CN105128681A - High-speed pantograph head with two degrees of freedom - Google Patents

High-speed pantograph head with two degrees of freedom Download PDF

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Publication number
CN105128681A
CN105128681A CN201510675499.0A CN201510675499A CN105128681A CN 105128681 A CN105128681 A CN 105128681A CN 201510675499 A CN201510675499 A CN 201510675499A CN 105128681 A CN105128681 A CN 105128681A
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China
Prior art keywords
pantograph
flexible board
board support
slide plate
contact
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CN201510675499.0A
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CN105128681B (en
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孟菖蒲
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China University of Mining and Technology CUMT
China University of Mining and Technology Beijing CUMTB
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China University of Mining and Technology Beijing CUMTB
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Abstract

The invention discloses a high-speed pantograph head with two degrees of freedom. The high-speed pantograph head comprises a supporting seat, flexible plate support frames, two contact strip supporting columns, connecting springs and carbon contact strips, wherein the flexible plate support frames are fixedly connected with the supporting seat through rivets, and the two contact strip supporting columns are connected with the flexible plate support frames through bolts; the carbon contact strips are fixedly arranged at the tops of the contact strip supporting columns through screws; and two ends of the connecting springs are connected with the front and rear contact strip supporting columns through hinges. The high-speed pantograph head is arranged at the top of a pantograph, the carbon contact strips can be kept in close contact with guide wires in contact nets all the time under the supporting actions of the flexible plate support frames and the contact strip supporting columns, and effective supporting and vibration damping functions are provided in the two-degree-of-freedom direction, so that the structural stability, following performance and contact net adaptability of the pantograph are improved. The high-speed pantograph head with two degrees of freedom is simple in structure, light in weight, easy to manufacture, high in shock resistance, not only beneficial to high-speed current collection of the pantograph, but also capable of increasing the collected current of the pantograph of a train on a conventional railway or an urban light rail.

Description

Two-freedom head of high-speed pantograph
Technical field
The present invention relates to the pantograph collector head of a kind of electric rail car or locomotive operation, particularly relate to a kind of two-freedom head of high-speed pantograph.
Background technology
Pantograph also claims collector bow, is that electric locomotive is subject to the electrical equipment of power taking energy from contact system, is arranged on roof.Pantograph, as one of the critical component of electric locomotive, plays key role to the high-speed secure smooth operation of vehicle.On the vehicles such as the electric locomotive in electrified railway and urban track traffic, motor train unit, subway train or other driven operating vehicle, all need to use pantograph to get stream on contact system.Electrified railway adopts electric traction, train is under state of kinematic motion, pantograph is utilized to obtain electric energy from contact system, for ensureing train smooth, safe operation, the definitely reliable and uninterrupted of power supply must be ensured, namely pantograph is good by stream mode, otherwise by the performance of the operation and electrical drive system that affect train.Under high-speed cruising state, higher to the requirement of pantograph.Especially in the operation of subway row and car motor train unit, pantograph be relied on from contact system to obtain electric power, drive locomotive to advance, once both disengagings, locomotive will power-off get out of hand, even likely causes derail.
For ensureing that bow net has good current-carrying characteristic, the structure of pantograph collector head is very crucial.The bow structure of existing pantograph is: have two spring brackets at the two ends of slide plate, these spring brackets are made up of coil spring, wire rack or spring case usually, also by employing torsion spring form support.These spring bracket complex structures, weight is comparatively large, brings adverse effect to the followability of pantograph.What also have devises laminated spring as arch head bracket, but also aobvious volume is slightly large.To be unfavorable under high-speed condition dynamic is flowed.
The pantograph of electric locomotive and the current carrying quality of contact wire depend primarily on the interaction between pantograph and contact system.For ensureing the smooth circulation of traction current, between pantograph and contact wire, certain contact must be had.If bow net contact pressure is too little, contact loss rate can be increased; If too large, can make to produce larger mechanical wear between slide plate and contact wire.The actual contact of bow net is made up of four parts: pantograph bow-lifting device puts on slide plate, and the vertical power made it upwards is Static Contact pressure; Because contact suspension itself exists elastic difference, contact wire can produce rising in various degree under pantograph lifting effect, thus pantograph is in operation generation up-down vibration, make pantograph produce the dynamic touch pressure of a up and down alternation relevant to itself normalized wave function; Be in operation of producing by empty airflow function increases with speed and the aerodynamic force that increases sharply pantograph; The dumping force that each joint of pantograph produces in lifting bow process.In addition, electric locomotive as crosswind, also can produce larger side force to pantograph in operational process.
Tradition pantograph is by the restriction of inherent structure form, and bow, based on the motion of vertical direction, only arranges predetermincd tension and the shock absorber for vibration damping in vertical direction, and do not have shock attenuation unit in other directions.In addition, existing pantograph does not arrange bow disengagement gear, and when bow net occurring and scraping mutually, the scraper plate on bow cannot be thrown off, and this easily causes bow net to scrape accident mutually.Existing pantograph not only structural stability is poor, and safety method when seldom consideration lateral force is scraped mutually with bow net, there is certain potential safety hazard.
For the problem of the aspects such as existing pantograph freedom of motion and cushioning performance deficiency, existing patent documentation it is also proposed some solutions, the Chinese patent being 201010610605.4 as application number discloses a kind of head of high-speed pantograph, comprise slide plate, little bow angle, longbow angle and frame spring, under the cooperation of pantograph trammel beam, frame spring can remain that pantograph carbon slide is parallel with orbit plane, just can make carbon slipper all the time with contact wire close contact, the bow of this pantograph adopts single slide plate cantilever design, there is single degree of freedom cushioning performance, the bow of alternative existing tandem pantograph, but the pantograph being not suitable for parallel-connection structure uses.
A kind of flexible board support that adopts that the present invention relates to is as the base for supporting of carbon slipper pillar, what make carbon slipper has the independent rotation of one, space movement one totally two freedom of motions, and on above-mentioned two degree of freedom directions, there is vibration-damping function, the technological deficiency that existing pantograph collector head exists can be overcome.
Summary of the invention
The object of the invention is the deficiency for existing pantograph collector head technology, provide a kind of all can the two-freedom head of high-speed pantograph of vibration damping in train working direction and side direction.Technical matters to be solved by this invention realizes by the following technical solutions.
A kind of two-freedom head of high-speed pantograph, comprises supporting seat, flexible board support, slide plate pillar, linking springs and carbon slipper.Wherein, described supporting seat is provided with square auxiliary hole; Described flexible board support, the quantity of slide plate pillar are four, and are arranged in the top of supporting seat all symmetrically.Described flexible board support is connected mutually by rivet and supporting seat, described slide plate pillar is connected by bolt with between flexible board support, and the bottom end surface of described slide plate pillar contacts with holding surface between flexible board support, to avoid the bottom relative flexibility board mount of slide plate pillar to produce slippage, and reduce the quantity of the bolt connected; Described linking springs and the quantity of carbon slipper are two, and described carbon slipper is fixedly mounted on the top of slide plate pillar by screw; The two ends of described linking springs are all connected by hinge with former and later two slide plate pillars, for connecting former and later two slide plate pillars, when a carbon slipper meet obstructions force fixing slide plate pillar distortion thereunder to be dodged time, linking springs can make another slide plate pillar be connected produce interlock distortion; Described linking springs is positioned at the middle and upper part of slide plate pillar, and and distance between carbon slipper be not less than 100mm.
Described flexible board support comprises adapter plate, arc elastic plate and U-shaped mounting groove.Wherein, described U-shaped mounting groove is positioned at the middle part of flexible board support, and described adapter plate, arc elastic plate are arranged symmetrically in the both sides of U-shaped mounting groove, and adapter plate is positioned at the below in the outside of arc elastic plate; Described adapter plate is provided with fixing rivet hole, the side of described U-shaped mounting groove is provided with two coaxial bolts hole.
Described flexible board support adopts 50CrVA or 60Si2MnA material, with the performance of the elastic deformation and vibration damping that improve flexible board support; Be provided with on the metal-based layer surface of described flexible board support the preservative coat that turns blue, and be provided with plastic coat at the outside face of the preservative coat that turns blue, for strengthening the antiseptic power of flexible board support.In train travelling process, when the carbon slipper on pantograph collector head is subject to lateral impact or resistance, flexible board support is out of shape the vibration of bearing side direction reverse load and also reducing to produce by making its arc elastic plate produce.In addition, flexible board support also has certain damping of vibrations in the vertical direction.
Described slide plate pillar adopts resilient nonmetallic insulating material to make, and when carbon slipper is subject to resistance at train travelling process or impacts, slide plate pillar carries out buffer shock-absorbing or keeps away barrier by producing elastic deformation, to reduce the generation of scraping net safety misadventure.
The present invention is placed in the top of the pantograph of electric rail car or locomotive, has both been applicable to the pantograph of parallel connection or hybrid connected structure, and the pantograph being also suitable for traditional serial mechanism uses.After pantograph completes rising bow task, under the supporting role of flexible board support and slide plate pillar, carbon slipper can keep close contact with the wire in contact system all the time.
The invention has the beneficial effects as follows, compared with prior art, the present invention adopts flexible board support as the base for supporting of carbon slipper pillar, carbon slipper is made to have the independent rotation of one, space movement one totally two freedom of motions, and effective vibration-damping function is provided on above-mentioned two degree of freedom directions, not only there is vertical support function, and all there is vibration-damping function in train working direction and side direction, improve stability and the followability of pantograph.Adopt linking springs and there is the slide plate pillar that elastomeric non-metallic material makes, replace the spring-loaded of traditional bow, not only improve the bow structure of pantograph, alleviate the weight of bow, also can avoid the de-generation of bending and scraping the safety misadventures such as net, improve the structural stability of pantograph and the comformability to contact system.In addition, the present invention also have structure simple, be easy to manufacture shaping, working stability reliable, safeguard the advantages such as convenient.Pantograph, after having installed this bow, not only can adapt to the needs of current collection at high speed, and can play better effect on the lower conventional railway of speed or urban light rail railway.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the structural representation of flexible board support of the present invention.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment and diagram, setting forth the present invention further.
As shown in Figure 1, a kind of two-freedom head of high-speed pantograph, comprises supporting seat 1, flexible board support 2, slide plate pillar 3, linking springs 4 and carbon slipper 5.Wherein, described supporting seat 1 is provided with square auxiliary hole 11; Described flexible board support 2, the quantity of slide plate pillar 3 are four, and are arranged in the top of supporting seat 1 all symmetrically.Described flexible board support 2 is connected mutually by rivet 6 and supporting seat 1, described slide plate pillar 3 is connected by bolt 7 with between flexible board support 2, and the bottom end surface of described slide plate pillar 3 contacts with holding surface between flexible board support 2, to avoid the bottom relative flexibility board mount 2 of slide plate pillar 3 to produce slippage, and reduce the quantity of the bolt 7 connected; Described linking springs 4 and the quantity of carbon slipper 5 are two, and described carbon slipper 5 is fixedly mounted on the top of slide plate pillar 3 by screw; The two ends of described linking springs 4 are all connected by hinge 41 with former and later two slide plate pillars 3, for connecting former and later two slide plate pillars 3, when a carbon slipper 5 meet obstructions force fixing slide plate pillar 3 distortion thereunder to be dodged time, linking springs 4 can make another slide plate pillar 3 be connected produce interlock distortion; Described linking springs 4 is positioned at the middle and upper part of slide plate pillar 3, and and distance between carbon slipper 5 be not less than 100mm.
As depicted in figs. 1 and 2, described flexible board support 2 comprises adapter plate 21, arc elastic plate 22 and U-shaped mounting groove 23.Wherein, described U-shaped mounting groove 23 is positioned at the middle part of flexible board support 2, and described adapter plate 21, arc elastic plate 22 are arranged symmetrically in the both sides of U-shaped mounting groove 23, and adapter plate 21 is positioned at the below in the outside of arc elastic plate 22; Described adapter plate 21 is provided with fixing rivet hole 24, the side of described U-shaped mounting groove 23 is provided with two coaxial bolts hole 25.
As depicted in figs. 1 and 2, described flexible board support 2 adopts 50CrVA or 60Si2MnA material, with the performance of the elastic deformation and vibration damping that improve flexible board support 2; Be provided with on the metal-based layer surface of described flexible board support 2 preservative coat that turns blue, and be provided with plastic coat at the outside face of the preservative coat that turns blue, for strengthening the antiseptic power of flexible board support 2.In train travelling process, when the carbon slipper 5 on pantograph collector head is subject to lateral impact or resistance, flexible board support 2 is out of shape the vibration of bearing side direction reverse load and also reducing to produce by making its arc elastic plate 22 produce.In addition, flexible board support 2 also has certain damping of vibrations in the vertical direction.
As shown in Figure 1, described slide plate pillar 3 adopts resilient nonmetallic insulating material to make, when carbon slipper 5 is subject to resistance at train travelling process or impacts, slide plate pillar 3 carries out buffer shock-absorbing or keeps away barrier by producing elastic deformation, to reduce the generation of scraping net safety misadventure.
The present invention is placed in the top of the pantograph of electric rail car or locomotive, has both been applicable to the pantograph of parallel connection or hybrid connected structure, and the pantograph being also suitable for traditional serial mechanism uses.After pantograph completes rising bow task, under the supporting role of flexible board support 2 and slide plate pillar 3, carbon slipper 5 can keep close contact with the wire in contact system all the time.
More than show and describe groundwork of the present invention, principal character and advantage.The technical personnel of the industry should be understood; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the scope of protection of present invention.Application claims protection domain is defined by appending claims and equivalent thereof.

Claims (4)

1. a two-freedom head of high-speed pantograph, comprises supporting seat, flexible board support, slide plate pillar, linking springs and carbon slipper, it is characterized in that: on described supporting seat, be provided with square auxiliary hole; Described flexible board support, the quantity of slide plate pillar are four, and be arranged in the top of supporting seat all symmetrically, described flexible board support is connected mutually by rivet and supporting seat, described slide plate pillar is connected by bolt with between flexible board support, and the bottom end surface of described slide plate pillar contacts with holding surface between flexible board support; Described linking springs and the quantity of carbon slipper are two, and described carbon slipper is fixedly mounted on the top of slide plate pillar by screw, and the two ends of described linking springs are all connected by hinge with former and later two slide plate pillars; Described linking springs is positioned at the middle and upper part of slide plate pillar, and and distance between carbon slipper be not less than 100mm.
2. two-freedom head of high-speed pantograph according to claim 1, it is characterized in that: described flexible board support comprises adapter plate, arc elastic plate and U-shaped mounting groove, described U-shaped mounting groove is positioned at the middle part of flexible board support, described adapter plate, arc elastic plate are arranged symmetrically in the both sides of U-shaped mounting groove, and described adapter plate is positioned at the below in the outside of arc elastic plate; Described adapter plate is provided with fixing rivet hole, the side of described U-shaped mounting groove is provided with two coaxial bolts hole.
3. two-freedom head of high-speed pantograph according to claim 1, it is characterized in that: described flexible board support adopts 50CrVA or 60Si2MnA material, and be provided with on the metal-based layer surface of described flexible board support the preservative coat that turns blue, be provided with plastic coat at the outside face of the preservative coat that turns blue.
4. two-freedom head of high-speed pantograph according to claim 1, is characterized in that: described slide plate pillar adopts resilient nonmetallic insulating material to make.
CN201510675499.0A 2015-10-19 2015-10-19 Two-freedom head of high-speed pantograph Active CN105128681B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106494235A (en) * 2016-12-27 2017-03-15 北京中车赛德铁道电气科技有限公司 A kind of double-standard high speed pantograph bow
CN107176039A (en) * 2017-07-14 2017-09-19 尚圣杰 A kind of electric automobile mobile charging top brush device
CN107215212A (en) * 2017-07-14 2017-09-29 尚圣杰 A kind of shape lifting top brush system of electric automobile mobile charging

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1219491A1 (en) * 2000-12-29 2002-07-03 Faiveley Transport Current collector head of a pantograph
RU2200677C2 (en) * 2000-10-02 2003-03-20 Открытое акционерное общество "Всероссийский научно-исследовательский и проектно-конструкторский институт электровозостроения" Upper contact unit of current collector for electric vehicle
CN202399928U (en) * 2011-11-08 2012-08-29 北京赛德高科铁道电气科技有限责任公司 Pantograph bow of pantograph
CN203995727U (en) * 2014-08-19 2014-12-10 安徽理工大学 Three-freedom-degree hybrid vibration damping pantograph
CN204055407U (en) * 2014-08-19 2014-12-31 安徽理工大学 Based on the Three-freedom-degree hybrid pantograph of two-in-parallel mechanism
CN205130954U (en) * 2015-10-19 2016-04-06 中国矿业大学(北京) High -speed pantograph bow of two degrees of freedom

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2200677C2 (en) * 2000-10-02 2003-03-20 Открытое акционерное общество "Всероссийский научно-исследовательский и проектно-конструкторский институт электровозостроения" Upper contact unit of current collector for electric vehicle
EP1219491A1 (en) * 2000-12-29 2002-07-03 Faiveley Transport Current collector head of a pantograph
CN202399928U (en) * 2011-11-08 2012-08-29 北京赛德高科铁道电气科技有限责任公司 Pantograph bow of pantograph
CN203995727U (en) * 2014-08-19 2014-12-10 安徽理工大学 Three-freedom-degree hybrid vibration damping pantograph
CN204055407U (en) * 2014-08-19 2014-12-31 安徽理工大学 Based on the Three-freedom-degree hybrid pantograph of two-in-parallel mechanism
CN205130954U (en) * 2015-10-19 2016-04-06 中国矿业大学(北京) High -speed pantograph bow of two degrees of freedom

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106494235A (en) * 2016-12-27 2017-03-15 北京中车赛德铁道电气科技有限公司 A kind of double-standard high speed pantograph bow
CN106494235B (en) * 2016-12-27 2019-02-22 北京中车赛德铁道电气科技有限公司 A kind of double-standard high speed pantograph bow
CN107176039A (en) * 2017-07-14 2017-09-19 尚圣杰 A kind of electric automobile mobile charging top brush device
CN107215212A (en) * 2017-07-14 2017-09-29 尚圣杰 A kind of shape lifting top brush system of electric automobile mobile charging

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