CN205786522U - Shock tube tail end cover signal pickup assembly - Google Patents
Shock tube tail end cover signal pickup assembly Download PDFInfo
- Publication number
- CN205786522U CN205786522U CN201620532685.9U CN201620532685U CN205786522U CN 205786522 U CN205786522 U CN 205786522U CN 201620532685 U CN201620532685 U CN 201620532685U CN 205786522 U CN205786522 U CN 205786522U
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- China
- Prior art keywords
- tail end
- end cover
- shock tube
- hole
- mounting seat
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Abstract
The utility model discloses a kind of shock tube tail end cover signal pickup assembly, be arranged on the tail end cover docked with shock tube flange at tail end dish, the inner side of described tail end cover is provided with and the mounting seat of its concavo-convex nested secure fit；Offer inside and outside through optical observation window through hole in described mounting seat and tail end cover, described optical observation window through hole is sealed and installed with optical lens visor, in order to the optical signal of online observation shock tube inner chamber；Being further opened with inside and outside through sensor in described mounting seat and tail end cover and install through hole, described sensor is installed in through hole and is sealed and installed with pressure transducer, in order to the pressure signal of synchronous detecting shock tube inner chamber.Its simple in construction, can guarantee that data syn-chronization, measure reliable, maintenance is convenient.
Description
Technical field
This utility model relates to shock tube signals collecting field, in particular to a kind of shock tube tail end
Lid signal pickup assembly.
Background technology
Shock tube may be used for simulating the combustion process of fuel compression ignition in diesel engine, is arranged on shock wave
The tail end cover (i.e. signals collecting end) of pipe tail end passes through optical window therein and pressure transducer
Probe gathers fuel optical signal in shock tube during compression ignition and pressure signal, is gathered by analysis
The data arrived, obtain every burning performance parameter of fuel.In prior art, major part shock wave
Pipe signal pickup assembly due in experimentation produce supertension factor and be arranged on sidewall,
This kind of apparatus structure complexity, high to requirement on machining accuracy, and it is difficult to ensure that gathered data
Synchronicity, and the signal acquiring system that minority is arranged on tail end cover all be use optical window with
The independently perforate of pressure transducer through hole, though can guarantee that the synchronicity of data, but exists at height
Compacting is difficult to ensure that the problems such as complicated, the maintenance difficulty of air-tightness, structure under the conditions of testing.
Summary of the invention
The purpose of this utility model is aiming at the problem that prior art exists, it is provided that a kind of structure
Simply, can guarantee that data syn-chronization, measurement is reliable, overhaul convenient shock tube tail end cover signal
Harvester.
For achieving the above object, the shock tube tail end cover signals collecting dress designed by this utility model
Put, be arranged on the tail end cover docked with shock tube flange at tail end dish, the inner side of described tail end cover
It is provided with and the mounting seat of its concavo-convex nested secure fit；Offer in described mounting seat and tail end cover
There is inside and outside through optical observation window through hole, described optical observation window through hole is sealed and installed with light
Learn photoscope, in order to the optical signal of online observation shock tube inner chamber；Described mounting seat and tail end cover
On be further opened with inside and outside through sensor through hole be installed, described sensor is installed in through hole and is sealed
Pressure transducer is installed, in order to the pressure signal of synchronous detecting shock tube inner chamber.Optical observation
Window through hole and sensor are installed through hole and are arranged side by side in this signal pickup assembly so that collect
Optical signal and pressure signal there is preferable synchronicity, it is ensured that the verity of experimental data.
Further, described optical observation window through hole is positioned at the junction of mounting seat and tail end cover
It is provided with positioning ring groove, in described optical lens visor is embedded in positioning ring groove and by being arranged on
The seal washer of its upper and lower surface is airtight with mounting seat and tail end cover to be connected.
Further, described seal washer is polytetrafluoroethylene gasket, polytetrafluoroethylene gasket energy
High temperature resistant, corrosion-resistant, stable performance, has good sealing property.
Further, the through hole one section and sensor sleeve corresponding to tail end cover installed by described sensor
The epimere threaded engagement of cylinder, the hypomere of described sensor sleeve is positioned at sensor and installs through hole correspondence
In a section of mounting seat, described pressure transducer is arranged on sensor by threaded engagement is airtight
In the inner chamber of sleeve, it is ensured that pressure transducer air-tightness in a device, meanwhile, pressure sensing
Device is arranged on sensor by bush whorl and installs in through hole, convenient dismounting and installation.
Further, the hypomere of described sensor sleeve is additionally provided with the location with its threaded engagement
Swivel nut, described positioning thread insert stretches into the bottom of one end in sensor sleeve and pressure transducer and supports
Connecing cooperation, the top of described pressure transducer is by the ring of ring washer with sensor sleeve tube inner chamber
Shape seam abuts and coordinates.
Further, described ring washer is copper washer.
Further, described optical lens visor is sapphire optical glass mirror, sapphire optical glass
Its hardness of glass mirror is higher, can bear the high pressure that shock wave produces, and its optical property is preferable, protects
The accuracy that card optical signal is measured.
Further, between evagination flange and the indent seam of tail end cover of described mounting seat
Being connected as a single entity by fastening bolt circumferentially, whole device easy to connect fixed by bolt
Dismounting and installation.
The utility model has the advantage of:
(1) optical observation window through hole is installed through hole side by side with sensor by this utility model device
It is arranged on end cap, it is ensured that property while the optical signal collected and pressure signal.
(2) on pressure transducer probe installation method, sleeve seal structure is used, it is ensured that
The air-tightness of device.
(3) this shock tube tail end cover signal pickup assembly simple in construction, beneficially maintenance, bolt
The installation and removal of device easy to connect.
Accompanying drawing explanation
Fig. 1 is this utility model shock tube tail end cover signal pickup assembly schematic diagram；
Fig. 2 is tail end cover and mounting seat in this utility model shock tube tail end cover signal pickup assembly
Nested fixing cross-sectional view；
Fig. 3 is that in this utility model, in shock tube tail end cover signal pickup assembly, pressure transducer is pacified
It is contained in sensor and the structural representation in through hole is installed；
In figure: tail end cover 1, mounting seat 2, optical lens visor 3, pressure transducer 4, optics
Observation window through hole 5, sensor installs through hole 6, sensor sleeve 7, positioning thread insert 8, annular
Packing ring 9, positioning ring groove 10, seal washer 11, fastening bolt 12.
Detailed description of the invention
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Shock tube tail end cover signal pickup assembly as shown in Figures 1 to 3, a kind of shock tube tail end cover
Signal pickup assembly, is arranged on the tail end cover 1 docked with shock tube flange at tail end dish, tail end
The inner side of lid 1 is provided with and the mounting seat 2 of its concavo-convex nested secure fit, outside mounting seat 2
By fastening bolt 12 circumferentially between the indent seam of boss flange limit and tail end cover 1
Being connected as a single entity, dismounting and the installation of whole device easy to connect fixed by bolt；Mounting seat 2 and tail
Inside and outside through optical observation window through hole 5 is offered, in optical observation window through hole 5 on end cap 1
It is sealed and installed with optical lens visor 3, in order to the optical signal of online observation shock tube inner chamber, optics
Photoscope 3 can be selected for sapphire optical glass mirror, and its hardness of sapphire optical glass mirror is higher,
The high pressure that shock wave produces can be born, and its optical property is preferable, it is ensured that the standard that optical signal is measured
Really property；The junction being positioned at mounting seat 2 and tail end cover 1 in optical observation window through hole 5 is provided with
Positioning ring groove 10, in optical lens visor 3 is embedded in positioning ring groove 10 and by being arranged on it
The seal washer 11 of upper and lower surface and mounting seat 2 and tail end cover 1 is airtight is connected, seal washer
11 can select polytetrafluoroethylene gasket.Pass through inside and outside being further opened with in mounting seat 2 and tail end cover 1
Through hole 6 installed by logical sensor, and sensor is installed in through hole 6 and is sealed and installed with pressure transducer
4, in order to the pressure signal of synchronous detecting shock tube inner chamber, sensor is installed through hole 6 and is corresponded to
One section of tail end cover 1 with the epimere threaded engagement of sensor sleeve 7, sensor sleeve 7 times
Section is positioned at sensor and installs through hole 6 corresponding in one section of mounting seat 2, and pressure transducer 4 leads to
Cross in the airtight inner chamber being arranged on sensor sleeve 7 of threaded engagement；The hypomere of sensor sleeve 7
Being additionally provided with the positioning thread insert 8 with its threaded engagement, positioning thread insert 8 stretches into sensor sleeve 7
In one end abut cooperation with the bottom of pressure transducer 4, the top of pressure transducer 4 is passed through
Ring washer 9 abuts cooperation with the annular stopper of sensor sleeve 7 inner chamber.Positioning thread insert 8 will
Pressure transducer 4 is fixed in sensor sleeve 7, and ring washer 9 ensures pressure transducer 4
Air-tightness in a device, packing ring 9 can be selected for copper washer.
The above is only preferred implementation of the present utility model, it is noted that for this skill
For the those of ordinary skill in art field, on the premise of without departing from this utility model principle, also
Can be designed that some changes and retouching, these improvements and modifications also should be regarded as of the present utility model
Protection domain.
Claims (8)
1. a shock tube tail end cover signal pickup assembly, is arranged on and shock tube flange at tail end
On the tail end cover (1) of dish docking, it is characterised in that: the inner side of described tail end cover (1) is arranged
There is the mounting seat (2) with its concavo-convex nested secure fit；Described mounting seat (2) and tail end cover
(1) offering inside and outside through optical observation window through hole (5) on, described optical observation window leads to
Hole (5) is sealed and installed with optical lens visor (3), in order to online observation shock tube inner chamber
Optical signal；Inside and outside through sensing it is further opened with in described mounting seat (2) and tail end cover (1)
Through hole (6) installed by device, and described sensor is installed in through hole (6) and is sealed and installed with pressure sensing
Device (4), in order to the pressure signal of synchronous detecting shock tube inner chamber.
Shock tube tail end cover signal pickup assembly the most according to claim 1, its feature
It is: described optical observation window through hole (5) is positioned at mounting seat (2) and tail end cover (1)
Junction be provided with positioning ring groove (10), described optical lens visor (3) is embedded in locating ring
In groove (10) and by being disposed thereon seal washer (11) and the mounting seat (2) on lower two sides
Airtight with tail end cover (1) it is connected.
Shock tube tail end cover signal pickup assembly the most according to claim 2, its feature
It is: described seal washer (11) is polytetrafluoroethylene gasket.
Shock tube tail end cover signal pickup assembly the most according to claim 1, its feature
It is: the through hole (6) a section and sensor corresponding to tail end cover (1) installed by described sensor
The epimere threaded engagement of sleeve (7), the hypomere of described sensor sleeve (7) is positioned at sensor
Installation through hole (6) corresponds in one section of mounting seat (2), described pressure transducer (4)
By in the airtight inner chamber being arranged on sensor sleeve (7) of threaded engagement.
Shock tube tail end cover signal pickup assembly the most according to claim 4, its feature
It is: the hypomere of described sensor sleeve (7) is additionally provided with the location spiral shell with its threaded engagement
Set (8), one end that described positioning thread insert (8) stretches in sensor sleeve (7) passes with pressure
The bottom of sensor (4) abuts and coordinates, and air ring is passed through on the top of described pressure transducer (4)
Circle (9) abuts cooperation with the annular stopper of sensor sleeve (7) inner chamber.
Shock tube tail end cover signal pickup assembly the most according to claim 5, its feature
It is: described ring washer (9) is copper washer.
7. fill according to the shock tube tail end cover signals collecting according to any one of claim 1～6
Put, it is characterised in that: described optical lens visor (3) is sapphire optical glass mirror.
8. fill according to the shock tube tail end cover signals collecting according to any one of claim 1～6
Put, it is characterised in that: the evagination flange of described mounting seat (2) is interior with tail end cover (1)
It is connected as a single entity by fastening bolt (12) circumferentially between recessed seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620532685.9U CN205786522U (en) | 2016-06-02 | 2016-06-02 | Shock tube tail end cover signal pickup assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620532685.9U CN205786522U (en) | 2016-06-02 | 2016-06-02 | Shock tube tail end cover signal pickup assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205786522U true CN205786522U (en) | 2016-12-07 |
Family
ID=58137034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620532685.9U Active CN205786522U (en) | 2016-06-02 | 2016-06-02 | Shock tube tail end cover signal pickup assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205786522U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107310187A (en) * | 2017-07-25 | 2017-11-03 | 中国科学院深海科学与工程研究所 | A kind of isostatic pressing machine working cylinder internal/external signal transferring structure |
| CN111069766A (en) * | 2019-12-27 | 2020-04-28 | 北京航天计量测试技术研究所 | End cover device of driving section of laser membrane-breaking shock tube and laser-assisted membrane-breaking method |
| CN111751485A (en) * | 2020-06-18 | 2020-10-09 | 上海交通大学 | Device, array and system for measuring flame propagation position and speed in large space |
-
2016
- 2016-06-02 CN CN201620532685.9U patent/CN205786522U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107310187A (en) * | 2017-07-25 | 2017-11-03 | 中国科学院深海科学与工程研究所 | A kind of isostatic pressing machine working cylinder internal/external signal transferring structure |
| CN111069766A (en) * | 2019-12-27 | 2020-04-28 | 北京航天计量测试技术研究所 | End cover device of driving section of laser membrane-breaking shock tube and laser-assisted membrane-breaking method |
| CN111751485A (en) * | 2020-06-18 | 2020-10-09 | 上海交通大学 | Device, array and system for measuring flame propagation position and speed in large space |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |