CN208900414U - A kind of centrifugal pump impeller - Google Patents
A kind of centrifugal pump impeller Download PDFInfo
- Publication number
- CN208900414U CN208900414U CN201821483679.4U CN201821483679U CN208900414U CN 208900414 U CN208900414 U CN 208900414U CN 201821483679 U CN201821483679 U CN 201821483679U CN 208900414 U CN208900414 U CN 208900414U
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- China
- Prior art keywords
- water conservancy
- conservancy diversion
- guide vane
- diversion leaf
- leaf
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Abstract
The utility model discloses a kind of centrifugal pump impellers, including shell and guiding device, shell and guiding device coaxially assemble, shell is made of plastic-steel outer tube and water conservancy diversion leaf pressing plate, guiding device is made of water conservancy diversion leaf and impeller, first guide vane is opposite with the direction of rotation of the second guide vane, in impeller rotation, by liquid stream from the second guide vane that fluid channel is transported to water conservancy diversion leaf, due to the reaction force of the second guide vane of liquid flow impact generation after liquid stream is got on the second guide vane, liquid stream impacts the first guide vane via diversion cavity, in the reaction force of the second guide vane impact before counteracting, flow out liquid stream from the outlet of water conservancy diversion leaf, during entire fluid flow, due to using 51 degree of rotation angle of helical blade and 60 degree of rotation angle of the first guide vane and 60 degree of rotation angle of the second water conservancy diversion leaf Piece keeps a kind of structure of centrifugal pump impeller described in the utility model more stable.
Description
Technical field
The utility model relates to centrifugal pump impeller field more particularly to a kind of centrifugal pump impellers.
Background technique
Centrifugal pump type water pump vane mainly has following 4 kinds of forms, enclosed, preceding semi-open type, rear semi-open type, open type these four,
Double shrouded wheel is by blade and front/rear cover board group at double shrouded wheel is applied at most in centrifugal pump, is suitable for conveying clear water, solution
The equal lesser cleaning liquid without particle of viscositys, but common impeller is easily led to impact and is generated cavitation erosion due to structural instability
Phenomenon now needs a kind of impeller of stable structure to prevent the generation of such phenomenon.
Utility model content
Purpose of the utility model is to solve the above problem, a kind of centrifugal pump impeller of design, including shell and lead
Device is flowed, the shell is made of plastic-steel outer tube and water conservancy diversion leaf pressing plate, and the water conservancy diversion leaf pressing plate is provided centrally with oil outlet；
The guiding device is made of water conservancy diversion leaf and impeller, and the impeller is provided centrally with supported hole, the water conservancy diversion leaf
Be provided centrally with mounting hole, equipped with the first guide vane and the second guide vane that direction of rotation is opposite in the water conservancy diversion leaf,
The shell and the guiding device coaxially assemble.
The supported hole will be packed into the main shaft of centrifugal pump in practical application, and centrifugal pump main shaft passes through shaft coupling and motor again
Main shaft is connected, and the support hole end surface of impeller is also equipped with the reinforcing sleeve that material is 304 steel, and the toughness of 304 steel is preferable, plays in impeller
The supported hole of impeller is mutually hit with centrifugal pump main shaft when rotation, the effect for preventing supported hole broken.
The Upper portion of the water conservancy diversion leaf shell, first guide vane starting point is arranged in first guide vane
For mounting hole, first guide vane end is the upper casing edge of water conservancy diversion leaf shell, and second guide vane is arranged in institute
State the end face part of water conservancy diversion leaf shell, the rotation angle of second guide vane and the rotation angle direction of the first guide vane
On the contrary, and second guide vane starting point and end on the end face of the water conservancy diversion leaf shell, along the water conservancy diversion leaf
Outer ring circumference radial distribution, the number of first guide vane and the second guide vane is 6, each adjacent two institute
Stating the rotation angle between the first guide vane is 60 degree, and the rotation angle between the second guide vane described in each adjacent two is
Minus 60 degree, second guide vane is provided with diversion cavity between the first guide vane.
Ladder platform is provided on the water conservancy diversion leaf pressing plate, the water conservancy diversion leaf pressing plate is located at the part glue under the ladder platform
It is fixed in the plastic-steel outer tube, the upper surface of the water conservancy diversion leaf pressing plate is provided with chamfering, and chamfering can be such that water conservancy diversion leaf pressing plate is pumping
More convenient when installation in shell, the lower end surface of the water conservancy diversion leaf pressing plate is provided with convex block.
The quantity of the convex block is three, and three convex blocks are located at three adjacent the first water conservancy diversion leaves
The edge of piece, standoff distance are also just the standoff distances of three the first adjacent guide vanes, three convex blocks and three
Adjacent first guide vane cooperation, is limited to 0 in the freedom degree of circumferencial direction for the water conservancy diversion leaf, because of three convex blocks
Structure circumferentially form triangular structure, therefore three convex blocks can prevent the water conservancy diversion leaf for being packed into shell from turning in impeller
It deflects under the action of frictional force when dynamic.
Helical blade is provided in the impeller, the number of the helical blade is 7, helical-blade described in each adjacent two
Rotation angle between piece is all 51 degree, is provided with fluid channel, the fluid channel between two adjacent helical blades
Height be 3mm, be provided with keyway in the supported hole.
It is provided with water conservancy diversion leaf pressing plate rubber shaft bearing in the oil outlet, is provided with water conservancy diversion leaf rubber axis in the mounting hole
It holds, there are four limited blocks along end face setting for the water conservancy diversion leaf pressing plate rubber shaft bearing, for solid in the oil outlet of water conservancy diversion leaf pressing plate
Fixed, there are four limited blocks along end face setting for the water conservancy diversion leaf rubber shaft bearing, for fixed in the mounting hole of water conservancy diversion leaf.
The beneficial effects of the utility model are, the direction of rotation of the first guide vane and the second guide vane on the contrary,
When impeller rotates, by liquid stream from the second guide vane that fluid channel is transported to water conservancy diversion leaf, the second water conservancy diversion leaf is got in liquid stream
Due to the reaction force that the second guide vane of liquid flow impact generates after on piece, liquid stream rushes the first guide vane via diversion cavity
It hits, in the reaction force of the second guide vane impact before counteracting, flows out liquid stream from the outlet of water conservancy diversion leaf, in entire liquid stream stream
It is negative due to using 51 degree of rotation angle of helical blade and 60 degree of rotation angle of the first guide vane and rotation angle in dynamic process
60 degree of the second guide vane keeps a kind of structure of centrifugal pump impeller described in the utility model more stable, and single-stage lift is high,
And improve efficiency.
Detailed description of the invention
Fig. 1 is a kind of sectional view of centrifugal pump impeller described in the utility model；
Fig. 2 is the sectional view of water conservancy diversion leaf pressing plate described in the utility model；
Fig. 3 is the structure chart of impeller described in the utility model；
Fig. 4 is the sectional view of impeller described in the utility model；
Fig. 5 is the front view of water conservancy diversion leaf described in the utility model；
Fig. 6 is the rearview of water conservancy diversion leaf described in the utility model.
In figure, 1, plastic-steel outer tube；2, water conservancy diversion leaf pressing plate；3, water conservancy diversion leaf；4, impeller；5, oil outlet；6, supported hole；7, it installs
Hole；8, the first guide vane；9, the second guide vane；10, ladder platform；11, chamfering；12, convex block；13, helical blade；14, it flows
Body channel；15, water conservancy diversion leaf pressing plate rubber shaft bearing；16, water conservancy diversion leaf rubber shaft bearing；17, diversion cavity.
Specific embodiment
The utility model is specifically described with reference to the accompanying drawing, as shown in figures 1 to 6, a kind of centrifugal pump impeller, including
Shell and guiding device, the shell are made of plastic-steel outer tube 1 and water conservancy diversion leaf pressing plate 2, the center setting of the water conservancy diversion leaf pressing plate 2
There is oil outlet 5；
The guiding device is made of water conservancy diversion leaf 3 and impeller 4, and the impeller 4 is provided centrally with supported hole 6, described to lead
Stream leaf 3 is provided centrally with mounting hole 7, leads in the water conservancy diversion leaf 3 equipped with opposite the first guide vane 8 and second in direction of rotation
Blade 9 is flowed, the shell and the guiding device coaxially assemble.
The supported hole 6 will be packed into the main shaft of centrifugal pump in practical application, and centrifugal pump main shaft passes through shaft coupling and electricity again
Owner's axis is connected, and 6 end face of supported hole of the impeller 4 is also equipped with the reinforcing sleeve that material is 304 steel, and the toughness of 304 steel is preferable, rises
To when impeller 4 rotates supported hole 6 mutually hit with centrifugal pump main shaft, the effect for preventing supported hole 6 to be crushed.
First guide vane, 8 starting point is mounting hole 7, and 8 end of the first guide vane is 3 shell of water conservancy diversion leaf
The direction of rotation of upper casing edge, the direction of rotation of second guide vane 9 and the first guide vane 8 is on the contrary, and described second
The starting point and end of guide vane 9 are on the end face of 3 shell of water conservancy diversion leaf, along the outer ring circumference of the water conservancy diversion leaf 3
Radial distribution is provided with the first guide vane 8 described in diversion cavity 17 between 9 to the first guide vane of the second guide vane 8
Number with the second guide vane 9 is 6, and the rotation angle between the first guide vane 8 described in each adjacent two is 60 degree,
Rotation angle between second guide vane 9 described in each adjacent two is 60 degree.
Ladder platform 10 is provided on the water conservancy diversion leaf pressing plate 2, the water conservancy diversion leaf pressing plate 2 is located under the ladder platform 10
Part glue is fixed in the plastic-steel outer tube 1, and the upper surface of the water conservancy diversion leaf pressing plate 2 is provided with chamfering 11, the water conservancy diversion leaf pressing plate 2
Lower end surface be provided with convex block 12.
The quantity for stating convex block 12 is three, and three convex blocks 12 are located at three adjacent first water conservancy diversion
The edge of blade 8, three convex blocks 12 and three adjacent first guide vanes 8 cooperate, by the water conservancy diversion leaf 3 in circle
The freedom degree of circumferential direction is limited to 0.
Helical blade 13 is provided in the impeller 4, the number of the helical blade 13 is 7, described in each adjacent two
Rotation angle between helical blade 13 is all 51 degree, is provided with fluid channel 14 between two adjacent helical blades 13,
Keyway is provided in the supported hole 6.
It is provided with water conservancy diversion leaf pressing plate rubber shaft bearing 15 in the oil outlet 5, is provided with water conservancy diversion leaf rubber in the mounting hole 7
Bearing 16, there are four limited blocks along end face setting for the water conservancy diversion leaf pressing plate rubber shaft bearing 15, in the fuel-displaced of water conservancy diversion leaf pressing plate 2
Fixed in hole 5, there are four limited blocks along end face setting for the water conservancy diversion leaf rubber shaft bearing 16, in the mounting hole 7 of water conservancy diversion leaf 3
It is fixed.
When using a kind of centrifugal pump impeller described in the utility model, the rotation of the first guide vane and the second guide vane
Turn contrary, when impeller rotates under the drive for pumping main shaft, is under the influence of centrifugal force transported to liquid stream from fluid channel
On second guide vane of water conservancy diversion leaf, after liquid stream is got on the second guide vane, since the second guide vane of liquid flow impact produces
Raw reaction force, liquid stream enter in diversion cavity under the action of reaction force, and liquid stream reaches the first water conservancy diversion via diversion cavity
On blade, the first guide vane is impacted, the power in direction with the opposite direction when impacting the second guide vane is generated, before counteracting
In the reaction force of the second guide vane impact, the axle center straight line of edge and oil outlet is flat when flowing out liquid stream from the outlet of water conservancy diversion leaf
Capable direction outflow is thrown away after making the steady smooth pressurization of liquid stream.
When repairing a kind of centrifugal pump impeller described in the utility model, first checks for water conservancy diversion leaf pressing plate rubber shaft bearing and lead
Whether the leakproofness of stream leaf rubber shaft bearing complies with standard, and checking whether water conservancy diversion leaf pressing plate comes unglued later leads to sealing leak, finally
Check whether helical blade and the first guide vane of water conservancy diversion leaf and the second guide vane of impeller are damaged, to guarantee that this is practical new
The job stability of device described in type.
Above-mentioned technical proposal only embodies the optimal technical scheme of technical solutions of the utility model, the technology of the art
Personnel embody the principles of the present invention to some variations that some of them part may be made, and belong to the utility model
Protection scope within.
Claims (6)
1. a kind of centrifugal pump impeller, it is characterised in that: including shell and guiding device, the shell is by plastic-steel outer tube (1) and leads
Leaf pressing plate (2) composition is flowed, the water conservancy diversion leaf pressing plate (2) is provided centrally with oil outlet (5)；
The guiding device is made of water conservancy diversion leaf (3) and impeller (4), and the impeller (4) is provided centrally with supported hole (6), institute
Being provided centrally with mounting hole (7) for water conservancy diversion leaf (3) is stated, the first opposite water conservancy diversion leaf of direction of rotation is equipped in the water conservancy diversion leaf (3)
Piece (8) and the second guide vane (9), the shell and the guiding device coaxially assemble.
2. a kind of centrifugal pump impeller according to claim 1, it is characterised in that: the first guide vane (8) setting exists
The Upper portion of water conservancy diversion leaf (3) shell, the first guide vane (8) starting point are mounting hole (7), first water conservancy diversion
Blade (8) end is the upper casing edge of water conservancy diversion leaf (3) shell, and second guide vane (9) is arranged in water conservancy diversion leaf (3) shell
The end face part of body, the rotation angle and the rotation angle direction phase of the first guide vane (8) of second guide vane (9)
Instead, and the starting point of second guide vane (9) and end are on the end face of water conservancy diversion leaf (3) shell, lead along described
The radial distribution of the outer ring circumference of leaf (3) is flowed, second guide vane (9) is led to being provided between the first guide vane (8)
It flows chamber (17).
3. a kind of centrifugal pump impeller according to claim 1, it is characterised in that: be provided on the water conservancy diversion leaf pressing plate (2)
Ladder platform (10), the part glue that the water conservancy diversion leaf pressing plate (2) is located under the ladder platform (10) are fixed in the plastic-steel outer tube (1)
Interior, the upper surface of the water conservancy diversion leaf pressing plate (2) is provided with chamfering (11), and the lower end surface of the water conservancy diversion leaf pressing plate (2) is provided with convex
Block (12).
4. a kind of centrifugal pump impeller according to claim 3, it is characterised in that: the quantity of the convex block (12) is three,
And three convex blocks (12) are located at the edge of three adjacent first guide vanes (8), three convex blocks
(12) first guide vane (8) adjacent with three cooperates, and the freedom degree by the water conservancy diversion leaf (3) in circumferencial direction limits
It is 0.
5. a kind of centrifugal pump impeller according to claim 1, it is characterised in that: be provided with helical-blade in the impeller (4)
Piece (13) is provided with fluid channel (14) between two adjacent helical blades (13), is provided with key in the supported hole (6)
Slot.
6. a kind of centrifugal pump impeller according to claim 1, it is characterised in that: be provided with water conservancy diversion in the oil outlet (5)
Leaf pressing plate rubber shaft bearing (15), the mounting hole (7) is interior to be provided with water conservancy diversion leaf rubber shaft bearing (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821483679.4U CN208900414U (en) | 2018-09-11 | 2018-09-11 | A kind of centrifugal pump impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821483679.4U CN208900414U (en) | 2018-09-11 | 2018-09-11 | A kind of centrifugal pump impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208900414U true CN208900414U (en) | 2019-05-24 |
Family
ID=66571988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821483679.4U Active CN208900414U (en) | 2018-09-11 | 2018-09-11 | A kind of centrifugal pump impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208900414U (en) |
-
2018
- 2018-09-11 CN CN201821483679.4U patent/CN208900414U/en active Active
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