CN210970700U - Pantograph carbon slide plate device of electrified train - Google Patents
Pantograph carbon slide plate device of electrified train Download PDFInfo
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- CN210970700U CN210970700U CN201921332641.1U CN201921332641U CN210970700U CN 210970700 U CN210970700 U CN 210970700U CN 201921332641 U CN201921332641 U CN 201921332641U CN 210970700 U CN210970700 U CN 210970700U
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Abstract
The utility model relates to an electrified train pantograph carbon slide device, including carbon slide, mount, slide mount pad, balance support frame and horizontal bracket, the carbon slide is installed and is formed carbon slide module in the mount, and the both ends of carbon slide module are installed on the slide mount pad, the slide mount pad passes through the balance support frame and installs on horizontal bracket, horizontal bracket connection pantograph still include the vibration converter along carbon slide module length direction installation. Compared with the prior art, the utility model discloses can control the undulant and the vibration amplitude of carbon slide of pantograph net contact force, realize carbon slide structural vibration energy transfer and conversion, control pantograph net developments shake unusual relatively to reduce the contact friction loss of pantograph carbon slide, and improve the current collection quality by the stationarity.
Description
Technical Field
The utility model belongs to the technical field of the electrified train pantograph and specifically relates to a carbon slide device of electrified train pantograph.
Background
The power of the electrified railway transport vehicle adopts a driving motor system, and a pantograph is a current receiving device of a rail transit train, is arranged on the roof of the locomotive and is one of key electrical equipment for the electrified train to obtain electric energy from a contact network. The pantograph structure generally comprises a pantograph head system of a slide plate strip, a balance support and a transverse bracket, a balance rod, an upper arm rod, a lower arm rod, a pull rod, a chassis and the like, and in order to meet the stability and continuity of current collection, the pantograph and a contact network (lead) are required to keep good following performance.
In the normal operation and running process of the train, due to excitation of the rolling dynamics of the wheel tracks such as the irregularity of the tracks, the polygon of the wheels, the roughness of the wheel tracks and the like to the train, excitation of a power system of a train system and the like, vibration of different amplitudes and different frequencies of a train body is caused, the vibration can be directly transmitted to a base of the pantograph through the train body, and then vibration of the pantograph is caused. The complex vibration and the dynamic characteristic of the sliding strip cause dynamic fluctuation of a pantograph-catenary contact force amplitude and a relative sliding amplitude at different positions of the carbon pantograph-contact plate, the different dynamic fluctuations at different positions can generate uneven abrasion of the carbon pantograph-contact plate, and the dynamic contact force and the dynamic relative sliding displacement caused by the vibration greatly accelerate the abrasion speed of the carbon pantograph-contact plate. Although the bow-shaped structure and the damping system of the pantograph can isolate, absorb and relieve part of high-frequency vibration, the vibration of middle and low frequencies (lower than 200HZ) can not be effectively isolated and absorbed, so that the high-amplitude vibration of the carbon sliding plate and the contact wire is caused, the carbon sliding plate of the pantograph is abnormally abraded, and even a pantograph-catenary accident is caused; the carbon sliding plate is abnormally worn, the service life of the carbon sliding plate is seriously shortened from normal general 80 weeks (1 year and half) to less than 1 week in a subway operation line, a large amount of manpower and financial resources are needed to be spent to replace the carbon sliding plate frequently, and the carbon sliding plate is a huge potential safety hazard.
At present, urban rail transit's underground line widely adopts rigid contact net, because rigid contact net compares elasticity little with flexible contact net, and the followup of bow net becomes poor, and for flexible contact net, rigid contact net is when the pantograph vibrates, and the danger that causes is bigger. At present, urban rail transit carbon slide super-abrasion (abnormal wear) phenomenon is more general, and this kind of phenomenon causes the potential safety hazard of rail transit operation and the increase of cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pantograph carbon slide plate device of an electrified train for overcoming the defects of the prior art.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides an electrified train pantograph carbon slide device, includes carbon slide, mount, slide mount pad, balance support frame and horizontal bracket, the carbon slide is installed and is formed carbon slide module in the mount, and the both ends of carbon slide module are installed on the slide mount pad, the slide mount pad passes through the balance support frame and installs on horizontal bracket, horizontal bracket connect the pantograph, still include the vibration converter along carbon slide module length direction installation.
Further, the vibration converter comprises at least one frequency-modulated resonant power damping unit, wherein each frequency-modulated resonant power damping unit comprises a resonant spring mechanism and a resonant mass mechanism, and the resonant spring mechanism wraps the resonant mass mechanism.
Further, the vibration converter comprises at least one frequency modulation resonance power damping unit, wherein each frequency modulation resonance power damping unit comprises a resonance spring mechanism and a resonance mass mechanism, and the resonance spring mechanism and the resonance mass mechanism are arranged in a stacking mode at intervals.
Further, the resonant spring mechanism is made of viscoelastic materials with complex stiffness damping characteristics.
Furthermore, each frequency-modulated harmonic vibration force damping unit is arranged below the fixed frame; or an inner cavity is arranged in the fixed frame, and the frequency modulation harmonic vibration force damping unit is arranged in the inner cavity.
Furthermore, the frequency-modulated harmonic vibration force damping unit is a granular collision body, and each granular collision body is formed by wrapping a resonant mass mechanism by a resonant spring mechanism.
Furthermore, the frequency modulation resonance power damping units are discretely arranged along the length direction of the carbon sliding plate module according to the design requirement of correcting the abnormal abrasion shape of the carbon sliding plate, the abnormal abrasion shape of the carbon sliding plate is that the abnormal abrasion shape of the upper surface of the carbon sliding plate, which is abraded by the mesh wires and forms different abrasion amounts along the length direction, corresponds to the modal shape of the carbon sliding plate, the modal shape of the carbon sliding plate is the modal shape of the carbon sliding plate, which is vertically, transversely and torsionally under the constraint condition that the carbon sliding plate operates under load, and the modal shape of the carbon sliding plate corresponds to the corresponding resonance frequency of the carbon sliding plate module.
The vibration converter is arranged on the bottom plate, and the bottom plate is connected with the fixing frame through the connecting piece.
Compared with the prior art, the utility model has the advantages of it is following:
1. the utility model discloses a set up vibration converter on the fixed plate for the unusual dynamic shape of revising the carbon slide controls the undulant and the vibration amplitude of carbon slide of pantograph net contact force, and vibration converter adopts specific structure and overall arrangement to realize carbon slide structural vibration energy transfer and conversion, and the control pantograph net is unusual developments relatively and shimmys, thereby reduces the contact friction loss of pantograph carbon slide, and improves the current collection stationarity, improves the current collection quality.
2. The utility model discloses simple structure, it is convenient to implement, both can directly use on current pantograph carbon slide, also can introduce in newly-designed pantograph carbon slide.
Drawings
Fig. 1 is a schematic structural diagram of the first embodiment.
Fig. 2 is a schematic structural diagram of a vibration transducer according to an embodiment.
Fig. 3 is a schematic side cross-sectional view of a vibration transducer according to an embodiment.
Fig. 4 is a schematic structural diagram of the second embodiment.
Fig. 5 is a schematic structural diagram of the third embodiment.
Fig. 6 is a schematic view showing the structure of an abnormal wear shape.
Fig. 7 is a schematic structural view of a carbon slide mode shape.
Fig. 8 is a schematic structural diagram of a fourth embodiment.
Fig. 9 is a schematic structural diagram of a fifth embodiment.
Fig. 10 is a schematic structural view of the sixth embodiment.
Fig. 11 is a schematic structural diagram of the seventh embodiment.
Reference numerals: 1. the carbon slide plate comprises a carbon slide plate module, 11, a carbon slide plate, 12, a fixing frame, 13, an inner cavity, 2, a slide plate mounting seat, 3, a balance supporting frame, 4, a transverse bracket, 5, a frequency modulation resonance power damping unit, 51, a resonance spring mechanism, 52, a resonance mass mechanism, 6, a mounting module, 61, a bottom plate, 62, a connecting piece, 7, an abnormal wear shape, 71 and a carbon slide plate modal shape.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example one
Some parts of different types of pantographs are possibly different, but the basic structure of the pantographs is very small, and the pantograph structure generally comprises a pantograph head system, a balance bar, an upper arm bar, a lower arm bar, a pull rod, an underframe and the like. As shown in fig. 1, the embodiment provides a carbon pantograph slider device for an electrified train, which comprises a carbon slider 11, a fixed frame 12, a slider mounting seat 2, a balance support frame 3, a vibration converter and a cross bracket 4, wherein the cross bracket 4 is connected with a pantograph head system, the carbon slider 11 is installed in the fixed frame 12 to form a carbon slider module 1, two ends of the carbon slider module 1 are installed on the slider mounting seat 2, and the slider mounting seat 2 is installed on the cross bracket 4 through the balance support frame 3. The vibration converter is installed below the fixing frame 12 along the length direction of the carbon slide module 1.
As shown in fig. 2, the vibration converter includes at least one frequency-modulated harmonic vibration force damping unit 5, and the present embodiment employs two left and right frequency-modulated harmonic vibration force damping units 5. Wherein each frequency-modulated harmonic vibration force is dampedThe unit 5 includes a resonant spring mechanism 51 and a resonant mass mechanism 52, the resonant spring mechanism 51 enclosing the resonant mass mechanism 52. As shown in fig. 3, a plurality of resonant mass mechanisms 52 are encased inside the resonant spring mechanism 51. The resonant spring mechanism 51 is made of viscoelastic material with complex stiffness damping characteristic, and the damping loss factor of the viscoelastic material with the stiffness damping characteristic ranges from 0 to 1, such as model SA-3 damping plate (manufactured by research institute of ship materials in Luoyang: (<<Viscoelastic damping material>>National defense industry press, 2012, 165 p), or model PD-1 poured damping material (r) (model PD-1) developed by the research institute of ship materials in luoyang<<Viscoelastic damping material>>National defense industry press, 2012/month, 139), the resonant mass mechanism 52 employs a national standard GB/T2451-2017 model 303 stainless steel. Equivalent stiffness k of frequency-modulated harmonic vibration force damping unit 5 composed of resonance spring mechanism 51 and resonance mass mechanism 52eEquivalent mass meThe ratio satisfies the range of the resonant frequency f from 2 Hz to 2000Hz, and the resonant frequency f is (k)e/me)0.5/(2π)。
The present embodiment further includes a mounting module 6, the mounting module 6 includes a bottom plate 61 and a connecting member 62, the vibration converter is mounted on the bottom plate 61, and the bottom plate 61 is connected to the fixing frame 12 through the connecting member 62. The connector 62 may be an anchor bolt, or a resilient clip, or a high strength glue, or a welded body. The bottom plate 61 is a special mounting plate for mounting the transition plate of the frequency modulation resonance power damping unit 5 or the outer constraint plate of the frequency modulation resonance power damping unit 5.
Example two
As shown in fig. 4, the embodiment provides a pantograph carbon slide plate device of an electrified train, which has the same basic structure as the embodiment one, and the difference is that: the vibration converter is a long-strip frequency modulation resonance power damping unit 5, and is arranged below the fixing frame 12 through the mounting module 6, and the specific structure of the frequency modulation resonance power damping unit 5 is also the same as that of the first embodiment.
EXAMPLE III
As shown in fig. 5, the embodiment provides a pantograph carbon slide plate device of an electrified train, which has the same basic structure as the embodiment one, and the difference is that: the vibration converter is formed by discretely arranging a plurality of frequency-modulated harmonic vibration force damping units along the length direction of the carbon sliding plate module 1 according to abnormal wear shapes for correcting the carbon sliding plate, wherein the abnormal wear shapes 7 of the carbon sliding plate are abnormal wear shapes 7 (shown in fig. 6) formed by abrasion of the upper surface of the carbon sliding plate by a mesh wire along the length direction and different wear amounts, and correspond to a carbon sliding plate modal shape 71, the carbon sliding plate modal shape 71 (shown in fig. 7, 1 st-5 th are five possible modal shapes) is a modal shape in the vertical direction, the transverse direction and the torsion under the constraint condition that the carbon sliding plate is in operation and loaded, and the carbon sliding plate modal shape 71 corresponds to the corresponding resonance frequency of the carbon sliding plate module 1.
Example four
As shown in fig. 8, the embodiment provides a pantograph carbon slide plate device of an electrified train, which has the same basic structure as the embodiment one, and the difference is that: the frequency modulation resonance vibration force damping unit 5 of the vibration converter is arranged below the fixing plate through the mounting module 6, and the frequency modulation resonance vibration force damping unit 5 is a spherical resonance spring mechanism 51 which wraps a spherical resonance mass mechanism 52. The bottom plate 61 of the installation module 6 is a spherical shell sleeved outside the resonant spring mechanism 51 and is connected with the bottom surface of the fixed frame 12 through bolts.
EXAMPLE five
As shown in fig. 9, the embodiment provides a carbon pantograph slider device for an electrified train, which comprises a carbon slider 11, a fixing frame 12, a slider mounting seat, a balance support frame, a vibration converter and a cross bracket, wherein the cross bracket is connected with a pantograph head system, the carbon slider is mounted in the fixing frame 12 to form a carbon slider module 1, two ends of the carbon slider module 1 are mounted on the slider mounting seat, and the slider mounting seat is mounted on the cross bracket through the balance support frame. An inner cavity 13 is arranged in the fixed frame 12, and the vibration converter is arranged in the inner cavity 13 along the length direction of the carbon slide plate module 1. The construction of the vibration transducer is the same as in the first embodiment.
EXAMPLE six
As shown in fig. 10, the present embodiment provides a pantograph carbon slide plate device of an electrified train, which has the same basic structure as the fifth embodiment, and the difference is that: the frequency-modulated resonant power damping units 5 of the vibration converter are granular collision bodies, each of which is formed by a resonant spring mechanism 51 enclosing a resonant mass mechanism 52.
EXAMPLE seven
As shown in fig. 11, the embodiment provides a pantograph carbon slide plate device of an electrified train, which has the same basic structure as the fifth embodiment, and the difference is that: the frequency modulation resonance power damping unit 5 of the vibration converter comprises a resonance spring mechanism 51 and a resonance mass mechanism 52, wherein the resonance spring mechanism 51 and the resonance mass mechanism 52 are arranged below the fixed frame 12 in a stacking mode at intervals.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (8)
1. The utility model provides an electrified train pantograph carbon slide device, includes carbon slide (11), mount (12), slide mount pad (2), balance support frame (3) and horizontal bracket (4), the carbon slide is installed and is formed carbon slide module (1) in mount (12), and install on slide mount pad (2) at the both ends of carbon slide module (1), install on horizontal bracket (4) through balance support frame (3) slide mount pad (2), horizontal bracket (4) connect the pantograph, its characterized in that still includes along the vibration converter of carbon slide module (1) length direction installation.
2. The electrified train pantograph carbon slide plate arrangement according to claim 1, wherein said vibration transducer comprises at least one frequency tuned harmonic force damping unit (5), wherein each frequency tuned harmonic force damping unit (5) comprises a resonant spring mechanism (51) and a resonant mass mechanism (52), said resonant spring mechanism (51) encasing the resonant mass mechanism (52).
3. The electrified train pantograph carbon slide plate arrangement according to claim 1, wherein said vibration transducer comprises at least one frequency tuned harmonic force damping unit (5), wherein each frequency tuned harmonic force damping unit (5) comprises a resonant spring mechanism (51) and a resonant mass mechanism (52), said resonant spring mechanism (51) and resonant mass mechanism (52) being spaced apart and stacked.
4. The electrified train pantograph carbon slide plate arrangement according to claim 2 or 3, wherein said resonant spring mechanism (51) is a viscoelastic material having complex stiffness damping characteristics.
5. The electrified train pantograph carbon slide plate arrangement according to claim 2 or 3, wherein each frequency modulated resonant power damping unit (5) is mounted below the fixed frame (12); or an inner cavity (13) is arranged in the fixed frame (12), and the frequency modulation harmonic vibration force damping unit (5) is arranged in the inner cavity (13).
6. The electrified train pantograph carbon slide plate arrangement according to claim 2, wherein said frequency modulated harmonic vibration force damping unit (5) is a granular collider, each granular collider being formed by a resonant spring means (51) enveloping a resonant mass means (52).
7. The electrified train pantograph carbon slide arrangement of claim 5, wherein said plurality of frequency modulated resonant power damping units (5) are arranged discretely along the length of the carbon slide module (1).
8. The electrified train pantograph carbon slide plate arrangement of claim 1, further comprising a mounting module (6), wherein said mounting module (6) comprises a base plate (61) and a connector (62), said vibration transducer is mounted on said base plate (61), and said base plate (61) is connected to said mounting bracket (12) by said connector (62).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921332641.1U CN210970700U (en) | 2019-08-16 | 2019-08-16 | Pantograph carbon slide plate device of electrified train |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921332641.1U CN210970700U (en) | 2019-08-16 | 2019-08-16 | Pantograph carbon slide plate device of electrified train |
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| CN210970700U true CN210970700U (en) | 2020-07-10 |
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| CN201921332641.1U Active CN210970700U (en) | 2019-08-16 | 2019-08-16 | Pantograph carbon slide plate device of electrified train |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110450639A (en) * | 2019-08-16 | 2019-11-15 | 上海工程技术大学 | A kind of electric train pantograph carbon slide device |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110450639A (en) * | 2019-08-16 | 2019-11-15 | 上海工程技术大学 | A kind of electric train pantograph carbon slide device |
| CN110450639B (en) * | 2019-08-16 | 2024-06-28 | 上海工程技术大学 | Carbon slide plate device of pantograph of electrified train |
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