CN208181403U - Multi-rotor aerocraft wheel-retracting gear - Google Patents
Multi-rotor aerocraft wheel-retracting gear Download PDFInfo
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- CN208181403U CN208181403U CN201820515279.0U CN201820515279U CN208181403U CN 208181403 U CN208181403 U CN 208181403U CN 201820515279 U CN201820515279 U CN 201820515279U CN 208181403 U CN208181403 U CN 208181403U
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- cam
- undercarriage
- arc chute
- shaft
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Abstract
The utility model provides a kind of multi-rotor aerocraft wheel-retracting gear, including undercarriage, bracket, steering engine component, cam and cam pin shaft；Wherein, the upper end of the undercarriage and the lower end of the bracket are hinged；The steering engine component is fixed on the one side of the bracket；The cam is provided with an arc chute, and one end of the cam pin shaft connects the side wall of the undercarriage, and the other end is arranged in the arc chute；When the rotation of the cam described in the steering engine Component driver, the cam pin shaft can slide in the arc chute, and the drive of the arc chute cam pin slide switches the undercarriage between full state and collapsed state.The utility model centered rudder thermomechanical components are rotated by shaft band moving cam, the movement of cam driven cam pin shaft, and then undercarriage is driven to rotate so that falling frame can be upwards collected through, and visual apparatus is made to have broader visual angle after packing up.
Description
Technical field
The utility model relates to vehicle technologies, and in particular, to a kind of multi-rotor aerocraft wheel-retracting gear.
Background technique
With unmanned vehicle in various industries using more and more extensive.It cannot be reached in some operating personnels, it is difficult
To utilize unmanned vehicle in the high-risk working environment of arrival or poor transport leads to the workplace that cannot be reached rapidly
Working efficiency can greatly be improved.
It is more and more flourishing in intellectual technology, and safety in production require more it is stringent instantly, it is some open air high-risk operations
Gradually replaced by artificial intelligence equipment.Corresponding work is executed increasingly with more rotor unmanned aircrafts under this main trend
Generally.Machine vision is the important means of multi-rotor aerocraft acquisition data, and the holder of visual apparatus is supported to be typically mounted at nothing
Man-machine lower part, it is desirable that when work 360 degree it is unobstructed so that the folding and unfolding for the device that rises and falls become inevitable requirement.
Currently, the folding and unfolding of undercarriage mostly uses link mechanism, and connecting rod is driven by steering engine to be rotated, and realizes the folding and unfolding of undercarriage.
The phenomenon that it is primarily present following deficiency: 1 inertia force is uneven, is easy to appear shake, impact；2 connecting rods are non-standard, small lot
Production and processing is difficult, and the period is long, at high cost；3 designs are relatively complicated, to requirement on machining accuracy height；4 controls are difficult, are not easy to realize
The stable characteristics of motion of undercarriage.
Utility model content
For the defects in the prior art, the purpose of the utility model is to provide a kind of multi-rotor aerocraft undercarriage controls
Mechanism.
According to multi-rotor aerocraft wheel-retracting gear provided by the utility model, including undercarriage, bracket, steering engine group
Part, cam and cam pin shaft；
Wherein, the upper end of the undercarriage and the lower end of the bracket are hinged；The steering engine component is fixed on the bracket
One side on；
The cam is provided with an arc chute, and one end of the cam pin shaft connects the side wall of the undercarriage, another
End is arranged in the arc chute；
When the rotation of the cam described in the steering engine Component driver, the cam pin shaft can be slided in the arc chute
Dynamic, the drive of the arc chute cam pin slide cuts the undercarriage between full state and collapsed state
It changes.
It preferably, further include spring；
One end of the spring connects the bracket, and the other end connects the cam；
When the undercarriage is in full state, the spring is in tensional state, when the undercarriage is in collapsed state,
The spring is in reset condition.
Preferably,
The arc chute includes the first arc chute section being sequentially communicated, sliding slot curved section, the second arc chute section；
The rotation overlapping of axles in the center of circle of the first arc chute section and the second arc chute section and the cam.
Preferably,
The undercarriage includes the first threaded hole and the first pin hole；
First pin hole is fixed on bracket by pin shaft forms revolute pair, the threaded one end connection of the cam pin shaft
First threaded hole.
Preferably, the bracket includes that the second pin hole, third pin hole, the second threaded hole and first are raised,
Mounting hole is provided on the steering engine component, the steering engine component passes through the mounting hole and second threaded hole
Connection；
The pin shaft is threaded through in second pin hole and the first pin hole；The shaft of the steering engine component passes through the third
Pin hole connects the cam；
The second protrusion, one end connection of the spring first protrusion are provided on the cam, the other end connects institute
State the second protrusion.
Preferably,
The steering engine component includes rotor, and the rotor is connect by shaft with the cam；
The shaft includes sequentially connected splined hole, cylinder shaft part and special-shaped shaft part；
Spline setting on the rotor is connect in the splined hole with rotor, and the cylinder shaft part is threaded through third pin hole
Revolute pair is formed, the abnormity shaft part is threaded through in the irregularly-shaped hole of the cam.
Preferably,
The cam pin shaft includes cylindrical shaft and external screw thread, and the cylindrical shaft and the arc chute, which are matched, is combined into cam
Pair, the external screw thread are threadedly coupled with first threaded hole.
Preferably, a roller is covered on the cam pin shaft；The roller and the arc chute form cam pair.
Preferably, the cam is made of aluminium alloy or carbon fiber plate material.
Preferably, the quantity of the cam is two；
The two sides that undercarriage is arranged in two cams are symmetric.
Compared with prior art, the utility model have it is following the utility model has the advantages that
1, the utility model centered rudder thermomechanical components are rotated by shaft band moving cam, the movement of cam driven cam pin shaft, in turn
Driving undercarriage to rotate, to have so that falling frame can be upwards collected through after packing up the visual apparatus on multi-rotor aerocraft broader
Visual angle；
2, the utility model can replace traditional link mechanism, compact-sized, simple and reliable, easily controllable, can be substantially
Processing cost is reduced, and keeps the folding and unfolding of undercarriage gentler；
3, cam setting is arc-shaped in the utility model, can make the movement of undercarriage, and control is simple, and movement is steady,
The phenomenon that non-jitter, impact.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon:
Fig. 1 is the structural schematic diagram of multi-rotor aerocraft wheel-retracting gear in the utility model；
Fig. 2 is the structural schematic diagram of undercarriage in the utility model；
Fig. 3 is the structural schematic diagram in a direction of bracket in the utility model；
Fig. 4 is the structural schematic diagram in another direction of bracket in the utility model；
Fig. 5 is the structural schematic diagram of the utility model centered rudder thermomechanical components；
Fig. 6 is the structural schematic diagram of shaft in the utility model；
Fig. 7 is the structural schematic diagram of cam in the utility model；
Fig. 8 (a) is the structural schematic diagram that undercarriage is in down state in the utility model；
Fig. 8 (b) is the structural schematic diagram that undercarriage is in collapsed state in the utility model；
Fig. 9 is the use state diagram of multi-rotor aerocraft wheel-retracting gear in the utility model.
In figure:
1 is undercarriage；11 be the first threaded hole；12 be the first pin hole；2 be bracket；21 be the first protrusion；22 be the second pin
Hole；23 be the second threaded hole；24 be third pin hole；3 be steering engine component；31 be rotor；4 be shaft；41 be splined hole；42 be circle
Axis of a cylinder section, 43 be special-shaped shaft part；5 be spring；6 be cam；61 be irregularly-shaped hole；62 be the second protrusion；63 be the first arc chute
Section；64 be sliding slot curved section；65 be the second arc chute section；7 be cam pin shaft.
Specific embodiment
The utility model is described in detail combined with specific embodiments below.Following embodiment will be helpful to this field
Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that ability
For the those of ordinary skill in domain, without departing from the concept of the premise utility, various modifications and improvements can be made.
These are all within the protection scope of the present invention.
Fig. 1 is the structural schematic diagram of multi-rotor aerocraft wheel-retracting gear in the utility model.As shown in Figure 1, this
Utility model provide multi-rotor aerocraft wheel-retracting gear, including undercarriage 1, bracket 2, steering engine component 3, cam 6 and
Cam pin shaft 7；
Wherein, the upper end of the undercarriage 1 and the lower end of the bracket 2 are hinged；The steering engine component 3 is fixed on the branch
On the one side of frame 2；The cam 6 is provided with an arc chute, and one end of the cam pin shaft 7 connects the undercarriage 1
Side wall, the other end are arranged in the arc chute；When the steering engine component 3 drives the cam 6 to rotate, the cam pin shaft
7 can slide in the arc chute, and the drive of the arc chute sliding of cam pin shaft 7 is so that the undercarriage 1
Switch between full state and collapsed state.
Multi-rotor aerocraft wheel-retracting gear provided by the utility model further includes spring 5；The one of the spring 5
End connects the bracket 2, and the other end connects the cam 6；When the undercarriage 1 is in full state, the spring 5 is in stretching
State, when the undercarriage 1 is in collapsed state, the spring 5 is in reset condition.
Fig. 2 is the structural schematic diagram of undercarriage in the utility model, as shown in Fig. 2, the undercarriage 1 includes the first screw thread
Hole 11 and the first pin hole 12；First pin hole 12 is fixed on bracket 2 by pin shaft forms revolute pair, the cam pin shaft 7
Threaded one end connect first threaded hole 11.
Fig. 3, Fig. 4 are the structural schematic diagram of bracket in the utility model, and as shown in Figure 3, Figure 4, the bracket 2 includes second
Pin hole 22, third pin hole 24, the second threaded hole 23 and the first protrusion 21 are provided with mounting hole 32 on the steering engine component 3, described
Steering engine component 3 is connect by the mounting hole 32 with second threaded hole 23；The pin shaft is threaded through second pin hole 22
In the first pin hole 12；The shaft 4 of the steering engine component 3 passes through the third pin hole 24 and connects the cam 6；
The second protrusion 62 is provided on the cam 6, one end of the spring 5 connects first protrusion 21, the other end
Connect second protrusion 62.
Fig. 5 is the structural schematic diagram of the utility model centered rudder thermomechanical components, as shown in figure 5, the steering engine component 3 includes rotor
31, the rotor 31 is connect by shaft 4 with the cam 6；
Fig. 6 is the structural schematic diagram of shaft in the utility model, as shown in fig. 6, the shaft 4 includes sequentially connected flower
Keyhole 41, cylinder shaft part 42 and special-shaped shaft part 43；Spline setting on the rotor 31 connects in the splined hole 41 with rotor 31
It connects, the cylinder shaft part 42 is threaded through third pin hole 24 and forms revolute pair, and the abnormity shaft part 43 is threaded through the different of the cam 6
In shape hole 61.
Fig. 7 is the structural schematic diagram of cam in the utility model, as shown in fig. 7, the cam 6 is provided with arc chute.
The arc chute includes the first arc chute section 63 being sequentially communicated, sliding slot curved section 64, the second arc chute section 65；It is described
The rotation overlapping of axles in the center of circle of the first arc chute section 63 and the second arc chute section 65 and the cam 6.The abnormity
The upper end of the cam 6 is arranged in hole 61 and second protrusion 62.Therefore when steering engine component 3 drives arc chute sliding,
When the cam pin shaft 7 is in the first arc chute section 63 and the second arc chute section 65, since first circular arc is sliding
The rotation overlapping of axles in the center of circle of slot section 63 and the second arc chute section 65 and the cam 6, are pretended used in the cam pin
Torque on axis 7 is zero, and cam pin shaft 7 does not slide at this time.
The cam pin shaft 7 includes cylindrical shaft and external screw thread, and the cylindrical shaft and the arc chute, which are matched, is combined into cam
Pair, the external screw thread are threadedly coupled with first threaded hole 11.
In the present embodiment, a roller is covered on the cam pin shaft 7；The roller and the arc chute form cam
It is secondary.The cam 6 is made of aluminium alloy or carbon fiber plate material.The quantity of the cam 6 is two；Two cams 6 are set
It sets and is symmetric in the two sides of undercarriage 1.
Fig. 8 (a) is the structural schematic diagram that undercarriage is in down state in the utility model, and Fig. 8 (b) is in the utility model
Undercarriage is in the structural schematic diagram of collapsed state, as shown in Fig. 8 (a) and Fig. 8 (b), in the implementation case, when 6 inverse time of cam
Needle rotate when, undercarriage 1, which rotates clockwise, to be fallen, cam pin shaft 7 enter the second arc chute section before, spring torque direction with
6 rotation direction of cam is opposite；When cam pin shaft 7 enters the second arc chute section just, spring torque 0；When cam pin shaft 7
Into after the second arc chute section, undercarriage 1 stops operating, and cam 6 can be self-locking, and cam 6 continues to rotate on earth, spring torque
Direction is identical as 6 rotation direction of cam, can prevent cam 6 from rotating clockwise due to gravity.When cam 6 rotates clockwise,
Undercarriage 1 counterclockwise pack up and self-locking by rotation.
In the present embodiment, the utility model centered rudder thermomechanical components are rotated by shaft band moving cam, cam driven cam pin
Axis movement, and then driving undercarriage to rotate sets so that falling frame can be upwards collected through after packing up the vision that multi-rotor aerocraft is arranged
Standby to have broader visual angle, visual apparatus is arranged between undercarriage；The utility model can replace traditional connecting rod
Mechanism, it is compact-sized, it is simple and reliable, it is easily controllable, processing cost can be greatly reduced, and keep the folding and unfolding of undercarriage gentler；
Cam setting is arc-shaped in the utility model, can make the movement of undercarriage, and control is simple, and movement is steady, non-jitter, impact
The phenomenon that.
Specific embodiment of the utility model is described above.It is to be appreciated that the utility model not office
It is limited to above-mentioned particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims,
This has no effect on the substantive content of the utility model.
Claims (10)
1. a kind of multi-rotor aerocraft wheel-retracting gear, which is characterized in that including undercarriage (1), bracket (2), steering engine group
Part (3), cam (6) and cam pin shaft (7)；
Wherein, the upper end of the undercarriage (1) and the lower end of the bracket (2) are hinged；The steering engine component (3) is fixed on described
On the one side of bracket (2)；
The cam (6) is provided with an arc chute, and one end of the cam pin shaft (7) connects the side wall of the undercarriage (1),
The other end is arranged in the arc chute；
When the steering engine component (3) drives the cam (6) rotation, the cam pin shaft (7) can be in the arc chute
Middle sliding, the drive of the arc chute cam pin shaft (7) slides so that the undercarriage (1) is in full state and packs up
Switch between state.
2. multi-rotor aerocraft wheel-retracting gear according to claim 1, which is characterized in that further include spring (5)；
One end of the spring (5) connects the bracket (2), and the other end connects the cam (6)；
When the undercarriage (1) is in full state, the spring (5) is in tensional state, packs up shape when the undercarriage (1) is in
When state, the spring (5) is in reset condition.
3. multi-rotor aerocraft wheel-retracting gear according to claim 1, which is characterized in that
The arc chute includes the first arc chute section (63) being sequentially communicated, sliding slot curved section (64), the second arc chute
Section (65)；
The rotary shaft in the center of circle of the first arc chute section (63) and the second arc chute section (65) and the cam (6)
It is overlapped.
4. multi-rotor aerocraft wheel-retracting gear according to claim 1, which is characterized in that
The undercarriage (1) includes the first threaded hole (11) and the first pin hole (12)；
First pin hole (12) is fixed on bracket (2) by pin shaft forms revolute pair, one end spiral shell of the cam pin shaft (7)
Line connects first threaded hole (11).
5. multi-rotor aerocraft wheel-retracting gear according to claim 2, which is characterized in that bracket (2) packet
The second pin hole (22), third pin hole (24), the second threaded hole (23) and first raised (21) are included,
Be provided with mounting hole (32) on the steering engine component (3), the steering engine component (3) by the mounting hole (32) with it is described
Second threaded hole (23) connection；
The pin shaft is threaded through in second pin hole (22) and the first pin hole (12)；The shaft (4) of the steering engine component (3) is worn
It crosses the third pin hole (24) and connects the cam (6)；
Second raised (62) are provided on the cam (6), one end of the spring (5) connects described first raised (21), separately
One end connection described second raised (62).
6. multi-rotor aerocraft wheel-retracting gear according to claim 1, which is characterized in that
The steering engine component (3) includes rotor (31), and the rotor (31) is connect by shaft (4) with the cam (6)；
The shaft (4) includes sequentially connected splined hole (41), cylinder shaft part (42) and special-shaped shaft part (43)；
Spline setting on the rotor (31) is connect in the splined hole (41) with rotor (31), and the cylinder shaft part (42) is worn
It is located at third pin hole (24) and forms revolute pair, the abnormity shaft part (43) is threaded through in the irregularly-shaped hole (61) of the cam (6).
7. multi-rotor aerocraft wheel-retracting gear according to claim 4, which is characterized in that
The cam pin shaft (7) includes cylindrical shaft and external screw thread, and the cylindrical shaft and the arc chute, which are matched, is combined into cam pair,
The external screw thread is threadedly coupled with first threaded hole.
8. multi-rotor aerocraft wheel-retracting gear according to claim 1, which is characterized in that the cam pin shaft
(7) roller is covered on；The roller and the arc chute form cam pair.
9. multi-rotor aerocraft wheel-retracting gear according to claim 1, which is characterized in that the cam (6) is adopted
It is made of aluminium alloy or carbon fiber plate material.
10. multi-rotor aerocraft wheel-retracting gear according to claim 1, which is characterized in that the cam (6)
Quantity is two；
Two cam (6) settings are symmetric in the two sides of undercarriage (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820515279.0U CN208181403U (en) | 2018-04-12 | 2018-04-12 | Multi-rotor aerocraft wheel-retracting gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820515279.0U CN208181403U (en) | 2018-04-12 | 2018-04-12 | Multi-rotor aerocraft wheel-retracting gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208181403U true CN208181403U (en) | 2018-12-04 |
Family
ID=64436831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820515279.0U Active CN208181403U (en) | 2018-04-12 | 2018-04-12 | Multi-rotor aerocraft wheel-retracting gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208181403U (en) |
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2018
- 2018-04-12 CN CN201820515279.0U patent/CN208181403U/en active Active
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