CN102607835B - Film lubrication and heat transfer testing system for high-speed friction pair - Google Patents
Film lubrication and heat transfer testing system for high-speed friction pair Download PDFInfo
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- CN102607835B CN102607835B CN201210064178.3A CN201210064178A CN102607835B CN 102607835 B CN102607835 B CN 102607835B CN 201210064178 A CN201210064178 A CN 201210064178A CN 102607835 B CN102607835 B CN 102607835B
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- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 238000012546 transfer Methods 0.000 title claims abstract description 28
- 238000005461 lubrication Methods 0.000 title claims abstract description 18
- 239000003921 oil Substances 0.000 claims abstract description 115
- 239000010687 lubricating oil Substances 0.000 claims abstract description 18
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 12
- 239000002828 fuel tank Substances 0.000 claims description 30
- 238000003860 storage Methods 0.000 claims description 18
- 238000004088 simulation Methods 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 6
- 238000011160 research Methods 0.000 abstract description 7
- 238000004458 analytical method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- -1 thermometer Substances 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000003532 endogenous pyrogen Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 108010052620 leukocyte endogenous mediator Proteins 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The invention discloses a film lubrication and heat transfer testing system for a high-speed friction pair, which comprises a testing system mechanical platform, an oil film thickness and temperature analog subsystem, a lubricating oil supply subsystem and a data acquisition and control subsystem. The testing system mechanical platform consists of a slider mounting support, a grinding head, an elastic coupler, a motor, a grinding head fixing support, a motor fixing support and a cast iron plate, the slider mounting support, the grinding head fixing support and the motor fixing support are sequentially arranged on the cast iron plate, the grinding head is disposed on the grinding head fixing support, the motor is arranged on the motor fixing support, and the grinding head, the elastic coupler and the motor are sequentially connected with each other. By the aid of the film lubrication and heat transfer testing system, analog tests for lubrication and heat transfer laws of the friction pair including a piston ring and a cylinder liner in an engine can be carried out, and the film lubrication and heat transfer testing system can also be used for research of lubrication and heat transfer laws of other friction pairs. In addition, the film lubrication and heat transfer testing system is provided with a high-precision capacitance type thickness sensor and a surface thermocouple, and can be used for quickly and accurately measuring the thickness of an oil film and the temperature of a surface.
Description
Technical field
The present invention relates to lubricated and heat transfer testing system, relate in particular to a kind of film lubrication for high-speed friction pair and heat transfer testing system.
Background technology
Along with manifesting gradually of energy crisis, the requirement of vehicle power, economy and compactedness is improved constantly.In passenger car field, the vehicle of small displacement band turbocharging technology is dominating of market future.And in commercial car field, high speed, high-power and charge inter cooling technology universalness are the leading of commercial vehicle engine future development.
Development trend more than motor car engine field, can impel engine structure compacter on the one hand, and the weight and volume of specific power reduces, and certainly will cause that but then engine heat load increases.
The heat transfer of this friction pair of piston ring-liner is the main path conducting heat in engine cylinder, and the increase of engine heat load will certainly improve its conductive heat flow density.If can not efficiently radiates heat, can cause that piston temperature is too high so that burn, the series of problems such as burn deterioration, lubricating oil coking.Therefore, significant to the research of its HEAT TRANSFER LAW.
At present, scholars mainly concentrate on lubricated and friction aspect for the research of this friction pair of piston ring-liner, visible a large amount of articles about finite element analysis and experimental study aspect.And relatively less for the research of HEAT TRANSFER LAW, and be mainly finite element analysis, how by this heat transfer medium simple process of lubricating oil film, to be one-dimensional heat conduction thermal resistance, do not consider its fluid interchange characteristic.
The lubricated of this friction pair of piston ring-liner is the process of a coupling with conducting heat, and answers Cooperative Analysis.
Chinese patent [201335766] disclosed " cylinder sleeve and piston ring friction wear testing machine ", Chinese patent [2066981] disclosed " suspending integrate ring type wear simulation test machine for engine cylinder jacket-piston ring ", Chinese patent [101158619] disclosed " reciprocating type piston ring-cylinder sleeve friction wear testing machine " and Chinese patent [1789963] disclosed " a kind of cylinder liner piston ring component friction wear test method and equipment ", its technical field all relates to piston ring and this friction pair of cylinder sleeve, but they all do not relate to the measurement of oil film thickness and the research of heat transfer aspect.
Summary of the invention
The object of the invention is, in order to solve the deficiencies in the prior art, provides a kind of film lubrication for high-speed friction pair and heat transfer testing system.
Film lubrication and heat transfer testing system for high-speed friction pair comprise pilot system mechanical platform, oil film thickness and temperature simulation subsystem, lubricating oil supply subsystem and data acquisition and control subsystem.Pilot system mechanical platform comprises slide block mounting bracket, bistrique, spring coupling, motor, bistrique fixed support, motor fixed rack and cast iron surface plate; On cast iron surface plate, be provided with in turn slide block mounting bracket, bistrique fixed support and motor fixed rack; Bistrique fixed support is provided with bistrique; Motor fixed rack is provided with motor; Bistrique, spring coupling and motor are connected in turn; Described oil film thickness and temperature simulation subsystem comprise spring, slide block, flywheel, adjustment bolt, power sensor, electrically heated rod, oil film, the first thermopair, the second thermopair, three thermocouple, the 4th thermopair, oil film thickness sensor top crown and oil film thickness sensor bottom crown; Flywheel is connected with bistrique, and flywheel top is provided with slide block; Between flywheel and slide block, be provided with oil film, at flywheel and slide block Central Symmetry, be provided with oil film thickness sensor top crown and oil film thickness sensor bottom crown, a side symmetry at flywheel and slide block center is respectively equipped with the first thermopair and the second thermopair, in the opposite side symmetry at flywheel and slide block center, be respectively equipped with three thermocouple and the 4th thermopair, in slide block, be provided with well heater, slide block top is connected with spring one end by power sensor, and the spring other end is connected with slide block mounting bracket by adjusting bolt.
Described oil film thickness and temperature simulation subsystem comprise adjusts bolt, spring, power sensor, slide block, electrically heated rod, thermopair, oil film thickness sensor and flywheel; Flywheel is connected with bistrique, and flywheel top is provided with slide block; Between flywheel and slide block, be provided with thermopair and oil film thickness sensor, for measuring oil film thickness and Temperature Distribution; In slide block, be provided with well heater, for heating to slide block, with the Temperature Distribution in Reality simulation situation; Slide block top is connected with spring one end by power sensor, and power sensor can obtain the quantized value of initial tension of spring, is convenient to post analysis; The spring other end is connected with slide block mounting bracket by adjusting bolt, adjusts the pretightning force of bolt adjustable springs, for controlling oil film thickness by rotation.
Described lubricating oil is supplied with subsystem and is comprised oil storage fuel tank, thermometer, oil cooler, oil return oil pump, return filter, collection fuel tank, oil heater, supplies oil strainer, fuel feeding oil pump, flowmeter, flow controller and atomizer; Oil storage fuel tank is connected with thermometer, oil cooler and confession oil strainer respectively; Oil heater is installed in oil storage fuel tank; Collection fuel tank, return filter, oil return oil pump are connected in turn with oil cooler; For oil strainer, fuel feeding oil pump, flowmeter, flow controller, be connected in turn with atomizer; Collect fuel tank and be arranged on cast iron surface plate, flywheel is arranged on to be collected in fuel tank; Atomizer is arranged on slide block mounting bracket.
Described data acquisition with the internal module annexation of control subsystem is: embedded real-time controller is connected with host computer with communication module, thermocouple signal acquisition card, capacitance signal capture card, voltage signal acquisition card, relay, frequency-variable controller respectively; Communication module is connected with oil storage fuel tank temperature sensor, oil pipe flow sensor and power sensor respectively; Thermocouple signal acquisition card is connected with thermopair; Capacitance signal capture card is connected with oil film thickness sensor; Voltage signal acquisition card is connected with motor speed sensor; Relay is connected with slider electrical heating rod, oil storage fuel tank heater and flow controller by-pass valve respectively; Frequency-variable controller is connected with motor.
The present invention compared with prior art has beneficial effect.
1) the present invention can carry out the simulation test of this friction lubricating of piston ring-liner and HEAT TRANSFER LAW in engine, also can be used for the research of the lubricated and HEAT TRANSFER LAW of other friction pairs;
2) the present invention can control Speed of Reaction Wheels, slide block temperature, oil film thickness and flow of lubrication and these test parameterss of temperature; Can monitor and real-time storage Speed of Reaction Wheels, slide block and flywheel temperature, oil film thickness and temperature and flow of lubrication and these test parameterss of temperature test parameters is carried out to analyzing and processing;
3) the present invention adopts high-precision capacitance-type thickness transducer and surface thermocouple, can carry out accurately measuring fast to oil film thickness and surface temperature.
Accompanying drawing explanation
Fig. 1 is a kind of film lubrication for high-speed friction pair and heat transfer testing system test platform structure schematic diagram;
Fig. 2 is that slide block of the present invention is installed and sensor layout schematic diagram;
Fig. 3 is that lubricating oil of the present invention is supplied with subsystem schematic diagram;
Fig. 4 is data acquisition of the present invention and control subsystem schematic diagram.
Embodiment
As shown in Figure 1, for film lubrication and the heat transfer testing system of high-speed friction pair, comprise pilot system mechanical platform, oil film thickness and temperature simulation subsystem, lubricating oil supply subsystem and data acquisition and control subsystem.Pilot system mechanical platform comprises slide block mounting bracket 2, bistrique 7, spring coupling 8, motor 9, bistrique fixed support 10, motor fixed rack 11 and cast iron surface plate 12; On cast iron surface plate 12, be provided with in turn slide block mounting bracket 2, bistrique fixed support 10 and motor fixed rack 11; Bistrique fixed support 10 is provided with bistrique 7; Motor fixed rack 11 is provided with motor 9; Bistrique 7, spring coupling 8 and motor 9 are connected in turn.
As shown in Figure 2, described oil film thickness and temperature simulation subsystem comprise spring 4, slide block 5, flywheel 6, adjust bolt 23, power sensor 24, electrically heated rod 25, oil film 26, the first thermopair 27a, the second thermopair 27b, three thermocouple 27c, the 4th thermopair 27d, oil film thickness sensor top crown 28a and oil film thickness sensor bottom crown 28b; Flywheel 6 is connected with bistrique 7, and flywheel 6 tops are provided with slide block 5; Between flywheel 6 and slide block 5, be provided with oil film 26; At flywheel 6 and slide block 5 Central Symmetries, be provided with oil film thickness sensor top crown 28a and oil film thickness sensor bottom crown 28b, for measuring oil film thickness; In a side symmetry at flywheel 6 and slide block 5 centers, be respectively equipped with the first thermopair 27a and the second thermopair 27b, opposite side symmetry at flywheel 6 and slide block 5 centers is respectively equipped with three thermocouple 27c and the 4th thermopair 27d, for measuring oil film thickness and Temperature Distribution; In slide block 5, be provided with well heater 25, for heating to slide block 5, with the Temperature Distribution in Reality simulation situation; Slide block 5 tops are connected with spring 4 one end by power sensor 24, and power sensor 24 can obtain the quantized value of spring 4 pretightning forces, is convenient to post analysis; Spring 4 other ends are connected with slide block mounting bracket 2 by adjusting bolt 23, adjust the pretightning force of bolt 23 adjustable springs 4, for controlling oil film thickness by rotation.
As shown in Figure 3, described lubricating oil supply subsystem comprises oil storage fuel tank 13, thermometer 14, oil cooler 15, oil return oil pump 16, return filter 17, collects fuel tank 3, oil heater 18, supplies oil strainer 19, fuel feeding oil pump 20, flowmeter 21, flow controller 22 and atomizer 1; Oil storage fuel tank 13 is connected with thermometer 14, oil cooler 15 and confession oil strainer 19 respectively; The interior installation oil heater 18 of oil storage fuel tank 13; Collection fuel tank 3, return filter 17, oil return oil pump 16 are connected in turn with oil cooler 15; For oil strainer 19, fuel feeding oil pump 20, flowmeter 21, flow controller 22, be connected in turn with atomizer 1; Collect fuel tank 3 and be arranged on cast iron surface plate 12, flywheel 6 is arranged on to be collected in fuel tank 3; Atomizer 1 is arranged on slide block mounting bracket 2.
As shown in Figure 4, described data acquisition with the internal module annexation of control subsystem is: embedded real-time controller is connected with host computer with communication module, thermocouple signal acquisition card, capacitance signal capture card, voltage signal acquisition card, relay, frequency-variable controller respectively; Communication module is connected with oil storage fuel tank temperature sensor, oil pipe flow sensor and power sensor respectively; Thermocouple signal acquisition card is connected with thermopair; Capacitance signal capture card is connected with oil film thickness sensor; Voltage signal acquisition card is connected with motor speed sensor; Relay is connected with slider electrical heating rod, oil storage fuel tank heater and flow controller by-pass valve respectively; Frequency-variable controller is connected with motor.
The course of work of the present invention is as follows:
The present invention simulates the process of this friction lubricating of piston ring-liner and heat transfer, for studying its lubricated and HEAT TRANSFER LAW.Also can be used for the research of other friction lubricatings and HEAT TRANSFER LAW simultaneously.
During test, with slide block and flywheel simulation piston ring and cylinder jacket, lubricating oil is supplied with subsystem and in its surface of contact, is sprayed into lubricating oil by shower nozzle, to simulate cylinder sleeve oil film.Motor is connected with bistrique by shaft coupling, and bistrique flywheel driven rotates, and realizes the relative motion between slide block and flywheel.Flywheel arranged outside has collection fuel tank, prevents lubricating oil splash test for contamination place, collects lubricating oil simultaneously and returns to lubricating oil supply subsystem.
Testing table base plate adopts cast iron workbench, and its surface smoothness is high, good rigidly, unrelieved stress are little.The support of bistrique and motor adopts Plate Welding to form, and adopts bolt directly to connect, without pad between each parts.Above measure has guaranteed the integral rigidity of stand, prevents that the elastic deformation of stand from affecting the measurement of oil film thickness.Meanwhile, testing table adopts lathe high precision bistrique, and the bearing mode of its hydrostatic bearing has effectively reduced the beating degree while rotating, and has also improved the measuring accuracy of oil film thickness.
Lubricating oil is supplied with subsystem and is adopted closed cycle, filtrator is installed and to guarantee lubricating oil, can reuses, and economizes on resources.Meanwhile, it is provided with oil heater and oil cooler, to realize oil temperature, accurately controls.In addition, flow controller is also installed, to realize oil pump capacity, accurately controls.The accurate control of oil temperature and oil mass, for the lubricating oil state under the different operating modes of simulated engine.
Test adopts variable frequency control with motor, realizes rotating speed controlled, with the relative motion of simulated engine different rotating speeds lower piston ring and cylinder jacket.
Electrically heated rod simulated engine cylinder endogenous pyrogen to install in slide block in test, produce a direction of heat flow by slide block the temperature field to flywheel.Meanwhile, heating rod heating power is controlled, with need not the load heat transfer situation of lower piston ring-cylinder jacket of simulated engine.
In test, surface of friction pair adopts surface thermocouple, fast response time.Thickness transducer adopts high-precision capacitance-type thickness transducer, can measure in real time oil film thickness.
In test, data acquisition and instrument control are completed by embedded real-time controller.Oil storage fuel tank temperature signal, oil pipe flow signal and spring pre-tightening force signal reach embedded real-time controller through communication module.Thermocouple signal, oil film thickness signal and motor speed signal are transferred to embedded real-time controller through corresponding data acquisition card.Embedded real-time controller receives after appeal signal, carries out analytical calculation, and send a control signal to slider electrical heating rod, oil storage fuel tank heater, flow controller by-pass valve and motor frequency conversion controller by good control program prepared in advance, realizes in real time and controlling.Host computer is for system state demonstration and data storage, and the relation between host computer and embedded real-time controller is: even if host computer is closed, real-time controller still can normally be worked.Whole system automaticity is high, and system stability is good.
Claims (3)
1. for film lubrication and the heat transfer testing system of high-speed friction pair, it is characterized in that comprising pilot system mechanical platform, oil film thickness and temperature simulation subsystem, lubricating oil supply subsystem and data acquisition and control subsystem, pilot system mechanical platform comprises slide block mounting bracket (2), bistrique (7), spring coupling (8), motor (9), bistrique fixed support (10), motor fixed rack (11) and cast iron surface plate (12), on cast iron surface plate (12), be provided with in turn slide block mounting bracket (2), bistrique fixed support (10) and motor fixed rack (11), bistrique fixed support (10) is provided with bistrique (7), motor fixed rack (11) is provided with motor (9), bistrique (7), spring coupling (8) and motor (9) are connected in turn, described oil film thickness and temperature simulation subsystem comprise spring (4), slide block (5), flywheel (6), adjust bolt (23), power sensor (24), electrically heated rod (25), oil film (26), the first thermopair (27a), the second thermopair (27b), three thermocouple (27c), the 4th thermopair (27d), oil film thickness sensor top crown (28a) and oil film thickness sensor bottom crown (28b), flywheel (6) is connected with bistrique (7), and flywheel (6) top is provided with slide block (5), between flywheel (6) and slide block (5), be provided with oil film (26), at flywheel (6) and slide block (5) center, be arranged with respectively oil film thickness sensor top crown (28a) and oil film thickness sensor bottom crown (28b), a side symmetry at flywheel (6) and slide block (5) center is respectively equipped with the first thermopair (27a) and the second thermopair (27b), opposite side symmetry at flywheel (6) and slide block (5) center is respectively equipped with three thermocouple (27c) and the 4th thermopair (27d), in slide block (5), be provided with well heater (25), slide block (5) top is connected with spring (4) one end by power sensor (24), spring (4) other end is connected with slide block mounting bracket (2) by adjusting bolt (23).
2. a kind of film lubrication for high-speed friction pair according to claim 1 and heat transfer testing system, is characterized in that described lubricating oil supply subsystem comprises oil storage fuel tank (13), thermometer (14), oil cooler (15), oil return oil pump (16), return filter (17), collects fuel tank (3), oil heater (18), supplies oil strainer (19), fuel feeding oil pump (20), flowmeter (21), flow controller (22) and atomizer (1); Oil storage fuel tank (13) is connected with thermometer (14), oil cooler (15) and confession oil strainer (19) respectively; Oil heater (18) is installed in oil storage fuel tank (13); Collection fuel tank (3), return filter (17), oil return oil pump (16) are connected in turn with oil cooler (15); For oil strainer (19), fuel feeding oil pump (20), flowmeter (21), flow controller (22), be connected in turn with atomizer (1); Collect fuel tank (3) and be arranged on cast iron surface plate (12) above, flywheel (6) is arranged on to be collected in fuel tank (3); Atomizer (1) is arranged on slide block mounting bracket (2).
3. a kind of film lubrication for high-speed friction pair according to claim 1 and heat transfer testing system, is characterized in that described data acquisition with the internal module annexation of control subsystem is: embedded real-time controller is connected with host computer with communication module, thermocouple signal acquisition card, capacitance signal capture card, voltage signal acquisition card, relay, frequency-variable controller respectively; Communication module is connected with oil storage fuel tank temperature sensor, oil pipe flow sensor and power sensor respectively; Thermocouple signal acquisition card is connected with thermopair; Capacitance signal capture card is connected with oil film thickness sensor; Voltage signal acquisition card is connected with motor speed sensor; Relay is connected with slider electrical heating rod, oil storage fuel tank heater and flow controller by-pass valve respectively; Frequency-variable controller is connected with motor.
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| CN201210064178.3A CN102607835B (en) | 2012-03-13 | 2012-03-13 | Film lubrication and heat transfer testing system for high-speed friction pair |
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| CN201210064178.3A CN102607835B (en) | 2012-03-13 | 2012-03-13 | Film lubrication and heat transfer testing system for high-speed friction pair |
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| CN102607835B true CN102607835B (en) | 2014-04-16 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104634682A (en) * | 2015-01-15 | 2015-05-20 | 江苏师范大学 | Cylinder sleeve piston ring friction pair abrasion test machine |
| CN105643367B (en) * | 2016-04-01 | 2018-06-01 | 北京林业大学 | A kind of rubbing device of solid-liquid-gas shock reducing type high-speed screw feeding |
| CN107121292B (en) * | 2017-07-12 | 2023-06-09 | 河北工业大学 | Piston ring-cylinder sleeve low-friction experiment system based on thermal management and application method thereof |
| CN109322924B (en) * | 2018-08-10 | 2020-10-20 | 南京航空航天大学 | Intelligent sliding bearing capable of automatically regulating and controlling oil film thickness and control method thereof |
| CN109341509B (en) * | 2018-12-21 | 2023-09-05 | 许昌学院 | Rolling bearing lubrication film thickness measuring device and method |
| CN110823953B (en) * | 2019-11-22 | 2022-03-22 | 刘晓宇 | Car specialty machine oil contrast check out test set that generates heat |
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Inventor after: Liu Zhentao Inventor after: Fu Jiahong Inventor after: Sun Zheng Inventor after: Xu Wenfei Inventor after: Li Hongmiao Inventor after: Liu Xiaolong Inventor after: Chen Junxuan Inventor after: Wang Zengquan Inventor after: Tan Jiansong Inventor after: Yin Xu Inventor after: Huang Rui Inventor after: Han Song Inventor after: Zhang Yu Inventor after: Huang Yuqi Inventor after: Xia Qiwei Inventor after: Yu Xiaoli Inventor after: Shen Yuming Inventor before: Liu Zhentao Inventor before: Sun Zheng Inventor before: Xu Wenfei Inventor before: Li Hongmiao Inventor before: Liu Xiaolong Inventor before: Yin Xu Inventor before: Huang Rui Inventor before: Zhang Yu Inventor before: Huang Yuqi Inventor before: Xia Qiwei Inventor before: Yu Xiaoli Inventor before: Shen Yuming Inventor before: Fu Jiahong |
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Free format text: CORRECT: INVENTOR; FROM: LIU ZHENTAO YIN XU HUANG RUI ZHANG YU HUANG YUQI XIA QIWEI YU XIAOLI SHEN YUMING FU JIAHONG SUN ZHENG XU WENFEI LI HONGMIAO LIU XIAOLONG TO: LIU ZHENTAO YIN XU HUANG RUI HAN SONG ZHANG YU HUANG YUQI XIA QIWEI YU XIAOLI SHEN YUMING FU JIAHONG SUN ZHENG XU WENFEI LI HONGMIAO LIU XIAOLONG CHEN JUNXUAN WANG ZENGQUAN TAN JIANSONG |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 |