SU1486456A1 - Load engaging device - Google Patents

Description

The invention relates to load-gripping bodies of machines and allows you to use the device in the production of loading and unloading operations in cramped conditions, Lifting device contains a frame with cargo magnets connected to the drive of their lifting. Racks are connected with the frame and on them are mounted the pickup elements _g associated with Their drive. The drive of the pickup elements is made in the form of two branches of ropes connected with a drum. This drive allows you to automatically close the pick-up elements under the load after approaching the racks. 6 Il.

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The invention relates to lifting equipment, in particular for lifting devices of lifting machines and mechanisms.

The purpose of the invention is to ensure the operation of the load gripping device in cramped conditions.

Fig, 1 shows the device, a general view; FIG. 2 is a view A in FIG. 1; FIG. 3 is a section BB in FIG. 1; Fig, 4 is a section bb In Fig.2; FIG. 5 is a view of FIG. 4; Fig, 6, the kinematic diagram of the device,

The load gripping device comprises a frame 1 with a drive 2 located on it in the form of a cargo winch, on which with the help of a polyspast

suspension 3 suspended cargo magnets 4, on the frame 1 installed average. mobile 5 and extreme fixed 6 and 7 guides. To drive the movable guides 6 and 7 on the frame 1, a screw gear 8 is placed. The movable guides are suspended to the frame 1 on four-roll trolleys 9. On the frame 1 brackets 10 are mounted for hanging on hooks 11 of the lifting device crane. On the guides 5, 6 and 7 are fixed pickups for cargo. Each pickup contains a carriage 12, mounted on a rack 13, and a vertical shaft 14, The carriage 12 contains a four-wheel balancing trolley 15, two rollers

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16 and the stops 17, which interact under load with the upper shelves of the 5, 6 and 7, the vertical shaft 14 is installed in the rack 13 by means of radial 18 and 19 and the thrust bearings 20, the lever 21 is fixed to the upper end of each shaft 14 The block 23 is fixed to the block 23, the lower part of the shaft 14 is fixed on the gripping element 24, fixed by the nut 25, and in the lower part of the upright 13 there are stops 26 and 27 for fixing the extreme positions of the lifting element 24, the body is fixed on the stand 15 13 28 tensioner 29, which may be you Completed in the form of a spring-loaded rod or counterweight, the flexible link 30 is attached to the lever 21 at one end, which, bypassing block 31, is connected to the tensioner 29, the drive of the pickup elements in this device also drives the pickup struts 25 and 13 made in the form of a driving drum 32 and two ropes 33 and 34 fixed by one ends on it, the Rope 33 bends the blocks 23 and 35 of the levers. The other end of the rope 33 is closed on the spring-loaded rod 36, which interacts with the limit switch 37. The rope 34 bends the blocks 38-43, the rope 34 is connected with the uprights 13 and the spring-loaded rod 44, which interacts with the limit switch 45,

Load handling device works as follows

In the initial position, the guides up to 6 and 7 by means of a screw gear 8 are separated by a distance equal to approximately two-thirds of the length of the load, the carriages 12 are moved apart to the extreme position, the pickup elements 24 are subjected 45 across the guides 5, 6 and 7. Magni * gy 4 using the actuator 2 is lowered 100-150 mm below the pickup elements 24, In cramped conditions, for example, in a semi-wagon, the gripping device induces a load — a sheaf of sheet material — through the crane mechanisms, after the magnets touch the load, they are turned on and lifted 'material n Drive 2 so that the lower weight of the cargo was 100-150 mm above the level of pickup elements and pickups. When this rope 33 is wound on the drum 32,

and the can ^ t 34 is wound from it. The carriages 12 of each rail begin to "move towards each other," first one of the two carriages 12 with one guide post 13 touches the load and then the other, after which the movement of both carriages stops. With further operation of the drum 32, the levers 21 ·, shafts turn 14 and the pick-up elements 24. At the same time, the efforts of the tensioning devices 29 are overcome through the flexible thrust 30. After the levers 21 and the pick-up elements 24 are rotated 90 ° and rest against the stops 27, the movement of the spring-loaded rod 36 begins and the final switch reader 37 turns off the drive of drum 32. Pickup elements 24 occupy the working position. Then drive 2 is turned on and magnets 4 with a bundle of sheet material are lowered onto pickup elements 24. After that, magnets 4 are turned off. Lowering the pack into the gondola by a crane and not bringing it up to 100-150 mm to the floor, turn on the magnets 4 and drive 2 to raise the pack by 100-150 mm. Then the drum 32 is turned on to open the carriages 12. In this case, the rope -34 is wound, and the rope 33 is unwound from the drum, which leads to a decrease in the tension of the rope 33 and allows, under the action of the tension device-29 and thrust 30, to the lever 21 and. 24 turn 90 ° in the opposite direction, i.e., return to the starting position. If the pillars 13 abut against the walls of the gondola, and the drum 32 rotates and the rope tension increases, this leads to the movement of the spring-loaded rod 44 acting on the limit switch 45, disabling the drive of the drum 32, After the pickup elements 24 return to their original position , the load is lowered to the floor of the gondola by drive 2 and magnets 4. “Further, the operations are repeated,

In this way, the load gripping device makes it possible to work in cramped conditions, for example, when laying packs of sheet material in gondola cars, since there is no need to provide for gaps between packs.

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Claims (1)

Claim A load gripping device containing a frame with a lifting mechanism for electromagnets, racks mounted on a frame, hooks mounted on racks with the possibility of their turning from the drive relative to the racks in a horizontal plane, about ₁₀ and ₁₀ that, with the aim of improving operational performance due to the possibility of working in cramped conditions and picking up loads of various widths, it is equipped with 15 tensioners mounted on racks, limit switches included in the control circuit drive-driven pickups fixed to the frame and spring-loaded rods fixed to the frame with the ability to interact with limit switches, and each pickup is connected to its drive by means of a shaft mounted in the rack with a lever, while the stands are mounted to move along the frame from an actuator for turning pickups, made with a drum on which two branches of the rope are fixed, one of which is connected to each of the uprights and one spring-loaded stem, and the other to the lever and drive grabs, Phage. one 1486456 1486456 e-β figm 1486456 & CD g