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IT1240582B - Railway axle with integrated rotation speed detector - Google Patents

Railway axle with integrated rotation speed detector

Info

Publication number
IT1240582B
IT1240582B IT67942A IT6794290A IT1240582B IT 1240582 B IT1240582 B IT 1240582B IT 67942 A IT67942 A IT 67942A IT 6794290 A IT6794290 A IT 6794290A IT 1240582 B IT1240582 B IT 1240582B
Authority
IT
Italy
Prior art keywords
axle
sealing assembly
seat
transit
fitted
Prior art date
Application number
IT67942A
Other languages
Italian (it)
Other versions
IT9067942A0 (en
IT9067942A1 (en
Inventor
Roberto Moretti
Dario Bertorelli
Matteo Genero
Original Assignee
Skf Ind Spa
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Skf Ind Spa filed Critical Skf Ind Spa
Priority to IT67942A priority Critical patent/IT1240582B/en
Publication of IT9067942A0 publication Critical patent/IT9067942A0/en
Priority to GB9125042A priority patent/GB2251076B/en
Priority to DE4138867A priority patent/DE4138867C2/en
Priority to FR9114708A priority patent/FR2669598B1/en
Priority to US07/889,263 priority patent/US5289120A/en
Publication of IT9067942A1 publication Critical patent/IT9067942A1/en
Application granted granted Critical
Publication of IT1240582B publication Critical patent/IT1240582B/en

Links

Landscapes

  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

A description is given of a railway axle of the type in which an antifriction bearing is mounted in a seat defined between two elements, one of which turns relative to another and is fitted, towards the outside of the seat, with a sealing assembly suitable for protecting respective rolling bodies of the bearing; an annular element of the sealing assembly is angularly constrained integral with the rotating element of the axle and is fitted with a plurality of permanently magnetised zones with substantially the same width and arranged circumferentially and spaced from one another with an essentially constant pitch; inside the seat and in the vicinity of said annular element of the sealing assembly there is also a sensor borne by the fixed element of the axle and such as to be activated by the transit in front of it by the ability of said magnetised zones to generate a periodic signal with a frequency proportional to the number of apertures which transit in front of the sensor in the time unit. <IMAGE>
IT67942A 1990-11-28 1990-11-28 Railway axle with integrated rotation speed detector IT1240582B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IT67942A IT1240582B (en) 1990-11-28 1990-11-28 Railway axle with integrated rotation speed detector
GB9125042A GB2251076B (en) 1990-11-28 1991-11-26 A railway axle with an integrated detector for detecting the speed of rotation
DE4138867A DE4138867C2 (en) 1990-11-28 1991-11-26 The railcar axle
FR9114708A FR2669598B1 (en) 1990-11-28 1991-11-28 RAILWAY AXLE WITH INTEGRATED DETECTOR FOR DETECTING ROTATION SPEED.
US07/889,263 US5289120A (en) 1990-11-28 1992-05-28 Railway axle bearing and sealing assembly with integrated rotational speed detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67942A IT1240582B (en) 1990-11-28 1990-11-28 Railway axle with integrated rotation speed detector

Publications (3)

Publication Number Publication Date
IT9067942A0 IT9067942A0 (en) 1990-11-28
IT9067942A1 IT9067942A1 (en) 1992-05-29
IT1240582B true IT1240582B (en) 1993-12-17

Family

ID=11306569

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67942A IT1240582B (en) 1990-11-28 1990-11-28 Railway axle with integrated rotation speed detector

Country Status (1)

Country Link
IT (1) IT1240582B (en)

Also Published As

Publication number Publication date
IT9067942A0 (en) 1990-11-28
IT9067942A1 (en) 1992-05-29

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971125