Industrial performance test method and system for high-performance wear-resistant hydraulic oil for coal mine heading machine

Abstract

The application provides a kind of coal mine heading machine with high performance wear-resistant hydraulic oil industrial performance test method and system, it is related to hydraulic oil performance test technical field, the method includes: in viscosity test period, obtain viscosity test data;According to viscosity test data, determine viscosity performance score;Obtain first antioxidant experimental sample and second antioxidant experimental sample;In first oxidation test period, obtain the first oxidation test data of first antioxidant experimental sample;In second oxidation test period, obtain the second oxidation test data of second antioxidant experimental sample;According to first oxidation test data and second oxidation test data, determine antioxidant performance score;In application test period, obtain application test data;According to application test data, determine actual performance score;Generate test report.According to the application, the comprehensiveness and accuracy of the coal mine heading machine with high performance wear-resistant hydraulic oil industrial performance test can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic oil performance testing, and particularly relates to a high-performance anti-wear hydraulic oil for a coal mine tunneling machine and an industrial performance testing method and system thereof. BACKGROUND

[0002] In the related art, the performance testing of hydraulic oil is usually carried out under laboratory control conditions, which may not completely simulate the complex and changeable environment of a coal mine, such as high dust, high humidity, vibration, impact and other comprehensive factors, that is, the industrial performance of the hydraulic oil cannot be comprehensively tested on the basis of laboratory testing combined with actual application conditions.

[0003] The information disclosed in the background section of this application is only intended to deepen the understanding of the general background of the application and should not be regarded as acknowledging or implying in any form that this information constitutes prior art known to those skilled in the art. SUMMARY

[0004] The present application provides a high-performance anti-wear hydraulic oil for a coal mine tunneling machine and an industrial performance testing method and system thereof, which can solve the technical problem that the industrial performance of the hydraulic oil cannot be comprehensively tested on the basis of laboratory testing combined with actual application conditions.

[0005] According to a first aspect of the present application, a high-performance anti-wear hydraulic oil for a coal mine tunneling machine and an industrial performance testing method thereof is provided, comprising:

[0006] In the viscosity testing period, viscosity test data is obtained;

[0007] According to the viscosity test data, a viscosity performance score is determined;

[0008] A first anti-oxidation experimental sample and a second anti-oxidation experimental sample are obtained;

[0009] In the first oxidation testing period, first oxidation test data of the first anti-oxidation experimental sample is obtained;

[0010] In the second oxidation testing period, second oxidation test data of the second anti-oxidation experimental sample is obtained;

[0011] According to the first oxidation test data and the second oxidation test data, an anti-oxidation performance score is determined;

[0012] In the application testing period, application test data is obtained;

[0013] According to the application test data, an actual performance score is determined;

[0014] According to the viscosity performance score, the anti-oxidation performance score and the actual performance score, a test report is generated.

[0015] According to the present application, determining a viscosity performance score from the viscosity test data includes:

[0016] Determining an oil sample flow time and a test temperature from the viscosity test data;

[0017] Obtaining a viscometer constant;

[0018] Determining a first kinematic viscosity and a second kinematic viscosity from the oil sample flow time, the test temperature, and the viscometer constant;

[0019] Determining a viscosity index from the first kinematic viscosity and the second kinematic viscosity;

[0020] Determining a viscosity performance score from the viscosity index.

[0021] According to the present application, determining a viscosity index from the first kinematic viscosity and the second kinematic viscosity includes:

[0022] Determining a first standard oil viscosity and a second standard oil viscosity from the second kinematic viscosity;

[0023] Determining a first difference from the second standard oil viscosity and the first kinematic viscosity;

[0024] Determining a second difference from the first standard oil viscosity and the second standard oil viscosity;

[0025] Determining a viscosity index from the first difference and the second difference.

[0026] According to the present application, obtaining a first oxidation test sample and a second oxidation test sample includes:

[0027] Determining a heading machine hydraulic system metal material;

[0028] Obtaining a metal test piece from the heading machine hydraulic system metal material;

[0029] Preparing the metal test piece to obtain the first oxidation test sample and the second oxidation test sample.

[0030] According to the present application, determining an oxidation resistance performance score from the first oxidation test data and the second oxidation test data includes:

[0031] Determining a first oxidation degree test score from the first oxidation test data;

[0032] Determining a second oxidation degree test score from the second oxidation test data;

[0033] According to the first oxidation degree test score and the second oxidation degree test score, an anti-oxidation performance score is determined.

[0034] According to the first oxidation test data, a first oxidation degree test score is determined, including:

[0035] According to the first oxidation test data, a first oxidation region is determined.

[0036] In the first oxidation region, a plurality of first sampling points are arranged.

[0037] A first corrosion depth of the first sampling point is obtained.

[0038] According to the first oxidation test data, a first sample mass and a first sample strength of the first anti-oxidation experimental sample are determined.

[0039] According to the first corrosion depth, the first sample mass and the first sample strength, a first oxidation degree test score is determined.

[0040] According to the first corrosion depth, the first sample mass and the first sample strength, a first oxidation degree test score is determined, including:

[0041] According to the formula

[0042]

[0043]

[0044]

[0045]

[0046] A first oxidation degree test score of the first anti-oxidation experimental sample is determined wherein, and is a preset weight value, max is a maximum value function, is a first corrosion depth corresponding to the kth first sampling point in the ith first oxidation region, is a preset corrosion depth threshold value, is a first sample mass of the first anti-oxidation experimental sample at a starting moment of a first oxidation test period, is a first sample mass of the first anti-oxidation experimental sample at an ending moment of the first oxidation test period, ​​​​​​​a first sample intensity of the first anti-oxidation experimental sample at a starting moment of the first oxidation test period, a first sample intensity of the first anti-oxidation experimental sample at an ending moment of the first oxidation test period, a number of first sampling points in the ith first oxidation area with a corrosion depth greater than a preset corrosion depth threshold, a number of first sampling points in the ith first oxidation area with a corrosion depth less than or equal to the preset corrosion depth threshold, K is a number of first sampling points in the first oxidation area, k≤K, n is a number of the first oxidation areas, i≤n, k, K, i and n are all positive integers.

[0047] According to the application, the actual performance score is determined according to the application test data, including:

[0048] According to the application test data, the environmental temperature, the hydraulic oil cleanliness, the hydraulic oil contamination, the hydraulic oil temperature and the hydraulic system pressure are determined;

[0049] According to the hydraulic oil cleanliness, a cleanliness identification result is determined;

[0050] According to the hydraulic oil contamination, a contamination identification result is determined;

[0051] According to the environmental temperature and the hydraulic oil temperature, a hydraulic oil temperature rise is determined;

[0052] According to the hydraulic oil temperature rise, a temperature rise identification result is determined;

[0053] According to the hydraulic system pressure at multiple moments in the application test period, an average pressure is determined;

[0054] According to the average pressure, a standard deviation of the hydraulic pressure is determined;

[0055] 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, an actual performance score is determined.

[0056] According to the application, the actual performance score is determined 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, including:

[0057] According to the formula

[0058] ,

[0059] determining the actual performance score wherein if is a conditional function, is the cleanliness identification result, is a preset multiple, a pollution degree identification result, a temperature rise identification result, a hydraulic system pressure of a jth moment of an application test period, a standard deviation of the hydraulic pressure, m is a number of moments of the application test period, j≤m, and j and m are positive integers.

[0060] According to a second aspect of the present application, a high-performance anti-wear hydraulic oil industrial performance test system for a coal mine tunneling machine is provided, comprising:

[0061] a viscosity data module configured to obtain viscosity test data in a viscosity test period;

[0062] a viscosity score module configured to determine a viscosity performance score based on the viscosity test data;

[0063] an experimental sample module configured to obtain a first anti-oxidation experimental sample and a second anti-oxidation experimental sample;

[0064] a first test module configured to obtain first oxidation test data of the first anti-oxidation experimental sample in a first oxidation test period;

[0065] a second test module configured to obtain second oxidation test data of the second anti-oxidation experimental sample in a second oxidation test period;

[0066] an oxidation score module configured to determine an anti-oxidation performance score based on the first oxidation test data and the second oxidation test data;

[0067] an application test module configured to obtain application test data in an application test period;

[0068] an actual performance module configured to determine an actual performance score based on the application test data;

[0069] a test report module configured to generate a test report based on the viscosity performance score, the anti-oxidation performance score, and the actual performance score.

[0070] ​​​Technical effects: According to the present application, the industrial performance of the hydraulic oil can be tested from the viscosity performance, the oxidation resistance performance and the actual application performance of the hydraulic oil, respectively, the comprehensiveness and the accuracy of the industrial performance test of the high-performance anti-wear hydraulic oil for the coal mine tunneling machine are improved. The first oxidation degree test score can be determined according to the first corrosion depth, the first sample mass and the first sample strength, in the calculation process, the overall corrosion severity of the first oxidation area can be determined according to the corrosion depth of the first sampling point with relatively serious corrosion depth and the corrosion depth of the first sampling point with relatively slight corrosion depth, further, the overall corrosion severity of the first anti-oxidation experimental sample can be determined according to the overall corrosion severity of the first oxidation area, and the oxidation degree of the first anti-oxidation experimental sample can be evaluated according to the overall corrosion severity, the mass change condition and the metal strength decrease condition of the first anti-oxidation experimental sample, the accuracy and the comprehensiveness of the first oxidation degree test score are improved. When determining the actual performance score, the actual performance score can be determined according to the cleanliness identification result, the pollution degree identification result, the temperature rise identification result, the hydraulic system pressure and the standard deviation of the hydraulic pressure, in the calculation process, the actual performance of the hydraulic oil can be evaluated according to the lubricating ability, the anti-foaming property, the thermal stability and the running stability of the hydraulic oil in the actual application, respectively, the comprehensiveness and the accuracy of the actual performance score are improved.

[0071] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application. Other features and aspects of the present application will become more apparent from the following detailed description, taken in conjunction with the accompanying drawings, which illustrate examples of the application. BRIEF DESCRIPTION OF DRAWINGS

[0072] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, brief introductions will be given to the drawings needed in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other embodiments can be obtained by those skilled in the art without creative effort on the basis of these drawings;

[0073] Figure 1 Exemplarily, a flowchart of the method for testing the industrial performance of the high-performance anti-wear hydraulic oil for the coal mine tunneling machine according to the embodiment of the present application is shown;

[0074] Figure 2 Exemplarily, a flowchart of the viscosity performance score calculation according to the embodiment of the present application is shown;

[0075] Figure 3 Exemplarily, a flowchart of obtaining the first anti-oxidation experimental sample and the second anti-oxidation experimental sample according to the embodiment of the present application is shown;

[0076] Figure 4 A flow chart of the calculation of the oxidation resistance performance score according to an embodiment of the present application is shown exemplarily.

[0077] Figure 5 A flow chart of the calculation of the actual performance score according to an embodiment of the present application is shown exemplarily.

[0078] Figure 6 A block diagram of the high-performance anti-wear hydraulic oil industrial performance test system for coal mine tunneling machines according to an embodiment of the present application is shown exemplarily. DETAILED DESCRIPTION

[0079] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described below in connection with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0080] The technical solutions of the present application will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described in some embodiments.

[0081] Figure 1 A flow chart of the high-performance anti-wear hydraulic oil industrial performance test method for coal mine tunneling machines according to an embodiment of the present application is shown exemplarily, and the method comprises:

[0082] Step S1, obtaining viscosity test data in a viscosity test period;

[0083] Step S2, determining a viscosity performance score according to the viscosity test data;

[0084] Step S3, obtaining a first anti-oxidation experimental sample and a second anti-oxidation experimental sample;

[0085] Step S4, obtaining first oxidation test data of the first anti-oxidation experimental sample in a first oxidation test period;

[0086] Step S5, obtaining second oxidation test data of the second anti-oxidation experimental sample in a second oxidation test period;

[0087] Step S6, determining an oxidation resistance performance score according to the first oxidation test data and the second oxidation test data;

[0088] Step S7, obtaining application test data in an application test period;

[0089] Step S8, determining an actual performance score according to the application test data;

[0090] Step S9, generating a test report according to the viscosity performance score, the oxidation resistance performance score and the actual performance score.

[0091] The industrial performance test method for the high-performance wear-resistant hydraulic oil for the coal mine tunneling machine according to the embodiment of the present application can test the industrial performance of the hydraulic oil from three aspects of the viscosity performance, the oxidation resistance performance and the actual application performance, thereby improving the comprehensiveness and accuracy of the industrial performance test of the high-performance wear-resistant hydraulic oil for the coal mine tunneling machine.

[0092] According to one embodiment of the present application, in step S1, the viscosity test data is obtained in a viscosity test period.

[0093] For example, in the viscosity test period, the hydraulic oil sample is respectively placed in a constant temperature bath at 40 degrees Celsius and 100 degrees Celsius, and after the hydraulic sample is kept stable, the viscosity test data of the hydraulic oil sample is recorded.

[0094] According to one embodiment of the present application, in step S2, the viscosity performance score is determined according to the viscosity test data.

[0095] Figure 2 An exemplary flow chart of the viscosity performance score calculation according to the embodiment of the present application is shown.

[0096] According to one embodiment of the present application, step S2 includes:

[0097] Step S21, determining the oil sample flow time and the test temperature according to the viscosity test data;

[0098] Step S22, obtaining the viscometer constant;

[0099] Step S23, determining the first kinematic viscosity and the second kinematic viscosity according to the oil sample flow time, the test temperature and the viscometer constant;

[0100] Step S24, determining the viscosity index according to the first kinematic viscosity and the second kinematic viscosity;

[0101] Step S25, determining the viscosity performance score according to the viscosity index.

[0102] For example, the test temperature is determined as 40 degrees Celsius and 100 degrees Celsius respectively, the time for the hydraulic oil sample to pass through the capillary at 40 degrees Celsius and 100 degrees Celsius in the constant temperature bath is determined, that is, the oil sample flow time, the capillary viscometer constant is obtained through the product manual of the capillary viscometer manufacturer, the kinematic viscosity at 40 degrees Celsius and 100 degrees Celsius is calculated respectively according to the oil sample flow time, the test temperature and the capillary viscometer constant, that is, the first kinematic viscosity and the second kinematic viscosity, the kinematic viscosity is determined according to the product of the capillary viscometer constant and the oil sample flow time, the viscosity index is calculated according to the first kinematic viscosity and the second kinematic viscosity, the greater the viscosity index, the lower the sensitivity of the oil product to temperature change, that is, the viscosity does not decrease too much at high temperature, and does not become too thick at low temperature, the better the viscosity performance of the oil product, the viscosity performance score is determined according to the ratio of the viscosity index difference and the set viscosity index threshold value, wherein the set viscosity index threshold value can be set as 120.

[0103] According to an embodiment of the present application, step S24 comprises:

[0104] Step S241, determining the first standard oil viscosity and the second standard oil viscosity according to the second kinematic viscosity;

[0105] Step S242, determining the first difference value according to the second standard oil viscosity and the first kinematic viscosity;

[0106] Step S243, determining the second difference value according to the first standard oil viscosity and the second standard oil viscosity;

[0107] Step S244, determining the viscosity index according to the first difference value and the second difference value.

[0108] For example, the kinematic viscosity of the low viscosity index (viscosity index equal to 0) standard oil at 40 degrees Celsius is obtained, that is, the first standard oil viscosity, the kinematic viscosity of the high viscosity index (viscosity index equal to 100) standard oil at 40 degrees Celsius is obtained, that is, the second standard oil viscosity; the first difference value is determined according to the second standard oil viscosity minus the first kinematic viscosity; the second difference value is determined according to the second standard oil viscosity minus the first standard oil viscosity; the viscosity index is determined according to the ratio of the first difference value and the second difference value, and the ratio is multiplied by 100.

[0109] According to an embodiment of the present application, in step S3, the first antioxidant experimental sample and the second antioxidant experimental sample are obtained.

[0110] Figure 3A flow chart of acquiring the first anti-oxidation experimental sample and the second anti-oxidation experimental sample according to an embodiment of the present application is shown exemplarily.

[0111] According to a first embodiment of the present application, the step S3 comprises:

[0112] In step S31, the metal material of the hydraulic system of the heading machine is determined.

[0113] In step S32, a metal test piece is acquired according to the metal material of the hydraulic system of the heading machine.

[0114] In step S33, the metal test piece is prepared to acquire the first anti-oxidation experimental sample and the second anti-oxidation experimental sample.

[0115] For example, the metal material of the hydraulic system of the heading machine is determined (e.g., galvanized steel), the same material as the metal material of the hydraulic system of the heading machine is selected to make a metal test piece; the metal test piece is polished with 400# and 600# sandpaper in sequence until the surface is smooth and scratch-free, and is cleaned with acetone for 10 minutes by ultrasonic cleaning to obtain the first anti-oxidation experimental sample and the second anti-oxidation experimental sample which are the same in quality and shape.

[0116] According to an embodiment of the present application, in step S4, in the first oxidation test period, first oxidation test data of the first anti-oxidation experimental sample is acquired.

[0117] For example, there are various samples of hydraulic oil with different proportions, such as A sample (1% of anti-oxidant, 2% of anti-wear agent, 0.1% of anti-rust agent, and 0.001% of anti-foam agent) and B sample (1.5% of anti-oxidant, 0.5% of anti-wear agent, 0.8% of anti-rust agent, and 0.002% of anti-foam agent), and the B sample is a common form of proportion of hydraulic oil, and the B sample is used as a standard sample for anti-oxidation test of hydraulic oil, in the first oxidation test period, the B sample is used to perform a metal catalytic oxidation experiment on the first anti-oxidation experimental sample to acquire first oxidation test data of the first anti-oxidation experimental sample, and the first oxidation test data includes the quality (weight) of the first anti-oxidation experimental sample, the strength (metal strength) of the first anti-oxidation experimental sample, and the corrosion area, etc.

[0118] According to an embodiment of the present application, in step S5, in the second oxidation test period, second oxidation test data of the second anti-oxidation experimental sample is acquired.

[0119] For example, in the second oxidation test period, the metal catalytic oxidation experiment is performed on the second anti-oxidation experimental sample using the hydraulic oil sample used in the viscosity test period, i.e., the A sample, second oxidation test data of the second anti-oxidation experimental sample is obtained, the second oxidation test data includes sample mass, metal strength, and corrosion area of the second anti-oxidation experimental sample, and the second oxidation test period is the same as the first oxidation test period in terms of experimental conditions except the used hydraulic oil.

[0120] According to one embodiment of the present application, in step S6, the anti-oxidation performance score is determined according to the first oxidation test data and the second oxidation test data.

[0121] Figure 4 An exemplary flowchart of the anti-oxidation performance score calculation according to an embodiment of the present application is shown.

[0122] According to one embodiment of the present application, step S6 includes:

[0123] In step S61, the first oxidation degree test score is determined according to the first oxidation test data.

[0124] In step S62, the second oxidation degree test score is determined according to the second oxidation test data.

[0125] In step S63, the anti-oxidation performance score is determined according to the first oxidation degree test score and the second oxidation degree test score.

[0126] For example, the oxidation degree of the first anti-oxidation experimental sample in the first oxidation test period is evaluated according to the first oxidation test data, and the first oxidation degree test score is determined; the oxidation degree of the second anti-oxidation experimental sample in the second oxidation test period is evaluated according to the second oxidation test data, and the second oxidation degree test score is determined, the calculation method of the second oxidation degree test score is the same as that of the first oxidation degree test score; the anti-oxidation performance score is determined according to the ratio of the second oxidation degree test score to the first oxidation degree test score, the smaller the ratio, the smaller the oxidation degree of the second anti-oxidation experimental sample relative to the oxidation degree of the first anti-oxidation experimental sample, and the better the anti-oxidation performance of the A sample relative to the anti-oxidation performance of the B sample.

[0127] According to one embodiment of the present application, step S61 includes:

[0128] In step S611, the first oxidation area is determined according to the first oxidation test data.

[0129] In step S612, a plurality of first sampling points are set in the first oxidation area.

[0130] Step S613: Obtain the first corrosion depth of the first sampling point;

[0131] Step S614: According to the first oxidation test data, determine the first sample quality and the first sample strength of the first anti-oxidation experimental sample;

[0132] Step S615: According to the first corrosion depth, the first sample quality and the first sample strength, determine the first oxidation degree test score.

[0133] For example, an image of the first anti-oxidation experimental sample at the end of the first oxidation test period is obtained, and the oxidation corrosion area of the first oxidation test period, that is, the first oxidation area, is determined using professional corrosion analysis software. In the first oxidation area, a plurality of first sampling points are uniformly arranged according to the shape and area of the oxidation area. The number of first sampling points is positively correlated with the size of the first oxidation area. The larger the first oxidation area, the more the number of first sampling points. The first corrosion depth at the first sampling point is determined using an ultrasonic thickness gauge. The weight and metal strength of the first anti-oxidation experimental sample at the beginning and end of the first oxidation test period are detected to determine the first sample quality and the first sample strength. According to the first oxidation area, the first corrosion depth, the first sample quality and the first sample strength, the oxidation degree of the first anti-oxidation experimental sample is evaluated, and the first oxidation degree test score is determined.

[0134] According to one embodiment of the present application, step S615 comprises: determining the first oxidation degree test score of the first anti-oxidation experimental sample according to formulas (1), (2) and (3) ,

[0135] (1),

[0136] (2),

[0137] (3),

[0138] wherein, , , , and is a preset weight value, max is a maximum value function, is the first corrosion depth of the kth first sampling point in the ith first oxidation area, is a preset corrosion depth threshold, is the first sample quality of the first anti-oxidation experimental sample at the beginning of the first oxidation test period, a first sample mass of the first anti-oxidation experimental sample at the end time of the first oxidation test period, a first sample intensity of the first anti-oxidation experimental sample at the start time of the first oxidation test period, a first sample intensity of the first anti-oxidation experimental sample at the end time of the first oxidation test period, a number of first sampling points in the ith first oxidation region whose corrosion depth is greater than the preset corrosion depth threshold, a number of first sampling points in the ith first oxidation region whose corrosion depth is less than or equal to the preset corrosion depth threshold, K is a number of first sampling points in the first oxidation region, k≤K, n is a number of first oxidation regions, i≤n, k, K, i and n are all positive integers.

[0139] According to one embodiment of the present application, a ratio of the first corrosion depth corresponding to the kth first sampling point in the ith first oxidation region to the preset corrosion depth threshold, the greater the ratio, the more serious the corrosion depth condition at the preset corrosion depth threshold, may be set to 0.01 mm.

[0140] According to one embodiment of the present application, in formula (1), the conditional function includes the following two cases, when the condition is met, it indicates that the corrosion depth condition at the kth sampling point is relatively serious, and the value of the conditional function is when the condition is met, it indicates that the corrosion depth at the kth sampling point is relatively slight, and the value of the conditional function is 0. When the number of first sampling points whose corrosion depth is relatively serious is greater, the value of the preset weight corresponding to the first sampling point is greater, indicates the maximum value of the sum of the product of the ratio of the first corrosion depth corresponding to the first sampling point whose corrosion depth condition is relatively serious in the ith first oxidation region to the preset corrosion depth threshold and the corresponding weight, for example, when the value of at the 1st first sampling point in the 1st first oxidation region is 1.1, the value of at the 2nd first sampling point is 2, and the value at the 3rd first sampling point is 1.5, the preset weights are , and respectively, then the value of is , which indicates that when the number of first sampling points whose corrosion depth condition is relatively serious in the 1st first oxidation region is greater, the influence of the overall corrosion condition of the first oxidation region becomes more serious with the increase of the number of first sampling points whose corrosion depth condition is relatively serious, wherein the preset weight the change of the value of the condition function the part of the change of the value of the condition function in the form of a linear function indicates that the more serious the corrosion depth condition at the individual first sampling point, the more uniformly the overall corrosion condition of the first oxidation region increases, the part of the change of the value of the condition function in the form of an exponential function indicates that the more the number of the first sampling points with the more serious corrosion depth condition, the more rapidly and non-uniformly the overall corrosion condition of the first oxidation region increases, and the first mode of finding the maximum value by using the assigned weight value can be used to determine the condition in which the first sampling point with the more serious corrosion depth condition has the most serious influence on the overall corrosion of the first oxidation region.

[0141] According to one embodiment of the present application, in formula (1), the condition function the value of the condition function includes the following two cases: when the condition is met, it indicates that the corrosion depth condition at the kth sampling point is relatively mild, and the value of the condition function is when the condition is not met, the value of the condition function is 0. The more the number of the first sampling points with the relatively mild corrosion depth among the first sampling points, the greater the value of the preset weight value corresponding to the first sampling points, indicates the maximum value of the sum of the product of the ratio of the first corrosion depth of the first sampling point with the relatively mild corrosion depth condition in the ith first oxidation region to the preset corrosion depth threshold and the corresponding weight value, for example, when the value of at the 1st first sampling point in the 1st first oxidation region is 0.5, the value of at the 2nd first sampling point is 0.7, and the value at the 3rd first sampling point is 0.6, and the preset weight values are , and respectively, then the value of is , indicating that the more the number of the first sampling points with the relatively mild corrosion depth condition in the 1st first oxidation region, the more serious the influence on the overall corrosion condition of the first oxidation region with the increase of the number of the first sampling points with the relatively mild corrosion depth condition, wherein the part of the preset weight value in the form of a linear function indicates that the more serious the corrosion depth condition at the individual first sampling point, the more uniformly the overall corrosion of the first oxidation region increases, and the first mode of finding the maximum value by using the assigned weight value can be used to determine the condition in which the first sampling point with the relatively mild corrosion depth condition has the most serious influence on the overall corrosion of the first oxidation region.

[0142] According to one embodiment of the present application, The corrosion depth condition of all the first sampling points in the first oxidation region represents the most serious condition of the overall corrosion influence on the first oxidation region. The overall corrosion influence of all the oxidation regions of the first anti-oxidation experimental sample represents the most serious condition.

[0143] According to one embodiment of the present application, The relative difference between the first sample mass at the beginning time and the sample mass at the end time of the first oxidation test period for the first anti-oxidation experimental sample, the larger the ratio, the greater the mass change of the first anti-oxidation experimental sample in the first oxidation test period, and the more serious the oxidation reaction, The relative difference between the first sample strength at the beginning time and the first sample strength at the end time of the first oxidation test period for the first anti-oxidation experimental sample, the larger the ratio, the greater the decrease in metal strength of the first anti-oxidation experimental sample in the first oxidation test period, and the more serious the oxidation reaction.

[0144] According to one embodiment of the present application, in formula (2), The condition function is summed according to the number of first sampling points, representing the number of first sampling points with serious corrosion depth conditions in the ith first oxidation region, wherein the condition function is the same as in formula (1) and will not be repeated here. In formula (3), The condition function is summed according to the number of first sampling points, representing the number of first sampling points with mild corrosion depth conditions in the ith first oxidation region, wherein the condition function is the same as in formula (1) and will not be repeated here.

[0145] According to one embodiment of the present application, The overall corrosion severity condition, mass change condition and metal strength decrease condition of the first anti-oxidation experimental sample are determined according to the three aspects to determine the first oxidation degree test score.

[0146] In this way, the first oxidation degree test score can be determined according to the first corrosion depth, the first sample mass and the first sample strength, in the calculation process, the overall corrosion severity of the first oxidation region can be determined according to the corrosion depth at the first sampling point with relatively serious corrosion depth condition and the corrosion depth at the first sampling point with relatively slight corrosion depth condition, further, the overall corrosion severity of the first anti-oxidation experimental sample can be determined according to the overall corrosion severity of the first oxidation region, and the oxidation degree of the first anti-oxidation experimental sample can be evaluated according to the overall corrosion severity, the mass change condition and the metal strength decrease condition of the first anti-oxidation experimental sample, so that the accuracy and comprehensiveness of the first oxidation degree test score are improved.

[0147] According to an embodiment of the present application, in step S7, the application test data is obtained in the application test period.

[0148] For example, the hydraulic oil used in the viscosity test period and the second oxidation test period is applied to the hydraulic system of the coal mine tunneling machine in the application test period, the performance in the actual application is verified, and the application test data is obtained.

[0149] According to an embodiment of the present application, in step S8, the actual performance score is determined according to the application test data.

[0150] Figure 5 An exemplary flowchart of the actual performance score calculation according to an embodiment of the present application is shown.

[0151] According to an embodiment of the present application, step S8 comprises:

[0152] In step S81, the environment temperature, the hydraulic oil cleanliness, the hydraulic oil contamination degree, the hydraulic oil temperature and the hydraulic system pressure are determined according to the application test data.

[0153] In step S82, the cleanliness identification result is determined according to the hydraulic oil cleanliness.

[0154] In step S83, the contamination degree identification result is determined according to the hydraulic oil contamination degree.

[0155] In step S84, the hydraulic oil temperature rise is determined according to the environment temperature and the hydraulic oil temperature.

[0156] In step S85, the temperature rise identification result is determined according to the hydraulic oil temperature rise.

[0157] In step S86, the average pressure is determined according to the hydraulic system pressure at multiple time points in the application test period.

[0158] In step S87, the standard deviation of the hydraulic pressure is determined according to the average pressure.

[0159] Step S88, according to the cleanliness identification result, the pollution identification result, the temperature rise identification result, the hydraulic system pressure and the standard deviation of the hydraulic pressure, determine the actual performance score.

[0160] For example, in the application test cycle, the environment temperature is obtained by the temperature sensor arranged around the coal mine tunneling machine, the hydraulic oil cleanliness is obtained by using the automatic particle counter method, the hydraulic oil pollution degree is determined by using the Karl Fischer method and the vacuum degassing method, the hydraulic oil temperature and the hydraulic system pressure are obtained by using the temperature sensor and the pressure sensor installed in the coal mine tunneling machine; if the hydraulic oil cleanliness is greater than the preset hydraulic oil cleanliness threshold value, it indicates that the hydraulic oil cleanliness meets the standard, then the cleanliness identification result is 1, otherwise, the cleanliness identification result is 0, the preset hydraulic oil cleanliness threshold value can be determined according to the international standard ISO 4406 and NAS 163; if the hydraulic oil pollution degree is less than the preset hydraulic oil pollution degree threshold value, it indicates that the hydraulic oil pollution degree meets the standard, then the pollution identification result is 1, otherwise, the pollution identification result is 0, the preset hydraulic oil pollution degree threshold value can be determined according to the international standard ISO 3722; the hydraulic oil temperature rise is determined according to the maximum value of the hydraulic oil temperature in the application test cycle minus the environment temperature; if the hydraulic oil temperature rise is less than the preset hydraulic oil temperature rise threshold value, it indicates that the hydraulic oil temperature rise 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 value can be set to 30 degrees Celsius; the average pressure is determined according to the hydraulic system pressure at multiple times in the application test cycle; the standard deviation of the hydraulic system pressure at multiple times in the application test cycle is calculated according to the average pressure; the performance status of the hydraulic oil in the actual application is evaluated according to the cleanliness identification result, the pollution identification result, the temperature rise identification result, the hydraulic system pressure and the standard deviation of the hydraulic pressure, and the actual performance score is determined.

[0161] According to one embodiment of the present application, step S88 comprises: determining the actual performance score according to formula (2) ,

[0162] (4),

[0163] Wherein, if is a conditional function, is the cleanliness identification result, is the preset multiple, is the pollution identification result, is the temperature rise identification result, , , , is the hydraulic system pressure at the jth time of the application test cycle, is a standard deviation of the hydraulic pressure, m is a number of time points of the application test period, j≤m, j and m are positive integers.

[0164] According to one embodiment of the present application, is a cleanliness identification result, when is equal to 1, it indicates that the hydraulic oil cleanliness meets the standard, and indicates that the lubricating ability of the hydraulic oil in the actual application is relatively strong, is a contamination identification result, when is equal to 1, it indicates that the anti-foaming ability of the hydraulic oil in the actual application is relatively strong, is a temperature rise identification result, when is equal to 1, it indicates that the thermal stability and heat dissipation efficiency of the hydraulic oil in the actual application are relatively strong.

[0165] According to one embodiment of the present application, in formula (4), the value of the condition function includes the following two cases: when the condition is met, it indicates that the hydraulic system pressure at the jth time point of the application test period is within an interval centered on the average hydraulic system pressure and having an interval length of twice the standard deviation of the hydraulic pressure of the preset multiple, and the value of the condition function is 1; when the condition is not met, the value of the condition function is 0. If the hydraulic system pressure at the jth time point of the application test period meets the above condition, it indicates that the deviation between the hydraulic system pressure and the average value is small, and the hydraulic system pressure at the jth time point is relatively stable, otherwise, it can be considered that the deviation between the hydraulic system pressure at the jth time point and the average value is large, and the hydraulic system pressure at the jth time point may be abnormal. is a ratio of the number of time points at which the hydraulic system pressure is relatively stable to the number of time points of the application test period. The larger the ratio, the more stable the hydraulic system pressure in the application test period, and the stronger the running stability of the hydraulic oil in the actual application.

[0166] According to one embodiment of the present application, is determined according to the lubricating ability, the anti-foaming ability, the thermal stability and the running stability of the hydraulic oil in the actual application.

[0167] In this way, the actual performance score can be determined 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. In the calculation process, the actual performance of the hydraulic oil can be evaluated according to the lubricating ability, the anti-foaming ability, the thermal stability and the running stability of the hydraulic oil in the actual application, respectively, which improves the comprehensiveness and accuracy of the actual performance score.

[0168] According to one embodiment of the present application, in step S9, a test report is generated according to the viscosity performance score, the oxidation resistance performance score and the actual performance score.

[0169] 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 oxidation resistance performance score is less than or equal to 1, it indicates that the oxidation resistance performance of the hydraulic oil is relatively good, if the oxidation resistance performance score is greater than 1, it indicates that the oxidation resistance performance of the hydraulic oil is relatively poor, if the actual performance score is less than 3.9, it indicates that the actual performance of the hydraulic oil is poor, if the actual performance score is greater than or equal to 3.9, it indicates that the actual performance of the hydraulic oil is good.

[0170] The industrial performance test method for the high-performance anti-wear hydraulic oil for coal mine tunneling machines according to the embodiment of the present application can test the industrial performance of the hydraulic oil from three aspects of viscosity performance, oxidation resistance performance and actual application performance, thereby improving the comprehensiveness and accuracy of the industrial performance test for the high-performance anti-wear hydraulic oil for coal mine tunneling machines. The first oxidation degree test score can be determined according to the first corrosion depth, the first sample mass and the first sample strength. In 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 serious corrosion depth and the corrosion depth at the first sampling point with relatively slight corrosion depth. Further, the overall corrosion severity of the first oxidation resistance experimental sample can be determined according to the overall corrosion severity of the first oxidation area, and the oxidation degree of the first oxidation resistance experimental sample can be evaluated according to the overall corrosion severity, the mass change condition and the metal strength decrease condition of the first oxidation resistance experimental sample, thereby 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. In the calculation process, the actual performance of the hydraulic oil can be evaluated from four aspects of lubricating ability, anti-foaming property, thermal stability and running stability in actual application, thereby improving the comprehensiveness and accuracy of the actual performance score.

[0171] Figure 6 An exemplary block diagram of the industrial performance test system for the high-performance anti-wear hydraulic oil for coal mine tunneling machines according to the embodiment of the present application is shown. The system comprises:

[0172] A viscosity data module is configured to acquire viscosity test data in a viscosity test period.

[0173] A viscosity score module is configured to determine a viscosity performance score according to the viscosity test data.

[0174] an experimental sample module configured to obtain a first anti-oxidation experimental sample and a second anti-oxidation experimental sample;

[0175] a first test module configured to obtain first oxidation test data of the first anti-oxidation experimental sample in a first oxidation test period;

[0176] a second test module configured to obtain second oxidation test data of the second anti-oxidation experimental sample in a second oxidation test period;

[0177] an oxidation score module configured to determine an anti-oxidation performance score according to the first oxidation test data and the second oxidation test data;

[0178] an application test module configured to obtain application test data in an application test period;

[0179] an actual performance module configured to determine an actual performance score according to the application test data;

[0180] a test report module configured to generate a test report according to the viscosity performance score, the anti-oxidation performance score and the actual performance score.

[0181] The present application can be a method, an apparatus, a system, and / or a computer program product. The computer program product can include a computer readable storage medium having computer readable program instructions embodied therewith, wherein the computer readable program instructions are configured to cause a processor to perform various aspects of the present application.

[0182] Those skilled in the art understand that the embodiments of the present application shown in the above description and the accompanying drawings are only examples and do not limit the present application. The purpose of the present application has been fully and effectively achieved. The function and structural principle of the present application has been shown and explained in the embodiments, and the embodiments of the present application can be modified or changed in any way without departing from the principle.

Claims

1. A method for testing the industrial performance of high-performance anti-wear hydraulic oil for use in a coal mine heading machine, characterized in that, The method comprises: acquiring viscosity test data in a viscosity test period; determining a viscosity performance score according to the viscosity test data; acquiring a first antioxidant experimental sample and a second antioxidant experimental sample; acquiring first oxidation test data of the first antioxidant experimental sample in a first oxidation test period; acquiring second oxidation test data of the second antioxidant experimental sample in a second oxidation test period; determining an antioxidant performance score according to the first oxidation test data and the second oxidation test data; acquiring application test data in an application test period; determining an actual performance score according to the application test data; generating a test report according to the viscosity performance score, the antioxidant performance score, and the actual performance score; determining an actual performance score according to the application test data, comprising: determining an environmental temperature, a hydraulic oil cleanliness, a hydraulic oil contamination, a hydraulic oil temperature, and a hydraulic system pressure according to the application test data; determining a cleanliness identification result according to the hydraulic oil cleanliness; determining a contamination identification result according to the hydraulic oil contamination; determining a hydraulic oil temperature rise according to the environmental temperature and the hydraulic oil temperature; determining a temperature rise identification result according to the hydraulic oil temperature rise; determining an average pressure according to hydraulic system pressures at multiple time points in the application test period; determining a standard deviation of hydraulic pressure according to the average pressure; 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 hydraulic pressure; 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 hydraulic pressure, comprising: according to the formula ， Determine the actual performance score wherein if is a conditional function, is a cleanliness identification result, is a preset multiple, is a contamination identification result, is a temperature rise identification result, , , , is the hydraulic system pressure at the jth moment of the application test period, is the standard deviation of the hydraulic pressure, m is the number of moments of the application test period, j≤m, j and m are both positive integers.

2. The industrial performance test method for high-performance anti-wear hydraulic oil for coal mine heading machines according to claim 1, characterized by, determining a viscosity performance score according to the viscosity test data, comprising: determining an oil sample flow time and a test temperature according to the viscosity test data; acquiring a viscometer constant; determining a first kinematic viscosity and a second kinematic viscosity according to the oil sample flow time, the test temperature, and the viscometer constant; determining a viscosity index according to the first kinematic viscosity and the second kinematic viscosity; determining a viscosity performance score according to the viscosity index.

3. The industrial performance test method for high-performance anti-wear hydraulic oil for coal mine heading machines according to claim 2, characterized in that, determining a viscosity index according to the first kinematic viscosity and the second kinematic viscosity, comprising: determining a first standard oil viscosity and a second standard oil viscosity according to the second kinematic viscosity; determining a first difference value according to the second standard oil viscosity and the first kinematic viscosity; determining a second difference value according to the first standard oil viscosity and the second standard oil viscosity; determining a viscosity index according to the first difference value and the second difference value.

4. The industrial performance test method for high-performance anti-wear hydraulic oil for coal mine heading machines according to claim 1, characterized in that, acquiring a first antioxidant experimental sample and a second antioxidant experimental sample, comprising: determining a metal material of a hydraulic system of a heading machine; acquiring a metal test piece according to the metal material of the hydraulic system of the heading machine; preparing the metal test piece to acquire the first antioxidant experimental sample and the second antioxidant experimental sample.

5. The industrial performance test method for high-performance anti-wear hydraulic oil for coal mine heading machines according to claim 1, characterized by, determining an antioxidant performance score according to the first oxidation test data and the second oxidation test data, comprising: determining a first oxidation degree test score according to the first oxidation test data; determining a second oxidation degree test score according to the second oxidation test data; determining an oxidation resistance performance score according to the first oxidation degree test score and the second oxidation degree test score.

6. The industrial performance test method for high-performance anti-wear hydraulic oil for coal mine heading machines according to claim 5, characterized in that, determining a first oxidation degree test score according to the first oxidation test data, comprising: determining a first oxidation area according to the first oxidation test data; setting a plurality of first sampling points in the first oxidation area; acquiring a first corrosion depth of the first sampling points; determining a first sample quality and a first sample strength of the first oxidation resistance experimental sample according to the first oxidation test data; determining a first oxidation degree test score according to the first corrosion depth, the first sample quality and the first sample strength.

7. The industrial performance test method for high-performance anti-wear hydraulic oil for coal mine heading machines according to claim 6, characterized in that, determining a first oxidation degree test score according to the first corrosion depth, the first sample quality and the first sample strength, comprising: according to the formula ， determining a first oxidation degree test score of the first anti-oxidation experimental sample wherein, , , , and is a preset weight value, max is a maximum value function, is a first corrosion depth corresponding to a kth first sampling point in an ith first oxidation region, is a preset corrosion depth threshold value, is a first sample mass of the first anti-oxidation experimental sample at a start time of the first oxidation test period, is a first sample mass of the first anti-oxidation experimental sample at an end time of the first oxidation test period, is a first sample intensity of the first anti-oxidation experimental sample at the start time of the first oxidation test period, is a first sample intensity of the first anti-oxidation experimental sample at the end time of the first oxidation test period, is a number of first sampling points in the ith first oxidation region with a corrosion depth greater than the preset corrosion depth threshold value, is a number of first sampling points in the ith first oxidation region with a corrosion depth less than or equal to the preset corrosion depth threshold value, K is a number of first sampling points in the first oxidation region, k≤K, n is a number of first oxidation regions, i≤n, and k, K, i, and n are all positive integers.

8. A high performance anti-wear hydraulic fluid industrial performance test system for coal mine heading machine for performing the method of any one of claims 1-7, characterized by, comprising: a viscosity data module, configured to acquire viscosity test data in a viscosity test period; a viscosity score module, configured to determine a viscosity performance score according to the viscosity test data; an experimental sample module, configured to acquire a first oxidation resistance experimental sample and a second oxidation resistance experimental sample; a first test module, configured to acquire first oxidation test data of the first oxidation resistance experimental sample in a first oxidation test period; a second test module, configured to acquire second oxidation test data of the second oxidation resistance experimental sample in a second oxidation test period; an oxidation score module, configured to determine an oxidation resistance performance score according to the first oxidation test data and the second oxidation test data; an application test module, configured to acquire application test data in an application test period; an actual performance module, configured to determine an actual performance score according to the application test data; a test report module, configured to generate a test report according to the viscosity performance score, the oxidation resistance performance score and the actual performance score.

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