CN106571081A - Six-dimensional motion spatial simulation thermal field system teaching test platform - Google Patents
Six-dimensional motion spatial simulation thermal field system teaching test platform Download PDFInfo
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- CN106571081A CN106571081A CN201610955238.9A CN201610955238A CN106571081A CN 106571081 A CN106571081 A CN 106571081A CN 201610955238 A CN201610955238 A CN 201610955238A CN 106571081 A CN106571081 A CN 106571081A
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- insulation board
- thermal insulation
- motion space
- sextuple
- test platform
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
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- Theoretical Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention discloses a six-dimensional motion spatial simulation thermal field system teaching test platform comprising a six-dimensional motion spatial thermal field and a temperature adjustment system; the six-dimensional motion spatial thermal field comprises a soft shield, a fixed sleeve, an upper thermal insulation board and a lower thermal insulation board; the fixed sleeve is sleeved on the upper thermal insulation board; the soft shield is detachably connected with the lower thermal insulation board; the upper and lower thermal insulation boards respectively refer to an upper glass steel plate and a lower glass steel plate filled with a heat-insulating material layer; the temperature adjustment system comprises a liquid nitrogen supply unit, a vacuum heat insulation pipeline, a first heating unit, a mixer, a second heating unit, a centrifugal type blower fan, a decompression valve and an exhaust valve. The six-dimensional motion spatial simulation thermal field system teaching test platform is simple in structure, easy to control, good in simulation effect, and stable in work.
Description
Technical field
The present invention relates to docking mechanism modelling technique field, more particularly to a kind of sextuple motion space simulation temperature field system
System teaching experiment platform.
Background technology
In the test of docking mechanism analog synthesis, need to set up sextuple motion space simulation temperature field, for simulating docking machine
Structure ambient temperature operationally, to test and verifies performance of the docking mechanism in the high and low temperature environment of space.Docking mechanism work
When making, thermal field leg needs the motion that can realize six degree of freedom, and temperature adjusting range is big, and with good thermal insulation.It is existing
Simulation temperature field complex structure, wayward, simulation effect is poor.
The content of the invention
It is an object of the invention to overcome the shortcoming of prior art, there is provided a kind of sextuple motion space simulation temperature field system religion
Test platform, simple structure, it is easy to control, simulation works well, working stability.
To solve above-mentioned technical problem, following technical measures are present invention employs：Including sextuple motion space thermal field and tune
Warm system；The sextuple motion space thermal field include soft cover, fixed cover, upper thermal insulation board and lower thermal insulation board, the lower thermal insulation board with
Sextuple drive mechanism, docking mechanism standard component are respectively fixedly connected with；The fixed cover is on the upper thermal insulation board；On described every
Hot plate is respectively fixedly connected with sextuple sensor, docking structure testpieces, the soft cover；The soft cover can with the lower thermal insulation board
Removably connect；The structure of the upper thermal insulation board and lower thermal insulation board is the knot of upper and lower glass epoxy central filler insulation material layer
Structure；The thermoregulating system includes that liquid nitrogen feed unit, vacuum heat-insulated pipe, the first heating unit, blender, the second heating are single
Unit, centrifugal fan, relief valve and air bleeding valve, first heating unit and vacuum heat-insulated pipe are in parallel, the parallel pipeline
One end is connected with the liquid nitrogen feed unit, and the other end is connected with the blender；Liquid nitrogen spraying dress is provided with the blender
Put；Second heating unit is arranged between the blender and the sextuple motion space thermal field；The centrifugal fan
The sextuple motion space thermal field and the blender are connected, for nitrogen circulation；The relief valve and air bleeding valve respectively with institute
State sextuple motion space thermal field connection.
The present invention can also be further perfect by following technical measures：
As further improvement, Flow-rate adjustment is also in series with first heating unit and the vacuum heat-insulated pipe respectively
Valve, for adjusting the liquid nitrogen flow of supply.
Used as further improvement, first heating unit includes air heater and the first electric heater, the air
Heater is vaporized for heating liquid nitrogen, and first electric heater is used to heat in the nitrogen after gasification；Second heating
Unit includes the second electric heater and the 3rd electric heater.
Used as further improvement, the upper thermal insulation board is provided with 3 air vents, and correspondence is fixedly connected with the air vent
Air bleeding valve.
Used as further improvement, the valve body structure of the air bleeding valve is fiberglass central filler insulation material layer, and it passes through
Screw thread is fixedly connected with the upper thermal insulation board, a diameter of 350mm.
As further improvement, the thermal insulation of fiberglass central filler on the upper thermal insulation board, lower thermal insulation board and exhaust valve
Material is polyurethane hard bubble foam plastics.
As further improvement, a diameter of 2000mm of the upper thermal insulation board, a diameter of 1000mm of the lower thermal insulation board；It is described
Glass epoxy thickness is 5mm in upper thermal insulation board and lower thermal insulation board, and insulation material layer thickness is 70mm.
As further improvement, the soft cover structure for it is inside and outside for high-low temperature resistant thin film, it is middle be thermal insulating layer；It is described soft
Cover outer layer is polytetrafluoroethylene film, and its thickness is 0.2mm；Thermal insulating layer is super glass wool, and its thickness is 28mm.
Used as further improvement, the outer surface of the lower thermal insulation board is provided with two grooves, by rope along the groove
The soft cover is fixed on the lower thermal insulation board, the rope seam is connected with arc rubber and bolt, during locking nut,
Arc rubber can be driven to seal on soft cover.
Used as further improvement, the soft cover upper end is fixedly connected with the upper thermal insulation board by bolt, is connected outside both
Connect and fixed using elastic ring at position.
Compared with prior art, the present invention has advantages below：Freezed using liquid nitrogen spray formula, the utilization rate of liquid nitrogen compared with
Height, energy saving, when thermal field is set up, liquid nitrogen consumption is less, and achievable temperature is adjusted on a large scale, and the letter of thermoregulating system equipment
It is single；The structure of upper thermal insulation board and lower thermal insulation board is the structure of upper and lower glass epoxy central filler insulation material layer, soft cover structure
For it is inside and outside for high-low temperature resistant thin film, it is middle be thermal insulating layer, effect of heat insulation is good, simulated environment temperature stabilization；Air bleeding valve is set
And relief valve, it is ensured that the pressure in thermal field, it is ensured that process of the test it is safe and reliable.
Description of the drawings
Fig. 1 is total system schematic diagram in the present invention.
Fig. 2 is the structural representation of sextuple motion space thermal field in the present invention.
Fig. 3 is the structural representation of the lower thermal insulation board shown in Fig. 2.
Fig. 4 is the structural representation of the upper thermal insulation board shown in Fig. 2.
Fig. 5 is the connection diagram of air bleeding valve and upper thermal insulation board.
Fig. 6 is view when soft cover is sling.
Fig. 7 is the connection diagram of soft cover and lower thermal insulation board.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in further detail with specific embodiment.
As shown in Figure 1 to Figure 2, sextuple motion space simulation temperature field systematic teaching test platform of the invention, including 6 DOF
Motion space thermal field 100 and thermoregulating system 200.Sextuple motion space thermal field 100 includes soft cover 110, fixed cover 120, upper heat-insulated
Plate 130 and lower thermal insulation board 140.The profile of sextuple motion space thermal field 100 be circular platform type, upper circular diameter 2000mm, lower circular diameter
1000mm, high setting is 1000mm.The structure of lower thermal insulation board 140 is that insulation material layer is filled with upper and lower layer glass steel 141
142, adiabator can be polyurethane hard bubble foam plastics.A diameter of 1000mm of the lower fiberglass of thermal insulation board 140, levels fiberglass
The thickness of plate 141 is 5mm, and the thickness of insulation material layer 142 is 70mm.The upper surface of lower thermal insulation board 140 by screw 144 with it is right
Connection mechanism standard component 320 is fixedly connected, in the reserved steel bushing of link position.The lower surface of lower thermal insulation board 140 passes through hex screw 143
It is fixedly connected with sextuple drive mechanism 310.In order to ensure the intensity of lower thermal insulation board 140, fiberglass reinforcement can be therebetween set up
Ring 145, screw 144 and all lock of hex screw 143 are on glass enforced steel loop 145.
The material structure of upper thermal insulation board 130 is identical with lower thermal insulation board 140, is filling polyurethane in levels fiberglass hard
Foam insulation layer.A diameter of 2000mm of the fiberglass of upper thermal insulation board 130, the thickness of levels glass epoxy is 5mm, adiabatic
The thickness of material layer is 70mm.Fixed cover 120 is provided with upper thermal insulation board 130.In order to reduce thermal field to sextuple sensor as far as possible
340 temperature affects, and sextuple sensor 340 is placed on outside sextuple motion space thermal field 100.Docking structure testpieces 330
In sextuple motion space thermal field 100, sextuple sensor 340 is passed to active force by upper thermal insulation board 130.It is upper heat-insulated
Plate 130 is fixedly connected by screw 131 with docking structure testpieces 330, in the reserved steel bushing of link position.Upper thermal insulation board 130 leads to
Cross hex screw 132 to be fixedly connected with sextuple sensor 340.It is safe and reliable for guarantee test process, on upper thermal insulation board 130
3 air vents 137 are provided with, correspondence is fixedly connected with air bleeding valve 250, the valve body knot of air bleeding valve 250 by screw on air vent 137
Structure be fiberglass central filler insulation material layer, a diameter of 350mm of air bleeding valve 250.In sextuple motion space simulation temperature field 100
Pressure transducer is provided with, can output pressure signal in real time.Pressure transducer is using Japanese Yokogawa Electric Corporation product, type
Number EJA430A.When detecting pressure and being excessive, relief valve opens pressure release.
110 structures of soft cover for it is inside and outside for high-low temperature resistant thin film, it is middle be thermal insulating layer.The cladding material of soft cover 110 is poly-
Tetrafluoroethene thin film, its thickness is 0.2mm；Thermal insulating layer is super glass wool, and its thickness is 28mm；Internal layer for adapt to adapt to-
The thin-film material of 120 DEG C to+90 DEG C work, its thickness is 0.5mm.Test proves that, soft cover 110 is in -100 DEG C of temperature range
It is soft, foldable in+75 DEG C, meet the job requirement of sextuple motion space simulation temperature field.Due to soft cover 110 and upper thermal insulation board
Infrequently dismantle between 130, be tightly connected the upper end of soft cover 110 with upper thermal insulation board 130 using two groups of screws 133, in connection
Elastic ring 134 is set up at position, further to improve sealing.Upper thermal insulation board 130 is provided with lifting rope 135, is carrying out room temperature pair
When connecing simulation test, lifting rope 135 slings on soft cover 110, while ask rope 136 to hold up the soft entirety of cover 110, the quantity of support rope 136
About 12.Soft cover 110 does not require nothing more than good airproof performance with the installation of lower thermal insulation board 140, and to be easy to be quickly installed, tear open
Unload.In the present embodiment, two grooves 146 are set on the outer surface of lower thermal insulation board 140, will be soft along groove 146 by rope
Cover 110 is fixed on lower thermal insulation board 140.Rope seam is connected with arc rubber 112 and bolt 111, during locking nut, can band
Dynamic arc rubber 112 further seals soft cover 110.
Thermoregulating system 200 includes liquid nitrogen feed unit 210, vacuum heat-insulated pipe 220, the first heating unit, blender
230th, the second heating unit, centrifugal fan 240, relief valve and air bleeding valve 250.Liquefied ammonia feed unit 210 is liquid nitrogen container, respectively
Liquid nitrogen is provided to the heating unit of vacuum heat-insulated pipe 220 and first, vacuum heat-insulated pipe 220 is in parallel with the first heating unit.The
Also it is in series with flow control valve on one heating unit and vacuum heat-insulated pipe 220 respectively, supplies for adjusting liquefied ammonia feed unit 210
The liquid nitrogen flow given.First heating unit includes the electric heater 262 of air heater 261 and first, and air heater 261 is by liquid
Ammonia is simultaneously heated to uniform temperature, and the first electric heater 262 is further heated to nitrogen temperature required.Blender 230 is used
In mixing liquid nitrogen and circulating nitrogen gas, liquid nitrogen spraying device is provided with it.Centrifugal fan 240 is used for nitrogen circulation.Second adds
Hot cell includes the second electric heater 263 and the 3rd electric heater 264.
The operation of thermoregulating system 200 mainly has nitrogen displacement process, thermal field temperature-fall period, -100 DEG C of stable operations, thermal fields
Temperature-rise period and+75 DEG C of stable operation compositions.In order to promptly and accurately obtain thermal field temperature profile data, be on line real time control
Foundation is provided, temperature sensor is placed in thermal field appropriate location, to realize multimetering.Temperature sensor is using Japanese Yokogawa electricity
Machine Co., Ltd. product, model YTA310.
During nitrogen displacement：When carrying out low-temperature test, to prevent air in condensation of the steam on docking mechanism, need
The air in thermal field region is replaced before cooling.Air bleeding valve 250 is first turned on, traverser is moved to into top.Open from
Core type blower fan 240, opens the flow control valve on the first heating unit pipeline so that liquid nitrogen mass flow is 5kg/min, is opened
The electric heater 262 of air heater 261 and first, by nitrogen temperature 15 DEG C or so are heated to.After continuous displacement 30 minutes, close
Air bleeding valve 250, traverser returns to bottom.During nitrogen displacement, the second electric heater 263, the thirdly and of heater 264
Flow control valve on vacuum heat-insulated pipe 220 is to close.
In thermal field temperature-fall period：Flow control valve, the air heater 261 and first closed on the first heating unit pipeline
Electric heater 262, while opening the flow control valve on vacuum heat-insulated pipe 220 so that the liquefied ammonia in vacuum heat-insulated pipe 220
Initially flow is 15 kg/min.Adjust liquefied ammonia flow so that thermal field inlet temperature is moderate to be maintained at -102 degrees Celsius, thermal field
Start cooling.When docking mechanism reaches -100 DEG C, into steady operational status.In the process, the second electric heater 263,
Flow control valve, the electric heater 262 of air heater 261 and first on 3rd electric heater 264, the first heating unit pipeline
It is to close.
During -100 DEG C of stable operations：The flow of centrifugal fan 240 is 2400m3/h, and it is 1.0kg/ to supplement amount of liquid nitrogen
min.When temperature is raised and lowered at docking mechanism, the flow control valve on vacuum heat-insulated pipe 220 is adjusted, increased or decreased
Liquid nitrogen flow, makes the temperature on docking mechanism remain at -100 DEG C or so.Move up in docking mechanism, cause thermal field to hold
Before the rapid reduction of product, open air bleeding valve 250 is opened, after volume is basicly stable, turn off air bleeding valve 250.It is living after the completion of test
Moving platform returns to home position.
In thermal field temperature-rise period：When carrying out hot test, the flow control valve closed in vacuum heat-insulated pipe 220 is opened
Centrifugal fan 240, the second electric heater 263 and the 3rd electric heater 264, when docking mechanism reaches+75 DEG C of set point of temperature,
The 3rd electric heater 264 is closed, thermal field enters steady operational status.In thermal field temperature-rise period, only centrifugal fan 240,
Second electric heater 263 and the 3rd electric heater 264 are to open.The maximum temperature of thermal field porch is up to 82 DEG C.
During+75 DEG C of stable operations：The flow of centrifugal fan 240 is 2400m3/h.The temperature liter at docking mechanism
During high or reduction, by adjusting decreasing or increasing for the heating amount of the second electric heater 263, the temperature on docking mechanism is set to protect all the time
Hold at+75 DEG C or so.Move up in docking mechanism, before causing thermal field volume to reduce rapidly, open open air bleeding valve 250,
After volume is basicly stable, open air bleeding valve 250 is turned off.After the completion of test, traverser returns to home position.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvements done etc. should be included within the scope of protection of the invention.
Claims (10)
1. a kind of sextuple motion space simulation temperature field systematic teaching test platform, it is characterised in that：Including sextuple motion space temperature
Field and thermoregulating system；The sextuple motion space thermal field include soft cover, fixed cover, upper thermal insulation board and lower thermal insulation board, it is described under every
Hot plate is respectively fixedly connected with sextuple drive mechanism, docking mechanism standard component；The fixed cover is on the upper thermal insulation board；Institute
State thermal insulation board to be respectively fixedly connected with sextuple sensor, docking structure testpieces, the soft cover；It is described it is soft cover with it is described under every
Hot plate is removably connected；The structure of the upper thermal insulation board and lower thermal insulation board is upper and lower glass epoxy central filler adiabator
The structure of layer；The thermoregulating system includes that liquid nitrogen feed unit, vacuum heat-insulated pipe, the first heating unit, blender, second add
Hot cell, centrifugal fan, relief valve and air bleeding valve, first heating unit and vacuum heat-insulated pipe are in parallel, the parallel transistor
The one end on road is connected with the liquid nitrogen feed unit, and the other end is connected with the blender；Liquid nitrogen spray is provided with the blender
Shower device；Second heating unit is arranged between the blender and the sextuple motion space thermal field；It is described centrifugal
Blower fan connects the sextuple motion space thermal field and the blender, for nitrogen circulation；The relief valve and air bleeding valve are distinguished
It is connected with the sextuple motion space thermal field.
2. sextuple motion space simulation temperature field systematic teaching test platform according to claim 1, it is characterised in that：It is described
Flow control valve is also in series with first heating unit and the vacuum heat-insulated pipe respectively, for adjusting the liquid nitrogen stream of supply
Amount.
3. sextuple motion space simulation temperature field systematic teaching test platform according to claim 2, it is characterised in that：It is described
First heating unit includes air heater and the first electric heater, and the air heater is vaporized for heating liquid nitrogen,
First electric heater is used to heat in the nitrogen after gasification；Second heating unit is electric including the second electric heater and the 3rd
Heater.
4. sextuple motion space simulation temperature field systematic teaching test platform according to claim 3, it is characterised in that：It is described
Upper thermal insulation board is provided with 3 air vents, and correspondence is fixedly connected with air bleeding valve on the air vent.
5. sextuple motion space simulation temperature field systematic teaching test platform according to claim 4, it is characterised in that：It is described
The valve body structure of air bleeding valve is fiberglass central filler insulation material layer, and it passes through screw thread and is fixedly connected with the upper thermal insulation board,
A diameter of 350mm.
6. sextuple motion space simulation temperature field systematic teaching test platform according to claim 5, it is characterised in that：It is described
The adiabator of fiberglass central filler is polyurethane hard bubble foam plastics on upper thermal insulation board, lower thermal insulation board and exhaust valve.
7. sextuple motion space simulation temperature field systematic teaching test platform according to claim 1, it is characterised in that：It is described
The a diameter of 2000mm of upper thermal insulation board, a diameter of 1000mm of the lower thermal insulation board；Fiberglass in the upper thermal insulation board and lower thermal insulation board
Plate thickness is 5mm, and insulation material layer thickness is 70mm.
8. sextuple motion space simulation temperature field systematic teaching test platform according to claim 1, it is characterised in that：It is described
Soft cover structure for it is inside and outside for high-low temperature resistant thin film, it is middle be thermal insulating layer；The soft cover outer layer is polytetrafluoroethylene film, and it is thick
Spend for 0.2mm；Thermal insulating layer is super glass wool, and its thickness is 28mm.
9. sextuple motion space simulation temperature field systematic teaching test platform according to claim 8, it is characterised in that：It is described
The outer surface of lower thermal insulation board is provided with two grooves, and the soft cover is fixed on into the lower thermal insulation board along the groove by rope
On, the rope seam is connected with arc rubber and bolt, during locking nut, arc rubber can be driven to seal on soft cover.
10. sextuple motion space simulation temperature field systematic teaching test platform according to claim 2, it is characterised in that：Institute
State soft cover upper end to be fixedly connected with the upper thermal insulation board by bolt, fixed using elastic ring at both external connection positions.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610955238.9A CN106571081A (en) | 2016-11-03 | 2016-11-03 | Six-dimensional motion spatial simulation thermal field system teaching test platform |
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| CN201610955238.9A CN106571081A (en) | 2016-11-03 | 2016-11-03 | Six-dimensional motion spatial simulation thermal field system teaching test platform |
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Cited By (2)
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| CN107942274A (en) * | 2017-11-14 | 2018-04-20 | 北京卫星环境工程研究所 | The thermocycling system of non-magnetic environment |
| CN108479865A (en) * | 2018-02-13 | 2018-09-04 | 中国科学院西安光学精密机械研究所 | Test device capable of simulating plateau climate environment |
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Application publication date: 20170419 |
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