WO2021238293A1 - 可穿戴式绳驱动机械臂系统 - Google Patents
可穿戴式绳驱动机械臂系统 Download PDFInfo
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- WO2021238293A1 WO2021238293A1 PCT/CN2021/074171 CN2021074171W WO2021238293A1 WO 2021238293 A1 WO2021238293 A1 WO 2021238293A1 CN 2021074171 W CN2021074171 W CN 2021074171W WO 2021238293 A1 WO2021238293 A1 WO 2021238293A1
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- Prior art keywords
- joint
- rope
- waist
- driven
- winch
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Program-controlled manipulators
- B25J9/0006—Exoskeletons, i.e. resembling a human figure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J18/00—Arms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J13/00—Controls for manipulators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J13/00—Controls for manipulators
- B25J13/08—Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J17/00—Joints
- B25J17/02—Wrist joints
- B25J17/0258—Two-dimensional joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J18/00—Arms
- B25J18/02—Arms extensible
- B25J18/04—Arms extensible rotatable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Program-controlled manipulators
- B25J9/0084—Program-controlled manipulators comprising a plurality of manipulators
- B25J9/0087—Dual arms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Program-controlled manipulators
- B25J9/10—Program-controlled manipulators characterised by positioning means for manipulator elements
- B25J9/104—Program-controlled manipulators characterised by positioning means for manipulator elements with cables, chains or ribbons
- B25J9/1045—Program-controlled manipulators characterised by positioning means for manipulator elements with cables, chains or ribbons comprising tensioning means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Program-controlled manipulators
- B25J9/10—Program-controlled manipulators characterised by positioning means for manipulator elements
- B25J9/108—Bearings specially adapted therefor
Definitions
- the invention relates to the field of mechanical assistance, in particular to a wearable rope-driven mechanical arm system.
- wearable collaborative machines can greatly supplement or expand human working capabilities by fixing mechanical arms or manipulators on the human torso or limbs, such as assisting the human body to carry heavy objects, complete precise or tedious assembly work, Instead of working in high-risk environments with human hands, work efficiency and safety are improved.
- the current wearable robotic arm has the following problems: 1) The traditional wearable robotic arm has a heavy structure and high energy consumption. The heavy drive unit is directly installed at the manipulator joint, increasing the inertia and volume of the arm body, resulting in a significant increase in energy consumption and dynamic coupling between the human body and the wearable manipulator, and it is difficult to ensure satisfactory operation accuracy and endurance. ability. 2) The overall equipment includes a mechanical arm structure, several drive motors and batteries. The mass is too large and the wearer is prone to discomfort.
- the Chinese Patent Publication No. CN 104825258 A discloses a shoulder wearable functional auxiliary mechanical arm. This technology is designed with a seven-degree-of-freedom rope-driven dual arm, which overcomes the load weight of the traditional joint motor-driven mechanical arm to a certain extent. The problem of low ratio, but a large number of heavy objects such as motors and batteries are all carried on the wearer's shoulders, the body load is heavy for long-term wear, and the wearing comfort is also greatly reduced.
- the present invention provides a wearable rope-driven mechanical arm system, which uses a lightweight drive device to drive the mechanical arm and moves the active part of the drive device to the load-bearing trolley to solve the problem of heavy wearing load.
- a wearable rope-driven mechanical arm system includes a wearable mechanism, two mechanical arms located on both sides of the wearable mechanism, a rope driving device, a load-bearing trolley, and a motor controller.
- the two mechanical arms are respectively fixed on both sides of the wearable mechanism ;
- the rope driving device includes a driving part and a driven part.
- the driving part is placed in the load-bearing trolley.
- the driven part is combined with the mechanical arm to drive the mechanical arm to move.
- the driving part and the driven part are connected by a rope, and the driving part drives the driven part.
- the motor controller is placed in the load trolley for controlling the active part of the rope driving device; the load trolley includes a shell and casters.
- the robotic arm system adopts a rope drive mode, and the active part of the drive device is placed in the load trolley, which not only reduces the weight and volume of the robotic arm itself, but also does not need to carry the active part of the drive device, which reduces the load on the human body and improves the wear Comfort.
- the wearable rope-driven mechanical arm system includes a first follower module and two second follower modules.
- the first follower module is installed at the center of the back of the wearable mechanism, and the two second follower modules are respectively located at the bottom two of the load-bearing trolley. Side, close to the front side; the first follower module and the second follower module are used to measure distance and angle, and send signals to the motor controller.
- the load trolley includes a first caster, a second caster, a first caster drive motor, a second caster drive motor, and two universal wheels.
- the first and second casters are located on the left and right sides of the load trolley, respectively.
- the first caster is connected with the first caster drive motor
- the second caster is connected with the second caster drive motor
- two universal wheels are respectively installed on the front and rear sides of the load trolley
- the first caster drive motor and the second caster drive motor Controlled by the motor controller.
- the rope driving device of each mechanical arm includes a waist joint rope, a shoulder joint rope, an elbow joint rope, and a wrist joint rope passing through the waist joint casing, shoulder joint casing, elbow joint casing, and wrist joint respectively.
- One end of all the sleeves is fixed to the waist module support, and the other end is fixed to one side of the load-bearing trolley.
- each mechanical arm includes a waist module support, a big arm, a forearm, and an end effector.
- the waist module support is fixed on both sides of the wearing mechanism, one end of the big arm is fixed on the waist module support, and the other end is connected to one end of the forearm. Articulated, the other end of the forearm is articulated with the end effector.
- the waist module support includes a support shell, a first bearing seat, a second bearing seat, a cylindrical roller bearing, a deep groove ball bearing, a waist module conversion shaft, a waist joint guide wheel, and a waist joint rope.
- the bearing seat is fixed on the upper part of the bracket shell, which is a hollow cylinder that accommodates cylindrical roller bearings.
- the second bearing seat is fixed on the lower part of the bracket shell, supporting and accommodating deep groove ball bearings.
- two are fixed on the left and right sides of the bracket shell.
- Deep groove ball bearing the two deep groove ball bearing shaft centers are at the same height as the deep groove ball bearing shaft center fixed on the second bearing seat, and the waist module conversion shaft passes through the deep groove ball bearing on the second bearing seat And fixed in the deep groove ball bearings on the left and right sides of the bracket shell, and two lumbar joint guide wheels are fixedly installed on the waist module conversion shaft, and the two lumbar joint guide wheels are respectively located on the deep groove ball bearing on the second bearing seat On both sides
- the boom includes a waist joint shaft, a waist joint support, and two boom plates hinged to the waist joint support.
- the waist joint support includes a base and two brackets fixed on both sides above the base.
- the two boom plates are hinged on On the two supports, the waist joint rotation shaft is fixed below the waist joint support, and the waist joint rotation shaft is fixedly installed in a cylindrical roller bearing.
- the waist joint rope is wound on the waist joint rotation shaft and passes through the waist joint guide wheels.
- the end effector includes a lower wrist support, an upper wrist support, and a manipulator.
- One side of the lower wrist support is fixedly connected to the forearm, the other side is connected to one side of the upper wrist support, and the other upper support One side is fixedly connected with the manipulator.
- the active part of the rope drive device includes a waist joint drive motor, a shoulder joint drive motor, an elbow joint drive motor, a wrist joint drive motor, a waist joint active winch coaxially fixedly mounted with the waist joint drive motor, and a shoulder joint drive
- Shoulder joint active winch fixed coaxially with the motor elbow joint active winch fixed coaxially with the elbow joint drive motor
- wrist joint active winch fixed coaxially with the wrist joint drive motor waist joint active winch wrapped around the waist joint rope
- the shoulder joint rope is wrapped around the shoulder joint active winch
- the elbow joint active winch is wrapped around the first rope of the elbow joint
- the wrist joint active winch is wrapped around the first rope of the wrist joint;
- the driven part of the rope drive device includes the waist joint shaft, the two waist joint guide wheels, the shoulder joint shaft, the elbow joint first shaft, the elbow joint second shaft, the wrist joint first shaft, and the wrist joint second shaft.
- the waist joint active winch is connected to the waist joint shaft through a waist joint rope, and the waist joint rope passes through two waist joint guide wheels;
- the shoulder joint shaft is installed on the two brackets of the waist joint bracket, and the shoulder joint shaft rotates relative to the bracket, the shoulder joint shaft is fixedly connected with the boom plate, and the shoulder joint driven winch is coaxially fixed with the shoulder joint shaft Connection, the active winch of the shoulder joint is connected to the driven winch of the shoulder joint through the rope of the shoulder joint;
- the first rotation axis of the elbow joint is mounted on the two supports of the waist joint support, and the first rotation axis of the elbow joint rotates relative to the support, and the second rotation axis of the elbow joint is mounted on the two big arm plates and is located on the big arm.
- One end of the plate hinged with the forearm and rotates relative to the big arm plate, and the second rotation axis of the elbow joint is fixedly connected with the forearm;
- the first driven winch of the elbow joint and the second driven winch of the elbow joint and the first rotation axis of the elbow joint Coaxial fixed connection
- the third driven winch of the elbow joint is coaxially fixedly connected to the second shaft of the elbow joint;
- the active winch of the elbow joint is connected to the first driven winch of the elbow joint through the first rope of the elbow joint, and the second driven winch of the elbow joint passes through
- the second rope of the elbow joint is connected to the third driven winch of the elbow joint, and the second rope of the elbow joint passes through the elbow joint guide wheel and the elbow joint plastic bearing in turn;
- the first rotation axis of the wrist joint is mounted on the two supports of the waist joint support, and the first rotation axis of the wrist joint rotates relative to the support, and the second rotation axis of the wrist joint is mounted on the lower support of the wrist joint and is relative to the wrist joint.
- the lower bracket rotates, and the second rotating shaft of the wrist joint is fixedly connected with the upper bracket of the wrist joint; the first driven winch of the wrist joint and the second driven winch of the wrist joint are coaxially fixedly connected with the first rotating shaft of the wrist joint, and the third slave of the wrist joint
- the movable winch is coaxially and fixedly connected with the second rotating shaft of the wrist joint; the active winch of the wrist joint is connected to the first driven winch of the wrist joint through the first rope of the wrist joint, and the second driven winch of the wrist joint is connected to the third wrist joint through the second rope of the wrist joint.
- the driven winch, and the second rope of the wrist joint passes through the guide wheel of the wrist joint, the first plastic-coated bearing of the wrist joint, and the second plastic-coated bearing of the wrist joint in turn;
- the shoulder joint driven winch is provided with a first tensioning wheel
- the wrist joint third driven winch is provided with a second tensioning wheel
- the active part of the rope drive device is provided with two tensioning pulley sets.
- the wearable rope-driven mechanical arm system includes a brain-computer interface module, and the brain-computer interface module is used to control a motor controller.
- Figure 1 is a schematic diagram of the structure of the wearable rope-driven mechanical arm system of the present invention
- Figure 2 is a rear view of the wearable rope-driven robotic arm system of the present invention.
- FIG. 3 is a schematic structural diagram of the rope-driven mechanical arm of the present invention.
- FIG. 4 is a schematic diagram of the structure of the waist module support in the present invention.
- Fig. 5 is a schematic diagram of the internal structure of the load-bearing trolley of the present invention.
- a wearable rope-driven robotic arm system includes a wearable mechanism a1, two robotic arms a2 located on both sides of the wearable mechanism a1, a rope drive device, a load trolley a3, a motor controller e8, and a brain
- the machine interface module a4 the robot arm a2 is fixed on both sides of the wearing mechanism a1, and the wearing mechanism a1 includes a waist fixing plate b2 and a retractable shoulder strap b1;
- the rope driving device includes a driving part and a driven part.
- the driving part is placed in the trolley a3, the driven part is combined with the mechanical arm a2, the driving part and the driven part are connected by a rope, and the driving part drives the driven part to move.
- the moving part drives the robot arm a2 to move.
- the motor controller e8 is placed in the load trolley a3 and is used to control the active part of the rope driving device; as shown in Figure 5, the load trolley a3 includes a first caster e18 and a second caster.
- the first caster drive motor e17, the second caster drive motor e5, two universal wheels, the first caster e18 and the second caster e7 are respectively located on the left and right sides of the load trolley a3, the first caster e18 and the first caster
- the driving motor e17 is connected
- the second caster e7 is connected to the second caster driving motor e5
- the two universal wheels are respectively installed on the front and rear sides of the load trolley a3
- the motor controller e8 controls the first caster driving motor e17 and the second caster driving motor e5 movement.
- a first follower module b3 is installed in the center of the back of the wearing mechanism a1, two second follower modules e9 are installed in the load trolley a3, and the second follower modules e9 are respectively located at the bottom sides of the load trolley a3, close to the front side of the load trolley;
- the module e3 and the second follower module e9 measure the distance and angle of the human body relative to the rear load trolley a3 through wireless communication, and send the measured signals to the motor controller e8, which drives the motor e17 by controlling the first caster And the rotation of the second caster drive motor e5 to control the weight-bearing trolley a3 to follow the movement of the human body, reduce the traction of the human body to the weight-bearing trolley, and further reduce the load on the human body.
- the brain-computer interface module a4 is worn on the user's head and is used to collect brain electrical signals, and then send the signals to the motor controller e8 through wireless signal transmission, so that the motor controller e8 controls the driving motor, and the brain Electrical control makes the control of the robotic arm more precise.
- the working principle of the brain-computer interface module has been introduced in detail in the master's degree thesis of Meng Xianpeng of the graduate School of National University of Defense Technology. Repeat it again.
- each robotic arm a2 includes a waist module support b7, a big arm b6, a forearm b5, and an end effector b4.
- the two waist module supports b7 of the two robotic arms are respectively fixed to the wearing mechanism a1.
- one end of the big arm b6 is fixed on the waist module support b7, the other end is hinged to one end of the small arm b5, and the other end of the small arm b5 is connected to the end effector b4.
- the waist module support b7 is connected to the weight trolley a3 through a sleeve set.
- the sleeve set includes lumbar joint sleeves. b11, shoulder joint casing b8, elbow joint casing b9, wrist joint casing b10, when a person is walking, the weight-bearing trolley a3 can move with the person through the connection of the casing.
- the waist module bracket b7 includes a bracket shell d9, a first bearing seat d7, a second bearing seat d1, a cylindrical roller bearing d8, a deep groove ball bearing d5, a waist module conversion shaft d3, and a waist joint guide Wheel d4, waist joint rope d6,
- the first bearing seat d7 is fixed above the inside of the bracket shell d9, and is a hollow cylinder accommodating the cylindrical roller bearing d8, and the second bearing seat d1 is fixed below the inside of the bracket shell d9 to support and
- the deep groove ball bearing d5 is accommodated.
- two deep groove ball bearings d5 are fixed on the left and right sides of the bracket shell d9 respectively.
- the d5 axis is at the same height
- the waist module conversion shaft d3 passes through the deep groove ball bearing d5 on the second bearing seat d1 and is fixed in the deep groove ball bearings d5 on the left and right sides of the bracket shell d9
- the waist module conversion shaft Two waist joint guide wheels d4 are fixedly installed on d3, and the two waist joint guide wheels d4 are respectively located on both sides of the deep groove ball bearing d5 on the second bearing seat d1.
- the big arm b6 includes a waist joint axis c1, a waist joint support c2, and two big arm plates c10 hinged to the waist joint support.
- the waist joint support c2 includes a base and two fixed on both sides above the base. Two brackets, the two big arm plates c10 are hinged on the two brackets respectively, the waist joint axis c1 is fixed under the waist joint support c2, and the waist joint axis c1 is fixedly installed in the cylindrical roller bearing d8, the waist joint rope d6 Wrap around the waist joint shaft c1, pass through the waist joint guide wheel d4, and then pass through the waist joint sleeve b11.
- the end effector b4 includes a lower wrist support c13, an upper wrist support c17, and a manipulator c18.
- One side of the lower wrist support c13 is fixedly connected to the forearm b5, and the other side is connected to the upper wrist support c17 side.
- the other side of the bracket c17 on the joint is fixedly connected with the manipulator c18.
- the active part of the rope driving device includes a waist joint driving motor e15, a shoulder joint driving motor e3, an elbow joint driving motor e1, a wrist joint driving motor e12, and a waist fixedly mounted coaxially with the waist joint driving motor e15.
- the driven part of the rope driving device includes the waist joint rotation axis c1, the two waist joint guide wheels d4, the shoulder joint rotation axis c9, the elbow joint first rotation axis c4, the elbow joint second rotation axis c12, and the wrist joint first rotation axis c23, wrist joint second rotation axis c16, shoulder joint driven winch c8, elbow joint first driven winch c20, elbow joint second driven winch c21, elbow joint third driven winch c11, wrist joint first driven winch c7, wrist joint second driven winch c22, wrist joint third driven winch c15, elbow joint guide wheel c24, elbow joint plasticized bearing c28, wrist joint guide wheel c25, wrist joint first plasticized bearing c29, wrist joint The second plastic-coated bearing c30;
- the waist joint active winch e16 is connected to the waist joint shaft c1 through the waist joint sleeve b11 through the waist joint rope d6, and the waist joint rope d6 passes through two waist joint guide wheels d4, and the waist joint drive motor e15 rotates to drive the waist joint to be active.
- the winch e16 rotates to drive the waist joint shaft c1 to rotate, so that the mechanical arm a2 rotates with the waist joint shaft c1 as the axis;
- the shoulder joint rotation axis c9 is mounted on the two supports of the waist joint support c2, and the shoulder joint rotation axis c9 rotates relative to the waist joint support c2, the shoulder joint rotation axis c9 is fixedly connected to the boom plate c10, and the shoulder joint is driven
- the winch c8 is coaxially and fixedly connected with the shoulder joint shaft c9
- the shoulder joint active winch e4 is connected to the shoulder joint driven winch c8 through the shoulder joint rope c3 through the shoulder joint sleeve b8, and the shoulder joint drive motor e3 rotates to drive the shoulder joint active winch e4 to rotate
- the shoulder joint driven winch c8 rotation drives the shoulder joint shaft c9 to rotate, thereby driving the boom plate c10 to rotate with the shoulder joint shaft c9 as the axis relative to the waist module support c2;
- the first rotation axis c4 of the elbow joint is mounted on the two supports of the waist joint support c2, and the first rotation axis c4 of the elbow joint rotates relative to the support, and the second rotation axis c12 of the elbow joint is mounted on the two big arm plates c10 , Located at the end of the hinged arm plate c10 and the forearm b5, and rotates relative to the arm plate c10, and the elbow joint second axis c12 is fixedly connected with the forearm b5; the elbow joint first driven winch c20 and the elbow joint
- the second driven winch c21 is coaxially fixedly connected with the elbow joint first rotation axis c4, and the elbow joint third driven winch c11 is coaxially fixedly connected with the elbow joint second rotation axis c12;
- the elbow joint active winch e14 is coaxially fixedly connected with the elbow joint first rope c19
- the first driven winch c20 is connected to the elbow joint, the second driven
- the elbow joint drive motor e1 rotates to drive the elbow joint active winch e14 to rotate, thereby driving the elbow joint first driven winch c20 to rotate, and the elbow joint first driven winch c20 to rotate drives the elbow joint first rotation axis c4 Rotate, and then drive the second driven winch c21 of the elbow joint to rotate, thereby driving the third driven winch c11 of the elbow joint to rotate, and then the rotation of the third driven winch c11 drives the second rotation axis c12 of the elbow joint to rotate, and drives the forearm b5 to rotate;
- the first rotation axis c23 of the wrist joint is mounted on the two supports of the waist joint support c2, and the first rotation axis c23 of the wrist joint rotates relative to the support, and the second rotation axis c16 of the wrist joint is mounted on the lower support c13 of the wrist joint, It rotates relative to the lower support c13 of the wrist joint, and the second rotation axis c16 of the wrist joint is fixedly connected to the upper support c17 of the wrist joint;
- the first driven winch c7 of the wrist joint, the second driven winch c22 of the wrist joint and the first rotation axis of the wrist joint C23 is coaxially fixedly connected,
- the wrist joint third driven winch c15 is coaxially fixedly connected to the wrist joint second shaft c16;
- the wrist joint active winch e13 is connected to the wrist joint first driven winch c7 through the wrist joint first rope c6, the wrist joint
- the second driven winch c22 is connected to the third driven winch
- the load trolley a3 includes a first caster e18, a second caster e7, a first caster drive motor e17, a second caster drive motor e5, and two universal wheels.
- the first caster e18 and the second caster e7 are respectively located on the load On the left and right sides of the trolley a3, the first caster e18 is connected to the first caster drive motor e17, and the second caster e7 is connected to the second caster drive motor e5.
- the two universal wheels are respectively installed on the front and rear sides of the load trolley a3.
- a caster drive motor e17 and a second caster drive motor e5 are controlled by a motor controller e8.
- the shoulder joint driven winch c8 is provided with a first tensioning sheave c5
- the wrist joint third driven winch c15 is provided with a second tensioning sheave c14
- the active part of the rope drive device is provided with two tensioning pulley sets to assist Control the tension of the rope.
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- Robotics (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- Manipulator (AREA)
Abstract
一种可穿戴式绳驱动机械臂系统,包括穿戴机构(a1)、位于穿戴机构(a1)两侧的两个机械臂(a2)、绳索驱动装置、负重小车(a3)、电机控制器(e8),绳索驱动装置分为主动部分和从动部分,主动部分的电机等重物置于负重小车(a3)内,减轻穿戴机械臂(a2)背负的负荷,负重小车(a3)可以通过套管随人走动,也可以通过跟随模块测得的信号通过电机控制器(e8)控制运动,从动部分与机械臂(a2)结合,从动部分为双绳驱动,减轻了机械臂(a2)的重量,采用脑机接口模块(a4)控制驱动装置,使对机械臂(a2)的控制更精准。
Description
本发明涉及机械辅助领域领域,具体是一种可穿戴式绳驱动机械臂系统。
随着人口老龄化情况的加剧以及人们工作观念的转变,劳动力短缺问题逐渐凸显。全国50岁以上农民工占比逐年提高,且建筑业、低端制造业等劳动强度高、工作环境差的行业也越来越不被年轻人认可。因此解决劳动力短缺、改善工作条件成为目前中国乃至全世界发展需要解决的难题。
随着机器人技术的发展与逐渐成熟,大规模应用机器人成为破解劳动力短缺难题的重要方向之一。但是目前的机器人还不足以自动识别人的意图,根据人的意图去工作。
随着计算机技术、脑电信号采集技术以及模式识别学科的发展,脑机接口技术研究逐渐兴起。人们可以利用脑电信号向外界输出信息,控制外部设备,协助人体完成作业任务。
飞机制造、航空装配、建筑等行业,由于空间、规模、技术、成本等条件的限制,采用高度自动化的生产线的加工方式并不现实。因此,寻求人机配合、尽可能减小工人劳动强度逐渐成为面向相关行业机器人发展的一个重要方向。
在人机协作方面,可穿戴式协作机器通过在人体躯干或四肢固定机械臂或机械手,可极大程度补充或扩展人的工作能力,如协助人体搬运重物、完成精密或繁琐的装配工作、代替人手在高危环境作业,进而提升作业效率和安全性。
目前阶段存在的可穿戴式机械臂存在以下问题:1)传统可穿戴式机械臂结构笨重、能耗高。沉重的驱动单元直接安装在机械手关节处,增大臂身惯量和体积,导致作业能耗以及人体和可穿戴式机械臂之间动力学耦合的大幅提升,难以保证令人满意的作业精度和续航能力。2)装备整体包括机械臂结构、若干驱动电机以及电池,质量过大,穿戴者易产生不适感。
经对现有技术文献的检索发现:
中国专利公开号为CN 104825258 A的专利文件公开了一种肩部可穿戴功能辅助机械臂,该技术设计了七自由度绳驱双臂,一定程度上克服了传统关节电机驱动型机械臂负载自重比低的问题,但数量众多的电机以及电池等重物均背负在穿戴者肩部,长时间穿戴人体负荷较大,穿戴舒适性也大打折扣。
发明内容
发明目的:针对以上缺点,本发明提供一种可穿戴式绳驱动机械臂系统,采用轻便的驱动装置驱动机械臂,并将驱动装置的主动部分移至负重小车上,解决 穿戴负荷大的问题。
技术方案:为解决上述问题,本发明采用如下技术方案:
一种可穿戴式绳驱动机械臂系统,包括穿戴机构、位于穿戴机构两侧的两个机械臂、绳索驱动装置、负重小车、电机控制器,所述两个机械臂分别固定于穿戴机构两侧;
绳索驱动装置包括主动部分和从动部分,主动部分置于负重小车内,从动部分与机械臂结合,驱动机械臂运动,所述主动部分与从动部分通过绳索连接,主动部分驱动从动部分运动,所述电机控制器置于负重小车内,用于控制绳索驱动装置主动部分;所述负重小车包括外壳、脚轮。
该机械臂系统采用绳驱动方式,驱动装置的主动部分置于负重小车中,既减少了机械臂本身的重量和体积,又不需要背负驱动装置的主动部分,降低了人体的负荷,提升了穿戴的舒适性。
进一步的,该可穿戴式绳驱动机械臂系统包括第一跟随模块和两个第二跟随模块,第一跟随模块安装于穿戴机构背面中心,两个第二跟随模块分别位于负重小车内的底部两侧,靠近前侧;所述第一跟随模块和第二跟随模块用于测量距离和角度,并将信号发送给电机控制器。
进一步的,所述负重小车包括第一脚轮、第二脚轮、第一脚轮驱动电机、第二脚轮驱动电机、两个万向轮,所述第一脚轮和第二脚轮分别位于负重小车左右两侧,第一脚轮与第一脚轮驱动电机连接,第二脚轮与第二脚轮驱动电机连接,两个万向轮分别安装于负重小车前后两侧,所述第一脚轮驱动电机和第二脚轮驱动电机由电机控制器控制。
进一步的,所述每个机械臂的绳驱动装置中包括腰关节绳索、肩关节绳索、肘关节绳索、腕关节绳索分别穿过腰关节套管、肩关节套管、肘关节套管、腕关节套管,且所述所有套管一端固定于腰部模块支架,另一端固定于负重小车的一侧。
进一步的,所述每个机械臂包括腰部模块支架、大臂、小臂、末端执行器,腰部模块支架固定于穿戴机构两侧,大臂一端固定在腰部模块支架上,另一端与小臂一端铰接,小臂另一端与末端执行器铰接。
进一步的,所述腰部模块支架包括支架外壳、第一轴承座、第二轴承座、圆柱滚子轴承、深沟球轴承、腰部模块转换轴、腰关节导向轮、腰关节绳索,所述第一轴承座固定于支架外壳内部上方,为一个容纳圆柱滚子轴承的中空圆柱,第二轴承座固定于支架外壳内部下方,支撑并容纳深沟球轴承,另外支架外壳内部 左右两侧分别固定两个深沟球轴承,所述两个深沟球轴承轴心与固定在第二轴承座上的深沟球轴承轴心位于同一高度,腰部模块转换轴穿过第二轴承座上的深沟球轴承并固定在支架外壳内部左右两侧的深沟球轴承内,且在腰部模块转换轴上固定安装两个腰关节导向轮,两个腰关节导向轮分别位于第二轴承座上的深沟球轴承的两侧;
所述大臂包括腰关节转轴、腰关节支架、与腰关节支架铰接的两个大臂板,腰关节支架包括底座和固定在底座上方两侧的两个支架,两个大臂板分别铰接在两个支架上,腰关节转轴固定在腰关节支架下方,且腰关节转轴固定安装在圆柱滚子轴承中,所述腰关节绳索缠绕在腰关节转轴上,并通过腰关节导向轮。
进一步的,所述末端执行器包括腕关节下支架、腕关节上支架、机械手,腕关节下支架一侧与小臂固定连接,另一侧与腕关节上支架一侧连接,腕关节上支架另一侧与机械手固定连接。
进一步的,所述绳索驱动装置主动部分包括腰关节驱动电机、肩关节驱动电机、肘关节驱动电机、腕关节驱动电机、与腰关节驱动电机同轴固定安装的腰关节主动绞盘、与肩关节驱动电机同轴固定安装的肩关节主动绞盘、与肘关节驱动电机同轴固定安装的肘关节主动绞盘、与腕关节驱动电机同轴固定安装的腕关节主动绞盘,腰关节主动绞盘上缠绕腰关节绳索,肩关节主动绞盘上缠绕肩关节绳索,肘关节主动绞盘缠绕肘关节第一绳索,腕关节主动绞盘缠绕腕关节第一绳索;
所述绳索驱动装置从动部分包括所述腰关节转轴、所述两个腰关节导向轮、肩关节转轴、肘关节第一转轴、肘关节第二转轴、腕关节第一转轴、腕关节第二转轴、肩关节从动绞盘、肘关节第一从动绞盘、肘关节第二从动绞盘、肘关节第三从动绞盘、腕关节第一从动绞盘、腕关节第二从动绞盘、腕关节第三从动绞盘、肘关节导向轮、肘关节包塑轴承、腕关节导向轮、腕关节第一包塑轴承、腕关节第二包塑轴承;
所述腰关节主动绞盘通过腰关节绳索连接腰关节转轴,并且腰关节绳索中间经过两个腰关节导向轮;
所述肩关节转轴安装于腰关节支架的两个支架上,且该肩关节转轴相对支架旋转运动,所述肩关节转轴与大臂板固定连接,肩关节从动绞盘与肩关节转轴同轴固定连接,肩关节主动绞盘通过肩关节绳索连接肩关节从动绞盘;
所述肘关节第一转轴安装于腰关节支架的两个支架上,且该肘关节第一转轴相对于支架旋转运动,所述肘关节第二转轴安装于两个大臂板上,位于大臂板与小臂铰接的一端,并相对于大臂板旋转,且该肘关节第二转轴与小臂固定连接;肘关节第一从动绞盘和肘关节第二从动绞盘与肘关节第一转轴同轴固定连接,肘 关节第三从动绞盘与肘关节第二转轴同轴固定连接;肘关节主动绞盘通过肘关节第一绳索连接肘关节第一从动绞盘,肘关节第二从动绞盘通过肘关节第二绳索连接肘关节第三从动绞盘,且肘关节第二绳索中间依次经过肘关节导向轮和肘关节包塑轴承;
所述腕关节第一转轴安装于腰关节支架的两个支架上,且该腕关节第一转轴相对于支架旋转运动,所述腕关节第二转轴安装于腕关节下支架,并相对于腕关节下支架旋转,且该腕关节第二转轴与腕关节上支架固定连接;腕关节第一从动绞盘和腕关节第二从动绞盘与腕关节第一转轴同轴固定连接,腕关节第三从动绞盘与腕关节第二转轴同轴固定连接;腕关节主动绞盘通过腕关节第一绳索连接腕关节第一从动绞盘,腕关节第二从动绞盘通过腕关节第二绳索连接腕关节第三从动绞盘,且腕关节第二绳索中间依次经过腕关节导向轮、腕关节第一包塑轴承和腕关节第二包塑轴承;
进一步的,所述肩关节从动绞盘处设有第一张紧轮,腕关节第三从动绞盘处设有第二张紧轮,绳索驱动装置主动部分设有两个张紧滑轮组。
进一步的,该可穿戴式绳驱动机械臂系统包括脑机接口模块,脑机接口模块用于控制电机控制器。
图1是本发明中可穿戴式绳驱动机械臂系统的结构示意图;
图2是本发明中可穿戴式绳驱动机械臂系统的后视图;
图3是本发明中绳驱动机械臂的结构示意图;
图4是本发明中腰部模块支座的结构示意图;
图5是本发明中负重小车内部的结构示意图。
请结合图1所示,一种可穿戴式绳驱动机械臂系统,包括穿戴机构a1、位于穿戴机构a1两侧的两个机械臂a2、绳索驱动装置、负重小车a3、电机控制器e8以及脑机接口模块a4,所述机械臂a2固定于穿戴机构a1两侧,穿戴机构a1包括腰部固定板b2和可伸缩肩带b1;
绳索驱动装置包括主动部分和从动部分,主动部分置于负重小车a3内,从动部分与机械臂a2结合,所述主动部分与从动部分通过绳索连接,主动部分驱动从动部分运动,从动部分带动机械臂a2运动,所述电机控制器e8置于负重小车a3内,用于控制绳索驱动装置主动部分;如图5所示,所述负重小车a3包括第一脚轮e18、第二脚轮e7、第一脚轮驱动电机e17、第二脚轮驱动电机e5、两个万向轮,所述第一脚轮e18和第二脚轮e7分别位于负重小车a3左右两侧,第 一脚轮e18与第一脚轮驱动电机e17连接,第二脚轮e7与第二脚轮驱动电机e5连接,两个万向轮分别安装于负重小车a3前后两侧,电机控制器e8控制第一脚轮驱动电机e17和第二脚轮驱动电机e5的运动。
穿戴机构a1背面中心设置第一跟随模块b3,负重小车a3内设置两个第二跟随模块e9,第二跟随模块e9分别位于负重小车a3内的底部两侧,靠近负重小车前侧;第一跟随模块e3和第二跟随模块e9通过无线通信方式测量人体相对于后方负重小车a3的距离和角度,并将测得的信号发送给电机控制器e8,电机控制器e8通过控制第一脚轮驱动电机e17和第二脚轮驱动电机e5的旋转来实现控制负重小车a3跟随人体运动,减少人体对负重小车的牵引力,进一步减轻人体的负荷。
所述脑机接口模块a4穿戴于使用者的头部,用于采集脑电信号,然后通过无线信号传输的方式将信号发送给电机控制器e8,从而通过电机控制器e8控制驱动电机,采用脑电控制,使对机械臂的控制更精准,脑机接口模块的工作原理在国防科技大学研究生院孟宪鹏的硕士学位论文《多关节机械臂的脑机控制方法探索》中已经详细介绍,在此不再赘述。
如图2所示,所述每个机械臂a2包括腰部模块支架b7、大臂b6、小臂b5、末端执行器b4,两个机械臂的两个腰部模块支架b7分别固定于穿戴机构a1两侧侧,大臂b6一端固定在腰部模块支架b7上,另一端与小臂b5一端铰接,小臂b5另一端与末端执行器b4连接。腰部模块支架b7通过套管组与负重小车a3连接,所述套管组一端固定于腰部模块支架b7后侧,另一端固定于负重小车a3的一侧,所述套管组包括腰关节套管b11、肩关节套管b8、肘关节套管b9、腕关节套管吧b10,当人走动时,负重小车a3通过套管的连接可以随人运动。
如图4所示,所述腰部模块支架b7包括支架外壳d9、第一轴承座d7、第二轴承座d1、圆柱滚子轴承d8、深沟球轴承d5、腰部模块转换轴d3、腰关节导向轮d4、腰关节绳索d6,所述第一轴承座d7固定于支架外壳d9内部上方,为一个容纳圆柱滚子轴承d8的中空圆柱,第二轴承座d1固定于支架外壳d9内部下方,支撑并容纳深沟球轴承d5,另外支架外壳d9内部左右两侧分别固定两个深沟球轴承d5,所述两个深沟球轴承d5轴心与固定在第二轴承座d1上的深沟球轴承d5轴心位于同一高度,腰部模块转换轴d3穿过第二轴承座d1上的深沟球轴承d5并固定在支架外壳d9内部左右两侧的深沟球轴承d5内,且在腰部模块转换轴d3上固定安装两个腰关节导向轮d4,两个腰关节导向轮d4分别位于第二轴承座d1上的深沟球轴承d5的两侧。
如图3所示,所述大臂b6包括腰关节转轴c1、腰关节支架c2、与腰关节支 架铰接的两个大臂板c10,腰关节支架c2包括底座和固定在底座上方两侧的两个支架,两个大臂板c10分别铰接在两个支架上,腰关节转轴c1固定在腰关节支架c2下方,且腰关节转轴c1固定安装在圆柱滚子轴承d8中,所述腰关节绳索d6缠绕在腰关节转轴c1上,并通过腰关节导向轮d4,然后穿过腰关节套管b11。
所述末端执行器b4包括腕关节下支架c13、腕关节上支架c17、机械手c18,腕关节下支架c13一侧与小臂b5固定连接,另一侧与腕关节上支架c17一侧连接,腕关节上支架c17另一侧与机械手c18固定连接。
如图5所示,所述绳索驱动装置主动部分包括腰关节驱动电机e15、肩关节驱动电机e3、肘关节驱动电机e1、腕关节驱动电机e12、与腰关节驱动电机e15同轴固定安装的腰关节主动绞盘e16、与肩关节驱动电机e3同轴固定安装的肩关节主动绞盘e4、与肘关节驱动电机e1同轴固定安装的肘关节主动绞盘e14、与腕关节驱动电机e12同轴固定安装的腕关节主动绞盘e13,腰关节主动绞盘e16上缠绕腰关节绳索d6,肩关节主动绞盘e4上缠绕肩关节绳索c3,肘关节主动绞盘e14缠绕肘关节第一绳索c19,腕关节主动绞盘e13缠绕腕关节第一绳索c6;
所述绳索驱动装置从动部分包括所述腰关节转轴c1、所述两个腰关节导向轮d4、肩关节转轴c9、肘关节第一转轴c4、肘关节第二转轴c12、腕关节第一转轴c23、腕关节第二转轴c16、肩关节从动绞盘c8、肘关节第一从动绞盘c20、肘关节第二从动绞盘c21、肘关节第三从动绞盘c11、腕关节第一从动绞盘c7、腕关节第二从动绞盘c22、腕关节第三从动绞盘c15、肘关节导向轮c24、肘关节包塑轴承c28、腕关节导向轮c25、腕关节第一包塑轴承c29、腕关节第二包塑轴承c30;
所述腰关节主动绞盘e16通过腰关节绳索d6穿过腰关节套管b11连接腰关节转轴c1,并且腰关节绳索d6中间经过两个腰关节导向轮d4,腰关节驱动电机e15旋转带动腰关节主动绞盘e16旋转,从而驱动腰关节转轴c1旋转,使机械臂a2以腰关节转轴c1为轴心旋转;
所述肩关节转轴c9安装于腰关节支架c2的两个支架上,且该肩关节转轴c9相对腰关节支架c2旋转运动,所述肩关节转轴c9与大臂板c10固定连接,肩关节从动绞盘c8与肩关节转轴c9同轴固定连接,肩关节主动绞盘e4通过肩关节绳索c3穿过肩关节套管b8连接肩关节从动绞盘c8,肩关节驱动电机e3旋转带动肩关节主动绞盘e4旋转,从而驱动肩关节从动绞盘c8旋转,肩关节从动绞盘c8旋转带动肩关节转轴c9旋转,从而带动大臂板c10以肩关节转轴c9为轴心相对腰部模块支架c2旋转;
所述肘关节第一转轴c4安装于腰关节支架c2的两个支架上,且该肘关节第一转轴c4相对于支架旋转运动,所述肘关节第二转轴c12安装于两个大臂板c10上,位于大臂板c10与小臂b5铰接的一端,并相对于大臂板c10旋转,且该肘关节第二转轴c12与小臂b5固定连接;肘关节第一从动绞盘c20和肘关节第二从动绞盘c21与肘关节第一转轴c4同轴固定连接,肘关节第三从动绞盘c11与肘关节第二转轴c12同轴固定连接;肘关节主动绞盘e14通过肘关节第一绳索c19连接肘关节第一从动绞盘c20,肘关节第二从动绞盘c21通过肘关节第二绳索c26连接肘关节第三从动绞盘c11,且肘关节第二绳索c26中间依次经过肘关节导向轮c24和肘关节包塑轴承c28;肘关节驱动电机e1旋转带动肘关节主动绞盘e14旋转,从而驱动肘关节第一从动绞盘c20旋转,肘关节第一从动绞盘c20旋转带动肘关节第一转轴c4旋转,然后带动肘关节第二从动绞盘c21旋转,从而驱动肘关节第三从动绞盘c11旋转,然后第三从动绞盘c11旋转带动肘关节第二转轴c12旋转,并带动小臂b5旋转;
所述腕关节第一转轴c23安装于腰关节支架c2的两个支架上,且该腕关节第一转轴c23相对于支架旋转运动,所述腕关节第二转轴c16安装于腕关节下支架c13,并相对于腕关节下支架c13旋转,且该腕关节第二转轴c16与腕关节上支架c17固定连接;腕关节第一从动绞盘c7和腕关节第二从动绞盘c22与腕关节第一转轴c23同轴固定连接,腕关节第三从动绞盘c15与腕关节第二转轴c16同轴固定连接;腕关节主动绞盘e13通过腕关节第一绳索c6连接腕关节第一从动绞盘c7,腕关节第二从动绞盘c22通过腕关节第二绳索c27连接腕关节第三从动绞盘c15,且腕关节第二绳索c27中间依次经过腕关节导向轮c25、腕关节第一包塑轴承c29和腕关节第二包塑轴承c30;腕关节驱动电机e12旋转带动腕关节主动绞盘e13旋转,从而驱动腕关节第一从动绞盘c7旋转,腕关节第一从动绞盘c7旋转带动腕关节第一转轴c23旋转,然后带动腕关节第二从动绞盘c22旋转,从而驱动腕关节第三从动绞盘c15旋转,然后腕关节第三从动绞盘c15旋转带动腕关节第二转轴c16旋转,并带动腕关节上支架c17旋转;
所述负重小车a3包括第一脚轮e18、第二脚轮e7、第一脚轮驱动电机e17、第二脚轮驱动电机e5、两个万向轮,所述第一脚轮e18和第二脚轮e7分别位于负重小车a3左右两侧,第一脚轮e18与第一脚轮驱动电机e17连接,第二脚轮e7与第二脚轮驱动电机e5连接,两个万向轮分别安装于负重小车a3前后两侧,所述第一脚轮驱动电机e17和第二脚轮驱动电机e5由电机控制器e8控制。
所述肩关节从动绞盘c8处设有第一张紧轮c5,腕关节第三从动绞盘c15处设有第二张紧轮c14,绳索驱动装置主动部分设有两个张紧滑轮组,辅助控制绳 索的张紧。
本发明具体实现的方法和途径很多,以上所述仅是本发明的优选实施方式。应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。
Claims (10)
- 一种可穿戴式绳驱动机械臂系统,其特征在于,包括穿戴机构、位于穿戴机构两侧的两个机械臂、绳索驱动装置、负重小车以及电机控制器,所述两个机械臂分别固定于穿戴机构两侧;绳索驱动装置包括主动部分和从动部分,主动部分置于负重小车内,从动部分与机械臂结合,驱动机械臂运动,所述主动部分与从动部分通过绳索连接,主动部分驱动从动部分运动,所述电机控制器置于负重小车内,用于控制绳索驱动装置主动部分;所述负重小车包括外壳、脚轮。
- 根据权利要求1所述的可穿戴式绳驱动机械臂系统,其特征在于,所述负重小车包括第一脚轮、第二脚轮、第一脚轮驱动电机、第二脚轮驱动电机、两个万向轮,所述第一脚轮和第二脚轮分别位于负重小车左右两侧,第一脚轮与第一脚轮驱动电机连接,第二脚轮与第二脚轮驱动电机连接,两个万向轮分别安装于负重小车前后两侧,所述第一脚轮驱动电机和第二脚轮驱动电机由电机控制器控制。
- 根据权利要求1所述的可穿戴式绳驱动机械臂系统,其特征在于,包括第一跟随模块和两个第二跟随模块,第一跟随模块安装于穿戴机构背面中心,两个第二跟随模块分别位于负重小车内的底部两侧,靠近前侧;所述第一跟随模块和第二跟随模块用于测量距离和角度,并将信号发送给电机控制器。
- 根据权利要求1所述的可穿戴式绳驱动机械臂系统,其特征在于,所述每个机械臂的绳驱动装置中包括腰关节绳索、肩关节绳索、肘关节绳索、腕关节绳索分别穿过腰关节套管、肩关节套管、肘关节套管、腕关节套管,且所述所有套管一端固定于腰部模块支架,另一端固定于负重小车的一侧。
- 根据权利要求1所述的可穿戴式绳驱动机械臂系统,其特征在于,所述每个机械臂包括腰部模块支架、大臂、小臂、末端执行器,腰部模块支架固定于穿戴机构两侧,大臂一端固定在腰部模块支架上,另一端与小臂一端铰接,小臂另一端与末端执行器铰接。
- 根据权利要求5所述的可穿戴式绳驱动机械臂系统,其特征在于,所述腰部模块支架包括支架外壳、第一轴承座、第二轴承座、圆柱滚子轴承、深沟球轴承、腰部模块转换轴、腰关节导向轮、腰关节绳索,所述第一轴承座固定于支架外壳内部上方,为一个容纳圆柱滚子轴承的中空圆柱,第二轴承座固定于支架外壳内部下方,支撑并容纳深沟球轴承,另外支架外壳内部左右两侧分别固定两个深沟球轴承,所述两个深沟球轴承轴心与固定在第二轴承座上的深沟球轴承轴心位于同一高度,腰部模块转换轴穿过第二轴承座上的深沟球轴承并固定在支架外壳内部左右两侧的深沟球轴承内,且在腰部模块转换轴上固定安装两个腰关节 导向轮,两个腰关节导向轮分别位于第二轴承座上的深沟球轴承的两侧;所述大臂包括腰关节转轴、腰关节支架、与腰关节支架铰接的两个大臂板,腰关节支架包括底座和固定在底座上方两侧的两个支架,两个大臂板分别铰接在两个支架上,腰关节转轴固定在腰关节支架下方,且腰关节转轴固定安装在圆柱滚子轴承中,所述腰关节绳索缠绕在腰关节转轴上,并通过腰关节导向轮。
- 根据权利要求5所述的可穿戴式绳驱动机械臂系统,其特征在于,所述末端执行器包括腕关节下支架、腕关节上支架、机械手,腕关节下支架一侧与小臂固定连接,另一侧与腕关节上支架一侧连接,腕关节上支架另一侧与机械手固定连接。
- 根据权利要求6或7所述的可穿戴式绳驱动机械臂系统,其特征在于,所述绳索驱动装置主动部分包括腰关节驱动电机、肩关节驱动电机、肘关节驱动电机、腕关节驱动电机、与腰关节驱动电机同轴固定安装的腰关节主动绞盘、与肩关节驱动电机同轴固定安装的肩关节主动绞盘、与肘关节驱动电机同轴固定安装的肘关节主动绞盘、与腕关节驱动电机同轴固定安装的腕关节主动绞盘,腰关节主动绞盘上缠绕腰关节绳索,肩关节主动绞盘上缠绕肩关节绳索,肘关节主动绞盘缠绕肘关节第一绳索,腕关节主动绞盘缠绕腕关节第一绳索;所述绳索驱动装置从动部分包括所述腰关节转轴、所述两个腰关节导向轮、肩关节转轴、肘关节第一转轴、肘关节第二转轴、腕关节第一转轴、腕关节第二转轴、肩关节从动绞盘、肘关节第一从动绞盘、肘关节第二从动绞盘、肘关节第三从动绞盘、腕关节第一从动绞盘、腕关节第二从动绞盘、腕关节第三从动绞盘、肘关节导向轮、肘关节包塑轴承、腕关节导向轮、腕关节第一包塑轴承、腕关节第二包塑轴承;所述腰关节主动绞盘通过腰关节绳索连接腰关节转轴,并且腰关节绳索中间经过两个腰关节导向轮;所述肩关节转轴安装于腰关节支架的两个支架上,且该肩关节转轴相对支架旋转运动,所述肩关节转轴与大臂板固定连接,肩关节从动绞盘与肩关节转轴同轴固定连接,肩关节主动绞盘通过肩关节绳索连接肩关节从动绞盘;所述肘关节第一转轴安装于腰关节支架的两个支架上,且该肘关节第一转轴相对于支架旋转运动,所述肘关节第二转轴安装于两个大臂板上,位于大臂板与小臂铰接的一端,并相对于大臂板旋转,且该肘关节第二转轴与小臂固定连接;肘关节第一从动绞盘和肘关节第二从动绞盘与肘关节第一转轴同轴固定连接,肘关节第三从动绞盘与肘关节第二转轴同轴固定连接;肘关节主动绞盘通过肘关节第一绳索连接肘关节第一从动绞盘,肘关节第二从动绞盘通过肘关节第二绳索连 接肘关节第三从动绞盘,且肘关节第二绳索中间依次经过肘关节导向轮和肘关节包塑轴承;所述腕关节第一转轴安装于腰关节支架的两个支架上,且该腕关节第一转轴相对于支架旋转运动,所述腕关节第二转轴安装于腕关节下支架,并相对于腕关节下支架旋转,且该腕关节第二转轴与腕关节上支架固定连接;腕关节第一从动绞盘和腕关节第二从动绞盘与腕关节第一转轴同轴固定连接,腕关节第三从动绞盘与腕关节第二转轴同轴固定连接;腕关节主动绞盘通过腕关节第一绳索连接腕关节第一从动绞盘,腕关节第二从动绞盘通过腕关节第二绳索连接腕关节第三从动绞盘,且腕关节第二绳索中间依次经过腕关节导向轮、腕关节第一包塑轴承和腕关节第二包塑轴承;
- 根据权利要求8所述的可穿戴式绳驱动机械臂系统,其特征在于,所述肩关节从动绞盘处设有第一张紧轮,腕关节第三从动绞盘处设有第二张紧轮,绳索驱动装置主动部分设有两个张紧滑轮组。
- 根据权利要求1所述的可穿戴式绳驱动机械臂系统,其特征在于,包括脑机接口模块,脑机接口模块用于控制电机控制器。
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| CN114347007A (zh) * | 2022-02-22 | 2022-04-15 | 青岛科技大学 | 一种用于绳驱动蛇形机械臂的驱动装置 |
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| CN114603546B (zh) * | 2022-04-27 | 2023-10-03 | 西安交通大学 | 一种可穿戴式变刚度绳驱动系统 |
| CN115488873A (zh) * | 2022-10-19 | 2022-12-20 | 北京航空航天大学 | 一种少输入的绳驱动变刚度七自由度机械臂 |
| CN115488873B (zh) * | 2022-10-19 | 2024-06-07 | 北京航空航天大学 | 一种少输入的绳驱动变刚度七自由度机械臂 |
| CN119704164A (zh) * | 2024-12-04 | 2025-03-28 | 余姚市机器人研究中心 | 一种人形机械臂 |
| CN119704164B (zh) * | 2024-12-04 | 2025-12-16 | 余姚市机器人研究中心 | 一种人形机械臂 |
Also Published As
| Publication number | Publication date |
|---|---|
| US12076855B2 (en) | 2024-09-03 |
| US20230191590A1 (en) | 2023-06-22 |
| CN111805574A (zh) | 2020-10-23 |
| CN111805574B (zh) | 2022-11-04 |
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