FIELD: oil and gas producing industry.
SUBSTANCE: invention relates to hole drilling equipment. Proposed draw-works brake contains rim, rubber-cord cylinder and brake shoes lined with friction linings enclosing brake pulley over perimeter. Brake consists of separate parts, each provided with independent pneumatic controls. For this purpose said rim is made up of autonomous detachable parts with corresponding rubber-cord cylinder and shoes. Brake is furnished with remote controlled stop spring-loaded pin installed on frame of draw-works for fixing and releasing of draw-work drum.
EFFECT: possibility of repair of brake without demounting draw-works.
1 dwg
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