CN111121662A

CN111121662A - Vehicle-mounted track contour and irregularity detection device

Info

Publication number: CN111121662A
Application number: CN202010030525.5A
Authority: CN
Inventors: 干锋; 邬平波; 罗光兵; 李涛
Original assignee: Chengdu Huarui Zhichuang Rail Transit Technology Co Ltd
Current assignee: Chengdu Huarui Zhichuang Rail Transit Technology Co Ltd
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-05-08

Abstract

The invention discloses a vehicle-mounted track profile and irregularity detection device, and belongs to the field of track traffic measurement. The device comprises a framework arranged above a track, wheel sets are arranged at two ends of the framework, a fixed base is arranged at the bottom end of the framework and between the wheel sets, and a detection group for scanning the contour and irregularity of the track is arranged at the bottom side of the fixed base; the detection group comprises a plurality of groups of 1D sensors arranged at the bottom side of the fixed base and 2D sensors arranged at the bottom side of the fixed base, and the detection ends of the 1D sensors and the 2D sensors are arranged right above the track and face the track.

Description

Vehicle-mounted track contour and irregularity detection device

Technical Field

The invention relates to the field of rail traffic measurement, in particular to a vehicle-mounted rail profile and irregularity detection device.

Background

With the rapid development of rail transit, the running speed and running frequency of vehicles are continuously increased, and the problem of wheel-rail relationship is increasingly serious. The track is as the main bearing structure of the operation of vehicle, receives the impact of wheel pair obvious, leads to serious problems such as ripples mill, crackle, peeling off, fastener are not hard up and the track warp to the track surface, has caused the threat to vehicle safe operation. In order to prevent the malignant events, the track state must be comprehensively analyzed by necessary monitoring means.

The common rail state detection equipment has two modes of a portable device and a rail inspection train, the portable equipment adopts manual propulsion detection in an interval, the detection efficiency is low, and the rail state detection equipment is only suitable for daily inspection and regular inspection general inspection of a rail. The large-scale rail inspection train can effectively detect the states of track irregularity, track profile and track damage, thereby ensuring the safe operation of vehicles, but has high cost, is suitable for periodic detection, can not timely master the line change, and needs to be perfected in the aspect of maintenance decision. Therefore, it is necessary to develop a portable device for detecting the track state on board, which can find the track state in time and is convenient for maintenance.

Disclosure of Invention

The invention provides a vehicle-mounted track contour and irregularity detection device aiming at the defects of the prior art, and the specific technical scheme is as follows:

a vehicle-mounted track profile and irregularity detection device comprises a framework arranged above a track, wheel sets are arranged at two ends of the framework, a fixed base is arranged at the bottom end of the framework and between the wheel sets, and a detection group for scanning the wear and irregularity of the track profile is arranged at the bottom side of the fixed base; the detection group comprises a plurality of groups of 1D sensors arranged at the bottom side of the fixed base and 2D sensors arranged at the bottom side of the fixed base, and the detection ends of the 1D sensors and the 2D sensors are arranged right above the track and face the track.

Preferably, the outer side of the 1D sensor is sleeved with a first protective cover, and a first through hole is formed in the position, corresponding to the detection end of the 1D sensor, of the first protective cover.

Preferably, the outer side of the 2D sensor is sleeved with a second protective cover, and the 2D sensor is obliquely arranged in the second protective cover.

Preferably, a second through hole is formed in the second protective cover at a position corresponding to the detection end of the 2D sensor.

Preferably, the second through hole is arranged between the detection end of the 2D sensor and the surface to be measured of the track.

Preferably, the second protection cover is also obliquely arranged on the fixed base, and the inclination of the second protection cover is the same as that of the 2D sensor.

Preferably, the frame includes connecting portions provided on the wheelset and side sill bottoms provided between the two sets of connecting portions and for mounting the fixing base, the side sill bottoms being spaced from the rail by a distance smaller than the connecting portions.

Preferably, the top side of the fixed base is provided with a tilt sensor.

Preferably, the first protective cover is fixedly connected to the frame by a fixing plate.

Preferably, a plurality of groups of fixing hooks are arranged on the fixing base, and fixing threaded holes are formed in the fixing hooks.

The invention has the following beneficial effects:

the detection group is arranged on the framework, the 1D sensor and the 2D sensor which are arranged on the bottom side of the fixed base are used for carrying out non-contact detection on the steel rail, the position coordinates of the track are obtained through a laser triangulation distance measuring principle, and the three-dimensional profile of the track is obtained through coordinate transformation, so that the functions of detecting the running state of the running part and detecting the profile and the irregularity of the long-distance track in real time are realized. Meanwhile, the invention can be used in cooperation with various steel rail maintenance engineering vehicles such as a steel rail milling and grinding vehicle, a steel rail grinding vehicle and the like, and realizes real-time dynamic measurement and state maintenance of the steel rail profile during operation, thereby realizing comparison of the rail profile before and after operation, detecting the operation effect in time, greatly improving the detection work efficiency, and having high operation efficiency, accurate detection precision, strong data management and analysis functions and convenient assembly.

Drawings

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

FIG. 2 is a schematic 3D structure of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

fig. 4 is a bottom view of the present invention.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

Examples

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus once an item is defined in one figure, it is not further defined and explained by advocate in subsequent figures.

In the description of the present invention, it should be noted that the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "communicating," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 to those skilled in the art.

Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Referring to fig. 1 to 4, the present invention includes a frame 1 disposed on a rail, and a wheel set 2 disposed at two ends of the frame 1 and slidably connected to the rail, wherein two ends of the frame 1 are fixedly connected to the wheel set 2, and the wheel set 2 can drive the frame 1 to move along the direction of the rail. The framework 1 comprises connecting parts 11 arranged on the wheel pair 2 and side beam bottoms 12 arranged between the two groups of connecting parts 11, wherein the connecting parts 11 and the side beam bottoms 12 are integrally connected, and the distance between the side beam bottoms 12 and the rail is smaller than that between the connecting parts 11 and the rail. The bottom of the side beam bottom 12 is provided with a fixed base 3 above the track, and the bottom side of the fixed base 3 is provided with a detection group 4 for scanning the track profile abrasion and irregularity. The fixed base 3 is arranged at the bottom 12 of the side beam with smaller distance with the track, so that the distance between the detection group 4 and the track is shortened, the signal loss of the detection group 4 in the detection process is reduced, and the detection precision of the invention is improved.

With further reference to fig. 1 to 2, two sets of fixing hooks 31 are disposed on the top side of the fixing base 3, the two sets of fixing hooks 31 are respectively disposed in the middle of the fixing base 3 and at one end of the fixing base 3 away from the detecting group 4, fixing threaded holes 32 are disposed in the two sets of fixing hooks 31, and the fixing base 3 is mounted on the middle lower portion of the side beam of the frame 1 through the fixing hooks 31 and the bolts. Fixed baseplate 3 top side middle part is equipped with the angular transducer 9 that is used for the 3 gradients of side measurement fixed baseplate, and measurement personnel accessible angular transducer 9 measures the gradient at wheel hub operation in-process fixed baseplate 3, makes fixed baseplate 3 be in horizontal position in the testing process to guarantee to detect the detection precision of group 4.

With further reference to fig. 2 to 3, the detection group 4 includes two sets of 1D sensors 5 disposed on the bottom side of the fixing base 3 and a 2D sensor 6 disposed on the bottom side of the fixing base 3, the 2D sensor 6 is disposed between the two sets of 1D sensors 5, and the detection ends of the 1D sensors 5 and the 2D sensor 6 are both disposed directly above the vertical direction of the track and facing the track. Therefore, in the process that the wheel pair 2 moves along the track, the 1D sensor 5 and the 2D sensor 6 can constantly keep the detection ends thereof to be positioned right above the track for detection, so that the invention can detect the running state of the running part in real time and detect the contour and the irregularity of the long-distance track.

With further reference to fig. 2 to 4, the first protective cover 7 for protecting the 1D sensor 5 is sleeved outside the 1D sensor 5, and a first through hole 71 is formed in the position, corresponding to the detection end of the 1D sensor 5, of the first protective cover 7, so as to ensure that the detection signal of the 1D sensor 5 can pass through the first protective cover 7 and reach the rail to be detected. First protection casing 7 passes through fixed plate 10 and framework 1 fixed connection, and fixed plate 10 and fixed base 3 and first protection casing 7 all adopt welded mode fixed connection with fixed plate 10, avoid the 1D sensor 5 in first protection casing 7 and the first protection casing 7 to produce the position skew phenomenon because the shake in the wheel pair 2 operation process, and then influence 1D sensor 5's measurement accuracy.

Further refer to fig. 3 to 4, the second protective cover 8 used for protecting the 2D sensor 6 is sleeved on the outer side of the 2D sensor 6, the 2D sensor 6 is obliquely arranged in the second protective cover 8, the second protective cover 8 is also obliquely arranged on the fixed base 3, the second protective cover 8 is the same as the 2D sensor 6 in inclination, the 2D sensor 6 and the second protective cover 8 are obliquely arranged, so that the detection area of the 2D sensor 6 on the track is increased, and the detection range and the detection efficiency of the 2D sensor 6 are improved. The second through hole 81 is arranged at the position of the detection end of the second protection cover 8 corresponding to the 2D sensor 6, and the second through hole 81 is arranged between the detection end of the 2D sensor 6 and the rail to be detected so as to ensure that the detection signal of the 2D sensor 6 can pass through the second protection cover 8 and reach the rail to be detected.

It is to be noted that, in this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion, so that an article or apparatus including a series of elements includes not only those elements but also other elements not explicitly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional like elements in the article or device comprising the element.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The vehicle-mounted track contour and irregularity detection device is characterized by comprising a framework (1) arranged above a track, wheel sets (2) are arranged at two ends of the framework (1), a fixed base (3) is arranged at the bottom end of the framework (1) and between the wheel sets (2), and a detection group (4) for scanning the track contour and irregularity is arranged at the bottom side of the fixed base (3); the detection group (4) comprises a plurality of groups of 1D sensors (5) arranged on the bottom side of the fixed base (3) and 2D sensors (6) arranged on the bottom side of the fixed base (3), and the detection ends of the 1D sensors (5) and the 2D sensors (6) are arranged right above the vertical direction of the track and face the track.

2. The vehicle-mounted track profile and irregularity detection device according to claim 1, wherein a first protective cover (7) is sleeved outside the 1D sensor (5), and a first through hole (71) is formed in the position, corresponding to the detection end of the 1D sensor (5), of the first protective cover (7).

3. A vehicle-mounted track profile and irregularity detection device according to claim 1, wherein a second protective cover (8) is sleeved outside the 2D sensor (6), and the 2D sensor (6) is obliquely arranged in the second protective cover (8).

4. A vehicle mounted track profile and irregularity detection device according to claim 3, wherein a second through hole (81) is provided in the second protective cover (8) at a position corresponding to the detection end of the 2D sensor (6).

5. The vehicle-mounted track profile and irregularity detection device according to claim 4, wherein the second through hole (81) is disposed between the detection end of the 2D sensor (6) and the surface to be detected of the track.

6. A vehicle mounted track profile and irregularity detection device according to claim 3, wherein the second cover (8) is also obliquely arranged on the fixed base (3), the second cover (8) having the same inclination as the 2D sensor (6).

7. A vehicle-mounted track profile and irregularity detecting device according to claim 1, wherein the frame (1) includes connecting portions (11) provided on the wheel sets (2) and side beam bottoms (12) provided between the two sets of connecting portions (11) for mounting the fixed base (3), the side beam bottoms (12) being spaced from the track by a distance smaller than the distance between the connecting portions (11) and the track.

8. A vehicle mounted track profile and irregularity detection device according to claim 1, wherein the top side of the fixed base (3) is provided with a tilt sensor (9).

9. A vehicle mounted track profile and irregularity detection device according to claim 2, wherein the first protective cover (7) is fixedly connected to the frame (1) by means of a fixing plate (10).

10. The vehicle-mounted track profile and irregularity detection device according to claim 1, wherein a plurality of sets of fixing hooks (31) are provided on the fixing base (3), and fixing threaded holes (32) are provided in the fixing hooks (31).