EP4321470A1 - Schrapperwinde - Google Patents

Schrapperwinde Download PDF

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Publication number
EP4321470A1
EP4321470A1 EP23187218.5A EP23187218A EP4321470A1 EP 4321470 A1 EP4321470 A1 EP 4321470A1 EP 23187218 A EP23187218 A EP 23187218A EP 4321470 A1 EP4321470 A1 EP 4321470A1
Authority
EP
European Patent Office
Prior art keywords
winch
output shaft
fixedly mounted
drum
freewheel clutch
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.)
Pending
Application number
EP23187218.5A
Other languages
English (en)
French (fr)
Inventor
Jozef Duhovnik
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 EP4321470A1 publication Critical patent/EP4321470A1/de
Pending legal-status Critical Current

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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
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/12—Driving gear incorporating electric motors
    • 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
    • B66D1/26—Rope, cable, or chain winding mechanisms; Capstans having several drums or barrels

Definitions

  • the invention relates to a scraper winch for use in mines, open cast mines, construction or agriculture to scrape various materials, crushed stones or ore on the ground.
  • a scraper winch is known from prior art, which has a shaft that is driven by an electric motor via a reduction gear and on which two drums for rope winding are rotatably mounted.
  • Each of the drums is connected to planetary gears that mesh with a sun gear of the planetary drive which is fixedly coupled to the shaft.
  • the gear with internal teeth meshes with the planetary gears and has a brake fitted on the outside.
  • the gear with internal teeth rotates freely around the shaft. Actuation of the brake of either drum causes the rotary motion to be transmitted from the shaft to either drum, thereby achieving the winding of the rope on either drum.
  • the construction of the winch is very complex.
  • the brake may be either a band brake or a multiple-disc brake. The brake can be operated manually.
  • winch operator Manual operation is physically tiring, as the winch operator must exert force at all times to pull the rope in one direction or the other. In addition to an effective force of 40 to 80 N, the winch operator must also exert a force to overcome the brake mechanism clearance.
  • a further disadvantage of the winch is that the operator of the device must be near the winch, which does not allow him to have good control of the scraper as it slides over the material as it is moved towards the winch.
  • winches where the brake is not actuated manually, but by means of various controllable actuators or hydraulic devices. These winches therefore do not require physically strenuous work and allow a better view of the scraper, but the construction of such a winch is even more complex.
  • a plurality of mechanisms not only makes the winch more expensive, but also increases the number of breakdowns and consequent downtime.
  • a large number of components also has a negative impact on the winch dimensions. Understandably, in mining conditions, it is desirable to keep the winch dimensions as small as possible.
  • the electric motor is switched on in advance to keep it in steady drive.
  • the reduction gear and the planetary gears of both drums are idling and consuming energy during this time.
  • the winch becomes effective only after one or other of the brakes has been actuated.
  • WO 2017/216731 A1 discloses a winch having two drums rotatably mounted in the housing. Each drum has its own variable speed drive. The electric motors are fully or partially disposed within the drums. The winch may be controlled remotely, thus giving the operator a good overview of the scraper. A disadvantage of the winch is that it requires two separate drives and consequently more complex winch control.
  • the technical problem is how to provide a scraper winch that is of simple construction, single-drive, small in size, energy-efficient and easy to control.
  • An advantage of the winch according to the invention is that it has a small number of structural parts and only one drive. Control is easy. The winch is operated remotely, giving the operator a good overview of the scraper. A further advantage of the winch is that it uses energy only when the rope is actively being pulled (no idling).
  • the structure of the winch according to the invention provides for safe and reliable operation and prevents incorrect rope kinematics.
  • Figure 1 Schematic view of a scraper winch
  • a winch 1 for a scraper 11 comprising:
  • the control unit is adapted in a way to enable the electric motor 2 to be switched on for rotation in the first direction and the electric motor 2 to be switched on for rotation in the second direction which is opposite to the first direction.
  • the electric motor is switched on for rotation in the first direction, one drum rotates together with the output shaft, allowing the rope to be wound on the drum, while in this case the other drum rotates freely on the output shaft, allowing the rope to be unwound from the second drum.
  • the electric motor is switched on to rotate in the opposite direction, the situation is, of course, reversed.
  • the electric motor is switched on, the direction of movement of the scraper which can be connected to the two drums by means of a rope is therefore uniquely determined.
  • the control is simple and, thanks to the system's good responsiveness, extremely efficient.
  • both drums are free to rotate, allowing the rope to be unwound from both drums.
  • the invention also relates to the winch 1 further comprising:
  • the invention also relates to the winch 1 further comprising:
  • the drums may be provided with casings sealed against the output shaft. In this way, the spaces inside the drums receiving the freewheel clutches can be filled with oil to ensure lubrication of the freewheel clutches and thus trouble-free operation.
  • the drums 7, 8 may be arranged side by side on one side of the reduction gear 3.
  • the reduction gear may be arranged centrally between the drums.
  • the operating unit can be connected to the control unit via a wire.
  • the operating unit can be connected wirelessly to the control unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Gear Transmission (AREA)
EP23187218.5A 2022-08-10 2023-07-24 Schrapperwinde Pending EP4321470A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SI202200130A SI26399A2 (sl) 2022-08-10 2022-08-10 Vitel za vleko strgalnega elementa

Publications (1)

Publication Number Publication Date
EP4321470A1 true EP4321470A1 (de) 2024-02-14

Family

ID=87474247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23187218.5A Pending EP4321470A1 (de) 2022-08-10 2023-07-24 Schrapperwinde

Country Status (2)

Country Link
EP (1) EP4321470A1 (de)
SI (1) SI26399A2 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1360956A (en) * 1971-12-03 1974-07-24 Inventio Ag Electrical hoist provided with a multi-stage planetary gear box
AT362100B (de) * 1979-06-26 1981-04-27 Schauer Herbert Antriebsanordnung fuer seilzuege
CN104828728A (zh) * 2015-05-12 2015-08-12 浙江海洋学院 船舶用系泊绞车
WO2017216731A1 (en) 2016-06-14 2017-12-21 Sulzer Hydromining (Pty) Ltd Scraper winch
US20190233262A1 (en) * 2018-02-01 2019-08-01 Comeup Industries Inc. Power Winch for Motor Vehicles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1360956A (en) * 1971-12-03 1974-07-24 Inventio Ag Electrical hoist provided with a multi-stage planetary gear box
AT362100B (de) * 1979-06-26 1981-04-27 Schauer Herbert Antriebsanordnung fuer seilzuege
CN104828728A (zh) * 2015-05-12 2015-08-12 浙江海洋学院 船舶用系泊绞车
WO2017216731A1 (en) 2016-06-14 2017-12-21 Sulzer Hydromining (Pty) Ltd Scraper winch
US20190233262A1 (en) * 2018-02-01 2019-08-01 Comeup Industries Inc. Power Winch for Motor Vehicles

Also Published As

Publication number Publication date
SI26399A2 (sl) 2024-02-29

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