Asparagus lettuce harvesting integrated device

Abstract

The utility model discloses an asparagus lettuce harvesting integrated device which comprises a cam type four-connecting-rod gathering mechanism, a space cam reciprocating cutter mechanism, a reciprocating type chain linkage variable speed lifting mechanism and a self-adaptive leaf removing mechanism. The cam type four-connecting-rod gathering mechanism and the reciprocating type chain linkage variable-speed lifting mechanism are closely adjacent to each other and are installed on the two sides of the interior of the asparagus lettuce harvesting all-in-one machine respectively, and the space cam reciprocating cutter mechanism is arranged on the lower portion of the cam type four-connecting-rod gathering mechanism and the lower portion of the reciprocating type chain linkage variable-speed lifting mechanism. The self-adaptive leaf removing mechanism is located above the cam type four-connecting-rod gathering mechanism and the reciprocating type chain linkage variable-speed lifting mechanism. The multi-stage transmission device is driven by the motor, and the cam type four-connecting-rod gathering mechanism, the space cam reciprocating cutter mechanism, the reciprocating type chain linkage variable-speed lifting mechanism and the self-adaptive leaf removing mechanism are matched, so that the processes of gathering, harvesting, conveying and leaf removing of asparagus lettuce are achieved, the working intensity of related operation can be effectively relieved, and the working efficiency is improved. The asparagus lettuce harvesting efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of lettuce harvesting integrated device, which belongs to the field of agricultural mechanical engineering. BACKGROUND

[0002] Lettuce is a common vegetable, with large sales and wide planting. Currently, lettuce harvesting is mostly done manually. The process of manual lettuce harvesting includes harvesting, leaf removal, collection, etc. The work process is complicated, the efficiency is low, the labor intensity is high, and the labor cost is high. In addition, the lettuce stems and leaves are easily damaged during manual lettuce harvesting, affecting the quality.

[0003] Therefore, it is necessary to improve the existing technology to solve the problems of the prior art. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of lettuce harvesting integrated device to solve the problems existing in the prior art, which can realize automatic harvesting, thereby effectively improving the efficiency of lettuce harvesting.

[0005] The utility model adopts the technical scheme of: a kind of lettuce harvesting integrated device, including cam four-bar linkage mechanism, space cam reciprocating knife mechanism, reciprocating chain linkage variable speed lifting mechanism and self-adapting leaf removal mechanism;

[0006] The cam four-bar linkage mechanism includes a shift fork, a cam, a plurality of bearings, a bearing seat, a shift fork connecting rod and a shift fork shaft. The shift fork shaft is vertically installed on the reciprocating saw support frame through the bearing seat. The cam is coaxial with the shift fork and in contact with it. The cam and the shift fork are installed on the shift fork shaft. The shift fork connecting rod is installed on the shift fork through the bearing. The bearing is in contact with the cam.

[0007] The space cam reciprocating knife mechanism includes a reciprocating cutting blade, a space cam, a first synchronous pulley, a second synchronous pulley, a third synchronous pulley and a fourth synchronous pulley. The space cam is installed on the reciprocating saw support frame. The reciprocating cutting blade is installed on the groove curve formed on the side surface of the space cam through the bearing. The first synchronous pulley is in contact with the L-shaped bearing seat and is installed on the driving shaft together. The second synchronous pulley is in contact with the space cam and is installed on the reciprocating saw support frame together.

[0008] The reciprocating chain-linked speed-changing lifting mechanism includes a lifting plate, a surrounding wall, a chain, a conveyor pad, a buckle, a first drive sprocket, a second drive sprocket, an 84 series stepper motor, and a motor shaft. The third synchronous pulley is in contact with the first synchronous pulley and is mounted on the drive shaft. The fourth synchronous pulley is in contact with the 84 series stepper motor and is mounted on the motor shaft. The first drive sprocket is mounted on the drive shaft, the second drive sprocket is mounted on the driven shaft, the chain is mounted on the first drive sprocket and the second drive sprocket, the buckle is mounted on the chain link, and the conveyor pad is mounted on the lower part of the lifting plate.

[0009] The adaptive leaf removal mechanism includes a first light track mounting bracket, a second light track mounting bracket, a first light track, a second light track, a third light track, a fourth light track, a first light track sleeve, a second light track sleeve, and a V-shaped collector. The first light track mounting bracket and the second light track mounting bracket are mounted opposite each other on the leaf removal base plate. The first light track, the second light track, the third light track, and the fourth light track are mounted on the first light track mounting bracket and the second light track mounting bracket. The first light track sleeve is mounted on the first light track and the third light track. The second light track sleeve is mounted on the second light track and the fourth light track. The two V-shaped collectors are mounted on the first light track sleeve and the second light track sleeve respectively, with their upper and lower parts in staggered contact.

[0010] Furthermore, a fixed base plate is installed on the first optical track sleeve and the second optical track sleeve respectively.

[0011] Furthermore, the first optical track mounting bracket is in the shape of a right trapezoid, and the second optical track mounting bracket is in the shape of a long strip.

[0012] Furthermore, the first and second light track sleeves are U-shaped.

[0013] Furthermore, it also includes a motor, on which a worm gear is mounted, and a worm wheel is mounted on the shift fork shaft, the worm wheel meshing with the worm gear.

[0014] Furthermore, it also includes a hook main board, wherein the lifting plate and the enclosure wall are in the shape of a Leroy triangle, and the lifting plate is mounted on the conveyor pad via the hook main board.

[0015] Furthermore, it also includes a vertical linear rail, and a slider is installed on one side of the conveyor pad, the slider cooperating with the vertical linear rail.

[0016] Furthermore, the first drive sprocket is mounted at one end of the drive shaft and is opposite to the third synchronous pulley.

[0017] Furthermore, the V-shaped collector consists of two V-shaped plates, with the openings of the two V-shaped plates facing each other and mounted on the leaf removal bottom plate.

[0018] Furthermore, a blade collecting device is installed below the blade removal base plate.

[0019] This utility model has the following beneficial effects: The integrated lettuce harvesting device of this utility model, through a multi-stage transmission device driven by a motor, realizes the coordination between four mechanisms: a cam-type four-bar linkage gathering mechanism, a spatial cam reciprocating blade mechanism, a reciprocating chain linkage speed-changing lifting mechanism, and an adaptive leaf removal mechanism, thereby achieving the process of gathering, harvesting, transporting, and removing leaves from lettuce. This can effectively reduce the workload of related operations and improve the efficiency of lettuce harvesting. Attached image description:

[0020] Figure 1 This is a schematic diagram of the integrated lettuce harvesting device of this utility model.

[0021] Figure 2 Another schematic diagram of the integrated lettuce harvesting device of this utility model.

[0022] Figure 3 This is a schematic diagram of a cam-type four-bar linkage mechanism.

[0023] Figure 4 This is a partial schematic diagram of a reciprocating chain-driven variable speed lifting mechanism.

[0024] Figure 5 This is a schematic diagram of the shift fork and cam installation.

[0025] Figure 6 This is a partial schematic diagram of the adaptive leaf removal mechanism. Detailed implementation method:

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] This utility model relates to an integrated lettuce harvesting device, which includes a cam-type four-bar linkage gathering mechanism, a spatial cam reciprocating blade mechanism, a reciprocating chain-linked speed-changing lifting mechanism, and an adaptive leaf removal mechanism.

[0028] The cam-type four-bar linkage gathering mechanism and the reciprocating chain linkage speed-changing lifting mechanism are adjacent to each other and installed on both sides inside the lettuce harvesting machine. The spatial cam reciprocating knife mechanism is located below the cam-type four-bar linkage gathering mechanism and the reciprocating chain linkage speed-changing lifting mechanism, while the adaptive leaf removal mechanism is located above the cam-type four-bar linkage gathering mechanism and the reciprocating chain linkage speed-changing lifting mechanism.

[0029] The cam-type four-bar linkage includes a shift fork 5, a cam 6, several bearings, a shift fork connecting rod 22, and a shift fork shaft 7. The shift fork shaft 7 is vertically mounted on the reciprocating saw support frame 23 via a bearing seat (not shown). The four cams 6 are coaxial with and in contact with the four shift forks 5 respectively. The cams 6 and the shift forks 5 are mounted on the shift fork shaft 7. The shift fork connecting rod 22 is mounted on the shift fork 5 via a bearing 24, and the bearing 24 is in contact with the cams 6.

[0030] The spatial cam reciprocating cutter mechanism includes a reciprocating cutting blade 9, a spatial cam 10, a first synchronous pulley 25, a second synchronous pulley 26, a third synchronous pulley 27, and a fourth synchronous pulley 28. The spatial cam 10 is mounted on the reciprocating saw support frame 23. A groove curve (not shown) is formed on the side surface of the spatial cam 10. The reciprocating cutting blade 9 is mounted on the groove curve of the spatial cam 10 via a bearing 24. The first synchronous pulley 25 is mounted on the drive shaft 13 after contacting the L-shaped bearing seat 12. The second synchronous pulley 26 is mounted on the reciprocating saw support frame 23 after contacting the spatial cam 10.

[0031] The reciprocating chain-driven variable speed lifting mechanism includes a lifting plate 8, a surrounding wall 4, a chain 14, a conveyor pad 11, a buckle 21, a first drive sprocket 29, and a second drive sprocket 30. A third synchronous pulley 27 is mounted on the drive shaft 13 in contact with the first synchronous pulley 25. A fourth synchronous pulley 28 is mounted on the motor shaft 32 in contact with the 84 series stepper motor 31. The first drive sprocket 29 is mounted on the drive shaft 13, and the second drive sprocket 30 is mounted on the driven shaft 16. The chain 14 is mounted on the first drive sprocket 29 and the second drive sprocket 30. The buckle 21 consists of two "L"-shaped fixing pieces and is mounted on the chain links of the chain 14. The conveyor pad 11 is mounted on the lower part of the lifting plate 8.

[0032] The adaptive leaf removal mechanism includes a first light track mounting bracket 17, a second light track mounting bracket 3, a first light track 33, a second light track 34, a third light track 35, a fourth light track 36, a first light track sleeve 2, a second light track sleeve 1, a fixed base plate 37, and a V-shaped collector 15. The first light track mounting bracket 17 is a right-angled trapezoid, and the second light track mounting bracket 3 is elongated. The first light track mounting bracket 17 and the second light track mounting bracket 3 are mounted opposite each other on the leaf removal base plate 38. The first light track 33, the second light track 34, the third light track 35, and the fourth light track 36 are mounted on the pre-drilled holes in the first light track mounting bracket 17 and the second light track mounting bracket 3. The first light track sleeve 2 and the second light track sleeve 1 are U-shaped. The first light track sleeve 2 is mounted on the first light track 33 and the third light track 35 through its pre-drilled holes, and the second light track sleeve 1 is mounted on the second light track 34 and the fourth light track 36 through its pre-drilled holes. Two fixed base plates 37 are respectively installed on the first optical track sleeve 2 and the second optical track sleeve 1, and two V-shaped collectors 15 are respectively installed on the first optical track sleeve 2 and the second optical track sleeve 1 in staggered contact.

[0033] The utility model of the integrated lettuce harvesting device is a box-type structure. A worm gear 19 is installed on the fork shaft 7. The worm gear 19 meshes with the worm 20 on the motor 39. The forks 5 are installed on the fork shaft 7 at certain intervals.

[0034] The lifting plate 8 and the enclosure wall 4 are in the shape of a Leroy triangle. The lifting plate 8 is installed on the conveyor pad 11 via the hook main plate 40. A slider 41 is installed on one side of the conveyor pad 11, and the slider 41 cooperates with the vertical rail 18.

[0035] Chain 14 is mounted on first drive sprocket 29 and second drive sprocket 30. First drive sprocket 29 is mounted on one end of drive shaft 13 and is opposite to third synchronous pulley 27.

[0036] The first light track mounting bracket 17 is a right-angled trapezoid, and the second light track mounting bracket 3 is a long strip. The first light track mounting bracket 17 and the second light track mounting bracket 3 are mounted opposite each other on the leaf removal base plate 38. The first light track 33, the second light track 34, the third light track 35, and the fourth light track 36 are installed at certain intervals between the first light track mounting bracket 17 and the second light track mounting bracket 3.

[0037] The V-shaped collector 15 consists of two V-shaped plates with their openings facing each other on the leaf removal bottom plate 38. A leaf collection device 42 is installed below the leaf removal bottom plate 38.

[0038] The working principle of this integrated lettuce harvesting device is as follows: Through the coordinated operation of a multi-stage transmission system, the four mechanisms—cam-type four-bar linkage gathering mechanism, spatial cam reciprocating blade mechanism, reciprocating chain-linked speed-changing lifting mechanism, and adaptive leaf-removing mechanism—cooperate with each other. An 84-series stepper motor 31 drives the cam-type four-bar linkage gathering mechanism via a worm gear 19 and a worm 20. The worm 20 drives the worm gear 19 to rotate the four sets of cams 6 synchronously. The bearing 24 is connected to the fork 5 via a fork connecting rod 22. The cams 6, through contact with the bearing 24, cause the forks 5 to dynamically gather, thus enabling the four fork sets to precisely gather the lettuce. Subsequently, the synchronous belt pulley system transmits power to the spatial cam reciprocating blade mechanism. The groove curve on the surface of the spatial cam 10 drives the reciprocating cutting blade 9 via the bearing 24, achieving linear reciprocating motion. This, combined with the vertical displacement of the lifting mechanism, completes the flat cutting of the lettuce root. After cutting, the lettuce is received by a reciprocating chain-linked variable-speed lifting mechanism. The chain system, in cooperation with the buckle assembly, drives the Leroy triangular lifting plate 8 to move vertically along the vertical rail 18. When the buckle 21 drives the conveyor pad 11 to the highest point, the conveyor pad 11 disengages from the buckle 21, causing the lifting plate 8 to automatically fall back, forming a cyclical transmission. At the same time, the adaptive leaf removal mechanism, through the multi-stage linkage of the first optical track sleeve 2 and the second optical track sleeve 1, drives the staggered V-shaped collectors 15 to achieve dynamic closure. The two V-shaped collectors 15 adaptively adjust the opening and closing angle according to the diameter of the lettuce to complete the leaf removal action. Through the precise timing coordination of the synchronous belt pulley group, sprocket group, worm gear 19, and worm 20, the entire process of lettuce gathering, cutting, conveying, and leaf removal is automated, which greatly improves efficiency and significantly reduces the intensity of manual labor compared to traditional harvesting methods.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.

Claims

1. A lettuce harvesting integrated device, characterized in that: These include a cam-type four-bar linkage convergence mechanism, a spatial cam reciprocating blade mechanism, a reciprocating chain linkage speed change lifting mechanism, and an adaptive leaf removal mechanism; The cam-type four-bar linkage includes a fork (5), a cam (6), several bearings, bearing seats, a fork link (22), and a fork shaft (7). The fork shaft (7) is vertically mounted on the reciprocating saw support frame (23) via the bearing seats. The cam (6) is coaxial with and in contact with the fork (5). The cam (6) and the fork (5) are mounted on the fork shaft (7). The fork link (22) is mounted on the fork (5) via the bearing (24). The bearing (24) is in contact with the cam (6). The spatial cam reciprocating cutter mechanism includes a reciprocating cutting blade (9), a spatial cam (10), a first synchronous pulley (25), a second synchronous pulley (26), a third synchronous pulley (27), and a fourth synchronous pulley (28). The spatial cam (10) is mounted on the reciprocating saw support frame (23). The reciprocating cutting blade (9) is mounted on the groove curve formed on the side surface of the spatial cam (10) through a bearing. The first synchronous pulley (25) is mounted on the drive shaft (13) after contacting the L-shaped bearing seat (12). The second synchronous pulley (26) is mounted on the reciprocating saw support frame (23) after contacting the spatial cam (10). The reciprocating chain-linked speed-changing lifting mechanism includes a lifting plate (8), a surrounding wall (4), a chain (14), a conveyor pad (11), a buckle (21), a first drive sprocket (29), a second drive sprocket (30), an 84 series stepper motor (31), and a motor shaft (32). The third synchronous pulley (27) is in contact with the first synchronous pulley (25) and installed on the drive shaft (13). The fourth synchronous pulley (28) is in contact with the 84 series stepper motor (31) and installed on the motor shaft (32). The first drive sprocket (29) is installed on the drive shaft (13). The second drive sprocket (30) is installed on the driven shaft (16). The chain (14) is installed on the first drive sprocket (29) and the second drive sprocket (30). The buckle (21) is installed on the chain link of the chain (14). The conveyor pad (11) is installed on the lower part of the lifting plate (8). The adaptive leaf removal mechanism includes a first light track mounting bracket (17), a second light track mounting bracket (3), a first light track (33), a second light track (34), a third light track (35), a fourth light track (36), a first light track sleeve (2), a second light track sleeve (1), and a V-shaped collector (15). The first light track mounting bracket (17) and the second light track mounting bracket (3) are mounted opposite each other on the leaf removal base plate (38). The first light track (33), the second light track (34), the third light track (35), and the fourth light track (36) are mounted on the first light track mounting bracket (17) and the second light track mounting bracket (3). The first light track sleeve (2) is mounted on the first light track (33) and the third light track (35). The second light track sleeve (1) is mounted on the second light track (34) and the fourth light track (36). The two V-shaped collectors (15) are staggered and contact each other, respectively mounted on the first light track sleeve (2) and the second light track sleeve (1).

2. The integrated lettuce harvesting device as described in claim 1, characterized in that: Fixed base plates (37) are respectively installed on the first optical track sleeve (2) and the second optical track sleeve (1).

3. The integrated lettuce harvesting device as described in claim 2, characterized in that: The first optical track mounting bracket (17) is in the shape of a right trapezoid, and the second optical track mounting bracket (3) is in the shape of a long strip.

4. The integrated lettuce harvesting device as described in claim 3, characterized in that: The first optical track sleeve (2) and the second optical track sleeve (1) are concave in shape.

5. The integrated lettuce harvesting device as described in claim 4, characterized in that: It also includes a motor (39), on which a worm (20) is mounted, and a worm wheel (19) is mounted on the shift fork shaft (7), the worm wheel (19) meshing with the worm (20).

6. The integrated lettuce harvesting device as described in claim 5, characterized in that: It also includes a hook main board (40), the lifting plate (8) and the enclosure wall (4) are in the shape of a Leroy triangle, and the lifting plate (8) is installed on the conveyor pad (11) through the hook main board (40).

7. The integrated lettuce harvesting device as described in claim 6, characterized in that: It also includes a vertical rail (18), and a slider (41) is installed on one side of the conveying pad (11), the slider (41) cooperating with the vertical rail (18).

8. The integrated lettuce harvesting device as described in claim 7, characterized in that: The first drive sprocket (29) is mounted at one end of the drive shaft (13) and is opposite to the third synchronous pulley (27).

9. The integrated lettuce harvesting device as described in claim 8, characterized in that: The V-shaped collector (15) consists of two V-shaped plates with their openings facing each other and mounted on the leaf removal bottom plate (38).

10. The integrated lettuce harvesting device as described in claim 9, characterized in that: A blade collecting device (42) is installed below the blade removal base plate (38).

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