CN111157257A - Wheel flying dust measurement test bed for simulating lunar environment - Google Patents
Wheel flying dust measurement test bed for simulating lunar environment Download PDFInfo
- Publication number
- CN111157257A CN111157257A CN202010011748.7A CN202010011748A CN111157257A CN 111157257 A CN111157257 A CN 111157257A CN 202010011748 A CN202010011748 A CN 202010011748A CN 111157257 A CN111157257 A CN 111157257A
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- 239000000428 dust Substances 0.000 title claims abstract description 48
- 238000005259 measurement Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 103
- 239000002689 soil Substances 0.000 claims abstract description 66
- 239000002245 particle Substances 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 238000004088 simulation Methods 0.000 claims abstract description 22
- 230000033001 locomotion Effects 0.000 claims abstract description 14
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- 238000005286 illumination Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000005486 microgravity Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/013—Wheels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a measurement test bed device for simulating lunar surface environment raise dust, which comprises a lunar surface environment simulation mechanism, a measurement system, wheels and a wheel movement mechanism; the lunar surface environment simulation mechanism comprises a frame, a vacuum cover, simulated lunar soil, a soil tank and a vacuum pump, wherein the soil tank is fixed in the vacuum cover, the simulated lunar soil is uniformly laid in the soil tank, the frame is fixed above the soil tank, and the vacuum pump is communicated with the interior of the vacuum cover through a pipeline; the measuring system is arranged in the vacuum cover and used for measuring the parameters of the dust particles and the parameters of the wheels; the wheel movement mechanism comprises a horizontal sliding mechanism, a lifting mechanism and a wheel transmission mechanism, the horizontal sliding mechanism is installed on the rack and can horizontally slide above the soil tank, the lifting mechanism is vertically connected below the horizontal sliding mechanism, and the transmission mechanism is installed at the bottom of the lifting mechanism and connected with wheels and used for driving the wheels to rotate on the surface of the simulated lunar soil. The invention is suitable for measuring the dust emission of the running condition of the wheels under different loads and different specifications.
Description
Technical Field
The invention belongs to the technical field of lunar dust suppression, and particularly relates to a test bed for simulating lunar environment raise dust.
Background
The lunar soil is covered with a layer of thick lunar soil, the lunar soil is composed of particles with the average particle size of 75 microns, the particle size of lunar dust generated when a manned lunar vehicle rapidly runs on the lunar soil is less than 20 microns, the lunar dust is difficult to remove under the conditions of microgravity and high vacuum, and all astronauts reaching the lunar surface find that the trouble caused by the lunar dust is far beyond imagination. These particles not only pose a threat to the health of astronauts and damage to space suits, but also moon dust attached to various surfaces of the spacecraft can cause many faults and pose a great threat to the reliability and safety of the space system.
The dust flying phenomenon of the wheels caused by the rapid running of the manned lunar vehicle is more serious than the dust flying phenomenon caused by the walking of astronauts. The vacuum environment of the lunar surface makes the lunar dust have strong adhesiveness, the lunar surface has no air, and the movement track of the lunar dust is not influenced by the air flow. The charged lunar dust can float on the surface of the moon under the action of an electric field on the surface of the moon, and extremely bad influence is caused on the safety of astronauts, the protection of space suits and the functions of lunar vehicles. Therefore, it is necessary to develop a wheel dust test device for quantitatively analyzing the dust of the wheels of the manned lunar vehicles in China.
Disclosure of Invention
The invention aims to provide a raised dust measurement test bed for a simulated lunar environment, which can realize the raised dust condition of a wheel under the simulated lunar environment. The test bed provided by the invention can be suitable for measuring the dust emission when the wheel rotates in place and walks, and is suitable for measuring the dust emission under different loads and different specifications under the running conditions of the wheel.
In order to achieve the purpose, the invention provides the following scheme:
a simulated lunar surface environment raise dust measurement test bed device comprises a lunar surface environment simulation mechanism, a measurement system, wheels and a wheel movement mechanism; the lunar surface environment simulation mechanism comprises a frame, a vacuum cover, simulated lunar soil, a soil tank and a vacuum pump, wherein the soil tank is fixed in the vacuum cover, the simulated lunar soil is uniformly laid in the soil tank, the frame is fixed above the soil tank, and the vacuum pump is communicated with the interior of the vacuum cover through a pipeline; the measuring system is arranged in the vacuum cover and is used for measuring the parameters of dust particles and the parameters of wheels; the wheel movement mechanism comprises a horizontal sliding mechanism, a lifting mechanism and a wheel transmission mechanism, the horizontal sliding mechanism is installed on the rack and can horizontally slide above the soil tank, the lifting mechanism is vertically connected below the horizontal sliding mechanism, and the transmission mechanism is installed at the bottom of the lifting mechanism and connected with wheels and used for driving the wheels to rotate on the surface of the simulated lunar soil.
Furthermore, the lunar surface environment simulation mechanism further comprises a simulation light source and a soil tank support, the simulation light source is installed on the rack and irradiates simulated lunar soil in the soil tank, and the soil tank is fixed in the vacuum cover through the soil tank support.
Furthermore, the measuring system comprises a particle track camera, a dust measuring instrument and a global camera, wherein the two particle track cameras are respectively arranged on the rack and the wheel movement mechanism, and the global camera and the dust measuring instrument are respectively arranged on the inner wall of the soil tank.
Further, the horizontal sliding mechanism comprises a sliding rail mechanism, a roller and a rail; the two rails are horizontally connected to the frame, the slide rail mechanism is connected with the two rails in a sliding mode through the idler wheels, and the slide rail mechanism is provided with slide bar positioning holes and used for being connected with the lifting mechanism.
Further, elevating system includes platform slide bar, wheel fixed platform, and platform slide bar upper end is connected with horizontal sliding mechanism, and platform slide bar lower extreme is connected with wheel fixed platform, is equipped with a plurality of mounting holes on the platform slide bar for adjust wheel fixed platform's mounting height.
Furthermore, the wheel transmission mechanism comprises a chain transmission mechanism and a motor, the motor is fixed on the lifting mechanism, and a motor shaft is connected with a wheel shaft of the wheel through the chain transmission mechanism.
The invention has the following advantages:
the lunar surface vacuum environment, lunar soil and illumination are simulated by the lunar surface environment simulation system; the motor drives the wheel fixing platform to move forward, and the sliding rail mechanism ensures that the mechanism can move forward smoothly on the rail; the measuring system measures the particle height, the particle motion track, the particle concentration, the wheel load, the wheel torque and the wheel speed, and wheel parameters for effectively preventing dust emission are obtained. The test bed provided by the invention can be suitable for measuring the dust emission when the wheel rotates in place and walks, and is suitable for measuring the dust emission under different loads and different specifications under the running conditions of the wheel.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of an overall structure of a test bed for simulating lunar environment raise dust according to the present invention;
FIG. 2 is a schematic view of an axial structure according to the present invention;
FIG. 3 is a schematic view of an axial structure according to the present invention;
FIG. 4 is a schematic view of an experimental wheel section assembly;
in the figure: 1-a frame; 2-a particle trajectory camera; 3-vacuum cover; 4-dust measuring instrument; 5-simulating a light source; 6-a global camera; 7-simulating lunar soil; 8-a soil tank; 9-a soil trough support; 10-a vacuum pump; 11-slide bar positioning holes; 12-a slide rail mechanism; 13-a roller; 14-a track; 15-a platform slide bar; 16-sprocket box; 17-a motor; 18-wheel securing platform; 19-vehicle wheels.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
A simulated lunar surface environment raise dust measurement test bed device comprises a lunar surface environment simulation mechanism, a measurement system, wheels 19 and a wheel movement mechanism; the lunar surface environment simulation mechanism comprises a frame 1, a vacuum cover 3, simulated lunar soil 7, a soil tank 8 and a vacuum pump 10, wherein the soil tank 8 is fixed in the vacuum cover 3, the simulated lunar soil 7 is uniformly laid in the soil tank 8, the frame 1 is fixed above the soil tank 8, and the vacuum pump 10 is communicated with the inside of the vacuum cover 3 through a pipeline; the measuring system is arranged in the vacuum cover 3 and is used for measuring the parameters of dust particles and the parameters of wheels; the wheel movement mechanism comprises a horizontal sliding mechanism, a lifting mechanism and a wheel transmission mechanism, the horizontal sliding mechanism is installed on the rack and can horizontally slide above the soil tank, the lifting mechanism is vertically connected below the horizontal sliding mechanism, and the transmission mechanism is installed at the bottom of the lifting mechanism and connected with wheels and used for driving the wheels to rotate on the surface of the simulated lunar soil.
The lunar surface environment simulation mechanism comprises a frame 1, a vacuum cover 3, a simulation light source 5, simulation lunar soil 7, a soil tank 8, a soil tank support 9 and a vacuum pump 10, wherein the vacuum cover 3 covers the whole test bed, the soil tank 8 is fixed in the vacuum cover 3 through the soil tank support 9, the simulation lunar soil 7 is uniformly paved in the soil tank 8, the frame 1 is fixed above the soil tank 8, the simulation light source 5 is installed on the frame 1 and irradiates the simulation lunar soil 7 in the soil tank 8, and the vacuum pump 10 is installed beside the vacuum cover 3 and is communicated with the inside of the vacuum cover 3 through a pipeline. The lunar surface environment simulation system simulates the vacuum environment, lunar soil and illumination of the lunar surface.
The measuring system comprises particle track cameras 2, a dust measuring instrument 4 and a global camera 6, wherein the two particle track cameras 2 are respectively arranged on the rack 1 and the wheel fixing platform 18, and the global camera 6 and the dust measuring instrument 4 are respectively arranged on the inner wall of the soil tank 8. The particle track camera 2 and the global camera 6 are both high speed cameras. The measurement system measures particle height, particle motion trajectory, particle concentration, wheel load, wheel torque, and wheel speed.
The wheel movement mechanism comprises a horizontal sliding mechanism, a lifting mechanism and a wheel transmission mechanism, the horizontal sliding mechanism is installed on the rack 1 and can horizontally slide above the soil tank 8, the lifting mechanism is vertically connected below the horizontal sliding mechanism, and the transmission mechanism is installed at the bottom of the lifting mechanism and used for driving wheels to rotate on the surface of the simulated lunar soil.
The horizontal sliding mechanism comprises a sliding rail mechanism 12, rollers 13 and rails 14, the two rails 14 are horizontally connected to the rack 1, the rollers 13 are mounted on the sliding rail mechanism 12, and the rollers 13 are connected with roller grooves formed in the two rails 14, so that the sliding rail mechanism 12 can freely slide on the rails 14. The rollers 13 are respectively arranged in a row on two sides of the horizontal plane of the sliding rail mechanism 12, so that the sliding rail mechanism 12 can move smoothly. The slide rail mechanism 12 is provided with three slide bar positioning holes 11 for connecting with a lifting mechanism.
The lifting mechanism comprises a platform slide bar 15 and a wheel fixing platform 18, the upper end of the platform slide bar 15 is connected with a slide bar positioning hole of the slide rail mechanism 12 and is perpendicular to the slide rail mechanism 12, the lower end of the platform slide bar 15 is connected with the wheel fixing platform 18, and a plurality of mounting holes are formed in the platform slide bar 15 and used for adjusting the mounting height of the wheel fixing platform 18.
The wheel transmission mechanism comprises a chain transmission mechanism and a motor 17, the motor 17 is fixed on a wheel fixing platform 18, a motor shaft is connected with the wheel shaft through the chain transmission mechanism, the chain transmission mechanism comprises a chain wheel box 16, a transmission chain and two chain wheels, the chain wheel box is vertical to and penetrates through the wheel fixing platform, the two chain wheels are respectively installed on the motor shaft and the wheel shaft, and the two chain wheels are connected through the transmission chain.
The working principle of the invention is described as follows:
when the simulated moon environment dust emission measurement test bed starts to work, wheels of a to-be-used specification are installed on the wheel fixing platform 18, the wheels 19 and the motor 17 are connected with a chain wheel through a chain, and the height of the wheel fixing platform 18 above and below the platform slide rod 15 is adjusted. After the adjustment is completed, the operation is started, the vacuum cover 3 is sealed, and the vacuum pump 10 and the simulated light source 5 are turned on. After the air pressure in the vacuum cover 3 meets the experimental requirements, the particle track camera 2 and the global camera 6 are opened, and the dust measuring instrument 4 enters a working state.
After the required wheel rotating speed parameters are adjusted, a switch of the motor 17 is turned on, the motor 17 drives the wheel fixing platform 18 to move forward, and the sliding rail mechanism 12 ensures that the mechanism can move forward smoothly on the rail 14. The particle track camera 2, the global camera 6 and the dust measuring instrument 4 start to record data. When the advancing distance meets the requirement, the stepping motor is stopped through the displacement sensor, and experimental data measured by the high-speed cameras 2 and 6 and the dust measuring instrument 4 are read.
Claims (6)
1. A simulated lunar surface environment raise dust measurement test bed device is characterized by comprising a lunar surface environment simulation mechanism, a measurement system, wheels and a wheel movement mechanism; the lunar surface environment simulation mechanism comprises a frame, a vacuum cover, simulated lunar soil, a soil tank and a vacuum pump, wherein the soil tank is fixed in the vacuum cover, the simulated lunar soil is uniformly laid in the soil tank, the frame is fixed above the soil tank, and the vacuum pump is communicated with the interior of the vacuum cover through a pipeline; the measuring system is arranged in the vacuum cover and is used for measuring the parameters of dust particles and the parameters of wheels; the wheel movement mechanism comprises a horizontal sliding mechanism, a lifting mechanism and a wheel transmission mechanism, the horizontal sliding mechanism is installed on the rack and can horizontally slide above the soil tank, the lifting mechanism is vertically connected below the horizontal sliding mechanism, and the transmission mechanism is installed at the bottom of the lifting mechanism and connected with wheels and used for driving the wheels to rotate on the surface of the simulated lunar soil.
2. The simulated lunar surface environment raise dust measurement test bed apparatus according to claim 1, wherein the lunar surface environment simulation mechanism further comprises a simulation light source and a soil trough bracket, the simulation light source is mounted on the frame and irradiates the simulated lunar soil in the soil trough, and the soil trough is fixed in the vacuum hood through the soil trough bracket.
3. The test bed device for simulating the flying dust in the lunar surface environment as claimed in claim 1, wherein the measuring system comprises a particle track camera, a dust measuring instrument and a global camera, the two particle track cameras are respectively installed on the frame and the wheel movement mechanism, and the global camera and the dust measuring instrument are respectively installed on the inner wall of the soil tank.
4. The lunar surface environment-simulated flying dust measuring test bed device as claimed in claim 1, wherein the horizontal sliding mechanism comprises a slide rail mechanism, a roller, a rail; the two rails are horizontally connected to the frame, the slide rail mechanism is connected with the two rails in a sliding mode through the idler wheels, and the slide rail mechanism is provided with slide bar positioning holes and used for being connected with the lifting mechanism.
5. The lunar surface environment-simulating flying dust measuring test bed device as claimed in claim 1, wherein the lifting mechanism comprises a platform slide bar and a wheel-fixing platform, the upper end of the platform slide bar is connected with the horizontal sliding mechanism, the lower end of the platform slide bar is connected with the wheel-fixing platform, and the platform slide bar is provided with a plurality of mounting holes for adjusting the mounting height of the wheel-fixing platform.
6. The lunar surface environment-simulated flying dust measuring test bed device as claimed in claim 1, wherein the wheel transmission mechanism comprises a chain transmission mechanism and a motor, the motor is fixed on the lifting mechanism, and a motor shaft is connected with a wheel shaft of the wheel through the chain transmission mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010011748.7A CN111157257A (en) | 2020-01-07 | 2020-01-07 | Wheel flying dust measurement test bed for simulating lunar environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010011748.7A CN111157257A (en) | 2020-01-07 | 2020-01-07 | Wheel flying dust measurement test bed for simulating lunar environment |
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| Publication Number | Publication Date |
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| CN111157257A true CN111157257A (en) | 2020-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010011748.7A Pending CN111157257A (en) | 2020-01-07 | 2020-01-07 | Wheel flying dust measurement test bed for simulating lunar environment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112345274A (en) * | 2020-10-30 | 2021-02-09 | 广东科学技术职业学院 | New energy automobile tire performance detecting system |
| CN113607728A (en) * | 2021-07-06 | 2021-11-05 | 哈尔滨工业大学 | Optical system in-situ measuring mechanism integrating multi-degree-of-freedom linear motion |
| CN114323830A (en) * | 2021-11-18 | 2022-04-12 | 北京卫星制造厂有限公司 | Soil preparation device and method |
| CN115372217A (en) * | 2022-08-23 | 2022-11-22 | 吉林大学 | Multi-working-condition and multi-dimensional test bench for dust raising indexes of lunar exploration vehicle wheels |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101000282A (en) * | 2006-12-15 | 2007-07-18 | 哈尔滨工业大学 | Multifunction test device for wheel motion performance of planetary detection robot |
| CN101975666A (en) * | 2010-09-07 | 2011-02-16 | 江苏大学 | Dynamic-performance testing table of tyre |
| CN103487264A (en) * | 2013-10-14 | 2014-01-01 | 中国农业大学 | Testing device for single-wheel traction performance |
| CN103673992A (en) * | 2013-11-07 | 2014-03-26 | 北京卫星环境工程研究所 | Testing method for simulating lunar-dust dust rising |
| CN106959214A (en) * | 2017-04-28 | 2017-07-18 | 山东交通学院 | A kind of vehicle tyre dust behavior experimental provision |
| KR20180135599A (en) * | 2017-06-13 | 2018-12-21 | 금호타이어 주식회사 | Indoor Test Machine for Performance Evaluation of Off-road Tire |
-
2020
- 2020-01-07 CN CN202010011748.7A patent/CN111157257A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101000282A (en) * | 2006-12-15 | 2007-07-18 | 哈尔滨工业大学 | Multifunction test device for wheel motion performance of planetary detection robot |
| CN101975666A (en) * | 2010-09-07 | 2011-02-16 | 江苏大学 | Dynamic-performance testing table of tyre |
| CN103487264A (en) * | 2013-10-14 | 2014-01-01 | 中国农业大学 | Testing device for single-wheel traction performance |
| CN103673992A (en) * | 2013-11-07 | 2014-03-26 | 北京卫星环境工程研究所 | Testing method for simulating lunar-dust dust rising |
| CN106959214A (en) * | 2017-04-28 | 2017-07-18 | 山东交通学院 | A kind of vehicle tyre dust behavior experimental provision |
| KR20180135599A (en) * | 2017-06-13 | 2018-12-21 | 금호타이어 주식회사 | Indoor Test Machine for Performance Evaluation of Off-road Tire |
Non-Patent Citations (1)
| Title |
|---|
| 王海龙: "月球车轮扬尘仿真分析与实验研究", 《万方数据知识服务平台》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112345274A (en) * | 2020-10-30 | 2021-02-09 | 广东科学技术职业学院 | New energy automobile tire performance detecting system |
| CN112345274B (en) * | 2020-10-30 | 2022-08-12 | 广东科学技术职业学院 | New energy automobile tire performance detecting system |
| CN113607728A (en) * | 2021-07-06 | 2021-11-05 | 哈尔滨工业大学 | Optical system in-situ measuring mechanism integrating multi-degree-of-freedom linear motion |
| CN113607728B (en) * | 2021-07-06 | 2023-08-11 | 哈尔滨工业大学 | Optical system in-situ measurement mechanism integrating linear motion with multiple degrees of freedom |
| CN114323830A (en) * | 2021-11-18 | 2022-04-12 | 北京卫星制造厂有限公司 | Soil preparation device and method |
| CN115372217A (en) * | 2022-08-23 | 2022-11-22 | 吉林大学 | Multi-working-condition and multi-dimensional test bench for dust raising indexes of lunar exploration vehicle wheels |
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Application publication date: 20200515 |
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