）, it is characterised in that：The motor（1）One side It is fixedly connected with the pump housing（2）, the pump housing（2）One side be provided with lid（3）, the lid（3）Upper surface offer Delivery port（4）, the lid（3）One side offer water inlet（5）；

The motor（1）Output shaft pass through the pump housing（2）One side and extend to the pump housing（2）Inside, the motor（1）'s Output shaft is by being arranged on the pump housing（2）Internal shaft coupling（6）With pump shaft（7）It is flexibly connected, the pump shaft（7）Surface from a left side Sealing ring is socketed with successively to the right side（8）, mechanical seal（9）And sleeve pipe（10）, the sealing ring（8）One side and mechanical seal （9）One side overlap joint, the mechanical seal（9）Another side and sleeve pipe（10）One end overlap joint, described sleeve pipe（10）'s Surface is from left to right socketed with successively baffle plate（11）And impeller（12）, the baffle plate（11）One side be fixedly connected with lower spring Seat（13）, the lower spring cup（13）One side be fixedly connected with spring（14）, the spring（14）One end be fixedly connected There is upper spring seat（15）, the upper spring seat（15）And lower spring cup（13）One side be overlapped with fixed plate（16）, it is described Fixed plate（16）One side and baffle plate（11）One side be fixedly connected, the upper spring seat（15）One side be fixedly connected There is cleaning rod（17）, the cleaning rod（17）One end be plugged on balance pipe（18）Inside, the balance pipe（18）It is opened in Impeller（12）Surface, described sleeve pipe（10）The other end be overlapped with fixing nut（19）, the fixing nut（19）By setting Put in pump shaft（7）The screw thread and pump shaft of one end（7）Threaded connection.

2. the centrifugal pump of a kind of impeller balance hole self-cleaning according to claim 1, it is characterised in that：The water inlet （5）Positioned at impeller（12）Right, and water inlet（5）With impeller（12）Axle center at it is corresponding.

3. the centrifugal pump of a kind of impeller balance hole self-cleaning according to claim 1, it is characterised in that：The balance pipe （18）Quantity be 3,5 or 7, the cleaning rod（17）Quantity and balance pipe（18）Quantity be adapted.

4. the centrifugal pump of a kind of impeller balance hole self-cleaning according to claim 1, it is characterised in that：The balance pipe （18）The size and cleaning rod of diameter（17）The size of diameter is eight millimeters.

5. the centrifugal pump of a kind of impeller balance hole self-cleaning according to claim 1, it is characterised in that：Described sleeve pipe（10） Inside diameter size and pump shaft（7）The size of diameter is adapted.