An on-line mill roll gap adjustment device

Abstract

The utility model relates to a hydraulic transmission technical field especially a rolling mill roll gap on -line adjusting device, and the inclined iron mechanism has the inclined plane, and the inclined iron drive mechanism output end is connected with the inclined iron mechanism, is used for driving the inclined iron mechanism along the first direction movement, to make the first bearing seat and the second bearing seat through the inclined plane cooperation and approach each other or away from each other, bearing seat direct drive mechanism is used for directly driving the first bearing seat and the second bearing seat along the second direction movement, the coordinated action between the inclined iron drive mechanism and bearing seat direct drive mechanism adjusts the size of roll gap in common, and the hydraulic oil cylinder eliminates the vast majority of static friction, makes up the shortcoming that servo motor torque is small, cannot on -line adjustment roll gap, the inclined iron mechanism adopts big transmission ratio, and the big longitudinal displacement is converted into the lateral displacement of inclined iron mechanism, and the control precision of roll gap is greatly improved, and the inclined iron mechanism is the mechanical structure, and the rigidity is bigger, and makes up the deficiency such as the low control precision of roll that the hydraulic oil cylinder directly pushes the roll, roll gap jumps.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic transmission technology, and in particular to an online adjustment device for the roll gap of a rolling mill, especially for a rolling mill used to manufacture battery electrodes. Background Technology

[0002] Currently, battery electrode material production is moving towards dry process technology, which is an advanced electrode manufacturing technology. Its characteristic is that it does not use any solvents (traditional wet process uses toxic N-methylpyrrolidone, abbreviated as NMP) to prepare electrode slurry, but directly manufactures electrode films through steps such as dry powder mixing, fiber bonding and compaction.

[0003] In dry processes, the rolling mill system employs a multi-roll coordinated integrated arrangement method, such as... Figure 1 As shown, this arrangement connects all the rollers in series, meaning that any change in the position of one roller will affect the state of the others. Currently, there are no mature products available domestically. The technical challenge lies in how to control the thickness of the electrode material by adjusting the roller gap, especially achieving the target accuracy through online adjustment of the roller gap. Existing technical solutions face the following challenges: 1. Servo motor-wedge solution: Due to the limited installation space of the equipment, the torque of the servo motor is often insufficient, making it difficult to adjust the roll gap online after the equipment is pressurized. If the method of depressurizing and then adjusting the roll gap and re-pressurizing is adopted, not only is the adjustment cycle long, but the roll gap will also be changed after repressurization, making it difficult to achieve the ideal value in one go. It often requires repeated steps of depressurization and pressurization, which is inefficient. 2. Hydraulic cylinder directly drives the rollers: Because dry process equipment has a multi-roller series structure, and the roller gap control accuracy needs to reach the micron level, adjusting the gap of one roller will trigger a chain reaction of fluctuations in the entire roller system. Limited by the detection accuracy of the displacement sensor and the control accuracy of the hydraulic cylinder itself, this solution is difficult to achieve stable and precise roller gap control, and the effect is unsatisfactory. 3. Hydraulic cylinder driven wedge scheme: In this scheme, due to the compressibility of the hydraulic fluid and the friction between the moving pairs of the wedge, a creeping phenomenon will occur during the roll gap adjustment process. This makes it impossible to adjust the roll gap smoothly and continuously, affecting the accuracy and stability of the control. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in order to solve the problems existing in the prior art in the background art, to provide a rolling mill roll gap online adjustment device with small installation space, high control precision, large output force, and online adjustment of roll gap.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an online adjustment device for the roll gap of a rolling mill, used to adjust the roll gap between a first bearing seat and a second bearing seat that are arranged opposite to each other, including... The inclined plate mechanism is located between the first bearing seat and the second bearing seat and has opposing inclined surfaces. It cooperates with the first bearing seat and the second bearing seat through the inclined surfaces to convert a long stroke and small force input in one direction into a short stroke and large force output in the other direction of the bearing seat. The wedge drive mechanism provides precise and controllable longitudinal driving force and displacement for the wedge mechanism, and provides a huge locking force. Its output end is connected to the wedge mechanism to drive the wedge mechanism to move along the first direction so that the first bearing seat and the second bearing seat can move closer or further apart from each other through the inclined surface engagement. The bearing housing direct drive mechanism directly and quickly applies lateral thrust to the bearing housing to achieve rapid adjustment and dynamic compensation of the roll gap. The linear drive component acting on the first and second bearing housings is used to directly drive the first and second bearing housings to move along the second direction, with the first direction and the second direction being perpendicular to each other. The wedge drive mechanism and the bearing housing direct drive mechanism work together to adjust the size of the roll gap.

[0006] Furthermore, the wedge driving mechanism includes a driving component and a transmission mechanism, wherein the output end of the driving component is connected to the transmission mechanism; The driving component is a motor, which provides the original power required to drive the wedge mechanism. The transmission mechanism is a lead screw and nut pair.

[0007] Furthermore, the bearing housing direct drive mechanism is a hydraulic cylinder, and the number of bearing housing direct drive mechanisms is at least one.

[0008] Furthermore, the force exerted by the wedge drive mechanism is less than the static friction force of the rolling mill rolls. The force exerted by the bearing housing direct drive mechanism is less than the static friction force of the rolling mill rolls. It compensates for the large gap and pressure fluctuations when the hydraulic cylinder directly drives the roller.

[0009] Furthermore, the wedge mechanism has greater rigidity and higher precision, including... Mounting bracket for mounting the wedge drive mechanism; The inclined iron guide rail is mounted on the first bearing seat; The first wedge slider is mounted on the transmission mechanism in the wedge drive mechanism and moves in the first direction; The second inclined block is mounted on the second bearing seat; In this design, one side of the first wedge slider and one side of the wedge guide rail are in planar fit, while the other side of the first wedge slider and one side of the second wedge slider are in inclined fit. The double-sided wedges can simultaneously and synchronously drive the two bearing seats to move towards or away from each other, ensuring the stability of the roll gap centerline and forming synchronous drive.

[0010] Furthermore, the transmission ratio between the longitudinal movement distance of the first inclined block slider and the lateral movement distance of the second inclined block slider driven by the first inclined block slider is K. The transmission ratio is relatively large, which greatly improves the control accuracy of the roll gap when operating in a small space.

[0011] Furthermore, it also includes a control system that receives the roll gap setting value from the host computer or operator, and accurately calculates and synchronously controls the action sequence, speed and stroke of the wedge drive mechanism and the bearing seat direct drive mechanism according to the preset optimization logic to ensure roll gap accuracy. The control system is electrically connected to the wedge drive mechanism and the bearing seat direct drive mechanism to receive roll gap adjustment signals and control the action formation and speed of the wedge drive mechanism and the bearing seat direct drive mechanism according to the signals.

[0012] An online roll gap adjustment device for a rolling mill, used to adjust the roll gap between a first bearing seat and a second bearing seat that are arranged opposite to each other, includes: The inclined iron mechanism is disposed between the first bearing seat and the second bearing seat and has opposing inclined surfaces, which respectively cooperate with the first bearing seat and the second bearing seat through the inclined surfaces; The wedge drive mechanism has its output end connected to the wedge mechanism and is used to drive the wedge mechanism to move in a first direction so that the first bearing seat and the second bearing seat are brought closer or further apart through the inclined surface engagement.

[0013] Furthermore, the wedge driving mechanism includes a driving component and a transmission mechanism, wherein the output end of the driving component is connected to the transmission mechanism; The driving component is a hydraulic cylinder, which has a large torque and can achieve online adjustment of the roll gap in a small space; the transmission mechanism is a lead screw and nut pair.

[0014] Furthermore, there are two drive components, which are installed at both ends of the transmission mechanism.

[0015] The beneficial effects of this utility model are: 1. It overcomes the limitation of insufficient torque of traditional servo motors, and can directly and accurately adjust the roll gap under full pressure working conditions without going through the cycle of depressurization, adjustment and re-pressure building. It effectively solves the roll gap stability problem caused by multiple pressure cycles in traditional solutions, and achieves high-precision online roll gap adjustment. 2. The direct drive mechanism of the drive components and bearing housing uses hydraulic cylinders to support the roll gap and perform closed-loop pressure control. However, the force of the hydraulic cylinder is less than the static friction of the roll movement, which makes up for the shortcomings of large roll gap and pressure fluctuations when the hydraulic cylinder directly pushes the roll. 3. The hydraulic cylinder eliminates most of the static friction, compensating for the drawback of the servo motor's small torque, which makes it unable to adjust the roll gap online; 4. The inclined iron mechanism adopts a large transmission ratio, which converts the large longitudinal displacement into the lateral displacement of the inclined iron mechanism, greatly improving the control accuracy of the roll gap. Moreover, the inclined iron mechanism is a mechanical structure with greater rigidity, which makes up for the shortcomings of low control accuracy and roll gap runout caused by the direct drive of the roller by the hydraulic cylinder. 5. Online adjustment capabilities significantly shorten specification switching and process debugging time, enabling dry processing equipment to quickly respond to production needs for different thicknesses. Simultaneously, high-precision, stable control provides a reliable foundation for optimizing process parameters, which is beneficial for improving the compaction density and overall performance of electrode materials. 6. A balance between driving capability and control precision is achieved within a limited space, the mechanical structure is simpler and more compact, potential failure points are reduced, and the reliability and service life of the equipment in continuous industrial environments are improved. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the installation of rollers and hydraulic cylinders in the prior art; Figure 2 This is a schematic diagram of the structure of Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the installation of the wedge mechanism and the wedge drive mechanism in Embodiment 1 of this utility model; Figure 4 This is a perspective view of the inclined iron mechanism in Embodiment 1 of this utility model; Figure 5 In Embodiment 1 of this utility model Figure 4 A schematic diagram of the structure; Figure 6 This is a structural schematic diagram of Embodiment 2 of the present invention; Figure 7 This is a structural schematic diagram of Embodiment 3 of the present invention; Figure 8 This is a structural schematic diagram of Embodiment 4 of the present invention; Figure 9 This is a usage state diagram of Embodiment 4 of this utility model; Figure 10 This is in embodiment 4 of the present utility model. Figure 9 Top view; Figure 11This is a structural schematic diagram of Embodiment 5 of the present invention; Figure 12 This is a usage state diagram of Embodiment 5 of this utility model; In the figure: 1. First bearing housing, 2. Second bearing housing, 3. Wedge mechanism, 31. Mounting bracket, 32. Wedge guide rail, 33. First wedge slider, 34. Second wedge slider, 4. Wedge drive mechanism, 5. Bearing housing direct drive mechanism. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0019] Example 1: like Figures 2-5 As shown, an online adjustment device for the roll gap of a rolling mill is used to adjust the roll gap between a first bearing seat 1 and a second bearing seat 2 that are arranged opposite to each other, including... The wedge mechanism 3 is disposed between the first bearing seat 1 and the second bearing seat 2 and has opposing inclined surfaces. It engages with the first bearing seat 1 and the second bearing seat 2 through the inclined surfaces, and converts the linear motion in the first direction input by the wedge drive mechanism into the linear motion in the second direction of the bearing seat through the inclined surface engagement. Based on the principle of inclined planes, neglecting friction, the inclined iron mechanism 3 moves longitudinally a large distance, while the bearing housing moves laterally a smaller distance, thus amplifying the thrust. This allows the rolling force to be overcome and the bearing housing and rolls, weighing several tons, to be adjusted with a relatively small driving force.

[0020] Due to the self-locking characteristic of the inclined plane (when the angle is small enough), after the driving force is removed, the inclined iron mechanism 3 can effectively lock the bearing seat in the target position, prevent it from rolling back under the action of rolling force, and ensure the stability of the roll gap. The inclined plate drive mechanism 4 is responsible for the fine adjustment of the roll gap. Because it is driven by an inclined plane, it has a high displacement resolution and can achieve precise control of the smallest roll gap changes. In the final position, it provides a huge static locking force through the inclined plate mechanism 3 to resist the rolling force. Its output end is connected to the inclined plate mechanism 3 to drive the inclined plate mechanism 3 to move along the first direction so that the first bearing seat 1 and the second bearing seat 2 are brought closer or further apart through the inclined plate engagement. The bearing housing direct drive mechanism 5 is a linear drive component that acts on the first bearing housing 1 and the second bearing housing 2. It is used to directly drive the first bearing housing 1 and the second bearing housing 2 to move along the second direction. The first direction is set perpendicular to the second direction. When the adjustment starts, it can take the lead and overcome the static friction between the bearing housings with a strong thrust. The wedge drive mechanism 4 and the bearing housing direct drive mechanism 5 work together to adjust the size of the roll gap.

[0021] The wedge drive mechanism 4 and the bearing housing direct drive mechanism 5 constitute a closed-loop control. The wedge mechanism 3 is a rigid transmission structure. By combining the rigid transmission structure with the closed-loop control, the system fluctuations caused by the adjustment of a single roll gap are significantly reduced, enabling the entire roll system to quickly converge to a stable state, thereby ensuring the consistency of the electrode film thickness during continuous production.

[0022] like Figure 3 As shown, the wedge driving mechanism 4 includes a driving component and a transmission mechanism, and the output end of the driving component is connected to the transmission mechanism; The driving component is a motor, which is connected to the mounting bracket. The motor is directly or indirectly connected to the first wedge slider 33 through a reduction mechanism, which converts the rotational motion of the motor into the longitudinal linear motion of the wedge slider 1. The motor can be a servo motor. The transmission mechanism can be a lead screw and nut pair, or other transmission mechanisms.

[0023] like Figure 1 As shown, the bearing housing direct drive mechanism 5 is a hydraulic cylinder. There are two bearing housing direct drive mechanisms 5, which are symmetrically arranged at both ends of the roll gap between the first bearing housing 1 and the second bearing housing 2.

[0024] Among them, the force of the wedge drive mechanism 4 and the bearing seat direct drive mechanism 5 is less than the static friction force of the rolling mill roll movement; The force of the bearing housing direct drive mechanism 5 is less than the static friction force of the rolling mill roll movement.

[0025] like Figures 4-5 As shown, the wedge mechanism 3 includes Mounting bracket 31 is mounted on the first bearing seat 1 and is used to fix the driving component in the wedge drive mechanism 4. The inclined iron guide rail 32 is installed on the first bearing seat 1 and serves as the track for the sliding of the first inclined iron slider 33, so as to avoid the hydraulic cylinder from generating lateral force. The first wedge slider 33 is mounted on the transmission mechanism in the wedge drive mechanism 4 and moves in the first direction; The second inclined block slider 34 is mounted on the second bearing seat 2 and is used in conjunction with the first inclined block slider 33 to convert the longitudinal movement of the first inclined block slider 33 into the lateral movement of adjusting the roller gap. Among them, one side of the first inclined block slider 33 and one side of the inclined block guide rail 32 are in planar fit, and the other side of the first inclined block slider 33 and one side of the second inclined block slider 34 are in inclined fit.

[0026] The inclined surfaces of the first wedge slider 33 and the second wedge slider 34 can also be provided with a wear-reducing material layer or a wear-resistant structure to withstand sliding friction. After wear, they only need to be replaced, which improves the service life of the wedge mechanism and maintains accuracy. By adopting a low-friction structure and a high-rigidity wedge block structure, a smooth, continuous and linear response to the roll gap adjustment process is achieved, avoiding the adjustment lag and non-continuity problems caused by friction and pressure fluctuations in the traditional hydraulic cylinder driven wedge scheme.

[0027] The transmission ratio between the longitudinal movement distance of the first inclined block slider 33 and the lateral movement distance of the second inclined block slider 34 driven by the first inclined block slider 33 is K. That is to say, the first inclined block slider 33 and the second inclined block slider 34 have a certain inclination, i.e., the longitudinal movement distance of the inclined block slider 1 is b, and the lateral movement distance of the inclined block slider 1 driving the inclined block slider 2 is a. The value of b is N times that of a. Therefore, the control accuracy of the lateral roll gap is greatly improved. In addition, the mechanical structure of the inclined block mechanism 3 compensates for the displacement and pressure fluctuations caused by the compression of the hydraulic cylinder.

[0028] It also includes a control system, which is electrically connected to the wedge drive mechanism 4 and the bearing seat direct drive mechanism 5, for receiving roll gap adjustment signals and controlling the movement and speed of the wedge drive mechanism 4 and the bearing seat direct drive mechanism 5 according to the signals.

[0029] The first direction is the axial direction of the bearing housing that needs to be adjusted, and the second direction is the direction of movement of the wedge block.

[0030] The bearing housing direct drive mechanism 5 is installed between the first bearing housing 1 and the second bearing housing 2. The two bearing housing direct drive mechanisms 5 are symmetrically arranged at both ends of the wedge mechanism 3 to overcome most of the static friction between the two bearing housings and adjust the required force according to the roll gap.

[0031] During installation, an online adjustment device for the mill roll gap is installed between each roll gap. The static friction force is counteracted by a hydraulic cylinder, and the wedge mechanism 3 and the wedge drive mechanism 4 control the left and right adjustment of the roll gap.

[0032] Work process: Step 1: The control system receives the roll gap adjustment command; Step 2: Control the coordinated action of the wedge drive mechanism 4 and the bearing housing direct drive mechanism 5. Specifically: Step 21: The control system first sends a command to the bearing housing linear drive mechanism 5, which directly acts on the two bearing housings through the bearing housing direct drive mechanism 5, generating a second force that causes the two bearing housings to move in the first direction, pushing the roll gap to close to the target value. Step 22: Next, the control system sends a command to the wedge drive mechanism 4 to perform fine movements. The wedge drive mechanism 4 drives the wedge mechanism 3 to move. By utilizing the inclined surface cooperation between the wedge mechanism 3 and the bearing seat, the force amplification characteristic is used to generate a first force that causes the two bearing seats to move in the first direction. Through the resultant force of the first force and the second force, the bearing seats are driven to move to the target position, thereby accurately setting the roll gap size and ultimately providing a huge locking force.

[0033] Specifically, taking a=1.2mm, b=60mm, and a transmission ratio of 60 / 1.2=50 as an example: Assuming the force required to adjust the roll gap is 100 tons, the first and second oil cylinders perform closed-loop control with a force of 45 tons, meaning that the lateral force required for the inclined iron mechanism 3 and the inclined iron drive mechanism 4 is 10 tons to perform closed-loop force control.

[0034] The driving component is a motor. Considering the energy loss between the motor, the wedge mechanism 3, and the wedge drive mechanism 4, the motor rotation can exert a longitudinal force of 0.2 tons on the wedge mechanism 3, resulting in a longitudinal displacement control accuracy of 50µm. Through the amplification effect of the wedge mechanism 3, the motor can laterally push a 10-ton roller gap, with a roller gap control accuracy of 1µm.

[0035] Example 2: The difference from Embodiment 1 is that the number of bearing housing direct drive mechanisms 5 is one, and it is installed at either end of the roll gap between the first bearing housing 1 and the second bearing housing 2.

[0036] Based on Example 1, the use of the bearing housing direct drive mechanism 5 is reduced, simplifying the structure and reducing manufacturing costs and subsequent maintenance complexity.

[0037] Work process: The single bearing housing direct drive mechanism 5 acts independently on the first bearing housing 1 and the second bearing housing 2. Then, the skew block drive mechanism 4 drives the skew block mechanism 3 to move, quickly adjusting the roll gap to the target value. At this time, the two bearing housings are driven synchronously.

[0038] After adjustment, the inclined block drive mechanism 4 provides a huge main locking force, while the bearing direct drive mechanism 5 also maintains pressure, and the roll gap is adjusted together.

[0039] Example 3: The difference from Embodiment 1 is that the number of bearing housing direct drive mechanisms 5 is three or more, and they are arranged at both ends of the roll gap between the first bearing housing 1 and the second bearing housing 2 as required. The number and spacing of the bearing housing direct drive mechanisms 5 can be optimized according to the roll body length, stiffness compensation requirements and installation space, so as to further realize the precise control of the roll gap.

[0040] Example 4: like Figures 8-10 As shown, an online adjustment device for the roll gap of a rolling mill is used to adjust the roll gap between a first bearing seat 1 and a second bearing seat 2 that are arranged opposite to each other, including... The inclined iron mechanism 3 is disposed between the first bearing seat 1 and the second bearing seat 2, and has opposing inclined surfaces, which respectively cooperate with the first bearing seat 1 and the second bearing seat 2 through the inclined surfaces; The wedge drive mechanism 4, whose output end is connected to the wedge mechanism 3, is used to drive the wedge mechanism 3 to move along the first direction so that the first bearing seat 1 and the second bearing seat 2 can move closer or further apart from each other through the wedge engagement.

[0041] The wedge driving mechanism 4 includes a driving component and a transmission mechanism, wherein the output end of the driving component is connected to the transmission mechanism; The driving component is a hydraulic cylinder, and there is one hydraulic cylinder. The transmission mechanism is a lead screw and nut pair.

[0042] Work process: A driving component starts synchronously, driving the transmission mechanism; The transmission mechanism converts rotational motion into linear motion, propelling the wedge mechanism 3 to move smoothly along the first direction.

[0043] Example 5: The difference from Example 4 is that: Figures 11-12 As shown, there are two driving components, installed at both ends of the transmission mechanism. Two hydraulic cylinders are symmetrically installed at both ends of the transmission mechanism, and their output ends are connected to both ends of the transmission mechanism through couplings or other means, thereby jointly driving the same wedge mechanism 3.

[0044] This symmetrical dual-drive layout applies driving force synchronously from both ends, resulting in balanced force on the transmission mechanism and effectively eliminating off-center load torque. This significantly reduces the elastic deformation and vibration of the transmission mechanism, thereby improving the rigidity of the entire adjustment system and providing a mechanical basis for achieving higher precision roll gap control.

[0045] Meanwhile, the two drive components are kept strictly synchronized by the control system to ensure that the feed amounts at both ends of the transmission mechanism are completely consistent. This avoids the problem of asynchronous movement at both ends that may be caused by deformation of the transmission mechanism in a single drive, making the adjustment process more stable and reliable.

[0046] Moreover, if one of the drive components fails due to a fault light, the other drive component can still maintain the system operation, thereby improving the reliability and availability of the rolling mill in continuous production and avoiding a complete shutdown due to the failure of a single drive component.

[0047] Work process: The two drive components start synchronously, driving the transmission mechanism at the same speed and in the same direction; The transmission mechanism converts rotational motion into linear motion, propelling the wedge mechanism 3 to move smoothly along the first direction.

[0048] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A rolling mill roll gap online adjustment device for adjusting the roll gap between a first bearing seat (1) and a second bearing seat (2) arranged opposite to each other, characterized in that: include The inclined iron mechanism (3) is located between the first bearing seat (1) and the second bearing seat (2) and has opposite inclined surfaces, which cooperate with the first bearing seat (1) and the second bearing seat (2) respectively through the inclined surfaces; The wedge drive mechanism (4) has its output end connected to the wedge mechanism (3) and is used to drive the wedge mechanism (3) to move along the first direction so that the first bearing seat (1) and the second bearing seat (2) can move closer or further apart from each other through the wedge engagement. The bearing housing direct drive mechanism (5) is used to directly drive the first bearing housing (1) and the second bearing housing (2) to move along the second direction, wherein the first direction is perpendicular to the second direction; The wedge drive mechanism (4) and the bearing housing direct drive mechanism (5) work together to adjust the size of the roll gap.

2. The online adjustment device for rolling mill roll gap according to claim 1, characterized in that: The wedge driving mechanism (4) includes a driving component and a transmission mechanism, wherein the output end of the driving component is connected to the transmission mechanism; The driving component is a motor, and the transmission mechanism is a lead screw and nut pair.

3. The online adjustment device for rolling mill roll gap according to claim 1, characterized in that: The bearing housing direct drive mechanism (5) is a hydraulic cylinder, and the number of bearing housing direct drive mechanisms (5) is at least one.

4. The online adjustment device for rolling mill roll gap according to claim 1, characterized in that: The force of the inclined iron driving mechanism (4) is less than the static friction force of the rolling mill rolls; The force of the bearing housing direct drive mechanism (5) is less than the static friction force of the rolling mill roll movement.

5. The online adjustment device for rolling mill roll gap according to claim 1, characterized in that: The aforementioned wedge mechanism (3) includes Mounting bracket (31) is used to mount the wedge drive mechanism (4). The inclined iron guide rail (32) is mounted on the first bearing seat (1); The first wedge slider (33) is mounted on the transmission mechanism in the wedge drive mechanism (4) and moves in the first direction; The second inclined block slider (34) is mounted on the second bearing seat (2); Among them, one side of the first inclined block slider (33) and one side of the inclined block guide rail (32) are in planar fit, and the other side of the first inclined block slider (33) and one side of the second inclined block slider (34) are in inclined fit.

6. The online adjustment device for rolling mill roll gap according to claim 5, characterized in that: The transmission ratio between the longitudinal movement distance of the first inclined block (33) and the lateral movement distance of the second inclined block (34) pushed by the first inclined block (33) is K.

7. The online adjustment device for rolling mill roll gap according to claim 1, characterized in that: It also includes a control system, which is electrically connected to the wedge drive mechanism (4) and the bearing seat direct drive mechanism (5) to receive the roll gap adjustment signal and control the action formation and speed of the wedge drive mechanism (4) and the bearing seat direct drive mechanism (5) according to the signal.

8. A rolling mill roll gap online adjustment device for adjusting the roll gap between a first bearing seat (1) and a second bearing seat (2) arranged opposite to each other, characterized in that: include The inclined iron mechanism (3) is located between the first bearing seat (1) and the second bearing seat (2) and has opposite inclined surfaces, which cooperate with the first bearing seat (1) and the second bearing seat (2) respectively through the inclined surfaces; The wedge drive mechanism (4) has its output end connected to the wedge mechanism (3) and is used to drive the wedge mechanism (3) to move along the first direction so that the first bearing seat (1) and the second bearing seat (2) can move closer to or further away from each other through the wedge engagement.

9. The online adjustment device for rolling mill roll gap according to claim 8, characterized in that: The wedge driving mechanism (4) includes a driving component and a transmission mechanism, wherein the output end of the driving component is connected to the transmission mechanism; The driving component is a hydraulic cylinder, and the transmission mechanism is a lead screw and nut pair.

10. The online adjustment device for rolling mill roll gap according to claim 9, characterized in that: The number of driving components is two, which are respectively installed at both ends of the transmission mechanism.

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