JP2010093951A - Pickup coil inspection device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pickup coil inspection device that eliminates time and effort for adjustment work by automatically adjusting the coupling degree. <P>SOLUTION: A metal-piece holding unit 142 movably holds a metal piece 141 such that the coupling degree of a pickup coil 3 is changed according to the position of the metal piece. A coupling-degree measuring unit 23 outputs a measurement signal to the pickup coil 3 so as to measure the coupling degree. A pickup coil inspection device is configured to make the position of the metal piece 141 variable while including the coupling-degree measuring unit 23. Accordingly, an adjustment control unit 21 controls the position of the metal piece 141 on the basis of the measurement value of the coupling degree, thereby automatically adjusting the coupling degree to a set value. Accordingly, the pickup coil inspection device executes an inspection of a pickup coil by properly and accurately changing the coupling degree without requiring a coupling-degree tester. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle upper body inspection apparatus for performing inspections such as a response distance of a vehicle upper body.

  A vehicle control device such as an automatic train stop device (so-called ATS device) is configured such that when the vehicle upper is coupled to the ground child, the oscillation frequency is changed to the resonance frequency of the ground child, so that the ground side on the vehicle upper side. Control information is received, and vehicle control is performed according to the control information. For example, when the vehicle upper unit is connected to the ground unit indicating the stop indication, the control signal of the corresponding frequency is received from the ground unit, the brake control is given to the vehicle, and the alarm is sounded by the bell provided on the vehicle. Car control such as.

  The on-board device includes an amplifying circuit that is a receiver and an on-vehicle unit that constitutes a feedback circuit thereof. The amplifying circuit and the on-vehicle unit constitute an oscillation circuit. The vehicle upper element is constituted by a pair of coils that perform transmission and reception, respectively, and is disposed under the floor of the vehicle body. The pair of coils are electromagnetically coupled by an iron adjustment bar (metal piece), so that the oscillation state is maintained and a change in frequency phenomenon occurs. This degree of coupling is referred to as the degree of coupling, and is generally represented by an induced voltage (mV) generated in the transmitting coil when a current of 100 (mA) is passed through the receiving coil. It should be noted that the degree of coupling usually has a specified value in the range of 80 ± 20 (mV).

  The degree of coupling is performed by changing the position of the adjustment bar described above, but this adjustment has conventionally been problematic. On the other hand, for example, Patent Document 1 discloses an on-board device that facilitates adjustment of the degree of coupling by monitoring a monitor signal corresponding to the output of the amplifier circuit to know the degree of coupling.

However, in the periodic inspection of the vehicle upper body, the inspection described in Patent Document 1 cannot be applied because the moving distance is inspected with the vehicle upper body removed from the vehicle. Therefore, every time the inspection conditions such as the position of the vehicle upper part relative to the ground change, the cable of the vehicle upper part is connected, and the coupling degree adjustment attached to the vehicle upper part is confirmed while checking the coupling degree with the coupling degree tester. There has been a problem that the laborious work is still being performed by adjusting the metal fittings manually.
Japanese Patent Laid-Open No. 9-2221030

  SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle upper child inspection apparatus that automatically adjusts the degree of coupling and saves the labor of adjustment work.

  In order to solve the above-described problem, the vehicle upper child inspection apparatus according to the present invention includes a vehicle upper child holding unit, a coupling degree adjusting unit, a connection switching unit, a coupling degree measuring unit, and an adjustment control unit. The vehicle upper holding unit holds a vehicle upper to be inspected.

  The coupling degree adjusting unit includes a metal piece, a metal piece holding unit, and a driving unit. The metal piece holding part holds the metal piece so as to be movable so that the coupling degree of the vehicle upper body changes according to the position of the metal piece. The drive unit drives the metal piece holding unit based on the input control signal to move the metal piece.

  The connection switching unit switches the connection destination of the vehicle upper element to the coupling degree measuring unit when adjusting the coupling degree, and to a receiver corresponding to the vehicle upper element when inspecting the vehicle upper element.

  The coupling degree measurement unit measures a coupling degree of the vehicle upper unit by outputting a measurement signal to the vehicle upper unit, and outputs the measured value to the adjustment control unit. The adjustment control unit outputs the control signal to the drive unit so that the measured value becomes a predetermined set value.

  As described above, since the position of the metal piece is variable and the coupling degree measuring unit is provided, the adjustment control unit automatically adjusts the coupling degree by controlling the position of the metal piece based on the measurement value of the coupling degree. It can be adjusted to the set value. Therefore, the degree of coupling can be changed appropriately and reliably and the vehicle upper can be inspected without the need for a coupling degree tester. In addition, since the connection switching unit switches the connection of the vehicle upper arm according to the adjustment of the coupling degree or at the time of the inspection, the connector of the vehicle upper cable is detached and connected at every connection adjustment or inspection. The troublesome work of changing can be omitted. Furthermore, the effect of preventing human error can be obtained by such automation.

  As described above, according to the present invention, it is possible to provide an on-board inspection apparatus that automatically adjusts the degree of coupling and saves the labor of adjustment work.

  FIG. 1 shows the configuration of a vehicle upper piece inspection apparatus according to the present invention. The vehicle upper part inspection device includes a reactive distance inspection device 1 and an inspection control device 2. The responsive distance inspection device 1 is a facility for inspecting the responsive distance of the vehicle upper element, that is, the distance that can be exchanged with the ground element. The inspection control device 2 is a device for performing an operation and control for performing an inspection by the responsive distance inspection device 1.

  The responsive distance inspection apparatus 1 includes a stage driving unit 11, a vehicle upper element holding unit 13, a coupling degree adjusting unit 14, and a ground unit 15. The ground element 15 is installed on the bottom surface P, and changes the oscillation frequency of the oscillation circuit including the vehicle upper element 3 to a predetermined resonance frequency.

  The vehicle upper holding unit 13 includes a vehicle upper stage 131 and stage support units 132 and 133, and holds the vehicle upper 3 to be inspected. The vehicle upper 3 includes a transmission coil 31 and a reception coil 32. In FIG. 1, for convenience, the coils 31 and 32 are shown as being held perpendicular to the bottom surface P, but in practice, they are held so as to be parallel to the bottom surface P.

  The vehicle upper stage 131 is a fixing member that fixes the vehicle upper 3 at a predetermined position, and includes a rectangular frame or the like. The stage support portions 132 and 133 respectively support the end portions of the vehicle upper stage 131 so as to be slidable in the horizontal direction (left and right direction in FIG. 1). A pair of upper and lower rollers that are opposed to each other are provided inside the vehicle upper support portions 132 and 133, and the pair of rollers supports the end portion of the vehicle upper stage 131 by sandwiching it. Although not shown, a stage support portion is similarly provided at the opposite end of the vehicle upper stage 131. As a result, the vehicle upper holding unit 13 holds the vehicle upper 3 so that the horizontal distance x from the ground 15 changes.

  The stage drive unit 11 is a vehicle upper unit drive unit, and drives the vehicle upper unit holding unit 13 based on the input vehicle upper unit control signal to move the vehicle upper unit 3. The stage drive unit 11 includes a power source such as a motor, and is connected to the vehicle upper support unit 132 through a power transmission mechanism such as a gear mechanism.

  The coupling degree adjusting unit 14 includes a metal piece 141, a metal piece holding unit 142, and a belt driving unit 143. The metal piece 141 is the adjustment bar described above, but is not particularly limited to iron, and may be made of aluminum or the like. The metal piece holding part 142 includes a belt 1421 and rotating shafts 1422 and 1423, and holds the metal piece 141 so that the coupling degree of the vehicle upper 3 is changed according to the position. Specifically, the metal piece 141 is fixed to a predetermined position of the belt 1421 with a metal fitting or the like, and moves in the horizontal direction (left and right direction in FIG. 1) when the rotating shafts 1422 and 1423 rotate.

  The belt driving unit 143 drives the metal piece holding unit 142 based on the input control signal to move the metal piece 141. The belt drive unit 143 includes a power source such as a motor, and is connected to the rotary shaft 1422 via a power transmission mechanism such as a gear mechanism.

  On the other hand, the inspection control device 2 includes a connection switching unit 25, a coupling degree measurement unit 23, and an adjustment control unit 21. Further, the inspection control device 2 includes an adjustment operation unit 22, a coupling degree display unit 24, a switching operation unit 26, an inspection operation unit 27, a result display unit 28, and an inspection control unit 29.

  The connection switching unit 25 switches the connection destination of the vehicle upper piece 3 to the coupling degree measurement unit 23 when adjusting the coupling degree and to the receiver 4 corresponding to the vehicle upper piece 3 when inspecting the vehicle upper piece 3. The connection switching unit 25 is an electrical switch that is connected to the cable of the vehicle upper 3 and switches the connection destination according to the input switching signal. In the switching operation, the switching operation unit 26 outputs a switching signal to the connection switching unit 25 in accordance with an external operation. The connection switching unit 25 may perform the switching operation based on the switching signal from the adjustment control unit 21 or the inspection control unit 29 without using the switching signal from the switching operation unit 26 as in the present embodiment. .

The coupling degree measurement unit 23 measures the coupling degree of the vehicle upper unit 3 by outputting a measurement signal to the vehicle upper unit 3 and outputs the measured value to the adjustment control unit 21. Specifically, the coupling degree measurement unit 23
When a measurement instruction signal is input from the adjustment control unit 21, a current of 100 (mA) is passed through the receiving coil 32 and the induced voltage (mV) of the transmitting coil 31 is measured. The coupling degree display unit 24 includes a 7-segment decoder and the like, and displays the measurement value of the coupling degree measurement unit 23.

  When adjusting the coupling degree, the adjustment operation unit 22 outputs an adjustment instruction signal and a coupling degree set value K0 to the adjustment control unit 21 in accordance with an external operation. At this time, although it is necessary for the connection switching unit 25 to connect the vehicle upper 3 and the coupling degree measurement unit 23, the connection may be forcibly switched from the adjustment control unit 21. The adjustment operation unit 22 includes operation means such as a computer monitor and a keyboard, for example.

  The adjustment control unit 21 outputs a control signal to the belt driving unit 143 so that the measured value becomes a predetermined set value K0. The adjustment control unit 21 receives the adjustment instruction signal from the adjustment operation unit 22, outputs the measurement instruction signal to the coupling degree measurement unit 23, and sets the measurement value K and the set value K 0 input from the coupling degree measurement unit 23. The difference ΔK is calculated. Further, the adjustment control unit 21 outputs a control signal to the belt driving unit 143 until the difference ΔK becomes smaller than the predetermined value L. This control signal is generated by proportional control based on ΔK, for example. When the difference ΔK is smaller than the predetermined value L, the adjustment control unit 21 stops outputting the control signal, assuming that the coupling degree is adjusted to the set value K0. At this time, it can be confirmed by the measured value displayed on the coupling degree display section 24 that the coupling degree has been adjusted to the set value K0.

  The inspection operation unit 27 outputs an inspection instruction signal to the inspection control unit 29 in accordance with an external operation when inspecting the reactive distance. At this time, the vehicle upper 3 and the receiver 4 need to be connected by the connection switching unit 25, but the connection may be forcibly switched from the inspection control unit 29. The inspection operation unit 27 includes, for example, operation means such as a computer monitor and a keyboard. Here, the inspection operation unit 27 may be configured as an operation unit common to the adjustment operation unit 22.

  The inspection control unit 29 outputs a vehicle upper element control signal to the stage driving unit 11 so that the horizontal distance x between the vehicle upper element 3 and the ground element 15 becomes a specified value, and the relative position of the metal piece 141 with respect to the vehicle upper element 3. A control signal is output to the belt driving unit 143 so that the position is maintained. That is, the inspection control unit 29 controls the position of the vehicle upper 3 in order to inspect the response distance of the vehicle upper 3. At this time, the inspection control unit 29 controls the metal piece 141 to move by the same distance as the vehicle upper 3 moves so that the coupling degree does not change due to the change of the position of the vehicle upper 3 (FIG. 1). (See the vehicle upper 3 and the metal piece 141 shown by a solid line and a dotted line). Therefore, the trouble of readjustment of the degree of coupling accompanying the position change of the vehicle upper 3 can be saved.

  In addition, the inspection control unit 29 outputs an inspection signal to the receiver 4 and determines an inspection result based on a response signal input from the receiver 4 when inspecting the reactive distance. The inspection result is output to the result display unit 28. The result display unit 28 is configured by a liquid crystal display device or the like. Here, when the connection switching unit 25 is erroneously on the coupling degree measuring unit 23 side during the response distance inspection, the inspection control unit 29 cannot receive a response signal from the receiver 4, so that the result display unit 28 shows NG. Therefore, it is desirable that the inspection control unit 29 detects that the connection switching unit 25 is connected to the coupling degree measurement unit 23 and displays a warning on the result display unit 28.

  Next, FIG. 2 shows the flow of adjustment and inspection of the degree of coupling, and the effects of the present invention will be described. First, in order to adjust the coupling degree, the switching operation unit 26 is operated to switch the connection destination of the vehicle upper 3 to the coupling degree measurement unit 23 (St1). Further, the adjustment operation unit 22 is operated to specify the set value K0 and instruct the start of adjustment (St2). In response to this, the adjustment control unit 21 outputs a measurement instruction signal to the coupling degree measurement unit 23.

  The coupling degree measurement unit 23 outputs a measurement signal to the vehicle upper 3 and measures the coupling degree K (St3). The adjustment control unit 21 calculates ΔK = | K−K0 | from the measurement value K input from the coupling degree measurement unit 23 (St4). When ΔK <L is not satisfied, the adjustment control unit 21 outputs a control signal to the belt driving unit 143 to appropriately control the position of the metal piece 141 (St5). This is repeatedly executed until ΔK <L (St3 to St5).

  Next, in order to inspect the response distance, the switching operation unit 26 is operated to switch the connection destination of the vehicle upper 3 to the receiver 4 (St6). Further, the inspection operation unit 27 is operated to output an inspection instruction signal to the inspection control unit 29 (St7). The inspection control unit 29 controls the position of the vehicle upper 3 and the metal piece 141, outputs an inspection signal to the receiver 4, and determines the inspection result from the response signal (St8). The inspection result is output to the result display unit 28 (St9), and the inspection ends. Further, when the inspection is performed with the coupling degree K changed to another set value, the flow is executed again from St1.

  As described above, since the position of the metal piece 141 is variable and the coupling degree measurement unit 23 is provided, the adjustment control unit 21 automatically controls the position of the metal piece 141 based on the measurement value of the coupling degree. The degree of coupling can be adjusted to a set value. Therefore, the degree of coupling can be changed appropriately and reliably and the vehicle upper can be inspected without the need for a coupling degree tester. In addition, since the connection switching unit 25 switches the connection of the vehicle upper arm according to the adjustment of the coupling degree or the inspection, the connection of the vehicle upper cable is disconnected and connected every time the coupling degree is adjusted or inspected. The troublesome work of changing the destination can be omitted. Furthermore, the effect of preventing human error can be obtained by such automation.

  Further, when the applicant manufactured and tested the vehicle upper part inspection apparatus according to the present invention, it was found that the time required for adjusting the coupling was shortened by about 5 minutes as compared with the prior art. Currently, since it is necessary to change the degree of coupling 3 times per inspection item, the total time of about 15 minutes is shortened. Since there are many inspection items, the time can be further shortened. Since railway vehicles are public transport, there is not much time given to regular inspections, and inspections must be accurate from the viewpoint of safety. It is extremely beneficial to improve the performance.

  In this embodiment, the examination of the reactive distance is given as an example. However, the present invention is not limited to this, and other examinations may be used as long as the degree of coupling needs to be adjusted. In the present embodiment, the positions of the vehicle upper 3 and the metal piece 141 are both movable in the horizontal direction. However, the present invention is not limited to this, and the movement directions may be perpendicular to each other. Alternatively, both may be movable in a plane in two dimensions.

  Although the contents of the present invention have been specifically described above with reference to the preferred embodiments, it is obvious that those skilled in the art can take various modifications based on the basic technical idea and teachings of the present invention. It is.

It is a structure of the vehicle upper part inspection apparatus which concerns on this invention. It is a flow chart of adjustment and inspection of the degree of coupling.

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Car upper part 4 Receiver 11 Stage drive part 13 Car upper part holding part 14 Coupling degree adjustment part 141 Metal piece 142 Metal piece holding part 143 Belt drive part 15 Ground element 21 Adjustment control part 23 Coupling degree measurement part 25 Connection switching part 29 Inspection control unit

Claims (2)

A vehicle upper body inspection device including a vehicle upper body holding unit, a coupling degree adjusting unit, a connection switching unit, a coupling degree measuring unit, and an adjustment control unit,
The vehicle upper holding unit holds a vehicle upper to be inspected,
The coupling degree adjusting unit includes a metal piece, a metal piece holding unit, and a driving unit,
The metal piece holding portion holds the metal piece so as to be movable so that the coupling degree of the vehicle upper body changes according to the position of the metal piece,
The drive unit drives the metal piece holding unit based on the input control signal to move the metal piece,
The connection switching unit switches the connection destination of the vehicle upper part to the coupling degree measurement unit at the time of adjusting the coupling degree, and to a receiver corresponding to the vehicle upper part at the time of inspection of the vehicle upper part,
The coupling degree measurement unit measures the coupling degree of the vehicle upper unit by outputting a measurement signal to the vehicle upper unit, and outputs the measured value to the adjustment control unit,
The adjustment control unit outputs the control signal to the drive unit so that the measured value becomes a predetermined set value.
Car upper part inspection device. The vehicle upper part inspection device according to claim 1,
Furthermore, it includes a ground unit, a vehicle upper unit drive unit, and an inspection control unit,
The ground unit changes the oscillation frequency of an oscillation circuit including the vehicle upper unit to a predetermined resonance frequency,
The vehicle upper element holding unit holds the vehicle upper element so that the horizontal distance from the ground element changes,
The vehicle upper element drive unit drives the vehicle upper element holding unit based on the input vehicle upper element control signal to move the vehicle upper element,
The inspection control unit outputs the vehicle upper element control signal to the vehicle upper element drive unit so that the horizontal distance becomes a specified value, and the relative position of the metal piece with respect to the vehicle upper element is maintained. So as to output the control signal to the drive unit,
Car upper part inspection device.

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