Rail fastenings are an important element of the top structure of a way which are directly intended for transfer of the vertical and horizontal loadings received from the rolling stock. The fastening of rails in the degree is defined by reliability, parameters of geometry and rigidity of a relsovoykolea that provides safe conditions of interaction of a railway way and the rolling stock.
Intermediate rail fastenings are intended for interaction and connection of rails with the subrail basis that in turn will provide electrical insulation of rail threads on uchastkakhzheleznodorozhny to a way with automatic lock-out and electrodraft. The intermediate fastening provides stability of width of a rail track, reduction and transfer of loading from a rail to a cross tie and further on a bed.
Intermediate rail fastenings
Intermediate rail fastenings for reinforced concrete cross ties can be distributed on lining and bespodkladochny (without metal linings between a cross tie and a rail). Also intermediate rail fastenings can be distributed on separate rail fastenings and unseparable rail fastenings.
The separate rail fastening - fastening of a lining to a cross tie and fastening of a rail to podkladkeosushchestvlyatsya by a fastening of CB.
The unseparable rail fastening - when a lining to a cross tie and a rail to a lining fastens the general prikrepitel.
Widespread railway fastening for wooden cross ties is lining kostylnoye a fastening. Dlyazhelezobetonny cross ties - a separate klemno-screwed connection of kb. As fastening to a cross tie share on kostylny, bolted and shurupny (the CD lining).
Butt fastenings are intended for joining a rail among themselves. Butt rail skrepleniyapodrazdelyatsya on joints bolted, welded and kleeboltovy. Joints bolted and kleeboltovy soyedinyayutsyazheleznodorozhnym slips which in turn have four or six openings (a slip 2P, a slip 1P).
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