GB1479815A - Detecting wear in bearings supporting a rotary shaft - Google Patents

Detecting wear in bearings supporting a rotary shaft

Info

Publication number
GB1479815A
GB1479815A GB3453075A GB3453075A GB1479815A GB 1479815 A GB1479815 A GB 1479815A GB 3453075 A GB3453075 A GB 3453075A GB 3453075 A GB3453075 A GB 3453075A GB 1479815 A GB1479815 A GB 1479815A
Authority
GB
United Kingdom
Prior art keywords
bore
pipe
bearings
sensing portion
shaft
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
Application number
GB3453075A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nikkiso Co Ltd
Original Assignee
Nikkiso Co Ltd
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 Nikkiso Co Ltd filed Critical Nikkiso Co Ltd
Priority to GB3453075A priority Critical patent/GB1479815A/en
Publication of GB1479815A publication Critical patent/GB1479815A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
    • F16C17/24—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
    • G01B5/146—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures measuring play on bearings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

1479815 Bearings NIKKISO CO Ltd 20 Aug 1975 34530/75 Heading F2A [Also in Division G1] A shaft 10 (Fig. 2) rotatably mounted by bearings in a housing 24 is provided at one end with an axially extending bore 12 to receive a bearing wear detecting device 14; the bore 12 has a large portion 25 (Fig. 3) of greater crosssectional area spaced from the end of the shaft by a small portion 22 of reduced cross-sectional area, a first shoulder 25a being defined between the two portions and the axial extent of the large portion being limited by a second shoulder 25b, and the detecting device includes a hermetically sealed pipe 16 containing a fluid and having at one end an enlarged sensing portion 18 which may be axially passed through the small portion 22 of the bore, the arrangement being such that excessive radial and/or thrust wear of the bearings causes the internal surfaces of the bore 12 to wear and rupture the sensing portion 18, thereby causing a pressure change within the pipe which shows up on an indicator 26. The axially extending bore may be provided in a nut threadedly received on the shaft. The cross-sectional shape of the bore and/ or the sensing portion of the pipe may be elliptical, rectangular, or polygonal. In a further embodiment (Fig. 12), the detecting device comprises an indicating part 28 provided at its rear with the indicator 26, and a detecting part 30 provided at its front with the sensing portion 18, each part having integrally formed therewith a joining pipe 32, 34, the joining pipes being telescopically and hermetically engaged when in use, the arrangement being such that when the parts are slidably moved together the pressure therein is increased.
GB3453075A 1975-08-20 1975-08-20 Detecting wear in bearings supporting a rotary shaft Expired GB1479815A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3453075A GB1479815A (en) 1975-08-20 1975-08-20 Detecting wear in bearings supporting a rotary shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3453075A GB1479815A (en) 1975-08-20 1975-08-20 Detecting wear in bearings supporting a rotary shaft

Publications (1)

Publication Number Publication Date
GB1479815A true GB1479815A (en) 1977-07-13

Family

ID=10366784

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3453075A Expired GB1479815A (en) 1975-08-20 1975-08-20 Detecting wear in bearings supporting a rotary shaft

Country Status (1)

Country Link
GB (1) GB1479815A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0576815A1 (en) * 1992-07-01 1994-01-05 DaimlerChrysler Aerospace Airbus Gesellschaft mit beschränkter Haftung Shear bolt coupling
CN114322717A (en) * 2021-12-30 2022-04-12 国网浙江杭州市萧山区供电有限公司 Gear profile detection equipment for gear box

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0576815A1 (en) * 1992-07-01 1994-01-05 DaimlerChrysler Aerospace Airbus Gesellschaft mit beschränkter Haftung Shear bolt coupling
CN114322717A (en) * 2021-12-30 2022-04-12 国网浙江杭州市萧山区供电有限公司 Gear profile detection equipment for gear box
CN114322717B (en) * 2021-12-30 2024-01-16 国网浙江杭州市萧山区供电有限公司 Tooth form detection equipment of gear box gear

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19950819