KR20060044127A - Bogie car test apparatus and system using the same - Google Patents

Abstract

A bogie driving test apparatus is disclosed. The bogie driving test apparatus according to the present invention relates to a bogie test driving apparatus for driving a vehicle, comprising: a load excitation part for applying a load corresponding to the vehicle to a bogie, a driving source having a variable driving speed according to a predetermined pattern; And a raceway wheel for driving the wheels provided in the bogie, varying the speed of the trackwork lubrication by the pattern, and a bogie drive unit for driving the wheels loaded with the variable speed, and the wheels rotating by the trackwork lubrication. It is provided with a temperature sensing unit for detecting the temperature of. Accordingly, when testing the trolley supporting the vehicle, the load of the vehicle to be tested is applied with the same load as the actual vehicle, and the test of the trolley is carried out at various speeds at which the actual trolley runs, thereby increasing the reliability of the test.

Bogie, Test Drive, Journal Bearing, Pattern, Orbital Lubrication

Description

Bogie car test apparatus and system using the same

1 is an external view of a bogie for supporting and driving a vehicle,

2 is a cross-sectional view according to an example of the balance driving test apparatus according to the present invention,

3 is a view showing an example of a balance test system using the balance driving test apparatus shown in FIG.

4 is a diagram illustrating an embodiment of a data collector and a data processor illustrated in FIG. 3;

FIG. 5 is a diagram illustrating another embodiment of a data collector and a data processor illustrated in FIG. 3;

6 is a view showing an example of a pattern for trial running a truck;

7 is a view showing an example of the temperature of the journal bearing of the bogie driven by the pattern shown in FIG.

8 is a view for explaining another embodiment of the balance driving test apparatus according to the present invention,

9 is a cross-sectional view according to another embodiment of the balance driving test apparatus according to the present invention;

FIG. 10 is a diagram illustrating an example in which a pair of tracks constituting a track drives a first exciter and a second vibrator in an environment in which a pair of tracks are vertically curved with respect to a horizontal plane;

11 is a diagram illustrating an example of driving a third exciter in an environment in which an orbit is curved horizontally with respect to a horizontal plane;

FIG. 12 is a view showing an example in which one of the tracks drives the first or second exciter in an environment where the elevation of the installation surface is higher or lower than that of the other tracks, and

FIG. 13 is a diagram illustrating an example of driving a fourth exciter in an environment in which a distance between lines is changed.

* Description of the symbols for the main parts of the drawings *

100: bogie 110: load excitation

120: Grand Garage Government 201, 202, 501, 502

221: temperature detection unit 222: load detection unit

510 frame 520 excitation

The present invention relates to a bogie driving test apparatus and a bogie testing system using the same, in particular, the bogie is tested in advance of the manufacture, installation, and trial run of the bogie by running the bogie in a situation similar to the actual situation, and grasping a problem that occurs in advance. The present invention relates to a bogie test device and a bogie test system.

The bogie refers to a driving device for supporting a railroad car on a track and moving the car on a predetermined track. In general, a trolley supports one vehicle, and one of a single shaft, two shafts, and three shafts is used.

Here, one axis means a trolley for connecting a pair of wheels, and two axes mean a trolley having four wheels and three axes six wheels. Since the trolley supports a vehicle for storing lives and cargoes, it is usually loaded with tens to hundreds of tons, so high stability and tests for this are required.

1 shows an outline of a bogie for supporting and driving a vehicle.

The illustrated bogie is a two-axis system, which includes the axle 106, the wheels 104a to 104d, the vehicle supports 101 and 102 that are subjected to the load of the vehicle, the vehicle supports 101 and 102, and the frame 103 to support the wheels. And a journal bearing 105 provided between the wheels 104a to 104d and the axle 106 supporting it.

Bogies constructed in this way should be tested directly on track or visually after completion of manufacture. At this time, in the case of the journal bearing 105 provided between the axle 106 and the wheels 104a to 104b, it is difficult to easily inspect by visual inspection or a test performed on the track, and the inspection result is performed when the bogie is stopped. It becomes hard to trust.

For example, in the conventional inspection method, the temperature of the journal bearing 105 cannot be obtained when the truck is traveling at a high speed (100 km), and it is difficult to obtain accurate information about the running condition of the truck, vibration of the truck, and the like. The observed and recorded information has a problem that it is difficult to maintain objectivity.

The present invention has been made to solve the above-mentioned conventional problems, an object of the present invention is to drive the truck in an environment similar to the actual driving state, and to obtain the information for determining the state of the driven vehicle can be objectiveized The present invention provides a vehicle driving test apparatus and a vehicle testing system using the same.

According to the present invention, the test driving device for a vehicle for driving a vehicle, the hydraulic vibration unit for applying a load corresponding to the vehicle to the vehicle, a drive source whose speed is variable according to a predetermined pattern and A bogie wheel for driving the wheel provided on the bogie, the speed of the track lubrication being varied by the pattern, and the bogie drive unit driving the wheel receiving the load by the variable speed; Is achieved by a temperature sensing unit that detects the temperature of the wheel that rotates.

Preferably, further comprises a balance fixing portion for fixing the balance.

Preferably, a torque measuring device is provided between the driving source and the wheel and measures the torque applied to the track wheel.

It is preferable that the said temperature sensing part measures the temperature of the bearing integrated in the said wheel.                     

Here, it is preferable that the said temperature sensing part is a non-contact type.

Preferably, the apparatus further includes a load detection unit mounted and detached between the hydraulic vibration unit and the trolley, for measuring a load applied from the hydraulic vibration unit to the trolley.

Preferably, further comprising a surveillance camera for monitoring the driving state of the wheel and the state of the truck.

Preferably, further comprising a track of a predetermined length for moving the bogie, the bogie is moved to a predetermined position through the track.

According to the present invention, the above object is provided with a driving device for rotating the wheel provided in the trolley for driving the vehicle, the wheel driven by the drive device and at least any one side of the body constituting the trolley A balance driving unit having a sensor, and a data processing unit for varying a speed according to a predetermined pattern and recording drive information of the balance corresponding to the variable speed in predetermined time units to generate analysis data about the balance. Is achieved by.

Preferably, further comprising a surveillance camera for monitoring the driving state of the wheel and the state of the truck.

The data processor may include an interface unit configured to receive data according to an interface type with the sensor, an image data processor configured to convert image information received from the surveillance camera into a video signal having a predetermined format, and the driving information from the interface unit. It is preferable to include an analog-to-digital converter for receiving and analog-to-digital conversion.

The interface is a serial interface, I ² C, it CAN is preferred, and any one of a USB interface.

The data processor includes a storage medium storing the driving information and the video signal.

The driving information may be at least one of torque of the wheel, rotation speed of the wheel, temperature of a bearing provided between the wheel and the axle supporting the wheel, load applied to the bogie, and torque applied to the wheel. desirable.

The trolley driver includes a track wheel for driving the wheel, and the track wheel is preferably driven by a drive source whose speed varies according to a predetermined pattern.

Preferably, the apparatus further includes a hydraulic vibration generating unit for applying a load corresponding to the vehicle to the bogie.

Preferably, the apparatus further includes a non-contact temperature sensing unit for detecting a temperature of the wheel that rotates by the raceway lubrication.

Preferably, a torque measuring device is provided between the driving source and the wheel and measures the torque applied to the track wheel.

Preferably, the apparatus further includes a load detection unit mounted and detached between the hydraulic vibration unit and the trolley to measure the load applied from the hydraulic vibration unit to the trolley.

Preferably, the track further includes a track having a predetermined length for moving the bogie, wherein the bogie is moved to a predetermined position through the track to test and is configured to discharge the bogie that has been tested.

According to the present invention, in the test driving apparatus for a bogie for driving a vehicle, the above object includes a drive source whose drive speed is variable according to a predetermined pattern and a raceway wheel for driving a wheel provided in the bogie, The speed of the track lubrication is varied by the pattern, and the bogie drive unit which drives the wheels by the variable speed, the frame in which the track lubrication is rotatably installed, and the frame have the environment in which the wheel of the bogie is driven on the actual track. An excitation part to simulate; And a temperature sensing unit detecting a temperature of the wheel rotating by the track lubrication, wherein the excitation unit is driven according to a test pattern in which the wheel is excited when the wheel of the bogie is driven on an actual track. Achieved by a test apparatus.

The excitation unit may include a first exciter having a frame corresponding to one line in a track composed of a pair of tracks in a direction perpendicular to a horizontal plane, and the frame at a position corresponding to the other side track with a horizontal plane. It is preferable to include the 2nd excitation group which excites in a perpendicular direction.

In addition, it is preferable to further include a third excitation having a side of the frame.

The excitation unit is configured to simulate the state in which the wheels of the trolley are excited under the first environment with respect to a first environment in which the line is bent in a direction perpendicular to the horizontal plane. It is preferable to drive the two-exciter.

The excitation unit drives the third excitation unit according to the test pattern to simulate a state in which the wheel of the vehicle is excited under the second environment with respect to a second environment in which the line is bent in a horizontal direction with a horizontal plane. It is preferable.

The excitation unit drives the first excitation unit or the second excitation unit so as to simulate a state in which the wheels of the trolley are excited under the third environment with respect to a third environment in which the height of each mounting surface of the pair of tracks is different. It is desirable to.

In addition, it is preferable to further include a fourth exciter for pressurizing the raceway lubrication to simulate a state in which the wheels of the bogie are excited under the fourth environment with respect to a fourth environment in which the distance between the pair of tracks is changed. Do.

Preferably, further comprises a balance fixing portion for fixing the balance.

Preferably, a torque measuring device is provided between the driving source and the wheel and measures the torque applied to the track wheel.

It is preferable that the said temperature sensing part measures the temperature of the bearing integrated in the said wheel.

It is preferable that the said temperature sensing part is a non-contact type.

Preferably, the apparatus further includes a load excitation unit for applying a load to the trolley, and is mounted and detached between the load excitation unit and the trolley, and a load detection unit for measuring the load applied from the load excitation unit to the trolley. It includes more.

Preferably, further comprising a surveillance camera for monitoring the driving state of the wheel and the state of the truck.

Preferably, further comprising a track of a predetermined length for moving the bogie, the bogie is moved to a predetermined position through the track.

Hereinafter, the present invention will be described in detail with reference to FIG. 1.

Figure 2 shows a cross-sectional view according to an example of the balance running test apparatus according to the present invention.

The illustrated bogie running test apparatus accommodates the bogie 100, and the track wheels 201 and 202 disposed to face the wheels 104a to 104b provided on the bogie 100 and the bogie 100 are preset positions. When it is accommodated in the load carrying unit 110 for applying a predetermined load to the balance 100, the balance 100 is fixed to prevent movement of the balance 100 when the balance 100 is stored in a predetermined position, the balance ( It is provided between the 100 and the load excitation section 110, the load detection unit 222 for measuring the load applied to the bogie 100, and when the bogie 100 is rotated by the track lugs 201, 202, A non-contact temperature sensing unit 221 for sensing the temperature of the journal bearing 105 of the trolley 100 is provided.

When the bogie 100 enters the A direction, the bogie 100 moves in the F direction to allow the bogie 100 to enter, and the wheels 104a to 104d and the track wheel 201 provided in the bogie 100. When 202 is opposed, the motor moves in the E direction to prevent an accident due to the departure of the trolley 100. The bogie 100 that has been tested is discharged in the B direction, and the bogie fixing part 120 may be provided in the B direction to prevent an accident caused by the bogie 100.

Although not shown in the drawing, the raceway wheels 201 and 202 are driven by a drive source of an electric or diesel type. The track wheels 201 and 202 directly contact the wheels 104a to 104d of the trolley 100, and transmit driving force by the driving source to the wheels 104a to 104d.

Accordingly, the wheels 104a to 104d are rotated by the driving force transmitted from the track wheels 201 and 202, and the wheels 104a to 104d of the bogie 100 are rotated by the track wheels 201 and 202. It can be rotated up to a maximum speed that can be rotated. As a result, the wheels 104a to 104d of the trolley 100 can obtain the same effect as moving at actual speed without performing a direct test drive on the actual track.

When the wheels 104a to 104d are rotated at a predetermined speed (for example, 100 km / h) by the track wheels 201 and 202, the journal bearing 105 provided between the wheels 104a to 104d and the axle 106 is The temperature rises due to the friction between the wheels 104a to 104d and the axle 106.

At this time, since only the wheels 104a to 104d are rotating at a high speed in the fixed state, the temperature of the journal bearing 105 is focused by focusing the non-contact temperature sensing unit 221 on the journal bearing 105. Can be easily measured. The load excitation unit 110 is driven in the C and D directions by hydraulic pressure, and when driven in the C direction, a predetermined load is applied to the trolley 100.

At this time, the load applied to the trolley 100 by the load excitation unit 110 is preferably the same as the load of the vehicle to be supported by the trolley 100. This is required in order to accurately measure the temperature generated in the journal bearing 105 when driving the bogie 100 under actual conditions because the bogie 100 is driven in a state in which the bogie 100 is driven in combination with an actual vehicle. do.

In addition, it is preferable that a load detection unit 222 is provided between the load excitation unit 110 and the trolley 100 in order to apply an accurate load to the trolley 100 with the load excitation unit 110.

On the other hand, a torque detector (not shown) may be further provided between the driving source (not shown) and the raceway wheel to precisely measure the bogie 100. The torque detector is provided between the rotational axis of the drive source and the axles of the tracked wheels 201 and 202 to measure the torque received by the tracked wheels 201 and 202 when the drive source rotates.

In addition, when the wheels 104a to 104d of the trolley 100 rotated by the track wheels 201 and 202 rotate at a predetermined speed (for example, 100 km / h), the vibration state of the trolley 100 and the trolley 100 Surveillance cameras (not shown) for monitoring the presence or absence of abnormalities, such as the balance frame 103 may further comprise.

The monitoring camera is in a state of the wheels 104a to 104d driven by the track wheels 201 and 202, a state of the bogie frame 103 by the rotation of the wheels 104a to 104d, and a state of the support bases 101 and 102. Watch etc.

To this end, the surveillance camera should have at least a 400,000 pixel CCD (Charge Coupled Device), preferably, a storage medium for storing the captured image.

For this purpose, the surveillance camera may be a camcorder capable of transmitting the captured image to a device such as a computer, a notebook computer, and a PDA. In addition, the surveillance camera may be provided with an NTSC or PAL encoder for recording the captured image on a video tape, or may be converted into MPEG format for storage in an analog storage medium (for example, a video tape).

At this time, the surveillance camera is preferably equipped with a zoom (zoom) function to monitor the state of the cart 100 from a distance.

In the balance driving test apparatus, the track wheels 201 and 202 and a driving source for driving the balance wheels are preferably disposed below the surface G. The track 100 for moving the trolley 100 from the A direction to the B direction is installed on the surface G, and the track wheel 201 receives the load of the trolley 100 and the load by the load excitation unit 110 ( It is due to the fact that 202 is installed below the indicator G for the safety of the inspector testing the bogie 100.

Figure 3 shows an example of the balance test system using the balance driving test apparatus shown in FIG.

The illustrated bogie test system includes a bogie driving test apparatus including a drive source driver 230 and a hydraulic control unit 240, a data collecting unit 310, and a data processing unit 300, and the bogie driving test apparatus includes a roller. A motor 231, a speed detector 232, a torque measuring instrument 233, a temperature detector 221, a load detector 222, and a monitoring camera 223 are provided.

The driving source driver 230 converts commercial power into three-phase power or direct current and provides the roller motor 231, and is controlled by a pattern provided in the data processor 300 to control the roller motor 231 at low speed, medium speed, and high speed. To drive.

In the figure, an electric roller motor 231 is shown as a driving source for driving the raceway wheels 201 and 202. In addition, a motor driven by a diesel driving source or a gasoline driving source may be used.

The speed detector 232 detects the speeds of the track wheels 201 and 202 rotated by the roller motor 231 or the wheels 104a to 104d driven by the track wheels 201 and 202 and detects and detects the speed. Speed is provided to the data collector 310.

The torque meter 233 measures the torque applied between the roller motor 231 and the raceway wheels 201 and 202. Torque measuring device 233 is preferably configured to rotate between the rotating shaft of the roller motor 231 and the raceway wheels 201, 202 to rotate together with the rotating shaft of the roller motor 231, the measured torque is a data collector ( 310).

The temperature detector 221 detects a temperature of the journal bearing 105 provided between the wheels 104a to 104d of the trolley 100 and the axle 106 and provides the temperature to the data collector 310. The temperature sensing unit 221 emits infrared rays to the journal bearing 105, and after sensing the infrared rays reflected from the journal bearing 105, it is preferably an infrared thermometer measuring the temperature by converting them into a digital signal.

The surveillance camera 223 is installed to be spaced apart from the trolley 100 by a predetermined distance (for example, 1 m) or more, and when the wheels 104a to 104d of the trolley 100 rotate, the driving state of the trolley 100 is imaged and the data is recorded. Provided to the collection unit 310.

The load detection unit 222 measures a load applied to the trolley 100 by the load excitation unit 110 driven by the hydraulic control unit 240 and provides it to the data collection unit 310. At this time, the load detection unit 222 is provided between the load excitation unit 110 and the trolley 100 to measure the load to accurately measure the load applied to the trolley 100.

The hydraulic controller 240 is controlled by the data processor 300 to allow the load excitation unit 110 to apply a predetermined load (eg, a load corresponding to the vehicle to be mounted on the vehicle) to the trolley 100. The data collector 310 receives the temperature, speed, torque, load, and image information captured by the surveillance camera 223, and converts the analog information to digital data to provide the data to the data processor 300.

In this case, the data collection unit 310 may further include an image board for converting the image information provided from the surveillance camera 223 into a predetermined format (for example, NTSC / PAL, MPEG, etc.). The data processor 300 receives driving information (eg, temperature, speed, torque, load, etc.) of the balance output from the data collector 310 and stores the received driving information in a predetermined time unit (eg, 1s).

Accordingly, the inspector inspecting the balance 100 can determine whether the balance 100 is good or not based on the driving information that is changed and stored with time.

4 illustrates an embodiment of the data collector 310 and the data processor illustrated in FIG. 3.

In the drawing, the data processor 300 is implemented by a host computer, and the data collector 310 has a form embedded in the host computer 300. As shown, the data collection unit 310 is mounted in a slot provided on the main board in the host computer 300, the temperature sensing unit 221, the load detection unit 222, the drive source driver 230 , And an A / D (Analog to Digital convert) board for analog-to-digital driving information generated by the hydraulic controller 240 and an image for storing the image information output from the surveillance camera 223 in the host computer 300. It consists of boards.

The video board is MPEG, AVI, DIVX, and Microsoft's media playback standards WM, WMX, which are easy to store in a storage medium provided in the host computer 300, such as a hard disk drive (HDD). By converting it into a format of any one of WMP and WMV, and recording it in a storage medium such as a hard disk drive, the image captured by the surveillance camera 223 can be stored and reproduced if necessary. Meanwhile, the balance test system according to the present exemplary embodiment may be connected to a printer 400 connected to a network to print driving information stored in a predetermined time unit in the data processing unit 300.

The printer 400 makes it easy to recognize the test results of the bogie 100 by printing the driving information in the form of a graph, and compares the printed matter generated each time the test run on the bogie is performed, the state of the bogie 100, For example, it is possible to generate evidence that can easily determine whether the degradation of each component constituting the balance (100).

FIG. 5 illustrates another embodiment of the data collector 310 and the data processor 300 shown in FIG. 3.

The illustrated embodiment shows that the data collector 310 and the data processor 300 are implemented as a single device by using an embedded device. Unlike the general-purpose main board mounted on the host computer 300, such a device is implemented to process only the driving information measured from the trolley 100 and is implemented through an industrial main board designed and produced for a specific purpose. Can be.                     

As shown, a hard disk having an Accelerated Graphics Port (AGP) 305 for interfacing with a display device (e.g., a monitor, LCD, etc.), a processor, application information (APP) for processing drive information, and image information. An external interface terminal (I / F) 301 that receives a drive (HDD) 304, RAM, drive information, and image information provided from the surveillance camera 223, and a drive provided from the external interface terminal 301. And a data collecting unit 310 for converting the information and the image information into analog and digital information.

The external interface terminal (I / F) 301 is driven by a serial interface such as a controller area network (CAN), an inter-integrated circuit (I ² C), and a universal serial bus (USB). Wiring with various sensors for detecting drive information can be simplified. The external interface terminal (I / F) 301 may be connected with various sensors through two or new wires.

Of course, instead of the above-mentioned external interface terminal (I / F) 301, it is also possible to use a serial port such as 9 pin, 25 pin, or use an IEEE1394 interface, and to detect temperature, load, torque, speed, and hydraulic information. It can also be wired directly without using a separate interface to the sensor.

The serial interface shown in the figures is merely an embodiment of one of various connection schemes that can be implemented by the present invention, and the present invention should not be limited by the figures and the descriptions appended thereto.

The data collector 310 may be implemented as a separate logic on an industrial motherboard or may be implemented in a form of attaching and detaching to a socket (for example, a PCI socket) provided in an industrial motherboard.

The data collector 310 has the same protocol as the analog-to-digital converter (A / D) and the external interface terminal (I / F) 301 for converting the driving information into a digital signal, and the external interface terminal (I / F) the interface unit (I / F) for receiving the driving information and the image information provided from 301, and when the image information is provided from the interface unit (I / F), it is provided in a predetermined format (eg MPEG, AVI, DIVX). And a video data processing unit for converting to any one of Microsoft's media playback standards (WM, WMX, WMP, WMV).

When the data collector 310 and the data processor 300 are implemented on such an industrial main board, the manufacturing cost is lower than that of the host computer 300, and the hardware required to test the balance 100 is reduced. Since only and software are used, the overall size is reduced.

In addition, as the hardware and software decreases, the probability of collision between hardware and software decreases, and consequently, the stability of the system for testing the balance 100 increases.

The hard disk drive (HDD) 304 is driven by an operating system for operating the industrial motherboard, an operating system, a pattern for testing the bogie 100, and drives the bogie 100 according to the pattern, thereby. An application program (APP) for graphing the generated driving information in a predetermined time unit (for example, 1 s) is stored.                     

The processor may use any one of a low power, low heat ARM series, Intel series, and VIA series processors, and may drive information and image information according to an application (APP) stored in a hard disk drive (HDD) 304. The process is then displayed on a display device (not shown) through the AGP 305, and the processed result is stored in the hard disk drive (HDD) 304 again.

The RAM 306 provides a temporary storage space required when a processor processes driving information or when the image data processing unit converts the image information into a predetermined format.

6 shows an example of a pattern for trial driving the truck 100.

The illustrated pattern is set to low speed in one section, medium speed in two sections, and high speed in three sections, and the maximum speed is set to 300 km / h. By rotating the wheels 104a to 104d of the trolley 100 by such a pattern, it is possible to bring the trolley 100 closer to the situation generated during actual driving.

For example, an electric train or a truck 100 for transporting a wagon can move at various speeds, so that the test of the truck can be performed more reliably through a pattern close to the situation in which the truck 100 is moved along an actual track. Make sure

In this case, the pattern is preferably stored in a storage medium such as a hard disk drive (HDD) 304, the application program (APP) by referring to the pattern stored in the hard disk drive (HDD) (304) It is programmed to rotate 202.

FIG. 7 shows an example of the temperature of the journal bearing of the bogie 100 driven by the pattern shown in FIG. 6.                     

The illustrated figure shows the temperature rising per hour as a result printed on the paper by the network printer 400. As shown, the rate of change of temperature varies according to the speed according to the load and pattern applied to the trolley 100, and determines whether the changed temperature is a temperature within a preset range for the trolley 100 to the trolley 100. It is possible to determine whether the journal bearing 105 is provided.

At this time, since the wheels 104a to 104d provided in the bogie 100 are driven at a speed of 100 km / h or more under the same load as the vehicle, the temperature of the journal bearing 105 to be measured is actually used by the bogie 100. It is almost identical to that measured in the environment.

8 is a view for explaining another embodiment of the balance driving test apparatus according to the present invention, Figure 9 shows a cross-sectional view according to another embodiment of the balance driving test apparatus according to the present invention.

The trolley driving test apparatus shown in the drawing is similar to the trolley driving test apparatus shown in FIG. 2, except that the trolley for testing the trolley in an actual track environment, for example, an environment having a warp, curvature and uneven height of the track. It relates to a driving test apparatus, and the same applies to the system illustrated and illustrated in FIGS. 3 to 7, and thus descriptions overlapping with those of FIGS. 2 to 7 will be omitted.

In the drawing, reference numeral 10 denotes the actual track on which the bogie should travel. The track consists of two tracks 10a and 10b, where the heights of the two tracks are the same and parallel are most ideal, but the actual track does not always meet this condition.

For example, the elevations of the mounting surfaces of the two tracks 10a and 10b constituting the track 10 are different, that is, a cant phenomenon occurs, or the track 10 is bent horizontally or vertically with respect to the horizontal line. In many cases, the distance between the two tracks in a particular section is changed, and the wheel spacing of the truck is automatically changed accordingly.

Accordingly, the trolley travel test apparatus according to the present embodiment includes track wheels 501 and 502 for rotating the wheels 104a to 104b provided in the wheel 100 shown in FIG. A driving source 531 for rotating and driving the 502, an orbital wheel frame 510 in which the orbital wheels 501 and 502 are rotatably installed, and an excitation part 520 having the orbital wheel frame 510. Include.

Since the configuration and operation of the track wheels 501 and 502, the driving source 531, and the wheels 104a to 104b are the same as those of the embodiment shown in FIGS. 1 to 7, detailed description thereof will be omitted.

The track wheel frame 510 is a track wheel 501, 502 is rotatably installed, the excitation by the excitation section 520 to be described later and accordingly the track wheel 501 (502) by the excitation Enable to simulate rail status.

The excitation unit 520 includes a plurality of first to fourth excitation units 521, 523, 525, and 527, and a force applied to each excitation unit 521, 523, 525, and 527. By differently having the track wheel frame 510 to test the bogie 100 in the environment most similar to the actual situation.

The first and second vibrators 521 and 523 are provided to vibrate in the up and down direction with respect to the raceway frame 510, and the third exciter 525 is based on the surface of the raceway frame 510. Is provided to excite in the left and right directions, and a fourth exciter 527 is provided to press the raceways 501 and 502 to vary the interval between the raceways 501 and 502.                     

FIG. 10 illustrates driving of the first and second exciters 521 and 523 in an environment in which the pair of tracks 10a and 10b constituting the track 10 are bent vertically with respect to the horizontal plane. An example is shown.

In order to simulate the situation for driving the bogie 100 on a poor track 10a, 10b in which the two tracks 10a and 10b are not mutually symmetric and are vertically curved with respect to the horizontal plane, The orbital wheels 501 and 502 should be excited up and down corresponding to the heights of the tracks 10a and 10b.

In the drawing, assuming that the lines corresponding to the first and second excitation 521 and 522 are 10a and 10b, respectively, the first and second excitation 521 and 522 are respectively According to the curvature of the track (10a) (10b) of the pressing force applied to the track frame 510 should be variable.

At this time, the pressing force applied to the frame 510 is preferably applied according to the test pattern according to the result measured in advance in the actual situation. That is, the test pattern is data about a state in which the wheels 104a to 104d of the bogie 100 are excited when the bogie 100 drives the tracks 10a and 10b, and the first exciter 521 and the second The exciter 525 adds or subtracts the pressing force applied to the raceway frame 510 by such data.

FIG. 11 illustrates an example of driving the third exciter 525 in an environment in which the track 10 is bent horizontally with respect to the horizontal plane.

As shown, when the trolley 100 moves the curved track 10 to the left and right relative to the ground surface, the wheels 104a to 104b are excited by the curved rails 10a and 10b. In order to simulate the third exciter 525, the track wheel frame 510 is excited left and right, and as a result, the track wheels 501 and 502 are excited as a result of which the wheels 104a to 104b are excited. Driving on the true rails 10a and 10b is simulated.

FIG. 12 shows an example in which one of the tracks drives the first or second exciter 521 or 523 in an environment where the elevation of the mounting surface is higher or lower than that of the other tracks.

As shown, when the track 10 is curved, the outside of the track radius has a higher height than the inside to prevent the bogie 100 from derailing in the track.

In FIG. 8, it is assumed that the outside of the path radius corresponds to the line 10a and the inside of the path radius corresponds to the line 10b. When the rule of thumb has such a structure, assuming that the track lubrication corresponding to the track 10a is the track lubrication 501, the track lubrication frame 510 is driven when only the first exciter 521 is driven to press the track rim frame 510. ) Is inclined and thus the orbital wheels 501 and 502 are inclined to simulate the actual track.

FIG. 13 shows that the fourth exciter 527 is between the raceway 501 and 502 in an environment in which the track 10a or the track 10b overlaps or crosses other tracks, or in an environment in which the distance between the tracks becomes narrow or wide. An example of pressing the track wheels 501 and 502 to widen or narrow the gap is shown. As shown, the fourth exciter 527 has a raceway 501 and 502 to simulate an environment similar to the environment in which the bogie 100 travels at the point where the width of the track changes.

After driving of the bogie according to the environment implemented in FIGS. 8 to 13, the temperature of the journal bearing 105 of the bogie 100 is measured or the wheels 104a-104d as described above with reference to FIGS. 2 to 7. Or the torque of the track wheels 501 and 502, the state of the bogie frame 103 constituting the bogie 100, and the like can be tested and observed. The state of the balance 100 can be measured by applying.

As described above, the present invention increases the reliability of the test of the vehicle by applying the same load as the actual vehicle to the vehicle to be tested and testing the vehicle at the various speeds at which the vehicle is driven. Let's do it.

In addition, the present invention facilitates the analysis of the balance by storing the drive information obtained from the balance in a predetermined time unit when the balance is tested, allowing the balance to run in the same environment as the actual, and imaging and storing the image information about the balance As a result, it is possible to pursue high reliability compared to the conventional simple visual observation or the test performed in the stationary state. Accordingly, the balance driving test apparatus and the test system using the same of the present invention can be applied at the time of manufacturing, testing, and maintenance of the balance.

Claims (34)

In the traveling test apparatus of a bogie for driving a vehicle, A load excitation unit for applying a load corresponding to the vehicle to the trolley; A drive source whose drive speed is variable according to a predetermined pattern and a track wheel for driving wheels provided in the trolley, the speed of the track wheel being varied by the pattern, and receiving the load by the variable speed. A trolley driver for driving the wheels; And And a temperature sensing unit detecting a temperature of the wheel rotated by the track wheel. The method of claim 1, Balance driving test apparatus further comprises; a bogie fixing portion for fixing the bogie. The method of claim 1, And a torque measuring device provided between the driving source and the wheel, the torque measuring device measuring torque applied to the track lubrication wheel. The method of claim 1, The temperature sensing unit, Balance driving test apparatus, characterized in that for measuring the temperature of the bearing embedded in the wheel. The method of claim 4, wherein The temperature sensing unit, Balance driving test apparatus, characterized in that the contactless. The method of claim 1, And a load detection unit mounted and detached between the load excitation unit and the bogie, for detecting a load applied from the load excitation unit to the bogie. The method of claim 1, And a surveillance camera for monitoring the driving state of the wheel and the state of the trolley. The method of claim 1, And a track having a predetermined length for moving the cart, wherein the cart is moved to a predetermined position through the track. A trolley driving test apparatus having a driving device for rotating a wheel provided in a trolley for driving a vehicle, the trolley driving test apparatus having a sensor for at least one side of a wheel driven by the driving apparatus and a body constituting the trolley; And And a data processor configured to vary the speed according to a predetermined pattern of the wheels and to generate driving data of the cart by recording driving information corresponding to the variable speed in predetermined time units. Bogie Test System. The method of claim 9, And a surveillance camera for monitoring the driving state of the wheel and the state of the trolley. The method of claim 10, The data processing unit, An interface unit for receiving data according to an interface type with the sensor; An image data processor converting the image information received from the surveillance camera into a video signal of a predetermined format; And And an analog-to-digital conversion unit for receiving the driving information from the interface unit and converting it to analog-digital devices. The method of claim 11, The interface is, A bogie test system, characterized in that the serial interface, any one of I ² C, CAN, and USB interface. The method of claim 11, The data processing unit, And a storage medium storing the driving information and the video signal. The method of claim 9, The drive information, And at least one of a torque of the wheel, a rotation speed of the wheel, a temperature of a bearing provided between the wheel and the axle supporting the wheel, a load applied to the bogie, and a torque applied to the wheel. Test system. The method of claim 9, The trolley driving test apparatus, And a track wheel for driving the wheels, wherein the track wheel is driven by a drive source whose drive speed is variable according to a predetermined pattern. The method of claim 15, And a load excitation unit for applying a load corresponding to the vehicle to the vehicle. The method of claim 16, And a non-contact temperature sensing unit for detecting a temperature of the wheel that rotates by the track lubrication. The method of claim 17, And a torque measuring device provided between the driving source and the wheel and measuring torque applied to the track wheel. The method of claim 18, And a load detection unit mounted and detached between the load excitation unit and the bogie, for detecting a load applied from the load excitation unit to the bogie. The method of claim 19, And a track having a predetermined length for moving the bogie, wherein the bogie is moved and tested to a predetermined position through the trajectory, and the bogie running test system, characterized in that configured to discharge the bogie completed with the bogie. In the test driving device of the bogie for driving a vehicle, A drive source whose drive speed is variable according to a predetermined pattern and a track wheel for driving the wheels provided in the bogie, the speed of the track wheel is varied by the pattern, and the wheel is driven by the variable speed. Balance driving unit; An exciting part having the frame rotatably installed and the frame having the frame to simulate an environment in which a wheel of a trolley is driven on an actual track; And And a temperature sensing unit for detecting a temperature of the wheel rotated by the raceway wheel. And the excitation unit is driven according to a test pattern in which the wheels are excited when the wheels of the bogie are driven on an actual track. The method of claim 21, The exciting part, A first exciter having said frame at a position corresponding to one line in a track composed of a pair of tracks in a direction perpendicular to a horizontal plane; And And a second exciter having the frame at a position corresponding to the other side of the frame in a direction perpendicular to a horizontal plane. The method of claim 22, And a third exciter having a side surface of the frame. The method of claim 22 or 23, The exciting part, Driving the first and second exciters in accordance with the test pattern to simulate a state in which the wheels of the bogie are excited under the first environment with respect to a first environment in which the line is bent in a direction perpendicular to the horizontal plane. Balance driving test apparatus, characterized in that. The method of claim 22 or 23, The exciting part, And driving the third exciter in accordance with the test pattern to simulate a state in which the wheels of the bogie are excited under the second environment with respect to a second environment in which the line is curved in a horizontal direction and in a horizontal direction. Bogie test device. The method of claim 22 or 23, The exciting part, And driving the first or second exciter to simulate a state in which the wheels of the trolley are excited under the third environment with respect to a third environment in which the elevation angles of the pairs of mounting surfaces of the pair are different. Balance driving test device. The method of claim 22 or 23, And a fourth exciter for pressurizing the track lubrication to simulate a state in which the wheels of the bogie are excited under the fourth environment with respect to a fourth environment in which the distance between the pair of tracks is changed. Balance driving test apparatus. The method of claim 21, Balance driving test apparatus further comprises; a bogie fixing portion for fixing the bogie. The method of claim 21, And a torque measuring device provided between the driving source and the wheel, the torque measuring device measuring torque applied to the track lubrication wheel. The method of claim 21, The temperature sensing unit, Balance driving test apparatus, characterized in that for measuring the temperature of the bearing embedded in the wheel. The method of claim 29, The temperature sensing unit, Balance driving test apparatus, characterized in that the contactless. The method of claim 21, Further comprising a load excitation portion for applying a load to the bogie, And a load detection unit mounted and detached between the load excitation unit and the trolley, and configured to measure a load applied to the trolley from the load excitation unit. The method of claim 21, And a surveillance camera for monitoring the driving state of the wheel and the state of the trolley. The method of claim 21, And a track having a predetermined length for moving the cart, wherein the cart is moved to a predetermined position through the track.

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