Telescopic mechanism of pinion-and-rack container spreader

Abstract

The invention relates to a telescopic mechanism of a pinion-and-rack container spreader. The telescopic mechanism comprises a main beam, a front middle beam, a rear middle beam, a front end beam and a rear end beam, wherein the front middle beam is arranged at the front end of the main beam, the rear end of the front middle beam is connected with the main beam by plugging and in telescopic fit with the front end of the main beam, the front end beam is arranged at the front end of the front middle beam and in telescopic fit with the front middle beam; the rear middle beam is arranged at the rear end of the main beam, and the front end of the rear middle beam is connected with the mean beam by plugging and in telescopic fit with the rear end of the main beam; the rear end beam is arranged at the rear end of the rear middle beam and in telescopic fit with the rear middle beam; and the maim beam is provided with a motor and a motor reducer, and a gear and rack drive mechanism is arranged between the motor reducer and the end beam. The gear and rack drive mechanism is reasonable in design, and convenient to maintain. The defects such as oil leak, high failure rate, complex and difficult maintenance and the like of hydraulic telescopic container spreaders are overcome.

Description

technical field [0001] The invention relates to a telescoping mechanism of a rack and pinion container spreader. Background technique [0002] The hydraulic telescopic container spreader uses oil cylinders, oil pumps, and valve stations to work. Because the container spreader is often subjected to shock and vibration under many working conditions, some leakage will occur in the sealing part of the hydraulic system, which will pollute the goods in the box, especially the open container, the pollution problem is particularly serious, and the leakage of the hydraulic system It is also difficult to avoid, and the oil pipeline extends in all directions and is intricate, which brings great difficulties to maintenance. [0003] In order to avoid the above confusion, many enterprises have turned to mechanical chain telescopic container spreaders, but this spreader also has many shortcomings. Because the mechanically drives the sprocket chain to perform telescopic movement, the amou...

AI Technical Summary

Problems solved by technology

Because the container spreader is often subjected to shock and vibration under many working conditions, some leakage will occur in the sealing part of the hydraulic system, which will pollute the goods in the box, especially the open container, the pollution problem is particularly serious, and the leakage of the hydraulic system It is also unavoidable, and the oil pipeline extends in all directions and is intricate, which brings great difficulties to maintenance

[0003] In order to avoid the above-mentioned confusion, many enterprises turn to mechanical chain telescopic container spreaders, but this spreader also has many shortcomings. Because the mechanically drives the sprocket chain to perform telescopic movement, the amount of wear is relatively large, and the failure rate of the mechanism is also high. At the same time, due to the impact of wear on positioning accuracy, it is also more difficult in structural maintenance

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