CN206682028U - A kind of pump shaft - Google Patents
A kind of pump shaft Download PDFInfo
- Publication number
- CN206682028U CN206682028U CN201720440194.6U CN201720440194U CN206682028U CN 206682028 U CN206682028 U CN 206682028U CN 201720440194 U CN201720440194 U CN 201720440194U CN 206682028 U CN206682028 U CN 206682028U
- Authority
- CN
- China
- Prior art keywords
- pump shaft
- annular protrusion
- annular groove
- stopper slot
- bar
- 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
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
It the utility model is related to a kind of pump shaft, the body includes first step, second step, the 3rd step and the 4th step, bar-shaped trough is distributed with the first step even circumferential, 4th stepped outer surface is provided with screw thread, the thread surface offers stopper slot, 3rd step is provided with annular protrusion, annular groove and keyway, and the both sides of the annular protrusion are respectively equipped with annular groove, conical socket is provided with the end face center of the first step.The pump shaft structure is reasonable in design simple, is connected by the bar-shaped trough for setting uniform circular to be distributed with impeller holding, with motor by the threaded connection with stopper slot, makes to be connected firmly, difficult for drop-off, safe, while also improves the service life of pump shaft.
Description
Technical field
It the utility model is related to pump technical field, and in particular to a kind of pump shaft.
Background technology
In centrifugal pump, the effect of pump shaft is mainly passing power, and support impeller is maintained at the normal operation of working position amount.It
One end is connected by shaft coupling with motor reel, and the other end supports impeller and rotated, equipped with bearing, axial seal on axle
Deng parts.The effect that bending, torsion and friction etc. supply combined stress is subject in pump shaft operation process, pump shaft may be caused
With impeller either with motor connection loosely or the problems such as pump shaft is broken in itself, thus the service life for influenceing pump shaft shortens and peace
Full hidden danger.
Utility model content
For the deficiency of background technology, the utility model provides a kind of pump shaft, and overcomes disadvantages described above.
Technical scheme is used by the utility model solves its technical problem：
A kind of pump shaft, including pump shaft body, the body include first step, second step, the 3rd step and the 4th
Bar-shaped trough is distributed with rank, the first step even circumferential, and the 4th stepped outer surface is provided with screw thread, and the thread surface offers
Stopper slot, the 3rd step are provided with annular protrusion, annular groove and keyway, and the both sides of the annular protrusion are respectively equipped with ring
Shape groove, conical socket is provided with the end face center of the first step.
The bar-shaped trough is arranged in an axially parallel mode with pump shaft body.
The U-shaped structure setting of stopper slot, and opening is directed away from pump shaft body direction.
The adjacent annular protrusion of annular groove.
The keyway is placed between annular protrusion and external screw thread.
The first step, second step, the 3rd step and the 4th step are integral type structure and are coaxially disposed.
The beneficial effects of the utility model are：Due to taking above-mentioned technical proposal, effectively improve existing pump shaft with
Impeller or with motor connection loosely the problem of, the pump shaft structure is reasonable in design simple, passes through the bar for setting uniform circular to be distributed
Shape groove is connected with impeller holding, with motor by the threaded connection with stopper slot, makes to be connected firmly, difficult for drop-off, security
Height, while also improve the service life of pump shaft.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is cross section structure diagram of the present utility model.
1 in figure, pump shaft body；2nd, bar-shaped trough；3rd, screw thread；4th, stopper slot；5th, annular protrusion；6th, annular groove；7th, it is annular
Groove；8th, first step；9th, second step；10th, the 3rd step；11st, the 4th step；12nd, keyway；13rd, conical socket.
Embodiment
The utility model embodiment is described further below in conjunction with the accompanying drawings.
As shown in Figure 1 with Figure 2, a kind of pump shaft, including pump shaft body 1, the body 1 include first step 8, second
Rank 9, the 3rd step 10 and the 4th step 11, the first step 8, second step 9, the 3rd step 10 and the 4th step 11 are one
Body formula structure and it is coaxially disposed.Bar-shaped trough 2, the bar-shaped trough 2 and the axle of pump shaft body 1 is distributed with the first step even circumferential
To be arrangeding in parallel, the outer surface of the 4th step 11 is provided with screw thread 3, and the surface of screw thread 3 offers stopper slot 4, the 3rd step
Annular protrusion 5, annular groove 6 and keyway 12 are provided with, the bottom surface of the stopper slot 4 and keyway 12 is parallel to each other, the annular
Groove 6 is used for fixed seal ring, during installation, plays sealing function；The both sides of the annular protrusion 5 are respectively equipped with annular groove 7, institute
The adjacent annular protrusion 5 of annular groove 7 is stated, 7 built-in rubber ring of annular groove, reduces the abrasion of pump shaft body 1, ensures annular protrusion 5
Stability, increase the service life；Conical socket 13 is provided with the end face center of the first step 8, conical socket 13 is being installed
Impeller is to play guide effect, and impeller is provided with the projection being engaged with conical socket 13, and projection is leaned on along the direction of conical socket 13
Closely, impeller is quick and precisely arranged in bar-shaped trough 2, improve packaging efficiency, reduce cost.
The 4 U-shaped structure setting of stopper slot, and opening be directed away from the direction of pump shaft body 1, when motor connecting structure with
When external screw thread 3 is threadedly coupled on 4th step 11, the internal thread of motor connecting structure is provided with the groove corresponding with stopper slot 4,
When the groove is corresponding with stopper slot 4, flat key 14 is inserted in the groove of its composition, the relative rotation of the restrictive pump shaft body 1 of flat key 14,
Ensure that motor contact will not make threaded connection loosen or come off due to rotation, fastness is high.
The keyway 12 is placed between annular protrusion 5 and external screw thread 3, and keyway 12 is used for pump shaft body 1 and assembles position-limiting action,
Pump shaft body 1 firmly installs, and is not easy to loosen.
The utility model effectively improve existing pump shaft and impeller or with motor connection loosely the problem of, the pump shaft
It is reasonable in design simple, it is connected with impeller holding by the bar-shaped trough for setting uniform circular to be distributed, is passed through with motor with limited
The threaded connection of position groove, makes to be connected firmly, difficult for drop-off, safe, while also improves the service life of pump shaft.
Every technical staff's notice：Although the utility model describes according to above-mentioned embodiment, this
The invention thought of utility model is not limited to that utility model, any repacking with inventive concept, will all include this specially
In sharp scope of patent protection.
Claims (6)
1. a kind of pump shaft, including pump shaft body（1）, it is characterised in that：The body（1）Including first step（8）, second step
（9）, the 3rd step（10）And the 4th step（11）, bar-shaped trough is distributed with the first step even circumferential（2）, the 4th step
（11）Outer surface is provided with screw thread（3）, the thread surface offers stopper slot（4）, the 3rd step is provided with annular protrusion
（5）, annular groove（6）And keyway（12）, the annular protrusion（5）Both sides be respectively equipped with annular groove（7）, the first step
（8）End face center at be provided with conical socket（13）.
2. according to a kind of pump shaft described in claim 1, it is characterised in that：The bar-shaped trough（2）With pump shaft body（1）It is axially flat
Row is set.
3. according to a kind of pump shaft described in claim 1, it is characterised in that：The stopper slot（4）U-shaped structure setting, and open
Mouth is directed away from pump shaft body（1）Direction.
4. according to a kind of pump shaft described in claim 1, it is characterised in that：The annular groove（7）Adjacent annular protrusion（5）.
5. according to a kind of pump shaft described in claim 1, it is characterised in that：The keyway（12）It is placed in annular protrusion（5）With it is outer
Screw thread（3）Between.
6. according to a kind of pump shaft described in claim 1, it is characterised in that：The first step（8）, second step（9）, the 3rd
Step（10）And the 4th step（11）For integral type structure and it is coaxially disposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720440194.6U CN206682028U (en) | 2017-04-25 | 2017-04-25 | A kind of pump shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720440194.6U CN206682028U (en) | 2017-04-25 | 2017-04-25 | A kind of pump shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206682028U true CN206682028U (en) | 2017-11-28 |
Family
ID=60404185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720440194.6U Expired - Fee Related CN206682028U (en) | 2017-04-25 | 2017-04-25 | A kind of pump shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206682028U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112354927A (en) * | 2020-03-29 | 2021-02-12 | 苏州市臻湖流体技术有限公司 | Intelligent cleaning linear pump |
-
2017
- 2017-04-25 CN CN201720440194.6U patent/CN206682028U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112354927A (en) * | 2020-03-29 | 2021-02-12 | 苏州市臻湖流体技术有限公司 | Intelligent cleaning linear pump |
| CN112354927B (en) * | 2020-03-29 | 2021-09-07 | 苏州市臻湖流体技术有限公司 | Intelligent cleaning linear pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20171128 Termination date: 20180425 |