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Remotely-measuring remotelly-controlled rertical displacement meter

A technology of vertical displacement, remote measurement and remote control, applied in electromagnetic measuring devices, electric/magnetic solid deformation measurement, hydraulic engineering, etc., to reduce labor, improve accuracy and reliability, and ensure continuity and integrity

Inactive Publication Date: 2005-01-26
NANJING HYDRAULIC RES INST THE MINISTRY OF WATER RESOURCES THE MINIST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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Method used

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  • Remotely-measuring remotelly-controlled rertical displacement meter

Examples

Experimental program
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Effect test

Embodiment 1

[0009] Embodiment 1, the horizontal displacement measurement part, with reference to Fig. 1, Fig. 2: a measuring steel wire 1 is fixed on the measuring point in the dam dam body, and the other end of steel wire is wound on the winch 2 of wheel axle system, at the rotation of wheel axle The wheel 3 is wound with a suspension wire rope 4, and the free end of the suspension wire rope is tied with a constant weight 5 and a counterweight 6. It is characterized in that: electric weights are used, and a small winch driven by a micro-motor 8 is arranged inside the weights. 7. The free end of the measuring wire rope is fixed on a small winch. Encoder 9 is set on the axle. During the measurement, start the hoist to lift the counterweight and put it in a suspended state. The measuring steel wire is loaded with full tension, and the measurement can be carried out, that is, the displacement of the dam can be directly measured by the reading of the encoder rotation angle. After the measure...

Embodiment 2

[0010] Embodiment 2, vertical displacement measurement part, refer to image 3 : a liquid level gauge 10 is provided, and the lower end of the liquid level gauge measuring tube is provided with a connecting pipe 11 to communicate with a settlement measuring head 12 fixed on the dam. The connecting pipe is filled with liquid. Its characteristics are: a liquid supply tank 13 is provided, and the liquid supply tank is provided with a pipeline connected to the liquid level gauge. The pipeline is provided with a solenoid valve 14. Above the liquid level gauge, there is a motor driven by a stepping motor 15 and a winch wheel 16. The measuring hammer 17, the liquid column in the measuring hammer and the liquid level gauge are respectively connected with the controller 18 in circuit, and the output of the controller is connected with the solenoid valve and the measuring hammer motor. When measuring, the controller opens the electromagnetic valve, and the liquid supply tank injects liq...

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Abstract

Two portions of large dam horizontal-vrtical displacement meter are respectively improved, the horizontal portion, the counterpoise for measuring steel wire is changed into electric measurement, the internally-mounted small type hoist can be used for controlling suspension and put-down of the counterpoise, and the displacement can be read out by coder, and the horizontal measurement portion, a liquid-supplying box is added, an electromagnetic valve is set and is connected with level meter, and a controller is used for controlling electromagnetic valve to supply liquid. It also includes the components of stepper motor and plumb, and can make two displacement measurements so as to implement automation, remote measurement and remote control, and can raise the measurement accuracy.

Description

technical field [0001] The invention relates to a water conservancy project monitoring device, in particular to a telemetry and remote control vertical displacement meter for monitoring the displacement of a dam. Background technique [0002] During the construction of earth-rockfill dams in water conservancy projects, especially earth-rockfill dams (including face rockfill dams), the deformation of the dam needs to be monitored. After the dam is completed, long-term monitoring is also required. The deformation of the dam includes vertical displacement and horizontal displacement. In the prior art, this kind of monitoring adopts a horizontal and vertical displacement meter, and its structure includes two parts. The horizontal displacement detection part: a measuring steel wire is fixed on the measuring point in the dam body, and the other end of the steel wire is wound on a wheel axle system. on the small wheel of the axle (referred to in the art as "winch wheel"); on the b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B7/00G01B7/16
Inventor 郦能惠李泽崇徐竹青宋永祥张志武唐彤芝沈定贤庞中玉
Owner NANJING HYDRAULIC RES INST THE MINISTRY OF WATER RESOURCES THE MINIST
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