GB1401630A - Winch drive - Google Patents

Winch drive

Info

Publication number
GB1401630A
GB1401630A GB5604171A GB5604171A GB1401630A GB 1401630 A GB1401630 A GB 1401630A GB 5604171 A GB5604171 A GB 5604171A GB 5604171 A GB5604171 A GB 5604171A GB 1401630 A GB1401630 A GB 1401630A
Authority
GB
United Kingdom
Prior art keywords
brake
control valve
winch
planet carrier
free fall
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
GB5604171A
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.)
Hamworthy Engineering Ltd
Original Assignee
Hamworthy Engineering 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 Hamworthy Engineering Ltd filed Critical Hamworthy Engineering Ltd
Priority to GB5604171A priority Critical patent/GB1401630A/en
Priority to DE19722258876 priority patent/DE2258876A1/en
Publication of GB1401630A publication Critical patent/GB1401630A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/14—Power transmissions between power sources and drums or barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/24—Operating devices
    • B66D5/26—Operating devices pneumatic or hydraulic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00—Capstans, winches or hoists
    • B66D2700/01—Winches, capstans or pivots
    • B66D2700/0125—Motor operated winches
    • B66D2700/0158—Hydraulically controlled couplings or gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00—Capstans, winches or hoists
    • B66D2700/03—Mechanisms with latches or braking devices in general for capstans, hoists or similar devices as well as braking devices actuated electrically or by fluid under pressure
    • B66D2700/035—Fluid operated braking devices
    • 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
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/3023—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure
    • F16H63/3026—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure comprising friction clutches or brakes
    • F16H2063/3033—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure comprising friction clutches or brakes the brake is actuated by springs and released by a fluid pressure
    • 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
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/4157—Control of braking, e.g. preventing pump over-speeding when motor acts as a pump

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)
  • Braking Arrangements (AREA)

Abstract

1401630 Winch drive HAMWORTHY ENG Ltd 4 Dec 1972 [2 Dec 1971 30 March 1972] 56041/71 and 15005/72 Heading B8B [Also in Division F2] Driving means for a winch barrel 1 comprises epicyclic gearing having a sun gear 7 on a driving shaft 4, a ring gear 10 secured to the barrel 1 and planet pinions 8 journalled in a planet carrier 9 which is splined to a shaft 11 which may be braked by a brake located in a housing 12. The brake is normally held by springs and is adapted to be released by hydraulie means to permit free fall of the load. Alternatively, the drive input may be by way of the planet carrier, and the sun gear may constitute the braked member. An hydraulic fluid circuit for releasing the brake comprises a supply pump 3, a flow regulating and pressure release unit 4, a manually operable control valve 5 and an actuator 2 to which hydraulic pressure is applied in order to release the brake. The degree of closure of the control valve 5 adjusts the speed of free fall by varying the pressure at the brake actuator 2. A metering pump 7 is coupled to the planet carrier and this produces a negative feedback which maintains the winch speed substantially constant at a value depending on the setting of the control valve 5. For emergency free fall, a manually operable selector valve 8 is provided.
GB5604171A 1971-12-02 1971-12-02 Winch drive Expired GB1401630A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB5604171A GB1401630A (en) 1971-12-02 1971-12-02 Winch drive
DE19722258876 DE2258876A1 (en) 1971-12-02 1972-12-01 WINCH DRIVE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5604171A GB1401630A (en) 1971-12-02 1971-12-02 Winch drive
GB1500572 1972-03-30

Publications (1)

Publication Number Publication Date
GB1401630A true GB1401630A (en) 1975-07-16

Family

ID=26250946

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5604171A Expired GB1401630A (en) 1971-12-02 1971-12-02 Winch drive

Country Status (2)

Country Link
DE (1) DE2258876A1 (en)
GB (1) GB1401630A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2452036A1 (en) * 1979-03-23 1980-10-17 Reliance Electric Co DEMULTIPLIER WITH ADJUSTABLE STARTING SPEED
GB2170466A (en) * 1985-02-06 1986-08-06 Partek Ab Wire reel for interchangeable-platform equipment
EP0538662A2 (en) * 1991-10-21 1993-04-28 FÜRSTLICH HOHENZOLLERNSCHE WERKE LAUCHERTHAL GMBH & CO. Freefall winch
GB2349865A (en) * 1999-05-13 2000-11-15 Bode & Son Ltd F Arresting assembly

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2452036A1 (en) * 1979-03-23 1980-10-17 Reliance Electric Co DEMULTIPLIER WITH ADJUSTABLE STARTING SPEED
GB2170466A (en) * 1985-02-06 1986-08-06 Partek Ab Wire reel for interchangeable-platform equipment
EP0538662A2 (en) * 1991-10-21 1993-04-28 FÜRSTLICH HOHENZOLLERNSCHE WERKE LAUCHERTHAL GMBH & CO. Freefall winch
EP0538662A3 (en) * 1991-10-21 1994-08-03 Fuerstlich Hohenzollernsche We
GB2349865A (en) * 1999-05-13 2000-11-15 Bode & Son Ltd F Arresting assembly

Also Published As

Publication number Publication date
DE2258876A1 (en) 1973-06-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee