Lettuce root removing harvester

Abstract

The invention relates to the technical field of agricultural instruments, and discloses an asparagus lettuce root removing harvester which comprises a vehicle body, wheels are rotationally arranged on the two sides of the vehicle body through axles, a conveying chassis is installed on the vehicle body, and two rows of conveying mechanisms are arranged on the conveying chassis. A conveying mechanism is arranged on the conveying chassis, a gathering mechanism is arranged on the portion, located at the front end of the conveying mechanism, of the conveying chassis, the conveying mechanism is covered with a sleeve shell installed on the vehicle body, a shifting shell is arranged in front of the sleeve shell, the gathering mechanism is covered with the shifting shell, and a cutting mechanism is installed on the inner wall of the sleeve shell. A structure on the cutting mechanism is communicated to the front end of the conveying chassis, a buffering mechanism is installed on the vehicle body, and the rear end of the conveying mechanism is erected and suspended above the buffering mechanism through the conveying chassis. The asparagus lettuce root removing harvester solves the problems that at present, most of the harvesting links of part of vegetables such as asparagus lettuce are manually operated, labor intensity is high, labor efficiency is low, and consumed time is long.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and particularly relates to a lettuce root-removing harvester. Background Art

[0002] With the increasing demand for healthy diets, lettuce, as a nutritious vegetable, has been favored by more and more consumers; globally, the planting scale of lettuce has been continuously expanding, and many countries and regions have started to grow lettuce as an important agricultural product, resulting in a year-on-year increase in the demand for lettuce production. Moreover, the age structure of agricultural production personnel tends to be aging, and traditional labor-intensive field work has led to a gradual decline in production efficiency; the contradiction between the growing demand for vegetables and the increasingly low production efficiency has begun to emerge. The solution is to use mechanized operations to replace manual labor, improve labor efficiency, reduce labor intensity, and lower labor costs.

[0003] Field production is a labor-intensive industry. A large amount of labor is required from seedling raising, planting, management to harvesting, with high labor intensity, low labor efficiency, and high labor costs. In particular, the harvesting link is the most laborious and time-consuming; through experimental demonstrations, at present, the land tillage and transplanting links of some vegetables such as lettuce have achieved mechanized operations at the technical level, but most of their harvesting links still adopt manual operations, with high labor intensity and low labor efficiency, which is the biggest bottleneck in the current full-process mechanized production.

[0004] Therefore, there is an urgent need for a lettuce harvesting device to achieve the full-process mechanized treatment of lettuce seedling raising, planting, management, and harvesting. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the invention provides a lettuce root-removing harvester, which solves the problems mentioned in the above background.

[0006] The invention provides the following technical solution: A lettuce root-removing harvester, comprising: a vehicle body, on which wheels are rotatably arranged on both sides through wheel axles, a conveying chassis is installed on the vehicle body, two rows of conveying mechanisms are arranged on the conveying chassis, and a gathering mechanism is arranged on the conveying chassis at the front end of the conveying mechanism. A housing is installed on the vehicle body and covers the conveying mechanism. A shell-pushing device is arranged in front of the housing and covers the gathering mechanism. A cutting mechanism is installed on the inner wall of the housing, and the structure of the cutting mechanism communicates to the front end of the conveying chassis. A buffer mechanism is installed on the vehicle body. The rear end of the conveying mechanism is suspended above the buffer mechanism through the conveying chassis. A rear housing is installed on the vehicle body at the rear end of the housing and covers the buffer mechanism. A connecting plate is installed on the front side of the rear housing. A conveying mechanism is rotatably arranged between the inner wall of the buffer mechanism and the connecting plate. A collection box is arranged below the conveying mechanism;

[0007] The gathering mechanism comprises a first gathering frame and a second gathering frame, wherein the first gathering frame and the second gathering frame are provided with a total of four rows of guide mechanisms, the rear end of the first gathering frame is bent and provided with a gathering and conveying mechanism, and the bottoms of the upper structures of the guide mechanism and the gathering and conveying mechanism are both rotatably arranged on the conveying chassis through bearings;

[0008] The cutting mechanism includes a first cutting strip installed at the front end of the conveying chassis, and the first cutting strip is located at the bending part of the first gathering frame, and the second cutting strip is staggered and movably arranged on the first cutting strip, and a toggle member is arranged at one end of the second cutting strip, and a connecting rod is arranged on the toggle member. A third motor is installed on the inner side of the casing, and the output shaft of the third motor passes through the casing and is installed with a crankshaft disk, and the connecting rod is rotatably arranged on the crankshaft disk at one end away from the toggle member.

[0009] Preferably, the conveying chassis includes a transmission plate, the front end of which is attached to the vehicle body, and the front end of the transmission plate is provided with four fork plates, each of which corresponds to a row of the guide mechanisms, the rear end of the transmission plate is installed on the vehicle body through a set base frame, and the rear end of the transmission plate is inclinedly mounted through the base frame to form a bending angle with its front end, and the conveying mechanism is arranged on the rear end of the transmission plate and is spliced ​​with the rear end of the gathering mechanism.

[0010] Preferably, the conveying mechanism includes a first frame plate installed on a conveying chassis, belt rollers are rotatably provided at both ends of the first frame plate, the two belt rollers are connected by a drive belt transmission sleeve, a wavy soft conveyor belt is attached to the outer edge of the drive belt, and a second frame plate is provided at the end of the belt roller away from the first frame plate via the drive belt.

[0011] Preferably, the shifting member includes a short shaft arranged on the inner wall of the shift housing, a shaft sleeve is rotatably provided on the short shaft, a first shifting arm is integrally provided on the surface of the shaft sleeve, a first shifting shaft is integrally provided on the end of the first shifting arm, the end of the connecting rod away from the crankshaft disk is in the shape of a square frame, and the square frame at one end of the connecting rod is sleeved on the first shifting shaft.

[0012] Preferably, a second lever arm is integrally provided on the sleeve, and the second lever arm is arranged at an angle of ninety degrees to the first lever arm. A groove is vertically provided at one end of the second lever arm away from the sleeve, a second lever shaft is provided inside the groove, and the second lever shaft is installed on the second cutting strip.

[0013] Preferably, the guiding mechanism includes a plurality of guide rollers rotatably arranged on the first frame or the second frame through bearings, the top of the guide rollers passes through the first frame or the second frame and is installed with a worm wheel, the outer edge of the worm wheel is meshed with a worm, the end of the worm is installed with a first motor, and the first motor is installed on the inner wall of the shift housing.

[0014] Preferably, the gathering and conveying mechanism includes a gathering roller and a lifting roller which are rotatably arranged on the first gathering frame through bearings, the top of the gathering roller passes through the first gathering frame and is equipped with a first pulley, the top of the lifting roller passes through the first gathering frame and is equipped with a second motor, the second motor is installed on the inner wall of the lifting shell, and the lifting roller is provided with a second pulley, and the first pulley is connected to the second pulley through a sleeved belt transmission.

[0015] Preferably, the lifting roller comprises a roller body, the outer edge of the roller body is integrally provided with convex ridges distributed in a ring shape, and the outer edge of the convex ridge is provided with a screw groove in a threaded shape.

[0016] Preferably, the conveying mechanism includes two conveying rollers arranged to rotate longitudinally inside the buffer mechanism, wherein the axis core of one of the conveying rollers passes through the buffer mechanism and a right-angle motor is installed on the back side thereof, and flexible belts are provided on the transmission sleeves of the two conveying rollers, and a dial pad is integrally provided on the outer edge of the flexible belt.

[0017] Preferably, a contour pad is installed at the bottom of the dial housing, and the number and position of the contour pad respectively correspond to the number and position of each column of guide mechanisms.

[0018] Compared with the prior art, the invention has the following beneficial effects:

[0019] 1. The lettuce rooting harvester is provided with a gathering mechanism, a cutting mechanism, a conveying mechanism, a buffer mechanism and a collecting box. The vehicle body is used to move forward to drive the separately planted lettuces into the gathering mechanism, and then the roots are cut off by the cutting mechanism and delivered to the conveying mechanism. The conveying mechanism is then used to deliver the lettuces to the buffer mechanism, and the lettuces are gathered by the buffer mechanism and fall into the collecting box, thereby realizing mechanized harvesting of planted lettuces, saving a lot of manpower, and at the same time improving the harvesting efficiency of lettuces, and improving the harvesting link of the whole mechanized production steps of lettuce.

[0020] 2. The lettuce rooting harvester is provided with a cutting mechanism. After the lettuce is put into the gathering mechanism, it will first pass through the first cutting strip and the second cutting strip of the cutting mechanism before being passively gathered. By using the operation of the third motor, the kinetic energy is converted into a swinging force through the crankshaft disk, the connecting rod and the toggle member in sequence and transmitted to the second cutting strip, so that the second cutting strip moves left and right, and cooperates with the stationary first cutting strip to generate a staggered cutting force, so that all the roots of the lettuce that pass through are removed, and soil is prevented from entering the harvester along with the roots of the lettuce. To a certain extent, the cleanliness of the lettuce is guaranteed, which is convenient for subsequent processing.

[0021] 3. The lettuce rooting harvester is provided with a gathering mechanism. When harvesting lettuce, it can harvest lettuce planted in two rows at a time, which not only increases the lettuce harvesting efficiency, but also can push the lettuces planted in the two rows into the planting interval to form a single row for delivery to the conveying mechanism according to the planting interval of the lettuce, thereby preventing the conveyed lettuce from being squeezed and damaged.

[0022] 4. The lettuce rooting harvester is provided with a conveying mechanism, and utilizes the wavy soft conveyor belt on the conveying mechanism to deliver the lettuce delivered by the gathering mechanism. The lettuce can be supported to stand upright, and the lettuce can be pushed and pulled to move onto the operating platform. The wavy gap is utilized to separate and deliver each lettuce individually, thereby reducing the damage to the lettuce leaves during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the invention;

[0024] Figure 2 It is a schematic diagram of the partial shelling structure of the invention;

[0025] Figure 3 It is a schematic diagram of the structure of the gathering mechanism of the invention;

[0026] Figure 4 It is a schematic diagram of the structure of the transmission chassis for the invention;

[0027] Figure 5 A schematic diagram of the disassembled structure of the invented conveying mechanism;

[0028] Figure 6 The invention is a schematic diagram of the cutting mechanism structure;

[0029] Figure 7 It is a schematic diagram of the structure of the toggle member in the cutting mechanism of the invention;

[0030] Figure 8 A schematic diagram of the disassembled structure of the gathering mechanism of the invention;

[0031] Figure 9 It is a schematic diagram of the structure of the gathering and conveying mechanism in the gathering mechanism of the invention;

[0032] Figure 10 This is a schematic diagram of the structure after the transmission chassis on the vehicle body of the invention is disassembled;

[0033] Figure 11 A schematic diagram of the back shell and its internal structure is provided for the invention;

[0034] Figure 12 The invention is a schematic diagram of the buffer mechanism and its internal structure;

[0035] Figure 13 It is a schematic diagram of the structure of the invented transmission mechanism;

[0036] Figure 14 It is a schematic diagram of the partial upward structure of the invented shell.

[0037] In the figure: 1, vehicle body; 2, wheels; 3, transmission chassis; 31, transmission plate; 32, chassis; 4, conveying mechanism; 41, first frame; 42, belt roller; 43, driving belt; 44, soft conveyor belt; 45, second frame; 5, gathering mechanism; 51, first gathering frame; 52, second gathering frame; 53, guiding mechanism; 531, guide roller; 532, worm gear; 533, worm; 534, first motor; 54, gathering mechanism; 541, closing roller; 542, lifting roller; 5421, roller body; 5422, convex edge; 5423, screw groove; 543, first pulley; 544, second Second pulley; 545, second motor; 6, cutting mechanism; 61, first strip cutting; 62, second strip cutting; 63, toggle member; 631, short shaft; 632, bushing; 633, first toggle arm; 634, first toggle shaft; 635, second toggle arm; 636, strip groove; 637, second toggle shaft; 64, connecting rod; 65, third motor; 66, crankshaft disk; 7, buffer mechanism; 8, transmission mechanism; 81, transmission roller; 82, flexible belt; 83, right-angle motor; 84, toggle pad; 9, collection box; 10, sleeve shell; 11, toggle shell; 12, rear shell; 13, connecting plate; 14, contour pad. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the invention.

[0039] See also Figure 1-14 A lettuce rooting harvester comprises: a vehicle body 1, wheels 2 are rotatably arranged on both sides of the vehicle body 1 through axles, a conveying chassis 3 is installed on the vehicle body 1, two rows of conveying mechanisms 4 are arranged on the conveying chassis 3, and a gathering mechanism 5 is arranged on the conveying chassis 3 located at the front end of the conveying mechanism 4, the conveying mechanism 4 is covered with a cover 10 installed on the vehicle body 1, a shifting shell 11 is arranged in front of the cover 10, the shifting shell 11 covers the gathering mechanism 5, and a cutting machine is installed on the inner wall of the cover 10 The structure on the cutting mechanism 6 is connected to the front end of the conveying chassis 3, a buffer mechanism 7 is installed on the vehicle body 1, and the rear end of the conveying mechanism 4 is suspended above the buffer mechanism 7 through the conveying chassis 3. The rear end of the casing 10 is provided with a rear shell 12 installed on the vehicle body 1, and the rear shell 12 covers the buffer mechanism 7. A connecting plate 13 is installed on the front side of the rear shell 12. A conveying mechanism 8 is rotatably arranged between the inner wall of the buffer mechanism 7 and the connecting plate 13, and a collecting box 9 is arranged below the conveying mechanism 8;

[0040] like Figure 3 As shown, the gathering mechanism 5 includes a first gathering frame 51 and a second gathering frame 52, and a total of four rows of guide mechanisms 53 are arranged on the first gathering frame 51 and the second gathering frame 52. The rear end of the first gathering frame 51 is bent and is provided with a gathering and conveying mechanism 54. The bottoms of the upper structures of the guide mechanism 53 and the gathering and conveying mechanism 54 are both rotatably arranged on the conveying chassis 3 through bearings;

[0041] like Figure 6 As shown, the cutting mechanism 6 includes a first cutting strip 61 installed at the front end of the conveying chassis 3, and the first cutting strip 61 is located at the bending part of the first gathering frame 51, and the second cutting strip 62 is staggered and movably arranged on the first cutting strip 61, and a toggle member 63 is arranged at one end of the second cutting strip 62, and a connecting rod 64 is arranged on the toggle member 63. A third motor 65 is installed on the inner side of the casing 10, and the output shaft of the third motor 65 passes through the casing 10 and is installed with a crank disk 66, and the end of the connecting rod 64 away from the toggle member 63 is rotatably arranged on the crank disk 66. As the third motor 65 is started, the crank disk 66 rotates accordingly, driving the connecting rod 64 to swing back and forth, and transmitting the shaking force to the toggle member 63, and using the toggle member 63 to convert the shaking force into a left and right swinging force, so that the first cutting strip 61 and the second cutting strip 62 can move back and forth and stagger, generate a shearing force, so that the lettuce roots passing through are cut off, and large pieces of soil are prevented from being mixed into the gathering mechanism 5 along with the lettuce roots.

[0042] Among them, Figure 4 As shown, the transmission chassis 3 includes a transmission plate 31, the front end of which is attached to the vehicle body 1, and the front end of the transmission plate 31 is provided with four fork plates, each of which corresponds to a row of guide mechanisms 53. The rear end of the transmission plate 31 is installed on the vehicle body 1 through a base frame 32, and the rear end of the transmission plate 31 is inclined through the base frame 32 to form a bending angle with its front end. The conveying mechanism 4 is arranged on the rear end of the transmission plate 31 and is spliced ​​with the rear end of the gathering mechanism 5. The transmission chassis 3 is used as the base for the splicing of the conveying mechanism 4 and the gathering mechanism 5, so that the lettuce gathered by the gathering mechanism 5 can be directly connected with the conveying mechanism 4, thereby achieving the effect of mechanized harvesting and delivery.

[0043] Among them, Figure 5 As shown, the conveying mechanism 4 includes a first frame plate 41 installed on the conveying chassis 3, and belt rollers 42 are rotatably set at both ends of the first frame plate 41. The two belt rollers 42 are connected by a driving belt 43, and a wavy soft conveyor belt 44 is attached to the outer edge of the driving belt 43. A second frame plate 45 is set at the end of the belt roller 42 away from the first frame plate 41 via the driving belt 43. The soft conveyor belt 44 is set to be wavy, so that the lettuce is sandwiched in the gap between the waves by two rows of soft conveyor belts 44, so that each lettuce stands upright and is transported separately, thereby reducing the damage caused by the lettuce during transportation and improving the appearance of the lettuce after harvesting.

[0044] Among them, Figure 7 As shown, the toggle member 63 includes a short shaft 631 arranged on the inner wall of the toggle housing 11, a shaft sleeve 632 is rotatably sleeved on the short shaft 631, a first toggle arm 633 is integrally arranged on the surface of the shaft sleeve 632, a first toggle shaft 634 is integrally arranged on the end of the first toggle arm 633, an end of the connecting rod 64 away from the crankshaft disc 66 is in a square frame shape, and the square frame at one end of the connecting rod 64 is sleeved on the first toggle shaft 634; a second toggle arm 635 is integrally arranged on the shaft sleeve 632, and the second toggle arm 635 is 90 degrees from the first toggle arm 633. The second lever arm 635 is provided with a vertical groove 636 at one end away from the shaft sleeve 632, and a second lever shaft 637 is provided inside the groove 636. The second lever shaft 637 is installed on the second cutting strip 62. By utilizing the angle between the second lever arm 635 and the first lever arm 633, the forward and backward shaking force transmitted by the connecting rod 64 is rotated back and forth through the shaft sleeve 632, and the force is transmitted to the second lever arm 635 in a left and right swinging effect, so that the first cutting strip 61 and the second cutting strip 62 can move back and forth and interlace, thereby generating a shearing force.

[0045] Among them, Figure 8 As shown, the guiding mechanism 53 includes a plurality of guiding rollers 531 rotatably arranged on the first gathering frame 51 or the second gathering frame 52 through bearings, the top of the guiding roller 531 passes through the first gathering frame 51 or the second gathering frame 52 and is installed with a worm gear 532, the outer edge of the worm gear 532 is meshed with a worm 533, the end of the worm 533 is installed with a first motor 534, and the first motor 534 is installed on the inner wall of the picking shell 11, and the guiding roller 531 is made of a flexible roller. As the lettuce enters the gathering mechanism 5, the adjacent guiding mechanisms 53 in the gathering mechanism 5 synchronously apply a conveying force to the surface of the lettuce, so that the lettuce is cut in a standing posture, thereby avoiding the situation where the lettuce is crushed by the moving gathering mechanism 5.

[0046] Among them, Figure 8 As shown, the gathering and conveying mechanism 54 includes a gathering roller 541 and a lifting roller 542 which are rotatably arranged on the first gathering frame 51 through a bearing, the top of the gathering roller 541 passes through the first gathering frame 51 and is installed with a first pulley 543, the top of the lifting roller 542 passes through the first gathering frame 51 and is installed with a second motor 545, the second motor 545 is installed on the inner wall of the shell 11, and the lifting roller 542 is sleeved with a second pulley 544, the first pulley 543 and the second pulley 544 are connected by a sleeved belt transmission, the gathering roller 541 is made of a flexible roller, after the root of the lettuce entering the gathering mechanism 5 is cut off by the cutting mechanism 6, the gathering roller 541 begins to exert a lateral convergence delivery force on the contacted lettuce, so that the two rows of lettuces are gathered into one row at the front end of the conveying mechanism 4, which increases the harvesting range and facilitates subsequent transportation.

[0047] Among them,Figure 9 As shown in the figure, the lifting roller 542 includes a roller body 5421. An annularly distributed convex rib 5422 is integrally formed on the outer edge of the roller body 5421. A spiral groove 5423 is formed in a spiral shape on the outer edge of the convex rib 5422. By providing the spiral groove 5423, when the lifting roller 542 rotates, the lifting force for squeezing the lettuce can be given in the upward direction along with the rotation of the spiral groove 5423, thereby increasing the height of the lettuce to a certain extent and enabling the lettuce to smoothly cross the bend at the front end of the conveying chassis 3.

[0048] Among them, as Figure 12 shown, the conveying mechanism 8 includes two conveying rollers 81 longitudinally rotatably arranged inside the buffer mechanism 7. The axis core of one of the conveying rollers 81 penetrates through the buffer mechanism 7 and a right-angle motor 83 is installed on its back. A flexible belt 82 is sleeved on the two conveying rollers 81 in a driving manner. A dialing pad 84 is integrally provided on the outer edge of the flexible belt 82. When the lettuce is sent to the top of the buffer mechanism 7 by the conveying mechanism 4, the lettuce falls on the buffer mechanism 7. The ramp on the buffer mechanism 7 is used to gather the fallen lettuce and make it fall on the conveying mechanism 8. Then, by the rotation of the conveying mechanism 8, the lettuce is longitudinally laid down and then sent into the collection box 9.

[0049] Among them, a profiling pad 14 is installed at the bottom of the shelling part 11, and the number and position of the profiling pads 14 respectively correspond to the number and position of each row of guiding mechanisms 53. Considering that the soil quality in different regions is different, generally, the previous rotary tillage operation cannot achieve all fine soil particles, and the ridge surface is not flat. Even after the ridge surface after fine land preparation and ridging has experienced a season of wind and rain, it is impossible to be absolutely flat. During the actual harvesting process, there will be certain undulations on the ridge surface and other situations. Therefore, a circular arc-shaped profiling pad 14 is designed at the bottom of the shelling part 11 to limit the cutting mechanism 6 and lift the height of the cutting mechanism 6 from the planting surface to ensure that the cutting mechanism 6 does not sink into the soil during operation.

[0050] Working principle: When using the harvester to mechanize the harvesting of lettuce, first, the wheels 2 drive the vehicle body 1 to move forward, and align the harvesting gaps of each shelling part 11 at the front end of the vehicle body 1 with a row of lettuce respectively. As the vehicle body 1 moves forward, a row of lettuce enters the gathering mechanism 5. The guiding mechanism 53 operates to straighten the incoming lettuce so that the lettuce stands upright and reaches the cutting mechanism 6. Then, as the cutting mechanism 6 operates, the roots of the lettuce are cut, and the gathering and conveying mechanism 54 is used to lift and deliver the cut lettuce to the conveying mechanism 4. When the lettuce stands upright and reaches the conveying mechanism 4, the conveying mechanism 4 starts to operate to send the lettuce to the buffer mechanism 7. The buffer mechanism 7 is used to gather the lettuce falling from the conveying mechanism 4 and make it fall on the conveying mechanism 8. Then, the conveying mechanism 8 is used to longitudinally lay down the lettuce and send it into the collection box 9. Subsequently, the lettuce can be taken out from the collection box 9.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A lettuce root-removing harvester, characterized in that, include: A vehicle body (1), wherein wheels (2) are rotatably arranged on both sides of the vehicle body (1) via axles, a conveying chassis (3) is installed on the vehicle body (1), two rows of conveying mechanisms (4) are arranged on the conveying chassis (3), and a gathering mechanism (5) is arranged on the conveying chassis (3) located at the front end of the conveying mechanism (4), the conveying mechanism (4) is covered with a casing (10) installed on the vehicle body (1), a shifting casing (11) is arranged in front of the casing (10), and the shifting casing (11) covers the gathering mechanism (5), and a cutting mechanism (6) is installed on the inner wall of the casing (10), and the cutting mechanism (6) is arranged on the inner wall of the casing (10). The structure on the mechanism (6) is connected to the front end of the conveying chassis (3); a buffer mechanism (7) is installed on the vehicle body (1); the rear end of the conveying mechanism (4) is suspended above the buffer mechanism (7) through the conveying chassis (3); the rear end of the casing (10) is provided with a rear shell (12) installed on the vehicle body (1); the rear shell (12) covers the buffer mechanism (7); a connecting plate (13) is installed on the front side of the rear shell (12); a conveying mechanism (8) is rotatably arranged between the inner wall of the buffer mechanism (7) and the connecting plate (13); and a collecting box (9) is arranged below the conveying mechanism (8); The gathering mechanism (5) comprises a first gathering frame (51) and a second gathering frame (52), wherein the first gathering frame (51) and the second gathering frame (52) are provided with a total of four rows of guide mechanisms (53), the rear end of the first gathering frame (51) is bent and provided with a gathering and conveying mechanism (54), and the bottoms of the upper structures of the guide mechanism (53) and the gathering and conveying mechanism (54) are both rotatably arranged on the conveying chassis (3) via bearings; The cutting mechanism (6) comprises a first cutting strip (61) mounted at the front end of the conveying chassis (3), and the first cutting strip (61) is located at the bending position of the first gathering frame (51), and second cutting strips (62) are arranged on the first cutting strip (61) in an alternating manner, and a toggle member (63) is arranged at one end of the second cutting strip (62), and a connecting rod (64) is arranged on the toggle member (63), and a third motor (65) is mounted on the inner side of the casing (10), and the output shaft of the third motor (65) passes through the casing (10) and is mounted with a crankshaft disk (66), and one end of the connecting rod (64) away from the toggle member (63) is rotatably arranged on the crankshaft disk (66).

2. The root-removing harvester for asparagus lettuce according to claim 1, characterized in that The conveying chassis (3) comprises a transmission plate (31), the front end of which is attached to the vehicle body (1), and the front end of which is provided with four fork plates, each of which corresponds to a row of the guide mechanisms (53). The rear end of the transmission plate (31) is installed on the vehicle body (1) via a bottom frame (32), and the rear end of the transmission plate (31) is inclinedly mounted via the bottom frame (32) to form a bending angle with the front end thereof. The conveying mechanism (4) is arranged on the rear end of the transmission plate (31) and is assembled with the rear end of the gathering mechanism (5).

3. The root-removing harvester for asparagus lettuce according to claim 1, wherein The conveying mechanism (4) includes a first frame plate (41) mounted on the conveying chassis (3). At both ends of the first frame plate (41), belt rollers (42) are rotatably provided. A driving belt (43) is sleeved between the two belt rollers (42) for driving connection. A wavy soft conveyor belt (44) is attached to the outer edge of the driving belt (43). One end of the belt roller (42) away from the first frame plate (41) is provided with a second frame plate (45) via the driving belt (43).

4. A lettuce root-removing harvester according to claim 1, characterized in that, The toggling member (63) includes a short shaft (631) provided on the inner wall of the toggle housing (11). A bushing (632) is rotatably sleeved on the short shaft (631). A first toggle arm (633) is integrally provided on the surface of the bushing (632). A first toggle shaft (634) is integrally provided at the end of the first toggle arm (633). The end of the connecting rod (64) away from the crankshaft disk (66) is in the shape of a square frame. The square frame at one end of the connecting rod (64) is sleeved on the first toggle shaft (634).

5. The lettuce root-removing harvester according to claim 4, characterized in that, A second toggle arm (635) is integrally provided on the bushing (632), and the second toggle arm (635) is arranged at a 90-degree angle with the first toggle arm (633). A strip groove (636) is vertically opened at the end of the second toggle arm (635) away from the bushing (632). A second toggle shaft (637) is provided inside the strip groove (636). The second toggle shaft (637) is mounted on the second strip cutter (62).

6. The root-removing harvester for asparagus lettuce according to claim 1, characterized in that, The guiding mechanism (53) includes a plurality of guiding rollers (531) rotatably provided on the first gathering frame (51) or the second gathering frame (52) through bearings. The top of the guiding roller (531) penetrates through the first gathering frame (51) or the second gathering frame (52) and is provided with a worm gear (532). A worm (533) is engaged with the outer edge of the worm gear (532). A first motor (534) is mounted at the end of the worm (533). The first motor (534) is mounted on the inner wall of the toggle housing (11).

7. A lettuce root-removing harvester according to claim 1, characterized in that, The gathering and conveying mechanism (54) includes a gathering roller (541) and a lifting roller (542) rotatably provided on the first gathering frame (51) through bearings. The top of the gathering roller (541) penetrates through the first gathering frame (51) and is provided with a first pulley (543). The top of the lifting roller (542) penetrates through the first gathering frame (51) and is provided with a second motor (545). The second motor (545) is mounted on the inner wall of the toggle housing (11). A second pulley (544) is sleeved on the lifting roller (542). The first pulley (543) and the second pulley (544) are connected by a sleeved belt for driving connection.

8. The lettuce root-removing harvester according to claim 7, wherein, The lifting roller (542) includes a roller body (5421). Annularly distributed convex ribs (5422) are integrally provided on the outer edge of the roller body (5421). Threaded grooves (5423) are formed in a threaded shape on the outer edge of the convex ribs (5422).

9. The lettuce root-removing harvester according to claim 1, characterized in that, The conveying mechanism (8) includes two conveying rollers (81) longitudinally and rotatably arranged inside the buffer mechanism (7). The axis core of one of the conveying rollers (81) penetrates through the buffer mechanism (7) and a right-angle motor (83) is installed on its back. A flexible belt (82) is sleeved on the two conveying rollers (81) in a driving manner, and a dialing pad (84) is integrally arranged on the outer edge of the flexible belt (82).

10. The lettuce root-removing harvester according to claim 1, characterized in that, A profiling pad (14) is installed at the bottom of the dialing shell (11), and the number and position of the profiling pads (14) correspond to the number and position of each column of guiding mechanisms (53) respectively.

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