Additional brake

A technology of brakes and brake discs, applied in escalators, transportation and packaging, etc., can solve the problems of unstable braking speed and braking distance of additional brakes, large fluctuation range of friction plates, and high price of friction plates

Active Publication Date: 2014-04-09
HITACHI ELEVATOR GUANGZHOU ESCALATOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional additional brakes for escalators or moving walks need to install friction plates on the two sliding surfaces of the brake disc, and use disc springs to compress the friction plates. When braking, use the dynamic friction force generated by the relative movement of the friction plates and the brake disc When stopping an escalator or moving walk, since the friction coefficient of the friction plate fluctuates greatly in the state of oil and no oil, once the lubricating oil on the chain enters the surface of the friction plate, it is easy to cause the braking speed of the additional brake. The distance from the brake is unstable, and there are potential safety hazards; and the price of the friction plate is high, and the cost is relatively high

Method used

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Embodiment Construction

[0025] Embodiments of the present invention are described in detail below in conjunction with accompanying drawings:

[0026] Such as figure 1 , figure 2 , image 3 As shown, an additional brake includes a drive sprocket 100, a brake disc 200, a pressure plate 300, a brake block 400, and a trigger assembly 500, and the brake disc 200 is arranged between the drive sprocket 100 and the pressure plate 300 , the pressure plate 300 is pressed on the brake disc 200, and is connected with the drive sprocket 100 through the locking assembly 600, the brake disc 200 is provided with a bump 210, and the brake block 400 is passed through the trigger assembly 500 The action remains engaged or disengaged with the bump 210 .

[0027] In this embodiment, additional brakes are added. During braking, the trigger assembly 500 is used to control the engagement of the brake block 400 with the protrusion 210, so that the brake disc remains stationary, and the drive sprocket 100 and the pressure...

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Abstract

The invention discloses an additional brake which comprises a driving chain wheel, a brake disc, a pressing disc, a brake block and a triggering component. The brake disc is arranged between the driving chain wheel and the pressing disc which is pressed on the brake disc, and the pressing disc is connected with the driving chain wheel through a locking component. A protruding block is arranged on the brake disc. The brake block is connected with the triggering component. The brake block and the protruding block are kept in a meshing or separate state through action of the triggering component. According to the additional brake, during braking, the brake block and the protruding block are controlled to be meshed through the triggering component, so that the brake disc is kept static, the driving chain wheel and the pressing disc move relative to the brake disc respectively under the effect of inertia force, finally braking is achieved through kinetic friction force generated on a matching face, when braking is not carried out, the triggering component controls the brake disc to be separated from the protruding block, under the effect of the locking component, the driving chain wheel, the brake disc and the pressing disc operate synchronously, and the additional brake has the advantages to being simple and compact in structure, convenient to arrange and adjust, low in cost, high in assembling efficiency and the like.

Description

technical field [0001] The invention relates to the technology of escalators and moving walks, in particular to an additional brake. Background technique [0002] The traditional additional brakes for escalators or moving walks need to install friction plates on the two sliding surfaces of the brake disc, and use disc springs to compress the friction plates. When braking, use the dynamic friction force generated by the relative movement of the friction plates and the brake disc When stopping an escalator or moving walk, since the friction coefficient of the friction plate fluctuates greatly in the state of oil and no oil, once the lubricating oil on the chain enters the surface of the friction plate, it is easy to cause the braking speed of the additional brake. The distance from the brake is not stable, and there is a potential safety hazard; and the price of the friction plate is high, and the cost is relatively large. Contents of the invention [0003] Based on this, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B29/00
Inventor 李勇勇竹本啓辅
Owner HITACHI ELEVATOR GUANGZHOU ESCALATOR
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