Off-line positioning and adjusting method for trunnion seat on vibration frame of continuous casting machine
By the use of long -axis and short shafts offline positioning adjustments in the hypertrophic positioning operation on the vibration frame of the Lianlian Machine, combined with the accurate measurement of the entire station or three -coordinate laser measuring instrument, the traditional positioning operations are low and the accuracy in the traditional positioning operations is low and the deviation in the deviation in the traditional positioning operations. The big problem improves the assembly accuracy of the segment 0#segment.
Patent Information
- Application Number
- CN202411504259.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-01-24
AI Technical Summary
The positioning operation of the trunnion seat on the vibration frame of the traditional continuous casting machine has problems such as low positioning accuracy, equipment reference offset, insufficient measurement accuracy and artificial deviation, which affects the assembly accuracy of the continuous casting machine section 0#.
Use the long and short shaft to realize the offline positioning adjustment of the axle seat on the vibration frame of the continuous casting machine. By adjusting the position of the base surface and the lower ear shaft seat of the vibration framework of Zhongtai, the full station or three -coordinate laser measuring instrument is used for Precise measurement to ensure the positioning accuracy of the upper axis.
It simplifies the upper trunnion centering process, improves the positioning accuracy of the upper trunnion seat, ensures the assembly accuracy of the 0# section of the continuous casting machine, and reduces human deviations and accumulated errors of the equipment itself.
Smart Images
Figure CN119346817A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of engineering measurement, and in particular to an off-line positioning and adjustment method for an upper trunnion seat of a continuous casting machine vibration frame. Background Art
[0002] Usually, the 0# section of the continuous casting machine is positioned and installed through the upper trunnion seat of the vibration frame, and the position accuracy of the upper trunnion seat directly affects the assembly accuracy of the 0# section of the continuous casting machine. During the offline maintenance process, the upper trunnion alignment operation mostly adopts the following process: 1. Hoist the vibration frame onto the centering table and install the vibration frame according to the centering table positioning pins and positioning base surface; 2. Lift the 0# section of the continuous casting machine into the vibration frame, and install the 0# section of the continuous casting machine according to the lower trunnion seat of the centering table and the upper trunnion seat of the vibration frame; 3. Drop the sample into the bottom support of the centering platform, and connect the top of the sample to the fixing rod; 4. The maintenance personnel enter the 0# section of the continuous casting machine, use a feeler gauge to measure the size between the 0# roller and the sample plate, and calculate the adjustment data of the trunnion seat on the vibration frame; 5. Lift the 0# section of the continuous casting machine off the vibration frame and adjust the position of the ear shaft seat on the vibration frame.
[0003] Then repeat the above steps 2-5 until the upper trunnion seat position meets the installation requirements of the 0# section of the continuous casting machine. This positioning process involves multiple devices and multiple sets of measuring instruments, and has many defects: 1. The cumulative error of the equipment itself caused by the size and shape errors of the components of the centering platform (the positioning base of the vibration frame, the bottom fixing seat of the centering platform, the template, the fixing rod, the positioning pin, etc.) seriously affects the positioning accuracy of the upper trunnion seat; 2. Since the trunnion seat of the 0# section of the continuous casting machine was twisted and deformed, there was a problem with the equipment benchmark. Adjustments were made based on this benchmark, and the data became invalid. 3. Maintenance personnel need to enter the equipment to use a feeler gauge for measurement. Currently, the accuracy of the offline maintenance feeler gauge can only reach 0.1mm, which cannot meet the process requirements; 4. There are differences in the technical levels of maintenance personnel, and the measurement data may be subject to human bias. Summary of the invention
[0004] The technical problem to be solved by the present invention is to provide an off-line positioning and adjustment method for the upper ear shaft seat of the vibration frame of a continuous casting machine. The method overcomes the defects of the traditional positioning operation of the upper ear shaft seat of the vibration frame of the continuous casting machine, and adopts a long axis and a short axis to realize the off-line positioning and adjustment of the upper ear shaft seat of the vibration frame of the continuous casting machine, thereby simplifying the upper ear shaft centering operation process, improving the positioning accuracy of the upper ear shaft seat, and ensuring the assembly accuracy of the 0# section of the continuous casting machine.
[0005] In order to solve the above technical problems, the offline positioning and adjustment method of the trunnion seat on the vibration frame of the continuous casting machine of the present invention comprises the following steps: Step 1: Adjust the vibration frame positioning base surface of the centering platform. Using the positioning pins of the centering platform positioning base surface as a reference, adjust the height of the gasket of the positioning base surface so that the flatness of the positioning base surface meets the installation requirements of the vibration frame. Step 2: Adjust the position of the lower trunnion seat of the centering table, place the two short shafts in the lower trunnion seats on both sides of the centering table respectively, use the measuring tool to detect and adjust the gaskets of the lower trunnion seat, so that the center lines of the short shafts on both sides of the centering table coincide, and use the positioning pins on the positioning base surface of the centering table as a reference to make the lower trunnion seat of the centering table meet the size and shape requirements to avoid errors caused by the offset of the lower trunnion seat of the centering table; Step 3: Use the long shaft to replace the two short shafts of the lower trunnion seat, and re-confirm the coaxiality of the lower trunnion seat to maintain the coaxiality of the lower trunnion during subsequent reference adjustment; Step 4: Hoist the vibration frame to the positioning base surface of the centering platform and install it through the positioning pins and the positioning base surface; Step 5: Place the two short shafts in the upper trunnion seats on both sides of the vibration frame, use measuring tools to detect and adjust the gaskets of the upper trunnion seats, so that the center lines of the short shafts on both sides of the vibration frame coincide, and use the center line of the long shaft in the lower trunnion seat as a reference to make the upper trunnion seat meet the size and shape requirements, avoid the cumulative error of the equipment itself, and improve the positioning accuracy; Step 6. Use the long shaft to replace the two short shafts of the upper trunnion seat, and reconfirm the coaxiality of the upper trunnion seat to maintain the coaxiality of the upper trunnion during subsequent benchmark adjustments.
[0006] Furthermore, the measuring tool is a total station or a three-coordinate laser measuring instrument that meets the measurement accuracy requirements.
[0007] Furthermore, in the step 1, the positioning base surface of the center platform is first cleaned and polished, and then the height of the gasket of the positioning base surface is adjusted to ensure the flatness of the positioning base surface.
[0008] Furthermore, when the short shaft is placed in the lower ear shaft seat and the upper ear shaft seat, determine whether the short shaft fits with the inner ring surface of the lower ear shaft seat and the upper ear shaft seat, and grind the inner ring surface of the lower ear shaft seat and the upper ear shaft seat, and adjust the horizontal direction gaskets of the lower ear shaft seat and the upper ear shaft seat until the short shaft fits with the inner ring surface of the lower ear shaft seat and the upper ear shaft seat. Since the off-line positioning and adjustment method of the upper ear shaft seat of the vibration frame of the continuous casting machine of the present invention adopts the above-mentioned technical scheme, that is, the method first adjusts the positioning base surface of the vibration frame of the centering platform so that the flatness of the positioning base surface meets the installation requirements of the vibration frame; adjusts the position of the lower ear shaft seat of the centering platform, by placing two short shafts and the long shaft respectively in the lower ear shaft seats on both sides of the centering platform, so that the center lines of the short shafts on both sides of the centering platform coincide, ensures that the lower ear shaft seat of the centering platform meets the size and shape requirements, and the coaxiality of the lower ear shaft seat is confirmed twice by the long shaft; hoist the vibration frame to the positioning base surface of the centering platform, by placing two short shafts and the long shaft respectively in the upper ear shaft seats on both sides of the vibration frame, so that the center lines of the short shafts in the upper ear shaft seats coincide, ensures that the upper ear shaft seat meets the size and shape requirements, and the coaxiality of the upper ear shaft seat is confirmed twice by the long shaft. The method overcomes the defects of the traditional continuous casting machine vibration frame upper trunnion seat positioning operation, adopts a long axis and a short axis to realize the offline positioning adjustment of the upper trunnion seat of the continuous casting machine vibration frame, simplifies the upper trunnion centering operation process, improves the positioning accuracy of the upper trunnion seat, and ensures the assembly accuracy of the 0# section of the continuous casting machine. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a flowchart of the off-line positioning and adjustment method of the trunnion seat on the vibration frame of the continuous casting machine of the present invention; Figure 2 Schematic diagram of the positioning base surface of the centering platform in this method. DETAILED DESCRIPTION
[0010] Implementation example Figure 1 and Figure 2 As shown, the offline positioning and adjustment method of the trunnion seat on the vibration frame of the continuous casting machine of the present invention comprises the following steps: Step 1: Adjust the vibration frame positioning base surface 1 of the centering platform, and adjust the height of the gasket of the positioning base surface 1 based on the positioning pin 2 of the centering platform positioning base surface 1, so that the flatness of the positioning base surface 1 meets the installation requirements of the vibration frame; Step 2: Adjust the position of the lower trunnion seat of the centering table, place the two short shafts in the lower trunnion seats on both sides of the centering table respectively, use the measuring tool to detect and adjust the gaskets of the lower trunnion seat, so that the center lines of the short shafts on both sides of the centering table coincide, and use the positioning pins on the positioning base surface of the centering table as a reference to make the lower trunnion seat of the centering table meet the size and shape requirements to avoid errors caused by the offset of the lower trunnion seat of the centering table; The size and shape requirements of the lower trunnion seat are determined by using a total station or other similar measuring equipment to measure the horizontal and vertical distances from the positioning base surface to the axis of the lower trunnion seat based on the positioning base surface, and the position is adjusted according to the drawing by adjusting the gasket of the lower trunnion seat; Step 3: Use the long shaft to replace the two short shafts of the lower trunnion seat, and re-confirm the coaxiality of the lower trunnion seat to maintain the coaxiality of the lower trunnion during subsequent reference adjustment; Step 4: Hoist the vibration frame to the positioning base surface of the centering platform and install it through the positioning pins and the positioning base surface; Step 5: Place the two short shafts in the upper trunnion seats on both sides of the vibration frame, use measuring tools to detect and adjust the gaskets of the upper trunnion seats, so that the center lines of the short shafts on both sides of the vibration frame coincide, and use the center line of the long shaft in the lower trunnion seat as a reference to make the upper trunnion seat meet the size and shape requirements, avoid the cumulative error of the equipment itself, and improve the positioning accuracy; The size and shape requirements of the upper trunnion seat are determined by using a total station or other similar measuring equipment to measure the horizontal and vertical distances from the long axis in the lower trunnion seat to the axis center of the lower trunnion seat, and the position is adjusted according to the drawing by adjusting the gasket of the upper trunnion seat; Step 6. Use the long shaft to replace the two short shafts of the upper trunnion seat, and reconfirm the coaxiality of the upper trunnion seat to maintain the coaxiality of the upper trunnion during subsequent benchmark adjustments.
[0011] Preferably, the measuring tool is a total station or a three-coordinate laser measuring instrument that meets the measurement accuracy requirements.
[0012] Preferably, in the step 1, the positioning base surface of the center platform is first cleaned and polished, and then the height of the gasket of the positioning base surface is adjusted to ensure the flatness of the positioning base surface.
[0013] Preferably, when the short shaft is placed in the lower ear shaft seat and the upper ear shaft seat, it is determined whether the short shaft fits with the inner ring surface of the lower ear shaft seat and the upper ear shaft seat, by grinding the inner ring surface of the lower ear shaft seat and the upper ear shaft seat, and adjusting the horizontal direction gaskets of the lower ear shaft seat and the upper ear shaft seat until the short shaft fits with the inner ring surface of the lower ear shaft seat and the upper ear shaft seat.
[0014] This method uses a total station or three-coordinate laser measuring instrument that meets the measurement accuracy requirements to reduce the accumulated errors of the maintenance equipment and measuring equipment, and ensure the positioning accuracy of the upper trunnion seat; the long and short positioning shafts are used to replace the 0# segment for centering adjustment, which solves the benchmark offset problem caused by the distortion and deformation of the 0# segment's own trunnion seat. The feeler gauge is eliminated for the measurement process, eliminating human measurement deviations and ensuring assembly accuracy. Avoid frequent lifting of equipment, reduce safety risks, shorten offline maintenance time, and meet the needs of offline replacement of online equipment.
[0015] The method realizes the offline positioning and adjustment of the trunnion seat on the vibration frame of the continuous casting machine based on the long axis and the short axis, solves the problems of complex centering process and large dimensional error of the traditional trunnion seat, improves the maintenance efficiency, and ensures the assembly accuracy of the 0# section of the continuous casting machine.
Claims
1. An off-line positioning and adjustment method for the trunnion seat on the vibration frame of a continuous casting machine, characterized in that The steps include: Step 1: Adjust the vibration frame positioning base surface of the centering platform. Using the positioning pins of the centering platform positioning base surface as a reference, adjust the height of the gasket of the positioning base surface so that the flatness of the positioning base surface meets the installation requirements of the vibration frame. Step 2: Adjust the position of the lower trunnion seat of the centering table, place the two short shafts in the lower trunnion seats on both sides of the centering table respectively, use the measuring tool to detect and adjust the gaskets of the lower trunnion seat, so that the center lines of the short shafts on both sides of the centering table coincide, and use the positioning pins on the positioning base surface of the centering table as a reference to make the lower trunnion seat of the centering table meet the size and shape requirements to avoid errors caused by the offset of the lower trunnion seat of the centering table; Step 3: Use the long shaft to replace the two short shafts of the lower trunnion seat, and re-confirm the coaxiality of the lower trunnion seat to maintain the coaxiality of the lower trunnion during subsequent reference adjustment; Step 4: Hoist the vibration frame to the positioning base surface of the centering platform and install it through the positioning pins and the positioning base surface; Step 5: Place the two short shafts in the upper trunnion seats on both sides of the vibration frame, use measuring tools to detect and adjust the gaskets of the upper trunnion seats, so that the center lines of the short shafts on both sides of the vibration frame coincide, and use the center line of the long shaft in the lower trunnion seat as a reference to make the upper trunnion seat meet the size and shape requirements, avoid the cumulative error of the equipment itself, and improve the positioning accuracy; Step 6. Use the long shaft to replace the two short shafts of the upper trunnion seat, and reconfirm the coaxiality of the upper trunnion seat to maintain the coaxiality of the upper trunnion during subsequent benchmark adjustments.
2. The off-line positioning and adjustment method of the trunnion seat on the vibration frame of the continuous casting machine according to claim 1 is characterized in that: The measuring tool is a total station or a three-coordinate laser measuring instrument that meets the measurement accuracy requirements.
3. The off-line positioning and adjustment method of the trunnion seat on the vibration frame of the continuous casting machine according to claim 1 or 2, characterized in that: In the step 1, the positioning base surface of the center stage is first cleaned and polished, and then the height of the gasket of the positioning base surface is adjusted to ensure the flatness of the positioning base surface.
4. The off-line positioning and adjustment method of the trunnion seat on the vibration frame of the continuous casting machine according to claim 3 is characterized in that: When the short shaft is placed in the lower trunnion seat and the upper trunnion seat, determine whether the short shaft fits with the inner ring surface of the lower trunnion seat and the upper trunnion seat, and grind the inner ring surface of the lower trunnion seat and the upper trunnion seat and adjust the horizontal direction gaskets of the lower trunnion seat and the upper trunnion seat until the short shaft fits with the inner ring surface of the lower trunnion seat and the upper trunnion seat.