CN107525599A - For the measurement apparatus and method measured to the dynamic temperature of engine piston - Google Patents
For the measurement apparatus and method measured to the dynamic temperature of engine piston Download PDFInfo
- Publication number
- CN107525599A CN107525599A CN201710640056.7A CN201710640056A CN107525599A CN 107525599 A CN107525599 A CN 107525599A CN 201710640056 A CN201710640056 A CN 201710640056A CN 107525599 A CN107525599 A CN 107525599A
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- lead
- dynamic
- piston
- support
- temperature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- 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
- G01M15/02—Details or accessories of testing apparatus
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Engines (AREA)
Abstract
The present invention relates to a kind of measurement apparatus and method for being used to measure the dynamic temperature of engine piston, the measurement apparatus includes：The temperature element being arranged on piston to be measured；The temperature measuring equipment electrically connected with temperature element；The lead of temperature measuring equipment is led to from temperature element；It is fixedly attached to the dynamic support of engine link；The quiet support of the opening position for the close oil dipstick tube being arranged in oil sump；The linkage of lead two, the linkage of lead two includes lead upper connecting rod and lead lower link, the upper end of lead upper connecting rod is pivotally connected to dynamic support, and the lower end and the upper end of lead lower link of lead upper connecting rod are pivotally connected, and the lower end of lead lower link is pivotally connected to quiet support.Wherein, piston to be measured is formed with the fairlead for passing through lead, lead passes from the fairlead of piston to be measured, and is attached to the inner chamber wall, engine link, dynamic support, the linkage of lead two and quiet support of piston to be measured successively, and is passed by oil dipstick tube and be connected to temperature measuring equipment.
Description
Technical field
The present invention relates to technical field of engines, is filled more particularly to a kind of dynamic temperature measurement for engine piston
The method put and dynamic temperature measurement is carried out to engine piston.
Background technology
At present, the test to piston temperature generally has two ways：One kind is to use hardness plug thermometric, and it can not be to piston
Temperature monitors in real time, can only know the maximum temperature during pistons work, and can not ensure measuring accuracy；Another kind is wireless
Telemetry, it is higher to engine interior space requirement, and sample frequency is low, expensive.
Wired detection piston dynamic temperature can realize the real-time monitoring of piston temperature data, and carry out on-line analysis, no
The problems such as data outage can be caused.At present, the biggest problem of wired detection piston dynamic temperature is the lead arrangement of sensor,
Very high to lead arrangement requirement because the parts such as connecting rod do high-speed motion in engine, the slightly problem of arrangement is possible to
Signal wire is caused to stir the problems such as disconnected.
The content of the invention
The purpose of the present invention is that at least solve one of the above-mentioned problems of the prior art, and the purpose is by following technology
What scheme was realized：
The present invention relates to a kind of measurement apparatus for being used to measure the dynamic temperature of engine piston, the measurement dress
Put including：
The temperature element being arranged on piston to be measured；
The temperature measuring equipment electrically connected with the temperature element；
The lead of the temperature measuring equipment is led to from the temperature element；
It is fixedly attached to the dynamic support of engine link；
The quiet support of the opening position for the close oil dipstick tube being arranged in oil sump；
The linkage of lead two, the linkage of lead two include lead upper connecting rod and lead lower link, the lead
The upper end of upper connecting rod is pivotally connected to the dynamic support, the lower end of the lead upper connecting rod and the upper end pivot of the lead lower link
Turn connection, the lower end of the lead lower link is pivotally connected to the quiet support；
Wherein, the piston to be measured is formed with the fairlead for passing through the lead, and the lead is from described to be measured
Passed in the fairlead of piston, and be attached to the inner chamber wall of the piston to be measured, engine link, described successively
Dynamic support, the linkage of the lead two and the quiet support, and passed by the oil dipstick tube and be connected to the thermometric and set
It is standby.
Further, the quiet support is fixedly attached to main beating cap or oil sump.
Further, the lead upper connecting rod support by the engine link it is existing be bolted to it is described
Engine link.
Preferably, the quiet support is bolted to the main beating cap by existing in the main beating cap.
It is further preferred that the lead is equipped with tetrafluoroethene flexible pipe.
Preferably, the temperature element is thermocouple, also, the lead is thermocouple wire.
In addition, the invention further relates to a kind of measuring method for being used to measure the dynamic temperature of engine piston, institute
Stating measuring method includes：
Dynamic support is set in the lower end of engine link；
The opening position of close oil dipstick tube in oil sump sets quiet support；
Setting includes lead upper connecting rod between the dynamic support and the quiet support and the lead two of lead lower link connects
Linkage so that the upper end of the lead upper connecting rod is pivotally connected to the dynamic support, the lower end of the lead upper connecting rod and institute
The upper end for stating lead lower link is pivotally connected, and the lower end of the lead lower link is pivotally connected to the quiet support；
Fairlead is processed in piston to be measured and carries out corresponding point layout；
Temperature element is arranged on the piston to be measured and is attached to the lead drawn from the temperature element successively
Inner chamber wall, the engine link, the dynamic support, the linkage of the lead two and the quiet branch of the piston to be measured
Frame, and passed by the oil dipstick tube and be connected to the temperature measuring equipment；
Temperature survey is carried out to the piston to be measured of dynamic operation.
Preferably, the lead upper connecting rod support is connected to by the hair by existing bolt on the engine link
Motivation connecting rod.
Further, the quiet support is connected to by the main beating cap by existing bolt in main beating cap.
It is further preferred that the lead drawn from the temperature element is attached successively by stickup and/or band binding
To the inner chamber wall of the piston to be measured, the engine link, the dynamic support, the linkage of the lead two and described quiet
Support.
The advantage of the invention is that：The dynamic thermometer for engine piston of the present invention is simple in construction, makes
It is easy to operate with convenience；The temperature data in piston dynamic operation can be gathered in real time；Sample frequency is high, and measuring accuracy is high；Without right
Engine does larger change, and a set of easy device need to be only added in oil sump and solves the difficulty that the wire of wired thermometric is drawn
Topic, a set of reliable and economical and practical device is provided for piston dynamic temperature measurement.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 is shown to be shown according to the arrangement of the dynamic thermometer for engine piston of embodiment of the present invention
It is intended to；
Fig. 2 is partly shown according to the dynamic thermometer for engine piston of embodiment of the present invention
The connection diagram of two linkages and dynamic support and quiet support.
Embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although this public affairs is shown in accompanying drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.Conversely, there is provided these embodiments are to be able to be best understood from the disclosure, and can be by this public affairs
The scope opened completely is communicated to those skilled in the art.
According to the embodiment of the present invention, as shown in figure 1, proposing that a kind of dynamic temperature measurement for engine piston fills
Put, the dynamic thermometer includes：Thermoelectricity occasionally temperature sensor 1 and the electricity of thermocouple 1 being arranged on piston 2 to be measured
The temperature measuring equipment (not shown) of connection, from thermocouple 1 thermocouple wire of temperature measuring equipment is led to (in Fig. 1 with the solid line of overstriking
Show), be fixedly attached to the dynamic support 4 of engine link 3, the close oil dipstick tube 6 being arranged in oil sump 9 opening position it is quiet
Support 8 and the linkage 5,7 of lead two.Wherein, the linkage of lead two includes lead upper connecting rod 5 and lead lower link 7, draws
The upper end of line upper connecting rod 5 is pivotally connected to the lower end of dynamic support 4, and the lower end of lead lower link 7 is pivotally connected to quiet support 8, and
And the lower end of lead upper connecting rod 5 and the upper end of lead lower link 7 are pivotally connected.According to a preferred embodiment of the invention, move
Support 4 is connected to engine link 3 by existing connecting-rod bolts on engine link 3 and corresponding screwed hole, from without
Extra drilling is carried out to engine link 3 and increase bolt.Have it is also preferable that quiet support 8 passes through in main beating cap
Main bearing bolt be connected to main beating cap, without carrying out extra drilling in main beating cap and increasing bolt；Or
Alternatively, quiet support 8 can also be connected directly to oil sump 9 in the opening position close to oil dipstick tube 6.Pass through the lead two of the present invention
Linkage, can be by thermocouple wire from can be guided with the engine link 3 that piston 2 to be measured moves to quiet support 8, so as to real
Transition connection of the thermocouple wire from moving component to stationary parts is showed.Specifically, lead upper connecting rod 5 by with engine link
3 are pivotally connected and are driven by engine link 3 and be pivoted motion relative to engine link 3, and then drive lead
Lower link 7 is pivoted motion relative to lead upper connecting rod 5, and lead lower link 7 with quiet support 8 by being pivotally connected and relative
Pivoted in quiet support 8, but the pivot of the bottom of lead lower link 7 is fixedly attached to quiet support 8 all the time.Wherein, piston 2 to be measured adds
Work (such as passing through drilling) has the fairlead for passing through thermocouple wire, and thermocouple wire is worn from the fairlead of piston 2 to be measured
Go out, and successively attachment (preferably paste and band binding be combined by way of) to piston 2 to be measured inner chamber wall, start
Machine connecting rod 3, dynamic support 4, the linkage of lead two and quiet support 8, and passed by oil dipstick tube 6 and be connected to temperature measuring equipment.It is excellent
Selection of land, thermocouple wire is integrally equipped with the flexible pipe made of high tenacity, high-temperature resistant polytetrafluoroethylmelt (PTFE), so as to improve signal
The reliability of transmission.
The dynamic thermometer for engine piston of the present invention is tested available for piston dynamic temperature measurement.Specifically
Ground, thermocouple 1 is arranged on piston 2 to be measured before testing, in subsequent assembling process, thermocouple wire is pasted onto piston
Inner chamber, engine link 3, dynamic support 4, the linkage of lead two and quiet support 8, and then drawn thermocouple wire by oil dipstick tube 6
Go out and be connected to test equipment, carry out corresponding piston dynamic temperature measurement experiment.
In addition, the invention further relates to a kind of method for being used to carry out engine piston dynamic temperature measurement, this method bag
Include：
Dynamic support 4 is set in the lower end of engine link 3, such as dynamic support 4 is connected to by engine link 3 by bolt
Lower end；
The opening position of close oil dipstick tube 6 in oil sump 9 sets quiet support 8, such as the close dipstick in oil sump 9
Quiet support 8 is connected to main beating cap by Main bearing bolt or is connected directly to oil sump 9 by bolt by the opening position of pipe 6
Inwall；
Include the connecting rod machine of lead two of lead upper connecting rod 5 and lead lower link 7 in dynamic setting between support 4 and quiet support 8
Structure so that the upper end of lead upper connecting rod 5 is pivotally connected to dynamic support 4, and the lower end of lead lower link 7 is pivotally connected to quiet support 8,
And the lower end of lead upper connecting rod 5 and the upper end of lead lower link 7 are pivotally connected；
Fairlead is processed in piston 2 to be measured and carries out corresponding point layout；
Thermocouple 1 is arranged on piston 2 to be measured and the thermocouple wire drawn from thermocouple 1 is attached to work to be measured successively
Inner chamber wall, engine link 3, dynamic support 4, the linkage of lead two and the quiet support 8 of plug 2, and passed simultaneously by oil dipstick tube 6
It is connected to temperature measuring equipment；
Temperature survey is carried out to the piston to be measured 2 of dynamic operation.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Enclose and be defined.
Claims (10)
- A kind of 1. measurement apparatus for being used to measure the dynamic temperature of engine piston, it is characterised in that the measurement dress Put including：The temperature element being arranged on piston to be measured；The temperature measuring equipment electrically connected with the temperature element；The lead of the temperature measuring equipment is led to from the temperature element；It is fixedly attached to the dynamic support of engine link；The quiet support of the opening position for the close oil dipstick tube being arranged in oil sump；The linkage of lead two, the linkage of lead two include lead upper connecting rod and lead lower link, connected on the lead The upper end of bar is pivotally connected to the dynamic support, and the lower end of the lead upper connecting rod and the upper end of the lead lower link pivot company Connect, the lower end of the lead lower link is pivotally connected to the quiet support；Wherein, the piston to be measured is formed with the fairlead for passing through the lead, and the lead is from the piston to be measured The fairlead in pass, and be attached to the inner chamber wall, the engine link, the dynamic branch of the piston to be measured successively Frame, the linkage of the lead two and the quiet support, and passed by the oil dipstick tube and be connected to the temperature measuring equipment.
- 2. measurement apparatus according to claim 1, it is characterised in that the quiet support be fixedly attached to main beating cap or Oil sump.
- 3. dynamic thermometer according to claim 1, it is characterised in that the lead upper connecting rod support passes through institute State and existing on engine link be bolted to the engine link.
- 4. dynamic thermometer according to claim 2, it is characterised in that the quiet support passes through the base bearing Cover and existing be bolted to the main beating cap.
- 5. dynamic thermometer according to claim 1, it is characterised in that it is soft that the lead is equipped with tetrafluoroethene Pipe.
- 6. dynamic thermometer according to any one of claim 1 to 5, it is characterised in that the temperature element For thermocouple, also, the lead is thermocouple wire.
- A kind of 7. measuring method for being used to measure the dynamic temperature of engine piston, it is characterised in that the measurement side Method includes：Dynamic support is set in the lower end of engine link；The opening position of close oil dipstick tube in oil sump sets quiet support；Being set between the dynamic support and the quiet support includes the connecting rod machine of lead two of lead upper connecting rod and lead lower link Structure so that the upper end of the lead upper connecting rod is pivotally connected to the dynamic support, and the lower end of the lead upper connecting rod is drawn with described The upper end of line lower link is pivotally connected, and the lower end of the lead lower link is pivotally connected to the quiet support；Fairlead is processed in piston to be measured and carries out corresponding point layout；Temperature element is arranged on the piston to be measured and is attached to the lead drawn from the temperature element successively described Inner chamber wall, the engine link, the dynamic support, the linkage of the lead two and the quiet support of piston to be measured, And passed by the oil dipstick tube and be connected to the temperature measuring equipment；Temperature survey is carried out to the piston to be measured of dynamic operation.
- 8. measuring method according to claim 7, it is characterised in that will by existing bolt on the engine link The lead upper connecting rod support is connected to the engine link.
- 9. the method according to claim 7 that dynamic temperature measurement is carried out to engine piston, it is characterised in that pass through master The quiet support is connected to the main beating cap by existing bolt on bearing cap.
- 10. the method according to claim 7 that dynamic temperature measurement is carried out to engine piston, it is characterised in that pass through Paste and/or band binding by the lead drawn from the temperature element be attached to successively the piston to be measured inner chamber wall, The engine link, the dynamic support, the linkage of the lead two and the quiet support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710640056.7A CN107525599B (en) | 2017-07-31 | 2017-07-31 | Measuring device and method for measuring dynamic temperature of engine piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710640056.7A CN107525599B (en) | 2017-07-31 | 2017-07-31 | Measuring device and method for measuring dynamic temperature of engine piston |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107525599A true CN107525599A (en) | 2017-12-29 |
| CN107525599B CN107525599B (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710640056.7A Active CN107525599B (en) | 2017-07-31 | 2017-07-31 | Measuring device and method for measuring dynamic temperature of engine piston |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872057A (en) * | 2017-01-06 | 2017-06-20 | 中国第汽车股份有限公司 | The derivation mechanism of measurement signal in a kind of engine cylinder |
| CN108375427A (en) * | 2018-01-23 | 2018-08-07 | 武汉理工大学 | Engine piston temperature field telemetry system Calibrating experimental bench |
| CN110006643A (en) * | 2019-04-18 | 2019-07-12 | 哈尔滨工程大学 | Internal-combustion engine piston ring group axial displacement and torsional angle measuring device |
| CN110926819A (en) * | 2019-12-05 | 2020-03-27 | 中国航发四川燃气涡轮研究院 | Rotor inner cavity flow characteristic test structure |
| 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 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872057A (en) * | 2017-01-06 | 2017-06-20 | 中国第汽车股份有限公司 | The derivation mechanism of measurement signal in a kind of engine cylinder |
| CN106872057B (en) * | 2017-01-06 | 2020-03-17 | 中国第一汽车股份有限公司 | Leading-out mechanism for measuring signal in engine cylinder |
| CN108375427A (en) * | 2018-01-23 | 2018-08-07 | 武汉理工大学 | Engine piston temperature field telemetry system Calibrating experimental bench |
| CN110006643A (en) * | 2019-04-18 | 2019-07-12 | 哈尔滨工程大学 | Internal-combustion engine piston ring group axial displacement and torsional angle measuring device |
| CN110926819A (en) * | 2019-12-05 | 2020-03-27 | 中国航发四川燃气涡轮研究院 | Rotor inner cavity flow characteristic test structure |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN107525599B (en) | 2020-01-03 |
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