KR200437597Y1 - Portable wheel measuring digital gauge - Google Patents

Abstract

The present invention relates to a wheel measuring gauge, and more particularly to a portable wheel measuring digital gauge that is convenient to carry and measure.

Portable wheel measuring digital gauge according to the present invention, the horizontal bar is formed to extend in the horizontal direction; An inner side fixing part connected to one end of the horizontal bar and attached to an inner side of the wheel to support and fix the digital gauge; An outer circumferential surface fixing part connected to the other end of the horizontal bar and attached to an outer circumferential surface of the wheel to support and fix the horizontal bar so that the horizontal bar is kept parallel to the virtual axis passing through the center of the wheel; A flange height measuring unit including a first sliding block slidably coupled to the horizontal bar and having a first digital display unit at a front surface thereof, and a vertical moving piece sliding through the first sliding block in a vertical direction; A second sliding block slidably coupled to the horizontal bar and having a second digital display portion at a front surface thereof, and protruding from a lower portion of the second sliding block to be in contact with the side surface of the flange according to the movement of the second sliding block; And a flange width measurement part provided with side contact pieces.

Horizontal bar, first sliding block, second sliding block, inner surface fixing part, outer surface fixing part

Description

Portable wheel measurement digital gauge {PORTABLE WHEEL MEASURING DIGITAL GAUGE}

1 is a use state diagram of a conventional wheel measurement scale gauge,

2 is a perspective view of a conventional wheel measurement digital gauge,

3 is a use state diagram of a conventional wheel measurement digital gauge,

4 is a bottom perspective view of a portable wheel measurement digital gauge according to the present invention;

5 is a top perspective view of a portable wheel measurement digital gauge according to the present invention;

6 is a front view of a portable wheel measurement digital gauge according to the present invention,

7 is an exemplary view of fixing a portable wheel measurement digital gauge according to the present invention;

8 is an exemplary view of measuring flange height of a portable wheel measuring digital gauge according to the present invention;

9 is an exemplary view of measuring the flange width of a portable wheel measuring digital gauge according to the present invention;

10 is an exemplary view of measuring a QR value of a portable wheel measuring digital gauge according to the present invention.

Explanation of symbols on the main parts of the drawings

100: horizontal bar 200: inner surface fixing part

210: vertical bar 220: contact block

225: magnet 300: outer peripheral surface fixing

310: fixed arm 320: support roller

400: flange height measuring unit 410: first sliding block

412: first digital display 420: vertical movement

422: upper contact piece 423: locking jaw

425: first stopper 430: first hold button

500: flange width measuring unit 510: second sliding block

512: second digital display unit 520: side contact piece

530: second hold button

The present invention relates to a wheel measuring gauge, and more particularly to a portable wheel measuring digital gauge that is convenient to carry and measure.

In general, wheels travel on rails in trains or subways, and wheel wear occurs due to friction between the rails and the wheels during driving. On the other hand, the wheel is provided with a flange portion to prevent derailment from the rail. The flange portion is configured to be caught inside the rail to prevent the vehicle from turning off and running. Therefore, the wear of the flange portion of the wheel in direct contact with the inside of the rail is directly related to safe driving.

Therefore, in order to ensure the safe driving of the vehicle, the condition of the wheels and the degree of wear are periodically checked, and based on the results, the flanges are reworked to maintain the width of the flange or replace the wheels. . In general, trains that have finished running once are required to inspect all wheels attached to a pair by inspectors, and wheel gauges capable of measuring wheel dimensions are used for inspection of these wheels. Types of such wheel gauges include scale gauges and digital gauges.

1 shows a conventional scale gauge. The scale gauge has a thin overall thickness and the scale is displayed so that the flange width and height can be measured.

In more detail, the conventional scale gauge is formed in a long 'C' shape, one side is provided with a wheel diameter measuring bar (1) having a scale on both sides of the upper surface of the formed bar to measure the diameter of the wheel (W) and Flange width measuring bar for measuring the width of the flange (F) is provided inside the moving groove to be fixed and moved by the fixing bolt (2) in the moving groove (not shown) formed on the other side of the wheel diameter measuring bar (1) (3) and the 'L' shape is inserted into a moving groove (not shown) formed on one side of the wheel diameter measuring bar 1 and fixed and moved by the fixing bolt 4 to measure the height of the flange. C type gauge consisting of a flange height measuring bar (5) is used.However, the scale gauge is not accurate because the scale is read by the naked eye to determine the dimensions. Measuring process due to the small contact area of the wheel The frequently occurs when the gauge is standing be remeasured twisted, and the disadvantage that the measurement error caused by the large fluctuation of the QC staff and skills of the gauge was observed. In addition, when the measurement is finished, the measurement unit is fastened by fixing bolts (2,4) to fix the measurement value does not go wrong, the measurement value in the process of turning the fixing bolts (2,4) has a disadvantage in that accurate and accurate measurement is difficult.

In addition, the scale gauge is made of stainless steel material of 1mm thickness, the measurement scale is 1mm unit, the error occurs a lot depending on the measuring posture, position, etc. of the measurer, the measurement scale is 1mm unit, so the effect of the error is large. In order to reduce the error range, three points of one wheel were measured and averaged, and the measurement time was consumed a lot. .

Therefore, in order to solve such a problem, the digital gauge is mainly used in recent years. 2 and 3 show, for example, a perspective view and a measurement example of the digital gauge disclosed in Korean Utility Model Publication No. 20-0317722.

As shown in FIG. 2, the conventional digital gauge includes a wheel diameter measuring unit 10 measuring a diameter of a wheel, a flange thickness measuring unit 20 measuring a thickness of a flange, and a flange measuring a height of the flange. It is connected to the height measuring unit 30, the wheel diameter measuring unit 10, and formed of a connecting frame 40 for fixing the flange height measuring unit 30 and the flange thickness measuring unit 20, etc. , Frame 11, handle 14, and the like.

The digital gauge is made entirely of stainless steel, and largely divided into a fixed part and a measuring part. The fixing part is composed of wide stainless steel and has a diameter measuring bar 12 extending to be able to measure the diameter together, and a large handle 14 is provided to easily use a heavy gauge to have a structurally large structure. There is no choice but to. The measuring section is composed of a digital display section and the measurement is performed by small and short measuring bars. The digital display is fixed and has a structure in which the measuring bars move and measure.

Such a conventional digital gauge has the advantage that it is possible to measure more reliable than a scale gauge, but it is structurally large and heavy, so it is very inconvenient to measure a wheel in a lower part of a relatively narrow vehicle and increases the fatigue of the measurer. Moreover, the gauge should be positioned vertically toward the center of the wheel when measuring the wheel. In the conventional digital gauge, the gauge is placed in a groove formed inside the inner side of the wheel to find the center of the wheel. It provides inconvenience to put your hands inside, and it causes longer measurement time. In addition, when the night inspection is not equipped with its own lighting, there are many difficulties in measurement.

In addition, the conventional digital gauge has a disadvantage that the digital display and the measurement bar is configured separately, and because the digital display is fixed and the measurement bar cannot be made large due to the structure in which the measurement bar moves.

When the measurement is completed, the gauge should be removed from the wheel to check the measured value through a digital indicator.When the night is checked, it is more difficult to identify than the scale gauge, and the qR measurement is impossible because the qR measurement is impossible. There have been drawbacks that cannot be used during the inspection of essential high-speed railway (KTX).

Accordingly, the present invention was devised to solve the problems of the conventional wheel measuring gauges as described above, and it is easy to measure the narrow and dark vehicle lower and side parts to measure the wheels, thereby shortening the measurement time, and reducing the fatigue of the measurer. In addition to providing a measurement that can be minimized, provides reliable measurements, and is lightweight, easy to carry, allows users to easily operate under any conditions to obtain measured values, and provides a digital gauge capable of measuring qR values. The purpose.

The objects and advantages of the present invention will be described in more detail below, and will be further embodied by the examples. In addition, the objects and advantages of the present invention can be realized by the means shown in the claims and combinations thereof.

Portable wheel measuring digital gauge according to the present invention for achieving the object as described above, the horizontal bar 100 is formed to extend in the horizontal direction; An inner side fixing part 200 connected to one end of the horizontal bar 100 and attached to an inner side of the wheel to support and fix the digital gauge; An outer circumferential surface fixing part 300 connected to the other end of the horizontal bar 100 and attached to an outer circumferential surface of the wheel to support and fix the horizontal bar 100 to be maintained in parallel with a virtual axis passing through the center of the wheel; A first sliding block 410 slidably coupled to the horizontal bar 100 and having a first digital display unit 412 on the front surface thereof, and a first sliding block 410 sliding through the vertical sliding block 410 in a vertical direction. A flange height measuring part 400 having a movable vertical moving piece 420; A second sliding block 510 slidably coupled to the horizontal bar 100 and having a second digital display unit 512 on a front surface thereof, and a protrusion formed at a lower portion of the second sliding block 510. It includes a flange width measuring unit 500 is provided with a side contact piece 520 in contact with the side of the flange as the two sliding block 510 moves.

Here, the inner surface fixing part 200 is connected to one end of the horizontal bar 100 and extends vertically downward, and the inner side of the wheel is provided on the inner side of the vertical bar 210 It is characterized in that it comprises a contact block 220 which is in contact with the magnet 225 for attachment to the wheel in the center.

The outer circumferential surface fixing part 300 is connected to the other end of the horizontal bar 100 and extends vertically downward, and the fixed arm 310 is bent so that the end thereof faces the wheel diameter measurement reference point of the outer circumferential surface of the wheel, and the fixing It is characterized in that it comprises a pair of support rollers 320 are axially coupled to the outer end of the arm 310 in contact with the wheel diameter measurement reference point.

Here, the support roller 320 is characterized in that it has a magnetic for attachment to the outer peripheral surface of the wheel.

On the other hand, the lower end of the vertical movable piece 420 is provided with an upper contact piece 422 which is in contact with the upper end of the flange, the upper contact piece 422 extends longer than the width of the vertical movable piece 420 It is characterized in that the end is provided with a locking jaw 423 extending vertically downward.

The lower end of the side contact piece 520 is positioned to be spaced apart from the lower end of the support roller 320 at an upper vertical distance of 10 mm to 13 mm, and the locking jaw 423 of the end of the upper contact piece 422 is in contact with the upper part. It is characterized in that it is formed so as to protrude in a 2mm length downward from the surface of the piece 422 can be measured qR value.

In addition, the upper end of the vertical moving piece 420 is caught by the front end of the first sliding block 410 in order to prevent the vertical moving piece 420 is completely separated from the first sliding block 410 when moving downward. A first stopper 425 is supported.

In addition, the first sliding block 410 is provided with a first hold button 430 for temporarily fixing the measured value displayed on the first digital display unit 412, and the second sliding block 510 has a second A second hold button 530 for temporarily fixing the measured value displayed on the digital display unit 512 is provided.

In addition, the first digital display unit 412 and the second digital display unit 512 is characterized in that the self-illumination is provided.

Hereinafter, the configuration and operation effects of the present invention will be described in more detail with reference to preferred embodiments and the accompanying drawings.

4 is a bottom perspective view of the portable wheel measurement digital gauge according to the present invention, FIG. 5 is a top perspective view of the portable wheel measurement digital gauge according to the present invention, and FIG. 6 is a front view of the portable wheel measurement digital gauge according to the present invention.

As shown, the portable wheel measuring digital gauge according to the present invention, the horizontal bar 100, the inner surface fixing portion 200, the outer peripheral surface fixing portion 300, the flange height measuring unit 400, flange width measuring unit ( 500).

The horizontal bar 100 is a rod-shaped member having a generally rectangular cross section and extending in a horizontal direction, and a portion for guiding the flange height measuring unit 400 and the flange width measuring unit 500 to be slid in the horizontal direction. to be.

The inner surface fixing part 200 is a part fixed in close contact with the inner surface of the wheel so as to fix the digital gauge according to the present invention without flow to the wheel, and is connected to one end of the horizontal bar 100 vertically downwards. It consists of a vertical bar 210 extending to the contact block 220 which is in direct contact with the inner surface of the wheel at the lower end of the vertical bar 210, the contact block 220 is firm to the inner surface of the wheel The magnet 225 is installed so that it can be fixed.

On the other hand, the outer circumferential surface fixing portion 300 is a portion for fixing the digital gauge according to the present invention to be parallel to the virtual axis (A; see Fig. 7) passing through the center of the wheel, the other end of the horizontal bar 100 It includes a fixed arm 310 connected to extend vertically and bent toward the outer peripheral surface portion of the wheel, the end of which becomes the wheel diameter measurement reference point (P; see Fig. 7).

The fixed arm 310 is to be fixed to the outer peripheral surface of the wheel without flow, for this purpose, the support roller 320 is provided at the end of the fixed arm 310. As shown in FIG. 4, the support rollers 320 are axially coupled to each of the end portions of the fixed arm 310 by one and are magnetically coupled so that the digital gauge is fixed to the outer circumferential surface of the wheel without flow. do.

The flange height measuring unit 400 is slidably connected to the horizontal bar 100. In more detail, the flange height measuring unit 400 is positioned on the inner surface fixing part 200 in a state where the flange height measuring unit 400 is connected to the horizontal bar 100. As illustrated, the flange height measuring unit includes a first sliding block 410 and a vertical moving piece 420.

The first sliding block 410 is provided with a through groove in the side portion in the horizontal direction and is configured to be movable in the horizontal direction along the horizontal bar 100 as the horizontal bar 100 is penetrated and inserted into the front wheel. A first digital display unit 412 is provided to display the flange height measurement value of. The first digital display unit 412 is configured to support self illumination.

The vertical moving piece 420 is a rod-shaped member that vertically penetrates the first sliding block 410 and is slidably moved into and out of the first sliding block 410. In order to prevent departure from the first sliding block 410 during sliding movement of the vertical moving piece 420, the upper end of the vertical moving piece 420 is caught on the leading edge of the first sliding block 410 The first stopper 425 is provided.

In addition, the lower end of the vertical movable piece 420 is provided with an upper contact piece 422 contacting from above the flange tip to measure the height of the flange. The upper contact piece 422 extends longer than the width of the vertical piece 420 in addition to the function of contacting the flange end portion thereof, and when the vertical piece 420 is slid upward, the extension portion of the first sliding block As it is supported by the lower edge of the 410 is also supported as a second stopper to prevent the vertical moving piece 420 is separated from the first sliding block 410. Accordingly, the vertical movable piece 420 can be slidably moved away from the first sliding block 410 in the vertical direction.

On the other hand, one end of the upper contact piece 422, in more detail, the opposite end of the inner surface fixing portion 200 is bent vertically downward so as to be caught by the side of the flange to measure the qR value of the wheel to be described later The latching jaw 423 is further provided.

In addition, a first hold button 430 is provided at a side surface of the first sliding block 410 to temporarily fix the flange height measurement value displayed on the first digital display unit 412 without change. Similarly to the stopwatch function of the digital clock, the first hold button 430 performs a function of stopping the number change from the displayed specific value.

The flange width measuring unit 500 is also slidably connected to the horizontal bar 100. In more detail, the flange width measuring unit 500 is located on the side of the flange height measuring unit 400, that is, the outer circumferential surface fixing unit 300. The flange width measuring part 500 includes a second sliding block 510 and a side contact piece 520.

The second sliding block 510 is configured to be movable in the horizontal direction along the horizontal bar 100 as the through-hole is provided in the side portion in the horizontal direction and the horizontal bar 100 is inserted through the front wheel. A second digital display unit 512 for displaying the flange width measurement value of the device is provided. The second digital display unit 512 is self-illuminating. As shown in FIGS. 4 to 6, the first sliding block 410 is generally configured in the form of a long block in the vertical direction, while the second sliding block 510 is configured in the form of a long block in the horizontal direction. .

A side contact piece 520 is provided below the second sliding block 510. The side contact piece 520 is a part that is in contact with the side portion of the flange in order to measure the flange width of the wheel, but the shape is not limited, but the contact surface should be flat.

In addition, the second sliding block 510 is further provided with a second hold button 530 to temporarily fix the flange width measurement value displayed on the second digital display unit 512 without change.

So far, the configuration of the wheel measuring digital gauge according to the present invention has been described. Hereinafter, the method of using the digital gauge according to the present invention will be described in detail.

Figure 7 is a fixed illustration for explaining a method for fixing the digital gauge on the wheel according to the present invention.

As shown, first, the inner surface fixing part 200 is in close contact with the inner surface of the wheel so that the digital gauge is supported by the magnetic force of the magnet 225 provided in the contact block 220. The outer circumferential surface portion of the wheel, which is then the wheel diameter measurement reference point P, for positioning the digital gauge, more specifically the horizontal bar 100 of the digital gauge, in parallel with the virtual axis A passing through the center of the wheel. Place the support roller 320 of the fixed arm (310). The wheel diameter measurement reference point (P) position is defined in the rail vehicle management guidelines, and means the outer circumferential portion of the wheel that is 70 mm or 75 mm away from the inner surface of the wheel. As already mentioned, the support roller 320 is magnetically supported and fixed to the outer circumferential surface of the wheel.

8 is an exemplary view of measuring the height of the flange (F) by the digital gauge according to the present invention. After fixing the digital gauge to the wheel in the manner as shown in FIG. 7, the measurer moves the vertical movable piece 420 so that the upper contact piece 422 provided at its end contacts the tip of the flange. The height of the flange is measured by the height moved until the vertical moving piece 420 contacts the tip of the flange and is numerically displayed on the first digital display unit 412. When the first hold button 430 provided on the side of the first sliding block 410 is pressed, the height measurement value displayed on the first digital display unit 412 is fixed. Accordingly, the position of the vertical moving piece 420 is changed. Even if the height measurement value is displayed without change. In addition, the first digital display unit 412 is provided with self-illumination and may emit self-illumination for 5 seconds as necessary.

9 is a view illustrating a flange width measurement by a digital gauge according to the present invention. After the flange height measurement is completed in the same manner as in FIG. 8, the measurer moves the second sliding block 510 horizontally along the horizontal bar 100 to bring the side contact piece 520 into close contact with the side of the flange. The width of the flange is measured by the distance the second sliding block 510 is moved and numerically displayed on the second digital display unit 512. When the second hold button 530 provided on the upper portion of the second sliding block 510 is pressed, the flange width measurement value displayed on the second digital display 512 is fixed. Accordingly, the second sliding block 510 Even if the position changes, the measured value can be displayed without change. In addition, the second digital display unit 512 may be provided with its own lighting, and may emit its own lighting for 5 seconds as needed.

When the above process is completed, the gauge is separated from the wheel, and the flange height and the flange width can be recorded as the numerical value displayed on each digital display is read.

10 is an exemplary diagram of qR value measurement using a digital gauge according to the present invention. The qR value indicates the flange gradient, that is, the slope of the flange, and the qR value is measured to confirm the degree of wear of the flange.

As shown in FIG. 10, qR is a point where an imaginary horizontal line C, which is spaced apart from the imaginary horizontal line B passing through the wheel diameter measurement reference point P, by 10 mm to 13 mm upwards, meets the side surface of the flange. It is defined as the distance value between (Q) and the point (R) where the imaginary horizontal line (D) which is spaced apart by 2 mm from the imaginary horizontal line (E) passing through the front end of the flange meets the side surface of the flange.

In order to measure the qR value, as shown in FIG. 10, the digital gauge is fixed to the wheel, and then the vertical sliding piece 420 is moved so that the upper contact piece 422 contacts the tip of the flange, and the first sliding block. The locking jaw 423 of the upper contact piece 422 is brought into contact with the side surface of the flange by moving 410. Since the locking jaw 423 according to the present invention protrudes downward from the surface of the upper contact tip 422 with a length of 2 mm, the point where the locking jaw 423 meets the side surface of the flange becomes R point. Meanwhile, the measurer moves the second sliding block 510 so that the side contact piece 520 contacts the side surface of the flange. Since the lower end of the side contact piece 520 according to the present invention is configured to be spaced 10 mm to 13 mm upward from the lower end of the support roller 320 at a vertical distance, the lower end of the side contact piece 520 and the side of the flange. The point of meeting becomes the Q point.

As described above, after setting the first sliding block 410 and the second sliding block 510, zero setting is performed using the zero button, and the digital gauge is separated. After separation, as shown in the circle of FIG. 10, when the second sliding block 510 is moved until the side contact piece 520 contacts the locking jaw 423, at this time, the second digital display unit 512. The numerical value displayed on the screen becomes the qR value.

So far, the configuration of the present invention has been described in detail with reference to preferred embodiments, but the scope of the present invention is not limited to the specific embodiments, should be interpreted based on the claims of the present invention, the implementation of the present invention Examples and practical equivalents will be included. In addition, those of ordinary skill in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

According to the present invention as described above, it is possible to block the error according to the fixed attachment to the wheel, the error due to the operation of the fixing bolt, the error due to the scale, the error according to the skill of the measurer, which is a disadvantage of the conventional scale gauge, the conventional digital It can eliminate the inconvenience of using the gauge due to its large structure and heavy weight, and can be used conveniently during the day and at night, taking advantage of the precision of measurement and the convenience of carrying, and measuring the qR value as well as the flange height and width. Has the possible advantages.

Claims (9)

A horizontal bar 100 extending in the horizontal direction; An inner side fixing part 200 connected to one end of the horizontal bar 100 and attached to an inner side of the wheel to support and fix the digital gauge; An outer circumferential surface fixing part 300 connected to the other end of the horizontal bar 100 and attached to an outer circumferential surface of the wheel to support and fix the horizontal bar 100 to be maintained in parallel with the virtual axis A passing through the center of the wheel; A first sliding block 410 slidably coupled to the horizontal bar 100 and having a first digital display unit 412 on the front surface thereof, and a first sliding block 410 sliding through the vertical sliding block 410 in a vertical direction. A flange height measuring part 400 having a movable vertical moving piece 420; A second sliding block 510 slidably coupled to the horizontal bar 100 and having a second digital display unit 512 on a front surface thereof, and a protrusion formed at a lower portion of the second sliding block 510. Wheel gauge digital gauge including a flange width measuring part 500 is provided with a side contact piece 520 in contact with the side of the flange in accordance with the movement of the two sliding block (510). The method of claim 1, The inner surface fixing part 200 is connected to one end of the horizontal bar 100 and extends vertically downward, and is provided inside the vertical bar 210 to contact the inner surface of the wheel. And a contact block (220) having a magnet (225) for attachment to the wheel in a central portion thereof. The method of claim 1, The outer circumferential surface fixing part 300 is connected to the other end of the horizontal bar 100 and extends vertically downward, and the fixed arm 310 is bent so that the end is directed toward the wheel diameter measurement reference point (P) of the outer peripheral surface of the wheel, and Wheel measuring digital gauge, characterized in that it comprises a pair of support rollers 320 are axially coupled to the outer end of the fixed arm 310 in contact with the wheel diameter measurement reference point (P). The method of claim 3, wherein The support roller 320 is a wheel gauge digital gauge characterized in that it has a magnet for attachment to the outer peripheral surface of the wheel. The method according to claim 3 or 4, The lower end portion of the vertical movable piece 420 is provided with an upper contact piece 422 contacted from the upper end of the flange, the upper contact piece 422 extends longer than the width of the vertical movable piece 420, Wheel end digital gauge, characterized in that the end is provided with a locking jaw (423) formed extending vertically. The method of claim 5, The lower end of the side contact piece 520 is positioned spaced apart from the lower end of the support roller 320 by a vertical distance upward 10mm ~ 13mm, the locking jaw 423 end of the upper contact piece 422 is the upper contact piece ( 422) Wheel gauge digital gauge, characterized in that formed to protrude 2mm in length downward from the surface to measure qR value. The method of claim 5, The upper end of the vertical movable piece 420 is supported on the front end of the first sliding block 410 in order to prevent the vertical movable piece 420 is completely separated from the first sliding block 410 when moving downward Wheel gauge digital gauge characterized in that it comprises a first stopper (425). The method according to any one of claims 1 to 4, The first sliding block 410 is provided with a first hold button 430 for temporarily fixing the measured value displayed on the first digital display unit 412, and the second sliding block 510 has a second digital display unit. Wheel gauge digital gauge, characterized in that provided with a second hold button (530) for temporarily fixing the measured value displayed on (512). The method according to any one of claims 1 to 4, The first digital display unit 412 and the second digital display unit 512 is a wheel gauge digital gauge, characterized in that the self-illumination is provided.

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