CN113984566B - Micro-lubrication-based friction wear machine for comparison test ring block and test method thereof - Google Patents
Micro-lubrication-based friction wear machine for comparison test ring block and test method thereof Download PDFInfo
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- CN113984566B CN113984566B CN202111200419.8A CN202111200419A CN113984566B CN 113984566 B CN113984566 B CN 113984566B CN 202111200419 A CN202111200419 A CN 202111200419A CN 113984566 B CN113984566 B CN 113984566B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
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Abstract
The invention discloses a micro-lubrication-based contrast test ring block friction wear machine and a test method thereof. The friction and wear contrast test can be simultaneously carried out on one ring block friction and wear machine, the test time is saved, the test conditions can be accurately controlled, and the consistency of the same test conditions and the difference of the contrast test conditions are ensured.
Description
Technical Field
The invention relates to the technical field of friction and wear test devices, in particular to a micro-lubrication-based friction and wear machine for a comparison test ring block and a test method thereof.
Background
The ring block friction wear testing machine is mainly used for the wear performance research of various metal and non-metal materials and coatings, is also used for the lubricating performance test of lubricating oil and lubricating grease, and is particularly suitable for the evaluation of the anti-abrasion performance of the oil of medium and high-grade automobile gears. And the ring block friction wear testing machine based on the minimal quantity lubrication is mainly used for researching the material friction wear mechanism and the minimal quantity lubrication mechanism in the minimal quantity lubrication state. However, the existing trace lubricating ring block friction wear testing machine cannot perform a contrast test, when the contrast test is required, a mode that a plurality of friction wear testing machines are simultaneously performed or one friction wear testing machine is sequentially performed is often adopted, the contrast test mode has the problems of high test cost or long test time, data collection and contrast are difficult, and test conditions cannot be accurately controlled.
Disclosure of Invention
The invention aims to solve the problems, provides a contrast test ring block friction wear machine based on micro-lubrication and a test method thereof, well solves the problems, can simultaneously perform a contrast test of friction wear on one ring block friction wear machine, saves test time, can accurately control test conditions, and ensures the consistency of the same test conditions and the difference of the contrast test conditions.
The invention provides a micro-lubrication-based contrast test ring block friction wear machine which comprises a seal test cavity and a controller, wherein the seal test cavity is divided into a first seal test cavity and a second seal test cavity by a seal partition plate arranged in the middle, friction wear assemblies, adjustable micro-lubrication assemblies, adjustable pressure assemblies, adjustable temperature assemblies, adjustable acid liquor assemblies and adjustable alkali liquor assemblies are arranged in the first seal test cavity and the second seal test cavity respectively, a common lubrication assembly is further arranged in the first seal test cavity, and the controller is used for controlling the friction wear assemblies, the adjustable micro-lubrication assemblies, the adjustable pressure assemblies, the adjustable temperature assemblies, the adjustable acid liquor assemblies, the adjustable alkali liquor assemblies and the common lubrication assemblies.
Furthermore, the friction and wear assembly comprises a guide rail and a sliding block in sliding connection with the guide rail, a test block fixing device is arranged on the sliding block, a test ring is arranged on the lower portion of the guide rail, and a force sensor is further arranged on the sliding block.
Furthermore, the adjustable micro-lubricating assembly comprises an adjustable gas supply pipeline and an adjustable lubricant supply pipeline, the adjustable gas supply pipeline and the adjustable lubricant supply pipeline are connected through an oil-gas mixer, the rear end of the oil-gas mixer is connected with a lubricant splitter, the lubricant splitter is connected with a common lubricating spray head and a micro-lubricating pipeline, the micro-lubricating pipeline is connected with a micro-lubricating splitter, the micro-lubricating splitter is connected with micro-lubricating spray heads respectively arranged in the first sealing test cavity and the second sealing test cavity, and a valve is arranged in front of the lubricant splitter and the common lubricating spray head; and a valve is arranged in front of the micro-lubricating flow divider and the micro-lubricating spray head.
Furthermore, the adjustable gas supply pipeline comprises an air compressor, a gas source processor, a two-position two-way solenoid valve and a first flow divider which are sequentially connected through pipelines, a first passage of the first flow divider is connected with a pneumatic frequency generator, a second passage of the first flow divider is connected with a second flow divider, and a first passage of the second flow divider is connected with the oil-gas mixer through a pressure reducing valve, a pressure gauge, a throttle valve and a flowmeter.
Furthermore, the adjustable lubricant supply pipeline comprises a lubricating oil tank and a pneumatic pump which are sequentially connected through a pipeline, the pneumatic pump is connected with the oil-gas mixer through a pressure reducing valve, a pressure gauge, a throttle valve and a flowmeter, and the pneumatic frequency generator is in power connection with the pneumatic pump.
Furthermore, the second route of second shunt is connected with the third shunt, the first route of third shunt is connected with adjustable pressure assembly, pressure assembly includes booster pump, relief pressure valve, manometer, choke valve, flowmeter and the air pressure boost shunt that connects gradually through the pipeline with the first route of third shunt, air pressure boost shunt links to each other with the air pressure boost shower nozzle that sets up respectively in first sealed test cavity and the sealed test cavity of second, still is provided with the valve between air pressure boost shunt and the air pressure boost shower nozzle, pressure assembly still includes the pressure sensor who sets up respectively in first sealed test cavity and the sealed test cavity of second with adjustable pressure assembly.
Furthermore, the second route of third shunt is connected with fourth shunt, the first route of fourth shunt is connected with adjustable acidizing fluid subassembly, acidizing fluid subassembly includes acidizing fluid oil tank, pneumatic pump, relief pressure valve, manometer, choke valve, flowmeter and the acidizing fluid shunt that connects gradually through pipeline and the first route of fourth shunt, the acidizing fluid shunt links to each other with the acidizing fluid shower nozzle that sets up respectively in first sealed experimental chamber and the sealed experimental chamber of second, be provided with the valve between acidizing fluid shunt and the acidizing fluid shower nozzle.
Further, the second route of fourth shunt is connected with alkali lye subassembly with adjustable, alkali lye subassembly with adjustable includes that the second route through pipeline and fourth shunt connects gradually alkali lye oil tank, pneumatic pump, relief pressure valve, manometer, choke valve, flowmeter and alkali lye shunt, the alkali lye shunt links to each other with the alkali lye shower nozzle that sets up respectively in first sealed test chamber and the sealed test chamber of second, be provided with the valve between alkali lye shunt and the alkali lye shower nozzle, first sealed test chamber and the sealed test chamber of second all are provided with the PH sensor.
Further, temperature components includes hot plate and temperature sensor with adjustable, all be provided with hot plate and temperature sensor in first sealed test chamber and the sealed test chamber of second.
The invention also provides a ring block friction wear comparison test method, which comprises the steps of adopting any one of the comparison test ring block friction wear machines based on the minimal quantity lubrication;
when the variable of the comparison test is the material and the size of the test block, the sealing partition plate is taken down, and the first sealing test cavity is communicated with the second sealing test cavity;
when the variables of the comparison test are temperature, pressure, acid-base environment, micro-lubrication and common lubrication modes, the first sealing test cavity and the second sealing test cavity are separated through the sealing partition plate to form an independent sealing test space.
The invention has the beneficial effects that:
1. according to the invention, a sealing test cavity is divided into a first sealing test cavity and a second sealing test cavity through a sealing partition plate, so that a ring block friction wear machine can form two independent sealing test cavities, and comparison tests of conditions such as temperature, pressure, acid-base environment, trace lubrication and common lubrication modes are carried out at the same time; when the sealing partition plate is taken down, the first sealing test cavity is communicated with the second sealing test cavity, and at the moment, the comparison tests of the materials, the sizes and the like of the test blocks are simultaneously carried out in the same sealing test cavity, namely, the comparison tests of a plurality of test blocks can be simultaneously carried out, so that the test time is saved, the cost of test equipment is saved, and the consistency of the same test condition and the difference of the comparison test condition are also ensured;
2. the friction force and the speed of the friction and wear assembly, the speed and the concentration of the trace lubricating liquid of the adjustable trace lubricating assembly, the pressure of the adjustable pressure assembly, the temperature of the adjustable temperature assembly, the pH value of the adjustable acid liquid assembly and the adjustable alkali liquid assembly and the opening and closing of the common lubricating assembly are controlled by the controller, the test conditions can be accurately controlled, meanwhile, the collection and analysis of test data are facilitated, the adjustable trace lubricating assembly, the adjustable pressure assembly, the adjustable temperature assembly, the adjustable acid liquid assembly and the adjustable alkali liquid assembly provide power and raw materials through the same air compressor, and the equipment cost and the space are saved.
Drawings
FIG. 1 is a schematic view of the internal structure of a minimal quantity lubrication based friction wear machine for a comparative test ring block according to the present invention;
FIG. 2 is a schematic diagram of a hydraulic circuit of a pipeline in a minimal quantity lubrication-based friction-wear machine for a comparative test ring block of the invention;
in the figure: 1. a controller; 2. sealing the partition plate; 3. a first sealed test chamber; 4. a second sealed test chamber; 5. a frictional wear assembly; 6. a common lubricating spray head; 7. an oil-gas mixer; 8. a micro-lubricating spray head; 9. a pneumatic frequency generator; 10. a pressure gauge; 11. a throttle valve; 12. a flow meter; 13. a pneumatic pump; 14. a booster pump; 15. an air pressurizing nozzle; 16. a pressure sensor; 17. an acid liquor tank; 18. an acid liquor spray head; 19. an alkaline liquor tank; 20. an alkali liquor spray head; 21. a pH sensor; 22. heating plates; 23. a temperature sensor; 24. a lubricant diverter; 25. an air pressurization flow divider, 26 and an acid liquid flow divider; 27. an alkali liquor splitter; 28. and (4) micro-lubricating the flow divider.
Detailed Description
In order to make the objects, 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 drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", and the like indicate orientations or positions
The relationships are based on the orientations and positional relationships shown in the drawings or the orientations and positional relationships conventionally used to place the products of the invention in use, are for convenience in describing the invention and simplifying the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first," "second," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
The first embodiment is as follows: as shown in fig. 1-2, the invention provides a minimal quantity lubrication-based friction-wear machine for a contrast test ring block, which comprises a seal test cavity and a controller 1, wherein the seal test cavity is divided into a first seal test cavity 3 and a second seal test cavity 4 by a seal partition plate 2 arranged in the middle, the first seal test cavity 3 and the second seal test cavity 4 are respectively internally provided with a friction-wear assembly 5, an adjustable minimal quantity lubrication assembly, an adjustable pressure assembly, an adjustable temperature assembly, an adjustable acid assembly and an adjustable alkali liquor assembly, the first seal test cavity 3 is also internally provided with a common lubrication assembly, and the controller 1 is used for controlling the friction-wear assembly 5, the adjustable minimal quantity lubrication assembly, the adjustable pressure assembly, the adjustable temperature assembly, the adjustable acid assembly, the adjustable alkali liquor assembly and the common lubrication assembly.
The friction wear assembly 5 comprises a guide rail and a sliding block connected with the guide rail in a sliding mode, a test block fixing device is arranged on the sliding block, a test ring is arranged on the lower portion of the guide rail, and a force sensor is further arranged on the sliding block. All be provided with friction and wear subassembly 5 in first sealed test chamber 3 and the sealed test chamber 4 of second, during the use, the test block passes through test block fixing device to be fixed on the slider, and the slider slides on the guide rail, is close to the test ring, through the rotation of test ring, rubs the test block, carries out the friction and wear test. The force sensor on the sliding block is used for collecting friction torque, friction force data and the like received on the test block, uploading the data to the controller 1, and performing unified summary analysis.
The adjustable micro-lubricating assembly comprises an adjustable gas supply pipeline and an adjustable lubricant supply pipeline, the adjustable gas supply pipeline and the adjustable lubricant supply pipeline are connected through an oil-gas mixer 7, the rear end of the oil-gas mixer 7 is connected with a lubricant flow divider 24, the lubricant flow divider 24 is connected with a common lubricating spray head 6 and a micro-lubricating pipeline, the micro-lubricating pipeline is connected with a micro-lubricating flow divider 28, the micro-lubricating flow divider 28 is connected with micro-lubricating spray heads 8 respectively arranged in a first sealing test cavity 3 and a second sealing test cavity 4, and a valve is arranged in front of the lubricant flow divider 24 and the common lubricating spray head 6; a valve is arranged in front of the micro-lubricating flow divider 28 and the micro-lubricating spray head 8; the common lubricating spray head and the trace lubricating spray head are purchased from outsourcing. The adjustable gas supply pipeline comprises an air compressor, a gas source processor, a two-position two-way solenoid valve and a first flow divider which are sequentially connected through a pipeline, a first passage of the first flow divider is connected with a pneumatic frequency generator 9, a second passage of the first flow divider is connected with a second flow divider, and a first passage of the second flow divider is connected with an oil-gas mixer 7 through a pressure reducing valve, a pressure gauge 10, a throttle valve 11 and a flowmeter 12. The adjustable lubricant supply pipeline comprises a lubricating oil tank and a pneumatic pump 13 which are sequentially connected through a pipeline, the pneumatic pump 13 is connected with the oil-gas mixer 7 through a pressure reducing valve, a pressure gauge 10, a throttle valve 11 and a flowmeter 12, and the pneumatic frequency generator 9 is in power connection with the pneumatic pump 13.
That is, the degree of atomization of the trace lubricant is adjusted by an adjustable lubricant supply line and an adjustable gas supply line, the adjustable lubricant supply line and the adjustable gas supply line are connected with a lubricant splitter 24 and a trace lubrication sprayer 8 through an oil-gas mixer 7, and the adjustable gas supply line provides power for the adjustable lubricant supply line through a pneumatic frequency generator 9. The pressure, flow and the like of the gas and the lubricant before mixing can be controlled according to the requirements, so that the atomization degree of the trace lubricant is controlled, and the intelligent control of a trace lubrication system is realized; meanwhile, the research on the material friction wear mechanism and the minimal quantity lubrication mechanism in a minimal quantity lubrication state is realized on a comparison test ring block friction wear testing machine; the control of the testing machine is realized, and a comparison testing method is provided. The two micro-lubricating nozzles 8 respectively spray the same micro-lubricating agents into the first sealed test cavity 3 and the second sealed test cavity 4, namely the micro-lubricating environments of the first sealed test cavity 3 and the second sealed test cavity 4 are the same, and the comparison of other condition variables can be carried out. The front ends of the two micro-lubricating nozzles 8 are provided with valves, the spraying of micro-lubricating agents can be controlled by opening and closing the valves, the micro-lubricating nozzles 8 in the first sealed test chamber 3 can also be closed, a common lubricating assembly is opened, and the common lubricating assembly comprises a common lubricating nozzle 6 and a valve arranged at the front end of the common lubricating nozzle. The common lubrication nozzle 6 can discharge the lubricant discharged from the lubricant distributor 24, so that the conventional existing lubricant lubrication is realized. At the moment, micro-lubrication is performed in the first sealed test cavity 3, and common lubrication is performed in the second sealed test cavity 4, so that the friction and wear comparison between the micro-lubrication and the common lubrication can be performed simultaneously.
The second route of second shunt is connected with the third shunt, the first route of third shunt is connected with pressure components with adjustable, pressure components with adjustable include booster pump 14, relief pressure valve, manometer 10, choke valve 11, flowmeter 12 and the air pressure boost shunt 25 that connect gradually through the pipeline with the first route of third shunt, air pressure boost shunt 25 links to each other with the air pressure boost shower nozzle 15 that sets up respectively in first sealed test chamber 3 and the sealed test chamber 4 of second, still is provided with the valve between air pressure boost shunt 25 and the air pressure boost shower nozzle 15, pressure components with adjustable still includes the pressure sensor 16 who sets up respectively in first sealed test chamber 3 and the sealed test chamber 4 of second.
The air source of the air compressor is connected in the same way, then the air is pressurized under the action of the booster pump 14, the pressurized air is sprayed into the first sealed test cavity 3 and the second sealed test cavity 4 through the air pressurizing sprayer 15, and meanwhile, the pressure sensor 16 can collect and feed back the pressure data inside, so that the required pressure is achieved in the sealed test cavity. The front end of the air pressurizing nozzle 15 is also provided with a valve, and the opening and closing of the air pressurizing nozzle 15 can be controlled by opening and closing the valve. Different pressures can be obtained in the first sealed test cavity 3 and the second sealed test cavity 4, namely, a friction and wear contrast test with the variable as the environmental pressure can be carried out simultaneously.
The second route of third reposition of redundant personnel is connected with fourth reposition of redundant personnel, the first route of fourth reposition of redundant personnel is connected with acidizing fluid subassembly with adjustable, acidizing fluid subassembly includes acidizing fluid oil tank 17, pneumatic pump 13, relief pressure valve, manometer 10, choke valve 11, flowmeter 12 and acidizing fluid shunt 26 that connect gradually through the pipeline with the first route of fourth reposition of redundant personnel, acidizing fluid shunt 26 links to each other with the acidizing fluid shower nozzle 18 that sets up respectively in first sealed experimental chamber 3 and the sealed experimental chamber 4 of second, be provided with the valve between acidizing fluid shunt 26 and the acidizing fluid shower nozzle 18.
Alkali lye subassembly with adjustable the second route of fourth shunt is connected with, alkali lye subassembly with adjustable includes that the second route through pipeline and fourth shunt connects gradually 19, pneumatic pump 13, relief pressure valve, manometer 10, choke valve 11, flowmeter 12 and alkali lye shunt 27, alkali lye shunt 27 links to each other with the alkali lye shower nozzle 20 that sets up respectively in first sealed test chamber 3 and the sealed test chamber 4 of second, be provided with the valve between alkali lye shunt 27 and the alkali lye shower nozzle 20, first sealed test chamber 3 and the sealed test chamber 4 of second all are provided with PH sensor 21.
The adjustable acid liquor assembly is the same as the adjustable alkali liquor assembly in principle, the air source in the air compressor is adopted to lower the liquid in the acid liquor oil tank 17 or the alkali liquor oil tank 19 under the action of the pneumatic pump 13, the liquid is pumped into the first sealed test cavity 3 and the second sealed test cavity 4, acid liquor or alkali liquor can be respectively pumped into the two sealed test cavities, different pH values are achieved, meanwhile, valves at the rear ends of the acid liquor spray head 18 and the alkali liquor spray head 20 can be opened and closed, the first sealed test cavity 3 and the second sealed test cavity 4 are enabled to have the same acidity or alkalinity, or different acidity, different alkalinity is achieved, one is acidic, the other is alkaline, and the like.
Temperature subassembly includes hot plate 22 and temperature sensor 23 with adjustable, all be provided with hot plate 22 and temperature sensor 23 in first sealed test chamber 3 and the sealed test chamber 4 of second. The first sealed test chamber 3 and the second sealed test chamber 4 are heated by the heating plate 22 to reach different temperature environments.
The invention can perform a plurality of friction and wear tests on one device, thereby saving the test time. Meanwhile, the temperature, the acid-base environment, the pressure and the lubricating condition are all adjustable, and the actual working environment of the material can be simulated to carry out a simulative application test. The contrast test can be through the friction and wear data of force sensor record material under different conditions on the guide rail slider, like friction torque, frictional force data, with temperature, pressure, PH sensor 21 data transmission to controller 1 together, can carry out operations such as data processing, curve drawing at controller 1, make things convenient for the experimenter to obtain the general law of material friction and wear. The volume of the test block is determined, so that the total ejection quantity of the pressurized air and the acid-base liquid can be obtained through calculation of the controller 1, and meanwhile, the flow rates of the pressurized air and the acid-base liquid are determined, so that the ejection quantity can be adjusted according to the ejection time, and accurate control is achieved by combining real-time data of the sensor.
Example two: the invention also provides a ring block friction wear comparison test method, which comprises the steps of adopting any one of the comparison test ring block friction wear machines based on the minimal quantity lubrication;
when the variable of the comparison test is the material and the size of the test block, the sealing partition plate 2 is taken down, and the first sealing test cavity 3 is communicated with the second sealing test cavity 4;
when the variables of the comparison test are temperature, pressure, acid-base environment, micro-lubrication and common lubrication modes, the first sealing test cavity 3 and the second sealing test cavity 4 are separated by the sealing partition plate 2 to form an independent sealing test space.
Specifically, the test method of the comparative test ring block friction wear machine comprises the following steps:
when the seal test chamber is divided into a first seal test chamber 3 and a second seal test chamber 4 by the seal partition plate 2, the following variables can be compared:
1. the lubricating conditions are set in the controller 1, other test conditions such as temperature, pressure, pH value and the like are the same, and micro-lubrication and common lubrication are respectively carried out in the two sealed test cavities, so that the influence of different lubricating conditions on the friction and the wear of materials is tested.
2. The temperature is set in the controller 1, other test conditions such as micro-lubrication in a lubrication mode, pressure, pH value, materials and the like are the same, and the temperature in the two sealed test cavities is different, so that the influence of different temperatures on the friction and the wear of the materials is tested.
3. The pH value is set in the controller 1, other test conditions such as micro-lubrication in a lubrication mode, pressure, temperature, materials and the like are the same, and the pH values in the two sealed test cavities are different, so that the influence of different pH values on the friction and the abrasion of the materials is tested.
4. The pressure is set in the controller 1, other test conditions such as micro-lubrication in a lubrication mode, pH value, temperature, materials and the like are the same, and the pressure in the two sealed test cavities is different, so that the influence of different pressures on the friction and the abrasion of the materials is tested.
When the sealing diaphragm 2 is removed, a comparison test can be carried out:
1. the ring block material, when seal baffle 2 took away, two sealed test chambers linked together, only opened a lubricated shower nozzle this moment, and then other test conditions of two experimental ring blocks are all the same, can place the ring block of two different materials to this frictional wear condition of studying different materials.
2. The ring block size, when sealed baffle 2 took away, two sealed test chambers linked together, only opened a lubricated shower nozzle this moment, and then other test conditions of two experimental ring blocks are all the same, can place the ring block of two the same materials, unidimensional to this research material size is to friction and wear's influence.
The control method of the controller 1:
temperature: two sealed experimental intracavity contain hot plate 22, can set for the assigned temperature at controller 1 to through two sealed experimental intracavity temperatures of real time monitoring of temperature sensor 23, control hot plate 22 work, when the temperature reachs the assigned temperature, through control hot plate 22 output, keep the constancy of temperature, the error is no longer than 1 ℃.
Pressure: the two sealed test cavities contain air pressurizing nozzles 15, designated pressure can be set in the controller 1, high-frequency sampling is carried out through the pressure sensor 16, pressure in the two sealed test cavities is monitored in real time, and the air pressurizing nozzles 15 are controlled to work.
Acid-base environment: the two sealed test cavities contain the acid liquor spray head 18 and the alkali liquor spray head 20, the designated pH value can be set in the controller 1, the initial pH value in the module is obtained through the pH value sensor, the acid liquor and alkali liquor spraying amount is automatically calculated, the acid liquor spray head 18 and the alkali liquor spray head 20 are controlled to spray acid liquor and alkali liquor, the pH value in the module is monitored in real time through the pH value sensor, the pH values in the two sealed test cavities are constant at a set value, and the error is not more than +/-0.05.
The controller 1 of the invention can control the friction wear assembly 5, the adjustable micro-lubricating assembly, the adjustable pressure assembly, the adjustable temperature assembly, the adjustable acid liquid assembly, the adjustable alkali liquid assembly and the common lubricating assembly, and simultaneously receive data collected by the force sensor, the pressure sensor 16, the temperature sensor 23, the PH sensor 21, the pressure gauge 10, the flowmeter 12 and the like, and control the size and the opening and closing of the electromagnetic valve, the flow divider, the pneumatic frequency generator 9, the pneumatic pump 13, the pressure reducing valve, the throttle valve 11, the switch valve and the like in the friction wear assembly 5, the adjustable micro-lubricating assembly, the adjustable pressure assembly, the adjustable temperature assembly, the adjustable acid liquid assembly, the adjustable alkali liquid assembly and the common lubricating assembly so as to achieve the set test conditions.
According to the invention, a sealing test cavity is divided into a first sealing test cavity 3 and a second sealing test cavity 4 through a sealing partition plate 2, and when the sealing partition plate 2 is taken down, the first sealing test cavity 3 is communicated with the second sealing test cavity 4; the annular block friction wear machine can be provided with two independent sealed test cavities, and simultaneously carries out comparison tests on conditions such as temperature, pressure, acid-base environment, micro-lubrication and common lubrication modes, and can also simultaneously carry out comparison tests on materials, sizes and the like of test blocks in the same sealed test cavity after the sealed partition plate 2 is taken down, so that the comparison tests on a plurality of test blocks can be simultaneously carried out, the test time is saved, the cost of test equipment is saved, and the consistency of the same test conditions and the difference of the comparison test conditions are also ensured; the friction force and the speed of the friction and wear assembly 5, the speed and the concentration of the trace lubricating liquid of the adjustable trace lubricating assembly, the pressure of the adjustable pressure assembly, the temperature of the adjustable temperature assembly, the pH value of the adjustable acid liquid assembly and the adjustable alkali liquid assembly and the opening and closing of the common lubricating assembly are controlled by the controller 1, the test conditions can be accurately controlled, meanwhile, the collection and analysis of test data are facilitated, the adjustable trace lubricating assembly, the adjustable pressure assembly, the adjustable temperature assembly, the adjustable acid liquid assembly and the adjustable alkali liquid assembly provide power and raw materials through the same air compressor, and the equipment cost and the space are saved.
The present invention is capable of other embodiments, and various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the invention.
Claims (7)
1. The contrast test ring piece friction wear machine based on micro-lubrication is characterized in that: the device comprises a sealing test cavity and a controller (1), wherein the sealing test cavity is divided into a first sealing test cavity (3) and a second sealing test cavity (4) by a sealing partition plate (2) arranged in the middle, a friction wear assembly (5), an adjustable micro-lubricating assembly, an adjustable pressure assembly, an adjustable temperature assembly, an adjustable acid liquid assembly and an adjustable alkali liquid assembly are arranged in each of the first sealing test cavity (3) and the second sealing test cavity (4), a common lubricating assembly is also arranged in each of the first sealing test cavity (3), and the controller (1) is used for controlling the friction wear assembly (5), the adjustable micro-lubricating assembly, the adjustable pressure assembly, the adjustable temperature assembly, the adjustable acid liquid assembly, the adjustable alkali liquid assembly and the common lubricating assembly;
the adjustable trace lubrication assembly comprises an adjustable gas supply pipeline and an adjustable lubricant supply pipeline, the adjustable gas supply pipeline and the adjustable lubricant supply pipeline are connected through an oil-gas mixer (7), the rear end of the oil-gas mixer (7) is connected with a lubricant splitter (24), the lubricant splitter (24) is connected with a common lubrication sprayer (6) and a trace lubricant pipeline, the trace lubricant pipeline is connected with a trace lubrication splitter (28), the trace lubrication splitter (28) is connected with trace lubrication sprayers (8) respectively arranged in a first sealing test cavity (3) and a second sealing test cavity (4), and a valve is arranged between the lubricant splitter (24) and the common lubrication sprayer (6); a valve is arranged between the micro-lubricating flow divider (28) and the micro-lubricating spray head (8);
the adjustable gas supply pipeline comprises an air compressor, a gas source processor, a two-position two-way solenoid valve and a first flow divider which are sequentially connected through pipelines, a first passage of the first flow divider is connected with a pneumatic frequency generator (9), a second passage of the first flow divider is connected with a second flow divider, and a first passage of the second flow divider is connected with an oil-gas mixer (7) through a pressure reducing valve, a pressure gauge (10), a throttle valve (11) and a flowmeter (12);
the adjustable lubricant supply pipeline comprises a lubricating oil tank and a pneumatic pump (13) which are sequentially connected through a pipeline, the pneumatic pump (13) is connected with an oil-gas mixer (7) through a pressure reducing valve, a pressure gauge (10), a throttle valve (11) and a flowmeter (12), and a pneumatic frequency generator (9) is in power connection with the pneumatic pump (13).
2. The minimal lubrication based comparative test ring block friction wear machine according to claim 1, wherein: the friction and wear assembly (5) comprises a guide rail and a sliding block which is in sliding connection with the guide rail, a test block fixing device is arranged on the sliding block, a test ring is arranged on the lower portion of the guide rail, and a force sensor is further arranged on the sliding block.
3. The minimal lubrication based comparative test ring block friction-wear machine according to claim 1, characterized in that: the second route of second shunt is connected with the third shunt, the first route of third shunt is connected with pressure assembly with adjustable, pressure assembly with adjustable includes booster pump (14), relief pressure valve, manometer (10), choke valve (11), flowmeter (12) and air pressure boost shunt (25) that connect gradually through the pipeline with the first route of third shunt, air pressure boost shunt (25) link to each other with air pressure boost shower nozzle (15) that set up respectively in first sealed test chamber (3) and the sealed test chamber of second (4), still are provided with the valve between air pressure boost shunt (25) and air pressure boost shower nozzle (15), pressure assembly with adjustable still is including setting up pressure sensor (16) in first sealed test chamber (3) and the sealed test chamber of second (4) respectively.
4. The minimal lubrication based comparative test ring block friction-wear machine according to claim 3, characterized in that: the second route of third reposition of redundant personnel is connected with fourth reposition of redundant personnel, the first route of fourth reposition of redundant personnel is connected with adjustable acidizing fluid subassembly, acidizing fluid subassembly includes acidizing fluid oil tank (17), pneumatic pump (13), relief pressure valve, manometer (10), choke valve (11), flowmeter (12) and acidizing fluid shunt (26) that connect gradually through the pipeline with the first route of fourth reposition of redundant personnel, acidizing fluid shunt (26) link to each other with acidizing fluid shower nozzle (18) of setting respectively in first sealed experimental chamber (3) and second sealed experimental chamber (4), be provided with the valve between acidizing fluid shunt (26) and acidizing fluid shower nozzle (18).
5. The minimal lubrication based comparative test ring block friction wear machine according to claim 4, wherein: alkali liquor subassembly with adjustable the second route of fourth shunt is connected with, alkali liquor subassembly with adjustable includes alkali lye oil tank (19), pneumatic pump (13), relief pressure valve, manometer (10), choke valve (11), flowmeter (12) and alkali lye shunt (27) that connect gradually through the pipeline with the second route of fourth shunt, alkali lye shunt (27) link to each other with alkali lye shower nozzle (20) that set up respectively in first sealed experimental chamber (3) and the sealed experimental chamber of second (4), be provided with the valve between alkali lye shunt (27) and alkali lye shower nozzle (20), first sealed experimental chamber (3) and the sealed experimental chamber of second (4) all are provided with PH sensor (21).
6. The minimal lubrication based comparative test ring block friction-wear machine according to claim 1, characterized in that: the adjustable temperature assembly comprises a heating plate (22) and a temperature sensor (23), and the heating plate (22) and the temperature sensor (23) are arranged in the first sealed test cavity (3) and the second sealed test cavity (4).
7. The ring block friction wear contrast test method is characterized by comprising the following steps: comprising the use of a minimal lubrication based comparative test ring block friction wear machine according to any of claims 1-6;
when the variable of the comparison test is the material and the size of the test block, the sealing partition plate (2) is taken down, and the first sealing test cavity (3) is communicated with the second sealing test cavity (4);
when the variable of the comparison test is temperature, pressure, acid-base environment, micro-lubrication and common lubrication modes, the first sealing test cavity (3) and the second sealing test cavity (4) are separated through the sealing partition plate (2) to form an independent sealing test space.
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