CN110308178B - Intelligent detection system for ablation performance of ablation-resistant material - Google Patents
Intelligent detection system for ablation performance of ablation-resistant material Download PDFInfo
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- CN110308178B CN110308178B CN201910508487.7A CN201910508487A CN110308178B CN 110308178 B CN110308178 B CN 110308178B CN 201910508487 A CN201910508487 A CN 201910508487A CN 110308178 B CN110308178 B CN 110308178B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
- G01N25/22—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures
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Abstract
The invention relates to an intelligent detection system for ablation performance of ablation-resistant materials, which comprises an automatic feeding and thickness measuring device, a sliding table material conveying device, an automatic ablation testing device and an automatic blanking and thickness measuring device, wherein the automatic feeding and thickness measuring device, the automatic ablation testing device and the automatic blanking and thickness measuring device are respectively arranged beside the sliding table material conveying device, and water-cooling sample boxes on the sliding table material conveying device respectively stop at station positions of the automatic feeding and thickness measuring device, the automatic ablation testing device and the automatic blanking and thickness measuring device in an ablation testing process to finish automatic feeding and thickness measuring, automatic ablation, automatic blanking and thickness measuring work. The invention has the functions of intelligent processing of test data, automatic generation of a database and intelligent statistical analysis. The ablation performance indexes of the material, such as the line ablation rate, the mass ablation rate, the back temperature and the heat insulation index, can be obtained simultaneously in one test.
Description
Technical Field
The invention relates to a detection system for ablation performance of an ablation-resistant material, in particular to an intelligent detection system for ablation performance of an ablation-resistant material.
Background
The ablation material has the advantages of high heat-proof efficiency, reliable work, strong capability of adapting to flow field change and the like, is widely applied to the industries with very strict requirements on aviation, space navigation, missile, nuclear industry, heating furnace manufacturing and working conditions, the ablation performance evaluation index of the ablation material is mainly characterized by ablation rate at present, and in a solid rocket engine, the ablation material plays a dual role of protecting the engine and controlling a propellant to burn according to certain design requirements, so how the performance of the ablation material is, the working state, reliability and signal characteristics of the rocket engine can be directly influenced, and the ablation rate is rapidly, accurately and completely tested, so that the ablation material has important significance for research and use of the ablation material.
At present, the ablation performance test of domestic industries mainly adopts a two-person common operation mode, operators in a test room load a cylindrical sample into a water-cooling sample box, and the operators in the test room start an ablation machine after the operators are 1 m away from the sample box. The prior art has the following defects:
(1) the testing efficiency is low
The ablation test adopts a common operation mode of two persons, one person is responsible for controlling the system, the other person is responsible for loading and unloading the cylindrical sample to be tested, the two persons are closely matched for 1 hour to test about 20 cylindrical samples, and the labor productivity of the person is low.
(2) Low intrinsic safety
Because the temperature of the ablation flame is about 3000 ℃ in the test process, if the control system is not closely matched with the personnel responsible for loading and unloading, the rotation of the ablation gun head is easy to happen, and the burning accidents of the face and the arms are easy to happen.
(3) Quality control depends on the experience and responsibility of the testing personnel
At present, a micrometer is adopted to measure the thickness before and after ablation, an operator manually moves an ablation cylindrical sample to find the lowest point, a carbon layer of the ablated cylindrical sample is in a loose state, the carbon layer is easily damaged by the contact of a micrometer gauge head, the accuracy of the line ablation rate is reduced, and the line ablation rate of the ablation cylindrical sample cannot be normally represented.
(4) Before and after ablation, thickness and quality measurement data need to be manually recorded on an original record book one by one, and abnormal values of the line ablation rate and the quality ablation rate are rejected through a scientific calculator or a computer, so that the calculation is complicated, the data size is large, and the manual error probability is high.
Disclosure of Invention
The invention aims to solve the technical problem of providing an intelligent detection system for ablation performance of an ablation-resistant material so as to solve the problem of automatic test of the ablation performance of a sample to be tested.
In order to solve the existing technical problems, the technical scheme adopted by the invention is as follows: the utility model provides an intelligent detecting system of resistant ablation material ablation performance, passes material device, automatic ablation testing arrangement and automatic unloading and thickness measurement device, its characterized in that including automatic feeding and thickness measurement device, slip table:
the automatic feeding and thickness measuring device, the automatic ablation testing device and the automatic blanking and thickness measuring device are respectively arranged beside the sliding table material conveying device, and a water-cooled sample box on the sliding table material conveying device respectively stops at the station positions of the automatic feeding and thickness measuring device, the automatic ablation testing device and the automatic blanking and thickness measuring device in the ablation testing process to complete the work of automatic feeding and thickness measuring, automatic ablation, automatic blanking and thickness measuring;
the automatic feeding and thickness measuring device comprises a thickness gauge, a feeding disc, a vacuum chuck, a movable beam, the thickness gauge and a chuck guide rail, wherein the feeding disc, the thickness gauge and the chuck guide rail are respectively fixed on an iron support; the movable beam is arranged on the thickness gauge and the sucker guide rail and moves back and forth on the thickness gauge and the sucker guide rail; the thickness gauge and the vacuum chuck are arranged on the movable cross beam, and the thickness measurement and the absorption of each sample in the feeding disc are realized through the movable cross beam, and the absorbed sample is placed in a water-cooled sample box on the sliding table material conveying machine;
the sliding table material conveying device comprises a water-cooled sample box, a pushing water-cooled sample box cylinder and a sample box moving guide rail, wherein a hole suitable for a sample to enter the water-cooled sample box is formed in the upper portion of the water-cooled sample box; the water-cooled sample box is arranged on the sample box moving guide rail, and is moved to the ablation position of the automatic ablation testing device through the sample box moving guide rail for ablation, and after ablation is completed, the water-cooled sample box is moved to the blanking area of the automatic blanking and thickness measuring device through the sample box moving guide rail;
the automatic blanking and thickness measuring device comprises a blanking carrier, a blanking disc, a sample jacking cylinder and a pushing blanking carrier cylinder, wherein the blanking disc is fixed on an iron support, the pushing blanking carrier cylinder is vertically arranged at the front end of a water-cooled sample box in a blanking area, the blanking carrier is vertically arranged at the rear end of the water-cooled sample box in the blanking area, the water-cooled sample box moves to the blanking area, the pushing blanking carrier cylinder is started to push a sample after ablation into the blanking carrier, the blanking carrier overturns the sample to a horizontal position vertically, the sample jacking cylinder pushes the sample out of the blanking carrier into the blanking box, and the blanking box moves a shaft through the blanking disc to move to the position of a thickness gauge on the automatic blanking and thickness measuring device to measure the sample.
The automatic ablation testing device comprises an ablation gun head and an ablation time counter, wherein combustion gas is introduced into the ablation gun head, the flow and pressure values of the combustion gas are set through a control device according to test conditions, and the ablation gun head is vertical to a sample in a water-cooled sample box to ignite and ablate the sample.
The intelligent detection system can also comprise an upper computer, wherein the upper computer receives measurement and test data and stores, processes and displays the acquired data.
The invention realizes automatic loading and unloading, automatic transmission, automatic test and intelligent data processing, and replaces manual operation. The thickness detection before and after ablation automatically measures the thickness of the cylindrical sample before and after ablation by a non-contact automatic measurement method and automatically uploads the data to an upper computer, and a dial gauge does not need to be manually compared to obtain a numerical value, so that the measurement accuracy is improved. The man-machine isolation concept is introduced, so that the intrinsic safety is realized, and the unstable ablation or personal injury caused by improper operation of personnel is avoided. All detection data are uploaded to an upper computer system in real time, data processing is carried out, a report is automatically generated, and the ablation cylindrical sample tracing can be realized.
Has the beneficial effects that:
the invention has the functions of intelligent processing of test data, automatic generation of database and intelligent statistical analysis. The ablation performance indexes of the material, such as the line ablation rate, the mass ablation rate, the back temperature and the heat insulation index, can be obtained simultaneously in one test.
(1) The ablation performance of the ablation material is intelligently detected, the continuous and quick feeding, discharging, transmission and testing work of the cylindrical sample can be realized, and the man-machine isolation is realized in the ablation process.
(2) The thickness and the temperature of the cylindrical sample are measured in a non-contact manner, so that the cylindrical sample after ablation cannot be damaged, and the measurement accuracy is improved.
(3) Test data is automatically acquired, automatically processed, intelligently diagnosed, analyzed, stored and transmitted, and the test efficiency can be improved by more than three times.
(4) Multiple ablation performance indexes such as the line ablation rate, the back temperature and the like of the material can be obtained simultaneously through one test, and the cost is effectively reduced.
(5) After the method is applied, the conventional measurement equipment and method in the ablation industry can be changed, and the method has great popularization value.
Drawings
FIG. 1 is a schematic diagram of an intelligent detection system for ablation performance of an ablation-resistant material;
the mark in the figure is: the device comprises a 1-automatic feeding and thickness measuring device, a 2-sliding table material conveying device, a 3-automatic ablation testing device and a 4-automatic discharging and thickness measuring device.
FIG. 2 is a schematic view of an automatic feeding and thickness measuring device;
the labels in the figure are: 5-thickness gauge, 6-feeding tray, 7-vacuum chuck, 8-movable beam, 9-thickness gauge and chuck guide rail.
FIG. 3 is a schematic view of a material conveying device of the slide table;
the labels in the figure are: 10-water-cooled sample box, 11-water receiving pipe, 12-pushing water-cooled sample box cylinder and 13-sample box moving guide rail.
FIG. 4 is a schematic view of an automatic blanking and thickness measuring apparatus;
the labels in the figure are: 14-blanking carrier, 15-blanking disc, 16-sample jacking cylinder, 17-pushing-in blanking carrier cylinder and 18-blanking disc moving shaft.
Detailed Description
The invention is further illustrated by the following specific embodiments in conjunction with the accompanying drawings.
As shown in fig. 1, an intelligent detection system for ablation performance of ablation-resistant material comprises an automatic feeding and thickness measuring device 1 for cylindrical samples, a sliding table material conveying device 2, an automatic ablation testing device 3, and an automatic blanking and thickness measuring device 4 for cylindrical samples. The automatic feeding thickness measuring device 1, the automatic ablation testing device 3 and the automatic blanking and thickness measuring device 4 of the cylindrical sample are placed on an iron stand and are independent stations. The sliding table material conveying device 2 is arranged right in front of the three devices, and the water-cooled sample boxes 10 on the sliding table material conveying device 2 stay at the three station positions respectively through a preset program in the ablation test process, so that the automatic feeding thickness measurement, the automatic ablation, the automatic blanking and the thickness measurement are completed.
As shown in fig. 2, the automatic feeding thickness measuring device 1 is composed of a thickness gauge 5, a feeding tray 6, a vacuum chuck 7, a movable beam 8, a thickness gauge and a chuck guide rail 9. The feeding plate 6, the thickness gauge and the sucker guide rail 9 are fixed on an iron stand and move left and right through a rotating shaft, the movable beam 8 moves back and forth on the thickness gauge and the sucker guide rail 9, the thickness gauge 5 and the vacuum sucker 7 are embedded on the movable beam 8, and each sample is measured in thickness and sucked through the movement of the movable beam 8. And manually placing 0-100 cylindrical samples in the feeding tray 6 in sequence, moving the movable beam 8 to enable the thickness gauge 5 to be above the appointed cylindrical sample, longitudinally scanning the cylindrical samples by the thickness gauge, measuring parameters such as the appearance, the thickness and the like of the samples, taking the lowest point in a required range as data before ablation, and recording, transmitting and storing the data. After the thickness of all samples is measured, the movable beam 8 drives the vacuum chuck 7 to a position above the appointed cylindrical sample to suck the cylindrical ablation sample, and the cylindrical ablation sample is placed in the water-cooling sample box 10 in the sliding table material conveying machine 2, so that the feeding work is completed.
As shown in fig. 3, the sliding table material conveying device 2 is composed of a water-cooled sample box 10, a water receiving pipe 11, a cylinder 12 for pushing the water-cooled sample box, and a sample box moving guide rail 13. Water-cooling sample box 10, water receiving pipe 11, the water-cooling sample box cylinder 12 of pushing in moves on sample box movable guide 13 as a whole, and sample size round hole is opened on water-cooling sample box 10 upper portion, and the sample that vacuum chuck 7 absorbed is put into from this hole, pushes in water-cooling sample box cylinder 12 and pushes up the sample of putting into to water-cooling sample box 10 front end, and the front end has the boss, guarantees that the sample does not go out, and the cooling water circulation cooling is led to at water receiving pipe 11 both ends. Moved to the position of the automated ablation test apparatus 3 by the cartridge moving guide 13.
The automatic ablation testing device 3 comprises an ablation gun head, an oxy-acetylene control device and an ablation time counter, wherein the ablation gun head is vertically and water-cooled to form a sample box 10, oxygen and acetylene gas are introduced into the sample box, aerobic-acetylene flow and pressure values are set according to test conditions, a vertical ablation sample is ignited, the oxy-acetylene control device and the ablation time counter are independent units, the oxy-acetylene control device ensures the oxy-acetylene flow and pressure, and the ablation time counter ensures ablation time.
As shown in fig. 4, the automatic blanking and thickness measuring apparatus 4 includes a blanking carrier 14, a blanking tray 15, a sample jack-up cylinder 16, a push-in blanking carrier cylinder 17, and a blanking tray moving shaft 18. A blanking disc 15 is fixed on an iron support and moves left and right through a rotating shaft, a blanking carrier air cylinder 17 is pushed to be perpendicular to the front end of a water-cooled sample box 10, a blanking carrier 14 is perpendicular to the rear end of the water-cooled sample box 10, after ablation test is finished, the water-cooled sample box 10 moves to a blanking area, the blanking carrier air cylinder 17 is pushed to be started to push ablated samples into the blanking carrier 14, the blanking carrier 14 turns cylindrical samples from vertical reverse needle positions to a horizontal position through gear racks, the cylindrical samples are ejected out of the blanking carrier 14 through the sample ejecting cylinder 16 at the horizontal position, and the cylindrical samples are pushed into the blanking carrier 15 through a material pushing plate. The blanking box 15 can move through the blanking disc moving shaft 18, the thickness gauge on the automatic blanking and thickness measuring device 4 longitudinally scans the cylindrical sample, measures parameters such as the appearance and the thickness of the sample, takes the lowest point in a required range as data after ablation, and records, transmits and stores the data. And uploading all the measurement and test data to an upper computer. And the upper computer stores and displays the acquired data, and automatically calculates parameters such as the average value, the standard deviation, the adiabatic index, the coefficient of variation and the like of the cylindrical sample according to the 'Grabbs criterion'.
Claims (3)
1. The utility model provides an intelligent detecting system of resistant ablation material ablation performance, passes material device (2), automatic ablation testing arrangement (3) and automatic unloading and thickness measurement device (4) including automatic feeding and thickness measurement device (1), slip table, its characterized in that:
the automatic feeding and thickness measuring device (1), the automatic ablation testing device (3) and the automatic blanking and thickness measuring device (4) are respectively arranged beside the sliding table material conveying device (2), and a water-cooled sample box (10) on the sliding table material conveying device (2) respectively stops at the station positions of the automatic feeding and thickness measuring device (1), the automatic ablation testing device (3) and the automatic blanking and thickness measuring device (4) in the ablation testing process to complete the work of automatic feeding and thickness measuring, automatic ablation, automatic blanking and thickness measuring;
the automatic feeding and thickness measuring device (1) comprises a thickness gauge (5), a feeding disc (6), a vacuum chuck (7), a movable cross beam (8), a thickness gauge and a chuck guide rail (9), wherein the feeding disc (6), the thickness gauge and the chuck guide rail (9) are respectively fixed on an iron stand; the movable beam (8) is arranged on the thickness gauge and the sucker guide rail (9) and moves back and forth on the thickness gauge and the sucker guide rail (9); the thickness gauge (5) and the vacuum chuck (7) are arranged on the movable beam (8), and the thickness measurement and the suction of each sample in the feeding tray (6) are realized through the movable beam (8), and the sucked sample is placed in a water-cooled sample box (10) on the sliding table material conveying machine (2);
the sliding table material conveying device (2) comprises a water-cooled sample box (10), a pushing-in water-cooled sample box air cylinder (12) and a sample box moving guide rail (13), wherein a hole suitable for a sample to enter the water-cooled sample box (10) is formed in the upper portion of the water-cooled sample box (10), a boss is arranged at the front end of the water-cooled sample box (10), the vacuum chuck (7) is used for placing the sucked sample into the water-cooled sample box (10) from the hole in the upper portion of the water-cooled sample box (10), the pushing-in water-cooled sample box air cylinder (12) is used for pushing the sample placed into the water-cooled sample box (10) onto the boss in the front end of the water-cooled sample box (10), a water receiving pipe (11) is installed on the water-cooled sample box (10), and cooling water is introduced into two ends of the water receiving pipe (11) to circularly cool the water-cooled sample box (10); the water-cooled sample box (10) is arranged on a sample box moving guide rail (13) and is moved to an ablation position of the automatic ablation testing device (3) through the sample box moving guide rail (13) to perform ablation, and after the ablation is finished, the water-cooled sample box (10) is moved to a blanking area of the automatic blanking and thickness measuring device (4) through the sample box moving guide rail (13);
the automatic blanking and thickness measuring device (4) comprises a blanking carrier (14), a blanking disc (15), a sample jacking cylinder (16) and a pushing blanking carrier cylinder (17), wherein the blanking disc (15) is fixed on an iron support, the pushing blanking carrier cylinder (17) is vertically arranged at the front end of a water-cooled sample box (10) in a blanking area, the blanking carrier (14) is vertically arranged at the rear end of the water-cooled sample box (10) in the blanking area, the water-cooled sample box (10) is moved to the blanking area, a blanking carrier air cylinder (17) is pushed in to start to push the ablated sample into a blanking carrier (14), the blanking carrier (14) turns the sample to the horizontal position from the vertical position, the sample is ejected out of the blanking carrier (14) into a blanking box (15) by a sample jacking air cylinder (16), and the blanking box (15) moves to the position of a thickness gauge on an automatic blanking and thickness measuring device (4) through a blanking disc moving shaft (18) to measure the sample.
2. The intelligent detection system according to claim 1, wherein: the automatic ablation testing device (3) comprises an ablation gun head and an ablation time counter, combustion gas is introduced into the ablation gun head, the flow rate and pressure value of the combustion gas are set through a control device according to test conditions, and the ablation gun head is vertical to a sample in the water-cooled sample box (10) to ignite and ablate the sample.
3. The intelligent detection system according to claim 1, wherein: the intelligent detection system further comprises an upper computer, and the upper computer receives the measurement and test data and stores, processes and displays the acquired data.
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| CN201910508487.7A CN110308178B (en) | 2019-06-13 | 2019-06-13 | Intelligent detection system for ablation performance of ablation-resistant material |
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| CN103149112A (en) * | 2013-04-03 | 2013-06-12 | 大连理工大学 | Method for measuring ablation resistance characteristic of materials |
| CN206321597U (en) * | 2016-11-23 | 2017-07-11 | 天津浩岩科技开发有限公司 | A kind of gear infrared detecting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102011101733B4 (en) * | 2011-05-17 | 2012-12-06 | Ika-Werke Gmbh & Co. Kg | Combustion calorimeter with a decomposition vessel |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149112A (en) * | 2013-04-03 | 2013-06-12 | 大连理工大学 | Method for measuring ablation resistance characteristic of materials |
| CN206321597U (en) * | 2016-11-23 | 2017-07-11 | 天津浩岩科技开发有限公司 | A kind of gear infrared detecting device |
Non-Patent Citations (1)
| Title |
|---|
| 大容量断路器喷口材料烧蚀性能的试验研究;李卫国 等;《绝缘材料》;20160330;第49卷(第3期);64-67 * |
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