CN106006267A - Contracting brake force self-detection and contracting brake failure protection method for elevator and contracting brake force self-detection and contracting brake failure protection system for elevator - Google Patents

Contracting brake force self-detection and contracting brake failure protection method for elevator and contracting brake force self-detection and contracting brake failure protection system for elevator Download PDF

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CN106006267A
CN106006267A CN201610502922.1A CN201610502922A CN106006267A CN 106006267 A CN106006267 A CN 106006267A CN 201610502922 A CN201610502922 A CN 201610502922A CN 106006267 A CN106006267 A CN 106006267A
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elevator
brake
brake force
torque
car
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CN106006267B (en
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李刚
周庆
胡峻滔
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Wuxi Invt Elevator Control Technology Co Ltd
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Wuxi Invt Elevator Control Technology Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0087Devices facilitating maintenance, repair or inspection tasks
    • B66B5/0093Testing of safety devices

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  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Elevator Control (AREA)

Abstract

本发明公开一种电梯抱闸力自检测及抱闸失效保护方法及系统,该方法包括:在电梯抱闸打开状态下,由电梯控制及驱动器向曳引轮轿厢侧输入使轿厢和对重平衡的平衡力矩;在电梯抱闸闭合状态下,根据平衡力矩模拟电梯超载状态,计算出超载力矩,并向曳引轮轿厢侧输入超载力矩,在电梯超载状态下根据曳引轮是否转动判定抱闸力是否有效;确定是退出抱闸力自检测模式恢复对外服务还是驱动向曳引轮轿厢侧输出维持轿厢与对重平衡的平衡力矩,并报送故障告警。本发明在电梯抱闸闭合状态下,向曳引轮轿厢侧施以一定的力矩,人为或预设自检模式模拟让电梯处于超载状态,通过判断曳引轮是否有转动,从而进一步对抱闸力是否有效进行判定,简化了检测方法流程。

The invention discloses a method and system for self-detection of elevator brake force and brake failure protection. The method includes: when the elevator brake is opened, the elevator control and driver input to the side of the traction wheel car to make the car and the opposite The balance torque of heavy balance; in the closed state of the elevator brake, simulate the overload state of the elevator according to the balance torque, calculate the overload torque, and input the overload torque to the side of the traction sheave car, in the elevator overload state according to whether the traction sheave rotates Determine whether the brake force is valid; determine whether to exit the brake force self-test mode to resume external service or drive to the traction sheave car side to output the balance torque to maintain the balance between the car and the counterweight, and report a fault alarm. In the present invention, when the elevator brake is closed, a certain torque is applied to the side of the traction sheave car, and the artificial or preset self-inspection mode simulates that the elevator is in an overloaded state. Whether the brake force is valid is judged, which simplifies the detection method flow.

Description

一种电梯抱闸力自检测及抱闸失效保护方法及系统Method and system for self-detection of elevator brake force and brake failure protection

技术领域technical field

本发明属于电梯安全检测技术领域,更具体的,本发明涉及一种电梯抱闸力自检测及抱闸失效保护方法及系统。The invention belongs to the technical field of elevator safety detection. More specifically, the invention relates to an elevator brake force self-detection and brake failure protection method and system.

背景技术Background technique

随着现今社会的不断发展,电梯日益深入人们的生活中,而抱闸作为电梯安全装置起着至关重要的作用。而在长期的使用过程中,抱闸的制动闸瓦表面会因磨损导致摩擦表面出现碳化现象,从而导致硬度增大、摩擦系数降低,甚至导致抱闸失效。抱闸一旦失效,电梯也会随之失控,造成不可弥补的损失,因此,在电梯行业中,特种设备检验机构需要对电梯曳引机的抱闸力是否有效进行定期检测。With the continuous development of today's society, elevators are increasingly involved in people's lives, and brakes play a vital role as elevator safety devices. In the long-term use process, the surface of the brake shoe of the brake will be carbonized due to wear and tear on the friction surface, which will increase the hardness, reduce the friction coefficient, and even cause the brake to fail. Once the brake fails, the elevator will also lose control, causing irreparable losses. Therefore, in the elevator industry, special equipment inspection agencies need to regularly test whether the brake force of the elevator traction machine is effective.

目前,抱闸力的检测方法是通过在轿厢中放置重力砝码,达到电梯额定载荷的125%,随后在电梯曳引机抱闸打开状态下,使电梯运行;此时人为断电,造成电梯曳引机抱闸闭合,通过观察抱闸后电梯轿厢是否移动,间接对电梯曳引机抱闸力是否失效进行判断,这种检测方法繁琐复杂,且耗时耗力。At present, the detection method of the brake force is to place a gravity weight in the car to reach 125% of the rated load of the elevator, and then make the elevator run when the brake of the elevator traction machine is opened; at this time, the power is artificially cut off, causing The brake of the elevator traction machine is closed. By observing whether the elevator car moves after the brake, it is indirectly judged whether the brake force of the elevator traction machine is invalid. This detection method is cumbersome and time-consuming and labor-intensive.

发明内容Contents of the invention

有鉴于此,本发明提供了一种电梯抱闸力自检测及抱闸失效保护方法及系统,以解决现有技术中由于通过在轿厢中放置重力砝码的检测方法,而导致的检测方法繁琐复杂,且耗时耗力的问题。In view of this, the present invention provides an elevator brake force self-detection and brake failure protection method and system to solve the detection method caused by placing gravity weights in the car in the prior art. Complex, time-consuming and labor-intensive issues.

为实现上述目的,本发明提供如下技术方案:To achieve the above object, the present invention provides the following technical solutions:

一种电梯抱闸力自检测及抱闸失效保护方法,包括:A brake force self-detection and brake failure protection method for an elevator, comprising:

在电梯抱闸打开状态下,由电梯控制及驱动器向曳引轮轿厢侧输入使所述轿厢和对重平衡的平衡力矩;When the elevator brake is opened, the elevator control and driver input a balance torque to the side of the traction sheave car to balance the car and the counterweight;

在电梯抱闸闭合状态下,所述电梯控制及驱动器根据所述平衡力矩模拟电梯超载状态,计算出超载力矩,由电梯控制及驱动器向所述曳引轮轿厢侧输入所述超载力矩,在所述电梯超载状态下根据曳引轮是否转动判定抱闸力是否有效;In the closed state of the elevator brake, the elevator control and driver simulate the overload state of the elevator according to the balance torque, and calculate the overload torque, and the elevator control and driver input the overload torque to the side of the traction sheave car. When the elevator is overloaded, it is determined whether the brake force is valid according to whether the traction sheave rotates;

当所述曳引轮没有发生转动时,判定所述抱闸力有效,则退出所述抱闸力自检测模式恢复对外服务;When the traction sheave does not rotate, it is determined that the brake force is valid, then exit the brake force self-test mode and resume external services;

当所述曳引轮发生转动时,判定所述抱闸力无效,则驱动向所述曳引轮轿厢侧输出维持所述轿厢与对重平衡的力矩,并报送故障告警,发出报警信号停止对外服务。When the traction sheave rotates, it is determined that the brake force is invalid, and then the drive outputs to the side of the traction sheave car a torque to maintain the balance between the car and the counterweight, and a fault alarm is reported and an alarm is issued The signal stops external service.

优选的,所述在电梯抱闸打开状态下,由电梯控制及驱动器向曳引轮轿厢侧输入使所述轿厢和对重平衡的平衡力矩具体为:Preferably, when the elevator brake is opened, the elevator control and driver input the balance torque to the traction sheave car side to balance the car and the counterweight as follows:

判断电梯控制及驱动器的运行状态;Judging the operating status of elevator control and drive;

当判定为空载状态时,触发进入抱闸力自检测模式;When it is judged to be in the no-load state, it will trigger to enter the brake force self-detection mode;

在所述抱闸力自检测模式下所述电梯控制及驱动器控制电梯运行至预设指定楼层,并停止对外服务;In the brake force self-detection mode, the elevator control and driver control the elevator to run to the preset designated floor, and stop the external service;

所述电梯控制及驱动器控制打开电梯抱闸并输出力矩,调整轿厢和对重平衡,并获取使所述轿厢和对重平衡的平衡力矩。The elevator control and the driver control open the elevator brake and output torque, adjust the balance of the car and the counterweight, and obtain the balance torque for balancing the car and the counterweight.

优选的,在电梯抱闸闭合状态下,所述电梯控制及驱动器根据所述平衡力矩模拟电梯超载状态,计算出超载力矩,由电梯控制及驱动器向所述曳引轮轿厢侧输入所述超载力矩,在所述电梯超载状态下根据曳引轮是否转动判定抱闸力是否有效具体为:Preferably, in the closed state of the elevator brake, the elevator control and driver simulates the overload state of the elevator according to the balance torque, calculates the overload torque, and the elevator control and driver inputs the overload torque to the side of the traction sheave car. Moment, in the overload state of the elevator, according to whether the traction sheave rotates to determine whether the brake force is valid, specifically:

在抱闸闭合状态下,根据所述平衡力矩模拟电梯超载状态,计算出所述超载力矩;In the closed state of the brake, simulate the overload state of the elevator according to the balance torque, and calculate the overload torque;

由电梯控制及驱动器向所述曳引轮轿厢侧输入所述超载力矩;Input the overload torque to the side of the traction sheave car by the elevator control and driver;

在所述超载力矩输出稳定后,根据所述电梯的所述曳引轮是否转动判断抱闸力是否有效。After the output of the overload torque is stable, it is judged whether the brake force is valid according to whether the traction sheave of the elevator rotates.

优选的,所述根据所述电梯的所述曳引轮是否转动判断抱闸力是否有效具体为:Preferably, the judging whether the brake force is effective according to whether the traction sheave of the elevator rotates is specifically:

实时读取所述曳引机同轴上编码器的脉冲值;Read the pulse value of the encoder on the coaxial shaft of the traction machine in real time;

根据所述编码器的脉冲值判断所述曳引轮是否有转动,进而判断抱闸力是否有效。According to the pulse value of the encoder, it is judged whether the traction sheave rotates, and then judges whether the brake force is valid.

优选的,所述根据所述电梯的所述曳引轮是否转动判断抱闸力是否有效具体为:Preferably, the judging whether the brake force is effective according to whether the traction sheave of the elevator rotates is specifically:

实时读取所述曳引机同轴上编码器旋转角度值;Read the rotation angle value of the encoder on the coaxial axis of the traction machine in real time;

根据所述编码器的旋转角度值判断所述曳引轮是否有转动,进而判断抱闸力是否有效。According to the rotation angle value of the encoder, it is judged whether the traction sheave rotates, and then judges whether the brake force is valid.

一种电梯抱闸力自检测及抱闸失效保护系统,包括:A brake force self-detection and brake failure protection system for an elevator, comprising:

平衡力矩输入单元,用于在电梯抱闸打开状态下,由电梯控制及驱动器向曳引轮轿厢侧输入使所述轿厢和对重平衡的平衡力矩;The balance torque input unit is used to input the balance torque to balance the car and the counterweight from the elevator control and driver to the side of the traction sheave car when the elevator brake is opened;

判定单元,用于在电梯抱闸闭合状态下,所述电梯控制及驱动器根据所述平衡力矩模拟电梯超载状态,计算出超载力矩,由电梯控制及驱动器向所述曳引轮轿厢侧输入所述超载力矩,在所述电梯超载状态下根据曳引轮是否转动判定抱闸力是否有效;当所述曳引轮没有发生转动时,判定所述抱闸力有效,则退出所述抱闸力自检测模式恢复对外服务;当所述曳引轮发生转动时,判定所述抱闸力无效,则驱动向所述轿厢侧输出维持所述轿厢与对重平衡的力矩,并报送故障告警,发出报警信号停止对外服务。The judging unit is used to calculate the overload torque by simulating the overload state of the elevator according to the balance torque when the elevator brake is closed. When the elevator is overloaded, it is judged whether the brake force is valid according to whether the traction wheel rotates; when the traction wheel does not rotate, it is determined that the brake force is valid, and the brake force is withdrawn. Self-detection mode resumes external service; when the traction sheave rotates, it is determined that the brake force is invalid, then the drive outputs to the car side a torque to maintain the balance between the car and the counterweight, and reports a fault Alarm, send an alarm signal to stop external services.

优选的,所述平衡力矩输入单元包括:Preferably, the balance torque input unit includes:

判断单元,用于判断电梯控制及驱动器的运行状态;A judging unit, used to judge the elevator control and the operating status of the drive;

触发单元,用于当判定为空载状态时,触发进入抱闸力自检测模式;The trigger unit is used to trigger and enter the braking force self-detection mode when it is judged to be in the no-load state;

控制单元,用于在所述抱闸力自检测模式下所述电梯控制及驱动器控制电梯运行至预设指定楼层,并停止对外服务;A control unit, used for the elevator control and the driver to control the elevator to run to a preset designated floor in the braking force self-detection mode, and to stop external service;

获取单元,用于所述电梯控制及驱动器控制打开电梯抱闸并输出力矩,调整轿厢和对重平衡,并获取使所述轿厢和对重平衡的平衡力矩。The obtaining unit is used for the elevator control and the driver to control opening the elevator brake and output torque, adjust the balance of the car and the counterweight, and obtain the balance torque for balancing the car and the counterweight.

优选的,所述判定单元包括:Preferably, the determination unit includes:

模拟单元,用于在抱闸闭合状态下,根据所述平衡力矩模拟电梯超载状态,计算出所述超载力矩;The simulation unit is used to simulate the overload state of the elevator according to the balance torque in the closed state of the brake, and calculate the overload torque;

输入单元,用于由电梯控制及驱动器向所述曳引轮轿厢侧输入所述超载力矩;an input unit, used for inputting the overload torque to the side of the traction sheave car by the elevator control and driver;

判断转动单元,用于在所述超载力矩输出稳定后,根据所述电梯的所述曳引轮是否转动判定抱闸力是否有效。The judging rotation unit is used for judging whether the brake force is valid according to whether the traction sheave of the elevator rotates after the output of the overload torque is stable.

优选的,所述判断转动单元包括:Preferably, the judging rotation unit includes:

第一读取单元,用于实时读取所述曳引机同轴上编码器的脉冲值;The first reading unit is used to read the pulse value of the encoder on the coaxial axis of the traction machine in real time;

第一判定单元,用于根据所述编码器的脉冲值判断所述曳引轮是否有转动,进而判断抱闸力是否有效。The first determining unit is configured to determine whether the traction sheave rotates according to the pulse value of the encoder, and further determine whether the brake force is valid.

优选的,所述判断转动单元包括:Preferably, the judging rotation unit includes:

第二读取单元,用于实时读取所述曳引机同轴上编码器的旋转角度值;The second reading unit is used to read the rotation angle value of the encoder on the coaxial axis of the traction machine in real time;

第二判定单元,用于根据所述编码器的旋转角度值判断所述曳引轮是否有转动,进而判断抱闸力是否有效。The second determining unit is configured to determine whether the traction sheave rotates according to the rotation angle value of the encoder, and further determine whether the brake force is valid.

经由上述的技术方案可知,与现有技术相比,本发明公开了一种电梯抱闸力自检测及抱闸失效保护方法及系统,该方法包括:在电梯抱闸打开状态下,由电梯控制及驱动器向曳引轮轿厢侧输入使轿厢和对重平衡的平衡力矩;根据平衡力矩模拟电梯超载状态,计算出超载力矩,并向曳引轮轿厢侧输入超载力矩,在电梯超载状态下根据曳引轮是否转动判定抱闸力是否有效;当曳引轮没有发生转动时,判定抱闸力有效,则退出抱闸力自检测模式恢复对外服务;当曳引轮发生转动时,判定抱闸力无效,则驱动向曳引轮轿厢侧输出维持轿厢与对重平衡的力矩,并报送故障告警,发出报警信号停止对外服务。本发明在电梯抱闸闭合状态下,向轿厢施以一定的力矩,人为或预设自检模式模拟让电梯处于超载状态,通过在该状态下判断曳引轮是否有转动,从而进一步对抱闸力是否有效进行判定,简化了检测方法流程。It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses a method and system for self-detection of elevator brake force and brake failure protection. The method includes: when the elevator brake is opened, the elevator controls And the driver inputs the balance torque to the side of the traction sheave car to balance the car and the counterweight; simulates the overload state of the elevator according to the balance torque, calculates the overload torque, and inputs the overload torque to the side of the traction sheave car, in the elevator overload state Next, judge whether the brake force is valid according to whether the traction wheel rotates; when the traction wheel does not rotate, it is determined that the brake force is valid, then exit the brake force self-test mode and resume external services; when the traction wheel rotates, determine If the brake force is invalid, the drive will output the torque to the traction sheave car side to maintain the balance between the car and the counterweight, and report a fault alarm, and send an alarm signal to stop external service. In the present invention, when the elevator brake is closed, a certain torque is applied to the car, and the artificial or preset self-inspection mode simulates the elevator being in an overloaded state. By judging whether the traction sheave rotates in this state, the car is further protected. Whether the braking force is valid is judged, which simplifies the detection method flow.

附图说明Description of drawings

为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据提供的附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

图1为本发明实施例提供的一种电梯抱闸力自检测及抱闸失效保护方法的流程示意图;Fig. 1 is a schematic flow chart of an elevator brake force self-detection and brake failure protection method provided by an embodiment of the present invention;

图2为本发明实施例图1中的步骤S101的具体流程示意图;FIG. 2 is a schematic flowchart of step S101 in FIG. 1 according to an embodiment of the present invention;

图3为本发明实施例图1中的步骤S102的具体流程示意图;FIG. 3 is a schematic flowchart of step S102 in FIG. 1 according to an embodiment of the present invention;

图4为本发明实施例提供的一种电梯抱闸力自检测及抱闸失效保护方法的具体流程示意图;Fig. 4 is a schematic flow chart of an elevator brake force self-detection and brake failure protection method provided by an embodiment of the present invention;

图5为本发明实施例提供的一种电梯抱闸力自检测及抱闸失效保护系统的结构示意图;Fig. 5 is a schematic structural diagram of an elevator brake force self-detection and brake failure protection system provided by an embodiment of the present invention;

图6为本发明实施例图5中的平衡力矩输入单元的具体结构示意图;Fig. 6 is a schematic structural diagram of the balance torque input unit in Fig. 5 according to the embodiment of the present invention;

图7为本发明实施例图5中的判断单元的具体结构示意图;FIG. 7 is a schematic structural diagram of a judging unit in FIG. 5 according to an embodiment of the present invention;

图8为本发明实施例提供的一种电梯抱闸力自检测及抱闸失效保护系统的具体结构示意图。Fig. 8 is a schematic structural diagram of an elevator brake force self-detection and brake failure protection system provided by an embodiment of the present invention.

具体实施方式detailed description

下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。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.

所谓抱闸力是否有效即是在轿厢超载下抱闸闭合,抱闸是否能制动曳引轮,阻止轿厢滑动。根据国标标准中有关电梯平衡系数的要求可以得出,在电梯超载状态下,需要抱闸力最大。因此在电梯超载状态下能制动曳引轮的抱闸力,即可视为完全有效抱闸力。The so-called whether the brake force is effective means that the brake is closed when the car is overloaded, and whether the brake can brake the traction sheave and prevent the car from sliding. According to the requirements of the elevator balance coefficient in the national standard, it can be concluded that when the elevator is overloaded, the maximum braking force is required. Therefore, the brake force that can brake the traction sheave when the elevator is overloaded can be regarded as the fully effective brake force.

本发明中电梯抱闸力自检测方法正是基于以上原理,在电梯抱闸闭合状态下,向轿厢施以一定的力矩,人为让电梯处于超载状态,通过在该状态下读取曳引轮上编码器的脉冲值或编码器角度等方法,判断曳引轮是否有转动,从而进一步对抱闸力是否有效进行判定。The elevator brake force self-detection method in the present invention is based on the above principles. When the elevator brake is closed, a certain torque is applied to the car, and the elevator is artificially overloaded. The pulse value of the upper encoder or the angle of the encoder can be used to determine whether the traction sheave rotates, so as to further determine whether the brake force is effective.

请参阅附图1,图1为本发明实施例公开的一种电梯抱闸力自检测及抱闸失效保护方法的流程示意图。如图1所示,本发明公开了一种电梯抱闸力自检测及抱闸失效保护方法,具体该方法可以包括如下步骤:Please refer to accompanying drawing 1, which is a schematic flowchart of a method for self-detection of brake force and brake failure protection disclosed in an embodiment of the present invention. As shown in Figure 1, the present invention discloses a method for self-detection of elevator brake force and brake failure protection. Specifically, the method may include the following steps:

S101、在电梯抱闸打开状态下,由电梯控制及驱动器向曳引轮轿厢侧输入使轿厢和对重平衡的平衡力矩。S101. When the elevator brake is opened, the elevator controller and driver input a balance torque to the side of the traction sheave car to balance the car and the counterweight.

需要说明的是,电梯控制及驱动器(电梯智能一体机)在电梯不载人的情况下,可以通过人为按钮或者预设好的时间进入抱闸力自检测模式下,进行抱闸力检测,例如:在系统进行设定时,每隔一定时间(如15天或30天等)自动进行抱闸力检测,电梯控制及驱动器(电梯智能一体机)向曳引机输出一定力矩,打开抱闸,电梯控制及驱动器快速调节使轿厢和对重平衡,即:轿厢端和对重端的钢丝绳受力大小相等,并记录下此时所输出的平衡力矩F1It should be noted that the elevator control and driver (elevator intelligent all-in-one machine) can enter the brake force self-test mode through a manual button or a preset time to perform brake force detection when the elevator is not carrying people. : When the system is set, the brake force detection is automatically performed every certain period of time (such as 15 days or 30 days, etc.), and the elevator control and driver (elevator intelligent all-in-one machine) output a certain torque to the traction machine to open the brake. Elevator control and quick adjustment of the driver make the car and counterweight balanced, that is, the force on the wire rope at the car end and the counterweight end is equal, and record the output balance torque F 1 at this time.

S102、在电梯抱闸闭合状态下,电梯控制及驱动器根据平衡力矩模拟电梯超载状态,计算出超载力矩,由电梯控制及驱动器向曳引轮轿厢侧输入超载力矩。S102. In the closed state of the elevator brake, the elevator control and driver simulate the overload state of the elevator according to the balance torque, calculate the overload torque, and input the overload torque to the traction sheave car side by the elevator control and driver.

S103、在模拟电梯超载状态下根据曳引轮是否转动判定抱闸力是否有效,当曳引轮没有发生转动时,则进入步骤S104;当曳引轮发生转动时,则进入步骤S105。S103. In the simulated elevator overload state, determine whether the brake force is valid according to whether the traction sheave rotates. If the traction sheave does not rotate, proceed to step S104; when the traction sheave rotates, proceed to step S105.

需要说明的是,电梯控制及驱动器(电梯智能一体机)根据电梯超载的定义(电梯额定载荷的125%)模拟计算出轿厢处于超载状态下的超载力矩F2,并向轿厢侧输出超载力矩F2,具体的,向轿厢侧输出超载力矩F2与平衡力矩F1之间的关系为:It should be noted that the elevator control and driver (elevator intelligent all-in-one machine) simulates and calculates the overload moment F 2 when the car is in an overloaded state according to the definition of elevator overload (125% of the rated load of the elevator), and outputs the overload moment F2 to the car side. Moment F 2 , specifically, the relationship between the overload torque F 2 output to the car side and the balance torque F 1 is:

F2=(125%/k)*F1 F 2 =(125%/k)*F 1

根据电梯平衡系数关系:According to the elevator balance coefficient relationship:

Q=g+k*g′Q=g+k*g'

其中,Q为对重块的重量;K为电梯平衡系统(国标要求:40%~50%,该方案中取最小40%);g为轿厢的重量;g′为电梯的额定载荷。Among them, Q is the weight of the counterweight; K is the elevator balance system (national standard requirements: 40% to 50%, the minimum 40% is taken in this scheme); g is the weight of the car; g' is the rated load of the elevator.

可以推算出空载下轿厢与对重的重量偏差k*g′,即电梯智能一体机输出的平衡力矩F1正是弥补该重量偏差k*g′。It can be calculated that the weight deviation k*g' between the car and the counterweight under no load, that is, the balance torque F 1 output by the elevator intelligent all-in-one machine just makes up for the weight deviation k*g'.

S104、判定抱闸力有效,则退出抱闸力自检测模式恢复对外服务。S104. It is determined that the brake force is valid, then exit the brake force self-detection mode and resume external services.

若检测曳引轮没有发生转动,则认为抱闸力有效,则退出抱闸力自检测模式,即抱闸力自检测结束,恢复对外服务,重新开放电梯服务供使用者使用。If it is detected that the traction sheave does not rotate, it is considered that the brake force is valid, and the brake force self-test mode is exited, that is, the brake force self-test is completed, the external service is resumed, and the elevator service is reopened for users.

S105、判定抱闸力无效,则驱动向曳引轮轿厢侧输出维持轿厢与对重平衡的力矩,并报送故障告警,发出报警信号停止对外服务。S105 , judging that the brake force is invalid, then drive to output the torque to the traction sheave car side to maintain the balance between the car and the counterweight, and report a fault alarm, and send an alarm signal to stop external service.

若检测曳引轮发生转动,则认为抱闸力失效,抱闸力自检测结束,电梯智能一体机(电梯控制及驱动器)报故障并立即向维保单位及物业单位告警,同时控制电梯保持关门状态,屏蔽内、外呼梯功能,禁止使用者使用;输出一定力矩维持轿厢与对重平衡,关闭电梯的正常对外服务功能。If it is detected that the traction sheave rotates, it is considered that the brake force is invalid. After the brake force self-test is completed, the elevator intelligent all-in-one machine (elevator control and drive) reports a fault and immediately sends an alarm to the maintenance unit and property management unit, and at the same time controls the elevator to keep the door closed. In this state, the functions of internal and external calls are blocked, and users are prohibited from using them; a certain torque is output to maintain the balance between the car and the counterweight, and the normal external service function of the elevator is closed.

本实施例提供了一种电梯抱闸力自检测及抱闸失效保护方法,该方法包括:在电梯抱闸打开状态下,由电梯控制及驱动器向曳引轮轿厢侧输入使所述轿厢和对重平衡的平衡力矩;在电梯抱闸闭合状态下,根据平衡力矩模拟电梯超载状态,计算出超载力矩,并向曳引轮轿厢侧输入超载力矩,在电梯超载状态下根据曳引轮是否转动判定抱闸力是否有效;当曳引轮没有发生转动时,判定抱闸力有效,则退出抱闸力自检测模式恢复对外服务;当曳引轮发生转动时,判定抱闸力无效,则驱动向曳引轮轿厢侧输出维持轿厢与对重平衡的力矩,并报送故障告警,发出报警信号停止对外服务。本发明通过人为或预设自检模式,使系统处于抱闸力自检测模式下,检测空轿厢和打开抱闸状态下,驱动输出的平衡力矩,根据该平衡力矩计算出模拟超载情况下的力矩,在抱闸闭合状态下,向曳引轮轿厢侧施以超载力矩,在该状态下判断曳引轮是否有转动,从而进一步对抱闸力是否有效进行判定,简化了检测方法流程。This embodiment provides a method for self-detection of elevator brake force and brake failure protection. The method includes: when the elevator brake is opened, the elevator control and driver input to the side of the traction sheave car to make the car and the balance torque of the counterweight balance; in the closed state of the elevator brake, simulate the overload state of the elevator according to the balance torque, calculate the overload torque, and input the overload torque to the side of the traction sheave car, in the elevator overload state according to the traction sheave Whether the brake force is valid or not is determined by whether the traction wheel rotates; when the traction wheel does not rotate, it is determined that the brake force is valid, then exit the brake force self-test mode and resume external services; when the traction wheel rotates, it is determined that the brake force is invalid, Then drive to the side of the traction wheel car to output the torque to maintain the balance between the car and the counterweight, and report a fault alarm, and send an alarm signal to stop external service. The present invention makes the system in the brake force self-detection mode through the artificial or preset self-test mode, detects the balance torque output by the drive when the car is empty and the brake is opened, and calculates the simulated overload torque according to the balance torque. Torque, when the brake is closed, an overload torque is applied to the side of the traction sheave car, and in this state, it is judged whether the traction sheave rotates, so as to further determine whether the brake force is effective, and the detection method process is simplified.

具体的,请参阅附图2,图2为本发明实施例图1中的步骤S101的具体流程示意图。如图2所示,具体的,所述步骤S101:在电梯抱闸打开状态下,由电梯控制及驱动器向曳引轮轿厢侧输入使轿厢和对重平衡的平衡力矩具体可以包括如下步骤:Specifically, please refer to FIG. 2 , which is a schematic flowchart of step S101 in FIG. 1 according to an embodiment of the present invention. As shown in Figure 2, specifically, the step S101: when the elevator brake is open, the elevator control and driver input the balance torque to the side of the traction sheave car to balance the car and the counterweight, which may specifically include the following steps :

S201、判断电梯控制及驱动器的运行状态。S201. Judging the elevator control and the operating status of the driver.

S202、当判定为空载状态时,触发进入抱闸力自检测模式。S202. When it is judged to be in the no-load state, trigger to enter the brake force self-detection mode.

S203、在抱闸力自检测模式下电梯控制及驱动器控制电梯运行至预设指定楼层,并停止对外服务。S203. In the brake force self-detection mode, the elevator control and the driver control the elevator to run to the preset designated floor, and stop the external service.

S204、电梯控制及驱动器控制打开电梯抱闸并输出力矩,调整轿厢和对重平衡,并获取使轿厢和对重平衡的平衡力矩。S204. The elevator control and the driver control open the elevator brake and output torque, adjust the balance between the car and the counterweight, and obtain the balance torque for balancing the car and the counterweight.

需要说明的是,电梯控制及驱动器(电梯智能一体机)在电梯不载人的情况下,可以通过人为按钮或者预设好的时间进入抱闸力自检测模式下,进行抱闸力检测,例如:在系统进行设定时,每隔一定时间(如15天或30天等)自动进行抱闸力检测,电梯控制及驱动器(电梯智能一体机)向曳引机输出一定力矩,打开抱闸,电梯控制及驱动器快速调节使轿厢和对重平衡,即:轿厢端和对重端的钢丝绳受力大小相等,并记录下此时所输出的平衡力矩F1It should be noted that the elevator control and driver (elevator intelligent all-in-one machine) can enter the brake force self-test mode through a manual button or a preset time to perform brake force detection when the elevator is not carrying people. : When the system is set, the brake force detection is automatically performed every certain period of time (such as 15 days or 30 days, etc.), and the elevator control and driver (elevator intelligent all-in-one machine) output a certain torque to the traction machine to open the brake. Elevator control and quick adjustment of the driver make the car and counterweight balanced, that is, the force on the wire rope at the car end and the counterweight end is equal, and record the output balance torque F 1 at this time.

具体的,请参阅附图3,图3为本发明实施例图1中的步骤S102的具体流程示意图。如图3所示,具体的,所述步骤S102:在电梯抱闸闭合状态下,电梯控制及驱动器根据平衡力矩模拟电梯超载状态,计算出超载力矩,由电梯控制及驱动器向曳引轮轿厢侧输入超载力矩,在电梯超载状态下根据曳引轮是否转动判定抱闸力是否有效具体可以包括如下步骤:Specifically, please refer to FIG. 3 , which is a schematic flowchart of step S102 in FIG. 1 according to an embodiment of the present invention. As shown in Figure 3, specifically, the step S102: in the closed state of the elevator brake, the elevator control and driver simulate the overload state of the elevator according to the balance torque, calculate the overload torque, and send the elevator control and driver to the traction sheave car Input the overload torque on the side, and determine whether the brake force is valid according to whether the traction sheave rotates under the overload state of the elevator. The specific steps may include the following steps:

S301、在电梯抱闸闭合状态下,根据平衡力矩模拟电梯超载状态,计算出超载力矩。S301. In the closed state of the elevator brake, simulate the overload state of the elevator according to the balance torque, and calculate the overload torque.

S302、由电梯控制及驱动器向曳引轮轿厢侧输入所述超载力矩。S302. Input the overload torque to the side of the traction sheave car by the elevator control and driver.

S302、在超载力矩输出稳定后,根据电梯的曳引轮是否转动判断抱闸力是否有效。S302. After the overload torque output is stable, judge whether the brake force is valid according to whether the traction sheave of the elevator rotates.

需要说明的是,电梯控制及驱动器(电梯智能一体机)根据电梯超载的定义(电梯额定载荷的125%)模拟计算出轿厢处于超载状态下的超载力矩F2,并向轿厢侧输出超载力矩F2,具体的,向轿厢侧输出超载力矩F2与平衡力矩F1之间的关系为:It should be noted that the elevator control and driver (elevator intelligent all-in-one machine) simulates and calculates the overload moment F 2 when the car is in an overloaded state according to the definition of elevator overload (125% of the rated load of the elevator), and outputs the overload moment F2 to the car side. Moment F 2 , specifically, the relationship between the overload torque F 2 output to the car side and the balance torque F 1 is:

F2=(125%/k)*F1 F 2 =(125%/k)*F 1

根据电梯平衡系数关系:According to the elevator balance coefficient relationship:

Q=g+k*g′Q=g+k*g'

其中,Q为对重块的重量;K为电梯平衡系统(国标要求:40%~50%,该方案中取最小40%);g为轿厢的重量;g′为电梯的额定载荷。Among them, Q is the weight of the counterweight; K is the elevator balance system (national standard requirements: 40% to 50%, the minimum 40% is taken in this scheme); g is the weight of the car; g' is the rated load of the elevator.

可以推算出空载下轿厢与对重的重量偏差k*g′,即电梯智能一体机输出的平衡力矩F1正是弥补该重量偏差k*g′。It can be calculated that the weight deviation k*g' between the car and the counterweight under no load, that is, the balance torque F 1 output by the elevator intelligent all-in-one machine just makes up for the weight deviation k*g'.

请参阅附图4,图4为本发明实施例公开的一种电梯抱闸力自检测及抱闸失效保护方法的具体流程示意图。如图4所示,本发明公开了一种电梯抱闸力自检测及抱闸失效保护方法,具体该方法可以包括如下步骤:Please refer to accompanying drawing 4, which is a schematic flow chart of a method for self-detection of elevator braking force and braking failure protection disclosed in an embodiment of the present invention. As shown in Figure 4, the present invention discloses a method for self-detection of elevator brake force and brake failure protection. Specifically, the method may include the following steps:

S401、判断电梯控制及驱动器的运行状态。S401. Judging the elevator control and the operating status of the driver.

具体的,判断电梯控制及驱动器的运行状态,可以是人为的检查轿厢的状态,也可以是电梯控制及驱动器在一定时间内不接收运行指令,在接收到进入抱闸力自检测模式指令时,如果轿厢在运行状态,则等待此次运行完成后,再进入抱闸力自检测模式。Specifically, judging the running state of the elevator control and driver can be to check the state of the car artificially, or it can be that the elevator control and the driver do not receive the running command within a certain period of time. , if the car is running, wait until the running is completed, and then enter the brake force self-test mode.

S402、当判定为空载状态时,触发进入抱闸力自检测模式。S402. When it is judged to be in the no-load state, trigger to enter the brake force self-detection mode.

S403、在抱闸力自检测模式下电梯控制及驱动器控制电梯运行至预设指定楼层,并停止对外服务。S403. In the brake force self-detection mode, the elevator control and the driver control the elevator to run to the preset designated floor, and stop the external service.

S404、电梯控制及驱动器控制打开电梯抱闸,调整轿厢和对重平衡,并获取使轿厢和对重平衡的平衡力矩。S404. The elevator control and the driver control open the elevator brake, adjust the balance between the car and the counterweight, and obtain a balance torque for balancing the car and the counterweight.

需要说明的是,电梯控制及驱动器(电梯智能一体机)在电梯不载人的情况下,可以通过人为按钮或者预设好的时间进入抱闸力自检测模式下,进行抱闸力检测,例如:在系统进行设定时,每隔一定时间(如15天或30天等)自动进行抱闸力检测,电梯控制及驱动器(电梯智能一体机)向曳引机输出一定力矩,打开抱闸,电梯控制及驱动器快速调节使轿厢和对重平衡,即:轿厢端和对重端的钢丝绳受力大小相等,并记录下此时所输出的平衡力矩F1It should be noted that the elevator control and driver (elevator intelligent all-in-one machine) can enter the brake force self-test mode through a manual button or a preset time to perform brake force detection when the elevator is not carrying people, for example : When the system is set, the brake force detection is automatically performed every certain period of time (such as 15 days or 30 days, etc.), and the elevator control and driver (elevator intelligent all-in-one machine) output a certain torque to the traction machine to open the brake. Elevator control and quick adjustment of the driver make the car and counterweight balanced, that is, the force on the wire rope at the car end and the counterweight end is equal, and record the output balance moment F 1 at this time.

S405、在电梯抱闸闭合状态下,所述电梯控制及驱动器根据平衡力矩模拟电梯超载状态,计算出超载力矩。S405. In the closed state of the elevator brake, the elevator controller and driver simulate the overload state of the elevator according to the balance torque, and calculate the overload torque.

S406、由电梯控制及驱动器向曳引轮轿厢侧输入超载力矩。S406. The elevator control and driver input overload torque to the side of the traction sheave car.

需要说明的是,电梯控制及驱动器(电梯智能一体机)根据电梯超载的定义(电梯额定载荷的125%)模拟计算出轿厢处于超载状态下的超载力矩F2,并向轿厢侧输出超载力矩F2,具体的,向轿厢侧输出超载力矩F2与平衡力矩F1之间的关系为:It should be noted that the elevator control and driver (elevator intelligent all-in-one machine) simulates and calculates the overload moment F 2 when the car is in an overloaded state according to the definition of elevator overload (125% of the rated load of the elevator), and outputs the overload moment F2 to the car side. Moment F 2 , specifically, the relationship between the overload torque F 2 output to the car side and the balance torque F 1 is:

F2=(125%/k)*F1 F 2 =(125%/k)*F 1

根据电梯平衡系数关系:According to the elevator balance coefficient relationship:

Q=g+k*g′Q=g+k*g'

其中,Q为对重块的重量;K为电梯平衡系统(国标要求:40%~50%,该方案中取最小40%);g为轿厢的重量;g′为电梯的额定载荷。Among them, Q is the weight of the counterweight; K is the elevator balance system (national standard requirements: 40% to 50%, the minimum 40% is taken in this scheme); g is the weight of the car; g' is the rated load of the elevator.

可以推算出空载下轿厢与对重的重量偏差k*g′,即电梯智能一体机输出的平衡力矩F1正是弥补该重量偏差k*g′。It can be calculated that the weight deviation k*g' between the car and the counterweight under no load, that is, the balance torque F 1 output by the elevator intelligent all-in-one machine just makes up for the weight deviation k*g'.

S407、在超载力矩输出稳定后,根据电梯的曳引轮是否转动判断抱闸力是否有效,当曳引轮没有发生转动时,则进入步骤S408;当曳引轮发生转动时,则进入步骤S409。S407. After the overload torque output is stable, judge whether the brake force is valid according to whether the traction sheave of the elevator rotates. When the traction sheave does not rotate, enter step S408; when the traction sheave rotates, enter step S409. .

S408、判定抱闸力有效,则退出抱闸力自检测模式恢复对外服务。S408. It is determined that the brake force is valid, then exit the brake force self-detection mode and resume external services.

若检测曳引轮没有发生转动,则认为抱闸力有效,则退出抱闸力自检测模式,即抱闸力自检测结束,恢复对外服务,重新开放电梯服务供使用者使用。If it is detected that the traction sheave does not rotate, it is considered that the brake force is valid, and the brake force self-test mode is exited, that is, the brake force self-test is completed, the external service is resumed, and the elevator service is reopened for users.

S409、判定抱闸力无效,则驱动向曳引轮轿厢侧输出维持轿厢与对重平衡的力矩,并报送故障告警,发出报警信号停止对外服务。S409 , judging that the brake force is invalid, the driver outputs a torque to the side of the traction sheave car to maintain the balance between the car and the counterweight, and reports a failure alarm, and sends out an alarm signal to stop external service.

若检测曳引轮发生转动,则认为抱闸力失效,抱闸力自检测结束,电梯智能一体机(电梯控制及驱动器)报故障并立即向维保单位及物业单位告警,同时控制电梯保持关门状态,屏蔽内、外呼梯功能,禁止使用者使用;输出一定力矩维持轿厢与对重平衡,关闭电梯的正常对外服务功能。If it is detected that the traction sheave rotates, it is considered that the brake force is invalid. After the brake force self-test is completed, the elevator intelligent all-in-one machine (elevator control and drive) reports a fault and immediately sends an alarm to the maintenance unit and property management unit, and at the same time controls the elevator to keep the door closed. In this state, the functions of internal and external calls are blocked, and users are prohibited from using them; a certain torque is output to maintain the balance between the car and the counterweight, and the normal external service function of the elevator is closed.

具体的,所述根据电梯的曳引轮是否转动判断抱闸力是否有效具体为:Specifically, according to whether the traction sheave of the elevator rotates to determine whether the brake force is effective, it is specifically as follows:

实时读取曳引机同轴上编码器的脉冲值或编码器旋转角度值;Read the pulse value of the encoder on the coaxial shaft of the traction machine or the rotation angle value of the encoder in real time;

根据编码器的脉冲值或编码器旋转角度值判断曳引轮是否有转动,进而判断抱闸力是否有效。According to the pulse value of the encoder or the rotation angle value of the encoder, it is judged whether the traction sheave rotates, and then judges whether the brake force is valid.

本实施例提供了一种电梯抱闸力自检测及抱闸失效保护方法,该方法包括:在电梯抱闸打开状态下,由电梯控制及驱动器向轿厢输入使所述轿厢和对重平衡的平衡力矩;在电梯抱闸闭合状态下,根据平衡力矩模拟电梯超载状态,计算出超载力矩,并向曳引轮轿厢侧输入超载力矩,在电梯超载状态下根据曳引轮是否转动判定抱闸力是否有效;当曳引轮没有发生转动时,判定抱闸力有效,则退出抱闸力自检测模式恢复对外服务;当曳引轮发生转动时,判定抱闸力无效,则驱动向曳引轮轿厢侧输出维持轿厢与对重平衡的力矩,并报送故障告警,发出报警信号停止对外服务。本发明在通过人为或预设自检模式,使系统处于抱闸力自检测模式下,检测空轿厢和打开抱闸状态下,驱动输出的平衡力矩,根据该平衡力矩计算出模拟超载情况下的力矩,在抱闸闭合状态下,向曳引轮轿厢侧施以超载力矩,在该状态下判断曳引轮是否有转动,从而进一步对抱闸力是否有效进行判定,简化了检测方法流程。This embodiment provides a method for self-detection of elevator brake force and brake failure protection. The method includes: when the elevator brake is opened, the elevator control and driver input to the car to balance the car and the counterweight. In the closed state of the elevator brake, simulate the overload state of the elevator according to the balance torque, calculate the overload torque, and input the overload torque to the side of the traction sheave car, and judge the lock according to whether the traction sheave rotates when the elevator is overloaded. Whether the brake force is valid; when the traction sheave does not rotate, it is determined that the brake force is valid, then exit the brake force self-test mode and resume external service; when the traction sheave rotates, it is determined that the brake force is invalid, then drive The pulley car side outputs the torque to maintain the balance between the car and the counterweight, and reports a fault alarm, and sends out an alarm signal to stop external service. In the present invention, the system is in the brake force self-detection mode through the artificial or preset self-test mode, and when the empty car is detected and the brake is opened, the balance torque output by the drive is calculated according to the balance torque under the simulated overload condition. In the closed state of the brake, an overload torque is applied to the side of the traction sheave car. In this state, it is judged whether the traction sheave rotates, so as to further determine whether the brake force is effective, which simplifies the detection method flow .

请参阅附图5,图5为本发明实施例提供的一种电梯抱闸力自检测及抱闸失效保护系统的结构示意图。如图5所示,本发明公开了一种电梯抱闸力自检测及抱闸失效保护系统,具体的,该系统可以具体包括:平衡力矩输入单元51和判定单元52,其中,平衡力矩输入单元51,用于在电梯抱闸打开状态下,由电梯控制及驱动器向曳引轮轿厢侧输入使轿厢和对重平衡的平衡力矩;判定单元52,用于在电梯抱闸闭合状态下,电梯控制及驱动器根据平衡力矩模拟电梯超载状态,计算出超载力矩,由电梯控制及驱动器向所述曳引轮轿厢侧输入所述超载力矩,在所述电梯超载状态下根据曳引轮是否转动判定抱闸力是否有效;当曳引轮没有发生转动时,判定抱闸力有效,则退出抱闸力自检测模式恢复对外服务;当曳引轮发生转动时,判定抱闸力无效,则驱动向曳引轮轿厢侧输出维持轿厢与对重平衡的力矩,并报送故障告警,发出报警信号停止对外服务。Please refer to accompanying drawing 5, which is a structural schematic diagram of an elevator braking force self-detection and braking failure protection system provided by an embodiment of the present invention. As shown in Figure 5, the present invention discloses a brake force self-detection and brake failure protection system for an elevator. Specifically, the system may specifically include: a balance torque input unit 51 and a determination unit 52, wherein the balance torque input unit 51, used for inputting the balancing torque between the car and the counterweight from the elevator control and driver to the side of the traction sheave car when the elevator brake is open; the determination unit 52 is used for, when the elevator brake is closed, The elevator control and driver simulate the overload state of the elevator according to the balance torque, and calculate the overload torque. The elevator control and driver input the overload torque to the side of the traction sheave car. Determine whether the brake force is valid; when the traction wheel does not rotate, it is determined that the brake force is valid, then exit the brake force self-test mode and resume external service; when the traction wheel rotates, it is determined that the brake force is invalid, then drive Output the torque to maintain the balance between the car and the counterweight to the side of the traction wheel car, and report a fault alarm, and send an alarm signal to stop external service.

由于本实施例中的各单元能够执行图1所示的方法,本实施例未详细描述的部分,可参考对图1的相关说明。Since each unit in this embodiment can execute the method shown in FIG. 1 , for parts not described in detail in this embodiment, reference may be made to the relevant description of FIG. 1 .

本实施例提供了一种电梯抱闸力自检测及抱闸失效保护系统,本发明通过人为或预设自检模式,使系统处于抱闸力自检测模式下,检测空轿厢和打开抱闸状态下,驱动输出的平衡力矩,根据该平衡力矩计算出模拟超载情况下的力矩,在抱闸闭合状态下,向曳引轮轿厢侧施以超载力矩,在该状态下判断曳引轮是否有转动,从而进一步对抱闸力是否有效进行判定,简化了检测方法流程。This embodiment provides an elevator brake force self-detection and brake failure protection system. The invention makes the system in the brake force self-detection mode through manual or preset self-test mode, detects empty car and opens the brake In the state, the balance torque output by the drive is calculated according to the balance torque under the simulated overload situation. When the brake is closed, the overload torque is applied to the side of the traction sheave car. In this state, it is judged whether the traction sheave is There is rotation, so as to further judge whether the brake force is effective, and simplify the detection method flow.

请参阅附图6,图6为本发明实施例图5中的平衡力矩输入单元的具体结构示意图。如图6所示,所述平衡力矩输入单元51包括:判断单元61,用于判断电梯控制及驱动器的运行状态;触发单元62,用于当判定为空载状态时,触发进入抱闸力自检测模式;控制单元63,用于在抱闸力自检测模式下电梯控制及驱动器控制电梯运行至预设指定楼层,并停止对外服务;获取单元64,用于电梯控制及驱动器控制打开电梯抱闸并输出力矩,调整轿厢和对重平衡,并获取使轿厢和对重平衡的平衡力矩。Please refer to accompanying drawing 6, which is a schematic structural diagram of the balance torque input unit shown in Fig. 5 according to an embodiment of the present invention. As shown in Figure 6, the balance torque input unit 51 includes: a judging unit 61 for judging the operating state of the elevator control and the driver; Detection mode; the control unit 63 is used to control the elevator and the driver to control the elevator to run to the preset designated floor in the brake force self-detection mode, and stop the external service; the acquisition unit 64 is used to control the elevator and the driver to control the opening of the elevator brake And output the torque, adjust the balance of the car and the counterweight, and obtain the balance torque to balance the car and the counterweight.

由于本实施例中的各单元能够执行图2所示的方法,本实施例未详细描述的部分,可参考对图2的相关说明。Since each unit in this embodiment can execute the method shown in FIG. 2 , for parts not described in detail in this embodiment, reference may be made to the relevant description of FIG. 2 .

请参阅附图7,图7为本发明实施例图5中的判断单元的具体结构示意图。如图7所示,所述判定单元52包括:模拟单元71,用于在电梯抱闸闭合状态下,根据平衡力矩模拟电梯超载状态,计算出超载力矩;输入单元72,用于由电梯控制及驱动器向曳引轮轿厢侧输入超载力矩;判断转动单元73,用于在超载力矩输出稳定后,根据电梯的曳引轮是否转动判定抱闸力是否有效。Please refer to accompanying drawing 7, which is a schematic structural diagram of the judging unit in Fig. 5 according to an embodiment of the present invention. As shown in Figure 7, the determination unit 52 includes: a simulation unit 71, which is used to simulate the overload state of the elevator according to the balance torque under the closed state of the elevator brake, and calculates the overload torque; an input unit 72, which is used for controlling and The driver inputs the overload torque to the traction sheave car side; the judging rotation unit 73 is used to determine whether the brake force is valid according to whether the traction sheave of the elevator rotates after the output of the overload torque is stable.

由于本实施例中的各单元能够执行图3所示的方法,本实施例未详细描述的部分,可参考对图3的相关说明。Since each unit in this embodiment can execute the method shown in FIG. 3 , for parts not described in detail in this embodiment, reference may be made to the relevant description of FIG. 3 .

图8为本发明实施例提供的一种电梯抱闸力自检测及抱闸失效保护系统的具体结构示意图。如图8所示,本发明公开了一种电梯抱闸力自检测及抱闸失效保护系统,具体的,该系统可以具体包括:判断单元81,用于判断电梯控制及驱动器的运行状态;触发单元82,用于当判定为空载状态时,触发进入抱闸力自检测模式;控制单元83,用于在抱闸力自检测模式下电梯控制及驱动器控制电梯运行至预设指定楼层,并停止对外服务;获取单元84,用于电梯控制及驱动器控制打开电梯抱闸,调整轿厢和对重平衡,并获取使轿厢和对重平衡的平衡力矩。模拟单元85,用于在电梯抱闸闭合状态下,电梯控制及驱动器根据平衡力矩模拟电梯超载状态计算出超载力矩;输入单元86,用于由电梯控制及驱动器向曳引轮轿厢侧输入超载力矩;判断转动单元87,用于在超载力矩输出稳定后,根据电梯的曳引轮是否转动判定抱闸力是否有效,当曳引轮没有发生转动时,判定抱闸力有效,则退出抱闸力自检测模式恢复对外服务;当曳引轮发生转动时,判定抱闸力无效,则驱动向曳引轮轿厢侧输出维持轿厢与对重平衡的力矩,并报送故障告警,发出报警信号停止对外服务。Fig. 8 is a schematic structural diagram of an elevator brake force self-detection and brake failure protection system provided by an embodiment of the present invention. As shown in Figure 8, the present invention discloses an elevator brake force self-detection and brake failure protection system. Specifically, the system may specifically include: a judging unit 81 for judging the elevator control and the operating state of the driver; The unit 82 is used to trigger and enter the brake force self-detection mode when it is determined to be in the no-load state; the control unit 83 is used to control the elevator in the brake force self-detection mode and the driver to control the elevator to run to the preset designated floor, and Stop the external service; the acquisition unit 84 is used for elevator control and driver control to open the elevator brake, adjust the balance of the car and the counterweight, and obtain the balance torque for balancing the car and the counterweight. The simulation unit 85 is used to calculate the overload moment by the elevator control and driver according to the balance torque simulation elevator overload state when the elevator brake is closed; the input unit 86 is used to input the overload torque to the traction sheave car side by the elevator control and driver. Torque: judging the rotation unit 87, which is used to determine whether the brake force is valid according to whether the traction sheave of the elevator rotates after the output of the overload torque is stable. The force self-test mode resumes external service; when the traction sheave rotates, it is determined that the brake force is invalid, and the drive outputs to the car side of the traction sheave to maintain the balance between the car and the counterweight, and reports a fault alarm and sends out an alarm The signal stops external service.

由于本实施例中的各单元能够执行图4所示的方法,本实施例未详细描述的部分,可参考对图4的相关说明。Since each unit in this embodiment can execute the method shown in FIG. 4 , for parts not described in detail in this embodiment, reference may be made to the relevant description of FIG. 4 .

具体的,所述判断转动单元86可以包括:第一读取单元,用于实时读取曳引机同轴上编码器的脉冲值;第一判定单元,用于根据编码器的脉冲值判断曳引轮是否有转动,进而判断抱闸力是否有效。Specifically, the judging rotation unit 86 may include: a first reading unit for reading the pulse value of the encoder on the coaxial shaft of the traction machine in real time; Whether the pulley rotates, and then judge whether the brake force is effective.

or

具体的,所述判断转动单元86可以包括:第二读取单元,用于实时读取曳引机同轴上编码器的旋转角度值;第二判定单元,用于根据编码器的旋转角度值判断曳引轮是否有转动,进而判断抱闸力是否有效。Specifically, the judging rotation unit 86 may include: a second reading unit for reading the rotation angle value of the encoder on the coaxial axis of the traction machine in real time; Determine whether the traction sheave is rotating, and then determine whether the brake force is effective.

本实施例提供了一种电梯抱闸力自检测及抱闸失效保护系统,本发明通过人为或预设自检模式,使系统处于抱闸力自检测模式下,检测空轿厢和打开抱闸状态下,驱动输出的平衡力矩,根据该平衡力矩计算出模拟超载情况下的力矩,在抱闸闭合状态下,向曳引轮轿厢侧施以超载力矩,在该状态下判断曳引轮是否有转动,从而进一步对抱闸力是否有效进行判定,简化了检测方法流程。This embodiment provides an elevator brake force self-detection and brake failure protection system. The invention makes the system in the brake force self-detection mode through manual or preset self-test mode, detects empty car and opens the brake In the state, the balance torque output by the drive is calculated according to the balance torque under the simulated overload situation. When the brake is closed, the overload torque is applied to the side of the traction sheave car. In this state, it is judged whether the traction sheave is There is rotation, so as to further judge whether the brake force is effective, and simplify the detection method flow.

综上所示,本发明公开了一种电梯抱闸力自检测及抱闸失效保护方法及系统,该方法包括:在电梯抱闸打开状态下,由电梯控制及驱动器向曳引轮轿厢侧输入使轿厢和对重平衡的平衡力矩;在电梯抱闸闭合状态下,计算出超载力矩,并向曳引轮轿厢侧输入超载力矩,根据平衡力矩模拟电梯超载状态,在电梯超载状态下根据曳引轮是否转动判定抱闸力是否有效;当曳引轮没有发生转动时,判定抱闸力有效,则退出抱闸力自检测模式恢复对外服务;当曳引轮发生转动时,判定抱闸力无效,则驱动向曳引轮轿厢侧输出维持轿厢与对重平衡的力矩,并报送故障告警,发出报警信号停止对外服务。本发明通过人为或预设自检模式,使系统处于抱闸力自检测模式下,检测空轿厢和打开抱闸状态下,驱动输出的平衡力矩,根据该平衡力矩计算出模拟超载情况下的力矩,在抱闸闭合状态下,向曳引轮轿厢侧施以超载力矩,在该状态下判断曳引轮是否有转动,从而进一步对抱闸力是否有效进行判定,简化了检测方法流程。To sum up, the present invention discloses a method and system for self-detection of elevator brake force and brake failure protection. Input the balance torque to balance the car and the counterweight; in the closed state of the elevator brake, calculate the overload torque, and input the overload torque to the side of the traction sheave car, and simulate the overload state of the elevator according to the balance torque. Determine whether the brake force is valid according to whether the traction sheave rotates; when the traction sheave does not rotate, it is determined that the brake force is valid, then exit the brake force self-test mode and resume external services; when the traction wheel rotates, determine the brake force If the brake force is invalid, the drive will output to the side of the traction sheave car the torque to maintain the balance between the car and the counterweight, and report a fault alarm, and send an alarm signal to stop external service. The present invention makes the system in the brake force self-detection mode through the artificial or preset self-test mode, detects the balance torque output by the drive when the car is empty and the brake is opened, and calculates the simulated overload torque according to the balance torque. Torque, when the brake is closed, an overload torque is applied to the side of the traction sheave car, and in this state, it is judged whether the traction sheave rotates, so as to further determine whether the brake force is effective, and the detection method process is simplified.

需要说明的是,本说明书中的各个实施例均采用递进的方式描述,每个实施例重点说明的都是与其他实施例的不同之处,各个实施例之间相同相似的部分互相参见即可。It should be noted that each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. For the same and similar parts in each embodiment, refer to each other, that is, Can.

对所公开的实施例的上述说明,使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的,本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下,在其它实施例中实现。因此,本发明将不会被限制于本文所示的这些实施例,而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1.一种电梯抱闸力自检测及抱闸失效保护方法,其特征在于,包括:1. A method for self-detection of elevator brake force and brake failure protection, characterized in that, comprising: 在电梯抱闸打开状态下,由电梯控制及驱动器向曳引轮轿厢侧输入使所述轿厢和对重平衡的平衡力矩;When the elevator brake is opened, the elevator control and driver input a balance torque to the side of the traction sheave car to balance the car and the counterweight; 在电梯抱闸闭合状态下,所述电梯控制及驱动器根据所述平衡力矩模拟电梯超载状态,计算出超载力矩,由电梯控制及驱动器向所述曳引轮轿厢侧输入所述超载力矩,在所述电梯超载状态下根据曳引轮是否转动判定抱闸力是否有效;In the closed state of the elevator brake, the elevator control and driver simulate the overload state of the elevator according to the balance torque, and calculate the overload torque, and the elevator control and driver input the overload torque to the side of the traction sheave car. When the elevator is overloaded, it is determined whether the brake force is valid according to whether the traction sheave rotates; 当所述曳引轮没有发生转动时,判定所述抱闸力有效,则退出所述抱闸力自检测模式恢复对外服务;When the traction sheave does not rotate, it is determined that the brake force is valid, then exit the brake force self-test mode and resume external services; 当所述曳引轮发生转动时,判定所述抱闸力无效,则驱动向所述曳引轮轿厢侧输出维持所述轿厢与对重平衡的力矩,并报送故障告警,发出报警信号停止对外服务。When the traction sheave rotates, it is determined that the brake force is invalid, and then the drive outputs to the side of the traction sheave car a torque to maintain the balance between the car and the counterweight, and a fault alarm is reported and an alarm is issued The signal stops external service. 2.根据权利要求1所述的电梯抱闸力自检测及抱闸失效保护方法,其特征在于,所述在电梯抱闸打开状态下,由电梯控制及驱动器向曳引轮轿厢侧输入使所述轿厢和对重平衡的平衡力矩具体为:2. The elevator brake force self-detection and brake failure protection method according to claim 1, characterized in that, when the elevator brake is opened, the elevator control and driver input the driving force to the side of the traction sheave car. The balance moment of the car and counterweight balance is specifically: 判断电梯控制及驱动器的运行状态;Judging the operating status of elevator control and drive; 当判定为空载状态时,触发进入抱闸力自检测模式;When it is judged to be in the no-load state, it will trigger to enter the brake force self-detection mode; 在所述抱闸力自检测模式下所述电梯控制及驱动器控制电梯运行至预设指定楼层,并停止对外服务;In the brake force self-detection mode, the elevator control and driver control the elevator to run to the preset designated floor, and stop the external service; 所述电梯控制及驱动器控制打开电梯抱闸并输出力矩,调整轿厢和对重平衡,并获取使所述轿厢和对重平衡的平衡力矩。The elevator control and the driver control open the elevator brake and output torque, adjust the balance of the car and the counterweight, and obtain the balance torque for balancing the car and the counterweight. 3.根据权利要求1所述的电梯抱闸力自检测及抱闸失效保护方法,其特征在于,在电梯抱闸闭合状态下,所述电梯控制及驱动器根据所述平衡力矩模拟电梯超载状态,计算出超载力矩,由电梯控制及驱动器向所述曳引轮轿厢侧输入所述超载力矩,在所述电梯超载状态下根据曳引轮是否转动判定抱闸力是否有效具体为:3. The elevator brake force self-detection and brake failure protection method according to claim 1, characterized in that, in the closed state of the elevator brake, the elevator control and driver simulate the elevator overload state according to the balance torque, Calculate the overload torque, and input the overload torque to the traction sheave car side by the elevator control and driver, and determine whether the brake force is valid according to whether the traction sheave rotates under the overload state of the elevator, specifically: 在抱闸闭合状态下,根据所述平衡力矩模拟电梯超载状态,计算出所述超载力矩;In the closed state of the brake, simulate the overload state of the elevator according to the balance torque, and calculate the overload torque; 由电梯控制及驱动器向所述曳引轮轿厢侧输入所述超载力矩;Input the overload torque to the side of the traction sheave car by the elevator control and driver; 在所述超载力矩输出稳定后,根据所述电梯的所述曳引轮是否转动判断抱闸力是否有效。After the output of the overload torque is stable, it is judged whether the brake force is valid according to whether the traction sheave of the elevator rotates. 4.根据权利要求3所述的电梯抱闸力自检测及抱闸失效保护方法,其特征在于,所述根据所述电梯的所述曳引轮是否转动判断抱闸力是否有效具体为:4. The elevator brake force self-detection and brake failure protection method according to claim 3, wherein the method for judging whether the brake force is effective according to whether the traction sheave of the elevator rotates is specifically: 实时读取所述曳引机同轴上编码器的脉冲值;Read the pulse value of the encoder on the coaxial shaft of the traction machine in real time; 根据所述编码器的脉冲值判断所述曳引轮是否有转动,进而判断抱闸力是否有效。According to the pulse value of the encoder, it is judged whether the traction sheave rotates, and then judges whether the brake force is valid. 5.根据权利要求3所述的电梯抱闸力自检测及抱闸失效保护方法,其特征在于,所述根据所述电梯的所述曳引轮是否转动判断抱闸力是否有效具体为:5. The elevator brake force self-detection and brake failure protection method according to claim 3, wherein the method for judging whether the brake force is effective according to whether the traction sheave of the elevator rotates is specifically: 实时读取所述曳引机同轴上编码器旋转角度值;Read the rotation angle value of the encoder on the coaxial axis of the traction machine in real time; 根据所述编码器的旋转角度值判断所述曳引轮是否有转动,进而判断抱闸力是否有效。According to the rotation angle value of the encoder, it is judged whether the traction sheave rotates, and then judges whether the brake force is valid. 6.一种电梯抱闸力自检测及抱闸失效保护系统,其特征在于,包括:6. An elevator brake force self-detection and brake failure protection system, characterized in that it comprises: 平衡力矩输入单元,用于在电梯抱闸打开状态下,由电梯控制及驱动器向曳引轮轿厢侧输入使所述轿厢和对重平衡的平衡力矩;The balance torque input unit is used to input the balance torque to balance the car and the counterweight from the elevator control and driver to the side of the traction sheave car when the elevator brake is opened; 判定单元,用于在电梯抱闸闭合状态下,所述电梯控制及驱动器根据所述平衡力矩模拟电梯超载状态,计算出超载力矩,由电梯控制及驱动器向所述曳引轮轿厢侧输入所述超载力矩,在所述电梯超载状态下根据曳引轮是否转动判定抱闸力是否有效;当所述曳引轮没有发生转动时,判定所述抱闸力有效,则退出所述抱闸力自检测模式恢复对外服务;当所述曳引轮发生转动时,判定所述抱闸力无效,则驱动向所述轿厢侧输出维持所述轿厢与对重平衡的力矩,并报送故障告警,发出报警信号停止对外服务。The judging unit is used to calculate the overload torque by simulating the overload state of the elevator according to the balance torque when the elevator brake is closed. When the elevator is overloaded, it is judged whether the brake force is valid according to whether the traction wheel rotates; when the traction wheel does not rotate, it is determined that the brake force is valid, and the brake force is withdrawn. Self-detection mode resumes external service; when the traction sheave rotates, it is determined that the brake force is invalid, then the drive outputs to the car side a torque to maintain the balance between the car and the counterweight, and reports a fault Alarm, send an alarm signal to stop external services. 7.根据权利要求6所述的电梯抱闸力自检测及抱闸失效保护系统,其特征在于,所述平衡力矩输入单元包括:7. The elevator brake force self-detection and brake failure protection system according to claim 6, wherein the balance torque input unit comprises: 判断单元,用于判断电梯控制及驱动器的运行状态;A judging unit, used to judge the elevator control and the operating status of the drive; 触发单元,用于当判定为空载状态时,触发进入抱闸力自检测模式;The trigger unit is used to trigger and enter the braking force self-detection mode when it is judged to be in the no-load state; 控制单元,用于在所述抱闸力自检测模式下所述电梯控制及驱动器控制电梯运行至预设指定楼层,并停止对外服务;A control unit, used for the elevator control and the driver to control the elevator to run to a preset designated floor in the braking force self-detection mode, and to stop external service; 获取单元,用于所述电梯控制及驱动器控制打开电梯抱闸并输出力矩,调整轿厢和对重平衡,并获取使所述轿厢和对重平衡的平衡力矩。The obtaining unit is used for the elevator control and the driver to control opening the elevator brake and output torque, adjust the balance of the car and the counterweight, and obtain the balance torque for balancing the car and the counterweight. 8.根据权利要求6所述的电梯抱闸力自检测及抱闸失效保护系统,其特征在于,所述判定单元包括:8. The elevator brake force self-detection and brake failure protection system according to claim 6, wherein the judging unit comprises: 模拟单元,用于在抱闸闭合状态下,根据所述平衡力矩模拟电梯超载状态,计算出所述超载力矩;The simulation unit is used to simulate the overload state of the elevator according to the balance torque in the closed state of the brake, and calculate the overload torque; 输入单元,用于由电梯控制及驱动器向所述曳引轮轿厢侧输入所述超载力矩;an input unit, used for inputting the overload torque to the side of the traction sheave car by the elevator control and driver; 判断转动单元,用于在所述超载力矩输出稳定后,根据所述电梯的所述曳引轮是否转动判定抱闸力是否有效。The judging rotation unit is used for judging whether the brake force is valid according to whether the traction sheave of the elevator rotates after the output of the overload torque is stable. 9.根据权利要求8所述的电梯抱闸力自检测及抱闸失效保护系统,其特征在于,所述判断转动单元包括:9. The elevator brake force self-detection and brake failure protection system according to claim 8, wherein the judging rotation unit comprises: 第一读取单元,用于实时读取所述曳引机同轴上编码器的脉冲值;The first reading unit is used to read the pulse value of the encoder on the coaxial axis of the traction machine in real time; 第一判定单元,用于根据所述编码器的脉冲值判断所述曳引轮是否有转动,进而判断抱闸力是否有效。The first determining unit is configured to determine whether the traction sheave rotates according to the pulse value of the encoder, and further determine whether the brake force is valid. 10.根据权利要求8所述的电梯抱闸力自检测及抱闸失效保护系统,其特征在于,所述判断转动单元包括:10. The elevator brake force self-detection and brake failure protection system according to claim 8, wherein the judging rotation unit comprises: 第二读取单元,用于实时读取所述曳引机同轴上编码器的旋转角度值;The second reading unit is used to read the rotation angle value of the encoder on the coaxial axis of the traction machine in real time; 第二判定单元,用于根据所述编码器的旋转角度值判断所述曳引轮是否有转动,进而判断抱闸力是否有效。The second determining unit is configured to determine whether the traction sheave rotates according to the rotation angle value of the encoder, and further determine whether the brake force is valid.
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