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Brake control deivce for elevator

A brake control and elevator technology, which is applied in transportation, packaging, elevators, etc., can solve the problems of slow movement, elevator start time, stop time lag, etc.

Inactive Publication Date: 2010-06-23
HITACHI LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This control method is the same as the above-mentioned Patent Document 1. When the brake is released and the brake is applied, the winding current is gradually increased and decreased. Therefore, there is a brake release action or a slow brake application action, and the elevator travel start time Or the problem of docking time lag

Method used

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  • Brake control deivce for elevator
  • Brake control deivce for elevator
  • Brake control deivce for elevator

Examples

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Embodiment Construction

[0071] Embodiments of the present invention will be described below with reference to the drawings.

[0072] Figure 1 to Figure 4 One embodiment of the brake control device for elevators according to the present invention is shown. figure 1 is an overall configuration diagram of an elevator brake control device according to an embodiment of the present invention, figure 2 yes figure 1 The specific excitation circuit of the electromagnetic winding, image 3 yes means figure 1 Timing diagram of brake action, Figure 4 Indicates the relationship between the winding current and the electromagnet gap and the holding position of the winding current when the brake is released and when the brake is applied. Figure 5 to Figure 7 It is an illustration diagram of a winding current command and a current pattern during a brake release operation or a brake application operation. Figure 5 Indicates the two-step stepped current command and current mode when the brake is released,...

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PUM

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Abstract

Provided is an elevator brake control device which can control the increase of the winding current when not needing applying brake after the brake is released and the action hysteresis is not happen, thereby can reduce the collide sound during braking. In the elevator brake control device, a winding current energizing circuit (15) comprises: a winding current instruction unit (24) for instructingthe current flow electromagnetism windings (11a, 11b); a current detecting unit (25) for detecting the current of the electromagnetism windings; a winding current controlling unit (26) for inputting the instruction for the winding current instruction unit and the detection value for the current detecting unit in order to control the current of the electromagnetism windings; and a winding current supply unit (22) for making the current of the winding flow by the winding current controlling unit. When the brake is released, the winding current is controlled by any one of one to three ladder shaped current instructions, and when the brake is applied, the winding current is controlled by two ladder shaped current instructions.

Description

technical field [0001] The invention relates to a braking control device for an elevator that obtains braking force by pressing a brake pad against a brake drum. Background technique [0002] Conventionally, there is known a brake control device for an elevator that obtains a braking force by pressing a brake shoe against a brake drum. For example, in the brake control devices for elevators disclosed in Patent Documents 1 to 5, when the brake is released or the brake is applied, or during the time period from the brake release to the brake application, the electromagnetic winding is activated according to the command. (DC electromagnet) is energized or disconnected to drive the brake pad integrally formed with the movable piece. [0003] In addition, for example, Patent Document 6 proposes a scheme for regulating a DC power supply. [0004] Patent Document 1: Japanese Patent Application Laid-Open No. 09-267982 [0005] Patent Document 2: Japanese Patent Application Laid-O...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B1/32
Inventor 伊藤正信五十岚章智松浦厚
Owner HITACHI LTD