CN103029850A - Gear locking mechanism for magnetic suspension flywheel - Google Patents
Gear locking mechanism for magnetic suspension flywheel Download PDFInfo
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- CN103029850A CN103029850A CN2012105442076A CN201210544207A CN103029850A CN 103029850 A CN103029850 A CN 103029850A CN 2012105442076 A CN2012105442076 A CN 2012105442076A CN 201210544207 A CN201210544207 A CN 201210544207A CN 103029850 A CN103029850 A CN 103029850A
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Abstract
The invention discloses a gear locking mechanism for a magnetic suspension flywheel. The gear locking mechanism for the magnetic suspension flywheel comprises a motor drive unit (1), a right connecting rod (2), a right driving locking gear (3), a cover plate (4), four pinions (5), four driven locking gears (6), a left driving locking gear (7), a base (8) and a left connecting rod (9). According to the gear locking mechanism for the magnetic suspension flywheel, a design of the motor drive gear drive and locking mechanism is adopted, and thus, constant drive ratio can be ensured. The gear locking mechanism for the magnetic suspension flywheel is suitable for heavy-load drive and is compact in structure, smaller in axial dimension and light in weight; the efficiency reaches up to at least 90 percent, and the system design requirements are met. Meanwhile, a single-motor locking structure is adopted by the gear locking mechanism for the magnetic suspension flywheel, and therefore, the problem that individual gears cannot be locked due to error accumulation caused by processing and assembling is avoided.
Description
Technical field
The invention belongs to the spacecraft technology field, particularly a kind of wheel gear locking mechanism that is applicable to magnetically levitated flywheel.
Background technology
The inertia actuating unit is that the spacecraft platforms such as all kinds of satellites, space station carry out the generally core actuating unit of employing of attitude control institute, and magnetically levitated flywheel namely is a wherein important class.When spacecraft becomes rail, for the rotor that prevents flywheel disturbs Space Vehicle System, need rotor is locked, when entering the orbit work, also need remove original locking state.Catch gear is the gordian technique in the magnetically levitated flywheel, and reliability, volume, weight, power consumption etc. are had strict demand.
Realize locking and the release campaign of catch gear, way is to adopt memorial alloy the most intuitively.But it is large especially that memorial alloy need to pass to large electric current, power consumption, and service life is short, and safety factor is low, can not satisfy highly reliable, low-power consumption, repeats to lock, the designing requirement of release.
The pneuma-lock mechanism that " SPOT4 " satellite of in February, 1986 France emission adopts relies on the steel rope carbon fiber compressing gasbag of tying tight that flywheel is held tightly, chops steel rope off by priming system and realizes unlocking function.The advantage of this scheme is simple and reliable for structure, and shortcoming is because steel rope is flexible piece, in drawing high process plastic deformation can occur, and is difficult to resilience because steel rope produces distortion in the releasing process, the danger that easily generation can't release.Simultaneously, airbag structure is worked in vacuum environment, and compression, expansion phase are difficult to control, and safety factor is low.And can only use once, can not repeated usage, adopt fire attack product compulsive unlocking, in case the blast release will produce a large amount of superfluitys, affect the safety of spacecraft, this is definitely unallowable for magnetically levitated flywheel.
Summary of the invention
The objective of the invention is: overcome the prior art deficiency, a kind of highly reliable, lightweight, low-power consumption, the gear transmission that can repeat to lock, catch gear are provided.
Technical scheme of the present invention is that the magnetically levitated flywheel wheel gear locking mechanism comprises motor driver, right connecting rod, right active locking gear, cover plate, 4 miniature gearss, 4 driven locking gears, left active locking gear, base and left connecting rods; 10 supporting seats are arranged on the base, and right active locking gear, 4 miniature gearss, 4 driven locking gears and left active locking gear are installed on the supporting seat of base; Right active locking gear, left active locking gear and 4 driven locking gears are provided with flange, are used for matching with the locking slot of the inboard wheel rim of flywheel rotor; Cover plate is fastened on the base, has crescent shaped groove on the cover plate, and each locking gear is played position-limiting action; Right connecting rod is connected with motor driver with right active locking gear respectively by fixing screw; Left connecting rod is connected with motor driver with left active locking gear respectively by fixing screw.
Described motor driver comprises leading screw, right slide block, left slider, screw gear, shaft gear, motor gear, locking micro-switch, release micro-switch, motor and support; Described leading screw adopts the T-shaped screw thread of two sectional type, and two ends, the left and right sides are respectively minus thread and right-hand screw thread; The inner hole thread of left slider, right slide block cooperates with leading screw minus thread, right-hand screw thread respectively; The three grade speed reduction gearings of motor by being comprised of motor gear, shaft gear and screw gear drive the leading screw rotation.
The triple reduction gearing that described motor gear, shaft gear and screw gear form, its decelerating through motor ratio is 1: 200.
Described right active locking gear, 4 driven locking gears and left active locking gear adopt stainless steel material.
Flange on described right active locking gear, left active locking gear and 4 the driven locking gears has carried out sulphurization.
The present invention's advantage compared with prior art is:
(1) the present invention adopts motor-driven gear transmission, catch gear design, can guarantee constant ratio, be applicable to heavy lift transmission, compact conformation, and axial dimension is less, and quality is light, and efficient satisfies requirement of system design up to more than 90%.
(2) the present invention adopts single motor locking structure, has avoided the problem that causes indivedual locking gears to lock because of the error accumulation of processing, assembling formation.
(3) catch gear of the present invention has adopted leading screw, the T-shaped thread matching structure of slide block endoporus, in locking, releasing process, slide block can both be realized self-locking, holds flywheel tightly with the employing shell fragment, utilizes elastic force resilience realization locking, release to compare, and has improved safety factor.
(4) flange of each locking gear of the present invention adopts sulphurization, coated one deck polysulphide rubbers, after processing like this, can in being hit vibration processes, flywheel absorb a part of energy on the one hand, preloading in the time of can increasing locking gear flange and engagement on the other hand, the safety factor of increase flywheel locking state.
(5) locking gear of the present invention adopts corrosion-resistant steel (1Cr18Ni9Ti), has satisfied the requirement of flywheel band magnetic environment design, and locking gear is after optimizing, and thickness only has 8mm, and quality is low weight, meets design requirement.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is motor driver structural representation of the present invention;
Fig. 3 is workflow block diagram of the present invention.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, the magnetically levitated flywheel wheel gear locking mechanism comprises motor driver 1, right connecting rod 2, right active locking gear 3, cover plate 4,4 miniature gearss 5,4 driven locking gears 6, left active locking gear 7, base 8, left connecting rod 9 and 4 fixing screws 10.
10 supporting seats are arranged on the base 8, and right active locking gear 3,4 miniature gearss 5,4 driven locking gears 6 and left active locking gear 7 are installed on the supporting seat.The endoporus of each gear and the cylindrical of each supporting seat adopt free-running fit, guarantee that each gear can freely rotate on supporting seat 10.
Right active locking gear 3, left active locking gear 7 and 4 driven locking gears 6 are provided with flange, are used for matching with the locking slot of the inboard wheel rim of rotor, on each flank of tooth tommy are installed.After each locking gear and miniature gears install, with cover plate 4 by screw fastening on base 8, on the cover plate 4 crescent shaped groove is arranged, the tommy on each locking gear is played position-limiting action.
Right active locking gear 3,4 driven locking gears 6 and left active locking gear 7 adopt stainless steel material, are 1Cr18Ni9Ti in the present embodiment.Satisfied the requirement of flywheel band magnetic environment design, locking gear is after optimizing, and thickness only has 8mm, and quality is low weight, meets design requirement.
As shown in Figure 2, described motor driver 1 comprises leading screw 1-1, right slide block 1-2, left slider 1-3, screw gear 1-4, shaft gear 1-5, motor gear 1-6, locking micro-switch 1-7, release micro-switch 1-8, motor 1-9 and support 1-10; The endoporus of the upper screw thread of the outside thread of leading screw 1-1 and right slide block 1-2, left slider 1-3 cooperates.Motor driver 1 of the present invention can satisfy that rotor room interior space dimension is little, the designing requirement of system low-power consumption.
Right connecting rod 2 is connected with left slider 1-3 in the motor driver 1 with right active locking gear 3 respectively by fixing screw 10; Left connecting rod 9 is connected with right slide block 1-2 in the motor driver 1 with left active locking gear 7 respectively by fixing screw 10.Fixing screw 10 plays connection function on the one hand, can guarantee that on the other hand right connecting rod 2, left connecting rod 9, left active locking gear 7 and right active locking gear 3 freely rotate.
Leading screw 1-1 of the present invention adopts the T-shaped screw thread of two sectional type, and two ends, the left and right sides are respectively minus thread and right-hand screw thread, and the inner hole thread of left slider 1-3, right slide block 1-2 cooperates with leading screw minus thread, right-hand screw thread respectively.In the course of the work, the three grade speed reduction gearings of motor 1-9 by being comprised of motor gear 1-6, shaft gear 1-5, screw gear 1-4 drive leading screw 1-1 rotation, and left slider 1-3, right slide block 1-2 are converted into straight-line motion with the circular movement of leading screw 1-1.Because what leading screw 1-1 adopted is T-shaped screw thread, can guarantee the slide block self-locking during motor stop motion, adopts this design, designing requirement that can self-locking when satisfying system and quitting work.
Consider that general motor output speed is large, therefore the characteristics that moment of torsion is little need the design gear speed reduction gearing with the reduction rotating speed, thereby realize increasing the purpose of driving torque.The triple reduction gearing that the present invention is comprised of motor gear 1-6, shaft gear 1-5, screw gear 1-4, the decelerating through motor ratio is 1: 200, as calculated, when the output torque was 1Nm, motor power consumption only was 30 watts, because power consumption is little, selected gas-distributing motor size is less, solved the system space size limited, so that motor driver 1 layout hard problem satisfies the designing requirement of system low-power consumption, the output of high moment of torsion.
The present invention has carried out sulphurization to each locking gear flange, namely coats one deck rubber at the locking gear flange.After processing like this, can absorb a part of energy in the locking state rotor is hit vibration processes on the one hand, preloading in the time of can increasing rotor wheel rim and engagement on the other hand increases the safety factor that rotor is locked.
Design crescent at described cover plate 4, its effect guarantees that mechanism is circle distribution at front 6 the locking gear flanges of locking, each locking gear coupling mechanism force homogenizing on the one hand; In releasing process, avoid on the other hand locking gear revolution and rotor shaft to collide, play spacing effect.This mechanism design is simple, without any additional structure.
Before the work of the present invention, need to return to zero, concrete steps are: starter motor 1-9, make motor 1-9 counter-rotating (regulation makes gear realize that the motor steering of locking motion is forward), by motor gear 1-6, shaft gear 1-5, the triple reduction gearing that screw gear 1-4 forms drives leading screw 1-1 and rotates, make right slide block 1-2, left slider 1-3 slides to the inside, drag right connecting rod 2, left connecting rod 9, thereby drive right active locking gear 3, left active locking gear 7 rotates, by miniature gears 5, rotation is passed to 4 driven locking gears 6, slide block 1-2 touches release micro-switch 1-8, the motor stop motion realizes " zeroing ".
As shown in Figure 3, working process of the present invention was divided into for four steps, and key step is as follows:
(1) locking process: plugged, motor 1-9 passes through by motor gear 1-6, shaft gear 1-5, three grades of speed reduction gearings that screw gear 1-4 forms, drive leading screw 1-1 rotation, left slider 1-3 on the leading screw 1-1, right slide block 1-2 axially moves to midway location along leading screw 1-1, left slider 1-3, right slide block 1-2 affects left connecting rod 9, right connecting rod 2, and drive respectively right active locking gear 1-3, left active locking gear 1-7 rotates, by 4 miniature gears 5 transmissions, drive all the other each driven locking gears 6 and rotate, each locking gear flange and rotor wheel rim inboard groove are done gear motion.
(2) maintain the lock status: motor 1-9 works on, left slider 1-3, right slide block 1-2 axially continue to move to midway location along leading screw 1-1, right slide block 1-2 touches locking micro-switch 1-7, motor 1-9 stops, this moment, each locking gear flange and rotor recesses were meshed, and the self-locking of dependence leading screw 1-1 and slide block 1-2,1-3 keeps the locking state of each locking gear and rotor.
(3) releasing process: reverse drive motor 1-9, motor 1-9 passes through by motor gear 1-6, shaft gear 1-5, three grades of speed reduction gearings that screw gear 1-forms, drive leading screw 1-1 contrarotation, right slide block 1-2, left slider 1-3 does disengaging movement along leading screw 1-1 axial direction to both sides, right slide block 1-2, left slider 1-3 affects respectively left connecting rod 9, right connecting rod 2, left connecting rod 9, right connecting rod 2 drives respectively left active locking gear 1-7, right active locking gear 1-3 rotates, by 4 miniature gears 5 transmissions, drive 4 driven locking gears 6 and rotate, each locking gear flange and rotor wheel rim inboard groove are done disengaging movement.
(4) keep released state: motor 1-9 works on, left slider 1-3, right slide block 1-2 axially continue to move to midway location along leading screw 1-1, right slide block 1-2 touches release micro-switch 1-8, motor 1-stops 9, and the self-locking of dependence leading screw 1-1 and slide block 1-2,1-3 keeps the released state of each locking gear and rotor.
After tested, catch gear of the present invention can guarantee constant ratio, be applicable to heavy lift transmission, compact conformation, and axial dimension is less, and quality is light, and efficient satisfies requirement of system design up to more than 90%.
Above content is in conjunction with concrete preferred case study on implementation detailed description made for the present invention, can not assert that implementation of the present invention only limits to these explanations.For those skilled in the art; without departing from the inventive concept of the premise; in the situation that do not change its function, the equivalent transformation that carries out or substitute also falls into protection scope of the present invention to each constituent elements of the present invention, position relationship and connection mode.
The content of not describing in detail in the specification sheets of the present invention belongs to those skilled in the art's known technology.
Claims (5)
1. the magnetically levitated flywheel wheel gear locking mechanism is characterized in that: comprise motor driver (1), right connecting rod (2), right active locking gear (3), cover plate (4), 4 miniature gearss (5), 4 driven locking gears (6), left active locking gear (7), base (8) and left connecting rod (9); 10 supporting seats are arranged on the base (8), and right active locking gear (3), 4 miniature gearss (5), 4 driven locking gears (6) and left active locking gear (7) are installed on the supporting seat of base (8); Right active locking gear (3), left active locking gear (7) and 4 driven locking gears (6) are provided with flange, are used for matching with the locking slot of the inboard wheel rim of flywheel rotor; Cover plate (4) is fastened on the base (8), and cover plate has crescent shaped groove on (4), and each locking gear is played position-limiting action; Right connecting rod (2) is connected 1 with right active locking gear (3) with motor driver respectively by fixing screw (10)) be connected; Left connecting rod (9) is connected 1 with left active locking gear (7) with motor driver respectively by fixing screw (10)) be connected.
2. according to claim 1 magnetically levitated flywheel wheel gear locking mechanism, it is characterized in that: described motor driver (1) comprises leading screw (1-1), right slide block (1-2), left slider (1-3), screw gear (1-4), shaft gear (1-5), motor gear (1-6), locking micro-switch (1-7), release micro-switch (1-8), motor (1-9) and support (1-10); Described leading screw (1-1) adopts the T-shaped screw thread of two sectional type, and two ends, the left and right sides are respectively minus thread and right-hand screw thread; The inner hole thread of left slider (1-3), right slide block (1-2) cooperates with leading screw minus thread, right-hand screw thread respectively; The three grade speed reduction gearings of motor (1-9) by being comprised of motor gear (1-6), shaft gear (1-5) and screw gear (1-4) drive leading screw (1-1) rotation.
3. according to claim 2 magnetically levitated flywheel wheel gear locking mechanism, it is characterized in that: the triple reduction gearing that described motor gear (1-6), shaft gear (1-5) and screw gear (1-4) form, its decelerating through motor ratio is 1: 200.
4. according to claim 1 magnetically levitated flywheel wheel gear locking mechanism, it is characterized in that: described right active locking gear (3), 4 driven locking gears (6) and left active locking gear (7) adopt stainless steel material.
5. according to claim 1 magnetically levitated flywheel wheel gear locking mechanism, it is characterized in that: the flange on described right active locking gear (3), left active locking gear (7) and 4 the driven locking gears (6) has carried out sulphurization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210544207.6A CN103029850B (en) | 2012-12-11 | 2012-12-11 | Gear locking mechanism for magnetic suspension flywheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210544207.6A CN103029850B (en) | 2012-12-11 | 2012-12-11 | Gear locking mechanism for magnetic suspension flywheel |
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| Publication Number | Publication Date |
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| CN103029850A true CN103029850A (en) | 2013-04-10 |
| CN103029850B CN103029850B (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210544207.6A Active CN103029850B (en) | 2012-12-11 | 2012-12-11 | Gear locking mechanism for magnetic suspension flywheel |
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| Country | Link |
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| CN (1) | CN103029850B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112141368A (en) * | 2020-09-04 | 2020-12-29 | 中国空间技术研究院 | Electric screw locking mechanism |
| CN112196898A (en) * | 2020-10-14 | 2021-01-08 | 珠海格力电器股份有限公司 | Magnetic suspension rotor locking device, magnetic suspension system and control method |
| CN112781869A (en) * | 2020-12-29 | 2021-05-11 | 于同仁 | Automobile engine flywheel gear detection equipment |
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| CN101367439A (en) * | 2008-09-19 | 2009-02-18 | 北京航空航天大学 | Repeatable locking device |
| CN101670891A (en) * | 2009-09-25 | 2010-03-17 | 北京航空航天大学 | Locking mechanism with repeatable and emergent compulsive unlocking function |
| CN101792024A (en) * | 2010-03-03 | 2010-08-04 | 北京航空航天大学 | Lever-type repeatable locking device for magnetically suspended flywheel |
| CN102530268A (en) * | 2011-08-02 | 2012-07-04 | 中国人民解放军国防科学技术大学 | Air bag type flywheel locking and unlocking device |
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2012
- 2012-12-11 CN CN201210544207.6A patent/CN103029850B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101367439A (en) * | 2008-09-19 | 2009-02-18 | 北京航空航天大学 | Repeatable locking device |
| CN101670891A (en) * | 2009-09-25 | 2010-03-17 | 北京航空航天大学 | Locking mechanism with repeatable and emergent compulsive unlocking function |
| CN101792024A (en) * | 2010-03-03 | 2010-08-04 | 北京航空航天大学 | Lever-type repeatable locking device for magnetically suspended flywheel |
| CN102530268A (en) * | 2011-08-02 | 2012-07-04 | 中国人民解放军国防科学技术大学 | Air bag type flywheel locking and unlocking device |
Non-Patent Citations (1)
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| 刘强等: "磁悬浮飞轮用可重复抱式锁紧装置", 《光学精密工程》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112141368A (en) * | 2020-09-04 | 2020-12-29 | 中国空间技术研究院 | Electric screw locking mechanism |
| CN112196898A (en) * | 2020-10-14 | 2021-01-08 | 珠海格力电器股份有限公司 | Magnetic suspension rotor locking device, magnetic suspension system and control method |
| CN112196898B (en) * | 2020-10-14 | 2021-10-08 | 珠海格力电器股份有限公司 | Magnetic suspension rotor locking device, magnetic suspension system and control method |
| CN112781869A (en) * | 2020-12-29 | 2021-05-11 | 于同仁 | Automobile engine flywheel gear detection equipment |
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| CN103029850B (en) | 2015-07-08 |
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Effective date of registration: 20161008 Address after: 100000, No. 3, North Road, Yongfeng industrial base, Beijing, Haidian District Patentee after: China Aerospace Times Electronics Co., Ltd. Address before: 100854 Yongding Road, Beijing, No. 50, No. Patentee before: Beijing Xinghua Machinery Factory |
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Effective date of registration: 20190311 Address after: Room 205, 2nd floor, 6th building, 8th courtyard, Haixin Road, Daxing District, Beijing 102600 Patentee after: Beijing Aerospace Xinghua Technology Co., Ltd. Address before: No. 3 Yongjie North Road, Yongfeng Industrial Base, Haidian District, Beijing 100000 Patentee before: China Aerospace Times Electronics Co., Ltd. |