A method for quickly disassembling the reel of a winding line unwinder

Abstract

A method for quickly disassembling the reel of a winding line uncoiler, the method adopts a guide chain and a wire rope to connect and lock the reel head, the winding trolley drags the reel toward the walking beam, and the hydraulic rod of the automatic centering CPC drags the uncoiler toward the transmission side opposite to the walking beam. The relative dragging operation is repeated until the reel together with the quadrangular pyramid and the fan-shaped plate is completely pulled out of the uncoiler. The beneficial effects of the present invention are: it can save the operation time of replacing the reel, and greatly reduce the labor intensity, avoid the situation that the reel wearing parts cannot be replaced when the quadrangular pyramid sleeve and the fan-shaped plate cannot be removed separately, save the spare parts maintenance cost, avoid the long repair cycle of disassembling the uncoiler reel and the reducer together, eliminate the production restrictions of some high-value-added difficult-to-roll steel grades, and improve production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of steel rolling equipment, in particular to a method for quickly disassembling a reel of a winding line uncoiler. Background Art

[0002] The uncoiler on the reeling line is used to unwind steel strip and establish post-tensioning. It is a hydraulically expanded and contracted pyramidal uncoiler. The reel's pyramidal sleeve is mounted on the reel shaft, and the reel shaft and reducer main shaft are integral. Due to abnormal stress, the pyramidal sleeve often cracks and the positioning plate bolts break, resulting in the reel not expanding or contracting properly and the sector plate falling off. This incident damaged the sleeve between the reel shaft and the pyramidal sleeve and became stuck in a stepped position within the pyramidal sleeve, making it impossible to remove and reinstall the reel and reeler. The reducer had to be disassembled, a time-consuming disassembly operation and a lengthy repair cycle. This caused the reeling line to be shut down for extended periods, severely impacting its production output and negatively impacting the production of some high-value-added steel grades. This resulted in unstable production and a significant impact on economic efficiency. Summary of the Invention

[0003] In order to solve the technical problem of difficulty in disassembling the reel together with the tetrahedral sleeve and the sector plate, the present invention adopts an automatic centering CPC hydraulic cylinder in conjunction with the reel replacement stand to drag the uncoiler and the reel in opposite directions, thereby quickly disassembling and replacing the reel together with the tetrahedral sleeve and the sector plate. It is suitable for situations where the reel cannot be disassembled from the uncoiler due to abnormal or accidental conditions, saving disassembly operation time, reducing labor intensity, saving spare parts maintenance costs, improving production efficiency, and increasing economic benefits.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A method for quickly disassembling the reel of the uncoiler of the winding line. This method uses a guide chain and wire rope to connect and lock the reel head. The winding trolley drags the reel toward the walking beam. The hydraulic rod of the automatic centering CPC drags the uncoiler in the direction of the transmission side opposite to the walking beam. The relative dragging operation is repeated until the reel, along with the four-sided pyramid and sector plate, is completely pulled out of the uncoiler. The specific disassembly method is as follows:

[0006] S1. Position the machine for shutdown. Lift the reel changing platform onto the reel loading trolley and secure it securely. The platform will hold the reel. Connect the automatic centering CPC hydraulic lever to the uncoiler and extend it on the operator side.

[0007] S2. Connect the guide chain and wire rope together. Attach the unconnected end of the wire rope to the uncoiler drum head and the unconnected end of the guide chain to the walking beam base. Control the guide chain to tighten the wire rope until the guide chain locks the wire rope tight enough to prevent it from moving.

[0008] S3. Switch the automatic centering CPC to manual operation. Manually extend the hydraulic rod of the automatic centering CPC toward the transmission side by 1 / 10 of a degree at a time. The hydraulic rod drags the uncoiler toward the transmission side, causing the uncoiler to move toward the transmission side. Simultaneously, operate the winding trolley to drag the reel toward the walking beam until the hydraulic rod of the automatic centering CPC is fully extended to the transmission side and the reel is separated from the uncoiler toward the walking beam by a distance.

[0009] S4. Manually extend the hydraulic lever of the automatic centering CPC toward the operating side again, causing the uncoiler to slide toward the walking beam. This shortens the distance between the drum connected to the uncoiler and the walking beam base, causing the wire rope to slacken and bend. This pulls the guide chain and traction wire rope toward the walking beam, tightening the drum head until the guide chain lock wire rope is taut enough to prevent movement.

[0010] S5. Repeat steps S3-S4 until the reel, along with the quadrangular pyramid sleeve and the sector plate, is completely pulled out of the uncoiler.

[0011] Furthermore, a slide plate is provided below the uncoiler, and the uncoiler moves on the slide plate.

[0012] Furthermore, the hydraulic cylinder of the automatic centering CPC is fixed.

[0013] Furthermore, the hydraulic rod stroke of the automatic centering CPC is ±150mm.

[0014] Furthermore, the operating side and the transmission side are located on both sides of the automatic centering CPC hydraulic cylinder.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. It can save the time of replacing the reel and greatly reduce the labor intensity, avoid the situation that the reel wearing parts cannot be replaced when the quadrangular pyramid sleeve and the sector plate cannot be disassembled separately, and save the spare parts maintenance cost.

[0017] 2. It avoids the long repair cycle of disassembling the uncoiler drum and reducer together, eliminates the production restrictions of some high-value-added difficult-to-roll steel grades, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a schematic diagram of a method for quickly disassembling a reel of a winding line uncoiler.

[0019] Figure: 1. Reeling trolley 2. Reel changing platform 3. Guide chain 4. Wire rope 5. Unreeler reel head 6. Reel 7. Walking beam foundation 8. Automatic centering PC 9. Unreeler 10. Slide plate 11. Hydraulic rod 12. Hydraulic cylinder 13. Drive side 14. Walking beam direction 15. Operating side 16. Drive side DETAILED DESCRIPTION

[0020] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings:

[0021] like Figure 1 As shown, a method for quickly disassembling the reel of the uncoiler of the winding line is shown. The method adopts a guide chain 3 and a wire rope 4 to connect and lock the reel head 5. The guide chain and the wire rope play the role of tightening the reel head. Before the dragging action starts, the guide chain 3, the wire rope 4 and the uncoiler reel head 5 are in a taut and straight state. The upper winding trolley 1 drags the reel 6 toward the walking beam direction 14, and the hydraulic rod 11 of the automatic centering cpc8 drags the uncoiler 9 toward the transmission side direction 13 opposite to the walking beam direction 14. The force applied by the upper winding trolley 1 to the reel 6 and the force applied by the automatic centering cpc8 to the uncoiler 9 are two opposite forces. The upper winding trolley 1 pulls the reel 6 toward the walking beam direction 14, and the automatic centering cpc8 pulls the reel 6 toward the transmission side direction 13 3 Pull the uncoiler 9, repeat the operation and drag in opposite directions until the reel 6 together with the quadrangular pyramid and the sector plate are completely pulled out of the uncoiler 9. Since the automatic centering cpc8 hydraulic rod 11 is limited by the stroke, the reel 6 and the uncoiler 9 cannot be pulled out all at once, which requires repeating the dragging operation in two directions. During the operation, since the reel 6 is dragged in the direction of the guide chain 3, the guide chain 3 and the wire rope 4 will be in a relaxed and drooping state after a section of dragging is completed. At this time, it is necessary to pull the guide chain 3 to restore the guide chain 3 and the wire rope 4 to a taut and straight state, and then perform the next section of dragging operation until the reel 6 together with the quadrangular pyramid sleeve and the sector plate are completely pulled out of the uncoiler 9. The specific disassembly method is as follows:

[0022] S1. Position the machine for parking. Lift the reel-changing platform 2 onto the reel-loading trolley 1 and secure it. The reel-changing platform 2 holds the reel 6. The automatic centering CPC 8 is located on either side of the hydraulic cylinder 12, with the operating side 15 and the transmission side 16 located on either side. The operating side 15 is located near the uncoiler 9. The hydraulic rod 11 of the automatic centering CPC 8 passes through the hydraulic cylinder 12 and moves freely on the operating side 15 and the transmission side 16. The hydraulic rod 11 is connected to the uncoiler 9. Before quickly removing the reel, extend the hydraulic rod 11 on the operating side 15 of the automatic centering CPC 8. The total stroke of the hydraulic rod 11 is 300 mm. At this point, the hydraulic rod 11 of the automatic centering CPC 8 has been fully extended on the operating side 15.

[0023] S2. Connect the guide chain 3 and the wire rope 4 together, connect the unconnected end of the wire rope 4 to the reel head 5 of the uncoiler 9, and connect the unconnected end of the guide chain 3 to the walking beam foundation 7. Control the guide chain 3 to tighten the wire rope 4 until the guide chain 3 locks the wire rope 4 and is tightened to the point where it cannot move;

[0024] S3. Switch the automatic centering CPC 8 to manual operation. Manually extend the hydraulic rod 11 of the automatic centering CPC 8 on the transmission side 16 by approximately 30 mm at a time. The hydraulic rod 11 drags the uncoiler 9 toward the transmission side 13, causing the uncoiler 9 to move toward the transmission side 13. Simultaneously, operate the winding trolley 1 to drag the reel 6 toward the walking beam 14 until the hydraulic rod 11 of the automatic centering CPC 8 is fully extended to the transmission side 16, a total extension of 300 mm. The reel 6 is then disengaged from the uncoiler 9 by a distance toward the walking beam 14.

[0025] S4. Manual operation extends the hydraulic rod 11 of the automatic centering cpc 8 toward the operating side 15 again, causing the uncoiler 9 to slide toward the walking beam 14, shortening the distance between the drum 6 and the walking beam foundation 7. At this time, the uncoiler 9 and the drum 6 are not completely disconnected, but are still connected. The direction in which the uncoiler 9 is pushed by the hydraulic rod 11 is consistent with the direction in which the winding trolley 1 drags the drum 6. The winding trolley 1 does not apply a drag force to the drum 6, but moves together with the uncoiler 9 and the drum 6 toward the walking beam 14. The distance between the drum 6 and the walking beam foundation 7 is shortened, and the originally taut and straight wire rope 4 becomes loose and bent and needs to be straightened again. The guide chain 3 is pulled to pull the wire rope 4 toward the walking beam 14, tightening the drum head 5 until the guide chain 3 locks the wire rope 4 and tightens it to the point where it cannot move.

[0026] S5 repeats step S1 to extend the operating side 15 of the hydraulic rod 11 of the automatic centering cpc 8, and re-locks the guide chain in step S2. At the same time, observe the position of the winding trolley 1. According to the position of the winding trolley 1 and the reel 6, adjust the position of the winding trolley 1 appropriately to ensure that the winding trolley is directly below the reel 6. Repeat steps S3-S4 until the reel 6, together with the quadrangular pyramid sleeve and the sector plate, is completely pulled out of the uncoiler 9.

[0027] like Figure 1 As shown, further, a slide plate 10 is provided below the uncoiler 9 , and the uncoiler 9 moves on the slide plate 10 .

[0028] like Figure 1 As shown, further, the hydraulic cylinder 12 of the automatic centering cpc8 is fixed, and the hydraulic rod 11 extends to both sides of the hydraulic cylinder 12. The two sides of the hydraulic rod 11 are the operating side 15 and the transmission side 16. The hydraulic rod 11 of the automatic centering cpc8 needs to connect these two sides when working. Therefore, unlike other hydraulic rods, the hydraulic rod 11 of the automatic centering cpc8 can extend in both directions.

[0029] Furthermore, the stroke of the hydraulic rod 11 of the automatic centering cpc8 is ±150 mm. When the uncoiler 9 is working, the automatic centering cpc8 is a device that controls the automatic centering of the steel coil and the reel 6. Therefore, the maximum total distance of the stroke of the hydraulic rod 11 of the automatic centering cpc8 is 300 mm. This makes it impossible to complete the disassembly operation of the reel 6 in one go, and therefore the two-way dragging operation needs to be repeated.

[0030] like Figure 1 As shown, further, the operating side 15 and the transmission side 16 are located on both sides of the automatic centering cpc8 hydraulic cylinder 12.

[0031] The following examples are implemented on the premise of the technical solution of the present invention, and provide detailed implementation methods and specific operating processes. However, the protection scope of the present invention is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.

[0032] [Example]

[0033] like Figure 1 As shown, taking the 1580mm flat splitting unit as an example, first set the machine to the parking position, hoist the reel changing stand 2 onto the reel loading trolley 1 and lock it in place, drag the reel on the reel changing stand 2, and extend the automatic centering CPC 8 hydraulic rod 11 to the operating side 15;

[0034] like Figure 1 As shown, a 5T guide chain 3 is used to connect a Φ15mm steel wire rope 4 together, one end of the steel wire rope 4 is connected to the drum head 5 of the uncoiler 9, and one end of the guide chain 3 is connected to the walking beam foundation 7, and the guide chain 3 is tightened until the steel wire rope 4 is taut and cannot move;

[0035] Switch the automatic centering CPC8 to manual mode and close the valve station switch of the hydraulic cylinder 12 of the automatic centering CPC8 by 3 / 4. Move all operators 5 meters away from the work site. Manually operate the automatic centering CPC8 to extend the hydraulic rod toward the transmission side 16. The automatic centering CPC8 will drag the uncoiler 9 toward the transmission side 13. At the same time, operate the winding trolley 1 to drag the reel 6 toward the walking beam 14.

[0036] During this period, pay attention to observe whether the relative positions of the drum shaft, the four-sided pyramid sleeve and the fan-shaped plate have changed. Until the hydraulic cylinder of the automatic centering CPC8 is fully extended to the transmission side 16, manually extend the hydraulic rod 11 of the automatic centering CPC8 to the operating side 15, tighten the guide chain, and tighten the wire rope that has been loosened and bent due to dragging and withdrawing the drum until it cannot move;

[0037] Repeat the dragging process in the two directions until the reel, the quadrangular pyramid sleeve and the sector plate are completely pulled out.

Claims

1. A method for quickly disassembling the reel of a winding line unwinder, characterized in that: This method uses a guide chain and a wire rope to connect and lock the drum head. The winding trolley drags the drum toward the walking beam. The hydraulic rod of the automatic centering CPC drags the uncoiler toward the transmission side opposite to the walking beam. Repeat the relative dragging operation until the drum, the quadrangular pyramid, and the fan-shaped plate are completely pulled out of the uncoiler. The specific disassembly method is as follows: S1. Position the machine for shutdown. Lift the reel changing platform onto the reel loading trolley and secure it securely. The platform will hold the reel. Connect the automatic centering CPC hydraulic lever to the uncoiler and extend it on the operator side. S2. Connect the guide chain and wire rope together. Attach the unconnected end of the wire rope to the uncoiler drum head and the unconnected end of the guide chain to the walking beam base. Control the guide chain to tighten the wire rope until the guide chain locks the wire rope tight enough to prevent it from moving. S3. Switch the automatic centering CPC to manual operation. Manually extend the hydraulic rod of the automatic centering CPC toward the transmission side by 1 / 10 of a degree at a time. The hydraulic rod drags the uncoiler toward the transmission side, causing the uncoiler to move toward the transmission side. Simultaneously, operate the winding trolley to drag the reel toward the walking beam until the hydraulic rod of the automatic centering CPC is fully extended to the transmission side and the reel is separated from the uncoiler toward the walking beam by a distance. S4. Manually extend the hydraulic lever of the automatic centering CPC toward the operating side again, causing the uncoiler to slide toward the walking beam. This shortens the distance between the drum connected to the uncoiler and the walking beam base, causing the wire rope to slacken and bend. This pulls the guide chain and traction wire rope toward the walking beam, tightening the drum head until the guide chain lock wire rope is taut enough to prevent movement. S5. Repeat steps S3-S4 until the reel, along with the quadrangular pyramid sleeve and the sector plate, is completely pulled out of the uncoiler.

2. A method for quickly disassembling a reel of a winding line uncoiler according to claim 1, characterized in that: A slide plate is provided below the uncoiler, and the uncoiler moves on the slide plate.

3. The method for quickly disassembling the reel of the uncoiler of the winding line according to claim 1 is characterized in that: The hydraulic cylinder of the automatic centering CPC is fixed.

4. A method for quickly disassembling a reel of a winding line uncoiler according to claim 1, characterized in that: The hydraulic rod stroke of the automatic centering CPC is ±150mm.

5. The method for quickly disassembling the reel of the uncoiler of the winding line according to claim 1 is characterized in that: The operating side and the transmission side are located on both sides of the automatic centering CPC hydraulic cylinder.

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