CN110482407B - Device for measuring track center line of crane - Google Patents
Device for measuring track center line of crane Download PDFInfo
- Publication number
- CN110482407B CN110482407B CN201910717992.2A CN201910717992A CN110482407B CN 110482407 B CN110482407 B CN 110482407B CN 201910717992 A CN201910717992 A CN 201910717992A CN 110482407 B CN110482407 B CN 110482407B
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- Prior art keywords
- measuring
- connecting piece
- piece
- track
- crane
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- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 229920005372 Plexiglas® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
Abstract
The invention is suitable for the technical field of engineering measurement, and provides a device for measuring a track center line of a crane, which comprises a measuring track and a measuring assembly for measuring the track center line, wherein the measuring assembly comprises a connecting piece, a positioning piece and a rotating shaft, the connecting piece is positioned on the upper surface of a top flange, the positioning piece is three identical parts, the positioning piece is connected with the shaft where the connecting piece is positioned in a stringing way, the connecting piece and the positioning piece are connected through the rotating shaft, the three positioning pieces are positioned on the same level when clamping a web, and the connecting piece and the positioning piece are arranged so that the position where the connecting piece is positioned is the position of the track center line when the positioning piece is contacted with the web; therefore, whether the upper flange of the track is a horizontal plane or not is solved, and the device can accurately and quickly determine the position of the central line of the track.
Description
Technical Field
The invention belongs to the technical field of engineering measurement, and particularly relates to a device for measuring a crane track center line.
Background
The bridge crane in the industrial field is a carrier running along a fixed line, the crane can finish the longitudinal and transverse transportation of the crane in the factory building through the running of the bridge crane, the rail is an important component part of the bridge crane, the flatness and the track gauge of the rail are required to be measured when the rail is maintained and worn to a certain extent during the first installation and the use, only the flatness and the track gauge of the rail matched with the crane can reduce the wear of the crane wheels so as to prolong the service life of the crane wheels, and the rail biting force (the rail biting of the crane is a 'stubborn disease' of the industrial factory building) caused by the mismatch between the crane wheels and the rail is reduced so as to reduce the fatigue crack and damage phenomenon of the crane beam;
the flatness and the track gauge of the track are regularly measured and correspondingly adjusted, so that the method has great significance for prolonging the service life of crane wheels and reducing fatigue cracking of crane beams. In the process of determining the flatness and the track gauge of the crane track, the primary task is to determine the central lines of the upper surfaces of the two rows of the same-span tracks respectively, determine the flatness of the central lines of the two rows of the same-span tracks respectively, and then compare the central lines of the two rows of the same-span tracks with the central lines of adjacent tracks to determine the track gauge. The obtained track flatness and track gauge data are rechecked and correspondingly adjusted with the flatness and track gauge required by the crane.
The prior art method for measuring flatness and track gauge comprises the steps of firstly determining a midpoint on the upper surface of a rail upper flange by using a tape measure, wherein the rail upper flange is an arc-shaped surface, and the two sides of the rail upper flange in use are subject to asymmetric abrasion, namely the abrasion degree of the two sides of the upper flange is asymmetric, so that the midpoint on the surface of the upper flange is measured by using the tape measure, and the flatness and track gauge which meet the requirements and are matched with a crane cannot be obtained.
Disclosure of Invention
The invention provides a device for measuring the center line of a crane track, which aims to solve the problems that in the prior art, a measuring tape is used for determining a midpoint on the upper surface of a wing plate, and the track in use is asymmetrically worn, namely the wear degree of two sides of an upper flange is asymmetrical, so that the midpoint on the wing plate is measured by the measuring tape, so that great errors exist, and the flatness and the track gauge which meet the requirements and are matched with a crane cannot be obtained.
The invention is realized in that the device for measuring the track center line of the crane comprises a measuring track and a measuring assembly for measuring the track center line, wherein the track comprises a lower flange, a web plate and an upper flange, the lower flange and the upper flange are arranged in parallel, and the web plate is vertically and fixedly connected between the lower flange and the upper flange;
the measuring assembly comprises a connecting piece, a positioning piece and a rotating shaft, wherein the connecting piece is positioned on the upper surface of the upper flange, the positioning piece is three identical parts, the positioning piece is connected with the shaft of the connecting piece in series, and the connecting piece is connected with the positioning piece through the rotating shaft.
Preferably, the fixing piece is arranged at one end of the locating piece far away from the connecting piece, the fixing piece and the locating piece are of an integrated structure, and the three fixing pieces are arranged on the same level when clamping the web plate.
Preferably, the connecting piece is acrylic organic glass.
Preferably, the positioning piece is semi-circular arc-shaped.
Preferably, the connecting piece is further provided with a measuring device, and the measuring device is fixedly connected with the connecting piece.
Preferably, the connecting piece is fixedly connected with the measuring device vertically.
Preferably, the measuring device is rectangular in shape.
Preferably, the front and rear surfaces of the measuring device are provided with scale marks.
Preferably, the scale mark zero scale on the measuring device is at a middle position thereof.
Compared with the prior art, the invention has the beneficial effects that: by arranging the connecting piece and the positioning piece, when the positioning piece is in contact with the web, the position of the connecting piece is the position of the central line of the track, namely, the central line of the upper flange and the central line of the web are on the same plumb line in consideration of the symmetrical section of the track about the Y axis, and the central line which is difficult to accurately measure on the upper flange of the track originally can be obtained by determining the central line of the web; by arranging the measuring device, operators can further measure the corresponding positions on the central line by means of a level gauge and a total station, and the flatness of the respective tracks and the track gauge between the two same-span tracks can be measured through calculation.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is an enlarged view of the positioning member and the connecting member of the present invention;
fig. 4 is an enlarged front view of embodiment 2 of the present invention;
FIG. 5 is a side view of embodiment 2 of the present invention;
in the figure: 1-track, 11-lower flange, 12-web, 13-upper flange, 2-measuring assembly, 21-connecting piece, 22-locating piece, 23-pivot, 24-mounting, 25-measuring device, 26-scale mark.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, in the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Example 1
Referring to fig. 1-3, a device for measuring a center line of a crane track comprises a measuring track 1 and a measuring assembly 2 for measuring the center line of the track 1, wherein the track 1 comprises a lower flange 11, a web 12 and an upper flange 13, the lower flange 11 and the upper flange 13 are arranged in parallel, and the web 12 is vertically and fixedly connected between the lower flange 11 and the upper flange 13;
the measuring assembly 2 comprises a connecting piece 21, positioning pieces 22 and a rotating shaft 23, wherein the connecting piece 21 is positioned on the upper surface of the upper flange 13, the number of the positioning pieces 22 is three, the positioning pieces 22 are positioned on the outer side wall of the connecting piece 21, and the connecting piece 21 and the positioning pieces 22 are connected through the rotating shaft 23.
In the present embodiment, the flanges are located on the outer sides of the flanges 11, and since the upper flanges of the track are arc-shaped and worn, the measurement base surface is not suitable, so the middle point of the upper flanges of the track is determined by directly measuring the middle point of the web below the upper flanges of the track by bypassing the upper flanges of the track; this is because the tracks are symmetrical cross sections along the Y-axis, with the midpoints all on the Y-axis; so that the measurement points are determined along this rule across both columns of tracks, there is comparability.
In this embodiment, the positioning member 22 and the connecting member 21 are assembled, and then the web 12 is clamped, and when the three fixing members 24 on the device are in contact with the web 12 and the three fixing members 24 are on the same level, the position of the connecting member 21 is the center line position of the rail, so that the device can accurately and quickly determine the center line position of the rail regardless of whether the upper flange of the rail is a horizontal plane or not.
Example 2
Referring to fig. 4-5, in the embodiment, the measuring device 25 is fixedly mounted on the connecting member 21, when three fixing members 24 on the device are in contact with the web 12 and the three fixing members 24 are on the same level, the connecting member 21 is located at the center line of the rail, then the leveling instrument is mounted at the front or rear far from the rail 1, so that the operator calculates the flatness by the leveling instrument, firstly levels the leveling instrument, adjusts the horizontal brake hand wheel until the leveling instrument is overlapped, views the first datum point to be measured through the telescope in the leveling instrument and obtains the value through the scale mark 26, then slides the measuring device 25 leftwards or rightwards according to the requirement of the operator, determines the second datum point, views the second datum point through the telescope in the leveling instrument and obtains the value through the scale mark 26, and subtracts the value of the first datum point from the value of the second datum point, thereby obtaining the flatness.
Further, a fixing piece 24 is arranged at one end of the positioning piece 22 far away from the connecting piece 21, the fixing piece 24 and the positioning piece 22 are of an integrated structure, and the three fixing pieces 24 are on the same level when clamping the web 12.
In this embodiment, the fixing piece 24 is disposed at one end of the positioning piece 22 far away from the connecting piece 21, so that the contact area between the fixing piece 24 and the web 12 is increased, and the position of the central line can be obtained quickly and accurately, the fixing piece 24 and the positioning piece 22 are connected reliably by providing an integrally formed structure, and the web 12 is clamped by three fixing pieces 24 at the same level, so that the position of the connecting piece 21 is the track central line when the web 12 is clamped by the fixing piece 24.
Further, the connecting member 21 is acrylic plexiglas.
In the present embodiment, by providing the connection member 21 as acrylic organic glass, the connection member 21 is made to have excellent light transmittance and the acrylic organic glass is high in mechanical strength, so that it is not easy to be damaged, and it is possible to more easily view the center line of the track 1.
Further, the positioning member 22 has a semicircular arc shape.
In the present embodiment, since the track 1 has an arc structure, the positioning member 22 is provided with a semicircular arc shape, so that the web 12 is more easily clamped by the positioning member 22, and the measurement accuracy is higher.
Further, the connecting piece 21 is further provided with a measuring device 25, and the measuring device 25 is fixedly connected with the connecting piece 21.
In the present embodiment, the measuring device 25 is arranged such that the fixing member 24 is clamped to the web 12, and the position of the measuring device 25 is a point on the center of the rail 1.
Further, the connecting piece 21 is fixedly connected with the measuring device 25 vertically.
In this embodiment, the connecting piece 21 and the measuring device 25 are vertically and fixedly connected, so that an operator can use the level gauge to more conveniently locate the reference center.
Further, the measuring device 25 has a rectangular shape.
In this embodiment, the measuring device 25 is rectangular in shape, so that the fixing member 24 is clamped on the web 12, and the position of the measuring device 25 is a point on the center of the track 1, and reading on the measuring device 25 is also facilitated.
Further, the front and rear surfaces of the measuring device 25 are provided with scale marks 26.
In the present embodiment, the flatness is obtained by setting the scale marks 26 such that an operator calculates flatness by a level, views a first reference point to be measured by a telescope in the level, obtains a value by the scale marks 26, then slides the measuring device 25 to the left or right, determines a second reference point, views the second reference point by the telescope in the level, obtains a value by the scale marks 26, and subtracts the value of the first reference point from the value of the second reference point.
Further, the scale mark 26 on the measuring device 25 is zero-scaled at its intermediate position.
In this embodiment, the zero scale of the scale mark 26 on the measuring device 25 is set at the middle position, so that a datum point is provided for the level, and the error of reading is prevented.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (9)
1. Device for measuring the centre line of a crane rail, comprising a measuring rail (1) and a measuring assembly (2) for measuring the centre line of the rail (1), characterized in that: the measuring track (1) comprises a lower flange (11), a web (12) and an upper flange (13), wherein the lower flange (11) and the upper flange (13) are arranged in parallel, and the web (12) is vertically and fixedly connected between the lower flange (11) and the upper flange (13);
the measuring assembly (2) comprises a connecting piece (21), a positioning piece (22) and a rotating shaft (23), wherein the connecting piece (21) is positioned on the upper surface of the upper flange (13), the number of the positioning pieces (22) is three, the positioning pieces (22) are positioned on the outer side wall of the connecting piece (21), and the connecting piece (21) and the positioning pieces (22) are connected through the rotating shaft (23).
2. An apparatus for measuring a crane rail centerline as claimed in claim 1, wherein: the locating piece (22) is far away from be provided with mounting (24) on the one end of connecting piece (21), mounting (24) with locating piece (22) are integrated into one piece structure, three mounting (24) centre gripping web (12) are on same level.
3. An apparatus for measuring a crane rail centerline as claimed in claim 1, wherein: the connecting piece (21) is acrylic organic glass.
4. An apparatus for measuring a crane rail centerline as claimed in claim 1, wherein: the positioning piece (22) is in a semicircular arc shape.
5. An apparatus for measuring a crane rail centerline as claimed in claim 1, wherein: the connecting piece (21) is further provided with a measuring device (25), and the measuring device (25) is fixedly connected with the connecting piece (21).
6. An apparatus for measuring a crane rail centerline as claimed in claim 5, wherein: the connecting piece (21) is vertically and fixedly connected with the measuring device (25).
7. An apparatus for measuring a crane rail centerline as defined in claim 6 wherein: the measuring device (25) is rectangular in shape.
8. An apparatus for measuring a crane rail centerline as claimed in claim 7, wherein: the front and rear surfaces of the measuring device (25) are provided with scale marks (26).
9. An apparatus for measuring a crane rail centerline as claimed in claim 8, wherein: the scale mark (26) on the measuring device (25) is zero scale at its intermediate position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910717992.2A CN110482407B (en) | 2019-08-05 | 2019-08-05 | Device for measuring track center line of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910717992.2A CN110482407B (en) | 2019-08-05 | 2019-08-05 | Device for measuring track center line of crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110482407A CN110482407A (en) | 2019-11-22 |
| CN110482407B true CN110482407B (en) | 2024-04-12 |
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ID=68549467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910717992.2A Active CN110482407B (en) | 2019-08-05 | 2019-08-05 | Device for measuring track center line of crane |
Country Status (1)
| Country | Link |
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| CN (1) | CN110482407B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395690A (en) * | 2013-08-19 | 2013-11-20 | 谢合清 | Light-weight solid-web I-shaped steel crane girder |
| CN203428753U (en) * | 2013-08-19 | 2014-02-12 | 谢合清 | Light-weight solid-web I-shaped steel crane girder |
| CN104535039A (en) * | 2014-12-16 | 2015-04-22 | 中冶建筑研究总院有限公司 | Crane beam track eccentricity measurement device and method |
| CN211619787U (en) * | 2019-08-05 | 2020-10-02 | 中冶建筑研究总院有限公司 | Device for measuring central line of crane track |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020157269A1 (en) * | 2001-04-26 | 2002-10-31 | Caudle James T. | Measuring instrument |
-
2019
- 2019-08-05 CN CN201910717992.2A patent/CN110482407B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395690A (en) * | 2013-08-19 | 2013-11-20 | 谢合清 | Light-weight solid-web I-shaped steel crane girder |
| CN203428753U (en) * | 2013-08-19 | 2014-02-12 | 谢合清 | Light-weight solid-web I-shaped steel crane girder |
| CN104535039A (en) * | 2014-12-16 | 2015-04-22 | 中冶建筑研究总院有限公司 | Crane beam track eccentricity measurement device and method |
| CN211619787U (en) * | 2019-08-05 | 2020-10-02 | 中冶建筑研究总院有限公司 | Device for measuring central line of crane track |
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| Publication number | Publication date |
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| CN110482407A (en) | 2019-11-22 |
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