Planetary roller screw transmission mechanism capable of achieving self-adaptive temperature control
A technology of planetary roller and transmission mechanism, applied in the direction of transmission, transmission parts, mechanical equipment, etc., can solve the problems affecting the service life of planetary roller screw transmission mechanism, thermal deformation of planetary roller screw transmission mechanism, Column screw drive mechanism damage and other problems, to achieve the effect of easy installation, good self-adaptation, and lower temperature rise
Inactive Publication Date: 2019-03-22
NORTHWESTERN POLYTECHNICAL UNIV
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Abstract
The invention discloses a planetary roller screw transmission mechanism capable of achieving self-adaptive temperature control. The planetary roller screw transmission mechanism comprises a nut (9). Inner gear rings (10) in rotary butt joint with the nut (9) are arranged at the two ends of the nut (9). An end cover (7) in rotary connection fit with the nut (9) is arranged at one end of the nut (9). Multiple rolling columns (8) arranged in an annular array manner are arranged in the nut (9). Straight teeth are machined at the two ends of each rolling column (8). The straight teeth are engaged with the inner gear rings (10) at the two ends of the nut (9). The rolling columns (8) are circumferentially and evenly distributed around a hollow lead screw (14) through holders (11). By means of a cooling circulating system, cooling liquid flows through the hollow lead screw through a liquid outlet pipe to take away part of heat generated by the lead screw, part of heat generated by the nut is taken away by an end cover wedge hole and a nut annular groove, and temperature increase generated by friction during work of the planetary roller screw transmission mechanism can be effectively reduced.
Application Domain
GearingGear lubrication/cooling
Technology Topic
Self adaptiveRoller screw +4
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