CN109238871A - Explosive column axis radial deformation non-contact measurement apparatus under a kind of temperature loading environment - Google Patents
Explosive column axis radial deformation non-contact measurement apparatus under a kind of temperature loading environment Download PDFInfo
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- CN109238871A CN109238871A CN201811030826.7A CN201811030826A CN109238871A CN 109238871 A CN109238871 A CN 109238871A CN 201811030826 A CN201811030826 A CN 201811030826A CN 109238871 A CN109238871 A CN 109238871A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0057—Generation of the force using stresses due to heating, e.g. conductive heating, radiative heating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0224—Thermal cycling
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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Abstract
The present invention discloses explosive column axis radial deformation non-contact measurement apparatus under a kind of temperature loading environment, including temperature loading unit 1, powder column radial deformation distance measuring unit 2, powder column axial deformation amount distance measuring unit 3.The present invention be suitable for multiple sample axial deformation amount and single-shot powder column radial deformation non-contact real-time detection, solve the problems, such as multiple powder column axial deformation amount can not measure simultaneously under current the same terms, radial deformation can not real-time detection；Top, side test windows use heat-resisting high-boron-silicon glass, guarantee that form will not be ruptured because biggish temperature change is generated in the short period in the case where high and low temperature environment temperature shock changes；Refrigeration system makes equipment run smoothly with explosion-proof high-low-temperature environmental test chamber separation design to reduce the vibration of environmental cabinet at work, improves the measurement accuracy of measurement sensor；In addition, compared with prior art, measuring accuracy magnitude is increased to 0.001mm from 0.01mm.
Description
Technical field
The present invention relates to the axis radial deformation non-contact measurement apparatus under a kind of temperature loading environment, in particular to one
Axis radial deformation non-contact measurement apparatus of the kind explosive column under temperature loading environment, is suitable for explosive column in height
Temperature circulation, the real-time detection of impact condition prescribe medicine axis of a cylinder radial dimension variation.
Background technique
Environment temperature can make the axis radial dimension of the explosive column loaded in ammunition generate variation, even irreversible change
Change.Under the conditions of violent temperature change, the variation of explosive column size can cause the flaw in propellant such as bottom gap, annular space, crackle, right
The service performance of ammunition causes tremendous influence, so that the probability that weaponry breaks down obviously increases.At present to explosive column
There are two main classes for the research means that change in size is detected: first is that taking out after powder column is carried out thermocycling and utilizing vernier
The diameter of the rangings tool hand dipping such as slide calliper rule test front and back powder column, height；Second is that the heat engine according to specified in GJB 772A-97
Tool analytic approach and dilatometer method measure the linear expansion coefficient of powder column.All there is fatefulue defect in both measurement means.
The deformation quantity that the first measurement means can only test front and back to powder column measures, and can not examine in real time to change in size in the process
It surveys, and utilizes the rangings tool hand dippings such as vernier caliper, measurement accuracy is low, manual measurement bring error is big, exists simultaneously
Manually the dangerous material after temperature change are carried out face-to-face directly to operate the biggish security risk of bring；Second of measurement means
Although can be measured in real time to change in size process of the powder column under temperature loading environment, it can only be in constraint item
The Axial changes of powder column measure (in quartz ampoule) under part, and furthermore thermomechanical analysis and dilatometer method are all to the size of sample
There is stringent limitation, the sample diameter being capable of measuring is no more than 5mm, and influence of the dimensional effect bring of powder column to deformation quantity is simultaneously
Do not consider；In addition, the prior art can not all carry out the real-time inspection of axis radial deformation to multiple powder columns under the same conditions simultaneously
It surveys, for explosive wastewater professional technician, how to inhibit the change in size under temperature change is weight during formulation designs
One of design principle is wanted, as can carrying out pair to the axis radial direction change in size of different formulations explosive column under the same conditions simultaneously
Than can provide direct reference frame for formulation designs.
Therefore, how simultaneously the axis radial deformation to multiple powder columns under temperature loading environment carries out inspection when high-precision real
It surveys, is the important problem of explosive wastewater related researcher's urgent need to resolve.
Summary of the invention
In order to overcome the deficiencies of the prior art, the invention discloses explosive column axis radial direction deformation under a kind of temperature loading environment
Non-contact measurement apparatus is measured, including temperature loading unit 1, powder column radial deformation distance measuring unit 2, powder column axial deformation measure
Away from unit 3.
Temperature loading unit 1 includes explosion-proof high-low-temperature environmental test chamber 4, top test windows 5, side test windows 6, system
Cooling system 7；Top test windows 5 are located at 4 outside top of explosion-proof high-low-temperature environmental test chamber, for the saturating of laser sensor light source
It penetrates；Side test windows 6 are located at lower part among 4 outer left side of explosion-proof high-low-temperature environmental test chamber, are used for laser sensor light
The transmission in source；Refrigeration system 7 and 4 separation design of explosion-proof high-low-temperature environmental test chamber left side outside；
Powder column radial-deformation distance measuring unit 2 includes radial distance measuring sensor 8, sensor stand 9, sample disc 10, transmission
Axis 11, rotary motion system 12, turntable pedestal 13, turntable 14；Sensor stand 9 is fixed on 6 left side of side test windows,
Radial distance measuring sensor 8 is fixed on sensor stand 9, and turntable pedestal 13 is fixed on explosion-proof high-low-temperature ring with soket head cap screw
Chamber 4 bottom in border is located on turntable pedestal 13 close to inner left wall, turntable 14, and sample disc 10 is fixed on turntable 14
On, rotary motion system 12 and turntable 14 are separately connected at left and right sides of transmission shaft 11, rotary motion system 12 drives after opening
Turntable 14 rotates, and turntable 14 drives the sample disc 10 for placing measurement powder column to rotate, and radial distance measuring sensor 8 measures medicine first
One, post jamb face point measures a point after powder column rotation 180, the difference between two o'clock is the diameter of powder column as a reference value again
To deformation size；
Powder column axial deformation amount distance measuring unit 3 include axial distance measuring sensor 15, sensor stand 16, servo motor 17,
Ball-screw 18, mobile bracket 19, servo motor 20, ball-screw 21, sample disc 22, lifting shaft 23, lifting platform 24, pedestal
25, handwheel 26, sensor stand 16 are fixed below mobile 19 transverse arm of bracket, and axial distance measuring sensor 15 is fixed on sensor branch
The lower section of frame 16, servo motor 17 connects by ball-screw 18 with mobile bracket 19, servo motor 20 pass through ball-screw 21 and
Mobile bracket 19 connects, and drives mobile bracket 19 mobile in the X-direction of horizontal plane by servo motor 17, crosses servo motor 20
Drive mobile bracket 19 mobile in the Y direction of horizontal plane, so that axial distance measuring sensor 15 is in the X of horizontal plane, Y-axis side
It is displaced to generating；Pedestal 25 is fixed on 4 bottom centre of explosion-proof high-low-temperature environmental test chamber side to the right, lifting platform with soket head cap screw
24 are fixed on pedestal 25, and right side connects handwheel 26, and lifting shaft 23 is fixed on lifting platform 24, and top connects sample disc 22, quilt
Test sample is placed in sample disc 22, rises or falls sample disc 22 by shaking handwheel 26, for making in sample disc 22
The sample upper surface of different height be in the tested range of axial distance measuring sensor 15 always.
Explosive column axis radial deformation non-contact measurement apparatus under a kind of temperature loading environment, top are surveyed
Try form 5, side test windows 6 use heat-resisting high-boron-silicon glass.
Explosive column axis radial deformation non-contact measurement apparatus under a kind of temperature loading environment, refrigeration system
System 7 and 4 separation design of explosion-proof high-low-temperature environmental test chamber.
Explosive column axis radial deformation non-contact measurement apparatus, key portion under a kind of temperature loading environment
Part is powder column radial deformation distance measuring unit 2 and powder column axial deformation amount distance measuring unit 3, and test philosophy is to pass radial ranging
Sensor 8, axial distance measuring sensor 15 are mounted on the outside of explosion-proof high-low-temperature environmental test chamber 4, through form carry out to sample into
Row non-contact measurement；The working principle of distance measuring sensor are as follows: laser gets to measured piece surface, laser by laser transmitter projects
Diffusing reflection occurs, the reflected light of a portion special angle can be connect by four one group of the lens vernier focusing in right side on right side
On the light receiving element of receiving end, the distance of workpiece range sensor is different, and the position that light focuses on light receiving element is also different, the two
It corresponds to each other, current exact position can be obtained by by the measurement to focal position；The wherein reality of sample radial deformation
When detect, be by utilizing corresponding to the sample being placed on the turntable 14 180 ° of two points measurement of radial distance measuring sensor 8
Rear calculating difference is realized；The real-time detection of multiple sample axial deformation amount is by installing axial distance measuring sensor 15
Ball-screw 18,21 is driven to move in X, Y-axis to different sample upper surfaces using servo motor 17,20 on mobile bracket 19
Point measurement is to realize.
Explosive column axis radial deformation non-contact measurement apparatus, was tested under a kind of temperature loading environment
Journey the following steps are included:
1, multiple powder column axial dimension measure of the change
(1) sample to be tested is placed in sample disc 22, shaking handwheel 26 makes sample upper surface and explosion-proof high-low-temperature
Distance is not more than 50mm between 4 inside upper wall of environmental test chamber；
(2) test technology parameter, including temperature spot, each temperature spot soaking time, temperature cycle times etc. are set, remotely
Open explosion-proof high-low-temperature environmental test chamber 4；
(3) measurement parameter, including detection frequency, number, X-axis velocity of displacement, Y-axis velocity of displacement etc., remote opening are set
Powder column axial deformation amount distance measuring unit 3；
(4) start to test, computer automatically records the initial data of each point.
2, single-shot powder column radial dimension measure of the change
(1) sample to be tested is placed in sample disc 10 at center；
(2) test technology parameter, including temperature spot, each temperature spot soaking time, temperature cycle times etc. are set, remotely
Open explosion-proof high-low-temperature environmental test chamber 4；
(3) measurement parameter, including detection frequency, number, rotation speed etc. are set, and remote opening powder column radial deformation is surveyed
Away from unit 2；
(4) start to test, computer automatically records the initial data of each point.
The invention has the advantages that: measure temperature loading unit, powder column radial deformation distance measuring unit, powder column axial deformation
Away from unit organic combination at a test macro, existing hand dipping method thermomechanical analysis and dilatometer method are compared, is solved
Under the same terms the axialmode variable of multiple powder column can not measure simultaneously, powder column radial deformation can not real-time detection ask
Topic；Top test windows and side test windows use heat-resisting high-boron-silicon glass, guarantee to change in high and low temperature environment temperature shock
Lower form will not be ruptured because biggish temperature change is generated in the short period；Refrigeration system and explosion-proof high-low-temperature environmental test
Case separation design makes equipment run smoothly to reduce the vibration of environmental cabinet at work, improves the measurement of measurement sensor
Precision；In addition, compared with prior art, measuring accuracy magnitude is increased to 0.001mm from 0.01mm.
Detailed description of the invention
Fig. 1 shows explosive column axis radial deformation non-contact measurement apparatus, Fig. 1 under temperature loading environment of the invention
In: 1, explosion-proof high-low-temperature environmental test chamber；2, powder column radial deformation distance measuring unit；3, powder column axial deformation amount distance measuring unit；
4, explosion-proof high-low-temperature environmental test chamber；5, top test windows；6, side test windows；7, refrigeration system；8, radial ranging passes
Sensor；9, sensor stand；10, sample disc；11, transmission shaft；12, rotary motion system；13, turntable pedestal；14, it rotates
Platform；22, sample disc；23, lifting shaft；24, lifting platform；25, pedestal；26 handwheels (26)；
Fig. 2 indicates powder column axial deformation amount distance measuring unit (3), in Fig. 2: 15, axial distance measuring sensor；16, sensor branch
Frame；17, servo motor；18, ball-screw；19, mobile bracket；20, servo motor；21, ball-screw；
Fig. 3 is laser distance measuring principle figure.
Specific embodiment
Embodiment 1
Explosive column axis radial deformation non-contact measurement apparatus under a kind of temperature loading environment, including temperature
Loading unit 1, powder column radial deformation distance measuring unit 2, powder column axial deformation amount distance measuring unit 3.
Temperature loading unit 1 includes explosion-proof high-low-temperature environmental test chamber 4, top test windows 5, side test windows 6, system
Cooling system 7；Top test windows 5 are located at 4 outside top of explosion-proof high-low-temperature environmental test chamber, for the saturating of laser sensor light source
It penetrates；Side test windows 6 are located at lower part among 4 outer left side of explosion-proof high-low-temperature environmental test chamber, are used for laser sensor light
The transmission in source；Refrigeration system 7 and 4 separation design of explosion-proof high-low-temperature environmental test chamber left side outside；
Powder column radial-deformation distance measuring unit 2 includes radial distance measuring sensor 8, sensor stand 9, sample disc 10, transmission
Axis 11, rotary motion system 12, turntable pedestal 13, turntable 14；Sensor stand 9 is fixed on 6 left side of side test windows,
Radial distance measuring sensor 8 is fixed on sensor stand 9, and turntable pedestal 13 is fixed on explosion-proof high-low-temperature ring with soket head cap screw
Chamber 4 bottom in border is located on turntable pedestal 13 close to inner left wall, turntable 14, and sample disc 10 is fixed on turntable 14
On, rotary motion system 12 and turntable 14 are separately connected at left and right sides of transmission shaft 11, rotary motion system 12 drives after opening
Turntable 14 rotates, and turntable 14 drives the sample disc 10 for placing measurement powder column to rotate, and radial distance measuring sensor 8 measures medicine first
One, post jamb face point measures a point after powder column rotation 180, the difference between two o'clock is the diameter of powder column as a reference value again
To deformation size；
Powder column axial deformation amount distance measuring unit 3 include axial distance measuring sensor 15, sensor stand 16, servo motor 17,
Ball-screw 18, mobile bracket 19, servo motor 20, ball-screw 21, sample disc 22, lifting shaft 23, lifting platform 24, pedestal
25, handwheel 26, sensor stand 16 are fixed below mobile 19 transverse arm of bracket, and axial distance measuring sensor 15 is fixed on sensor branch
The lower section of frame 16, servo motor 17 connects by ball-screw 18 with mobile bracket 19, servo motor 20 pass through ball-screw 21 and
Mobile bracket 19 connects, and drives mobile bracket 19 mobile in the X-direction of horizontal plane by servo motor 17, crosses servo motor 20
Drive mobile bracket 19 mobile in the Y direction of horizontal plane, so that axial distance measuring sensor 15 is in the X of horizontal plane, Y-axis side
It is displaced to generating；Pedestal 25 is fixed on 4 bottom centre of explosion-proof high-low-temperature environmental test chamber side to the right, lifting platform with soket head cap screw
24 are fixed on pedestal 25, and right side connects handwheel 26, and lifting shaft 23 is fixed on lifting platform 24, and top connects sample disc 22, quilt
Test sample is placed in sample disc 22, rises or falls sample disc 22 by shaking handwheel 26, for making in sample disc 22
The sample upper surface of different height be in the tested range of axial distance measuring sensor 15 always.
Explosive column axis radial deformation non-contact measurement apparatus under a kind of temperature loading environment, top are surveyed
Try form 5, side test windows 6 use heat-resisting high-boron-silicon glass.
Explosive column axis radial deformation non-contact measurement apparatus under a kind of temperature loading environment, refrigeration system
System 7 and 4 separation design of explosion-proof high-low-temperature environmental test chamber.
Explosive column axis radial deformation non-contact measurement apparatus, key portion under a kind of temperature loading environment
Part is powder column radial deformation distance measuring unit 2 and powder column axial deformation amount distance measuring unit 3, and test philosophy is to pass radial ranging
Sensor 8, axial distance measuring sensor 15 are mounted on the outside of explosion-proof high-low-temperature environmental test chamber 4, through form carry out to sample into
Row non-contact measurement；The working principle of distance measuring sensor are as follows: laser gets to measured piece surface, laser by laser transmitter projects
Diffusing reflection occurs, the reflected light of a portion special angle can be connect by four one group of the lens vernier focusing in right side on right side
On the light receiving element of receiving end, the distance of workpiece range sensor is different, and the position that light focuses on light receiving element is also different, the two
It corresponds to each other, current exact position can be obtained by by the measurement to focal position；The wherein reality of sample radial deformation
When detect, be by utilizing corresponding to the sample being placed on the turntable 14 180 ° of two points measurement of radial distance measuring sensor 8
Rear calculating difference is realized；The real-time detection of multiple sample axial deformation amount is by installing axial distance measuring sensor 15
Ball-screw 18,21 is driven to move in X, Y-axis to different sample upper surfaces using servo motor 17,20 on mobile bracket 19
Point measurement is to realize.
Explosive column axis radial deformation non-contact measurement apparatus, was tested under a kind of temperature loading environment
Journey the following steps are included:
1, multiple powder column axial dimension measure of the change
(1) sample to be tested is placed in sample disc 22, shaking handwheel 26 makes sample upper surface and explosion-proof high-low-temperature
Distance is not more than 50mm between 4 inside upper wall of environmental test chamber；
(2) test technology parameter, including temperature spot, each temperature spot soaking time, temperature cycle times etc. are set, remotely
Open explosion-proof high-low-temperature environmental test chamber 4；
(3) measurement parameter, including detection frequency, number, X-axis velocity of displacement, Y-axis velocity of displacement etc., remote opening are set
Powder column axial deformation amount distance measuring unit 3；
(4) start to test, computer automatically records the initial data of each point.
2, single-shot powder column radial dimension measure of the change
(1) sample to be tested is placed in sample disc 10 at center；
(2) test technology parameter, including temperature spot, each temperature spot soaking time, temperature cycle times etc. are set, remotely
Open explosion-proof high-low-temperature environmental test chamber 4；
(3) measurement parameter, including detection frequency, number, rotation speed etc. are set, and remote opening powder column radial deformation is surveyed
Away from unit 2；
(4) start to test, computer automatically records the initial data of each point.
Three hair samples to be tested are placed in sample disc 22 in isosceles triangle, shaking handwheel 26 makes sample upper surface and prevent
Distance is in 30mm or so between quick-fried 4 inside upper wall of high-low-temperature environmental testing case；
Setting test maximum temperature is 70 DEG C, and minimum temperature is -55 DEG C, and test process is set as from 15 DEG C of elder generations of ambient room temperature
70 DEG C are warming up to, keeps the temperature 30min, then be cooled to -55 DEG C, heat preservation 30min is a circulation, is being restored to ring after recycling 3 times altogether
15 DEG C of border room temperature；Explosion-proof high-low-temperature environmental test chamber 4 is opened after the completion of parameter setting；
Setting detection frequency is 5min/ times, X-axis velocity of displacement 10mm/s, Y-axis velocity of displacement 10mm/s, test temperature point
For 15 DEG C, 70 DEG C of ambient room temperature (recycling for the first time), -55 DEG C (recycling for the first time), 70 DEG C (recycling for the second time), -55 DEG C (second
Secondary circulation), 70 DEG C (third time recycle), -55 DEG C of (third time recycles), ambient room temperatures (ends), unlatching powder column axial deformation amount
Distance measuring unit 3；
Start to test, computer automatically records the initial data of each point.
After axial deformation amount testing experiment, sample is taken out, the sample that 1 hair is not surveyed is placed on sample disc
In 10 at center；
Setting test maximum temperature is 70 DEG C, and minimum temperature is -55 DEG C, and test process is set as from 15 DEG C of elder generations of ambient room temperature
70 DEG C are warming up to, keeps the temperature 30min, then be cooled to -55 DEG C, heat preservation 30min is a circulation, is being restored to ring after recycling 3 times altogether
15 DEG C of border room temperature；Explosion-proof high-low-temperature environmental test chamber 4 is opened after the completion of parameter setting；
Setting detection frequency is 5min/ times, rotation speed 30rpm, and test temperature point is 15 DEG C, 70 DEG C of ambient room temperature
(recycling for the first time), -55 DEG C (first time recycles), 70 DEG C (recycling for the second time), -55 DEG C of (second of circulation), 70 DEG C of (third times
Circulation), -55 DEG C (third time recycle), ambient room temperatures (ends), unlatching powder column radial deformation distance measuring unit 2；
Start to test, computer automatically records the initial data of each point.
In the present embodiment, the axial deformation amount of multiple explosive column and the radial deformation of single-shot powder column are mainly measured,
It is RL-F explosive that axial deformation amount, which is tested explosive, and powder column original size is Φ 60mm × 60mm, and quantity 3 is sent out, radial deformation quilt
Survey explosive is RL-F explosive, and powder column original size is Φ 60mm × 60mm, and quantity 1 is sent out.RL-F explosive is by heisuojin, aluminium powder and glues
Tie agent system composition, theoretical density 1.83gcm-3。
As a comparison, the prior art 1 is manual telemetry, the prior art 2 is thermomechanical analysis, the prior art 3 is swollen
Swollen instrument method.Tested explosive is RL-F explosive.
Table 1 is the comparison of apparatus of the present invention and the prior art.
1 apparatus of the present invention of table are compared with the prior art
High-low temperature chamber used in remarks, the prior art 1 and embodiment 1 is same size size.
As can be seen that apparatus of the present invention measuring accuracy is high, the sample size range of test is wide, and can be to the diameter of single-shot sample
It is measured in real time to the axial deformation amount under deformation quantity, multiple sample identical conditions.
Claims (4)
1. explosive column axis radial deformation non-contact measurement apparatus under a kind of temperature loading environment, it is characterised in that including temperature
Spend loading unit (1), powder column radial deformation distance measuring unit (2), powder column axial deformation amount distance measuring unit (3)；
Temperature loading unit (1) includes explosion-proof high-low-temperature environmental test chamber (4), top test windows (5), side test windows
(6), refrigeration system (7)；Top test windows (5) are located at the external top of explosion-proof high-low-temperature environmental test chamber (4), are used for laser
The transmission of sensor light source；Side test windows (6) are located at lower part among explosion-proof high-low-temperature environmental test chamber (4) outer left side,
Transmission for laser sensor light source；Refrigeration system (7) and explosion-proof high-low-temperature environmental test chamber (4) separation design are located at it
Outer left side；
Powder column radial-deformation distance measuring unit (2) includes radial distance measuring sensor (8), sensor stand (9), sample disc (10),
Transmission shaft (11), rotary motion system (12), turntable pedestal (13), turntable (14)；Sensor stand (9) is fixed on side
On the left of test windows (6), radial distance measuring sensor (8) is fixed on sensor stand (9), the interior hexagonal of turntable pedestal (13)
Screw is fixed on explosion-proof high-low-temperature environmental test chamber (4) bottom close to inner left wall, and turntable (14) is located at turntable pedestal
(13) on, sample disc (10) is fixed on turntable (14), is separately connected rotary motion system at left and right sides of transmission shaft (11)
(12) and turntable (14).Rotary motion system (12) drives turntable (14) rotation after opening, turntable (14), which drives, to be placed
Measuring sample disc (10) rotation of powder column, radial distance measuring sensor (8) measures one point of powder column wall surface as a reference value first, to
A point is measured again after powder column rotation 180, and the difference between two o'clock is the radial deformation size of powder column；
Powder column axial deformation amount distance measuring unit (3) includes axial distance measuring sensor (15), sensor stand (16), servo motor
(17), ball-screw (18), mobile bracket (19), servo motor (20), ball-screw (21), sample disc (22), lifting shaft
(23), lifting platform (24) pedestal (25) handwheel (26), sensor stand (16) are fixed below mobile bracket (19) transverse arm, axial
Distance measuring sensor (15) is fixed below sensor stand (16), and servo motor (17) passes through ball-screw (18) and mobile bracket
(19) it connects, servo motor (20) is connect by ball-screw (21) with mobile bracket (19), is driven by servo motor (17)
Mobile bracket (19) are mobile in the X-direction of horizontal plane, cross the Y-axis that servo motor (20) drive mobile bracket (19) in horizontal plane
Direction is mobile, so that axial distance measuring sensor (15) generates displacement in the X of horizontal plane, Y direction；Pedestal (25) is with interior six
Angle screw is fixed on explosion-proof high-low-temperature environmental test chamber (4) bottom centre side to the right, and lifting platform (24) is fixed on pedestal (25),
Right side connects handwheel (26), and lifting shaft (23) is fixed on lifting platform (24), and top connects sample disc (22), and tested sample is put
It is placed in sample disc (22), rises or falls sample disc (22) by shaking handwheel (26), for making in sample disc (22)
The sample upper surface of different height is in always in the tested range of axial distance measuring sensor (15).
2. under temperature loading environment according to claim 1 explosive column axis radial deformation non-contact measurement apparatus its
It is characterized in that, top test windows (5), side test windows (6) use heat-resisting high-boron-silicon glass.
3. under temperature loading environment according to claim 1 explosive column axis radial deformation non-contact measurement apparatus its
It is characterized in that, refrigeration system (7) and explosion-proof high-low-temperature environmental test chamber (4) separation design.
4. under temperature loading environment according to claim 1 explosive column axis radial deformation non-contact measurement apparatus its
It is characterized in that, test philosophy is that radial distance measuring sensor 8, axial distance measuring sensor 15 are mounted on the examination of explosion-proof high-low-temperature environment
The outside of tryoff 4 carries out carrying out non-contact measurement to sample through form；The working principle of distance measuring sensor are as follows: laser by
Laser transmitter projects get to measured piece surface, and diffusing reflection occurs for laser, and the reflected light of a portion special angle can pass through
For the lens vernier focusing that four one group of right side on the light receiving element of right side receiving end, the distance of workpiece range sensor is different,
The position that light focuses on light receiving element is also different, and the two corresponds to each other, and can be obtained by and works as by the measurement to focal position
Preceding exact position；The wherein real-time detection of sample radial deformation, be by using radial distance measuring sensor 8 to be placed on rotation
Calculating difference after the corresponding 180 ° of two points measurement of sample on turntable 14 is realized；Multiple sample axial deformation amount it is real-time
Detection is to drive ball-screw using servo motor 17,20 by the way that axial distance measuring sensor 15 to be mounted on mobile bracket 19
18, it 21 is moved in X, Y-axis different sample upper end millet cake measurements is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811030826.7A CN109238871B (en) | 2018-09-05 | 2018-09-05 | Non-contact type measuring device for axial and radial deformation of explosive column under temperature loading condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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