A multifunctional lettuce harvesting device
Patent Information
- Application Number
- CN202522289549.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-29
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-10-29
AI Technical Summary
[0004]本申请的目的在于克服上述技术不足，提出一种多功能莴笋收割装置，解决现有技术中收割装置功能集成度不足，收割效率低的技术问题
[0015]与现有技术相比，本申请提供的一种多功能莴笋收割装置，通过在收割装置的机架上集成采集组件、收集组件以及松土组件，将收割、打包以及松土功能进行集成，使得收割装置能自动、连续地完成“采收-收集-松土”全套工序，避免使用旋耕机进行二次操作，有助于提升收割装置整体的工作效率；并且松土组件利用收割装置的行进动力源进行工作，有效避免采用多个动力源的设计，简化收割装置的结构，也降低了生产成本。
Smart Images
Figure CN224775541U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of agricultural machinery technology, specifically to a multifunctional lettuce harvesting device. Background Technology
[0002] Lettuce is a common vegetable, widely cultivated in China with a long history of cultivation. The industrial layout of the lettuce sector indicates that China's climate and soil conditions are suitable for lettuce growth, and China is also one of the world's largest lettuce consumer markets. In the large-scale cultivation and harvesting of lettuce, automated equipment has gradually replaced manual labor, undertaking basic operations such as cutting, conveying, and collecting.
[0003] Currently, the harvesting devices are equipped with rotating, cutting, and gripping mechanisms, enabling automatic navigation and positioning, path planning, and targeted harvesting of lettuce. However, their harvesting efficiency is low, and their functional integration is poor. Therefore, current harvesting devices suffer from technical problems of insufficient functional integration and low harvesting efficiency. Utility Model Content
[0004] The purpose of this application is to overcome the above-mentioned technical deficiencies and propose a multifunctional lettuce harvesting device to solve the technical problems of insufficient functional integration and low harvesting efficiency in existing harvesting devices.
[0005] To achieve the above-mentioned technical objectives, this application adopts the following technical solution: In a first aspect, this application provides a multifunctional lettuce harvesting device. The harvesting device includes a frame, a harvesting component, a collection component, and a soil loosening component. The frame is equipped with a drive motor for driving the harvesting device forward. The harvesting component is located at the front end of the frame in the direction of travel and is used to harvest lettuce. The collection component is connected to the frame and adjacent to the harvesting component, and is used to collect the lettuce cut by the harvesting component. The soil loosening component includes a blade module and a power transmission module connected to the blade module. The output shaft of the drive motor is equipped with a motor output gear, and the power transmission module is drivenly connected to the motor output gear.
[0006] In some embodiments, the blade module includes a blade holder and a blade fixed on the blade holder; the power transmission module includes a plurality of cooperating drive shafts and gears, and the motor output gear is connected to the blade holder via the drive shafts and gears.
[0007] In some embodiments, the power transmission module includes a first drive shaft, a second drive shaft, and a third drive shaft. The first drive shaft is connected to a first gear and a second gear at both ends, respectively. The second drive shaft is connected to a third gear and a fourth gear at both ends, respectively. The third drive shaft is connected to a blade holder, and one end of the third drive shaft is connected to a fifth gear. The motor output gear meshes with the first gear, the second gear meshes with the third gear, and the fourth gear meshes with the fifth gear.
[0008] In some embodiments, the soil loosening assembly further includes an adjustment module, which includes a connecting fastener, a connecting plate, and a slider; the connecting fastener is connected to the third drive shaft and the connecting plate respectively, and the slider is connected to the connecting plate and the frame respectively, and the slider can drive the connecting plate to move along the width direction of the harvesting device.
[0009] In some embodiments, the adjustment module further includes a lever, one end of which is connected to a connecting plate, and the other end of which extends to the outside of the frame.
[0010] In some embodiments, the adjustment module further includes a return rod, one end of which is provided with a locking portion that can contact the connecting plate to restrict the movement of the connecting plate along the width direction of the harvesting device.
[0011] In some embodiments, the connecting plate is provided with a groove, and the snap-fit portion can extend into the groove to contact the connecting plate. The groove is used to restrict the movement of the connecting plate along the width direction of the harvesting device.
[0012] In some embodiments, the adjustment module further includes a tension spring, one end of which is connected to the frame and the other end of which is connected to the return rod. Under the action of the tension spring, the snap-fit part is pressed into contact with the connecting plate.
[0013] In some embodiments, the third drive shaft is provided with multiple blade holders spaced apart along the axial direction, and each blade holder fixes multiple blades respectively.
[0014] In some embodiments, the soil loosening assembly includes two sets of blade modules, which are arranged on both sides of the frame along the width direction of the harvesting device.
[0015] Compared with the prior art, the multifunctional lettuce harvesting device provided in this application integrates harvesting, baling, and soil loosening functions by integrating a harvesting component, a collection component, and a soil loosening component on the frame of the harvesting device. This allows the harvesting device to automatically and continuously complete the entire process of "harvesting-collecting-soil loosening," avoiding the need for secondary operations using a rotary tiller and helping to improve the overall working efficiency of the harvesting device. Furthermore, the soil loosening component operates using the driving power source of the harvesting device, effectively avoiding the use of multiple power sources, simplifying the structure of the harvesting device, and reducing production costs. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the multifunctional lettuce harvesting device provided in the embodiments of this application; Figure 2 This is a front view of the multifunctional lettuce harvesting device provided in the embodiments of this application; Figure 3 This is a front view of the soil loosening component in the harvesting device provided in the embodiments of this application; Figure 4 This is a top view of the soil loosening component in the harvesting device provided in the embodiments of this application; Figure 5 This is a side view of the soil loosening component in the harvesting device provided in the embodiments of this application; Figure 6 This is a perspective view of the soil loosening component in the harvesting device provided in the embodiments of this application.
[0017] Explanation of reference numerals in the attached figures: 100. Harvesting device; 110. Frame; 111. Drive motor; 112. Coupling; 113. Motor output gear; 120. Data Acquisition Components; 130. Collection Components; 131. First Collection Module; 140. Soil loosening components; 150. Power transmission module; 151. First gear; 152. First drive shaft; 153. Second gear; 154. Third gear; 155. Second drive shaft; 156. Fourth gear; 157. Fifth gear; 158. Third drive shaft; 160. Blade module; 161. Blade; 162. Blade holder; 170. Adjustment module; 171. Connecting plate; 1711. Connecting fastener; 172. Slider; 173. Lever; 1731. Connector; 174. Return lever; 1741. Snap-fit part; 175. Tension spring. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0019] The harvesting process for lettuce mainly consists of steps such as leaf removal, cutting, and packing. In some embodiments, the harvesting device is equipped with a harvesting structure module and a packing structure module to meet the needs of both harvesting and packing functions.
[0020] After the lettuce harvest is completed, rotary tillers and other equipment are needed to loosen the soil in order to meet the needs of subsequent planting.
[0021] It should be emphasized that using equipment such as rotary tillers for secondary field entry to loosen the soil increases labor time and costs, reduces the efficiency of the entire harvesting process, and the repeated compaction of the soil caused by the machinery's multiple entry into the field has a negative impact on soil health.
[0022] To address the technical problems of insufficient functional integration and low harvesting efficiency in harvesting devices, this application provides a multifunctional lettuce harvesting device. By integrating a harvesting component, a collection component, and a soil loosening component on the frame of the harvesting device, the functions of harvesting, baling, and soil loosening are integrated. This allows the harvesting device to automatically and continuously complete the entire "harvesting-collection-soil loosening" process, avoiding the need for secondary operations using a rotary tiller and helping to improve the overall working efficiency of the harvesting device. Furthermore, the soil loosening component operates using the driving power source of the harvesting device, effectively avoiding the use of multiple power sources, simplifying the structure of the harvesting device, and reducing production costs.
[0023] It should be noted that the harvesting device of this application is used for, but not limited to, lettuce harvesting. For ease of explanation, this application will only use the application of the harvesting device to lettuce harvesting as an example. The principle of the harvesting device applied to other harvesting processes is essentially the same as that applied to lettuce harvesting, and will not be described in detail here.
[0024] This application provides a multifunctional lettuce harvesting device 100, such as... Figures 1 to 3 As shown.
[0025] The harvesting device 100 includes a frame 110, a harvesting component 120, a collection component 130, and a soil loosening component 140. The frame 110 is equipped with a drive motor 111 for driving the harvesting device 100 to move. The harvesting component 120 is located at the front end of the frame 110 in the direction of travel and is used to harvest lettuce. The collection component 130 is connected to the frame 110 and adjacent to the harvesting component 120. The collection component 130 is used to collect the lettuce cut by the harvesting component 120. The soil loosening component 140 includes a blade module 160 and a power transmission module 150 connected to the blade module 160. The output shaft of the drive motor 111 is equipped with a motor output gear 113, and the power transmission module 150 is connected to the motor output gear 113 for transmission.
[0026] For ease of description and understanding, a coordinate system is established to explain the orientation. The first direction X is the direction in which the harvesting device 100 moves forward or backward, which is the length direction of the harvesting device 100; the second direction Y is perpendicular to the first direction X and is the width direction of the harvesting device 100; the third direction Z is perpendicular to the first direction X and the second direction Y respectively and is the height direction of the harvesting device 100.
[0027] The frame 110 is the overall frame of the harvesting device 100. The drive motor 111 is installed at the bottom of the frame 110, and wheels for harvesting are installed on both sides of the frame 110. The drive motor 111 is connected to the wheels through a drive shaft.
[0028] In some embodiments, the drive motor 111 is connected to the motor output gear 113 via a coupling 112.
[0029] The harvesting component 120 is a device for harvesting lettuce from the ground. Located at the front end of the harvesting device 100 and fixedly connected to the frame 110, the harvesting component 120 performs operations such as leaf removal and harvesting of the lettuce. Any structure or device capable of harvesting meets the requirements of this application.
[0030] The collecting component 130 is a device for collecting cut lettuce. In the first direction X, the collecting component 130 is adjacent to the harvesting component 120 and fixed in the middle region of the frame 110. The collecting component 130 is capable of transporting the lettuce to the collecting box via a conveyor belt. Any structure or device capable of collecting the lettuce meets the requirements of this application.
[0031] The soil loosening assembly 140 is a device for loosening soil after lettuce harvesting. The soil loosening assembly 140 includes a blade module 160 and a power transmission module 150. The blade module 160 is arranged along a second direction Y. Exemplarily, the blade module 160 can be located on the outside of the frame 110; exemplaryly, the blade module 160 can also be located on the inside of the frame 110. The blade module 160 includes blades 161 and blade holders 162. The power transmission module 150 drives the blade holders 162 to rotate, thereby causing the blades 161 to contact the soil for tilling.
[0032] It should be noted that the blade 161 can be replaced according to actual needs. For example, if deep tillage is required, a larger blade 161 can be selected so that the blade 161 can penetrate deeper into the soil to meet the needs of deep soil renewal. If surface tillage is required, a smaller blade 161 can be selected so that the blade 161 penetrates less into the soil to meet the needs of surface soil renewal.
[0033] The power for rotating the blade holder 162 can come from the drive motor 111 that drives the harvesting device 100 forward. The output shaft of the drive motor 111 is equipped with a motor output gear 113. One end of the power transmission module 150 is connected to the blade holder 162, and the other end of the power transmission module 150 is engaged with the motor output gear 113 to transmit the power of the drive motor 111 to the blade holder 162.
[0034] By integrating the harvesting component 120, the collection component 130, and the loosening component 140 on the frame 110 of the harvesting device 100, the functions of harvesting, baling, and loosening are integrated, enabling the harvesting device 100 to automatically and continuously complete the entire process of "harvesting-collecting-loosening", avoiding the need for secondary operations using a rotary tiller, and helping to improve the overall working efficiency of the harvesting device 100; in addition, the loosening component 140 works using the driving power source of the harvesting device 100, effectively avoiding the design of multiple power sources, simplifying the structure of the harvesting device 100, and reducing production costs.
[0035] In some embodiments, the blade module 160 includes a blade holder 162 and a blade 161 fixed on the blade holder 162; the power transmission module 150 includes a plurality of cooperating drive shafts and gears, and the motor output gear 113 is connected to the blade holder 162 via the drive shafts and gears.
[0036] The power transmission module 150 primarily uses mechanical transmission. For example, the motor output gear 113 transmits power by cooperating with gears and a drive shaft; alternatively, it transmits power by cooperating with gears, a drive shaft, and a drive chain; and still others by cooperating with gears, a drive shaft, and a drive belt. Mechanical transmission helps improve the reliability of power transmission.
[0037] In some embodiments, such as Figures 3 to 6 As shown, the power transmission module 150 includes a first drive shaft 152, a second drive shaft 155, and a third drive shaft 158. The first drive shaft 152 is connected to a first gear 151 and a second gear 153 at both ends, respectively. The second drive shaft 155 is connected to a third gear 154 and a fourth gear 156 at both ends, respectively. The third drive shaft 158 is connected to the blade holder 162, and one end of the third drive shaft 158 is connected to a fifth gear 157. The motor output gear 113 meshes with the first gear 151, the second gear 153 meshes with the third gear 154, and the fourth gear 156 meshes with the fifth gear 157.
[0038] The first drive shaft 152 is arranged along the third direction Z, the second drive shaft 155 is arranged along the first direction X, and the third drive shaft 158 is arranged along the second direction Y.
[0039] The motor output gear 113 meshes with the first gear 151, which in turn rotates the first transmission shaft 152, thereby driving the second gear 153 to rotate. The second gear 153 meshes with the third gear 154, which in turn rotates the second transmission shaft 155, thereby driving the fourth gear 156 to rotate. The fourth gear 156 meshes with the fifth gear 157, which in turn rotates the third transmission shaft 158. The third transmission shaft 158 has a blade holder 162, which in turn drives the blade holder 162 to rotate.
[0040] It should be noted that, considering the change in the direction of power transmission, the type and number of teeth of the aforementioned gears can be determined according to requirements; for example, the aforementioned gears can be bevel gears.
[0041] By adopting a mechanical gear transmission method, the structure is simple and the transmission efficiency is high. In addition, gear transmission has the characteristics of high load-bearing capacity and impact resistance, making it particularly suitable for heavy-duty field conditions. It helps to improve the stability of overall power transmission, reduce the possibility of failure, and improve overall durability.
[0042] In some embodiments, such as Figures 3 to 6 As shown, the loosening component 140 also includes an adjustment module 170, which includes a connecting fastener 1711, a connecting plate 171, and a slider 172. The connecting fastener 1711 is connected to the third drive shaft 158 and the connecting plate 171, respectively. The slider 172 is connected to the connecting plate 171 and the frame 110, respectively. The slider 172 can drive the connecting plate 171 to move along the width direction of the harvesting device 100.
[0043] A slider 172 is provided on the frame 110. The slider 172 can move along the second direction Y. A connecting plate 171 is provided above the slider 172. A connecting fastener 1711 is provided above the connecting plate 171. The connecting fastener 1711 is connected to the third drive shaft 158. Therefore, the connecting plate 171 above the slider 172 can provide support for the third drive shaft 158. At the same time, the connecting plate 171 can also drive the third drive shaft 158 to move along the second direction Y.
[0044] It should be noted that the movement of the third drive shaft 158 along the second direction Y enables the engagement and disengagement of the fifth gear 157 and the fourth gear 156, thus enabling the connection or disconnection of power transmission. In special cases, the connecting plate 171 can be moved directly along the second direction Y to disengage the fifth gear 157 and the fourth gear 156, stopping the operation of the blade 161.
[0045] In some embodiments, such as Figures 3 to 6As shown, the adjustment module 170 also includes a lever 173, one end of which is connected to the connecting plate 171, and the other end of which extends to the outside of the frame 110.
[0046] The lever 173 is a structure used to move the connecting plate 171 along the second direction Y to improve the ease of operation. By connecting the lever 173 to the connecting plate 171, in an emergency, the lever 173 can be pulled directly to separate the fifth gear 157 from the fourth gear 156, making the operation simple and quick.
[0047] In some embodiments, a connector 1731 is provided at one end of the lever 173 near the connecting plate 171. The connector 1731 is connected to the connecting plate 171. Pulling the lever 173 causes the connector 1731 to move, and the connector 1731 causes the connecting plate 171 to move along the second direction Y.
[0048] In some embodiments, such as Figures 3 to 6 As shown, the adjustment module 170 also includes a return rod 174, one end of which is provided with a locking part 1741. The locking part 1741 can contact the connecting plate 171 to restrict the connecting plate 171 from moving along the width direction of the harvesting device 100.
[0049] The return lever 174 is a structure used to limit the movement of the connecting plate 171 in the second direction Y to prevent the fifth gear 157 from accidentally separating from the fourth gear 156.
[0050] One end of the return lever 174 is provided with a locking part 1741, which contacts the connecting plate 171 when the fifth gear 157 and the fourth gear 156 are engaged. For example, a large frictional force is generated between the locking part 1741 and the connecting plate 171 to prevent relative movement between them. When it is necessary to stop operation, the return lever 174 separates the locking part 1741 from the connecting plate 171. Under the action of the lever 173, the connecting plate 171 can be moved along the second direction Y, thereby separating the fifth gear 157 from the fourth gear 156.
[0051] In some embodiments, the connecting plate 171 is provided with a groove, and the snap-fit portion 1741 can extend into the groove and contact the connecting plate 171. The groove is used to restrict the connecting plate 171 from moving along the width direction of the harvesting device 100.
[0052] When the blade 161 is required to run, the fifth gear 157 meshes with the fourth gear 156, and the locking part 1741 is located in the groove of the connecting plate 171 at this time. The locking part 1741 cooperates with the groove to restrict the movement of the connecting plate 171 in the second direction Y.
[0053] When the blade 161 needs to stop running, the locking part 1741 is lifted out of the groove by the action of the return rod 174, and the locking part 1741 is separated from the groove. The two are no longer restricted. At this time, by pulling the lever 173, the lever 173 can drive the connecting plate 171 to move along the second direction Y, so that the fifth gear 157 is separated from the fourth gear 156.
[0054] In some embodiments, such as Figures 3 to 6 As shown, the adjustment module 170 also includes a tension spring 175. One end of the tension spring 175 is connected to the frame 110, and the other end of the tension spring 175 is connected to the return rod 174. Under the elastic force of the tension spring 175, the snap-fit part 1741 is pressed into contact with the connecting plate 171.
[0055] The tension spring 175 is a component used for automatic contact between the locking part 1741 and the connecting plate 171. One end of the tension spring 175 is fixed to the frame 110, and the other end is connected to the return rod 174. Under the action of the elastic force, the locking part 1741 will press the connecting plate 171.
[0056] For example, the connecting plate 171 is provided with a groove. When the connecting plate 171 moves along the second direction Y to the position where the fifth gear 157 and the fourth gear 156 are engaged, the locking part 1741 will automatically lock into the groove under the elastic force of the tension spring 175. When it is necessary to stop operation, by pulling up the return rod 174, the elastic force of the tension spring 175 is overcome, causing the locking part 1741 to disengage from the groove. Then, by pulling the lever 173, the lever 173 can drive the connecting plate 171 to move along the second direction Y, so that the fifth gear 157 and the fourth gear 156 are separated.
[0057] In some embodiments, the third drive shaft 158 is provided with a plurality of blade holders 162 spaced apart along the axial direction, and each blade holder 162 fixes a plurality of blades 161 respectively.
[0058] The axial direction of the third drive shaft 158 is parallel to the second direction Y. Multiple blade holders 162 are spaced apart along the axial direction of the third drive shaft 158. The specific number is not limited, such as 2, 3, 4, etc. By setting multiple blade holders 162, the efficiency of loosening soil can be improved.
[0059] Each blade holder 162 holds multiple blades 161, the specific number of which is not limited, such as 4, 6, 8, etc. By setting multiple blades 161, it is helpful to increase the density of loosened soil per unit area.
[0060] In some embodiments, the soil loosening assembly 140 includes two sets of blade modules 160, which are arranged on both sides of the frame 110 along the width direction of the harvesting device 100.
[0061] The harvesting device 100 can have a blade module 160 on only one side or on both sides. The two sets of blade modules 160 are arranged on both sides of the frame 110 along the second direction Y, which also helps to improve the efficiency of loosening the soil.
[0062] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Any other corresponding changes and modifications made based on the technical concept of this application should be included within the scope of protection of the claims of this application.
Claims
1. A multifunctional lettuce harvesting device, characterized in that, include: The frame is equipped with a drive motor for driving the harvesting device forward; The collection component, located at the front end of the frame in the direction of travel, is used to collect lettuce. A collection component is connected to the rack and adjacent to the collection component, the collection component being used to collect the lettuce cut by the collection component; Soil loosening assembly, including a blade module and a power transmission module connected to the blade module; The output shaft of the drive motor is equipped with a motor output gear, and the power transmission module is connected to the motor output gear for transmission.
2. The multifunctional lettuce harvesting device according to claim 1, characterized in that, The blade module includes a blade holder and a blade fixed on the blade holder; the power transmission module includes multiple cooperating drive shafts and gears, and the motor output gear is connected to the blade holder through the drive shafts and gears.
3. The multifunctional lettuce harvesting device according to claim 2, characterized in that, The power transmission module includes: The first drive shaft has a first gear and a second gear connected to its two ends respectively; The second drive shaft is connected to the third gear and the fourth gear at its two ends, respectively. The third drive shaft is connected to the blade holder, and one end of the third drive shaft is connected to the fifth gear; The motor output gear meshes with the first gear, the second gear meshes with the third gear, and the fourth gear meshes with the fifth gear.
4. The multifunctional lettuce harvesting device according to claim 3, characterized in that, The soil loosening component also includes an adjustment module, which includes a connecting fastener, a connecting plate, and a slider. The connecting fastener is connected to the third drive shaft and the connecting plate, and the slider is connected to the connecting plate and the frame. The slider can drive the connecting plate to move along the width direction of the harvesting device.
5. The multifunctional lettuce harvesting device according to claim 4, characterized in that, The adjustment module also includes a lever, one end of which is connected to the connecting plate, and the other end of which extends to the outside of the frame.
6. The multifunctional lettuce harvesting device according to claim 4, characterized in that, The adjustment module also includes a return rod, one end of which is provided with a locking part that can contact the connecting plate to restrict the movement of the connecting plate along the width direction of the harvesting device.
7. The multifunctional lettuce harvesting device according to claim 6, characterized in that, The connecting plate is provided with a groove, and the snap-fit part can extend into the groove and contact the connecting plate. The groove is used to restrict the movement of the connecting plate along the width direction of the harvesting device.
8. The multifunctional lettuce harvesting device according to claim 6 or 7, characterized in that, The adjustment module also includes a tension spring, one end of which is connected to the frame and the other end of which is connected to the return rod. Under the action of the tension spring, the snap-fit part is pressed into contact with the connecting plate.
9. The multifunctional lettuce harvesting device according to claim 3, characterized in that, The third drive shaft is provided with a plurality of blade holders spaced apart along the axial direction, and each blade holder fixes a plurality of blades.
10. The multifunctional lettuce harvesting device according to claim 1, characterized in that, The soil loosening component includes two sets of blade modules, which are arranged on both sides of the frame along the width direction of the harvesting device.