摘要:
A traction sheave (10; 40) for engaging an elevator rope (24), the traction sheave comprising:
a traction surface for engaging and driving the elevator rope; and a surface coating applied to the traction surface, wherein the coating has a hardness of greater than approximately 40 HRC.
摘要:
An elevator load bearing member assembly includes at least one roughened surface (46) on a polyurethane jacket (44) wherein the polyurethane jacket comprises an amide-rich layer on at least one surface. In one example, mechanical roughening is used to roughen the surface (46) after the jacket has been extruded onto tension members (42). Other examples include chemically roughening the jacket surface. The roughened jacket surface improves friction characteristics of a load bearing member assembly.
摘要:
An elevator load bearing member assembly includes at least one roughened surface (46) on a polyurethane jacket (44) wherein the polyurethane jacket comprises an amide-rich layer on at least one surface. In one example, mechanical roughening is used to roughen the surface (46) after the jacket has been extruded onto tension members (42). Other examples include chemically roughening the jacket surface. The roughened jacket surface improves friction characteristics of a load bearing member assembly.
摘要:
A traction sheave (10; 40) for engaging an elevator rope (24), the traction sheave comprising:
a traction surface for engaging and driving the elevator rope; and a surface coating applied to the traction surface, wherein the coating has a hardness of greater than approximately 40 HRC.