CN113865501A - Device and method for measuring deformation of metal structure of hoisting machinery - Google Patents
Device and method for measuring deformation of metal structure of hoisting machinery Download PDFInfo
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- CN113865501A CN113865501A CN202111253689.5A CN202111253689A CN113865501A CN 113865501 A CN113865501 A CN 113865501A CN 202111253689 A CN202111253689 A CN 202111253689A CN 113865501 A CN113865501 A CN 113865501A
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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
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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Abstract
本发明涉及一种起重机械金属结构形变测量装置及方法，该装置包括支撑架、距离测量模块(1)、旋转驱动模块，所述的距离测量模块(1)上安装有两个测距传感器，分别为第一测距传感器(11)和第二测距传感器(12)，所述的两个测距传感器的测距方向之间的夹角为90°，所述的第一测距传感器(11)上设有用于测量该测距传感器与铅垂线之间倾斜角度的倾角传感器，所述的距离测量模块(1)通过旋转驱动模块安装在支撑架上，所述的支撑架用于将所述的距离测量模块(1)水平架设在待测金属结构(4)表面上方位置，所述的测距传感器、倾角传感器和旋转驱动模块均连接至控制器。与现有技术相比，本发明具有测量精度高、测量速度快等优点。
The invention relates to a device and method for measuring deformation of a metal structure of a hoisting machine. The device comprises a support frame, a distance measurement module (1), and a rotary drive module, and two distance measurement sensors are installed on the distance measurement module (1). , respectively a first ranging sensor (11) and a second ranging sensor (12), the angle between the ranging directions of the two ranging sensors is 90°, and the first ranging sensor (11) is provided with an inclination sensor for measuring the inclination angle between the distance measuring sensor and the plumb line, and the distance measurement module (1) is mounted on a support frame through a rotary drive module, and the support frame is used for The distance measuring module (1) is horizontally erected above the surface of the metal structure (4) to be measured, and the distance measuring sensor, the inclination sensor and the rotation driving module are all connected to the controller. Compared with the prior art, the present invention has the advantages of high measurement accuracy, fast measurement speed and the like.
Description
Technical Field
The invention relates to a hoisting machine measuring device and method, in particular to a hoisting machine metal structure deformation measuring device and method.
Background
The main beam of hoisting machinery and the like mostly adopts a box-shaped metal structure, and the deformation of the main beam needs to be measured in order to obtain the health condition of the hoisting machinery structure. In the existing method, manual segmentation marking is adopted, and then measurement is carried out segment by segment. When the measuring object is large and the measuring point is not easy to reach, the measuring efficiency is low and the precision is poor.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a device and a method for measuring the deformation of a metal structure of a hoisting machine.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a lifting machinery metal structure deformation measuring device, the device includes support frame, distance measurement module, rotation driving module, distance measurement module on install two distance measuring sensor, be first distance measuring sensor and second distance measuring sensor respectively, two distance measuring sensor's range finding angle between the direction be 90, first distance measuring sensor on be equipped with and be used for measuring inclination's between this distance measuring sensor and the plumb line inclination sensor, distance measurement module install on the support frame through rotation driving module, the support frame be used for with distance measurement module level frame establish at the metal structure surface top position that awaits measuring, distance measuring sensor, inclination sensor and rotation driving module all be connected to the controller.
Preferably, the distance measuring sensor comprises a laser distance measuring sensor.
Preferably, the rotation driving module comprises a rotating rod and a motor, the rotating rod is horizontally arranged on the support frame through a bearing, a rotating shaft of the motor is connected with the rotating rod, the distance measuring module is fixed on the rotating rod, and the motor is connected with the controller.
Preferably, the motor comprises a servo motor.
Preferably, the support frame include top backup pad, lateral part support and adjustable landing leg, the lateral part support set up two, fix respectively and form the frame structure in top backup pad below both sides, adjustable landing leg install the bottom of lateral part support and be used for adjusting the whole levelness of support frame, the transfer line rotate to be installed between two lateral part supports, the transfer line with the top backup pad parallel.
Preferably, the adjustable legs comprise magnetic legs and adjustable bolts, and the magnetic legs are mounted at the bottom of the side support through the adjustable bolts.
Preferably, the top support plate is provided with a level for measuring levelness.
Preferably, the number of the adjustable legs is three, two of the adjustable legs are arranged below one side support, the other adjustable leg is arranged below the other side support, and the three adjustable legs form an isosceles triangle distribution form.
A method for measuring the deformation of a metal structure of a hoisting machine is based on the deformation measuring device and comprises the following steps:
fixing the position of the support frame, and adjusting the initial position of the distance measuring module to enable the distance measuring direction of the first distance measuring sensor to be vertically downward along the plumb line direction, and the distance measuring direction of the second distance measuring sensor to be the horizontal direction;
the controller sends a control signal to control the rotation driving module to move, the rotation driving module drives the distance measuring module to rotate until the rotation driving module rotates by an angle of 90 degrees, and the distance measuring module receives ranging data of the first ranging sensor and the second ranging sensor and inclination angle data of the inclination angle sensor in real time in the rotating process;
the controller acquires the position information of a measuring point on the surface of the metal structure to be measured according to the acquired distance measurement data and the acquired inclination angle data, wherein the position information comprises the horizontal distance and the vertical distance between the measuring point and the central point of the distance measuring module, and the deformation condition of the surface of the metal structure is further determined;
preferably, the distance measurement data of the first distance measurement sensor is recorded as L11, L12, L13, … …, L1n, the distance measurement data of the second distance measurement sensor is recorded as L21, L22, L23, ·, L2n, the tilt angle data of the tilt angle sensor is recorded as θ 1, θ 2, θ 3, … …, θ n;
calculating to obtain the position information of a measuring point Ai corresponding to the first ranging sensor and a measuring point Bi corresponding to the second ranging sensor: d1i ═ L1i · sin θ i, H1i ═ L1i · cos θ i, D2i ═ L2i · cos θ i, H2i ═ L2i · sin θ i, D1i is the horizontal distance between the measurement point Ai and the measurement module center point, H1i is the vertical distance between the measurement point Ai and the measurement module center point, D2i is the horizontal distance between the measurement point Bi and the measurement module center point, H2i is the vertical distance between the measurement point Bi and the measurement module center point, i ═ 1, 2, … …, n;
the measurement points where the deformation occurred and the corresponding positions were determined based on H1i, H2i, D1i, D2 i.
Compared with the prior art, the invention has the following advantages:
(1) the invention adopts the distance measuring sensor to measure the distances at both sides of the metal structure, simultaneously measures the inclination angle of the distance measuring sensor, and quickly determines the deformation condition of the surface of the metal structure by converting the position information of the measuring point on the surface of the metal structure (including the horizontal distance and the vertical distance between the measuring point and the central point of the distance sensor), thereby having high measuring precision and high speed;
(2) the invention adopts a double-laser ranging mode to measure the distance, thereby ensuring the measurement precision.
Drawings
FIG. 1 is a front view of a device for measuring the deformation of a metal structure of a hoisting machine according to the present invention;
FIG. 2 is a side view of a device for measuring the deformation of a metal structure of a hoisting machine according to the present invention;
fig. 3 is a measuring schematic diagram of a hoisting machinery metal structure deformation measuring device of the present invention.
In the figure, 1 is a distance measuring module, 11 is a first distance measuring sensor, 12 is a second distance measuring sensor, 21 is a rotating rod, 22 is a motor, 31 is a top support plate, 32 is a side support, 33 is an adjustable supporting leg, and 4 is a metal structure to be measured.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. Note that the following description of the embodiments is merely a substantial example, and the present invention is not intended to be limited to the application or the use thereof, and is not limited to the following embodiments.
Examples
As shown in fig. 1 and fig. 2, this embodiment provides a hoisting machinery metal structure deformation measuring device, which includes a supporting frame, a distance measuring module 1, and a rotation driving module, wherein two distance measuring sensors, namely a first distance measuring sensor 11 and a second distance measuring sensor 12, are installed on the distance measuring module 1, an included angle between the distance measuring directions of the two distance measuring sensors is 90 °, an inclination angle sensor (the inclination angle sensor is integrated on the first distance measuring sensor 11, and the specific position of the inclination angle sensor is not shown) for measuring an inclination angle between the distance measuring sensor and a plumb line is installed on the first distance measuring sensor 11, the distance measuring module 1 is installed on the supporting frame through the rotation driving module, the supporting frame is used for horizontally erecting the distance measuring module 1 above the surface of a metal structure 4 to be measured, and the distance measuring sensors, the inclination angle sensor and the rotation driving module are all connected to a controller, the controller comprises a microprocessor with digital processing capability, and the distance measuring sensor and the inclination angle sensor are connected with the controller through a wireless communication module. .
Wherein the ranging sensor comprises a laser ranging sensor.
The rotation driving module comprises a rotating rod 21 and a motor 22, the rotating rod 21 is horizontally installed on the supporting frame through a bearing, the rotating rod 21 is connected with a rotating shaft of the motor 22, the distance measuring module 1 is fixed on the rotating rod 21, the motor 22 is connected with a controller, and the motor 22 adopts a servo motor.
The support frame includes top support plate 31, lateral part support 32 and adjustable landing leg 33, and lateral part support 32 sets up two, fixes respectively and forms frame structure in top support plate 31 below both sides, and adjustable landing leg 33 is installed and is used for adjusting the whole levelness of support frame in lateral part support 32 bottom, and the transfer line rotates to be installed between two lateral part supports 32, and the transfer line is parallel with top support plate 31.
The adjustable legs 33 include magnetic legs and adjustable bolts by which the magnetic legs are mounted at the bottom of the side brackets 32. The top support plate 31 is provided with a level for measuring levelness. Adjustable landing leg 33 sets up threely, and wherein two adjustable landing legs 33 are installed in a lateral part support 32 below, and another adjustable landing leg 33 is installed in another lateral part support 32 below, and three adjustable landing leg 33 forms isosceles triangle distribution form, and magnetism landing leg accessible magnetism adsorbs on the metal construction 4 surface that awaits measuring, then adjusts adjustable bolt height and adjusts the height that adjustable landing leg 33 made whole device be in horizontal position (and guarantee dwang 21 level), and this leveling process can carry out quick leveling through the spirit level on top support plate 31. The provision of three adjustable legs 33 provides a triangular support pattern which ensures the stability of the device.
The controller is used for generating a servo drive control signal, sending the servo drive control signal to the servo motor to control the distance measuring module 1 to rotate, receiving distance data sent by the distance measuring module 1 and angle data sent by the inclination angle sensor in the measuring process, storing the data, and analyzing and processing the data to obtain deformation information.
Based on the above deformation measuring device, this embodiment further provides a hoisting machinery metal structure deformation measuring method, and the method includes:
fixing the position of the support frame, and adjusting the initial position of the distance measuring module 1, so that the distance measuring direction of the first distance measuring sensor 11 is vertically downward along the plumb line direction, and the distance measuring direction of the second distance measuring sensor 12 is the horizontal direction;
the controller sends a control signal to control the rotation driving module to move, the rotation driving module drives the distance measuring module 1 to rotate until the rotation driving module rotates by 90 degrees, and the distance measuring module 1 receives distance measuring data of the first distance measuring sensor 11 and the second distance measuring sensor 12 and inclination angle data of the inclination angle sensor in real time in the rotating process;
the controller acquires the position information of the surface measuring point of the metal structure 4 to be measured according to the acquired distance measuring data and the acquired inclination angle data, wherein the position information comprises the horizontal distance and the vertical distance between the measuring point and the central point of the distance measuring module 1, and the surface deformation condition of the metal structure is further determined.
As shown in fig. 3, the center point of the distance measuring module is denoted as O point, the distance measuring data of the first distance measuring sensor 11 is denoted as L11, L12, L13, … …, L1n, the distance measuring data of the second distance measuring sensor 12 is denoted as L21, L22, L23, ·, L2n, and the tilt angle data of the tilt angle sensor is denoted as θ 1, θ 2, θ 3, … …, θ n;
calculating to obtain the position information of the measuring point Ai corresponding to the first distance measuring sensor 11 and the measuring point Bi corresponding to the second distance measuring sensor 12: d1i ═ L1i · sin θ i, H1i ═ L1i · cos θ i, D2i ═ L2i · cos θ i, H2i ═ L2i · sin θ i, D1i is the horizontal distance between the measurement point Ai and the measurement module center point, H1i is the vertical distance between the measurement point Ai and the measurement module center point, D2i is the horizontal distance between the measurement point Bi and the measurement module center point, H2i is the vertical distance between the measurement point Bi and the measurement module center point, i ═ 1, 2, … …, n;
determining the measuring points and the corresponding positions of the deformation points based on H1i, H2i, D1i and D2i, if the surface of the metal structure 4 to be measured has no deformation, keeping the H1i and the H2i unchanged, if the sizes of H1i and H2i are changed, comparing the sizes with the set threshold value, and making the surface of the metal structure 4 to be measured convex or concave, so as to obtain the horizontal distance information of the corresponding points and position the positions of the deformation points.
The distance measuring method is characterized in that the distance measuring sensors are adopted to measure the distances of two sides of the metal structure, the inclination angles of the distance measuring sensors are measured simultaneously, and the deformation condition of the surface of the metal structure is determined rapidly by converting the position information (including the horizontal distance and the vertical distance between the measuring point and the central point of the distance sensor) of the measuring point on the surface of the metal structure, so that the measuring precision is high, and the speed is high.
The above embodiments are merely examples and do not limit the scope of the present invention. These embodiments may be implemented in other various manners, and various omissions, substitutions, and changes may be made without departing from the technical spirit of the present invention.
Claims (10)
1. A device for measuring the deformation of a metal structure of a hoisting machine is characterized by comprising a support frame, a distance measuring module (1) and a rotary driving module, the distance measuring module (1) is provided with two distance measuring sensors which are respectively a first distance measuring sensor (11) and a second distance measuring sensor (12), the included angle between the ranging directions of the two ranging sensors is 90 degrees, the first ranging sensor (11) is provided with an inclination angle sensor used for measuring the inclination angle between the ranging sensor and the plumb line, distance measurement module (1) install on the support frame through the rotation driving module, the support frame be used for with distance measurement module (1) level erect in the metal structure (4) surface top position that awaits measuring, range sensor, tilt sensor and rotation driving module all be connected to the controller.
2. A hoisting machine metal structure deformation measuring device as set forth in claim 1, characterized in that said distance measuring sensor comprises a laser distance measuring sensor.
3. The metal structure deformation measuring device of the hoisting machine according to claim 1, wherein the rotation driving module comprises a rotating rod (21) and a motor (22), the rotating rod (21) is horizontally installed on the supporting frame through a bearing, a rotating shaft of the motor (22) is connected with the rotating rod (21), the distance measuring module (1) is fixed on the rotating rod (21), and the motor (22) is connected with the controller.
4. A hoisting machine metal structure deformation measuring device as claimed in claim 3, characterized in that said motor (22) comprises a servo motor.
5. The hoisting machinery metal structure deformation measuring device of claim 3, wherein the supporting frame comprises a top supporting plate (31), two side supports (32) and two adjustable legs (33), the two side supports (32) are respectively fixed at two sides below the top supporting plate (31) to form a frame structure, the adjustable legs (33) are installed at the bottom of the side supports (32) for adjusting the overall levelness of the supporting frame, the transmission rod is rotatably installed between the two side supports (32), and the transmission rod is parallel to the top supporting plate (31).
6. A hoisting machine metal structure deformation measuring device as claimed in claim 5, characterized in that said adjustable legs (33) comprise magnetic legs and adjustable bolts, said magnetic legs being mounted at the bottom of the side frame (32) by means of adjustable bolts.
7. Hoisting machine metal structure deformation measuring device according to claim 5, characterized in that the top support plate (31) is provided with a level for measuring levelness.
8. Hoisting machine metal structure deformation measuring device according to claim 5, characterized in that three adjustable legs (33) are provided, two adjustable legs (33) being mounted under one side frame (32) and the other adjustable leg (33) being mounted under the other side frame (32), the three adjustable legs (33) forming an isosceles triangle distribution.
9. A method for measuring the deformation of a metal structure of a hoisting machine, which is based on the deformation measuring device of any one of claims 1 to 8, and comprises the following steps:
fixing the position of a support frame, and adjusting the initial position of a distance measuring module (1) to ensure that the distance measuring direction of a first distance measuring sensor (11) is vertically downward along the plumb line direction, and the distance measuring direction of a second distance measuring sensor (12) is the horizontal direction;
the controller sends a control signal to control the rotation driving module to move, the rotation driving module drives the distance measuring module (1) to rotate until the rotation driving module rotates by 90 degrees, and distance measuring data of the first distance measuring sensor (11) and the second distance measuring sensor (12) and inclination angle data of the inclination angle sensor are received in real time in the rotation process of the distance measuring module (1);
the controller acquires the position information of the surface measuring point of the metal structure (4) to be measured according to the acquired distance measuring data and the acquired inclination angle data, wherein the position information comprises the horizontal distance and the vertical distance between the measuring point and the central point of the distance measuring module (1), and the surface deformation condition of the metal structure is further determined.
10. A method for measuring the deformation of a metal structure of a crane according to claim 9, characterized in that the distance measurement data of the first distance measurement sensor (11) are denoted as L11, L12, L13, … …, L1n, the distance measurement data of the second distance measurement sensor (12) are denoted as L21, L22, L23, ·, L2n, the tilt data of the tilt sensor are denoted as θ 1, θ 2, θ 3, … …, θ n;
calculating and obtaining the position information of a measuring point Ai corresponding to the first distance measuring sensor (11) and a measuring point Bi corresponding to the second distance measuring sensor (12): d1i ═ L1i · sin θ i, H1i ═ L1i · cos θ i, D2i ═ L2i · cos θ i, H2i ═ L2i · sin θ i, D1i is the horizontal distance between the measurement point Ai and the measurement module center point, H1i is the vertical distance between the measurement point Ai and the measurement module center point, D2i is the horizontal distance between the measurement point Bi and the measurement module center point, H2i is the vertical distance between the measurement point Bi and the measurement module center point, i ═ 1, 2, … …, n;
the measurement points where the deformation occurred and the corresponding positions were determined based on H1i, H2i, D1i, D2 i.
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Effective date of registration: 20251208 Address after: 200333 Shanghai City Putuo District Jinshajiang Road 915.NO Patentee after: Shanghai Special Equipment Supervision and Inspection Technology Research Institute Co.,Ltd. Country or region after: China Address before: 200062 Shanghai Jinsha River Road, Putuo District, No. 915 Patentee before: SHANGHAI INSTITUTE OF SPECIAL EQUIPMENT INSPECTION & TECHNICAL RESEARCH Country or region before: China |