GB1305003A - - Google Patents
Info
- Publication number
- GB1305003A GB1305003A GB1029971A GB1029971A GB1305003A GB 1305003 A GB1305003 A GB 1305003A GB 1029971 A GB1029971 A GB 1029971A GB 1029971 A GB1029971 A GB 1029971A GB 1305003 A GB1305003 A GB 1305003A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rails
- wheel
- test circuit
- flat
- axle
- 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.)
- Expired
Links
Classifications
-
- 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
- B61K9/12—Measuring or surveying wheel-rims
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/28—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures
- G01B7/282—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures for measuring roundness
Abstract
1305003 Track apparatus TELEFONAKTIEBOLAGET L M ERICSSON 20 April 1971 [22 April 1970] 10299/71 Heading B7N [Also in Division G1] To detect a flat 18 (Fig. 1) on the rim of a wheel 13 of a rail vehicle, the two wheels 12, 13 on one axle 14 are used to close a test circuit which includes part of the rails 10, 11, which circuit is broken by the flat section 18 as the wheels rotate, for a period indicative of the length of the flat section. The connecting points 21, 22 to the rails 10, 11 are longitudinally offset by not more than the distance between consecutive axles. The voltage source 19 may be D.C., when the rail sections containing connecting points 21, 22 are insulated from the rest of the rails, or A.C., when the test circuit is made resonant at the test frequency to limit the effects of parallel paths through other wheel pairs. In one A.C. embodiment (Fig. 2A), the test circuit including wheels and axle b, c fed via transformer 33 is normally in series resonance at the supply frequency, whereby the voltage picked up at impedance 34 is sufficient to trigger unit 37 except when a wheel flat is present. The duration of the break in the output of unit 37 is compared with the time interval between the operation of fixed switches SK1, SK2, to determine the length of the flat and to operate an alarm 39 if it exceeds a preset value. In an alternative arrangement the current in the test circuit is sensed by coils linked to the rails 10, 11 or to the wheel axle b, c, which automatically eliminate the effects of rail currents produced by other wheel pairs. In another embodiment (Fig. 5A), short auxiliary rails 40, 41 are mounted adjacent the main rails 10, 11 and each wheel of a pair 43, 44 completes a separate test circuit in which a flat section produces an open circuit.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE554770A SE332837B (en) | 1970-04-22 | 1970-04-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1305003A true GB1305003A (en) | 1973-01-31 |
Family
ID=20266709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1029971A Expired GB1305003A (en) | 1970-04-22 | 1971-04-20 |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS5744924B1 (en) |
CA (1) | CA953403A (en) |
DD (1) | DD88958A5 (en) |
FI (1) | FI56799C (en) |
FR (1) | FR2089992A5 (en) |
GB (1) | GB1305003A (en) |
NL (1) | NL7105375A (en) |
PL (1) | PL83286B1 (en) |
SE (1) | SE332837B (en) |
SU (1) | SU420195A3 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1839990A2 (en) * | 2006-03-31 | 2007-10-03 | Bernd Neuroth | Assembly for checking the wheels of rail vehicles |
CN100575164C (en) * | 2006-07-17 | 2009-12-30 | 简水生 | The track circuit system of double track insulated conductors adhered to inside and method of inspection thereof |
CN107757246A (en) * | 2017-11-16 | 2018-03-06 | 长沙开元仪器股份有限公司 | A kind of rail vehicle and its Split type track wheel of vehicle |
CN113532256A (en) * | 2021-06-28 | 2021-10-22 | 中车青岛四方机车车辆股份有限公司 | Automatic track space detection device and detection method |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59187241A (en) * | 1983-04-07 | 1984-10-24 | Shinko Electric Co Ltd | Detecting device of flat of wheel |
JPH01111125U (en) * | 1988-01-19 | 1989-07-26 | ||
DE102008046907A1 (en) | 2008-09-11 | 2010-03-18 | Deutsche Bahn Ag | Measurement results detection and transmission device for wheel set of rail-vehicle, has stator electronic circuit comprising receiver connected with universal serial bus, which is coupled with data detection and analysis unit |
-
1970
- 1970-04-22 SE SE554770A patent/SE332837B/xx unknown
-
1971
- 1971-04-20 CA CA110,828A patent/CA953403A/en not_active Expired
- 1971-04-20 PL PL14765071A patent/PL83286B1/pl unknown
- 1971-04-20 GB GB1029971A patent/GB1305003A/en not_active Expired
- 1971-04-21 FI FI111671A patent/FI56799C/en active
- 1971-04-21 FR FR7114166A patent/FR2089992A5/fr not_active Expired
- 1971-04-21 NL NL7105375A patent/NL7105375A/xx unknown
- 1971-04-22 JP JP2641271A patent/JPS5744924B1/ja active Pending
- 1971-04-22 SU SU1651932A patent/SU420195A3/ru active
- 1971-04-22 DD DD15460871A patent/DD88958A5/en unknown
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1839990A2 (en) * | 2006-03-31 | 2007-10-03 | Bernd Neuroth | Assembly for checking the wheels of rail vehicles |
EP1839990A3 (en) * | 2006-03-31 | 2008-11-05 | Bernd Neuroth | Assembly for checking the wheels of rail vehicles |
CN100575164C (en) * | 2006-07-17 | 2009-12-30 | 简水生 | The track circuit system of double track insulated conductors adhered to inside and method of inspection thereof |
CN107757246A (en) * | 2017-11-16 | 2018-03-06 | 长沙开元仪器股份有限公司 | A kind of rail vehicle and its Split type track wheel of vehicle |
CN107757246B (en) * | 2017-11-16 | 2023-08-18 | 长沙开元仪器有限公司 | Railway vehicle and split type railway vehicle wheel thereof |
CN113532256A (en) * | 2021-06-28 | 2021-10-22 | 中车青岛四方机车车辆股份有限公司 | Automatic track space detection device and detection method |
Also Published As
Publication number | Publication date |
---|---|
SU420195A3 (en) | 1974-03-15 |
DE2119146B2 (en) | 1975-10-30 |
JPS5744924B1 (en) | 1982-09-24 |
NL7105375A (en) | 1971-10-26 |
FR2089992A5 (en) | 1972-01-07 |
CA953403A (en) | 1974-08-20 |
DD88958A5 (en) | 1972-04-05 |
SE332837B (en) | 1971-02-22 |
DE2119146A1 (en) | 1971-11-04 |
FI56799B (en) | 1979-12-31 |
FI56799C (en) | 1980-04-10 |
PL83286B1 (en) | 1975-12-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE20 | Patent expired after termination of 20 years |