CN108195406B - Opening and closing detection sensor of ground spoiler and installation and detection method thereof - Google Patents
Opening and closing detection sensor of ground spoiler and installation and detection method thereof Download PDFInfo
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- CN108195406B CN108195406B CN201711411848.3A CN201711411848A CN108195406B CN 108195406 B CN108195406 B CN 108195406B CN 201711411848 A CN201711411848 A CN 201711411848A CN 108195406 B CN108195406 B CN 108195406B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
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Abstract
The invention discloses a ground spoiler opening and closing detection sensor and an installation and detection method thereof, wherein the ground spoiler opening and closing detection sensor comprises a probe, wherein the periphery of the lower part of the probe is sleeved with an electric connector, the periphery of the upper part of the probe is fixedly sleeved with an installation support, and the installation surface of the installation support is a vertical surface; a boss is arranged at the top inside the probe, a circuit board assembly is fixed on the boss, and a Hall element is welded on the circuit board assembly; a magnetic target is arranged above the probe, and the lower surface of the magnetic target is parallel to the upper surface of the probe; and samarium cobalt magnetic steel is arranged on the magnetic target; the central line of the probe is superposed with the central line of the magnetic target; the circuit board assembly comprises an electromagnetic induction circuit and a switch conversion circuit. The opening or closing of the ground spoiler can be accurately detected, and the service life and the reliability of the detection device are improved.
Description
Technical Field
The invention belongs to the technical field of airplane ground spoiler actuator structures; in particular to a ground spoiler opening and closing detection sensor and an installation and detection method thereof.
Background
The ground spoiler opening and closing detection sensor is used for detecting the opening and closing states of each ground spoiler and transmitting the corresponding states to the flight control system in the form of analog voltage signals.
The ground spoiler is a key part for destroying the lift force of the airplane in the landing process of the airplane, and the ground spoiler actuator provides power for the opening and closing processes of the ground spoiler. Before taking off, a pilot needs to check that the opening and closing processes of the ground spoiler are smooth and the transmission of an opening and closing state signal is correct; in the air flight process, the ground spoiler must be kept in a closed state, and a state signal of the ground spoiler needs to be accurately transmitted to a flight control system in real time; the spoiler must be guaranteed to open smoothly during landing of the airplane, and a state signal is accurately transmitted to the flight control system.
At present, the opening and closing state detection device of the ground spoiler for the domestic aircraft is basically a contact type microswitch which is a mechanical pressing type, and a contact spring of the contact type microswitch is easy to lose efficacy and low in reliability from long-term application effects and user feedback results. The main reason is that the switch contact spring is in a pressed state for a long time, the pressure is relieved after the ground spoiler is opened, the spring cannot rebound in time, but the spring still outputs a closed state signal of the ground spoiler, and the flight mission is greatly influenced. In addition, the contact-type microswitch belongs to a pure mechanical structural part and has the defects of short service life, poor environmental adaptability, complex installation and debugging, inconvenient maintenance and the like.
Disclosure of Invention
The invention provides a ground spoiler opening and closing detection sensor and an installation and detection method thereof, which realize accurate detection of opening or closing of a ground spoiler and improve the service life and reliability of a detection device.
The technical scheme of the invention is as follows: a ground spoiler opening and closing detection sensor comprises a probe, wherein an electric connector is sleeved on the periphery of the lower part of the probe, an installation support is fixedly sleeved on the periphery of the upper part of the probe, and the installation surface of the installation support is a vertical surface; a boss is arranged at the top inside the probe, a circuit board assembly is fixed on the boss, and a Hall element is welded on the circuit board assembly; a magnetic target is arranged above the probe, and the lower surface of the magnetic target is parallel to the upper surface of the probe; and samarium cobalt magnetic steel is arranged on the magnetic target; the central line of the probe is superposed with the central line of the magnetic target; the circuit board assembly comprises an electromagnetic induction circuit and a switch conversion circuit.
Furthermore, the invention is characterized in that:
wherein the upper part of the probe fixes the mounting bracket by two thin nuts.
Wherein a double-lug stop sheet is arranged between the thin nut and the mounting bracket.
Wherein samarium cobalt magnet steel is inlayed in the recess on the magnetic target, or samarium cobalt magnet steel sets up the inside at the magnetic target.
Wherein the Hall element corresponds the setting with samarium cobalt magnet steel.
According to another technical scheme, the installation method of the detection sensor comprises the steps that the installation surface of an installation support is fixedly connected to a wing support arm through a plurality of fixing screws, and a magnetic target is fixedly connected to a ground spoiler box section through a plurality of fixing screws; and the lower surface of the magnetic target and the upper surface of the probe are parallel to each other with a gap.
Furthermore, the invention is characterized in that:
wherein the upper part of the probe fixes the mounting bracket through two thin nuts; and double lug stop pieces are arranged between the two thin nuts and the mounting bracket.
Another technical solution of the present invention is that the detecting method of the detecting sensor includes a method of detecting that the ground spoiler is opened from a closed state and a method of detecting that the ground spoiler is closed from an open state; the method for detecting the opening of the ground spoiler from the closing state is characterized in that the relative angular displacement of the probe and the magnetic target is gradually increased, the magnetic field intensity B sensed by the Hall element is reduced, and when the magnetic field intensity B is smaller than the magnetic induction intensity B of the overturning point output by the electromagnetic induction circuit when the magnetic induction intensity is reduced from large to smallRPThe output voltage of the electromagnetic induction circuit is converted from low level to high level and is transmitted to the switch conversion circuit, and the switch conversion circuit receives the voltage change from low level to high level and detects that the ground spoiler is opened from a closed state; the method for detecting the opening state to the closing state of the ground spoiler is characterized in that the relative angular displacement of the probe and the magnetic target is gradually reduced, the magnetic field intensity B sensed by the Hall element is increased, and when the magnetic field intensity B is greater than the magnetic induction intensity B of the output turning point of the electromagnetic induction circuit, the magnetic induction intensity B is increased from small to largeOPThe output voltage of the electromagnetic induction circuit is converted from high level to low level and is transmitted to the switch conversion circuit, and the switch conversion circuit receives the voltage change from high level to low level and detects that the ground spoiler is switched from an open state to a closed state.
Compared with the prior art, the invention has the beneficial effects that: the device can avoid the defects of poor reliability, difficult maintenance and short service life of the push-type microswitch; the device accurately measures angular displacement conversion between the magnetic target and the Hall element, converts electromagnetic variation into voltage signal variation and outputs the voltage signal variation through the electromagnetic induction circuit, and therefore the switch conversion circuit obtains the opening or closing state of the ground spoiler according to the voltage signal variation; (ii) a Meanwhile, the power loss of the sensor is less than 1W, so that stable and reliable ground spoiler state signals can be output in time, reliable reference data are provided for pilots, and the flight safety and reliability are improved; the sensor can avoid the defect of air false alarm, reduce the probability of flight accidents, and avoid the delay or return flight of the airplane caused by the false alarm.
Furthermore, the sensor is convenient to mount and easy to maintain by fixing the mounting device by the double-lug stop sheet and the thin nut; the method can be suitable for airplanes for detecting the on-off states of various ground spoilers, and is also suitable for detecting the relative angular displacement switching values of other structures.
The invention also has the following beneficial effects: the sensor is fixedly arranged between the wing support arm and the ground spoiler through the mounting bracket and the magnetic target, so that the sensor is mounted, and the sensor is simple to mount and convenient to maintain.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of the mounting structure of the present invention;
FIG. 4 is a diagram of the magnetoelectric conversion characteristics of the induction circuit of the present invention;
fig. 5 is a schematic diagram of the working principle of the present invention.
In the figure: 1 is a magnetic target; 2, a double-lug stop pad; 3 is a thin nut; 4 is a probe; 5 is an electric connector; 6 is a mounting bracket; 7 is samarium cobalt magnetic steel; 8 is a Hall element; 9 is a circuit board assembly; 10 is a ground spoiler box section; 11 is a wing support arm; 12 is a boss.
Detailed Description
The technical solution of the present invention is further explained with reference to the accompanying drawings and specific embodiments.
The invention provides a ground spoiler opening and closing detection sensor, which comprises a probe 4, wherein an electric connector 5 is sleeved on the periphery of the lower part of the probe 4, a mounting bracket 6 is fixedly sleeved on the periphery of the upper part of the probe 4, and the mounting bracket 6 is provided with a vertical mounting surface; the end part of the probe 4 is a horizontally arranged boss 12, a magnetic target 1 is arranged above the boss 12, the lower surface of the magnetic target 1 is arranged in parallel with the boss 12, and a certain gap is formed between the lower surface of the magnetic target 1 and the boss 12.
Wherein as shown in fig. 2, samarium cobalt magnet steel 7 is arranged on the magnetic target 1. Preferably, samarium cobalt magnet 7 is embedded in a groove on the magnetic target 1, or is disposed inside the magnetic target 1. A circuit board assembly 9 is fixed inside the boss 12, a Hall element 8 is welded on the circuit board assembly 9, and the Hall element 8 is arranged opposite to the samarium-cobalt magnetic steel 7; wherein the circuit board assembly 9 includes an electromagnetic induction circuit and a switching circuit.
Preferably, as shown in fig. 1 or 2, the probe 4 is further sleeved with two thin nuts 3, and the two thin nuts 3 are respectively arranged above and below the mounting bracket 6 and used for fixing the mounting bracket 6; and be provided with ears stop washer 2 between thin nut 3 and the installing support 6, ears stop washer 2 can prevent that installing support 6 from becoming flexible, and thin nut 3 can fasten installing support 6 through the helicitic texture.
The working principle of the detection sensor is as follows; as shown in fig. 5, the power supply voltage supplies power to the probe 4, the electromagnetic induction circuit and the switch conversion circuit after being filtered; when the Hall element 8 senses the relative angular displacement of the magnetic target 1, so that electromagnetic change is generated, the electromagnetic induction circuit converts the electromagnetic change into voltage change, whether the voltage change is the on or off state of the ground spoiler is determined through amplification and comparison, and the state of the voltage change is sent out through the switch conversion circuit to be checked by a pilot. The angular displacement of the magnetic target 1 is derived from the rotation of the ground spoiler around the shaft, so the magnetic target 1 needs to be installed on the ground spoiler for obtaining the angular displacement of the rotation.
The invention also provides an installation method of the detection sensor, as shown in fig. 3, a vertical installation surface of an installation support 6 is fixedly connected to a wing support arm 11 through a plurality of fixing screws, a magnetic target 1 is fixedly connected to a ground spoiler box section 10 through a plurality of fixing screws, and the lower surface of the magnetic target 1 is arranged in parallel with a boss 12. Two of the thin nuts 3 and corresponding binaural stops 2 are fastened to the upper and lower sides of the mounting bracket 6.
The invention also provides a detection method of the detection sensor, which comprises the following steps: the method comprises a method for detecting that the ground spoiler is opened from a closed state and a method for detecting that the ground spoiler is closed from an opened state.
The method for detecting the opening of the ground spoiler from the closing state comprises the steps that the relative angular displacement between the probe and the magnetic target is gradually increased, namely, in the process that the ground spoiler rotates around a shaft from the closing state to the opening state, the magnetic field intensity B sensed by the Hall element is reduced, and when the magnetic field intensity B is smaller than the magnetic induction intensity B of the output turning point of the electromagnetic induction circuit when the magnetic induction intensity is reduced from large to smallRPAs shown in FIG. 4, the output voltage of the electromagnetic induction circuit is changed from a low level VLTo a high level VHAnd is transmitted to the switching conversion circuit, which receives VLTo VHThe voltage change of the ground spoiler is detected to be opened from a closed state.
The method for detecting the opening state to the closing state of the ground spoiler comprises the steps that the relative angular displacement between the probe and the magnetic target is gradually reduced, the specific process that the ground spoiler rotates around a shaft to enable the ground spoiler to be in the opening state to the closing state is realized, the magnetic field intensity B sensed by the Hall element is increased, and when the magnetic field intensity B is larger than the magnetic induction intensity B of an output turning point of the electromagnetic induction circuit, the magnetic induction intensity B is increased from small to largeOPAs shown in FIG. 4, the output voltage of the electromagnetic induction circuit is changed from a high level VHTo a low level VLAnd is transmitted to the switching conversion circuit, which receives VHTo VLThe voltage change of the ground spoiler is detected to be switched from the open state to the closed state.
Claims (8)
1. The opening and closing detection sensor for the ground spoiler is characterized by comprising a probe (4), wherein an electric connector (5) is sleeved on the periphery of the lower part of the probe (4), an installation support (6) is fixedly sleeved on the periphery of the upper part of the probe (4), and the installation surface of the installation support (6) is a vertical surface; a boss (12) is arranged at the top inside the probe (4), a circuit board assembly (9) is fixed on the boss (12), and a Hall element (8) is welded on the circuit board assembly (9); a magnetic target (1) is arranged above the probe (4), and the lower surface of the magnetic target (1) is parallel to the upper surface of the probe (4); and samarium cobalt magnetic steel (7) is arranged on the magnetic target (1); the central line of the probe (4) is superposed with the central line of the magnetic target (1); the circuit board assembly (9) comprises an electromagnetic induction circuit and a switch conversion circuit.
2. The ground spoiler opening and closing detection sensor according to claim 1, wherein the upper part of the probe (4) fixes the mounting bracket (6) by means of two thin nuts (3).
3. The ground spoiler opening and closing detection sensor according to claim 2, characterized in that a binaural stop (2) is provided between the thin nut (3) and the mounting bracket (6).
4. The ground spoiler opening and closing detection sensor according to claim 1, characterized in that the samarium-cobalt-magnetic steel (7) is embedded in a groove on the magnetic target (1), or the samarium-cobalt-magnetic steel (7) is arranged inside the magnetic target (1).
5. The ground spoiler opening and closing detection sensor according to claim 4, characterized in that the Hall element (8) is arranged corresponding to samarium-cobalt-magnetic-steel (7).
6. The method for installing the opening and closing detection sensor of the ground spoiler of claim 1, characterized in that the installation surface of the installation bracket (6) is fixedly connected to the wing support arm (11) through a plurality of fixing screws, and the magnetic target (1) is fixedly connected to the ground spoiler box section (10) through a plurality of fixing screws; and the lower surface of the magnetic target (1) and the upper surface of the probe (4) are parallel to each other and have a gap.
7. The method for mounting a ground spoiler opening and closing detection sensor according to claim 6, wherein the upper part of the probe (4) fixes the mounting bracket (6) by two thin nuts (3); and a double-lug stop piece (2) is arranged between the two thin nuts (3) and the mounting bracket (6).
8. The method of claim 1, comprising the steps of detecting the opening of the floor spoiler from the closed state and detecting the opening of the floor spoiler from the open state;
the method for detecting the opening of the ground spoiler from the closing state is characterized in that the relative angular displacement between the probe (4) and the magnetic target (1) is gradually increased, the magnetic field intensity B sensed by the Hall element (8) is reduced, and when the magnetic field intensity B is smaller than the magnetic induction intensity B of the output turning point of the electromagnetic induction circuit when the magnetic induction intensity is reduced from large to smallRPThe output voltage of the electromagnetic induction circuit is converted from low level to high level and is transmitted to the switch conversion circuit, and the switch conversion circuit receives the voltage change from low level to high level and detects that the ground spoiler is opened from a closed state;
the method for detecting the opening state to the closing state of the ground spoiler is characterized in that the relative angular displacement between the probe (4) and the magnetic target (1) is gradually reduced, the magnetic field intensity B sensed by the Hall element (8) is increased, and when the magnetic field intensity B is greater than the magnetic induction intensity B of the electromagnetic induction circuit output turning point, the magnetic induction intensity B is increased from small to largeOPThe output voltage of the electromagnetic induction circuit is converted from high level to low level and is transmitted to the switch conversion circuit, and the switch conversion circuit receives the voltage change from high level to low level and detects that the ground spoiler is switched from an open state to a closed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711411848.3A CN108195406B (en) | 2017-12-23 | 2017-12-23 | Opening and closing detection sensor of ground spoiler and installation and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711411848.3A CN108195406B (en) | 2017-12-23 | 2017-12-23 | Opening and closing detection sensor of ground spoiler and installation and detection method thereof |
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| Publication Number | Publication Date |
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| CN108195406A CN108195406A (en) | 2018-06-22 |
| CN108195406B true CN108195406B (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711411848.3A Active CN108195406B (en) | 2017-12-23 | 2017-12-23 | Opening and closing detection sensor of ground spoiler and installation and detection method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4032087A (en) * | 1975-02-18 | 1977-06-28 | Cleaves Prentiss B | Aircraft spoiler system |
| JPH07117733A (en) * | 1993-10-27 | 1995-05-09 | Kanto Auto Works Ltd | Rear spoiler for automobile |
| US8909393B2 (en) * | 2013-04-16 | 2014-12-09 | Ge Aviation Systems Limited | Methods for predicting a speed brake system fault |
| CN104828154A (en) * | 2015-04-16 | 2015-08-12 | 浙江理工大学 | Adjustable spoiler device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6097596B2 (en) * | 2013-02-28 | 2017-03-15 | 三菱航空機株式会社 | Grand spoiler drive system and aircraft |
-
2017
- 2017-12-23 CN CN201711411848.3A patent/CN108195406B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4032087A (en) * | 1975-02-18 | 1977-06-28 | Cleaves Prentiss B | Aircraft spoiler system |
| JPH07117733A (en) * | 1993-10-27 | 1995-05-09 | Kanto Auto Works Ltd | Rear spoiler for automobile |
| US8909393B2 (en) * | 2013-04-16 | 2014-12-09 | Ge Aviation Systems Limited | Methods for predicting a speed brake system fault |
| CN104828154A (en) * | 2015-04-16 | 2015-08-12 | 浙江理工大学 | Adjustable spoiler device |
Non-Patent Citations (1)
| Title |
|---|
| 民机地面扰流板伸出自动控制逻辑研究及对飞行安全影响分析;肖飞;《民用飞机设计与研究》;20121231(第4期);第28-32页 * |
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