CN219956700U - Calibration system of suspended container overload and unbalanced load detection device - Google Patents
Calibration system of suspended container overload and unbalanced load detection device Download PDFInfo
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- CN219956700U CN219956700U CN202321334257.1U CN202321334257U CN219956700U CN 219956700 U CN219956700 U CN 219956700U CN 202321334257 U CN202321334257 U CN 202321334257U CN 219956700 U CN219956700 U CN 219956700U
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Abstract
The embodiment of the utility model provides a calibration system of a suspended container overload and unbalanced load detection device, which comprises a hanger for installing a plurality of to-be-calibrated overload and unbalanced load detection devices, a plurality of calibration devices, a container with a plurality of weight bodies inside and a controller. The calibrating device comprises a tension sensor, a corner fitting and a hook lock, wherein the corner fitting is connected with the overload and unbalanced load detecting device, and the hook lock is connected with the container. The controller receives a first group of detection signals of the overload and unbalanced load detection device and a second group of detection signals of the tension sensor, and outputs a first detection result and a second detection result according to the two groups of detection signals. Utilize calibrating device hoist and mount container, the horizontal loading force when eliminating hoist and mount, establish ties with unbalanced load detection device simultaneously, the atress is unified when detecting same container, and measurement accuracy is high and be convenient for install measurement and magnitude transmission, help calibrating the unbalanced load detection device of surpassing through analysis testing result, provide technical guarantee for the safe transportation of container.
Description
Technical Field
The utility model relates to the technical field of transportation safety, in particular to a calibration system of a suspended container overload and unbalanced load detection device.
Background
With the development of container transportation and the development of the European shift, the occurrence of transportation safety accidents is often caused by the existence of overload and unbalanced load factors in railway container transportation. The existing suspended container overload and unbalanced load detection device is mainly installed on a front hanging bracket or a gantry crane bracket, and can detect the weight, the unbalanced load and the unbalanced load of a container when the container is lifted, but the suspended container overload and unbalanced load detection device lacks a calibration device and a magnitude tracing method, so that the problems that the verification standard of the suspended container overload and unbalanced load detection device is not uniform, the verification precision of the device cannot be evaluated in the installation and use processes are caused, the verification precision of the suspended container overload and unbalanced load detection device is poor, the technical condition of verification is chaotic, and the potential safety hazard of container transportation is easily caused.
Disclosure of Invention
Therefore, the utility model aims to provide a calibration system of the suspended container overload and unbalanced load detection device, which improves the precision of weighing and overload and unbalanced load detection of the container through calibration and provides technical guarantee for safe transportation of the container.
The embodiment of the utility model provides a calibration system of a suspended container overload and unbalanced load detection device, which comprises the following components:
a hanger configured to mount a plurality of overload and unbalanced load detection devices to be calibrated;
the calibrating devices comprise a tension sensor, corner pieces and a hook lock, wherein two ends of the tension sensor are respectively connected with the corner pieces and the hook lock, and the corner pieces are configured to be connected with the corresponding overload and unbalanced load detecting devices;
the container is internally provided with a plurality of weight bodies and is connected with the hook lock;
and the controller is configured to receive a first group of detection signals of the overload and unbalanced load detection device and a second group of detection signals of the tension sensor, and output a corresponding first detection result and a corresponding second detection result according to the first group of detection signals and the second group of detection signals.
Further, the calibration system further comprises:
a gesture sensor disposed on the container;
wherein the controller is configured to receive a third set of detection signals of the attitude sensor and output the corrected second detection result according to the third set of detection signals.
Further, the calibration device further comprises a plurality of U-shaped hanging rings;
the tension sensor is connected with the corner fitting and the hook lock through the U-shaped hanging ring.
Further, the U-shaped hanging ring includes:
the lifting ring main body is U-shaped, and pin holes are formed in two ends of the lifting ring main body; and
the pin shaft is detachably arranged at the opening of the lifting ring main body through the pin hole.
Further, the tension sensor is a plate-ring tension sensor, and through holes are formed in two ends of the plate-ring tension sensor;
the pin shaft penetrates through the through hole so that the U-shaped hanging ring is connected with the plate-ring type tension sensor.
Further, the calibration device further includes:
and two ends of the connecting shaft are respectively connected with the corner fitting and the U-shaped hanging ring.
Further, the connecting shaft is provided with threads and is in threaded connection with the corner fitting.
Further, the four corners of the hanger are respectively configured to be provided with one overload and unbalanced load detection device;
the calibrating devices are four and are respectively connected with one overload and unbalanced load detecting device;
four of the calibration devices are connected to the four corners of the container, respectively.
Further, the calibration system further comprises:
a first output device communicatively coupled to the controller and configured to output the first detection result; and
and a second output device communicatively connected to the controller and configured to output the second detection result.
Further, the calibrating device and the overload and unbalanced load detecting device are suspended in series.
The embodiment of the utility model provides a calibration system of a suspended container overload and unbalanced load detection device, which comprises a hanger for installing a plurality of to-be-calibrated overload and unbalanced load detection devices, a plurality of calibration devices, a container with a plurality of weight bodies in the interior, a controller and a matched data analysis system. The calibrating device comprises a tension sensor, corner fittings and a hook lock, wherein the corner fittings are connected with the two ends of the tension sensor, the corner fittings are used for being connected with corresponding overload and unbalanced load detecting devices, and the hook lock is used for being connected with a container. The controller receives a first group of detection signals of the overload and unbalanced load detection device and a second group of detection signals of the tension sensor, outputs corresponding first detection results and second detection results according to the received two groups of detection signals, and the data analysis system calculates and displays the acquired data. Therefore, the calibration of the overload and unbalanced load detection device is facilitated by analyzing the detection result, and technical support is provided for the safe transportation of the container.
Drawings
The above and other objects, features and advantages of the present utility model will become more apparent from the following description of embodiments of the present utility model with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a calibration system according to an embodiment of the present utility model;
FIG. 2 is a schematic block diagram of a calibration system according to an embodiment of the present utility model;
FIG. 3 is a schematic cross-sectional view of a portion of an apparatus for calibrating a system according to an embodiment of the present utility model;
FIG. 4 is an enlarged partial schematic view of a section of a calibration system according to an embodiment of the present utility model;
FIG. 5 is a schematic structural diagram of a calibration device according to an embodiment of the present utility model;
FIG. 6 is a schematic side view of a calibration device according to an embodiment of the present utility model;
FIG. 7 is a schematic cross-sectional view of a calibration device according to an embodiment of the present utility model;
fig. 8 is a schematic structural diagram of a container portion of a calibration system according to an embodiment of the present utility model.
Reference numerals illustrate:
1-a hanging bracket; 2-calibrating means; 21-a tension sensor; 22-corner pieces; 23-hooking lock; 24-U-shaped hanging rings; 241-a lifting ring body; 242-pin shafts; 25-connecting shaft; 3-a container; 31-weight body; 4-a controller; 5-attitude sensor; 6-a first output device; 7-a second output device; 8-serial server; 9-a switch; a-overload and unbalanced load detection device; a1-rotating lock; a2-sheath.
Detailed Description
The present utility model is described below based on examples, but the present utility model is not limited to only these examples. In the following detailed description of the present utility model, certain specific details are set forth in detail. The present utility model will be fully understood by those skilled in the art without the details described herein. Well-known methods, procedures, flows, components and circuits have not been described in detail so as not to obscure the nature of the utility model.
Moreover, those of ordinary skill in the art will appreciate that the drawings are provided herein for illustrative purposes and that the drawings are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the application, the words "comprise," "comprising," and the like are to be construed as including, rather than being exclusive or exhaustive; that is, it is the meaning of "including but not limited to".
In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
The existing container overload and unbalanced load detection device arranged on the gantry crane hanger or the front crane can detect the weight, the unbalanced load and the unbalanced load condition of the container during hoisting. When the overload and unbalanced load value of the container accords with the safety range specified by the national standard, the loading state of the container can be determined to accord with the safety requirement, and the container does not need to be modified to ensure the transportation safety. However, the detection device may have problems of objective installation errors, systematic errors, sensor weighing errors and the like, and a unified calibration system and method are lacked for the detection device, so that verification accuracy is not uniform and the magnitude cannot be traced. Therefore, it is necessary to provide a calibration system and a calibration method for a container overload and unbalanced load detection device to perform magnitude traceability, so that the detection device has traceability, that is, different detection devices are calibrated based on the same set of calibration system and calibration method, thereby improving the verification precision of the detection device and guaranteeing the transportation safety of the container.
Fig. 1 is a schematic structural diagram of a part of a calibration system according to an embodiment of the present utility model, and fig. 2 is a schematic structural diagram of a module of a calibration system according to an embodiment of the present utility model, and, with reference to fig. 1-2, the calibration system of a suspended container overload and unbalanced load detection device includes a hanger 1, a plurality of calibration devices 2, a container 3, and a controller 4. Wherein the hanger 1 is configured to mount a plurality of overload and unbalanced load detection devices a to be calibrated. The number of calibration devices 2 is the same as the overload detection device a, and each calibration device 2 includes a tension sensor 21, a corner piece 22, and a catch 23. Specifically, two ends of the tension sensor 21 are respectively connected with the corner fitting 22 and the hook lock 23, and the connection between the calibrating device 2 and the overload and unbalanced load detecting device A can be realized by connecting the corner fitting 22 with the corresponding overload and unbalanced load detecting device A. Further, the hook lock 23 of the calibration device 2 is connected to the container 3, and a plurality of weight bodies 31 are provided in the container 3 to simulate the loaded cargo. Thus, driving the spreader 1 simulates the scene of lifting the container 3. Referring to fig. 3-4, the overload and unbalanced load detection device a includes a twist lock A1 and a sheath A2 for mating installation with the corner fitting 22. Further, the calibrating device 2 and the overload and unbalanced load detecting device A are suspended in series, so that the two devices are ensured to be in the same mechanical coordinate system, and the transverse load force when the container 3 is hoisted is eliminated.
The controller 4 is communicatively connected to the plurality of overload/unbalanced load detection devices a and the plurality of tension sensors 21. Thus, the overload/unbalanced load detection device a can transmit a first set of detection signals to the controller 4, and the tension sensor 21 can transmit a second set of detection signals to the controller 4. Further, the controller 4 may output the corresponding first detection result and second detection result according to the received two sets of detection signals, so that the calibration work may be completed by calculating and analyzing the two detection results.
It will be readily appreciated that in this embodiment, the controller 4 functions to perform analytical calculations on the first and second sets of detection signals. As an alternative implementation manner, the overload and unbalanced load detection device a and the calibration device 2 may be respectively provided with a calculation unit, so that after the detection signals are synchronously collected, preliminary analysis and calculation are performed, and the result is transmitted to the controller 4, and then the controller 4 analyzes and calculates an offset value, so as to provide basic data and a judgment standard for the calibration of the overload and unbalanced load detection device a.
It should be further noted that, in order to accurately judge the detection accuracy of the overload and unbalanced load detection device a, the hanger 1 and the container 3 have a unified standard. The spreader 1 is illustratively a unified model of a front-mounted spreader or gantry spreader. Correspondingly, the container 3 is a frame type container, an open container or a standard container of uniform specification.
Further, as shown in fig. 1 and 8, the plurality of weight bodies 31 in the container 3 are standard weights, so as to analyze the collected total weight, unbalanced load and unbalanced weight data. For example, the unbalanced load and the unbalanced weight value may be calculated and compared by using a moment balance equation to determine the detection accuracy of the overload and unbalanced load detection device a and the calibration system.
As shown in fig. 2, in one embodiment, the calibration system further comprises an attitude sensor 5. Specifically, an attitude sensor 5 is provided on the container 3 and is communicatively connected to the controller 4 for detecting attitude information of the container 3. Further, after receiving the third set of detection signals output by the attitude sensor 5, the controller 4 may correct the detection result according to the third set of detection signals, and output a corrected second detection result. By arranging the attitude sensor 5, the compensation of stress during verification of the state of the container 3 is realized, and the detection precision of the calibration device is improved. Meanwhile, in order to improve the detection accuracy, the measurement accuracy of the tension sensor 21 is 0.05% fs to ensure that the system accuracy of the calibration system is better than 0.15% fs.
In one embodiment, as shown in connection with fig. 5-7, the calibration device 2 further comprises a plurality of U-shaped eyes 24, through which the tension sensor 21 is connected to the corner piece 22 and the catch 23. Specifically, two U-shaped hanging rings 24 are sequentially connected to two ends of each tension sensor 21 in this embodiment, that is, each calibration device 2 includes four U-shaped hanging rings 24. As an alternative embodiment, each calibration device 2 may include four, six, or other numbers of U-shaped hanging rings 24, and two ends of each tension sensor 21 are sequentially connected to any number of U-shaped hanging rings 24, respectively.
As shown in connection with fig. 5-7, in one embodiment, the U-shaped sling 24 includes a sling body 241 and a pin 242. Specifically, the ring main body 241 is provided in a U shape, and both ends are provided with pin holes. Further, the pin shaft 242 sequentially passes through two pin holes of the lifting ring main body 241, so as to be detachably arranged at the opening of the lifting ring main body 241, so that the U-shaped lifting ring 24 is formed into a complete U-shaped annular structure, and the U-shaped lifting ring 24 has a connecting function.
In one embodiment, the tension sensor 21 is a plate-loop tension sensor. Specifically, both ends of the plate ring type tension sensor are provided with through holes. When the U-shaped hanging ring 24 is connected with the plate ring type tension sensor, the through hole is positioned at a position between two pin holes of the hanging ring main body 241, and the pin shaft 242 penetrates through the pin holes and the through hole to enable the U-shaped hanging ring 24 to be connected with the plate ring type tension sensor.
As shown in fig. 7, in one embodiment, the calibration device 2 further comprises a connection shaft 25. Specifically, both ends of the connecting shaft 25 are connected with the corner piece 22 and the U-shaped hanging ring 24, respectively. It will be readily appreciated that the lower end of the connecting shaft 25 is provided with a connecting hole so that the pin 242 passes through the pin hole and the connecting hole to connect the U-shaped hanging ring 24 with the connecting shaft 25.
Further, the connecting shaft 25 is provided with threads and is screwed with the corner piece 22. By adjusting the length of the screw thread on the connecting shaft 25, the lifting angle of the container 3 can be adjusted, so that the entire container 3 can be kept horizontal for detection by the plurality of tension sensors 21.
In one implementationIn this embodiment, four overload/unbalanced load detection devices a are mounted on the four corners of the hanger 1, respectively. Correspondingly, the calibration device 2 has four, and is respectively connected with an overload and unbalanced load detection device A. Further, four calibration devices 2 are connected to the four corners of the container 3, respectively. Thus, the forces detected at the four corners are denoted as F, respectively 1 、F 2 、F 3 、F 4 The length and width of the container 3 are denoted as L and W, respectively, and a space rectangular coordinate system is established with the theoretical gravity center point O of the container 3 as the origin. When the center of gravity of the container 3 is deflected, the displacement in the longitudinal direction is denoted as S, the displacement in the width direction is denoted as H, the actual center of gravity point of the container 3 is denoted as O', and the unbalanced load value of the container 3 can be calculated according to the moment balance equation.
Specifically, the torque balance equation is calculated:
further, it is possible to obtain according to the formula (1) and the formula (2):
wherein F is 1 、F 2 、F 3 、F 4 The weight of each lifting point of the container 3 is respectively, W is the width of the container 3, L is the length of the container 3, S is the deflection amount of the container 3 in the length direction, and H is the deflection amount of the container 3 in the width direction.
The error in the indication of the tension sensor 21 in the calibration device 2 and the repeatability accuracy were both 0.05% fs. According to the system error transfer rule and the condition that the calibration device 2 eliminates the influence of transverse force when detecting the container 3, the indicating value error and repeatability precision of the whole calibration device 2 are both 0.15% FS. Meanwhile, the indicating value error and repeatability precision of the overload and unbalanced load detection device A are both 0.5% FS, and the measurement value transmission rule is met. Therefore, the calibration system can realize the calibration work of the overload and unbalanced load detection device.
Further, the weight body 31, that is, the number and the position of the standard weights, can be changed to change the weight and the gravity center position of the container 3, so that the unbalanced load and the unbalanced weight value of the container 3 can be calculated by using a moment balance equation, and then compared with the detection values of the overload and unbalanced load detection device A and the calibration device 2, and the calibration precision and the magnitude tracing of the overload and unbalanced load detection device A can be judged. The standard weight in this embodiment has a precision of 1kg, so that the weight in the container 3 can be adjusted more precisely.
As shown in fig. 2, in one embodiment, the calibration system further comprises a first output device 6 and a second output device 7. Specifically, the first output device 6 and the second output device 7 are both communicatively connected to the controller 4. Thereby, the controller 4 can output the first detection result through the first output means 6, and can output the second detection result through the second output means 7. In the present embodiment, the first output device 6 and the second output device 7 may be a multifunctional meter.
As shown in fig. 2, in one embodiment, the calibration system further comprises a serial server 8 and a switch 9. The serial port server 8 is a 16-channel serial port server and is arranged on the hanger 1, and can synchronously collect signals of the 4-channel overload and unbalanced load detection device A, signals of the 4-channel tension sensor and signals of the gesture sensor, so that the signals are transmitted to the controller 4 through the switch 9 for subsequent analysis and calculation.
According to the calibration system provided by the embodiment of the utility model, the calibration device 2 is used as an intermediate transition part of the hoisted container 3 and the overload and unbalanced load detection device A, and the crane 1 is used for measuring the total weight, the unbalanced load and the unbalanced load after hoisting the container 3 so as to adjust the linearity of the sensor in the overload and unbalanced load detection device A, so that the overload and unbalanced load detection device A can be consistent with the detection value of the calibration device 2 in actual application. Therefore, the overload and unbalanced load detection device A has unified verification standards during calibration, and the verification precision of the overload and unbalanced load detection device A is ensured.
The embodiment of the utility model provides a calibration system of a suspended container overload and unbalanced load detection device, which comprises a hanger for installing a plurality of to-be-calibrated overload and unbalanced load detection devices, a plurality of calibration devices, a container with a plurality of weight bodies in the interior and a controller. The calibrating device comprises a tension sensor, corner fittings and a hook lock, wherein the corner fittings are connected with the two ends of the tension sensor, the corner fittings are used for being connected with corresponding overload and unbalanced load detecting devices, and the hook lock is used for being connected with a container. The controller receives a first group of detection signals of the overload and unbalanced load detection device and a second group of detection signals of the tension sensor, and outputs corresponding first detection results and second detection results according to the received two groups of detection signals. Therefore, the calibration of the overload and unbalanced load detection device is facilitated by analyzing the detection result, and technical support is provided for the safe transportation of the container.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A calibration system for an overhead container overload and unbalanced load detection device, the calibration system comprising:
a cradle (1), the cradle (1) being configured to mount a plurality of overload and unbalanced load detection devices (a) to be calibrated;
a plurality of calibration devices (2), wherein the calibration devices (2) comprise a tension sensor (21), corner pieces (22) and a hook lock (23), two ends of the tension sensor (21) are respectively connected with the corner pieces (22) and the hook lock (23), and the corner pieces (22) are configured to be connected with the corresponding overload and unbalanced load detection devices (A);
a container (3), wherein a plurality of weight bodies (31) are arranged in the container (3) and are connected with the hook lock (23); and
and a controller (4), wherein the controller (4) is configured to receive a first group of detection signals of the overload and unbalanced load detection device (A) and a second group of detection signals of the tension sensor (21), and output a corresponding first detection result and a corresponding second detection result according to the first group of detection signals and the second group of detection signals.
2. The calibration system of a suspended container overload and unbalanced load detection device of claim 1, wherein the calibration system further comprises:
-an attitude sensor (5), the attitude sensor (5) being arranged on the container (3);
wherein the controller (4) is configured to receive a third set of detection signals of the attitude sensor (5) and output the corrected second detection result according to the third set of detection signals.
3. Calibration system of a suspended container overload and unbalanced load detection device according to claim 1, characterized in that the calibration device (2) further comprises a plurality of U-shaped lifting rings (24);
the tension sensor (21) is connected with the corner fitting (22) and the hook lock (23) through the U-shaped hanging ring (24).
4. A calibration system for a suspended container overload and unbalanced load detection device according to claim 3, characterized in that the U-shaped lifting ring (24) comprises:
the lifting ring main body (241), wherein the lifting ring main body (241) is U-shaped, and two ends of the lifting ring main body are provided with pin holes; and
the pin shaft (242) is detachably arranged at the opening of the lifting ring main body (241) through the pin hole.
5. The calibration system of the suspended container overload and unbalanced load detection device according to claim 4, wherein the tension sensor (21) is a plate-ring tension sensor, and both ends of the plate-ring tension sensor are provided with through holes;
the pin shaft (242) penetrates through the through hole so that the U-shaped hanging ring (24) is connected with the plate ring type tension sensor.
6. A calibration system for a suspended container overload and unbalanced load detection device according to claim 3, characterized in that the calibration device (2) further comprises:
and the two ends of the connecting shaft (25) are respectively connected with the corner fitting (22) and the U-shaped hanging ring (24).
7. Calibration system for a suspended container overload and unbalanced load detection device according to claim 6, characterized in that the connection shaft (25) is provided with a screw thread and is screwed with the corner piece (22).
8. Calibration system of a suspended container overload and unbalanced load detection device according to claim 1, characterized in that the hanger (1) is configured to mount one of the overload and unbalanced load detection devices (a) on each of the four corners;
the number of the calibrating devices (2) is four, and the calibrating devices are respectively connected with one overload and unbalanced load detecting device (A);
four of the calibration devices (2) are respectively connected to four corners of the container (3).
9. The calibration system of a suspended container overload and unbalanced load detection device of claim 1, wherein the calibration system further comprises:
-a first output device (6), the first output device (6) being communicatively connected to the controller (4) and configured to output the first detection result; and
-a second output device (7), the second output device (7) being communicatively connected to the controller (4) and configured to output the second detection result.
10. Calibration system for a suspended container overload and unbalanced load detection device according to claim 1, characterized in that the calibration device (2) and the overload and unbalanced load detection device (a) are suspended in series.
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