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An emergency braking device clamped on the traction sheave of the traction machine

An emergency braking and traction machine technology, which is applied in elevators, transportation and packaging, etc., can solve problems such as unsatisfactory braking effect, and achieve the effect of good braking effect, ensuring safety, and high electrical action speed.

Inactive Publication Date: 2011-12-14
SUZHOU TORIN DRIVE EQUIP
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  • Abstract
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Problems solved by technology

The examples listed above all illustrate that no matter the existing rope gripper clamping the elevator steel wire rope or the brake block that directly stops the traction sheave, after the brake block contacts the steel wire rope or the traction sheave, it is used to The inertia of moving bodies such as weights and traction wheels produces reverse friction to stop the car. This starts from the brake device receiving a signal → moves to contact with the wire rope or traction wheel → then has sufficient friction There is a certain hysteresis in the movement process of the braking car, and the braking effect is not ideal, and there are potential safety hazards

Method used

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  • An emergency braking device clamped on the traction sheave of the traction machine
  • An emergency braking device clamped on the traction sheave of the traction machine
  • An emergency braking device clamped on the traction sheave of the traction machine

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Embodiment Construction

[0017] In order to enable the examiners of the patent office, especially the public, to understand the technical essence and beneficial effects of the present invention more clearly, the applicant will describe in detail below in conjunction with the accompanying drawings in the form of embodiments, but none of the descriptions of the embodiments is a description of the present invention. Restriction of the inventive solution, any equivalent transformation made according to the concept of the present invention which is only in form but not in substance shall be regarded as the scope of the technical solution of the present invention.

[0018] see figure 1 and combine figure 2 , an emergency braking device clamped on the traction sheave of the traction machine, the traction machine includes a traction machine body 2, a traction wheel 3 arranged on the traction machine body 2 and an emergency braking device , the structure of the traction machine body 2 is not subject to...

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Abstract

The utility model relates to an emergency braking device clamped on a traction sheave of a traction machine, which belongs to an upward overspeed protection device of an elevator car. The traction machine includes a traction machine body, a traction wheel on the traction machine body, and an emergency braking device. It is characterized in that: the emergency braking device adopts an electromagnetic caliper disc brake, and the electromagnetic caliper The disc brake is installed on the horizontal installation foot or the vertical installation foot of the traction machine body, and is used for clamping the traction wheel at a position corresponding to the traction wheel. Advantages: good sensitivity, timely response, excellent braking effect; not only easy to install, but also saves installation space; the effective area of ​​braking is large, which can ensure the safety of elevator operation.

Description

technical field [0001] The invention relates to an upward overspeed protection device for an elevator car, in particular to an emergency braking device clamped on a traction sheave of a traction machine. Background technique [0002] GB7588-2003 "Elevator Manufacture and Installation Safety Code" stipulates that when the elevator is arranged, the car's upward overspeed protection device must be installed. This device is used to quickly stop the traction sheave or wire rope or counterweight to stop the elevator in an emergency car, or directly stop the car. Most of the bridge car upward overspeed protection devices currently on the market are rope clamps that clamp the steel wire rope and brake blocks that directly act on the traction sheave. Their actions from opening to stopping the car are relatively slow, with poor sensitivity. The response is slow and there are certain defects. [0003] For example, the China Utility Model Patent Authorization Announcement No. CN275821...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/18
Inventor 张鹤曹建文房文娜曹宇沈佳炜
Owner SUZHOU TORIN DRIVE EQUIP
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