Phosphorus removal rolling assembly

Abstract

The utility model provides a dephosphorization rolling assembly which comprises a dephosphorization guide and guard device and a working roller which are detachably connected, the working roller is provided with a first end and a second end which are oppositely arranged in the width direction, the first end comprises a second friction part and a working roller protection plate which are detachably connected, and the second end comprises a roller; the dephosphorization guide and guard device comprises a first friction part, the first friction part is clamped to the second friction part from the bottom of the first end, and the dephosphorization guide and guard device and the working roller are connected end to end through the first friction part and the second friction part in the width direction of the working roller. By means of the structural arrangement, the position precision of the dephosphorization guide and guard device is further improved remarkably, it is guaranteed that the functions of the dephosphorization guide and guard device are achieved, the working conditions that slabs are clamped into gaps and the like are avoided, the effect is remarkable, and the dephosphorization guide and guard device is worthy of popularization.

Description

Technical Field

[0001] The utility model belongs to the field of rolled strip steel production, and in particular relates to a dephosphorization rolling component. Background Art

[0002] The descaling guide device is an important part of the rolling mill. It has two main functions: one is to guide the slab into the rolls and protect the rolls from the impact of the rolled workpiece; the other is to remove the iron oxide scale on the slab; in addition, the roll cooling, dust removal, water curtain interception and other devices are integrated on the guide device to save space.

[0003] Therefore, in order for the descaling guide to achieve the above functions, it is necessary to ensure good positioning accuracy.

[0004] However, if Figure 1 As shown in the figure, in actual production, the descaling guide device will reduce its position accuracy due to strong earthquakes, failure to replenish dry oil in time, water vapor, high temperature and other factors, resulting in a large gap between the descaling guide device and the working roll guard plate. When the gap between the descaling guide device and the working roll guard plate is too large, and the slab warps seriously, there will be an accident where the slab is stuck in the gap, resulting in scrap steel in the roughing mill and the risk of equipment damage and shutdown.

[0005] There is no device or technology in common technology that can effectively avoid the above working conditions.

[0006] Based on this, it is necessary to provide a dephosphorization rolling assembly and a locking structure thereof to solve the technical problem of reduced position accuracy of the dephosphorization guide device in the above-mentioned conventional technology. Utility Model Content

[0007] In order to solve the technical problem of reduced position accuracy of the dephosphorization guide device in the above-mentioned common technology, the utility model provides a dephosphorization rolling assembly, including a detachably connected dephosphorization guide device and a working roll:

[0008] The working roll has a first end and a second end which are arranged opposite to each other in the width direction, the first end includes a detachably connected second friction portion and a working roll guard plate, and the second end includes a rolling roll;

[0009] The dephosphorization guide device includes a first friction portion, which is clamped to the second friction portion from the bottom of the first end. Along the width direction of the working roller, the dephosphorization guide device and the working roller are connected end to end through the first friction portion and the second friction portion respectively.

[0010] Furthermore, the phosphorus removal guide device also includes a phosphorus removal guide guard plate, the first friction portion is embedded in a corner of the phosphorus removal guide guard plate close to the second friction portion, and the first friction portion and the phosphorus removal guide guard plate are provided with first screw holes with relative hole positions in a direction perpendicular to the ground, so that the first friction portion and the phosphorus removal guide guard plate can be threadedly connected by screws.

[0011] Furthermore, the second friction portion and the working roll guard plate are provided with second screw holes with opposite hole positions in a direction perpendicular to the ground, so that the second friction portion and the working roll guard plate can be threadedly connected by screws.

[0012] Furthermore, the first friction part includes an upper rack, the second friction part includes a lower rack, and the first friction part and the second friction part are meshed with each other by the upper rack and the lower rack.

[0013] Furthermore, the rack directions of the upper rack and the lower rack are parallel to the length direction of the working roll.

[0014] Furthermore, the first screw holes are evenly arranged along the center axis of the upper rack in the length direction.

[0015] Furthermore, the second screw holes are evenly arranged along the center axis of the lower rack in the length direction.

[0016] Furthermore, the upper portion of one end of the upper rack close to the roller is provided with a chamfer.

[0017] Furthermore, the length of the upper rack is 1000-2350 mm, the width is 20-80 mm, and the thickness is 43.5-60 mm;

[0018] The lower rack has a length of 1000-2350 mm, a width of 20-80 mm, and a thickness of 20-43.5 mm.

[0019] Compared with the prior art, the utility model has at least the following advantages:

[0020] The utility model provides a dephosphorization guide device and a working roller. On the one hand, the utility model adopts a clamping splicing method to effectively increase the contact area between the dephosphorization guide device and the working roller. The increase in the contact area means an increase in friction, thereby improving the limiting effect of the dephosphorization guide device to ensure the optimization of the position accuracy of the dephosphorization guide device.

[0021] On the other hand, Figure 1As shown, 2 is the first friction part, 3 is the second friction part, and in coordination with the aforementioned snap-fitting structure, the arrangement of the first friction part and the second friction part further significantly improves the position accuracy of the dephosphorization guide device, thereby ensuring the function of the dephosphorization guide device and avoiding the occurrence of problem conditions such as the slab being stuck in the gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 This is a real-life picture of the increase in the gap between the dephosphorization guide device and the working roll guard plate in the commonly used technology.

[0024] Figure 2 The structure diagram of the dephosphorization guide device and the working roll in one embodiment of the utility model is shown in FIG. 1 is a dephosphorization guide guard plate, 2 is an upper rack, 3 is a lower rack, 4 is a working roll guard plate, and 7 is a roll.

[0025] Figure 3 5 is a structural diagram of an upper rack in an embodiment of the present utility model, and 5 is a first screw hole.

[0026] Figure 4 6 is a structural diagram of the lower rack in an embodiment of the utility model, and 6 is a second screw hole. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Furthermore, the technical solutions between the various implementation modes of the present invention may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in the field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] When numerical ranges are given in the embodiments, it should be understood that unless otherwise specified in the present invention, both endpoints of each numerical range and any value between the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used in the present invention are in accordance with the prior art mastery of those skilled in the art and the description of the present invention, and any prior art methods, equipment and materials similar or equivalent to the methods, equipment and materials in the embodiments of the present invention can also be used to implement the present invention.

[0030] The utility model provides a dephosphorization rolling assembly, including a detachably connected dephosphorization guide device and a working roll: wherein the working roll has a first end and a second end relatively arranged in the width direction, the first end includes a detachably connected second friction portion and a working roll guard plate 4, and the second end includes a rolling roll 7.

[0031] The dephosphorization guide device has two main functions: one is to guide the slab into the rolling roller 7 and protect the rolling roller 7 from the impact of the rolled workpiece; the other is to remove the iron oxide scale on the slab; in addition, the cooling, dust removal, water curtain interception and other devices of the rolling roller 7 are integrated on the guide device to save space.

[0032] There is a gap between the dephosphorization guide device and the working roll guard plate 4, and the stability of the gap size and the maintenance of position accuracy are the basis for achieving the effect of the dephosphorization guide device.

[0033] The working roll includes a working roll guard plate 4 and a rolling roll 7. The working roll guard plate 4 matches the shape of the rolling roll 7 and is usually arranged in abutment with the rolling roll 7, mainly used to protect the surface of the rolling roll 7 to prevent metal or debris from scratching, wearing or adhering to it, thereby affecting the rolling quality and the normal operation of the rolling mill.

[0034] As a main component of the rolling mill, during the rolling process, the roller 7 is in direct contact with the metal, and the rolling force is transmitted through friction, so that the metal undergoes continuous plastic deformation. The shape of the roller 7 may vary according to different rolling equipment and process requirements.

[0035] Exemplarily, in the present invention, the roller 7 may be cylindrical in shape.

[0036] The dephosphorization guide device includes a first friction portion, which is clamped from the bottom of the first end to the second friction portion. Along the width direction of the working roller, the dephosphorization guide device and the working roller are connected end to end through the first friction portion and the second friction portion respectively.

[0037] The phosphorus removal guide device also includes a phosphorus removal guide guard plate 1, the first friction portion is embedded in a corner of the phosphorus removal guide guard plate 1 close to the second friction portion, and the first friction portion and the phosphorus removal guide guard plate 1 are provided with first screw holes 5 with relative hole positions in a direction perpendicular to the ground, so that the first friction portion and the phosphorus removal guide guard plate 1 can be threadedly connected by screws.

[0038] The second friction portion and the working roll guard plate 4 are provided with second screw holes 6 with opposite hole positions along a direction perpendicular to the ground, so that the second friction portion and the working roll guard plate 4 can be threadedly connected by screws.

[0039] For example, Figure 2 As shown, the first friction part includes an upper rack 2, and the second friction part includes a lower rack 3. The first friction part and the second friction part are meshed with each other by the upper rack 2 and the lower rack 3.

[0040] like Figure 3 , Figure 4 As shown, in some embodiments, the rack directions of the upper rack 2 and the lower rack 3 are parallel to the length direction of the working roll.

[0041] like Figure 3 , Figure 4 As shown, the first screw holes 5 can be evenly arranged along the middle axis of the length direction of the upper tooth. The second screw holes 6 can be evenly arranged along the middle axis of the length direction of the lower rack 3.

[0042] Exemplarily, the number of the first screw holes 5 and the second screw holes 6 may be 11, and the diameter may be 16 mm.

[0043] like Figure 2 As shown, the upper portion of the upper rack 2 close to the roller 7 is chamfered.

[0044] Exemplarily, the chamfer may have a specification of 5 mm to 15 mm.

[0045] The upper rack 2 may have a length of 1000 to 2350 mm, a width of 20 to 80 mm, and a thickness of 43.5 to 60 mm.

[0046] In one embodiment of the utility model, the upper rack 2 is a rack with a length of 2350mm, a width of 80mm, and a thickness of 43.5mm, with a chamfer of 10mm on the edge, and 11 countersunk holes evenly distributed on the center line of the rack for positioning and fixing on the descaling guide guard plate. Therefore, the thickness of the descaling guide guard plate is reduced by 38.25mm, and 11 additional φ16mm threaded holes are required to install and embed the upper rack 2.

[0047] The lower rack 3 may have a length of 1000 to 2350 mm, a width of 20 to 80 mm, and a thickness of 20 to 43.5 mm.

[0048] In one embodiment of the present invention, the lower rack 3 of the working roll is a rack with a length of 2350 mm, a width of 80 mm, and a thickness of 43.5 mm, and 11 countersunk holes are evenly distributed on the center line of the rack for positioning and fixing on the working roll guard plate 4. Therefore, the thickness of the working roll guard plate 4 is reduced by 38.25 mm, and 11 φ16 mm threaded holes are added to install the second friction part, that is, the lower rack 3.

[0049] In order to facilitate the technical personnel in the field to further understand the present invention, the following examples are given:

[0050] like Figure 2 As shown, during use, the first friction part, i.e., the upper rack 2, can be screwed into the first screw hole 5 with a nut to realize a detachable connection between the upper rack 2 and the dephosphorization guide guard plate 1; similarly, the second friction part, i.e., the lower rack 3, can be screwed into the second screw hole 6 of the working roller guard plate 4 with a nut. Among them, the diameter of the nut is 16 mm, and the number of the first screw hole 5 and the second screw hole 6 are both 12. After the dephosphorization guide device and the working roller are installed, the dephosphorization guide device is clamped to the working roller from bottom to top, and the first friction part and the second friction part, i.e., the upper rack 2 and the lower rack 3 are meshed and tightly abutted, which ensures the stability of the gap between the dephosphorization guide device and the working roller, and effectively avoids the generation of scrap steel and the risk of equipment damage and shutdown due to excessive gap.

[0051] The above technical solutions of the present invention are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A dephosphorization rolling assembly, characterized in that: Including detachable dephosphorization guide and working roller: The working roll has a first end and a second end which are arranged opposite to each other in the width direction, the first end includes a detachably connected second friction portion and a working roll guard plate, and the second end includes a rolling roll; The dephosphorization guide device includes a first friction portion, which is clamped to the second friction portion from the bottom of the first end. Along the width direction of the working roller, the dephosphorization guide device and the working roller are connected end to end through the first friction portion and the second friction portion respectively.

2. The dephosphorization rolling assembly according to claim 1, characterized in that: The phosphorus removal guide device also includes a phosphorus removal guide guard plate, the first friction portion is embedded in a corner of the phosphorus removal guide guard plate close to the second friction portion, and the first friction portion and the phosphorus removal guide guard plate are provided with first screw holes with relative hole positions in a direction perpendicular to the ground, so that the first friction portion and the phosphorus removal guide guard plate can be threadedly connected by screws.

3. The dephosphorization rolling assembly according to claim 2, characterized in that: The second friction portion and the working roll guard plate are provided with second screw holes with opposite hole positions along a direction perpendicular to the ground, so that the second friction portion and the working roll guard plate can be threadedly connected by screws.

4. The dephosphorization rolling assembly according to claim 3, characterized in that: The first friction part includes an upper rack, the second friction part includes a lower rack, and the first friction part and the second friction part are meshed with each other by the upper rack and the lower rack.

5. The dephosphorization rolling assembly according to claim 4, characterized in that: The rack directions of the upper rack and the lower rack are parallel to the length direction of the working roll.

6. The dephosphorization rolling assembly according to claim 5, characterized in that: The first screw holes are evenly arranged along the central axis of the upper rack in the length direction.

7. The dephosphorization rolling assembly according to claim 5, characterized in that: The second screw holes are evenly arranged along the central axis of the lower rack in the length direction.

8. The dephosphorization rolling assembly according to claim 4, characterized in that: The upper portion of the upper rack near one end of the roller is provided with a chamfer.

9. The dephosphorization rolling assembly according to claim 4, characterized in that: The length of the upper rack is 1000-2350 mm, the width is 20-80 mm, and the thickness is 43.5-60 mm; The lower rack has a length of 1000-2350 mm, a width of 20-80 mm, and a thickness of 20-43.5 mm.

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