A giant load-bearing corbel monitoring device and a weight monitoring method

Abstract

The present invention belongs to the technical field of building construction, and particularly relates to a giant load-bearing bracket monitoring device and a weight monitoring method. It includes a support bracket assembly, a sensor installation assembly, a compression carrier, a monitoring assembly, and a magnetic column. A magnet groove, a column hole, and a preset groove are provided at the front end of the telescopic leg of the support bracket assembly, and a number of locking grooves are arranged along the radial direction on the inner wall of the preset groove; the magnetic hammer of the sensor installation assembly is arranged in a demagnetization sleeve, the demagnetization sleeve is arranged in the magnet groove, the bottom end of the magnetic force coil is fixed in the spring hole at the bottom of the magnet groove, the top end of the magnetic force coil is connected to a wire, and the expansion and contraction of the magnetic force coil drives the slack movement of the wire; the compression carrier includes a rigid body and radial keys, the rigid body is arranged in the preset groove, and a number of radial keys are arranged on the outer wall of the rigid body; the monitoring assembly is axially distributed around the rigid body, and the monitoring assembly includes multiple groups of light wave force measuring columns and light wave temperature measuring columns connected in series end to end; the magnetic column is arranged in the reserved stud hole of the compression carrier and is fixed by magnetic adsorption.

Description

Technical Field

[0001] The present invention belongs to the technical field of building construction, and particularly relates to a giant load-bearing bracket monitoring device and a weight monitoring method. Background Art

[0002] As a traditional infrastructure industry, the building construction field invests a large amount of manpower, material resources and equipment in project construction. Due to the relatively backward development of building informatization means, many construction links lack effective supervision, resulting in the occurrence of construction risk accidents. Generally, the weight of a climbing machine for super high-rise buildings is about 1000t - 2000t, and its weight is shared by about 30 - 60t supporting legs. The weight of a climbing tower crane is 200t - 500t, and its weight is shared by 4 supporting legs. The cast-in-place concrete in building construction is relatively rough, while the design and installation dimensional accuracy of large equipment machinery structures is relatively high. Therefore, during the support process of the equipment, it is extremely easy to be troubled by uneven pressure distribution in the support system. When the pressure on the supporting bracket is too large, the attached concrete structure will be crushed, which is extremely likely to cause construction risk accidents. Therefore, it is necessary to monitor the stress of the support structure.

[0003] Currently, the support pressure is mainly sensed by embedding pressure box sensors, but this method is troublesome to operate and requires manual labor to complete. Moreover, the pressure box monitoring method is not suitable for long-term monitoring. If it is necessary to monitor the entire construction period of the equipment, pressure box sensors need to be continuously invested, and the monitoring cost of such repeated operations will increase significantly, and it will also increase the workload of workers additionally. In addition, the designed measuring range of pressure box sensors on the market is generally small, and the volume of large measuring range sensors is very large, and it is impossible to weigh large equipment during the construction of super high-rise buildings.

[0004] Therefore, for the support system of large equipment in the construction of super high-rise buildings, it is urgent to develop a giant load-bearing bracket monitoring device and a weight monitoring method with a large measuring range, small volume, high precision and easy installation.

[0005] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention, and should not be regarded as an admission or any form of suggestion that this information is prior art known to those of ordinary skill in the art. Summary of the Invention

[0006] The present invention provides a giant load-bearing bracket monitoring device and a weight monitoring method for weighing the load on key supporting brackets of large equipment in building construction during the construction process and for real-time high-precision monitoring of the weighing pressure.

[0007] To solve the above technical problems, the present invention includes the following technical solutions:

[0008] A giant load-bearing bracket monitoring device includes:

[0009] Support bracket assembly, the support bracket assembly includes telescopic legs and connecting ears, a vertical through hole is provided at the front end of the telescopic legs, the vertical through hole is successively a magnet groove, a column hole and a preset groove from top to bottom, and a plurality of locking grooves are arranged along the radial direction on the inner wall of the preset groove;

[0010] Sensing installation assembly, the sensing installation assembly includes an adsorption assembly, a magnetic force ring, a magnetic hammer, a wire drawing and a demagnetizing sleeve, the magnetic hammer is arranged in the demagnetizing sleeve, the demagnetizing sleeve is arranged in the magnet groove, the bottom end of the magnetic force ring is fixed in the spring hole at the bottom of the magnet groove, the top end of the magnetic force ring is connected to the wire drawing, and the expansion and contraction of the magnetic force ring drives the relaxation movement of the wire drawing;

[0011] Compressive carrier, the compressive carrier includes a rigid body and radial keys, the rigid body is arranged in the preset groove, and a plurality of the radial keys are arranged on the outer wall of the rigid body;

[0012] Monitoring assembly, the monitoring assembly is axially distributed around the rigid body, the monitoring assembly includes multiple groups of light wave force measuring columns and light wave temperature measuring columns connected in series end to end;

[0013] Magnetic column, the magnetic column is arranged in the reserved stud hole of the compressive carrier and is fixed by magnetic adsorption.

[0014] Furthermore, an optical fiber channel is also provided in the support bracket assembly, the optical fiber channel is located inside the telescopic legs and penetrates through the preset groove.

[0015] Furthermore, the light wave force measuring column and the light wave temperature measuring column are both fixed on the side wall of the rigid body through adjustable bases, the light wave force measuring column and the light wave temperature measuring column are connected by a light wave conductor, and the output end of the light wave conductor is connected to an external collector through the optical fiber channel.

[0016] Furthermore, the sensing installation assembly also includes a guide wheel, a connecting base, an elastic ring, a movable key and a sliding roller, the connecting base, the elastic ring, the movable key and the sliding roller are connected in sequence and are arranged in the locking groove, and the wire drawing passes through the guide wheel, the connecting base and the elastic ring in sequence and is fixed to the rear end of the movable key.

[0017] Furthermore, the stud hole is arranged at the central axis of the compressive carrier, and a sinking groove is provided at the bottom of the stud hole.

[0018] Furthermore, the magnetic column includes an alloy column and a magnetic pole head, the alloy column is arranged in the rigid body, and the magnetic pole head penetrates through the column hole.

[0019] Furthermore, the demagnetizing sleeve is a thin-walled internal hollow cuboid, its upper end is completely open, the lower end is a toroidal surface, and a hole is reserved in the middle for accommodating the magnetic hammer.

[0020] The present invention also provides a method for weight monitoring using a giant load-bearing corbel monitoring device, and the method includes:

[0021] Step S1: Provide the aforementioned giant load-bearing corbel monitoring device for standby.

[0022] Step S2: Complete the installation of the monitoring components:

[0023] Assembly stage: Arrange three groups of optical wave force columns and optical wave temperature columns on the side wall of the rigid body at intervals through adjustable bases. The optical wave force columns and optical wave temperature columns are connected in series through optical wave conductors to complete the assembly of the monitoring components, and place them in the preset groove.

[0024] Installation stage: When the monitoring components move forward, the radial key and the movable key match each other. When the rigid body is placed under the preset groove, the radial key moves forward and first contacts the roller. The roller is pressed and retracts, causing the movable key to retract into the locking groove. When the monitoring components completely enter the installation position, the radial key crosses the movable key, and the pressure of the elastic ring is released. The movable key extends out of the locking groove, and the movable key extends below the radial key to play a blocking role to prevent the monitoring components from falling; Place the demagnetizing sleeve in the magnet groove, and place the magnetic hammer in the reserved hole of the demagnetizing sleeve.

[0025] Step S3: Calculate the wavelength of the optical wave temperature column affected by temperature through the data recorded by the collector. Through first-order linear fitting, obtain the influence of the temperature coefficient on the wavelength. Through calibration, the average temperature coefficient of the three optical wave temperature columns is obtained as K2.

[0026] Step S4: Calculate the wavelengths of the three optical wave force columns affected by temperature through the data recorded by the collector. Through first-order linear fitting, obtain the influence of the temperature coefficient on the wavelength. Through calibration, the average temperature coefficient of the optical wave force columns is obtained as K3.

[0027] Step S5: Define the current wavelength and initial wavelength of the three optical wave temperature columns as A1' and A1 respectively, and the current wavelength and initial wavelength of the average wavelength of the optical wave force columns as A2' and A2 respectively. The calculation formula for the wavelength value A' of the pressure grating after average wavelength temperature compensation is formula (1):

[0028] A' = (A2' - A2) - (A1' - A1) / K2 * K3 Formula (1);

[0029] In the formula, the unit of A' is: nm

[0030] Step S6: Through pressure calibration, obtain the A' values when the pressure gauge is under pressure of 0t, 5t, 10t....120t respectively. Then through second-order fitting, find the corresponding relationship between the wavelength value of the average wavelength of the optical wave force column after temperature compensation and the pressure F as formula (2):

[0031] F=a A' 2 +b A'+c, formula (2);

[0032] Where a, b, c are constants, and the unit of pressure F is: t;

[0033] When the corbel is under pressure, the current A' value can be obtained; by substituting the A' value into formula (1), the current pressure value can be calculated.

[0034] Compared with the prior art, the present invention has the following beneficial technical effects:

[0035] The giant load-bearing corbel monitoring device provided by the present invention includes a supporting corbel assembly, a sensor installation assembly, a pressure-resistant carrier, a monitoring assembly and a magnetic column. The front end of the telescopic leg of the supporting corbel assembly is provided with a vertical through hole, and the vertical through hole is sequentially composed of a magnet slot, a column hole and a preset slot from top to bottom, and a plurality of locking slots are radially arranged on the inner wall of the preset slot; the sensor installation assembly includes an adsorption assembly, a magnetic ring, a magnetic hammer, a wire drawing and a demagnetization sleeve, the magnetic hammer is arranged in the demagnetization sleeve, the demagnetization sleeve is arranged in the magnet slot, the bottom end of the magnetic ring is fixed in the spring hole at the bottom of the magnet slot, the top end of the magnetic ring is connected to the wire drawing, and the expansion and contraction of the magnetic ring drives the relaxation movement of the wire drawing; the pressure-resistant carrier includes a rigid body and a radial key, the rigid body is arranged in the preset slot, and a plurality of radial keys are arranged on the outer wall of the rigid body; the monitoring assembly is axially distributed around the rigid body, and the monitoring assembly includes multiple groups of light wave force measuring columns and light wave temperature measuring columns connected in series end to end; the magnetic column is arranged in the reserved stud hole of the pressure-resistant carrier and is fixed by magnetic adsorption. The monitoring component is modular and, after integration, is installed within the prefabricated slots of the support bracket assembly. The installation process is simple, saving manual labor. The monitoring component is easy to disassemble and reusable. The built-in optical force and temperature measuring columns utilize scientific data acquisition principles, resulting in stable and reliable monitoring data and error compensation for high monitoring accuracy. This monitoring-enabled support bracket assembly can help improve the operating efficiency of construction equipment and reduce its energy consumption. The small size and large measurement range of the monitoring component ensure construction quality and significantly enhance the visual control of construction safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A three-dimensional diagram of a giant load-bearing corbel monitoring device according to an embodiment of the present invention;

[0037] Figure 2 for Figure 1 A top view of

[0038] Figure 3 for Figure 2 AA cross-sectional view;

[0039] Figure 4 for Figure 2 BB cross-sectional view;

[0040] Figure 5 is the bottom view of Figure 1 ;

[0041] Figure 6 is the perspective view of the sensing installation component in the giant load-bearing bracket monitoring device according to an embodiment of the present invention;

[0042] Figure 7 is the front view of the sensing installation component in the giant load-bearing bracket monitoring device according to an embodiment of the present invention;

[0043] Figure 8 is the installation schematic diagram of the wire drawing in the sensing installation component of the giant load-bearing bracket monitoring device according to an embodiment of the present invention;

[0044] Figure 9 is one of the structural schematic diagrams of the monitoring component in the giant load-bearing bracket monitoring device according to an embodiment of the present invention;

[0045] Figure 10 is the second structural schematic diagram of the monitoring component in the giant load-bearing bracket monitoring device according to an embodiment of the present invention;

[0046] Figure 11 is the structural schematic diagram of the compressive load carrier in the giant load-bearing bracket monitoring device according to an embodiment of the present invention;

[0047] Figure 12 is the structural schematic diagram of the magnetic column in the giant load-bearing bracket monitoring device according to an embodiment of the present invention;

[0048] Figure 13 is the schematic diagram of the monitoring pressure fitting curve of the giant load-bearing bracket monitoring device according to an embodiment of the present invention.

[0049] In the figure, 100 - support bracket assembly, 101 - telescopic leg, 102 - connecting ear, 103 - magnet groove, 104 - column hole, 105 - preset groove, 106 - optical fiber channel, 107 - spring hole, 108 - reinforcing rib, 109 - locking groove; 200 - sensing installation component, 201 - magnetic hammer, 202 - demagnetizing sleeve, 203 - magnetic force ring, 204 - wire drawing, 205 - guide wheel, 206 - base, 207 - elastic ring, 208 - movable key, 209 - sliding roller; 300 - compressive load carrier, 301 - rigid body, 302 - radial key, 303 - stud hole; 400 - monitoring component, 401 - light wave force measuring column, 402 - light wave temperature measuring column, 403 - adjustable base, 404 - light wave conductor; 500 - magnetic column, 501 - alloy column, 502 - magnetic pole head. Detailed implementation manners

[0050] The following further describes in detail the giant load-bearing bracket monitoring device and the weight monitoring method proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the attached drawings are all in a very simplified form and use non-precise scales, only for the purpose of conveniently and clearly assisting in explaining the purpose of the embodiments of the present invention. For the convenience of narration, the "upper" and "lower" described below are in the same direction as the upper and lower of the attached drawings, but this cannot be a limitation of the technical solution of the present invention.

[0051] Embodiment 1

[0052] The following combines Figures 1 to 13 to describe in detail the structural composition of the giant load-bearing bracket monitoring device of the present invention.

[0053] Please refer to Figures 1 to 13 A giant load-bearing bracket monitoring device and a weight monitoring method, including:

[0054] The bottom of the magnetic ring is fixedly bonded in the spring hole. The top end of the magnetic ring is connected to the wire drawing, and the other end of the wire drawing is connected to the movable key. When the wire drawing is stressed, it is retracted. The telescopic movement of the wire drawing can be guided by the guide wheel, the elastic ring is compressed, and the connected movable key retracts into the locking groove; several sliding rollers are arranged at the front end of the movable key to push the monitoring component into the preset groove.

[0055] The giant load-bearing bracket monitoring device includes a support bracket assembly 100, a sensor installation assembly 200, a compressive carrier 300, a monitoring assembly 400, and a magnetic column 500. The support bracket assembly 100 includes a telescopic leg 101 at the front end and a connecting ear 102 at the rear end. A vertical through hole is provided at the front end of the telescopic leg 101. The vertical through hole is successively a magnet groove 103, a column hole 104, and a preset groove 105 from top to bottom. A plurality of locking grooves 109 are arranged along the radial direction on the inner wall of the preset groove 105; the sensor installation assembly 200 includes an adsorption assembly (not shown), a magnetic ring 203, a magnetic hammer 201, a wire drawing 204, and a demagnetizing sleeve 202. The magnetic hammer 201 is arranged in the demagnetizing sleeve 202, the demagnetizing sleeve 202 is arranged in the magnet groove 103, the bottom end of the magnetic ring 203 is fixed in the spring hole 107 at the bottom of the magnet groove 103, the top end of the magnetic ring 203 is connected to the wire drawing 204, and the telescopic movement of the magnetic ring 203 drives the relaxation movement of the wire drawing 204; the compressive carrier 300 includes a rigid body 301 and a radial key 302. The rigid body 301 is arranged in the preset groove 105, and a plurality of radial keys 302 are arranged on the outer wall of the rigid body 301; the monitoring assembly 400 is axially distributed around the rigid body 301. The monitoring assembly 400 includes multiple groups of light wave force measuring columns 401 and light wave temperature measuring columns 402 connected in series at the head and tail; the magnetic column 500 is arranged in the reserved stud hole 303 of the compressive carrier 300 and is fixed by magnetic adsorption.

[0056] Specifically, the supporting bracket assembly 100 is made of high-strength steel and has strong compressive capacity. The main carrier is the telescopic leg 101. The rear end of the telescopic leg 101 is connected with a connecting ear 102, and the connecting ear 102 is used to connect with an external telescopic oil cylinder. A magnet groove 103 is arranged at the front end of the bracket. A column hole 104 and a preset groove 105 are arranged in communication from top to bottom. A number of groups of reinforcing ribs 108 are arranged along the axial direction of the inner wall of the preset groove 105, and a number of groups of locking grooves 109 are arranged along the radial direction of the inner wall of the preset groove 105; the optical fiber channel 106 is arranged inside the telescopic leg 101 and penetrates through the preset groove 105; a number of groups of spring holes 107 are arranged at the bottom of the magnet groove 103. The sensing installation assembly 200 mainly includes a magnet adsorption assembly and corresponding parts; the magnetic hammer 201 is arranged inside the demagnetizing sleeve 202, the demagnetizing sleeve 202 is arranged inside the magnet groove 103, and the bottom of the magnet groove 103 is grooved for transmitting magnetic lines of force; the lower end of the magnetic force ring 203 is fixedly arranged in the spring hole 107, its upper end is connected with a wire drawing 204, the wire drawing 204 is arranged inside the telescopic leg 101, and the other end of the wire drawing 204 is connected to the rear end of the movable key 208 through a guide wheel 205, a connecting base 206, and an elastic ring 207 in sequence. A number of sliding rollers 209 are arranged at the front end of the movable key 208. The above connecting base 206, elastic ring 207, and movable key 208 are connected in sequence and are all arranged in the locking groove 109.

[0057] The compressive carrier 300 includes a rigid body 301, a radial key 302, and a stud hole 303. The rigid body 301 is arranged inside the preset groove 105, and a number of radial keys 302 are arranged on the outer side of its structure. The number of radial keys 302 is the same as that of the movable keys 208; a stud hole 303 is arranged at the central axis of the rigid body 301, and a counterbore is arranged at the bottom of the stud hole 303.

[0058] The monitoring assembly 400 includes N groups of optical wave force measuring columns 401 and N groups of optical wave temperature measuring columns 402. The optical wave force measuring columns 401 and the optical wave temperature measuring columns 402 are connected end to end and are axially distributed around the rigid body 301. Two adjustable bases 403 are fixedly arranged on the surface of the rigid body 301, and the number of them is N pairs. The optical wave force measuring columns 401 and the optical wave temperature measuring columns 402 are fixed by the adjustable bases 403; the optical wave force measuring columns 401 and the optical wave temperature measuring columns 402 are connected in series, and the addresses of their data are F01, F02....Fn. The optical wave conductor 404 is a signal transmission wire, connecting the optical wave force measuring columns 401 and the optical wave temperature measuring columns 402, and its output end is arranged in the optical fiber channel 106 for connecting an external acquisition device.

[0059] The magnetic force column 500 includes an alloy column 501 and a magnetic pole head 502. The magnetic force column 500 is arranged in the stud hole 303 reserved by the compressive carrier 300. The alloy column 501 is placed inside the rigid body 301, and the magnetic pole head 502 penetrates through the column hole 104. The connection between the magnetic force column 500 and the compressive carrier 300 is magnetic adsorption, rather than the traditional bolt connection.

[0060] Example 2

[0061] The present invention also provides a method for weight monitoring using a giant load-bearing bracket monitoring device, and the method includes the following steps:

[0062] I. Installation of the monitoring component 400: The optical wave force measuring column 401 and the optical wave temperature measuring column 402 are physical objects for on-site monitoring of the bracket pressure. First, the optical wave force measuring column 401 and the optical wave temperature measuring column 402 are arranged at intervals. In order to ensure the accuracy of the bracket pressure monitoring data, generally 3 to 6 groups of the optical wave force measuring column 401 and the optical wave temperature measuring column 402 are used, and three groups are used in this embodiment. In the first step, the adjustable bases 403 are micro-welded to the surface of the rigid body 301 in a group of 2, and each group is spaced 60 degrees apart; the adjustable bases 403 adjust their fastening force by screws; in the second step, the optical wave force measuring column 401 and the optical wave temperature measuring column 402 are sequentially installed on the adjustable bases, but no fastening force is applied. The optical wave conductors 404 serially connect the optical wave force measuring column 401 and the optical wave temperature measuring column 402 individually in sequence; the optical wave force measuring column 401 and the optical wave temperature measuring column 402 are connected end to end, the first acquisition element is the optical wave force measuring column 401, and the end acquisition element is the optical wave temperature measuring column 402. The end of the optical wave conductor 404 is finally connected to an external collector through the optical fiber channel 106 built in the bracket.

[0063] II. Assembly of the sensing installation component 200; The wire drawing 204 is made of steel wire and runs through the inside of the telescopic leg 101; the number of the wire drawings 204 is the same as the number of the magnetic force rings 203, and mainly drives the relaxation movement of the wire drawing 204 through the expansion and contraction of the magnetic force rings 203; the bottom of the magnetic force ring 203 is fixed in the spring hole 107 by a cementing method, and the upper part of the magnetic force ring 203 is connected to the wire drawing 204. The demagnetizing sleeve 202 is installed. The demagnetizing sleeve 202 is a thin-walled and internally hollow cuboid with one end completely open; one end of the bottom is an annular surface, and a hole is reserved in the middle for installing the magnetic column 500; the design of the demagnetizing sleeve 202 avoids the mutual attraction between the magnetic hammer 201 and the load-bearing bracket monitoring device, and ensures that the magnetic hammer 201 and the magnetic column 500 can be attracted. The other end of the wire drawing 204 is connected to the movable key 208. When the wire drawing 204 is stressed, it is retracted. The expansion and contraction of the wire drawing 204 can be guided by the guide wheel 205, the elastic ring 207 is compressed, and the connected movable key 208 retracts into the locking groove 109; several sliding rollers 209 are arranged at the front end of the movable key 208 to realize the push-in installation of the monitoring component 400, and the installation method is simpler and faster.

[0064] III. After the monitoring component 400 is assembled, it is placed in the preset slot 105. When the monitoring component 400 advances, the radial key 302 and the movable key 20 match each other and are in corresponding positions. When the rigid body 301 is placed under the preset slot 105, when the radial key 302 advances, it first contacts the roller 209. The roller 209 is pressed and retracts. At the same time, the movable key 208 retracts into the locking slot 109. When the monitoring component 400 completely enters the installation position, the radial key 302 passes over the movable key 208, the pressure of the elastic ring 207 is released, the movable key 208 extends out of the locking slot 109, and the movable key 208 extends under the radial key 302 to play a blocking role to prevent the monitoring component 400 from falling. Then, the demagnetizing sleeve 202 and the magnetic hammer 201 are installed. The demagnetizing sleeve 202 is placed in the magnet slot 103, and then the magnetic hammer 201 is installed. Then, the magnetic force column 500 is installed. The magnetic force column 500 is installed in the stud hole 303 of the compressive carrier 300. Because there is a hole at the bottom of the demagnetizing sleeve 202, the magnetic lines of force can pass through the hole, and the magnetic hammer 201 can be adsorbed to the magnetic force column 500, which not only fixes the magnetic hammer 201 but also fixes the monitoring component 400. When the magnetic hammer 201 is pulled out, the magnetic hammer 201 rises, the magnetic force ring 203 becomes longer under the attraction of the magnetic hammer 201, the wire drawing 204 is tightened, and then the movable key 208 retracts, and the monitoring component 400 can withdraw from the telescopic leg 101 to achieve cyclic reuse.

[0065] IV. Bracket pressure monitoring:

[0066] 1. Calculate the wavelengths of the optical wave temperature measuring columns 402 for the influence of temperature. Through first-order linear fitting, obtain the influence of the temperature coefficient on the wavelength. Through calibration, the average temperature coefficient of the three optical wave temperature measuring columns 402 is obtained as K2;

[0067] 2. Calculate the wavelengths of the three optical wave force measuring columns 401 for the influence of temperature. Through first-order linear fitting, obtain the influence of the temperature coefficient on the wavelength. Through calibration, the average temperature coefficient of the three optical wave force measuring columns 401 is obtained as K3;

[0068] 3. Define the current wavelengths and initial wavelengths of the three optical wave temperature measuring columns 402 as A1’ and A1 respectively, the current wavelengths and initial wavelengths of the average wavelengths of the optical wave force measuring columns 401 as A2’ and A2 respectively. The calculation formula for the wavelength value A’ after temperature compensation of the average wavelength of the pressure grating is formula (1):

[0069] A’ = (A2’ - A2) - (A1’ - A1) / K2 * K3 Formula (1);

[0070] In the formula, the unit of A’ is: nm;

[0071] Step S6: Through pressure calibration, obtain the A' values of the pressure gauge when it is under pressure of 0t, 5t, 10t....120t respectively. Then, through quadratic fitting, that is, monitoring the pressure fitting curve, find the corresponding relationship between the wavelength value of the optical wave force column after average wavelength temperature compensation and the pressure F, which is formula (2):

[0072] F = aA' 2 + bA' + c, formula (2);

[0073] In the formula, a, b, and c are constants, and the unit of the pressure F is: t;

[0074] When the corbel is under pressure, the current A' value can be obtained; substituting the A' value into formula (1), the current pressure value can be calculated.

[0075] The monitoring results can be illustrated by the following two specific examples: (1). Using the fitted corbel support pressure calculation formula, randomly conduct pressure tests. The measured pressure value is 56.8t, and the data measured by the software is 57.12t, with a measurement error of 0.32t;

[0076]

[0077] (2). Using the fitted corbel support pressure calculation formula, randomly conduct pressure tests. The measured pressure value is 60.4t, and the data measured by the software is 60.76t, with a measurement error of 0.36t;

[0078]

[0079] It can be seen that the weight monitoring method of the present invention using the giant load-bearing corbel monitoring device has stable and reliable monitoring data, can achieve error compensation, and has a high monitoring accuracy.

[0080] The above examples are the preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples. The above-described examples only express several embodiments of the present invention, and their descriptions are relatively specific and detailed, but they cannot be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A monitoring device for a giant load-bearing bracket, characterized in that, Comprising: A supporting bracket assembly, the supporting bracket assembly includes a telescopic leg and a connecting ear, a vertical through hole is provided at the front end of the telescopic leg, the vertical through hole is successively a magnet groove, a column hole and a preset groove from top to bottom, and a plurality of locking grooves are arranged along the radial direction on the inner wall of the preset groove; A sensing installation assembly, the sensing installation assembly includes an adsorption assembly, a magnetic force ring, a magnetic hammer, a wire drawing and a demagnetizing sleeve, the magnetic hammer is arranged in the demagnetizing sleeve, the demagnetizing sleeve is arranged in the magnet groove, the bottom end of the magnetic force ring is fixed in a spring hole at the bottom of the magnet groove, the top end of the magnetic force ring is connected with the wire drawing, and the expansion and contraction of the magnetic force ring drives the relaxation movement of the wire drawing; A compressive carrier, the compressive carrier includes a rigid body and radial keys, the rigid body is arranged in the preset groove, and a plurality of the radial keys are arranged on the outer wall of the rigid body; a reserved stud hole is arranged at the central axis of the compressive carrier, and a sink is arranged at the bottom of the reserved stud hole; A monitoring assembly, the monitoring assembly is axially distributed around the rigid body, and the monitoring assembly includes multiple groups of light wave force measuring columns and light wave temperature measuring columns connected in series end to end; A magnetic column, the magnetic column is arranged in the reserved stud hole of the compressive carrier and is fixed by magnetic adsorption.

2. The giant load-bearing bracket monitoring device according to claim 1, characterized in that A fiber optic channel is further arranged in the supporting bracket assembly, the fiber optic channel is located inside the telescopic leg and penetrates through the preset groove.

3. The giant load-bearing corbel monitoring device according to claim 2, characterized in that, The light wave force measuring column and the light wave temperature measuring column are both fixed on the side wall of the rigid body through adjustable bases, the light wave force measuring column and the light wave temperature measuring column are connected through a light wave conductor, and the output end of the light wave conductor is connected with an external collector through the fiber optic channel.

4. The giant load-bearing bracket monitoring device according to claim 1, characterized in that The sensing installation assembly further includes a guide wheel, a connecting base, an elastic ring, a movable key and a sliding roller, the connecting base, the elastic ring, the movable key and the sliding roller are connected in sequence and are arranged in the locking groove, and the wire drawing passes through the guide wheel, the connecting base and the elastic ring in sequence and is fixed to the rear end of the movable key.

5. The giant load-bearing bracket monitoring device according to claim 1, characterized in that, The magnetic column includes an alloy column and a magnetic pole head, the alloy column is arranged in the rigid body, and the magnetic pole head penetrates through the column hole of the vertical through hole.

6. The giant load-bearing bracket monitoring device according to claim 1, characterized in that, The demagnetizing sleeve is a thin-walled and internally hollow cuboid, its upper end is completely open, its lower end is an annular surface, and a reserved hole is provided in the middle for accommodating the magnetic hammer.

7. A weight monitoring method using a giant load-bearing bracket monitoring device, characterized in that, Comprising: Step S1: Provide the spare of the giant load-bearing bracket monitoring device described in claim 4, Step S2: Complete the installation of the monitoring assembly: Assembly stage: Arrange three groups of light wave force measuring columns and light wave temperature measuring columns on the side wall of the rigid body at intervals through adjustable bases, the light wave force measuring columns and the light wave temperature measuring columns are connected in series through a light wave conductor, complete the assembly of the monitoring assembly, and place it in the preset groove; Installation stage: When the monitoring assembly advances, the radial key and the movable key match each other. When the rigid body is placed under the preset groove, the radial key advances and first contacts the sliding roller, and the sliding roller is pressed back, so that the movable key retracts into the locking groove. When the monitoring assembly completely enters the installation position, the radial key crosses the movable key, the pressure of the elastic ring is released, the movable key extends out of the locking groove, and the movable key extends under the radial key to play a blocking role to prevent the monitoring assembly from falling; Arrange the demagnetizing sleeve in the magnet groove, and place the magnetic hammer into the reserved hole of the demagnetizing sleeve; Step S3: Calculate the wavelength of the optical wave temperature measuring column that affects the temperature based on the data recorded by the collector. Through first-order linear fitting, obtain the influence of the temperature coefficient on the wavelength. Through calibration, the average temperature coefficient of the three optical wave temperature measuring columns is obtained as K2; Step S4: Calculate the wavelengths of the three optical wave force measuring columns that are affected by the temperature based on the data recorded by the collector. Through first-order linear fitting, obtain the influence of the temperature coefficient on the wavelength. Through calibration, the average temperature coefficient of the optical wave force measuring column is obtained as K3; Step S5: Define the current wavelength and the initial wavelength of the three optical wave temperature measuring columns as A1’ and A1 respectively, and the current wavelength and the initial wavelength of the average wavelength of the optical wave force measuring column as A2’ and A2 respectively. The calculation formula for the wavelength value A’ after temperature compensation of the average wavelength of the optical wave force measuring column is formula (1): A’ = (A2’ - A2) - (A1’ - A1) / K2 * K3 Formula (1); In the formula, the unit of A’ is: nm; Step S6: Through weight calibration, obtain the A’ values of the optical wave force measuring column when the weights are 0t, 5t, 10t....120t respectively. Then, through second-order fitting, obtain the corresponding relationship between the wavelength value after temperature compensation of the average wavelength of the optical wave force measuring column and the weight M as formula (2): M = aA’ 2 + bA’ + c, Equation (2); In the formula, a, b, and c are constants, and the unit of the weight M is: t; When the corbel is subjected to a weight, the current A’ value can be obtained; substituting the A’ value into formula (1), the current weight value can be calculated.

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