CN102864352B - Magnesium alloy and device and method for machining magnesium alloy handrail ring of wheelchair - Google Patents
Magnesium alloy and device and method for machining magnesium alloy handrail ring of wheelchair Download PDFInfo
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- CN102864352B CN102864352B CN201210323032.6A CN201210323032A CN102864352B CN 102864352 B CN102864352 B CN 102864352B CN 201210323032 A CN201210323032 A CN 201210323032A CN 102864352 B CN102864352 B CN 102864352B
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- fixed sheave
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Abstract
The invention discloses a magnesium alloy, which contains 6.0 percent of Al, 1.0 percent of Zn, 0.3 percent of Mn, 3.0 percent of rare-earth elements, 0.8 percent of Ca and the balance of Mg, and belongs to the fields of magnesium alloy materials and applications thereof. A device for machining a magnesium alloy handrail ring of a wheelchair comprises a bracket and a power device, and is characterized in that: a fluted disc and a fixed grooved pulley are arranged on the bracket through a central dead axle, and are coaxial with each other; the fluted disc is arranged below the fixed grooved pulley, and is provided with a compression wheel and a guide wheel; the power device comprises a speed regulating motor; a revolving shaft of the speed regulating motor is provided with a driving gear; and the driving gear is meshed with the fluted disc. Compared with the conventional magnesium alloy AZ31, the magnesium alloy disclosed by the invention has remarkably higher deformation capability and higher tensile strength. The high-stability second-phase-enhanced high-plastic-deformation magnesium alloy has typical physical properties, to be specific, the room-temperature tensile strength and the yield strength are 320-360Mpa and 260-290Mpa respectively.
Description
Technical field
The invention belongs to magnesium alloy materials and Application Areas thereof.
Background technology
The main raw of manufacturing at present rehabilitation wheelchair car has steel/aluminium alloy, titanium alloy, carbon fiber etc.And magnesium alloy is the lightest structural metallic materials of proportion in the practical application of the current world, its major advantage has: first China's magnesium resource is abundant, and export volume ranks first in the world; Its characteristic specific tenacity is high, specific rigidity is strong, shock absorption is strong, damping and amortization is better than not yielding, the recyclable recycling of other metals, life-time service, by universally acknowledged be 21st century " green engineering material ", during Ye Shi China 12, emphasis is encouraged the type material of cross-cutting development, the wheel-chair of making of magnesium alloy is lighter than use steel, aluminium alloy, its proportion is 2/3 of aluminium, 1/4 of steel.
Existing typical wrought magnesium alloys has AZ31 both at home and abroad, AZ61, with trades mark such as ZK60, they possess certain tensile strength under greenhouse, but plastic deformation ability is not high, except with matrix magnesium be hexagonal structure slip system rare outside the Pass, mainly due in deformation process, the interface of conventional crystal strengthening phase and matrix easily produces stress concentration, causes the germinating of crackle, thereby causes the premature failure of material.For reducing the cost of magnesium-rare earth,
Applicant, through hundreds of the experiments of 3 years, develops the new standard GB/T13800-2009 that magnesium alloy wheel chair has reached national formulation finally, belongs to domestic the first.For the application of magnesium alloy materials in rehabilitation accessory had laid a good foundation.
Summary of the invention
In order to make full magnesium lightweight wheelchair frame, make complete vehicle weight lighter, magnesium material is made full use of in each structural part, the invention provides the apparatus and method of magnesium alloy and processing magnesium alloy wheelchair armrest circle.
Technical scheme of the present invention is:
A magnesium alloy, alloy content is by mass percentage: Al6.0 %; Zn1.0 %; Mn0.3 %; Rare earth element 3.0%; Ca0.8 %; All the other are Mg.
Rare earth element of the present invention adopts the rare earth element that in Changchun, Ke Ximei Mei Ye limited liability company produces.
A kind of device of processing magnesium alloy wheelchair armrest circle, comprise support, power set, it is characterized in that support arranges fluted disc, fixed sheave by center dead axle, fluted disc, fixed sheave are coaxial, fluted disc is arranged on the below of fixed sheave, and contact roller and guide deflection sheave are set on fluted disc; Power set comprises a buncher, in the rotating shaft of buncher, driving toothed gear is set; Driving toothed gear and fluted disc engagement.
Pipe fitting clamping element is set on the wheel rim of described fixed sheave;
Described contact roller and sheave are close to.
Described guide deflection sheave is arranged on contact roller front end 80mm place.
Described pipe fitting clamping element is arranged on 10 millimeters of distance rotation zero positions and locates on the wheel rim of fixed sheave.
Described fixed sheave is, on circle wheel, groove is set.
The diameter of described fixed sheave conforms to hand rim diameter.
The ratio of revolution of described driving toothed gear and fluted disc is 1:4.
A kind of method of processing magnesium alloy wheelchair armrest circle, magnesium-alloy tube is placed in the groove of fixed sheave, adjustable compression auxiliary wheel and fixed sheave are held pipe fitting tightly, rotate buncher simultaneously, magnesium-alloy tube rotates 10 millimeters of places of zero position front end in fixed sheave, by pipe fitting clamping element, make deformation stress obtain buffering, at the uniform velocity rotating 360 degrees is plastic.
Magnesium alloy materials of the present invention is compared with current most widely used commercial wrought magnesium alloys AZ31, and deformability is apparently higher than AZ31, and tensile strength is higher than AZ31 simultaneously.The high-ductility wrought magnesium alloys typical case mechanical property that the second-phase of high stability strengthens: room temperature tensile strength and yield strength are respectively 320Mpa-360Mpa, 260Mpa-290Mpa, surmount 220Mpa, the 160Mpa of AZ31 comprehensively.
The mechanical property experiment of magnesium alloy of the present invention: the shape of tension specimen all adopts dumbbell shaped.
Rate of extension tension test is carried out in Instron 1121 material-testing machine, and draw speed is 1.0mm/min, and room temperature tensile horizontal survey 3 times, averages.
The mechanical property of extruded section: yield strength 288MPa, tensile strength 361MPa, elongation 19.2%;
The mechanical property of extruded tube: yield strength 236MPa, tensile strength 324MPa, elongation 16.1%;
The mechanical property of welding tubing: yield strength 213MPa, tensile strength 315MPa, elongation 14.5%.
Alloy grain after crimp is tiny, even, and grain-size is below 2 microns, and has very tiny particulate state dispersion phase precipitation, and crystal grain strengthening effect is obvious, has also improved the deformability of alloy simultaneously.From Alloy Fracture scanned picture, can find out, the fracture mode of alloy is ductile rupture, is characterized as micro-mouthful of accumulation type, embodies the high-ductility of alloy.
Magnesium alloy wheel chair hand rim has following advantage:
1. heat loss through conduction performance is better than aluminium alloy and plastics, and user is hand feel and drape at the volley.
2. weight ratio aluminium is light by 30%, and Young's modulus is little, exquisite in texture.
3. replace plastics hand rim raw material, its weight is identical, recyclable recycling.
4. specific tenacity is high, and specific rigidity is strong, and life-time service is not yielding.
Accompanying drawing explanation
Fig. 1 is the structure iron of the device of processing magnesium alloy wheelchair armrest circle in the present invention.
Fig. 2 is the vertical view of Fig. 1.
In figure, 1, fixed sheave, 2, fluted disc, 3, driving toothed gear, 4, contact roller, 5, guide deflection sheave, 6, support, 7, center dead axle, 8, main drive shaft, 9, motor, 10, magnesium-alloy tube.
Embodiment
Shown in Fig. 1, Fig. 2, the device of processing magnesium alloy wheelchair armrest circle of the present invention comprises support 6, it is characterized in that the fixed sheave 1 of setting on support 6, and fixed sheave 1 is fastening by keyway and center dead axle 7.The below of fixed sheave 1 arranges a fluted disc 2, and fluted disc 2 use bearings are connected with center dead axle.Driving toothed gear 3 is with fluted disc 2 by ratio of revolution 1:4 interlock, and main drive shaft 8 belows arrange a buncher 9, and buncher 9 is by the rotating speed of demand regulating tooth dish 2.At fluted disc 2, by dead axle, pressure-adjustable bearing up pulley 4 is installed, contact roller 4 is close to sheave 1.At contact roller, 4 front end 80mm places arrange a guide deflection sheave 5, on the wheel rim of fixed sheave 1 and apart from rotation 10 millimeters of places of zero position, pipe fitting clamping element are set.
A method for processing magnesium alloy wheelchair armrest circle, alloy content is by mass percentage: Al6.0 %; Zn1.0 %; Mn0.3 %; Rare earth element 3.0%; Ca0.8 %; All the other are placed in the groove of fixed sheave for the magnesium-alloy tube of Mg, adjustable compression auxiliary wheel and fixed sheave are held pipe fitting tightly, rotate buncher simultaneously, magnesium-alloy tube rotates 10 millimeters of places of zero position front end in fixed sheave, by pipe fitting clamping element, make deformation stress obtain buffering, at the uniform velocity rotating 360 degrees is plastic.
The rare earth element product that in rare earth element outsourcing of the present invention Changchun, Ke Ximei Mei Ye limited liability company produces.
Explain: rare earth metal (rare earth metals) claim again rare earth element, and rare metal is the general name of scandium, yttrium, 17 kinds of elements of group of the lanthanides in periodic table of elements III B family, conventional R or RE represent.
Claims (8)
1. the device of a processing magnesium alloy wheelchair armrest circle, comprise support, power set, it is characterized in that support arranges fluted disc, fixed sheave by center dead axle, fluted disc, fixed sheave are coaxial, fluted disc is arranged on the below of fixed sheave, and contact roller and guide deflection sheave are set on fluted disc; Power set comprises a buncher, in the rotating shaft of buncher, driving toothed gear is set; Driving toothed gear and fluted disc engagement.
2. the device of a kind of processing magnesium alloy wheelchair armrest circle according to claim 1, is characterized in that, on the wheel rim of described fixed sheave, pipe fitting clamping element is set.
3. the device of a kind of processing magnesium alloy wheelchair armrest circle according to claim 1, is characterized in that described contact roller and sheave are close to.
4. the device of a kind of processing magnesium alloy wheelchair armrest circle according to claim 1, is characterized in that described guide deflection sheave is arranged on contact roller front end 80mm place.
5. the device of a kind of processing magnesium alloy wheelchair armrest circle according to claim 1, is characterized in that described pipe fitting clamping element is arranged on 10 millimeters of distance rotation zero positions and locates on the wheel rim of fixed sheave.
6. the device of a kind of processing magnesium alloy wheelchair armrest circle according to claim 1, is characterized in that the diameter of described fixed sheave conforms to hand rim diameter.
7. the device of a kind of processing magnesium alloy wheelchair armrest circle according to claim 1, the ratio of revolution that it is characterized in that described driving toothed gear and fluted disc is 1:4.
8. the device of a kind of processing magnesium alloy wheelchair armrest circle according to claim 1, it is characterized in that magnesium-alloy tube to be placed in the groove of fixed sheave, adjustable compression auxiliary wheel and fixed sheave are held pipe fitting tightly, rotate buncher simultaneously, magnesium-alloy tube rotates 10 millimeters of places of zero position front end in fixed sheave, by pipe fitting clamping element, make deformation stress obtain buffering, at the uniform velocity rotating 360 degrees is plastic.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210323032.6A CN102864352B (en) | 2012-09-04 | 2012-09-04 | Magnesium alloy and device and method for machining magnesium alloy handrail ring of wheelchair |
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| CN201210323032.6A CN102864352B (en) | 2012-09-04 | 2012-09-04 | Magnesium alloy and device and method for machining magnesium alloy handrail ring of wheelchair |
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| CN102864352B true CN102864352B (en) | 2014-02-26 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103740993A (en) * | 2014-01-14 | 2014-04-23 | 古交市银河镁业有限公司 | Lightweight magnesium alloy inlaid adjustable crutch |
| CN104492885A (en) * | 2014-12-02 | 2015-04-08 | 江苏武进不锈股份有限公司 | Automatic tube bending machine |
| CN105695827A (en) * | 2016-04-25 | 2016-06-22 | 深圳市创世达实业有限公司 | Magnesium-aluminum alloy material and lightweight non-resistance motor thereof |
| CN108385006A (en) * | 2018-03-19 | 2018-08-10 | 山西瑞格金属新材料有限公司 | High-strength anti-flaming diecast magnesium alloy and preparation method thereof |
| KR102210236B1 (en) * | 2018-12-14 | 2021-02-01 | 울산과학기술원 | Magnesium alloy materials and method for producing the same |
| CN110216175B (en) * | 2019-07-19 | 2021-01-26 | 浙江圣雪休闲用品有限公司 | Bending device and bending process thereof |
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| JP2007268553A (en) * | 2006-03-30 | 2007-10-18 | Sumitomo Electric Ind Ltd | Method for manufacturing magnesium alloy pipe |
| WO2009080346A1 (en) * | 2007-12-21 | 2009-07-02 | Sunrise Medical Gmbh & Co. Kg | Caster strut, wheelchair frame and wheelchair |
| CN201295333Y (en) * | 2007-09-28 | 2009-08-26 | 万里脚车工业有限公司 | Electric and manual four-wheeler special for the disabled |
| CN101805865A (en) * | 2010-04-09 | 2010-08-18 | 嘉兴中科亚美合金技术有限责任公司 | High-strength magnesium alloy tube |
| CN102119891A (en) * | 2010-01-12 | 2011-07-13 | 许湘菱 | Auxiliary driving structure of wheel chair |
| CN102330006A (en) * | 2010-07-13 | 2012-01-25 | 比亚迪股份有限公司 | Wrought magnesium alloy and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7285081B1 (en) * | 2003-07-17 | 2007-10-23 | Joseph Napoleon | Range-o-matic xerciser |
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| CN1614066A (en) * | 2004-09-29 | 2005-05-11 | 上海交通大学 | Cheap high-strength heat-resistant deforming magnesium alloy |
| CN1614064A (en) * | 2004-09-29 | 2005-05-11 | 上海交通大学 | High-strength creep resistant deforming magnesium alloy containing Ca and Si |
| JP2007268553A (en) * | 2006-03-30 | 2007-10-18 | Sumitomo Electric Ind Ltd | Method for manufacturing magnesium alloy pipe |
| CN201295333Y (en) * | 2007-09-28 | 2009-08-26 | 万里脚车工业有限公司 | Electric and manual four-wheeler special for the disabled |
| WO2009080346A1 (en) * | 2007-12-21 | 2009-07-02 | Sunrise Medical Gmbh & Co. Kg | Caster strut, wheelchair frame and wheelchair |
| CN102119891A (en) * | 2010-01-12 | 2011-07-13 | 许湘菱 | Auxiliary driving structure of wheel chair |
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| CN102330006A (en) * | 2010-07-13 | 2012-01-25 | 比亚迪股份有限公司 | Wrought magnesium alloy and preparation method thereof |
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Effective date of registration: 20230425 Address after: 030200 No.2 Xingye Road, Tunlan Street Office, Gujiao City, Taiyuan City, Shanxi Province Patentee after: Taiyuan Huimagnesium Magnesium Industry Technology Co.,Ltd. Address before: 030200 Xingyuan road science and Technology Development Park, Gujiao City, Taiyuan City, Shanxi Province Patentee before: GUJIAO CITY YINHE MAGNESIUM CO.,LTD. |