CN116219352B - Composite nickel-plating base nano silicon carbide coating forming device for aluminum alloy cylinder body - Google Patents
Composite nickel-plating base nano silicon carbide coating forming device for aluminum alloy cylinder body Download PDFInfo
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- CN116219352B CN116219352B CN202310251919.7A CN202310251919A CN116219352B CN 116219352 B CN116219352 B CN 116219352B CN 202310251919 A CN202310251919 A CN 202310251919A CN 116219352 B CN116219352 B CN 116219352B
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/134—Plasma spraying
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/01—Selective coating, e.g. pattern coating, without pre-treatment of the material to be coated
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/18—After-treatment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a composite nickel-plating base nano silicon carbide coating forming device of an aluminum alloy cylinder body, which relates to the technical field of spray forming, and is based on plasma high-speed fusion welding thermal spraying, so that nickel-based materials form atomized molecules, the kinetic energy of the atomized molecules is increased and the spraying area of the atomized molecules is enlarged by utilizing a plasma spraying pipe rotating at a high speed, a left cylinder sleeve and a right cylinder sleeve limit the whole spraying process in a space between the two, the device is combined to a mechanical arm movement principle, and each ceramic hollow pipe only performs forced intervention cooling on the inner position of a piston after the spraying is finished by further driving the left cylinder sleeve and the right cylinder sleeve, and the generated air flow is ensured to correspond to the movement direction of the plasma spraying pipe.
Description
Technical Field
The invention relates to the technical field of spray forming, in particular to a composite nickel-plating base nano silicon carbide coating forming device of an aluminum alloy cylinder body.
Background
For the current motor vehicle engine such as automobiles and motorcycles, the engine cylinder body mainly takes aluminum alloy materials as main materials and has poor wear resistance due to the concepts of light weight, low pollution and the like, the inner wall (working surface) of the cylinder body needs to be formed into a wear-resistant coating through a spraying process, the working surface mainly takes the inner wall of a piston chamber in the engine cylinder body, and the currently widely used coating materials mainly take nickel-based alloys, so that the advantages of the nickel-based alloy coating comprise high hardness, high passivation capability, high polishing performance and the like;
the spraying process of the aluminum alloy cylinder body mainly uses a silicon carbide coating method, and the principle is that high-temperature electric arc is used for melting and atomizing welding wires (nickel-based alloy) to form atomized coating molecules, then the atomized coating molecules are sprayed on the inner wall of a piston chamber through an ultrasonic plasma spray head, the high kinetic energy generated when the coating molecules are sprayed out enables the coating molecules to impact the inner wall of the piston chamber heavily and adhere to the inner wall of the piston chamber, and heat conduction generated after the coating molecules in a high-heat state contact the inner wall of the piston chamber enables the coating to be quickly solidified and formed to form a nanoscale coating, so that the current plasma high-speed fusion welding thermal spraying process and a hot wire coating process can be specifically referred to;
it should be noted that: the nickel-based material is used as a coating raw material, wherein the melting temperature of the nickel-based material is 910-1250 ℃, particularly the temperature of paint molecules in an atomization state is higher, so that the paint molecules in a high-heat state are difficult to quickly cool and solidify in a short time when contacting the inner wall of a piston, and in the actual cooling process, as the spraying process aiming at a piston chamber is circularly and reciprocally conducted, the heat of the paint molecules directly conducts into a cylinder body, so that certain damage is caused to the cylinder body, and if forced cooling, such as forced cold air cooling, is adopted, the mode of interfering with the actual spraying process, such as influencing the spraying direction or reducing the temperature of the atomized paint molecules, the spraying is uneven or the paint is difficult to adhere to the inner wall of the piston chamber is adopted;
to this end we devised a solution.
Disclosure of Invention
The invention aims to provide a composite nickel-plating base nano silicon carbide coating forming device of an aluminum alloy cylinder body, which is used for solving the problems that when the aluminum alloy cylinder body is subjected to spraying operation at present, the spraying is uneven or the coating is difficult to adhere to the inner wall of a piston chamber because the aluminum alloy cylinder body is difficult to cool and solidify quickly in a short time.
The aim of the invention can be achieved by the following technical scheme:
the device comprises a positioning groove plate, a left mechanical arm, a right mechanical arm, a plasma jet pipe and an engine cylinder body, wherein the engine cylinder body is placed on the positioning groove plate, and the left mechanical arm and the right mechanical arm are respectively arranged on the left side and the right side of the positioning groove plate;
the device comprises a left mechanical arm, a right mechanical arm, a left cylinder sleeve, a right cylinder sleeve, a driving structure, a connecting disc, a ceramic hollow tube, a ball shoe spray head, a plasma spray tube, a connecting disc and a grabbing structure, wherein the mounting boxes are arranged on the left mechanical arm and the right mechanical arm, the mounting boxes on the left mechanical arm are arranged to be in a cooperative motion position, the mounting boxes on the right mechanical arm are arranged to be in a driving position, the left cylinder sleeve is arranged to be close to the cooperative motion position, the left cylinder sleeve is arranged to be close to the center point of the right cylinder sleeve, the ceramic hollow tube is arranged to be in an annular array along the center point of the connecting disc, the ball shoe spray head is arranged at the tail end of the ceramic hollow tube, the grabbing structure is arranged between the connecting disc and the left cylinder sleeve and the right cylinder sleeve, and the plasma spray tube is in a rotary connection between the center point of the connecting disc and the right cylinder sleeve, and the connecting disc is arranged at the tail end of the plasma spray tube;
the left cylinder sleeve and the right cylinder sleeve are positioned in a piston chamber of an engine cylinder body, the outer diameter of the left cylinder sleeve is equal to the inner wall of the piston chamber, the outer diameter of the right cylinder sleeve is smaller than the inner wall of the piston chamber, a ceramic lantern ring is arranged on the outer curved surface of the ceramic lantern ring, a plurality of arc-shaped poking pieces are arranged in an annular array along the center point of the ceramic lantern ring, the arc-shaped poking pieces are matched with the inner wall of the piston chamber, and an air pipe communicated with a ceramic hollow pipe is arranged on the connecting disc.
Further provided is that: the length of the ceramic hollow tube is greater than the radial distance between the inner wall of the left cylinder sleeve and the inner wall of the right cylinder sleeve, and the setting position of the ceramic hollow tube is positioned at the middle position of the plasma jet tube and the inner wall of the piston chamber.
Further provided is that: the grabbing structure comprises a plurality of claw blocks and claw grooves matched with the claw blocks, the claw blocks are arranged at the outer wall position of the connecting disc, which is close to the left barrel sleeve, the outer wall position of the right barrel sleeve, which is close to the left barrel sleeve, and the claw blocks are arranged in an annular array along the circle center point of the connecting disc, and the claw grooves are arranged in the outer wall of the left barrel sleeve, which is close to the connecting disc, and in the outer wall of the left barrel sleeve, which is close to the right barrel sleeve.
Further provided is that: the outer position of the connecting disc is provided with a second motor, the second motor is arranged in an installation box of the coordination position, and the tail end of an output shaft of the second motor is connected with the position of the center point of the connecting disc;
the setting direction of the hook claw block on the connecting disc and the right cylinder sleeve is opposite.
Further provided is that: the right cylinder sleeve is provided with a through opening corresponding to the ceramic hollow pipe, and the caliber of the through opening is larger than the diameter of the spherical spray head.
Further provided is that: the right cylinder sleeve is provided with a movable shaft sleeve at the outer wall position close to the active position, one end of the movable shaft sleeve is rotationally connected with the mounting box of the active position, and the movable shaft sleeve is rotationally connected with the plasma jet pipe.
Further provided is that: the driving structure comprises a first motor, a third motor, a driving bevel gear and a cooperating bevel gear, wherein the driving bevel gear and the cooperating bevel gear are arranged in an installation box at a driving position, the driving bevel gear is arranged on a plasma jet pipe, the two cooperating bevel gears are rotatably arranged on the inner wall of the installation box at the driving position, the cooperating bevel gears are meshed with the driving bevel gear, the number of the first motors is two, the first motors are arranged on the outer position of the installation box at the driving position, and an output shaft of the first motor is connected with the center point of the driving bevel gear.
Further provided is that: the driving structure further comprises a third motor and a driving straight gear, the third motor is arranged in the mounting box of the driving position, an output shaft of the third motor is connected with the center point position of the driving straight gear, and the driving straight gear is meshed with the movable shaft sleeve.
The invention has the following beneficial effects:
1. based on the current plasma high-speed fusion welding thermal spraying, nickel-based materials are used as spraying raw materials, nickel-based materials are enabled to form atomized molecules, the kinetic energy of the atomized molecules is increased and the spraying area of the atomized molecules is enlarged through driving a high-speed rotating plasma spraying pipe, so that the atomized molecules are fully attached to the inner wall of a piston chamber, on the basis, the operation principle of a mechanical arm is utilized, the left cylinder sleeve and the right cylinder sleeve are controlled to be matched with the spraying operation to perform proper movement, the mode is used for limiting the whole spraying operation to be only limited in the inner wall of the piston chamber, the left cylinder sleeve is connected with a ceramic hollow pipe used for conveying cold air flow, and the ceramic hollow pipe is matched with the plasma spraying pipe, so that the ceramic hollow pipe only acts on the inner wall of the piston chamber after the spraying is finished, and the spraying process of the piston chamber which is not sprayed is prevented from being interfered;
2. the process of conveying cold air flow through the ceramic hollow tube is further limited, and the ceramic sleeve is sleeved on the outer wall of the right sleeve, and slowly rotates through the movable sleeve and the driving spur gear, so that when the ceramic hollow tube is matched for conveying cold air flow, a gap between the right sleeve and the inner wall of the piston chamber is used as an air flow overflow gap, and an arc-shaped poking piece on the slowly rotating ceramic sleeve primarily scrapes the solidified coating;
3. the left cylinder sleeve and the right cylinder sleeve are in bidirectional separation and bidirectional connection through the claw hooking block and the claw hooking groove, and the purpose of the left cylinder sleeve and the right cylinder sleeve is to match with the movement of the left cylinder sleeve and the right cylinder sleeve and the movement of the left mechanical arm and the right mechanical arm, and also to match with the appearance of a piston chamber of an engine cylinder body, so that the left cylinder sleeve and the right cylinder sleeve which form a whole are conveniently placed in an initial stage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a composite nickel-plated nano silicon carbide coating forming device of an aluminum alloy cylinder body;
FIG. 2 is a cross-sectional view of an engine block body in the composite nickel-plated nano silicon carbide coating forming device of an aluminum alloy block body;
FIG. 3 is a schematic structural view of a left mechanical arm and a right mechanical arm in the composite nickel-plating-based nano silicon carbide coating forming device of the aluminum alloy cylinder body;
FIG. 4 is a schematic view of the folded state of FIG. 3 in a composite nickel-plated nano silicon carbide coating forming device of an aluminum alloy cylinder body according to the present invention;
FIG. 5 is a schematic structural view of a connecting disc component of a composite nickel-plating-based nano silicon carbide coating forming device of an aluminum alloy cylinder body;
FIG. 6 is a cross-sectional view of a left sleeve component in the composite nickel-plated nano silicon carbide coating forming device of the aluminum alloy cylinder body;
fig. 7 is a schematic structural diagram of a right sleeve member in the composite nickel-plating-based nano silicon carbide coating forming device of the aluminum alloy cylinder body.
In the figure: 1. positioning a groove plate; 2. a left mechanical arm; 3. a right mechanical arm; 4. an engine block body; 5. an air pipe; 6. a mounting box; 7. a left cylinder sleeve; 8. a first motor; 9. a plasma jet tube; 10. a feed pipe; 11. a connecting disc; 12. a movable shaft sleeve; 13. a ceramic collar; 14. a right barrel cover; 15. a ceramic hollow tube; 16. a second motor; 17. spherical spray heads; 18. a claw block; 19. a through hole; 20. a claw hooking groove; 21. a drive bevel gear; 22. a cooperating bevel gear; 23. a third motor; 24. a driving spur gear; 25. an arc-shaped plectrum.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
For the spraying operation of aluminum alloy cylinder body, because the spraying process to the piston room is cyclic reciprocating, in its heat direct conduction cylinder body, can cause certain damage to the cylinder body, if adopt forced cooling, like modes such as forced cold wind cooling, can interfere actual spraying process, if appear influencing spraying direction or reduce the temperature of atomizing coating molecule, lead to spraying inhomogeneous or coating be difficult to adhere to on the piston room inner wall, for this reason put forward following technical scheme:
referring to fig. 1 to 7, the composite nickel-plated nano silicon carbide coating forming device of an aluminum alloy cylinder in the embodiment comprises a positioning groove plate 1, a left mechanical arm 2, a right mechanical arm 3, a plasma jet pipe 9 and an engine cylinder body 4, wherein the engine cylinder body 4 is placed on the positioning groove plate 1, and the left mechanical arm 2 and the right mechanical arm 3 are respectively arranged at the left side and the right side of the positioning groove plate 1;
the left mechanical arm 2 and the right mechanical arm 3 are respectively provided with an installation box 6, wherein the installation boxes 6 positioned on the left mechanical arm 2 are arranged as a cooperative position, the installation boxes 6 positioned on the right mechanical arm 3 are arranged as active positions, a left cylinder sleeve 7 and a right cylinder sleeve 14 are respectively arranged between the two installation boxes 6, the left cylinder sleeve 7 is arranged at a position close to the cooperative position, the right cylinder sleeve 14 is arranged at a position close to the active position, a driving structure corresponding to the right cylinder sleeve 7 is arranged in the active position, a plasma jet pipe 9 penetrates through the center point position of the right cylinder sleeve 14 and is in rotary connection with the right cylinder sleeve 14, a connecting disc 11 is arranged on the outer wall position of the left cylinder sleeve 7 close to the cooperative position, a plurality of ceramic hollow tubes 15 are arranged on the outer wall position of the connecting disc 11 close to the right cylinder sleeve 14, a plurality of ceramic hollow tubes 15 are arranged in an annular array along the center point of the connecting disc 11, ball shoe spray heads 17 are arranged at the tail ends of the ceramic hollow tubes 15, a grabbing structure is arranged between the left cylinder sleeve 7 and the right cylinder sleeve 14, and the plasma jet pipe 9 is provided with a feeding pipe 10;
the left barrel casing 7 and the right barrel casing 14 are positioned in a piston chamber of the engine cylinder body 4, the outer diameter of the left barrel casing 7 is equal to the inner wall of the piston chamber, the outer diameter of the right barrel casing 14 is smaller than the inner wall of the piston chamber, the ceramic lantern ring 13 is arranged on the outer wall of the right barrel casing 14, a plurality of arc-shaped poking sheets 25 are arranged on the outer curved surface of the ceramic lantern ring 13, the arc-shaped poking sheets 25 are arranged in an annular array along the center point of the ceramic lantern ring 13, the arc-shaped poking sheets 25 are matched with the inner wall of the piston chamber, and the connecting disc 11 is provided with the air pipe 5 communicated with the ceramic hollow pipe 15.
The working process comprises the following steps:
process one: placing the engine cylinder body 4 on the positioning groove plate 1, and ensuring that piston chambers to be sprayed in the engine cylinder body 4 correspond to the left mechanical arm 2 and the right mechanical arm respectively;
and a second process: in the initial state, the left cylinder sleeve 7 and the right cylinder sleeve 14 are of an integrated structure, the left cylinder sleeve 7 and the right cylinder sleeve 14 are connected together, and the right mechanical arm 3 stretches into one of the piston chambers, in this state, the left mechanical arm 2 is required to drive the connecting disc 11 to stretch into the piston chamber, the connecting disc 11 is connected with the left cylinder sleeve 7, and the left cylinder sleeve 7 and the right cylinder sleeve 14 are separated through the grabbing structure;
and a third process: injecting molten nickel-based atomized molecules in an atomized state into the plasma jet pipe 9 through a feed pipe 10, and driving the plasma jet pipe 9 to rotate at a high speed by a driving structure, so that the atomized molecules are sprayed on the inner wall of the piston chamber in a high-kinetic-energy and high-heat state;
and a process IV: in the third process, the left cylinder sleeve 7 and the right cylinder sleeve 14 correspondingly move in the piston chamber through the left mechanical arm 2 and the right mechanical arm 3 at corresponding positions, and the specific moving mode is as follows:
in the initial stage, the right sleeve 14 just seals the opening position on the right side of the piston chamber, while the left sleeve 7 is positioned on the left side of the right sleeve 14, and a certain distance is kept between the two sleeves, wherein the specific distance is expressed as follows: the spherical spray head 17 on the ceramic hollow tube 15 is always positioned on the right side of the spray opening on the plasma spray tube 9, namely: the spherical spray head 17 only carries out forced cooling on the inner wall of the piston chamber which is sprayed with cold air flow, in this state, the ceramic hollow tube 15 is in an unvented state, then the right cylinder sleeve 14 and the left cylinder sleeve 7 synchronously move leftwards, in this process, the ceramic hollow tube 15 is in an aerated state, and forced cooling intervention is carried out on the inner wall of the piston chamber which is sprayed with cold air flow sprayed by the spherical spray head 17;
it should be noted that: in order to cooperate with the reinforcing spray coating, the right sleeve 14 and the left sleeve 7 need to reciprocate left and right, as shown in the above description, when the right sleeve 14 and the left sleeve 7 synchronously move leftwards, the ceramic hollow tube 15 is in a ventilation state, and when the right sleeve 14 and the left sleeve 7 synchronously move rightwards, the ceramic hollow tube 15 is in an unvented state;
and a fifth process: after the spraying operation is finished, the rotation of the plasma spraying pipe 9 is stopped, firstly, the left barrel sleeve 7 and the right barrel sleeve 14 are integrated again, then the connecting disc 11 is separated from the left barrel sleeve 7, the left mechanical arm 2 drives the connecting disc 11 to reset, and the right mechanical arm 3 drives the left barrel sleeve 7 and the right barrel sleeve 14 to reset, so that one-end spraying operation is finished.
Example two
The present embodiment is a technical solution explanation for a connection and separation process between the left sleeve and the right sleeve in the first embodiment, and specifically includes the following steps:
the length of the ceramic hollow tube 15 is larger than the radial distance between the inner wall of the left cylinder sleeve 7 and the inner wall of the right cylinder sleeve 14, the arrangement position of the ceramic hollow tube 15 is positioned in the middle of the plasma jet tube 9 and the inner wall of the piston chamber, the grabbing structure comprises a plurality of claw blocks 18 and claw grooves 20 matched with the claw blocks 18, the claw blocks 18 are arranged on the outer wall position of the connecting disc 11, which is close to the left cylinder sleeve 7, the outer wall position of the right cylinder sleeve 14, which is close to the left cylinder sleeve 7, along the center point of the connecting disc 11, in the inner part of the outer wall of the left cylinder sleeve 7, which is close to the right cylinder sleeve 14, the claw grooves 20 are arranged in the outer wall of the left cylinder sleeve 7, which is close to the connecting disc 11, a second motor 16 is arranged at the outer position of the connecting disc 11, the second motor 16 is arranged in the mounting box 6 of the cooperative position, and the tail end of the output shaft of the second motor 16 is connected with the center point of the connecting disc 11;
the connection disc 11 and the hook claw block 18 on the right barrel sleeve 14 are arranged in opposite directions, the right barrel sleeve 14 is provided with a through hole 19 corresponding to the ceramic hollow tube 15, and the caliber of the through hole 19 is larger than the diameter of the spherical spray head 17.
Working principle: referring to fig. 3 and 4, in an initial state, the claw block 18 on the left barrel casing 7 is embedded into the claw groove 20 in the right barrel casing 14, and then the left barrel casing 7 and the right barrel casing 14 are integrated, so that the left barrel casing 7 and the right barrel casing 14 can be penetrated into the right barrel casing from the right side position of the piston chamber through the right mechanical arm 3, the left mechanical arm 3 drives the connecting disc 11 to be penetrated into the left barrel casing from the left side position of the piston chamber, and the claw block 18 and the claw groove 20 are matched again, so that the claw block 18 in the connecting disc 11 is embedded into the claw groove 20 in the left barrel casing 7;
then, the second motor 16 and the first motor 8 are started simultaneously to drive the left barrel casing 7 and the right barrel casing 14 to reversely rotate, so that the connecting disc 11 completely grabs the left barrel casing 7 on one hand, the left barrel casing 7 and the right barrel casing 14 are completely separated on the other hand, then, the left mechanical arm 2 is used for controlling the left barrel casing 7 to move, and the right mechanical arm 3 is used for controlling the right barrel casing 14 to move;
when the left cylinder sleeve 7 and the right cylinder sleeve 14 are folded, the connecting disc 11 drives the left cylinder sleeve 7 to approach to the right cylinder sleeve 14, the second motor 16 and the first motor 8 are synchronously started again to drive the left cylinder sleeve 7 and the right cylinder sleeve 14 to reversely rotate, the purpose is that the claw block 18 in the right cylinder sleeve 14 is embedded into the claw groove 20 in the left cylinder sleeve 7 again, the connecting disc 11 is controlled to reversely rotate, the claw block 18 on the connecting disc 11 is separated from the claw groove 20 in the left cylinder sleeve 7, the left cylinder sleeve 7 and the right cylinder sleeve 14 are integrated again, and the right mechanical arm 3 drives the left cylinder sleeve 7 and the right cylinder sleeve 14 to reset.
Example III
The present embodiment is to explain the related structure of the ceramic hollow tube in the first embodiment:
the right barrel casing 14 is provided with a movable shaft sleeve 12 near the outer wall of the active position, one end of the movable shaft sleeve 12 is in rotary connection with the mounting box 6 of the active position, the movable shaft sleeve 12 is in rotary connection with the plasma jet pipe 9, the driving structure comprises a first motor 8, a third motor 23, a drive bevel gear 21 and a co-action bevel gear 22, the drive bevel gear 21 and the co-action bevel gear 22 are arranged in the mounting box 6 of the active position, the drive bevel gear 21 is arranged on the plasma jet pipe 9, the two co-action bevel gears 22 are rotatably arranged on the inner wall of the mounting box 6 of the active position, the co-action bevel gear 22 is meshed with the drive bevel gear 21, the first motor 8 is arranged at the outer position of the mounting box 6 of the active position, the output shaft of the first motor 8 is connected with the center point position of the drive bevel gear 21, the driving structure further comprises a third motor 23 and a drive straight gear 24, the third motor 23 is arranged in the mounting box 6 of the active position, the output shaft of the third motor 23 is connected with the center point position of the drive straight gear 24, and the drive straight gear 24 is meshed with the movable shaft sleeve 12.
Working principle: in the second embodiment, when the connecting disc 11 is connected with the left sleeve 7, the ceramic hollow tube 15 needs to penetrate through the left sleeve 7 through the through hole 19, and the ventilation state of the ceramic hollow tube 15 is controlled according to the content in the first embodiment;
in the above process, referring to fig. 7, there is a gap between the outer wall of the right sleeve 14 and the inner wall of the piston chamber, and regarding the ventilation direction of the ceramic hollow tube 15 in the first embodiment is always kept in the rightward direction, the generated air flow can overflow along the gap between the outer wall of the right sleeve 14 and the inner wall of the piston chamber, and the purpose is that: through heat conduction, heat energy generated by atomized molecules sprayed on the inner wall of the piston chamber is blown out of the piston chamber, and in the process, the ceramic lantern ring 13 is driven by the third motor 23 to slowly rotate, so that the aim of preliminary scraping is achieved at the position of the coating outer layer which is completely solidified or not completely solidified, on one hand, the air flow direction of the position of the coating outer layer is driven, and on the other hand, the coating can be subjected to preliminary scraping treatment.
To sum up: based on plasma high-speed fusion welding thermal spraying, nickel-based material forms atomizing molecules, and utilizes a high-speed rotating plasma jet pipe to increase kinetic energy of the atomizing molecules and expand spraying area of the atomizing molecules, a left cylinder sleeve and a right cylinder sleeve limit the whole spraying process in a space between the two, and are combined to a mechanical arm movement principle, and each ceramic hollow pipe only performs forced intervention cooling on the inner position of a piston after spraying by further driving the left cylinder sleeve and the right cylinder sleeve to orderly move in a piston chamber in an engine cylinder body, and ensures that generated air flow corresponds to the movement direction of the plasma jet pipe, wherein the air flow direction is opposite to the movement direction of the plasma jet pipe, and the ceramic hollow pipe stops gas transmission when the plasma jet pipe reciprocates, so that the air flow is prevented from influencing the actual spraying process.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (8)
1. The composite nickel-plating-based nano silicon carbide coating forming device of the aluminum alloy cylinder comprises a positioning groove plate (1), a left mechanical arm (2), a right mechanical arm (3), a plasma jet pipe (9) and an engine cylinder body (4), and is characterized in that the engine cylinder body (4) is placed on the positioning groove plate (1), and the left mechanical arm (2) and the right mechanical arm (3) are respectively arranged on the left side and the right side of the positioning groove plate (1);
the device comprises a left mechanical arm (2) and a right mechanical arm (3), wherein the left mechanical arm (2) and the right mechanical arm (3) are respectively provided with a mounting box (6), the mounting boxes (6) on the left mechanical arm (2) are arranged to be a cooperative position, the mounting boxes (6) on the right mechanical arm (3) are arranged to be active positions, a left cylinder sleeve (7) and a right cylinder sleeve (14) are respectively arranged between the two mounting boxes (6), the left cylinder sleeve (7) is arranged to be close to the cooperative position, the right cylinder sleeve (14) is arranged to be close to the active position, a driving structure corresponding to the right cylinder sleeve (14) is arranged in the active position, a plasma injection pipe (9) penetrates through the center point position of the right cylinder sleeve (14) and is in rotary connection with the right cylinder sleeve (14), a connecting disc (11) is arranged on the outer wall position of the left cylinder sleeve (7) close to the cooperative position, a plurality of ceramic hollow pipes (15) are respectively arranged on the outer wall positions of the connecting disc (11) close to the right cylinder sleeve (14), a plurality of ceramic hollow pipes (15) are arranged along the annular points of the connecting disc (11) and are arranged between the left cylinder sleeve (14) and the spherical hollow sleeves (17), the tail end of the plasma jet pipe (9) is provided with a feed pipe (10);
left barrel casing (7) and right barrel casing (14) are arranged in the piston chamber of engine cylinder body (4), and the outer diameter of left barrel casing (7) equals the piston chamber inner wall, right barrel casing (14) outer diameter is less than the piston chamber inner wall, and right barrel casing (14) outer wall installs ceramic lantern ring (13), be provided with a plurality of arc plectrums (25) on ceramic lantern ring (13) the outer curved surface position, a plurality of arc plectrums (25) are the annular array setting along the centre of a circle point of ceramic lantern ring (13), and assorted between arc plectrum (25) and the piston chamber inner wall, install trachea (5) with ceramic hollow tube (15) intercommunication on connection pad (11).
2. The composite nickel-plating base nano silicon carbide coating forming device of the aluminum alloy cylinder body according to claim 1, wherein the length of the ceramic hollow tube (15) is larger than the radial distance between the inner wall of the left cylinder sleeve (7) and the inner wall of the right cylinder sleeve (14), and the setting position of the ceramic hollow tube (15) is positioned at the middle position of the plasma jet tube (9) and the inner wall of the piston chamber.
3. The composite nickel-plated nano silicon carbide coating forming device of the aluminum alloy cylinder body according to claim 1, wherein the grabbing structure comprises a plurality of claw blocks (18) and claw hooking grooves (20) matched with the claw blocks (18), the claw blocks (18) are arranged on the outer wall position, close to the left cylinder sleeve (7), of the connecting disc (11), the outer wall position, close to the left cylinder sleeve (7), of the right cylinder sleeve (14), the claw blocks (18) are arranged in an annular array along the center point of the connecting disc (11), and the claw hooking grooves (20) are arranged in the outer wall, close to the connecting disc (11), of the left cylinder sleeve (7) and the outer wall, close to the right cylinder sleeve (14).
4. The composite nickel-plating-based nano silicon carbide coating forming device of the aluminum alloy cylinder body according to claim 3, wherein a second motor (16) is arranged at the outer position of the connecting disc (11), the second motor (16) is arranged in a mounting box (6) at a cooperative position, and the tail end of an output shaft of the second motor (16) is connected with the position of the center point of the connecting disc (11);
the connecting disc (11) and the hook claw block (18) on the right cylinder sleeve (14) are arranged in opposite directions.
5. The device for forming the composite nickel-plated nano silicon carbide coating of the aluminum alloy cylinder body according to claim 1, wherein a through hole (19) corresponding to the ceramic hollow tube (15) is formed in the right cylinder sleeve (14), and the caliber of the through hole (19) is larger than the diameter of the spherical spray head (17).
6. The device for forming the composite nickel-plated nano silicon carbide coating of the aluminum alloy cylinder body according to claim 1, wherein the right cylinder sleeve (14) is provided with a movable shaft sleeve (12) close to the outer wall of the active position, one end of the movable shaft sleeve (12) is in rotary connection with the mounting box (6) of the active position, and the movable shaft sleeve (12) is in rotary connection with the plasma jet pipe (9).
7. The composite nickel-plated nano silicon carbide coating forming device of the aluminum alloy cylinder according to claim 1, wherein the driving structure comprises a first motor (8), a third motor (23), a driving bevel gear (21) and a cooperating bevel gear (22), the driving bevel gear (21) and the cooperating bevel gear (22) are arranged in a mounting box (6) at a driving position, the driving bevel gear (21) is mounted on a plasma jet tube (9), the two cooperating bevel gears (22) are rotatably mounted on the inner wall of the mounting box (6) at the driving position, the cooperating bevel gears (22) are meshed with the driving bevel gear (21), the number of the first motors (8) is two, the first motors (8) are mounted on the outer position of the mounting box (6) at the driving position, and an output shaft of the first motor (8) is connected with the center point position of the driving bevel gear (21).
8. The device for forming the composite nickel-plated nano silicon carbide coating of the aluminum alloy cylinder according to claim 7, wherein the driving structure further comprises a third motor (23) and a driving spur gear (24), the third motor (23) is installed in an installation box (6) at a driving position, an output shaft of the third motor (23) is connected with the center point position of the driving spur gear (24), and the driving spur gear (24) is meshed with the movable shaft sleeve (12).
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| CN202310251919.7A CN116219352B (en) | 2023-03-16 | 2023-03-16 | Composite nickel-plating base nano silicon carbide coating forming device for aluminum alloy cylinder body |
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| CN202310251919.7A CN116219352B (en) | 2023-03-16 | 2023-03-16 | Composite nickel-plating base nano silicon carbide coating forming device for aluminum alloy cylinder body |
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|---|---|---|---|---|
| EP0716158A1 (en) * | 1994-12-09 | 1996-06-12 | Ford Motor Company Limited | Method of making engine blocks with coated cylinder bores |
| CN103710660A (en) * | 2013-12-24 | 2014-04-09 | 中国人民解放军装甲兵工程学院 | Method for size restoring and reinforcing of outer wall and inner wall of water-cooling cylinder sleeve of engine |
| CN109778104A (en) * | 2019-03-06 | 2019-05-21 | 扬州大学 | A kind of cylinder liner internal wall heat insulation and wear resistance composite coating and preparation method |
| CN210125503U (en) * | 2019-05-22 | 2020-03-06 | 天津市富海通管道科技有限公司 | A inside and outside spraying device for steel plastic composite pipe |
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2023
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|---|---|---|---|---|
| EP0716158A1 (en) * | 1994-12-09 | 1996-06-12 | Ford Motor Company Limited | Method of making engine blocks with coated cylinder bores |
| CN103710660A (en) * | 2013-12-24 | 2014-04-09 | 中国人民解放军装甲兵工程学院 | Method for size restoring and reinforcing of outer wall and inner wall of water-cooling cylinder sleeve of engine |
| CN109778104A (en) * | 2019-03-06 | 2019-05-21 | 扬州大学 | A kind of cylinder liner internal wall heat insulation and wear resistance composite coating and preparation method |
| CN210125503U (en) * | 2019-05-22 | 2020-03-06 | 天津市富海通管道科技有限公司 | A inside and outside spraying device for steel plastic composite pipe |
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