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Elevator load detecting system

A technology of load detection and elevator, which is applied in the direction of measuring devices, transportation and packaging, instruments, etc., and can solve the problems of decreased detection accuracy, errors, and complicated transmission lines.

Inactive Publication Date: 2003-10-15
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] But, in above-mentioned conventional structure, because the expansion and contraction system of shackle spring 6 is transmitted to detection plate 8 by spring seat 4 and shackle pipe 7, then by steel wire rope 11, the displacement amount averaged by detection plate 8 is transmitted to difference Dynamic transformer 9, therefore, its transmission line is complicated, and error will occur on the way of the transmission line, so that the detection accuracy is reduced

Method used

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  • Elevator load detecting system
  • Elevator load detecting system
  • Elevator load detecting system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] figure 1 It is the structural diagram of the elevator of the first embodiment of the present invention. In the figure, a base 12 is fixed on the upper part of the lifting channel 11 . The base 12 may be, for example, an upper support beam fixed in the lift passage 11 or the floor of a machine room. The base 12 supports the drive unit 13 . The drive device 13 has a drive pulley 14 .

[0034] A plurality of main cables 15 are wound around the drive pulley 14 . One end portion of the main cable 15 is connected to the base 12 through the first cable tie portion 17a. The other end portion of the main cable 15 is connected to the base 12 through the second cable tie portion 17b. The car 18 and the counterweight 19 are suspended in the hoistway 11 by the main steel cable. Moreover, the load detection device 16 is provided in the 1st cable connection part 17a.

[0035] under, figure 2 yes figure 1 Front view of the load detection device 16, image 3 yes figure 2 ...

Embodiment 2

[0048] under, Figure 4 It is the structural diagram of the elevator of the second embodiment of the present invention. In the figure, a driving device 41 is disposed on the upper part of the lifting channel 11 . The driving device 41 is provided with a driving pulley 42 and a deflector wheel 43 . A plurality of main cables 44 are wound around the driving pulley 42 and the deflector wheel 43 . A car 45 is suspended from one end of the main cable 44 . A counterweight 46 is suspended from the other end of the main cable 44 .

[0049] One end portion of the main cable 44 is connected to the car 45 through the first cable tie portion 47a. The other end portion of the main cable 44 is connected to the counterweight 46 through the second cable tie portion 47b.

[0050] The load detection device 16 is provided inside the first cable tie portion 47a. The structure of load detection device 16 is identical with embodiment 1, but its use and figure 2 , image 3 Up and down. In ...

Embodiment 3

[0053] under, Figure 5 is a front view of an elevator load detection device according to a third embodiment of the present invention, Figure 6 yes Figure 5 Front view of the detection pulley, Figure 7 yes Figure 6 Front view of the detection pulley. In the figure, a detector 51 for detecting the displacement amount of the shackle rod 21 by detecting the wire rope 30 is mounted on the frame 28 .

[0054] The detector 51 has: the detection shaft 33 fixed in the frame 28, the other end portion of the detection wire rope 30 is fixedly wound on it, and the detection pulley 52 is rotatable with the detection shaft 33 as the center, and the detection pulley 52 is detected toward the winding. The direction of the wire rope 30 ( Figure 5 The tension imparting device 53 that applies force and applies tension to the detection wire rope 30, and the sensor body 36 that detects the rotation angle of the detection pulley 52 and outputs a detection signal.

[0055] The tension imp...

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PUM

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Abstract

In an elevator load detecting device, rod-side pulleys are respectively mounted on a plurality of shackle rods. A plurality of frame-side pulleys are mounted to a frame fixed to a base. The intermediate portion of a detection wire is alternately wrapped around the rod-side pulleys and the frame-side pulleys. One end portion of the detection wire is connected to the frame. The other end portion of the detection wire is wrapped around a detection pulley mounted on the frame. The rotation angle of the detection pulley is detected by a sensor main body.

Description

technical field [0001] The invention relates to an elevator load detection device for detecting car load. Background technique [0002] Figure 17 It is a structural diagram of a traditional elevator load detection device. In the figure, the base 1 is provided with a plurality of through holes 1a. A shackle rod (shackle rod) 2 passes through each through hole 1a. The lower end of each shackle rod 2 is connected with a main steel cable (not shown). The car and the counterweight are suspended in the hoistway by the main steel cable. [0003] A support plate 3 opposite to the lower surface of the base 1 is fixed below the base 1 . A plurality of through holes 3 a penetrating through the shackle rod 2 are provided in the support plate 3 . A spring seat 4 is mounted on the upper end of each shackle rod 2 . In addition, a nut 5 is screwed on the upper end of each shackle rod 2 to limit the upward movement of the spring seat 4 relative to the shackle rod 2 . [0004] A plura...

Claims

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Application Information

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IPC IPC(8): B66B1/34B66B5/14B66B7/06B66B7/08G01G19/14
CPCB66B1/3484G01G19/14B66B3/00
Inventor 川上重信泷川行洋
Owner MITSUBISHI ELECTRIC CORP