CN201232653Y

CN201232653Y - Diving cutting dredge pump

Info

Publication number: CN201232653Y
Application number: CNU2008201096266U
Authority: CN
Inventors: 张强
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-04
Filing date: 2008-08-04
Publication date: 2009-05-06
Anticipated expiration: 2018-08-04

Abstract

The utility model discloses a diving cutting dredge pump which includes a pump body, a lengthened shaft of the motor of the pump body, a cutting device and an impeller; the cutting device is arranged at the upper end of the lengthened shaft and is connected with the impeller of the dredge pump by the lengthened shaft. The diving cutting dredge pump not only has the advantages of simple structure, small size, simple operation and convenient maintenance, but also is provided with the cutting device, thus playing excellent dredge effect.

Description

A kind of diving cutting dredge pump

Technical field

The utility model relates to a kind of pollution discharge pump, relates in particular to a kind of diving cutting dredge pump.

Background technique

Proof submersible sand discharging pump is succeeded in developing in 1956 by swedish company (Sterbery-Flygt) the earliest, be mainly used in small-bore waste pipe and contain scum silica frost, plastic article are denseer or long stapled sewage pumping station in.There are following characteristics in described pump: (1) adopts single current to impeller, and neither anti-obstruction can not prevent to twine, be difficult for again that balance, operation are not steady, reliability is low; (2) lack protection equipment; (3) there is not complete sets of equipment such as coupling installation and automatic control device automatically.

Existing proof submersible sand discharging pump blowdown is that sewage directly enters from the import of impeller, directly sent through the impeller and the pump housing, the defective of this structure is to run into the higher bore of discharging simultaneously of long fibre or magazine concentration ratio when less, can cause impeller to be wound or to stop up, thereby can not reach good filth-discharging effect.

Summary of the invention

For solving above-mentioned middle problem and the defective that exists, the utility model provides a kind of energy-saving environmental protection boiler.

The utility model is achieved through the following technical solutions:

A kind of diving cutting dredge pump that the utility model is related comprises: extension shaft, cutting device and impeller that the pump housing, the pump housing are provided with, described cutting device is arranged on the upper end of extension shaft, and is connected in the impeller of described pollution discharge pump by described extension shaft.

Described cutting device mainly comprises blade and cutterhead, described blade is arranged on the centre bottom position of described cutterhead, and contact described cutterhead with the joint place, axle center, gap of cutterhead by cemented carbide at described blade and comprise a plurality of cutting cutting edges, and described cutting cutting edge is a circular arc type.The impeller of described pollution discharge pump is provided with two open type blades and broad material feeding mouth, and the blade at described material feeding mouth place is set to the transition circle arcuation, and this material feeding mouth is arranged on the central position of impeller.The inner shaft core place of described extension shaft is provided with the stable pin of extension shaft.

The beneficial effect of the technological scheme that the utility model provides is:

Except the advantage of proof submersible sand discharging pump, carried out improving completely in the passing ability of the pump housing with to the cutting efficiency of foreign material, make the usage range of proof submersible sand discharging pump obtain very big expansion.

Description of drawings

Fig. 1 is the utility model structural drawing;

Fig. 2 is the utility model cutter head structure figure;

Fig. 3 is the utility model blade wheel structure figure.

Embodiment

For making the purpose of this utility model, technological scheme and advantage clearer, the utility model mode of execution is described in further detail below in conjunction with accompanying drawing:

As shown in Figure 1, diving cutting dredge pump mainly comprises extension shaft 2, cutting device and the impeller that the pump housing, the pump housing are provided with, and described cutting device is arranged on the upper end of extension shaft 2, and is connected in the impeller of described pollution discharge pump by described extension shaft 2.Described cutting device mainly comprises blade 11 and cutterhead 12, described blade 11 is arranged on the centre bottom position of described cutterhead 12, and contact by cemented carbide 13 with the joint place, axle center, gap of cutterhead 12 at described blade 11, reduce friction greatly, reduce temperature rise, prolonged the life-span, reduced the loss of power, because submersible pump is coaxial with motor shaft, so also be provided with motor for submerged pump shaft connection place 17 at the back side center position of the impeller of proof submersible sand discharging pump.As shown in Figure 2, described cutterhead 12 comprises a plurality of cutting cutting edges 14, and described cutting cutting edge 14 is a circular arc type, the circular arc center of circle is near the cutterhead center of circle, blade can move on to hard foreign material near the cutterhead circle centre position and cut off during cutting, thereby shortens resistance arm, has reduced the loss of power.Joint place, the center of circle at cutterhead 12 is correct grinding cemented carbide installation place, is provided with the stable pin of extension shaft mounting hole at the place, axle center.Described motor extension shaft and blade are slidingly matched, and transmit moment by square axis.

As shown in Figure 3, the impeller of diving cutting dredge pump is provided with open type two blade impeller 15 and material feeding mouth 16, and the blade at described material feeding mouth 16 places is set to the transition circle arcuation, and import strengthens; The cutter plate mouth strengthens, remove intake screen, outer pipe is an arc transition, twines blade to avoid foreign material, prevents to stop up, guaranteed passing through smoothly of foreign material, and described material feeding mouth 16 is arranged on the central position of impeller, finishes cutting by blade in the cutting device and cutterhead then by extension shaft, and described blade and cutterhead adopt the die steel manufacturing, guarantee hardness through heat treatment, prolonged physical life.

The utility model adopts two open type blades, strengthened the conveyance capacity of sewage dirt, and the blade and the cutterhead of cutting device have been increased, make long fibre dirt or plastic article by cutterhead and blade chopping like this, not only improved the working life of proof submersible sand discharging pump, and solved that impeller is wound or blocking problem, played good filth-discharging effect.

Though described the utility model by embodiment, those of ordinary skills know, the utility model has many distortion and variation and do not break away from spirit of the present utility model, and the claim of application documents of the present utility model comprises these distortion and variation.

Claims

1, a kind of diving cutting dredge pump comprises extension shaft, cutting device and impeller that the pump housing, the pump housing are provided with, it is characterized in that described cutting device is arranged on the upper end of extension shaft, and is connected in the impeller of described pollution discharge pump by described extension shaft.

2, diving cutting dredge pump according to claim 1, it is characterized in that, described cutting device mainly comprises blade and cutterhead, and described blade is arranged on the centre bottom position of described cutterhead, and contacts by cemented carbide with joint place, cutterhead axle center at described blade; Described cutterhead comprises a plurality of cutting cutting edges, and described cutting cutting edge is a circular arc type.

3, diving cutting dredge pump according to claim 1, it is characterized in that, the impeller of described pollution discharge pump is provided with the blade of two open types, broad material feeding mouth and motor for submerged pump shaft connection place, the blade at described material feeding mouth place is set to the transition circle arcuation, and this material feeding mouth is arranged on the central position of impeller.

4, diving cutting dredge pump according to claim 1 is characterized in that, the inner shaft core place of described extension shaft is provided with the stable pin of extension shaft.