Small tooth difference reduction gearbox with interlayer air cooling box body supported by zinc base alloy bearings

Abstract

A small tooth difference reduction gearbox with an interlayer air cooling box body supported by zinc base alloy bearings comprises the box body, an input shaft, a transmission mechanism and an output shaft. The small tooth difference reduction gearbox with the interlayer air cooling box body supported by the zinc base alloy bearings is characterized in that a connecting piece of an inner cylinder and a circular end cover is arranged in the box body, the inner cylinder is connected with the box body, the input end of the circular end cover is in close fit with an inner hole in the input end of the box body, the circular end cover and the box body are connected through an annular disk, the inner wall of the box body and the outer wall of the connecting piece of the inner cylinder and the circular end cover form an interlayer, an exhausting window is arranged on the top of the box body, and a draught fan is arranged on the side portion of the box body; the transmission mechanism comprises planet gears, an inner gear ring and eccentric bearings; an abrasion-resistant ring on the output shaft is supported in the corresponding zinc base alloy bearing, a sponge with a T-shaped cross section is arranged in the output shaft, the sponge in the output shaft and a shaft hole constitute an oil storage cavity Q, a zinc base alloy bearing is arranged in a load balance ring, and accordingly an output shaft zinc base alloy bearing simple support structure is formed. The small tooth difference reduction gearbox has the advantages that the structure is simple, and manufacturing cost is low; the air capacity is adjusted to enable thermal power to be close to mechanical power; alloy bearing lubrication is reliable, bearing cost is lowered by 60%-80%, and bearing steel can be saved by 50%-70%.

Description

【Technical field】 [0001] The present invention relates to the improvement of the K-V-H mechanism (N type) less tooth difference technology in the field of general planetary technology, in particular to the improvement of the involute less tooth difference reduction box, a kind of small tooth difference reduction gear supported by zinc-based alloy bearings in a sandwich water-cooled box box. 【Background technique】 [0002] The general planetary transmission mainly includes two types: 2K-H negative sign mechanism (NGW type) and K-V-H mechanism (N type), and K-V-H mechanism (N type) includes cycloid and involute with less tooth difference. [0003] The study found that the existing universal planetary transmission technology has two deficiencies: [0004] (1) The output shaft is supported by rolling bearings, and the cost is much higher than that of sliding bearings, especially for high-power and high-torque models: the basis for this can be found in "Design and Manufacture of...

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Problems solved by technology

[0018] Purpose of the present invention: to solve the prior art (1) the output shaft is supported by rolling bearings, and the cost is much higher than that of sliding bearings, especially for high-power and high-torque models; (2) the gearbox itself does not have a heat dissipation function, so the thermal power is low defect

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