Hydraulic dismounting device for roller bearing seat and pressure adjusting method

Abstract

The invention discloses a hydraulic dismounting device for a roller bearing seat and a pressure adjusting method. Comprising a scissor-fork type lifting platform, a pulling mechanism arranged on the scissor-fork type lifting platform, a first side jacking mechanism arranged on the scissor-fork type lifting platform and used for jacking the side face of a rolling mill, and a second side jacking mechanism arranged on the scissor-fork type lifting platform and used for jacking a bearing. When the bearing seat is disassembled, the scissor-type lifting platform is moved to the side face of the rolling mill, the height of the scissor-type lifting platform is adjusted, the second side jacking mechanism abuts against the bearing, the first side jacking mechanism abuts against the side face of the rolling mill, the bearing seat is disassembled through the pulling mechanism, operation is easy and convenient, and the pulling mechanism adopts a hydraulic cylinder as power. The bearing pedestal with large friction force can be disassembled, and disassembly is reliable.

Description

Technical Field

[0001] The invention relates to the field of roller bearing disassembly and assembly, in particular to a roller bearing seat hydraulic disassembly device and a pressure adjustment method. Background Art

[0002] Rolling mill is a device used to roll steel. Roller is an important part of the rolling mill, which is in direct contact with the steel billet. Bearing seats are set at both ends of the roll. Roller can be reused after grinding. Before grinding, the bearing seats at both ends need to be removed.

[0003] In the prior art, the roller bearing seat is disassembled through a disassembly and assembly platform, and disassembly trolleys are provided on both sides of the disassembly and assembly platform to provide pulling force for disassembly of the bearing seat. The roller bearing seat is matched with the roller through the bearing, and the match is tight in the actual process, making it difficult to disassemble. The disassembly and assembly trolley provided by the manufacturer cannot complete the disassembly of the bearing seat. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned problem and to provide a hydraulic disassembly device for a roller bearing seat and a pressure adjustment method.

[0005] The technical solution adopted by the present invention to solve the technical problem is:

[0006] A hydraulic disassembly device for a roller bearing seat, comprising a scissor-type lifting platform, a pulling mechanism arranged on the scissor-type lifting platform, a first side-pushing mechanism arranged on the scissor-type lifting platform for supporting the side of a rolling mill, and a second side-pushing mechanism arranged on the scissor-type lifting platform for supporting the bearing;

[0007] The pulling mechanism includes a moving frame arranged at the upper end of the scissor lift platform and moving on the scissor lift platform, a first hydraulic cylinder arranged on the scissor lift platform to drive the moving frame to move left and right, and a steel wire rope symmetrically arranged on the moving frame, and a hook is provided at the end of the steel wire rope;

[0008] The first side lift mechanism comprises a second hydraulic cylinder arranged on the side of the scissor lift platform and a lift plate arranged at the end of the piston rod of the second hydraulic cylinder;

[0009] Furthermore, the second side lifting mechanism includes a lifting head arranged on the side of the scissor-type lifting platform.

[0010] Furthermore, the bottom of the scissor-type lifting platform is provided with walking wheels.

[0011] Furthermore, a fixed frame is provided at the upper end of the scissor-type lifting platform, the movable frame moves in the fixed frame, the second hydraulic cylinder is symmetrically arranged on the left side of the fixed frame, and the top head is arranged in the middle position of the left side of the fixed frame.

[0012] Furthermore, a guide rod is provided in the fixed frame, and guide sleeves cooperating with the guide rod are provided at both ends of the movable frame.

[0013] Furthermore, a method for adjusting the hydraulic disassembly pressure of a roller bearing seat, using the disassembly device, is characterized in that it comprises the following steps:

[0014] a. Obtaining the matching surface data of the bearing seat and the roller, wherein the matching surface data includes the degree of rust on the matching surface, the distribution of foreign matter and the matching clearance;

[0015] b. calculating the initial tension using a preset algorithm based on the mating surface data to avoid stress concentration or disassembly failure;

[0016] c. According to the initial tensile force, combined with the bearing seat wall thickness distribution and the opening position, the tensile force uniformity parameter is corrected;

[0017] d. applying the pulling force by a hydraulic system and ensuring the stability of the pulling force by real-time control of the extension and retraction speed of the hydraulic cylinder;

[0018] e. During the tensile force application process, real-time monitoring of stress changes on the mating surface is performed to determine whether stress concentration occurs;

[0019] f. If stress concentration is detected, the direction or speed of applying the tension is adjusted to reduce the local stress peak;

[0020] g. continuing to apply the tension according to the adjusted tension parameter until the bearing seat is completely separated from the roller;

[0021] h. Record key parameters in the process of applying the tension, including the magnitude, speed and duration of the tension, and form a data report.

[0022] Further, step b mainly includes the following steps:

[0023] Acquire mating surface data, and extract key values ​​from the mating surface data;

[0024] Based on the extracted key values, the initial force magnitude is calculated using a preset algorithm;

[0025] Determining whether the initial force exceeds a preset range, and if so, adjusting the parameters of the preset algorithm to recalculate the initial force;

[0026] According to the recalculated initial force, determine whether the stress value meets the preset requirements;

[0027] If the stress value meets the preset requirement, it is further determined whether the degree of disassembly is within the allowable range;

[0028] Based on the judgment results, determine the target initial tension to avoid stress concentration or disassembly failure.

[0029] Furthermore, step c mainly includes the following steps:

[0030] Get the initial force value, combine the wall thickness distribution map and the hole position map, and calculate the distribution of the tensile force value in different areas;

[0031] If the tension value exceeds the preset threshold in a specific area, the adjustment correction value is determined based on the wall thickness distribution and hole position;

[0032] The parameter set is updated by adjusting the correction value, and the uniformity of the tension distribution is recalculated to obtain the corrected tension distribution result;

[0033] By comparing the tension distribution diagram with the hole position diagram, it is determined whether the correction value meets the uniformity requirement;

[0034] If the uniformity does not meet the preset standard, the relationship between the initial force and the wall thickness value is adjusted and the parameter set is updated;

[0035] According to the updated parameter set, the distribution of tension values ​​is repeatedly calculated until the optimal result that meets the uniformity requirement is obtained.

[0036] Further, step h mainly includes the following steps:

[0037] Acquiring real-time data during the tension application process, wherein the real-time data includes tension value, speed value and time value;

[0038] Based on the real-time data, a preset algorithm is used to analyze the stability of the tension application process to obtain a stability analysis result;

[0039] Determining whether the stability analysis result exceeds a preset threshold, and if so, adjusting a control parameter of the mechanical device or the hydraulic system to obtain an adjusted control parameter;

[0040] According to the adjusted control parameters, the tension value, speed value and time value are re-acquired to obtain recorded data;

[0041] Comparing the recorded data with a preset target value to obtain a comparison result;

[0042] According to the comparison result, judging whether the disassembly efficiency requirement is met;

[0043] If yes, a final data report is generated; if no, the process returns to the step of adjusting the control parameters of the mechanical device or hydraulic system until the disassembly efficiency requirement is met.

[0044] The beneficial effects of the present invention are:

[0045] 1. The present invention comprises a scissor-type lifting platform, a pulling mechanism arranged on the scissor-type lifting platform, a first side pushing mechanism arranged on the scissor-type lifting platform to support the side of the rolling mill, and a second side pushing mechanism arranged on the scissor-type lifting platform to support the bearing; when disassembling the bearing seat, the scissor-type lifting platform is moved to the side of the rolling mill, and the height of the scissor-type lifting platform is adjusted so that the second side pushing mechanism supports the bearing, and the first side pushing mechanism supports the side of the rolling mill, and the pulling mechanism disassembles the bearing seat, the operation is simple and convenient, the pulling mechanism adopts a hydraulic cylinder as a power, and can realize the disassembly of the bearing seat with a large friction force, and the disassembly is reliable.

[0046] 2. The present invention uses a hydraulic system to apply tension and controls the extension and retraction speed of the hydraulic cylinder in real time to ensure the stability of the tension. During the disassembly process, the present invention continuously monitors the stress changes of the mating surface. Once stress concentration is detected, the tension application speed is immediately adjusted to reduce the local stress peak. By precisely controlling the size and duration of the tension, unnecessary damage to the bearing seat during the disassembly process is effectively avoided, while significantly improving the disassembly efficiency. Finally, the present invention records the key parameters in the disassembly process and forms a data report to provide a reference for subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0048] Figure 1 It is a schematic diagram of the structure of the present invention;

[0049] Figure 2 A top view of the present invention;

[0050] Figure 3 This is a flow chart of the pressure adjustment method of the present invention.

[0051] In the figure: scissor-type lifting platform 1, mobile frame 2, first hydraulic cylinder 3, wire rope 4, hook 5, second hydraulic cylinder 6, top plate 7, top head 8, walking wheel 9, fixed frame 10, guide rod 11, guide sleeve 12. DETAILED DESCRIPTION

[0052] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0053] like Figure 1 and Figure 2 As shown, a hydraulic disassembly device for a roller bearing seat comprises a scissor-type lifting platform 1, a pulling mechanism arranged on the scissor-type lifting platform 1, a first side pushing mechanism arranged on the scissor-type lifting platform 1 to support the side of the rolling mill, and a second side pushing mechanism arranged on the scissor-type lifting platform 1 to support the bearing; when disassembling the bearing seat, the scissor-type lifting platform 1 is moved to the side of the rolling mill, and the height of the scissor-type lifting platform 1 is adjusted so that the second side pushing mechanism supports the bearing, and the first side pushing mechanism supports the side of the rolling mill, and the pulling mechanism disassembles the bearing seat, and the operation is simple and convenient. The pulling mechanism adopts a hydraulic cylinder as power, which can realize the disassembly of the bearing seat with large friction force, and the disassembly is reliable.

[0054] like Figure 1 As shown, the pulling mechanism includes a mobile frame 2 arranged at the upper end of the scissors-type lifting platform 1 and moving on the scissors-type lifting platform 1, a first hydraulic cylinder 3 arranged on the scissors-type lifting platform 1 to drive the mobile frame 2 to move left and right, and a wire rope 4 symmetrically arranged on the mobile frame 2, and a hook 5 is provided at the end of the wire rope 4; when disassembling the bearing seat, the piston rod of the first hydraulic cylinder 3 extends out and hooks the bearing seat through the hook 5 at the end of the wire rope 4, and the piston rod of the first hydraulic cylinder 3 is retracted, and the bearing seat is disassembled by the pulling force generated by the hydraulic cylinder.

[0055] like Figure 1 As shown, the first side push mechanism includes a second hydraulic cylinder 6 arranged on the side of the scissor-type lifting platform 1 and a top plate 7 arranged at the end of the piston rod of the second hydraulic cylinder 6. The top plate 7 is a right angle when viewed from the side, and clamps the bottom of the side bracket of the rolling mill to prevent the scissor-type lifting platform 1 from moving or tilting; when the piston rod of the first hydraulic cylinder 3 contracts, the top plate 7 supports the side of the rolling mill to prevent the scissor-type lifting platform 1 from moving.

[0056] like Figure 1 As shown, the second side push mechanism includes a push head 8 arranged on the side of the scissor-type lifting platform 1. When the piston rod of the first hydraulic cylinder 3 contracts, the push head 8 pushes against the bearing to prevent the bearing from being damaged by force.

[0057] like Figure 1 As shown, the bottom of the scissor-type lifting platform 1 is provided with walking wheels 9 to facilitate the movement of the scissor-type lifting platform 1.

[0058] like Figure 1 and Figure 2 As shown, a fixed frame 10 is provided at the upper end of the scissor-type lifting platform 1, the mobile frame 2 moves in the fixed frame 10, the second hydraulic cylinder 6 is symmetrically arranged on the left side of the fixed frame 10, and the top head 8 is arranged in the middle position of the left side of the fixed frame.

[0059] like Figure 1 As shown, a guide rod 11 is provided in the fixed frame 10 , and guide sleeves 12 cooperating with the guide rod 11 are provided at both ends of the movable frame 2 .

[0060] like Figure 3 As shown, a method for adjusting the hydraulic disassembly pressure of a roller bearing seat, using the disassembly device, includes the following steps: a. Obtaining the matching surface data of the bearing seat and the roller, the matching surface data including the degree of rust on the matching surface, the distribution of foreign matter and the matching clearance.

[0061] b. Based on the mating surface data, a preset algorithm is used to calculate the initial tensile force to avoid stress concentration or disassembly failure.

[0062] Step b mainly includes the following steps: obtaining mating surface data, extracting key values ​​from the mating surface data; calculating the initial force size using a preset algorithm based on the extracted key values; judging whether the initial force size exceeds a preset range, and if so, adjusting the parameters of the preset algorithm and recalculating the initial force size; judging whether the stress value meets the preset requirements based on the recalculated initial force size; if the stress value meets the preset requirements, further judging whether the disassembly degree is within the allowable range; and determining the target initial tension to avoid stress concentration or disassembly failure based on the judgment result.

[0063] The mating surface data refers to the geometric and physical characteristics of the contact surface of two parts in mechanical design. The extracted key values ​​may include the area, roughness, material properties, etc. of the mating surface. The preset algorithm calculates the initial force size based on these key values ​​to estimate the initial force applied to the mating surface. For example, for the installation of a bearing with an interference fit, the required press-fitting force can be calculated based on the interference amount and the elastic modulus of the material. The determination of whether the initial force size exceeds the preset range is to ensure the rationality of the calculation result. If it exceeds the range, the algorithm parameters need to be adjusted and recalculated. This process is similar to the iterative method commonly used in engineering, which approximates reasonable results through multiple adjustments. The stress value is determined to ensure that the parts will not be permanently deformed or damaged during the assembly process. Taking the bearing press-fit as an example, it is necessary to ensure that the stress of the shaft and the bearing seat does not exceed the yield strength of their respective materials. If the bearing seat is made of cast iron, its stress should be controlled below 200 MPa. The determination of the degree of disassembly takes into account the need for future maintenance or replacement. A specific standard may be that the disassembly force does not exceed 1.5 times the press-fitting force. The final target initial tensile force needs to avoid stress concentration and disassembly difficulties while ensuring assembly quality. This process embodies the art of balance in mechanical design, which requires comprehensive consideration of multiple factors. For example, for a bearing fit in a precision instrument that needs to be frequently disassembled and assembled, a smaller interference may be selected, sacrificing some assembly tightness in exchange for better disassembly performance. The whole process embodies the iterative optimization idea in mechanical design. Through multiple calculations and judgments, a solution that meets multiple requirements is finally obtained. This method is not only applicable to bearing press-fitting, but can also be extended to other mechanical assembly problems, such as gear assembly, bolt connection, etc. Through this systematic approach, the quality and reliability of mechanical assembly can be effectively improved, the service life of equipment can be extended, and maintenance costs can be reduced.

[0064] c. According to the initial tensile force, combined with the bearing seat wall thickness distribution and the hole position, the tensile force uniformity parameter is corrected.

[0065] Specifically, it mainly includes obtaining the initial force value, combining the wall thickness value distribution map and the hole position map, and calculating the distribution of the tension value in different areas; if the tension value in a specific area exceeds the preset threshold, the adjustment correction value is determined according to the wall thickness distribution and the hole position; the parameter set is updated with the adjusted correction value, and the uniformity of the tension distribution is recalculated to obtain the corrected tension distribution result; by comparing the tension distribution map with the hole position map, it is judged whether the correction value meets the uniformity requirement; if the uniformity does not meet the preset standard, the relationship between the initial force and the wall thickness value is adjusted, and the parameter set is updated; according to the updated parameter set, the tension value distribution is repeatedly calculated until the optimal result that meets the uniformity requirement is obtained.

[0066] Obtaining the initial force value is the starting point of the whole process. This value may come from the calculation results of the previous step, such as the initial tensile force obtained based on the mating surface data and the preset algorithm. Next, it is necessary to combine the wall thickness value distribution map and the hole location map to analyze the distribution of tensile values ​​in different areas. The wall thickness value distribution map reflects the thickness changes in various parts of the component, which has a direct impact on the tensile force distribution. For example, in a cylindrical container, if the bottom wall is thicker and the top is thinner, then under the same tensile force, a greater stress concentration may occur at the top. The hole location map shows the location of each hole on the component. These holes will cause local stress concentration and require special attention. When calculating the tensile force distribution, it may be found that the tensile force value in some areas exceeds the preset threshold. For example, assuming that the set safety threshold is 100MPa, but the stress value calculated in the area around the hole reaches 120MPa. At this time, it is necessary to determine the adjustment correction value based on the wall thickness distribution and the hole location. The determination of the adjustment correction value is a delicate process. It may be found that increasing the wall thickness by 10% near the hole can effectively reduce the local stress. Alternatively, it may be necessary to add reinforcement structures around high stress areas, such as stiffeners or thickening rings. These corrections are used to update the parameter set and then recalculate the uniformity of the tensile force distribution. The corrected tensile force distribution results need to be compared with the tensile force distribution map to determine whether they meet the uniformity requirements. Uniformity here does not mean that the stress distribution is equal everywhere, but that the stress distribution fluctuates within a reasonable range without obvious stress concentration points. For example, the overall stress may be allowed to fluctuate between 80-100MPa, but local stress concentrations exceeding 110MPa are not allowed. If the uniformity does not meet the preset standard, the relationship between the initial force and the wall thickness value needs to be adjusted. This may involve changing the direction, magnitude, or distribution of the applied force. For example, it may be found that changing the single-point force to a multi-point distributed force can significantly improve the uniformity of the stress distribution. Alternatively, it may be necessary to redesign the shape of the component, such as changing a right-angle transition to a rounded transition, to reduce stress concentration. This process is iterative, and the parameter set is continuously updated and the tensile force value distribution is repeatedly calculated until the optimal result that meets the uniformity requirements is obtained. This method can not only avoid material failure caused by excessive local stress, but also ensure that the entire component is evenly stressed, improving overall performance and service life. Through this fine analysis and adjustment, the bearing capacity of the component can be maximized while ensuring safety, achieving optimized design of materials and structures.

[0067] d. The pulling force is applied by a hydraulic system, and the stability of the pulling force is ensured by real-time control of the extension and retraction speed of the hydraulic cylinder.

[0068] The real-time status data of the hydraulic cylinder is obtained, and the current tension value is calculated in combination with the preset hydraulic system working parameters; if the current tension value deviates from the preset threshold value, the extension and retraction speed of the hydraulic cylinder is adjusted to correct the tension value; according to the corrected tension value, combined with the pre-established wall thickness value distribution map and the hole position map, it is judged whether the tension distribution is uniform; if the tension distribution does not reach the preset uniformity threshold, the hydraulic system working parameter set is updated, and the tension is re-applied using the updated parameter set, until it is judged that the uniformity of the tension distribution meets the requirements, and then the final hydraulic system parameter set is determined to achieve tension stability control.

[0069] e. During the tensile force application process, the stress changes on the mating surfaces are monitored in real time to determine whether stress concentration occurs.

[0070] The tensile force value during the application process is obtained, and the stress value of the mating surface is collected through the preset sensor. According to the stress value collected in real time, the stress change at adjacent time points is calculated. If the stress change exceeds the preset threshold, the time point is marked as a potential stress concentration point. The stress value at the marked time point is extracted, and the difference between it and the stress value of the surrounding area is calculated. According to the difference result, the existence of the stress concentration phenomenon is determined. The machine learning algorithm is used to train the historical stress concentration phenomenon and establish a stress concentration prediction model. The real-time monitoring data is processed by the prediction model to obtain the stress concentration trend analysis results.

[0071] f. If stress concentration is detected, the direction or speed of applying the tension is adjusted to reduce the local stress peak.

[0072] Obtain the stress value in the stress concentration area. If the stress value exceeds the preset threshold, adjust the direction value or speed value of the tension value. Recalculate the distribution of the tension value in the stress concentration area based on the adjusted direction value or speed value. Use a mechanical device or hydraulic system to apply tension according to the calculated tension value and record the time value of the tension value. Monitor the damage value of the bearing seat during the application of the tension value. If the damage value exceeds the preset range, adjust the magnitude value of the tension value. By real-time monitoring of the changes in the stress value, determine whether the tension value meets the requirements for disassembling the bearing seat. If the tension value meets the requirements, continue to apply tension according to the preset time value until the bearing seat is disassembled. According to the efficiency value during the disassembly process, optimize the direction value, speed value, magnitude value and time value of the tension value to form a standard disassembly plan.

[0073] g. Continue to apply the tension according to the adjusted tension parameters until the bearing seat is completely separated from the roller.

[0074] According to the preset tension parameters, the current tension value is obtained and it is judged whether it reaches the preset threshold value. If not, the tension is continuously applied until the condition is met. A mechanical device or hydraulic system is used to monitor the tension in real time, and the tension value change curve is obtained and compared with the preset curve to determine whether there is abnormal fluctuation. During the tension application process, the separation point position data of the bearing seat and the roller is obtained to determine whether the separation point reaches the preset position. According to the separation point position data, the duration of the tension application is adjusted, the separation completion status is obtained and it is determined whether it is completely separated. After the separation is completed, the surface damage degree data of the bearing seat is obtained to determine whether the damage is within the preset range. The tension value, separation point position, and damage degree data are input into the pre-established disassembly efficiency evaluation model to obtain the disassembly efficiency score. According to the disassembly efficiency score, the tension parameters are optimized and stored in the preset database for parameter adjustment in the subsequent disassembly process.

[0075] h. Record key parameters in the process of applying the tension, including the magnitude, speed and duration of the tension, and form a data report.

[0076] Real-time data during the tension application process is obtained, and the real-time data includes tension value, speed value and time value; for the real-time data, a preset algorithm is used to analyze the stability of the tension application process to obtain a stability analysis result; it is determined whether the stability analysis result exceeds a preset threshold value, and if so, the control parameters of the mechanical device or hydraulic system are adjusted to obtain the adjusted control parameters; according to the adjusted control parameters, the tension value, speed value and time value are re-obtained to obtain recorded data; the recorded data is compared with the preset target value to obtain a comparison result; according to the comparison result, it is determined whether the disassembly efficiency requirement is met; if so, a final data report is generated; if not, the step of adjusting the control parameters of the mechanical device or hydraulic system is returned until the disassembly efficiency requirement is met.

[0077] During the disassembly of the roller bearing seat, the acquisition and analysis of real-time data is crucial. The tension value reflects the magnitude of the force applied to the bearing seat, the speed value indicates how fast the bearing seat moves, and the time value records the duration of the entire process. Together, these data constitute the dynamic characteristics of the disassembly process. The preset algorithm can use a variety of methods to analyze the stability of the tension application process. For example, the sliding window method can be used to calculate the standard deviation of the tension value. If the standard deviation exceeds the preset threshold, the tension application is considered unstable. Another method is to analyze the spectral characteristics of the tension value through Fourier transform to determine whether there is abnormal vibration. When the stability analysis result exceeds the preset threshold, the control parameters need to be adjusted in time. For mechanical devices, it may involve adjusting the motor speed or gear ratio; for hydraulic systems, it may be necessary to adjust the oil pump output pressure or hydraulic valve opening. These adjustments are intended to make the disassembly process smoother and reduce damage to the bearing seat and roller. The comparison of the recorded data retrieved after adjustment with the preset target value can use statistical indicators such as root mean square error (RMSE). For example, if the RMSE of the tension value is less than 1kN, the RMSE of the velocity value is less than 0.1mm / s, and the time value is within the expected range, it can be considered that the disassembly efficiency requirements are met. The criteria for judging the disassembly efficiency requirements may include multiple aspects. The first is time efficiency, that is, whether the disassembly process is completed within the specified time. The second is quality efficiency, including whether the bearing seat and the roller surface are damaged, whether the separation is thorough, etc. The third is energy efficiency, that is, whether the energy consumption of the entire process is within a reasonable range. Only when these requirements are met at the same time can it be considered that the expected disassembly efficiency has been achieved. The generation of the final data report is a summary and archive of the entire process. The report should include the key parameters of the disassembly process, stability analysis results, parameter adjustment records, and the final disassembly efficiency indicators achieved. This report is not only a record of this disassembly work, but also provides valuable reference data for similar work in the future. In this way, the intelligent and refined management of the roller bearing seat disassembly process can be achieved. Real-time data collection and analysis can detect problems in a timely manner, dynamic adjustment ensures the stability and efficiency of the disassembly process, and the final data report provides a basis for continuous improvement. This closed-loop optimization mechanism not only improves the quality and efficiency of a single disassembly, but also continuously optimizes the performance of the entire disassembly system by accumulating experience.

[0078] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "left", "right", "up", "down", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0079] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection, it can be a direct connection, it can be an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A hydraulic disassembly device for a roller bearing seat, characterized in that: It comprises a scissor-type lifting platform (1), a pulling mechanism arranged on the scissor-type lifting platform (1), a first side-supporting mechanism arranged on the scissor-type lifting platform (1) for supporting the side of the rolling mill, and a second side-supporting mechanism arranged on the scissor-type lifting platform (1) for supporting the bearing; The pulling mechanism comprises a moving frame (2) arranged at the upper end of the scissor-type lifting platform (1) and moving on the scissor-type lifting platform (1), a first hydraulic cylinder (3) arranged on the scissor-type lifting platform (1) and driving the moving frame (2) to move left and right, and a steel wire rope (4) symmetrically arranged on the moving frame (2), wherein a hook (5) is provided at the end of the steel wire rope (4); The first side lift mechanism comprises a second hydraulic cylinder (6) arranged on the side of the scissor-type lifting platform (1) and a lift plate (7) arranged at the end of the piston rod of the second hydraulic cylinder (6); The second side lifting mechanism comprises a lifting head (8) arranged on the side of the scissor-type lifting platform (1).

2. A hydraulic disassembly device for a roller bearing seat as claimed in claim 1, characterized in that: The bottom of the scissor-type lifting platform (1) is provided with walking wheels (9).

3. A hydraulic disassembly device for a roller bearing seat according to claim 1, characterized in that: A fixed frame (10) is provided at the upper end of the scissor-type lifting platform (1), the movable frame (2) moves in the fixed frame (10), the second hydraulic cylinder (6) is symmetrically arranged on the left side of the fixed frame (10), and the top head (8) is arranged in the middle position of the left side of the fixed frame.

4. A hydraulic disassembly device for a roller bearing seat as claimed in claim 3, characterized in that: A guide rod (11) is provided in the fixed frame (10), and guide sleeves (12) matching with the guide rod (11) are provided at both ends of the movable frame (2).

5. A method for adjusting the hydraulic disassembly pressure of a roller bearing seat, using the disassembly device according to any one of claims 1 to 4, characterized in that: The following steps are involved: a. Obtaining the matching surface data of the bearing seat and the roller, wherein the matching surface data includes the degree of rust on the matching surface, the distribution of foreign matter and the matching clearance; b. calculating the initial tension using a preset algorithm based on the mating surface data to avoid stress concentration or disassembly failure; c. According to the initial tensile force, combined with the bearing seat wall thickness distribution and the opening position, the tensile force uniformity parameter is corrected; d. applying the pulling force by a hydraulic system and ensuring the stability of the pulling force by real-time control of the extension and retraction speed of the hydraulic cylinder; e. During the tensile force application process, real-time monitoring of stress changes on the mating surface is performed to determine whether stress concentration occurs; f. If stress concentration is detected, the direction or speed of applying the tension is adjusted to reduce the local stress peak; g. continuing to apply the tension according to the adjusted tension parameter until the bearing seat is completely separated from the roller; h. Record key parameters in the process of applying the tension, including the magnitude, speed and duration of the tension, and form a data report.

6. A method for adjusting the hydraulic disassembly pressure of a roller bearing seat as claimed in claim 5, characterized in that: Step b mainly includes the following steps: Acquire mating surface data, and extract key values ​​from the mating surface data; Based on the extracted key values, the initial force magnitude is calculated using a preset algorithm; Determining whether the initial force exceeds a preset range, and if so, adjusting the parameters of the preset algorithm to recalculate the initial force; According to the recalculated initial force, determine whether the stress value meets the preset requirements; If the stress value meets the preset requirement, it is further determined whether the degree of disassembly is within the allowable range; Based on the judgment results, determine the target initial tension to avoid stress concentration or disassembly failure.

7. A method for adjusting the hydraulic disassembly pressure of a roller bearing seat as claimed in claim 5, characterized in that: Step c mainly includes the following steps: Get the initial force value, combine the wall thickness distribution map and the hole position map, and calculate the distribution of the tensile force value in different areas; If the tension value exceeds the preset threshold in a specific area, the adjustment correction value is determined based on the wall thickness distribution and hole position; The parameter set is updated by adjusting the correction value, and the uniformity of the tension distribution is recalculated to obtain the corrected tension distribution result; By comparing the tension distribution diagram with the hole position diagram, it is determined whether the correction value meets the uniformity requirement; If the uniformity does not meet the preset standard, the relationship between the initial force and the wall thickness value is adjusted and the parameter set is updated; According to the updated parameter set, the distribution of tension values ​​is repeatedly calculated until the optimal result that meets the uniformity requirement is obtained.

8. A method for adjusting the hydraulic disassembly pressure of a roller bearing seat as claimed in claim 5, characterized in that: Step h mainly includes the following steps: Acquiring real-time data during the tension application process, wherein the real-time data includes tension value, speed value and time value; Based on the real-time data, a preset algorithm is used to analyze the stability of the tension application process to obtain a stability analysis result; Determining whether the stability analysis result exceeds a preset threshold, and if so, adjusting a control parameter of the mechanical device or the hydraulic system to obtain an adjusted control parameter; According to the adjusted control parameters, the tension value, speed value and time value are re-acquired to obtain recorded data; Comparing the recorded data with a preset target value to obtain a comparison result; According to the comparison result, judging whether the disassembly efficiency requirement is met; If yes, a final data report is generated; if no, the process returns to the step of adjusting the control parameters of the mechanical device or hydraulic system until the disassembly efficiency requirement is met.

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