Rolling mill base locking equipment

Abstract

The invention belongs to the technical field of steel rolling production equipment, relates to rolling mill base locking equipment, and aims to solve the problem of serious abrasion between a traditional rolling mill base and a bottom plate. The rolling mill base locking equipment comprises two base supports which are symmetrically arranged, and a supporting wheel component and a guide wheel component which are mounted on the inner sides of the two base supports; the supporting wheels are used for supporting the rolling mill bottom plate, the pressing plate and the supporting wheels are matched to form a rolling sliding groove to lock the bottom plate, and sliding friction is reduced. The guide wheel component is in rolling contact with the side face of the rolling mill bottom plate through a guide wheel, and guiding and limiting of the rolling mill bottom plate are guaranteed. Through the innovative design of roller supporting and guide wheel guiding, the problem that the contact surface of the rolling mill bottom plate and the rolling mill base is seriously abraded is solved, the purposes of improving the mounting precision and facilitating replacement are achieved, and the rolling mill bottom plate is suitable for various types of rolling mills.

Description

Technical Field

[0001] The invention belongs to the technical field of steel rolling production equipment and relates to a rolling mill base locking device. Background Art

[0002] The mill base is an important basic part of the mill, which has a significant impact on the installation accuracy, normal operation and service life of the mill. The design of the mill base needs to consider the connection structure with the locking cylinder and other components to ensure the stability of the overall structure and easy operation and maintenance. In terms of manufacturing, with the development of large-scale rolling mills, such as the 5600 mm wide and thick plate roughing mill, the manufacturing of its base has also made significant progress. This type of base adopts high-end heavy equipment manufacturing technology, such as multi-package steel hydration casting technology, and all technical parameters are at the world's leading level, marking the improvement of my country's mill base manufacturing capacity. In terms of structure, the mill base is usually a box structure with an open top, and its inner cavity shape corresponds to the bottom of the mill body, which is convenient for assembly and positioning. The mill body and the base are detachably connected, and a stable connection is achieved through a specific connection mechanism, which is convenient for installation and maintenance. However, it was found during the production process that the traditional mill base slide structure has a serious wear problem during the lateral movement, which increases the production cost.

[0003] At present, the research focus of the rolling mill base is concentrated on the base structure. The traditional rolling mill base and the rolling mill bottom plate are installed by sliding friction. During use, the sliding friction between the rolling mill bottom plates, the corrosion of the cooling water and the metal fatigue wear will cause the rolling mill bottom plate and the base surface to wear rapidly, thereby affecting the rolling mill accuracy and increasing production costs.

[0004] Therefore, there is a need for a new rolling mill base locking device that can reduce the wear of the contact surface between the rolling mill bottom plate and the rolling mill base, has high installation accuracy and is easy to replace. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a rolling mill base locking device to solve the problem of severe wear of the contact surface between the rolling mill bottom plate and the rolling mill base.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A rolling mill base locking device, comprising two base brackets arranged symmetrically and a supporting wheel component and a guide wheel component installed inside the base brackets;

[0008] The support wheel component includes a support wheel bracket, a pressure plate, a rotating shaft and a support wheel, the support wheel bracket is rotatably connected to the base bracket through the rotating shaft, the support wheel is rotatably connected to the inner side of the support wheel bracket, and is used to support the rolling mill bottom plate, the pressure plate is detachably connected to the support wheel bracket, and is located above the support wheel and the rolling mill bottom plate, and cooperates with the support wheel to form a rolling slide groove for accommodating and locking the rolling mill bottom plate;

[0009] The guide wheel component includes a guide wheel bracket and a guide wheel, the guide wheel bracket is fixedly connected to the inner side of the base bracket, the guide wheel is rotatably connected to the guide wheel bracket, and the guide wheel is in rolling contact with the side of the rolling mill bottom plate to guide and limit the rolling mill bottom plate in lateral movement.

[0010] Furthermore, a bottom limit block arranged below the supporting wheel bracket and side limit blocks arranged on both sides of the supporting wheel bracket are installed on the base bracket to limit the rotation angle of the supporting wheel component.

[0011] Furthermore, there are two bottom limit blocks, which are respectively arranged on the left and right sides below the supporting wheel bracket.

[0012] Furthermore, the number of the supporting wheel components on one base support is not less than three, and the rolling mill bottom plate is in full contact with at least two groups of supporting wheel components at the same time.

[0013] Furthermore, the support wheel bracket is provided with two support wheels which are spaced apart along the lateral movement direction of the rolling mill bottom plate.

[0014] Furthermore, a first adjusting gasket group is provided between the pressure plate and the supporting wheel bracket, so as to adjust the height of the rolling chute by increasing or decreasing the thickness of the first adjusting gasket group.

[0015] Furthermore, a second adjusting shim group is provided between the guide wheel bracket and the base bracket, so as to adjust the distance between the guide wheel and the side of the rolling mill bottom plate by increasing or decreasing the thickness of the second adjusting shim group.

[0016] Furthermore, the support wheel and the support wheel bracket are connected via a support wheel bearing, and the guide wheel axle and the guide wheel bracket are connected via a guide wheel bearing.

[0017] Furthermore, an oil cup for supplying oil to the supporting wheel bearing is arranged on the supporting wheel bracket.

[0018] Furthermore, an oil cup for supplying oil to the guide wheel bearing is provided on the guide wheel bracket.

[0019] The beneficial effects of the present invention are:

[0020] The present invention provides an innovative rolling mill base locking device, which aims to solve the problem of severe wear caused by sliding friction between the traditional rolling mill base and the rolling mill bottom plate. The device achieves stable support and precise guidance of the rolling mill bottom plate by cleverly combining the support wheel component and the guide wheel component. The support wheel component supports the rolling mill bottom plate in a rolling manner and cooperates with the pressure plate to form a rolling chute, which effectively reduces the wear of the contact surface and improves the installation accuracy. The guide wheel component ensures the accurate guidance and limitation of the rolling mill bottom plate during the lateral movement process, further reducing the side wear. This innovative design not only significantly improves the operating stability and service life of the rolling mill, but also greatly reduces the production cost and maintenance difficulty.

[0021] The core of this technical solution lies in its unique roller support and guide wheel guide mechanism, as well as the detachable and adjustable design features. Compared with the traditional sliding base, the locking device of the present invention can rotate freely, effectively absorbing the impact force when the rolling mill moves horizontally, thereby protecting the base from damage. At the same time, by adjusting the thickness of the shim group, the height of the rolling chute and the distance between the guide wheel and the side of the rolling mill bottom plate can be easily adjusted, ensuring the stability and accuracy of the equipment during long-term use. In addition, when the support wheel is worn after long-term use, by replacing the support wheel, the precise positioning of the distance between the support wheel and the pressure plate can be maintained, ensuring the accuracy of the installation of the rolling mill; secondly, the oil cup design in the equipment also provides a convenient lubrication method for the bearings of the support wheel and the guide wheel, further extending the service life of the equipment.

[0022] In summary, the rolling mill base locking device of the present invention has taken a leading position in the rolling mill manufacturing industry with its innovative design concept, excellent practical performance and significant cost reduction and efficiency improvement effects. Its detachable, adjustable and wear-resistant design features enable the device to be widely used in various types of rolling mills, especially in large and heavy rolling mills. By reducing wear, improving precision and extending life, the present invention provides strong support for the sustainable development of the rolling mill manufacturing industry.

[0023] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0025] Figure 1 It is a structural schematic diagram of a rolling mill base locking device in the embodiment;

[0026] Figure 2 It is a schematic diagram of the assembly of a rolling mill base locking device in the embodiment;

[0027] Figure 3 It is a structural schematic diagram of the support wheel component in the embodiment;

[0028] Figure 4 for Figure 3 Side view of

[0029] Figure 5 It is a structural schematic diagram of the guide wheel component in the embodiment;

[0030] Figure 6 for Figure 5 Top view of the .

[0031] Figure numerals: support wheel component 1, guide wheel component 2, base bracket 3, support wheel bracket 4, first adjustment gasket group 5, pressure plate 6, rotating shaft 7, support wheel 8, guide wheel bracket 9, guide wheel axle 10, guide wheel 11, second adjustment gasket group 12, bottom limit block 13, side limit block 14. DETAILED DESCRIPTION

[0032] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0033] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0034] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0035] See also Figure 1 to Figure 6 , which is a rolling mill base locking device, comprising two base brackets 3 arranged symmetrically and a supporting wheel component 1 and a guide wheel component 2 installed inside the base bracket 3;

[0036] The support wheel component 1 includes a support wheel bracket 4, a pressure plate 6, a rotating shaft 7 and a support wheel 8. The support wheel bracket 4 is rotatably connected to the base bracket 3 via the rotating shaft 7. The support wheel 8 is rotatably connected to the inner side of the support wheel bracket 4 for supporting the rolling mill bottom plate. The pressure plate 6 is detachably connected to the support wheel bracket 4 and is located above the support wheel 8 and the rolling mill bottom plate, and cooperates with the support wheel 8 to form a rolling slide groove for accommodating and locking the rolling mill bottom plate.

[0037] The guide wheel component 2 includes a guide wheel bracket 9, a guide wheel axle 10 and a guide wheel 11. The guide wheel bracket 9 is fixedly connected to the inner side of the base bracket 3 by bolts. The guide wheel 11 is rotatably connected to the guide wheel bracket 9 through the guide wheel axle 10, and the guide wheel 11 is in rolling contact with the rolling mill bottom plate to guide the rolling mill bottom plate and limit the axial displacement of the rolling mill bottom plate.

[0038] During the transverse movement of the rolling mill, the rolling mill bottom plate is fixed in an axial position perpendicular to the transverse movement direction by the guide wheels on both sides, which plays a role in guiding the transverse movement of the rolling mill while fixing the rolling mill body, and fixes the vertical position perpendicular to the transverse movement direction by the support wheels and the pressure plate.

[0039] Furthermore, a bottom limit block 13 arranged below the support wheel bracket 4 and side limit blocks 14 arranged on both sides of the support wheel bracket 4 are installed on the base bracket 3 to limit the rotation angle of the support wheel component 1; at the same time, side limit blocks 14 are set on the left and right sides of the support wheel bracket 4, and double limitation prevents the support wheel component from rotating at a large angle.

[0040] Specifically, the support wheel component 1 is installed on the base bracket 3, and the support wheel component 1 as a whole can rotate around the rotating shaft 7 on the base bracket. The specific deflection angle is determined according to the installation position of the side limit blocks 14 on both sides and the size and position of the bottom limit block 13 of the support. The number and spacing of the support wheel components 1 are adjusted according to the lateral movement distance of the rolling mill. In order to ensure that the rolling mill is in an overall horizontal state when placed on the locking device, the total number of support wheel components 1 on the base bracket 3 is not less than three. During the lateral movement of the rolling mill, the bottom plate of the rolling mill is fully in contact with at least two groups of support wheel components 1 at the same time.

[0041] During the moving process of the rolling mill, the lower surface of the rolling mill bottom plate contacts the top of the support wheel 8, and the upper surface of the rolling mill bottom plate is completely in contact with the lower surface of the pressure plate 6. The two groups of support wheel components fix the rolling mill body on the locking device and keep it level. A first adjusting shim group 5 is arranged between the pressure plate 6 and the support wheel bracket 4. By increasing or decreasing the thickness of the first adjusting shim group 5, a gap of 0.1 to 0.2 mm is maintained between the rolling mill bottom plate and the support wheel 8 and the pressure plate 6, so that the rolling mill can remain unobstructed and not tilted during the lateral movement.

[0042] During the moving process of the rolling mill, the side surface of the rolling mill bottom plate is always consistent with the guiding direction of the guide wheel component 2. A second adjusting shim group 12 is arranged between the guide wheel bracket 9 and the base bracket 3. The position of the guide wheel component is adjusted by increasing or decreasing the thickness of the second adjusting shim group 12, so that a gap of 0.1 mm is left between the guide wheel 11 and the side surface of the rolling mill bottom plate, thereby ensuring that the rolling mill can move back and forth smoothly in the locking device.

[0043] The locking device as a whole adopts dry oil lubrication. An oil cup is arranged on the support wheel bracket 4. By manually injecting dry oil, the support wheel bearing used for rotating and connecting the support wheel 8 and the support wheel bracket 4 is filled with dry oil, ensuring that the support wheel will not generate dry friction during operation, thereby increasing the service life of the support wheel component 1.

[0044] The guide wheel component 1 also uses a manual dry oil injection method. Dry oil is added to the guide wheel bearings arranged on both sides of the guide wheel 11 for rotatingly connecting the guide wheel axle 10 and the guide wheel bracket 9 through the oil cup set on the guide wheel bracket 9, so as to avoid dry friction when the guide wheel 11 is running and improve the service life of the guide wheel component 2.

[0045] Furthermore, the bottom limit block 13 is two pieces, which are arranged on the left and right sides below the support wheel bracket 4, and the side limit blocks 14 are two pieces, which are arranged on the left and right sides of the support wheel bracket 4, wherein the bottom limit block 13 at the bottom plays a major positioning role, and the side limit blocks 14 on the left and right sides play a protective role. During the operation of the rolling mill, when the rolling mill bottom plate enters between the support wheel 8 and the pressure plate 6, the support wheel component 1 is in a horizontal state as a whole. When the rolling mill bottom plate is detached from the support wheel component, if there is no limit block to limit its rotation, the overall rotation angle of the support wheel component is not fixed. When the rolling mill bottom plate moves in again, the rolling mill bottom plate will collide with the pressure plate 6 and the support wheel 8, thereby damaging the equipment; when the base bracket is provided with a limit block, by adjusting the limit block height and the installation position of the limit block, the overall rotation angle of the support wheel component 1 is ensured to be within 0.5°, thereby preventing the rolling mill bottom plate from colliding with the support wheel component 1 and extending the service life of the locking device. The limit blocks on both sides of the support wheel play a protective role. When the lower limit block is loose or worn too much to limit the position, the limit blocks on both sides protect the rotation angle of the support wheel components to remain within the permitted range, thereby protecting the support wheel components and reducing the repair cost during the production process.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A rolling mill base locking device, characterized in that: It comprises two base brackets arranged symmetrically and a supporting wheel component and a guide wheel component installed inside the base brackets; The support wheel component includes a support wheel bracket, a pressure plate, a rotating shaft and a support wheel, the support wheel bracket is rotatably connected to the base bracket through the rotating shaft, the support wheel is rotatably connected to the inner side of the support wheel bracket, and is used to support the rolling mill bottom plate, the pressure plate is detachably connected to the support wheel bracket, and is located above the support wheel and the rolling mill bottom plate, and cooperates with the support wheel to form a rolling slide groove for accommodating and locking the rolling mill bottom plate; The guide wheel component includes a guide wheel bracket and a guide wheel, the guide wheel bracket is fixedly connected to the inner side of the base bracket, the guide wheel is rotatably connected to the guide wheel bracket, and the guide wheel is in rolling contact with the side of the rolling mill bottom plate to guide and limit the rolling mill bottom plate in lateral movement.

2. The rolling mill base locking device according to claim 1, characterized in that: A bottom limiting block arranged below the supporting wheel bracket and side limiting blocks arranged on both sides of the supporting wheel bracket are installed on the base bracket to limit the rotation angle of the supporting wheel component.

3. The rolling mill base locking device according to claim 2, characterized in that: There are two bottom limit blocks, which are respectively arranged on the left and right sides below the support wheel bracket.

4. The rolling mill base locking device according to claim 1, characterized in that: The number of the supporting wheel components on one base support is not less than three, and the rolling mill bottom plate is in full contact with at least two groups of supporting wheel components at the same time.

5. The rolling mill base locking device according to claim 1, characterized in that: The support wheel bracket is provided with two support wheels which are arranged at intervals along the lateral movement direction of the rolling mill bottom plate.

6. The rolling mill base locking device according to claim 1, characterized in that: A first adjusting gasket group is also provided between the pressure plate and the supporting wheel bracket, so as to adjust the height of the rolling chute by increasing or decreasing the thickness of the first adjusting gasket group.

7. The rolling mill base locking device according to claim 1, characterized in that: A second adjusting shim group is arranged between the guide wheel bracket and the base bracket, so as to adjust the distance between the guide wheel and the side surface of the rolling mill bottom plate by increasing or decreasing the thickness of the second adjusting shim group.

8. The rolling mill base locking device according to claim 1, characterized in that: The support wheel is connected to the support wheel bracket via a support wheel bearing, and the guide wheel axle is connected to the guide wheel bracket via a guide wheel bearing.

9. The rolling mill base locking device according to claim 8, characterized in that: An oil cup for supplying oil to the supporting wheel bearing is arranged on the supporting wheel bracket.

10. The rolling mill base locking device according to claim 8, characterized in that: An oil cup for supplying oil to the guide wheel bearing is arranged on the guide wheel bracket.

Images