JPS63286725A - Weight measuring method - Google Patents

Abstract

PURPOSE:To quickly execute the measurement with saving labor and time, by allowing a flange part of a wheel to run on a charge receiving part of a load cell provided on the side part of a running rail. CONSTITUTION:A flange part of a wheel is allowed to run on a charge receiving part 3 of load cells 1a-1d provided on the side part of a running rail 2. As a result, the wheel floats a little from the running rail 2, the wheel load is all applied to the charge receiving part 3 of the load cells 1a-1d, and the output signal of a level corresponding to the wheel load is generated from the load cells 1a-1d. Accordingly, the wheel load of the wheel which has run on its charge receiving part 3 is obtained directly from the output signal of the load cells 1a-1d. Subsequently, when the wheel load is obtained with regard to each wheel in the same way, the axle load and the total weight can be obtained by adding them.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a weight measuring method for measuring the weight of a railway vehicle, such as wheel load, shaft type, total weight, etc. The present invention can also be used to measure the weight of various types of cargo by preparing a truck with a predetermined weight that can load various types of cargo and loading the various types of cargo onto the truck.

[Prior Art] Conventionally, the wheel load, axle type, total weight, etc. of a railway vehicle have been measured by jacking up the measuring part of the railway vehicle and setting a measuring device using a load cell or the like below it.

τProblems to be Solved by the Invention] The above-mentioned conventional method involves jacking up the measuring part of a heavy railway vehicle one by one, setting a measuring device below it, and jacking up the railway vehicle after completing the measurement of the measuring part. Since the measuring device had to be removed and these operations had to be repeated for each measuring part, there was a drawback that it required a considerable amount of time and labor by one person. In addition, there are restrictions on the locations where a railway vehicle can be jacked up, making it impossible to determine accurate wheel loads.

On the other hand, in order to eliminate the above-mentioned drawbacks, a part of the traveling rail is cut to an appropriate length in advance, a load cell is installed below the cut rail, and the railway vehicle is transported on the cut rail. It is also possible.

However, in this case, it is essential to prepare a special running rail for measurement in advance, which has the disadvantage that measurements cannot be taken with the existing running rail and the measurement locations are limited, which is inconvenient. .

The present invention aims to eliminate the above-mentioned drawbacks and provide a weight measurement method that enables rapid measurement without requiring manpower and time, and allows the existing running rail to be used as is, and the measurement location is not limited. .

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention makes the flange part of the wheel ride on the load receiving part of the load cell disposed on the side of the running rail, and calculates the wheel load of the vehicle based on the output signal of the load cell. The type and total weight are obtained.

Note that the term "wheel load" here refers to the load applied to one wheel, and the term "shaft type" refers to the load applied to both wheels.

[For production]

According to the present invention, the load cell (1α) OA) (xc) (xd) is arranged on the side of the traveling rail (2), and the load receiving portion of the load cell (lC) (xb) (IC) (ld) (3) Since the flange portion (5a) of the wheel (5) is placed on top of the wheel (5), the wheel (5) is slightly lifted from the running rail (2), and the total wheel load is reduced to
) (IA) (IC) (ld) 0)? fj T4
Receive! (3), and the load cell (1
α) (lb) (If?) An output signal of a level corresponding to the wheel load is generated from (1d). Therefore, the above load cell (1α) (lh) (lc) (
The wheel load of the wheel (5) mounted on the load receiving portion (3) can be directly obtained from the output signal of xd). Then, if the wheel loads are similarly obtained for each wheel (5), the shaft type and total weight can be obtained by adding them appropriately.

In the present invention, o -
Tocel (1α) (xb) (xc) (lct) When mounting the flange part C5α of the wheel (5) on the load receiving part (3) of the fully installed lever, use the conventional method such as jacking up, etc. Then, simply run the vehicle (8) and stop at the appropriate position, and the flange part (5α) of the wheel (5) guided by the running rail (2) will automatically move to the load cell (1α). (lA) (4c)
It rides on the load receiving part (3) of (ld).

Follow me.

According to the present invention, rapid measurement can be performed without requiring the manpower and time required in the past.

Further, in the present invention, since the load cells (1α) (xb) (lc) (xd) are simply arranged on the side of the running rail (2), the existing running rail (2) can be used as is. There is no need to install a special running rail for measurement, and the measurement location is not limited.

It is economical and convenient.

〔Example〕

The present invention will be described below based on embodiments shown in the drawings.

In the present invention, first, the load cell (IC) (lb) (IC
) (1d) are arranged on the side of the running rail (2). In addition.

The load cell (1C) (1h) (1C) (1d) generates a voltage at a level corresponding to the load applied to its load receiving portion (3).

In the case of the drawing example, the load cell (1α) (xb) (
1c) (1d) are each block (e) (4ir) (4
c) (4d,) and each block (4d,)
α) (4h) (4C) The load receiving portions (3) of each of the load cells (xa), Cxh), (xc), and (ld) are slightly protruded above (d).

In addition, each load cell (LC) (11)) (LC)
The load receiving part (3) of (ld) has an inclined part (3α), and as described later, the load cell (1α) (lh)
(1c) Wheels (5) are placed on the load receiver (3) of C1d, ).
so that when the flange portion (5a) of the flange section (5a) is mounted on, the mounting is carried out smoothly.

It has become. In addition, each of the above blocks (4α) (4h
) (4C] (41i) has each push rod (6) (6
Screw holes (7) into which the ends of α) are screwed are provided respectively.

Then, the screw hole (7) of the block (4α) (4A)
), both ends of the push rod (6α) are screwed together, forming a pair, so that the shaft shapes of the opposing wheels (5) can be measured simultaneously. Similarly, the above block (4C
) (4d), both ends of the push rod C6b) are screwed into the screw holes (7). In addition, each of the above push rods (Hiro) (6b)
Reverse threads are configured at both ends of the push rod (6
When α) or (6b) is rotated to one side, each block (4
α) The distance between blocks (4b) or blocks (4C)C4Il) increases, and when the block is rotated in the other direction, the distance decreases.

Therefore, in the case of the drawing embodiment, each block (4α
) (4b) inside the running rail (2) and rotating the push rod (6α) in one direction, each block (4α) (4b) moves to the running rail (2) as shown in the illustration.
This allows the load cell (lα) (lb) to be placed on the side of the running rail (2).When removing it, turn the push rod (6α) in the opposite direction. In the case of the embodiment shown in the drawings, the blocks (4C) (4d) are also fixed in the same way, and the load cell (xc) (ld) is attached to the side of the running rail (2). The above load cell (la) (
1b), and is mounted on one bogie (9) of the vehicle (8) on the load receiver (3) of each load cell (1α) (IA) (xc) (xcL). The flange portions (5a) of the two wheels (5) ride on the vehicle at the same time. However, load cell (1α)
(lh) alone may be arranged on the side of the traveling rail (2).

In addition, if the vehicle (8) is a freight car etc. that does not have a bogie (9), the freight car has two wheels on each side of the front and rear axles.
Since it is equipped with two wheels (5), the load cell (LA) (IA) and the load cell (IC) (1d
) and the distance between the axles before and after the axle distance C).

In addition, in the case of the drawing example, regardless of whether the running rail (2) is a wide gauge rail or a narrow gauge rail, the push rod (6
) (6b) can be handled by replacing it with one of a different length.

Next, in the present invention, the flange portion (5α) of the wheel (5) is connected to the load cell (112) (xh) (xty) (1cL
) onto the load receiver (3).

Specifically, the vehicle (8) may be driven and stopped at an appropriate position, and the flange portion (5α) of the wheel (5) guided by the traveling rail (2) will automatically move to the load cell (1α). ) (xb) Qc) (Id) load receiving part (3
) It is something that climbs onto the top. In particular, in the case of the drawing example, each load cell (la) (1h) (1c) (ld
) has an inclined portion (3α) in the load receiving portion (3), so that the flange portion (5α) of the wheel (5) can ride smoothly.

In addition, as mentioned above, the flange portion (cfi) of the wheel (5)
As a result, the wheels (5) rise slightly from the running rail (2), and all the weight of each wheel is transferred to the load cell (la) (la) (lA) Cxc) (xd). )(lb)(IC)C1d) is applied to the load receiving part (3)', and the load cell (la)
(lA) (xc) (ld) generates an output signal at a level corresponding to each wheel load.

In the present invention, the load cell (1α) (lA)
(xc) Obtain the wheel load, shaft type, and total weight of (ld).

In the case of the drawing example, each of the above blocks (4α) (υ) (4
C) (4d) has a load cell (la) (1h) Cx
c) A connector (l) is provided for taking out the output signal of (ld), and a lead @ (11) not shown in detail is connected to the connector (l), and the lead wire (11) is connected to the connector (l). The above load cell (1α) C1b)
The output signals of CIC) (1d) are respectively output to the measurement unit (
12), and the measuring unit (12) calculates and displays the wheel load, axle type, and total weight of the vehicle (8) based on the output signals of the load cells (LA), (IA), (XC), and (LD). It has become so. The above measurement unit (
12) can have various configurations, but
A block diagram showing an example of this is shown in Figure 4.

In the same figure, (13α) (13b) (13C)
(13d) is each load cell C1α) (lh) (l
c) Amplifier for the output signal of (ld), (14α) (14
b) (14C) (14d] is each amplifier (13α) (1
, 36) (13C) (13d), and the A/D converter (14tL)
(14A) (14C) The output signals of (1) are input to the arithmetic processing circuit (15). Further, (16) is a keyboard, (17) is an LCD character display, and these and an arithmetic processing circuit (15) allow data settings such as date and car model to be performed in a so-called interactive manner. The LCD character display (17) also displays measurement results such as wheel load, axle type, and total weight.

Further, (18) is a printer that prints the set data such as the above-mentioned date and vehicle type, as well as measurement results such as shaft type, shaft type, and total weight.

Note that the arithmetic processing circuit (15) receives a detection signal when the power is turned on, signals from various switches (not shown), etc. as control signals (19).

The arithmetic processing circuit C15] has the arithmetic processing function described below in addition to the above-mentioned interactive data setting function.

That is, as mentioned above, the truck (9) in front of the vehicle (8)
The flange portion C5α) of the four wheels (5) is connected to the load receiving portion (3) of each load cell (LC) (1b) (LC) (ld).
When the measurement person presses a measurement switch (not shown) after each of them has been placed on the top, the signal is received by the arithmetic processing circuit (15) as the control signal (19), and the A/D converter (1) (x4A )Cx4c) (14d) are taken in a large number of times (for example, 10,000 times), their average values are calculated, and each average value is applied to the above-mentioned front truck (9).
The wheel load data of the four wheels (5) are stored at predetermined addresses in the internal memory, respectively.

Next, the vehicle (8) is driven and stopped, and the rear truck (9)
The flange portions (5α) of the four wheels (5) of ) are mounted on the load receiving portions (3) of each load cell (lC) (xb) (1c) (ld), and the above operations are repeated.Then Then, when each wheel load data is obtained for all wheels (5) of the front and rear bogies (9), each axle type data and total weight data are calculated based on these data (addition of predetermined axle type data). These are output to the LCD character display (17) and printer (18), and the LCD
The character display (17) and printer (18) display or print the weight of each wheel, axle type, and total weight along with data such as the date and vehicle type set using the keyboard (16) or the like.

Note that a microcomputer is usually used as the arithmetic processing circuit to realize each of the above-mentioned functions, but since the technology itself is well known, a description thereof will be omitted.

In addition, in the above case, the flange part (5α) of the wheel (5)
) as load cell (1α) (lh) (lc) (4d]
The load cell (xct)C1b)Cxc was placed on the load receiving part (3) of the vehicle (8), and the vehicle (8) was sequentially stopped.
) '(Id) The vehicle (8) may be driven at low speed so as to pass over the load receiving part (3).

In that case, the arithmetic processing circuit (15) may have the following arithmetic processing functions. That is,
The arithmetic processing circuit (15) includes an A/D converter (14α) (10
] (14+?) Determine whether all the output values of (14d) are greater than a predetermined value (for example, a value corresponding to a load of 16 or more), import a large number of data that are greater than the predetermined value, and Through statistical calculations, each wheel (5
) wheel load data can be obtained. That is, the flange part of each wheel (5) is connected to each load cell (1α) (To) (
When riding on the load receiver (3) of IC'J (ld) and passing through it, the A/D converter (lC) (l
b) Since the output value of C1c) (xd) varies to some extent, its distribution state is determined, and the average value of the data near the concentration of the distribution is used as the wheel load data of each wheel (5). In addition.

In this case, unlike the above-described case where the vehicle (8) is temporarily stopped, there is no need to operate the measurement switch.

Then, once each wheel load data is obtained for all wheels (5) of the front and rear bogies (9), each axle type data and total Weight data is obtained by calculation, and these are L
Output to the CD character display (17) and printer (18), and the LCD character display (17) and printer (18)
According to the above keyboard (16
] is displayed or printed along with data such as the date and vehicle type set in the above settings. In addition, the arithmetic processing circuit C15)
If the above data vary significantly.

Determine its status and send an error message to the printer (18
) is convenient.

According to the present invention, there is no need for jacking up or the like as in the conventional method, so rapid measurement is possible without requiring manpower and time. In addition, in the present invention, the running rail (
2) Load cell (IC) (lb) (IC) (1
d), the existing running rails (2
) can be used as is, there is no need to provide a special running rail for measurement, and the measurement location is not limited, making it economical and convenient.

Note that the present invention can also be used to measure the weight of various types of cargo by preparing a truck with a predetermined weight that can load various types of cargo and loading the various types of cargo onto the truck.

〔Effect of the invention〕

According to the present invention, there is no need for jacking up when measuring the wheel load, axle type, a weight, etc. of a railway vehicle, for example.
It enables quick measurements without requiring manpower and time.
Furthermore, the existing running rail (2) can be used as is, there is no need to install a special running rail for measurement, and the measurement location is not limited, so it is economical and convenient. . Furthermore, by preparing a trolley with a predetermined weight that can load various types of cargo, it is possible to load various types of cargo onto the trolley, load the various types of cargo, and easily measure the weight of the various types of cargo. .

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and Figure 1 is a perspective view showing the arrangement of load cells, and Figure 2 is a perspective view showing the arrangement of load cells.
Figure 3 is a sectional view taken along line A, Figure 3 is a sectional view taken along line B-B of Figure 2, and Figure 4 is a block diagram of the measurement unit. (lα) (lb) (xC) (ld) Load cell, (2) Running rail, (3) Load receiver.

Claims (1)

[Claims] The flange portion of the wheel is placed on the load receiving portion of a load cell disposed on the side of the running rail, and the wheel load, shaft type, and total weight of the vehicle are obtained based on the output signal of the load cell. Weight measurement method.