RU29524U1 - Container gripper - Google Patents

Abstract

1. A gripping device for containers, comprising a box-shaped main frame, retractable beams with traverses attached to them, equipped with rotary locks and mechanisms for their rotation, a beam movement drive including an electric motor and gearbox with a gear or sprocket placed on its low-speed shaft and mounted on the beams a gear rack or chain, characterized in that the beam movement drive mounted on a height-adjustable plate located on the upper belt of the main frame is equipped with on the side walls of the crank mechanisms, the wheels of which interact by means of gears with the two ends of the low-speed shaft of the gearbox, and the slider of each mechanism is equipped with a pair of gears mounted rigidly on an axis placed in the body of the slider so that a small one interacts with the rack mounted on the slide guide, and a large one, through an opening in the side wall of the main frame, with a rail mounted on a retractable beam. 2. The device according to claim 1, characterized in that the lock rotation mechanism on each traverse is made in the form of a L-shaped drive lever, one end of which is connected to the lock levers turning in the horizontal plane by means of rods mounted on them hinged in horizontal and vertical planes, and the other end of the drive lever is connected to the load by means of its orientation device, consisting of two rods located one in the other with the possibility of free movement, one of which, with a measured load placed on it, pivotally connected to the drive lever, and the other pivotally mounted on the base

Description

Gripper for containers.

The utility model relates to grab grippers designed for handling containers of various sizes.

A gripping device is known (USSR Author's Certificate No. 1730000, class B 66 C 1/66, 02/12/1990), containing a frame, telescopic beams mounted on it, equipped with gripping bodies, and a beam movement drive including a hydraulic shield with two blocks on the flange , fixed blocks and one flexible element mounted on the frame and sequentially enveloping one of the blocks of the stem of the hydraulic shchindr, frame blocks and another block of the hydraulic cylinder.

However, this device, due to the presence of a flexible element that can stretch during operation, will not ensure reliable operation, as may lead to jamming of the gripping organs when they are removed from the container fittings.

The closest analogue in technical essence is a gripper for freight containers of various lengths (DE 21 19 479 SZ, class B 66 C 1/66, 04/21/1971), containing a supporting frame, telescopic beams installed on it, equipped with gripping bodies and a beam movement drive, consisting of an electric motor with a reducer, on the output shafts of which the sprockets are fixed, and a chain is fixed on the beams. Locking devices.

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in 66 with 1/66

mounted on retractable beams, fix its length in accordance with the standard dimensions of the containers, but this does not exclude the spacing of the beams in any position with an emergency outcome.

Therefore, the disadvantages of this device are the lack of reliability and design complexity due to the presence of redundant elements in the form of asterisks and a chain tilted on a beam.

The technical task of this utility model is to simplify the design and increase reliability.

This problem is solved due to the fact that the beam movement drive is equipped with crank mechanisms, the wheels of which interact through gears with the two ends of the low-speed shaft, and the slider of each mechanism is equipped with a pair of gears mounted rigidly on the axis, a small one of which interacts with the rail, mounted on a slide guide, and a large one with a rail mounted on a retractable beam. In addition, the lock rotation mechanism on each traverse is made in the form of a L-shaped drive lever, one end of which is connected to the lock levers rotatable in the horizontal plane by means of rods, and the other end is connected to the load, and the axis of rotation of the drive lever placed on it in place kink, located on the traverse parallel to the longitudinal axis of the gripper. Drive lever at an estimated distance from

/ (pSy,

load connected to a hydraulic pusher mounted pivotally on

traverse base.

The utility model is illustrated by drawings, where:

in FIG. 1 shows a gripper for large containers;

in FIG. 2 is a view A (top view) of FIG. 1;

in FIG. 3 - section BB in figure 1 (on the crank, the connecting rod is in

intermediate position);

in FIG. 4 - section bb in figure 1 (on the slider);

in FIG. 5 is a view of G (left) in figure 1;

in Fig.6 is a view of D in Fig.5 (on the lever of the rotary lock).

in Fig.7 is a section EE in Fig.5 (for cargo);

The gripping device for containers (FIG. 1 and FIG. 2) comprises a main box-shaped supporting frame 1, retractable beams 2 with traverses 3 attached to them, equipped with rotary locks 4 for coupling with the container. The beam movement drive, consisting of an electric motor 5 and gearbox 6, is mounted on a height-adjustable plate 7, one side of which is pivotally connected via a bracket 8 to the main frame 1, and the other by means of hinged bolts 9 and nuts fixed on the main frame 1. gear shafts 11 are attached to the shafts of the gearbox 6 (FIG. 3), which, by means of gears, interact with the cranks 12 mounted on the side walls of the main supporting frame 1. At one calculated distance Г from the axis of the crank 12

at the end, a connecting rod 13 is pivotally connected to it, which with its other end is also pivotally connected to the slider 14. The slider 14 (Fig. 4) is equipped with a pair of gears (large 15 and small 16 - the gear ratio of the gears of the wheels is 4: 1), fixed on the axis, and the small wheel 16 interacts with the rail 17 mounted on the slide rail 14, and the big wheel 15 interacts with the rail 18 mounted on the slide beam 2.

The mechanism of rotation of the locks 4 for coupling with the container (Fig. 5) is a L-shaped drive lever 19, one end of which is pivotally fixed (Fig. 6) with the levers 20 of the rotary locks 4 with the help of rods 21, and the other end of the lever 19 is connected to with a measured weight 22, which is (Fig. 7) stacked plates and mounted on a rod 23, pivotally connected to a lever 19 and freely mixed on another rod 24, which is pivotally mounted on the beam 3. The drive lever 19 is actuated by means of a pivotally attached to him hydrotalk ator 25, also pivotally mounted on the crosspiece 3 on the basis of the calculated distance from the load. The axis of rotation of the drive arm 26, located at the point of break, is located on the traverse 3 parallel to the longitudinal axis of the gripper.

The gripping device operates as follows. In the shifted position of the beams 2, containers of shorter length are captured (mm is the length of the container).

To perform loading and unloading operations with large containers (L 12192 mm), the beams 2 are advanced in opposite directions from the main carrier frame 1. For this, from the electric motor 5, the rotation is transmitted via gears to the crank 12, which, in turn, is pivotally mounted using a connecting rod 13 drives the slider 14. In this case, a large gear wheel 15, which is meshed with the rack 17 mounted on the slide beam 2, extends the beam a distance equal to: C a + b;

where a 2xr is the distance over which the connecting rod 13 moves when the crank 12 rotates 180 °, where

g 306.7 mm - the connecting rod arm 13, then

a 2x306.7 613.4 mm;

b 4 X a - the distance by which the slider 14 moves the beam 2 (the gear ratio of gears is 4: 1); Consequently,

With 5 X a 3067 mm - in each direction, and in total the extension of the beams 2 occurs at 6134 mm, i.e. on the length of a large container:

L 6058+ 6134 12192 mm, where 6058 mm is the length of the small container.

Thus, the small stroke of the connecting rod 13 due to the gear ratio of the gearbox of rack and pinion gears (in this case 4: 1) is converted to

 W and

the required stroke extension of the beams 2. With a further rotation of the crank 12, the beams 2 return to their original position.

Therefore, with this design there is no need for locking devices, which ensures its reliable operation.

To stow the container, after installing the beams 2 to the desired size, the gripping device with the help of spring-loaded catchers 27 is centered on the walls of the container so that at the time of landing its pivot pins 4 are oriented to the upper holes of all corner fittings. In the initial position, the pivot locks 4 are in closed position. The locks 4 are turned into the open position from the hydraulic pusher 25, the rod of which extends up to the limit, thereby actuating the L-shaped lever 19, turning it around an axis, which, in turn, by means of rods 21 turns the levers 20 of the rotary locks 4 by 90 °. When lowering the gripper, the rotary locks 4 enter the openings of the container. When the hydropusher 25 is de-energized, its rod falls down under the influence of the load 22 and, through the system of levers, rods, the rotary locks 4 return to their original position, i.e. to the closed position. Container capture occurs. Similarly, container suspension occurs. The lock rotation mechanism is simple and reliable, as it exerts an electromechanical effect on one position “open, and on the position“ closed, the load does not require special maintenance.

Claims (4)

1. A gripping device for containers containing a box-shaped main frame, retractable beams with traverses attached to them, equipped with rotary locks and mechanisms for their rotation, a beam movement drive including an electric motor and gearbox with a gear or sprocket placed on its low-speed shaft and mounted on the beams a gear rack or chain, characterized in that the beam movement drive mounted on a height-adjustable plate located on the upper belt of the main frame is equipped with on the side walls of the crank mechanisms, the wheels of which interact by means of gears with the two ends of the low-speed shaft of the gearbox, and the slider of each mechanism is equipped with a pair of gears mounted rigidly on an axis placed in the body of the slider so that a small one interacts with the rack mounted on the slide guide, and a large one, through an opening in the side wall of the main frame, with a rail mounted on a retractable beam. 2. The device according to claim 1, characterized in that the lock rotation mechanism on each traverse is made in the form of a L-shaped drive lever, one end of which is connected to the lock levers turning in the horizontal plane by means of rods mounted on them hinged in horizontal and vertical planes and the other end of the drive lever is connected to the load by means of its orientation device, consisting of two rods located one in the other with the possibility of free movement, one of which, with a measured load placed on it Is connected pivotally to the drive lever and the other is pivotally mounted on the base crosspiece. 3. The device according to claims 1 and 2, characterized in that the drive lever at a calculated distance from the load is pivotally connected to a hydraulic pusher mounted on the base of the beam also pivotally. 4. The device according to claims 1 to 3, characterized in that the axis of rotation of the drive lever, placed on it at the break point, is located on the traverse parallel to the longitudinal axis of the gripping device.