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Speed reducer for gate drive and drive device
The embodiment of the invention provides a speed reducer for gate drive and a drive device comprising the speed reducer, wherein the speed reducer comprises a planetary reduction unit, an output assembly and a machine enclosure. The speed reducer is characterized in that the planetary reduction unit comprises a barrel-shaped connecting part, a third ball bearing, a fourth ball bearing and a fifth ball bearing; the barrel-shaped connecting part is provided with inner teeth which are bulged towards the radial-direction inner side; the third ball bearing supports the upper part of a carried part in the radial direction relative to the machine enclosure, and the outer wheel of the third ball bearing is fixed on the inner peripheral surface of the machine enclosure; the fourth ball bearing supports the upper part of a connecting part relative to the carried part, and the outer wheel of the fourth ball bearing is fixed on the connecting part; the fifth ball bearing supports the lower part of the connecting part in the radial direction relative to the machine enclosure, the outer wheel of the fifth ball bearing is fixed on the inner peripheral surface of the machine enclosure, and the inner wheel of the fifth ball bearing is fixed on the connecting part. By virtue of the speed reducer and the drive device of the embodiment of the invention, the rotation of the connecting part can be realized without additionally arranging a ball bearing, and therefore, the product cost is reduced, the operation efficiency is improved, and miniaturization of the speed reducer is realized.
Speed reducer for gate drive and drive device
The embodiment of the invention provides a speed reducer for gate drive and a drive device comprising the speed reducer, wherein the speed reducer comprises a planetary reduction unit, an output assembly and a machine enclosure. The speed reducer is characterized in that the planetary reduction unit comprises a barrel-shaped connecting part, a third ball bearing, a fourth ball bearing and a fifth ball bearing; the barrel-shaped connecting part is provided with inner teeth which are bulged towards the radial-direction inner side; the third ball bearing supports the upper part of a carried part in the radial direction relative to the machine enclosure, and the outer wheel of the third ball bearing is fixed on the inner peripheral surface of the machine enclosure; the fourth ball bearing supports the upper part of a connecting part relative to the carried part, and the outer wheel of the fourth ball bearing is fixed on the connecting part; the fifth ball bearing supports the lower part of the connecting part in the radial direction relative to the machine enclosure, the outer wheel of the fifth ball bearing is fixed on the inner peripheral surface of the machine enclosure, and the inner wheel of the fifth ball bearing is fixed on the connecting part. By virtue of the speed reducer and the drive device of the embodiment of the invention, the rotation of the connecting part can be realized without additionally arranging a ball bearing, and therefore, the product cost is reduced, the operation efficiency is improved, and miniaturization of the speed reducer is realized.
Speed reducer for gate drive and drive device
TOMOYUKI OTSUKA (author) / XIANGYE XU (author) / DONGSHAN SUN (author) / LINHUA PAN (author)
2015-10-14
Patent
Electronic Resource
English
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