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elevator braking device

A technology for elevator braking and braking position, which is applied in the field of elevators and can solve the problems of large space, single function, occupation, etc.

Active Publication Date: 2021-08-03
SHANGHAI MITSUBISHI ELEVATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this solution is that it can only be used for braking in an emergency state, and it cannot inhibit the shaking caused by the change of the car load during leveling, and the function is single
The trigger mechanism disclosed in the example in its embodiment is complex and takes up a large space

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] The elevator 10 with braking device among the present invention, as figure 1 As shown, a car 1 and a braking device 3 are included, and a T-shaped guide rail 2 is fixedly arranged in the running channel 20 of the car 1 . The car 1 is movably arranged in the guide rail 2 and can run up and down along the guide rail 2 . The upper and lower parts of the car 1 are provided with guides 1a and 1b respectively, and the car braking device 3 is arranged on the car 1 .

[0081] figure 2 Schematic diagram of the braking device. The brake device 3 includes a support frame 32, an upper stopper 32a, a lower stopper 32b, an upper guide 32c, a lower guide 32d and a rear stopper 32e are fixedly arranged on the support frame 32, and the brake assembly 30 is movably arranged On the support frame 32 , the upper guide 32c cooperates with the mounting seat guide groove 47a and the elastic guide groove 48a, and the lower guide 32d cooperates with the elastic guide groove 48b, so that the b...

Embodiment 2

[0096] An anti-swaying device for a car, comprising the braking device in any one of the foregoing embodiments.

[0097] It also includes a first control system for suppressing the shaking when the car stops.

[0098] The first control system collects one or more of the following signals:

[0099] Car position signal, car door switch state signal, car door switch command signal, car running command signal, car speed signal, through the single or combined conditions of these signals, determine whether the elevator car is in the leveling door opening state . For example, a single signal of the car door opening command is issued, or a combination of the signal that the car position is in the door opening area and the signal of the car door open state, or the car running command indicates the arrival of the landing, or the car speed signal shows the car speed There are many signal combinations of zero and the open state of the car door, and there are many similar combinations, w...

Embodiment 3

[0106] A device for preventing accidental movement of the car when the door is opened, comprising the brake device in any of the foregoing embodiments.

[0107] It also includes a second control system, which makes the braking device in a second braking state to generate a second braking force when the emergency braking condition is met. It is used to prevent accidental movement of the car when the door is open.

[0108] The braking conditions described are as follows:

[0109] The second control system detects the car position signal, the car door state signal and the landing door state signal. When the car door is in the open state or the landing door is in the open state, when the upward or downward movement of the car exceeds the threshold, the The second control system judges that the car has unexpectedly moved at this time, and controls the actuator to cut off the power. Under the action of the second elastic element 52, the friction member 56 presses the guide rail, th...

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PUM

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Abstract

The invention discloses an elevator brake device, which comprises: a support frame fixedly arranged on the elevator car; a brake assembly which is arranged in the support frame and can move horizontally relative to the support frame; The assembly includes a friction assembly, which is arranged on one side of the elevator guide rail and can move horizontally relative to the brake assembly; a rotatable brake, which is arranged in the support frame, and the rotatable brake It includes at least three braking positions on its surface; the rotatable braking member is arranged on the other side relative to the elevator guide rail, and the braking position of the rotatable braking member can be matched with the friction assembly co-clamping the elevator guide rails to brake the elevator; a drive assembly that drives the friction assembly and the rotatable brake toward or away from the elevator guide rails. The invention can not only realize the braking in two directions, but also can restrain the shaking of the car caused by people or objects in the car entering or leaving the car during leveling.

Description

technical field [0001] The invention relates to the field of elevators, in particular to an elevator braking device. Background technique [0002] During the operation of the elevator, there may be an accident that the elevator car falls or goes down over the speed. At this time, safety gear is usually used to deal with it, while the traditional safety gear is generally triggered by the speed limiter. Because the speed governor-tensioner system has problems such as complex structure, large space occupation of the machine room, and easy noise generation, a large number of technical solutions for braking devices with electromagnetic actuators have appeared in recent years. Self-triggering is realized under signal control, thereby canceling the governor-tensioner system. For this kind of braking device using electromagnetic actuator, generally, when the elevator is running normally, the electromagnetic force of the electromagnetic actuator is balanced with the force of the ela...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/16B66B5/00B66B5/02
CPCB66B5/0025B66B5/0031B66B5/005B66B5/02B66B5/16
Inventor 徐若育倪云浩杨银国冯洋
Owner SHANGHAI MITSUBISHI ELEVATOR CO LTD