Distributed brake device of downward conveying conveyor belt and automatic control method
A technology of belt conveyor and braking device, applied in the direction of conveyor control device, conveyor, conveyor objects, etc., can solve the problem of downtime, unable to dynamically adjust the running speed of the conveyor belt, unable to actively prevent the conveyor belt from slipping and flying. Accidents and other problems, to achieve the effect of low input cost, reduced equipment downtime, and good braking effect
Pending Publication Date: 2018-09-18
CHINA UNIV OF MINING & TECH +1
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Problems solved by technology
The advantage of the catcher is that it can catch the conveyor belt in time after the broken belt or speeding accident occurs, so as to prevent casualties and equipment damage, which belongs to passive safety protection; the disadvantage is that it cannot dynamically adjust the running speed of the conveyor belt, and cannot Actively prevent the conveyor belt from slipping and speeding accidents, which may easily cause unnecessary downtime
Method used
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[0037] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.
[0038] like figure 1 and figure 2 As shown, the lower belt conveyor includes a base 1 , a horizontal idler roller 7 and a carrying idler roller set 9 .
[0039] The base is set on the frame 8.
[0040] The horizontal rollers are distributed horizontally above the base along the conveying direction of the conveyor belt.
[0041] The number of load-bearing roller groups is equal to the number of horizontal rollers, and they correspond one-to-one; each set of load-bearing roller groups includes two inclined rollers, and the two inclined rollers are symmetrically arranged on the two sides of the horizontal rollers in a figure-eight shape. side.
[0042] The lower belt conveyor in the present invention can carry out automatic transmission with an inclination greater than 18°.
[0043] like figure 1 and Figure 5 As shown,...
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The invention discloses a distributed brake device of a downward conveying conveyor belt and an automatic control method. The distributed brake device comprises a control box, a speed sensor and brakedevices, wherein the speed sensor is used for detecting the transmission speed of the conveyor belt; each brake device comprises an upper brake gate, a lower brake gate and a pressure sensor; the pressure sensor is used for detecting the pressure supported by a lower brake gate plate; the lower brake gate comprises a lower brake gate plate and a lower friction block; the upper brake gate comprises an upper brake gate plate, an upper friction block, a support and an electric-hydraulic pusher. The device monitors the speed of the conveyor belt in real time by means of the speed sensor. When thebelt speed exceeds a preset value, the conveyor belt is braked and is stopped in braking till the speed of the conveyor belt returns to a safe range. In addition, the brake torque of the brake devicecan be also controlled dynamically according to the speed of the conveyor belt measured by the speed sensor, so that the belt speed is adjusted dynamically, the conveyor belt is prevented from sliding and galloping actively, and the equipment downtime can be shortened effectively.
Description
technical field [0001] The invention relates to the technical field of down-belt conveyors for mines, in particular to a distributed braking device and an automatic control method for down-belt conveyors. Background technique [0002] Due to the large inclination angle of the working face of the down-conveyor belt conveyor, it is easy to cause overspeeding and slipping of the conveyor belt due to the gravity and running inertia of the coal during transportation, making the operation of the conveyor unstable and even a speeding accident, which is harmful to the coal mine. Mining poses serious safety hazards. In addition, the large inclination angle in the present invention means that the inclination is greater than 18°. [0003] At present, the problem of overspeeding of the conveyor belt is mainly solved by hydraulic braking system and electromagnetic braking system braking the roller. However, when the friction between the conveyor belt and the roller reaches the limit, th...
Claims
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IPC IPC(8): B65G43/00B65G43/04B65G15/30B65G23/26
CPCB65G15/30B65G23/26B65G43/00B65G43/04B65G2203/0291
Inventor 刘同冈杨秀春冯剑邱先明陈义强刘书进吕鑫马骁王金香李超
Owner CHINA UNIV OF MINING & TECH