阅读说明：本技术 一种铁路轨距保持能力检测装置 (Railway gauge holding capacity detection device ) 是由 王小铁 张可新 史建平 刘磊 朱少彤 赵泽乾 方兴 梁家健 许聪 梁策 田长海 于 2020-07-17 设计创作，主要内容包括：本发明实施例提供一种铁路轨距保持能力检测装置,包括：搭载平台；力加载部件,力加载部件安装于搭载平台上,力加载部件的施力端用于在铁路轨道的一侧施加静态加载力；测力部件,测力部件用于测量在轨道处于临界平衡状态下的静态加载力；本发明实现了对铁路轨距保持能力的量化测量,可以此实时了解铁路轨道可能存在的故障隐患,不仅检测成本低,效率高,而且可量化铁路检修线路的检修质量,确保了铁路运营的安全性和可靠性。(The embodiment of the invention provides a device for detecting the rail gauge holding capacity of a railway, which comprises: a mounting platform; the force loading component is arranged on the carrying platform, and the force application end of the force loading component is used for applying static loading force on one side of the railway track; the force measuring component is used for measuring the static loading force of the track in a critical balance state; the invention realizes the quantitative measurement of the railway gauge keeping capacity, can know the potential fault hazard possibly existing in the railway track in real time, has low detection cost and high efficiency, can quantify the maintenance quality of the railway maintenance line, and ensures the safety and the reliability of railway operation.)

1. A gauge holding capacity detecting apparatus, comprising:

a mounting platform;

the force loading component is arranged on the carrying platform, and the force application end of the force loading component is used for applying static loading force on one side of the railway track;

a force measuring component for measuring the static loading force with the rail in a critical equilibrium state.

2. The apparatus according to claim 1, wherein said force loading member comprises a hydraulic cylinder, and correspondingly, said force measuring member comprises a pressure gauge installed on a hydraulic oil path of said hydraulic cylinder.

3. The apparatus for detecting a holding ability of a railroad gauge according to claim 1, wherein the direction of the force applied by the force applying end of the force application member is adapted to be directed perpendicularly toward the web of the rail.

4. The apparatus according to claim 3, wherein said force applying member includes two members, and is opposed to said two rails.

5. The apparatus for detecting a holding capability of a railroad gauge according to claim 4, wherein the force applying directions of the force applying ends of the force applying members are arranged in the same linear direction in the opposite direction or in the opposite direction.

6. The apparatus of claim 1, wherein the ride platform is configured to movably rest on the track.

7. The apparatus for detecting the holding ability of a railroad track according to claim 6, wherein the mounting platform is provided with a traveling mechanism and a guide mechanism for matching with the rail.

8. The apparatus for detecting the holding ability of a railroad track according to claim 7, wherein the mounting platform includes a first longitudinal arm, a second longitudinal arm, and a transverse arm, one end of the transverse arm is connected to the first longitudinal arm, the other end of the transverse arm is connected to the second longitudinal arm, the first longitudinal arm and the second longitudinal arm are configured to face the two rails one by one, the first longitudinal arm and the second longitudinal arm are each provided with the traveling mechanism and the guide mechanism, and the transverse arm is provided with the force loading member.

9. The apparatus for detecting a holding capability of a railroad gauge according to any one of claims 1 to 8, further comprising: the force measuring component and the positioning module are respectively in communication connection with the display module.

10. The apparatus for detecting a gauge holding ability of a railway according to claim 9, further comprising: the force measuring component and the positioning module are respectively in communication connection with the data acquisition module, the data acquisition module is in communication connection with the processing module, and the processing module is in communication connection with the display module and the storage module.

Technical Field

The invention relates to the technical field of railway detection, in particular to a device for detecting the railway gauge holding capacity.

Background

The line maintenance and repair technology is an important component of a high-speed railway technology system and is a necessary guarantee for ensuring high reliability, high stability and high smoothness of railway operation. At present, the railway line inspection mainly adopts a comprehensive detection train and a flaw detection vehicle to monitor the dynamic geometrical state of a track and the damage state of a steel rail, and meanwhile, a track measuring instrument and a track inspection instrument are combined to carry out static track irregularity inspection.

The comprehensive detection train mainly adopts an inertial reference platform provided with a gyroscope and an accelerometer, a laser measuring device and a positioning device to detect the geometrical state of the track and the dynamic response acceleration of the vehicle. The flaw detection vehicle mainly utilizes an ultrasonic method to detect the flaw of the steel rail, can detect the fatigue defect and the welding defect in the range of the head and the web of the steel rail (including the vicinity of a joint), and is provided with automatic recording equipment to record a rail flaw signal, a mileage signal and a line characteristic signal.

Meanwhile, the track measuring instrument and the track inspection instrument mainly comprise a rack, a sensor detection system and a data acquisition processor, wherein the rack is in an H shape consisting of a left measuring arm, a right measuring arm and a measuring main shaft, the left measuring arm and the right measuring arm are parallel and respectively correspond to a left track and a right track, the left measuring arm and the right measuring arm are respectively provided with a traveling mechanism, and the measuring main shaft is perpendicular to the left measuring arm and the right measuring arm. A track gauge sensor and a horizontal sensor are arranged in the measuring main shaft to measure track gauge and horizontal parameters of the track. And height and rail direction sensors are arranged in the middle parts of the left and right measuring arms, and the height, the height and the rail direction of the left and right rails are detected simultaneously.

However, the conventional track detection equipment such as a comprehensive detection train, a flaw detection vehicle, a track measuring instrument, a track inspection instrument and the like can only detect the static geometric parameters of the track, and the track gauge holding capacity of the track is difficult to detect. Meanwhile, due to the shielding of the corresponding lower base plate of the rail, the reaming condition which possibly occurs in the bolt holes connecting the lower base plate and the sleeper is difficult to find through naked eyes, after the reaming occurs in the bolt holes of the sleeper, the rail cannot keep the gauge, and the rail easily moves outwards under the action of a train, so that the running train falls off the track and even derails. In addition, when the sleeper is decayed and loses the bearing capacity and the nail hole cannot hold the nail due to decay, the track gauge holding capacity of the track is also relatively large, which also puts higher requirements on maintenance and repair of railway lines.

In the existing published literature, calculation and analysis of the track gauge holding capacity of the elastic support block type ballast track of the heavy haul railway are provided, the accuracy of a single-node full-scale model is verified based on comparison between a calculation result of the single-node full-scale model of an elastic support block type ballastless track structure and an indoor test result, a multi-node full-scale model is established on the basis, the influence rule of the size of a support block and the rigidity of a track part on the track gauge holding capacity of the track is analyzed, and the relation between the size of the support block, the lateral rigidity of a support block sleeve shoe and the track gauge holding capacity is obtained. However, the solution shown in this document does not allow a quantitative measurement of the gauge-holding capacity of the rail.

Disclosure of Invention

The embodiment of the invention provides a device for detecting the rail gauge holding capacity of a railway, which is used for solving the problems that the conventional rail detection equipment can only detect the static geometric parameters of a rail, is difficult to detect the rail gauge holding capacity of the rail and is difficult to quantitatively measure the rail gauge holding capacity.

The embodiment of the invention provides a device for detecting the rail gauge holding capacity of a railway, which comprises: a mounting platform; the force loading component is arranged on the carrying platform, and the force application end of the force loading component is used for applying static loading force on one side of the railway track; a force measuring component for measuring the static loading force with the rail in a critical equilibrium state.

According to the device for detecting the railway gauge holding capacity, provided by the embodiment of the invention, the force loading component comprises a hydraulic oil cylinder, correspondingly, the force measuring component comprises a pressure gauge, and the pressure gauge is arranged on a hydraulic oil path of the hydraulic oil cylinder.

According to one embodiment of the railway gauge holding capacity detecting device of the present invention, the force measuring unit includes a force sensor mounted to the force application end of the force application unit.

According to the railway gauge holding capacity detecting apparatus of one embodiment of the present invention, the force application direction of the force application end of the force application member is used to be directed perpendicularly to the rail web of the rail.

According to the railway gauge holding capacity detecting apparatus of one embodiment of the present invention, the force applying member includes two members and is opposed to the two rails one by one.

According to the railway gauge holding capacity detecting apparatus of one embodiment of the present invention, the force applying directions of the force applying ends of the force applying members are arranged in the opposite direction or in the opposite direction along the same straight line.

According to the railway gauge holding capacity detection device provided by the embodiment of the invention, the carrying platform is used for movably bearing on the track.

According to the device for detecting the railway gauge holding capacity, which is disclosed by the embodiment of the invention, the carrying platform is provided with the travelling mechanism and the guide mechanism which are matched with the track.

According to the railway gauge holding capacity detection device provided by the embodiment of the invention, the carrying platform comprises a first longitudinal arm, a second longitudinal arm and a transverse arm, one end of the transverse arm is connected with the first longitudinal arm, the other end of the transverse arm is connected with the second longitudinal arm, the first longitudinal arm and the second longitudinal arm are used for being opposite to the two rails one by one, the travelling mechanism and the guide mechanism are arranged on the first longitudinal arm and the second longitudinal arm, and the force loading component is arranged on the transverse arm.

The apparatus for detecting a gauge holding ability of a railway according to an embodiment of the present invention further includes: the force measuring component and the positioning module are respectively in communication connection with the display module.

The apparatus for detecting a gauge holding ability of a railway according to an embodiment of the present invention further includes: the force measuring component and the positioning module are respectively in communication connection with the data acquisition module, the data acquisition module is in communication connection with the processing module, and the processing module is in communication connection with the display module and the storage module.

According to the railway gauge holding capacity detection device provided by the embodiment of the invention, the stable force application support is provided for the force loading component through the carrying platform, the static loading force can be applied to one side of the railway track by using the force application end of the force loading component, so that the railway track is gradually changed from the initial state to the critical balance state under the action of the static loading force until the railway track moves transversely.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a device for detecting a gauge holding capacity of a railway according to an embodiment of the present invention;

fig. 2 is a schematic control structure diagram of a device for detecting a gauge holding capacity of a railway according to an embodiment of the present invention.

In the figure, 1, track; 2. a mounting platform; 21. a first longitudinal arm; 22. a second longitudinal arm; 23. a transverse arm; 3. a traveling mechanism; 4. a guide mechanism; 5. a force loading member; 6. a force measuring component; 7. a positioning module; 8. a data acquisition module; 9. a processing module; 10. a storage module; 11. and a display module.

Detailed Description

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either 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 to those skilled in the art.

Referring to fig. 1, the present embodiment provides a gauge holding capacity detecting apparatus for a railway, including: a mounting platform 2; the force loading component 5 is arranged on the carrying platform 2, and the force application end of the force loading component 5 is used for applying static loading force on one side of the railway track 1; and the force measuring component 6 is used for measuring the static loading force when the track 1 is in a critical balance state.

Specifically, the detection device shown in this embodiment provides a stable force application support for the force loading component 5 through the carrying platform 2, and can apply a static loading force on one side of the railway track 1 by using the force application end of the force loading component 5, so that the railway track 1 gradually changes from an initial state to a critical balance state under the action of the static loading force until the rail 1 moves transversely.

It should be noted that the force loading component 5 shown in the present embodiment may be an electric push rod, an air cylinder, a hydraulic oil cylinder, etc., and the force loading component 5 in the present embodiment is preferably a hydraulic oil cylinder because the force load that can be loaded by the hydraulic oil cylinder is large and the force application is stable. The one side of the rail 1 shown in the present embodiment is understood to be the left side or the right side along the length direction of the rail 1, and is not particularly limited herein. Meanwhile, the critical equilibrium state shown in the present embodiment is understood to be a state in which the rail 1 is at a standstill at a time before the start of the lateral movement, and in the critical equilibrium state, the static load force applied to the rail reaches a maximum value.

In addition, it should be noted that in the prior art, track detection equipment such as a comprehensive detection train, a flaw detection vehicle, a track gauge, a track inspection tester and the like is generally adopted to realize the detection of the static geometric parameters of the track, and the quantitative detection of the track gauge keeping capability of the track is rarely carried out. For the reason, in the aspect of research on the track gauge maintaining capability, the existing technicians have a cognitive error zone and a research blind spot, and the main research direction is to determine the influencing factors on the track gauge maintaining capability so as to enhance the track gauge maintaining capability of the railway, for example: patent application No. 201721274133.3 discloses that the gauge holding capacity is improved by providing a clip that restricts the swinging of the rail; in railway construction periodicals, "calculation and analysis of gauge holding capacity of elastic supporting block type ballast tracks of heavy haul railways" is disclosed, which mainly researches the influence of lateral rigidity of supporting blocks and sleeve shoes of the supporting blocks on the gauge holding capacity of the tracks. Based on the cognitive error region and the research blind spot of the prior art, the quantitative measurement of the railway gauge maintaining capacity is not realized at present, and the improvement of the railway line maintenance and repair specification by a quantitative measurement mode is not further thought, so that the quality standard of the railway line is improved, and unnecessary safety accidents caused by the loss of the bearing capacity of sleeper decay and the failure of nail holding due to nail hole decay and the like are avoided.

Preferably, the mounting platform 2 is movably mounted on the track 1 in the embodiment, so that the railway track 1 can be measured for a long distance based on the movable function of the mounting platform 2.

Specifically, the mounting platform 2 shown in the present embodiment is provided with a traveling mechanism 3 and a guide mechanism 4 for matching with the rail 1. Wherein, running gear 3 includes walking driving motor and walking wheel, and walking wheel is connected to walking driving motor's output, and the walking wheel is put on track 1, and accessible remote control's mode control walking driving motor's rotation state. The guide mechanism 4 may be a roller guide shoe adapted to the rail 1, or may be a guide groove or a guide block adapted to the outer shape of the rail 1. In this way, the mounting platform 2 can stably travel along the railway track 1 autonomously based on the driving force provided by the traveling mechanism 3 and the guiding function of the guiding mechanism 4, so that the gauge holding capability can be measured at each position along the track 1.

Meanwhile, the guide mechanism 4 can stably support the carrying platform 2 on the track 1, ensure the stability of the carrying platform 2 in the measuring process and prevent the influence on the accurate measurement of the track gauge holding capacity of the track 1 caused by the instability of the carrying platform 2.

In a further preferred embodiment, in order to achieve miniaturization and portability of the mounting platform 2, the mounting platform 2 shown in this embodiment includes a first longitudinal arm 21, a second longitudinal arm 22 and a transverse arm 23, one end of the transverse arm 23 is connected to the first longitudinal arm 21, the other end is connected to the second longitudinal arm 22, the first longitudinal arm 21 and the second longitudinal arm 22 are used for being opposite to the two rails 1 one by one, the traveling mechanisms 3 and the guide mechanisms 4 are mounted on both the first longitudinal arm 21 and the second longitudinal arm 22, and the force loading component 5 is mounted on the transverse arm 23. The first longitudinal arm 21, the second longitudinal arm 22 and the transverse arm 23 may be specifically arranged in an "H" shape, and an armrest may also be disposed on the transverse arm 23, so that a worker may temporarily and manually push the carrying platform 2 to move along the track 1 through the armrest.

In one preferred embodiment, the force loading component 5 shown in this embodiment includes a hydraulic cylinder, and correspondingly, the force measuring component 6 includes a pressure gauge, and the pressure gauge is installed on a hydraulic oil path of the hydraulic cylinder; and/or the force application direction of the force application end of the force application part 5 is used for being vertically towards the rail web of the rail 1, the force application end of the force application part 5 can be specifically connected with one end of the transfer beam, and the other end of the transfer beam is vertically towards the rail web of the rail 1 along the force application direction.

Specifically, when the force loading component 5 shown in this embodiment is preferably a hydraulic oil cylinder, the static loading force exerted on the rail 1 by the hydraulic oil cylinder can be accurately measured by a pressure gauge installed on a hydraulic oil path of the hydraulic oil cylinder based on a hydraulic force measurement principle known in the art, wherein when the hydraulic force measurement is performed, the static loading force is exerted on the rail 1 by the hydraulic oil cylinder through a piston rod of the hydraulic oil cylinder, so that the rail 1 gives a reaction force of the same magnitude to a piston rod of the hydraulic oil cylinder, the piston of the hydraulic oil cylinder uniformly transmits the reaction force to the hydraulic oil in the closed oil cylinder, and the force exerted on a unit area by the hydraulic oil is reflected on the pressure gauge, thereby realizing the quantitative display of the rail gauge holding capacity of the.

In a further preferred embodiment, in order to simultaneously achieve quantitative measurement of the rail gauge holding capacity of the two rails 1, two hydraulic cylinders may be specifically provided in this embodiment, the two hydraulic cylinders are opposite to the two rails 1 one by one, wherein for the arrangement of the two hydraulic cylinders with respect to the corresponding rails 1, the directions of the telescopic ends (force application ends) of the hydraulic cylinders may be the same direction or opposite directions, and this may not be specifically limited.

In a further preferred embodiment, in order to prevent the carrying platform 2 from being unstable due to unidirectional stress or unable to maintain a stable state due to unbalanced stress when the railway gauge holding capacity is quantitatively measured, the hydraulic cylinders shown in this embodiment may be specifically provided in two, and the extending ends of the two hydraulic cylinders may be specifically arranged in opposite directions or in opposite directions along the same straight line direction, so as to ensure that the carrying platform 2 is stable during measurement.

In another preferred embodiment, the force measuring unit 6 shown in this embodiment can be a force sensor known in the art, and the force sensor is mounted on the force applying end of the force loading unit 5, so that when the force loading unit 5 applies a static loading force to one side of the rail 1, the force sensor will be clamped between the force applying end of the force loading unit 5 and the rail 1, so that the static loading force applied to the rail 1 by the force loading unit 5 can be directly reflected by the force sensor.

As shown in fig. 2, based on the improvement of the above embodiment, the present embodiment further includes: the positioning module 7 and the display module 11, and the force measuring component 6 and the positioning module 7 are respectively connected with the display module 11 in a communication way.

Specifically, the positioning module 7 shown in this embodiment may be a GPS positioning module or a beidou positioning module known in the art, and may acquire the current geographical position information for detecting the track 1 based on the positioning module 7. The display module 11 shown in this embodiment may be a liquid crystal display known in the art, and may synchronously display the measurement data corresponding to the track gauge maintaining capability and the current position coordinates based on the display module 11, and may further perform a mapping display on the current detection position based on the information collected by the positioning module 7.

As shown in fig. 2, in a further preferred embodiment, the present embodiment further includes: the force measuring device comprises a data acquisition module 8, a processing module 9 and a storage module 10, wherein the force measuring component 6 and the positioning module 7 are respectively in communication connection with the data acquisition module 8, the data acquisition module 8 is in communication connection with the processing module 9, and the processing module 9 is in communication connection with a display module 11 and the storage module 10.

Specifically, the data acquisition module 8 shown in this embodiment may be an analog acquisition module known in the art, the data acquisition module 8 receives data acquired by the force measurement component 6 and the positioning module 7, and performs analog-to-digital conversion on the corresponding analog data, the data acquisition module 8 may be connected to the processing module 9 through an RS485 interface in a communication manner, the processing module 9 may be a single chip microcomputer or a PLC controller known in the art, the storage module 10 may be an SD card or a USB disk known in the art, the processing module 9 is connected to the SD card through an SD card slot in a communication manner, or is connected to the USB disk through a USB socket in a communication manner, and is connected to the display module 11 through a serial port in a communication manner. The processing module 9 displays the processed measured data characterizing the gauge holding capacity synchronously via the display module 11 and stores the corresponding data via the storage module 10.

Meanwhile, the processing module 9 also performs graded alarm through the display module 11 based on the stress state analysis processing of the rail 1. Setting the static loading force exerted on the track 1 by the force loading part 5 to be represented as F when the track 1 is in a critical balance state, and when the F is less than 4KN, representing that the track gauge holding capacity of the track 1 is poor, and performing red alarm warning through the display module 11; when F is more than or equal to 4KN and less than 10KN, the rail gauge keeping capability of the representation track 1 tends to have a bad development trend, and at the moment, a yellow alarm prompt is carried out through the display module 11; when F is more than or equal to 10KN and less than or equal to 16KN, representing that the track gauge keeping capacity of the track 1 is in a normal interval, and carrying out blue prompting through the display module 11; when F is larger than 16KN, the track gauge keeping capacity of the represented track 1 is better, and the display module 11 is used for carrying out green prompting.

In conclusion, the detection device of the embodiment can realize automatic quantitative detection of the gauge holding capacity of the railway, the method is suitable for large-scale and long-distance detection operation, has strong adaptability, is suitable for extreme detection environments such as low temperature, strong light, strong wind and the like, is particularly suitable for the environment with the temperature range of-40-70 degrees and the humidity of 10-90 percent, has no influence on the detection precision, meanwhile, the working stability is high, 24-hour full-year continuous barrier-free work can be realized, the automation and intelligence level of railway line maintenance is greatly improved, the condition that maintenance quality is influenced by factors such as fatigue and experience of maintenance personnel is avoided, a large amount of labor resources are saved, the maintenance cost is reduced, the maintenance efficiency is improved, the method can play an important role in the field of high-speed railway maintenance, and provides a powerful guarantee for ensuring the safety, reliability, comfort and punctuality of railway operation.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.