Green manure crushing and field returning device

Abstract

The utility model relates to a kind of green manure crushing and returning to field device, belong to agricultural equipment technical field, including mobile car body, car body is sequentially assembled primary crushing mechanism, secondary crushing unit, rotary tillage unit along the direction of advance;Primary crushing mechanism, secondary crushing unit between are equipped with shovel plate feeding unit, and shovel plate is provided with leakage hole, and part of qualified grass and soil can be directly leaked to surface, and long grass section is retained and transported to secondary crushing roller and is crushed again;Secondary crushing roller both ends are equipped with pressing cam, cam is periodically pressed to the rear end connector of shovel plate with roller rotation, and cooperate torsional spring to realize the intermittent swing feeding of shovel plate.This device can complete grass pressing, primary crushing, screening and picking, secondary crushing and burying in one pass, solve the problem of multiple passes of existing machine, reduce the probability of grass winding around rotary tillage blade shaft, improve work efficiency, and adapt to orchard, vegetable garden and small plot operation.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural equipment technology, specifically relating to a green manure crushing and returning device. Background Technology

[0002] Green manure can effectively increase soil organic matter content and improve soil fertility. It is a commonly used crop for soil nourishment in agricultural production. However, the green manure return operation requires first crushing the green manure plants in the field and then turning them into the soil.

[0003] Current crushing and returning equipment is generally equipped with only single-stage crushing implements. A single strike is insufficient to fully crush tall green manure, leaving a large number of long grass segments on the surface after the operation. If rotary tillage is carried out directly, the long stems are very easy to get tangled in the rotary tiller shaft, which can easily lead to machine stalling and shutdown for cleaning. Farmers need to operate the implements back and forth two to three times for repeated crushing, which consumes time and energy.

[0004] Rotary tillage equipment lacks a pre-treatment structure for shredding grass, and upright green manure is directly rolled into the rotary shaft, making problems such as grass entanglement and material blockage more prominent, resulting in low operating efficiency. While integrated shredders paired with large tractors can complete the shredding and returning of the material to the field in one pass, their large size and long turning radius make them unsuitable for small plots of land such as orchards with narrow row spacing and scattered small vegetable gardens. Utility Model Content

[0005] Purpose of the utility model: To provide a green manure crushing and returning device to the field, so as to solve the above-mentioned problems existing in the prior art.

[0006] Technical Solution: This application provides a green manure crushing and returning device, including a mobile vehicle body, a front-mounted primary crushing mechanism arranged along the vehicle body's forward direction, and a rear-mounted rotary tillage unit. A secondary crushing mechanism is arranged between the primary crushing mechanism and the rotary tillage unit. The primary crushing mechanism, the secondary crushing mechanism, and the rotary tillage unit are all disposed at the bottom of the support plate of the mobile vehicle body; the secondary crushing mechanism includes:

[0007] The shovel feeding unit is configured at the rear end of the primary crushing mechanism via an inverted U-shaped mounting bracket;

[0008] The secondary crushing unit is located at the working rear end of the shovel feeding unit; among which,

[0009] The shovel of the shovel feeding unit is initially inclined. The front end of the working unit scoops up the primary crushing material accumulated at the rear end of the primary crushing mechanism from a low position. Connectors are provided on both sides of the rear end of the shovel. The connectors are rotatably configured with the lower front side of the two arm arms of the mounting frame via a torsion spring unit. The crushing roller of the secondary crushing unit is equipped with pressing cams at both ends corresponding to the connectors. When the pressing cams rotate with the crushing roller to the connector, they press the connector and disengage from it, causing the shovel to intermittently flip backward to feed material.

[0010] Furthermore, the working length of the shovel plate gradually decreases from front to back, and multiple perforations are arrayed on the shovel plate;

[0011] The working front end of the shovel is equipped with multiple shovel claws, which are spaced apart along the length of the working front end of the shovel.

[0012] The working rear end of the shovel plate forms a feeding port between the two connectors;

[0013] Guide side plates are provided on both sides of the upper working surface of the shovel plate along the edge contour.

[0014] Furthermore, the torsion spring unit includes a mounting block disposed at the lower front end of the two arms of the mounting frame; a support shaft disposed at the shovel plate connector, the support shaft extending into the mounting block and rotatably configured with the mounting block; and a torsion spring disposed on the support shaft and located within the mounting block.

[0015] Furthermore, the secondary crushing unit includes bearing seats disposed at a predetermined height position at the rear end of the two arms of the mounting frame; a crushing roller body disposed at a corresponding position at the rear end of the mounting frame via the bearing seats; and multiple secondary crushing cutter sets disposed on the crushing roller body; wherein,

[0016] One end of the crushing roller is connected to a secondary crushing motor, which provides rotational driving force to the crushing roller. The secondary crushing motor is mounted on the corresponding arm of the mounting frame via a mounting plate.

[0017] Furthermore, a protective cover is provided on the rear side of the mounting frame along the outline of the secondary crushing unit, and multiple sets of fixed blades are provided on the inner wall of the protective cover.

[0018] Furthermore, the primary crushing mechanism includes a crushing box disposed at the bottom front end of the support plate, the bottom of the crushing box being open, and the opening at the bottom of the crushing box being at a predetermined height from the vehicle's traveling plane; a crushing roller shaft rotatably disposed within the crushing box; and multiple sets of primary crushing blades disposed on the crushing roller shaft, with multiple sets of fixed blades disposed on the inner wall of the crushing box; wherein,

[0019] The crushing roller shaft is connected to a primary drive assembly, which provides rotational driving force to the crushing roller shaft.

[0020] Furthermore, the rotary tillage unit includes a support roller shaft configured at corresponding positions on the bottom of the support plate body via two mounting side plates; a plurality of crushing blades configured on the support roller shaft; the support roller shaft is connected to a rear-end drive assembly, and the rear-end drive assembly provides rotational driving force to the support roller shaft.

[0021] Furthermore, a drive housing is provided on the support plate, and a heat dissipation vent is provided around the drive housing. The primary drive assembly and the rear drive assembly are respectively disposed in the drive box, and a through slot is provided on the support plate for the transmission components of the aforementioned drive assembly to pass through.

[0022] Furthermore, the front end of the support plate is provided with a front horizontal baffle and a front stop bar; the front stop bar is a U-shaped multi-segment bent rod, and the front stop bar is located in front of the horizontal baffle. The horizontal baffle and the front stop bar are both arranged in front of the primary crushing mechanism.

[0023] Beneficial effects: This utility model relates to a green manure crushing and returning device. By setting a shovel feeding unit between the primary crushing mechanism and the secondary crushing unit, and cooperating with the cam self-driven intermittent feeding structure, the device can simultaneously complete the primary crushing of green manure, the screening and feeding of secondary crushing, the secondary crushing of long grass, and the shallow burial of soil during a single machine passage. This eliminates the need for multiple re-crushing operations, saving time and fuel consumption.

[0024] The perforations on the shovel plate can screen out fine green manure and soil, while retaining long grass segments that are not fully crushed and feeding them into the secondary crushing roller for further crushing, reducing the continuous wear of the secondary crushing blades by soil. The shovel plate is driven by the pressing cam on the secondary crushing roller to rotate slightly for feeding, without the need for additional independent power and transmission components. Guide side plates are set on both sides of the shovel plate to constrain the direction of the grass, reducing the risk of entanglement and blockage of the rotary tiller shaft. The overall structure is modularly arranged, making it suitable for green manure returning to the field in small plots such as orchards with narrow row spacing and scattered small vegetable gardens. Attached Figure Description

[0025] Figure 1 A schematic diagram of the overall structure of a green manure crushing and returning device;

[0026] Figure 2 A partial cross-sectional view of a green manure crushing and returning device;

[0027] Figure 3 A schematic diagram of the structure below the support plate of a green manure crushing and returning device;

[0028] Figure 4 for Figure 3 Enlarged view of part A;

[0029] Figure 5 A schematic diagram of the shovel structure of a green manure crushing and returning device;

[0030] Figure 6 This is a schematic diagram of the structure above the support plate of a green manure crushing and returning device.

[0031] The figures are labeled as follows: 1. Moving vehicle body; 2. Primary crushing mechanism; 3. Rotary tillage unit; 4. Shovel feeding unit; 5. Secondary crushing unit; 6. Shovel; 7. Connector; 8. Mounting frame; 9. Crushing roller body; 10. Pressing cam; 11. Leakage hole; 12. Guide side plate; 13. Mounting block; 14. Support shaft; 15. Bearing seat; 16. Secondary crushing cutter assembly; 17. Protective cover; 18. Crushing box; 19. Crushing roller shaft; 20. Primary crushing cutter assembly; 21. Primary drive assembly; 22. Secondary crushing motor; 23. Mounting plate; 24. Support roller shaft; 25. Crushing blade; 26. Rear drive assembly; 27. Drive housing; 28. Heat dissipation vent; 29. ​​Support plate body; 30. Shovel claw; 31. Horizontal baffle; 32. Front stop bar. Detailed Implementation

[0032] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0033] like Figure 1-6 The green manure crushing and returning device of this utility model mainly includes a mobile vehicle body 1, which consists of a support plate 29, wheels, and handles. A drive housing 27 is installed on the top of the support plate 29. Multiple heat dissipation vents 28 are opened on the side wall of the drive housing 27. The drive housing 27 houses a primary drive assembly 21 and a rear drive assembly 26. A through groove is opened on the support plate 29 for the chain, belt, and other transmission components to connect downward to the bottom working mechanism. A horizontal baffle 31 and a U-shaped front stop bar 32 are fixed at the front end of the support plate 29. During operation, the horizontal baffle 31 and the front stop bar 32 first press down the upright green manure plants, reducing the working load of the primary crushing mechanism 2 at the rear. The whole machine is assembled from front to back along the forward direction, consisting of the primary crushing mechanism 2, the secondary crushing mechanism, and the rotary tillage unit 3.

[0034] In some preferred embodiments, the primary crushing mechanism 2 is fixed at the bottom front end of the support plate 29, including a bottom-open crushing box 18, a rotatable crushing roller 19, and multiple sets of primary crushing blades 20. The crushing roller 19 is connected to the primary drive assembly 21 inside the drive housing 27. Multiple sets of fixed blades are fixed to the inner wall of the crushing box 18. A fixed clearance is reserved between the bottom of the crushing box 18 and the ground. During operation, only green manure above the ground surface is impacted, avoiding direct cutting of the soil by the blades and reducing the mixing of soil into the crushed material. After the green manure is sheared and impacted by the primary crushing blades 20 and the fixed blades inside the box, the chopped grass, long grass segments, and mixed soil all fall backward onto the shovel plate 6 and the ground.

[0035] In some preferred embodiments, the secondary crushing mechanism is located between the primary crushing mechanism 2 and the rotary tillage unit 3, and mainly includes an inverted U-shaped mounting frame 8, a shovel feeding unit 4, and a secondary crushing unit 5;

[0036] The shovel feeding unit 4 includes a shovel 6, a support shaft 14, a torsion spring unit, a guide side plate 12, and shovel claws 30. The shovel 6 has an overall inclined shape that is wider at the front and narrower at the back. The front end has multiple spaced shovel claws 30 integrally formed. As the vehicle moves forward, the shovel 6 can scoop up long grass and other debris scattered on the ground that has not been completely crushed by the primary crushing mechanism. The surface of the shovel 6 has several perforations 11. The perforations 11 have a predetermined aperture size. Small short grass and soil particles can pass directly through the perforations 11 and fall down to the top of the rotary tillage unit 3. Larger long grass pieces cannot pass through the perforations 11 and remain on the surface of the shovel 6 to be conveyed for further crushing.

[0037] Here, the material piled on the shovel plate 6 is partly the material that falls directly from the primary crushing at the front end; and partly the material that the shovel plate picks up from the front end as it moves with the vehicle body. At this time, as the vehicle body moves forward, the material at the front end of the shovel plate 6 pushes the material at the rear end backward, and the material at the rear end enters the secondary crushing operation area at the rear end of the shovel plate. During this process, some small materials and soil can fall through the holes 11 of the shovel plate 6, which can reduce the amount of soil entering the secondary crushing area and reduce the amount of material that does not need to be crushed in the secondary crushing operation area.

[0038] The rear ends of the shovel plate 6 are integrally formed with connectors 7 on both sides. The mounting bracket 8 has two fixed mounting blocks 13 on the lower side of the two arms. The support shaft 14 passes through the mounting block 13 and is fixed with the connectors 7. A torsion spring is mounted on the support shaft 14 to form a torsion spring unit. Under normal conditions, the torsion spring pulls the shovel plate 6 to maintain a forward tilted feeding posture. The left and right sides of the shovel plate 6 are vertically set with guide side plates 12 to prevent grass from escaping from the sides of the shovel plate and ensure that all long grass is gathered at the middle feeding port.

[0039] In this embodiment, preferably, the secondary crushing unit is assembled at the rear end of the inverted U-shaped mounting frame 8, the bearing seats 15 are fixed at both ends of the rear side of the mounting frame 8, the crushing roller body 9 is mounted at both ends inside the bearing seats 15, and multiple sets of secondary crushing blades 16 are arranged on the outer periphery of the crushing roller body 9; one end of the crushing roller body 9 is connected to the secondary crushing motor 22, and the secondary crushing motor 22 is fixed on the arm of the mounting frame 8 through the mounting plate 23;

[0040] It should be noted that pressing cams 10 are fixed at both ends of the crushing roller 9 and at the corresponding positions of the connecting heads 7 of the shovel plate 6. When the crushing roller 9 rotates continuously, the pressing cams 10 will periodically squeeze the connecting heads 7, overcoming the elastic force of the torsion spring to drive the rear end of the shovel plate 6 to press down and the front shovel claw 30 to lift up. The surface of the shovel plate 6 forms a slope that slides backward. Combined with the front feeding pushing the rear end, the material at the rear end enters the secondary crushing operation area. The long grass segments stuck on the plate surface slide along the plate surface and are fed into the protective cover 17 outside the crushing roller 9 from the feeding port in the middle of the connecting heads 7 on both sides. At the same time, the pressing cams cause vibration to the shovel plate, accelerating the falling and screening of fine materials and soil on the shovel plate 6.

[0041] Multiple sets of fixed blades are fixed on the inner wall of the protective cover 17. The long grass section is finely crushed in the secondary crushing blade set 16 in cooperation with the fixed blades of the protective cover. When the pressing cam 10 rotates past the connector 7, the torsion spring rebounds and pulls the shovel plate 6 to reset, realizing intermittent automatic feeding in a cycle.

[0042] In some preferred embodiments, the rotary tillage unit 3 is located at the rear end of the machine and consists of two mounting side plates, a support roller shaft 24, and multiple sets of crushing blades 25. The support roller shaft 24 is connected to the rear drive assembly 26 in the drive housing 27. The fine material that has passed through the sieve and the fine grass that has been crushed twice fall into the working area of ​​the rotary tillage unit 3. The support roller shaft 24 drives the crushing blades 25 to cut into the surface soil, turning the grass into the soil in a shallow layer, thus completing the whole process of returning green manure to the field.

[0043] In actual use, the operator pushes the mobile vehicle 1 forward, and the front horizontal baffle 31 and the front baffle 32 pre-press down the upright green manure; the primary drive component 21 drives the crushing roller 19 to rotate at high speed, and the green manure is initially crushed. The crushed mixture falls to the rear shovel 6 and the ground.

[0044] As the vehicle moves, some of the grass and other debris on the ground are scooped up from the front end of the shovel plate 6 and enter the shovel plate 6. Small grass and soil on the shovel plate 6 can fall to the ground through the hole 11. As the front end is intermittently lifted and the front material is pushed backward, it can be pushed into the secondary crushing area at the rear end.

[0045] In addition, when the secondary crushing motor 22 drives the crushing roller 9 to rotate continuously, the material remaining on the shovel plate 6 presses the connecting head 7 in a cyclical manner by pressing the cam 10, which drives the shovel plate 6 to rotate intermittently and slightly, sending materials such as long grass into the secondary crushing chamber for re-crushing.

[0046] After the final secondary crushing, the forage is turned into the soil by the rear rotary tillage unit. The entire machine can complete the entire process of pressing, primary crushing, screening and picking, secondary crushing, and turning into the field in a single pass.

[0047] In this application, it should be noted that the primary crushing blade assembly can adopt the conventional articulated L-type / Y-type throwing blade structure in the agricultural machinery field, which is a known prior art, and its shape, assembly method, and shearing principle are not modified.

[0048] The secondary crushing blade assembly adopts the same hammer claw and combined throwing blade structure as the industry standard. The moving blade is combined with the fixed blade fixed on the inner wall of the protective cover to crush together. The structure of the blade itself is a mature existing technology.

[0049] The shredder blade of the rotary tillage unit is a standard curved rotary tillage blade for agricultural machinery. The shape, arrangement, and soil turning principle of the blade are all existing known technologies. This utility model does not make any improvements to the rotary tillage blade itself.

[0050] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and detail may be made to the present invention without departing from the spirit and scope of the appended claims.

Claims

1. A green manure crushing and returning device, comprising a mobile vehicle body, a front-mounted primary crushing mechanism arranged along the vehicle body's forward direction, and a rear-mounted rotary tillage unit, characterized in that, A secondary crushing mechanism is provided between the primary crushing mechanism and the rotary tillage unit. The primary crushing mechanism, the secondary crushing mechanism, and the rotary tillage unit are all located at the bottom of the support plate of the mobile vehicle body. The secondary crushing mechanism includes: The shovel feeding unit is configured at the rear end of the primary crushing mechanism via an inverted U-shaped mounting bracket; The secondary crushing unit is located at the working rear end of the shovel feeding unit; among which, The shovel of the shovel feeding unit is initially inclined. The front end of the working unit scoops up the primary crushing material accumulated at the rear end of the primary crushing mechanism from a low position. Connectors are provided on both sides of the rear end of the shovel. The connectors are rotatably configured with the lower front side of the two arm arms of the mounting frame via a torsion spring unit. The crushing roller of the secondary crushing unit is equipped with pressing cams at both ends corresponding to the connectors. When the pressing cams rotate with the crushing roller to the connector, they press the connector and disengage from it, causing the shovel to intermittently flip backward to feed material.

2. The green manure crushing and returning device according to claim 1, characterized in that, The working length of the shovel plate gradually decreases from front to back, and the shovel plate is provided with multiple perforations in an array. The working front end of the shovel is equipped with multiple shovel claws, which are spaced apart along the length of the working front end of the shovel. The working rear end of the shovel plate forms a feeding port between the two connectors; Guide side plates are provided on both sides of the upper working surface of the shovel plate along the edge contour.

3. The green manure crushing and returning device according to claim 2, characterized in that, The torsion spring unit includes a mounting block disposed at the lower front end of the two arms of the mounting frame; a support shaft disposed at the shovel plate connector, the support shaft extending into the mounting block and rotatably configured with the mounting block; and a torsion spring disposed on the support shaft and located within the mounting block.

4. The green manure crushing and returning device according to claim 2, characterized in that, The secondary crushing unit includes bearing seats positioned at a predetermined height at the rear end of the two arms of the mounting frame; a crushing roller body positioned at a corresponding position at the rear end of the mounting frame via the bearing seats; and multiple sets of secondary crushing cutters mounted on the crushing roller body; wherein... One end of the crushing roller is connected to a secondary crushing motor, which provides rotational driving force to the crushing roller. The secondary crushing motor is mounted on the corresponding arm of the mounting frame via a mounting plate.

5. The green manure crushing and returning device according to claim 4, characterized in that, A protective cover is provided on the rear side of the mounting frame along the outline of the secondary crushing unit, and multiple sets of fixed blades are provided on the inner wall of the protective cover.

6. The green manure crushing and returning device according to claim 1, characterized in that, The primary crushing mechanism includes a crushing box disposed at the bottom front end of the support plate, the bottom of the crushing box being open, and the opening at the bottom of the crushing box being at a predetermined height from the vehicle's traveling plane; a crushing roller shaft rotatably disposed within the crushing box; and multiple sets of primary crushing blades disposed on the crushing roller shaft, with multiple sets of fixed blades disposed on the inner wall of the crushing box; wherein... The crushing roller shaft is connected to a primary drive assembly, which provides rotational driving force to the crushing roller shaft.

7. The green manure crushing and returning device according to claim 6, characterized in that, The rotary tillage unit includes a support roller shaft configured at corresponding positions on the bottom of the support plate body via two mounting side plates; a plurality of crushing blades configured on the support roller shaft; the support roller shaft is connected to a rear-end drive assembly, and the rear-end drive assembly provides rotational driving force to the support roller shaft.

8. The green manure crushing and returning device according to claim 7, characterized in that, A drive housing is provided on the support plate, and a heat dissipation vent is provided around the drive housing. The primary drive assembly and the rear drive assembly are respectively configured in the drive box, and a through slot is provided on the support plate for the transmission components of the drive assembly to pass through.

9. The green manure crushing and returning device according to claim 1, characterized in that, The front end of the support plate is provided with a front horizontal baffle and a front stop bar; the front stop bar is a U-shaped multi-segment bent bar, and the front stop bar is located in front of the horizontal baffle. The horizontal baffle and the front stop bar are both arranged in front of the primary crushing mechanism.

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