Otis Elevator Company

Zhengbao Shi

Min Wang

Yong Zhao

Randall S Dube

Ye Li

Zhihuan Man

A remote triggering device, an overspeed governor assembly and an elevator system are provided. The remote triggering device includes: an actuator seat mounted on a fixed bracket and rotatable between a first position and a second position; an actuator disposed on the actuator seat and having an action end movable between a retracted position and an extended position; and a reset lever extending from the actuator seat; wherein in a case that the centrifugal mechanism of the overspeed governor assembly rotates in a first direction corresponding to ascending of an elevator car, when the action end of the actuator moves to the extended position, the centrifugal mechanism of the overspeed governor assembly contacts the action end of the actuator and drives the actuator seat to rotate from the first position toward the second position, and the reset lever rotates with the actuator seat.

Remote triggering device, overspeed governor assembly and elevator system

An actuator, a remote triggering apparatus, a governor, and an elevator. The actuator includes: a mandrel, the mandrel having a proximal end and a distal end, and the mandrel being driven to move from a contraction position toward an actuation position; a mandrel sleeve; and a shell, the shell defining a channel, wherein the actuator further includes at least one sliding member, and when the mandrel moves from the contraction position toward the actuation position, the at least one sliding member is located at a first radial position where the mandrel is joined to the mandrel sleeve, such that the mandrel sleeve can move along the channel together with the mandrel; and wherein at the actuation position, the at least one sliding member moves outward radially to a second radial position where the mandrel sleeve is joined to the shell, thus locking the mandrel sleeve.

Actuator, remote triggering device, governor assembly and elevator

A speed governor assembly and an elevator system. The speed governor assembly includes: a sheave; a centrifugal mechanism mounted on the sheave and rotating together with the sheave; an overspeed protection switch at a first distance from a radial outer side of the centrifugal mechanism; a core ring disposed coaxially with the sheave; and a triggering arm rotating together with the core ring; wherein the centrifugal mechanism engages with the core ring and drives the core ring and the triggering arm to rotate when the sheave reaches a second speed, and the rotation of the triggering arm can contact and trigger the overspeed protection switch.

Governor assembly and elevator system

An overspeed protection switch, an overspeed governor assembly and an elevator system are provided. The overspeed protection switch includes: a trigger member, which is in an untriggered position when the overspeed governor assembly is in normal operation, and which is capable of rotating to a triggered position from the untriggered position when being toggled by a centrifugal mechanism of the overspeed governor assembly in case of overspeed of the overspeed governor assembly; at least one protrusion connected to the trigger member and rotating together with the trigger member; a reset lever which is rotatable along an axial axis from an idle position to act on one of the at least one protrusion to drive the trigger member to return to the untriggered position from the triggered position; and an actuation device which, in response to a reset command, acts on the reset lever to rotate the reset lever.

Overspeed protection switch, overspeed governor assembly and elevator system

A governor assembly and an elevator system. The governor assembly includes: a stationary shaft; a sheave arranged on the stationary shaft and rotatable on the stationary shaft; a core ring arranged on one side of the sheave on the stationary shaft and associated with a safety apparatus; and a lock mechanism including a plurality of rockers, wherein each rocker includes a first end pivotably connected to the sheave and a second end connected to a respective roller, the plurality of rockers are connected by connecting rods such that the plurality of rockers can be pivoted synchronously between a first position where the respective roller is separated from the core ring and a second position where the respective roller is jointed to the core ring, and in the second position, each roller rotates along with the sheave to drive the core ring, thus triggering the mounting apparatus.

An overspeed protection switch, an overspeed governor assembly and an elevator system are provided by the present disclosure. The overspeed protection switch includes: a trigger device including a trigger member and at least one protrusion, wherein the trigger member is capable of rotating to a triggered position from an untriggered position when being toggled, and the at least one protrusion is connected to the trigger member and rotates together with the trigger member; an actuation device including an action end capable of performing a linear movement; and a reset member which is connected with the action end of the actuation device and is translated with the linear movement of the action end of the actuation device so as to push one of the at least one protrusion to drive the trigger member to return to the untriggered position from the triggered position.

The present invention provides a core ring assembly for an elevator governor, a governor and an elevator system, wherein the core ring assembly comprises: a first portion and a second portion of a core ring which are axially arranged, the first portion and the second portion of the core ring having contact surfaces therebetween; and a pressure generation mechanism for generating a pressure between the first portion and the second portion of the core ring, wherein the first portion of the core ring rotates by receiving an actuation torque from an over-speed actuating mechanism, and the second portion of the core ring rotates with the first portion of the core ring by virtue of friction of the contact surfaces and enables a safety activating module. The core ring assembly provided by the embodiment of the present invention has a peak torque limiting function and a compact structure.

Ring assembly for elevator governor, governor and elevator system

The present invention provides a remote trigger device, a speed limiter assembly having the same and an elevator. The remote trigger device for the speed limiter assembly comprises: an actuator; and a rotating component, the rotating component being capable of rotating around a rotating axis in a rotating plane, the rotating component being actuated by the actuator to rotate from an idle position to a working position. During rotation of the speed limiter assembly, at the idle position, the rotating component is kept separated from an over-speed locking mechanism of the speed limiter assembly, and at the working position, the rotating component toggles a trigger member of the over-speed locking mechanism of the speed limiter assembly to trigger the speed limiter assembly. The structure of the remote trigger device according to the present invention is compact and simple.

Remote triggering device, overspeed governor assembly and elevator

The present invention provides a governor assembly and an elevator, wherein the governor assembly includes: a support; a first axle rotatably supported by the support; a main pulley rotatably mounted on the first axle relative to the first axle; a first guide pulley near the main pulley; a first safety device actuated by the rotation of the first axle; and a centrifugal tripping mechanism which enables, when a rotating speed of the main pulley exceeds a preset value, the main pulley and the first axle to be coupled and rotate together. The governor assembly according to the present invention is of a compact structure and is applicable to a small mounting space.

Governor assembly and elevator

The present invention relates to the technical field of an elevator, and provides a governor of an elevator. The governor of the present invention is provided with a reset push part which is disposed on a ratchet wheel and is used for resetting the governor from a second state to a first state, wherein the reset push part and a pawl of the governor are set in such a manner that when a rope sheave rotates in a direction, the reset push part pushes the pawl to reset the pawl to a position corresponding to the first state.

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Shanghai, China

Zhengbao Shi