CN101637658A - Electric retractable undercarriage of prototype aircraft - Google Patents
Electric retractable undercarriage of prototype aircraft Download PDFInfo
- Publication number
- CN101637658A CN101637658A CN200910041370A CN200910041370A CN101637658A CN 101637658 A CN101637658 A CN 101637658A CN 200910041370 A CN200910041370 A CN 200910041370A CN 200910041370 A CN200910041370 A CN 200910041370A CN 101637658 A CN101637658 A CN 101637658A
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- undercarriage
- gear
- brake bar
- reduction gearing
- motor
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Abstract
The invention discloses an electric retractable undercarriage of a prototype aircraft and aims at providing an electric retractable undercarriage of a prototype aircraft with simple mounting, convenient use and high safety. The electric retractable undercarriage comprises a support (1) and an undercarriage fork (2). The support (1) is internally provided with a circuit board (3), a motor (4), a gear set (5), a driving bearing (6), a driving screw (7) and a brake bar (8), the motor (4) is electrically connected with the circuit board (3), an output shaft of the motor (4) is connected with an input end of the gear set (5), one end of the driving screw (7) is matched with the driving bearing (6) and penetrates the driving bearing (6) to be connected with an output end of the gear set (5), thedriving screw (7) is movably matched with the brake bar (8), the undercarriage fork (2) is provided with a matching groove (22), and the brake bar (8) is in fit with the matching groove (22). The electric retractable undercarriage of the prototype aircraft can be widely used in the prototype aircraft field.
Description
Technical field
The present invention relates to a kind of electric retractable undercarriage of prototype aircraft.
Background technology
Along with the progress of science and technology, people's living standard improves constantly, to the also lifting day by day of requirement of quality of life; The horn of plenty daily life, more and more people are ready to take time, spend in money, the hobby of putting into oneself of spending a lot of time and energy and go, wherein majority have deep interest to the various aircrafts of countries in the world, yet the condition of field observation, the various prototypes of impression is very limited, therefore, the object that various artificial model airplanes have just become people's collections, enjoied, this provides vast market to various simulation model toys, and artificial model airplane gos deep in numerous fans' the life gradually.And the consumer is also more and more higher to the requirement of artificial model airplane, to the current model of an airplane no matter be in shape or on layout, all require to accomplish true to nature as much as possible.Undercarriage is must indispensable accessory on the model of an airplane, wants to use the undercarriage that can be as true aircraft not only can receive but also can put at the model of an airplane, and be not a nothing the matter.At present, the deployable and collapsible undercarriage of using on the existing model of an airplane has two kinds, first kind is the drawing operation of landing gear of steering wheel, as shown in Figure 1, its stretching that provides power to pass through steel wire 02 by steering wheel 01 realizes the folding and unfolding of undercarriage, though its structure is simple, but because its stretching by steel wire 02 could realize folding and unfolding, steel wire 02 length is longer, and difficulty is very big when installing, and is difficult for realizing, and the internal structure of the model of an airplane need be made steel wire 02 and being stepped down, therefore can the layout of model of an airplane inside be impacted, the operation of landing gear of this structure is eliminated gradually, now is used less; Existing another kind of operation of landing gear is the pneumatic type operation of landing gear, as shown in Figure 2, the operation of landing gear of this structure utilizes the control transferring power of gas cylinder 04 (or cylinder) by various air valves to realize the folding and unfolding of undercarriage, therefore, adopt the pneumatic type operation of landing gear just must on the model of an airplane, carry gas cylinder 04 (or cylinder) and various switch valve, cause its annex more thus, install, use inconvenient, increased the overall weight of the model of an airplane simultaneously, and its security is relatively poor, the situation in case gas cylinder 04 (or cylinder) and each air valve leak air, when the model of an airplane lands, power gear down can't be provided, cause the direct landing of fuselage then can cause model of an airplane major injury even scrap; Adopt the cost of pneumatic operation of landing gear higher in addition.
In sum, existing model of an airplane undercarriage exists and is difficult for installing, using inconvenience, the relatively poor technological deficiency of security.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, and a kind of electric retractable undercarriage of prototype aircraft simple and easy, easy to use, safe of installing is provided.
The technical solution adopted in the present invention is: the present invention includes support, the undercarriage fork, described undercarriage fork is arranged at described internal stent by the fork axle, described undercarriage fork is fixedly connected with the wheel assembly, described internal stent also is provided with wiring board, motor, gear train, drive bearing, drive screw, brake bar, described motor is electrically connected with described wiring board, the output shaft of described motor connects the input of described gear train, match with described drive bearing in one end of described drive screw, and pass described drive bearing and be connected with the output of described gear train, described drive screw cooperates with described brake bar is movable, described undercarriage fork has mating groove, and described brake bar and described mating groove are suitable.
Described support is divided into left socle and the right support that cooperatively interacts, the madial wall of described left socle, right support correspondence is provided with motor slot, gear grooved, bearing groove, circuit board slot, described motor, gear train, drive bearing, wiring board are installed respectively, the madial wall of described left socle and right support also is provided with the brake bar guide rail, and the both ends of described brake bar are suitable with the brake bar guide rail of described left socle and right support respectively.
Described brake bar is set with metal inserted piece, and institute's metal inserted piece is provided with internal thread, and described brake bar matches with described drive screw by described metal inserted piece.
Described wheel assembly comprises spring steel wire, wheel shaft, wheel, and described spring steel wire is installed on the described wheel shaft with vertical connection of described wheel shaft end, described wheel, and the other end of described wheel shaft is combined with the internal tooth packing ring.
Both ends, described wiring board bottom surface are provided with two little switches that touch, and described little switch that touches is electrically connected with described wiring board.
Described gear train comprises input gear, reduction gearing, output gear, reduction gearing axle, described reduction gearing is divided into gear wheel, pinion, described reduction gearing matches with described reduction gearing axle, the two ends of described reduction gearing axle are fixedly set in the cell wall of described gear grooved, described input gear is meshed with the output shaft secure fit of described motor and with the gear wheel of described reduction gearing, and described output gear is meshed with the end secure fit of described drive screw and with the pinion of described reduction gearing.
The cooperation place of described drive screw and described output gear evenly scribbles anoxic glue.
The invention has the beneficial effects as follows: internal stent is provided with motor described in the present invention, gear train, drive screw, brake bar, produce power by described motor, through being transferred to described drive screw after the described gear train deceleration, described drive screw rotates and makes brake bar produce axial displacement, thereby providing power to make described undercarriage fork is that the axle center rotates with described fork axle, realize the folding and unfolding of described undercarriage thus, the present invention is simple in structure, compact overall structure, be easy to install, easy to operate, use electronic control, improve safety in utilization, effectively overcome drawing operation of landing gear of existing steering wheel and pneumatic type operation of landing gear difficulty is installed, use inconvenience and the low defective of security, and effectively reduce cost of manufacture.
Description of drawings
Fig. 1 is the existing drawing operation of landing gear structural representation of steering wheel;
Fig. 2 is existing pneumatic type operation of landing gear structural representation;
Fig. 3 is a structural representation of the present invention;
Fig. 4 is an exploded perspective view of the present invention;
Fig. 5 is a left socle structural representation of the present invention;
Fig. 6 is a gear up status architecture schematic diagram of the present invention;
Fig. 7 is a gear down status architecture schematic diagram of the present invention.
The specific embodiment
Shown in Fig. 3～5, the present invention includes support 1, undercarriage fork 2, described support 1 is divided into left socle 11 and the right support 12 that cooperatively interacts, Tong Guo screw 19 between described left socle 11 and the described right support 12 is fastening, described left socle 11, the madial wall of right support 12 correspondences is provided with motor slot 13, gear grooved 14, bearing groove 15, circuit board slot 16, described undercarriage fork 2 is arranged at described support 1 inside by fork axle 21, described left socle 11, right support 12 has axis hole 18 and matches with the both ends of described fork axle 21, and described undercarriage fork 2 is fixedly connected with the wheel assembly; Described support 1 inside also is provided with wiring board 3, motor 4, gear train 5, drive bearing 6, drive screw 7, brake bar 8, and described wiring board 3, motor 4, gear train 5, drive bearing 6 are installed on described circuit board slot 16, motor slot 13, gear grooved 14, bearing groove 15 respectively; Both ends, described wiring board 3 bottom surface are provided with two little switches 31 that touch, described little touch switch 31 be electrically connected with described wiring board 3 with the transmission signal running status of described motor 4 is controlled, described little distance of touching between the switch 31 is the stroke that described brake bar 8 slides on described drive screw 7; Described motor 4 is electrically connected by the silica gel line with described wiring board 3, described wiring board 3 is connected with controller outside by power outlet and holding wire, the output shaft of described motor 4 connects the input of described gear train 5, match with described drive bearing 6 in one end of described drive screw 7, and pass described drive bearing 6 and be connected with the output of described gear train 5, described brake bar 8 is set with metal inserted piece 81, in the present embodiment, the described metal inserted piece 81 preferential brass mold inserts that adopt, institute's metal inserted piece 81 is provided with internal thread, described brake bar 8 cooperates by described metal inserted piece 81 and described drive screw 7 are movable mutually, described undercarriage fork 2 has mating groove 22, and described brake bar 8 and described mating groove 22 are suitable; The madial wall of described left socle 11 and right support 12 also is provided with brake bar guide rail 17, the both ends of described brake bar 8 are suitable with the brake bar guide rail 17 of described left socle 11 and right support 12 respectively, and described brake bar guide rail 17 can ensure described brake bar 8 smooth sliding.Described gear train 5 comprises input gear 51, reduction gearing 52, output gear 53, reduction gearing axle 54, described reduction gearing 54 is divided into gear wheel, pinion, described reduction gearing 52 matches with described reduction gearing axle 54, the two ends of described reduction gearing axle 54 are fixedly set in the cell wall of described gear grooved 14, described input gear 51 is meshed with the output shaft secure fit of described motor 4 and with the gear wheel of described reduction gearing 54, described output gear 53 is meshed with the end secure fit of described drive screw 7 and with the pinion of described reduction gearing 54, described drive screw 7 evenly scribbles anoxic glue with the cooperation place of described output gear 53, and is tight to guarantee two, secure fit.
In the course of work, electric retractable undercarriage of prototype aircraft of the present invention provides control signal and by receiver signal is transferred to described wiring board 3 by controller outside, thereby the duty of described motor 4 is controlled; As: when the signal of wiring board as described in receiver is transferred to 3 is 1700us, described motor 4 beginning forward rotation, drive the gear wheel of described reduction gearing 52 by the described input gear 51 of described motor 4 output shafts cooperation, pinion by described reduction gearing 52 drives described output gear 53 again, thereby described drive screw 7 is rotated, cooperation by screw thread promote described brake bar 8 along the brake bar guide rail 17 of described left socle 11 and right support 12 to sliding away from the direction of described motor 4, in the process that described brake bar 8 slides by with the contacting of described mating groove 22, promote described undercarriage fork 2, making described undercarriage fork 2 is that center of circle generation is rotated counterclockwise with described fork axle 21, when described brake bar 8 touches when touching switch 31 away from described motor 4 little, described little signal that switch 31 has been packed up to controller outside transmission undercarriage by described wiring board 3 that touches, at this moment, described motor 4 stops operating, the arc surface of described brake bar 8 bottoms is just in time pushed down the flat surface of described undercarriage fork 2, finish the process of packing up of undercarriage thus, as shown in Figure 6.
When the signal that is transferred to described wiring board 3 when receiver is 1300us, described motor 4 beginning backward rotation, drive the gear wheel of described reduction gearing 52 by the described input gear 51 of described motor 4 output shafts cooperation, pinion by described reduction gearing 52 drives described output gear 53 again, thereby described drive screw 7 is rotated, cooperation by screw thread promotes described brake bar 8 and slides to the direction near described motor 4 along the brake bar guide rail 17 of described left socle 11 and right support 12, thereby in the process that described brake bar 8 slides by promoting described undercarriage fork 2 with contacting of described mating groove 22, making described undercarriage fork 2 is that center of circle generation turns clockwise with described fork axle 21, when described brake bar 8 touches when touching switch 31 near described motor 4 little, described little signal that switch 31 has put down to controller outside transmission undercarriage by described wiring board 3 that touches, at this moment, described motor 4 stops operating, the arc surface of described brake bar 8 bottoms is just in time pushed down another flat surface of described undercarriage fork 2, finish the process of putting down of undercarriage thus, as shown in Figure 7.
In the present embodiment, the useful signal of controlling described motor 4 is 1300us and 1700us, and the signal of giving when receiver is during less than 1300us or greater than 1700us, and electronic undercarriage is not done any action, can effectively play a protective role to the model of an airplane thus.
The present invention can be widely used in model of an airplane field.
Claims (7)
1, electric retractable undercarriage of prototype aircraft, comprise support (1), undercarriage fork (2), described undercarriage fork (2) is arranged at described support (1) inside by fork axle (21), described undercarriage fork (2) is fixedly connected with the wheel assembly, it is characterized in that: described support (1) inside also is provided with wiring board (3), motor (4), gear train (5), drive bearing (6), drive screw (7), brake bar (8), described motor (4) is electrically connected with described wiring board (3), the output shaft of described motor (4) connects the input of described gear train (5), match with described drive bearing (6) in one end of described drive screw (7), and pass described drive bearing (6) and be connected with the output of described gear train (5), described drive screw (7) cooperates with described brake bar (8) is movable, described undercarriage fork (2) has mating groove (22), and described brake bar (8) is suitable with described mating groove (22).
2, electric retractable undercarriage of prototype aircraft according to claim 1, it is characterized in that: described support (1) is divided into left socle (11) and the right support (12) that cooperatively interacts, described left socle (11), the madial wall that right support (12) is corresponding is provided with motor slot (13), gear grooved (14), bearing groove (15), circuit board slot (16), described motor (4) is installed respectively, gear train (5), drive bearing (6), wiring board (3), the madial wall of described left socle (11) and right support (12) also is provided with brake bar guide rail (17), and the both ends of described brake bar (8) are suitable with the brake bar guide rail (17) of described left socle (11) and right support (12) respectively.
3, electric retractable undercarriage of prototype aircraft according to claim 1 and 2, it is characterized in that: described brake bar (8) is set with metal inserted piece (81), described metal inserted piece (81) is provided with internal thread, and described brake bar (8) matches with described drive screw (7) by described metal inserted piece (81).
4, electric retractable undercarriage of prototype aircraft according to claim 1 and 2, it is characterized in that: described wheel assembly comprises spring steel wire (91), wheel shaft (92), wheel (93), described spring steel wire (91) and described wheel shaft (92) the vertical connection of end, described wheel (93) is installed on the described wheel shaft (92), and the other end of described wheel shaft (92) is combined with internal tooth packing ring (94).
5, electric retractable undercarriage of prototype aircraft according to claim 1 and 2 is characterized in that: described wiring board (3) both ends, bottom surface are provided with two little switches (31) that touch, and described little switch (31) that touches is electrically connected with described wiring board (3).
6, electric retractable undercarriage of prototype aircraft according to claim 5, it is characterized in that: described gear train (5) comprises input gear (51), reduction gearing (52), output gear (53), reduction gearing axle (54), described reduction gearing (54) is divided into gear wheel, pinion, described reduction gearing (52) matches with described reduction gearing axle (54), the two ends of described reduction gearing axle (54) are fixedly set in the cell wall of described gear grooved (14), described input gear (51) is meshed with the output shaft secure fit of described motor (4) and with the gear wheel of described reduction gearing (54), and described output gear (53) is meshed with the end secure fit of described drive screw (7) and with the pinion of described reduction gearing (54).
7, electric retractable undercarriage of prototype aircraft according to claim 6 is characterized in that: described drive screw (7) evenly scribbles anaerobic adhesive with the cooperation place of described output gear (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100413709A CN101637658B (en) | 2009-07-24 | 2009-07-24 | Electric retractable undercarriage of prototype aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100413709A CN101637658B (en) | 2009-07-24 | 2009-07-24 | Electric retractable undercarriage of prototype aircraft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101637658A true CN101637658A (en) | 2010-02-03 |
| CN101637658B CN101637658B (en) | 2011-07-20 |
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ID=41612957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100413709A Expired - Fee Related CN101637658B (en) | 2009-07-24 | 2009-07-24 | Electric retractable undercarriage of prototype aircraft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101637658B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011147161A1 (en) * | 2010-05-25 | 2011-12-01 | Hou Xuebin | Alighting gear structure for model airplanes |
| CN102961879A (en) * | 2012-12-04 | 2013-03-13 | 东莞市索立得模型科技有限公司 | Electronic contraction and release device |
| CN108020397A (en) * | 2017-12-13 | 2018-05-11 | 国网浙江省电力有限公司经济技术研究院 | A kind of power transmission tower frame model in wind tunnel and its installation method |
| CN108905228A (en) * | 2018-06-04 | 2018-11-30 | 天津津研机械设计有限公司 | A kind of electric retractable undercarriage of prototype aircraft |
| CN109107188A (en) * | 2018-09-21 | 2019-01-01 | 德施普科技发展温州有限公司 | A kind of undercarriage for the model of an airplane |
| CN110153129A (en) * | 2019-05-25 | 2019-08-23 | 温州德诺科技有限公司 | A kind of outer vacuum cleaner of full-automatic rotary bottle |
| CN112224389A (en) * | 2020-10-09 | 2021-01-15 | 南京航空航天大学 | Retractable main landing gear capable of meeting requirements of different specifications and layouts |
-
2009
- 2009-07-24 CN CN2009100413709A patent/CN101637658B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011147161A1 (en) * | 2010-05-25 | 2011-12-01 | Hou Xuebin | Alighting gear structure for model airplanes |
| CN102961879A (en) * | 2012-12-04 | 2013-03-13 | 东莞市索立得模型科技有限公司 | Electronic contraction and release device |
| CN102961879B (en) * | 2012-12-04 | 2014-12-17 | 东莞市索立得模型科技有限公司 | Electronic contraction and release device |
| CN108020397A (en) * | 2017-12-13 | 2018-05-11 | 国网浙江省电力有限公司经济技术研究院 | A kind of power transmission tower frame model in wind tunnel and its installation method |
| CN108020397B (en) * | 2017-12-13 | 2024-04-12 | 国网浙江省电力有限公司经济技术研究院 | Wind tunnel test model of power transmission tower and installation method thereof |
| CN108905228A (en) * | 2018-06-04 | 2018-11-30 | 天津津研机械设计有限公司 | A kind of electric retractable undercarriage of prototype aircraft |
| CN108905228B (en) * | 2018-06-04 | 2020-06-09 | 天津津研机械设计有限公司 | Electric retractable landing gear of model airplane |
| CN109107188A (en) * | 2018-09-21 | 2019-01-01 | 德施普科技发展温州有限公司 | A kind of undercarriage for the model of an airplane |
| CN109107188B (en) * | 2018-09-21 | 2020-11-24 | 五河县纬立农业科技有限公司 | Undercarriage for model airplane |
| CN110153129A (en) * | 2019-05-25 | 2019-08-23 | 温州德诺科技有限公司 | A kind of outer vacuum cleaner of full-automatic rotary bottle |
| CN112224389A (en) * | 2020-10-09 | 2021-01-15 | 南京航空航天大学 | Retractable main landing gear capable of meeting requirements of different specifications and layouts |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101637658B (en) | 2011-07-20 |
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