Straw row returning and field covering device

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a straw returning and covering returning device which comprises a bottom plate, and a first rotating shaft and a second rotating shaft are arranged at the bottom of the bottom plate. A first fixing ring and a second fixing ring are arranged at the bottom of the bottom plate, the first fixing ring and the second fixing ring are rotationally matched with the first rotating shaft and the second rotating shaft correspondingly, and a pre-cutting assembly is arranged on the first rotating shaft; a first driving part is arranged at the top of the bottom plate, and a re-cutting assembly is arranged on an output shaft of the first driving part; a third rotating shaft is arranged at the bottom of the bottom plate, a driving ring is arranged on the first rotating shaft, a belt is arranged on the driving ring, a driven ring is arranged on the third rotating shaft, the belt is in rolling connection with the driven ring, and a collecting assembly is arranged on the third rotating shaft; a conveying assembly is arranged on one side of the collecting assembly, and a covering assembly is arranged on one side of the bottom By means of the double cutting design of the pre-cutting assembly and the re-cutting assembly, it is guaranteed that straw is effectively cut off, straw cutting efficiency is improved, and cutting quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field, concretely relates to a straw returning covering and returning to field device. BACKGROUND

[0002] In agricultural production, straw treatment is an important link. The traditional straw treatment mode mainly includes burning, composting and returning to field, wherein the straw covering and returning to field mode is most widely applied. Popularizing straw covering and returning to field no-tillage conservation tillage can enhance the soil water storage and soil conservation capacity, improve the soil organic matter content, cultivate the soil fertility and improve the soil structure. The straw returning covering mode can also reduce the occurrence of weeds between crop rows, and has no influence on the emergence rate of crop seeding rows, improves the ground temperature and promotes the development and growth of crops.

[0003] However, the existing straw returning device has some problems in the straw crushing link, such as the length of crushed straw being too long, the qualified rate being substandard and the like, which leads to the slow decomposition speed of straw in the soil, influences the soil structure and crop growth, and part of the existing straw returning device also has the defects of large power consumption and inconvenient operation. Therefore, it is particularly important to design a simple and efficient straw returning device.

[0004] In summary, the existing straw returning device may have a substandard crushing effect when crushing straw, which influences the soil structure and crop growth, and this problem has become a difficult problem to be solved in the field, so it is necessary to propose a straw returning covering and returning to field device. SUMMARY

[0005] To solve the above problems, the utility model provides a straw returning covering and returning to field device, through the double cutting design of the pre-cutting assembly and the re-cutting assembly, it is ensured that the straw is effectively cut off, the straw cutting efficiency is improved, and the cutting quality is guaranteed.

[0006] In order to realize the above purpose, the technical scheme of the utility model is as follows: a straw returning covering and returning to field device, including the bottom plate, the bottom plate top is fixedly connected with the control box, the control box inner bottom wall is fixedly connected with the controller, the bottom plate one side is fixedly connected with the connecting piece, the bottom plate bottom is equipped with the first rotating shaft and the second rotating shaft, the first rotating shaft both ends and the second rotating shaft both ends are fixedly connected with the moving wheel, the bottom plate bottom is fixedly connected with the first fixed ring and the second fixed ring, the first fixed ring and the second fixed ring are respectively with the first rotating shaft and the second rotating shaft rotationally cooperate, the first rotating shaft is equipped with the pre-cutting assembly for cutting straw initially.

[0007] The bottom plate top is fixedly connected with the first drive, the input end of the first drive is electrically connected with the output end of the controller, the output shaft of the first drive extends to the bottom plate bottom and rotationally cooperates with the bottom plate, and the output shaft of the first drive is equipped with the re-cutting assembly for cutting straw again.

[0008] The bottom plate is fixedly connected with fixed rods at the bottom and symmetrically, adjacent fixed rods are rotationally connected with third rotation shafts, the first rotation shaft is fixedly connected with driving rings symmetrically, the driving rings are rotationally connected with belts, the third rotation shafts are fixedly connected with driven rings symmetrically, the belts are rotationally connected with the driven rings adjacent to the belts, and the third rotation shafts are provided with collecting assemblies for collecting straws.

[0009] The technical principle of the above scheme is as follows:

[0010] The worker connects the straw returning and covering and returning to the field device with an external machine, and drives the straw returning and covering and returning to the field device to move through the external machine. The first rotation shaft drives the driving ring to rotate in the rotating process, the driving ring drives the belt to rotate, the belt drives the driven ring to rotate, the driven ring drives the third rotation shaft to rotate, and the third rotation shaft drives the collecting assembly to rotate.

[0011] The above scheme has the following beneficial effects:

[0012] 1、The double cutting design of the pre-cutting assembly and the re-cutting assembly can realize multiple cutting of the straw, ensure that the straw is effectively cut, and the segmented cutting mode not only improves the cutting efficiency, but also ensures the cutting quality, which is beneficial to the subsequent collection operation of the collecting assembly.

[0013] 2、The design of the belt transmission and the collecting assembly can realize effective collection of the cut straw. The conveying assembly can convey the collected straw to the covering assembly to provide convenience for subsequent covering operation. The design of the collecting assembly not only reduces the loss and waste of the straw, but also improves the utilization rate of the straw.

[0014] 3、The setting of the covering assembly can realize uniform covering of the straw and ensure the returning to the field effect. Compared with the traditional manual covering, the mechanical covering mode not only saves time and effort, but also ensures the uniformity and quality of the covering. At the same time, the covered straw can provide organic matter and nutrients for the soil, which helps to improve the soil structure and increase the soil fertility.

[0015] Further, the pre-cutting assembly includes a plurality of V-shaped blades fixedly connected to the first rotating shaft at equal intervals.

[0016] Beneficial effects: The design of the V-shaped blades enables more efficient cutting of the straw during rotation. Due to the unique shape of the V-shaped blades, they can more easily cut into the straw, thereby reducing the energy and time required for cutting. This efficient cutting method helps to improve the overall efficiency of the device.

[0017] Further, the re-cutting assembly includes a rotating cutter disc coaxially fixedly connected to the output shaft of the first driving member, and a plurality of toothed blades are fixedly connected to the side wall of the rotating cutter disc in a circumferential direction.

[0018] Beneficial effects: The design of the toothed blades enables more precise cutting of the straw during rotation of the rotating cutter disc, which can more effectively cut into the straw, thereby improving the cutting effect.

[0019] Further, the collection assembly includes a collection rack fixedly connected to the third rotating shaft at equal intervals, and a plurality of collection rods are fixedly connected between adjacent collection racks at equal intervals, and a plurality of collection teeth are fixedly connected to the collection rods at equal intervals.

[0020] Beneficial effects: The combined design of the collection rack and the collection rod enables the collection assembly to form a continuous collection surface, effectively capturing and collecting the cut straw. Meanwhile, the addition of the collection teeth further enhances the collection effect, making it more difficult for the straw to escape, ensuring the efficiency of the collection.

[0021] Further, the conveying assembly includes a conveying box fixedly connected to the bottom of the bottom plate, and a guide cylinder is arranged in the conveying box, the guide cylinder is in sliding fit with the inner bottom wall of the conveying box, and elastic plates are fixedly connected to the inner side walls of the conveying box at equal intervals, the ends of the elastic plates away from the inner side walls of the conveying box are fixedly connected to the guide cylinder, telescopic members are fixedly connected to the inner side walls of the conveying box, the input ends of the telescopic members are electrically connected to the output ends of the controller, and the output shafts of the telescopic members are fixedly connected to the side walls of the guide cylinder.

[0022] A plurality of partitions are fixedly connected to the inner bottom wall of the conveying box, and the interior of the conveying box is sequentially divided into a conveying cavity, a gravity cavity, and a spiral cavity, the inner side walls of the conveying cavity are fixedly connected to a conveying belt, the input end of the conveying belt is electrically connected to the output end of the controller, the inner bottom wall of the spiral cavity is fixedly connected to a spiral conveyor, the input end of the spiral conveyor is electrically connected to the output end of the controller, the inner side walls of the gravity cavity are vertically slidably fitted with an inclined gravity sliding plate, the bottom of the gravity sliding plate is fixedly connected to a hinged block, the inner side walls of the gravity cavity are fixedly connected to a hinge shaft, the hinged block is in rotational fit with the hinge shaft, and the inner bottom wall of the gravity cavity is provided with an auxiliary assembly for assisting the sliding of the straw.

[0023] Beneficial effect: by the telescopic piece drive guide cylinder left and right movement, and cooperate with the structure design of conveying cavity, gravity cavity and spiral cavity, can realize the transportation mode adjustment of different humidity straw.

[0024] Further, the auxiliary assembly includes a blowing box fixedly connected to the side wall of the gravity cavity, a push-pull plate slidingly fitted in the inner wall of the blowing box, a push-pull rod fixedly connected to one side of the push-pull plate, the push-pull rod extending through the side wall of the blowing box to the outside of the blowing box and slidingly fitted with the side wall of the blowing box, a push-pull ring fixedly connected to the end of the push-pull rod away from the push-pull plate, and the push-pull ring slidingly connected to the bottom of the gravity slide plate.

[0025] The inner bottom wall of the gravity cavity is fixedly connected with a second driving member, the input end of the second driving member is electrically connected with the output end of the controller, the output shaft of the second driving member is coaxially fixedly connected with a connecting rod, the end of the connecting rod away from the output shaft of the second driving member is hingedly connected with a sliding block, and the sliding block is vertically slidingly fitted with the inner side wall of the push-pull ring.

[0026] The top of the blowing box is provided with a blowing port, the top of the blowing box is fixedly connected with an elastic block, and the end of the elastic block away from the blowing box is fixedly connected with one end of the gravity slide plate adjacent thereto.

[0027] Beneficial effect: the design of the blowing box enables the straw to receive additional blowing power under the action of gravity, thereby enabling the straw to slide more smoothly on the gravity slide plate. This design not only improves the conveying efficiency, but also reduces the jamming and accumulation of straw during the conveying process. At the same time, through the combined use of the push-pull plate, the push-pull rod and the push-pull ring, the shaking of the inclined gravity slide plate is realized, further reducing the accumulation of straw on the gravity slide plate.

[0028] Further, the covering assembly includes moving members fixedly connected to one side of the bottom plate in symmetry, the input ends of the moving members are electrically connected with the output ends of the controller, the side away from the bottom plate of the moving member is provided with a covering box, the covering box is fixedly connected with the output shaft of the moving member, the covering box is in communication with the gravity cavity, the conveying cavity and the spiral cavity, the inner side wall of the covering box is hingedly connected with fixed plates in symmetry, one of the fixed plates is hingedly connected with a jacking member at the bottom, the input end of the jacking member is electrically connected with the output end of the controller, the output shaft of the jacking member is hingedly connected with the bottom of the other fixed plate, the two side walls of the covering box are symmetrically provided with openings, the bottom of the covering box is fixedly connected with covering discs in symmetry, the inner side wall of the covering disc is fixedly connected with a plurality of guide plates, and the covering disc is located directly below the opening adjacent thereto.

[0029] Beneficial effect: through the communication design of the covering box with the gravity cavity, the conveying cavity and the spiral cavity, the covering assembly can efficiently receive and process the straw from these chambers. At the same time, the design of the moving member can realize the up and down movement of the covering box, and further realize the up and down movement of the covering disc. The design of the jacking member and the guide plate enables the inclination of the fixed plate to be changed by changing the included angle between the fixed plates, so that the straw falls onto different guide plates, realizing the adjustment of the covering position.

[0030] Further, an electromagnetic valve is connected in the guide cylinder, and an input end of the electromagnetic valve is electrically connected with an output end of the controller.

[0031] Beneficial effects: The opening and closing of the electromagnetic valve can be accurately controlled by the controller, so that the flow of the straw can be accurately controlled, thereby ensuring the stability of the straw during the switching of the transportation mode.

[0032] Further, the conveying box is arranged obliquely.

[0033] Beneficial effects: The obliquely arranged conveying box can utilize the action of natural gravity to help the straw be conveyed more smoothly from a high place to a low place. This design reduces the external power required during conveying, reduces energy consumption, and improves conveying efficiency.

[0034] Further, the cross-sectional shape of the bottom plate is a "H" shape.

[0035] Beneficial effects: The "H" shaped cross section has a large lateral support area, which can increase the stability of the entire structure. Under dynamic or static load, the "H" shaped cross section design can provide better anti-overturning and anti-sliding capacity, thereby improving the stability of the device.

[0036] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a perspective view of the embodiment of the straw returning and covering tillage device.

[0038] Figure 2 It is a bottom view of the embodiment of the straw returning and covering tillage device.

[0039] Figure 3 It is a side view of the embodiment of the straw returning and covering tillage device.

[0040] Figure 4 It is a top view of the conveying box in the embodiment of the straw returning and covering tillage device.

[0041] Figure 5 It is a side view of the gravity cavity in the embodiment of the straw returning and covering tillage device.

[0042] Figure 6 It is a side view of the covering box in the embodiment of the straw returning and covering tillage device.

[0043] The reference numerals in the drawings of the specification include: 1, bottom plate; 2, control box; 3, connecting piece; 4, first rotating shaft; 5, second rotating shaft; 6, moving wheel; 7, first fixing ring; 8, second fixing ring; 9, rotary cutting disc; 10, fixing rod; 11, third rotating shaft; 12, driving ring; 13, belt; 14, driven ring; 15, collecting rack; 16, collecting rod; 17, conveying box; 18, guiding cylinder; 19, elastic plate; 20, partition board; 21, conveyor belt; 22, screw conveyor; 23, gravity slide plate; 24, hinge block; 25, blowing box; 26, push-pull plate; 27, push-pull rod; 28, push-pull ring; 29, connecting rod; 30, sliding block; 31, elastic block; 32, covering box; 33, covering disc; 34, solenoid valve. Detailed implementation manners

[0044] The following is a further detailed description through specific implementation manners:

[0045] Embodiment 1:

[0046] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 : A straw alignment covering and returning device to the field includes a bottom plate 1 with a "冂"-shaped cross-section. The top of the bottom plate 1 is fixedly connected to a control box 2 by bolts. A controller is fixedly connected to the inner bottom wall of the control box 2 by screws. As shown in Figure 2 , a connecting piece 3 is integrally formed on the right side of the bottom plate 1. The bottom of the bottom plate 1 is provided with a first rotating shaft 4 and a second rotating shaft 5. Moving wheels 6 are fixedly connected to both ends of the first rotating shaft 4 and both ends of the second rotating shaft 5 by bolts; First fixing rings 7 and second fixing rings 8 are symmetrically integrally formed at the bottom of the bottom plate 1. The first fixing ring 7 and the second fixing ring 8 are respectively rotationally engaged with the first rotating shaft 4 and the second rotating shaft 5. A pre-cutting component for initially cutting straw is provided on the first rotating shaft 4. The pre-cutting component includes a plurality of V-shaped blades welded to the first rotating shaft 4 at equal intervals.

[0047] A first driving member is fixedly connected to the top of the bottom plate 1 by bolts. The input end of the first driving member is electrically connected to the output end of the controller. In this embodiment, the first driving member is a first stepping motor, and its model is preferably 57BYGH2825. The output shaft of the first stepping motor penetrates through the bottom plate 1 and extends to the bottom of the bottom plate 1 and is rotationally engaged with the bottom plate 1. A re-cutting component for re-cutting the straw is provided on the output shaft of the first stepping motor.

[0048] The re-cutting component includes a rotary cutting disc 9 fixedly connected to the output shaft of the first stepping motor coaxially by bolts. A plurality of toothed blades are welded to the side wall of the rotary cutting disc 9 along the circumferential direction.

[0049] The bottom of the base plate 1 has symmetrically integrally formed fixing rods 10. A third rotating shaft 11 is rotatably connected between adjacent fixing rods 10. A driving ring 12 is symmetrically welded onto the first rotating shaft 4, and each driving ring 12 is tactilely connected to a belt 13. A driven ring 14 is symmetrically welded onto the third rotating shaft 11, and each belt 13 is tactilely connected to its adjacent driven ring 14. A collection component for collecting straw is provided on the third rotating shaft 11. Figure 2 As shown, the left side of the collection component is provided with a conveying component for conveying straw, and the left side of the base plate 1 is provided with a covering component for covering the straw.

[0050] The collection assembly includes a collection frame 15 symmetrically welded to the third rotating shaft 11, and a number of collection rods 16 are welded at equal intervals between adjacent collection frames 15. Each collection rod 16 is welded with a number of collection teeth at equal intervals.

[0051] The conveying assembly includes a conveying box 17 bolted to the bottom of the base plate 1. A guide cylinder 18 is provided inside the conveying box 17. The guide cylinder 18 slides with the bottom wall of the conveying box 17. Elastic plates 19 are symmetrically bolted to the inner side wall of the conveying box 17. The ends of the elastic plates 19 away from the inner side wall of the conveying box 17 are bolted to the guide cylinder 18. A telescopic member is bolted to the inner side wall of the conveying box 17. The input end of the telescopic member is electrically connected to the output end of the controller. In this embodiment, the telescopic member is an electric telescopic rod, preferably model FY015. The output shaft of the electric telescopic rod is bolted to the side wall of the guide cylinder 18.

[0052] The bottom wall of the conveyor box 17 is welded with several partitions 20, which divide the interior of the conveyor box 17 into a conveying chamber, a gravity chamber and a spiral chamber in sequence. A conveyor belt 21 is bolted to the inner side wall of the conveying chamber. The input end of the conveyor belt 21 is electrically connected to the output end of the controller. In this embodiment, the model of the conveyor belt 21 is preferably MNPDJ240708. A spiral conveyor 22 is bolted to the bottom wall of the spiral chamber. The input end of the spiral conveyor 22 is electrically connected to the output end of the controller. In this embodiment, the model of the spiral conveyor 22 is preferably WLS200. A gravity slide plate 23 is vertically slidably fitted on the inner side wall of the gravity chamber. A hinge block 24 is integrally formed at the bottom of the gravity slide plate 23. A hinge shaft is welded to the inner side wall of the gravity chamber. The hinge block 24 and the hinge shaft are rotatably fitted. An auxiliary component for assisting the sliding of straw is provided on the bottom wall of the gravity chamber.

[0053] The auxiliary components include an air-blowing box 25 bolted to the side wall of the gravity chamber, and a push-pull plate 26 slidably fitted onto the inner wall of the air-blowing box 25. Figure 5 As shown, a push-pull rod 27 is welded to the left side of the push-pull plate 26. The push-pull rod 27 extends through the side wall of the air blowing box 25 to the outside of the air blowing box 25 and slides with the side wall of the air blowing box 25. A push-pull ring 28 is welded to the left end of the push-pull rod 27. The push-pull ring 28 is slidably connected to the bottom of the gravity slide plate 23.

[0054] A second driving component is bolted to the bottom wall of the gravity cavity. The input end of the second driving component is electrically connected to the output end of the controller. In this embodiment, the second driving component is a second stepper motor, preferably model 57BYGH2825. A connecting rod 29 is coaxially welded to the output shaft of the second stepper motor. Figure 5 As shown, a sliding block 30 is hinged to the right end of the connecting rod 29, and the sliding block 30 slides vertically with the inner wall of the push-pull ring 28.

[0055] The top of the air blowing box 25 has an air blowing port, and an elastic block 31 is fixedly glued to the top of the air blowing box 25. Figure 5 As shown, the top of the elastic block 31 is fixedly bonded to one end of the adjacent gravity sliding plate 23.

[0056] The covering assembly includes movable parts symmetrically bolted to one side of the base plate 1. The input ends of the movable parts are all electrically connected to the output ends of the controller. In this embodiment, the movable part is preferably a first electric cylinder, preferably an SFA80. Figure 3 As shown, a cover box 32 is provided on the left side of the first electric cylinder. The cover box 32 is bolted to the output shaft of the first electric cylinder. The cover box 32 is connected to the gravity chamber, the conveying chamber and the spiral chamber. Fixed plates are symmetrically hinged to the inner side wall of the cover box 32. A top actuator is hinged to the bottom of one of the fixed plates. The input end of the top actuator is electrically connected to the output end of the controller. In this embodiment, the top actuator is a second electric cylinder, preferably an SFA80. The output shaft of the second electric cylinder is hinged to the bottom of another fixed plate. Openings are symmetrically opened on both side walls of the cover box 32. A cover plate 33 is symmetrically fixed to the bottom of the cover box 32. Several guide plates are fixedly connected to the inner side wall of the cover plate 33. The cover plate 33 is located directly below the adjacent opening.

[0057] The specific implementation process is as follows: First, the worker connects the straw mulching and returning device to the external machine via connector 3. In this embodiment, the external machine is a tractor. When the tractor moves, it drives the straw mulching and returning device to move as well. At this time, the moving wheel 6 rotates, driving the first rotating shaft 4 to rotate. The first rotating shaft 4 drives the V-shaped blades to perform the first cut on the straw. The worker then starts the first stepper motor via the controller. The output shaft of the first stepper motor rotates, driving the rotating cutting disc 9 to rotate. The rotating cutting disc 9 drives the toothed blades to rotate, performing a second cut on the straw, further chopping it.

[0058] The first rotating shaft 4 drives the driving ring 12 to rotate in the rotating process, the driving ring 12 drives the belt 13 to rotate, the belt 13 drives the driven ring 14 to rotate, and the driven ring 14 drives the third rotating shaft 11 to rotate. The third rotating shaft 11 drives the collecting frame 15 to rotate in the rotating process, the collecting frame 15 drives the collecting rod 16 to rotate, and the collecting rod 16 drives the collecting tooth to rotate. The collecting tooth drives the chopped straw to be stirred into the conveying box 17 in the rotating process.

[0059] After the straw enters the conveying box 17, the worker controls the electric telescopic rod output shaft to be telescopic according to the dry and wet conditions of the straw, so that the guiding cylinder 18 is driven to move transversely, and the straw is conveyed to the conveying cavity, the gravity cavity or the spiral cavity.

[0060] When the humidity of the straw is low, the worker controls the guiding cylinder 18 to be communicated with the gravity cavity, and the straw is transported on the inclined gravity slide plate 23 by the gravity of the straw itself; when the straw has a certain humidity, the worker controls the guiding cylinder 18 to be communicated with the conveying cavity, and the transmission of the straw is realized by the conveying belt 21; when the humidity of the straw is high, the worker controls the guiding cylinder 18 to be communicated with the spiral cavity, and the conveying of the straw is realized by the spiral conveyor 22.

[0061] When the guiding cylinder 18 is communicated with the gravity cavity, the controller controls the second stepping motor output shaft to rotate, the second stepping motor output shaft drives the connecting rod 29 to rotate in the rotating process, the connecting rod 29 drives the sliding block 30 to slide up and down on the inner side wall of the push-pull ring 28, and the connecting rod 29 also drives the push-pull ring 28 to move left and right, so that the gravity slide plate 23 is jolted. When the straw presses the gravity slide plate 23 at the lower part of the gravity slide plate 23, the elastic block 31 can limit the gravity slide plate 23, so that the end of the gravity slide plate 23 pressed by the straw does not completely fall.

[0062] The push-pull ring 28 also drives the push-pull rod 27 to move left and right in the moving process, and the push-pull rod 27 drives the push-pull plate 26 to do piston motion in the air blowing box 25. The push-pull plate 26 generates air flow when doing piston motion, and the air flow blows the straw above the gravity slide plate 23 through the air outlet, further assisting the transportation of the straw.

[0063] After the straw is transported, it falls to the covering box 32, falls to the covering disc 33 under the guidance of the fixed plate, and is further guided by the guide plate in the covering disc 33, so that it falls to the predetermined position and completes the covering operation. During this period, the worker can adjust the extension and contraction of the first electric cylinder output shaft through the controller to realize the up and down movement of the covering box 32, and then adjust the height of the covering disc 33 welded with the bottom of the covering box 32; the worker adjusts the extension and contraction of the second electric cylinder output shaft through the controller to realize the adjustment of the inclination angle of the fixed plate, so that the straw can fall on different guide plates, thereby realizing the adjustment of the covering position.

[0064] The utility model discloses a double cutting design through pre -cutting subassembly and re -cutting subassembly, can realize the multiple cutting of straw, ensure that straw is effectively cut off, this segmented cutting mode not only improves cutting efficiency, also guarantees cutting quality, is favorable for the collection component of subsequent collection operation to the straw collection operation.

[0065] Example 2:

[0066] As shown in the accompanying Figure 4 Different from example 1, electromagnetic valve 34 is communicated in guide cylinder 18, and the input end of electromagnetic valve 34 is electrically connected with the output end of controller.

[0067] The specific implementation process is as follows: when the transportation mode of straw needs to be changed, the staff closes electromagnetic valve 34 through the controller, and then opens electromagnetic valve 34 after the movement of guide cylinder 18 is completed, which realizes the optimization of the transmission path of straw and effectively reduces the waste of straw.

[0068] Example 3:

[0069] As shown in the accompanying Figure 3 Different from example 2, conveying box 17 is arranged obliquely.

[0070] The specific implementation process is as follows: when the straw enters conveying box 17, the straw will slide in conveying box 17 under the action of its own gravity due to the oblique design of conveying box 17, which reduces the external power required in the conveying process, reduces energy consumption and improves transmission efficiency.

[0071] Obviously, the above examples are only examples for clearly illustrating, and not limit the implementation. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can be made. Here, it is not necessary and cannot be exhausted to all implementation. The obvious changes or variations derived from still be in the protection scope of the utility model.

Claims

1. A straw returning covering and returning to field device, it includes bottom plate (1), the top of bottom plate (1) is fixedly connected with control box (2), the inner bottom wall of control box (2) is fixedly connected with controller, one side of bottom plate (1) is fixedly connected with connecting piece (3), characterized in that, The bottom plate (1) is provided with a first rotating shaft (4) and a second rotating shaft (5) at the bottom; the two ends of the first rotating shaft (4) and the two ends of the second rotating shaft (5) are fixedly connected with a moving wheel (6); The bottom plate (1) is fixedly connected with a first fixed ring (7) and a second fixed ring (8) at the bottom in a symmetrical manner, and the first fixed ring (7) and the second fixed ring (8) are in rotational cooperation with the first rotating shaft (4) and the second rotating shaft (5) respectively; the first rotating shaft (4) is provided with a pre-cutting assembly for preliminarily cutting the straw; The top of the bottom plate (1) is fixedly connected with a first driving member, the input end of the first driving member is electrically connected with the output end of the controller, the output shaft of the first driving member extends through the bottom plate (1) to the bottom of the bottom plate (1) and is in rotational cooperation with the bottom plate (1), and the output shaft of the first driving member is provided with a re-cutting assembly for cutting the straw again; The bottom of the bottom plate (1) is fixedly connected with a fixed rod (10) in a symmetrical manner, and a third rotating shaft (11) is rotatably connected between adjacent fixed rods (10); the first rotating shaft (4) is fixedly connected with a driving ring (12) in a symmetrical manner, and the driving ring (12) is rotatably connected with a belt (13); the third rotating shaft (11) is fixedly connected with a driven ring (14) in a symmetrical manner, and the belt (13) is rotatably connected with the adjacent driven ring (14); The third rotating shaft (11) is provided with a collecting assembly for collecting the straw; One side of the collecting assembly is provided with a conveying assembly for conveying the straw; The side of the bottom plate (1) away from the connecting piece (3) is provided with a covering assembly for covering the straw.

2. The device according to claim 1, wherein, The pre-cutting assembly comprises a plurality of V-shaped blades fixedly connected to the first rotating shaft (4) at equal intervals.

3. The device according to claim 2, wherein, The re-cutting assembly comprises a rotary cutter disc (9) coaxially fixedly connected to the output shaft of the first driving member, and a plurality of toothed blades are fixedly connected to the rotary cutter disc (9) along the side wall in a circumferential direction.

4. The device according to claim 3, wherein, The collecting assembly comprises a collecting rack (15) fixedly connected to the third rotating shaft (11) in a symmetrical manner, a plurality of collecting rods (16) fixedly connected at equal intervals between adjacent collecting racks (15), and a plurality of collecting teeth fixedly connected at equal intervals to the collecting rods (16).

5. The device according to claim 4, wherein, The conveying assembly comprises a conveying box (17) fixedly connected to the bottom of the bottom plate (1); the conveying box (17) is provided with a guide cylinder (18) in sliding cooperation with the inner bottom wall of the conveying box (17); The inner side wall of the conveying box (17) is fixedly connected with a resilient plate (19) in a symmetrical manner, and the end of the resilient plate (19) away from the inner side wall of the conveying box (17) is fixedly connected with the guide cylinder (18); the inner side wall of the conveying box (17) is fixedly connected with an extension member, the input end of the extension member is electrically connected with the output end of the controller, and the output shaft of the extension member is fixedly connected with the side wall of the guide cylinder (18); The inner bottom wall of the conveying box (17) is fixedly connected with a plurality of partition plates (20), and the inner part of the conveying box (17) is sequentially divided into a conveying cavity, a gravity cavity and a spiral cavity by the partition plates (20); The inner side wall of the conveying cavity is fixedly connected with a conveying belt (21), and the input end of the conveying belt (21) is electrically connected with the output end of the controller; The inner bottom wall of the spiral cavity is fixedly connected with a spiral conveyor (22), and the input end of the spiral conveyor (22) is electrically connected with the output end of the controller; The gravity cavity inner side wall is vertically slidingly matched with a gravity sliding plate (23) arranged obliquely, and the gravity sliding plate (23) is fixedly connected with a hinged block (24) at the bottom.

6. The straw returning and covering device according to claim 5, characterized in that, The auxiliary assembly comprises a blowing box (25) fixedly connected to the gravity cavity side wall, the blowing box (25) is slidingly matched with a push-pull plate (26) on the inner wall, the push-pull plate (26) is fixedly connected with a push-pull rod (27) on one side, the push-pull rod (27) extends to the outside of the blowing box (25) through the blowing box (25) side wall and is slidingly matched with the blowing box (25) side wall; the end of the push-pull rod (27) away from the push-pull plate (26) is fixedly connected with a push-pull ring (28), and the push-pull ring (28) is slidingly connected with the bottom of the gravity sliding plate (23); The gravity cavity inner bottom wall is fixedly connected with a second driving member, and the input end of the second driving member is electrically connected with the output end of the controller; the output shaft of the second driving member is coaxially fixedly connected with a connecting rod (29), and the end of the connecting rod (29) away from the output shaft of the second driving member is hingedly connected with a sliding block (30), and the sliding block (30) is vertically slidingly matched with the inner side wall of the push-pull ring (28); The blowing box (25) top is provided with a blowing port, and the blowing box (25) top is fixedly connected with an elastic block (31), and the end of the elastic block (31) away from the blowing box (25) is fixedly connected with one end of the gravity sliding plate (23) adjacent thereto.

7. The device according to claim 6, wherein the device is characterized by: The covering assembly comprises moving members fixedly connected to one side of the bottom plate (1) in a symmetrical manner, and the input ends of the moving members are electrically connected with the output ends of the controller; The end of the moving member away from the bottom plate (1) is provided with a covering box (32), and the covering box (32) is fixedly connected with the moving member output shaft; the covering box (32) is in communication with the gravity cavity, the conveying cavity and the spiral cavity; The inner side wall of the covering box (32) is hingedly connected with fixed plates in a symmetrical manner, and the bottom of one of the fixed plates is hingedly connected with a jacking member, and the input end of the jacking member is electrically connected with the output end of the controller; the output shaft of the jacking member is hingedly connected with the bottom of the other fixed plate; The two side walls of the covering box (32) are symmetrically provided with openings, and the bottom of the covering box (32) is fixedly connected with covering discs (33) in a symmetrical manner, and the inner side wall of the covering disc (33) is fixedly connected with a plurality of guide plates, and the covering disc (33) is located directly below the opening adjacent thereto.

8. The straw returning and covering device according to claim 7, characterized in that, The inner side wall of the covering box (32) is hingedly connected with fixed plates in a symmetrical manner, and the bottom of one of the fixed plates is hingedly connected with a jacking member, and the input end of the jacking member is electrically connected with the output end of the controller; the output shaft of the jacking member is hingedly connected with the bottom of the other fixed plate; 9. The straw returning and covering device according to claim 8, characterized in that, The conveying box (17) is arranged obliquely.

10. The straw returning and covering device according to claim 9, characterized in that, The cross-sectional shape of the bottom plate (1) is "H" shaped.

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