SU508538A1 - Loading device - Google Patents

Description

one

The invention relates to the field of mechanical engineering and can be used for loading and unloading parts subjected to heat treatment in hearth furnaces.

A loading and unloading device is known, comprising a frame with guides and trolleys with a landing fork.

However, such a device is complex and requires a large number of orovods.

The purpose of the invention is to simplify the design and increase its reliability. This is achieved by making guide carriages in such a way that the forked carriage can be at different levels. Due to this difference, installation and removal of the pallet truck with the details from the tables located inside and outside the furnace occurs. The transfer of carts from guides of one level to guides to another level is performed automatically by means of the carriage's transfer mechanism. The cart is cantilevered in guides.

FIG. 1 shows a device, side view; in fig. 2 - the same in terms of; in fig. 3 - the same, rear view; in fig. 4 - cable system of adaptation; in fig. 5 - the mechanism of transfer of the trolley from the guides of one level to the guides of another level.

The device consists of a carrier frame 1 with guides 2 and 3, tables 4 and 5, a forked car 6, a cable system for moving the carriage from one level to another direction, and an electric drive. The guides 2 and 3 have a groove profile for holding the wheels 7 of the carriage 6. Along the guides 2, the carriage moves horizontally.

On the guides 3 there are slopes along which the carriage descends to the sections located at the level of the guides 2. Tables 4 and 5 are formed by longitudinal beams fastened together from below so that the tooth of the carriage can move between the beams. When the cart is on the guides 2, its teeth are located below the surface of the tables, and on the guides 3 - above. The surfaces of tables 4 and 5 are located on the same level.

Trolley 6 has two pairs of wheels 7, one of which is fixed above the trolley frame, and the other - under the frame. For the stability of the cart, its center of gravity is located to the right of the axis of the pair of wheels.

The movement of the trolley is carried out through the cable system. The drum 8 rotates from the electric drive, which through the cables 9 transfers the movement to the trolley. For tensioning the cables, prulan compensators 10 are installed. The blocks 11 are mounted on the frame of the fixture, and the blocks 12 are mounted on the trolley 6.

The mechanism for transferring the trolley from the guides of one level to the guides of another level is located on the guides at the end of the trolley's stroke as it moves into the furnace.

When pressing the lever 13, the force is transmitted through the rod 14 to the plug 15, which falls into the groove of the rod under the action of the spring 16. The fork 15 turns around the fixed axis 17 the lever 18, which through the finger 19 moves the slide 20 with the wheel of the cart in it to another direction and the fork 21 slides over the fork 15 to stretch the spring 22. When the force on the lever 13 stops, the rod 14 is pressed by the spring 23 and the fork 21 is pulled into the rod's groove by the spring 22, that is, the mechanism is ready when you press the lever 13 again transfer the sled 20 with the trolley wheel to its former position position In the end positions, the carrier 20 is held by a spring-loaded retainer 24, which falls into the holes in the lever 18. To reduce the frictional forces of the carrier, they move between the frames 25.

A similar but inverted device is placed on the upper guides. The right upper and lower wheels of the trolley fall into the slide 20 of these devices, and then the wheels of the trolley fall into the slide (not shown) mounted on the frames similar to the slide 20. The force on the levers 13 is transmitted when the stop 26 of the trolley rolls onto the roller 27 of the lever 28. The transfer of the trolley from the guides of one level to the guides of another level is made while the trolley is moving along the sled.

For loading, the pallet with parts is placed on table 4. When the electric motor is turned on, the cart moves upwards along the slope of the guides 3, lifts the pallet with parts and puts it into the oven. Coming down the slopes, the cart places the pallet on the table beams 3 and rolls into the rails 20. When the cart rolls in, the stop 26 presses the roller 27 of the lever 28, which leads to the transfer of the cart to the rails 2. Then the end switch is activated and the motor switches to reverse rotation. The cart is rolled back along the guides m 2 and stops. The length of the slide is taken so that the transfer mechanism of the trolley and the limit switch will fall asleep.

When unloading parts from the cure, the cart enters the furnace along the guides 2, is transferred by the transfer mechanism onto the guides 3 with slopes, then, moving backwards and up the slope, removes the pallet from the furnace table 5, removes the pallet from the furnace and, lowering on the slope, puts it on the table 4.

Claims (1)

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