Method for quickly adjusting vertical position precision of coiler drum

Abstract

The present application relates to a kind of methods for quickly adjusting the vertical position precision of coiler drum, first measure and calculate the deviation value of actual center line relative to design installation center line at the end of drum shaft head, then according to the principle that similar triangle opposite side is proportional, deviation value of actual center line and design installation center line at one end of speed reducer drive side, i.e.the adjustment amount at one end of speed reducer drive side, can be calculated.The method described in the present application can quickly and accurately adjust the vertical center line of coiler to the installation precision requirement range, save time and effort, ensure the position precision of coiler in the vertical direction of rolling line, solve the problem that single side wave type, deviation, edge uneven and other defects of coiled steel coil caused by cumulative deviation of coiler.

Description

Technical Field

[0001] This invention relates to the field of steel rolling equipment installation technology, and in particular to a method for quickly adjusting the vertical position accuracy of a coiler drum. Background Technology

[0002] Due to the characteristics of their cross-sectional shape, cold-rolled or hot-rolled strip steel sometimes needs to be coiled immediately after rolling using a coiler. This provides favorable conditions for increasing the weight of raw materials, improving rolling speed, and reducing the temperature difference between the head and tail of the rolled piece. Furthermore, coiled steel is easier to transport. A coiler is a mechanical device that coils products into coils. In the metallurgical industry, coilers are auxiliary equipment in steel rolling production lines. They are generally located after the finishing mill stand on hot strip mills and cold strip mills, while on single-stand reversible cold strip mills, they are installed on the front and rear sides of the mill. In addition, coilers can also be selectively installed in various finishing units such as continuous pickling units, slitting, annealing, and coating units.

[0003] The core equipment of a winding machine includes a roll (spool), and auxiliary winding equipment (auxiliary forming equipment) includes forming rollers, etc. During the winding process, the product is mainly formed on the roll. The roll is generally driven by a motor, and the forming roller is also generally driven by a motor to rotate. It is moved by a fluid hydraulic cylinder, and all parts work together to complete the winding action smoothly.

[0004] In actual production, the coil operates under coiling tension for extended periods, causing wear and reduced precision in the coiler's guide rails. This leads to the coil's shaft end tilting towards the rolling line entrance, resulting in a significant deviation between the actual centerline of the coil in the direction perpendicular to the rolling line and its designed installation centerline. This causes strip coiling deviation, uneven coiling, and even unilateral waviness, ultimately affecting the quality of the finished coil. When a significant deviation in the coil's vertical position is detected, timely adjustment is necessary to restore the coil's centerline to its designed installation position, ensuring the coil's vertical position accuracy and thus guaranteeing the normal operation of the coiler.

[0005] When the coiler is installed at the factory, since no other equipment is yet installed on the rolling line, the vertical centerline of the coiler drum can be directly adjusted using methods such as centerline plumb line adjustment or oscillation. However, if the drum centerline deviates after the unit is installed and put into production, the centerline cannot be adjusted by plumb line measurement because the equipment obstructs the line. The conventional approach is to use measuring instruments outside the rolling line to take measurements, then adjust based on the results, and repeat this process until the required accuracy is achieved. This method suffers from drawbacks because the measurement data cannot be monitored and tracked in real time. Repeated adjustments and measurements are necessary to achieve the required accuracy, resulting in long adjustment times, poor accuracy, and wasted time and effort, ultimately affecting the efficiency and effectiveness of drum position accuracy adjustment. Summary of the Invention

[0006] This invention provides a method for quickly adjusting the vertical position accuracy of a coiler drum. When the drum deviates from its centerline in the direction perpendicular to the rolling line, detection and adjustment are performed at the end of the coiler's drive side (i.e., the tail end of the coiler reducer base). This allows for quick and accurate adjustment of the drum's vertical centerline to the required installation accuracy range, saving time and effort. It ensures the drum's positional accuracy in the direction perpendicular to the rolling line and solves the problems of defects such as unilateral waviness, deviation, and uneven edges in the coiled steel coil caused by cumulative drum deviation.

[0007] To achieve the above objectives, the present invention employs the following technical solution:

[0008] A method for quickly adjusting the vertical position accuracy of a winding machine drum includes the following steps:

[0009] 1) Define the vertical centerline between the drum and the rolling centerline as AOC, the actual centerline of the coiler as A1OC1, and the design installation centerline of the coiler as A2OC2; all three centerlines pass through the center point O, which is the dividing point between the drum and the reducer on the design installation centerline; the length of the drum is L1, and the length of the reducer base is L2.

[0010] 2) Use a measuring device to measure the offset B1 of the actual centerline A1OC1 of the winding machine at the head end of the drum relative to the vertical centerline AOC; that is, the deviation between the actual centerline A1OC1 of the winding machine and the vertical centerline AOC at two points AA1 at the head end of the drum.

[0011] 3) Calculate the offset B2 between the design installation centerline A2OC2 of the winding machine at the head end of the drum and the vertical centerline AOC. This offset is the deviation between the design installation centerline A2OC2 and the vertical centerline AOC at two points AA2 at the head end of the drum, and is also the design opening value at the head end of the drum. The design opening value is calculated along the length of the drum in the range of 0.05–0.15 mm / m, using the formula B2 = (0.05–0.15 mm / m) × L1. The calculated B2 is a range value. During actual adjustment, the intermediate value B2' = 0.1 mm / m × L1 is used as the target adjustment value.

[0012] 4) Calculate the deviation between the actual centerline A1OC1 and the designed installation centerline A2OC2 of the winding machine at two points A1A2 at the head end of the drum shaft, i.e., A1A2=B1+B2';

[0013] 5) The deviation between the actual centerline A1OC1 of the coiler and the designed installation centerline A2OC2 at points C1C2 on the drive side of the reducer, i.e., the adjustment amount, is B3. Based on the principle that opposite sides of similar triangles are proportional, the formula for calculating B3 is as follows:

[0014] B3=(L2 / L1)×(B1+B2')=(L2 / L1)×(B1+0.1mm / m×L1)

[0015] 6) Adjust the position of the drum centerline based on the adjustment amount B3 calculated in step 5).

[0016] A method for quickly adjusting the vertical position accuracy of a winding machine drum further includes step 7) verification; re-measuring the opening value at the head end of the drum shaft. If the measured opening value is within the range of the designed opening value B2 obtained in step 2), the adjustment ends; if the measured opening value exceeds the range of the designed opening value B2, steps 1) to 6) are repeated until the verification requirements are met.

[0017] In step 2), the measuring device is a total station.

[0018] In step 6), the specific adjustment process is as follows:

[0019] a) Establish the adjustment center point using the positioning slides on the reducer base and the positioning adjustment bolts on the positioning slides. The positioning slides include the inlet side positioning slide and the outlet side positioning slide. The inlet side positioning slide consists of the drive side inlet positioning slide and the operating side inlet positioning slide, and the outlet side positioning slide consists of the drive side outlet positioning slide and the operating side outlet positioning slide. Tighten the positioning adjustment bolts closest to the operating side on the operating side inlet positioning slide and the operating side outlet positioning slide to establish the adjustment fulcrum with O as the center point.

[0020] b) Install the dial indicator on the outer end of the gearbox inlet side on the transmission side. The distance between the measuring head of the dial indicator and the outer end face of the gearbox inlet side is less than 10mm. Set the coarse reading pointer inside the dial indicator to a reading range greater than 1 and less than 2. Then adjust the fine reading pointer inside the dial indicator to zero. Use the dial indicator to measure the real-time movement distance of the outer end of the gearbox transmission side.

[0021] c) Loosen the positioning adjustment bolts on the inlet-side positioning slide rail, turning them out at least 5mm, leaving the positioning adjustment bolt closest to the operating side unchanged; then loosen the positioning adjustment bolts on the outlet-side positioning slide rail, leaving the positioning adjustment bolt closest to the operating side unchanged; then rotate the positioning adjustment bolt closest to the transmission side on the transmission-side outlet positioning slide rail, pushing one end of the reducer's transmission side towards the reducer's inlet side, measuring the movement distance in real time using a dial indicator; stop adjusting when the movement distance reaches the adjustment amount B3;

[0022] d) Rotate the positioning adjustment bolt on the inlet side positioning slide that was loosened in step c) to move the inlet side positioning slide to a position that fits against the corresponding side of the adjusted reducer. During the movement, ensure that the fluctuation of the dial indicator reading does not exceed 0.02mm. Then tighten the positioning adjustment bolt on the inlet side positioning slide that was loosened in step c).

[0023] e) Loosen the positioning adjustment bolt closest to the operating side on the outlet side positioning slide, then adjust and tighten all the positioning adjustment bolts on the outlet side positioning slide to control the gap between the outlet side positioning slide and the corresponding side of the reducer within 0.1mm, and then lock all the positioning adjustment bolts on the outlet side positioning slide.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1) By detecting and adjusting data in real time, the adjustment results can be controlled more accurately, and the precise positioning and adjustment of the drum centerline position can be achieved;

[0026] 2) Conventional adjustment methods require repeated measurements and adjustments, resulting in long adjustment times, numerous adjustments, and low efficiency, which is time-consuming and labor-intensive. However, by using the method described in this invention to adjust the centerline of the drum, the adjustment accuracy and efficiency of the drum position can be effectively improved. The required adjustment accuracy can be achieved in one adjustment, saving time and effort.

[0027] 3) The adjustment method described in this invention is simple and easy to implement, and can meet the needs of continuous annealing and galvanizing units for adjusting the coiler. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of a method for quickly adjusting the vertical position accuracy of a winding machine drum, as described in this invention.

[0029] Figure 2 This is a comparison diagram of the position measurement of the roll before and after adjustment according to an embodiment of the present invention.

[0030] Figure 1 In the middle: 1-Drum; 2-Reducer; 3-Dial indicator; 41a-Reducer drive side inlet positioning slide; 41b-Reducer operation side inlet positioning slide; 42a-Reducer drive side outlet positioning slide; 42b-Reducer operation side outlet positioning slide; 1#~19#-Positioning adjustment bolts;

[0031] AOC - Vertical centerline perpendicular to the rolling centerline (abbreviated as vertical centerline); A1OC1 - Actual centerline of the coiler (coil and reducer) (abbreviated as actual centerline); A2OC2 - Design installation centerline of the coiler (abbreviated as design installation centerline); O - Center point (reference point); L1 - Coil length; L2 - Reducer base length; O1 - Outer end point of the reducer operating side inlet; O2 - Outer end point of the reducer operating side outlet; C3 - Outer end point of the reducer drive side inlet; C4 - Outer end point of the reducer drive side outlet; B1 - Offset of the actual centerline of the coil shaft end relative to the vertical centerline; B2 - Offset of the design installation centerline of the coil shaft end relative to the vertical centerline; B3 - Deviation (adjustment amount) between the actual centerline A1OC1 and the design installation centerline A2OC2 at points C1 and C2 on the reducer drive side. Detailed Implementation

[0032] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings:

[0033] like Figure 1 As shown, the method for quickly adjusting the vertical position accuracy of a winding machine drum according to the present invention includes the following steps:

[0034] 1) Set the vertical centerline of the coil 1 perpendicular to the rolling centerline as AOC, the actual centerline of the coiler as A1OC1, and the design installation centerline of the coiler as A2OC2; all three centerlines pass through the center point O, which is the dividing point between the coil 1 and the reducer 2 on the design installation centerline; the length of the coil 1 is L1, and the length of the reducer base is L2.

[0035] 2) Use a measuring device to measure the offset B1 of the actual centerline A1OC1 of the winding machine at the head end of the drum relative to the vertical centerline AOC; that is, the deviation between the actual centerline A1OC1 of the winding machine and the vertical centerline AOC at two points AA1 at the head end of the drum.

[0036] 3) Calculate the offset B2 between the design installation centerline A2OC2 of the winding machine at the head end of the drum and the vertical centerline AOC. This offset is the deviation between the design installation centerline A2OC2 and the vertical centerline AOC at two points AA2 at the head end of the drum, and is also the design opening value at the head end of the drum. The design opening value is calculated along the length of the drum in the range of 0.05–0.15 mm / m, using the formula B2 = (0.05–0.15 mm / m) × L1. The calculated B2 is a range value. During actual adjustment, the intermediate value B2' = 0.1 mm / m × L1 is used as the target adjustment value.

[0037] 4) Calculate the deviation between the actual centerline A1OC1 and the designed installation centerline A2OC2 of the winding machine at two points A1A2 at the head end of the drum shaft, i.e., A1A2=B1+B2';

[0038] 5) The deviation between the actual centerline A1OC1 of the coiler and the designed installation centerline A2OC2 at points C1C2 on the drive side of the reducer, i.e., the adjustment amount, is B3. Based on the principle that opposite sides of similar triangles are proportional, the formula for calculating B3 is as follows:

[0039] B3=(L2 / L1)×(B1+B2')=(L2 / L1)×(B1+0.1mm / m×L1)

[0040] 7) Adjust the position of the drum centerline based on the adjustment amount B3 calculated in step 5).

[0041] The method for quickly adjusting the vertical position accuracy of a winding machine drum according to the present invention further includes step 7) verification; re-measuring the opening value at the head end of the drum shaft. If the measured opening value is within the range of the designed opening value B2 obtained in step 2), the adjustment ends; if the measured opening value exceeds the range of the designed opening value B2, steps 1) to 6) are repeated until the verification requirements are met.

[0042] In step 2), the measuring device is a total station.

[0043] In step 6), the specific adjustment process is as follows:

[0044] a) Establish the adjustment center point using the positioning slides on the reducer base and the positioning adjustment bolts on the positioning slides. The positioning slides include the inlet side positioning slide and the outlet side positioning slide. The inlet side positioning slide consists of the drive side inlet positioning slide 41a and the operation side inlet positioning slide 42a. The outlet side positioning slide consists of the drive side outlet positioning slide 41n and the operation side outlet positioning slide 42b. Tighten the positioning adjustment bolts closest to the operation side on the operation side inlet positioning slide 41b and the operation side outlet positioning slide 42b to establish the adjustment fulcrum with O as the center point.

[0045] b) Install dial indicator 3 on the outer end of the gearbox inlet side on the transmission side. The distance between the measuring head of dial indicator 3 and the outer end face of the gearbox inlet side is less than 10mm. Set the coarse reading pointer inside dial indicator 3 to a reading range greater than 1 and less than 2. Then adjust the fine reading pointer inside dial indicator 3 to zero. Use dial indicator 3 to measure the real-time movement distance of the outer end of the gearbox on the transmission side.

[0046] c) Loosen the positioning adjustment bolts on the inlet-side positioning slide rail, turning them out at least 5mm, leaving the positioning adjustment bolt closest to the operating side stationary; then loosen the positioning adjustment bolts on the outlet-side positioning slide rail, leaving the positioning adjustment bolt closest to the operating side stationary; then rotate the positioning adjustment bolt closest to the transmission side on the transmission side outlet positioning slide rail 41a, pushing one end of the reducer's transmission side towards the reducer's inlet side, measuring the movement distance in real time using dial indicator 3; stop adjusting when the movement distance reaches the adjustment amount B3;

[0047] d) Rotate the positioning adjustment bolt on the inlet side positioning slide that was loosened in step c) to move the inlet side positioning slide to a position that fits against the corresponding side of the adjusted reducer. During the movement, ensure that the fluctuation of the dial indicator reading does not exceed 0.02mm. Then tighten the positioning adjustment bolt on the inlet side positioning slide that was loosened in step c).

[0048] e) Loosen the positioning adjustment bolt closest to the operating side on the outlet side positioning slide, then adjust and tighten all the positioning adjustment bolts on the outlet side positioning slide to control the gap between the outlet side positioning slide and the corresponding side of the reducer within 0.1mm, and then lock all the positioning adjustment bolts on the outlet side positioning slide.

[0049] The present invention describes a method for rapidly adjusting the vertical position accuracy of a winding machine drum, which utilizes the principle that opposite sides of similar triangles are proportional. Figure 1 As shown, the winding machine's drum and reducer are considered as a single unit, with point O as the dividing point, or center point, or reference point. The vertical centerline AOC, the designed installation centerline A2OC2, and the actual centerline A1OC1 all pass through point O, forming two similar triangles OA1A2 and OC1C2. O1 is the outer endpoint of the reducer's operating side inlet, and O2 is the outer endpoint of the reducer's operating side outlet. A, A1, and A2 are all points on the outer end face of the drum shaft head, while C, C1, and C2 are all points on the outer end face of the reducer's transmission side. C3 is the outer endpoint of the reducer's transmission side inlet, and C4 is the outer endpoint of the reducer's transmission side outlet.

[0050] When adjusting the centerline position of the drum, first measure and calculate the deviation between the actual centerline and the designed installation centerline at points A1 and A2 at the drum shaft end. Then, based on the principle that opposite sides of similar triangles are proportional, the deviation between the actual centerline and the designed installation centerline at the reducer drive side can be calculated, i.e., the distance between points C1 and C2. This deviation is also the adjustment amount that needs to be made at the reducer drive side.

[0051] During adjustment, point O is used as the fulcrum and C2OA2 is used as the target baseline. Adjustment is made at one end of the reducer transmission side. The position change is monitored in real time by a dial indicator. The actual centerline C1OA1 is brought closer to the designed installation centerline C2OA2. When the adjustment distance reaches the adjustment amount, the actual centerline and the designed installation centerline theoretically coincide. The goal is to adjust the actual centerline of the drum to the designed installation centerline position, thus meeting the production line's requirements for the drum installation position accuracy.

[0052] The following embodiments are implemented based on the technical solution of the present invention, and provide detailed implementation methods and specific operation processes. However, the scope of protection of the present invention is not limited to the following embodiments.

[0053]

Example

[0054] like Figure 1 As shown, this embodiment takes the adjustment of the coil centerline of the No. 2 coiler at the 2150 continuous exit of a cold rolling mill as an example. The specific process is as follows:

[0055] 1) According to the drawings, the drum length L1 = 3230mm and the reducer base length L2 = 2350mm;

[0056] 2) Use a total station to measure the offset B1 of the actual centerline A1OC1 of the winding machine at the head end of the drum relative to the vertical centerline AOC. B1 = 3.21 mm.

[0057] 3) Calculate the design opening value of the drum shaft end according to the formula B2 = (0.05~0.15mm / m) × L1, B2 = (0.05~0.15mm / m) × L1 = 0.1615~0.4845mm, take the middle value B2' = 0.1mm / m × L1 = 0.323mm, and use this value as the adjustment target value.

[0058] 4) Calculate the deviation between the actual centerline and the designed installation centerline at the drum shaft end, i.e., B1+B2'=3.533mm.

[0059] 5) Calculate the adjustment amount at one end of the transmission side of the reducer base, i.e., B3=(L2 / L1)×(B1+B2')=(2350 / 3230)×3.533=2.57mm.

[0060] 6) The specific adjustment process is as follows:

[0061] a) Establish the adjustment center point using the positioning slides on the reducer base and the positioning adjustment bolts on the positioning slides. The positioning slides include the transmission side inlet positioning slide, the operation side inlet positioning slide, the transmission side outlet positioning slide, and the operation side outlet positioning slide; lock the No. 1 positioning adjustment bolt closest to the operation side on the operation side inlet positioning slide and the No. 16 positioning adjustment bolt closest to the operation side on the operation side inlet positioning slide to establish the adjustment fulcrum with O as the center point;

[0062] b) Install the dial indicator on the outer end of the gearbox inlet side on the transmission side. The distance between the measuring head of the dial indicator and the outer end face of the gearbox inlet side is 10mm. Set the coarse reading pointer inside the dial indicator to a reading range greater than 1 and less than 2. Then adjust the fine reading pointer inside the dial indicator to zero. Use the dial indicator to measure the real-time movement distance of the outer end of the gearbox transmission side.

[0063] c) Loosen the #2 to #8 positioning adjustment bolts on the reducer inlet side positioning slide (including the reducer drive side inlet positioning slide and the reducer operating side inlet positioning slide), unscrewing them at least 5mm, while keeping the #1 positioning adjustment bolt locked. Then loosen the #9 to #15 positioning adjustment bolts on the reducer outlet positioning slide (including the reducer drive side outlet positioning slide and the reducer operating side outlet positioning slide), while keeping the #16 positioning adjustment bolt locked. Then rotate the #9 positioning adjustment bolt in the tightening direction, causing the reducer outlet side positioning slide to push one end of the reducer drive side towards the reducer inlet side. The movement distance is measured and read in real time using a dial indicator. Stop adjusting when the movement distance reaches the adjustment amount B3 (2.57mm).

[0064] d) Rotate the #2 to #8 positioning adjustment bolts on the positioning slide on the inlet side of the reducer in the direction of bolt tightening, so that the positioning slide on the inlet side of the reducer moves to a position that fits against the corresponding side of the adjusted reducer. During the movement, ensure that the fluctuation of the dial indicator reading does not exceed 0.02mm. Then tighten the lock nuts on the #2 to #8 positioning adjustment bolts.

[0065] e) Loosen the 16# positioning adjustment bolt, then adjust and tighten the 9# to 16# positioning adjustment bolts to control the gap between the positioning slide on the outlet side of the reducer and the corresponding side of the reducer within 0.1mm (measured with a feeler gauge), and then tighten the lock nut on the positioning adjustment bolt of the positioning slide on the outlet side of the reducer.

[0066] 7) Re-measure the opening value at the head end of the drum after adjustment. Using a total station, the actual centerline of the drum was measured. Calculations showed that the opening value at the head end of the drum (towards the exit direction) after adjustment was 0.31 mm, basically consistent with the target value of 0.323 mm. Furthermore, within the design opening value range of 0.1615–0.4845 mm, the adjusted drum position met the technical requirements, and the adjustment was completed.

[0067] The measurement results of the drum position before and after adjustment in this embodiment are as follows: Figure 2 As shown.

[0068] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A method for rapidly adjusting the vertical position accuracy of a winding machine drum, characterized in that, Includes the following steps: 1) Define the vertical centerline perpendicular to the rolling centerline as AOC, the actual centerline of the coiler as A1OC1, and the design installation centerline of the coiler as A2OC2; all three centerlines pass through the center point O, which is the dividing point between the coiler and the reducer on the design installation centerline; the length of the coiler is L1, and the length of the reducer base is L2. 2) Use a measuring device to measure the offset B1 of the actual centerline A1OC1 of the winding machine at the head end of the drum relative to the vertical centerline AOC; that is, the deviation between the actual centerline A1OC1 of the winding machine and the vertical centerline AOC at two points AA1 at the head end of the drum. 3) Calculate the offset B2 between the design installation centerline A2OC2 of the winding machine at the head end of the drum and the vertical centerline AOC. This offset is the deviation between the design installation centerline A2OC2 and the vertical centerline AOC at two points AA2 at the head end of the drum, and is also the design opening value at the head end of the drum. The design opening value is calculated along the length of the drum in the range of 0.05~0.15 mm / m, using the formula B2 = (0.05~0.15 mm / m) × L1. The calculated B2 is a range value. During actual adjustment, the intermediate value B2' = 0.1 mm / m × L1 is used as the target adjustment value. 4) Calculate the deviation between the actual centerline A1OC1 and the designed installation centerline A2OC2 of the winding machine at two points A1A2 at the head end of the drum shaft, i.e., A1A2=B1+B2'; 5) The deviation between the actual centerline A1OC1 and the designed installation centerline A2OC2 of the coiler at points C1C2 on the drive side of the reducer, i.e., the adjustment amount, is B3. Based on the principle that opposite sides of similar triangles are proportional, the formula for calculating B3 is as follows: B3=(L2 / L1)×(B1+B2')=(L2 / L1)×(B1+0.1mm / m×L1) 6) Based on the adjustment amount B3 calculated in step 5), adjust the position of the drum centerline; 7) Verification; re-measure the opening value at the head end of the drum shaft. If the measured opening value is within the range of the design opening value B2 obtained in step 2), the adjustment is complete; if the measured opening value exceeds the range of the design opening value B2, repeat steps 1) to 6) until the verification requirements are met.

2. The method for rapidly adjusting the vertical position accuracy of a winding machine drum according to claim 1, characterized in that, In step 2), the measuring device is a total station.

3. The method for rapidly adjusting the vertical position accuracy of a winding machine drum according to claim 1, characterized in that, In step 6), the specific adjustment process is as follows: a) Establish the adjustment center point using the positioning slides on the reducer base and the positioning adjustment bolts on the positioning slides. The positioning slides include the inlet side positioning slide and the outlet side positioning slide. The inlet side positioning slide consists of the drive side inlet positioning slide and the operating side inlet positioning slide. The outlet side positioning slide consists of the drive side outlet positioning slide and the operating side outlet positioning slide. Tighten the positioning adjustment bolts closest to the operating side on the operating side inlet positioning slide and the operating side outlet positioning slide to establish the adjustment fulcrum with O as the center point. b) Install the dial indicator on the outer end of the gearbox inlet side on the transmission side. The distance between the measuring head of the dial indicator and the outer end face of the gearbox inlet side is less than 10mm. Set the coarse reading pointer inside the dial indicator to a reading range greater than 1 and less than 2. Then adjust the fine reading pointer inside the dial indicator to zero. Use the dial indicator to measure the real-time movement distance of the outer end of the gearbox transmission side. c) Loosen the positioning adjustment bolts on the inlet-side positioning slide rail, unscrewing them by at least 5mm, leaving the positioning adjustment bolt closest to the operating side stationary; then loosen the positioning adjustment bolts on the outlet-side positioning slide rail, leaving the positioning adjustment bolt closest to the operating side stationary; then rotate the positioning adjustment bolt closest to the transmission side on the outlet positioning slide rail on the transmission side, pushing one end of the reducer's transmission side towards the reducer's inlet side, measuring the movement distance in real time using a dial indicator; stop adjusting when the movement distance reaches the adjustment amount B3; d) Rotate the positioning adjustment bolt on the inlet side positioning slide that was loosened in step c) to move the inlet side positioning slide to a position that fits against the corresponding side of the adjusted reducer. During the movement, ensure that the fluctuation of the dial indicator reading does not exceed 0.02mm. Then tighten the positioning adjustment bolt on the inlet side positioning slide that was loosened in step c). e) Loosen the positioning adjustment bolt closest to the operating side on the outlet side positioning slide, then adjust and tighten all the positioning adjustment bolts on the outlet side positioning slide to control the gap between the outlet side positioning slide and the corresponding side of the reducer within 0.1mm, and then tighten all the positioning adjustment bolts on the outlet side positioning slide.

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