JP2011047861A - Instrument for measuring abrasion amount - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an instrument measuring abrasion amount capable of quickly and accurately measuring the abrasion amount on a tapered surface of a rail. <P>SOLUTION: An instrument for measuring an abrasion amount includes: a contact member 1 having an upper region 1a extending approximately horizontally while in contact with an upper surface of a rail R and a side region 1b extending approximately vertically while in contact with a side face Rb of the rail R and having the upper region 1a and the side region 1b coupled in an approximate L-shape and capable of contact with an upper surface Ra and the side face Rb of the rail R, respectively; a gauge head 3 slidable approximately horizontally at a reference height A on a tapered surface Rc and having a leading edge capable of coming into contact with the tapered surface Rc; a measuring means 5 capable of measuring a slide amount of the gauge head 3 until the leading edge of the gauge head 3 comes into contact with the tapered surface Rc; and a display means 6 for indicating a measurement value of a measuring means 5 as a numeral. An abrasion amount on the tapered surface Rc can be grasped by an indication of a display means 6. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a rail composed of an upper surface on which a wheel of a train can roll, a side surface extending in a substantially vertical direction, and a tapered surface that abuts against a flange formed inside the wheel and connects the upper surface and the side surface. The present invention relates to a wear amount measuring device capable of measuring the wear amount of the tapered surface.

  A rail through which a train passes is usually composed of an upper surface on which wheels can roll, a side surface extending in the vertical direction, and a tapered surface that abuts a flange formed inside the wheel and connects the upper surface and the side surface. Yes. Among these, since the flange of the wheel contacts with the tapered surface when the wheel rolls, it is more worn than other parts, and it is necessary to frequently check the amount of wear and check it frequently. In the inspection of such a rail, conventionally, a general-purpose ruler is applied to the reference height position on the tapered surface, and the scale is visually measured to measure the wear amount of the tapered surface. In addition, since this prior art does not relate to the literature known invention, there is no prior art document information to be described.

  However, in the above prior art, a general-purpose ruler is applied to the tapered surface and the amount of wear is measured, so that it is not always possible to measure with high accuracy, and it is necessary to visually measure the scale. For this reason, it has been difficult to quickly measure the amount of wear. In particular, since it is difficult to measure at the reference height of the tapered surface, there is a problem that skill is required to measure the wear amount of the tapered surface quickly and accurately.

  The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a wear amount measuring device capable of measuring the wear amount of the tapered surface of the rail quickly and accurately.

  The invention according to claim 1 is an upper surface on which a wheel of a train can be rolled, a side surface extending in a substantially vertical direction, and a tapered surface that connects the upper surface and the side surface while a flange formed inside the wheel abuts. In the wear amount measuring device capable of measuring the wear amount of the tapered surface of the configured rail, with the upper portion extending in a substantially horizontal direction in contact with the upper surface of the rail and in contact with the side surface of the rail A contact member that has a side portion extending in a substantially vertical direction, the upper side portion and the side portion are connected in a substantially L shape, and can be brought into contact with the upper surface and the side surface of the rail; A measuring element that is slidable in a substantially horizontal direction at a reference height on the taper surface of the rail, and has a tip that can be brought into contact with the taper surface of the rail, and a tip of the measuring element that touches the taper surface. Be in contact Measuring means capable of measuring the amount of sliding of the probe at the display, and display means for displaying numerical values measured by the measuring means numerically, the amount of wear on the taper surface of the rail is displayed by the display means It is configured so that it can be grasped.

  According to a second aspect of the present invention, there is provided the wear amount measuring instrument according to the first aspect, further comprising a spacer capable of setting the position of the measuring element to a zero point, and the sliding amount of the measuring element from the zero point is determined as the wear amount of the tapered surface. It can be displayed on the display means.

  According to a third aspect of the present invention, in the wear amount measuring instrument according to the first or second aspect, a sensor body including the measuring element, the measuring unit, and the display unit is fixed to the side portion, and the side A through hole is provided at a reference height at one side, and the measuring element is slidable through the through hole.

  According to a fourth aspect of the present invention, in the wear amount measuring instrument according to any one of the first to third aspects, a magnet is formed on a contact surface of the upper portion with the upper surface of the rail. And

  According to the first aspect of the present invention, when the upper part and the side part of the contact member are brought into contact with the upper surface and the side surface of the rail and the tip of the measuring element is slid until it comes into contact with the taper surface of the rail, the display is performed. Since the wear amount of the taper surface of the rail can be grasped by displaying the means, the wear amount of the taper surface of the rail can be measured quickly and accurately.

  According to the second aspect of the present invention, since the spacer capable of setting the measuring element to the zero point is provided and the sliding amount of the measuring element from the zero point can be displayed on the display means as the wear amount of the taper surface, the display means directly The amount of wear can be displayed, and the amount of wear on the tapered surface of the rail can be measured more quickly.

  According to the invention of claim 3, the sensor body including the measuring element, the measuring means, and the display means is fixed to the side portion, the through hole is provided at the reference height in the side portion, and the through hole is Therefore, the wear amount measuring instrument can be reduced in size and can be easily carried.

  According to the invention of claim 4, since the magnet is formed on the contact surface of the upper portion with the upper surface of the rail, the upper portion and the side portion of the contact member are brought into contact with the upper surface and the side surface of the rail. Can be held by the magnetic force of the magnet, workability at the time of wear amount measurement can be further improved, and the contact member 1 can be prevented from being displaced at the time of wear amount measurement. Measurement of the amount of wear can be performed.

The front view which shows the abrasion amount measuring device which concerns on embodiment of this invention Plan view showing the same wear amount measuring instrument Left side view showing the same wear amount measuring instrument Cross-sectional schematic diagram showing a rail as a target for wear measurement with the same wear amount measuring instrument

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The wear amount measuring instrument according to the present embodiment can measure the wear amount of the taper surface of the rail. As shown in FIGS. 1 to 3, the substantially L-shaped contact member 1, the measuring element 3, It is mainly composed of the sensor body 2 on which the measuring means 5 and the display means 6 are formed. However, the amount of wear of the taper surface Rc can be measured by bringing the tip of the measuring element 3 into contact with the taper surface Rc of the rail R in a state where the contact member 1 is in contact with the rail R. Has been.

  As shown in FIG. 4, the rail R as a measurement object includes an upper surface Ra on which a train wheel D can roll, a side surface Rb extending in a substantially vertical direction, and a flange Da formed on the inner side of the wheel D. It comprises a tapered surface Rc that contacts and connects the upper surface Ra and the side surface Rb, and the wear amount measuring instrument in this embodiment can measure the wear amount of the tapered surface Rc that is relatively heavily worn. Specifically, the tip of the measuring element 3 is brought into contact with the position of the reference height A below the upper surface Ra on the taper surface Rc, and the dimension s from the contact position to the side surface Rb and the reference dimension (wear). The amount of wear can be measured by comparing it with the dimension of the rail R having no).

  The contact member 1 is made of, for example, a resin part. As shown in FIG. 1, the contact member 1 is formed on an upper portion 1 a extending in a substantially horizontal direction in contact with the upper surface Ra of the rail R and a side surface Rb of the rail R. It has a side part 1b extending in a substantially vertical direction in a contact state, and the upper part 1a and the side part 1b are connected in a substantially L shape (in this embodiment, they are connected by integral molding). Each of them can be brought into contact with the upper surface Ra and the side surface Rb of the rail R.

  That is, the lower surface of the upper portion 1a is made flat so as to form the contact surface 1aa that contacts the upper surface Ra of the rail R, and the inner surface (the left surface in FIG. 1) of the side portion 1b is the side surface Rb of the rail R. The contact surface 1ba is made flat so that the contact surface 1ba contacts the upper surface Ra of the rail R, and the contact surface 1ba can contact the side surface Rb of the rail R. It is. In addition, the code | symbol 1bb in the figure has shown the flange part integrally extended from the side part 1b, and the sensor main body 2 is attached with the screw | thread N with respect to the said flange part 1bb.

  The sensor body 2 is fixed to the side portion 1b via the flange portion 1bb, and an operation button 2a for switching on and off while incorporating a power supply (not shown) (dry battery such as a button battery in this embodiment). An operation button 2b for setting a zero point is formed. The sensor body 2 is provided with a measuring element 3, a measuring means 5, and a display means 6. Of these, the measuring element 3 is projected from the sensor body 2 at the tip end side and at the reference height A in the horizontal direction in FIG. Are slidable substantially linearly.

  Specifically, the probe 3 is slidable in a substantially horizontal direction at a reference height A on the taper surface Rc of the rail R. As shown in FIGS. The sensor body 2 protrudes toward the left end in the drawing and can be moved forward and backward, and is connected to the operation portion 4 protruding from the other end (right end in the drawing) of the sensor body 2. Thus, the measuring element 3 can slide in the same direction along a guide rail (not shown) in the sensor body 2 by moving the operation section 4 in the left-right direction in the drawing. Further, a through hole 7 is provided at a reference height A in the side portion 1b, and the probe 3 can be moved forward and backward through the through hole 7 by sliding.

  The measuring means 5 is composed of a displacement sensor such as a linear sensor (for example, a depth sensor for measuring the depth of the hole) disposed in the sensor body 2, and the tip of the measuring element 3 is in contact with the tapered surface Rc. It is possible to measure the sliding amount (displacement amount) of the measuring element 3 until it reaches the state. With this measuring means 5, the sliding amount of the measuring element 3 can be electrically measured and displayed on the display means 6 based on the measured value.

The display means 6 is for displaying the measured value by the measuring means 5 in numbers (digital display). For example, the display means 6 is a liquid crystal screen electrically connected to the measuring means 5 or 7 segments (so-called 7-segment). Stuff). The amount of wear of the taper surface Rc of the rail R can be grasped by the display (digital display) of the display means 6. For example, if the position of the contact surface 1ba in the side portion 1b (the opening position on the rail R side in the through hole 7) is set to the zero point, the sliding amount of the probe 3 from there is measured by the measuring means 5. The dimension s (see FIG. 4) can be displayed on the display means 6, so that the wear amount can be grasped as compared with the dimension s ₀ (reference dimension) in the rail R without wear.

However, the position of the probe 3 can be set to the zero point (that is, the tip of the probe 3 is set to be the position of the reference dimension in the rail R where there is no wear). The sliding amount of the child 3 may be displayed on the display means 6 as the wear amount of the tapered surface Rc. More specifically, for example, when a spacer is attached so as to cover the opening on the rail R side of the through hole 7 and the tip of the measuring element 3 is brought into contact with the spacer, the measuring element 3 is not worn on the rail R. A zero point is set so that the position is the dimension s ₀ (reference dimension). After that, if the spacer is removed and the wear amount measuring device is set on the rail R, the wear amount itself can be measured, and the wear amount can be directly displayed on the display means 6.

In the present embodiment, since the operation button 2b for setting the zero point is formed on the sensor body 2, by operating the operation unit 4 and pressing the operation button 2b at a desired position, as described above. It is possible to easily perform zero point setting (one having the opening position on the rail R side in the through hole 7 as the zero point, or one having the position of the dimension s ₀ (reference dimension) in the rail R with no wear as the zero point).

  Furthermore, in this embodiment, the magnet M is formed in the contact surface 1aa with the upper surface Ra of the rail R in the upper part 1a of the contact member 1. Since the abutting member 1 can be attracted to the upper surface Ra of the rail R by the magnetic force of the magnet M, the upper portion 1a and the side portion 1b of the abutting member 1 are brought into contact with the upper surface Ra and the side surface Rb of the rail R. Can be held by the magnetic force of the magnet M, the workability at the time of wear amount measurement can be further improved, and the contact member 1 can be prevented from shifting during the wear amount measurement, More accurate wear amount measurement can be performed.

  According to the above-described embodiment, the upper end portion 1a and the side portion 1b of the contact member 1 are brought into contact with the upper surface Ra and the side surface Rb of the rail R, and the tip of the measuring element 3 is brought into contact with the tapered surface Rc of the rail R. When sliding, the display means 6 displays the wear amount of the taper surface Rc of the rail R directly (displays the wear amount itself) or indirectly (the dimension s from the opening position of the through hole 7 on the rail R side). The wear amount of the taper surface Rc of the rail R can be measured quickly and accurately.

  Further, as described above, if a spacer capable of setting the measuring element 3 to the zero point is provided and the sliding amount of the measuring element 3 from the zero point can be displayed on the display means 6 as the wear amount of the tapered surface Rc, The amount of wear can be displayed directly on the display means 6, and the amount of wear on the tapered surface Rc of the rail R can be measured more quickly. In particular, in the present embodiment, since the display means 6 displays numbers (digital display), the measurement accuracy can be further improved as compared with the case where the operator reads the scale.

  Further, the sensor body 2 including the measuring element 3, the measuring means 5, and the display means 6 is fixed to the side portion 1b, and a through hole 7 is provided at a reference height A in the side portion 1b. Since the measuring element 3 is slidable through 7 and can be advanced and retracted, the wear amount measuring instrument can be reduced in size and can be easily carried. In addition, the display means 6 is not limited to what is arrange | positioned at the sensor main body 2, It is good also as what is arrange | positioned in another position (for example, the upper surface or side surface etc. of the upper side site | part 1a).

  Although the present embodiment has been described above, the present invention is not limited thereto. For example, instead of the resin contact member 1, the contact member made of another material (for example, a light metal such as stainless steel). Alternatively, it may be a wear amount measuring instrument that can be carried more easily by folding the upper part 1a and the side part 1b so as to be close or separate.

  The upper portion extending in the substantially horizontal direction in contact with the upper surface of the rail and the side portion extending in the substantially vertical direction in contact with the side surface of the rail, and the upper portion and the side portion are An abutting member that is connected in a substantially L-shape and can be brought into contact with the upper surface and side surface of the rail, and is slidable in a substantially horizontal direction at a reference height on the tapered surface of the rail. A measuring element capable of contacting the tapered surface of the rail, a measuring means capable of measuring a sliding amount of the measuring element until a tip of the measuring element comes into contact with the tapered surface, Display means for displaying numerical values measured by the means, and if the wear amount measuring device is configured to be able to grasp the wear amount of the tapered surface of the rail by the display of the display means, the appearance shape is different Or other functions added It can be applied to things like.

DESCRIPTION OF SYMBOLS 1 Contact member 1a Upper side part 1b Side part 2 Sensor main body 3 Measuring element 4 Operation part 5 Measuring means 6 Display means 7 Through-hole M Magnet R Rail Ra Upper surface Rb Side surface Rc Tapered surface

Claims (4)

The taper surface of the rail formed by the upper surface on which the wheels of the train can roll, the side surface extending in a substantially vertical direction, and the taper surface that abuts the flange formed inside the wheel and connects the upper surface and the side surface. In a wear amount measuring device capable of measuring the wear amount of
An upper portion extending in a substantially horizontal direction in contact with the upper surface of the rail, and a side portion extending in a substantially vertical direction in contact with a side surface of the rail, and the upper portion and the side portion. Are connected in a substantially L-shape, and contact members that can be in contact with the upper and side surfaces of the rail,
A measuring element that is slidable in a substantially horizontal direction at a reference height on the tapered surface of the rail, and whose tip is capable of contacting the tapered surface of the rail,
Measuring means capable of measuring the sliding amount of the measuring element until the tip of the measuring element comes into contact with the tapered surface;
Display means for displaying the measurement values by the measurement means in numbers;
And a wear amount measuring instrument configured to be able to grasp the wear amount of the taper surface of the rail by the display of the display means.   2. The spacer according to claim 1, further comprising a spacer capable of setting the position of the probe to a zero point, and the amount of sliding of the probe from the zero point being displayed on the display unit as a wear amount of the tapered surface. Wear amount measuring device.   A sensor body having the measuring element, measuring means, and display means is fixed to the side part, and a through hole is provided at a reference height in the side part, and the measuring element slides through the through hole. The wear amount measuring device according to claim 1, wherein the wear amount measuring device is movable.   The wear amount measuring device according to any one of claims 1 to 3, wherein a magnet is formed on a contact surface of the upper portion with the upper surface of the rail.

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