KR20070008887A - Apparatus for measuring vehicle wheel weight - Google Patents

Abstract

An apparatus for measuring a vehicle wheel weight is provided to maintain proper weight rate for a vehicle by displaying a weight rate for the vehicle to maintain. In an apparatus for measuring a vehicle wheel weight, a plurality of tilt gauges(1~16) is installed on an inner rail(20) and an outer rail to measure weight of each vehicle. A transferring part sends a weight data measured from each tilt gauge. And, a data process device(60) judges whether the weight rate is proper or not after a sent weight data is compared to set standard weight rate.

Description

Vehicle gravity measuring device {APPARATUS FOR MEASURING VEHICLE WHEEL WEIGHT}

1 is a cross-sectional view schematically showing the direction of the force exerted by the wheels and wheels of a typical railway vehicle.

Figure 2 is a block diagram showing the configuration of the vehicle wheel measuring apparatus according to the present invention.

Figure 3 is a front view showing a state in which the tilt gauge is installed on the line according to Figure 2 of the present invention.

Figure 4 is a circuit diagram showing a connection state of the tilt gauge installed on the inner rail in accordance with an embodiment of the present invention.

Figure 5 is an embodiment of a graph for showing the wheel ratio in the data processing apparatus according to an embodiment of the present invention.

<Brief description of symbols for the main parts of the drawings>

Tilt gauge: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16:

20: inner rail 30: outer rail

40: RF receiving antenna 50: bridge box

60: data processing device

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vehicle weight ratio measuring apparatus. More particularly, the present invention relates to a vehicle weight ratio measuring apparatus for measuring a vehicle tilt ratio using a measured value.

In general, railway accidents are most dangerous due to collisions and derailments. However, a collision accident may be said to have no collision accident such as a railway due to an error of the control system so that there is little risk of the accident due to the development of the control system.

However, the derailment of the train on the Hibiya Line on March 18, 2000 was a painful accident that was recorded in Japan's railway history, where five people died and 63 were injured. The result of the accident was a collision, but before that train derailment occurred, which resulted in a collision.

Since the cause of the accident was analyzed after the accident, it is difficult to know the exact cause of the accident. However, according to the manufacturer's data on the measurement of the wheel speed during manufacture, the stopping wheel weight ratio of the right wheel on the 1st axis of the vehicle is 0.90 and the stopping wheel weight ratio of the wheel on the 4th axis of the wheel is 0.79, which may have been unbalanced diagonally. have.

Moreover, the vehicle was not subjected to measurement and adjustment of the wheel load after use. In addition, after the accident occurred, the maximum unbalance was measured for the vehicle, with the largest unbalance being 0.71. The axle, which is 1.4% of the total, had a large unbalance below 0.80. It is speculated that the vehicle derailed from the above point may have caused the unbalance of the heavy stop wheelwork. According to the field driving test and the measurement result of the operating vehicle, the derailment coefficient of the stationary wheel run was unbalanced, and the less wheel run of the outer wheel was increased. In other words, it is assumed that the unbalence of the wheel's lubrication ratio provided the largest cause of derailment.

The railroad industry is a major industry that takes up a large portion of the transportation, and it is an important industrial field that has a big impact on various other industries in the event of an accident, even the slightest accident. It needs to be used as data.

1 is a cross-sectional view schematically showing the direction of the force of the wheel and the wheel of a typical railway vehicle.

Referring to FIG. 1, the wheel weight ratio refers to the ratio of unbalance wheel weight to average wheel weight on inner and outer wheels. The equation is represented by the following equation (1).

It is preferable that the above-described wheel weight ratio be within 10%. For reference, in the above formula 1, the uppercase S represents multiplication (x) (when X is displayed in the formula, there is an error indicated by the uppercase S).

In addition, in order to prevent such a derailment, it is common to design a track by the Kant method in a curved track | path. In order to have stability during rotation, it was manufactured in this way, but when it is operated at a lower speed than the set kant, P1 representing the inner wheel speed increases sharply, while P2 drops sharply and the wheel speed ratio increases sharply and derails. Will increase the risk.

Thus, there is a need for equipment capable of measuring the wheel run in the middle of a railway or as a test equipment.

Accordingly, the present invention has been made to solve the above-mentioned problems and to meet the above-mentioned necessity, the vehicle is installed on railroad tracks to measure the inclination of the vehicle, and the vehicle is obtained by comparing the inclination value of the vehicle with the reference inclination value. It is an object of the present invention to provide a vehicle wheel ratio measurement device for measuring the wheel ratio.

Another object of the present invention is to periodically measure the wheel speed ratio in order to prevent derailment and the like that may occur when driving the curve at a low speed, and in case of unbalance exceeding a prescribed value, the wheel weight ratio of the vehicle which can correct the unbalance It is to provide a measuring device.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a device for measuring the wheel speed of a vehicle installed on a rail. A transmission unit for transmitting and a data processing device for determining whether the ratio of the leap ratio is appropriate after comparing and processing the interpolation data received in connection with the transmission unit with the preset reference period data.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a block diagram showing the configuration of the vehicle wheel measurement apparatus according to the present invention, Figure 3 is a front view showing a state in which the inclination gauge is installed on the track according to Figure 2 of the present invention.

Referring to FIGS. 2 and 3, between the sleepers and the sleepers, two inclined gauges 1, 2, 3, and 4 are respectively provided on each side of the inner rail 20 of the sleeper, that is, two on the inner and outer sides. do. That is, four tilt gauges (1, 2, 3, 4) of the inner rail 20 are installed and the four tilt gauges (9, 10, 11, 12) are applied to the next sleeper block of the inner rail 20 in the same manner. Install it. That is, all eight inclination gauges 1, 2, 3, 4, 9, 10, 11, and 12 are provided in the inner rail 20. The tilt gauges 1, 2, 3, 4, 9, 10, 11, and 12 measure the amount of shear deformation by the load of the vehicle to generate the amount of deformation information.

In addition, in the outer rail 30, inclination gauges 5, 6, 7, 8 are provided on the inner side and the outer side against the inclination gauges 1, 2, 3, and 4 provided on the inner rail 20. In the next sleeper block of the rail 30, the inclination gauges 13, 14, 15, and 16 are installed against the inclination gauges 9, 10, 11, and 12 installed in the inner rail 20. That is, all eight inclination gauges 5, 6, 7, 8, 13, 14, 15, and 16 are also provided in the outer rail 30, too. In this way, when the eight inclination gauges (1, 2, ..., 15, 16) are provided on the inner rail (20) and the outer rail (30), respectively, the inclination gauge (1, 2, ... ., 15, 16 are different in the degree of deformation and the tilt gauge (1, 2, ..., 15, 16) will be detected. That is, the measuring point becomes four measuring points, and each of the four tilt gauges 1, 2, ..., 15, 16 is provided at each measuring point. The inclination gauges 5, 6, 7, 8, 13, 14, 15, and 16 also measure the amount of shear deformation by the load of the vehicle to generate strain information.

At this time, all 16 inclination gauges (1, 2, ..., 15, 16) are constructed by waterproofing to be durable, such as water and rain from the vehicle itself.

In addition, the line for transmitting the strain information input from the 16 tilt gauges (1, 2, ..., 15, 16), that is, the four measurement points, does not affect the inner rail 20 and the outer rail 30. Lay underground to construct safely from vehicles. The line passes through the bridge box 50 and is connected to the data processing device 60.

In addition, the data processing device 60 is connected to the RF receiving antenna 40 to obtain information about the vehicle. Information about the vehicle has a four-digit unique number for each vehicle or carriage. Information about the unique number is stored in the tag on the side of the front of the vehicle. The unique number information of the vehicle embedded in the tag of the vehicle is received by the RF receiving antenna 40. The RF receiving antenna 40 generates a clock pulse upon receiving the unique number information of the vehicle, and bridges the deformation amount information measured by the gradient gauges 1, 2, ..., 15, 16 between the clock pulse and the clock pulse. Send to box 50. When the clock pulse is generated in the next vehicle again, the deformation amount information measured by the gradient gauges 1, 2,..., 15, 16 is transmitted to the bridge box 50 again. In this case, the RF receiving antenna may receive a signal output from a device such as RFID, or may be replaced with a device capable of receiving information of a receiving antenna and IrDA using a different Bluetooth.

The data processing apparatus 60 receives the deformation amount information corresponding to the vehicle having the unique number and the unique number from the bridge box 50, calculates the weight of the wheel, and displays the unique number of the corresponding vehicle and the corresponding wheel information. Let's do it.

4 is a circuit diagram showing a connection state of the tilt gauge installed on the inner rail according to an embodiment of the present invention.

Referring to FIG. 4, the data processing apparatus 60 displays the shear deformation information measured by the tilt gauges 1, 2, 3, 4, 9, 10, 11, and 12 installed on the inner rail 20. 50) to calculate the load on each wheel, i.e. each wheel weight of the vehicle. The calculated wheel load is expressed as a load according to each time, and when the gap between the wheels facing each other is large, that is, when the wheel gap exceeds 10%, it is regarded as a dangerous state.

FIG. 5 is an embodiment of a graph for indicating a wheel ratio in a data processing apparatus according to an embodiment of the present invention.

Referring to FIG. 5, when four wheels of one axis of a general train are four, and thus, wheels of one train are eight, in FIG. 5, the wheel weight of a train having a total of six trains is measured. It becomes a graph. At this time, when the difference between the overlapping portions represented by white and red is large, the ratio of the wheel load, which is the ratio of the load on the facing wheels, is reduced by linering or the like. That is, the overlapping portion represents the load on the opposing wheels.

The wheel-weighing data measured by the vehicle wheel-weighing measuring apparatus of the present invention can be transmitted and stored and managed in the "vehicle automatic inspection information management system" of Patent No. 0137390 of the same applicant.

The present invention measures the shear deformation amount of a vehicle by installing it on a railroad track, and measures the vehicle wheel ratio using a value obtained by comparing the reference slope value of the vehicle with the corresponding shear deformation value, thereby preliminarily unbalance the wheel weight ratio. There is an effect that can be measured and prevented.

In addition, the present invention has the effect of maintaining the appropriate level in response to the vehicle by displaying the wheel ratio corresponding to the vehicle, so that the corresponding maintenance can be maintained by providing the cause of the accident.

Claims (6)

A plurality of inclination gauges installed on the inner rail and the outer rail and measuring a wheel weight value of each vehicle passing therethrough; A transmission unit which transmits the wheel rotation data measured from each slope gauge; And a data processing device configured to compare the rotational data received by the transmission unit with the preset reference rotational data, and then determine whether the ratio is correct. The method of claim 1, The tilt gauge is, Four inclined gauges (1, 2, 3, and 4) installed between the sleepers and the sleepers, each of which is provided inside and outside of the inner rail 20 of the sleepers to measure the amount of shear strain and generate strain information; Four inclined gauges (9, 10, 11, 12) installed at the next sleeper block of the inner rail (20), each of which is installed at two inner and outer sides to measure the amount of shear strain and generate strain information; An inclination gauge installed on the outer rail 30 and installed on the inner and outer sides with respect to the inclination gauges 1, 2, 3, and 4 installed on the inner rail 20 to measure the amount of shear deformation and generate deformation information. (5, 6, 7, 8); It is installed in the next sleeper block of the outer rail 30, and installed on the inner and outer sides against the slope gauges (9, 10, 11, 12) installed in the inner rail 20 to measure the amount of shear deformation and deformation information Vehicle tilt measurement device, characterized in that consisting of the tilt gauge (13, 14, 15, 16) to generate. The method of claim 1, The transmission unit wirelessly receives the unique number information of the vehicle embedded in the tag of the vehicle and receives any information of the receiving antenna and IrDA using the RF receiving antenna or Bluetooth (Bluetooth) to generate a clock pulse. Vehicle rotation measuring device, characterized in that one. The method of claim 1, The wheel data processing device, A judging unit which compares the rotational data received and connected with the transmission unit with the preset reference rotational data, and determines whether the ratio is correct; A wheel rotation data storage unit for storing various data corresponding to the vehicle specific number and storing and managing the wheel rotation data of each wheel in correspondence with the vehicle and the wheel based on the vehicle number; A display unit connected to the RF receiving antenna 40 to receive unique number information of the vehicle, receive deformation amount information generated in the clock pulses, and indicate wheel rotation data of the vehicle corresponding to the unique number information of the vehicle. Vehicle rotation measuring device, characterized in that. The method of claim 1, The vehicle specific information and the wheel-in-one information corresponding to the vehicle include information on the amount of deformation generated in the clock pulse and the clock pulse generated after the RF receiving antenna 40 receives the unique number information of the vehicle. A vehicle wheel speed measurement apparatus, characterized in that the vehicle is recognized and synchronized with corresponding wheel speed information. The method of claim 1, The lubrication ratio measurement data is transmitted to the existing Republic of Korea Patent Registration No. 037390 vehicle automatic inspection information management system configured to be stored and managed.

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