CN-121972516-A - Position adjusting device based on static pressure support, rolling device and adjusting method

CN121972516ACN 121972516 ACN121972516 ACN 121972516ACN-121972516-A

Abstract

The invention relates to the technical field of high-precision position adjustment, in particular to a position adjustment device based on static pressure support, a rolling device and an adjustment method, wherein a wedge device is positioned in a roll gap interval, two opposite contact surfaces of the wedge device are respectively in sliding contact with corresponding matching surfaces of two adjusting blocks, a driving mechanism is connected with the wedge device, a static pressure support structure is integrated in the adjusting blocks used in pairs, the static pressure support structure is provided with a high-pressure oil path for providing high-pressure oil for the contact surfaces of the adjusting blocks and the wedge device, static pressure lubrication is formed between the wedge device and the adjusting blocks, the implementation difficulty of high-precision position control is reduced based on the high-inclination wedge device, the static pressure oil film is built on the wedge contact surfaces by combining the static pressure support structure and the axial pressure applied by an external axial loading mechanism, the friction force of the wedge contact surfaces is reduced under the double action, the dynamic and static friction switching conditions are improved, the control precision is improved, and the control characteristics are improved.

Inventors

WANG LIPING
SUN BINGYU
WANG DINGZHU
SHI JINGHAO
GUO CAN
YANG HAILONG
DING RUQI
CHENG MIN

Assignees

江苏恒立液压科技有限公司
江苏恒立液压股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260206

Claims (13)

1. The position adjusting device based on the static pressure support is characterized by comprising: The mounting plates (1) are respectively arranged on adjacent bases in the electrode material dry rolling device; the adjusting blocks (2) are arranged in pairs and are respectively and correspondingly arranged on the mounting plate (1), and the two adjusting blocks (2) are oppositely arranged and form a roll gap distance therebetween; The oblique iron device (3) is positioned in the roll gap interval, and two opposite contact surfaces of the oblique iron device are respectively in sliding contact with corresponding matching surfaces of the two adjusting blocks (2); The driving mechanism (4) is connected with the wedge device (3) and is used for driving the wedge device (3) to move along the axial direction of the wedge device so as to adjust the distance between the two adjusting blocks (2) in a matched manner through the contact surface; a static pressure supporting structure (5) integrated in the pair of adjusting blocks (2), wherein the static pressure supporting structure (5) is provided with a high-pressure oil path for providing high-pressure oil to the contact surface of the adjusting blocks (2) and the wedge device (3) so as to form a static pressure oil film between the contact surfaces; wherein, the high-pressure oil liquid applied by the static pressure supporting structure (5) generates an axial supporting force opposite to the axial pressure acting on the regulating block (2) so as to reduce the positive pressure and friction between the contact surface and the matching surface and reduce the driving force required by the driving mechanism (4) to drive the chute device (3) to move.
2. The hydrostatic support-based position adjustment device of claim 1, wherein the hydrostatic support structure (5) comprises a pressure system and a drainage system integrated in the adjustment block (2); The pressure system comprises an oil inlet (504) formed in the matching surface of the regulating block (2), an internal pressure pipeline (511) communicated with the oil inlet (504), and an oil inlet connector (503) for connecting an external high-pressure oil source, wherein the oil inlet connector (503) is arranged on the side edge of the regulating block (2) and is communicated with the internal pressure pipeline (511); The oil drainage system comprises an oil drainage port (506) formed in the matching surface of the adjusting block (2), an internal oil drainage loop (512) communicated with the oil drainage port (506), and an oil drainage joint (505) used for connecting an oil return system, wherein the oil drainage joint (505) is arranged on the side edge of the adjusting block (2) and is communicated with the internal oil drainage loop (512); Wherein, the pressure systems of the two regulating blocks (2) are mutually communicated through a wedge oil way (513) arranged in the wedge device (3).
3. The position adjusting device based on static pressure support according to claim 2, further comprising an exhaust system, wherein the exhaust system comprises an exhaust hole (502) formed on the matching surface of the adjusting block (2), an internal exhaust pipeline communicated with the exhaust hole (502) and the internal oil drain loop (512), and an exhaust valve (501) for exhausting air, and the exhaust valve (501) is arranged on the side edge of the adjusting block (2) and is communicated with the internal exhaust pipeline; The exhaust valve (501) is a throttle valve, an electromagnetic ball valve or an exhaust pressure measuring joint.
4. The hydrostatic support-based position adjustment device of claim 2, wherein the internal oil drain circuit (512) is configured to return oil naturally or actively for recovery of leaked oil.
5. The position adjusting device based on the static pressure support according to claim 2, wherein the matching surface of the adjusting block (2) is provided with a pressure oil groove (508); The exhaust hole (502) is positioned in the upper end area of the pressure oil groove (508), and the oil inlet (504) is positioned in the middle position of the pressure oil groove (508); A clamping groove (509) is formed around the pressure oil groove (508), and a sealing ring (507) is arranged in the clamping groove (509); An oil drain groove (514) is formed around the periphery of the clamping groove (509), and the oil drain port (506) is positioned in the oil drain groove (514).
6. The position adjusting device based on the static pressure support according to claim 1 is characterized in that the mounting plate (1) is connected with the adjusting block (2) in a spherical hinge mode.
7. A rolling device is characterized by comprising: A frame (6); the base assembly is arranged in the frame (6) and comprises a plurality of bases (8) which are axially arranged; The external axial loading mechanisms (7) are arranged on two sides of the frame (6) along the axial direction, and extend out of the external axial loading mechanisms to align the base assembly so as to apply axial pressure to the base assembly; The static pressure support-based position adjusting device is arranged between adjacent bases (8) and is used for controlling the roll gap spacing in a dry rolling device by adjusting the spacing between the adjacent bases (8).
8. A method for adjusting a rolling mill according to claim 7, comprising the steps of: A static pressure establishing step of supplying high-pressure oil to a static pressure supporting structure (5) integrated in the regulating blocks (2) arranged in pairs, so that the high-pressure oil is transmitted to an internal pressure pipeline (511) of the other regulating block (2) through an internal pressure pipeline (511) of one regulating block (2) and a wedge oil path (513) in the wedge device (3), and a static pressure oil film is formed on the contact surface of the wedge device (3) and the two regulating blocks (2) at the same time; the load compensation step is to adjust the pressure of high-pressure oil to partially offset the axial pressure transmitted to the adjusting block (2) by the external axial loading mechanism (7) through the base (8) by the generated oil pressure supporting force so as to reduce the positive pressure on the contact surface; And the step of adjusting the roll gap distance, namely controlling a driving mechanism (4) to drive the wedge device (3) to axially move based on the target roll gap distance, and converting axial displacement into transverse distance change between the two adjusting blocks (2) through the inclined surface of the wedge device (3).
9. A regulating method according to claim 8, wherein in the load compensation step, the external axial loading mechanism (7) applies an axial pressure on the regulating block (2) The following relationship is satisfied: ; Wherein, the The total oil pressure of high-pressure oil liquid acting on the matching surface of the regulating block (2); Is the contact pressure between the matching surfaces of the wedge iron device (3) and the adjusting block (2).
10. An adjustment method according to claim 8, characterized in that the driving force required by the driving mechanism (4) to drive the ramp device (3) to move satisfies the following relationship: ; Wherein, the -Applying an axial pressure on the adjusting block (2) for an external axial loading mechanism (7); -a driving force applied to the driving structure (4); is the friction coefficient of the contact surface; is the slope of the inclined plane of the inclined iron device (3).
11. The method of adjusting according to claim 8, further comprising, prior to the static pressure establishing step: and the exhausting step is to open an exhaust valve (501) arranged on the regulating block (2) and exhaust the air in the pressure oil groove (508) through an internal exhaust pipeline.
12. The method of claim 8, wherein the step of adjusting the gap distance comprises a closed-loop feedback control step, and the method is characterized in that: And a closed loop feedback control step, namely detecting the displacement of the regulating block (2) or the wedge iron device (3) in real time, comparing the displacement with a target position corresponding to the target roll gap spacing, and carrying out feedback control on the driving mechanism (4) according to a comparison result.
13. The method for adjusting according to claim 8, further comprising: A cooperative decoupling control step, namely establishing a coupling relation model among all the position adjusting devices; when a roll gap spacing adjustment step is executed aiming at a target roll gap, predicting the spacing interference amount generated by the adjustment action on at least one adjacent roll gap according to a coupling relation model; Based on the interval interference quantity, a synchronous feedforward compensation instruction is sent to a position adjusting device for controlling adjacent roll gaps, so that the synchronous feedforward compensation instruction can execute compensatory roll gap interval adjustment before or when interference occurs, and therefore independent and cooperative control of a plurality of roll gap intervals is realized on a system level.

Description

Position adjusting device based on static pressure support, rolling device and adjusting method Technical Field The invention relates to the technical field of high-precision position adjustment, in particular to a position adjustment device based on static pressure support, a rolling device and an adjustment method. Background In the dry rolling process of the electrode material, an adjusting mechanism is important for realizing high-precision control of the roll gap spacing. The conventional common roller gap oil cylinder driving scheme, driving mechanism and oblique iron scheme have certain defects, and are difficult to completely meet the production requirements. Therefore, the adjusting mechanism is required to be optimally designed so as to improve the roll gap control precision and ensure the quality and stability of the electrode material during dry rolling. Several common technical schemes of the existing adjusting mechanism are as follows: 1) The driving scheme of the roll gap oil cylinder is as follows: the principle of the device is that a roll gap oil cylinder is arranged between two bearing seats, and the displacement of the roll gap oil cylinder is controlled through a servo valve, so that the roll gap adjustment with high precision is realized. However, the proposal has the defects that the gap between the rolls needs to be controlled at the micron level, and the dry method equipment adopts a multi-roll serial structure, so that the coupling interference exists between the rolls. The complicated working condition makes it difficult to meet the control requirement of high precision by means of the driving of the roll gap oil cylinder, and the quality of the rolled electrode material is unstable. 2) Driving mechanism and oblique iron scheme: the principle is that, as shown in figure 1, a highly inclined angle iron (for example, 1/50) is arranged between bearing seats, and the inclined plane principle is utilized to convert large longitudinal displacement (for example, 50 mm) into small transverse displacement (for example, 1 mm), so that the roller gap control precision is improved. However, the scheme has the defect that when the loading oil cylinder applies transverse pressure, the inclined iron surface is in surface contact with the bearing seat, so that larger friction force can be generated. In the process of adjusting the roll gap, the friction force can cause the crawling phenomenon of the adjusting mechanism, seriously affects the accuracy of roll gap control, and cannot meet the strict requirement of electrode material dry rolling on the roll gap accuracy. Disclosure of Invention The invention aims to solve the problems in the prior art in the background art, and provides a position adjusting device, a rolling device and an adjusting method based on static pressure support, wherein the position adjusting device is based on the high-inclination angle iron, reduces the difficulty of high-precision position control, combines the cooperation of a static pressure support structure, compensates and reduces the friction force of the contact surface of the angle iron device, and improves the control characteristic. The technical scheme adopted by the invention for solving the technical problems is that the position adjusting device based on the static pressure support comprises: the mounting plates are respectively arranged on adjacent bases in the electrode material dry rolling device; The adjusting blocks are arranged in pairs, directly bear the axial pressure from the mounting plate, contact with the wedge iron device and transmit force, are respectively correspondingly arranged on the mounting plate, and are oppositely arranged to form a roll gap distance therebetween; The oblique iron device is used for displacement conversion and force decomposition, is positioned in the gap interval, and two opposite contact surfaces of the oblique iron device are respectively in sliding contact with corresponding matching surfaces of two adjusting blocks, so that larger axial displacement applied by the driving mechanism is converted into tiny transverse gap change (gap change) between the adjusting blocks through an inclined surface relation, and transverse rolling force is decomposed into axial force (acting on the contact surfaces) and smaller vertical component force; the driving mechanism provides accurate motive power, is connected with the wedge device, provides accurate and controllable linear displacement by the static pressure support (such as a servo electric cylinder) after the friction resistance is greatly reduced, and is used for driving the wedge device to axially move along the wedge device so as to cooperatively adjust the distance between the two adjusting blocks through the contact surface; The static pressure supporting structure is integrated in the pair of used adjusting blocks, is provided with a high-pressure oil way and is used for providing high-pressure oil to the contact s