Wheel convenient to replace and provided with self-lubricating rims

Abstract

The invention discloses a wheel convenient to replace and provided with self-lubricating rims, and relates to hoisting machinery. Due to factors such as wheel deflection, a crane gnaws a rail to operate, especially when an operating mechanism is high in working level, the service life of a rim is far shorter than that of a wheel tread, and therefore a wheel is scrapped too early due to rim abrasion. A structural form that the rims are replaceable is adopted, no matter a single-rim wheel or a double-rim wheel, the rim on each side is divided into a plurality of sections of arcs, the rims are fixed on a wheel body by bolts, and a certain proportion of solid lubricant is embedded in the rim friction surfaces, so that the lubricating condition of a friction pair formed by the rims and the sidesurface of a steel rail is improved. The service life of the rims and the steel rail is prolonged, the friction resistance of crane operation is reduced, when the rim abrasion reaches the scrap degree, the rims can be replaced under the condition that a wheel set is not disassembled, the rims are made of high-strength wear-resisting plates, a heat treatment manufacturing procedure is omitted, therims and the wheel body are manufactured separately, and die forging of the wheel body becomes possible.

Description

technical field [0001] The invention relates to the technical field of hoisting machinery, in particular to a wheel which is easy to replace and has a self-lubricating wheel rim. Background technique [0002] Currently, crane wheels are often scrapped due to rim wear. Due to factors such as wheel deflection, when the crane is running, the wheel rim and the rail rub against each other in 70% to 80% of the stroke, especially when the friction is severe (commonly known as rail gnawing), and the working level of the crane's operating mechanism is M7 or M8. , resulting in a large difference between the life of the wheel tread and the life of the rim. The life of the wheel tread can exceed 2 to 3 years, but the life of the wheel rim is only 1 year or even a few months. The friction between the wheel rim and the rail not only causes the wheel to be scrapped in advance, but also shortens the service life of the rail and increases the running resistance of the crane. [0003] At pr...

AI Technical Summary

Problems solved by technology

In fact, metallurgical bridge cranes used in steel mills are mostly key equipment in the process, and the loss of maintenance due to shutdown is far greater than the value of the wheel set itself. Often, the entire wheel set is replaced to shorten the maintenance time, even if other parts in the wheel set are still relatively damaged. Long service life, which is contrary to the concept of green development

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