Support Structure for a Ball Screw
AssigneeHiwin Technologies Corp.
InventorsLung-Yu CHANG, Ying-Ju Lin
Life of this patent
Estimating the term…
Abstract
A support structure for a ball screw includes a base, two pivot seats mounted on the base, a screw disposed between the two pivot seats, at least one guide rail fixed on the base, a first guide block fixed on the base and provided with a first slanting surface, a second guide block fixed on the base and provided with a second slanting surface, a support seat slidably mounted on the guide rails and located below the screw, a nut unit sleeved on the screw and slidably disposed on the guide rails, and a drive assembly fixed at the nut unit. The support structure for a ball screw has a simple structure, a low maintenance cost and a longer service life.
Claims10
A support structure for a ball screw comprising:
- a base;
- two pivot seats mounted on the base and located a distance from each other;
- a screw disposed between the two pivot seats;
- at least one guide rail fixed on the base and located one side of the screw;
- a first guide block fixed on the base and located between the two pivot seats, and provided with a first slanting surface;
- a second guide block fixed on the base, located between the two pivot seats, and provided with a second slanting surface located toward the first slanting surface;
- a support seat slidably mounted on the guide rails and located below the screw, the support seat including a base portion located above the first and second guide blocks, at least one support fork portion located on the base portion to support the screw, and a slot formed in the base portion, the slot including a first transverse section, a first engaging section connected to the transverse section and located corresponding to the first slanting surface, a connecting section connected to the first engaging section and located corresponding to the first and second slanting surfaces, a second engaging section connected to the connecting section and located corresponding to the second slanting surface, and a second transverse section connected to the second engaging section;
- a nut unit sleeved on the screw and slidably disposed on the guide rails, the nut unit being located above the base portion of the support seat and including a bottom surface located toward the slot;
- a drive assembly fixed at a bottom surface of the nut unit and arranged in a direction perpendicular to the screw, the slide block unit including a guide pin which is inserted in the slot and able to slide along the first transverse section, the first engaging section, the connecting section, the second engaging section and the second transverse section, the guide pin being capable of abutting against the first and second engaging sections, and capable of being guided by the first and second slanting surfaces to disengage from the first and second engaging sections.
Dependencies are inferred from the claim text.