CN217521080U

CN217521080U - Component for improving high-speed steel rail flaw detection rate and rail flaw detection vehicle

Info

Publication number: CN217521080U
Application number: CN202122950711.3U
Authority: CN
Inventors: 彭召斌; 李帅源; 杨培俊; 董文强; 刘润林
Original assignee: Beijing Xinke Qiyuan Technology Co ltd
Current assignee: Beijing Xinke Qiyuan Technology Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-09-30
Anticipated expiration: 2031-11-29

Abstract

The utility model relates to a railway transportation technical field, in particular to a subassembly and track car of visiting for promoting high-speed rail detection rate of detecting a flaw. The utility model discloses an subassembly for promoting high-speed steel rail detection rate includes that the track detects a flaw wheelset and spontaneous self-acceptance probe, spontaneous self-acceptance probe assembly is in the wheel hub non-rotating part of the track wheel set of detecting a flaw still includes receiving probe, receiving probe assembly is in the wheel hub non-rotating part of the track wheel set of detecting a flaw, and be located spontaneous self-acceptance probe level is to periphery. The advantages are that: the device can receive echoes lost or weak in energy due to the position deviation of the probe, enhance the signal quality and improve the detection rate of high-speed steel rail flaw detection.

Description

Component for improving high-speed steel rail flaw detection rate and rail flaw detection vehicle

Technical Field

The utility model relates to a railway transportation technical field, in particular to a subassembly and track car of visiting a flaw for promoting high-speed rail detection rate.

Background

With the development of railway industry in China, higher requirements are put forward on steel rail flaw detection, the detection speed is required to be higher, the detection rate is higher, however, when the detection reaches a certain speed, the position deviation between the transmitting point and the receiving point of the traditional self-transmitting and self-receiving probe is accelerated, the offset is increased, the sensitivity of damage echo is greatly reduced, and the quality of echo signals is influenced.

In addition, it is necessary to develop a detection method capable of receiving echoes lost or weak in energy due to the position deviation of the probe, enhancing signal quality, and improving the detection rate of high-speed rail flaw detection.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a subassembly and track flaw detection car for promoting high-speed rail detection rate is provided, the effectual defect of overcoming prior art.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

an assembly for improving the detection rate of high-speed steel rail flaw detection. The self-transmitting and self-receiving wheel set comprises a rail flaw detection wheel set and a self-transmitting and self-receiving probe, wherein the self-transmitting and self-receiving probe is assembled on the non-rotating part of a hub of the rail flaw detection wheel set, and the receiving probe is assembled on the non-rotating part of the hub of the rail flaw detection wheel set and is positioned on the periphery of the self-transmitting and self-receiving probe in the horizontal direction.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, the receiving probe is arranged at any one end or two ends of the self-sending and self-receiving probe corresponding to the running direction of the hub of the rail flaw detection wheel set.

Further, the self-sending and self-receiving probe is arranged on any one side or two sides of the hub of the rail flaw detection wheel set corresponding to the self-sending and self-receiving probe.

Furthermore, a plurality of receiving probes are uniformly and annularly arranged around the self-generating and self-receiving probe.

The utility model has the advantages that: the device can receive echoes lost or weak in energy due to the position deviation of the probe, enhance the signal quality and improve the detection rate of high-speed steel rail flaw detection.

The rail flaw detection vehicle comprises an assembly for improving the flaw detection rate of the high-speed steel rail.

Drawings

FIG. 1 is a schematic diagram of a prior art transmitting signal without a receiving probe;

FIG. 2 is a schematic diagram of a prior art receiving probe without receiving signals;

FIG. 3 is a first schematic structural diagram of the assembly for improving the inspection yield of high-speed rail flaw detection according to the present invention;

fig. 4 is a schematic structural diagram of the receiving signal when the assembly for improving the flaw detection rate of the high-speed steel rail of the present invention is used.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a self-generating and self-receiving probe; 2. a probe is received.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

In the conventional technology, as shown in fig. 1 and 2, a self-transmitting and self-receiving probe 1 is arranged in a hub (a in the figure) of a rail flaw detection wheel set, the self-transmitting and self-receiving probe 1 is mounted on a stationary wedge block (a non-rotating part of the hub) in the hub, when a rail flaw is detected, the hub is positioned on a rail (b in the figure), and the self-transmitting and self-receiving probe 1 can receive an echo signal under the condition of low speed of a vehicle, and in the process of high-speed driving flaw detection, as shown in fig. 2, the self-transmitting and self-receiving probe 1 has high offset speed and large offset, so that a rail flaw echo signal is lost or has weak energy, the rail flaw detection is missed or displayed unclear, and the flaw detection quality and detection rate are reduced.

Example 1

As shown in fig. 3 and 4, the assembly for improving the high-speed rail flaw detection rate of the present embodiment includes a rail flaw detection wheel set and a self-transmitting and self-receiving probe 1, wherein the self-transmitting and self-receiving probe 1 is mounted on a non-rotating portion of a hub of the rail flaw detection wheel set, and further includes a receiving probe 2, and the receiving probe 2 is mounted on the non-rotating portion of the hub of the rail flaw detection wheel set and is located on a horizontal periphery of the self-transmitting and self-receiving probe 1.

In the embodiment, in the low-speed running flaw detection process, the flaw detection signal transmitted by the self-transmitting and self-receiving probe 1 can be received by the self-transmitting and self-receiving probe after being reflected by the track (as shown in fig. 3), in the high-speed running flaw detection process, the self-transmitting and self-receiving probe 1 has high offset speed and large offset, and at the moment, the lost echo signal of the rail flaw can be detected by the receiving probes 2 around the self-transmitting and self-receiving probe 1, so that the rail flaw detection omission or unclear display cannot be caused, and the flaw detection quality and detection rate cannot be influenced.

What needs to be supplemented is: the self-generating and self-receiving probe 1 and the receiving probe 2 both belong to a conventional flaw detection probe in a locomotive, and for the prior art, specific models and parameters are not described herein again.

In this embodiment, the receiving probe 2 generally includes the following layout manners:

1) the receiving probe 2 is arranged at any one end or two ends of the self-generating and self-receiving probe 1 corresponding to the wheel hub advancing direction of the rail flaw detection wheel set.

In the embodiment 1), specifically, if the wheel hub traveling direction of the rail flaw detection wheel set is set to the front-rear direction, the receiving probe 2 is disposed at a position immediately in front of and/or behind the self-transmitting and self-receiving probe 1.

2) The self-generating and self-receiving probe 1 is provided with the receiving probe 2 corresponding to any one side or two sides of the directions of the two sides of the hub of the rail flaw detection wheel set.

In the scheme 2), specifically, if the traveling direction of the hub of the rail flaw detection wheel set is set to be the front-back direction, the receiving probe 2 is arranged at a position adjacent to the left side and/or the right side of the self-transmitting and self-receiving probe 1.

3) A plurality of receiving probes 2 are uniformly and annularly arranged around the self-generating and self-receiving probe 1.

In the scheme 3), specifically, a plurality of receiving probes 2 are continuously arranged in a circle and are annularly arranged around the self-generating and self-receiving probe 1.

The following are specifically mentioned: the non-rotating part of the hub of the rail flaw detection wheel set refers to a wedge block which is stationary in the hub (the wedge block is provided in the conventional rail flaw detection vehicle, and the wedge block is not further explained here), and other suitable non-rotating parts (such as an outer bearing and the like) can be arranged on the hub.

The following are specifically mentioned: the lines with arrows in figures 1, 2, 3, 4 refer to the transmitted waves or echoes.

Example 2

A rail flaw detection vehicle comprises the assembly used for improving the flaw detection rate of high-speed steel rails in embodiment 1, wherein the assembly is used as a wheel set of the flaw detection vehicle and travels on a rail to detect flaws.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The utility model provides an subassembly for promoting high-speed steel rail detection rate of examining, includes that the track detects a flaw wheelset and spontaneous receipts probe (1), spontaneous receipts probe (1) assembly is in the wheel hub non-rotating portion of track detection wheelset, its characterized in that: the rail flaw detection wheel set further comprises a receiving probe (2), wherein the receiving probe (2) is assembled on the non-rotating portion of the hub of the rail flaw detection wheel set and is located on the periphery of the self-generating and self-receiving probe (1) in the horizontal direction.

2. The assembly for improving a high speed rail inspection pick rate of claim 1 wherein: the receiving probes (2) are arranged at any one end or two ends of the self-generating and self-receiving probe (1) corresponding to the traveling direction of the wheel hub of the rail flaw detection wheel set.

3. The assembly for improving the inspection detection rate of high-speed steel rails according to claim 2, wherein: the self-generating and self-receiving probe (1) is provided with the receiving probe (2) corresponding to any one side or two sides of the directions of the two sides of the hub of the rail flaw detection wheel set.

4. The assembly for improving a high speed rail inspection pick rate of claim 3 wherein: the periphery of the self-generating and self-receiving probe (1) is uniformly provided with a plurality of receiving probes (2) in a surrounding mode.

5. A rail flaw detection vehicle is characterized in that: an assembly for improving the inspection detection rate of high speed steel rails according to any one of claims 1 to 4.