CN216051259U - Testing system for motion state and inter-particle contact state of ballast particles - Google Patents
Testing system for motion state and inter-particle contact state of ballast particles Download PDFInfo
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- CN216051259U CN216051259U CN202121344885.9U CN202121344885U CN216051259U CN 216051259 U CN216051259 U CN 216051259U CN 202121344885 U CN202121344885 U CN 202121344885U CN 216051259 U CN216051259 U CN 216051259U
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Abstract
The utility model provides a system for testing the motion state and the contact state among ballast particles, which comprises a ballast bed (1), an information acquisition ballast group (2) and an acquisition system (3), wherein the information acquisition ballast group (2) is arranged in the ballast bed (1), and the acquisition device is in signal connection with the information acquisition ballast group (2); the information acquisition ballast group (2) comprises a plurality of information acquisition ballasts (21), and the information acquisition ballasts (21) are uniformly dispersed in the ballast track bed (1). The method does not change the original structure of the ballast bed, and accurately measures the movement state of the ballast bed particles and the contact state of the particles, thereby further evaluating the performance of the ballast bed.
Description
Technical Field
The utility model relates to the technical field of railway engineering testing, in particular to a system for testing the motion state of ballast particles and the contact state among the particles.
Background
The ballast track bed is the most important part in a ballast track structure, and the state of the ballast track bed has important significance on the economy and the safety of line operation. However, due to the granular property of the ballast bed, the mechanical behavior is very complex, and an effective and reliable detection means is lacked at present. How to accurately measure the motion state of the ballast particles and the contact state between the particles is a problem which is difficult to solve in the industry. The existing intelligent ballast technology has a plurality of defects: firstly, the manufacturing material of the existing sensor cannot simulate the physical properties of the real ballast such as hardness, quality and the like, and the distortion of the measurement result is inevitably caused; secondly, the existing intelligent ballast establishes a coordinate system instead of using a world coordinate system by taking the intelligent ballast as an original point, so that the test data cannot be integrally associated with a track bed, and the data interconnection of a plurality of intelligent ballasts cannot be realized.
A system for testing the motion state of ballast particles and the contact state among the particles is needed, and the problems are solved.
Disclosure of Invention
The utility model aims to solve the problems that the manufacturing material of the existing sensor can not simulate the physical properties such as hardness, quality and the like of a real railway ballast in the prior art, and the distortion of a measurement result is difficult to avoid; the method comprises the following steps that a coordinate system is established by taking an intelligent railway ballast as an original point instead of using a world coordinate system, so that the overall association of test data and a railway bed cannot be realized, and the data interconnection of a plurality of intelligent railway ballasts cannot be realized; the method has the advantages that the data provided by the existing intelligent railway ballast detection is limited, only the rotation angle and the acceleration under the condition of a non-real coordinate system can be obtained, and the analysis data of the angular velocity and the phase difference of the rotation angle in a certain moment cannot be obtained. The utility model provides a test system of contact state between ballast granule motion state and granule, adopt the shell material parcel sensor that is close to real ballast physical properties, measure ballast stress state, displacement, acceleration, angle change etc. realize angle self-correction through space coordinate system conversion, transmit the information gathered to data acquisition and analytic system through the bluetooth for further aassessment railway roadbed performance has solved above-mentioned problem.
The utility model provides a system for testing the motion state of ballast particles and the contact state among the particles, which comprises a ballast bed, an information acquisition ballast group and an acquisition system, wherein the information acquisition ballast group is arranged in the ballast bed; the information acquisition ballast group comprises a plurality of information acquisition ballasts, and the information acquisition ballasts are uniformly dispersed in the ballast track bed.
The utility model relates to a system for testing the motion state of ballast particles and the contact state among the particles, which is an optimal mode, the acquisition system comprises a power supply, a transceiver module, a coordinate system module and an analysis module, wherein the power supply is electrically connected with the transceiver module, the coordinate system module and the analysis module and is used for supplying power to the transceiver module, the coordinate system module and the analysis module, the coordinate system module is connected with the transceiver module and is used for receiving position information generated by information acquisition ballast, the coordinate system module is used for presetting a world coordinate system with ballast track bed position information and receiving position movement information received by the transceiver module, the analysis module is connected with the coordinate system module, and the motion state of the ballast particles and the contact state among the particles are analyzed according to the position information in the coordinate system module.
The utility model relates to a system for testing the movement state of ballast particles and the contact state among the particles, which is an optimal mode, wherein an information acquisition ballast comprises a first ballast shell, a second ballast shell and a sensor group, the first ballast shell and the second ballast shell are detachably connected, the first ballast shell and the second ballast shell are spliced to form a hollow structure, and the sensor group is arranged in the hollow structure enclosed by the first ballast shell and the second ballast shell.
As an optimal mode, the outer surface of the assembled first ballast shell and the outer surface of the assembled second ballast shell are formed by 3D printing of the outer surfaces of the ballast particles.
As an optimal mode, the quality and hardness of the information acquisition railway ballast are the same as those of the real railway ballast.
As an optimal mode, the sensor group comprises a mechanical sensor, a displacement sensor, an acceleration sensor and an angular velocity sensor.
As an optimal mode, the testing system for the motion state of the ballast particles and the contact state of the particles is characterized in that a sealing material is arranged between the first ballast shell and the second ballast shell.
According to the technical scheme, the railway ballast manufactured by adopting the specific material and the 3D scanning and printing technology has similar physical properties with the real railway ballast, and is placed in the railway bed, the original structure and the mechanical behavior of the railway bed are not changed, and the obtained data is real and reliable.
The utility model has the following beneficial effects:
the sensor is wrapped by the shell material which is close to the physical performance of a real ballast, the stress state, displacement, acceleration, angle change and the like of the ballast are measured, angle self-correction is realized through spatial coordinate system conversion, the collected information is transmitted to a data acquisition and analysis system through Bluetooth, the original structure of the ballast bed is not changed, the movement state of particles of the ballast bed and the contact state of the particles are accurately measured, and the ballast bed performance is further evaluated.
Drawings
FIG. 1 is a schematic view of a ballast particle motion state and inter-particle contact state testing system;
FIG. 2 is a schematic diagram of a ballast group for acquiring information of a system for testing the movement state and the contact state between ballast particles;
FIG. 3 is a schematic diagram of a system for acquiring a ballast particle motion state and an inter-particle contact state test system;
fig. 4 is a schematic diagram of a ballast information acquisition system for testing the movement state and the contact state between ballast particles.
Reference numerals:
1. a ballast track bed; 2. collecting information of a ballast group; 21. collecting information of the railway ballast; 211. a first ballast shell; 212. a second ballast shell; 213. a sensor group; 3. an acquisition system; 31. a power source; 32. a transceiver module; 33. a coordinate system module; 34. and an analysis module.
Detailed Description
The technical solutions in the embodiments of the present invention will be made clear below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
As shown in fig. 1, a system for testing a movement state of ballast particles and a contact state between the ballast particles includes a ballast bed 1, an information acquisition ballast group 2 and an acquisition system 3, the information acquisition ballast group 2 is disposed inside the ballast bed 1, and the acquisition device is in signal connection with the information acquisition ballast group 2.
As shown in fig. 2, the information acquisition ballast group 2 includes a plurality of information acquisition ballasts 21, and the information acquisition ballasts 21 are uniformly dispersed in the ballast bed 1.
As shown in fig. 3, the collection system 3 includes a power source 31, a transceiver module 32, a coordinate system module 33, and an analysis module 34, where the power source 31 is electrically connected to the transceiver module 32, the coordinate system module 33, and the analysis module 34, and is configured to supply power to the transceiver module 32, the coordinate system module 33, and the analysis module 34, where the coordinate system module 33 is connected to the transceiver module 32, the transceiver module 32 is configured to receive position information generated by the information collection ballast 21, the coordinate system module 33 is configured to preset a world coordinate system according to the position information of the ballast track bed 1 and receive position movement information received by the transceiver module 32, and the analysis module 34 is connected to the coordinate system module 33, and analyzes a motion state of the ballast particles and a contact state between the particles according to the position information in the coordinate system module 33.
As shown in fig. 4, the information collecting ballast 21 includes a first ballast housing 211, a second ballast housing 212, and a sensor group 213, the first ballast housing 211 and the second ballast housing 212 are detachably connected, the first ballast housing 211 and the second ballast housing 212 are spliced to form a hollow structure, and the sensor group 213 is disposed in the hollow structure surrounded by the first ballast housing 211 and the second ballast housing 212.
The outer surface of the first ballast shell 211 and the outer surface of the second ballast shell 212 after being spliced are formed by 3D printing of the outer surface of ballast particles. The mass and hardness of the information acquisition ballast 21 are the same as those of a real ballast, and the sensor group 213 comprises a mechanical sensor, a displacement sensor, an acceleration sensor and an angular velocity sensor. Sealing materials are arranged between the first ballast shell 211 and the second ballast shell 212.
The embodiment adopts a self-correction method of a space coordinate system, and can well link the data obtained by the intelligent ballasts.
The using method of the device comprises the following steps:
firstly, a ballast with a proper size is taken, an intelligent ballast shell is manufactured by utilizing a 3D scanning and 3D printing technology, a sensor is placed in the intelligent ballast shell, and the intelligent ballast shell is sealed, as shown in figure 1. The whole body is consistent with the appearance, the quality, the hardness and the like of a real ballast, the intelligent ballast can generate a motion state completely same as that of the actual ballast, and the acquired data are real and reliable. After assembly, the system needs to be debugged. The debugging method is that the intelligent ballast performs a series of known motions, and whether the intelligent ballast system works normally or not is judged by analyzing and comparing the acquired data with the known motions.
And secondly, after the intelligent ballast system is debugged, arranging the intelligent ballast system in the ballast bed. The device can be arranged at different positions of the track bed according to the test requirement, and the information of different positions is collected. Through bluetooth transmission system, convey data acquisition and display system, carry out real-time analysis and record. As shown in fig. 2.
During real-time analysis, the angle self-correction algorithm realized by spatial coordinate system conversion is as follows:
x=x′cos(γ)cos(β)+y′[cos(γ)sin(β)sin(α)-sin(γ)cos(α)]+z′[sin(γ)sin(α)+cos(γ)sin(β)cos(α)]
y=x′sin(γ)cos(β)+y′[sin(γ)sin(β)sin(α)+cos(γ)cos(α)]+z′[sin(γ)sin(β)cos(α)-cos(γ)sin(α)]
z=-x′sin(β)+y′cos(β)sin(α)+z′cos(β)cos(α)
the above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (7)
1. The utility model provides a test system of contact state between ballast granule motion state and granule which characterized in that: the system comprises a ballast bed (1), an information acquisition ballast group (2) and an acquisition system (3), wherein the information acquisition ballast group (2) is arranged in the ballast bed (1), and the acquisition device is in signal connection with the information acquisition ballast group (2); the information acquisition ballast group (2) comprises a plurality of information acquisition ballasts (21), and the information acquisition ballasts (21) are uniformly dispersed in the ballast track bed (1).
2. The ballast particle motion state and particle contact state testing system according to claim 1, wherein: collection system (3) include power (31), transceiver module (32), coordinate system module (33) and analysis module (34), power (31) with transceiver module (32) coordinate system module (33) with analysis module (34) electricity is connected, be used for transceiver module (32) coordinate system module (33) with analysis module (34) power supply, coordinate system module (33) with transceiver module (32) are connected, transceiver module (32) are used for receiving the position information that information acquisition ballast (21) produced, coordinate system module (33) are used for predetermineeing the basis there is the world coordinate system of ballast bed (1) position information and receives the position movement information that transceiver module (32) received, analysis module (34) are connected coordinate system module (33), according to position information in coordinate system module (33) carries out ballast granule motion state and contact between particles And (5) analyzing the state.
3. The ballast particle motion state and particle contact state testing system according to claim 1, wherein: the information acquisition ballast (21) comprises a first ballast shell (211), a second ballast shell (212) and a sensor group (213), the first ballast shell (211) and the second ballast shell (212) are detachably connected, the first ballast shell (211) and the second ballast shell (212) are spliced into a hollow structure, and the sensor group (213) is arranged in the hollow structure surrounded by the first ballast shell (211) and the second ballast shell (212).
4. The ballast particle motion state and particle contact state testing system according to claim 3, wherein: the outer surface of the spliced first ballast shell (211) and the spliced second ballast shell (212) is formed by 3D printing of the outer surface of ballast particles.
5. The ballast particle motion state and particle contact state testing system according to claim 3, wherein: the quality and the hardness of the information acquisition ballast (21) are the same as those of a real ballast.
6. The ballast particle motion state and particle contact state testing system according to claim 4, wherein: the sensor group (213) comprises a mechanical sensor, a displacement sensor, an acceleration sensor and an angular velocity sensor.
7. The ballast particle motion state and particle contact state testing system according to claim 3, wherein: and a sealing material is arranged between the first ballast shell (211) and the second ballast shell (212).
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN117490577A (en) * | 2023-12-25 | 2024-02-02 | 甘肃建投交通建设有限公司 | Method for measuring railway ballasted track ballasted particle migration |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN117490577A (en) * | 2023-12-25 | 2024-02-02 | 甘肃建投交通建设有限公司 | Method for measuring railway ballasted track ballasted particle migration |
CN117490577B (en) * | 2023-12-25 | 2024-03-15 | 甘肃建投交通建设有限公司 | Method for measuring railway ballasted track ballasted particle migration |
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