CN106239481A - A kind of exoskeleton robot micro hydraulic servosystem - Google Patents

A kind of exoskeleton robot micro hydraulic servosystem Download PDF

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Publication number
CN106239481A
CN106239481A CN201610777958.0A CN201610777958A CN106239481A CN 106239481 A CN106239481 A CN 106239481A CN 201610777958 A CN201610777958 A CN 201610777958A CN 106239481 A CN106239481 A CN 106239481A
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China
Prior art keywords
oil pump
valve
oil
pressure
joint
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CN201610777958.0A
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Chinese (zh)
Inventor
熊彬
袁昌耀
曹秀芳
宋小路
孙家庆
魏雪曼
韩宁
涂亦虓
张燕枝
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Nanjing Chenguang Group Co Ltd
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Nanjing Chenguang Group Co Ltd
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Priority to CN201610777958.0A priority Critical patent/CN106239481A/en
Publication of CN106239481A publication Critical patent/CN106239481A/en
Pending legal-status Critical Current

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    • 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
    • B25J9/10Programme-controlled manipulators characterised by positioning means for manipulator elements
    • B25J9/14Programme-controlled manipulators characterised by positioning means for manipulator elements fluid

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  • Engineering & Computer Science (AREA)
  • Robotics (AREA)
  • Mechanical Engineering (AREA)
  • Manipulator (AREA)

Abstract

The present invention provides a kind of exoskeleton robot micro hydraulic servosystem, including fuel tank, hydraulic servo power unit and joint oil cylinder, joint oil cylinder is some, hydraulic servo power unit is some and a shared fuel tank and each hydraulic servo power unit are provided with an oil pump and the motor mated with oil pump, the output of this oil pump controls to be positioned at the one or more joints oil cylinder on human body one or the upper arm and each oil pump control difference joint oil cylinder, and each motor controls corresponding oil pump flow for mating the load pressure that the joint oil cylinder of this oil pump control is born by regulation rotating speed.The present invention avoids hydraulic system to be constantly in high-pressure work state, reduces system heat generation to greatest extent, improves running efficiency of system and lengthens working hours.

Description

A kind of exoskeleton robot micro hydraulic servosystem
Technical field
The present invention relates to a kind of hydraulic control technology, particularly a kind of exoskeleton robot micro hydraulic servosystem.
Background technology
Exoskeleton robot is a kind of man-machine integration machinery that people can be allowed to dress, using the teaching of the invention it is possible to provide soft to human body Internal carries out configuration, and the external structure built and protect, particularly lower limb exoskeleton robot are used for expanding or strengthening The physiological function of one people.Owing to exoskeleton robot can be closely linked supporting, move, protect three functions, tool Have many unique performance advantages, therefore can be widely used in military affairs (improving soldier's fighting efficiency), civilian (constructions work, Earthquake relief work and speedily carry out rescue work) and the medical treatment field such as (patients bed nursing, medical rehabilitation).
At present, exoskeleton robot mainly uses hydraulic-driven and motor to drive, and compared with motor driving, hydraulic-driven is held Loading capability is big and is prone to miniaturization, stable drive and have pooling feature, is easily controlled and is particularly well-suited to the use ring in field Border, therefore hydraulic-driven has wider application in exoskeleton robot, and no matter hydraulic drive type exoskeleton robot is in army In thing or the most civilian on, be all following development trend.But current domestic close-coupled Hydrauservo System relies on substantially import, Use conventional hydraulic principle and hydraulic structure, by a set of motor-pump power system, (i.e. close fuel-economizing for all executive components Cylinder) pressure and flow are provided, make hydraulic system be in high pressure and the duty of big flow all the time, cause hydraulic work system Time is short, and noise is big, the problems such as power-mass ratio is relatively low, it is impossible to meet exoskeleton robot low noise, lightweight, long-time work The requirement made.Therefore a kind of lightweight, miniature liquid of rapid heat dissipation, longevity of service that power is provided is designed for exoskeleton robot Pressure servosystem has very important practical significance.
Summary of the invention
It is an object of the invention to provide a kind of exoskeleton robot micro hydraulic servosystem, solve conventional hydraulic pressure and watch Dress system high cost with low efficiency, quality weight, the problem that heating is big and the working time is short, preferably meet the work need of exoskeleton robot Ask.
A kind of exoskeleton robot micro hydraulic servosystem, including fuel tank, hydraulic servo power unit and pass fuel-economizing Cylinder.Described joint oil cylinder is some, and described hydraulic servo power unit is some and a shared fuel tank and each hydraulic servo power list Unit is provided with an oil pump and the motor mated with oil pump;The output of this oil pump controls the one or more passes being positioned on human body one or the upper arm Fuel-economizing cylinder and each oil pump control difference joint oil cylinder;Each motor by regulation rotating speed control corresponding oil pump flow for Join the load pressure that the joint oil cylinder of this oil pump control is born.
Based on said system, each hydraulic servo power unit includes oil pump, motor, filter, front end electromagnetic valve, safety Valve, also includes and the joint electromagnetic valve of joint oil cylinder quantity Matching of oil pump control, servo valve, survey in hydraulic servo power unit Crimp head;Wherein oil pump enters oilhole and is connected with fuel tank oil outlet, and motor is connected with oil pump, and filter enters oilhole and oil pump oil outlet Connect, filter oil outlet respectively with front end electromagnetic valve input, relief valve input, pressure transducer and servo valve input Connecting, front end electromagnetic valve outfan is connected with mailbox return port, relief valve outfan respectively with joint electromagnetic valve input and watching Taking valve input to connect, joint electromagnetic valve outfan is connected with pressure measuring tie-in, and servo valve outfan is connected with joint oil cylinder.
Based on said system, described top of oil-tank arranges breather valve and obturating cup;Wherein breather valve pressure in fuel tank surpasses Opening when crossing atmospheric pressure and close when mailbox inside and outside differential pressure is zero, obturating cup is arranged between breather valve and fuel tank.
Based on said system, described electromagnetic valve is two-position two-way solenoid valve.
Based on said system, described motor is DC brushless motor.
The present invention compared with prior art, has the advantage that
(1) according to the work characteristics of exoskeleton robot, the hydraulic servo power unit that the present invention utilizes two sets independent carries For power, it is achieved fixed displacement speed Control, it is to avoid hydraulic system is constantly in high-pressure work state, reduces system to greatest extent Heating, improves running efficiency of system and lengthens working hours.
(2) use the power combination of the embedded oil pump+DC brushless motor of small-sized efficient, hydraulic system is highly collected Become design, it is achieved the lightweight of system structure and miniaturization, the operating noise of system can also be reduced simultaneously.
(3) system can make knee joint oil cylinder and hip joint oil cylinder be in servo-actuated state by two-position two-way solenoid valve, it is simple to The wearing of exoskeleton robot device and walking.
Below in conjunction with Figure of description, the present invention is described further.
Accompanying drawing explanation
Fig. 1 is the hydraulic schematic diagram of the present invention.
Fig. 2 is the appearance assumption diagram of the embodiment of the present invention.
Fig. 3 is the front section view of the embodiment of the present invention.
Detailed description of the invention
In conjunction with Fig. 1, a kind of exoskeleton robot micro hydraulic servosystem, including fuel tank, hydraulic servo power unit With joint oil cylinder.Described joint oil cylinder is some, and described hydraulic servo power unit is some and a shared fuel tank and each hydraulic pressure are watched Take power unit and be provided with an oil pump and the motor mated with oil pump;The output of this oil pump controls be positioned on human body one or the upper arm one Or multiple joints oil cylinder and each oil pump control difference joint oil cylinder;Each motor controls corresponding oil pump flow by regulation rotating speed For mating the load pressure that the joint oil cylinder of this oil pump control is born.
Each hydraulic servo power unit includes oil pump, motor, filter, front end electromagnetic valve, relief valve, also includes and liquid The joint electromagnetic valve of joint oil cylinder quantity Matching of oil pump control, servo valve, pressure measuring tie-in in pressure servo power unit;Wherein oil Pumping into oilhole to be connected with fuel tank oil outlet, motor is connected with oil pump, and filter enters oilhole and is connected with oil pump oil outlet, and filter goes out Oilhole is connected with front end electromagnetic valve input, relief valve input, pressure transducer and servo valve input respectively, front end electromagnetism Valve outfan is connected with mailbox return port, and relief valve outfan connects with joint electromagnetic valve input and servo valve input respectively Connecing, joint electromagnetic valve outfan is connected with pressure measuring tie-in, and servo valve outfan is connected with joint oil cylinder.
Described top of oil-tank arranges breather valve and obturating cup;Wherein breather valve pressure in fuel tank is opened when exceeding atmospheric pressure And close when mailbox inside and outside differential pressure is zero, obturating cup is arranged between breather valve and fuel tank.
Described oil pump is arranged in fuel tank.
Hydraulic servo power unit oil circuit maximum pressure is set in described relief valve, if oil circuit pressure is more than maximum pressure, Then work reduction oil circuit pressure.
Described pressure measuring tie-in connects external pressure table.
Described electromagnetic valve is two-position two-way solenoid valve.
Described motor is DC brushless motor.
The present invention can preferably meet the work requirements of exoskeleton robot, except the exoskeleton robot being equipped with in army Outside upper application, it is also possible to the exoskeleton robot for fields such as army rear service, rescue and relief work, patients ' recoveries provides power source.
Embodiment
In conjunction with Fig. 2, Fig. 3, the present embodiment designs the hydraulic servo power list that two sets are independent as a example by knee joint and hip joint Unit, the most a set of hydraulic servo power unit drives the first knee joint oil cylinder 28 and the first hip joint oil cylinder 30, another set of hydraulic pressure Servo power unit drives the second knee joint oil cylinder 29 and the second hip joint oil cylinder 31.Two set hydraulic servo power units share oil Case 1.
A set of hydraulic servo power unit includes first oil pump the 4, first motor the 6, first filter the 8, first pressure sensing Device the 10, first relief valve the 12, first servo valve the 14, second servo valve the 15, first electromagnetic valve the 18, second electromagnetic valve the 19, the 3rd electricity Magnet valve the 20, first pressure measuring tie-in the 24, second pressure measuring tie-in 25.Wherein first filter the 8, first pressure transducer 10, first is pacified Full valve the 12, first servo valve the 14, second servo valve the 15, first electromagnetic valve the 18, second electromagnetic valve the 19, the 3rd electromagnetic valve 20, first Pressure measuring tie-in the 24, second pressure measuring tie-in 25 is all integrated on the first valve block 32.The hydraulic oil direct admission valve that first oil pump 4 provides Block, by after the first filter 8 and valve block internal oil passages respectively with first pressure transducer the 10, first relief valve 12, first watch Take valve the 14, second servo valve 15 to be connected with the 3rd electromagnetic valve 20;The first relief valve 12, first is connected respectively by oil circuit in valve block The oil-out of servo valve the 14, second servo valve the 15, first electromagnetic valve the 18, second electromagnetic valve the 19, the 3rd electromagnetic valve 20, goes out the most at last Hydraulic fluid port oil sump tank 1 after reunification.First servo valve 14 is connected with the first knee joint oil cylinder 28 with the first electromagnetic valve 18, the second servo valve 15 are connected with the first hip joint oil cylinder 30 with the second electromagnetic valve 19, realize the control to joint oil cylinder displacement by controlling servo valve System.
Another set of power unit includes that fuel tank 1, breather valve 2, obturating cup the 3, second oil pump the 5, second motor 7, second filter Device the 9, second pressure transducer the 11, second relief valve the 13, the 3rd servo valve the 16, the 4th servo valve the 17, the 4th electromagnetic valve the 21, the 5th Electromagnetic valve the 22, the 6th electromagnetic valve the 23, the 3rd pressure measuring tie-in the 26, the 4th pressure measuring tie-in 27.Wherein second filter the 9, second pressure Sensor the 11, second relief valve 13, the 3rd servo valve 16, the 4th servo valve 17, the 4th electromagnetic valve 21, the 5th electromagnetic valve 22, Six electromagnetic valve the 23, the 3rd pressure measuring tie-in the 26, the 4th pressure measuring tie-ins 27 are all integrated on the second valve block 33.Second oil pump 5 provides Hydraulic oil direct admission valve block, by after the second filter 9 and valve block internal oil passages respectively with the second pressure transducer 11, second Relief valve the 13, the 3rd servo valve the 16, the 4th servo valve 17 is connected with the 6th electromagnetic valve 23;Is connected respectively by oil circuit in valve block Two relief valve the 13, the 3rd servo valve the 16, the 4th servo valve the 17, the 4th electromagnetic valve the 21, the 5th electromagnetic valve the 22, the 6th electromagnetic valves 23 Oil-out, the most at last oil-out oil sump tank 1 after reunification.3rd servo valve 16 and the 4th electromagnetic valve 21 and the second knee joint oil cylinder 29 Being connected, the 4th servo valve 17 is connected with the second hip joint oil cylinder 31 with the 5th electromagnetic valve 22, realizes pass by controlling servo valve The control of fuel-economizing cylinder displacement.
First oil pump 4 and the second oil pump 5 are embedded oil pump, are arranged on fuel tank 1 internal, have more preferable oil suction effect Really, noise during operation of oil pump can be reduced simultaneously.Fuel tank 1 structure is closed, it is ensured that fuel tank is being stood, squats down, crawled During the actions such as crawl, fluid will not leak;Fuel tank 1 top is provided with breather valve 2 and obturating cup 3, when fuel tank inside and outside pressure reduction is more than one During definite value, breather valve 2 is opened, and tank internal pressure keeps consistent with atmospheric pressure, the most both can guarantee that the oil absorbing effect of oil pump, again When tank internal pressure can be prevented excessive, oil pump is damaged;Obturating cup 3, by completely separated to fuel tank internal and breather valve 2, works as breathing When valve 2 work is opened, it is ensured that fuel tank inner fluid will not leak.
First relief valve 12 and the second relief valve 13 define the maximum system in two set hydraulic servo power unit oil circuits Pressure, it is ensured that the personal safety of wearer and equipment safety;First pressure transducer 10 and the second pressure transducer 11 can be real Time monitoring system and the pressure of joint oil cylinder, it is ensured that the effectiveness of control;3rd electromagnetic valve 20 and the 6th electromagnetic valve 23 are two Position two-way electromagnetic valve, has the function of system quick relief.At the first servo valve, the second servo valve, the 3rd servo valve and the 4th First pressure measuring tie-in the 24, second pressure measuring tie-in 25, the 3rd pressure measuring tie-in 26 and it is respectively arranged with at the control port of servo valve Four pressure measuring tie-ins 27, by pressure measurement flexible pipe and Pressure gauge, can detect the pressure of control port;First electromagnetic valve 18 with First knee joint oil cylinder 28 is connected, and the second electromagnetic valve 19 is connected with the first hip joint oil cylinder 30, the 4th electromagnetic valve 21 and the second knee joint Joint oil cylinder 29 is connected, and the 5th electromagnetic valve 22 is connected with the second hip joint oil cylinder 31, when opening first electromagnetic valve the 18, second electromagnetism When valve the 19, the 4th electromagnetic valve 21 and five electromagnetic valves 22, first knee joint oil cylinder the 28, first hip joint oil cylinder the 30, second knee joint closes Fuel-economizing cylinder 29 and the second hip joint oil cylinder 31 directly communicate with oil return line, and the most all oil cylinders are in servo-actuated state, it is simple to dress And walking.
First motor 6 and the second motor 7 are DC brushless motor, drive the first oil pump 4 and the second oil pump 5 respectively.Outward During skeleton robot ambulation, the first knee joint oil cylinder 28 and the second knee joint oil cylinder 29 the most alternately bear load pressure, now The flow that two oil cylinders need is also in alternate, and the first hip joint oil cylinder 30 and the second hip joint oil cylinder 31 the most alternately bear Load pressure.This feature when walking according to exoskeleton robot, the two independent hydraulically controlled servo power lists of set that the present invention includes Unit can be according to the change of loading condition, by regulating the first motor 6 and rotating speed of the second motor 7, provides not for joint oil cylinder Same system pressure and flow, it is to avoid system is constantly in high pressure, the duty of big flow, thus reduces to greatest extent System heat generation, improves running efficiency of system.
The above is only the preferred embodiment of the present invention, and professional and technical personnel in the field can be on the basis of the present invention On carry out various change and deformation.Therefore, the present invention is not intended to be limited to the embodiments shown herein, all in the present invention Spirit and principle within any modification, equivalent substitution and improvement etc. made, should be included in protection scope of the present invention it In.

Claims (8)

1. an exoskeleton robot micro hydraulic servosystem, including fuel tank, hydraulic servo power unit and joint oil cylinder, It is characterized in that,
Described joint oil cylinder is some,
Described hydraulic servo power unit is some and a shared fuel tank and each hydraulic servo power unit be provided with an oil pump and with The motor of oil pump coupling;
The output of this oil pump controls to be positioned at the one or more joints oil cylinder on human body one or the upper arm and each oil pump control difference is closed Fuel-economizing cylinder;
Each motor controls what corresponding oil pump flow was born for the joint oil cylinder mating this oil pump control by regulation rotating speed Load pressure.
System the most according to claim 1, it is characterised in that each hydraulic servo power unit includes oil pump, motor, mistake Filter, front end electromagnetic valve, relief valve, also include and the joint oil cylinder quantity Matching of oil pump control in hydraulic servo power unit Joint electromagnetic valve, servo valve, pressure measuring tie-in;Wherein
Oil pump enters oilhole and is connected with fuel tank oil outlet, and motor is connected with oil pump, and filter enters oilhole and is connected with oil pump oil outlet, mistake Filter oil outlet is connected with front end electromagnetic valve input, relief valve input, pressure transducer and servo valve input respectively, front End electromagnetic valve outfan is connected with mailbox return port, and relief valve outfan inputs with joint electromagnetic valve input and servo valve respectively End connects, and joint electromagnetic valve outfan is connected with pressure measuring tie-in, and servo valve outfan is connected with joint oil cylinder.
System the most according to claim 1 and 2, it is characterised in that described top of oil-tank arranges breather valve and obturating cup;Its In
Breather valve pressure in fuel tank is opened when exceeding atmospheric pressure and closes when mailbox inside and outside differential pressure is zero,
Obturating cup is arranged between breather valve and fuel tank.
System the most according to claim 1 and 2, it is characterised in that described oil pump is arranged in fuel tank.
System the most according to claim 2, it is characterised in that hydraulic servo power unit oil circuit is set in described relief valve Maximum pressure, if oil circuit pressure is more than maximum pressure, then work reduction oil circuit pressure.
System the most according to claim 2, it is characterised in that described pressure measuring tie-in connects external pressure table.
System the most according to claim 2, it is characterised in that described electromagnetic valve is two-position two-way solenoid valve.
System the most according to claim 1 and 2, it is characterised in that described motor is DC brushless motor.
CN201610777958.0A 2016-08-31 2016-08-31 A kind of exoskeleton robot micro hydraulic servosystem Pending CN106239481A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107618022A (en) * 2017-09-14 2018-01-23 西南交通大学 Volume speed regulating hydraulic system and power-assisted lower limb exoskeleton
CN107639626A (en) * 2017-09-14 2018-01-30 西南交通大学 Throttle grverning hydraulic system and power-assisted lower limb exoskeleton
CN108569091A (en) * 2017-03-13 2018-09-25 科维(营口)工业有限公司 A kind of mechanical arm control gas circuit and tire changer
CN109764029A (en) * 2019-03-14 2019-05-17 布法罗机器人科技(成都)有限公司 A kind of miniature single power source hydraulic system applied to exoskeleton robot
CN109779986A (en) * 2019-03-14 2019-05-21 布法罗机器人科技(成都)有限公司 A kind of miniature only power source servo hydraulic system applied to exoskeleton robot
CN112975908A (en) * 2021-02-19 2021-06-18 华南理工大学 Hydraulic system and hydraulic driving method applied to load-mobile exoskeleton

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CN101175456A (en) * 2005-04-13 2008-05-07 加利福尼亚大学董事会 Semi-powered lower extremity exoskeleton
CN202147278U (en) * 2011-05-30 2012-02-22 山东理工大学 Fire-fighting robot arm hydraulic circuit system
CN103612257A (en) * 2013-12-02 2014-03-05 电子科技大学 External skeleton pump and valve combined control device and method
CN105686930A (en) * 2016-03-01 2016-06-22 芜湖安普机器人产业技术研究院有限公司 Connecting rod and joint integrated hydraulic driving external skeleton

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CN2043873U (en) * 1988-11-21 1989-09-06 张红军 One-sided mobile artificial legs
US5282460A (en) * 1992-01-06 1994-02-01 Joyce Ann Boldt Three axis mechanical joint for a power assist device
US20040102723A1 (en) * 2002-11-25 2004-05-27 Horst Robert W. Active muscle assistance device and method
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108569091A (en) * 2017-03-13 2018-09-25 科维(营口)工业有限公司 A kind of mechanical arm control gas circuit and tire changer
CN108569091B (en) * 2017-03-13 2020-05-29 科维(营口)工业有限公司 Mechanical arm control gas circuit and tire dismounting machine
CN107618022A (en) * 2017-09-14 2018-01-23 西南交通大学 Volume speed regulating hydraulic system and power-assisted lower limb exoskeleton
CN107639626A (en) * 2017-09-14 2018-01-30 西南交通大学 Throttle grverning hydraulic system and power-assisted lower limb exoskeleton
CN107639626B (en) * 2017-09-14 2024-04-23 西南交通大学 Throttling speed-regulating hydraulic system and power-assisted lower limb exoskeleton
CN107618022B (en) * 2017-09-14 2024-04-26 西南交通大学 Volume speed-regulating hydraulic system and power-assisted lower limb exoskeleton
CN109764029A (en) * 2019-03-14 2019-05-17 布法罗机器人科技(成都)有限公司 A kind of miniature single power source hydraulic system applied to exoskeleton robot
CN109779986A (en) * 2019-03-14 2019-05-21 布法罗机器人科技(成都)有限公司 A kind of miniature only power source servo hydraulic system applied to exoskeleton robot
CN112975908A (en) * 2021-02-19 2021-06-18 华南理工大学 Hydraulic system and hydraulic driving method applied to load-mobile exoskeleton
CN112975908B (en) * 2021-02-19 2024-09-24 华南理工大学 Hydraulic system applied to load-driven exoskeleton and hydraulic driving method

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Application publication date: 20161221