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CN106609521A - Variable-freedom-degree multi-connection-rod mechanism driven by servo motor - Google Patents

Variable-freedom-degree multi-connection-rod mechanism driven by servo motor Download PDF

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Publication number
CN106609521A
CN106609521A CN201611078765.2A CN201611078765A CN106609521A CN 106609521 A CN106609521 A CN 106609521A CN 201611078765 A CN201611078765 A CN 201611078765A CN 106609521 A CN106609521 A CN 106609521A
Authority
CN
China
Prior art keywords
connecting rod
locking device
rod
connection
freedom
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201611078765.2A
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Chinese (zh)
Inventor
不公告发明人
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangxi University
Original Assignee
Guangxi University
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 Guangxi University filed Critical Guangxi University
Priority to CN201611078765.2A priority Critical patent/CN106609521A/en
Publication of CN106609521A publication Critical patent/CN106609521A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/301Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom with more than two arms (boom included), e.g. two-part boom with additional dipper-arm
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36Component parts
    • E02F3/40Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36Component parts
    • E02F3/42Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/425Drive systems for dipper-arms, backhoes or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

A variable-freedom-degree multi-connection-rod mechanism driven by a servo motor is composed of a base 1, a driving rod 13, a first connection rod 15, a first connection piece 5, a fourth connection rod 4, a big arm 2, a wrist connection rod 6, a second connection rod 22, a third connection rod 26, a servo drive device, a first locking device 23 and a second locking device 24. The big arm 2 is connected to the base through a first rotation pair 10. The first locking device 23 and the second locking device 24 are installed on the seventh rotation pair 16 and the tenth rotation pair 19 correspondingly. The servo drive device comprises the first servo motor. The first servo motor is connected with the driving rod 13 so as to drive the driving rod 13 to rotate. The first locking device 23 and the second locking device 24 conduct locking in an electromagnetic manner. According to the variable-freedom-degree multi-connection-rod mechanism driven by the servo motor, a hydraulic mechanism is replaced by the connection rod transmission mechanism, and the defects that the hydraulic mechanism is prone to leaking oil, complicated in mechanism and the like are overcome. Because the locking devices are arranged on the rotation pairs, the variable-freedom-degree multi-connection-rod mechanism driven by the servo motor is suitable for different working conditions, and the number of the adopted motor is smaller than the number of freedom degrees of the mechanism.

Description

A kind of employing servomotor drive can variable freedom multi-connecting-rod mechanism
Technical field
The present invention relates to mechanical field, particularly a kind of employing servomotor drive can variable freedom multi-connecting-rod mechanism.
Background technology
Over the years, because the personnel of labour market are in short supply, human cost rises year by year, promotes cane catching machine in Caulis Sacchari sinensis Extensive application in harvesting processing operation.Cane catching machine has mechanical type and fluid pressure type two types, and the mechanical arm of current cane catching machine is big Majority is hydraulic-driven, there is problems with as the medium of transmission power using hydraulic oil due to hydraulic drive:Its startability Poor, easily because producing leakage after inner member abrasion, and the hydraulic oil for leaking pollutes the environment, and affects sugarcane raw material Quality;Hydraulic oil temperature influence is larger, and aggregate efficiency is relatively low, there is noise and vibration sometimes.It sometimes appear that overheated, powerless in work Etc. phenomenon;Hydraulic Elements requirement on machining accuracy is high, and matching requirements are strict, and manufacture is more difficult, and maintenance in use requires skill Art is higher, and difficulty is larger.With the increase of cane catching machine function, its hydraulic system becomes increasingly complex, and breaks down more using unexpected Property, disguise.Mechanical type cane catching machine be using mechanical transmissioning piece realize grab sugarcane action, using it is sturdy and durable the advantages of, but pass The single-degree-of-freedom mechanical type cane catching machine of system can not complete the action of complexity, and range of application is extremely limited, mechanical type controllable mechanism electricity Dynamic cane catching machine, with linkage hydraulic drive is instead of, and when driving lever is driven by servomotor, easily realizes automatization, number Controlization is controlled, and solves some shortcomings of hydraulic system presence, but there is needs outfit and linkage degree of freedom equivalent amount Controlled motor being controlled big and high cost the problem of mechanism's weight, movement inertia that complex structure is brought.
Variable Freedom Mechanism is by the functional requirement that is combined into new topological structure to adapt to different phase.Can apply at present It is also little in actual Variable Freedom Mechanism, had not seen the Variable Freedom Mechanism for being applied to cane catching machine.
The content of the invention
It is an object of the invention to provide a kind of employing servomotor for cane catching machine drive can variable freedom more connect Linkage, overcomes the shortcomings of fluid pressure type cane catching machine hydraulic system element required precision height, complex structure, easy oil leakage, overcomes open chain The motor of structure is required for being arranged on the shortcoming of joint position, and the quantity of controllable drive motor is connected less than cane catching machine The degree of freedom of linkage, overcomes the electronic cane catching machine structure of existing machinery formula to need to be equipped with the control with linkage degree of freedom equivalent amount Motor processed simplifies the complexity of structure the shortcoming that is controlled, the weight of reducing mechanism, movement inertia, volume and cost. For achieving the above object, the invention provides a kind of employing servomotor drive can variable freedom multi-connecting-rod mechanism, by base 1st, driving lever 13, first connecting rod 15, the first connector 5, fourth link 4, large arm 2, wrist connecting rod 6, second connecting rod the 22, the 3rd connect Bar 26, servo drive, the first locking device 23 and the second locking device 24 are constituted;The large arm 2 is rotated by first Secondary 10 are connected on base, and the other end of large arm 2 rotates secondary 8 and is connected with wrist connecting rod 6 by the 3rd;The driving lever 13 passes through 5th rotates secondary 12 is connected with base 1, and the other end rotates secondary 14 and is connected with first connecting rod 15 by the 6th, and first connecting rod 15 passes through 7th rotates secondary 16 is connected with the first connector 5;First connector 5 is connected by eighth-turn dynamic secondary 17 with second connecting rod 22 Connect, the other end of second connecting rod 22 rotates secondary 7 and is connected with wrist connecting rod 6 by the 9th;The fourth link 4 is rotated by the 13rd Secondary 20 are connected with base 1, and one end rotates secondary 18 and is connected with the first connector 5 by the tenth, and middle part rotates by the 11st Secondary 19 are connected with third connecting rod 26, and the other end of third connecting rod 26 is connected by rotating secondary 25 with large arm 2;First locking The locking device 24 of device 23 and second is separately mounted to the 7th rotation the secondary 16 and the 11st and rotates on secondary 19, suitable according to different operating modes When lock;Servo drive includes the first servomotor, is connected to drive it to rotate with driving lever 13;First locking device 23 Locked using electromagnetic mode with the second locking device 24.
When being applied to grab sugarcane operation by two degrees of freedom closed chain hybrid-driven linkage mechanism of the present invention, it is only necessary to the bottom of by Seat 1 is coupled together with rubber-tyred or crawler type walking mechanism, and wrist connecting rod 6 is coupled together with wrist 27, paw 28.
The present invention adopts controllable many bar closed chain mechanisms, and the motor for overcoming open-chain structure is required for being arranged on joint position The shortcoming put, improves the stationarity and reliability of arm operation, and without cumulative error, precision is higher;Compact conformation, rigidity is high, Large carrying capacity, inertia are low, dynamic property is good, arm motion track flexible and diverse.Install locking device additional on linkage, And allow it to be locked according to the different operating modes of mechanism and loosen specific rotation pair, the degree of freedom of mechanism is reduced in good time, realize In the case where expected requirement is completed, the quantity of the controllable drive motor for using is less than the degree of freedom of cane catching machine linkage, profit Two degrees of freedom is capable of achieving with a driving lever and grabs sugarcane operation, overcome existing cane catching machine to need outfit same with linkage degree of freedom The shortcoming being controlled etc. the controlled motor of quantity, simplifies the complexity of structure, the weight of reducing mechanism, movement inertia, Volume and cost, increased the controllability and stability of mechanism, improve work efficiency.Also overcome fluid pressure type cane catching machine simultaneously Hydraulic system element required precision height, complex structure, easy oil leakage, poor reliability, the low shortcoming of transmission efficiency.
Description of the drawings
Fig. 1 be a kind of employing servomotor of the present invention drive can variable freedom multi-connecting-rod mechanism structural representation Figure.
Specific embodiment
A kind of employing servomotor drive can variable freedom multi-connecting-rod mechanism, by base 1, driving lever 13, first connecting rod 15th, the first connector 5, fourth link 4, large arm 2, wrist connecting rod 6, second connecting rod 22, third connecting rod 26, servo drive, First locking device 23 and the second locking device 24 are constituted;The base 1 is arranged on removable revolving dial;It is described big Arm 2 rotates secondary 10 and is connected on base by first, and the other end of large arm 2 rotates secondary 8 and is connected with wrist connecting rod 6 by the 3rd; The driving lever 13 rotates secondary 12 and is connected with base 1 by the 5th, and the other end rotates secondary 14 and connects with first connecting rod 15 by the 6th Connect, first connecting rod 15 rotates secondary 16 and is connected with the first connector 5 by the 7th;First connector 5 is by the dynamic pair of eighth-turn 17 are connected with second connecting rod 22, and the other end of second connecting rod 22 rotates secondary 7 and is connected with wrist connecting rod 6 by the 9th;Described 4th connects Bar 4 rotates secondary 20 and is connected with base 1 by the 13rd, and one end rotates secondary 18 and is connected with the first connector 5 by the tenth, in Portion rotates secondary 19 and is connected with third connecting rod 26 by the 11st, and the other end of third connecting rod 26 is by rotating secondary 25 with the phase of large arm 2 Connection;The locking device 24 of first locking device 23 and second is separately mounted to the 7th rotation the secondary 16 and the 11st and rotates secondary 19 On, locked in good time according to different operating modes;Servo drive includes the first servomotor, is connected to drive its turn with driving lever 13 It is dynamic;First locking device 23 and the second locking device 24 are locked using electromagnetic mode.
By a kind of employing servomotor of the present invention drive can the multi-connecting-rod mechanism of variable freedom be applied to grab sugarcane and make During industry, it is only necessary to couple together base 1 with rubber-tyred or crawler type walking mechanism, wrist connecting rod 6 connects with wrist 27, paw 28 Pick up and.
In each operating mode work, during lifting operating mode, the first locking device 23 and the second locking device 24 are locked, the 7th turn Dynamic secondary 16 and the 11st rotates secondary 19 loses degree of freedom, and now driving lever 13 is connected by first connecting rod 15, third connecting rod 26, first Fitting 5, the collective effect of fourth link 4, large arm 2, second connecting rod 22 lifts on wrist connecting rod 6.The independent pitching of wrist connecting rod 6 During operating mode, the first locking device 23 is opened, and the 7th rotates secondary 16 degree of affranchising, and the second locking device 24 is locked, the 11st turn Dynamic secondary 19 lose degree of freedom, and now driving lever 13 is by the presence of first connecting rod 15, the first connector 5 and second connecting rod 22 Make the pitching of wrist connecting rod 6.First locking device 7 and the second locking device 29 select respectively tight lock according to different working conditions Or open, complete jointly large arm 2 lift, the motion such as the pitching of wrist connecting rod 6 and wrist 27, that realizes paw 28 grabs sugarcane operation, First locking device 23 and the second locking device 24 can be locked using electromagnetic mode, and control is easily realized.

Claims (1)

1. a kind of employing servomotor drive can variable freedom multi-connecting-rod mechanism, it is characterised in that by base 1, driving lever 13, First connecting rod 15, the first connector 5, fourth link 4, large arm 2, wrist connecting rod 6, second connecting rod 22, third connecting rod 26, servo drive Dynamic device, the first locking device 23 and the second locking device 24 are constituted;The base 1 is arranged on removable revolving dial; The large arm 2 rotates secondary 10 and is connected on base by first, and the other end of large arm 2 rotates secondary 8 with the phase of wrist connecting rod 6 by the 3rd Connection;The driving lever 13 rotates secondary 12 and is connected with base 1 by the 5th, and the other end rotates secondary 14 and first connecting rod by the 6th 15 connections, first connecting rod 15 rotates secondary 16 and is connected with the first connector 5 by the 7th;First connector 5 passes through eighth-turn Dynamic secondary 17 are connected with second connecting rod 22, and the other end of second connecting rod 22 rotates secondary 7 and is connected with wrist connecting rod 6 by the 9th;Described Double leval jib 4 rotates secondary 20 and is connected with base 1 by the 13rd, and one end rotates secondary 18 and is connected with the first connector 5 by the tenth Connect, middle part rotates secondary 19 and is connected with third connecting rod 26 by the 11st, the other end of third connecting rod 26 by rotate pair 25 with it is big Arm 2 is connected;It is secondary 16 and the 11st turns that the locking device 24 of first locking device 23 and second is separately mounted to the 7th rotation On dynamic secondary 19, locked in good time according to different operating modes;Servo drive includes the first servomotor, is connected to drive with driving lever 13 Move its rotation;First locking device 23 and the second locking device 24 are locked using electromagnetic mode.
CN201611078765.2A 2016-11-30 2016-11-30 Variable-freedom-degree multi-connection-rod mechanism driven by servo motor Pending CN106609521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611078765.2A CN106609521A (en) 2016-11-30 2016-11-30 Variable-freedom-degree multi-connection-rod mechanism driven by servo motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611078765.2A CN106609521A (en) 2016-11-30 2016-11-30 Variable-freedom-degree multi-connection-rod mechanism driven by servo motor

Publications (1)

Publication Number Publication Date
CN106609521A true CN106609521A (en) 2017-05-03

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Application Number Title Priority Date Filing Date
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Country Status (1)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003034945A (en) * 2001-07-24 2003-02-07 Hitachi Constr Mach Co Ltd Offset boom tape construction machinery
CN104047310A (en) * 2014-06-27 2014-09-17 广西大学 Multi-connecting-rod loading mechanism with active metamorphic function
CN106609515A (en) * 2016-11-28 2017-05-03 广西大学 Multi-connecting-rod variable-freedom-degree wood grasping machine provided with servo motors for driving
CN106625559A (en) * 2016-11-28 2017-05-10 广西大学 Multi-connecting-rod variable-freedom-degree feed stacking manipulator driven by servo motors
CN106625557A (en) * 2016-11-28 2017-05-10 广西大学 Servo drive multi-rod type variable-freedom-degree mechanical arm for assembly work

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003034945A (en) * 2001-07-24 2003-02-07 Hitachi Constr Mach Co Ltd Offset boom tape construction machinery
CN104047310A (en) * 2014-06-27 2014-09-17 广西大学 Multi-connecting-rod loading mechanism with active metamorphic function
CN106609515A (en) * 2016-11-28 2017-05-03 广西大学 Multi-connecting-rod variable-freedom-degree wood grasping machine provided with servo motors for driving
CN106625559A (en) * 2016-11-28 2017-05-10 广西大学 Multi-connecting-rod variable-freedom-degree feed stacking manipulator driven by servo motors
CN106625557A (en) * 2016-11-28 2017-05-10 广西大学 Servo drive multi-rod type variable-freedom-degree mechanical arm for assembly work

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Application publication date: 20170503