CN113731217B - Powder mixing arrangement for magnesium matrix alloy - Google Patents
Powder mixing arrangement for magnesium matrix alloy Download PDFInfo
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- CN113731217B CN113731217B CN202111038646.5A CN202111038646A CN113731217B CN 113731217 B CN113731217 B CN 113731217B CN 202111038646 A CN202111038646 A CN 202111038646A CN 113731217 B CN113731217 B CN 113731217B
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Abstract
The invention provides a powder mixing device for magnesium base alloy, which comprises: the centrifugal filter device comprises a shell, a cylindrical discharging device and a centrifugal filter device, wherein a first bearing is fixedly connected with an opening at the upper end of the shell, an end cover is hinged with an opening at the lower end of the shell, the cylindrical discharging device is fixedly connected with an inner ring of the first bearing, a containing groove is arranged at the center of the bottom of the discharging device, a motor rotationally connected with the containing groove is arranged in the containing groove, and the discharging device is provided with a plurality of discharging areas with leakage holes at the bottom; the centrifugal filter device is fixedly connected with the lower surface of the cylindrical discharging device and is provided with a plurality of snake-shaped grooves which are arrayed along the circumferential direction and extend along the axial direction, the output shaft of the motor is fixedly connected with the centrifugal filter device, the centrifugal filter device is provided with a transition hole corresponding to the leak hole in a penetrating way, the snake-shaped grooves are fixedly connected with snake-shaped pipes with holes at two ends and a plurality of centrifugal holes distributed on the surfaces, the hole at the upper end of each snake-shaped pipe is correspondingly connected with the transition hole, a filter block net is arranged at the hole at the lower end, and a slag discharging box is fixedly connected to the bottom of the centrifugal filter device. The invention can remove metal powder impurities and mix uniformly.
Description
Technical Field
The invention belongs to the technical field of metal powder mixing, and particularly relates to a powder mixing device for magnesium matrix alloy.
Background
With the development of aerospace, the ZK60 magnesium-based alloy powder metallurgy technology is rapidly developed and widely applied to the technical field of aerospace. According to GB/T51153-2016 ZK60 magnesium alloy material, the main alloy components comprise 4.8-6.2% of zinc and more than or equal to 0.45% of zirconium, and the main characteristics of the ZK60 magnesium base alloy are very high ductility and high temperature resistance, so the magnesium alloy is usually used as parts such as a brake shell, an instrument main body, an undercarriage, a rib, a spar and the like. Whereas the metallurgical processes for ZK60 magnesium base alloys typically go through processes such as: in the process, because the feeding and screening links are separated, workers often place original metal particles such as zinc and zirconium on a feeding device for feeding in the feeding process, but other metal particles are often added into the original zinc and zirconium metal in the transportation link and have diameters larger than those of the zinc and zirconium metal particles which often affect the quality and characteristics of the ZK60 magnesium base alloy and influence equipment made of the magnesium base alloy, so that the fatigue resistance of aerospace equipment made of the ZK60 magnesium base alloy is greatly influenced.
Disclosure of Invention
The invention provides a powder mixing device for a magnesium matrix alloy, and aims to solve the technical problem that the quality of a ZK60 magnesium matrix alloy is reduced because other metals are easily mixed together in the mixing process of the conventional ZK60 magnesium matrix alloy.
The technical scheme of the invention is as follows: a powder mixing apparatus for a magnesium base alloy, comprising: the device comprises a shell, wherein the upper end and the lower end of the shell are both provided with openings, a first bearing is fixedly connected to the opening at the upper end, an end cover is hinged to the opening at the lower end, and an outflow hole is formed in the bottom of the end cover;
the cylindrical material placing device is fixedly connected with the inner ring of the first bearing, a containing groove is formed in the center of the bottom of the material placing device, a motor is arranged in the containing groove, the motor is rotationally connected with the containing groove, the material placing device is provided with a plurality of material placing areas for placing different metal powders, and leakage holes are formed in the bottoms of the material placing areas;
the centrifugal filter device is fixedly connected with the lower surface of the cylindrical discharging device, an output shaft of the motor is fixedly connected with the centrifugal filter device, a transition hole corresponding to the leak hole is formed in the centrifugal filter device in a penetrating mode, the centrifugal filter device is arrayed along the circumferential direction and a plurality of spiral grooves extending along the axial direction, a spiral pipe with holes at two ends is fixedly connected to each spiral groove, a plurality of centrifugal holes are distributed on the surface of each spiral pipe, the hole in the upper end of each spiral pipe corresponds to the transition hole, a filter blocking net is arranged at the hole position of the lower end of each spiral pipe, a filter space is reserved between the centrifugal filter device and the inner wall of the shell, and a slag discharging box is fixedly connected to the bottom of the centrifugal filter device.
Optionally, the diameters of the transition holes in each serpentine pipe are different, the accommodating groove is fixedly connected with a second bearing, and the motor is fixedly connected with the inner ring of the second bearing.
Optionally, the cylindrical discharging device is provided with three baffles arrayed along the circumferential direction, the three baffles are fixedly connected with the outer wall of the containing groove to form three discharging areas, an opening of each discharging area is hinged with a cover plate, and a handle is arranged on each cover plate.
Optionally, the filtering blocking net is provided with three rings of intercepting rings, a gap is reserved between each ring of intercepting rings, and each ring of intercepting rings is connected through the arranged connecting rod.
Optionally, the inner wall of the shell is fixedly connected with protection plates, a filter plate is fixedly connected between the protection plates and close to the end cover, an accommodating space is formed between the filter plate and the protection plates, and the centrifugal filter device is arranged in the accommodating space.
Optionally, an air outlet is formed in the shell, a dust removal filter screen is arranged at the air outlet, the dust removal filter screen is fixedly connected with the negative pressure machine, and the position of the protection plate relative to the air outlet is provided with a hole.
Optionally, a plurality of lifting lugs are arranged on the outer surface of the shell.
Optionally, a bolt seat is arranged at one end of the shell opposite to the hinged part, a bolt is inserted into the bolt seat, and one end of the end cover departing from the hinged part is fixedly connected with the shell through the bolt and the bolt seat.
The invention has the beneficial effects that: the invention provides a powder mixing device for magnesium matrix alloy, wherein the centrifugal filtering device is used for centrifugal filtering, doped zinc and zirconium metal powder is separated from impurity metal through the centrifugal device, the centrifugal filtering device is fixedly connected with a cylindrical discharging device, and the centrifugal filtering device and the cylindrical discharging device are driven by a motor to rotate relative to a shell under the action of the motor, a first bearing and the first bearing; and the blowing district passes through the leak orifice and directly communicates with the coiled pipe on the centrifugal filter device, make each blowing district pass through the coiled pipe under the effect of centrifugal force, a plurality of centrifugal holes of distribution on the coiled pipe, make the granule of metal zinc or metal zirconium pass through the centrifugal hole, wherein, the diameter of centrifugal hole is less than the particle diameter of impurity metal, therefore, metal zinc or metal zirconium granule are thrown away outside the coiled pipe, because whole coiled pipe also rotates thereupon at centrifugal filter device pivoted in-process, consequently, metal zinc or metal zirconium granule can be in the same place along with the pivoted frequency mixture, ensure the misce bene. The mixed metal particles enter the smelting furnace through a flow hole arranged on an end cover at the lower end of the shell, and are further melted and mixed.
According to the invention, the existing feeding device and the mixing device are fused, so that double effects of feeding and mixing are realized, impurity metals are separated from metal zinc or metal zirconium particles under the action of centrifugal force, the purity of metals in the process of mixing ZK60 magnesium matrix alloy powder is ensured, the impurity metals are prevented from being mixed and melted together, and the quality of ZK60 magnesium matrix alloy is further ensured.
Drawings
FIG. 1 is a schematic view showing the overall structure of a powder mixing apparatus for a magnesium base alloy according to the present invention;
FIG. 2 is a schematic structural view of the feeding device in FIG. 1;
FIG. 3 is a schematic structural view of an upper cover plate of the discharging device of the present invention;
FIG. 4 is a schematic structural view of a serpentine tube of the present invention;
fig. 5 is a bottom view of a filtration barrier on a serpentine tube of the present invention.
The device comprises a shell 1, a first bearing 2, an end cover 3, an outflow hole 4, a discharging device 5, a discharging area 5-1, a leakage hole 5-2, a containing groove 6, a motor 7, a centrifugal filtering device 8, a transition hole 8-1, a snake-shaped groove 8-2, a snake-shaped pipe 9-1, a centrifugal hole 9-1, a filtering barrier net 10, a filtering space 11, a slag discharging box 12, a second bearing 13, a partition plate 14, a cover plate 15, a handle 16, a dust removing filter net 17, a negative pressure machine 18, a lifting lug 19, a bolt seat 20 and a bolt 21.
Detailed Description
One embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the invention is not limited to the embodiment.
In the description of the present invention, it is to be understood that the terms "lateral", "longitudinal", "vertical", "edge", "side end", "upper", "lower", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing technical solutions of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1, 2, 4, and 5, the powder mixing device for a magnesium base alloy includes: the device comprises a shell 1, a cylindrical discharging device 5 and a centrifugal filtering device 8, wherein the upper end and the lower end of the shell 1 are both provided with openings, the opening at the upper end is fixedly connected with a first bearing 2, the opening at the lower end is hinged with an end cover 3, the bottom of the end cover 3 is provided with a flow-out hole 4, and the flow-out hole 4 is connected with a smelting furnace and used for smelting mixed metal powder; the cylindrical material placing device 5 is fixedly connected with the inner ring of the first bearing 2, a containing groove 6 is formed in the center of the bottom of the material placing device 5, a motor 7 is arranged in the containing groove 6, the motor 7 is rotatably connected with the containing groove 6, the material placing device 5 is provided with a plurality of material placing areas 5-1 for placing different metal powders, and the bottom of each material placing area 5-1 is provided with a leakage hole 5-2; the centrifugal filter device 8 is fixedly connected with the lower surface of the cylindrical discharging device 5, an output shaft of the motor 7 is fixedly connected with the centrifugal filter device 8, the centrifugal filter device 8 is provided with a transition hole 8-1 corresponding to the leak hole 5-2 in a penetrating way, the centrifugal filter device 8 is arrayed along the circumferential direction and is provided with a plurality of snake-shaped grooves 8-2 extending along the axial direction, the snake-shaped grooves 8-2 are fixedly connected with a snake-shaped pipe 9 with holes at two ends, the surface of the snake-shaped pipe 9 is provided with a plurality of centrifugal holes 9-1, the hole at the upper end of each snake-shaped pipe 9 is correspondingly connected with the transition hole 8-1, the hole at the lower end is provided with a filter screen 10, the centrifugal filter device 8 and the inner wall of the shell 1 are provided with a filter space 11, and the bottom of the centrifugal filter device 8 is fixedly connected with a slag discharging box 12. The arrangement of the coiled pipe 9 ensures that when the metal powder is acted by centrifugal force in the longitudinal direction, the contact between the metal powder and the coiled pipe 9 is increased, the centrifugal force is ensured to act on the metal powder to the maximum extent, and the metal zinc or metal zirconium particles can pass through the centrifugal holes to the maximum extent. The first bearing and the second bearing are arranged to ensure that the discharging device and the centrifugal filtering device are stable in the rotating process of the shell and the motor, so that the rotating force is effectively acted on the centrifugal filtering device. Wherein, the diameter of the transition hole 8-1 on each serpentine pipe 9 is different, the holding groove 6 is fixedly connected with a second bearing 13, and the motor 7 is fixedly connected with the inner ring of the second bearing 13.
The invention provides a powder mixing device for magnesium matrix alloy, wherein the centrifugal filtering device is used for centrifugal filtering, doped zinc and zirconium metal powder is separated from impurity metal through the centrifugal device, the centrifugal filtering device is fixedly connected with a cylindrical discharging device, and the centrifugal filtering device and the cylindrical discharging device are driven by a motor to rotate relative to a shell under the action of the motor, a first bearing and the first bearing; and the blowing district passes through the leak orifice and directly communicates with the coiled pipe on the centrifugal filter device, make each blowing district pass through the coiled pipe under the effect of centrifugal force, a plurality of transition holes of distributing on the coiled pipe, make the granule of metal zinc or metal zirconium pass through the transition hole, wherein, the diameter in transition hole is less than the particle diameter of impurity metal, therefore, metal zinc or metal zirconium granule are thrown away outside the coiled pipe, because whole coiled pipe also rotatory thereupon at centrifugal filter device pivoted in-process, therefore, metal zinc or metal zirconium granule can be in the same place along with the pivoted frequency mixture, ensure the misce bene. The mixed metal particles enter the smelting furnace through a flow hole arranged on an end cover at the lower end of the shell, and are further melted and mixed.
According to the invention, the existing feeding device and the mixing device are fused to realize double functions of feeding and mixing, impurity metals are ensured to be separated from metal zinc or metal zirconium particles under the action of centrifugal force, the purity of metals in the process of mixing ZK60 magnesium matrix alloy powder is ensured, the impurity metals are prevented from being mixed and melted together, and the quality of ZK60 magnesium matrix alloy is further ensured.
Further, referring to fig. 2 and 3, three partition plates 14 are arrayed on the cylindrical material placing device 5 along the circumferential direction, the three partition plates 14 are fixedly connected with the outer wall of the accommodating groove 6 to form three material placing areas 5-1, a cover plate 15 is hinged to an opening of the material placing area 5-1, and a handle 16 is arranged on the cover plate. The cover plate is used for preventing the materials from being thrown out along with the rotation of the feeding device, and the handle 16 is used for facilitating the opening or closing of the cover plate by a user.
Further, referring to fig. 5, the filtration barrier 10 is provided with three rings of interception rings, with a gap left between each ring and each ring connected by the provided connecting rods.
Further, referring to fig. 1, the inner wall of the housing 1 is fixedly connected with a protection plate, a filter plate is fixedly connected between the protection plates near the end cover 3, an accommodation space is formed between the filter plate and the protection plate, and the centrifugal filter device 8 is arranged in the accommodation space. The protection board prevents the thrown metal particles from rubbing the inner wall of the shell, the inner wall of the shell is protected from being extruded, the filter board is used for further screening mixed metal particles, the metal particles flowing out from the outflow hole are ensured to be uniform and stable, and the accommodating space is the same as the filtering space 11 and is used for mixing the metal particles.
Further, referring to fig. 1, an air outlet is formed in the housing 1, a dust removal filter screen 17 is disposed at the air outlet, the dust removal filter screen 17 is fixedly connected with the negative pressure machine 18, and a hole is formed in the protective plate at a position corresponding to the air outlet. The negative pressure is generated by the negative pressure machine 18, the metal dust generated by the metal in the shell under the centrifugal action is absorbed, and the dust removing filter screen 17 prevents the metal particles from being sucked into the negative pressure machine 18.
Further, referring to fig. 1, a plurality of lifting lugs 19 are provided on the outer surface of the housing 1.
Further, referring to fig. 1, a pin base 20 is disposed at an end of the housing 1 opposite to the hinge, a pin 21 is inserted into the pin base 20, and an end of the end cover 3 away from the hinge is fixedly connected to the housing 1 through the pin 21 and the pin base 20.
The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any modifications that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (8)
1. A powder mixing device for a magnesium base alloy, comprising:
the device comprises a shell (1), wherein the upper end and the lower end of the shell (1) are both provided with openings, a first bearing (2) is fixedly connected to the opening at the upper end, an end cover (3) is hinged to the opening at the lower end, and an outflow hole (4) is formed in the bottom of the end cover (3);
the cylindrical material placing device (5) is fixedly connected with the inner ring of the first bearing (2), a containing groove (6) is formed in the center of the bottom of the material placing device (5), a motor (7) is arranged in the containing groove (6), the motor (7) is rotationally connected with the containing groove (6), the material placing device (5) is provided with a plurality of material placing areas (5-1) for placing different metal powders, and the bottom of each material placing area (5-1) is provided with a leakage hole (5-2);
a centrifugal filter device (8) fixedly connected with the lower surface of the cylindrical discharging device (5), an output shaft of a motor (7) is fixedly connected with the centrifugal filter device (8), the centrifugal filter device (8) is provided with a plurality of serpentine grooves (8-2) which are arrayed along the circumferential direction and extend along the axial direction, serpentine pipes (9) with openings at two ends are fixedly connected on the serpentine grooves (8-2), a plurality of centrifugal holes (9-1) are distributed on the surface of the serpentine pipes (9), the opening at the upper end of each serpentine pipe (9) is correspondingly connected with the transition holes (8-1), a filter screen (10) is arranged at the opening at the lower end, and a filter space (11) is reserved between the centrifugal filter device (8) and the inner wall of the shell (1), the bottom of the centrifugal filtering device (8) is fixedly connected with a slag discharging box (12).
2. The magnesium base alloy powder mixing device according to claim 1, wherein the diameter of the transition hole (8-1) above each of the serpentine tubes (9) is different, the holding groove (6) is fixedly connected with a second bearing (13), and the motor (7) is fixedly connected with an inner ring of the second bearing (13).
3. The powder mixing device for the magnesium matrix alloy according to claim 2, wherein three partition plates (14) are arranged on the cylindrical discharging device (5) along the circumferential direction, the three partition plates (14) are fixedly connected with the outer wall of the accommodating groove (6) and form three discharging areas (5-1), a cover plate (15) is hinged to an opening of each discharging area (5-1), and a handle (16) is arranged on each cover plate.
4. A powder mixing device for magnesium base alloy according to claim 3, wherein said filtering screen (10) is provided with three intercepting rings, each ring having a gap therebetween and being connected by means of connecting rods.
5. The powder mixing device for magnesium base alloy according to claim 3, wherein the inner wall of the housing (1) is fixedly connected with protective plates, filter plates are fixedly connected between the protective plates near the end cap (3), an accommodating space is formed between the filter plates and the protective plates, and the centrifugal filter device (8) is arranged in the accommodating space.
6. The magnesium-based alloy powder mixing device according to claim 5, wherein the housing (1) is provided with an air outlet, the air outlet is provided with a dust-removing filter screen (17), the dust-removing filter screen (17) is fixedly connected with a negative pressure machine (18), and the position of the protection plate relative to the air outlet is provided with an opening.
7. A powder mixing apparatus for magnesium matrix alloys according to claim 1, wherein the housing (1) is provided with lugs (19) on the outer surface thereof.
8. The powder mixing device for the magnesium matrix alloy according to claim 1, wherein a pin base (20) is arranged at one end of the housing (1) opposite to the hinge joint, a pin (21) is inserted into the pin base (20), and one end of the end cover (3) away from the hinge joint is fixedly connected with the housing (1) through the pin (21) and the pin base (20).
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| CN202111038646.5A CN113731217B (en) | 2021-09-06 | 2021-09-06 | Powder mixing arrangement for magnesium matrix alloy |
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| CN202111038646.5A CN113731217B (en) | 2021-09-06 | 2021-09-06 | Powder mixing arrangement for magnesium matrix alloy |
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| CN113731217A CN113731217A (en) | 2021-12-03 |
| CN113731217B true CN113731217B (en) | 2022-08-19 |
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2021
- 2021-09-06 CN CN202111038646.5A patent/CN113731217B/en active Active
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| JP2003126680A (en) * | 2001-10-29 | 2003-05-07 | Nara Kikai Seisakusho:Kk | Fluidizing apparatus for powder and granular material |
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