CN201525994U

CN201525994U - Rail geometrical state laser measuring apparatus

Info

Publication number: CN201525994U
Application number: CN2009200989460U
Authority: CN
Inventors: 郑小飞
Original assignee: HARBIN ANTONG MEASUREMENT CONTROL TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: HARBIN ANTONG MEASUREMENT CONTROL TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2009-01-15
Filing date: 2009-01-15
Publication date: 2010-07-14
Anticipated expiration: 2019-01-15

Abstract

The utility model relates to a rail geometrical state laser measuring apparatus, which comprises a laser transmitting vehicle and a laser receiving target vehicle. Two measuring vehicles match with each other and work on rails, both the laser transmitting vehicle and the laser receiving target vehicle are provided with wireless communication devices used for transmitting data and remotely controlling and adjusting laser beam zero positions, the laser transmitting vehicle comprises a laser transmitter, an optical aiming device, a direction adjusting mechanism, a vehicle body and a traveling mechanism, and the laser receiving target vehicle comprises a two-dimension area array laser receiving target, a data processing computer and a vehicle body portion. The rail geometrical state laser measuring apparatus utilizes alignment characteristic of laser and the two-dimension area array laser receiving target to resolve difficult problems of geometrical state accurate measurement of speed-increase railway lines and passenger special line rails, and can detect and estimate smoothness of rails in high precision, and further, smoothness measurement distance can reach 200m. The rail geometrical state laser measuring apparatus not only can be utilized as measuring equipment for railway line completion acceptance, but also can be directly used for guiding daily maintenance operation of dreggy or sludgeless railway lines.

Description

The track geometry status laser measuring apparatus

[technical field]

The application relates to how much state laser measuring apparatus of a kind of railroad track, promptly utilizes the collimation property of laser that the railroad track state is measured.

[background technology]

Raising along with train running speed; how much states of railroad track are required also improving; in order to ensure the comfortableness of the safety and the passenger train operation of goods train operation, train wheel track intercropping in the past displays gradually with the raising of unconspicuous long track geometry irregularity (long wave) phenomenon along with train running speed.Track irregularity is a kind of external disturbance to the rail vehicle system, is the main root that travelled by vehicle portion produces vibrations even derailing.And the ride comfort difference of track also can make train wheel track contact surface be subjected to stronger impact force, quickens the wearing and tearing and the destruction of wheel track, and traffic safety is caused potential threat.

Metering system mainly contains following method at present:

(1) visual measuring method by the deviation of visual assessment straightway, because it is more influenced by human factor, so error is very big, can not adapt to the requirement of raising speed railway fully;

(2) string of a musical instrument mensuration utilizes the cotton rope and the Steel Ruler of 10 meters or other length to measure, because string of a musical instrument limited length, and cotton rope swing and artificial reading all can produce error, measures the measurement requirement that efficient and accuracy can not satisfy raising speed railway;

(3) utilize gauging rule to measure the gauge and level (curved section is " the superelevation ") parameter of track, artificial point-to-point measurement, shortcoming is that workload is big, efficient is low, data can not be analyzed continuously;

(4) existing trolley type track somascope is measured track height, rail to parameter, utilizes gyroscope to realize, civilian gyroscope precision is low to cause cumulative errors big, and the calibration operation difficulty, and certainty of measurement does not reach the raising speed railway requirement at all.

[summary of the invention]

The application is the problem that exists in the track irregularity measurement at existing detection technique behind the railway speed increase, and a kind of measureing equipment that utilizes laser alignment feature measurement track irregularity is provided.This laser measuring apparatus utilize laser beam measures track as reference line rail to, just, versed sine etc., have higher certainty of measurement; The use that the laser long-chord is measured has effectively enlarged the length of measuring basis string, can directly measure the uneven compliance of long wave of track, truly reflects track condition, and the smooth-going measurement zone segment length of track can reach 200m; By computer data are analyzed, directly obtained a result.

Track geometry status laser measuring apparatus (as Fig. 1) is accepted target car (27) by Laser emission car (26) and laser and is formed, they can one in front and one in back promote conjunction measuring in orbit, the setting laser reference line, measure the deviation between track and reference line, analysis-by-synthesis deviation data then draws the measurement result of track geometry status.

Wherein Laser emission car and laser are accepted target car (as Fig. 2,3) radio communication device (9) all are housed, and are used for the wireless remote control of exchanges data and laser direction; The Laser emission car is identical with the body construction that laser is accepted the target car, all is made up of structure car body (2) and measurement car body (11), and this is the branch body structure that is designed to for the ease of carrying, and reaches the spot to be assembled into whole the use.Structure car body (2) comprises basic strand of travelling wheel (5), travelling wheel locking device (1), odometer sensor (10); Measure car body (11) and comprise gauge measurement mechanism (16), gauge measurement mechanism telescoping mechanism (7), horizontal survey wheel (17), circuit board and battery (8), radio communication device (9).

Laser is accepted target car (as Fig. 2) and being comprised: two-dimensional array laser is accepted target (6), orientation adjustment mechanism (4), data processing computer (3), structure car body (2) and is measured car body (11).Laser emission car (as Fig. 3) comprising: generating laser (13), optical aiming device (14), orientation adjustment mechanism (15), structure car body (2) and measurement car body (11).

[description of drawings]

Fig. 1 is a track geometry status laser measuring apparatus fundamental diagram.

Fig. 2 laser is accepted target car schematic diagram.

Fig. 3 is a Laser emission car schematic diagram.

[specific embodiment]

By the first fixed laser car launcher of direction of measurement requirement (26), the locking device (1) on the locking travelling wheel (5) fixes the Laser emission car; Open the generating laser power supply, launch the beam of laser bundle, accept target (6) reception by the two-dimensional array laser that laser is accepted on the target car (27).By optical aiming device (14), direction adjustment device (15) laser beam being aimed at laser accepts the two-dimensional array laser of target car and accepts target zero reference point.This moment, laser beam promptly became the reference line of orbit measurement, and it is at the uniform velocity mobile to the Laser emission car that promotion laser is accepted the target car, and the relativeness of track and laser datum straight line is promptly accepted the target image data by two-dimensional array and handled in computer.

The application utilizes laser collimation technology and two-dimensional array laser to accept target, solved the measurement problem of the uneven compliance of track long wave, satisfy the needs of raise speed railway requirement high accuracy, high-reliability, high automation degree detecting effectively, improved the measurement level of orbit geometry parameter greatly.The use that the laser long-chord is measured has effectively enlarged the length of reference chord, can directly measure the long wave irregularity of track, truly reflects track condition, can detect high-quality track geometry status, and data can directly instruct the tamping car operation.

Claims

1. track geometry status laser measuring apparatus is used for how much states of railroad track and dynamically accurately measures, and its constitutive characteristic is: comprise that Laser emission car and laser accepts the target car, two measurement cars are cooperating in orbit; Laser emission car and laser are accepted the target car radio communication device all are housed, and realize the wireless remote control of exchanges data and laser direction; The Laser emission car all is identical with the body construction that laser is accepted the target car, all is made up of structure car body and measurement car body.

2. according to the described track geometry status laser measuring apparatus of claim 1, it is characterized in that laser accepts the target car and accept target, orientation adjustment mechanism, data by two-dimensional array laser and handle computer, structure car body and measure car body and form.

3. according to the described track geometry status laser measuring apparatus of claim 1, it is characterized in that the Laser emission car is by generating laser, optical aiming device, orientation adjustment mechanism, structure car body with measure car body and form.

4. according to what state laser measuring apparatus of the described track of claim 1, it is characterized in that the structure car body is made of basic strand of travelling wheel, travelling wheel locking device, odometer sensor; Measure car body and also comprise gauge measurement mechanism, gauge measurement mechanism telescoping mechanism, horizontal survey wheel, circuit board and battery, radio communication device.