CURRENT COLLECTOR Russian patent published in 2008 - IPC B60L5/24 

FIELD: railway transport.

SUBSTANCE: invention relates to current collectors of electric rolling stock. Suspension of current collector has frame, upper, lower and lifting frames with shafts and lifting springs and adjustable cranks made in form of housing with plate and clamp with adjusting holes. Clamp can be shifted, and distance between adjusting holes is found from expressions: on clamp t_c=(1+N_r) x ▵R where t_c is hole pitch on clamp determined depending on sizes of fixing pin or bolt, mm; N_r is number of hole rows, (pieces); ▵R is recommended pitch of change of crank radius, mm; on plate t_p=(2+N_r) x ▵R, and displacement of rows of plate relative to each other is determined from expression t_r=N_r x ▵R. Arms of arrangement of axis of adjusting holes on plate relative to center of bushing and from axis of corresponding holes on clamp to center of holes of connection of lifting spring on clamp are not equal to each other.

EFFECT: provision of reliable operation of current collector owing to stability of pressure of current collecting devices onto current wire at change of height of its hanging and possibility of use of different stiffness springs.