CN109909692A - A kind of water pump twisted blade double shrouded wheel and its processing technology - Google Patents
A kind of water pump twisted blade double shrouded wheel and its processing technology Download PDFInfo
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- CN109909692A CN109909692A CN201910325482.0A CN201910325482A CN109909692A CN 109909692 A CN109909692 A CN 109909692A CN 201910325482 A CN201910325482 A CN 201910325482A CN 109909692 A CN109909692 A CN 109909692A
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Abstract
The invention discloses a kind of water pump twisted blade double shrouded wheel and its processing technologys, water pump twisted blade double shrouded wheel includes: single twisted blade, several single twisted blades are successively spliced to form double shrouded wheel, and each single twisted blade is formed by 5-shaft linkage numerical control lathe entirety Milling Machining;The stitching portion of the single twisted blade of two be disposed adjacent is welded to connect and is formed weld seam, and the quantity of weld seam is identical as the quantity of single twisted blade of double shrouded wheel.The present invention significantly improves precision, surface flatness and the double shrouded wheel weight uniformity coefficient of double shrouded wheel manufacture, the manufacturing cycle that double shrouded wheel has been greatly shortened, solves the problems such as distortion is big, occurs in quantity multiple-blade entirety milling technique difficulty of processing is big, the reliability of structure and hydraulic performance for improving double shrouded wheel simultaneously, reduce the vibration of double shrouded wheel.
Description
Technical field
The present invention relates to impeller of pump manufacturing process technology field, espespecially a kind of water pump twisted blade double shrouded wheel and its processing
Technique.
Background technique
Several water pump vane processing technologys general at present are respectively as follows:
1) traditional mold casting: low-vibration noise, high-efficiency blade generally use the increase number of blade at present, twisted blade is set
Meter method, the impeller of blade space distortion greatly, more than blade quantity is often difficult to realize using traditional mold forging type, and is cast
Make that impeller is at high cost, the production cycle is long, precision is low, rough surface, consistency low by mold Foundry Production impeller precision
Difference is not suitable for impeller and precisely manufactures, more not applicable low-vibration noise high-efficiency vane wheel water pump production;
2) punching press+rivet welding: leaf production and rivet welding are completed through the stamping process on front and rear cover plate, but Sheet Metal Forming Technology is only capable of
The not high prismatic blade processing of curvature is enough completed, the biggish blade processing of spatial warping, and multiple blade rivet welding points are unable to complete
Runner internal resistance is increased, impeller hydraulic performance and vibration performance are affected;
3) 3D printing: metallic impeller 3D printing is completed by 3D printer, this method can be good at guaranteeing product and setting
Being consistent property is counted, the process-cycle is short, but expense is very expensive, and 3D printing metallic impeller technique is not yet market-oriented at present;
4) casting cere detaches: double shrouded wheel higher for performance requirement, often internal structure complexity, leaf curling
Greatly, casting mould is unable to complete casting cere and detaches, and conventional cast technique is caused to be unable to complete;
5) whole miller skill: impeller bodies are machined by entirety miller skill, by by front shroud and blade inlet edge
With trailing edge local welding, double shrouded wheel production is realized, but be directed to the impeller bodies that blade amt is more, leaf curling is big, due to
Spacing is too small between blade, leaf curling is big, and impeller bodies can not be completed by whole miller skill;Secondly as whole milling leaf
For wheel with front shroud by local welding, weld seam is easy cracking by corrosion during impeller long-play, leads to impeller master
Body and front shroud divide, and inside weld seam trailing edge impeller channel, influence impeller hydraulic performance;Due to the impeller bodies of whole milling
After front shroud welding fabrication, there are gaps between front shroud and blade, and there are fluid leakages, reduce impeller hydraulic performance, because
This this method could be improved.
It is higher and higher to the requirement of water pump vane manufacturing process with the raising of pump impeller design level and customer requirement,
The water pump vane that low vibration designs is very high to impeller internal detail, the smooth degree requirement to runner surfaces externally and internally
It is very high, therefore manufacturing process meets design requirement, could completely embody the advantage that low vibration designs, usual low vibration
The usual spatial warping of impeller blade is big, using conventional machining or casting technique processing difficult to realize.Therefore it needs to develop one
Kind new low vibration pump closed impeller manufacturing process, can make metallic impeller structure be consistent with design structure and
Guarantee seam of impeller intensity and reliability, the technique is made to can satisfy the Performance And Reliability requirement of water pump.
Summary of the invention
The object of the present invention is to provide a kind of water pump twisted blade double shrouded wheel and its processing technologys, significantly improve and close
Precision, surface flatness and the double shrouded wheel weight uniformity coefficient of the manufacture of formula impeller, the system that double shrouded wheel has been greatly shortened
It makes the period, solve the problems such as distortion is big, occurs in quantity multiple-blade entirety milling technique difficulty of processing is big, improve simultaneously
The reliability of structure and hydraulic performance of double shrouded wheel, reduce the vibration of double shrouded wheel.
Technical solution provided by the invention is as follows:
A kind of water pump twisted blade double shrouded wheel processing technology, comprising steps of
Single twisted blade is formed by 5-shaft linkage numerical control lathe entirety Milling Machining, wherein several described single torsions
Bent blade is successively spliced to form the double shrouded wheel;
It is welded in the stitching portion for two single twisted blades being disposed adjacent and forms weld seam, wherein the weld seam
Quantity it is identical as the quantity of single twisted blade of the double shrouded wheel.
In the technical program, the present invention solves the impeller bodies of the conventional whole Milling Machining of conventional water pump and front shroud welds
Weld seam existing for technique loosely, welding line structure influence hydraulic performance, the problem that can not process of distortion quantity multiple-blade.It also solves simultaneously
Structural deviation, the impeller surface of the conventionally produced impeller and Three Dimensional Design Model out of casting technique, the Sheet Metal Forming Technology etc. of having determined
The defects of technique is poor, leaf weight is uneven, center of gravity is asymmetric (the conventionally produced double shrouded wheel come out, at high cost, production
Period is long, precision is low, rough surface, and conventional impellers mold cannot achieve the biggish impeller manufacture of blade space torque, pass
System technique is used in the not high impeller of batch production required precision by mold, Foundry Production impeller, but is not suitable for impeller
Precisely manufacture).Batch is realized by 5-shaft linkage numerical control lathe since the structure of each single twisted blade is all the same, and
Processing and production, machining accuracy is high, and the practical structures of single twisted blade and the consistency of design structure are high, so that often
The structural integrity of one single twisted blade is high, ensure that the uniformity of the runner surfaces externally and internally of entire double shrouded wheel and smooth
Degree.So that the present invention significantly improves precision, surface flatness and the uniform journey of double shrouded wheel weight of double shrouded wheel manufacture
It spends, be greatly shortened the manufacturing cycle of double shrouded wheel, solve what distortion occurred greatly, in quantity multiple-blade entirety milling technique
The problems such as difficulty of processing is big, while the reliability of structure and hydraulic performance of double shrouded wheel are improved, reduce the vibration of double shrouded wheel
It is dynamic.
It is further preferred that described formed before single twisted blade also by 5-shaft linkage numerical control lathe entirety Milling Machining
Comprising steps of
The double shrouded wheel is divided into several single twisted blades according to design requirement, each described single torsion
Bent blade includes blade, front shroud and back shroud.
In the technical program, blade, front shroud and back shroud are designed and are processed as a whole by the present invention, real
Blade, front shroud and back shroud integration machine-shaping are showed, have realized seamless between blade, front shroud and back shroud, has kept away
Exempt from there is seam between front shroud and blade since the impeller bodies of whole milling are with after front shroud welding fabrication in the prior art
The generation of the case where gap, there are fluid leakages.
It is further preferred that the blade includes primary blades and splitterr vanes.
In the technical program, splitterr vanes and primary blades are integrally formed, and not only improve the flow field distribution of double shrouded wheel,
Further improve the mechanical integrated performance of double shrouded wheel.
It is further preferred that the thickness of the blade is 1.5-2mm.
In the technical program, vane thickness of the invention can reduce to 1.5-2mm, significantly improve the stream of this double shrouded wheel
Dynamic performance.
It is further preferred that the quantity of the single twisted blade of the double shrouded wheel is 4-20.
The present invention also provides a kind of water pump twisted blade double shrouded wheels, comprising:
Single twisted blade, several single twisted blades are successively spliced to form the double shrouded wheel, and described in each
Single twisted blade is formed by 5-shaft linkage numerical control lathe entirety Milling Machining;
The stitching portion of two be disposed adjacent the single twisted blade is welded to connect and is formed weld seam, and the weld seam
Quantity is identical as the quantity of single twisted blade of the double shrouded wheel.
In the technical program, the present invention solves the impeller bodies of the conventional whole Milling Machining of conventional water pump and front shroud welds
Weld seam existing for technique loosely, welding line structure influence hydraulic performance, the problem that can not process of distortion quantity multiple-blade.It also solves simultaneously
Structural deviation, the impeller surface of the conventionally produced impeller and Three Dimensional Design Model out of casting technique, the Sheet Metal Forming Technology etc. of having determined
The defects of technique is poor, leaf weight is uneven, center of gravity is asymmetric (the conventionally produced double shrouded wheel come out, at high cost, production
Period is long, precision is low, rough surface, and conventional impellers mold cannot achieve the biggish impeller manufacture of blade space torque, pass
System technique is used in the not high impeller of batch production required precision by mold, Foundry Production impeller, but is not suitable for impeller
Precisely manufacture).Batch is realized by 5-shaft linkage numerical control lathe since the structure of each single twisted blade is all the same, and
Processing and production, machining accuracy is high, and the practical structures of single twisted blade and the consistency of design structure are high, so that often
The structural integrity of one single twisted blade is high, ensure that the uniformity of the runner surfaces externally and internally of entire double shrouded wheel and smooth
Degree.So that the present invention significantly improves precision, surface flatness and the uniform journey of double shrouded wheel weight of double shrouded wheel manufacture
It spends, be greatly shortened the manufacturing cycle of double shrouded wheel, solve what distortion occurred greatly, in quantity multiple-blade entirety milling technique
The problems such as difficulty of processing is big, while the reliability of structure and hydraulic performance of double shrouded wheel are improved, reduce the vibration of double shrouded wheel
It is dynamic.
It is further preferred that each described single twisted blade includes blade, front shroud and back shroud.
In the technical program, blade, front shroud and back shroud are carried out integration as a whole and are processed by the present invention
Type, realizes seamless between blade, front shroud and back shroud, avoids in the prior art due to the impeller bodies of whole milling
After front shroud welding fabrication, there are gap between front shroud and blade, the case where there are fluid leakages generation.
It is further preferred that the blade includes primary blades and splitterr vanes.
In the technical program, splitterr vanes and primary blades are integrally formed, and not only improve the flow field distribution of double shrouded wheel,
Further improve the mechanical integrated performance of double shrouded wheel.
It is further preferred that the thickness of the blade is 1.5-2mm.
In the technical program, vane thickness of the invention can reduce to 1.5-2mm, significantly improve the stream of this double shrouded wheel
Dynamic performance.
It is further preferred that the quantity of the single twisted blade of the double shrouded wheel is 4-20.
A kind of water pump twisted blade double shrouded wheel provided by the invention and its processing technology, can bring following at least one
The utility model has the advantages that
1) double shrouded wheel for guaranteeing that spatial warping is big, the number of blade is more is completed to machine by way of grouping Processing, solves
The certainly whole problem that can not be processed.
2) it uses five-axle linkage Milling Machining, double shrouded wheel external and internal compositions and designs a model consistent, can be good at guaranteeing
The realization of design performance.
3) the double shrouded wheel surfaces externally and internally that 5-shaft linkage numerical control machine tooling comes out is very smooth, since Impeller Mass is distributed
The features such as uniform, the impeller low-frequency vibration produced using the technique are very low.
4) manufacturing cycle is short, and the lead time of double shrouded wheel can be greatly shortened, and single impeller manufacturing expense is equivalent to
One sleeve impeller expense is suitable for small lot and customizes.
5) welding together each single twisted blade by way of the welding of double shrouded wheel outer surface, weldering can be increased
The length and width of seam guarantees the intensity and reliability of weld seam, the flow field flow without influencing impeller internal.
6) entire machining tool pertains only to 5-shaft linkage numerical control lathe, and processing method is single and is easily achieved, and passes through programming
It can realize the mass production of same type of double shrouded wheel;Inhomogeneity can be realized by changing related processing parameters simultaneously
The rapid batch metaplasia of the double shrouded wheel of type produces, high in machining efficiency and simple.
7) it is machined out front shroud, blade and back shroud as one group, may be implemented seamless between three, avoided
After the impeller bodies and front shroud welding fabrication of whole milling, there are gaps between front shroud and blade, there are fluids
The case where leakage, occurs.
8) since impeller bodies use process for machining, vane thickness can reduce to 1.5mm~2mm, and mobile performance obtains
To significantly being promoted.
Detailed description of the invention
Below by clearly understandable mode, preferred embodiment is described with reference to the drawings, to water pump twisted blade enclosed leaf
Wheel and its above-mentioned characteristic, technical characteristic, advantage and its implementation of processing technology are further described.
Fig. 1 is a kind of example structure schematic diagram of water pump twisted blade double shrouded wheel of the invention;
Fig. 2 is a kind of example structure schematic diagram of single twisted blade of the invention;
Fig. 3 is water pump twisted blade double shrouded wheel another kind example structure schematic diagram of the invention.
Drawing reference numeral explanation:
1. single twisted blade, 11. blades, 111. primary blades, 112. splitterr vanes, 12. front shrouds, 13. back shrouds,
141. first weld seams, 142. second weld seams, the flow field inside 15..
Specific embodiment
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, Detailed description of the invention will be compareed below
A specific embodiment of the invention.It should be evident that drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, and obtain other embodiments.
To make simplified form, part related to the present invention is only schematically shown in each figure, their not generations
Its practical structures as product of table.In addition, there is identical structure or function in some figures so that simplified form is easy to understand
Component, only symbolically depict one of those, or only marked one of those.Herein, "one" not only table
Show " only this ", can also indicate the situation of " more than one ".
Herein, it should be noted that unless otherwise clearly defined and limited, term " installation ", " connects " connected "
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected;It can be machine
Tool connection, is also possible to be electrically connected;It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
Concrete meaning.
In example 1, a kind of water pump twisted blade double shrouded wheel processing technology, comprising steps of
Single twisted blade is formed by 5-shaft linkage numerical control lathe entirety Milling Machining, wherein several described single torsions
Bent blade is successively spliced to form the double shrouded wheel;
It is welded in the stitching portion for two single twisted blades being disposed adjacent and forms weld seam, wherein the weld seam
Quantity it is identical as the quantity of single twisted blade of the double shrouded wheel.
In the present embodiment, since the structure of each single twisted blade is all the same, and pass through 5-shaft linkage numerical control machine
Bed realizes batch machining and production, and machining accuracy is high, and the practical structures of single twisted blade and the consistency of design structure are high,
So that the structural integrity of each single twisted blade is high, the whole of the runner surfaces externally and internally of entire double shrouded wheel ensure that
Qi Du and smoothness, improve the hydraulic performance and reliability of impeller, and the vibrating noise for reducing the pump housing work when being, meet
The process requirements and use demand of the big double shrouded wheel of spatial warping.Manufacturing cycle is short, and double shrouded wheel can be greatly shortened
Lead time, single impeller manufacturing expense are equivalent to a sleeve impeller expense, are suitable for small lot and customize.In practical applications, lead to
The mode crossed in the welding of double shrouded wheel outer surface welds together each single twisted blade, can increase the length and width of weld seam
Degree, guarantees the intensity and reliability of weld seam, without influencing the flow field flow inside double shrouded wheel.
In example 2, a kind of water pump twisted blade double shrouded wheel processing technology, it is on the basis of example 1, described
It is further comprised the steps of: before forming single twisted blade by 5-shaft linkage numerical control lathe entirety Milling Machining
The double shrouded wheel is divided into several single twisted blades according to design requirement, each described single torsion
Bent blade includes blade, front shroud and back shroud.
In the present embodiment, blade, front shroud and back shroud are designed and are processed as a whole, leaf is realized
Piece, front shroud and back shroud integration machine-shaping, realize seamless between blade, front shroud and back shroud, avoid existing
Have since the impeller bodies of whole milling are with after front shroud welding fabrication in technology, there are gaps between front shroud and blade, deposit
The case where fluid leaks.
In the third embodiment, a kind of water pump twisted blade double shrouded wheel processing technology, on the basis of example 2, blade
Including primary blades and splitterr vanes.Splitterr vanes and primary blades are integrally formed, and not only improve the flow field distribution of double shrouded wheel,
Further improve the mechanical integrated performance of double shrouded wheel.Preferably, the quantity of the single twisted blade of double shrouded wheel is 4-20.When
So, in practical applications, the single twisted blade of double shrouded wheel can also be 6-12.And the number of the single distortion impeller of double shrouded wheel
Amount is configured according to pump housing flow design needs.
In example IV, as shown in Figure 1-3, a kind of water pump twisted blade double shrouded wheel, comprising: single twisted blade 1,
Several single twisted blades 1 are successively spliced to form double shrouded wheel, and each single twisted blade 1 passes through 5-shaft linkage numerical control
Lathe entirety Milling Machining is formed;The stitching portion of the single twisted blade 1 of two be disposed adjacent is welded to connect and is formed weld seam, and welds
The quantity of seam is identical as the quantity of single twisted blade 1 of double shrouded wheel.In practical applications, 5-shaft linkage numerical control machine is first passed through
The whole Milling Machining of bed forms each single twisted blade 1, then two single twisted blades 1 in contiguous concatenation together
Stitching portion is welded, so that the single twisted blade 1 of two of contiguous concatenation is welded to connect, it is worth noting that, individually
The weld seam of twisted blade 1 is located only within the outer surface of double shrouded wheel, i.e., along the preceding outer surface that the axis direction of double shrouded wheel is arranged
With rear outer surface so that two single twisted blades 1 be formed by weld seam include positioned at preceding outer surface the first weld seam 141 and
The second weld seam 142 positioned at rear outer surface, it is worth noting that, the splicing of two single twisted blades 1 is in double shrouded wheel
Without being welded at the flow field 15 in portion, avoid flow field 15 inside double shrouded wheel because weld seam there are due to influence hydraulic performance.
In embodiment five, as shown in Figure 1-3, each single twisted blade 1 includes leaf on the basis of example IV
Piece 11, front shroud 12 and back shroud 13.Back shroud 13 is arranged close to the central axis of double shrouded wheel and is set to the end of blade 11
End, and 12 structure of front shroud is projected on the preceding outer surface of double shrouded wheel and encloses and sets set on central axis along the axis direction of double shrouded wheel
It sets.Blade 11, front shroud 12 and back shroud 13 are carried out integrated machine-shaping by the present invention as a whole, realize blade
11, seamless between front shroud 12 and back shroud 13, avoid impeller bodies and front cover in the prior art due to whole milling
After 12 welding fabrication of plate, there are gap between front shroud 12 and blade 11, the case where there are fluid leakages generation.Preferably, leaf
Piece 11 includes primary blades 111 and splitterr vanes 112.Splitterr vanes 112 are located in the flow field 15 inside double shrouded wheel, and several
The preceding outer surface and rear outer surface of primary blades 111 together constitute the preceding outer surface and rear outer surface of double shrouded wheel.Preferably, leaf
The thickness of piece 11 is 1.5-2mm.11 thickness of blade can reduce to 1.5-2mm, and mobile performance is improved significantly.It is preferred that
Ground, the quantity of the single twisted blade 1 of double shrouded wheel are 4-20.Certainly, in practical applications, the single distortion leaf of double shrouded wheel
Piece 1 can also be 6-12.And the quantity of the single distortion impeller of double shrouded wheel is configured according to pump housing flow design needs.
It should be noted that above-described embodiment can be freely combined as needed.The above is only of the invention preferred
Embodiment, it is noted that for those skilled in the art, in the premise for not departing from the principle of the invention
Under, several improvements and modifications can also be made, these modifications and embellishments should also be considered as the scope of protection of the present invention.
Claims (10)
1. a kind of water pump twisted blade double shrouded wheel processing technology, which is characterized in that comprising steps of
Single twisted blade is formed by 5-shaft linkage numerical control lathe entirety Milling Machining, wherein several described single distortion leaves
Piece is successively spliced to form the double shrouded wheel;
It is welded in the stitching portion for two single twisted blades being disposed adjacent and forms weld seam, wherein the number of the weld seam
It measures identical as the quantity of single twisted blade of the double shrouded wheel.
2. water pump twisted blade double shrouded wheel processing technology according to claim 1, which is characterized in that
Described formed before single twisted blade by 5-shaft linkage numerical control lathe entirety Milling Machining further comprises the steps of:
The double shrouded wheel is divided into several single twisted blades according to design requirement, each described single distortion leaf
Piece includes blade, front shroud and back shroud.
3. water pump twisted blade double shrouded wheel processing technology according to claim 2, it is characterised in that:
The blade includes primary blades and splitterr vanes.
4. water pump twisted blade double shrouded wheel processing technology according to claim 2, it is characterised in that:
The thickness of the blade is 1.5-2mm.
5. water pump twisted blade double shrouded wheel processing technology according to any one of claims 1-4, it is characterised in that:
The quantity of the single twisted blade of the double shrouded wheel is 4-20.
6. a kind of water pump twisted blade double shrouded wheel characterized by comprising
Single twisted blade, several single twisted blades are successively spliced to form the double shrouded wheel, and each is described single
Twisted blade is formed by 5-shaft linkage numerical control lathe entirety Milling Machining;
The stitching portion of two be disposed adjacent the single twisted blade is welded to connect and is formed weld seam, and the quantity of the weld seam
It is identical as the quantity of single twisted blade of the double shrouded wheel.
7. water pump twisted blade double shrouded wheel according to claim 6, it is characterised in that:
Each described single twisted blade includes blade, front shroud and back shroud.
8. water pump twisted blade double shrouded wheel according to claim 7, it is characterised in that:
The blade includes primary blades and splitterr vanes.
9. water pump twisted blade double shrouded wheel according to claim 7, it is characterised in that:
The thickness of the blade is 1.5-2mm.
10. according to water pump twisted blade double shrouded wheel described in claim 6-9 any one, it is characterised in that:
The quantity of the single twisted blade of the double shrouded wheel is 4-20.
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CN112247492A (en) * | 2020-10-26 | 2021-01-22 | 航天科工哈尔滨风华有限公司 | Method for connecting impeller cover of closed impeller and impeller |
CN114087025A (en) * | 2021-11-18 | 2022-02-25 | 新乡航空工业(集团)有限公司 | Combined closed impeller with milling blades and impeller manufacturing method |
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Application publication date: 20190621 |