CN112913552A - Crop mulching film uncovering method - Google Patents
Crop mulching film uncovering method Download PDFInfo
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- CN112913552A CN112913552A CN202110405069.2A CN202110405069A CN112913552A CN 112913552 A CN112913552 A CN 112913552A CN 202110405069 A CN202110405069 A CN 202110405069A CN 112913552 A CN112913552 A CN 112913552A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000005096 rolling process Methods 0.000 claims abstract description 60
- 230000005540 biological transmission Effects 0.000 claims abstract description 47
- 239000002689 soil Substances 0.000 claims abstract description 41
- 238000004804 winding Methods 0.000 claims abstract description 8
- 230000000712 assembly Effects 0.000 claims description 18
- 238000000429 assembly Methods 0.000 claims description 18
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims 3
- 230000009977 dual effect Effects 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 description 15
- 238000007599 discharging Methods 0.000 description 6
- 241001391944 Commicarpus scandens Species 0.000 description 3
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
- A01G13/0256—Ground coverings
- A01G13/0287—Devices for laying-out or removing ground coverings
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Abstract
The invention discloses a crop mulching film uncovering method, which comprises the following steps: s1, turning the soil pressed above the mulching film out of the film surface by a film lifting and soil unloading piece; s2, applying a film rolling pulling force to the mulching film by a film rolling mechanism, and rolling the mulching film; the film rolling mechanism is connected with the transmission mechanism; in step S2, when the film uncovering resistance is greater than the set value, the transmission mechanism is switched from the transmission state to the interruption state, and the film winding mechanism stops rotating. According to the method for removing the mulching film of the crops, when the mulching film is removed, the pressed mulching film can be removed and the pressed film soil can be removed by using the film removing and soil unloading piece, so that the film removing resistance is reduced, and the film breaking caused by overlarge resistance is avoided; by utilizing the tension-adjustable transmission mechanism, the proper tension can be adjusted according to the resistance and tension change of the film rolling roller, the stable tension of the rolled film is ensured, the film breaking is avoided, and the film is smoothly uncovered through the dual control and mutual cooperation of the film lifting and soil unloading piece and the tension-adjustable transmission mechanism.
Description
Technical Field
The invention belongs to the technical field of tobacco planting, and particularly relates to a crop mulching film uncovering method.
Background
When partial crops are planted, mulching films are adopted for covering in the early stage, and the films need to be uncovered in the later stage, so that the growth of the crops in the later stage is promoted, and meanwhile, the environment pollution caused by the residual mulching films in the field is prevented. The two edges of the field mulching film are compacted by soil, the tensile strength and toughness of the mulching film are reduced due to the fact that the mulching film is covered in the field for a long time, when the mulching film is uncovered, the soil pressing the edges of the mulching film needs to be cleaned off firstly, then the mulching film is uncovered with moderate force, and no residue exists. If the mulching film is removed by hard pulling, the mulching film is easy to break or damage, so that the integral mulching film is difficult to form and mulching film residue is easy to occur. The prior film uncovering method adopts manual operation. Relevant research data and reports show that film uncovering machines are also being researched to advance mechanical film uncovering. In the film uncovering machine, a film rolling roller is arranged on the machine, and the film rolling roller rotates and shakes when the machine runs. When the mulching film is taken off, the mulching film is rolled on a film rolling roller fixed on the mulching film to be taken off, and when the machine runs, the film rolling roller rotates and shakes, so that soil pressed on the edge of the mulching film can be shaken off, and the mulching film can be taken off.
The film uncovering machine under study also has the following technical defects that firstly, under the condition that the mulching film is tightly pressed and compacted, the pressed soil is difficult to shake and clean, so that the resistance is increased, and the film is easy to break; secondly, as the film is rolled by the film rolling roller, the diameter of the film rolling roller gradually increases, the tension gradually increases, and the film rolling resistance is objectively unstable and is easy to break; and thirdly, the mulching film is in a tensioned state when being rolled, so that the mulching film is rolled on the film rolling roller tightly, and the mulching film is difficult to be unloaded from the film rolling roller.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a crop mulching film uncovering method, and aims to realize smooth uncovering and avoid the situation of film breakage.
In order to achieve the purpose, the invention adopts the technical scheme that: the crop mulching film uncovering method adopts a mulching film uncovering machine and comprises the following steps:
s1, turning the soil pressed above the mulching film out of the film surface by a film lifting and soil unloading piece of the film uncovering machine;
s2, applying a film rolling tension to the mulching film by a film rolling mechanism of the film uncovering machine, and rolling the mulching film;
the film winding mechanism is connected with the transmission mechanism, and the transmission mechanism is set to be capable of switching between a transmission state and an interruption state; in step S2, when the film uncovering resistance is greater than the set value, the transmission mechanism is switched from the transmission state to the interruption state, and the film winding mechanism stops rotating.
The transmission mechanism comprises a driving end component and a driven end component, the film rolling mechanism is arranged on the driven end component, the driving end component comprises a supporting shaft, a driving wheel and a first friction plate which are rotatably arranged on the supporting shaft, a driving wheel and a second friction plate which are fixedly arranged on the supporting shaft, a pressure regulating piece and an elastic element which is arranged between the pressure regulating piece and the first friction plate and is used for applying elastic acting force to the first friction plate, the first friction plate and the second friction plate are positioned between the driving wheel and the driving wheel, and the set value is the friction plate generated after the first friction plate and the second friction plate are contacted.
The elastic element is a cylindrical spiral spring and is a compression spring, and a through hole for the elastic element to pass through is formed in the center of the driving wheel.
The pressure adjusting piece is in threaded connection with the supporting shaft.
The driven end assembly comprises a driven shaft and a driven wheel arranged on the driven shaft, the driving wheel and the driven wheel are chain wheels, and the transmission mechanism further comprises a transmission chain meshed with the driving wheel and the driven wheel.
The film rolling mechanism comprises a fixed baffle, a movable baffle and a film rolling support piece which can be rotatably arranged, the film rolling support piece is composed of a plurality of connecting rod assemblies, all the connecting rod assemblies are distributed along the circumferential direction, and the diameter of the film rolling support piece can be adjusted.
The connecting rod assembly is a parallel four-bar mechanism and comprises a fixed connecting rod, a movable connecting rod and a supporting rocker arm which is rotatably connected with the fixed connecting rod and the movable connecting rod, the length direction of the fixed connecting rod is parallel to that of the movable connecting rod, and the distance between the movable connecting rod and the axis of the film roll supporting piece is greater than that between the movable connecting rod and the axis of the film roll supporting piece.
The film roll supporting piece further comprises a supporting ring, all the connecting rod assemblies are distributed on the periphery of the supporting ring, and the fixed connecting rod is provided with a limiting groove for embedding the supporting ring.
The number of the connecting rod assemblies is four, and all the connecting rod assemblies are uniformly distributed along the circumferential direction.
The film uncovering machine further comprises a rack, a fixed support and a movable support are arranged on the rack, the movable baffle and the fixed baffle are located between the fixed support and the movable support, the lower end of the movable support is rotatably connected with the rack, and the movable baffle is detachably connected with the upper end of the movable support.
According to the method for removing the mulching film of the crops, when the mulching film is removed, the pressed mulching film can be removed and the pressed film soil can be removed by using the film removing and soil unloading piece, so that the film removing resistance is reduced, and the film breaking caused by overlarge resistance is avoided; by utilizing the tension-adjustable transmission mechanism, the proper tension can be adjusted according to the resistance and tension change of the film rolling roller, the stable tension of the rolled film is ensured, the film breaking is avoided, and the film is smoothly uncovered through the dual control and mutual cooperation of the film lifting and soil unloading piece and the tension-adjustable transmission mechanism. When the film roll is unloaded, a gap can be formed between the film rolling mechanism and the film roll in a natural working state, so that the film roll can be unloaded quickly.
Drawings
The description includes the following figures, the contents shown are respectively:
FIG. 1 is a schematic view of the structure of the film removing machine of the present invention;
FIG. 2 is a front view of the film stripping tool of the present invention;
FIG. 3 is a top view of the film stripping tool of the present invention;
FIG. 4 is a side view of the film stripping tool of the present invention;
FIG. 5 is a schematic structural view of the transmission mechanism;
FIG. 6 is an exploded schematic view of a drive end assembly;
FIG. 7 is a schematic structural view of the connecting rod assembly;
FIG. 8 is a schematic view of the movable flap being opened;
labeled as: 1. a frame; 2. a traveling wheel; 3. a drive mechanism; 4. a soil lifting shovel; 5. a transmission mechanism; 501. a driving wheel; 502. a driven wheel; 503. a support shaft; 504. a driven shaft; 505. a drive chain; 506. a pressure regulating member; 507. an elastic element; 508. a first friction plate; 509. a second friction plate; 510. a drive wheel; 6. a connecting rod assembly; 7. an upper bracket; 8. a lower bracket; 9. fixing grooves; 10. fixing a baffle plate; 11. a movable baffle; 12. a fixing pin; 13. a movable connecting rod; 14. fixing the connecting rod; 15. a support rocker arm; 16. a support ring; 17. a movable support.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.
It should be noted that, in the following embodiments, the "first" and "second" do not represent an absolute distinction relationship in structure and/or function, nor represent a sequential execution order, but merely for convenience of description.
The invention provides a method for removing a mulching film of crops, which adopts a film removing machine and comprises the following steps:
s1, turning the soil pressed above the mulching film out of the film surface by a film lifting and soil unloading piece of the film uncovering machine;
and S2, applying a film rolling pulling force to the mulching film by a film rolling mechanism of the film uncovering machine, and rolling the mulching film.
Specifically, as shown in fig. 1 to 8, the film uncovering machine comprises a frame 1, a traveling wheel 2 arranged on the frame 1, a film removing and soil discharging member arranged on the frame 1 and used for turning soil pressed above the mulching film out of the film surface when the film is removed, a film rolling mechanism rotatably arranged on the frame 1 and used for applying film rolling tension to the mulching film, and a transmission mechanism 5 connected with the film rolling mechanism and arranged to be capable of switching between a transmission state and an interruption state, wherein the transmission mechanism 5 in the transmission state is used for transmitting driving force to the film rolling mechanism so as to enable the film rolling mechanism to rotate. In the above step S1, the film removing and soil removing member is used to reduce the film uncovering resistance. In the step S2, in the film uncovering process, when the film uncovering resistance is greater than the set value, the transmission mechanism 5 is switched from the transmission state to the interruption state, the transmission mechanism 5 cannot drive the film rolling mechanism to rotate, the film rolling mechanism stops rotating, and the mulching film cannot be rolled up; in the film uncovering process, when the film uncovering resistance is smaller than a set value, the transmission mechanism 5 is switched to a transmission state from an interruption state, the transmission mechanism 5 can drive the film rolling mechanism to rotate, and the film rolling mechanism can roll up the mulching film.
As shown in fig. 1 to 4, the film-lifting and soil-discharging member is disposed at the front end of the frame 1, the film-winding mechanism is disposed at the rear end of the frame 1, the front end and the rear end are opposite ends of the frame 1 in the length direction, the rotation center line of the film-winding mechanism is horizontal, and the rotation center line of the film-winding mechanism is perpendicular to the length direction of the frame 1. The walking wheels 2 are rotatably arranged at the bottom of the frame 1, the walking wheels 2 are four in number, the four walking wheels 2 are distributed in a rectangular shape, and the film-lifting soil-unloading piece is positioned in front of the walking wheels 2. The film removing and soil discharging piece mainly comprises an adjusting support and a soil removing shovel 4, the adjusting support is vertically arranged, the upper end of the adjusting support is connected with the rack 1, the soil removing shovel 4 is fixedly installed at the lower end of the adjusting support, the soil removing shovel 4 is of a V-shaped structure, the soil removing shovel 4 of the structure is easily inserted into soil, and in the step S1, the soil removing shovel 4 is used for turning over the soil above the mulching film when the mulching film covering the crops is removed, and can enable the soil to be turned over to the outer side of the mulching film so that the soil pressed above the mulching film can be turned out of the film surface when the film is removed.
As shown in fig. 1 to 4, two film-lifting soil-discharging members are provided, the two film-lifting soil-discharging members are located on the same straight line parallel to the width direction of the rack 1, the width direction of the rack 1 is the horizontal direction, the width direction of the rack 1 is perpendicular to the length direction of the rack 1, and the two film-lifting soil-discharging members are symmetrically arranged. Preferably, the distance between the two film lifting and soil unloading pieces is adjustable, so that the mulching films with different widths can be removed; and the length of the adjusting bracket is adjustable, so that the height of the soil lifting shovel 4 can be adjusted, so that the soil shoveling depth can be adjusted, and in the step S1, the soil lifting shovels 4 of the two film lifting and soil unloading pieces work simultaneously, so that soil can be turned to two sides of the mulching film. Therefore, when the mulching film is uncovered, the two film lifting and soil unloading pieces are used for removing soil pressed on the mulching film, so that the film uncovering resistance can be reduced.
In this embodiment, the upper end of adjustment support is installed in frame 1 through the fastener that comprises bolt and nut to conveniently adjust two membranes and unload the distance between the earth piece, the upper end of adjustment support has the through-hole that lets the bolt pass, and adjustment support has a plurality of mounted positions along the width direction of frame 1 on frame 1, will adjust the support mounting and locate in the mounted position department of difference, and two membranes are unloaded the distance between the earth piece and also are different.
The adjusting bracket comprises an upper bracket 7 and a lower bracket 8, the upper bracket 7 and the lower bracket 8 are both arranged vertically, the upper end of the upper bracket 7 is connected with the rack 1, and the soil lifting shovel 4 is fixedly connected with the lower end of the lower bracket 8. The upper bracket 7 is of a structure with an opening at the lower end and a hollow interior, and the lower bracket 8 is inserted into the upper bracket 7 and can linearly move along the length direction of the upper bracket 7, so that the adjusting bracket can stretch and retract, and further the adjustment of the length of the adjusting bracket can be realized. After the length of the adjusting bracket is properly adjusted, the lower bracket 8 and the upper bracket 7 need to be fixed. The fixed mode accessible adopts the bolt to pass lower carriage 8 and upper bracket 7, sets up the locking hole that lets the bolt pass on lower carriage 8 and upper bracket 7 correspondingly, and the locking hole on lower carriage 8 and upper bracket 7 is for setting up a plurality ofly along vertical direction moreover.
As shown in fig. 1 to 6, the transmission mechanism 5 includes a driving end component and a driven end component, the film rolling mechanism is disposed on the driven end component, the driving end component includes a supporting shaft 503, a driving wheel 501 and a first friction plate 508 rotatably disposed on the supporting shaft 503, a driving wheel 510 and a second friction plate 509 fixedly disposed on the supporting shaft 503, a pressure adjusting member 506, and an elastic element 507 disposed between the pressure adjusting member 506 and the first friction plate 508 and used for applying an elastic force to the first friction plate 508, the first friction plate 508 and the second friction plate 509 are disposed between the driving wheel 501 and the driving wheel 510, the setting value is a friction plate generated after the first friction plate 508 and the second friction plate 509 contact, and the setting value is adjustable. The back shaft 503 is rotatable and sets up in frame 1, and the axis of back shaft 503 is parallel with the width direction of frame 1, and back shaft 503 is connected with actuating mechanism 3, and actuating mechanism 3 sets up in frame 1, and actuating mechanism 3 is for producing the revolving force, and the revolving force transmission that actuating mechanism 3 produced is to back shaft 503 to drive back shaft 503 rotates, and then can make drive mechanism 5 can transmit the revolving force to rolling up membrane mechanism, and the drive is rolled up membrane mechanism and is rotated. The first friction plate 508, the second friction plate 509 and the driving wheel 510 are all circular, the driving wheel 501, the first friction plate 508, the second friction plate 509 and the driving wheel 510 are coaxial with the supporting shaft 503, a through hole allowing the supporting shaft 503 to penetrate is formed in the center of the first friction plate 508, the second friction plate 509 and the driving wheel 510 are fixedly connected with the supporting shaft 503, the first friction plate 508 and the second friction plate 509 are located between the driving wheel 501 and the driving wheel 510, the first friction plate 508 is fixedly connected with the driving wheel 501, the second friction plate 509 is fixedly connected with the driving wheel 510, and the elastic element 507 applies pressure to the first friction plate 508 to enable the first friction plate 508 to be in contact with the second friction plate 509. The distance between the pressure adjusting part 506 and the driving part can be adjusted, so that the elastic force exerted on the first friction plate 508 by the elastic element 507 can be adjusted, the pressure between the first friction plate 508 and the second friction plate 509 is changed, the friction force generated between the first friction plate 508 and the second friction plate 509 can be adjusted, the friction force between the driving wheel 501 and the driving wheel 510 can be adjusted, the driving wheel 501 is controlled to rotate by the friction force, the transmission part is respectively linked with the driving wheel 501 and the driven wheel 502, the driven end component is controlled to rotate, and the film rolling pulling force exerted on the mulching film to be removed by the film rolling mechanism is controlled.
In this embodiment, as shown in fig. 5 and 6, the elastic element 507 is a cylindrical coil spring and is a compression spring, a through hole for the elastic element 507 to pass through is provided at the center of the driver 501, one end of the elastic element 507 is in contact with the first friction plate 508, and the other end of the elastic element 507 is in contact with the pressure adjusting member 506.
In this embodiment, as shown in fig. 5 and 6, the pressure adjusting member 506 is screwed to the support shaft 503, the pressure adjusting member 506 is a bolt, a threaded hole into which the pressure adjusting member 506 is screwed is provided at an end of the support shaft 503, and the elastic member 507 is sandwiched between a hexagonal head of the bolt and the first friction plate 508. The bolt is used as the pressure adjusting piece 506, and the position of the bolt can be adjusted by screwing, so that the elastic force of the elastic element 507 can be adjusted conveniently, the structure is simple, and the efficiency is high.
As shown in fig. 5 and 6, the driven end assembly includes a driven shaft 504 and a driven wheel 502 disposed on the driven shaft 504, the driving wheel 501 and the driven wheel 502 are both sprockets, the transmission mechanism 5 further includes a transmission member engaged with the driving wheel 501 and the driven wheel 502, and the transmission member is a transmission chain 505. The driven shaft 504 is rotatably arranged on the frame 1, the axis of the driven shaft 504 is parallel to the axis of the supporting shaft 503, the driven shaft 504 is positioned at the rear end of the frame 1, and the supporting shaft 503 is positioned between the front end and the rear end of the frame 1. The driven wheel 502 is coaxially and fixedly connected with the driven shaft 504, and the diameter of the driven wheel 502 is smaller than that of the driving wheel 501.
By adopting the transmission mechanism 5 with the structure, the position of the pressure adjusting piece 506 can be adjusted according to the change of the film uncovering resistance and the requirement of the film rolling tension in the film uncovering process, so as to meet the requirement that the film rolling mechanism can provide the proper film rolling tension, namely, in the step S2, when the film rolling tension is smaller than the set value, the first friction plate 508 and the second friction plate 509 synchronously rotate, the transmission mechanism 5 is in a transmission state, the film rolling mechanism can rotate, the rolling of the mulching film is realized, and the mulching film on the ground is wound on the film rolling mechanism; when the film uncovering resistance is greater than a set value, relative rotation can be generated between the first friction plate 508 and the second friction plate 509, the first friction plate 508 and the second friction plate 509 cannot rotate synchronously, the transmission mechanism 5 is in an interruption state, and rotating force cannot be transmitted to the film rolling mechanism, so that the film rolling mechanism stops rotating to prevent the mulching film from being pulled off. Therefore, through the transmission mechanism 5 with the structure, smooth film uncovering can be realized, the film breaking condition is avoided, and the adaptability of the machine tool is high.
As shown in fig. 1 to 4, 7 and 8, the film rolling mechanism includes a fixed baffle 10, a movable baffle 11 and a film roll supporting member which is rotatably arranged, the film roll supporting member is composed of a plurality of connecting rod assemblies 6, all the connecting rod assemblies 6 are distributed along the circumferential direction, and the diameter of the film roll supporting member is adjustable. The fixed baffle 10 is fixedly arranged on the driven shaft 504, the fixed baffle 10 and the movable baffle 11 are both disc-shaped structures, the connecting rod assemblies 6 are positioned between the fixed baffle 10 and the movable baffle 11, and all the connecting rod assemblies 6 are uniformly distributed along the circumferential direction by taking the axis of the driven shaft 504 as the central line. The connecting rod assembly 6 is a parallel four-bar linkage, the connecting rod assembly 6 comprises a fixed connecting rod 14, a movable connecting rod 13 and a supporting rocker arm 15 which is rotatably connected with the fixed connecting rod 14 and the movable connecting rod 13, the length direction of the fixed connecting rod 14 is parallel to that of the movable connecting rod 13, and the distance between the movable connecting rod 13 and the axis of the film roll supporting member is greater than that between the movable connecting rod 13 and the axis of the film roll supporting member. The fixed links 14 of all the connecting rod assemblies 6 are located on a first circumference, the movable links 13 of all the connecting rod assemblies 6 are located on a second circumference, the first circumference and the second circumference are coaxial with the driven shaft 504, the diameter of the first circumference is smaller than that of the second circumference, and the diameter of the film roll support is also the diameter of the second circumference. The fixed link 14 and the movable link 13 of each link assembly 6 are on the same straight line parallel to the radial direction of the driven shaft 504, the length directions of the movable link 13 and the fixed link 14 are parallel to the axis of the driven shaft 504, one end of the fixed link 14 in the length direction is fixedly connected with the fixed baffle 10, and the other end of the fixed link 14 in the length direction is located on the inner side of the movable baffle 11. The movable baffle 11 has a fixing groove for inserting one end of the movable connecting rod 13 in the length direction, the fixed baffle 10 has a fixing groove for inserting the other end of the movable connecting rod 13 in the length direction, the fixing grooves on the movable baffle 11 and the fixed baffle 10 are provided in plurality, and the number of the fixing grooves is the same as that of the connecting rod assemblies 6. In the above step S2, when the film roll support is in the maximum diameter state, the film roll support may be wound with the mulching film, and at this time, both ends of the movable link 13 in the length direction are respectively inserted into the fixing grooves of the movable baffle 11 and the fixed baffle 10, the movable baffle 11 and the fixed baffle 10 are used to limit the movable link 13 in the circumferential direction, the radial position of the movable link 13 is kept unchanged, and the distance between the movable link 13 and the driven shaft 504 is kept unchanged. One end of the supporting rocker arm 15 in the length direction is rotatably connected with the movable connecting rod 13, the other end of the supporting rocker arm 15 in the length direction is rotatably connected with the fixed connecting rod 14, the supporting rocker arms 15 of the connecting rod assembly 6 are arranged in a plurality, all the supporting rocker arms 15 are distributed on two opposite sides of the movable connecting rod 13, the supporting rocker arms 15 are sequentially arranged along the length direction of the movable connecting rod 13, each movable connecting rod 13 is connected with the fixed connecting rod 14 through two supporting rocker arms 15 at a plurality of positions in the length direction, the movable connecting rod 13 can translate relative to the fixed connecting rod 14, and then the diameter of the film roll supporting piece can be adjusted. After the membrane roll on the membrane rolling mechanism is formed, the membrane roll supporting piece is located at the center of the membrane roll, support is provided for the membrane roll, after the movable baffle plate 11 is detached, the diameter of the membrane roll supporting piece is reduced, the movable connecting rod 13 moves towards the position close to the fixed connecting rod 14, the end part of the movable connecting rod 13 is pulled out of the fixed groove in the fixed baffle plate 10, the included angle between the supporting rocker arm 15 and the movable connecting rod 13 is also reduced, after the diameter of the membrane roll supporting piece is reduced, a gap is formed between the membrane roll supporting piece and the membrane roll, the membrane roll can be rapidly taken down from the membrane roll supporting piece, the efficiency is high, and the operation is convenient.
As shown in fig. 7, the film roll support further includes a support ring 16, all the connecting rod assemblies 6 are distributed around the support ring 16, and the fixing connecting rod 14 has a limiting groove for the support ring 16 to be inserted into. The support ring 16 is of a circular ring structure, the driven shaft 504 and the support ring 16 are coaxially arranged, the driven shaft 504 penetrates through a central hole of the support ring 16, the outer edge of the support ring 16 is embedded into a limiting groove on each fixed connecting rod 14, and all the fixed connecting rods 14 are connected into a whole through the support ring 16, so that the fixed connecting rods 14 are firmly fixed.
As shown in fig. 7, in the present embodiment, the number of the connecting rod assemblies 6 is four, each movable connecting rod 13 is connected to the fixed connecting rod 14 through four supporting rocker arms 15, four fixing slots are respectively formed in the movable baffle 11 and the fixed baffle 10, and the four fixing slots in the movable baffle 11 and the fixed baffle 10 are uniformly distributed along the circumferential direction.
When the connecting rod assembly 6 is assembled, according to the parallelogram principle, when the film rolling mechanism is in a film rolling state, the length direction of the supporting rocker arm 15 is vertical to the length directions of the movable connecting rod 13 and the fixed connecting rod 14, and the distance between the movable connecting rod 13 and the axis of the driven shaft 504 is the largest at the moment; in the unloaded film roll state, by pulling the movable link 13 to one side, the angle between the support rocker 15 and the movable link 13 can be reduced, the distance between the movable link 13 and the axis of the driven shaft 504 can be reduced, and the film roll support diameter can be reduced. The fixed baffle 10 is fixed at one end of the film rolling mechanism, and the movable baffle 11 is fixed at the other end of the film rolling mechanism and can be opened. The inner side of the movable baffle 11 is provided with a fixing groove which can fix the movable connecting rod 13 of each connecting rod assembly 6 when the film roll supporting piece is at the maximum diameter.
As shown in fig. 8, a fixed support and a movable support 17 are arranged on the frame 1, the movable baffle 11 and the fixed baffle are located between the fixed support and the movable support 17, the lower end of the movable support 17 is rotatably connected with the frame 1, and the lower end of the fixed support is fixedly connected with the frame 1. The movable baffle 11 is fixedly connected with the upper end of the movable support 17, the movable support 17 is arranged to be capable of being switched between a supporting state and a laying state, and the rotating center line of the movable support 17 during rotation is parallel to the length direction of the rack 1. When the movable bracket 17 is in the supporting state, the movable bracket 17 and the fixed bracket jointly provide support for the driven shaft 504, and the driven shaft 504 is rotatably arranged on the fixed bracket and the movable bracket 17; the movable support 17 rotates towards the outer side of the film roll supporting piece, the movable support 17 drives the movable baffle plate 11 to synchronously rotate, the movable baffle plate 11 is far away from the film roll supporting piece, the movable support 17 is switched to the falling state from the supporting state, and then the movable connecting rod 13 can be pulled outwards to reduce the diameter of the film roll supporting piece, and finally the film roll can be taken down from the film roll supporting piece, so that the purpose of conveniently unloading the film is achieved. When the movable support 17 is in a supporting state, the movable support 17 is fixed on the rack 1 by using the fixing pin 12, the movable support 17 and the rack 1 are both provided with pin holes for inserting the fixing pin 12, and the fixing pin 12 is vertically arranged. When the movable support 17 needs to be switched to a laid-down state, the fixing pin 12 is firstly pulled out upwards, and then the movable support 17 can be rotated downwards, so that the operation is convenient and simple.
The driving mechanism 3 mainly includes a power source for providing source power, the power source is mounted on the frame 1, and a power output end of the power source is connected with the supporting shaft 503. The power source can take many forms and is preferably an internal combustion engine or an electric motor.
The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.
Claims (10)
1. The method for removing the mulching film of the crops is characterized in that a film removing machine is adopted, and the method comprises the following steps:
s1, turning the soil pressed above the mulching film out of the film surface by a film lifting and soil unloading piece of the film uncovering machine;
s2, applying a film rolling tension to the mulching film by a film rolling mechanism of the film uncovering machine, and rolling the mulching film;
the film winding mechanism is connected with the transmission mechanism, and the transmission mechanism is set to be capable of switching between a transmission state and an interruption state; in step S2, when the film uncovering resistance is greater than the set value, the transmission mechanism is switched from the transmission state to the interruption state, and the film winding mechanism stops rotating.
2. The method of claim 1, wherein the transmission mechanism comprises a driving end assembly and a driven end assembly, the film rolling mechanism is disposed on the driven end assembly, the driving end assembly comprises a supporting shaft, a driving wheel and a first friction plate rotatably disposed on the supporting shaft, a driving wheel and a second friction plate fixedly disposed on the supporting shaft, a pressure regulating member, and an elastic element disposed between the pressure regulating member and the first friction plate and configured to apply an elastic force to the first friction plate, the first friction plate and the second friction plate are disposed between the driving wheel and the driving wheel, and the set value is a friction plate generated after the first friction plate and the second friction plate contact.
3. The method as claimed in claim 2, wherein the elastic member is a cylindrical coil spring and a compression spring, and a through hole is formed at the center of the driving wheel for the elastic member to pass through.
4. The method for removing mulching film on crops as claimed in claim 2 or 3, wherein the pressure adjusting member is screwed with the supporting shaft.
5. A method as claimed in claim 2, 3 or 4, wherein the driven end assembly includes a driven shaft and a driven wheel mounted on the driven shaft, the driving wheel and the driven wheel are sprockets, and the transmission mechanism further includes a transmission chain engaged with the driving wheel and the driven wheel.
6. The method for removing mulching film on crops as claimed in any one of claims 1 to 5, wherein the film rolling mechanism comprises a fixed baffle, a movable baffle and a rotatably arranged film roll supporting member, the film roll supporting member is composed of a plurality of connecting rod assemblies, all the connecting rod assemblies are circumferentially distributed, and the diameter of the film roll supporting member is adjustable.
7. A method for removing mulching film from crops as claimed in claim 6, wherein the connecting rod assembly is a four-bar linkage mechanism, the connecting rod assembly comprises a fixed connecting rod, a movable connecting rod and a supporting rocker arm rotatably connected with the fixed connecting rod and the movable connecting rod, the length direction of the fixed connecting rod is parallel to that of the movable connecting rod, and the distance between the movable connecting rod and the axis of the film roll supporting member is greater than that between the movable connecting rod and the axis of the film roll supporting member.
8. The method as claimed in claim 7, wherein the roll support further comprises a support ring, all the connecting rods are distributed around the support ring, and the fixing connecting rods have a limiting groove for the support ring to be inserted into.
9. The method for removing mulching film on crops as claimed in claim 6, wherein the number of the connecting rod assemblies is four, and all the connecting rod assemblies are uniformly distributed along the circumferential direction.
10. A method for removing a mulching film from a crop as claimed in any one of claims 6 to 9, wherein the film removing device further comprises a frame, a fixed bracket and a movable bracket are provided on the frame, the movable barrier and the fixed barrier are located between the fixed bracket and the movable bracket, the lower end of the movable bracket is rotatably connected to the frame, and the movable barrier is detachably connected to the upper end of the movable bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110405069.2A CN112913552A (en) | 2021-04-15 | 2021-04-15 | Crop mulching film uncovering method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110405069.2A CN112913552A (en) | 2021-04-15 | 2021-04-15 | Crop mulching film uncovering method |
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| CN112913552A true CN112913552A (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110405069.2A Pending CN112913552A (en) | 2021-04-15 | 2021-04-15 | Crop mulching film uncovering method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114303756A (en) * | 2021-12-27 | 2022-04-12 | 朱冠羚 | Agricultural mulching film recycling device based on environmental protection |
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| CN210580291U (en) * | 2019-06-30 | 2020-05-22 | 西北农林科技大学 | Roll type mulching film recycling machine |
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| WO2020224062A1 (en) * | 2019-05-09 | 2020-11-12 | 山东省农业机械科学研究院 | Mulch residue collection machine employing elastic harrow teeth, and method of using same |
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| GB448521A (en) * | 1935-01-04 | 1936-06-10 | Hoe & Co R | Control mechanism for use with web rolls |
| WO2020224062A1 (en) * | 2019-05-09 | 2020-11-12 | 山东省农业机械科学研究院 | Mulch residue collection machine employing elastic harrow teeth, and method of using same |
| CN110140571A (en) * | 2019-06-26 | 2019-08-20 | 河南农业大学 | A kind of automatic film stripping machine |
| CN210580291U (en) * | 2019-06-30 | 2020-05-22 | 西北农林科技大学 | Roll type mulching film recycling machine |
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| CN114303756A (en) * | 2021-12-27 | 2022-04-12 | 朱冠羚 | Agricultural mulching film recycling device based on environmental protection |
| CN114303756B (en) * | 2021-12-27 | 2023-08-25 | 南京唐壹信息科技有限公司 | Agricultural plastic film recovery unit based on environmental protection |
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Application publication date: 20210608 |