EP0022802A1 - Dispositif pour la modification de l'angle d'incidence des pales d'une helice a pales orientables - Google Patents

Dispositif pour la modification de l'angle d'incidence des pales d'une helice a pales orientables

Info

Publication number
EP0022802A1
EP0022802A1 EP19800900098 EP80900098A EP0022802A1 EP 0022802 A1 EP0022802 A1 EP 0022802A1 EP 19800900098 EP19800900098 EP 19800900098 EP 80900098 A EP80900098 A EP 80900098A EP 0022802 A1 EP0022802 A1 EP 0022802A1
Authority
EP
European Patent Office
Prior art keywords
axis
piston
wing
cylinder
propeller
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.)
Withdrawn
Application number
EP19800900098
Other languages
German (de)
English (en)
Inventor
Roman GLÖTZER
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0022802A1 publication Critical patent/EP0022802A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H3/00—Propeller-blade pitch changing
    • B63H3/02—Propeller-blade pitch changing actuated by control element coaxial with propeller shaft, e.g. the control element being rotary

Definitions

  • the invention relates to a device for changing the angle of attack of the propeller blades of variable pitch propellers, each propeller blade being mounted on wing pins inside the propeller hub arranged on the end of a drive shaft and being rotatable by an adjusting mechanism which can be controlled by means of a pressure medium and which has an annular, in a cylinder and Piston sliding on an axis, and a drive member which transmits its movement to each wing pin.
  • Variable pitch propellers are used, for example, in shipbuilding not only for smaller ships, such as fishing vessels, but increasingly also for large ships and marine vehicles.
  • the angle of attack is changed by converting a linear movement into a rotary movement via a crank mechanism, with a bearing ring or flange of the wing pin serving as a crank disk, on which a single cder or two diametrically opposed crank pins are arranged, which are supported by crank arms or sliding guides one or two parts moving linearly coaxially to the drive shaft are coupled.
  • the understanding mechanism is operated via a pressure medium, the supply lines of which run in the hollow drive shaft.
  • the linearly moving part or parts are formed by one or two pistons, which are accommodated in the hub in the area of the wing pins or on the side facing away from the drive shaft (for example AT-PS 167.482).
  • AT-PS 167.482 shows a propeller hub with crank drive to the wing pegs, the crank plane being moved by two opposed pistons.
  • an annular piston is arranged in the middle below the propeller wing bearing.
  • the US-PS 2,355,039 shows an adjusting device with two annular pistons, both of which are arranged in the hub on the side facing the drive shaft, and move the propeller blades via crank arms.
  • the hydraulic control device for the piston movement is housed in the central hub area below the propeller blades.
  • US Pat. No. 2,931,443 shows a propeller hub in which a piston is arranged on both sides of the propeller blades, of which a crank arm is guided to each wing pin.
  • the Eaum existing below the wing pin ii ⁇ hub interior is required for the installation of the adjustment mechanism.
  • a disadvantage of the known devices is therefore that the central area of the hub can not be used for the storage or mounting of the wing pin, so that each propeller wing is only mounted. Therefore, it was also attempted to mount the wing pin ends in themselves from the hub wall into the interior extending support members in addition, what of space 'found results in an increase of the hub diameters.
  • the invention has now set itself the task of eliminating the above disadvantage and creating a device of the type mentioned, which on the one hand has an improved mounting of the wing pins and on the other hand also has a simple adjustment mechanism. State the nature of the invention
  • helical guides are formed between the piston and its axis and / or the inner wall of the pressure medium cylinder, which give a rotational movement when the piston moves axially, and in that the drive member on a part of the cylinder protruding from the cylinder Axis is arranged.
  • the adjustment mechanism is relocated from the central hub area according to the solution according to the invention, the axial movement of the piston being converted into a rotary movement of the piston axis, which is guided in the axis of the drive shaft in the bearing area of the wing pins.
  • the hub diameter can be kept small and the propeller blades can be assembled quickly and easily using just a few components.
  • the adjustment mechanism is, as in known designs, mostly on the rear, i.e. arranged on the side of the hub facing away from the drive shaft inside the hub when the
  • Control elements so the pressure medium lines are inserted into the hub from behind can also be provided in the side facing the drive shaft, which is particularly advantageous if a hollow drive shaft is used.
  • a gear transmission is provided for transmitting the rotational movement of the axis to the wing pegs, a gearwheel being fastened on the axis as a drive member, which gearwheel engages with gearwheels on each wing peg.
  • This type of transmission enables a dead center-free adjustment of the wing pivot and a very large adjustment angle.
  • powers. Bevel gears, helical spur gears, etc. can be used.
  • a high adjustment range is particularly desirable for marine vehicles in which the propeller blades can usually also be rotated to the feathering position.
  • An adjustment angle of 130 and more is achieved here. For normal ships, such as freight, fishing, recovery ships, etc., it can be found with a smaller adjustment angle.
  • At least one driver is provided as the drive member, helical guides being formed between each driver and the part of the axis protruding from the cylinder, which convert the rotational movement of the axis into an axial movement of the driver, and that for each wing pin in a crank arm is articulated between each driver and a crank disk of the wing pin.
  • two crank arms can engage on each wing pin if opposing helical guides are provided on the part of the axle protruding from the cylinder, one of which interacts with a first and the other with a second driver.
  • FIGS. 2 and 3 longitudinal sections through hubs with gearwheels or crank mechanisms of three-winged ship propellers.
  • Fig. 1 a section through the stern of a ship is shown.
  • the drive shaft is provided with an adjustable propeller 2, which is arranged between the stern 3 and the rudder blade holder 4.
  • the propeller hub 12 Connect to the propeller hub 12 the hub-sealing linings 10, 11 towards the rear 3 and the rudder blade holder 4.
  • the rudder blade 5 is inserted, which is rotatable via the drive shaft 6 from rowing machine room 14 by means of the rowing machine 7.
  • the actuating device 8 for the adjustment mechanism of the propeller blades 13 is also arranged, the control members 9 of which, in the exemplary embodiment supply lines for a pressure medium, are guided downwards and from the rear into the interior of the propeller hub 12 via the rudder blade holder 4.
  • FIG. 2 shows a longitudinal section through a first exemplary embodiment of a three-bladed variable-pitch propeller 2 modified due to the device according to the invention for adjusting the propeller blades 13.
  • the propeller hub 12 is plugged onto the drive shaft 1 and fastened by means of screw bolts 26.
  • Extending into the interior of the propeller hub 12 is a stub shaft 15 coaxial with the drive shaft 1 with bearing openings 19 for the wing journals 16 of the propeller blades 13 and with a bearing bore 25 for an axis 42 of the adjusting mechanism 27.
  • the wing pins 16 are mounted twice with one end 20 in the bearing bores 19 and with the other end 36 in the hub wall 37, a ring 49 being provided on the inside of the hub wall 37 as an additional solid support.
  • a bevel gear 40 is attached, which meshes with a pinion 41, which is also designed as a bevel gear, on the axis 42 of the adjusting mechanism 27.
  • the bevel gears 40, 41 have any suitable toothing, or other suitable gears can also be used.
  • the connection of the wing pin end 20 to the gear 40 is effected by means of split pins 23 or the like which can be inserted into recesses 22 of both parts.
  • the Propeller blades 13 attached by screws 17.
  • the wing pin 16 can also be formed in one piece with the propeller wing 13.
  • the adjusting mechanism 27 is arranged in a housing 38 which is fastened to the hub 12 by means of screws 30.
  • an annular piston 31 is slidably arranged on the axis 42 and moves within the cylinder 38.
  • helical guides 43, 44 can be formed on the inner wall of the cylinder 28 and / or on the axis 42, which consist of grooves and corresponding extensions which engage in them.
  • An axial movement of the piston 31 rotates the axis 42, the rotation of which is transmitted to the wing pin 16 via the gear mechanism.
  • the control members 9 designed as a double tube 50 open into two separate chambers 51, 52 of the rotating housing 38, from which the pressure medium flows into the cylinder 28 via connecting channels 53, 54 on both sides of the piston 31.
  • the control members 9, supplied for example via the rudder blade holder, and part of the adjustment mechanism 27 are covered and sealed from the water by a cover 11.
  • a driver 45 is fastened in the end region of the axis 42, which has radial webs 48 which can be displaced in guide grooves 47 of the inner wall of the groove, and from which crank arms 33 extend to crank pins (not shown) which are arranged on a crank disk 21.
  • the crank disks 21 of the wing pins 16 replace the toothed wheels 40 from FIG. 2.
  • Axis 42 are also formed between the axis 42 and the driver 45 helical guides 46, for example also grooves and projections engaging in them.
  • the construction of the prqpeller wing bearing corresponds to that of FIG. 2, as does the construction of the adjusting mechanism 27
  • the control members 9, lines for a pressure medium are introduced axially into the push rod 32, from which they open out on both sides of the piston 31 through passage openings 35 into the cylinder space.
  • a second driver at a distance from the first on the part of the axis 42 protruding from the cylinder 28.
  • helical guides are formed between the partial area of the axis 42 and the second driver, which are opposite to the helical guides 46, so that the rotation of the axis 42 changes the distance between the two drivers.
  • a crank arm 33 from both drivers then leads to each wing pin 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Pour modifier l'angle d'incidence des pales d'helice (13), le mecanisme de reglage (27) manoeuvrable par un fluide de pression presente un piston annulaire (31) qui se meut dans un cylindre (28) et sur un axe (42). Des guides helicoidaux (43, 44) sont prevus entre le piston (31) et son axe (42) et/ou la paroi interieure du cylindre de pression (28). Lors du mouvement axial du piston (31), ces guides donnent a l'axe (42) un mouvement tournant. Sur la partie de l'axe (42) qui sort du cylindre (28) un pignon d'engrenage est fixe transmettant le mouvement du piston (31) a chacun des tourillons (16) des pales. Chaque tourillon (16) est doublement fixe au moyen de la pale et son extremite (20) dans un troncon de l'arbre d'entrainement.
EP19800900098 1979-01-09 1980-07-14 Dispositif pour la modification de l'angle d'incidence des pales d'une helice a pales orientables Withdrawn EP0022802A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT152/79 1979-01-09
AT15279 1979-01-09

Publications (1)

Publication Number Publication Date
EP0022802A1 true EP0022802A1 (fr) 1981-01-28

Family

ID=3482910

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800900098 Withdrawn EP0022802A1 (fr) 1979-01-09 1980-07-14 Dispositif pour la modification de l'angle d'incidence des pales d'une helice a pales orientables

Country Status (2)

Country Link
EP (1) EP0022802A1 (fr)
WO (1) WO1980001373A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1211647B (it) * 1987-07-10 1989-11-03 Sintec Srl Struttura di supporto per timone, elica e linea d'asse per navi di qualsiasi tipo ed uso
IT1215868B (it) * 1988-02-15 1990-02-22 Bianchi Srl Vela. elica a passo variabile e regolabile durante la marcia, adatta per imbarcazioni a motore eper motori ausiliari di barche a
RU2461490C1 (ru) * 2011-02-25 2012-09-20 Открытое акционерное общество "Центр судоремонта "Звездочка" Система управления винтом регулируемого шага

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2971585A (en) * 1957-07-29 1961-02-14 United Aircraft Corp Sequencing and pressure peducing valve utilizing v-shaped orifice to effect pressure and gain regulation
US3092186A (en) * 1962-01-04 1963-06-04 James K Maclean Variable pitch propeller mechanism
DE1781004A1 (de) * 1968-08-07 1970-10-22 Ata Nutku Verstellpropeller
FR2214629B3 (fr) * 1973-01-22 1976-01-30 Remy Barrere Engrenage Fr
US3958897A (en) * 1974-09-16 1976-05-25 Connolly Daniel M Variable pitch propeller

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8001373A1 *

Also Published As

Publication number Publication date
WO1980001373A1 (fr) 1980-07-10

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19810206