CN211205621U - Pressure sensing probe assembly with adjustable static pressure compensation quantity - Google Patents
Pressure sensing probe assembly with adjustable static pressure compensation quantity Download PDFInfo
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- CN211205621U CN211205621U CN201922215772.8U CN201922215772U CN211205621U CN 211205621 U CN211205621 U CN 211205621U CN 201922215772 U CN201922215772 U CN 201922215772U CN 211205621 U CN211205621 U CN 211205621U
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- amount adjusting
- adjusting sleeve
- compensation amount
- static pressure
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- 230000003068 static effect Effects 0.000 title claims abstract description 46
- 239000000523 sample Substances 0.000 title claims abstract description 28
- 230000004323 axial length Effects 0.000 claims abstract description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 1
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Abstract
The utility model relates to a pressure sensing probe component with adjustable static pressure compensation quantity, which comprises an airspeed head, a compensation quantity adjusting sleeve component and a connecting piece; the compensation amount adjusting sleeve assembly comprises a plurality of compensation amount adjusting sleeves, the outer wall surface of the front end of each compensation amount adjusting sleeve is a pneumatic compensation profile, a step is formed on the inner wall surface of the rear end of each compensation amount adjusting sleeve, and an internal thread is arranged on the inner wall surface of the rear end of each compensation amount adjusting sleeve; the connecting piece is provided with an external thread and is in threaded connection with the rear end of each compensation amount adjusting sleeve; the tail structure of the airspeed head is a flanging or a step, and the tail structure of the airspeed head is matched with the shape of the step at the rear end of each compensation quantity adjusting sleeve to limit the airspeed head; the compensation amount adjusting sleeves have different axial lengths or different pneumatic compensation profiles. The adjustment and change of the static pressure compensation quantity value are realized through two configurations, and the device is suitable for the requirements of various installation forms, and improves the universality and the applicability.
Description
Technical Field
The utility model relates to a detecting element technical field, concretely relates to pressure sensing probe subassembly of static pressure compensation volume adjustable.
Background
The total static pressure probe is a device which is arranged on the airplane and used for sensing total pressure and static pressure air pressure signals during flying, and is arranged outside the airplane. The total static pressure probe senses total pressure and static pressure air pressure signals when the airplane flies, and outputs the total pressure and static pressure air pressure signals to the airplane atmosphere calculating component for calculating airspeed and altitude. Mach number, and the like.
The probe is arranged outside the airplane and is influenced by aerodynamic disturbance of the airplane, and the static pressure needs to be compensated pneumatically. Different static pressure compensation quantities can be caused by different shapes of airplanes and different installation positions of probes. When the probe is designed, different pneumatic compensation profiles are designed for each type of probe according to different static pressure compensation values, and the static pressure compensation values are related to the distance between the static pressure holes and the pneumatic compensation profiles. After the pneumatic compensation molded surface is determined, the positions of the static pressure hole and the pneumatic compensation molded surface are also fixed, the static pressure compensation quantity is fixed accordingly, and the adjustment and the change can not be carried out.
In order to adjust and change the static pressure compensation quantity value of the total static pressure probe product, the inventor invents the total static pressure probe with the adjustable static pressure compensation quantity. The probe consists of a plurality of modules, realizes the adjustability of static pressure compensation quantity, and is suitable for various installation requirements.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem who solves: the technical problem of axial adjustment of shaft parts of instruments is solved, and in high-precision equipment such as instruments, the axial displacement of the shaft parts, especially the micro-displacement adjustment is inaccurate and cannot be adjusted quantitatively.
The technical scheme is as follows:
The utility model provides a pressure sensing probe component with adjustable static pressure compensation quantity, which comprises an airspeed head, a compensation quantity adjusting sleeve component and a connecting piece; the compensation amount adjusting sleeve assembly comprises a plurality of compensation amount adjusting sleeves, the outer wall surface of the front end of each compensation amount adjusting sleeve is a pneumatic compensation profile, a step is formed on the inner wall surface of the rear end of each compensation amount adjusting sleeve, and an internal thread is arranged on the inner wall surface of the rear end of each compensation amount adjusting sleeve; the connecting piece is provided with an external thread and is in threaded connection with the rear end of each compensation amount adjusting sleeve; the tail structure of the airspeed head is a flanging or a step, and the tail structure of the airspeed head is matched with the shape of the step at the rear end of each compensation quantity adjusting sleeve to limit the airspeed head; the axial length between the compensation amount adjusting sleeves is different or the pneumatic compensation profiles are different; each compensation amount adjusting sleeve, the airspeed head and the connecting piece can form a pressure sensing probe with adjustable static pressure compensation amount.
Furthermore, the airspeed head is provided with a static pressure hole and a drain hole.
Furthermore, the airspeed head and the compensation amount adjusting sleeve are in radial sliding fit.
Furthermore, the airspeed head is provided with a static pressure hole, and the axial distance between the pneumatic compensation profile of each compensation amount adjusting sleeve and the static pressure hole is different.
Further, the pneumatic compensation molded surface is an arc-shaped surface.
Further, the compensation amount adjustment sleeve is made of a metal material, such as aluminum alloy or stainless steel.
Furthermore, the length range of the compensation amount adjusting sleeve is between 40 mm and 80 mm.
The utility model has the advantages that: the static pressure compensation quantity value is adjusted and changed through two configurations, the static pressure compensation sleeve is suitable for requirements of various installation forms, and the corresponding compensation quantity adjusting sleeve can be selected for each type of airplane or different static pressure compensation quantities. The universality and the applicability are improved.
Drawings
Fig. 1 is a schematic structural view of the present invention (embodiment 1);
FIG. 2 is a schematic structural view of example 2;
Wherein: 1-airspeed tube; 2-compensation amount adjusting sleeve; 3-a connector; 4-pneumatic compensation profile.
Detailed Description
The following embodiments are given in conjunction with the accompanying drawings
Claims (8)
1. The utility model provides a pressure sensing probe subassembly that static pressure compensation volume is adjustable which characterized in that: comprises an airspeed head, a compensation amount adjusting sleeve assembly and a connecting piece; the compensation amount adjusting sleeve assembly comprises a plurality of compensation amount adjusting sleeves, the outer wall surface of the front end of each compensation amount adjusting sleeve is a pneumatic compensation profile, a step is formed on the inner wall surface of the rear end of each compensation amount adjusting sleeve, and an internal thread is arranged on the inner wall surface of the rear end of each compensation amount adjusting sleeve; the connecting piece is provided with an external thread and is in threaded connection with the rear end of each compensation amount adjusting sleeve; the tail structure of the airspeed head is a flanging or a step, and the tail structure of the airspeed head is matched with the shape of the step at the rear end of each compensation quantity adjusting sleeve to limit the airspeed head; the axial length between the compensation amount adjusting sleeves is different or the pneumatic compensation profiles are different; each compensation amount adjusting sleeve, the airspeed head and the connecting piece can form a pressure sensing probe with adjustable static pressure compensation amount.
2. The pressure sensing probe assembly with adjustable static pressure compensation of claim 1, wherein: the airspeed head is provided with a static pressure hole and a drain hole.
3. The pressure sensing probe assembly with adjustable static pressure compensation of claim 1, wherein: the airspeed head is in radial sliding fit with the compensation amount adjusting sleeve.
4. The pressure sensing probe assembly with adjustable static pressure compensation of claim 1, wherein: the airspeed head is provided with a static pressure hole, and the axial distance between the pneumatic compensation molded surface of each compensation amount adjusting sleeve and the static pressure hole is different.
5. The pressure sensing probe assembly with adjustable static pressure compensation of claim 4, wherein: the pneumatic compensation molded surface is an arc surface.
6. The pressure sensing probe assembly with adjustable static pressure compensation of claim 1, wherein: the compensation amount adjusting sleeve is made of metal.
7. The pressure sensing probe assembly with adjustable static pressure compensation of claim 6, wherein: the compensation amount adjusting sleeve is made of aluminum alloy or stainless steel.
8. The pressure sensing probe assembly with adjustable static pressure compensation of claim 1, wherein: the length range of the compensation amount adjusting sleeve is 40-80 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922215772.8U CN211205621U (en) | 2019-12-11 | 2019-12-11 | Pressure sensing probe assembly with adjustable static pressure compensation quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922215772.8U CN211205621U (en) | 2019-12-11 | 2019-12-11 | Pressure sensing probe assembly with adjustable static pressure compensation quantity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211205621U true CN211205621U (en) | 2020-08-07 |
Family
ID=71857108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922215772.8U Active CN211205621U (en) | 2019-12-11 | 2019-12-11 | Pressure sensing probe assembly with adjustable static pressure compensation quantity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211205621U (en) |
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2019
- 2019-12-11 CN CN201922215772.8U patent/CN211205621U/en active Active
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