CN203175889U - Submersible sewage pump - Google Patents
Submersible sewage pump Download PDFInfo
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- CN203175889U CN203175889U CN 201320187315 CN201320187315U CN203175889U CN 203175889 U CN203175889 U CN 203175889U CN 201320187315 CN201320187315 CN 201320187315 CN 201320187315 U CN201320187315 U CN 201320187315U CN 203175889 U CN203175889 U CN 203175889U
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- rotating shaft
- pump housing
- blade
- fixed blade
- pump
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Abstract
The utility model provides a submersible sewage pump and belongs to the technical field of machinery. The submersible sewage pump solves the problems of poor working stability and the like of an existing submersible sewage pump. The submersible sewage pump comprises a motor, an impeller and a pump body, the pump body is provided with a water inlet and a water outlet, the motor is fixedly connected with the pump body, a rotating shaft of the motor extends inside the pump body, the rotating shaft of the motor is fixedly connected with the impeller which is arranged inside the pump body, the pump body is fixedly connected with a fixed blade with covers the water inlet, the fixed blade is provided with a plurality of through holes which are communicated with an inner cavity of the pump body, an end portion of the rotating shaft penetrates the fixed blade and is fixedly connected with a rotating blade which is provided with a cutting edge adhered to the outer surface of the fixing blade, and the distribution range of the through holes on the fixed blade is within a round cutting range that the cutting edge passes when the cutting edge rotates along with the rotating shaft. The submersible sewage pump has the advantages of being good in working stability, long in service life and the like.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of water pump, particularly a kind of proof submersible sand discharging pump.
Background technique
In sewage disposal system, proof submersible sand discharging pump is utilization means of delivery comparatively widely.Sewage water discharge pump in the market generally by the pump housing with inlet opening and delivery outlet, be installed in the motor on the pump housing and formed by the motor-driven impeller that is positioned at the pump housing, its simple in structure, function singleness, in actual use, sewage often has many bulks, granular or long fibre shape impurity, when proof submersible sand discharging pump runs into these impurity, its impeller is stopped up easily and stuck phenomenon occurred, sometimes even can damage proof submersible sand discharging pump itself, have a strong impact on the working life of proof submersible sand discharging pump.
At the problem of present existence, people have designed the proof submersible sand discharging pump that can rub impurity in the sewage, for example the disclosed a kind of broken proof submersible sand discharging pump [application number: 201120309642.1 of Chinese patent literature data; Notice of authorization number: CN202250915U], it comprises pump case, the pump case lower end connects the blade cavity with suction port, blade cavity one side has outlet and is connected with the drainage pipe that is connected in pump case one side, in pump case, be provided with a motor, motor shaft stretches in the blade cavity and be connected two blades of also connecting with blade on the motor shaft of blade lower end.
During above-mentioned broken submersible sewage pump work, two blades in the pump housing successively carry out effective fragmentation to straw natural pond slag, gunnysack, Polywoven Bag and the isometric fiber impurity of weeds, under the effect of blade, the dirt after the fragmentation is discharged smoothly again, but the broken halfway situation of long fibre impurity in use still can appear, long fibre impurity can twine, clogging impeller, still there is stuck phenomenon in impeller, influences the working life of proof submersible sand discharging pump.Also have a kind of proof submersible sand discharging pump directly the impeller edge to be polished into sharp blade-like, thereby by wheel rotation chopping sewage medium-length fibre impurity, but change blade wheel structure like this, can destroy submersible sewage lift of pump and hydraulic performance, can occur long fibre impurity in the using process and be wrapped in the impeller root, cause impeller stuck and can't work.
Summary of the invention
The purpose of this utility model is at the above-mentioned problems in the prior art, provide a kind of impeller can be not stuck, the proof submersible sand discharging pump of good operating stability.
The purpose of this utility model can realize by following technical proposal: a kind of proof submersible sand discharging pump, comprise motor, impeller and the pump housing, the described pump housing has water intake and water outlet, described motor is connected mutually with the pump housing and the rotating shaft of motor is stretched in the pump housing, be fixed with the impeller that is positioned at the pump housing in the rotating shaft of described motor, it is characterized in that, be fixed with the fixed blade that a slice covers water intake on the described pump housing, described fixed blade has several through holes that is communicated in pump housing inner chamber, the end of described rotating shaft passes fixed blade and this end is fixed with rotating blade, described rotating blade has the cutting edge that fits in the fixed blade outer surface, in the inswept rounded cut coverage that the distribution of described through hole on fixed blade is in described cutting edge when rotating with rotating shaft.
This proof submersible sand discharging pump covers water intake by fixed blade, stop the floating debris in the sewage, suspended matter and long fibre impurity, avoid these impurity directly to enter in the pump housing, like this when this submersible sewage pump work, the rotating shaft impeller of motor and rotating blade be high speed rotating together, the cutting edge of rotating blade is to floating debris, suspended matter and long fibre impurity cut, pulverize, here because cutting edge fits in the fixed blade outer surface, so long fibre impurity can not twine cutting edge, guarantee good cutting effect, impurity after the cutting and grinding enters in the pump housing from through hole with sewage, driven from water outlet by impeller and discharge, the impurity after the cutting and grinding can not twine impeller, can not cause impeller stuck, this proof submersible sand discharging pump good operating stability, long service life.
In above-mentioned a kind of proof submersible sand discharging pump, the inboard of the relative cutting edge sense of rotation of described through hole has acute angle-shaped cutting part.Cutting part is matched with cutting edge and uses, and long fibre impurity one side is subjected to the cutting edge cutting, and opposite side is subjected to the cutting part cutting, has strengthened the radial cuts effect, and long fibre impurity is cut off easily.
In above-mentioned a kind of proof submersible sand discharging pump, described through hole is the enlarging shape, through hole in the opening area of fixed blade internal surface greater than the opening area of through hole in the fixed blade outer surface.Long fibre impurity after cutting off like this, pulverizing enters pump housing inside easily and is taken out of the pump housing by impeller, can not stop up through hole, guarantees this proof submersible sand discharging pump stable operation.
In above-mentioned a kind of proof submersible sand discharging pump, the axle sleeve that described rotating blade has the roller end of being inserted in and circumferentially is connected with rotating shaft, described axle sleeve outer end has recessed shoulder block, and against a slice pad is arranged, screw passes pad and roller end is pressed in shoulder block with pad on the described shoulder block.Realized installing and fixing of rotating blade like this, because shoulder block is recessed, so screw is positioned at the installation groove that shoulder block forms, long fibre impurity can not be wrapped on the screw.
In above-mentioned a kind of proof submersible sand discharging pump, described axle sleeve circumferentially has a circle retaining edge outward, and described retaining is along the outer surface that is resisted against fixed blade.The setting on retaining edge avoids impurity such as silt to enter the joint of rotating shaft and axle sleeve, and the assurance rotating blade uses for a long time.
In above-mentioned a kind of proof submersible sand discharging pump, described rotating blade has 3 to 6 circumferential equally distributed cutting edges.The quantity of cutting edge can guarantee when rotated long fibre impurity effectively to be cut, pulverizes like this.
In above-mentioned a kind of proof submersible sand discharging pump, has the clear water chamber of filling clear water between described motor and the pump housing, seal by mechanical sealing element and outside framework oil seal between described clear water chamber and the rotating shaft, offer the weep hole that is communicated with the clear water chamber on the described pump housing, the described weep hole plug that has been threaded.Clear water in the clear water chamber can absorb the heat that machine operation produces, and makes motor to work long hours, and has also prolonged the working life of motor simultaneously, opens plug and can change the clear water that becomes muddy after the long-time use, guarantees radiating effect.
Compared with prior art, this proof submersible sand discharging pump has been stopped the phenomenon that the floating debris in the sewage, suspended matter, long fibre impurity stop up, twine impeller, impeller can be not stuck, this proof submersible sand discharging pump working procedure good stability, long service life, this proof submersible sand discharging pump thermal diffusivity is good in addition, for a long time proper functioning.
Description of drawings
Fig. 1 is this submersible sewage pump structure sectional view.
Fig. 2 is the structural drawing of fixed blade in this proof submersible sand discharging pump.
Fig. 3 is the sectional structure enlarged view in Fig. 2 A-A cross section.
Fig. 4 is the structural drawing of rotating blade in this proof submersible sand discharging pump.
Among the figure, 1, motor; 1a, rotating shaft; 2, impeller; 3, the pump housing; 3a, water intake; 3b, water outlet; 4, fixed blade; 4a, through hole; 4a1, cutting part; 5, rotating blade; 5a, cutting edge; 5b, axle sleeve; 5b1, shoulder block; 5b2, retaining edge; 6, pad; 7, screw; 8, clear water chamber; 9, mechanical sealing element; 10, outside framework oil seal; 11, weep hole; 12, plug.
Embodiment
Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, this proof submersible sand discharging pump comprises motor 1, impeller 2 and the pump housing 3, the pump housing 3 has water intake 3a and water outlet 3b, motor 1 is connected mutually with the pump housing 3 and the rotating shaft 1a of motor 1 stretches in the pump housing 3, be fixed with the impeller 2 that is positioned at the pump housing 3 on the rotating shaft 1a of motor 1, be fixed with the fixed blade 4 that a slice covers water intake 3a on the pump housing 3, fixed blade 4 has several through hole 4a that is communicated in the pump housing 3 inner chambers, the end of rotating shaft 1a passes fixed blade 4 and this end is fixed with rotating blade 5, rotating blade 5 has the cutting edge 5a that fits in fixed blade 4 outer surfaces, in the inswept rounded cut coverage that the distribution of through hole 4a on fixed blade 4 is in cutting edge 5a when rotating with rotating shaft 1a.
Further describe in detail, as Fig. 2, shown in Figure 3, through hole 4a forms a circle centered by rotating shaft 1a, and the quantity of through hole 4a is 8 in the present embodiment, and in order to increase the radial cuts effect, the inboard of the relative cutting edge 5a of through hole 4a sense of rotation has acute angle-shaped cutting part 4a1; In order to guarantee this proof submersible sand discharging pump working stability, through hole 4a is the enlarging shape, through hole 4a in the opening area of fixed blade 4 internal surfaces greater than the opening area of through hole 4a in fixed blade 4 outer surfaces, long fibre impurity after cutting off like this, pulverizing enters the pump housing 3 inside easily and is taken out of the pump housing 3 by impeller 2, can not stop up through hole 4a.
As shown in Figure 1 and Figure 4, rotating blade 5 has and is inserted in rotating shaft 1a end and is connected by key with rotating shaft 1a and the axle sleeve 5b that circumferentially is connected, axle sleeve 5b outer end has recessed shoulder block 5b1, shoulder block 5b1 goes up against a slice pad 6 is arranged, screw 7 passes pad 6 and rotating shaft 1a end is pressed in shoulder block 5b1 with pad 6, axle sleeve 5b circumferentially also has a circle retaining outward along 5b2, retaining is resisted against the outer surface of fixed blade 4 along 5b2, retaining avoids impurity such as silt to enter the joint of rotating shaft 1a and axle sleeve 5b along the setting of 5b2, guarantee that rotating blade 5 uses for a long time.Rotating blade 5 has 3 to 6 circumferential equally distributed cutting edge 5a, and rotating blade 5 has 3 wafer cutting edge 5a in the present embodiment.In order to increase heat dispersion, guarantee the long-time proper functioning of this proof submersible sand discharging pump, has the clear water chamber 8 of filling clear water between motor 1 and the pump housing 3, seal by mechanical sealing element 9 and outside framework oil seal 10 between clear water chamber 8 and the rotating shaft 1a, mechanical sealing element 9 is between the lower end cap and the pump housing 3 outer walls of motor 1, outside framework oil seal 10 is positioned at the pump housing 3 inwall places, offers the weep hole 11 that is communicated with clear water chamber 8 on the pump housing 3, weep hole 11 plug 12 that has been threaded.
This proof submersible sand discharging pump covers water intake 3a by fixed blade 4, stop the floating debris in the sewage, suspended matter and long fibre impurity, avoid these impurity directly to enter in the pump housing 3, like this when this submersible sewage pump work, the rotating shaft 1a impeller 2 of motor 1 and rotating blade 5 be high speed rotating together, the floating debris of cutting edge 5a of rotating blade 5, suspended matter and long fibre impurity cut, pulverize, here because cutting edge 5a fits in fixed blade 4 outer surfaces, so long fibre impurity can not twine cutting edge 5a, guarantee good cutting effect, impurity after the cutting and grinding enters in the pump housing 3 from through hole 4a with sewage, driven from water outlet 3b by impeller 2 and discharge, the impurity after the cutting and grinding can not twine impeller 2, can not cause impeller 2 stuck, this proof submersible sand discharging pump good operating stability, long service life.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used motor 1, rotating shaft 1a, impeller 2, the pump housing 3, water intake 3a, water outlet 3b, fixed blade 4, through hole 4a, cutting part 4a1, rotating blade 5, cutting edge 5a, axle sleeve 5b, shoulder block 5b1, retaining along terms such as 5b2, pad 6, screw 7, clear water chamber 8, mechanical sealing element 9, outside framework oil seal 10, weep hole 11, plugs 12 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (7)
1. proof submersible sand discharging pump, comprise motor (1), impeller (2) and the pump housing (3), the described pump housing (3) has water intake (3a) and water outlet (3b), described motor (1) is connected mutually with the pump housing (3) and the rotating shaft (1a) of motor (1) is stretched in the pump housing (3), be fixed with the impeller (2) that is positioned at the pump housing (3) in the rotating shaft (1a) of described motor (1), it is characterized in that, be fixed with the fixed blade (4) that a slice covers water intake (3a) on the described pump housing (3), described fixed blade (4) has several through holes (4a) that is communicated in the pump housing (3) inner chamber, the end of described rotating shaft (1a) passes fixed blade (4) and this end is fixed with rotating blade (5), described rotating blade (5) has the cutting edge (5a) that fits in fixed blade (4) outer surface, in the inswept rounded cut coverage that the distribution of described through hole (4a) on fixed blade (4) is in described cutting edge (5a) when rotating with rotating shaft (1a).
2. a kind of proof submersible sand discharging pump according to claim 1 is characterized in that, described through hole (4a) inboard of cutting edge (5a) sense of rotation relatively has acute angle-shaped cutting part (4a1).
3. a kind of proof submersible sand discharging pump according to claim 2, it is characterized in that, described through hole (4a) is the enlarging shape, through hole (4a) in the opening area of fixed blade (4) internal surface greater than the opening area of through hole (4a) in fixed blade (4) outer surface.
4. according to claim 1 or 2 or 3 described a kind of proof submersible sand discharging pumps, it is characterized in that, the axle sleeve (5b) that described rotating blade (5) has the rotating shaft of being inserted in (1a) end and circumferentially is connected with rotating shaft (1a), described axle sleeve (5b) outer end has recessed shoulder block (5b1), described shoulder block (5b1) is gone up against a slice pad (6) is arranged, and a screw (7) passes pad (6) and rotating shaft (1a) end is pressed in shoulder block (5b1) with pad (6).
5. a kind of proof submersible sand discharging pump according to claim 4 is characterized in that, described axle sleeve (5b) is outer circumferentially to have a circle retaining along (5b2), and described retaining is resisted against the outer surface of fixed blade (4) along (5b2).
6. a kind of proof submersible sand discharging pump according to claim 5 is characterized in that, described rotating blade (5) has 3 to 6 circumferential equally distributed cutting edges (5a).
7. according to claim 1 or 2 or 3 described a kind of proof submersible sand discharging pumps, it is characterized in that, has the clear water chamber (8) of filling clear water between described motor (1) and the pump housing (3), seal by mechanical sealing element (9) and outside framework oil seal (10) between described clear water chamber (8) and the rotating shaft (1a), offer the weep hole (11) that is communicated with clear water chamber (8) on the described pump housing (3), described weep hole (11) plug (12) that has been threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320187315 CN203175889U (en) | 2013-04-15 | 2013-04-15 | Submersible sewage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320187315 CN203175889U (en) | 2013-04-15 | 2013-04-15 | Submersible sewage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203175889U true CN203175889U (en) | 2013-09-04 |
Family
ID=49072592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320187315 Expired - Fee Related CN203175889U (en) | 2013-04-15 | 2013-04-15 | Submersible sewage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203175889U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121229A (en) * | 2014-08-13 | 2014-10-29 | 无锡智数商务信息咨询有限公司 | Sewage pump not prone to being blocked |
| CN104179696A (en) * | 2014-08-08 | 2014-12-03 | 苏州通力电气有限公司 | Cutting submersible pump |
-
2013
- 2013-04-15 CN CN 201320187315 patent/CN203175889U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179696A (en) * | 2014-08-08 | 2014-12-03 | 苏州通力电气有限公司 | Cutting submersible pump |
| CN104121229A (en) * | 2014-08-13 | 2014-10-29 | 无锡智数商务信息咨询有限公司 | Sewage pump not prone to being blocked |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20140415 |