CN112409024A - Automatic lifting coating platform for carbon graphite coating - Google Patents
Automatic lifting coating platform for carbon graphite coating Download PDFInfo
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- CN112409024A CN112409024A CN202011285195.0A CN202011285195A CN112409024A CN 112409024 A CN112409024 A CN 112409024A CN 202011285195 A CN202011285195 A CN 202011285195A CN 112409024 A CN112409024 A CN 112409024A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/87—Ceramics
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/20—Graphite
- C01B32/21—After-treatment
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5053—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials non-oxide ceramics
- C04B41/5057—Carbides
- C04B41/5059—Silicon carbide
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Abstract
The invention relates to the technical field of antioxidant graphite material coating machinery, in particular to an automatic lifting coating platform for a carbon graphite coating, which comprises a mounting plate, a coating lifting platform, a lifting driving mechanism and a stirring and cleaning mechanism, wherein elemental silicon powder and alumina powder react to form silica gas which is conveyed to the coating lifting platform through a pipeline to coat a graphite workpiece on the coating lifting platform, and in the coating process, the stirring and cleaning mechanism is used in cooperation with the descending of the coating lifting platform to ensure that the graphite workpiece rotates around an axial direction in the whole reaction process to achieve uniform coating, and in addition, the stirring and cleaning mechanism can continuously clean the surface layer of the graphite workpiece in the coating process to achieve the cleaning and adhesion strength of the coating surface, so that the technical problem of uneven coating of the conventional graphite workpiece is solved.
Description
Technical Field
The invention relates to the technical field of antioxidant graphite material coating machinery, in particular to an automatic lifting coating platform for a carbon graphite coating.
Background
The graphite material is a basic material with various excellent characteristics, and particularly, the graphite material can still ensure the sufficient product performance under the high temperature condition of more than 1200 ℃, which cannot be realized by common metal materials. However, the graphite material has a biggest defect that the graphite material cannot realize the above functions due to oxidation in an oxygen-containing environment, and therefore, the graphite material is subjected to surface modification based on a coating technology, so that the graphite material can normally exert excellent characteristics in the oxygen-containing environment.
The mainstream graphite surface modification technology at present is CVD (chemical vapor deposition) coating method, and a compact independent coating structure can be generated on the graphite surface by the method, so that the graphite material is isolated from the external oxygen-containing environment, and the graphite material is protected.
The problems and the defects of the existing coating technology are mainly that the coating of the graphite material is prepared by the CVD technology, the technological process is complex, the cost of raw materials is high, the graphite coating structure with higher uniformity can be obtained, but the comprehensive cost is higher, the cost performance is insufficient in the application environment of the middle-end and low-end antioxidant graphite materials, and the coating is difficult to be widely applied.
In chinese patent with patent application No. CN201210374319.1, a method for preparing a silicon carbide coating on a graphite surface is disclosed, which comprises: placing a graphite crucible filled with solid silicon materials in a high-temperature graphitization furnace, placing a graphite matrix on a graphite support in the graphite crucible, and utilizing direct reaction of silicon vapor and carbon on the surface of the graphite matrix to generate a silicon carbide coating; and secondly, placing the graphite substrate with the silicon carbide coating on the surface in a chemical vapor deposition furnace, and cracking the surface of the silicon carbide coating on the surface of the graphite substrate to generate a CVD (chemical vapor deposition) silicon carbide coating.
Although the technical solution disclosed in the above patent solves the problem of forming an oxidation-resistant silicon carbide coating on the surface of a graphite workpiece by using silicon vapor, the technical solution does not disclose what kind of coating platform is still applied to the coating process of the graphite workpiece.
Disclosure of Invention
Aiming at the problems, the invention provides an automatic lifting coating platform for a carbon graphite coating, wherein elemental silicon powder and alumina powder react to form silica gas which is conveyed to the coating lifting platform through a pipeline to coat a graphite workpiece on the coating lifting platform, and in the coating process, the stirring and cleaning mechanism is used for rotating the graphite workpiece around the axial direction in the whole reaction process in cooperation with the descending of the coating lifting platform to achieve uniform coating, and the stirring and cleaning mechanism can also continuously clean the surface layer of the graphite workpiece in the coating process to achieve the cleaning and adhesion strength of the coating surface, so that the technical problem of uneven coating of the conventional graphite workpiece is solved.
In order to achieve the purpose, the invention provides the following technical scheme:
an automatic lifting coating platform for carbon graphite coating comprises:
the mounting plate is horizontally and fixedly arranged;
the coating lifting platform is arranged right above the mounting plate in parallel with the mounting plate, bears a graphite workpiece for coating, and is embedded with a plurality of rolling balls at the contact part of the coating lifting platform and the graphite workpiece;
the lifting driving mechanism drives the coating lifting platform to lift along the vertical direction, and comprises a driving assembly and a lifting assembly, and the driving assembly drives the coating lifting platform to lift along the vertical direction through the lifting assembly; and
stir and clean the mechanism, stir and clean the mechanism install in on the coating lift platform, should stir and clean the mechanism including stirring the subassembly and cleaning the subassembly, and should stir and clean the mechanism along with the decline of coating lift platform, stir the subassembly and drive through the friction graphite work piece on the coating lift platform is around axial autogyration, synchronous, it is right to clean the subassembly the lateral wall of graphite work piece cleans the processing.
As an improvement, the drive assembly comprises:
a drive motor;
the driving motor shaft is in transmission connection with the driving motor;
the driving gear is arranged on a shaft of the driving motor and synchronously rotates along with the shaft of the driving motor;
the gear ring is rotatably arranged above the coating lifting platform, and external teeth on the outer ring of the gear ring are correspondingly matched with the driving gear; and
and the transmission gear is arranged on the inner ring of the gear ring and is correspondingly matched with the inner teeth on the inner ring of the gear ring.
As a modification, the internal teeth on the gear ring are arranged in a missing tooth mode, and the internal teeth are composed of tooth parts and defect parts which are arranged intermittently.
As an improvement, the lift assembly comprises:
the screw rods are arranged in one-to-one correspondence with the transmission gears and are rotatably arranged on the mounting plate; and
the lead screw nut is sleeved on the corresponding lead screw and is arranged on the coating lifting platform, and the lead screw rotates to drive the coating lifting platform to move up and down through the lead screw nut.
As an improvement, a material rest used for supporting a graphite workpiece is arranged at the position of the center line of the coating lifting platform, a hollow hole is formed in the material rest, a plurality of air holes are uniformly distributed in the position, facing the material rest, of the coating lifting platform, and the ball is embedded in the top end face of the material rest.
As an improvement, the toggle assembly comprises:
the rotary sleeves are rotatably sleeved on the corresponding lead screws and are rotatably arranged on the coating lifting platform, two groups of rotary sleeves are arranged, and the rotary sleeves are in friction contact with the graphite workpiece to drive the graphite workpiece to rotate;
the rotary driving units are arranged in one-to-one correspondence with the rotary sleeves, and drive the rotary sleeves to rotate along with the lifting of the coating lifting platform; and
the clamping rollers and the two groups of rotating sleeves are arranged in a triangular mode, the clamping rollers are rotatably installed on the coating lifting platform, and the clamping rollers press the graphite workpiece to abut against the rotating sleeves by means of the bottom elastic adjusting unit.
As an improvement, the rotation driving unit includes:
the driven bevel gear is mounted at the top of the rotating sleeve;
the driving bevel gear is rotatably arranged on one side of the driven bevel gear through a vertical mounting plate, and the driving bevel gear is meshed with the driven bevel gear;
the starting gear and the driving bevel gear are coaxially arranged and are arranged on the mounting vertical plate, and the starting gear drives the driving bevel gear to rotate; and
the starting rack is vertically arranged on the mounting plate and penetrates through the coating lifting platform to be meshed with the starting gear.
As an improvement, the elasticity adjusting unit includes:
the sliding rail is arranged on the coating lifting platform and is arranged along the radial direction of the coating lifting platform;
the sliding seat is slidably mounted on the sliding rail, and the clamping roller is rotatably mounted on the sliding seat; and
the elastic adjusting piece is arranged on the sliding seat and is compressed to drive the clamping roller to tightly press the graphite workpiece.
As an improvement, holding rods are arranged on two sides of the sliding seat along the arrangement direction of the sliding rail, positioning rods correspondingly matched with the holding rods are arranged on two sides of the sliding rail, and the holding rods are abutted to the positioning rods to limit the sliding seat.
As an improvement, the sweeping assembly comprises:
the bottom cleaning brush is arranged on the coating lifting platform and used for cleaning the bottom end face of the graphite workpiece;
the side wall cleaning brush is arranged on one side of the graphite workpiece and is used for cleaning the side wall of the graphite workpiece; and
the top cleaning brush is arranged at the top of the graphite workpiece and cleans the top end face of the graphite workpiece.
The invention has the beneficial effects that:
(1) according to the invention, the graphite workpiece on the coating lifting platform is coated by conveying the silicon oxide gas formed by reacting the single-substance silicon powder and the aluminum oxide powder to the coating lifting platform through the pipeline, and in the coating process, the stirring and cleaning mechanism is utilized to ensure that the graphite workpiece rotates around the axial direction in the whole reaction process in cooperation with the descending of the coating lifting platform, so that the uniform coating is achieved, and the stirring and cleaning mechanism can continuously clean the surface layer of the graphite workpiece in the coating process, so that the cleaning and adhesion strength of the coating surface is achieved, and the technical problem of uneven coating of the existing graphite workpiece is solved;
(2) in the process of descending the platform, the coating platform bearing the graphite workpiece moves downwards after reacting with the silicon oxide gas for a certain time, so that the carbon monoxide gas generated by the reaction can not wrap the graphite workpiece, the subsequent silicon oxide gas can smoothly contact with the surface of the graphite workpiece, and the interference and influence of the carbon monoxide gas on the coating are avoided;
(3) according to the invention, the starting gear arranged on the coating platform is matched with the starting rack by descending the coating platform, the rotating sleeve is driven to rotate by the bevel gear set formed by matching the driven bevel gear and the driving bevel gear, and the graphite workpiece is driven to rotate by the rotation of the rotating sleeve, so that the graphite workpiece is uniformly coated by rotating;
(4) according to the invention, through the matching of the bottom cleaning brush, the side wall cleaning brush and the top cleaning brush, the graphite workpiece is continuously cleaned in the coating process, so that the surface of the graphite workpiece can be always kept clean, and the attachments on the surface of the graphite workpiece can be quickly removed through cleaning, so that the surface cleaning and the coating uniformity of the graphite workpiece are ensured, and the firmness of the coating on the surface of the graphite workpiece can be effectively ensured through cleaning.
In conclusion, the method has the advantages of uniform coating, full reaction, low comprehensive cost and the like, and is particularly suitable for the technical field of the coating method of the antioxidant graphite material.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of a ring gear according to the present invention;
FIG. 3 is a schematic perspective view of a coating lifting platform according to the present invention;
FIG. 4 is a schematic perspective view of a toggle assembly according to the present invention;
FIG. 5 is a schematic perspective view of a toggle assembly according to the present invention;
FIG. 6 is a perspective view of the sweeping assembly of the present invention;
FIG. 7 is a schematic perspective view of an elastic adjustment unit according to the present invention;
FIG. 8 is a schematic cross-sectional view of a positioning rod according to the present invention.
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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The first embodiment is as follows:
as shown in fig. 1 to 3, an automatic lifting coating platform for carbon graphite coating comprises:
the mounting plate 1 is horizontally and fixedly arranged;
the coating lifting platform 2 is arranged above the mounting plate 1 in parallel with the mounting plate 1, the coating lifting platform 2 bears a graphite workpiece 10 for coating, and a plurality of rolling balls 20 are embedded in the contact part of the coating lifting platform 2 and the graphite workpiece 10;
the lifting driving mechanism 3 drives the coating lifting platform 2 to lift along the vertical direction, the lifting driving mechanism 3 comprises a driving component 31 and a lifting component 32, and the driving component 31 drives the coating lifting platform 2 to lift along the vertical direction through the lifting component 32; and
stir and clean mechanism 4, stir and clean mechanism 4 install in on the coating lift platform 2, should stir and clean mechanism 4 including stir subassembly 41 and clean subassembly 42, and should stir and clean mechanism 4 along with the decline of coating lift platform 2, stir subassembly 41 and drive through the friction graphite work piece 10 on the coating lift platform 2 is around axial autogyration, synchronous, it is right to clean subassembly 42 the lateral wall of graphite work piece 10 cleans the processing.
Further, the driving assembly 31 includes:
a drive motor 311;
the driving motor shaft 312, the driving motor shaft 312 is in transmission connection with the driving motor 311;
a driving gear 313, the driving gear 313 being mounted on the driving motor shaft 312, the driving gear 313 rotating synchronously with the driving motor shaft 312;
the gear ring 314 is rotatably arranged above the coating lifting platform 2, and external teeth 315 on the outer ring of the gear ring 314 are correspondingly matched with the driving gear 313; and
and the transmission gear 316 is arranged on the inner ring of the gear ring 314, and the transmission gear 316 is correspondingly matched with the inner teeth 317 on the inner ring of the gear ring 314.
Further, the internal teeth 317 on the ring gear 314 are provided in a missing tooth arrangement, and the internal teeth 317 are composed of a tooth portion 3171 and a defective portion 3172 which are provided intermittently.
Wherein the lifting assembly 32 comprises:
the screw rods 322 are arranged in one-to-one correspondence with the transmission gears 316, and the screw rods 322 are rotatably mounted on the mounting plate 1; and
the lead screw nuts 323 are sleeved on the corresponding lead screws 322 and are installed on the coating lifting platform 2, and the lead screws 322 rotate to drive the coating lifting platform 2 to move up and down through the lead screw nuts 323.
Si and Al in the graphitization furnace2O3After the powder mixture completely reacts to generate SiO gas, in the process of coating the graphite workpiece 10 by the SiO gas, in order to avoid the influence of waste gas CO generated by the reaction on the coating of the graphite workpiece 10, the driving component 31 drives the gear ring 314 to rotate, the lead screw 322 matched with the gear ring 314 through the transmission gear 316 is made to rotate, and the coating lifting platform 2 moves downwards by virtue of the lead screw nut 323, is gradually close to the graphitizing tank, and forms gas flow on the graphite workpiece 10 by virtue of the movement of the coating lifting platform 2, thereby avoiding the influence of the waste gas.
Further, through the arrangement of the tooth portion 3171 and the defect portion 3172, the graphite workpiece 10 is better coated, after the coating lifting platform 2 descends for a certain distance, the coating lifting platform 2 stops for a certain time, so that the graphite workpiece 10 is subjected to a coating reaction, and after the graphite workpiece 10 reacts for a certain time, the graphite workpiece continues to move downwards, so that the coating reaction effect of the graphite workpiece 10 is ensured, and the interference of waste gas CO is avoided.
As shown in fig. 3, as a preferred embodiment, a material rest 21 for supporting the graphite workpiece 10 is disposed at a central line position of the coating lifting platform 2, a hollow hole 22 is disposed on the material rest 21, a plurality of air holes 23 are uniformly distributed at a position of the coating lifting platform 2 facing the material rest 21, and the balls 20 are embedded on a top end surface of the material rest 21.
It should be noted that the coating lifting platform 2 is provided with the hollow holes 22, the local position of the lower end face of the graphite workpiece 10, which is caused by the hollow holes 22, is subjected to a coating reaction first, and in the subsequent process, the graphite workpiece 10 can rotate by itself by using the rotation of the balls 20, so that the problem that the end face of the bottom of the graphite workpiece 10 cannot be coated comprehensively can be effectively solved.
As shown in fig. 5 to 8, as a preferred embodiment, the toggle assembly 41 includes:
the rotating sleeves 411 are sleeved on the corresponding screw rods 322 in a rotating mode, the rotating sleeves 411 are rotatably installed on the coating lifting platform 2, two groups of rotating sleeves 411 are arranged, and the rotating sleeves 411 are in friction contact with the graphite workpiece 10 to drive the graphite workpiece 10 to rotate;
the rotary driving units 412 are arranged corresponding to the rotary sleeves 411 one by one, and the rotary driving units 412 drive the rotary sleeves 411 to rotate along with the lifting of the coating lifting platform 2; and
the clamping rollers 413 and the two sets of rotating sleeves 411 are arranged in a triangular mode, the clamping rollers 413 are rotatably installed on the coating lifting platform 2, and the clamping rollers 413 press the graphite workpiece 10 against the rotating sleeves 411 through the bottom elastic adjusting unit 414.
Further, the rotation driving unit 412 includes:
a driven bevel gear 4121, the driven bevel gear 4121 being mounted on the top of the rotating sleeve 411;
a driving bevel gear 4122 rotatably mounted on one side of the driven bevel gear 4121 by a mounting vertical plate 4123, the driving bevel gear 4122 being engaged with the driven bevel gear 4121;
a starting gear 4124, wherein the starting gear 4124 and the driving bevel gear 4122 are coaxially arranged and are mounted on the mounting vertical plate 4123, and the starting gear 4124 drives the driving bevel gear 4122 to rotate; and
an actuating rack 4125, the actuating rack 4125 being vertically mounted on the mounting plate 1, the actuating rack 4125 being disposed through the coating lifting platform 2 in meshing engagement with the actuating gear 4124.
Further, the elasticity adjusting unit 414 includes:
the sliding rails 4141 are arranged on the coating lifting platform 2, and the sliding rails 4141 are arranged along the radial direction of the coating lifting platform 2;
the sliding seat 4142 is slidably mounted on the sliding rail 4141, and the clamping roller 413 is rotatably mounted on the sliding seat 4142; and
an elastic adjusting piece 4143, wherein the elastic adjusting piece 4143 is arranged on the sliding seat 4142, and the elastic adjusting piece 4143 is arranged in a compression mode to drive the clamping roller 413 to press the graphite workpiece 10.
The two sides of the sliding seat 4142 are provided with holding rods 4144 along the arrangement direction of the sliding rail 4141, the two sides of the sliding rail 4141 are provided with positioning rods 4145 correspondingly matched with the holding rods 4144, and the holding rods 4144 abut against the positioning rods 4145 to limit the sliding seat 4142.
Further, the sweeping assembly 42 includes:
the bottom cleaning brush 421 is arranged on the coating lifting platform 2, and the bottom cleaning brush 421 is used for cleaning the bottom end face of the graphite workpiece 10;
the side wall cleaning brush 422 is installed at one side of the graphite workpiece 10, and the side wall cleaning brush 422 cleans the side wall of the graphite workpiece 10; and
and the top cleaning brush 423 is arranged on the top of the graphite workpiece 10, and the top cleaning brush 423 cleans the top end surface of the graphite workpiece 10.
It should be noted that, the coating lifting platform 2 descends to drive the starting gear 4124 to cooperate with the starting rack 4125, so that the driving bevel gear 4122 rotates to drive the driven bevel gear 4121 to rotate, so that the rotating sleeve 411 rotates, when the rotating sleeve rotates, the graphite workpiece 10 rotates on the coating lifting platform 2 through the balls 20, so that the bottom side of the graphite workpiece 10 is rotated and switched in real time, the bottom side of the graphite workpiece 10 obtains a complete and uniform coating, meanwhile, the graphite workpiece 10 rotates, in the coating process, the graphite workpiece 10 is in contact with the Si0 gas more uniformly, and the surface of the graphite workpiece 10 is also coated more uniformly.
Further, in the process of coating the graphite workpiece 10, the graphite workpiece is continuously cleaned in the coating process by matching the bottom cleaning brush, the side wall cleaning brush and the top cleaning brush, so that the surface of the graphite workpiece can be always kept clean, attachments on the surface of the graphite workpiece can be quickly removed by cleaning, the surface cleaning and the coating uniformity of the graphite workpiece are ensured, and the firmness of the coating on the surface of the graphite workpiece can be effectively ensured by cleaning.
In addition, the clamping roller 413 can be subjected to tightness adjustment, after the graphite workpiece 10 is mounted, the clamping roller 413 is pressed against the graphite workpiece 10 in the included angle of the rotating sleeve 411 by means of the compression of the elastic adjusting piece 4143, so that the graphite workpiece 10 can rotate along with the rotation of the rotating sleeve 411, when the graphite workpiece 10 is removed from the coating lifting platform 2, the elastic adjusting piece 4143 is pressed by means of the withdrawing of the clamping roller 413, so that the graphite workpiece 10 can be smoothly removed from the coating lifting platform 2, and the clamping roller 413 can be positioned and fixed by means of the matching of the holding rods 4144 arranged on two sides of the sliding seat 4142 and the positioning rods 4145, wherein the positioning rods 4145 are composed of positioning seats 4146, telescopic heads 4147 and telescopic elastic pieces 4148, the telescopic heads 4147 are slidably arranged in the positioning seats 4148, and the telescopic elastic pieces 4148 are arranged between the positioning seats 4146 and the telescopic heads 4147 in an abutting mode.
The working process is as follows:
the method comprises the following steps:
step one, powder materialWeighing, according to the coating area of the graphite workpiece 10, calculating and weighing Si and Al2O3The powder is fully mixed, and the mixed powder is placed in a cavity in the graphitizing tank;
step two, reacting, wherein a heater on the inner wall of the reaction kettle heats the inside of the reaction kettle, Ar gas is synchronously introduced into the reaction kettle through a gas transmission pipeline on the reaction kettle, and Si and Al in the graphitization tank2O3The powder is driven by the stirring paddle 1 to react under stirring to generate Si0 gas;
blowing air for exhausting, wherein Si0 gas in the graphitization tank is conveyed to the graphite workpiece 10 through an exhaust pipe;
step four, coating, namely reacting Si0 gas discharged to the graphite workpiece 10 with the surface layer of the graphite workpiece 10 to form a SiC coating to wrap the graphite workpiece 10 and simultaneously form CO waste gas;
step five, the platform descends, and in synchronization with the step four, the driving assembly drives the coating lifting platform 2 to descend through the lifting assembly 32, the coating lifting platform 2 gradually approaches the graphitizing tank, and the graphite workpiece 10 is driven to be separated from the package of the CO waste gas;
step six, rotating the workpiece, wherein in the process of descending the coating lifting platform 2, the starting gear is rotated by utilizing the matching of the starting gear synchronously descending along with the coating lifting platform 2 and the starting rack, the rotating sleeve is rotated by matching the transmission of the driving bevel gear and the driven bevel gear, the graphite workpiece 10 is driven to rotate automatically by the rotation of the rotating sleeve, and the surface layer of the graphite workpiece 10 is cleaned by matching the arrangement of the bottom cleaning brush, the side wall cleaning brush and the top cleaning brush;
and seventhly, resetting and outputting, wherein after the graphite workpiece 10 is coated, the driving assembly rotates reversely, the coating lifting platform 2 is lifted and reset through the lifting assembly, and after the reaction kettle is cooled to the natural temperature, the graphite workpiece 10 is output.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a carbon graphite coating is with automatic rising coating platform which characterized in that includes:
the mounting plate (1), the said mounting plate (1) is fixed and set up horizontally;
the coating lifting platform (2) is arranged above the mounting plate (1) in parallel to the mounting plate (1), the coating lifting platform (2) bears a graphite workpiece (10) for coating, and a plurality of rolling balls (20) are embedded in the contact part of the coating lifting platform (2) and the graphite workpiece (10);
the lifting driving mechanism (3) drives the coating lifting platform (2) to lift along the vertical direction, the lifting driving mechanism (3) comprises a driving assembly (31) and a lifting assembly (32), and the driving assembly (31) drives the coating lifting platform (2) to lift along the vertical direction through the lifting assembly (32); and
stir and clean mechanism (4), stir and clean mechanism (4) install in on coating lift platform (2), should stir and clean mechanism (4) including stir subassembly (41) and clean subassembly (42), and should stir and clean mechanism (4) along with the decline of coating lift platform (2), stir subassembly (41) and drive through the friction graphite workpiece (10) on coating lift platform (2) are around the axial autogyration, synchronous, it is right to clean subassembly (42) the lateral wall of graphite workpiece (10) cleans the processing.
2. The carbon graphite coating automatic lifting coating platform as claimed in claim 1, wherein the driving assembly (31) comprises:
a drive motor (311);
the driving motor shaft (312), the driving motor shaft (312) is in transmission connection with the driving motor (311);
a drive gear (313), the drive gear (313) being mounted on the drive motor shaft (312), the drive gear (313) rotating synchronously with the drive motor shaft (312);
the gear ring (314) is rotatably arranged above the coating lifting platform (2), and external teeth (315) on the outer ring of the gear ring (314) are correspondingly matched with the driving gear (313); and
the transmission gear (316) is arranged on the inner ring of the gear ring (314), and the transmission gear (316) is correspondingly matched with the internal teeth (317) on the inner ring of the gear ring (314).
3. The carbon graphite coating automatic lifting coating platform as claimed in claim 2, wherein the internal teeth (317) on the gear ring (314) are arranged in a missing tooth manner, and the internal teeth (317) are composed of a tooth portion (3171) and a defective portion (3172) which are arranged intermittently.
4. The automated elevator coating platform for carbon graphite coating of claim 2, wherein the elevator assembly (32) comprises:
the screw rods (322) are arranged in one-to-one correspondence with the rotary gears (321), and the screw rods (322) are rotatably mounted on the mounting plate (1); and
the lead screw nuts (323) are sleeved on the corresponding lead screws (322) and are arranged on the coating lifting platform (2), and the lead screws (322) rotate to drive the coating lifting platform (2) to move up and down through the lead screw nuts (323).
5. The automatic lifting coating platform for the carbon graphite coating is characterized in that a material rest (21) for supporting a graphite workpiece (10) is arranged at the position of the center line of the coating lifting platform (2), hollow holes (22) are formed in the material rest (21), a plurality of air holes (23) are uniformly distributed in the position, facing the material rest (21), of the coating lifting platform (2), and the balls (20) are embedded on the top end face of the material rest (21).
6. The carbon graphite coating automatic lifting coating platform of claim 4, characterized in that the toggle assembly (41) comprises:
the rotary sleeves (411) are sleeved on the corresponding screw rods (322) in a rotating mode, the rotary sleeves (411) are rotatably installed on the coating lifting platform (2), two groups of rotary sleeves (411) are arranged, and the rotary sleeves (411) are in friction contact with the graphite workpiece (10) to drive the graphite workpiece (10) to rotate;
the rotary driving units (412) are arranged in one-to-one correspondence to the rotary sleeves (411), and the rotary driving units (412) drive the rotary sleeves (411) to rotate along with the lifting of the coating lifting platform (2); and
the clamping rollers (413) and the two groups of rotating sleeves (411) are arranged in a triangular mode, the clamping rollers (413) are rotatably installed on the coating lifting platform (2), and the clamping rollers (413) press the graphite workpiece (10) to abut against the rotating sleeves (411) through the bottom elastic adjusting unit (414).
7. The carbon graphite coating automatic lifting coating platform of claim 6, wherein the rotary driving unit (412) comprises:
a driven bevel gear (4121), the driven bevel gear (4121) being mounted on the top of the rotating sleeve (411);
the driving bevel gear (4122) is rotatably arranged on one side of the driven bevel gear (4121) through a mounting vertical plate (4123), and the driving bevel gear (4122) is meshed with the driven bevel gear (4121);
the starting gear (4124) and the driving bevel gear (4122) are coaxially arranged and are arranged on the mounting vertical plate (4123), and the starting gear (4124) drives the driving bevel gear (4122) to rotate; and
a starting rack (4125), wherein the starting rack (4125) is vertically arranged on the mounting plate (1), and the starting rack (4125) penetrates through the coating lifting platform (2) and is meshed with the starting gear (4124).
8. The carbon graphite coating automatic lifting coating platform as claimed in claim 6, wherein the elasticity adjusting unit (414) comprises:
the sliding rail (4141) is arranged on the coating lifting platform (2), and the sliding rail (4141) is arranged along the radial direction of the coating lifting platform (2);
the sliding seat (4142) is slidably mounted on the sliding rail (4141), and the clamping roller (413) is rotatably mounted on the sliding seat (4142); and
the elastic adjusting piece (4143), the elastic adjusting piece (4143) is arranged on the sliding seat (4142), the elastic adjusting piece (4143) is arranged in a compression mode, and the clamping roller (413) is driven to press the graphite workpiece (10).
9. The carbon graphite coating automatic lifting coating platform of claim 8, wherein in the arrangement direction of the sliding rail (4141), a holding rod (4144) is arranged on each side of the sliding seat (4142), a positioning rod (4145) correspondingly matched with the holding rod (4144) is arranged on each side of the sliding rail (4141), and the holding rod (4144) abuts against the positioning rod (4145) to limit the sliding seat (4142).
10. The automated rising and falling coating platform for carbon graphite coating of claim 1, wherein the sweeping assembly (42) comprises:
the bottom cleaning brush (421), the bottom cleaning brush (421) is arranged on the coating lifting platform (2), and the bottom cleaning brush (421) is used for cleaning the bottom end face of the graphite workpiece (10);
the side wall cleaning brush (422) is arranged on one side of the graphite workpiece (10), and the side wall cleaning brush (422) cleans the side wall of the graphite workpiece (10); and
the top cleaning brush (423) is arranged at the top of the graphite workpiece (10), and the top cleaning brush (423) cleans the top end face of the graphite workpiece (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011285195.0A CN112409024A (en) | 2020-11-17 | 2020-11-17 | Automatic lifting coating platform for carbon graphite coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011285195.0A CN112409024A (en) | 2020-11-17 | 2020-11-17 | Automatic lifting coating platform for carbon graphite coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112409024A true CN112409024A (en) | 2021-02-26 |
Family
ID=74831480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011285195.0A Withdrawn CN112409024A (en) | 2020-11-17 | 2020-11-17 | Automatic lifting coating platform for carbon graphite coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112409024A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114351085A (en) * | 2021-12-30 | 2022-04-15 | 苏州吉恒纳米科技有限公司 | Heat treatment blowing equipment before vacuum coating |
-
2020
- 2020-11-17 CN CN202011285195.0A patent/CN112409024A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114351085A (en) * | 2021-12-30 | 2022-04-15 | 苏州吉恒纳米科技有限公司 | Heat treatment blowing equipment before vacuum coating |
| CN114351085B (en) * | 2021-12-30 | 2024-04-09 | 苏州吉恒纳米科技有限公司 | Heat treatment purging equipment before vacuum coating |
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Application publication date: 20210226 |
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