CN205744472U - Sewage pump - Google Patents
Sewage pump Download PDFInfo
- Publication number
- CN205744472U CN205744472U CN201620411750.2U CN201620411750U CN205744472U CN 205744472 U CN205744472 U CN 205744472U CN 201620411750 U CN201620411750 U CN 201620411750U CN 205744472 U CN205744472 U CN 205744472U
- Authority
- CN
- China
- Prior art keywords
- blade
- sewage
- leading edge
- impeller
- main shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 43
- 239000007787 solid Substances 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000005086 pumping Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 230000010349 pulsation Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
Sewage pump of the present utility model, prevents the rubbish because sewage contains, solid content from making pump-out reduce.Sewage pump (1) possesses: main shaft (22), make main shaft (22) around rotary shaft (R2) rotate motor (23), be internally formed by sewage from suction inlet (16) be transferred to outlet (18) whirlpool chamber (11) pump case (12), be fixed on main shaft (22) the impeller (14) being configured in whirlpool chamber (11).Impeller (14) possesses: sewage gives the blade (54) of centrifugal energy and is highly incrementally formed at multiple blades (57) on blade (54) surface from the leading edge (55) of blade (54) to trailing edge (56).The leading section (55A) of the leading edge (55) of blade (54), with respect to leading edge (55) root (55B) and with rotary shaft (R2) vertical line (L3) it is positioned at downstream, and relative to by the root (55B) of leading edge (55) and rotary shaft (R2) line (L that links4) it is positioned at the side contrary with the direction of rotation of impeller (14) (C).
Description
Technical field
This utility model relates to sewage pump, particularly relates to the used sewage pump that draws water of the sewer etc. containing multiple foreign body.
Background technology
Fig. 1 is the longitudinal section representing such existing sewage pump.This existing sewage pump makes the impeller 514 being housed in whirlpool chamber 511 rotate by motor 523 and via main shaft 522, is thus sucked from suction inlet 516 by the sewage outside pump, and is boosted by centrifugal force produced by impeller 514, and discharges from outlet 518.
Fig. 2 is the partial enlarged drawing of Fig. 1, and impeller 514 meridian plane section represents.It addition, Fig. 3 is the upward view of impeller 514.As in figure 2 it is shown, the blade 554 being arranged at impeller 514 is the most opposed with the wall 512A of housing 512, impeller 514 is unshrouded impeller.
It is said that in general, mostly containing strip and cellulosic rubbish or large-scale and substantial amounts of solid content etc. in sewage.Therefore, in the sewage pump that such sewage is drawn water, there is rubbish etc. and can be wound in the situation that suction end or the rubbish etc. of impeller are blocked between the blade of impeller and housing.Exist such rubbish over time through and gradually increase, thus the stream in block pumps, cause the situation that extracted sewage quantity reduces.
In existing sewage pump, as in figure 2 it is shown, the leading section 555A of the leading edge 555 of blade 554 with respect to leading edge 555 root 555B and with rotary shaft R1Vertical line L1It is positioned at current F1Upstream side.It addition, as it is shown on figure 3, the leading section 555A of the leading edge 555 of blade 554 is relative to by the root 555B of the leading edge 555 of blade 554 and rotary shaft R1The line L linked2It is positioned at direction of rotation C1Side.
In such a configuration, if pumped enter rubbish G card be hung on the leading edge 555 of blade 554, then rubbish G wants forward end 555A side shifting because of centrifugal force, but owing to the leading section 555A of blade 554 is positioned at the upstream side of current F and is positioned at direction of rotation C side, therefore rubbish G is difficult to forward end 555A side shifting, and easily keeps card to be hung on the state of leading edge 555 and be detained.Its result is in view of process over time, and rubbish G gradually increases and blocks stream, thus causes the amount of extracted sewage to reduce.
Utility model content
This utility model is made in view of such problem of the prior art, it is therefore intended that provide the sewage pump being prevented from making pump-out reduce because of the rubbish contained by sewage, solid content.
According to a mode of the present utility model, it is provided that a kind of sewage pump being prevented from making pump-out reduce because of the rubbish contained by sewage, solid content.This sewage pump possesses: main shaft；Motor, it makes described main shaft rotate around rotary shaft；Pump case, at the whirlpool chamber being internally formed for sewage is transferred to outlet from suction inlet of this pump case；And impeller, it is fixed on described main shaft and is configured in described whirlpool chamber, and described impeller possesses: blade, and it gives centrifugal energy to described sewage；And multiple blade, they are formed at the surface of described blade to trailing edge by height in the way of the leading edge of described blade is gradually increased, the leading section of the described leading edge of described blade with respect to described leading edge root and the line vertical with described rotary shaft is positioned at downstream, and relative to the described root of described leading edge is positioned at the side contrary with the direction of rotation of described impeller with the line that described rotary shaft links.
According to such structure, if being sucked from suction inlet together with sewage by rubbish, then by the blade rotated together with blade, rubbish cut-out can be made its panelization, therefore, it is possible to prevent rubbish from blocking between blade and the wall of pump case and make the situation of stream obturation.Additionally, the line that the leading section of the leading edge of blade is vertical with rotary shaft with respect to the root of leading edge is positioned at downstream, and it is positioned at side opposite to the direction of rotation relative to by the line that the root of the leading edge of blade and rotary shaft link, so even the rubbish card being inhaled into from suction inlet is hung on the leading edge of blade, the rubbish also easy forward end side shifting because of centrifugal force and current, thus easily depart from from leading edge.Therefore, it is possible to prevent rubbish from keeping the state blocking the leading edge hanging over blade to be detained and the situation of inaccessible stream.
Being preferably, the plurality of blade includes: the first blade；Second blade, it is adjacent to described first blade, and described in aspect ratio, the first blade is high.By so blade low to blade high for height and height alternately being configured, cut off produced by the highest blade that to cut off stress produced by the blade that pressure is low from height different, therefore, it is possible to give pulsation to the rubbish that flows together with sewage, it is possible to by the friction produced between blade and rubbish and shearing force rubbish effectively cut off and make its panelization.
Accompanying drawing explanation
Fig. 1 is the longitudinal section representing existing sewage pump.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 is the upward view of the impeller of the sewage pump of Fig. 1.
Fig. 4 is the longitudinal section of the sewage pump representing an embodiment of the present utility model.
Fig. 5 is the partial enlarged drawing of Fig. 4.
Fig. 6 is the upward view of the impeller of the sewage pump of Fig. 4.
Detailed description of the invention
Hereinafter, with reference to Fig. 4 to Fig. 6, the embodiment of sewage pump of the present utility model is described in detail.It addition, in Fig. 4 to Fig. 6, element identically or comparably is marked identical reference, and omits repeat specification.It addition, in Fig. 4 to Fig. 6, there is exaggeration and illustrate the scale of each element, size or omit the situation of a part of element.
Fig. 4 is the longitudinal section of the sewage pump 1 representing an embodiment of the present utility model.As shown in Figure 4, this sewage pump 1 possesses: pumping section 10, motor part 20 and the mechanical sealing part 30 being arranged between pumping section 10 and motor part 20.
Pumping section 10 has: is being internally formed the pump case 12 of whirlpool chamber 11, is being formed with the body gasket 13 of the suction inlet 16 of opening downwards and can be contained in the impeller 14 of inside of whirlpool chamber 11 rotatably.Form the outlet 18 of oriented side opening in pump case 12, connecting in this outlet 18 has not shown discharge pipe.
Motor part 20 has: motor frame 21, main shaft 22, make motor 23 that main shaft 22 rotates and can the upside bearing 24 of supporting spindle 22 and lower side bearing 25 rotatably.Motor 23 comprises: the stator 26 being fixed on the inner peripheral surface of motor frame 21 and the rotor 27 of the radially inner side that can be configured at stator 26 rotatably.Main shaft 22 is fixed on rotor 27, and rotates integrally with rotor 27.Be fixed with the impeller 14 of pumping section 10 in the lower end of main shaft 22, impeller 14 rotates with the rotation of main shaft 22.
Motor part 20 guarantees watertightness by O, filler.The top of motor part 20 is covered by motor cover 41, and supplies electric power via the cable 42 being connected with this motor cover 41 to the stator 26 of motor part 20.
Mechanical sealing part 30 has: is being internally formed the seal casinghousing 32 of mechanical sealing chamber 31 and is being configured at the mechanical sealing member 33 of inside of mechanical sealing chamber 31.This mechanical sealing member 33 has and prevents the press water of pumping section 10 from spilling and immersing the effect of motor part 20.It is sealed with lubrication and the lubricating fluid 34 of cooling of the sliding surface carrying out mechanical sealing member 33 via connector (not shown) in the inside of mechanical sealing chamber 31.
If supplying electric power from cable 42 to the stator 26 of motor part 20, then rotor 27 rotates, and its revolving force is transferred to impeller 14 via main shaft 22.Give kinetic energy by the rotation of impeller 14 to the water in whirlpool chamber 11, thus the water outside sewage pump 1 is sucked from the suction inlet 16 of pump case 12 inside of whirlpool chamber 11.It is inhaled into the water of whirlpool chamber 11, is boosted by the centrifugal force of impeller 14, and discharged from discharge pipe (not shown) by outlet 18.So water outside sewage pump 1 is transferred to outlet 18 by the whirlpool chamber 11 in pump case 12 from suction inlet 16.It addition, pump case 12 and seal casinghousing 32, seal casinghousing 32 and motor frame 21, motor frame 21 and motor cover 41 by bolt etc. and interconnected.
Fig. 5 is the partial enlarged drawing of Fig. 4, and impeller 14 meridian plane section represents.It addition, Fig. 6 is the upward view of impeller 14.As it is shown in figure 5, the impeller 14 of present embodiment possesses: base portion 50 and be configured to the more blades 54 the most opposed with the wall 13A of body gasket 13, it is thus configured to unshrouded impeller.As shown in Figure 6, impeller 54 is bent to swirling.It addition, be formed with back side blade 52 at the back side of impeller 14, remove for the foreign body being mixed in entering into the water under high pressure of the rear side of base portion 50.
Being centrally formed, at base portion 50, the through hole 61 axially extended, main shaft 22 is inserted through this through hole 61.Impeller 14 is fixed on the bottom of main shaft 22 by the fastening of bolt 63 (with reference to Fig. 4).Utilize such structure to carry out from main shaft 22 to the moment of torsion of impeller 14 to transmit.
As it is shown in figure 5, be provided with the multiple blades 57 extended parallel to each other from leading edge 55 to trailing edge 56 at the side 54A of each blade 54.Each blade 57 is formed as highly being gradually increased to trailing edge 56 from leading edge 55.These blades 57 are such as fixed on each blade 54 by welding.The most in figure 6, the diagram of blade 57 is omitted in order to simplify.
By arranging such blade 57, if being sucked from suction inlet 16 together with rubbish by sewage, then the blade 57 that rubbish is rotated together with blade 54 is cut to small pieces, and is expelled to downstream together with sewage.In such manner, it is possible to make its panelization by being cut off by the rubbish of impeller 14, therefore, it is possible to prevent rubbish from blocking between the wall 13A of blade 54 and body gasket 13 and the situation of inaccessible stream.
It addition, in the present embodiment, the height of adjacent blade 57 is different, and blade 57B low with height for the highest blade 57A alternately configures.So by blade 57B low with height for blade 57A high for height is alternately configured, cut off produced by the highest blade 57A that to cut off stress produced by the blade 57B that pressure is low from height different, it is thus possible to give pulsation to the rubbish that flows together with sewage, it is possible to by the friction produced between blade 57 and rubbish and shearing force rubbish effectively cut off and make its panelization.
It addition, in the present embodiment, as it is shown in figure 5, the leading section 55A of the leading edge 55 of blade 54 with respect to leading edge 55 root 55B and with rotary shaft R2Vertical line L3It is positioned at current F2Downstream.The most as shown in Figure 6, the leading section 55A of the leading edge 55 of blade 54 is relative to by the root 55B of the leading edge 55 of blade 54 and rotary shaft R2The line L linked4It is positioned at the side contrary with direction of rotation C.Therefore, even if the rubbish card sucked from suction inlet 16 hangs over the leading edge 55 of blade 54, the rubbish also easy forward end 55A side shifting because of centrifugal force and current, thus easily depart from from leading edge 55.Therefore, it is possible to prevent rubbish from keeping the state blocking the leading edge 55 hanging over blade 54 to be detained and the situation of inaccessible stream.
Above preferred implementation of the present utility model is illustrated, but this utility model is not limited to above-mentioned embodiment, self-evident can implement in a variety of different ways in the range of its technical thought.
Claims (2)
1. a sewage pump, it is characterised in that possess:
Main shaft；
Motor, it makes described main shaft rotate around rotary shaft；
Pump case, being internally formed for sewage is transferred to outlet from suction inlet in this pump case
Whirlpool chamber；And
Impeller, it is fixed on described main shaft and is configured in described whirlpool chamber,
Described impeller possesses:
Blade, it gives centrifugal energy to described sewage；And
Multiple blades, they are by height shape in the way of the leading edge of described blade is gradually increased to trailing edge
The surface of blade described in Cheng Yu,
The leading section of the described leading edge of described blade with respect to described leading edge root and with institute
State the vertical line of rotary shaft and be positioned at downstream, and relative to by the described root of described leading edge and institute
The line stating rotary shaft link is positioned at the side contrary with the direction of rotation of described impeller.
Sewage pump the most according to claim 1, it is characterised in that
The plurality of blade includes:
First blade；With
Second blade, it is adjacent to described first blade, and the first blade described in aspect ratio
High.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620411750.2U CN205744472U (en) | 2016-05-09 | 2016-05-09 | Sewage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620411750.2U CN205744472U (en) | 2016-05-09 | 2016-05-09 | Sewage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205744472U true CN205744472U (en) | 2016-11-30 |
Family
ID=57370474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620411750.2U Expired - Fee Related CN205744472U (en) | 2016-05-09 | 2016-05-09 | Sewage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205744472U (en) |
-
2016
- 2016-05-09 CN CN201620411750.2U patent/CN205744472U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20180509 |