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

A technology of planetary gearbox and high thermal power, which is applied in transmission boxes, transmission components, transmission devices, etc., can solve the problem of low thermal power and achieve the effects of large thermal power, long service life and simple structure

CN104728349AInactive Publication Date: 2015-06-24吴小杰
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-06-24
Estimated Expiration
Not applicable · inactive patent

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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.
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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...

Examples

specific Embodiment approach

[0034] [Specific embodiments] The present invention will be described in detail below in conjunction with the accompanying drawings:

[0035] refer to figure 1 . A box interlayer air-cooled high thermal power differential planetary gearbox, comprising a box 1 and an input shaft 15, a transmission mechanism and an output shaft 5 arranged in the box 1 and sequentially driven, characterized in that:

[0036] The box body 1 is provided with an inner cylinder 2 and a round end cover 6 connector, the inner cylinder 2 flange is connected to the output end surface of the box body 1, and the outer circle of the input end of the round end cover 6 is connected to the box body 1 The inner hole of the input end is closely matched, the input end face of the round end cover 6 is sealed and connected with the round end face of the input end of the box body 1 with the same ring disc 14, and the inner cylinder 2 and the outer surface of the round end cover 6 are provided with cooling ribs;

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