CN111096150B - Elliptical-track excitation type oil-tea camellia fruit picking machine - Google Patents

Elliptical-track excitation type oil-tea camellia fruit picking machine Download PDF

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Publication number
CN111096150B
CN111096150B CN201911292467.7A CN201911292467A CN111096150B CN 111096150 B CN111096150 B CN 111096150B CN 201911292467 A CN201911292467 A CN 201911292467A CN 111096150 B CN111096150 B CN 111096150B
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connecting rod
finger row
motor
groove
finger
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CN111096150A (en
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杜小强
沈腾飞
张国凤
胡安国
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Zhejiang University of Technology ZJUT
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Zhejiang University of Technology ZJUT
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D46/00Picking of fruits, vegetables, hops, or the like; Devices for shaking trees or shrubs
    • A01D46/26Devices for shaking trees or shrubs; Fruit catching devices to be used therewith
    • A01D46/264Devices for beating or vibrating the foliage; Fruit catching devices to be used therewith

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Manipulator (AREA)
  • Harvesting Machines For Specific Crops (AREA)

Abstract

The invention relates to the technical field of forest fruit harvesting machinery. The oil tea tree fruit vibration type oil tea fruit picking machine has the advantages that oil tea tree branches can be excited in multiple directions, oil tea fruits are forced to move relatively, and the oil tea fruits fall off. The technical scheme is as follows: the oil-tea camellia fruit picking machine with the elliptical track excitation function is characterized in that: the picking machine comprises a motor for providing power, a vibration excitation device for exciting branches of fruit trees, a transmission device connected between the motor and the vibration excitation device for transmitting power, and a fixing device for supporting the motor and the vibration excitation device; the fixing device comprises a rack and two optical axes which are horizontally arranged and can be vertically and slidably positioned on the rack through a sliding pair.

Description

Elliptical-track excitation type oil-tea camellia fruit picking machine
Technical Field
The invention relates to the technical field of forest fruit harvesting machinery, in particular to an elliptic trajectory excitation type oil tea fruit picking machine.
Background
The oil tea is a unique woody edible oil tree species in China and is one of four woody oil plants in the world. Tea oil is known as "eastern olive oil". Although some basic research achievements exist in the mechanized picking link of the camellia oleifera fruits in China, no qualitative product exists, so that manual picking is usually adopted, the labor intensity is high, and the picking efficiency is low. The picking of the oil tea fruits becomes the weakest ring of the development of the oil tea industry and gradually becomes the bottleneck of hindering the rapid development of the oil tea industry, so the problem of picking the oil tea fruits needs to be solved urgently.
Disclosure of Invention
The invention aims to overcome the defects of the background technology, and provides the elliptical-track excitation type oil tea fruit picking machine which can excite the branches of oil tea trees in multiple directions to force the oil tea fruits to move relatively so as to enable the oil tea fruits to fall off, and the elliptical-track excitation type oil tea fruit picking machine has the characteristics of simple structure, convenience in operation, good picking effect and high working efficiency.
The technical scheme provided by the invention is as follows:
the oil-tea camellia fruit picking machine with the elliptical track excitation function is characterized in that: the picking machine comprises a motor for providing power, a vibration excitation device for exciting branches of fruit trees, a transmission device connected between the motor and the vibration excitation device for transmitting power, and a fixing device for supporting the motor and the vibration excitation device;
the fixing device comprises a rack and two optical axes which are horizontally arranged and can be vertically and slidably positioned on the rack through a sliding pair;
the vibration excitation device comprises a plurality of sliding blocks which can be horizontally positioned on two optical axes in a sliding manner, a finger row frame which is arranged along a vertical plane and is fixed on the sliding blocks, a plurality of finger row plates which are horizontally fixed on the finger row frame, and a plurality of finger row rods which are fixed on the finger row plates and extend outwards along a plane where the vertical finger row frame is located;
the transmission device comprises a cross through groove, a front connecting rod, a rear connecting rod, a first cylindrical sliding block, a second cylindrical sliding block, a driving shaft, a crank wheel and a connecting shaft, wherein the cross through groove is formed in the rack and consists of a horizontal through groove and a vertical through groove, the front connecting rod and the rear connecting rod are parallel to each other and are respectively positioned at two sides of the cross through groove, the first cylindrical sliding block is slidably positioned in the vertical through groove, two ends of the first cylindrical sliding block are respectively hinged to the front connecting rod and the rear connecting rod, one end of the second cylindrical sliding block is hinged to the front connecting rod and the other end of the second cylindrical sliding block is fixedly connected with the finger row frame, the crank wheel is fixedly connected with a motor shaft of the motor through a; the axes of the connecting shaft, the first cylindrical sliding block, the second cylindrical sliding block and the driving shaft are parallel to each other and perpendicular to the plane of the finger row frame.
The front connecting rod is provided with a plurality of mounting holes which are used for mounting the driving shaft and have different positions so as to adjust the motion trail of the excitation device.
The finger row rods on two adjacent finger row plates are arranged in a staggered way.
The finger row rod is fixed on the finger row plate through the optical axis fixing ring.
The finger row rods are arranged in a wave shape.
The motor is a direct current motor.
The invention has the beneficial effects that:
1) in the transmission device, when the crank wheel rotates, the connecting shaft drives the two cylindrical sliding blocks to respectively slide in the horizontal through groove and the vertical through groove of the cross-shaped through groove, so that the driving shaft moves in an elliptical track, and the driving shaft drives the vibration excitation device to realize the elliptical track movement.
2) The front connecting rod is provided with mounting holes at different positions, the elliptical motion track of the excitation device can be changed by changing the mounting position of the driving shaft, and the eccentricity of the elliptical motion track of the excitation device can be adjusted, so that the excitation intensity is adjusted.
3) The distance between the adjacent finger row plates and the adjacent finger row rods can be determined according to actual conditions, so that the oil tea trees of different types and different densities can be picked.
4) The excitation device can horizontally slide along the optical axis, and the optical axis can vertically slide along the guide rail, so that the elliptic track of the excitation device is decomposed into horizontal and vertical movements, which is greatly superior to a unidirectional excitation track, so that some branches bear longitudinal vibration, some branches bear transverse vibration, effective vibration of branches in different growth directions can be excited, and vibration energy is transmitted to fruit tree branches in different growth directions; in addition, the vibration excitation device drives the fruit tree branches to do accelerated motion, so that the vibration and the direction change of the fruits are more easily caused, and the picking efficiency is greatly improved.
5) The invention has simple structure, convenient operation and good picking effect, can obviously reduce the labor intensity of pickers and is suitable for popularization and application.
Drawings
Fig. 1 is a schematic perspective view (front view) of the present invention.
Fig. 2 is a schematic diagram of a second (reverse) perspective structure of the present invention.
Fig. 3 is a schematic view of the mounting structure of the finger row frame (the finger row rod is omitted) in the present invention.
Fig. 4 is a schematic view of the mounting structure of the transmission device of the present invention.
Fig. 5 is a perspective view of the front link according to the present invention.
Fig. 6 is a front view of the finger stick of the present invention.
Fig. 7 is a schematic view of the movement locus of the driving shaft in the present invention.
Reference numerals:
101-a frame; 102-a motor fixing plate; 103-a guide rail; 104-a rail slide; 105-the optical axis; 106-optical axis fixing base; 201-an electric motor; 202-reduction box; 203-crank wheel; 204-a connecting shaft; 205-rear link; 206-front link; 207-a first cylindrical slider; 208-a drive shaft; 209-a cross through slot; 210. a second cylindrical slider; 211. mounting holes; 301-finger row frame; 302-finger board; 303-finger row bar; 304-a slider; 305-optical axis fixation ring.
Detailed Description
The following further description is made with reference to the embodiments shown in the drawings.
The elliptical-track excitation type oil tea fruit picking machine as shown in fig. 1 and fig. 2 comprises a motor 201, a fixing device, an excitation device and a transmission device.
The motor is used for providing power; the motor is a direct current motor.
The fixing device is used for supporting the motor and the excitation device and comprises a rack 101, a motor fixing plate 102, two guide rails 103, four guide rail sliding blocks 104 and two optical axes 105. The motor fixing plate is fixed on the rack through bolts and used for supporting the motor. The two guide rails are vertically fixed on the frame; the two optical axes are horizontally arranged, two ends of the two optical axes are fixedly connected with the guide rail sliding blocks respectively through the optical axis fixing seats 106, and the guide rail sliding blocks are in sliding fit with the guide rails, so that the two optical axes can move vertically along the guide rails.
As shown in fig. 3 and 6, the excitation device is used for exciting fruit tree branches, and includes a finger row frame 301, a plurality of (four in the figure) sliders 304, a plurality of (four in the figure) finger row plates 302, and a plurality of finger row rods 303. The finger row frame is arranged along a vertical plane. The four sliding blocks are respectively installed on the two optical axes in a sliding mode in pairs, so that the finger row frame is positioned on the two optical axes. A plurality of finger board are horizontally fixed (preferably in a bolt fixing mode) on the finger frame; a plurality of the finger bars are fixed on the finger board through the optical axis fixing ring 305, and the finger bars extend outwards perpendicular to the plane of the finger frame. The distance between the adjacent finger row plates and the adjacent finger row rods can be set according to actual conditions in a user-defined mode so as to adapt to oil tea tree trees of different types and different densities. The fingerboard rods are arranged in a wave shape to increase the excitation area of the fingerboard rods. The finger row rods on two adjacent finger row plates are arranged in a staggered mode to enhance the vibration excitation effect. When the device works, the vibration excitation device can horizontally move along the optical axis, the optical axis can vertically move along the guide rail, and the superposed motion track is the elliptic motion track of the vibration excitation device.
As shown in fig. 4, the transmission device is connected between the motor and the excitation device to transmit power. The transmission comprises a crank wheel 203, a connecting shaft 204, a rear connecting rod 205, a first cylindrical slider 207, a second cylindrical slider 210, a front connecting rod 206, a driving shaft 208 and a cross through groove 209. The axes of the connecting shaft, the first cylindrical sliding block, the second cylindrical sliding block and the driving shaft are parallel to each other and are perpendicular to the plane of the finger row frame. The center of the crank wheel is fixedly connected with a motor shaft of the motor through a reduction box 202. One end of the connecting shaft is fixed at the eccentric position of the crank wheel, and the other end of the connecting shaft is hinged to the middle part of the rear connecting rod. The cross-shaped through groove is formed in the rack and consists of a horizontal through groove and a vertical through groove. The front connecting rod and the rear connecting rod are parallel to each other and are respectively positioned on two sides of the cross-shaped through groove. The first cylindrical sliding block is slidably positioned in the vertical through groove, and two ends of the first cylindrical sliding block are hinged to the front connecting rod and the rear connecting rod respectively. The second cylindrical sliding block can be slidably positioned in the vertical through groove, and two ends of the second cylindrical sliding block are hinged to the front connecting rod and the rear connecting rod respectively. The front connecting rod is provided with a plurality of mounting holes 211 with different positions. One end of the driving shaft is hinged in the mounting hole on the front connecting rod, and the other end of the driving shaft is fixedly connected with the finger row frame so as to drive the vibration excitation device to move.
When the crank wheel rotates, the rear connecting rod is driven by the connecting shaft, the rear connecting rod drives the two cylindrical sliding blocks to move along the corresponding through grooves, so that the front connecting rod generates an elliptical track, and the driving shaft drives the vibration excitation device to do elliptical motion under the driving of the front connecting rod (as shown in fig. 7). The position of the mounting hole where the driving shaft is located determines the motion track of the excitation device, and the elliptical motion track of the excitation device can be changed by changing the mounting position of the driving shaft, namely, the eccentricity of the elliptical motion track of the excitation device can be adjusted, so that the excitation intensity is adjusted.
The working mode of the invention is as follows:
when the device works, a finger row rod of the excitation device is inserted into the oil-tea tree crown, the motor is started, and the transmission device converts the circular motion of the connecting shaft into the elliptical motion of the excitation device; the finger-type arranging rod is used for exciting the branches of the oil-tea trees by an elliptic track under the power of the elliptic motion of the exciting device, so that some branches bear longitudinal vibration and some branches bear transverse vibration, the effective vibration of the branches in different growth directions can be excited, the vibration energy is transmitted to the branches of the fruit trees in different growth directions, the oil-tea fruits move with the branches at accelerated speed, the vibration and the deflection of the fruits are more easily caused, the forced vibration of the oil-tea fruits generates inertia force, and when the inertia force is greater than the binding force between the fruits and the branches, the oil-tea fruits fall off, so that the oil-tea fruits are harvested; the elliptical track excitation shortens the time that the inertia force of the oil tea fruits is larger than the binding force of the oil tea fruits and fruit branches, and improves the picking efficiency.
Finally, it should be noted that the above-mentioned list is only a specific embodiment of the present invention. It is obvious that the present invention is not limited to the above embodiments, but many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.

Claims (2)

1. The oil-tea camellia fruit picking machine with the elliptical track excitation function is characterized in that: the picking machine comprises a motor (201) for providing power, a vibration excitation device for exciting branches of fruit trees, a transmission device connected between the motor and the vibration excitation device for transmitting power, and a fixing device for supporting the motor and the vibration excitation device;
the fixing device comprises a frame (101) and two optical axes (105) which are horizontally arranged and can be vertically and slidably positioned on the frame through a sliding pair;
the excitation device comprises a plurality of sliding blocks (304) which can be horizontally positioned on two optical axes in a sliding way, a finger row frame (301) which is arranged along a vertical plane and is fixed on the sliding blocks, a plurality of finger row plates (302) which are horizontally fixed on the finger row frame, and a plurality of finger row rods (303) which are fixed on the finger row plates and extend outwards along a plane where the vertical finger row frame is located;
the transmission device comprises a cross through groove (209), a front connecting rod (206) and a rear connecting rod (205), wherein the cross through groove is formed in the rack and consists of a horizontal through groove and a vertical through groove, the front connecting rod (206) and the rear connecting rod (205) are parallel to each other and are respectively positioned at two sides of the cross through groove, a first cylindrical sliding block (207) is slidably positioned in the vertical through groove, two ends of the first cylindrical sliding block are respectively hinged on the front connecting rod and the rear connecting rod, a second cylindrical sliding block (210) is slidably positioned in the horizontal through groove, two ends of the second cylindrical sliding block are respectively hinged on the front connecting rod and the rear connecting rod, a driving shaft (208) with one end hinged on the front connecting rod and the other end fixedly connected with the finger row frame, a crank wheel (203) with the center; the axes of the connecting shaft, the first cylindrical sliding block, the second cylindrical sliding block and the driving shaft are parallel to each other and are vertical to the plane of the finger row frame;
the front connecting rod is provided with a plurality of mounting holes (211) which are used for mounting the driving shaft and have different positions so as to adjust the motion trail of the excitation device;
the finger row rods on two adjacent finger row plates are arranged in a staggered manner;
the finger row rod is fixed on the finger row plate through an optical axis fixing ring (305);
the motor is a direct current motor.
2. The elliptical trajectory excitation type oil tea fruit picking machine according to claim 1, characterized in that: the finger row rods are arranged in a wave shape.
CN201911292467.7A 2019-12-16 2019-12-16 Elliptical-track excitation type oil-tea camellia fruit picking machine Active CN111096150B (en)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112042386B (en) * 2020-09-18 2023-07-07 西北农林科技大学 Oil tea fruit picking device and application method thereof
CN115245099A (en) * 2021-04-27 2022-10-28 西北农林科技大学 Equipment is picked to low-amplitude matrimony vine of high frequency
CN113950955B (en) * 2021-11-22 2023-09-15 辰溪县瑶喜油茶开发有限公司 Method for picking oil tea fruits
CN113950956B (en) * 2021-11-22 2023-04-25 刘巧情 Portable oil tea fruit picking device
CN117242986B (en) * 2023-10-18 2024-05-07 南京林业大学 Castable eccentric excitation mechanism and harvesting device thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105537093A (en) * 2015-12-16 2016-05-04 上海大学 Guide rail type elliptic oscillating mechanism adjustable in eccentricity
CN105594374A (en) * 2016-02-05 2016-05-25 农业部南京农业机械化研究所 Vibration-type wolfberry fruit picking mechanism
CN108307805A (en) * 2018-04-13 2018-07-24 安徽农业大学 A kind of camellia oleifera fruit picker

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105537093A (en) * 2015-12-16 2016-05-04 上海大学 Guide rail type elliptic oscillating mechanism adjustable in eccentricity
CN105594374A (en) * 2016-02-05 2016-05-25 农业部南京农业机械化研究所 Vibration-type wolfberry fruit picking mechanism
CN108307805A (en) * 2018-04-13 2018-07-24 安徽农业大学 A kind of camellia oleifera fruit picker

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