CN216695032U - Zero calibration and positioning device for single-vane attack angle sensor - Google Patents
Zero calibration and positioning device for single-vane attack angle sensor Download PDFInfo
- Publication number
- CN216695032U CN216695032U CN202220010969.7U CN202220010969U CN216695032U CN 216695032 U CN216695032 U CN 216695032U CN 202220010969 U CN202220010969 U CN 202220010969U CN 216695032 U CN216695032 U CN 216695032U
- Authority
- CN
- China
- Prior art keywords
- positioning
- vane
- angle
- zero
- attack
- 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.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The utility model discloses a zero calibration and positioning device for a single-vane attack angle sensor, wherein the attack angle sensor is provided with a fixed seat and a vane, the fixed seat is provided with at least two positioning pin holes, and the zero calibration and positioning device comprises: the mounting support is positioned on the attack angle sensor through a positioning pin; the rotating arm is rotatably fixed on the mounting support through a rotating shaft and can fix the vane on the rotating arm; and the axis of the wind vane positioning plunger pin for fixing the wind vane is positioned on a plane determined by the axis of the zero positioning plunger pin hole on the rotating arm and the axis of the rotating shaft, the plane where the axis of the zero positioning plunger pin and the axis of the rotating shaft are positioned is superposed with the plane where the axes of at least two positioning pin holes on the sensor are positioned, and the four axes are parallel to each other, so that when the rotating arm drives the wind vane to rotate, the axis of the wind vane positioning pin hole is positioned on the plane where the two positioning pin holes of the attack angle sensor are positioned, and finally, the zero calibration of the attack angle sensor is realized.
Description
Technical Field
The utility model relates to the field of manufacturing, assembling and testing of airplanes, in particular to a zero calibration and positioning device for a sensor for measuring an attack angle of an airplane.
Background
In the field of civil aircraft manufacturing, an angle of attack, also called angle of attack, refers to the angle between the wing chord of a wing and the relative airflow, or the angle between the wing chord line and the direction of the aircraft velocity vector. It is a reference for determining the attitude of the wing in the air flow and is an important parameter in flight control. In the process of aircraft production and manufacturing, the accuracy of the zero position of the attack angle needs to be ensured. During the functional test of the airplane, the angle of attack needs to be adjusted to verify different control effects generated under different angles of attack.
The utility model discloses a civil aircraft attack angle signal which is mainly obtained by measuring an attack angle sensor arranged on an aircraft body, and mainly relates to a single-vane attack angle sensor which is arranged on two sides of an aircraft through 8 countersunk head screws and obtains the attack angle of the aircraft according to the angle measurement of the rotation of a vane. As shown in fig. 1, the single vane type attack angle sensor includes a fixing base on the upper surface of which a vane 4 is mounted. The vane 4 can rotate 360 degrees around its rotation axis, which is perpendicular to the upper surface of the fixing base of the single vane type attack angle sensor, so that the vane can rotate relative to the fixing base. In other words, the vane 4 is rotatably installed on the upper surface of the fixing base of the single vane type attack angle sensor.
When the axes of the vane positioning pin holes 5 and the axes of the two positioning pin holes 2 are in the same plane, the attack angle sensor is in a mechanical zero state. However, the existing zero position detection device of the attack angle sensor has limited measurement precision, and cannot accurately measure the mechanical zero position of the attack angle sensor. When zero position detection is performed by high-precision equipment such as an infrared probe, the testing method is often complex and has superposition errors, so that the high-precision adjustment requirement of the attack angle sensor cannot be met. Therefore, there is a need to develop a device for detecting and positioning the zero position of an angle of attack sensor that is highly accurate, easy to operate, and easy to adjust.
SUMMERY OF THE UTILITY MODEL
Therefore, the technical problem to be solved by the utility model is to provide a novel device for zero position detection and positioning of a single-vane attack angle sensor, in order to overcome the defects of poor measurement precision, complex test method, incapability of effectively adjusting the attack angle sensor and the like of a detection device in the existing zero position detection scheme of the single-vane attack angle sensor.
In order to solve the above technical problems, the present invention provides a zero calibration and positioning device for a single-vane type attack angle sensor, the attack angle sensor having a fixing base with at least two positioning pin holes and a vane rotatably mounted on an upper surface of the fixing base, a rotation axis of the vane rotation being perpendicular to the upper surface of the fixing base, the zero calibration and positioning device comprising:
a mounting support which can be fixed on a fixed seat of the attack angle sensor through a positioning pin hole on the mounting support by means of a positioning pin and comprises a first surface in contact with the fixed seat and a second surface arranged opposite to the first surface;
a rotating arm rotatably fixed on the second surface of the mounting support through a rotating shaft arranged on the mounting support and configured to fix the vane thereon by means of a vane positioning plunger pin so as to drive the vane to rotate together;
the rotating arm mechanism is constructed to drive the wind vane to rotate together under the action of external force, so that the axis of the wind vane positioning pin hole is positioned on the plane where the two positioning pin holes of the sensor are positioned, and zero calibration of the sensor is realized.
According to the zero calibration and positioning device of the single-vane type attack angle sensor, disclosed by the utility model, the zero detection, calibration and positioning of the attack angle sensor can be realized by correspondingly designing based on the existing structure of the single-vane type attack angle sensor, and the rotation angle of the positioning vane can be effectively adjusted, so that the accuracy of the detected attack angle of an airplane in any flight state can be ensured, the measurement error of the attack angle of the airplane is reduced as much as possible, and the effective verification of the airplane control effect under different attack angles during the airplane function test is realized.
According to one embodiment of the present invention, the base plate includes a first surface contacting the fixing base of the angle of attack sensor and a second surface disposed opposite to the first surface, and the rotating arm is rotatably mounted on the second surface of the base plate.
According to one embodiment of the utility model, the bottom plate of the mounting support is provided with a C-shaped structure, and an opening of the C-shaped structure forms an avoidance gap for avoiding interference with the attack angle sensor and the vane. The notch is avoided through the setting at the base, so that the device can be fixedly connected with the sensor, the interference between the device and the sensor and between the device and the vane can be avoided, the vane sensor and the vane are effectively protected, and the accuracy of the vane sensor measurement is ensured.
According to one embodiment of the utility model, at least two positioning pin holes are formed in the bottom plate of the mounting support, the number of the at least two positioning pin holes of the mounting support is the same as that of the at least two positioning pin holes of the fixing seat, and the positions of the at least two positioning pin holes of the mounting support and the at least two positioning pin holes of the fixing seat are in one-to-one correspondence, so that when each positioning pin is inserted into the corresponding positioning pin hole of the mounting support and the corresponding positioning pin hole of the fixing seat, the positioning connection between the device and the attack angle sensor can be realized. The positioning connection between the device and the attack angle sensor is realized by arranging at least two positioning pin holes on the mounting support to be matched with the positioning pin holes of the fixed seat of the attack angle sensor. At the moment, the positions of the rotating shaft and the zero position positioning plunger pin on the mounting support are also positioned and fixed relative to the positioning pin hole of the attack angle sensor.
According to an embodiment of the present invention, the fixing base is further formed with a threaded hole, and the mounting support further includes a threaded through hole, and the zero position calibrating and positioning device can be firmly fixed to the fixing base of the angle of attack sensor when a fastener is screwed into the threaded hole on the fixing base through the threaded through hole. The device in the embodiment is fixedly locked on the fixed seat of the attack angle sensor through the fastener, so that the device is prevented from moving and separating relative to the attack angle sensor, and the accuracy of subsequent measurement actions is ensured.
According to an embodiment of the utility model, the mounting support is further provided with a rotating shaft locking screw configured to lock the rotating shaft to maintain the vane at any angle within the rotating range. The rotating shaft is locked by the rotating shaft locking screw, and the position of the rotating arm is fixed, so that the vane can be kept unchanged at any angle in the rotating range, and the positioning of the vane and the fixed positioning of the detection angle of the vane sensor are realized.
According to an embodiment of the present invention, the device further comprises a display electrically connected to the angle of attack sensor and capable of displaying the angle value detected by the angle of attack sensor. The angle sensor is arranged on the device to display the angle of attack, so that the angle information of the angle of attack of the airplane can be directly read, and the convenience for the user to use is greatly improved.
According to one embodiment of the present invention, when the zero position locating plunger pin is inserted into the zero position locating plunger pin hole of the rotary arm, the value of the display is manually cleared to zero, so as to achieve zero position calibration of the angle of attack sensor. By resetting the numerical value of the display, the mechanical zero point of the attack angle sensor and the zero point of the displayed attack angle are unified, the subsequently displayed angle is the angle of the attack angle of the airplane, and a user can conveniently and directly read the information of the attack angle of the airplane.
According to one embodiment of the utility model, the reading of the angle value displayed on the display is automatically directed upwards, and the reading can be automatically or manually reversed. The reading characters are automatically upwards arranged, so that the method accords with ergonomics, and a user can conveniently and visually read the angle numerical value displayed by the display at any angle. According to the position of the display, the supplementary angle of the rotation angle can be obtained by carrying out automatic or manual negation, so that the actual angle of the vane in a space coordinate system is obtained.
According to one embodiment of the utility model, the zero calibration and positioning device is configured to be mountable on a single weathervane angle of attack sensor located on the left or right side of an aircraft. The zero position of the attack angle sensors on two sides of the airplane can be detected and positioned through the device, so that the attack angle sensors of the airplane on each side do not need to be designed and manufactured correspondingly, the cost is saved, and the efficiency is improved. And the same device is used for zero calibration of the attack angle sensor, so that the design error of the zero calibration device is unified, and the influence of the precision of the device on the attack angle measurement is reduced.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the utility model.
The positive progress effects of the above embodiments of the present invention are:
according to the zero calibration and positioning device for the single-vane attack angle sensor, high-precision mechanical zero calibration measurement is realized by matching a special clamp with a digital high-precision double-shaft inclination angle measuring instrument, and an airplane does not need to be leveled first; the angle locking function is added through the positioning locking device, so that the vane can be kept positioned at any specific angle in a rotating range. In addition, the zero calibration and positioning device for the single-vane attack angle sensor adopts a plunger pin structure, is simple to operate and convenient to operate and adjust, can be used on the left side and the right side of an airplane in a left-right universal mode, can automatically or manually reverse the reading, and keeps the direction of the reading text to be automatically upward.
Drawings
FIG. 1 is a schematic diagram of a single vane angle of attack sensor in the prior art.
FIG. 2 is a schematic diagram of a zero calibration and positioning device for a single vane angle of attack sensor, according to a preferred embodiment of the present invention.
FIG. 3 is a front view of the zero calibration and positioning apparatus of FIG. 2.
FIG. 4 is a top view of the zero calibration and positioning device of FIG. 2.
FIG. 5 is a perspective view showing the construction of the mounting bracket of the zero calibration and positioning device of FIG. 2.
FIG. 6 is a perspective view showing the structure of the rotating arm of the zero calibration and positioning device shown in FIG. 2.
FIG. 7 is a schematic view of a zero calibration and positioning device according to a preferred embodiment of the present invention mounted on a single weathervane angle of attack sensor.
FIG. 8 is a schematic view of the zero calibration and positioning apparatus according to the present invention installed on the left side of an aircraft.
FIG. 9 is a schematic view of the zero calibration and positioning apparatus according to the present invention installed on the right side of an aircraft.
Description of reference numerals:
1: countersunk hole
2: positioning pin hole
3: threaded hole
4: weather vane
5: vane positioning pin hole
6: mounting support
7: fastening screw
8: rotating arm
9: positioning pin hole
10: rotating shaft
11: rotating shaft locking screw
12: plunger pin with zero position location
13: display assembly
14: vane positioning plunger pin
15: rotating shaft hole
16: zero position locating plunger pin hole
17: sensor battery pack mounting box
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, is intended to be illustrative, and not restrictive, and it is intended that all such modifications and equivalents be included within the scope of the present invention.
In the following detailed description, directional terms, such as "left", "right", "upper", "lower", "front", "rear", and the like, are used with reference to the orientation as illustrated in the drawings. Components of embodiments of the present invention can be positioned in a number of different orientations and the directional terminology is used for purposes of illustration and is in no way limiting.
As is known, in the field of manufacturing and maintenance of civil aircraft, the angle of attack, also called angle of attack, is the angle between the chord of the wing and the relative airflow, or the angle between the chord line and the direction of the aircraft velocity vector. It is a reference for determining the attitude of the wing in the air flow and is an important parameter in flight control. In the process of aircraft production and manufacturing, the accuracy of the zero position of the attack angle needs to be ensured. During the functional test of the airplane, the angle of attack needs to be adjusted to verify different control effects generated under different angles of attack.
The angle of attack signal of civil aircraft is mainly measured by an angle of attack sensor arranged on the side surface of the aircraft body. At present, mechanical zero calibration and adjustment modes of an attack angle sensor mainly comprise: 1. an attack angle sensor calibrator containing a bubble level bar is constructed through an angle dial and a horizontal pointer, a slotted hole sleeve of the horizontal pointer is utilized to fix an attack angle sensor vane, the horizontal pointer is rotated, and mechanical zero position and position measurement of an attack angle are calibrated according to the indication of the bubble level bar and an angle dial. The method is limited by the measurement precision of the bubble level bar and the angle scale, and cannot accurately measure the mechanical zero position of the attack angle sensor. 2. The mounting position error of the angle of attack sensor under the horizontal and non-horizontal conditions of the airplane is tested by utilizing the angle of attack sensor test fixture and the infrared detector head metal and the level gauge. According to the method, the horizontal state of the airplane needs to be calculated, the mounting position error of the attack angle sensor is obtained through calculation, the testing method is complex, the superposition error exists, and the high-precision adjusting requirement of the attack angle sensor cannot be met. 3. And determining the installation zero position deviation of the attack angle sensor by the quadrant by using the horizontal plate and the positioning pin hole coaxial with the installation hole of the attack angle sensor. However, the method cannot effectively adjust the attack angle sensor, and the zero measurement precision of the method is limited by the measurement precision of a quadrant instrument.
The utility model mainly aims at a single-vane type attack angle sensor, and obtains the attack angle of an airplane according to the rotation angle of a vane by installing the vane of the sensor at the outer side of the airplane body. Specifically, fig. 1 shows a currently-used single vane type attack angle sensor, wherein 8 countersunk holes 1 are formed in a fixing seat of the sensor, and the single vane type attack angle sensor is fixedly installed on two sides of an airplane by passing 8 countersunk screws through the corresponding countersunk holes 1.
Still be provided with two location pinhole 2 and screw hole 3 on the fixing base of above-mentioned single weathercock formula angle of attack sensor to realize that sensor and calibrating device's location is connected and fixed locking. The vane 4 of the single vane type attack angle sensor is rotatably mounted on the upper surface of the fixing base. Illustratively, the rotation axis of the vane 4 is perpendicular to the upper surface of the fixing base, and the vane 4 is installed on the upper surface of the fixing base and can rotate 360 degrees around the rotation axis relatively, so that the vane 4 can rotate relatively to the fixing base. In addition, the vane 4 is provided with vane positioning pin holes 5, and when the axes of the vane positioning pin holes 5 and the axes of the two positioning pin holes 2 of the single vane type attack angle sensor are in the same plane, the single vane type attack angle sensor is in a mechanical zero state.
In order to perform high-precision zero calibration and positioning on the single-vane type attack angle sensor so as to realize accurate measurement of the attack angle of the airplane and finally ensure safe flight of the airplane, the utility model provides a zero calibration and positioning device for the single-vane type attack angle sensor, and the specific structure and the working mode of the device are described in detail by combining the attached drawings.
Fig. 2-4 illustrate zero position sensing and adjusting positioning devices for a single vane angle of attack sensor in accordance with the present invention. As shown in fig. 2, the apparatus includes a mounting bracket 6 and a rotating arm 8. The rotating arm 8 is matched with the vane positioning pin hole 5 on the vane 4 by means of a vane positioning plunger pin 14, can fix the vane 4 on the rotating arm, and can be rotationally fixed on the mounting support 6 through a rotating shaft 10 arranged on the mounting support 6, so that the vane 4 can be driven to rotate together. The mount bracket 6 mounts and fixes the rotating arm 8 to which the vane is fixed to the attack angle sensor by a set screw 7.
The device also comprises a rotating shaft locking screw 11, the rotating shaft locking screw 11 is fixedly connected on the mounting support 6 through a screw fixing seat, and the axis of the rotating shaft locking screw 11 is vertically intersected with the axis of the rotating shaft 10. The rotating shaft 10 can be locked to lock and fix the rotating shaft 8 by rotating the rotating shaft locking screw 11 to enable the top of the rotating shaft locking screw to abut against the rotating shaft 10, so that the vane 5 can be positioned and fixed at any angle in a rotating range.
The mounting support 6 further comprises a display 13, and the display 13 is physically connected and fixed on the mounting support 6. Preferably, the display 13 is fixed to the mounting support 6 by means of a glue connection. The display 13 is electrically connected to the angle of attack sensor and is capable of displaying the angle of rotation of the vane 4. The display 13 displays the angle value and the direction of the reading text is automatically upward. According to the position of the display, the reading of the display 13 can be automatically or manually inverted, and the supplementary angle of the initial reading display angle is obtained, so that a user can directly obtain the actual angle of the wind vane 4 in a space coordinate system.
Illustratively, the specific structure of the mounting bracket 6 is shown in fig. 5. The mounting bracket includes a base plate, a support arm, and a top plate. One end of the supporting arm is connected with the bottom plate and vertically extends upwards, and the other end of the supporting arm is connected with the top plate. The bottom plate is parallel to the bottom plate and extends horizontally from one end of the supporting arm. The rotating shaft locking screw 11 and the display 13 are both arranged on the top plate of the mounting support 6.
Further, fig. 5 shows that the bottom plate of the mount bracket 6 is integrally C-shaped. That is to say, the mounting support 6 has a C-shaped structure, and the C-shaped structure is provided with an avoidance notch, so that interference with the attack angle sensor and the vane can be avoided. The base of the mounting support 6 comprises a first surface and a second surface, the second surface being located above the first surface. The first surface of the bottom plate of the mounting support 6 is in contact with the fixed seat of the attack angle sensor, so that the fixed connection with the attack angle sensor is realized. A rotatable pivot arm 8 is mounted to a second surface of the base plate of the mounting bracket 6.
In addition, the base of the mounting support 6 is provided with two positioning pin holes 9, the fixing seat on the single vane type attack angle sensor shown in fig. 1 is provided with two positioning pin holes 2, the number of the positioning pin holes 9 is the same as that of the positioning pin holes 2, and the positioning pin holes 9 and the positioning pin holes 2 are in one-to-one correspondence. When the axes of the positioning pin hole 9 and the positioning pin hole 2 coincide and the positioning pin is inserted into the positioning pin hole 9 and the positioning pin hole 2, the zero calibration and the positioning connection between the positioning device and the attack angle sensor can be realized.
Meanwhile, the base of the mounting support 6 is also provided with threaded through holes, the fixing seat on the single vane type attack angle sensor shown in fig. 1 is provided with threaded holes 3, and the threaded through holes correspond to the threaded holes 3 in position one to one. By means of the set screw 7, the set screw 7 is screwed into the threaded through hole and the threaded hole 3, zero position detection and locking fixation of the device and the attack angle sensor can be achieved, and therefore the zero position calibration and positioning device is prevented from moving relative to the attack angle sensor or being separated from the attack angle sensor.
In addition, as shown in fig. 5, the mounting support 6 further includes a spindle 10, a zero position column plug pin 12 and a spindle locking screw 11 mounted thereon. Wherein, the axes of the zero position locating plunger pin 12 and the rotating shaft 10 are on a plane determined by the axes of the two locating pin holes 9 of the mounting support 6, and the four axes are parallel to each other. In other words, the plane defined by the axis of the null position plunger pin 12 and the axis of the rotating shaft 10 coincides with the plane defined by the axes of the two positioning pin holes 2 of the angle of attack sensor, and the four axes are parallel to each other. The rotating arm 8 is rotatably fixed on the second surface of the mounting support 6 through a rotating shaft 10 arranged on the mounting support 6, so as to realize rotatable connection with the mounting support 6.
Illustratively, the specific structure of the rotating arm 8 is as shown in fig. 6, and the rotating arm 8 includes a rotating shaft hole 15, a vane positioning plunger pin 14, and a zero position positioning plunger pin hole 16. The rotating arm 8 also comprises a sensor battery pack mounting box 17 capable of housing the battery of the angle of attack sensor. Wherein, the axis of the vane positioning plunger pin 14 is in a plane defined by the axis of the rotating shaft hole 15 and the axis of the zero position positioning plunger pin hole 16. The rotating arm 8 is connected with the rotating shaft 10 on the mounting support 6 in a matching way through the rotating shaft hole 15 on the rotating arm, so that the rotating arm can be rotatably connected with the mounting support 6, and therefore in the zero position calibrating and positioning device, the axis of the rotating shaft 10 is coincident with the axis of the rotating shaft hole 15.
According to the above, the plane defined by the axis of the zero position positioning plunger pin 12 on the mounting support 6 and the axis of the rotating shaft 10 coincides with the plane defined by the axes of the two positioning pin holes 2 of the attack angle sensor, and the axis of the rotating shaft 10 coincides with the axis of the rotating shaft hole 15. Therefore, when the rotating arm 8 is rotated to make the axis of the zero position positioning plunger pin 12 on the mounting support 6 coincide with the axis of the zero position positioning plunger pin hole 16 on the rotating arm 8, the plane defined by the axis of the rotating shaft hole 15 on the rotating arm and the axis of the zero position positioning plunger pin hole 16 on the mounting support 6 coincides with the plane defined by the axis of the zero position positioning plunger pin 12 on the mounting support 6 and the axis of the rotating shaft 10, that is, the plane defined by the axis of the rotating shaft hole 15 on the rotating arm and the axis of the zero position positioning plunger pin hole 16 coincides with the plane defined by the axes of the two positioning pin holes 2 of the attack angle sensor.
In addition, the axis of the wind vane positioning plunger pin 14 on the rotating arm 8 is in a plane defined by the axis of the rotating shaft hole 15 and the axis of the zero position positioning plunger pin hole 16, and the axis of the wind vane positioning pin hole 5 is coincident with the axis of the wind vane positioning plunger pin 14. Therefore, when the plane defined by the axes of the zero position plunger pin hole 16 and the rotating shaft hole 15 on the rotating arm is coincident with the plane defined by the axes of the two positioning pin holes 2 of the attack angle sensor, the axis of the vane positioning plunger pin 14 is also positioned on the plane defined by the axes of the two positioning pin holes 2 of the attack angle sensor, so that the axis of the vane positioning pin hole 5 is also coincident with the plane defined by the axes of the two positioning pin holes 2 of the attack angle sensor, and therefore, the mechanical zero position detection calibration of the attack angle sensor is realized.
Fig. 7 illustrates an assembly of the disclosed zero calibration and positioning device with a single weathervane angle of attack sensor, the manner in which the zero calibration and positioning device adjusts the zero calibration and positioning of the angle of attack sensor as described in more detail below.
First, the rotation release rotating shaft locking screw is rotated so that the rotating arm can freely rotate around the rotating shaft. And then, inserting a positioning pin through corresponding positioning pin holes on the mounting support and the attack angle sensor, and positioning the zero calibration and positioning device on the vane type attack angle sensor. The zero calibration and positioning device is then secured to the angle of attack sensor using set screws. And then, the vane is fixedly connected to the rotating arm by means of a vane positioning plunger pin. And then, rotating the rotating arm, inserting a zero-position positioning column plug pin into a zero-position positioning pin hole on the rotating arm, returning the wind vane to the mechanical zero position of the wind vane, and detecting and calibrating the mechanical zero position of the wind vane by the attack angle sensor.
Furthermore, when the zero-position positioning column plug pin is inserted into the zero-position positioning plunger pin hole of the rotating arm, the display numerical value of the display is manually adjusted and reset, so that the displayed data is 0, the unification of the electric zero position and the mechanical zero position of the attack angle sensor is realized, and the calibration of the display angle of the attack angle sensor is realized. Furthermore, the zero position positioning plunger pin is pulled out, the rotating arm is rotated according to test requirements, and the display displays the rotating angle of the vane. When the wind vane rotates to a required angle, the rotating shaft locking screw is screwed to position the rotating arm, so that the positioning and locking of the wind vane are realized, and the airplane functional performance test is carried out.
The zero calibration and positioning device for the attack angle sensor is mainly applied to the field of manufacturing, assembling and testing of airplanes. Because the left and right side installations of the aircraft use angle of attack sensors of the same construction and are mirror symmetrical with respect to the fuselage of the aircraft. Therefore, the zero calibration and positioning device disclosed by the utility model can be arranged on a single-vane attack angle sensor positioned on the left side or the right side of an airplane to detect and position the zero of the attack angle sensor on the left side or the right side of the airplane. Fig. 8 and 9 respectively show that the zero calibration and positioning device is installed on the single vane type attack angle sensors on the left side and the right side of the airplane, the zero of the single vane type attack angle sensors on the left side and the right side of the airplane is detected and calibrated, the angle of the vane is adjusted, and the positioning of the specific angle of the vane is realized through the rotating shaft locking screw.
The beneficial technical effects of the above preferred embodiment of the utility model are as follows:
the zero calibration method has the advantages that the zero calibration and positioning functions of the basic attack angle sensor are achieved, the positioning accuracy is high, the zero calibration of the sensor can be carried out in any state of the airplane, the airplane does not need to be leveled first, the calibration steps are simplified, and the calibration accuracy is improved.
The angle locking function is added, so that the vane can be kept unchanged at any angle within the rotation range, and the effective adjustment and positioning of the specific angle of the vane are realized.
The plunger pin structure is adopted by the zero position positioning structure and the vane positioning structure, the structure is simple, the operation is convenient, and meanwhile, the cost is greatly saved.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and that the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications are within the scope of the utility model.
Claims (10)
1. A zero calibration and positioning device for a single-vane angle of attack sensor having a fixed base with at least two positioning pin holes formed therein and a vane rotatably mounted on an upper surface of the fixed base, the vane rotating with a rotation axis perpendicular to the upper surface of the fixed base, the zero calibration and positioning device comprising:
a mounting support comprising a base plate and configured to be securable to a fixed mount of the angle of attack sensor via a dowel pin hole in the base plate by means of a dowel pin;
the rotating arm is rotatably fixed on the mounting support through a rotating shaft arranged on the mounting support and is configured to fix the vane on the mounting support by means of a vane positioning plunger pin so as to drive the vane to rotate together;
the axis of the vane positioning plunger pin is positioned on a plane determined by the axis of a zero position positioning plunger pin hole in the rotating arm and the axis of the rotating shaft; and
the plane where the axes of the zero position positioning plunger pin hole and the axis of the rotating shaft are located coincides with the plane where the axes of the at least two positioning pin holes in the attack angle sensor are located, and the four axes are parallel to each other, so that zero position calibration of the attack angle sensor can be realized when the zero position positioning plunger pin is inserted into the zero position positioning plunger pin hole in the rotating arm.
2. The zero calibration and positioning device of claim 1 in which the base plate includes a first surface in contact with the mounting block of the angle of attack sensor and a second surface disposed opposite the first surface, the pivot arm being rotatably mounted on the second surface of the base plate.
3. A zero calibration and positioning device as claimed in claim 2 wherein the base plate of the mounting bracket has a C-shaped configuration with an opening forming an escape notch to avoid interference with the angle of attack sensor and the vane.
4. A zero position calibrating and positioning device as claimed in claim 1, wherein the bottom plate of the mounting support is provided with at least two positioning pin holes, and the number of the at least two positioning pin holes on the bottom plate of the mounting support is the same as the number of the at least two positioning pin holes of the fixing base, and the positions thereof are in one-to-one correspondence, so that when each positioning pin is inserted into the corresponding positioning pin hole of the mounting support and the fixing base, the zero position calibrating and positioning device can be connected with the attack angle sensor in a positioning manner.
5. A zero position aligning and positioning device as claimed in claim 4, wherein said fixing base is further formed with a threaded hole, and said mounting bracket further includes a threaded through hole, and said zero position aligning and positioning device can be firmly fixed to the fixing base of said angle of attack sensor when a fastener is screwed into said threaded hole of said fixing base through said threaded through hole.
6. A zero calibration and positioning device as set forth in claim 1 further comprising a spindle locking screw configured to lock said spindle to maintain said vane at any angle within a range of rotation.
7. A zero calibration and positioning device as claimed in claim 1, further comprising a display electrically connected to the angle of attack sensor and configured to display the value of the angle detected by the angle of attack sensor.
8. A zero position calibration and positioning device as set forth in claim 7 wherein the display is manually cleared to zero when the zero position plunger pin is inserted into the zero position plunger pin hole of the rotary arm to effect zero position calibration of the angle of attack sensor.
9. A zero calibration and positioning device as claimed in claim 7, wherein the angular value displayed on the display is read out literal-up and the reading can be automatically or manually reversed.
10. A zero calibration and positioning device as claimed in claim 1, wherein the zero calibration and positioning device is configured to be mountable on the single weathervane angle of attack sensor on either the left or right side of an aircraft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220010969.7U CN216695032U (en) | 2022-01-05 | 2022-01-05 | Zero calibration and positioning device for single-vane attack angle sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220010969.7U CN216695032U (en) | 2022-01-05 | 2022-01-05 | Zero calibration and positioning device for single-vane attack angle sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216695032U true CN216695032U (en) | 2022-06-07 |
Family
ID=81819760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220010969.7U Active CN216695032U (en) | 2022-01-05 | 2022-01-05 | Zero calibration and positioning device for single-vane attack angle sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216695032U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115057000A (en) * | 2022-08-16 | 2022-09-16 | 中国空气动力研究与发展中心空天技术研究所 | Zero calibration device and calibration method for hypersonic aircraft air rudder system |
-
2022
- 2022-01-05 CN CN202220010969.7U patent/CN216695032U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115057000A (en) * | 2022-08-16 | 2022-09-16 | 中国空气动力研究与发展中心空天技术研究所 | Zero calibration device and calibration method for hypersonic aircraft air rudder system |
| CN115057000B (en) * | 2022-08-16 | 2022-11-01 | 中国空气动力研究与发展中心空天技术研究所 | Zero calibration device and calibration method for hypersonic aircraft air rudder system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3782167A (en) | Onboard calibration and test of airborne inertial devices | |
| US8171770B2 (en) | Calibration tool for air data measurement devices | |
| CN216695032U (en) | Zero calibration and positioning device for single-vane attack angle sensor | |
| CN110987013A (en) | Method and device for calibrating gyroscope angular motion measurement system | |
| CN209802268U (en) | Unmanned aerial vehicle pneumatic control surface calibration device | |
| CN107345795A (en) | Rotary laser for the measurement of lathe | |
| CN112665491B (en) | Wind vane angle measuring device and method for attack angle sensor | |
| CN214502835U (en) | Anemoscope support capable of adjusting windward direction at multiple angles | |
| CN211234452U (en) | Angle of attack sensor angle test fixture | |
| WO2022067594A1 (en) | Five-axis linkage numerical control machine tool rotation axis position error detection method and device | |
| CN215728232U (en) | Attack angle sensor calibrating device | |
| CN204554285U (en) | A kind of multi inertial sensor testing apparatus detects frock | |
| CN209689641U (en) | Three axis microsensor the high and low temperature test devices | |
| CN114166130A (en) | Two-angle positioning distance and height measuring device and measuring method | |
| JP2001174363A (en) | Measuring probe orientating device | |
| CN110823163A (en) | Device for measuring rudder rotation angle | |
| CN220418483U (en) | Three-axis verification platform for gyroscope | |
| CN116538897B (en) | Measuring device for aircraft installation | |
| CN211060936U (en) | Wing flap inclination sensor test fixture | |
| CN114252091B (en) | Rotating speed calibration device and method for gyroscope measurement system | |
| CN112697168B (en) | Measuring device and method for simultaneously measuring scale factor and misalignment angle of fiber-optic gyroscope | |
| CN112082575B (en) | Test device and method for testing influence of acceleration on tilt angle sensor | |
| CN219694180U (en) | Datum point detects frock | |
| CN114966889B (en) | Device and method for detecting stability and precision of airborne stabilized platform | |
| CN217465767U (en) | Testing arrangement of angle of attack sensor of weathercock formula |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |