CN112916860A - Be applied to spherical metal powder preparation of 3D printing and use differential centrifugal device - Google Patents
Be applied to spherical metal powder preparation of 3D printing and use differential centrifugal device Download PDFInfo
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- CN112916860A CN112916860A CN202110095469.8A CN202110095469A CN112916860A CN 112916860 A CN112916860 A CN 112916860A CN 202110095469 A CN202110095469 A CN 202110095469A CN 112916860 A CN112916860 A CN 112916860A
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- Prior art keywords
- movably connected
- gear
- rod
- metal powder
- differential
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/10—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying using centrifugal force
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/065—Spherical particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
Abstract
The invention relates to the technical field of metal powder preparation, and discloses a differential centrifugal device for spherical metal powder preparation, which is applied to 3D printing and comprises a rotary gear disc, wherein a gear shaft is movably connected below the rotary gear disc, a differential gear set is movably connected on the gear shaft, a deflector rod is movably connected in the middle of the differential gear set, and the rotating speed of a molten pool can be changed when metal powder of different materials is prepared through the matching of the rotary gear disc, the gear shaft, the differential gear set, the deflector rod, a rotating wheel and a mounting rack, so that the applicability of the device is wider, and the eccentric wheel rod and the arc-shaped rod are used. The cooperation of arc base and spring axle for the fixture block breaks away from the draw-in groove, and through the cooperation of electromagnetism ejector pad, push rod, movable block, make pawl and ratchet separately, the pond of will dissolving is conveniently taken out, clears up and maintains, avoids the metal liquid drop to block up the liquid runner, has further promoted device's practicality.
Description
Technical Field
The invention relates to the technical field of metal powder preparation, in particular to a differential centrifugal device for preparing spherical metal powder, which is applied to 3D printing.
Background
The application of the powder material in the fields of automobiles, metallurgy, aerospace, aviation, transportation, biomedicine and the like is more and more extensive, and particularly with the rapid development of a 3D printing technology, the demand of the manufacturing field on the metal powder is more urgent, wherein the metal powder prepared by a rotary centrifugal method has become an important method for preparing metal or alloy powder at present due to the unique particle size, shape controllability and higher production efficiency.
But among the existing centrifugal equipment, centrifugal force is invariable, and the centrifugal force is not used differently for the metal liquid drops with different fluidity, so that the difference of the produced metal powder is larger, and meanwhile, the molten pool structure which needs to be cleaned and maintained frequently is not easy to disassemble and assemble, so that the working difficulty of cleaning and maintaining the device is increased, and the use is very inconvenient.
In order to solve the above problems, the inventor provides a differential centrifugal device for preparing spherical metal powder, which is applied to 3D printing, and has the advantages of capability of changing the centrifugal force, simple assembly and disassembly of a molten pool, and convenience in cleaning and maintenance of the molten pool.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: a differential centrifugal device for preparing spherical metal powder applied to 3D printing comprises a rotary gear disc, a gear shaft is movably connected below the rotary gear disc, a differential gear set is movably connected on the gear shaft, a shifting rod is movably connected in the middle of the differential gear set, a movable shaft is movably connected below the shifting rod, a rotating wheel is movably connected below the movable shaft, an installation frame is movably connected above the rotary gear disc, an eccentric wheel rod is movably connected inside the installation frame, an arc-shaped rod is movably connected at one end inside the eccentric wheel rod, an arc-shaped base is movably connected outside the arc-shaped rod, a spring shaft is movably connected at one end inside the arc-shaped rod, a clamping block is movably connected inside the spring shaft, a dissolving tank is movably connected above the installation frame, and a liquid flow channel is arranged on the side wall of the dissolving tank, the inboard swing joint of mounting bracket has the fixed block, the inside swing joint of fixed block has the electromagnetism ejector pad, the below swing joint of electromagnetism ejector pad has the push rod, the below swing joint of push rod has the movable block, the outside swing joint of movable block has the pawl.
Preferably, the rotating gear disc is provided with an inner ring gear and an outer ring gear, the differential gear set comprises a large gear and a small gear, the large gear is meshed with the inner ring gear of the rotating gear disc, and the small gear is meshed with the outer side gear.
Preferably, the gear shaft is provided with a shaft sleeve outside the middle part of the differential gear set, and the deflector rod is movably connected with the shaft sleeve.
Preferably, the outer side of the rotating wheel is provided with a fixed frame, the fixed frame is fixedly connected with the movable shaft, and the contact part of the inner side of the fixed frame and the rotating wheel is provided with two rollers.
Preferably, the eccentric wheel rod comprises an eccentric wheel and a connecting rod, one end of the connecting rod is movably connected with the eccentric wheel, and the other end of the connecting rod is movably connected with the arc-shaped rod.
Preferably, a diversion trench is arranged above the dissolving tank, a liquid outlet is arranged on the side surface of the dissolving tank and at the tail end of the liquid flow passage, and a ratchet matched with the pawl is arranged at the position, corresponding to the fixed block, below the dissolving tank.
Preferably, a group of magnets are arranged between the electromagnetic push block and the push rod, and a return spring is arranged between the lower part of the movable block and the fixed block.
Advantageous effects
Compared with the prior art, the invention provides a differential centrifugal device for preparing spherical metal powder applied to 3D printing, which has the following beneficial effects:
1. this be applied to spherical metal powder preparation of 3D printing and use differential centrifugal device, through rotating the toothed disc, the gear shaft, differential gear group, the driving lever, the runner, the cooperation of mounting bracket, when making the metal powder of different materials, the rotational speed of molten bath can change, make the suitability of this equipment wider, it is poor to have avoided the metal powder sphericity that the rotational speed does not enough lead to the fact, the problem of unqualified quality, the rotational speed has also been avoided too fast, the metal liquid drop is thrown away from apart from big, make the inconvenient problem of collecting of metal powder.
2. This be applied to spherical metal powder preparation of 3D printing and use differential centrifugal device, through eccentric wheel pole, arc pole. The cooperation of arc base and spring axle for the fixture block breaks away from the draw-in groove, and through the cooperation of electromagnetism ejector pad, push rod, movable block, make pawl and ratchet separately, the pond of will dissolving is conveniently taken out, clears up and maintains, avoids the metal liquid drop to block up the liquid runner, has further promoted device's practicality.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a bottom plan view of the portion of the rotating gear plate of the present invention;
FIG. 3 is an enlarged view of the shifter lever portion of FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of the portion A of FIG. 1 according to the present invention;
FIG. 5 is an enlarged view of the portion B of FIG. 1 according to the present invention;
FIG. 6 is an enlarged schematic view of the molten bath structure of FIG. 1 according to the present invention.
In the figure: 1. rotating the gear plate; 2. a gear shaft; 3. a differential gear set; 4. a deflector rod; 5. a movable shaft; 6. a rotating wheel; 7. a mounting frame; 8. an eccentric wheel lever; 9. an arcuate bar; 10. an arc-shaped base; 11. a spring shaft; 12. a clamping block; 13. dissolving in a pool; 14. a liquid flow passage; 15. a fixed block; 16. an electromagnetic push block; 17. a push rod; 18. a movable block; 19. a pawl.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a differential centrifugal device for preparing spherical metal powder for 3D printing includes a rotary gear disc 1, a gear shaft 2 movably connected below the rotary gear disc 1, a differential gear set 3 movably connected on the gear shaft 2, an inner ring gear and an outer ring gear arranged on the rotary gear disc 1, the differential gear set 3 including a large gear and a small gear, the large gear meshed with the inner ring gear of the rotary gear disc 1, the small gear meshed with the outer ring gear, a shift lever 4 movably connected in the middle of the differential gear set 3, a shaft sleeve arranged on the outer side of the middle portion of the gear shaft 2 located in the differential gear set 3, the shift lever 4 movably connected with the shaft sleeve, a movable shaft 5 movably connected below the shift lever 4, a rotary wheel 6 movably connected below the movable shaft 5, a fixed mount arranged on the outer side of the rotary wheel 6 and fixedly connected with the movable shaft 5, and the contact part of the inner side of the fixed mount and the rotating wheel 6 is provided with two rollers, the upper part of the rotating gear disc 1 is movably connected with a mounting frame 7, the inner side of the mounting frame 7 is movably connected with an eccentric wheel rod 8, the eccentric wheel rod 8 comprises an eccentric wheel and a connecting rod, one end of the connecting rod is movably connected with the eccentric wheel, the other end of the connecting rod is movably connected with an arc-shaped rod 9, the outer side of the arc-shaped rod 9 is movably connected with an arc-shaped base 10, one end of the inner side of the arc-shaped rod 9 is movably connected with a spring shaft 11, the inner side of the spring shaft 11 is movably connected with a clamping block 12, the upper part of the mounting frame 7 is movably connected with a dissolving tank 13, the side wall of the dissolving tank 13 is provided with a liquid flow channel 14, the liquid flow channel 14 is uniformly distributed in the dissolving tank 13, the upper part of the dissolving tank 13 is provided, the inboard swing joint of mounting bracket 7 has fixed block 15, the inside swing joint of fixed block 15 has electromagnetism ejector pad 16, the below swing joint of electromagnetism ejector pad 16 has push rod 17, and be provided with a set of magnet between electromagnetism ejector pad 16 and the push rod 17, the below swing joint of push rod 17 has movable block 18, be provided with the answer spring between the below of movable block 18 and the fixed block 15, the outside swing joint of movable block 18 has pawl 19, the below of molten bath 13 and the corresponding position of fixed block 15 are provided with the ratchet with pawl 19 looks adaptation.
The working process and principle are as follows: after the device is assembled, firstly, the eccentric wheel of the eccentric wheel rod 8 rotates, the arc rod 9 is driven to rotate on the arc base 10 through the matching of the arc base 10 of the eccentric wheel rod 8, the spring shaft 11 is pushed to move inwards, the spring shaft 11 pushes the clamping block 12 to enter the clamping groove below the dissolving tank 13, then metal in the crucible is heated and melted under the protection of inert gas, melted metal liquid flows into the dissolving tank 13 through the diversion trench above the dissolving tank 13, the process is carried out in an anaerobic environment to prevent metal liquid drops from being oxidized, when the fluidity of the metal liquid drops is good, the centrifugal force required by the metal liquid drops to be thrown out is relatively small, the driving device is started to drive the gear shaft 2 to rotate, at the moment, the pinion on the differential gear set 3 is meshed with the outer gear ring of the rotating gear disc 1, so that the rotating speed of the mounting rack 7 driven by the rotating gear disc 1 is relatively slow, the mounting, generating centrifugal force, throwing the metal liquid drops out of a liquid outlet on the side of the dissolving tank 13 along the liquid flow channel 14, forming spherical metal liquid drops under the action of surface tension, cooling and solidifying spherical metal powder, driving the rotating wheel 6 to rotate when the liquidity of the metal liquid drops is poor and the centrifugal force required by the metal liquid drops is relatively large, driving the movable shaft 5 to move left and right through rollers and fixed frames on both sides when the rotating wheel 6 rotates, driving the gear shaft 2 to move right through the deflector rod 4 when the movable shaft 5 moves right, enabling the large gear on the differential gear set 3 to be meshed with the inner gear ring of the rotating gear disc 1, driving the fixed frame 7 to accelerate the rotating speed of the rotating gear disc 1 at the moment, namely accelerating the rotating speed of the dissolving tank 13, generating large centrifugal force, enabling the metal liquid drops with poor liquidity to be also thrown out of the liquid flow channel 14, and cooling to form spherical metal powder, through the cooperation of rotating toothed disc 1, differential gear set 3, driving lever 4, runner 6, mounting bracket 7 for when preparing the metal powder of different materials, the rotational speed of dissolving tank 13 can change, and it is poor to have avoided the not enough metal powder sphericity that causes of rotational speed, the unqualified problem of quality, makes the suitability of this equipment wider.
The molten pool 13 needs to be cleaned in time after being used, so as to prevent metal liquid drops from blocking a liquid flow channel 14, the later-stage use is influenced, at the moment, the eccentric wheel rod 8 continues to rotate, the gear outside the spring shaft 11 is matched to drive the clamping block 12 to move outwards, the clamping block 12 is separated from the clamping groove, then the electromagnetic pushing block 16 is electrified, according to the magnetic effect of current, the electromagnetic pushing block 16 can generate a magnetic field opposite to the magnet below, the pushing rod 17 and the movable block 18 are pushed to move downwards, and when the movable block 18 moves downwards, the pawl 19 is driven to rotate around the hinged point, so that the pawl 19 is separated from the ratchet on the side wall of the molten pool 13, then the molten pool 13 can be taken out, the cleaning and the maintenance of the molten pool 13 are facilitated, and the practicability of the device is further improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a be applied to spherical metal powder preparation of 3D printing and use differential centrifugal device, includes rotating gear dish (1), its characterized in that: the lower part of the rotating gear disc (1) is movably connected with a gear shaft (2), the gear shaft (2) is movably connected with a differential gear set (3), the middle of the differential gear set (3) is movably connected with a shift lever (4), the lower part of the shift lever (4) is movably connected with a movable shaft (5), the lower part of the movable shaft (5) is movably connected with a rotating wheel (6), the upper part of the rotating gear disc (1) is movably connected with a mounting frame (7), the inner side of the mounting frame (7) is movably connected with an eccentric wheel rod (8), one end of the inner side of the eccentric wheel rod (8) is movably connected with an arc-shaped rod (9), the outer side of the arc-shaped rod (9) is movably connected with an arc-shaped base (10), one end of the inner side of the arc-shaped rod (9) is movably connected with a spring shaft (11), and the, the top swing joint of mounting bracket (7) has dissolving tank (13), be provided with liquid flow channel (14) on the lateral wall of dissolving tank (13), the inboard swing joint of mounting bracket (7) has fixed block (15), the inside swing joint of fixed block (15) has electromagnetism ejector pad (16), the below swing joint of electromagnetism ejector pad (16) has push rod (17), the below swing joint of push rod (17) has movable block (18), the outside swing joint of movable block (18) has pawl (19).
2. The differential centrifugal device for preparing spherical metal powder applied to 3D printing according to claim 1, is characterized in that: the rotary gear disc (1) is provided with an inner ring gear and an outer ring gear, the differential gear set (3) comprises a large gear and a small gear, the large gear is meshed with the inner ring gear of the rotary gear disc (1), and the small gear is meshed with the outer ring gear.
3. The differential centrifugal device for preparing spherical metal powder applied to 3D printing according to claim 1, is characterized in that: the gear shaft (2) is provided with a shaft sleeve at the outer side of the middle part of the differential gear set (3), and the shifting rod (4) is movably connected with the shaft sleeve.
4. The differential centrifugal device for preparing spherical metal powder applied to 3D printing according to claim 1, is characterized in that: the outer side of the rotating wheel (6) is provided with a fixed frame which is fixedly connected with the movable shaft (5), and the contact part of the inner side of the fixed frame and the rotating wheel (6) is provided with two rollers.
5. The differential centrifugal device for preparing spherical metal powder applied to 3D printing according to claim 1, is characterized in that: the eccentric wheel rod (8) comprises an eccentric wheel and a connecting rod, one end of the connecting rod is movably connected with the eccentric wheel, and the other end of the connecting rod is movably connected with the arc-shaped rod (9).
6. The differential centrifugal device for preparing spherical metal powder applied to 3D printing according to claim 1, is characterized in that: a diversion trench is arranged above the dissolving tank (13), a liquid outlet is arranged on the side surface of the dissolving tank (13) and at the tail end of the liquid flow channel (14), and ratchets matched with the pawls (19) are arranged below the dissolving tank (13) and at the corresponding positions of the fixed blocks (15).
7. The differential centrifugal device for preparing spherical metal powder applied to 3D printing according to claim 1, is characterized in that: a group of magnets are arranged between the electromagnetic push block (16) and the push rod (17), and a return spring is arranged between the lower part of the movable block (18) and the fixed block (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110095469.8A CN112916860A (en) | 2021-01-25 | 2021-01-25 | Be applied to spherical metal powder preparation of 3D printing and use differential centrifugal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110095469.8A CN112916860A (en) | 2021-01-25 | 2021-01-25 | Be applied to spherical metal powder preparation of 3D printing and use differential centrifugal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112916860A true CN112916860A (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110095469.8A Withdrawn CN112916860A (en) | 2021-01-25 | 2021-01-25 | Be applied to spherical metal powder preparation of 3D printing and use differential centrifugal device |
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| CN (1) | CN112916860A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117359992A (en) * | 2023-12-04 | 2024-01-09 | 山西炭科新材科技股份有限公司 | Forming device is used in production of column active carbon |
-
2021
- 2021-01-25 CN CN202110095469.8A patent/CN112916860A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117359992A (en) * | 2023-12-04 | 2024-01-09 | 山西炭科新材科技股份有限公司 | Forming device is used in production of column active carbon |
| CN117359992B (en) * | 2023-12-04 | 2024-03-05 | 山西炭科新材科技股份有限公司 | Forming device is used in production of column active carbon |
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Application publication date: 20210608 |
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| WW01 | Invention patent application withdrawn after publication |