CN206845523U - The attachment structure of motor shaft in a kind of deep well pump - Google Patents
The attachment structure of motor shaft in a kind of deep well pump Download PDFInfo
- Publication number
- CN206845523U CN206845523U CN201720661382.1U CN201720661382U CN206845523U CN 206845523 U CN206845523 U CN 206845523U CN 201720661382 U CN201720661382 U CN 201720661382U CN 206845523 U CN206845523 U CN 206845523U
- Authority
- CN
- China
- Prior art keywords
- motor shaft
- shaft
- pump
- deep well
- attachment structure
- 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
Abstract
The utility model provides a kind of attachment structure of motor shaft in deep well pump, belongs to fluid machinery technical field.It solves the problems, such as that axiality is low between existing pump shaft and motor shaft and later period maintenance cost is higher.The attachment structure of motor shaft in this deep well pump, including motor shaft, pump shaft, water inlet joint and the seal receptacle being connected with water inlet joint, one end of motor shaft is located in water inlet joint through seal receptacle and is connected with pump shaft, the end set of motor shaft has the connecting key of rectangular parallelepiped structure, it is integral type structure between connecting key and motor shaft, the end of pump shaft, which inwardly offers, is engaged groove with connector, coordinates between connecting key and groove for gap, two bearings are provided between motor shaft and seal receptacle.The utility model instead of traditional shaft coupling makes it have the advantages of production cost is lower and later period maintenance facilitates by the mutual cooperation of connecting key and groove with this.
Description
Technical field
The utility model belongs to fluid machinery technical field, is related to a kind of water pump, motor in more particularly to a kind of deep well pump
The attachment structure of axle.
Background technology
Deep well pump is that motor and water pump direct-connected integrated pull the plug the water lift equipment of work, has simple in construction, unit effect
Rate is high, and noise is small, safe and reliable to operation, it is convenient to install and maintain the advantages of.Must be hydraulically full in suction line and pump before turn on pump, open
Impeller rotates at a high speed after pump, and liquid therein rotates, under the influence of centrifugal force, flies away from impeller and outwards penetrate together with blade
Going out, the liquid of the injection speed in pump case diffuser casing is gradually slack-off, and pressure gradually increases, and is then flowed out from pump discharge discharge pipe,
Both vacuum low-pressure areas without air without liquid now are formed because liquid is thrown toward surrounding at blade center, liquid pool
In liquid flow into pump in the presence of the atmospheric pressure of pond face.
Typically it is connected on the market in the deep well pump of routine between its pump shaft and motor shaft by shaft coupling at present, but is passed through
Axiality between the two reduces after shaft coupling is connected, and the pump housing easily wears when running, or what is had direct prolong motor shaft
Long, the structure needs whole axle repair and replacement cost higher because both are integrated, during the maintenance in later stage.
The content of the invention
The purpose of this utility model is to be directed to the above-mentioned problems in the prior art, there is provided one kind can be reduced effectively
The attachment structure of motor shaft in production cost and the convenient deep well pump of later period maintenance.
The purpose of this utility model can be realized by following technical proposal：The connection knot of motor shaft in a kind of deep well pump
Structure, including motor shaft, pump shaft, water inlet joint and the seal receptacle being connected with water inlet joint, one end of the motor shaft pass through seal receptacle
It is connected in water inlet joint and with pump shaft, it is characterised in that the end set of the motor shaft has the connection of rectangular parallelepiped structure
Key, and be integral type structure between described connecting key and motor shaft, the end of the pump shaft inwardly offers and connector phase
Fit, coordinate between the connecting key and groove for gap, two axles are provided between described motor shaft and seal receptacle
Hold.
Its technique effect of the attachment structure of motor shaft is in this deep well pump：Between motor shaft and pump shaft by connecting key with it is recessed
The mutual cooperation of groove replaces traditional shaft coupling with this, and between the two coaxial is made while effectively reducing production cost
Du Genggao, further, when deep well pump abrasion occurs after long-term use, due to being split type knot between motor shaft and pump shaft
Structure, pump shaft need to be only changed without motor shaft is dismantled, wherein motor shaft is as power end, the motor in the service life of deep well pump
Axle is not in abrasion, in order to facilitate the assembling between motor shaft and pump shaft, is coordinated between connecting key and groove for gap.
In a kind of above-mentioned deep well pump in the attachment structure of motor shaft, set in described seal receptacle above bearing
There is mechanical seal.It can prevent liquid from entering motor internal to damage motor by mechanical seal.
In a kind of above-mentioned deep well pump in the attachment structure of motor shaft, sealing is provided with above the mechanical seal
Circle.The sealing property of the pump housing can further be strengthened by sealing ring.
In a kind of above-mentioned deep well pump in the attachment structure of motor shaft, pass through footpath between described water inlet joint and seal receptacle
It is fixedly connected with to some nuts worn.
In a kind of above-mentioned deep well pump in the attachment structure of motor shaft, some groups of impellers are connected with described pump shaft.
Compared with prior art, this deep well pump replaces traditional shaft coupling by the mutual cooperation of connecting key and groove with this
Device makes it have the advantages of production cost is lower and later period maintenance facilitates.
Brief description of the drawings
Fig. 1 is the partial sectional view of this deep well pump.
In figure, 1, motor shaft；2nd, pump shaft；3rd, water inlet joint；4th, seal receptacle；5th, connecting key；6th, bearing；7th, mechanical seal；8、
Sealing ring；9th, nut；10th, impeller.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in figure 1, in this deep well pump motor shaft attachment structure, including motor shaft 1, pump shaft 2, water inlet joint 3 and with entering
The seal receptacle 4 that water section 3 is connected, one end of motor shaft 1 are located in water inlet joint 3 through seal receptacle 4 and are connected with pump shaft 2, electricity
The end set of arbor 1 has the connecting key 5 of rectangular parallelepiped structure, is integral type structure between connecting key 5 and motor shaft 1, pump shaft 2
End inwardly offers and groove is engaged with connector, coordinates between connecting key 5 and groove for gap, motor shaft 1 and seal receptacle 4
Between be provided with two bearings 6.
Further describe in detail, motor is damaged in order to prevent liquid from entering motor internal, positioned at the top of bearing 6 in seal receptacle 4
Mechanical seal 7 is provided with, in order to further strengthen the sealing property of the pump housing, the top of mechanical seal 7 is provided with sealing ring 8.
Wherein, it is fixedly connected with by some nuts 9 radially worn between water inlet joint 3 and seal receptacle 4, is connected with pump shaft 2
Some groups of impellers 10.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although motor shaft 1, pump shaft 2, water inlet joint 3, seal receptacle 4, connecting key 5, bearing 6, machinery have more been used herein
The terms such as sealing 7, sealing ring 8, nut 9, impeller 10, but it is not precluded from the possibility using other terms.Use these terms
Just for the sake of more easily describing and explaining essence of the present utility model；It is construed as any additional limitation all
Disagreed with the utility model spirit.
Claims (5)
1. the attachment structure of motor shaft in a kind of deep well pump, including motor shaft（1）, pump shaft（2）, water inlet joint（3）With with water inlet joint
（3）The seal receptacle being connected（4）, the motor shaft（1）One end pass through seal receptacle（4）Positioned at water inlet joint（3）Interior and and pump shaft
（2）It is connected, it is characterised in that the motor shaft（1）End set have the connecting key of rectangular parallelepiped structure（5）, and it is described
Connecting key（5）With motor shaft（1）Between be integral type structure, the pump shaft（2）End inwardly offer and connector match
Close groove, the connecting key（5）Coordinate between groove for gap, described motor shaft（1）With seal receptacle（4）Between be provided with
Two bearings（6）.
2. the attachment structure of motor shaft in a kind of deep well pump according to claim 1, it is characterised in that described seal receptacle
（4）It is interior to be located at bearing（6）Top is provided with mechanical seal（7）.
3. the attachment structure of motor shaft in a kind of deep well pump according to claim 2, it is characterised in that the mechanical seal
（7）Top be provided with sealing ring（8）.
4. the attachment structure of motor shaft in a kind of deep well pump according to claim 1, it is characterised in that described water inlet joint
（3）With seal receptacle（4）Between pass through some nuts for radially wearing（9）It is fixedly connected with.
5. the attachment structure of motor shaft in a kind of deep well pump according to claim 1, it is characterised in that described pump shaft
（2）On be connected with some groups of impellers（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720661382.1U CN206845523U (en) | 2017-06-08 | 2017-06-08 | The attachment structure of motor shaft in a kind of deep well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720661382.1U CN206845523U (en) | 2017-06-08 | 2017-06-08 | The attachment structure of motor shaft in a kind of deep well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206845523U true CN206845523U (en) | 2018-01-05 |
Family
ID=60799281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720661382.1U Expired - Fee Related CN206845523U (en) | 2017-06-08 | 2017-06-08 | The attachment structure of motor shaft in a kind of deep well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206845523U (en) |
-
2017
- 2017-06-08 CN CN201720661382.1U patent/CN206845523U/en not_active Expired - Fee Related
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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: 20180105 Termination date: 20200608 |