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Lift cable tension measuring method and device

A measuring device and rope technology, which is applied in the direction of transportation, packaging, elevators, etc., can solve the problem of large errors and achieve easy and accurate measurement

Inactive Publication Date: 2013-10-23
FUJITEC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, since the amount of compression of the rod spring is visually observed in the above-mentioned method, there is a problem of large errors and individual differences among operators.

Method used

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  • Lift cable tension measuring method and device
  • Lift cable tension measuring method and device
  • Lift cable tension measuring method and device

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Embodiment Construction

[0033] Hereinafter, based on embodiment of this invention, it demonstrates concretely with reference to drawings.

[0034] The cable tension measuring device involved in the present invention is for such as figure 1 A device for measuring the tension of the main rope 3 in the elevator as shown.

[0035] exist figure 1 In the shown elevator, a plurality of (n) main pulleys are wound around the pulleys 4 and 5 mounted on the elevator car 1, the pulley 7 mounted on the counterweight 2, and the pulley 6 connected to the drive motor (not shown). ropes 3, and the elevator car 1 and the counterweight 2 are suspended by these multiple (n) main ropes 3, and the pulley 6 is rotationally driven by the driving motor, thereby lifting the elevator car 1 drive.

[0036] The cable tension measuring device involved in the present invention, such as figure 2 Shown, comprise: acceleration sensor 8, it is installed on each main rope 3, and detects the vibration of main rope 3; Data recorder ...

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Abstract

The invention provides a lift cable tension measuring method and a lift cable tension measuring device. The lift cable tension measuring device is provided with vibrating sensors (8) and a calculating circuit (10). The vibrating sensors (8) are installed on a plurality of main cables (3) of a suspended lift car respectively, and are used for detecting natural vibration frequency of the main cables; based on output signals of the vibrating sensors (8), the tension of the main cables (3) is worked out through the calculating circuit (10) according to a summing value of the tension acted on the main cables (3) and the natural vibration frequency of any main cable. Therefore, in the device used for measuring the tension acted on the main cables of a lift, the natural vibration frequency of the main cables is measured under the state that the lift car stops in any position and accordingly the tension of the cables can be easily and correctly measured.

Description

technical field [0001] The invention relates to a method and a device for measuring the tension acting on a plurality of main ropes in an elevator for lifting and lowering the elevator car. Background technique [0002] In the elevator, such as figure 1 As shown, a plurality of main ropes 3 are wound around the pulleys 4 and 5 installed on the elevator car 1, the pulley 7 installed on the counterweight 2, and the pulley 6 connected to the driving motor (not shown), and through these A plurality of main ropes 3 are used to suspend the elevator car 1 and the counterweight 2 , and the pulley 6 is driven to rotate by the drive motor, thereby driving the elevator car 1 to move up and down. [0003] In such an elevator, it is ideal to apply the same tension to a plurality of main ropes 3, but if there is an imbalance in the tension of the main ropes 3, excessive tension will be applied to some of the main ropes 3. , thereby causing the problem of shortening the life of the main ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/00
Inventor 新井晋治金子元树户川宽太平田智之田利军
Owner FUJITEC CO LTD
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