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Elevator control device, elevator monitoring system and elevator control method

A technology of elevator control device and braking device, which is applied to elevators, transportation and packaging, elevators and other directions in buildings, can solve problems such as inability to repair, and achieve the effect of suppressing impact and noise

Active Publication Date: 2018-09-11
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Noise is generated due to the impact, so there is a problem that maintenance cannot be performed in places or time periods where silence is required.

Method used

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  • Elevator control device, elevator monitoring system and elevator control method
  • Elevator control device, elevator monitoring system and elevator control method
  • Elevator control device, elevator monitoring system and elevator control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0038] figure 1 It is a block diagram showing the whole of the elevator control device according to Embodiment 1 of the present invention. exist figure 1 In , the car 1 of the elevator is arranged in the hoistway. Further, the car 1 is suspended in the shape of a bottle together with the counterweight 5 on the other end side by the rope 4 wound around the sheave 3 provided on the hoisting machine 2 . In addition, the car 1 is driven up and down by a motor provided in the hoisting machine 2 and braked by a braking device 6 . Here, the weight of the counterweight 5 is set to be balanced with the weight of the car 1 side when, for example, 50% of the rated load is loaded in the car 1 .

[0039] The braking device 6 has an unillustrated brake drum and an unillustrated brake, the brake drum is arranged on the shaft of the traction machine 2 that combines the unillustrated motor and the sheave 3, and the brake is used in conjunction with the brake. The drums are configured in a ...

Embodiment approach 2

[0076] In the first embodiment described above, when the brake device 6 is released, the time tp required for the motor to rotate by the predetermined angle Δθ from the stopped state due to the unbalanced torque TA of the motor is used to diagnose the brake device 6. Braking ability.

[0077] On the other hand, in the second embodiment, a method of diagnosing the braking capability of the brake using the motor rotation angle θp after the elapse of a set time Δt from the motor stop state instead of the time tp will be mainly described.

[0078] In addition, the overall structure of the elevator system including the elevator control device according to the second embodiment of the present invention is the same as that of the first embodiment. figure 1 structure shown.

[0079] Figure 4 It is a flowchart showing the flow of a series of operations of the elevator control device according to Embodiment 2 of the present invention. Should Figure 4 The flow chart of the previous...

Embodiment approach 3

[0116] In the above-mentioned second embodiment, the case where the brake release operation is performed with the motor control unit 10 causing the predetermined motor torque TM to act in the same direction as the unbalance torque TA to diagnose the failure of the brake device 6 is described. Braking ability.

[0117] On the other hand, in the third embodiment, a method of diagnosing the braking capability of a brake in consideration of the concept of a fixed diagnostic torque will be described.

[0118] In addition, the overall structure of the elevator system including the elevator control device according to Embodiment 3 of the present invention can be used in the same manner as Embodiments 1 and 2 described above. figure 1 example shown.

[0119] Figure 5 It is a flowchart showing the flow of a series of operations of the elevator control device according to Embodiment 3 of the present invention. Should Figure 5 The flow chart of the embodiment mode 1 figure 2 The ...

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Abstract

An elevator control device, an elevator monitoring system and an elevator control method. The present invention provides a relatively quiet elevator control device and control method, which can diagnose the braking capacity of a braking device (6) by suppressing the impact generated during diagnosis and suppressing the noise generated by the impact. A car (1) arranged in a hoistway of an elevator gradually releases frictional force of a braking device (6) from a state held stationary by a braking device (6). Thus, the time (ts) when the motor of the hoisting machine (2) starts to rotate due to the unbalance of the car (1) and the counterweight (5) is detected, and the time (ts) from the time (ts) when the rotation starts to the arrival time is detected. The motor status information such as the rotation angle or time of the setting timing, such as the time or the rotation angle, etc., is compared with the determination threshold to determine the braking capability of the braking device (6).

Description

technical field [0001] The present invention relates to an elevator control device, an elevator monitoring system, and an elevator control method for diagnosing the braking capability of an elevator traction machine. Background technique [0002] In an ordinary elevator, the car arranged in the hoistway is hung in the shape of a bottle by the main rope that is hung on the sheave of the traction machine, that is, the rope and the counterweight on the other end side. And be driven by lifting. [0003] The brake drum is arranged on the shaft connecting the motor and the sheave of the traction machine. In addition, there is a brake device that presses the movable part against the brake drum by the force of the spring to brake the rotation of the motor of the traction machine, and uses the electromagnetic force generated by the current flowing through the brake coil. The brake is released by attracting the movable part from the brake drum and separating it from the brake drum. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/00B66B5/16B66B11/04
CPCB66B5/0037B66B5/16B66B11/04
Inventor 伊藤然一酒井雅也下畑贤司
Owner MITSUBISHI ELECTRIC CORP