CN201176940Y

CN201176940Y - Submersible sewage pumps with cutting device

Info

Publication number: CN201176940Y
Application number: CNU2007200260235U
Authority: CN
Inventors: 蒋玉双; 丁涛; 侯伟达
Original assignee: ZIBO SHANQUAN INDUSTRY Co Ltd
Current assignee: ZIBO SHANQUAN INDUSTRY Co Ltd
Priority date: 2007-08-08
Filing date: 2007-08-08
Publication date: 2009-01-07
Anticipated expiration: 2017-08-08

Abstract

The utility model relates to a submersible sewage pump, belonging to the field of the non-variable displacement pump with viscous or uneven fluid. The pump comprises a vane wheel of the submersible sewage pump and a lower pump cover which is provided with a plum blossom shaped suction inlet. The pump is characterized in that at least one part of the end of each blade of the vane wheel is extended toward the suction inlet side to form a knife section. Cutter stators which are matched with the knife section are orderly, annularly and fixedly arranged on the side of the suction inlet of the lower pump cover corresponding to the knife section. Since the knife section is formed by the aerodynamic vane wheels, is of an integrated structure, and conforms to the fluid property, the pump has the advantages of simple structure, small vibration when working, equalized flow rate, and high efficiency.

Description

The submerged pump of band cutting device

Technical field

The utility model belongs to and is used for fluid is non-varactor pump viscosity or uneven field, specifically is a kind of submerged pump with cutting device.

Background technique

Therefore in industrial production, submerged sewage pump all is widely used in every profession and trade because it can satisfy many specific uses, and along with application, the structure of submerged pump also obtain constantly along with improvement perfect.When submerged pump is worked, the cotton yarn of Chang Youchang, the rope made of hemp, fibers such as shred, or other similar substance twines impeller when submerged pump is worked, influencing submerged pump works normally, also easily cause the damage of motor after impeller is twined by fiber when serious, as in order to prevent that fiber from twining impeller when submerged pump is worked, the technician has done structural improvement to such submerged pump, promptly install rotary cutter additional at the suction port place, shredded earlier when making long objects such as fiber enter pump chamber, guarantee the proper functioning of submerged pump with this, the pump of this class formation, embodiment is all arranged in the submerged pump of the multiple model of selling on market, and in use also obtain the user and approve preferably.But each model submerged pump that has cutting device of Xiao Shouing in the market, its cutting device is external additional type structure, be split-type structural with impeller promptly, several parts assemble, and vibrations were bigger when submerged pump was worked like this, the mass flow discrepancy weighing apparatus, efficient reduces, and finally causes the submerged pump shortening in working life, also needs the submerged pump of prior art is done further to improve for this reason, so that this pump is structurally more perfect, the working life of the prolongation submerged pump of maximum possible.

The model utility content

The purpose of this utility model is to solve above-mentioned deficiency of the prior art, and prior art is improved, and provides a kind of simple in structure, during work vibrations little, flow equalization, the submerged pump of the band cutting device that efficient is high.

For achieving the above object, the utility model is achieved through the following technical solutions:

Be a kind of submerged pump, comprise the impeller of submerged pump and have the following pump cover of plum blossom shape suction port that the present technique characteristics are that one of them part of each blade tip of impeller extends and constitute cutting blade to sucking oral-lateral with cutting device; In the suction port and the cutting blade respective side of following pump cover, fixedly install ledger-plate successively in the form of a ring with the cutting blade coupling.

The ledger-plate Equal round arranges, the gap between moving, the stationary knife can be 0.5mm～1.5mm.Like this when pump shaft rotates, between moving, stationary knife, just formed one " cutting section ".

The tapered structure in described ledger-plate end.

After the utility model improves prior art, because being the blade itself by streamline shape, cutting blade constitutes, be integral structure, meet fluid characteristics, therefore compare with the cutting device of traditional independent additional structure, have simple in structure, when work vibrations are little, flow equalization, the advantage that efficient is high.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described in further detail:

Fig. 1: the utility model structural representation.

Fig. 2: stationary knife mounting structure schematic representation.

Fig. 3: A-A is to structural representation among Fig. 2.

Fig. 4: B-B is to structural representation among Fig. 3.

Embodiment

As Fig. 1, Fig. 2, shown in Figure 3, the submerged pump of this band cutting device, comprise the impeller 1 of submerged pump and have the following pump cover 4 of plum blossom shape suction port, the present technique characteristics are that one of them part of each blade tip of impeller 1 constitutes cutting blade 2 to sucking the oral-lateral extension, suction port and cutting blade 2 respective side at following pump cover 4, fixedly install ledger-plate 3 successively in the form of a ring with cutting blade 2 couplings, ledger-plate 3 can be according to the blade shapes that is not all routine of Type of pump, also can be structures such as triangle, sickleshaped.The tapered as shown in Figure 4 structure in described ledger-plate 3 ends.

Each blade of impeller 1 can also all extend, and the blade-like structure is processed in the end of each blade according to the difference of Type of pump, constitutes cutting blade 2.

Moving, stationary knife can be distinguished Equal round and arrange, quantity also can adopt 2～9 groups respectively according to the difference of Type of pump, gap between moving, the stationary knife is reserved as 0.5mm～1.5mm, like this when pump shaft rotates, between moving, stationary knife, just formed one " cutting section ", avoided influencing the proper functioning of pump.

After the utility model improves prior art, consisting of because cutting blade is blade itself by streamline shape, is one Therefore body formula structure meets fluid behaviour, compares with the cutter sweep of traditional independent additional structure, has simple in structure, worker When doing vibrations little, flow equalization, the advantage that efficient is high.

Claims

1, a kind of submerged pump with cutting device, comprise the impeller of submerged pump and have the following pump cover of plum blossom shape suction port, one of them part that it is characterized in that each blade tip of impeller is extended to sucking oral-lateral, its outer end constitutes cutting blade, in the suction port and the cutting blade respective side of following pump cover, fixedly install ledger-plate successively in the form of a ring with the cutting blade coupling.

2, the submerged pump of band cutting device according to claim 1 is characterized in that ledger-plate Equal round layout on following pump cover.

3, the submerged pump of band cutting device according to claim 1 is characterized in that the tapered structure in ledger-plate end.

4, the submerged pump of band cutting device according to claim 1 is characterized in that leaving between cutting blade and the ledger-plate gap of 0.5mm～1.5mm.