Centering device of rolling mill

Abstract

The utility model provides a centering device of a rolling mill, and belongs to the technical field of steel rolling equipment structures. According to the centering device, through the design that the first side baffle and the second side baffle synchronously slide along the guide rail and are both installed on the guide rail through the roller bearings, the problems that in the prior art, the precision of a centering mechanism of a rolling mill is difficult to guarantee, energy loss is large in the working process, and after long-term operation, the rolling mill cannot work easily are solved. And the working reliability and the running stability of the rolling mill are reduced. The centering device of the rolling mill comprises a first side baffle and a second side baffle which are oppositely arranged and used for clamping the two sides of a blank. The centering power module drives the first side baffle and the second side baffle to get close to each other or get away from each other; the centering power module comprises a centering power part, a guide rail, a roller bearing and a transmission part; the first side baffle and the second side baffle are mounted on the guide rails through roller bearings; the centering power piece drives the first side baffle and the second side baffle to slide synchronously along the guide rails through the transmission component.

Description

Technical Field

[0001] This utility model belongs to the technical field of steel rolling equipment structure, and in particular relates to a centering device for a rolling mill. Background Technology

[0002] The alignment device of the rolling mill rolls is a key piece of equipment to ensure that the rolls are accurately aligned during the rolling process (i.e., the upper and lower roll axes are aligned and the left and right sides are symmetrical). Its function is to ensure the uniformity and stability of the roll gap, thereby avoiding uneven thickness of the rolled workpiece, deviation, or abnormal wear of the equipment.

[0003] Existing mill centering devices, such as the roller structure of a hot strip rolling mill described in Chinese Utility Model Patent No. CN201676898U, enable automatic centering of the hot-rolled billet by setting the rollers in a V-shape. Because the rollers are V-shaped, the hot-rolled billet slides automatically on the rollers, making it difficult to guarantee accuracy and negatively impacting the mill's operational reliability. Similarly, a hot rolling line V-shaped centering roller group described in Chinese Utility Model Patent No. CN217798101U uses a bar transport roller track composed of several upper guide grooves, lower guide grooves, and V-shaped rollers, utilizing the centering effect of the V-shaped rollers to ensure the consistency of the rolling centerline. This solution also suffers from difficulty in guaranteeing accuracy and negatively impacts the mill's operational reliability.

[0004] Chinese utility model patent CN210450314U describes a plate continuous rolling mill centering device that achieves the centering function of the rolling mill by adjusting two centering limit plates. Although this technical solution has a simple structure and good centering effect, the energy loss during the operation of the centering limit plates is relatively large, and the motion stability of the equipment decreases after long-term operation. Chinese invention patent CN105798071B describes an online cooling device for section steel rolling mill that uses a centering carrier above the rollers to achieve the centering function. It also suffers from the problem of large energy loss and reduced motion stability of the equipment after long-term operation. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a centering device for a rolling mill, which solves the problems of difficulty in ensuring the accuracy of the centering mechanism of the rolling mill, large energy loss during operation, and reduced reliability and stability of the rolling mill after long-term operation.

[0006] To achieve the above and other related objectives, this utility model provides a centering device for a rolling mill, wherein a billet is moved into the device under the drive of a rolling mill power unit, comprising:

[0007] The first and second side baffles, which are set opposite to each other, are used to clamp the two sides of the blank.

[0008] The central power module drives the first side baffle and the second side baffle to move closer or further apart from each other;

[0009] The centering power module includes a centering power component, a guide rail, roller bearings, and a transmission component;

[0010] Both the first side baffle and the second side baffle are mounted on the guide rail via the roller bearing;

[0011] The centering power component drives the first side baffle and the second side baffle to slide synchronously along the guide rail through the transmission component.

[0012] Optionally, a base is also included, on which the centering power component, the guide rail, and the transmission component are all mounted.

[0013] Optionally, the transmission component includes a connecting rod located between the first side baffle and the second side baffle; the middle section of the connecting rod is rotatably connected to the base, the left end of the connecting rod is hinged to the first side baffle, and the right end of the connecting rod is hinged to the second side baffle; the centering power component drives the first side baffle to slide along the guide rail; under the action of the connecting rod, the second side baffle slides synchronously along the guide rail with the first side baffle, and moves closer to or further away from the first side baffle.

[0014] Optionally, the transmission component further includes a first connecting rod and a second connecting rod; the two ends of the first connecting rod are respectively hinged to the left end of the connecting rod and the first side baffle; the two ends of the second connecting rod are respectively hinged to the right end of the connecting rod and the second side baffle.

[0015] Optionally, the centering power component is a hydraulic cylinder, which drives the first side baffle to slide along the guide rail through telescopic movement.

[0016] Optionally, there are two guide rails arranged in parallel; the first side baffle and the second side baffle are both mounted on the two guide rails via roller bearings; the clamping surfaces of the first side baffle and the second side baffle are parallel to each other and perpendicular to the length direction of the guide rails.

[0017] As described above, the centering device for a rolling mill according to this utility model has at least the following beneficial effects:

[0018] The centering device of this mill is mounted on the guide rail by roller bearings through a first side baffle and a second side baffle. The centering power component is then driven by a transmission component to drive the first side baffle and the second side baffle to slide synchronously along the guide rail to move closer or further apart. This design not only ensures the accuracy of the centering device of this mill, but also, due to the setting of roller bearings, the first side baffle and the second side baffle generate rolling friction during the sliding process. Compared with sliding friction, the energy loss is smaller. After long-term operation, the centering device of this mill can still maintain reliable and stable operation. Attached Figure Description

[0019] Figure 1 The diagram shown is a schematic diagram of a centering device for a rolling mill according to this utility model.

[0020] Figure 2 The image shown is a side view of a centering device for a rolling mill according to this utility model.

[0021] Figure 3 The image shown is a top view of a centering device for a rolling mill according to this utility model.

[0022] Component designation explanation

[0023] First side baffle 1, second side baffle 2, centering power module 3, centering power component 31, guide rail 32, roller bearing 33, transmission component 34, first connecting rod 341, second connecting rod 342, connecting rod 343, base 4, motor 5, coupling 6. Detailed Implementation

[0024] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0025] Please see Figures 1 to 3 It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0026] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0027] Please see Figure 1 This utility model provides a centering device for a rolling mill. Similar to existing technologies, the billet moves into the rolling mill under the drive of a rolling mill power unit, which typically consists of a motor 5 and a coupling 6. The difference between this rolling mill centering device and existing technologies lies in that it includes:

[0028] like Figure 1 The first side baffle 1 and the second side baffle 2, which are arranged opposite to each other, are used to clamp the two sides of the blank.

[0029] like Figure 1 The centering power module 3 shown drives the first side baffle 1 and the second side baffle 2 to move closer or further apart from each other; when they move closer, the first side baffle 1 and the second side baffle 2 are close to the side of the blank, thereby achieving the centering effect.

[0030] like Figure 2 and Figure 3 As shown, the centering power module 3 includes a centering power component 31, a guide rail 32, a roller bearing 33, and a transmission component 34. The first side baffle 1 and the second side baffle 2 are both mounted on the guide rail 32 via the roller bearing 33. The centering power component 31 drives the first side baffle 1 and the second side baffle 2 to slide synchronously along the guide rail 32 via the transmission component 34. This synchronous sliding design of the first side baffle 1 and the second side baffle 2 along the guide rail 32 ensures the accuracy of the centering device of this rolling mill. The design that the first side baffle 1 and the second side baffle 2 are both mounted on the guide rail 32 via the roller bearing 33 results in rolling friction during the sliding process. Compared to sliding friction, this generates less energy loss, ensuring that the centering device of this rolling mill can maintain reliable and stable operation even after long-term operation. This solves the problems of difficulty in guaranteeing the accuracy of the centering mechanism in existing rolling mills, high energy loss during operation, and reduced reliability and stability of the rolling mill after long-term operation.

[0031] In another implementation, please refer to Figure 1 The centering device of this rolling mill also includes a base 4, on which the centering power component 31, the guide rail 32 and the transmission component 34 are all mounted. The base 4 provides a stable mounting position for other component modules.

[0032] In another implementation, please refer to Figure 3The transmission component 34 includes a connecting rod 343 located between the first side baffle 1 and the second side baffle 2. The middle section of the connecting rod 343 is rotatably connected to the base 4. The left end of the connecting rod 343 is hinged to the first side baffle 1, and the right end of the connecting rod 343 is hinged to the second side baffle 2. The centering power component 31 drives the first side baffle 1 to slide along the guide rail 32. Under the action of the connecting rod 343, the second side baffle 2 slides synchronously along the guide rail 32 with the first side baffle 1, and moves closer to or further away from the first side baffle 1. The structural design of this embodiment realizes the function of synchronous movement of the first side baffle 1 and the second side baffle 2. Moreover, the connecting rod 343 of this embodiment has a simple structure, is easy to maintain, and is reliable in operation.

[0033] In another implementation, please refer to Figure 3 The transmission component 34 also includes a first connecting rod 341 and a second connecting rod 342; the two ends of the first connecting rod 341 are respectively hinged to the left end of the connecting rod 343 and the first side baffle 1; the two ends of the second connecting rod 342 are respectively hinged to the right end of the connecting rod 343 and the second side baffle 2; the design of the first connecting rod 341 and the second connecting rod 342 further improves the reliability of the transmission component 34 and the smoothness of its operation.

[0034] In another implementation, please refer to Figure 1 The centering power component 31 is a hydraulic cylinder, which drives the first side baffle 1 to slide along the guide rail 32 through telescopic movement. The cooperation between the hydraulic cylinder and the connecting rod 343 transmission component 34 makes the entire centering power component simple in structure, efficient in operation, and with low energy loss.

[0035] In another implementation, please refer to Figure 1 and Figure 3 There are two guide rails 32, which are arranged in parallel. The first side baffle 1 and the second side baffle 2 are both mounted on the two guide rails 32 through the roller bearing 33. The clamping surfaces of the first side baffle 1 and the second side baffle 2 are parallel to each other and perpendicular to the length direction of the guide rail 32. This ensures that the first side baffle 1 and the second side baffle 2 can slide smoothly when performing the centering function.

[0036] In summary, this invention utilizes a design where the first side baffle 1 and the second side baffle 2 are mounted on a guide rail 32 by roller bearings 33. The centering power component 31, driven by a transmission component 34, propels the first side baffle 1 and the second side baffle 2 to slide synchronously along the guide rail 32, allowing them to move closer or further apart. This design not only ensures the accuracy of the centering device of the rolling mill but also, due to the roller bearings 33, generates rolling friction during the sliding process of the first side baffle 1 and the second side baffle 2. Compared to sliding friction, this results in less energy loss, ensuring the reliable and stable operation of the centering device even after long-term use. Therefore, this invention effectively overcomes the shortcomings of existing technologies and possesses high industrial application value.

[0037] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A centering device for a rolling mill, wherein the billet is moved to a position driven by the rolling mill's power unit. The feature is that it includes: The first and second side baffles, which are set opposite to each other, are used to clamp the two sides of the blank. The central power module drives the first side baffle and the second side baffle to move closer or further apart from each other; The centering power module includes a centering power component, a guide rail, roller bearings, and a transmission component; Both the first side baffle and the second side baffle are mounted on the guide rail via the roller bearing; The centering power component drives the first side baffle and the second side baffle to slide synchronously along the guide rail through the transmission component.

2. A centering device for a rolling mill according to claim 1, characterized in that Also includes: The base, the centering power component, the guide rail and the transmission component are all mounted on the base.

3. The centering device for a rolling mill according to claim 2, characterized in that: The transmission component includes a connecting rod, which is located between the first side baffle and the second side baffle. The middle section of the connecting rod is rotatably connected to the base, the left end of the connecting rod is hinged to the first side baffle, and the right end of the connecting rod is hinged to the second side baffle. The centering power component drives the first side baffle to slide along the guide rail; Under the action of the connecting rod, the second side baffle slides synchronously along the guide rail with the first side baffle, and moves closer to or further away from the first side baffle.

4. The centering device for a rolling mill according to claim 3, characterized in that: The transmission component further includes a first connecting rod and a second connecting rod; The two ends of the first connecting rod are respectively hinged to the left end of the connecting rod and the first side baffle; The two ends of the second connecting rod are respectively hinged to the right end of the connecting rod and the second side baffle.

5. The centering device for a rolling mill according to claim 3, characterized in that: The centering power component is a hydraulic cylinder, which drives the first side baffle to slide along the guide rail through telescopic movement.

6. The centering device for a rolling mill according to claim 1, characterized in that: There are two guide rails, which are arranged in parallel; the first side baffle and the second side baffle are both mounted on the two guide rails by means of the roller bearings; The clamping surfaces of the first side baffle and the second side baffle are parallel to each other and perpendicular to the length direction of the guide rail.

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