The invention provides a hoisting machine of an elevator, which can reduce the working space required for replacing a rope wheel. The elevator hoist is provided with: a sheave support body (3) having a first rotating part (802) having an outer peripheral surface (806) formed in a cylindrical shape and a second rotating part (803) having an outer peripheral surface (807) formed in a cylindrical shape, the first rotating part and the second rotating part being disposed adjacent to each other, the diameter (D1) of the outer peripheral surface of the first rotating part being larger than the diameter (D2) of the outer peripheral surface of the second rotating part; and a sheave (4) having a first fitting part (403) in which a first hole (406) into which the first rotating part is fitted is formed, and a second fitting part (404) in which a second hole (407) into which the second rotating part is fitted is formed, the outer peripheral surface of the first rotating part and the inner peripheral surface of the first hole being in surface contact with each other, and the outer peripheral surface of the second rotating part and the inner peripheral surface of the second hole being in surface contact with each other.
本发明提供一种电梯的曳引机,能够缩小为了更换绳轮所需的作业空间。该电梯的曳引机具备:绳轮支承体(3),其具有外周面(806)形成为圆柱面形状的第1旋转部(802)以及外周面(807)形成为圆柱面形状的第2旋转部(803),第1旋转部以及第2旋转部彼此相邻地配置,第1旋转部的外周面的直径(D1)比第2旋转部的外周面的直径(D2)大;以及绳轮(4),其具有第1嵌合部(403)以及第2嵌合部(404),第1嵌合部形成有供第1旋转部嵌入的第1孔(406),第2嵌合部形成有供第2旋转部嵌入的第2孔(407),第1旋转部的外周面与第1孔的内周面彼此面接触,第2旋转部的外周面与第2孔的内周面彼此面接触。
Elevator traction machine
电梯的曳引机
2023-04-21
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS |