CN204090507U - Full film double-furrow gas pushes away the accurate hill-drop planter of direct insertion corn - Google Patents

Abstract

The utility model relates to the technical field of corn sowing machinery in agricultural machinery, in particular to a full-film double-furrow air-push in-line corn precision hole sowing machine. It includes a frame, which is characterized in that the frame is equipped with three sets of air-push in-line precision hole-seeding devices, and the seeding discs of the three sets of air-push in-line precision hole-seeding devices pass through the seeding disc shafts arranged on the frame. Connected; the bottom of the frame is provided with a ground wheel, the large sprocket is coaxially installed on the ground wheel shaft with the ground wheel, the large sprocket is connected with the small sprocket installed on the camshaft through a chain, the camshaft is installed on the frame, and the cam The shaft is equipped with a cam corresponding to the control switch of the air push in-line precision hole planting device; the frame is also equipped with a gas distribution box connected to the power machine air pump, which is suitable for film-covered precision hole planting, and the number of holes is uniform Good precision, high pass rate, not easy to cause holes, the sowing depth, hole and row spacing can be adjusted; the hole forming speed is fast, and the insertion resistance is small.

Description

Full-film double-furrow air push in-line corn precision hole seeder

technical field

The utility model relates to the technical field of corn sowing machinery in agricultural machinery, in particular to a full-film double-furrow air-push in-line corn precision hole sowing machine.

Background technique

Film-mulching cultivation is the main cultivation technique for high-yield grain in northern my country. The links from plowing, fertilization, sowing, field management to harvesting are different from open-field cultivation. The film-covered corn hole seeder must meet the agronomic requirements of film-covered corn planting. The most widely used at present is undoubtedly the drum duckbill type film-covered hole seeder. The hole punching machine has changed the sowing method of ditching, sowing, and soil covering of the traditional seeder, and changed it to drilling, sowing, and soil covering. Therefore, it has the characteristics of small working resistance and high sowing precision, which effectively meets the needs of precision seeding in the industry. Plant spacing requirements, but this kind of planting machine has a high dislocation rate between seed holes and membrane holes, and poor hole particle number uniformity, which is prone to defects such as holes, low pass rate of hole particle numbers, and unadjustable sowing depth, hole, and row spacing. The main reason is that after the seed metering device of the drum duckbill hole seeder is seeded, the seeds need to be distributed to each hole forming device twice, and the time for the free fall of the seeds from the seed guide tube to the hole forming device needs to be separated by several seconds, so that the number of holes is qualified. The rate is low; the second is to adopt the roller duckbill type hole forming device, and its movement track is a curved cycloid, which cannot realize straight insertion and straight out. After the film hole is formed, the top of the duckbill will produce a film or hanging film, and the film will be formed by repeated stretching. The third is that different varieties, different soil conditions, and different sowing seasons require different sowing depths, different hole spacing, and row spacing to ensure a better emergence rate. Adjustment. The fourth is that the insertion speed of the hole forming device is too slow, the resistance is too large, the duckbill is easy to block the hole, the soil is caught, and sometimes it is difficult to open the soil. In view of this, my country has developed several in-line film-covered hole seeders. After sowing, the film hole dislocation rate of the seed planter is reduced, the number of holes is uniform, and the film tearing and picking of the hole forming device are solved. However, due to the low insertion speed and high insertion resistance of the mechanism used, the seeding efficiency is low and the duckbill is blocked. Phenomenon or because the surface is too hard to insert, restricting its smooth promotion.

Contents of the invention

The purpose of the utility model is to avoid the existing technical defects and propose a full-film double-furrow air-push in-line corn precision hole seeder, which effectively solves the problems existing in the prior art.

In order to achieve the above purpose, the technical solution adopted by the utility model is: the full-film double-furrow air push in-line corn precision hole seeder includes a frame, which is characterized in that the frame is equipped with three sets of air push straight Plug-in precision hole-seeding device, three sets of air-push in-line precision hole-seeding device, the seeding discs are connected through the seeding disc shafts set on the frame; the lower part of the frame is equipped with a ground wheel, and the large sprocket is installed coaxially with the ground wheel On the ground wheel shaft, the large sprocket is connected with the small sprocket installed on the camshaft through a chain, the camshaft is installed on the frame, and the camshaft is provided with a cam corresponding to the control switch of the air-push in-line precision planting device The frame is also provided with a gas distribution box connected to the power machine air pump, and the gas distribution box connects the high-pressure gas with the push cylinder assembly of the air-push in-line precision hole planting device through the trachea, and the frame is also provided with A three-point hitch connected to the power machine.

The air-push in-line precision hole-seeding device includes a push cylinder assembly, the cylinder piston is connected with a push rod, and a cave forming device assembly is arranged at the lower part of the push rod; The gear teeth provided on the edge are meshed; the end of the ejector rod in the cavitator assembly is provided with a rubber cup; the cavitator assembly includes a cavitator shell and a duckbill cavitator A return spring is provided between the limiting plates; a screw plug is provided on the casing of the cavitation device, a depth-limiting plate and a lower push rod are provided on the ejector rod in the cavitation device assembly, and a depth-limiting plate and a lower push rod are arranged on the cavity-forming device A depth adjustment spring is arranged between the casings; at least a single seed filling hole is provided on the casing of the cavitation device, and the filling hole is circular; both sides of the duckbill-shaped cavitation device are connected by hinges; The composition includes a cylinder head on the upper part of the cylinder block, an upper gland on the upper part of the cylinder, a sealing ring arranged between the cylinder and the upper gland, a gasket arranged between the cylinder head and the cylinder block, and a compression spring It is arranged between the cylinder head and the upper gland; the upper part of the cylinder is provided with an air inlet, the lower part is provided with an air outlet, and a control switch is provided on the cylinder head.

The seeding tray is provided with an outer casing, the upper part of the outer casing is provided with a seed box, the seed box is fixedly connected with the outer casing by screws, the lower part of the outer casing is provided with an inoculation box, the lower part of the inoculation box is equipped with a seed introduction tube, and the lower part of the seed introduction tube is The outlet is connected with the seed filling hole on the casing of the cavitation device.

The seeding disc is cylindrical, with sockets on one half and gear teeth on the other half.

The beneficial effects of the utility model are: the full-film double-row air-push in-line corn precision hole planter is suitable for film-covered precision hole planting, and the air-push in-line corn precision hole planter relies on air pressure to make The cavitation device is quickly inserted into the soil to complete the sowing, and can be quickly reset, which can prevent the cavitation device from picking and tearing the film, and the misalignment of the seed and the film hole. The precision discharge, the rack and pinion structure and the driving effect of the ejector rod ensure that the seeds have stayed in the hole forming device in advance, reducing the time for the seeds to fall, ensuring the rapid entry of the seeds into the holes, improving the quality of sowing, and overcoming the existing The domestic drum-type film-covered hole seeder has a high misalignment rate between the hole and the film hole, and the uniformity of the number of holes is poor, which is easy to cause holes and the number of holes is low. The hole-forming speed of the plug-in hole seeder is low, the insertion resistance is large, and the hole distance cannot be adjusted.

Description of drawings

Fig. 1 is the schematic diagram of the left view structure principle of the utility model;

Fig. 2 is a schematic diagram of a top view structure principle of the utility model;

Fig. 3 is a schematic diagram of the rear view structure principle of the utility model;

Fig. 4 is a schematic diagram of the structure and principle of the air-push in-line precision hole sowing device in Fig. 1 of the present utility model.

In the figure: 1. Push cylinder assembly; 1-1. Cylinder head; 1-2. Air inlet; 1-3. Gasket; 1-4. Upper gland; 1-5. Cylinder barrel; 1-6 .Cylinder block; 1-7. Air outlet; 2. Control switch; 3. Ejector; 3-1. Rack; 3-2. Lower push rod; .cavitation device assembly; 5-1. hinge; 5-2. duckbill-shaped cavitation device; 5-3. limit plate; 5-4. cavitation device housing; 5-5. return spring; 5 -6, Seed filling hole; 5-7. Depth adjustment spring; 5-8. Screw plug; 6. Seed introduction tube; 7. Inoculation box; 8-1. Seed tray; 8-2. Gear teeth; 9. Outer casing; 10. Seed disc shaft; 11. Screw; 12. Seed box; 13. Cylinder piston; 14. Seal ring; 15. Compression spring; 16. Chain; 17. Small sprocket wheel; 18. Ground wheel; 19. frame; 20. gas pipe; 21. gas distribution box; 22. camshaft; 23. cam; 24. three-point suspension; 25. ground wheel shaft; 26. large sprocket.

Detailed ways

The principles and features of the present utility model are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the utility model, and are not used to limit the scope of the utility model.

As shown in Figures 1 to 4, the full-film double-furrow air-push in-line precision hole planter for corn includes a frame 19, which is characterized in that the frame 19 is provided with three groups of air-push in-line precision hole planters. device, the seeding discs 8-1 of three groups of air-push in-line precision hole sowing devices are connected through the seeding disc shaft 10 arranged on the frame 19; Wheel 18 is coaxially installed on the ground wheel shaft 25, and the large sprocket 26 is connected to the small sprocket 17 installed on the camshaft 22 through the chain 16. The camshaft 22 is installed on the frame 19, and the camshaft 22 is provided with a gas Push the cam 23 corresponding to the control switch 2 of the in-line precision planting device; the frame 19 is also provided with a gas distribution box 21 connected to the power machine air pump, and the gas distribution box 21 pushes high-pressure gas and air into the in-line precision planting device through the air pipe 20. The propelling cylinder assembly 1 of the hole sowing device is connected, and a three-point suspension device 24 connected with the power machine is also arranged on the described frame 19 .

The air-push in-line precision hole-seeding device includes a push cylinder assembly 1, the cylinder piston 13 is connected with a push rod 3, and a cave forming device assembly 5 is provided at the bottom of the push rod 3; The strip 3-1 meshes with the gear teeth 8-2 provided on the outer edge of the seeding disc 8-1; a rubber cup 4 is provided at the end of the ejector rod 3 in the cavitation device assembly 5; the cavitation device The assembly 5 includes a return spring 5-5 between the cavitation device housing 5-4 and the limiting plate 5-3 of the duckbill type cavitation device 5-2; A screw plug 5-8 is provided on the top, a depth-limiting plate 3-3 and a lower push rod 3-2 are arranged on the ejector rod 3 in the cavitation device assembly 5, and a depth-limiting plate 3-3 and a cavitation device housing A depth adjustment spring 5-7 is provided between 5-4; at least a single seed filling hole 5-6 is provided on the cavitator housing 5-4, and the seed filling hole 5-6 is circular; duckbill-shaped cavitation Both sides of the device 5-2 are connected by a hinge 5-1; the push cylinder assembly 1 includes a cylinder head 1-1 on the top of the cylinder block 1-6, and an upper gland on the top of the cylinder 1-5. 1-4, the sealing ring 14 is set between the cylinder 1-5 and the upper gland 1-4, the gasket 1-3 is set between the cylinder head 1-1 and the cylinder block 1-6, and the compression spring 15 is set Between the cylinder head 1-1 and the upper gland 1-4; the upper part of the cylinder barrel 1-5 is provided with an air inlet 1-2, the lower part is provided with an air outlet 1-7, and the cylinder head 1-1 is provided with a control switch 2.

Described seeding tray 8-1 is provided with outer casing 9, and outer casing 9 top is provided with seed box 12, and seed box 12 is fixedly connected with outer casing 9 by screw 11, and outer casing 9 bottom is provided with inoculation box 7, and inoculation box The 7 bottoms are equipped with a seed guide tube 6, and the outlet of the seed guide tube 6 lower part is connected with the seed filling hole 5-6 on the cave forming device housing 5-4.

The seeding disc 8-1 is cylindrical, and its half is provided with sockets, and the other half is provided with gear teeth 8-2.

The full-film double-furrow air-push in-line corn precision hole seeder is used. The hole seeder is suspended on the tail of a small four-wheel tractor through a three-point suspension device 24, so that the air pipe 20 is connected to the air pump of the tractor. Start the tractor, and the tractor transmits power to the ground wheel 18 to drive the hole seeder to advance. The ground wheel 18 drives the coaxial large sprocket 26 to rotate through the ground wheel shaft 25, and the large sprocket 26 drives the small sprocket 17 to rotate through the chain 16, and the small sprocket 17 drives the coaxial cam 23 to rotate through the camshaft 22. At this moment, the duckbill-shaped cavitator 5-2 is connected with the cavitator housing 5-4 by the hinge 5-1, and the return spring 5-5 and the cavitator housing 5-4 keep the duckbill cavitator 5- 2 is in a closed state, the lower push rod 3-2, the cavitation device housing 5-4, and the depth adjustment spring 5-7 are compressed by the screw plug 5-8, and the ejector rod 3 is provided with a rack 3-1 to discharge seeds The semicircle part of the disc 8-1 is provided with gear teeth, and the other semicircle part of the seeding disc 8-1 is provided with a filling hole, and the rack 3-1 part of the push rod 3 is connected with the gear teeth 8-2 of the seed disc 8-1. Engagement, push rod 3 drives seeding disc 8-1 to reciprocate up and down, seeding disc 8-1 is connected with seeding disc shaft 10, and seeding disc 8-1 outer casing 9 is connected with seed box 12 through screw 11, inoculation The box 7 receives the seeds falling from the seed filling hole of the seeding tray 8-1, and enters the seed filling hole 5-6 of the cavitator housing 5-4 through the seed guide pipe 6. The airflow compressed by the external air pump passes through the air pipe 20 and the gas distribution box 21 and enters the gap formed by the upper gland 1-4 and the cylinder barrel 1-5 and the cylinder head 1-1 and the upper gland 1-2 through the air inlet 1-2. In the gap formed by 4, the upper gland 1-4 and the cylinder barrel 1-5 are sealed by the sealing ring 13, and the upper gland 1-4 is compressed by the compression spring 15 and the cylinder head is compressed on the cylinder On cylinder 1-5, when the control switch 2 is pressed down by the cam 23, the air pressure in the gap formed by the upper gland and the cylinder head 1-1 is higher than the air pressure in the gap between the upper gland 1-4 and the cylinder head 1-1, The upper gland 1-4 is pushed upward by the air pressure, the compression spring 15 is compressed, the air flow is pressed between the upper gland 1-4 and the piston 13, the piston 13 is pushed downward, and the air under the piston 13 passes through the cylinder 1- The air outlet below 5 is stored in the gap formed by cylinder barrel 1-5 and cylinder block 1-6. The rack drives the seeding disc 8-1 to rotate counterclockwise, and the lower push rod 3-2 is pushed downward by the push rod, driving the duckbill-shaped caving device 5-2 to insert into the soil, and the limit of the duck-bill-shaped caving device 5-2 The bit baffle is pushed by the soil, the duckbill-shaped hole forming device 5-2 is opened, the depth adjustment spring 5-7 continues to be compressed, the seeds are pushed into the soil, the cam 23 continues to rotate, the control switch 2 is released, and the air inlet 1-2 The air flow enters the upper and lower gaps of the upper gland 1-4, the upper and lower pressures of the upper gland 1-4 are balanced, the upper gland 1-4 is pushed down by the compression spring 15, and the cylinder 1-5 is close to the sealing ring 13 seal, the gas in the gap between the cylinder 1-5 and the cylinder body 1-6 enters under the piston through the small hole under the cylinder 1-5 to push the piston upward, driving the ejector rod 3 to move upward, and the rack on the ejector rod 3 Drive the seeding tray 8-1 to rotate clockwise, and the seeds in the seed box 12 rotate downward with the socket on the seeding tray 8-1 and fall into the inoculation box 7, and the seeds dropped in the inoculation box 7 pass through the seed introduction tube 6 Enter the seed filling hole on the caving device housing 5-4, fall into the duckbill-shaped caving device and wait to complete a sowing cycle.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (4)

1. A full-film double-furrow air-push in-line corn precision hole sowing machine, including a frame, is characterized in that the frame is provided with three groups of air-push in-line precision hole sowing devices, three groups of air-push in-line precision hole sowing devices The seeding disk of the precision hole sowing device is connected by the seeding disk shaft arranged on the frame; the ground wheel is arranged at the lower part of the frame, and the large sprocket and the ground wheel are coaxially installed on the ground wheel shaft, and the large sprocket is installed on the ground wheel through the chain. The small sprockets on the camshaft are connected, and the camshaft is installed on the frame. The camshaft is provided with a cam corresponding to the control switch of the air-push in-line precision planting device; the frame is also provided with a gas pump connected to the power machine air pump. The distribution box, the gas distribution box connects the high-pressure gas with the push cylinder assembly of the air-push in-line precision planting device through the air pipe, and the frame is also provided with a three-point suspension device connected with the power machine. 2. The full-film double-furrow air-push in-line precision hole seeder for corn as claimed in claim 1, characterized in that: said air-push in-line precision hole sowing device includes a push cylinder assembly, and the cylinder piston is connected with a top Rod, the lower part of the ejector rod is provided with a cavitation device assembly; the middle part of the ejector rod is provided with a rack to mesh with the gear teeth provided on the outer edge of the seed tray; the end of the ejector rod in the cavitation device assembly is provided with a rubber leather cup; the cavitator assembly includes a return spring between the cavitator housing and the limiting plate of the duckbill-shaped cavitator; a screw plug is provided on the cavitator housing, and The ejector rod in the cavitation device assembly is provided with a depth-limiting plate and a lower push rod, and a depth-adjusting spring is provided between the depth-limiting plate and the cavitation device housing; at least a single seed filling device is provided on the cavitation device housing. The hole and the seed filling hole are circular; the two sides of the duckbill-shaped hole forming device are connected by hinges; The ring is arranged between the cylinder barrel and the upper gland, the gasket is arranged between the cylinder head and the cylinder block, and the compression spring is arranged between the cylinder head and the upper gland; the upper part of the cylinder is provided with an air inlet, and the lower part is provided with The air outlet is provided with a control switch on the cylinder head. 3. The full-film double-furrow air-push in-line precision hole seeder for corn as claimed in claim 2, characterized in that: said seeding disc is provided with an outer casing, and the upper part of the outer casing is provided with a seed box, and the seed box is passed through a screw. It is fixedly connected with the outer casing, the lower part of the outer casing is provided with an inoculation box, the lower part of the inoculation box is equipped with a seed introduction tube, and the outlet of the lower part of the seed introduction tube is connected with the seed filling hole on the casing of the cavitation device. 4. The full-film double-furrow air-push in-line corn precision hole seeder as claimed in claim 3, characterized in that: the seeding disc is cylindrical, half of which is provided with sockets, and the other half is provided with holes. gear teeth.