Heavy plate feeder

Abstract

The invention relates to a heavy plate feeder. The heavy plate feeder comprises a frame, an upper wheel supporting unit, a lower wheel supporting unit, a front sprocket driving unit, a rear sprocket tensioning unit, a conveying mechanism and a feed guide and protection unit. A lower supporting plate is welded to a conveying groove of the conveying mechanism. The upper surface of the supporting plate, the upper surface of an outer side plate and the upper surface of an inner side plate are on the same plane to form a continuous support surface. Solid supporting wheels sleeve support shafts of the upper wheel supporting unit and the lower wheel supporting unit and are provided with shaft holes in the centers. Therefore, the problems that bearings are in serious abrasion and blocked due to impact damage, serious wear abrasion and not-in-time lubrication of the upper wheel supporting unit and the lower wheel supporting unit and accordingly the situation of machine down for troubleshooting is caused are solved, the problem that a lower supporting wheel is blocked due to the fact that the surface of the lower supporting wheel is abraded with deep grooves caused by structural defects of an existing conveying trough is also solved, the normal operating cycle of the product is prolonged, and sections and portions can be replaced separately for greatly reducing maintenance costs and maintenance difficulty.

Description

technical field [0001] The invention belongs to the technical field of apron feeders, in particular to a heavy-duty apron feeder. Background technique [0002] Apron feeder is a continuous transport machine widely used in metallurgy, mining, building materials, ports, coal and chemical industries. It is mainly used to continuously and evenly supply and transfer various bulky and highly abrasive bulk materials from storage bins or transfer hoppers to crushers, batching devices or transportation equipment. It is one of the important and indispensable equipment in ore and raw material processing and continuous production process. [0003] The operating principle of the apron feeder is that high-strength chains are used as traction parts, and the two chains bypass a pair of driving sprockets installed at the head of the machine body and a pair of tensioning sprockets at the tail of the machine body to form a closed operating circuit. Overlapping, heavy-duty conveyor troughs ar...

AI Technical Summary

Problems solved by technology

[0005] First, the upper and lower supporting wheel devices are stuck due to impact damage, lubrication failure and other failures, and they are often shut down for maintenance.

The occurrence of these failures is because the existing heavy-duty apron feeder's upper and lower supporting roller devices use rolling bearings as the slewing support parts of the supporting roller. Because the working environment of the heavy-duty apron feeder is very harsh, such as extra large The impact of materials, a large amount of dust wrapping the supporting wheel device, etc., make the rolling bearing in the supporting wheel very vulnerable to impact damage, and the dust can easily enter the inside of the bearing, causing the rolling bearing to lock

These will cause the supporting wheel to be stuck, serious wear, unstable motor current, power increase and other consequences.

[0006] Second, due to the structural defects of the existing conveying trough, the surface of the lower supporting roller is ground into a deep groove. Due to the appearance of the above-mentioned deep groove, the feeder is easy to cause the lower supporting roller to be stuck during operation, and even cause the lower supporting roller to The wheel is directly scrapped, and this problem is also the most prone to failure of the current heavy-duty apron feeder

For example, a disclosed heavy-duty apron feeder, the patent number is 03270602.2, and the accompanying drawings of the description figure 2 and image 3 , which clearly shows the structure of the existing conveying trough; that is, the existing conveying trough mainly includes the main bearing plate, the upper surface of the main bearing plate is provided with anti-shock square steel, and the lower surface of the main bearing plate is equipped with longitudinal reinforcement Ribs, transverse reinforcing ribs are installed on both sides of the longitudinal and long reinforcing ribs; an upstroke supporting plate is arranged on the lower surface of the transverse reinforcing ribs, outer plates are welded on both sides of the main bearing plate, inner plates are welded on the inner sides of the outer plates, and inner plates are welded on the outer sides. The upper surface of the plate and the upper surface of the inner plate form a plane, which is supported on the lower supporting roller device during the downstroke, because this plane is very narrow, causing the surface of the lower supporting roller to be ground into deep grooves until it is damaged

[0007] The damaged supporting wheel device in the above two problems not only has a short service life, but also is very difficult to replace due to the structural problems of the frame. It is almost necessary to disassemble the whole feeder for maintenance.

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