SU1687554A1 - Hoisting device - Google Patents

Description

t

(21) 747260/11

(22) 10.10.83

(46) 10/30/91. Bul. No. 40

(71) Special Design and Technology Bureau of Glavmosimzhstro under the City Executive Committee

(72) Z.A.Gerasimov and V.I.Kulkov

(53) 621.86.061 (088.8)

(56) USSR Author's Certificate No. 117634, cl. 66 C 1/28, 1953.

(54) CARGO HANDLING DEVICE

(57) The invention relates to lifting and handling equipment. The purpose of the invention is to improve ease of operation when seizing loads that are prone to sticking. The load gripping device comprises a frame with two-arm gripping levers 2 hinged on it, a mechanism for fixing their positions, the slider of which is stepped. At the same time, the holder 6 is loosely mounted on its upper stage, kinematically connected with the upper arms of the levers 2. 4 Il.

(L

eleven

O 00 3

ate

J

FIG. 2

This invention relates to lifting and handling equipment, in particular, to load handling devices.

The purpose of the invention is to increase the ease of use in the seizure of goods prone to sticking.

FIG. 1 shows the load gripping device after the load is clamped by the gripping levers and its lifting, general view; in fig. 2 - the load gripping device after lowering the load when two-arm gripping levers are in the loading of the bulk of the load; in fig. I - after the lifting of the load gripping device by force of a break, the gripping levers from the load; in fig. k is node I in FIG. 3

The device comprises a support frame 1 with two-arm swivel gripping levers 2, on the vertical lower arms of which the clamps 3 are fixed to clamp the load k. The upper arms of the levers 2 are connected by hinged rods 5 with the holder 6, which is movable along the upper vertical part of the slide 1, which is made stepwise. The slider 7 is located in the vertical guide 8, mounted on the support frame 1. In the cavity of the slide 7 and the vertical guide 3, a four-stroke automatic locking mechanism is installed in the form of a known four-stroke sprocket E.

The length of the upper stage of the slide 7 should correspond to the working stroke of its lower stage, due to the following factors. With the length of the upper step of the slide 7, less than the stroke of the lower step of the slide 7, it will not be fully moved before switching the locking mechanism — the minimum size required for removal of the device from the load corresponding to the minimum convergence of the two shoulders of the gripping arms 2. With the length of the upper step the slider 7, a larger working stroke of the lower stage of the slider 7, its excessive length increases the mass of the tool and its vertical size unreasonably increases.

At the end of the slider 7, a pore of 10 is fixed, on the hinge strut 5 RU of the cathode 11 for aiming the device on the load. For compactness of the device design, two shoulders levers 2 pass through guide 8, for

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five

0

five

0

five

0

45

50

55

this in it and in the slider 7 slots a and b are formed.

The device works as follows.

For the sling suspension 10, the device is hung on the hook of the crane and, with the two shoulders fixed from mixing, the gripping levers 2, are aimed at the load 4 and, if necessary, guided it with the help of the handle 11. After resting the lower frame 1 on the load 4 As a result, when the device is subsequently lifted, the slider 7 leaves the guide 8, while the holder 6 rests on the step of the slider 7 and rises together with the slider 7, through the pull 5 of the two grippers of the two shoulders gripping arms 2 before lighting the load k and its subsequent lifting together with the device.

After lowering the load 4 to the unloading platform, the clamps of the 3 double-shouldered gripping levers 2 can stick in the cargo, which makes it impossible to divorce the two levers of the gripping levers to the sides. However, due to the movable connection between the casing 6 and the slider 7, the latter is freely lowered, which leads to the actuation of the locking mechanism.

During the subsequent lifting of the device for fixing the slider 7 in the vertical guide 8, the frame 1 is removed from the load 4 with the forced separation from it of the stuck clips 3 of the two shoulders of the gripping arms 2. At the same time, the released two shoulders are independently divorced sideways due to the action of the turning point from the strength of the upper arms of the two shoulders of the two shoulders, the articulated t 5 and the holder 6. The lever system takes up its original position when the holder 6 is mounted on the slider step 7.

Claims (1)

Invention Formula A load gripping device containing a support frame, two shoulders gripping levers hinged on it, hinge rods fixed by lower ends on the upper arms of two shoulders gripping levers, a mechanism for fixing their positions, including a fixed one in the central parts of the frame are a vertical guide and a slider located in it, with which the upper ends of the hinge rods are connected, the suspension is rigidly fixed on the upper i end of the slider for the hook of the lifting mechanism, characterized in that ten When it comes to handling goods prone to sticking, the slider is stepped in the central part, and the connection of the upper ends of the hinge bars with the slider is a holder that freely engages the upper step of the slider. . / four Fig.Z Fy