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WO2017177406A1 - Dispositif de serrage de pales, hélice à pales repliables, unité d'alimentation et véhicule aérien sans pilote - Google Patents

Dispositif de serrage de pales, hélice à pales repliables, unité d'alimentation et véhicule aérien sans pilote Download PDF

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Publication number
WO2017177406A1
WO2017177406A1 PCT/CN2016/079214 CN2016079214W WO2017177406A1 WO 2017177406 A1 WO2017177406 A1 WO 2017177406A1 CN 2016079214 W CN2016079214 W CN 2016079214W WO 2017177406 A1 WO2017177406 A1 WO 2017177406A1
Authority
WO
WIPO (PCT)
Prior art keywords
paddle
spacers
spacer
blade
folding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/079214
Other languages
English (en)
Chinese (zh)
Inventor
丘力
吴旭民
吴晓龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SZ DJI Technology Co Ltd
Original Assignee
SZ DJI Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SZ DJI Technology Co Ltd filed Critical SZ DJI Technology Co Ltd
Priority to PCT/CN2016/079214 priority Critical patent/WO2017177406A1/fr
Priority to CN201680004279.8A priority patent/CN107108028B/zh
Publication of WO2017177406A1 publication Critical patent/WO2017177406A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/02—Hub construction
    • B64C11/04—Blade mountings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/04—Helicopters
    • B64C27/08—Helicopters with two or more rotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/04—Helicopters
    • B64C27/12—Rotor drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/46—Blades
    • B64C27/473—Constructional features
    • B64C27/50—Blades foldable to facilitate stowage of aircraft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U10/00—Type of UAV
    • B64U10/10—Rotorcrafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U30/00—Means for producing lift; Empennages; Arrangements thereof
    • B64U30/20—Rotors; Rotor supports

Definitions

  • the present invention relates to the field of drones, and more particularly to a paddle for folding a paddle, a folding paddle, a power kit having the folding paddle, and a drone using the power kit.
  • the propeller on the drone is a key component of the drone that is used to convert the rotation of the motor or engine shaft of the drone into thrust or lift.
  • the wear between the paddle and the blade is large, and the blade is easy to loose, resulting in a large noise.
  • a paddle for folding paddles for holding a paddle of a folding paddle characterized in that the paddle comprises:
  • a lower paddle clamp disposed opposite to the upper paddle clamp; a clamping space for clamping a connection end of the blade is formed between the upper paddle clamp and the lower paddle clamp;
  • the spacer provides a resilient abutting force to the connecting end of the blade to cause the paddle to elastically clamp the blade.
  • a folding paddle comprising:
  • a blade including a connection
  • a paddle for gripping the paddle including an upper paddle, a lower paddle disposed opposite the upper paddle, and a spacer, the upper paddle and the lower paddle Forming a clamping space for clamping a connecting end of the blade, the spacer abutting between the connecting end of the blade and at least one of the upper paddle and the lower paddle, The spacer provides a resilient abutting force to the connecting end of the blade to cause the paddle to elastically grip the blade.
  • a power kit that includes:
  • a folding paddle fixed to the drive member including a blade and a paddle, the blade including a connecting end, the paddle including an upper paddle, a lower paddle disposed opposite the upper paddle, and a spacer, a clamping space for clamping a connecting end of the blade is formed between the upper paddle and the lower paddle, the spacer abuts at a connecting end of the blade and the upper paddle And between at least one of the lower paddles, the spacer provides a resilient abutting force to the connecting end of the paddle to cause the paddle to elastically grip the paddle.
  • a drone that includes:
  • the power kit connected to the end of the arm away from the fuselage, the power kit includes a driving member and a folding paddle fixed to the driving member, the folding paddle including a blade and a paddle,
  • the paddle includes a connecting end, the paddle includes an upper paddle, a lower paddle disposed opposite the upper paddle, and a spacer formed between the upper paddle and the lower paddle Holding a clamping space of the connecting end of the blade, the spacer abuts between the connecting end of the blade and at least one of the upper paddle and the lower paddle, the spacer provides a elasticity Abutting force is applied to the connecting end of the blade to cause the paddle to elastically grip the blade.
  • the present invention provides a paddle, a folding paddle, a power kit and a drone, wherein the spacer abuts the connecting end of the blade and the upper paddle and the lower paddle Between at least one of them, and providing an elastic abutting force to the connecting end of the blade, so that the paddle elastically clamps the blade, thereby preventing the blade from loosening and avoiding the problem of large noise.
  • FIG. 1 is a perspective view of a folding paddle provided by an embodiment of the present invention.
  • FIG. 2 is a top plan view of the folding paddle of FIG. 1.
  • Fig. 3 is a cross-sectional view taken along line III-III of Fig. 1.
  • FIG. 4 is a perspective view of a drone provided in an embodiment of the present invention.
  • a component when referred to as being "fixed” to another component, it can be directly on the other component or the component can be present.
  • a component When a component is considered to "connect” another component, it can be directly connected to another component or possibly a central component.
  • a component When a component is considered to be “set to” another component, it can be placed directly on another component or possibly with a centered component.
  • the terms of the upper and lower orientations appearing in the present embodiment are based on the normal operation posture of the folding paddle and the aircraft after the folding paddle is mounted on the aircraft, and should not be considered as limiting. .
  • the folding paddle 10 provided by the embodiment of the present invention includes a paddle 11 and a paddle 15 .
  • the paddle clamp 11 is used to hold the paddle 15 .
  • the paddle 11 includes an upper paddle 101, a lower paddle 103, a paddle shaft 13, and a spacer 17.
  • the lower paddle clamp 103 and the upper paddle clamp 101 are fixed to each other.
  • the upper paddle 101 is spaced apart from the lower paddle 103.
  • a clamping space for gripping the connection end of the blade 15 is formed between the upper paddle 101 and the lower paddle 103.
  • the paddle shaft 13 is provided with a spacer 17 and a paddle 15 , and two ends of the paddle shaft 13 are respectively connected to the upper paddle 101 and the lower paddle 103 to connect the paddle 15 and the paddle
  • the clips 11 are connected and the spacers 17 are disposed between the paddles 15 and the paddles 11.
  • the paddle 11 includes a shaft portion 111 and a connecting portion 114.
  • the number of the shaft portions 111 is one, and the number of the connection portions 114 is two.
  • the shaft portion 111 is located in the middle of the paddle 11 .
  • the connecting portion 114 is located at opposite ends of the paddle 11 .
  • the connecting portion 114 is symmetrical about the center of the shaft portion 111.
  • the shaft joint 111 is used to connect the folding paddle 10 to a driving member.
  • the connecting portion 114 is for connecting the paddle 11 to the paddle 15 .
  • the number of the connecting portions 114 may also vary according to the number of the blades 15, for example, the number of the connecting portions 114 may be three, four or other numbers, preferably A plurality of the connecting portions are centered on the center of the shaft connecting portion 111, and each two adjacent connecting portions 114 are spaced apart by the same arc.
  • the upper paddle 101 includes an upper shaft portion 1111, an upper connecting portion 1141, and an upper locking portion 1171.
  • the upper shaft connecting portion 1111 is one, and the upper connecting portion 1141 and the upper locking portion 1171 are each two.
  • the upper shaft joint 1111 is located in the middle of the upper paddle 101.
  • the upper connecting portion 1141 is located at opposite ends of the upper paddle 101.
  • the upper locking portion 1171 is located at two sides of the upper shaft connecting portion 1111 and between the two upper connecting portions 1141. Specifically, the upper locking portion 1171 and the upper connecting portion 1141 are respectively centrally symmetric with respect to the upper shaft connecting portion 1111.
  • the number of the upper connecting portions 1141 may be plural, and the center of the upper connecting portion 1111 is centered, and the interval between each two adjacent upper connecting portions 1141 is spaced. The same curvature.
  • the upper locking portion 1171 is in one-to-one correspondence with the upper connecting portion 1141.
  • the upper paddle 101 includes opposing upper opposing faces 1011 and upper opposing faces 1012.
  • the upper abutment portion 1111 includes a shaft-engaging boss 1112 that protrudes from the upper opposing surface 1011 in a direction away from the upper facing surface 1012.
  • the shaft connecting protrusion 1112 is axially opened with an upper shaft receiving hole 1113.
  • the upper shaft receiving hole 1113 is a blind hole that penetrates the surface of the upper connecting surface 1012 away from the shaft connecting protrusion 1112.
  • the upper connecting portion 1141 includes a receiving groove 1142 formed by recessing from the upper facing surface 1011 toward the upper back facing surface 1012.
  • the middle portion of the receiving groove 1142 protrudes from the bottom surface thereof in a direction away from the upper back surface 1012.
  • the upper connecting protrusion 1143 is axially opened with an upper connecting hole 1144.
  • the upper connecting hole 1144 is a blind hole penetrating the surface of the upper connecting protrusion 1143 away from the upper back surface 1012.
  • the upper locking portion 1171 includes a locking stud 1172 protruding from the upper facing surface 1011 away from the upper back surface 1012.
  • the locking protrusion 1172 is axially opened with an upper locking hole 1173.
  • the upper locking hole 1173 is a through hole penetrating the upper back surface 1012 and the locking protrusion 1172 facing away from the surface of the upper back surface 1012 .
  • the upper locking hole 1173 is a two-stage stepped hole.
  • the aperture of the upper locking hole 1173 near the upper back surface 1012 is larger than the aperture away from the upper back surface 1012.
  • the height of the locking protrusion 1172 protruding from the upper opposing surface 1011 is greater than the height of the protruding post 1112 protruding from the upper facing surface 1011.
  • the lower paddle 103 includes a lower fixing portion 104 and a lower connecting portion 1145.
  • the lower fixing portion 104 is one, and the lower connecting portion 1145 is two.
  • the lower fixing portion 104 is located at a middle portion of the lower paddle 103.
  • the lower connecting portion 1145 is located at opposite ends of the lower paddle 103.
  • the lower connecting portion 1145 is centrally symmetrical with respect to the lower fixing portion 104.
  • the lower connecting portion 1145 is disposed opposite to the upper connecting portion 1141 to constitute the connecting portion 114.
  • the lower fixing portion 104 is disposed opposite to the upper shaft connecting portion 1111 to constitute the shaft connecting portion 111.
  • the number of the lower connecting portions 1145 may be multiple, and the center of the lower fixing portion 104 is centered, and the interval between each two adjacent lower connecting portions 1145 is the same.
  • the lower paddle 103 includes a lower lower facing surface 1031 and a lower back facing surface 1032.
  • the lower opposing surface 1031 is disposed to face the upper opposing surface 1011.
  • the lower connecting portion 1145 includes a lower connecting post 1146 protruding from the lower opposing surface 1031 in a direction away from the lower back surface 1032.
  • the lower connecting protrusion 1146 is axially opened with a lower connecting hole 1147.
  • the lower connecting hole 1147 is a through hole penetrating the surface of the lower back surface 1032 and the lower connecting protrusion 1146 away from the lower back surface 1032.
  • the lower connecting stud 1146 corresponds to the upper connecting stud 1143.
  • the lower connection hole 1147 is disposed in alignment with the upper connection hole 1144.
  • the lower connecting portion 1145 further includes a lower receiving groove that is recessed from the lower facing surface 1031 toward the lower back facing surface 1032.
  • the lower fixing portion 104 includes a fixing post 1041 protruding from the lower opposing surface 1031 in a direction away from the lower back surface 1032.
  • the fixed post 1041 includes a top surface 1042 that faces away from the lower back face 1032.
  • the lower fixing portion 104 includes a lower shaft receiving hole 1115 and a locking groove 1175 which are opened from the top surface 1042 toward the lower back surface 1032.
  • the lower shaft receiving hole 1115 is one
  • the locking groove 1175 is two.
  • the lower shaft receiving hole 1115 is located at a middle portion of the lower fixing portion 104 and is disposed to be aligned with the upper shaft connecting hole 1113.
  • the locking slots 1175 are located on opposite sides of the lower shaft receiving hole 1115 and are disposed in one-to-one correspondence with the locking protrusions 1172.
  • the lower shaft receiving hole 1115 is a through hole penetrating the top surface 1042 and the lower back surface 1032.
  • the locking slot 1175 is configured to receive the locking protrusion 1172.
  • the diameter of the locking groove 1175 is slightly larger than the diameter of the locking protrusion 1172.
  • a lower locking hole 1176 is defined in the bottom of the locking groove 1175.
  • the lower locking hole 1176 extends through the lower back facing surface 1032.
  • the lower locking hole 1176 is disposed in alignment with the upper locking hole 1173.
  • the lower fixing portion 104 further includes a positioning groove 1043 opened from the lower back surface 1032 to the top surface 1042.
  • the positioning slots are two.
  • the positioning slot 1043 is located at two sides of the lower shaft receiving hole 1115 and between the two lower locking holes 1176.
  • the positioning groove 1043 is used for aligning the folding paddle 10 to a driving member.
  • the locking protrusion 1172 cooperates with the locking groove 1175, and the upper locking hole 1173 and the lower locking hole 1176 cooperate with a locking member (not shown) to make the upper paddle 101 It is fixed to the lower paddle clamp 103.
  • the locking protrusion 1172 is abutted and fixed to the locking groove 1175, thereby defining the height of the clamping space, and avoiding the height of the clamping space by screw locking. The looseness of the paddle 15 caused by the change in the height of the clamping space due to the looseness of the screw.
  • the upper shaft receiving hole 1113 and the lower shaft connecting hole 1115 cooperate with a shaft joint (not shown) to fix the folding paddle 10 to the driving member.
  • the paddle 11 can be a unitary structure.
  • the upper locking portion 1171, the locking groove 1175, the lower locking hole 1176, and the lock may be omitted.
  • the locking groove may be located at the upper locking portion.
  • the locking stud is located at the lower fixing portion.
  • the number of the paddle shafts 13 corresponds to the number of the connecting portions 114.
  • the paddle shaft 13 is bored in the connecting portion 114.
  • the paddle shaft 13 is bored from the lower connecting hole 1147 and extends into the upper connecting hole 1144.
  • the paddle shaft 13 has an interference fit with the lower connecting hole 1147 and is in clearance engagement with the upper connecting hole 1144.
  • the number of the blades 15 may correspond to the number of the connecting portions 114.
  • the paddle 15 is connected to the connecting portion 114 of the paddle 11 .
  • the paddle 15 includes a connecting end 151 and a blade 153 extending from the connecting end 151.
  • the connecting end 151 is connected to the connecting portion 114 to connect the paddle 15 with the paddle 11 .
  • the connecting end 151 defines a connecting hole 1511 corresponding to the upper connecting hole 1144 and the lower connecting hole 1147.
  • the paddle shaft 13 also passes through the lower connecting hole 1147, the connecting hole 1511 and the upper connecting hole 1144 to connect the paddle 15 with the paddle 11 .
  • the spacer 17 abuts between the connecting end 151 of the paddle 15 and at least one of the upper paddle 101 and the lower paddle 103.
  • the spacer 17 provides a resilient abutting force to the connecting end 151 of the paddle 15 to cause the paddle 11 to elastically grip the paddle 15.
  • the number of the spacers 17 is twice the number of the connecting portions 114.
  • the spacer 17 is located between the upper and lower sides of the paddle 15 and the upper connecting portion 1141 and the lower connecting portion 1145 of the paddle 11 .
  • the spacer 17 isolates the paddle 11 from the paddle 15.
  • the number of the spacers 17 is the same as the number of the connecting portions 114.
  • the spacers 17 are in one-to-one correspondence with the connecting portion 114.
  • the spacer 17 is located between the paddle 15 and the paddle 11 . Specifically, the spacer 17 is located between the paddle 15 and the upper connecting portion 1141 of the paddle 11 or the lower connecting portion 1145 of the paddle 15 and the paddle 11 .
  • the spacer 17 may include a spacer and an elastic member.
  • the gasket can be used to reduce the friction of the blade in the clamping space and improve the service life of the blade; the elastic member is used for damping the blade and leaving a space for the assembly of the blade.
  • the spacer 17 includes a spacer set 171 and an elastic member 173.
  • the shim set 171 includes two shim 1711 that are placed in contact with each other between the paddle 15 and the upper paddle 101 or the lower paddle 103.
  • the two spacers 1711 abut each other and are relatively movable.
  • One of the spacers 1711 can be stationary relative to the upper paddle 101 or the lower paddle 103, and the other of the spacers 1711 can be stationary relative to the paddle 15 so that the two spacers 1711 are in place
  • the blade 15 is relatively rotated with respect to the upper paddle 101 or/and the lower paddle 103.
  • one of the spacers 1711 is in contact with the elastic member 173, and the other spacer 1711 is in contact with the blade 15.
  • the static friction between the spacer 1711 and the elastic member 173 and the static friction between the spacer 1711 and the paddle 15 are greater than the static friction between the two spacers 1711.
  • one of the spacers 1711 abuts the elastic member 173, and the other one of the spacers 1711 abuts the upper paddle 101 or the lower paddle 103.
  • the static friction between the spacer 1711 and the upper paddle 101 or the lower paddle 103 is greater than the static friction between the two spacers 1711.
  • one of the spacers 1711 is fixedly connected to the upper paddle 101 or the lower paddle 103 by a connecting member, so that one of the spacers can be opposite to the upper paddle.
  • the clip 101 or the lower paddle 103 is stationary.
  • Another one of the spacers 1711 can be fixedly coupled to the paddle 15 by a connector to enable the other of the spacers 1711 to be stationary relative to the paddle 15.
  • the manner of fixing the spacer 1711 with the upper paddle 101 or the lower paddle 103 or the paddle 15 is not limited to the manner of passing through the connector.
  • the The fixing between the spacer 1711 and the upper paddle 101 or the lower paddle 103 or the paddle 15 can be achieved by a concave-convex fit, a hook-and-slot engagement or an adhesive.
  • the spacer group 171 is closer to the connection end 151 of the blade 15 than the elastic member 173.
  • the elastic member 173 is closer to the connecting portion 114 of the paddle 11 than the spacer group 171.
  • the elastic member 173 and the spacer group 171 are attached to each other.
  • the elastic member 173 is closer to the connecting end 151 of the blade 15 than the spacer group 171.
  • the spacer group 171 is closer to the connecting portion 114 of the paddle 11 than the elastic member 173.
  • the spacer group 171 includes two spacers 1711 made of the same material.
  • the gasket 1711 can be made of a wear-resistant gasket made of a material such as polytetrafluoroethylene, wear-resistant metal, alloy, or ceramic. It can be understood that in other embodiments, the spacer 1711 can also be a self-lubricating gasket.
  • the spacers 1711 are each provided with a through hole 1712 through which the paddle shaft 13 is bored.
  • the through hole 1712 is aligned with the connecting hole 1511, the upper connecting hole 1144, and the lower connecting hole 1147.
  • the two sheets of the spacers 1711 are bonded to each other.
  • the spacer set 171 can include a plurality of spacers made of the same material.
  • the material of the gasket 1711 can be different gaskets.
  • the elastic member 173 provides a resilient abutting force to the connecting end 151 of the paddle 15 to cause the paddle 11 to elastically grip the paddle 15.
  • the elastic member 173 is made of an elastic material.
  • the elastic member 173 is made of silica gel. It can be understood that the elastic member 173 can also be an elastic structure such as a rubber washer, a spring, a spring, or the like.
  • the elastic member 173 is received in the receiving groove 1142.
  • the elastic member 173 includes a coupling groove 1731 coupled to the upper connecting protrusion 1143 and/or the lower connecting protrusion 1146.
  • the coupling groove 1731 cooperates with the upper connecting protrusion 1143 and/or the lower connecting protrusion 1146 to facilitate the alignment of the elastic member 173 with the upper connecting portion 1141 and/or the lower connecting portion 1145.
  • a through hole 1732 is formed in the bottom of the coupling groove 1731 for the paddle shaft 13 to pass through. The through hole 1732 is aligned with the through hole 1712, the connecting hole 1511, the upper connecting hole 1144, and the lower connecting hole 1147.
  • the static friction between the elastic member 173 and the paddle 11 and the spacer group 171, and the static friction between the spacer group 171 and the paddle 11 are greater than
  • the static friction between the spacers 1711 of the spacer group 171 the relative motion occurs between the spacers 1711 of the spacer group 171, and since the friction coefficient between the spacers 1711 is similar, it is compared with the existing ones.
  • the wear between the paddle and the blade is reduced.
  • one spacer 1711 of the spacer group 171 is fixed to the paddle 15
  • another spacer 1711 of the spacer group 171 is fixed to the paddle 11
  • the elastic member 173 is fixedly coupled between the paddle 11 and the spacer 1711 fixed to the paddle 11 . It can be understood that in other embodiments, the elastic member 173 can be omitted.
  • one spacer of the spacer group 171 is fixed on the blade 15, and another spacer 1711 of the spacer group 171. It is fixed to the paddle clamp 11. Since friction occurs between the spacers 1711, the wear between the spacers 1711 can be made smaller than the wear between the spacers 1711 and the paddles 15 or with the paddles 11.
  • the number of the spacers 17 is the same as the number of the connecting portions 114.
  • Each of the spacers 17 includes a spacer set 171 and an elastic member 173.
  • the spacer group 171 and the elastic member 173 are respectively located on upper and lower sides of the blade 15 .
  • an embodiment of the present invention further provides a drone 100 including a body 20 and a power package 30 .
  • the body 20 includes a body 21 and an arm 22 .
  • the arm 22 is coupled to the body 21.
  • the power pack 30 is fixed to an end of the arm 22 away from the body 21.
  • the power pack 30 includes the above-described folding paddle 10 and a driving member 31.
  • the driving member 31 is used to drive the folding paddle 10 to rotate.
  • the driving member 31 may be a motor or an engine or the like.
  • the drive member 31 includes a mounting surface.
  • the folding paddle 10 is mounted on a mounting surface of the drive member 31.
  • the lower back face 1032 of the paddle 11 is in contact with the mounting surface.
  • the paddle shaft 13 abuts against the mounting surface.
  • the driving member 31 includes a shaft hole (not shown) and a locking hole (not shown) which are opened from the mounting surface facing the driving member 31.
  • the number of the shaft holes is one, and the number of the locking holes is two.
  • the locking holes are located on both sides of the shaft hole.
  • the shaft hole is aligned with the upper shaft hole 1113 and the lower shaft hole 1115.
  • the shaft hole, the lower shaft hole 1115 and the upper shaft hole 1113 are engaged with the shaft joint to fix the folding paddle 10 to the driving member.
  • the locking hole is aligned with the lower locking hole 1176 and the upper locking hole 1173.
  • the upper locking hole 1173, the lower locking hole 1176, the locking hole cooperate with the locking body to fix the upper paddle 101 and the lower paddle 103, and at the same time, the folding paddle 10 is Fixing on the drive member provides assistance.
  • the utility model provides a paddle, a folding paddle, a power kit and a drone, wherein the spacer abuts on the connecting end of the blade and the upper paddle and the lower paddle between at least one of the clips, the spacer includes two spacers that are placed against each other between the paddle and the upper paddle or the lower paddle, the two pads abutting each other Connected and movable relative to each other, wherein one of the spacers can be stationary relative to the upper or lower paddles, and the other of the spacers can be stationary relative to the blade, such that the two spacers are The blades rotate relative to each other when the upper paddles and/or the lower paddles rotate, so that relative rotation occurs between the two pads, which can slow the wear between the paddles and the paddles, thereby prolonging Service life.
  • the paddle and the blade are connected by the paddle shaft, and the upper paddle and the lower paddle are abutted and fixed by the protrusion and the groove, the height of the clamping space is limited, and the passage is avoided.
  • the screw pre-tightens the paddle and the blade, the screw is loose or the gasket is worn and the blade is loose.
  • the lift of the blade causes the blade to tilt axially with respect to the paddle, and a bending moment is generated, which can be adapted to the blade by the deformation of the elastic member.
  • the swaying ensures that the gasket can wear evenly.
  • the elastic member is disposed between the paddle and the blade, the rigid connection between the blade and the paddle is avoided, and the elastic member fastens the blade to the paddle. Absorbs vibrations on the blades, reduces noise during blade operation, and protects the blades, extending the life of the blades.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Remote Sensing (AREA)
  • Clamps And Clips (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

L'invention concerne un dispositif de serrage de pales (11) pour une hélice à pales repliables, une hélice à pales repliables pourvue de ce dispositif, une unité d'alimentation, ainsi qu'un véhicule aérien sans pilote. Le dispositif de serrage de pales (11) selon l'invention sert à fixer et maintenir les pales (15) d'une hélice à pales repliables. Le dispositif de serrage de pales (11) selon l'invention comprend une pièce de serrage de pales supérieure (101) et une pièce de serrage de pales inférieure (103) disposées opposées l'une de l'autre, à un certain intervalle ; des espaces de serrage destinés à serrer des extrémités de raccord (151) des pales (15) sont formés entre la pièce de serrage de pales supérieure (101) et la pièce de serrage de pales inférieure (103) ; des entretoises (17) venant en butée entre les extrémités de raccord (151) des pales et au moins la pièce de serrage de pales supérieure (101) ou la pièce de serrage de pales inférieure (103) ; les entretoises (17) fournissant une force de butée élastique aux extrémités de raccord (151) des pales, de sorte que le dispositif de serrage de pales (11) serre élastiquement les pales (15). Comme les entretoises (17) viennent en butée entre les extrémités de raccord (151) des pales (15) et au moins la pièce de serrage de pales supérieure (101) ou la pièce de serrage de pales inférieure (103) et qu'elles fournissent une force de butée élastique aux extrémités de raccord (151) des pales (15), le dispositif de serrage de pales (11) serre élastiquement les pales (15), ce qui empêche leur desserrement et permet d'éviter un bruit fort.
PCT/CN2016/079214 2016-04-13 2016-04-13 Dispositif de serrage de pales, hélice à pales repliables, unité d'alimentation et véhicule aérien sans pilote Ceased WO2017177406A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2016/079214 WO2017177406A1 (fr) 2016-04-13 2016-04-13 Dispositif de serrage de pales, hélice à pales repliables, unité d'alimentation et véhicule aérien sans pilote
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CN112706917A (zh) * 2021-01-15 2021-04-27 郑州金创工程设计有限公司 一种测绘用旋翼无人机螺旋桨组件
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CN107600402B (zh) * 2017-09-27 2024-05-14 歌尔科技有限公司 一种旋翼组件及飞行器
CN108033005A (zh) * 2017-10-16 2018-05-15 顺丰科技有限公司 一种桨夹与折叠桨
CN107891968B (zh) * 2017-12-19 2024-06-07 深圳市道通智能航空技术股份有限公司 一种折叠螺旋桨、动力组件及无人机
CN108928484A (zh) * 2018-07-17 2018-12-04 西安羚控电子科技有限公司 一种高效型无人机折叠桨叶和固定桨夹
CN209209043U (zh) * 2018-11-20 2019-08-06 深圳市大疆创新科技有限公司 动力装置及无人机
WO2021016881A1 (fr) * 2019-07-30 2021-02-04 深圳市大疆创新科技有限公司 Ensemble de puissance et véhicule aérien sans pilote
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CN111874250B (zh) * 2020-07-31 2024-07-02 复亚智能科技(太仓)有限公司 一种无人机户外作业设备
CN112249304A (zh) * 2020-10-27 2021-01-22 南昌三瑞智能科技有限公司 一种可锁定的折叠桨叶及无人飞行器
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