An electric pressing down and anti-rotation device for hot rolling mill of plate and strip
By designing anti-rotation mechanism and anti-rotation beam in the hot rolling mill, the possible rotation problems of the rolling roll during the rolling process are solved, the stability and accuracy of rolling are improved, the equipment is protected, and the normal production is ensured.
Patent Information
- Application Number
- CN202421237874.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2035-01-23
AI Technical Summary
During the rolling process of traditional hot rolling mills, the rolling rolls are subjected to high pressure and torque. If the rolling rolls rotate, it may cause equipment damage, product quality decline, and even cause safety accidents, affecting the normal operation and production efficiency of the equipment.
An electric pressure-down anti-rotation device for hot rolling mill of plate and strip is designed, including an anti-rotation mechanism and an anti-rotation beam. The anti-rotation mechanism detects and prevents the roll from rotating through the combination of arc-shaped anti-rotation block, telescopic rod, anti-rotation spring and pressure sensor. The anti-rotation beam is fixedly connected to the thrust bearing to prevent its rotation.
Effectively prevent the roll from rotating during the rolling process, ensure the stability and accuracy of rolling, protect the equipment, and ensure the normal production.
Smart Images
Figure CN222710455U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of metallurgical mechanical equipment, and in particular relates to an electric pressing down anti-rotation device for a plate and strip hot rolling mill. Background Art
[0002] At present, in the processing workshops of aluminum plates and strips, copper plates and strips, hot rolling mills widely use the "electric pressing down + hydraulic fine-tuning" device to adjust the roll gap. First, the electric pressing down is used for large stroke coarse adjustment, and then the servo-controlled hydraulic cylinder is used to fine-tune the roll gap. The two together complete the rapid and precise control of the roll gap. Due to the large thickness specifications of the incoming materials of the hot rolling mill and the fast rolling rhythm, the position of the upper roll needs to be adjusted quickly and frequently during production. Electric pressing down can well meet these requirements.
[0003] The problem with the existing technology is that in traditional hot rolling mills, the rollers are subjected to great pressure and torque during the hot rolling process. If the rollers rotate, it may cause equipment damage, product quality degradation, and even cause safety accidents, thereby affecting the normal operation of the equipment and reducing production efficiency and quality. Utility Model Content
[0004] In view of the problems existing in the prior art, the utility model provides an electric pressing down and anti-rotation device for a hot rolling mill for plates and strips, which has the advantage of preventing the rollers on the hot rolling mill from rotating. It solves the problem that in the existing hot rolling mill, the rollers will be subjected to great pressure and torque during the hot rolling process. If the rollers rotate, it may cause equipment damage, product quality decline, and even cause safety accidents, thereby affecting the normal operation of the equipment and reducing production efficiency and quality.
[0005] The utility model is implemented as follows: an electric depression and anti-rotation device for a hot rolling mill for plates and strips comprises a rolling mill arch, a control module is fixedly installed on the outer wall of the rolling mill arch, the upper end of the rolling mill arch is fixedly connected by a depression beam, installation grooves are provided on both sides of the rolling mill arch, movable grooves are provided on both sides of the inner part of the rolling mill arch located at the upper end, depression screws are fixedly connected on both sides of the lower surface of the depression beam, a thrust bearing is fixedly connected to the lower end of each depression screw, two roller bearing seats are arranged in each of the installation grooves, rollers are arranged between the two roller bearing seats on the same horizontal plane, and anti-rotation mechanisms are provided on the outer walls on both sides of the rolling mill arch.
[0006] As a preferred embodiment of the utility model, each of the push-down screws is provided with a protective cover, each of the protective covers is provided with a movable hole, and two opposite sides of the two protective covers are provided with a sliding groove, and the push-down screw moves along the inner wall of the movable hole.
[0007] As a preferred embodiment of the utility model, the two thrust bearings are fixedly connected by an anti-rotation cross beam, and both ends of the anti-rotation cross beam slide along the inner wall of the slide groove.
[0008] As a preferred embodiment of the utility model, the upper surfaces of the two roller bearing seats located above are respectively fixedly connected to the lower surface of each thrust bearing, and the two roller bearing seats located below are fixedly connected to the inner wall of the mounting groove, and roller bearings are fixedly sleeved in the four roller bearing seats, and both ends of each roller are respectively fixedly connected to two roller bearings on the same horizontal plane.
[0009] As a preferred embodiment of the utility model, each of the anti-rotation mechanisms includes two installation frames, and the two installation frames are respectively fixedly installed on the front and rear sides of the rolling mill arch, and each of the installation frames has a limiting groove on the top wall and the bottom wall.
[0010] As a preferred embodiment of the utility model, two telescopic rods are fixedly installed in each installation frame, and the output ends of the two telescopic rods are commonly fixedly connected with an arc-shaped anti-rotation block, and the upper and lower ends of the inner side of the arc-shaped anti-rotation block are fixedly connected with L-shaped limit blocks, and the L-shaped limit block slides along the inner wall of the limit groove.
[0011] As a preferred embodiment of the utility model, each telescopic rod is sleeved with an anti-rotation spring, and two ends of the anti-rotation spring are respectively fixedly connected to the inner wall of the installation groove and the inner side of the arc-shaped anti-rotation block.
[0012] As a preferred embodiment of the utility model, a pressure sensor is fixedly connected in each installation frame, and a pressure push rod is fixedly connected on the inner side of each arc-shaped anti-rotation block, and the pressure push rod corresponds to the pressure sensor.
[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0014] 1. The utility model can prevent the roller from rotating during the rolling process by setting the anti-rotation mechanism, thereby ensuring the stability and accuracy of rolling. Secondly, it also plays a role in protecting the equipment and ensuring the normal production.
[0015] 2. The utility model prevents the two thrust bearings from rotating to a certain extent by setting the anti-rotation crossbeam, thereby preventing the protective cover and the rolling mill arch from being damaged by the rotation of the two thrust bearings. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;
[0017] Figure 2 It is a schematic diagram of the top view structure of the utility model;
[0018] Figure 3 For the utility model Figure 2 3D schematic diagram of the AA section structure;
[0019] Figure 4 For the utility model Figure 2 Schematic diagram of the BB section structure.
[0020] In the figure: 1. rolling mill arch; 101. mounting groove; 102. movable groove; 2. pressing beam; 3. protective cover; 301. movable hole; 302. slide groove; 4. pressing screw; 5. thrust bearing; 6. anti-rotation beam; 7. roller bearing seat; 8. roller bearing; 9. roller; 10. anti-rotation mechanism; 1001. mounting frame; 10011. limiting groove; 1002. telescopic rod; 1003. arc-shaped anti-rotation block; 1004. anti-rotation spring; 1005. L-shaped limiting block; 1006. pressure push rod; 1007. pressure sensor; 11. control module. DETAILED DESCRIPTION
[0021] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.
[0022] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.
[0023] like Figures 1 to 4 As shown, an electric depression and anti-rotation device for a hot rolling mill for plates and strips provided by an embodiment of the utility model comprises a rolling mill arch 1, a control module 11 is fixedly installed on the outer wall of the rolling mill arch 1, the upper end of the rolling mill arch 1 is fixedly connected by a depression beam 2, installation grooves 101 are opened on both sides of the rolling mill arch 1, movable grooves 102 are opened on both sides of the inner part of the rolling mill arch 1 located at the upper end, depression screws 4 are fixedly connected on both sides of the lower surface of the depression beam 2, and a thrust bearing 5 is fixedly connected to the lower end of each depression screw 4, two roller bearing seats 7 are arranged in each installation groove 101, rollers 9 are arranged between the two roller bearing seats 7 on the same horizontal plane, and anti-rotation mechanisms 10 are arranged on the outer walls on both sides of the rolling mill arch 1.
[0024] In the present application, the movement of the two pressing screws 4 is driven by pressing the cross beam 2 , and the pressing cross beam 2 is controlled by the control module 11 .
[0025] Furthermore, each pressing screw 4 is sleeved with a protective cover 3 , each protective cover 3 is provided with a movable hole 301 , and two opposite sides of the two protective covers 3 are provided with a sliding groove 302 , and the pressing screw 4 moves along the inner wall of the movable hole 301 .
[0026] In the present application, the screw 4 is pressed down to drive the two thrust bearings 5 to move downward, and the movement of the two thrust bearings 5 drives the two upper roller bearing seats 7 to move downward, thereby achieving the purpose of adjusting the distance between the two rollers 9 to suit the processing of plates and strips of different thicknesses.
[0027] Furthermore, the two thrust bearings 5 are fixedly connected via an anti-rotation cross beam 6 , and both ends of the anti-rotation cross beam 6 slide along the inner wall of the slide groove 302 .
[0028] In the present application, the provision of the anti-rotation cross beam 6 serves to prevent the two thrust bearings 5 from rotating to a certain extent, thereby preventing the two thrust bearings 5 from rotating and damaging the protective cover 3 and the rolling mill arch 1 .
[0029] Furthermore, the upper surfaces of the two roller bearing seats 7 located above are fixedly connected to the lower surface of each thrust bearing 5, respectively, and the two roller bearing seats 7 located below are fixedly connected to the inner wall of the mounting groove 101. Roller bearings 8 are fixedly sleeved in the four roller bearing seats 7, and both ends of each roller 9 are fixedly connected to two roller bearings 8 on the same horizontal plane.
[0030] In the present application, the provision of two roller bearings 8 improves the stability of the device when the two rollers 9 rotate, thereby improving the quality and efficiency of plate and strip processing.
[0031] Furthermore, each anti-rotation mechanism 10 includes two installation frames 1001 , which are respectively fixedly installed on the front and rear sides of the rolling mill arch 1 , and each installation frame 1001 has a limiting groove 10011 on the top wall and the bottom wall.
[0032] Furthermore, two telescopic rods 1002 are fixedly installed in each installation frame 1001, and the output ends of the two telescopic rods 1002 are commonly fixedly connected with an arc-shaped anti-rotation block 1003, and the upper and lower ends of the inner side of the arc-shaped anti-rotation block 1003 are fixedly connected with L-shaped limit blocks 1005, and the L-shaped limit blocks 1005 slide along the inner wall of the limit groove 10011, and each telescopic rod 1002 is sleeved with an anti-rotation spring 1004, and the two ends of the anti-rotation spring 1004 are respectively fixedly connected to the inner wall of the installation groove 101 and the inner side of the arc-shaped anti-rotation block 1003, and each installation frame 1001 is fixedly connected with a pressure sensor 1007, and each arc-shaped anti-rotation block 1003 is fixedly connected to the inner side with a pressure push rod 1006, and the pressure push rod 1006 corresponds to the pressure sensor 1007.
[0033] In the present application, during the hot rolling process, the roller 9 will be subjected to great pressure and torque. If the roller 9 rotates, it may cause equipment damage, product quality degradation, or even cause a safety accident. Therefore, when the roller 9 rotates, the roller 9 will squeeze the arc-shaped anti-rotation block 1003. At this time, the telescopic rod 1002 and the anti-rotation spring 1004 are in a compressed state, and the pressure push rod 1006 will move in the direction close to the pressure sensor 1007. When the roller 9 rotates with a large fluctuation, the pressure push rod 1006 squeezes the pressure sensor 1007 and detects the pressure value. When the pressure value is within the preset value range, the equipment operates normally. When the pressure value exceeds the preset value, the pressure sensor 1007 transmits a signal to the control module 11, and the control module 11 controls the equipment to stop running. Therefore, the setting of the anti-rotation mechanism 10 can prevent the roller 9 from rotating during the rolling process, thereby ensuring the stability and accuracy of rolling. Secondly, the setting of the anti-rotation mechanism 10 also plays a role in protecting the equipment and ensuring the normal production.
[0034] The working principle of this utility model:
[0035] Start the hot rolling mill, then place the plate and strip materials to be processed on the equipment, and then perform hot rolling on the plate and strip materials. During the hot rolling process, the roller 9 will be subjected to great pressure and torque. If the roller 9 rotates, it may cause equipment damage, product quality degradation, and even cause safety accidents. Therefore, when the roller 9 rotates, the roller 9 will squeeze the arc-shaped anti-rotation block 1003. At this time, the telescopic rod 1002 and the anti-rotation spring 1004 are in a compressed state, and the pressure push rod 1006 will move in the direction close to the pressure sensor 1007. When the roller 9 rotates with a large floating, the pressure push rod 1006 squeezes the pressure sensor 1007. At this time, the pressure sensor 1007 detects the pressure value. When the pressure value is within the preset value range, the equipment operates normally. When the pressure value exceeds the preset value, the pressure sensor 1007 transmits a signal to the control module 11, and the control module 11 controls the equipment to stop running; thereby protecting the equipment.
[0036] To sum up: this kind of electric pressing anti-rotation device for hot rolling mill of plates and strips can prevent the rollers 9 from rotating during the rolling process through the setting of the anti-rotation mechanism 10, thereby ensuring the stability and accuracy of rolling. Secondly, it also plays a role in protecting equipment and ensuring the normal production. Through the setting of the anti-rotation crossbeam 6, the two thrust bearings 5 are prevented from rotating to a certain extent, thereby preventing the rotation of the two thrust bearings 5 and damaging the protective cover 3 and the rolling mill arch 1.
[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An electric pressing down and anti-rotation device for a hot strip rolling mill, comprising a rolling mill arch (1), characterized in that: A control module (11) is fixedly mounted on the outer wall of the rolling mill arch (1); the upper end of the rolling mill arch (1) is fixedly connected via a pressing crossbeam (2); installation grooves (101) are provided on both sides of the rolling mill arch (1); movable grooves (102) are provided on both sides of the interior of the rolling mill arch (1) at the upper end; pressing screws (4) are fixedly connected on both sides of the lower surface of the pressing crossbeam (2); a thrust bearing (5) is fixedly connected to the lower end of each pressing screw (4); two roller bearing seats (7) are provided in each installation groove (101); a roller (9) is provided between the two roller bearing seats (7) on the same horizontal plane; and anti-rotation mechanisms (10) are provided on both sides of the outer walls of the rolling mill arch (1).
2. The electric pressing down and anti-rotation device for a hot strip rolling mill according to claim 1, characterized in that: Each of the pressing screws (4) is covered with a protective cover (3), each of the protective covers (3) is provided with a movable hole (301), and two opposing sides of the two protective covers (3) are provided with a sliding groove (302), and the pressing screw (4) moves along the inner wall of the movable hole (301).
3. The electric pressing down and anti-rotation device for hot strip rolling mill according to claim 2, characterized in that: The two thrust bearings (5) are fixedly connected via an anti-rotation cross beam (6), and both ends of the anti-rotation cross beam (6) slide along the inner wall of the slide groove (302).
4. The electric pressing down and anti-rotation device for a hot strip rolling mill as claimed in claim 3, characterized in that: The upper surfaces of the two roller bearing seats (7) located at the top are respectively fixedly connected to the lower surface of each thrust bearing (5), and the two roller bearing seats (7) located at the bottom are fixedly connected to the inner wall of the mounting groove (101). Roller bearings (8) are fixedly sleeved in the four roller bearing seats (7), and both ends of each roller (9) are respectively fixedly connected to two roller bearings (8) on the same horizontal plane.
5. The electric pressing down and anti-rotation device for hot strip rolling mill according to claim 1, characterized in that: Each anti-rotation mechanism (10) comprises two installation frames (1001), the two installation frames (1001) being fixedly installed on the front and rear sides of the rolling mill arch (1), respectively, and each installation frame (1001) has a limiting groove (10011) on its upper top wall and lower bottom wall.
6. The electric pressing down and anti-rotation device for a hot strip rolling mill according to claim 5, characterized in that: Two telescopic rods (1002) are fixedly installed in each installation frame (1001), and the output ends of the two telescopic rods (1002) are fixedly connected to an arc-shaped anti-rotation block (1003), and the upper and lower ends of the inner side of the arc-shaped anti-rotation block (1003) are fixedly connected to L-shaped limit blocks (1005), and the L-shaped limit blocks (1005) slide along the inner wall of the limit groove (10011).
7. The electric pressing down and anti-rotation device for hot strip rolling mill according to claim 6, characterized in that: An anti-rotation spring (1004) is sleeved on the outside of each telescopic rod (1002), and two ends of the anti-rotation spring (1004) are respectively fixedly connected to the inner wall of the installation groove (101) and the inner side of the arc-shaped anti-rotation block (1003).
8. The electric pressing down and anti-rotation device for hot strip rolling mill according to claim 7, characterized in that: A pressure sensor (1007) is fixedly connected inside each of the installation frames (1001), and a pressure push rod (1006) is fixedly connected inside each of the arc-shaped anti-rotation blocks (1003), and the pressure push rod (1006) corresponds to the pressure sensor (1007).