KR101878434B1 - Power control device of rail vehicle - Google Patents

Abstract

The present invention relates to a power control device of a rail vehicle that is capable of gently transferring a rotary force to a driving roller of the rail vehicle and stably performing braking at the time of stopping the rail vehicle to ensure safety in braking. According to the present invention, the power control device of a rail vehicle includes: a motor fixed to a fixed base fixed to a portion of a vehicle body to generate a rotary force with the power controlledly applied from the outside; a transmission means having a driving gear shaft-coupled to the rotary shaft of the motor to rotate in the same direction as the rotary shaft, a driven gear rotating with the rotary force of the driving gear, transmission gears disposed between the driving gear and the driven gear to shift a rotary speed, and a brake gear member rotating or stopping the rotating according to the control of an electronic parking brake (EPB) in a process where the rotary force is transferred from the driving gear to the driven gear; the driving roller idleably coupled to the fixed base, shaft-coupled to the driven gear of the transmission means to rotate the same direction as the driven gear with the rotary force received therefrom, and driven guidedly by a rail disposed in a lengthwise direction of a line; and a manual lining mechanical brake means for transferring a frictional force to an outer peripheral surface of a brake wheel in such a manner as to allow both ends of a brake band to be close thereto through a driver′s manual manipulation of a brake wire.

Description

Technical Field [0001] The present invention relates to a power control device for a rail vehicle,

The present invention relates to a power control apparatus for causing a rail vehicle having a traveling roller to travel while guiding the rail in a state in which the rails are arranged in the longitudinal direction, to transmit and stop driving power to and from the traveling roller, Is a device for controlling the power of a railway vehicle, which is capable of smoothly transmitting a rotational force to the traveling roller, preventing the state of the railway vehicle being stopped at the time of stopping the railway vehicle from being damaged, stably braking the vehicle, .

Generally, a rail vehicle is a single rail (one orbit) railroad, and is one of electric vehicles that is guided by one running rail made of concrete or iron beam.

Such a rail vehicle is divided into two types, namely, a mode in which the vehicle runs on a track in accordance with a vehicle support system, and a formula in which the vehicle runs in a trajectory.

Such a rail car is attracting attention as a future transportation means of the city because it is cheap in construction cost, it is beautiful in design and it has excellent passenger view so that it can meet various needs of passengers.

In addition, the rail car is suitable for medium-sized transportation because the transportation scale is between the urban railway and the bus. Because of this characteristic, most of the urban transportation plan is classified as light rail, and it is applied as auxiliary transportation means of large cities and main transportation means of small and medium cities do.

On the other hand, a rail vehicle requires a braking device for stopping and decelerating at the time of running, but normally applies the braking system of the railroad vehicle as it is.

Generally, a railway vehicle is equipped with an air brake system that generates braking force by using compressed air. The air brake system is widely used in railway vehicles because it exhibits greater braking force than a hydraulic braking system.

As disclosed in Korean Patent Laid-Open Publication No. 10-2013-0024436, an air brake system for a railway car is known, for example, as an air brake system for a railway car, which comprises an air compressor and an air compressor A main air cylinder for storing the compressed air and exhausting the compressed air stored by the signal of the simultaneous braking control unit of the parking system; and a control unit for transmitting compressed air connected to the main air cylinder and exhausting the compressed air by the signal of the braking control unit during emergency braking, A third valve that is connected to the first valve and delivers the compressed air and exhausts the compressed air according to a signal from the braking control unit during commercial braking, And a front wheel and a rear wheel braking portion that are connected to each other and braked by exhausting the compressed air.

In addition, as disclosed in Korean Patent Registration No. 10-1584325 (name: monorail vehicle common-pressure braking device), when a braking demand signal is input from a vehicle control and monitoring device of a monorail vehicle, A braking operation device for converting an electric signal output from the braking control device into an air signal, an idling conversion device for converting an air signal output from the braking operation device into an oil pressure signal, A braking device composed of a hydraulic cylinder that performs friction braking by a hydraulic pressure signal is used.

On the other hand, in Korean Patent Laid-Open No. 10-2013-0097401 (titled "Braking device having a magnetic base and a braking system and a rail bike using the same), a magnetic force is selectively generated by a magnetic base, A braking unit that causes the magnetic base and the rail to closely contact with each other by the generated magnetic force to generate a braking force; A lever rotatably installed on one side of the braking unit for switching the magnetic force of the magnetic base to be on / off; An operating portion for providing a tensile force to generate a magnetic force of the magnetic base of the braking portion; A cable connecting part connected to one side of the lever and connected to the other side of the operating part to transmit a tensile force of the operating part so that the lever is switched on; And a braking elastic body which is provided between the braking portion and the lever so that when the tensile force by the operating portion disappears, the braking elastic body displaces the lever such that the lever is switched off.

In addition, as disclosed in Korean Utility Model Registration No. 20-0334816 (name: brake device of rail wheel), a flange portion protruding at least in one direction is formed, A base member; An actuating member provided on the bass member for lowering or raising the rod during braking or non-braking of the wheel; An interlocking member coupled to the lower end of the rod of the actuating member and having through holes on both sides thereof and integrally interlocking with the actuating member; A roller member inserted into the through hole of the interlocking member to make a rolling contact along the through hole; And a braking wedge member provided on the roller member for braking the wheels while descending when the interlocking member descends and being gathered inward.

Korean Patent Publication No. 10-2013-0024436 Korean Patent Registration No. 10-1584325 Korean Patent Publication No. 10-2013-0097401 Korea Utility Model Registration No. 20-0334816

However, since the power control apparatuses of the conventional rail vehicle as described above realize the control of the rotational force applied to the running roller through a single electronic control configuration, they can not actively respond when an electronic error or an accident occurs, There was a problem.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the related art, and it is an object of the present invention to provide a rail vehicle which smoothly transmits a rotational force to a running roller of a rail vehicle, And to provide a power control device for a railway vehicle which is capable of stably braking to ensure safety.

In order to accomplish the above object, according to the present invention, there is provided an apparatus for controlling power of a railway vehicle, the apparatus comprising: a fixed base fixed to a part of a vehicle body; A motor; A driven gear which is axially coupled to a rotating shaft of the motor and rotates in the same direction, a driven gear which is rotated to receive the rotational force of the movable gear, and a driven gear which is arranged between the driven gear and the driven gear, Shift means having a braking gear member that is rotated and stopped to rotate under the control of an electronic parking brake (EPB) in the course of transmitting rotational force from the movable gear to the follower gear; A traveling roller that is idly rotatably mounted on the fixed base and is axially coupled to the driven gear of the transmission to receive a rotational force and to rotate in the same direction and to be guided by a rail disposed in a lengthwise direction of the rail, A power control apparatus for a rail vehicle, comprising: A braking wheel axially coupled to a rotating shaft of the traveling roller and rotated in the same direction; A braking band disposed around the outer circumferential surface of the braking wheel and spaced apart so that both ends thereof are close to and spaced from each other; A braking wire whose end is fixed to one end of the braking band and brought close to both ends of the braking band according to the application of the linear motion; And an elastic spring arranged between both ends of the braking band and adapted to apply an elastic force to be spaced apart from each other.

The power control apparatus for a railway vehicle according to the present invention as described above is characterized in that the drive roller of the rail vehicle is rotated at a low speed through the speed change means to rotate the drive roller, And the driver can be locked by the depth of the brake step according to the speed of the vehicle, the rotation of the engine, and the operation of the brake when the rail vehicle is stopped due to the unrotated rotation of the traveling roll, And has an effect of braking stably through control of the brake.

In addition, when the rail vehicle is stopped, the driver manually operates the braking wire to bring the both ends of the braking band close to each other, thereby transmitting frictional force to the outer circumferential surface of the braking wheel to prevent damage to the stationary state. It has an effect of securing further.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an outline perspective view showing a power control apparatus for a rail vehicle according to an embodiment of the present invention; Fig.
2 is a schematic perspective view showing a power control apparatus for a rail vehicle according to the present embodiment.
3 is a schematic bottom cross-sectional view showing a power control apparatus for a rail vehicle according to the present embodiment.
Fig. 4 is a schematic cross-sectional exemplary view showing a power control apparatus for a rail vehicle according to this embodiment. Fig.
Fig. 5 is a schematic view showing the use state of a power control apparatus for a rail vehicle according to the embodiment; Fig.
6 is a schematic view showing a manual lining mechanical brake means applied to a power control apparatus for a rail vehicle according to this embodiment;
Figs. 7 and 8 are schematic views showing a running roller applied to a power control apparatus for a rail vehicle according to the present embodiment. Fig.
Fig. 9 and Fig. 10 are schematic views showing another example of a running roller applied to a power control apparatus for a rail vehicle according to this embodiment. Fig.
11 is a schematic view showing a transmission means applied to a power control apparatus for a rail vehicle according to the present embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a power control apparatus for a rail vehicle according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more fully describe the present invention to those skilled in the art. Therefore, the shapes and the like of the elements in the drawings can be exaggeratedly expressed to emphasize a clearer description. It should be noted that in the drawings, the same members are denoted by the same reference numerals. Detailed descriptions of well-known functions and constructions which may be unnecessarily obscured by the gist of the present invention are omitted.

1 to 11 are diagrams showing a power control apparatus for a rail vehicle according to an embodiment of the present invention. The power control apparatus 1 for a rail vehicle according to the present embodiment includes: A motor (3) fixed to a stationary base (2) fixed to a stationary portion and adapted to generate a rotational force by being externally controlled by a power source; And a traveling roller 4 which is guided by the rail 10 arranged to have a length in the longitudinal direction of the rail while being rotated by receiving the rotational force generated from the motor 3 and running.

That is, the traveling roller 4 receives the rotational force of the motor 3 and rotates to travel the rail 10, so that the vehicle body provided with the fixed base 2 moves along the rail 10 Drive.

In the above, a plurality of gears 11 are provided on one side of the rail 10 in a longitudinal direction thereof; On the outer circumferential surface of the running roller (4), gear pins (41) for gearing with the gears (11) are provided; It is preferable that the gear pins 41 move while gearing with the gears 11 when the traveling roller 4 rotates.

On the other hand, the traveling roller 4 is formed through a casting process; The gear pins (41) are formed through a forging process; 9 and 10, since the gear pins 41 are fitted into the fixing holes 42 formed in the driving roller 4 and are assembled together, It is most preferable to be able to form it while maximizing the durability of the substrate.

9 and 10, in the power control apparatus 1 for a rail vehicle according to the present embodiment, the running roller 4 is fixed to the fixed hole 42 and the gear pin 41 So that the state of the gear pin (41) is stably maintained in the fixing hole (42) by correcting when the volume of the gear pin (41) changes due to environmental changes due to heat And a correction ring 43 adapted to be rotated.

That is, when the volume of the gear pin 41 increases due to a high temperature in summer. The correction ring 43 is elastically offset to maintain a stable engagement state; When the volume of the gear pin 41 is reduced by low temperature in winter, the correction ring 43 is elastically corrected and the stable engagement state is maintained.

The correction ring 43 is preferably made of a material having a higher elastic force than the gear pin 41 and having an elastic force smaller than that of the running roller 4. [

The power control apparatus 1 of the rail vehicle according to this embodiment includes a transmission means 5 disposed between the motor 3 and the traveling roller 4 to shift the rotational force to a low speed and to transmit the rotational force to the traveling means 4; .

That is, the rotational force of the motor 3, which generates a high rotational torque, is shifted to the low speed through the transmission means 5 so that the traveling roller 4 has a stable running speed.

The transmission means 5 of the power control apparatus 1 of the rail vehicle according to this embodiment includes a movable gear 51 which is axially coupled to the rotating shaft of the motor 3 and rotates in the same direction; A driven gear (52) rotated by receiving the rotational force of the movable gear (51) and engaged with a shaft of the running roller (4) and rotating in the same direction; A transmission gear 53 disposed between the movable gear 51 and the driven gear 52 for shifting the rotational speed thereof; (EPB) 54 which is operated in accordance with the calculation of the control means not shown in the process of transmitting the rotational force from the movable gear 51 to the driven gear 52, And a braking gear member 55 adapted to stop rotation.

That is, the transmission gears 53 shift the low speed between the movable gear 51 and the driven gear 52, The rotation is stopped and braked by the braking gear member 55 operated through the electromagnetic brake 54.

In the above, the electronic brake 54 is normally desired to be made through configuration and control to which a known technique is applied; It is most preferable to apply it according to the user's selection.

When the vehicle body is standing, the rail vehicle to which the electromagnetic brake 54 is applied judges the speed of the vehicle body, the rotation of the engine, and the operation of the electromagnetic brake by the control means so that the driver can lock the brake pedal .

Therefore, even if the driver does not step on the brake pedal during the stop, the brake is not released.

When starting the vehicle, the brake pedal will be released automatically when the brake pedal is depressed.

At this time, even when starting from the slope, it is not pushed backward, and even when the traffic jam is severe, the driver advances only when the speed is increased, so that it is not necessary to frequently depress the accelerator pedal.

In addition, even when driving, the control means detects the vehicle speed and recognizes that the vehicle is moving.

In the power control apparatus 1 for a rail vehicle according to the present embodiment as described above, the traveling roller 4 is provided on the fixed base 2 so as to be idle and is driven by the driven gears 52 of the transmission means 5 And is guided and guided by the rail 10, which is arranged to be rotatable in the same direction and has a length in the longitudinal direction of the rail.

The power control apparatus 1 of the rail vehicle according to the present embodiment as described above includes a braking wheel 61 axially coupled to the rotating shaft of the traveling roller 4 and rotated in the same direction; A braking band 62 disposed around the outer circumferential surface of the braking wheel 61 and spaced apart so that both ends thereof are close to and spaced from each other; A braking wire 63 whose end is fixed to one end of the braking band 62 and brought close to both ends of the braking band 62 according to the application of the linear motion; And a resilient spring (64) arranged between both ends of the braking band (62) and adapted to apply an elastic force to be spaced apart from each other.

That is, when the vehicle body is stopped, the driver manually operates the braking wire 63 to bring both ends of the braking band 62 close to each other to transmit frictional force to the outer peripheral surface of the braking wheel 61.

As a result, the unstably stopped state is prevented from being damaged, and stable braking is performed to secure safety.

In particular, when an electronic error or an accident occurs to the electronic brake 54, the driver can positively cope with the safety through the manual lining mechanical brake means 6 to further realize safety.

In the power control apparatus 1 for a railway vehicle according to the present embodiment as described above, the adjustment base 2 is provided with a fixed (not shown) fixed to the motor 3, the transmission means 5 and the running roller 4 A bracket 21 is provided; Preferably, a plurality of guide rollers 7, which are supported at the upper and lower portions of the rail 10 to prevent unauthorized departure at the time of traveling and run stably, are axially rotatably coupled to the stationary bracket 21.

Hereinafter, the operation and effect of the power control apparatus 1 of the rail vehicle according to the present embodiment will be described in detail.

The power control apparatus 1 for a rail vehicle according to the present embodiment generates a driving torque of the traveling roller 4 when a power is applied to the motor 3 through a control means.

At this time, the rotational force generated in the motor 3 is transmitted through the movable gear 51 and the transmission gears 53, the braking gear member 55, and the driven gears 52 constituting the transmission means 5 And is transmitted to a state of being shifted at a low speed so as to adjust and control the vehicle at a desired speed to operate the vehicle body.

On the other hand, when the vehicle body stops, the rotation of the braking gear member 55 is stopped and braked by the driving of the electromagnetic brake 54 controlled by the control means.

In addition, when the driver operates the braking wire 63 manually, both ends of the braking band 62 are brought close to each other to transmit a frictional force to the outer circumferential surface of the braking wheel 61, thereby maximizing the braking force.

As described above, the power control apparatus 1 of the rail vehicle according to the present embodiment is configured such that when the rail vehicle is stopped, the driver manually operates the braking wire 63 to bring both ends of the braking band 62 close And a manual lining mechanical brake means 6 for transmitting frictional force to the outer circumferential surface of the braking wheel 61 to prevent the endless state from being damaged.

It will be apparent to those skilled in the art that various modifications and equivalent arrangements may be made therein without departing from the scope of the present invention as defined by the appended claims and their equivalents. . Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

1: Power braking device 10: Rail
11: gear 2: fixed base
21: Fixing bracket 3: Motor
4: running roller 41: gear pin
42: Fixing hole 43: Correction ring
5: Transmission means 51:
52: driven gear 53: transmission gear
54: electromagnetic brake 55: brake gear member
6: Manual lining mechanical brake means
61: brake wheel 62: brake band
63: brake wire 64: elastic spring
7: guide roller

Claims (1)

A motor (3) fixed to a fixed base (2) fixed to a part of a vehicle body and adapted to generate a rotational force by being externally controlled by a power source; A movable gear 51 that is axially coupled to the rotating shaft of the motor 3 and rotates in the same direction; a driven gear 52 that is rotated to receive the rotational force of the movable gear 51; A transmission gear 53 disposed between the driven gear 51 and the driven gear 52 for shifting the rotational speed of the driven gear 51 and transmitting the rotational force to the driven gear 52; (5) having a braking gear member (55) adapted to stop rotating and stopping under the control of the control means A rail which is provided in the fixed base 2 so as to idle and which is axially engaged with the driven gear 52 of the transmission means 5 and rotates in the same direction and has a length in the longitudinal direction of the rail, 10 for guiding the vehicle to travel; A braking wheel 61 which is axially coupled to the axis of the traveling roller 4 so as to rotate in the same direction and a braking wheel 61 which surrounds the outer circumferential surface of the braking wheel 61 and has a gap A braking band 62 whose end is fixed to one end of the braking band 62 and whose both ends of the braking band 62 are brought close to each other in accordance with the application of the linear motion, And a manual lining mechanical brake means (6) arranged between both ends of the band (62) and adapted to apply an elastic force so as to be spaced apart from each other. The power control device (1) ;
On one side of the rail 10,
A plurality of gears 11 are provided in the longitudinal direction;
On the outer peripheral surface of the traveling roller 4,
And gear pins (41) that travel while gearing when the traveling roller (4) is rotated;
The traveling roller (4)
Formed through a casting process;
The gear pins (41)
Is formed through a forging process, is fitted and fixed to a fixing hole (42) formed in the running roller (4),
The traveling roller (4)
Is corrected elastically between the fixing hole (42) and the gear pin (41) when the volume of the gear pin (41) changes due to environmental changes due to heat, And a correction ring (43) for stably maintaining the engaged state of the gear pin (41);
The correction ring (43)
Is made of a material having an elastic force higher than that of the gear pin (41) and having an elastic force smaller than that of the running roller (4).

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