CN109926805A - A kind of combined type mixed flow water pump model impeller manufacturing method - Google Patents
A kind of combined type mixed flow water pump model impeller manufacturing method Download PDFInfo
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- CN109926805A CN109926805A CN201910279677.6A CN201910279677A CN109926805A CN 109926805 A CN109926805 A CN 109926805A CN 201910279677 A CN201910279677 A CN 201910279677A CN 109926805 A CN109926805 A CN 109926805A
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- groove
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Abstract
The invention discloses a kind of combined type mixed flow water pump model impeller manufacturing methods, and described method includes following steps: 1) unitary design of square key (2) is carried out to blade (1)；2) groove (4) design is carried out to back shroud (3)；3) screwhole position is arranged in groove (4)；4) screw hole is arranged on front shroud (5)；5) blade (1) and back shroud (3) and front shroud (5) are assembled using screw.The present invention have the following structure it is ingenious in design, using advantage reliable, low in cost, efficiently impeller can be disassembled and installed using it, the cutting of the carrying and cutting equipment of blade to blade outlet is facilitated, experimental period is shortened, has saved experimentation cost.
Description
Technical field
The present invention relates to a kind of model impeller manufacturing method, especially a kind of combined type mixed flow water pump model impeller manufacturer
Method.
Background technique
Currently, lift can be generally designed higher than real work lift when developing design by mixed flow pump,
This is done to guarantee after the completion of manufacturing and designing, when doing model test, its lift can reach design there are certain surplus
Lift demand, even if beyond the method for lift can also be reduced by cut-off blade outlet edge to meet the requirements.Existing group
Box-like mixed flow water pump model, when being designed manufacture, blade and front shroud, back shroud are both designed as an entirety, regard
After complete experiment, when discovery water pump model surplus is too big, just water pump must integrally be carried out being transported at cutting equipment
The cutting of waterside does so since the weight of water pump model is larger and not only carries extremely inconvenience, and there are certain danger
Property, meanwhile, experimental period is extended, so that experimental cost is higher.
Summary of the invention
It is an object of the invention to provide a kind of combined type mixed flow water pump model impeller manufacturing methods that can be easy to disassemble.
It is realized the purpose of the present invention is technical solution in this way, a kind of combined type mixed flow water pump model impeller manufacture
Method, described method includes following steps: 1) unitary design of square key is carried out to blade；2) groove is carried out to back shroud to set
Meter；3) screwhole position is arranged in groove；4) screw hole is arranged on front shroud；5) utilize screw by blade and back shroud and front cover
Plate is assembled.
Wherein, the step 1) designs in accordance with the following steps:
1) it is designed to intermediate rectangular, key head circular, side at vertical guide, upper surface and lower end surface at cover board stream interface square key
Three-dimensional square key, wherein
High h >=the 10mm of key；Key is wide；
Key head portion carries out R1, R2 chamfered；
Dimensional tolerance is h7；
A is blade upper end face thickness；
B is blade end upper thread to the square key side shortest distance, and b=amax；
amaxFor blade upper surface maximum gauge；
2) it is modeled, carries out machining prgraming using NX7.5, processed using three shaft three-linkage numerical control milling machines, square key surface
Roughness is Ra≤0.8.
Wherein, the step 2 designs in accordance with the following steps:Groove is arranged to and the matched space shape in square key end face
Shape；Wherein, groove design is the sky that intermediate square groove, slot head circular, slot side change at vertical guide, bottom surface with square key upper surface
Between shape,
The high h ' of slot=h；Groove width s '=s；
Trough portion carries out R1 '=R1, R2 '=R2 chamfered；
Dimensional tolerance is H7；
It is modeled, carries out machining prgraming using NX7.5, processed using three shaft three-linkage numerical control milling machines, in back shroud
Stream interface processes four grooves；Square key surface roughness is Ra≤0.8.
Wherein, in the step 3), uniform vertical arranges screw hole, each groove cloth in each groove on back shroud
Set 5~7 screw holes
By adopting the above-described technical solution, the present invention have the following structure it is ingenious in design, using reliable, low-cost excellent
Point can efficiently disassemble and install impeller using it, and the carrying and cutting equipment for facilitating blade go out blade
The cutting of waterside, shortens experimental period, has saved experimentation cost.
Detailed description of the invention
Detailed description of the invention of the invention is as follows:
Fig. 1 is blade construction schematic diagram of the invention；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is rear cover plate structure schematic diagram of the invention；
Fig. 4 is assembling structure schematic diagram of the invention.
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing, but the present invention does not limit to
In these embodiments, any improvement or substitution on the present embodiment essence spirit still falls within the claims in the present invention and is wanted
Seek the range of protection.
Embodiment 1: as shown in Figure 1,2,3, 4, a kind of combined type mixed flow water pump model impeller manufacturing method the method packet
It includes following steps: 1) carrying out the unitary design of square key 2 to blade 1；2) groove 4 is carried out to back shroud 3 to design；3) in groove 4
Interior arrangement screwhole position；4) screw hole is arranged on front shroud 5；5) blade 1 and back shroud 3 and front shroud 5 are carried out using screw
Assembly.
Wherein, the step 1) designs in accordance with the following steps:
1) it is designed to intermediate rectangular, key head circular, side at vertical guide, upper surface and lower end surface at cover board stream interface square key 2
Three-dimensional square key, wherein
High h >=the 10mm of key；Key is wide；
Key head portion carries out R1、R2Chamfered；
Dimensional tolerance is h7；
A is blade upper end face thickness；
B is blade end upper thread to the square key side shortest distance, and b=amax；
amaxFor blade upper surface maximum gauge；
2) it is modeled, carries out machining prgraming using NX7.5, processed using three shaft three-linkage numerical control milling machines, square key surface
Roughness is Ra≤0.8.
Wherein, the step 2 designs in accordance with the following steps:Groove 4 is arranged to and the matched space in 2 end face of square key
Shape；Wherein, groove (4) is designed as intermediate square groove, slot head circular, slot side into vertical guide, bottom surface with the change of square key upper surface
The spatial form of change,
The high h ' of slot=h；Groove width s '=s；
Trough portion carries out R1 '=R1, R2 '=R2 chamfered；
Dimensional tolerance is H7；
It is modeled, carries out machining prgraming using NX7.5, processed using three shaft three-linkage numerical control milling machines, in back shroud
3 stream interfaces process four grooves 4；Square key surface roughness is Ra≤0.8.
Wherein, in the step 3), uniform vertical arranges screw hole, each groove in each groove 4 on back shroud 3
4 5~7 screw holes of arrangement
The present invention is passed through the design of groove and square key and is connect blade with front shroud 5 and back shroud 3 using screw 6, can
Easily make three more convenient during assembly or disassembly, shortens experimental period, improve work efficiency.
Claims (4)
1. a kind of combined type mixed flow water pump model impeller manufacturing method, characterized in that described method includes following steps: 1) to leaf
Piece (1) carries out the unitary design of square key (2)；2) groove (4) design is carried out to back shroud (3)；3) spiral shell is arranged in groove (4)
Hole site；4) screw hole is arranged on front shroud (5)；5) using screw (6) by blade (1) and back shroud (3) and front shroud (5) into
Luggage is matched.
2. combined type mixed flow water pump model impeller manufacturing method as described in claim 1, characterized in that the step 1) according to
Following steps design:
1) it is designed to intermediate rectangular, key head circular, side at vertical guide, upper surface and lower end surface at cover board stream square key (2)
The three-dimensional square key in face, wherein
High h >=the 10mm of key；Key is wide；
Key head portion carries out R1, R2 chamfered；
Dimensional tolerance is h7；
A is blade upper end face thickness；
B is blade end upper thread to the square key side shortest distance, and b=amax；
amaxFor blade upper surface maximum gauge；
2) it is modeled, carries out machining prgraming using NX7.5, processed using three shaft three-linkage numerical control milling machines, square key (2) table
Surface roughness is Ra≤0.8.
3. combined type mixed flow water pump model impeller manufacturing method as claimed in claim 2, it is characterized in that: the step 2 according to
Following steps design:Groove (4) is arranged to and the matched spatial form in square key (2) end face；Wherein, groove (4) is designed as
The spatial form that intermediate square groove, slot head circular, slot side change at vertical guide, bottom surface with square key upper surface,
The high h ' of slot=h；Groove width s '=s；
Trough portion carries out R1 '=R1, R2 '=R2 chamfered；
Dimensional tolerance is H7；
It is modeled, carries out machining prgraming using NX7.5, processed using three shaft three-linkage numerical control milling machines, in back shroud
(3) stream interface processes four grooves (4)；Square key surface roughness is Ra≤0.8.
4. combined type mixed flow water pump model impeller manufacturing method as claimed in claim 3, it is characterized in that: in the step 3)
In, the interior uniform vertical of each groove (4) on back shroud (3) arranges screw hole, and each groove (4) arranges 5~7 screw holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910279677.6A CN109926805A (en) | 2019-04-09 | 2019-04-09 | A kind of combined type mixed flow water pump model impeller manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910279677.6A CN109926805A (en) | 2019-04-09 | 2019-04-09 | A kind of combined type mixed flow water pump model impeller manufacturing method |
Publications (1)
| Publication Number | Publication Date |
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| CN109926805A true CN109926805A (en) | 2019-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910279677.6A Pending CN109926805A (en) | 2019-04-09 | 2019-04-09 | A kind of combined type mixed flow water pump model impeller manufacturing method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1798905A (en) * | 2003-06-18 | 2006-07-05 | 西门子公司 | Blade and gas turbine |
| CN101627212A (en) * | 2007-03-06 | 2010-01-13 | 泰克西斯先进技术及体系有限公司 | Fan blade connection |
| CN102678188A (en) * | 2011-03-16 | 2012-09-19 | 通用电气公司 | Turbine blade |
| CN104603451A (en) * | 2012-09-07 | 2015-05-06 | 戴纳维科公司 | Runner device for hydraulic fluid flow machine |
| CN105927451A (en) * | 2016-06-06 | 2016-09-07 | 哈尔滨电机厂有限责任公司 | Trapezoid groove mosaic structure for blades and upper canopy of water turbine model runner |
| CN109139333A (en) * | 2018-09-29 | 2019-01-04 | 东方电气集团东方电机有限公司 | A kind of split-type hydraulic turbine model runner and its manufacturing method with rounded structure |
-
2019
- 2019-04-09 CN CN201910279677.6A patent/CN109926805A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1798905A (en) * | 2003-06-18 | 2006-07-05 | 西门子公司 | Blade and gas turbine |
| CN101627212A (en) * | 2007-03-06 | 2010-01-13 | 泰克西斯先进技术及体系有限公司 | Fan blade connection |
| CN102678188A (en) * | 2011-03-16 | 2012-09-19 | 通用电气公司 | Turbine blade |
| CN104603451A (en) * | 2012-09-07 | 2015-05-06 | 戴纳维科公司 | Runner device for hydraulic fluid flow machine |
| CN105927451A (en) * | 2016-06-06 | 2016-09-07 | 哈尔滨电机厂有限责任公司 | Trapezoid groove mosaic structure for blades and upper canopy of water turbine model runner |
| CN109139333A (en) * | 2018-09-29 | 2019-01-04 | 东方电气集团东方电机有限公司 | A kind of split-type hydraulic turbine model runner and its manufacturing method with rounded structure |
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Application publication date: 20190625 |
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