A thin slab continuous casting and rolling roll assisting assembly

Abstract

The utility model provides a kind of sheet blank continuous casting and rolling roll assisting assembly, including frame, roll assisting assembly, arc plate, roll assisting assembly includes roll assisting roll and two positioning components, positioning component is connected on frame, two ends of roll assisting roll are connected in two positioning components respectively, arc plate is close to roll assisting roll and is used to interval setting in the outer circumferential side of reel, the outer circumferential side of roll assisting roll is formed with tooth slot to recess inward, the side of arc plate close to roll assisting roll is formed with convex tooth to protrude towards roll assisting roll direction, convex tooth and the opening shape of tooth slot are matched to be embedded in tooth slot, and assembly gap is formed between convex tooth and tooth slot.Original linear gap becomes toothed curve gap in this way, under the premise of guaranteeing process requirement gap size, effectively avoid the phenomenon that strip head inserts into matching gap and leads to interrupted production, reduce failure rate, also reduce maintenance cost, prolong equipment service life, effectively speed up production rhythm, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of hot rolling technology of steel, and in particular to a thin slab continuous casting and rolling auxiliary roll assembly. Background Technology

[0002] In thin slab continuous casting and rolling production lines, the coiling machine is one of the core pieces of equipment for achieving continuous strip forming. The auxiliary coiling roller assembly, as a key supporting device for the coiling machine, directly determines the stability and production efficiency of the strip winding process. The core function of the auxiliary coiling roller assembly is to guide the strip head smoothly into the coiling machine mandrel through step control, and to provide auxiliary support during the winding process, ensuring a regular strip coil shape.

[0003] However, in actual production, the aforementioned traditional structure has significant technical defects: due to the thin and pointed structure of the strip head, when the fit gap between the auxiliary winding roller and the arc plate is not strictly matched to the process requirements, the strip head is very likely to insert into the linear gap, leading to steel entanglement and steel piling failures. Such failures not only force the production line to stop, causing a large amount of strip blanks to be scrapped and significantly reducing the product yield, but may also damage key components such as the auxiliary winding roller and arc plate due to the impact force generated by steel piling, increasing equipment maintenance costs and downtime; in addition, the wedges and pressure plates in the existing bearing housing locking mechanism are mostly designed separately. Under the long-term action of equipment vibration during the winding process, the wedges are prone to loosening or even falling off, leading to bearing housing fastening failure.

[0004] Therefore, it is necessary to propose a thin slab continuous casting and rolling auxiliary roll assembly to solve or at least alleviate the above-mentioned defects. Utility Model Content

[0005] The main objective of this invention is to provide a thin slab continuous casting and rolling auxiliary roll assembly to solve the problem that the auxiliary rolls in the prior art are prone to causing steel entanglement and steel accumulation, which affects production.

[0006] To achieve the above objectives, this utility model provides a thin slab continuous casting and rolling auxiliary roll assembly, including a frame and auxiliary roll components and an arc plate mounted on the frame; wherein, The winding aid roller assembly includes a winding aid roller and two positioning assemblies arranged opposite each other along the axial direction of the winding aid roller. The positioning assemblies are connected to the frame, and both ends of the winding aid roller are respectively connected to the two positioning assemblies. The arc plate is disposed near the winding aid roller and is used to be spaced apart on the outer periphery of the drum; wherein, The outer periphery of the winding roller is recessed inward to form a toothed groove, and the side of the arc plate near the winding roller is raised in the direction of the winding roller to form a toothed protrusion. The toothed protrusion matches the opening shape of the toothed groove to be embedded in the toothed groove, and an assembly gap is formed between the toothed protrusion and the toothed groove.

[0007] Preferably, the tooth groove is V-shaped, and the convex tooth is a V-shaped protrusion that matches the tooth groove.

[0008] Preferably, there are multiple toothed grooves, which are equidistantly spaced along the axial direction of the winding roller.

[0009] Preferably, each positioning component includes a spacer, a first pressure cap, a bearing seat, an end sleeve, and a second pressure cap. The bearing seat is connected to the frame, and the end journal of the winding aid roller passes through the bearing seat. The first pressure cap and the second pressure cap are respectively connected to both sides of the bearing seat along the axial direction of the winding aid roller. The first pressure cap is located at one end near the winding aid roller. The spacer is sleeved between the first pressure cap and the journal of the winding aid roller, and the end sleeve is sleeved between the second pressure cap and the journal of the winding aid roller.

[0010] Preferably, each positioning component further includes a wedge, and the frame has recessed grooves on both sides of the auxiliary winding roller near the auxiliary winding roller along the axial direction of the auxiliary winding roller. The grooves are provided in a manner corresponding to the shape of the wedge, and the wedge is connected to the frame to be disposed in the grooves and engaged between the outer side of the bearing seat and the frame.

[0011] Preferably, the wedge is stepped on the side closest to the frame.

[0012] Preferably, each of the positioning components further includes an end plate connected to the end of the winding roller to seal the connection in the end sleeve.

[0013] Preferably, the arc plate is fixed to the side of the frame near the drum by bolts.

[0014] Preferably, a positioning groove is recessed on the frame, and a positioning block is protruded on the side of the arc plate near the frame, the positioning block being engaged in the positioning groove.

[0015] Preferably, the interval between any two adjacent tooth grooves is 200mm to 220mm.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This utility model provides a thin slab continuous casting and rolling auxiliary roll assembly, including a frame and auxiliary roll components and an arc plate mounted on the frame. The auxiliary roll component includes an auxiliary roll and two positioning components arranged opposite each other along the axial direction of the auxiliary roll. The positioning components are connected to the frame, and both ends of the auxiliary roll are respectively connected to the two positioning components. The arc plate is positioned close to the auxiliary roll and spaced apart on the outer periphery of the roll. The outer periphery of the auxiliary roll is recessed inward to form a toothed groove, and the side of the arc plate close to the auxiliary roll protrudes towards the auxiliary roll to form a tooth. The shape of the tooth matches the opening of the toothed groove to be embedded in the toothed groove, and an assembly gap is formed between the tooth and the toothed groove. In this way, the original linear gap is transformed into a toothed curved gap. While ensuring the gap size required by the process, it effectively avoids the phenomenon of strip head inserting into the mating gap and causing production interruption, reduces the failure rate, reduces maintenance costs, extends equipment service life, effectively speeds up the production rhythm, and improves production efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure in one embodiment of the present utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model in an application scenario. Figure 3 This is a cross-sectional schematic diagram of the end of the winding roller in one embodiment of the present invention; Figure 4 This is a frontal view of the winding roller in one embodiment of the present invention; Figure 5 This is a three-dimensional schematic diagram of the arc plate in one embodiment of the present utility model; Figure 6 This is a partial cross-sectional view of the wedge block in one embodiment of the present invention.

[0019] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0020] Explanation of icon numbers: 10. Frame; 110. Slot; 120. Positioning slot; 20. Auxiliary winding roller assembly; 210. Auxiliary winding roller; 211. Toothed groove; 220. Positioning assembly; 221. Spacer; 222. First pressure cap; 223. Bearing seat; 224. End sleeve; 225. Second pressure cap; 226. Wedge block; 227. End plate; 30. Arc plate; 310. Convex tooth; 320. Positioning block; 40. Drum. Detailed Implementation

[0021] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0025] Please see the appendix Figure 1-6 The present invention provides an embodiment of a thin slab continuous casting and rolling auxiliary roll assembly, comprising a frame 10 and an auxiliary roll assembly 20 and an arc plate 30 mounted on the frame 10, the specific details of which are as follows: The winding roller assembly 20 includes a winding roller 210 and two positioning components 220 arranged opposite each other along the axial direction of the winding roller 210. The positioning components 220 are connected to the frame 10. The two ends of the winding roller 210 are respectively connected to the two positioning components 220. The arc plate 30 is arranged near the winding roller 210 and is used to be spaced apart on the outer periphery of the drum 40. The outer periphery of the winding roller 210 is recessed inward to form a toothed groove 211. The side of the arc plate 30 near the winding roller 210 protrudes towards the winding roller 210 to form a toothed tooth 310. The toothed tooth 310 matches the opening shape of the toothed groove 211 to be embedded in the toothed groove 211, and an assembly gap is formed between the toothed tooth 310 and the toothed groove 211.

[0026] Specifically, the thin slab continuous casting and rolling auxiliary coiling roll assembly in this application includes a frame 10, an auxiliary coiling roll assembly 20, and an arc plate 30. The frame 10 is used for mounting and connecting the auxiliary coiling roll assembly 20 and the arc plate 30, and for mounting the entire assembly on the coiler. The auxiliary coiling roll assembly 20 consists of an auxiliary coiling roll 210 and two positioning components 220. The auxiliary coiling roll 210 plays an auxiliary guiding role when the coiler is working, while the two positioning components 220 help to stabilize the auxiliary coiling roll 210 and can be arranged on the frame 10. The arc plate 30 also serves as a guide, and its arc-shaped contour is adapted to the outer periphery of the drum 40. In the initial stage of strip winding, the arc-shaped surface fits the strip head, guiding the thin and sharp strip head smoothly into the winding machine core along a preset trajectory, avoiding the strip head from shifting or wrinkling due to lack of guidance, and ensuring the initial stability of the winding process.

[0027] The outer periphery of the winding roller 210 is recessed inward to form a toothed groove 211, and the side of the arc plate 30 near the winding roller 210 protrudes towards the winding roller 210 to form a toothed protrusion 310. This is different from the traditional linear gap between the winding roller 210 and the arc plate 30, which easily leads to the insertion of the thin strip head and steel piling. The "toothed protrusion 310-toothed groove 211" interlocking structure can completely break the linear gap, dividing the gap into several independent local micro gaps, structurally blocking the insertion path of the strip head, significantly reducing the failure rate of steel winding and steel piling, reducing production line downtime and billet scrap, and improving product yield. The reserved assembly gap not only avoids motion interference between the winding roller 210 and the arc plate 30 when rotating, but also adapts to thermal expansion and contraction during equipment operation, ensuring that the winding roller 210 maintains smooth rotation during long-term operation. At the same time, the interlocking structure provides radial positioning for the arc plate 30 and the winding roller 210, reducing their relative offset and further improving the stability of the winding process.

[0028] In a preferred embodiment of the present invention, the tooth groove 211 is V-shaped, and the protruding tooth 310 is a V-shaped protrusion that matches the tooth groove 211.

[0029] It should be noted that the V-shaped protrusion 310 and the inclined surface of the tooth groove 211 can form a bidirectional positioning, which avoids misalignment between the protrusion 310 and the tooth groove 211 when the auxiliary winding roller 210 rotates, ensuring that the two maintain a precise fit over a long period of time, further reducing the risk of abnormal gaps, and facilitating processing. The matching of the protrusion 310 and the tooth groove 211 can be achieved without complex precision control. At the same time, the guiding effect of the V-shaped inclined surface can quickly complete the alignment of the arc plate 30 and the auxiliary winding roller 210 during assembly, improving installation efficiency.

[0030] In a preferred embodiment of the present invention, the number of the toothed grooves 211 is multiple, and the multiple toothed grooves 211 are arranged at equal intervals along the axial direction of the winding roller 210.

[0031] It should be noted that the equally spaced toothed grooves 211 can make the stress distribution on the outer periphery of the winding roller 210 more uniform, avoiding deformation of the winding roller 210 caused by local stress concentration. Simultaneously, the number of protruding teeth 310 also corresponds to the number of toothed grooves 211, and the engagement of multiple protruding teeth 310 with toothed grooves 211 breaks the linear gap and prevents the belt head from being inserted. Preferably, the interval between each two adjacent toothed grooves 211 is 200mm~220mm, which can be selected by those skilled in the art as needed.

[0032] In a preferred embodiment of the present invention, each positioning component 220 includes a spacer 221, a first pressure cap 222, a bearing seat 223, an end sleeve 224, and a second pressure cap 225. The bearing seat 223 is connected to the frame 10. The end journal of the auxiliary winding roller 210 passes through the bearing seat 223. The first pressure cap 222 and the second pressure cap 225 are respectively connected to both sides of the bearing seat 223 along the axial direction of the auxiliary winding roller 210. The first pressure cap 222 is located near one end of the auxiliary winding roller 210. The spacer 221 is sleeved between the first pressure cap 222 and the journal of the auxiliary winding roller 210. The end sleeve 224 is sleeved between the second pressure cap 225 and the journal of the auxiliary winding roller 210.

[0033] It is worth noting that the bearing housing 223 is used for the installation and connection of the auxiliary winding roller 210 to be placed on the frame 10. The first pressure cover 222 and the second pressure cover 225 are fastened from both sides of the bearing housing 223, which can accurately position the bearing on the journal of the auxiliary winding roller 210 and avoid the auxiliary winding roller 210 from swaying due to bearing loosening. The spacer 221 and the end sleeve 224 respectively fill the gap between the first pressure cover 222, the second pressure cover 225 and the journal, further restricting the radial displacement of the auxiliary winding roller 210, ensuring that the auxiliary winding roller 210 maintains high coaxiality rotation for a long time and reducing gap fluctuations caused by swaying. This combination forms a modular positioning component 220. The modular combination structure allows each component to be disassembled and replaced individually without disassembling the entire auxiliary winding roller assembly, reducing maintenance difficulty and shortening downtime for maintenance.

[0034] In a preferred embodiment of the present invention, each positioning component 220 further includes a wedge 226. The frame 10 has recessed grooves 110 on both sides of the auxiliary winding roller 210 along the axial direction of the auxiliary winding roller 210. The grooves 110 are correspondingly arranged to the shape of the wedge 226. The wedge 226 is connected to the frame 10 to be disposed in the grooves 110 and is engaged between the outer side of the bearing seat 223 and the frame 10.

[0035] It is worth noting that the wedge 226 engages between the slot 110 of the frame 10 and the bearing seat 223, and can provide directional locking force for the impact load direction (such as the radial impact force of the strip) on the bearing seat 223 during the winding process, preventing the bearing seat 223 from shifting during vibration, ensuring that the fit clearance between the auxiliary winding roller 210 and the arc plate 30 does not change abnormally; and solving the problem of the bearing seat 223 loosening and falling off due to vibration.

[0036] Furthermore, the wedge 226 is stepped on the side near the frame 10.

[0037] It should be noted that the stepped structure can increase the contact area between the wedge 226 and the slot 110 of the frame 10, thereby increasing the friction between the two and improving the locking and anti-loosening performance.

[0038] Furthermore, each of the positioning components 220 also includes an end plate 227, which is connected to the end of the auxiliary winding roller 210 to seal the connection in the end sleeve 224.

[0039] It should be understood that the end plate 227 can effectively block impurities such as dust, cooling water, and rolling oil from entering the end sleeve 224, preventing impurities from contaminating the bearing or causing bearing corrosion, significantly extending the bearing's service life and reducing the frequency of bearing replacement.

[0040] Furthermore, the arc plate 30 is fixed to the side of the frame 10 near the drum 40 by bolts.

[0041] It should be noted that the tightness of the bolt connection can prevent the arc plate 30 from shifting during winding vibration, ensuring that the arc plate 30 and the tooth 310-tooth groove 211 of the auxiliary winding roller 210 always maintain precise fit. At the same time, the installation position close to the drum 40 can make the arc plate 30 closer to the strip winding area, improving the guiding accuracy of the strip head.

[0042] It should be noted that the wedge 226 is also bolted to the frame 10. Since the wedge 226 has a stepped, inclined surface, it will shift laterally along the slope when tightened by the bolts. Therefore, the bolt holes connecting the wedge 226 need to be machined into elongated holes to avoid affecting the slight lateral shift caused by the tightening of the arc plate. Furthermore, a gap is reserved between the top of the wedge 226 and the slot 110 of the frame 10 to accommodate the pre-tightening of the wedge 226. Please refer to the appendix for details. Figure 6 .

[0043] Furthermore, a positioning groove 120 is recessed on the frame 10, and a positioning block 320 is protruded on the side of the arc plate 30 near the frame 10, and the positioning block 320 is engaged in the positioning groove 120.

[0044] It should be noted that the shape matching design of the positioning block 320 and the positioning groove 120 can provide an intuitive positioning reference when installing the arc plate 30, avoid misalignment of the tooth 310-groove 211 caused by manual alignment deviation, ensure consistent positional accuracy of the arc plate 30 after each installation, and reduce gap abnormalities caused by assembly errors.

[0045] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A thin slab continuous casting and rolling auxiliary coil assembly, characterized in that, Includes a frame and an auxiliary winding roller assembly and an arc plate mounted on the frame; wherein, The winding aid roller assembly includes a winding aid roller and two positioning assemblies arranged opposite each other along the axial direction of the winding aid roller. The positioning assemblies are connected to the frame, and both ends of the winding aid roller are respectively connected to the two positioning assemblies. The arc plate is disposed near the winding aid roller and is used to be spaced apart on the outer periphery of the drum; wherein, The outer periphery of the winding roller is recessed inward to form a toothed groove, and the side of the arc plate near the winding roller is raised in the direction of the winding roller to form a toothed protrusion. The toothed protrusion matches the opening shape of the toothed groove to be embedded in the toothed groove, and an assembly gap is formed between the toothed protrusion and the toothed groove.

2. The thin slab continuous casting and rolling auxiliary coil assembly according to claim 1, characterized in that, The tooth groove is V-shaped, and the convex tooth is a V-shaped protrusion that matches the tooth groove.

3. The thin slab continuous casting and rolling auxiliary coil assembly according to claim 2, characterized in that, The number of toothed grooves is multiple, and the multiple toothed grooves are arranged at equal intervals along the axial direction of the winding roller.

4. The thin slab continuous casting and rolling auxiliary coil assembly according to claim 2, characterized in that, Each of the positioning components includes a spacer, a first pressure cap, a bearing seat, an end sleeve, and a second pressure cap. The bearing seat is connected to the frame, and the end journal of the winding aid roller passes through the bearing seat. The first pressure cap and the second pressure cap are respectively connected to both sides of the bearing seat along the axial direction of the winding aid roller. The first pressure cap is located at one end closer to the winding aid roller. The spacer is sleeved between the first pressure cap and the journal of the winding aid roller, and the end sleeve is sleeved between the second pressure cap and the journal of the winding aid roller.

5. The thin slab continuous casting and rolling auxiliary coil assembly according to claim 4, characterized in that, Each of the positioning components further includes a wedge, and the frame has recessed grooves on both sides of the auxiliary winding roller near the auxiliary winding roller along the axial direction of the auxiliary winding roller. The grooves are provided in a shape corresponding to the wedge, and the wedge is connected to the frame to be disposed in the groove and engaged between the outer side of the bearing seat and the frame.

6. The thin slab continuous casting and rolling auxiliary coil assembly according to claim 5, characterized in that, The wedge is stepped on the side closest to the frame.

7. The thin slab continuous casting and rolling auxiliary coil assembly according to claim 4, characterized in that, Each of the positioning components further includes an end plate connected to the end of the winding roller to seal the connection within the end sleeve.

8. The thin slab continuous casting and rolling auxiliary coil assembly according to claim 1, characterized in that, The arc plate is fixed to the frame on the side near the drum by bolts.

9. The thin slab continuous casting and rolling auxiliary coil assembly according to claim 8, characterized in that, A positioning groove is recessed on the frame, and a positioning block is protruded on the side of the arc plate near the frame, and the positioning block is engaged in the positioning groove.

10. The thin slab continuous casting and rolling auxiliary coil assembly according to claim 3, characterized in that, The spacing between any two adjacent tooth grooves is 200mm to 220mm.

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