CN102828986B - The cutting assembly of stainless steel cut submersible pump - Google Patents

The cutting assembly of stainless steel cut submersible pump Download PDF

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Publication number
CN102828986B
CN102828986B CN201210351024.2A CN201210351024A CN102828986B CN 102828986 B CN102828986 B CN 102828986B CN 201210351024 A CN201210351024 A CN 201210351024A CN 102828986 B CN102828986 B CN 102828986B
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cutting
edge portion
quiet
cutting edge
dynamic
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CN102828986A (en
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管敏成
郝技宇
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Zhejiang Haobei pump Limited by Share Ltd
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Taizhou Happy Water Pump Co Ltd
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Abstract

The invention provides a kind of cutting assembly of stainless steel cut submersible pump, belong to pump technology field.The cutting assembly it solving existing stainless steel cut submersible pump also exists the problem of the low and anti-blocking difference of cutting performance.The cutting assembly of this stainless steel cut submersible pump, comprises the secondary dynamic cutting pair with being coaxially located in through hole of quiet cutting that has manhole; Have between the described secondary lateral part of dynamic cutting and the described secondary inner edge portion of quiet cutting and can cut the excessively medium channel of secondary through hole Single port to another port from quiet by confession medium; The described secondary lateral part of dynamic cutting has dynamic cutting edge portion; The described secondary inner edge portion of quiet cutting has to be oppositely arranged with dynamic cutting edge portion and to be formed cuts secondary quiet cutting edge portion.It is secondary that the cutting assembly of stainless steel cut submersible pump only comprises the secondary and dynamic cutting of quiet cutting, therefore has that structure is simple, design and a favorably situated advantage.

Description

The cutting assembly of stainless steel cut submersible pump
Technical field
The invention belongs to pump technology field, relate to a kind of stainless steel cut submersible pump, particularly a kind of cutting assembly of stainless steel cut submersible pump.
Background technique
Sewage pump belongs to the one of centrifugal impurity, can be divided into submersible type and dry type two kinds by working forms.It is mainly for delivery of urban sewage, the medium containing the solid particle such as fiber, paper scrap in ight soil or liquid.Due in the medium that is transferred containing being easily wound around or the fibre object of pack, therefore this kind of pump runner is easy to blocking, pump once blocked meeting makes pump cisco unity malfunction, even motor damage, thus cause blowdown not smooth.Serious impact is brought to urban life and environmental protection.Therefore, anti-blocking and reliability are the key factors of sewage pump quality; Those skilled in the art adopt continuous cutting gloves quantity to weigh the anti-blocking of sewage pump intuitively usually.
About the Patents document of sewage pump and the sewage pump model of commercially selling more.Can be divided into by cutting mode and adopt Impeller trim dirt and adopt independent cutting device cutting dirt.Adopt the sewage pump of Impeller trim dirt, disclosed in Chinese patent literature, band tears the submerged sewage pump [patent No.: 02218064.8, Authorization Notice No.: CN2532292Y] cutting device, sewage cutting submersible pump [application number: 201020295721.7; Authorization Notice No.: CN201763619U] etc.Independent cutting device is adopted to cut the sewage pump of dirt, cutting device for sewage submersible pump [application number: 201020506862.9 disclosed in Chinese patent literature; Authorization Notice No.: CN201763664U]; And for example a kind of proof submersible sand discharging pump [application number: 201020231347.4 of belt cutter tool; Authorization Notice No.: CN201696308U] etc.When the sewage pump work of the above-mentioned employing of test independent cutting device cutting dirt, dirt and sewage all axially enter and the cutting that rotates in a circumferential direction relative to rotating shaft, although can by the general fibre object chopping in sewage, but it is very poor to the cutting effect of the such integral weaving thing of gloves, general continuous cutting 3 gloves, the phenomenon that frequent appearance is stuck, cause water pump not work and even burn machine, namely cutting performance is low poor with anti-blocking.Because existing defects in the sewage pump structure of existing cutting fibre thing causes its hydraulic loss serious, lift is low, and Applicable scope is little.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of cutting assembly of stainless steel cut submersible pump, the submersible pump with this cutting assembly can avoid the problem of the low and anti-blocking difference of cutting performance.
Object of the present invention realizes by following technical proposal: a kind of cutting assembly of stainless steel cut submersible pump, is characterized in that, this cutting assembly comprises the secondary dynamic cutting pair with being coaxially located in through hole of quiet cutting that has manhole; Have between the described secondary lateral part of dynamic cutting and the described secondary inner edge portion of quiet cutting and can cut the excessively medium channel of secondary through hole Single port to another port from quiet by confession medium; The described secondary lateral part of dynamic cutting has dynamic cutting edge portion; The described secondary inner edge portion of quiet cutting has to be oppositely arranged with dynamic cutting edge portion and to be formed cuts secondary quiet cutting edge portion.
Medium channel in the cutting assembly of this stainless steel cut submersible pump can make medium, and relative to through hole, axial and radial direction enters, dynamic cutting edge and quiet cutting edge are all positioned in the circumferential line relative to through hole, therefore can not flow by block media when dynamic cutting pair rotates, namely there is hydraulic performance loss little, the advantage that lift is high.Owing to adopting axial line cutting, therefore can rapidly dirt be cut off, and the dirt of cut-out may be driven to rotate because dynamic cutting is secondary, and then generation is repeatedly cut, dirt is pulverized, namely this cutting assembly has the high advantage of cutting performance, makes the submersible pump anti-blocking with this cutting assembly stronger simultaneously.
In the cutting assembly of above-mentioned stainless steel cut submersible pump, the quantity of described dynamic cutting edge portion is 2 ~ 4; All dynamic cutting edge portions are uniformly distributed around dynamic cutting secondary axis.
In the cutting assembly of above-mentioned stainless steel cut submersible pump, described dynamic cutting pair also has matrix, and dynamic cutting edge portion is positioned on matrix outer side surface; The described dynamic cutting edge portion described in the profile line of matrix exterior edge face and profile line crosspoint and between adjacent described dynamic cutting edge portion and profile line crosspoint line segment relative to the distance of axis, all there is the section of reducing and the gradually section of increase gradually; The inner end of described matrix is cylindric, and all the other position shape of cross sections are corresponding with matrix exterior edge face shape and increase gradually from exterior edge face to inner end.
In the cutting assembly of above-mentioned stainless steel cut submersible pump, described dynamic cutting edge portion is strip, and dynamic cutting edge portion is obliquely installed relative to the axis of dynamic cutting parabasal body; Described dynamic cutting edge portion and matrix exterior edge face be acute angle side on have cutting groove, and described dynamic cutting edge portion and matrix exterior edge face are have dynamic cutting edge between the side of acute angle and described dynamic cutting edge portion outer side surface.
In the cutting assembly of above-mentioned stainless steel cut submersible pump, between the axis of described dynamic cutting edge portion and dynamic cutting parabasal body, angle is 15 ° ~ 25 °.
In the cutting assembly of above-mentioned stainless steel cut submersible pump, described dynamic cutting secondary cutting work sense of rotation is identical with dynamic cutting edge portion true dip direction.
In the cutting assembly of above-mentioned stainless steel cut submersible pump, the described secondary pedestal also had in tabular of quiet cutting, described through hole is positioned on pedestal, pedestal outer plate surface is at least connected with two quiet cutting edge portions evenly arranged around through hole axle center.
In the cutting assembly of above-mentioned stainless steel cut submersible pump, described pedestal inner plate surface is also at least connected with two quiet cutting edge portions evenly arranged around through hole axle center.
In the cutting assembly of above-mentioned stainless steel cut submersible pump, the quiet cutting edge portion on described pedestal inner plate surface relative to the quiet cutting edge portion in pedestal outer plate surface in shifting to install.The angle that mistake is arranged is determined according to the designed size of cutting pair and the quantity of cutting edge.
In the cutting assembly of above-mentioned stainless steel cut submersible pump, described quiet cutting edge portion has quiet cutting edge, and described quiet cutting edge is obliquely installed relative to through hole axle center.
In the cutting assembly of above-mentioned stainless steel cut submersible pump, between described quiet cutting edge and through hole axle center, angle is 15 ° ~ 25 °.
In the cutting assembly of above-mentioned stainless steel cut submersible pump, between described quiet cutting edge and dynamic cutting edge, angle is 30 ° ~ 45 °.
In the cutting assembly of above-mentioned stainless steel cut submersible pump, the outer plate surface inner edge place of described pedestal has the outer slot to make way that quantity and one_to_one corresponding identical with the quiet cutting edge portion quantity in pedestal outer plate surface is arranged; Described outer slot to make way is positioned at the front side of the quiet cutting edge portion in said base outer plate surface relative to dynamic cutting secondary cutting work sense of rotation; The inner edge line of outer slot to make way is connected with the quiet cutting edge in said base outer plate surface.
In the cutting assembly of above-mentioned stainless steel cut submersible pump, the inner plate surface inner edge place of described pedestal has the interior slot to make way that quantity and one_to_one corresponding identical with the quiet cutting edge portion quantity on pedestal inner plate surface is arranged; Described interior slot to make way is positioned at the front side of the quiet cutting edge portion on said base inner plate surface relative to dynamic cutting secondary cutting work sense of rotation; The inner edge line of interior slot to make way is connected with the quiet cutting edge on said base inner plate surface.
In the cutting assembly of above-mentioned stainless steel cut submersible pump, described outer slot to make way and interior slot to make way all first increase gradually along the secondary cutting work sense of rotation degree of depth of dynamic cutting and width, rear with quiet cutting edge portion arc transition accordingly.
Compared with prior art, it is secondary that the cutting assembly of this stainless steel cut submersible pump only comprises the secondary and dynamic cutting of quiet cutting, therefore has that structure is simple, design and a favorably situated advantage.
The stainless steel cut submersible pump through overtesting with this cutting assembly optimized project at least can cut 10 gloves continuously, and the pulverized particle of fabric of discharge is little, can also ensure hydraulic performance and lift simultaneously; And after dissembling inspection, find no fabric and be wound around at cutting assembly place; Therefore there is cutting power strong and stainless steel cut submersible pump anti-blocking is strengthened.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram that this cutting assembly is arranged in stainless steel cut submersible pump.
Fig. 2 be in Fig. 1 K to structural representation.
Fig. 3 be in this cutting assembly quiet cutting secondary look up structural representation.
Fig. 4 is the sectional structure schematic diagram that in this cutting assembly, quiet cutting is secondary.
Fig. 5 is the plan structure schematic diagram that in this cutting assembly, quiet cutting is secondary.
Fig. 6 is the main TV structure schematic diagram that in this cutting assembly, dynamic cutting is secondary.
Fig. 7 be in this cutting assembly dynamic cutting secondary look up structural representation.
In figure, 1, quiet cutting is secondary; 11, quiet cutting edge portion; 12, outer slot to make way; 13, pedestal; 14, interior slot to make way; 15, through hole; 16, cutting surface; 17, quiet cutting edge; 2, dynamic cutting is secondary; 21, matrix; 211, inner end; 22, dynamic cutting edge portion; 23, dynamic cutting edge; 24, cutting groove; 25, the section of increase gradually; 26, the section of reducing gradually; α, angle between quiet cutting edge and through hole axle center; β, angle between dynamic cutting edge portion and the axis of dynamic cutting parabasal body; Angle between the tangential line of Jing Qiegerenchu of γ, inner side surface and cutting surface.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technological scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As depicted in figs. 1 and 2, the cutting assembly of this stainless steel cut submersible pump comprises dynamic cutting secondary 2 and quiet cutting secondary 1.
Specifically, as shown in Figures 3 to 5, quiet cutting secondary 1 comprises pedestal 13 in tabular and quiet cutting edge portion 11.The center of pedestal 13 has a manhole 15.Quiet cutting edge portion 11 is positioned at the inner edge place of pedestal 13.
As shown in Figure 6 to 7, dynamic cutting secondary 2 comprises matrix 21 and the dynamic cutting edge portion 22 be positioned on matrix 21 outer side surface.The inner end 211 of matrix 21 is in cylindric.
Dynamic cutting edge portion 22 is in strip, and dynamic cutting edge portion 22 is arranged vertically relative to above-mentioned matrix 21.The quantity of dynamic cutting edge portion 22 is 2 ~ 4; All dynamic cutting edge portions 22 are uniformly distributed around the axis of secondary 2 matrixes 21 of dynamic cutting.This Figure of description is 2 to the quantity setting out cutting edge portion 22.The quantity of dynamic cutting edge portion 22 can be determined according to matrix 21 size, and namely according to different cutting operating modes and requirement, the quantity of dynamic cutting edge portion 22 is can also be 3 or 4.
In the profile line of matrix 21 exterior edge face dynamic cutting edge portion 22 and profile line crosspoint and between adjacent dynamic cutting edge portion 22 and profile line crosspoint line segment relative to the distance of axis, all there is the section of reducing 26 and increase section 25 gradually gradually.Matrix 21 except all the other position shape of cross sections of inner end 211 corresponding with matrix 21 exterior edge face shape and increase gradually from exterior edge face to inner end 211.
The axis of dynamic cutting edge portion 22 2 matrixes 21 secondary relative to dynamic cutting is obliquely installed; Dynamic cutting edge portion 22 and matrix 21 exterior edge face be acute angle side on have cutting groove 24, and move cutting edge portion 22 and matrix 21 exterior edge face is have dynamic cutting edge 23 between the side of acute angle and dynamic cutting edge portion 22 outer side surface.Between the axis of dynamic cutting edge portion 22 and secondary 2 matrixes 21 of dynamic cutting, angle β is 15 ° ~ 25 °.The secondary 2 cutting work sense of rotation of dynamic cutting are identical with dynamic cutting edge portion 22 true dip direction.This structure effectively can promote length, the sharpness of dynamic cutting edge 23 and cut off ability.
Pedestal 13 outer plate surface is at least connected with two quiet cutting edge portions 11 evenly arranged around through hole 15 axle center.Preferential or the twice identical with dynamic cutting edge portion 22 quantity of the quantity of quiet cutting edge portion 11 in pedestal 13 outer plate surface.The quantity that this Figure of description provides quiet cutting edge portion 11 in pedestal 13 outer plate surface is two.
On pedestal 13 inner plate surface, two quiet cutting edge portions 11 evenly arranged around through hole 15 axle center also can be at least connected with in order to improve cutting power.On pedestal 13 inner plate surface, the quantity of quiet cutting edge portion 11 is preferential identical with the quantity of quiet cutting edge portion 11 in pedestal 13 outer plate surface, and the quantity that therefore this Figure of description provides quiet cutting edge portion 11 on pedestal 13 inner plate surface is also two.
Quiet cutting edge portion 11 on pedestal 13 inner plate surface relative to the quiet cutting edge portion 11 in pedestal 13 outer plate surface in shifting to install.More particularly, on pedestal 13 inner plate surface, quiet cutting edge portion 11 is positioned at the neutral position of quiet cutting edge portion 11 in adjacent two pedestal 13 outer plate surface correspondingly.
One side of quiet cutting edge portion 11 is cutting surface 16, and between cutting surface 16 and inner side surface, cutting surface 16 and inner side surface join line and form quiet cutting edge 17.Between the tangential line in quiet cutting edge 17 place of inner side surface and cutting surface 16, angle γ is 50 ° ~ 70 °, and this corner dimension is relevant to quiet cutting edge 17 sharpness and to bear cutting force etc. relevant, can adjust numerical value neatly according to relevant cutting operating mode.
Quiet cutting edge 17 is obliquely installed relative to through hole 15 axle center; Between quiet cutting edge 17 and through hole 15 axle center, angle α is 15 ° ~ 25 °.This structure can promote the length of quiet cutting edge 17 effectively.Quiet cutting edge 17 true dip direction cut pair 2 with dynamic to cut work sense of rotation contrary.
Dynamic cutting pair 2 is located in through hole 15 place of quiet cutting secondary 1, and more particularly, axle center and quiet through hole 15 axis coinciding cutting pair 1 of secondary 2 matrixes 21 of dynamic cutting are arranged.The exterior edge face of matrix 21 flushes substantially with the exterior edge face of quiet cutting edge portion 11 in pedestal 13 outer plate surface; Pedestal 13 is positioned at the center of matrix 21.Have between matrix 21 outer side surface with secondary 1 through hole 15 sidewall of quiet cutting make cutting assembly outer end with inner be connected cross dielectric gap, the radial spacing simultaneously between matrix 21 outer side surface and quiet cutting pair 1 through hole 15 sidewall reduces gradually from outer end to the inner.Therefore this structure decapacitation promotes the pressure of medium and improves dirt and enter ability in pump, makes medium have to away from matrix 21 axe movement trend simultaneously.
Cutting is formed secondary between the quiet cutting edge portion 11 of secondary 1 inner edge portion of quiet cutting and the dynamic cutting edge portion 22 of secondary 2 lateral parts of dynamic cutting.Through lot of experiments, when between quiet cutting edge 17 and dynamic cutting edge 23, angle is 30 ° ~ 45 °, cutting power is optimum.Angle between the axis of therefore dynamic cutting edge portion 22 and secondary 2 matrixes 21 of dynamic cutting, between quiet cutting edge 17 and through hole 15 axle center angle and between quiet cutting edge 17 and dynamic cutting edge 23 angle three numerical value should consider.
In order to improve cutting power and enter media capabilities, so the outer slot to make way 12 that quantity and one_to_one corresponding identical with quiet cutting edge portion 11 quantity in pedestal 13 outer plate surface arrange can be had at the outer plate surface inner edge place of pedestal 13; Outer slot to make way 12 is positioned at the front side of the quiet cutting edge portion 11 2 cutting work sense of rotation secondary relative to dynamic cutting in said base 13 outer plate surface; The inner edge line of outer slot to make way 12 is connected with the quiet cutting edge 17 in said base 13 outer plate surface.The inner plate surface inner edge place of pedestal 13 have quantity and one_to_one corresponding identical with quiet cutting edge portion 11 quantity on pedestal 13 inner plate surface arrange in slot to make way 14; Described interior slot to make way 14 is positioned at the front side of the quiet cutting edge portion 11 2 cutting work sense of rotation secondary relative to dynamic cutting on said base 13 inner plate surface; The inner edge line of interior slot to make way 14 is connected with the quiet cutting edge 17 on said base 13 inner plate surface.Outer slot to make way 12 and interior slot to make way 14 all first increase gradually along the secondary 2 cutting work sense of rotation degree of depth of dynamic cutting and width, rear with quiet cutting edge portion 11 arc transition accordingly.
Between secondary 2 matrix 21 outer side surfaces of dynamic cutting and secondary 1 through hole 15 sidewall of quiet cutting cross dielectric gap, outer slot to make way 12 and interior slot to make way 14 jointly form can for medium from quiet through hole 15 Single port cutting pair 1 to another port medium channel.Thus, the length that namely outer slot to make way 12 and interior slot to make way 14 extend quiet cutting edge 17 is effectively set, effectively increased again the radial length of medium channel.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.

Claims (10)

1. the cutting assembly of a stainless steel cut submersible pump, it is characterized in that, this cutting assembly comprises one to be had the quiet cutting secondary (1) of manhole (15) and is coaxially located in the dynamic cutting secondary (2) at through hole (15) place; Have between described secondary (2) lateral part of dynamic cutting and described secondary (1) inner edge portion of quiet cutting can for medium from through hole (15) Single port of quiet cutting secondary (1) to another port medium channel; Secondary (2) lateral part of described dynamic cutting has dynamic cutting edge portion (22); Described dynamic cutting secondary (2) also has matrix (21), described dynamic cutting edge portion (22) is in strip, and dynamic cutting edge portion (22) is obliquely installed relative to the axis of secondary (2) matrix (21) of dynamic cutting; Secondary (1) inner edge portion of described quiet cutting has and to be oppositely arranged with dynamic cutting edge portion (22) and to form the quiet cutting edge portion (11) cutting pair.
2. the cutting assembly of stainless steel cut submersible pump according to claim 1, is characterized in that, the quantity of described dynamic cutting edge portion (22) is 2 ~ 4; All dynamic cutting edge portions (22) are along the circumferential direction uniformly distributed around secondary (2) axis of dynamic cutting.
3. the cutting assembly of stainless steel cut submersible pump according to claim 1, is characterized in that, dynamic cutting edge portion (22) is positioned on matrix (21) outer side surface; The described dynamic cutting edge portion (22) described in the profile line of matrix (21) exterior edge face and profile line crosspoint and between adjacent described dynamic cutting edge portion (22) and profile line crosspoint line segment relative to the distance of benchmark axial plane, all there is the section of reducing (26) and the gradually section of increase (25) gradually; The inner end (211) of described matrix (21) is in cylindric, and all the other position shape of cross sections are corresponding with matrix (21) exterior edge face shape and increase gradually from exterior edge face to inner end (211).
4. the cutting assembly of the stainless steel cut submersible pump according to claim 1 or 2 or 3, it is characterized in that, described dynamic cutting edge portion (22) and matrix (21) exterior edge face be acute angle side on have cutting groove (24), and described dynamic cutting edge portion (22) and matrix (21) exterior edge face are have dynamic cutting edge (23) between the side of acute angle and described dynamic cutting edge portion (22) outer side surface; Described dynamic cutting secondary (2) cutting work sense of rotation is identical with dynamic cutting edge portion (22) true dip direction.
5. the cutting assembly of stainless steel cut submersible pump according to claim 1, it is characterized in that, described quiet cutting secondary (1) also has the pedestal (13) in tabular, described through hole (15) is positioned on pedestal (13), pedestal (13) outer plate surface is at least connected with two quiet cutting edge portions (11) evenly arranged around through hole (15) axle center.
6. the cutting assembly of stainless steel cut submersible pump according to claim 5, it is characterized in that, described pedestal (13) inner plate surface is also at least connected with two quiet cutting edge portions (11) evenly arranged around through hole (15) axle center.
7. the cutting assembly of stainless steel cut submersible pump according to claim 6, it is characterized in that, the quiet cutting edge portion (11) on described pedestal (13) inner plate surface relative to the quiet cutting edge portion (11) in pedestal (13) outer plate surface in shifting to install.
8. the cutting assembly of the stainless steel cut submersible pump according to claim 5 or 6 or 7, it is characterized in that, described quiet cutting edge portion (11) has quiet cutting edge (17), and described quiet cutting edge (17) is obliquely installed relative to through hole (15) axle center.
9. the cutting assembly of the stainless steel cut submersible pump according to claim 5 or 6 or 7, it is characterized in that, the outer plate surface inner edge place of described pedestal (13) has the outer slot to make way (12) that quantity and one_to_one corresponding identical with quiet cutting edge portion (11) quantity in pedestal (13) outer plate surface is arranged; Described outer slot to make way (12) is positioned at the front side of the quiet cutting edge portion (11) in said base (13) outer plate surface relative to dynamic cutting secondary (2) cutting work sense of rotation; The inner edge line of outer slot to make way (12) is connected with the quiet cutting edge (17) in said base (13) outer plate surface.
10. the cutting assembly of the stainless steel cut submersible pump according to claim 6 or 7, it is characterized in that, the inner plate surface inner edge place of described pedestal (13) has the interior slot to make way (14) that quantity and one_to_one corresponding identical with quiet cutting edge portion (11) quantity on pedestal (13) inner plate surface is arranged; Described interior slot to make way (14) is positioned at the front side of the quiet cutting edge portion (11) on said base (13) inner plate surface relative to dynamic cutting secondary (2) cutting work sense of rotation; The inner edge line of interior slot to make way (14) is connected with the quiet cutting edge (17) on said base (13) inner plate surface.
CN201210351024.2A 2012-09-20 2012-09-20 The cutting assembly of stainless steel cut submersible pump Active CN102828986B (en)

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CN102828986B true CN102828986B (en) 2015-11-18

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105508262B (en) * 2016-01-20 2017-12-29 四川嘉能机电有限公司 A kind of multistage cutting grinds dredge pump

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CN202266451U (en) * 2011-10-17 2012-06-06 浙江奇峰泵业有限公司 Sewage dirt submerged electric 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
CN202348745U (en) * 2011-12-14 2012-07-25 浙江明江环保科技有限公司 Mincing-type sewage draining pump

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Publication number Priority date Publication date Assignee Title
CN2672326Y (en) * 2003-12-30 2005-01-19 南京蓝深制泵集团股份有限公司 Double reamer cutting pump
CN101680452A (en) * 2007-05-08 2010-03-24 Itt制造企业公司 Pump assembly and method
CN201475027U (en) * 2009-08-05 2010-05-19 浙江丰球泵业股份有限公司 Tearing and cutting cutter pair for diving tearing and cutting pump
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CN201763664U (en) * 2010-08-24 2011-03-16 开利泵业(集团)有限公司 Cutting device for submersible sewage pump
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CN202273896U (en) * 2011-09-05 2012-06-13 上海潜水泵有限公司 Cutting device for small submersible pump
CN202266451U (en) * 2011-10-17 2012-06-06 浙江奇峰泵业有限公司 Sewage dirt submerged electric pump with cutting device
CN202348745U (en) * 2011-12-14 2012-07-25 浙江明江环保科技有限公司 Mincing-type sewage draining pump

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Address after: Wenling City, Taizhou City Road, Daxi town of Ocean City province Zhejiang 317525 Industrial Zone No. 496

Patentee after: Zhejiang Haobei pump Limited by Share Ltd

Address before: Wenling City, Taizhou City Road, Daxi town of Ocean City province Zhejiang 317525 Industrial Zone No. 496

Patentee before: Taizhou Happy Water Pump Co., Ltd.