CN104776046A - Pump cutting device having cutting and diversion functions - Google Patents
Pump cutting device having cutting and diversion functions Download PDFInfo
- Publication number
- CN104776046A CN104776046A CN201410014810.2A CN201410014810A CN104776046A CN 104776046 A CN104776046 A CN 104776046A CN 201410014810 A CN201410014810 A CN 201410014810A CN 104776046 A CN104776046 A CN 104776046A
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- cutting
- pump
- cutting device
- impeller
- disk
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Abstract
The invention relates to the technical field of water pumps, in particular to a cutting device capable of being attached on a pump for use and having cutting and diversion functions. The cutting device is characterized by comprising a cutting disc 1, a cutting tool 2, a blade type back cover plate 3, a wheel hub 4 and grooves 5. The cutting device consists of the cutting disc and the cutting tool, multiple semielliptical grooves are uniformly formed in the cutting disc, and the blade type back cover plate adopts an axial flow blade form, so that the cavitation resistance of the water pump can be prominently improved, and dirt can be prevented from depositing at the bottom of a pool to purify a sewage pool. The special structure of fitting the cutting tool and the blade type cover plate enables the hydraulic performance of a shredding device to become excellent and enables the water pump to achieve high efficiency and no blockage in a real sense.
Description
Technical field
The present invention relates to pump technology field, particularly a kind of can be attached to pump uses there is cutting and the pump cutting device of diversion function.
Background technique
The broad form of the cutting-type pollution discharge pump produced at present both at home and abroad has: 1. impeller adopts semi-open type list or two blade impeller, coordinates with blade install there is cutting groove or cut the front shroud of screw thread, the dirts such as long fibre lean on blade to coordinate with front shroud and grind.2. impeller adopt be semi-open type two blade impeller, before impeller inlet installation shaft to or radial cutting blade, immovable support is arranged between slitting wheel and impeller or on the fixed block such as the pump housing and pump cover, slitting wheel and knife rest form cutting device, cut and grind dirt.The shortcoming of the cutting-type sewage pump of above-mentioned two kinds of forms is: to coordinate with pump cover owing to adopting semi-open type list or double-leaf and shred, the hydraulic efficiency of half-opened impeller is generally low than double shrouded wheel by 5% ~ 10%, and therefore its efficiency is low; And half-opened impeller and front shroud fitting surface need select wear-resistant material according to medium, also need fine finishing, manufacturing cost is high.The sewage pump of impeller inlet band radial cutting blade limits pump inlet flow, is generally only suitable for the conveying being used in sanitary sewage disposal and Methane fermented sludge on a small scale.Finally, the cutting device of these two kinds of forms limits the use of two blade impeller, and the performance of anti-blockage of Double Channel Pump is best.Object of the present invention, for the deficiencies in the prior art, there is provided a kind of independently have with impeller cut and the pump cutting device of diversion function, the hydraulic efficiency it solving existing half-opened impeller is low, manufacturing cost is high, complex structure, the not easily changeable problem of easily damaged parts, and ad hoc requirement are not had to the form of impeller, there is supplementary effect to flow in addition.
Summary of the invention
Technological scheme of the present invention is: it is characterized in that comprising: cutting disk 1, slitting wheel 2, blade type back shroud 3, wheel hub 4 and groove 5.Cutting device of the present invention is made up of cutting disk and slitting wheel, uniform some half elliptic grooves on cutting disk, blade type back shroud adopts axial blade form, can not only significantly improve the anti-cavitation performance of water pump, dirt can also be prevented at pond bottom sediments, pond of purifying waste water.Slitting wheel and blade type cover plate with the use of special construction make the hydraulic performance of shredding mechanism superior, make water pump reach efficient non-plugging truly.The present invention has unique back shroud design, impeller inlet condition can be improved, improve water pump anti-cavitation performance, the design of axial--flow blading back shroud has flow supplementary function to water pump, be suitable for use in large discharge occasion, in addition the groove on cutting disk is had to the effect of cleaning, can prevent dirt from depositing in cutting groove.The invention has the beneficial effects as follows, cutting device, independent of impeller, is easily changed, and does not have ad hoc requirement to the impeller type of water pump, does not limit to the flow of water pump the effect having reinforcement on the contrary.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further detailed.
Fig. 1 is the axonometric drawing of cutting device erection drawing.
Fig. 2 is the axonometric drawing of cutting impeller.
Fig. 3 is the plan view of cutting device erection drawing.
Fig. 4 is the plan view of cutting device erection drawing.
Fig. 5 is the axonometric drawing of cutting disk.
Fig. 6 is cutting disk plan view.
Fig. 7 is the enforcement illustration that cutting device is installed on sewage pump.
In Fig. 1,1 is cutting disk, and 2 is slitting wheel, and 3 is blade type back shroud, and 4 is wheel hub, and 5 is groove.
Cutting impeller in Fig. 2 is made up of slitting wheel 2, blade type back shroud 3 and wheel hub.
In Fig. 7, the cutting disk 1 of cutting device is fixed on pump seat, and cutting impeller is installed with on pump shaft.
Embodiment
Fig. 7 is that existing cutting device is installed and the schematic diagram on sewage pump, as seen from the figure, slitting wheel, back shroud and wheel hub composition cutting impeller, cutting impeller is installed on pump shaft, with pump shaft high speed rotating, cutting disk is fixed on pump seat, uniform some grooves on cutting disk, due to the effect of prewhirling of slitting wheel, dirt is made to enter in cutting device along groove, cutting impeller and cutting disk form shredding mechanism and shred dirt, back shroud adopts axial--flow blading structure, dirt larger for proportion can be sucked chopper, and have the effect of cleaning cutting disk groove, prevent dirt from depositing in a groove, in addition axial--flow blading can improve impeller inlet condition, improve pump cavitation performance, increase pump capacity, shredding mechanism and water pump vane form the compound pump of twin-stage, make the stable operation of water pump efficient non-plugging.
Claims (3)
1. there is a pump cutting device for cutting and diversion function, it is characterized in that: comprise cutting disk (1), slitting wheel (2), blade type back shroud (3), wheel hub (4), groove (5); Described slitting wheel (2), blade type back shroud (3) and wheel hub (4) composition cutting impeller; The quantity of slitting wheel is equal with the number of blade of back shroud; Cutting disk (1) and cutting impeller coaxial with pump impeller, cutting disk (1) is fixed on pump-foot, and cutting impeller is arranged on pump shaft with axle synchronous axial system.
2. the pump cutting device with cutting and diversion function according to claim 1, it is characterized in that: the upper uniform some spiral grooves (5) of cutting disk (1), the cross section of groove (5) exports from cutting disk inlet to cutting disk and evenly increases, foreign material will enter cutting device along groove the effect of prewhirling of slitting wheel (2) is lower, be shredded by the cutting device that the slitting wheel (2) that rotate and static cutting disk (1) form.
3. the pump cutting device with cutting and diversion function according to claim 1, it is characterized in that: back shroud (3) adopts the shape of axial--flow blading, the cavitation performance of pump can not only be improved, the dirt in groove is also had to the effect of cleaning, improve the cutting efficiency of cutting device; Slitting wheel (2) and blade type back shroud (3) with the use of making cutting device have superior hydraulic performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410014810.2A CN104776046A (en) | 2014-01-14 | 2014-01-14 | Pump cutting device having cutting and diversion functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410014810.2A CN104776046A (en) | 2014-01-14 | 2014-01-14 | Pump cutting device having cutting and diversion functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104776046A true CN104776046A (en) | 2015-07-15 |
Family
ID=53617728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410014810.2A Pending CN104776046A (en) | 2014-01-14 | 2014-01-14 | Pump cutting device having cutting and diversion functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104776046A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570031A (en) * | 2017-09-26 | 2018-01-12 | 江苏大学 | A kind of antiwind diving mixer |
| CN110645200A (en) * | 2019-09-04 | 2020-01-03 | 江苏大学 | Sewage pump impeller with cutting function and sewage pump |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005214190A (en) * | 2004-01-30 | 2005-08-11 | Spurt Kogyo:Kk | Impurity crushing device relative to vertical shaft type centrifugal pump |
| CN201111560Y (en) * | 2007-09-29 | 2008-09-10 | 上海连成（集团）有限公司 | Simple anti-cavitation structure for centrifugal pump |
| CN201232653Y (en) * | 2008-08-04 | 2009-05-06 | 张强 | Diving cutting dredge pump |
| CN201786678U (en) * | 2010-09-21 | 2011-04-06 | 上海富程环保工程有限公司 | Chopping type vertical sewage pump |
| CN202012482U (en) * | 2011-04-18 | 2011-10-19 | 浙江乐威泵业有限公司 | Sewage pump with cutting device |
| CN102400918A (en) * | 2011-11-18 | 2012-04-04 | 江苏国泉泵业制造有限公司 | Centrifugal pump with cutting devices |
| CN202273896U (en) * | 2011-09-05 | 2012-06-13 | 上海潜水泵有限公司 | Cutting device for small submersible pump |
| CN202520615U (en) * | 2012-04-28 | 2012-11-07 | 浙江老百姓泵业有限公司 | Detachable cutting device for pumps |
| CN202752071U (en) * | 2012-06-16 | 2013-02-27 | 王挺峰 | Novel cutting device of sewage pump |
| CN203161556U (en) * | 2013-03-18 | 2013-08-28 | 台州新宏基泵业有限公司 | Submersible sewage pump |
-
2014
- 2014-01-14 CN CN201410014810.2A patent/CN104776046A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005214190A (en) * | 2004-01-30 | 2005-08-11 | Spurt Kogyo:Kk | Impurity crushing device relative to vertical shaft type centrifugal pump |
| CN201111560Y (en) * | 2007-09-29 | 2008-09-10 | 上海连成（集团）有限公司 | Simple anti-cavitation structure for centrifugal pump |
| CN201232653Y (en) * | 2008-08-04 | 2009-05-06 | 张强 | Diving cutting dredge pump |
| CN201786678U (en) * | 2010-09-21 | 2011-04-06 | 上海富程环保工程有限公司 | Chopping type vertical sewage pump |
| CN202012482U (en) * | 2011-04-18 | 2011-10-19 | 浙江乐威泵业有限公司 | Sewage pump with cutting device |
| CN202273896U (en) * | 2011-09-05 | 2012-06-13 | 上海潜水泵有限公司 | Cutting device for small submersible pump |
| CN102400918A (en) * | 2011-11-18 | 2012-04-04 | 江苏国泉泵业制造有限公司 | Centrifugal pump with cutting devices |
| CN202520615U (en) * | 2012-04-28 | 2012-11-07 | 浙江老百姓泵业有限公司 | Detachable cutting device for pumps |
| CN202752071U (en) * | 2012-06-16 | 2013-02-27 | 王挺峰 | Novel cutting device of sewage pump |
| CN203161556U (en) * | 2013-03-18 | 2013-08-28 | 台州新宏基泵业有限公司 | Submersible sewage pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570031A (en) * | 2017-09-26 | 2018-01-12 | 江苏大学 | A kind of antiwind diving mixer |
| CN107570031B (en) * | 2017-09-26 | 2023-12-19 | 江苏大学 | Antiwind submersible mixer |
| CN110645200A (en) * | 2019-09-04 | 2020-01-03 | 江苏大学 | Sewage pump impeller with cutting function and sewage pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150715 |
|
| WD01 | Invention patent application deemed withdrawn after publication |