Supporting and transmitting system for winding drum for hoisting mechanism

Abstract

The invention relates to a supporting and transmitting system for a winding drum for a hoisting mechanism. The supporting and transmitting system comprises a winding drum supporting part, a parallel shaft reduction gearbox part and a planetary transmission part; the winding drum supporting part adopts a needle bearing for supporting the winding drum, an inner ring of the needle bearing is integrated with a box body of a parallel shaft reduction gearbox, and an outer ring of the needle bearing is integrated with the winding drum; the parallel shaft reduction gearbox part adopts three-stage hardtooth surface helical gears for transmission, and the parallel shaft speed reduction gearbox part is provided with motor connectors; the planetary transmission part is fixed by a planet carrier, a gear ring of the planetary transmission part is in interference fit with the winding drum, an input end of the planetary transmission part is provided with a sun gear located at the center of a reduction gearbox, an output end of the planetary transmission part is provided with the gear ring installed on the winding drum, and the sun gear of the planetary transmission part is connected with an output shaft of the parallel shaft reduction gearbox. The supporting and transmitting system for the winding drum has the advantages that structure is simple in design, the size is small, the speed ratio is high, the performance is excellent, and assembly is easy.

Description

technical field [0001] The invention belongs to the technical field of hoisting equipment, and in particular relates to a drum support transmission system for a hoisting mechanism. Background technique [0002] The hoisting mechanism of a traditional crane is the core component of the crane, which is a key component related to the performance and main parameters of the crane. At present, the transmission of the reel of the lifting mechanism at home and abroad is mainly that the output shaft of the reduction box is directly connected with the reel through the reel coupling or spline (gear). The reel support of the domestic lifting mechanism is divided into two forms: one It is directly supported by the output shaft bearing of the gearbox, which requires the bearing of the gearbox to have sufficient carrying capacity; the other is to make an additional support device outside the gearbox to support the reel, which is very difficult for processing and assembly. Craftsmanship br...

AI Technical Summary

Problems solved by technology

Usually, in order to meet the requirements of lifting speed and low-speed bearing capacity requirements, the reduction box needs to choose a large speed ratio, which undoubtedly increases the manufacturing cost of the lifting mechanism.

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