CN106595893A - Piston dynamic temperature measurement test device - Google Patents
Piston dynamic temperature measurement test device Download PDFInfo
- Publication number
- CN106595893A CN106595893A CN201611180108.9A CN201611180108A CN106595893A CN 106595893 A CN106595893 A CN 106595893A CN 201611180108 A CN201611180108 A CN 201611180108A CN 106595893 A CN106595893 A CN 106595893A
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- Prior art keywords
- piston
- holding wire
- assay device
- thermometric
- connecting rod
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Engines (AREA)
Abstract
The present invention belongs to the engine temperature measurement technical field and discloses a piston dynamic temperature measurement test device. The piston dynamic temperature measurement test device is used for detecting the temperature of a piston in the cylinder of an engine, wherein the engine comprises a piston, a piston rod and a crankshaft, wherein one end of the piston rod is connected with the crankshaft, and the other end of the piston rod is connected with the piston. The piston dynamic temperature measurement test device is characterized in that the piston dynamic temperature measurement test device includes a probe, a signal line and a crank slider mechanism; the probe is arranged on the piston of the cylinder; the crank slider mechanism includes a slider, a slide rail and a connecting rod; one end of the connecting rod is hinged to the slider; the other end of the connecting rod is hinged to the crankshaft of the cylinder; the slider is slidingly arranged on the slide rail; one end of the signal line is connected with the probe; the other end of the signal line is connected with a data acquisition device; and the signal line is arranged along the piston, the piston rod, the connection rod and the slider. With the piston dynamic temperature measurement test device provided by the invention adopted, the fracture of the signal line caused by stirring can be effectively avoided, and the real-time acquisition of temperature data in the dynamic operation of the piston is realized.
Description
Technical field
The present invention relates to electromotor thermometry field, more particularly to a kind of piston dynamic temperature measurement assay device.
Background technology
Engine piston work under bad environment, bears for a long time the effect of high temperature and high pressure gas, if temperature is too high, easily
Cause the failures such as the molten top of piston, perforation, cause electromotor cannot normal work, the reliability of piston for electromotor work extremely
Close important.
Mainly there are three kinds of modes to the thermometric of piston temperature in the market：The first is to adopt hardness plug temp measuring method,
This method cannot carry out monitor in real time to piston temperature, the maximum temperature that can only reflect during pistons work, and thermometric essence
Degree cannot ensure；Second is wireless telemetering method, and the method thermometric is harsh to engine interior space requirement, sample frequency
It is low, and battery cannot power for a long time, be unfavorable for long-time monitoring piston temperature；The third is wired piston dynamic temperature measurement side
Method, the method can realize the monitor in real time of piston temperature data, and can carry out reproduction analysis, be not in that data interruption etc. is asked
Topic, but at present the biggest problem of wired piston dynamic temperature measurement method is the holding wire arrangement of sensor.Due to piston rod
High-speed motion is done in engine interior Deng parts, it is higher to holding wire arrangement requirement, it is careless slightly to may result in holding wire and stir
Disconnected the problems such as.
The content of the invention
(1) technical problem to be solved
It is an object of the present invention to provide a kind of simple structure, holding wire can be prevented effectively from stirring disconnected piston dynamic and survey
Warm assay device.
(2) technical scheme
In order to solve above-mentioned technical problem, the present invention provides a kind of piston dynamic temperature measurement assay device, starts for detection
The temperature of machine cylinder inner carrier, wherein, electromotor includes piston, piston rod and bent axle, and one end and the bent axle of the piston rod connect
Connect, the other end is connected with piston；Wherein, including probe, holding wire and slider-crank mechanism, the probe is located at the cylinder
On piston, the slider-crank mechanism includes slide block, slide rail and connecting rod, and one end of the connecting rod is hinged with the slide block, the company
The other end of bar is hinged with the bent axle of the cylinder, and the slide block slides in slide rail, one end of the holding wire with it is described
Probe connection, the other end of the holding wire is used to be connected with data acquisition unit, wherein, edge is moved towards in the wiring of the holding wire
Piston, piston rod, connecting rod and slide block arrangement.
Wherein, the other end of the connecting rod is hinged with the crank of the bent axle.
Wherein, the slide rail is on the crankcase of the electromotor.
Wherein, the slide rail is arranged on the bottom surface of the lower crankcase of the crankcase, and the slide block is in the fortune of slide rail
Dynamic direction is located on straight line with the direction of motion of the piston.
Wherein, hole is provided with the wall of the lower crankcase, holding wire is along the bottom surface of the lower crankcase, lower bent axle
The wall of case is simultaneously drawn through the hole.
Wherein, holding wire is by being pasted and fixed on the bottom surface and wall of lower crankcase.
Wherein, the outside of holding wire is provided with polyfluortetraethylene pipe.
Wherein, holding wire is sequentially fixed on piston rod, connecting rod, slide block by stickup
Wherein, the probe is thermocouple.
Wherein, also include being located at the data acquisition unit that external engine is connected with holding wire.
(3) beneficial effect
The piston dynamic temperature measurement assay device that the present invention is provided is connected by the toggle in electromotor and with crank
The arrangement of the enterprising row signal line of slider-crank mechanism of the bent axle connection of linkage, so as to realize that the piston to dynamic operation is carried out
Thermometric.The apparatus structure is simple, can be prevented effectively from holding wire and stir disconnected, realizes the temperature number in Real-time Collection piston dynamic operation
According to.Additionally, the device is easy to use, easy to operate, sample frequency is high, and temperature measurement accuracy is high and electromotor need not be changed.
Description of the drawings
Fig. 1 is the structural representation that holding wire is not provided with according to a kind of piston dynamic temperature measurement assay device of the present invention；With
And
Fig. 2 is the structural representation that the piston dynamic temperature measurement assay device in Fig. 1 is provided with holding wire.
In figure, 1：Piston；2：Cylinder sleeve；3：Lower crankcase；4：Slide rail；5：Holding wire；6：Slide block；7：Connecting rod；8：Piston rod.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is described in further detail.Following instance
For illustrating the present invention, but it is not limited to the scope of the present invention.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Figures 1 and 2 show that a kind of structural representation of piston dynamic temperature measurement assay device of the invention.Such as Fig. 1
With shown in Fig. 2, electromotor includes piston 2, piston rod 8 and bent axle, and one end of piston rod 8 is connected with bent axle, the other end and piston 2
Connection；The temperature of piston 1 of the piston dynamic temperature measurement assay device including popping one's head in (such as thermocouple), for probe to be measured is passed
The defeated holding wire and slider-crank mechanism that data analysiss are carried out to temperature measuring equipment, probe is located on the piston 2 of cylinder, specifically,
Positioned at the top of combustor inner carrier 2, the slider-crank mechanism include slide block 6, slide rail 4 and connecting rod 7, one end of the connecting rod 7 with
Slide block 6 is hinged, and the other end of connecting rod 7 is hinged with the bent axle of cylinder, in this embodiment, the other end of connecting rod 7 and the song of cylinder
Crank on axle is hinged.Slide block 6 slides in slide rail 4, and one end of holding wire 5 is connected with probe, and the other end of holding wire 5 is used
In being connected with data acquisition unit, wherein, the wiring trend of holding wire is arranged along piston 2, piston rod 8, connecting rod 7 and slide block 6.
Wherein, data acquisition unit be able to can also be located on slide block 6 outside automobile engine.
The piston dynamic temperature measurement assay device that the present invention is provided is connected by the toggle in electromotor and with crank
The arrangement of the enterprising row signal line of slider-crank mechanism of the bent axle connection of linkage, and be drawn out on temperature measuring equipment, so as to realize
Thermometric is carried out to the piston 1 of dynamic operation.The apparatus structure is simple, can be prevented effectively from holding wire and stir disconnected, realizes Real-time Collection
Temperature data in the dynamic operation of piston 1.
Specifically, be slider-crank mechanism slide block 6 be oriented to slide rail 4 be arranged on crankcase lower crankcase 3 bottom surface
On, and slide block 6 is located on straight line in the direction of motion of the direction of motion and the piston 1 of slide rail 4.So in lower crankcase 3
Machine oil can be lubricated to slide rail 4.In order to prevent holding wire 5 from interrupting, the holding wire 5 between slide block 6 and lower crankcase 3
Length of the length more than or equal to the stroke of slide block 6.
In this embodiment, although show and be provided with slide rail 4 on 3 on the bottom surface of lower crankcase, the crank block machine
The slide block 6 of structure slides in slide rail 4, and slide block 6 is located at straight line in the direction of motion of slide rail 4 with the direction of motion of piston 1
On.However, it will be understood by those of skill in the art that the direction of slide rail 4 can also be not straight at one with the direction of motion of piston 1
On line, i.e., slide rail 4 can also be arranged on the wall of lower crankcase 3 on the either wall of the upper crankcase of crankcase or other
Position, only need to ensure that slide block 6 can slide in slide rail 4, and not affect motion of the piston 1 in cylinder sleeve 2.
Preferably, holding wire 5 is overall is protected using high tenacity, high-temperature resistant polytetrafluoroethylmelt (PTFE) flexible pipe, in case
There is integrity problem in stop signal line.
In this embodiment, hole is provided with the side of piston 1, holding wire 5 is through the hole arrangement on the side of piston 1.
Holding wire 5 is respectively by being pasted and fixed on piston rod 8, connecting rod 7, slide block 6.Additionally, holding wire 5 is by being pasted and fixed on lower song
On the bottom surface and wall of axle box 3.Hole is provided with the wall of lower crankcase 3, holding wire 5 is along the bottom surface of lower crankcase 3, lower song
The wall of axle box 3 is simultaneously drawn through the hole.
Further, the piston dynamic temperature measurement assay device also includes being located at the data that external engine is connected with holding wire
Harvester.
During installation, punched in piston 1 first, carried out corresponding point layout, by Probe arrangement in corresponding measuring point
Position, is then pasted onto the holding wire 5 being connected with probe Jing after thermal insulation protection on piston 1, piston rod 8, connecting rod 7, slide block 6,
Follow-up holding wire 5 is pasted onto lower bent axle by the reserved length more than or equal to the stroke of slide block 6 of the holding wire 5 of the bottom of slide block 6, continuation
On the bottom surface of case 3, wall, and then by way of in the punching of the wall of lower crankcase 3, holding wire 5 is drawn and is connected to temperature measuring equipment,
To carry out corresponding piston dynamic temperature measurement test.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. a kind of piston dynamic temperature measurement assay device, for detecting the temperature of engine cylinder inner carrier, wherein, electromotor includes
Piston, piston rod and bent axle, one end of the piston rod is connected with bent axle, and the other end is connected with piston；Characterized in that, including
Probe, holding wire and slider-crank mechanism, on the piston of the cylinder, the slider-crank mechanism includes sliding the probe
Block, slide rail and connecting rod, one end of the connecting rod is hinged with the slide block, and the other end of the connecting rod cuts with scissors with the bent axle of the cylinder
Connect, the slide block slides in slide rail, one end of the holding wire is connected with the probe, the other end of the holding wire is used
In being connected with data acquisition unit, wherein, the wiring trend of the holding wire is along piston, piston rod, connecting rod and slide block arrangement.
2. thermometric assay device as claimed in claim 1, it is characterised in that the song of the other end of the connecting rod and the bent axle
Handle is hinged.
3. thermometric assay device as claimed in claim 1, it is characterised in that crankcase of the slide rail located at the electromotor
On.
4. thermometric assay device as claimed in claim 3, it is characterised in that the slide rail is arranged on the lower song of the crankcase
On the bottom surface of axle box, and the slide block is located on straight line in the direction of motion of slide rail with the direction of motion of the piston.
5. thermometric assay device as claimed in claim 4, it is characterised in that be provided with the wall of the lower crankcase
Hole, holding wire along the bottom surface of the lower crankcase, the wall of lower crankcase and through the hole draw.
6. thermometric assay device as claimed in claim 5, it is characterised in that holding wire is by being pasted and fixed on lower crankcase
On bottom surface and wall.
7. thermometric assay device as claimed in claim 1, it is characterised in that the outside of holding wire is provided with politef
Pipe.
8. the thermometric assay device as any one of claim 1-7, it is characterised in that holding wire is solid successively by pasting
It is scheduled on piston rod, connecting rod, slide block.
9. the thermometric assay device as any one of claim 1-7, it is characterised in that the probe is thermocouple.
10. the thermometric assay device as any one of claim 1-7, it is characterised in that also include being located at outside electromotor
The data acquisition unit that portion is connected with holding wire..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611180108.9A CN106595893B (en) | 2016-12-19 | 2016-12-19 | Piston dynamic temperature measurement experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611180108.9A CN106595893B (en) | 2016-12-19 | 2016-12-19 | Piston dynamic temperature measurement experimental rig |
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| Publication Number | Publication Date |
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| CN106595893A true CN106595893A (en) | 2017-04-26 |
| CN106595893B CN106595893B (en) | 2019-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611180108.9A Active CN106595893B (en) | 2016-12-19 | 2016-12-19 | Piston dynamic temperature measurement experimental rig |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525599A (en) * | 2017-07-31 | 2017-12-29 | 潍柴动力股份有限公司 | For the measurement apparatus and method measured to the dynamic temperature of engine piston |
| CN108375427A (en) * | 2018-01-23 | 2018-08-07 | 武汉理工大学 | Engine piston temperature field telemetry system Calibrating experimental bench |
| CN112146884A (en) * | 2020-09-23 | 2020-12-29 | 潍柴动力股份有限公司 | Piston temperature measuring mechanism |
| 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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| US5106202A (en) * | 1990-12-18 | 1992-04-21 | Board Of Control Of Michigan Technological University | Apparatus for measuring the temperature of a piston in an internal combustion engine |
| KR100345112B1 (en) * | 1999-12-30 | 2002-07-24 | 현대자동차주식회사 | Device for measuring an engine temperature distribution of vehicle |
| CN102853930A (en) * | 2012-08-24 | 2013-01-02 | 大连交通大学 | Transient temperature measuring system for diesel engine piston and measuring method thereof |
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| US5106202A (en) * | 1990-12-18 | 1992-04-21 | Board Of Control Of Michigan Technological University | Apparatus for measuring the temperature of a piston in an internal combustion engine |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525599A (en) * | 2017-07-31 | 2017-12-29 | 潍柴动力股份有限公司 | For the measurement apparatus and method measured to the dynamic temperature of engine piston |
| CN107525599B (en) * | 2017-07-31 | 2020-01-03 | 潍柴动力股份有限公司 | Measuring device and method for measuring dynamic temperature of engine piston |
| CN108375427A (en) * | 2018-01-23 | 2018-08-07 | 武汉理工大学 | Engine piston temperature field telemetry system Calibrating experimental bench |
| CN112146884A (en) * | 2020-09-23 | 2020-12-29 | 潍柴动力股份有限公司 | Piston temperature measuring mechanism |
| CN112146884B (en) * | 2020-09-23 | 2022-08-05 | 潍柴动力股份有限公司 | Piston temperature measuring mechanism |
| 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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