GB929039A - Improvements in and relating to releasable locking devices - Google Patents

Improvements in and relating to releasable locking devices

Info

Publication number
GB929039A
GB929039A GB3043959A GB3043959A GB929039A GB 929039 A GB929039 A GB 929039A GB 3043959 A GB3043959 A GB 3043959A GB 3043959 A GB3043959 A GB 3043959A GB 929039 A GB929039 A GB 929039A
Authority
GB
United Kingdom
Prior art keywords
stud
sleeve
balls
plunger
disc
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
GB3043959A
Inventor
Eugene Briggs Gray
Chester Charles Depew
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.)
Aerpat AG
Original Assignee
Aerpat AG
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 Aerpat AG filed Critical Aerpat AG
Priority to GB3043959A priority Critical patent/GB929039A/en
Publication of GB929039A publication Critical patent/GB929039A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
    • F04D29/322—Blade mountings
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
    • F16B21/165—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with balls or rollers

Abstract

929,039. Cotters. AERPAT A.G. Sept. 7, 1959, No. 30439/69. Class 89 (2). [Also in Group XXVI] The invention relates to a releasable stud which may be used for securing turbine or compressor rotor blades or spacer elements on to a rotor disc, the stud having a sleeve mounted thereon which may be secured relatively to the stud by means of balls engaged in radial holes in the stud which are pressed outwardly so as to enter a shallow annular groove formed in the inner surface of the sleeve, the balls being held in their radially outer positions by means of a spring-loaded plunger engaged in an axial bore in the stud, the plunger having two annular recesses of different depth, the balls engaging in the shallower recess when in their outer positions and in the deeper recess when in their inner positions within the periphery of the stud whereby the sleeve may be moved axially of the stud for assembly or disassembly. The compressor rotor shown comprises two discs 10, 11, the disc 10 carrying spacer elements 14, and the disc 11 carrying blades 45, The spacer elements 14 have lugs 16 which are received in grooves 20 formed at the periphery of the rotor disc 10, the parts being secured together by studs 24. Similarly the blades are formed with lugs 47 which are received in grooves 49 at the periphery of the rotor disc 11, the parts being secured together by studs 53. The stud 24 is shown in Fig. 3 and is formed at one end with a head 25 and at the other with an axial bore 30 in which is disposed a spring-loaded plunger 37, the mouth of the bore being peened over at 42 to prevent disengagement of the plunger. The plunger, which is shown in its two positions in the Figure, comprises a shoulder 40 against which the spring 41 acts, a deep annular recess 43, a frusto-conical surface 44 and a shallow annular recess 39. The stud is formed with radial bores 31 in which are disposed balls 32, the mouths of the bores being peened over at 33 to prevent disengagement of the balls. A sleeve member 34 is engaged on the stud and is formed with an annular groove 35. When the plunger 37 is in its outer position, the balls 32 engage in the shallow recess 39 and are in their outer positions in which they engage in the annular groove 35 in the sleeve 34 which is thereby locked relative to the stud. When the plunger is moved inwardly against the pressure of the spring, the balls engage in the deeper recess 43 whereby the sleeve may be moved axially of the stud. The stud 50 securing the rotor blades to the disc 11 is similar except that the sleeve 51 is formed with a head 52 and the sleeve extends over the full length of the stud 53 to abut against the head 54 thereof.
GB3043959A 1959-09-07 1959-09-07 Improvements in and relating to releasable locking devices Expired GB929039A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3043959A GB929039A (en) 1959-09-07 1959-09-07 Improvements in and relating to releasable locking devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3043959A GB929039A (en) 1959-09-07 1959-09-07 Improvements in and relating to releasable locking devices

Publications (1)

Publication Number Publication Date
GB929039A true GB929039A (en) 1963-06-19

Family

ID=10307705

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3043959A Expired GB929039A (en) 1959-09-07 1959-09-07 Improvements in and relating to releasable locking devices

Country Status (1)

Country Link
GB (1) GB929039A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2484530A1 (en) * 1979-12-21 1981-12-18 Maschf Augsburg Nuernberg Ag BLOCKING AGAINST THE AXIAL SHIFTING OF THE PINS IN THE BOREHOLE OF THE SPACERS FOR FASTENING MOBILE FINS WITH A BREAK OF AXIAL STEAM TURBINES
EP2538141A3 (en) * 2011-06-23 2013-12-04 United Technologies Corporation Methods for joining metallic and CMC members

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2484530A1 (en) * 1979-12-21 1981-12-18 Maschf Augsburg Nuernberg Ag BLOCKING AGAINST THE AXIAL SHIFTING OF THE PINS IN THE BOREHOLE OF THE SPACERS FOR FASTENING MOBILE FINS WITH A BREAK OF AXIAL STEAM TURBINES
EP2538141A3 (en) * 2011-06-23 2013-12-04 United Technologies Corporation Methods for joining metallic and CMC members
US8739547B2 (en) 2011-06-23 2014-06-03 United Technologies Corporation Gas turbine engine joint having a metallic member, a CMC member, and a ceramic key

Similar Documents

Publication Publication Date Title
GB1092411A (en) Piston and cylinder assembly
GB1266633A (en)
GB572859A (en) Mounting the blades of axial-flow, rotary compressors or turbines
GB655880A (en) Improvements in and relating to high speed rotors
GB1310331A (en) Self-centering clutch release bearing assembly
GB1232527A (en)
GB1467566A (en) Rotary mechanism bearing arrangements
GB1510138A (en) Coupling for transmitting torque
GB1433409A (en) Clutches
GB1106340A (en) Packing assemblies for extremely high pressure pumps
GB929039A (en) Improvements in and relating to releasable locking devices
US2584227A (en) Bearing
GB1392958A (en) Adjustable connections
GB1229390A (en)
GB1221761A (en) Improvements in and relating to dry friction clutches
GB938282A (en) Improvements relating to synchronous clutches
GB8527942D0 (en) Stripper rings
US2288164A (en) Shaft seal
GB555374A (en) Improvements in or relating to quick action coupling or engaging devices or appliances
GB622869A (en) Improvements in internal combustion and other high-speed, high-temperature turbines
GB1436800A (en) Detachable fasteners
GB520351A (en) Improvements in or relating to constructions incorporating a scraper ring
GB1409592A (en) Securing means for securing a rotor on a shaft
GB770659A (en) Improvements in or relating to annular stops for locating members assembled one within another
GB1157427A (en) An Improved Synchronizing Clutch