13-08-2014 дата публикации
Номер: CN103979312A
Автор:
HU ZUOZHONG,
ZHANG JIANFEI,
YE JINGJING,
WU JIANMEI,
WU GANG,
XU YI,
HU GUANGRONG,
XIE JIANWEI,
JIA HELIN,
MA YONG,
QU GUO
Принадлежит:
The invention discloses a spiral lifting device for plastic silkworm rearing trays, which comprises a motor, a worm gear reducer, a bottom board, a supporting board, a driving bevel gear, a driven bevel gear, a ladder tooth screw, a two-way push ball bearing, a lower bearing block, an upper bearing and an upper bearing block, a nut slider, a rack, a lifting pull rod, a pull rod connecting piece, a bearing slide rod, a pull rod positioning seat, a guide rail, a slope, an upper travel switch and a lower travel switch, wherein the motor is arranged at one corner of the top end of the rack, and a crankshaft of the motor is directly connected with a worm gear reducer; the driven bevel gear is sleeved on the upper end of the ladder tooth screw, and a driving chain wheel (4-1) is positioned below the driven bevel gear and is coaxially sleeved with the driven bevel gear; the middle of the ladder tooth screw is sleeved with the nut slider, and the nut slider is clamped in a right-angled groove of ...
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