A fully electric seeder

By configuring an angle self-adjusting solar system and an electric cylinder-driven sprocket clutch in the electric seeder, the problems of insufficient power supply and uneven seeding are solved, and the continuous power supply and effective switching of sowing states are achieved, and seed waste and uneven seed seeds are avoided.

CN113615350BActive Publication Date: 2025-03-21ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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Patent Information

Application Number
CN202110896333.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-08-05
Publication Date
2025-03-21
Estimated Expiration
2041-08-05

AI Technical Summary

Technical Problem

Existing electric seeders are prone to seeding incorrectly during the sowing process, and insufficient power supply leads to short service time in the equipment, and uneven seeding in the gravity-controlled sowing mode.

Method used

The continuous power supply of the electric seeder is achieved by arranging self-adjusting solar energy system, and the effective switching between seeding and empty operation state is achieved by combining the electric cylinder-driven sprocket clutch.

Benefits of technology

The working time of the seeds is extended, the waste of seeds is avoided, and the uniformity and efficiency of sowing are achieved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a fully electric seeder, comprising a frame and a power supply unit, a sowing unit, a fertilizing unit, a driving wheel and a soil pressing wheel connected to the frame, wherein the power supply unit is arranged on one side of the frame, the driving wheel is arranged below the frame and connected to the power supply unit, the soil pressing wheel is arranged on the other side of the frame, and the sowing unit and the fertilizing unit are arranged between the driving wheel and the soil pressing wheel. The present invention improves the endurance of the fully electric seeder by arranging a solar energy system; the real-time adjustment of the position of the solar panel is achieved through the turnover motion of the planetary gear mechanism, and the invention has the advantages of simple structure, high adjustment accuracy and good stability; the electric connection and disconnection between the active sprocket and the driven sprocket of the blanking mechanism are achieved by arranging a sprocket clutch mechanism, and the switching between the working state and the non-working state is effectively achieved, thereby avoiding the waste of seeds.
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Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and in particular to a full-electric seeder. Background Art

[0002] At present, the seed drills in agricultural production are generally driven by diesel engines. Diesel engines have high power, but they are also prone to polluting the atmosphere and soil. The high price and low efficiency of diesel engine-driven seed drills restrict the large-scale promotion of small seed drills. Electric energy, as a clean and efficient energy source, is increasingly used in various types of mechanical equipment. As a small seed drill, the bean seed drill can solve the above problems well by using electric energy drive.

[0003] At present, most of the seed dropping mechanisms of electric seeders adopt linkage mode (i.e. the mode of wheel power driving seed dropping). There is a problem with this mode. When the seeder moves forward, the rotation of the wheel will drive the action of the dropping mechanism. If there are seeds left in the dropping box, it is easy to cause the seeds to be sown by mistake.

[0004] Existing electric seeders (such as soybean seeders) mainly use an external power source or a gravity-controlled sowing mode, both of which have certain disadvantages. The external power source mode increases the power load of the seeder. Two sets of 12V lithium battery packs can provide the equipment with 4 or 5 hours of high-intensity operation. Under the power loss of the external power source, the use time will be further reduced. There is often no 220V power supply facility in outdoor sowing places. The disadvantages of electric seeders in power supply are further highlighted. Therefore, when vigorously promoting electric seeders, it is necessary to consider reducing energy consumption as much as possible. Although the gravity-controlled sowing mode has significantly reduced energy consumption, the sowing of seeds is random under the action of gravity, resulting in uneven sowing and affecting the growth environment of crops.

[0005] Therefore, technicians in this field are committed to developing an electric seeder to solve the problems existing in existing devices, realize continuous power supply of the electric seeder, and effectively switch between working state and non-working state, thereby avoiding waste of seeds. Summary of the invention

[0006] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to realize continuous power supply of the electric seeder by configuring an angle self-adjusting solar energy system; and to realize effective switching between the sowing and idling states by configuring a sprocket clutch driven by an electric cylinder.

[0007] In order to achieve the above-mentioned object, the present invention provides a fully electric seed drill, comprising a frame and a power supply unit, a seeding unit, a fertilizing unit, a driving wheel and a soil pressing wheel connected to the frame, wherein the power supply unit is arranged on one side of the frame, the driving wheel is arranged below the frame and connected to the power supply unit, the soil pressing wheel is arranged on the other side of the frame, and the seeding unit and the fertilizing unit are arranged between the driving wheel and the soil pressing wheel;

[0008] The power supply unit includes a motor, a battery pack and a solar energy system. The motor is connected to the driving wheel, the battery pack is connected to the motor, and the solar energy system is connected to the battery pack. The collected solar energy is stored in the battery pack in real time to provide energy for the motor.

[0009] The sowing unit and the fertilizing unit are respectively provided with a sowing sprocket and a fertilizing sprocket, the sowing sprocket is connected to the fertilizing sprocket, the soil pressing wheel is connected to the relatively arranged driving sprocket and the driven sprocket, the driven sprocket is connected to the fertilizing sprocket through a chain, and the driven sprocket is connected to a sprocket clutch mechanism for controlling the connection and separation of the driving sprocket and the driven sprocket.

[0010] Further, the solar energy system includes a solar panel, a sun gear, a planetary gear, a gear ring, a planetary gear driving a rotating disk, a second connecting shaft, a connecting rod, a first connecting rod and a supporting rod;

[0011] Among them, the sun gear coincides with the central axis of the ring gear, the planetary gear is arranged on the outer periphery of the sun gear, and makes circumferential motion around the sun gear in the inner ring of the ring gear, the planetary gear drives the turntable to be arranged on the outer ring of the planetary gear, the second connecting shaft is fixed on the planetary gear drives the turntable, the two ends of the first connecting rod are respectively connected to the solar panel and the second connecting shaft, the connecting rod and one end of the support rod are connected to the first connecting rod, the other end of the connecting rod is connected to the solar panel, and the other end of the support rod is fixed on the frame, and the angle of the solar panel is adjusted by rotating the turntable driven by the planetary gear.

[0012] Furthermore, the sprocket clutch mechanism includes a power mechanism, a guide mechanism and a separation mechanism, the power mechanism includes a first electric cylinder, a push rod and a first connecting shaft connected in sequence, the first electric cylinder is used to drive the push rod and the first connecting shaft, the guide mechanism is used to limit the axial linear movement of the first connecting shaft and the separation mechanism, the separation mechanism is used to realize the separability of the power mechanism and the clutch mechanism, and the clutch mechanism includes a driving sprocket and a driven sprocket arranged relatively to each other.

[0013] Further, the guide mechanism includes a first sliding bearing group and a second sliding bearing group, the first sliding bearing group is close to the push rod side, the first connecting shaft can slidably pass through the first sliding bearing group, the first sliding bearing group includes a first sliding bearing seat and a first copper sleeve, which is used to limit the axial linear movement of the first connecting shaft; the second sliding bearing group is close to the driven sprocket side, the separation mechanism passes through the second sliding bearing group, the second sliding bearing group includes a second sliding bearing seat and a second copper sleeve, which is used to limit the axial linear movement of the separation mechanism.

[0014] Furthermore, the separation mechanism includes a thrust ball bearing, which includes a tightening ring, a loose ring and a rolling body located between the tightening ring and the loose ring, the first connecting shaft passes through the thrust ball bearing, the inner ring of the tightening ring of the thrust ball bearing is fastened to the first connecting shaft, and the loose ring of the thrust ball bearing is fixedly connected to the clutch mechanism.

[0015] Furthermore, the separation mechanism also includes a gland nut, a connecting bar and a return nut, the gland nut is fixed on the second sliding bearing group and is in detachable contact with the tightening ring of the thrust ball bearing, the loose ring outer ring of the thrust ball bearing is fastened in the connecting bar, the connecting bar can be slidably inserted into the second sliding bearing group, and the return nut is fixed at the distal end of the first connecting shaft and is in detachable contact with the loose ring of the thrust ball bearing.

[0016] Furthermore, the first sliding bearing group and the second sliding bearing group also include adjustable fasteners, and the adjustable fasteners are used to adjust the positions of the first connecting shaft and the separation mechanism to achieve circumferential matching of the driving sprocket and the driven sprocket.

[0017] Furthermore, the driving sprocket is provided with insertion holes evenly arranged along the circumferential direction facing the driven sprocket, and the driven sprocket is correspondingly provided with insertion pieces evenly arranged along the circumferential direction facing the driving sprocket.

[0018] Furthermore, it also includes an interference pin, which connects the driven sprocket to the connecting bar.

[0019] Furthermore, the frame is connected to the soil press wheel through a support rod, and a shoveling depth adjustment mechanism is provided on the support rod, and the shoveling depth adjustment mechanism includes a clamping rod, a guide rod, a telescopic screw, a locking component, a second connecting rod, a third connecting rod and a second electric cylinder. The height of the soil press wheel relative to the sowing unit and the fertilizing unit is adjusted by adjusting the position of the telescopic screw. The clamping rod is fixed to the frame through the guide rod, and the locking component is fixed to the frame. The clamping rod and the locking component are used to fix the telescopic screw. The second electric cylinder is fixed to the frame, and one end of the second electric cylinder is connected to the second connecting rod and the third connecting rod in sequence, and the third connecting rod is fixed to the frame.

[0020] Beneficial effects of the present invention:

[0021] 1. The solar energy system can increase the battery life of the battery pack, thereby extending the working time of the planter, and has the advantages of energy saving, high efficiency, and environmental protection.

[0022] 2. The solar energy system realizes real-time adjustment of the position of the solar panel through the rotation of the planetary gear mechanism, and has the advantages of simple structure, high adjustment accuracy and good stability.

[0023] 3. The sprocket clutch can realize the electric connection and disconnection between the active sprocket and the driven sprocket of the blanking mechanism, realize the effective switching between the working state and the non-working state of the sowing unit and the fertilizing unit, and avoid the waste of seeds.

[0024] 4. Choose electric cylinder as the driver of the clutch. Compared with traditional hydraulic cylinders and air cylinders, electric cylinders do not require hydraulic oil or air as a medium, and their performance is not easily affected by the external environment. They do not require complex pumps and valves like hydraulic systems. They have the advantages of simple structure, high precision, fast response, and high stability. They are a substitute for traditional hydraulic cylinders and air cylinders, meet the needs of many workplaces, and have broad market prospects.

[0025] 5. During the movement of the driving and driven sprockets, the separation between the power mechanism and the clutch mechanism is achieved through the thrust ball bearing, which has a simple structure, reliable connection and good stability.

[0026] 6. The electrically controlled clutch mechanism can realize real-time action during the operation of the equipment.

[0027] 7. The shovel depth adjustment mechanism can adjust the height of the soil pressing wheel relative to the sowing unit and the fertilization unit to meet the use requirements of different sowing and fertilization depths. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the structure of a fully electric seed drill provided by an embodiment of the present invention;

[0029] Figure 2 A schematic diagram of the structure of a solar energy system provided by an embodiment of the present invention;

[0030] Figure 3 A schematic diagram of the structure of a clutch provided by an embodiment of the present invention;

[0031] Figure 4 A schematic structural diagram of a shovel depth adjustment mechanism provided in one embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 1: driving sprocket, 2: insert, 3: driven sprocket, 4: return nut, 5: second sliding bearing seat, 6: second copper sleeve, 7: hexagon socket bolt, 8: connecting bar, 9: gland nut, 10: first sliding bearing seat, 11: first copper sleeve, 12: first connecting shaft, 13: first electric cylinder, 13a: push rod, 14: thrust ball bearing, 15: interference pin, 16: operation box, 17: handle, 18: sprocket clutch, 19: soil pressing wheel, 20: shovel depth adjustment mechanism, 21: tail transmission chain, 22: fertilizer drop mechanism sprocket, 23: fertilizer bucket, 24: intermediate transmission chain, 25: seed drop mechanism sprocket, 26: seed bucket, 27: Motor sprocket, 28: motor, 29: motor drive chain, 30: electric control box, 31: frame, 32: solar energy system, 33: sun gear, 34: planetary frame, 35: planetary gear, 36: gear ring, 37: planetary gear drives turntable, 38: second connecting shaft, 39: first connecting rod, 40: solar panel, 41: support rod, 42: connecting rod, 43: fixed frame, 44: driving wheel, 45: driving wheel sprocket, 46: sowing shovel, 47: fertilizer shovel, 20-1: second connecting rod, 20-2: second electric cylinder, 20-3: third connecting rod, 20-4: guide rod, 20-5: clamping rod, 20-6: telescopic screw, 20-7: locking component. DETAILED DESCRIPTION

[0034] The following describes several preferred embodiments of the present invention with reference to the drawings in the specification, so that the technical content is clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned in the text.

[0035] In the drawings, components with the same structure are indicated by the same numerical reference numerals, and components with similar structures or functions are indicated by similar numerical reference numerals. The size and thickness of each component shown in the drawings are arbitrarily shown, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of the components is appropriately exaggerated in some places in the drawings.

[0036] Example 1

[0037] like Figure 1 As shown, the all-electric seed drill provided in this embodiment includes a frame 31, a power supply unit, a seeding unit, a fertilizing unit, a driving wheel 44 and a soil pressing wheel 19. The following is a detailed description of each part:

[0038] The power supply unit is located on one side of the frame 31, including a motor sprocket 27, a motor 28, a motor transmission chain 29, an electric control box 30, a solar system 32 and a battery pack. The electric control box 30 and the motor 28 are arranged at the head of the frame 31. The motor 28 drives the driving wheel sprocket 45 located on the shaft of the driving wheel 44 through the motor sprocket 27 and the motor transmission chain 29 to provide driving force for the travel of the all-electric seed drill. The battery pack is connected to the motor to provide a power source for the motor.

[0039] The solar energy system 32 is used to provide solar energy to the battery pack and collect the output voltage of the solar panel in real time through the voltage sensor to ensure that the voltage is above 28 volts. Since the intensity of sunlight varies in different time periods, the specific position of the solar panel needs to be adjusted in real time. The structure of the solar energy system 32 is as follows Figure 2 As shown, it includes a sun gear 33, a planetary carrier 34, a planetary gear 35, a ring gear 36, a planetary gear driven turntable 37, a second connecting shaft 38, a first connecting rod 39, a solar panel 40, a support rod 41, a connecting rod 42, and a fixed frame 43. The central axis of the sun gear 33 coincides with the ring gear 36. The planetary gear 35 is arranged on the outer periphery of the sun gear 33. The 24V servo motor controls the sun gear 33. The sun gear 33 drives the planetary gear 35 to move circumferentially along the outer ring of the sun gear 33 in the inner ring of the ring gear 36; a planetary gear driven turntable 37 is installed on the three planetary gears 35, and the planetary gear driven turntable 37 has a second connecting shaft 38. The second connecting shaft 38 can move around the sun gear 33 along the planetary gear driven turntable 37. The second connecting shaft 38 drives the first connecting rod 39, the first connecting rod 39 drives the connecting rod 42, the connecting rod 42 is connected to the fixing frame 43, the fixing frame 43 is located on the frame 31, the support rod 41 is connected to the first connecting rod 39, forming a triangular stable structure, the first connecting rod 39 and the support rod 41 are connected to the solar panel 40, and a long hole is set at the connection between the solar panel 40 and the connecting rod 39, which is conducive to the real-time change of the position of the solar panel 40 during the adjustment of the sun gear 33.

[0040] A sowing unit and a fertilizing unit are arranged in the middle of the frame 31. The sowing unit includes a seed dropping mechanism sprocket 25, a seed bucket 26, and a sowing shovel 46. The fertilizing unit includes a fertilizer dropping mechanism sprocket 22, a fertilizer bucket 23, and a fertilizer shovel 47.

[0041] The sowing unit and the fertilizing unit realize linkage operation: when the seeds are sown by the sowing shovel 46, the fertilizer is also fertilized by the fertilizing shovel 47, and the sprocket clutch 18 is controlled by the operation box 16 to connect the driving sprocket 1 on the soil pressing wheel 19 with the driven sprocket 3 on the sprocket clutch 18. When it is necessary to stop sowing and fertilizing, the sprocket clutch 18 is controlled by the operation box 16 to separate the driving sprocket 1 on the soil pressing wheel 19 from the driven sprocket 3 on the sprocket clutch 18. The seed dropping mechanism sprocket 25 is connected to the fertilizer dropping mechanism sprocket 22 through the intermediate transmission chain 24, and the fertilizer dropping mechanism sprocket 22 is connected to the sprocket clutch 18 through the tail transmission chain 21. The power of the soil pressing wheel 19 is used to drive the seed dropping and the fertilizer dropping, so as to realize automatic sowing and fertilizing.

[0042] The structural diagram of the sprocket clutch 18 is shown in FIG. Figure 3 As shown, it is suitable for electricity as a power source, including a power mechanism, a guide mechanism, a separation mechanism and a clutch mechanism. The power mechanism is composed of a first electric cylinder 13, a push rod 13a and a first connecting shaft 12 connected in sequence, and the electric cylinder 13 is used to drive the push rod 13a and the connecting shaft 12; the guide mechanism is composed of a first sliding bearing group and a second sliding bearing group, the first sliding bearing group includes a first sliding bearing seat 10 and a first copper sleeve 11, which are fixed on the base near the push rod 13a side, the connecting shaft 12 passes through the first sliding bearing group and can slide, and the connecting shaft 12 moves horizontally along the axial straight line, and the second sliding bearing group includes a second sliding bearing seat 5 and a second copper sleeve 6, which are fixed on the base near the driven sprocket 3 and the driving sprocket 1 side; the separation mechanism includes a thrust ball bearing 14, a gland nut 9, a connecting bar 8 and a return nut 4, which are used to realize the separation of the power mechanism and the clutch mechanism.

[0043] The thrust ball bearing 14 is composed of a tight ring, a loose ring and a rolling element between the tight ring and the loose ring. The first connecting shaft 12 passes through the thrust ball bearing 14. The tight ring is tightly matched with the first connecting shaft 12 and the shaft shoulder. The loose ring is clearance matched with the first connecting shaft 12, and the outer ring of the loose ring is close to the connecting bar 8. The gland nut 9 is fixed on the left side of the second sliding bearing group, close to the tight ring of the thrust ball bearing 14, and the return nut 4 is fixed on the far end of the first connecting shaft 12 passing through the thrust ball bearing 14, close to the loose ring of the thrust ball bearing 14.

[0044] Since the push rod 13a of the first electric cylinder 13 does not have the function of automatically adjusting the extension distance with the action of power and limit during the movement, freedom must be achieved in the extension direction. The structure of the thrust ball bearing 14 allows a certain axial displacement area, which realizes the freedom of the push rod 13a of the first electric cylinder 13 in the extension direction.

[0045] During the connection process with the driving sprocket 1, it is considered that the driven sprocket 3 must operate together with the driving sprocket 1, and the push rod 13a extending out of the first electric cylinder 13 does not have the ability to rotate, so the thrust ball bearing 14 is used to realize the joint movement of the driven sprocket 3 and the driving sprocket 1 and maintain the fixing effect of the push rod 13a and the first electric cylinder 13.

[0046] The top of the first sliding bearing group and the top of the second sliding bearing group are each provided with an M4 hexagon socket bolt 7 for adjusting tightness, which pass through the first sliding bearing seat 10 and the second sliding bearing seat 5 respectively, and contact the first copper sleeve 11 and the second copper sleeve 6. By adjusting the hexagon socket bolt 7, the straightness of the first connecting shaft 12 can be fine-tuned, thereby ensuring the circumferential accuracy between the driving sprocket 1 and the driven sprocket 3.

[0047] Since the motor is easily burned out if the first electric cylinder 13 is stuck during the pushing process, in order to reduce the time required for the clutch connection, a circumferentially evenly distributed plug-in mode is adopted. In this embodiment, six inserts 2 are evenly arranged in the circumferential direction of the driven sprocket 3, and correspondingly, six insertion holes are evenly arranged in the circumferential direction of the driving sprocket 1. The inserts 2 cooperate with the corresponding insertion holes to realize the connection and disconnection between the driving sprocket 1 and the driven sprocket 3. In order to ensure the strength and firmness of the assembly, an interference pin 15 is used to connect the driven sprocket 3 to the connecting bar 8.

[0048] Driven by 24V voltage, the push rod 13a of the first electric cylinder 13 of the power mechanism extends out, driving the first connecting shaft 12 under the guidance of the first copper sleeve 11. The right side of a shoulder of the first connecting shaft 12 is pressed against the thrust ball bearing 14, and the left end face of the thrust ball bearing 14 is separated from the gland nut 9. At this time, the shoulder and the left side of the thrust ball bearing 14 (i.e., the tightening ring) remain stationary, and the other end of the thrust ball bearing 14 is pressed against the connecting bar 8 to drive the driven sprocket 3 to press against the driving sprocket 1. In the process of the driven sprocket 3 approaching the driving sprocket 1, the insert 2 is slowly inserted into the insertion hole of the driving sprocket 1 to achieve the connection between the driving sprocket 1 and the driven sprocket 3. At this time, the right side of the thrust ball bearing 14 (i.e., the loose ring) and the connecting bar 8 rotate together. When the first electric cylinder 13 drives the push rod 13a to retreat, the M10 return nut 4 presses the right end of the thrust ball bearing 14 to separate the driving sprocket 1 and the driven sprocket 3.

[0049] The 24V power-driven clutch is suitable for electric equipment, has good popularity and is widely used. The uniform arrangement of the six inserts 2 reduces the time required for connection and disengagement, and improves the real-time efficiency and stability of the clutch.

[0050] The soil pressing wheel 19 is located at the rear of the frame 31 and is connected to the frame 31 through a support rod. A handle 17 for the user to hold is also provided at one end of the support rod. An operating box 16 is located on the handle 17. The user can conveniently control the operation of the seed drill through the operating box 16.

[0051] The support rod is provided with a shovel depth adjustment mechanism 20, which is located between the fertilizer application unit and the soil pressing wheel 19. The structure of the shovel depth adjustment mechanism 20 is as follows: Figure 4 As shown, it includes a second connecting rod 20-1, a second electric cylinder 20-2, a third connecting rod 20-3, a guide rod 20-4, a clamping rod 20-5, a telescopic screw 20-6 and a locking component 20-7. The height of the soil pressing wheel 19 relative to the sowing unit and the fertilizing unit is adjusted by adjusting the position of the telescopic screw 20-6. The clamping rod 20-5 is fixed to the frame 31 through the guide rod 20-4. The clamping rod 20-5 and the locking component 20-7 are used to fix the telescopic screw 20-6. The second electric cylinder 20-2 is fixed to the frame 31. One end of the second electric cylinder 20-2 is connected to the second connecting rod 20-1 and the third connecting rod 20-3 in sequence to form a triangular stabilizing mechanism to achieve the fixation of the shoveling depth adjustment mechanism 20 and the frame 31. The third connecting rod 20-3 is fixed on the frame 31; before the device is operated, first rotate the clamping rod 20-5 90° with the guide rod 20-4 as the center point, loosen the locking component 20-7, adjust the position of the telescopic screw 20-6 according to the sowing and fertilizing depth, then tighten the locking component 20-7 and rotate the clamping rod 20-5 to fix the position of the telescopic screw 20-6. At the same time, as the position of the telescopic screw 20-6 is fixed, the second electric cylinder is extended and retracted, so that the triangular stabilizing mechanism composed of the second connecting rod 20-1, the electric cylinder 20-2 and the third connecting rod 20-3 is also adjusted accordingly, and the auxiliary locking component 20-7 and the clamping rod 20-5 fix the position of the telescopic screw 20-6 to ensure the depth of the sowing shovel and the fertilizing shovel.

[0052] The preferred specific embodiments of the present invention are described in detail above. It should be understood that ordinary technicians in the field can make many modifications and changes based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by technicians in the technical field based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A fully electric seeder, characterized in that: The machine comprises a frame and a power supply unit, a sowing unit, a fertilizing unit, a driving wheel and a soil pressing wheel connected to the frame, wherein the power supply unit is arranged on one side of the frame, the driving wheel is arranged below the frame and connected to the power supply unit, the soil pressing wheel is arranged on the other side of the frame, and the sowing unit and the fertilizing unit are arranged between the driving wheel and the soil pressing wheel; The power supply unit includes a motor, a battery pack and a solar energy system. The motor is connected to the driving wheel, the battery pack is connected to the motor, and the solar energy system is connected to the battery pack. The collected solar energy is stored in the battery pack in real time to provide energy for the motor. The sowing unit and the fertilizing unit are respectively provided with a sowing sprocket and a fertilizing sprocket, the sowing sprocket is connected to the fertilizing sprocket, the soil pressing wheel is connected to a driving sprocket and a driven sprocket which are arranged opposite to each other, the driven sprocket is connected to the fertilizing sprocket through a chain, and the driven sprocket is connected to a sprocket clutch mechanism for controlling the connection and separation of the driving sprocket and the driven sprocket; The sprocket clutch mechanism includes a power mechanism, a guide mechanism and a separation mechanism, the power mechanism includes a first electric cylinder, a push rod and a first connecting shaft connected in sequence, the first electric cylinder is used to drive the push rod and the first connecting shaft, the guide mechanism is used to limit the first connecting shaft and the separation mechanism to move linearly along the axial direction, the separation mechanism is used to realize the separation of the power mechanism and the clutch mechanism, and the clutch mechanism includes a driving sprocket and a driven sprocket arranged relatively; The guide mechanism includes a first sliding bearing group and a second sliding bearing group, the first sliding bearing group is close to the push rod side, the first connecting shaft can slide through the first sliding bearing group, the first sliding bearing group includes a first sliding bearing seat and a first copper sleeve, which are used to limit the first connecting shaft to move linearly in the axial direction; the second sliding bearing group is close to the driven sprocket side, the separation mechanism passes through the second sliding bearing group, the second sliding bearing group includes a second sliding bearing seat and a second copper sleeve, which are used to limit the separation mechanism to move linearly in the axial direction; The first sliding bearing group and the second sliding bearing group further include an adjustable fastener, and the adjustable fastener is used to adjust the position of the first connecting shaft and the separation mechanism to achieve circumferential matching of the driving sprocket and the driven sprocket; The separation mechanism includes a thrust ball bearing, which includes a tightening ring, a loose ring and a rolling body located between the tightening ring and the loose ring. The first connecting shaft passes through the thrust ball bearing, the inner ring of the tightening ring of the thrust ball bearing is fastened to the first connecting shaft, and the loose ring of the thrust ball bearing is fixedly connected to the clutch mechanism.

2. The all-electric seeder according to claim 1, characterized in that: The solar energy system comprises a solar panel, a sun gear, a planetary gear, a gear ring, a planetary gear driving a rotating disk, a second connecting shaft, a connecting rod, a first connecting rod and a supporting rod; Among them, the sun gear coincides with the central axis of the ring gear, the planetary gear is arranged on the outer periphery of the sun gear, and makes circumferential motion around the sun gear in the inner ring of the ring gear, the planetary gear drives the turntable to be arranged on the outer ring of the planetary gear, the second connecting shaft is fixed on the planetary gear drives the turntable, the two ends of the first connecting rod are respectively connected to the solar panel and the second connecting shaft, the connecting rod and one end of the support rod are connected to the first connecting rod, the other end of the connecting rod is connected to the solar panel, and the other end of the support rod is fixed on the frame, and the angle of the solar panel is adjusted by rotating the turntable driven by the planetary gear.

3. The all-electric seeder according to claim 1, characterized in that: The separation mechanism also includes a gland nut, a connecting bar and a return nut. The gland nut is fixed on the second sliding bearing group and is in detachable contact with the tightening ring of the thrust ball bearing. The loose ring outer ring of the thrust ball bearing is fastened in the connecting bar. The connecting bar can be slidably inserted into the second sliding bearing group. The return nut is fixed at the distal end of the first connecting shaft and is in detachable contact with the loose ring of the thrust ball bearing.

4. The all-electric seeder according to claim 1, characterized in that: The driving sprocket is provided with insertion holes evenly arranged along the circumferential direction facing the driven sprocket, and the driven sprocket is correspondingly provided with insertion pieces evenly arranged along the circumferential direction facing the driving sprocket.

5. The all-electric seeder according to claim 3, characterized in that: Also included is an interference pin connecting the driven sprocket to the connecting bar.

6. The all-electric seeder according to claim 1, characterized in that: The frame is connected to the soil press wheel through a support rod, and the support rod is provided with a shoveling depth adjustment mechanism, which includes a clamping rod, a guide rod, a telescopic screw, a locking component, a second connecting rod, a third connecting rod and a second electric cylinder. The height of the soil press wheel relative to the sowing unit and the fertilizing unit is adjusted by adjusting the position of the telescopic screw. The clamping rod is fixed to the frame through the guide rod, and the locking component is fixed to the frame. The clamping rod and the locking component are used to fix the telescopic screw. The second electric cylinder is fixed to the frame, and one end of the second electric cylinder is connected to the second connecting rod and the third connecting rod in sequence, and the third connecting rod is fixed to the frame.

Citation Information

Patent Citations

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