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Elevator traction wheel rope groove abrasion detecting device

A detection device, elevator dragging technology, applied in the direction of transportation and packaging, elevators, etc., can solve problems such as difficult to directly and clearly observe the traction wheel, narrow gaps, and difficult to confirm the normal detection position

Active Publication Date: 2017-02-15
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

like Figure 13 As shown, when the traction sheave 14 is arranged on the side close to the hoistway wall 17, and the motor part 13 is arranged on the side away from the hoistway wall 17, since the gap between the motor part 13 and the hoistway wall 17 is narrow, maintenance personnel 10 It is difficult to directly and clearly observe the traction sheave 14
Therefore, the maintenance personnel 10 have to grope to set the wear detection device 20 to the traction sheave 14, but it is difficult to confirm whether the set position is a normal detection position.

Method used

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  • Elevator traction wheel rope groove abrasion detecting device
  • Elevator traction wheel rope groove abrasion detecting device
  • Elevator traction wheel rope groove abrasion detecting device

Examples

Experimental program
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Effect test

no. 1 Embodiment ＞

[0027] figure 1 It is a schematic diagram explaining the detection of the wear of the rope groove of the traction sheave by the wear detection device 20 of the first embodiment of the present invention.

[0028] The hoisting machine as the detection target can be roughly divided into a motor part 13 and a hoisting sheave 14. The motor part 13 includes a motor and a brake, and its outer size is larger than the diameter of the traction sheave 14. Such as figure 1 As shown, the traction sheave 14 is arranged on the side close to the hoistway wall 17, and the motor part 13 is arranged on the side away from the hoistway wall 17. Since the gap between the motor part 13 and the hoistway wall 17 is narrow, it is difficult for the maintenance personnel to directly and clearly observe the traction sheave 14. The traction sheave 14 is made of conductive material and has four rope grooves 19. As the material of the traction sheave 14, for example, a metal material such as ductile iron or a...

no. 2 Embodiment ＞

[0042] Figure 4 It is a schematic diagram explaining the detection of the wear of the rope groove of the traction sheave by the wear detection device of the second embodiment of the present invention. Figure 5 From Figure 4 The schematic diagram of the wear detection device projected in the A direction is shown. This embodiment is a modification of the first embodiment. Such as Figure 4 and Figure 5 As shown, the wear detection device 20 of this embodiment mainly includes a detection rod 23, a guide seat 22, and a movable guide cylinder 21. The biggest difference between this embodiment and the first embodiment is that it has a movable guide tube 21. In this embodiment, those components that are the same, corresponding or equivalent to those of the first embodiment are given the same signs, and the description of these parts will be omitted or simplified.

[0043] Image 6 It is a schematic diagram schematically showing the guide seat 22 of this embodiment. Image 6 Contain...

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Abstract

The invention relates to an abrasion detecting device (20) used for detecting abrasion of a rope groove (19) of an elevator traction wheel (14). The abrasion detecting device (20) comprises a detecting bar (23) and a guide base (22). The front end of the detecting bar is in a shape suitable for detecting abrasion of the rope groove. The tail of the detecting bar is provided with scale marks (29) used for detecting abrasion of the rope groove. A plurality of position reference planes (41, 43 and 45) used for determining a normal detecting position are arranged below the guide base. A plurality of guide holes (39) are longitudinally formed in the guide base. The upper end of the guide base is provided with a scale mark reference plane (46) used for reading the scale marks of the detecting bar. The device is provided with an electric illuminating body (60) and power supply circuits (62 and 64), and connecting points (51 and 53) of the power supply circuits are arranged on two reference planes of the guide base. When the position where the guide base is overlapped with the traction wheel is the normal detecting position, the two connecting points communicate through the traction wheel, and the electric illuminating body emits light. Thus, the maintenance personnel can easily determine whether the guide base is arranged in the normal detecting position or not.

Description

Technical field [0001] The present invention relates to a wear detection device for detecting the wear of the rope groove of a traction sheave of an elevator traction machine, in particular to a wear detection device for detecting the wear of the rope groove of an elevator traction sheave composed of conductive materials and having a plurality of rope grooves . Background technique [0002] Japanese Patent Publication No. 2014-210627 discloses an elevator traction sheave rope groove wear detection device. The wear detection device has a guide tube connecting body 8 composed of a plurality of guide tubes, and a plurality of guide tubes that can be inserted into each guide tube. Detection rod 15. When detecting the rope groove of the traction sheave, as in the bulletin figure 1 As shown, it is first necessary to place the two flat surfaces of the lower end of the guide tube connecting body 8 on the shoulders 41 and 45 of the rope grooves at both ends of the traction sheave 4, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/00
Inventor 福田治彦中岛豪
Owner HITACHI LTD