CN203558204U - Pulley and slide conversion mechanism for unmanned aerial vehicle - Google Patents
Pulley and slide conversion mechanism for unmanned aerial vehicle Download PDFInfo
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- CN203558204U CN203558204U CN201320508997.2U CN201320508997U CN203558204U CN 203558204 U CN203558204 U CN 203558204U CN 201320508997 U CN201320508997 U CN 201320508997U CN 203558204 U CN203558204 U CN 203558204U
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- skid
- hole
- switch rack
- wheel
- unmanned plane
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Abstract
The utility model relates to a pulley and slide conversion mechanism for an unmanned aerial vehicle. The pulley and slide conversion mechanism comprises four supporting rods (1) in two groups, spring damping rods (2), aerial vehicle wheels (3), conversion frames (4), slides (5) and an elastic rope (8), wherein the supporting rods are arranged below an aerial vehicle body in a left-right symmetry manner and in a splayed shape relative to a longitudinal axis of the aerial vehicle body; one end of each spring damping rod (2) is hinged to the middle of the aerial vehicle body (13) by virtue of a hinging shaft, and the other end of each spring damping rod (2) is connected with the corresponding conversion frame (4) by virtue of a spring damping rod hole (14); the aerial vehicle wheels (3) with aerial vehicle wheel shafts (7) are arranged in through holes (9) of the conversion frames (4). The mechanism is designed for realizing landing of the slides and realizing short-distance braking and landing by virtue of large friction resistance between the slides and a runway during landing.
Description
Technical field
The utility model relates to a kind of unmanned plane recovery technology, is specifically related to the switching mechanism of a kind of unmanned plane pulley skid.
Background technology
Along with the continuous expansion of modern unmanned plane demand and deepening continuously of cost concept, except unmanned target drone, most unmanned planes are executing after task, all by different modes, land recycling more fully to realize its value.But traditional unmanned plane adopts wheeled landing to reclaim, ground drag is less, ground run distance is longer, and direction control accuracy is not high, the impact of the site factors that landed in actual job process, often there is the situation of UAV Landing collision obstacle, cause the damage of unmanned plane.
Summary of the invention
In view of more than, technical problem to be solved in the utility model is to provide one and realizes pulley and take off, the mechanism of skid landing, reduce landing run, accurately control the sliding direction of running, avoid the situation of UAV Landing collision obstacle, cause the damage of unmanned plane.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: the switching mechanism of a kind of unmanned plane pulley skid, comprises strut bar, spring shock absorption bar, wheel, switch rack, skid and stretch cord; Described strut bar 1 has four, with respect to the longitudinal axis of fuselage, be and be symmetrical set, each side there are two, the one end that is positioned at the described strut bar of a side connects respectively the front and rear of described skid, one end is connected to fuselage bottom in addition, and the symmetrically arranged two groups of strut bars in the left and right sides are the setting of Eight characters shape below fuselage; Described spring shock absorption bar one end is hinged on waist by hinge, and the other end connects on described switch rack by linking springs decoupling rod hole; With the wheel of wheel axle, be arranged in the through hole passing for wheel on described switch rack.
Further, described spring shock absorption bar inner core is provided with spring; Described switch rack bilateral symmetry has two projections, and " J " shape groove sliding for described wheel axle is set at bossing; The two ends of described wheel axle are through described " J " shape groove being arranged in the projection of described switch rack both sides; Also comprise circumgyration stretch axle, on described switch rack, be provided with circumgyration stretch axis hole, rotating being fixed on described circumgyration stretch axis hole in one end of described circumgyration stretch axle, described wheel axle is rotatably connected through the end of " J " shape groove and other one end of described circumgyration stretch axle; Described circumgyration stretch axle inside is provided with retractor device; Described skid is arranged on the bottom of described switch rack, is provided with the consistent skid through hole of through hole passing for described wheel with described switch rack bottom, the through hole alignment on described skid through hole and described switch rack in the middle of it; Described skid is divided into two-layer, and upper strata is the framework of being made by iron plate, and lower floor is made by high-abrasive material, and front end has perk; Described switch rack two side bottoms are provided with for described stretch cord one end and pass and fixing base apertures, in described " J " shape groove upper end, be provided with the upper end hole passing for other one end of described stretch cord, described stretch cord is fixed on described wheel axle through after described upper end hole.
The beneficial effects of the utility model are: provide one to realize pulley and take off, the mechanism of skid landing, reduces landing run, accurately control the sliding direction of running, and avoid the situation of UAV Landing collision obstacle, cause the damage of unmanned plane.
Accompanying drawing explanation
Fig. 1 is the skid switching mechanism of the utility model unmanned plane pulley and fuselage mounting structure schematic diagram;
Fig. 2 is switch rack structural representation described in the utility model;
Fig. 3 is the front elevation of the utility model unmanned plane pulley skid switching mechanism (inelastic rope);
Fig. 4 is the utility model wheel assembly wheel assembly force analysis schematic diagram in switch rack " J " shape groove shallow slot;
Fig. 5 is the utility model wheel assembly force analysis schematic diagram while falling to " J " shape groove nadir.
In accompanying drawing, the list of parts of each label representative is as follows:
1, strut bar, 2, spring shock absorption bar, 3, wheel, 4, switch rack, 5, sled, 6, circumgyration stretch axle, 7, wheel axle, 8, stretch cord, 9, the through hole that passes for wheel, 10, hinging rotary stretching axis hole, 11, switch rack " J " shape groove, 12, the consistent through hole of through hole 9 that passes with wheel, 13, fuselage, 14, linking springs decoupling rod hole, 15, upper end hole, 16, base apertures.
The specific embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in the skid switching mechanism of Fig. 1 unmanned plane pulley and fuselage mounting structure schematic diagram, the switching mechanism of a kind of unmanned plane pulley of the utility model skid is and is symmetrical set in fuselage 13 both sides with respect to the longitudinal axis of fuselage, comprises strut bar 1, spring shock absorption bar 2, wheel 3, switch rack 4, skid 5 and stretch cord 8; Described strut bar 1 has 4, with respect to the longitudinal axis of fuselage, be and be symmetrical set, each side have two, take two of left side as example, be introduced, one end of these two bars connects respectively the front and rear of skid, and one end is connected to fuselage 13 bottoms in addition; The symmetrically arranged two groups of strut bars in the left and right sides are the setting of Eight characters shape below fuselage; Described spring shock absorption bar 2 one end are hinged on fuselage 13 middle parts by hinge, and the other end is connected on described switch rack 4 by described linking springs decoupling rod hole 14, and described spring shock absorption bar 2 inner cores are springs, play the effect of damping when unmanned plane moves.
As described in Figure 2 shown in switch rack structural representation, described switch rack 4 bottoms are provided with the through hole 9 passing for wheel 3, through hole 9 bilateral symmetry are provided with two projections, at described bossing, be provided with " J " shape groove 11 sliding for wheel axle 7, the shallow slot part of described " J " shape groove 11 is towards the rear side of fuselage; One end of described stretch cord 8 is through arranging in described switch rack 4 base apertures 16, and be fixed by this hole, one end is fixed on described wheel axle 7 through after being arranged on " J " shape groove upper end hole 15 in addition, and it is symmetricly set on described switch rack 4 both sides with respect to described wheel 3; Back upper place in described " J " shape groove 11 shallow slot parts is provided with hinging rotary stretching axis hole 10.
As shown in the front elevation of Fig. 3 unmanned plane pulley skid switching mechanism (inelastic rope), with the wheel 3 of wheel axle 7, be arranged in the through hole 9 of described switch rack 4, the two ends of wheel axle 7 are through described " J " shape groove 11, and wheel axle 7 is rotatably connected through the end of " J " shape groove 11 and one end of circumgyration stretch axle 6, rotating being arranged on described hinging rotary stretching axis hole 10 in other one end of described circumgyration stretch axle 6; Described circumgyration stretch axle 6 symmetries are arranged on 4 liang of outsides of described switch rack, described circumgyration stretch axle 6 inside are provided with retractor device, can elongate or shorten, at wheel axle 7, in described switch rack 4 " J " shape groove upward movement process, follow described circumgyration stretch axle 6 stretch and rotate; Described skid 5 is arranged on the bottom of switch rack 4, is provided with the consistent through hole 12 of through hole 9 passing for described wheel with described switch rack 4 bottoms in the middle of it, and the through hole 9 on through hole 12 and switch rack 4 on skid 5 aligns, and for wheel 3, passes; Described skid 5 is divided into two-layer, and upper strata is the framework of being made by iron plate, and lower floor is made by high-abrasive material, is preferably bamboo chip, is convenient to wearing and tearing and changes, described skid 5 front end perks, sled front end direct impact runway while avoiding unmanned plane landing.
When unmanned plane takes off in ground roll-out, described wheel axle 7 the top in switch rack " J " shape groove dogleg section, described wheel 3 nadirs exceed described skid 5 bottom surfaces, described wheel 3 rolls on the ground, in this position, the gravity that wheel axle 7 is subject to fuselage is the pressure G vertically downward of fuselage to wheel axle 7
1, stretch cord is along the total force G of tensile force f, wheel axle 7 and the wheel 3 of rope shrinkage direction
2bearing force F with ground
?, stretch cord can be decomposed into level power F left along the tensile force f of rope direction
2power F straight up
1, force analysis as shown in Figure 4 because F × cos θ=F
1, F
1+ F
?>G
1+ G
2so wheel assembly is stuck in switch rack " J " shape groove shallow slot upper end.When the moment that unmanned plane plays aircraft wheel built on stilts, wheel axle is not subject to fuselage to its gravity G vertically downward
1bearing force F with ground
?, because F × cos is θ=F
1, F
1<G
2so wheel axle 7 falls along " J " shape groove shallow slots, until wheel axle 7 is while falling to " J " shape groove nadir, wheel axle 7 is subject to the total force G of itself and wheel 3
2along the tensile force f of rope shrinkage direction ', stretch cord along the tensile force f of rope shrinkage direction ', be decomposed into level power F to the right with stretch cord
4power F straight up
3, force analysis as shown in Figure 5 because
f
3>G
2so wheel axle 7 moves up to " J " shape groove upper end along " J " shape groove, meanwhile described wheel 3 is along with described wheel axle 7 motions rise to " J " shape groove upper end, now described wheel 3 nadirs are higher than the bottom surface of described skid 5, in the process that described wheel 3 and described wheel axle 7 move, be accompanied by the rotation that stretches of described circumgyration stretch axle 6, described wheel 3, wheel tensile axis 6 and wheel axle 7 state in whole flight course is constant; During landing, because described wheel 3 nadirs are higher than the bottom surface of described skid 5, described wheel 3 does not contact with runway, and described sled 5 contacts with runway, change traditional wheel landing into skid landing, friction of rolling becomes cliding friction, and friction drag increases, and has realized short distance brake landing.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within the spirit and principle of utility model, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. a unmanned plane pulley skid switching mechanism, comprises strut bar (1), spring shock absorption bar (2), wheel (3), switch rack (4), skid (5) and stretch cord (8); It is characterized in that: described strut bar (1) has 4, with respect to the longitudinal axis of fuselage, be and be symmetrical set, each side there are two, the one end that is positioned at the described strut bar (1) of a side connects respectively the front and rear of described skid (5), one end is connected to fuselage (13) bottom in addition, and the symmetrically arranged two groups of strut bars in the left and right sides are the setting of Eight characters shape below fuselage; Described spring shock absorption bar (2) one end is hinged on fuselage (13) middle part by hinge, and the other end connects on described switch rack (4) by linking springs decoupling rod hole (14); With the wheel (3) of wheel axle (7), be arranged in the through hole (9) passing for wheel on described switch rack (4).
2. unmanned plane pulley skid according to claim 1 switching mechanism, is characterized in that: described spring shock absorption bar (2) inner core is provided with spring.
3. unmanned plane pulley skid according to claim 1 switching mechanism, is characterized in that: described switch rack (4) bilateral symmetry has two projections, and " J " shape groove (11) sliding for described wheel axle (7) is set at bossing.
4. unmanned plane pulley skid according to claim 3 switching mechanism, is characterized in that: the two ends of described wheel axle (7) are through described " J " the shape groove (11) being arranged in the projection of described switch rack (4) both sides.
5. unmanned plane pulley skid according to claim 4 switching mechanism, it is characterized in that: also comprise circumgyration stretch axle (6), on described switch rack (4), be provided with circumgyration stretch axis hole (10), rotating being fixed on described circumgyration stretch axis hole (10) in one end of described circumgyration stretch axle (6), described wheel axle (7) is rotatably connected through the end of " J " shape groove (11) and other one end of described circumgyration stretch axle (6); Described circumgyration stretch axle (6) inside is provided with retractor device.
6. unmanned plane pulley skid according to claim 3 switching mechanism, it is characterized in that: described skid (5) is arranged on the bottom of described switch rack (4), in the middle of it, be provided with the consistent skid through hole (12) of through hole (9) passing for described wheel with described switch rack (4) bottom, through hole (9) alignment on described skid through hole (12) and described switch rack (4).
7. unmanned plane pulley skid according to claim 5 switching mechanism, is characterized in that: described skid (5) is divided into two-layer, and upper strata is the framework of being made by iron plate, and lower floor is made by high-abrasive material, and front end has perk.
8. unmanned plane pulley skid according to claim 4 switching mechanism, it is characterized in that: bottom, described switch rack both sides (4) is provided with for described stretch cord (8) one end to be passed and fixing base apertures (16), in described " J " shape groove upper end, be provided with the upper end hole (15) passing for other one end of described stretch cord (8), described stretch cord (8) is fixed on described wheel axle (7) through after described upper end hole (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320508997.2U CN203558204U (en) | 2013-08-20 | 2013-08-20 | Pulley and slide conversion mechanism for unmanned aerial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320508997.2U CN203558204U (en) | 2013-08-20 | 2013-08-20 | Pulley and slide conversion mechanism for unmanned aerial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203558204U true CN203558204U (en) | 2014-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320508997.2U Withdrawn - After Issue CN203558204U (en) | 2013-08-20 | 2013-08-20 | Pulley and slide conversion mechanism for unmanned aerial vehicle |
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|---|---|
| CN (1) | CN203558204U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103419930A (en) * | 2013-08-20 | 2013-12-04 | 桂林航龙科讯电子技术有限公司 | Unmanned aerial vehicle pulley and slide converting mechanism |
-
2013
- 2013-08-20 CN CN201320508997.2U patent/CN203558204U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103419930A (en) * | 2013-08-20 | 2013-12-04 | 桂林航龙科讯电子技术有限公司 | Unmanned aerial vehicle pulley and slide converting mechanism |
| CN103419930B (en) * | 2013-08-20 | 2015-10-28 | 桂林航龙科讯电子技术有限公司 | The switching mechanism of a kind of unmanned plane pulley skid |
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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 |
Granted publication date: 20140423 Effective date of abandoning: 20151028 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |