GB715627A - Improvements in or connected with apparatus for testing the balance of rotating bodies - Google Patents

Improvements in or connected with apparatus for testing the balance of rotating bodies

Info

Publication number
GB715627A
GB715627A GB2203651A GB2203651A GB715627A GB 715627 A GB715627 A GB 715627A GB 2203651 A GB2203651 A GB 2203651A GB 2203651 A GB2203651 A GB 2203651A GB 715627 A GB715627 A GB 715627A
Authority
GB
United Kingdom
Prior art keywords
coils
unbalance
wattmeter
plane
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
GB2203651A
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.)
Avery Weigh Tronix Ltd
Original Assignee
W&T Avery 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 W&T Avery Ltd filed Critical W&T Avery Ltd
Priority to GB2203651A priority Critical patent/GB715627A/en
Publication of GB715627A publication Critical patent/GB715627A/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

Landscapes

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

Abstract

715,627. Electric balancing systems. AVERY, Ltd., W. & T. (Schenck Maschinenfabrik Ges., C.). Sept. 19, 1952 [Sept. 20, 1951], No. 22036/51. Class 40 (1). The balance testing arrangement described in Specification 642,916 is modified in that the two pick-offs are directly connected to respective coils of a dual wattmeter, the combined torque produced by these coils being opposed by the combined torque produced by a further pair of coils fed through potentiometers from either phase of the two phase generator driven synchronously with the shaft under test, the potentiometers being adjusted as in Specification 642,916 so that out-of-balance measurements made in respect of one preselected " correcting " plane are independent of any out-of-balance in the second " correcting " plane. As shown, the outputs of the pick-offs 6, 6a, associated with the respective bearings 2, 2a of the test shaft 1, feed, directly, the aiding coils 7, 7a, of a wattmeter 9. The wattmeter coils 8, 8a, which oppose the coils 7, 7a are adapted by means of reversing switches 10, 11, 13, 13a to be fed from either phase of the two phase generator 5 driven with the shaft 1, the currents in the two coils 8, 8a being adjustable, relatively, by potentiometers 12, 12a. To set the apparatus, a dynamically balanced standard shaft is used with an unbalance mass placed at one end, e.g. the right hand end thereof in the preselected "correction plane." With the switches positioned as shown, the potentiometer 12 is adjusted until zero reading is obtained on the wattmeter; this adjustment precludes an unbalance in the right hand "correction plane " affecting a reading of an unbalance in the left hand "correction plane." The potentiometer 12a is similarly adjusted to preclude unbalance in the left hand "correction plane affecting unbalance readings in the right hand "correction plane," by replacing the unbalance mass at the left hand end of the standard shaft and moving switches 10, 11 to their other positions. Unbalance measurements may now be effected as described in Specification 642,916.
GB2203651A 1951-09-20 1951-09-20 Improvements in or connected with apparatus for testing the balance of rotating bodies Expired GB715627A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2203651A GB715627A (en) 1951-09-20 1951-09-20 Improvements in or connected with apparatus for testing the balance of rotating bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2203651A GB715627A (en) 1951-09-20 1951-09-20 Improvements in or connected with apparatus for testing the balance of rotating bodies

Publications (1)

Publication Number Publication Date
GB715627A true GB715627A (en) 1954-09-15

Family

ID=10172858

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2203651A Expired GB715627A (en) 1951-09-20 1951-09-20 Improvements in or connected with apparatus for testing the balance of rotating bodies

Country Status (1)

Country Link
GB (1) GB715627A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3033041A (en) * 1962-05-08 Rbikar

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3033041A (en) * 1962-05-08 Rbikar

Similar Documents

Publication Publication Date Title
US2461645A (en) Balancing machine
US1639444A (en) Balancing machine
GB715627A (en) Improvements in or connected with apparatus for testing the balance of rotating bodies
GB530418A (en) Improvements in fatigue testing machines
US2805576A (en) Electrical balancing machine
GB1233097A (en)
US3805623A (en) Balancing apparatus for measurement of want of balance
GB642916A (en) An improved apparatus for testing the balance of rotating bodies
GB895338A (en) Balancing machine
US2720781A (en) Rotor balancing device
US2962899A (en) Balancing machine with electromechanical dynamometers
US2277190A (en) Wheel-balancing machine
GB751688A (en) Device for dynamic balancing machines
GB595906A (en) Improvements in apparatus for testing want of balance in rotating masses
GB686205A (en) An improved means of dynamically balancing rotors
ES406100A1 (en) Installation for balances of vehicle wheels. (Machine-translation by Google Translate, not legally binding)
GB530503A (en) Means for determining and indicating the magnitude of the compensation weight of balancing machines
GB901529A (en) Improvements relating to dynamic balancing machines
GB754602A (en) Improvements relating to dynamic balancing machines
GB775803A (en) Method and device for the dynamic balancing of movably mounted bodies
GB919355A (en)
GB650739A (en) Improvements in plotting apparatus for stereophotogrammetric surveys
GB560956A (en) A new or improved apparatus for testing the balance of rotating bodies
GB392263A (en) A new or improved machine for testing the balance of rotary bodies
GB171986A (en) Improvements in and connected with apparatus for testing the position of the center of gravity of rapidly rotating parts of machinery