SU1532765A1 - Prestressed rolling-contact screw-and-nut gearing - Google Patents

Abstract

The invention relates to mechanical engineering and can be used in drives of machine tools, robots, etc. The purpose of the invention is to increase reliability. On the screw 1, the nuts 2 and 3 are installed with the help of balls 4. The nuts 2 and 3 have flanges 5, on the ends of which there are made multiple winding surfaces. To create the necessary tension, the nut 2 is fixed, loosen the screws 10 and turn the nut 3. This causes axial and angular displacement of the nuts along the screw surfaces on each of the flanges 5. After creating the necessary tension, it is fixed with screws with a conical head 10 3 il.

Description

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On Lig 1, a partial section meredation is shown in general view in Fig. 2 - i in Fig. 1 in Fig. 3 a technical drawing of a nut.

The screwdriver, the rolling screw nut with preload, contains screw 1, two nuts 2 and 3 interact with it, mapi i 4 are located in the grooves of screws 1 and nuts 2 and 3. The adjacent ends of the nuts 2 and 3 are laid out flanges 5 with multiple screw but upper mi 6 and 7 A device for liver patching is made in the form of threaded holes 8 on one of the flanges and coaxially 9 holes drilled on the flanges and screws 0 with a conical head mounted in from the top of the flanges 5

Transmission screw-nut with pre-tensioning works in the following way

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Tension is performed on screw 1, when nut 2 is fixedly fixed, screws 10 are loosened, and torque is applied to nut 3 (using a wrench inserted into a hole in the flange). At this, axial and angular displacement of nuts 2 occurs and 3 and the necessary tension is created. After that, screws 10 with a conical head fix the installed tension.

Claims (1)

Invention Formula A rolling screw nut with a preload, containing a screw, two nuts interacting with it, balls located in the grooves of the screw and nuts, and a tensioning device, characterized in that, in order to improve reliability, The ends of the nuts to each other are made with flanges with multiple screw surfaces, and the device for providing tension is made in the form of screws with a conical head installed in coaxial holes that are made in flanges qm z Fig.Z