CN-122007182-A - Guiding device based on hot-rolled high-grade silicon steel and hot rolling production line

CN122007182ACN 122007182 ACN122007182 ACN 122007182ACN-122007182-A

Abstract

The invention belongs to the technical field of hot rolling production, and particularly relates to a guide device based on hot-rolled high-grade silicon steel and a hot rolling production line. The pair of guide roller bodies are respectively arranged at two sides of the conveying roller body, the axial direction of the guide roller bodies is perpendicular to the axial direction of the conveying roller bodies, the pair of guide roller bodies are used for rolling contact with two side edges of the strip steel, the contact area and friction resistance are reduced, stress concentration at the edges of the strip steel is effectively avoided, the generation and expansion of edge crack defects in the hot rolling process of high-grade silicon steel are obviously restrained, and meanwhile, the pair of guide roller bodies synchronously approach or separate along the axial direction of the conveying roller bodies, so that the real-time adjustment of the guide distance is realized, and the strip steel is always in an accurate centering state in the rolling process.

Inventors

XIN SHAOHE
MA BO
Xiao zhenxing
LIAO XINYANG
DONG ZHIKUI
LIU ZHONGXIN
XU LING
ZHAO YUE
LU CHUNYU
FU HUANYU

Assignees

一重集团大连工程技术有限公司
中国第一重型机械股份公司

Dates

Publication Date: 20260512
Application Date: 20260313

Claims (10)

1. Guiding device based on hot rolling high-grade silicon steel, characterized by comprising: A conveying roller mechanism (1), wherein the conveying roller mechanism (1) is used for supporting and conveying strip steel and comprises a conveying roller body (11); the pair of guide roller bodies (2), the pair of guide roller bodies (2) are respectively arranged at two sides of the conveying roller body (11), the axial direction of the guide roller bodies (2) is perpendicular to the axial direction of the conveying roller body (11), and the pair of guide roller bodies (2) are used for rolling contact with two side edges of strip steel; the driving mechanism (3) is in transmission connection with the pair of guide roller bodies (2) and is used for driving the pair of guide roller bodies (2) to approach or depart from the conveying roller bodies (11) along the axial direction so as to adjust the distance between the pair of guide roller bodies (2).
2. Guiding device based on hot rolled high grade silicon steel according to claim 1, characterized in that the driving mechanism (3) comprises: a pair of roller frames (31); the pair of roller shafts (32) are fixedly sleeved on the pair of corresponding roller shafts (32) by the pair of guide roller bodies (2), and the roller shafts (32) are rotatably mounted on the corresponding roller frames (31) through bearings (315); And the linear driving unit is connected to the pair of roller frames (31) and is used for driving the pair of roller frames (31) to move along the axial direction of the conveying roller body (11).
3. The guide device based on hot rolled high grade silicon steel as claimed in claim 2, wherein the linear driving unit comprises: A guide rail (331), the guide rail (331) being arranged along an axial direction of the conveying roller body (11); a pair of sliding blocks (332), wherein the sliding blocks (332) are installed on the guide rail (331) in a sliding fit manner, and the sliding blocks (332) are connected with the corresponding roller frames (31); The worm (333) is arranged parallel to the guide rail (331), a first thread section and a second thread section with opposite rotation directions are arranged on a rod body of the worm (333), the first thread section is in threaded connection with one sliding block (332), and the second thread section is in threaded connection with the other sliding block (332); And the output shaft of the motor (334) is in transmission connection with one end of the worm (333).
4. A guiding device based on hot rolled high grade silicon steel as claimed in claim 3, characterized in that said linear driving unit further comprises an encoder mounted to said output shaft end of said motor (334) for detecting rotational speed and rotational angle signals of said motor (334).
5. A guiding device based on hot rolled high grade silicon steel according to claim 3, characterized in that each of said roller frames (31) comprises: A bending plate (311), wherein one end of the bending plate (311) is connected to the corresponding sliding block (332); An inner sleeve (312), wherein the inner sleeve (312) is sleeved at one end of the corresponding roller shaft (32) far away from the conveying roller body (11) through the bearing (315); the outer sleeve (313) is fixedly sleeved outside the inner sleeve (312), and the outer sleeve (313) is connected to the other end of the bending plate (311).
6. The hot rolled high grade silicon steel based guiding device as claimed in claim 5, wherein the roller housing (31) further comprises a support mounting assembly comprising: the lower end cover (3141) is covered at one end of the inner sleeve (312) close to the guide roller body (2) and is fixedly connected with the inner sleeve (312); An upper end cover (3142), wherein the upper end cover (3142) is covered at the other end of the inner sleeve (312); The positioning ring (3143) is fixedly sleeved on the roller shaft (32), and a sealing piece is arranged between the positioning ring (3143) and the upper end cover (3142); The locking nut (3144), locking nut (3144) threaded connection in the tip of roller (32) stretch out upper end cover (3142), just locking nut (3144) with be equipped with between upper end cover (3142) retaining washer (3145).
7. Guiding device based on hot rolled high grade silicon steel according to claim 2, characterized in that each guiding roll body (2) comprises: the inner roller body (21) is fixedly sleeved at one end, close to the conveying roller body (11), of the corresponding roller shaft (32); The outer roller body (22) is coaxially sleeved outside the inner roller body (21); A plurality of connecting plates (23), wherein the connecting plates (23) are axially arranged between the inner roller body (21) and the outer roller body (22) at intervals and are used for connecting the inner roller body (21) and the outer roller body (22); And a buffer layer (24), wherein the buffer layer (24) is arranged on the outer circumferential surface of the outer roller body (22).
8. The guiding device based on hot rolled high grade silicon steel as claimed in claim 1, wherein the conveying roller mechanism (1) further comprises a cooling assembly, the conveying roller body (11) is of a sleeve roller structure, a cooling runner is arranged in the conveying roller body (11), and the cooling assembly is communicated with the cooling runner and is used for water-cooling the conveying roller body (11).
9. A guiding device based on hot rolled high grade silicon steel as claimed in claim 3, further comprising a pair of frames (4), wherein the two ends of the conveying roller body (11) and the worm (333) are respectively rotatably mounted on the pair of frames (4), the frames (4) are further hinged with torque arms (41) through pin shafts, and the torque arms (41) are fixedly connected with the shell of the motor (334).
10. Hot rolling line, characterized by comprising a guide device based on hot rolled high grade silicon steel according to any one of claims 1 to 9.

Description

Guiding device based on hot-rolled high-grade silicon steel and hot rolling production line Technical Field The invention belongs to the technical field of hot rolling production, and particularly relates to a guide device based on hot-rolled high-grade silicon steel and a hot rolling production line. Background The high-grade silicon steel, especially silicon steel with high silicon content (such as 6.5 percent Si), has low iron loss, high magnetic permeability, low magnetostriction and other excellent soft magnetic properties, and becomes an indispensable core material in the fields of new energy automobile driving motors, high-efficiency energy-saving transformers, ultra-high voltage power transmission and transformation equipment and the like. As the demand for high grade silicon steel continues to grow in the high end manufacturing industry, the demands for product quality, particularly edge quality and dimensional accuracy, are also becoming increasingly stringent. However, in the production of high-grade silicon steel, particularly in the hot rolling process, due to the high content of alloy elements such as silicon, manganese, aluminum and the like, the material is easy to form ordered phases such as B2, D03 and the like in the high-temperature deformation process, so that the plasticity of the material is obviously reduced, the brittleness at room temperature is increased, and the hot rolling process window is narrow. Therefore, in the hot rolling process, the strip steel is extremely easy to have quality problems such as edge cracking, deviation, edge scratch and the like, the production efficiency and the product yield are severely restricted, and higher technical requirements are provided for a guide centering device on a hot rolling production line. At present, a common guiding centering device on a hot rolling production line mostly adopts a guiding structure that a guide plate is in surface contact with the edge of strip steel. In the hot rolling process of high-grade silicon steel, the contact mode is easy to form a stress concentration area at the edge of the strip steel, and is accompanied by sliding friction, so that the edge of the strip steel is damaged by stress, edge cracking defects are easy to induce or expand, and meanwhile, the edge of the strip steel is scratched and burrs are caused. The guide centering device usually adopts a fixed gap or a single pressure control mode to perform centering adjustment, but in the rolling process of high-grade silicon steel, the temperature and the width of the strip steel have dynamic fluctuation, and the control mode is difficult to adapt to the dynamic change, so that the problems of strip steel deviation, centering deviation and the like are caused. Disclosure of Invention The invention solves the problems that the guiding centering device in the prior art is easy to cause the side part of high-grade silicon steel to be damaged and cracked, and the centering precision is poor because the control mode is difficult to adapt to dynamic change. In order to solve the problems, the invention provides a guide device based on hot-rolled high-grade silicon steel and a hot-rolling production line. The invention relates to a guiding device based on hot-rolled high-grade silicon steel, which comprises: the conveying roller mechanism is used for supporting and conveying the strip steel and comprises a conveying roller body; The guide roller bodies are respectively arranged at two sides of the conveying roller body, the axial direction of the guide roller bodies is perpendicular to the axial direction of the conveying roller body, and the guide roller bodies are used for rolling contact with two side edges of the strip steel; The driving mechanism is in transmission connection with the pair of guide roller bodies and is used for driving the pair of guide roller bodies to approach or depart from the conveying roller bodies along the axial direction of the conveying roller bodies so as to adjust the distance between the pair of guide roller bodies. Preferably, the driving mechanism includes: a pair of roller frames; The pair of roller shafts are fixedly sleeved on the pair of corresponding roller shafts, and the roller shafts are rotatably installed on the corresponding roller frames through bearings; And the linear driving unit is connected to the pair of roller frames and used for driving the pair of roller frames to move along the axial direction of the conveying roller body. Preferably, the linear driving unit includes: the guide rail is arranged along the axial direction of the conveying roller body; The pair of sliding blocks are installed on the guide rail in a sliding fit manner, and the pair of sliding blocks are connected with the corresponding pair of roller frames; The worm is parallel to the guide rail, a first thread section and a second thread section with opposite rotation directions are arranged on a rod body of the worm, the first thread se