阅读说明：本技术 城市轨道交通接触式供电牵引装置 (Contact type power supply traction device for urban rail transit ) 是由 邓春兰 欧志新 段明华 于 2019-11-30 设计创作，主要内容包括：本发明涉及轨道交通领域,具体公开了城市轨道交通接触式供电牵引装置,包括车体、安装在车体上的导向轮、轨道和接线机构,导向轮与轨道滚动接触,接线机构包括导线支撑杆、接线盒和导电块,接线盒内设有若干通电单元以及对通电单元的通电情况进行检测的电流检测单元,导电块与通电单元滑动接触,导线支撑杆与导电块的一端连接,导线支撑杆的另一端与车体固定连接且电连接；相邻两个通电单元电连接。本方案能分段式对车体进行供电,进而可以分段式的监测故障情况,降低维护成本。(The invention relates to the field of rail transit, and particularly discloses a contact type power supply traction device for urban rail transit, which comprises a vehicle body, a guide wheel, a rail and a wiring mechanism, wherein the guide wheel is arranged on the vehicle body and is in rolling contact with the rail; two adjacent power-on units are electrically connected. This scheme can the sectional type supply power to the automobile body, and then the monitoring fault condition that can the sectional type reduces the maintenance cost.)

1. The urban rail transit contact type power supply traction device comprises a vehicle body, guide wheels, a rail and a wiring mechanism, wherein the guide wheels are arranged on the vehicle body and are in rolling contact with the rail; two adjacent energizing units are electrically connected.

2. The urban rail transit contact power supply traction device according to claim 1, wherein the conductive block is cylindrical, the energizing unit comprises a first rotating rod, a first conductive plate and a second conductive plate, the first conductive plate and the second conductive plate are coaxially and fixedly mounted on the side surface of the first rotating rod, and the conductive block is in sliding contact with the first conductive plate or the second conductive plate; two ends of the first rotating rod are rotatably connected with the inner wall of the junction box, and the axis of the first rotating rod is parallel to the axis of the track; the second conducting strip is arranged opposite to the first conducting strip.

3. The urban rail transit contact power supply traction device according to claim 2, wherein an arc-shaped surface attached to the first conductive sheet or the second conductive sheet is arranged on a side surface of the conductive block.

4. The urban rail transit contact power supply traction device according to claim 3, wherein the wire support rod is L-shaped, the conductive block is horizontally mounted on the lower end of the wire support rod, a wire is coaxially arranged in the wire support rod, and the wire is electrically connected with the conductive block; the upper end of the wire supporting rod is fixedly connected with the vehicle body, and the wire is coaxially arranged in the supporting rod.

5. The urban rail transit contact power supply traction device according to claim 4, wherein the conductive block is rotatably connected with the wire support rod, a graphite layer is arranged between the conductive block and the wire support rod, and the conductive block is in sliding contact with the wire.

6. The urban rail transit contact type power supply traction device as claimed in claim 5, wherein a socket for horizontally inserting the conductive block is arranged on one side of the junction box away from the rail, the socket is provided with two mounting cavities symmetrically arranged along a horizontal axis of the socket in the side of the junction box away from the rail along the horizontal axis of the junction box, the mounting cavities are communicated with the socket, an elastic membrane is fixedly mounted at a communication position of the mounting cavities and the socket, a plurality of vertically arranged springs are arranged in the mounting cavities, one end of each spring close to the conductive block abuts against one side of each elastic membrane close to the mounting cavity, and one side of each elastic membrane far from the spring can be in contact with one side of the other elastic membrane far from the spring.

7. The urban rail transit contact power supply traction device according to claim 6, wherein a flexible support plate is arranged between the spring and the elastic membrane, one side of the support plate is fixedly connected with the spring, and the other side of the support plate is fixedly connected with the elastic membrane.

8. The urban rail transit contact power supply traction device according to claim 7, further comprising a second rotating rod, a third conductive sheet and a standby power supply, wherein two ends of the second rotating rod are rotatably connected with the inner wall of the junction box, the axis of the second rotating rod is parallel to the axis of the track, the third conductive sheet is fixedly installed on the side surface of the second rotating rod and is connected with the standby power supply, and the length of the third conductive sheet is equal to that of the first conductive sheet.

9. The urban rail transit contact power supply traction device according to claim 8, wherein the first rotating rod is rotatably mounted below the conductive block, and the second rotating rod is positioned above the conductive block.

10. The urban rail transit contact power supply traction device according to claim 9, further comprising a buffer unit arranged in the junction box, wherein the buffer unit comprises a buffer plate, a buffer pad and a buffer spring, the buffer plate is vertically and fixedly installed in the junction box, a through hole for fixedly installing the buffer pad is formed in the center of the buffer plate, one end of the buffer spring is fixedly connected with one side, close to the rail, of the junction box, and the other end of the buffer spring is fixedly connected with the side face of the buffer pad; one side of the buffer cushion, which is far away from the buffer spring, is propped against one end, which is far away from the lead support rod, of the conductive block.

Technical Field

The invention belongs to the field of rail transit, and particularly relates to a contact type power supply traction device for urban rail transit.

Background

With the development of cities, the development of public transportation is increasingly rapid, wherein rail transportation is an important transportation means for solving the problem of urban congestion, the rail transportation generally has the advantages of large transportation volume, high speed, dense shift, safety, comfort, high punctuation rate, all weather, low transportation cost, energy conservation, environmental protection and the like, and the rail transportation is constructed in each large city in the whole country in succession.

In order to ensure the safe operation of the rail transit, a traction power supply system is an important part of the rail transit, an overhead contact network (flexible) traction system is mostly adopted in a conventional traction power supply system, the system has high failure rate, when one line in the system has a problem, a large amount of detection is needed to acquire a failure point, the maintenance cost is high, the operation cost of the rail transit is greatly increased, and the problem needs to be solved.

Disclosure of Invention

The invention aims to provide an urban rail transit contact type power supply traction device for supplying power to a vehicle body in a sectional manner, so that the fault condition is monitored in a sectional manner, and the maintenance cost is reduced.

In order to achieve the above object, the basic scheme of the invention is as follows: the urban rail transit contact type power supply traction device comprises a vehicle body, guide wheels, a rail and a wiring mechanism, wherein the guide wheels are installed on the vehicle body and are in rolling contact with the rail; two adjacent power-on units are electrically connected.

The principle and advantages of the basic scheme are as follows: the current detection unit can detect the electric connection condition of a single electrifying unit, so that maintenance personnel can maintain the corresponding electrifying unit conveniently, the fault occurrence range can be narrowed, and the maintenance cost can be effectively reduced.

Meanwhile, the conductive block is in sliding contact with the electrifying unit, so that the communication of the circuit and the transmission of electric energy are realized, the conductive block can continuously and stably transmit the electric energy, and meanwhile, the wire supporting rod can provide guarantee for the communication of the circuit.

Furthermore, the conductive block is cylindrical, the electrifying unit comprises a first rotating rod, a first conductive sheet and a second conductive sheet, the first conductive sheet and the second conductive sheet are coaxially and fixedly arranged on the side surface of the first rotating rod, and the conductive block is in sliding contact with the first conductive sheet or the second conductive sheet; two ends of the first rotating rod are rotatably connected with the inner wall of the junction box, and the axis of the first rotating rod is parallel to the axis of the track; the second conducting strip is arranged opposite to the first conducting strip.

Because the conductive block is cylindrical, when the conductive block rotates relative to the first conductive sheet or the second conductive sheet, the conductive block can be kept in a contact state with the first conductive sheet or the second conductive sheet, so that the circuit is continuously communicated; meanwhile, when the current detection unit sends a signal that the corresponding electrifying unit is broken, and when the first conducting plate is broken, the first rotating rod is rotated, the second conducting plate is rotated to the position of the first conducting plate, the second conducting plate is attached to the arc-shaped surface of the conducting block, stable transmission of electric energy can be achieved again, the repairing speed is high, convenience is achieved, and normal operation of a track system can be guaranteed.

Further, the side surface of the conductive block is provided with an arc surface attached to the first conductive sheet or the second conductive sheet.

When the first conducting strip or the second conducting strip is attached to the side face of the conducting block, the first conducting strip or the second conducting strip can be attached to the arc face of the conducting block, so that the first conducting strip or the second conducting strip can be in close contact with the conducting block, and stable transmission of electric energy is facilitated.

Furthermore, the lead support rod is L-shaped, the conductive block is horizontally arranged at the lower end of the lead support rod, a lead is coaxially arranged in the lead support rod, and the lead is electrically connected with the conductive block; the upper end of the wire supporting rod is fixedly connected with the vehicle body, and the wire is coaxially arranged in the supporting rod.

The wire is arranged on the wire supporting rod, the wire supporting rod can protect the wire, and the wire and the conductive block are convenient to keep an electric connection state.

Further, the conducting block is rotatably connected with the lead supporting rod, a graphite layer is arranged between the conducting block and the lead supporting rod, and the conducting block is in sliding contact with the lead.

When the conductive block is driven by the lead support rod to horizontally move along the junction box, the conductive block and the graphite layer slide relatively, so that the conductive block can be in a soft contact state relative to the lower end of the lead support rod, and the conductive block can be prevented from being damaged after being in hard contact; meanwhile, the graphite layer can enable the conductive block and the lead to be in a stable electric connection state.

Further, be equipped with on orbital one side is kept away from to the terminal box and supply conducting block level male socket, the socket sets up two installation cavities that the terminal box set up along the horizontal axis symmetry of socket in keeping away from orbital one side along the horizontal axis of terminal box, installation cavity and socket intercommunication, the fixed mounting of installation cavity and the intercommunication department of socket has an elastic membrane, and be equipped with the spring of a plurality of vertical settings in the installation cavity, the one end that the spring is close to the conducting block offsets with one side that the elastic membrane is close to the installation cavity, one side that the spring was kept away from to the elastic membrane can be kept away from one side contact of spring with another elastic membrane.

When the conducting block is driven by the lead supporting rod to move horizontally along the socket, one end of the conducting block close to the lead supporting rod is sequentially abutted against the upper elastic film and the lower elastic film, so that the springs in the installation cavity are sequentially compressed, the conducting block can stably pass through the installation cavity, and the conducting block is also stably contacted with the first conducting strip; treat the conducting block and corresponding spring dislocation back, the spring extends naturally, and upside elastic membrane and downside elastic membrane draw close to the socket department under the support of spring for the lower surface of upside elastic membrane is in the same place with the upper surface laminating of downside elastic membrane, realizes the closure to the terminal box, avoids the outside dust of terminal box or steam to enter into in the terminal box, can reduce the probability of line fault.

Furthermore, a flexible supporting plate is arranged between the spring and the elastic membrane, one side of the supporting plate is fixedly connected with the spring, and the other side of the supporting plate is fixedly connected with the elastic membrane.

The setting of backup pad can be more be convenient for with the stable transmission of elasticity to the elastic membrane of spring, let the stable laminating of elastic membrane of both sides.

Further, still include second dwang, third conducting strip and stand-by power supply, the both ends of second dwang are rotated with the inner wall of terminal box and are connected, and the axis of second dwang is parallel with orbital axis, and third conducting strip fixed mounting is on the side of second dwang, and the third conducting strip is connected with stand-by power supply, and the length of third conducting strip equals with the length of first conducting strip.

After the current detection unit detects that the first conducting strip and the second conducting strip on the first rotating rod are both broken, the second rotating rod is rotated, so that the third conducting strip on the second rotating rod is in contact with the conducting block, the standby power supply is communicated, the normal operation of the whole track system is realized, and the paralysis of the whole track system is avoided.

Further, the first rotating rod is rotatably installed below the conductive block, and the second rotating rod is located above the conductive block.

The first rotating rod and the second rotating rod are arranged on two sides of the conducting block, so that the positions of the first rotating rod and the second rotating rod can be conveniently distinguished, and the connection condition of the first conducting plate, the second conducting plate or the third conducting plate and the conducting block can be conveniently controlled.

The buffer unit comprises a buffer plate, a buffer pad and a buffer spring, the buffer plate is vertically and fixedly installed in the junction box, a through hole for fixedly installing the buffer pad is formed in the center of the buffer plate, one end of the buffer spring is fixedly connected with one side, close to the track, of the junction box, and the other end of the buffer spring is fixedly connected with the side face of the buffer pad; one side of the cushion pad, which is far away from the buffer spring, is propped against one end of the conductive block, which is far away from the wire support rod.

When the conducting block is displaced in the horizontal direction, the buffer cushion and the buffer spring can buffer the conducting block, so that the conducting block is further ensured to be electrically connected with the first conducting strip, the second conducting strip or the third conducting strip.

Drawings

Fig. 1 is a structural sectional view in a front view direction of an urban rail transit contact power supply traction device in embodiment 1 of the present invention;

FIG. 2 is an enlarged view of the mounting box and conductive block shown on the left side of FIG. 1;

FIG. 3 is a right side view of the power-on unit of FIG. 2;

FIG. 4 is an enlarged view of the left mounting box and the conductive block in embodiment 2 of the present invention;

fig. 5 is an enlarged view of a portion a in fig. 4.

Detailed Description

The following is further detailed by the specific embodiments:

reference numerals in the drawings of the specification include: the automobile body 10, the guide wheel 101, the rail 102, the wire support rod 30, the conductive block 301, the arc-shaped surface 302, the annular groove 303, the graphite layer 304, the junction box 40, the first rotating rod 401, the first conductive sheet 402, the second conductive sheet 403, the socket 404, the mounting cavity 405, the elastic film 406, the spring 407, the second rotating rod 408, the third conductive sheet 409, the support plate 410, the buffer plate 411, the buffer pad 412 and the buffer spring 413.