CN206495785U - A kind of cantilevered double-runner centrifugal pump - Google Patents
A kind of cantilevered double-runner centrifugal pump Download PDFInfo
- Publication number
- CN206495785U CN206495785U CN201621471009.1U CN201621471009U CN206495785U CN 206495785 U CN206495785 U CN 206495785U CN 201621471009 U CN201621471009 U CN 201621471009U CN 206495785 U CN206495785 U CN 206495785U
- Authority
- CN
- China
- Prior art keywords
- pump
- choma
- bearing
- impeller
- pump housing
- 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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Abstract
The utility model discloses a kind of cantilevered double-runner centrifugal pump, suction casing is located at pump housing left end, impeller is connected to pump shaft left end by impeller nut, impeller is located in the pump housing, pump housing upper end is provided with Spit Section, suction casing, impeller, Spit Section are connected, and the first choma, the second choma are provided between the pump housing and impeller；The choma of the utility model first is connected reliably with the pump housing, it is convenient to be changed when repairing simultaneously, the distance of first choma and the second choma is beneficial to limitation internal leakage, balancing axial carries power, and using cast iron quality, anti-wear performance is excellent, reduce cost, the pump housing is set to dual channel, reduce the radial load of pump shaft so that centrifugal pump smooth running, the utility model is applied to the flow conveying of the industrial circles such as petrochemical industry, electric power, Ferrous Metallurgy, desalinization, environmentally friendly pharmacy.
Description
Technical field
The utility model is related to centrifugation pump technical field, specifically, more particularly to a kind of cantilevered double-runner centrifugal pump.
Background technology
Centrifugal pump is a kind of vane pump, by the impeller of rotation in rotary course, due to the phase interaction of blade and liquid
With mechanical energy is transmitted to liquid by blade, is made the pressure energy of liquid and is increased, and reaches the purpose of conveying liquid.Centrifugal pump is worked
Mechanical hydraulic loss and mechanical loss occur in journey, when hydraulic loss is that fluid flows through impeller, pump case, flow velocity size and Orientation
Change and the presence of inverse pressure gradient cause circulation and vortex, cause energy loss, mechanical loss is high-speed rotation
Impeller and liquid between friction and bearing, axle envelope etc. the loss that causes of mechanical friction.Generally in the pump housing and and impeller
Between choma is set, on the one hand can improve the efficiency of pump, be reduced as far as the backflow of pump, reduce hydraulic loss, the opposing party
Face can conveniently carry out the pump housing, the maintenance of impeller, reduce maintenance cost；But a choma is generally provided only with, and structure ratio
It is simpler.
Utility model content
For above-mentioned deficiency of the prior art, the utility model discloses one kind it is applied widely, operate steadily, repair
Convenient single stage single suction cantilever type centrifugal pump.
The utility model solves the technical scheme that its technical problem used：A kind of cantilevered double-runner centrifugal pump, inhales
Enter section positioned at pump housing left end, impeller is connected to pump shaft left end by impeller nut, and impeller is located in the pump housing, and pump housing upper end is provided with and told
Go out section, suction casing, impeller, Spit Section are connected, pump housing inwall is provided with toroidal cavity, and toroidal cavity left end is provided with connection
Projection, toroidal cavity right-hand member is provided with annular fixing groove, and its interface shape is L-shaped, and the first choma is annular, the first choma
Left end is provided with connecting groove, and connection projection is located in connecting groove, and connection projection is interference fit, the first choma with connecting groove
Right-hand member is provided with annular fixing groove, and the first choma is located in the toroidal cavity on pump housing inwall, the first choma and pump housing inwall
By junction of the edges of two sheets of paper screw second consolidation, junction of the edges of two sheets of paper screw is located in annular fixing groove, and the second choma is connected by junction of the edges of two sheets of paper screw and impeller
Connect, the distance of the first choma and the second choma is 0.4-0.9mm, and the pump housing is fixed with pump cover by screw, intermediate support and pump cover
Have in connection, intermediate support and mechanical sealing assembly is provided with cavity, cavity, dash is provided between mechanical sealing assembly and impeller
Circle, mechanical sealing assembly includes axle sleeve, mechanical seal, machine sealed cover, and axle sleeve is socketed on pump shaft, and pump cover and machine sealed cover are by machine
Tool is sealingly fastened on the outside of axle sleeve, and pump cover is fixedly connected with machine sealed cover by screw, and bearing housing is connected with intermediate support, axle
The inside for holding casing is provided with grease chamber, and bearing housing one end is provided with oil inlet, and the other end is provided with oil-out, and the surface of bearing housing is provided with
It is provided with permanent position lubricating cup, the opening of bearing housing left end at journal bearing, the opening of bearing housing right-hand member and is provided with thrust bearing, only
Thrust bearing is socketed on pump shaft, and round nut is provided with the right side of thrust bearing, and bearing bonnet is located on the right side of thrust bearing, bearing bonnet with
Bearing housing is fixedly connected.
It is provided with the journal bearing in cylinder roller bearing, thrust bearing provided with a pair of angular contact ball bearings.
The pump housing is set to dual channel.
The utility model has beneficial effect, and the choma of the utility model first is connected reliably with the pump housing, while during maintenance more
Change conveniently, the distance of the first choma and the second choma is beneficial to limitation internal leakage, and balancing axial carries power, resistance to using cast iron quality
Grind excellent performance, reduce cost, the pump housing is set to dual channel, reduces the radial load of pump shaft so that centrifugal pump smooth running,
The utility model is applied to the flow conveying of the industrial circles such as petrochemical industry, electric power, Ferrous Metallurgy, desalinization, environmentally friendly pharmacy.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is enlarged drawing at A in the utility model Fig. 1；
In figure：1- suction casings, the 2- pump housings, 3- impeller nuts, 4- impellers, 5- Spit Sections, 6- pump covers, 7- axle sleeves, 8- machineries
Sealing, 9- intermediate supports, 10- machine sealed covers, 11- bearing housings, 12- oil inlets, 13- perseverances position lubricating cup, 14- oil-outs, 15- stops
Thrust bearing, 16- journal bearings, 17- round nuts, 18- bearing bonnets, the chomas of 19- first, the chomas of 20- second, 21- junction of the edges of two sheets of paper screws,
22- connection projections, 23- retaining rings, 24- pump shafts.
Embodiment
The utility model is described in further detail presently in connection with accompanying drawing.These accompanying drawings are simplified schematic diagram,
Only illustrate basic structure of the present utility model in a schematic way, therefore it only shows the composition relevant with the utility model.
As illustrated, a kind of cantilevered double-runner centrifugal pump, suction casing is located at pump housing left end, impeller is connected by impeller nut
Pump shaft left end is connected on, impeller is located in the pump housing, and pump housing upper end is provided with Spit Section, and suction casing, impeller, Spit Section are connected, the pump housing
Inwall is provided with toroidal cavity, and toroidal cavity left end is fixed provided with connection projection, toroidal cavity right-hand member provided with annular
Groove, its interface shape is L-shaped, and the first choma is annular, and the first choma left end is provided with connecting groove, and connection projection is located at connection
In groove, connection projection is interference fit with connecting groove, and the first choma right-hand member is provided with annular fixing groove, and the first choma is located at
In toroidal cavity on pump housing inwall, the first choma is with pump housing inwall by junction of the edges of two sheets of paper screw second consolidation, and junction of the edges of two sheets of paper screw is located at
In annular fixing groove, the second choma is connected by junction of the edges of two sheets of paper screw with impeller, and the distance of the first choma and the second choma is 0.4-
0.9mm, the pump housing is fixed with pump cover by screw, and intermediate support is connected with pump cover, has in intermediate support and machine is provided with cavity, cavity
Tool seal assembly, is provided with retaining ring between mechanical sealing assembly and impeller, mechanical sealing assembly includes axle sleeve, mechanical seal, machine
Sealed cover, axle sleeve is socketed on pump shaft, and mechanical seal is fixed on the outside of axle sleeve by pump cover with machine sealed cover, pump cover and machine sealed cover
It is fixedly connected by screw, bearing housing is connected with intermediate support, the inside of bearing housing is provided with grease chamber, and bearing housing one end is provided with
Oil inlet, the other end is provided with oil-out, and the surface of bearing housing, which is provided with permanent position lubricating cup, the opening of bearing housing left end, is provided with footpath
To bearing, thrust bearing is provided with the opening of bearing housing right-hand member, thrust bearing is socketed on pump shaft, is provided with the right side of thrust bearing
Round nut, bearing bonnet is located on the right side of thrust bearing, and bearing bonnet is fixedly connected with bearing housing.
It is provided with the journal bearing in cylinder roller bearing, thrust bearing provided with a pair of angular contact ball bearings.
First choma, the second choma use cast iron quality.
The pump housing is set to dual channel, and dual channel can effectively balance most of radial load, can effectively reduce axle
Amount of deflection.
The utility model preferred embodiment is explained in detail above in conjunction with accompanying drawing, but the utility model is not limited to
Above-mentioned embodiment, in the knowledge that those of ordinary skill in the art possess, can also not depart from the utility model
Made a variety of changes on the premise of objective.
Many other changes and remodeling can be made by not departing from spirit and scope of the present utility model.It should be appreciated that this reality
Specific embodiment is not limited to new, scope of the present utility model is defined by the following claims.
Claims (3)
1. a kind of cantilevered double-runner centrifugal pump, it is characterised in that suction casing is located at pump housing left end, impeller is connected by impeller nut
Pump shaft left end is connected on, impeller is located in the pump housing, and pump housing upper end is provided with Spit Section, and suction casing, impeller, Spit Section are connected, the pump housing
Inwall is provided with toroidal cavity, and toroidal cavity left end is fixed provided with connection projection, toroidal cavity right-hand member provided with annular
Groove, its interface shape is L-shaped, and the first choma is annular, and the first choma left end is provided with connecting groove, and connection projection is located at connection
In groove, connection projection is interference fit with connecting groove, and the first choma right-hand member is provided with annular fixing groove, and the first choma is located at
In toroidal cavity on pump housing inwall, the first choma is with pump housing inwall by junction of the edges of two sheets of paper screw second consolidation, and junction of the edges of two sheets of paper screw is located at
In annular fixing groove, the second choma is connected by junction of the edges of two sheets of paper screw with impeller, and the distance of the first choma and the second choma is 0.4-
0.9mm, the pump housing is fixed with pump cover by screw, and intermediate support is connected with pump cover, has in intermediate support and machine is provided with cavity, cavity
Tool seal assembly, is provided with retaining ring between mechanical sealing assembly and impeller, mechanical sealing assembly includes axle sleeve, mechanical seal, machine
Sealed cover, axle sleeve is socketed on pump shaft, and mechanical seal is fixed on the outside of axle sleeve by pump cover with machine sealed cover, pump cover and machine sealed cover
It is fixedly connected by screw, bearing housing is connected with intermediate support, the inside of bearing housing is provided with grease chamber, and bearing housing one end is provided with
Oil inlet, the other end is provided with oil-out, and the surface of bearing housing, which is provided with permanent position lubricating cup, the opening of bearing housing left end, is provided with footpath
To bearing, thrust bearing is provided with the opening of bearing housing right-hand member, thrust bearing is socketed on pump shaft, is provided with the right side of thrust bearing
Round nut, bearing bonnet is located on the right side of thrust bearing, and bearing bonnet is fixedly connected with bearing housing.
2. a kind of cantilevered double-runner centrifugal pump as claimed in claim 1, it is characterised in that provided with circle in the journal bearing
Provided with a pair of angular contact ball bearings in post roller bearing, thrust bearing.
3. a kind of cantilevered double-runner centrifugal pump as claimed in claim 1, it is characterised in that the pump housing is set to double fluid
Road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621471009.1U CN206495785U (en) | 2016-12-29 | 2016-12-29 | A kind of cantilevered double-runner centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621471009.1U CN206495785U (en) | 2016-12-29 | 2016-12-29 | A kind of cantilevered double-runner centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206495785U true CN206495785U (en) | 2017-09-15 |
Family
ID=59802687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621471009.1U Expired - Fee Related CN206495785U (en) | 2016-12-29 | 2016-12-29 | A kind of cantilevered double-runner centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206495785U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762674A (en) * | 2016-12-29 | 2017-05-31 | 镇江福泰克流体技术有限公司 | A kind of cantilevered double-runner centrifugal pump |
| CN109185217A (en) * | 2018-11-28 | 2019-01-11 | 无锡艾比德泵业有限公司 | A kind of suction inlet is the water inlet segment structure of the centrifugal multistage pump multiple centrifugal pump of fish mouth type |
-
2016
- 2016-12-29 CN CN201621471009.1U patent/CN206495785U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762674A (en) * | 2016-12-29 | 2017-05-31 | 镇江福泰克流体技术有限公司 | A kind of cantilevered double-runner centrifugal pump |
| CN109185217A (en) * | 2018-11-28 | 2019-01-11 | 无锡艾比德泵业有限公司 | A kind of suction inlet is the water inlet segment structure of the centrifugal multistage pump multiple centrifugal pump of fish mouth type |
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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 |
Granted publication date: 20170915 Termination date: 20171229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |