| 摘要 |
FIELD: machine building.SUBSTANCE: invention relates to the machine building, namely to electric drives (102) with the internal device for load application for use in regulating valves of pipelines. The electric drive having internal device for the load application contains casing (136, 138) making cavity for the driven system (144) installation, and drive shaft (148) functionally connected with the driven system. The driven system rotation in the first rotation direction ensures the drive shaft movement in one straight direction, and the driven system rotation in second rotation direction ensures the drive shaft movement in direction opposite to the first straight direction. Pressing element (186) is functionally connected with the driven system (144) such, that at least one part of the driven system moves in axial direction to the pressing element, deforming this pressing element when the drive shaft (148) achieves the limit position, thus ensuring the drive shaft load, when the electric power to the electric drive (102) is not supplied.EFFECT: improved design.18 cl, 10 dwg |
