CN101698274A - Method for manufacturing kneading roller blades of aerospace fuel mixers - Google Patents
Method for manufacturing kneading roller blades of aerospace fuel mixers Download PDFInfo
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- CN101698274A CN101698274A CN200910218634A CN200910218634A CN101698274A CN 101698274 A CN101698274 A CN 101698274A CN 200910218634 A CN200910218634 A CN 200910218634A CN 200910218634 A CN200910218634 A CN 200910218634A CN 101698274 A CN101698274 A CN 101698274A
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- kneading roller
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- roller blades
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Abstract
The invention belongs to blade machining technology, and particularly provides a method for manufacturing kneading roller blades of aerospace fuel mixers. The method comprises the following: 1) a step of machining profiles of kneading roller blades, which is to a) design through computer-aided software according to the required design size of the kneading roller blades; b) input designed parameters of the computer-aided software into digital machining equipment for machining; c) allow the digital machining equipment to process and mold a group of kneading roller blade explorators produced in a required batch; d) machine rough castings having technological bosses on two sides according to the design size of the kneading roller blades; e) machine the rough castings through a group of kneading roller blade explorators, form the whole profiles of the kneading roller blades, allow the machining error of the whole profiles to be not more than 0.5 mm and prearrange 0.2 mm of margin for abrading and fine polishing; and f) perform mirror finishing on the curved surfaces of the blades, reach 0.2 to 0.8 mu m and allow the contact area of two blades after grinding to be more than 65 percent, wherein the light transmission rate of the blade profiles is required to be less than 0.2; and 2) a step of machining a blade keyway.
Description
Technical field
The invention belongs to the blade process technology, is the manufacture method that is used in particular for kneading roller blades of aerospace fuel mixers.
Background technology
The fuel mixers kneading roller blades is that a pair of abnormal shape is pinched roller, and this manufacturing that abnormal shape is pinched roller all relates to non-constant section twisted blade process technology.
The fuel mixers kneading roller blades is made up of two big parts: one is that solid variable cross-section reverses blade, and one is that hollow variable cross-section reverses blade.In the work, drive by hydraulic motor, two paddles are all carried out rotation, and hollow blade is also around the solid blade revolution simultaneously.By gap, the spatial variations between two paddles, carry out stirring, the kneading processing of liquid, solid two-phase material.Wherein the most important thing is to guarantee does not definitely have mechanical collision, friction between two blades.
For this reason, need high accuracy and very complicated technology to process.When required big industrial production, process by the technology and the special numerical control device of complexity, not only uneconomical, time but also long, can increase the production cost of this fuel mixers greatly.
In addition, the precision height of kneading roller blades keyway own, keyway is long, the keyway profile will with the blade-span axis keeping parallelism, be difficult for to guarantee.General slotting machine process equipment be can not be completed.
Summary of the invention
The purpose of this invention is to provide a kind of good manufacturability, the fuel mixers kneading roller blades manufacture method that cost is low, precision is high.
The object of the present invention is achieved like this, and fuel mixers kneading roller blades manufacture method the steps include:
1) kneading roller blades profile processing;
A) according to required kneading roller blades design size, design by CASE(Computer Aided Software Engineering);
B) parameter of computer-aided software engineering being input to digital process equipment processes;
C) the kneading roller blades pattern of one group of required batch process of digital process equipment machine-shaping;
D) process the woollen foundry goods of two sideband false bosses according to the kneading roller blades design size;
E) process woollen foundry goods by one group of kneading roller blades pattern, form the whole profile of kneading roller blades, whole
Individual profile mismachining tolerance is not more than 0.5mm, reserves the polishing of 0.2mm, the smart surplus of throwing;
F) the blade curved surface carries out mirror finish, reaches 0.2-0.8 μ m, and two blades grind back two contact area greater than 65%; Blade profile requires light transmittance less than 0.2;
2) blade keyway processing
G) by frock fixed blades blade;
H) rely on tool locating blade axle center;
I) use hydraulic planer processing, guarantee that the cutter shaft axle center is concentric with the blade axle center, regulate cutter to the keyway initial processing position;
J) guarantee that the cutter mobile alignment is parallel consistent with the hydraulic planer Tool in Cutting line of motion, the processing keyway;
K) whole profile of kneading roller blades and keyway completion of processing.
Described kneading roller blades material is 1Cr18Ni9Ti.
Described woollen foundry goods machine-finish allowance is 3-5mm.
Described kneading roller blades is the non-constant section twisted blade.
One of described kneading roller blades is that solid variable cross-section reverses blade, and one is that hollow variable cross-section reverses blade.
Advantage of the present invention is: because the processing of kneading roller blades profile at first provides the pattern of a cover non-constant section twisted blade by high precision numerical control equipment, pass through pattern then again by the whole profile of general NC machine tooling kneading roller blades, can not only guarantee product quality, and reduce producing cost greatly, reduce the production cycle.And blade keyway processing is finished keyway length by dedicated accessory tool to process apart from high accuracy by the accurate method in kneading roller blades axle center, location, overcome common process equipment can not process long keyway, the keyway profile will with the problem of blade-span axis keeping parallelism.
The invention will be further described below in conjunction with the embodiment accompanying drawing:
Description of drawings
What Fig. 1 illustrated is that solid variable cross-section reverses the blade structure chart;
Fig. 2 is Fig. 1 right view;
What Fig. 3 illustrated is that hollow variable cross-section reverses the blade structure chart;
Fig. 4 is Fig. 3 right view;
Fig. 5 is a blade keyway process principle schematic diagram.
Among the figure, 1, solid variable cross-section reverses blade; 2, hollow variable cross-section reverses blade; 3, cutter; 4, cutter keyway; 5, variable cross-section reverses the blade axle center; The cutter axle center.
The specific embodiment
As shown in Figure 1, a solid variable cross-section in the signal kneading roller blades reverses the structure of blade, and Fig. 2 is Fig. 1 right view;
Good manufacturability, the solid variable cross-section that cost is low, precision is high are reversed the blade procedure of processing and are comprised:
1) solid variable cross-section reverses the processing of blade 1 profile;
A) reverse the blade design size according to required solid variable cross-section, design by CASE(Computer Aided Software Engineering);
B) parameter of computer-aided software engineering being input to digital process equipment processes;
C) the solid variable cross-section of one group of required batch process of digital process equipment machine-shaping reverses the pattern of blade;
D) the solid variable cross-section of foundation reverses the pattern size of blade, processes the woollen foundry goods of two sideband false bosses, and material is 1Cr18Ni9Ti, and woollen foundry goods machine-finish allowance is 3-5mm.
E) process woollen foundry goods by pattern, solid variable cross-section reverses the whole profile of blade among formation Fig. 1, and whole profile mismachining tolerance is not more than 0.5mm, reserves the polishing of 0.2mm, the smart surplus of throwing;
F) the blade curved surface carries out mirror finish, reaches 0.2-0.8 μ m, makes solid variable cross-section reverse blade and hollow variable cross-section and reverses blade after grinding, and two break-in contact area is greater than 65%; Blade profile requires light transmittance less than 0.2.
As shown in Figure 3, another hollow variable cross-section reverses the structure chart of blade in the signal kneading roller blades, and Fig. 4 is Fig. 3 right view;
Good manufacturability, the hollow variable cross-section that cost is low, precision is high are reversed the blade procedure of processing and are comprised:
2) hollow variable cross-section reverses the processing of blade 2 profiles;
A) reverse the blade design size according to required hollow variable cross-section, design by CASE(Computer Aided Software Engineering);
B) parameter of computer-aided software engineering being input to digital process equipment processes;
C) the hollow variable cross-section of one group of required batch process of digital process equipment machine-shaping reverses the pattern of blade;
D) the hollow variable cross-section of foundation reverses the woollen foundry goods of the pattern dimensioned two sideband false bosses of blade, and material is 1Cr18Ni9Ti, and woollen foundry goods machine-finish allowance is 3-5mm.
E) process woollen foundry goods by pattern, the variable cross-section that forms Fig. 3 hollow core reverses the whole profile of blade, and whole profile mismachining tolerance is not more than 0.5mm, reserves the polishing of 0.2mm, the smart surplus of throwing;
F) the blade curved surface carries out mirror finish, reaches 0.2-0.8 μ m, makes hollow variable cross-section reverse blade and solid variable cross-section reverses blade, grinds back two break-in area greater than 65%; Blade profile requires light transmittance less than 0.2.
Among Fig. 1, Fig. 3, size A presses the product type difference, and its value is: 230-1344,
Size φ B presses the product type difference, and its value is: 90-720.
As shown in Figure 5, be hollow blade keyway processing method schematic diagram.
Hollow variable cross-section reverses blade 2 and solid variable cross-section and reverses blade 1 something in common and be that they all can't be processed with common slotting machine at the keyway of axle journal inner chamber.
Can finish the processing of the keyway of length easily by the method that Fig. 5 provides.
3) variable cross-section reverses the processing of blade keyway:
G) fixedly variable cross-section reverses blade on frock;
H) determine that according to frock variable cross-section reverses blade axle center 5;
I) to reverse blade axle center 5 concentric for the cutter axle center 6 that makes hydraulic planer cutter 3 and variable cross-section, regulates cutter 3 and reverse blade keyway 4 initial processing position to variable cross-section;
J) guarantee that the cutter mobile alignment is parallel with the hydraulic planer Tool in Cutting line of motion, processing keyway 4;
4) variable cross-section reverses whole profile of blade and keyway completion of processing.
Because solid variable cross-section reverses blade and hollow variable cross-section and reverses blade and be the non-constant section twisted blade.Adopting common numerical control bed is the shape processing that can not finish among Fig. 1 and Fig. 3.The equipment of its energy manuscript 1 and Fig. 3 is very expensive.Therefore, a large amount of machining high-precisions variable cross-section reverse blade and solid variable cross-section to reverse its price of blade very high, be unfavorable for large batch of production.
Claims (5)
1. fuel mixers kneading roller blades manufacture method the steps include:
1) kneading roller blades profile processing;
A) according to required kneading roller blades design size, design by CASE(Computer Aided Software Engineering);
B) parameter of computer-aided software engineering being input to digital process equipment processes;
C) the kneading roller blades pattern of one group of required batch process of digital process equipment machine-shaping;
D) process the woollen foundry goods of two sideband false bosses according to the kneading roller blades design size;
E) process woollen foundry goods by one group of kneading roller blades pattern, form the whole profile of kneading roller blades, whole profile mismachining tolerance is not more than 0.5mm, reserves the polishing of 0.2mm, the smart surplus of throwing;
F) the blade curved surface carries out mirror finish, reaches 0.2-0.8 μ m, and two blades grind back two contact area greater than 65%; Blade profile requires light transmittance less than 0.2;
2) blade keyway processing
G) by frock fixed blades blade;
H) rely on tool locating blade axle center;
I) use hydraulic planer processing, guarantee that the cutter shaft axle center is concentric with the blade axle center, regulate cutter to the keyway initial processing position;
J) guarantee that the cutter mobile alignment is parallel consistent with the hydraulic planer Tool in Cutting line of motion, the processing keyway;
K) whole profile of kneading roller blades and keyway completion of processing.
2. fuel mixers kneading roller blades manufacture method according to claim 1 the steps include: that described kneading roller blades material is 1Cr18Ni9Ti.
3. fuel mixers kneading roller blades manufacture method according to claim 1 the steps include: that described woollen foundry goods machine-finish allowance is 3-5mm.
4. fuel mixers kneading roller blades manufacture method according to claim 1 the steps include: that described kneading roller blades is the non-constant section twisted blade.
5. fuel mixers kneading roller blades manufacture method according to claim 1 the steps include: that one of described kneading roller blades is that solid variable cross-section reverses blade, and one is that hollow variable cross-section reverses blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102186343A CN101698274B (en) | 2009-10-29 | 2009-10-29 | Method for manufacturing kneading roller blades of aerospace fuel mixers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102186343A CN101698274B (en) | 2009-10-29 | 2009-10-29 | Method for manufacturing kneading roller blades of aerospace fuel mixers |
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| Publication Number | Publication Date |
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| CN101698274A true CN101698274A (en) | 2010-04-28 |
| CN101698274B CN101698274B (en) | 2011-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028917A (en) * | 2012-12-31 | 2013-04-10 | 四川绵竹鑫坤机械制造有限责任公司 | Machining process for low-pressure first-stage stationary blades of gas turbines |
| CN104191185A (en) * | 2014-08-27 | 2014-12-10 | 西北工业大学 | Machining technology of through-hole-free minitype turbine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2139486Y (en) * | 1992-05-30 | 1993-08-04 | 山西省机械设计院 | Spiral vane forming machine |
| CN1066989C (en) * | 1997-07-11 | 2001-06-13 | 郑镇模 | Apparatus for manufacturing rotary blade for use in agricultural machines |
| KR100598009B1 (en) * | 2003-02-11 | 2006-07-06 | 김영기 | Making method of vane for compressor |
| CN100355527C (en) * | 2005-05-20 | 2007-12-19 | 东北轻合金有限责任公司 | Method for fabricating propeller blade made from aluminium alloy |
| CN1887459A (en) * | 2006-07-14 | 2007-01-03 | 中北大学 | Variable wall thickness vane making process and its rolling formation apparatus |
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2009
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028917A (en) * | 2012-12-31 | 2013-04-10 | 四川绵竹鑫坤机械制造有限责任公司 | Machining process for low-pressure first-stage stationary blades of gas turbines |
| CN103028917B (en) * | 2012-12-31 | 2014-12-03 | 四川绵竹鑫坤机械制造有限责任公司 | Machining process for low-pressure first-stage stationary blades of gas turbines |
| CN104191185A (en) * | 2014-08-27 | 2014-12-10 | 西北工业大学 | Machining technology of through-hole-free minitype turbine |
| CN104191185B (en) * | 2014-08-27 | 2016-04-13 | 西北工业大学 | A kind of processing technology without through hole miniature turbine |
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| CN101698274B (en) | 2011-04-27 |
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