CN202693437U - Cylinder cover heat shock test bed with pre-tightening force being considered - Google Patents
Cylinder cover heat shock test bed with pre-tightening force being considered Download PDFInfo
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- CN202693437U CN202693437U CN 201220288467 CN201220288467U CN202693437U CN 202693437 U CN202693437 U CN 202693437U CN 201220288467 CN201220288467 CN 201220288467 CN 201220288467 U CN201220288467 U CN 201220288467U CN 202693437 U CN202693437 U CN 202693437U
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Abstract
The utility model discloses a cylinder cover heat shock test bed with pre-tightening force being considered. The cylinder cover heat shock test bed with the pre-tightening force being considered comprises a testing apparatus and a control system. The testing apparatus comprises a to-be-tested cylinder cover, bolts, an air valve mechanism, infrared heaters, a heat insulation pad, a cylinder pad, an induction heating coil, a fake machine body, a fixing rack, an induction heater control system, an infrared heater control system, a water pump, a water tank, a heater, a temperature controller and the like, wherein the air valve mechanism is arranged on the to-be-tested cylinder cover, the to-be-tested cylinder cover, the heat insulation pad, the cylinder pad and the fake machine body are sequentially connected and fixed through the bolts. The infrared heaters are arranged on the front side and the back side of the to-be-tested cylinder cover, the induction heating coil is arranged in the fake machine body, the to-be-tested cylinder cover is connected with the water tank through a water pipe, the water tank is driven by the water pump and used carry out forced water cooling on the to-be-tested cylinder cover, and the testing apparatus is controlled by the control system. The pre-tightening force as mechanical limitation is considered in the cylinder cover heat shock test bed, consequently actual working condition can be simulated authentically, heat fatigue and heat shock states of the cylinder cover can be researched and analyzed accurately, and therefore reliability of testing results can be improved.
Description
Technical field
The utility model relates to considers the pretightning force Heat Shock Test Bench, relates in particular to a kind of cylinder cap Heat Shock Test Bench of considering pretightning force.
Background technology
Along with popularizing and development of the technology such as improving constantly of engine reinforcing degree, particularly supercharging, the thermal load of engine cylinder cover and mechanical load problem become increasingly conspicuous, and directly have influence on functional reliability and the serviceable life of complete machine.In engine working process, the heating parts such as cylinder cap bear the dual test of alternation thermal load and the mechanical load that caused by the pretightning force constraint mostly simultaneously, than being easier to occur hot tearing, burning phenomenon.Combined action and the impact of the factors such as the main heat fatigue of the reliability of cylinder cap, thermal shock, high-temerature creep and mechanical fatigue, the inevitable fine crack that cylinder cap exists in casting process can be in alternating thermal stress and Machine Movement Process, generation stress is concentrated, and then cracking near fire power face side or firepower surface, and progressively expansion so that fracture, the reliability of serious threat internal combustion engine and security.How to consider various factors impact, in the temperature field and the basis of the thermal stress coupling effect that considers various mechanical stresses become the focus of present engine design.
The main stress that pretightning force is subject under nominal situation as cylinder cap, its large young pathbreaker produces the impact of can not ignore to the mission life of cylinder cap.When the engine cylinder cover bolt pretightening is too small, cylinder cap is caused because not pressing tightly the cylinder pad from cylinder pad gas leakage, leakage of oil, and reduce the ratio of compression of engine, so that the dynamic property of engine, economy, functional reliability descend.When pretightning force was excessive, easily so that bolt produces permanent stretcher strain, pretightning force descended on the contrary, even causes slide fastener or the phenomenon that fractures, and cylinder body screw thread subject to damage, thereby affects the sealing of cylinder body and body.
The in advance experimental study of gas engine part is the basic of internal combustion engine product development.The thermal shock simulation test is the temperature field of simulation heated part, analyzes one of effective means of its maximum thermal stress that can bear, thermal strain and thermal fatigue life.And the thermal load that the more performance of the damage problem of cylinder cap is born owing to parts produces, so the thermal shock simulation test is the important method of research cylinder cap reliability, only have truly simulation cylinder head temperature field, could its heat resistanceheat resistant load performance of accurate evaluation.Therefore the ripe complete thermal shock test system of design draws cylinder cap heat fatigue, thermal shock process under the realistic operating mode, has become the another large important topic of Hyundai Motor industry.But, present component structural strength study aspect, pretightning force only is applied to detecting in the mechanical fatigue of gas engine part, do not relate in thermal modeling test, and engine cylinder head system is inevitable bearing pretightening force under nominal situation.This ignoring the pretightning force impact, can cause and actual condition between error, thermal deformation exerts an influence to parts also to have found the constraint of pretightning force in finite element simulation calculates, therefore, the constraint of ignoring pretightning force in the cylinder cap thermal shock simulation test procedure can reduce the confidence level of test findings greatly.
Based on above reason, the cylinder cap heat fatigue of consideration pretightning force, the development of thermal shock test system are for simulating more realistically actual condition, accurately research and analyse the hot state of cylinder cap, fill up the scientific research blind spot of present heat fatigue, thermal shock test system, to improving the design of cylinder cap, improve internal combustion engine and other member functional reliability and overall performance, increase economic efficiency etc. all significant.
Summary of the invention
In order to solve deficiency of the prior art, the purpose of this utility model is to provide a kind of cylinder cap Heat Shock Test Bench of considering pretightning force.
For solving this technical problem, the technical solution of the utility model is:
Consider the cylinder cap Heat Shock Test Bench of pretightning force, comprise test unit and control system, wherein test unit comprises the first rotary switch, cylinder cap to be measured, bolt, valve mechanism, infrared heater, heat insulating mattress, cylinder pad, load coil, false body, fixing with stand, induction heater control system, infrared heater control system, water pump, rising pipe, water tank, well heater, the second rotary switch, electric wire, water inlet pipe, recirculatory pipe, first handle switch, entering water electromagnetic valve, second handle switch, temperature controller and thermopair; Install valve mechanism additional on the cylinder cap to be measured, cylinder cap to be measured, heat insulating mattress, the cylinder pad, false body links to each other in turn, and be bolted, both sides arrange infrared heater before and after the cylinder cap to be measured, be provided with load coil in the false body, false body is placed on fixing with on the stand, infrared heater links to each other with the infrared heater control system, be provided with well heater in the water tank, temperature controller, well heater links to each other with Programmable Logic Controller through temperature controller, water outlet of water tank links to each other with cylinder cap water inlet to be measured through rising pipe, rising pipe is provided with water pump, the first rotary switch, the water tank recirculatory pipe links to each other with cylinder cap water delivering orifice to be measured, moisture from water inlet pipe is two-way, a-road-through is toward load coil, another road is through the first handle switch, entering water electromagnetic valve control, flow into water tank, overflow pipe is divided into two-way, a-road-through is toward the gap of water tank upper end, another road is connected to the water tank lower end through the second handle switch, load coil links to each other with the induction heater control system through electric wire, load coil links to each other with the water tank refluxing opening through recirculatory pipe, be provided with the second rotary switch at water inlet pipe, the thermopair that cylinder cap to be measured is provided with, thermopair is connected to the testing table control system successively by signal wire, and the induction heater control system links to each other with Programmable Logic Controller respectively with the infrared heater control system, and test unit is controlled by control system.
Described control system comprises temperature transmitter, an AD module, the 2nd AD module, the 3rd AD module, relay, Programmable Logic Controller, communication module, PC, printer, display; Programmable Logic Controller links to each other with an AD module, the 2nd AD module, the 3rd AD module, relay, communication module respectively, temperature transmitter links to each other with an AD module, the 2nd AD module, the 3rd AD module respectively, communication module links to each other with PC, and PC links to each other with printer, display.
The utility model proposes the engine test system that can substitute present cylinder cap thermal shock test.Current stage particularly, thermal modeling test is not all considered the impact of mechanical constraint, and the utility model has been introduced pretightning force as mechanical constraint, can simulate more realistically actual condition, accurately research and analyse heat fatigue, the thermal shock state of cylinder cap, thereby improve the confidence level of test findings.
Description of drawings
Fig. 1 is for considering the cylinder cap Heat Shock Test Bench structural representation of pretightning force;
Fig. 2 is inductive coil canoe schematic diagram of the present utility model;
Fig. 3 is induction heating schematic diagram of the present utility model;
Fig. 4 is cooling schematic diagram of the present utility model;
Fig. 5 is control system schematic diagram of the present utility model;
Among the figure: the first rotary switch 1, cylinder cap to be measured 2, bolt 3, valve mechanism 4, infrared heater 5, heat insulating mattress 6, cylinder pad 7, load coil 8, false body 9, fixing with stand 10, induction heater control system 11, infrared heater control system 12, water pump 13, rising pipe 14, water tank 15, well heater 16, the second rotary switch 17, electric wire 18, water inlet pipe 19, recirculatory pipe 20, first handle switch 21, entering water electromagnetic valve 22, second handle switch 23, temperature controller 24.
Embodiment
Such as Fig. 1,3, shown in 4, the cylinder cap Heat Shock Test Bench of considering pretightning force comprises test unit and control system, and wherein test unit comprises the first rotary switch 1, cylinder cap 2 to be measured, bolt 3, valve mechanism 4, infrared heater 5, heat insulating mattress 6, cylinder pad 7, load coil 8, false body 9, fixing with stand 10, induction heater control system 11, infrared heater control system 12, water pump 13, rising pipe 14, water tank 15, well heater 16, the second rotary switch 17, electric wire 18, water inlet pipe 19, recirculatory pipe 20, first handle switch 21, entering water electromagnetic valve 22, second handle switch 23, temperature controller 24 and thermopair;
Install valve mechanism 4 additional on the cylinder cap 2 to be measured, cylinder cap 2 to be measured, heat insulating mattress 6, cylinder pad 7, false body 9 links to each other in turn, and fixing by bolt 3, both sides, cylinder cap to be measured 2 front and back arrange infrared heater 5, be provided with load coil 8 in the false body 9, false body 9 is placed on fixing with on the stand 10, infrared heater 5 links to each other with infrared heater control system 12, be provided with well heater 16 in the water tank 15, temperature controller 24, well heater 16 links to each other with Programmable Logic Controller through temperature controller 24, water tank 15 water delivering orifices link to each other with cylinder cap 2 water inlets to be measured through rising pipe 14, rising pipe 14 is provided with water pump 13, the first rotary switch 1, water tank 15 recirculatory pipes link to each other with cylinder cap 2 water delivering orifices to be measured, moisture from water inlet pipe is two-way, a-road-through is toward load coil 8, another road is through first handle switch 21, entering water electromagnetic valve 22 controls, flow into water tank 15, overflow pipe is divided into two-way, a-road-through is toward the gap of water tank 15 upper ends, another road is connected to water tank 15 lower ends through second handle switch 23, load coil 8 links to each other with induction heater control system 11 through electric wire 18, load coil 8 links to each other with water tank 15 refluxing openings through recirculatory pipe 20, be provided with the second rotary switch 17 at water inlet pipe 19, the thermopair that cylinder cap 2 to be measured is provided with, thermopair is connected to the testing table control system successively by signal wire, induction heater control system 11 links to each other with Programmable Logic Controller respectively with infrared heater control system 12, and test unit is controlled by control system.
As shown in Figure 5, control system comprises temperature transmitter, an AD module, the 2nd AD module, the 3rd AD module, relay, Programmable Logic Controller, communication module, PC, printer, display; Programmable Logic Controller links to each other with an AD module, the 2nd AD module, the 3rd AD module, relay, communication module respectively, temperature transmitter links to each other with an AD module, the 2nd AD module, the 3rd AD module respectively, communication module links to each other with PC, and PC links to each other with printer, display.
The cylinder cap thermal shock test method of considering pretightning force comprises the steps:
1) 4 thermopairs are welded on respectively near place, two sides before and after the cylinder cap to be measured 2 intake and exhaust doorway nears, the atomizer, place, ridge area centre position;
2) choose a block length and width dimensions respectively the rectangular parallelepiped cast iron identical with width dimensions with the length of cylinder cap 2 to be measured make false body 9, be cast with threaded hole carrying out the bolt junction with cylinder cap 2 to be measured, with false body 9 middle parts over against cylinder cap to be measured 2 fire power face places, the circle take fire power face the end of as, false body 9 is punched with the right cylinder form, after installing heat insulating mattress 6, cylinder pad 7 additional, be connected with cylinder cap 2 to be measured with bolt 3;
3) apply pretightning force with cylinder cap 2 equal sizes to be measured at bolt 3;
4) select plane thread formula induction heating head, make two independently inductive coils of semi-circular canoe;
5) at PC control model, test number, cylinder cap parameter to be measured, cycle index, basal temperature, cylinder cap heating-up temperature to be measured or heat time heating time, Cooling of Cylinder Head temperature to be measured or cool time, cooling water temperature, data memory gap are set;
6) open infrared heater 5, after cylinder cap 2 to be measured is heated to the basal temperature of setting, load coil 8 energisings, continue heating cylinder cap 2 to be measured, when the temperature that detects cylinder cap 2 to be measured when thermopair reaches set the highest control temperature, or when reaching heat time heating time, then Programmable Logic Controller sends signal, load coil 8 outages start water pump 13 work, and cylinder cap 2 to be measured is cooled to basal temperature, or after reaching cool time, Programmable Logic Controller sends signal and switches off the pump immediately 13, stops cooling water circulation, so far finishes the one action circulation; So repeat above-mentioned do action, until set cycle index.
Consider versatility and the simplicity of testing table, having adopted the false body 9 of designed, designed to carry out bolt with cylinder cap 2 to be measured is connected, like this when the cylinder cap that adopts different model carries out thermal shock test, size that can be by changing false body 9 and material are with the diversified requirement of adequacy test system.False body 9 be shaped as rectangular parallelepiped, be cast with corresponding threaded hole carrying out the bolt junction with cylinder cap 2 to be measured, be the firing chamber of simulation cylinder head fire power face below, false body middle part is punched with the right cylinder form, in order to place load coil 8.Be simulating actual conditions more realistically, between cylinder cap to be measured and false body, added cylinder pad 6, between cylinder cap 2 to be measured and false body 9, add heat insulating mattress 6, place on the cylinder pad 7, can completely cut off like this heat transmission between cylinder cap fire power face and the false body, make fire power face in heating process, can reach in the short period of time the maximum temperature that test sets.
Consider the cylinder lid surface various ducts that distributing, be unfavorable for the circulation of homogeneous heating and chilled water, therefore install valve mechanism 4 additional at cylinder cap 2 to be measured, so that fire power face base closed, chilled water Inlet and outlet water duct is got through on two surfaces about cylinder cap to be measured, internal direct is connected to the cylinder cap water channel, adopts seal pad to seal in the unnecessary duct of cylinder cap outside surface to be measured simultaneously.
Thermopair is used for gathering the temperature value of each measuring point on the cylinder cap, as the major control signal of Heat Shock Test Bench.Can adopt K type thermopair to detect the cylinder cap temperature, 4 measuring points are installed.Thermopair is welded on the cylinder cap to be measured by thermocouple welding instrument.
The thermocouple lead of each measuring point directly is connected on the temperature transmitter in the temperature transmitter case.Temperature transmitter is converted to the electromotive force of the thermopair on the cylinder cap standard two-wire system signal of 4～20mA, then imports on 4 general-purpose simulation amount load modules of PLC by twisted-pair feeder.These load modules carry out the A/D conversion to the signal that imports into, then give PLC with test bit, with the major control signal as Heat Shock Test Bench under the temperature model, all data communication devices are crossed the RS232 communication port and are uploaded in the monitoring PC computing machine and count database simultaneously, in order to post-processed.
The user can according to the heating head shape of cylinder cap type and test demand designed, designed induction heater, simulate different heated perimeters and the purpose of heating intensity to reach for the heated part of different cylinder caps.This testing table is selected plane thread formula induction heating head, and the concrete canoe of coil can set up on their own according to cylinder cap type and test needs.For the heating efficiency of guaranteeing fire power face is tried one's best evenly; the inductive coil arrangement mode that this pilot system adopts as shown in Figure 2; be two independently semi-circular canoe be connected in parallel; wherein the arrow indication is direction of current; the be heated fire power face of the whole cylinder cap to be measured of heating under the prerequisite of central part can not reduced like this; corresponding two valve centers of cylinder cap respectively, the center of two back-shaped positions simultaneously are to reach this test demand.
Heat Shock Test Bench adopts cooling water circulation that cylinder cap 2 to be measured and load coil 8 are cooled off.Cylinder cap 2 left and right sides to be measured have been got through chilled water Inlet and outlet water duct, and cylinder cap water channel inner and to be measured communicates, and are connected with water tank 15 by water pipe, are driven circulating water under the simulation actual condition by water pump 13.Cooling water temperature can arrange on temperature controller 24 before test voluntarily.Duration of test, temperature control system will remain that cooling water temperature is stabilized within ℃ scope of set temperature ± 5.Constant for guaranteeing coolant water temperature, water tank 15 interior well heater 16, hot water gap and the cold water water intaking valves installed.Temperature controller 24 is according to thermal resistance signal, the action of control heater 16 and water intaking valve.Namely when water temperature during than low 5 ℃ of set cooling water temperature, drive relay closes, make cooling water heater 16 energisings, to the heating of the chilled waters in the water tank 15; When water temperature during than high 5 ℃ of set cooling water temperature, drive the cold water water intaking valve and open, along with the adding of cold water, the hot water that is positioned at water tank 15 tops then automatically overflows along gap, thereby the cooling water temperatures in the water tank 15 are descended.Water tank 15 interior temperature control self-organizing systems are by temperature controller 24 controls.The cooling schematic diagram as shown in Figure 4.
(1) first rotary switch 1, Cooling of Cylinder Head Water flow adjusting valve to be measured is used for regulating Cooling of Cylinder Head discharge to be measured, to regulate cooldown rate.
(2) second rotary switches 17, load coil 8 cooling water flow adjustable valves are used for regulating load coil 8 cooling water flows, to guarantee that load coil 8 fully cools off.
(3) the first handle switch 21, and the manual water intaking valve of cooling water tank 15 is used for test forward direction cooling water tank 15 and adds water, when gap has water to overflow, please close this valve.
(4) the second handle switch 23, cooling water tank 15 draining valves.When the time interval of twice test is longer, in order to prevent scale, perhaps please after off-test, open this valve for antifreeze winter, drain the water in the water tank 15.
(5) well heater 16, and when water temperature was lower than design temperature in the water tank 15, well heater 16 was by temperature controller 24 control heating.
(6) entering water electromagnetic valve 22, and when water temperature in the water tank 15 surpassed design temperature, it was opened by temperature controller 24 controls, is filled with cold water in water tank 15, to keep water tank 15 temperature constant.
For warranty test carries out safely, testing table can also arrange following safety and warning device:
(1) cylinder cap temperature alarm.The highest control temperature that surpass to arrange when heated cylinder lid surface temperature is more than 30 ℃, and when also not automatically switching to cooling procedure, and safety and warning device warning are closed the action of whole pilot system, and show fault category at PC.Otherwise the cylinder lid surface or burn out thermopair of may ablating.
(2) induction heater cooling water channel hydraulic pressure is crossed low the warning.Hydraulic pressure is excessively low in cooling water pipeline, and is inadequate to the intensity of cooling of induction heater, and safety and warning device are reported to the police, and closes the action of whole pilot system, and show fault category at PC.
The control system schematic diagram as shown in Figure 5.The control of testing table and surveillance are used for realization to the automatic control ﹠ monitor of process of the test.Its main components comprises that PLC installs concentratedly in electrical control cabinet, PC that is used for process monitoring and test figure recording processing of exterior arrangement.PLC is the MELSEC FX of MIT series Programmable logic Controller (PLC), is used for signals collecting and to the control of testing table various piece.Relation between PC and the PLC is: in the process of the test, even close PC, PLC still can work, and test is carried out as usual, and just data recording is interrupted.Control system adopts the upper and lower computer structure, the PLC of higher reliability is arranged as control core, has complementary advantages, so that the simple easy operating of whole test and have very high stability and security.
At last; above announcement only be embodiment of the present utility model; those of ordinary skill in the art can not be provided with cylinder cap Heat Shock Test Bench and the method thereof that thermopair only adopts the consideration pretightning force of temporal mode from all distortion as the cylinder cap 2 to be measured that the disclosed content of the utility model directly derives or associates, and should think within protection domain of the present utility model yet.
Claims (2)
1. cylinder cap Heat Shock Test Bench of considering pretightning force, it is characterized in that comprising test unit and control system, wherein test unit comprises the first rotary switch (1), cylinder cap to be measured (2), bolt (3), valve mechanism (4), infrared heater (5), heat insulating mattress (6), cylinder pad (7), load coil (8), false body (9), fixing with stand (10), induction heater control system (11), infrared heater control system (12), water pump (13), rising pipe (14), water tank (15), well heater (16), the second rotary switch (17), electric wire (18), water inlet pipe (19), recirculatory pipe (20), first handle switch (21), entering water electromagnetic valve (22), second handle switch (23), temperature controller (24) and thermopair; Install valve mechanism (4) on the cylinder cap to be measured (2) additional, cylinder cap to be measured (2), heat insulating mattress (6), cylinder pad (7), false body (9) links to each other in turn, and fixing by bolt (3), both sides arrange infrared heater (5) before and after the cylinder cap to be measured (2), be provided with load coil (8) in the false body (9), false body (9) is placed on fixing with on the stand (10), infrared heater (5) links to each other with infrared heater control system (12), be provided with well heater (16) in the water tank (15), temperature controller (24), well heater (16) links to each other with Programmable Logic Controller through temperature controller (24), water tank (15) water delivering orifice links to each other with cylinder cap to be measured (2) water inlet through rising pipe (14), rising pipe (14) is provided with water pump (13), the first rotary switch (1), water tank (15) recirculatory pipe links to each other with cylinder cap to be measured (2) water delivering orifice, moisture from water inlet pipe is two-way, a-road-through is toward load coil (8), another road is through first handle switch (21), entering water electromagnetic valve (22) control, flow into water tank (15), overflow pipe is divided into two-way, a-road-through is toward the gap of water tank (15) upper end, another road is connected to water tank (15) lower end through second handle switch (23), load coil (8) links to each other with induction heater control system (11) through electric wire (18), load coil (8) links to each other with water tank (15) refluxing opening through recirculatory pipe (20), be provided with the second rotary switch (17) at water inlet pipe (19), the thermopair that cylinder cap to be measured (2) is provided with, thermopair is connected to the testing table control system successively by signal wire, induction heater control system (11) links to each other with Programmable Logic Controller respectively with infrared heater control system (12), and test unit is controlled by control system.
2. a kind of cylinder cap Heat Shock Test Bench of considering pretightning force according to claim 1, it is characterized in that, described control system comprises temperature transmitter, an AD module, the 2nd AD module, the 3rd AD module, relay, Programmable Logic Controller, communication module, PC, printer, display; Programmable Logic Controller links to each other with an AD module, the 2nd AD module, the 3rd AD module, relay, communication module respectively, temperature transmitter links to each other with an AD module, the 2nd AD module, the 3rd AD module respectively, communication module links to each other with PC, and PC links to each other with printer, display.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220288467 CN202693437U (en) | 2012-06-19 | 2012-06-19 | Cylinder cover heat shock test bed with pre-tightening force being considered |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220288467 CN202693437U (en) | 2012-06-19 | 2012-06-19 | Cylinder cover heat shock test bed with pre-tightening force being considered |
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| CN202693437U true CN202693437U (en) | 2013-01-23 |
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| CN 201220288467 Withdrawn - After Issue CN202693437U (en) | 2012-06-19 | 2012-06-19 | Cylinder cover heat shock test bed with pre-tightening force being considered |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735561A (en) * | 2012-06-19 | 2012-10-17 | 浙江大学 | Cylinder head thermal shock test bench based on pre-tightening force, and method thereof |
| CN106323607A (en) * | 2016-07-29 | 2017-01-11 | 中国北方发动机研究所(天津) | Engine cylinder cap heat machine fatigue testing device and method |
| CN107741326A (en) * | 2017-11-13 | 2018-02-27 | 十堰深思科技有限公司 | Engine cylinder cover thermal fatigue test apparatus |
| CN109060578A (en) * | 2018-09-06 | 2018-12-21 | 潍坊思博精工科技有限公司 | A kind of diesel engine cylinder head heat fatigue test device |
| CN109668738A (en) * | 2019-02-28 | 2019-04-23 | 北京理工大学 | A kind of piston temperature field simulation test device and test method |
| CN110095364A (en) * | 2019-04-26 | 2019-08-06 | 哈尔滨工业大学 | A kind of high temperature heat seal high-temperature behavior Thermal-mechanical Coupling test platform |
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2012
- 2012-06-19 CN CN 201220288467 patent/CN202693437U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735561A (en) * | 2012-06-19 | 2012-10-17 | 浙江大学 | Cylinder head thermal shock test bench based on pre-tightening force, and method thereof |
| CN102735561B (en) * | 2012-06-19 | 2014-06-18 | 浙江大学 | Cylinder head thermal shock test bench based on pre-tightening force, and method thereof |
| CN106323607A (en) * | 2016-07-29 | 2017-01-11 | 中国北方发动机研究所(天津) | Engine cylinder cap heat machine fatigue testing device and method |
| CN106323607B (en) * | 2016-07-29 | 2019-02-01 | 中国北方发动机研究所(天津) | A kind of engine cylinder cap heat engine fatigue experimental device and method |
| CN107741326A (en) * | 2017-11-13 | 2018-02-27 | 十堰深思科技有限公司 | Engine cylinder cover thermal fatigue test apparatus |
| CN109060578A (en) * | 2018-09-06 | 2018-12-21 | 潍坊思博精工科技有限公司 | A kind of diesel engine cylinder head heat fatigue test device |
| CN109060578B (en) * | 2018-09-06 | 2023-10-27 | 潍坊思博精工科技有限公司 | Thermal fatigue testing device for cylinder cover of diesel engine |
| CN109668738A (en) * | 2019-02-28 | 2019-04-23 | 北京理工大学 | A kind of piston temperature field simulation test device and test method |
| CN110095364A (en) * | 2019-04-26 | 2019-08-06 | 哈尔滨工业大学 | A kind of high temperature heat seal high-temperature behavior Thermal-mechanical Coupling test platform |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130123 Effective date of abandoning: 20140618 |
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| RGAV | Abandon patent right to avoid regrant |