CN110987342B - Dynamic performance test device of current collector - Google Patents
Dynamic performance test device of current collector Download PDFInfo
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- CN110987342B CN110987342B CN201911201069.XA CN201911201069A CN110987342B CN 110987342 B CN110987342 B CN 110987342B CN 201911201069 A CN201911201069 A CN 201911201069A CN 110987342 B CN110987342 B CN 110987342B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/06—Multidirectional test stands
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
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- General Physics & Mathematics (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention provides a dynamic performance test device of a current collector, which drives a vertical vibration exciter, a transverse vibration exciter and a longitudinal vibration exciter to respectively generate vertical vibration, transverse vibration and longitudinal vibration through a hydraulic servo control system, transmits the vibration in all directions to the current collector to drive the current collector to vibrate, thereby simulating the vibration effect of a vehicle or a bogie on the current collector in actual operation, a motor controller drives a motor to drive a rotating third rail to rotate, so that the rotating third rail is in sliding contact with the current collector to simulate the sliding contact of the current collector and the third rail, and the hydraulic servo control system drives a rail high vibration exciter to vibrate to drive the rotating third rail to vibrate vertical to a rail surface to simulate the dynamic height of the third rail in actual operation. The dynamic performance of the current collector is obtained by simulating the service environment of the current collector in the actual operation process without testing on site, so that the test verification efficiency is improved, a large amount of test data can be obtained in time, and the design and research of the current collector product are supported.
Description
Technical Field
The invention relates to the field of rail transit, in particular to a dynamic performance testing device of a current collector.
Background
With the vigorous development of urban rail transit, the third rail has the advantages of easy installation, convenient maintenance, simple maintenance, long service life and the like, so that the current collection of the third rail becomes one of the main current collection modes of urban rail transit vehicles. The third rail current collection is mainly to dynamically take current from the third rail for the train through a current collector installed on the train.
The good contact between the current collector and the third rail is a precondition for ensuring stable current collection and safe operation of the train, the current collector is in sliding contact with the third rail in a current collection state, the vibration characteristic of the current collector influences the contact performance of the current collector and the third rail, and thus the stability of current collection and the safety of train operation are determined. In the prior art, a dynamic performance test is performed on the current collector on site, a large amount of resources are consumed in the site test, a large amount of test data cannot be obtained in time, and the design and the research of a third rail current collector product are not facilitated.
Disclosure of Invention
The invention aims to solve the technical problem of providing a dynamic performance testing device of a current collector, which can obtain the dynamic performance of the current collector by simulating the service environment of the current collector in the actual operation process without testing on site, thereby improving the testing verification efficiency, acquiring a large amount of test data in time and supporting the design and research of current collector products.
In order to achieve the purpose, the invention provides the following technical scheme:
a dynamic performance testing device of a current collector comprises:
the device comprises a three-way hydraulic excitation platform, a vertical vibration exciter, a transverse vibration exciter, a longitudinal vibration exciter, a current collector, a rotary third rail, a motor installation platform, a hydraulic servo control system, a motor controller and at least one rail height vibration exciter;
the vertical vibration exciter is arranged on a vertical platform of the three-way hydraulic vibration excitation platform, the transverse vibration exciter is arranged on a transverse platform of the three-way hydraulic vibration excitation platform, the longitudinal vibration exciter is arranged on a longitudinal platform of the three-way hydraulic vibration excitation platform, the current collector is arranged at the vibration end of the three-way hydraulic vibration excitation platform, the vertical vibration exciter, the transverse vibration exciter and the longitudinal vibration exciter are all connected with the hydraulic servo control system, and the hydraulic servo control system is used for driving the vertical vibration exciter, the transverse vibration exciter and the longitudinal vibration exciter to vibrate so as to drive the current collector to vibrate;
the motor mounting platform with rotatory third rail is connected, the motor is installed on the motor mounting platform, every the high vibration exciter of rail connect in on the motor mounting platform, and with hydraulic servo control system is connected, hydraulic servo control system is used for driving every the vibration of the high vibration exciter of rail vibrates, in order to drive the vibration of rotatory third rail perpendicular to rail face, the motor with machine controller is connected, machine controller is used for driving the motor drives rotatory third rail with the current collector sliding contact.
In the above device, optionally, the rotating third rail is a composite third rail with upper, lower and side flows.
In the above device, optionally, if the number of the rail height vibration exciters is one, the motor mounting platform is a bidirectional moving platform capable of switching vertically and horizontally.
In the above device, optionally, if the number of the rail height vibration exciters is two, the bottom and the side of the motor mounting platform are respectively connected with one rail height vibration exciter.
Above-mentioned device, optionally, the high vibration exciter of rail with motor mounting platform links to each other, specifically is:
and an oil cylinder piston rod of the rail height vibration exciter is connected with the motor mounting platform.
The above apparatus, optionally, further comprises:
a control host;
the control host is respectively connected with the hydraulic servo control system and the motor controller and is used for synchronously controlling the hydraulic servo control system and the motor controller.
The above apparatus, optionally, further comprises:
a mounting seat;
the current collector is installed at the vibration end of the three-way hydraulic vibration excitation platform through the installation seat.
In the above device, optionally, the rotating third rail is of a disc structure.
The above apparatus, optionally, further comprises:
a rotating shaft;
the motor mounting platform is connected with the rotating third rail through the rotating shaft.
Above-mentioned device, optionally, vertical vibration exciter, horizontal vibration exciter and longitudinal vibration exciter all are connected with hydraulic servo control system includes:
and the vertical vibration exciter, the transverse vibration exciter and the longitudinal vibration exciter are all in communication connection with the hydraulic servo control system.
Compared with the prior art, the invention has the following advantages:
the invention provides a dynamic performance test device of a current collector, which drives a vertical vibration exciter, a transverse vibration exciter and a longitudinal vibration exciter to respectively generate vertical vibration, transverse vibration and longitudinal vibration through a hydraulic servo control system, and transmits the vibration in each direction to the current collector to drive the current collector to vibrate, thereby simulating the vibration effect of a vehicle or a bogie on the current collector in actual operation. By applying the dynamic performance experimental device of the current collector, the dynamic performance of the current collector is obtained by simulating the service environment of the current collector in the actual operation process without testing on site, so that the test verification efficiency is improved, a large amount of test data can be obtained in time, and the design and research of the current collector product are supported.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a dynamic performance testing apparatus of a current collector provided by the present invention;
fig. 2 is a schematic structural diagram of a dynamic performance testing apparatus of a current collector provided in the present invention;
fig. 3 is a schematic structural diagram of a dynamic performance testing apparatus of a current collector provided in the present invention;
fig. 4 is a schematic structural diagram of a dynamic performance testing apparatus of a current collector provided in the present invention.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
The structural schematic diagram of the dynamic performance test device of the current collector provided by the embodiment of the present invention is shown in fig. 1 and fig. 2, where fig. 1 is suitable for a current collector in a lower current collection mode, and specifically may include a three-way hydraulic excitation platform 1, a vertical vibration exciter 2, a transverse vibration exciter 3, a longitudinal vibration exciter 4, a current collector 5, a rotating third rail 6, a motor 7, a motor mounting platform 8, a hydraulic servo control system 9, a motor controller 10, and at least one rail height vibration exciter 11;
the vertical vibration exciter 2 is arranged on a vertical platform 1-1 of the three-way hydraulic vibration excitation platform 1, the transverse vibration exciter 3 is arranged on a transverse platform 1-2 of the three-way hydraulic vibration excitation platform 1, the longitudinal vibration exciter 4 is arranged on a longitudinal platform 1-3 of the three-way hydraulic vibration excitation platform 1, the current collector 5 is arranged at a vibration end of the three-way hydraulic vibration excitation platform 1, the vertical vibration exciter 2, the transverse vibration exciter 3 and the longitudinal vibration exciter 4 are all connected with a hydraulic servo control system 9, and the hydraulic servo control system 9 is used for driving the vertical vibration exciter 2, the transverse vibration exciter 3 and the longitudinal vibration exciter 4 to vibrate so as to drive the current collector 5 to vibrate;
In the device provided by the embodiment of the invention, the hydraulic servo control system 9 drives the vertical vibration exciter 2, the transverse vibration exciter 3 and the longitudinal vibration exciter 4 arranged on the three-way hydraulic vibration excitation platform 1 to respectively generate vertical vibration, transverse vibration and longitudinal vibration according to the received first vibration signal, namely the vertical vibration exciter 2 generates vertical vibration, the transverse vibration and the longitudinal vibration, the transverse vibration exciter 3 generates transverse vibration, the longitudinal vibration exciter 4 generates longitudinal vibration, and when the vertical vibration exciter 2, the transverse vibration exciter 3 and the longitudinal vibration exciter 4 vibrate, the vibration is transmitted to the current collector 5 through the three-way hydraulic vibration excitation platform 1, so that the current collector 5 simultaneously receives vertical, transverse and longitudinal vibration, and the vibration effect of a vehicle or a bogie on the current collector 5 in actual operation is simulated.
In the device provided by the embodiment of the invention, the hydraulic servo control system 9 drives the rail height vibration exciter 11 to generate vibration according to the received second vibration signal, and transmits the vibration to the rotary third rail 6 through the motor mounting platform 8 to drive the rotary third rail 6 to vibrate perpendicular to the rail surface, so that the dynamic height of the third rail in the actual operation process is simulated, and optionally, the dynamic height of the third rail is set to be greater than the upper limit height of the working position of the current collector 5, so that the dead zone of the third rail is simulated.
In the apparatus provided in the embodiment of the present invention, the motor controller 10 drives the motor 7 to drive the rotating third rail 6 to rotate according to the received motor signal, so that the rotating third rail 6 is in sliding contact with the current collector 5, thereby simulating the sliding contact between the current collector 5 and the third rail in an actual operation process, that is, simulating a sliding speed of a collector shoe on the third rail, where the collector shoe is the current collector 5. It should be noted that the dynamic height of the third rail during actual operation is simulated, and the sliding contact between the current collector 5 and the third rail is simulated, that is, the dynamic behavior of the third rail is simulated.
Optionally, the first vibration signal may be a vertical, transverse and longitudinal displacement signal, or a vertical, transverse and longitudinal acceleration signal, the second vibration signal may be a third rail dynamic height signal, and the motor signal may be a train running speed signal; alternatively, the displacement signal, the acceleration signal and the third rail dynamic height signal may be time domain or frequency domain signals from which noise has been removed.
Optionally, the vertical vibration exciter 2, the transverse vibration exciter 3 and the longitudinal vibration exciter 4 are all in communication connection with the hydraulic servo control system 9, the rail height vibration exciter 11 is in communication connection with the hydraulic servo control system 9, and the motor 7 is also in communication connection with the motor controller 10.
Optionally, under the condition of simulating vehicle or bogie vibration and third rail dynamic behavior, dynamic parameters such as rail shoe contact force, vertical displacement of the current collector sliding plate, acceleration of the current collector swing arm and the like are obtained, so that the dynamic performance of the current collector 5 is effectively evaluated.
By applying the dynamic performance experimental device of the current collector provided by the embodiment of the invention, the dynamic performance of the current collector can be obtained by simulating the dynamic interaction between the current collector and the rotating third rail in the actual operation process, namely simulating and realizing the vibration effect of a train on the current collector, the dynamic height of the third rail and the sliding contact between the current collector and the third rail in the actual operation process of the train without testing on site, so that the test verification efficiency is improved, a large amount of test data can be obtained in time, and the design and research of a current collector product are supported.
According to the dynamic performance test device provided by the embodiment of the invention, the rotary third rail 6 is a composite third rail with upper, lower and side-surface current collection, when the rotary third rail 6 is an upper current collection, please refer to fig. 1, the rail height vibration exciter 11 is installed at the bottom of the motor installation platform 8, and applies vibration perpendicular to the rail surface to the rotary third rail 6; when the rotating third rail 6 is a lower current-receiving part, please refer to fig. 3, the rail height exciter 11 is installed at the bottom of the motor mounting platform 8, and applies vibration perpendicular to the rail surface to the rotating third rail 6; when the rotating third rail 6 is subjected to side current, referring to fig. 4, the rail height exciter 11 is installed on the side of the motor mounting platform 8, and applies vibration perpendicular to the rail surface to the rotating third rail 6.
Optionally, in the apparatus provided in the embodiment of the present invention, the motor mounting platform 8 may be a bidirectional moving platform that is vertically and laterally switched, and is configured with a rail height vibration exciter 11 for applying vibration perpendicular to a rail surface to the rotating third rail 6; the motor mounting platform 8 may also be a platform incapable of vertical and horizontal switching, and is configured with two rail height vibration exciters 11, one rail height vibration exciter 11 is arranged at the bottom of the motor mounting platform 8, and the other rail height vibration exciter 11 is arranged at the side of the motor mounting platform 8.
It should be noted that the rail height vibration exciter 11 may be disposed on the motor mounting platform 8 through a detachable interface, and the rail height vibration exciter 11 may be connected to the motor mounting platform 8, where an oil cylinder piston of the rail height vibration exciter 11 is connected to the motor mounting platform 8.
The dynamic performance test device of the current collector provided by the embodiment of the invention further comprises:
a control host 12;
the control host 12 is respectively connected with the hydraulic servo control system 9 and the motor controller 10, and is used for controlling the hydraulic servo control system 9 and the motor controller 10.
Optionally, in the apparatus provided in the embodiment of the present invention, the current collector 5 may be mounted at a vibration end of the three-way hydraulic excitation platform 1 through a mounting seat.
Optionally, the apparatus provided in the embodiment of the present invention further includes a rotating shaft 13, and the motor mounting platform 8 is connected to the rotating third rail 6 through the rotating shaft 13.
In the dynamic performance testing device of the current collector provided by the embodiment of the invention, data of vehicle or bogie vibration and third rail dynamic behavior obtained by actual line operation or obtained by simulation calculation is stored in the control host 12 in advance. Optionally, the vehicle or bogie vibration data may be vertical, transverse and longitudinal displacement signals or acceleration signals, and the third rail dynamic behavior data includes a train running speed signal and a third rail dynamic height signal.
Optionally, as shown in fig. 2, the controlling host 12 controls the hydraulic servo control system 9 and the motor controller 10 specifically as follows:
the control host 12 transmits the vibration data of the vehicle or the bogie to the hydraulic servo control system 9 to control the hydraulic servo control system 9 to drive the vertical vibration exciter 2, the transverse vibration exciter 3 and the longitudinal vibration exciter 4 in the three-way hydraulic vibration excitation platform 1 to vibrate so as to simulate the vibration of the vehicle or the bogie in the running process of the train, because the vertical vibration exciter 2, the transverse vibration exciter 3 and the longitudinal vibration exciter 4 are respectively arranged on the vertical platform 1-1, the transverse platform 1-2 and the longitudinal platform 1-3 of the three-way hydraulic vibration excitation platform 1, and the current collector 5 is also arranged on the mounting seat at the vibration end of the three-way hydraulic vibration excitation platform 1, therefore, when the vertical vibration exciter 2, the transverse vibration exciter 3 and the longitudinal vibration exciter 4 vibrate, the vibration can be transmitted to the current collector 5 through the three-way hydraulic vibration exciting platform 1, and the vibration of a vehicle or a bogie in the running process of a train can be simulated.
The control host 12 transmits a third rail dynamic height signal in the data of the third rail dynamic behavior to the hydraulic servo control system 9, the control rail high vibration exciter 11 generates vibration perpendicular to the rail surface, because an oil cylinder piston of the rail high vibration exciter 11 is connected with the motor mounting platform 8, and the motor mounting platform 8 is connected with the rotary third rail 6 through the rotating shaft 13, vibration can be transmitted to the rotary third rail 6 through the motor mounting platform 8, and vibration perpendicular to the rail surface is applied to the rotary third rail 6, so that the change of the dynamic height of the third rail is simulated; the control host 12 transmits a train running speed signal in the third rail dynamic behavior data to the motor controller 10, and controls the motor controller 10 to drive the motor 7 to rotate, so that the rotating third rail 6 is driven to rotate by the rotating shaft 13, that is, the rotating third rail 6 and the current collector 5 slide relatively at a test speed, so that the rotating third rail 6 and the current collector 5 are in sliding contact, and the dynamic behavior of the third rail and the current collector 5 in the actual running process is simulated.
It should be noted that the control host 12 controls the hydraulic servo control system 9 and the motor controller 10 to implement synchronization and composition of vehicle or bogie vibration and third rail dynamic behavior simulation, and implement coordination of each motion in the simulation process.
It should be noted that, in the device provided in the embodiment of the present invention, the rotating third rail 6 may be a disk structure, and the rotating third rail 6 of the disk structure is applied, so that the current collector 5 and the rotating third rail 6 are in sliding contact under the condition that there is no relative displacement to the ground of the current collector 5, and the dynamic performance test device of the current collector has no relative displacement to the ground, so that the occupied test space is small, and the dynamic performance test of the current collector is easy to implement.
According to the dynamic performance test device of the current collector provided by the embodiment of the invention, the dynamic coupling of the current collector 5 and the third rail in the actual operation process is simulated through the vibration simulation of the rotating and loading frame and the dynamic behavior simulation of the third rail, the terminal can collect, store and calculate the operation speed, the contact pressure, the vertical displacement of the sliding plate and the acceleration of the swing arm of the current collector, and the vibration characteristics of the current collector 5 under the operation working conditions of inlet and outlet end elbows, different speed grades and the like are analyzed, so that the contact force of the current collector 5 and the dynamic change rule of the vertical displacement of the sliding plate are obtained under the condition of consistent interaction state with the actual operation rail shoes of a train, and the dynamic performance of the current collector 5 is comprehensively evaluated.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The dynamic performance testing device of the current collector provided by the invention is described in detail above, and a specific example is applied in the text to explain the principle and the implementation of the invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A dynamic performance test device of a current collector is characterized by comprising:
the device comprises a three-way hydraulic excitation platform (1), a vertical vibration exciter (2), a transverse vibration exciter (3), a longitudinal vibration exciter (4), a current collector (5), a rotary third rail (6), a motor (7), a motor mounting platform (8), a hydraulic servo control system (9), a motor controller (10) and at least one rail height vibration exciter (11);
the vertical vibration exciter (2) is arranged on a vertical platform (1-1) of the three-way hydraulic vibration exciting platform (1), the transverse vibration exciter (3) is arranged on a transverse platform (1-2) of the three-way hydraulic vibration exciting platform (1), the longitudinal vibration exciter (4) is arranged on a longitudinal platform (1-3) of the three-way hydraulic vibration exciting platform (1), the current collector (5) is arranged at the vibration end of the three-way hydraulic excitation platform (1), the vertical vibration exciter (2), the transverse vibration exciter (3) and the longitudinal vibration exciter (4) are all connected with the hydraulic servo control system (9), the hydraulic servo control system (9) is used for driving the vertical vibration exciter (2), the transverse vibration exciter (3) and the longitudinal vibration exciter (4) to vibrate so as to drive the current collector (5) to vibrate;
the motor mounting platform (8) is connected with the rotary third rail (6), the motor (7) is mounted on the motor mounting platform (8), each rail high vibration exciter (11) is connected to the motor mounting platform (8) and is connected with the hydraulic servo control system (9), the hydraulic servo control system (9) is used for driving each rail high vibration exciter (11) to vibrate so as to drive the rotary third rail (6) to vibrate perpendicular to a rail surface, the motor (7) is connected with the motor controller (10), and the motor controller (10) is used for driving the motor (7) to drive the rotary third rail (6) to be in sliding contact with the current collector (5);
the device, still include:
and setting the dynamic height of the rotating third rail (6) to be greater than the upper limit height of the working position of the current collector (5).
2. The device according to claim 1, characterized in that the rotating third rail (6) is a composite third rail with upper, lower and side flows.
3. The device according to claim 2, characterized in that if the number of the rail height exciters (11) is one, the motor mounting platform (8) is a bidirectional moving platform which is switched vertically and laterally.
4. Device according to claim 2, characterized in that if the number of said rail height exciters (11) is two, one of said rail height exciters (11) is connected to the bottom and side of said motor mounting platform (8), respectively.
5. The device according to claim 1, characterized in that said rail height exciter (11) is associated with said motor mounting platform (8), in particular:
and an oil cylinder piston rod of the rail height vibration exciter (11) is connected with the motor mounting platform (8).
6. The apparatus of claim 1, further comprising:
a control host (12);
the control host (12) is respectively connected with the hydraulic servo control system (9) and the motor controller (10) and is used for synchronously controlling the hydraulic servo control system (9) and the motor controller (10).
7. The apparatus of claim 1, further comprising:
a mounting seat;
the current collector (5) is installed at the vibration end of the three-way hydraulic excitation platform (1) through the installation seat.
8. Device according to claim 1, characterized in that the rotating third rail (6) is of disc construction.
9. The apparatus of claim 1, further comprising:
a rotating shaft (13);
the motor mounting platform (8) is connected with the rotating third rail (6) through the rotating shaft (13).
10. Device according to claim 1, characterized in that said vertical exciter (2), said transverse exciter (3) and said longitudinal exciter (4) are connected to said hydraulic servo control system (9) comprising:
the vertical vibration exciter (2), the transverse vibration exciter (3) and the longitudinal vibration exciter (4) are in communication connection with the hydraulic servo control system (9).
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| CN201911201069.XA CN110987342B (en) | 2019-11-29 | 2019-11-29 | Dynamic performance test device of current collector |
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| CN201911201069.XA CN110987342B (en) | 2019-11-29 | 2019-11-29 | Dynamic performance test device of current collector |
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| CN110987342B true CN110987342B (en) | 2022-05-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111562076A (en) * | 2020-06-22 | 2020-08-21 | 西南交通大学 | Vibration test method and device for rigid contact net supporting device |
| CN113155488B (en) * | 2021-04-15 | 2023-05-23 | 中铁检验认证中心有限公司 | Shoe rail relation test stand |
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