CN107941398B - Monitoring support and intelligent monitoring system - Google Patents
Monitoring support and intelligent monitoring system Download PDFInfo
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- CN107941398B CN107941398B CN201711209811.2A CN201711209811A CN107941398B CN 107941398 B CN107941398 B CN 107941398B CN 201711209811 A CN201711209811 A CN 201711209811A CN 107941398 B CN107941398 B CN 107941398B
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- 230000007774 longterm Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000036541 health Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 12
- 238000005259 measurement Methods 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/30—Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention provides a monitoring support and an intelligent monitoring system, and relates to the technical field of structural health monitoring. The invention provides a monitoring support, comprising: the support basin ring, the force measuring plate and the vertical load sensing element are made of elastic materials and are arranged in the support basin ring; the side wall of the support basin ring is connected with a detachable auxiliary member, the auxiliary member penetrates through the side wall of the support basin ring, and the vertical load sensing element is arranged at one end of the auxiliary member, which is positioned in the support basin ring, and is in contact with the side wall of the force measuring plate. The monitoring support provided by the invention avoids the situation that the vertical load sensing element is in a severe stress state for a long time, prolongs the service life of the vertical load sensing element, is independent of the main body structure of the support, solves the technical problems of maintenance and replacement of the bridge support sensing element, and realizes long-term monitoring of the bridge support.
Description
Technical Field
The invention relates to the technical field of structural health monitoring devices, in particular to a monitoring support and an intelligent monitoring system.
Background
The bridge support is a key stress component and a force transmission device for connecting the upper structure and the lower structure of the bridge, and the load of the upper structure is transmitted to the lower structure and the foundation through the support. By monitoring the counter force of the support, the influence of various load factors on the internal force of the bridge structure and the change rule thereof can be analyzed, so that the purpose of predicting and evaluating the use safety of the bridge is achieved.
The existing force measuring support has various technical schemes, but has certain limitations.
The oil pressure force measuring support is characterized in that an oil cavity is formed in a rubber plate of the support, and the oil pressure is measured and read through an oil meter to calculate the vertical load of the support. The force measuring support has certain height adjusting characteristics and can be used for eliminating uneven settlement of the bridge support; however, the internal structure of the force measuring support is complex, the internal structure of the force measuring support is changed after oil filling, the problems of oil leakage and the like exist for a long time, the sustainability is poor, and the replaceability is poor. The adhesive type stress strain sensing force measuring support has the advantages of simple structure and low cost, and has the defects that the intelligent monitoring system is poor in stability and easy to interfere, and a sensor built in the structure is in a complex and severe stress environment for a long time and is easy to fail; it is difficult to replace once it fails.
The sensing element in the force measuring bridge support in the prior art is fixedly arranged in the support structure, so that the performance of the support can be influenced on one hand; on the other hand, in a built-in force measuring scheme of the sensor, the sensor is in a severe stress environment for a long time, and the sensor is easy to fail; thirdly, the sensor element is inconvenient to maintain; fourth, when the sensing element is damaged, it is inconvenient to replace the sensing element.
Disclosure of Invention
The invention aims to provide a monitoring support which can realize the monitoring of horizontal and vertical loads. The scientific load monitoring scheme is designed to avoid the sensor being in a severe stress state for a long time, and the service life of the sensor is prolonged; the technical problem that the bridge support is inconvenient to maintain and replace the sensing element in the prior art is solved, and long-term and effective monitoring of the bridge support is realized.
The invention provides a monitoring support, comprising: the support basin ring, the force measuring plate and the vertical load sensing element are arranged in the support basin ring, and the force measuring plate is made of elastic materials;
the side wall of the support basin ring is connected with a detachable auxiliary member, the auxiliary member penetrates through the side wall of the support basin ring, and the vertical load sensing element is arranged at one end of the auxiliary member, which is positioned in the support basin ring, and is in contact with the side wall of the force measuring plate.
Further, the monitoring support also comprises a support top plate, the support top plate is arranged above the support basin ring, and the lower end surface of the support top plate is provided with a support upper annular wall; the upper annular wall of the support is connected with a detachable auxiliary member, the auxiliary member penetrates through the upper annular wall of the support to be in contact with the support basin ring, and a horizontal load sensing element is arranged in one end of the auxiliary member, which is in contact with the support basin ring;
when the support top plate receives horizontal load, the support top plate moves relative to the support basin ring, and the support basin ring can be deformed by the horizontal pushing force of the upper annular wall of the support.
Further, one end of the auxiliary member located inside the monitoring support is provided with a protection structure.
Further, the auxiliary member is in a rod shape, one end of the auxiliary member, which is positioned in the support basin ring, is provided with a mounting groove, and a protective cover plate is mounted at the opening of the mounting groove.
Further, the auxiliary member is provided with a through hole, and the axial direction of the through hole is the same as the length direction of the auxiliary member.
Further, the auxiliary member is in a rod shape, and the auxiliary member is in threaded connection with the support basin ring and the auxiliary member is in threaded connection with the support upper annular wall.
Further, the center of the vertical load sensing element is located on the same plane as the center layer of the force measuring plate.
Further, the auxiliary members are multiple in number, the auxiliary members are uniformly distributed along the circumferential direction of the support basin ring, and each auxiliary member is provided with the vertical load sensing element.
Further, the auxiliary members are a plurality of, the auxiliary members are uniformly distributed along the circumferential direction of the upper annular wall of the support, and each auxiliary member is provided with the horizontal load sensing element.
The invention provides a monitoring support, comprising: the support basin ring, the force measuring plate and the vertical load sensing element are made of elastic materials and are arranged in the support basin ring; the side wall of the support basin ring is connected with a detachable auxiliary member, the auxiliary member penetrates through the side wall of the support basin ring, and the vertical load sensing element is arranged at one end of the auxiliary member, which is positioned in the support basin ring, and is in contact with the side wall of the force measuring plate. According to the monitoring support, the vertical load sensing element in the monitoring support is detachably connected with the support basin ring through the auxiliary member, and when the vertical load sensing element fails, the auxiliary member can be detached to replace the vertical load sensing element.
The monitoring support provided by the invention avoids the situation that the vertical load sensing element is in a severe stress state for a long time, prolongs the service life of the vertical load sensing element, is independent of the main body structure of the support, solves the technical problems of maintenance and replacement of the vertical load sensing element, and realizes long-term monitoring of the monitoring support.
Another object of the present invention is to provide an intelligent monitoring system.
The intelligent monitoring system provided by the invention comprises the monitoring support.
The intelligent monitoring system has the same advantages as the monitoring support in comparison with the prior art, and is not described herein.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the internal structure of a monitor support according to an embodiment of the present invention;
FIG. 2 is a schematic view of an internal structure of an auxiliary member in a monitor stand according to an embodiment of the present invention;
fig. 3 is a schematic diagram showing distribution of auxiliary components on an upper annular wall of a support in a monitoring support according to an embodiment of the present invention.
Icon: 100-supporting a basin ring; 110-a support base plate; 200-force measuring plates; 300-a vertical load sensing element; 400-auxiliary member; 410-protective cover plate; 420-insulating collar; 430-a piezoelectric material; 440-signal output conductor; 450-plug-in protection plugs; 500-an upper annular wall of the support; 510-a pedestal roof; 511-stainless steel plate sliding surface; 512-polytetrafluoroethylene sliding surface; 600-horizontal load sensing element.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
Fig. 1 is a schematic diagram of an internal structure of a monitoring support according to an embodiment of the present invention, and as shown in fig. 1, the monitoring support according to an embodiment of the present invention includes: the support basin ring 100, the force measuring plate 200 and the vertical load sensing element 300, wherein the force measuring plate 200 is made of elastic materials and is arranged in the support basin ring 100;
the side wall of the support basin ring 100 is connected with a detachable auxiliary member 400, the auxiliary member 400 penetrates through the side wall of the support basin ring 100, and the vertical load sensing element 300 is arranged at one end of the auxiliary member 400, which is positioned in the support basin ring 100, and is in contact with the side wall of the force measuring plate 200.
The lower end of the support basin ring 100 is provided with a support bottom plate 110, and the support basin ring 100 is fixedly connected with the support bottom plate 110; the force measuring plate 200 may be made of rubber or other high polymer elastic materials, in this embodiment, the force measuring plate 200 is made of rubber materials, the force measuring plate 200 is arranged at the bottom of the support basin 100, the lower end surface of the force measuring plate 200 contacts with the upper end surface of the support bottom plate 110, and the side wall of the force measuring plate 200 contacts with the inner wall of the support basin 100; the vertical load sensing element 300 is connected to one end face of the auxiliary member 400, and the auxiliary member 400 is connected to the support tub ring 100, so that the vertical load sensing element 300 contacts with the side wall of the force measuring plate 200; the vertical load sensing element 300 is connected by a cable to a test meter external to the monitoring support.
Before measurement, determining the relationship between the vertical load and the reading of the vertical load sensing element 300 through test calibration; when the force measuring plate 200 receives vertical load, the force measuring plate 200 deforms in the horizontal direction, the vertical load sensing element 300 can sense the compressive stress of the force measuring plate 200 when being extruded and deformed, and the vertical load received by the monitoring support is monitored according to the relation between the vertical load and the reading of the vertical load sensing element 300.
The vertical load sensing element 300 may be a fiber grating pressure sensor, a piezoelectric stress sensor, a resistive stress sensor, or the like.
The monitoring support also comprises a support top plate 510, wherein the support top plate 510 is arranged above the support basin 100, and the lower end surface of the support top plate 510 is provided with a support upper annular wall 500; the detachable auxiliary member 400 is connected to the support upper annular wall 500, the auxiliary member 400 penetrates through the support upper annular wall 500 to be in contact with the support basin 100, and a horizontal load sensing element 600 is arranged in one end of the auxiliary member 400, which is in contact with the support basin 100;
when the support top plate 510 receives a horizontal load, the support top plate 510 moves relative to the support basin 100, and the support basin 100 is deformed by the horizontal pushing force of the support upper annular wall 500.
As shown in fig. 1, a first protrusion is arranged at the upper end of the side wall of the support basin 100, a support upper annular wall 500 is arranged at the lower end surface of the support top plate 510, the lower end surface of the support upper annular wall 500 is positioned below the lower end surface of the first protrusion, a second protrusion is arranged on the side surface of the support upper annular wall 500 opposite to the support basin 100, the upper end surface of the second protrusion is positioned below the lower end surface of the first protrusion, and the vertical side surface of the second protrusion is positioned at one side of the vertical side surface of the first protrusion close to the support basin 100;
the auxiliary member 400 penetrates the support upper ring wall 500, and a length direction of the auxiliary member 400 is perpendicular to an axial direction of the support upper ring wall 500, and the horizontal load sensing element 600 is connected to an end surface of the auxiliary member 400 opposite to the support tub ring 100 and contacts the support tub ring 100.
The upper side of the force measuring plate 200 is sequentially provided with a first middle plate and a second middle plate, the lower end surface of the first middle plate is in contact with the force measuring plate 200, the upper end surface of the first middle plate is provided with a concave surface which is sunken towards the direction close to the force measuring plate 200, the upper end surface of the second middle plate is in sliding connection with the support top plate 510, the lower end surface of the second middle plate is provided with a convex surface which protrudes towards the direction close to the force measuring plate 200, the convex surface of the second middle plate is in sliding fit with the concave surface of the first middle plate, and a polytetrafluoroethylene sliding surface 512 is arranged between the first middle plate and the second middle plate; the lower end surface of the support top plate 510 is provided with a stainless steel plate sliding surface 511, and the upper end surface of the second intermediate plate is provided with a polytetrafluoroethylene sliding surface 512.
Before measurement, determining the relationship between the horizontal load and the reading of the horizontal load sensing element 600 through test calibration;
when the support is monitored to be loaded in the horizontal direction, the support top plate 510 moves horizontally through the bearing surfaces of the stainless steel plate sliding surface 511 and the polytetrafluoroethylene sliding surface 512, and the horizontal load sensing element 600 can sense the horizontal pushing force of the support basin 100 to the support top plate 510. The horizontal load to which the monitor mount is subjected is monitored based on the relationship between the determined horizontal load and the readings of the horizontal load sensing element 600.
Further, in some embodiments, the vertical load sensing element 300 is selected to be the same as the horizontal load sensing element 600.
The monitoring support provided by the embodiment of the invention realizes the monitoring of the horizontal load and the vertical load by using one sensing element, thereby reducing the integration difficulty of a bridge monitoring system; in addition, the auxiliary member 400 avoids the situation that the horizontal load sensing element 600 is in a severe stress state for a long time, prolongs the service life of the horizontal load sensing element 600, and the horizontal load sensing element 600 is independent of the main body structure of the support, so that the technical problems of maintenance and replacement of the horizontal load sensing element 600 are solved, and long-term monitoring of the monitoring support is realized.
And calibrating according to the initial reading of the sensor test item and the corresponding reading of the sensor test item after the test load is applied. The calibration steps are as follows:
(1) And (3) after the monitoring support is assembled, placing the monitoring support on a testing machine, aligning the center of the monitoring support with the center of the testing machine, loading the monitoring support to 1% of the design bearing capacity, checking the stress of the force transducer, and pre-pressing after confirming no errors.
(2) The vertical design bearing capacity of the monitoring support is loaded at a continuous and uniform speed and repeated for 3 times.
(3) The test load is uniformly divided into 10 grades from zero (the more the grading number is, the more accurate the relation between the test load and the reading of the load cell is); taking 1% of the designed bearing capacity as an initial load, then loading step by step, recording the load of the tester and the load cell after each stage of load is stabilized for 2 minutes until the load cell is tested to a limit load, unloading after stabilizing for 3 minutes, and continuously carrying out the loading process for 3 times.
(4) And the load of the force transducer is obtained by taking an arithmetic average value of 3 times of sensor readings of each stage, a curve of the sensor load and the load of the tester is drawn, and the relation between the load of the tester and the load of the sensor is determined.
In actual use, the monitoring support obtains the reading of the force transducer in real time, and the calibrated sensor reading and the bearing load relation of the support are integrated into the intelligent monitoring system, so that the bearing load of the support can be directly identified in the actual monitoring and monitoring process.
Further, one end of the auxiliary member 400 located inside the monitoring support is provided with a protection structure.
Further, the auxiliary member 400 has a rod shape, one end of the auxiliary member 400 located in the support tub ring 100 is provided with a mounting groove, and a protective cover plate 410 is mounted at an opening of the mounting groove.
Specifically, the mounting groove is formed on the right end face of the auxiliary member 400 shown in fig. 2, the mounting groove is cylindrical, as shown in fig. 2, an insulating ring sleeve 420 is arranged in the mounting groove, piezoelectric material 430 is filled in the insulating ring sleeve 420, an electrode is arranged in the piezoelectric material 430, the electrode is connected with a socket through a signal output wire 440, the socket is formed on one end of the auxiliary member 400, which is located outside the support basin ring 100, and a plug-in protection plug 450 is arranged in the socket. The piezoelectric material 430 may be a piezoelectric ceramic, a piezoelectric film, a high strain single crystal piezoelectric material, or a highly engineered piezoelectric composite material. In the measurement process, the piezoelectric material 430 measures by using the piezoelectric effect, and the piezoelectric material 430 and the electrode form the vertical load sensing element 300 or the horizontal load sensing element 600.
The vertical load sensing element 300 and the horizontal load sensing element 600 are installed in the installation groove on the corresponding auxiliary member 400, and the outer side is provided with the protective cover plate 410, so that the vertical load sensing element and the horizontal load sensing element are isolated from the external environment, and have high chemical stability; the signal transmission of the sensing element is completely cured inside the auxiliary member 400, and has a strong anti-disturbance characteristic.
Further, the auxiliary member 400 is provided with a through hole having an axial direction identical to a longitudinal direction of the auxiliary member 400.
Specifically, the auxiliary member 400 is in a rod shape, the auxiliary member 400 is provided with a through hole, the axis of the through hole is parallel to the axis of the auxiliary member 400, the vertical load sensing element 300 is connected to one end of the auxiliary member 400, and the signal output wire 440 connecting the vertical load sensing element 300 and the test instrument passes through the through hole and extends out of the monitoring support.
The signal output wire 440 connecting the vertical load sensing element 300 and the test instrument extends out of the monitoring support through the through hole on the auxiliary member 400, the auxiliary member 400 plays a role in protecting the signal output wire 440, and interference and line damage to signals in the transmission process are reduced.
The auxiliary member 400 and the support tub ring 100 and the support upper annular wall 500 may be connected by means of a snap-fit or screw-connection, and in this embodiment, the auxiliary member 400 is rod-shaped, and the auxiliary member 400 and the support tub ring 100, and the auxiliary member 400 and the support upper annular wall 500 are screw-connected.
External threads are arranged on the outer wall of the auxiliary member 400, and threaded holes matched with the auxiliary member 400 are arranged on the side wall of the support basin ring 100 and the side wall of the support upper annular wall 500. The auxiliary member 400 is screw-coupled with the support tub ring 100, and the auxiliary member 400 is easily disassembled while improving the coupling stability of the auxiliary member 400 and the support tub ring 100.
Further, the center of the vertical load cell 300 is in the same plane as the center layer of the load cell 200.
The axis of the mounting hole on the side wall of the support basin 100 passes through the center layer of the force measuring plate 200, after the auxiliary member 400 is mounted in the mounting hole, the axis of the auxiliary member 400 coincides with the axis of the mounting hole, so that the center of the vertical load sensing element 300 coincides with the axis of the auxiliary member 400, and after the vertical load sensing element 300 is mounted in the support basin 100, the center of the vertical load sensing element 300 and the center layer of the force measuring plate 200 are positioned on the same plane, thereby improving the measurement precision.
Further, the number of the auxiliary members 400 is plural, the plurality of auxiliary members 400 are uniformly distributed along the circumferential direction of the support tub ring 100, and each auxiliary member 400 is provided with the vertical load sensing element 300.
The side wall of the support basin ring 100 is provided with a plurality of mounting holes for mounting the auxiliary members 400, the number of the mounting holes is equal to that of the auxiliary members 400, the axes of the mounting holes are located on the same horizontal plane with the center layer of the force measuring plate 200, the auxiliary members 400 are in one-to-one correspondence with the mounting holes to be connected with the support basin ring 100, and each auxiliary member 400 is provided with a vertical load sensing element 300 in contact with the side wall of the force measuring plate 200. A plurality of auxiliary members 400 and vertical load sensing elements 300 are provided on the side walls of the support tub ring 100 to better measure the load received by the monitor support.
Further, the number of the auxiliary members 400 is plural, the plurality of auxiliary members 400 are uniformly distributed along the circumferential direction of the upper support ring wall 500, and each auxiliary member 400 is provided with a horizontal load sensing element 600.
The number of the auxiliary members 400 ranges from 2 to 8, in this embodiment, the number of the auxiliary members 400 is 4, and as shown in fig. 3, the 4 auxiliary members 400 are uniformly distributed along the circumferential direction of the support upper ring wall 500, two of them are distributed along the bridge direction, and the other two are distributed along the transverse bridge direction, and each of the auxiliary members 400 is provided with one horizontal load sensing element 600 on the end face opposite to the support basin ring 100 and is in contact with the support basin ring 100.
The number of horizontal load sensing elements 600 is plural to better monitor the horizontal load to which the monitor mount is subjected.
The invention provides a monitoring support, comprising: the support basin ring 100, the force measuring plate 200 and the vertical load sensing element 300, wherein the force measuring plate 200 is made of elastic materials and is arranged in the support basin ring 100; the side wall of the support basin ring 100 is connected with a detachable auxiliary member 400, the auxiliary member 400 penetrates through the side wall of the support basin ring 100, and the vertical load sensing element 300 is arranged at one end of the auxiliary member 400, which is positioned in the support basin ring 100, and is in contact with the side wall of the force measuring plate 200. The vertical load sensing element 300 in the monitoring support provided by the invention is detachably connected with the support basin 100 through the auxiliary member 400, and when the vertical load sensing element 300 fails, the auxiliary member 400 can be detached to replace the vertical load sensing element 300.
Compared with the prior art, the monitoring support provided by the embodiment of the invention avoids the situation that the vertical load sensing element 300 is in a severe stress state for a long time, prolongs the service life of the vertical load sensing element 300, and solves the technical problems of maintenance and replacement of the vertical load sensing element 300 by the vertical load sensing element 300 independent of the main body structure of the support, thereby realizing long-term monitoring of the monitoring support.
Example two
Another object of the embodiments of the present invention is to provide an intelligent monitoring system.
The intelligent monitoring system provided by the embodiment of the invention comprises the monitoring support of the technical scheme.
The hardware of the intelligent monitoring system comprises a multichannel sensing signal adaptation module, a data acquisition board card and the like; the software of the intelligent monitoring system mainly comprises a data acquisition driving program package, an application programming interface and a virtual instrument.
The intelligent monitoring system sets a corresponding threshold value, and in the monitoring process, when the load sensed by the sensor exceeds the threshold value, the system starts to automatically monitor, store related data and send a reminding alarm to a manager.
The monitoring support in the intelligent monitoring system provided by the embodiment of the invention comprises: the support basin ring 100, the force measuring plate 200 and the vertical load sensing element 300, wherein the force measuring plate 200 is made of elastic materials and is arranged in the support basin ring 100; the side wall of the support basin ring 100 is connected with a detachable auxiliary member 400, the auxiliary member 400 penetrates through the side wall of the support basin ring 100, and the vertical load sensing element 300 is arranged at one end of the auxiliary member 400, which is positioned in the support basin ring 100, and is in contact with the side wall of the force measuring plate 200. Compared with the prior art, the vertical load sensing element 300 in the monitoring support is detachably connected with the support basin 100 through the auxiliary member 400, and when the vertical load sensing element 300 fails, the auxiliary member 400 can be detached to replace the vertical load sensing element 300.
Compared with the prior art, the monitoring support provided by the embodiment of the invention avoids the situation that the vertical load sensing element 300 is in a severe stress state for a long time, prolongs the service life of the vertical load sensing element 300, and solves the technical problems of maintenance and replacement of the vertical load sensing element 300 by the vertical load sensing element 300 independent of the main body structure of the support, thereby realizing long-term monitoring of the monitoring support.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (7)
1. A monitor support, comprising: the support basin ring, the force measuring plate and the vertical load sensing element are arranged in the support basin ring, and the force measuring plate is made of elastic materials;
the side wall of the support basin ring is connected with a detachable auxiliary member, the auxiliary member penetrates through the side wall of the support basin ring, and the vertical load sensing element is arranged at one end of the auxiliary member, which is positioned in the support basin ring, and is in contact with the side wall of the force measuring plate;
the monitoring support also comprises a support top plate, the support top plate is arranged above the support basin ring, and the lower end surface of the support top plate is provided with a support upper annular wall; the upper annular wall of the support is connected with a detachable auxiliary member, the auxiliary member penetrates through the upper annular wall of the support to be in contact with the support basin ring, and a horizontal load sensing element is arranged in one end of the auxiliary member, which is in contact with the support basin ring;
when the support top plate receives horizontal load, the support top plate moves relative to the support basin ring, and the support basin ring is deformed by horizontal pushing force of the upper annular wall of the support;
one end of the auxiliary component, which is positioned in the monitoring support, is provided with a protection structure;
the auxiliary member is in a rod shape, one end of the auxiliary member, which is positioned in the support basin ring, is provided with a mounting groove, a protective cover plate is arranged at the opening of the mounting groove, an insulating ring sleeve is arranged in the mounting groove, piezoelectric materials are filled in the insulating ring sleeve, electrodes are arranged in the piezoelectric materials and are connected with a socket through signal output wires, the socket is arranged at one end, which is positioned outside the support basin ring, of the auxiliary member, a plug-in protective plug is arranged in the socket, and a sensing element is arranged in the mounting groove.
2. The monitor support according to claim 1, wherein said auxiliary member is provided with a through hole, and the axial direction of said through hole is the same as the longitudinal direction of said auxiliary member.
3. The monitor support according to claim 1, wherein said auxiliary member is rod-shaped, said auxiliary member being threadably connected to said support bowl and said auxiliary member being threadably connected to said support upper annular wall.
4. The monitor bracket of claim 1 wherein the center of the vertical load sensing element is in the same plane as the center layer of the load plate.
5. The monitor support according to claim 1, wherein said number of auxiliary members is a plurality, said plurality of auxiliary members being evenly distributed along the circumference of said support collar, each of said auxiliary members being provided with said vertical load sensing element.
6. The monitor support according to claim 1, wherein said plurality of auxiliary members is a plurality, said plurality of auxiliary members being evenly distributed along the circumference of the upper annular wall of said support, each of said auxiliary members being provided with said horizontal load sensing element.
7. An intelligent monitoring system, characterized in that it comprises a monitoring support according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711209811.2A CN107941398B (en) | 2017-11-27 | 2017-11-27 | Monitoring support and intelligent monitoring system |
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| CN110617909B (en) * | 2019-10-17 | 2022-04-01 | 杭州传感器有限公司 | Plane bearing capacity detection device and spherical support |
| CN111999019B (en) * | 2020-08-26 | 2021-05-25 | 成都济通路桥科技有限公司 | Novel calibration method for bridge support device in operation period |
| CN112284612B (en) * | 2020-10-23 | 2022-04-01 | 成都济通路桥科技有限公司 | Operation period supporting device serial type calibration method and system |
| WO2022083054A1 (en) * | 2020-10-23 | 2022-04-28 | 成都济通路桥科技有限公司 | Method for calibrating in-service bridge force-measurement bearing support on basis of accurate determination of coefficient of friction |
| CN114993536A (en) * | 2022-07-09 | 2022-09-02 | 西安华盾工程科技有限公司 | Force measuring method |
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