A method and system for measuring the elevation of support rollers of annular heating furnace

Abstract

The present invention discloses a method and system for measuring the elevation of a support roller of an annular heating furnace, the method comprising: setting up a laser tracker; establishing a control network, the control network comprising a plurality of control points, the plurality of control points being evenly distributed in the internal walkway of the annular heating furnace; the laser tracker respectively measures the elevation data of the control points at the positions of a plurality of substations and the position of the main station of the annular heating furnace; performing adjustment calculation on the elevation data of the control points at any substation position measured and the elevation data of the corresponding control points at the position of the main station to obtain a final compensation height difference; measuring the elevations of the inner top slide and the outer top slide of the annular heating furnace; adding the elevations of the inner top slide and the outer top slide of the annular heating furnace to the final compensation height difference to obtain the elevation of the top surface of the support roller of the annular heating furnace. The present invention indirectly reflects the elevation of the top surface of the support roller by measuring the elevations of the inner and outer top slides, and ensures high-precision measurement by establishing an overall control network, and the measurement speed is fast.

Description

Technical Field

[0001] The invention relates to the field of precision measurement technology, and in particular to a method and system for measuring the elevation of a supporting roller of an annular heating furnace. Background Art

[0002] At present, the main means of establishing a control network is to build a ring control network back-to-front and back-to-front, and perform overall adjustment calculations. However, the amount of data processing during the adjustment is large, the overall accuracy of the control network is poor, and there is a phenomenon of error accumulation.

[0003] The existing measurement method is to use a laser tracker to measure the reference network of large annular objects, which is mainly used to reduce the measurement error caused by small temperature drift during the long-term measurement of large-sized annular objects at the production and assembly sites. The reference column of the reference network of this method uses a quartz rod as a column; the main body of the reference network consists of a central reference column located inside the annular object and several boundary reference columns installed on the periphery of the annular object. There are 3 to 4 reference points installed on the top and longitudinal sides of the reference column, and the reference points of the boundary reference columns face the reference points of the central reference column. This method can effectively solve the problem of complex environmental factors and long-term measurement of reference drift at the ITERPF6 coil winding production site and other large-scale equipment production and assembly sites, providing a stable and reliable reference for long-term measurement at the production and assembly sites, and improving the measurement accuracy. However, this reference network requires a reference column and is not suitable for the on-site conditions of the annular heating furnace. Summary of the invention

[0004] In view of this, the present invention proposes a method and system for measuring the elevation of the support roller of an annular heating furnace, which are used to measure the elevation of the support roller of the annular heating furnace. The elevation of the top surface of the support roller is indirectly reflected by measuring the elevation of the inner and outer top slide plates. High-precision measurement is guaranteed by establishing an overall control network, and the measurement speed is fast.

[0005] On the one hand, the present invention provides a method for measuring the elevation of a support roller of an annular heating furnace, the method comprising: setting up a laser tracker in the middle area of ​​the annular heating furnace; establishing a control network, the control network comprising a plurality of control points, and the plurality of control points are evenly distributed in the internal aisle of the annular heating furnace; using a laser tracker to respectively measure the elevation data of control points at a plurality of substation positions and a main station position of the annular heating furnace; performing adjustment calculation on the elevation data of the control point at any measured substation position and the elevation data of the corresponding control point at the main station position to obtain a final compensated height difference; measuring the elevations of an inner top slide plate and an outer top slide plate of the annular heating furnace; adding the elevations of the inner top slide plate and the outer top slide plate of the annular heating furnace to the final compensated height difference to obtain the elevation of the top surface of the support roller of the annular heating furnace.

[0006] Furthermore, the laser tracker measures the elevation data of two adjacent control points at each substation and the elevation data of each control point at the main station.

[0007] Furthermore, the elevation data of two control points at a substation location are adjusted with the elevation data of two corresponding control points at the main station location to obtain a final compensated height difference.

[0008] Furthermore, the final compensation height difference is calculated as follows:

[0009] Δh=(Δhb+Δhc) / 2=(bi-b total) / 2+(ci-c total) / 2

[0010] Among them, Δh is the final compensated height difference; Δhb and Δhc are the theoretical compensated height differences of the two control points b and c; b2 and c2 are the elevation data of the two control points b and c measured at the i-th substation; btotal and ctotal are the elevation data of the b and c control points measured at the total station.

[0011] Furthermore, the installation position of the laser tracker is measured, and the installation position of the laser tracker is used as the elevation of the inner top slide plate and the outer top slide plate of the annular heating furnace.

[0012] The second aspect of the present invention provides an elevation measurement system for support rollers of an annular heating furnace, the system comprising: a laser tracker, mounted in the middle area of ​​the annular heating furnace, for measuring elevation data; a processor, for: establishing a control network, the control network comprising a plurality of control points, the plurality of control points being evenly distributed in the internal aisle of the annular heating furnace; receiving elevation data of control points of a plurality of substation positions and a main station position of the annular heating furnace measured by the laser tracker; performing adjustment calculation on the elevation data of the control points of any measured substation position and the elevation data of the corresponding control points of the main station position to obtain a final compensated height difference; measuring the elevations of an inner top slide plate and an outer top slide plate of the annular heating furnace, adding the elevations of the inner top slide plate and the outer top slide plate of the annular heating furnace to the final compensated height difference to obtain the elevation of the top surface of the support roller of the annular heating furnace.

[0013] Furthermore, the processor performs adjustment calculation on the elevation data of two control points at a substation location and the elevation data of two corresponding control points at a main station location to obtain a final compensated height difference value.

[0014] Furthermore, the processor obtains the installation position of the laser tracker, and uses the installation position of the laser tracker as the elevation of the inner top slide plate and the outer top slide plate of the annular heating furnace.

[0015] The above-mentioned method and system for measuring the elevation of the support roller of the annular heating furnace is to set up a laser tracker in the middle area of ​​the annular heating furnace so that the area of ​​the internal aisle of the annular heating furnace can be evenly viewed through the gaps of the obstructions, and a control network is established inside the annular heating furnace to ensure that the control points are evenly distributed inside the aisle of the annular heating furnace, and to ensure that the laser tracker can measure the coordinates of each control point through the gaps at the main station. After the overall control network is established, the laser tracker is set up inside the annular heating furnace for measurement at each station to ensure that two control points can be measured at each station, and the adjustment calculation is performed with the measurement data of the main station to obtain the final compensation height difference; the position of the laser tracker is measured to obtain the elevation of the inner top slide and the outer top slide, and the elevation of the inner top slide and the outer top slide of the annular heating furnace is added to the final compensation height difference to obtain the elevation of the top surface of the support roller of the annular heating furnace. The elevation of the top surface of the support roller is indirectly reflected by measuring the elevation of the inner top slide and the outer top slide of the annular heating furnace, and high-precision measurement is ensured by establishing an overall control network, and the measurement speed is fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] For purposes of illustration and not limitation, the present invention will now be described in terms of preferred embodiments thereof, with particular reference to the accompanying drawings, in which:

[0017] Figure 1 It is a top view of the annular heating furnace;

[0018] Figure 2 It is a flow chart of a method for measuring the elevation of a support roller of an annular heating furnace provided by an embodiment of the present invention;

[0019] Figure 3 It is a structural schematic diagram of a ring-shaped heating furnace support roller elevation measurement system provided by another embodiment of the present invention. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. The embodiments described are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0023] Figure 1 is a top view of the ring heating furnace. Figure 1 The annular heating furnace comprises an inner support roller 5, an outer support roller 3, an inner top slide plate 4, an outer top slide plate 1 and an inner walkway 2 between the inner top slide plate 4 and the outer top slide plate 1. Since the elevation of the top surface of the support rollers needs to be adjusted to be consistent during the trimming process of the annular heating furnace, and since the top surfaces of the inner support roller 5 and the outer support roller 3 are in direct contact with the inner top slide plate 4 and the outer top slide plate 1, it is impossible to directly measure the top surfaces of the inner support roller 5 and the outer support roller 3 with an instrument, the present embodiment indirectly reflects the elevation of the top surface of the support roller by measuring the elevation of the top slide plate.

[0024] In addition, after the annular heating furnace is built, it is impossible to directly measure the elevations of the inner top slide 4 and the outer top slide 1 in the middle of the furnace body through instruments. In order to accurately measure the elevations of the inner top slide 4 and the outer top slide 1, this embodiment uses a laser tracker 6 for measurement.

[0025] Figure 2 This is a flow chart of a method for measuring the elevation of a supporting roller of an annular heating furnace provided by an embodiment of the present invention. Figure 2 The specific method for measuring the elevation of the support roller of the annular heating furnace is as follows:

[0026] S100, setting up a laser tracker 6.

[0027] In this embodiment, the laser tracker 6 is set up in the middle area of ​​the annular heating furnace, and can evenly see the terminal position of the inner aisle 2 of the annular heating furnace through the gaps between the shielding objects.

[0028] S200, establishing a control network, wherein the control network includes a plurality of control points 7, and the plurality of control points 7 are evenly distributed in the inner corridor 2 of the annular heating furnace.

[0029] In this embodiment, a control network is established in the internal aisle 2 of the annular heating furnace to ensure that the control points 7 are evenly distributed in the internal aisle 2 of the annular heating furnace, and to ensure that the laser tracker 6 can measure the coordinates of each control point 7 through the gap at the central station position.

[0030] Exemplarily, the control network of this embodiment is composed of five control points 7 (a, b, c, d, e). If higher measurement accuracy is required, it is only necessary to establish more measurement control points 7.

[0031] S300, the laser tracker 6 measures the elevation data of the control points of the plurality of substation positions and the main station position of the annular heating furnace respectively.

[0032] See also Figure 1 The annular heating furnace includes seven substations and one main station, wherein the seven substations include station one, station two, station three, station four, station five, station six and station seven.

[0033] The laser tracker 6 measures the elevation data of the control points at the seven substations and the main station respectively, ultimately ensuring that the measurement accuracy is controlled within 0.5 mm and that the elevation data of two control points 7 can be measured at each substation.

[0034] Exemplarily, the laser tracker 6 measures the elevation data of two adjacent control points at each substation. The laser tracker 6 measures the elevation data of each control point at the main station.

[0035] S400, performing adjustment calculation on the elevation data of the control point at the measured total station position and the elevation data of the control point at any substation position to obtain a final compensated height difference value.

[0036] In this embodiment, the elevation data of two control points at a substation location are adjusted with the elevation data of two corresponding control points at the main station location to obtain a final compensated height difference value.

[0037] In this embodiment, the final compensation height difference is calculated as follows:

[0038] Δh=(Δhb+Δhc) / 2=(b2-btotal) / 2+(c2-ctotal) / 2

[0039] The elevations of the a, b, c, d, and e control points measured at the total station are: a total, b total, c total, d total, and e total.

[0040] The elevations of the two control points b and c measured at the second station are: b2 and c2 respectively.

[0041] The theoretical compensation height differences of the two control points b and c are: Δhb and Δhc respectively.

[0042] The final compensated height difference is Δh.

[0043] S500, measuring the elevations of the inner top slide plate 4 and the outer top slide plate 1 of the annular heating furnace.

[0044] In this embodiment, the installation position of the laser tracker is measured, and the installation position of the laser tracker is used as the elevation of the inner top slide plate 4 and the outer top slide plate 1 of the annular heating furnace.

[0045] After the control network is established, the laser tracker 6 is set up on the internal walkway 2 of the annular heating furnace to measure each station (station 1 to station 7) to ensure that two control points 7 can be measured at each station. After adjustment calculation with the measurement data of the total station, the elevation of the inner top slide 4 and the outer top slide 1 that can be seen at the installation position of the laser tracker 6 is measured.

[0046] S600, adding the elevation of the inner top slide plate 4 and the outer top slide plate 1 of the annular heating furnace to the final compensation height difference to obtain the elevation of the top surface of the support roller of the annular heating furnace.

[0047] The above-mentioned method for measuring the elevation of the support roller of the annular heating furnace indirectly reflects the elevation of the top surface of the support roller by measuring the elevation of the inner top plate and the outer top plate of the annular heating furnace, and ensures high-precision measurement by establishing an overall control network, and the measurement speed is fast.

[0048] Figure 3 Schematic diagram of the structure of the ring heating furnace support roller elevation measurement system provided by one embodiment of the present invention. Figure 3 The ring heating furnace support roller elevation measurement system includes:

[0049] The laser tracker 6 is installed in the middle area of ​​the annular heating furnace;

[0050] Processor 8, used for establishing a control network, wherein the control network includes a plurality of control points, and the plurality of control points are evenly distributed in the inner aisle of the annular heating furnace;

[0051] The laser tracker 6 is further used to measure the elevation data of the control points of the multiple substation positions and the main station position of the annular heating furnace;

[0052] The processor 8 is further used to obtain the elevation data of the control points of multiple substation positions and the main station position of the annular heating furnace measured by the laser tracker 6, and perform adjustment calculation on the elevation data of the control points of the measured main station position with the elevation data of the control points of any substation position to obtain the final compensated height difference; measure the elevations of the inner top slide 4 and the outer top slide 1 of the annular heating furnace; add the elevations of the inner top slide 4 and the outer top slide 1 of the annular heating furnace to the final compensated height difference to obtain the elevation of the top surface of the support roller of the annular heating furnace.

[0053] In this embodiment, a control network is established in the internal aisle 2 of the annular heating furnace through the processor 8 to ensure that the control points 7 are evenly distributed in the internal aisle 2 of the annular heating furnace, and to ensure that the laser tracker 6 can measure the coordinates of each control point 7 through the gap at the central station position.

[0054] In this embodiment, the elevation data of each control point at the main station is measured by the laser tracker 6, and the elevation data of two control points at each substation is measured by the laser tracker 6.

[0055] In this embodiment, by measuring the installation position of the laser tracker, the installation position of the laser tracker is used as the elevation of the inner top slide 4 and the outer top slide 1 of the annular heating furnace. The processor 8 adds the elevation of the inner top slide 4 and the outer top slide 1 of the annular heating furnace to the final compensation height difference to obtain the elevation of the top surface of the support roller of the annular heating furnace.

[0056] The above-mentioned annular heating furnace support roller elevation measurement system indirectly reflects the support roller top surface elevation by measuring the elevations of the inner top plate and the outer top plate of the annular heating furnace, and ensures high-precision measurement and fast measurement speed by establishing an overall control network.

[0057] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may occur depending on design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for measuring the elevation of a support roller of an annular heating furnace, characterized in that: include: A laser tracker is installed in the middle area of ​​the annular heating furnace; The laser tracker measures the elevation data of two adjacent control points at each substation and the elevation data of each control point at the main station. Establishing a control network, wherein the control network includes a plurality of control points, and the plurality of control points are evenly distributed in the inner aisle of the annular heating furnace; The laser tracker measures the elevation data of the control points of multiple substations and the main station of the annular heating furnace respectively; The elevation data of the control point at any substation location measured is adjusted with the elevation data of the corresponding control point at the main station location to obtain the final compensated height difference; Specifically, the elevation data of two control points at a substation location are adjusted with the elevation data of two corresponding control points at the main station location to obtain a final compensation height difference value; The calculation method of the final compensation height difference is: Δh=(Δhb+Δhc) / 2=(bi-b total) / 2+(ci-c total) / 2 Among them, Δh is the final compensated height difference, Δhb and Δhc are the theoretical compensated height differences of the two control points b and c; bi and ci are the elevation data of the two control points b and c measured at the i-th substation; btotal and ctotal are the elevation data of the b and c control points measured at the total station; Measure the elevations of the inner and outer top slides of the annular heating furnace; The elevation of the inner top slide and the outer top slide of the annular heating furnace is added to the final compensation height difference to obtain the elevation of the top surface of the support roller of the annular heating furnace.

2. The method for measuring the elevation of the support roller of the annular heating furnace according to claim 1 is characterized in that: The installation position of the laser tracker is measured, and the installation position of the laser tracker is used as the elevation of the inner top slide plate and the outer top slide plate of the annular heating furnace.

3. A ring heating furnace support roller elevation measurement system, characterized in that: include: The laser tracker is installed in the middle area of ​​the annular heating furnace to measure elevation data; Processor for: Establishing a control network, wherein the control network includes a plurality of control points, and the plurality of control points are evenly distributed in the inner aisle of the annular heating furnace; Receiving elevation data of control points of multiple substation positions and the main station position of the annular heating furnace measured by a laser tracker; The elevation data of the control point at any substation location measured is adjusted with the elevation data of the corresponding control point at the main station location to obtain the final compensated height difference; Specifically, the processor performs adjustment calculation on the elevation data of two control points at a substation location and the elevation data of two corresponding control points at a main station location to obtain a final compensated height difference value; The calculation method of the final compensation height difference is: Δh=(Δhb+Δhc) / 2=(bi-b total) / 2+(ci-c total) / 2 Among them, Δh is the final compensated height difference, Δhb and Δhc are the theoretical compensated height differences of the two control points b and c; bi and ci are the elevation data of the two control points b and c measured at the i-th substation; btotal and ctotal are the elevation data of the b and c control points measured at the total station; The elevations of the inner and outer top slides of the annular heating furnace are measured, and the elevations of the inner and outer top slides of the annular heating furnace are added to the final compensation height difference to obtain the elevation of the top surface of the support roller of the annular heating furnace.

4. The ring-shaped heating furnace support roller elevation measurement system according to claim 3 is characterized in that: The processor obtains the installation position of the laser tracker, and uses the installation position of the laser tracker as the elevation of the inner top slide plate and the outer top slide plate of the annular heating furnace.

Images