A portable vibratory harvester for camellia fruit lateral branches
By designing a portable vibrating harvester for camellia oleifera fruit lateral branches, and utilizing a brushless DC motor drive and transmission reversing mechanism, the problems of inflexible movement and high missed harvesting rate of camellia oleifera fruit harvesting devices in hilly and mountainous areas were solved. This achieved efficient and low-damage harvesting results, and is suitable for complex terrain and efficient fruit collection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI AGRICULTURAL UNIVERSITY
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-17
Smart Images
Figure CN224504085U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of agricultural and forestry machinery harvesting devices, and in particular to a portable vibratory harvester for the lateral branches of camellia oleifera fruit. Background Technology
[0002] Camellia oleifera is one of my country's unique woody oilseed tree species, mainly growing in the high mountains and hilly areas of the subtropical regions of southern my country, such as Hunan, Jiangxi, Guangxi, and Zhejiang. Camellia oleifera fruit is the fruit of the tree, which can be processed into camellia oil, which has multiple uses. In recent years, the camellia oleifera industry has developed rapidly, but the harvesting of camellia oleifera fruit is still mainly done manually, which is not only labor-intensive but also inefficient, seriously hindering the development of the industry. The optimal harvesting period for camellia oleifera fruit is only about 10 days; missing this period results in economic losses. Furthermore, because camellia oleifera flowers and fruits simultaneously, the flower buds are easily damaged during harvesting, reducing the following year's yield and increasing the difficulty of mechanical harvesting. Currently, domestically developed camellia oleifera fruit harvesting devices suffer from high missed harvest rates and inflexible movement in hilly and mountainous areas, making it difficult to widely apply these devices. Therefore, given the irregular planting patterns of camellia trees in camellia orchards and the complex growth characteristics of camellia trees, it is necessary to develop a camellia fruit harvesting device that is suitable for long-term operation, easy to carry by hand, and can be used for harvesting in hilly areas with complex terrain. Utility Model Content
[0003] The technical problem solved by this utility model is to provide a portable vibratory harvesting machine for the lateral branches of camellia oleifera fruit, so as to solve the problems existing in the background art mentioned above.
[0004] The technical problem solved by this utility model is achieved by the following technical solution: A portable vibratory harvester for camellia oleifera fruit branches includes a housing, a power mechanism providing power to the harvester, a harvesting drive mechanism for driving the harvesting mechanism, a transmission reversing mechanism for converting horizontal rotation around an axis into vertical linear rotation, a gear reduction mechanism for reducing the rotational speed of the harvesting mechanism, a fastening and anti-sway mechanism for fixing the harvesting drive mechanism, and a harvesting mechanism for clamping branches. The housing has a handle at its upper part, a harvesting mechanism connected to the harvesting drive mechanism at its front end, and the harvesting drive mechanism, transmission reversing mechanism, gear reduction mechanism, and fastening and anti-sway mechanism are housed inside the housing. The power mechanism is located at the rear end of the housing. The specific structures of each part are as follows: The housing consists of an upper housing and a lower housing, and the upper housing and the lower housing are respectively provided with fixing holes for fixing bearings with seats and connecting holes for connecting the mounting base of a brushless DC motor. The power mechanism includes a brushless DC motor and a brushless DC motor mounting base. The brushless DC motor is mounted on the brushless DC motor mounting base, and the power generated by the brushless DC motor is transmitted to the drive shaft through a coupling. The harvesting drive mechanism includes a linear bearing, a linear bearing guide rod, a side bearing, a washer, a connecting rod, and a cylindrical gear. The cylindrical gear is housed within the upper housing, and a mounting hole for mounting one end of the connecting rod is provided at a position not coinciding with the center of the cylindrical gear. The cylindrical gear acts as the motion handle of the harvesting drive mechanism, driving its movement. A side bearing is mounted at the end of the mounting hole near the upper housing. The other end of the connecting rod is connected to the linear bearing guide rod, on which a linear bearing is mounted. Simultaneously, circular holes for mounting the side bearings are provided at both ends of the connecting rod. Bolts pass through the side bearings to sequentially connect the cylindrical gear, washer, and connecting rod. Similarly, bolts pass through the side bearings to sequentially connect the linear bearing guide rod, washer, and connecting rod. The use of side bearings reduces friction at the hinged joints. The transmission reversing mechanism includes a drive shaft, a coupling, a deep groove ball bearing, a connecting shaft, a pair of meshing bevel gears, and shaft end retaining rings. One end of the drive shaft is connected to a brushless DC motor via the coupling. The other end of the drive shaft is fitted with a bevel gear, the top of which is bolted to a shaft end retaining ring to restrict axial movement. The bottom of this bevel gear is mounted on one end of the drive shaft shoulder, which positions the bevel gear. The other end of the drive shaft shoulder is tightly fitted against the inner ring of the upper end of the deep groove ball bearing. One end of the connecting shaft is mounted on a bearing in the upper housing, and the other end is mounted on a bearing in the lower housing. The connecting shaft is fitted with another bevel gear and a pinion gear that mesh with the bevel gear mounted on the drive shaft, with the bottom of the bevel gear in contact with the pinion gear. The meshing bevel gears convert the circular motion of the drive shaft into a circular rotation perpendicular to the connecting shaft direction. The gear reduction mechanism includes a connecting shaft shared with the transmission reversing mechanism, a cylindrical pinion, a driven shaft, and a cylindrical large gear shared with the picking drive mechanism. The cylindrical pinion is mounted on the connecting shaft, with its upper surface tightly against the shoulder of the connecting shaft. The cylindrical large gear is mounted on the driven shaft, with its upper surface tightly against the shoulder of the driven shaft. The upper end of the driven shaft is fixed to a bearing with a seat on the upper housing, and the lower end of the driven shaft is recessed below the lower surface of the cylindrical large gear to prevent the driven shaft from interfering with the movement when the picking drive mechanism is in motion. The fastening and anti-sway mechanism is mounted on the housing; The harvesting mechanism is mounted on a linear bearing guide rod.
[0005] In this utility model, the front end of the upper housing has a mounting hole for installing a linear bearing, the upper end of the upper housing has a fixing hole for fixing a bearing with a mounting seat and a connecting hole for connecting to the lower housing, and the rear end of the upper housing has a connecting hole for connecting to a brushless DC motor mounting base; the front part of the lower housing is provided with a thin plate, the rear part of the lower housing is provided with a protrusion, the protrusion has a fixing hole for fixing a bearing with a mounting seat, and the rear end of the lower housing has a connecting hole for connecting to a brushless DC motor mounting base.
[0006] In this utility model, the brushless DC motor mounting base is provided with a groove, and the lower outer ring of the deep groove ball bearing is in close contact with the groove of the brushless DC motor mounting base to limit the axial movement of the deep groove ball bearing.
[0007] In this utility model, the fastening and anti-sway mechanism includes two needle roller bearings and two bushings. The two needle roller bearings are symmetrically installed at the upper and lower ends of the upper housing to fix the cylindrical gear and prevent it from deviating from its original position during vibration. A bushing is provided between the needle roller bearings and the upper housing, which is separated by the bushing and fastened by anti-loosening bolts. The working surface of the needle roller bearing is pressed tightly against the side of the cylindrical gear. As the cylindrical gear rotates, the working surface of the needle roller bearing also rotates, thereby reducing the friction between the two.
[0008] In this invention, the harvesting mechanism includes a clamp, which is mounted on a linear bearing guide rod, and a soft pad is provided on the clamp to prevent damage to the branches.
[0009] In this invention, when harvesting camellia oleifera fruits, first connect the power line, and after confirming that everything is correct, hold the handle of the harvesting device, carry the power supply on your back, select the camellia oleifera fruit tree to be harvested, insert the clamp into the camellia oleifera fruit tree to clamp the side branches, and then press the button to start the brushless DC motor. The brushless DC motor transmits power to the transmission reversing mechanism through the coupling, which in turn drives the harvesting drive mechanism to start reciprocating motion, thereby promoting the swaying of the branches and causing the camellia oleifera fruits to fall due to inertial force. The vibration frequency of the harvester can be adjusted according to different varieties and ripeness to achieve efficient fruit harvesting.
[0010] Beneficial effects: This utility model has a strong endurance and can operate continuously for a long time; the clamping head vibrates the side branches, causing little damage to the roots of the camellia fruit tree; it is also compact, lightweight, and easy to carry, making it suitable for hilly areas with high planting density where large machinery cannot enter; at the same time, it can achieve efficient harvesting of camellia fruit by adjusting the vibration frequency. Attached Figure Description
[0011] Figure 1 This is a front view of a preferred embodiment of the present invention.
[0012] Figure 2 This is a top view of a preferred embodiment of the present invention.
[0013] Figure 3 This is a schematic diagram of the internal structure of a preferred embodiment of the present invention.
[0014] Figure 4 This is a schematic diagram of the internal installation of the housing in a preferred embodiment of the present invention.
[0015] Figure 5 This is a front view of the picking drive mechanism in a preferred embodiment of the present invention.
[0016] Figure 6 This is a top view of the picking drive mechanism in a preferred embodiment of the present invention.
[0017] Figure 7 This is a front view of the motion handle in a preferred embodiment of the present invention.
[0018] Figure 8 This is a perspective view of the motion handle in a preferred embodiment of the present invention.
[0019] Figure 9 This is a front view of the driven shaft in a preferred embodiment of the present invention.
[0020] Figure 10 This is a top view of the driven axis in a preferred embodiment of the present invention.
[0021] Figure 11 This is a three-dimensional side view of the interior of the housing in a preferred embodiment of the present invention.
[0022] In the diagram: 1. Brushless DC motor, 2. Brushless DC motor mounting bracket, 3. Upper housing, 4. Handle, 5. Linear bearing, 6. Linear bearing guide rod, 7. Chuck, 8. Lower housing, 9. Drive shaft, 10. Coupling, 11. Deep groove ball bearing, 12. Connecting shaft, 13. Bevel gear, 14. Cylindrical pinion, 15. Driven shaft, 16. Side bearing, 17. Connecting rod, 18. Needle roller bearing, 19. Bushing, 20. Cylindrical large gear, 21. Shaft end retaining ring, 22. Mounted bearing. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.
[0024] See Figures 1-11A portable vibratory harvester for camellia oleifera fruit branches is shown, comprising a housing, a power mechanism, a harvesting drive mechanism, a transmission reversing mechanism, a gear reduction mechanism, a fastening and anti-sway mechanism, and a harvesting mechanism for clamping branches. The power mechanism provides power to the harvester; the harvesting drive mechanism drives the harvesting mechanism; the transmission reversing mechanism converts horizontal rotation around an axis into vertical linear rotation; the gear reduction mechanism reduces the rotational speed of the harvesting mechanism; the fastening and anti-sway mechanism secures the large cylindrical gear 20 in the harvesting drive mechanism; and the harvesting mechanism clamps the branches. A handle 4 is provided on the upper part of the housing, the harvesting mechanism is located at the front end of the housing, the harvesting drive mechanism, the transmission reversing mechanism, the gear reduction mechanism, and the fastening and anti-sway mechanism are housed inside the housing, and the power mechanism is located at the rear end of the housing. The specific structures of each part are as follows: The housing consists of an upper housing 3 and a lower housing 8. The upper housing 3 has a mounting hole at its front end for mounting a linear bearing 5. The upper end of the upper housing 3 has two fixing holes for fixing a bearing with a mounting seat 22 and several connecting holes for connecting to the lower housing 8. The rear end of the upper housing 3 has two connecting holes for connecting to a brushless DC motor mounting seat 2. The lower housing 8 has a thin plate at its front and a protrusion at its rear. The protrusion has two fixing holes for fixing the bearing with a mounting seat 22. The rear end of the lower housing 8 has two connecting holes for connecting to a brushless DC motor mounting seat 2. The power mechanism includes a brushless DC motor 1 and a brushless DC motor mounting base 2. The brushless DC motor 1 is mounted on the brushless DC motor mounting base 2, and the power generated by the brushless DC motor 1 is transmitted to the drive shaft 9 through a coupling 10. The harvesting drive mechanism includes a linear bearing 5, a linear bearing guide rod 6, a side bearing 16, a washer, a connecting rod 17, and a cylindrical gear 20. The cylindrical gear 20 is housed within the upper housing 3, and a mounting hole for mounting one end of the connecting rod 17 is provided at a position not coinciding with the center of the cylindrical gear 20. The cylindrical gear 20 serves as the motion handle of the harvesting drive mechanism, driving its movement. A side bearing 16 is mounted at the end of the mounting hole near the upper housing 3. The other end of the connecting rod 17 is connected to the linear bearing guide rod 6, on which the linear bearing 5 is mounted. Simultaneously, circular holes for mounting the side bearing 16 are provided at both ends of the connecting rod 17. Bolts pass through the side bearing 16 to sequentially connect the cylindrical gear 20, the washer, and the connecting rod 17. Similarly, bolts pass through the side bearing 16 to sequentially connect the linear bearing guide rod 6, the washer, and the connecting rod 17. The use of the side bearing 16 reduces friction at the hinged joints. The transmission reversing mechanism includes a drive shaft 9, a coupling 10, a deep groove ball bearing 11, a connecting shaft 12, a pair of meshing bevel gears 13, and a shaft end retaining ring 21. One end of the drive shaft 9 is connected to a brushless DC motor 1 via the coupling 10. The other end of the drive shaft 9 is keyed to a bevel gear 13, and the top of this bevel gear 13 is bolted to a shaft end retaining ring 21 to restrict its axial movement. The bottom of this bevel gear 13 is positioned by a shoulder of the drive shaft 9. The other end of the shoulder of the drive shaft 9 is in close contact with the upper inner ring of the deep groove ball bearing 11, and the lower outer ring of the deep groove ball bearing 11... The groove of the brushless DC motor mounting base 2 is used to restrict the axial movement of the deep groove ball bearing 11; one end of the connecting shaft 12 is mounted on the bearing 22 of the upper housing 3, and the other end of the connecting shaft 12 is mounted on the bearing 22 of the lower housing 8. Another bevel gear 13 and a cylindrical pinion 14 are fitted on the connecting shaft 12, which mesh with the bevel gear 13 mounted on the drive shaft 9, and the bottom of the bevel gear 13 is in contact with the cylindrical pinion 14; the circular motion of the drive shaft 9 is reversed into a circular rotation perpendicular to the direction of the connecting shaft 12 through a pair of meshing bevel gears 13; The gear reduction mechanism includes a connecting shaft 12 shared with the transmission reversing mechanism, a cylindrical pinion 14, a driven shaft 15, and a cylindrical large gear 20 shared with the picking drive mechanism. The cylindrical pinion 14 is mounted on the connecting shaft 12 by a key, and the upper surface of the cylindrical pinion 14 is in close contact with the shoulder of the connecting shaft 12. The cylindrical large gear 20 is connected to the driven shaft 15 by a key, and the upper surface of the cylindrical large gear 20 is in close contact with the shoulder of the driven shaft 15. The upper end of the driven shaft 15 is fixed on the bearing 22 with a seat on the upper housing 3, and the lower end of the driven shaft 15 is recessed below the lower surface of the cylindrical large gear 20 to prevent the driven shaft 15 from interfering with the movement when the picking drive mechanism is in motion. The fastening and anti-sway mechanism includes two needle roller bearings 18 and two bushings 19. The two needle roller bearings 18 are symmetrically installed at the upper and lower ends of the upper housing 3 to fix the cylindrical gear 20 and prevent the cylindrical gear 20 from deviating from its original position during vibration. The bushings 19 are used to separate the needle roller bearings 18 from the upper housing 3 and are fastened by anti-loosening bolts. The working surface of the needle roller bearing 18 is pressed tightly against the side of the cylindrical gear 20. As the cylindrical gear 20 rotates, the working surface of the needle roller bearing 18 also rotates, thereby reducing the friction between the two. The harvesting mechanism includes a clamp 7, which is bolted to the linear bearing guide rod 6. A soft pad is provided on the clamp 7 to prevent damage to the branches.
[0025] In this embodiment, since only one end of the driven shaft 15 is fixed to the bearing 22 with a seat, and the other end cannot be fixed in the same way, a needle roller bearing 18 is installed at the upper end and the lower end of the upper housing 3 to fix the cylindrical gear 20.
[0026] In this embodiment, when harvesting camellia fruit, first connect the power line, and after confirming that everything is correct, hold the harvesting device handle 4, carry the power supply on your back, select the camellia fruit tree to be harvested, insert the clamp 7 into the camellia fruit tree to clamp the side branches, and then press the button to start the brushless DC motor 1. The brushless DC motor 1 transmits power to the transmission reversing mechanism through the coupling 10, thereby driving the harvesting drive mechanism to start reciprocating motion, thereby promoting the swaying of the branches, causing the camellia fruit to fall due to inertial force. The vibration frequency of the harvester is adjusted according to different varieties and ripeness to achieve efficient fruit harvesting.
[0027] In this embodiment, a brushless DC motor 1 is used as the driving force, and a lithium battery is used as the power source. It has a strong endurance and can operate continuously for a long time. It is simple to operate and easy to learn. The clamp 7 clamps the side branches and vibrates, causing little damage to the roots of the camellia oleifera tree. The harvesting drive mechanism and the transmission reversing mechanism are compact and lightweight, making the whole device easy to carry and adaptable to various terrains. The harvesting efficiency is high and the vibration frequency can be adjusted to achieve a high fruit drop rate and a low flower drop rate, thereby ensuring the yield of camellia oleifera fruit in the following year.
[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A portable vibratory harvester for camellia oleifera fruit branches, comprising a housing, a power mechanism for providing power to the harvester, a harvesting drive mechanism for driving the harvesting mechanism, a transmission reversing mechanism for converting horizontal rotation around an axis into vertical linear rotation, a gear reduction mechanism for reducing the rotational speed of the harvesting mechanism, a fastening and anti-sway mechanism for fixing the harvesting drive mechanism, and a harvesting mechanism for clamping branches, characterized in that, A handle is provided on the upper part of the housing, a harvesting mechanism connected to the harvesting drive mechanism is provided at the front end of the housing, a harvesting drive mechanism, a transmission reversing mechanism, a gear reduction mechanism and a fastening and anti-sway mechanism are provided inside the housing, and a power mechanism is provided at the rear end of the housing. The specific structure of each part is as follows: The housing consists of an upper housing and a lower housing, and the upper housing and the lower housing are respectively provided with fixing holes for fixing bearings with seats and connecting holes for connecting the mounting base of a brushless DC motor. The power mechanism includes a brushless DC motor and a brushless DC motor mounting base, wherein the brushless DC motor is mounted on the brushless DC motor mounting base; The harvesting drive mechanism includes a linear bearing, a linear bearing guide rod, a side bearing, a connecting rod, and a cylindrical gear. The cylindrical gear is housed within the upper housing and has a mounting hole at a position not coinciding with the center of the cylindrical gear for mounting one end of the connecting rod. The cylindrical gear serves as the motion handle of the harvesting drive mechanism. A side bearing is mounted at the end of the mounting hole near the upper housing. The other end of the connecting rod is connected to the linear bearing guide rod, on which a linear bearing is mounted. Simultaneously, circular holes for mounting the side bearings are provided at both ends of the connecting rod. The transmission reversing mechanism includes a drive shaft, a coupling, a deep groove ball bearing, a connecting shaft, a pair of meshing bevel gears, and a shaft end retaining ring. One end of the drive shaft is connected to a brushless DC motor via the coupling, and the other end of the drive shaft is equipped with a bevel gear. The top of this bevel gear is fixed with a shaft end retaining ring, and the bottom of this bevel gear is mounted on one end of the drive shaft shoulder. The other end of the drive shaft shoulder is in close contact with the upper inner ring of the deep groove ball bearing. One end of the connecting shaft is mounted on a bearing with a seat on the upper housing, and the other end of the connecting shaft is mounted on a bearing with a seat on the lower housing. The connecting shaft is fitted with another bevel gear and a cylindrical pinion that mesh with the bevel gear mounted on the drive shaft, and the bottom of this bevel gear is in close contact with the cylindrical pinion. The gear reduction mechanism includes a connecting shaft shared with the transmission reversing mechanism, a cylindrical pinion, a driven shaft, and a cylindrical large gear shared with the picking drive mechanism. The cylindrical pinion is mounted on the connecting shaft, and its upper surface is in close contact with the shoulder of the connecting shaft. The cylindrical large gear is mounted on the driven shaft, and its upper surface is in close contact with the shoulder of the driven shaft. The upper end of the driven shaft is fixed to a bearing with a seat on the upper housing, and the lower end of the driven shaft is recessed on the lower surface of the cylindrical large gear. The fastening and anti-sway mechanism is mounted on the housing; The harvesting mechanism is mounted on a linear bearing guide rod.
2. The portable lateral branch vibration picking machine according to claim 1, characterized in that, The upper housing has a mounting hole at the front end for mounting a linear bearing, a fixing hole at the upper end for fixing a bearing with a mounting seat and a connecting hole for connecting to the lower housing, and a connecting hole at the rear end for connecting to a mounting bracket for a brushless DC motor.
3. The portable lateral branch vibration picking machine according to claim 1, characterized in that, A thin plate is provided at the front of the lower housing, and a protrusion is provided at the rear of the lower housing. The protrusion has a fixing hole for fixing a bearing with a seat, and a connecting hole is provided at the tail end of the lower housing for connecting a brushless DC motor mounting bracket.
4. The portable lateral branch vibration picking machine according to claim 1, characterized in that, The brushless DC motor mounting base is provided with a groove, and the lower outer ring of the deep groove ball bearing is in close contact with the groove of the brushless DC motor mounting base.
5. The portable lateral branch vibration picking machine according to claim 1, characterized in that, The fastening and anti-sway mechanism includes two needle roller bearings and two bushings. The two needle roller bearings are symmetrically installed at the upper and lower ends of the upper housing, and the working surfaces of the needle roller bearings are pressed tightly against the side of the cylindrical gear. At the same time, bushings are provided between the needle roller bearings and the upper housing.
6. The portable lateral branch vibration picking machine of claim 1, wherein, The harvesting mechanism includes a clamp, which is mounted on a linear bearing guide rod.
7. The portable lateral branch vibration picking machine according to claim 6, characterized in that, The clamp is equipped with a soft pad.