Tool and method for quickly replacing reducing sleeve of coiling machine

Abstract

The invention discloses a quick replacement tool and method for a reducing sleeve of a coiling machine in the technical field of replacement of diameter-increasing sector plates on the coiling machine, and the quick replacement tool comprises two fixing rings which are arranged at an interval in the axial direction, and each fixing ring comprises a plurality of arc-shaped plates which are detachably and fixedly connected end to end in sequence; a threaded through hole for positioning the diameter-increasing sector plate is formed in the arc-shaped plate; the multiple connecting beams are circumferentially distributed between the two fixing rings, and the two ends of the connecting beams are perpendicularly and fixedly connected with the arc-shaped plates correspondingly; the lifting ring is fixedly arranged on the connecting beam; the two supporting bases are fixedly connected to the lower portions of the two fixing rings in a one-to-one correspondence mode. According to the invention, an integral structure is adopted to replace a split structure, and the reducing sleeve formed by assembling the diameter-increasing sector plates is directly fixed on the mandrel of the coiling machine, so that the personnel investment can be reduced, the operation time can be shortened, the maintenance efficiency can be improved, and the maintenance quality can be ensured.

Description

Technical Field

[0001] The invention relates to the technical field of replacing a diameter increasing sector plate on a coiler, and in particular to a tool and method for quickly replacing a different diameter sleeve of a coiler. Background Art

[0002] The steel coils produced in the cold rolling area will flow to multiple automobile manufacturing plants, and the radial dimensions of the mandrels of the uncoilers used in each plant are different. Therefore, it is necessary to roll out steel coils with different inner diameters according to the uncoiler requirements of different owners.

[0003] At present, in order to roll out steel coils with different inner diameters, the radial size of the reel can be adjusted by adding or removing sector plates on the mandrel of the coiler, thereby adjusting the inner diameter of the steel coil. Since the four sector plates are fixedly connected to the mandrel by connecting bolts, when replacing the sector plates, the four sector plates are hoisted and replaced one by one, which is not only time-consuming and difficult, but also dangerous.

[0004] Therefore, how to improve the rapid disassembly and assembly of the diameter-increasing sector plate on the coiler mandrel has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] In view of this, the object of the present invention is to provide a quick-changing tool for a coiler reducing sleeve to solve the technical problem of low replacement efficiency of the existing increasing diameter sector plate.

[0006] The technical solution adopted by the present invention is: a quick-changing tool for reducing sleeves of a coiler, comprising:

[0007] A fixing ring, two of the fixing rings are arranged at an axial distance, the fixing ring comprises a plurality of arc-shaped plates which are detachably fixedly connected end to end, and the arc-shaped plates are provided with threaded through holes for positioning the diameter-increasing sector plates;

[0008] A connecting beam, wherein a plurality of the connecting beams are circumferentially distributed between the two fixing rings, and both ends of the connecting beams are respectively vertically fixedly connected to the arc-shaped plate;

[0009] A lifting ring, wherein the lifting ring is fixedly arranged on the connecting beam;

[0010] A support base, wherein the two support bases are fixedly connected below the two fixing rings in a one-to-one correspondence.

[0011] Preferably, the fixing ring comprises an upper arc plate, a side arc plate and a lower arc plate, the bottom ends of the two side arc plates are axially plug-connected with the two ends of the lower arc plate, and the top ends of the two side arc plates are hinged with the two ends of the upper arc plate.

[0012] The second object of the present invention is to provide a method for quickly replacing a reducing sleeve of a coiler, the method using the above-mentioned tooling, the method comprising the following steps:

[0013] Install multiple diameter-increasing sector plates on the tooling to form a reducing sleeve, and use positioning bolts to fix the reducing sleeve to the fixing ring of the tooling;

[0014] The inspection platform is hoisted above the coil transport trolley, and the lifting part of the coil transport trolley is raised to pass through the inspection platform;

[0015] Hang the reducing sleeve to the top of the lifting part;

[0016] The reducing sleeve is coaxially sleeved on the outer side of the core shaft through the horizontal movement of the coil transport trolley and the lifting and lowering of the lifting part;

[0017] First, each diameter-increasing sector plate of the reducing sleeve is fixedly connected to the mandrel by connecting bolts, and then the positioning bolts between the diameter-increasing sector plate and the tooling are removed;

[0018] First, the diameter-increasing sector plate is separated from the tooling by contracting the mandrel, and then the tooling is removed.

[0019] Preferably, the maintenance platform is equipped with a lifting frame.

[0020] Preferably, the bottom of the maintenance platform is fixedly connected to the coil transport trolley by bolts.

[0021] Beneficial effects of the present invention:

[0022] The present invention adopts an integral structure instead of a split structure, and fixing rings are fixedly connected at both ends of the axial direction of the connecting beam, and the fixing rings are composed of multiple arc-shaped plates that are detachably fixedly connected head to tail in sequence. The multiple diameter-increasing sector plates spliced ​​into a different diameter sleeve can be axially and radially fixed by the arc-shaped plates and positioning bolts. The different diameter sleeve can be directly fixed on the core shaft of the coiler by the connecting bolts in conjunction with the coiling trolley for the transportation and lifting of the different diameter sleeve. This can not only reduce the personnel input and shorten the operation time, but also improve the maintenance efficiency and ensure the maintenance quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the fast replacement tooling for the different-diameter sleeve of the coiler of the present invention;

[0024] Figure 2 It is a front view of the quick-changing tooling for the reducing sleeve of the coiler of the present invention;

[0025] Figure 3 This is a schematic diagram of the use state of the quick-changing tool for the reducing sleeve of the coiler of the present invention;

[0026] Figure 4This is the second schematic diagram of the use status of the fast replacement tool for the different-diameter sleeve of the coiler of the present invention.

[0027] Description of reference numerals in the figures:

[0028] 10. Fixed ring;

[0029] 11. Upper curved plate; 12. Side curved plate; 13. Lower curved plate; 14. Threaded through hole;

[0030] 20. Connecting beam;

[0031] 30. Lifting ring;

[0032] 40. Support base;

[0033] 50. Maintenance platform;

[0034] 51. Lifting frame;

[0035] 60. Reducing sleeve;

[0036] 61. Increased diameter sector plate;

[0037] 70. Coil transport trolley;

[0038] 71. Lifting unit;

[0039] 80. Mandrel. DETAILED DESCRIPTION

[0040] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention, but not to limit the present invention.

[0041] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0044] Examples, such as Figure 1-Figure 4 As shown, a tool for quickly changing a different-diameter sleeve of a coiler, the tool comprising:

[0045] The fixing ring 10 is two in number and arranged at an axial distance from each other. The fixing ring 10 comprises a plurality of arc plates which are detachably and fixedly connected end to end in sequence, and a threaded through hole 14 is provided on the arc plate for positioning the diameter-increasing sector plate 61 .

[0046] The connecting beam 20 is multiple in number, and the multiple connecting beams 20 are circumferentially distributed between the two fixing rings 10, and the two ends of the connecting beam 20 are respectively fixedly connected vertically to the arc plate, that is, one end of the connecting beam 20 is fixedly connected to one fixing ring 10, and the other end of the connecting beam 20 is fixedly connected to the other fixing ring 10.

[0047] The lifting ring 30 is provided in plurality and is fixedly mounted on the connecting beam 20 .

[0048] The supporting base 40 includes two supporting bases 40 , and the two supporting bases 40 are fixedly connected under the two fixing rings 10 in a one-to-one correspondence.

[0049] The present application adopts an integral structure instead of a split structure, and a fixing ring 10 is fixedly connected at both axial ends of the connecting beam 20, and the fixing ring 10 is composed of a plurality of arc-shaped plates which are detachably fixedly connected end to end in sequence. The plurality of increasing diameter sector plates 61 spliced ​​into a reducing sleeve 60 can be axially and radially fixed by the arc-shaped plates and positioning bolts, and the reducing sleeve 60 can be directly fixed on the core shaft 80 of the coiler by the connecting bolts in cooperation with the coil transport trolley 70 for the transportation and lifting of the reducing sleeve 60. This can not only improve the replacement efficiency of the increasing diameter sector plates 61, but also ensure the safety of the replacement process.

[0050] In a specific embodiment, if Figure 1 , Figure 2As shown, the fixing ring 10 includes an upper arc plate 11, a side arc plate 12 and a lower arc plate 13; wherein, the number of the side arc plates 12 is two, the upper arc plate 11 is arranged directly above the lower arc plate 13, and the bottom ends of the two side arc plates 12 are plugged and fixedly connected with the two ends of the lower arc plate 13 along the axial direction, and the top ends of the two side arc plates 12 are detachably fixedly connected with the two ends of the upper arc plate 11, such as hinged.

[0051] This arrangement is because: the number of the increasing diameter sector plates 61 constituting the reducing sleeve 60 is four, and there are diameter-changing gaps between the four increasing diameter sector plates 61 , so it is difficult to splice the four dispersed increasing diameter sector plates 61 into a complete reducing sleeve 60 .

[0052] In this embodiment, the fixing ring 10 is composed of an upper arc plate 11, two side arc plates 12 and a lower arc plate 13. The lower arc plate 13 is fixedly connected to the support base 40, so that the lower arc plate 13 can be directly fixedly placed on the factory floor. At the same time, the diameter-increasing sector plate 61 is placed between the two lower arc plates 13, and the diameter-increasing sector plate 61 is fixedly connected to the lower arc plate 13 using positioning bolts; then the bottom ends of the two side arc plates 12 are axially plugged and connected to the two top ends of the lower arc plate 13 to achieve radial fixed connection between the side arc plates 12 and the lower arc plate 13 , and fix the two increasing diameter fan-shaped plates 61 on the inner side of the side arc plate 12 by means of positioning bolts to achieve the fixation of the two increasing diameter fan-shaped plates 61; finally, first fix the upper arc plate 11 and an increasing diameter fan-shaped plate 61 in connection by means of positioning bolts, and then hoist the upper arc plate 11 and the increasing diameter fan-shaped plate 61 as a whole above the two side arc plates 12, and fix the two bottom ends of the upper arc plate 11 to the top ends of the two side arc plates 12 by means of hinge shafts. In this way, not only the four increasing diameter fan-shaped plates 61 are spliced ​​into a different diameter sleeve 60, but also a diameter adjustment gap can be provided between two adjacent increasing diameter fan-shaped plates 61.

[0053] Examples, such as Figure 3 , Figure 4 As shown, a method for quickly replacing a different-diameter sleeve of a coiler is provided, wherein the method uses the above-mentioned tooling for quickly replacing a different-diameter sleeve of a coiler, and the method comprises the following steps:

[0054] A plurality of diameter-increasing sector plates 61 are mounted on a tool to form a reducing sleeve 60 , and the reducing sleeve 60 is fixedly connected to a fixing ring 10 of the tool using positioning bolts.

[0055] The inspection platform 50 is hoisted above the coil transporting trolley 70 , and the lifting portion 71 of the coil transporting trolley 70 is raised to penetrate the inspection platform 50 .

[0056] The reducing sleeve 60 together with the tooling is hoisted to the top of the lifting part 71 .

[0057] The reducing sleeve 60 is coaxially sleeved on the outer side of the core shaft 80 by the horizontal movement of the coil transporting trolley 70 and the lifting and lowering of the lifting part 71 .

[0058] First, each diameter-increasing sector plate 61 of the reducing sleeve 60 is fixedly connected to the core shaft 80 by connecting bolts, and then the positioning bolts between the diameter-increasing sector plate 61 and the fixing ring 10 are removed.

[0059] First, the diameter-increasing sector plate 61 is separated from the tooling by contracting the core shaft 80 , and then the tooling is horizontally moved by the coil transporting trolley 70 .

[0060] In a specific embodiment, if Figure 4 As shown, a lifting bracket 51 is installed on the maintenance platform 50 , and the lifting bracket 51 is used to lift the reducing sleeve 60 together with the tooling as a whole onto the coil transport trolley 70 .

[0061] In a specific embodiment, the bottom of the maintenance platform 50 is fixedly connected to the coil transport trolley 70 by bolts.

[0062] The use process of the tooling of the present invention is as follows:

[0063] After the mandrel of the coiler is expanded, the diameter-increasing sector plate is first fixedly connected to the fixing ring of the tooling through connecting bolts, and then the connecting bolts between the mandrel and the diameter-increasing sector plate are removed, and finally the mandrel is contracted to separate the mandrel and the reducing sleeve.

[0064] Using the coil transport trolley to carry the tooling can not only adjust the height of the tooling, but also control the forward and backward movement of the tooling, and ensure that the median vertical plane of the tooling and the core shaft are on the same plane; the maintenance platform is arranged on both sides of the tooling, and the lifting part rises or descends in the middle of the maintenance platform. There are platforms on both sides during the construction process, which is conducive to personnel operation and positioning.

[0065] Compared with the prior art, this application has at least the following beneficial technical effects:

[0066] Using the tooling in this application to replace the diameter-increasing sector plate can reduce the replacement operation time from the original 8 hours to 4 hours, thereby improving labor efficiency and shortening construction operation time; at the same time, during the replacement operation, the number of operators is reduced from the original 6 to 4, thereby reducing labor costs and labor load.

[0067] Using the tooling in this application to replace the diameter-increasing sector plate can effectively avoid damage to the diameter-increasing sector plate, improve the maintenance quality, and significantly reduce safety risks.

[0068] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A quick-change tool for reducing sleeves of a coiler, characterized in that: include: A fixing ring (10), wherein two fixing rings (10) are arranged at an axial distance, the fixing ring (10) comprises a plurality of arc-shaped plates which are detachably fixedly connected end to end, and the arc-shaped plates are provided with threaded through holes (14) for positioning the diameter-increasing sector plate (61); A connecting beam (20), wherein a plurality of the connecting beams (20) are circumferentially distributed between the two fixing rings (10), and both ends of the connecting beams (20) are respectively vertically fixedly connected to the arc-shaped plate; A lifting ring (30), wherein the lifting ring (30) is fixedly arranged on the connecting beam (20); A support base (40), wherein the two support bases (40) are fixedly connected below the two fixing rings (10) in a one-to-one correspondence.

2. The quick-change tool for reducing sleeves of a coiler according to claim 1 is characterized in that: The fixing ring (10) comprises an upper arc plate (11), a side arc plate (12) and a lower arc plate (13); the bottom ends of the two side arc plates (12) are plug-connected with the two ends of the lower arc plate (13) along the axial direction; the top ends of the two side arc plates (12) are hinged with the two ends of the upper arc plate (11).

3. A method for quickly replacing a different-diameter sleeve of a coiler, the method using the tool for quickly replacing a different-diameter sleeve of a coiler according to claim 1 or 2, characterized in that: The method comprises the following steps: Installing a plurality of diameter-increasing sector plates (61) on a tool to form a reducing sleeve (60), and using positioning bolts to fix the reducing sleeve (60) to a fixing ring (10) of the tool; The inspection platform (50) is hoisted above the coil transport trolley (70), and the lifting part (71) of the coil transport trolley (70) is lifted up to penetrate the inspection platform (50); The reducing sleeve (60) is hoisted to the top of the lifting part (71); The reducing sleeve (60) is coaxially sleeved on the outer side of the core shaft (80) by horizontal movement of the coil transport trolley (70) and lifting and lowering of the lifting part (71); First, each diameter-increasing sector plate (61) of the reducing sleeve (60) is fixedly connected to the mandrel (80) by connecting bolts, and then the positioning bolts between the diameter-increasing sector plate (61) and the tooling are removed; First, the diameter-increasing sector plate (61) is separated from the tooling by contracting the mandrel (80), and then the tooling is removed.

4. A method for quickly replacing a reducing sleeve of a coiler according to claim 3, characterized in that: The maintenance platform (50) is equipped with a lifting frame (51).

5. A method for quickly replacing a reducing sleeve of a coiler according to claim 3, characterized in that: The bottom of the inspection platform (50) is fixedly connected to the coil transport trolley (70) via bolts.

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