• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A cable-controlled grab device possessing a pair of scoops directly and linkably connected to a support yoke. A central shaft has the scoops pivotably mounted at opposite ends thereof. An upper portion of tackle is secured to the yoke while between a lower portion thereof and the central shaft is arranged a releasable locking mechanism for indirectly connecting the scoops to the yoke. The locking mechanism has two locking arms urgeable by a remotely controllable actuating mechanism into a locking position in engagement with a locking member associated therewith. The actuating mechanism takes the form of a pressure medium cylinder linkably connected between the locking arms and inserted in a hydraulic circuit adapted to be pressure-loaded so as to force the locking arms into the locking position. A remotely controllable valve is included in the hydraulic circuit and is capable when closed of maintaining the arms in the locking position and when open of permitting the locking arms to slide out of engagement with the locking member due to the weight loading of the scoops.
    公开号:SU776553A3
    申请号:SU762373907
    申请日:1976-06-18
    公开日:1980-10-30
    发明作者:Хельман Тауле Биргер
    申请人:А/С Конгсхавн Индустри (Фирма)；
    IPC主号:
    专利说明:

    (54) SINGLE-GRIP GRAYFER The invention relates to a lifting and transport machinery industry, and. specifically for a crane lifting device - a single-cable grapple One-stage grabs are known, which contain an upper head, a lower traverse, the jaws associated with them and a moving intermediate traverse by blocking pulley blocks, as well as a fixing device, equipped with a turning gear, with hooks and hooks with an arresting block. . A disadvantage of the known grapple is the narrow operational capabilities due to the need to install it on a support (load, etc., when opening the jaws. The purpose of the invention is to expand the operating possibilities. This is achieved by the drive of the catch hooks containing a hydraulic cylinder with a shut-off valve, controlled I can remotely connect an air-hydraulic accumulator in the form of a hydraulic cylinder with a spring-loaded piston connected to it by a closed hydraulic circuit. Fig. 1 shows a grapple, general view; Fig. 2 - the same, fro ntalna
    l-hh projection; in fig. 3-6 - elements of a hinged-lever control mechanism in I, 11. Ill and I positions, respectively; in fig. 7 — grab in the closed position with a magnetic magnetic control mechanism, general view; Fig. 8 shows elements of a radio magnetic control mechanism; in fig. 9 top head with guide rollers for closing rope. On the lower traverse 1, the jaws 2 are pivotally attached by connecting rods 3 with the upper head 4. The upper head 4 and the lower traverse 1 are interconnected by shock-absorbing devices made in the form of hydraulic cylinders 5, the cavities of which are filled with working fluid, and in pistons 6 - drilled holes. Hydrocarcases (Lindrov 5 serve as guides for the movable intermediate yoke 7, carrying the blocks of the closing polyspast 8, which go around the locking cable 9, hung on the crane hook (not shown) by means of the shackle 10 of Fig. 1), or the yoke 11 (Fig. 7). On the top head 4, the guide rollers 12 for the closing rope 9 are mounted. The locking device is mounted on the intermediate 7 and lower 1 crosshead (ah. The device is based on pivoting gripping hooks 13, pivotally mounted on the intermediate cross member 7 and acting as an idler with a tapered disc 14, rigidly on the lower traverse 1. - -
    The rotation drive of the gripping hooks 13 includes a two-piston hydraulic cylinder 15, the rods 16 of which are pivotally connected to the gripping hooks 13, (CYLINDER 15 can also be made single-piston (Fig. 7), In this case one of the gripping hooks 13 is attached to the cylinder body 15 and the other to the rod 16. The cylinder 15 has an opening 17 for supplying the working fluid. The hydraulic cylinder 15 is connected by a closed hydraulic circuit (pipelines) to an air-hydraulic accumulator 18 made in the form of a hydraulic cylinder, the rod cavity 19 of which is filled slave air, and piston 20 with air. In the latter, a spring 21 is installed that acts on the pistons 22, thereby creating a constant pressure in the system. In the hydraulic circuit connecting the hydraulic cylinder 15 to the accumulator 18, a check valve 23 is remotely controlled.
    The control mechanism of the valve 23 can be made in two ways; a hinged-lever (fig. 3-6) or radio-magnetic (fig. 7 and 8).
    The remote control of the toggle mechanism is carried out by a cable 24 connected to one end of the pivot arm of the pivot arm 25, the other end of which interacts with the stopper element 6m 26 mounted on the axis 27. The lever 25 controls the closing and opening of the valve 23. In the first case (Fig. 3), the hydraulic-hydraulic chain is blocked and the gripping hooks 13 are prevented from turning. With the valve 23 open, due to the presence of the air-hydraulic accumulator 18 in the hydraulic system, the hooks 13 have the possibility of turning.
    The rotation of the locking element 26 oGrsGnY is provided by the stopper 28, in the lower part of the locking element 26 there is a supportive suppressor 29 installed, which interacts with the locking hook 30 rigidly fixed on the lower Traverse 1.
    When using radio control, the shut-off valve 31, which overlaps the hydraulic circuit, is operated with an electromagnetic actuator that executes commands from the radio-controlled sensor 32 through the junction box 33, which is also connected to the end switch 34. The last
    interacts with a support 35 fixed on the lower cross bar 1. The grapple operates as follows. The opened grapple is lowered onto the load (Fig. 2), the hydraulic system J of the drive of the gripping hooks 13 is open and the latter can rotate freely on their axes. Here, as shown in FIG. 4, the pivot arm 25, interacting with its Q protrusion with the corresponding protrusion of the locking element 26, keeps the check valve 23 in the open position. After the grapple is lowered onto the load, the locking cable is weakened, lowering the intermediate yoke 7 to 5 as long as the spring-loaded locking element 29 of the locking element 26 will not be caught by the protrusion of the locking hook 30 (FIG. 5). At this point, the gripping hooks 13, with their projections 0, are in contact with the tapered disc 14, as shown in FIG. 3.
    Upon subsequent pulling of the closing cable 9, the intermediate track of version 7 begins to rise, as a result of which the locking element 26 rotates on axis 27 (Fig. 6), releasing the pivoting lever 25. The latter is rotated by the action of a spring, closing the check valve
    0 23, due to which the hydraulic chain of the drive of the gripping hooks 13 overlaps, fixing them in the same position. The lower yoke 1 is rigidly connected to the intermediate yoke 7 (Fig. 3), and as the locking cable 9 continues to lift, the jaws 2 close by scooping up the load.
    0 The opening of the jaws 2 can be carried out at any height. To do this, it is necessary to raise the pivot arm 25 by tensioning the cable 24 until it is hooked by the protrusion of the locking element 26. The shut-off valve 23 opens, the working fluid from the hydraulic cylinder 15 is displaced into the air-hydraulic accumulator, and the gripping hooks 13 are able.
    0 turns, and the lower traverse 1 under the action of its own weight and weight of the load in the jaw x 2. Leaves from the intersection with the intermediate traverse 7. The jaws open, vypa
    5 stuff. In this case, due to the presence of damping devices, the reduction of dynamic loads is provided.
    In the second version
    the grapple (Fig. 7-8) opening the shut-off valve 31 is performed by the radio-controlled sensor 32 when it receives the corresponding signal. The power supply of the sensor 32 and the electromagnet valve 31 may be o69c; nof i 0 of the battery pack installed on the grab.
    The signal for closing of the valve 31 is received from the limit switch 34, which interacts with the stand 35 when lowering the intermediate yoke 7.
    The presence of an air-hydraulic accumulator 18 (with a spring-loaded piston 22) creates a constant required pressure in the hydraulic system of the gripping hook drive .13, thus ensuring reliable operation of the grapple.
    The use of the invention allows to expand the technological capabilities of the grapple due to the opening of the jaws at any height.
    权利要求:
    Claims (1)
    [1]
    1. One-cable automatic gripping devices, M., 1952, 20 p. 47, fig. 17a (prototype).
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    类似技术:
    公开号 | 公开日 | 专利标题
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    同族专利:
    公开号 | 公开日
    PT65220B|1977-11-23|
    NL7606738A|1976-12-22|
    DK266476A|1976-12-21|
    NO134943B|1976-10-04|
    GR60322B|1978-05-08|
    NL182069C|1988-01-04|
    IE42837L|1976-12-20|
    US4043580A|1977-08-23|
    FI57577C|1980-09-10|
    CA1042484A|1978-11-14|
    FR2316384B1|1982-07-23|
    AU1500876A|1977-12-22|
    ES449078A1|1977-07-01|
    GB1548695A|1979-07-18|
    DE2626077A1|1977-01-20|
    FR2316384A1|1977-01-28|
    IT1063183B|1985-02-11|
    NO134943C|1977-01-12|
    DK139620B|1979-03-19|
    DK139620C|1979-09-10|
    JPS5852063B2|1983-11-19|
    PT65220A|1976-07-01|
    YU150476A|1982-05-31|
    SE412080B|1980-02-18|
    DD124723A5|1977-03-09|
    NL182069B|1987-08-03|
    FI57577B|1980-05-30|
    SE7607006L|1976-12-21|
    DE2626077C2|1985-07-25|
    BE842992A|1976-10-18|
    JPS523205A|1977-01-11|
    IE42837B1|1980-10-22|
    FI761736A|1976-12-21|
    PL105954B1|1979-11-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    BE528909A|
    DE563502C|1932-11-05|Friedrich Kloess|Single rope grab|
    DE12943C|G. A. buchholz in Charlottenburg, Spandauerstrafse 25|Process of making porous china, earthenware and clay|
    US997748A|1911-03-06|1911-07-11|Owen Bucket Company|Grab-bucket.|
    US1717549A|1925-04-10|1929-06-18|Edgar E Brosius|Grab bucket|
    US1817595A|1929-08-01|1931-08-04|Wallace Lee Sylvester|Excavating bucket|
    DE653269C|1936-04-22|1937-11-19|Scholten Maschinenfabrik U Eis|Single rope grab|
    DE807543C|1948-10-02|1951-07-02|Demag Greiferfabrik G M B H|Single rope grab|
    FR998104A|1948-11-12|1952-01-15|Usines De Louis De Roll Soc D|Single rope clamshell|
    FR1136122A|1955-11-14|1957-05-09|Benoto Sa|Advanced automatic tipper|
    FR1237251A|1959-06-17|1960-07-29|Improvements to clamshell buckets|
    US3934917A|1973-12-10|1976-01-27|Mcginnes Manufacturing Company|Clamshell bucket apparatus|US4381872A|1981-03-26|1983-05-03|Mcginnes Manufacturing Company|Remote controlled clamshell bucket apparatus and method of using same|
    DE4327463C2|1993-08-16|1995-06-29|Salzgitter Maschinenbau|Gripper for a hoist|
    US5443294A|1993-09-22|1995-08-22|Hawco Manufacturing Co.|Single-line clamshell bucket|
    WO1996015975A1|1994-11-18|1996-05-30|Hawco Manufacturing Co., Inc.|Improved single line grapple|
    KR101577323B1|2015-05-04|2015-12-14|한국해양과학기술원|Corer of box type|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    NO752193A|NO134943C|1975-06-20|1975-06-20|
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