CN115250662A - An active and passive profiling and precise control combined operation seeder - Google Patents

Abstract

The invention discloses an active and passive profiling precision control combined operation seeder, which comprises a rack, wherein a rotary cultivator, an adjustable double-disc ditching device and a compression roller are sequentially arranged below the rack from front to back, the adjustable double-disc ditching device comprises a double-disc ditching device mounting frame, a double-disc ditching device, a supporting column, a rotating sleeve, a mounting frame connecting plate, a hydraulic rod mounting seat, a hydraulic rod and a mounting frame connecting rod, and a land wheel detection assembly controls the hydraulic rod to drive the adjustable double-disc ditching device according to the height of the ground so that the adjustable double-disc ditching device is parallel to the ground. Adjustable two disc ditching devices are under the flexible control of hydraulic stem, when meetting the ground of slope, but automatically regulated makes the ground of whole adjustable two disc ditching devices adaptation slope for the depth of planting is more unified, does benefit to the seed and grows, and the land wheel determine module who sets up moreover detects the slope on ground in whole device working process, and is real-time, high-efficient, excellent in use effect.

Description

A joint operation seeder with active and passive profiling sowing depth precise control

technical field

The invention belongs to the technical field of integrated seeders, in particular to an active and passive profiling sowing depth precision control joint operation seeder.

Background technique

When sowing crops, the soil is generally loosened and sorted with a rotary tiller, and then fertilized and seeded with a fertilizer applicator and a seeder. Due to the single function of these machines, most of the rotary tillage, fertilization, and sowing operations are carried out separately, which not only wastes time, but also causes many times of machine entry, compacts the soil, damages crops, and increases operating costs. In the industry, an integrated seeder that can complete sowing and fertilization at one time has been adopted. Although the existing integrated seeder has realized the integration of sowing and fertilization, it can also adjust the depth of planting. However, with the development of lean agriculture, the The uniformity of sowing depth has high requirements to ensure that the seeds grow at the most suitable soil depth. The existing equipment is mainly passive profiling, the effect is not ideal, its response to the control of sowing depth is slow, and the accuracy of sowing depth is difficult to achieve satisfactory As a result, the consistency of sowing depth is poor, resulting in low seed germination rate, resulting in deep and shallow sowing of some seeds, making it difficult for seeds to grow.

Contents of the invention

The purpose of the present invention is to provide an active and passive profiling depth control joint operation seeder to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the present invention provides the following technical solution: an active and passive profiling sowing depth precision control joint operation seeder, including a frame, a rotary tiller, adjustable double discs are installed in sequence from front to back under the frame Ditching device, pressure roller, fertilization box and seeding box are installed sequentially above the frame from front to back;

The middle part of the adjustable double-disc ditching device is connected to the frame by rotation, and the frame is connected to the adjustable double-disc ditching device through a hydraulic rod drive, and the hydraulic rod stretches to drive the adjustable double-disc ditching device to rotate for active imitation. Shaped to fit sloped ground;

Both sides of the adjustable double-disc ditching device and on the frame are equipped with ground wheel detection components. The ground wheel detection component controls the connection of the hydraulic rod, and the ground wheel detection component controls the hydraulic rod to adjust according to the height of the ground. The adjustable double disc ditching device rotates to keep the adjustable double disc ditching device parallel to the ground;

The ground wheel detection assembly includes a frame connecting rod and a ground wheel frame. The frame connecting rod and the ground wheel frame are connected through a shaft rotation. The ground wheel is installed at the lower end of the ground wheel frame. The frame connecting rod and One end close to the shaft rod is provided with a contact installation frame, and the upper and lower ends of the contact installation frame are respectively provided with an upper contact and a lower contact, and the inner side of the ground wheel frame is fixedly connected with the pick, and the pick is located between point and lower contact;

The paddles on both sides are electrically connected, and the upper and lower contacts on both sides are respectively electrically connected to the positive and negative poles of a power supply to form two power lines. The hydraulic rod and the power source are connected with an electromagnetic reversing valve , and the two electrical ports of the electromagnetic reversing valve are respectively connected to the power lines on both sides.

Preferably, the adjustable double-disc ditching device includes a double-disc ditch mounting frame, a double-disc ditch, a support column, a rotating sleeve, a mounting frame connecting plate, a hydraulic rod mounting seat, a hydraulic rod, The connecting rod of the mounting frame, two rows of double-disc openers are alternately installed on the mounting frame of the double-disc opener, two connecting plates of the mounting frame are provided and the lower ends are respectively connected to the middle part of the mounting frame of the double-disc opener On both sides, the rotating sleeve passes through and is fixedly connected to the upper ends of the connecting plates of the two installation frames; The hydraulic rod mounting seat is fixedly installed on the support column, the hydraulic rod mounting seat is rotatably connected to one end of the hydraulic rod, the other end of the hydraulic rod is rotatably connected to one end of the connecting rod of the mounting frame, and the other end of the connecting rod of the mounting frame is Fixedly connected to the double disc opener mounting frame.

Preferably, two discharge openings are provided on the upper arc-shaped plate of the double-disc opener, one of which is connected to the seeding box through a hose.

Preferably, both the upper contact and the lower contact are connected to the contact mounting frame through screws.

Preferably, the contact mounting frame is insulated from the upper contact and the lower contact.

Preferably, the ground wheel frame is composed of two reversely arranged U-shaped frames welded together, one U-shaped frame is rotatably connected to the ground wheel, and the other U-shaped frame is rotatably connected to a shaft, and the shaft is fixedly arranged on the frame connecting end of the rod.

Preferably, the two sides of the contact mounting frame are fixedly provided with adjusting screws, and the connecting rod of the frame corresponding to the adjusting screw is provided with an adjusting long slot, and the adjusting screw passes through the adjusting long slot and is screwed to the locking screw.

The technical effects and advantages of the present invention: the active and passive profiling sowing depth precision control joint operation seeder, the adjustable double disc ditching device can be automatically adjusted when encountering inclined ground under the telescopic control of the hydraulic rod, so that the whole can be The dual-disc ditching device is adapted to the inclined ground, making the sowing depth more uniform and conducive to seed growth, and the ground wheel detection component is installed to detect the inclination of the ground during the entire working process of the device, which is real-time, efficient and effective.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the connection structure between the adjustable double disc ditching device and the frame of the present invention;

Fig. 3 is a structural schematic diagram of the adjustable double disc ditching device of the present invention;

Fig. 4 is the structural representation of the double disk ditch opener of the present invention;

Fig. 5 is a schematic structural diagram of the ground wheel detection assembly of the present invention;

Fig. 6 is a structural schematic diagram of the plectrum, the upper contact and the lower contact of the present invention;

Fig. 7 is a schematic diagram of the hydraulic rod control of the present invention.

In the figure: 1. Rack; 2. Rotary cultivator; 3. Adjustable double-disc ditching device; 31. Double-disc ditcher installation frame; 32. Double-disk ditcher; 33. Support column; 34. Rotating sleeve; 35. Mounting frame connecting plate; 36. Hydraulic rod mounting seat; 37. Hydraulic rod; 38. Mounting frame connecting rod; 4. Pressure roller; 5. Fertilization box; 6. Seeding box; 7. Ground Wheel detection component; 71, frame connecting rod; 72, contact installation frame; 73, upper contact; 74, lower contact; 75, ground wheel frame; 76, shaft rod; 77, paddle; 78, ground wheel .

Detailed ways

The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.

The present invention provides an active and passive profiling sowing depth precision control combined operation seeder as shown in Figure 1, comprising a frame 1, a rotary tiller 2, an adjustable double disc opening are installed in sequence from front to back under the frame 1 Ditch device 3, pressing roller 4, fertilization box 5 and seeding box 6 are installed sequentially on the top of frame 1 from front to back, frame 1 is installed behind tractors and other traction machinery, driven by traction machinery, the fertilizer in fertilization box 5 falls into the Rotary tillage in the field, the rotary tiller 2 performs rotary tillage on the soil, and then the adjustable double-disc ditching device 3 ditches the soil after rotary tillage, the seeds in the seeding box 6 fall into the ditch, and finally pass the suppression Roller 4 carries out soil-covering suppression, and the rotating shafts of suppression roller 4, fertilization box 5, and seeding box 6 are connected by chains, and the power of fertilization box 5, seeding box 6 comes from the friction between pressing roller 4 and the ground;

As shown in Figures 2, 3, and 4, the adjustable double-disc ditching device 3 includes a double-disc ditching device mounting frame 31, a double-disc ditching device 32, a support column 33, a rotating sleeve 34, and a mounting frame connecting plate 35. , hydraulic rod mounting seat 36, hydraulic rod 37, mounting bracket connecting rod 38, and the upper arc-shaped plate on the double disc ditch opener 32 offers two feeding openings, wherein one feeding opening connects the seeding box ( 6), the seeds of the seeding box 6 fall into the soil in the double-disc opener 32 through the hose, and two rows of double-disc openers 32 are alternately installed on the double-disc opener mounting frame 31, and the mounting frame is connected There are two plates 35, and the lower ends are respectively connected to both sides of the middle part of the double-disc opener mounting frame 31, the rotating sleeve 34 passes through and is fixedly connected to the upper ends of the connecting plates 35 of the two mounting frames, and the supporting column 33 passes through and is rotatably connected. Rotate the sleeve 34, the two ends of the support column 33 are fixedly installed on the frame 1, the hydraulic rod mounting seat 36 is fixedly installed on the support column 33, the hydraulic rod mounting seat 36 rotates and connects one end of the hydraulic rod 37, and the other end of the hydraulic rod 37 One end is rotatably connected to one end of the mounting frame connecting rod 38, and the other end of the mounting frame connecting rod 38 is fixedly connected to the double disc opener mounting frame 31. When the hydraulic rod 37 stretches out, the mounting frame connecting rod 38 is pushed, and the mounting frame The connecting rod 38 drives the entire double-disc opener mounting frame 31 to tilt to the right. When the hydraulic rod 37 retracts, the mounting frame connecting rod 38 is pulled, and the mounting frame connecting rod 38 drives the entire double-disc opener mounting frame 31 tilt to the left;

The two discs of the double-disc opener 32 are fixed on both sides of the disc fixing rod at an angle, and a spring is sleeved on the disc fixing rod. activities to realize passive profiling, the structure of the double disc opener 32 is the prior art, and will not be described in detail here.

As shown in Figures 5 and 6, ground wheel detection components 7 are installed on both sides of the adjustable double disc ditching device 3 and on the frame 1. The ground wheel detection component 7 controls the hydraulic rod 37 according to the ground level to drive the adjustable double disc. The disc ditching device 3 keeps the adjustable double disc ditching device 3 parallel to the ground to realize active profiling; the ground wheel detection assembly 7 includes a frame connecting rod 71, a ground wheel frame 75, and the frame connecting rod 71 is connected to the ground. The wheel frame 75 is rotatably connected by the shaft rod 76. The ground wheel frame 75 is welded by two reversely arranged U-shaped frames. One U-shaped frame is rotatably connected to the ground wheel 78, and the other U-shaped frame is rotatably connected to the shaft rod 76. The shaft rod 76 is fixedly arranged on one end of the frame connecting rod 71, and the end of the frame connecting rod 71 and close to the shaft rod 76 is provided with a contact mounting frame 72, and the inner two ends of the contact mounting frame 72 are respectively provided with an upper contact 73 and a lower contact. At point 74, the inner side of the ground wheel frame 75 is fixedly connected to the paddle 77, the ground wheel frame 75, the paddle 77, and the ground wheel 78 are rotatable relative to the shaft 76, and the paddle 77 is located at the upper contact 73 and the lower contact Between 74.

As shown in Figure 7, the paddles 77 on both sides are electrically connected, and the upper contact 73 and the lower contact 74 on both sides are respectively electrically connected to the positive pole and negative pole of a power supply to form two power supply lines. The connection between the hydraulic rod 37 and the power source The electromagnetic reversing valve is connected between them. The power source comes from the hydraulic system of the tractor, and the two electrical ports of the electromagnetic reversing valve are respectively connected to the power lines on both sides. Electromagnetic reversing valve, the Y1 electrical interface of the electromagnetic reversing valve is connected to the power line on the left, and the Y2 electrical interface is connected to the power line on the right. The positive poles of the two power lines are both 24V. P is the input port and power The source oil pipe is connected, T is the connection between the output port and the fuel tank, A and B are the connections between the output port and the two oil ports of the hydraulic rod 37; for the convenience of description, the upper contacts 73 on the left and right sides are represented by a and c, The lower contacts 74 of the frame 1 are represented by b and d; when the left paddle 77 touches a and the right paddle touches d, it shows that the left side of the rack 1 is at a small distance from the ground, and the right side is at a large distance from the ground. The electromagnetic coil Y2 on the right side of the electromagnetic reversing valve is equivalent to the energized state. The spool of the electromagnetic reversing valve will move to the right to make the electromagnetic reversing valve work in the right position. When the electromagnetic reversing valve is in the right position, the hydraulic rod 37 Stretching out, the hydraulic rod 37 stretching out will make the double-disc opener mounting frame 31 rotate to the right, and after a certain angle of rotation to the right, the left paddle 77 is disconnected from a or the right paddle is disconnected from d. After it is disconnected, Y2 is powered off, and the spool in the electromagnetic reversing valve is returned to the neutral position by the action of the spring, and the double disc opener mounting bracket 31 maintains the existing position until the next time the left and right height difference reaches a certain level so that ad In the same way, when the left paddle 77 touches b and the right paddle touches c, it means that the distance from the ground to the right of rack 1 is small, and the distance to the left is large, and the electromagnetic The electromagnetic coil Y1 on the left side of the reversing valve is equivalent to the energized state, the electromagnetic reversing valve is in the left position, the hydraulic rod 37 shrinks, and the opener mounting frame 31 rotates to the left until the left paddle 77 and b are disconnected or the right side The paddle and c are disconnected.

Specifically, the upper contact 73 and the lower contact 74 are connected to the contact mounting frame 72 through a screw, and the screw is rotated to change the position of the screw on the contact mounting frame 72, thereby adjusting the contact between the upper contact 73 and the lower contact 74. The distance between them can be changed, and the minimum height difference of the ground wheels 75 on both sides of the active adjustment is activated.

Specifically, the contact mounting frame 72 is insulated from the upper contact 73 and the lower contact 74 to avoid the influence of the contact mounting frame 72 on the upper contact 73 and the lower contact 74, and the contact mounting frame 72 can Made of insulating plastic.

During the use of the active and passive profiling sowing depth precision control joint operation seeder, the rotary tiller 2 performs rotary tillage on the soil, and then the adjustable double disc ditching device 3 ditches the rotary tilled soil, and the ground wheel The detection assembly 7 touches the ground and walks. When the passing ground is tilted, the ground wheel 78 on one side goes down due to gravity, and the ground wheel 78 on the other side goes up due to the support of the ground, so that the plectrums 77 on both sides touch the upper touch point upwards respectively. The point 73 contacts the lower contact point 74 downwards, so that the electromagnetic reversing valve that controls the oil passage of the hydraulic rod 37 is turned on, and the power source drives the hydraulic rod 37 to expand and contract, so that the double-disc opener mounting frame 31 is directed toward the ground wheel 78. The downward side is inclined, so that the adjustable double-disc ditching device 3 is adapted to the inclined ground, and the sowing depth is kept uniform, and the sowing is suppressed by the suppressing roller 4 after sowing.

Specifically, the two sides of the contact mounting frame 72 are fixedly provided with adjusting screws, and the frame connecting rod 71 corresponding to the adjusting screw is provided with an adjusting long groove, and the adjusting screw passes through the adjusting long groove and is screwed to the locking screw;

According to different sowing crops, the requirements for sowing depth are different. During work, a sowing depth can be set, such as 2 centimeters. Between points 74, when the sowing depth needs to be 3 cm, it is necessary to readjust the position of the contact mounting frame 72 to achieve the purpose of the plectrum 77 between the upper contact 73 and the lower contact 74; the control accuracy can be adjusted by The distance between the upper contact 73 and the lower contact 74 is realized. The position of the ground wheel 78 is determined by the height of the ground. The ground wheel 78 drives the ground wheel frame 75 and the paddle 77 to rotate, so that the paddle 77 is on the upper contact 73 and the lower contact. Move between the points 74, when the ground is in a horizontal state, the plectrums 77 on both sides are not in contact with the upper contact 73 and the lower contact 74, only when the ground height difference on both sides reaches a certain level, the ground wheels on both sides 78 The active adjustment mechanism will only start when the height difference reaches a certain level; this device is mainly aimed at the situation when the ground slopes on both sides of the forward direction, which is also the main factor for the poor consistency of sowing depth at present. In the forward direction, tractors and planters The hitch device for mediation.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (7)

1. The utility model provides an active and passive profile modeling seeding depth accurate control combined operation seeder, includes frame (1), its characterized in that: a rotary cultivator (2), an adjustable double-disc ditching device (3) and a compression roller (4) are sequentially arranged below the rack (1) from front to back, and a fertilizing box (5) and a sowing box (6) are sequentially arranged above the rack (1) from front to back;

the middle part of the adjustable double-disc ditching device (3) is rotatably connected with the rack (1), the rack (1) is connected with the adjustable double-disc ditching device (3) through a hydraulic rod (37) in a driving way, and the hydraulic rod (37) stretches and retracts to drive the adjustable double-disc ditching device (3) to rotate so as to carry out active profiling to adapt to the inclined ground;

land wheel detection assemblies (7) are respectively arranged on two sides of the adjustable double-disc ditching device (3) and positioned on the rack (1), the land wheel detection assemblies (7) are in control connection with hydraulic rods (37), and the land wheel detection assemblies (7) control the hydraulic rods (37) to adjust the adjustable double-disc ditching device (3) to rotate according to the height of the ground, so that the adjustable double-disc ditching device (3) is parallel to the ground;

the land wheel detection assembly (7) comprises a rack connecting rod (71) and a land wheel frame (75), the rack connecting rod (71) is rotatably connected with the land wheel frame (75) through a shaft rod (76), a land wheel (78) is installed at the lower end of the land wheel frame (75), a contact installation frame (72) is arranged at one end, close to the shaft rod (76), of the rack connecting rod (71), an upper contact (73) and a lower contact (74) are respectively arranged at the upper end and the lower end of the interior of the contact installation frame (72), the inner side of the land wheel frame (75) is fixedly connected with a shifting sheet (77), and the shifting sheet (77) is positioned between the upper contact (73) and the lower contact (74);

plectrum (77) electric connection of both sides, the positive pole and the negative pole of a power of last contact (73) and lower contact (74) difference electric connection of both sides form two power supply lines, be connected the magenetic exchange valve between hydraulic stem (37) and the power supply, and the power supply line of both sides is connected respectively to two electrical interfaces of magenetic exchange valve.

2. The active and passive profiling combined seeder for accurately controlling the seeding depth according to claim 1, wherein: adjustable two disc ditching device (3) are including two disc furrow opener mounting brackets (31), two disc furrow openers (32), support column (33), swivel sleeve (34), mounting bracket connecting plate (35), hydraulic stem mount pad (36), hydraulic stem (37), mounting bracket connecting rod (38), alternately install two rows of two disc furrow openers (32) on two disc furrow opener mounting brackets (31), mounting bracket connecting plate (35) set up two and the middle part both sides that two disc furrow opener mounting brackets (31) are connected respectively to the lower extreme, swivel sleeve (34) pass and the upper end of two mounting bracket connecting plates of fixed connection (35), support column (33) pass and rotate and connect swivel sleeve (34), the both ends fixed mounting of support column (33) is in frame (1), hydraulic stem mount pad (36) fixed mounting is on support column (33), hydraulic stem mount pad (36) rotates the one end of connecting hydraulic stem (37), the other end of hydraulic stem (37) rotates the one end of connecting mounting bracket connecting rod (38), the other end fixed connection of connecting rod (38) is on two disc furrow openers (31).

3. The active and passive profiling combined seeder for accurately controlling the seeding depth according to claim 1, wherein: two feed openings are formed in the upper arc-shaped plate on the double-disc furrow opener (32), and one feed opening is connected with the sowing box (6) through a hose.

4. The active and passive profiling combined seeder for accurately controlling the seeding depth according to claim 2, wherein: the upper contact (73) and the lower contact (74) are connected with the contact mounting frame (72) through screws.

5. The active and passive profiling combined seeder for accurately controlling the seeding depth according to claim 2, wherein: the contact mounting frame (72) is connected with the upper contact (73) and the lower contact (74) in an insulating mode.

6. The active and passive profiling combined seeder for accurately controlling the seeding depth according to claim 1, wherein: the ground wheel frame (75) is formed by welding two U-shaped frames which are arranged in opposite directions, one U-shaped frame is rotatably connected with the ground wheel (78), the other U-shaped frame is rotatably connected with a shaft lever (76), and the shaft lever (76) is fixedly arranged at one end of the rack connecting rod (71).

7. The active and passive profiling combined seeder for accurately controlling the seeding depth according to claim 1, wherein: adjusting screws are fixedly arranged on two side faces of the contact mounting frame (72), adjusting long grooves are formed in the rack connecting rods (71) corresponding to the adjusting screws, and the adjusting screws penetrate through the adjusting long grooves and are in threaded connection with locking screws.

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