WO2011091554A1 - 一种导电轨接头 - Google Patents

一种导电轨接头 Download PDF

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Publication number
WO2011091554A1
WO2011091554A1 PCT/CN2010/000137 CN2010000137W WO2011091554A1 WO 2011091554 A1 WO2011091554 A1 WO 2011091554A1 CN 2010000137 W CN2010000137 W CN 2010000137W WO 2011091554 A1 WO2011091554 A1 WO 2011091554A1
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WO
WIPO (PCT)
Prior art keywords
rail
conductor
conductive
wire
support plate
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Application number
PCT/CN2010/000137
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English (en)
French (fr)
Inventor
周立成
杨亚平
Original Assignee
新誉集团有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 新誉集团有限公司 filed Critical 新誉集团有限公司
Priority to US13/384,552 priority Critical patent/US8556189B2/en
Priority to CN2010800010925A priority patent/CN102317104B/zh
Priority to PCT/CN2010/000137 priority patent/WO2011091554A1/zh
Priority to BR112012001635-0A priority patent/BR112012001635B1/pt
Publication of WO2011091554A1 publication Critical patent/WO2011091554A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M1/00—Power supply lines for contact with collector on vehicle
    • B60M1/30—Power rails
    • B60M1/305—Joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M1/00—Power supply lines for contact with collector on vehicle
    • B60M1/30—Power rails
    • B60M1/302—Power rails composite

Definitions

  • the invention relates to a conductive rail joint. Background technique
  • the conductive rail power supply technology In the power supply system of urban underground track electric vehicles, in order to reduce the cost of line construction, the conductive rail power supply technology is often used.
  • the so-called “conductor rail traction power supply” is the two rails that travel on the train, plus the charged rail.
  • the live track is usually placed between the two rails or on the outside of one of the rails.
  • the collector's electric collector of the electric train contacts and slides on the charged conductor rail to transfer the power to the train. '
  • the conductive rails are all made of steel-aluminum composite rails.
  • the length of a single conductor rail is usually 12 meters to 20 meters. It is necessary to electrically connect and mechanically connect multiple conductive rails to realize the function of electric power for electric trains. Like all tracks, the conductive rails will also expand and contract with temperature changes. The ends of the two adjacent conductive rails must have a certain gap. In order to realize the electrical connection between the two adjacent conductive rails, 3 ⁇ 4 rails, it is necessary to install telescopic conductive joints at the junction of the two conductor rails, and it is required to have small contact resistance, good reliability and convenient installation.
  • the conductive rails were electrically connected by connecting the fishplates at both ends of the conductor rails.
  • expansion joints have been added at the joints of the conductor rails.
  • the prior patent entitled “A Rail Transit Conductor Rail Compensation Device” of the patent application No. C 200720036403. 7 discloses an expansion joint composed of three relatively slidable silver-plated copper primary and secondary sheets, the expansion joint of which The main piece and the sub piece are fixed on the conductive rail, the main piece is inserted between the two pieces, and is fixed by a U-bolt clamp with a backing plate, the U-shaped bolt is provided with a bomb charge, and the main and auxiliary pieces are in planar frictional contact.
  • the second sheet is not good contact, the contact resistance increases to affect Tun carrier. 3 There will be a certain voltage drop at the contact point or surface between the ⁇ sub-sheets. If the contact resistance is large or the contact is poor, overheating and arc ablation may occur. ,
  • Patent No. ZL02820582 discloses a telescopic connector using a plurality of layers of metal electrical conductors.
  • the gold strip is softly connected, the electrical conductor gold flexor is fixed on the connecting element, and the connecting element is made of non-golden material, movable or Slidably mounted in or on two mutually facing ends of the contact rail (conducting rail), the K function is to secure the telescopic rail to extend and contract only in the longitudinal direction.
  • the conductive rail is longitudinally stretched, the frictional resistance of the chutes at both ends of the connecting member is difficult to maintain balance.
  • the multi-layer metal strip is somewhat rigid, and therefore; when the contact rail is stretched, the two sides are bent [the compression or extension stroke of the U1 portion is difficult to ensure uniformity and uniformity, and there may be a significant asymmetry of one side of the telescopic width, and possibly even The bent portion on one side of the electric conductor is repeatedly over-compressed or over-extended, causing fatigue damage or even breakage of the part of the gold flexor. In extreme cases, if only the bent portion of one side of the conductor expands and contracts, the bent portion is excessively elastically deformed, and the guide body may be brought into contact with the ground or the bottom surface of the conductive rail, thereby causing a safety hazard or a safety accident.
  • the object of the present invention is to provide a conductive rail joint, which not only ensures accurate guiding of the left and right conductive rails during thermal expansion and contraction, but also ensures good current continuity, even if a breakpoint occurs in the loop. The transmission of the power.
  • a technical solution for achieving the object of the present invention is a conductive rail joint comprising a left conductor rail, a middle rail and a right conductor rail, the right end surface of the left conductor rail, the end faces of the middle rail, and the left end surface of the right conductor rail are mutually parallel slopes And further comprising a support plate, an electric conductor and a wire;
  • the support plate is divided into a left support plate installed on the bottom of the left conductive rail and a right support plate mounted on the bottom surface of the right conductive rail, and the two are not axially symmetrically mounted;
  • the conductor is divided into a left electric conductor and a right electric conductor, the left end of the left electric conductor is fixed to the left support plate, the right end is suspended, the right end of the right electric conductor is fixed to the right support plate, and the left end is suspended;
  • the wire is divided into a left wire and a right wire.
  • the two ends of the left wire are respectively connected to the fixed end of the left electric
  • the support plate is connected to the left and right conductive rails by welding or riveting.
  • the electrical conductor is fixed to the support plate by bolts, and the wire is fixed to the electrical conductor by bolts. .
  • the support plate is a metal material having good electrical conductivity, smearability, and sufficient mechanical strength.
  • the electrical conductor is a copper row with good electrical conductivity.
  • the wire is a braided soft copper wire.
  • the invention further comprises a fishplate; a left horizontal adjustment hole and a right horizontal adjustment hole are respectively arranged in the middle of the left guide rail and the right conductive rail, and a fixing hole is arranged in the middle of the middle rail, and the fishplate is bolted, left
  • the horizontal adjustment hole, the right horizontal adjustment hole and the fixing hole are installed on both sides of the left conductive rail, the middle rail and the middle of the right conductive rail, and the tail plate is slidably connected with the left guide rail and the right conductive rail, and is fixedly connected with the intermediate rail.
  • the fishplate is made of aluminum alloy, and the bolts for mounting the fishplate are made of stainless steel.
  • the fishplate and bolts participate in the 3 ⁇ 4 connection of the conductor rails.
  • the invention has the following beneficial effects: (1) The two ends of the left wire are respectively connected with the fixed end of the left electric conductor and the hanging W end of the right electric conductor, and the two ends of the right wire are respectively connected to the cantilever end of the left electric conductor and the right conductance.
  • the fixed end of the body, the structure forms a loop between the wire and the electric conductor.
  • the conductor rail is stretched, the longitudinal displacement of the left and right electric conductors is not restricted; the left and right wires are respectively fixed on the left and right electric conductors by bolts and nuts. No obvious relative movement occurs at all electrical connection points.
  • environmental vibrations such as mechanical vibration, electromagnetic force, thermal stress cycle, atmospheric corrosion, dust and pollution will not affect the electrical connection points.
  • the contact resistance has a significant effect.
  • the wire of the present invention can be kept loose after being connected, so as not to affect the 1:1:1 expansion and contraction of the thermal expansion and contraction of the conductive track, and because both ends of the wire are fixed on the electrical conductor, and the two electrical conductors At the same level, the wire will only bend in the horizontal plane, and it is impossible to make contact with the ground due to the flexion and deformation.
  • the electric conductor of the present invention is fixed to the support plate by bolts, and the wires are fixed by bolts and electric conductors. This structure makes installation, disassembly, and replacement very convenient.
  • the support plate of the present invention is a gold-flex material having good electrical conductivity, weldability and sufficient mechanical strength, and is integrally connected with the conductive rail by welding or riveting, has a stable structure and high reliability of electrical conduction.
  • the electric conductor of the present invention is a copper row having good electrical conductivity, and this structure further increases the reliability of electrical conduction.
  • the wire of the invention is a braided soft copper wire, and the braided soft copper wire is very soft and not easily broken, so that the lead I I loop is more stable and reliable.
  • the fishplate of the present invention is mounted on the left side of the left conductor rail, the middle rail and the right conductor rail by bolts, waist-shaped round holes and fixing holes, and the fishplate is slidably connected to the left conductor rail and the right conductor rail.
  • this structure can make the left and right conductor rails expand and contract, the direction of expansion and contraction will be oriented toward the middle rail, which further increases the stability and reliability of the conductive loop.
  • the fishplate of the present invention and the bolts for mounting the fishplate are all metal materials having sufficient mechanical strength, so that when the left and right guide rails are thermally expanded and contracted for longitudinal expansion and contraction, the fishplate and the installation are installed.
  • the bolts on the fishplate ensure accurate guidance when the conductor rail slides.
  • III 1 is a schematic structural view of the invention.
  • FIG. 2 is a cross-sectional view taken along line AA of Fig. 1;
  • FIG. 3 is a schematic view of the present invention when the conductive rail does not undergo a contraction at normal temperature.
  • Figure 4 is a schematic view of the conductor rail of the present invention as it expands due to an increase in temperature.
  • Fig. 5 is a schematic view showing the state in which the conductor rail of the present invention contracts due to a drop in temperature.
  • this embodiment includes a left conductor rail 1, a middle rail 2, a right conductor rail 3, a support plate 4, an electric cradle 5, a wire 6 and a fishplate 7.
  • the cross sections of the left and right conductor rails and the middle rail are both "I-shaped", and there is a contact surface at the upper portion of the conductor rail, as shown in Fig. 2, the contact surface 21 of the intermediate rail.
  • the collector shoe of the electric vehicle of the track slides on the contact surface to realize the right end face of the L left conductor rail 1, the both end faces of the intermediate rail 2, and the left end of the right conductor rail 3 as a phase: parallel slope.
  • the support plate 4 is a metal material having good electrical conductivity, weldability and sufficient mechanical strength.
  • the support plate 4 is divided into a left support plate 41 which is mounted on the bottom surface of the left conductive rail 1 by welding or riveting and is mounted on the right conductive.
  • the right support plate 42 on the bottom surface of the rail 3 is asymmetrically mounted. As shown in Figures 3 to 5, there is a certain height difference between the two.
  • the electric conductor 5 is a copper row with good electrical conductivity, and is divided into a left electric conductor 51 and a right electric conductor 52.
  • the left end of the left electric conduction 5 1 is fixed to the left supporting plate 41, the right end is suspended, and the right end and right of the right electric conductor 52 are right.
  • the support plate 42 is fixed and the left end is suspended;
  • the wire 6 is a braided soft copper wire, which is divided into a left wire 61 and a right wire 62.
  • the two ends of the left wire 61 are respectively connected to the fixed end of the left electric conductor 51 and the right electric conductor 52.
  • the two ends of the right wire 62 are respectively connected to the suspension end of the left electric conductor 51 and the fixed end of the right electric conduction 52, and the wire 6 can be kept loose after being connected.
  • a left horizontal adjustment hole 1 1 and a right horizontal adjustment hole 31 are respectively provided, and a middle portion of the middle rail 2 is provided with a fixing hole 8 through which the fish plate 7 is passed.
  • the left horizontal adjustment hole 11, the right horizontal adjustment hole 31 and the fixed hole 8 are installed on both sides of the middle of the left conductive rail 1, the middle rail 2 and the right conductive rail 3, and the screw 71 and the nut fastened on the intermediate rail 2 are tight
  • the solid torque is large, and the tightening torque on the bolts 7 1 and the nuts connected to the left and right I rails 1 and 3 is small, so that the bolts on both sides can be respectively disposed in the left horizontal adjustment hole 1 1 and the right horizontal adjustment hole 31 on both sides.
  • the longitudinal sliding is performed such that the fishplate 7 is slidably coupled to the left conductive rail 1 and the right conductive rail 3 to be fixedly coupled to the intermediate rail 2.
  • the embodiment is mainly used in the urban rail power supply system.
  • the contact of the conductive rails can be continuous and the surface can be adjusted.
  • And can be ffi, so that the collector shoe can smoothly transition from one end to the other through the gap of the conductive rail joint, except for the collector shoe An arc is generated during operation when the expansion point is excessive.
  • the expandable conductive rail joint has a simple structure, and can be disassembled and assembled. The bolts can secure the electrical conductor 5 and the conductor 6.
  • the wire 6 is made of a soft copper wire which is very soft and does not affect the self-tanning expansion and contraction of the conductive track during thermal expansion and contraction: the wire 6 is fixed at both ends of the electrical conductor 5": and the two electrical conductors 5 are at the same level. Upper, therefore, the wire 6 is only bent in a horizontal direction, and it is impossible to make contact with the ground due to the deformation of the extension and flexion.
  • the left conductive rail 1 and the right conductive rail 3 are extended, and the left electric conductor 51 and the right electric conductor 52 are relatively moved, and the wire 6 is a braided soft copper wire, and the braided soft copper wire is very It is soft and therefore does not affect the extension of the temperature of the conductor rail.
  • the left conductive rail 1 and the right conductive rail 3 are contracted, and the left electrical conductor 5 1 and the right electrical conductor 52 are also relatively moved.
  • the wire 6 is a braided soft copper wire, and the soft copper is woven. The wire is very soft and therefore does not affect the shrinkage of the conductor rail when it is lowered. It is understood that the specific embodiments described above are merely illustrative of the invention and are not intended to limit the invention. OBJECTS The obvious variations or variations that are apparent from the spirit of the invention are still within the scope of the invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Conductive Materials (AREA)

Description

一种导电轨接头
技术领域
本发明涉及一种导电轨接头。 背景技术
在城市地下轨道电动车辆的供电***中， 为了降低线路建设的成本常采用导电轨舉 引供电技术。 所谓 "导电轨牵引供电"就是在列车行走的两条路轨以外， 再加上带电的 轨道。 这条带电轨道通常设于两轨之间或其中一轨的外侧， 电动列车的集电装覽集电靴 在带电的导电轨上接触并滑行， 把电力传 列车上。 '
目前， 导电轨均使用钢铝复合轨， 单根导电轨的长度通常为 12米到 20米， 必须将 多根导电轨电连接和机械连接在一起， 才能实现书为电动列车提供电能的功能。 像所有轨 道一样， 导电轨也会随温度的变化发生热胀冷缩， 两根相邻导电轨的端部必须留有一定 的间隙， 为了实现相邻两根导电轨的电连接， 在铺设导 ¾轨吋， 必须在这两根导电轨连 接处安装可以伸缩的导电接头，并要求其具有接触电阻小，可靠性好， 安装方便等特性。
以往导电轨是通过连接导电轨两个端部的鱼尾板来实现电连接， 为了提高电连接的 可靠性， 目前都在导电轨的连接处增加了膨胀接头。
专利申请号为 C 200720036403. 7 的在先专利 《一种轨道交通导电轨补偿装置》 公 开了一种由三块可相对滑动的镀银铜质主副片构成的膨胀接头， 这种膨胀接头的主片、 副片固定在导电轨上， 主片***两副片之间， 并用一个带垫板的 U型螺栓夹具固定， U 型螺栓上设有弹费， 主副片之间通过平面摩擦接触来实现导电功能， 这种膨胀接头在使 用过程中存在一些缺陷， 表现为： ①主副片间的接触电阻不易控制， 电动列车运行过程 中产生的振动， 局部温度的变化， ±副片的磨损、 腐蚀， 异物的侵入， 夹紧力大小的变 化等， 均会导致接触电阻发生变化； ②螺栓的扭矩控制困难， 如果螺栓的扭矩太大， 主 副片间压紧力过大， 则膨胀接头就不能伸缩自如， 在导电轨发生仲缩变形吋会产生较大 的阻力， 甚至可能导致导电轨发生变形； 压紧力不够则主副片不能很好地接触， 接触屯 阻增大而影响载流。 ③在 ±副片之间的接触点或面上均会存在一定的电压降， 接触电 阻较大或接触不良时可能产生过热和电弧烧蚀等现象。 ，
专利号为 ZL02820582. 0的在先专利 《用于接触轨的伸缩式连接器》 公开了一种使 用多层金属电导体的伸缩式连接器， 在实施中±要是使用具有优良导电性能的多层金 带软连接， 电导体金屈带囫定在连接元件上， 连接元件 ώ非金厲材料制成的， 可移动或 可滑动地安装在接触轨（导电轨） 的两个互相面对的端部内或上， K作用是保址导电轨 只能沿长度方向伸缩。 但是， 在导电轨发生纵向伸缩时， 连接元件两端滑槽的摩擦阻力 是很难保持均衡。 而且， 多层金属带是具有一定刚性的， 因此; 在接触轨发生伸缩时两 边弯 [Ul部分的压缩或延伸行程难以保证一致和均匀， 可能出现一边伸缩幅度较另一边明 显不对称， 甚至可能出现电导体一边的弯曲部反复被过压缩或过延伸， 导致部份金屈带 疲劳损坏， 甚至发生断裂。 在极端情况下， 如只有导电体一边的弯曲部发生伸缩， 弯曲 部发生过度的弹性变形， 还有可能使导 ¾体与地而或导电轨的底面接触， 从而造成安全 隐患或安全事故。 发明内容
本发明的目的在于提供一种导电轨接头， 该接头不但能保证左右导电轨在热胀冷缩 时导向准确， 而且能保证电流续接良好， 即使环路中出现了- 个断点也能保证屯能的传 输。
实现本发明目的的技术方案是一种导电轨接头，包括左导电轨、中间轨和右导电轨， 左导电轨的右端面、 中间轨的两端面以及右导电轨的左端面为相互平行的斜面， 还包括 支板、 电导体和导线； 所述支板分为安装在左导电轨底而的左支板和安装在右导电轨底 面的右支板， 两者非轴对称安装； 所述 ¾导体分为左电导体和右电导体， 左电导体的左 端与左支板固定、 右端悬置， 右电导体的右端与右支板固定、 左端悬置； 所述导线分为 左导线和右导线， 左导线的两端分别连接左电导体的固定端和右电导体的悬 端， 右导 所述导线连接后能保持松
Figure imgf000004_0001
所述支板通过焊接或者铆接的方式与左导电轨和右导电轨连接。
所述电导体通过螺栓与支板固定， 导线通过螺栓与电导体固定。 .
所述支板为具有良好的导电性、 可焯性和有足够机械强度的金属材料。
所述电导体为具有良好导电性能的铜排。
所述导线为编织软铜线。
本发明还包括鱼尾板； 在左导.电轨和右导电轨的中部分别设有左水平调节孔和右水 平调节孔，' 中间轨的中部设有固定孔， 鱼尾板通过螺栓、 左水平调节孔、 右水平调节孔 和固定孔安装在左导电轨、 中间轨和右导电轨中部的两侧， 且 it尾板与左导 έ轨和右导 电轨滑动连接， 与中间轨固定连接。
所述鱼尾板为铝合金材料， 安装鱼尾板的螺栓为不锈钢材料。
所述鱼尾板和螺栓参与导电轨的 ¾连接。 本发明具有以下的有益效果： （1 )左导线的两端分别连接左电导体的固定端和右电 导体的悬 W端， 右导线的两端分别连接在左电导体的悬臂端和右电导体的固定端， 这种 结构使得导线与电导体形成了一个环路， 在导电轨发生伸缩时， 左右电导体的纵向位移 不会受到约束； 左右导线通过螺栓、 螺母分别固定在左右电导体上， 所有电连接点均不 会发生明显的相对运动， 在膨胀接头的使用寿命期内， 机械振动、 电磁力、热应力循环、 大气环境腐蚀、 尘±污染等环境因素不会对各个电连接点的接触电阻造成明显的影响。
( 2 ) 本发明导线连接后能保持松弛， 这样不会影响导电轨发生热胀冷缩吋的自 1:1:1 伸缩， 而且由于导线两端均固定在电导体上， 而两根电导体处于同一水平面上， 因此导 线只会在水平面内弯曲， 不可能发生因伸屈变形而与大地接触。
( 3 ) 本发明的电导体通过螺栓与支板固定， 导线通过螺栓与电导体固定， 这种结 构使得安装、 拆卸、 '更换都非常方便。
( 4 ) 本发明的支板为具有良好的导电性、 可焊性和有足够机械强度的金屈材料， 通过焊接或铆接的方式与导电轨连为一体， 结构稳固， 导电的可靠性高。
( 5 ) 本发明电导体为具有良好导电性能的铜排， 这种结构进一歩增加了导电的可 靠性。
( 6 ) 本发明导线为编织软铜线， 编织软铜线非常柔软又不容易断裂， 使得导 I I丄环 路更加稳定可靠。
( 7 ) 本发明的鱼尾板通过螺栓、 腰形圆孔和固定孔安装在左导电轨、 中间轨和右 导电轨腰部的两侧， 且鱼尾板与左导电轨和右导电轨滑动连接， 与中间轨固 连接， 这 种结构可以使得左导电轨和右导电轨发生热胀冷缩吋伸缩的方向会朝向中问轨， 进一歩 增加了导电环路的稳定性和可靠性。
( 8 ) 本发明鱼尾板以及安装鱼尾板的螺栓均为具有足够机械强度的金属材料， 这 样当左导电轨和右导 ¾轨发生热胀冷缩做纵向伸缩时， 鱼尾板以及安装鱼尾板的螺栓可 保证导电轨滑动时的导向准确。
( 9 ) 本发明鱼尾板以及安装鱼尾板的螺栓均参与导电轨的电连接， 这能更为有效 地保证连接的可靠性。 附图说明 '
为了使本发明的内容更容易被清楚的理解， 下面根据具体实施例并结合附图， 对本 发明作进一歩详细的说明， 其中
III 1为本'发明的结构示意图。
图 2为图 1的 A-A剖视图。 图 3为本发明在常温下导电轨不发生仲缩时的示意图。
图 4为本发明导电轨因温度升高而伸展时的示意图。
图 5为本发明导电轨因温度下降而收缩时的示意图。
附图中标号为：
左导电轨 1、 左水平调节孔 1 1、 中间轨 2、 接触面 21、 右导电轨 3、 右水平调节孔 31、 支板 4、 左支板 41、 右支板 42、 电导体 5、 左电导体 51、 右电导体 52、 导线 6、 左 导线 61、 右导线 62、 鱼尾板 7、 螺栓 71、 固定孔 8。 具体实施方式
(实施例 1 )
见阁 1至图 5， 本实施例包括左导电轨 1、 中间轨 2、 右导电轨 3、 支板 4、 电 休 5、 导线 6和鱼尾板 7。
左、 右导电轨和中间轨的截面均呈 "工字形"， 在导电轨的上部有接触面， 如图 2 所示的中间轨的接触面 21。轨道电动车辆的集电靴在接触面上滑动实现受流 L左导电轨 1的右端面、 中间轨 2的两端面以及右导电轨 3的左端而为相 :平行的斜面。 支板 4为 具有良好的导电性、 可焊性和有足够机械强度的金属材料， 支板 4分为通过焊接或者铆 接的方式安装在左导电轨 1底面的左支板 41和安装在右导电轨 3底面的右支板 42， 两 者非对称安装， 如图 3至图 5所示， 二者之间有一定的高度差。 电导体 5为具有良好导 电性能的铜排， 分为左电导体 51和右电导体 52， 左电导休 5 1的左端与左支板 41固定、 右端悬資， 右电导体 52的右端与右支板 42固定、 左端悬置； 导线 6为编织软铜线， 分 为左导线 61和右导线 62， 左导线 61的两端分别连接左电导体 5 1的固定端和右电导体 52的恳置端， 右导线 62的两端分别连接在左电导体 51的悬置端和右电导休 52的固定 端， 导线 6连接后能保持松弛。 在左导电轨 1和右导电轨 3的中部分别设有腰圆形的左 水平调节孔 1 1和右水平调节孔 31 , 中间轨 2的中部设有固定孔 8， 鱼尾板 7通过螺栓 71、 左水平调节孔 11、 右水平调节孔 31和固定孔 8安装在左导电轨 1、 中间轨 2和右 导电轨 3中部的两侧， 紧固在中间轨 2上的螺检 71及螺母紧固力矩大， 而与左右 I乜 轨 1、 3相连接的螺栓 7 1及螺母上的紧固力矩小， 这样两边的螺栓可以分别在两边的左 水平调节孔 1 1和右水平调节孔 31内作纵向滑动， 因而使得鱼尾板 7与左导电轨 1和右 导电轨 3滑动连接， 与中间轨 2固定连接。
本实施例主要用于城市轨道供电***中， 通过将左右导电轨 1、 3及中间轨 2的接 缝设覽为相互平行的斜而， 可以使导电轨的接触而表面连续， 问隙可以调整并且可以 ffi 合， 从而使集电靴在通过导电轨接头间隙吋能平滑地从一端过渡到另一端， 除集电靴 在膨胀点过敉时运行中产生电弧。 通过将左导电轨 1和右导 ¾轨 3的端部连接在一起， 以提高导电轨输送电能的可靠性， 这种可膨胀的导电轨接头结构简单， 拆装 便， 只需 用若千个螺栓便能将电导体 5和导线 6固定好。由于电导体 5和导线 6形成了一个环路， 可靠性很高， 即使环路中出现了一个断点也能保证电能的传输， 此外， 鱼尾板 7以及安 装鱼尾板 7的螺栓 71均参与导电轨的电连接， 这能更为有效地保证连接的可靠性。 导 线 6采用编织软铜线非常柔软， 不会影响导电轨发生热胀冷缩时的自 ώ伸缩： 于导线 6两端均固定在电导体 5」：， 而两根电导体 5处于同一水平而上， 因此导线 6只会在水 平而内弯曲， 不可能发生因伸屈变形而与大地接触。
见图 4 , 当温度升高吋， 左导电轨 1和右导电轨 3发生伸展， 左电导体 51和右电导 体 52发生相对移动， ώ于导线 6为编织软铜线， 编织软铜线非常柔软， 因此不会影响 导电轨温度升高吋的伸展。
同样见图 5 , 当温度降低时， 左导电轨 1和右导电轨 3发生收缩， 左电导体 5 1和右 电导体 52同样发生相对移动， 同样 于导线 6为编织软铜线， 编织软铜线非常柔软， 因此不会影响导电轨温度降低时的收缩。 应当理解， 以上所描述的具体实施例仅用于解释本发明， 并不用于限定本发明。 ώ 本发明的精神所引伸出的显而易见的变化或变动仍处于本发明的保护范 之中。

Claims

权 利 要 求 书
1、 一种导电轨接头， 包括左导电轨 （1)、 中间轨 （2) 和右导电轨 （3)， 左导电轨 (1) 的右端面、 中间轨 （2) 的两端面以及右导电轨 （3) 的左端面为相互平行的斜面， 其特征在于： 还包括支板 （4)、 电导体 （5) 和导线 （6); 所述支板 （4) 分为安装在左 导电轨 （1) 底面的左支板 （41) 和安装在右导电轨 （3) 底面的右支板 （42)， 两者非 轴对称安装； 所述电导体 (5) 分为左电导体 (51) 和右电导体 （52)， 左电导体 (51) 的左端与左支板 （41) 固定、 右端悬置， 右电导体 （52) 的右端与右支板 （42) 固定、 左端悬 ¾; 所述导线 （6) 分为左导线 （61) 和右导线 （62)， 左导线 （61) 的两端分别 连接左电导体 （51) 的固定端和右电导体 （52) 的悬置端， 右导线 （62) 的两端分别连 接在左电导体 （51) 的悬 S端和右电导体 （52) 的固定端； 所述导线 （6) 率接后能保 持松弛。
2、 根据权利要求 1所述的一种导电轨接头， 其特征在于： 所述支板 （4) 通过焊接 或者铆接的方式与左导电轨 （1) 和右导电轨 （3) 连接。
3、 根据权利要求 2所述的一种导电轨接头， 其特征在于： 所述电导体 （5) 通过螺 栓与支板 （4) 固定， 导线 （6) 通过螺栓与电导体 （5) 固定。
4、 根据权利要求 3所述的一种导电轨接头， 其特征在于： 所述支板 （4) 为具有良 好的导电性、 可焊性和有足够机械强度的金属材料。
5、 根据权利要求 4所述的一种导电轨接头， 其特征在于： 所述电导体 （5) 为具有 良好导电性能的铜排。 '
6、 根据权利要求 5所述的一种导电轨接头， 其特征在于： 所¾导线 （6^ 为编织软 铜线。
7、 根据权利要求 6所述的一种导电轨接头， 其特征在于： 还包括鱼尾板 （7); 所 述在左导电轨 （1) 和右导电轨 （3) 的中部分别设有左水平调节孔 （11) 和右水平调节 孔 （31)， 中间轨 (2) 的中部设有固定孔 (8), 鱼尾板 (7) 迎过螺栓 （71)、 左水平调 节孔 （11)、 右水平调节孔 （31) 和固定孔 （8) 安装在左导电轨 （1)、 中间轨 （2) 和 右导电轨（3) 中部的两侧， 且鱼尾板（7) 与左导电轨（1)和右导电轨 （3)滑动连接， 与中间轨 （2) 固定连接。
8、 根据权利要求 7所述的一种导¾轨接头， 其特征在于： 所述鱼尾板 （7) 为铝合 金材料， 安装鱼尾板 （7) 的螺栓 （71) 为不锈钢材料。 '
9、 根据权利要求 8所述的一种导电轨接头， 其特征在于： 所述鱼尾板 （7) 和螺柠 (71) .参与导电轨的电连接。
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