CN113141858A - Resonance fatigue type corncob picking device - Google Patents
Resonance fatigue type corncob picking device Download PDFInfo
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- CN113141858A CN113141858A CN202110284238.1A CN202110284238A CN113141858A CN 113141858 A CN113141858 A CN 113141858A CN 202110284238 A CN202110284238 A CN 202110284238A CN 113141858 A CN113141858 A CN 113141858A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D45/00—Harvesting of standing crops
- A01D45/02—Harvesting of standing crops of maize, i.e. kernel harvesting
- A01D45/021—Cornheaders
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Abstract
The invention discloses a resonance fatigue type corn ear harvesting device, and belongs to the field of corn ear harvesting equipment. The device comprises a frame plate, a guide post fixedly arranged on the frame plate, an active resonance fatigue module, a passive resonance fatigue module and an active excitation structure module, wherein the active resonance fatigue module and the passive resonance fatigue module are arranged on the guide post in a sliding manner from top to bottom; the active resonance fatigue module comprises an active lifting plate, a group of active fatigue rods, an active fixing plate and a tension and compression spiral spring; the passive resonance fatigue module comprises a passive lifting plate, a group of passive fatigue rods, a passive fixing plate and a compression-resistant spiral spring; the active excitation structure module comprises a rotating shaft A, a driven wheel A, a reel A, a rotating shaft B, a driven wheel B, a reel B, a motor, a driving wheel, a fixed pulley A and a fixed pulley B; the driving wheel is simultaneously in meshing transmission with the driven wheel A and the driven wheel B. The resonance fatigue type corn ear picking device has the advantages of simple and reasonable structure, high corn ear picking efficiency and energy consumption reduction by utilizing staggered stress.
Description
Technical Field
The invention mainly relates to the technical field of corn ear harvesting equipment, in particular to a resonance fatigue type corn ear harvesting device.
Background
Mechanization of corn harvesting is a natural trend, and it is often necessary to harvest the ears of corn before the stalks are cut. The traditional corn ear picking device is complex in structure, high in energy consumption and poor in adaptability due to large ear picking force. Therefore, the corn ear harvesting device which utilizes the staggered stress to reduce energy consumption has certain application value.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: aiming at the technical problems in the prior art, the invention provides the resonance fatigue type corn ear picking device which is simple and reasonable in structure, high in corn ear picking efficiency, capable of reducing energy consumption by utilizing staggered stress and strong in adaptability.
In order to solve the problems, the solution proposed by the invention is as follows: a resonance fatigue type corn ear picking device comprises a frame plate, a guide post fixedly arranged on the frame plate, an active resonance fatigue module, a passive resonance fatigue module and an active excitation structure module, wherein the active resonance fatigue module and the passive resonance fatigue module are arranged on the guide post in a sliding manner from top to bottom; the left side and the right side of the frame plate are also provided with a side plate A and a side plate B.
The active resonance fatigue module comprises an active lifting plate which is slidably arranged on the guide post by adopting a linear bearing B, a group of active fatigue rods which are uniformly distributed along the horizontal direction and have one ends arranged on the active lifting plate at intervals, an active fixing plate fixedly arranged at the top end of the guide post, and a tension and compression spiral spring which is arranged on the guide post and has two ends respectively connected with the active fixing plate and the active lifting plate; the horizontal distance between the two adjacent active fatigue rods forms an active interval; the active interval is more than 1.5 times of the average diameter of the corn straws and less than 0.8 time of the average length of the corn ears;
the passive resonance fatigue module comprises a passive lifting plate which is slidably arranged on the lead post by adopting a linear bearing A, a group of passive fatigue rods which are uniformly distributed along the horizontal direction and have one ends arranged on the passive lifting plate at intervals, a passive fixing plate which is fixedly arranged at the middle lower part of the guide post, and a compression-resistant spiral spring which is arranged on the guide post, has the upper end freely abutting against the passive lifting plate and has the lower end connected with the passive fixing plate; the horizontal distance between two adjacent passive fatigue rods forms a passive interval; the passive interval is more than 1.5 times of the average diameter of the corn ear and less than 0.8 time of the average length of the corn ear;
the balance distance between the active resonance fatigue module and the passive resonance fatigue module in the vertical direction when the active resonance fatigue module and the passive resonance fatigue module are static forms a longitudinal interval, and the longitudinal interval is 1-1.5 times of the average length of the corn ear;
the active excitation structure module comprises an upright post A, an upright post C and an upright post B which are sequentially and fixedly arranged on the active fixing plate from left to right along the same straight line, a rotating shaft A rotationally arranged on the upright post A, a driven wheel A fixedly arranged on the rotating shaft A, a reel A arranged on the rotating shaft A by adopting a one-way bearing A, a rotating shaft B rotationally arranged on the upright post B, a driven wheel B fixedly arranged on the rotating shaft B, a reel B arranged on the rotating shaft B by adopting a one-way bearing B, a motor fixedly arranged on the upright post C, a driving wheel fixedly arranged on an output shaft of the motor, and a fixed pulley A and a fixed pulley B which are respectively arranged on two sides of the active fixing plate and can rotate freely; the driving wheel is simultaneously in meshing transmission with the driven wheel A and the driven wheel B.
When the reel A and the reel B rotate anticlockwise, the one-way bearing A and the one-way bearing B are in a stop state simultaneously; when the reel A43 and the reel B53 rotate clockwise, the one-way bearing A and the one-way bearing B are in an actuated state simultaneously;
the active excitation structure module also comprises a traction rope A and a traction rope B, the lower ends of the traction ropes A and the traction ropes B are connected with the active lifting plate and are bilaterally symmetrical relative to the guide post; the other end of the traction rope A penetrates through the fixed pulley A and is wound on the winding wheel A; the other end of the traction rope B penetrates through the fixed pulley B and is wound on the winding wheel B.
When the driving wheel rotates clockwise, the traction rope A and the traction rope B are wound on the reel A and the reel B respectively and synchronously.
Further, the stiffness of the tension and compression coil spring is greater than twice the stiffness of the compression coil spring.
Further, the vibration frequency of the passive lifting plate is greater than the vibration frequency of the active lifting plate.
Compared with the prior art, the invention has the following advantages and beneficial effects: the one-way bearing in the active excitation structure module can ensure that the rotation of the driven wheel is not influenced when the reel rotates clockwise, thereby reducing the energy consumption; the active resonance fatigue module and the passive resonance fatigue module can respectively give a downward reverse growth breaking force and an upward forward growth supporting force to the corn ears, and the breaking force and the upward forward growth supporting force are in reciprocating circulation, so that fatigue stress for picking the corn ears is formed, and the corn ear picking efficiency is improved. Therefore, the resonance fatigue type corn ear picking device has the advantages of simple and reasonable structure, high corn ear picking efficiency, energy consumption reduction by utilizing staggered stress and capability of being applied to a corn harvester.
Drawings
FIG. 1 is a schematic view of the structural principle of a resonance fatigue type ear of corn harvesting device of the present invention.
Fig. 2 is a schematic structural diagram of the active excitation structural module of the present invention.
Fig. 3 is a schematic view of a connection structure of an active lifting plate and an active fatigue rod of the active resonance fatigue module of the invention.
In the figure, 11-frame plate; 12-a guide post; 13-side panel a; 14-side panel B; 21-passive lifter plate; 22-passive fatigue rod; 23-passive spacing; 24-compression resistant helical springs; 25-passive fixation plate; 26-linear bearing a; 31-active lifting plate; 32-active fatigue rod; 33-active spacing; 34, pulling and pressing a spiral spring; 35-active fixing plate; 36-linear bearing B; 41-column A; 42-driven wheel a; 43-reel A; 44-fixed pulley A; 45-a hauling cable A; 46-axis of rotation a; 47-one-way bearing A; 51-column B; 52-driven pulley B; 53-reel B; 54-fixed pulley B; 55-a hauling cable B; 56-rotating shaft B; 57-one-way bearing B; 61-column C; 62-driving wheel; 63-motor.
Detailed Description
The invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the embodiment provides a resonance fatigue type corn ear picking device, which includes a frame plate 11, a guide post 12 fixedly installed on the frame plate 11, an active resonance fatigue module and a passive resonance fatigue module installed on the guide post 12 in a slidable manner from top to bottom, and an active excitation structure module; the left and right sides of the frame plate 11 are also provided with a side plate A13 and a side plate B14. The side panels a13, B14 and frame panel 11 form an open box that can contain ears of corn.
Referring to fig. 1 and 3, the active resonance fatigue module includes an active lifting plate 31 slidably mounted on the guide post 12 by using a linear bearing B36, a set of active fatigue rods 32 uniformly distributed along the horizontal direction and mounted on the active lifting plate 31 at one end at intervals, an active fixing plate 35 fixedly mounted on the top end of the guide post 12, and a tension and compression coil spring 34 sleeved on the guide post 12 and having two ends respectively connected to the active fixing plate 35 and the active lifting plate 31; the horizontal distance between two adjacent active fatigue rods 32 forms an active space 33; the active spacing 33 is greater than 1.5 times the average diameter of the corn stover and less than 0.8 times the average length of the corn ear. The active interval 33 is larger than 1.5 times of the diameter of the corn straw, so that the probability that the corn straw is broken by the active fatigue rod 32 is reduced; the active interval 33 is less than 0.8 time of the length of the corncob, so that the active fatigue rod 32 can give a downward bending force to the corncob on the cornstalk when moving downwards, and the bending force is opposite to the growth direction, thereby being beneficial to dropping the corncob from the stalk.
Referring to fig. 1, the passive resonance fatigue module includes a passive lifting plate 21 slidably mounted on the wire guide post 12 by using a linear bearing a26, a group of passive fatigue rods 22 uniformly distributed along the horizontal direction and mounted on the passive lifting plate 11 at one end at intervals, a passive fixing plate 25 fixedly mounted on the middle lower part of the guide post 12, and a compression-resistant coil spring 24 sleeved on the guide post 12 and having an upper end freely abutting against the passive lifting plate 21 and a lower end connected with the passive fixing plate 25; the horizontal distance between two adjacent passive fatigue rods 22 forms a passive interval 23; the passive spacing 23 is greater than 1.5 times the average diameter of the ear of corn and less than 0.8 times the average length of the ear of corn.
The passive spacing 23 is larger than 1.5 times of the average diameter of the corn ear, so that the dropped corn ear can slide into an opening box of the corn ear through the passive spacing 23; the passive spacing 23 is less than 0.8 times of the average length of the corn ear, so that the passive fatigue rod 22 can give an upward supporting force to the corn ear on the corn straw when moving upwards, and the supporting force gives a staggered stress to the root of the corn ear along the growth direction, thereby forming a fatigue cycle with the downward bending force and accelerating the falling of the corn ear. The widths of the active lifting plate 31 and the passive lifting plate 21 are equal, and the outermost one of the passive fatigue rods 22 and the outermost one of the active fatigue rods 32 are aligned in the vertical direction.
When the active resonance fatigue module and the passive resonance fatigue module are static, a longitudinal interval is formed along the balance distance in the vertical direction, the longitudinal interval is 1-1.5 times of the length of the corncob, and the active fatigue rod 32 and the passive fatigue rod 22 can move to the position of the corncob.
Referring to fig. 1 and 2, the active excitation structure module includes an upright a41, an upright C61 and an upright B51 fixedly mounted on the active fixing plate 35 from left to right in sequence, a rotating shaft a46 rotatably mounted on the upright a41, a driven wheel a42 fixedly mounted on the rotating shaft a46, a reel a43 mounted on the rotating shaft a46 by using a one-way bearing a47, a rotating shaft B56 rotatably mounted on the upright B51, a driven wheel B52 fixedly mounted on the rotating shaft B56, a reel B53 mounted on the rotating shaft B56 by using a one-way bearing B57, a motor 63 fixedly mounted on the upright C61, a driving wheel 62 fixedly mounted on an output shaft of the motor 63, the driving wheel 62 is simultaneously in meshing transmission with the driven wheel a42 and the driven wheel B52, and the driven wheel a42 and the driven wheel B52 are left-right symmetric with respect to the guide column 12; and a fixed pulley A44 and a fixed pulley B54 which are respectively arranged at two sides of the driving fixing plate 35 and can freely rotate.
When the reel a43 and the reel B53 rotate counterclockwise, the one-way bearing a47 and the one-way bearing B57 are in a stopped state at the same time. Thus, when the capstan 62 rotates clockwise, the follower a42 and the follower B52 will rotate counterclockwise, and due to the "stop", reel a43 rotates counterclockwise in synchronism with the follower a42, and reel B53 and follower B52 rotate counterclockwise in synchronism. When the reel A43 and the reel B53 rotate clockwise, the one-way bearing A47 and the one-way bearing B57 are in a permission state simultaneously; thus, although reel a43 and reel B53 rotate clockwise, driven wheel a42 and driven wheel B52 will be stationary due to "allowing".
The active excitation structure module also comprises a traction rope A45 and a traction rope B55, wherein the lower ends of the traction ropes A45 and the traction rope B55 are connected with the active lifting plate 31 and are bilaterally symmetrical relative to the guide post 12; the other end of the traction rope A45 passes around the fixed pulley A44 and is wound on the reel A43; the other end of the traction rope B55 passes around the fixed pulley B54 and is wound on the reel B53.
When the driver 62 rotates clockwise, the reel a43 and the reel B53 synchronously wind the traction rope a45 and the traction rope B55, respectively.
Preferably, the stiffness of the tension/compression coil spring 34 is greater than twice the stiffness of the compression coil spring 24. When the corn ear bends downwards, the passive lifting plate 21 can generate obvious displacement downwards, so that part of kinetic energy is converted into elastic potential energy of the tension and compression spiral spring 34.
Preferably, the vibration frequency of the passive lifting plate 21 is greater than the vibration frequency of the active lifting plate 31. The vibration frequency of the passive lifting plate 21 is not less than that of the active lifting plate 31, so that the fatigue degree of the corn ear bending up and down can be increased rapidly, and the time for picking the corn ear is saved.
Active excitation principle: the motor 63 rotates clockwise to drive the driving wheel 62 to rotate clockwise, and further drive the driven wheel A42 and the driven wheel B52 to rotate counterclockwise; at the moment, the one-way bearing A47 and the one-way bearing B57 are in a stop state, so that the reel A43 and the reel B53 are driven to rotate in the counterclockwise direction, and the traction rope A45 and the traction rope B55 are synchronously wound respectively; the active lifting plate 31 and the active fatigue rod 32 rise, and the tension and compression coil spring 34 generates certain compression deformation to store elastic potential energy. When the driven wheel A42 and the driven wheel B52 are stationary due to the clockwise enabling state of the one-way bearing A47 and the one-way bearing B57 after the motor 63 stops, the reel A43 and the reel B53 can release the hauling rope A45 and the hauling rope B55 in the clockwise direction; the elastic potential energy stored in the tension and compression coil spring 34 makes the active lifting plate 31 and the active fatigue rod 32 reciprocate up and down, thereby generating a bending force in a reverse growth direction to the corncob.
Passive fatigue principle: the downward bending corncob applies a downward acting force to the passive fatigue rod 22 and the passive lifting plate 21, and the stiffness of the tension and compression coil spring 34 is much greater than that of the compression coil spring 24, so that the passive lifting plate 21 generates a significant displacement downward, and further compresses the compression coil spring 24 to generate a significant compression deformation. The passive fatigue rod 22 and the passive lifting plate 21 generate vertical reciprocating vibration under the actions of the elasticity of the compression-resistant spiral spring 24, the gravity of the corn ear and the impact force, so that an upward supporting force is given to the corn ear, and the root of the corn ear is subjected to passive fatigue fracture.
The working process of the invention is as follows:
firstly, the motor 63 rotates clockwise to drive the driving wheel 62 to rotate clockwise, the reel A43 and the reel B53 rotate counterclockwise, the traction rope A45 and the traction rope B55 are respectively and synchronously wound, the spiral spring 34 is pulled and pressed to generate certain compression deformation, and elastic potential energy is stored;
then, the motor 63 stops working, the active lifting plate 31 and the active fatigue rod 32 move downwards to give a downward bending force to the corncobs; the corn ears bent downwards give a downward acting force to the passive fatigue rod 22 and the passive lifting plate 21, so that the compression-resistant spiral spring 24 generates a certain compression deformation;
then, the active lifting plate 31 and the active fatigue rod 32 move upward; the passive fatigue rod 22 and the passive lifting plate 21 move upwards to give a holding force to the corn ears, so that staggered fatigue stress is generated;
finally, the active lifting plate 31 and the active fatigue rod 32 move up and down in a reciprocating manner, and the passive fatigue rod 22 and the passive lifting plate move up and down until the corncobs fall off; the fallen ears slide down through the passive gap 23 into the ear's open box.
The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through creative efforts should fall within the scope of the present invention.
Claims (3)
1. A resonance fatigue type corn ear picking device comprises a frame plate (11), a guide post (12) fixedly arranged on the frame plate (11), an active resonance fatigue module, a passive resonance fatigue module and an active excitation structure module, wherein the active resonance fatigue module and the passive resonance fatigue module are arranged on the guide post (12) in a sliding manner from top to bottom; curb plate A (13) and curb plate B (14) have still been installed to the left and right sides of frame board (11), its characterized in that:
the active resonance fatigue module comprises an active lifting plate (31) which is slidably arranged on the guide post (12) by adopting a linear bearing B (36), a group of active fatigue rods (32) which are uniformly distributed along the horizontal direction and are arranged on the active lifting plate (31) at one end at intervals, an active fixing plate (35) which is fixedly arranged at the top end of the guide post (12), and a tension and compression spiral spring (34) which is arranged on the guide post (12) and is respectively connected with the active fixing plate (35) and the active lifting plate (31) at two ends; the horizontal distance between two adjacent active fatigue rods (32) forms an active interval (33); the active interval (33) is more than 1.5 times of the average diameter of the corn straws and less than 0.8 time of the average length of the corn ears;
the passive resonance fatigue module comprises a passive lifting plate (21) which is arranged on the wire guide post (12) by adopting a slidable linear bearing A (26), a group of passive fatigue rods (22) which are uniformly distributed along the horizontal direction and are arranged on the passive lifting plate (11) at one end at intervals, a passive fixing plate (25) which is fixedly arranged at the middle lower part of the guide post (12), and a compression-resistant spiral spring (24) which is arranged on the guide post (12) and is provided with an upper end freely lower than the passive lifting plate (21) and a lower end connected with the passive fixing plate (25); the horizontal distance between two adjacent passive fatigue rods (22) forms a passive interval (23); the passive spacing (23) is greater than 1.5 times the average diameter of the ear of corn and less than 0.8 times the average length of the ear of corn;
the balance distance between the active resonance fatigue module and the passive resonance fatigue module in the vertical direction when the active resonance fatigue module and the passive resonance fatigue module are static forms a longitudinal interval, and the longitudinal interval is 1-1.5 times of the average length of the corn ear;
initiative excitation structure module including from the left hand right side in proper order fixed install in stand A (41), stand C (61) and stand B (51) on initiative fixed plate (35) rotate install in pivot A (46) on stand A (41), fixed install in from driving wheel A (42) on pivot A (46), adopt one-way bearing A (47) install in reel A (43) on pivot A (46) rotate install in pivot B (56) on stand B (51), fixed install in from driving wheel B (52) on pivot B (56), adopt one-way bearing B (57) install in reel B (53) on pivot B (56), fixed install in motor (63) on stand C (61), fixed install in motor (63) on output shaft drive wheel (62) are installed respectively in initiative fixed plate (35) both sides and can free rotation's fixed pulley A (44) and fixed pulley A (51) B (54); the driving wheel (62) is meshed with the driven wheel A (42) and the driven wheel B (52) for transmission;
when the reel A (43) and the reel B (53) rotate anticlockwise, the one-way bearing A (47) and the one-way bearing B (57) are in a stop state simultaneously; when the reel A (43) and the reel B (53) rotate clockwise, the one-way bearing A (47) and the one-way bearing B (57) are in a permission state simultaneously;
the active excitation structure module further comprises a traction rope A (45) and a traction rope B (55), the lower ends of the traction ropes are connected with the active lifting plate (31) and are bilaterally symmetrical relative to the guide post (12); the other end of the traction rope A (45) passes through the fixed pulley A (44) and is wound on the reel A (43); the other end of the traction rope B (55) passes through the fixed pulley B (54) and is wound on the reel B (53);
when the driving wheel (62) rotates clockwise, the traction rope A (45) and the traction rope B (55) are respectively and synchronously wound on the reel A (43) and the reel B (53).
2. The resonance fatigue type ear of corn harvesting device of claim 1, characterized in that: the stiffness of the tension and compression coil spring (34) is greater than twice the stiffness of the compression coil spring (24).
3. The resonance fatigue type ear of corn harvesting device of claim 1, characterized in that: the vibration frequency of the passive lifting plate (21) is greater than the vibration frequency of the active lifting plate (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110284238.1A CN113141858B (en) | 2021-03-17 | 2021-03-17 | Resonance fatigue type corncob picking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110284238.1A CN113141858B (en) | 2021-03-17 | 2021-03-17 | Resonance fatigue type corncob picking device |
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| CN113141858A true CN113141858A (en) | 2021-07-23 |
| CN113141858B CN113141858B (en) | 2022-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110284238.1A Active CN113141858B (en) | 2021-03-17 | 2021-03-17 | Resonance fatigue type corncob picking device |
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Citations (4)
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|---|---|---|---|---|
| EP0138007A1 (en) * | 1983-09-06 | 1985-04-24 | Deere & Company | Row sensing apparatus for a crop harvester |
| US7752829B1 (en) * | 2009-08-20 | 2010-07-13 | Clever Tech Inc. | Auger stripper arrangement for corn head |
| CN110063125A (en) * | 2019-06-10 | 2019-07-30 | 山东农业大学 | A kind of low damage corn snapping unit of corn self-excited vibration |
| CN210226240U (en) * | 2019-06-10 | 2020-04-03 | 山东农业大学 | Corn self-excited vibration low-loss ear picking mechanism |
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2021
- 2021-03-17 CN CN202110284238.1A patent/CN113141858B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0138007A1 (en) * | 1983-09-06 | 1985-04-24 | Deere & Company | Row sensing apparatus for a crop harvester |
| US7752829B1 (en) * | 2009-08-20 | 2010-07-13 | Clever Tech Inc. | Auger stripper arrangement for corn head |
| CN110063125A (en) * | 2019-06-10 | 2019-07-30 | 山东农业大学 | A kind of low damage corn snapping unit of corn self-excited vibration |
| CN210226240U (en) * | 2019-06-10 | 2020-04-03 | 山东农业大学 | Corn self-excited vibration low-loss ear picking mechanism |
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| Title |
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| 王骞等: "玉米激振摘穗机理分析与参数试验优化", 《农业机械学报》 * |
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