GB1129477A - Improvements in and relating to rotary balancing apparatus - Google Patents

Improvements in and relating to rotary balancing apparatus

Info

Publication number
GB1129477A
GB1129477A GB4839364A GB4839364A GB1129477A GB 1129477 A GB1129477 A GB 1129477A GB 4839364 A GB4839364 A GB 4839364A GB 4839364 A GB4839364 A GB 4839364A GB 1129477 A GB1129477 A GB 1129477A
Authority
GB
United Kingdom
Prior art keywords
transducer
output
wheel
unbalance
signals
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
GB4839364A
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.)
HUBERT ROY TEBBOTH
Original Assignee
HUBERT ROY TEBBOTH
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 HUBERT ROY TEBBOTH filed Critical HUBERT ROY TEBBOTH
Priority to GB4839364A priority Critical patent/GB1129477A/en
Publication of GB1129477A publication Critical patent/GB1129477A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M1/00—Testing static or dynamic balance of machines or structures
    • G01M1/14—Determining imbalance
    • G01M1/16—Determining imbalance by oscillating or rotating the body to be tested
    • G01M1/22—Determining imbalance by oscillating or rotating the body to be tested and converting vibrations due to imbalance into electric variables
    • G01M1/225—Determining imbalance by oscillating or rotating the body to be tested and converting vibrations due to imbalance into electric variables for vehicle wheels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M1/00—Testing static or dynamic balance of machines or structures
    • G01M1/14—Determining imbalance
    • G01M1/16—Determining imbalance by oscillating or rotating the body to be tested
    • G01M1/28—Determining imbalance by oscillating or rotating the body to be tested with special adaptations for determining imbalance of the body in situ, e.g. of vehicle wheels

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Balance (AREA)

Abstract

1,129,477. Measuring rotary unbalance. H.R. TEBBOTH. Nov.29, 1965 [Nov.27, 1964], No.48393/64. Heading G1N. The angular position of an unbalanced mass on a vehicle wheel is determined by generating signals upon passage of a mark on the wheel past a fixed point and comparing the phases of these signals and signals from a vibration transducer. The wheel is resiliently suspended, for example in the vehicle suspension system, and is rotated at a speed at which vibrations due to the unbalance are in resonance with the suspension system. The output from the transducer is squared and differentiated and the resulting pulses are applied to one stage of a bi-stable multi-vibrator. Passage of an illuminated mark past a photo-cell, e.g. a photo-transistor, generates pulses which are applied to the second stage of the multi-vibrator. The average current through the latter stage is measured to indicate the phase difference between the pulse trains and a part of this current is also supplied through a resistor to a capacitor for storing the reading. The output from the transducer, or from a second transducer having common mechanical components with the first, is passed to an integrating amplifier the output of which is proportional to the vibration amplitude and inversely proportional to the square of the vibration frequency. This output is used to estimate the magnitude of the required balance weight. The wheel is rotated either by the vehicle engine or by a roller driven by an electric motor and is then allowed to run down until resonance is indicated by a maximum output from the integrating amplifier. The apparatus may be modified for measuring dynamic unbalance by providing a further transducer at right angles to the first or by repeating the testing procedure with the transducer in a different position.
GB4839364A 1964-11-27 1964-11-27 Improvements in and relating to rotary balancing apparatus Expired GB1129477A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4839364A GB1129477A (en) 1964-11-27 1964-11-27 Improvements in and relating to rotary balancing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4839364A GB1129477A (en) 1964-11-27 1964-11-27 Improvements in and relating to rotary balancing apparatus

Publications (1)

Publication Number Publication Date
GB1129477A true GB1129477A (en) 1968-10-09

Family

ID=10448454

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4839364A Expired GB1129477A (en) 1964-11-27 1964-11-27 Improvements in and relating to rotary balancing apparatus

Country Status (1)

Country Link
GB (1) GB1129477A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3686956A (en) * 1970-08-10 1972-08-29 Detroit Edison Co Structure for continuous monitoring of shaft vibration magnitude and phase angle
EP0007741A1 (en) * 1978-07-15 1980-02-06 GKN Transmissions Limited A method and device for balancing a vehicle wheel
WO1987005999A1 (en) * 1986-03-29 1987-10-08 Schenck Auto-Service-Geräte Gmbh Process and device for determining unbalance
WO1988008593A1 (en) * 1987-04-30 1988-11-03 Lehn F Heinrich Device for monitoring vibrations in motor vehicles during operation
US5058428A (en) * 1986-03-29 1991-10-22 Schenck Auto-Service-Gerate Gmbh Process for the determination of unbalance
CN102788663A (en) * 2011-05-17 2012-11-21 大连光洋科技工程有限公司 Horizontal rotator dynamic balance detection system without an additional sensor
CN102788662A (en) * 2011-05-17 2012-11-21 大连光洋科技工程有限公司 Vertical rotator dynamic balance detection system without additional sensor

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3686956A (en) * 1970-08-10 1972-08-29 Detroit Edison Co Structure for continuous monitoring of shaft vibration magnitude and phase angle
EP0007741A1 (en) * 1978-07-15 1980-02-06 GKN Transmissions Limited A method and device for balancing a vehicle wheel
WO1987005999A1 (en) * 1986-03-29 1987-10-08 Schenck Auto-Service-Geräte Gmbh Process and device for determining unbalance
US5058428A (en) * 1986-03-29 1991-10-22 Schenck Auto-Service-Gerate Gmbh Process for the determination of unbalance
WO1988008593A1 (en) * 1987-04-30 1988-11-03 Lehn F Heinrich Device for monitoring vibrations in motor vehicles during operation
CN102788663A (en) * 2011-05-17 2012-11-21 大连光洋科技工程有限公司 Horizontal rotator dynamic balance detection system without an additional sensor
CN102788662A (en) * 2011-05-17 2012-11-21 大连光洋科技工程有限公司 Vertical rotator dynamic balance detection system without additional sensor
CN102788663B (en) * 2011-05-17 2016-01-20 大连科德数控有限公司 Without the horizontal rotation body dynamic balance detection system of additional sensor
CN102788662B (en) * 2011-05-17 2016-04-06 科德数控股份有限公司 Without the vertical revolving-body dynamic-balancing detection system of additional sensor

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