CN112013776A - Device and method for measuring camber of crane girder - Google Patents
Device and method for measuring camber of crane girder Download PDFInfo
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- CN112013776A CN112013776A CN202011085966.1A CN202011085966A CN112013776A CN 112013776 A CN112013776 A CN 112013776A CN 202011085966 A CN202011085966 A CN 202011085966A CN 112013776 A CN112013776 A CN 112013776A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/255—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures for measuring radius of curvature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
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Abstract
The invention provides a device and a method for measuring the camber of a crane girder, wherein the device for measuring the camber of the crane girder comprises the following components: the supporting assembly is arranged on the horizontal part of the crane main beam; the screw rod screw is arranged on the supporting component; the operation assembly is arranged on the lead screw rod and can ascend or descend along the lead screw rod; the horizontal laser ranging assembly is arranged on the operation assembly and used for measuring the distance between the horizontal laser ranging assembly and the upper arch part of the crane main beam in the horizontal direction; and the vertical laser ranging assembly is arranged on the operation assembly and used for measuring the distance between the vertical laser ranging assembly and the horizontal part of the crane main beam in the vertical direction. The technical scheme provided by the invention can improve the measurement efficiency and precision of the camber of the crane girder.
Description
Technical Field
The invention relates to a deformation measuring system of special equipment, in particular to a device and a method for measuring camber of a crane girder.
Background
The main beam is a main bearing component of the crane, the strength, the rigidity and the stability are important indexes for evaluating the working performance of the crane, the camber is one of key parameters for evaluating the rigidity performance of the crane, and the service performance and the service life of the crane are directly influenced by the detection result of the camber.
At present, a common method for measuring the camber of a crane girder is a steel wire drawing method, and the method comprises the following operations: firstly, selecting a steel wire with a certain diameter, straightening the steel wire on a main beam by a detector, fixing one end of the steel wire on a steel wire fixing wheel at one end of the main beam, and winding a pulley fixed at the other end of the main beam by the other end of the steel wire and hanging a heavy hammer; then, two ends of the main beam are respectively provided with an equal-height measuring rod, and the steel wire is pulled through the measuring rods; and then, measuring the distance values h1 and h2 from the upper surfaces of the span ends and the span middle cover plates of the main beam to the steel wires respectively by using steel plate rulers, wherein the difference value between h1 and h2 is the upward camber value of the main beam.
However, the steel wire drawing method has strict requirements on the diameter and the tension of the steel wire, and in addition, due to the influence of the self-weight deformation of the steel wire, the corresponding correction value of the self-weight influence of the steel wire needs to be deducted from the measurement data, and the manual measurement is easy to generate errors, so that the efficiency of measuring the camber on the main beam of the crane by the steel wire drawing method is low, and the precision is poor.
Therefore, a new device and method for measuring the camber of the crane main beam are needed to improve the efficiency and accuracy of measurement.
Disclosure of Invention
The invention aims to provide a device and a method for measuring the camber of a crane girder, which can improve the efficiency and the precision of the measurement of the camber of the crane girder and solve the problems of low efficiency and poor precision of manual measurement in the prior art.
In order to achieve the above object, the present invention provides an upper camber measuring device for a crane main beam, comprising:
the supporting assembly is arranged on the horizontal part of the crane main beam;
the screw rod screw is arranged on the supporting component;
the operation assembly is arranged on the lead screw rod and can ascend or descend along the lead screw rod;
the horizontal laser ranging assembly is arranged on the operation assembly and used for measuring the distance between the horizontal laser ranging assembly and the upper arch part of the crane main beam in the horizontal direction; and the number of the first and second groups,
and the vertical laser ranging assembly is arranged on the running assembly and used for measuring the distance between the vertical laser ranging assembly and the horizontal part of the crane main beam in the vertical direction.
Optionally, the support assembly includes an upper assembly, a middle assembly and a lower assembly, the upper assembly is connected to the lower assembly through the middle assembly, the top end of the lead screw is connected to the upper assembly, and the bottom end of the lead screw is connected to the lower assembly.
Optionally, a through hole is formed in the lower assembly, so that the vertical laser ranging assembly measures the distance between the vertical laser ranging assembly and the horizontal portion in the vertical direction through the through hole.
Optionally, the lower assembly is parallel to the horizontal portion, and the lead screw is perpendicular to the lower assembly.
Optionally, the support assembly further includes at least three magnetic feet, and all of the magnetic feet are uniformly disposed at the bottom end of the lower assembly and adsorbed on the horizontal portion.
Optionally, the operation assembly comprises a screw nut, a servo motor and a motor control module, the screw nut is connected with the outer ring of the screw rod through the threads of the inner ring, and the servo motor is respectively connected with the screw nut and the motor control module.
Optionally, the device for measuring camber of the crane girder further comprises a measured data processing module, and the measured data processing module is in signal connection with the horizontal laser ranging assembly, the vertical laser ranging assembly and the motor control module respectively.
Optionally, the device for measuring camber of the crane girder further comprises a terminal, and the terminal is in signal connection with the measured data processing module.
Optionally, the signal connection mode is wireless, bluetooth or infrared.
The invention also provides a method for measuring the camber of the crane girder, which comprises the following steps:
placing the camber measuring device on the crane girder on the horizontal part of the crane girder;
initially, arranging a running assembly on the upper part of a screw rod screw, measuring the horizontal distance between the horizontal laser ranging assembly and an upper arch part of the crane girder by adopting a horizontal laser ranging assembly arranged on the running assembly, and when laser emitted by the horizontal laser ranging assembly is not in contact with the top point of the upper arch part, measuring the horizontal distance to be larger than the span of the crane girder; and the number of the first and second groups,
and moving the operation assembly downwards, wherein when the laser emitted by the horizontal laser ranging assembly contacts the top point of the upper arch part, the measured horizontal distance is smaller than the span of the crane girder, the operation assembly stops moving, and the vertical distance between the vertical laser ranging assembly and the horizontal part, which is measured by the vertical laser ranging assembly arranged on the operation assembly, is the upper arch degree of the upper arch part of the crane girder.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
1. according to the device for measuring the camber of the crane girder, the horizontal laser ranging assembly and the vertical laser ranging assembly are arranged on the operation assembly, and the operation assembly can ascend or descend along the screw rod, so that the automatic measurement of the camber of the crane girder is realized, and compared with manual measurement, the efficiency and the accuracy of the measurement of the camber of the crane girder are improved.
2. According to the method for measuring the upper camber of the crane girder, provided by the invention, by utilizing the downward movement of the operation assembly, when the laser emitted by the horizontal laser ranging assembly contacts the top point of the upper camber of the crane girder, the vertical distance between the vertical laser ranging assembly and the horizontal part, which is measured by the vertical laser ranging assembly, is the upper camber of the crane girder, so that the measuring steps are simplified, the automatic measurement of the upper camber of the crane girder is realized, and the measuring efficiency and the measuring precision are improved compared with the manual measurement.
Drawings
FIG. 1 is a schematic front view of a crane girder camber measuring device according to an embodiment of the present invention;
FIG. 2 is a schematic side view of the camber measuring device on the crane girder shown in FIG. 1;
FIG. 3 is a schematic top view of the camber measuring device of the crane main beam shown in FIG. 1;
FIG. 4 is a schematic view of the camber measuring device shown in FIG. 1 at the beginning of a measurement;
fig. 5 is a schematic view showing the state of the camber measuring device on the crane main beam shown in fig. 1 when the measurement is completed.
Wherein the reference numerals of figures 1 to 5 are as follows:
1-a screw rod; 2-running the component; 3-a horizontal laser measurement assembly; 4-a vertical laser measurement assembly; 51-an upper assembly; 52-a middle assembly; 53-lower assembly; 6-through holes; 7-magnetic footing; 8-a horizontal section; 9-upper arch.
Detailed Description
In order to make the objects, advantages and features of the present invention more clear, the following describes the camber measuring device and method of the crane girder according to the present invention in detail with reference to fig. 1 to 5. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
An embodiment of the present invention provides an upper camber measuring device of a crane main beam, referring to fig. 1 to 5, as can be seen from fig. 1 to 5, the crane main beam includes a horizontal portion 8 and an upper camber 9, the upper camber measuring device of the crane main beam is configured to measure an upper camber of the crane main beam, that is, an upper camber of the upper camber 9 with respect to the horizontal portion 8, and the upper camber measuring device of the crane main beam includes: the supporting component is arranged on the horizontal part 8 of the crane main beam; the screw rod screw 1 is arranged on the supporting component; the operation assembly 2 is arranged on the lead screw 1, and the operation assembly 2 can ascend or descend along the lead screw 1; the horizontal laser ranging assembly 3 is arranged on the operation assembly 2, and the horizontal laser ranging assembly 3 is used for measuring the distance between the horizontal laser ranging assembly 3 and an upper arch 9 of the main beam of the crane in the horizontal direction; and the vertical laser ranging assembly 4 is arranged on the operation assembly 2, and the vertical laser ranging assembly 4 is used for measuring the distance between the vertical laser ranging assembly 4 and the horizontal part 8 of the main beam of the crane in the vertical direction.
The crane girder camber measuring device will be described in detail with reference to fig. 1 to 5:
the crane main beam comprises a horizontal part 8 and an upper arch part 9, wherein the horizontal part 8 can be positioned at two ends of the upper arch part 9, and the upper arch part 9 is arched relative to the horizontal plane of the horizontal part 8, so that measuring the upper arch degree of the upper arch part 9 relative to the horizontal part 8 is measuring the upper arch degree of the crane main beam.
The support assembly comprises an upper assembly 51, a middle assembly 52 and a lower assembly 53, wherein the upper assembly 51 and the lower assembly 53 are connected through the middle assembly 52, that is, the upper assembly 51 is arranged at the top end of the middle assembly 52, and the lower assembly 53 is arranged at the bottom end of the middle assembly. The transverse cross section of the upper member 51 and the lower member 53 may be circular, square or rectangular, and it should be noted that the transverse cross section of the upper member 51 and the lower member 53 is not limited to the above shape, and may be other regular planar shapes, such as hexagon, ellipse, etc. The height of the middle component 52 is the same as that of the lead screw 1, the cross section of the middle component 52 is in a hollow semicircular shape or a half square shape, the upper component 51, the middle component 52 and the lower component 53 enclose a cavity with an opening on one side, and the running component 2 ascends or descends along the lead screw 1 in the cavity.
The material of the support component can be wood, plastic and other insulating materials, or steel plates, iron plates and other metal materials, and the rigidity or hardness of the support component is large enough to ensure that the screw rod and the screw rod 1 are fixed on the support component.
The top end of the lead screw 1 is connected with the upper component 51, and the bottom end of the lead screw 1 is connected with the lower component 53. In addition, since the supporting component is disposed on the horizontal portion 8, the lead screw 1 is disposed on the supporting component, the lower component 53 is parallel to the horizontal portion 8, and the lead screw 1 is perpendicular to the lower component 53, it should be noted that the lower component 53 is a flat plate with uniform thickness, and then the lead screw 1 is perpendicular to the horizontal portion 8, so that the accuracy of the distance between the vertical laser ranging component 4 and the horizontal portion 8 in the vertical direction measured by the vertical laser ranging component 4 is better ensured, and the accuracy of the distance between the horizontal laser ranging component 3 and the upper arch portion 9 in the horizontal direction measured by the horizontal laser ranging component 3 is better ensured.
The support assembly further comprises at least three magnetic feet 7, and all the magnetic feet 7 are uniformly arranged at the bottom end of the lower assembly 53 and adsorbed on the horizontal portion 8, so that the position of the crane girder upper camber measuring device is fixed when the upper camber is measured, and the stability of the crane girder upper camber measuring device is ensured when the upper camber is measured. For example, when the number of the magnetic feet 7 is three, the three magnetic feet 7 form three vertices of an equilateral triangle, and are disposed on the bottom surface of the lower member 53; when the number of the magnetic feet 7 is four, the four magnetic feet 7 form four vertices of a square and are disposed on the bottom surface of the lower member 53.
The horizontal laser ranging assembly 3 can be arranged at the side of the running assembly 2 and faces to the opening side of the cavity enclosed by the upper assembly 51, the middle assembly 52 and the lower assembly 53, so that the horizontal laser ranging assembly 3 can emit laser in the horizontal direction towards the upper arch part 9 to measure the distance between the horizontal laser ranging assembly 3 and the upper arch part 9 in the horizontal direction; the vertical laser ranging assembly 4 may be disposed on a bottom surface of the operating assembly 2, so that the vertical laser ranging assembly 4 can emit laser downward in a vertical direction to measure a distance between the vertical laser ranging assembly 4 and the horizontal portion 8 of the crane main beam in the vertical direction. And the position of the horizontal laser ranging assembly 3 on the running assembly 2 is close to the position of the vertical laser ranging assembly 4 on the running assembly 2, and the horizontal laser ranging assembly 3 and the vertical laser ranging assembly 4 are close to the boundary of the side surface and the bottom surface of the running assembly 2, so as to ensure that when the laser emitted by the horizontal laser ranging assembly 3 contacts the top point of the upper arch part 9, the vertical distance between the vertical laser ranging assembly 4 and the horizontal part 8 measured by the vertical laser ranging assembly 4 is the upper arch degree of the upper arch part 9 of the crane girder.
In addition, a through hole 6 is formed on the lower component 53, so that the laser emitted by the vertical laser ranging component 4 can pass through the through hole 6 to reach the horizontal portion 8, and further the distance between the vertical laser ranging component 4 and the horizontal portion 8 in the vertical direction is measured. The through hole 6 can be a round hole, a square hole or other shapes.
Moreover, since the operating assembly 2 can ascend or descend along the screw rod 1, the horizontal laser ranging assembly 3 is disposed on the operating assembly 2, and the vertical laser ranging assembly 4 is disposed on the operating assembly 2, the operating assembly 2 can drive the horizontal laser ranging assembly 3 and the vertical laser ranging assembly 4 to ascend or descend along the screw rod 1 together. As shown in fig. 4, when the upper camber starts to be measured, the operating assembly 2 is disposed on the upper portion of the screw rod 1, at this time, the laser emitted by the horizontal laser ranging assembly 3 does not contact the top of the upper camber 9, and the horizontal distance between the horizontal laser ranging assembly 3 and the upper camber 9 measured by the horizontal laser ranging assembly 3 is greater than the span S of the crane main beam, then the operating assembly 2 continues to move downward; when the operating assembly 2 moves downwards until the laser emitted by the horizontal laser ranging assembly 3 contacts the top of the upper arch part 9, as shown in fig. 5, the operating assembly 2 stops moving, the horizontal distance measured by the horizontal laser ranging assembly 3 is smaller than the span S of the crane girder, and at this time, the vertical distance H between the vertical laser ranging assembly 4 and the horizontal part 8 measured by the vertical laser ranging assembly 4 is the upper arch degree of the upper arch part 9 of the crane girder. And, in the process that the running assembly 2 moves downwards, the horizontal laser ranging assembly 3 and the vertical laser ranging assembly 4 can measure corresponding horizontal distance and vertical distance in real time, so as to ensure that the upper camber of the upper camber 9 can be measured quickly.
In addition, the operation assembly 2 includes a screw nut (not shown), a servo motor (not shown) and a motor control module (not shown), the screw nut is connected with the outer ring of the screw rod 1 through the thread of the inner ring, and the servo motor is respectively connected with the screw nut and the motor control module. The operation assembly 2 can ascend or descend along the screw rod 1, specifically, the motor control module can control the servo motor to rotate forwards or backwards, so that the servo motor drives the screw rod nut to rotate forwards or backwards, and the operation assembly 2 ascends or descends.
The device for measuring the camber of the crane girder further comprises a measured data processing module (not shown), wherein the measured data processing module is in signal connection with the horizontal laser ranging assembly 3, the vertical laser ranging assembly 4 and the motor control module respectively. The measurement data processing module can receive measurement data of the horizontal laser ranging assembly 3 in the horizontal direction and measurement data of the vertical laser ranging assembly 4 in the vertical direction, and generates control data of the servo motor according to data of the span S of the crane main beam and the measurement data in the horizontal direction, and sends the control data to the motor control module, so that the motor control module controls forward rotation or reverse rotation of the servo motor, and then controls rising or falling of the operation assembly 2.
Further, the crane girder camber measuring device further comprises a terminal (not shown), and the terminal is in signal connection with the measured data processing module. Specifically, the terminal may be a computer, and a user of the crane main beam camber measuring device may input data of the span S of the crane main beam through the computer and send the data to the measured data processing module through the computer, and in addition, the computer may further receive, display and record the measured data in the horizontal direction and the measured data in the vertical direction sent by the measured data processing module. And the final camber measurement data H of the camber measurement device on the crane girder can also be displayed on the computer screen for a user to check.
The signal connection mode can be wireless, Bluetooth or infrared.
In addition, control chips are arranged in the motor control module, the measurement data processing module and the terminal, and the control chips are all of the existing chip types, such as the types of TMS320, XC6SLX16 and SA 60.
In summary, the device for measuring the camber of the crane girder provided by the invention comprises a supporting component arranged on the horizontal part; the screw rod screw is arranged on the supporting component; the operation assembly is arranged on the lead screw rod and can ascend or descend along the lead screw rod; the horizontal laser ranging assembly is arranged on the operating assembly and used for measuring the distance between the horizontal laser ranging assembly and the upper arch part in the horizontal direction; and the vertical laser ranging assembly is arranged on the operation assembly and used for measuring the distance between the vertical laser ranging assembly and the horizontal part in the vertical direction. The device for measuring the camber of the crane girder provided by the invention realizes automatic measurement of the camber of the crane girder, and improves the measurement efficiency and the measurement precision compared with manual measurement.
An embodiment of the present invention further provides a method for measuring an upper camber of a crane main beam, referring to fig. 4 and 5, the method for measuring an upper camber of a crane main beam includes:
first, the crane girder upper camber measuring device is placed on the horizontal portion 8 of the crane girder. The structure of the camber measuring device on the crane girder is referred to the above content, and is not described herein again.
Then, as shown in fig. 4, initially, a running component 2 is arranged on the upper portion of the screw rod 1, a horizontal laser ranging component 3 arranged on the running component 2 is used for measuring the horizontal distance between the horizontal laser ranging component 3 and the upper arch portion 9 of the crane girder, and when the laser emitted by the horizontal laser ranging component 3 does not contact the top point of the upper arch portion 9, the horizontal distance measured by the horizontal laser ranging component 3 is greater than the span S of the crane girder.
Next, the operating assembly 2 is moved downwards, when the laser emitted from the horizontal laser ranging assembly 3 contacts the top of the upper arch 9, as shown in fig. 5, the measured horizontal distance is smaller than the span S of the crane main beam, the operating assembly 2 stops moving, and the vertical distance between the vertical laser ranging assembly 4 and the horizontal portion 8 of the crane main beam, measured by the vertical laser ranging assembly 4 disposed on the operating assembly 2, is the upper arch of the upper arch 9.
Specifically, during initial state, the laser of horizontal laser rangefinder subassembly 3 transmission does not contact last hunch portion 9, at this moment, from the terminal input the span S of crane girder starts the automatic measure process, the terminal sends span S to measured data processing module, just measured data processing module receives horizontal distance under the initial state that horizontal laser rangefinder subassembly 3 surveyed is greater than the span S of crane girder, measured data processing module sends the control signal of downward motion for motor control module on the running component 2, motor control module control servo motor drives running component 2 moves down. And, in the process of the downward movement of the operating assembly 2, the horizontal laser ranging assembly 3 transmits the measured data to the measured data processing module in real time.
When the operating assembly 2 moves downwards until the laser emitted by the horizontal laser ranging assembly 3 contacts the top point (i.e. the highest position) of the upper arch part 9 of the crane girder, the horizontal distance measured by the horizontal laser ranging component 3 is smaller than the span S of the crane girder, the measured data processing module sends a control signal for stopping movement to the motor control module, the motor control module controls the servo motor to stop moving, so that the running component 2 stops moving, at the moment, the vertical distance between the vertical laser ranging assembly 4 and the horizontal part 8 of the main girder of the crane measured by the vertical laser ranging assembly 4 is the upper camber of the upper camber 9, and the measurement data processing module sends the horizontal distance measured by the horizontal laser ranging assembly 3 and the vertical distance measured by the vertical laser ranging assembly 4 to the terminal.
According to the method for measuring the camber of the crane girder, the measuring steps are simplified, the automatic measurement of the camber of the crane girder is realized, and the measuring efficiency and the measuring precision are improved compared with manual measurement.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides an arch degree measuring device on hoist girder, hoist girder include horizontal part and last arch portion, the last arch degree measuring device of hoist girder is used for measuring the last arch degree of last arch portion, its characterized in that, the last arch degree measuring device of hoist girder includes:
the supporting component is arranged on the horizontal part;
the screw rod screw is arranged on the supporting component;
the operation assembly is arranged on the lead screw rod and can ascend or descend along the lead screw rod;
the horizontal laser ranging assembly is arranged on the operating assembly and used for measuring the distance between the horizontal laser ranging assembly and the upper arch part in the horizontal direction; and the number of the first and second groups,
and the vertical laser ranging assembly is arranged on the operation assembly and is used for measuring the distance between the vertical laser ranging assembly and the horizontal part in the vertical direction.
2. The crane girder camber measuring device according to claim 1, wherein the support assembly includes an upper assembly, a middle assembly, and a lower assembly, the upper assembly and the lower assembly being connected by the middle assembly, a top end of the lead screw being connected to the upper assembly, and a bottom end of the lead screw being connected to the lower assembly.
3. The crane girder camber measuring device according to claim 2, wherein the lower assembly has a through hole formed therein, so that the vertical laser ranging assembly measures a distance between the vertical laser ranging assembly and the horizontal portion in a vertical direction through the through hole.
4. The crane girder camber measuring device of claim 2, wherein the lower assembly is parallel to the horizontal portion and the lead screw is perpendicular to the lower assembly.
5. The crane girder camber measuring device according to claim 2, wherein the support assembly further includes at least three magnetic feet, all of the magnetic feet being uniformly disposed at the bottom end of the lower assembly and being attached to the horizontal portion.
6. The crane girder camber measuring device according to claim 1, wherein the operating assembly includes a screw nut, a servo motor, and a motor control module, the screw nut is connected to an outer ring of the screw rod through threads of an inner ring, and the servo motor is connected to the screw nut and the motor control module, respectively.
7. The crane girder camber measuring device according to claim 6, further comprising a measurement data processing module in signal connection with the horizontal laser ranging assembly, the vertical laser ranging assembly, and the motor control module, respectively.
8. The crane girder camber measuring device according to claim 7, wherein the crane girder camber measuring device further comprises a terminal in signal connection with the measurement data processing module.
9. The crane girder camber measuring device according to claim 8, wherein the signal connection is wireless, bluetooth or infrared.
10. A method for measuring camber of a crane girder is characterized by comprising the following steps:
placing the camber measuring device on the crane girder on the horizontal part of the crane girder;
initially, arranging a running assembly on the upper part of a screw rod screw, measuring the horizontal distance between the horizontal laser ranging assembly and an upper arch part of the crane girder by adopting a horizontal laser ranging assembly arranged on the running assembly, and when laser emitted by the horizontal laser ranging assembly is not in contact with the top point of the upper arch part, measuring the horizontal distance to be larger than the span of the crane girder; and the number of the first and second groups,
and moving the operation assembly downwards, wherein when the laser emitted by the horizontal laser ranging assembly contacts the top point of the upper arch part, the measured horizontal distance is smaller than the span of the crane girder, the operation assembly stops moving, and the vertical distance between the vertical laser ranging assembly and the horizontal part, which is measured by the vertical laser ranging assembly arranged on the operation assembly, is the upper arch degree of the upper arch part of the crane girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011085966.1A CN112013776A (en) | 2020-10-12 | 2020-10-12 | Device and method for measuring camber of crane girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011085966.1A CN112013776A (en) | 2020-10-12 | 2020-10-12 | Device and method for measuring camber of crane girder |
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| CN112013776A true CN112013776A (en) | 2020-12-01 |
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| CN202011085966.1A Pending CN112013776A (en) | 2020-10-12 | 2020-10-12 | Device and method for measuring camber of crane girder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124769A (en) * | 2021-04-07 | 2021-07-16 | 西安热工研究院有限公司 | Method for measuring camber of large plate girder |
| CN115824539A (en) * | 2023-02-14 | 2023-03-21 | 滨州市特种设备检验研究院 | Large plate girder deflection measuring system |
-
2020
- 2020-10-12 CN CN202011085966.1A patent/CN112013776A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124769A (en) * | 2021-04-07 | 2021-07-16 | 西安热工研究院有限公司 | Method for measuring camber of large plate girder |
| CN113124769B (en) * | 2021-04-07 | 2024-05-07 | 西安热工研究院有限公司 | Method for measuring camber of girder |
| CN115824539A (en) * | 2023-02-14 | 2023-03-21 | 滨州市特种设备检验研究院 | Large plate girder deflection measuring system |
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