Governor assembly for elevator system, elevator safety system and elevator system
AssigneeOtis Elevator Company
InventorZhiren Liu
Life of this patent
Estimating the term…
Abstract
An overspeed governor assembly for an elevator system, an elevator safety system, and an elevator system. The overspeed governor assembly comprises an overspeed governor, a linkage provided to enable the overspeed governor to associate with a safety device of the elevator, when an elevator car overspeed is occurring, to trigger the safety device to perform safety measures, and at least one torsion spring coupled between a sheave and a centrifugal mechanism in the overspeed governor for providing a pre-set load, and the centrifugal force formed by the centrifugal mechanism when the elevator car overspeed is occurring, is greater than the pre-set load, for triggering the safety device via the linkage.
Claims11
An overspeed governor assembly for an elevator system, comprising:
- an overspeed governor;
- and
- a linkage provided to enable the overspeed governor to associate with a safety device of the elevator, when an elevator car overspeed is occurring, to trigger the safety device to perform safety measures;
- characterized in that the overspeed governor comprises at least one torsion spring coupled between a sheave and a centrifugal mechanism in the overspeed governor for providing a pre-set load, and a centrifugal force formed by the centrifugal mechanism when the elevator car overspeed is occurring, is greater than the pre-set load for triggering the safety device via the linkage;
- wherein the centrifugal mechanism is mounted, via at least one shaft, on the sheave for rotating therewith, at least one of the torsion springs is fitted around at least one of the shafts and a first end and a second end of the at least one of the torsion springs are coupled to the sheave and the centrifugal mechanism, respectively;
- wherein the shaft is mounted on the side of the sheave facing the centrifugal mechanism, and an accommodating portion is provided in the outer peripheral area of the shaft, for accommodating the first end of the torsion spring;
- wherein the accommodating portion is configured as two or more slots arranged along the circumferential direction of the shaft;
- wherein the two or more slots are configured to have at least a first portion and a second portion, the first portion being different from the second portion in an axial direction and/or a radial direction of the shaft.
An overspeed governor assembly for an elevator system, comprising:
- an overspeed governor;
- and
- a linkage provided to enable the overspeed governor to associate with a safety device of the elevator, when an elevator car overspeed is occurring, to trigger the safety device to perform safety measures;
- wherein the overspeed governor comprises at least one torsion spring coupled between a sheave and a centrifugal mechanism in the overspeed governor for providing a pre-set load, and a centrifugal force formed by the centrifugal mechanism when the elevator car overspeed is occurring, is greater than the pre-set load, for triggering the safety device via the linkage;
- wherein the centrifugal mechanism is mounted, via at least one shaft, on the sheave for rotating therewith, at least one of the torsion springs is fitted around at least one of the at least one shaft and a first end and a second end thereof are coupled to the sheave and the centrifugal mechanism, respectively;
- wherein the at least one shaft is mounted on the side of the sheave facing the centrifugal mechanism, and an accommodating portion is provided in the outer peripheral area of the at least one shaft, for accommodating the first end of the torsion spring;
- wherein the accommodating portion is configured as two or more slots arranged along a circumferential direction of the at least one shaft.
Dependencies are inferred from the claim text.