CN105539487B - Derail detector and its detection method based on side frame positioning - Google Patents
Derail detector and its detection method based on side frame positioning Download PDFInfo
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- CN105539487B CN105539487B CN201511023097.9A CN201511023097A CN105539487B CN 105539487 B CN105539487 B CN 105539487B CN 201511023097 A CN201511023097 A CN 201511023097A CN 105539487 B CN105539487 B CN 105539487B
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- side frame
- laser displacement
- base surface
- processor
- installation base
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F9/00—Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels
- B61F9/005—Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels by use of non-mechanical means, e.g. acoustic or electromagnetic devices
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- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention discloses a kind of Derail detector and its detection method based on side frame positioning, wherein, Derail detector is installed on the side frame end of bogie, including fulcrum bearing, crossbeam, laser displacement gauge and processor system；The present invention also provides its detection method in addition, by the Derail detector and detection method, the warning function before rail truck derailing is realized, solves the problems, such as the unpredictable derailing of rail truck, to ensure safety of railway traffic, reduce freight car deraicment accident and provide guarantee.
Description
Technical field
The present invention relates to railway transportation equipment technical field, and in particular to a kind of Derail detector based on side frame positioning
And its detection method.
Background technology
Train derailing is the operating great driving accident of rail truck.The generation of derailment accident, vehicle, goods will be caused
The damage of thing, transit equipment and communication apparatus, life will be also injured when serious, therefore paid much attention to by countries in the world.From
After China railways speed-raising in 1997, goods train derailing is on the rise；Nearly l0, derailment accident are driven a vehicle in China railways
Ratio in great, major break down is up to 70% or so.To ensure safety of railway traffic, the countermeasure of strick precaution is found out, lorry is reduced and takes off
Rail accident is an important and pressing task.
The reason for causing derailment accident is more complicated, that is, has human factor, apparatus factor, also natural calamity etc..Derailing
Accident can greatly reduce after train operation performance is improved, strengthen staff quality and safety education, but can not possibly prevent completely,
Because irresistible natural calamity is one of the main reason for causing derailing.
Though derailing is inevitable, can increase on vehicle after Derail detector reaches early warning before derailing and derail
Brake the effect of detraction.At present, derail braking technology comparative maturity, and the carriage derailment automatic arresting device that Nan Che companies develop is wide
The general 70t levels that are applied to are with Truck, significant effect；Relative, it can realize that the derailing detection technique of warning function also can not
Put into and use by product.Current rail parent company has begun to the development work of tissue red ball, and Jinzhong City's south heavy carrying coal is special
Line also uses input, and the fast freight heavy duty requirements of railway freight-car are more and more urgent, and realize one of key technology of these targets
Exactly prevent vehicle derailing.But be currently directed to derailing problem main development is derailing braking technology, has derailing early warning work(
The product of energy because technical difficulty is big, has no scale successful case, still in the market vacancy phase, it is latent also in experimental stage
Power and value are very huge.Therefore it is the research topic being significant to develop Derail detector and detection method.
The content of the invention
It is an object of the invention to provide a kind of Derail detector and its detection method based on side frame positioning, iron is realized
Warning function before road vehicle derailing, solve the problems, such as the unpredictable derailing of rail truck, to ensure safety of railway traffic, reduce
Freight car deraicment accident provides possibility.
To achieve the above object, the present invention designed by based on side frame positioning Derail detector, mounted in pairs in turn
The both ends end for two side frames being arranged in parallel on to frame, it is characterized in that：
It includes two pairs of fulcrum bearings, two crossbeams and two pairs of laser displacement gauges and processor system；
The cast mould of fulcrum bearing is integrally formed, and is combined by installation base surface, gusset and connecting plate；The installation
Basal plane one end and gusset one end junction form knuckle, and the connecting plate is similar triangle plate shape, its one side and installation base surface
Connection, its another side and link of boards, the installation base surface offer mounting hole；The gusset other end end is provided with installation and cut with scissors
Connect hole；
The installation base surface of the fulcrum bearing is fixedly installed in the end position of side frame, and it is in the same direction that the crossbeam is located at two side frames
Between two fulcrum bearings for holding end, and installation hinge hole of the both ends of the crossbeam respectively with two fulcrum bearings is hinged；
The laser displacement gauge and processor system are symmetrically mounted on the inside of the both ends of crossbeam, and the laser displacement gauge with
Processor system is located at directly over railway track, so as to be used for measuring Uplifting amount of the wheel relative to railway track, and according to lift
Rising amount carries out data processing and judgement.
Preferably, the installation base surface of the fulcrum bearing is fixedly installed in by the rivet or bolt being engaged with its mounting hole
The end position of side frame.
Preferably, the processor of the laser displacement gauge and processor system is single-chip microcomputer.
Further, the quantity that the installation base surface opens up mounting hole is four, and mounting hole is in matrix distribution.
In addition, the present invention also provides the derailing detection method of the Derail detector based on side frame positioning, its is special
Part is：Comprise the following steps：
1) laser displacement gauge is started shooting with processor system, and laser displacement gauge is gathered in itself apart from rail by laser displacement gauge
The vertical range data of upper surface, the data of the m times collection are designated as Hm；The average value that data are calculated by processor is used as this
The datum mark of measurement, is designated as H0；
2)HmWith H0Ask poor, that is, it is h to obtain wheel relative to the Uplifting amount of railm=Hm-H0, for performing judgement；
If 3) the m times numerical value hmValue is more than set safety value, processor minute book time data hm, labeled as 1 time；
If 4) the m+1 times numerical value hm+1More than the m times numerical value hm, processor minute book time data hm+1, labeled as 2 times；
If 5) the m+2 times numerical value hm+2More than the m+1 times numerical value hm+1, labeled as 3 times；
If 6) continuously meet above-mentioned steps 3), step 4) and step 5), processor sends alarm signal, until hmValue
Less than set safety value；
If 7) do not meet above-mentioned steps 3 continuously), step 4) and step 5), continue sampling and judge, do not alarm.
In the above-mentioned technical solutions, safety value and h are passed throughm, hmWith hm+1, hm+1With hm+2It is continuous three times relatively, drop significantly
It is low because wrong report caused by the line impairment such as circuit damage, rail gap and track switch.
Laser displacement gauge primarily serves two effects in use with processor system：First, the operation shape of monitoring bogie
State；Second, send warning message before vehicle derailment danger.
Beneficial effect of the present invention：The Derail detector and detection method positioned by this based on side frame, realizes railway carriage
Warning function before derailing, solves the problems, such as the unpredictable derailing of rail truck, to ensure safety of railway traffic, reduces goods
Car derailment accident provides guarantee.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the Derail detector based on side frame positioning；
Fig. 2 is the dimensional structure diagram of fulcrum bearing in Fig. 1；
Fig. 3 is the main structure diagram of fulcrum bearing in Fig. 2；
Fig. 4 is a kind of detection method schematic flow sheet of the Derail detector based on side frame positioning；
Fig. 5 is the normal contact condition schematic diagram of wheel track；
Fig. 6 is that wheel rim reclines view；
Fig. 7 is persistently to climb rail view；
Fig. 8 is derailing view.
In figure, side frame 1, fulcrum bearing 2, installation base surface 2a, gusset 2b, connecting plate 2c, mounting hole 2d, installation hinge hole 2e,
Crossbeam 3, laser displacement gauge and processor system 4, wheel 5, rail 6.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
The Derail detector based on side frame positioning as shown in Figure 1 to Figure 3, its mounted in pairs is in parallel cloth on bogie
The both ends end for two side frames 1 put；
It also includes two pairs of fulcrum bearings, 2, two crossbeams 3 and two pairs of laser displacement gauges and processor system 4；
The 2 cast mould of fulcrum bearing is integrally formed, and is combined by installation base surface 2a, gusset 2b and connecting plate 2c；
Described installation base surface 2a one end and gusset 2b one end junction forms knuckle；The connecting plate 2c is similar triangle plate shape, its
While being connected with installation base surface 2a, its another side is connected with gusset 2b, and the installation base surface 2a offers mounting hole 2d；The muscle
Plate 2b other ends end is provided with installation hinge hole 2e；The quantity that the installation base surface 2a opens up mounting hole 2d is four, and is installed
Hole 2d is in matrix distribution；
The installation base surface 2a of the fulcrum bearing 2 is fixedly installed in side by the rivet or bolt being engaged with its mounting hole 2d
The end position of frame 1, the crossbeam 3 are located between two side frames 1 hold two fulcrum bearings 2 of end in the same direction, and the crossbeam 3
Installation hinge hole 2e of the both ends respectively with two fulcrum bearings 2 is hinged；
The laser displacement gauge is symmetrically mounted on processor system 4 on the inside of the both ends of crossbeam 3, and the laser displacement gauge
It is located at processor system 4 directly over railway track 6, so as to be used for measuring Uplifting amount of the wheel 5 relative to railway track 6, and
Data processing and judgement are carried out according to Uplifting amount；
The processor of the laser displacement gauge and processor system 4 uses single chip computer architecture.
The disclosed derailing detection method of the present embodiment, as shown in figure 4, comprising the following steps：
Step 1)：Laser displacement gauge is started shooting with processor system 4, by laser displacement gauge itself apart from the upper table of rail 6
The vertical range data in face, the data of the m times collection are designated as Hm；After the present embodiment selection t ＞ 5s, data are calculated by processor
The datum mark that is measured as this of average value, be designated as H0；
Step 2)：HmWith H0Ask poor, that is, it is h to obtain wheel 5 relative to the Uplifting amount of rail 6m=Hm-H0, sentence for performing
It is disconnected；
Step 3)：If the m times numerical value hmValue is more than set safety value, and the present embodiment sets safety value as 12mm,
Processor minute book time data hm, labeled as 1 time；
Step 4)：If the m+1 times numerical value hm+1More than the m times numerical value hm, processor minute book time data hm+1, it is labeled as
2 times；
Step 5)：If the m+2 times numerical value hm+2More than the m+1 times numerical value hm+1, labeled as 3 times；
Step 6)：If continuously meeting above-mentioned steps 3), step 4) and step 5), processor sends alarm signal to taking charge of
Machine room, until hmValue is less than set safety value；
Step 7)：If not meeting above-mentioned steps 3 continuously), step 4) and step 5), continue sampling and judge, do not report
It is alert.
Rail derailment course is climbed with reference to wheel 5, its detection of derailing is described in detail below：
First, normal condition
As shown in figure 5, during rail truck normal operation in orbit, wheel 5 does small size snake centered on the center line of rail 6
Shape is moved, and the wheel rim of wheel 5 do not clinged on rail 6, wheel 5 relative to rail 6 Uplifting amount hmIt is zero；
2nd, wheel rim reclines state
If as shown in fig. 6, under certain specified conditions, wheel 5 is very big to the cross force of rail 6, and wheel 5 gives rail
6 vertical force very little, so that the contact point new in rolling process of wheel 5 is gradually shifted at the top of wheel rim, wheel 5 gradually rises.
Wheel 5 relative to rail 6 Uplifting amount hmGradually increase, works as hmValue is more than safety value, processor minute book time data hm, mark
For 1 time；
3rd, track-like state is persistently climbed
As shown in fig. 7, if the position of contact point reaches the flex point on wheel rim arc surface on wheel rim, i.e., wheel rim root is with
At portion's circular sliding slopes during maximum some in wheel rim inclination angle, arrival is climbed to the critical point of rail.If before critical point is reached laterally
Power reduces or vertical force increase, then wheel returns to original settling position to still possible slide downward.When contact point postcritical
After, if the change of cross force, vertical force is little, wheel 5 is possible to gradually climb up rail 6 and derail.
During this, wheel 5 relative to rail 6 Uplifting amount hmValue continues to increase, hm+1More than hm, labeled as 2 times, hm+2
More than hm+1, labeled as 3 times, then send alarm signal；
4th, derailing state
As shown in figure 8, if wheel 5 continues to climb rail, will climb up rail 6 reach the top surface of rail 6 at the top of wheel rim and
Derailing.
Claims (4)
1. a kind of Derail detector based on side frame positioning, mounted in pairs is in two side frames (1) being arranged in parallel on bogie
Both ends end, it is characterised in that：
It includes two pairs of fulcrum bearings (2), two crossbeams (3) and two pairs of laser displacement gauges and processor system (4)；
The cast mould of the fulcrum bearing (2) is integrally formed, by the combination of installation base surface (2a), gusset (2b) and connecting plate (2c)
Into；Described installation base surface (2a) one end and gusset (2b) one end junction form knuckle, and the connecting plate (2c) is similar triangle
Plate shape, its one side are connected with installation base surface (2a), and its another side is connected with gusset (2b), and the installation base surface (2a) offers
Mounting hole (2d)；Gusset (2b) other end end is provided with installation hinge hole (2e)；
The installation base surface (2a) of the fulcrum bearing (2) is fixedly installed in the end position of side frame (1), and the crossbeam (3) is located at two
Individual side frame (1) in the same direction end end two fulcrum bearings (2) between, and the both ends of the crossbeam (3) respectively with two fulcrum bearings (2)
Installation hinge hole (2e) it is be hinged；
The laser displacement gauge is symmetrically mounted on processor system (4) on the inside of the both ends of crossbeam (3), and the laser displacement gauge
It is located at processor system (4) directly over railway track (6), so as to for measuring lift of the wheel (5) relative to railway track (6)
Rising amount, and data processing and judgement are carried out according to Uplifting amount；
The detection method of the Derail detector based on side frame positioning comprises the following steps：
1) laser displacement gauge is started shooting with processor system (4), and laser displacement gauge is gathered in itself apart from rail by laser displacement gauge
(6) the vertical range data of upper surface, the data of the m times collection are designated as Hm；The average value that data are calculated by processor is used as
The datum mark of this measurement, is designated as H0；
2)HmWith H0Ask poor, that is, it is h to obtain wheel (5) relative to the Uplifting amount of rail (6)m=Hm-H0, for performing judgement；
If 3) the m times numerical value hmValue is more than set safety value, processor minute book time data hm, labeled as 1 time；
If 4) the m+1 times numerical value hm+1More than the m times numerical value hm, processor minute book time data hm+1, labeled as 2 times；
If 5) the m+2 times numerical value hm+2More than the m+1 times numerical value hm+1, labeled as 3 times；
If 6) continuously meet above-mentioned steps 3), step 4) and step 5), processor sends alarm signal, until hmValue is less than
Set safety value；
If 7) do not meet above-mentioned steps 3 continuously), step 4) and step 5), continue sampling and judge, do not alarm.
2. the Derail detector according to claim 1 based on side frame positioning, it is characterised in that：The fulcrum bearing (2)
Installation base surface (2a) the end position of side frame (1) is fixedly installed in by the rivet or bolt that are engaged with its mounting hole (2d)
Put.
3. the Derail detector according to claim 1 based on side frame positioning, it is characterised in that：The laser displacement gauge
Processor with processor system (4) is single-chip microcomputer.
4. the Derail detector according to claim 1 based on side frame positioning, it is characterised in that：The installation base surface
The quantity that (2a) opens up mounting hole (2d) is four, and mounting hole (2d) is in matrix distribution.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511023097.9A CN105539487B (en) | 2015-12-30 | 2015-12-30 | Derail detector and its detection method based on side frame positioning |
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| CN201511023097.9A CN105539487B (en) | 2015-12-30 | 2015-12-30 | Derail detector and its detection method based on side frame positioning |
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| CN105539487B true CN105539487B (en) | 2018-03-13 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105539488B (en) * | 2015-12-30 | 2018-03-27 | 中车长江车辆有限公司 | Derailing bogie and its derailing detection method based on side frame detection and localization |
| CN107521520B (en) * | 2017-08-18 | 2019-04-05 | 唐智科技湖南发展有限公司 | A kind of method and system of wheel derailment early warning |
| CN108284853B (en) * | 2018-01-05 | 2019-09-27 | 株洲时代电子技术有限公司 | A kind of contact net comprehensive operation vehicle overturn-preventing protection system and method |
| CN108860205B (en) * | 2018-08-03 | 2023-11-07 | 中车株洲电力机车有限公司 | Derailment detection method and device for railway vehicle |
| CN115511394A (en) * | 2022-11-16 | 2022-12-23 | 石家庄铁道大学 | Derailing early warning method and system for tunnel rail locomotive |
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