| 摘要 |
The invention relates to a ball screw (10) with a threaded spindle (12), a nut (14), rolling bodies (16) and at least one deflecting device (18, 20), wherein the threaded spindle (12) is displaceable by rotation, and wherein the deflecting device comprises an inner first body part (18) and an outer second body part (20), which body parts together form a deflecting channel (22), wherein the deflecting channel (22) has two tubular ends (24, 26) which are connected to each other via a transfer region (28), wherein the tubular ends (24, 26) of the deflecting channel are in each case formed by mutually complementary partial tubular sections (30, 32, 34, 36) of the body parts (18, 20), and wherein a sleeve (40) surrounding the nut (14) is provided, the deflecting device (18, 20) sits in an opening (42) in the nut (14), the deflecting device (18, 20) projects radially beyond the outer lateral surface of the nut (14) in a relaxed state when the sleeve (40) is absent and, in the presence of the sleeve (40), said sleeve exerts a radially inwardly directed force on the deflecting device (18, 20). |
| 主权项 |
1. A ball screw (10) comprising a threaded spindle (12), a nut (14), a plurality of rolling bodies (16) and at least one deflection device (18, 20), wherein the threaded spindle (12) is displaceable relative to the nut (14) in an axial direction by rotation relative to the nut (14), and the deflection device comprises a radially inner first body part (18) and a radially outer second body part (20), which together form a deflection channel (22) for the rolling bodies,
the deflection channel (22) has two substantially tubular ends (24, 26) that form rolling body openings, which are interconnected via a transfer region (28), the first body part (18) in the transfer region (28) provides a radially inner delimitation of the deflection channel (22), the second body part (20) in the transfer region (28) provides a radially outer delimitation and side delimitations of the deflection channel (22), the tubular ends (24, 26) of the deflection channel are each formed by complementary, partial-tube portions (30, 32, 34, 36) of both the first body (18) and the second body (20), and a sleeve (40) which surrounds the nut (14) is provided, the deflection device (18, 20) is positioned in an opening (42) in the nut (14), the deflection device (18, 20), when relieved of tension in the absence of the sleeve (40), protrudes radially beyond an outer lateral surface of the nut (14), and, when the sleeve (40) is present, it exerts a radially inwardly directed force on the deflection device (18, 20). |
