WO2016183807A1 - Amortisseur de vibrations, plateforme de suspension à cardan et véhicule aérien sans pilote utilisant la plateforme de suspension à cardan - Google Patents

Amortisseur de vibrations, plateforme de suspension à cardan et véhicule aérien sans pilote utilisant la plateforme de suspension à cardan Download PDF

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Publication number
WO2016183807A1
WO2016183807A1 PCT/CN2015/079310 CN2015079310W WO2016183807A1 WO 2016183807 A1 WO2016183807 A1 WO 2016183807A1 CN 2015079310 W CN2015079310 W CN 2015079310W WO 2016183807 A1 WO2016183807 A1 WO 2016183807A1
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WO
WIPO (PCT)
Prior art keywords
air bag
hole
vibration damping
damping device
sealing
Prior art date
Application number
PCT/CN2015/079310
Other languages
English (en)
Chinese (zh)
Inventor
肖文龙
陈星元
张永生
李宏举
Original Assignee
深圳市大疆创新科技有限公司
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.)
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Publication date
Application filed by 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Priority to CN201580011417.0A priority Critical patent/CN106068226B/zh
Priority to PCT/CN2015/079310 priority patent/WO2016183807A1/fr
Publication of WO2016183807A1 publication Critical patent/WO2016183807A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
    • F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
    • F16F7/108—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted on plastics springs

Definitions

  • the invention relates to a vibration damping device, a cloud platform and an unmanned aerial vehicle using the same.
  • vibration damping is usually performed by spring damping or air damping.
  • the simple spring damping can only filter the low-frequency sway of the fuselage, and maintain the stability of the gimbal to a certain extent, but it cannot filter the high-frequency vibration of the fuselage.
  • Simple air damping can filter the high-frequency vibration of the fuselage, but due to the characteristics of the rubber material, it can not carry the weight, and its own structure is difficult to maintain normal working condition under external force, so whether it is spring damping or rubber damping, two It is difficult to meet the demand for stability of the gimbal in the vibration damping structure.
  • the technical problem mainly solved by the embodiments of the present invention is to provide a vibration damping device with better vibration damping effect.
  • an embodiment of the present invention provides a vibration damping device including an air bag, the air bag is provided with an opening, a sealing member corresponding to the opening, and for sealing the opening, the sealing member is provided with a venting member; the elastic member is disposed in the airbag and abutting against the sealing member; and an adjusting member is disposed on the sealing member, the adjusting member is provided with a through hole corresponding to the air hole, and The vent hole communicates with the through hole to form a venting passage; wherein the air bag is inhaled and exhausted through the venting passage; the adjusting member is movable relative to the sealing member to make the venting hole
  • the through holes are partially staggered to adjust the size of the venting passage.
  • an embodiment of the present invention provides a vibration damping device including an air bag, and an air hole is provided at one end; an elastic member is disposed in the air bag and abuts the end portion of the air hole of the air bag; And the end portion of the air hole of the airbag is stacked, the adjusting member is provided with a through hole corresponding to the air hole, and the air hole communicates with the through hole to form a ventilation channel; wherein The air bag is inhaled and exhausted through the air passage; the adjusting member is movable relative to an end portion of the air hole of the air bag to partially displace the air hole and the through hole, thereby adjusting the air passage the size of.
  • an embodiment of the present invention provides a cloud platform including at least one vibration damping device, the vibration damping device including a vibration damping structure, the vibration damping structure including an airbag and being disposed in the airbag An elastic member for reducing vibration received by the gimbal, the elastic member for supporting the gimbal and reducing vibration received by the gimbal.
  • an embodiment of the present invention provides an unmanned aerial vehicle, including a cloud platform and a photographing device disposed on the pan/tilt, the pan/tilt head includes at least one vibration damping device, and the vibration damping device is disposed in the Between the cloud platform and the unmanned aerial vehicle, the vibration damping device includes a vibration damping structure, and the vibration damping structure includes an air bag and an elastic member disposed in the air bag, the air bag is used to reduce the pan/tilt head Subject to vibration from the unmanned aerial vehicle, the resilient member is used to support the pan/tilt and reduce vibrations from the unmanned aerial vehicle that the gimbal receives.
  • the unmanned aerial vehicle provided by the embodiment of the present invention is connected to the pan/tilt head through a vibration damping device, and the vibration damping device is provided with an air bag and an elastic member disposed in the air bag, thereby supporting the pan/tilt head through the elastic member, and passing through the air bag
  • the air outlet and the expansion and contraction of the elastic member thereby filter out the influence of the low frequency and high frequency vibration of the UAV on the pan/tilt, thereby ensuring the stability of the pan/tilt and the photographing device.
  • FIG. 1 is a perspective view of an unmanned aerial vehicle provided by a preferred embodiment of the present invention.
  • FIG. 2 is a schematic view showing the assembly of the head of the UAV shown in FIG. 1.
  • Figure 3 is a schematic view showing the assembly of the vibration damping device shown in the first embodiment of Figure 1.
  • Fig. 4 is an exploded perspective view of the vibration damping device shown in Fig. 3.
  • Figure 5 is a cross-sectional view of the camera of Figure 3 taken along V-V.
  • Figure 6 is an enlarged schematic view of the VI area of Figure 1.
  • Figure 7 is a cross-sectional view showing a vibration damping device according to a second embodiment of the present invention.
  • Figure 8 is a cross-sectional view showing a vibration damping device according to a third embodiment of the present invention.
  • Unmanned aerial vehicle 200 Camera 150 Yuntai 100 Damping device 50, 60, 70 Adjustment piece 61, 71 First connector 51, 62, 72 Through hole 622,722 Installation department 511 First mounting hole 5111, 621, 721 Connection 513 First fixing hole 5131 Second connector 53, 63, 73 Second mounting hole 531, 631, 731 Second fixing hole 533 Fastener 55, 65 First fixing plate 651 First through hole 6511 Second fixing plate 652 Third fixing plate 653 Second through hole 6521 Matching hole 551 Seals 57, 67, 77 First seal 571, 671, 771 Mounting hole 5710, 6710, 7710 Penetration 5711, 6711, 7711 First end 5712, 6712, 7712 Second end 5713, 6713, 7713 Sealing part 5714, 6714, 7714 Holder 5715, 6715, 7715 Stomata 5716, 6716, 7716 Extension 5717, 6717, 7717 Cont
  • a preferred embodiment of the present invention provides an unmanned aerial vehicle 200 including a pan/tilt head 100 and a photographing device 150 .
  • the photographing device 150 is disposed on the platform 100, and the pan/tilt head 100 includes at least one vibration damping device 50, and the pan/tilt head 100 is installed in the On the human aircraft 200.
  • the vibration damping device 50 is fixed between the pan/tilt head 100 and the body of the unmanned aerial vehicle 200, and is used for reducing the cloud platform 100 and the camera device 150 from the unmanned aerial vehicle 200. vibration.
  • the number of the vibration damping devices 50 may be one, two or more.
  • the vibration damping device 50 of the first preferred embodiment of the present invention includes a first connecting member 51, a second connecting member 53, a fixing member 55, a sealing member 57, an air bag 58, and an elastic member 59.
  • the first connecting member 51 is used for locking with the fuselage of the UAV 200
  • the second connecting member 53 is for locking with the PTZ 100
  • the fixing member 55 and the sealing member 57 cooperates to fix the air bag 58 between the first connecting member 51 and the second connecting member 53
  • the elastic member 59 is housed in the air bag 58.
  • the first connecting member 51 is substantially a plate-like structure including an integrally mounted mounting portion 511 and a connecting portion 513.
  • the mounting portion 511 is for mounting the air bag 58
  • the connecting portion 513 is for fixing the first connecting member 51 to the body of the UAV 200 .
  • the mounting portion 511 is substantially a square plate-like structure, and a first mounting hole 5111 is defined in the middle portion for mounting the air bag 58.
  • the connecting portion 513 is substantially a rectangular plate-like structure, and extends from one end of the mounting portion 511 toward the platform 100.
  • the connecting portion 513 defines two first fixing holes 5131.
  • the first fixing hole 5131 is for a screw or a pin to pass through to fix the connecting portion 513 on the platform 100 and fix the first connecting member 51 on the body of the UAV 200.
  • the number of the first fixing holes 5131 is not limited to the above number, and can be set as needed.
  • the second connecting member 53 is substantially a plate-like structure, and a second mounting hole 531 is defined in a substantially central portion thereof, and the second mounting hole 531 is configured to mount the air bag 58.
  • Two second fixing holes 533 are further defined in the second connecting member 53 for the screws or pins to pass through to fix the second connecting member 53 to the platform 100. Body.
  • the number of the second fixing holes 533 is not limited to the above number, and can be set as needed.
  • the number of the fixing members 55 is two, and the two fixing members 55 cooperate with the first connecting member 51 and the second connecting member 53 respectively to install the air bag 58. Between the first connecting member 51 and the second connecting member 53.
  • Each of the fixing members 55 is substantially an annular structure, and has a matching hole 551 in a substantially central portion thereof, and each of the matching holes 551 is respectively aligned with the first mounting hole 5111 or the second mounting hole 531.
  • the airbag 58 is fixed between the first connecting member 51 and the second connecting member 53 by passing through a screw or a pin.
  • the number of the fixing members 55 is not limited to the above-described number, and can be set as needed.
  • the seal 57 is used to seal the air bag 58.
  • the seal 57 includes a first seal 571 and a second seal 573, the first seal 571 and the second seal Pieces 573 are respectively disposed at opposite ends of the air bag 58.
  • the first sealing member 571 includes a through portion 5711 , a sealing portion 5714 , a holding portion 5715 , and an extending portion 5717 .
  • the through portion 5711 is disposed through the sealing portion 5714, the holding portion 5715, and the extending portion 5717, and the sealing portion 5714 and the extending portion 5717 are disposed at opposite ends of the holding portion 5715.
  • the through portion 5711 is for engaging with the first connecting member 51 to connect the first connecting member 51 and the first sealing member 571.
  • the through portion 5711 includes a first end 5712 and a second end 5713 at opposite ends of the holding portion 5715.
  • a mounting hole 5710 is further defined in the substantially central portion of the through portion 5711.
  • the mounting hole 5710 extends from the first end 5712 toward the second end 5713 and does not extend through the second end 5713.
  • the mounting hole 5710 is aligned with the first mounting hole 5111 so that a screw or a pin passes through to connect the first connecting member 51 and the first sealing member 571.
  • the sealing portion 5714 is annularly disposed outside the first end 5712 of the through portion 5711 for holding at an opening of the air bag 58 to seal one end of the air bag 58.
  • the holding portion 5715 is slightly larger than the sealing portion 5714.
  • the holding portion 5715 is received and held in the air bag 58.
  • the holding portion 5715 is further provided with an air hole 5716. When the air bag 58 is pressed, the air hole 5716 can slowly release the gas in the air bag 58 to buffer an external force impact.
  • the extending portion 5717 is annularly disposed on the outer side of the second end 5713 of the through portion 5711 and spaced apart from the periphery of the second end 5713, thereby forming an annular shape with the second end 5713.
  • the receiving space 5718 is configured to receive a portion of the elastic member 59.
  • the second sealing member 573 includes a holding end 5731 and a flange 5733 protruding from a side of the holding end 5731, and the flange 5733 is configured to cooperate with the second connecting member 53 to connect the The second connecting member 53 and the second sealing member 573.
  • a central portion of the flange 5733 defines a mounting hole 5734 extending from one end of the flange toward the holding end 5731 and not extending through the holding end 5731.
  • the second mounting hole 531 facilitates passage of a screw or a pin to connect the second connecting member 53 and the second sealing member 573.
  • the retaining end 5731 is an annular structure for mounting at the other end of the airbag 58 with respect to the first seal 571 to seal the other end of the airbag 58.
  • the holding end 5731 further defines a recessed annular receiving space 5732 with respect to one end of the flange 5733 to accommodate a portion of the elastic member 59.
  • the air bag 58 is used to charge air to filter and absorb high frequency vibrations from the fuselage of the UAV 200.
  • the air bag 58 is made of rubber to facilitate deformation to absorb or release gas.
  • the air bag 58 is a cavity structure that is open at both ends, and includes a body 581, a first end surface 583 and a second end surface 585 disposed at two ends of the body 581.
  • the body 581 includes a cavity 5811 for receiving a gas.
  • the first end surface 583 is opened with a first opening 5831 so that the first sealing member 571 passes through and is mounted on the air bag 58.
  • the first opening 5831 is sized to be different from the first sealing member 571.
  • the size of the sealing portion 5714 is equivalent.
  • the position of the body 581 near the first end surface 583 further forms an annular holding surface 5813.
  • the holding surface 5813 extends from the outer wall of the body 581 toward the cavity 5811 and has an opening 5812 in the middle.
  • the holding surface 5813 is recessed toward the first end surface 583 to form a holding space 5815 .
  • a second opening 5851 is defined in a substantially central position of the second end surface 585.
  • the size of the second opening 5851 is equivalent to the size of the flange 5733 of the second sealing member 573, and the card of the second sealing member 573
  • the size of the holding end 5731 is larger than the size of the second opening 5851.
  • the elastic member 59 is for supporting the air bag 58 to carry the weight of the pan/tilt head 100 and to filter low frequency vibrations from the unmanned aerial vehicle 200.
  • the elastic member 59 is a ring-shaped tower spring having a relatively high strength, and includes a first elastic end 591 and a second elastic end 593 disposed opposite to each other, and the first elastic end 591 The size is smaller than the size of the second elastic end 593.
  • the elastic member 59 is formed by spirally bending the second elastic end 593 toward the first elastic end 591.
  • the elastic member 59 is received in the cavity 5811 of the air bag 58 and is abutted between the first seal 571 and the second seal 573.
  • the elastic member 59 when the elastic member 59 is installed in the air bag 58, the first elastic end 591 of the elastic member 59 is received in the receiving space 5718 of the first sealing member 571 and resists the The second elastic end 593 is received in the accommodating space 5732 of the second sealing member 573 and abuts against the holding end 5731.
  • the air bag 58 may be assembled first, and then passed through a fixing member 55 through screws or pins.
  • the first connecting member 51 and the air bag 58 lock the one end of the air bag 58 to the first connecting member 51, and then sequentially pass through the other fixing member 55 by screws or pins, a second connecting member 53 and the air bag 58 to lock the other end of the air bag 58 to the second connecting member 53 and finally to lock the first connecting member 51 to the unmanned aerial vehicle 200
  • the second connecting member 53 is locked to the platform 100, and the vibration damping device 50 can be installed between the platform 100 and the unmanned aerial vehicle 200.
  • the weight of the PTZ 100 and the photographing device 150 is pulled down on the air bag 58 through the second connecting member 53.
  • the elastic member 59 in the airbag 58 supports the pan/tilt head 100 and the photographing device 150.
  • the elastic member 59 can be relieved by contraction or stretching. The large acceleration causes sloshing and impact on the platform 100 to absorb and filter low frequency vibrations from the UAV 200.
  • the air bag 58 Since the air bag 58 is placed with air, when the air bag 58 is subjected to an impact, the air bag 58 is deformed by an external force, and the gas in the air bag 58 is vented by the air hole 5716 on the first sealing member 571. Slowly overflowing, thereby converting an instantaneous large external force impact from the unmanned aerial vehicle 200 to continuously and slowly reducing the external force, thereby slowing the cloud platform 100 from receiving high frequency vibrations from the unmanned aerial vehicle 200; When the unmanned aerial vehicle 200 is flying smoothly, the external force from the unmanned aerial vehicle 200 disappears, and the airbag 58 gradually sucks in the gas through the air holes 5716 on the first sealing member 571 to recover the deformation. The cooperation of the elastic member airbag 58 and the elastic member 59 maintains the relative stability of the pan/tilt head 100 and the photographing device 150 on the unmanned aerial vehicle 200.
  • the structure of the vibration damping device 50 may be reversed according to the structure of the cloud platform 100 and the unmanned aerial vehicle 200, that is, the cloud platform 100 is hung on the reduction.
  • the vibration device 50 is coupled to the unmanned aerial vehicle 200 to achieve vibration damping.
  • damping device 50 can be disposed at any suitable location on the platform 100 and the UAV 200 as desired.
  • the second sealing member 573 can be omitted, and the second opening 5851 of the air bag 58 is directly disposed integrally with the second sealing member 573, and the second connecting member 53 and the air bag 58 are disposed.
  • the second end face 585 can be fixedly connected.
  • pan/tilt head 100 can also be applied to the unmanned aerial vehicle 200, and applied to other electric pan/tilt heads 100, such as an electric pan/tilt head for security shooting.
  • the vibration damping device 50 can be directly disposed at the The pan/tilt head 100 is described to reduce the vibration from the pan/tilt head 100 received by the imaging device 150.
  • a second preferred embodiment of the present invention provides a vibration damping device 60 for filtering and reducing vibration.
  • the damper device 60 includes an adjusting member 61, a second connecting member 63, a sealing member 67, an air bag 68, and an elastic member 69.
  • the seal member 67 is disposed at both ends of the air bag 68, and the air bag 58 is fixed between the adjusting member 61 and the second connecting member 63, and the elastic member 69 is housed in the air bag 68.
  • the adjustment member 61 is disposed at one end of the air bag 68 and is movable relative to the seal 67.
  • the adjusting member 61 includes a first connecting member 62 and a fixing member 65 for cooperating with the first connecting member 62 and the second connecting member 63 to fix the air bag 58 at the first Between the connector 62 and the second connector 63.
  • the first connecting member 62 is substantially centrally opened with a first mounting hole 621 for mounting the air bag 58.
  • a through hole 622 is further defined in the first connecting member 62 adjacent to the first mounting hole 621.
  • the second connecting member 63 defines a second mounting hole 631 at a substantially central position, and the second mounting hole 631 is for mounting the air bag 58.
  • the fixing member 65 includes a first fixing plate 651, a second fixing plate 652, and a third fixing plate 653, and the first fixing plate 651 and the second fixing plate 652 are used for the first connection
  • the second fixing plate 653 is for engaging with the second connecting member 63.
  • the first fixing plate 651 and the second fixing plate 652 are stacked, and the first fixing plate 651 is provided with a first through hole 6511, and the second fixing plate 652 is provided with a second through hole 6521.
  • the first through hole 6511 and the second through hole 6521 are configured to communicate with the through hole 622 on the first connecting member 62.
  • the sealing member 67 is for sealing the air bag 68.
  • the sealing member 57 includes a first sealing member 671 and a second sealing member 673, the first sealing member 671 and the second sealing member.
  • Pieces 673 are respectively disposed at opposite ends of the air bag 68.
  • the first sealing member 671 includes a through portion 6711 , a sealing portion 6714 , a holding portion 6715 , and an extending portion 6717 .
  • the through portion 6711 is disposed through the sealing portion 6714, the holding portion 6715, and the extending portion 6717, and the sealing portion 6714 and the extending portion 6717 are disposed at opposite ends of the holding portion 6715.
  • the through portion 6711 is for engaging with the first connecting member 62 to connect the first connecting member 62 and the first sealing member 671.
  • the through portion 6711 includes a first end 6712 and a second end 6713 at opposite ends of the holding portion 6715.
  • a mounting hole 6710 is further defined in the substantially central portion of the through portion 6711.
  • the mounting hole 6710 extends from the first end 6712 toward the second end 6713 and does not extend through the second end 6713.
  • the mounting hole 6710 is aligned with the first mounting hole 6111 to facilitate passage of a screw or pin to connect the first connecting member 62 and the first sealing member 671.
  • the sealing portion 6714 is annularly disposed outside the first end 6712 of the through portion 6711 for holding at an opening of the air bag 68 to seal one end of the air bag 68.
  • An annular slot 6179 is further formed between the sealing portion 6714 and the first end 6712 of the through portion 6711.
  • the size of the holding portion 6715 is slightly larger than the sealing portion 6714.
  • the holding portion 6715 is received and held in the air bag 68.
  • a small-sized air hole 6716 is further formed in the holding portion 6715, and the air hole 6716 penetrates through the slot 6179, so that the air bag 68 absorbs and releases gas through the air hole 6176. .
  • the extending portion 6717 is disposed outside the second end 6713 of the through portion 6711 and spaced apart from the periphery of the second end 6713, thereby forming a ring shape with the second end 6713.
  • the accommodating space 6718 is for accommodating a part of the elastic member 69.
  • the second sealing member 673 includes a holding end 6731 and a flange 6733 protruding from a side of the holding end 6731.
  • the flange 6733 is configured to cooperate with the second connecting member 63 to connect the The second connecting member 63 and the second sealing member 673.
  • a mounting hole 6734 is defined in a central portion of the flange 6733, and the mounting hole 6734 extends from one end of the flange toward the holding end 6731 and does not penetrate the holding end 6731.
  • the second mounting hole 631 facilitates passage of a screw or a pin to connect the second connecting member 63 and the second sealing member 673.
  • the retaining end 6731 is an annular structure for mounting at the other end of the airbag 68 with respect to the first seal 671 to seal the other end of the airbag 58.
  • the latching end 6731 further defines a recessed annular receiving space 6732 with respect to one end of the flange 6733 to accommodate a portion of the elastic member 69.
  • the air bag 68 is used to charge air to filter and absorb high frequency vibrations.
  • the air bag 68 is made of rubber to facilitate deformation to absorb or release gas.
  • the air bag 68 is a cavity structure with open ends, and includes a body 681, a first end surface 683 and a second end surface 685 disposed at two ends of the body 681.
  • the body 681 includes a cavity 6811 for housing a gas.
  • the first end surface 683 is provided with a first opening 6831 for the first sealing member 671 to pass through and be mounted on the air bag 68.
  • the size of the first opening 6831 is different from that of the first sealing member 671.
  • the size of the seal portion 6714 is equivalent.
  • the position of the body 681 near the first end surface 683 further forms an annular holding surface 6813.
  • the holding surface 6813 extends from the outer wall of the body 681 toward the cavity 6811 and has an opening 6812 in the middle.
  • the holding surface 6813 is recessed toward the first end surface 683 to form a holding space 6815.
  • a second opening 6851 is defined in a substantially central position of the second end surface 685.
  • the size of the second opening 6851 is equivalent to the size of the flange 6733 of the second sealing member 673, and the card of the second sealing member 673
  • the size of the holding end 6731 is larger than the size of the second opening 6851.
  • the first fixing plate 651, the second fixing plate 652, the first connecting member 62 and the first sealing member The first end 6712 of the through portion 6711 passes through and is received on the first mounting hole 621 of the first connecting member 62, the first fixing plate 651 and the second fixing plate 652.
  • a venting passage is formed between the 6521 to enable the bladder 58 to draw in or vent gas.
  • the first fixing plate 651 and/or the second fixing plate 652 slide or rotate relative to the first end surface 683 of the air bag 68, the first through hole 6511 and the second through hole Any one of the 6521 is partially offset from the air hole 6716, and the size of the air passage can be changed to adjust the intake or exhaust amount of the air bag 68, thereby adjusting the vibration damping effect of the air bag 68.
  • the ventilation passage becomes smaller, the intake air displacement of the airbag 68 becomes smaller, the vibration damping effect is enhanced; when the ventilation passage becomes larger, the intake air displacement of the airbag 68 becomes larger, Then the damping effect is correspondingly weakened.
  • the elastic member 69 is for supporting the air bag 68.
  • the elastic member 69 is a ring-shaped tower spring having a relatively high strength, and includes a first elastic end 691 and a second elastic end 693 which are oppositely disposed, and the first elastic end 691 The size is smaller than the size of the second elastic end 693.
  • the elastic member 69 is formed by spirally bending the second elastic end 693 toward the first elastic end 691.
  • the elastic member 69 is received in the cavity 6811 of the air bag 68 and is abutted between the first sealing member 671 and the second sealing member 673.
  • the elastic member 69 when the elastic member 69 is installed in the air bag 68, the first elastic end 691 of the elastic member 69 is received in the receiving space 6718 of the first sealing member 671 and resists the The second elastic end 693 is received in the accommodating space 6732 of the second sealing member 673 and abuts against the holding end 6731.
  • the first sealing member 671 can be omitted, and the first end surface 683 of the air bag 68 is directly disposed integrally with the first sealing member 671.
  • the end portion of the air bag 67 with respect to the air hole 6716 is moved to adjust the size of the air passage between the adjusting member 61 and the air bag 68, thereby adjusting the degree of vibration damping of the air bag 68.
  • a vibration damping device 70 includes an adjusting member 71, a second connecting member 73, a sealing member 77, an air bag 78, and an elastic member 79.
  • the seal member 77 is disposed at both ends of the air bag 78, and the air bag 78 is fixed between the adjusting member 71 and the second connecting member 73, and the elastic member 79 is housed in the air bag 78.
  • the adjusting member 71 is disposed at one end of the air bag 78 and is movable relative to the sealing member 77.
  • the adjusting member 71 includes a first connecting member 72, and the first connecting member 72 is substantially centrally opened with a first mounting hole 721 for mounting the air bag 78.
  • a through hole 722 is further defined in the first connecting member 72 adjacent to the first mounting hole 721.
  • the second connecting member 73 defines a second mounting hole 731 at a substantially central position, and the second mounting hole 731 is for mounting the air bag 78.
  • the seal 77 is used to seal the air bag 78.
  • the seal 77 includes a first seal 771 for sealing one end of the air bag 78.
  • the first sealing member 771 includes a through portion 7711 , a sealing portion 7714 , a holding portion 7715 , and an extending portion 7717 .
  • the through portion 7711 is disposed through the sealing portion 7714, the holding portion 7715, and the extending portion 7717, and the sealing portion 7714 and the extending portion 7717 are disposed at opposite ends of the holding portion 7715.
  • the through portion 7711 is for engaging with the first connecting member 72 to connect the first connecting member 72 and the first sealing member 771.
  • the through portion 7711 includes a first end 7712 and a second end 7713 at opposite ends of the holding portion 7715.
  • a substantially central portion of the through portion 7711 further defines a mounting hole 7710 extending from the first end 7712 toward the second end 7713 and not extending through the second end 7713.
  • Mounting holes 7710 are aligned with the through holes 722 to facilitate passage of screws or pins to connect the first connector 72 and the first seal 771.
  • the sealing portion 7714 is annularly disposed outside the first end 7712 of the through portion 7711 for holding at an opening of the air bag 78 to seal one end of the air bag 78.
  • An annular slot 7179 is further formed between the sealing portion 7714 and the first end 7712 of the through portion 7711.
  • the size of the holding portion 7715 is slightly larger than the sealing portion 7714.
  • the holding portion 7715 is received and held in the air bag 58.
  • the retaining portion 7715 further defines a small-sized air hole 5716.
  • the air hole 7716 penetrates with the slot 7179.
  • the air hole 7716 can be slow. The gas in the air bag 78 is released to buffer an external force impact.
  • the extending portion 7717 is disposed outside the second end 7713 of the through portion 7711 and spaced apart from the periphery of the second end 7713, thereby forming an annular shape with the second end 7713.
  • the receiving space 7718 is for receiving one end of the elastic member 79.
  • the air bag 78 is used to charge air to filter and absorb high frequency vibrations.
  • the air bag 78 is made of rubber to facilitate deformation to absorb or release gas.
  • the air bag 78 is a cavity structure that is open at both ends, and includes a body 781, a first end surface 783 and a second end surface 785 disposed at two ends of the body 781.
  • the body 781 includes a cavity 7811 for receiving a gas.
  • the first end surface 783 is opened with a first opening 7831 so that the first sealing member 771 passes through and is mounted on the air bag 78.
  • the size of the first opening 7831 is different from that of the first sealing member 771.
  • the size of the sealing portion 7714 is equivalent.
  • the position of the body 781 near the first end surface 783 further forms an annular holding surface 7813.
  • the holding surface 7813 extends from the outer wall of the body 781 toward the cavity 7811 and has an opening 7812 in the middle.
  • the holding surface 7813 is recessed toward the first end surface 783 to form a holding space 7815.
  • the second end surface 785 is a closed structure to prevent gas in the air bag 78 from overflowing.
  • a holding end 7851 is formed at the second end surface 785 for mounting the other end of the elastic member 79.
  • the first connecting member 72 and the first sealing member 77 are stacked, and the first end 7712 of the through portion 7711 passes through And being received on the first mounting hole 721 of the first connecting member 72, the first connecting member 72 is rotatably or slidably coupled to the first end 7712 of the through portion 7711.
  • a venting passage is formed between the air hole 7716, the slot 7719, and the through hole 722 to enable the air bag 78 to suck in or remove gas.
  • the through hole 722 is partially offset from the air hole 7716, and the size of the air passage can be changed.
  • the intake or exhaust amount of the airbag 78 is adjusted, and the damping effect of the airbag 78 is adjusted.
  • the ventilation passage becomes smaller, the intake and exhaust amount of the airbag 78 becomes smaller, the vibration damping effect is enhanced; when the ventilation passage becomes larger, the intake and exhaust amount of the airbag 78 becomes larger, Then the damping effect is correspondingly weakened.
  • the elastic member 79 is for supporting the air bag 78.
  • the elastic member 79 is a ring-shaped tower spring having a relatively high strength, and includes a first elastic end 791 and a second elastic end 793 disposed opposite to each other, and the first elastic end 791 The size is smaller than the size of the second elastic end 793.
  • the elastic member 79 is formed by spirally bending the second elastic end 793 toward the first elastic end 791.
  • the elastic member 79 is received in the cavity 7811 of the air bag 78 and is abutted between the first seal 771 and the second seal 773.
  • the elastic member 79 when the elastic member 79 is installed in the air bag 78, the first elastic end 791 of the elastic member 79 is received in the receiving space 7718 of the first sealing member 771 and resists the The second elastic end 793 is abutted on the holding end 7751 of the second end surface 785 of the airbag 78 on the holding portion 7715.
  • the first sealing member 771 can be omitted, and the first end surface 783 of the airbag 78 is directly disposed integrally with the first sealing member 771.
  • the adjusting member 71 is movable relative to the end where the air hole 7716 of the air bag 78 is located, thereby adjusting the size of the air passage between the adjusting member 71 and the air bag 78, thereby adjusting the degree of vibration damping of the air bag 78.
  • the pan/tilt provided by the embodiment of the present invention is connected to the unmanned aerial vehicle through a vibration damping device, and the weight of the pan/tilt is supported by the elastic member of the vibration damping device, and filtered by the action of the air bag and the elastic member.
  • the low frequency and high frequency vibrations from the unmanned aerial vehicle are eliminated, which ensures the stability of the pan/tilt.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

Les modes de réalisation de la présente invention concernent un amortisseur de vibrations, comprenant une poche d'air, qui est pourvu d'une ouverture ; un joint d'étanchéité, qui correspond à l'ouverture, est utilisé pour rendre l'ouverture étanche, et est pourvu d'un trou d'air ; un élément élastique, qui est prévu à l'intérieur de la poche d'air et vient en butée contre le joint d'étanchéité ; et un élément d'ajustement, qui est chevauché par le joint d'étanchéité, et est pourvu d'un trou traversant correspondant au trou d'air, le trou d'air étant en communication avec le trou traversant pour former un canal de ventilation. La poche d'air aspire et évacue l'air à travers le canal de ventilation ; l'élément d'ajustement est mobile par rapport au joint d'étanchéité de manière à ce que le trou d'air ne soit pas chevauché par une partie du trou traversant, ce qui permet d'ajuster la taille du canal de ventilation. L'amortisseur de vibrations peut absorber et réduire les vibrations au moyen de la poche d'air et de l'élément élastique. La présente invention concerne en outre une plateforme de suspension à Cardan et un véhicule aérien sans pilote auquel est appliqué l'amortisseur de vibrations.
PCT/CN2015/079310 2015-05-19 2015-05-19 Amortisseur de vibrations, plateforme de suspension à cardan et véhicule aérien sans pilote utilisant la plateforme de suspension à cardan WO2016183807A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201580011417.0A CN106068226B (zh) 2015-05-19 2015-05-19 减振装置、云台及应用该云台的无人飞行器
PCT/CN2015/079310 WO2016183807A1 (fr) 2015-05-19 2015-05-19 Amortisseur de vibrations, plateforme de suspension à cardan et véhicule aérien sans pilote utilisant la plateforme de suspension à cardan

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PCT/CN2015/079310 WO2016183807A1 (fr) 2015-05-19 2015-05-19 Amortisseur de vibrations, plateforme de suspension à cardan et véhicule aérien sans pilote utilisant la plateforme de suspension à cardan

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CN109595294A (zh) * 2018-11-27 2019-04-09 珠海格力电器股份有限公司 一种减振装置及包含其的紧固件
CN112145623A (zh) * 2019-06-26 2020-12-29 舍弗勒技术股份两合公司 扭振减振器
CN114136294A (zh) * 2021-11-26 2022-03-04 山东省物化探勘查院 智能化三维地形测绘装置
CN115163730A (zh) * 2022-08-11 2022-10-11 珠海紫燕无人飞行器有限公司 一种减震装置及吊舱组件

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CN108082513A (zh) * 2016-11-23 2018-05-29 丘之鹏 用于无人机倾斜摄影系统的相机挂载装置
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CN107352039A (zh) * 2017-07-18 2017-11-17 歌尔股份有限公司 无人机及其摄像缓震机构
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CN107975556B (zh) * 2017-12-27 2024-04-12 深圳市道通智能航空技术股份有限公司 减震元件、减震装置、摄像组件及无人飞行器
CN110329525A (zh) * 2019-06-28 2019-10-15 深圳市道通智能航空技术有限公司 一种无人机及其组装方法
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WO2023173377A1 (fr) * 2022-03-17 2023-09-21 深圳市大疆创新科技有限公司 Tampon d'isolation de vibrations et plateforme mobile

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CN109595294A (zh) * 2018-11-27 2019-04-09 珠海格力电器股份有限公司 一种减振装置及包含其的紧固件
CN112145623A (zh) * 2019-06-26 2020-12-29 舍弗勒技术股份两合公司 扭振减振器
CN112145623B (zh) * 2019-06-26 2023-09-05 舍弗勒技术股份两合公司 扭振减振器
CN114136294A (zh) * 2021-11-26 2022-03-04 山东省物化探勘查院 智能化三维地形测绘装置
CN115163730A (zh) * 2022-08-11 2022-10-11 珠海紫燕无人飞行器有限公司 一种减震装置及吊舱组件

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