CN202399265U - Fruit picking mechanical hand - Google Patents

Fruit picking mechanical hand Download PDF

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Publication number
CN202399265U
CN202399265U CN2011205402972U CN201120540297U CN202399265U CN 202399265 U CN202399265 U CN 202399265U CN 2011205402972 U CN2011205402972 U CN 2011205402972U CN 201120540297 U CN201120540297 U CN 201120540297U CN 202399265 U CN202399265 U CN 202399265U
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CN
China
Prior art keywords
fruit
support plate
connecting rod
pull bar
finger
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.)
Expired - Fee Related
Application number
CN2011205402972U
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Chinese (zh)
Inventor
张伏
付三玲
邱兆美
王俊
毛鹏军
徐锐良
丁会芳
李延娜
张钰斌
张猛
胡冰
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Henan University of Science and Technology
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Henan University of Science and Technology
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Filing date
Publication date
Application filed by Henan University of Science and Technology filed Critical Henan University of Science and Technology
Priority to CN2011205402972U priority Critical patent/CN202399265U/en
Application granted granted Critical
Publication of CN202399265U publication Critical patent/CN202399265U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a fruit picking mechanical hand, which comprises a hand portion and an arm, wherein the arm is a three-connecting rod spherical coordinate type arm, the hand portion comprises a support plate which is arranged on a wrist, fingers and connecting rods of the fingers are respectively hinged on two sides of the front end face of the support plate, and a pulling rod which pulls the fingers to open and close is assembled on the support plate in a guiding and moving mode through a pull rod driving mechanism arranged on the support plate. The fruit picking mechanical hand is characterized in that circular clamping plates with notches which are opposite to each other are respectively arranged on inner sides of front portions of the fingers. According to the fruit picking mechanical hand, the circular clamping plates are arranged at the front end, and the arc shape of the circular clamping plates is matched with and attached to the external shape of fruit, so that the stressed area of the periphery of the fruit is large, the force is uniform and the problem that in the prior art, the fruit is bruised due to large forces in local areas of the fruit is avoided.

Description

Fruit picking mechanical arm
Technical field
The utility model belongs to agricultural mechanical field, relates to plucking fruit with the manipulator on the automation, and relating in particular to and plucking profile is circular arc or circular fruit.
Background technology
At present, agricultural robot is mainly used in fields such as transplanting, grafting, spray medicine, harvesting, fruit classification, and the picking fruit operation is a link the most consuming time in the fruit production chain, that require great effort most; Therefore in the picking fruit operation, adopt robot manipulating task need realize picking fruit machine people's automation and intellectuality, research and development picking fruit intelligent robot for the liberation labour, raise labour productivity, reduce production costs, guarantee the fresh fruit quality, and all there is important meaning the aspects such as real-time requirement that satisfy plant growth; In picking fruit machine robot system, manipulator design is a difficult point, existing fruit picking mechanical arm such as information technology periodical; 2011 the 2nd phases, article is numbered 1009-2552 (2011) 02-0072-03, and name is called " design of six degree of freedom fruit picking mechanical arm control system "; Periodical content discloses a kind of manipulator, comprises pedestal, arm, wrist, four parts of hand, and described arm is three connecting rod spherical coordinates formula arms; Pedestal is provided with and drives the mechanism that rolls over that rolls over; The connecting rod of its arm is provided with the arms swing device that is used to drive two connecting rod swings on the arm, and the wrist place is provided with and is used to drive the wrist drive unit that wrist is rotated, and hand comprises finger part and drives the driving mechanism of finger folding; But owing to consider biological nature, mechanical property and the physicochemical property of fruit; Make that the manipulator versatility of this structure is poor, when the finger of this structure has the fruit of circular arc in clamping, because the fruit lifting surface area is little; The power that receives is big; Easily fruit is crushed, fruit only need one be dragged fruit can fruit to be separated with stalk gently laterally during with the segregative fruit of stalk; Drag when getting fruit at the finger of this structure, easily pericarp is torn wound.
The utility model content
The purpose of the utility model is to provide and is difficult for damaging the fruit picking mechanical arm of fruit when plucking circular arc or circular fruit.
For realizing above-mentioned purpose; The utility model adopts following technical scheme: fruit picking mechanical arm; Comprise hand, arm; Described arm is three connecting rod spherical coordinates formula arms, and hand comprises the support plate that is used to be arranged on the wrist, and the both sides of the front end face of support plate are hinged with finger and connecting rod thereof respectively; Move the pull bar that is equipped with the folding of pulling finger through the pull bar driving mechanism guiding that is provided with on it on the support plate, the inboard of the front end of described finger is respectively arranged with recess towards relative circular arc clamping plate.
Be adhesive with padded coaming on the madial wall of described circular arc clamping plate.
Described finger connecting rod and finger split and settings that be articulated and connected, the lower end of pointing connecting rod is hinged on the support plate, is respectively arranged with the pull bar connecting rod between the finger of described pull bar and both sides, and the two ends of pull bar connecting rod are respectively with pull bar and point hinged.
The driving mechanism of described pull bar comprises the tooth bar in the groove that is provided with on the support plate that is slidedly assemblied in that is fixedly connected with said pull bar, and tooth bar is provided with the gear that is engaged with, and support plate is provided with the hand reducing motor of the band auto-lock function of driven wheel rotation.
The fruit picking mechanical arm of the utility model; Because the circular arc clamping plate that leading portion is provided with; When the fingers fruit, the arcuate shape of circular arc clamping plate and the external appearance matching of fruit are fitted, and make the periphery lifting surface area of fruit big; And stressed evenly, can not occur because of the prior art owing to the fruit local pressure fruit of damaging greatly.
Further, be adhesive with padded coaming, further cushioned the power of fruit periphery.
Further, finger is articulated and connected with the split of finger connecting rod, can win fruit and the segregative fruit of stalk easily.
Further, described pull bar drives through gear & rack structure, and is simple in structure.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the stereogram of Fig. 1.
The specific embodiment
The embodiment of fruit picking mechanical arm; Shown in Fig. 1-3; Comprise pedestal 1, arm 2, wrist 3,4 four parts of hand, hand 4 comprises the support plate 9 that is arranged on the wrist 3, and the both sides of the front end face of support plate 9 are hinged with finger connecting rod 5 respectively; The upper end of finger connecting rod 5 is hinged with finger 40 respectively; The inboard of the front end of finger 40 is respectively arranged with the circular arc clamping plate 41 of recess towards the inboard, is adhesive with nylon (or rubber) on the madial wall of circular arc clamping plate 41, and the middle part of finger 40 is hinged with pull bar connecting rod 42 respectively; The end of two pull bar connecting rods 42 is hinged with pulling pull bar connecting rod to drive the pull bar 43 of finger 40 foldings; On the front end face of support plate 9 between wherein the position be provided with the pull bar driving mechanism that drive stay 43 moves, the driving mechanism of pull bar comprise with the lower end of pull bar 43 bonding be slidedly assemblied in the tooth bar 8 in the groove that is provided with on the support plate 9, tooth bar 8 is provided with the gear 7 that is engaged with; Support plate 9 is provided with the hand reducing motor 6 of the band auto-lock function of driven wheel 7 rotations; Wrist 3 is provided with and drives the wrist steering wheel 30 that wrist is rotated, and arm 2 is for to be arranged on three connecting rod spherical coordinates formula arms between wrist 3 and the pedestal 1, and it comprises the first connecting rod 24 that is fixedly connected with wrist 3; With the hinged second connecting rod 23 of first connecting rod 24, the third connecting rod 22 hinged with second connecting rod 23; Third connecting rod 22 is provided with and drives second steering wheel 25 of second connecting rod 23 around third connecting rod 22 swings, and second connecting rod 23 is provided with and drives first steering wheel 26 of first connecting rod 24 around second connecting rod 23 swings, and pedestal 1 comprises upper and lower two base plates 11 and 17 that fixedly install through bolt 10; Pedestal 1 is provided with the mechanism that rolls over that drives arm 2 unitary rotation; The described mechanism that rolls over comprises that lower shoe 17 is provided with the reducing motor 16 that has driving gear 14 on the output shaft, is rotatably equipped with driven shaft 15 between the upper and lower bottom plate, and driven shaft 15 is provided with the driven gear 18 with driving gear 15 engaged transmission; The upper end of driven shaft 15 is stretched out upper plate and is fixedly connected with the third connecting rod 22 of arm, and the angle that described first and second steering wheel and wrist steering wheel and reducing motor rotate is controlled by pwm signal.
The above embodiments in use, reducing motor 16 starts, driven gear 14 rotates; Gear 14 and gear 19 engaged transmission, axle 15 rotates under gear 19 drives, and then drives arm 2 unitary rotation; Second steering wheel 25 starts the motor shaft swing of drivening rod 23 along steering wheel 25 under the control signal effect, first steering wheel 26 starts the motor shaft swing of drivening rod 24 along steering wheel 26 in the control signal effect, and steering wheel 30 starts the motor shaft rotation of drive wrist 3 along steering wheel 30 under the control signal effect; The position of adjustment tomato manipulator, to reach the correct position that circular arc clamping plate 41 grasp fruit, gear 7 drives moving of tooth bar 8 under the hand reducing motor 6 of band self-locking device rotates; Tooth bar 8 drives pull bar 43 and moves up, through the mobile drive pull bar connecting rod motion of pull bar 43, to realize opening of finger 40; When circular arc clamping plate 41 are put into the both sides of fruit, the counter-rotating of hand reducing motor, driven wheel drives tooth bar and moves down; To grasp fruit, fruit is when being hung on to by finger, and wrist steering wheel 30 rotates 360 ° under the effect of control signal; Fruit and stalk are broken away from, driving hand by above-mentioned behaviour, make hand reach the container of assigned address or Sheng fruit through first and second steering wheel and wrist steering wheel; Hand repeats above-mentioned finger and opens action, and fruit is put down the extracting that finishes single fruit and puts down process, the repetition of process successively; Can accomplish the work of winning of whole mellow fruits, according to actual needs, the length that can increase tooth bar 8 increases the opening angle of pawl 4.
In other embodiment, described finger and connecting rod thereof can also one-body molded bending settings.
In other embodiment, described pull bar driving mechanism can also be the leading screw by driven by motor, and pull bar is fixedly installed on the sleeve with the threads of lead screw transmission.

Claims (4)

1. fruit picking mechanical arm; Comprise hand, arm, described arm is three connecting rod spherical coordinates formula arms, and hand comprises the support plate that is used to be arranged on the wrist; The both sides of the front end face of support plate are hinged with finger and connecting rod thereof respectively; Move the pull bar that is equipped with the folding of pulling finger through the pull bar driving mechanism guiding that is provided with on it on the support plate, it is characterized in that the inboard of the front end of described finger is respectively arranged with recess towards relative circular arc clamping plate.
2. fruit picking mechanical arm according to claim 1 is characterized in that, is adhesive with padded coaming on the madial wall of described circular arc clamping plate.
3. fruit picking mechanical arm according to claim 1; It is characterized in that; Described finger connecting rod and the finger split and the setting that is articulated and connected; The lower end of finger connecting rod is hinged on the support plate, is respectively arranged with the pull bar connecting rod between the finger of described pull bar and both sides, and the two ends of pull bar connecting rod are respectively with pull bar and point hinged.
4. fruit picking mechanical arm according to claim 1; It is characterized in that; The driving mechanism of described pull bar comprises the tooth bar in the groove that is provided with on the support plate that is slidedly assemblied in that is fixedly connected with said pull bar; Tooth bar is provided with the gear that is engaged with, and support plate is provided with the hand reducing motor of the band auto-lock function of driven wheel rotation.
CN2011205402972U 2011-12-21 2011-12-21 Fruit picking mechanical hand Expired - Fee Related CN202399265U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205402972U CN202399265U (en) 2011-12-21 2011-12-21 Fruit picking mechanical hand

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205402972U CN202399265U (en) 2011-12-21 2011-12-21 Fruit picking mechanical hand

Publications (1)

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CN202399265U true CN202399265U (en) 2012-08-29

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102672712A (en) * 2011-12-21 2012-09-19 河南科技大学 Fruit picking manipulator
CN105027828A (en) * 2015-08-27 2015-11-11 华东交通大学 Mechanical arm applied to agricultural picking
CN106363618A (en) * 2016-08-29 2017-02-01 河海大学常州校区 Picking mechanical hand
CN108076821A (en) * 2017-12-13 2018-05-29 谷新运 A kind of latex three refers to inverted pendulum string pendulum dynamic formula apple-picking end effector
CN108353672A (en) * 2018-03-08 2018-08-03 南京太司德智能科技有限公司 A kind of screen of trees cleaning air-robot of rotatable tool plane
CN108432450A (en) * 2018-04-18 2018-08-24 浙江理工大学 A kind of rotating cutting type broccoli recovering device
CN108496564A (en) * 2018-05-02 2018-09-07 昆明理工大学 A kind of fruit picking handgrip
CN108496554A (en) * 2018-05-02 2018-09-07 昆明理工大学 A kind of suspension type fruits picking mechanical arm
CN108551879A (en) * 2018-06-27 2018-09-21 洋县庆安农业产业发展有限公司 The Kiwi berry picker of preventing damage fruit
CN108718683A (en) * 2018-06-05 2018-11-02 浙江工贸职业技术学院 A kind of device for picking
CN109089546A (en) * 2018-10-25 2018-12-28 天津城建大学 A kind of Multi-functional backpack fruit picking
CN109952859A (en) * 2019-04-17 2019-07-02 北京石油化工学院 Screw-on pineapple picker
CN110155209A (en) * 2019-06-25 2019-08-23 国网山东省电力公司龙口市供电公司 A kind of substation equipment maintenance and repair robot
CN112273053A (en) * 2020-11-27 2021-01-29 南宁学院 Flexible passion fruit picking manipulator end effector
CN113141869A (en) * 2021-05-14 2021-07-23 黑龙江农业经济职业学院 Automatic fruit picking device for agricultural planting
CN114467502A (en) * 2022-02-17 2022-05-13 南京农业大学 Swallowing type picking mechanical arm and robot system

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102672712A (en) * 2011-12-21 2012-09-19 河南科技大学 Fruit picking manipulator
CN102672712B (en) * 2011-12-21 2015-07-15 河南科技大学 Fruit picking manipulator
CN105027828A (en) * 2015-08-27 2015-11-11 华东交通大学 Mechanical arm applied to agricultural picking
CN106363618A (en) * 2016-08-29 2017-02-01 河海大学常州校区 Picking mechanical hand
CN108076821A (en) * 2017-12-13 2018-05-29 谷新运 A kind of latex three refers to inverted pendulum string pendulum dynamic formula apple-picking end effector
CN108353672A (en) * 2018-03-08 2018-08-03 南京太司德智能科技有限公司 A kind of screen of trees cleaning air-robot of rotatable tool plane
CN108353672B (en) * 2018-03-08 2023-10-20 南京太司德智能科技有限公司 Tree obstacle cleaning aerial robot with rotatable cutter plane
CN108432450A (en) * 2018-04-18 2018-08-24 浙江理工大学 A kind of rotating cutting type broccoli recovering device
CN108432450B (en) * 2018-04-18 2023-04-11 浙江理工大学 Rotary cutting type broccoli harvesting device
CN108496564A (en) * 2018-05-02 2018-09-07 昆明理工大学 A kind of fruit picking handgrip
CN108496554A (en) * 2018-05-02 2018-09-07 昆明理工大学 A kind of suspension type fruits picking mechanical arm
CN108718683A (en) * 2018-06-05 2018-11-02 浙江工贸职业技术学院 A kind of device for picking
CN108551879A (en) * 2018-06-27 2018-09-21 洋县庆安农业产业发展有限公司 The Kiwi berry picker of preventing damage fruit
CN108551879B (en) * 2018-06-27 2024-03-01 洋县朱鹮有机产业科技咨询有限公司 Kiwi fruit picking tool capable of preventing fruit from being damaged by clamping
CN109089546A (en) * 2018-10-25 2018-12-28 天津城建大学 A kind of Multi-functional backpack fruit picking
CN109089546B (en) * 2018-10-25 2024-05-28 天津城建大学 Multifunctional backpack fruit picking machine
CN109952859A (en) * 2019-04-17 2019-07-02 北京石油化工学院 Screw-on pineapple picker
CN109952859B (en) * 2019-04-17 2020-10-27 北京石油化工学院 Rotary twisting type pineapple picking device
CN110155209B (en) * 2019-06-25 2024-04-09 国网山东省电力公司龙口市供电公司 Transformer overhauls robot
CN110155209A (en) * 2019-06-25 2019-08-23 国网山东省电力公司龙口市供电公司 A kind of substation equipment maintenance and repair robot
CN112273053A (en) * 2020-11-27 2021-01-29 南宁学院 Flexible passion fruit picking manipulator end effector
CN113141869B (en) * 2021-05-14 2022-07-12 黑龙江农业经济职业学院 Automatic fruit picking device for agricultural planting
CN113141869A (en) * 2021-05-14 2021-07-23 黑龙江农业经济职业学院 Automatic fruit picking device for agricultural planting
CN114467502A (en) * 2022-02-17 2022-05-13 南京农业大学 Swallowing type picking mechanical arm and robot system
CN114467502B (en) * 2022-02-17 2022-11-08 南京农业大学 Swallowing type picking mechanical arm and robot system

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120829

Termination date: 20141221

EXPY Termination of patent right or utility model