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Chain elongation detection device for passenger conveyor and passenger conveyor

A technology for passenger conveyors and detection devices, which is applied in transportation, packaging, escalators, etc., and can solve the problems of time and labor spent on maintenance items

Active Publication Date: 2018-01-09
TOSHIBA ELEVATOR KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For maintenance personnel, the inspection of maintenance items and the required replacement are also time-consuming and labor-intensive.

Method used

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  • Chain elongation detection device for passenger conveyor and passenger conveyor
  • Chain elongation detection device for passenger conveyor and passenger conveyor
  • Chain elongation detection device for passenger conveyor and passenger conveyor

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0043] figure 1It is a schematic configuration diagram of the passenger conveyor according to the first embodiment of the present invention. The passenger conveyor of this embodiment is an escalator installed between the upper and lower floors of a building. The chain elongation detection device for passenger conveyors of this embodiment is a chain elongation detection device 1 installed in an escalator.

[0044] The inclined main frame 10 is supported between the upper and lower floors of the building. A machine room 11 is provided on the upper end side of the main frame 10 . A drive device 12 , a sprocket 13 and a control device 14 are arranged in the machine compartment 11 . The drive device 12 has a motor 15 and a reduction gear 16 . The motor 15 has a horizontal output shaft parallel to the width direction of the main frame. The speed reducer 16 amplifies the output torque of the motor 15 . A sprocket 17 is provided on the output side of the speed reducer 16 . An e...

no. 2 Embodiment approach

[0092] In the above-described first embodiment, the chain elongation detection device 1 requires an operation of matching detection timings by initial setting before the drive chain 18 is elongated. The chain elongation detection device for passenger conveyors according to the second embodiment of the present invention can perform calculation without initial setting.

[0093] The chain elongation detection device 2 (chain elongation detection device for passenger conveyor according to the second embodiment) includes a calculation unit 31 ( figure 2 ). Calculator 31 stores in advance waveforms from proximity sensors 29 and 30 in a state where detection timings are shifted from each other by δ1 (first time difference) before time elapses during operation of the escalator. Then, the calculation unit 31 obtains δ2 (second time difference) after the elapse of time during the operation. δ2 is a difference between the detection timing of the proximity sensor 30 and the detection t...

no. 3 Embodiment approach

[0107] In the above-mentioned first embodiment, the non-contact sensors 29 and 30 are respectively provided for the drive sprocket 17 and the driven sprocket 13, but the chain elongation detection device for a passenger conveyor according to the third embodiment of the present invention may be Sensors are used instead of the non-contact sensors 29, 30.

[0108] Figure 11 It is a configuration diagram of a chain elongation detection device for a passenger conveyor according to a third embodiment of the present invention. Figure 12 It is a perspective view of the light projecting part, the disk, and the light receiving part. The symbols already described represent the same elements.

[0109] like Figure 11 , figure 1 , figure 2 Thus, the chain elongation detection device 3 includes the drive sprocket 17 , the driven sprocket 13 , the disk 33 , and the disk 34 . The disk 33 and the disk 34 are coaxially provided on the driving sprocket 17 and the driven sprocket 13 . T...

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PUM

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Abstract

The invention provides a passenger conveyor chain extending detection apparatus and a passenger conveyor. The apparatus can accurately and automatically detect the amount of extension of a chain. The apparatus 1 has: a drive wheel 17 which is driven to rotate via a drive source; a driven wheel 13 which is driven to rotate by the drive wheel via a chain 18; to-be-detected bodies 27, 28 which are separately arranged on the drive wheel and the driven wheel; sensors 29, 30 which are secured relative to a main frame of the passenger conveyor based on each to-be-detected body and detect the rotation through of the to-be-detected bodies in alternation; and a computing unit 31 which calculates timing differences of the rotation through from the sensors and calculates the amount of adding of the timing difference prior to and after the time period of the passenger conveyor, and calculates the amount of extension of the chain based on the amount of adding, the angular velocity of the drive wheel and the rotation diametr of the driven wheel.

Description

[0001] This application is based on Japanese Patent Application No. 2015-137649 (filing date is July 9, 2015), and priority is claimed based on this application. This application includes the entire content of this application by referring to this application. technical field [0002] The present invention relates to a chain elongation detection device for a passenger conveyor and a passenger conveyor. Background technique [0003] The escalator has various chains such as a driving chain, a handrail driving chain, and a step chain. Conventionally, maintenance and inspection are regularly performed, and during the maintenance and inspection, the elongation of the chain is adjusted so that the chain can be wound with a constant tension even if the chain elongates over time (for example, refer to Patent Document 1). In the inspection work, for example, the elongation of the step chain is measured during operation (for example, refer to Patent Document 2). The amount of elonga...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B21/02B66B23/20
Inventor 平井正昭冈野真曾我宗则
Owner TOSHIBA ELEVATOR KK