CN105203791A - Wrong-inserting preventing speed sensor - Google Patents
Wrong-inserting preventing speed sensor Download PDFInfo
- Publication number
- CN105203791A CN105203791A CN201510615712.9A CN201510615712A CN105203791A CN 105203791 A CN105203791 A CN 105203791A CN 201510615712 A CN201510615712 A CN 201510615712A CN 105203791 A CN105203791 A CN 105203791A
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- Prior art keywords
- rotor assembly
- misplug
- shift fork
- rotating shaft
- wrong
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Abstract
The invention discloses a wrong-inserting preventing speed sensor. A large bearing is located in the middle of a rotor assembly. A coil assembly and a magnetic conductor are installed on the rotor assembly. A small bearing is installed in an installation shaft of the rotor assembly. The magnetic conductor, a bearing pedestal, a gear ring and the rotor assembly are installed in a shell. A spring and a dust-proof ring are arranged on a rotating shaft of the rotor assembly in a sleeving mode and locate in a cavity in one end of the shell. A wrong-inserting preventing shifting fork is located on the outer side of the shell, fixed to the rotating shaft of the rotor assembly in a sleeving mode and located at the end provided with the spring. The end face of the rotating shaft is provided with a locking nut for fastening the wrong-inserting preventing shifting fork. The rotating shaft of the rotor assembly is in clearance fit with the wrong-inserting preventing shifting fork. A shifting rod carries out transmission in a shifting fork groove, and has the wrong-inserting preventing function. Installation test flight verifies that the shifting rod is installed free of displacement or disengagement in the test flight process.
Description
Technical field
The present invention relates to aircraft electronic anti-skid brake system (ABS) field, specifically a kind of speed pickup Anti-misplug structure.
Background technology
Along with electronic anti-skid braking system technical research application reaches its maturity, this system all installed by current most of aircraft, speed pickup is as a vitals of electronic anti-skid braking system, for the sinusoidal alternating voltage signal that control enclosure provides frequency to be directly proportional to wheel angular velocity, detect wheel speed for electronic anti-skid braking system.Conventional speed sensor is in actual installation process, trundle on wheel end-cap assembly may be arranged on outside wheel speed sensors shift fork mounting groove, in the installation of reality uses, just may speed pickup measuring-signal inaccurate cause brake fault, affect the normal work of electronic anti-skid braking system.As can be seen here, the reliability of speed pickup installation is to the normal work important of electronic anti-skid braking system.Through the inquiry patent No.: in CN201210002176.1 double-joint type four remaining wheel spin-up transducer, the principle of wheel spin-up transducer is identical with the present invention, but does not possess Anti-misplug function; The patent No.: CN1725017 rotation sensor, sensor and wheel hinging manner are that transmission shaft is connected, and mounting means comparatively the present invention is simple, does not possess Anti-misplug function.
Summary of the invention
For avoiding, because the collection causing rate signal not in place installed by speed pickup, affecting the deficiency of the normal work of electronic anti-skid braking system, the present invention proposes a kind of Anti-misplug speed pickup.
The present invention includes housing, dust ring, spring, large bearing, ring gear, rotor assembly, coil block, magnetic conductor and base, wherein: large bearing is positioned in the middle part of rotor assembly; Coil block and magnetic conductor are contained on rotor assembly; Little bearing is contained in the installation shaft of rotor assembly; Magnetic conductor, bearing seat, ring gear and rotor assembly all load in housing; Spring and dust ring are sleeved in the rotating shaft of described rotor assembly, and are arranged in the chamber of shell one end.It is characterized in that, the present invention also comprises Anti-misplug shift fork; Described Anti-misplug shift fork is positioned at the outside of housing, is set with and is fixed in the rotating shaft of described rotor assembly, and being positioned at the end that spring one end is housed; The set nut tightening up this Anti-misplug shift fork is installed at the end face of described rotating shaft.Be clearance fit between the rotating shaft of rotor assembly and Anti-misplug shift fork.
Described Anti-misplug shift fork one end is column structure, the keyway that cylinder end face is connected with rotor.Inside Anti-misplug shift fork loop configuration, uniform 4 are filled a groove.
In the present invention, macro-axis holds and is pressed on the left boss of rotor assembly, coil block and magnetic conductor are contained on rotor assembly, little bearing is pressed on the right boss of rotor assembly, ring gear and rotor assembly that coil block, magnetic conductor and bearing be housed are loaded in housing, reinstalls bearing seat, with friction top, bearing seat is compressed simultaneously, with straight pin, magnetic conductor, housing and bearing seat are fixed again, and tighten with swivel nut.Straight pin can prevent radial rotating between magnetic conductor, housing and bearing seat.And then load friction top and base.
The loading spring in the left chamber of housing and dust ring, and fix with circlip for hole.Spring action is on large outer race.Load onto Anti-misplug shift fork, with key, rotor assembly and shift fork radial direction are connected and fixed, with set nut by rotor assembly and shift fork axial locking.
Bearing inner ring and rotor assembly are interference fit, its objective is and ensure that through-drive is flexible.Outer shroud and bearing seat are clearance fit, and little bearing and large bearing installation form are swimming type, its objective is and ensure that outer shroud can move axially, and prevent rotor assembly stressed or extend after being heated, unlikely generation extra-stress and clamping stagnation.
Rotor assembly of the present invention is joined together by runner and axle, and drive unit axle connected on gear and wheel is meshed.Rotate together with rotor assembly when axle rotates under wheel drives, along with rotor assembly tooth and the relative of ring gear tooth with stagger, between cog magnetic resistance constantly changes, cause the change of magnetic flux, the magnetic flux of change responds to generation sine voltage signal on coil block, and the frequency of sinusoidal signal is directly proportional with wheel velocity of rotation.
The present invention has carried out Anti-misplug design for the structure composition of conventional speed sensor to shift fork.Anti-misplug shift fork is arranged on rotor assembly, is arranged on outside mounting groove for preventing wheel driving lever
Shift fork is loop configuration, and symmetric position has mounting groove, and mounting groove both sides are symmetrical semi-circular shape structure, and object prevents driving lever from deviating from from mounting groove.Two semicircular ring structures can prevent driving lever dress by mistake.
The present invention devises Anti-misplug shift fork on the basis of conventional speed sensor, Product Assembly is not affected, and does not cause harmful effect to whole product physical construction and performance index, and can ensure that driving lever carries out transmission in fork slot, low cost of manufacture, possesses error protection function.Anti-misplug structure speed pickup of the present invention, through installation Flight, can meet request for utilization, does not occur that driving lever is installed not in place or deviates from situation in the process of taking a flight test.
Accompanying drawing explanation
Fig. 1 is the structural representation of Anti-misplug speed pickup;
Fig. 2 is the structural representation of Anti-misplug shift fork, and wherein Fig. 2 a is front view, and Fig. 2 b is the side view of Fig. 2 a.
Fig. 3 is the structural representation of set nut, and wherein Fig. 3 a is front view, and Fig. 3 b is vertical view.
Fig. 4 is the schematic diagram of rotor assembly.
Fig. 5 is the shift fork schematic three dimensional views of prior art, and wherein Fig. 5 a is front view, and Fig. 5 b is side view.
Fig. 6 is the axonometric drawing of Fig. 2 a.
In figure:
1. Anti-misplug shift fork; 2. housing; 3. back-up ring; 4. dust ring; 5. spring; 6. large bearing; 7. ring gear; 8. rotor assembly; 9. coil block; 10. magnetic conductor; 11. straight pins; 12. bases; 13. swivel nuts; 14. friction tops; 15. bearing seats; 16. little bearings; 17. keys; 18. set nuts; 19. trundle slots.
Embodiment
The present embodiment is a kind of Anti-misplug speed pickup.
The present embodiment comprises Anti-misplug shift fork 1, housing 2, circlip for hole 3, dust ring 4, spring 5, large bearing 6, ring gear 7, rotor assembly 8, coil block 9, magnetic conductor 10, straight pin 11, base 12, swivel nut 13, friction top 14, bearing seat 15, little bearing 16, key 17, set nut 18.
In the present embodiment: large bearing 6 is pressed on the positioning boss in the middle part of rotor assembly 8, coil block 9 and magnetic conductor 10 are contained on rotor assembly 8, in the runner end face installation shaft that little bearing 16 is pressed into place in rotor assembly 8, ring gear 7 and rotor assembly 8 that coil block 9, magnetic conductor 10, large bearing 6 and little bearing 16 be housed are loaded in housing 2, reinstall bearing seat 15, with friction top 14, bearing seat 15 is compressed simultaneously, with straight pin 11, magnetic conductor 10, housing 2 and bearing seat 15 are fixed again, and tighten with swivel nut 13.Straight pin 11 can prevent radial rotating between magnetic conductor 9, housing 2 and bearing seat 15.And then load friction top 14 and base 12.
Spring 5 and dust ring 4 are sleeved in the rotating shaft of described rotor assembly, and are arranged in the chamber of housing 2 one end.By circlip for hole 3, described spring 5 is fixed.Spring 5 acts on large bearing 6 outer shroud.
Anti-misplug shift fork 1 is positioned at the outside of described housing 2, and is sleeved on the termination that spring 5 one end is equipped with in described rotating shaft; By key 17, this Anti-misplug shift fork 1 is fixed tightly in described rotating shaft, and at the end face of described rotating shaft, set nut 18 is installed.
Described Anti-misplug shift fork 1 is round sheet.The boss axially protruded is had on this Anti-misplug shift fork surface.The mounting hole coordinated with the rotating shaft of rotor assembly is had at the center of this Anti-misplug shift fork.Four punching point grooves are evenly equipped with at the circumferential surface of described mounting hole.On the excircle of described Anti-misplug shift fork, symmetry is distributed with two trundle slots 19 coordinated with the trundle on wheel end-cap assembly.Lightening grooves is had on described Anti-misplug shift fork surface.
Claims (2)
1. an Anti-misplug speed pickup, comprises housing, dust ring, spring, large bearing, ring gear, rotor assembly, coil block, magnetic conductor and base, wherein: large bearing is positioned in the middle part of rotor assembly; Coil block and magnetic conductor are contained on rotor assembly; Little bearing is contained in the installation shaft of rotor assembly; Magnetic conductor, bearing seat, ring gear and rotor assembly all load in housing; Spring and dust ring are sleeved in the rotating shaft of described rotor assembly, and are arranged in the chamber of shell one end; It is characterized in that, also comprise Anti-misplug shift fork; Described Anti-misplug shift fork is positioned at the outside of housing, is set with and is fixed in the rotating shaft of described rotor assembly, and being positioned at the end that spring one end is housed; The set nut tightening up this Anti-misplug shift fork is installed at the end face of described rotating shaft; Be clearance fit between the rotating shaft of rotor assembly and Anti-misplug shift fork.
2. a kind of Anti-misplug speed pickup as claimed in claim 1, it is characterized in that, described Anti-misplug shift fork one end is column structure, the keyway that cylinder end face is connected with rotor; Inside Anti-misplug shift fork loop configuration, uniform 4 are filled a groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510615712.9A CN105203791A (en) | 2015-09-24 | 2015-09-24 | Wrong-inserting preventing speed sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510615712.9A CN105203791A (en) | 2015-09-24 | 2015-09-24 | Wrong-inserting preventing speed sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105203791A true CN105203791A (en) | 2015-12-30 |
Family
ID=54951574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510615712.9A Pending CN105203791A (en) | 2015-09-24 | 2015-09-24 | Wrong-inserting preventing speed sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105203791A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730425A (en) * | 2018-05-07 | 2018-11-02 | 西安航空制动科技有限公司 | A kind of planetary structure for wheel spin-up transducer |
| CN108761116A (en) * | 2018-07-27 | 2018-11-06 | 西安航空制动科技有限公司 | A kind of hollow wheel spin-up transducer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3826109A (en) * | 1972-07-25 | 1974-07-30 | Goodyear Tire & Rubber | Cam positioned drive connector for rotor |
| GB2248907A (en) * | 1990-10-17 | 1992-04-22 | Aircraft Braking Systems Corp | Coupler for wheel speed transducer |
| US20040075022A1 (en) * | 2002-10-18 | 2004-04-22 | Mackness Robert F. | Wireless landing gear monitoring system |
| CN102565449A (en) * | 2012-01-05 | 2012-07-11 | 西安航空制动科技有限公司 | Double-section type four-redundancy airplane wheel velocity sensor |
| CN103803098A (en) * | 2014-02-13 | 2014-05-21 | 西安航空制动科技有限公司 | Airplane wheel speed simulation device |
-
2015
- 2015-09-24 CN CN201510615712.9A patent/CN105203791A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3826109A (en) * | 1972-07-25 | 1974-07-30 | Goodyear Tire & Rubber | Cam positioned drive connector for rotor |
| GB2248907A (en) * | 1990-10-17 | 1992-04-22 | Aircraft Braking Systems Corp | Coupler for wheel speed transducer |
| US20040075022A1 (en) * | 2002-10-18 | 2004-04-22 | Mackness Robert F. | Wireless landing gear monitoring system |
| CN102565449A (en) * | 2012-01-05 | 2012-07-11 | 西安航空制动科技有限公司 | Double-section type four-redundancy airplane wheel velocity sensor |
| CN103803098A (en) * | 2014-02-13 | 2014-05-21 | 西安航空制动科技有限公司 | Airplane wheel speed simulation device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730425A (en) * | 2018-05-07 | 2018-11-02 | 西安航空制动科技有限公司 | A kind of planetary structure for wheel spin-up transducer |
| CN108730425B (en) * | 2018-05-07 | 2021-12-03 | 西安航空制动科技有限公司 | Planetary structure for airplane wheel speed sensor |
| CN108761116A (en) * | 2018-07-27 | 2018-11-06 | 西安航空制动科技有限公司 | A kind of hollow wheel spin-up transducer |
| CN108761116B (en) * | 2018-07-27 | 2024-04-19 | 西安航空制动科技有限公司 | Speed sensor for hollow wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151230 |