WO2018149039A1 - 一种负载自适应被动平衡上肢外骨骼 - Google Patents

一种负载自适应被动平衡上肢外骨骼 Download PDF

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Publication number
WO2018149039A1
WO2018149039A1 PCT/CN2017/084433 CN2017084433W WO2018149039A1 WO 2018149039 A1 WO2018149039 A1 WO 2018149039A1 CN 2017084433 W CN2017084433 W CN 2017084433W WO 2018149039 A1 WO2018149039 A1 WO 2018149039A1
Authority
WO
WIPO (PCT)
Prior art keywords
arm
boom
elbow joint
support rod
screw
Prior art date
Application number
PCT/CN2017/084433
Other languages
English (en)
French (fr)
Inventor
朱延河
张国安
李洪武
赵杰
Original Assignee
哈尔滨工业大学
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 哈尔滨工业大学 filed Critical 哈尔滨工业大学
Priority to US16/480,291 priority Critical patent/US11285069B2/en
Publication of WO2018149039A1 publication Critical patent/WO2018149039A1/zh

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25JMANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J9/00Programme-controlled manipulators
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H1/00Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
    • A61H1/02Stretching or bending or torsioning apparatus for exercising
    • A61H1/0274Stretching or bending or torsioning apparatus for exercising for the upper limbs
    • A61H1/0277Elbow
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25JMANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J17/00Joints
    • B25J17/02Wrist joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25JMANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J18/00Arms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25JMANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J19/00Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
    • B25J19/0008Balancing devices
    • B25J19/0012Balancing devices using fluidic devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25JMANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J9/00Programme-controlled manipulators
    • B25J9/0006Exoskeletons, i.e. resembling a human figure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25JMANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J9/00Programme-controlled manipulators
    • B25J9/0009Constructional details, e.g. manipulator supports, bases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25JMANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J9/00Programme-controlled manipulators
    • B25J9/10Programme-controlled manipulators characterised by positioning means for manipulator elements
    • B25J9/102Gears specially adapted therefor, e.g. reduction gears
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25JMANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J9/00Programme-controlled manipulators
    • B25J9/10Programme-controlled manipulators characterised by positioning means for manipulator elements
    • B25J9/106Programme-controlled manipulators characterised by positioning means for manipulator elements with articulated links
    • B25J9/1065Programme-controlled manipulators characterised by positioning means for manipulator elements with articulated links with parallelograms
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/12Driving means
    • A61H2201/1238Driving means with hydraulic or pneumatic drive
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/14Special force transmission means, i.e. between the driving means and the interface with the user
    • A61H2201/1454Special bearing arrangements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16Physical interface with patient
    • A61H2201/1602Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
    • A61H2201/1614Shoulder, e.g. for neck stretching
    • A61H2201/1616Holding means therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16Physical interface with patient
    • A61H2201/1602Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
    • A61H2201/1635Hand or arm, e.g. handle
    • A61H2201/1638Holding means therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16Physical interface with patient
    • A61H2201/1657Movement of interface, i.e. force application means
    • A61H2201/1676Pivoting
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/50Control means thereof
    • A61H2201/5058Sensors or detectors
    • A61H2201/5061Force sensors

Definitions

  • the present invention relates to an exoskeleton robot, and more particularly to a load adaptive passive balance upper limb exoskeleton
  • the upper extremity passive exoskeleton robot is favored by a large number of researchers because of its unique combination of man and machine.
  • the existing upper extremity passive exoskeleton is mostly spring-based to achieve balance, while in working condition After the load changes, it is basically manually adjusted manually.
  • Such a structure not only has a low load quality, but also limits its balance effect, and does not satisfactorily satisfy the gravity balance conditions at various angles, and the adjustment process is too cumbersome and reduces work efficiency.
  • the present invention solves the problem that the load quality of the existing exoskeleton robot is not high, and the gravity balance condition of each angle cannot be satisfactorily satisfied, and the adjustment process is too cumbersome and the work efficiency is lowered, and a load adaptive passive is proposed. Balance the upper extremity exoskeleton.
  • a load adaptive passive balance upper limb exoskeleton of the present invention the composition comprising a boom, an elbow joint, a small arm, a hand, a boom support rod and a small boom support rod;
  • the boom includes a boom upper rod, a boom lower rod, a shoulder joint and a boom driving mechanism
  • the boom driving mechanism includes a tail fixing member, a gas spring top plate, a gas spring, a gas spring sliding rail, a connecting plate, and two
  • the boom support rod slide rail, the two boom support rod sliders and the two gas spring sliders, the cylinder spring tail portion and the tail fixing member are fixed, the gas spring piston rod and the gas spring top plate are fixed, the connecting plate Fixed on the left side of the gas spring top plate, one gas spring block is fixedly connected with the connecting plate, and the two gas spring sliding blocks are all slidably connected with the gas spring sliding rail, and the gas spring sliding rail is fixed with the lower arm lowering rod, two
  • the boom support bar slide rails are arranged in parallel on the upper and lower sides and fixed on the right side of the gas spring top plate.
  • the two boom support rod sliders correspond to the two boom support rod slide rails, and the boom support rod slider and the boom
  • the support rod slide rail is slidably connected, and the upper arm upper rod and the lower arm lower rod have the same structure, the upper arm upper rod
  • the upper arm of the lower arm is symmetrically disposed at the upper and lower ends of the shoulder joint, and the shoulder joint is located at the left end of the upper arm of the upper arm and the lower arm of the lower arm, and the shoulder joint is respectively hinged with the upper arm of the upper arm and the lower arm of the upper arm, and the arm is driven.
  • the mechanism is disposed in the lower arm of the boom, and the tail fixing member in the boom driving mechanism and the two gas spring sliders in the boom driving mechanism are both fixed to the lower arm lowering rod;
  • the arm includes an upper arm upper arm, an upper arm lower arm, a wrist joint and an arm driving mechanism, and the arm driving mechanism has the same structure as the big arm driving mechanism, and the upper arm upper arm and the lower arm lower rod have the same structure.
  • the upper arm and the lower arm of the lower arm are symmetrically disposed at the upper and lower ends of the wrist joint, and the wrist joint is located at the right end of the upper arm and the lower arm of the lower arm, and the wrist joint is hinged to the upper arm and the lower arm of the lower arm respectively through the bearing
  • the arm driving mechanism is disposed in the upper arm of the arm, and the tail fixing member in the arm driving mechanism and the two gas spring sliding blocks in the arm driving mechanism are both fixed to the lower arm lowering rod;
  • Elbow joint includes a large elbow joint assembly, a small elbow joint assembly, an elbow joint drive mechanism, a boom transition gear, a boom transition gear shaft, a small arm transition gear, a small arm transition gear shaft, and two roller bearings
  • the elbow joint assembly includes a boom screw nut, a boom screw nut connector, a lower arm ball bearing, a boom elbow joint housing, a boom screw, a ball upper arm bearing, a boom gear and Two big-arm needle roller thrust bearings, the boom screw nut and the boom screw are screwed, and the upper end of the boom screw is provided with two big-arm needle roller thrust bearings and a large-arm upper ball bearing from the inside to the outside.
  • the lower end of the boom screw is provided with a large arm screw nut connecting piece and a lower arm lower ball bearing in order from the inside to the outside, the upper arm screw nut and the big arm screw nut connecting piece are fixed, the upper arm ball bearing, the large The underarm ball bearing and the two big arm needle roller thrust bearings are supported in the elbow joint housing, and the lower end of the boom screw is exposed outside the boom elbow joint housing and fixed to the boom gear;
  • the arm elbow Joint assembly including arm drive Gear, arm elbow joint housing, arm screw nut, arm screw nut connector, arm upper ball bearing, arm screw, two small arm needle thrust bearings, arm screw nut and small
  • the arm screw is screwed, the upper end of the arm screw is provided with a small arm screw nut connecting piece, and the lower end of the small arm screw is provided with two small arm needle thrust bearings, a small arm screw nut and a small arm screw nut
  • the connecting piece is fixed, the small arm screw nut connecting piece is set on the small arm screw, the upper arm upper ball bearing and
  • the arm, the elbow joint, the arm and the hand are arranged in order from left to right, and the upper arm and the lower arm are respectively hinged to the elbow joint housing through the bearing, and the upper arm and the lower arm are under the arm.
  • the rods are respectively hinged to the elbow joint housing through the bearing, the boom support rod is disposed between the boom drive mechanism and the boom joint assembly, and one end of the boom support rod and two booms in the boom drive mechanism
  • the support rod slider is fixed, and the other end of the boom support rod is hinged with the extension shaft on both sides of the boom screw nut connector, and the small arm support rod is disposed between the arm drive mechanism and the arm elbow joint assembly.
  • the present invention utilizes a method in which a gas spring outputs a constant force so that various angles during the rotation process can be perfectly balanced.
  • the gas spring is a passive energy storage device with high power density, compared with the spring structure, the load capacity and compactness of the device are greatly increased, and the single arm load capacity can reach 25 kg or more.
  • the introduction of the motor automatic adjustment feedback system enables the present invention to have a fast switching capability for carrying heavy object changes, which greatly improves the work efficiency and expands its application.
  • the structure of the invention can balance the gravity generated by the weight of the cargo and reduce the weight of the upper limb of the human body.
  • 1 is a perspective view of the overall structure of the present invention
  • 2 is a perspective view of the connection relationship between the boom A and the elbow joint B (the boom lower arm A2 is removed);
  • Figure 3 is a front cross-sectional view of the present invention.
  • FIG. 5 is a front cross-sectional view of the elbow joint B
  • FIG. 6 is a perspective view showing a connection relationship between the boom support lever E and the boom driving mechanism A4 and the boom elbow joint assembly B1;
  • FIG. 7 is a perspective view showing a connection relationship between the small boom support rod K and the arm driving mechanism C4 and the arm elbow joint assembly B2;
  • FIG. 9 is a view showing a state of use of the present invention.
  • FIG. 10 is a schematic diagram of the principle of the present invention.
  • This embodiment includes a boom A, an elbow joint B, an arm C, a hand D, a boom support rod E, and a small boom support rod. F;
  • the boom A includes a boom upper pole A1, a boom lower pole A2, a shoulder joint A3, and a boom driving mechanism A4.
  • the boom driving mechanism A4 includes a tail fixing member 3, a gas spring top plate 4, a gas spring 5, and a gas.
  • Spring slide rail 6, connecting plate 7, two boom support rod slide rails 8, two boom support rod sliders 9 and two gas spring sliders 10, cylinder tail and tail fixing member 3 of gas spring 5 The piston rod of the gas spring 5 is fixed to the gas spring top plate 4, the connecting plate 7 is fixed on the left side of the gas spring top plate 4, and one gas spring slider 10 is fixedly connected to the connecting plate 7, and the two gas spring sliders 10 are connected.
  • Both are slidably connected with the gas spring slide rail 6, the gas spring slide rail 6 is fixedly connected with the boom lower rod A2, and the two boom support rod slide rails 8 are arranged in parallel up and down and fixed on the right side of the gas spring top plate 4, two The boom support bar slider 9 is corresponding to the two boom support bar slides 8 , and the boom support bar slider 9 is slidably connected with the boom support bar slide rail 8 , the upper arm upper pole A1 and the upper boom lower pole A2
  • the upper arm A1 and the lower arm A2 are symmetrically arranged at the upper and lower ends of the shoulder joint A3, and the shoulder joint A3 is located at the upper arm A1 and the lower arm A2.
  • the left end, and the shoulder joint A3 are respectively hinged to the upper arm upper rod A1 and the lower arm lower rod A2 through the bearing, the boom driving mechanism A4 is disposed in the boom lower rod A2, and the tail fixing member 3 in the boom driving mechanism A4 and The two gas spring sliders 10 in the boom driving mechanism A4 are all fixed to the boom lower rod 2;
  • the arm C includes an upper arm CI, an arm lower rod C2, a wrist joint C3, and an arm driving mechanism C4.
  • the arm driving mechanism C4 has the same structure as the boom driving mechanism A4, and the upper arm C1 and the upper arm
  • the structure of the lower arm C2 is the same, the upper arm C1 and the lower arm C2 are symmetrically disposed at the upper and lower ends of the wrist C3, and the wrist C3 is located at the right end of the upper arm C1 and the lower arm C2, and the wrist
  • the joint C3 is respectively hinged to the upper arm C1 and the lower arm C2 via the bearing, the arm driving mechanism C4 is disposed in the upper arm C1, and the tail fixing member 3 and the arm driving mechanism in the arm driving mechanism C4 are respectively
  • the two gas spring sliders 10 in C4 are all fixed to the boom lower rod 2;
  • Elbow joint B includes a big elbow joint assembly B1, a small elbow joint assembly B2, an elbow joint drive mechanism B3, a boom transition gear B4, a boom transition gear shaft B5, a small arm transition gear B6, and an arm transition gear.
  • the shaft B7 and the two roller bearings B8, the boom elbow joint assembly B1 include a boom screw nut 18, a boom screw nut connector 19, a lower arm ball bearing 20, a boom elbow joint housing 22, and a large
  • the arm screw 23, the upper ball bearing 24, the boom transmission gear 21 and the two boom needle thrust bearings 17, the boom screw nut 18 is screwed to the boom screw 23, and the upper end of the boom screw 23 From the inside to the outside, there are two boom needle roller thrust bearings 17 and a boom upper ball bearing 24, and the lower end of the boom screw 23 is provided with a large arm screw nut connecting member 19 and a boom from the inside to the outside.
  • the lower ball bearing 20, the boom screw nut 18 and the boom screw nut connecting member 19 are fixed, and the upper arm ball bearing 24, the lower arm ball bearing 20 and the two big arm needle roller thrust bearings 17 are supported at a large size.
  • the elbow joint assembly (B2) includes a small arm transmission gear 38, a small arm joint housing 39, a small arm screw nut 40, a small arm screw nut connecting member 41, an upper arm upper ball bearing 42, and a small arm screw 43.
  • the arm screw nut 40 is screwed to the small arm screw 43, and the upper end of the small arm screw 43 is provided with a small arm screw nut connecting member 41, and the small arm screw 43
  • the lower end sleeve has two small arm needle roller thrust bearings 44, the arm screw nut 40 is fixed to the small arm screw nut connecting member 41, and the small arm screw nut connecting member 41 is set on the small arm screw 43, the arm
  • the upper ball bearing 42 and the two small arm needle thrust bearings 44 are both supported in the arm elbow joint housing 39, the lower end of the arm screw 43 being exposed outside the arm elbow joint housing 39 and with the arm drive gear 38 Fixed; in this way, the arm transmission screw 38 can transmit the rotation to the arm screw 4 3, the arm screw nut 40 drives the arm screw nut connecting member 41 to move up and down;
  • the elbow joint driving mechanism B3 includes a reducer output gear 25, a reducer housing 26, a main shaft 27, a motor 28 and a speed reducer 29, The speed reducer 29 is disposed in the
  • the boom A, the elbow joint B, the arm C and the hand D are arranged in order from left to right, and the upper arm A1 and the lower arm A2 are hinged to the elbow joint housing 22 through bearings, respectively.
  • the upper arm C1 and the lower arm C2 are respectively hinged to the elbow joint housing 39 through a bearing
  • the arm support rod E is disposed between the boom driving mechanism A4 and the boom elbow joint assembly B1, and the boom support rod
  • One end of the E is fixed to the two large arm support rod sliders 9 in the boom driving mechanism A4, and the other end of the boom support rod E is hinged to the both sides of the boom screw nut connecting member 19 through the bearing
  • small The boom support rod F is disposed between the arm drive mechanism C4 and the arm elbow joint assembly B2, and one end of the small boom support rod F is fixed to the two boom support rod sliders 9 of the arm drive mechanism C4.
  • the other end of the small boom support rod F and the extension shaft on both sides of the arm screw nut connecting member 41 are hinged by a bearing
  • Embodiment 2 The present embodiment is described with reference to FIG. 3 and FIG. 8.
  • the hand D of the present embodiment includes a wrist connecting frame 11, a load hook 12, a first pin shaft 13, a force sensor 14, and a lifting lug 15, a second pin 16, a handshake 30 and a third pin 31,
  • the load hook 12 is disposed under the wrist connector 11, and the load hook 12 and the wrist connector 11 are hinged by the first pin 13, and the force sensor 14 is disposed on the load
  • the hook 12 is connected to the wrist connecting frame 11, and the upper end of the force sensor 14 is inserted into the wrist connecting frame 11, the lower end of the force sensor 14 is screwed with the lifting lug 15, and the lifting lug 15 and the load hook 12 are hinged by the second pin 16 , with the wrist connector 11 through the third pin
  • the shaft 31 is hinged.
  • the handshake 30 has a degree of freedom of flipping. Other compositions and connection relationships are the same as in the first embodiment.
  • the motor 28 rotates, and the movement is transmitted to the boom transmission gear 21 and the arm transmission gear 38 via the boom transition gear B4 and the arm transition gear B6 through the reducer output gear 25, and the boom transmission gear 21 can transmit the rotation.
  • the boom screw nut 18 causes the boom screw nut connector 19 to move up and down. In this way, the adjustment of H is realized.
  • the H can be adjusted according to the data collected by the end force sensor 14 to satisfy the balance effect, and the condition of passively balancing gravity has been reached.

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  • Engineering & Computer Science (AREA)
  • Robotics (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Manipulator (AREA)

Abstract

一种负载自适应被动平衡上肢外骨骼,大臂(A)、肘关节(B)、小臂(C)和手部(D)由左至右依次布置,大臂上杆(A1)和大臂下杆(A2)分别通过轴承与大臂肘关节壳体铰接,小臂上杆(C1)和小臂下杆(C2)分别通过轴承与小臂肘关节壳体铰接,大臂支撑杆(E)设置在大臂驱动机构(A4)与大臂肘关节组件(B1)之间,且大臂支撑杆的一端与大臂驱动机构中的两个大臂支撑杆滑块(9)固接,大臂支撑杆的另一端与大臂丝杠螺母连接件两侧伸出轴通过轴承铰接,小大臂支撑杆设置在小臂驱动机构(C4)与小臂肘关节组件(B2)之间,且小大臂支撑杆(K)的一端与小臂驱动机构中的两个大臂支撑杆滑块固接,小大臂支撑杆的另一端与小臂丝杠螺母连接件两侧伸出轴通过轴承铰接,手部与腕关节铰接。用于助力搬运较重的货物或帮助随身携带某些物品。

Description

发明名称:一种负载自适应被动平衡上肢外骨骼 技术领域
[0001] 本发明涉及一种外骨骼机器人, 具体涉及一种负载自适应被动平衡上肢外骨骼 背景技术
[0002] 目前, 上肢被动外骨骼机器人以其独有的人机结合方式受到了广大的研究者的 青睐, 现有的上肢被动外骨骼多以弹簧为主动力来实现平衡, 而当工况中载荷 发生变化吋, 基本依靠人工进行手动调整。 这样的结构不但负载质量不高, 而 且使其平衡效果受到了很大的限制, 不能很好的满足各个角度的重力平衡条件 , 而且调整过程过于繁琐, 降低了工作效率。
技术问题
[0003] 本发明为解决现有外骨骼机器人负载质量不高, 不能很好的满足各个角度的重 力平衡条件, 而且调整过程过于繁琐, 降低了工作效率的问题, 而提出一种负 载自适应被动平衡上肢外骨骼。
问题的解决方案
技术解决方案
[0004] 本发明的一种负载自适应被动平衡上肢外骨骼, 其组成包括大臂、 肘关节、 小 臂、 手部、 大臂支撑杆和小大臂支撑杆;
[0005] 大臂包括大臂上杆、 大臂下杆、 肩关节和大臂驱动机构, 大臂驱动机构包括尾 部固定件、 气弹簧顶板、 气弹簧、 气弹簧滑轨、 连接板、 两个大臂支撑杆滑轨 、 两个大臂支撑杆滑块和两个气弹簧滑块, 气弹簧的缸体尾部与尾部固定件固 接, 气弹簧的活塞杆与气弹簧顶板固接, 连接板固装在气弹簧顶板的左侧, 一 个气弹簧滑块与连接板固接, 两个气弹簧滑块均与气弹簧滑轨滑动连接, 气弹 簧滑轨与大臂下杆固接, 两个大臂支撑杆滑轨上下平行设置且固装在气弹簧顶 板的右侧, 两个大臂支撑杆滑块与两个大臂支撑杆滑轨一一对应, 大臂支撑杆 滑块与大臂支撑杆滑轨滑动连接, 大臂上杆与大臂下杆的结构相同, 大臂上杆 和大臂下杆对称设置在肩关节的上下端, 肩关节位于大臂上杆和大臂下杆的左 端, 且肩关节分别通过轴承与大臂上杆和大臂下杆铰接, 大臂驱动机构设置在 大臂下杆中, 且大臂驱动机构中的尾部固定件和大臂驱动机构中的两个气弹簧 滑块均与大臂下杆固接;
[0006] 小臂包括小臂上杆、 小臂下杆、 腕关节和小臂驱动机构, 小臂驱动机构与大臂 驱动机构的结构相同, 小臂上杆与小臂下杆的结构相同, 小臂上杆和小臂下杆 对称设置在腕关节的上下端, 腕关节位于小臂上杆和小臂下杆的右端, 且腕关 节分别通过轴承与小臂上杆和小臂下杆铰接, 小臂驱动机构设置在小臂上杆中 , 且小臂驱动机构中的尾部固定件和小臂驱动机构中的两个气弹簧滑块均与大 臂下杆固接;
[0007] 肘关节包括大臂肘关节组件、 小臂肘关节组件、 肘关节驱动机构、 大臂过渡齿 轮、 大臂过渡齿轮轴、 小臂过渡齿轮、 小臂过渡齿轮轴和两个滚子轴承, 大臂 肘关节组件包括大臂丝杠螺母、 大臂丝杠螺母连接件、 大臂下滚珠轴承、 大臂 肘关节壳体、 大臂丝杠、 大臂上滚珠轴承、 大臂传动齿轮和两个大臂滚针推力 轴承, 大臂丝杠螺母与大臂丝杠螺纹连接, 大臂丝杠的上端由内至外依次套装 有两个大臂滚针推力轴承和大臂上滚珠轴承, 大臂丝杠的下端由内至外依次套 装有大臂丝杠螺母连接件和大臂下滚珠轴承, 大臂丝杠螺母与大臂丝杠螺母连 接件固接, 大臂上滚珠轴承、 大臂下滚珠轴承和两个大臂滚针推力轴承均支撑 在大臂肘关节壳体中, 大臂丝杠的下端外露在大臂肘关节壳体外且与大臂传动 齿轮固接; 小臂肘关节组件包括小臂传动齿轮、 小臂肘关节壳体、 小臂丝杠螺 母、 小臂丝杠螺母连接件、 小臂上滚珠轴承、 小臂丝杠、 两个小臂滚针推力轴 承, 小臂丝杠螺母与小臂丝杠螺纹连接, 小臂丝杠的上端套装有小臂丝杠螺母 连接件, 小臂丝杠的下端套装有两个小臂滚针推力轴承, 小臂丝杠螺母与小臂 丝杠螺母连接件固接, 小臂丝杠螺母连接件套装在小臂丝杠上, 小臂上滚珠轴 承和两个小臂滚针推力轴承均支撑在小臂肘关节壳体中, 小臂丝杠的下端外露 在小臂肘关节壳体外且与小臂传动齿轮固接; 肘关节驱动机构包括减速器输出 齿轮、 减速器外壳、 主轴、 电机和减速器, 减速器设置在减速器外壳中, 减速 器的输入端与电机连接, 减速器的输出端与主轴连接, 减速器输出齿轮固装在 主轴上; 大臂肘关节组件和小臂肘关节组件设置在肘关节驱动机构的左右侧, 减速器外壳与大臂肘关节壳体和小臂肘关节壳体固接, 大臂过渡齿轮设置在减 速器输出齿轮与大臂传动齿轮之间, 且大臂过渡齿轮同吋与减速器输出齿轮和 大臂传动齿轮啮合, 大臂过渡齿轮通过一个滚子轴承与大臂过渡齿轮轴连接, 大臂过渡齿轮轴与大臂肘关节壳体固接, 小臂过渡齿轮设置在减速器输出齿轮 与小臂传动齿轮之间, 且小臂过渡齿轮同吋与减速器输出齿轮和小臂传动齿轮 啮合, 小臂过渡齿轮通过另一个滚子轴承与小臂过渡齿轮轴连接, 小臂过渡齿 轮轴与小臂肘关节壳体固接;
[0008] 大臂、 肘关节、 小臂和手部由左至右依次布置, 大臂上杆和大臂下杆分别通过 轴承与大臂肘关节壳体铰接, 小臂上杆和小臂下杆分别通过轴承与小臂肘关节 壳体铰接, 大臂支撑杆设置在大臂驱动机构与大臂肘关节组件之间, 且大臂支 撑杆的一端与大臂驱动机构中的两个大臂支撑杆滑块固接, 大臂支撑杆的另一 端与大臂丝杠螺母连接件两侧伸出轴通过轴承铰接, 小大臂支撑杆设置在小臂 驱动机构与小臂肘关节组件之间, 且小大臂支撑杆的一端与小臂驱动机构中的 两个大臂支撑杆滑块固接, 小大臂支撑杆的另一端与小臂丝杠螺母连接件 41两 侧伸出轴通过轴承铰接, 手部与腕关节铰接。
发明的有益效果
有益效果
[0009] 一、 本发明利用气弹簧输出恒力的方式使得在转动过程中的各个角度都能够完 美达到平衡效果。
[0010] 二、 由于气弹簧是功率密度较高的被动储能装置, 相比弹簧结构来说, 极大程 度提高了设备的负载能力和紧凑型, 单臂负载能力可达 25kg以上。
[0011] 三、 电机自动调整反馈系统的引入使得本发明可以具备在承载重物变化吋的快 速切换能力, 使得工作效率大大提升, 并且扩大了其应用场合。
[0012] 四、 本发明结构可以平衡掉由于货物重量产生的重力, 减轻人体上肢的负重。
对附图的简要说明
附图说明
[0013] 图 1是本发明的整体结构立体图; [0014] 图 2是大臂 A与肘关节 B的连接关系立体图 (去掉大臂下杆 A2) ;
[0015] 图 3是本发明的主剖视图;
[0016] 图 4是肘关节驱动机构 B3的主剖视图;
[0017] 图 5是肘关节 B的主剖视图;
[0018] 图 6是大臂支撑杆 E与大臂驱动机构 A4和大臂肘关节组件 B1之间的连接关系立 体图;
[0019] 图 7是小大臂支撑杆 K与小臂驱动机构 C4和小臂肘关节组件 B2之间的连接关系 立体图;
[0020] 图 8是手部 D的结构立体图;
[0021] 图 9是本发明的使用状态图;
[0022] 图 10是本发明的原理简图。
本发明的实施方式
[0023] 具体实施方式一: 结合图 1〜图 8说明本实施方式, 本实施方式包括大臂 A、 肘 关节 B、 小臂 C、 手部 D、 大臂支撑杆 E和小大臂支撑杆 F;
[0024] 大臂 A包括大臂上杆 Al、 大臂下杆 A2、 肩关节 A3和大臂驱动机构 A4, 大臂驱 动机构 A4包括尾部固定件 3、 气弹簧顶板 4、 气弹簧 5、 气弹簧滑轨 6、 连接板 7、 两个大臂支撑杆滑轨 8、 两个大臂支撑杆滑块 9和两个气弹簧滑块 10, 气弹簧 5的 缸体尾部与尾部固定件 3固接, 气弹簧 5的活塞杆与气弹簧顶板 4固接, 连接板 7 固装在气弹簧顶板 4的左侧, 一个气弹簧滑块 10与连接板 7固接, 两个气弹簧滑 块 10均与气弹簧滑轨 6滑动连接, 气弹簧滑轨 6与大臂下杆 A2固接, 两个大臂支 撑杆滑轨 8上下平行设置且固装在气弹簧顶板 4的右侧, 两个大臂支撑杆滑块 9与 两个大臂支撑杆滑轨 8—一对应, 大臂支撑杆滑块 9与大臂支撑杆滑轨 8滑动连接 , 大臂上杆 A1与大臂下杆 A2的结构相同, 大臂上杆 A1和大臂下杆 A2对称设置在 肩关节 A3的上下端, 肩关节 A3位于大臂上杆 A1和大臂下杆 A2的左端, 且肩关节 A3分别通过轴承与大臂上杆 A1和大臂下杆 A2铰接, 大臂驱动机构 A4设置在大臂 下杆 A2中, 且大臂驱动机构 A4中的尾部固定件 3和大臂驱动机构 A4中的两个气 弹簧滑块 10均与大臂下杆 2固接; [0025] 小臂 C包括小臂上杆 CI、 小臂下杆 C2、 腕关节 C3和小臂驱动机构 C4, 小臂驱 动机构 C4与大臂驱动机构 A4的结构相同, 小臂上杆 C1与小臂下杆 C2的结构相同 , 小臂上杆 C1和小臂下杆 C2对称设置在腕关节 C3的上下端, 腕关节 C3位于小臂 上杆 C1和小臂下杆 C2的右端, 且腕关节 C3分别通过轴承与小臂上杆 C1和小臂下 杆 C2铰接, 小臂驱动机构 C4设置在小臂上杆 C1中, 且小臂驱动机构 C4中的尾部 固定件 3和小臂驱动机构 C4中的两个气弹簧滑块 10均与大臂下杆 2固接;
[0026] 肘关节 B包括大臂肘关节组件 Bl、 小臂肘关节组件 B2、 肘关节驱动机构 B3、 大 臂过渡齿轮 B4、 大臂过渡齿轮轴 B5、 小臂过渡齿轮 B6、 小臂过渡齿轮轴 B7和两 个滚子轴承 B8, 大臂肘关节组件 Bl包括大臂丝杠螺母 18、 大臂丝杠螺母连接件 1 9、 大臂下滚珠轴承 20、 大臂肘关节壳体 22、 大臂丝杠 23、 大臂上滚珠轴承 24、 大臂传动齿轮 21和两个大臂滚针推力轴承 17, 大臂丝杠螺母 18与大臂丝杠 23螺 纹连接, 大臂丝杠 23的上端由内至外依次套装有两个大臂滚针推力轴承 17和大 臂上滚珠轴承 24, 大臂丝杠 23的下端由内至外依次套装有大臂丝杠螺母连接件 1 9和大臂下滚珠轴承 20, 大臂丝杠螺母 18与大臂丝杠螺母连接件 19固接, 大臂上 滚珠轴承 24、 大臂下滚珠轴承 20和两个大臂滚针推力轴承 17均支撑在大臂肘关 节壳体 22中, 大臂丝杠 23的下端外露在大臂肘关节壳体 22外且与大臂传动齿轮 2 1固接, 这样设置, 通过大臂传动齿轮 21可以将转动传递到大臂丝杠 23上, 使得 大臂丝杠螺母 18带动大臂丝杠螺母连接件 19上下移动; 小臂肘关节组件 (B2) 包括小臂传动齿轮 38、 小臂肘关节壳体 39、 小臂丝杠螺母 40、 小臂丝杠螺母连 接件 41、 小臂上滚珠轴承 42、 小臂丝杠 43、 两个小臂滚针推力轴承 44, 小臂丝 杠螺母 40与小臂丝杠 43螺纹连接, 小臂丝杠 43的上端套装有小臂丝杠螺母连接 件 41, 小臂丝杠 43的下端套装有两个小臂滚针推力轴承 44, 小臂丝杠螺母 40与 小臂丝杠螺母连接件 41固接, 小臂丝杠螺母连接件 41套装在小臂丝杠 43上, 小 臂上滚珠轴承 42和两个小臂滚针推力轴承 44均支撑在小臂肘关节壳体 39中, 小 臂丝杠 43的下端外露在小臂肘关节壳体 39外且与小臂传动齿轮 38固接; 这样设 置, 通过小臂传动齿轮 38可以将转动传递到小臂丝杠 43上, 使得小臂丝杠螺母 4 0带动小臂丝杠螺母连接件 41上下移动; 肘关节驱动机构 B3包括减速器输出齿轮 25、 减速器外壳 26、 主轴 27、 电机 28和减速器 29, 减速器 29设置在减速器外壳 2 6中, 减速器 29的输入端与电机 28连接, 减速器 29的输出端与主轴 27连接, 减速 器输出齿轮 25固装在主轴 27上; 大臂肘关节组件 B 1和小臂肘关节组件 B2设置在 肘关节驱动机构 B3的左右侧, 减速器外壳 26与大臂肘关节壳体 22和小臂肘关节 壳体 39固接, 大臂过渡齿轮 B4设置在减速器输出齿轮 25与大臂传动齿轮 21之间 , 且大臂过渡齿轮 B4同吋与减速器输出齿轮 25和大臂传动齿轮 21啮合, 大臂过 渡齿轮 B4通过一个滚子轴承 B8与大臂过渡齿轮轴 B5连接, 大臂过渡齿轮轴 B5与 大臂肘关节壳体 22固接, 小臂过渡齿轮 B6设置在减速器输出齿轮 25与小臂传动 齿轮 38之间, 且小臂过渡齿轮 B6同吋与减速器输出齿轮 25和小臂传动齿轮 38啮 合, 小臂过渡齿轮 B6通过另一个滚子轴承 B8与小臂过渡齿轮轴 B7连接, 小臂过 渡齿轮轴 B7与小臂肘关节壳体 39固接;
[0027] 大臂 A、 肘关节 B、 小臂 C和手部 D由左至右依次布置, 大臂上杆 A1和大臂下杆 A2分别通过轴承与大臂肘关节壳体 22铰接, 小臂上杆 C1和小臂下杆 C2分别通过 轴承与小臂肘关节壳体 39铰接, 大臂支撑杆 E设置在大臂驱动机构 A4与大臂肘关 节组件 B1之间, 且大臂支撑杆 E的一端与大臂驱动机构 A4中的两个大臂支撑杆 滑块 9固接, 大臂支撑杆 E的另一端与大臂丝杠螺母连接件 19两侧伸出轴通过轴 承铰接, 小大臂支撑杆 F设置在小臂驱动机构 C4与小臂肘关节组件 B2之间, 且小 大臂支撑杆 F的一端与小臂驱动机构 C4中的两个大臂支撑杆滑块 9固接, 小大臂 支撑杆 F的另一端与小臂丝杠螺母连接件 41两侧伸出轴通过轴承铰接, 手部 D与 腕关节 C3铰接。
[0028] 当大臂支撑杆 E在人的牵引作用下转动吋, 会带动大臂支撑杆滑块 9与大臂支撑 杆滑轨 8相对滑动的同吋带动气弹簧顶板 4沿着气弹簧 5的活塞杆伸缩方向移动, 气弹簧 5的活塞杆随之产生伸缩运动。
[0029] 具体实施方式二: 结合图 3和图 8说明本实施方式, 本实施方式的手部 D包括手 腕连接架 11、 载重钩 12、 第一销轴 13、 力传感器 14、 吊耳 15、 第二销轴 16、 握 手 30和第三销轴 31, 载重钩 12设置在手腕连接架 11的下面, 且载重钩 12与手腕 连接架 11通过第一销轴 13铰接, 力传感器 14设置在载重钩 12与手腕连接架 11之 间, 且力传感器 14的上端与手腕连接架 11插接, 力传感器 14的下端与吊耳 15螺 纹连接, 吊耳 15与载重钩 12通过第二销轴 16铰接, 与手腕连接架 11通过第三销 轴 31铰接。 这样设置, 当载重钩 12放上重物吋, 通过杠杆的作用, 力传感器 14 就会被拉伸达到测量质量的作用。 握手 30具有翻转的自由度。 其它组成及连接 关系与具体实施方式一相同。
[0030] 具体实施方式三: 结合图 3说明本实施方式, 本实施方式的大臂丝杠 23与小臂 丝杠 43的直径、 螺距均相同。 这样设置可以保证大臂 A和小臂 C同步转动。 其它 组成及连接关系与具体实施方式一或二相同。
[0031] 本发明的工作原理:
[0032] 在大臂 A上, 通过大臂上杆 Al、 肩关节 A3、 大臂下杆 A2、 大臂肘关节壳体 22 四个部件的铰链连接构成一个平行四边形, 利用图 10所示的原理, 将气弹簧 5伸 缩运动, 改变为手部 D的旋转运动, 并且可以计算得出其与重力之间的关系式 F* H=G*L, 其中, F—气弹簧活塞推力值、 H—丝杠螺母 18距离手臂连杆转轴 距离、 G _重物的重力、 L—大臂上杆 A1与肩关节 A3的铰接中心至大臂上杆 A1与大臂肘关节壳体 22铰接中心 (或者大臂下杆 A2与肩关节 A3的铰接中心至大 臂下杆 A2与大臂肘关节壳体 22铰接中心) 之间的距离。 通过 F*H=G*L就可以实 现针对不同重力的平衡效果。 电机 28转动, 通过减速器输出齿轮 25将运动分别 经由大臂过渡齿轮 B4和小臂过渡齿轮 B6传递到大臂传动齿轮 21和小臂传动齿轮 3 8上, 大臂传动齿轮 21可以将转动传递到大臂丝杠 23上, 使得大臂丝杠螺母 18带 动大臂丝杠螺母连接件 19上下移动。 这样就实现了 H的调整, 在实际工况中, 可 以根据末端力传感器 14采集的数据实吋的对 H进行调整, 使其满足平衡效果, 已 达到被动平衡重力的条件。
[0033] 小臂 C的原理大臂 A相同。

Claims

权利要求书
[权利要求 1] 一种负载自适应被动平衡上肢外骨骼, 其特征在于: 所述上肢外骨骼 包括大臂 (A) 、 肘关节 (B) 、 小臂 (C) 、 手部 (D) 、 大臂支撑 杆 (E) 和小大臂支撑杆 (K) ;
大臂 (A) 包括大臂上杆 (A1) 、 大臂下杆 (A2) 、 肩关节 (A3) 和大臂驱动机构 (A4) , 大臂驱动机构 (A4) 包括尾部固定件 (3) 、 气弹簧顶板 (4) 、 气弹簧 (5) 、 气弹簧滑轨 (6) 、 连接板 (7) 、 两个大臂支撑杆滑轨 (8) 、 两个大臂支撑杆滑块 (9) 和两个气弹 簧滑块 (10) , 气弹簧 (5) 的缸体尾部与尾部固定件 (3) 固接, 气 弹簧 (5) 的活塞杆与气弹簧顶板 (4) 固接, 连接板 (7) 固装在气 弹簧顶板 (4) 的左侧, 一个气弹簧滑块 (10) 与连接板 (7) 固接, 两个气弹簧滑块 (10) 均与气弹簧滑轨 (6) 滑动连接, 气弹簧滑轨
(6) 与大臂下杆 (A2) 固接, 两个大臂支撑杆滑轨 (8) 上下平行 设置且固装在气弹簧顶板 (4) 的右侧, 两个大臂支撑杆滑块 (9) 与 两个大臂支撑杆滑轨 (8) —一对应, 大臂支撑杆滑块 (9) 与大臂支 撑杆滑轨 (8) 滑动连接, 大臂上杆 (A1) 与大臂下杆 (A2) 的结构 相同, 大臂上杆 (A1) 和大臂下杆 (A2) 对称设置在肩关节 (A3) 的上下端, 肩关节 (A3) 位于大臂上杆 (A1) 和大臂下杆 (A2) 的 左端, 且肩关节 (A3) 分别通过轴承与大臂上杆 (A1) 和大臂下杆
(A2) 铰接, 大臂驱动机构 (A4) 设置在大臂下杆 (A2) 中, 且大 臂驱动机构 (A4) 中的尾部固定件 (3) 和大臂驱动机构 (A4) 中的 两个气弹簧滑块 (10) 均与大臂下杆 (2) 固接; 小臂 (C) 包括小臂上杆 (C1) 、 小臂下杆 (C2) 、 腕关节 (C3) 和小臂驱动机构 (C4) , 小臂驱动机构 (C4) 与大臂驱动机构 (A4 ) 的结构相同, 小臂上杆 (C1) 与小臂下杆 (C2) 的结构相同, 小 臂上杆 (C1) 和小臂下杆 (C2) 对称设置在腕关节 (C3) 的上下端 , 腕关节 (C3) 位于小臂上杆 (C1) 和小臂下杆 (C2) 的右端, 且 腕关节 (C3) 分别通过轴承与小臂上杆 (C1) 和小臂下杆 (C2) 铰 接, 小臂驱动机构 (C4) 设置在小臂上杆 (C1) 中, 且小臂驱动机 构 (C4) 中的尾部固定件 (3) 和小臂驱动机构 (C4) 中的两个气弹 簧滑块 (10) 均与大臂下杆 (2) 固接;
肘关节 (B) 包括大臂肘关节组件 (B1) 、 小臂肘关节组件 (B2) 、 肘关节驱动机构 (B3) 、 大臂过渡齿轮 (B4) 、 大臂过渡齿轮轴 (B 5) 、 小臂过渡齿轮 (B6) 、 小臂过渡齿轮轴 (B7) 和两个滚子轴承
(B8) , 大臂肘关节组件 (B1) 包括大臂丝杠螺母 18、 大臂丝杠螺 母连接件 (19) 、 大臂下滚珠轴承 (20) 、 大臂肘关节壳体 (22) 、 大臂丝杠 (23) 、 大臂上滚珠轴承 (24) 、 大臂传动齿轮 (21) 和两 个大臂滚针推力轴承 (17) , 大臂丝杠螺母 (18) 与大臂丝杠 (23) 螺纹连接, 大臂丝杠 (23) 的上端由内至外依次套装有两个大臂滚针 推力轴承 (17) 和大臂上滚珠轴承 (24) , 大臂丝杠 (23) 的下端由 内至外依次套装有大臂丝杠螺母连接件 (19) 和大臂下滚珠轴承 (20 ) , 大臂丝杠螺母 (18) 与大臂丝杠螺母连接件 (19) 固接, 大臂上 滚珠轴承 (24) 、 大臂下滚珠轴承 (20) 和两个大臂滚针推力轴承 ( 17) 均支撑在大臂肘关节壳体 (22) 中, 大臂丝杠 (23) 的下端外露 在大臂肘关节壳体 (22) 外且与大臂传动齿轮 (21) 固接; 小臂肘关 节组件 (B2) 包括小臂传动齿轮 (38) 、 小臂肘关节壳体 (39) 、 小臂丝杠螺母 (40) 、 小臂丝杠螺母连接件 (41) 、 小臂上滚珠轴承
(42) 、 小臂丝杠 (43) 、 两个小臂滚针推力轴承 (44) , 小臂丝杠 螺母 (40) 与小臂丝杠 (43) 螺纹连接, 小臂丝杠 (43) 的上端套装 有小臂丝杠螺母连接件 (41) , 小臂丝杠 (43) 的下端套装有两个小 臂滚针推力轴承 (44) , 小臂丝杠螺母 (40) 与小臂丝杠螺母连接件
(41) 固接, 小臂丝杠螺母连接件 (41) 套装在小臂丝杠 (43) 上, 小臂上滚珠轴承 (42) 和两个小臂滚针推力轴承 (44) 均支撑在小臂 肘关节壳体 (39) 中, 小臂丝杠 (43) 的下端外露在小臂肘关节壳体
(39) 外且与小臂传动齿轮 (38) 固接; 肘关节驱动机构 (B3) 包 括减速器输出齿轮 (25) 、 减速器外壳 (26) 、 主轴 (27) 、 电机 ( 28) 和减速器 (29) , 减速器 (29) 设置在减速器外壳 (26) 中, 减 速器 (29) 的输入端与电机 (28) 连接, 减速器 (29) 的输出端与主 轴 (27) 连接, 减速器输出齿轮 (25) 固装在主轴 (27) 上; 大臂肘 关节组件 (B1) 和小臂肘关节组件 (B2) 设置在肘关节驱动机构 (B 3) 的左右侧, 减速器外壳 (26) 与大臂肘关节壳体 (22) 和小臂肘 关节壳体 (39) 固接, 大臂过渡齿轮 (B4) 设置在减速器输出齿轮 (25) 与大臂传动齿轮 (21) 之间, 且大臂过渡齿轮 (B4) 同吋与 减速器输出齿轮 (25) 和大臂传动齿轮 (21) 啮合, 大臂过渡齿轮 ( B4) 通过一个滚子轴承 (B8) 与大臂过渡齿轮轴 (B5) 连接, 大臂 过渡齿轮轴 (B5) 与大臂肘关节壳体 (22) 固接, 小臂过渡齿轮 (B 6) 设置在减速器输出齿轮 (25) 与小臂传动齿轮 (38) 之间, 且小 臂过渡齿轮 (B6) 同吋与减速器输出齿轮 (25) 和小臂传动齿轮 (3
8) 啮合, 小臂过渡齿轮 (B6) 通过另一个滚子轴承 (B8) 与小臂过 渡齿轮轴 (B7) 连接, 小臂过渡齿轮轴 (B7) 与小臂肘关节壳体 (3
9) 固接;
大臂 (A) 、 肘关节 (B) 、 小臂 (C) 和手部 (D) 由左至右依次布 置, 大臂上杆 (A1) 和大臂下杆 (A2) 分别通过轴承与大臂肘关节 壳体 (22) 铰接, 小臂上杆 (C1) 和小臂下杆 (C2) 分别通过轴承 与小臂肘关节壳体 (39) 铰接, 大臂支撑杆 (E) 设置在大臂驱动机 构 (A4) 与大臂肘关节组件 (B1) 之间, 且大臂支撑杆 (E) 的一端 与大臂驱动机构 (A4) 中的两个大臂支撑杆滑块 (9) 固接, 大臂支 撑杆 (E) 的另一端与大臂丝杠螺母连接件 (19) 两侧伸出轴通过轴 承铰接, 小大臂支撑杆 (K) 设置在小臂驱动机构 (C4) 与小臂肘关 节组件 (B2) 之间, 且小大臂支撑杆 (K) 的一端与小臂驱动机构 ( C4) 中的两个大臂支撑杆滑块 (9) 固接, 小大臂支撑杆 (K) 的另 一端与小臂丝杠螺母连接件 (41) 两侧伸出轴通过轴承铰接, 手部 ( D) 与腕关节 (C3) 铰接。
[权利要求 2] 根据权利要求 1所述的一种负载自适应被动平衡上肢外骨骼, 其特征 在于: 所述手部 (D) 包括手腕连接架 (11) 、 载重钩 (12) 、 第一 销轴 (13) 、 力传感器 (14) 、 吊耳 (15) 、 第二销轴 (16) 、 握手 (30) 和第三销轴 (31) , 载重钩 (12) 设置在手腕连接架 (11) 的 下面, 且载重钩 (12) 与手腕连接架 (11) 通过第一销轴 (13) 铰接 , 力传感器 (14) 设置在载重钩 (12) 与手腕连接架 (11) 之间, 且 力传感器 (14) 的上端与手腕连接架 (11) 插接, 力传感器 (14) 的 下端与吊耳 (15) 螺纹连接, 吊耳 (15) 与载重钩 (12) 通过第二销 轴 (16) 铰接, 与手腕连接架 (11) 通过第三销轴 (31) 铰接。
[权利要求 3] 根据权利要求 1或 2所述的一种负载自适应被动平衡上肢外骨骼, 其特 征在于: 所述大臂丝杠 (23) 与小臂丝杠 (43) 的直径、 螺距均相同
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CN113975093A (zh) * 2021-11-02 2022-01-28 洛阳轴承研究所有限公司 一种手腕转动康复器及上肢康复型外骨骼

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