The invention discloses an elevator speed governor. A main shaft is supported by a second one-way bearing and a third one-way bearing. A rope wheel is connected with the main shaft through a first one-way bearing. A first detection mechanism body is fixed on the side face of the rope wheel and keeps rotating synchronously with the rope wheel. A second detection mechanism body is fixed on the main shaft and keeps synchronous rotation with the main shaft. The locking directions of the first one-way bearing, the second one-way bearing and the third one-way bearing are opposite. When the first detection mechanism body detects that the rotating speed of the rope wheel is greater than a first angular speed set value, a first pawl triggers a first safety switch; and when the second detection mechanism body detects that the rotating speed of the main shaft is greater than a second angular speed set value, a second pawl triggers a second safety switch. The elevator speed governor is more stable in operation, low in operation noise and small in axial installation size.
本发明公开了一种电梯限速器,其主轴通过第二单向轴承及第三单向轴承支撑;其绳轮通过第一单向轴承与主轴连接;其第一检测机构体固定绳轮的侧面与绳轮保持同步旋转;其第二检测机构体固定到主轴并与主轴保持同步旋转;第一单向轴承与第二单向轴承、第三单向轴承锁死方向相反;当第一检测机构体检测到绳轮转速大于第一角速度设定值,使第一棘爪触发第一安全开关;当第二检测机构体检测到主轴转速大于第二角速度设定值时,使第二棘爪触发第二安全开关。本发明的电梯限速器,运行更平稳,运行噪声小,轴向上的安装尺寸小。
Elevator speed governor
电梯限速器
2021-08-24
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS |