CN101637912A - Joint of hyper-redundant robot - Google Patents

Joint of hyper-redundant robot Download PDF

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Publication number
CN101637912A
CN101637912A CN200910060120A CN200910060120A CN101637912A CN 101637912 A CN101637912 A CN 101637912A CN 200910060120 A CN200910060120 A CN 200910060120A CN 200910060120 A CN200910060120 A CN 200910060120A CN 101637912 A CN101637912 A CN 101637912A
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CN
China
Prior art keywords
joint
universal joint
gear
hyper
transmission
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Pending
Application number
CN200910060120A
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Chinese (zh)
Inventor
陈礼顺
李立
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Southwest Jiaotong University
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Southwest Jiaotong University
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Publication date
Application filed by Southwest Jiaotong University filed Critical Southwest Jiaotong University
Priority to CN200910060120A priority Critical patent/CN101637912A/en
Publication of CN101637912A publication Critical patent/CN101637912A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a joint of a hyper-redundant robot. A gear transmission pair composite unit is arranged in a support in the following manner: wheel shafts 2 and 3 which are mutually orthogonalof a universal joint pin type gear 1 are coupled with tongue parts 4 and 5 of two joint supports; two pinions 6 and 7 are arranged on the two joint supports respectively and meshed with the universaljoint pin type gear 1; and driving motors 8 and 9 are arranged on the two pinions. By adopting the structure in the light of universal joint connection, the invention can lead the universal joint pintype gear into a universal joint in a transmission manner; and by substituting the conventional hinging transmission in the universal joints for the gear transmission and maintaining the flexibilityof space motion of the conventional universal joint at the same time, the invention has the advantages of small shaft distance, simple and compact structure, high rigidity, large driving moment, stable motion and the like.

Description

A kind of joint of hyper-redundant robot
Affiliated technical field
The utility model relates to the Robotics field, especially relates to a kind of joint of hyper-redundant robot.
Background technology
Hyper-redundant robot (Hyper-Redundant Robots) is meant the robot of number of degrees of freedom, far more than the required by task least degree of freedom that fulfils assignment, have good environmental suitability and compatibility, fault-tolerance and robustness, bright application prospect is arranged at complex environments such as interplanetary probe, military surveillance and rescue and relief works.Hyper-redundant robot generally is in series by a plurality of identical joint modules, and therefore, the design of joint module and the overall performance of hyper-redundant robot are closely related.At present, mostly there are problems such as complex structure, difficult manufacturing, difficult control in joint of hyper-redundant robot.
Summary of the invention
For deficiencies such as the complex structure that overcomes existing joint of hyper-redundant robot existence, difficult manufacturing, difficult controls, the joint that the purpose of this invention is to provide a kind of space hyper-redundant robot has advantages such as distance between axles is little, simple and compact for structure, good rigidly, driving moment is big, motion is steady, structure decoupling, control is simple, processing performance is good.The objective of the invention is to realize by following means.
A kind of hyper-redundant machine is gone into has following gear driving pair assembly in the support of joint: connect mutually with the protruding tongue 4 and 5 of two knuckle supports respectively behind the mutually orthogonal wheel shaft 2 and 3 of a Cardon universal joint gear 1; Two pinion 6 and 7 be placed on two knuckle supports and with 1 engagement of Cardon universal joint gear; Described two pinion is provided with drive motors 8 and 9.
Adopt structure of the present invention, use for reference the universal joint type of attachment, the Cardon universal joint gear drive is incorporated in the cross-axle universal shaft joint.When keeping traditional gimbal suspension spatial movement flexibility,, thereby have advantages such as distance between axles is little, simple and compact for structure, good rigidly, driving moment is big, motion is steady owing to the hinge transmission of having adopted in the alternative traditional gimbal suspension of gear drive.
Because the kinetics equation group of hyper-redundant robot is highly non-linear coupling, the joint is if can realize kinematic decoupling, and then kinetics equation and Control System Design will greatly be simplified.Studies show that of pertinent literature, joint realize that the key of mobile decoupling is a structure decoupling, and the condition of structure decoupling is: guarantee that 1) each axis of rotation intersects at a point; 2) length that guarantees bar does not change and translation does not take place the centre of gyration of bar.Two gyroaxises in joint of the present invention are vertically intersected on a bit, and the constant and centre of gyration O of the distance that P point in target location is ordered to centre of gyration O in motion process does not do translation, and therefore novel joint is a structure decoupling.
Description of drawings is as follows:
Fig. 1 is a partial sectional view of the present invention.
Fig. 2 is a Cardon universal joint gear structure among the present invention.
Fig. 3 is the invention kinematic sketch.
Fig. 4 a and Fig. 4 b are side-sway motion schematic diagrames of the present invention.
Fig. 5 a and Fig. 5 b are elevating movement schematic diagrames of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing structure of the present invention is described in further detail.
Can find out to have following gear driving pair assembly in the joint of hyper-redundant robot support in conjunction with Fig. 1, Fig. 2: connect mutually with the protruding tongue 4 and 5 of two knuckle supports respectively behind the mutually orthogonal wheel shaft 2 and 3 of Cardon universal joint gear 1.Two pinion 6 and 7 is placed in and is meshed on two knuckle supports and with two semicircle teeth fans of Cardon universal joint gear 1.Described two pinion is provided with drive motors 8 and 9.When motor 8 drives pinion 6 rotations, drive Cardon universal joint gear 1 and support 10 rotations then, the joint produces the side-sway motion; When motor 9 drives pinion 7 rotations, drive Cardon universal joint gear 1 and support 11 rotations then, the joint produces elevating movement; When two motors drove simultaneously, the joint produced compound motion.
Fig. 3 has expressed the invention movement relation, and two gyroaxises in joint of the present invention are vertically intersected on a bit, and the constant and centre of gyration O of the distance that P point in target location is ordered to centre of gyration O in motion process does not do translation, and therefore novel joint is a structure decoupling.
Fig. 4 a and Fig. 4 b have expressed two states that joint of robot of the present invention is finished the side-sway motion.
Fig. 5 a and Fig. 5 b have expressed two states that joint of robot of the present invention is finished elevating movement.

Claims (1)

1, a kind of joint of hyper-redundant robot is characterized in that, has following gear driving pair assembly in the support: connect mutually with the protruding tongue 4 and 5 of two knuckle supports respectively behind the mutually orthogonal wheel shaft 2 and 3 of a Cardon universal joint gear 1; Two pinion 6 and 7 be placed on two knuckle supports and with 1 engagement of Cardon universal joint gear; Described two pinion is provided with drive motors 8 and 9.
CN200910060120A 2009-07-27 2009-07-27 Joint of hyper-redundant robot Pending CN101637912A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910060120A CN101637912A (en) 2009-07-27 2009-07-27 Joint of hyper-redundant robot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910060120A CN101637912A (en) 2009-07-27 2009-07-27 Joint of hyper-redundant robot

Publications (1)

Publication Number Publication Date
CN101637912A true CN101637912A (en) 2010-02-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN200910060120A Pending CN101637912A (en) 2009-07-27 2009-07-27 Joint of hyper-redundant robot

Country Status (1)

Country Link
CN (1) CN101637912A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102001094A (en) * 2010-10-21 2011-04-06 北京航空航天大学 Reliable joint control-driven component and control method thereof
CN102452078A (en) * 2010-11-01 2012-05-16 鸿富锦精密工业(深圳)有限公司 Robot joint
TWI400150B (en) * 2010-10-29 2013-07-01 Hon Hai Prec Ind Co Ltd Robotic joint
CN103751924A (en) * 2014-01-10 2014-04-30 湘潭大学 Multi-jointed easy-to-disassemble easy-to-reconstruct search and rescue pole
CN106217409A (en) * 2016-07-29 2016-12-14 上海新世纪机器人有限公司 A kind of robot head
CN107309902A (en) * 2017-08-21 2017-11-03 福建龙溪轴承(集团)股份有限公司 Cross axle articulation structure
CN108818596A (en) * 2018-09-28 2018-11-16 合肥合茂电子科技有限公司 A kind of novel robot wrist structure

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102001094A (en) * 2010-10-21 2011-04-06 北京航空航天大学 Reliable joint control-driven component and control method thereof
TWI400150B (en) * 2010-10-29 2013-07-01 Hon Hai Prec Ind Co Ltd Robotic joint
CN102452078A (en) * 2010-11-01 2012-05-16 鸿富锦精密工业(深圳)有限公司 Robot joint
CN102452078B (en) * 2010-11-01 2014-04-23 鸿富锦精密工业(深圳)有限公司 Robot joint
CN103751924A (en) * 2014-01-10 2014-04-30 湘潭大学 Multi-jointed easy-to-disassemble easy-to-reconstruct search and rescue pole
CN106217409A (en) * 2016-07-29 2016-12-14 上海新世纪机器人有限公司 A kind of robot head
CN107309902A (en) * 2017-08-21 2017-11-03 福建龙溪轴承(集团)股份有限公司 Cross axle articulation structure
CN108818596A (en) * 2018-09-28 2018-11-16 合肥合茂电子科技有限公司 A kind of novel robot wrist structure

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Open date: 20100203