Piston type side deep fertilization anti-blocking device

Abstract

The invention discloses a piston type side deep fertilization anti-blocking device which comprises a fertilizer box, a fan, a material conveying pipe, a blanking pipe and a piston, one end of the material conveying pipe is communicated with the fertilizer box, the other end of the material conveying pipe is communicated with the blanking pipe, and the piston is arranged in the blanking pipe and reciprocates towards a blanking opening of the blanking pipe in the blanking pipe. And an air blowing opening of the fan is communicated with the material conveying pipe and faces the feeding direction of the material conveying pipe. The problems of blockage and adaptability of a traditional device under the working conditions of high straw returning and complex fertilizer are effectively solved, and the fertilization uniformity and the fertilizer utilization rate are remarkably improved; a 2000 mu field verifies that the device is adaptive to a mainstream rice transplanter type, the use effect is good, and the maintenance cost is low.

Description

Technical Field

[0001] The present invention relates to a piston-type side deep fertilization anti-blocking device. Background Art

[0002] The screw strong-pushing type and the air-blowing type are two common existing devices for realizing side deep fertilization of rice.

[0003] In the screw strong-pushing type of side deep fertilization, a DC motor is used to forcibly drive the fertilizer conveying screw to rotate. The movement of the screw groove is used to convey the fertilizer from the storage end to the fertilizer discharging port, and finally discharge it into the rice paddy mud to complete the fertilization operation.

[0004] The structure design is relatively simple. Depending on the forced pushing method of the motor-driven screw, it can provide stable fertilizer conveying power and ensure a certain fertilization efficiency under ideal working conditions. Its disadvantages are: poor adaptability to the field environment. In the scenario of high straw returning to the field, the straw is extremely easy to wind around the screw, resulting in the interruption of fertilizer discharge; the fertilizer adaptation range is narrow, with strict requirements for particle hardness and particle size. When the fertilizer is broken or damp, it is easy to block the screw groove and the fertilizer discharging channel, affecting the continuity of fertilization.

[0005] In the air-blowing type of side deep fertilization, the wind generated by the blower is relied on. Under the dual action of its own gravity and wind force, the fertilizer is quantitatively discharged into the rice paddy mud through the conveying pipeline to complete the side deep fertilization operation. With the help of wind diffusion, the uniformity of fertilizer distribution in the field can be improved; the structure is relatively simple, and the difficulty of daily maintenance operation is relatively low. Its disadvantages are: sensitive to the external environment. When the natural wind speed in the field or the wind force of the blower fluctuates, it is easy to cause fertilizer drift loss, affecting the fertilization accuracy; in a humid environment, the fertilizer is easy to adhere to the inner wall of the conveying pipeline after absorbing moisture, causing blockage, and if the air distribution pipe design is unreasonable, there are significant differences in the fertilization amount of each row. Summary of the Invention

[0006] The present invention provides a piston-type side deep fertilization anti-blocking device to solve the problems existing in the above-mentioned prior art.

[0007] The technical solutions adopted by the present invention are as follows: A piston-type side deep fertilization anti-blocking device includes a fertilizer tank, a blower, a feeding pipe, a blanking pipe, and a piston. One end of the feeding pipe is communicated with the fertilizer tank, and the other end is communicated with the blanking pipe. The piston is arranged in the blanking pipe and makes a reciprocating motion in the blanking pipe towards the blanking port of the blanking pipe. The blowing port of the blower is communicated with the feeding pipe and faces the feeding direction of the feeding pipe.

[0008] Further, the blanking pipe includes a material receiving pipe and a material feeding pipe. One end of the material receiving pipe is communicated with the tail port of the feeding pipe, and the other end is communicated with the material feeding pipe. The piston is arranged in the material feeding pipe and makes a reciprocating motion along the axis direction of the material feeding pipe.

[0009] Further, a linear bearing mount is fixed inside the feeding pipe. A linear bearing is assembled on the linear bearing mount. A guide rod is fixed to the top end of the piston, and the guide rod is engaged with the linear bearing.

[0010] Further, the piston is driven by a crank mechanism to achieve the reciprocating motion.

[0011] Further, a blowing pipe is connected to the material conveying pipe. The blowing port of the blower is connected to the blowing pipe, and a wind pressure sensor is connected to the blowing pipe.

[0012] Further, a blanking device is provided at the discharge port of the fertilizer box. The blanking device includes a motor, a fan impeller, and a housing having a feed inlet and a discharge outlet. The feed inlet of the housing is communicated with the discharge port of the fertilizer box, the discharge outlet of the housing is communicated with the feed inlet of the blanking pipe, the fan impeller is rotatably connected inside the housing, and the motor is arranged outside the housing and drives the fan impeller to rotate.

[0013] Further, a switch plate and a grain level sensor are also provided at the discharge port of the fertilizer box.

[0014] The present invention has the following beneficial effects: The present invention effectively solves the problems of blockage and adaptability of traditional devices under the conditions of high straw returning to the field and complex fertilizer working conditions, significantly improving the fertilization uniformity and the utilization rate of chemical fertilizers; through the verification of 2000 mu of fields, this device is compatible with mainstream transplanter models, has good use effects, and low maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural diagram of the present invention.

[0016] Figure 2 and Figure 3 is an assembly drawing of the piston and the blanking pipe.

[0017] Figure 4 is an assembly drawing of the blower and the material conveying pipe.

[0018] Figure 5 is a structural diagram of the blanking device.

[0019] Figure 6 is an application diagram of this product on the transplanter. DETAILED DESCRIPTION OF THE INVENTION

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] As Figure 1As shown in the figure, a piston - type side - deep fertilization anti - clogging device of the present invention includes a fertilizer box 1, a blower 2, a feeding pipe 3, a blanking pipe 4, and a piston 5. One end of the feeding pipe 3 is connected to the fertilizer box 1 in communication, and the other end is connected to the blanking pipe 4 in communication. The piston 5 is arranged in the blanking pipe 4 and makes a reciprocating motion in the blanking pipe towards the blanking port of the blanking pipe. The blowing port of the blower 2 is connected to the feeding pipe 3 in communication and faces the feeding direction of the feeding pipe 3.

[0022] As Figure 2 and Figure 3 , the blanking pipe 4 includes a material - receiving pipe 41 and a feeding pipe 42. The material - receiving pipe 41 and the feeding pipe 42 form a certain angle with each other. The material - receiving pipe 41 is fixed on the outer wall of the feeding pipe 42 and is connected to the feeding pipe 42 in communication. The material - receiving pipe 41 is connected to the tail port of the feeding pipe 3 in communication. The piston 5 is arranged in the feeding pipe 42 and makes a reciprocating motion along the axis direction of the feeding pipe 42.

[0023] The piston 5 realizes the reciprocating motion through a crank mechanism. The crank mechanism includes a driving motor 61 and a multi - link 62. One end of the multi - link 62 is fixed to the motor shaft of the driving motor 61, and the other end is hinged to the piston 5. To facilitate the installation of the driving motor 61, a motor mounting seat 8 is fixed on the outer wall of the blanking pipe 4, and the driving motor 61 is fixed on the motor mounting seat 8.

[0024] To facilitate the stable and smooth movement of the piston 5, a linear bearing mounting seat 51 is fixed in the feeding pipe 42. A linear bearing is assembled on the linear bearing mounting seat 51. A guide rod is fixed to the top of the piston 5, and the guide rod cooperates with the linear bearing. The multi - link 62 is hinged to the guide rod.

[0025] To prevent the conveyed granular materials from affecting the blower 2, a separate feeding pipe 3 is connected to the feeding pipe 3, and a blowing pipe 31 is connected to the feeding pipe 3 in communication. The blowing port of the blower 2 is connected to the blowing pipe 31 in communication.

[0026] A wind pressure sensor 32 is also connected to the blowing pipe 31. By sensing the change in wind pressure in the feeding pipe 3 through the wind pressure sensor 32, it is determined whether the feeding pipe 3 is blocked.

[0027] As Figure 4 and Figure 5 , the lower half of the fertilizer box 1 is in a conical - hopper shape. A switch plate 11 and a grain - level sensor 12 are provided at the discharge port of the fertilizer box 1. The switch plate 11 is used to open and close the discharge port of the fertilizer box 1. The grain - level sensor 12 is used to detect whether there is material coming out of the discharge port of the fertilizer box 1. If there is no material coming out, an alarm is given to prompt for supplementary feeding.

[0028] A blanking device 7 is also provided at the discharge port of the fertilizer box 1. The blanking device 7 is to further ensure that the granular materials in the fertilizer box 1 can fall smoothly.

[0029] The blanking device 7 includes a motor 71, a fan impeller 72 (grooved wheel structure), and a housing 73 having a feed inlet and a discharge outlet. The feed inlet of the housing 73 is communicated with the discharge outlet of the fertilizer tank 1, and the discharge outlet of the housing 73 is communicated with the feed inlet of the blanking pipe. The fan impeller 72 is rotatably connected inside the housing 73, and the motor 71 is arranged outside the housing and drives the fan impeller to rotate.

[0030] Figure 6 This is the application diagram of the product on the transplanter. After the driving motor 61 is started, it drives the multi-link 62 to operate, driving the piston 5 to move upward to the top of the feed pipe 42. The fertilizer quickly enters the feed pipe 42 from the material receiving pipe 41. Then, the piston moves downward driven by the multi-link 62, and with mechanical thrust, strongly ejects the fertilizer from the discharge outlet of the feed pipe 42. The fertilizer flows along the feed pipe 42 and is injected into the trench opened by the furrow opener. The driving motor 61 is a speed-regulating motor, which can adjust the speed in real time according to the operation frequency of the transplanter, accurately control the reciprocating movement frequency of the piston, and achieve precise fertilization. In terms of anti-clogging design, the piston-type fertilizer applicator adopts a mechanical ejection design. The piston directly contacts the fertilizer, and can effectively break the blockage of the fertilizer outlet caused by soil caking or damp fertilizer by physical extrusion, greatly reducing the risk of blockage.

[0031] The fan 2 is used to generate wind power, and blows the fertilizer output by the fan impeller through the conveying pipe 3 to the feed inlet of the blanking pipe 4 to complete the fertilizer transportation.

[0032] The structure of this application can drive the driving motor 61, the motor 71, and the fan 2 through PLC program linkage. When the piston is lifted, the fan impeller rotates to transport fertilizer and the fan blows fertilizer. When the piston drops, the fan impeller and the fan stop.

[0033] At the same time, the piston movement can also be linked with the transplanter's transplanting frequency, and fertilizer is only pushed during transplanting, avoiding ineffective fertilization during non-transplanting stages and improving the accuracy of fertilization.

[0034] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, several improvements can be made without departing from the principle of the present invention, and these improvements should also be regarded as the protection scope of the present invention.

Claims

1. A piston-type side deep fertilization anti-blocking device, characterized in that: The utility model comprises a fertilizer box (1), a fan (2), a feed pipe (3), a feed pipe (4) and a piston (5); one end of the feed pipe (3) is connected to the fertilizer box (1), and the other end is connected to the feed pipe (4); the piston (5) is arranged in the feed pipe (4) and reciprocates in the feed pipe in the direction of the feed opening of the feed pipe; the air outlet of the fan (2) is connected to the feed pipe (3) and faces the feeding direction of the feed pipe (3).

2. The piston-type side deep fertilization anti-blocking device according to claim 1, characterized in that: The material drop pipe (4) comprises a material receiving pipe (41) and a material feeding pipe (42); one end of the material receiving pipe (41) is connected to the rear end of the material delivery pipe (3), and the other end is connected to the material feeding pipe (42); a piston (5) is arranged in the material feeding pipe (42) and reciprocates along the axial direction of the material feeding pipe.

3. The piston-type side deep fertilization anti-blocking device according to claim 2, characterized in that: A linear bearing mounting seat (51) is fixed inside the feeding tube (42), a linear bearing is mounted on the linear bearing mounting seat (51), and a guide rod is fixed on the top end of the piston (5), the guide rod cooperates with the linear bearing.

4. The piston-type side deep fertilization anti-blocking device according to claim 1, characterized in that: The piston (5) is driven by a crank mechanism to achieve the reciprocating motion.

5. The piston-type side deep fertilization anti-blocking device according to claim 1, characterized in that: The material conveying pipe (3) is connected to an air blowing pipe (31), an air blowing port of the fan (2) is connected to the air blowing pipe (31), and an air pressure sensor (32) is connected to the air blowing pipe (31).

6. The piston-type side deep fertilization anti-blocking device according to claim 1, characterized in that: The discharge port of the fertilizer box (1) is provided with a dropper (7), the dropper (7) comprising a motor (71), an impeller (72) and a housing (73) having a feed port and a discharge port, the feed port of the housing (73) being in communication with the discharge port of the fertilizer box (1), the discharge port of the housing (73) being in communication with the feed port of the dropper pipe, the impeller (72) being rotatably connected in the housing (73), and the motor (71) being arranged outside the housing and driving the impeller to rotate.

7. The piston-type side deep fertilization anti-blocking device according to claim 1, characterized in that: The discharge port of the fertilizer box (1) is also provided with a switch plate (11) and a grain position sensor (12).

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