CN110126875A - Barrier equipment and its coal mine subincline assistant conveyance prevent-moving car system - Google Patents
Barrier equipment and its coal mine subincline assistant conveyance prevent-moving car system Download PDFInfo
- Publication number
- CN110126875A CN110126875A CN201910533862.3A CN201910533862A CN110126875A CN 110126875 A CN110126875 A CN 110126875A CN 201910533862 A CN201910533862 A CN 201910533862A CN 110126875 A CN110126875 A CN 110126875A
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- Prior art keywords
- barrier
- subincline
- frame
- weight member
- coal mine
- Prior art date
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- 230000004888 barrier function Effects 0.000 title claims abstract description 70
- 239000003245 coal Substances 0.000 title claims abstract description 41
- 230000005484 gravity Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 1
- 238000005096 rolling process Methods 0.000 claims 1
- 230000035939 shock Effects 0.000 abstract description 4
- 230000004044 response Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000005693 optoelectronics Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000005520 electrodynamics Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K7/00—Railway stops fixed to permanent way; Track brakes or retarding apparatus fixed to permanent way; Sand tracks or the like
- B61K7/16—Positive railway stops
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Loading Or Unloading Of Vehicles (AREA)
Abstract
The present invention discloses barrier equipment and its coal mine subincline assistant conveyance prevent-moving car system, barrier equipment includes electric machine controller, driving motor, total roller, barrier, frame, bracing wire and weight member, frame is laterally set to coal mine subincline inner wall, electric machine controller and driving motor are fixed on frame upper end and electric machine controller is connect for controlling driving motor work, the output axis connection composition reeling-up reeling-out device of total roller and driving motor with driving motor；Bracing wire is fixed and is wrapped on total roller and two free ends and connect respectively with the weight member for the left and right sides for being set to frame, weight member slides up and down under the drive of bracing wire along frame, correspondingly, frame is equipped with sliding limiting slot, and barrier is laterally set in coal mine subincline and the left and right sides of barrier is connect with weight member.Barrier equipment works as a buffer the shock of mine car, avoids being damaged for barrier equipment itself and mine car, guarantees the security of the lives and property.System energy quick response and reaction agility.
Description
Technical field
The invention belongs to mine safety device technical fields, and in particular to barrier equipment and its coal mine subincline auxiliary fortune
Defeated prevent-moving car system.
Background technique
Anti-running device for incline is one of essential safety devices in incline shaft transport, is being not provided with prevention of sliding-down in inclined well
In the case where device, because take off hook do not use or wrong use keep off a car facility due to cause derailing accident or mine car to run to change slope
When point, due to various reasons caused by unhook derailing accident repeatedly cause equipment damage or interrupt incline shaft transport and cause serious
Economic loss, or even cause casualties.
Catcher can be divided into open in usual and two kinds of normally closed type by its working method；By the driving method point of hoisting mechanism
It is electrical and pneumatic two kinds；It is divided by form and hits dynamic formula, radar type, electrodynamic type, infrared ray etc..
Catcher open in usual is intercepted two parts and is formed by sport car detection and sport car, and blocking apparatus is in normally open,
When detection system detects that bunching is more than the maximum operational speed of setting, blocking apparatus, which is closed, carries out bunching interception.
Normally closed type catcher is made of bunching position detection and arrester position control two parts, is passed through in no mine car
When, the arrester of buffer stop makes entire haulage drift be in closed state under normally off, is having mine car by simultaneously
Close to keep off a car net when, arrester lifts, bunching pass through after, arrester, which is fallen, to be automatically closed, and normally off is again introduced into.
(1) manipulation of electrodynamic type catcher, device is chain with winch depth indicator and is equipped with balance weight realization
It automatically controls, is made of vehilce-blocking door, driving device, balance weight and electric-control system, the disadvantage is that connect with winch depth indicator
Lock uses, and does not work then to the mine car driven over the speed limit.
(2) infrared ray catcher is emitted by winch, depth indicator, travel switch, car lug, infrared ray photoelectric
Device, infrared ray photoelectric receiver (optoelectronic switch), signal identification and controller form, when mine car downlink, by being fixed on tiltedly
Well both sides two groups of infrared generators and receiver induction be enough it is no have mine car pass through and mine car speed, when mine car speed is obvious
Higher than normal speed, device senses exception, and car lug is closed, and the automatic anti-running-away of mine car is realized, the disadvantage is that two groups of photoelectricity are opened
It closes because of subsurface environment humidity, it is necessary to carry out dust that is moisture-proof, and periodically wiping its surface, therefore system must have self-test function
Can, optoelectronic switch operating status is detected automatically when booting daily, is such as found optoelectronic switch failure, to be opened car lug rapidly, and
Alarm signal is sent to control room so as to on-call maintenance.
Above-mentioned vehilce-blocking door and car lug do not have buffer function to the shock of mine car, therefore to dress there is also structure is complicated
A degree of damage can all be caused by setting itself and mine car.
Summary of the invention
In order to solve the above problems existing in the present technology, it is an object of that present invention to provide barrier equipment and its coal mine pairs
Inclined shaft assistant conveyance prevent-moving car system.
The technical scheme adopted by the invention is as follows:
Barrier equipment, including electric machine controller, driving motor, total roller, barrier, frame, bracing wire and weight member, frame
Frame is laterally set to coal mine subincline inner wall, and electric machine controller and driving motor are fixed on frame upper end and electric machine controller and driving
Motor connection is for controlling driving motor work, the output axis connection composition reeling-up reeling-out device of total roller and driving motor；
The bracing wire is fixed and is wrapped in gravity of on total roller and two free ends respectively with the left and right sides for being set to frame
Part connection, weight member slide up and down under the drive of bracing wire along frame, and correspondingly, frame is equipped with sliding limiting slot, and barrier is horizontal
To being set in coal mine subincline and the left and right sides of barrier is connect with weight member.
Driving motor starting rotates forward, and releases bracing wire, while falling under the gravity of weight member, barrier is with gravity
Part falls and falls, and whole process can be completed no more than 10s.
Bracing wire is rolled in driving motor starting reversion, and weight member rises as bracing wire rises, and barrier is in weight member
It rises and rises, until weight member all rises to lower end in the roof of frame and stops.
Based on the above technical solution, the weight member is multiple, and multiple weight members are successively longitudinal from below to up to be set
In the left and right sides of frame.
Based on the above technical solution, the sliding limiting slot extends to frame from the side wall lower ends of frame
The opening of limiting slot is slided inwardly in lower end in roof.
Based on the above technical solution, the weight member is slidably connected at the weight member in bracing wire and being located at bottom
It is fixed with bracing wire, weight member is additionally provided with weight member decompressor, and bracing wire is slidably connected on weight member decompressor.
Based on the above technical solution, more than one limit dress is further respectively had at left and right sides of the reeling-up reeling-out device
It sets, limiting device includes the roller shaft being fixed on frame, and the slave idler wheel with idler wheel axis connection, and bracing wire is fixed and is wrapped in total
On roller and two free ends are overlapped on respectively on the slave idler wheel of the left and right sides of reeling-up reeling-out device, are then connect with weight member.
Based on the above technical solution, the roller shaft is additionally provided with roller shaft decompressor, and the upside of barrier is logical
Cross roller shaft decompressor and idler wheel axis connection.
Coal mine subincline assistant conveyance prevent-moving car system, including multiple barrier equipment, barrier equipment are set to coal mine pair
In inclined shaft；
The coal mine subincline assistant conveyance prevent-moving car system further includes connecting with the electric machine controller of barrier equipment
First signal transceiver, the range unit at each barrier equipment, connect the detection of range unit with range unit
The second signal transceiver and master station's control device that information is transmitted, barrier equipment is by the first signal transceiver and always
Control device of standing communication connection, range unit are communicated to connect by second signal transceiver and master station's control device；
The coal mine subincline assistant conveyance prevent-moving car system further includes being filled by third signal transceiver and master station's control
Set the vehicle carried trigger device of communication connection.
The coal mine subincline assistant conveyance prevent-moving car system further includes controlling with master station based on the above technical solution
The acoustic-optic alarm of device connection processed, acoustic-optic alarm are multiple and are evenly arranged in coal mine subincline.
Based on the above technical solution, the vehicle carried trigger device is alarm switch or velocity sensor.
Based on the above technical solution, the range unit is that infrared distance measuring sensor or ultrasonic distance measurement sense
Device.
Alarm switch is pressed when brake failure or failure and special occur for mine car, coal mine subincline starts to alarm comprehensively, alert
Show other vehicle pulling over observing (forbidding stopping in 15 meters before and after the barrier), acoustic-optic alarm starts sound-light alarm, alarm
Ten seconds or so, and warning message is sent to master station's control device, while mine scheduling and vehicle transport team receive alarm, organize
It is rescued.
Each range unit real-time detection barrier equipment passes through second signal transceiver at a distance from mine car traveling point
Range information is sent to master station's control device.
When alarm switch is pressed, master station's control device receives warning message, according to the range information of real-time reception,
Controlling the work of corresponding barrier equipment, (barrier equipment work when generally barrier equipment is apart from 30-50 meter of mine car, keeps away
Exempt to influence other normal drivings), moment pulls down the barrier equipment, intercepts to mine car, and at this moment mine car front hits obstruction
Net equipment, can the very effective personnel safety protected in vehicle.
The invention has the benefit that
1, the structure of barrier equipment of the invention is simple, works as a buffer to the shock of mine car, avoids barrier and sets
Being damaged for standby itself and mine car, guarantees the security of the lives and property.
2, coal mine subincline assistant conveyance prevent-moving car system energy quick response of the invention and reaction is quick, can 10s it
Interior quick acting utmostly avoids unexpected generation.
Detailed description of the invention
Fig. 1 is the present invention-embodiment coal mine subincline assistant conveyance prevent-moving car system structure diagram.
Fig. 2 is the present invention-embodiment coal mine subincline assistant conveyance prevent-moving car system system block diagram.
Fig. 3 is the present invention-embodiment barrier equipment structural schematic diagram.
Fig. 4 is the working state figure that the present invention-embodiment barrier is rolled.
In figure: 1- barrier equipment；101- driving motor；The total roller of 102-；103- is from idler wheel；104- roller shaft；105-
Barrier；106- frame；107- bracing wire；108- weight member；109- weight member decompressor；110- roller shaft decompressor；2-
Range unit；The first signal transceiver of 3-；The vehicle carried trigger device of 4-；5- acoustic-optic alarm.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is further elaborated.
Embodiment:
As shown in Figs. 1-2, the coal mine subincline assistant conveyance prevent-moving car system of the present embodiment, including it is multiple set on coal mine pair
Barrier equipment 1 in inclined shaft, the first signal transceiver 3 connecting with barrier equipment 1 are set at each barrier equipment 1
Range unit 2, connect the second signal transceiver for transmitting the detection information of range unit 2 with range unit 2, and total
It stands control device.
Wherein, barrier equipment 1 is communicated to connect by the first signal transceiver 3 with master station's control device, and range unit 2 is logical
It crosses second signal transceiver and master station's control device communicates to connect.
Coal mine subincline assistant conveyance prevent-moving car system further includes logical by third signal transceiver 5 and master station's control device
Believe the vehicle carried trigger device 4 of connection.
Coal mine subincline assistant conveyance prevent-moving car system further includes the acoustic-optic alarm 5 connecting with master station control device,
Acoustic-optic alarm 5 is multiple and is evenly arranged in coal mine subincline.
Coal mine subincline assistant conveyance prevent-moving car system further includes power supply device, and power supply device is that entire coal mine subincline is auxiliary
Help transport prevent-moving car system power supply.
Master station's control device includes controller, fourth signal transceiver, input unit and output list connected to the controller
Member, wherein controller uses single-chip microcontroller, and input unit is key, and output unit is display screen, one kind of state display lamp or two
Kind.
Master station's control device also passes through network connection mine total activation room and vehicle transport team, and warning message is sent.
Above-mentioned vehicle carried trigger device 4 is alarm switch, presses report when brake failure or failure and special occur for mine car
Alert switch, coal mine subincline start to alarm comprehensively, other vehicle pulling over observing is warned (to forbid stopping in 15 meters before and after the barrier
Vehicle), acoustic-optic alarm 5 starts sound-light alarm, alarms ten seconds or so, and warning message is sent to master station's control device, together
When mine scheduling and vehicle transport team receive alarm, organize to be rescued.
Each 2 real-time detection barrier equipment 1 of range unit is received and dispatched at a distance from mine car traveling point by second signal
Range information is sent to master station's control device by device.
When alarm switch is pressed, master station's control device receives warning message, according to the range information of real-time reception,
Control the work of corresponding barrier equipment 1 (barrier equipment work when generally barrier equipment is apart from 30-50 meter of mine car,
Avoid influencing other normal drivings), moment pulls down the barrier equipment 1, intercepts to mine car, and at this moment mine car front hits resistance
Block equipment 1, can the very effective personnel safety protected in vehicle.
Or vehicle carried trigger device 4 is velocity sensor, when velocity sensor detects that mine car speed is more than setting
When value, automatic trigger alarm.
Range unit 2 is infrared distance measuring sensor or ultrasonic distance-measuring sensor.
As shown in figure 3, barrier equipment 1 include electric machine controller, driving motor 101, total roller 102, from idler wheel 103,
Roller shaft 104, barrier 105, frame 106, bracing wire 107, weight member 108, weight member decompressor 109 and roller shaft decompression dress
Set 110.
First signal transceiver 3 is connect for receiving and sending messages and being sent to electric machine controller, motor control with electric machine controller
Device processed is connect with driving motor 101 to work for controlling driving motor 101.
Wherein, frame 106 is laterally set to coal mine subincline inner wall, the output axis connection of total roller 102 and driving motor 101
Reeling-up reeling-out device is formed, reeling-up reeling-out device at least two connect composition limiting device, limiting device from idler wheel 103 with roller shaft 104
At least two, reeling-up reeling-out device and limiting device are set to 106 upper end of frame, and limiting device is set to the left and right two of reeling-up reeling-out device
Side, when limiting device is multiple, limiting device equably extends from the upper end of frame 106 to the left and right sides of frame 106.
Illustrate: the left and right sides is the two sidewalls side of coal mine subincline.
Weight member 108 is multiple, the successively longitudinal left and right sides for being set to frame 106 and along frame from below to up of weight member 108
Frame 106 slides up and down, and 106 inner wall of frame is equipped with sliding limiting slot.Sliding limiting slot extends always from the side wall lower ends of frame 106
The lower end into the roof of frame 106, slides the opening of limiting slot inwardly.
Bracing wire 107 is fixed and is wrapped on total roller 102 of reeling-up reeling-out device and two free ends are overlapped on respectively and are set to volume and put
On the slave idler wheel 103 of limiting device at left and right sides of device, then successively it is connect with weight member 108.
In the present embodiment, it is fixedly connected positioned at the weight member of bottom 108 with bracing wire 107, remaining weight member 108 and drawing
Line 107 is slidably connected.
Each weight member 108 is equipped with weight member decompressor 109, and perforation is additionally provided in the middle part of weight member 108, and weight member subtracts
Pressure device 109 is set in the perforation, and bracing wire 107 is slidably connected with weight member decompressor 109, passes through weight member decompressor
109 connect with weight member 108.
Each roller shaft 104 is equipped with roller shaft decompressor 110, and output is additionally provided on the output shaft of driving motor 101
Axis decompressor.
Barrier 105 is laterally set in coal mine subincline, and barrier 105 and each weight member 108, each roller shaft depressurize
Device 110 and output shaft decompressor are all connected with, and barrier 105 forms reticular structure by vertical line and x wire.
In the present embodiment, the upper end of barrier 105 is also fixed with roller shaft decompressor 110 and output shaft decompressor
It connects and is wrapped on roller shaft 104 and output shaft, volume puts barrier 105 the case where roller shaft 104 and output shaft rotate
Vertical line.
In the present embodiment, weight member 108 is fabricated from iron.
As shown in figure 3, reeling-up reeling-out device is 2, volume puts the bracing wire 107 of side respectively, and limiting device is 8, the left and right sides
Each 4, weight member 108 is 14, and each side 7, limiting device, weight member 108 are successively arranged along frame 106.
As shown in 3,4, the course of work of the invention are as follows:
Barrier equipment is started to work by the order that the first signal transceiver 3 receives master station's control device；
The starting of driving motor 101 rotates forward, and releases bracing wire 107, while falling under the gravity of weight member 108, stops
Net 105 falls as weight member 108 falls, and whole process can be completed no more than 10s.
The starting reversion of driving motor 101, rolls bracing wire 107, and weight member 108 rises, barrier as bracing wire 107 rises
105 rise as weight member 108 rises, until weight member 108 all rises to lower end in the roof of frame 106 and stops.
The structure of barrier equipment of the invention is simple, works as a buffer to the shock of mine car, avoids barrier equipment
Itself and mine car are damaged, the guarantee security of the lives and property.
The present invention is not limited to above-mentioned optional embodiment, anyone can show that other are various under the inspiration of the present invention
The product of form, however, make any variation in its shape or structure, it is all to fall into the claims in the present invention confining spectrum
Technical solution, be within the scope of the present invention.
Claims (10)
1. barrier equipment (1), it is characterised in that: including electric machine controller, driving motor (101), total roller (102), stop
Net (105), frame (106), bracing wire (107) and weight member (108), frame are laterally set to coal mine subincline inner wall, motor control
Device and driving motor are fixed on frame upper end and electric machine controller is connect for controlling driving motor work, total roller with driving motor
The output axis connection of wheel and driving motor forms reeling-up reeling-out device；
The bracing wire is fixed and is wrapped on total roller and two free ends to be connected with the weight member for the left and right sides for being set to frame respectively
It connects, weight member slides up and down under the drive of bracing wire along frame, and correspondingly, frame is equipped with sliding limiting slot, and barrier is laterally set
It is connect in the coal mine subincline and left and right sides of barrier with weight member.
2. barrier equipment according to claim 1, it is characterised in that: the weight member be it is multiple, multiple weight members from
Successively longitudinal direction is set to the left and right sides of frame on down.
3. barrier equipment according to claim 1, it is characterised in that: the sliding side wall lower ends of the limiting slot from frame
Lower end in the roof of frame is extended to, slides the opening of limiting slot inwardly.
4. barrier equipment according to claim 2, it is characterised in that: the weight member is slidably connected in bracing wire and position
It is fixed in the weight member of bottom with bracing wire, weight member is additionally provided with weight member decompressor (109), and bracing wire is slidably connected at gravity
On part decompressor.
5. barrier equipment according to claim 1, it is characterised in that: the left and right sides of the reeling-up reeling-out device is also set respectively
There is more than one limiting device, limiting device includes the roller shaft (104) being fixed on frame, and with idler wheel axis connection from rolling
It takes turns (103), bracing wire is fixed and is wrapped on total roller and two free ends are overlapped on respectively set on the left and right sides of reeling-up reeling-out device
From idler wheel, then it is connect with weight member.
6. barrier equipment according to claim 5, it is characterised in that: the roller shaft is additionally provided with roller shaft decompressor
(110), the upside of barrier passes through roller shaft decompressor and idler wheel axis connection.
7. coal mine subincline assistant conveyance prevent-moving car system, it is characterised in that: including multiple such as claim 1-6 any one institute
The barrier equipment stated, barrier equipment are set in coal mine subincline；
The coal mine subincline assistant conveyance prevent-moving car system further includes first connect with the electric machine controller of barrier equipment
Signal transceiver (3), the range unit (2) at each barrier equipment, connect the inspection of range unit with range unit
The second signal transceiver and master station's control device that measurement information is transmitted, barrier equipment by the first signal transceiver with
The communication connection of master station's control device, range unit are communicated to connect by second signal transceiver and master station's control device；
The coal mine subincline assistant conveyance prevent-moving car system further includes logical by third signal transceiver and master station's control device
Believe the vehicle carried trigger device (4) of connection.
8. coal mine subincline assistant conveyance prevent-moving car system according to claim 7, it is characterised in that: the coal mine is secondary tiltedly
Well assistant conveyance prevent-moving car system further includes the acoustic-optic alarm (5) connecting with master station control device, and acoustic-optic alarm is
It is multiple and be evenly arranged in coal mine subincline.
9. coal mine subincline assistant conveyance prevent-moving car system according to claim 7, it is characterised in that: described vehicle carried
Trigger device is alarm switch or velocity sensor.
10. coal mine subincline assistant conveyance prevent-moving car system according to claim 7, it is characterised in that: the ranging dress
It is set to infrared distance measuring sensor or ultrasonic distance-measuring sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910533862.3A CN110126875B (en) | 2019-06-19 | Blocking net equipment and auxiliary transportation anti-running system for auxiliary inclined shaft of coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910533862.3A CN110126875B (en) | 2019-06-19 | Blocking net equipment and auxiliary transportation anti-running system for auxiliary inclined shaft of coal mine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110126875A true CN110126875A (en) | 2019-08-16 |
| CN110126875B CN110126875B (en) | 2024-07-16 |
Family
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982454A (en) * | 2020-08-28 | 2020-11-24 | 中国空气动力研究与发展中心高速空气动力研究所 | Arresting net protection system for flutter wind tunnel test and protection method thereof |
| CN113548082A (en) * | 2021-03-08 | 2021-10-26 | 国电建投内蒙古能源有限公司 | Inclined shaft sports car protection system |
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| CN203876777U (en) * | 2014-05-30 | 2014-10-15 | 攀枝花煤业（集团）有限责任公司攀煤集团设备管理处 | Double-hook blocking net type vehicle blocking fence |
| CN203902575U (en) * | 2014-06-02 | 2014-10-29 | 王传团 | Inclined roadway signal comprehensive intelligent sliding-down-proof device |
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| CN104966455A (en) * | 2015-06-04 | 2015-10-07 | 河南理工大学 | Inclined shaft anti-car-running teaching and training device |
| CN107176181A (en) * | 2016-03-10 | 2017-09-19 | 六盘水师范学院 | A kind of coal mine underground inclined tunnel car-running prevention system |
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| CN111982454A (en) * | 2020-08-28 | 2020-11-24 | 中国空气动力研究与发展中心高速空气动力研究所 | Arresting net protection system for flutter wind tunnel test and protection method thereof |
| CN111982454B (en) * | 2020-08-28 | 2022-12-23 | 中国空气动力研究与发展中心高速空气动力研究所 | Arresting net protection system for flutter wind tunnel test and protection method thereof |
| CN113548082A (en) * | 2021-03-08 | 2021-10-26 | 国电建投内蒙古能源有限公司 | Inclined shaft sports car protection system |
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