Box body interlayer air cooling high thermal power differential planetary reduction box

Abstract

The invention relates to an improvement on a differential planetary reducer. A box body interlayer air cooling high thermal power differential planetary reduction box comprises a box body, an input shaft, a transmission mechanism and an output shaft, wherein the input shaft, the transmission mechanism and the output shaft are arranged in the box body and are in successive transmission. The box body interlayer air cooling high thermal power differential planetary reduction box is characterized in that a connecting part of an inner cylinder and a circular end cover is arranged in the box body, a flange of the inner cylinder is connected with the output end face of the box body, an outer circle of the input end of the circular end cover is in close fit with an inner hole of the input end of the box body, the input end face of the circular end cover and the input end of the box body are in seal connection through the same annular pad, the inner wall of the box body and the outer wall of the connecting part of the inner cylinder and the circular end cover form an interlayer, a draught fan is arranged on the lateral part of the box body, an exhaust window is arranged on the top of the box body, the input shaft is supported in the circular end cover through a bearing, the output shaft is supported in the inner cylinder through a bearing, and the transmission mechanism comprises a differential assembly and a standard planet assembly, and each assembly comprises a sun wheel, a planet wheel, a planet carrier and an inner tooth ring. The box body interlayer air cooling high thermal power differential planetary reduction box has the technical advantages that heat in the interlayer is exhausted from the exhaust window and meanwhile transferred to the uniform thin-walled cylinder of the box body to be dissipated to the outside of the box body, the heat dissipation area extends all over the box body, the structure is simple, and manufacturing cost is low.

Description

【Technical field】 [0001] The invention relates to the improvement of a differential planetary combination gear train, and relates to a box interlayer air-cooled high thermal power differential planetary reduction box. 【Background technique】 [0002] The prior art differential planetary combination reducer is mainly used in the travel reducer of construction machinery. The power of the differential planet is approximately split from the differential and quasi-planetary two ring gears in a ratio of one to three, so it has a higher load-carrying capacity than the NBD planet. [0003] The main defect of the existing technology is that: because the existing differential planetary reducer does not adopt heat dissipation measures, and only relies on natural heat dissipation, the thermal power is low, so that the user has to increase one or two models for selection, and many mechanical theories The monograph is stipulated in this way, and the result will inevitably increase the cos...

AI Technical Summary

Problems solved by technology

[0013] In order to solve the defect of low thermal power in the prior art, the purpose of the present invention is to provide a box interlayer air-cooled high thermal power differential planetary gearbox by replacing natural heat dissipation with air cooling in the interlayer of the box body

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