Speed regulators and elevator equipment having the speed regulators

Abstract

The invention provides speed regulators and elevator equipment having the speed regulators. When the speed regulator for ascending operation and the speed regulator for descending operation are respectively arranged, a large amount of time needs to be spent on the adjustment of the speed regulators. The adjustment and combination of the power supply breaking time, the speed regulator hoist cable holding time of an emergency braking device, and the like need to be conducted during the ascending operation and descending operation. One employed speed regulator comprises a descending side transmission unit which transmits the rotation of a pulley of the speed regulator to an overspeed detector when the car of the elevator is in the process of descending operation; an upper side transmission unit which transmits the rotation of the pulley of the speed regulator to the same overspeed detector when the car of the elevator is in the process of ascending operation; and a power supply breaking mechanism used for breaking the power supply when first specified overspeeds respectively set on account of the ascending direction and descending direction of the car of the elevator are reached. Thanks to the adoption of the overspeed detector of a single system, the effect of reducing the contact adjustment of the power supply breaking mechanism can be realized.

Description

technical field [0001] The present invention relates to a speed governor used in elevator equipment and elevator equipment, in particular to a speed governor capable of detecting different abnormal speeds in the ascending direction and descending direction of the elevator car and a speed governor equipped with the speed governor. Speed ​​elevator equipment. Background technique [0002] A safety device is installed in the existing elevator equipment. When the elevator car is descending or ascending at a speed greater than the specified moving speed due to an abnormality in the elevator equipment, the safety device will cause the elevator car to move at an appropriate deceleration. stop. [0003] In general, the speed detection of the ascending direction and descending direction of the elevator car is detected by a governor using a flyweight mechanism, and the governor is configured so that an endless sling wound on two pulleys Connected to the elevator car, when the elevat...

AI Technical Summary

Problems solved by technology

[0013] However, it takes a lot of time to adjust the speed governors when separately installing speed governors or overspeed detectors for ascending operation and descending operation

This is because, in order to reliably operate the safety device when the speed of the elevator car during the ascending and descending operation reaches a predetermined moving speed, that is, an abnormal speed (hereinafter referred to as "overspeed"), it is necessary to control the power supply in the operating mechanism part. It takes a lot of work time to adjust and combine the power-off timing of the disconnecting mechanism and the timing of holding the governor sling of the emergency brake device.

Similarly, when performing maintenance inspections, it is necessary to confirm the operation of the two speed governors or overspeed detectors, which takes a lot of time

[0014] In addition, when the above-mentioned two overspeed detectors or two governors are used, the volume of the device increases, so that the degree of freedom in design is limited, so it is necessary to secure a large machine room

[0015] In particular, in the technology described in Patent Document 1, since the overspeed detector for the upward movement is also operated simultaneously during the downward movement, when the overspeed detector fails, it may not be possible to reliably detect movement speed when running out of descent, so this is not preferred

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