WO1999023026A1 - Drive assembly - Google Patents
Drive assembly Download PDFInfo
- Publication number
- WO1999023026A1 WO1999023026A1 PCT/GB1997/003018 GB9703018W WO9923026A1 WO 1999023026 A1 WO1999023026 A1 WO 1999023026A1 GB 9703018 W GB9703018 W GB 9703018W WO 9923026 A1 WO9923026 A1 WO 9923026A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- assembly
- cable
- pulleys
- pulley
- wheel
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/39—Arrangements of sonic watch equipment, e.g. low-frequency, sonar
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H51/00—Forwarding filamentary material
- B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
- B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
- B65H51/08—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements
- B65H51/10—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements with opposed coacting surfaces, e.g. providing nips
- B65H51/105—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements with opposed coacting surfaces, e.g. providing nips one of which is an endless belt
-
- 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
- B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
- B66D1/74—Capstans
- B66D1/7415—Friction drives, e.g. pulleys, having a cable winding angle of less than 360 degrees
Definitions
- This invention relates to a drive assembly.
- the assembly may be utilised to drive a flexible elongate member such as cable or the like.
- Another aspect of the invention may be utilised to drive a pulley or a ground engaging wheel of an aircraft.
- the invention also relates to a method of driving a flexible elongate member such as a cable or wheel .
- the deployment, or veering, of cable from a winch drum is often achieved by applying a tension to the cable to draw it from the drum.
- this veering may be achieved by means of the load present on the cable, for example, in a towed sonar array as might be deployed from a submarine or ship, the array is deployed from a winding drum mounted on the vessel by means of the drag on the array created by the surrounding water.
- the drag may not be sufficient to veer the cable from the winding drum and to pull the cable over the various pulley wheels that are provided between the drum and the point where the cable passes from the vessel.
- Such initial tension may be provided by a cable drive assembly beyond the last pulley wheel on the vessel, as will be described below.
- the winch drum When hauling in or recovering a cable or sonar array the winch drum is rotated in the opposite direction.
- the drag experienced by the sonar array which may be several hundred metres long, places a significant load on the array and thus a significant load on the winch drum. This load may be sufficient to crush and damage the coils of cable already present on the drum, and may make spooling of the cable onto the drum difficult.
- a cable drive assembly as mentioned above may be utilised to haul in or recover the cable and reduce the tension in the cable as it is wound onto the drum: the drive assembly hauls in a portion of the recovery load and the winch drum hauls in the remainder of the recovery load.
- the cable drive assembly may be a pair of driven rollers to form a nip beyond the last pulley wheel on the vessel. However, the point loads created by such a nip may damage the cable.
- pairs of opposed driven belts are utilised to apply tension to the cable.
- the belts are maintained in contact with the cable by pivotally mounted longitudinally extending low friction supports. The supports are biassed inwardly towards one another by springs.
- the cables, and in particular towed sonar arrays may be "lumpy", that is the cables are not of a constant diameter, and the larger diameter portions are not accommodated easily by the supports; when the supports are pushed apart to allow the larger diameter portions to pass, the smaller diameter sections of cable will not be gripped by the belts and the larger diameter portions will experience significant point loads and may be subject to damage or accelerated wear.
- UK Patent 1 368 157 discloses an arrangement in which a rope passes around a driven pulley and is clamped thereto by a series of clamping jaws mounted on an untensioned endless chain.
- the jaws positively engage notches on the driven pulley to ensure that the jaws follow the rope without any relative slipping.
- the jaws are urged into contact with the rope by spring-biassed pressure rollers.
- a drive assembly for a flexible elongate member comprising: a support defining a convex arcuate support surface for engaging a flexible elongate member; a tensioned flexible drive member opposing the convex support surface and defining a support portion for engaging the flexible elongate member; first and second supports for the drive member, the supports being located on a chord of a curve whereby the drive member defines a concave arcuate support portion and tension in the drive member tends to bias the member to bear against the flexible elongate member.
- the invention also relates to a method of applying a linear force to a flexible elongate member such as a cable or the like.
- a flexible elongate member such as a cable or the like.
- the manner in which the drive member is urged into contact with the flexible elongate member that is by locating the drive member supports on a chord of a curve such that the tensioned drive member defines a concave arcuate support portion, with the tension in the drive member tending to bias the member to bear against the flexible elongate member, facilitates handling of "lumpy" cables and the like; there is no requirement to provide support surfaces or rollers behind the drive member, and larger diameter portions of the cable are readily accommodated by flexing of the drive member.
- the arrangement allows a linear force to be applied to a cable and the like without applying any significant radial or point loads thereto, as the force is applied to the cable over the length of the support portion.
- the assembly may be utilised to deploy or veer cable from a winch drum and to wind or haul cable onto a drum.
- the assembly may be provided directly on a winch drum, or may be provided separately of the drum.
- the invention has particular application in the deployment and retrieval of towed sonar arrays, in which the cable may be damaged if subject to high radial compressive forces.
- the assembly When deploying the array, the assembly may provide an initial tension to veer the cable from the winch drum. Then, once the drag on the array is sufficient to pull the cable from the drum, the assembly may run free.
- the assembly may provide drag on the cable to reduce the tension in the cable between the assembly first pulley and the winch drum. Further, the assembly may be utilised to haul the cable and retrieve the sonar array, allowing the cable to be wound onto the drum under minimal tension.
- the drive member supports comprise one or more pulleys.
- at least one of the pulleys is driven.
- at least one of the pulleys is mounted via biassing means to impart an initial tension in the flexible member.
- the drive member is in the form of a belt, which may be toothed.
- the support defining the convex arcuate support surface may be a pulley, preferably a relatively large diameter pulley.
- the convex support surface may be provided by a segment or arc of the pulley, preferably an arc of less than 270°, most preferably an arc of less than 180°, and in one preferred embodiment a 90° arc.
- the convex arcuate support surface may be provided by a belt passing around appropriate idler pulleys and supported at said surface by a low friction surface or multiple rollers.
- the support surface may be defined by a low friction surface or multiple rollers.
- an assembly for driving a wheel comprising: a body; at least three pulleys mounted on the body; a flexible member extending around the pulleys; and means for driving the flexible member, two of the pulleys being locatable on a chord of a wheel to be driven such that tension in the flexible member tends to bias the member to bear on a portion of the circumference of a wheel located between said two of the pulleys.
- the invention also relates to a method of driving a wheel .
- the assembly may be provided in conjunction with a relatively large pulley wheel for providing drive for the pulley.
- the assembly may be utilised for driving a ground engaging wheel of a vehicle or aircraft to, for example, manoeuvre an aircraft on the deck of a ship.
- the said two of the pulleys are locatable relative to the wheel such that the flexible member extends around over half of the circumference of the wheel .
- this provides a greater degree of friction between the flexible member and the wheel and also facilitates securing the assembly on the wheel.
- at least one of said two pulleys is movably mounted to facilitate mounting and dismounting of the assembly from the wheel.
- one of the pulleys is driven and imparts a tension on the flexible member.
- one of the pulleys is mounted on the body via biassing means to impart an initial tension in the flexible member.
- the flexible member is in the form of a belt, which may be toothed.
- Figure 1 is a somewhat schematic plan view of a submarine including a towed sonar array deployment system including a drive assembly for a pulley in accordance with a preferred embodiment of the present invention
- Figure 2 is a plan view of a drive assembly of the deployment system of Figure 1;
- Figure 3 is a sectional view on line 3-3 of Figure 2 ;
- FIGS. 4 and 6 are schematic plan views of drive assemblies in accordance with further embodiments of the present invention.
- FIG 7 is a somewhat schematic side view of a drive assembly in accordance with another embodiment of the present invention (on same sheet as Figure 3) .
- FIG. 1 of the drawings illustrates a submarine 10 provided with a towed sonar array deployment system 12 incorporating a drive or pulley assembly 22 in accordance with a preferred embodiment of the present invention.
- the system 12 is utilised to deploy a towed sonar array from a winch drum 18 located within the casing of the submarine 10. From the drum 18, the cable 20 which connects the array to the submarine is passed around two pulley assemblies 14, 22 which ensure that the cable 20 clears the propeller of the submarine 16.
- Figures 2 and 3 of the drawings illustrate the pulley assembly 22 in greater detail.
- the assembly comprises a casing 24 which accommodates a first relatively large pulley wheel 26 with an outer face 23 grooved to accommodate the cable 20 as it passes around the pulley 26.
- Mounted within the casing 24 are three smaller pulley wheels, 30, 32, 34 and a flexible belt 36 which extends therearound.
- Two of the pulleys 30, 34 are located on a chord of the larger pulley 26 such that tension in the belt 36 tends to bias the belt 36 to bear against the cable 20 as it passes around the first pulley 26.
- the pulleys 30, 34 are located adjacent the respective points on the circumference of the pulley 26 where the cable 20 engages the pulley 26.
- the larger pulley 26 defines a convex support surface extending over a 90° arc of the pulley outer face and the belt 36 defines an opposing concave arcuate support portion.
- One of the smaller pulleys 30 is mounted cn the casing via a loading cylinder 38 to impart an initial tension on the belt 36.
- Another of the small pulleys 34 is driven by a hydraulic motor 40 mounted to the casing 24 via a housing 42 to create further tension in the belt 36.
- the pulley assembly 22 may be used in the initial deployment of the sonar array when the level of drag on the array and cable 20 in the water beyond the pulley 22 is insufficient to pull the cable 20 from the winch drum 18.
- the motor 40 is utilised to drive the belt in the direction of the arrows A, the motor 40 also causing the pulley 34 to apply tension to the belt 36 which clamps the belt 36 against the cable 20 on the pulley 26.
- the cable 20 is thus pulled from the winch drum 18 in the direction of the arrows B.
- the assembly 22 may be permitted to run freely. However, as the drag on the array increases it may be desirable no limit the tension in the cable 20 being pulled from the winch drum 18, and which would otherwise crush and damage the cable 20 remaining on the winch drum 18. Thus, the assembly 22 may be utilised to apply a drag to the cable such that the tension in the cable 20a between the pulley assembly 22 and the winch drum 18 is considerably lower than the tension in the cable 20b beyond the pulley assembly 22.
- the assembly 22 may also be utilised to haul the cable 20 and retrieve the sonar array.
- the belt 36 is driven in the opposite direction the cable will be pulled in while the winch drum 18 is rotated to wind the cable 20 onto the drum 18.
- the tension in the portion of the cable 20a between the pulley assembly 22 and the winch drum 18 is considerably lower than the tension in the cable 20b beyond the assembly 22.
- tensioned belt 36 to drive the cable 20 allows larger diameter portions, or “lumps”, in the cable 20 to be readily accommodated as the gap or "nip" between the belt 36 and the pulley wheel 26 is maintained solely by the tension in the belt 36 (the smaller pulleys 30, 34 are spaced from the pulley 26) such that a lump in the cable will be accommodated by flexing of the belt 36.
- the pulley assembly 22 provides a simple and convenient means for veering or hauling the cable 20 and the use of the belt 36 to apply force to the cable 20 facilitates handling of irregular diameter portions in the cable 20.
- Figure 4 illustrates an assembly 50 having a drive arrangement somewhat similar to the drive arrangement of pulley assembly 22 described above, in that it comprises a drive belt 52 which passes around a driven pulley 54 and an idler pulley 56, and a spring loaded tensioning idler pulley 58.
- the opposing support surface for the cable 60 is provided by a further belt 62 passing over a PTFE coated low friction surface 64 and around a pair of idler pulleys 66, 68.
- the belt 62 defines a convex arcuate support surface 70 for the cable 60
- the drive belt 52 defines a concave arcuate support surface 72.
- FIG. 5 illustrates an alternative drive assembly 80, in which the low friction surface 70 of the Figure 4 embodiment has been replaced by multiple rollers 82 which support a belt 84 to form a convex arcuate support surface 86.
- Figure 6 illustrates a further drive assembly 90 in which the convex arcuace support surface is provided by a series of rollers 92.
- an assembly 150 may be utilised to drive wheels of, for example, an aircraft on the deck of a ship, as illustrated somewhat schematically in Figure 7 of the drawings.
- Such an assembly 150 includes a wheel-mounted body
- the assembly 150 can be wheeled, by an operator, to engage with, for example, the nose wheel of an aircraft 164 on the ground or the deck of a ship 166.
- the pulley 158 is then returned to a position adjacent the wheel 164 such that the belt 162 contacts a substantial portion of the circumference of the wheel 164.
- Activation of the motor to drive the pulley 152 will create a tension in the belt 162, clamping the belt 162 against the wheel and, as the assembly 150 is restrained from rotating around the wheel 164 by contact with the ground/deck 166, driving the belt 162 will result in the wheel 164 rotating and the aircraft moving across the ground/deck 166.
- this embodiment of the invention provides a simple and convenient arrangement for movement of aircraft over short distances .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Aviation & Aerospace Engineering (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9609181.4A GB9609181D0 (en) | 1996-05-02 | 1996-05-02 | Drive assembly |
GB9708675A GB2312660B (en) | 1996-05-02 | 1997-04-30 | Drive assembly |
GB0110807A GB2369667B (en) | 1997-11-03 | 1997-11-03 | Drive assembly |
AU48743/97A AU4874397A (en) | 1997-11-03 | 1997-11-03 | Drive assembly |
CA002336104A CA2336104C (en) | 1997-11-03 | 1997-11-03 | Drive assembly |
PCT/GB1997/003018 WO1999023026A1 (en) | 1996-05-02 | 1997-11-03 | Drive assembly |
US09/831,102 US6719275B1 (en) | 1997-11-03 | 1997-11-03 | Drive assembly |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9609181.4A GB9609181D0 (en) | 1996-05-02 | 1996-05-02 | Drive assembly |
GB9708675A GB2312660B (en) | 1996-05-02 | 1997-04-30 | Drive assembly |
PCT/GB1997/003018 WO1999023026A1 (en) | 1996-05-02 | 1997-11-03 | Drive assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999023026A1 true WO1999023026A1 (en) | 1999-05-14 |
Family
ID=27268267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1997/003018 WO1999023026A1 (en) | 1996-05-02 | 1997-11-03 | Drive assembly |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB2312660B (en) |
WO (1) | WO1999023026A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102249162A (en) * | 2011-06-22 | 2011-11-23 | 浙江大学 | Machine-mounted dipping sonar winch with multiple retractable means and control method thereof |
DE102011121008B4 (en) * | 2011-12-13 | 2015-05-28 | Atlas Elektronik Gmbh | Apparatus and method for receiving an acoustic towed antenna and watercraft with a device for receiving an acoustic towed antenna |
WO2015110255A1 (en) * | 2014-01-21 | 2015-07-30 | Thyssenkrupp Marine Systems Gmbh | Device and method for seismic measuring the sea floor using a submarine boat |
WO2019150112A1 (en) * | 2018-01-31 | 2019-08-08 | Generative Parametrics Limited | Filament drive apparatus |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6719275B1 (en) * | 1997-11-03 | 2004-04-13 | Mactaggart Scott (Holdings) Limited | Drive assembly |
GB0017628D0 (en) * | 2000-07-18 | 2000-09-06 | Hydrovision Ltd | Fairlead |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1394328A (en) * | 1920-06-01 | 1921-10-18 | Edwin S Miller | Vehicle-drive |
GB607558A (en) * | 1946-02-08 | 1948-09-01 | Arthur Cyril Thornton | Improvements in or relating to cycles, auto-cycles and the like |
US2875890A (en) * | 1957-06-10 | 1959-03-03 | Fred C Good & Sons Inc | Windlass |
US3005510A (en) * | 1959-03-09 | 1961-10-24 | Delbert L Phillips | Auxiliary drive unit for vehicles |
US4099429A (en) * | 1972-03-27 | 1978-07-11 | Service Equipment Design Co., Inc. | Pipe-spinning apparatus and method |
US4242709A (en) * | 1979-01-29 | 1980-12-30 | Stricker Klaus F | Strip media drive system |
EP0176463A1 (en) * | 1984-09-28 | 1986-04-02 | Hydromarine (Sarl) | Cable haulage apparatus |
EP0338932A1 (en) * | 1988-04-22 | 1989-10-25 | Guy Neyret | Traction drive for elongate material with an almost constant section |
US5009353A (en) * | 1990-02-01 | 1991-04-23 | Lake Shore, Inc. | Cable tensioning device |
US5150850A (en) * | 1991-05-10 | 1992-09-29 | Beloit Corporation | Method for winding a traveling web on a belted two drum wound web roll winder |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3329406A (en) * | 1965-07-12 | 1967-07-04 | Henry J Flair | Push-pull capstan type cable drive |
US3688857A (en) * | 1970-08-17 | 1972-09-05 | Michael J Miller | Self-mounting power unit for wheel chairs |
GB1368157A (en) * | 1972-01-18 | 1974-09-25 | Tractel Sa | Winches |
US3847378A (en) * | 1973-07-27 | 1974-11-12 | L Roemer | Power capstan for anchor rope and the like |
-
1997
- 1997-04-30 GB GB9708675A patent/GB2312660B/en not_active Expired - Lifetime
- 1997-11-03 WO PCT/GB1997/003018 patent/WO1999023026A1/en active Application Filing
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1394328A (en) * | 1920-06-01 | 1921-10-18 | Edwin S Miller | Vehicle-drive |
GB607558A (en) * | 1946-02-08 | 1948-09-01 | Arthur Cyril Thornton | Improvements in or relating to cycles, auto-cycles and the like |
US2875890A (en) * | 1957-06-10 | 1959-03-03 | Fred C Good & Sons Inc | Windlass |
US3005510A (en) * | 1959-03-09 | 1961-10-24 | Delbert L Phillips | Auxiliary drive unit for vehicles |
US4099429A (en) * | 1972-03-27 | 1978-07-11 | Service Equipment Design Co., Inc. | Pipe-spinning apparatus and method |
US4242709A (en) * | 1979-01-29 | 1980-12-30 | Stricker Klaus F | Strip media drive system |
EP0176463A1 (en) * | 1984-09-28 | 1986-04-02 | Hydromarine (Sarl) | Cable haulage apparatus |
EP0338932A1 (en) * | 1988-04-22 | 1989-10-25 | Guy Neyret | Traction drive for elongate material with an almost constant section |
US5009353A (en) * | 1990-02-01 | 1991-04-23 | Lake Shore, Inc. | Cable tensioning device |
US5150850A (en) * | 1991-05-10 | 1992-09-29 | Beloit Corporation | Method for winding a traveling web on a belted two drum wound web roll winder |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102249162A (en) * | 2011-06-22 | 2011-11-23 | 浙江大学 | Machine-mounted dipping sonar winch with multiple retractable means and control method thereof |
DE102011121008B4 (en) * | 2011-12-13 | 2015-05-28 | Atlas Elektronik Gmbh | Apparatus and method for receiving an acoustic towed antenna and watercraft with a device for receiving an acoustic towed antenna |
WO2015110255A1 (en) * | 2014-01-21 | 2015-07-30 | Thyssenkrupp Marine Systems Gmbh | Device and method for seismic measuring the sea floor using a submarine boat |
WO2019150112A1 (en) * | 2018-01-31 | 2019-08-08 | Generative Parametrics Limited | Filament drive apparatus |
US11267200B2 (en) | 2018-01-31 | 2022-03-08 | Generative Parametrics Limited | Filament drive apparatus |
Also Published As
Publication number | Publication date |
---|---|
GB9708675D0 (en) | 1997-06-18 |
GB2312660A (en) | 1997-11-05 |
GB2312660B (en) | 2000-09-06 |
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