Device applied to flying shear guide groove and used for reducing steel tail lineation

Abstract

The utility model discloses a device applied to a flying shear guide groove and used for reducing lineation at the tail of steel, and relates to the technical field of metallurgical steel rolling. Comprising bases, riding wheels and a connecting and positioning device, the bases comprise the first base and the second base, the first base and the second base are both arranged at the bottom of an inlet guide groove cavity, and the first base and the second base are fixedly connected to two side plates of the inlet guide groove cavity respectively; the riding wheel is arranged between the first base and the second base, the riding wheel is connected to the first base and the second base in a rolling mode through a connecting and positioning device, the connected riding wheel is located between the first ground roller and the second ground roller, the riding wheel can bear steel, and the height of the surface, making contact with the steel, of the riding wheel is lower than that of the surface, making contact with the steel, of the first ground roller. According to the utility model, the machining and sawing length of the tail part of the steel is effectively reduced, the yield of rolled steel is improved, and the burden that the steel impacts the arc-shaped plate of the outlet guide groove is also relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical steel rolling, in particular to a device applied to a flying shear guide groove to reduce the marking of the tail of a steel product. Background Art

[0002] At present, in the process of production and rolling, large and medium-sized domestic steel mills usually use flying shears to cut the heads and tails of rolled steel to facilitate the subsequent sawing processing and ensure the quality of finished products. However, due to the large span between the ground rollers in the entrance guide groove and the exit guide groove, the tail end of the steel is prone to dragging and marking at the entrance guide groove, resulting in an increase in the sawing length of the subsequent processing, which affects the reduction of the steel yield. At the same time, the head of the steel passes through the flying shear and will fall parabolically due to its own weight in the middle of the process, hitting the curved plate of the exit guide groove, posing a major safety hazard to the equipment. Utility Model Content

[0003] The utility model aims to provide a device applied to a flying shear guide groove for reducing the marking of the tail of a steel material, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device applied to a flying shear guide groove for reducing the marking of the tail of a steel material, the flying shear guide groove comprises an inlet guide groove, an outlet guide groove and a flying shear arranged between the inlet guide groove and the outlet guide groove, the inlet guide groove comprises an inlet guide groove cavity and a first ground roller rollingly connected to the bottom of the inlet guide groove cavity, the outlet guide groove comprises an outlet guide groove cavity and a second ground roller rollingly connected to the bottom of the outlet guide groove cavity, the first ground roller and the second ground roller can receive the steel material and the steel material slides in the flying shear guide groove, the device applied to the flying shear guide groove for reducing the marking of the tail of the steel material comprises a base, a supporting wheel and A connecting and positioning device, wherein the base includes a first base and a second base, the first base and the second base are both arranged at the bottom of the inlet guide groove cavity, and the first base and the second base are respectively fixed to the two side plates of the inlet guide groove cavity; a supporting wheel is arranged between the first base and the second base, and the supporting wheel is rollingly connected to the first base and the second base through the connecting and positioning device, and the supporting wheel after connection is between the first ground roller and the second ground roller, the supporting wheel can bear steel, and the surface height of the supporting wheel in contact with the steel is lower than the surface height of the first ground roller in contact with the steel.

[0005] Based on the above technical features, the utility model installs a supporting wheel between the first base and the second base. Along the conveying direction of the steel in the flying shear guide groove, the installed supporting wheel will be between the first ground roller and the second ground roller. The supporting wheel can lift the steel, reduce the parabolic falling amplitude of the steel head due to the influence of its own weight, and effectively reduce the burden of the steel hitting the arc plate of the outlet guide groove. At the same time, the surface height of the supporting wheel in contact with the steel is lower than the surface height of the first ground roller in contact with the steel. The supporting wheel can receive the tail of the steel that has separated from the first ground roller, effectively solving the problem of marking caused by the tail of the steel that has separated from the first ground roller dragging in the inlet guide groove cavity due to the large span of the first ground roller and the second ground roller, effectively reducing the length of the steel tail processing and sawing, and improving the yield rate of rolled steel.

[0006] Preferably in the present technical solution, the connection and positioning device comprises a pin shaft and a locking device, wherein the pin shaft passes through the first base, the supporting wheel and the second base in sequence along its axial direction, and the pin shaft is locked on the base by the locking device; more preferably, the pin shaft is coaxially arranged with the supporting wheel.

[0007] Based on the above technical features, the supporting wheel is positioned and installed on the base through the built-in pin shaft, and the positioned and installed pin shaft is then locked on the base through the locking device, so that the supporting wheel can finally be stably rolled and connected to the base. At the same time, when the supporting wheel needs to be replaced, the supporting wheel can be quickly replaced by simply pulling out the pin shaft.

[0008] Preferably in the present technical solution, the locking device comprises a clamping plate and a bolt, wherein the clamping plate is clamped to one end of the pin shaft, and the clamping plate is fixed to the first base or the second base by a plurality of bolts.

[0009] Preferably in the present technical solution, the two ends of the support wheel can respectively cooperate with the first base and the second base to form a accommodating cavity, and the connecting and positioning device also includes a bearing and a limit ring, wherein the bearing is placed in the accommodating cavity, and the bearing is sleeved on the pin shaft, and the outer ring surface of the bearing is against the support wheel; the limit ring is arranged between the base and the bearing, and the limit ring is also sleeved on the pin shaft, and at the same time, the two ends of the limit ring are respectively against the base and the bearing.

[0010] Based on the above technical features, the bearing can not only support the supporting wheel, but also effectively reduce the rolling resistance of the supporting wheel when rolling. The limiting ring is set between the base and the bearing to limit and fix the bearing to prevent the bearing from moving left and right and hitting the base.

[0011] Preferably in the present technical solution, the bearing is a graphite high-temperature bearing.

[0012] Based on the above technical features, the graphite high-temperature bearing can not only withstand high temperatures, but also effectively reduce the friction coefficient between the bearing and the supporting roller. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the flying shear guide groove;

[0014] Figure 2 It is a schematic structural diagram of the device applied to the flying shear guide groove for reducing the scribing at the tail of the steel in the embodiment of the present utility model;

[0015] Figure 3 In the embodiment of the present utility model Figure 2 is a sectional view taken along the line A-A.

[0016] In the figure: 1, inlet guide groove; 11, inlet guide groove cavity; 12, first ground roll; 2, outlet guide groove; 21, outlet guide groove cavity; 22, second ground roll; 3, flying shear; 4, base; 41, first base; 42, second base; 5, supporting roller; 6, pin shaft; 7, clamping plate; 8, bolt; 9, bearing; 10, limit retaining ring. Detailed Embodiment

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0018] It should be noted that in the description of the present utility model, the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 of the present utility model.

[0019] In addition, it should be understood that, for the convenience of description, the dimensions of the various components shown in the accompanying drawings are not drawn in actual proportional relationship.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined or described in one drawing, it will not be necessary to further discuss and describe it specifically in the description of the subsequent drawings.

[0021] Before understanding the present invention, it should be clear that, along the conveying direction of the steel in the flying shear guide groove, the head of the steel refers to the front end of the steel, and the tail of the steel refers to the other end of the steel at the back; at the same time, it should also be clear that the first ground roller 12 and the second ground roller 22 can support the steel, and the steel can slide in the flying shear guide groove. When the steel slides in the flying shear guide groove, the tail of the steel will detach from the first ground roller and contact with the bottom plate of the first guide groove cavity 11, which makes it easy for the tail of the steel to have a scratching problem.

[0022] like Figure 1 As shown, the flying shear guide groove includes an inlet guide groove 1, an outlet guide groove 2 and a flying shear 3 arranged between the inlet guide groove 1 and the outlet guide groove 2, the inlet guide groove 1 includes an inlet guide groove cavity 11 and a first ground roller 12 rollingly connected to the bottom of the inlet guide groove cavity 11, the outlet of the inlet guide groove 1 is opposite to the interface of the outlet guide groove 2, the outlet guide groove 2 includes an outlet guide groove cavity 21 and a second ground roller 22 rollingly connected to the bottom of the outlet guide groove cavity 21, the first ground roller 12 and the second ground roller 22 can receive steel, and the steel can slide in the flying shear guide groove.

[0023] like Figure 2 and Figure 3 As shown, the utility model provides a technical solution: a device applied to a flying shear guide groove to reduce the marking of the tail of a steel material, which includes a base 4, a supporting wheel 5 and a connecting and positioning device.

[0024] The base 4 includes a first base 41 and a second base 42, both of which are arranged at the bottom of the inlet guide groove cavity 11, and the first base 41 and the second base 42 are respectively fixed to the two side plates of the inlet guide groove cavity 11; preferably, in an embodiment of the utility model, the first base 41 and the second base 42 are arranged opposite to each other, and the first base 41 and the second base 42 are respectively welded below the outlet of the inlet guide groove 1.

[0025] The supporting wheel 5 is arranged between the first base 41 and the second base 42, and the supporting wheel 5 is rollingly connected to the first base 41 and the second base 42 through a connecting and positioning device. After the connection, the supporting wheel 5 is between the first roller 12 and the second roller 22. The supporting wheel 5 can bear the steel, and the surface height of the supporting wheel 5 in contact with the steel is lower than the surface height of the first roller 12 in contact with the steel. Therefore, when the steel is received by the first roller 12 and the second roller 22, the supporting wheel 5 does not contact the steel. Only when the tail of the steel is separated from the first roller 11, the supporting wheel 5 bears the steel. Therefore, the problem of marking caused by the contact between the steel and the bottom plate of the inlet guide groove cavity 11 is effectively eliminated, and the length of the sawing of the tail of the steel is effectively reduced, thereby improving the yield rate of the steel. Preferably, in the embodiment of the utility model, the length of the supporting wheel 5 is slightly smaller than the distance between the first base 41 and the second base 42, and at the same time, the axis of the supporting wheel 5 is parallel to the axis of the first roller 12 and the second roller 22.

[0026] Further, as shown in Figure 1 and Figure 2 , in the embodiment of the present utility model, the connection and positioning device specifically includes a pin shaft 6 and a locking device. Among them, the pin shaft 6 sequentially passes through the first base 41, the supporting roller 5, and the second base 42 along its axial direction. And the pin shaft 6 is locked on the base 4 through the locking device, and the pin shaft 6 is coaxially arranged with the supporting roller 5.

[0027] Still further, as shown in Figure 1 and Figure 2 , the locking device includes a clamping plate 7 and a bolt 8. Among them, the clamping plate 7 is clamped to one end of the pin shaft 6, and the clamping plate 7 is fixedly connected to the first base 41 or the second base 42 through a plurality of bolts 8; preferably, in the embodiment of the present utility model, a clamping plate groove that can be cooperatively connected with the clamping plate 7 is provided at one end of the pin shaft 6, and the grooving direction of the clamping plate groove is perpendicular to the axial direction of the pin shaft 6. Specifically, when the clamping plate 7 is installed into the clamping plate groove, the clamping plate 7 is then fixed to the first base 41 or the second base 42 through a plurality of bolts 8, and finally the pin shaft 6 is locked on the base 4. At the same time, the bolt 8 can be an M12 bolt.

[0028] As shown in Figure 1 and Figure 2 , both ends of the supporting roller 5 can respectively cooperate with the first base 41 and the second base 42 to form a receiving cavity. The connection and positioning device further includes a bearing 9 and a limit retaining ring 10. Among them, the bearing 9 is placed in the receiving cavity and the bearing 9 is sleeved on the pin shaft 6. The outer ring surface of the bearing 9 abuts against the supporting roller 5. The limit retaining ring 10 is arranged between the base 4 and the bearing 9 and the limit retaining ring 10 is also sleeved on the pin shaft 6. At the same time, both ends of the limit retaining ring 10 respectively abut against the base 4 and the bearing 9 to limit and fix the bearing 9 to prevent the bearing 9 from moving left and right and hitting the base 4; preferably, in the embodiment of the present utility model, the bearing 9 is a high-temperature-resistant graphite high-temperature bearing.

[0029] Specifically, when installing, the first base 41 and the second base 42 can be respectively welded and fixed below the outlet of the inlet guide groove 1. Then, the assembled supporting roller 5, bearing 9, and limit retaining ring 10 are placed between the first base 41 and the second base 42, and are positioned by passing through with the pin shaft 6. Finally, the clamping plate 7 is installed and the pin shaft 6 is fixed with an M12 bolt. When the supporting roller 5 needs to be replaced, only the clamping plate 7 needs to be disassembled and the pin shaft 6 is pulled out. Its structure is simple, the installation and replacement are convenient and fast, effectively reducing the span between the first ground roll 12 and the second ground roll 22, providing effective support for both ends of the steel, effectively reducing the impact of the steel on the arc plate of the outlet guide groove 2, and eliminating the problem that the tail of the steel contacts the inlet guide groove cavity 11 and generates scribing.

[0030] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A device applied to a flying shear guide groove for reducing the marking of the tail of a steel product, the flying shear guide groove comprising an inlet guide groove (1), an outlet guide groove (2) and a flying shear (3) arranged between the inlet guide groove (1) and the outlet guide groove (2), the inlet guide groove (1) comprising an inlet guide groove cavity (11) and a first ground roller (12) rollingly connected to the bottom of the inlet guide groove cavity (11), the outlet guide groove (2) comprising an outlet guide groove cavity (21) and a second ground roller (22) rollingly connected to the bottom of the outlet guide groove cavity (21), the first ground roller (12) and the second ground roller (22) can receive steel products, and the steel products slide in the flying shear guide groove, characterized in that: A device applied to a flying shear guide groove for reducing the marking of the tail of a steel material comprises a base (4), a supporting wheel (5) and a connecting and positioning device, wherein: The base (4) comprises a first base (41) and a second base (42), wherein the first base (41) and the second base (42) are both arranged at the bottom of the inlet guide groove cavity (11), and the first base (41) and the second base (42) are respectively fixed to two side plates of the inlet guide groove cavity (11); The supporting wheel (5) is arranged between the first base (41) and the second base (42), and the supporting wheel (5) is rollingly connected to the first base (41) and the second base (42) through the connecting and positioning device. After the connection, the supporting wheel (5) is located between the first ground roller (12) and the second ground roller (22). The supporting wheel (5) can bear steel, and the surface height of the supporting wheel (5) in contact with the steel is lower than the surface height of the first ground roller (12) in contact with the steel.

2. The device for reducing the marking of the tail of steel applied to the flying shear guide groove according to claim 1 is characterized in that: The connection and positioning device comprises a pin (6) and a locking device, wherein: The pin shaft (6) passes through the first base (41), the supporting wheel (5) and the second base (42) in sequence along its axial direction, and the pin shaft (6) is locked on the base (4) by the locking device.

3. The device for reducing the tail marking of steel material applied to the flying shear guide groove according to claim 2 is characterized in that: The pin shaft (6) is coaxially arranged with the supporting wheel (5).

4. The device for reducing the marking of the tail of steel applied to the flying shear guide groove according to claim 2 is characterized in that: The locking device comprises a clamping plate (7) and a bolt (8), wherein: The clamping plate (7) is clamped to one end of the pin shaft (6), and the clamping plate (7) is fixed to the first base (41) or the second base (42) via a plurality of bolts (8).

5. The device for reducing the marking of the tail of steel applied to the flying shear guide groove according to claim 2 is characterized in that: The two ends of the supporting wheel (5) can respectively cooperate with the first base (41) and the second base (42) to form a receiving cavity, and the connection and positioning device also includes a bearing (9) and a limit ring (10), wherein: The bearing (9) is placed in the accommodating cavity and sleeved on the pin shaft (6), and the outer ring surface of the bearing (9) abuts against the supporting wheel (5); The limit retaining ring (10) is arranged between the base (4) and the bearing (9), and the limit retaining ring (10) is also sleeved on the pin shaft (6). At the same time, the two ends of the limit retaining ring (10) are respectively against the base (4) and the bearing (9).

6. The device for reducing the marking of the tail of steel applied to the flying shear guide groove according to claim 5 is characterized in that: The bearing (9) is a graphite high-temperature bearing.

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