CN2663963Y - A fastener for calibrating shock tube end cap - Google Patents
A fastener for calibrating shock tube end cap Download PDFInfo
- Publication number
- CN2663963Y CN2663963Y CN 03209072 CN03209072U CN2663963Y CN 2663963 Y CN2663963 Y CN 2663963Y CN 03209072 CN03209072 CN 03209072 CN 03209072 U CN03209072 U CN 03209072U CN 2663963 Y CN2663963 Y CN 2663963Y
- Authority
- CN
- China
- Prior art keywords
- shock tube
- end cap
- blueing
- tube body
- shock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a fastener for calibrating shock tube end cap, which comprises a bolt, a shock tube body with the end welded with blueing, an end cap, a sensor, a cylindrical block and a clamp, wherein, one end of the cylindrical block is provided with a screw hole, while both ends of the clamp are provided with convex blocks provided with screw holes; the blueing of the shock tube is involutive to the blueing of the end cap with the involution part being provided with a gap; the intracavity of the involution part is provided with a notch having the inside provided with the cylindrical block; the outsides of both the blueing of the port of the shock tube body and the blueing of the end cap are made into shoulders tilting inwards at 25 degrees; the clamp is locked outside the shoulders; the sensor is arranged inside the screw hole of the cylindrical block; the bolt passes through the screw hole of the clamp and fastens down the blueing of the shock tube body and the end cap of the shock tube. Through arranging a thick cylindrical block inside the end cap of the shock tube and adopting clamp fastening mode outside the end cap, the utility model substantially reduces axial vibration influence of bolt generated by the impact of incident shock wave, thereby increasing check precision.
Description
Technical field
The utility model relates to a kind of securing member, particularly relates to a kind of securing member that is used to demarcate the shock tube end cap.
Background technology
The demarcation shock tube is mainly used in the calibration of pressure transducer dynamic property.The tested sensor of timing signal was placed on the shock tube downstream end cap in the past, and end cap is connected fastening (as shown in Figure 1) with turning blue of shock tube body end with bolt, and when incident shock acts on the end cap and reflex time fully, end cap bears temporary impact load.Shock load can cause the axial vibration of fastening bolt, cause the flexural vibrations of end cap (if thickness is less) simultaneously, these vibration signals that produced all will be superimposed on the tested sensor, therefore make the school survey precision and reduce, and bring very big difficulty to spectrum analysis.
Summary of the invention
The purpose of this utility model is: in order to overcome since when demarcating shock tube the incident shock shock load can cause the flexural vibrations of end cap and the axial vibration of securing member bolt, and influence the defective that the precision reduction is surveyed in the school; Thereby provide a kind of securing member that is used to demarcate the shock tube end cap.
The purpose of this utility model is achieved in that
The securing member that is used to demarcate the shock tube end cap that the utility model provides comprises: bolt 3, end are welded with the shock tube body 1 that turns blue, are welded with the shock tube end cap 2 and the sensor 4 that turn blue; It is characterized in that: also comprise a cylinder sprue 5 and clip 7, these cylinder sprue 5 one ends have screw, and clip 7 two ends are provided with protruding block, have screw on this protruding block; Wherein turning blue of shock tube body end 8 turned blue and is involutory with the shock tube end cap, and its apposition position leaves the gap, and this apposition position inner chamber has a breach that cooperates with the cylinder sprue, its interior installation cylinder sprue 5; Turning blue of its shock tube body end 8 all made the convex shoulder 6 of inside 25 ° of inclinations with the shock tube end cap outside of turning blue, one with the clip 7 of convex shoulder 6 gradients couplings, be stuck in outside the convex shoulder 6, a sensor 4 is installed in the cylinder sprue screw: two bolts 3 pass from the screw of clip 7 the shock tube body are turned blue 8 and shock tube end cap 2 be fixedly clamped (seeing shown in the accompanying drawing 2).
Described cylinder sprue makes thickness more than or equal to 1/2nd shock tube calibers.
Described shock tube body 1 turns blue and the gap of shock tube end cap 2 apposition positions is 20-30mm.
The securing member that is used to demarcate the shock tube end cap that the utility model provides, adopt a thick cylinder sprue is installed in the shock tube end cap, with the fixed form that clamps at its external application clip, it is the influence that thick cylinder sprue helps eliminating flexural vibrations, disappear widely except when when being subjected to incident shock and impacting, the axial vibration influence of the bolt that is produced makes the school survey precision and improves, and brings great convenience to spectrum analysis.It is convenient that this securing member dress is driven, easy operating.
Description of drawings
Fig. 1 is the bolt fastening structure synoptic diagram of general demarcation shock tube end cap
Fig. 2 is the structural representation of securing member of the present utility model
The drawing explanation
1-body 2-end cap 3-bolt convex shoulder
4-sensor 5-sprue 6-convex shoulder
7-clip 8-turns blue
Embodiment
Embodiment 1
With reference to figure 2, the securing member that is used to demarcate the shock tube end cap of this embodiment, comprise that at one high pressure and low pressure stage are formed, length overall is the shock tube body 1 of ф 8.5m, the low pressure segment length of its this shock tube body 1 is that 6m (being shock tube body 1 end) goes up making one securing member of the present utility model.Shock tube body 1 end is welded with and turns blue 8,8 the external diameter of turning blue is ф 240mm, internal diameter is ф 160mm, the convex shoulder 6 of inside 25 ° of inclinations is made in described 8 the outer of turning blue, accent has a breach that can block cylinder sprue 5 in its shock tube body 1, these cylinder sprue 5 one end faces have a screw, and clip 7 two ends are provided with protruding block, have screw on this protruding block; Shock tube end cap 2 is welded with and turns blue, its end cap 2 is welded with the shape of the turning blue tall paper hat shape as the band edge, its internal diameter is ф 160mm, the diameter of outer is ф 240mm, and the convex shoulder 6 of inside 25 ° of inclinations is also made in the outside that shock tube end cap 2 turns blue, interior accent also has a breach that can block cylinder sprue 5, turn blue and 8 be involutory with shock tube end cap 2, and all can in the gap of leaving 20-30mm, at both apposition positions the cylinder sprue 5 of one thick 60mm is installed, the internal diameter that the diameter of its cylinder and cylinder sprue are 5 mouthfuls is complementary.Pressure transducer 4 peaces of buying on one market are assembled in the cylinder sprue screw.One is stuck in outside the convex shoulder 6 with the clip 7 of convex shoulder 6 gradients couplings, two bolts 3 from the screw of clip 7 pass with the shock tube body turn blue 8 and shock tube end cap 2 be fixedly clamped.
Claims (3)
1. securing member that is used to demarcate the shock tube end cap, comprising: bolt (3), end are welded with shock tube body (1), shock tube end cap (2) and the sensor (4) that turns blue; It is characterized in that: also comprise a cylinder sprue (5) and clip (7), this cylinder sprue (5) bottom has screw, and clip 7 two ends are provided with protruding block, have screw on this protruding block; Wherein turn blue (8) of shock tube body end are involutory with turning blue of shock tube end cap, and its apposition position leaves the gap, and accent blocks cylinder sprue (5) breach, interior installation cylinder sprue (5) in it; The convex shoulder (6) of inside 25 ° of inclinations is made in the outside of turning blue of shock tube body (1) and shock tube end cap (2), and one is stuck in outside the convex shoulder (6) with the clip (7) of convex shoulder (6) gradient coupling, and a sensor (4) is installed in the cylinder sprue screw; Two bolts (3) pass from the screw of clip (7) and the shock tube body are turned blue (8) and end cap (2) is fixedly clamped.
2. by the described securing member that is used to demarcate the shock tube end cap of claim 1, it is characterized in that: the thickness of described cylinder sprue is more than or equal to 1/2nd shock tube calibers.
3. by the described securing member that is used to demarcate the shock tube end cap of claim 1, it is characterized in that: described shock tube body turns blue and the gap at the place of being involutory of turning blue of shock tube end cap is 20-30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03209072 CN2663963Y (en) | 2003-09-08 | 2003-09-08 | A fastener for calibrating shock tube end cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03209072 CN2663963Y (en) | 2003-09-08 | 2003-09-08 | A fastener for calibrating shock tube end cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2663963Y true CN2663963Y (en) | 2004-12-15 |
Family
ID=34325007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03209072 Expired - Fee Related CN2663963Y (en) | 2003-09-08 | 2003-09-08 | A fastener for calibrating shock tube end cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2663963Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975654A (en) * | 2010-09-09 | 2011-02-16 | 中国工程物理研究院流体物理研究所 | Film-breaking device of electric film-breaking shock tube |
| CN101984331A (en) * | 2010-09-30 | 2011-03-09 | 南京航空航天大学 | Dynamics comprehensive test bed for half-unfolding gas bomb with long tilting rotor wing |
| CN111044211A (en) * | 2019-12-27 | 2020-04-21 | 北京航天计量测试技术研究所 | Shock tube driven section end cover fastening and supporting device capable of generating large-magnitude step pressure |
-
2003
- 2003-09-08 CN CN 03209072 patent/CN2663963Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975654A (en) * | 2010-09-09 | 2011-02-16 | 中国工程物理研究院流体物理研究所 | Film-breaking device of electric film-breaking shock tube |
| CN101975654B (en) * | 2010-09-09 | 2012-02-01 | 中国工程物理研究院流体物理研究所 | Film-breaking device of electric film-breaking shock tube |
| CN101984331A (en) * | 2010-09-30 | 2011-03-09 | 南京航空航天大学 | Dynamics comprehensive test bed for half-unfolding gas bomb with long tilting rotor wing |
| CN101984331B (en) * | 2010-09-30 | 2012-11-28 | 南京航空航天大学 | Dynamics comprehensive test bed for half-unfolding gas bomb with long tilting rotor wing |
| CN111044211A (en) * | 2019-12-27 | 2020-04-21 | 北京航天计量测试技术研究所 | Shock tube driven section end cover fastening and supporting device capable of generating large-magnitude step pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |