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Over-speed regulator device for elevator system

An elevator system and regulator technology, applied in the field of overspeed regulator devices, can solve problems such as insufficient deceleration, and achieve the effects of saving buffers, reducing impact size, and saving space

Inactive Publication Date: 2008-05-07
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] A disadvantage of the hitherto known mechanical overspeed governor device and electronic overspeed governor device disclosed in USP 6,173.813 is that the governor device is operable only at overspeed based on the rated speed of the elevator system or only at zero speed, which Can be found in several hitherto known mechanical overspeed governor devices
However, in other situations where the deceleration at the extremities of the path of the car is insufficient or insufficient, conventional overspeed governor devices are not in a position to prevent or inhibit overspeed, thereby creating a significant disadvantage

Method used

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  • Over-speed regulator device for elevator system
  • Over-speed regulator device for elevator system
  • Over-speed regulator device for elevator system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] figure 1 A mechanical overspeed governor device or governor according to a first embodiment of the invention is shown.

[0065] Referring to the accompanying drawings, a pendulum-type overspeed governor device 2 (hereinafter also simply referred to as a "regulator 2") is provided on an elevator car 1 . One end of a regulator cable 5 is fixed to the ceiling of an elevator hoistway. The adjuster cable 5 is tensioned on the adjuster sheave 3 via reversing pulleys 6a and 6b, and the other end is fixed to a mass or weight 7, whereby a tension is applied to the adjuster cable 5. Reversing pulleys 6a and 6b are mounted on the elevator car 1 for guiding the cables 5 .

[0066] When the rocker 4 prevents or blocks the rotation of the sheave 3, a torque is applied to all overspeed governor devices under the action of traction. In this case, the adjuster 2 is rotatable about a pivot point 12 . At this point in time, even when the sheave 3 rotates freely, a spring 13 is used t...

Embodiment 2

[0077] Fig. 2 is a block diagram showing an overspeed governor system according to a second embodiment of the present invention. The overspeed governor system according to this immediate embodiment of the invention is implemented as a combination of hitherto known conventional overspeed governor devices and additionally provided electronic governors. The conventional parts of an overspeed governor system, shown in FIG. (The regulator can be located eg in the machine room, in the elevator hoistway or on the roof of the car).

[0078] The regulator cable 18 is secured to a safety device mounted on the elevator car 16 . When the moving speed of the elevator car 16 reaches the preset overspeed of the regulator 17, the regulator 17 acts, whereby the regulator cable 18 is pulled by the regulator 17 to realize the upward or downward safety installed on the elevator car 16. actuation of the device. As the actuator 17, a conventional actuator equipped with an actuator actuator consi...

Embodiment 3

[0098] Fig. 3 is a block diagram showing the construction of an elevator system equipped with an overspeed governor device according to a third embodiment of the present invention. In FIG. 3, components identical or equivalent to those in FIG. 2 described above are denoted by the same reference numerals, and their repeated descriptions are omitted.

[0099] In the case of the system now considered, a measured distance L output from the distance measuring sensor 51 is directly used in the electronics without using the measured acceleration α as input information. Apart from this difference, the system according to the instant embodiment of the invention is basically similar to the system according to the first embodiment of the invention described above (see figure 1 ).

[0100] The distance L can be measured using laser or radar technology. The electronic circuit is designed to determine the first overspeed value Vs1 and the second overspeed value Vs2 directly from the meas...

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PUM

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Abstract

An overspeed governor apparatus of an elevator sstem for detecting an overspeed of an elevator car travelling in an upward or downward direction for thereby actuating an upward or downward safety gear. The overspeed is determined as a function of position of the elevator car. The overspeed can be prevented with high reliability.

Description

technical field [0001] The present invention relates to an overspeed governor arrangement (also called "overspeed governor" or simply "governor") for an elevator system. Background technique [0002] In an elevator system, it is common to use an overspeed governor device. The overspeed governor device acts as an independent safety system for the elevator car parallel to the drive system. [0003] Presently known overspeed governors are put into operation for the occurrence of two situations, which will be described below. [0004] first case [0005] When a fault occurs in the drive system of an elevator system, the elevator car tends to move at overspeed. [0006] Overspeed governors are designed to detect this overspeed, thereby stopping or shutting down the operation of the drive system. In this situation, if the shutdown operation of the drive system is insufficient, the overspeed governor will engage the safety device (also known as the safety mechanism), thereby e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/04B66B5/14B66B5/06
CPCB66B5/046B66B5/044B66B5/04B66B5/06
Inventor A·布罗维尔斯
Owner MITSUBISHI ELECTRIC CORP
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