CN107588034A - A kind of cutter device of sewage pump - Google Patents
A kind of cutter device of sewage pump Download PDFInfo
- Publication number
- CN107588034A CN107588034A CN201710886875.XA CN201710886875A CN107588034A CN 107588034 A CN107588034 A CN 107588034A CN 201710886875 A CN201710886875 A CN 201710886875A CN 107588034 A CN107588034 A CN 107588034A
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- CN
- China
- Prior art keywords
- cutter
- cutting blade
- pump
- sewage pump
- face
- 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.)
- Withdrawn
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of cutter device of sewage pump, described sewage pump include the pump housing and big passage impeller；The big passage impeller is arranged on the center of the pump housing；The export center of the big passage impeller is alignd with the export center of the pump housing；Described cutter device includes fixing cutter and rotary cutter；Described fixing cutter is fixed on the entrance of the pump housing；The fixing cutter inner periphery is provided with three or three above cutter head；Fixing cutter interior circle center equipped with one by central shaft hole fastened by screw in the cylinder cutter shaft of pump shaft end, three cutting blades integrally cast are equipped with the outer circle wall of the cylinder cutter shaft, it is a sweptback inclined-plane before the cutting blade, and it is in the face preparation less than 15 ° to be provided with one on the windward side of each cutting blade；It has rational in infrastructure, simple, and easy to install, using effect is good, can improve can sewage pump service efficiency, the features such as extending sewage pump service life.
Description
Technical field
The present invention relates to a kind of cutter device of sewage pump, belong to sewage pump technical field.
Background technology
In the prior art, the cutter device of sewage pump, also referred to as proof submersible sand discharging pump is using before and after fixing cutter and rotating knife
Mounting structural mode, the several that blade is tangent of several flowing holes and rotating knife is provided with fixing cutter, plays dissection, so
Fixing cutter and rotating knife certainly will have certain gap, fibre object is had in operation process be wrapped in pump shaft by gap and be allowed to
Pump shaft is stuck to cause motor overheating to burn out.Sewage pump cutter device disclosed above uses there is unreasonable structure in addition
Effect is poor, the defects of installing and using inconvenience.
The content of the invention
It is an object of the invention to overcome the shortcomings of the prior art, and offer is a kind of rational in infrastructure, simple, and installation makes
With convenient, using effect is good, can improve can sewage pump service efficiency, extend the submersible sewage pump of sewage pump service life with cutting dress
Put.
The present invention is achieved by the following technical solutions：A kind of cutter device of sewage pump, described sewage pump bag
Include the pump housing and big passage impeller；The big passage impeller is arranged on the center of the pump housing；In the outlet of the big passage impeller
The heart aligns with the export center of the pump housing；Described cutter device includes fixing cutter and rotary cutter；Described fixing cutter is fixed on
The entrance of the pump housing；The fixing cutter inner periphery is provided with three or three above cutter head；Filled in the interior circle center of fixing cutter
Have one by central shaft hole fastened by screw in the cylinder cutter shaft of pump shaft end, the excircle of the cylinder cutter shaft
Three cutting blades integrally cast are equipped with wall, are a sweptback inclined-plane before the cutting blade, and every
It is in the face preparation less than 15 ° that one is provided with the windward side of one cutting blade.
As preferred：Axially concavo-convex bar-shaped trough, cutting are provided with cutter shaft outer circle wall between described cutting blade
The front end face of blade is in same transverse plane with the front end face of cylinder cutter shaft；The rear end face of cutting blade is connected on cylinder for one
On body cutter shaft outer circle wall.
As preferred：The rear end face of described cutting blade is provided with ladder with the joint of cutter shaft outer circle wall and is connected
Side, the central shaft hole of the cutter shaft are located at front end face and are provided with the screw counterbore inside contracted.
The present invention have it is rational in infrastructure, simple, easy to install, using effect is good, can improve can sewage pump use
Efficiency, extend sewage pump service life the features such as.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is cutting tool structural representation of the present invention.
Fig. 3 is Fig. 2 A direction views.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail：Shown in Fig. 1-3, a kind of sewage pump of the present invention is used
Cutter device, described sewage pump includes the pump housing 1 and big passage impeller 2；The big passage impeller 2 is arranged in the pump housing 1
Heart position；The export center of the big passage impeller 2 and the center alignment of outlet 3 of the pump housing；Described cutter device includes fixing
Knife 4 and rotary cutter 5；Described fixing cutter 4 is fixed on the entrance of the pump housing 1；The inner periphery of fixing cutter 4 is provided with three
Or three above cutter head 6；Fastened by screw is used in the end of pump shaft 8 by central shaft hole 7 equipped with one in the interior circle center of fixing cutter 6
Cylinder cutter shaft 9, be equipped with three cutting blades 10 integrally cast on the outer circle wall of the cylinder cutter shaft 9,
It is a sweptback inclined-plane 11 before the cutting blade 10, and one is provided with the windward side of each cutting blade 10
In the face preparation 12 less than 15 °.
In Fig. 2,3, axially concavo-convex bar-shaped trough 13 is provided with the cutter shaft outer circle wall between described cutting blade 10, is cut
The front end face of cutting blade 10 is in same transverse plane 14 with the front end face of cylinder cutter shaft；The rear end face of cutting blade 10 is a phase
It is connected on the outer circle wall of cylinder cutter shaft 9.
The rear end face of cutting blade 10 of the present invention is provided with ladder with the joint of the outer circle wall of cutter shaft 9 and is connected side
15, the central shaft hole 7 of the cutter shaft 9 is located at front end face and is provided with the screw counterbore 16 inside contracted.
Claims (3)
1. a kind of cutter device of sewage pump, described sewage pump includes the pump housing and big passage impeller；The big passage impeller
Installed in the center of the pump housing；The export center of the big passage impeller is alignd with the export center of the pump housing；It is characterized in that
Described cutter device includes fixing cutter and rotary cutter；Described fixing cutter is fixed on the entrance of the pump housing；It is described solid
Stationary knife inner periphery is provided with three or three above cutter head；Pass through central shaft hole screw equipped with one in the interior circle center of fixing cutter
The cylinder cutter shaft of pump shaft end is anchored on, three integrally cast are equipped with the outer circle wall of the cylinder cutter shaft
Cutting blade, it is a sweptback inclined-plane before the cutting blade, and is set on the windward side of each cutting blade
It is in the face preparation less than 15 ° to have one.
2. the cutter device of the sewage pump according to claim 1, it is characterised in that：Between described cutting blade
Axially concavo-convex bar-shaped trough is provided with cutter shaft outer circle wall, the front end face of cutting blade is in same with the front end face of cylinder cutter shaft
One transverse plane；The rear end face of cutting blade is connected on cylinder cutter shaft outer circle wall for one.
3. sewage pump cutting tool according to claim 2, it is characterised in that the rear end face of described cutting blade with
The joint of cutter shaft outer circle wall is provided with ladder connection side, and the central shaft hole of the cutter shaft is located at front end face and is provided with what is inside contracted
Screw counterbore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710886875.XA CN107588034A (en) | 2017-09-27 | 2017-09-27 | A kind of cutter device of sewage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710886875.XA CN107588034A (en) | 2017-09-27 | 2017-09-27 | A kind of cutter device of sewage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107588034A true CN107588034A (en) | 2018-01-16 |
Family
ID=61047161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710886875.XA Withdrawn CN107588034A (en) | 2017-09-27 | 2017-09-27 | A kind of cutter device of sewage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107588034A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946660A (en) * | 2020-08-25 | 2020-11-17 | 赣州市闻誉科技有限公司 | Impeller structure of centrifugal pump |
-
2017
- 2017-09-27 CN CN201710886875.XA patent/CN107588034A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180116 |