CN216977879U

CN216977879U - Rail subgrade settlement monitoring device based on laser

Info

Publication number: CN216977879U
Application number: CN202220472446.4U
Authority: CN
Inventors: 黄坤亮; 温先划; 潘成瑜; 龙庭该; 胡峰; 何廷宇
Original assignee: Chengdu Fengyu Technology Co ltd; China Railway Nanning Group Co Ltd
Current assignee: Chengdu Fengyu Technology Co ltd; China Railway Nanning Group Co Ltd
Priority date: 2022-03-03
Filing date: 2022-03-03
Publication date: 2022-07-15
Anticipated expiration: 2032-03-03

Abstract

The utility model discloses a rail subgrade settlement monitoring device based on laser, which is characterized in that: the laser irradiation device comprises a photosensitive device and a measuring mechanism, wherein the photosensitive device is fixed at a measuring reference position, the measuring mechanism comprises a laser emitter and a traveling mechanism, the laser emitter is fixed above the traveling mechanism, the laser emitter emits laser to irradiate a photosensitive plate, and the traveling mechanism is movably arranged on a rail. The utility model can move along the railway, can measure all the positions where the settlement occurs and the settlement distance in the area by one-time installation, has simple and convenient operation and improves the efficiency.

Description

Rail subgrade settlement monitoring device based on laser

Technical Field

The utility model relates to the technical field of settlement detection, and particularly belongs to a laser-based rail roadbed settlement monitoring device.

Background

The settlement monitoring of the high-speed rail subgrade is used as an important component of the common operation command work of the rail port, and has very important significance for guaranteeing the normal operation of the high-speed rail. The high-speed rail has strict control on subgrade settlement, and the settlement after construction is required to be zero, so the subgrade settlement detection technology becomes a key problem in the high-speed rail construction technology.

The high-speed rail subgrade can generate settlement in the using process, overlarge settlement, especially uneven settlement can cause the inclination and cracking of the rail track so as to cause abnormal use, and if the settlement is not solved in time, great potential hazards can be generated. At present, most of detection platforms for detecting the settlement of the railway roadbed utilize laser measurement, a reference is set firstly, then laser is irradiated on a photosensitive element, and the position of the photosensitive element for receiving the laser is compared with the reference to determine whether the roadbed is settled; the method is the simplest roadbed measuring method, but the required measuring devices are all fixed at places where settlement is likely to occur, and roadbed settlement is often in a band-shaped manner, so that the device applying the method cannot comprehensively measure all the positions and settlement distances where settlement occurs, and thus, a device capable of measuring all the settlement positions and settlement distances in a settlement area is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a laser-based rail subgrade settlement monitoring device, which can move along a rail to achieve the purpose of measuring all settlement positions and settlement distances in an area by one-time installation, is simple and convenient to operate and improves the efficiency aiming at the defects of the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a rail road bed settlement monitoring devices based on laser, includes photosensitive device and measuring mechanism, photosensitive device fixes and measures the reference position, measuring mechanism includes laser emitter and running gear, laser emitter fixes in running gear's top, and this laser emitter transmission laser shines the sensitization board, the movably setting of running gear is on the rail.

Further, the photosensitive device comprises a photosensitive plate and a base, the photosensitive plate is fixed above the base, and the base is fixed at the measuring reference position.

Furthermore, the base is a triangular support or a fixed frame, and the base supports the light sensing plate and measures the reference position.

Furthermore, a vertical upward supporting rod is arranged on the traveling mechanism, and the photosensitive device is fixed on the supporting rod.

Furthermore, the running mechanism comprises a U-shaped base with a downward opening and rolling wheels arranged inside the U-shaped base.

Furthermore, the rolling wheel is arranged in the middle of the top of the U-shaped base with the downward opening, a rolling shaft transversely penetrates through the center of the rolling wheel, and two ends of the rolling shaft are fixed on two side walls of the U-shaped base.

Furthermore, a plurality of balls are arranged on the inner side wall of the middle lower part of the U-shaped base with the downward opening, and the balls can be freely and rollably embedded on the inner walls of two sides of the U-shaped base.

In summary, due to the adoption of the technical scheme, the utility model has the following technical effects:

1. the utility model has the advantages of reasonableness, simple structure, capability of moving along the rail by the traveling mechanism, capability of determining all subsidence areas and subsidence distances in a measurement area by one-time installation, simple and convenient operation and improved efficiency.

2. The balls are arranged on the inner side wall of the U-shaped base, so that the walking mechanism can keep stable and smooth when moving on a rail, and the balls are beneficial.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of a traveling mechanism according to the present invention;

icon: 1-a laser emitter; 2-a support rod; 3-a traveling mechanism; 301-a ball; 302-a scroll wheel; 303-U-shaped base; 4-a rail; 5-an induction plate; 6-base.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, when used, are used in the orientation or positional relationship shown in the drawings or the orientation or positional relationship that the present invention is used to put, and are used only for convenience of describing and simplifying the description, but do not indicate or imply that the device or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are intended to be construed broadly and may include, for example, a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases by those skilled in the art

As shown in figure 1, the rail subgrade settlement monitoring device based on the laser comprises a photosensitive device and a measuring mechanism, wherein the photosensitive device is fixed at a measuring reference position, the measuring mechanism comprises a laser emitter 1 and a traveling mechanism 3, the laser emitter 1 is fixed above the traveling mechanism 3, the laser emitter 1 emits the laser to irradiate a photosensitive plate, and the traveling mechanism 3 is movably arranged on a rail.

The photosensitive device comprises a photosensitive plate 5 and a base 6, wherein the photosensitive plate 5 is fixed above the base 6, and the base 6 is fixed at a measuring reference position. The light sensing plate 5 is a CCD array sensor, the surface array of the CCD array sensor is provided with a plurality of light sensing elements, the light sensing elements at the positions irradiated by the laser emitted by the laser emitter 1 have the change of photoelectric signals, and physical electric signals are converted into digital signals

The base 6 is a tripod or a fixed mount, and the base 6 supports the plate and measures a reference position, the chosen non-settling position or a position whose settling value is known.

The walking mechanism 3 is provided with a vertical upward supporting rod 2, and the photosensitive device is fixed on the supporting rod; the traveling mechanism 3 includes a U-shaped base 303 with a downward opening and rolling wheels disposed inside the U-shaped base 303. The installation position of the laser emitter 1 is matched with the central position of the induction plate 5, and in the non-settlement position, the laser emitted by the laser emitter 1 is preferably irradiated on the central position of the photosensitive plate.

The rolling wheel 302 is arranged in the middle of the top of the U-shaped base 303 with a downward opening, a rolling shaft transversely penetrates through the center of the rolling wheel 302, and two ends of the rolling shaft are fixed on two side walls of the U-shaped base; a bearing can be arranged between the rolling shaft and the U-shaped base 303 to ensure stable rolling.

The inner side wall of the middle lower part of the U-shaped base with the downward opening is provided with a plurality of balls 301, the balls 301 can be freely embedded on the inner walls of two sides of the U-shaped base in a rolling way, and the surfaces of the balls 301 are attached to the side surfaces of the rails 4. In order to prevent the U-shaped base 303 and the side wall of the rail 4 from sliding friction, and in order to prolong the service life of the U-shaped base 303, the sliding friction between the side walls is converted into rolling friction.

When the monitoring device is used for monitoring the settlement of the rail subgrade, the operation is as follows: fixing the photosensitive device at a measuring reference position, clamping the measuring mechanism on a rail, driving the laser emitter 1 to travel along the rail 4 by a U-shaped base in the traveling mechanism, measuring the settlement at different positions, and reacting the settlement value through the photosensitive plate.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.

Claims

1. The utility model provides a rail road bed settlement monitoring devices based on laser which characterized in that: the device comprises a photosensitive device and a measuring mechanism, wherein the photosensitive device is fixed at a measuring reference position, the measuring mechanism comprises a laser emitter and a traveling mechanism, the laser emitter is fixed above the traveling mechanism, the laser emitter emits laser to irradiate a photosensitive plate, and the traveling mechanism is movably arranged on a rail.

2. A laser-based rail subgrade settlement monitoring device according to claim 1, wherein: the photosensitive device comprises a photosensitive plate and a base, the photosensitive plate is fixed above the base, and the base is fixed at a measuring reference position.

3. A laser-based rail bed settlement monitoring apparatus as claimed in claim 2, wherein: the base is a triangular support or a fixing frame, and the base supports the light sensing plate and measures the reference position.

4. A laser-based rail subgrade settlement monitoring device according to claim 1, wherein: the walking mechanism is provided with a vertical upward supporting rod, and the photosensitive device is fixed on the supporting rod.

5. A laser-based rail subgrade settlement monitoring device according to claim 4, wherein: the running mechanism comprises a U-shaped base with a downward opening and rolling wheels arranged inside the U-shaped base.

6. A laser-based rail bed settlement monitoring apparatus as claimed in claim 5, wherein: the rolling wheel is arranged in the middle of the top of the U-shaped base with the downward opening, a rolling shaft transversely penetrates through the center of the rolling wheel, and two ends of the rolling shaft are fixed on two side walls of the U-shaped base.

7. A laser-based rail bed settlement monitoring apparatus as claimed in claim 6, wherein: and a plurality of balls are arranged on the inner side wall of the middle lower part of the U-shaped base with the downward opening, and the balls can be freely and rollably embedded on the inner walls of two sides of the U-shaped base.