Roller device with vibration function

Abstract

The utility model relates to the field of roller equipment, in particular to a roller device with a vibration function, which comprises a rack, two groups of first rollers are rotatably connected on the inner side wall of the rack, two second rollers are rotatably connected in the middle of the rack, and a plurality of eccentric wheels are sleeved on the outer surfaces of the second rollers. First servo motors are fixedly arranged on the side walls, close to the second rollers, of the rack, and roller necks are fixedly arranged at the two ends of the second rollers; compared with a traditional roller device, the rotating stability of the second roller is improved through cooperation of the second roller, the first servo motor, the roller neck and the shaft head, the rotating stability of the eccentric wheel is improved through cooperation of the first notch, the eccentric wheel and the through groove, and the rotating stability of the eccentric wheel is improved through cooperation of the second roller, the eccentric wheel and the supporting table. The eccentric wheel can be driven to generate eccentric rotation, so that the eccentric wheel impacts and rolls a plate under the action of inertia and gravity, the plate rolling strength is increased, and the plate rolling quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of rolling mill equipment, and in particular to a rolling mill device with vibration function. Background Technology

[0002] Rolls are crucial components of rolling mills, and their quality and performance directly affect the production efficiency and quality of steel. A roll generally consists of three parts: the roll body, the roll neck, and the shaft end. The roll body is the working part that directly contacts the metal and performs the rolling process; the roll neck supports the roll and is mounted in bearings; and the shaft end connects to the transmission device to transmit the rolling torque.

[0003] Existing rolling mill rolls can be classified by material into cast iron rolls, cast steel rolls, and forged rolls. Cast iron rolls have lower costs and good wear resistance and thermal crack resistance; cast steel rolls have high strength and good toughness, making them suitable for high-speed, heavy-load rolling; forged rolls have a dense structure and excellent comprehensive performance, and are often used in the production of high-quality steel. Rolls play different roles in different rolling processes. During hot rolling, rolls need to withstand high temperatures and large rolling forces, requiring high heat resistance and strength.

[0004] Existing rolling mill rolls typically use their own weight to compress and deform the sheet metal. However, due to the limited size of the rolling mill rolls, this affects the rolling force and quality of the sheet metal. Utility Model Content

[0005] To overcome the problem that existing rolling mills typically use the rolls' own weight to squeeze and deform the sheet metal, which, due to the limited size of the rolls, affects the rolling force and quality of the sheet metal.

[0006] The technical solution of this utility model is as follows: a roller device with vibration function, including a frame, two sets of first rollers rotatably connected to the inner side wall of the frame, two second rollers rotatably connected to the middle of the frame, a number of eccentric wheels sleeved on the outer surface of each second roller, a first servo motor fixed on the side wall of the frame near the second rollers, roller necks fixed at both ends of each second roller, a shaft head fixed at one end of each roller neck, a number of first slots opened on the surface of the second rollers, and through slots opened on the side wall of each eccentric wheel.

[0007] Furthermore, the two second rolls are centrally symmetrically distributed, and the external dimensions of the eccentric wheels are adapted to the internal dimensions of the first groove, thereby improving the uniformity of the roll pressing.

[0008] Furthermore, the two sets of first rolls, second rolls, and support platforms are located on the same horizontal plane, and each set of first rolls contains two first rolls, which improves the stability of the conveying process.

[0009] Furthermore, support plates are movably connected to the inner sidewalls of the first slot, and the support plates are all arc-shaped.

[0010] Furthermore, a second slot is provided on the side wall of the first slot near the support plate, and an electric actuator is fixed on the inner side wall of the second slot. The output end of the electric actuator is fixed in the middle of the support plate, which improves the convenience of adjusting the amplitude of the eccentric wheel.

[0011] Furthermore, the two sets of first rolls are symmetrically distributed, and a second motor is fixed on the side wall of the frame near the first roll. The output end of the second motor is fixed to the end of the first roll in sequence.

[0012] Furthermore, the roller neck passes through the side wall of the frame in sequence, and bearings are installed on the side wall of the frame to allow the roller neck to rotate. The output end of the first servo motor is fixedly connected to the shaft head, which improves the stability of the roller neck rotation.

[0013] Furthermore, four support legs are fixed at the bottom of the frame, and the support legs are symmetrically distributed.

[0014] The beneficial effects of this utility model are:

[0015] Compared to traditional rolling mill devices, the second roll, first servo motor, roll neck, and shaft head work together to improve the stability of the second roll's rotation. The first slot, eccentric wheel, and through slot work together to improve the stability of the eccentric wheel's rotation. The second roll, eccentric wheel, and support platform work together to drive the eccentric wheel to rotate eccentrically, causing the eccentric wheel to impact and roll the sheet metal under inertia and gravity, thereby increasing the rolling force and improving the sheet metal rolling quality. Secondly, by setting up a support plate, second slot, and electric push rod, the electric push rod can drive the support plate to extend out of the second slot. The support plate's support limit is used to adjust the gap between the through slot and the second roll, thus facilitating the change of the amplitude of the eccentric wheel's eccentric vibration. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of the rolling mill assembly of this utility model. Figure 1 ;

[0017] Figure 2 The diagram shown is a schematic representation of the overall structure of this utility model. Figure 2 ;

[0018] Figure 3 The diagram shown is a schematic representation of the structure of the second roll of this utility model.

[0019] Figure 4 The diagram shown is a schematic representation of the eccentric wheel structure of this utility model.

[0020] Figure 5 The diagram shown is a cross-sectional view of the second roll of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Frame; 2. First roll; 3. Second roll; 4. Eccentric wheel; 5. First servo motor; 6. Support platform; 7. Second motor; 8. Support leg; 9. Roll neck; 10. Shaft head; 11. First slot; 12. Support plate; 13. Through slot; 14. Second slot; 15. Electric push rod. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Among the currently discovered feasible technologies, the following are described:

[0024] The roll body is the core component of the rolling mill assembly, directly contacting and rolling the metal billet. It consists of three parts: the roll body, the roll neck, and the shaft head. The roll body is the working part of the roll; its surface quality, hardness, and wear resistance directly affect the surface quality and dimensional accuracy of the steel. For example, in cold rolling thin plates, the roll body surface requires extremely high smoothness and hardness to ensure a flat and smooth surface on the rolled sheet. The roll neck supports the roll and is installed in the bearing housing. It needs sufficient strength and rigidity to withstand the enormous pressure and bending moment during the rolling process. The shaft head is connected to the transmission system to transmit torque and drive the roll rotation. Common shaft head types include spline shaft heads, universal shaft heads, and flange shaft heads.

[0025] The function of the transmission system is to transfer energy from the power source to the rolls, driving them to rotate. The transmission system mainly includes components such as a motor, coupling, reducer, gear housing, and drive shaft. The motor serves as the power source, providing the power required for rolling. The coupling connects the motor and reducer, transmitting torque and compensating for the relative displacement between the two shafts. The reducer reduces the motor speed and increases torque to meet the working requirements of the rolls. The gear housing distributes power to each roll, achieving synchronous rotation of the rolls. The drive shaft then transmits the power from the gear housing to the roll shaft head.

[0026] The rolling device is used to adjust the gap between the rolls, thereby controlling the rolling thickness of the steel. Rolling devices can be divided into manual rolling devices, electric rolling devices, and hydraulic rolling devices.

[0027] The working principle of the rolling mill is based on the theory of plastic deformation of metals. When a metal billet enters between rotating rolls, it undergoes plastic deformation under the pressure of the rolls, and its shape and size gradually change. During the rolling process, the pressure applied by the rolls to the metal billet mainly includes rolling force and friction. Rolling force is the main driving force for plastic deformation of the metal billet, and its magnitude depends on factors such as the diameter of the rolls, the rolling speed, the material of the metal, and the amount of deformation. Friction helps the metal billet enter between the rolls and, to a certain extent, affects the deformation distribution and surface quality of the metal.

[0028] With the development of the steel industry, the performance requirements for rolling mill rolls are becoming increasingly stringent. Traditional rolling mill roll materials can no longer meet production demands. In recent years, various new rolling mill roll materials have emerged, such as high-chromium cast iron, high-speed steel, semi-high-speed steel, and ceramic composite materials. High-chromium cast iron has good wear resistance and thermal crack resistance, and is widely used in hot rolling rolls. High-speed steel and semi-high-speed steel have high hardness, high wear resistance, and good toughness, and are suitable for cold rolling rolls and high-speed wire rod rolls. Ceramic composite materials have advantages such as high hardness, good wear resistance, and strong oxidation resistance, and are a new type of rolling mill roll material with great development potential.

[0029] Please refer to Figures 1-5 A vibrating roller device includes a frame 1. Two sets of first rollers 2 are rotatably connected to the inner wall of the frame 1. The first rollers 2 are for inserting sheet metal. When the first rollers 2 rotate, they generate extrusion force and friction to drive the sheet metal horizontally and simultaneously perform initial rolling. Two second rollers 3 are rotatably connected in the middle of the frame 1. Several eccentric wheels 4 are fitted on the outer surface of each second roller 3. When the second rollers 3 rotate, they drive the eccentric wheels 4 to rotate eccentrically, thereby generating vibration. First servo motors 5 are bolted to the side wall of the frame 1 near the second rollers 3. Roller necks 9 are fixed at both ends of the second rollers 3. A shaft head 10 is welded to one end of each roller neck 9. The roller necks 9 pass through the side wall of the frame 1. Bearings are installed on the side wall of the frame 1 to allow the roller necks 9 to rotate. The output ends of the first servo motors 5 are fixedly connected to the shaft heads 10. Together, they improve the stability of the rotation of the roll neck 9. The surface of the second roll 3 is provided with several first slots 11. The two second rolls 3 are centrally symmetrically distributed. The external dimensions of the eccentric wheel 4 are adapted to the internal dimensions of the first slots 11, which improves the stability of the rotation of the eccentric wheel 4. The side wall of the eccentric wheel 4 is provided with through slots 13. The through slots 13 are fitted on the outer surface of the second roll 3, driving the first servo motor 5 to drive the shaft head 10, the roll neck 9 and the second roll 3 to rotate, thereby driving the eccentric wheel 4 to generate eccentric rotation, thereby driving the eccentric wheel 4 to vibrate and impact the surface of the steel plate. The support platform 6 supports and limits the movement, increasing the rolling force of the steel plate. The first servo motor 5 is used to control the speed of the second roll 3, thereby controlling the vibration frequency of the eccentric wheel 4. The first servo motor 5 is existing technology and will not be described in detail here, thereby improving the quality of the plate rolling.

[0030] Two sets of first rolls 2, second rolls 3 and support platform 6 are located on the same horizontal plane. Each set of first rolls 2 includes two first rolls 2 to improve the stability of conveying. The two sets of first rolls 2 are symmetrically distributed. A second motor 7 is fixed on the side wall of the frame 1 near the first rolls 2. The output end of the second motor 7 is fixed to the end of the first roll 2 in sequence. Four support legs 8 are fixed at the bottom of the frame 1. The support legs 8 are symmetrically distributed.

[0031] Support plates 12 are movably connected to the inner wall of the first slot 11. The support plates 12 are all arc-shaped. The external dimensions of the support plates 12 are adapted to the internal dimensions of the second slot 14, which improves the convenience of storing the support plates 12. The first slot 11 is provided with a second slot 14 on the side wall near the support plate 12. Electric push rods 15 are fixed on the inner wall of the second slot 14. The output end of the electric push rod 15 is fixed in the middle of the support plate 12. The electric push rod 15 can drive the support plate 12 to move horizontally, thereby driving the support plate 12 to extend out of the second slot 14. The support plate 12 supports and limits the adjustment of the gap between the through slot 13 and the second roller 3, which improves the convenience of adjusting the amplitude of the eccentric wheel 4.

[0032] When using this rolling device, the operator first installs the device in the designated position, then connects an external power supply, allowing the metal steel plate to pass between a set of first rollers 2, then between the second roller 3 and the support platform 6, and finally exits through the middle of another set of first rollers 2. The second motor 7 is started to drive the two sets of first rollers 2 to rotate, causing the upper first roller 2 to rotate clockwise and the lower first roller 2 to rotate counterclockwise, thereby causing the steel plate to move horizontally under the action of friction. At the same time, preliminary rolling is achieved between the two first rollers 2. Then, the first servo motor 5 is started to drive the shaft head 10, the roller neck 9, and the second roller 3 to rotate, thereby causing the eccentric wheel 4 to rotate eccentrically, which in turn causes the eccentric wheel 4 to vibrate and impact the surface of the steel plate. The support platform 6 provides support and limit, increasing the rolling force of the steel plate. The first servo motor 5 is used to control the speed of the second roller 3, thereby controlling the vibration frequency of the eccentric wheel 4. The first servo motor 5 is existing technology and will not be described in detail here, thereby improving the quality of the plate rolling.

[0033] Also considering the different thicknesses of the plates, the support plate 12 can be moved horizontally by starting the electric push rod 15, thereby causing the support plate 12 to extend out of the second slot 14. The support plate 12 is used to adjust the gap between the through slot 13 and the second roller 3, thereby changing the amplitude of the eccentric vibration of the eccentric wheel 4.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rolling mill device with vibration function, characterized in that, The frame (1) includes two sets of first rolls (2) rotatably connected to the inner side wall of the frame (1), two second rolls (3) rotatably connected to the middle of the frame (1), several eccentric wheels (4) are fitted on the outer surface of the second rolls (3), a first servo motor (5) is fixed on the side wall of the frame (1) near the second rolls (3), roll necks (9) are fixed at both ends of the second rolls (3), a shaft head (10) is fixed at one end of the roll necks (9), several first slots (11) are opened on the surface of the second rolls (3), and through slots (13) are opened on the side wall of the eccentric wheels (4).

2. The rolling mill device with vibration function according to claim 1, characterized in that: The two second rolls (3) are centrally symmetrically distributed, and the external dimensions of the eccentric wheel (4) are adapted to the internal dimensions of the first slot (11).

3. A rolling mill device with vibration function according to claim 1, characterized in that: Two sets of first rolls (2), second rolls (3) and support platform (6) are located on the same horizontal plane, and each set of first rolls (2) contains two first rolls (2).

4. A rolling mill device with vibration function according to claim 1, characterized in that: Support plates (12) are movably connected to the inner wall of the first slot (11), and the support plates (12) are all arc-shaped.

5. A rolling mill device with vibration function according to claim 4, characterized in that: The first slot (11) has a second slot (14) on the side wall near the support plate (12). The inner side wall of the second slot (14) is fixed with an electric push rod (15). The output end of the electric push rod (15) is fixed in the middle of the support plate (12).

6. A rolling mill device with vibration function according to claim 1, characterized in that: Two sets of first rolls (2) are symmetrically distributed. A second motor (7) is fixed on the side wall of the frame (1) near the first roll (2). The output end of the second motor (7) is fixed to the end of the first roll (2) in sequence.

7. A rolling mill device with vibration function according to claim 1, characterized in that: The roller neck (9) passes through the side wall of the frame (1) in sequence. Bearings are installed on the side wall of the frame (1) to allow the roller neck (9) to rotate. The output end of the first servo motor (5) is fixedly connected to the shaft head (10).

8. A rolling mill device with vibration function according to claim 1, characterized in that: Four support legs (8) are fixed at the bottom of the frame (1), and the support legs (8) are symmetrically distributed.

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