WO2016008216A1 - 一种板坯连铸机扇形段连铸辊的支撑结构 - Google Patents

一种板坯连铸机扇形段连铸辊的支撑结构 Download PDF

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Publication number
WO2016008216A1
WO2016008216A1 PCT/CN2014/087284 CN2014087284W WO2016008216A1 WO 2016008216 A1 WO2016008216 A1 WO 2016008216A1 CN 2014087284 W CN2014087284 W CN 2014087284W WO 2016008216 A1 WO2016008216 A1 WO 2016008216A1
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Prior art keywords
continuous casting
support
roller
slab
frame
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PCT/CN2014/087284
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English (en)
French (fr)
Inventor
康永林
朱国明
王新华
马建超
曲锦波
宇航
姜敏
许志刚
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北京科技大学
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Publication of WO2016008216A1 publication Critical patent/WO2016008216A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing

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  • the invention belongs to the technical field of metal continuous casting, in particular to a support structure of a continuous casting roll of a segment of a slab continuous casting machine.
  • FIG. 1 is a schematic view of a prior art slab continuous casting machine segment and a sectional roller
  • FIG. 2 is a schematic view showing the internal structure of a prior art slab continuous casting machine sectional roller
  • FIG. 3 is a prior art slab connection Schematic diagram of the internal structure of the splitting roller of the casting machine.
  • the driving roller 3 that is, the sectional roller It is composed of a hollow roller shaft 36 (hollow for cooling by water), an end bearing 31 and a bearing housing 32, a roller ring 33, an intermediate support bearing 34 and a bearing housing 35, and the intermediate support bearing housing 35 and the upper portion of the sector respectively.
  • the frame 6 and the lower frame 5 are joined to form a support for the segmented rolls, which typically have 2 to 3 segments.
  • the position of the sub-nodes of the pair of front and rear segments in the segment must be staggered.
  • the structure of the sectional roller of the slab continuous casting machine is very complicated, especially in the disassembly and assembly, the workload is large, the operation is complicated, and the spare parts consumption is also large.
  • the load of the continuous casting rolls and the segments will increase several times. Because the strength and rigidity of the sectional rolls are seriously insufficient, it will be difficult to withstand the large load generated by the large end of the solidification end. And deformation, and even if the integral driving roller is used, if the wide slab is subjected to large pressing, the driving roller will generate a large deflection deformation, which is disadvantageous for implementing the large pressing of the solidification end or greatly reducing the large depression. Effect.
  • the technical problem to be solved by the present invention is to provide a support structure for a continuous casting roll of a slab continuous casting machine to solve the problem that the structure of the sectional roller of the slab continuous casting machine in the prior art is very complicated, and the strength and rigidity are insufficient, and it is difficult to The slab is subject to problems such as large depression.
  • an embodiment of the present invention provides a support structure for a continuous casting roll of a slab continuous casting machine, wherein the segment includes a frame and a continuous casting roller and a transmission device disposed on the frame, and the pressing device
  • the continuous casting roll is mounted on the frame by a continuous casting roll bearing seat, and the pressing device drives the continuous casting roll to press and deform the slab, and the transmission drives the continuous casting roll to rotate for conveying the slab;
  • a support device is provided between the frame and the continuous casting roll.
  • the supporting device comprises a supporting seat, a supporting roller shaft and a supporting roller, the two ends of the supporting roller shaft are mounted on the supporting seat, the supporting seat is mounted on the frame, and the supporting roller is sleeved on the supporting roller shaft And in contact with the outer surface of the continuous casting roll.
  • the supporting device comprises a support base, a support roller shaft and a roller bearing, the support roller shafts are mounted on the support base at both ends, the support base is mounted on the frame, and the roller bearing is mounted on the support roller shaft It is in contact with the outer surface of the continuous casting roll.
  • the support roller shaft is provided with bearing retaining rings on both sides of the roller bearing.
  • the outer diameter of the roller bearing is 0.2 to 0.8 times the outer diameter of the continuous casting roller.
  • the supporting device is disposed between two continuous casting roller bearing seats, and is provided with 1-4 sets.
  • the continuous casting roll is made in one piece and is formed by an integral forming process.
  • the structure of the continuous casting roller is greatly simplified; the continuous casting roller can be made into a large roller diameter integral roller having a simple structure, so that the strength and The rigidity is significantly increased; the continuous casting roll and the supporting device are easy to disassemble and replace, the maintenance workload is greatly reduced, and the spare parts consumption is significantly reduced; at the same time, the continuous casting machine is more suitable for implementing the high load state when the solidification end is under large pressure. .
  • Figure 1 is a schematic view showing the structure of a segment of a slab continuous casting machine of the prior art
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1;
  • Figure 3 is a schematic view showing the internal structure of a sectional roller of a prior art slab continuous casting machine
  • FIG. 4 is a schematic structural view of a continuous casting roll of a segment of a slab continuous casting machine according to an embodiment of the present invention
  • Fig. 5 is a structural schematic view showing a support structure of a continuous casting roll of a slab continuous casting machine according to an embodiment of the present invention.
  • the invention is directed to the prior art, the structure of the sectional roller of the slab continuous casting machine is very complicated, and the strength and rigidity are insufficient, and it is difficult to carry out the large pressing of the slab, etc., and the support of the continuous casting roller of the slab continuous casting machine segment is provided. structure.
  • the present invention provides a support structure for a continuous casting roll of a slab continuous casting machine, wherein the segment includes a frame, a continuous casting roll 3 disposed on the frame, and a transmission device 7.
  • Depressing device 2 said frame comprising an upper frame 6, a lower frame 5 and a base frame 8, said base frame
  • the frame 8 is disposed at the bottom to support the entire segment, and the continuous casting roll 3 is mounted on the frame by the continuous casting roll chock 10, and the pressing device 2 drives the continuous casting roll 3 to press down the slab.
  • the transmission device 7 drives the continuous casting drum 3 to rotate for conveying the slab; and the frame and the continuous casting roller 3 are provided with supporting means.
  • the continuous casting roll 3 is of a unitary type and is formed by an integral forming process.
  • the support device includes a support base 91, a support roller shaft 92, and a support roller (not shown).
  • the support roller shaft 92 is mounted on the support base 91 at both ends, and the support base 91 is mounted on the frame.
  • the support roller is sleeved on the support roller shaft 92 and is in contact with the outer surface of the continuous casting roller 3.
  • the roll surface of the support roll is in contact with the roll surface of the continuous casting roll 3 and rotates with the continuous casting roll 3 to support the load and deformation of the continuous casting roll 3 under load; the load is transmitted through the support base 91 to the high-rigidity sector frame
  • the support device acts as an external dynamic continuous support for the continuous casting rolls.
  • one to four sets of supporting devices can be respectively installed between the upper frame of the continuous casting machine segment and the upper continuous casting roll and between the lower frame of the continuous casting machine segment and the lower continuous casting roll.
  • the present invention provides a support structure for a continuous casting roll of a slab continuous casting machine, wherein the segment includes a frame, a continuous casting roll 3 disposed on the frame, and a transmission device 7.
  • the frame comprises an upper frame 6, a lower frame 5 and a base frame 8, the base frame 8 being provided at the bottom to serve the entire sector, and the continuous casting roller 3 is passed through a continuous casting roller bearing
  • the seat 10 is mounted on a frame, the pressing device 2 drives the continuous casting roll 3 to press-deform the slab, and the transmission device 7 drives the continuous casting roll 3 to rotate for conveying the slab; the frame and the continuous casting roll There are support devices between the three.
  • the continuous casting roll 3 is of a unitary type and is formed by an integral forming process.
  • the support device includes a support base 91, a support roller shaft 92, and a roller bearing 94.
  • the support roller shaft 92 is mounted on the support base 91 at both ends, and the support base 91 is mounted on the frame, the roller
  • the bearing 94 is mounted on the support roller shaft 92 and is in contact with the outer surface of the continuous casting drum 3.
  • a bearing retaining ring 93 is disposed on both sides of the roller bearing 94 on the support roller shaft 92.
  • the outer diameter of the roller bearing 94 is 0.2 to 0.8 times the outer diameter of the continuous casting roll 3.
  • the outer surface of the roller bearing is in contact with the roll surface of the continuous casting roll 3 and rotates with the continuous casting roll 3 to support the load and deformation of the continuous casting roll 3 under stress.
  • the present invention employs a four-row roller bearing of high load capacity. The load is transmitted through the support base 91 to the frame of the high-rigidity segment, and the support device acts as an external dynamic continuous support for the continuous casting roll in this manner. According to the width of the continuous casting slab, in the upper frame of the continuous casting machine segment One to four sets of support devices can be installed between the upper continuous casting rolls and between the lower frame of the continuous casting machine segment and the lower continuous casting rolls.
  • the structure of the continuous casting roller is greatly simplified; the continuous casting roller can be made into a large roller diameter integral roller having a simple structure, so that the strength and The rigidity is significantly increased; the continuous casting roll and the supporting device are easy to disassemble and replace, the maintenance workload is greatly reduced, and the spare parts consumption is significantly reduced; at the same time, the continuous casting machine is more suitable for implementing the high load state when the solidification end is under large pressure. .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

一种板坯连铸机扇形段连铸辊的支撑结构，扇形段包括框架及设于框架上的连铸辊（3）、传动装置（7）、压下装置（2），连铸辊（3）通过连铸辊轴承座（10）安装于框架上，压下装置驱动连铸辊对板坯进行压下变形，传动装置驱动连铸辊转动用于传送板坯，框架与连铸辊之间设有支撑装置（9）。由于连铸机扇形段上支撑装置设置在连铸辊的外部，简化了连铸辊结构；连铸辊可制成大辊径整体式辊，增大了强度和刚度；连铸辊及支撑装置拆装更换操作简单；同时，该连铸机更适合于实施凝固末端大压下时的高载荷状态。

Description

一种板坯连铸机扇形段连铸辊的支撑结构 技术领域
本发明属于金属连铸技术领域，特别是指一种板坯连铸机扇形段连铸辊的支撑结构。
背景技术
众所周知，为控制连铸坯尺寸形状，现有板坯连铸机扇形段连铸辊多采用分节辊，尤其是宽板坯连铸时更是如此。扇形段采用多对小直径分节辊对控制板坯鼓肚和尺寸形状精度起到了很好的作用，因此，其应用十分广泛。图1为现有技术的板坯连铸机扇形段及分节辊示意图，图2为现有技术的板坯连铸机分节辊的内部结构示意图，图3是现有技术的板坯连铸机分节辊的内部结构示意图。由图1、图2、图3可见，包括夹紧缸1、压下装置2、驱动辊3、从动辊4、下部框架5、上部框架6以及传动装置7，驱动辊3即分节辊是由空心辊轴36(空心用于通水冷却)、端部轴承31及轴承座32、辊环33、中间支撑轴承34及轴承座35等组成，中间支撑轴承座35分别与扇形段的上部框架6及下部框架5连接形成对分节辊的支撑，分节辊通常有2～3个分节段。采用分节辊时，为了消除分节辊中间支撑轴承座35与辊环33对铸坯表面产生的压痕，扇形段内前后各对分节辊的分节点位置必须错开。
由此可见，板坯连铸机分节辊的结构十分复杂，尤其在拆装维修时工作量大、操作复杂、备件消耗量也大。另一方面，在实施凝固末端大压下时，连铸辊及扇形段的载荷将增大数倍，因分节辊的强度和刚度严重不足，将难以承受凝固末端大压下产生的大载荷及变形，而即使采用整体驱动辊时，如果对较宽板坯实施大压下，驱动辊也将产生较大的挠曲变形，这将不利于实施凝固末端大压下或大大降低大压下的效果。
发明内容
本发明要解决的技术问题是提供一种板坯连铸机扇形段连铸辊的支撑结构，以解决现有技术中板坯连铸机分节辊的结构十分复杂，且强度和刚度不足，难以对板坯实施大压下等问题。
为解决上述技术问题，本发明的实施例提供一种板坯连铸机扇形段连铸辊的支撑结构，其中，所述扇形段包括框架及设于框架上的连铸辊、传动装置，压下装置，所述连铸辊通过连铸辊轴承座安装于框架上，所述压下装置驱动连铸辊对板坯进行压下变形，所述传动装置驱动连铸辊转动用于传送板坯；所述框架与连铸辊之间设有支撑装置。
其中，所述支撑装置包括支撑座、支撑辊轴以及支撑辊，所述支撑辊轴两端安装于支撑座上，所述支撑座安装于框架上，所述支撑辊套设于支撑辊轴上并与连铸辊的外表面相接触。
其中，所述支撑装置包括支撑座、支撑辊轴以及滚柱轴承，所述支撑辊轴两端安装于支撑座上，所述支撑座安装于框架上，所述滚柱轴承安装于支撑辊轴上并与连铸辊的外表面相接触。
其中，所述支撑辊轴上位于滚柱轴承的两侧设有轴承挡圈。
其中，所述滚柱轴承的外径为连铸辊外径的0.2～0.8倍。
其中，所述支撑装置设置于两个连铸辊轴承座之间，设置有1～4组。
其中，所述连铸辊为整体式，采用一体成形工艺制成。
本发明的上述技术方案的有益效果如下：
上述方案中，由于连铸机扇形段上支撑装置设置在连铸辊的外部，因而使连铸辊结构大大简化；连铸辊可制成结构简单的大辊径整体式辊，使其强度和刚度显著增大；连铸辊及支撑装置拆装更换操作简单、维修工作量大大减少、备品备件消耗量显著减少；同时，该连铸机更适合于实施凝固末端大压下时的高载荷状态。
附图说明
图1是现有技术的板坯连铸机扇形段的结构示意图；
图2是图1中A-A方向的剖视图；
图3是现有技术的板坯连铸机分节辊的内部结构示意图；
图4是本发明实施例的板坯连铸机扇形段连铸辊的结构示意图；
图5是本发明实施例的板坯连铸机扇形段连铸辊的支撑结构的结构示意图。
[主要元件符号说明]
1：夹紧缸；
2：压下装置；
3：驱动辊；
4：从动辊；
5：下部框架；
6：上部框架；
7：传动装置；
8：基础框架；
9：支撑装置；
91：支撑座；
92：支撑辊轴；
93：轴承挡圈；
94：滚柱轴承；
10：连铸辊轴承座。
具体实施方式
为使本发明要解决的技术问题、技术方案和优点更加清楚，下面将结合附图及具体实施例进行详细描述。
本发明针对现有技术中板坯连铸机分节辊的结构十分复杂，且强度和刚度不足，难以对板坯实施大压下等问题，提供一种板坯连铸机扇形段连铸辊的支撑结构。
实施例一
如图4和图5所示的，本发明提供一种板坯连铸机扇形段连铸辊的支撑结构，其中，所述扇形段包括框架及设于框架上的连铸辊3、传动装置7，压下装置2，所述框架包括上部框架6、下部框架5以及基础框架8，所述基础框 架8设于最底部起到支撑整个扇形段的作用，所述连铸辊3通过连铸辊轴承座10安装于框架上，所述压下装置2驱动连铸辊3对板坯进行压下变形，所述传动装置7驱动连铸辊3转动用于传送板坯；所述框架与连铸辊3之间设有支撑装置。所述连铸辊3为整体式，采用一体成形工艺制成。
其中，所述支撑装置包括支撑座91、支撑辊轴92以及支撑辊(未图示)，所述支撑辊轴92两端安装于支撑座91上，所述支撑座91安装于框架上，所述支撑辊套设于支撑辊轴92上并与连铸辊3的外表面相接触。
支撑辊的辊面与连铸辊3的辊面接触并随连铸辊3转动以此支撑连铸辊3受力时的载荷及变形；将载荷通过支撑座91传递到高刚度的扇形段框架上，支撑装置以此方式对连铸辊起到外部动态连续支撑的作用。根据连铸板坯宽度需要，在连铸机扇形段上部框架与上连铸辊之间及连铸机扇形段下部框架与下连铸辊之间可分别安装1～4组支撑装置。
实施例二
如图4和图5所示的，本发明提供一种板坯连铸机扇形段连铸辊的支撑结构，其中，所述扇形段包括框架及设于框架上的连铸辊3、传动装置7，压下装置2，所述框架包括上部框架6、下部框架5以及基础框架8，所述基础框架8设于最底部起到支撑整个扇形段的作用，所述连铸辊3通过连铸辊轴承座10安装于框架上，所述压下装置2驱动连铸辊3对板坯进行压下变形，所述传动装置7驱动连铸辊3转动用于传送板坯；所述框架与连铸辊3之间设有支撑装置。所述连铸辊3为整体式，采用一体成形工艺制成。
其中，所述支撑装置包括支撑座91、支撑辊轴92以及滚柱轴承94，所述支撑辊轴92两端安装于支撑座91上，所述支撑座91安装于框架上，所述滚柱轴承94安装于支撑辊轴92上并与连铸辊3的外表面相接触。所述支撑辊轴92上位于滚柱轴承94的两侧设有轴承挡圈93。所述滚柱轴承94的外径为连铸辊3外径的0.2～0.8倍。
滚柱轴承的外表面与连铸辊3的辊面接触并随连铸辊3转动以此支撑连铸辊3受力时的载荷及变形，本发明采用高承载力的四列滚柱轴承。将载荷通过支撑座91传递到高刚度的扇形段框架上，支撑装置以此方式对连铸辊起到外部动态连续支撑的作用。根据连铸板坯宽度需要，在连铸机扇形段上部框架与 上连铸辊之间及连铸机扇形段下部框架与下连铸辊之间可分别安装1～4组支撑装置。
上述方案中，由于连铸机扇形段上支撑装置设置在连铸辊的外部，因而使连铸辊结构大大简化；连铸辊可制成结构简单的大辊径整体式辊，使其强度和刚度显著增大；连铸辊及支撑装置拆装更换操作简单、维修工作量大大减少、备品备件消耗量显著减少；同时，该连铸机更适合于实施凝固末端大压下时的高载荷状态。
以上所述是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明所述原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (7)

  1. 一种板坯连铸机扇形段连铸辊的支撑结构，其中，所述扇形段包括框架及设于框架上的连铸辊、传动装置，压下装置，所述连铸辊通过连铸辊轴承座安装于框架上，所述压下装置驱动连铸辊对板坯进行压下变形，所述传动装置驱动连铸辊转动用于传送板坯；其特征在于，所述框架与连铸辊之间设有支撑装置。
  2. 根据权利要求1所述的板坯连铸机扇形段连铸辊的支撑结构，其特征在于，所述支撑装置包括支撑座、支撑辊轴以及支撑辊，所述支撑辊轴两端安装于支撑座上，所述支撑座安装于框架上，所述支撑辊套设于支撑辊轴上并与连铸辊的外表面相接触。
  3. 根据权利要求2所述的板坯连铸机扇形段连铸辊的支撑结构，其特征在于，所述支撑装置包括支撑座、支撑辊轴以及滚柱轴承，所述支撑辊轴两端安装于支撑座上，所述支撑座安装于框架上，所述滚柱轴承安装于支撑辊轴上并与连铸辊的外表面相接触。
  4. 根据权利要求3所述的板坯连铸机扇形段连铸辊的支撑结构，其特征在于，所述支撑辊轴上位于滚柱轴承的两侧设有轴承挡圈。
  5. 根据权利要求4所述的板坯连铸机扇形段连铸辊的支撑结构，其特征在于，所述滚柱轴承的外径为连铸辊外径的0.2～0.8倍。
  6. 根据权利要求1至5任一项所述的板坯连铸机扇形段连铸辊的支撑结构，其特征在于，所述支撑装置设置于两个连铸辊轴承座之间，设置有1～4组。
  7. 根据权利要求1所述的板坯连铸机扇形段连铸辊的支撑结构，其特征在于，所述连铸辊为整体式，采用一体成形工艺制成。
PCT/CN2014/087284 2014-07-14 2014-09-24 一种板坯连铸机扇形段连铸辊的支撑结构 WO2016008216A1 (zh)

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CN108788041B (zh) * 2018-07-03 2020-01-03 东北大学 一种连铸凝固末端重压下用扇形段辊列结构及使用方法
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CN110227806B (zh) * 2019-05-27 2024-05-14 北京首钢国际工程技术有限公司 一种铸轧式连铸机凝固末端大压下装置

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