A hydraulic power distribution method for hydraulic rotary impact equipment

Abstract

The present invention discloses a method for distributing hydraulic power of a hydraulic rotary impact device, which belongs to the field of hydraulic drilling equipment, and includes: obtaining a hydraulic rotary impact device; segmenting the operation of the hydraulic rotary impact device according to the structure of the hydraulic rotary impact device, and obtaining a first operation path and a second operation path; connecting a hydraulic drive motor driving an impact rotary mechanism, distributing hydraulic power to the first operation path and the second operation path, and outputting a first hydraulic power parameter and a second hydraulic power parameter; when the impact rotary mechanism operates along the first operation path, the hydraulic drive motor is driven according to the first hydraulic power parameter; when the impact rotary mechanism operates along the second operation path, the hydraulic drive motor is driven according to the second hydraulic power parameter. By obtaining different operation paths of the impact rotary mechanism inside and outside the shell for control, the hydraulic drive motor is accurately controlled according to actual working conditions, and the utilization efficiency of hydraulic power is improved.

Description

Technical Field

[0001] The invention relates to the field of hydraulic drilling equipment, and in particular to a hydraulic power distribution method for hydraulic rotary impact equipment. Background Art

[0002] The hydraulic rotary impact device drives the impact rotary mechanism to perform impact operations through a hydraulic drive motor. However, in actual applications, the impact rotary mechanism of the hydraulic rotary impact device needs to reciprocate inside and outside the impact shell, and different operation paths have significantly different requirements for hydraulic power. The existing hydraulic rotary impact device uses a single hydraulic power parameter to control the hydraulic drive motor, which cannot adapt to the actual working conditions of the impact rotary mechanism under different operation paths. Specifically, when the impact rotary mechanism is in the impact shell, the required hydraulic power is relatively small, and the hydraulic power supply under the existing control method is often too large, resulting in energy waste; when the impact rotary mechanism extends out of the impact shell to operate, the required hydraulic power is relatively large, and the hydraulic power supply under the existing control method is often insufficient, affecting the efficiency of the impact operation. In addition, improper control of hydraulic power under different operation paths will also cause collision and friction between the impact rotary mechanism and the impact shell, aggravating the wear and loss of the equipment and reducing its service life. Summary of the invention

[0003] The present application provides a hydraulic power distribution method for a hydraulic rotary impact device, aiming to solve the technical problem in the prior art that the hydraulic power distribution control of the hydraulic rotary impact device is improper under different operating paths of the impact rotating mechanism entering and exiting the impact shell, and it cannot be dynamically adjusted according to actual working conditions, resulting in low hydraulic drive efficiency.

[0004] The present application discloses a method for distributing hydraulic power for a hydraulic rotary impact device, comprising: obtaining a hydraulic rotary impact device, the structure of which includes an impact rotary mechanism, an impact shell and an impact spindle; segmenting the operation of the hydraulic rotary impact device according to the structure of the hydraulic rotary impact device to obtain a first operation path and a second operation path, wherein the first operation path is a path in which the impact rotary mechanism is inside the impact shell and operates along the impact spindle, and the second operation path is a path in which the impact rotary mechanism is outside the impact shell and operates on a stamping target along the impact spindle; connecting a hydraulic drive motor that drives the impact rotary mechanism, distributing hydraulic power to the first operation path and the second operation path according to a power distribution model, and outputting a first hydraulic power parameter and a second hydraulic power parameter, wherein the hydraulic power parameter includes at least pressure, flow, power and efficiency; when the impact rotary mechanism operates along the first operation path, the hydraulic drive motor is driven according to the first hydraulic power parameter; when the impact rotary mechanism operates along the second operation path, the hydraulic drive motor is driven according to the second hydraulic power parameter.

[0005] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0006] Due to the adoption of a hydraulic rotary impact device, the structure of the hydraulic rotary impact device includes an impact rotary mechanism, an impact shell and an impact spindle. By determining the key structural components of the hydraulic rotary impact device, a foundation is laid for the subsequent hydraulic power distribution for different operation paths; according to the structure of the hydraulic rotary impact device, the operation of the hydraulic rotary impact device is segmented to obtain a first operation path and a second operation path, wherein the first operation path is a path where the impact rotary mechanism is inside the impact shell and operates along the impact spindle, and the second operation path is a path where the impact rotary mechanism is outside the impact shell and operates on the stamping target along the impact spindle. By identifying different operation paths of the impact rotary mechanism inside and outside the shell, a fine division of the working process of the hydraulic rotary impact device is achieved, providing a basis for subsequent power distribution; the hydraulic drive motor driving the impact rotary mechanism is connected, and hydraulic power is distributed to the first operation path and the second operation path according to the power distribution model, and the first hydraulic power parameter and the second hydraulic power parameter are output, wherein the hydraulic power parameter includes at least pressure, flow, power and efficiency. By establishing a power distribution model, the optimal output is output for different operation paths. The combination of hydraulic power parameters realizes the matching of the output characteristics of the hydraulic drive motor with the actual working condition requirements, and improves the utilization efficiency of the hydraulic power; when the impact rotary mechanism operates along the first working path, the hydraulic drive motor is driven according to the first hydraulic power parameters, and when the impact rotary mechanism operates along the second working path, the hydraulic drive motor is driven according to the second hydraulic power parameters. By real-time monitoring the position of the impact rotary mechanism, the control parameters of the hydraulic drive motor are dynamically switched according to the working path it is located in, so as to realize the precise matching of the hydraulic power output with the actual working condition requirements, and ensure the efficient implementation of the impact operation. The technical solution solves the technical problem in the prior art that the hydraulic rotary impact device has improper hydraulic power distribution control under different working paths of the impact rotary mechanism entering and exiting the impact housing, and cannot be dynamically adjusted according to the actual working condition requirements, resulting in low hydraulic drive efficiency. By obtaining different working paths of the impact rotary mechanism inside and outside the housing, hydraulic power distribution is performed, the optimal hydraulic power parameters of the corresponding path are output, and parameter switching control is performed, so as to achieve the technical effect of accurately controlling the hydraulic drive motor according to the actual working condition requirements and improving the utilization efficiency of the hydraulic power.

[0007] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 A schematic flow chart of a method for distributing hydraulic power of a hydraulic rotary impact device is provided for an embodiment of the present application;

[0009] Figure 2 A flow chart of obtaining a first hydraulic power parameter and a second hydraulic power parameter in a hydraulic power distribution method for a hydraulic rotary impact device is provided for an embodiment of the present application. DETAILED DESCRIPTION

[0010] The overall idea of ​​the technical solution provided by this application is as follows:

[0011] An embodiment of the present application provides a hydraulic power distribution method for a hydraulic rotary impact device. The working process of the hydraulic rotary impact device is segmented, a power distribution model for different working paths is established, and dynamic parameter switching control is performed according to the real-time position of the impact rotary mechanism, so as to achieve precise matching of the output characteristics of the hydraulic drive motor with the actual working conditions.

[0012] Specifically, first, the key structural parameters of the hydraulic rotary impact equipment are obtained, including the impact rotary mechanism, the impact shell and the impact spindle, and the operation process of the equipment is divided into two stages according to these structural characteristics: when the impact rotary mechanism is located in the impact shell, it is defined as the first operation path; when the impact rotary mechanism extends out of the impact shell and operates on the punching target, it is defined as the second operation path. On this basis, a power distribution model is established to output the corresponding optimal hydraulic power parameter combination for the first operation path and the second operation path, and dynamically switch the control parameters of the hydraulic drive motor according to its real-time position information during the process of the impact rotary mechanism entering and exiting the impact shell.

[0013] Through the above technical scheme, the present application realizes the precise distribution and matching control of hydraulic power of the hydraulic rotary impact equipment under different operating conditions, effectively solving the problems of energy waste and equipment wear in the prior art, and not only improving the working efficiency of the hydraulic rotary impact equipment, but also reducing energy consumption, while extending the service life of the equipment.

[0014] After introducing the basic principles of the present application, the non-limiting implementation methods of the present application will be specifically introduced below in conjunction with the drawings in the specification.

[0015] like Figure 1 As shown, an embodiment of the present application provides a method for distributing hydraulic power of a hydraulic rotary impact device, the method comprising:

[0016] S1: Obtain a hydraulic rotary impact device, wherein the structure of the hydraulic rotary impact device includes an impact rotary mechanism, an impact housing, and an impact spindle.

[0017] Specifically, the structure of the hydraulic rotary impact device includes an impact rotary mechanism, an impact housing, and an impact spindle. The impact rotary mechanism can generate rotation and / or impact motion under hydraulic drive, and is the core functional component of the hydraulic rotary impact device. Its motion performance directly affects the working effect of the device; the impact housing is one of the main structures of the hydraulic rotary impact device, which supports, protects and guides the movement of the impact rotary mechanism to ensure that it moves accurately along a predetermined trajectory; the impact spindle is connected to the impact rotary mechanism and extends out of the impact housing. It is an intermediate transmission component that transmits the movement of the impact rotary mechanism to the punching target.

[0018] By acquiring the hydraulic rotary impact equipment, the objects for implementing the subsequent power distribution method are clarified, laying the foundation for further refining the control of the hydraulic rotary impact equipment under different working conditions.

[0019] S2: According to the structure of the hydraulic rotary impact device, the operation of the hydraulic rotary impact device is segmented to obtain a first operation path and a second operation path, wherein the first operation path is a path where the impact rotary mechanism is inside the impact shell and operates along the impact spindle, and the second operation path is a path where the impact rotary mechanism is outside the impact shell and operates along the impact spindle at the stamping target.

[0020] Specifically, based on the structure of the hydraulic rotary impact device, according to the position state of the impact rotary mechanism relative to the impact shell, the operation process of the hydraulic rotary impact device is divided into two stages, corresponding to the first operation path and the second operation path respectively. The first operation path is the path in which the impact rotary mechanism is inside the impact shell and moves along the impact main axis. Under this path, the impact rotary mechanism has not yet fully extended out of the impact shell, and its movement space is limited by the impact shell. Special attention should be paid to avoid collision between the two and damage. At the same time, since the impact rotary mechanism and the punching target have not yet contacted at this stage, the requirements for output power are relatively low. The second operation path is the path in which the impact rotary mechanism is outside the impact shell, continues to move along the impact main axis and finally acts on the punching target. Under this path, the impact rotary mechanism has fully extended out of the impact shell, is no longer limited by the movement space, and can move relatively freely. But at the same time, the impact rotary mechanism needs to overcome the reaction force of the punching target, and the demand for output power is significantly increased. It is necessary to reasonably allocate hydraulic power parameters to meet the requirements of impact power.

[0021] By dividing the operation into sections, and targeting the different power output requirements of the hydraulic rotary impact equipment under different working conditions, a clear basis for the subsequent implementation of phased hydraulic power optimization control is provided to further improve the equipment's working performance and safety of use.

[0022] S3: Connect the hydraulic drive motor that drives the impact rotation mechanism, distribute hydraulic power to the first working path and the second working path according to the power distribution model, and output the first hydraulic power parameter and the second hydraulic power parameter, wherein the hydraulic power parameter includes at least pressure, flow, power and efficiency.

[0023] Specifically, after the operation segments of the hydraulic rotary impact device are clarified, a hydraulic drive device connected to the impact rotary mechanism is introduced to achieve phased hydraulic power optimization control. Specifically, the hydraulic drive motor that drives the impact rotary mechanism is connected, and hydraulic power is distributed to the first operation path and the second operation path according to a preset power distribution model, and the corresponding first hydraulic power parameters and second hydraulic power parameters are output to accurately control the output performance of the hydraulic drive motor.

[0024] Among them, the hydraulic power parameters are selected and set according to the actual application requirements and equipment characteristics, including at least pressure, flow, power and efficiency. These parameters directly determine the performance indicators such as the output torque, speed and power of the hydraulic drive motor, which in turn affect the motion state and impact effect of the impact rotary mechanism. Among them, the power distribution model is established through theoretical analysis and experimental optimization based on the structural parameters, working conditions and target performance of the hydraulic rotary impact equipment, taking into account the characteristics and control requirements of the hydraulic system. Its purpose is to reasonably allocate limited hydraulic power resources according to the characteristics of different operation stages, on the premise of meeting the overall functional requirements of the hydraulic rotary impact equipment, so as to achieve the optimal matching of the output performance of the hydraulic drive motor under various working conditions and improve the comprehensive working efficiency and reliability of the equipment.

[0025] Through the hydraulic drive motor and power distribution model, a mapping relationship between hydraulic power parameters and equipment motion state is established, providing the necessary hardware and software foundation for achieving precise control in stages, thereby realizing power optimization control of hydraulic rotary impact equipment.

[0026] S4: When the impact rotary mechanism operates along the first operating path, the hydraulic drive motor is driven according to the first hydraulic power parameter.

[0027] Specifically, when the hydraulic rotary impact device enters the first operation path stage, that is, the impact rotary mechanism begins to extend along the impact main axis direction but has not yet completely separated from the impact shell, the output of the hydraulic drive motor is specifically controlled. Specifically, in this stage, the hydraulic drive motor is driven according to the first hydraulic power parameter determined by the power distribution model. The first hydraulic power parameter is set to a relatively low numerical range, so that the hydraulic drive motor runs at a smaller output torque and speed, thereby reducing the movement speed and strength of the impact rotary mechanism, ensuring that the impact rotary mechanism always maintains a sufficient gap with the impact shell during the extension process, avoiding collision between the two and causing structural damage or jamming and other faults. At the same time, when the impact rotary mechanism has not yet contacted the punching target and does not need to output a large impact power, the energy consumption of the hydraulic drive motor is reduced, thereby improving the overall energy utilization efficiency of the equipment.

[0028] In view of the characteristics of the first operating path stage of the hydraulic rotary impact equipment, the first hydraulic power parameters are used to achieve precise control of the low-speed and low-force movement of the impact rotary mechanism, which improves energy utilization efficiency while ensuring the safety of equipment operation, creating favorable conditions for subsequent high-power impact operations.

[0029] S5: When the impact rotary mechanism operates along the second operating path, the hydraulic drive motor is driven according to the second hydraulic power parameter.

[0030] Specifically, when the hydraulic rotary impact device enters the second operation path stage, that is, the impact rotary mechanism is fully extended from the impact housing and begins to act on the stamping target, the output of the hydraulic drive motor is controlled differently from the first operation path. Specifically, in this stage, the hydraulic drive motor is driven according to the second hydraulic power parameter determined by the power distribution model. Compared with the first hydraulic power parameter, the second hydraulic power parameter is set to a relatively high numerical range, so that the hydraulic drive motor runs at a larger output torque and speed, thereby significantly improving the movement speed and strength of the impact rotary mechanism, so that the impact rotary mechanism can quickly accumulate kinetic energy, and at the moment of contact with the stamping target, most of the kinetic energy is transferred to the stamping target in the form of impact force, thereby achieving high-efficiency and high-intensity stamping operations. At the same time, a higher movement speed also helps to improve the operating efficiency of the equipment and shorten the time of a single stamping cycle.

[0031] In view of the characteristics of the second operating path stage of the hydraulic rotary impact equipment, the second hydraulic power parameters are used to maximize the impact operation performance of the equipment. While significantly improving the stamping efficiency and strength, it also takes into account the operation stability and reliability, providing feasible control for achieving high-quality and high-efficiency stamping operations.

[0032] Furthermore, the embodiment of the present application also includes:

[0033] Acquiring geometric clearance data between the impact housing and the impact rotary mechanism;

[0034] Acquire a historical driving sample data set of the impact rotary mechanism, wherein the historical driving sample data set includes a hydraulic power parameter sample, an axial deviation displacement sample, and a radial deviation displacement sample;

[0035] Training is performed according to the geometric gap data, the historical driving sample data set and identification information identifying the collision risk, and outputting a driving collision risk identification model;

[0036] The driving collision risk identification model is connected to the power distribution model, and constraints are imposed when the power distribution model performs hydraulic power distribution.

[0037] In a feasible implementation, first, by performing three-dimensional modeling and dimensional measurement on the structure of the hydraulic rotary impact device, the spatial gap distribution data between the inner surface of the impact shell and the outer surface of the impact rotary mechanism are obtained, and the geometric gap data are obtained. The geometric gap data is stored and processed using point clouds, cross-sectional curves or other appropriate digital representation methods. Then, during the actual operation of the hydraulic rotary impact device, the motion state of the impact rotary mechanism is continuously monitored and recorded to obtain a historical drive sample data set of the impact rotary mechanism. The historical drive sample data set includes hydraulic power parameter samples, axial deviation displacement samples, and radial deviation displacement samples. Among them, the hydraulic power parameter samples reflect the actual output performance of the hydraulic drive motor, and the axial deviation displacement samples and radial deviation displacement samples respectively characterize the degree of deviation of the impact rotary mechanism relative to the impact spindle in the axial and radial directions, and comprehensively reflect the actual motion trajectory of the impact rotary mechanism.

[0038] Subsequently, the obtained geometric clearance data and historical drive sample data set are input into the machine learning model, and combined with the pre-defined identification information of collision risk (such as the minimum safety clearance threshold, the displacement threshold for collision occurrence, etc.), the model is learned and optimized through training algorithms such as support vector machines and neural networks, and an intelligent model that can accurately identify the collision risk between the impact rotary mechanism and the impact shell is obtained. The drive collision risk identification model receives the motion state data of the impact rotary mechanism in real time and gives a quantitative collision risk assessment result. Then, the obtained drive collision risk identification model is integrated into the power distribution model as an important constraint condition. When allocating hydraulic power parameters, the power distribution model first calls the drive collision risk identification model to evaluate the collision risk of the current motion state. If the collision risk is identified to exceed the preset safety threshold, the distribution result of the hydraulic power parameters is adjusted and restricted accordingly to ensure that the output of the hydraulic drive motor will not cause the impact rotary mechanism to collide with the impact shell. Through the hydraulic power control strategy based on real-time collision risk feedback, the operation safety of the equipment is guaranteed to the maximum extent, and the damage to the mechanism and efficiency loss caused by collision are avoided.

[0039] By constructing a drive collision risk identification model based on machine learning and integrating it with the power distribution model, a complete hydraulic power intelligent control solution is formed. It can adaptively avoid the collision risk between the impact rotation mechanism and the impact shell while meeting the performance requirements of the impact operation, further improving the working safety and reliability of the hydraulic rotary impact equipment.

[0040] Furthermore, the embodiment of the present application also includes:

[0041] According to the driving collision risk identification model, obtaining a first hydraulic power constraint value within a preset risk;

[0042] The power distribution model uses the first hydraulic power constraint value as a constraint condition to obtain a first hydraulic power parameter corresponding to the first operating path.

[0043] In a preferred embodiment, in each control cycle, the power distribution model first calls the driving collision risk identification model, and inputs the current impact rotary mechanism motion state data into the model for real-time evaluation. The driving collision risk identification model comprehensively analyzes multiple characteristic quantities such as the current motion displacement, speed, hydraulic power parameters, etc., and gives a quantitative collision risk assessment value. Then, the assessment value is compared with the preset collision risk threshold to obtain a first hydraulic power constraint value within a safe range. The first hydraulic power constraint value indicates that under the current motion state, the output parameters (such as pressure, flow, etc.) of the hydraulic drive motor must not exceed this value, otherwise it may cause the impact rotary mechanism to collide with the impact shell. Subsequently, the obtained first hydraulic power constraint value is passed to the power distribution model as an important constraint condition for optimizing the hydraulic power parameter distribution. When solving the first hydraulic power parameter corresponding to the first operating path, the power distribution model strictly abides by the restrictions of the first hydraulic power constraint value to ensure that the optimized hydraulic power parameter will not cause a collision risk, thereby maximizing the power demand of the equipment under the first operating path and improving the output efficiency of the hydraulic drive motor under the premise of ensuring collision safety.

[0044] Through the adaptive hydraulic power distribution constraint mechanism, that is, according to the real-time motion state of the impact rotary mechanism, the output upper limit of the hydraulic drive motor is dynamically adjusted to maximize the performance potential of the hydraulic power system while ensuring the safety of movement. Compared with the traditional fixed threshold constraint, it can more accurately and flexibly control the operating state of the hydraulic rotary impact equipment under complex working conditions, avoiding efficiency loss or safety hazards caused by improper constraint setting. Therefore, by real-time evaluation of the collision risk of the impact rotary mechanism and dynamically adjusting the output constraint conditions of the hydraulic drive motor, while ensuring the safety of equipment operation, the optimal matching of hydraulic power performance is achieved, effectively improving the comprehensive work efficiency and reliability of the hydraulic rotary impact equipment.

[0045] Further, such as Figure 2 As shown, the embodiment of the present application also includes:

[0046] Obtaining a target stamping demand of the hydraulic rotary impact device, wherein the target stamping demand is the required power of the impact rotary mechanism acting on the stamping target;

[0047] Acquire a first driving distance corresponding to the first working path and a second driving distance corresponding to the second working path;

[0048] Acquire a first initialization hydraulic power parameter and a second initialization hydraulic power parameter;

[0049] The power distribution model iteratively optimizes and distributes the first driving distance and the first initialized hydraulic power parameter, and the second driving distance and the second initialized hydraulic power parameter based on a segmented algorithm to obtain the first hydraulic power parameter and the second hydraulic power parameter that meet the target stamping requirement.

[0050] In a feasible implementation, first, according to the material properties, geometric dimensions and required plastic deformation of the impact target and other process parameters, the target impact force, energy or momentum and other indicators that the hydraulic rotary impact device needs to provide when completing the stamping operation are obtained, which are used as the required power that the impact rotary mechanism must achieve when acting on the stamping target. Among them, the target stamping demand is obtained by theoretical calculation, simulation analysis or experimental testing, which is an important basis for hydraulic power distribution and optimization control. Then, according to the structural layout and motion characteristics of the hydraulic rotary impact device, the driving distance that the impact rotary mechanism needs to pass in the first working path (i.e., the stage of moving along the impact main axis inside the impact shell) and the second working path (i.e., the stage of fully extending the impact shell and acting on the stamping target) is determined, and the first driving distance and the second driving distance are obtained. The driving distance is obtained by three-dimensional modeling and kinematic analysis of the equipment, or by actual measurement and statistics, and is an important input for calculating hydraulic power parameters and energy distribution ratios.

[0051] Subsequently, according to the rated working parameters and empirical values ​​of the hydraulic rotary impact equipment, the initial hydraulic power parameters of the hydraulic drive motor under the first working path and the second working path are set, and the first initialization hydraulic power parameters and the second initialization hydraulic power parameters, including pressure, flow, power, etc., are obtained as the starting point for the optimization calculation of the power distribution model. The initial hydraulic power parameters are estimated based on the historical operation data of the equipment, process requirements or expert experience, or obtained through experimental testing and parameter identification methods, providing a search starting point for hydraulic power optimization and accelerating the optimization convergence speed. Afterwards, the power distribution model, under the constraints of the given target stamping demand and the driving distance of the two working paths, takes the first initialization hydraulic power parameters and the second initialization hydraulic power parameters as the starting point, and uses the segmentation algorithm to iteratively optimize the output parameters of the hydraulic drive motor under the two working paths until the optimal hydraulic power parameter combination that meets the target performance requirements is found. Among them, the segmentation algorithm can adopt a variety of methods such as mathematical programming, intelligent algorithm, heuristic search, etc. The goal is to minimize the error between the hydraulic power parameters and the target stamping demand under the premise of meeting the constraints of the hydraulic system, and achieve the optimal matching of the output performance of the hydraulic drive motor. The optimized first hydraulic power parameter and the second hydraulic power parameter are respectively used as the basis for the hydraulic rotary impact device to control the first operating path and the second operating path in actual work, thereby realizing precise control of the entire stamping operation process.

[0052] By acquiring key information such as target stamping requirements, operation path driving distance, and initialization hydraulic power parameters, the output parameters of the hydraulic drive motor are optimized in segments using an intelligent optimization algorithm. While meeting the overall performance requirements, fine control of different operation stages is achieved, effectively improving the stamping performance of the hydraulic rotary impact equipment.

[0053] Furthermore, the embodiment of the present application also includes:

[0054] The expression of the power distribution model is:

[0055] ;

[0056] in, For the target stamping demand, is the first hydraulic power parameter corresponding to the first operation path, is a first initialization hydraulic power parameter corresponding to the first operation path, is the adjustment coefficient of the first operation path, is the current real-time hydraulic power parameter of the first working path, , is the first driving distance of the first working path, A power efficiency coefficient of the first operation path;

[0057] The second hydraulic power parameter corresponding to the second operation path, The second initialization hydraulic power parameter corresponding to the second operation path, is the adjustment coefficient of the second operation path, is the current real-time hydraulic power parameter of the second working path, , is the second driving distance of the second working path, is the power efficiency coefficient of the second operation path.

[0058] In a preferred embodiment, a specific mathematical expression of the power distribution model is given to quantitatively describe the optimal hydraulic power parameters of the hydraulic drive motor under the first working path and the second working path, as follows:

[0059] ;

[0060] in, It represents the optimal hydraulic power parameters of the hydraulic drive motor under the first working path and the second working path obtained by optimization, that is, the first hydraulic power parameters and the second hydraulic power parameters that meet the target stamping requirements. and It is the optimization target of the power distribution model, which represents the optimal working state of the hydraulic drive motor under two operation paths while meeting the target stamping requirements and other constraints.

[0061] and The optimization process of hydraulic power parameters corresponding to the first operation path and the second operation path respectively. For the first operation path, the optimized first hydraulic power parameter Equal to the first initial hydraulic power parameter Plus an adjustment amount. The size of the adjustment amount is determined by three factors: target stamping requirements , Current real-time hydraulic power parameters Theoretical optimal hydraulic power parameters corresponding to the first working path .in, The calculation formula is , represents the theoretical optimal output of the hydraulic drive motor under the first working path under the conditions of given target stamping demand and first driving distance, and the power transmission efficiency coefficient of the first working path Inversely proportional. is the adjustment coefficient of the first operation path, which is used to control the optimization step size and convergence speed of the hydraulic power parameters; for the second operation path, the optimized second hydraulic power parameters The calculation method of is similar to that of the first operation path, except that the corresponding parameters and variables are replaced with the values ​​corresponding to the second operation path, such as the second initial hydraulic power parameter , Current real-time hydraulic power parameters , Second driving distance and the power transmission efficiency coefficient of the second working path Etc.; the various parameters in the power distribution model expression can be appropriately modified according to the needs of actual working conditions. For example, the adjustment coefficient and Online adaptive adjustments are performed to meet the optimization needs of different stages; other factors that affect the efficiency of hydraulic power transmission, such as pipeline pressure loss, leakage flow, etc., can also be introduced to further improve the accuracy and practicality of the model.

[0062] By introducing factors such as adjustment coefficient and power transmission efficiency, an accurate mathematical description and rapid solution of the hydraulic power distribution process are achieved, providing an important theoretical basis and calculation tool for the intelligent control of hydraulic rotary impact equipment.

[0063] Furthermore, the embodiment of the present application also includes:

[0064] Acquire the preparation material information and surface texture information of the impact spindle, analyze the influence of the preparation material information and the surface texture information on the power transmission efficiency of the impact rotary mechanism according to the influence of the preparation material information and the surface texture information, and acquire the power influence coefficient;

[0065] When the dynamic influence coefficient is less than the preset threshold , if the power influence coefficient is greater than or equal to the preset threshold .

[0066] In a preferred embodiment, first, by testing and statistics on the material selection, heat treatment process, surface roughness, texture orientation and other parameters of the impact spindle, a quantitative correlation model between the performance parameters of the impact spindle and the power transmission efficiency of the impact rotary mechanism is established. The model can be constructed using a variety of methods such as theoretical analysis, finite element simulation, and experimental fitting, with the aim of revealing the influence of the material properties and microstructure of the impact spindle on the energy loss and load transfer characteristics during the rotational impact process. On this basis, a quantitative index for comprehensively evaluating the degree of influence of the impact spindle performance on the power transmission efficiency is proposed, namely, the power influence coefficient. The coefficient is represented by a dimensionless number between 0 and 1. The larger the value, the more favorable the material and surface properties of the impact spindle are for power transmission, and the smaller the value, the greater the negative impact.

[0067] When the power influence coefficient is less than the preset threshold, it indicates that the material selection and surface treatment process of the current impact spindle cannot meet the requirements of efficient power transmission. In the power distribution model, the power transmission efficiency coefficients of the first working path and the second working path are set to and Set to be equal, that is This means that in the case of poor power transmission performance, the energy loss characteristics of the two operation paths are basically the same, and there is no need for differentiated power distribution and optimization. When the power influence coefficient is greater than or equal to the preset threshold, it indicates that the performance of the current impact spindle can meet the requirements of efficient power transmission, and it is necessary to set the power transmission efficiency coefficient of the first operation path and the second operation path in the power distribution model. and Set to unequal, that is . This means that under the condition of good power transmission performance, there are obvious differences in the energy loss characteristics of the two operation paths, and targeted power distribution and optimization are required according to their respective characteristics to give full play to the advantages of the impact spindle performance and improve the efficiency of the entire hydraulic impact system. Among them, the preset threshold of the power influence coefficient is set according to the design requirements, working conditions and performance indicators of the hydraulic rotary impact equipment. Through experimental testing and statistical analysis, the preset threshold is dynamically adjusted and adaptively optimized to adapt to the performance fluctuations and usage status changes of different batches of impact spindles.

[0068] By introducing the dynamic influence coefficient, the influence of the material properties and surface characteristics of the impact spindle on the rotational impact power transmission efficiency is quantitatively described, and the key parameters in the power distribution model are accordingly and The value is dynamically adjusted, which effectively improves the energy utilization efficiency and working stability of the hydraulic rotary impact equipment.

[0069] Furthermore, the embodiment of the present application also includes:

[0070] Acquire a hydraulic power difference between a first initialized hydraulic power parameter and a second initialized hydraulic power parameter;

[0071] If the hydraulic power difference is greater than a preset difference, a third working path is acquired, wherein the third working path is set on the second working path as a buffer path between the first working path and the second working path;

[0072] Based on the hydraulic power difference, obtaining a third hydraulic power parameter corresponding to the third operation path;

[0073] When the impact rotary mechanism operates along the third operating path, the hydraulic drive motor performs buffer transition drive according to the third hydraulic power parameter.

[0074] In a preferred embodiment, a buffering transition control method is proposed by taking into account the influence of the hydraulic power difference between the first working path and the second working path on the smooth transition of the equipment.

[0075] First, after determining the initial hydraulic power parameters corresponding to the first working path and the second working path, namely the first initialization hydraulic power parameter and the second initialization hydraulic power parameter, the hydraulic power difference between the two parameters is calculated to evaluate the hydraulic power change amplitude between the two working paths, reflecting the drastic degree of output change of the hydraulic drive motor when the impact rotary mechanism switches between the two working paths. Then, it is judged whether the hydraulic power difference is greater than the preset difference. If the hydraulic power difference is greater than the preset difference, it indicates that the hydraulic power change amplitude between the first working path and the second working path is too large, and the direct switching of the impact rotary mechanism between the two paths may cause impact vibration or motion instability of the equipment, which is not conducive to achieving smooth and efficient impact operation. Therefore, an additional buffer path, namely the third working path, is set on the second working path as a transition channel between the first working path and the second working path. The third working path is planned according to the requirements of the structural layout, motion characteristics and control accuracy of the equipment, for example, it is set to a straight line segment, arc segment or other smooth curve segment parallel to or inclined at a certain angle to the second working path.

[0076] Afterwards, according to the first initialization hydraulic power parameter, the second initialization hydraulic power parameter and the hydraulic power difference between the two, the output parameter of the hydraulic drive motor on the third operation path, i.e., the third hydraulic power parameter, is determined by interpolation operation, optimization algorithm and other methods. The value of the third hydraulic power parameter is between the first initialization hydraulic power parameter and the second initialization hydraulic power parameter, which plays a role in buffering transition. At the same time, the change law of the third hydraulic power parameter should be as smooth as possible to avoid the phenomenon of step or oscillation that is not conducive to the stable operation of the equipment. When the impact rotary mechanism switches from the first operation path to the second operation path, it first enters the third operation path. At this time, the hydraulic drive motor outputs the corresponding pressure, flow, etc. according to the third hydraulic power parameter, so that the impact rotary mechanism smoothly transitions to the second operation path. On the third operation path, the hydraulic power parameter gradually transitions from the first initialization hydraulic power parameter to the second initialization hydraulic power parameter, and the change rate is controlled by the third hydraulic power parameter to avoid sudden changes or shocks, thereby ensuring the continuity and stability of the equipment operation.

[0077] By introducing the third operating path and the third hydraulic power parameter, the problem of equipment impact vibration caused by the sudden change of hydraulic power when switching between the first operating path and the second operating path is effectively solved, the smooth operation and efficient operation of the impact rotary mechanism under different working conditions are achieved, and the stability and reliability of the impact operation are guaranteed.

[0078] Furthermore, the embodiment of the present application also includes:

[0079] The impact shell is provided with a position sensor, which monitors the real-time position of the impact rotating mechanism according to the position sensor to determine whether the impact rotating mechanism extends out of the impact shell. When the impact rotating mechanism does not fully extend out of the impact shell, the first operating path is triggered; when the impact rotating mechanism fully extends out of the impact shell, the second operating path is triggered.

[0080] In a feasible implementation, a position sensor is arranged on the impact shell to monitor the position state of the impact rotary mechanism relative to the impact shell in real time and determine whether the impact rotary mechanism extends out of the impact shell. Among them, the position sensor can be selected from a variety of types such as inductive, capacitive, photoelectric, magnetostrictive, etc., and is reasonably configured according to factors such as the structural layout of the equipment, measurement accuracy, and environmental conditions. By continuously collecting the displacement signal of the impact rotary mechanism moving along the impact spindle through the position sensor and comparing it with the position of the impact shell, it can be determined whether the impact rotary mechanism is inside or outside the impact shell at any time. The installation position and number of the position sensor are flexibly selected according to factors such as the structural form, size, and motion accuracy requirements of the impact shell. For example, one or more position sensors are arranged on the front end, middle, or rear end face of the impact shell to realize real-time monitoring of the entire movement of the impact rotary mechanism; position sensors can also be arranged at specific parts of the impact spindle or impact rotary mechanism to directly obtain their relative displacement data.

[0081] When the position sensor detects that the impact rotary mechanism has not yet fully extended out of the impact shell, the first operation path is automatically triggered. At this time, the impact rotary mechanism is inside the impact shell, corresponding to the first operation stage, the hydraulic drive motor is controlled according to the first hydraulic power parameter to ensure that the impact rotary mechanism moves safely and efficiently in a limited space. When the position sensor detects that the impact rotary mechanism has fully extended out of the impact shell, the second operation path is automatically triggered. At this time, the impact rotary mechanism is outside the impact shell, corresponding to the second operation stage, the hydraulic drive motor is controlled according to the second hydraulic power parameter to ensure that the impact rotary mechanism can obtain sufficient impact energy and efficiently complete the stamping operation of the target workpiece.

[0082] By real-time monitoring of the position status of the impact rotary mechanism relative to the impact shell, the current operation stage is automatically determined, and the hydraulic power control parameters are switched accordingly, so as to achieve efficient operation and seamless conversion of the impact rotary mechanism under different working conditions.

[0083] In summary, the hydraulic power distribution method of the hydraulic rotary impact device provided in the embodiment of the present application has the following technical effects:

[0084] A hydraulic rotary impact device is obtained. The structure of the hydraulic rotary impact device includes an impact rotary mechanism, an impact shell, and an impact spindle. The key structural components of the hydraulic rotary impact device are clarified to lay the foundation for the subsequent hydraulic power distribution for different operation paths. According to the structure of the hydraulic rotary impact device, the operation of the hydraulic rotary impact device is segmented to obtain the first operation path and the second operation path. The first operation path is the path where the impact rotary mechanism is inside the impact shell and operates along the impact spindle. The second operation path is the path where the impact rotary mechanism is outside the impact shell and operates on the stamping target along the impact spindle. By identifying the different operation paths of the impact rotary mechanism inside and outside the shell, the fine division of the working process of the hydraulic rotary impact device is realized, providing a basis for the subsequent power distribution. The hydraulic drive motor driving the impact rotary mechanism is connected, and the hydraulic power is distributed to the first operation path and the second operation path according to the power distribution model, and the first hydraulic power parameter and the second hydraulic power parameter are output. The hydraulic power parameters include at least pressure, flow, power and efficiency. By establishing a power distribution model, the optimal hydraulic power parameter combination is output for different operation paths, so as to match the output characteristics of the hydraulic drive motor with the actual working condition requirements and improve the utilization efficiency of the hydraulic power. When the impact rotary mechanism operates along the first operating path, the hydraulic drive motor is driven according to the first hydraulic power parameter. According to the working state of the impact rotary mechanism in the shell, the hydraulic drive motor is controlled to output according to the matching first hydraulic power parameter, ensuring that the equipment operates safely and efficiently under this path. When the impact rotary mechanism operates along the second operating path, the hydraulic drive motor is driven according to the second hydraulic power parameter. According to the working state of the impact rotary mechanism outside the shell, the hydraulic drive motor is controlled to output according to the matching second hydraulic power parameter, ensuring that the equipment performs the best impact operation performance under this path. By obtaining different operating paths of the impact rotary mechanism inside and outside the shell, hydraulic power is distributed, the optimal hydraulic power parameters of the corresponding path are output, and parameter switching control is performed, the technical effect of accurately controlling the hydraulic drive motor according to actual working conditions and improving the utilization efficiency of hydraulic power is achieved.

[0085] Any step of the method described above can be stored as a computer instruction or program in an unlimited computer memory, and can be called and recognized by an unlimited computer processor to implement any method in the embodiments of the present application, without any unnecessary restrictions.

[0086] Furthermore, the first or second mentioned above may not only represent an order relationship, but may also represent a specific concept, and / or refer to multiple elements that can be selected individually or in full. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the present application and its equivalents, the present application intends to include these modifications and variations.

Claims

1. A method for distributing hydraulic power of a hydraulic rotary impact device, characterized in that: The method comprises: Obtain a hydraulic rotary impact device, wherein the structure of the hydraulic rotary impact device includes an impact rotary mechanism, an impact housing, and an impact spindle; According to the structure of the hydraulic rotary impact device, the operation of the hydraulic rotary impact device is segmented to obtain a first operation path and a second operation path, wherein the first operation path is a path where the impact rotary mechanism is inside the impact housing and operates along the impact spindle, and the second operation path is a path where the impact rotary mechanism is outside the impact housing and operates along the impact spindle at a stamping target; Connecting to the hydraulic drive motor driving the impact rotary mechanism, distributing hydraulic power to the first working path and the second working path according to the power distribution model, and outputting a first hydraulic power parameter and a second hydraulic power parameter, wherein the hydraulic power parameter includes pressure, flow, power and efficiency; When the impact rotary mechanism operates along the first operating path, the hydraulic drive motor is driven according to the first hydraulic power parameter; When the impact rotary mechanism operates along the second operating path, the hydraulic drive motor is driven according to the second hydraulic power parameter; The method includes: distributing hydraulic power to the first working path and the second working path according to a power distribution model, and outputting a first hydraulic power parameter and a second hydraulic power parameter. Obtaining a target stamping demand of the hydraulic rotary impact device, wherein the target stamping demand is the required power of the impact rotary mechanism acting on the stamping target; Acquire a first driving distance corresponding to the first working path and a second driving distance corresponding to the second working path; Acquire a first initialization hydraulic power parameter and a second initialization hydraulic power parameter; The power distribution model iteratively optimizes and distributes the first driving distance and the first initialization hydraulic power parameter, and the second driving distance and the second initialization hydraulic power parameter based on a segmentation algorithm to obtain the first hydraulic power parameter and the second hydraulic power parameter that meet the target stamping requirement; The expression of the power distribution model includes: ； in, For the target stamping demand, is the first hydraulic power parameter corresponding to the first operation path, is the first initialization hydraulic power parameter corresponding to the first operation path, is the adjustment coefficient of the first operation path, is the current real-time hydraulic power parameter of the first working path, , is the first driving distance of the first working path, is the power efficiency coefficient of the first operation path; The second hydraulic power parameter corresponding to the second operation path, is the second initialization hydraulic power parameter corresponding to the second working path, is the adjustment coefficient of the second operation path, is the current real-time hydraulic power parameter of the second working path, , is the second driving distance of the second working path, is the power efficiency coefficient of the second operating path.

2. The method according to claim 1, characterized in that The method further comprises: Acquiring geometric clearance data between the impact housing and the impact rotary mechanism; Acquire a historical driving sample data set of the impact rotary mechanism, wherein the historical driving sample data set includes a hydraulic power parameter sample, an axial deviation displacement sample, and a radial deviation displacement sample; Training is performed according to the geometric gap data, the historical driving sample data set and identification information identifying the collision risk, and outputting a driving collision risk identification model; The driving collision risk identification model is connected to the power distribution model, and constraints are imposed when the power distribution model performs hydraulic power distribution.

3. The method according to claim 2, characterized in that The method of constraining the power distribution model when distributing hydraulic power includes: According to the driving collision risk identification model, obtaining a first hydraulic power constraint value within a preset risk; The power distribution model uses the first hydraulic power constraint value as a constraint condition to obtain a first hydraulic power parameter corresponding to the first operating path.

4. The method according to claim 1, characterized in that Acquire the preparation material information and surface texture information of the impact spindle, analyze the influence of the preparation material information and the surface texture information on the power transmission efficiency of the impact rotary mechanism according to the influence of the preparation material information and the surface texture information, and acquire the power influence coefficient; When the power influence coefficient is less than the preset threshold , if the power influence coefficient is greater than or equal to the preset threshold .

5. The method according to claim 1, characterized in that The method further comprises: Acquire a hydraulic power difference between a first initialized hydraulic power parameter and a second initialized hydraulic power parameter; If the hydraulic power difference is greater than a preset difference, a third working path is acquired, wherein the third working path is set on the second working path as a buffer path between the first working path and the second working path; Based on the hydraulic power difference, obtaining a third hydraulic power parameter corresponding to the third operation path; When the impact rotary mechanism operates along the third operating path, the hydraulic drive motor performs buffer transition drive according to the third hydraulic power parameter.

6. The method according to claim 1, characterized in that The impact shell is provided with a position sensor, which monitors the real-time position of the impact rotating mechanism according to the position sensor to determine whether the impact rotating mechanism extends out of the impact shell. When the impact rotating mechanism does not fully extend out of the impact shell, the first operating path is triggered; when the impact rotating mechanism fully extends out of the impact shell, the second operating path is triggered.

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