CN113251261B - Attack angle sensor positioning tool and using method - Google Patents
Attack angle sensor positioning tool and using method Download PDFInfo
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- CN113251261B CN113251261B CN202110596159.4A CN202110596159A CN113251261B CN 113251261 B CN113251261 B CN 113251261B CN 202110596159 A CN202110596159 A CN 202110596159A CN 113251261 B CN113251261 B CN 113251261B
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000012360 testing method Methods 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000003754 machining Methods 0.000 claims abstract description 5
- 238000005259 measurement Methods 0.000 abstract description 5
- 239000000523 sample Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- RZVHIXYEVGDQDX-UHFFFAOYSA-N 9,10-anthraquinone Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3C(=O)C2=C1 RZVHIXYEVGDQDX-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P1/00—Details of instruments
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/02—Indicating direction only, e.g. by weather vane
- G01P13/025—Indicating direction only, e.g. by weather vane indicating air data, i.e. flight variables of an aircraft, e.g. angle of attack, side slip, shear, yaw
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses an attack angle sensor positioning tool, which comprises a left side wall plate, a right side wall plate, a supporting plate, a bracket, a pressing plate and an air knife fixing block, wherein the supporting plate is horizontally arranged, two ends of the supporting plate are respectively connected with the left side wall plate and the right side wall plate to form an H-shaped structure, and a rectangular through hole is formed in the left side wall plate; the pressing plate is used for pressing and mounting the attack angle sensor on the supporting plate, and the pressing plate is connected with the supporting plate through mounting screws; the support is provided with a groove, the right side of the groove is provided with a zero reference surface which is formed by machining and can be matched with an air knife of the attack angle sensor, and the bottom of the support is connected with the supporting plate. In addition, the invention also discloses a method for using the angle of attack sensor positioning tool; the zero-position adjustment device is mainly used for zero-position adjustment of the resolver of the angle of attack sensor and zero-position output test of the resolver, and has the advantages of convenience and reliability in installation, convenience, effectiveness, labor saving, capability of guaranteeing the measurement precision and improving the accuracy in actual use.
Description
Technical Field
The invention relates to the technical field of aviation equipment, in particular to an attack angle sensor positioning tool; in addition, the invention also relates to a use method of the attack angle sensor positioning tool.
Background
The attack angle sensor is also called as an attack angle sensor. The size of the attack angle is closely related to the lift force and the drag force of the airplane. The angle of attack signal can be directly indicated for the driver to observe. In the atmosphere data computer, the output of the attack angle sensor is compensated and calculated to become the true attack angle for correcting the static pressure source error (see airspeed head), and the signal can be input to an instrument display and stall warning system. When the actual attack angle approaches the critical attack angle, so that the airplane is in danger of stalling, the stalling warning system sends out various forms of warning signals. Angle of attack signals are often introduced in flight control systems to limit maximum normal overload. The angle of attack signal is also used in the throttle control system.
The method mainly comprises the following steps: the wind vane type attack angle sensor comprises airfoil blades (namely a wind vane) with symmetrical sections, a rotating shaft, an angle converter, a counterweight and the like. The two types of the single wind vane and the double wind vane are divided, and the latter is a combined sensor of an attack angle and a sideslip angle. The single-vane type attack angle sensor is mostly arranged on the side surface of the airplane, while the double-vane type sensor is usually combined with the airspeed tube and arranged on a support rod in front of the nose, and the sensor is positioned in a more stable airflow due to being far away from the nose, so that the feeling of the attack angle of the airplane is more accurate. The vane type attack angle sensor has the advantages of simple structure and reliable work, but has high requirements on the processing and surface finish of the airfoil profile.
The zero-pressure attack angle sensor consists of a probe, a blade, an air chamber, an angle converter and the like (see the figure). The probe is a cone symmetrically provided with two rows of air holes at two sides of the central line, and a middle clapboard is arranged in the cone. The cone is rigidly connected with the hollow shaft, and the blades and the movable part of the angle converter are fixed on the hollow shaft. The zero-pressure angle of attack sensor is mounted on the side of the fuselage or nose, with the probe axis of rotation perpendicular to the plane of symmetry of the aircraft and with the plane of symmetry of the air inlet A, B parallel to the chord direction. The zero-pressure type attack angle sensor has better damping, the output electric signal is more stable, and the precision is also very high (reaching 0.1 degree). Only the conical probe (about 10 cm long) of the sensor is exposed outside the skin of the aircraft, and causes very little additional drag on the aircraft. However, the sensor is complex in structure and high in assembly precision requirement.
OEM-issued CMMs of angle of attack sensors have high requirements on their zero degree output signal accuracy (0.15 degrees). However, the streamline air knife is of a special-shaped structure, a special positioning device is not arranged on the streamline air knife, a special zero position positioning tool is needed to adjust an output zero position signal of the streamline air knife, and the streamline air knife is very inconvenient to test in actual use.
Disclosure of Invention
The invention aims to provide an attack angle sensor positioning tool which is mainly used for positioning an attack angle sensor air knife so as to confirm zero position, and has the advantages of convenience and reliability in installation, convenience, effectiveness, labor saving and capability of guaranteeing measurement precision and accuracy in actual use;
in addition, the invention also discloses a use method of the attack angle sensor positioning tool.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
an attack angle sensor positioning tool comprises a left side wall plate, a right side wall plate, a supporting plate, a bracket, a pressing plate and a wind knife fixing block,
the supporting plate is horizontally arranged, two ends of the supporting plate are respectively connected with the left side wall plate and the right side wall plate to form an H-shaped structure, and a rectangular through hole is formed in the left side wall plate;
the pressing plate is used for pressing and mounting the attack angle sensor on the supporting plate, and the pressing plate is connected with the supporting plate through mounting screws;
a groove is formed in the support, a zero reference surface which is formed by machining and can be matched with an air knife of the attack angle sensor is arranged on the right side of the groove, and the bottom of the support is connected with the supporting plate; at least two through holes are formed in the left side of the support, and each through hole is provided with a sliding shaft in a sliding mode;
the air knife fixing block is positioned in the groove, a matching surface capable of being matched with an air knife of the attack angle sensor is arranged on the right side of the air knife fixing block, the right end of the sliding shaft is connected with the air knife fixing block, and the left end of the sliding shaft extends to the rectangular through hole;
each sliding shaft is sleeved with a spring, and two ends of each spring are respectively contacted with the side wall of the groove of the support and the air knife fixing block; a locking screw for fixing the sliding shaft is arranged on the bracket; circular openings are formed in the supporting plate and the pressing plate, and a rectangular groove is formed in the pressing plate.
Wherein, two positioning holes are arranged on the supporting plate.
Further optimize, be provided with three circular through-hole on left side wallboard and the right wallboard, correspond position department with circular through-hole on the wallboard of left and right in the backup pad and be provided with the screw hole, left and right wallboard forms through the screw assembly with the backup pad.
Further limit, the support bottom is provided with two screw holes, the support passes through the fixed setting of screw in the backup pad.
The device comprises a support plate, a pressing plate, a through hole, a threaded hole, a screw and a screw, wherein the through hole is formed in the four corners of the pressing plate, the threaded hole is formed in the support plate and corresponds to the through hole, and the pressing plate is connected with the support plate through the screw and then presses and installs an attack angle sensor on the support plate.
Further optimizing, be provided with the screw hole on the air knife fixed block, sliding shaft tip with the screw hole cooperation is connected.
The invention discloses a method for using an attack angle sensor positioning tool, which specifically comprises the following steps:
step 1: loosening the locking screw, pulling the sliding shaft to push the air knife fixing block to the left limit position of the groove, and fixing the sliding shaft by using the locking screw;
step 2: placing an air knife of the attack angle sensor in the middle of the groove, aligning a positioning pin of the attack angle sensor with a positioning hole arranged on the supporting plate, placing the attack angle sensor in the circular opening, and slowly pressing the attack angle sensor in place;
and step 3: the rectangular groove of the pressure plate penetrates through an air knife of the attack angle sensor, is placed on the surface of an installation disc of the attack angle sensor, and is pressed on the support plate by using an installation screw;
and 4, step 4: fixing the air knife fixing block by hand, slowly loosening the locking screw, enabling the air knife fixing block to tightly press the air knife under the action of the pre-tightening force of the spring, and then screwing the locking screw to fix the sliding shaft;
and 5: the tool is turned over by 180 degrees up and down, and zero adjustment and zero test of the angle of attack sensor can be realized after the angle of attack transmitter is connected to the electric test bench by a test cable.
Compared with the prior art, the invention has the following beneficial effects:
the invention mainly comprises a left side wall plate, a right side wall plate, a supporting plate, a bracket, a pressing plate, an air knife fixing block and other components, wherein the position of an attack angle sensor is determined by a positioning hole on the supporting plate, and the pressing plate and four screws are used for fixing to realize the purpose of press mounting; the position of the air knife is determined by a zero reference surface on the bracket, a spring provides proper pretightening force, and the sliding shaft is fixed by a locking screw, so that the air knife fixing block presses the air knife; the whole tool is not provided with a movable part which influences the relative position of the attack angle sensor body and the air knife, so that the zero position precision and consistency of the installed attack angle sensor are guaranteed.
Meanwhile, the support plate and the support are assembled into an integral structure, the positioning hole in the support plate and the zero-position reference surface in the support are machined once again after assembly forming, so that the position precision between the positioning hole in the support plate and the zero-position reference surface in the support is ensured, and the temperature reaches 0.003 ℃ in actual use through 3D scanning measurement and theoretical calculation. And the tool is simple in structure, solid in quality, durable and convenient to maintain.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a top view of the support plate and bracket of the present invention.
Fig. 3 is a front view of the support plate and bracket of the present invention.
Fig. 4 is a schematic structural view of the air knife fixing block of the present invention.
Fig. 5 is a schematic view of the overall structure of the platen of the present invention.
Fig. 6 is a schematic view of the overall structure of the left wall panel of the present invention.
Fig. 7 is a schematic view of the overall structure of the right wall panel of the present invention.
Reference numerals:
1-left side wall plate, 2-right side wall plate, 3-support plate, 4-bracket, 5-pressure plate, 6-air knife fixing block, 7-rectangular through hole, 8-mounting screw, 9-groove, 10-zero reference plane, 11-through hole, 12-sliding shaft, 13-matching surface, 14-spring, 15-locking screw, 16-circular opening, 17-rectangular groove, 18-positioning hole, 19-circular through hole and 20-threaded hole.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the embodiments of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only used for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or the first and second features being in contact, not directly, but via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
The following disclosure provides many different embodiments or examples for implementing different configurations of embodiments of the invention. To simplify the disclosure of embodiments of the invention, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit embodiments of the invention. Furthermore, embodiments of the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example one
As shown in fig. 1-7, the embodiment discloses an attack angle sensor positioning tool, which comprises a left side wall plate 1, a right side wall plate 2, a supporting plate 3, a bracket 4, a pressing plate 5 and a wind knife fixing block 6,
the supporting plate 3 is horizontally arranged, two ends of the supporting plate are respectively connected with the left side wall plate 1 and the right side wall plate 2 to form an H-shaped structure, and a rectangular through hole 7 is formed in the left side wall plate 1;
the pressing plate 5 is used for pressing and mounting the attack angle sensor on the supporting plate 3, and the pressing plate 5 is connected with the supporting plate 3 through a mounting screw 8;
a groove 9 is formed in the support 4, a zero reference surface 10 which is formed by machining and can be matched with an air knife of the attack angle sensor is arranged on the right side of the groove 9, and the bottom of the support 4 is connected with the support plate 3; at least two through holes 11 are formed in the left side of the support 4, each through hole 11 is provided with a sliding shaft 12 in a sliding mode, and the through holes 11 are communicated with the grooves 9;
the air knife fixing block 6 is positioned in the groove 9, a matching surface 13 capable of being matched with an air knife of the attack angle sensor is arranged on the right side of the air knife fixing block 6, the right end of the sliding shaft 12 is connected with the air knife fixing block 6, and the left end of the sliding shaft extends to the rectangular through hole 7;
each sliding shaft 12 is sleeved with a spring 14, and two ends of each spring 14 are respectively contacted with the side wall of the groove 9 of the bracket 4 and the air knife fixing block 6; a locking screw 15 for fixing the sliding shaft 12 is arranged on the bracket 4; circular openings 16 are formed in the supporting plate 3 and the pressing plate 5, and a rectangular groove 17 is formed in the pressing plate 5.
Wherein, the supporting plate 3 is provided with at least two positioning holes 18.
Wherein, be provided with three circular through-hole 19 on left side wallboard 1 and the right wallboard 2, be provided with screw hole 20 with circular through-hole 19 corresponding position department on the left and right wallboard on the backup pad 3, form the integral type structure after left and right wallboard and backup pad 3 pass through the screw assembly.
Preferably, the bottom of the bracket 4 is provided with two threaded holes 20, and the bracket 4 is fixed on the support plate 3 through screws.
The four corners of the pressing plate 5 are provided with through holes 11, the supporting plate 3 is provided with threaded holes 20 corresponding to the through holes 11, and the pressing plate 5 is connected with the supporting plate 3 through screws and then presses and installs the attack angle sensor on the supporting plate 3.
Further preferably, the air knife fixing block 6 is provided with a screw hole, and the end part of the sliding shaft 12 is connected with the screw hole in a matched mode.
The invention is further optimized in the following by combining the specific structures of the components:
in the present embodiment, it is preferred that,
three circular through holes 19 are distributed in the middle of the left side wall plate 1, and a rectangular through hole 7 is arranged at the left upper part;
three circular through holes 19 are distributed in the middle of the right wallboard 2; the three circular through holes 19 on the left and right wall boards correspond to each other;
the support plate 3 and the bracket 4 are assembled through two screws to form an integrated structure, a positioning hole 18, two threaded holes 20 for installing the bracket 4 and four through holes 11 for installing the pressing plate 5 are formed in the support plate 3, three threaded holes 20 for installing the left wall plate 2 and the right wall plate 2 are respectively formed in the left side and the right side, two threaded holes 20 are formed in the bottom of the bracket 4, a zero-position reference plane 10 formed by organic addition is arranged on the right side, two through holes 11 arranged on the left side are used for installing the sliding shaft 12, and in actual use, the number of the through holes 11 for installing the sliding shaft can be multiple, so that the stability in moving is improved;
the locking screw 15 is arranged in a locking screw mounting hole arranged on the bracket 4, and the arranged locking screw 15 is used for fixing the sliding shaft 12;
the air knife fixing block 6 is provided with a matching surface 13 formed by machining on the right side and two screw holes for fixedly connecting the sliding shaft 12 on the left side;
the end part of the sliding shaft 12 is provided with threads and can be matched with a screw hole arranged on the air knife fixing block 6;
the spring 14 is sleeved on the sliding shaft 12 and used for providing pre-tightening force required by fixing the air knife for the air knife fixing block 6;
the pressing plate 5 is provided with through holes 11 at the four corners, so that the pressing plate 5 is conveniently fixed on the supporting plate 3;
and mounting screws 8 for fixing the attack angle sensor to the support plate 3 through four through holes 11 on the pressure plate 5.
The invention mainly comprises a left side wallboard 1, a right side wallboard 2, a supporting plate 3, a bracket 4, a pressing plate 5, a wind knife fixing block 6 and other components, adopts a positioning hole 18 on the supporting plate 3 to determine the position of an attack angle sensor, and uses the pressing plate 5 and four screws for fixing to realize the purpose of press mounting; the position of the air knife is determined by a zero reference surface 10 on the bracket 4, a spring 14 provides proper pretightening force, and the sliding shaft 12 is fixed by a locking screw 15, so that the air knife fixing block 6 compresses the air knife; the whole tool is not provided with a movable part which influences the relative position of the attack angle sensor body and the air knife, so that the zero position precision and consistency of the installed attack angle sensor are guaranteed.
Meanwhile, the support plate 3 and the bracket 4 are assembled into an integral structure, the positioning hole 18 on the support plate 3 and the zero-position reference plane 10 on the bracket 4 are processed once again after being assembled and molded so as to ensure the position precision between the positioning hole 18 on the support plate 3 and the zero-position reference plane 10 on the bracket 4, and the position precision reaches 0.003 ℃ in actual use through 3D scanning measurement and theoretical calculation; and the tool is simple in structure, solid in quality, durable and convenient to maintain.
In order that those skilled in the art will be able to further understand the invention, the invention is further illustrated below with reference to specific methods of use:
the use method of the attack angle sensor positioning tool specifically comprises the following steps:
step 1: loosening the locking screw 15, pulling the sliding shaft 12 to push the air knife fixing block 6 to the left limit position of the groove 9, and fixing the sliding shaft 12 by using the locking screw 15;
and 2, step: placing an air knife of the attack angle sensor in the middle of the groove 9, aligning a positioning pin of the attack angle sensor with a positioning hole 18 arranged on the supporting plate 3, placing the attack angle sensor in the circular opening 16, and slowly pressing the attack angle sensor in place;
and step 3: a rectangular groove 17 of the pressure plate 5 penetrates through an air knife of the attack angle sensor, is placed on the surface of an installation disc of the attack angle sensor, and is pressed on the support plate 3 by using an installation screw 8;
and 4, step 4: fixing the air knife fixing block 6 by hand, slowly loosening the locking screw 15, enabling the air knife fixing block 6 to tightly press the air knife under the action of the pre-tightening force of the spring 14, then screwing the locking screw 15, and fixing the sliding shaft 12;
and 5: the tool is turned over by 180 degrees up and down, and zero adjustment and zero test of the angle of attack sensor can be realized after the angle of attack transmitter is connected to the electric test bench by a test cable.
The invention has the advantages of simple structure, convenient use, better zero confirmation of the attack angle sensor, measurement precision guarantee and accuracy improvement in practical use.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all changes and modifications that fall within the scope of the invention.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, it should be noted that any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (2)
1. The utility model provides an angle of attack sensor location frock which characterized in that: comprises a left side wall plate, a right side wall plate, a supporting plate, a bracket, a pressing plate and a wind knife fixing block,
the supporting plate is horizontally arranged, two ends of the supporting plate are respectively connected with the left side wall plate and the right side wall plate to form an H-shaped structure, and a rectangular through hole is formed in the left side wall plate;
the pressing plate is used for pressing and mounting the attack angle sensor on the supporting plate, and the pressing plate is connected with the supporting plate through mounting screws;
a groove is formed in the support, a zero reference surface which is formed by machining and can be matched with an air knife of the attack angle sensor is arranged on the right side of the groove, and the bottom of the support is connected with the supporting plate; at least two through holes are formed in the left side of the support, and each through hole is provided with a sliding shaft in a sliding mode;
the air knife fixing block is positioned in the groove, a matching surface capable of being matched with an air knife of the attack angle sensor is arranged on the right side of the air knife fixing block, the right end of the sliding shaft is connected with the air knife fixing block, and the left end of the sliding shaft extends to the rectangular through hole;
each sliding shaft is sleeved with a spring, and two ends of each spring are respectively contacted with the side wall of the groove of the bracket and the air knife fixing block; a locking screw for fixing the sliding shaft is arranged on the bracket; the supporting plate and the pressing plate are both provided with circular openings, and the pressing plate is provided with a rectangular groove;
two positioning holes are formed in the supporting plate;
three circular through holes are formed in the left side wall plate and the right side wall plate, threaded holes are formed in positions, corresponding to the circular through holes in the left side wall plate and the right side wall plate, of the supporting plate, and the left side wall plate and the right side wall plate are assembled with the supporting plate through screws;
the bottom of the bracket is provided with two threaded holes, and the bracket is fixedly arranged on the supporting plate through screws;
through holes are formed in the four corners of the pressing plate, threaded holes corresponding to the through holes are formed in the supporting plate, and the pressing plate is connected with the supporting plate through screws and then presses the attack angle sensor on the supporting plate;
the air knife fixing block is provided with a screw hole, and the end part of the sliding shaft is connected with the screw hole in a matching manner.
2. An application method of an attack angle sensor positioning tool is characterized by comprising the following steps of:
step 1: loosening the locking screw, pulling the sliding shaft to push the air knife fixing block to the left limit position of the groove, and fixing the sliding shaft by using the locking screw;
step 2: placing an air knife of the attack angle sensor in the middle of the groove, aligning a positioning pin of the attack angle sensor with a positioning hole arranged on the supporting plate, placing the attack angle sensor in the circular hole, and slowly pressing the attack angle sensor in place;
and step 3: the rectangular groove of the pressure plate penetrates through an air knife of the attack angle sensor, is placed on the surface of an installation disc of the attack angle sensor, and is pressed on the support plate by using an installation screw;
and 4, step 4: fixing the air knife fixing block by hand, slowly loosening the locking screw, enabling the air knife fixing block to tightly press the air knife under the action of the pre-tightening force of the spring, and then screwing the locking screw to fix the sliding shaft;
and 5: the tool is turned over by 180 degrees up and down, and zero adjustment and zero test of the angle of attack sensor can be realized after the angle of attack transmitter is connected to the electric test bench by a test cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110596159.4A CN113251261B (en) | 2021-05-30 | 2021-05-30 | Attack angle sensor positioning tool and using method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110596159.4A CN113251261B (en) | 2021-05-30 | 2021-05-30 | Attack angle sensor positioning tool and using method |
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| CN113251261A CN113251261A (en) | 2021-08-13 |
| CN113251261B true CN113251261B (en) | 2022-09-20 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208721124U (en) * | 2018-09-03 | 2019-04-09 | 珠海美利信新材料技术有限公司 | Steering engine mechanical zero demarcates test fixture |
| CN211234452U (en) * | 2020-01-19 | 2020-08-11 | 北京安达维尔科技股份有限公司 | Angle of attack sensor angle test fixture |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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