CN112410720B - Coaxial thermocouple transient heat flow sensor node plasma spraying conduction device - Google Patents
Coaxial thermocouple transient heat flow sensor node plasma spraying conduction device Download PDFInfo
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- CN112410720B CN112410720B CN202011410747.6A CN202011410747A CN112410720B CN 112410720 B CN112410720 B CN 112410720B CN 202011410747 A CN202011410747 A CN 202011410747A CN 112410720 B CN112410720 B CN 112410720B
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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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Abstract
The invention discloses a coaxial thermocouple transient heat flow sensor node plasma spraying conduction device which comprises a support, a positioning and clamping device and a plasma spraying assembly, wherein the positioning and clamping device is arranged on the support and used for providing multi-station clamping for a plurality of sensors, the plasma spraying assembly is opposite to the positioning and clamping device, the positioning and clamping device is used for driving a target sensor to do synchronous circular motion and linear motion when the device works, and the plasma spraying assembly is matched with the positioning and clamping device and used for forming an electric connection surface on the node surface of the sensor. According to the invention, by plasma spraying and matching with the state combination of circular motion and linear motion of the sensors, the node surfaces of the sensors are enabled to quickly and uniformly form controllable electric connection surfaces, the forms of the conduction connection surfaces of a plurality of sensors are optimized, the discrete large condition of a plasma spraying mode can be accurately controlled, the accurate control of the electric connection surfaces is realized, high-efficiency, wear-resistant and controllable nodes are formed, and the uncertainty of the measurement process of the measurement nodes is reduced.
Description
Technical Field
The invention relates to the technical field of sensors, in particular to a plasma spraying conduction device for a coaxial thermocouple transient heat flow sensor node.
Background
The coaxial thermocouple transient heat flow sensor is an experimental component which utilizes Seebeck effects of different electrode materials to form electromotive force under different temperature gradient effects and measure the electromotive force so as to invert temperature and heat flow, is mainly used for aerospace hypersonic aircraft pneumatic experiments, hypersonic flow related experiments and the like, and has the characteristics of fast response, large measuring range, high precision, strong robustness and the like.
The sensor structure comprises a positive electrode material, a negative electrode material and an insulating layer, wherein the insulating layer separates the two electrode materials, and the end parts of the two electrode materials are conducted to form a measurement node. Node formation methods are currently roughly divided into two types: one is direct polishing, wherein metal particles are formed on an insulating layer by polishing in modes of sand paper, file and the like and are used as a node to conduct two-pole materials; the other method is that a node is formed by directly crossing an insulating layer through vacuum coating, two pole materials are conducted, high-speed protective airflow is needed in the manufacturing process of the sensor, and metal particles in the insulating layer are easily blown off by the high-speed airflow in the process of forming the measuring node and the node is failed due to scouring coating.
Disclosure of Invention
The invention aims to provide a coaxial thermocouple transient heat flow sensor node plasma spraying conduction device to solve the technical problems that metal particles in an insulating layer are easily blown off by high-speed airflow in the process of forming a measurement node in the existing heat flow sensor and the node fails due to film erosion and coating.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
the utility model provides a coaxial thermocouple transient state thermal current sensor node plasma spraying switches on device, includes the support, and installs be used for providing the location clamping device of multistation centre gripping for a plurality of sensors on the support, and just right location clamping device's plasma spraying subassembly, location clamping device is used for driving target sensor at the device during operation and is synchronous circular motion and linear motion, plasma spraying subassembly with location clamping device cooperates for form the electric connection face on the node surface of sensor.
In a preferred embodiment of the present invention, the plasma spraying component includes a plasma nozzle assembly, and a guiding nozzle installed on the plasma nozzle assembly, the guiding nozzle is used for limiting the width of the plasma beam sprayed by the plasma nozzle in the radial direction of the nodal point surface, and an electrical connection surface with a controllable shape is formed on the nodal point surface.
In a preferred embodiment of the present invention, the pilot showerhead comprises a circular truncated cone spirally coupled to the plasma showerhead assembly, an angle air cavity is arranged inside the inner wall of the round table body, an air nozzle for supplying air through an external air source is arranged in the angle air cavity, the bottom of the air nozzle is rotationally connected with the inner wall of the bottom of the angle cavity, the middle of the air nozzle is connected with the inner wall and the outer wall of the angle cavity through a spring sealing element, pressure action chambers are formed between the air nozzle and the inner surface and the outer surface of the angle cavity through spring sealing elements, and the two pressure action chambers are connected to a pipeline connecting the angle air cavity and an external air source through a pipeline, the pipeline is provided with a control valve for controlling the air inlet proportion of the two pressure action chambers, and the circular table body is positioned in the pressure action chambers and is provided with a guide pipe which is in spiral connection with the plasma spray head assembly along the axial direction.
As a preferred scheme of the invention, the positioning and clamping device comprises a square station shell, a workpiece inlet cavity and a workpiece outlet cavity are arranged on two sides of the station shell, a rotating mechanism for driving a sensor on each station in the station shell to rotate is connected to the back side of the station shell through a telescopic device, a transmission chain mechanism for providing clamping stations of a plurality of sensors is arranged in the station shell, the transmission chain mechanism is driven to rotate through a driving wheel and a driven wheel which are arranged on the station shell, and the rotating mechanism is in contact with a transmission chain mechanism belt through the telescopic device in the sensor conveying process of the transmission chain mechanism, so as to drive the sensors on the stations to rotate.
As a preferable scheme of the invention, the rotating mechanism comprises a support plate which is on the same plane with the station shell, the telescopic devices are arranged on two sides of the support plate, the support plate is provided with driving motors with the same number as the stations, and output shafts of the driving motors are provided with bevel gears;
the transmission chain belt mechanism is including installing respectively the action wheel at station casing both ends, from the driving wheel to and the action wheel drives pivoted chain area from the driving wheel, just rotate on the chain belt install a plurality ofly with bevel gear complex circle seat cover the top and the bottom of seat cover the mirror image is provided with on the chain area vertically arc, just circle seat cover and two the arc forms the station.
As a preferable scheme of the invention, the bevel gear is rotationally connected with an electromagnetic ring, and the electromagnetic ring supplies power by being connected with an external circuit, so that the bevel gear is connected with the electromagnetic absorption of the circular seat sleeve, and a stable annular magnetic field is formed at a station through the electromagnetic ring.
As a preferable aspect of the present invention, the plasma spraying component and the positioning and clamping device are mounted on the bracket through a synchronous fine adjustment device, and the synchronous fine adjustment device synchronously adjusts the relative heights of the plasma spraying component and the positioning and clamping device through a negative feedback manner to determine the electric connection surface of the plasma spraying component formed on the surface of the node of the sensor in a controllable form.
As a preferable scheme of the present invention, the synchronous fine-tuning device includes a first support, a second support, a guide seat and an action executing mechanism, the plasma spraying assembly is fixedly mounted on the first support, the positioning and clamping device is mounted on the second support, the first support and the second support are both mounted on the support through the guide seat, the guide seat is disposed on two sides of the first support and the second support, a guide groove rail for the first support or the second support to slide up and down is disposed on the guide seat, the action executing mechanism is mounted on the support between the first support and the second support, and the action executing mechanism is configured to drive the first support and the second support to move up and down linearly along the guide groove rail.
As a preferable scheme of the present invention, the action executing mechanism includes a rotating shaft rotatably mounted on the bracket, the rotating shaft is driven to rotate by an external power source, both ends of the rotating shaft are connected with transmission gears in a key manner, two action shaft levers are rotatably connected on a certain diameter of the transmission gears in a mirror symmetry manner with the rotating shaft as a center, and the tail ends of the two action shaft levers, which are far away from the transmission gears, are rotatably connected with the end portions of the first support and the second support, which are located in the guide groove rail, respectively.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the controllable electric connection surface is formed on the node surface of the sensor quickly and uniformly in a plasma spraying mode by matching with the state combination of circular motion and linear motion of the sensor.
The invention is simultaneously suitable for optimizing the form of the conducting connection surface of the plurality of sensors when the plurality of sensors are electrically connected, and can accurately control the condition of larger discrete type in a plasma spraying mode, thereby realizing the accurate control of the electrical connection surface.
According to the invention, the thickness and size of the sensor node are controlled by using a plasma spraying mode, the problem of failure of a measuring point of the insulation layer conduction in the preparation process is effectively solved, a high-efficiency, wear-resistant and controllable node is formed, and the uncertainty of the measuring process is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
Fig. 1 is a schematic structural diagram of a plasma spraying conduction device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a plasma spray assembly according to an embodiment of the present invention;
FIG. 3 is a schematic view of a node surface structure of a sensor according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a pilot nozzle according to an embodiment of the present invention;
FIG. 5 is a schematic view of a drive chain mechanism according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a rotating mechanism according to an embodiment of the present invention.
The reference numerals in the drawings denote the following, respectively:
1-a scaffold; 2-positioning the clamping device; 3-plasma spraying the assembly; 301-plasma showerhead assembly; 4-guiding the spray head; 5-a rotating mechanism; 6-driving the chain belt mechanism; 7-a telescoping device; 8-synchronous fine adjustment device; 9-an action actuator; 10-electrical connection face; 11-a sensor; 12-nodal surface;
201-station shell; 202-an inlet chamber; 203-a discharge cavity; 204-driven wheel; 205-a driving wheel;
401-a cone; 402-angle air cavity; 403-gas nozzles; 404-a spring seal; 405-a pressure action chamber; 406-a guide tube;
501-a support plate; 502-a drive motor; 503-a bevel gear; 504-an electromagnet ring;
601-chain belt; 602-round seat cover; 603-arc shaped plates;
801-first support; 802-a second support; 803-guide groove track; 804-a guide seat;
901-a rotating shaft; 902-a drive gear; 903-action shaft.
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.
As shown in fig. 1 to 6, the present invention provides a coaxial thermocouple transient heat flow sensor node plasma spraying conduction device, which includes a bracket 1, a positioning and clamping device 2 mounted on the bracket 1 for providing multi-station clamping for a plurality of sensors, and a plasma spraying component 3 opposite to the positioning and clamping device 2, wherein the positioning and clamping device 2 is used for driving a sensor 11 to make synchronous circular motion and linear motion when the device is in operation, and the plasma spraying component 3 is matched with the positioning and clamping device 2 for forming an electrical connection surface 10 on a node surface 12 of the sensor 11.
The target sensor is a coaxial thermocouple transient heat flow sensor.
According to the invention, by means of plasma spraying and matching with the state combination of circular motion and linear motion of the sensors, controllable electric connection surfaces are quickly and uniformly formed on the surfaces of the nodes of the sensors, and the method is suitable for optimizing the forms of the conduction connection surfaces of the sensors when the sensors are electrically connected, can accurately control the discrete large condition of the plasma spraying mode, realizes accurate control of the electric connection surfaces, further realizes thickness and size control of the nodes of the sensors, effectively solves the problem of failure of a measurement point of insulation layer conduction in the preparation process, forms efficient, wear-resistant and controllable nodes, and reduces uncertainty of the measurement process.
In traditional plasma torch spraying process, adopt the spraying mode of directly becoming the piece mostly, and the spraying mode of directly becoming the piece is easy because the structure on sensor node surface influences and forms the circuit breakpoint, in order to solve this kind of problem, then theoretically adopt too thick conductive coating to avoid mostly, this just makes the node thickness of sensor increase, carries out the electric connection quantity reduction of sensor through the sensor node.
Therefore, the invention realizes the formation of an accurate and controllable shape on the node surface of the sensor by a plasma spraying mode through a multi-state synchronous regulation mode, thereby improving the stability of the electrical connection:
in the first state, the plasma spray module 3 itself is used to control the spray surface, and in this state, the sensor is in a stationary state.
Because the sensor is cylindrical in most cases, the spraying surface formed by the plasma beam matched with the sensor is also a circular surface, but when the node surface of the sensor is a non-circular surface, the existing plasma nozzle cannot be well adapted, and the spraying surfaces with different sizes need to be replaced by the nozzle;
to this end, the plasma spray component 3 of the present invention includes a plasma spray head assembly 301, and a pilot spray head 4 mounted on the plasma spray head assembly 301, the pilot spray head 4 being used to limit the width of a plasma beam sprayed by the plasma spray head assembly 301 in the radial direction of a nodal surface 12, and a controlled-profile electrical connection surface 10 being formed on the nodal surface 12.
In the initial state, the intersection point of the gas jet lines or jet planes formed by the four angle air chambers 402 is located on the central axis of the circular truncated cone 401. The diameter of the gas jet line or the wind eye of the jet plane formed by the four angle air cavities 402 is the same as that of the plasma beam formed by the plasma shower head.
An air nozzle 403 for supplying air through an external air source is arranged in the angle air cavity 402, and the bottom of the air nozzle 403 is rotatably connected with the inner wall of the bottom of the angle air cavity 402;
the middle of the air nozzle 403 is connected with the inner wall and the outer wall of the angle air chamber 402 through a spring seal 404, wherein the spring seal 404 is specifically composed of a spring capable of realizing radial compression and sealing rubber coated on the surface of the spring, and the spring does not support deformation in the axial direction;
the air nozzle 403 and the angle air cavity 402 are internally and externally provided with pressure action chambers 405 formed by the spring sealing elements 404, the two pressure action chambers 405 are connected to a pipeline connected with the angle air cavity 402 and an external air source through the pipeline, the pipeline is provided with a control valve for controlling the air inlet proportion of the two pressure action chambers 405, in the actual working process, the air pressure of the pressure action chambers 405 positioned at the two sides of the air nozzle 403 is controlled through the control valve, so as to stress the surface of the air nozzle 403, the air nozzle 403 rotates around the rotation connection with the angle air cavity 402, and further the angle is adjusted.
The angle adjustment of the gas nozzle 403 can achieve two effects, that is, the gas nozzle 403 sprays the shielding gas to isolate and protect the plasma beam-formed spray surface, and the gas nozzle 403 sprays the shielding gas to discretely bind the plasma beam edge, or the gas nozzle 403 sprays the gas with a flow velocity higher than that of the plasma beam to guide the plasma beam edge.
Further, when two opposite air nozzles 403 of one set are closed and two opposite air nozzles 403 of the other set are opened, the width of the plasma coating can be controlled in the radial direction of the node surface, and when the node surfaces of the sensors connected in parallel are communicated, the air nozzles 403 in the parallel direction are opened, the air nozzles 403 in the vertical parallel direction are closed, so that the two adjacent air nozzles 403 form an interlaced area at the joint of the two adjacent sensor node surfaces, and the effect of the electrical connection of the two adjacent sensor node surfaces, which is influenced by the thinner or missing coating of the two adjacent sensor node surfaces due to the fact that the spraying is performed by adopting a single plasma nozzle and a transverse linear movement mode, can be effectively avoided.
The cone 401 is located inside the pressure operation chamber 405, and is provided with a guide pipe 406 that is screwed to the plasma shower head assembly 301.
In a second state, the plasma spray assembly 3 itself is used to control the spray surface, and in this state, the sensor is in a combination of circular rotation or circular rotation and linear motion:
therefore, the positioning and clamping device 2 comprises a square station shell 201, a workpiece inlet cavity 202 and a workpiece outlet cavity 203 are arranged on two sides of the station shell 201, a rotating mechanism 5 for driving a sensor 11 on each station in the station shell to rotate is connected to the back side of the station shell 201 through a telescopic device 7, a transmission chain belt mechanism 6 for providing clamping stations of a plurality of sensors is arranged in the station shell 201, the transmission chain belt mechanism 6 is driven to rotate through a driving wheel 205 and a driven wheel 204 which are arranged on the station shell 201, and in the process that the transmission chain belt mechanism 6 carries out conveying of the sensors 11, the rotating mechanism 5 is in contact with the transmission chain belt mechanism 6 through the telescopic device 7, and then the sensors 11 on the stations are driven to rotate.
The rotating mechanism 5 comprises a support plate 501 which is on the same plane with the station shell 201, the telescopic devices 7 are installed on two sides of the support plate 501, the support plate 501 is provided with driving motors 502 which are the same in number as the stations, and bevel gears 503 are installed on output shafts of the driving motors 502;
the transmission chain belt mechanism 6 comprises a chain belt 601 driven by a driving wheel 205 and a driven wheel 204 to rotate respectively, a plurality of circular seat sleeves 602 matched with bevel gears 503 are rotatably installed on the chain belt 601, arc-shaped plates 603 perpendicular to the chain belt 601 are arranged on the chain belt 601 at the top and the bottom of the circular seat sleeves 602 in a mirror image mode, and the circular seat sleeves 602 and the two arc-shaped plates 603 form stations.
The outer ring of the bevel gear 503 is rotatably connected with an electromagnetic ring 504, and the electromagnetic ring 504 supplies power by being connected with an external circuit, so that the bevel gear 503 and the round seat sleeve 602 realize electromagnetic adsorption connection, and a stable annular magnetic field is formed at a station through the electromagnetic ring 504, and the electromagnetic ring 504 has three functions: firstly, the bevel gear 503 and the round seat sleeve 602 are connected and separated in an electromagnetic adsorption manner by utilizing the electromagnetic separation, so that the loading and the separation of the sensor and the station are completed; secondly, the bevel gear 503 and the circular seat sleeve 602 are connected in an electromagnetic adsorption mode through an electromagnetic isolation mode, so that the chain belt 601 and the bevel gear 503 are connected tightly, the stability in the transmission process is improved, thirdly, the electromagnetic adsorption capacity is enhanced, edge plasma generated in the plasma beam spraying process is projected on the surface of a station through a magnetic field formed by the electromagnetic ring on the station, the adhesion of the edge plasma to the surface of the sensor is reduced, and the possibility of electric connection and conduction between the node plane of the sensor and other parts is reduced.
The plasma spraying component 3 and the positioning and clamping device 2 are arranged on the bracket 1 through a synchronous fine adjustment device 8, and the synchronous fine adjustment device 8 synchronously adjusts the relative heights of the plasma spraying component 3 and the positioning and clamping device 2 in a negative feedback mode to determine the electric connection surface of the plasma spraying component 3 in a controllable form formed on the node surface 12 of the sensor 11.
The synchronous fine-tuning device 8 comprises a first support 801, a second support 802, a guide seat 804 and an action executing mechanism 9, the plasma spraying component 3 is fixedly arranged on the first support 801, the positioning and clamping device 2 is arranged on the second support 802, the first support 801 and the second support 802 are both arranged on the support 1 through the guide seat 804, the guide seat 804 is arranged at two sides of the first support 801 and the second support 802, the guide seat 804 is provided with a guide groove rail 803 for the first support 801 or the second support 802 to slide up and down, the action executing mechanism 9 is arranged on the support 1 between the first support 801 and the second support 802, the action executing mechanism 9 is used for driving the first support 801 and the second support 802 to move linearly up and down along the guide groove rail 803, so that the plasma spraying component 3 moves in the radial direction of the sensor node plane, and combines the opening and closing actions of the gas nozzle 403 under the static state of the sensor, the strip-shaped electric connection surface can be formed on the node plane of the sensor, so that the strip-shaped electric connection surface can be used for selecting the connection and conduction of the positive electrodes of the multiple parallel sensors, the connection and conduction of the positive electrodes and the negative electrodes of the multiple parallel sensors and the like, and the node conduction requirements of the sensors with different requirements are improved.
The action executing mechanism 9 comprises a rotating shaft 901 which is rotatably installed on the support 1, the rotating shaft 901 is driven to rotate by an external power source, two ends of the rotating shaft 901 are connected with a transmission gear 902 in a key mode, a certain diameter of the transmission gear 902 is connected with two action shaft rods 903 in a mirror symmetry mode by taking the rotating shaft 901 as a center, and the tail ends of the two action shaft rods 903 far away from the transmission gear 902 are respectively connected with the end parts of the first support 801 and the second support 802, which are located in the guide groove rail 803, in a rotating mode.
Specifically, the negative feedback mode is that when the motion actuator 9 pulls the first support 901 to move upward on the guide track 904, the second support 902 is driven to move downward in the guide track 904, so as to move the plasma beam of the plasma spraying component 3 in the radial direction of the target sensor 10.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.
Claims (7)
1. The plasma spraying and conducting device for the transient heat flow sensor node of the coaxial thermocouple is characterized by comprising a support (1), a positioning and clamping device (2) and a plasma spraying assembly (3), wherein the positioning and clamping device (2) is installed on the support (1) and used for providing multi-station clamping for a plurality of sensors, the plasma spraying assembly (3) is right opposite to the positioning and clamping device (2), the positioning and clamping device (2) is used for driving the sensors (11) to do synchronous circular motion and linear motion when the device works, and the plasma spraying assembly (3) is matched with the positioning and clamping device (2) and used for forming an electric connecting surface (10) on a node surface (12) of each sensor (11);
the plasma spraying component (3) comprises a plasma spray head assembly (301) and a guide spray head (4) installed on the plasma spray head assembly (301), wherein the guide spray head (4) is used for limiting the width of a plasma beam sprayed by the plasma spray head assembly (301) in the radial direction of a node surface (12), and an electric connection surface (10) with a controllable shape is formed on the node surface (12);
the guide spray head (4) comprises a circular truncated cone body (401) in spiral connection with the plasma spray head assembly (301), an angle air cavity (402) is arranged inside the inner wall of the circular truncated cone body (401), an air nozzle (403) for supplying air through an external air source is arranged in the angle air cavity (402), the bottom of the air nozzle (403) is rotatably connected with the inner wall of the bottom of the angle air cavity (402), the middle of the air nozzle (403) is connected with the inner wall and the outer wall of the angle air cavity (402) through a spring sealing element (404), pressure action chambers (405) are formed between the air nozzle (403) and the inner surface and the outer surface of the angle air cavity (402) through the spring sealing element (404), the two pressure action chambers (405) are connected to a pipeline for connecting the angle air cavity (402) and the external air source through pipelines, and control valves for controlling the air intake proportion of the two pressure action chambers (405) are arranged on the pipelines, the cone body (401) is positioned in the pressure action chamber (405), and a guide pipe (406) which is spirally connected with the plasma spray head assembly (301) is arranged along the axial direction.
2. The plasma spraying and conducting device for the transient heat flow sensor node of the coaxial thermocouple according to claim 1, wherein the positioning and clamping device (2) comprises a square station shell (201), a workpiece inlet cavity (202) and a workpiece outlet cavity (203) are arranged on two sides of the station shell (201), a rotating mechanism (5) for driving a sensor (11) on each station in the station shell to rotate is connected to the back side of the station shell (201) through a telescopic device (7), a transmission chain belt mechanism (6) for providing clamping stations of a plurality of sensors is arranged in the station shell (201), the transmission chain belt mechanism (6) is driven to rotate by a driving wheel (205) and a driven wheel (204) arranged on the station shell (201), and the transmission chain belt mechanism (6) is used for conveying the sensors (11), the rotating mechanism (5) is in contact with the transmission chain belt mechanism (6) through a telescopic device (7), and then drives a sensor (11) on the station to rotate.
3. The plasma spraying conduction device of the coaxial thermocouple transient heat flow sensor node as claimed in claim 2, characterized in that the rotating mechanism (5) comprises a support plate (501) which is on the same plane with the station housing (201), the telescopic devices (7) are installed on two sides of the support plate (501), the support plate (501) is provided with the same number of driving motors (502) as the stations, and the output shaft of the driving motor (502) is provided with a bevel gear (503);
the transmission chain belt mechanism (6) comprises a chain belt (601) which is driven to rotate by a driving wheel (205) and a driven wheel (204) respectively, a plurality of circular seat sleeves (602) matched with bevel gears (503) are rotatably mounted on the chain belt (601), the tops and the bottoms of the circular seat sleeves (602) are provided with arc-shaped plates (603) which are perpendicular to the chain belt (601) in a mirror image mode, and the circular seat sleeves (602) and the arc-shaped plates (603) form stations.
4. The plasma spraying conduction device of the transient heat flow sensor node of the coaxial thermocouple according to claim 3, wherein an electromagnetic ring (504) is rotatably connected to the outer ring of the bevel gear (503), and the electromagnetic ring (504) is powered by connecting an external circuit, so that the bevel gear (503) and the circular seat sleeve (602) are in electromagnetic adsorption connection, and a stable annular magnetic field is formed at a station through the electromagnetic ring (504).
5. The plasma spraying conduction device for the transient heat flow sensor node of the coaxial thermocouple according to claim 1, is characterized in that the plasma spraying component (3) and the positioning and clamping device (2) are installed on the bracket (1) through a synchronous fine adjustment device (8), and the synchronous fine adjustment device (8) synchronously adjusts the relative heights of the plasma spraying component (3) and the positioning and clamping device (2) in a negative feedback mode to determine the electric connection surface with controllable form formed by the plasma spraying component (3) on the node surface (12) of the sensor (11).
6. The plasma spraying conduction device of the transient heat flow sensor node of the coaxial thermocouple according to claim 5, characterized in that the synchronous fine adjustment device (8) comprises a first support (801), a second support (802), a guide seat (804) and an action execution mechanism (9), the plasma spraying assembly (3) is fixedly installed on the first support (801), the positioning and clamping device (2) is installed on the second support (802), the first support (801) and the second support (802) are both installed on the bracket (1) through the guide seat (804), the guide seat (804) is arranged on two sides of the first support (801) and the second support (802), the guide seat (804) is provided with a guide groove rail (803) for the first support (801) or the second support (802) to slide up and down, the action executing mechanism (9) is installed on the support (1) between the first support (801) and the second support (802), and the action executing mechanism (9) is used for driving the first support (801) and the second support (802) to move linearly up and down along the guide groove rail (803).
7. The plasma spraying conduction device of the transient heat flow sensor node of the coaxial thermocouple according to claim 6, characterized in that the action actuator (9) comprises a rotating shaft (901) rotatably mounted on the support (1), the rotating shaft (901) is driven to rotate by an external power source, both ends of the rotating shaft (901) are respectively connected with a transmission gear (902) in a key manner, two action shaft rods (903) are rotatably connected on a certain diameter of the transmission gear (902) in a mirror symmetry manner with the rotating shaft (901) as a center, and the tail ends of the two action shaft rods (903) far away from the transmission gear (902) are respectively rotatably connected with the ends of the first support (801) and the second support (802) located in the guide groove rail (803).
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| CN202011410747.6A CN112410720B (en) | 2020-12-04 | 2020-12-04 | Coaxial thermocouple transient heat flow sensor node plasma spraying conduction device |
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| CN202011410747.6A CN112410720B (en) | 2020-12-04 | 2020-12-04 | Coaxial thermocouple transient heat flow sensor node plasma spraying conduction device |
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| CN112410720B true CN112410720B (en) | 2021-06-11 |
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| CN104404437A (en) * | 2014-11-25 | 2015-03-11 | 西安交通大学 | Low-power plasma spraying method for substantially improving gasification of flight particles |
| CN107313000A (en) * | 2017-06-30 | 2017-11-03 | 扬州大学 | A kind of oil-gas transportation valve body plasma spraying device and its application method |
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2020
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404437A (en) * | 2014-11-25 | 2015-03-11 | 西安交通大学 | Low-power plasma spraying method for substantially improving gasification of flight particles |
| CN107313000A (en) * | 2017-06-30 | 2017-11-03 | 扬州大学 | A kind of oil-gas transportation valve body plasma spraying device and its application method |
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