SU372130A1 - TELESCOPIC BELT CONVEYOR}> & (^^ soolznal - Google Patents

Description

one

The invention relates to industrial transport, in particular to telescopic belt conveyors.

Telescopic belt conveyors are known which contain an expanding frame in the form of articulated levers forming a lever mechanism of the Nurenberg scissors type on which the roller supports supporting the belt and the tape drive are fixed. These conveyors typically operate in engagement with a working machine, such as a coal miner, which moves and changes the length of the conveyor.

The purpose of the invention is the self-propagation of the conveyor frame. This is achieved by the fact that the rollers under the cargo branch of the belt are attached to additional levers that are hingedly connected to the top hinges of the frame.

FIG. 1 shows the proposed conveyor, general view; in fig. 2 is a section along A-A in FIG. one; in fig. 3-section along B - B in FIG. one.

On the sliding frame in the form of pivotally articulated levers / forming a lever mechanism of the Nurenberg x scissors type, there are reinforced roller supports 2 for the load branch and roller supports 3 for the idle branch, supporting ribbons 4 and tape storage.

The roller 2 under the cargo branch of the tape 4 mounted on the additional levers 5,

pivotally connected to the top frame joints. Tape 4 around the drive drum 6, fixed 7 and movable 8 drums of the drive. The drums 5 are mounted on a tension carriage 9, which can be moved with the help of a rope 10 by a drum // tension mechanism.

The drive drum 6 is driven by the drive 12. The front pair of levers has sliders 13, which move along the guides I. The last pair of levers 1 carries the sliders 15. In the sliders, the rod 16 with the wheel 17 is attached. The slide 15 is equipped with a latch 18. Guides 14 iMoryT tilt in relation to the conveyor frame by a tilt mechanism 19 mounted on a frame 20.

The tensioning mechanism is a motor 21, which, through a friction clutch 22 and a self-braking worm gear 23, drives the drum //.

The conveyor works as follows.

Before the start of operation, the rod 16 with the wheel 17 is pushed onto the bottom of the car body, for which the tilt mechanism 19 turns the guide M clockwise.

When the length of the conveyor is convenient for operation, its drive is turned on, and the tape 4 begins to move the load. If it is necessary to increase the length of the conveyor, the latch 18 is released, the engine 21 rotates the drum 11, reducing

tensioning the rope 10 and the tape 4. When the tape is tensioned, the frame, under the influence of the weight of the levers and the parts that they carry, is moved apart until the tension is not tensioned again.

After the frame is extended by the desired amount, the latch 18 clamps the slide 15, fixing the length of the conveyor, after which the tensioning mechanism 21 is turned on in the opposite direction. The carriage 9 additionally tightens the belt 4. The tension of the belt is determined by the slip moment in the friction clutch 22. After the engine 21 is disconnected, the belt tension does not decrease, since the worm gear 23 due to self-braking can transmit torque only from the engine.

After the belt is tensioned, the drive 12 is turned on. If it is possible to work with a small belt tension, then the operation on additional belt tension by the engine is no longer possible.

In order to reduce the length of the conveyor, the latch 18 is released, the engine is stirred, the carriage 9 increases in the direction of increasing the distance between the drums 7 and 8, reducing the length of the tape in the working area of the conveyor. Under the tension of the belt, the frame is folded to the desired size, after which the retainer is clamped.

A sliding conveyor allows for large changes in the length of the conveyor with a small length of the stationary part and can be used in various types of loading and unloading operations with material or bulk goods, for example, when unloading or loading long bodies, vans, etc.

Subject invention

A telescopic belt conveyor containing an extending frame in the form of articulated levers forming a lever mechanism of the Nurenberg type of scissors, on which roller-supports are fixed,

supporting tape, and tape drive, characterized in that, in order to ensure the self-movement of the conveyor frame, the roller supports under the load branch of the tape are attached to additional levers hinged to the upper joints of the frame.

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