Novel loop compression roller device with hole pattern

Abstract

The invention discloses a novel looping compression roller device with hole patterns. The novel looping compression roller device comprises a looping compression roller support assembly, a looping compression roller, a conveying assembly and an anti-deviation plate assembly. The loop compression roller support assembly is used for being rotationally connected with a loop compression roller, and a groove formed in the surface of the loop compression roller is used for limiting axial displacement of a rolled piece conveyed by the conveying assembly; the anti-deviation plate assembly is used for preventing the rolled pieces conveyed by the conveying assembly from colliding with base side plates of the loop compression roller support assembly. Axial displacement of a rolled piece can be perfectly limited through the cambered surface grooves formed in the surface of the loop compression roller, strip steel scratching, edge abrasion and even strip breakage accidents caused by deviation in the high-speed rolling process are effectively prevented, meanwhile, flexible rotation is achieved through the deep groove ball bearing and the rotating shaft, the change of the height of the loop can be smoothly responded, and the service life of the loop is prolonged. And the length set amount of the rolled piece between the racks is absorbed or released in time, so that the tension fluctuation of the strip steel is controlled within an extremely small range, and the risk that the strip steel is snapped due to overlarge tension is avoided.

Description

Technical Field

[0001] This invention relates to the field of steel rolling equipment technology, specifically a novel perforated looper pressure roller device. Background Technology

[0002] Looping pressure rolls are key equipment components in continuous rolling production lines in the metallurgical industry. Their main function is to achieve tension-free rolling between stands, thereby ensuring the dimensional accuracy and product quality of the rolled pieces. During continuous rolling, maintaining a balance of metal flow rate between stands is a fundamental condition for stable rolling. Looping pressure rolls guide and restrict the rolled pieces through specific holes or grooves on their surface, forming and maintaining a stable and controllable arc-shaped area between two adjacent stands. This loop acts as a buffer, absorbing minor differences in flow rate between stands caused by factors such as dynamic speed drop of the motor, fluctuations in rolled piece size or temperature, and preventing excessive tension or steel piling caused by flow rate imbalance.

[0003] The existing rolled pieces experience uneven lateral stress during rolling due to speed fluctuations or roll gap deviations. If the rolling line is slightly off, the rolled piece will undergo axial displacement within the looper. The original looper rolls are flat rolls, which cannot restrict the axial displacement of the rolled piece. The roll surface does not exhibit normal wear when in contact with the red steel, but instead deviates to one side. The side plates of the looper body will also wear down accordingly. Repeated replacement and maintenance of the side plates significantly affect the service life of the looper body, and at the same time, it will cause significant fluctuations in the tension adjustment of the rolled piece. Summary of the Invention

[0004] The purpose of this invention is to provide a novel perforated slip-on pressure roller device in order to solve the problems mentioned above.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel perforated looper roller device, comprising: a looper roller support assembly, a looper roller, a transmission assembly, and an anti-deviation plate assembly;

[0006] The looper roller support assembly is used to rotatably connect the looper roller, and the grooves on the surface of the looper roller are used to limit the axial displacement of the rolled piece transported by the transmission assembly.

[0007] The anti-deviation plate assembly is used to prevent the rolled pieces transported by the transmission assembly from hitting the base side plate of the looper roller support assembly.

[0008] As a further scheme of the present application: the live loop pressure roller support assembly comprises a lower support base, an upper support base is arranged above the lower support base, a fixed pin is fixedly inserted above the upper support base, the fixed pin is fixedly inserted through the upper support base and the lower support base, a mounting hole is formed in the surface of the upper support base, a bearing seat is fixedly installed in the mounting hole, a fixed groove is formed in the inner side of the bearing seat, a deep groove ball bearing is rotatably connected to the inner side of the fixed groove, a rotating shaft is fixedly and connectingly connected in the middle of the deep groove ball bearing, a pressure roller is fixedly connected to the connecting end of the rotating shaft, an arc concave groove is formed in the middle region of the surface of the pressure roller, the pressure roller is located above the transmission assembly, two groups of the live loop pressure roller support assemblies are arranged on the left and right sides of the pressure roller, a connecting rod is fixedly connected to one end of the upper support base on the side of the top plate, and the two groups of upper support bases are fixedly connected through the connecting rod, and a butt joint seat is fixedly connected to the side of the lower support base close to the transmission assembly.

[0009] As a further scheme of the present application: the anti-deviation plate assembly comprises a connecting plate fixedly connected to the side of the butt joint seat, an anti-deviation plate is arranged on the side of the connecting plate close to the transmission assembly, a clamping rod is fixedly connected to the back of the anti-deviation plate, the anti-deviation plate is fixedly and connectingly connected to the side of the connecting plate close to the transmission assembly through the clamping rod, a damping ring is sleeved on the surface of the connecting plate at both ends, the two groups of damping rings are respectively abutted on the left and right ends of the anti-deviation plate, movable seats are fixedly connected to the left and right ends of the connecting plate, and clamping plates are rotatably connected to the movable shafts on the side of the movable seats, the clamping plates are L-shaped structures, and one end of each clamping plate is abutted on the surface of the damping ring to prevent the damping ring from shaking.

[0010] As a further scheme of the present application: the transmission assembly comprises a transmission belt and a plurality of transmission rollers, the transmission belt is sleeved on the plurality of transmission rollers, the transmission rollers are driven to rotate by a motor, and a plurality of protrusions are arranged on the surface of the transmission belt to increase the friction between the transmission belt and the rolled piece.

[0011] As a further scheme of the present application: the lower support base is provided with a fixed hole, the inner side of the fixed hole is provided with an internal thread, the surface of the upper support base is provided with a through hole corresponding to the position of the fixed pin, the inner diameter of the through hole is matched with the outer diameter of the fixed pin, the surface of the lower support base is provided with a threaded hole corresponding to the position of the fixed pin, the outer side of the fixed pin is provided with an external thread, the fixed pin is threadedly connected with the internal thread of the threaded hole through the external thread, the bearing seat and the mounting hole of the upper support base are connected in an interference fit, the rotating shaft and the inner ring of the deep groove ball bearing are connected in an interference fit, and the pressure roller and the connecting end of the rotating shaft are fixedly connected by welding.

[0012] As a further scheme of the present application: the blocking ring is internally provided with a through hole matching the outer diameter of the connecting plate, the blocking ring is sleeved with the connecting plate through the through hole, the movable seat is fixed with the connecting plate by welding, the clamping plate is provided with a movable hole at one end close to the movable seat, a movable shaft at the side of the movable seat penetrates through the movable hole, the clamping plate is rotationally connected with the movable shaft through the movable hole, and the clamping plate is provided with an anti-skid pattern at one end away from the movable seat.

[0013] As a further scheme of the present application: the anti-deviation plate is made of metal, a side surface of the anti-deviation plate close to the transmission assembly is a smooth plane, the clamping rod is fixed with the back surface of the anti-deviation plate by welding, the connecting plate is made of stainless steel, the cross section of the connecting plate is a rectangular structure, the length of the connecting plate matches the transmission width of the transmission assembly, and the blocking ring is made of rubber.

[0014] As a further scheme of the present application: the number of the clamping plates matches the number of the movable seats, the length of the anti-deviation plate matches the length of the connecting plate, and the cross section of the clamping rod is an elliptical structure.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] The arc groove provided on the surface of the live loop press roller in the present application can perfectly limit the axial displacement of the rolled piece, effectively prevents the strip steel from being scratched, the edge from being worn or even the strip from being broken due to deviation in the high-speed rolling process, and through the flexible rotation realized by the deep groove ball bearing and the rotating shaft, can smoothly respond to the change of the live loop height, timely absorb or release the rolled piece length set between the racks, so as to control the strip tension fluctuation in a very small range, avoid the risk of the strip being pulled apart due to excessive tension, and prevent the live loop from being accumulated due to insufficient tension to cause equipment damage such as piling up in the rolling process, and ensure the continuous and stable operation of the continuous rolling process.

[0017] The transmission assembly increases the friction between the transmission belt surface and the rolled piece through the convex design of the transmission belt surface, ensures the stability and consistency of the rolled piece conveying, and provides reliable entry conditions for the stable formation of the live loop. The anti-deviation plate assembly is fixed on the support through the connecting plate, the anti-deviation plate is conveniently installed through the clamping rod, and the anti-deviation plate is effectively prevented from loosening through the clever cooperation of the blocking ring and the L-shaped clamping plate. The smooth surface of the anti-deviation plate forms a reliable protective barrier for the rolled piece, can effectively intercept the rolled piece swinging due to tension fluctuation or accidental deviation, and avoid the direct knocking or impact of the rolled piece on the base side plate of the live loop press roller support assembly or the support seat, which not only protects the expensive equipment components from damage, prolongs the service life of the equipment, but also further assists in guiding the rolled piece to travel along the preset path, reduces the unplanned downtime, and improves the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of a novel loop press roller device with a hole type according to the present application;

[0019] Figure 2 is a schematic diagram of the structure of the top part of a novel loop press roller device with a hole type according to the present application;

[0020] Figure 3 is a schematic diagram of the structure of a press roller in a novel loop press roller device with a hole type according to the present application;

[0021] Figure 4 is a schematic diagram of the structure of a loop press roller support assembly in a novel loop press roller device with a hole type according to the present application;

[0022] Figure 5 is a schematic diagram of the structure of a bearing seat in a novel loop press roller device with a hole type according to the present application;

[0023] Figure 6 is a schematic diagram of the structure of a deviation prevention plate in a novel loop press roller device with a hole type according to the present application;

[0024] Figure 7 is a schematic diagram of the structure of a deviation prevention plate assembly in a novel loop press roller device with a hole type according to the present application.

[0025] In the figure: 1, loop press roller support assembly; 2, loop press roller; 3, transmission assembly; 4, deviation prevention plate assembly; 11, lower support seat; 12, upper support seat; 13, fixed bolt; 14, bearing seat; 15, fixed groove; 16, deep groove ball bearing; 17, rotating shaft; 18, press roller; 19, arc concave groove; 110, connecting rod; 111, butt joint seat; 41, connecting plate; 42, deviation prevention plate; 43, clamping rod; 44, blocking ring; 45, movable seat; 46, clamping plate. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0027] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "arrangement" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The embodiments of the present application will be described below according to the overall structure of the present application.

[0028] Referring to Figures 1 to 7 In the embodiment of the present application, a new type of loop press roller device with holes comprises: firstly, installing the loop press roller support assembly 1, fixing the lower support base 11 to the equipment foundation plane through the anchor bolt, and using a precision level to calibrate, then, preliminarily centering the upper support base 12 through the groove at the bottom of the lower support base 11 and the positioning boss of the lower support base 11, and using the fixed pin 13 to penetrate the through hole of the upper support base 12 and screw into the threaded hole of the lower support base 11, so that the upper and lower support bases are connected as a whole,

[0029] Then install the loop press roller 2, press the deep groove ball bearing 16 into the fixed groove 15 of the bearing seat 14, the bearing seat 14 is pressed into the installation hole of the upper support base 12 with an interference fit, the shaft 17 is installed with an interference fit with the inner ring of the deep groove ball bearing 16, and the press roller 18 is fixed to the end of the shaft 17 by bevel welding. After installation, it is necessary to ensure that the surface arc groove 19 of the press roller 18 has a parallelism error of not more than 0.1mm with the transmission roller axis of the transmission assembly 3,

[0030] Then install the anti-deviation plate assembly 4, first weld the connecting plate 41 to the side surface of the butt joint seat 111 of the lower support base 11, then clamp the clamping rod 43 on the back of the anti-deviation plate 42 into the corresponding groove of the connecting plate 41, ensure that the clamping is tight, then sleeve the blocking ring 44 from both ends of the connecting plate 41, and rotate the L-shaped clamping plate 46 so that one end abuts against the surface of the blocking ring 44, and finally adjust the position of the anti-deviation plate 42 so that it maintains a gap of about 3mm from the edge of the rolled piece,

[0031] Example one:

[0032] Take the rolling of ordinary strip steel as an example, the device is installed between the finishing rolling mill, the curvature radius of the arc groove 19 of the loop press roller 2 is designed as R65mm, and the depth is 6mm, in the rolling process, the motor drives the transmission roller of the transmission assembly 3, so that the transmission belt with the convex is transmitted at a set speed, when the loop is formed due to the imbalance of the inter-stand flow rate, the strip steel is lifted, the arc groove 19 of the loop press roller 2 flexibly rotates under the support of the deep groove ball bearing 16, the smooth plane of the anti-deviation plate assembly 4 guides the strip steel and prevents the strip steel from knocking the lower support base 11,

[0033] Embodiment two:

[0034] For the rolling scene of alloy steel with high tensile strength at about 600 DEG C, the key components are strengthened in this embodiment: the press roller 18 is made of 42CrMo material and is treated by nitriding, the anti-deviation plate 42 is made of wear-resistant alloy steel and is sprayed with a tungsten carbide coating, when installed, the fitting surface of the shaft 17 and the deep groove ball bearing 16 is coated with molybdenum disulfide high-temperature lubricating grease, the bearing play is selected as C3 group to adapt to thermal expansion, the arc groove 19 can effectively guide the high-temperature strip steel, and the high-temperature resistance and wear resistance of the anti-deviation plate 42 ensure the long-term reliable anti-collision function in harsh working conditions.

[0035] The working principle of the application is:

[0036] The rolled piece is conveyed into the device area by the transmission assembly 3, the surface of the transmission belt of the transmission assembly 3 is provided with convexes, which can effectively increase the friction between the transmission belt and the rolled piece, and ensure the stable forward movement of the rolled piece, when the rolled piece runs below the loop press roller 2, the loop press roller support assembly 1 begins to play a key role, the loop press roller 2 is supported in the bearing seat 14 through the shaft 17 and the deep groove ball bearing 16, so that the press roller 18 can flexibly rotate, the arc groove 19 opened in the middle region of the surface of the press roller 18 is the core structure for limiting the axial displacement of the rolled piece, which can accurately accommodate and guide the rolled piece, prevent the rolled piece from deviating during the transmission process, and the whole loop press roller support assembly 1 provides stable support through the lower support base 11 and the upper support base 12, the two are firmly connected by the fixed pin 13, and the connecting rod 110 connecting the upper support bases 12 on both sides further enhances the overall rigidity of the structure, and ensures that the loop press roller 2 remains stable when bearing the pressure and force of the rolled piece;

[0037] In the rolling process, a constant small tension needs to be maintained between the finishing stands. If the second flow of the downstream stand is greater than that of the upstream stand, the rolled piece will be pulled tight and the tension will be too large, which may cause the strip to be pulled apart. If the second flow of the downstream stand is smaller, the rolled piece will be loose and form a loop. At this time, the loop press roller 2, guided by the arc concave groove 19, absorbs or releases the length of the rolled piece by changing the height position, as a buffer link, to adjust the length of the rolled piece between the two stands in real time, so as to control the tension fluctuation within the allowable range.

[0038] The anti-deviation plate assembly 4 plays an important role in safety guarantee in this process. The anti-deviation plate 42 is fixedly connected to the connecting plate 41 connected to the butt joint seat 111 through the clamping rod 43 on the back thereof, and the smooth plane thereof faces the transmission assembly 3 side, providing a smooth passing interface for the rolled piece. The blocking ring 44 is looped on the connecting plate 41 and abuts at both ends of the anti-deviation plate 42. The L-shaped clamping plate 46 is rotatably connected to the movable seat 45, and the end thereof abuts on the surface of the blocking ring 44, effectively preventing the accidental shaking of the blocking ring 44 and even the entire anti-deviation plate 42. This structure can effectively prevent the rolled piece shaken by tension fluctuation or deviation from colliding with the base side plate of the loop press roller support assembly 1, avoiding damage to the equipment, and further guiding the rolled piece to travel along the correct path.

[0039] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art, according to the technical solution and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A novel perforated looper pressure roller device, characterized in that, include: Looping roller support assembly (1), looping roller (2), transmission assembly (3) and anti-deviation plate assembly (4); The looper roller bracket assembly (1) is used to rotatably connect the looper roller (2), and the groove on the surface of the looper roller (2) is used to limit the axial displacement of the rolled piece transported by the transmission assembly (3); The anti-deviation plate assembly (4) is used to prevent the rolled pieces transported by the transmission assembly (3) from hitting the base side plate of the looper roller support assembly (1).

2. The novel perforated slip-on pressure roller device according to claim 1, characterized in that, The loose-fitting pressure roller bracket assembly (1) includes a lower support base (11), an upper support base (12) is provided above the lower support base (11), a fixing pin (13) is fixedly inserted above the upper support base (12), the fixing pin (13) passes through the upper support base (12) and is fixedly inserted into the lower support base (11), the upper support base (12) has a mounting hole, a bearing seat (14) is fixedly installed in the hole, a fixing groove (15) is provided on the inner side of the bearing seat (14), a deep groove ball bearing (16) is rotatably engaged in the inner side of the fixing groove (15), and a rotating shaft is fixedly engaged in the middle of the deep groove ball bearing (16). (17) A pressure roller (18) is fixedly connected to one side of the connecting end of the rotating shaft (17). An arc groove (19) is opened in the middle area of ​​the surface of the pressure roller (18). The pressure roller (18) is located in the area directly above the transmission component (3). The number of the loose pressure roller bracket assembly (1) is arranged in two sets, which are located on the left and right sides of the pressure roller (18). A connecting rod (110) is fixedly connected to one side of the upper support seat (12) near the top plate. The two sets of upper support seats (12) are fixedly connected to each other through the connecting rod (110). A docking seat (111) is fixedly connected to the side of the lower support seat (11) near the transmission component (3).

3. A novel perforated slip-on pressure roller device according to claim 2, characterized in that, The anti-deviation plate assembly (4) includes a connecting plate (41) fixedly connected to the side of the docking seat (111). An anti-deviation plate (42) is provided on the side of the connecting plate (41) near the transmission component (3). A locking rod (43) is fixedly connected to the back of the anti-deviation plate (42). The anti-deviation plate (42) is fixedly clamped to the side of the connecting plate (41) near the transmission component (3) by the locking rod (43). A retaining ring (44) is loosely fitted on both ends of the connecting plate (41). Two sets of retaining rings (44) abut against the left and right ends of the anti-deviation plate (42) respectively. Movable seats (45) are fixedly connected to the left and right ends of the connecting plate (41). A clamping plate (46) is rotatably connected to the movable shaft on the side of the movable seat (45). The clamping plate (46) has an L-shaped structure, and one end of it abuts against the surface of the retaining ring (44) to prevent the retaining ring (44) from shaking.

4. A novel perforated slip-on pressure roller device according to claim 2, characterized in that, The transmission component (3) includes a transmission belt and several drive rollers. The transmission belt is sleeved on the several drive rollers. The drive rollers are driven to rotate by a motor. The surface of the transmission belt is provided with several protrusions to increase the friction between the belt and the workpiece.

5. A novel perforated slip-on pressure roller device according to claim 2, characterized in that, The lower support (11) has a fixing hole with an internal thread inside. The upper support (12) has a through hole on its surface corresponding to the position of the fixing pin (13). The inner diameter of the through hole is adapted to the outer diameter of the fixing pin (13). The lower support (11) has a threaded hole on its surface corresponding to the position of the fixing pin (13). The fixing pin (13) has an external thread on its outer side. The fixing pin (13) is threadedly connected to the internal thread of the threaded hole through the external thread. The bearing seat (14) and the mounting hole of the upper support (12) are connected by an interference fit. The rotating shaft (17) and the inner ring of the deep groove ball bearing (16) are connected by an interference fit. The pressure roller (18) and the connecting end of the rotating shaft (17) are fixed by welding.

6. A novel perforated slip-on pressure roller device according to claim 3, characterized in that, The inner side of the stop ring (44) is provided with a through hole that matches the outer diameter of the connecting plate (41). The stop ring (44) is loosely fitted with the connecting plate (41) through the through hole. The movable seat (45) is fixed to the connecting plate (41) by welding. The end of the clamping plate (46) near the movable seat (45) is provided with a movable hole. The movable shaft on the side of the movable seat (45) passes through the movable hole. The clamping plate (46) is rotatably connected to the movable shaft through the movable hole. The end of the clamping plate (46) away from the movable seat (45) is provided with anti-slip texture.

7. A novel perforated slip-on pressure roller device according to claim 3, characterized in that, The anti-deviation plate (42) is made of metal. The surface of the anti-deviation plate (42) near the transmission component (3) is a smooth plane. The clamp (43) is fixed to the back of the anti-deviation plate (42) by welding. The connecting plate (41) is made of stainless steel. The cross-section of the connecting plate (41) is a rectangular structure. The length of the connecting plate (41) is adapted to the transmission width of the transmission component (3). The damping ring (44) is made of rubber.

8. A novel perforated slip-on pressure roller device according to claim 3, characterized in that, The number of clamps (46) is matched with the number of movable seats (45), the length of the anti-deviation plate (42) is matched with the length of the connecting plate (41), and the cross-section of the clamp rod (43) is elliptical.

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