CN112056029A

CN112056029A - Agricultural is with fertilizer injection unit that digs

Info

Publication number: CN112056029A
Application number: CN202010894556.5A
Authority: CN
Inventors: 高锦慧
Original assignee: Quanzhou Liangchuang Information Technology Co Ltd
Current assignee: Quanzhou Liangchuang Information Technology Co Ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2020-12-11

Abstract

The invention discloses an agricultural soil turning and fertilizing device, which belongs to the field of agricultural equipment and comprises a carrier plate with a walking roller wheel, wherein a roller with digging teeth is arranged below the carrier plate, a material storage cavity is arranged in the roller, a liquid fertilizer storage box communicated with the material storage cavity is arranged on the carrier plate, a first hydraulic cavity, a fertilization transfer cavity, a fertilization cavity and a second hydraulic cavity are arranged in the roller, the material storage cavity, the fertilization transfer cavity and the fertilization cavity are sequentially communicated, a second piston extending into the first hydraulic cavity is arranged in the fertilization transfer cavity, and a first piston connected with the digging teeth in a sliding manner is arranged in the first hydraulic cavity; the second hydraulic pressure chamber passes through oil delivery passageway and first hydraulic pressure chamber intercommunication, and the second hydraulic pressure intracavity is equipped with the piston board to be connected with the drilling rod that extends to the cylinder outside on it, seted up helical passage on the drilling rod, and clamped the ball between helical passage and the cylinder inside. The invention has the advantages of ingenious structural design, convenient application, capability of simultaneously turning soil and fertilizing, better soil turning and loosening effect and better fertilizing uniformity.

Description

Agricultural is with fertilizer injection unit that digs

Technical Field

The invention relates to the field of agricultural equipment, in particular to an agricultural soil turning and fertilizing device.

Background

Agriculture is an industry for obtaining products by artificial cultivation by utilizing growth and development rules of animals and plants. Agriculture belongs to the first industry, and the science for researching agriculture is agriculture. The agricultural working object is living animals and plants, and the obtained products are the animals and plants. Agriculture is a fundamental industry for supporting national economic construction and development. In agriculture, crops can not grow less and can not be fertilized, but when the crops are fertilized, soil turning and fertilization are needed, when soil turning and fertilization are manually carried out on the soil, due to the fact that the soil turning and fertilization are manually carried out, the fertilization amount is uneven, and after fertilization, soil needs to be scraped to be buried in the fertilizer. Therefore, the agricultural soil-turning and fertilizing device which can be used for turning soil and fertilizing at the same time and can uniformly fertilize is urgently needed to be developed.

Disclosure of Invention

1. Technical problem to be solved

The technical problem to be solved by the invention is to provide an agricultural soil turning and fertilizing device which is ingenious in structural design, convenient to apply, capable of simultaneously turning soil and fertilizing, good in soil turning and loosening effect and good in fertilizing uniformity.

2. Technical scheme

In order to solve the problems, the invention adopts the following technical scheme:

the agricultural soil turning and fertilizing device comprises a carrier plate, wherein a walking roller is connected to the lower portion of the carrier plate through a connecting plate, a roller driven by a motor is rotatably connected to the lower portion of the front side of the carrier plate, and at least one circle of digging teeth distributed at equal intervals along the peripheral side of the roller are arranged on the surface of the roller at equal intervals along the length direction of the roller; a material storage cavity is formed in the axis in the roller, a liquid fertilizer storage box with a feed inlet at the top is fixed on the carrier plate, and a discharge pipe communicated with the material storage cavity is connected to the lower end of one side of the liquid fertilizer storage box; a first hydraulic cavity, a fertilization transfer cavity, a second hydraulic cavity and a fertilization cavity which are respectively in one-to-one correspondence with the digging teeth on the same ring are formed in the roller;

a first piston extending to the outer side of the roller is arranged in the first hydraulic cavity in a sealing mode, the first piston is closely and slidably connected with one side of the corresponding digging tooth, and the outer side end of the first piston is aligned with the tip of the digging tooth; a piston plate is hermetically arranged in the second hydraulic cavity, one side of the piston plate is connected with a drill rod which penetrates and extends to the outer side of the roller, an oil conveying channel is communicated between one side of the second hydraulic cavity, which is back to the drill rod, and one side of the corresponding first hydraulic cavity, which is back to the first piston, the drill rod is provided with a spiral channel which spirally extends along the length of the drill rod, arc-shaped grooves which are respectively positioned on two opposite sides of the drill rod are arranged at the position in the roller, through which the drill rod passes, a ball is clamped between each arc-shaped groove and the spiral channel, and a second spring which is connected to the piston plate is fixed on the side of the second hydraulic cavity, which corresponds to the drill rod;

the fertilization transfer cavity is arranged on one side of the first hydraulic cavity back to the corresponding excavating tooth, a second piston is arranged in the fertilization transfer cavity in a sealing mode, a rod-shaped part of the second piston extends to the inner side of the first hydraulic cavity, a sealing part is arranged at a position in the roller where the rod-shaped part of the second piston passes, a first spring connected with the second piston is fixed on one side of the fertilization transfer cavity back to the corresponding first hydraulic cavity, a first liquid inlet and a first liquid outlet are arranged on one side of the fertilization transfer cavity back to the first hydraulic cavity, the first liquid inlet is connected with a liquid inlet pipe which is arranged on the end face side of the roller and is communicated with the storage cavity, a first check valve is arranged on the liquid inlet pipe, the first liquid outlet is connected with a liquid outlet pipe which is arranged on the end face side of the roller and is communicated with the corresponding fertilization cavity, a second check valve is arranged on the liquid outlet pipe, and a second liquid inlet connected with the liquid outlet pipe is, the surface side of the roller is provided with a plurality of fertilizing through holes communicated with the fertilizing cavity corresponding to the area where the fertilizing cavity is located.

Furthermore, both side surfaces of the excavating tooth are arc-shaped curved surfaces, the first hydraulic cavity, the first piston, the fertilization transfer cavity and the second piston are all arc-shaped, the central lines of the first hydraulic cavity, the fertilization transfer cavity, the first piston and the second piston corresponding to the same excavating tooth are located on the same circular track, and the large arc side of the rod-shaped part of the first piston is completely attached to the inner side arc surface of the excavating tooth. The arc-shaped curved surface of the digging tooth is arranged, so that the digging tooth can better dig and turn soil; correspondingly, establish first hydraulic pressure chamber, fertilization transfer chamber, first piston and second piston into the arc and inject their central line and be located same circular orbit, and make the shaft-like part of first piston attach completely on excavating the tooth, make when excavating the tooth and excavate soil, first piston moves along excavating the corresponding side cambered surface of tooth and following the trend, first piston can receive relatively great thrust and move to first hydraulic pressure intracavity, thereby can be better push the fluid in the first hydraulic pressure intracavity, and promote the second piston, and then can be better push the liquid fertilizer in the fertilization transfer intracavity.

Further, each drill rod is positioned between two adjacent digging teeth, and the head end of each drill rod faces to the side where the corresponding digging tooth is located; each fertilizer cavity is located between an excavating tooth and a respective drill rod. The soil block that the tooth scarfed is dug to accurate positioning after setting up like this and stretching out is stirred garrulous and is broken up, and just sprays on the soil being broken up by the scarification from fertilization chamber spun liquid fertilizer for the timeliness of digging, breaking up and fertilization operation is strong, and the location is accurate.

Furthermore, connecting shafts are fixed at the centers of the end surfaces of the two sides of the roller respectively, two side baffles which are respectively positioned at the outer sides of the end surfaces of the two sides of the roller are fixed on the bottom surface of the carrier plate, and the connecting shafts are connected to the side baffles at the corresponding sides through sealing bearings; the driving belt wheel is fixedly sleeved on an output shaft of the motor, the driven belt wheel is fixedly sleeved on a connecting shaft corresponding to the side of the driving belt wheel, a driving belt is arranged between the driven belt wheel and the driving belt wheel in a surrounding mode, and a through hole for the driving belt to penetrate through is formed in the carrier plate. After the motor is started, the driving belt wheel can be directly driven to rotate, the driven belt wheel can be driven to rotate through the transmission belt, the connecting shaft on the side can be driven to rotate, and therefore the rotary driving of the roller can be achieved.

Furthermore, a conveying channel communicated with the material storage cavity is formed in the inner side of the connecting shaft corresponding to the side where the discharging pipe is located, the sealing bearing connected with the connecting shaft is installed inside the side baffle plate on the corresponding side in an embedded mode, the output end of the discharging pipe is fixed on the side baffle plate on the corresponding side in an inserted mode, and the output end of the discharging pipe just abuts against the conveying channel of the connecting shaft. The liquid fertilizer in the liquid fertilizer storage box can be discharged through the discharge pipe, under the sealing action of the sealing bearing, the liquid fertilizer can smoothly enter the storage cavity through the conveying channel, and the bottom of the liquid fertilizer storage box is always higher than the storage cavity, so that the liquid fertilizer in the liquid fertilizer storage box can continuously flow to the storage cavity until the storage cavity is full of the liquid fertilizer; simultaneously, under the drive of motor, the connecting axle can take place to rotate for the sealed bearing of corresponding side, can satisfy cylinder pivoted demand, and it can realize the continuous feed to the storage cavity when satisfying cylinder pivoted demand promptly.

Furthermore, an arc-shaped upper baffle which is concentric with the roller is arranged above the roller, and the top of the upper baffle is fixed on the carrier plate; a push rod is fixed on one side of the carrier plate. The upper baffle can be protected above the roller, so that the splashing of soil can be prevented; the device can be easily pushed manually by the push rod.

3. Advantageous effects

(1) According to the invention, the storage cavity is arranged in the roller, and the liquid fertilizer storage box communicated with the storage cavity is arranged, so that the liquid fertilizer can be fully filled in the storage cavity; be equipped with in the cylinder that the surface was equipped with the excavation tooth and be equipped with fertilization transfer chamber and the fertilization chamber with the excavation tooth one-to-one on same circle, and fertilization transfer chamber passes through feed liquor pipe and storage cavity intercommunication, and the fertilization chamber passes through drain pipe and fertilization transfer chamber intercommunication, and fertilization transfer intracavity is equipped with the second piston. In the process of digging the soil that turns over at the tooth, promote the second piston to the inboard removal of fertilization transfer chamber, under the directional effect of first check valve and second check valve, can deliver to corresponding fertilization intracavity with the liquid fertilizer in the fertilization transfer intracavity through the drain pipe, and the liquid fertilizer sprays out from the fertilization through-hole, sprays on the soil that is turned over, realizes fertilizing when digging soil.

(2) According to the invention, the second hydraulic cavities which correspond to the same ring of excavating teeth one by one are arranged in the roller, the piston plates are arranged in the second hydraulic cavities, the drill rods extending to the outer side of the roller are connected on the piston plates, oil is introduced into the second hydraulic cavities in the process of excavating and turning soil by the excavating teeth, the piston plates can move to the sides of the drill rods to drive the drill rods to extend outwards, the drill rods cannot directly extend in a translation mode due to the limit matching arrangement of the spiral channels, the balls and the arc grooves, the drill rods rotate under the reaction force of the balls while extending, the drill rods extend out while rotating, soil blocks can be broken and scattered, the soil-turning and soil-loosening effect can be improved, the contact area of the soil and liquid fertilizer can be increased, and the fertilization uniformity can be improved.

(3) The invention is provided with first hydraulic cavities which correspond to the excavating teeth on the same ring one by one, first pistons which are connected with the excavating teeth in a sliding way are arranged in the first hydraulic cavities, second pistons extend into the first hydraulic cavities, and the second hydraulic cavities are communicated with the first hydraulic cavities through oil conveying channels. In the process of excavating and stirring soil by the excavating teeth, the first piston is pushed to move into the first hydraulic cavity by the reaction force of the soil, and can push oil in the first hydraulic cavity to enter the second hydraulic cavity, so that the corresponding drill rod can be started to crush and break the soil; simultaneously, after first piston removed to the second piston of contradicting, can promote the second piston and remove to fertilization transfer chamber inboard, can start fertilizing mechanism and spray liquid fertilizer to soil. The soil stirring and scattering device can drive and realize the soil stirring and scattering operation and the fertilizing operation only by depending on the soil turning operation of the digging teeth, does not need to additionally arrange a driving part, and has the advantages of ingenious structural design, strong linkage of all mechanisms, convenient operation and control and convenient application.

(4) According to the invention, the arrangement of the first spring can help the second piston to reset when the excavating tooth is not in contact with soil, so that negative pressure is generated in the fertilization transfer cavity, and liquid fertilizer in the storage cavity can be sucked through the liquid inlet pipe under the directional action of the first one-way valve and the second one-way valve so as to be fertilized next time; the second spring can help the piston plate to reset when the digging tooth is not contacted with soil, and can drive the drill rod to reset, meanwhile, the oil in the second hydraulic cavity can be pushed, so that the oil which enters the second hydraulic cavity before returns to the first hydraulic cavity through the oil delivery channel, the increase of the oil in the first hydraulic cavity can push the first piston to extend and reset, the digging tooth can start the clod scattering mechanism and the fertilizing mechanism when rotating to the lower end of the roller for digging, when the rotary drum rotates to the upper end of the rotary drum and the soil turning is suspended, the soil block scattering mechanism and the fertilizing mechanism can be reset, so that the single digging tooth, the soil block scattering mechanism and the fertilizing mechanism can be started intermittently and periodically to play a role along with the continuous rotation of the rotary drum, and the continuous soil turning operation can be realized through the digging teeth which are arranged around the roller at equal intervals and the corresponding soil block scattering mechanism and the fertilizing mechanism.

In conclusion, the invention has the advantages of ingenious structural design, convenient application, capability of simultaneously turning soil and fertilizing, better soil turning and loosening effect and better fertilizing uniformity.

Drawings

FIG. 1 is a front view of the present invention in a schematic configuration;

fig. 2 is a schematic structural view of the drum 13 with the side dams 2 removed from the end surface side;

FIG. 3 is an enlarged view of the structure of the area A in FIG. 2;

FIG. 4 is a schematic structural view of a cross section of the drum 13;

FIG. 5 is an enlarged view of the structure of the area B in FIG. 4;

fig. 6 is a schematic left side view of the structure of the present invention.

Reference numerals: 1. digging teeth; 2. a side dam; 3. a driving pulley; 4. a motor; 5. a liquid fertilizer storage box; 6. a feed inlet; 7. a push rod; 8. a carrier plate; 9. a connecting plate; 10. a walking roller; 11. a discharge pipe; 12. an upper baffle plate; 13. a drum; 14. a liquid inlet pipe; 15. a transmission belt; 16. a drill stem; 17. a liquid outlet pipe; 18. a second one-way valve; 19. a first check valve; 20. a driven pulley; 21. a connecting shaft; 22. a delivery channel; 23. a first hydraulic chamber; 24. a second liquid inlet; 25. a fertilizing cavity; 26. a first piston; 27. a first liquid outlet; 28. a first spring; 29. a material storage cavity; 30. a second piston; 31. a first liquid inlet; 32. a fertilization transfer cavity; 33. an oil delivery passage; 34. a piston plate; 35. fertilizing through holes; 36. a ball bearing; 37. an arc-shaped slot; 38. a second spring; 39. a spiral channel; 40. a second hydraulic chamber; 41. sealing the bearing; 42. and (6) a port.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Examples

An agricultural soil-turning and fertilizer-applying device as shown in fig. 1 comprises a carrier plate 8, a traveling roller 10 is connected to the lower part of the carrier plate 8 through a connecting plate 9, a roller 13 driven by a motor 4 is rotatably connected to the lower part of the front side of the carrier plate 8, and at least one circle of digging teeth 1 (four circles of digging teeth 1 are shown in fig. 6) are arranged on the surface of the roller 13 at equal intervals along the length direction; a material storage cavity 29 is formed in the axis of the roller 13, a liquid fertilizer storage box 5 with a feeding hole 6 at the top is fixed on the carrier plate 8, and a discharging pipe 11 communicated with the material storage cavity 29 is connected to the lower end of one side of the liquid fertilizer storage box 5; as shown in fig. 4, a first hydraulic cavity 23, a fertilization transit cavity 32, a second hydraulic cavity 40 and a fertilization cavity 25 which are respectively in one-to-one correspondence with the digging teeth 1 on the same ring are formed in the drum 13;

as shown in fig. 4 and 5, a first piston 26 extending to the outside of the roller 13 is hermetically arranged in the first hydraulic chamber 23, and the first piston 26 is in close-fitting sliding connection with one side of the corresponding digging tooth 1, and the outer side end of the first piston 26 is aligned with the tip of the digging tooth 1; a piston plate 34 is hermetically arranged in the second hydraulic cavity 40, one side of the piston plate 34 is connected with a drill rod 16 which extends to the outer side of the roller 13 in a penetrating manner, an oil conveying channel 33 is communicated between one side of the second hydraulic cavity 40, which is back to the drill rod 16, and one side of the corresponding first hydraulic cavity 23, which is back to the first piston 26, the drill rod 16 is provided with a spiral channel 39 which extends spirally along the length of the drill rod 16, arc-shaped grooves 37 which are respectively positioned at two opposite sides of the drill rod 16 are arranged at positions in the roller 13, through which the drill rod 16 passes, a ball 36 is clamped between each arc-shaped groove 37 and the spiral channel 39, and a second spring 38 which is connected to the piston plate 34 is fixed at the side of the second hydraulic cavity 40, which corresponds to the drill rod;

as shown in fig. 4, the fertilization transfer chamber 32 is disposed on a side of the first hydraulic chamber 23 facing away from the corresponding digging tooth 1, the fertilization transfer chamber 32 is hermetically provided with the second piston 30 therein, a rod-shaped portion of the second piston 30 extends to an inner side of the first hydraulic chamber 23, a sealing member (which may be a sealing rubber ring) is disposed at a position in the drum 13 through which the rod-shaped portion of the second piston 30 passes, a first spring 28 connected to the second piston 30 is fixed on a side of the fertilization transfer chamber 32 facing away from the corresponding first hydraulic chamber 23, a first liquid inlet 31 and a first liquid outlet 27 are disposed on a side of the fertilization transfer chamber 32 facing away from the first hydraulic chamber 23, as can be seen from fig. 2, 3 and 4, the first liquid inlet 31 is connected to a liquid inlet pipe 14 located on an end surface side of the drum 13 and communicated with the material storage chamber 29, the liquid inlet pipe 14 is provided with a first one-way valve 19, the first liquid outlet 27 is connected to a liquid outlet pipe 17 located on an end surface side of the drum 13 and communicated with the corresponding, and a second one-way valve 18 is arranged on the liquid outlet pipe 17, a second liquid inlet 24 connected with the liquid outlet pipe 17 is arranged on one side of the fertilizing cavity 25, and a plurality of fertilizing through holes 35 communicated with the fertilizing cavity 25 are formed in the area, corresponding to the fertilizing cavity 25, on the surface side of the roller 13.

In this embodiment, as shown in fig. 4, both side surfaces of the digging tooth 1 are arc-shaped curved surfaces, the first hydraulic cavity 23, the first piston 26, the fertilization transfer cavity 32, and the second piston 30 are all arc-shaped, center lines of the first hydraulic cavity 23, the fertilization transfer cavity 32, the first piston 26, and the second piston 30 corresponding to the same digging tooth 1 are located on the same circular track, and a large arc side of a rod-shaped portion of the first piston 26 is completely attached to an inner arc surface of the digging tooth 1. The arc-shaped curved surface of the digging tooth 1 is arranged, so that the digging tooth 1 can better dig and turn soil; correspondingly, the first hydraulic cavity 23, the fertilization relay cavity 32, the first piston 26 and the second piston 30 are arc-shaped, the central lines of the first hydraulic cavity 23, the fertilization relay cavity 32, the first piston 26 and the second piston 30 are limited to be located on the same circular track, and the rod-shaped part of the first piston 26 is completely attached to the excavating tooth 1, so that when the excavating tooth 1 excavates soil, the first piston 26 moves along the arc surface of the corresponding side of the excavating tooth 1, and the first piston 26 can be pushed to move towards the first hydraulic cavity 23 by relatively large pushing force, so that oil in the first hydraulic cavity 23 can be better pushed, the second piston 30 can be pushed, and liquid fertilizer in the fertilization relay cavity 32 can be better pushed.

In the present embodiment, as shown in fig. 4, each of the drill rods 16 is located between two adjacent digging teeth 1, and the head end of each drill rod 16 faces the side of the corresponding digging tooth 1; each fertilization chamber 25 is located between an excavating tooth 1 and a respective drill rod 16. The arrangement enables the drill rod 16 to be accurately positioned after extending out to stir, smash and break up soil blocks loosened by the digging teeth 1, and liquid fertilizer sprayed from the fertilizing cavity 25 is just sprayed on soil loosened by loosening, so that the soil is loosened, broken up and fertilized, the timeliness of operation is strong, and the positioning is accurate.

In this embodiment, as shown in fig. 6, a connecting shaft 21 is fixed at the center of each of the two side end surfaces of the drum 13, two side guards 2 respectively located outside the two side end surfaces of the drum 13 are fixed on the bottom surface of the carrier plate 8, and the connecting shaft 21 is connected to the side guard 2 on the corresponding side through a sealing bearing 41; the driving belt wheel 3 is fixedly sleeved on an output shaft of the motor 4, the driven belt wheel 20 is fixedly sleeved on the connecting shaft 21 corresponding to the side where the driving belt wheel 3 is located, the driving belt 15 is arranged between the driven belt wheel 20 and the driving belt wheel 3 in a surrounding mode, and the carrier plate 8 is provided with a through hole 42 for the driving belt 15 to penetrate through. After the motor 4 is started, the driving pulley 3 can be directly driven to rotate, and the driving pulley can drive the driven pulley 20 to rotate through the driving belt 15, so that the connecting shaft 21 on the side can be driven to rotate, and the rotary driving of the roller 13 can be realized.

In this embodiment, as can be seen from fig. 3 and 6, a conveying channel 22 communicating with the material storage chamber 29 is formed inside the connecting shaft 21 corresponding to the side of the discharging pipe 11, and the sealing bearing 41 connected to the connecting shaft 21 is embedded inside the side baffle 2 corresponding to the side, the output end of the discharging pipe 11 is inserted and fixed on the side baffle 2 corresponding to the side, and the output end of the discharging pipe 11 just abuts against the conveying channel 22 of the connecting shaft 21. The liquid fertilizer in the liquid fertilizer storage box 5 can be discharged through the discharge pipe 11, under the sealing action of the sealing bearing 41, the liquid fertilizer can smoothly enter the storage cavity 29 through the conveying channel 22, and the bottom of the liquid fertilizer storage box 5 is always higher than the storage cavity 29, so that the liquid fertilizer in the liquid fertilizer storage box 5 can continuously flow to the storage cavity 29 until the storage cavity 29 is full of the liquid fertilizer; meanwhile, under the driving of the motor 4, the connecting shaft 21 can rotate relative to the sealing bearing 41 on the corresponding side, that is, the requirement of the rotation of the roller 13 can be met, that is, the continuous feeding of the material storage cavity 29 can be realized while the requirement of the rotation of the roller 13 is met.

In the present embodiment, as shown in fig. 1 and fig. 2, an arc-shaped upper baffle 12 concentric with the drum 13 is disposed above the drum, and the top of the upper baffle 12 is fixed on the carrier plate 8; a push rod 7 is fixed on one side of the carrier plate 8. The upper baffle 12 can be protected above the roller 13, so that the soil can be prevented from splashing; the device can be pushed manually by the push rod 7.

The agricultural soil turning and fertilizing device has the following specific action principle:

after the device is pushed to a specified place through the push rod 7, the side of the roller 13 is tilted upwards in the pushing process, so that the digging tooth 1 can be prevented from accidentally turning soil; when the destination is reached, the carrier plate 8 is horizontally placed, so that the bottom of the roller 13 is contacted with the ground, and then the soil turning and fertilizing operation can be started, specifically: starting the motor 4 and pushing the device to move forward, the motor 4 drives the connecting shaft 21 to rotate through the sequential transmission of the driving pulley 3, the transmission belt 15 and the driven pulley 20, the roller 13 is successfully driven to rotate, the digging tooth 1 rotates along with the rotation, and when the digging tooth rotates downwards from the upper part, the digging tooth can be inserted into the ground and then turns out soil blocks, in the process, the first piston 26 is pushed to move into the first hydraulic cavity 23 by the reaction force of the soil, the oil in the first hydraulic cavity 23 is pushed to enter the second hydraulic cavity 40 through the oil conveying channel 33, the piston plate 34 can move to one side compressing the second spring 38, the drill rod 16 is driven to extend outwards, and the ball 36 in the spiral channel 39 is limited by the arc-shaped groove 37, so that the drill rod 16 cannot directly extend in a translational way, the drill rod 16 rotates by the reaction force of the ball 36 while extending, the spiral channel 39 rotates along with the drill rod to adapt to the position of the balls 36, namely, the balls 36 move along the spiral channel 39 relatively, so that the drill rod 16 extends out while rotating, and soil blocks can be crushed and broken up; meanwhile, after the first piston 26 moves to abut against the second piston 30, the second piston 30 can be pushed to move towards the inner side of the fertilization transfer cavity 32 while oil is pushed, the first spring 28 is compressed, liquid fertilizer in the fertilization transfer cavity 32 can be conveyed to the corresponding fertilization cavity 25 through the liquid outlet pipe 17 under the directional action of the first check valve 19 and the second check valve 18, and the liquid fertilizer is sprayed out of the fertilization through hole 35 and sprayed onto turned soil. The soil block can be smashed, broken and scattered and the fertilizer can be applied while the soil is turned, the soil turning and loosening effect can be improved, the contact area of the soil and the liquid fertilizer can be increased, and the uniformity of the fertilizer application can be improved;

when the excavating tooth 1 rotates along with the roller 13 to be not in contact with soil, the piston plate 34 is reset and moves by the resetting action of the second spring 38, the drill rod 16 can be driven to reset, meanwhile, oil in the second hydraulic cavity 40 can be pushed, the oil which enters the second hydraulic cavity 40 before returns to the first hydraulic cavity 23 through the oil conveying channel 33, and the increase of the oil in the first hydraulic cavity 23 can push the first piston 26 to extend out for resetting; under the reset action of the first spring 28, the second piston 30 can be pushed to reset, so that negative pressure is generated in the fertilization transfer cavity 32, and under the directional action of the first check valve 19 and the second check valve 18, liquid fertilizer in the storage cavity 29 can be sucked through the liquid inlet pipe 14 to be fertilized next time; the liquid fertilizer storage box 5 can timely supplement liquid fertilizer to the material storage cavity 29 through the discharge pipe 11.

According to the invention, the soil turning and fertilizing can be simultaneously carried out, and the soil blocks can be smashed and scattered during soil turning, so that the soil turning and loosening effect can be improved, the contact area of the soil and the liquid fertilizer can be increased, and the uniformity of fertilizing can be improved.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. The agricultural soil turning and fertilizing device comprises a carrier plate (8), wherein a walking roller (10) is connected to the lower portion of the carrier plate (8) through a connecting plate (9), a roller (13) driven by a motor (4) is rotatably connected to the lower portion of the front side of the carrier plate (8), at least one circle of excavating teeth (1) distributed along the circumferential side of the roller (13) are arranged on the surface of the roller (13) at equal intervals along the length direction of the roller, and the agricultural soil turning and fertilizing device is characterized in that a storage cavity (29) is formed in the axis of the roller (13), a liquid fertilizer storage box (5) with a feeding hole (6) at the top is fixed on the carrier plate (8), and a discharging pipe (11) communicated with the storage cavity (29) is connected to the lower end of one side of the liquid fertilizer storage box (5); a first hydraulic cavity (23), a fertilization transfer cavity (32), a second hydraulic cavity (40) and a fertilization cavity (25) which are respectively in one-to-one correspondence with the digging teeth (1) on the same ring are formed in the roller (13);

a first piston (26) extending to the outer side of the roller (13) is hermetically arranged in the first hydraulic cavity (23), the first piston (26) is closely and slidably connected with one side of the corresponding digging tooth (1), and the outer side end of the first piston (26) is aligned with the tip of the digging tooth (1); a piston plate (34) is arranged in the second hydraulic cavity (40) in a sealing way, one side of the piston plate (34) is connected with a drill rod (16) which penetrates and extends to the outer side of the roller (13), an oil delivery channel (33) is communicated between one side of the second hydraulic cavity (40) which is back to the drill rod (16) and one side of the corresponding first hydraulic cavity (23) which is back to the first piston (26), the drill rod (16) is provided with a spiral channel (39) spirally extending along the length of the drill rod, arc-shaped grooves (37) which are respectively positioned at two opposite sides of the drill rod (16) are arranged at the position, through which the drill rod (16) passes, in the roller (13), and a ball (36) is clamped between each arc-shaped groove (37) and the spiral channel (39), a second spring (38) connected to the piston plate (34) is fixed in the second hydraulic chamber (40) on the side corresponding to the drill rod (16);

the fertilization transfer cavity (32) is arranged on one side, back to the corresponding excavating tooth (1), of the first hydraulic cavity (23), a second piston (30) is arranged in the fertilization transfer cavity (32) in a sealing mode, a rod-shaped part of the second piston (30) extends to the inner side of the first hydraulic cavity (23), a sealing piece is arranged at a position, in the roller (13), through which the rod-shaped part of the second piston (30) penetrates, a first spring (28) connected with the second piston (30) is fixed on one side, back to the corresponding first hydraulic cavity (23), of the fertilization transfer cavity (32), a first liquid inlet (31) and a first liquid outlet (27) are arranged on one side, back to the first hydraulic cavity (23), of the fertilization transfer cavity (32), a liquid inlet pipe (14) located on the end face side of the roller (13) and communicated with the liquid cavity (29), and a first one-way valve (19) is arranged on the liquid inlet pipe (14), first liquid outlet (27) are connected with drain pipe (17) that are located the terminal surface side of cylinder (13) and communicate with corresponding fertilization chamber (25), and are equipped with second check valve (18) on drain pipe (17), one side of fertilization chamber (25) is equipped with second inlet (24) of being connected with drain pipe (17), a plurality of fertilization through-holes (35) that communicate with fertilization chamber (25) are seted up in the table side correspondence fertilization chamber (25) place region of cylinder (13).

2. The agricultural soil turning and fertilizing device as claimed in claim 1, wherein both side surfaces of the digging tooth (1) are arc-shaped curved surfaces, the first hydraulic cavity (23), the first piston (26), the fertilization transfer cavity (32) and the second piston (30) are arc-shaped, the center lines of the first hydraulic cavity (23), the fertilization transfer cavity (32), the first piston (26) and the second piston (30) corresponding to the same digging tooth (1) are located on the same circular track, and the large arc side of the rod-shaped part of the first piston (26) is completely attached to the inner arc surface of the digging tooth (1).

3. An agricultural soil turning and fertilizing device as claimed in claim 1, characterised in that each of said drill rods (16) is located between two adjacent digging teeth (1), and the head end of each drill rod (16) faces the side of the corresponding digging tooth (1); each fertilizing cavity (25) is located between the digging tooth (1) and the respective drill rod (16).

4. The agricultural soil turning and fertilizer applying device of claim 1, wherein a connecting shaft (21) is fixed at the center of each of the two side end surfaces of the roller (13), two side guards (2) respectively located at the outer sides of the two side end surfaces of the roller (13) are fixed on the bottom surface of the carrier plate (8), and the connecting shaft (21) is connected to the side guard (2) at the corresponding side through a sealing bearing (41); the fixed cover is equipped with driving pulley (3) on the output shaft of motor (4), and the fixed cover is equipped with driven pulley (20) on connecting axle (21) of corresponding driving pulley (3) place side, and has around drive belt (15) jointly between driven pulley (20) and driving pulley (3), offer opening (42) that supply drive belt (15) to pass on carrier board (8).

5. The agricultural soil turning and fertilizing device as claimed in claim 4, characterized in that a conveying channel (22) communicated with the material storage cavity (29) is formed inside the connecting shaft (21) corresponding to the side of the discharging pipe (11), a sealing bearing (41) connected with the connecting shaft (21) is embedded inside the side baffle (2) on the corresponding side, the output end of the discharging pipe (11) is fixed on the side baffle (2) on the corresponding side in an inserting manner, and the output end of the discharging pipe (11) just abuts against the conveying channel (22) of the connecting shaft (21).

6. The agricultural soil turning and fertilizing device as claimed in claim 1, characterized in that an arc-shaped upper baffle (12) concentric with the roller (13) is arranged above the roller, and the top of the upper baffle (12) is fixed on the carrier plate (8); a push rod (7) is fixed on one side of the carrier plate (8).