EP0502973B1 - Gitterreiniger - Google Patents

Gitterreiniger Download PDF

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Publication number
EP0502973B1
EP0502973B1 EP91900958A EP91900958A EP0502973B1 EP 0502973 B1 EP0502973 B1 EP 0502973B1 EP 91900958 A EP91900958 A EP 91900958A EP 91900958 A EP91900958 A EP 91900958A EP 0502973 B1 EP0502973 B1 EP 0502973B1
Authority
EP
European Patent Office
Prior art keywords
carriage
drum
rope
grid cleaner
grapple
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 - Lifetime
Application number
EP91900958A
Other languages
English (en)
French (fr)
Other versions
EP0502973A1 (de
Inventor
Dirk Jan Bosman
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.)
STORK BOSMAN BV
Original Assignee
STORK BOSMAN BV
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 STORK BOSMAN BV filed Critical STORK BOSMAN BV
Priority to AT91900958T priority Critical patent/ATE92129T1/de
Publication of EP0502973A1 publication Critical patent/EP0502973A1/de
Application granted granted Critical
Publication of EP0502973B1 publication Critical patent/EP0502973B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
    • E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
    • E02B8/023—Arresting devices for waterborne materials
    • E02B8/026—Cleaning devices

Definitions

  • This invention relates to a grid cleaner comprising at least one carriage that is movable along a rail, said carriage mounting at least one drivable drum on which a hoisting rope, to which a grapple is connected, can be moved up and down, said carriage mounting at least one second drum for winding a fluid supply hose and a fluid exhaust hose for the hydraulic operation of the grapple.
  • a grid cleaner of the type described in the preamble is characterized in that the first drum is fixedly mounted on a driving shaft and the second drum is rotatably mounted on the driving shaft, said driving shaft being connected to said second drum by means of a clockwork spring or helical spring.
  • Means may be provided which prevent rotation of the drivable drum when the grapple abuts an obstacle. Indeed, in such an event, too, twisting of the fluid hose and the hoisting rope may occur.
  • the hoisting rope may extend from the drum over a rope-slack pulley.
  • This rope-slack pulley may be rotatably mounted on a lever whose other end is rotatably mounted on the carriage.
  • the rope-slack pulley may be provided with a stop rod adapted to cooperate with a stop connected to the carriage.
  • the stop rod may be under the influence of a tension spring.
  • lever can cooperate with a rope-slack switch arranged in the electric circuit of the motor operating the drum.
  • Another arrangement for preventing rotation of the drivable drum when the grapple butts an obstacle may comprise a tubular monorail from which.the carriage is suspended, but the carriage's longitudinal axis extends parallel to the centreline of the monorail and the centres of gravity of the carriage and the grapple are not located vertically below the monorail, so that when the grapple abuts an obstacle, the carriage tilts and operates an inclination switch arranged in the electric circuit of the motor.
  • a grid cleaner comprises a carriage 1 which is suspended from wheels 2 for moving the carriage along a rail 3.
  • the drive of the wheels 2 is omitted for clarity's sake, but can be effected in a known manner: reference is made, for instance, to NL patent application 87.01939 and NL patent application 86.03279, both in applicant's name.
  • a reduction or driving gearbox 4 to which a motor 5 is connected.
  • two projecting shafts 6 and 7 each mounting two sheaves 8 and 9 arranged side by side.
  • Wound on the sheave 8 is a hoisting rope 10, while a fluid hose 11 is wound on the sheave 9.
  • the cable 10 and the hose 11 extend over rope-slack pulleys 12 and 13, respectively. From the pulleys 12, 13 the hoisting rope 10 and the fluid hose 11, respectively, extend downwardly to a grapple 14.
  • the known per se elements are not described in any further detail here, since they are described extensively in applicant's NL patent applications mentioned above.
  • a helical clockwork spring 15 is mounted, which at one end is fixedly connected with the shaft 6,7 and at the other end with the sheave 9 for the fluid hose.
  • the sheave 9 is further adapted to rotate freely on the shafts 6, 7, while the sheaves 8 are fixedly connected to the shafts 6, 7. In this way the respective sheaves 8 and 9 can rotate relatively to each other, so that any differences in length between the fluid hose and the hoisting rope are automatically compensated.
  • each rope-slack pulley 12,13 is connected to one end of a lever 16, whose other end is rotatably connected to the carriage 1. Further mounted in the carriage, in the path of movement of the lever 16, is a switch 17 which is arranged in the electric circuit of the motor 5.
  • a so-called stop rod 18 is connected to the rope-slack pulley 12, 13, the rod being fixedly connected to the lever 16, the other end of the rod being suspended from the carriage 1 by means of a spring 19.
  • the carriage 1 is provided with a stop 20 for supporting the stop rod 18 in the neutral service position.
  • the carriage can be arranged in a rotated position relative to the gearbox 4 and the sheaves 8,9 such that the respective vertical portions of the hoisting rope are approximately in the longitudinal median plane of the carriage, which ensures a proper balancing of the forces involved.
  • the sheaves 8,9 and the motor 5 and the gearbox 4 may be similar to those described with reference to Figs 1-2. The same holds for the clockwork spring 15.
  • the parts Under the influence of the weight of the various parts and the proper choice of the points of suspension, in operation the parts will be positioned relatively to each other as shown in Fig. 4. However, when the grapple abuts an obstacle 24 (see Fig. 5), the weight of the grapple drops out, so that the whole tilts about the round rail 20, thus operating an inclination switch 22 mounted on a driving motor 23 of one of the rollers 21.
  • the inclination switch 22 is included in the electric circuit (not shown) of the driving motor 5 of the reduction gearbox 4, so that when the grapple 14 abuts an obstacle (24), as shown in Fig. 5, the rope sheave 8 and the hose sheave 9 will tilt, thus operating the inclination switch 22 and hence the motor 5, so that the rope sheave 8 and the hose sheave 9 will stop immediately.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • Control And Safety Of Cranes (AREA)

Claims (8)

  1. Gitterreiniger mit wenigstens einem Wagen (1), der längs einer Schiene (3) beweglich ist und wenigstens eine erste antreibbare Trommel (8) trägt, auf der ein Zugseil (10) auf und nieder bewegt werden kann, an dem ein Greifer (14) angebracht ist, wobei der Wagen (1) wenigstens eine zweite Trommel (9) zum Aufwickeln eines Fluidförder- und Fluidabgabeschlauchs (11) für die hydraulische Betätigung des Greifers (14) trägt,
    dadurch gekennzeichnet,
    daß die erste Trommel (8) auf einer Antriebswelle (6, 7) fest angebracht ist und die zweite Trommel (9) auf dieser Antriebswelle (6, 7) verdrehbar ist, wobei die Antriebswelle (6, 7) mit der zweiten Trommel (9) mittels einer Uhrwerkfeder oder einer Spiral- bzw. Schraubenfeder (15) verbunden ist.
  2. Gitterreiniger nach Anspruch 1,
    dadurch gekennzeichnet,
    daß eine Einrichtung 117) vorgesehen ist, die eine Verdrehung der antreibbaren Trommel (8) verhindert, sobald der Greifer (14) an einem Hindernis (24) zum Anliegen kommt.
  3. Gitterreiniger nach Anspruch 2,
    dadurch gekennzeichnet,
    daß das Zugseil (10) sich von der Trommel über eine Seilspannrolle (13) erstreckt.
  4. Gitterreiniger nach Anspruch 3,
    dadurch gekennzeichnet,
    daß die Seilspannrolle (13) drehbar an einem Hebel (16) angebracht ist, dessen anderes Ende verschwenkbar am Wagen angebracht ist.
  5. Gitterreiniger nach Anspruch 4,
    dadurch gekennzeichnet,
    daß die Seilspannrolle (13) mit einer Stoppstange (18) versehen ist, die mit einem Anschlag (20) an dem Wagen zusammenwirkt.
  6. Gitterreiniger nach Anspruch 5,
    dadurch gekennzeichnet,
    daß die Stoppstange (18) unter dem Einfluß einer Spannfeder (19) steht.
  7. Gitterreiniger nach Anspruch 4, 5 oder 6,
    dadurch gekennzeichnet,
    daß der Hebel (16) mit einem Schlaffseilschalter (17) zusammenwirkt, der in einem elektrischen Schaltkreis des Motors (5) für den Antrieb der Trommel angeordnet ist.
  8. Gitterreiniger nach Anspruch 1 oder 2,
    dadurch gekennzeichnet,
    daß der Wagen auf einer rohrförmigen Monoschiene (20) derart aufgehängt ist, daß die Längsachse des Wagens parallel zur Mittellinie der Monoschiene (20) verläuft, wobei die Schwerpunkte des Wagens und des Greifers (14) nicht senkrecht unter der Monoschiene (20) liegen, so daß beim Auftreffen auf ein Hindernis (24) der Wagen kippt und einen Neigungsschalter betätigt, der in dem elektrischen Schaltkreis des Motors (5) angeordnet ist.
EP91900958A 1989-11-27 1990-11-27 Gitterreiniger Expired - Lifetime EP0502973B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91900958T ATE92129T1 (de) 1989-11-27 1990-11-27 Gitterreiniger.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8902930 1989-11-27
NL8902930A NL8902930A (nl) 1989-11-27 1989-11-27 Roosterreiniger.

Publications (2)

Publication Number Publication Date
EP0502973A1 EP0502973A1 (de) 1992-09-16
EP0502973B1 true EP0502973B1 (de) 1993-07-28

Family

ID=19855704

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91900958A Expired - Lifetime EP0502973B1 (de) 1989-11-27 1990-11-27 Gitterreiniger

Country Status (4)

Country Link
EP (1) EP0502973B1 (de)
DE (1) DE69002464T2 (de)
NL (1) NL8902930A (de)
WO (1) WO1991008346A1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1634003C3 (de) * 1967-09-25 1979-12-20 Apparatebau-Muenster, 2209 Krempe Rechenreinigungsmaschine
AT307999B (de) * 1971-11-15 1973-06-12 Kuenz Hans Masch Rechenreinigungsanlage
DE2847314B1 (de) * 1978-10-31 1979-05-31 Passavant Werke Rechenreinigungsvorrichtung
US4404986A (en) * 1981-01-13 1983-09-20 Fulghum Industries, Inc. Take up system for long lengths of high pressure hose
NL8701939A (nl) * 1987-08-18 1989-03-16 Beheermaatschappij B Bosman B Roosterreiniger iii.

Also Published As

Publication number Publication date
EP0502973A1 (de) 1992-09-16
NL8902930A (nl) 1991-06-17
DE69002464D1 (de) 1993-09-02
WO1991008346A1 (en) 1991-06-13
DE69002464T2 (de) 1993-12-02

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