CN201273286Y

CN201273286Y - Reamer smashing delivery pump

Info

Publication number: CN201273286Y
Application number: CNU200820186234XU
Authority: CN
Inventors: 刘德华
Original assignee: XINGHUA SUZHOU PUMP MANUFACTURE CO Ltd
Current assignee: XINGHUA SUZHOU PUMP MANUFACTURE CO Ltd
Priority date: 2008-10-15
Filing date: 2008-10-15
Publication date: 2009-07-15
Anticipated expiration: 2018-10-15

Abstract

The utility model discloses a cutter grinding transfer pump, which comprises a pump body, a pump cover, an impeller, a sealing ring, a static knife and a pump shaft, wherein the static knife is arranged on a water inlet of the pump body, the impeller is fixed on the pump shaft, and a moveable knife is further arranged on the pump shaft between the water inlet of the pump body and the impeller, and the static knife and the moveable knife form a pair of cutters. The cutter disintegrates sewage which is not grinded by the impeller and a vane of a transfer pump, an impeller of a centrifugal pump is a closed-type impeller, which improves transport efficiency of a pump, reduces the abrasion and changing frequency of the impeller, can adjust and control the gap between the static knife and the moveable knife and compensate the gap generated because of abrasion, a pump group is not needed to be disassembled, the maintenance is simple and convenient, and grinding effect is excellent.

Description

Reamer is pulverized transfer pump

Technical field

The utility model relates to a kind of transfer pump, relates in particular to a kind of reamer and pulverizes transfer pump

Background technique

The general transfer pump of pulverizing exists volume big, noise is big, consumed power is big, inconvenient maintenance, problems such as crushing effect is not fine, carry pump structure generally to adopt half-opened impeller or full-open type impeller for addressing the above problem present pulverizing, inlet edge of impeller blade is processed as the cutting of the paired dirt of quiet knife-edge of blade and pump inlet setting, as the patent No. is that the disclosed macerator pump of 98223916.5 utility model patents is all to increase blade on each blade of impeller on the basis of former centrifugal pump with open impellerpump, and between blade and axle center, establish fly cutter, be provided with preceding cutter in the water inlet,, make dirt pulverize through the cutting of preceding cutter and blade.The patent No. is the disclosed a kind of fluid macerator pumps of 97230223.9 utility model patents for another example, be to adopt the standard-sized sheet aial flow impeller, the inlet side of impeller and the cutting of preceding cutter, blade cylindrical and the peripheral steel loop cutting that is provided with, hole, the rear net cutting of exit edge of blade and steel loop is for pulverizing thorough impeller blade by netting continuous three pulverizing with the steel loop and the outlet hole of front cutting edge, cylindrical.Because the limitation of structural design can only adopt unshrouded impeller, efficient is not high; Unshrouded impeller should cut dirt and carry dirt sewage again, damages easily and because the damage of impeller blade influences the transportation performance of water pump, recoverability is poor, inconvenient maintenance; Be to improve the material and the processing request height of crushing effect impeller, make, maintenance cost is very high.

Summary of the invention

The purpose of this utility model provides a kind of by the existing conscientiously pulverizing to dirt of reamer strand, centrifugal pump impeller is only carried sewage, does not participate in the cutting and grinding to dirt, but centrifugal pump impeller adapted double shrouded wheel, can improve pump efficiency greatly, reduce the wearing and tearing of impeller and change the frequency; Can regulate the gap between quiet cutter group of control and movable cutter set arbitrarily and compensate the gap that produces owing to wearing and tearing by screw thread; Need not to dismantle the pump group, safeguard reamer pulverizing transfer pump simple and convenient, good crushing effect.

The utility model is achieved through the following technical solutions: reamer is pulverized transfer pump, comprise the pump housing, pump cover, impeller, seal ring, quiet cutter, pump shaft, described quiet cutter is arranged on pump housing water inlet, described impeller is fixed on the pump shaft, also be provided with moving knife on the pump shaft between pump housing water intake and the impeller, described quiet cutter and moving knife form a pair of reamer.

Described quiet cutter is arranged on the static knife rack, and described static knife rack is movably connected in pump housing water inlet.

Described impeller is a double shrouded wheel.

Described moving knife, impeller are fixed on the pump shaft by key and nut respectively.

The quiet cutter of described reamer and the cutter head number of moving knife can be set to more than two or two.

Described static knife rack is threaded in pump housing water inlet, and passes through screw.

When the utility model was the work of reamer pulverizing transfer pump, moving knife and impeller rotated together, by the existing conscientiously sewage to conveying of dynamic and static cutter strand, the pulverizing of dirt.The utility model is advancing the cutting of people's dirt by reamer from water intake, make dirt pulverizing back and sewage discharged from pump discharge by the impeller centrifugal action, pulverize and the conveying effect thereby play, because reamer is pulverized thinner to dirt, impeller blade does not participate in pulverizing dirt, centrifugal pump impeller adapted double shrouded wheel can improve pump efficiency greatly, reduces the wearing and tearing of impeller and changes the frequency; Moving knife, quiet cutter are reusable; Regulate gap between control quiet cutter group and movable cutter set and compensation arbitrarily because the gap that wearing and tearing produce need not to dismantle the pump group by screw thread, safeguard simple and convenient, good crushing effect, pump manufacturing, maintenance cost are low, the energy saving and cost lowering effect is obvious.

Description of drawings

Accompanying drawing 1: for reamer is pulverized transfer pump structure master cut-away view;

Accompanying drawing 2: for reamer is pulverized the right diagrammatic sketch of transfer pump structure;

Accompanying drawing 3: for reamer is pulverized transfer pump moving knife master cut-away view;

Accompanying drawing 4: be the plan view of accompanying drawing 3;

Accompanying drawing 5: for reamer is pulverized the quiet cutter figure of transfer pump;

Accompanying drawing 6: for reamer is pulverized the transfer pump static knife rack adjusting figure that is threaded.

Label declaration among the figure: the 1-pump housing; The 2-pump cover; The 3-impeller; The 4-seal ring; The quiet cutter of 5-; The 6-static knife rack; The 7-moving knife; The 8-key; The 9-nut; The 10-pump shaft; The 11-screw.

Embodiment

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

Referring to accompanying drawing 1-6, a kind of reamer is pulverized transfer pump, comprises the pump housing 1, pump cover 2, impeller 3, seal ring 4, quiet cutter 5, pump shaft 10 etc., and described quiet cutter 5 is fixed on the static knife rack 6 by screw 11, described static knife rack 6 is threaded in pump housing water inlet, and fixing by screw 11; Described impeller 3 is a double shrouded wheel, is fixed on the pump shaft 10 by nut 9; Also be provided with moving knife 7 on the pump shaft 10 between pump housing water intake and the impeller 3, described moving knife 7 is fixed on the pump shaft 10 by key 8, and described quiet cutter 5 is four with the cutter head number of moving knife 7, forms a pair of reamer.

During work, moving knife 7 and impeller 3 rotate together, by moving knife 7, the existing conscientiously sewage to conveying of quiet cutter 5 strands, the pulverizing of dirt.The utility model is the cutting of the dirt that enters from water intake by reamer, make dirt pulverizing back and sewage discharged from pump discharge by the centrifugal action of impeller 3, pulverize and the conveying effect thereby play, because reamer is pulverized thinner to dirt, impeller blade does not participate in pulverizing dirt, centrifugal pump impeller adapted double shrouded wheel can improve pump efficiency greatly, reduces the wearing and tearing of impeller and changes the frequency; Regulate the gap of 7 of control quiet cutter 5 and moving knife and compensation arbitrarily because the gap of wearing and tearing generation need not to dismantle the pump group by screw thread, safeguard simple and convenient, good crushing effect.Moving knife, quiet cutter are reusable, regulate gap between moving knife and quiet cutter by the static knife rack connecting thread, guarantee crushing effect, and maintenance cost is low, and the energy saving and cost lowering effect is obvious.

Claims

1, reamer is pulverized transfer pump, comprise the pump housing (1), pump cover (2), impeller (3), seal ring (4), quiet cutter (5), pump shaft (10), described quiet cutter (5) is arranged on pump housing water inlet, described impeller (3) is fixed on the pump shaft (10), it is characterized in that: also be provided with moving knife (7) on the pump shaft (10) that is positioned between pump housing water intake and the impeller (3), described quiet cutter (5) forms a pair of reamer with moving knife (7).

2, reamer according to claim 1 is pulverized transfer pump, and it is characterized in that: described quiet cutter (5) is arranged on the static knife rack (6), and described static knife rack (6) is movably connected in pump housing water inlet.

3, reamer according to claim 1 is pulverized transfer pump, and it is characterized in that: described impeller (3) is a double shrouded wheel.

4, pulverize transfer pump according to claim 1,2 or 3 described reamers, it is characterized in that: described moving knife (7), impeller (3) are fixed on the pump shaft (10) by key (8) and nut (9) respectively.

5, pulverize transfer pump according to claim 1,2 or 3 described reamers, it is characterized in that: the quiet cutter (5) of described reamer and the cutter head number of moving knife (7) can be set to more than two or two.

6, reamer according to claim 2 is pulverized transfer pump, and it is characterized in that: described static knife rack (6) is threaded in pump housing water inlet, and fixing by screw (11).