GB968558A - Dynamically actuated balancing means - Google Patents
Dynamically actuated balancing meansInfo
- Publication number
- GB968558A GB968558A GB14054/62A GB1405462A GB968558A GB 968558 A GB968558 A GB 968558A GB 14054/62 A GB14054/62 A GB 14054/62A GB 1405462 A GB1405462 A GB 1405462A GB 968558 A GB968558 A GB 968558A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rod
- balancing
- wheel
- parts
- spindle
- 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
- 230000000452 restraining effect Effects 0.000 abstract 5
- 230000020347 spindle assembly Effects 0.000 abstract 4
- 239000012530 fluid Substances 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
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
- G01M1/30—Compensating imbalance
- G01M1/36—Compensating imbalance by adjusting position of masses built-in the body to be tested
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
- B24B41/042—Balancing mechanisms
-
- 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
- G01M1/02—Details of balancing machines or devices
- G01M1/04—Adaptation of bearing support assemblies for receiving the body to be tested
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
968,558. Dynamic balancing apparatus. NORTON CO. March 29, 1963 [April 11, 1962], No. 14054/62. Heading G1X. [Also in Division B3] Dynamically actuated balancing apparatus comprises a rotatably mounted spindle assembly 23 arranged to support a rotatable member, such as a grinding wheel 36, and having releasable restraining means for maintaining the member concentric with the spindle assembly, balancing means 175 immobilised when the rotatable member is constrained by the restraining means and operable to balance the member mounted on the spindle assembly when the restraining means is released, and an actuating means 29 selectively operable between first and second positions in which the member is constrained and released, respectively, by the restraining means, the actuating means having a resilient supporting means 101 to yieldably support the member when the restraining means is released. As applied to a grinding machine, the spindle assembly 23 is mounted in bearings 21, 22 in openings 17, 18 of a head 31, movable on guideways 11, 12. The assembly is axially reciprocated by a mechanism 41 and has two parts 24, 25, part 25 supporting the grinding wheel and being movable relative to the part 24 from a first position in which tapered surfaces 26, 27 of the parts retain the part 25 concentric with the part 24 to a second position in which the surfaces are separated for the balancing operation. The movement of part 25 relative to part 24 is effected by actuating means 29 comprising a hydraulic piston 107 which slides in a cylinder 111 and is connected to one end of a rod 101 forming the resilient supporting means, the other end of the rod having a tapered portion 156 which is retained in engagement with the part 25 by a nut 173. The said other end also rotatably supports three balancing weights 175 which, in the normal position of the spindle parts, have pointed screws 176, 176<1>, 176<11> engaging notches in a locking ring 181 restrained from movement relative to the part 24 by flexible cables 193. In the normal position of the parts, the tapered surfaces 26, 27 of the parts 24, 25 engage each other and a cylindrical surfaces 151 of the rod 101 is received within a surface 153 in the member 24. When it is desired to balance the grinding wheel at the end of a grinding cycle, an electro-hydraulic circuit is operated to supply hydraulic fluid to a chamber 118 of the cylinder 111 to move the piston 107 and rod 101 to the left and disengage the surface 26 from surface 27 and surface 151 of rod 101 from the surface 153 so that the wheel 36 is free to oscillate under the restraint of the yieldable rod 101. At the same time, the points of the screws 176, 176<1>, 176<11> are disengaged'from the notched disc so that the weights 175 can move to positions balancing the wheel as described in U.S.A. Specification 1,967,163. Thereafter,the hydraulic supply to the cylinder 111 is reversed to retract the rod 101 so that the screws engage the notched disc 181, the surface 151 of the rod engages the surface 153, and finally the surface 27 on part 25 engages surface 26 on part 24 to accurately locate the spindle parts. The spindle is rotated by a drive comprising pulleys 32, 33 and belts 34 and the rod 101 is rotatable in the piston 107 of the hydraulic actuator 29, the cylinder of which is prevented from rotating by an arm 131 engaging a forked member 133 on the head 31. In an alternative embodiment, the end of the rod 101 extending through the wheel 36 is supported in bearings in a sleeve which, during grinding, engages a cylindrical surface of a support but during balancing is moved by the rod from engagement with the surface to permit oscillation of the wheel on the resilient rod 101. U.S.A. Specifications 1,584,717 and 1,808,401 also are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US458023A US3410029A (en) | 1965-05-24 | 1965-05-24 | Stabilizing and supporting means for a rotating element |
Publications (1)
Publication Number | Publication Date |
---|---|
GB968558A true GB968558A (en) | 1964-09-02 |
Family
ID=23819049
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14054/62A Expired GB968558A (en) | 1965-05-24 | 1962-04-11 | Dynamically actuated balancing means |
GB19396/66A Expired GB1114619A (en) | 1965-05-24 | 1966-05-03 | Stabilizing and supporting means for a rotating element such as a grinding wheel |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19396/66A Expired GB1114619A (en) | 1965-05-24 | 1966-05-03 | Stabilizing and supporting means for a rotating element such as a grinding wheel |
Country Status (2)
Country | Link |
---|---|
US (1) | US3410029A (en) |
GB (2) | GB968558A (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9267512B2 (en) | 2011-10-24 | 2016-02-23 | Hamilton Sundstrand Corporation | Ram air fan diffuser with perforated side walls |
US8961127B2 (en) | 2011-10-24 | 2015-02-24 | Hamilton Sundstrand Corporation | Shaft cap |
US9028220B2 (en) | 2011-10-24 | 2015-05-12 | Hamilton Sundstrand Corporation | Tie rod |
US9140272B2 (en) | 2011-10-24 | 2015-09-22 | Hamilton Sundstrand Corporation | Ram air fan outer housing |
US9188136B2 (en) | 2011-10-24 | 2015-11-17 | Hamilton Sundstrand Corporation | Fan rotor with cooling holes |
US8882454B2 (en) | 2011-10-24 | 2014-11-11 | Hamilton Sundstrand Corporation | Ram air fan bearing housing |
US9057386B2 (en) | 2011-10-24 | 2015-06-16 | Hamilton Sundstrand Corporation | Ram air fan inner housing |
US8887486B2 (en) | 2011-10-24 | 2014-11-18 | Hamilton Sundstrand Corporation | Ram air fan inlet housing |
US9228593B2 (en) | 2012-08-15 | 2016-01-05 | Hamilton Sundstrand Corporation | Ram air fan outer housing |
US9556885B2 (en) | 2012-08-23 | 2017-01-31 | Hamilton Sundstrand Corporation | Inlet shroud assembly |
US10982682B2 (en) | 2018-03-16 | 2021-04-20 | Hamilton Sundstrand Corporation | Fan rotor for ram air fan |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1876524A (en) * | 1932-09-06 | Dynamic balancing machine | ||
US1162125A (en) * | 1914-12-17 | 1915-11-30 | Pliny E Bassett | Device for overcoming vibration of spindles. |
US1184003A (en) * | 1915-11-27 | 1916-05-23 | David L Miller | Spindle-carrier. |
US1343954A (en) * | 1917-07-20 | 1920-06-22 | Vibration Specialty Company | Method of and apparatus for testing for dynamic balances |
US1411127A (en) * | 1921-03-28 | 1922-03-28 | John B Stephens | Car-axle bearing |
US2008161A (en) * | 1930-02-10 | 1935-07-16 | Gen Motors Corp | Balancing machine for propeller shafts |
US1967163A (en) * | 1933-05-26 | 1934-07-17 | Gen Electric | Means for dynamically balancing machine tools |
US2142021A (en) * | 1937-09-03 | 1938-12-27 | Cincinnati Grinders Inc | Automatic dynamic balancer for machine tools |
US2751262A (en) * | 1952-01-25 | 1956-06-19 | Schenck Gmbh Carl | Resilient bearing support for balancing machines |
US2915918A (en) * | 1955-06-28 | 1959-12-08 | Norton Co | Automatic balancing mechanism for rotating elements |
US2909014A (en) * | 1958-01-16 | 1959-10-20 | Schumag Schumacher Metallwerke | Tool-spindle journal, particularly in centerless grinding machines |
US3027553A (en) * | 1959-12-14 | 1962-03-27 | Kennedy Van Saun Mfg & Eng | Overload responsive thrust mechanisms |
US3218884A (en) * | 1961-12-13 | 1965-11-23 | Norton Co | Dynamically actuated balancing means |
US3222001A (en) * | 1963-10-01 | 1965-12-07 | Bausch & Lomb | Rotor assembly |
-
1962
- 1962-04-11 GB GB14054/62A patent/GB968558A/en not_active Expired
-
1965
- 1965-05-24 US US458023A patent/US3410029A/en not_active Expired - Lifetime
-
1966
- 1966-05-03 GB GB19396/66A patent/GB1114619A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3410029A (en) | 1968-11-12 |
GB1114619A (en) | 1968-05-22 |
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