Ditching device and method for millet cultivation

Abstract

The invention relates to the field of agricultural machinery, in particular to a ditching device and method for foxtail millet cultivation, and aims to solve the problems that when ditching is performed on frozen soil, a cutting mode is adopted, so that a tool bit part is damaged, and when ditching is performed on the frozen soil, breaking treatment needs to be performed by utilizing brittleness existing in the hardness of the frozen soil; an existing ditcher is low in ditching efficiency due to the influence of hard soil blocks when used for ditching frozen soil, a tool bit can be damaged, and the service life of the ditcher is affected. The crushing conical cylinder and the ditching knife rest synchronously crush frozen soil and hard soil blocks, the limitation of traditional single action can be broken through by synchronously adopting the double effects of reciprocating motion of the knife head assembly and reciprocating stamping of the crushing conical cylinder, and the soil breaking efficiency is remarkably improved through the mechanical synergistic effect.

Description

Technical Field

[0001] The present invention relates to the field of agricultural machinery, and in particular to a furrowing device and method for millet cultivation. Background Art

[0002] Planting refers to plant cultivation, including the cultivation of various crops, trees, fruit trees, flowers, medicinal and ornamental plants, including grain crops, cash crops, vegetable crops, green manure crops, feed crops, forage, etc. In the process of cultivating millet, it is necessary to divide the cultivation land into zones and dig trenches to facilitate the management of millet cultivation. In cold areas and when sowing in early spring, it is necessary to deal with low temperatures or partial frozen soil conditions and dig trenches on the frozen soil. After digging, remove the unthawed soil blocks in the trench to ensure that the seeds are in contact with moist soil.

[0003] The following problems exist in the prior art and have not been well solved: the existing trenching machine uses a rotating cutter head to stir the soil to make trenches in the soil, and when trenching frozen soil, the cutting method will damage the cutter head. When trenching frozen soil, the brittleness of the frozen soil needs to be used for crushing. When trenching frozen soil, the existing trenching machine is affected by hard soil blocks, resulting in slow trenching efficiency and damage to the cutter head, which affects the service life of the equipment. Summary of the Invention

[0004] The object of the present invention is to provide a furrowing device and method for millet cultivation to solve the problems raised in the above-mentioned background technology. In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a furrowing device for millet cultivation, comprising a mounting bracket, the mounting bracket is set up on an external vehicle frame, the bottom of the mounting bracket is slidably connected to a load-bearing fixed cylinder, the top of the load-bearing fixed cylinder is connected to a rotating device, the end of the rotating device facing the furrowing is provided with a furrowing cutter head assembly, the rotating device controls the rotation of the cutter head assembly so that the cutter head assembly furrows the soil, the load-bearing fixed cylinder is also rotatably connected with a crushing assembly, the crushing assembly extends in the direction of the cutter head assembly, and the crushing assembly and the cutter head assembly are matched in transmission, the load-bearing fixed cylinder is provided with a clutch control member connected in transmission with the rotating device, the clutch control member is connected in transmission with the crushing assembly to control the crushing assembly to move in the direction of the cutter head assembly to crush the frozen soil at the cutter head in the soil.

[0005] Preferably, the rotating device includes a rotating motor fixedly connected to the top of the carrying and fixing cylinder, the main shaft of the rotating motor is connected to a rotating bevel gear, the inner wall of the carrying and fixing cylinder is rotatably connected to a rotating toothed disk, the end face of the rotating toothed disk is provided with a rotating bevel gear meshed with the rotating bevel gear, the end of the carrying and fixing cylinder toward the groove is rotatably connected to a rotating sleeve, a rotating toothed disk is provided on the inner wall of the rotating sleeve, a rotating rod is rotatably connected in the carrying and fixing cylinder, and transmission gears meshed with the rotating toothed disk and the rotating toothed disk are provided at both ends of the rotating rod, and a plurality of cutter head assemblies are provided, and the plurality of cutter head assemblies are evenly distributed around the circumference of the rotating sleeve.

[0006] Preferably, several cutter head assemblies include a support frame slidably arranged on the inner wall of the rotating sleeve, a grooving tool holder is hingedly connected to the support frame, a positioning rod is correspondingly connected to the support frame, a compression spring is sleeved on the positioning rod, and the two ends of the compression spring are respectively in contact with the positioning rod and the inner wall of the rotating sleeve, an arc groove is also provided on the grooving tool holder, and a positioning wheel inserted into the arc groove is provided on the inner wall of the rotating sleeve.

[0007] The cam is fixedly mounted on the support frame, and the outer wall of the cam is provided with an arc piece, and the arc piece and the opening form an annular slide rail. The inner wall of the cam is slidably connected to the movable rod, and the movable rod is slidably mounted on the support frame.

[0008] Preferably, the clutch control component includes a driving rod rotatably connected to the carrying fixed cylinder, the driving rod is fixedly connected to the driving disk, the main shaft of the rotating motor is connected to the rotating disk, a belt is provided between the driving disk and the rotating disk, the driving rod is fixedly connected to the active disk, the fixed frame is rotatably connected to the spline rod, the spline on the spline rod is slidingly connected to the clutch disk, the clutch disk and the active disk are frictionally connected, a card slot is provided on the clutch disk, a connecting spring is provided on the clutch disk, two ends of the connecting spring are respectively connected to the fixed frame and the bottom of the clutch disk, the fixed frame is also provided with a release member connected to the crushing assembly, and the release member is connected to the bottom of the clutch disk.

[0009] Preferably, a card plate is rotatably connected in the card slot, and the card plate is slidably connected to the fixed bracket. The card plate is provided with a pressure rod extending in the direction of the mounting bracket, and the end of the pressure rod is rotatably connected to the interference wheel, and a wedge-shaped block is fixedly connected to the mounting bracket, and the inclined surface of the wedge-shaped block abuts against the interference wheel, and a support rod is correspondingly fixedly connected to the outer wall of the mounting bracket, and the outer wall of the load-bearing fixed cylinder is slidably connected to the support rod, and pressure springs are respectively provided on the two support rods, and the two ends of the pressure spring are respectively connected to the load-bearing fixed cylinder and the mounting bracket.

[0010] Preferably, the release member includes a clamping rod fixedly connected to the bottom of the spline rod, the fixing frame is provided with an annular groove, and an annular spring sheet is provided in the groove, and a plurality of obliquely arranged embedding grooves are provided on the inner wall of the groove around its circumference, the end of the annular spring sheet is located in the embedding groove, and the center of the annular spring sheet is clamped and connected to the clamping rod, the end of the clamping rod is also connected to a connecting shaft, and the connecting end of the connecting shaft and the clamping rod is provided with a one-way bearing, the end of the connecting shaft away from the clamping rod is fixedly connected to a convex plate, and a convex groove is provided in the convex plate, the fixing frame is slidably connected to a movable frame, and a limiting wheel is provided on the movable frame extending in the direction of the convex groove, and the movable frame is rotatably connected to the end of the movable rod.

[0011] Preferably, the method for using the furrowing device for millet cultivation comprises the following steps:

[0012] S1: The rotating motor drives the rotating helical gear to rotate, and the rotating toothed disc rotates around the inner wall of the load-bearing fixed cylinder. The transmission gear at the end of the rotating rod drives the rotating toothed disc to rotate the rotating sleeve. Several cutter head assemblies arranged on the end surface of the rotating sleeve rotate to open grooves in the groove opening area;

[0013] S2: When trenching frozen soil and hard soil, the support frame slides on the rotating sleeve to drive the hinged trenching tool holder to move. During the movement of the arc groove, the positioning wheel restricts the trenching tool holder, causing the trenching tool holder to deflect. The trajectory of the trenching tool holder cutting into the frozen soil changes from vertical impact to oblique shear.

[0014] S3: The moving rod reciprocates in the hollow sleeve, and the crushing cone on the moving rod reciprocates and presses toward the frozen soil and hard soil blocks. The pulley moves in the annular slide rail in the hollow sleeve. The moving rod rotates during the reciprocating movement, and the rotation of the crushing cone generates a spiral tangential force.

[0015] S4: The annular groove on the moving rod drives the support frame on the several cutter head assemblies to move. When the load-bearing fixed cylinder stops, the crushing cone and the trenching cutter frame simultaneously crush the frozen soil and hard soil blocks;

[0016] S5: The mounting bracket and the load-bearing fixed cylinder are relatively displaced. The wedge-shaped stopper of the mounting bracket and the pressing contact wheel press the pressure rod downward, separating the clutch plate from the active plate. The release member at the bottom of the clutch plate drives the crushing assembly to crush the frozen soil and hard soil blocks.

[0017] S6: The active disc and the clutch disc are separated, the annular spring sheet contracts to drive the clamping rod to rotate in the opposite direction, and the clamping rod drives the connecting shaft to rotate. The convex disc drives the limiting wheel through the convex groove to make the movable frame move back and forth, so that the movable frame can drive the movable rod to make the crushing cone to punch and crush the frozen soil and hard soil blocks.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In the present invention, when the trenching tool holder is deflected, the trajectory of cutting into the frozen soil changes from vertical impact to oblique shear, which decomposes the compressive strength of the soil. The frozen soil is more likely to crack under the action of shear force, and the deflection design enables the trenching tool holder to slide and cut into the hard soil block instead of colliding vertically when contacting the hard soil block, which can reduce the risk of damage to the tip of the tool.

[0020] In the present invention, when the crushing cone drum punches and crushes the frozen soil and hard soil blocks, the conical block at its end rotates simultaneously when it contacts the frozen soil. The tip of the crushing cone drum generates local high-pressure stress during punching, which enables the frozen soil and hard soil blocks to be quickly crushed. When the crushing cone drum rotates, a spiral tangential force is generated, which converts the vertical compressive strength of the frozen soil into shear failure, thereby destroying the frozen soil and hard soil blocks at the trenching location, avoiding the influence of the frozen soil and hard soil blocks during the trenching process, which affects the progress of sowing construction.

[0021] In the present invention, the crushing cone and the trenching tool holder simultaneously crush the frozen soil and hard soil blocks. By synchronously adopting the dual effects of the reciprocating movement of the cutter head assembly and the reciprocating punching of the crushing cone, the limitations of the traditional single action can be broken, and the mechanical synergy effect can significantly improve the soil breaking efficiency.

[0022] In the present invention, the movable frame can drive the movable rod to enable the crushing cone to punch and crush the frozen soil and hard soil blocks. Through the instantaneous release of the release part, when encountering frozen soil and hard soil blocks, they can be quickly crushed. The release part can be automatically triggered when the resistance is too large to avoid overload. Direct cutting of frozen soil will accelerate the blunting of the cutter head. The frozen soil can be quickly crushed by the release part, which can reduce the burden on the cutter head and extend its replacement cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a sectional view of the three-dimensional structure of the present invention;

[0025] Figure 3 Schematic diagram of the local three-dimensional structure of the present invention Figure 1 ;

[0026] Figure 4 This is a cross-sectional view of the three-dimensional structure of the load-bearing fixed cylinder in the present invention. Figure 1 ;

[0027] Figure 5 This is a partial three-dimensional structure cutaway view of the present invention. Figure 1 ;

[0028] Figure 6 This is a partial three-dimensional structure cutaway view of the present invention. Figure 2 ;

[0029] Figure 7 It is a schematic diagram of the partial three-dimensional structure of the cutter head assembly and the crushing assembly in the present invention;

[0030] Figure 8 It is a schematic diagram of the partial three-dimensional structure of the cutter head assembly in the present invention;

[0031] Figure 9 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 2 ;

[0032] Figure 10 This is a schematic diagram of the three-dimensional structure of the crushing component in the present invention;

[0033] Figure 11 It is a schematic diagram of the three-dimensional structure of the load-bearing fixing cylinder and the mounting bracket in the present invention;

[0034] Figure 12 It is a side view of the load-bearing fixing cylinder and the mounting bracket in the present invention;

[0035] Figure 13 This is a cross-sectional view of the three-dimensional structure of the load-bearing fixed cylinder in the present invention. Figure 2 ;

[0036] Figure 14 Schematic diagram of the three-dimensional structure of the clutch control member and the release member in the present invention Figure 1 ;

[0037] Figure 15 This is a schematic diagram of the expanded structure of the clutch control component in the present invention;

[0038] Figure 16 Schematic diagram of the three-dimensional structure of the clutch control member and the release member in the present invention Figure 2 ;

[0039] Figure 17 It is a schematic diagram of the three-dimensional structure of the release member in the present invention.

[0040] In the figure: 1. Mounting bracket; 11. Load-bearing fixed cylinder; 2. Rotating device; 21. Rotating motor; 22. Rotating bevel gear; 23. Rotating toothed disc; 24. Rotating bevel gear; 25. Rotating sleeve; 26. Rotating toothed disc; 27. Rotating rod; 28. Transmission gear; 3. Cutter head assembly; 31. Support frame; 32. Grooving knife frame; 33. Positioning rod; 34. Compression spring; 35. Arc groove; 36. Positioning wheel; 4. Crushing assembly; 41. Fixed frame; 42. Hollow sleeve; 43. Arc plate; 44. Annular slide rail; 45. Moving rod; 46. Pulley; 47. Blocking plate; 48. Crushing cone; 4 9. Annular groove; 410. Connecting rod; 411. Card ball; 5. Clutch control component; 51. Driving rod; 52. Driving disk; 53. Rotating disk; 54. Belt; 55. Active disk; 56. Spline rod; 57. Clutch disk; 58. Card groove; 59. Connecting spring; 510. Card plate; 511. Pressure rod; 512. Interference wheel; 513. Wedge-shaped resistance block; 514. Support rod; 515. Pressure spring; 6. Release component; 61. Card rod; 62. Groove; 63. Embedded groove; 64. Annular spring sheet; 65. Connecting shaft; 66. Convex disk; 67. Convex groove; 68. Moving frame; 69. Limiting wheel. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0042] See also Figures 1 to 17The present invention provides a technical solution: a furrowing device for millet cultivation, comprising a mounting bracket 1, wherein the mounting bracket 1 is set up on an external vehicle frame, and the bottom of the mounting bracket 1 is slidably connected to a load-bearing fixed cylinder 11, and the top of the load-bearing fixed cylinder 11 is connected to a rotating device 2, and the end of the rotating device 2 facing the furrowing position is provided with a furrowing cutter head assembly 3, and the rotating device 2 controls the cutter head assembly 3 to rotate so that the cutter head assembly 3 furrows the soil, and the load-bearing fixed cylinder 11 is also rotatably connected with a crushing assembly 4, and the crushing assembly 4 extends toward the direction of the cutter head assembly 3, and the crushing assembly 4 and the cutter head assembly 3 are matched with each other in transmission, and the load-bearing fixed cylinder 11 is provided with a clutch control component 5 connected to the rotating device 2 in transmission, and the clutch control component 5 is connected to the crushing component 4 in transmission to control the crushing component 4 to move toward the direction of the cutter head assembly 3 to crush the frozen soil at the cutter head in the soil.

[0043] In this embodiment, the rotating device 2 includes a rotating motor 21 fixedly connected to the top of the carrying and fixing cylinder 11, the main shaft of the rotating motor 21 is connected to a rotating bevel gear 22, the inner wall of the carrying and fixing cylinder 11 is rotatably connected to a rotating toothed disc 23, the end surface of the rotating toothed disc 23 is provided with a rotating bevel gear 24 meshing with the rotating bevel gear 22, the end of the carrying and fixing cylinder 11 facing the groove is rotatably connected to a rotating sleeve 25, the inner wall of the rotating sleeve 25 is provided with a rotating toothed disc 26, the inside of the carrying and fixing cylinder 11 is rotatably connected to a rotating rod 27, and both ends of the rotating rod 27 are provided with transmission gears 28 meshing with the rotating toothed disc 23 and the rotating toothed disc 26 respectively, and the cutter head assembly 3 is provided with a plurality of them, and the plurality of cutter head assemblies 3 are evenly distributed around the circumference of the rotating sleeve 25;

[0044] When trenching the soil, the mounting bracket 1 is hingedly set on the vehicle frame, and the mounting bracket 1 is horizontally placed on the ground. The supporting fixed cylinder 11 is located at the initial end of the soil trenching. The rotating motor 21 rotates, and the rotating motor 21 drives the rotating bevel gear 22 to rotate. The rotating bevel gear 22 is engaged with the rotating bevel gear 24 to make the rotating gear disc 23 rotate around the inner wall of the supporting fixed cylinder 11. The transmission gears 28 at both ends of the rotating rod 27 are respectively engaged with the rotating gear disc 23 and the rotating gear disc 26. Then, when the rotating gear disc 23 rotates, it can synchronously drive the rotating gear disc 26 to rotate the rotating sleeve 25. The several cutter head assemblies 3 set on the end face of the rotating sleeve 25 will rotate in the trenching area.

[0045] In this embodiment, the plurality of cutter head assemblies 3 each include a support frame 31 slidably arranged on the inner wall of the rotating sleeve 25, a ditching blade holder 32 being hingedly connected to the support frame 31, a positioning rod 33 being correspondingly connected to the support frame 31, a compression spring 34 being sleeved on the positioning rod 33, and two ends of the compression spring 34 respectively abutting against the positioning rod 33 and the inner wall of the rotating sleeve 25, an arcuate groove 35 being further provided on the ditching blade holder 32, and a positioning wheel 36 being inserted into the arcuate groove 35 being provided on the inner wall of the rotating sleeve 25;

[0046] When the rotary sleeve 25 rotates, the several cutter head assemblies 3 arranged on the rotary sleeve 25 will perform rotary trenching on the soil. The cutter head assembly 3 set at the end of the rotary sleeve 25 can remove the roots and stems in the soil. When trenching frozen soil and hard soil blocks, the support frame 31 slides on the rotary sleeve 25. When the support frame 31 slides, it drives the hinged trenching tool holder 32 to move. The arc groove 35 provided on the trenching tool holder 32 is restricted by the positioning wheel 36 during the movement, which will cause the trenching tool holder 32 to deflect. When the trenching tool holder 32 deflects, the trajectory of cutting into the frozen soil changes from vertical impact to oblique shear, which decomposes the compressive strength of the soil. Frozen soil is more likely to crack under the action of shear force, and the deflection design enables the trenching tool holder 32 to slide and cut into hard soil blocks instead of vertically colliding when contacting hard soil blocks, which can reduce the risk of tip damage.

[0047] In this embodiment, the crushing assembly 4 includes a fixed frame 41 fixedly connected to the inner wall of the load-bearing fixed cylinder 11, a hollow sleeve 42 is fixedly connected to the fixed frame 41, an opening is provided on the outer wall of the hollow sleeve 42, an arc piece 43 is provided at the opening of the fixed frame 41, the arc piece 43 and the opening constitute an annular slide rail 44, a moving rod 45 is slidably connected to the inner wall of the hollow sleeve 42, and the moving rod 45 is provided with a pulley 46 facing the annular slide rail 44. Under the restriction of the annular slide rail 44 and the pulley 46, the moving rod 45 is reciprocally deflected during the movement in the hollow sleeve 42, and the outer wall of the hollow sleeve 42 is provided with an arc piece 43. A baffle 47 connected and deflected by a torsion spring is provided on the wall beside the annular slide rail 44. When the pulley 46 moves in the annular slide rail 44, it drives the moving rod 45 to deflect under the restriction of the baffle 47. The end of the moving rod 45 facing the end surface of the rotating sleeve 25 is provided with a crushing cone 48, and the moving rod 45 is elastically configured. The crushing cone 48 is located between the several cutter head assemblies 3. An annular groove 49 is also provided on the outer wall of the moving rod 45. The support frames 31 on the several cutter head assemblies 3 are all provided with a connecting rod 410 extending in the direction of the annular groove 49, and a card ball 411 is provided at the end of the connecting rod 410 facing the annular groove 49.

[0048] When the movable rod 45 moves back and forth in the hollow sleeve 42, the crushing cone 48 arranged on the movable rod 45 will punch back and forth in the direction of the frozen soil and hard soil blocks, and in the process of the reciprocating movement of the movable rod 45, the pulley 46 will move in the annular slide rail 44 in the hollow sleeve 42, thereby causing the movable rod 45 to rotate in the process of reciprocating movement. When the crushing cone 48 punches and crushes the frozen soil and hard soil blocks, the end conical block rotates at the same time when it contacts the frozen soil. The tip of the crushing cone 48 generates local high pressure stress during punching, which enables the frozen soil and hard soil blocks to be quickly crushed, and the crushing cone 48 generates a spiral tangential force when rotating, which converts the vertical compressive strength of the frozen soil into shear failure, thereby destroying the frozen soil and hard soil blocks at the ditching location, avoiding the influence of the frozen soil and hard soil blocks during the ditching process, which affects the progress of sowing construction;

[0049] During the movement of the moving rod 45, the annular groove 49 provided on the moving rod 45 will drive the support frame 31 on the several cutter head assemblies 3 to move. Then, when the supporting fixed cylinder 11 is affected by the influence of frozen soil and hard soil blocks and stagnates, the crushing cone cylinder 48 and the trenching tool holder 32 will simultaneously crush the frozen soil and hard soil blocks. By synchronously adopting the dual effects of the reciprocating movement of the cutter head assembly 3 and the reciprocating punching of the crushing cone cylinder 48, the limitation of the traditional single action can be broken through, and the mechanical synergy effect can significantly improve the earth-breaking efficiency.

[0050] In this embodiment, the clutch control component 5 includes a driving rod 51 rotatably connected to the carrying fixed cylinder 11, and a driving disk 52 is fixedly connected to the driving rod 51. A rotating disk 53 is connected to the main shaft of the rotating motor 21, and a belt 54 is provided between the driving disk 52 and the rotating disk 53. The driving rod 51 is fixedly connected to the active disk 55, and a spline rod 56 is rotatably connected to the fixed frame 41. A clutch disk 57 is splined and slidably connected to the spline rod 56. The clutch disk 57 and the active disk 55 are frictionally connected. A card slot 58 is provided on the clutch disk 57, and a connecting spring 59 is provided on the clutch disk 57. The two ends of the connecting spring 59 are respectively connected to the fixed frame 41 and the bottom of the clutch disk 57. The fixed frame 41 is also provided with a release member 6 that is transmission-connected to the crushing assembly 4, and the release member 6 is connected to the bottom of the clutch disk 57.

[0051] A card plate 510 is rotatably connected in the card slot 58, and the card plate 510 is slidably connected to the fixing frame 41. A pressure rod 511 is provided on the card plate 510 extending in the direction of the mounting bracket 1. The end of the pressure rod 511 is rotatably connected to the interference wheel 512. A wedge-shaped block 513 is fixedly connected to the mounting bracket 1, and the inclined surface of the wedge-shaped block 513 abuts against the interference wheel 512. A support rod 514 is correspondingly fixedly connected to the outer wall of the mounting bracket 1. The outer wall of the load-bearing fixed cylinder 11 is slidably connected to the support rod 514. A pressure spring 515 is sleeved on the two support rods 514. The two ends of the pressure spring 515 are respectively connected to the load-bearing fixed cylinder 11 and the mounting bracket 1;

[0052] When the rotating motor 21 rotates, the main shaft of the rotating motor 21 drives the rotating disk 53 to rotate, and the driving disk 52 is synchronously driven to rotate through the belt 54. The rotation of the driving disk 52 drives the driving rod 51 to rotate. Driven by the connecting spring 59, the active disk 55 and the clutch disk 57 are in a fit state. When the active disk 55 rotates, it can drive the clutch disk 57 to rotate synchronously. When encountering frozen soil and hard soil blocks, the load-bearing fixed cylinder 11 stops, and the frame pulls the mounting bracket 1 to continue moving. There is a relative displacement between the mounting bracket 1 and the load-bearing fixed cylinder 11. At this time, the two The pressure spring 515 on the support rod 514 contracts, and the wedge-shaped resistance block 513 on the mounting bracket 1 will contact the resistance wheel 512 at the top of the pressure rod 511, so that the resistance wheel 512 drives the pressure rod 511 to press down, and the pressure rod 511 drives the clamping plate 510 to move downward. At this time, the clutch disc 57 will be separated from the active disc 55, and the active disc 55 will not be able to drive the clutch disc 57 to continue rotating. When the clutch disc 57 is separated from the active disc 55, the release part 6 at the bottom of the clutch disc 57 can drive the crushing assembly 4 to crush the frozen soil and hard soil blocks.

[0053] The cam 64 is provided with a plurality of grooves 63 which are arranged obliquely around the circumference of the groove 62. The end of the cam 64 is located in the groove 63, and the center of the cam 64 is connected to the cam 61. The end of the cam 61 is also connected to a connecting shaft 65. The connecting shaft 65 and the connecting rod 61 are connected at a one-way bearing. The end of the connecting shaft 65 away from the connecting rod 61 is fixedly connected to a flange 66, and a flange 67 is provided in the flange 66. The fixing frame 41 is slidably connected to a movable frame 68. The movable frame 68 is provided with a limiting wheel 69 extending in the direction of the flange 67. The movable frame 68 is rotatably connected to the end of the movable rod 45.

[0054] When the active disc 55 drives the clutch disc 57 to rotate, the clamping rod 61 connected to the bottom of the spline rod 56 drives the annular spring piece 64 to expand. The end of the annular spring piece 64 is located in the embedded groove 63 on the inner wall of the groove 62 to limit the annular spring piece 64. When the annular spring piece 64 expands to its maximum value under the drive of the clamping rod 61, the end of the annular spring piece 64 moves from the corresponding embedded groove 63 to the next adjacent embedded groove 63. The embedded grooves 63 are arranged obliquely so that the annular spring piece 64 under pressure can move to the next set of embedded grooves 63 without overloading the annular spring piece 64 and causing damage. At this time, the clamping rod 61 rotates, and the one-way bearing at the end of the connecting shaft 65 does not cause the cam 66 to rotate.

[0055] When the active disc 55 and the clutch disc 57 are separated by the influence of frozen soil and hard soil blocks, the annular spring sheet 64 under pressure will shrink and rotate in the opposite direction. At this time, the annular spring sheet 64 will drive the clamping rod 61 to rotate in the opposite direction. When the clamping rod 61 rotates in the opposite direction, the clamping rod 61 will drive the connecting shaft 65 to rotate. At this time, the connecting shaft 65 will drive the cam 66 to rotate. The cam 66 drives the limiting wheel 69 through the provided cam groove 67 to make the movable frame 68 move back and forth, thereby enabling the movable frame 68 to drive the movable rod 45 to make the crushing cone 48 punch and crush the frozen soil and hard soil blocks. Through the instantaneous release of the release member 6, when encountering frozen soil and hard soil blocks, they can be quickly crushed. The release member 6 can be automatically triggered when the resistance is too large to avoid overload. Direct cutting of frozen soil will accelerate the blunting of the cutter head. Quickly crushing the frozen soil through the release member 6 can reduce the burden on the cutter head and extend its replacement cycle.

[0056] The use method and advantages of the present invention: The use method of the furrowing device for millet cultivation, the working process is as follows:

[0057] like Figures 1 to 17 As shown:

[0058] S1: The rotating motor 21 drives the rotating bevel gear 22 to rotate, and the rotating toothed disc 23 rotates around the inner wall of the load-bearing fixed cylinder 11. The transmission gear 28 at the end of the rotating rod 27 drives the rotating toothed disc 26 to rotate the rotating sleeve 25. The plurality of cutter head assemblies 3 provided on the end surface of the rotating sleeve 25 rotate to open grooves in the groove opening area;

[0059] S2: When trenching frozen soil and hard soil, the support frame 31 slides on the rotating sleeve 25 to drive the hinged trenching tool holder 32 to move. During the movement of the arc groove 35, it is restricted by the positioning wheel 36, causing the trenching tool holder 32 to deflect. The trajectory of the trenching tool holder 32 cutting into the frozen soil changes from vertical impact to oblique shear.

[0060] S3: The moving rod 45 reciprocates in the hollow sleeve 42, and the crushing cone 48 on the moving rod 45 reciprocates and presses toward the frozen soil and hard soil blocks. The pulley 46 moves in the annular slide rail 44 in the hollow sleeve 42. The moving rod 45 rotates during the reciprocating movement, and the crushing cone 48 generates a spiral tangential force when it rotates.

[0061] S4: The annular groove 49 on the moving rod 45 drives the support frame 31 on the plurality of cutter head assemblies 3 to move. When the supporting fixed cylinder 11 stops, the crushing cone 48 and the trenching cutter frame 32 simultaneously crush the frozen soil and hard soil blocks.

[0062] S5: The mounting bracket 1 and the supporting fixed cylinder 11 are relatively displaced. The wedge-shaped stopper 513 of the mounting bracket 1 and the pressing contact wheel 512 press the pressure rod 511 downward, separating the clutch disc 57 from the active disc 55. The release member 6 at the bottom of the clutch disc 57 drives the crushing assembly 4 to crush the frozen soil and hard soil blocks.

[0063] S6: The active disc 55 and the clutch disc 57 are separated, the annular spring sheet 64 contracts to drive the clamping rod 61 to rotate in the opposite direction, and the clamping rod 61 drives the connecting shaft 65 to rotate. The convex disc 66 drives the limiting wheel 69 through the provided convex groove 67 to make the movable frame 68 move back and forth, so that the movable frame 68 can drive the movable rod 45 to make the crushing cone 48 punch and crush the frozen soil and hard soil blocks.

[0064] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A furrowing device for millet cultivation, comprising: A mounting bracket (1) is provided on the external vehicle frame; A load-bearing fixing cylinder (11) is slidably connected to the bottom of the mounting bracket (1); It is characterized by: A rotating device (2) is connected to the top of the supporting fixed cylinder (11), and a plurality of cutter head assemblies (3) are arranged distributed around the rotating device at the end of the rotating device (2); A crushing assembly (4) is rotatably arranged in the bearing fixed cylinder (11), and the crushing assembly (4) is transmission-connected to the cutter head assembly (3); The clutch control component (5) is arranged in the bearing fixed cylinder (11) and is transmission-connected to the rotating device (2) and the crushing assembly (4), and is used to control the crushing assembly (4) to crush the frozen soil when trenching is blocked.

2. A furrowing device for millet cultivation according to claim 1, characterized in that: The rotating device (2) comprises: A rotating motor (21) is connected to the top of the load-bearing fixed cylinder (11); A rotating helical gear (22) connected to the main shaft of the rotating motor (21); A rotating toothed disc (23) is rotatably connected to the inner wall of the load-bearing fixed cylinder (11); The rotating bevel gear (24) is arranged on the end surface of the rotating toothed disc (23) and meshes with the rotating bevel gear (22).

3. A furrowing device for millet cultivation according to claim 2, characterized in that: The rotating device (2) further comprises: A rotating sleeve (25) is rotatably connected to the load-bearing fixed cylinder (11); A rotating toothed disc (26) is provided on the inner wall of the rotating sleeve (25); The rotating rod (27) has two ends which are respectively engaged with the rotating toothed disc (23) and the rotating toothed disc (26) through the transmission gear (28) to synchronously drive the rotating sleeve (25) to rotate.

4. A furrowing device for millet cultivation according to claim 3, characterized in that: The cutter head assembly (3) comprises: A support frame (31) is slidably mounted on the inner wall of the rotating sleeve (25); A ditching tool holder (32) is hinged to the support frame (31) and has an arc groove (35) formed on its surface; The positioning wheel (36) is arranged on the inner wall of the rotating sleeve (25) and inserted into the arc groove (35), and is used for controlling the deflection angle of the trenching tool holder (32).

5. A furrowing device for millet cultivation according to claim 4, characterized in that: The crushing assembly (4) comprises: A fixing frame (41) is fixedly connected to the inner wall of the load-bearing fixing cylinder (11); A movable rod (45) is slidably connected to the fixed frame (41); A crushing cone (48) is connected to one end of the moving rod (45) facing the cutter head assembly (3); A hollow sleeve (42) is provided on the fixing frame (41), and an annular slide rail (44) is provided on the outer wall of the hollow sleeve; A pulley (46) is provided on the moving rod (45) and cooperates with the annular slide rail (44) to enable the moving rod (45) to rotate synchronously when the moving rod (45) moves back and forth; One end of the connecting rod (410) is connected to the support frame (31), and the other end is slidably matched with the annular groove (49) of the moving rod (45) through the clamping ball (411).

6. A furrowing device for millet cultivation according to claim 5, characterized in that: The clutch control member (5) comprises: A driving disc (52), the driving disc (52) is connected to the bearing fixed cylinder (11) through a driving rod (51); A rotating disk (53) is connected to the main shaft of the rotating motor (21); A belt (54) is sleeved between the driving disc (52) and the rotating disc (53); A driving disk (55) is connected to the driving rod (51); A clutch disc (57), the clutch disc (57) is connected to the fixed frame (41) through a spline rod (56); The clutch disc (57) is frictionally connected to the driving disc (55); A clamping groove (58) is provided on the outer wall of the clutch disc (57), and a clamping plate (510) is rotatably connected in the clamping groove (58); a pressure rod (511) has one end connected to the clamping plate (510) and the other end engaged with a wedge-shaped block (513) on the mounting bracket (1) through a contact wheel (512).

7. A furrowing device for millet cultivation according to claim 6, characterized in that: The clutch control member (5) further comprises a release member (6), wherein the release member (6) comprises: A clamping rod (61) is connected to the bottom of the spline rod (56), and the bottom of the clamping rod (61) is clamped and connected with an annular spring sheet (64); An embedded groove (63) is obliquely arranged on the inner wall of the groove (62) of the fixing frame (41) and is used to limit the expansion displacement of the annular spring piece (64); The convex disc (66) is connected to the clamping rod (61) through the connecting shaft (65), and its convex groove (67) cooperates with the limiting wheel (69) of the moving frame (68) to drive the moving rod (45) to punch back and forth.

8. A furrowing device for millet cultivation according to claim 7, characterized in that: A one-way bearing is provided between the connecting shaft (65) and the clamping rod (61), so that the connecting shaft (65) can only drive the flange (66) to rotate in one direction.

9. A method for using a furrowing device for millet cultivation, using the furrowing device for millet cultivation according to any one of claims 1 to 8, characterized in that: The steps include: S1: The rotating motor (21) drives the rotating bevel gear (22) to rotate, and the rotating toothed disc (23) rotates around the inner wall of the bearing fixed cylinder (11). The transmission gear (28) at the end of the rotating rod (27) drives the rotating toothed disc (26) to rotate the rotating sleeve (25). The plurality of cutter head assemblies (3) provided on the end surface of the rotating sleeve (25) rotate to open grooves in the groove opening area. S2: When trenching frozen soil and hard soil blocks, the support frame (31) slides on the rotating sleeve (25) to drive the hinged trenching tool holder (32) to move. During the movement, the arc groove (35) is restricted by the positioning wheel (36) to cause the trenching tool holder (32) to deflect. The trajectory of the trenching tool holder (32) cutting into the frozen soil changes from vertical impact to oblique shearing. S3: The moving rod (45) moves back and forth in the hollow sleeve (42), and the crushing cone (48) on the moving rod (45) presses back and forth toward the frozen soil and the hard soil block. The pulley (46) moves in the annular slide rail (44) in the hollow sleeve (42). The moving rod (45) rotates during the reciprocating movement, and a spiral tangential force is generated when the crushing cone (48) rotates. S4: The annular groove (49) on the moving rod (45) drives the support frame (31) on the plurality of cutter head assemblies (3) to move. When the bearing fixed cylinder (11) stops, the crushing cone (48) and the trenching cutter frame (32) both simultaneously crush the frozen soil and hard soil blocks. S5: The mounting bracket (1) and the bearing fixing cylinder (11) are relatively displaced, the wedge-shaped stopper (513) of the mounting bracket (1) and the pressing contact wheel (512) press the pressure rod (511) downward, the clutch disc (57) and the active disc (55) are separated, and the release member (6) at the bottom of the clutch disc (57) drives the crushing assembly (4) to crush the frozen soil and hard soil blocks; S6: The driving disc (55) and the clutch disc (57) are separated, the annular spring sheet (64) contracts and drives the clamping rod (61) to rotate in the opposite direction, and the clamping rod (61) drives the connecting shaft (65) to rotate, and the convex disc (66) drives the limiting wheel (69) through the provided convex groove (67) to make the moving frame (68) move back and forth, thereby making the moving frame (68) drive the moving rod (45) to make the crushing cone (48) punch and crush the frozen soil and hard soil blocks.

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