CN108051225A - A kind of internal combustion engine reciprocating vibration Heat Transfer Simulation experimental rig and its test method - Google Patents
A kind of internal combustion engine reciprocating vibration Heat Transfer Simulation experimental rig and its test method Download PDFInfo
- Publication number
- CN108051225A CN108051225A CN201711023449.XA CN201711023449A CN108051225A CN 108051225 A CN108051225 A CN 108051225A CN 201711023449 A CN201711023449 A CN 201711023449A CN 108051225 A CN108051225 A CN 108051225A
- Authority
- CN
- China
- Prior art keywords
- oil
- cooling
- test specimen
- piston
- recess
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 21
- 238000012546 transfer Methods 0.000 title claims abstract description 20
- 238000004088 simulation Methods 0.000 title claims abstract description 16
- 238000010998 test method Methods 0.000 title claims abstract description 7
- 239000003921 oil Substances 0.000 claims abstract description 315
- 238000001816 cooling Methods 0.000 claims abstract description 229
- 238000012360 testing method Methods 0.000 claims abstract description 146
- 238000010438 heat treatment Methods 0.000 claims abstract description 40
- 239000010721 machine oil Substances 0.000 claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 239000000446 fuel Substances 0.000 claims abstract description 16
- 239000007921 spray Substances 0.000 claims abstract description 13
- 238000013461 design Methods 0.000 claims abstract description 9
- 238000002474 experimental method Methods 0.000 claims abstract description 9
- 238000005183 dynamical system Methods 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 230000010355 oscillation Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 4
- 239000010705 motor oil Substances 0.000 claims description 4
- 208000002925 dental caries Diseases 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 230000009183 running Effects 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims 1
- 238000004321 preservation Methods 0.000 claims 1
- 238000005457 optimization Methods 0.000 abstract 1
- 238000011160 research Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Engines (AREA)
Abstract
The present invention relates to a kind of internal combustion engine reciprocating vibration Heat Transfer Simulation experimental rig and its test methods, belong to internal combustion engine experimental technique field.Including main body oscillating mechanism, dynamical system, fuel feeding and excess oil collection system, control and measuring system, piston heating system, main body oscillating mechanism include rack, crank length adjusting device etc.；Dynamical system includes servo motor device；The atomizer that oil supply system cools down piston test specimen entrance by being directed at inner-cooling oil recess sprays machine oil to oil duct see-through model, and excess oil collection system is finally collected machine oil；Control is measured and controlled to servo motor device rotating speed, injection pressure etc. with measuring system；Piston heating system realizes the heated at constant temperature that piston test specimen is cooled down to inner-cooling oil recess by resistance wire.Simulation accuracy of the present invention is high, versatile, by measuring machine oil out temperature temperature, directly investigates the oil pocket wall surface coefficient of heat transfer, simultaneously measurable atomizer performance provides foundation for piston optimization design.
Description
Technical field
The present invention relates to a kind of internal combustion engine reciprocating vibration Heat Transfer Simulation experimental rig and its test methods, belong to internal combustion engine work
Fill in experimental technique field.
Background technology
As explosion pressure in cylinder of diesel engine in recent years and power per liter are continuously improved, diesel engine piston institute's affected by hot loading and machine
Tool load greatly increases.In order to prevent piston failure, ensure the reliability and durability of piston and diesel engine, it is necessary to control piston
Maximum temperature is below permissible value, it is therefore desirable to which piston is effectively cooled down.And it is obtained at present on high load piston wide
The type of cooling of general application is that interior oil cooling passage forces vibration cooling.
Interior oil cooling passage forces vibration cooling, is that oil duct is cast on the inside of ring area, from oil injection nozzle to oil duct machine oil
Inlet jet oil, machine oil are acutely vibrated under high speed piston reciprocating motion after entering oil duct, finally flowed out from oil passage outlet.Machine
Oil can take away the most heat of piston in interior oil cooling passage oscillatory process, greatly reduce the temperature of piston.Internal oil cooling passage
In research, way is by oil cooling passage heat exchange property in the evaluation of piston temperature field, due to being limited by boundary condition accuracy earlier
System, can not obtain satisfactory result.
The research for forcing vibration cooling on interior oil cooling passage at present mainly includes oil duct fluid interchange analogue simulation and interior cold
The development of oil duct Oscillation Flows simulation test device.And the simulation calculation of oil duct fluid interchange, all it is the oil duct mould to simplifying
Type is simulated, and model accuracy is difficult to ensure that, it is necessary to experimental verification.And the development of Oscillation Flows Heat Transfer Simulation experimental rig
Example has：A kind of engine piston vibration cooling experiment device is disclosed in Chinese patent application 201010547315.X.It will
Research piston test specimen is fixed on long piston, is driven crank-connecting rod mechanism for engine and long piston motion by motor, is used height
Wet body heats piston, and oil pocket cooling effect is evaluated finally by outlet oil temperature height.
But the device throw of crankshaft can not be adjusted, versatility is smaller；More main, which is only capable of using outlet machine oil
Temperature Indirect evaluation oil pocket heat transfer effect can not directly investigate piston inner-cooling oil recess vibration heat exchange situation, i.e., can not pass through wall surface
The oil pocket coefficient of heat transfer evaluates cooling effect.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of internal combustion engine reciprocating vibration Heat Transfer Simulation experimental rig and its examinations
Proved recipe method can directly investigate vibration heat exchange situation by measuring piston measuring point temperature and machine oil out temperature（Change
Hot coefficient）, while interior oil cooling passage machine oil percent of pass can be accurately measured, for cold oil in oil cooling passage fluid interchange in research and piston
Road design provides foundation.
The technical solution adopted by the present invention is：A kind of internal combustion engine reciprocating vibration Heat Transfer Simulation experimental rig, shakes including main body
Swing mechanism, dynamical system, fuel feeding and excess oil collection system, control and measuring system, piston heating system；Wherein：
The main body oscillating mechanism includes rack 1, crank length adjusting device 2, mandril guiding mechanism, connecting rod 13, variable song
Handle linkage 14, mandril 11, test specimen mounting platform 10, inner-cooling oil recess cooling piston test specimen 9, right trunnion 16；
Left side, right side, the top of rack 1 offer mounting hole, and crank length adjusting device 2 passes through the peace in the left side of rack 1
The left side connection of the variable toggle 14 inside Kong Houyu racks 1 is filled, right trunnion 16 passes through the installation on 1 right side of rack
The right side connection of the variable toggles 14 of Kong Houyu, right trunnion 21 is by 1 axial restraint of rack, the installation of 1 top of rack
Mandril guiding mechanism is equipped at hole, test specimen mounting platform 10 is fixed on the surface of rack 1, and upper end and the test specimen of mandril 11 are installed
Platform 10 connects, lower end pass through mandril guiding mechanism after be connected with the upper end of the connecting rod 13 rack 1 inside, the lower end of connecting rod 13 and
The upper end connection of variable toggle 14, crank length adjusting device 2 are used to implement the length of variable toggle 14
Degree is adjusted；Described inner-cooling oil recess cooling piston test specimen 9 is mounted on 10 top of test specimen mounting platform and with oil inlet and fuel-displaced
Mouthful；
The dynamical system includes servo motor device 15, the motor output shaft 29 of servo motor device 15 and right trunnion 21
Connection, servo motor device 15 drives variable toggle 14 to move back and forth by right trunnion 21, and then variable crank
Linkage 14 drives connecting rod 13 to pump；
The fuel feeding and excess oil collection system include fueller and excess oil collection device 12, and fueller is used for inside cold oil
The oil inlet injection machine oil of chamber cooling piston test specimen 9, excess oil collection device 12 cool down piston test specimen 9 for collecting from inner-cooling oil recess
The machine oil and sprayed from fueller but be not injected into the machine oil of 9 oil inlet of inner-cooling oil recess cooling piston test specimen that oil outlet flows out；
The control includes host computer, slave computer with measuring system, and host computer is is connected with slave computer, for being passed to slave computer
Defeated instruction, slave computer are connected with fueller, servo motor device 15, for fueller, servo motor device 15 to be controlled to hold
The status data of fueller, servo motor device 15 is simultaneously fed back to host computer by the instruction of row host computer；
Piston heating system includes computer heating control case, incubator 8, resistance wire, conducting wire, and resistance wire is mounted in incubator 8 and logical
It crosses conducting wire to be connected with computer heating control case, inner-cooling oil recess cooling piston test specimen 9 is mounted in incubator 8 and is equipped with temperature inside it
Sensor, temperature sensor one end that inner-cooling oil recess cools down inside piston test specimen 9 are connected with computer heating control case, the other end and temperature
Data logger connects, and is separately installed with to measure inner-cooling oil recess cooling piston examination in fueller and excess oil collection device 12
9 oil inlet of part, oil outlet temperature temperature sensor, the temperature sensor in fueller and excess oil collection device 12 is straight
It connects and is connected with temperature data recorder, after computer heating control case is powered, the heating to incubator 8, Jin Erjia are realized by resistance wire
Hot inner-cooling oil recess cooling piston test specimen 9, the temperature sensor inside inner-cooling oil recess cooling piston test specimen 9 detect inner-cooling oil recess
When cooling down the temperature in piston test specimen 9 more than design temperature, computer heating control case powers off conducting wire automatically, and inner-cooling oil recess cooling is made to live
Plug test specimen 9 is stablized in the range of design temperature.
The crank length adjusting device 2 include handwheel 24, sliding screw 25, nut 26, bearing 22, sleeve 21, only
Push and block circle or double nut fixed standard part 23；Sleeve 21 is mounted in the mounting hole in the left side of rack 1, and bearing 22 is mounted on sleeve
Inside 21, nut 26 is installed on 22 inner ring of bearing and axial restraint, and thrust baffle ring or double nut fixed standard part 23 are fixed on spiral shell
On mother 26, sliding screw 25 is connected with 26 inner thread of nut, and 25 left end of sliding screw is connected with handwheel 24, right end and variable song
The left end connection of handle linkage 14, by rotating handwheel 24, changes the axial position of sliding screw 25, so as to promote variable song
Handle linkage 14 moves.
The variable toggle 14 includes left crank 20, rod journal 19, right crank 18, a left side for left crank 20
End is connected with crank length adjusting device 2, and the right end of left crank 20 is connected with the left end of rod journal 19, the right side of rod journal 19
End is connected with the left end of right crank 18, and the right end of right crank 18 is connected with right trunnion 16, the middle part and top of rod journal 19
Connecting rod 13 connect, the mandril guiding mechanism includes top stem casing 27 and mandril block set 28, and mandril block set 28 is located in rack 1
At the mounting hole in portion, top stem casing 27 is mounted on inside mandril block set 28, and 11 lower end of mandril is stretched into after passing through top stem casing 27 in rack 1
Portion, mandril 11 is free to slide in top stem casing 27, and the lower end of mandril 11 sets engaging lug, and engaging lug is equipped with pin hole, on connecting rod 13
It holds as small end of connecting rod, lower end is big end, and small end of connecting rod is equipped with pin hole, small through the pin hole on engaging lug and connecting rod by pin
Pin hole on head makes connecting rod 13 be rotatablely connected with mandril 11, the middle part of the big end of connecting rod 13 and the rod journal 19 of lower end
Rotation connection.
The variable toggle 14 further includes the vibrating balancer 17 of left and right ends, the vibration balancing of left end
The left end of device 17 is connected with crank length adjusting device 2, and right end is connected with the left end of left crank 20, the vibration balancing dress of right end
It puts 17 left end to be connected with the right end of right crank 18, right end is connected with right trunnion 16.
The fueller includes fuel reserve tank 3, high-pressure oil pump 4, Oil pump electrical machinery 5, accumulator 6, atomizer 7, wherein high
Pressure oil pump 4 is connected respectively with fuel reserve tank 3, Oil pump electrical machinery 5, accumulator 6, and accumulator 6 is connected with atomizer 7, and atomizer 7 passes through spray
Oil nozzle apparatus for adjusting position adjusts to be directed at 9 oil inlet of inner-cooling oil recess cooling piston test specimen.
The inner-cooling oil recess cooling piston test specimen 9 is the top half of the piston containing inner-cooling oil recess, and inner-cooling oil recess cools down
Equipped with the temperature sensor that several are connected with computer heating control case, the cooling piston examination of any one inner-cooling oil recess in piston test specimen 9
When the temperature that temperature sensor in part 9 detects is more than setting value, computer heating control case powers off conducting wire automatically.
Temperature sensor inside the cold oil chamber cooling piston test specimen 9 includes left side temperature sensor 41, top temperature
Sensor 42, right side temperature sensor 43, bottom temp sensor 44 are spent, it is cold that four temperature sensors measure inner-cooling oil recess respectively
But the temperature of 9 inside corresponding position of piston test specimen.
The excess oil collection device 12 includes upper casing 30, lower casing 31, cavity 32, fuel-displaced collecting pipe 33, is not injected into
The test specimen mounting platform 10 on oily collecting pipe 34, oil spout oil circuit 35, louver(-vre) 37, upper casing 30 and top is fixed together and it enters
Mouth is connected with the oil outlet of inner-cooling oil recess cooling piston test specimen 9, and lower casing 31 is located at upper 30 lower end of casing and between upper casing 30
Gap cooperation, lower casing 31 is interior containing middle baffle plate 38, and the cavity 32 with louver(-vre) 37 is mounted on the outside of lower casing 31 and in-between
Equipped with intermediate bulkhead 36, louver(-vre) 37 connects air, and lower casing 31 is divided into two babinets in left and right by middle baffle plate 38, from interior cold
The machine oil of 9 oil outlet outflow of oil pocket cooling piston test specimen is flowed through after casing 30 into the left box body for case 31 of trapping, and is filled from fuel feeding
The machine oil put ejection but be not injected into 9 oil inlet of inner-cooling oil recess cooling piston test specimen is splashed on the wall surface of casing 30 and lower casing 31
Afterwards, the right case of lower casing 31 is fallen under gravity into, cavity 32 is divided into two cavitys in left and right, trapped by intermediate bulkhead 36
The bottom of the left box body of case 31 is equipped with the left side square hole 39 connected with 32 left chamber body of cavity, and the bottom of the right case of lower casing 31 is set
There is the right side square hole 40 connected with 32 right chamber body of cavity, fuel-displaced collecting pipe 33 is connected with 32 left chamber body of cavity, is not injected into oily collection
Pipe 34 is connected with 32 right chamber body of cavity.
The section of the middle baffle plate 38 is crank shape.
A kind of test method of internal combustion engine reciprocating vibration Heat Transfer Simulation experimental rig, comprises the following steps：
Step 1：According to studied type length of connecting rod, simplified connecting rod 13 is produced, by connecting rod 13 and 24 company of rotation of rod journal
It connects；Then analogue crank length is adjusted to actual type crank length by rotating handwheel 16；Connecting rod 13 and mandril 11 are rotated
Connection；It installs and variable toggle 14 is kept to be located at bottom dead center position；And mandril 11 passes through mandril Guiding machine with rack 1
Structure is slidably connected, and ensures 11 verticality of mandril by the mandril guiding mechanism；
Step 2：Temperature sensor 41, tip temperature sensor 42, the right side on the left of being installed on inner-cooling oil recess cooling piston test specimen 9
Side temperature sensor 43, bottom temp sensor 44 are installed interior cold for measuring in fueller and excess oil collection device 12
9 oil inlet of oil pocket cooling piston test specimen, oil outlet temperature temperature sensor, inner-cooling oil recess is then cooled down into piston test specimen
9 are bolted on test specimen mounting platform 10, and adjusting the position of atomizer 7 makes its face inner-cooling oil recess cool down piston test specimen
9 oil inlets install incubator 8 and resistance wire；
Step 3：Start Oil pump electrical machinery 5, after 6 pressure of accumulator reach experiment value and it is constant after, open atomizer solenoid valve, spray
Oil nozzle 7 sprays high-pressure oil to 9 oil inlet of inner-cooling oil recess cooling piston test specimen, and observation inner-cooling oil recess cooling piston test specimen 9 is static
Machine oil sprays into situation when lower dead center；
Step 4：Order is sent by host computer, slave computer control servo motor device 15 starts, and makes variable toggle
14 steady runnings under certain rotating speed, it is cold in test specimen mounting platform 10 and its top so as to be driven by connecting rod 13, mandril 11
Oil pocket cooling piston test specimen 9 is moved back and forth by given rule；
Step 5：Computer heating control case switch is opened, is powered to resistance wire, to the inner-cooling oil recess cooling piston test specimen 9 in incubator 8
It is heated, makes 9 temperature stabilization of inner-cooling oil recess cooling piston test specimen 200 ± 3
In the range of degree；
Step 6：After 30 seconds, the 9 inner engine oil movement of inner-cooling oil recess cooling piston test specimen changes in stable periodicity, temperature data note
Record 9 oil inlet of temperature and inner-cooling oil recess cooling piston test specimen of each test point on instrument record inner-cooling oil recess cooling piston test specimen 9
The temperature of mouth and oil outlet；
Step 7：After five minutes, end is observed and recorded, is first shut off computer heating control case, then stops oil spout and simultaneously closes off servo electricity
The switch of machine device 15；Host computer analyzes the data of collection, and 9 oil pocket wall of inner-cooling oil recess cooling piston test specimen is calculated
Face average heat transfer coefficient；
Step 8：Oil spout temperature, the injection pressure of high-pressure oil pump 4 and servo in oil supply system are changed by control and measuring system
The rotating speed of electric machine 15 draws the experimental data under different operating modes by experiment.
The principle that the present invention designs：Variable toggle 14 is driven by servo motor device 15, drives mandril 11
It pumps under the constraint of 1 guiding mechanism of rack, and to be fixed on testpieces installation flat for inner-cooling oil recess cooling piston test specimen 9
The top of platform 10, so as to by variable toggle 14 and testpieces（Inner-cooling oil recess cooling piston test specimen 9）It separates, the side of being able to
Just oil duct oil collecting device is arranged and to variable toggle 14 etc. is driven to be lubricated；It is driven by slip screw
Realize the step-less adjustment of 17 axial position of sliding screw；Piston heating system carries out constant temperature to inner-cooling oil recess cooling piston test specimen 9
Heating, measures according to temperature sensor inside inner-cooling oil recess cooling piston test specimen 9 and the temperature of oil inlet and outlet, applied thermodynamics
Formula obtains oil outlet chamber wall surface average heat transfer coefficient.
The present invention has the following advantages compared with prior art：
1st, the slip by mandril 11 under the constraint of rack guiding mechanism, translates up piston motion, so as to by variable crank
Linkage 14 and testpieces（Inner-cooling oil recess cooling piston test specimen 9）It separates；Inner-cooling oil recess cooling piston examination after separation
Part 9 times is provided with the excess oil collection device 12 with louver(-vre) 37, collects from the 9 oil outlet outflow of inner-cooling oil recess cooling piston test specimen
Machine oil and sprayed from fueller but be not injected into the machine oil of 9 oil inlet of inner-cooling oil recess cooling piston test specimen, this is because ventilation
Window 37 connects air, and such 12 internal pressure of excess oil collection device is consistent with environment in actual crank case close to atmospheric pressure, avoids
The elevated pressures influences to oil duct oil outlet fuel-displaced inside other oil collecting devices；Lower framework closing simultaneously, convenient for logical
Cross bent axle or disc splash lubrication.
It 2nd, can be to crank length certain by comprising the bent axle and crank length spiral regulating device being rotatablely connected at 4
In the range of step-less adjustment, therefore the present invention experimental provision versatility it is stronger.
3rd, 9 inside measuring point temperature of piston test specimen and machine oil out temperature are cooled down by measuring inner-cooling oil recess, it can be direct
Investigate the heat exchange situation of piston inner-cooling oil recess wall surface, the i.e. coefficient of heat transfer.
4th, whole rack dynamic equilibrium problems are considered, introduce vibrating balancer 17, by arranging that balance weight subtracts significantly
Vibration, improves each component life and accuracy of observation caused by small unbalance inertia force.
Description of the drawings
Fig. 1 is the general structure schematic diagram of the present invention
Fig. 2 is the top view of main body oscillating mechanism of the present invention；
Fig. 3 is the A-A sectional structure charts of Fig. 2；
Fig. 4 is the surface structure schematic diagram of excess oil collection device 12；
Fig. 5 is the top view of excess oil collection device 12；
Fig. 6 is A-A cross-sectional views in Fig. 5；
Fig. 7 is the front view of excess oil collection device 12；
Fig. 8 is B-B cross-sectional views in Fig. 7；
Fig. 9 cools down 9 structure diagram of piston test specimen for inner-cooling oil recess.
In figure respectively marked as：1. rack；2. crank length adjusting device；3. fuel reserve tank；4. high-pressure oil pump；5. oil pump is electric
Machine；6. accumulator；7. atomizer；8. incubator；9. inner-cooling oil recess cools down piston test specimen；10. test specimen mounting platform；11. mandril；
12. excess oil collection device；13. connecting rod；14. variable toggle；15. servo motor device；16. right trunnion；17. it shakes
Dynamic poise device；18. right crank；19. rod journal；20. left crank；21. sleeve；22. bearing；23. thrust baffle ring or double spiral shells
Female fixed standard part；24. handwheel；25. sliding screw；26. nut；27. top stem casing；28. mandril block set；29. motor output shaft；
Casing on 30.；31. lower casing；32. cavity；33. fuel-displaced collecting pipe；34. it is not injected into oily collecting pipe；35. oil spout oil circuit；In 36.
Spacing board；37. louver(-vre)；38. intermediate plate washer；39. left side square hole；40. right side square hole；41. left side temperature sensor；42. top
Portion's temperature sensor；43. right side temperature sensor；44. bottom temp sensor；45. bolt.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the present invention is further illustrated.
Embodiment 1：As shown in figs 1-9, a kind of internal combustion engine reciprocating vibration Heat Transfer Simulation experimental rig, including main body vibrating machine
Structure, dynamical system, fuel feeding and excess oil collection system, control and measuring system, piston heating system；Wherein：
The main body oscillating mechanism includes rack 1, crank length adjusting device 2, mandril guiding mechanism, connecting rod 13, variable song
Handle linkage 14, mandril 11, test specimen mounting platform 10, inner-cooling oil recess cooling piston test specimen 9, right trunnion 16；
Left side, right side, the top of rack 1 offer mounting hole, and crank length adjusting device 2 passes through the peace in the left side of rack 1
The left side connection of the variable toggle 14 inside Kong Houyu racks 1 is filled, right trunnion 16 passes through the installation on 1 right side of rack
The right side connection of the variable toggles 14 of Kong Houyu, right trunnion 21 is by 1 axial restraint of rack, the installation of 1 top of rack
Mandril guiding mechanism is equipped at hole, test specimen mounting platform 10 is fixed on the surface of rack 1, and upper end and the test specimen of mandril 11 are installed
Platform 10 connects, lower end pass through mandril guiding mechanism after be connected with the upper end of the connecting rod 13 rack 1 inside, the lower end of connecting rod 13 and
The upper end connection of variable toggle 14, crank length adjusting device 2 are used to implement the length of variable toggle 14
Degree is adjusted；Described inner-cooling oil recess cooling piston test specimen 9 is mounted on 10 top of test specimen mounting platform and with oil inlet and fuel-displaced
Mouthful；
The dynamical system includes servo motor device 15, the motor output shaft 29 of servo motor device 15 and right trunnion 21
Connection, servo motor device 15 drives variable toggle 14 to move back and forth by right trunnion 21, and then variable crank
Linkage 14 drives connecting rod 13 to pump；
The fuel feeding and excess oil collection system include fueller and excess oil collection device 12, and fueller is used for inside cold oil
The oil inlet injection machine oil of chamber cooling piston test specimen 9, excess oil collection device 12 cool down piston test specimen 9 for collecting from inner-cooling oil recess
The machine oil and sprayed from fueller but be not injected into the machine oil of 9 oil inlet of inner-cooling oil recess cooling piston test specimen that oil outlet flows out；
The control includes host computer, slave computer with measuring system, and host computer is is connected with slave computer, for being passed to slave computer
Defeated instruction, slave computer are connected with fueller, servo motor device 15, for fueller, servo motor device 15 to be controlled to hold
The status data of fueller, servo motor device 15 is simultaneously fed back to host computer by the instruction of row host computer；The control with
Measuring system is using industrial personal computer as host computer, and PLC is as slave computer；
Piston heating system includes computer heating control case, incubator 8, resistance wire, conducting wire, and resistance wire is mounted in incubator 8 and logical
It crosses conducting wire to be connected with computer heating control case, inner-cooling oil recess cooling piston test specimen 9 is mounted in incubator 8 and is equipped with temperature inside it
Sensor, temperature sensor one end that inner-cooling oil recess cools down inside piston test specimen 9 are connected with computer heating control case, the other end and temperature
Data logger connects, and is separately installed with to measure inner-cooling oil recess cooling piston examination in fueller and excess oil collection device 12
9 oil inlet of part, oil outlet temperature temperature sensor, specifically, for measuring 9 oil inlet of inner-cooling oil recess cooling piston test specimen
The temperature sensor of mouth is mounted in accumulator 6, for measuring the temperature sensor of 9 oil outlet of inner-cooling oil recess cooling piston test specimen
At the upper casing 30 being connected in excess oil collection device 12 with 9 oil outlet of inner-cooling oil recess cooling piston test specimen, fueller
And the temperature sensor in excess oil collection device 12 is directly connected with temperature data recorder, after computer heating control case is powered, is passed through
Resistance wire realizes the heating to incubator 8, and then heats inner-cooling oil recess cooling piston test specimen 9, when inner-cooling oil recess cooling piston examination
When temperature sensor inside part 9 detects that the temperature in inner-cooling oil recess cooling piston test specimen 9 is more than design temperature, computer heating control
Case powers off conducting wire automatically, and inner-cooling oil recess cooling piston test specimen 9 is made to stablize in the range of design temperature.
The crank length adjusting device 2 include handwheel 24, sliding screw 25, nut 26, bearing 22, sleeve 21, only
Push and block circle or double nut fixed standard part 23；Sleeve 21 is mounted in the mounting hole in the left side of rack 1, and bearing 22 is mounted on sleeve
Inside 21, nut 26 is installed on 22 inner ring of bearing and axial restraint, and thrust baffle ring or double nut fixed standard part 23 are fixed on spiral shell
On mother 26, sliding screw 25 is connected with 26 inner thread of nut, and 25 left end of sliding screw is connected with handwheel 24, right end and variable song
The left end connection of handle linkage 14, by rotating handwheel 24, changes the axial position of sliding screw 25, so as to promote variable song
Handle linkage 14 moves.During operating, due to 26 self-locking of sliding screw 25 and nut, 26 conduct of sliding screw 25 and nut
It is whole to be rotated with variable toggle 14；When needing to adjust crank length, fixing nut 26 rotates handwheel 24, changes and slides
The axial position of dynamic screw rod 25, so as to which variable toggle 14 be promoted to move.Have on the shaft of the sliding screw 25
Throw of crankshaft scale value, for determining the radius of crank in current variable toggle 14.By rotating handwheel 24, change
The axial position of sliding screw 25, so as to which variable toggle 14 be promoted to move.
The variable toggle 14 includes left crank 20, rod journal 19, right crank 18, a left side for left crank 20
End is connected with crank length adjusting device 2, and the right end of left crank 20 is connected with the left end of rod journal 19, the right side of rod journal 19
End is connected with the left end of right crank 18, and the right end of right crank 18 is connected with right trunnion 16, the middle part and top of rod journal 19
Connecting rod 13 connect, the mandril guiding mechanism includes top stem casing 27 and mandril block set 28, and mandril block set 28 is located in rack 1
At the mounting hole in portion, top stem casing 27 is mounted on inside mandril block set 28, and 11 lower end of mandril is stretched into after passing through top stem casing 27 in rack 1
Portion, mandril 11 is free to slide in top stem casing 27, mandril 11 and the alloy steel making of top stem casing 19, by retrofit and pairing
Grinding, ensures rational gap, and gap is excessive, easy oil leak and guiding inaccuracy；Gap is too small, unfavorable to lubricating, and easily blocks
Extremely.The lower end of mandril 11 sets engaging lug, and engaging lug is equipped with pin hole, and 13 upper end of connecting rod is small end of connecting rod, and lower end is big end,
Small end of connecting rod is equipped with pin hole, by pin through the pin hole on the pin hole and small end of connecting rod on engaging lug, makes connecting rod 13 and mandril 11
The middle part of rotation connection, the big end of connecting rod 13 and the rod journal 19 of lower end is rotatablely connected, as shown in figure 3, being specially to connect
19 direct horizontal direction of bar axle journal passes through the bore on the big end of connecting rod 13.The pact of bore on the big end of connecting rod 13
Beam ensures 19 center line of rod journal and 16 centerline parallel of right axle neck, realizes correct piston motion rule.Described is variable
Toggle 14 has at crank throw to be rotatablely connected at 4, and the crank length adjusting device 2 can be adjusted by worm drive
Bent axle one end axial position, and bent axle other end axial restraint realize crank length step-less adjustment；Lubricating system is the bent axle
Part is immersed in oil sump or the disc splash lubrication by being attached on bent axle.Mandril 11 and test specimen mounting platform 9, under
The engaging lug at end is rigidly connected.
The variable toggle 14 further includes the vibrating balancer 17 of left and right ends, the vibration balancing of left end
The left end of device 17 is connected with crank length adjusting device 2, and right end is connected with the left end of left crank 20, the vibration balancing dress of right end
It puts 17 left end to be connected with the right end of right crank 18, right end is connected with right trunnion 16.The vibrating balancer 17 includes
Be fixed on left crank 20, the disk on 18 bent axle of right crank and the balance weight being fixed on disk, the balance weight quality and
Position is determined by Force Calculation.Vibrating balancer 17, left crank 20, rod journal 19, the right crank of the left end
18th, the vibrating balancer 17 of right end is hinged, and actual variable toggle 14 is achieved when rotating handwheel 24
Length change.By arranging vibrating balancer 17 to uneven reciprocal inertia force and centrifugal intertia force into action in bent axle offside
Balance.
The fueller includes fuel reserve tank 3, high-pressure oil pump 4, Oil pump electrical machinery 5, accumulator 6, atomizer 7, wherein high
Pressure oil pump 4 is connected respectively with fuel reserve tank 3, Oil pump electrical machinery 5, accumulator 6, and accumulator 6 is connected with atomizer 7, and atomizer 7 passes through spray
Oil nozzle apparatus for adjusting position adjusts to be directed at 9 oil inlet of inner-cooling oil recess cooling piston test specimen.
The inner-cooling oil recess cooling piston test specimen 9 is the top half of the piston containing inner-cooling oil recess, by 45 grade two of bolt
Bolt is fixed on test specimen mounting platform 10.Several are equipped in inner-cooling oil recess cooling piston test specimen 9 with computer heating control case to connect
The temperature sensor connect, it is more than to set that any one inner-cooling oil recess, which cools down the temperature that the temperature sensor in piston test specimen 9 detects,
During definite value, computer heating control case powers off conducting wire automatically.
As shown in figure 9, the temperature sensor inside the inner-cooling oil recess cooling piston test specimen 9 includes left side temperature sensing
Device 41, tip temperature sensor 42, right side temperature sensor 43, bottom temp sensor 44, four temperature sensors are surveyed respectively
Measure the temperature of 9 inside corresponding position of inner-cooling oil recess cooling piston test specimen.
The excess oil collection device 12 includes upper casing 30, lower casing 31, cavity 32, fuel-displaced collecting pipe 33, is not injected into
The test specimen mounting platform 10 on oily collecting pipe 34, oil spout oil circuit 35, louver(-vre) 37, upper casing 30 and top is fixed together and it enters
Mouth is connected with the oil outlet of inner-cooling oil recess cooling piston test specimen 9, and lower casing 31 is located at upper 30 lower end of casing and between upper casing 30
Gap cooperation, lower casing 31 is interior containing middle baffle plate 38, and the cavity 32 with louver(-vre) 37 is mounted on the outside of lower casing 31 and in-between
Equipped with intermediate bulkhead 36, louver(-vre) 37 connects air, and lower casing 31 is divided into two babinets in left and right by middle baffle plate 38, from interior cold
The machine oil of 9 oil outlet outflow of oil pocket cooling piston test specimen is flowed through after casing 30 into the left box body for case 31 of trapping, and is filled from fuel feeding
The machine oil put ejection but be not injected into 9 oil inlet of inner-cooling oil recess cooling piston test specimen is splashed on the wall surface of casing 30 and lower casing 31
Afterwards, the right case of lower casing 31 is fallen under gravity into, cavity 32 is divided into two cavitys in left and right, trapped by intermediate bulkhead 36
The bottom of the left box body of case 31 is equipped with the left side square hole 39 connected with 32 left chamber body of cavity, and the bottom of the right case of lower casing 31 is set
There is the right side square hole 40 connected with 32 right chamber body of cavity, fuel-displaced collecting pipe 33 is connected with 32 left chamber body of cavity, is not injected into oily collection
Pipe 34 is connected with 32 right chamber body of cavity.
Engine oil flow process is that machine oil is supplied to atomizer 7, alignment inner-cooling oil recess cooling piston test specimen 9 from oil spout oil circuit 35
Oil inlet sprays：The machine oil sprayed into inside inner-cooling oil recess cooling piston test specimen 9 vibrates at a high speed with test specimen, finally from inner-cooling oil recess
The 9 oil outlet outflow of piston test specimen is cooled down, by the collection of upper casing 30 and lower casing 31,32 right side of cavity is entered by square hole 40
Insulating space finally flow to measuring container by fuel-displaced collecting pipe 33；And it is not injected into inner-cooling oil recess cooling piston examination from nozzle ejection
The machine oil of part 9 by square hole 39 then directly by upper casing 30 with after the collection of lower casing 31, it is empty to flow to 32 left side isolation of cavity
Between, most drain afterwards through being not injected into oily collecting pipe 34.Connect due to being both provided with transom 37 at the top of 32 left and right sides insulating space of cavity
Logical atmospheric pressure, upper casing 30 and its air pressure inside during lower 31 relative movement of casing are close to atmospheric pressure so that inner-cooling oil recess is cold
But the 9 oil inlet and outlet air pressure of piston test specimen is close to crankcase actual pressure（Close to atmospheric pressure）, avoid existing oil collecting
Technology oil outlet pressure is high to influence the problem of oil outlet is fuel-displaced.
The section of the middle baffle plate 38 is crank shape.Fig. 7 and Fig. 8 is 12 front view of excess oil collection device and B-B
Sectional view：In order to avoid mandril 11 and atomizer 7 are interfered, mandril arrangement is as shown in figure 9,38 section of middle baffle plate is crank throw shape
Shape leaves gap between upper casing 30 and lower casing 31, avoids generating friction during relative motion.
A kind of test method of internal combustion engine reciprocating vibration Heat Transfer Simulation experimental rig, comprises the following steps：
Step 1：According to studied type length of connecting rod, simplified connecting rod 13 is produced, by connecting rod 13 and 24 company of rotation of rod journal
It connects；Then analogue crank length is adjusted to actual type crank length by rotating handwheel 16；Connecting rod 13 and mandril 11 are rotated
Connection；It installs and variable toggle 14 is kept to be located at bottom dead center position；And mandril 11 passes through mandril Guiding machine with rack 1
Structure is slidably connected, and ensures 11 verticality of mandril by the mandril guiding mechanism；
Step 2：Temperature sensor 41, tip temperature sensor 42, the right side on the left of being installed on inner-cooling oil recess cooling piston test specimen 9
Side temperature sensor 43, bottom temp sensor 44 are installed interior cold for measuring in fueller and excess oil collection device 12
9 oil inlet of oil pocket cooling piston test specimen, oil outlet temperature temperature sensor, inner-cooling oil recess is then cooled down into piston test specimen
9 are bolted on test specimen mounting platform 10, and adjusting the position of atomizer 7 makes its face inner-cooling oil recess cool down piston test specimen
9 oil inlets install incubator 8 and resistance wire；
Step 3：Start Oil pump electrical machinery 5, after 6 pressure of accumulator reach experiment value and it is constant after, open atomizer solenoid valve, spray
Oil nozzle 7 sprays high-pressure oil to 9 oil inlet of inner-cooling oil recess cooling piston test specimen, and observation inner-cooling oil recess cooling piston test specimen 9 is static
Machine oil sprays into situation when lower dead center；
Step 4：Order is sent by host computer, slave computer control servo motor device 15 starts, and makes variable toggle
14 steady runnings under certain rotating speed, it is cold in test specimen mounting platform 10 and its top so as to be driven by connecting rod 13, mandril 11
Oil pocket cooling piston test specimen 9 is moved back and forth by given rule；
Step 5：Computer heating control case switch is opened, is powered to resistance wire, to the inner-cooling oil recess cooling piston test specimen 9 in incubator 8
It is heated, makes 9 temperature stabilization of inner-cooling oil recess cooling piston test specimen in the range of 200 ± 3 degree；
Step 6：After 30 seconds, the 9 inner engine oil movement of inner-cooling oil recess cooling piston test specimen changes in stable periodicity, temperature data note
Record 9 oil inlet of temperature and inner-cooling oil recess cooling piston test specimen of each test point on instrument record inner-cooling oil recess cooling piston test specimen 9
The temperature of mouth and oil outlet；
Step 7：After five minutes, end is observed and recorded, is first shut off computer heating control case, then stops oil spout and simultaneously closes off servo electricity
The switch of machine device 15；Host computer analyzes the data of collection, and 9 oil pocket wall of inner-cooling oil recess cooling piston test specimen is calculated
Face average heat transfer coefficient；
Step 8：Oil spout temperature, the injection pressure of high-pressure oil pump 4 and servo in oil supply system are changed by control and measuring system
The rotating speed of electric machine 15 draws the experimental data under different operating modes by experiment.
The specific embodiment of the present invention is explained in detail above in association with attached drawing, but the present invention is not limited to above-mentioned
Embodiment, within the knowledge of a person skilled in the art, can also be before present inventive concept not be departed from
Put that various changes can be made.
Claims (10)
1. a kind of internal combustion engine reciprocating vibration Heat Transfer Simulation experimental rig, which is characterized in that including main body oscillating mechanism, dynamical system
System, fuel feeding and excess oil collection system, control and measuring system, piston heating system；Wherein：
The main body oscillating mechanism includes rack（1）, crank length adjusting device（2）, mandril guiding mechanism, connecting rod（13）、
Variable toggle（14）, mandril（11）, test specimen mounting platform（10）, inner-cooling oil recess cooling piston test specimen（9）, right main shaft
Neck（16）；
Rack（1）Left side, right side, top offer mounting hole, crank length adjusting device（2）Through rack（1）A left side
After the mounting hole of side with rack（1）Internal variable toggle（14）Left side connection, right trunnion（16）Through machine
Frame（1）After the mounting hole on right side with variable toggle（14）Right side connection, right trunnion（21）By rack（1）It is axial
It is fixed, rack（1）Mandril guiding mechanism, test specimen mounting platform are equipped at the mounting hole of top（10）It is fixed on rack（1）Just
Top, mandril（11）Upper end and test specimen mounting platform（10）Connection, lower end pass through mandril guiding mechanism after with rack（1）It is internal
Connecting rod（13）Upper end connection, connecting rod（13）Lower end and variable toggle（14）Upper end connection, crank length
Regulating device（2）It is used to implement variable toggle（14）Length adjustment；The inner-cooling oil recess cooling piston test specimen
（9）Mounted on test specimen mounting platform（10）Top and with oil inlet and oil outlet；
The dynamical system includes servo motor device（15）, servo motor device（15）Motor output shaft（29）With right master
Axle journal（21）Connection, servo motor device（15）Pass through right trunnion（21）Drive variable toggle（14）Reciprocal fortune
It is dynamic, and then variable toggle（14）Drive connecting rod（13）It pumps；
The fuel feeding and excess oil collection system include fueller and excess oil collection device（12）, fueller is for inwardly cold
Oil pocket cools down piston test specimen（9）Oil inlet injection machine oil, excess oil collection device（12）It lives for collecting to cool down from inner-cooling oil recess
Fill in test specimen（9）The machine oil and sprayed from fueller but be not injected into inner-cooling oil recess cooling piston test specimen that oil outlet flows out（9）Oil inlet
The machine oil of mouth；
The control includes host computer, slave computer with measuring system, and host computer is is connected with slave computer, for being passed to slave computer
Defeated instruction, slave computer and fueller, servo motor device（15）Connection, for controlling fueller, servo motor device
（15）Perform the instruction of host computer and by fueller, servo motor device（15）Status data feed back to host computer；
Piston heating system includes computer heating control case, incubator（8）, resistance wire, conducting wire, resistance wire be mounted on incubator（8）It is interior
And it is connected by conducting wire with computer heating control case, inner-cooling oil recess cooling piston test specimen（9）Mounted on incubator（8）Interior and its internal peace
Equipped with temperature sensor, inner-cooling oil recess cooling piston test specimen（9）Internal temperature sensor one end is connected with computer heating control case, separately
One end is connected with temperature data recorder, fueller and excess oil collection device（12）In be separately installed with to measure interior cold oil
Chamber cools down piston test specimen（9）Oil inlet, oil outlet temperature temperature sensor, fueller and excess oil collection device（12）
In temperature sensor be directly connected with temperature data recorder, computer heating control case be powered after, by resistance wire realize to heat preservation
Case（8）Heating, and then heat inner-cooling oil recess cooling piston test specimen（9）, when inner-cooling oil recess cools down piston test specimen（9）Internal temperature
Degree sensor detects that inner-cooling oil recess cools down piston test specimen（9）When interior temperature is more than design temperature, computer heating control case makes automatically
Conducting wire powers off, and inner-cooling oil recess is made to cool down piston test specimen（9）Stablize in the range of design temperature.
2. oil cooling passage Oscillation Flows simulator in internal combustion engine according to claim 1, it is characterised in that：Described
Crank length adjusting device（2）Including handwheel（24）, sliding screw（25）, nut（26）, bearing（22）, sleeve（21）, thrust
Baffle ring or double nut fixed standard part（23）；Sleeve（21）Mounted on rack（1）Left side mounting hole in, bearing（22）Installation
In sleeve（21）Inside, nut（26）It is installed on bearing（22）Inner ring and axial restraint, thrust baffle ring or double nut fixed standard
Part（23）It is fixed on nut（26）On, sliding screw（25）With nut（26）Inner thread connects, sliding screw（25）Left end with
Handwheel（24）Connection, right end and variable toggle（14）Left end connection, by rotating handwheel（24）, change and slide spiral shell
Bar（25）Axial position, so as to promote variable toggle（14）Movement.
3. oil cooling passage Oscillation Flows simulator in internal combustion engine according to claim 1, it is characterised in that：Described
Variable toggle（14）Including left crank（20）, rod journal（19）, right crank（18）, left crank（20）Left end with
Crank length adjusting device（2）Connection, left crank（20）Right end and rod journal（19）Left end connection, rod journal（19）
Right end and right crank（18）Left end connection, right crank（18）Right end and right trunnion（16）Connection, rod journal（19）
Middle part and top connecting rod（13）Connection, the mandril guiding mechanism include top stem casing（27）With mandril block set（28）, top
Stem casing seat（28）Positioned at rack（1）At the mounting hole on top, top stem casing（27）Mounted on mandril block set（28）Inside, mandril（11）
Lower end passes through top stem casing（27）After stretch into rack（1）Inside, mandril（11）In top stem casing（27）In free to slide, mandril（11）'s
Lower end sets engaging lug, and engaging lug is equipped with pin hole, connecting rod（13）Upper end is small end of connecting rod, and lower end is big end, small end of connecting rod
Equipped with pin hole, by pin through the pin hole on the pin hole and small end of connecting rod on engaging lug, make connecting rod（13）With mandril（11）It rotates
Connection, connecting rod（13）Big end and lower end rod journal（19）Middle part rotation connection.
4. oil cooling passage Oscillation Flows simulator in internal combustion engine according to claim 3, it is characterised in that：Described
Variable toggle（14）Further include the vibrating balancer of left and right ends（17）, the vibrating balancer of left end（17）'s
Left end and crank length adjusting device（2）Connection, right end and left crank（20）Left end connection, the vibrating balancer of right end
（17）Left end and right crank（18）Right end connection, right end and right trunnion（16）Connection.
5. oil cooling passage Oscillation Flows simulator in internal combustion engine according to claim 1, it is characterised in that：Described
Fueller includes fuel reserve tank（3）, high-pressure oil pump（4）, Oil pump electrical machinery（5）, accumulator（6）, atomizer（7）, wherein high pressure oil
Pump（4）Respectively with fuel reserve tank（3）, Oil pump electrical machinery（5）, accumulator（6）Connection, accumulator（6）With atomizer（7）Connection, oil spout
Mouth（7）It adjusts to be directed at inner-cooling oil recess cooling piston test specimen by atomizer apparatus for adjusting position（9）Oil inlet.
6. oil cooling passage Oscillation Flows simulator in internal combustion engine according to claim 1, it is characterised in that：Described
Inner-cooling oil recess cools down piston test specimen（9）For the top half of the piston containing inner-cooling oil recess, inner-cooling oil recess cooling piston test specimen（9）It is interior
Equipped with the temperature sensor that several are connected with computer heating control case, any one inner-cooling oil recess cooling piston test specimen（9）Interior temperature
When the temperature that degree sensor detects is more than setting value, computer heating control case powers off conducting wire automatically.
7. oil cooling passage Oscillation Flows simulator in internal combustion engine according to claim 6, it is characterised in that：Described
Inner-cooling oil recess cools down piston test specimen（9）Internal temperature sensor includes left side temperature sensor（41）, tip temperature sensor
（42）, right side temperature sensor（43）, bottom temp sensor（44）, four temperature sensors measure respectively inner-cooling oil recess cooling
Piston test specimen（9）The temperature of internal corresponding position.
8. oil cooling passage Oscillation Flows simulator in internal combustion engine according to claim 1, it is characterised in that：Described
Excess oil collection device（12）Including upper casing（30）, lower casing（31）, cavity（32）, fuel-displaced collecting pipe（33）, be not injected into oily receipts
Collector（34）, oil spout oil circuit（35）, louver(-vre)（37）, upper casing（30）With the test specimen mounting platform on top（10）It is fixed together
And its entrance cools down piston test specimen with inner-cooling oil recess（9）Oil outlet connection, lower casing（31）Positioned at upper casing（30）Lower end and
With upper casing（30）Clearance fit, lower casing（31）Inside contain middle baffle plate（38）, band louver(-vre)（37）Cavity（32）Installation
In lower casing（31）Outside and among it be equipped with intermediate bulkhead（36）, louver(-vre)（37）Connect air, middle baffle plate（38）By under
Casing（31）Two babinets in left and right are divided into, piston test specimen is cooled down from inner-cooling oil recess（9）The machine oil of oil outlet outflow flows through set
Case（30）Afterwards into case of trapping（31）Left box body, from fueller spray but be not injected into inner-cooling oil recess cooling piston test specimen（9）
The machine oil of oil inlet splashes casing（30）With lower casing（31）Wall surface on after, fall under gravity into lower casing（31）'s
Right case, intermediate bulkhead（36）By cavity（32）It is divided into two cavitys in left and right, lower casing（31）The bottom of left box body be equipped with
With cavity（32）The left side square hole of left chamber body connection（39）, lower casing（31）The bottom of right case be equipped with and cavity（32）Right chamber
The right side square hole of body connection（40）, fuel-displaced collecting pipe（33）With cavity（32）Left chamber body connects, and is not injected into oily collecting pipe（34）With
Cavity（32）Right chamber body connects.
9. oil cooling passage Oscillation Flows simulator in internal combustion engine according to claim 7, it is characterised in that：Described
Middle baffle plate（38）Section be crank shape.
10. a kind of test method of internal combustion engine reciprocating vibration Heat Transfer Simulation experimental rig, which is characterized in that comprise the following steps：
Step 1：According to studied type length of connecting rod, simplified connecting rod is produced（13）, by connecting rod（13）With rod journal（24）
Rotation connection；Then by rotating handwheel（16）Analogue crank length is adjusted to actual type crank length；By connecting rod（13）With
Mandril（11）Rotation connection；It installs and keeps variable toggle（14）Positioned at bottom dead center position；And mandril（11）With machine
Frame（1）It is slidably connected by mandril guiding mechanism, mandril is ensured by the mandril guiding mechanism（11）Verticality；
Step 2：Piston test specimen is cooled down in inner-cooling oil recess（9）Temperature sensor on the left of interior installation（41）, tip temperature sensor
（42）, right side temperature sensor（43）, bottom temp sensor（44）, in fueller and excess oil collection device（12）Middle installation
For measuring inner-cooling oil recess cooling piston test specimen（9）Oil inlet, oil outlet temperature temperature sensor, then by interior cold oil
Chamber cools down piston test specimen（9）It is bolted on test specimen mounting platform（10）On, adjust atomizer（7）Position make its face
Inner-cooling oil recess cools down piston test specimen（9）Oil inlet installs incubator（8）And resistance wire；
Step 3：Start Oil pump electrical machinery（5）, treat accumulator（6）Pressure reach experiment value and it is constant after, open atomizer electromagnetism
Valve, atomizer（7）Piston test specimen is cooled down to inner-cooling oil recess（9）Oil inlet sprays high-pressure oil, observation inner-cooling oil recess cooling piston
Test specimen（9）Machine oil sprays into situation when being still in lower dead center；
Step 4：Order, slave computer control servo motor device are sent by host computer（15）Start, make variable crank connecting link
Mechanism（14）The steady running under certain rotating speed, so as to pass through connecting rod（13）, mandril（11）Drive test specimen mounting platform（10）And
Inner-cooling oil recess cooling piston test specimen above it（9）It is moved back and forth by given rule；
Step 5：Computer heating control case switch is opened, is powered to resistance wire, to incubator（8）Interior inner-cooling oil recess cooling piston examination
Part（9）It is heated, inner-cooling oil recess is made to cool down piston test specimen（9）Temperature stabilization is 200 ± 3
In the range of degree；
Step 6：After 30 seconds, inner-cooling oil recess cooling piston test specimen（9）Inner engine oil movement changes in stable periodicity, temperature data
Recorder record inner-cooling oil recess cooling piston test specimen（9）The temperature of upper each test point and inner-cooling oil recess cooling piston test specimen
（9）The temperature of oil inlet and oil outlet；
Step 7：After five minutes, end is observed and recorded, is first shut off computer heating control case, then stops oil spout and simultaneously closes off servo electricity
Machine device（15）Switch；Host computer analyzes the data of collection, and inner-cooling oil recess cooling piston test specimen is calculated（9）Oil
Cavity wall face average heat transfer coefficient；
Step 8：Oil spout temperature, high-pressure oil pump in oil supply system are changed by control and measuring system（4）Injection pressure and watch
Take electric machine（15）Rotating speed, experimental data under different operating modes is drawn by experiment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711023449.XA CN108051225B (en) | 2017-10-27 | 2017-10-27 | Internal combustion engine reciprocating oscillation heat transfer simulation test device and test method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711023449.XA CN108051225B (en) | 2017-10-27 | 2017-10-27 | Internal combustion engine reciprocating oscillation heat transfer simulation test device and test method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108051225A true CN108051225A (en) | 2018-05-18 |
| CN108051225B CN108051225B (en) | 2020-04-07 |
Family
ID=62119476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711023449.XA Active CN108051225B (en) | 2017-10-27 | 2017-10-27 | Internal combustion engine reciprocating oscillation heat transfer simulation test device and test method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108051225B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057859A (en) * | 2019-03-18 | 2019-07-26 | 昆明理工大学 | A kind of simulator and test method of oil duct in piston oscillating heat transfer performance |
| CN110274931A (en) * | 2019-07-03 | 2019-09-24 | 河北科技大学 | A kind of two phase flow oscillation experiment device and experimental method |
| CN110579355A (en) * | 2019-08-16 | 2019-12-17 | 华中科技大学 | device and method for testing vibration performance of cooling oil in piston of internal combustion engine |
| CN113027608A (en) * | 2021-04-06 | 2021-06-25 | 华中科技大学 | Internal combustion engine piston top surface transient temperature remote measuring system and installation method thereof |
| CN113029579A (en) * | 2021-02-04 | 2021-06-25 | 昆明理工大学 | Magnetic drive suspension oscillation heat transfer simulation test device |
| CN113790898A (en) * | 2021-09-14 | 2021-12-14 | 潍柴动力股份有限公司 | Detection device and detection method for cooling efficiency of cold oil duct in piston |
| CN114279711A (en) * | 2021-12-23 | 2022-04-05 | 中国船舶重工集团公司第七一一研究所 | Piston heat transfer test device |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5528928A (en) * | 1995-01-30 | 1996-06-25 | Caterpillar Inc. | Capacitive sensing apparatus for sensing a plurality of operating parameters associated with an engine |
| JP2004092601A (en) * | 2002-09-03 | 2004-03-25 | Chevron Texaco Japan Ltd | Lubricating oil sedimentation testing device of piston under crown |
| CN201373807Y (en) * | 2009-03-13 | 2009-12-30 | 中国船舶重工集团公司第七一一研究所 | Piston vibrating cooling test device |
| CN201475275U (en) * | 2009-06-18 | 2010-05-19 | 梁玉昆 | Stepless speed adjustor |
| CN101793607A (en) * | 2010-03-30 | 2010-08-04 | 山东大学 | Cooling test device of engine piston injected oil |
| CN102032991A (en) * | 2010-11-16 | 2011-04-27 | 北京理工大学 | Engine piston oscillating and cooling test device |
| CN202177509U (en) * | 2011-07-22 | 2012-03-28 | 天津雷沃动力股份有限公司 | Testing apparatus for testing jetting state of cooling nozzle |
| RU2473067C1 (en) * | 2011-08-12 | 2013-01-20 | Учреждение Российской академии наук Институт проблем управления им. В.А. Трапезникова РАН | Method of diagnosing internal combustion engine |
| CN202867746U (en) * | 2012-11-06 | 2013-04-10 | 中国矿业大学 | Reciprocating motion mechanism with stroke adjustable |
| CN103048141A (en) * | 2012-12-31 | 2013-04-17 | 武汉理工大学 | Test system for heat exchange of internal cooling oil duct of internal-combustion engine piston |
| CN103398852A (en) * | 2013-08-01 | 2013-11-20 | 中国北方发动机研究所(天津) | Piston cooling oil testing device and testing method |
| CN103543015A (en) * | 2013-09-22 | 2014-01-29 | 华中科技大学 | Cooling experiment measuring device for oil injection of piston of internal combustion engine |
| JP2014126459A (en) * | 2012-12-26 | 2014-07-07 | National Fisheries Univ | State monitoring system of reciprocating mechanical device, and method and program thereof |
| CN205785799U (en) * | 2016-07-11 | 2016-12-07 | 滨州学院 | A kind of dynamic and visual target practice testing stand |
-
2017
- 2017-10-27 CN CN201711023449.XA patent/CN108051225B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5528928A (en) * | 1995-01-30 | 1996-06-25 | Caterpillar Inc. | Capacitive sensing apparatus for sensing a plurality of operating parameters associated with an engine |
| JP2004092601A (en) * | 2002-09-03 | 2004-03-25 | Chevron Texaco Japan Ltd | Lubricating oil sedimentation testing device of piston under crown |
| CN201373807Y (en) * | 2009-03-13 | 2009-12-30 | 中国船舶重工集团公司第七一一研究所 | Piston vibrating cooling test device |
| CN201475275U (en) * | 2009-06-18 | 2010-05-19 | 梁玉昆 | Stepless speed adjustor |
| CN101793607A (en) * | 2010-03-30 | 2010-08-04 | 山东大学 | Cooling test device of engine piston injected oil |
| CN102032991A (en) * | 2010-11-16 | 2011-04-27 | 北京理工大学 | Engine piston oscillating and cooling test device |
| CN202177509U (en) * | 2011-07-22 | 2012-03-28 | 天津雷沃动力股份有限公司 | Testing apparatus for testing jetting state of cooling nozzle |
| RU2473067C1 (en) * | 2011-08-12 | 2013-01-20 | Учреждение Российской академии наук Институт проблем управления им. В.А. Трапезникова РАН | Method of diagnosing internal combustion engine |
| CN202867746U (en) * | 2012-11-06 | 2013-04-10 | 中国矿业大学 | Reciprocating motion mechanism with stroke adjustable |
| JP2014126459A (en) * | 2012-12-26 | 2014-07-07 | National Fisheries Univ | State monitoring system of reciprocating mechanical device, and method and program thereof |
| CN103048141A (en) * | 2012-12-31 | 2013-04-17 | 武汉理工大学 | Test system for heat exchange of internal cooling oil duct of internal-combustion engine piston |
| CN103398852A (en) * | 2013-08-01 | 2013-11-20 | 中国北方发动机研究所(天津) | Piston cooling oil testing device and testing method |
| CN103543015A (en) * | 2013-09-22 | 2014-01-29 | 华中科技大学 | Cooling experiment measuring device for oil injection of piston of internal combustion engine |
| CN205785799U (en) * | 2016-07-11 | 2016-12-07 | 滨州学院 | A kind of dynamic and visual target practice testing stand |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057859A (en) * | 2019-03-18 | 2019-07-26 | 昆明理工大学 | A kind of simulator and test method of oil duct in piston oscillating heat transfer performance |
| CN110274931A (en) * | 2019-07-03 | 2019-09-24 | 河北科技大学 | A kind of two phase flow oscillation experiment device and experimental method |
| CN110274931B (en) * | 2019-07-03 | 2024-02-27 | 河北科技大学 | Two-phase flow oscillation experimental device and experimental method |
| CN110579355A (en) * | 2019-08-16 | 2019-12-17 | 华中科技大学 | device and method for testing vibration performance of cooling oil in piston of internal combustion engine |
| CN113029579A (en) * | 2021-02-04 | 2021-06-25 | 昆明理工大学 | Magnetic drive suspension oscillation heat transfer simulation test device |
| CN113027608A (en) * | 2021-04-06 | 2021-06-25 | 华中科技大学 | Internal combustion engine piston top surface transient temperature remote measuring system and installation method thereof |
| CN113027608B (en) * | 2021-04-06 | 2022-03-01 | 华中科技大学 | Internal combustion engine piston top surface transient temperature remote measuring system and installation method thereof |
| CN113790898A (en) * | 2021-09-14 | 2021-12-14 | 潍柴动力股份有限公司 | Detection device and detection method for cooling efficiency of cold oil duct in piston |
| CN113790898B (en) * | 2021-09-14 | 2024-05-17 | 潍柴动力股份有限公司 | Detection device and detection method for cooling efficiency of piston inner cooling oil duct |
| CN114279711A (en) * | 2021-12-23 | 2022-04-05 | 中国船舶重工集团公司第七一一研究所 | Piston heat transfer test device |
| CN114279711B (en) * | 2021-12-23 | 2024-03-29 | 中国船舶集团有限公司第七一一研究所 | Piston heat transfer test device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108051225B (en) | 2020-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108051225A (en) | A kind of internal combustion engine reciprocating vibration Heat Transfer Simulation experimental rig and its test method | |
| CN108007693A (en) | Oil cooling passage Oscillation Flows simulator and test method in a kind of internal combustion engine | |
| CN205593870U (en) | Experimental device for test engine piston ring - lubricated friction properties of cylinder liner | |
| CN100507507C (en) | Friction-loss and vibration analog experimental equipment for main motion components of IC engine | |
| CN106840673B (en) | Marine diesel slides base bearing pyroelectric signal caliberating device and scaling method | |
| CN105372068B (en) | A kind of simulation test shafting torsional vibration of turbo-generator set and the assay device of intensity thereof | |
| CN101509824A (en) | Piston shaker cooling simulation test apparatus and test method thereof | |
| US5007284A (en) | Piston ring and liner wear simulator and method of using same | |
| CN102313630A (en) | Method for quickly and actually measuring sealing performance of valve oil seal of engine | |
| CN102607835B (en) | Film lubrication and heat transfer testing system for high-speed friction pair | |
| CN105445124A (en) | Air valve high temperature fatigue testing machine | |
| CN103048141B (en) | Test system for heat exchange of internal cooling oil duct of internal-combustion engine piston | |
| CN108051219B (en) | Reciprocating motion simulation mechanism of internal combustion engine with variable crank radius | |
| CN103543015A (en) | Cooling experiment measuring device for oil injection of piston of internal combustion engine | |
| Lijun et al. | Influence of cooling gallery structure on the flow patterns of two-phase flow and heat transfer characteristics | |
| CN105938049A (en) | Dynamic visual targeting test platform and test method | |
| CN202501982U (en) | Thin-film lubrication for high speed friction pair and heat transfer test system | |
| CN112781883B (en) | Visual device for engine oil movement condition in piston inner cooling oil cavity | |
| CN106769451B (en) | A kind of hot-work die heat engine fatigue experimental device | |
| Pandey et al. | Multidimensional CFD Studies of Oil Drawdown in an i-4 Engine | |
| CN105241658B (en) | A kind of varying load operating mode hydraulic cylinder elastohydrodynamic lubrication experimental provision | |
| CN205333439U (en) | Valve high temperature fatigue testing machine | |
| CN213398044U (en) | Testing device for accurately describing ice abrasion degree of concrete | |
| CN109506935A (en) | A kind of high-speed rail bearing fatigue life test machine with lubricating and cooling | |
| CN112098252A (en) | Testing device and method for accurately describing ice abrasion degree of concrete |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220617 Address after: 239000 No. 3, Weiyi Road, economic development zone, Quanjiao County, Chuzhou City, Anhui Province Patentee after: Anhui jialaidun piston auto parts Co.,Ltd. Address before: 650093 No. 253, Xuefu Road, Wuhua District, Yunnan, Kunming Patentee before: Kunming University of Science and Technology |
|
| TR01 | Transfer of patent right |