Idle detection device of elevator drive

A detection device and drive device technology, applied in transportation, packaging, elevators, etc., can solve the problems of expensive rotating equipment, configuration space troubles, and rising costs

Inactive Publication Date: 2012-07-25
TOSHIBA ELEVATOR KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are technical problems that the rotating equipment becomes expensive by making the shaft rotate, and the space for installing the pulse generator needs to be secured
[0009] In addition, when position detection is performed by a detector having light emitting and receiving functions and a shield plate for blocking the light, it is necessary to arrange a U-shaped detector and a shield plate that enters the opening, The detector cannot be arranged at a position overlapping with the projection surface of the car, but it is necessary to secure an arrangement space
In this case, in order to avoid interference with other equipment of the elevator, it may be difficult to arrange space
In addition, several shielding plates are required for position detection, resulting in an increase in cost

Method used

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  • Idle detection device of elevator drive
  • Idle detection device of elevator drive
  • Idle detection device of elevator drive

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0022] First, a general elevator to which a idling detection device for an elevator driving device is applied will be schematically described. figure 1 It is a diagram showing the overall structure of a general elevator. Such as figure 1 As shown, a hoist (not shown) is installed in a machine room 2 above a hoistway 1 of an elevator. A car 5 is suspended from one end of a main rope 4 suspended from a drive sheave 3 of the winch. On the other hand, at the other end of the main rope 4, a counterweight 6 is suspended.

[0023] In order to eliminate the mass change of the main rope 4 caused by the position of the car 5 , a compensation rope (or compensation chain) 7 is installed on the lower side of the car 5 and the counterweight 6 . On each floor, the car 5 and the hoistway 1 for passengers to board and disembark are opened, and hall doors 8 are provided.

[0024] figure 2 is as figure 1 A detailed view of part X of the car 5 and a part of the landing door 8 in . and, ...

no. 2 approach

[0039] Next, a second embodiment will be described. Fig. 6(a) is a plan view showing the second embodiment, and Fig. 6(b) is a longitudinal sectional view.

[0040] As in the first embodiment, when the hall-side sill 16 is used as the reflection member as the object 56 to be detected, it is necessary to have an entrance and exit of the hall on each floor. On the other hand, in the case of an elevator having a fast-moving zone that passes floors, there may be no entrances and exits on each floor.

[0041]In the second embodiment, the detector 55 is disposed on the front surface of the rail bracket 70 of the fixed guide rail 83 so as to face the car side.

[0042] Generally, more than one track bracket 70 is provided on each floor of the elevator. By providing a matching detector 55 having light emitting and receiving functions, and using the rail bracket 70 as a reflection member as the object 56 to be detected, it can function as a position detection device.

[0043] Also i...

no. 3 approach

[0045] Next, a third embodiment will be described. Fig. 7(a) is a plan view showing a third embodiment, and Fig. 7(b) is a longitudinal sectional view. In the third embodiment, the structure of the detector 55 in the first and second embodiments is changed. Such as Figure 4 As shown, in the front part of the light-emitting part 58 and the light-receiving part 59 of the detector 55, the polarizing filters 60a, 60b that transmit only the light vibrating in a certain direction are transmitted with the vibration of the light transmitted respectively. The direction is set at right angles.

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PUM

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Abstract

The invention provides an idle detection device of an elevator drive, which can realize a position detection device used for detecting idle with low costs and little space. The device comprises a position detection device which is provided with a detector and an object to be detected, wherein the detector is provided with a signal transmitting part for transmitting signals and a signal receiving part for receiving signals and is used for detecting signals; the object to be detected enables the signals from the signal transmission part reflect and leads the signals to the signal receiving part; and a timer device used for detecting time. One of the detector and the object to be detected is configured to at a cage side of the elevator and the other is appositively configured to be at a well side of the elevator; the signal transmitting part and the signal receiving part are configured to be at a same side; the timer device is used for calculating detecting time in the position detection device; the calculated value and a predetermined time are compared to detect idle of the elevator drive.

Description

[0001] This application is based on Japanese Patent Application Japanese Patent Application No. 2011-10606 (filing date: January 21, 2011), and enjoys the priority of this application. This application incorporates the entire content of this application by reference. technical field [0002] The invention relates to a idling detection device for an elevator driving device. Background technique [0003] In the case that the car or the counterweight cannot be moved due to some reason, if the car or the counterweight maintains the immovable state and the control device issues an operation command to continue the operation, the drive of the drive device (winch) Abnormal wear occurs between the sheave and the rope suspending the car, and the abnormal wear progresses, and in the worst case, a dangerous state such as cutting of the rope may occur. [0004] For example, the GB regulation which is the national standard of the People's Republic of China and the European EN regulation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/02
Inventor 饭岛智树
Owner TOSHIBA ELEVATOR KK
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