GB399845A - Improvements in and relating to the balancing of rotating members - Google Patents
Improvements in and relating to the balancing of rotating membersInfo
- Publication number
- GB399845A GB399845A GB1068/32A GB106832A GB399845A GB 399845 A GB399845 A GB 399845A GB 1068/32 A GB1068/32 A GB 1068/32A GB 106832 A GB106832 A GB 106832A GB 399845 A GB399845 A GB 399845A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltmeter
- way
- condenser
- transformer
- plates
- 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
- 229910000679 solder Inorganic materials 0.000 abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 238000006073 displacement reaction Methods 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 238000010291 electrical method Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/32—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/32—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels
- F16F15/322—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels the rotating body being a shaft
-
- 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
-
- 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
- G01M1/30—Compensating imbalance
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S29/00—Metal working
- Y10S29/901—Balancing method
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Testing Of Balance (AREA)
Abstract
399,845. Phase-difference measurements. TAYLOR, M. K. and FERRANTI, Ltd., Hollinwood, Lancashire. Jan. 13, 1932, No. 1068. [Class 37.] Electrical methods are used to measure the characteristics of the vibrations due to out-ofbalance forces in apparatus for testing the balance of rotors. The flyer 1, Fig. 1, is mounted on air bearings 2, 2 in resilient supports 3, 3. Helices 4, 4 of say solder are applied one at each end of the flyer. Each bearing is connected by rods 5, 5 to electric generators 6, 6 of such type that the voltage rises when the displacement of the..bearings increases and these voltages are measured in a voltmeter V. A high resistance potentiometer p may be inserted in the circuit to safeguard the voltmeter. An air turbine 7 drives the flyer, and a tool similar to a lathe tool is used to remove some of the lower spiral 4. If the speed exceeds the critical the solder in being removed from the right place and the increase of speed is rapid and may be heard in the head phones H. Cutting is continued until the voltmeter reads zero when only a hum is heard in the head phones. The switch s is now moved over and the top spiral 4 treated similarly. In a second form, shown in Fig. 2, for balancing small motors, the armature shaft 11 of the motor 10 is fitted at each end with a spiral 12 either on the shaft or as shown on added metal discs 13, 13. A condenser plate 14 capable of being slowly rotated by hand is placed near a key way 15. The table 17 is mounted on two springs 18, 18 having insulated metal plates 19, 19 mounted on a rigid insulated base 20. Vibrations transmitted to the table vary the capacity of the two condensers formed, by the table and insulated plates. These condensers are connected one at a time with a switch s to a thermionic amplifier formed by a circuit including valves 21, 22. The condensers charged by a battery 23 cause varying potentials to be developed across the resistances 24, 25 which are fed to the grids of the valves. Both outputs are now passed through transformers 26, 27 the secondary of the latter being connected in series with the control grid of a tetrode, pentrode or other suitable valve by way of a grid leak and condenser 28 and to the cathode of the valve by way of the screen biassing battery 29. The secondary of transformer 26 is connected in series with the screen grid and by way of battery 29 to the cathode. A suitable voltmeter 30 is placed across the secondary of the transformer 26. In the anode circuit is a milliammeter 31 which indicates any out of balance with respect to the position of condenser plate 14, the voltmeter 30 indicating the degree. In action, as the locating condenser 14 is slowly rotated, an angle is formed at which a maximum anode current flows giving the angle of out-of-balance and indicates the radial displacement on the disc at which it is necessary to remove solder. The tool is applied at this radius. The other end is now treated in the same manner until the. voltmeter reads zero. The first end is now treated again. It may be quicker to use a trial and error method by cutting and bringing the voltage from each end successively down to zero. Electromagnetic devices may be used instead of electrostatic using magnetic generators such as moving iron or moving coil loudspeaker movements or carbon or other microphones. For the phase locator a small condenser used as described is best or a locating cam may be put in the shaft operating a suitable generator to give the required reference point, or a rotating carbon contact may be used. In addition to the above methods of indicating phase relationship, an oscillographic system may be employed, preferably a cathode ray tube in which are four of the time base (on one pair of plates or coils) is synchronized with the rotation frequency by means of the neondiode time base described in the " Proceedings of the Physical Society," Vol. 43, pages 502- 511, 1931, and the oscillations from the vibration and impulse detectors are mixed and applied to the other pair of plates or coils so that the position of the impulse with respect to the vibration may be quickly viewed on the oscillograph screen. In a modification, the vibration potentials are transmitted by way of a transformer to the screen grid of a pentode valve while the kill potentials are transmitted by way of a second transformer to the control grid of the same valve. The output is measured by a milliammeter. Specification 18260/04, [Class 110, Rotary engines &c.], is referred to.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1068/32A GB399845A (en) | 1932-01-13 | 1932-01-13 | Improvements in and relating to the balancing of rotating members |
US657915A US2012780A (en) | 1932-01-13 | 1933-02-21 | Balancing of rotating members |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1068/32A GB399845A (en) | 1932-01-13 | 1932-01-13 | Improvements in and relating to the balancing of rotating members |
Publications (1)
Publication Number | Publication Date |
---|---|
GB399845A true GB399845A (en) | 1933-10-13 |
Family
ID=9715614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1068/32A Expired GB399845A (en) | 1932-01-13 | 1932-01-13 | Improvements in and relating to the balancing of rotating members |
Country Status (2)
Country | Link |
---|---|
US (1) | US2012780A (en) |
GB (1) | GB399845A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2426305A (en) * | 1942-03-12 | 1947-08-26 | Gen Motors Corp | Balancing machine |
US2449563A (en) * | 1943-05-04 | 1948-09-21 | Gyro Balance Corp | Balancing machine |
US2534268A (en) * | 1946-05-31 | 1950-12-19 | Kahn | Washing machine cylinder balancing apparatus |
US2665581A (en) * | 1944-01-13 | 1954-01-12 | Clare H Kean | Dynamic displacement meter |
US3102429A (en) * | 1963-09-03 | Network | ||
CN107956840A (en) * | 2017-12-26 | 2018-04-24 | 中国工程物理研究院总体工程研究所 | Electromagnetic type automatic balance head |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2534267A (en) * | 1945-10-03 | 1950-12-19 | Leo M Kahn | Washing machine cylinder balancing apparatus |
US2478663A (en) * | 1946-03-29 | 1949-08-09 | Albert V Masket | Projectile testing machine |
DE2900663C2 (en) * | 1979-01-10 | 1982-12-16 | FAG Kugelfischer Georg Schäfer & Co, 8720 Schweinfurt | Process for the manufacture and testing of rolling elements |
US5025662A (en) * | 1983-06-10 | 1991-06-25 | Hultberg Richard M | Automotive wheel balancing apparatus and method |
CN106813011B (en) * | 2017-03-24 | 2018-10-23 | 中国人民解放军理工大学 | Modularization pipeline vibration control apparatus |
CN110886811A (en) * | 2019-12-03 | 2020-03-17 | 青岛良研信息科技有限公司 | Portable water quality detector for cultivation |
-
1932
- 1932-01-13 GB GB1068/32A patent/GB399845A/en not_active Expired
-
1933
- 1933-02-21 US US657915A patent/US2012780A/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3102429A (en) * | 1963-09-03 | Network | ||
US2426305A (en) * | 1942-03-12 | 1947-08-26 | Gen Motors Corp | Balancing machine |
US2449563A (en) * | 1943-05-04 | 1948-09-21 | Gyro Balance Corp | Balancing machine |
US2665581A (en) * | 1944-01-13 | 1954-01-12 | Clare H Kean | Dynamic displacement meter |
US2534268A (en) * | 1946-05-31 | 1950-12-19 | Kahn | Washing machine cylinder balancing apparatus |
CN107956840A (en) * | 2017-12-26 | 2018-04-24 | 中国工程物理研究院总体工程研究所 | Electromagnetic type automatic balance head |
Also Published As
Publication number | Publication date |
---|---|
US2012780A (en) | 1935-08-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB399845A (en) | Improvements in and relating to the balancing of rotating members | |
US2193079A (en) | Method of and apparatus for measuring torsional movements | |
US2284476A (en) | Voltmeter apparatus | |
US2636381A (en) | Apparatus for analyzing unbalance of rotors | |
US2394411A (en) | Dynamic balancing machine | |
US2130122A (en) | Balancing machine | |
US1762725A (en) | Method of and means for indicating synchronism | |
US2303424A (en) | Spindle unbalance detector | |
US2796600A (en) | Spindle unbalance alarm | |
US3122020A (en) | Method and machine for balancing rotors | |
US2050073A (en) | Apparatus for dynamically balancing rotatable bodies | |
Olney | Resistance commutation | |
GB642916A (en) | An improved apparatus for testing the balance of rotating bodies | |
US2038787A (en) | Earth inductor compass | |
US2678558A (en) | Balancing machine with electrical indicating device | |
US2345936A (en) | Telemetering receiver | |
US3037403A (en) | Control device for unbalance-correcting machining of rotating workpieces | |
US2502628A (en) | Permeameter | |
US3213689A (en) | Method and apparatus for balancing rotors | |
US2966801A (en) | Device for central control of a wattmetric balancing system | |
US2204425A (en) | Vibration indicator | |
US2558091A (en) | Method and means for detecting discharges on high-voltage windings | |
US2165992A (en) | Dynamic balancing of rotating bodies | |
US1612329A (en) | Indicating device for small balancing machines | |
Kaneff | A high-frequency simulator for the analysis of power systems |