Bidirectional self-adjusting first belt sweeper

Abstract

The invention discloses a bidirectional self-adjusting first belt sweeper. The bidirectional self-adjusting first belt sweeper comprises a scraper support, a scraper pressing mechanism and a rack pressing mechanism. The scraper support comprises a scraper and a support body; the scraper pressing mechanism comprises a torsional spring and a pressing sleeve; a main rack shaft is sleeved with the torsional spring; the pressing sleeve is fixed to the main rack shaft; the support body and the pressing sleeve are in limiting clamping connection with one end of the torsional spring and used for applying torque to the torsional spring; the rack pressing mechanism comprises a sliding frame, a sliding block and an elastic mechanism; an inclined sliding way is arranged in the sliding frame; the sliding block is arranged in the sliding way in a sliding manner; the higher end of the sliding way is close to the head wheel position of a belt; the elastic mechanism is fixed to the sliding frame and elastically supports the sliding block so that the sliding block can slide upwards along the sliding way in an inclined manner; and the sliding block is fixedly connected with the main rack shaft. Compared with the prior art, by means of the displacement compensation manner, the service life of the sweeper is prolonged, and the potential safety hazards that due to abrasion of the scraper of the sweeper, the sweeper fails, and even the scraper turns over are eliminated.

Description

technical field [0001] The invention relates to the technical field of belt cleaners, in particular to a bidirectional self-adjusting first belt cleaner. Background technique [0002] When the belt conveyor is running with materials, due to the inertia and adhesion, some fine particles do not fall into the funnel of the machine head from the head drum, but gradually scatter on the surface increasing drum and the bottom with the belt returning with the material. On the ground behind the parallel rollers, causing material accumulation, such as figure 1 shown. [0003] In order to solve the problem of belt material on the return journey, it is necessary to install various types of belt cleaners on the head of the belt conveyor. Among them, the traditional first belt cleaner is a device that can effectively remove the particulate material on the surface of the return belt. Its cleaning principle Such as figure 2 shown. [0004] The traditional first belt cleaner is to insta...

AI Technical Summary

Problems solved by technology

[0007] As the scraper blade wears out, the worn scraper rotates counterclockwise around the fixed axis of the main frame, causing the contact surface between the scraper and the belt to move down. When it moves down to 5 cm below the horizontal line of the head wheel, the cleaning effect will gradually weaken until it fails.

[0008] 2) The scraper blade is ground, which increases the running resistance of the belt conveyor

[0009] With the continuous wear of the scraper blade, the scraper rotates counterclockwise around the fixed axis of the main frame, the wear surface of the scraper becomes wider and wider, the contact area with the belt continues to expand, and the frictional resistance increases significantly, resulting in an increase in the load of the belt conveyor, which directly affects The belt conveyor equipment is running normally and stably

[0010] 3) The scraper is seriously worn, and there is a hidden danger of scraper overturning

[0011] With the continuous wear of the scraper, the angle of counterclockwise rotation of the scraper around the fixed axis of the main frame becomes larger and larger. When the scraper is nearly perpendicular to the surface of the belt, the scraper and the main frame are easily turned over by the belt. The cleaner will be seriously deformed, and even the deformed cleaner will scratch the belt, causing serious equipment accidents and economic losses

[0012] 4) The scraper of the cleaner fails quickly and the operating cost is high

[0013] In order to avoid the weakening of the cleaning effect due to scraper wear, the increase of frictional resistance with the belt, and the possible flipping of the scraper, which may affect the normal and stable operation of the cleaner and belt conveyor equipment, when the scraper blade is worn, it is necessary to replace the scraper in time. The replacement frequency of the first belt cleaner scraper is faster, which increases the operation and maintenance cost of the cleaner

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