Replacing and installing method for belt wrapper

Abstract

The invention discloses a replacement and installation method for a belt wrapper. The replacement and installation method comprises the steps that an old belt wrapper is dismantled; measuring the perpendicularity of a coiling block of the coiling machine and a rolling center line, and measuring a side gap between a coiling machine body and a base slideway; adjusting the perpendicularity of the winding drum and the side gap between the winding machine body and the base slide way to ensure that the perpendicularity of the winding drum and the side gap of the base slide way meet the technical requirements of drawings; four adjusting jackscrews are additionally arranged on the two sides of a supporting seat of the main shaft, only a lower half bearing bush is installed on a copper bearing bush of the supporting seat, and a new belt wrapper is installed on a coiling machine; a main shaft of the belt wrapper is adjusted, so that the parallelism, the elevation and the levelness of the main shaft and the winding drum meet the technical requirements of drawings; and carrying out equipment debugging. According to the invention, the phenomenon of strip steel deviation during belt coiling assisting and strip steel coiling can be effectively solved, the service lives of the coiling machine body and the transverse moving cylinder are prolonged, the main shaft supporting seat is convenient to mount and adjust, and the phenomena of shaking of the operation side supporting frame and cracking of the foundation are avoided.

Description

Technical Field

[0001] This invention relates to the field of metallurgical equipment installation technology, and more specifically, to a method for replacing and installing a belt winder. Background Technology

[0002] Belt winding aids are important auxiliary equipment for coiling machines, widely used in the metallurgical industries such as steel, aluminum, and copper. They are indispensable equipment in production units such as cold rolling continuous annealing, galvanizing, color coating, finishing, and recoiling. In the production process of thin strip steel, the belt winding aid is needed to tightly wind the first 2-3 turns of strip steel against the surface of the coiler drum, generating initial tension before tension coiling can proceed. It plays a crucial role in cold rolling production units.

[0003] In previous belt winding aid replacements, 1) due to the continuous operation of the coiler for extended periods, excessive play gaps developed between the coiler body and the base, causing the drum to be non-perpendicular to the rolling centerline, resulting in strip misalignment. This strip misalignment causes the EPC (Electronic Guided Vehicle) correction device to remain in a constant state of strip misalignment sensing, leading to frequent operation of the coiler's transverse cylinder. This affects the service life of the coiler body and the transverse cylinder, and can also cause strip misalignment in newly installed belt winding aids.

[0004] 2) Because the design clearance between the main shaft and the copper bearing of the belt winding aid is smaller than the actual movement clearance between the winding machine body and the base, the foundation will crack after the operating side support frame shakes.

[0005] 3) Due to the original design of the belt winder spindle support, it is not convenient to install and adjust the spindle support when replacing the belt winder and the belt. Summary of the Invention

[0006] To address the problems existing in the prior art, the present invention aims to provide a method for replacing and installing a belt winding aid, which can effectively solve the problem of strip deviation during belt winding and strip coiling, extend the service life of the coiler body and the transverse cylinder, facilitate the installation and adjustment of the main shaft support seat, and prevent the shaking of the operating side support frame and cracking of the foundation.

[0007] The present invention adopts the following technical solution:

[0008] A method for replacing and installing a belt winder includes the following steps:

[0009] Step S1: Position the coiler transverse cylinder to the middle position and stop the coil trolley at the transport trolley position;

[0010] Step S2: Set up a working platform under the drum;

[0011] Step S3: Disconnect the belt winder connecting cable and hydraulic hose, and remove the top seal;

[0012] Step S4: Remove the old belt winder;

[0013] Step S5: Position the anchor bolts of the support frame and install the chemical bolts;

[0014] Step S6: Measure the perpendicularity of the coiler drum to the rolling center line, and measure the side clearance between the coiler body and the base slide.

[0015] Step S7: Based on the measurement data in step S6, adjust the perpendicularity and side clearance. The perpendicularity deviation between the coil and the rolling center line shall not exceed 0.05 mm / m, and the side clearance between the coiler body and the base slide shall be 0.08-0.10 mm.

[0016] Step S8: Determine the size of the pit according to the specifications of the pad plate in the support frame installation drawings;

[0017] Step S9: Before applying the grout, thoroughly wet the foundation surface with water to increase adhesion. After applying the grout, proceed with the placement of the support frame.

[0018] Step S10: Add 4 adjusting screws to both sides of the support seat of the main shaft of the belt winder, divide the copper bearing of the support seat into two equal halves, install only the lower half of the bearing, and install the new belt winder into the winder.

[0019] Step S11: Measure and adjust the main shaft of the belt winding aid. The horizontal deviation of the main shaft should not exceed 0.05 mm / m. Using the winding machine drum as a reference, measure the parallelism of the main shaft of the belt winding aid. The parallelism deviation of the main shaft should not exceed 0.10 mm / m. Check the elevation of the main shaft. The elevation deviation should not exceed ±1.0 mm.

[0020] Step S12: Tighten the bolts connecting the main body to the winding machine and the anchor bolts of the support frame. While tightening the bolts, observe the changes in the level and make adjustments accordingly. Install hydraulic and pneumatic hoses, install limit brackets and electrical equipment, and complete the debugging of hydraulic and belt misalignment equipment. Then restore the top seal.

[0021] Furthermore, a working platform is constructed under the drum using steel pipes and planks.

[0022] Furthermore, the top enclosure was removed using a bridge crane, wire rope, and shackles.

[0023] Furthermore, the old belt winding aid was removed using a bridge crane, wire rope, hand chain hoist, and shackles.

[0024] Furthermore, a total station or theodolite is used to position the anchor bolts of the support frame and install the chemical bolts. The perpendicularity of the coiler drum to the rolling center line is measured using a total station or theodolite. A feeler gauge is used to measure the side clearance between the coiler body and the base slide.

[0025] Furthermore, the pit depth is 30-50mm, and the base surface is cleaned by blowing.

[0026] Furthermore, during grouting, adjustments are made using a level and a spirit level, with an elevation of ±1.0mm and a horizontal level of 0.1mm / m.

[0027] Furthermore, the grouting block needs to be cured for 2-3 days until the strength reaches more than 75% before the support frame is installed.

[0028] Furthermore, the new belt winding aid is installed onto the winding machine using a bridge crane, wire rope, hand chain hoist, and shackle.

[0029] Beneficial effects:

[0030] This invention measures and adjusts the clearance between the coiler body and the base during replacement, which can effectively solve the problem of strip deviation during belt-assisted winding and strip winding.

[0031] This invention measures and adjusts the clearance between the coiler body and the base, which can reduce the strip deviation induction of the EPC correction device, thereby extending the service life of the coiler body and the transverse cylinder.

[0032] The present invention adds four adjusting screws on both sides of the support seat of the main shaft of the belt winder, which facilitates the installation and adjustment of the main shaft support seat when the belt winder is replaced and the belt is replaced.

[0033] This invention divides the copper bearing of the support base into two equal halves, and only installs the lower half of the bearing. This does not affect the function and avoids the shaking of the operating side support frame and the cracking of the foundation. Attached Figure Description

[0034] Figure 1 This is an installation flowchart of an embodiment of the present invention. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0036] As shown in the figure, this invention discloses a method for replacing and installing a belt winding aid, comprising the following steps:

[0037] Step 1: After the unit is shut down, the three parties (construction, inspection, and production) confirm and hang the tag, so that the coiler's transverse cylinder is in the middle position and the steel coil trolley stops at the unloading position of the transport trolley.

[0038] Step 2: Construct a working platform under the drum using steel pipes and planks;

[0039] Step 3: Disconnect the belt winder connecting cable and hydraulic hose;

[0040] Step 4: Use a bridge crane, wire rope, and shackles to remove the top enclosure;

[0041] Step 5: Use a bridge crane, wire rope, hand chain hoist, and shackles to remove the old belt winder;

[0042] Step 6: Use a total station or theodolite to locate the anchor bolts of the support frame and install the chemical anchor bolts;

[0043] Step 7: Use a total station or theodolite to measure the perpendicularity of the coiler drum to the rolling center line;

[0044] Step 8: Use a feeler gauge to measure the side clearance between the winding machine body and the base slide;

[0045] Step 9: Adjust according to the measurement data in Steps 7 and 8. The perpendicularity deviation between the coil and the rolling center line should not exceed 0.05 mm / m, and the side clearance between the coiler body and the base slide should be 0.08-0.10 mm.

[0046] Step 10: Determine the size of the pit according to the specifications of the base plate in the support frame installation drawings. The depth should be 30-50mm. Clean the foundation surface.

[0047] Step 11: Before applying the grout, thoroughly wet the foundation surface with water to increase adhesion. When applying the grout, use a level and spirit level to adjust the elevation to ±1.0mm and the horizontal to 0.10mm / m.

[0048] Step 12: After the grouting is completed, watering and curing are required to prevent collisions and vibrations. The curing time is 2-3 days. When the strength reaches more than 75%, the support frame can be put in place.

[0049] Step 13: Add four adjusting screws to both sides of the support seat of the belt winder main shaft. The copper bearing of the support seat is divided into two halves, and only the lower half bearing is installed. Use a bridge crane, wire rope, hand chain hoist, and shackle to install the new belt winder onto the winding machine. This invention creatively changes the installation method of the copper bearing of the support seat. Only the lower half bearing is installed, which does not affect the function and avoids the phenomenon of shaking of the operating side support frame and cracking of the foundation. The design of four adjusting screws makes the support seat easy to install and adjust, because the original design of the belt winder main shaft support seat is not convenient for the installation and adjustment of the main shaft support seat when replacing the belt winder and the belt.

[0050] Step 14: Use a high-precision level to measure and adjust the main shaft of the belt winding aid. The horizontal deviation of the main shaft should not exceed 0.05 mm / m.

[0051] Step 15: Using the winding machine drum as a reference, measure the parallelism of the main shaft of the belt winding aid using a total station or theodolite. The parallelism deviation of the main shaft should not exceed 0.10 mm / m.

[0052] Step 16: Use a level to check the elevation of the spindle. The elevation deviation should not exceed ±1.0mm.

[0053] Step 17: After all data meet the above technical requirements, tighten the bolts connecting the main body and the winding machine and the anchor bolts of the support frame. While tightening the anchor bolts, observe the changes in the level and make adjustments accordingly. The torque of the bolts should meet the requirements of the design drawings or specifications.

[0054] Step 18: Hydraulic and pneumatic hoses are now installed.

[0055] Step 19: Installation of the limit bracket and electrical equipment is complete;

[0056] Step 20: Three parties (construction, inspection, and production) check and confirm the removal of the plaque;

[0057] Step 21: Complete the debugging of hydraulic equipment, belt misalignment and other related equipment;

[0058] Step 22: Use a bridge crane, wire rope, and shackles to restore the top closure.

[0059] The above description is merely a preferred embodiment of the present invention; however, 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 its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A method for replacing and installing a belt winder, characterized in that: Includes the following steps: Step S1: Position the coiler transverse cylinder to the middle position and stop the coil trolley at the unloading position of the transport trolley. Step S2: Set up a working platform under the drum; Step S3: Disconnect the belt winder connecting cable and hydraulic hose, and remove the top seal; Step S4: Remove the old belt winder; Step S5: Position the anchor bolts of the support frame and install the chemical bolts; Step S6: Measure the perpendicularity of the coiler drum to the rolling center line, and measure the side clearance between the coiler body and the base slide. Step S7: Based on the measurement data in step S6, adjust the perpendicularity and side clearance. The perpendicularity deviation between the coil and the rolling center line shall not exceed 0.05 mm / m, and the side clearance between the coiler body and the base slide shall be 0.08-0.10 mm. Step S8: Determine the dimensions of the grouting pit according to the specifications of the pad plate in the support frame installation drawings; Step S9: Before grouting, soak the concrete pit to fully wet the foundation surface and increase adhesion. After the grouting block is completed, water curing should be carried out in time. After the design strength is reached, the support frame should be put in place. Step S10: Add 4 adjusting screws to both sides of the support seat of the main shaft of the belt winder, divide the copper bearing of the support seat into two equal halves, install only the lower half of the bearing, and install the new belt winder into the winder. Step S11: Measure and adjust the main shaft of the belt winding aid. The horizontal deviation of the main shaft should not exceed 0.05 mm / m. Using the winding machine drum as a reference, measure the parallelism of the main shaft of the belt winding aid. The parallelism deviation of the main shaft should not exceed 0.10 mm / m. Check the elevation of the main shaft. The elevation deviation should not exceed ±1.0 mm. Step S12: Tighten the bolts connecting the main body to the winding machine and the anchor bolts of the support frame. While tightening the anchor bolts, observe the changes in the level and make adjustments accordingly. Install hydraulic and pneumatic hoses, install limit brackets and electrical equipment, and complete the debugging of the hydraulic and belt misalignment equipment. Then restore the top seal.

2. The method for replacing and installing a belt winder according to claim 1, characterized in that: A working platform is set up under the drum using steel pipes and planks.

3. The method for replacing and installing a belt winder according to claim 1, characterized in that: The top enclosure was removed using a bridge crane, wire rope, and shackles.

4. The method for replacing and installing a belt winder according to claim 1, characterized in that: The old belt winch was removed using a bridge crane, wire rope, hand chain hoist, and shackles.

5. The method for replacing and installing a belt winding aid according to claim 1, characterized in that: Use a total station or theodolite to position the anchor bolts of the support frame and install the chemical bolts. Use a total station or theodolite to measure the perpendicularity of the coiler drum to the rolling center line. Use a feeler gauge to measure the side clearance between the coiler body and the base slide.

6. The method for replacing and installing a belt winder according to claim 1, characterized in that: The depth of the grouting pit should be 30-50mm, and the surface of the foundation should be cleaned by blowing.

7. The method for replacing and installing a belt winder according to claim 1, characterized in that: During grouting, use a level and spirit level to adjust the level, and control the elevation of the grouting pad to ±1.0mm and the levelness to 0.1mm / m.

8. The method for replacing and installing a belt winder according to claim 1, characterized in that: After the grout is applied, the curing time is 2-3 days. When the strength reaches more than 75%, the support frame is installed.

9. A method for replacing and installing a belt winder according to claim 1, characterized in that: The new belt winding aid was installed onto the winding machine using a bridge crane, wire rope, hand chain hoist, and shackle.

Images