Differential planetary reduction gear for bridge crane

Abstract

The invention discloses a differential planetary reduction gear for a bridge crane. The differential planetary reduction gear for the bridge crane comprises a reduction gear frame; a main motor is arranged on the outer side of one end of the reduction gear frame; an output shaft hole frame is installed at the other end of the reduction gear frame; standby motors are symmetrically installed on two sides of the main motor; a power shaft of the main motor is connected with a transmission shaft through a flange plate; standby power shafts of the standby motors are embedded and clamped into standby shafts; input gears are installed on the standby shafts and connected with transmission gears through transition gears; the transmission shaft is seeved with the transmission gears and connected with an output shaft through a three-level planetary gear set; the output shaft penetrates through the output shaft hole frame, extends to the outer side of the reduction gear frame and is fixedly installed on one side face of the three-level planetary gear set through a bearing pedestal plate; the three-level planetary gear set is connected with a gear ring on the inner wall of the reduction gear frame; and the transmission efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of cranes, in particular to a differential planetary reduction device for bridge cranes. Background technique [0002] Among the mechanical equipment, the bridge crane is a lifting device that is placed horizontally over the workshop, warehouse and stockyard for material lifting; because its two ends are located on tall cement columns or metal supports, it is shaped like a bridge. The bridge frame of the bridge crane runs longitudinally along the rails laid on the elevated sides on both sides, which can make full use of the space under the bridge frame to lift materials without being hindered by ground equipment; it is the most widely used and the largest number of hoisting machinery , but in the prior art, most of the differential planetary reduction gears for bridge cranes used in hoisting machinery are ordinary traditional planetary reduction gears, which have the following disadvantages: [0003] (1) Du...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of the existing technical solutions, the present invention provides a differential planetary reduction device for bridge cranes, which not only solves the problem of using ordinary traditional planetary reducers, but also greatly increases the differential gear used for bridge cranes. The usability of the planetary reduction gear increases construction efficiency, provides greater convenience for construction, reduces the use of motors, and is convenient for installation and use, which can effectively solve the problems raised by the background technology

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