Central controlled wedge type belt type conveyer broken-belt protecting device

Abstract

The wedge type belt breaking protector for concentrated control of belt conveyer is mounted on the channel steel of the middle frame in belt conveyer. It includes one support rack, two wedge brake blocks inside wedge shaped runner separately on two sides of the rack, fixed brake blocks over the wedge brake blocks, one linkage connecting two wedge brake blocks, and one linear reciprocating driver with movable end connected to the linkage. Normally, the idle side of the belt is between the fixed brake blocks and wedge brake blocks without contact; and in case of belt breaking, the linear reciprocating driver makes the wedge brake blocks move simultaneously along wedge shaped runner to clamp the belt between the fixed brake blocks and the wedge brake blocks.

Description

Technical field [0001] The invention relates to a broken belt protection device for a belt conveyor, in particular to a belt broken protection device for a wedge type belt conveyor which can be centrally controlled. Background technique [0002] At present, most of the technical solutions for broken belt protection are poor in implementability and immature. For example, a patent (ZL03205939.6) proposes a broken belt catcher using eccentric rollers to brake the belt, but its working reliability is poor and its service life is poor. In short, practice has proved that this technology is immature. Recently, a new type of broken belt protector (a patent application has been filed, the application number is: 200520070689.1) has been announced in the scientific and technological literature, which uses wedge blocks to self-lock and brake the sliding belt. Out of the limit pin, the wedge-shaped brake block contacts the belt under the action of its own weight and spring force. Driven...

AI Technical Summary

Problems solved by technology

[0003] 1. It can only be used on the upper belt conveyor, and cannot be used on the lower belt conveyor

This device relies on the broken belt to drive the brake mechanism to act on the brake belt, and the running direction of the belt of the down-belt conveyor is the same as that of the broken belt, so it cannot be used.

[0004] 2. There is no guarantee that multiple protective devices installed along the belt will act synchronously

When catching the belt, some devices may not participate in the braking, resulting in the failure of the catching brake

[0005] 3. Inconvenient maintenance and repair

For a purely mechanical broken belt protection device, it is difficult to test the reliability and flexibility of the operation during normal maintenance and overhaul.

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