SE8801999L - Crane grapple arrangement - has two claw halves opened and closed by horizontal, parallel hydraulic cylinders acting on hinged side plates
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Crane grapple arrangement - has two claw halves opened and closed by horizontal, parallel hydraulic cylinders acting on hinged side plates
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Publication number
SE8801999L
SE8801999LSE8801999ASE8801999ASE8801999LSE 8801999 LSE8801999 LSE 8801999LSE 8801999 ASE8801999 ASE 8801999ASE 8801999 ASE8801999 ASE 8801999ASE 8801999 LSE8801999 LSE 8801999L
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Priority claimed from SE8704058Aexternal-prioritypatent/SE459805B/en
Application filed by Hiab Foco AbfiledCriticalHiab Foco Ab
Priority to SE8801999ApriorityCriticalpatent/SE8801999L/en
Publication of SE8801999D0publicationCriticalpatent/SE8801999D0/en
Priority to DE19883891057prioritypatent/DE3891057T1/en
Priority to AU26028/88Aprioritypatent/AU2602888A/en
Priority to PCT/SE1988/000467prioritypatent/WO1989003800A1/en
Publication of SE8801999LpublicationCriticalpatent/SE8801999L/en
B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
B66C3/14—Grabs opened or closed by driving motors thereon
B66C3/16—Grabs opened or closed by driving motors thereon by fluid motors
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Load-Engaging Elements For Cranes
(AREA)
Shovels
(AREA)
Abstract
The crane grapple comprises two hydraulically operated, claw-like jaws (2,3) hinged to a supporting frame (1) and pivoting between open and closed positions. The jaws are actuated by two double-acting hydraulic cylinders (12, 12') and each have a pair of spaced apart, but mutually connected flat side members (4, 5, 6, 7) in parallel planes. One side member of one pair can pass closely to, and on the inside of a cooperating side member of the other pair. A rotator (31) is connectible with the frame for suspending the grapple from the crane tip. Each hydraulic cylinder is positioned in the same plane as two cooperating and juxtaposedly, movable side members (4,6; 5,7) on both jaws. The cylinder body is hinged to one side member (4,5) while its piston rod is hinged to the other (6,7).
SE8801999A1987-10-191988-05-30Crane grapple arrangement - has two claw halves opened and closed by horizontal, parallel hydraulic cylinders acting on hinged side plates
SE8801999L
(en)
DRIVE GRAYFER1 The invention relates to devices for gripping and lifting large sunken objects or submerged to a great depth. Objects are known as a gripping grapple containing a flooring frame, on which the jaws are articulated with two power cylinders. the capture of objects sunken or immersed to a greater depth. The purpose of the invention is to capture objects sunken or immersed to a greater depth. The above objective is achieved by the fact that the power cylinders are located above the They are connected by hinges with the jaws and are equipped with a common hollow rod, which communicates between the cavity of the power cylinders. In addition, in order to prevent the spontaneous opening of the jaws on one of them, the latch is made in the form of two bars rigidly connected between themselves and having curly cuts interacting with the corresponding finger of the hinge of the other jaw. To reduce the scooping efforts and prevent the formation of an earth cushion when gripping, the jaws are provided with soil-clearing nozzles connected to the water section of the collection-1015202530torae located in the body of each jaw. In order to transfer information about the jaw closure, the bar has latches in each jaw. figure cutouts are fitted with contact sensors for remote signaling. In FIG. Figure 1 shows the proposed grapple (In the closed CONDITION; in Fig. 2 — the same in the opened state;, in Fig. 3 • - the power drive in the section; in Fig. 4 - section A — A in Fig. 1. Drive The grab consists of frame 1, left 2 and right 3 crescent rotary jaws, two power pneumatic or hydraulic cylinders 4 \\ 5, and a common for both cylinders of rod 6. There is a nozzle 7 for supplying the working medium to cylinder 5 (FIG 3) has an internal through channel for the passage of the working medium into the second crank'Indr 4. The rotary jaws 5! 2 and 3 are hinged on the axes S and P of the frame / The upper ends of the jaws are hingedly connected to the power cylinders 4 and 5. On the fingers 10 of the hinges of the jaw 3, there is a folding catch 11, made in the form of two bars rigidly interconnected. The free ends of the bars have figured cuts interacting with the fingers 12 of the hinges of the jaw 2. Over fi-