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Speed limiter

A speed limiter and component technology, applied in the field of elevators, can solve the problems of instability, ratchet device instability, affecting the speed of electrical triggering, etc., and achieve the effect of reducing the volume

Pending Publication Date: 2019-09-06
宁波元吉智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing speed limiter sheave and ratchet are two separate parts, and the number of overall parts of the speed limiter increases. The current speed limiter ratchet device is connected by welding process, and the instability in the welding process will lead to Instability of the ratchet mechanism
In addition, when the speed limiter sheave reaches a certain speed, the electrical switch will be triggered first, and there is an angle between the screw on the pituitary and the electrical switch lever before triggering, which affects the speed of electrical triggering

Method used

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] Such as figure 1 , 2 As shown, the present invention provides a speed governor, which has the advantages of small size, light weight, and effective speed limitation and braking. The speed governor includes: a first bracket 1 , a sheave assembly 2 , a pendant assembly 3 , an electric switch 4 , a block assembly 5 , a pawl assembly 6 , and a brake assembly 7 .

[0028] The first bracket 1 is used to provide a basis for the installation and fixing of oth...

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Abstract

The invention provides a speed limiter which comprises a rope wheel assembly, hammer assemblies, an electrical switch, a stop block assembly, a pawl assembly and a brake assembly. The speed limiter ofthe invention incorporates the functions of a rope wheel and a ratchet wheel device, and the welding process of the existing ratchet wheel device is eliminated; the overall number of components and parts of the speed limiter is decreased by 43%; the overall volume of the speed limiter is decreased by 22.5%; the angle between one meshing point and the next meshing point of the rope wheel or a pawlis 20 degrees; hammers make rectilinear motion during speed-limit operation; when the hammers trigger the electrical switch, no included angle exists between screw nails on the hammers and a deflector rod of the electrical switch; and the electrical triggering speed cannot be affected.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to a speed governor. Background technique [0002] The speed limiter is one of the safety control components in the elevator safety protection system. When the elevator is running for any reason, the car may overspeed or even fall, and all other safety protection devices do not work. live. [0003] However, the existing speed limiter sheave and ratchet are two separate parts, and the number of overall parts of the speed limiter increases. The current speed limiter ratchet device is connected by welding process, and the instability in the welding process will lead to Instability of the ratchet mechanism. In addition, when the speed limiter sheave reaches a certain speed, the electrical switch will be triggered first, and there is an angle between the screw on the pituitary and the electrical switch lever before triggering, which affects the speed of electrical triggering. There...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/04B66B5/06B66B5/24
CPCB66B5/044B66B5/06B66B5/185B66B5/0087
Inventor 本村和彦
Owner 宁波元吉智能科技有限公司