CN210265168U - Shaftless pipeline pump - Google Patents
Shaftless pipeline pump Download PDFInfo
- Publication number
- CN210265168U CN210265168U CN201921257963.4U CN201921257963U CN210265168U CN 210265168 U CN210265168 U CN 210265168U CN 201921257963 U CN201921257963 U CN 201921257963U CN 210265168 U CN210265168 U CN 210265168U
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- stator
- impeller
- end cover
- shaftless
- sleeve
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Abstract
The utility model discloses a shaftless pipeline pump, which comprises an outer barrel, wherein a first end cover and a second end cover are respectively arranged at the two ends of the outer barrel, and a water inlet and a water outlet are respectively arranged on the first end cover and the second end cover; be provided with the stator seat in the urceolus, install the stator on the stator seat, the stator outside is provided with the rotor, and the water inlet is connected with the stator seat, and stator seat inside has the water passageway with the water inlet intercommunication, and rotor end connection has first impeller, and first impeller outside is provided with first stator, and this first stator mid-mounting has first axle sleeve, and first impeller is connected with the transmission shaft of installing in first axle sleeve. The shaftless pipeline pump structure cancels a motor shaft, greatly simplifies the product structure, and is beneficial to reducing the product volume and the production cost. In addition, the motor is self-cooled through water flow, the service life of the shaft sleeve is prolonged due to the cooling effect of cooling water, the motor efficiency is improved, and the noise of the motor is reduced by 3-5% compared with that of a common pipeline pump.
Description
Technical Field
The utility model relates to a water pump, especially a pipeline pump.
Background
With the progress of the urbanization of houses and the improvement of the living standard of rural areas, the demand of water supply equipment of buildings is continuously rising. In recent years, water supply equipment has undergone a development process from variable-frequency constant-pressure water supply of a single or combination of multiple centrifugal pumps to variable-frequency constant-pressure water supply of a pump in a pipe and a unit. The pipeline pump has better silencing characteristic than a centrifugal pump, so the pipeline pump is widely applied. The common pipeline pump comprises an outer barrel, an impeller assembly and a motor are arranged in the outer barrel, the motor is connected with the impeller assembly through a motor shaft, the installation structure of the pipeline pump is complex, the product size is large, the working noise is large, and the production cost is high.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a pipeline pump to simplify the product structure, reduce the product volume, reduce product noise and product manufacturing cost.
In order to solve the technical problem, the shaftless pipeline pump of the utility model comprises an outer cylinder, wherein a first end cover and a second end cover are respectively arranged at two ends of the outer cylinder, and a water inlet and a water outlet are respectively arranged on the first end cover and the second end cover; be provided with the stator seat in the urceolus, install the stator on the stator seat, the stator outside is provided with the rotor, the water inlet is connected with the stator seat, and stator seat inside has the water passageway with the water inlet intercommunication, rotor end connection has first impeller, and first impeller outside is provided with first stator, and this first stator mid-mounting has first axle sleeve, first impeller is connected with the transmission shaft of installing in first axle sleeve.
The transmission shaft is fixed with a second impeller, a second guide vane is arranged outside the second impeller, the middle of the second guide vane is provided with a second shaft sleeve for the transmission shaft to pass through, and the two impeller structures which are parallel are adopted, so that the working efficiency of the water pump can be obviously improved.
The two ends of the transmission shaft are respectively provided with a first fixed sleeve and a second fixed sleeve which are used for positioning the first impeller, the first shaft sleeve, the second impeller and the second shaft sleeve, and the two ends of the transmission shaft are respectively provided with a first nut and a second nut which are used for tightly pressing the first fixed sleeve and the second fixed sleeve. The structure simplifies the mounting mode of the two impellers, and makes the product mounting and maintenance easier.
And a plurality of bolts are connected between the first end cover and the second end cover in a penetrating manner, and fixing nuts for tightly pressing the first end cover, the second end cover and the outer barrel are arranged at the end parts of the bolts. Adopt bolt and fixation nut cooperation to compress tightly first end cover, second end cover and urceolus fixed, compare unilateral end cover adoption screw fixation's mode in the tradition, simplified product installation operation, improved assembly efficiency, need not to process the screw hole that is used for the end cover installation moreover on the urceolus, be favorable to reduction in production cost.
The outer barrel is provided with arc bearing parts at two ends respectively, sealing rings are arranged in the arc bearing parts, and the sealing effect of the pipeline pump is improved through the matching of the sealing rings and the two end covers.
The stator seat tip has the heavy chamber, installs drive circuit board in this heavy chamber, drive circuit board coats and is stamped sealed glue, makes product structure compacter, water-proof effects better.
The utility model has the advantages that: in the shaftless pipeline pump structure, the end part of the rotor is directly connected with the first impeller, the first impeller and the rotor are positioned by the first shaft sleeve and the transmission shaft, a motor shaft is omitted, the product structure is greatly simplified, and the reduction of the product volume and the reduction of the production cost are facilitated. In addition, the stator seat is internally provided with a water channel communicated with the water inlet, water flows pass through the stator seat from the inside of the stator seat, the self-cooling of the motor through the water flows is realized, the working environment of the shaft sleeve is improved due to the cooling effect of cooling water, the service life of the shaft sleeve is prolonged, and the improvement of the efficiency of the motor is facilitated. Therefore, a fan at the end part of the motor can be omitted, the noise of the product is lower than that of a common pipeline pump by 3-5%, and the product is suitable for conveying clean water or other liquids with physical and chemical properties similar to that of the clean water.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic sectional structure diagram of the present invention.
Detailed Description
Referring to fig. 1 and 2, the shaftless pipeline pump of the present invention comprises an outer cylinder 1, wherein a first end cap 2 and a second end cap 3 are respectively installed at two ends of the outer cylinder 1, and a water inlet 4 and a water outlet 5 are respectively arranged on the first end cap 2 and the second end cap 3; be provided with stator seat 6 in the urceolus 1, install stator 7 on the stator seat 6, stator 7 outside is provided with rotor 8, and water inlet 4 is connected with stator seat 6, and stator seat 6 is inside to have the water passageway 61 with water inlet 4 intercommunication, and 8 end connection of rotor have first impeller 9, and first impeller 9 outside is provided with first stator 10, and this first stator 10 mid-mounting has first axle sleeve 11, and first impeller 9 is connected with the transmission shaft 12 of installing in first axle sleeve 11.
In the embodiment, a second impeller 13 is fixed on the transmission shaft 12, a second guide vane 14 is arranged outside the second impeller 13, and a second shaft sleeve 15 through which the transmission shaft 12 passes is installed in the middle of the second guide vane 13. The two ends of the transmission shaft 12 are respectively provided with a first fixing sleeve 16 and a second fixing sleeve 17 for positioning the first impeller 10, the first shaft sleeve 11, the second impeller 13 and the second shaft sleeve 15, and the two ends of the transmission shaft 12 are respectively provided with a first nut 18 and a second nut 19 for compressing the first fixing sleeve 16 and the second fixing sleeve 17.
A plurality of bolts 20 are connected between the first end cap 2 and the second end cap 3 in a penetrating way, and fixing nuts 21 for pressing the first end cap 2, the second end cap 3 and the outer cylinder 1 are arranged at the end parts of the bolts 20. The two ends of the outer cylinder 1 are respectively provided with an arc-shaped bearing part 22, and a sealing ring 23 is arranged in the arc-shaped bearing part 22. The end of the stator seat 6 is provided with a sinking cavity 62, the driving circuit board 24 is installed in the sinking cavity 62, and the driving circuit board 24 is covered with sealant.
The above is only the preferred embodiment of the present invention, as long as the technical solution of the purpose of the present invention is realized by the substantially same means, all belong to the protection scope of the present invention.
Claims (6)
1. The utility model provides a shaftless pipeline pump, includes the urceolus, its characterized in that: a first end cover and a second end cover are respectively arranged at two ends of the outer barrel, and a water inlet and a water outlet are respectively arranged on the first end cover and the second end cover; be provided with the stator seat in the urceolus, install the stator on the stator seat, the stator outside is provided with the rotor, the water inlet is connected with the stator seat, and stator seat inside has the water passageway with the water inlet intercommunication, rotor end connection has first impeller, and first impeller outside is provided with first stator, and this first stator mid-mounting has first axle sleeve, first impeller is connected with the transmission shaft of installing in first axle sleeve.
2. The shaftless conduit pump of claim 1, wherein: and a second impeller is fixed on the transmission shaft, a second guide vane is arranged outside the second impeller, and a second shaft sleeve for the transmission shaft to pass through is arranged in the middle of the second guide vane.
3. The shaftless conduit pump of claim 2, wherein: the two ends of the transmission shaft are respectively provided with a first fixed sleeve and a second fixed sleeve which are used for positioning the first impeller, the first shaft sleeve, the second impeller and the second shaft sleeve, and the two ends of the transmission shaft are respectively provided with a first nut and a second nut which are used for tightly pressing the first fixed sleeve and the second fixed sleeve.
4. The shaftless conduit pump of claim 2, wherein: and a plurality of bolts are connected between the first end cover and the second end cover in a penetrating manner, and fixing nuts for tightly pressing the first end cover, the second end cover and the outer barrel are arranged at the end parts of the bolts.
5. The shaftless conduit pump of claim 4, wherein: the outer barrel is provided with arc bearing parts at two ends respectively, and a sealing ring is arranged in each arc bearing part.
6. The shaftless conduit pump of claim 2, wherein: the stator seat end part is provided with a sinking cavity, a driving circuit board is installed in the sinking cavity, and the driving circuit board is covered with sealing glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921257963.4U CN210265168U (en) | 2019-08-05 | 2019-08-05 | Shaftless pipeline pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921257963.4U CN210265168U (en) | 2019-08-05 | 2019-08-05 | Shaftless pipeline pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210265168U true CN210265168U (en) | 2020-04-07 |
Family
ID=70015936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921257963.4U Active CN210265168U (en) | 2019-08-05 | 2019-08-05 | Shaftless pipeline pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210265168U (en) |
-
2019
- 2019-08-05 CN CN201921257963.4U patent/CN210265168U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |