CN102434481A - Crushing pump utilizing streamlined cutter heads - Google Patents
Crushing pump utilizing streamlined cutter heads Download PDFInfo
- Publication number
- CN102434481A CN102434481A CN2011103753926A CN201110375392A CN102434481A CN 102434481 A CN102434481 A CN 102434481A CN 2011103753926 A CN2011103753926 A CN 2011103753926A CN 201110375392 A CN201110375392 A CN 201110375392A CN 102434481 A CN102434481 A CN 102434481A
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- China
- Prior art keywords
- cutter head
- cutter
- streamlined
- pump
- crushing
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Abstract
The invention relates to a crushing pump utilizing streamlined cutter heads. A crushing device is installed in front of an impeller inlet and substantially comprises a dynamic cutter and a static cutter. The dynamic cutter is fixed at the shaft end in front of the impeller inlet and pressed on the shaft through a fastening bolt of the shaft end to achieve axial fixing. The dynamic cutter rotates along with a pump shaft. More than one cutter head is arranged on the lower surface of the dynamic cutter close to the position of the external diameter and downwards extend for a certain height along the shaft. The cutter heads are in streamlined shapes viewed both from the axial direction and the radial direction. The cutter heads are in streamlined shapes with both the width and the height decreasing in the direction opposite to the rotating direction. The static cutter is fixed on fixed pieces such as a pump body, a pump cover or the like, a plurality of semi-circular flow channels for limiting the diameter of particles passing through are arranged on the inner circumference of the static cutter, and two sides of each flow channel form two cutting edges matched with the rotating cutter heads of the dynamic cutter to crush sundries. The dynamic cutter utilizes the streamlined cutter heads, thereby reducing flow losses and effectively improving flow situations of the inlet of the crushing pump and crushing performance of the crushing pump.
Description
Technical field
The present invention relates to a kind of macerator pump, particularly a kind of macerator pump that adopts streamlined cutter head.
Background technique
Macerator pump is a kind of Non-blinding pump that is used to carry sewage.Large particle in the sewage and long stapled foreign material get into macerator pump, are at first pulverized by cutterhead in inlet, are transferred out by pump then.For traditional macerator pump, because be added with cutterhead in the inlet of pump, the cutter head shape is improper, and the mobile relatively disorder of the inlet of macerator pump cavitation phenomenons can occur near the cutter head of rotation, causes the decline of various aspects of performance such as macerator pump lift, flow and efficient.Therefore, need to change the shape of cutter head, reduce flow resistance, improve inlet's mobility status of macerator pump, and then improve and pulverize pump performance.
Summary of the invention
For addressing the above problem, the cutter head of the macerator pump that the present invention relates to adopts streamlined, makes the steadily smooth entering impeller inlet of fluid ratio through the cutterhead of macerator pump, reduces the Effect on Performance of flow resistance to macerator pump.
Realize that the technological scheme that above-mentioned purpose adopted is:
Macerator pump is before the import of impeller, reducing mechanism to be installed, and reducing mechanism mainly is made up of movable knife disc and two parts of quiet cutterhead; Movable knife disc is fixed on the axle head before the impeller inlet; Tightened bolt presses through axle head is carried out axial restraint on axle; Movable knife disc rotates with pump shaft, has near outer radius on the lower surface of movable knife disc to be no less than one cutter head, and cutter head stretches out certain height vertically down; Cutter head is streamline shape from axially looking with both direction radially, is that width is streamlined by what diminish greatly with height against the sense of rotation cutter head; Quiet cutterhead is fixed on the firmwares such as the pump housing or pump cover, arranges the half round runner that much is used for the restricted passage particle diameter on the quiet cutterhead inner peripheral surface, and the both sides of runner form two blades, cooperates with the movable knife disc cutter head that rotates and pulverizes foreign material.Adopt the movable knife disc of streamlined cutter head, reduced flow losses, improved the inlet flow situation of macerator pump effectively, improved the pulverizing pump performance.
The invention has the beneficial effects as follows: reduce hydraulic loss, improved the pulverizing pump performance.
The present invention is on probation through the user, and reaction effect is good.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention
Fig. 2 is the axial view of the reducing mechanism of one embodiment of the invention
Fig. 3 is same embodiment's radially the attempting of movable knife disc
Among the figure: 1. motor, 2. spool, 3. impeller, the 4. pump housing, 5. clamping bolt, 6. movable knife disc, 7. quiet cutterhead, 8. half round runner, 9. cutter head, 10. cutter head width B, 11. cutter head height H, 12 cutter head length L, 13. cutterhead lower surfaces.
Embodiment
Fig. 1, Fig. 2 and Fig. 3 have confirmed to adopt in the present embodiment structural type of streamlined cutter head macerator pump jointly, and it is by motor (1), axle (2), impeller (3); The pump housing (4), clamping bolt (5), movable knife disc (6); Quiet cutterhead (7), half round runner (8), cutter head (9); Cutter head width B (10), cutter head height H (11), cutter head length L (12); Cutterhead lower surface (13) is formed, and this macerator pump has been installed reducing mechanism before the import of impeller (3), and reducing mechanism mainly is made up of movable knife disc (6) and (7) two parts of quiet cutterhead; Movable knife disc (6) is fixed on the axle head before impeller (3) import; Clamping bolt (5) through axle head is pressed on the axle (2) and carries out axial restraint; Movable knife disc (6) is with axle (2) rotation, and the lower surface (13) of movable knife disc (6) is gone up has the cutter head (9) that is no less than near outer radius, and cutter head (9) stretches out certain height vertically down; Cutter head is streamline shape from axially looking with both direction radially, and is streamlined by what diminish greatly for width (10) and highly (11) against sense of rotation cutter head (9); Quiet cutterhead (7) is fixed on the pump housing (4); Arrange the half round runner (8) that much is used for the restricted passage particle diameter on quiet cutterhead (7) inner peripheral surface; The both sides of runner form two blades, when material gets into, can be thrown to the circumferencial direction of reducing mechanism by cutter head (9); The cutter head (9) that material can be rotated when partly getting into half round runner (8) is pulverized, and the very little particle of final formation gets into impeller (3) runner.Adopt the cutterhead of streamlined cutter head (9), can reduce fluid resistance losses effectively, improve the inlet flow situation of macerator pump, improve and pulverize pump performance.
Claims (4)
1. macerator pump that adopts streamlined cutter head, it is by motor (1), axle (2), impeller (3); The pump housing (4), clamping bolt (5), movable knife disc (6), quiet cutterhead (7); Half round runner (8), cutter head (9), cutter head width B (10), cutter head height H (11); Cutter head length L (12), cutterhead lower surface (13) is formed, and it is characterized in that: the reducing mechanism of being made up of movable knife disc (6) and quiet cutterhead (7) is installed before macerator pump impeller (3) import; Near outer radius the cutter head (9) that is no less than is arranged on movable knife disc (6) lower surface, cutter head be width (10) and the height (11) by the streamlined cutter head (9) that diminishes greatly; Arrange the half round runner (8) that much is used for the restricted passage particle diameter on quiet cutterhead (7) inner peripheral surface, the number of half round runner (8) is no less than two.
2. relation below satisfying according to right 1 described streamlined cutter head width B (10) and streamlined cutter head length L (12): B=(0.2～1) L, wherein best results during B=0.4L.
3. relation below satisfying according to right 1 described streamlined cutter head height H (11) and streamlined cutter head length L (12): H=(0.1～2) L, wherein best results during H=1.2L.
4. according to right 1 described half round runner (8), its shape not only is confined to half round runner (8), can be other the flow channel shape that can form blade in the runner both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103753926A CN102434481A (en) | 2011-11-18 | 2011-11-18 | Crushing pump utilizing streamlined cutter heads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103753926A CN102434481A (en) | 2011-11-18 | 2011-11-18 | Crushing pump utilizing streamlined cutter heads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102434481A true CN102434481A (en) | 2012-05-02 |
Family
ID=45982756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103753926A Pending CN102434481A (en) | 2011-11-18 | 2011-11-18 | Crushing pump utilizing streamlined cutter heads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102434481A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996493A (en) * | 2012-12-11 | 2013-03-27 | 江苏大学 | Anti-cavitation grinding device of submerged grinding pump |
| CN104005962A (en) * | 2014-05-30 | 2014-08-27 | 江苏大学 | Single-flow channel centrifugal pump with blade in flow channel |
| CN111946660A (en) * | 2020-08-25 | 2020-11-17 | 赣州市闻誉科技有限公司 | Impeller structure of centrifugal pump |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4108386A (en) * | 1977-04-13 | 1978-08-22 | Mcneil Corporation | Grinder pump |
| CA1141502A (en) * | 1980-04-16 | 1983-02-22 | Robert M. Keener | Grinder pump cutter and assembly |
| US4378093A (en) * | 1980-12-11 | 1983-03-29 | Keener Steven M | Grinder pump cutter assembly |
| US4697746A (en) * | 1984-08-17 | 1987-10-06 | Ebara Corporation | Grinder pump |
| US7237736B1 (en) * | 2005-12-05 | 2007-07-03 | Little Giant Pump Company | Grinder pump with self aligning cutter assembly |
| CN201106566Y (en) * | 2007-09-05 | 2008-08-27 | 林心怡 | Improved structure of wastewater treatment pump |
| CN201176940Y (en) * | 2007-08-08 | 2009-01-07 | 淄博山泉实业有限公司 | Submersible sewage pumps with cutting device |
| TWM358894U (en) * | 2007-08-16 | 2009-06-11 | xin-yi Lin | Improved structure of cutter for blending precipitate of waste water processing pump |
-
2011
- 2011-11-18 CN CN2011103753926A patent/CN102434481A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4108386A (en) * | 1977-04-13 | 1978-08-22 | Mcneil Corporation | Grinder pump |
| CA1141502A (en) * | 1980-04-16 | 1983-02-22 | Robert M. Keener | Grinder pump cutter and assembly |
| US4378093A (en) * | 1980-12-11 | 1983-03-29 | Keener Steven M | Grinder pump cutter assembly |
| US4697746A (en) * | 1984-08-17 | 1987-10-06 | Ebara Corporation | Grinder pump |
| US7237736B1 (en) * | 2005-12-05 | 2007-07-03 | Little Giant Pump Company | Grinder pump with self aligning cutter assembly |
| CN201176940Y (en) * | 2007-08-08 | 2009-01-07 | 淄博山泉实业有限公司 | Submersible sewage pumps with cutting device |
| TWM358894U (en) * | 2007-08-16 | 2009-06-11 | xin-yi Lin | Improved structure of cutter for blending precipitate of waste water processing pump |
| CN201106566Y (en) * | 2007-09-05 | 2008-08-27 | 林心怡 | Improved structure of wastewater treatment pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996493A (en) * | 2012-12-11 | 2013-03-27 | 江苏大学 | Anti-cavitation grinding device of submerged grinding pump |
| CN104005962A (en) * | 2014-05-30 | 2014-08-27 | 江苏大学 | Single-flow channel centrifugal pump with blade in flow channel |
| CN104005962B (en) * | 2014-05-30 | 2017-02-01 | 江苏大学 | Single-flow channel centrifugal pump with blade in flow channel |
| CN111946660A (en) * | 2020-08-25 | 2020-11-17 | 赣州市闻誉科技有限公司 | Impeller structure of centrifugal pump |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120502 |