Multi-strand slab continuous casting fan-shaped section transmission device

Abstract

The utility model discloses a multi-strand slab continuous casting fan-shaped section transmission device which comprises a plurality of sets of transmission devices arranged side by side, each transmission device comprises a rack, an upper transmission roller set and a lower transmission roller set are arranged on the rack at intervals, and the upper transmission roller set is in transmission connection with an upper transmission roller pressing device arranged on the rack; the upper transmission device is connected with the rack in an up-and-down sliding mode through an upper guiding device, and the upper transmission device is in transmission connection with the upper transmission roller set; and the lower transmission device is arranged on the rack and is in transmission connection with the lower transmission roller group. The utility model provides a multi-stream slab continuous casting fan-shaped section transmission device which aims at solving the problems that after the number of streams of an existing slab continuous casting machine exceeds two streams, transmission arrangement of a middle stream fan-shaped section is inconvenient, overhauling is inconvenient, or the needed stream distance is large, the occupied area is large, and investment is too high.

Description

Technical Field

[0001] The utility model relates to the field of continuous casting equipment. More specifically, the utility model relates to a multi-strand slab continuous casting segment drive device. Background Art

[0002] In recent years, with the adjustment of the national steel industry structure and the improvement of steelmaking technology, the tapping volume of a single steelmaking furnace has gradually increased, and the volume of the ladle equipped has also become larger and larger, putting forward higher requirements for the production capacity of continuous casting. In addition to measures such as increasing the casting speed, increasing the number of strands of the casting machine can obviously directly increase the production capacity of the continuous casting machine. However, when the number of strands of slab continuous casting exceeds 2, the layout scheme of the segment area in the middle strand is particularly important.

[0003] In conventional slab continuous casting, the segments mostly adopt the 5-roll group and 7-roll group structures, and the 3rd roll (5-roll group structure) and the 4th roll (7-roll group structure) are driving rolls. Affected by factors such as the plant space, strand spacing, and drive layout form, usually the number of strands of a single casting machine is controlled to not exceed 2, the drives are arranged on both sides of the casting strand, and a universal coupling is used to connect the driving roll to the driving device; however, when the number of strands exceeds 2, the drives of the segments in several middle strands are restricted by space and cannot adopt the above method. At this time, the layout mostly adopts an appropriate increase in the strand spacing, and the drives are placed beside the frames of the middle strands, as specifically shown in the appendix Figure 1 As shown. Although this layout scheme can solve the drive layout problem of the middle strands, it requires a large strand spacing, the casting machine occupies a large area, and the construction cost of the casting machine is greatly increased; the drives occupy the equipment maintenance space between the strands, resulting in inconvenient equipment maintenance in the later stage. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a multi-strand slab continuous casting segment drive device to solve the problems that after the number of strands of the current slab continuous casting machine exceeds 2, the drive layout of the middle-strand segments is inconvenient, the maintenance is inconvenient, or the required strand spacing is large, the occupied area is large, and the investment is too high.

[0005] The technical solution of the utility model to solve the above technical problems is as follows: A multi-strand slab continuous casting segment drive device includes multiple groups of drive equipment arranged in parallel, and the drive equipment includes:

[0006] A frame, on which an upper drive roll group and a lower drive roll group are arranged at intervals, and the upper drive roll group is in transmission connection with an upper drive roll pressing device arranged on the frame;

[0007] An upper drive device, which is connected to the frame through an upper guiding device so as to be slidable up and down, and the upper drive device is in transmission connection with the upper drive roll group;

[0008] A lower drive device, which is arranged on the frame and is in transmission connection with the lower drive roll group.

[0009] Further, in the multi-strand slab continuous casting segment drive device, the frame includes:

[0010] The upper frame, on which the upper drive device and the upper drive roll pressing device are both arranged, and the upper drive roll group is arranged below the upper frame;

[0011] The lower frame, on which the lower drive device and the lower drive roll group are both arranged.

[0012] Further, in the multi-strand slab continuous casting segment drive device, it further includes:

[0013] The lower guiding device, through which the lower drive device is slidably connected to the upper frame in the vertical direction.

[0014] Further, in the multi-strand slab continuous casting segment drive device, the upper drive roll pressing device includes:

[0015] The connecting seat, whose lower end is connected to the upper drive roll group;

[0016] The pressing cylinder, which is arranged on the upper frame through the cylinder support, and the telescopic shaft of the pressing cylinder is arranged vertically downward and connected to the connecting seat.

[0017] Further, in the multi-strand slab continuous casting segment drive device, both the upper drive device and the lower drive device are arranged at the transmission outlet of the drive device.

[0018] The beneficial effects of the present utility model are as follows:

[0019] 1. The multi-strand slab continuous casting segment drive device of the present utility model has a compact structure and small occupied space. When it is used in a multi-strand slab continuous caster, the required casting strand spacing is small;

[0020] 2. The multi-strand slab continuous casting segment drive device of the present utility model is convenient for installation and maintenance. When the drive device needs off-line maintenance, there is no need to remove the upper drive device and the lower drive device, and it can be lifted out together with the frame, saving maintenance time;

[0021] Other advantages, objectives and features of the present utility model will be partially reflected by the following description, and partially will also be understood by those skilled in the art through the research and practice of the present utility model. Description of the Drawings

[0022] Figure 1 It is the layout mode of the existing multi-strand slab continuous casting segment drive described in the background technology of the present utility model;

[0023] Figure 2It is the top view of the multi-strand slab continuous casting segment drive device of the present utility model;

[0024] Figure 3 It is the schematic side structure view of the drive equipment of the present utility model;

[0025] Figure 4 It is the schematic view of the other side structure of the drive equipment of the present utility model;

[0026] Figure 5 It is the top view of the drive equipment of the present utility model;

[0027] Figure 6 It is the side view of the drive equipment of the present utility model. Detailed implementation mode

[0028] The following further describes the present utility model in detail with reference to the drawings, so that those skilled in the art can implement it according to the description in the specification.

[0029] It should be noted that in the description of the present utility model, the orientation or positional relationship indicated by the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0030] Figures 2 - 6 A multi-strand slab continuous casting segment drive device provided by an embodiment of the present utility model includes a plurality of groups of drive equipment 1 arranged in parallel. The drive equipment 1 includes:

[0031] A frame, on which an upper drive roll group 2 and a lower drive roll group 3 are arranged at intervals. The upper drive roll group 2 is in transmission connection with an upper drive roll pressing device arranged on the frame;

[0032] An upper drive device 4, which is connected to the frame through an upper guiding device 5 so as to be slidable up and down. The upper drive device 4 is in transmission connection with the upper drive roll group 2;

[0033] A lower drive device 6, which is arranged on the frame and is in transmission connection with the lower drive roll group 3.

[0034] In this embodiment, the upper driving device 4 and the lower driving device 6 adopt the direct connection mode of a conventional motor and a speed reducer, and the speed reducer adopts a vertical suspended gear speed reducer. The upper driving roll group 2 and the lower driving roll group 3 can both adopt existing slab driving roller tables, and multiple driving rolls are mutually drivingly connected, and one of the driving rolls serves as a power input roll and is respectively drivingly connected to the speed reducers of the upper driving device 4 and the lower driving device 6. The upper driving roll pressing device drives the upper driving roll group 2 to press down or lift. During this process, in order to ensure that the upper guiding device 5 also rises and falls accordingly, the upper driving device 4 is slidably connected to the frame through the upper guiding device 5, and the upper guiding device 5 plays a role of fixing and guiding the upper driving device 4 to ensure the connection stability between the upper driving device 4 and it during the up and down movement of the upper driving roll. The transmission equipment 1 is structurally compact and occupies a small space. When it is used in a multi-strand slab continuous caster, multiple groups of transmission equipment 1 are arranged in parallel, and the distance between two adjacent groups of transmission equipment 1 is significantly reduced, so that there is no need to increase the strand spacing.

[0035] Preferably, as another embodiment of the present invention, the frame includes:

[0036] An upper frame 7, the upper driving device 4 and the upper driving roll pressing device are both arranged on the upper frame 7, and the upper driving roll group 2 is arranged below the upper frame 7;

[0037] A lower frame 8, the lower driving device 6 and the lower driving roll group 3 are both arranged on the lower frame 8.

[0038] In this embodiment, the frame is divided into an upper frame 7 and a lower frame 8, which is convenient for lifting out the upper driving roll group 2, the upper driving device 4 and the upper driving roll pressing device together with the upper frame 7 during off-line maintenance, saving maintenance time and eliminating the need to disassemble the upper driving device 4, thus saving maintenance time.

[0039] Preferably, as another embodiment of the present invention, it further includes:

[0040] A lower guiding device 9, the lower driving device 6 is slidably connected to the upper frame 7 through the lower guiding device 9.

[0041] In this embodiment, a lower guiding device 9 is arranged between the lower driving device 6 and the upper frame 7 to limit the moving track of the up and down movement of the upper frame 7 through the lower guiding device 9 and ensure the space for the upper frame 7 to lift and press down. Specifically, the lower guiding device 9 includes: at least two limiting plates, vertically provided with strip-shaped chutes on the limiting plates, and limiting rods are slidably arranged up and down in the strip-shaped chutes, and the limiting rods are all connected to the lower driving device 6. The limiting rods slide inside the strip-shaped chutes to limit the range for lifting the upper frame 7 during maintenance. The structure of the upper guiding device 5 can adopt the same structure as that of the lower guiding device 9.

[0042] Preferably, as another embodiment of the present invention, the upper driving roller pressing device includes:

[0043] A connecting seat 10, the lower end of which is connected to the upper driving roller set 2;

[0044] A pressing cylinder 11, which is arranged on the upper frame 7 through a cylinder support 12, and the telescopic shaft of the pressing cylinder 11 is arranged vertically downward and connected to the connecting seat 10.

[0045] In this embodiment, the telescopic movement of the telescopic shaft of the pressing cylinder 11 drives the connecting seat 10 and the upper driving roller set 2 at its lower end to move up and down.

[0046] Preferably, as another embodiment of the present invention, both the upper driving device 4 and the lower driving device 6 are arranged at the conveying outlet of the driving device.

[0047] In this embodiment, the driving equipment 1 is arranged at the outlet of the segment. On both the upper driving roller set 2 and the lower driving roller set 3, the driving roller closest to the outlet of the segment is used as the power input roller, and is respectively connected to the upper driving device 4 and the lower driving device 6, which is convenient for later maintenance and replacement.

[0048] Although the embodiments of the present invention have been disclosed as above, it is not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the embodiments shown and described here.

Claims

1. A multi-strand slab continuous casting sector transmission device, characterized in that: The invention comprises a plurality of transmission devices (1) arranged in parallel, wherein the transmission devices (1) comprise: A frame, on which an upper transmission roller group (2) and a lower transmission roller group (3) are arranged at intervals, and the upper transmission roller group (2) is transmission-connected to an upper transmission roller pressing device arranged on the frame; An upper transmission device (4) is connected to the frame via an upper guide device (5) so as to be slidable up and down, and the upper transmission device (4) is transmission-connected to the upper transmission roller group (2); A lower transmission device (6) is arranged on the frame and is transmission-connected to the lower transmission roller group (3).

2. A multi-strand slab continuous casting sector transmission device as claimed in claim 1, characterized in that: The frame comprises: An upper frame (7), the upper transmission device (4) and the upper transmission roller pressing device are both arranged on the upper frame (7), and the upper transmission roller group (2) is arranged below the upper frame (7); A lower frame (8), the lower transmission device (6) and the lower transmission roller group (3) are both arranged on the lower frame (8).

3. A multi-strand slab continuous casting sector transmission device as claimed in claim 2, characterized in that: Also includes: A lower guide device (9), wherein the lower transmission device (6) is connected to the upper frame (7) via the lower guide device (9) so as to be slidable up and down.

4. A multi-strand slab continuous casting sector transmission device as claimed in claim 3, characterized in that: The upper transmission roller pressing device comprises: A connecting seat (10), the lower end of which is connected to the upper transmission roller group (2); A pressing cylinder (11) is arranged on the upper frame (7) via a cylinder support (12); a telescopic shaft of the pressing cylinder (11) is arranged vertically downward and connected to the connecting seat (10).

5. A multi-strand slab continuous casting sector transmission device as claimed in claim 1, characterized in that: The upper transmission device (4) and the lower transmission device (6) are both arranged at the transmission outlet of the transmission device.

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