Industrial performance testing method and system for high-performance anti-wear hydraulic oil for coal mine heading machine

Abstract

The invention provides an industrial performance test method and system for high-performance anti-wear hydraulic oil for a coal mine heading machine, and relates to the technical field of hydraulic oil performance test.The method comprises the steps that in a viscosity test period, viscosity test data are obtained; determining a viscosity performance score according to the viscosity test data; obtaining a first antioxidant experiment sample and a second antioxidant experiment sample; in the first oxidation test period, acquiring first oxidation test data of the first antioxidant experiment sample; in a second oxidation test period, obtaining second oxidation test data of a second antioxidant experiment sample; determining an antioxidant performance score according to the first oxidation test data and the second oxidation test data; in the application test period, obtaining application test data; determining an actual performance score according to the application test data; and generating a test report. According to the invention, the comprehensiveness and accuracy of the industrial performance test of the high-performance anti-wear hydraulic oil for the coal mine heading machine can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic oil performance testing, and particularly to an industrial performance testing method and system for a high-performance anti-wear hydraulic oil for coal mine roadheaders. Background Art

[0002] In the related art, the performance testing of hydraulic oil is usually carried out under laboratory control conditions, and it may not be able to fully simulate the complex and changeable environment in coal mine underground, such as comprehensive factors like high dust, high humidity, vibration, impact, etc. That is, based on laboratory tests, it is impossible to comprehensively test the industrial performance of hydraulic oil in combination with the actual application situation.

[0003] The information disclosed in the background art part of this application is only intended to deepen the understanding of the general background art of this application, and should not be regarded as an admission or any form of implication that this information constitutes the prior art known to those skilled in the art. Summary of the Invention

[0004] The present invention provides an industrial performance testing method and system for a high-performance anti-wear hydraulic oil for coal mine roadheaders, which can solve the technical problem that it is impossible to comprehensively test the industrial performance of hydraulic oil based on laboratory tests and in combination with the actual application situation.

[0005] According to the first aspect of the present invention, there is provided an industrial performance testing method for a high-performance anti-wear hydraulic oil for coal mine roadheaders, including:

[0006] Obtaining viscosity test data during the viscosity test cycle;

[0007] Determining a viscosity performance score according to the viscosity test data;

[0008] Obtaining a first antioxidant experimental sample and a second antioxidant experimental sample;

[0009] Obtaining first oxidation test data of the first antioxidant experimental sample during the first oxidation test cycle;

[0010] Obtaining second oxidation test data of the second antioxidant experimental sample during the second oxidation test cycle;

[0011] Determining an antioxidant performance score according to the first oxidation test data and the second oxidation test data;

[0012] Obtaining application test data during the application test cycle;

[0013] Determining an actual performance score according to the application test data;

[0014] Generating a test report according to the viscosity performance score, the antioxidant performance score, and the actual performance score.

[0015] According to the present invention, based on the viscosity test data, a viscosity performance score is determined, including:

[0016] Based on the viscosity test data, the flow time of the oil sample and the test temperature are determined;

[0017] The viscometer constant is obtained;

[0018] Based on the flow time of the oil sample, the test temperature, and the viscometer constant, a first kinematic viscosity and a second kinematic viscosity are determined;

[0019] Based on the first kinematic viscosity and the second kinematic viscosity, a viscosity index is determined;

[0020] Based on the viscosity index, a viscosity performance score is determined.

[0021] According to the present invention, based on the first kinematic viscosity and the second kinematic viscosity, a viscosity index is determined, including:

[0022] Based on the second kinematic viscosity, a first standard oil viscosity and a second standard oil viscosity are determined;

[0023] Based on the second standard oil viscosity and the first kinematic viscosity, a first difference is determined;

[0024] Based on the first standard oil viscosity and the second standard oil viscosity, a second difference is determined;

[0025] Based on the first difference and the second difference, a viscosity index is determined.

[0026] According to the present invention, a first antioxidant test sample and a second antioxidant test sample are obtained, including:

[0027] The metal material of the hydraulic system of the roadheader is determined;

[0028] Based on the metal material of the hydraulic system of the roadheader, metal test pieces are obtained;

[0029] The metal test pieces are prepared to obtain the first antioxidant test sample and the second antioxidant test sample.

[0030] According to the present invention, based on the first oxidation test data and the second oxidation test data, an antioxidant performance score is determined, including:

[0031] Based on the first oxidation test data, a first oxidation degree test score is determined;

[0032] Based on the second oxidation test data, a second oxidation degree test score is determined;

[0033] Determine the antioxidant performance score based on the first oxidation degree test score and the second oxidation degree test score.

[0034] According to the present invention, determining the first oxidation degree test score based on the first oxidation test data includes:

[0035] Determine the first oxidation region based on the first oxidation test data;

[0036] Set a plurality of first sampling points in the first oxidation region;

[0037] Obtain the first corrosion depth of the first sampling point;

[0038] Determine the first sample mass and the first sample strength of the first antioxidant experimental sample according to the first oxidation test data;

[0039] Determine the first oxidation degree test score according to the first corrosion depth, the first sample mass, and the first sample strength.

[0040] According to the present invention, determining the first oxidation degree test score according to the first corrosion depth, the first sample mass, and the first sample strength includes: According to the formula , , , ,

[0041] Determine the first oxidation degree test score of the first antioxidant experimental sample , where , , , and are preset weight values, max is the maximum value function, is the first corrosion depth corresponding to the kth first sampling point in the ith first oxidation region, is the preset corrosion depth threshold, is the first sample mass of the first antioxidant experimental sample at the start time of the first oxidation test cycle, is the first sample mass of the first antioxidant experimental sample at the end time of the first oxidation test cycle, is the first sample strength of the first antioxidant experimental sample at the start time of the first oxidation test cycle, is the first sample strength of the first antioxidant experimental sample at the end time of the first oxidation test cycle, is the number of first sampling points in the i-th first oxidation region where the corrosion depth is greater than a preset corrosion depth threshold. is the number of first sampling points in the i-th first oxidation region where the corrosion depth is less than or equal to the preset corrosion depth threshold, K is the number of first sampling points in the first oxidation region, k ≤ K, n is the number of first oxidation regions, i ≤ n, and k, K, i, and n are all positive integers.

[0042] According to the present invention, determining the actual performance score based on the application test data includes:

[0043] Determining the ambient temperature, hydraulic oil cleanliness, hydraulic oil contamination, hydraulic oil temperature, and hydraulic system pressure according to the application test data;

[0044] Determining the cleanliness identification result according to the hydraulic oil cleanliness;

[0045] Determining the contamination identification result according to the hydraulic oil contamination;

[0046] Determining the hydraulic oil temperature rise according to the ambient temperature and the hydraulic oil temperature;

[0047] Determining the temperature rise identification result according to the hydraulic oil temperature rise;

[0048] Determining the average pressure according to the hydraulic system pressures at multiple moments in the application test cycle;

[0049] Determining the standard deviation of the hydraulic pressure according to the average pressure;

[0050] Determining the actual performance score according to the cleanliness identification result, the contamination identification result, the temperature rise identification result, the hydraulic system pressure, and the standard deviation of the hydraulic pressure.

[0051] According to the present invention, determining the actual performance score according to the cleanliness identification result, the contamination identification result, the temperature rise identification result, the hydraulic system pressure, and the standard deviation of the hydraulic pressure includes: According to the formula ,

[0052] Determining the actual performance score , where if is a conditional function, is the cleanliness identification result, is a preset multiple, is the contamination identification result, is the temperature rise identification result, , , , is the hydraulic system pressure at the j-th moment of the application test cycle. is the standard deviation of the hydraulic pressure, m is the number of moments of the applied test cycle, j ≤ m, and both j and m are positive integers.

[0053] According to a second aspect of the present invention, there is provided an industrial performance test system for a high-performance anti-wear hydraulic oil for a coal mine roadheader, comprising:

[0054] a viscosity data module for obtaining viscosity test data during a viscosity test cycle;

[0055] a viscosity scoring module for determining a viscosity performance score according to the viscosity test data;

[0056] an experimental sample module for obtaining a first antioxidant experimental sample and a second antioxidant experimental sample;

[0057] a first test module for obtaining first oxidation test data of the first antioxidant experimental sample during a first oxidation test cycle;

[0058] a second test module for obtaining second oxidation test data of the second antioxidant experimental sample during a second oxidation test cycle;

[0059] an oxidation scoring module for determining an antioxidant performance score according to the first oxidation test data and the second oxidation test data;

[0060] an application test module for obtaining application test data during an application test cycle;

[0061] an actual performance module for determining an actual performance score according to the application test data;

[0062] a test report module for generating a test report according to the viscosity performance score, the antioxidant performance score and the actual performance score.

[0063] Technical effects: According to the present invention, the industrial performance of the high-performance anti-wear hydraulic oil for coal mine roadheaders can be tested from three aspects: the viscosity performance, antioxidant performance, and actual application performance of the hydraulic oil, improving the comprehensiveness and accuracy of the industrial performance test of the high-performance anti-wear hydraulic oil for coal mine roadheaders. The first oxidation degree test score can be determined based on the first corrosion depth, the first sample mass, and the first sample strength. During the calculation process, the overall corrosion severity of the first oxidation region can be determined based on the corrosion depth at the first sampling point with relatively severe corrosion depth conditions and the corrosion depth at the first sampling point with relatively mild corrosion depth conditions. Further, based on the overall corrosion severity of the first oxidation region, the overall corrosion severity of the first antioxidant experimental sample can be determined, and the oxidation degree of the first antioxidant experimental sample can be evaluated from three aspects: the overall corrosion severity of the first antioxidant experimental sample, the mass change condition, and the metal strength decline condition, improving the accuracy and comprehensiveness of the first oxidation degree test score. When determining the actual performance score, the actual performance score can be determined based on the cleanliness identification result, the contamination degree identification result, the temperature rise identification result, the hydraulic system pressure, and the standard deviation of the hydraulic pressure. During the calculation process, the actual performance of the hydraulic oil can be evaluated from four aspects: the lubrication ability, anti-foaming property, thermal stability, and operation stability of the hydraulic oil in actual application, improving the comprehensiveness and accuracy of the actual performance score.

[0064] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit the present invention. According to the following detailed description of the exemplary embodiments with reference to the accompanying drawings, other features and aspects of the present invention will become clearer. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other embodiments can be obtained based on these drawings;

[0066] Figure 1 Exemplarily shows a flowchart of the industrial performance test method for the high-performance anti-wear hydraulic oil for coal mine roadheaders according to an embodiment of the present invention;

[0067] Figure 2 Exemplarily shows a flowchart of the viscosity performance score calculation according to an embodiment of the present invention;

[0068] Figure 3 Exemplarily shows a flowchart of obtaining the first antioxidant experimental sample and the second antioxidant experimental sample according to an embodiment of the present invention;

[0069] Figure 4 Exemplarily shows a flowchart for calculating the antioxidant performance score according to an embodiment of the present invention;

[0070] Figure 5 Exemplarily shows a flowchart for calculating the actual performance score according to an embodiment of the present invention;

[0071] Figure 6 Exemplarily shows a block diagram of an industrial performance test system for a high-performance anti-wear hydraulic oil for coal mine roadheaders according to an embodiment of the present invention. Detailed implementation manners

[0072] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are only a part rather than all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0073] The technical solutions of the present invention will be described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0074] Figure 1 Exemplarily shows a schematic flowchart of an industrial performance test method for a high-performance anti-wear hydraulic oil for coal mine roadheaders according to an embodiment of the present invention, and the method includes:

[0075] Step S1, in the viscosity test cycle, obtain viscosity test data;

[0076] Step S2, determine the viscosity performance score according to the viscosity test data;

[0077] Step S3, obtain a first antioxidant test sample and a second antioxidant test sample;

[0078] Step S4, in the first oxidation test cycle, obtain the first oxidation test data of the first antioxidant test sample;

[0079] Step S5, in the second oxidation test cycle, obtain the second oxidation test data of the second antioxidant test sample;

[0080] Step S6, determine the antioxidant performance score according to the first oxidation test data and the second oxidation test data;

[0081] Step S7, in the application test cycle, obtain application test data;

[0082] Step S8: Determine the actual performance score based on the application test data.

[0083] Step S9: Generate a test report based on the viscosity performance score, the antioxidant performance score, and the actual performance score.

[0084] According to the industrial performance test method for high-performance anti-wear hydraulic oil used in coal mine roadheaders according to the embodiments of the present invention, the industrial performance of the hydraulic oil can be tested from three aspects: the viscosity performance, the antioxidant performance, and the actual application performance of the hydraulic oil, improving the comprehensiveness and accuracy of the industrial performance test of high-performance anti-wear hydraulic oil used in coal mine roadheaders.

[0085] According to an embodiment of the present invention, in step S1, viscosity test data is obtained during the viscosity test period.

[0086] For example, during the viscosity test period, the hydraulic oil sample is respectively filled into the constant temperature bath at 40 °C and 100 °C. After the hydraulic sample is stable, the viscosity test data of the hydraulic oil sample is recorded.

[0087] According to an embodiment of the present invention, in step S2, the viscosity performance score is determined according to the viscosity test data.

[0088] Figure 2 Exemplarily shows the flowchart of calculating the viscosity performance score according to the embodiments of the present invention.

[0089] According to an embodiment of the present invention, step S2 includes:

[0090] Step S21: Determine the oil sample flow time and the test temperature according to the viscosity test data.

[0091] Step S22: Obtain the viscometer constant.

[0092] Step S23: Determine the first kinematic viscosity and the second kinematic viscosity according to the oil sample flow time, the test temperature, and the viscometer constant.

[0093] Step S24: Determine the viscosity index according to the first kinematic viscosity and the second kinematic viscosity.

[0094] Step S25: Determine the viscosity performance score according to the viscosity index.

[0095] For example, determine that the test temperatures are 40 degrees Celsius and 100 degrees Celsius respectively, and determine the time for the hydraulic oil sample to pass through the capillary in a constant temperature bath at 40 degrees Celsius and 100 degrees Celsius respectively, that is, the oil sample flow time; obtain the viscometer constant of the capillary viscometer through the product manual provided by the manufacturer of the capillary viscometer; calculate the kinematic viscosity at 40 degrees Celsius and 100 degrees Celsius respectively according to the oil sample flow time, test temperature and viscometer constant, that is, the first kinematic viscosity and the second kinematic viscosity, and the kinematic viscosity is determined according to the product of the viscometer constant and the oil sample flow time; calculate the viscosity index according to the first kinematic viscosity and the second kinematic viscosity; the larger the viscosity index, the lower the sensitivity of the viscosity of the oil product to temperature changes, that is, the viscosity will not drop too much at high temperatures and will not become too thick at low temperatures, and the better the viscosity performance of the oil product. Determine the viscosity index difference according to the viscosity index minus the set viscosity index threshold, and determine the viscosity performance score according to the ratio of the viscosity index difference to the set viscosity index threshold, where the set viscosity index threshold can be set to 120.

[0096] According to an embodiment of the present invention, step S24 includes:

[0097] Step S241, determine the first standard oil viscosity and the second standard oil viscosity according to the second kinematic viscosity;

[0098] Step S242, determine the first difference according to the second standard oil viscosity and the first kinematic viscosity;

[0099] Step S243, determine the second difference according to the first standard oil viscosity and the second standard oil viscosity;

[0100] Step S244, determine the viscosity index according to the first difference and the second difference.

[0101] For example, obtain the kinematic viscosity of a standard oil with a low viscosity index (viscosity index equal to 0) at 40 degrees Celsius with the same second kinematic viscosity, that is, the first standard oil viscosity, and obtain the kinematic viscosity of a standard oil with a high viscosity index (viscosity index equal to 100) at 40 degrees Celsius with the same second kinematic viscosity, that is, the second standard oil viscosity; determine the first difference according to the second standard oil viscosity minus the first kinematic viscosity; determine the second difference according to the second standard oil viscosity minus the first standard oil viscosity; determine the viscosity index by multiplying the ratio of the first difference and the second difference by 100.

[0102] According to an embodiment of the present invention, in step S3, obtain the first antioxidant experimental sample and the second antioxidant experimental sample.

[0103] Figure 3Exemplarily shown is a flowchart of obtaining a first antioxidant experimental sample and a second antioxidant experimental sample according to an embodiment of the present invention.

[0104] According to the first embodiment of the present invention, step S3 includes:

[0105] Step S31, determining the metal material of the roadheader hydraulic system;

[0106] Step S32, obtaining metal test pieces according to the metal material of the roadheader hydraulic system;

[0107] Step S33, preparing the metal test pieces to obtain the first antioxidant experimental sample and the second antioxidant experimental sample.

[0108] For example, determine the metal material of the roadheader hydraulic system (such as galvanized steel), select the same material as the metal material of the roadheader hydraulic system, and make it into metal test pieces; the metal test pieces are polished with 400# and 600# sandpapers in sequence until the surface is smooth and without scratches, and ultrasonically cleaned with acetone for 10 minutes to obtain the first antioxidant experimental sample and the second antioxidant experimental sample with the same quality and shape.

[0109] According to an embodiment of the present invention, in step S4, in the first oxidation test cycle, first oxidation test data of the first antioxidant experimental sample is obtained.

[0110] For example, there are various ratios of hydraulic oil samples, such as sample A (adding 1% antioxidant, 2% antiwear agent, 0.1% rust inhibitor, 0.001% antifoaming agent) and sample B (adding 1.5% antioxidant, 0.5% antiwear agent, 0.8% rust inhibitor, 0.002% antifoaming agent). Sample B is a relatively common form of hydraulic oil ratio. Taking sample B as the standard sample for hydraulic oil antioxidant test, in the first oxidation test cycle, using sample B, a metal-catalyzed oxidation experiment is carried out on the first antioxidant experimental sample to obtain the first oxidation test data of the first antioxidant experimental sample. The first oxidation test data includes the mass (weight of the first antioxidant experimental sample), strength (metal strength of the first antioxidant experimental sample), and corrosion area of the first antioxidant experimental sample, etc.

[0111] According to an embodiment of the present invention, in step S5, in the second oxidation test cycle, second oxidation test data of the second antioxidant experimental sample is obtained.

[0112] For example, in the second oxidation test cycle, the hydraulic oil sample used in the viscosity test cycle, i.e., sample A, is used to perform a metal catalytic oxidation experiment on the second anti-oxidation test sample to obtain second oxidation test data of the second anti-oxidation test sample. The second oxidation test data includes the sample mass, metal strength and corrosion area of the second anti-oxidation test sample. Except for the hydraulic oil used, the other experimental conditions of the second oxidation test cycle are the same as those of the first oxidation test cycle.

[0113] According to one embodiment of the present invention, in step S6, an antioxidant performance score is determined based on the first oxidation test data and the second oxidation test data.

[0114] Figure 4 The flowchart of the antioxidant performance score calculation according to an embodiment of the present invention is exemplarily shown.

[0115] According to one embodiment of the present invention, step S6 includes:

[0116] Step S61, determining a first oxidation degree test score based on the first oxidation test data;

[0117] Step S62, determining a second oxidation degree test score based on the second oxidation test data;

[0118] Step S63: determining an antioxidant performance score according to the first oxidation degree test score and the second oxidation degree test score.

[0119] For example, based on the first oxidation test data, the degree of oxidation of the first antioxidant test sample in the first oxidation test cycle is evaluated to determine the first oxidation degree test score; based on the second oxidation test data, the degree of oxidation of the second antioxidant test sample in the second oxidation test cycle is evaluated to determine the second oxidation degree test score, and the calculation method of the second oxidation degree test is the same as the calculation method of the first oxidation degree test score; based on the ratio of the second oxidation degree test score to the first oxidation degree test score, the antioxidant performance score is determined. The smaller the ratio is, the smaller the oxidation degree of the second antioxidant test sample is relative to the oxidation degree of the first antioxidant test sample, and the better the antioxidant property of sample A is relative to the antioxidant property of sample B.

[0120] According to one embodiment of the present invention, step S61 includes:

[0121] Step S611, determining a first oxidation region according to the first oxidation test data;

[0122] Step S612: setting a plurality of first sampling points in the first oxidation region;

[0123] Step S613: Obtain the first corrosion depth of the first sampling point;

[0124] Step S614: Determine the first sample mass and the first sample strength of the first antioxidant experimental sample according to the first oxidation test data;

[0125] Step S615: Determine the first oxidation degree test score according to the first corrosion depth, the first sample mass, and the first sample strength.

[0126] For example, obtain an image of the first antioxidant experimental sample at the end of the first oxidation test cycle, and use professional corrosion analysis software to determine the oxidation corrosion area of the first oxidation test cycle, that is, the first oxidation area; in the first oxidation area, set a number of first sampling points evenly according to the shape and area of the oxidation area, where the number of first sampling points is positively correlated with the area size of the first oxidation area, and the larger the area of the first oxidation area, the more the number of first sampling points; use an ultrasonic thickness gauge to determine the first corrosion depth at the first sampling point; at the start and end times of the first oxidation test cycle, detect the weight and metal strength of the first antioxidant experimental sample respectively to determine the first sample mass and the first sample strength; evaluate the oxidation degree of the first antioxidant experimental sample according to the first oxidation area, the first corrosion depth, the first sample mass, and the first sample strength, and determine the first oxidation degree test score.

[0127] According to an embodiment of the present invention, step S615 includes: determining the first oxidation degree test score of the first antioxidant experimental sample according to formulas (1), (2), and (3) , (1), (2), (3), where, , , , and are preset weight values, max is the maximum value function, is the first corrosion depth corresponding to the kth first sampling point in the ith first oxidation area, is the preset corrosion depth threshold, is the first sample mass of the first antioxidant experimental sample at the start time of the first oxidation test cycle, is the first sample mass of the first antioxidant experimental sample at the end time of the first oxidation test cycle, is the first sample strength of the first antioxidant experimental sample at the start time of the first oxidation test cycle, is the first sample strength of the first antioxidant experimental sample at the end time of the first oxidation test cycle, is the number of the first sampling points in the i-th first oxidation region where the corrosion depth is greater than the preset corrosion depth threshold, is the number of the first sampling points in the i-th first oxidation region where the corrosion depth is less than or equal to the preset corrosion depth threshold, K is the number of the first sampling points in the first oxidation region, k ≤ K, n is the number of the first oxidation regions, i ≤ n, and k, K, i, and n are all positive integers.

[0128] According to an embodiment of the present invention, is the ratio of the first corrosion depth corresponding to the k-th first sampling point in the i-th first oxidation region to the preset corrosion depth threshold. The larger this ratio is, the more serious the corrosion depth condition at the preset corrosion depth threshold is, can be set to 0.01 mm.

[0129] According to an embodiment of the present invention, in formula (1), the conditional function includes the following two cases. When satisfying the condition, it indicates that the corrosion depth condition at the k-th sampling point is relatively serious, and the value of the conditional function is When satisfying the condition, it indicates that the corrosion depth at the k-th sampling point is relatively slight, and the value of the conditional function is 0. When the number of the first sampling points with relatively serious corrosion depth among the first sampling points is larger, the preset weight value of represents taking the maximum value of the sum of the products of the ratio of the first corrosion depth corresponding to the first sampling points with relatively serious corrosion depth in the i-th first oxidation region to the preset corrosion depth threshold and the corresponding weights. For example, when the value at the first sampling point in the first first oxidation region is 1.1, the value at the second sampling point is 2, and the value at the third sampling point is 1.5, and the preset weights are , and respectively, then the value of is which means that when there are more first sampling points with relatively serious corrosion depth in the first first oxidation region, the impact on the overall corrosion condition of this first oxidation region becomes more serious as the number of the first sampling points with relatively serious corrosion depth increases. Among them, the change of the preset weight The part in the form of a linear function in the change indicates that the more severe the corrosion depth condition at a single first sampling point is, the more uniformly the overall corrosion condition of the first oxidation region increases. The part in the form of an exponential function in the change indicates that as the number of first sampling points with a more severe corrosion depth condition increases, the influence on the overall corrosion condition of the first oxidation region increases rapidly and non-uniformly. The above method of assigning weight values to find the maximum value can be used to determine the condition where the first sampling points with a more severe corrosion depth condition have the most severe impact on the overall corrosion of the first oxidation region.

[0130] According to an embodiment of the present invention, in formula (1), the conditional function has the following two cases. When the condition is satisfied, it indicates that the corrosion depth condition at the k-th sampling point is relatively mild, and the value of the conditional function is . When the condition is not satisfied, the value of the conditional function is 0. The more the number of first sampling points with a relatively mild corrosion depth among the first sampling points, the larger the value of the preset weight corresponding to the first sampling points. represents taking the maximum value of the sum of the products of the ratio of the first corrosion depth corresponding to the first sampling points with a relatively mild corrosion depth condition in the i-th first oxidation region to the preset corrosion depth threshold and the corresponding weight values. For example, when the value of at the first sampling point in the first first oxidation region is 0.5, the value of at the second first sampling point is 0.7, and the value at the third first sampling point is 0.6, and the preset weight values are , and , then the value of is , indicating that when there are more first sampling points with a relatively mild corrosion depth condition in the first first oxidation region, the influence on the overall corrosion condition of this first oxidation region becomes more severe as the number of first sampling points with a relatively mild corrosion depth condition increases. Among them, the part of the preset weight in the form of a linear function indicates that the relatively more severe the corrosion depth condition at a single first sampling point is, the more uniformly the overall severe corrosion condition of the first oxidation region increases. The above method of assigning weight values to find the maximum value can be used to determine the condition where the first sampling points with a relatively mild corrosion depth condition have the most severe impact on the overall corrosion of the first oxidation region.

[0131] According to an embodiment of the present invention, represents the condition where the corrosion depth conditions of all first sampling points in the first oxidation region have the most severe impact on the overall corrosion of the first oxidation region. Indicates the condition with the most severe overall corrosion effect on all oxidation regions of the first antioxidant experimental sample.

[0132] According to an embodiment of the present invention, is the relative difference between the mass of the first sample at the start time and the mass of the sample at the end time of the first oxidation test cycle for the first antioxidant experimental sample. The larger this ratio, the greater the mass change of the first antioxidant experimental sample during the first oxidation test cycle, and the more severe the oxidation reaction. is the relative difference between the strength of the first sample at the start time and the strength of the first sample at the end time of the first oxidation test cycle for the first antioxidant experimental sample. The larger this ratio, the greater the decrease in metal strength of the first antioxidant experimental sample during the first oxidation test cycle, and the more severe the oxidation reaction.

[0133] According to an embodiment of the present invention, in formula (2), is the sum of the conditional function according to the number of the first sampling points, representing the number of the first sampling points with a relatively severe corrosion depth condition in the i-th first oxidation region, where the conditional function is the same as that in formula (1) and will not be elaborated here. In formula (3), is the sum of the conditional function according to the number of the first sampling points, representing the number of the first sampling points with a relatively mild corrosion depth condition in the i-th first oxidation region, where the conditional function is the same as that in formula (1) and will not be elaborated here.

[0134] According to an embodiment of the present invention, Represents determining the first oxidation degree test score based on the overall corrosion severity condition, mass change condition, and metal strength decrease condition of the first antioxidant experimental sample.

[0135] In this way, the first oxidation degree test score can be determined based on the first corrosion depth, the mass of the first sample, and the strength of the first sample. During the calculation process, the overall corrosion severity condition of the first oxidation region can be determined according to the corrosion depth at the first sampling points with a relatively severe corrosion depth condition and the corrosion depth at the first sampling points with a relatively mild corrosion depth condition. Further, based on the overall corrosion severity condition of the first oxidation region, the overall corrosion severity condition of the first antioxidant experimental sample can be determined, and the oxidation degree of the first antioxidant experimental sample can be evaluated based on the overall corrosion severity condition, mass change condition, and metal strength decrease condition of the first antioxidant experimental sample, improving the accuracy and comprehensiveness of the first oxidation degree test score.

[0136] According to an embodiment of the present invention, in step S7, during the application test cycle, application test data is obtained.

[0137] For example, during the application test cycle, the hydraulic oil used in the viscosity test cycle and the second oxidation test cycle is applied to the hydraulic system of a coal mine roadheader to verify its performance in actual application and obtain application test data.

[0138] According to an embodiment of the present invention, in step S8, based on the application test data, an actual performance score is determined.

[0139] Figure 5 A flowchart of calculating the actual performance score according to an embodiment of the present invention is exemplarily shown.

[0140] According to an embodiment of the present invention, step S8 includes:

[0141] Step S81, based on the application test data, determine the ambient temperature, hydraulic oil cleanliness, hydraulic oil contamination level, hydraulic oil temperature, and hydraulic system pressure;

[0142] Step S82, based on the hydraulic oil cleanliness, determine the cleanliness identification result;

[0143] Step S83, based on the hydraulic oil contamination level, determine the contamination identification result;

[0144] Step S84, based on the ambient temperature and the hydraulic oil temperature, determine the hydraulic oil temperature rise;

[0145] Step S85, based on the hydraulic oil temperature rise, determine the temperature rise identification result;

[0146] Step S86, based on the hydraulic system pressures at multiple moments during the application test cycle, determine the average pressure;

[0147] Step S87, based on the average pressure, determine the standard deviation of the hydraulic pressure;

[0148] Step S88, based on the cleanliness identification result, the contamination identification result, the temperature rise identification result, the hydraulic system pressure, and the standard deviation of the hydraulic pressure, determine the actual performance score.

[0149] For example, during the application test cycle, the ambient temperature is obtained through temperature sensors set around the coal mine roadheader, the cleanliness of the hydraulic oil is obtained using the automatic particle counter method, the contamination degree of the hydraulic oil is determined using the Karl Fischer method and the vacuum degassing method, and the temperature of the hydraulic oil and the pressure of the hydraulic system are obtained using the temperature sensors and pressure sensors installed inside the coal mine roadheader; if the cleanliness of the hydraulic oil is greater than the preset hydraulic oil cleanliness threshold, indicating that the cleanliness of the hydraulic oil meets the standard, then the cleanliness identification result is 1, otherwise, the cleanliness identification result is 0. The preset hydraulic oil cleanliness threshold can be determined according to the internationally common ISO 4406 and NAS 163 standards; if the contamination degree of the hydraulic oil is less than the preset hydraulic oil contamination threshold, indicating that the contamination degree of the hydraulic oil meets the standard, then the contamination degree identification result is 1, otherwise, the contamination degree identification result is 0. The preset hydraulic oil contamination threshold can be determined according to the internationally common ISO 3722 standard; the temperature rise of the hydraulic oil is determined by subtracting the ambient temperature from the maximum value of the hydraulic oil temperature during the application test cycle; if the temperature rise of the hydraulic oil is less than the preset hydraulic oil temperature rise threshold, indicating that the temperature rise of the hydraulic oil meets the standard, then the temperature rise identification result is 1, otherwise, the temperature rise identification result is 0. The preset hydraulic oil temperature rise threshold can be set to 30 degrees Celsius; the average pressure is determined by averaging the hydraulic system pressures at multiple moments during the application test cycle; based on the average pressure, the standard deviation of the hydraulic system pressures at multiple moments during the application test cycle is calculated; based on the cleanliness identification result, the contamination degree identification result, the temperature rise identification result, the hydraulic system pressure, and the standard deviation of the hydraulic pressure, the performance status of the hydraulic oil in actual application is evaluated to determine the actual performance score.

[0150] According to an embodiment of the present invention, step S88 includes: determining the actual performance score according to formula (2) , (4), wherein, if is a conditional function, is the cleanliness identification result, is the preset multiple, is the contamination degree identification result, is the temperature rise identification result, , , , is the hydraulic system pressure at the j-th moment of the application test cycle, is the standard deviation of the hydraulic pressure, m is the number of moments in the application test cycle, j ≤ m, and both j and m are positive integers.

[0151] According to an embodiment of the present invention, is the cleanliness identification result, when When it is equal to 1, it indicates that the cleanliness of the hydraulic oil meets the standard, and it indicates that the lubricating ability of the hydraulic oil in actual application is relatively strong. is the pollution degree identification result. When is equal to 1, it indicates that the anti-foaming property of the hydraulic oil in actual application and the air are relatively strong. is the temperature rise identification result. When is equal to 1, it indicates that the thermal stability and heat dissipation efficiency of the hydraulic oil in actual application are relatively strong.

[0152] According to an embodiment of the present invention, in formula (4), the conditional function has the following two cases. When the condition of is satisfied, it indicates that the hydraulic system pressure at the j-th moment of the application test period is within the interval centered on the average hydraulic system pressure and with the standard deviation of the hydraulic pressure multiplied by two preset multiples as the interval length, and the value of the conditional function is 1. When the condition of is not satisfied, the value of the conditional function is 0. If the hydraulic system pressure at the j-th moment of the application test period meets the above conditions, it indicates that the deviation between the hydraulic system pressure and the mean value is relatively small, and the hydraulic system pressure at the j-th moment is relatively stable. Otherwise, it can be considered that the deviation between the hydraulic system pressure at the j-th moment and the mean value is relatively large, and there may be an abnormality in the hydraulic system pressure. is the ratio of the number of moments when the hydraulic system pressure is relatively stable to the number of moments of the application test period. The larger this ratio is, the relatively more stable the hydraulic system pressure within the application test period is, and it indicates that the operating stability of the hydraulic oil in actual application is relatively strong.

[0153] According to an embodiment of the present invention, is to determine the actual performance score according to the lubricating ability, anti-foaming property, thermal stability and operating stability of the hydraulic oil in actual application.

[0154] In this way, the actual performance score can be determined according to the cleanliness identification result, pollution degree identification result, temperature rise identification result, hydraulic system pressure and the standard deviation of the hydraulic pressure. During the calculation process, the actual performance of the hydraulic oil can be evaluated respectively from four aspects: the lubricating ability, anti-foaming property, thermal stability and operating stability of the hydraulic oil in actual application, which improves the comprehensiveness and accuracy of the actual performance score.

[0155] According to an embodiment of the present invention, in step S9, a test report is generated according to the viscosity performance score, the antioxidant performance score and the actual performance score.

[0156] For example, if the viscosity performance score is greater than or equal to 0, it indicates that the viscosity performance of the hydraulic oil is good; if the viscosity performance score is less than 0, it indicates that the viscosity performance of the hydraulic oil is poor. If the anti-oxidation performance score is less than or equal to 1, it indicates that the anti-oxidation performance of the hydraulic oil is relatively good; if the anti-oxidation performance score is greater than 1, it indicates that the anti-oxidation performance of the hydraulic oil is relatively poor. If the actual performance score is less than 3.9, it indicates that the performance of the hydraulic oil in actual application is poor; if the actual performance score is greater than or equal to 3.9, it indicates that the performance of the hydraulic oil in actual application is good.

[0157] According to the industrial performance test method of the high-performance anti-wear hydraulic oil for coal mine roadheaders according to the embodiments of the present invention, the industrial performance of the hydraulic oil can be tested respectively from three aspects: the viscosity performance, the anti-oxidation performance and the actual application performance of the hydraulic oil, improving the comprehensiveness and accuracy of the industrial performance test of the high-performance anti-wear hydraulic oil for coal mine roadheaders. The first oxidation degree test score can be determined according to the first corrosion depth, the first sample mass and the first sample strength. During the calculation process, the overall corrosion severity of the first oxidation area can be determined according to the corrosion depth at the first sampling point with relatively severe corrosion depth condition and the corrosion depth at the first sampling point with relatively mild corrosion depth condition. Further, according to the overall corrosion severity of the first oxidation area, the overall corrosion severity of the first anti-oxidation experimental sample is determined, and the oxidation degree of the first anti-oxidation experimental sample is evaluated from three aspects: the overall corrosion severity of the first anti-oxidation experimental sample, the mass change condition and the metal strength decrease condition, improving the accuracy and comprehensiveness of the first oxidation degree test score. When determining the actual performance score, the actual performance score can be determined according to the cleanliness identification result, the contamination degree identification result, the temperature rise identification result, the hydraulic system pressure and the standard deviation of the hydraulic pressure. During the calculation process, the actual performance of the hydraulic oil can be evaluated respectively from four aspects: the lubrication ability, the anti-foaming property, the thermal stability and the operation stability of the hydraulic oil in actual application, improving the comprehensiveness and accuracy of the actual performance score.

[0158] Figure 6 Exemplarily shown is a block diagram of an industrial performance test system of a high-performance anti-wear hydraulic oil for a coal mine roadheader according to an embodiment of the present invention. The system includes:

[0159] A viscosity data module, configured to obtain viscosity test data during a viscosity test period;

[0160] A viscosity scoring module, configured to determine a viscosity performance score according to the viscosity test data;

[0161] An experimental sample module, configured to obtain a first anti-oxidation experimental sample and a second anti-oxidation experimental sample;

[0162] The first test module is used to obtain the first oxidation test data of the first antioxidant experimental sample in the first oxidation test cycle;

[0163] The second test module is used to obtain the second oxidation test data of the second antioxidant experimental sample in the second oxidation test cycle;

[0164] The oxidation scoring module is used to determine the antioxidant performance score according to the first oxidation test data and the second oxidation test data;

[0165] The application test module is used to obtain the application test data in the application test cycle;

[0166] The actual performance module is used to determine the actual performance score according to the application test data;

[0167] The test report module is used to generate a test report according to the viscosity performance score, the antioxidant performance score and the actual performance score.

[0168] The present invention may be a method, an apparatus, a system, and / or a computer program product. The computer program product may include a computer-readable storage medium having thereon computer-readable program instructions for performing various aspects of the present invention.

[0169] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the drawings are only examples and do not limit the present invention. The object of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and described in the embodiments, and the embodiments of the present invention may have any deformation or modification without departing from the said principles.

Claims

1. A high-performance anti-wear hydraulic oil industrial performance test method for a coal mine roadheader, characterized in that Including: During the viscosity test cycle, obtain viscosity test data; Determine the viscosity performance score according to the viscosity test data; Obtain the first antioxidant experimental sample and the second antioxidant experimental sample; During the first oxidation test cycle, obtain the first oxidation test data of the first antioxidant experimental sample; During the second oxidation test cycle, obtain the second oxidation test data of the second antioxidant experimental sample; Determine the antioxidant performance score according to the first oxidation test data and the second oxidation test data; During the application test cycle, obtain application test data; Determine the actual performance score according to the application test data; Generate a test report according to the viscosity performance score, the antioxidant performance score and the actual performance score.

2. The industrial performance test method for the high-performance anti-wear hydraulic oil used in coal mine roadheaders according to claim 1, wherein Determine the viscosity performance score according to the viscosity test data, including: Determine the oil sample flow time and the test temperature according to the viscosity test data; Obtain the viscometer constant; Determine the first kinematic viscosity and the second kinematic viscosity according to the oil sample flow time, the test temperature and the viscometer constant; Determine the viscosity index according to the first kinematic viscosity and the second kinematic viscosity; Determine the viscosity performance score according to the viscosity index.

3. The industrial performance test method for the high-performance anti-wear hydraulic oil used in coal mine roadheaders according to claim 2, characterized in that, Determine the viscosity index according to the first kinematic viscosity and the second kinematic viscosity, including: Determine the first standard oil viscosity and the second standard oil viscosity according to the second kinematic viscosity; Determine the first difference according to the second standard oil viscosity and the first kinematic viscosity; Determine the second difference according to the first standard oil viscosity and the second standard oil viscosity; Determine the viscosity index according to the first difference and the second difference.

4. The industrial performance test method of the high-performance anti-wear hydraulic oil for coal mine roadheaders according to claim 1, characterized in that Obtain the first antioxidant experimental sample and the second antioxidant experimental sample, including: Determine the metal material of the roadheader hydraulic system; Obtain metal specimens according to the metal material of the roadheader hydraulic system; Prepare the metal specimens to obtain the first antioxidant experimental sample and the second antioxidant experimental sample.

5. The industrial performance test method for the high-performance anti-wear hydraulic oil used in coal mine roadheaders according to claim 1, characterized in that, Determine the antioxidant performance score according to the first oxidation test data and the second oxidation test data, including: Determine the first oxidation degree test score according to the first oxidation test data; Determine the second oxidation degree test score according to the second oxidation test data; Determine the antioxidant performance score according to the first oxidation degree test score and the second oxidation degree test score.

6. The industrial performance test method of the high-performance anti-wear hydraulic oil for coal mine roadheaders according to claim 5, wherein, Determine the first oxidation degree test score according to the first oxidation test data, including: Determine the first oxidation area according to the first oxidation test data; Set multiple first sampling points in the first oxidation area; Obtain the first corrosion depth of the first sampling point; Determine the first sample mass and the first sample strength of the first antioxidant experimental sample according to the first oxidation test data; Determine the first oxidation degree test score according to the first corrosion depth, the first sample mass and the first sample strength.

7. The industrial performance test method of the high-performance anti-wear hydraulic oil for coal mine roadheaders according to claim 6, characterized in that, Determine the first oxidation degree test score according to the first corrosion depth, the first sample mass and the first sample strength, including: According to the formula ， ， ， Determine the first oxidation degree test score of the first antioxidant experimental sample , where , , , and are preset weights, max is the maximum value function, is the first corrosion depth corresponding to the k-th first sampling point in the i-th first oxidation region, is the preset corrosion depth threshold, is the first sample mass of the first antioxidant experimental sample at the start time of the first oxidation test cycle, is the first sample mass of the first antioxidant experimental sample at the end time of the first oxidation test cycle, is the first sample strength of the first antioxidant experimental sample at the start time of the first oxidation test cycle, is the first sample strength of the first antioxidant experimental sample at the end time of the first oxidation test cycle, is the number of first sampling points with corrosion depth greater than the preset corrosion depth threshold in the i-th first oxidation region, is the number of first sampling points with corrosion depth less than or equal to the preset corrosion depth threshold in the i-th first oxidation region, K is the number of first sampling points in the first oxidation region, k ≤ K, n is the number of first oxidation regions, i ≤ n, and k, K, i, and n are all positive integers.

8. The industrial performance test method for the high-performance anti-wear hydraulic oil used in coal mine roadheaders according to claim 1, wherein Determine the actual performance score according to the application test data, including: Determine the ambient temperature, hydraulic oil cleanliness, hydraulic oil contamination, hydraulic oil temperature, and hydraulic system pressure based on the application test data; Determine the cleanliness identification result based on the hydraulic oil cleanliness; Determine the contamination identification result based on the hydraulic oil contamination; Determine the hydraulic oil temperature rise based on the ambient temperature and the hydraulic oil temperature; Determine the temperature rise identification result based on the hydraulic oil temperature rise; Determine the average pressure based on the hydraulic system pressures at multiple moments during the application test period; Determine the standard deviation of the hydraulic pressure based on the average pressure; Determine the actual performance score based on the cleanliness identification result, the contamination identification result, the temperature rise identification result, the hydraulic system pressure, and the standard deviation of the hydraulic pressure; 9. The industrial performance test method of the high-performance anti-wear hydraulic oil for coal mine roadheaders according to claim 8, characterized in that, Determine the actual performance score based on the cleanliness identification result, the contamination identification result, the temperature rise identification result, the hydraulic system pressure, and the standard deviation of the hydraulic pressure, including: According to the formula ， Determine the actual performance score , where if is a conditional function, is the cleanliness recognition result, is a preset multiple, is the contamination level recognition result, is the temperature rise recognition result, , , , is the hydraulic system pressure at the j-th moment of the application test cycle, is the standard deviation of the hydraulic pressure, m is the number of moments in the application test cycle, j ≤ m, and both j and m are positive integers.

10. A high-performance anti-wear hydraulic oil industrial performance test method for a coal mine roadheader, characterized in that, Including: A viscosity data module for obtaining viscosity test data during a viscosity test period; A viscosity scoring module for determining a viscosity performance score based on the viscosity test data; An experimental sample module for obtaining a first antioxidant experimental sample and a second antioxidant experimental sample; A first test module for obtaining first oxidation test data of the first antioxidant experimental sample during a first oxidation test period; A second test module for obtaining second oxidation test data of the second antioxidant experimental sample during a second oxidation test period; An oxidation scoring module for determining an antioxidant performance score based on the first oxidation test data and the second oxidation test data; An application test module for obtaining application test data during an application test period; An actual performance module for determining an actual performance score based on the application test data; A test report module for generating a test report based on the viscosity performance score, the antioxidant performance score, and the actual performance score.

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