Combined outward turning type covering device

Abstract

The utility model discloses a combined outward turning type covering device, which belongs to the technical field of agricultural machinery and comprises a main frame, the main frame is C-shaped, the bottom end of the main frame is hinged with a lower mounting frame through a pin shaft, two sides of the end part of the lower mounting frame are rotatably provided with circular discs, and the circular discs are arc-shaped and are turned outwards; and a pressure adjusting mechanism is arranged between the bottom of the lower mounting rack and the main rack. According to the utility model, through the design mode of outwards turning the disc, when the device moves along with machinery, the outwards turning disc only extrudes and gathers outwards turned soil inwards, and dry soil cannot be buckled into a groove, so that the soil humidity in contact with seeds is effectively maintained, and the germination rate is favorably improved; through a pressure adjusting mechanism composed of a shaft rod, an adjusting rod, an adjusting groove, a positioning block, a tension spring and a positioning hole, the force of pressing the disc into soil can be adjusted and controlled according to the condition of the soil in the using process, and the soil covering effect in the using process is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a soil cover, in particular to a combined outward turning soil cover belongs to agricultural machinery technical field. BACKGROUND

[0002] The soil cover is the key component of agricultural seeding machinery, is mainly used for soil covering to seed or fertilizer after sowing, creates stable temperature and humidity conditions for seed germination through uniform soil covering, protection seed and moderate compaction surface layer, its common type includes disc type, chain ring type, scraper type, elastic tooth type etc.

[0003] The prior art such as the utility model with the application number 202222547564. X discloses a soil cover for film mulching seeder, to solve the problem that the spacing between the two soil covering discs of the soil cover is not adjustable, when the size of the sown plant does not match the spacing between the two soil covering discs, mostly only the soil cover can be replaced, thereby leading to poor flexibility of the soil cover, by knob handle, handle drives rotating rod rotation, rotating rod drives second bevel gear rotation, second bevel gear drives first bevel gear rotation, first bevel gear drives connecting rod rotation. Two threaded rods of connecting rod rotation, two threaded rods drive two guide blocks along the inner wall of corresponding guide groove horizontal sliding, and because the screw rotation direction of two threaded rods is opposite, so two threaded rods can drive two guide blocks to be in the state of opposite motion or back motion. When two guide blocks move towards each other, two connecting plates can be driven to move towards each other, thereby the spacing of two soil covering discs is realized to be reduced and adjusted. When two guide blocks move away from each other, two connecting plates can be driven to move away from each other, thereby the spacing of two soil covering discs is realized to be expanded and adjusted, effectively improving the flexibility of the soil cover.

[0004] Similar to the above application, there are still some deficiencies:

[0005] The two groups of disc concave design of the soil cover, in the process of soil covering, adopts the wheel type extrusion inner buckle mode to cover soil, dry soil can be mixed into the groove, after dry soil or dry soil layer covers the seed, the soil humidity cannot be effectively maintained, leading to difficult seed water absorption, insufficient water for germination, and decreased germination rate. The depth of the disc insertion cannot be regulated according to the soil condition of the site during use, which affects the soil covering effect, and the ground cannot be guaranteed to be flat after soil covering, two rows of notches are left, the ground surface microtopography is changed, uneven water distribution is caused during rainfall, and seed growth is affected.

[0006] To solve the above problems, a combined out-flipping soil cover is designed. The utility model discloses

[0007] The utility model discloses a combined out-flipping soil cover which is used to solve the problems in the prior art.

[0008] The utility model discloses a combined out-flipping soil cover which is used to solve the problems in the prior art.

[0009] A combined out-flipping soil cover, comprising a main frame, the main frame is in the shape of C, a lower mounting frame is hingedly installed at the bottom end of the main frame through a pin shaft, disc-shaped plates are rotatably installed at both sides of the end of the lower mounting frame, the disc-shaped plates are arc-shaped and outwardly flipped, and a pressure adjusting mechanism is arranged between the bottom of the lower mounting frame and the main frame.

[0010] Preferably, an upper mounting frame is hingedly installed at the top end of the main frame through a pin shaft, and a pressure roller is rotatably installed at the bottom of the upper mounting frame.

[0011] Preferably, a torsional spring is arranged at the top of the upper mounting frame, the pin shaft passes through the torsional spring, the bottom end of the torsional spring is attached to the top of the upper mounting frame, and the top end of the torsional spring is attached to the inner top of the main frame.

[0012] Preferably, anti-skid grooves are evenly formed in the outer side of the disc-shaped plates in the circumferential direction, and a tungsten carbide coating is sprayed on the surface of the disc-shaped plates.

[0013] Preferably, the pressure adjusting mechanism comprises a shaft, an adjusting rod, an adjusting groove, positioning blocks and a tension spring, the shaft is rotatably installed at the inner end of the lower mounting frame, the adjusting rod is slidably arranged on the shaft in the length direction, the adjusting groove is formed in the top of the bottom end of the lower mounting frame, the positioning blocks are alternately arranged at both sides of the adjusting groove, the bottom end of the adjusting rod is fixed with the tension spring, and the other end of the tension spring is fixedly connected with the main frame.

[0014] Preferably, the adjusting rod is in the shape of L, a positioning hole is formed in the bottom end of the adjusting rod, and the end of the tension spring passes through the positioning hole.

[0015] Compared with the prior art, the utility model has the advantages of:

[0016] 1. The disc-shaped plates are outwardly flipped, so that the outwardly flipped soil is only pressed inward when the device moves with the machine, the dry soil is not buckled into the inside of the groove, the soil humidity in contact with the seeds is effectively maintained, and the germination rate is improved.

[0017] 2. The pressure adjusting mechanism comprising the shaft, the adjusting rod, the adjusting groove, the positioning blocks, the tension spring and the positioning hole can adjust and control the force with which the disc-shaped plates are pressed into the soil according to the soil condition during use, so that the soil covering effect during use is ensured.

[0018] 3. The utility model discloses a tail end hinged installation has upper mounting bracket in main frame, and the bottom of upper mounting bracket rotates the installation has pressure wheel, and utilizes torsion spring to improve the pressure of pressure wheel, so that the device can carry out leveling to the soil surface after covering soil, will not change the surface microtopography, guarantee the distribution of moisture even when raining. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the front view of the utility model;

[0020] Figure 2 It is the lower mounting bracket sectional view of the utility model;

[0021] Figure 3 It is the Figure 2 Enlarged view of A place in the middle;

[0022] Figure 4 It is torsion spring structure diagram of the utility model.

[0023] In the drawing: 1, main frame;

[0024] 2, lower mounting bracket;

[0025] 3, disc; 301, antiskid groove;

[0026] 4, pressure regulating mechanism; 401, shaft rod; 402, adjusting rod; 403, adjusting groove; 404, positioning block; 405, tension spring; 406, positioning hole;

[0027] 5, upper mounting bracket;

[0028] 6, pressure wheel;

[0029] 7, torsion spring. DETAILED DESCRIPTION

[0030] To make the purpose, technical scheme and advantage of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment.

[0031] Therefore, the following detailed description of the embodiment of the utility model is not intended to limit the scope of the claimed utility model, but only represents some embodiments of the utility model. Based on the embodiment in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0032] It should be noted that the embodiments and the features and technical solutions in the embodiments in the utility model can be combined with each other without conflict.

[0033] It should be noted that like reference numerals and letters refer to like items in the several views, and once an item is defined in one view, it need not be further defined and explained in subsequent views.

[0034] In the description of the utility model, it needs to explain, the term "upper", "lower" and so on indicate the orientation or position relationship is based on the orientation or position relationship shown in the drawing, or is the orientation or position relationship of the product of the invention when using commonly, or is the orientation or position relationship that the person skilled in the art commonly understands, these terms are only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a particular orientation, is constructed and operated with a particular orientation, therefore, it can not be understood as the limitation of the utility model.In addition, the terms "first", "second" and so on are only used for distinguishing description, and can not be understood as indicating or implying relative importance.

[0035] Embodiment 1

[0036] As Figure 1 , Figure 2 , Figure 3 And Figure 4 Indicated, the present embodiment proposes a combined outturn type coverer, including mainframe 1, the shape of mainframe 1 is C-shaped, the bottom end of mainframe 1 is hingedly installed with lower mounting bracket 2 through pin shaft, both sides of the end of lower mounting bracket 2 are rotatably installed with disc 3, and disc 3 is arc-shaped and outturn, and pressure adjusting mechanism 4 is arranged between the bottom of lower mounting bracket 2 and mainframe 1.

[0037] Before use, the outer side of mainframe 1 is bolted to the rack of no-tillage machine, in use, pressure adjusting mechanism 4 is regulated according to the dryness degree of soil, in the case that soil is seriously hardened or soil particles are larger, the downward pressure of lower mounting bracket 2 is increased, and vice versa, the downward pressure of lower mounting bracket 2 is reduced, to ensure that disc 3 can be fully pressed into the inside of soil, in the process that the device moves with machinery, disc 3 rotates at 30 ° angle of entry into soil, since disc 3 is designed as outturn type, in the process of rotating movement, disc 3 will apply a pushing force to soil, and the inside of the image trench on both sides of the trench is pushed and extruded into the trench, to cover the seed, and the phenomenon of clamping dry soil is not caused.

[0038] Embodiment 2

[0039] The scheme in embodiment 1 is further introduced in combination with specific working mode, and details are described as follows:

[0040] As Figure 1As shown, in a preferred embodiment, based on the above method, the top of the main frame 1 is further mounted with an upper mounting frame 5 by a pin hinge. The bottom of the upper mounting frame 5 is rotatably mounted with a pressure roller 6. The surface of the pressure roller 6 is provided with anti-slip texture. After the trench is covered, the trench will reappear in the area where the disc 3 has passed. At this time, the pressure roller 6 passes through the trench and can flatten the soil at the protrusion. The pressure roller 6 has a diameter of 200mm and a thickness of 50mm. The anti-slip texture on the surface is a spiral groove with a depth of 2mm and an adjacent thread spacing of 10mm, which ensures that the soil clods are broken without forming a hard shell during compaction. The pressure roller 6 lags behind the disc 3 by about 20cm and rolls on the surface of the soil cover. The torsion spring 7 provides continuous pressure to control the soil cover height error within ±2mm and ensure that the ground surface is flat.

[0041] like Figure 1 As shown, in a preferred embodiment, based on the above method, a torsion spring 7 is further provided on the top of the upper mounting bracket 5, and a pin passes through the torsion spring 7. The bottom end of the torsion spring 7 is in contact with the top of the upper mounting bracket 5, and the top end of the torsion spring 7 is in contact with the inner top of the main frame 1. The torsion spring 7 is made of 65Mn spring steel, with an initial preload of 50 N·m and a maximum torque of 100 N·m. Both ends are fixed to the boss on the inner top of the main frame 1 and the ear plate on the top of the upper mounting bracket 5, respectively. The downward pressure of the pressure roller 6 is controlled by adjusting the installation angle of the torsion spring 7.

[0042] like Figure 1 As shown, in a preferred embodiment, based on the above method, further, anti-slip grooves 301 are uniformly formed on the outer side of the disc 3 along the circumference. The surface of the disc 3 is coated with a tungsten carbide coating. The anti-slip grooves 301 are 3mm deep and 5mm wide, and are uniformly distributed along the outer circumference of the disc. This can effectively prevent clay adhesion and enhance soil thrust. The tungsten carbide coating is applied using a plasma spraying process. The coating thickness is 0.3-0.5mm, the microhardness is ≥1500HV, the bonding strength with the substrate is ≥50MPa, and the soil wear resistance life is increased by more than 3 times.

[0043] like Figure 2 As shown, in a preferred embodiment, based on the above method, the pressure regulating mechanism 4 further includes a shaft 401, an adjusting rod 402, an adjusting groove 403, a positioning block 404, and a tension spring 405. The shaft 401 is rotatably mounted on the inner end of the lower mounting frame 2. The adjusting rod 402 is slidably arranged on the shaft 401 along the length direction. The top of the bottom end of the lower mounting frame 2 is provided with an adjusting groove 403. Positioning blocks 404 are staggered on both sides of the adjusting groove 403. The bottom end of the adjusting rod 402 is fixed with a tension spring 405. The other end of the tension spring 405 is fixedly connected to the main frame 1.

[0044] In use, for the lower pressure adjustment of the lower mounting frame 2, hold the adjusting rod 402, control the adjusting rod 402 to slide along the length direction of the shaft rod 401, place the adjusting rod 402 at the middle position of the adjusting groove 403, then rotate the adjusting rod 402 around the shaft rod 401, the greater the rotation angle of the adjusting rod 402, the greater the pulling force of the tension spring 405, at this time, the greater the downward pressure of the lower mounting frame 2, after the adjusting rod 402 is rotated to the appropriate position, fix the adjusting rod 402 by the positioning block 404, stabilize the downward pressure of the lower mounting frame 2, and ensure the insertion effect of the disc 3.

[0045] As shown in Figure 3 the preferred embodiment, on the basis of the above mode, further, the adjusting rod 402 is L-shaped, the bottom end of the adjusting rod 402 is provided with a positioning hole 406, and the end of the tension spring 405 passes through the positioning hole 406, when the tension spring 405 is installed, the end of the tension spring 405 passes through the positioning hole 406, and the installation is more convenient.

[0046] Example 3

[0047] The schemes in examples 1 and 2 are further introduced in combination with specific working modes, and details are described below:

[0048] Before use, the outer side of the main frame 1 is bolted to the frame of the no-tillage machine, in use, the pressure adjustment mechanism 4 is adjusted according to the dryness degree of the soil, hold the adjusting rod 402, control the adjusting rod 402 to slide along the length direction of the shaft rod 401, place the adjusting rod 402 at the middle position of the adjusting groove 403, then rotate the adjusting rod 402 around the shaft rod 401, the greater the rotation angle of the adjusting rod 402, the greater the pulling force of the tension spring 405, at this time, the greater the downward pressure of the lower mounting frame 2, after the adjusting rod 402 is rotated to the appropriate position, fix the adjusting rod 402 by the positioning block 404, stabilize the downward pressure of the lower mounting frame 2, increase the downward pressure of the lower mounting frame 2 in the case of serious soil compaction or large soil particles, otherwise, reduce the downward pressure of the lower mounting frame 2, ensure the insertion effect of the disc 3, in the process of moving the device with the machine, the disc 3 will rotate first, because the disc 3 is designed as an outward turning type, therefore, in the process of rotating and moving, a pushing force is applied to the soil, the soil inside the trench on both sides of the trench is pushed and extruded into the trench, and the seed is covered, and the phenomenon of clamping dry soil does not occur, after the trench is covered, because the area passed by the disc 3 reappears a trench, at this time, the pressure wheel 6 passes through the trench, and the soil at the protruding position can be flattened.

[0049] The above merely illustrates the further embodiments of the present application, but the protection scope of the present application is not limited thereto, any skilled in the art can make equivalent substitutions or changes according to the technical scheme and concept of the present application within the disclosed scope, which all belong to the protection scope of the present application.

Claims

1. A combined outward-turning soil covering device, comprising a main frame (1), characterized in that: The main frame (1) is C-shaped. The bottom end of the main frame (1) is hinged to a lower mounting bracket (2) by a pin. Both sides of the lower mounting bracket (2) are rotatably mounted with discs (3), and the discs (3) are arc-shaped and fold outward. A pressure adjustment mechanism (4) is provided between the bottom of the lower mounting bracket (2) and the main frame (1).

2. The combined outward-turning soil covering device according to claim 1, characterized in that: The top of the main frame (1) is hinged with a pin to the upper mounting bracket (5), and the bottom of the upper mounting bracket (5) is rotatably mounted with a pressure roller (6), the surface of which is provided with anti-slip texture.

3. A combined outward-turning soil covering device according to claim 2, characterized in that: The top of the upper mounting bracket (5) is provided with a torsion spring (7), a pin passes through the torsion spring (7), the bottom end of the torsion spring (7) is in contact with the top of the upper mounting bracket (5), and the top end of the torsion spring (7) is in contact with the inner top of the main frame (1).

4. The combined outward-turning soil covering device according to claim 1, characterized in that: The outer side of the disc (3) is uniformly provided with anti-slip grooves (301) along the circumference, and the surface of the disc (3) is coated with tungsten carbide coating.

5. A combined outward-turning soil covering device according to claim 1, characterized in that: The pressure regulating mechanism (4) includes a shaft (401), an adjusting rod (402), an adjusting groove (403), a positioning block (404), and a tension spring (405). The shaft (401) is rotatably mounted on the inner end of the lower mounting frame (2). The adjusting rod (402) is slidably arranged on the shaft (401) along the length direction. The top of the bottom end of the lower mounting frame (2) is provided with an adjusting groove (403). Positioning blocks (404) are staggered on both sides of the adjusting groove (403). The bottom end of the adjusting rod (402) is fixed with a tension spring (405). The other end of the tension spring (405) is fixedly connected to the main frame (1).

6. A combined outward-turning soil covering device according to claim 5, characterized in that: The adjusting rod (402) is L-shaped, and a positioning hole (406) is provided at the bottom end of the adjusting rod (402). The end of the tension spring (405) passes through the positioning hole (406).

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