CN107741326A - Engine cylinder cover thermal fatigue test apparatus - Google Patents
Engine cylinder cover thermal fatigue test apparatus Download PDFInfo
- Publication number
- CN107741326A CN107741326A CN201711115925.0A CN201711115925A CN107741326A CN 107741326 A CN107741326 A CN 107741326A CN 201711115925 A CN201711115925 A CN 201711115925A CN 107741326 A CN107741326 A CN 107741326A
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- China
- Prior art keywords
- cylinder cover
- engine cylinder
- pipeline
- thermal fatigue
- induction coil
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Classifications
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- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention provides a kind of engine cylinder cover thermal fatigue test apparatus, and engine cylinder cover is connected with cylinder body, and is placed on stand slide unit, and engine cylinder cover is connected with radiator, water temperature heating control device by pipeline；Cylinder body is connected with flowmeter by pipeline, water pump is finally coupled to water temperature heating control device；The pipeline of pipeline and flowmeter and water pump wherein outside engine cylinder cover is connected with pipeline, and flow divider is provided with the pipeline；Heated in engine cylinder cover by induction coil, induction coil is connected to electrical power control cabinet, and electrical power control cabinet is also associated with voltage-stabilized power supply, and computer settings are realized and automatically controlled.The present invention is used to detect cylinder cap thermal fatigue energy limit, by induction coil heated engine inboard wall of cylinder cover, the accurate analog temperature field of sensing heating, while quickly can locally be heated, the energy is also saved without integrally being heated to engine cylinder cover and cylinder body, while better reliability；Realized and automatically controlled by computer, it is convenient, fast and accurate.
Description
Technical field
The present invention relates to engine cylinder cover the accelerated thermal fatigue technology, for detecting engine cylinder cover thermal fatigue energy limit,
Specifically engine cylinder cover thermal fatigue test apparatus.
Background technology
Engine cylinder cover heat fatigue includes low-cycle thermal fatigue and high all heat fatigues：Low-cycle thermal fatigue is due to engine operating condition
（Load and rotating speed）Caused by being widely varied, such as starting-stopping cycle of engine, it is characterized in that temperature and thermal stress become
Change amplitude is big, and cycle life is low, and it is to cause the engine cylinder cover ridge area fatigue crack to be worked under high temperature, high load capacity most
Principal element；High all heat fatigues refer in engine high frequency temperature and thermal stress（With engine operating frequencies with frequency）Effect is lower to produce
Raw fatigue, high cycles fatigue are general not individually to consider because temperature and corresponding thermal stress change amplitude are small.
The central factor for influenceing cylinder cap ridge area thermal fatigue fracture is low circulation heat fatigue.
To improve cutting ability, material hardness is reduced, reducing the thermal fatigue property of hardness back cylinder cover needs to verify.
Now domestic thermal fatigue test technology is mostly：First, high-frequency induction heating, but import test-bed is used, to whole cylinder
Lid is heated, and speed is slow, and control system is simple；2nd, heated using flame, firing rate equally is carried out to whole cylinder cap
Slowly, and in heating need to waste the too many energy, and cylinder cap entirety also can be impacted.
The content of the invention
Present invention exploitation cylinder cap the accelerated thermal fatigue technology, using sensing heating, simulation cylinder head heating temperature field is so as to detecting
Cylinder cap thermal fatigue energy limit, spy propose engine cylinder cover thermal fatigue test apparatus.
For this technical scheme is that, engine cylinder cover thermal fatigue test apparatus, including engine cylinder cover, engine
Cylinder cap is connected with cylinder body, and is placed on stand slide unit, it is characterised in that：Engine cylinder cover is connected with radiating by pipeline
Device, water temperature heating control device；Cylinder body is connected with flowmeter by pipeline, water pump is finally coupled to water temperature heating control device；
The pipeline between pipeline and flowmeter and water pump wherein outside engine cylinder cover is connected with pipeline, and is provided with and divides on the pipeline
Flow valve；
Heated in engine cylinder cover by induction coil, induction coil is connected to electrical power control cabinet, and electrical power control cabinet is also associated with
Voltage-stabilized power supply, realize and automatically control finally by computer settings.
Further improve is：Induction coil forms the setting of three rounds from the inside to the outside, and the spacing of induction coil is 10mm.
Further improve is：Temperature survey dress is additionally provided with the pipeline outside pipeline and cylinder body outside engine cylinder cover
Put and device for pressure measurement.
Further improve is：Water temperature heating control device is also associated with priming apparatus and drainage arrangement.
Further improve is：Radiator is externally connected with external circulation line.
Beneficial effect：
Present invention exploitation engine cylinder cover the accelerated thermal fatigue technology, for detecting cylinder cap thermal fatigue energy limit, passes through the line of induction
Heated engine inboard wall of cylinder cover is enclosed, simulates actual state, the accurate analog temperature field of sensing heating, while quickly can locally carry out
Heating, the energy is also saved without integrally being heated to engine cylinder cover and cylinder body, while better reliability；
The accelerated thermal fatigue experiment comparability judges the thermal fatigue energy limit and reliability of engine cylinder sheet product, can be in material
Material and process exploitation stage part substitute engine thermal impact test, and develop universal thermal fatigue test apparatus, pass through meter
Calculation machine is realized and automatically controlled, convenient, fast and accurate.
Induction coil forms the setting of three rounds from the inside to the outside, each in order to quickly be heated to engine cylinder cover inwall
The heat time of individual cylinder cap can foreshorten to 6s.
Temperature measuring equipment and device for pressure measurement are used for the temperature value for perceiving actual state and pressure value and simulate reality
Work condition inspection, accomplish data accurately and reliably.
Brief description of the drawings
Fig. 1 is the operating mode schematic diagram that the present invention creates.
Fig. 2 is the front view of induction coil.
1 is engine cylinder cover in figure, and 2 be cylinder body, and 3 be electrical power control cabinet, and 4 be voltage-stabilized power supply, and 5 be induction coil, and 6 be pipe
Road, 7 be flowmeter, and 8 be flow divider, and 9 be water temperature heating control device, and 10 be radiator, and 11 be water pump, and 12 be priming apparatus,
13 be drainage arrangement, and 14 be external circulation line, and 15 be temperature measuring equipment, and 16 be device for pressure measurement.
Embodiment
The present invention is as shown in Fig. 1/2.
Engine cylinder cover thermal fatigue test apparatus, including engine cylinder cover 1, engine cylinder cover 1 are connected with cylinder body 2, and
It is placed on stand slide unit, engine cylinder cover 1 is connected with radiator 10, water temperature heating control device 9 by pipeline 6；Cylinder body 2 is logical
Cross that pipeline 6 is connected with flowmeter 7, water pump 11 is finally coupled to water temperature heating control device 9；Wherein outside engine cylinder cover 1
The connecting line of pipeline 6 between pipeline 6 and flowmeter 7 and water pump 11, and flow divider 8 is provided with the pipeline 6；
Heated in engine cylinder cover 1 by induction coil 5, induction coil 5 is connected to electrical power control cabinet 3, and electrical power control cabinet 3 also connects
Voltage-stabilized power supply 4 is connected to, realizes and automatically controls finally by computer settings.
Induction coil 5 forms the setting of three rounds from the inside to the outside, and the spacing of induction coil 5 is 10mm.
Temperature measuring equipment 15 is additionally provided with the pipeline 6 outside pipeline 6 and cylinder body 2 outside engine cylinder cover 1 and pressure is surveyed
Measure device 16.
Water temperature heating control device 9 is also associated with priming apparatus 12 and drainage arrangement 13.
Radiator 10 is externally connected with external circulation line 14.
During use
1st, temperature field is created and engine cylinder cover 1 and cylinder body 2 is placed on stand slide unit, connect engine cylinder cover 1 and cylinder body 2
Cooling water connector, the constant-temperature cooling system of engine cylinder cover 1 and cylinder body 2 is opened, check water leakage situation and give and deal carefully with；
2nd, adjustment makes induction coil 5 be docked with the heating power face of engine cylinder cover 1, induction coil 5 is matched somebody with somebody with the heating power face of engine cylinder cover 1
Close gap to fix in 3.5mm, and engine cylinder cover 1 and cylinder body 2 are fastened on stand slide unit；
3rd, water temperature heating control device 9 is started, when coolant-temperature gage is stabilized to 45 ± 3 DEG C, power-on switch board 3, firing test
Equipment；
4th, first adjustment setting cooling parameter, rear adjustment setting heating parameters, pilot system parameter is set by an independent loops.
Claims (5)
1. engine cylinder cover thermal fatigue test apparatus, including engine cylinder cover, engine cylinder cover are connected with cylinder body, and are placed in
On stand slide unit, it is characterised in that：Engine cylinder cover is connected with radiator, water temperature heating control device by pipeline；Cylinder body leads to
Cross that pipeline is connected with flowmeter, water pump is finally coupled to water temperature heating control device；Pipeline wherein outside engine cylinder cover with
Pipeline between flowmeter and water pump is connected with pipeline, and flow divider is provided with the pipeline；
Heated in engine cylinder cover by induction coil, induction coil is connected to electrical power control cabinet, and electrical power control cabinet is also associated with
Voltage-stabilized power supply, realize and automatically control finally by computer settings.
2. engine cylinder cover thermal fatigue test apparatus according to claim 1, it is characterised in that：Induction coil is from the inside to the outside
The setting of three rounds is formed, the spacing of induction coil is 10mm.
3. engine cylinder cover thermal fatigue test apparatus according to claim 1, it is characterised in that：In the pipe of engine cylinder cover
Temperature measuring equipment and device for pressure measurement are additionally provided with pipeline outside road and cylinder body.
4. engine cylinder cover thermal fatigue test apparatus according to claim 1, it is characterised in that：Water temperature heating control device
It is also associated with priming apparatus and drainage arrangement.
5. engine cylinder cover thermal fatigue test apparatus according to claim 1, it is characterised in that：Radiator is externally connected with outer
Circulation line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711115925.0A CN107741326A (en) | 2017-11-13 | 2017-11-13 | Engine cylinder cover thermal fatigue test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711115925.0A CN107741326A (en) | 2017-11-13 | 2017-11-13 | Engine cylinder cover thermal fatigue test apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107741326A true CN107741326A (en) | 2018-02-27 |
Family
ID=61233267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711115925.0A Withdrawn CN107741326A (en) | 2017-11-13 | 2017-11-13 | Engine cylinder cover thermal fatigue test apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107741326A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112213225A (en) * | 2020-09-21 | 2021-01-12 | 东风商用车有限公司 | Cold and hot fatigue test method and device for engine cylinder head assembly |
| CN112985794A (en) * | 2021-02-22 | 2021-06-18 | 东风商用车有限公司 | Thermal fatigue test device and method for single engine cylinder cover |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202693437U (en) * | 2012-06-19 | 2013-01-23 | 浙江大学 | Cylinder cover heat shock test bed with pre-tightening force being considered |
| 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 |
| CN207336080U (en) * | 2017-11-13 | 2018-05-08 | 十堰深思科技有限公司 | Engine cylinder cover thermal fatigue test apparatus |
-
2017
- 2017-11-13 CN CN201711115925.0A patent/CN107741326A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202693437U (en) * | 2012-06-19 | 2013-01-23 | 浙江大学 | Cylinder cover heat shock test bed with pre-tightening force being considered |
| 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 |
| CN207336080U (en) * | 2017-11-13 | 2018-05-08 | 十堰深思科技有限公司 | Engine cylinder cover thermal fatigue test apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112213225A (en) * | 2020-09-21 | 2021-01-12 | 东风商用车有限公司 | Cold and hot fatigue test method and device for engine cylinder head assembly |
| CN112985794A (en) * | 2021-02-22 | 2021-06-18 | 东风商用车有限公司 | Thermal fatigue test device and method for single engine cylinder cover |
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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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180227 |
|
| WW01 | Invention patent application withdrawn after publication |