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A speed limiter automatic reset device

An automatic reset and speed limiter technology, applied in transportation, packaging, elevators, etc., can solve the problems of high maintenance costs and increase the number of special personnel to operate, and achieve the effects of reduced maintenance intensity, good economy, and simple program upgrades

Active Publication Date: 2019-09-13
HITACHI ELEVATOR CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Need to increase the special operation, the maintenance cost is higher

Method used

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  • A speed limiter automatic reset device
  • A speed limiter automatic reset device
  • A speed limiter automatic reset device

Examples

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Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0022] The brake action signal detector is only one of the signal detectors of the upward overspeed protection device, so when using it as an example, the brake action signal detector can be used as an example for illustration.

[0023] like figure 1 As shown, a speed governor automatic reset device includes a safety gear action signal detector 6, a brake action signal detector 3, an elevator control cabinet 1, and a speed governor electrical reset actuator 5, which are connected by a circuit, and the circuit is The electronic safety circuit is equipped with safety contacts and safety switches; it forms a detection, judgment, execution and feedback loop.

[0024] The elevator ...

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Abstract

The invention discloses an automatic resetting device of a speed limiter. The automatic resetting device comprises a safety tongs operation signal detector, an ACOP operation signal detector, an elevator control cabinet and a speed limiter electrical resetting actuation mechanism which are connected through circuits to form, detection, judgment, actuation and feedback loops. The automatic resetting device, provided by the invention, of the speed limiter can make a judgment according to a safety signal of an elevator detection device, so that an electrical device of the speed limiter can be automatically reset; existing detection signals of an elevator are fully used; no extra components are added; programs are easy to upgrade, the cost is low, and the economy is high; and manual intervention for the resetting operation of the electrical device of the speed limiter is reduced, the maintenance intensity is relieved, the maintenance cost is reduced, and the number of rescuers is decreased.

Description

technical field [0001] The invention relates to the reset of the speed limiter of an elevator, in particular to an automatic reset device for the speed limiter. Background technique [0002] According to GB7588-2003-9.9.11.2, the safety specification for elevator manufacturing and installation, if the speed limiter fails to reset automatically after the safety gear is released, an electrical safety device that complies with 14.1.2 shall To prevent the starting of the lift, but in the case specified in 14.2.1.4c)5), this device shall have no effect. [0003] It can be seen from this regulation that the sequence of speed limiter reset is: after the safety gear is reset, the speed limiter mechanical mechanism is reset, and the speed limiter electrical mechanism is reset. When the elevator descends overspeed or after the annual safety gear linkage test, the car running slowly upwards will generally reset the safety gear. However, the reset of the electrical mechanism of the sp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/04B66B5/16
Inventor 王超张景乐谢炜
Owner HITACHI ELEVATOR CHINA
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