CN208233347U - The unmanned plane locking of propeller device of non-contact separate layout - Google Patents
The unmanned plane locking of propeller device of non-contact separate layout Download PDFInfo
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- CN208233347U CN208233347U CN201820845202.XU CN201820845202U CN208233347U CN 208233347 U CN208233347 U CN 208233347U CN 201820845202 U CN201820845202 U CN 201820845202U CN 208233347 U CN208233347 U CN 208233347U
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Abstract
The utility model provides a kind of unmanned plane locking of propeller device of non-contact separate layout, and locking device includes propeller, locking frame, motor mechanism and set of permanent magnets；Set of permanent magnets includes the 1st set of permanent magnets, the 2nd set of permanent magnets and the 3rd set of permanent magnets；Wherein, the 1st set of permanent magnets is installed to propeller root；2nd set of permanent magnets and the 3rd set of permanent magnets are installed on the locking disk of locking frame；The polarity arrangement mode of 2nd set of permanent magnets is identical with the polarity arrangement mode of the 1st set of permanent magnets；The polarity arrangement mode of 3rd set of permanent magnets and the polarity arrangement mode of the 1st set of permanent magnets are opposite.Advantage are as follows: this locking device structure is simple, light-weight；Propeller is locked using cordless simultaneously, avoids mechanical wear；This locking device have many advantages, such as to lock torque is big, locking time is short, without additional power losses, failure rate is low and easy to disassemble and maintenance.
Description
Technical field
The utility model belongs to air vehicle technique field, and in particular to a kind of unmanned plane spiral of non-contact separate layout
Paddle locking device.
Background technique
The unmanned plane of lift-thrust divergence type (separate lift thrust) has VTOL ability, and same
When take into account low speed and spiral ability and high-performance cruise performance.This type of unmanned plane, which has been obtained, to be widely applied, and field includes
Aerial photography, route inspection, high altitude environment monitoring etc..In order to have hovering and high-performance cruise ability simultaneously, this type of unmanned plane is matched
Have two sets of immutable power devices with body setting angle, such as Chinese appearance patent, publication number CN303737778S.Its
In, propeller rotational is driven when the Vertical Dynamic device being installed on wing is for low speed to provide lift and torque, respectively in fact
Now the control of control height and flight attitude, this set dynamical system can close during high-speed flight.In high-speed flight, nobody
Machine is completely by being installed on the driving of head/tail portion horizontal power device.
However, since above-mentioned propeller has been all made of high efficiency Airfoil Design, and the resistance of machine shaft is typically small,
It can be made to carry out irregular rotation when high-speed flight under the driving of high speed incoming flow, and this rotation can directly result in its slip-stream
The variation of area's Flow Field Distribution changes the incoming flow conditions of wing, most notable one effect is the downwash flow for leading to disorder,
To reduce the lift resistance ratio of wing, and then reduce cruise time and the endurance distance of unmanned plane.
Therefore, all vertical spin paddles are carried out locking along its front face area minimum direction under high speed cruise conditions can be with
Adverse effect of the propeller flow field for wing lifting resistance characteristic is reduced to greatest extent.Existing locking scheme is divided into two kinds: connecing
Touch locking and contactless locking.Contact locking often uses eccentric spring pin to realize, the shortcoming of this mode is
Mechanical friction can be generated, so as to cause lockable mechanism service life reduction.Contactless locking scheme often uses electromagnetic mode, i.e., logical
Control electric current is crossed to change electromagnetic force size, the shortcoming of such mode is to will lead to mentioning significantly for unmanned plane construction weight
It rises.
Utility model content
In view of the defects existing in the prior art, the utility model provides a kind of unmanned plane spiral of non-contact separate layout
Paddle locking device can effectively solve the above problems.
The technical solution adopted in the utility model is as follows:
The utility model provides a kind of unmanned plane locking of propeller device of non-contact separate layout, comprising: propeller
(1), locking frame (2), motor mechanism (3) and set of permanent magnets (4)；
The root center of the propeller (1) is provided with motor shaft pilot hole (1.1)；
The locking frame (2) includes locking disk (2.1) and is integrally formed in the locking disk (2.1) below
Several support columns (2.2)；The center of the locking disk (2.1) is provided with gasket pilot hole (2.3)；
The motor mechanism (3) includes motor (3.1), motor rotation axis (3.2), motor cabinet (3.3) and gasket (3.4)；
The motor (3.1) is placed in the inside of the locking frame (2), and the bottom of the motor (3.1) is solid by the motor cabinet (3.3)
Dingan County is attached on the support column (2.2) of the locking frame (2), and then keeps the motor mechanism (3) and the locking frame (2) shared
Hole location is installed；The motor rotation axis (3.2) of the motor (3.1) is vertically arranged, and top passes through the locking disk (2.1)
Gasket pilot hole (2.3) after, the gasket (3.4) are fixedly mounted outside in the motor rotation axis (3.2), and then make described
Gasket (3.4) realizes the propeller (1) and institute between the locking disk (2.1) and the root of the propeller (1)
State the contactless setting of locking disk (2.1)；Finally, being then passed through the propeller at the top of the motor rotation axis (3.2)
(1) it after motor shaft pilot hole (1.1), is screwed using motor cap (3.5), realizes the motor mechanism (3) and the propeller
(1) be connected and fixed；
Root with the pivot center (3.6) of the motor rotation axis (3.2) for symmetrical center line, in the propeller (1)
Portion is symmetrical arranged the 1st left permanent magnet installation position (1.2) and the 1st right permanent magnet installation position (1.3)；The 1st left permanent magnet installation
The quantity of position (1.2) is identical with the quantity of the described 1st right permanent magnet installation position (1.3), is n；The 1st left permanent magnet peace
The line of centres for filling position (1.2) and the 1st right permanent magnet installation position (1.3) is straight line；
The locking disk (2.1) be arranged the 2nd left permanent magnet installation position (2.4), the 2nd right permanent magnet installation position (2.5),
3rd left permanent magnet installation position (2.6) and the 3rd right permanent magnet installation position (2.7)；Wherein, the described 2nd left permanent magnet installation position
(2.4), the described 2nd right permanent magnet installation position (2.5), the 3rd left permanent magnet installation position (2.6) and the 3rd right permanent magnet
The setting quantity of installation position (2.7) is n；The 2nd left permanent magnet installation position (2.4) and the 2nd right permanent magnet installation
Position (2.5) is symmetrical set relative to the pivot center (3.6), the 2nd left permanent magnet installation position (2.4) and described
The line of centres of 2nd right permanent magnet installation position (2.5) is the straight line L1 in one article of center of circle by locking disk (2.1)；3rd left side is forever
Magnet installation position (2.6) and the 3rd right permanent magnet installation position (2.7) are symmetrical set relative to the pivot center (3.6), institute
It states the line of centres of the 3rd left permanent magnet installation position (2.6) and the 3rd right permanent magnet installation position (2.7) and passes through locking for one article
The straight line L2 in the center of circle of disk (2.1)；Also, straight line L1 and straight line L2 are mutually perpendicular to；
Set of permanent magnets (4) includes the 1st set of permanent magnets, the 2nd set of permanent magnets and the 3rd set of permanent magnets；Wherein, the 1st set of permanent magnets
Including the 1st left permanent magnet (4.1) and the 1st right permanent magnet (4.2)；The 1st left permanent magnet (4.1) and the 1st right permanent magnet
(4.2) it is respectively installed to the described 1st left permanent magnet installation position (1.2) and the 1st right permanent magnet installation position (1.3), also,
1st left permanent magnet (4.1) is identical with the polarity arrangement mode of the 1st right permanent magnet (4.2), also, its pole N and the pole S are in phase up and down
To set-up mode；
2nd set of permanent magnets includes the 2nd left permanent magnet (4.3) and the 2nd right permanent magnet (4.4)；The 2nd left permanent magnetism
Body (4.3) and the 2nd right permanent magnet (4.4) are respectively installed to the described 2nd left permanent magnet installation position (2.4) and the 2nd right side
Permanent magnet installation position (2.5), also, the polarity arrangement side of the 2nd left permanent magnet (4.3) and the 2nd right permanent magnet (4.4)
Formula is all the same, and identical as the polarity arrangement mode of the described 1st left permanent magnet (4.1) and the 1st right permanent magnet (4.2)；
3rd set of permanent magnets includes the 3rd left permanent magnet (4.5) and the 3rd right permanent magnet (4.6)；The 3rd left permanent magnetism
Body (4.5) and the 3rd right permanent magnet (4.6) are respectively installed to the described 3rd left permanent magnet installation position (2.6) and the 3rd right side
Permanent magnet installation position (2.7), also, the polarity arrangement side of the 3rd left permanent magnet (4.5) and the 3rd right permanent magnet (4.6)
Formula is all the same, and opposite with the polarity arrangement mode of the described 1st left permanent magnet (4.1) and the 1st right permanent magnet (4.2).
Preferably, the locking frame (2) uses cylindrical sides hollow design.
Preferably, the setting quantity of the support column (2.2) is 4；The bottom of each support column (2.2) is inwardly curved
Song simultaneously has mounting hole, and then is fixed with the motor cabinet (3.3) by screw and nut.
Preferably, the 3rd left permanent magnet (4.5) and the 3rd right permanent magnet (4.6) are region of rejection permanent magnet, the 2nd left permanent magnet
(4.3) and the 2nd right permanent magnet (4.4) is domain of attraction permanent magnet；The area and magnetic force of region of rejection permanent magnet are all larger than domain of attraction forever
Magnet；Region of rejection permanent magnet is rectangular；Domain of attraction permanent magnet is circle.
Preferably, set of permanent magnets (4) is with corresponding permanent magnet installation position using glued fixed form.
Preferably, each permanent magnet in set of permanent magnets (4) uses neodymium iron boron magnetic body.
Preferably, the locking frame (2) uses aluminum alloy material.
The unmanned plane locking of propeller device of non-contact separate layout provided by the utility model has the advantage that
This locking device structure is simple, light-weight；Propeller is locked using cordless simultaneously, avoids machine
Tool abrasion；This locking device have locking torque is big, locking time is short, without additional power losses, failure rate it is low and convenient for tearing open
The advantages that unloading and safeguarding.
Detailed description of the invention
Fig. 1 is vertical after the assembling of the unmanned plane locking of propeller device of non-contact separate layout provided by the utility model
Body structural schematic diagram；
Fig. 2 is the decomposing state of the unmanned plane locking of propeller device of non-contact separate layout provided by the utility model
Schematic diagram；
Fig. 3 is the status diagram of locking frame and corresponding permanent magnet in Fig. 2；
Fig. 4 is a kind of typical permanent magnet arrangement schematic diagram provided by the utility model；
Fig. 5 is another typical permanent magnet arrangement schematic diagram provided by the utility model；
Fig. 6 is that the locking frame after installing permanent magnet attracts and repels domain schematic diagram
Fig. 7 propeller unstability changes schematic diagram with rotational angle
The schematic diagram of locking time of Fig. 8 the utility model under different revolution speed of propeller
Fig. 9 is with/without the utility model motor rotative power comparison diagram.
Specific embodiment
The technical issues of in order to keep the utility model solved, technical solution and beneficial effect are more clearly understood, below
In conjunction with accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific implementation described herein
Example only to explain the utility model, is not used to limit the utility model.
The purpose of this utility model is provided for lift-thrust divergence type (separate lift thrust) unmanned plane
A kind of unmanned plane locking of propeller device of non-contact separate layout mainly includes propeller 1, locking frame 2, motor mechanism 3
With set of permanent magnets 4；Wherein, set of permanent magnets 4 is arranged three groups altogether, and one group of permanent magnet is arranged on propeller, the installation of remaining permanent magnet
In on locking frame, multiple groups permanent magnet is arranged to reach locking effect according to certain rule.This locking device structure is simple,
It is light-weight；Propeller is locked using cordless simultaneously, avoids mechanical wear；There is this locking device locking to turn round
Square is big, locking time is short, without additional power losses, the advantages that failure rate is low and easy to disassemble and maintenance.
The utility model major design design are as follows: refer to Fig. 1, unmanned plane locking of propeller device mainly include propeller 1,
Locking frame 2, motor mechanism 3 and set of permanent magnets 4；Propeller is connected to motor by motor cap, can be locked by frictional force
And realize fast quick-detach.Motor is installed on motor cabinet, can drive propeller high-speed rotation；Locking frame uses cylinder hollow out
Formula design simultaneously installs shared installation position with motor.
Set of permanent magnets 4 includes three big groups, is respectively as follows: the 1st set of permanent magnets, the 2nd set of permanent magnets and the 3rd set of permanent magnets；1st forever
Magnet group is installed on propeller root position, and the 2nd set of permanent magnets and the 3rd set of permanent magnets are installed on the locking disk of locking frame 2,
Locking disk is located at below propeller root, also, has gap therebetween, makes the 2nd, the 3rd set of permanent magnets and the 1st permanent magnetism
Body group is a kind of non-contact separate layout mode；The line of centres of 2nd set of permanent magnets and the line of centres of the 3rd set of permanent magnets hang down
Directly；Also, the polarity arrangement mode of the 2nd set of permanent magnets is identical with the polarity arrangement mode of the 1st set of permanent magnets, the 3rd set of permanent magnets
Polarity arrangement mode and the 1st set of permanent magnets polarity arrangement mode on the contrary, in the utility model, the polarity of each permanent magnet is equal
It is to be oppositely arranged up and down, for example, top is the pole N, lower part is the pole S, alternatively, top is the pole S, lower part is the pole N；Therefore, work as spiral
Paddle rotate when, when the 1st set of permanent magnets turn to the 2nd set of permanent magnets just above when, generate maximum repulsive force；When the 1st permanent magnet
Group turn to the 3rd set of permanent magnets just above when, generate greatest attraction forces；It is acted on by alternate repulsive force and attraction, most
Make locking of propeller on locking line eventually.
In addition, for each group of set of permanent magnets, i.e., for the 1st set of permanent magnets, the 2nd set of permanent magnets and the 3rd set of permanent magnets,
Arrangement are as follows: be arranged symmetrically relative to machine shaft, therefore, the propeller magnetic field force each moment suffered in rotation is all
With rotation axial symmetry, so will not influence the dynamic balancing of rotating mechanism.
It describes in detail below to the utility model:
With reference to Fig. 1 and Fig. 2, the utility model provides a kind of unmanned plane locking of propeller dress of non-contact separate layout
It sets, comprising: propeller 1, locking frame 2, motor mechanism 3 and set of permanent magnets 4.
The root center of propeller 1 is provided with motor shaft pilot hole 1.1；
Locking frame 2 uses cylindrical sides hollow design, and using aluminum alloy material, typical process mode is CNC processing.
Locking frame side uses hollow out, so that in-flight Atmospheric Flow takes away the heat generated when brushless motor rotation, avoids electricity
Machine overheat.
Locking frame 2 includes locking disk 2.1 and several support columns being integrally formed in below locking disk 2.1
2.2；In the accompanying drawings, the setting quantity of support column 2.2 is 4；The bottom of each support column 2.2 curves inwardly and has installation
Hole, for being fixed with motor cabinet 3.3 by screw and nut.The center of locking disk 2.1 is provided with gasket pilot hole 2.3；
Motor mechanism 3 includes motor 3.1, motor rotation axis 3.2, motor cabinet 3.3 and gasket 3.4；Motor 3.1 is placed in locking
The bottom of the inside of frame 2, motor 3.1 is fixedly installed on the support column 2.2 of locking frame 2 by motor cabinet 3.3, and then makes electricity
Machine mechanism 3 and the shared installation hole location of locking frame 2；The motor rotation axis 3.2 of motor 3.1 is vertically arranged, and top passes through locking circle
After the gasket pilot hole 2.3 of disk 2.1, gasket 3.4 is fixedly mounted outside motor rotation axis 3.2, and then gasket 3.4 is made to be located at locking
Between disk 2.1 and the root of propeller 1, the contactless setting of propeller 1 and locking disk 2.1 is realized；Finally, motor turns
It after the top of moving axis 3.2 is then passed through the motor shaft pilot hole 1.1 of propeller 1, is screwed using motor cap 3.5, realizes motor mechanism 3
With being connected and fixed for propeller 1；
It is symmetrical center line with the pivot center 3.6 of motor rotation axis 3.2, it is left to be symmetrical arranged the 1st in the root of propeller 1
Permanent magnet installation position 1.2 and the 1st right permanent magnet installation position 1.3；The quantity and the 1st right permanent magnet of 1st left permanent magnet installation position 1.2
The quantity of installation position 1.3 is identical, is n, for example, the quantity of the 1st left permanent magnet installation position 1.2 is 1,2,3 etc.；
The line of centres of the 1st right permanent magnet installation position 1.3 in left permanent magnet installation position 1.2 and the 1st is straight line；
With reference to Fig. 2, locking disk 2.1 be arranged the 2nd left permanent magnet installation position 2.4, the 2nd right permanent magnet installation position 2.5,
The 3rd right permanent magnet installation position 2.7 in left permanent magnet installation position 2.6 and the 3rd；Wherein, the 2nd left permanent magnet installation position the 2.4, the 2nd is right forever
Magnet installation position 2.5, the 3rd right permanent magnet installation position 2.7 in left permanent magnet installation position 2.6 and the 3rd setting quantity be n, i.e.,
It is identical as the setting quantity of the 1st left permanent magnet installation position 1.2；
The 2nd right permanent magnet installation position 2.5 in left permanent magnet installation position 2.4 and the 2nd is set relative to 3.6 bilateral symmetry of pivot center
It sets, the line of centres of the 2nd right permanent magnet installation position 2.5 in left permanent magnet installation position 2.4 and the 2nd is one article and passes through locking disk 2.1
The center of circle straight line L1；
The 3rd right permanent magnet installation position 2.7 in left permanent magnet installation position 2.6 and the 3rd is set relative to 3.6 bilateral symmetry of pivot center
It sets, the line of centres of the 3rd right permanent magnet installation position 2.7 in left permanent magnet installation position 2.6 and the 3rd is one article and passes through locking disk 2.1
The center of circle straight line L2；Also, straight line L1 and straight line L2 are mutually perpendicular to；
Set of permanent magnets 4 includes the 1st set of permanent magnets, the 2nd set of permanent magnets and the 3rd set of permanent magnets；Permanent magnet and corresponding permanent magnetism
Body installation position is using glued fixed form.Each permanent magnet in set of permanent magnets uses neodymium iron boron magnetic body.
Wherein, the 1st set of permanent magnets includes the 1st right permanent magnet 4.2 of left permanent magnet 4.1 and the 1st；1st left 4.1 He of permanent magnet
1st right permanent magnet 4.2 is respectively installed to the 1st right permanent magnet installation position 1.3 in left permanent magnet installation position 1.2 and the 1st, also, the 1st is left
Permanent magnet 4.1 is identical with the polarity arrangement mode of the 1st right permanent magnet 4.2, also, its pole N and the pole S are in the upper and lower side of being oppositely arranged
Formula；For example, the 1st left 4.1 upper surface polarity of permanent magnet is the pole N, the 1st right 4.2 upper surface polarity of permanent magnet is the pole N；Alternatively, the 1st
Left 4.1 upper surface polarity of permanent magnet is the pole S, and the 1st right 4.2 upper surface polarity of permanent magnet is the pole S；
2nd set of permanent magnets includes the 2nd right permanent magnet 4.4 of left permanent magnet 4.3 and the 2nd；2nd left permanent magnet 4.3 and the 2nd is right
Permanent magnet 4.4 is respectively installed to the 2nd right permanent magnet installation position 2.5 in left permanent magnet installation position 2.4 and the 2nd, also, the 2nd left permanent magnetism
The polarity arrangement mode of body 4.3 and the 2nd right permanent magnet 4.4 is all the same, and with the 1st right permanent magnet 4.2 of left permanent magnet 4.1 and the 1st
Polarity arrangement mode it is identical；
3rd set of permanent magnets includes the 3rd right permanent magnet 4.6 of left permanent magnet 4.5 and the 3rd；3rd left permanent magnet 4.5 and the 3rd is right
Permanent magnet 4.6 is respectively installed to the 3rd right permanent magnet installation position 2.7 in left permanent magnet installation position 2.6 and the 3rd, also, the 3rd left permanent magnetism
The polarity arrangement mode of body 4.5 and the 3rd right permanent magnet 4.6 is all the same, and with the 1st right permanent magnet 4.2 of left permanent magnet 4.1 and the 1st
Polarity arrangement mode it is opposite.
The 3rd right permanent magnet 4.6 of left permanent magnet 4.5 and the 3rd is region of rejection permanent magnet, and the 2nd left permanent magnet 4.3 and the 2nd is right forever
Magnet 4.4 is domain of attraction permanent magnet；The area and magnetic force of region of rejection permanent magnet are all larger than domain of attraction permanent magnet；Region of rejection permanent magnet
It is rectangular；Domain of attraction permanent magnet is circle.That is: region of rejection permanent magnet is using area is larger, the stronger squared design of magnetic force, mesh
It is to increase repulsive area range and magnetic field strength.Domain of attraction permanent magnet uses the lesser circular design of area, may be implemented
Preferably to heart ability, propeller is accurately locked on locking line.Wherein, locking line and aircraft heading
In parallel.
It can be seen that set of permanent magnets 4 includes the 1st set of permanent magnets, the 2nd set of permanent magnets and the 3rd permanent magnetism in the utility model
Body group；1st set of permanent magnets is installed on propeller, and the 2nd set of permanent magnets and the 3rd set of permanent magnets are installed on the locking disk of locking frame
On.The polar configurations rule of three groups of permanent magnets is as follows:
(1) every group of set of permanent magnets all has relative to two groups of symmetrically arranged left and right of machine shaft set of permanent magnets；Also, it is every
The surface polarity of identical direction is identical after group set of permanent magnets installation, for example, N is extremely upward, alternatively, N is extremely arranged downward.
(2) two groups of set of permanent magnets of locking frame upper surface are installed on using the annular arrangement mode in interval, i.e. the 2nd permanent magnet
The group line of centres and the 3rd set of permanent magnets line of centres are in intersecting vertical.
(3) polarity of the 2nd set of permanent magnets and the 3rd set of permanent magnets that are installed on locking frame is opposite.Wherein, the 3rd set of permanent magnets
Polarity and the polarity of the 1st set of permanent magnets repel effect on the contrary, generating when close the two；The polarity and the 1st of 2nd set of permanent magnets is forever
The polarity of magnet group is identical, generates when the two is close and attracts effect.
Set of permanent magnets polarity exemplary configurations mode reference table 1, in table 1, lists two kinds of set of permanent magnets polarity arrangement sides altogether
Formula, wherein exemplary configurations mode 1, with reference to Fig. 4；Exemplary configurations mode 2, with reference to Fig. 5.
1 permanent magnet of table arranges typical scenario
The principle of domain of attraction and region of rejection, as shown in Figure 6.
With reference to Fig. 6 and Fig. 7, locking principle are as follows:
It is clockwise positive with the angle of heading (parallel with locking line) and propeller blade 1A.Work as propeller
When needing locking, electron speed regulator ESC stops according to flight control system instruction to 3 output power of motor mechanism, at this time spiral
Paddle kinetic energy under the collective effect of inertia, multiple permanent magnet magnetic forces, air drag and frictional force is gradually decayed；Wherein, it rubs
Power refers to: having frictional force between motor rotation axis 3.2 and motor 3.1, and since motor rotation axis 3.2 and propeller 1 are solid
Fixed, therefore, which will affect the rotation of propeller 1；
Gradually in moderating process, the arrangement mode of the permanent magnet as described in this programme, so that the dynamic instability of rotation is such as
Raising and lowering is spaced shown in Fig. 7.Specifically, permanent magnet magnetic force effect refers to: assuming that propeller is to rotate clockwise, working as permanent magnetism
When body group uses the arrangement of Fig. 3 and Fig. 4, in 1 rotation process of propeller, when the 1st left permanent magnet 4.1 turns to the 3rd left side
The surface of permanent magnet 4.5 turns to Fig. 7's when the 1st right permanent magnet 4.2 turns to the surface of the 3rd right permanent magnet 4.6
When the position B1, when propeller 1 turns to the center of region of rejection at this time, the repulsive force between permanent magnet is maximum at this time, spiral
The unstability degree of paddle rotation is most strong；With continuing to rotate for propeller 1, the unstability degree of propeller rotational gradually subtracts
Weak, after turning over 90 degree, the 1st left permanent magnet 4.1 turns to the surface of the 2nd left permanent magnet 4.3, the 1st 4.2 turns of right permanent magnet
When moving to the surface of the 2nd right permanent magnet 4.4, that is, when turning to the position B2 of Fig. 7, propeller 1 turns to domain of attraction at this time
When center, the attraction between permanent magnet is maximum at this time, and the unstability degree of propeller rotational is most weak；With propeller
1 continues to rotate, and the unstability degree of propeller rotational gradually increases, when turning over 90 degree again, the 1st 4.1 turns of left permanent magnet
It moves to the surface of the 3rd right permanent magnet 4.6 and turns when the 1st right permanent magnet 4.2 turns to the surface of the 3rd left permanent magnet 4.5
When moving the position B3 of Fig. 7, propeller 1 turns to the center of region of rejection again, and the repulsive force between permanent magnet is most at this time
Greatly, the unstability degree of propeller rotational is most strong, and after turning over 90 degree again, the 1st left permanent magnet 4.1 turns to the 2nd right permanent magnetism
The surface of body 4.4 when the 1st right permanent magnet 4.2 turns to the surface of the 2nd left permanent magnet 4.3, that is, turns to the position B4 of Fig. 7
When setting, when propeller 1 turns to the center of domain of attraction at this time, the attraction between permanent magnet is maximum at this time, and propeller turns
Dynamic unstability degree is most weak；So constantly alternately, therefore, according to Liapunov (Lyapunov) principle, final spiral
Paddle 1 will be locked on locking line because kinetic energy is constantly decayed, wherein locking line is the 2nd right permanent magnetism of left permanent magnet 4.3 and the 2nd
Central junction line between body 4.4；
After propeller is fully locked, the 1st left permanent magnet 4.1 is located at the surface of the 2nd left permanent magnet 4.3, the 1st right permanent magnet
4.2 are located at the surface of the 2nd right permanent magnet 4.4；Alternatively, the 1st left permanent magnet 4.1 is located at the surface of the 2nd right permanent magnet 4.4,
1st right permanent magnet 4.2 is located at the surface of the 2nd left permanent magnet 4.3；Such locking direction keeps propeller front face area minimum, produces
Raw flow field influences the lifting resistance characteristic of full machine minimum.
As Fig. 8 and Fig. 9 illustrate the utility model quick lock in and without the characteristic of additional power losses, are directed to certain type
13 cun of propellers test locking time and power in the case of specific rotation speeds, and carry out with the result for not installing the utility model
Comparison.As can be seen that the power consumption that the utility model is not additional for propeller rotational, and 6000 revs/min of feelings
Condition lower locking time is about 2.5 seconds, and locking is quick.
In practical application, three groups of permanent magnets can be replaced according to conditions such as unmanned plane during flying speed, interference current rates, be led to
Change magnetic force size is crossed to change locking torque.
Compared with prior art, the utility model has the beneficial effects that
(1) the utility model is established rules with the permanent magnet of mutual exclusion by one using contactless lock mode using attracting
The mode of arrangement is restrained so that propeller quick lock in is to designated position.Relative to tradition machinery formula locking device, the present apparatus
The abrasion of mechanical friction bring is avoided, therefore lock performance to reduce with the rising of frequency of usage.Relative to tradition
Electromagnetic locking device, the present apparatus does not need the electric-absorption structure of configuration structure complexity, to substantially reduce the peace of lockable mechanism
Fill volume and its weight.Relative to the contactless locking device arranged in other motors, the utility model is using low cost
Locking easy to process sets up meter, easy to disassemble and replacement and maintainability is good, therefore does not need to carry out re-personalization to motor
Design, to reduce manufacturing cost.
(2) magnet that the utility model is selected is arranged as separate arrangement, wherein one group of ring magnet is installed on propeller
Root, remaining two groups by annular space layout in the way of be installed on locking frame, this separate arrangement mode can produce compared with
Big locking torque, so that the locking time is shorter, and air force suffered after locking can not make propeller be detached from locking area.
Also, according to the size of propeller and working environment difference, what each group permanent magnet can be convenient more brings the compatible lock of acquisition
Determine torque.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching should also regard the protection scope of the utility model.
Claims (7)
1. a kind of unmanned plane locking of propeller device of non-contact separate layout characterized by comprising propeller (1), lock
Only frame (2), motor mechanism (3) and set of permanent magnets (4)；
The root center of the propeller (1) is provided with motor shaft pilot hole (1.1)；
The locking frame (2) includes locking disk (2.1) and is integrally formed in the locking disk (2.1) below several
Support column (2.2)；The center of the locking disk (2.1) is provided with gasket pilot hole (2.3)；
The motor mechanism (3) includes motor (3.1), motor rotation axis (3.2), motor cabinet (3.3) and gasket (3.4)；It is described
Motor (3.1) is placed in the inside of the locking frame (2), and the bottom of the motor (3.1) passes through the motor cabinet (3.3) fixed peace
It is attached on the support column (2.2) of the locking frame (2), and then makes the motor mechanism (3) and the shared installation of the locking frame (2)
Hole location；The motor rotation axis (3.2) of the motor (3.1) is vertically arranged, and top passes through the gasket of the locking disk (2.1)
After pilot hole (2.3), the gasket (3.4) are fixedly mounted outside in the motor rotation axis (3.2), and then make the gasket
(3.4) between the locking disk (2.1) and the root of the propeller (1), the propeller (1) and the lock are realized
The only contactless setting of disk (2.1)；Finally, being then passed through the propeller (1) at the top of the motor rotation axis (3.2)
It after motor shaft pilot hole (1.1), is screwed using motor cap (3.5), realizes the motor mechanism (3) and the propeller (1)
It is connected and fixed；
With the pivot center (3.6) of the motor rotation axis (3.2) for symmetrical center line, in the root pair of the propeller (1)
Claim the 1st left permanent magnet installation position (1.2) of setting and the 1st right permanent magnet installation position (1.3)；The 1st left permanent magnet installation position
(1.2) quantity is identical with the quantity of the described 1st right permanent magnet installation position (1.3), is n；The 1st left permanent magnet installation
The line of centres of position (1.2) and the 1st right permanent magnet installation position (1.3) is straight line；
In the locking disk (2.1), the 2nd left permanent magnet installation position (2.4), the 2nd right permanent magnet installation position (2.5), the 3rd are set
Left permanent magnet installation position (2.6) and the 3rd right permanent magnet installation position (2.7)；Wherein, the described 2nd left permanent magnet installation position (2.4),
The 2nd right permanent magnet installation position (2.5), the 3rd left permanent magnet installation position (2.6) and the 3rd right permanent magnet installation position
(2.7) setting quantity is n；The 2nd left permanent magnet installation position (2.4) and the 2nd right permanent magnet installation position (2.5)
It is symmetrical set relative to the pivot center (3.6), the 2nd left permanent magnet installation position (2.4) and the 2nd right permanent magnetism
The line of centres of body installation position (2.5) is the straight line L1 in the center of circle by locking disk (2.1)；3rd left permanent magnet installation
Position (2.6) and the 3rd right permanent magnet installation position (2.7) are symmetrical set relative to the pivot center (3.6), and the described 3rd is left
The line of centres of permanent magnet installation position (2.6) and the 3rd right permanent magnet installation position (2.7) is one article and passes through locking disk
(2.1) the straight line L2 in the center of circle；Also, straight line L1 and straight line L2 are mutually perpendicular to；
Set of permanent magnets (4) includes the 1st set of permanent magnets, the 2nd set of permanent magnets and the 3rd set of permanent magnets；Wherein, the 1st set of permanent magnets includes
1st left permanent magnet (4.1) and the 1st right permanent magnet (4.2)；The 1st left permanent magnet (4.1) and the 1st right permanent magnet (4.2)
It is respectively installed to the described 1st left permanent magnet installation position (1.2) and the 1st right permanent magnet installation position (1.3), also, the 1st left side is forever
Magnet (4.1) is identical with the polarity arrangement mode of the 1st right permanent magnet (4.2), also, its pole N and the pole S are in the upper and lower side of being oppositely arranged
Formula；
2nd set of permanent magnets includes the 2nd left permanent magnet (4.3) and the 2nd right permanent magnet (4.4)；The 2nd left permanent magnet
(4.3) and the 2nd right permanent magnet (4.4) is respectively installed to the described 2nd left permanent magnet installation position (2.4) and the 2nd right side forever
Magnet installation position (2.5), also, the polarity arrangement mode of the 2nd left permanent magnet (4.3) and the 2nd right permanent magnet (4.4)
It is all the same and identical as the polarity arrangement mode of the described 1st left permanent magnet (4.1) and the 1st right permanent magnet (4.2)；
3rd set of permanent magnets includes the 3rd left permanent magnet (4.5) and the 3rd right permanent magnet (4.6)；The 3rd left permanent magnet
(4.5) and the 3rd right permanent magnet (4.6) is respectively installed to the described 3rd left permanent magnet installation position (2.6) and the 3rd right side forever
Magnet installation position (2.7), also, the polarity arrangement mode of the 3rd left permanent magnet (4.5) and the 3rd right permanent magnet (4.6)
It is all the same and opposite with the polarity arrangement mode of the described 1st left permanent magnet (4.1) and the 1st right permanent magnet (4.2).
2. the unmanned plane locking of propeller device of non-contact separate layout according to claim 1, which is characterized in that institute
Locking frame (2) are stated using cylindrical sides hollow design.
3. the unmanned plane locking of propeller device of non-contact separate layout according to claim 1, which is characterized in that institute
The setting quantity for stating support column (2.2) is 4；The bottom of each support column (2.2) curves inwardly and has mounting hole, into
And it is fixed with the motor cabinet (3.3) by screw and nut.
4. the unmanned plane locking of propeller device of non-contact separate layout according to claim 1, which is characterized in that the
3 left permanent magnets (4.5) and the 3rd right permanent magnet (4.6) are region of rejection permanent magnet, the 2nd left permanent magnet (4.3) and the 2nd right permanent magnet
It (4.4) is domain of attraction permanent magnet；The area and magnetic force of region of rejection permanent magnet are all larger than domain of attraction permanent magnet；Region of rejection permanent magnet is
It is rectangular；Domain of attraction permanent magnet is circle.
5. the unmanned plane locking of propeller device of non-contact separate layout according to claim 1, which is characterized in that forever
Magnet group (4) is with corresponding permanent magnet installation position using glued fixed form.
6. the unmanned plane locking of propeller device of non-contact separate layout according to claim 1, which is characterized in that forever
Each permanent magnet in magnet group (4) uses neodymium iron boron magnetic body.
7. the unmanned plane locking of propeller device of non-contact separate layout according to claim 1, which is characterized in that institute
Locking frame (2) are stated using aluminum alloy material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820845202.XU CN208233347U (en) | 2018-06-01 | 2018-06-01 | The unmanned plane locking of propeller device of non-contact separate layout |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820845202.XU CN208233347U (en) | 2018-06-01 | 2018-06-01 | The unmanned plane locking of propeller device of non-contact separate layout |
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| CN208233347U true CN208233347U (en) | 2018-12-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108482646A (en) * | 2018-06-01 | 2018-09-04 | 西北工业大学 | The unmanned plane locking of propeller device and locking means of non-contact separate layout |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108482646A (en) * | 2018-06-01 | 2018-09-04 | 西北工业大学 | The unmanned plane locking of propeller device and locking means of non-contact separate layout |
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