JP2007263700A - Cross level monitor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cross level monitor simply mounted on a crosstie, etc. for measur a deviation in a cross level of an existing railroad, etc. owing to ground fluctuation, uneven settlement, and other causes which can happen in civil and construction works, etc. and monitoring a deviation in the cross level caused by engineering work, etc. performed in the vicinity of railroad, etc. <P>SOLUTION: This cross level monitor is characterized, by being equipped with a turning body, a liquid for floating a float provided on an outer-end-side under face of the turning body, and a measuring means for measuring an inclination angle of the turning body with respect to a rectangular enclosure. The turning body is shaft-supported in the rectangular enclosure with its upper face opened, while being equipped with a mounting collar piece on its lower face, in such a manner as to make the seesaw-like turning motion along the length direction of the rectangular enclosure. This monitor is structured so that inclination angles of left/right both end parts in the length direction of the rectangular enclosure can be accurately measured. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention is a level monitoring device that measures the deviation of the level of an existing track due to ground fluctuation, non-settlement and other causes that may occur in close construction (civil engineering and building construction), etc., and can accurately monitor the fluctuation. It is about.

Incorrect railroad rail levels may cause the train to run up and down, making it less comfortable to ride and leading to derailment accidents. It is important to monitor in certain sections. As this level monitoring device, Japanese Patent Laid-Open No. 7-12624 has been disclosed as a device for monitoring ground deformation caused by ground fluctuations, uneven subsidence, etc. in the vicinity of large structures. In this level monitoring device, an optical sensor is fixed to each leg of a large jig, and a vertical pipe containing liquid such as water or oil is communicated with the communication pipe corresponding to the measurement area of each optical sensor. The liquid level of each vertical pipe is measured by each optical sensor, the signals output from each optical sensor are collected in a signal repeater, and the ground deformation near the building is detected in real time by the data processing device. It is intended to be monitored.
Japanese Patent Laid-Open No. 7-12624

  However, in the above-mentioned JP-A-7-12624, an optical sensor and a vertical pipe containing a liquid such as water or oil corresponding to the measurement area of the optical sensor are installed, and each of the vertical pipes is a communication pipe. In addition to being a large-scale installation, the measurement with the optical sensor uses the reflection of the liquid level contained in the vertical pipe or the floating plate surface, making accurate measurement difficult. Besides, it was very difficult to grasp the deformation. In particular, it was extremely difficult to apply to monitoring the level fluctuation of existing tracks.

The present invention is for solving the above-mentioned problems, and the object of the present invention is to easily install on a sleeper of an existing track (which may be concrete) or the like, and to carry out work in the vicinity of the track It is an object of the present invention to provide a level monitoring device that can accurately monitor level fluctuations caused by the above.

  In order to achieve the above object, the present invention provides a rectangular housing having a fixing means to a surface to be attached, a central portion pivotally supported above the rectangular housing, and both ends floating with a contained liquid. A rotating body having a float and a measuring means for measuring the rotation angle of the rotating body, and the liquid contained in the rectangular casing installed on the sleepers of the existing track A sensitive rotation of the rotating body due to the movement can be secured, and the change in the rotation angle can be accurately grasped.

  The invention according to claim 2 is characterized in that the measuring means is a differential transformer provided at a target position centered on the pivot point of the rotating body, and is being performed near the track. It is configured so that the level fluctuation of the orbit due to etc. can be accurately captured electrically.

  Furthermore, the invention described in claim 3 is characterized in that the upper surface of the rectangular casing is covered with an upper lid having pores, preventing the contained liquid from overflowing, and transporting to the installation site or the site. It was constructed so that the installation work at the site could be simplified.

  According to the present invention, it is possible to ensure the sensitive rotation of the rotating body by the movement of the liquid contained in the rectangular housing installed on the sleepers of the existing track, and to accurately grasp the change in the rotation angle, It has an excellent effect that it can quickly and accurately measure and monitor the influence of fluctuations caused by construction work performed near the track.

  In addition, according to the invention described in claim 2, since the level fluctuation of the track due to construction or the like being performed in the vicinity of the track can be accurately captured electrically, the signal output from each differential transformer is It has an excellent effect that it can be collected in a signal repeater and notified to a train or the like in real time by a data processing device.

  Furthermore, according to the third aspect of the present invention, it is possible to effectively prevent the stored liquid from overflowing and to achieve an excellent effect that the transportation to the installation site and the simplification of the installation work at the site can be achieved. .

  Next, the best mode for carrying out the present invention will be described with reference to the drawings. 1 is a front sectional view of the application level monitoring apparatus, FIG. 2 is a plan view when the upper cover of the application level monitoring apparatus is removed, FIG. 3 is a front sectional view showing the measurement of the application level monitoring apparatus, and FIG. It is a perspective view which shows the state which installed the monitoring apparatus in the sleeper.

  In the figure, reference numeral 1 denotes an application level monitoring device (hereinafter referred to as the application device). The device 1 of the present application includes a rotating body 4 that is pivotally supported by a shaft rod 3 that is inserted between the front and rear walls of the central portion in the length direction, which is higher than the rectangular housing 2. The rotating body 4 is configured so that the left and right wing portions 4a and 4b can rotate in a seesaw shape with the shaft rod 3 as a center.

  As shown in FIGS. 1 and 2, floats 5 and 5 are provided on the lower surfaces of the end portions of the blades 4a and 4b of the rotating body 4 so as to float in the liquid 6 (the liquid level is indicated by a two-dot chain line). Yes. Each of the floats 5 and 5 includes a cylindrical case 5a and a plastic foam 5b injected into the case. This is a configuration for improving and stabilizing the float performance. The floats 5 and 5 move up and down by the movement of the contained liquid 6 in the casing due to the inclination of the rectangular casing 2, and rotate the rotating body 4 around the shaft rod 3.

  For example, when the rectangular casing 2 is inclined upward as shown in FIG. 3, the liquid 6 in the rectangular casing 2 moves so that the liquid level is always kept horizontal. In the floats 5 and 5, the left wing 4 a moves up and the right wing 4 b moves down around the shaft 2 with respect to the long casing 2. Thus, when the relative rotation angle (tilt angle) of the rotating body 4 with respect to the rectangular casing 2 is measured by the measuring means 7, the level of the rectangular casing 2 can be monitored. The liquid 6 is not particularly limited, but can be satisfied by using silicon oil.

  In this embodiment, the measuring means 7 is composed of differential transformers 8 and 8 installed at left and right target positions that are equidistant from the midpoint of the shaft 3 of the rotating body 4. Each of the differential transformers 8 includes an iron core 8a and a coil 8b, and the iron piece 8a hangs down from the rotating body 4 and is formed in a central hole of the coil 8b that stands vertically from the inner bottom surface of the rectangular housing 2. It is inserted.

  The differential transformers 8 and 8 are excited at the coil at this time by setting the stationary position of the axial center point of the iron core 8a in a state where the rectangular casing 2 is kept horizontal as a "0" point. The voltage is adjusted so as to approach “0”. Thus, when the rotating body 4 tilts to the left or right as the rectangular casing 2 tilts to the right or left, the axial center point of the iron core 8a slides to move the coil 8b. The voltage excited by changes. By this voltage change, the rotation angle of the rotating body 4 with respect to the rectangular housing 2 can be measured. Data signals transmitted from the differential transformers 8 and 8 are configured to be transmitted in real time to a personal computer (not shown) via a network driver.

  The rectangular casing 2 is formed by cutting a metal material such as aluminum or stainless steel, and the upper surface 2a is opened. This open upper surface is covered with an upper lid 10 having pores 9. The pores 9 are for adjusting the internal pressure.

  The rectangular casing 2 is fixed to both end faces in the length direction with mounting flanges 2b and 2b that are flush with the lower surface. This is for fixing the rectangular casing 2 to a mounting surface M such as a sleeper of a track which is expected to change due to construction or the like by appropriate means (screwing, tacking, bonding or other means).

  The upper lid 10 covering the upper surface of the rectangular housing 2 is applied with a sealing agent and fixed with bolts 11. Covering the upper surface of the rectangular housing 2 with the upper lid 10 prevents the filled liquid 6 from overflowing when transporting or installing the device 1 of the present application, thereby simplifying the transportation and installation work. It is to do.

  Next, the operation of the present apparatus 1 will be described. First, the device 1 of the present application is installed as shown in FIG. 4 on a sleeper of a track, which is a mounted body M in a place where a change (such as subsidence and uplift of the track) is expected due to construction or the like. In this case, it is preferable to install the long casing 2 along the length direction of the sleepers. In addition, although it installs in every other sleeper in drawing, it is not restricted to this.

  The device 1 installed in this way senses the displacement of the liquid 6 filled by the inclination of the rectangular casing 2 for each differential transformer 8 and transmits it to a personal computer via a network driver. As a result, the track level is displayed on the monitoring monitor at the construction site in real time through the computer management system, or is transmitted as an alarm signal to the train approaching the measurement point.

  The present invention is a level monitoring device capable of accurately measuring and monitoring a change in level of a track due to a track proximity work or the like.

It is front sectional drawing of this application level monitoring apparatus. It is a top view at the time of removing the upper cover of this application level monitoring apparatus. It is front sectional drawing which shows the time of measurement of this application level monitoring apparatus. It is a perspective view which shows the state which installed this application level monitoring apparatus in the sleeper.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Application level monitoring apparatus 2 Rectangular housing 3 Shaft 4 Rotating body 4a, 4b Left and right wing parts 5 Float 5a Cylindrical case 5b Plastic foam 6 Liquid (silicon oil)
7 Measuring Means 8 Differential Transformer 8a Iron Core 8b Coil 9 Pore 10 Upper Lid 11 Bolt M Mounted Surface

Claims (3)

  A rectangular housing having means for fixing to a surface to be mounted, and a rotating body having a float so that the central portion is pivotally supported in the upper portion of the rectangular housing and both end portions are floated by the contained liquid; And a level monitoring device comprising a measuring means for measuring a rotation angle of the rotating body.   The level monitoring apparatus according to claim 1, wherein the measuring means is a differential transformer provided at a target position centered on a pivot point of the rotating body.   The level monitoring device according to claim 1 or 2, wherein an upper surface of the rectangular casing is covered with an upper lid having pores.

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