Self-propelled electric extended-range spiral ditching fertilizer applicator

By designing a self-propelled electric extended-range spiral ditching and fertilizing machine, the problems of low mechanization level in orchards and short range of electric tracked chassis have been solved, realizing low-noise and long-range orchard fertilization operations, and improving operational efficiency and flexibility.

CN224205693UActive Publication Date: 2026-05-08YANCHENG YANHAI TRACTOR MFG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANCHENG YANHAI TRACTOR MFG
Filing Date
2025-04-17
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The current level of mechanization in orchards is low. Tracked vehicles are noisy and pollute the environment, while electric tracked chassis have short operating times, making it difficult to meet the needs of orchard fertilization operations.

Method used

A self-propelled electric range-extended spiral trenching and fertilizing machine was designed. It adopts a track assembly support, drive wheel and motor reducer unit, equipped with range extender and controller to realize continuous power supply from battery. Combined with lifting spiral trenching and fertilizing mechanism, power is transmitted through sprocket and chain mechanism to realize trenching, fertilization and soil covering operations.

Benefits of technology

It reduces noise pollution, improves battery life, increases operational flexibility and efficiency, enables adjustment of trenching and fertilization depth, and allows for the completion of multiple tasks in one operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of agricultural machinery, in particular to a self-propelled electric range-extending spiral ditching and fertilizing machine, which comprises an electric crawler chassis and a descending type spiral ditching and fertilizing mechanism, a range extender for continuously charging a battery is arranged in the electric crawler chassis, and a feeding mechanism, a ditching and fertilizing mechanism and a lifting mechanism are arranged in the descending type spiral ditching and fertilizing mechanism. The control system controls walking, steering and working of the whole machine. The utility model has the advantages that: firstly, the noise of the diesel engine is reduced, and the environmental pollution is avoided; 2, the cruising ability of a battery of the crawler electric chassis is increased, the operation is more flexible, and the working efficiency is improved; and thirdly, the equipment can realize three operations of spiral ditching, fertilization and soil covering at one time, and the ditching and fertilization depth can be adjusted.
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Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery technology, specifically a self-propelled electric range-extending spiral ditching and fertilizing machine. Background Technology

[0002] my country has the largest orchard planting area in the world, and its fruit production ranks first globally. However, the level of mechanization in orchard production is low, making it difficult to improve the industry's overall level. Currently, some orchard robot products are available in China, which can be used for spraying, weeding, and transportation, improving the intelligence level of orchard machinery. Tracked vehicles are characterized by strong adaptability to various road surfaces and high load-bearing capacity. Diesel-powered tracked chassis are mostly used in outdoor agricultural production activities, but they are noisy and pollute the environment. Currently, electric tracked chassis on the market all use separate battery packs to power the drive motors, resulting in short battery life.

[0003] To address these issues, this invention proposes a self-propelled electric range-extending spiral trenching and fertilizing machine. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a self-propelled electric range-extending spiral trenching and fertilizing machine.

[0005] The technical solution of this utility model includes track assembly brackets 4 on both sides, tensioner wheel assembly 5, and drive wheel 20. The track assembly brackets 4 are provided with evenly distributed load-bearing wheels 2. The drive wheel 20 is fixed to the front end of the track assembly brackets 4 via bearing seats 1. The tensioner wheel assembly 5 is fixed to the rear end of the track assembly brackets 4. The track assembly brackets 4 are fixedly connected to each other via a frame base 19. The key feature is that the drive wheel 20 is connected to a motor reducer unit 18, vertically and fixed to the track assembly brackets 4; the rear half of the frame base 19 is sequentially welded with a first frame 3, a second frame 7, and a third frame 12 from bottom to top. The rear end of the second frame 7 is provided with... It has a handrail 8 and a control panel 9, and the rest of the part stores the battery 6. Above the battery 6, there is also a controller mounting bracket 10. The controller 11 that controls the whole machine and the range extender 13 that continuously supplies power to the battery 6 are both fixed on the controller mounting bracket 10. The front end of the third frame 12 has a column 14 that is the same height as it and connected to it. The column 14 is equipped with a lifting spiral trenching fertilizer applicator B, in which the fertilizer box 28 in the mechanism is fixed on the third frame 12. Both sides of the fertilizer box 28 are equipped with feeding hinges 44, which are driven by separate conveying motors 27. The spiral trenching box 36 is coupled to the column 14 and is parallel to the motor reducer 18 and located behind it.

[0006] The lifting spiral trenching fertilization mechanism B includes a fertilizer box 28, a spiral trenching box body 36, and a spiral trenching fertilization bucket 37. The top of the spiral trenching box body 36 is provided with a conveying trough 35, which is the same width as the fertilizer box 28 and located directly below its top. Both sides of the conveying trough 35 are provided with conveying hinges 43 wound around the shaft 24. The input shaft 38 of the spiral trenching fertilization bucket 37 is connected to the working motor 22 through a telescopic universal coupling 23. The working motor 22 transmits power to the feeding hinge 42 and the conveying hinge 43 again through a sprocket and chain mechanism.

[0007] The sprocket and chain mechanism includes a right-angle gearbox 31 fixed above the conveying trough 35, a shaft 34 supported by bearings on the front side of the conveying trough 35, and a drive sprocket 39 mounted on the input shaft 38. A transition shaft 26 runs through the right-angle gearbox 31. A passive sprocket 29 connected to the drive sprocket 39 via a chain is mounted on the transition shaft 26. The transition shaft 26 transmits power to the feeding auger 42 and the shaft 22 via two pairs of bevel gears. A drive sprocket 41 is mounted on the shaft 22, which transmits power to the passive sprocket 40 on the shaft 34 via a chain. The passive sprockets 33 on both sides of the shaft 34 then transmit power to the passive sprocket 25 on the shaft 24 via a chain, ultimately driving the conveying auger 43 to rotate.

[0008] The fertilizer box 28 has a "W" shaped cross section. The axis of the feeding hinges 44 on both sides is higher than the middle surface 45 of the fertilizer box 28, and a part of the feeding hinges 44 is located above the middle surface 45. The included angle β of the middle surface is 60°-70°.

[0009] The first frame 3 is the same width as the column 14 and is welded and fixed, and the frame base 19 is provided with a mounting plate 21 for fixing the working motor 22.

[0010] A flexible hose 30 is also provided between the conveying trough 35 and the fertilizer box 28 to prevent fertilizer from spilling.

[0011] The column 14 is provided with a linear guide assembly 15. The slider on the linear guide assembly 15 is connected to the lifting bracket 16. An electric push rod 17 is provided between the lifting bracket 16 and the frame base 19. The lifting bracket 16 is fixed to the spiral grooved box 36.

[0012] It also includes a control section consisting of a power supply system and a control system. The power supply system includes a battery 6 that supplies power to the control system and a range extender 13 that continuously replenishes the battery 6. The battery 6 is connected in parallel with all electrical actuators in the control system. The control system includes a controller 11 and connected to it an electric push rod 17, a motor reducer 18, a working motor 22, and a conveyor motor 27. The controller 11 controls the speed of the motor reducers 18 on the left and right sides, enabling the electric tracked chassis A to move forward, stop, reverse, and turn in place. The controller 11 also controls the working motor 22 and the conveyor motor 27 to rotate together, enabling the descending spiral ditching and fertilizing mechanism B to perform ditching, fertilizer mixing, conveying, and fertilizing. The controller 11 also controls the extension and retraction of the electric push rod 17, enabling the descending spiral ditching and fertilizing mechanism B to rise and fall.

[0013] The controller 11 is equipped with corresponding control buttons on the control panel 9.

[0014] Compared with the prior art, this utility model has the following advantages: First, it reduces the noise of the diesel engine and avoids environmental pollution; second, it increases the battery life of the tracked electric chassis and makes the operation more flexible, thus improving work efficiency; third, the equipment can perform three operations at once: spiral trenching, fertilization, and soil covering, and the trenching and fertilization depth is adjustable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 for Figure 1 Structural diagram of the electric tracked chassis A;

[0017] Figure 3 for Figure 2 The left view;

[0018] Figure 4 for Figure 1 Schematic diagram of the lifting spiral trenching fertilization mechanism B;

[0019] Figure 5 A schematic diagram of the lifting spiral trenching fertilization mechanism after removing the fertilizer box (28);

[0020] Figure 6 This is a front sectional view of the fertilizer bin (28);

[0021] Figure 7 This is a schematic diagram of the control system of this utility model.

[0022] In the diagram: 1. Bearing housing; 2. Load-bearing roller; 3. First frame; 4. Track assembly bracket; 5. Tensioner assembly; 6. Battery; 7. Second frame; 8. Handrail; 9. Control panel; 10. Controller mounting bracket; 11. Controller; 12. Third frame; 13. Range extender; 14. Column; 15. Linear guide assembly; 16. Lifting bracket; 17. Electric push rod; 18. Motor reducer unit; 19. Frame base; 20. Drive wheel; 21. Working motor mounting plate; 22. Working motor; 23. Telescopic universal coupling; 24. Shaft 1; 25. Driven sprocket. 1; 26. Transition shaft; 27. Conveyor motor; 28. Fertilizer bin; 29. ​​Passive sprocket 2; 30. Telescopic hose; 31. Right-angle gearbox; 32. Shaft 2; 33. Passive sprocket 3; 34. Shaft 3; 35. Conveying trough; 36. Spiral trenching box; 37. Spiral trenching fertilizer bucket; 38. Input shaft; 39. Drive sprocket 1; 40. Passive sprocket 4; 41. Drive sprocket 2; 42. Feeding hinge; 43. Conveying hinge; 44. Feeding hinge; 45. Intermediate surface; A. Electric tracked chassis; B. Lifting spiral trenching fertilizer application mechanism; β. Intermediate surface angle. Detailed Implementation

[0023] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0024] This utility model consists of the mechanical part and the control part of an electric range-extending spiral trenching fertilizer applicator.

[0025] The electric range extender spiral trenching fertilizer applicator includes track assembly brackets 4 on both sides, tension wheel assembly 5 and drive wheel 20. The track assembly brackets 4 are equipped with evenly distributed load-bearing wheels 2. The drive wheel 20 is fixed to the front end of the track assembly brackets 4 through bearing seats 1. The tension wheel assembly 5 is fixed to the rear end of the track assembly brackets 4. The track assembly brackets 4 are fixedly connected to each other through the frame base 19. The drive wheel 20 is connected to the motor reducer 18 and is vertically fixed to the track assembly bracket 4. The rear half of the frame base 19 is welded with the first frame 3, the second frame 7 and the third frame 12 from bottom to top. The rear end of the second frame 7 is equipped with a handrail 8 and a control panel 9. The remaining part stores the battery 6. Above the battery 6, there is a controller mounting bracket 10. The controller 11 that controls the whole machine and the range extender 13 that continuously supplies power to the battery 6 are both fixed on the controller mounting bracket 10. The drive wheel 20 and the motor reducer 18 are located at the front of the chassis. The main purpose is to increase the weight at the front of the whole machine, increase the grip, and prevent insufficient pressure or the front of the equipment from tilting and being overturned when the spiral trench is opened. The battery 6 and the range extender 13 are located at the rear and above to prevent the battery 6 and the range extender 13 from bumping into each other during agricultural operations and to prevent damage.

[0026] Meanwhile, the front end of the third frame 12 is provided with a column 14 of the same height and connected together. The first frame 3 is the same width as the column 14 and is welded and fixed. The frame base 19 is provided with a mounting plate 21 for fixing the working motor 22. The column 14 is provided with a lifting spiral trenching and fertilizing mechanism B. The column 14 is provided with a linear guide assembly 15. The slider on the linear guide assembly 15 is connected to the lifting bracket 16. An electric push rod 17 is provided between the lifting bracket 16 and the frame base 19. The lifting bracket 16 is fixed to the spiral trenching box 36. This distribution can adjust the center of gravity of the whole machine to the middle point and prevent the equipment from tipping over during operation.

[0027] The lifting spiral trenching fertilization mechanism B includes a fertilizer box 28, a spiral trenching box body 36, and a spiral trenching fertilization bucket 37. The top of the spiral trenching box body 36 is provided with a conveying trough 35, which is the same width as the fertilizer box 28 and located directly below its top. Both sides of the conveying trough 35 are provided with conveying hinges 43 wound around the shaft 24. The input shaft 38 of the spiral trenching fertilization bucket 37 is connected to the working motor 22 through a telescopic universal coupling 23. The working motor 22 transmits power to the feeding hinge 42 and the conveying hinge 43 again through a sprocket and chain mechanism.

[0028] The fertilizer box 28 is fixed on the third frame 12. Both sides of the fertilizer box 28 are equipped with feeding hinges 44, which are driven by separate conveying motors 27. The cross-section of the fertilizer box 28 is "W" shaped. The axis of the feeding hinges 44 on both sides is higher than the middle surface 45 of the fertilizer box 28. A part of the feeding hinges 44 is above the middle surface 45. The included angle β of the middle surface 45 is 60°-70°. This allows the fertilizer above to be fed into the conveying trough 35 under the action of the feeding hinges 44. If the axis of the feeding hinges 44 is lower than the middle surface 45 of the fertilizer box 28, the fertilizer above the middle surface 45 will easily accumulate on it.

[0029] The sprocket and chain mechanism includes a right-angle gearbox 31 fixed above the conveying trough 35, a shaft 34 supported by bearings on the front side of the conveying trough 35, and a drive sprocket 39 on the input shaft 38. A transition shaft 26 runs through the right-angle gearbox 31. A driven sprocket 29 connected to the drive sprocket 39 by a chain is provided on the transition shaft 26. The transition shaft 26 transmits power to the feeding auger 42 and the shaft 22 respectively after conversion by two pairs of bevel gears. A drive sprocket 21 is provided on the shaft 22, which transmits power to the driven sprocket 40 on the shaft 34 by a chain. Then, the driven sprockets 33 on both sides of the shaft 34 transmit power to the driven sprocket 25 on the shaft 24 by a chain, ultimately driving the conveying auger 43 to rotate.

[0030] The lifting spiral ditching and fertilizing mechanism B, located in front of the battery 6, has another advantage: it can clear away hard lumps, gravel, and other debris in the field, preventing damage to the battery and motor behind it and extending their service life.

[0031] To improve the fertilization rate, a flexible hose 30 is provided between the conveying trough 35 and the fertilizer box 28 to prevent fertilizer from spilling.

[0032] The control section includes a power supply system and a control system;

[0033] The power supply system includes a battery 6 that supplies power to the control system and a range extender 13 that continuously replenishes the battery 6. The battery 6 is connected in parallel with all electrical actuators in the control system, thus ensuring that each electrical actuator can be repaired individually if a problem occurs.

[0034] The control system includes a controller 11 and an electric push rod 17, a motor reducer 18, a working motor 22, and a conveyor motor 27 connected to it. The controller 11 controls the speed of the motor reducer 18 on the left and right sides respectively, realizing the forward movement, stopping, reversing, and turning in place of the electric tracked chassis A. The controller 11 also controls the working motor 22 and the conveyor motor 27 to rotate together, realizing the ditching and fertilizing mechanism B of the descending spiral ditching and fertilizing mechanism B to perform ditching, fertilizer mixing, conveying, and fertilizing. The controller 11 also controls the extension and retraction of the electric push rod 17, realizing the raising and lowering of the descending spiral ditching and fertilizing mechanism B.

[0035] The controller 11 is equipped with corresponding control buttons on the control panel 9 for easy manual operation.

Claims

1. A self-propelled electric extended-range spiral trenching fertilizer applicator, comprising track assembly brackets (4) on both sides, tension wheel assembly (5) and drive wheel (20), wherein the track assembly brackets (4) are provided with evenly distributed load-bearing wheels (2), the drive wheel (20) is fixed to the front end of the track assembly brackets (4) through bearing seats (1), the tension wheel assembly (5) is fixed to the rear end of the track assembly brackets (4), and the track assembly brackets (4) are fixedly connected to each other through a frame base (19), characterized in that: The drive wheel (20) is connected to the motor reducer unit (18) and is vertically fixed on the track assembly bracket (4); the rear half of the frame base (19) is welded with the first frame (3), the second frame (7) and the third frame (12) from bottom to top. The tail end of the second frame (7) is provided with a handrail (8) and a control panel (9), and the rest of the part stores the battery (6). Above the battery (6) is a controller mounting bracket (10). The controller (11) that controls the whole machine and the range extender (13) that continuously supplies power to the battery (6) are both Fixed on the controller mounting bracket (10), the front end of the third frame (12) is provided with a column (14) of the same height and connected together; the column (14) is provided with a lifting spiral trenching fertilization mechanism B, the fertilizer box (28) in the lifting spiral trenching fertilization mechanism B is fixed on the third frame (12), the fertilizer box (28) is provided with feeding hinges (44) on both sides, and is driven by separate conveying motors (27). The spiral trenching box body (36) is coupled to the column (14) and is parallel to the motor reducer group (18) and located behind it.

2. The self-propelled electric range-extending spiral trenching and fertilizing machine according to claim 1, characterized in that: The lifting spiral trenching fertilization mechanism B includes a fertilizer box (28), a spiral trenching box body (36), and a spiral trenching fertilization bucket (37). The top of the spiral trenching box body (36) is provided with a conveying trough (35) that is the same width as the fertilizer box (28) and located directly below its top. Both sides of the conveying trough (35) are provided with conveying hinges (43) wound around shaft one (24). The input shaft (38) of the spiral trenching fertilization bucket (37) is connected to the working motor (22) through a telescopic universal coupling (23). The working motor (22) transmits power to the feeding hinge (42) and the conveying hinge (43) again through a sprocket and chain mechanism.

3. The self-propelled electric range-extending spiral trenching and fertilizing machine according to claim 2, characterized in that: The sprocket and chain mechanism includes a right-angle gearbox (31) fixed above the conveying trough (35), a shaft three (34) supported by bearings on the front side of the conveying trough (35), and a drive sprocket one (39) on the input shaft (38). A transition shaft (26) runs through the right-angle gearbox (31). A passive sprocket two (29) connected to the drive sprocket one (39) by a chain is provided on the transition shaft (26). The transition shaft (26) transmits power to the feeding auger (42) and the shaft two (32) respectively after being converted by two pairs of bevel gears. A drive sprocket two (41) is provided on the shaft two (32). The power is transmitted to the passive sprocket four (40) on the shaft three (34) by a chain. Then, the passive sprocket three (33) on both sides of the shaft three (34) transmits the power to the passive sprocket one (25) on the shaft one (24) by a chain, and finally drives the conveying auger (43) to rotate.

4. The self-propelled electric range-extending spiral trenching and fertilizing machine according to claim 1, characterized in that: The fertilizer box (28) has a "W" shaped cross section. The axis of the feeding hinges (44) on both sides is higher than the middle surface (45) of the fertilizer box (28), and a part of the feeding hinges (44) is located above the middle surface (45). The included angle β of the middle surface is 60°-70°.

5. The self-propelled electric range-extending spiral trenching and fertilizing machine according to claim 1, characterized in that: The first frame (3) is the same width as the column (14) and is welded and fixed, and the frame base (19) is provided with a mounting plate (21) for fixing the working motor (22).

6. A self-propelled electric range-extending spiral trenching and fertilizing machine according to claim 2, characterized in that: A flexible hose (30) is also provided between the conveying trough (35) and the fertilizer box (28) to prevent fertilizer from spilling.

7. The self-propelled electric range-extending spiral trenching and fertilizing machine according to claim 1, characterized in that: The column (14) is provided with a linear guide assembly (15), the slider on the linear guide assembly (15) is connected to the lifting bracket (16), and an electric push rod (17) is provided between the lifting bracket (16) and the frame base (19). The lifting bracket (16) is fixed to the spiral groove box (36).

8. A self-propelled electric range-extending spiral trenching and fertilizing machine according to claim 1, characterized in that: It also includes a control section consisting of a power supply system and a control system; the power supply system includes a battery (6) that supplies power to the control system and a range extender (13) that continuously replenishes the battery (6) with power. The battery (6) is connected in parallel with all electrical actuators in the control system; the control system includes a controller (11) and an electric push rod (17), a motor reducer (18), a working motor (22), and a conveyor motor (27) connected to it respectively. The controller (11) controls the speed of the motor reducer (18) on the left and right sides respectively, so as to realize the forward movement, stop, reverse movement, and turning in place of the electric tracked chassis A; the controller (11) controls the working motor (22) and the conveyor motor (27) to rotate together, so as to realize the ditching, fertilizer mixing, conveying and fertilizing of the descending spiral ditching and fertilizing mechanism B; the controller (11) controls the extension and retraction of the electric push rod (17) to realize the raising and lowering of the descending spiral ditching and fertilizing mechanism B; the controller (11) is provided with corresponding control buttons on the control panel (9).