CN204832234U - Hall magnetic induction type wheel speedtransmitter - Google Patents
Hall magnetic induction type wheel speedtransmitter Download PDFInfo
- Publication number
- CN204832234U CN204832234U CN201520454331.2U CN201520454331U CN204832234U CN 204832234 U CN204832234 U CN 204832234U CN 201520454331 U CN201520454331 U CN 201520454331U CN 204832234 U CN204832234 U CN 204832234U
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- China
- Prior art keywords
- magnet steel
- steel seat
- hall
- wheel
- magnetic induction
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Abstract
The utility model discloses a hall magnetic induction type wheel speedtransmitter, including installing response subassembly and the magnet steel seat subassembly on the wheel, the response subassembly passes through screw A to be fixed on the undercarriage, the magnet steel seat subassembly passes through screw B and installs on the terminal surface of wheel, a plug and tail annex be equipped with on the response subassembly respectively, the relative terminal surface of response subassembly and magnet steel seat subassembly is provided with the clearance, and the size in its clearance is adjusted with the thickness that sets up the adjusting washer B inside the wheel in the adjusting washer A of wheel terminal surface through setting up. The utility model discloses a set up the clearance in magnet steel seat subassembly and response subassembly axial to to sensor output signal's influence when avoiding receiving vibration, impact and acceleration etc. Anti -interference because of the aircraft, utilize the magnetoelectric conversion mode of the magnet steel change of the hall components and parts response magnet steel seat in the response subassembly simultaneously, the signal transmission is accurate, and the reliability is high, and speedtransmitter output signal is stable.
Description
Technical field
The utility model belongs to airplane antiskid braking technical field, relates to a kind of speed pickup, specifically relates to a kind of Hall holds magnetic induction type wheel spin-up transducer.
Background technology
Along with the development of aircraft industry, have the various brake system annexes of material impact to seem more and more important to aircraft safety, wheel spin-up transducer all installed by aircraft nearly all at present.Wheel spin-up transducer, as a vitals of brake system, also producing for detecting wheel speed the frequency signal be directly proportional to wheel speed, being supplied to brake-control box or flight-control computer.By brake-control box or flight-control computer, according to frequency, how many and reference velocity compares, and determines whether braking.As can be seen here, the quality of wheel braking speed pickup, directly affects the quality of airplane brake system.
But, the speed pickup of conventional braking system is generally inertial sensor, this sensor is made up of flywheel, ball, lining, volute spring, push rod and rocking arm, pull bar, oil-feed needle-valve and needle-valve of draining the oil, undertaken anti-skidding by induction negative angle acceleration, this structure mainly adopts mechanical component, there is the features such as reliability is high, logic control is simple, but there is complex structure not easily to process, dynamic response is low, measuring accuracy is low, product, without remaining, easily produces Single Point of Faliure and the low deficiency of braking efficiency.
For overcoming the deficiency existing for conventional braking system employing sensor, on the aircraft that anti-skid brake system (ABS) is housed, excitation wheel spin-up transducer, permanent-magnet type airplane wheel speed sensor are generally housed at present, such as, publication number is that the Chinese patent of CN102495228B discloses a kind of permanent-magnet type airplane wheel speed sensor.Its stators and rotators assembly is installed in the endoporus of stator; The rotating shaft of rotor assembly is arranged in the axis hole of shell one end by thin bearing and ball bearing; Magnet steel seat is arranged in housing; Coil block is arranged in the endoporus of magnet steel seat; Permanent-magnet alloy is arranged in the endoporus of coil block.The number of teeth of runner is identical with the number of teeth of stator, and has gap between the tooth top surface of stator and the tooth top surface of runner.When the initial position that stator and runner cooperatively interact, the tooth top of stator is relative with the tooth top of runner; When runner rotates, along with the change of stator and runner relative position, the magnetic gap between stator and runner forms the change that convex-concave is staggered.This speed pickup does not need external power source, and control flexibly, response is fast, is convenient to aircraft and gathers rate signal, processes, pilot is conveniently operated; But excitation wheel spin-up transducer and permanent-magnet type airplane wheel speed sensor all need dead man on wheel (or gear) fork with dynamic sensor (or fluted disc) to rotate, and speed pickup could output signal.When the dead man (or gear) of speed pickup is with fork (or fluted disc) engagement rotation, because of the factor such as vibration, impact and the acceleration impact that aircraft engine produces, therefore the output signal of excitation wheel spin-up transducer and permanent-magnet type airplane wheel speed sensor is unstable, and antijamming capability is low.
In sum, existing wheel spin-up transducer in use finds under the environment such as the vibration of aircraft experience, impact and acceleration, the antijamming capability of wheel spin-up transducer is low, output signal is unstable, affect brake-control box or flight-control computer to the judgement of wheel rate signal, cause brake inaccurate for opportunity.Therefore how to avoid the factor impacts such as the vibration because aircraft engine produces, impact and acceleration, velocity transducer output signal is stablized, and is current Aircraft Anti-skid Break Control field problem demanding prompt solution.
Utility model content
The purpose of this utility model is, for the deficiency existing for existing excitation wheel spin-up transducer and permanent-magnet type airplane wheel speed sensor, to provide a kind of Hall holds magnetic induction type wheel spin-up transducer.Thus the factor impact such as vibration, impact and acceleration avoided because aircraft engine produces but the phenomenon of velocity transducer output signal instability.
The utility model is achieved by following technical solution.
A kind of Hall holds magnetic induction type wheel spin-up transducer, comprise and be arranged on inductive component on wheel and magnet steel seat assembly, undercarriage is provided with in wheel, described inductive component is fixed on undercarriage by screw A, described magnet steel seat assembly is arranged on the end face of wheel by screw B, described inductive component is equipped with respectively a slotting head and tail annex.
The opposing end surface of described inductive component and magnet steel seat assembly is provided with gap, and the size in its gap is regulated with the thickness of the adjustment packing ring B being arranged at wheel inside by the adjustment packing ring A being arranged at wheel end face.
Described inductive component is made up of Hall subassembly, cover plate, housing and power panel, and wherein Hall subassembly is fixed by screws in housing after being connected with power panel by wire, and cover plate is fixed on housing by screw C.
Described wire solder welds mutually with the pad on power panel and Hall subassembly, and cable welds mutually with the pad on power panel, forms integrated circuit.
Described magnet steel seat assembly is made up of magnet steel seat and magnet steel, and the inside circumference of magnet steel seat is evenly equipped with some circular holes, and magnet steel is arranged in circular hole respectively.
Described magnet steel and magnet steel seat are integrated by splicing.
Described magnet steel is right cylinder, and is carved with N pole and S pole respectively on cylindrical two end faces, and S pole is outside circular hole.
Circular hole on described magnet steel and magnet steel seat is clearance fit, and fills in gap and fix with anaerobic adhesive.
The beneficial effects of the utility model are:
Compared with prior art, the utility model is by axially arranging gap at magnet steel seat assembly and inductive component, and two assemblies do not contact, can avoid because aircraft is vibrated, impact and acceleration etc. anti-interference time impact on sensor output signal.Utilize the magnetoelectricity transformation mode that the magnet steel of the Hall components and parts inductive magnetic steel seat in inductive component changes, signal transmission is more accurate, and reliability is higher, and velocity transducer output signal is stablized simultaneously.
The utility model is by being arranged in the small sircle hole of housing by permanent magnet, and control mode is simple, reliable, is convenient to aircraft and carries out acquisition and processing to rate signal.Product usable range is wide, and the life-span is long, highly sensitive, and output characteristics is reliable and stable, has compact conformation, and convenient disassembly is easy to maintenance, the features such as low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of magnet steel seat assembly in the utility model;
Fig. 3 is the structural representation of inductive component in the utility model.
In figure: 1-inductive component, 2-screw A, 3-wheel, 4-magnet steel seat assembly, 5-screw B, 6-undercarriage, 7-adjusts packing ring A, 8-adjusts packing ring B, 9-plug, 10-tail annex, 11-magnet steel seat, 12-magnet steel, 13-Hall subassembly, 14-cover plate, 15-screw C, 16-housing, 17-power panel, 18-cable, 19-wire.
Embodiment
The technical solution of the utility model is further described below in conjunction with accompanying drawing, but described in claimed scope is not limited to.
As shown in Figure 1 to Figure 3, a kind of Hall holds magnetic induction type wheel spin-up transducer described in the utility model, comprise and be arranged on inductive component 1 on 3 and magnet steel seat assembly 4, undercarriage 6 is provided with in wheel 3, described inductive component 1 is fixed on undercarriage 6 by screw A2, described magnet steel seat assembly 4 is arranged on by screw B5 on the end face of wheel 3, described inductive component 1 is equipped with respectively a plug 9 and tail annex 10.Power to inductive component 1 by plug 9.Magnet steel seat assembly 4 in the technical program and inductive component 1 are arranged on wheel 3 and undercarriage 6 respectively by screw, packing ring, form contactless structure.Two assemblies do not contacted, can avoid because aircraft is vibrated, impact and acceleration etc. is anti-interference time impact on sensor output signal.
The opposing end surface of described inductive component 1 and magnet steel seat assembly 4 is provided with gap, and the size in its gap is regulated with the thickness of the adjustment packing ring B8 being arranged at wheel 3 inside by the adjustment packing ring A7 being arranged at wheel 3 end face.Adopt this technical scheme, inductive component 1 do not contacted with the opposing end surface of magnet steel seat assembly 4, can avoid because aircraft is vibrated, impact and acceleration etc. is anti-interference time impact on sensor output signal.
Described inductive component 1 is made up of Hall subassembly 13, cover plate 14, housing 16 and power panel 17, and wherein Hall subassembly 13 is fixed by screws in housing 16 after being connected with power panel 17 by wire 19, and cover plate 14 is fixing on housing 16 by screw C15.By cover plate 14, Hall subassembly 13 and power panel 17 are enclosed in housing 16.Described power panel 17 is also connected with cable 18, and cable 18 is caused outside housing 16 by housing 16.For connecting external power source.
Described wire 19 solder welds mutually with the pad on power panel 17 and Hall subassembly 13, and cable 18 welds mutually with the pad on power panel 17, forms integrated circuit.
Described magnet steel seat assembly 4 is made up of magnet steel seat 11 and magnet steel 12, and the inside circumference of magnet steel seat 11 is evenly equipped with some circular holes, and magnet steel 12 is arranged in circular hole respectively.
Described magnet steel 12 is integrated by splicing with magnet steel seat 11.
Described magnet steel 12 is right cylinder, and is carved with N pole and S pole respectively on cylindrical two end faces, and S pole is outside circular hole.Make magnet steel 12 through Hall subassembly 13 sensitive surface, trigger Hall subassembly 13.
Described magnet steel 12 is clearance fit with the circular hole on magnet steel seat 11, and fills in gap and fix with anaerobic adhesive.
In technique scheme, all with packing ring on the screw of fixing each assembly.
The utility model operationally, passes to operating voltage to inductive component 1, and when the magnetic field that magnet steel seat assembly 4 is formed is just to Hall subassembly 13 sensitive surface, Hall subassembly 13 exports a voltage signal; When Hall subassembly 13 sensitive surface is departed from the magnetic field that magnet steel seat assembly 4 is formed, Hall subassembly 13 exports a voltage signal.Two voltage signals are not identical, pass to by cable 18 speed state that brake-control box or flight-control computer judge wheel.Adopt the magnetic field of magnet steel formation as the triggering medium of inductive component, realize non-contact type signal transmission.Adopt Hall subassembly to carry out voltage transitions to changes of magnetic field, realize signal and export.
The utility model utilizes Hall integrated circuit to respond to the periodic motion of permanent magnet, through a series of circuit conversion, the motion of permanent magnet is converted to have at output circuit and is proportional to the frequency of permanent magnet number and rotary speed, the telltale of waveform, structurally permanent magnet does not contact with Hall integrated circuit, thus the factor impact such as vibration, impact and acceleration avoided because aircraft engine produces, the phenomenon of velocity transducer output signal instability is produced.
Claims (8)
1. a Hall holds magnetic induction type wheel spin-up transducer, it is characterized in that: comprise and be arranged on inductive component (1) on wheel (3) and magnet steel seat assembly (4), undercarriage (6) is provided with in wheel (3), described inductive component (1) is fixed on undercarriage (6) by screw A (2), described magnet steel seat assembly (4) is arranged on the end face of wheel (3) by screw B (5), described inductive component (1) is equipped with respectively a plug (9) and tail annex (10).
2. a kind of Hall holds magnetic induction type wheel spin-up transducer according to claim 1, it is characterized in that: the opposing end surface of described inductive component (1) and magnet steel seat assembly (4) is provided with gap, the size in its gap is regulated by the adjustment packing ring A (7) that is arranged at wheel (3) end face and the thickness that is arranged at the inner adjustment packing ring B (8) of wheel (3).
3. a kind of Hall holds magnetic induction type wheel spin-up transducer according to claim 1, it is characterized in that: described inductive component (1) is made up of Hall subassembly (13), cover plate (14), housing (16) and power panel (17), wherein Hall subassembly (13) is fixed by screws in housing (16) after being connected with power panel (17) by wire (19), cover plate (14) is fixed on housing (16) by screw C (15), described power panel (17) is also connected with cable (18).
4. a kind of Hall holds magnetic induction type wheel spin-up transducer according to claim 3, it is characterized in that: described wire (19) solder welds mutually with the pad on power panel (17) and Hall subassembly (13), cable (18) welds mutually with the pad on power panel (17), forms integrated circuit.
5. a kind of Hall holds magnetic induction type wheel spin-up transducer according to claim 1, it is characterized in that: described magnet steel seat assembly (4) is made up of magnet steel seat (11) and magnet steel (12), the inside circumference of magnet steel seat (11) is evenly equipped with some circular holes, and magnet steel (12) is arranged in circular hole respectively.
6. a kind of Hall holds magnetic induction type wheel spin-up transducer according to claim 5, is characterized in that: described magnet steel (12) and magnet steel seat (11) are integrated by splicing.
7. a kind of Hall holds magnetic induction type wheel spin-up transducer according to claim 5, is characterized in that: described magnet steel (12) is right cylinder, and is carved with N pole and S pole respectively on cylindrical two end faces, and S pole is outside circular hole.
8. a kind of Hall holds magnetic induction type wheel spin-up transducer according to claim 5, is characterized in that: the circular hole on described magnet steel (12) and magnet steel seat (11) is clearance fit, and fills in gap and fix with anaerobic adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520454331.2U CN204832234U (en) | 2015-06-29 | 2015-06-29 | Hall magnetic induction type wheel speedtransmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520454331.2U CN204832234U (en) | 2015-06-29 | 2015-06-29 | Hall magnetic induction type wheel speedtransmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204832234U true CN204832234U (en) | 2015-12-02 |
Family
ID=54689820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520454331.2U Withdrawn - After Issue CN204832234U (en) | 2015-06-29 | 2015-06-29 | Hall magnetic induction type wheel speedtransmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204832234U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897922A (en) * | 2015-06-29 | 2015-09-09 | 贵州新安航空机械有限责任公司 | Non-contact Hall magnetic induction-type airplane wheel speed sensor |
| CN108801290A (en) * | 2018-06-05 | 2018-11-13 | 江西中船航海仪器有限公司 | A kind of easy-maintaining waterproof Hall odometer |
| CN110398608A (en) * | 2019-06-24 | 2019-11-01 | 贵州新安航空机械有限责任公司 | A kind of structure improving velocity sensor installation reliability |
-
2015
- 2015-06-29 CN CN201520454331.2U patent/CN204832234U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897922A (en) * | 2015-06-29 | 2015-09-09 | 贵州新安航空机械有限责任公司 | Non-contact Hall magnetic induction-type airplane wheel speed sensor |
| CN104897922B (en) * | 2015-06-29 | 2017-12-05 | 贵州新安航空机械有限责任公司 | A kind of contactless Hall magnetic induction type wheel spin-up transducer |
| CN108801290A (en) * | 2018-06-05 | 2018-11-13 | 江西中船航海仪器有限公司 | A kind of easy-maintaining waterproof Hall odometer |
| CN110398608A (en) * | 2019-06-24 | 2019-11-01 | 贵州新安航空机械有限责任公司 | A kind of structure improving velocity sensor installation reliability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151202 Effective date of abandoning: 20171205 |