CN104442913A - Railway vehicle monitoring device - Google Patents
Railway vehicle monitoring device Download PDFInfo
- Publication number
- CN104442913A CN104442913A CN201410712772.8A CN201410712772A CN104442913A CN 104442913 A CN104442913 A CN 104442913A CN 201410712772 A CN201410712772 A CN 201410712772A CN 104442913 A CN104442913 A CN 104442913A
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- China
- Prior art keywords
- acceleration
- monitoring device
- guideway vehicle
- processor
- vehicle monitoring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012806 monitoring device Methods 0.000 title claims abstract description 37
- 230000001133 acceleration Effects 0.000 claims abstract description 106
- 239000004575 stone Substances 0.000 claims description 17
- 238000009413 insulation Methods 0.000 claims description 9
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 description 7
- 239000000725 suspension Substances 0.000 description 4
- 238000010408 sweeping Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/04—Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault
- B61K9/06—Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault by detecting or indicating heat radiation from overheated axles
-
- 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
- B61F19/00—Wheel guards; Bumpers; Obstruction removers or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
- B61L25/021—Measuring and recording of train speed
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
The invention discloses a railway vehicle monitoring device which comprises a bogie frame, acceleration sensors, an acceleration warning piece and an acceleration processor. The acceleration warning piece and the acceleration sensors are connected with the acceleration processor, and the acceleration sensors are arranged at two ends of the bogie frame. In the railway vehicle monitoring device, the transverse acceleration of a railway vehicle is monitored through the acceleration sensors in real time, the acceleration processor conducts real-time acceleration comparison on the railway vehicle and controls the acceleration warning piece to give an alarm when acceleration sensor values are larger than a predetermined value or an acceleration peak value is continuously larger than a limit time speed value, a worker timely conducts speed reduction treatment on the railway vehicle and avoids the phenomenon that the transverse acceleration of the railway vehicle is too large and accordingly internal transverse vibration is intensified. Therefore, the railway vehicle monitoring device can improve the running safety of the railway vehicle.
Description
Technical field
The present invention relates to rail vehicle technical field, particularly a kind of guideway vehicle monitoring device.
Background technology
Guideway vehicle is as the vehicle travelled on trapped orbit, and it is for transporting personnel and goods.Along with the development of science and technology, the running velocity of guideway vehicle is more and more faster, and the safety of its guideway vehicle is particularly important.Bearing is as the turning unit of train operation, and its safety is the guarantee of guideway vehicle safe operation.
Due to, guideway vehicle is when high-speed cruising, and truck frame easily occurs serpentine locomotion, and transverse acceleration is easily accelerated, and guideway vehicle easily occurs making people feel uncomfortable lateral vibration, can cause the safety misadventure of guideway vehicle time serious.
Therefore, how improving the driving safety of guideway vehicle, is those skilled in the art's technical matterss urgently to be resolved hurrily.
Summary of the invention
The object of this invention is to provide a kind of guideway vehicle monitoring device, this guideway vehicle monitoring device can improve the driving safety of guideway vehicle.
For achieving the above object, the invention provides a kind of guideway vehicle monitoring device, comprise truck frame, also comprise acceleration pick-up, acceleration/accel warning piece, acceleration processor, described acceleration/accel warning piece is all connected with described acceleration processor with described acceleration pick-up, and the two ends of described truck frame are equipped with acceleration pick-up.
Preferably, also comprise train main frame, train extension set and be arranged on the acceleration/accel telltale on described train main frame and described train extension set, described acceleration/accel telltale is connected with described acceleration processor.
Preferably, the bearing temperature alarm parts also comprising Temperature processor, be arranged on the shaft temperature sensor on described truck frame and be connected with described Temperature processor, described Temperature processor is connected with described shaft temperature sensor.
Preferably, also comprise the ring temperature sensor being arranged on described truck frame side, described Temperature processor is connected with described ring temperature sensor.
Preferably, also comprise the temperature indicator be arranged on described train main frame and described train extension set, described temperature indicator is connected with described Temperature processor.
Preferably, also comprise brake head, clamp, wheel and be set in the insulation wear-resistant sleeve be connected on described clamp and with described brake head and described clamp.
Preferably, described insulation wear-resistant sleeve is nylon jacket.
Preferably, also comprise the journal box body swept stone implement and be arranged on described truck frame, described in sweep stone implement and be arranged on described journal box body.
Preferably, stone implement is swept described in and described journal box body removably connects.
In technique scheme, guideway vehicle monitoring device provided by the invention comprises truck frame, acceleration pick-up, acceleration/accel warning piece, acceleration processor, acceleration/accel warning piece is all connected with acceleration processor with acceleration pick-up, and the two ends of truck frame are equipped with acceleration pick-up.Guideway vehicle is in operation, the transverse acceleration of acceleration pick-up Real-Time Monitoring truck frame, then truck frame transverse acceleration numerical value is passed to acceleration processor, when acceleration pick-up numerical value is less than predetermined value or acceleration peak value continues to exceed below restriction number of times velocity amplitude, guideway vehicle normally runs, and acceleration/accel warning piece does not work; When acceleration pick-up numerical value is greater than predetermined value or acceleration peak value continues to exceed more than restriction number of times velocity amplitude, acceleration/accel warning piece is reported to the police, and staff receives alarm message and carries out reduction of speed traveling to guideway vehicle.
Known by foregoing description, in guideway vehicle monitoring device provided by the invention, by the transverse acceleration of acceleration pick-up Real-Time Monitoring guideway vehicle, acceleration processor contrasts guideway vehicle real time acceleration, when acceleration pick-up numerical value is greater than predetermined value or acceleration peak value continues to exceed more than restriction number of times velocity amplitude, acceleration processor controls acceleration/accel warning piece and reports to the police, staff carries out reduction of speed process to guideway vehicle in time, avoid rail vehicle transversal acceleration/accel excessive, its inner transverse is caused to vibrate the situation of aggravation, therefore, the guideway vehicle monitoring device that the application provides can improve the driving safety of guideway vehicle.
Accompanying drawing explanation
The installation site figure of the insulation wear-resistant sleeve that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is the portion of A shown in Fig. 1 enlarged drawing;
The installation site figure sweeping stone implement that Fig. 3 provides for the embodiment of the present invention;
The circuit connection diagram of the guideway vehicle monitoring device that Fig. 4 provides for the embodiment of the present invention;
The left view of the guideway vehicle monitoring device that Fig. 5 provides for the embodiment of the present invention;
The front view of the guideway vehicle monitoring device that Fig. 6 provides for the embodiment of the present invention;
The birds-eye view of the guideway vehicle monitoring device that Fig. 7 provides for the embodiment of the present invention.
Wherein in Fig. 1-7: 1-brake head, 2-insulate wear-resistant sleeve, 3-clamp, 4-journal box body, 5-sweeps stone implement, 6-track, 7-train main frame, 8-power supply, 9-train extension set, 10-acceleration pick-up, 11-acceleration processor, 12-shaft temperature sensor, 13-Temperature processor, 14-ring temperature sensor, 15-integral lifting device, 16-single stage suspension device, 17-arrangement for adjusting height, 18-secondary suspension device, 19-treater, 20-brake clamp unit, 21-truck frame, 22-wheel is assembled axle box, 23-actuating device, 24-rim lubricating device, 25-draw gear, 26-signal cable, 27-torsion bar mechanism for preventing side rolling of train carriage.
Detailed description of the invention
Core of the present invention is to provide a kind of guideway vehicle monitoring device, and this guideway vehicle monitoring device can improve the driving safety of guideway vehicle.
In order to make those skilled in the art understand technical scheme of the present invention better, below in conjunction with drawings and embodiments, the present invention is described in further detail.
Please refer to Fig. 1 to Fig. 7, in a kind of detailed description of the invention, guideway vehicle monitoring device provided by the invention comprises integral lifting device 15, single stage suspension device 16, arrangement for adjusting height 17, secondary suspension device 18, take turns axle box assembling 22, actuating device 23, rim lubricating device 24, draw gear 25, torsion bar mechanism for preventing side rolling of train carriage 27, truck frame 21, acceleration pick-up 10, acceleration/accel warning piece, acceleration processor 11, acceleration/accel warning piece is all connected with acceleration processor 11 with acceleration pick-up 10, the two ends of truck frame 21 are equipped with acceleration pick-up 10.Concrete, the acceleration pick-up 10 at truck frame 21 two ends is that downward skew symmetry is arranged with the line of centers of truck frame 21, and acceleration pick-up 10 is all connected by signal cable 26 with acceleration/accel warning piece with acceleration processor 11 and acceleration processor 11.Acceleration processor 11 specifically can be arranged on the middle part of truck frame 21 curb girder.
Guideway vehicle is in operation, guideway vehicle travels on track 6, the transverse acceleration of acceleration pick-up 10 Real-Time Monitoring truck frame 21, then truck frame 21 transverse acceleration numerical value is passed to acceleration processor 11, when acceleration pick-up 10 numerical value is less than predetermined value or acceleration peak value continues to exceed below restriction number of times velocity amplitude, guideway vehicle normally runs, and acceleration/accel warning piece does not work; When acceleration pick-up 10 numerical value is greater than predetermined value or acceleration peak value continues to exceed more than restriction number of times velocity amplitude, acceleration/accel warning piece is reported to the police, and staff receives alarm message and carries out reduction of speed traveling to guideway vehicle.
Known by foregoing description, in the guideway vehicle monitoring device that the specific embodiment of the invention provides, by the transverse acceleration of acceleration pick-up 10 Real-Time Monitoring guideway vehicle, acceleration processor 11 pairs of guideway vehicle real time acceleration contrast, when acceleration pick-up 10 numerical value is greater than predetermined value or acceleration peak value continues to exceed more than restriction number of times velocity amplitude, acceleration processor 11 controls acceleration/accel warning piece and reports to the police, staff carries out reduction of speed process to guideway vehicle in time, truck frame 21 is installed a set of on-line fault diagnosis monitoring system, to bearing state, truck frame 21 lateral stability carries out on-line real time monitoring, effectively can stop the generation of driving hot box accident and bogie truck unstability, ensure safe train operation.Avoid rail vehicle transversal acceleration/accel excessive, cause its inner transverse to vibrate the situation of aggravation, therefore, the guideway vehicle monitoring device that the application provides can improve the driving safety of guideway vehicle.
Further, the acceleration/accel telltale that this guideway vehicle monitoring device also comprises train main frame 7, train extension set 9 and is arranged on train main frame 7 and train extension set 9, wherein train main frame 7 is installed in car body with train extension set 9 and is connected with power supply 8, and acceleration/accel telltale is connected with acceleration processor 11.By arranging acceleration/accel telltale, staff can learn the acceleration magnitude of guideway vehicle in time, is convenient to the running state that staff learns guideway vehicle in time.
In order to improve the safety in operation of guideway vehicle further, the bearing temperature alarm parts that this guideway vehicle monitoring device also comprises Temperature processor 13, is arranged on the shaft temperature sensor 12 on truck frame 21 and is connected with Temperature processor 13, Temperature processor 13 is connected with shaft temperature sensor 12, in order to save space, Temperature processor 13 and acceleration processor 11 can be same treater 19.Being convenient to the mode of operation of the timely monitoring bearing of staff by arranging shaft temperature sensor 12, avoiding bearing at high temperature to work and occurring dangerous situation.When bearing temperature is higher than preset temperature, Temperature processor 13 controls axle temperature warning piece and reports to the police, and staff receives alerting signal, stops guideway vehicle running.
Further, this guideway vehicle monitoring device also comprises the ring temperature sensor 14 being arranged on truck frame 21 side, and bearing temperature alarm parts are connected with Temperature processor 13, and Temperature processor 13 is connected with ring temperature sensor 14.When the temperature rise value that ring temperature sensor 14 records (difference of bearing temperature value and ambient temperature value) exceedes default temperature rise value, Temperature processor 13 controls axle temperature warning piece and reports to the police.By arranging ring temperature sensor 14, be convenient to the temperature rise that staff measures truck frame 21 head bearing comprehensively further.
Further, this guideway vehicle monitoring device also comprises the temperature indicator be arranged on train main frame 7 and train extension set 9, and temperature indicator is connected with Temperature processor 13.Be convenient to staff by temperature indicator and observe bearing temperature situation in time.Install temperature indicator for the ease of staff, preferably, temperature indicator and acceleration/accel telltale are same telltale.
Preferably, this guideway vehicle monitoring device also comprises brake head 1, clamp 3, wheel and is set on clamp 3, and the insulation wear-resistant sleeve 2 be connected with brake head 1 and clamp 3, wherein brake clamp unit 20 comprises brake head 1 and clamp 3.Concrete, this insulation wear-resistant sleeve 2 can be PTFE anti-wear cover, and in order to reduce the manufacturing cost of guideway vehicle, preferably, insulation wear-resistant sleeve 2 is nylon jacket.By arrange insulation wear-resistant sleeve 2 can play wear-resisting effect, wheel and brake unit can insulates again, avoid because of electric current flow through brake lining thus puncture brake lining cause brake lining fracture, stripping situation, further increase the driving safety of guideway vehicle.
On the basis of above-mentioned each scheme, this guideway vehicle monitoring device also comprises the journal box body 4 swept stone implement 5 and be arranged on truck frame 21, sweeps stone implement 5 and is arranged on journal box body 4.Be arranged on journal box body 4 owing to sweeping stone implement 5, avoid sweeping stone implement 5 and be arranged on loaded down with trivial details assembling on truck frame 21 and sweep the situation of stone implement 5, be convenient to staff and install and sweep stone implement 5.
Sweep stone implement 5 for the ease of staff's dismounting, preferably, sweep stone implement 5 and removably connect with journal box body 4.Concrete, sweeping stone implement 5 can be connected with journal box body 4 by threaded fasteners.
Receive alerting signal in time for the ease of staff, preferred acceleration/accel warning piece and/or bearing temperature alarm parts are sound and light alarm parts.Further, acceleration processor 11 and Temperature processor 13 can carry out the warning of different stage according to acceleration/accel and temperature occurrence, the size of such as sound or adopt different music.
In order to further improve the safety in operation of guideway vehicle, preferably at motor-driven side bearing, non-transmision end bearing, temperature sensor and temperature alarming device is all arranged near gear case driven gear bearing, main drive gear bearing, wherein temperature sensor is connected with temperature controller, temperature controls it and is connected with temperature alarming device, and then monitor the state of corresponding bearing, avoid expanding because bearing problem causes accident to be upgraded.
Further, this guideway vehicle monitoring device also comprises train monitoring center, acceleration controller and temperature controller are all connected with train monitoring center, train monitoring center is for controlling speed and the braking operation of guideway vehicle, when train monitoring center is according to acceleration/accel and the concrete numerical value of temperature, automatically carry out reduction of speed, stopping or continuing the adjustment of driving instruction, wherein train supervision center has the program of establishment in advance, ensure train safe, reduce the danger causing guideway vehicle to travel because of human element, reduce the labour intensity of staff.
In this specification sheets, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a guideway vehicle monitoring device, comprise truck frame (21), it is characterized in that, also comprise acceleration pick-up (10), acceleration/accel warning piece, acceleration processor (11), described acceleration/accel warning piece is all connected with described acceleration processor (11) with described acceleration pick-up (10), and the two ends of described truck frame (21) are equipped with acceleration pick-up (10).
2. guideway vehicle monitoring device according to claim 1, it is characterized in that, the acceleration/accel telltale also comprising train main frame (7), train extension set (9) and be arranged on described train main frame (7) and described train extension set (9), described acceleration/accel telltale is connected with described acceleration processor (11).
3. guideway vehicle monitoring device according to claim 2, it is characterized in that, the bearing temperature alarm parts also comprising Temperature processor (13), be arranged on the shaft temperature sensor (12) on described truck frame (21) and be connected with described Temperature processor (13), described Temperature processor (13) is connected with described shaft temperature sensor (12).
4. guideway vehicle monitoring device according to claim 3, it is characterized in that, also comprise the ring temperature sensor (14) being arranged on described truck frame (21) side, described Temperature processor (13) is connected with described ring temperature sensor (14).
5. guideway vehicle monitoring device according to claim 4, it is characterized in that, also comprise the temperature indicator be arranged on described train main frame (7) and described train extension set (9), described temperature indicator is connected with described Temperature processor (13).
6. guideway vehicle monitoring device according to claim 1, it is characterized in that, also comprise brake head (1), clamp (3), wheel and be set in described clamp (3) and go up and the insulation wear-resistant sleeve (2) be connected with described brake head (1) and described clamp (3).
7. guideway vehicle monitoring device according to claim 6, is characterized in that, described insulation wear-resistant sleeve (2) is nylon jacket.
8. the guideway vehicle monitoring device according to any one of claim 1-7, it is characterized in that, also comprise the journal box body (4) swept stone implement (5) and be arranged on described truck frame (21), described in sweep stone implement (5) and be arranged on described journal box body (4).
9. guideway vehicle monitoring device according to claim 8, is characterized in that, described in sweep stone implement (5) and described journal box body (4) and removably connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410712772.8A CN104442913A (en) | 2014-12-01 | 2014-12-01 | Railway vehicle monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410712772.8A CN104442913A (en) | 2014-12-01 | 2014-12-01 | Railway vehicle monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104442913A true CN104442913A (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410712772.8A Pending CN104442913A (en) | 2014-12-01 | 2014-12-01 | Railway vehicle monitoring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104442913A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108545097A (en) * | 2018-06-15 | 2018-09-18 | 中车唐山机车车辆有限公司 | Shaking monitoring method, system and the device of rail vehicle |
| CN108981626A (en) * | 2018-06-29 | 2018-12-11 | 东莞市诺丽电子科技有限公司 | A kind of auxiliary wheel landing monitoring system and monitoring method |
| CN109229128A (en) * | 2018-09-12 | 2019-01-18 | 中车南京浦镇车辆有限公司 | A kind of bogie and railcar |
| CN109693679A (en) * | 2017-10-24 | 2019-04-30 | 株洲中车时代电气股份有限公司 | A kind of monitoring system of train operation quality |
| CN110271576A (en) * | 2019-07-11 | 2019-09-24 | 株洲时代新材料科技股份有限公司 | Torsion bar arrangement and vehicle and hoisting method used for rail vehicle with locking function |
| US10814731B2 (en) * | 2016-03-30 | 2020-10-27 | Crrc Qingdao Sifang Co., Ltd. | System and method for suppressing the serpentine instability of railway vehicle |
| CN113412213A (en) * | 2019-04-05 | 2021-09-17 | 舍弗勒技术股份两合公司 | Wheel set bearing for a rail vehicle and method for operating a sensor system |
| CN113525450A (en) * | 2021-09-16 | 2021-10-22 | 江苏晟鸿智能科技有限公司 | Railway track external defect detection device |
| CN113624492A (en) * | 2021-08-04 | 2021-11-09 | 宝鸡中车时代工程机械有限公司 | Monitoring method and system for running transmission part of rail engineering vehicle |
| WO2023060693A1 (en) * | 2021-10-11 | 2023-04-20 | 中车长春轨道客车股份有限公司 | Magnetic levitation vehicle and brake clamp thereof |
| CN118032002A (en) * | 2024-04-10 | 2024-05-14 | 中铁二十局集团有限公司 | Railway tunnel engineering car distance and speed measuring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10814731B2 (en) * | 2016-03-30 | 2020-10-27 | Crrc Qingdao Sifang Co., Ltd. | System and method for suppressing the serpentine instability of railway vehicle |
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| CN108545097A (en) * | 2018-06-15 | 2018-09-18 | 中车唐山机车车辆有限公司 | Shaking monitoring method, system and the device of rail vehicle |
| CN108981626A (en) * | 2018-06-29 | 2018-12-11 | 东莞市诺丽电子科技有限公司 | A kind of auxiliary wheel landing monitoring system and monitoring method |
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| CN113412213A (en) * | 2019-04-05 | 2021-09-17 | 舍弗勒技术股份两合公司 | Wheel set bearing for a rail vehicle and method for operating a sensor system |
| CN110271576A (en) * | 2019-07-11 | 2019-09-24 | 株洲时代新材料科技股份有限公司 | Torsion bar arrangement and vehicle and hoisting method used for rail vehicle with locking function |
| CN113624492A (en) * | 2021-08-04 | 2021-11-09 | 宝鸡中车时代工程机械有限公司 | Monitoring method and system for running transmission part of rail engineering vehicle |
| CN113525450A (en) * | 2021-09-16 | 2021-10-22 | 江苏晟鸿智能科技有限公司 | Railway track external defect detection device |
| WO2023060693A1 (en) * | 2021-10-11 | 2023-04-20 | 中车长春轨道客车股份有限公司 | Magnetic levitation vehicle and brake clamp thereof |
| CN118032002A (en) * | 2024-04-10 | 2024-05-14 | 中铁二十局集团有限公司 | Railway tunnel engineering car distance and speed measuring device |
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Application publication date: 20150325 |