DEVICE WITH A HASEL DEVICE

Description

[0001] The invention relates to a device with a reeling mechanism for winding a strip, in particular a metal strip, into a coil and with a bridge extending over the reeling mechanism. Furthermore, the invention relates to a hot strip mill with said device and a method for maintaining the reeling mechanism.

[0002] Devices of the aforementioned type are generally known in the prior art, e.g., from Japanese patent application JP S 55008356 A. The device disclosed therein exhibits all the features of the preamble of claim 1. Specifically, this document discloses a device with a reeling unit comprising a reel mandrel for winding a strip, in particular a metal strip, into a coil. Three deflection plates are arranged at a distribution around the circumference of the reel mandrel to guide the strip during winding. The deflection plates are individually adjusted by adjusting devices in the form of hydraulic cylinders. Furthermore, the device includes a bridge in the form of a roller conveyor extending over the reeling unit. US 3,100,605 A also discloses a device with the features of the preamble of claim 1.

[0003] Maintenance of such stationary reel systems is typically complex, as considerable dismantling and assembly work may be necessary.

[0004] The invention is based on the objective of further developing a known device with a reeling mechanism, a known hot strip mill with the device, and known methods for maintaining the reeling mechanism within the device in such a way that maintenance can be simplified, carried out faster, and carried out more safely for the maintenance personnel.

[0005] This problem is solved with respect to the device by the subject matter of claim 1. Accordingly, the device according to the invention is characterized in that at least one support device is attached to the bridge and / or to the bridge abutments for attaching parts of the winch assembly. This significantly simplifies and speeds up the maintenance of the winch assembly.

[0006] Within the scope of this description, a distinction is made between parts worn out during operation of the reeling device, which must be transported out of the reeling device, and non-worn or new spare parts, which must be transported into the reeling device to replace the worn parts.

[0007] At least one of the bridgeheads may be part of a driver system.

[0008] According to a first embodiment of the invention, the support device can be in the form of a hook for attaching the parts of the reeling device, or in the form of a preferably telescopic support rail or a crane, preferably each with a trolley for attaching and transporting the parts. Furthermore, the support device is associated with a lifting device, for example in the form of a rope or pulley system, for attaching, raising, or lowering the parts of the reeling device.

[0009] At least one first support device may be provided, with the help of which parts, such as the adjusting devices for adjusting the deflection shells, can be transported out of the reeling device when they are worn out, or can be transported into the reeling device as new replacement parts.

[0010] In addition to the adjusting devices, the reeling mechanism contains other wear parts, typically in the form of pressure rollers and / or deflection plates, which are detachably attached to the inside of the deflection shells. According to the invention, if these parts become worn, they are transported from their respective deflection shells to a platform on a bale carriage by means of a second support device. If these parts need to be transported into the reeling mechanism as unworn or new replacement parts, they are transported from the bale carriage platform to their respective deflection shells within the reeling mechanism by means of the aforementioned second support device. Unlike the first support device, the second support device serves to transport parts within the reeling mechanism.

[0011] The first and second support devices can also be of identical construction. Alternatively, instead of the first and second support devices, only a single support device can be provided, which is then preferably designed to operate both inside and outside the reel mechanism.

[0012] According to a further embodiment of the invention, the pivot point for at least one first deflection shell and the pivot point furthest from the deflection shell of the actuating device that actsuates the first deflection shell are attached to the bridge or to one of the bridge abutments. In contrast, the pivot point for at least one second deflection shell and the pivot point furthest from the deflection shell of a second actuating device that actsuates the second deflection shell are attached to the winch assembly. The claimed partial attachment of the pivot and pivot points to the bridge or to the bridge abutments creates clearance, particularly in the lateral areas of the winch assembly, which facilitates maintenance. Specifically, the clearance thus gained allows for quick handling of the necessary worn parts or spare parts during maintenance, preferably without using the overhead crane.Maintenance can therefore often be carried out more quickly and downtime can be kept short.

[0013] According to a further embodiment of the invention, the bridge is supported on bridge abutments at its approach and departure ends, which in turn are connected to a foundation via bridge piers. The winch assembly according to the invention is typically arranged stationary between the bridge piers. Therefore, the clearances in the lateral areas of the winch assembly are traditionally limited. Due to the claimed partial suspension of the deflection shells and their adjustment devices on the bridge and / or on the bridge abutments, the clearances can advantageously be increased because the space traditionally required for this purpose in the lateral areas is no longer needed.

[0014] The aforementioned problem of the invention is further solved by a hot rolling mill and by a plurality of methods for maintaining the coiling device. The advantages of these solutions correspond to the advantages mentioned above with reference to the aforementioned devices.

[0015] The invention is accompanied by 5 figures, wherein Fig. 1 the device according to the invention with first support devices; Fig. 2 the device according to the invention with second support devices; Fig. 3 the device according to the invention with a bundle transport trolley in a perspective view; Fig. 4 the device according to Fig. 3 in a cross-sectional view; and Fig. 5 shows a hot rolling mill with the device according to the invention.

[0016] The invention is described in detail below with reference to the figures mentioned above, in the form of exemplary embodiments. All figures depict identical technical elements with the same reference numerals. If reference numerals such as 114 and 116 are used without subsequent numbering, it is not necessary to distinguish between corresponding, similar device features.

[0017] Fig. 1Figure 1 shows the device 100 according to the invention. It consists of a reeling device 110 with a reel mandrel 112 for winding a strip 40, in particular a metal strip, into a coil, and a bridge 120 extending over the reeling device 110. The bridge 120 is supported on a foundation 200 via bridge abutments 121 and bridge piers 125. The reeling device 110 is stationary, installed between the bridge piers 125. The reeling device 110 has a shaft roller table 118 at the inlet side and, next to the reel mandrel 112, at least two deflection plates 114 distributed around its circumference for guiding the strip as it is wound around the reel mandrel 112. Furthermore, the reel unit 110 has adjusting devices 116 for individually adjusting the deflection shells 114 at the periphery of the reel mandrel 112. The deflection shells 114 are each rotatably mounted about a pivot point D.The actuating devices 116 each have a pivot point A1', A2', A3' on the deflection shell side, by which they are articulated to the deflection shells 114. In addition, they each have a pivot point A1, A2, A3 on the far side of the deflection shell. The pivot point D1 for the first deflection shell 114-1 and the pivot point A1 on the far side of the deflection shell of the first actuating device 116-1, by means of which the first deflection shell 114-1 is actuated, are attached to the bridge 120 or to one of the bridge abutments 121. In contrast, the pivot points D2, D3 for the second and third deflection shells 114-2, 114-3 and the pivot points A2, A3 of the actuating devices 116-2, 116-3, which actuate the second deflection shell 114-2 and the third deflection shell 114-3, are attached to the reel unit 110 or the foundation 200. The actuating devices 116 are each designed either as a hydraulic cylinder or as an electric or pneumatic actuator.The bridge 120 can, for example, be designed as a roller conveyor with roller conveyor rollers 122. At least some of the roller conveyor rollers can be driven by an electric motor. Figure 1 , not shown, be directly driven. In this context, the word "direct" means that at most a coupling, but not, for example, a transmission shaft, is fitted between the electric motor and the driven roller conveyor roller 122.

[0018] According to the invention, at least one support device 126, 128 is attached to the bridge 120 or the bridgeheads 121, preferably on their underside, for transporting parts of the reel device 110.

[0019] In Figure 1The first support structures 126, preferably with associated trolleys 126', are shown, which can be extended or pivoted beyond the width of the reeling unit 110 on the drive side AS and / or the operating side BS. They serve in particular for transporting the adjusting devices 116 out of the reeling unit 110 when these are worn or damaged after prolonged operation in the reeling unit. Alternatively, these support structures 126 serve for bringing new or repaired adjusting devices 116 into the reeling unit 110 as spare parts. The support structures 126 extend or are extendable, in particular, perpendicular to the plane of the drawing. Figure 1 .

[0020] A pressure roller AD1-AD3 and / or a deflection shield US1-US3 are detachably attached to the inner sides of the deflection shells 114.

[0021] Both are also wear parts that must be replaced after a certain period of use in the operation of the reel unit 110. This is done according to Figure 2The coil transport carriage 130, which can be moved into and out of the reeling device 110 on rails 136 using its own wheels 134, is equipped with a superstructure 132 for receiving the pressure rollers AD1-AD3 and / or the deflection shields US1-US3. To transport the deflection shields US1-US3 or the pressure rollers AD1-AD3 within the reeling device 110 between the deflection shells 114 and the superstructure 132, the invention provides second support structures 128, which extend or are extendable within the reeling device 110, in particular transversely to the longitudinal axis of the reel mandrel 112. These second support structures 128, like the first support structures 126, are attached to the bridge 120 or the bridge abutments 121, preferably to their underside.

[0022] For both the first and second support structures 126, 128, it is important to note that—especially if they are designed as support rails—they can be either extendable or retractable, for example, telescopic, or rigid. If they are extendable, the associated trolleys 126', 128' are unnecessary. However, if the support rails are rigid, it is recommended to move the parts of the reeling device along the support rails using the aforementioned trolleys 126', 128'.

[0023] Attaching the parts to the support devices and / or detaching the parts from them can be done using a lifting device, such as a rope or pulley system.

[0024] Figure 3Figure 1 shows the device according to the invention in a perspective view. The rails 136, by which the bale transport wagon 130 can be moved in and out of the reel unit 110, are particularly visible. Furthermore, the design of the bridge 120 as a roller conveyor with roller conveyor rollers 122 and side guides 124 on both sides is visible. Alternatively, instead of being designed as a roller conveyor, the bridge 120 can also be designed, for example, with skids or guide plates. Figure 3(Not shown) for transferring the strip over the reeling unit 110. Furthermore, switches 123 are visible on the bridge 120, which guide the strip coming from the inlet side E either into the reeling unit 110 to be wound into the coil, or alternatively, guide it over the bridge 120 to the outlet side A. The bridge can be equipped at its outlet end – particularly if it is part of the last reeling unit in a series of reeling units – with a catch device to prevent unwound strip from shooting uncontrollably over the last reeling unit and causing damage (not shown). Finally, drive devices 140 are mounted at the inlet side E and / or at the outlet side A for conveying the strip.

[0025] Figure 4 shows a cross-section through Figure 3 , as indicated there. Figure 4This illustrates in particular the operating side BS and the drive side AS. The rail 136 for moving the wagon 130 and the support devices 126 with the associated trolleys 126' for moving, in particular, the positioning devices 116 to the drive side AS are especially clearly visible.

[0026] The present invention also relates to the following methods for maintaining the reeling device 110.

[0027] A first procedure within the scope of maintenance involves removing at least one adjusting device 116 from the reel unit 110 if the adjusting device is worn or damaged. This procedure comprises the following steps: a) Attaching the adjusting device 116, preferably with the aid of a lifting device (not shown in the figures), to the support device 126 or to its trolley 126' within the reeling device 110; b) Detaching the adjusting device within the reeling device 110; and c) Removing the adjusting device 116 from the reeling device 110 by moving the first support device 126 or its trolley 126' with the attached adjusting device 116 to the operating side BS or the drive side AS of the reeling device 110. The movement can also involve pivoting, particularly if the support device is a crane.

[0028] Another maintenance procedure involves installing at least one adjusting device into the reel unit 110 as a new or refurbished spare part to replace a worn adjusting device. This procedure comprises the following steps: a) Extending the first support structure 126 or its trolley 126' outside the reeling unit 110 on its operating side BS or drive side AS. Extending can also involve pivoting, particularly if the support structure is a crane. b) Attaching the adjusting device 116 to the first support structure 126 or its trolley 126', preferably with the aid of the lifting device; c) Moving the first support structure 126 or its trolley 126' with the attached adjusting device 116 into the reeling unit 110; d) Securing the adjusting device 116 inside the reeling unit 110 at its pivot points; and e) Detaching the adjusting device 116 from the first support structure 126 or its trolley 126' or from the lifting device.

[0029] As part of the maintenance of the stationary reel unit 110, it may also be necessary to remove the pressure rollers AD1-AD3 and / or the deflection plates US1-US3 if they are worn or damaged. This procedure includes the following steps: a) Moving a bale transport trolley 130 with an empty attachment 132 for the pressure roller AD1-AD3 and / or the deflection plate US1-US3 into the reeling device 110; b) Attaching the pressure roller AD1-AD3 and / or the deflection plate US1-US3, preferably with the aid of the lifting device, to a second support device 128; c) Detaching the pressure roller AD1-AD3 and / or the deflection plate US1-US3 from the deflection shell 114-1, 114-2, 114-3; d) Transporting the pressure roller AD1-AD3 and / or the deflection plate US1-US3 with the aid of the second support device 128 and preferably with its trolley 128' to the attachment 132; e) Placing the pressure roller AD1-AD3 and / or the deflection shield US1-US3 on the attachment 132 of the bundle transport carriage 130 and releasing the parts from the support device 128; and f) Extending the bundle transport carriage 130 with the pressure roller AD1-AD3 and / or the deflection shield US1-US3 out of the reeling device 110, preferably on its operating side.

[0030] Finally, the inventive method for maintaining the stationary reel unit 110 can also include the installation of new or repaired pressure rollers AD1-AD3 and / or deflection shields US1-US3 as replacement parts for corresponding worn components. This installation method comprises the following steps: a) Moving the bundle transport trolley 130 with the pressure roller AD1-AD3 and / or the deflection plate US1-US3 into the reeling device 110, typically from its operating side BS; b) Attaching the pressure roller AD1-AD3 and / or the deflection plate US1-US3 to the second support device, preferably with the aid of the lifting device; c) Transporting the pressure roller AD1-AD3 and / or the deflection plate US1-US3 from the bundle transport trolley 130 to their respective deflection trays with the aid of the second support device 128 and preferably with its trolley 128'; d) Attaching the pressure roller AD1-AD3 and / or the deflection plate US1-US3 to the deflection tray (114-1, 114-2, 114-3) inside the reeling device 110; e) Detaching the parts from the second support direction; and f) Extending the bundle transport wagon 130 with the emptied attachment 132 out of the reeling device 110, typically on its operating side.

[0031] In all the described procedures, the order of the steps is not mandatory. Rather, the steps can also be carried out in any other sensible order.

[0032] Finally, the subject of the present invention is a hot rolling mill 300, as described in Figure 5 shown. It comprises a finishing rolling mill 310 for hot rolling the strip, optionally a cooling section 320 downstream of the finishing rolling mill 310 for cooling the hot-rolled strip, and a device 100, as previously described, with the stationary reeling device 110 in the line of the finishing rolling mill 310 for optionally reeling the cooled hot-rolled strip. Reference symbol list

[0033] 40 Band 100 Device 110 Reel device 112 Reel mandrel 114 Deflection shell 114-11. Deflection shell 114-22. Deflection shell 114-33. Deflection shell 116 Adjustment device for deflection shell 116-11. Adjustment device 116-22. Adjustment device 116-33. Adjustment device 118 Shaft roller table 120 Bridge 121 Bridge head 122 Roller walkway rollers 123 Switch 124 Side guides 125 Bridge pier 126 1st support device 126' Trolley 128 2nd support device 128' Trolley 130 Bundle transport wagon 132 Attachment for bundle transport wagon 134 Wheels 136 Rails 140 Driver device 200 Foundation 300 Hot rolling mill 310 Finishing rolling mill 320 Cooling section A Exit side AD1-AD3 Pressure roller AS Drive side A1 Deflection shell remote pivot point of the 1st deflection shell A1' Deflection shell side pivot point of the 1st deflection shell A2 Deflection shell remote pivot point of the 2nd deflection shell A2' Deflection shell side pivot point of the 2nd Deflection shell A3 Deflection shell-remote pivot point of the 3rd deflection shell A3 Deflection shell-side pivot point of the 3rdDeflection shell BS Operating side D1 Pivot point of the 1st deflection shell D2 Pivot point of the 2nd deflection shell D3 Pivot point of the 3rd deflection shell E Inlet side US1-US3 Deflection shield.

Claims

1. Device (100) comprising at least one coiler device (110) with a coiler mandrel (112) for winding up a strip (40), particularly a metal strip, to form a coil, with at least two deflecting shells (114-1, 114-2, 114-3), which are arranged to be distributed at the circumference of the coiler mandrel (112), for guiding the strip during winding around the coiler mandrel (112) and with adjusting devices (116-1, 116-2, 116-3) for individual adjustment of the deflecting shells (114-1, 114-2, 114-3) at the periphery of the coiler mandrel (112); and a bridge (120) which is mounted on bridge heads (121) and extends over the coiler device (110); characterised in that at least one support device (126, 128) for suspension of parts of the coiler device (110) is mounted on the bridge (120) and / or on the bridge heads.

2. Device (100) according to claim 1, characterised in that the support device (126, 128) is constructed in the form of a hook for suspension of the parts or in the form of preferably telescopic support rails or a crane, preferably in each instance with a trolley (126', 128') for suspension and transportation of the parts; and a lifting device, for example in the form of a tackle line or block-and-tackle, for suspension, lifting or lowering the parts of the coiler device is associated with the support device.

3. Device according to claim 2, characterised by at least one first support device (126), for example in the form of the support rail or crane, which can be moved or pivoted out or projects out at the drive side (AS) and / or the control side (BS) of the coiler device (110) over the width of the coiler device (110), for transporting the adjusting devices (116-1, 116-2, 116-3) as worn parts out of the coiler device (110) or as a replacement part into the coiler device (110).

4. Device (100) according to any one of the preceding claims, characterised in that a respective presser roller (AD1 - AD3) and / or a deflecting guard (US1 - US3) is or are detachably fastened to the inner side of the deflecting shells (114-1, 114-2, 114-3); and a coil transport carriage (130) with an attachment (132) for the presser rollers (AD1 - AD3) and / or the deflecting guards (US1 - US3) is provided for transporting the presser rollers (AD1 - AD3) and / or the deflecting guards (US1 - US3) as worn parts out of the coiler device (110) - preferably on the control side (BS) - or as replacement parts into the coiler device (110).

5. Device (100) according to claim 4, characterised by at least one second support device (128), for example in the form of the support rail or the crane, for transporting the deflecting guards (US) and / or the presser rollers (AD1 - AD3) as worn parts within the coiler device (110) from the respective deflecting shell (114) to the attachment (132) of the coil transport carriage (13) or within the coiler device (110) as replacement parts from the attachment (132) to the respective deflecting shell (114).

6. Device (100) according to any one of claims 3 to 5, characterised in that the first and second transport devices are identical.

7. Device (100) according to any one of the preceding claims, characterised in that the deflecting shells are each mounted to be rotatable about a respective fulcrum (D1, D2, D3); the adjusting devices (116-1, 116-2, 116-3) each have an articulation point (A1', A2', A3'), by which they are articulated to the deflecting shells, at the deflecting shell side and an articulation point (A1, A2, A3) remote from the deflecting shell; the fulcrum (D1) for at least a first one of the deflecting shells (114-1) and the articulation point (A1, which is remote from the deflecting shell, of the adjusting device (116-1) adjusting the first deflecting shell (114-1) are arranged at the bridge (120) or at one of the bridge heads (121); and the fulcrum (D2, D3) for at least a second one of the deflecting shells (114-2, 114-3) and the articulation point (A2, A3), which is remote from the deflecting shells, of the adjusting device (116-2, 116-3) adjusting the second deflecting shell (114-2, 114-3) are arranged at the coiler device (110).

8. Device (100) according to any one of the preceding claims, characterised in that a respective driver device (140) for conveying the strip is provided at each of the inlet side (E) and optionally also the outlet side (A) of the bridge (120).

9. Device (100) according to any one of the preceding claims, characterised in that the bridge heads (121) are mounted at the inlet side (E) and the outlet side (A) of the bridge (120) on respective bridge pillars (125), by way of which the bridge heads (121) and the bridge (120) are connected with a foundation (200) and between which the coiler device (110) is arranged in stationary position.

10. Device (100) according to any one of the preceding claims, characterised in that the bridge (120) is configured for conducting the strip away over the coiler device (110); and a diverter (123) arranged at the inlet side (E) of the bridge is provided for alternative conducting of the strip into the coiler device (110) or over the bridge (120) to beyond the coiler device (110).

11. Device (100) according to claim 10, characterised in that the bridge (120) is constructed as a roller path with roller path rollers (122); preferably at least individual ones of the roller path rollers (122) are directly driven by an electric motor; and preferably lateral guides (124) for guiding the strip are provided at both sides of the roller path.

12. Device (100) according to any one of the preceding claims, characterised in that the adjusting devices (116) are each constructed in the form of a hydraulic cylinder, an electric setting drive or a pneumatic setting drive.

13. Hot-rolling train (300) with a finishing rolling train (31) for hot-rolling a strip; a cooling path (320), which is downstream of the finishing rolling train (310), for cooling the hot-rolled strip; and a device (100) according to any one of the preceding claims with the stationary coiler device (11) in the line of the finishing rolling train for selectable coiling up of the cooled hot-rolled strip.

14. Method of servicing the stationary coiler device (110) within the device (100) according to any one of claims 1 to 12, characterised by the following steps for demounting the at least one adjusting device (116) as a worn part: a) suspending the adjusting device (116), preferably with the help of the lifting device, at the first support device (126) or at the trolley (126') thereof within the coiler device (110); b) detaching the adjusting device within the coiler device (110); and c) moving the adjusting device (116) out of the coiler device (110) by movement of the first support device (126) or the trolley (126') thereof with the suspended adjusting device (116) on the control side (BS) or the drive side (AS) of the coiler device (110).

15. Method of servicing the stationary coiler device (11) within the device (100) according to any one of claims 1 to 12, characterised by the following steps for installation of the at least one adjusting device (116) as a replacement part: a) movement out of the first support device (126) or the trolley (126') thereof to outside the coiler device (110) on the control side (BS) or drive side (AS) thereof; b) suspending the adjusting device (116) at the first support device (126) or at the trolley (126') thereof, preferably with the help of the lifting device; c) movement out of the first support device (126) or the trolley (126') thereof with the suspended adjusting device (116) into the coiler device (110); d) attaching the adjusting device (116) within the coiler device (110) to its articulation point; and e) detaching the adjusting device (116) from the first support device (126) or from the trolley (126') thereof.

16. Method of servicing the stationary coiler device within the device (100) according to any one of claims 1 to 12, characterised by the following steps for demounting the presser roller (AD1 - AD3) and / or the deflecting guard (US1 - US3) as worn parts from the coiler device (110); a) moving a coil transport carriage (130) with an empty attachment (132) for the presser roller (AD1 - AD3) and / or the deflecting guard (US1 - US3) into the coiler device (110); b) suspending the presser roller (AD1 - AD3) and / or the deflecting guard (US1 - US3), preferably with the help of the lifting device, at a second support device (128); c) detaching the presser roller (AD1 - AD3) and / or the deflecting guard (US1 - US3) from the deflecting shell (114-1, 114-2, 114-3); d) transporting the presser roller (AD1 - AD3) and / or the deflecting guard (US1 - US3) with the help of the second support device (128) and preferably with the trolley (128') thereof to the attachment (132); e) depositing the presser roller (AD1 - AD3) and / or the deflecting guard (US1 - US3) on the attachment (132) of the coil transport carriage (130) and detaching the parts from the support device (128); and f) moving the coil transport carriage (130) with the presser roller (AD1 - AD3) and / or the deflecting guard (US1 - US3) out of the coiler device (110), preferably on the control side thereof.

17. Method of servicing the stationary coiler device (110) within the device (100) according to any one of claims 1 to 12, characterised by the following steps for installation of the presser roller (AD1 - AD3) and / or the deflecting guard (US1 - US3) as a replacement part in the coiler device (110): a) moving the coil transport carriage (130) with the presser roller (AD1 - AD3) and / or the deflecting guard (US1 - US3) into the coiler device (110), typically from the control side (BS) thereof; b) suspending the presser roller (AD1 - AD3) and / or the deflecting guard (US1 - US3), preferably with the help of the lifting device, at the second support device; c) transporting the presser roller (AD1 - AD3) and / or the deflecting guard (US1 - US3) with the help of the second support device (128) and preferably with the trolley (128') thereof from the coil transport carriage (130) to the respective deflecting shell thereof; d) attaching the presser roller (AD1 - AD3) and / or the deflecting guard (US1 - US3) to the deflecting shell (114-1, 114-2, 114-3) within the coiler device (110); e) detaching the parts from the second support device; and f) moving the coil transport carriage (130) with the emptied attachment (132) out of the coiler device (110), typically on the control side thereof.