SU368171A1 - CAPABLE DEVICE FOR LIFTING CONTAINERS - Google Patents

Description

The invention relates to the field of lifting equipment, namely, to gripping devices for lifting containers of two sizes.

Grippers for lifting containers of two sizes are known, comprising a frame with arms connected to the rotational drive mounted on it, carrying the gripping elements and guiding clips.

In such gripping devices, the frame for measuring its length in accordance with the type MeipOM of an overloaded container is made telescopic.

The aim of the invention is the creation of such a gripping device, which is simpler in construction and, therefore, cheaper, and also provides for adjustment to another size without the use of additional mechanisms and devices.

This is achieved by the fact that the levers of the proposed gripping device are mounted on vertical shafts, and their ends are bent down and located below the node connecting the levers to the frame, and the levers are curved in the horizontal plane in the form of a trapezium. In the position for gripping a larger container, the left pair of levers is located with its protruding middle part outwards, the right inwards, and in position 2

The scientific research institutes for a smaller container size after turning the levers 180 ° inner ve, vertical walls of the left levers and outer vertical walls of the right levers are located in the same vertical plane passing through the axis of rotation of the levers.

The knurled guide latch can be connected to the drive to rotate around a vertical axis and drive to its

lifting. It is advisable to drive the levers in the form of gears mounted on their shafts and connected to the power cylinders by means of the gear sectors. The drive for turning the guide clips may be made in the form of a cable-block system, actuated by the levers at the time of their turn. The drive for lifting the guide clips has the form of a lever system connected to the ram.

FIG. 1 shows a general view of the gripping device described in the position for a larger container; in fig. 2 - the same for a smaller container; on

FIG. 3 shows the layout of the levers when the larger container is overloaded; in fig. 4 - the same for smaller containers; in fig. 5 — unit for connecting the arms to the frame and driving the arms; in fig. 6 -

rotational drive;

in fig. 7 - drive for lifting the guide clips.

The frame of the gripping device consists of the upper 1 and lower 2 parts, which can rotate relative to each other. On the upper part of the frame / blocks 3 are installed, which are circumscribed by the ropes 4, which are suspended from the lifting mechanism (not shown).

On the lower part 2 of the frame, vertical shafts 5 are mounted on its corners, on which the levers 6, 7, 8, 9 are mounted. These levers can be rotated in a horizontal plane by 180 ° using a drive (in this case, hydraulic).

The ends of the arms 6, 7, 8, 9 are bent downward and located below the node connecting them to the frame. The levers are curved in the horizontal plane in the form of a trapezoid, and in the position to grip a larger container, the left pair of levers 6 VL 7 is located with its protruding middle part outward, and the right 8 and 9 —inward. In the same position for a smaller container, after turning the levers 180 °, the inner vertical walls and the left levers 5, 7 and the outer vertical walls 6 of the right levers 8, 9 are located in the same vertical plane passing through the axis of rotation of the respective levers.

Such bending of the levers in the vertical and horizontal planes ensures their rotation relative to the frame for adjustment to a different size of the container.

The lever rotation drive contains four hydraulic cylinders 10, each of which is associated with a toothed sector 11 meshed with a gear 12, which sits on a shaft 5 mounted in bearings 13 and 14.

At the end of each lever mounted gripping heads 15 of known construction, such as shtykovye. On the upper part of the head 15, an axis 16 is fixed, carrying the block 17 of the cable-blocking system. In block 17, there are tides 18 to which the cylinder 19 of the hydraulic cylinder 20 is attached. On both sides of the cylinder body of the cylinder 20, links 21 and 22 of the linkage system are hinged. The link 21 is pivotally connected at its free end to the tide 18, and the link 22 is connected with a guide pin 23, which is pivotally connected to the tide 18. The guide pins 23 center the catch device relative to the container. Rope 24 bends around block 17 and is secured with a bar 25 on it. Rope 24 also bends around blocks 26 and 27 mounted on levers. The ends of the rope 24 round the horizontal bypass blocks 28 mounted on the lower part 2 of the frame and secured by tension screws 29. The axes of the blocks 28 coincide with the axes of rotation of the levers.

For reliable fixation of the levers in the working position, hydraulic cylinders 30 are installed, the rod 31 of which fits the gear sector 11 relative to the frame 2. The device 32 is installed on the frame for a cable current lead.

The gripping device may be either in the collapsed position to work with smaller containers, or in an unfolded position to work with larger containers.

The rebuilding of the load handling device for working with a large container is carried out as follows.

When turning on the drive rotation of the levers, the rods of the hydraulic cylinders 10 of the levers 6, 7 affect the toothed sector 11, which during its movement turns the toothed

a wheel 12 mounted on the shaft 5. The shaft 5 rotates with the one mounted on it. lever. Initially, a pair of levers 6, 7 is deployed until the ends of the levers with gripping heads 15 pass under the levers S and 9. Then turn on the hydraulic cylinders 10 of the levers 8 and 9, turning them. The levers rotate until the gripping heads are mounted symmetrically on the same axis, which is achieved by turning 180.

The end positions of the levers are limited by limit switches (not shown), control hydraulic cylinders 30 whose shafts 31 fixes the operating position of the levers through the gear sector 11. When the levers are rotated, the ropes 24 run in blocks 28, as a result of which the length of each branch that entails the rotation of the blocks 17 and the guide clamp 23 fixed on it. The ratio of the diameters of the block 17 and 28 is 2: 1, as a result of which, when the levers are rotated 180 °, the guide clamps rotate pa 90 °. When the cylinder 20 is turned on, the fixing guides are raised in a vertical plane.

Rebuilding the gripping device to work with smaller containers is performed in the reverse order.

Subject invention

Claims (5)

1. A gripping device for lifting containers of two sizes, including a frame with arms connected to it connected with a drive, carrying gripping elements and guide clamps, characterized in that, in order to increase the efficiency of the device, the levers are mounted on vertical shafts, their ends are bent down and located below the node connecting the levers to the frame, and the levers are curved in the horizontal plane in the form of a trapezium and in the position to grip a larger container; the left pair of levers is protruding from the outside, the right inwards container after turning them 180 ° inner vertical walls of the left levers and the outer vertical walls of the right levers are located in the same vertical plane passing through the axis of rotation of the levers. 2. The device according to claim 1, characterized in that the drive of the levers is made in the form of gears mounted on their shafts and connected to the power cylinders by means of the gear sectors. 3. The device on on. 1 and 2, characterized in that each guide stopper is connected to the drive for turning it around vertical axis and drive to lift it. 4. Device on PP. 1-3, characterized in that the drive for turning the guides clamps made in the form of a cable block system, actuated by levers at the time of their rotation. 5. Device on PP. 1-4, characterized in that the drive for lifting the clips is made in the form of a lever system connected to the ram. g gb , Have .L 28G214 / YU 29 -Vuz.ff nineteen. 7