KR100903781B1 - A active pantagraph of electric locomotive - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a current collector (Pantograph) fixed to an upper portion of an electric vehicle including an electric locomotive and an electric vehicle, and in contact with an electric vehicle line to receive electric power required for the electric vehicle from the electric vehicle line. The present invention relates to a mobile current collector of an electric vehicle equipped with a mobile current collector configured to wire a tank line in a straight line instead of a zig-zag wire of a tank line for preventing abrasion (arc) phenomenon.

An electric vehicle equipped with a mobile current collector according to the present invention for achieving the above object is a current collector installed in the upper portion of the electric vehicle and the sliding contact with a straight wired electric chariot line to receive the electric power required for the electric vehicle; And a current collector movement means installed between the electric vehicle and the current collector, to move the current collector to the left and right at a set deviation during the operation of the electric vehicle.

Catenary, straight line, zigzag line, current collector, moving, deviation, wire

Description

A mobile pantagraph of electric locomotive

1 is a perspective view of a mobile current collector of an electric vehicle according to the present invention;

Figure 2a, b is a perspective view showing the operating state of the mobile current collector of the electric vehicle according to the present invention.

3 is a perspective view according to an embodiment of a mobile current collector of an electric vehicle according to the present invention. (Single arm type; single arm type)

4 is a side view of a general current collector (ridge type; cower frame cross type)

5 is a block diagram of a control unit of a mobile current collector of an electric vehicle according to the present invention;

Figure 6a is a plan view showing a state in which the conventional fixed collector moves in a zig-zag wired chariot.

Figure 6b is a plan view showing a state in which the mobile current collector of the electric vehicle according to the present invention to move while moving in a straight line cable.

7 is a graph showing a current collector deviation [mm] according to vehicle speed (10 [km / h], 40 [km / h]) of a control unit of a mobile current collector of an electric vehicle according to the present invention.

8 is a perspective view showing a state in which the mobile current collector of the electric vehicle according to the present invention is fixed to the current collector moving means.

The present invention relates to a current collector (Pantograph) that is fixed to the upper portion of the electric vehicle, and in contact with the tank line and receives electric power required for the electric vehicle from the tank line.

In general, an electric railway current collector (Pantograph) is fixed to the upper part of an electric vehicle (hereinafter referred to as an "electric vehicle") and is a device for drawing electric power from an overhead catenary such as ground wire and underground rigid wire to an electric vehicle. Maintains a constant pressure between the current collector plate and the tank line against uneven phenomena, and serves to supply power to the electric vehicle by sliding contact with the tank line.

The current collector is ideal for current collecting only when the electric vehicle lines are not maintained in some way or when the electric vehicle is fluctuated, but only when the electric vehicle lines and the current collector plate (Slip plate) are in sliding contact with a constant pressure, and the speed limit of the electric vehicle is directly related.

Therefore, in order to satisfy this, the current collector must be light weight with a small contact point and a small effective mass, sufficient current collection capacity and wear rate, low air resistance, low noise, and stable performance for a long time. Requirements must be met.

Here, the electric cable lines that are in sliding contact with the electric vehicle are wired as zigzag when viewed in plan view with the fixed current collector in order to prevent the occurrence of uneven wear (arc) with the current collector and to improve the electric current collector characteristics. It usually has a wire deflection of 200 [mm] and 250 [mm] at maximum.

However, this method requires a lot of time and cost because the trajectory deviation, which requires precision, depends on site construction and site adjustment, and the deviation varies greatly depending on external factors such as track injuries and sinking, wind pressure, vehicle vibration, and structure inclination. Difficulties in construction and continuous maintenance are required.

The present invention has been proposed to solve the above problems,

First, it is an object to configure a conventional zigzag wire of the tram line in a straight line, and to move the current collector in sliding contact with the tram line to the left and right in a width corresponding to the line deviation.

Secondly, it is an object to make the right and left moving speed of the current collector suitable for the speed of the electric vehicle.

Electric vehicle equipped with a mobile current collector according to the present invention for achieving the above object is

A current collector installed at an upper portion of the electric vehicle and slidingly contacted with a straight wired electric vehicle line to receive electric power for the electric vehicle; And

It is characterized in that it is provided between the electric vehicle and the current collector, including a current collector moving means for moving the current collector to the left and right at a set deviation during the operation of the electric vehicle.

Hereinafter, with reference to the accompanying drawings to describe the configuration of the present invention in more detail.

The mobile current collector of the electric vehicle according to the present invention basically includes a current collector 10 and a current collector moving means 20.

The current collector 10 is installed at an upper portion of the electric vehicle, and is supplied with power required for the electric vehicle by slidingly contacting the electric vehicle line 1, as shown in FIG. 4, a lower frame cross type. A current collector and a single arm type current collector applied to an electric locomotive, as shown in FIG. 1.

The role of each part in the structure of the two current collectors is not significantly different.

Referring to FIG. 4, the current collectors are basically provided with a collector-shoe 11 in contact with a vehicle line, and the current collector 11 is frame-assembled by a support device 12. It is assembled to the upper part of (13).

The frame assembly 13 is composed of the upper frame assembly (13a) and the lower frame assembly (13b), the lower frame assembly (13b) are intersected with each other, the lower end is mounted on each of the two main shafts under the force of the juice spring The pressure is transmitted to the current collecting shoe (11). Two spindles are connected by a balance bar and one spindle is inhibited by lever and link.

To describe the components of the current collector in more detail, the current collector is a current collector 11, the upper and lower frame assembly (13a, b), the juice spring (not shown), the working cylinder (16) and the rolling force increasing device, etc. Is done.

First, the collector-shoe (11) is usually composed of two, and is assembled by a support arm (Arm), the support arm is supported at each of four stable stably, the combination of the coil spring and rubber vero It is designed to absorb vibrations by a kind of air spring.

The one current collector shoe has four copper alloy wet plates and an aluminum alloy plate is used as the wet plate body.

In the frame assembly 13, the upper frame assembly 13a was lightly lightened so as not to affect the catenary contact performance, and the lower frame assembly 13b has a longer length than the upper frame assembly 13a and can withstand vibration and torsion. The lower end is assembled to the main shaft.

The juice spring (Main Spring) has two horizontally installed between the two main shafts, and serves to provide a pressing force for lifting the lower frame assembly (13b) by rotating the main shaft when the current collector lifting action.

The working cylinder 16 is a rubber diaphragm-type cylinder with a lowering spring that pulls in the direction of folding the lower frame to overcome the force of the juice spring when the current collector is lowered and is controlled by the working air pressure. .

The force spring increasing device (Force Spring) is mounted only on the resistance control car, and in the case of the rigid wire type system in the underground section, the height of the tank line is lower than that of the ground section, so that the current collector is in contact with the tank line in a state where the current collector is unfolded. It becomes difficult for the power to be exercised. At this time, the elasticity of the spring is applied in the state in which the lower mold is in contact with the apparatus for increasing the pressing force, and serves to increase the pressing force of about 1.5 [kg] than the ground section (about 7.5 [kg]).

1 and 6a and b, the tramline 1 in sliding contact with the current collector is zigzag when viewed in a plan view with a wire deflection of 200 [mm], as shown in FIGS. However, the tram line 1 according to the present invention is cut in a straight line as shown in Fig. 6B in plan view.

Here, the current collector device moving means 20 is provided in order to move the current collector that is in contact with the straight cable line in accordance with the straight line 200 [mm].

1 and 2a and b, the current collector moving means includes a frame 22, a driving means 24, a driving belt 26, and a current collector fixing part 28. Referring to FIGS.

The frame 22 is mounted on the insulator 15 positioned on the roof of the electric vehicle, and serves as a frame for fixing the driving belt 26, the driving means 24, and the current collector fixing part 28.

The drive belt 26 is installed on the upper portion of the frame 22, and serves to move the upper surface of the drive belt 26 to the left and right by the drive means 24 installed on the left and right.

Accordingly, a current collector holder 28 is installed on an upper surface of the drive belt 26, and an upper end of the insulator assembly 15 of the collector is fixed to the holder of the collector, and the belt is operated by the driving motor. The current collector fixing plate fixed to the plate is moved with a standard deviation of 200 [mm] and a maximum of 250 [mm]), and the current collector holder 28 fixed to the driving belt 26 is used to prevent the current collector from descending and rising. Therefore, it operates in the left and right (↔) direction.

In this first embodiment, only the frame assembly 13 of the current collector is coupled to the upper portion of the driving belt, and the remaining components of the current collector, such as the juice spring, the working cylinder, the pressure increasing device and the insulator 15, move the current collector. To be assembled at the bottom of the means.

8 and 3, which is a second embodiment of the present invention, the current collecting shoe 11, the upper and lower frame assembly (13a, b), the juice spring, the working cylinder and the increase in force and the insulator 15 are All are fixed to the upper surface of the drive belt 26 and even if connected by a separate wire, the object according to the present invention is the same.

The drive means 24 is preferably made of a motor, the current collector by the movement of the belt through the drive of the motor In order to have accurate and stable current collecting characteristics, the motor must move up to 200 [mm] and up to 250 [mm], so that the motor must have a large torque characteristic and maintain stable characteristics against bad conditions such as foreign substances and winter. .

According to the above configuration, in the case of the conventional zigzag line declination tramline system, the declination of the tram line is 200 [mm] up to 250 [mm] for every 50 [m] of the support span in the straight section (moving bracket In type, Out type) ) In other words, the current collector plate of the stationary current collector is in contact with the left and right 200 [mm], the maximum 250 [mm] of the vehicle lines when driving the vehicle in a straight road in such a situation.

However, the catenary wire according to the present invention is wired in a straight line having a 0 [mm] deviation in a straight section, and the movable collector plate deviation is in contact with the straight tank by moving the left and right 200 [mm] and a maximum of 250 [mm] in a straight tank line. As the vehicle progresses, the current collector is moved.

 The displacement of the mobile current collector will be 200 [mm] on either side of the first 0 [m], and at the time of 25 [m], the tank line will come into contact with the center of the current collector plate. Further progression results in a 200 [mm] deviation towards the opposite side of the current collector when reaching the next support.

Here, the speed of the vehicle should be considered most important when the current collector moves with a standard deviation of 200 [mm] left and right while the vehicle is in a straight line.

If the left and right movement speeds of the current collector 10 are constantly considered regardless of the speed of the vehicle, this will adversely affect the wear of the current collector plate. Therefore, the moving speed of the current collector must be operated in proportion to the low speed and high speed driving of the vehicle.

Therefore, the current collector movement means is provided with a controller 100 for moving the current collector in right and left proportional to the moving speed of the current collector.

The controller 100 includes a speed input unit 110, a deviation calculator 120, a deviation comparison unit 130, and a motor input unit 140.

First, prior to the description of the controller 100, the deviation of the current collector expressed by the relationship between the vehicle speed and time is expressed by Equation 1 below.

Equation 1

:

초에서의 집전장치의 편위 [mm],

: 차량속도 [km/h]here,

:

Deviation of current collector in seconds [mm],

: Vehicle speed [km / h]

The speed input unit 110 detects the speed of the electric vehicle and first converts the speed of the vehicle expressed in [km / h] corresponding to the input of the controller in units of [m / sec]. ),

Accordingly, the deviation calculation unit 120 divides this value by 50 [m] of the support span in a straight line (③). Here The seconds are input (④), and the current collector deviation is calculated (⑥) by multiplying the value 400 [mm] representing the left and right deviation 200 [mm] (⑤).

Accordingly, the deviation comparison unit 130 compares the difference (⑦) between the current deviation of the current collector and the previous deviation detected by the deviation calculation unit in the next step (⑧).

After all, the motor input unit 140 is limited to the inclination range because the current collector must satisfy the operation within the deviation of 400 [mm] (⑧), the total value passed through all the process to the input of the motor of the current collector (9).

 The deviation of the vehicle in operation at a speed of 10 [km / h] and 40 [km / h] using Equation 1 will be described with reference to FIG. 7.

The deviation of left and right 200 [mm] of the existing tank line was represented by 0 and 400 [mm] of the new axis, respectively. The vehicle operating at the speed of 10 [km / h] is from 200 [mm] to the right at 18 [sec]. Collector declination up to 200 [mm] passes through one cycle (solid line). Similarly, a vehicle operating at 40 [km / h] passes through a declination of 200 [mm] left and right at 4 [sec]. dotted line).

Here, the current collector of the chariot line is formed to have a left and right deviation + -200 [mm] within the span (for example 50m) between the support span (interval) {between the pole and the pole when the existing chariot is zigzag wired, left An inflection point is given at a time point from right to left or right to left, and the inflection point is 25m when the support span is 50m. In other words, 25m is wired to have a deviation of 200 [mm] to the left, and the remaining 25m is wired to have a deviation of 200 [mm] to the right}. It was.

Here, the current collector of the tank line is wired in a zigzag such that the existing tank line has a left and right deviation ㅁ 200 [mm] within 50m of the support span (the distance between the supports), and thus the left and right movement of the current collector according to the speed as described above based on 50m The speed was calculated.

In Equation 1 of the present invention

:

초에서의 집전장치의 편위 [mm],

: 차량속도 [km/h] here,

:

Deviation of current collector in seconds [mm],

: Vehicle speed [km / h]

However, in the present invention, since the catenary wire is wired in a straight line rather than a zigzag wire, the support span of the related art can be changed.

Therefore, the support span 50 of Equation 1 may be appropriately set according to the experiment of the actual speed and the wear rate and the two-line rate of the catenary.

That is, when the optimal support span according to the electric vehicle speed 50 [km / h] is 50m, if the wear rate and the moving speed of the current collector are optimal, the speed is 50 [km / h] when the moving speed of the current collector is fixed. When increasing from h] to 100 [km / h], the support span (inflection point) is set to 100 m.

This is to simplify the moving speed of the current collector according to the increase and decrease of the speed of the electric vehicle, and to maintain the optimum state for the reduction of wear and transfer rate.

Therefore, in Equation 1 of the present invention

:

초에서의 집전장치의 편위 [mm],

: 차량속도 [km/h]here,

:

Deviation of current collector in seconds [mm],

: Vehicle speed [km / h]

The support span, 50, may be appropriately set according to the experiment of the actual speed and wear of the tank.

That is, if the speed of the electric vehicle is 50 [km / h] and the support span is 100, if the wear of the current collector is optimal, even if the speed increases from 50 [km / h] to 100 [km / h] You can set the span to 100.

This is to adjust this when the electric vehicle proceeds at a very high speed, because the current collector may move from side to side too quickly and may adversely affect wear.

Next, the outer rail is laid high relative to the inner rail so that the electric vehicle can pass smoothly through the curved point, and the outer rail of the curve is higher than the inner rail to attract gravity to the center of the track. Calculation of the displacement of the mobile current collector according to the cant which prevents the deviation of the gravity direction caused by gravity. ① When the cant is not considered ② When the cant is considered ③ Cant and external influences (central acceleration, wind pressure) Cant and external In the above three cases considering the effects (central acceleration and wind pressure), the situation in which the vehicle has the outermost distance farthest from the tank line in the curved section is considered to estimate the deflection of the current collector and the tank line.

)이 500 [m]일 때이며, 각각의 설정에 대한 결과를 표 3에 나타내었다. The deflection at the outermost distances of the tanker and current collector for these three cases is the radius of curvature (

) Is 500 [m], and the results for each setting are shown in Table 3.

(

)로 나누어 표현하였다. In order to set the unfavorable situation of the vehicle which can occur in the actual curve, the influence of the centrifugal acceleration and the wind pressure of the vehicle toward the outside of the curve when the curve is driven is considered. Due to this effect, the knitting machine of the vehicle generates a direction opposite to the set cant amount, that is, the vehicle knitting is taken out of the curve and the degree of knitting is taken outward, respectively.

(

)

(

)을 고려하여 그 계산 결과를 표 3의 (3)에 나타내었다. Outward deflection for the worst environmental conditions

(

) And the calculation result is shown in Table 3 (3).

) = 500 [m]의 경우를 살펴보면 먼저 캔트만을 고려한 (2)의 경우 편위는 328 [mm]로 계산 되었고 여기에 곡선의 외방으로 향하는 힘 을

(

)로 적용하였다. That is, in case of (3), it is a situation to consider the external influence (centrifugal acceleration, wind pressure) after applying the cant of (2).

) = 500 [m]. In case of considering cant only, (2) the deviation was calculated as 328 [mm].

(

) Was applied.

의 값이 다음의 식에 대입되어 곡선의 외방으로 향하는 차량의 편기량이 구해진다. 따라서 차량 편기량은 다음과 같다.In this case as well

The value of is substituted into the following equation to determine the amount of knitting of the vehicle toward the outside of the curve. Therefore, the amount of vehicle deflection is as follows.

Equation 2

Since this value is toward the outside of the curve as in the previous case, it is determined to be 524.33 [mm] (= 400 + 124.33) by the sum of the deviation of 400 [mm] in the case of (1) without considering the cant.

(

)는 다시 각각 약 26, 52, 78 [mm]의 차량 들림을 나타내고 이 값은 실제로 큰 값이므로 현실적으로 발생하기 어려운 상황이라고 할 수 있을 것이다. At present, all the curved tracks in Korea have proper cant applied according to the radius and the speed of the vehicle. The current collector plate of the electric vehicle current collector (Lower frame cross type) has an effective current collector length of 500 [mm]. In addition, in the above case (3)

(

) Is about 26, 52, and 78 [mm], respectively, and this value is actually a large value, which may be difficult to occur in reality.

Table.1 Distance between current collector center and catenary for setting cant [mm]

According to the present invention configured as described above,

The present invention is configured to supply electricity of an electric vehicle by applying a straight line system of the tram line, the current collector device is in sliding contact with the linear wired tram line to the left and right.

Therefore, since the tramline is installed in a straight line in the center of the rail, it does not require many variables to adjust the deflection like the existing zigzag cable method, which can drastically reduce construction and maintenance costs and air, and contribute to the improvement of the tramline current collection quality. Since there is little need for this, maintenance is simpler and simpler than the existing zigzag wiring method, and the cost can be expected to be greatly reduced.

Claims (3)

A current collector installed at an upper portion of the electric vehicle and in sliding contact with a cable line linearly wired to receive electric power required for the electric vehicle; And And a current collector moving means installed between the electric vehicle and the current collector to move the current collector reciprocally in a horizontal direction in a horizontal direction by a predetermined deviation according to the operation of the electric vehicle. The method of claim 1, The current collector moving means A frame installed at an upper portion of the electric vehicle; Drive means installed in the frame; A driving belt which is moved left and right by a driving force of the driving means; And The electric vehicle equipped with a mobile current collector, characterized in that it comprises a current collector fixing portion is installed on the top of the drive belt for fixing the bottom of the current collector. The method of claim 2, The current collector moving means A speed input unit for detecting a speed of the electric vehicle, A deviation calculator for calculating the deviation of the current collector using a support span, a running time, and a preset left and right horizontal deviation value in a straight line based on the value detected by the speed input unit; A deviation comparison unit which compares the difference between the current deviation of the current collector and the previous deviation detected by the deviation calculator to limit the current deviation to operate within the set deviation, and reflects the value back to the deviation calculator; By including a motor input unit for repeatedly inputting the final calculated value through the deviation calculation unit and the deviation comparison unit to the input of the drive means of the current collector, An electric vehicle equipped with a mobile current collector, characterized in that it comprises a control unit for moving the current collector to the left and right according to the moving speed according to the moving speed of the vehicle.

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