Vegetable under-soil root cutting equipment and cutting device

Abstract

The utility model discloses a vegetable under-soil root cutting device and a cutting device. The vegetable under-soil root cutting device comprises a machine frame, a cutting device and a cutting device, the rotating wheels are arranged on the two sides of the rack or below the rack; the cutting device comprises a cutting operation mechanism and a cutting transmission mechanism, the cutting transmission mechanism is fixed below the rack through a height adjusting device, and the cutting operation mechanism is fixed at the front end of the cutting transmission mechanism and protrudes out of the front end of the rack; the power device is connected with the rear end of the cutting transmission mechanism and provides power for the cutting transmission mechanism; and the control device is connected with the power device to control the power output of the power device. The cutting depth can be adjusted in rows.

Description

Technical Field

[0001] The utility model relates to mechanized vegetable harvesting equipment, in particular to mechanized vegetable root cutting equipment under the soil and a cutting device. Background Art

[0002] my country is the country with the largest spinach production in the world. Spinach is rich in nutrients and is a common leafy vegetable on the table, but currently spinach is mainly harvested manually, so promoting mechanized harvesting is of great significance. Spinach is usually harvested with roots, so it is necessary to cut the roots under the soil. The existing underground cutting components for leafy vegetables mainly use the entire serrated knife to move back and forth horizontally into the soil to cut off the roots, thereby achieving overall cutting within the width of the vegetables on the ridge, but this method cannot adjust the cutting depth by row. During operation, the serrated knife is prone to tilt with the whole machine, and there is a cumulative deviation in the cutting depth on both sides, resulting in poor consistency in root cutting and damage to the vegetables. In order to avoid the above technical problems, it is indeed necessary to develop a new type of underground cutting component with adjustable cutting depth by row. Utility Model Content

[0003] The utility model aims to provide a vegetable root cutting device under the soil and a cutting apparatus, which can adjust the cutting depth row by row.

[0004] To achieve the above-mentioned purpose, the utility model provides a cutting device installed on a vegetable root cutting device under the soil, the vegetable root cutting device under the soil includes a frame, and the cutting device includes: a cutting operation mechanism; and a cutting transmission mechanism, the cutting transmission mechanism is arranged under the frame through a height adjustment device, and the cutting operation mechanism is arranged at the front end of the cutting transmission mechanism and protrudes from the front end of the frame.

[0005] Among them, the height adjustment device includes a first support frame, a connecting plate and a plurality of adjustment fasteners. The first support frame is connected to the lower front end of the frame. One end of the plurality of adjustment fasteners is symmetrically connected to the connecting plate, and the other end passes through the two ends of the first support frame and is fixed.

[0006] The cutting mechanism is a shovel-type cutting piece, which includes two cutting blades and a blade fixing plate. The two cutting blades are fixed on the front end of the blade fixing plate and form a V-shaped angle.

[0007] The thickness of the shovel-type cutting piece is 4 to 6 mm, the angle of the V-shaped angle is 110 to 130 degrees, the front and rear edges of the cutting blade are chamfered at 55 to 65 degrees and are rounded, and the surface of the blade fixing plate has a drag-reducing coating.

[0008] Among them, the cutting transmission mechanism is a front-to-back reciprocating transmission mechanism, including an eccentric crank and a horizontal limit transmission frame. The cutting operation mechanism is arranged at the front end of the horizontal limit transmission frame, the rear end of the horizontal limit transmission frame is connected to the front end of the eccentric crank, and the rear end of the eccentric crank is connected to the power device of the vegetable root cutting equipment under the soil.

[0009] Among them, the cutting transmission mechanism includes a driving shaft, an eccentric structure, a driving rod, an upper connecting rod, a lower bending rod and multiple connecting rods. The driving shaft is connected to the power device of the vegetable soil root cutting equipment, the upper connecting rod is connected to the height adjustment device, the lower bending rod includes a lower bending rod horizontal section and a lower bending rod inclined section, the two ends of the lower bending rod horizontal section are rotatably connected to one end of the multiple connecting rods, the two ends of the upper connecting rod are rotatably connected to the other end of the multiple connecting rods, the end of the lower bending rod inclined section away from the horizontal section of the lower bending rod is connected to the cutting operation mechanism, one end of the driving rod is rotatably connected to the driving shaft through the eccentric structure, and the other end of the driving rod is rotatably connected to the end of the lower bending rod horizontal section away from the inclined section of the lower bending rod.

[0010] Among them, the two ends of the connecting rod have symmetrical circular holes, and the two ends of the upper connecting rod and the two ends of the horizontal section of the lower bending rod are respectively provided with a sleeve, and the sleeve is a circular steel pipe, and two cylindrical cavities are symmetrically arranged at the two ends of its inner wall. A needle bearing is accommodated in each of the cylindrical cavities, and a rotating shaft passes through the circular hole of the connecting rod and the sleeve to realize the rotating connection between the connecting rod and the upper connecting rod and between the connecting rod and the horizontal section of the lower bending rod.

[0011] There is at least one circular hole in the middle of the connecting rod, and the circular hole in the middle of the connecting rod can replace the circular holes at both ends of the connecting rod to serve as a connection point with the sleeve.

[0012] Among them, the driving rod is a flat rectangular rod, one end of which is a circular ring and the other end is a circular hole. One end of the circular ring of the driving rod is dynamically connected to the driving shaft by being sleeved on the eccentric structure, and one end of the circular hole of the driving rod is sleeved on the sleeve at one end of the horizontal section of the lower bending rod away from the inclined section of the lower bending rod through a shaft sleeve.

[0013] Among them, the eccentric structure includes an outer eccentric block, an inner eccentric block and a deep groove ball bearing. The outer side of the inner eccentric block has a circular steel pipe portion for the drive shaft to be inserted and fixed therein. The inner side of the outer eccentric block and the inner side of the inner eccentric block are interlocked with each other to form an eccentric linear axis structure. The deep groove ball bearing is sleeved on the eccentric shaft of the eccentric linear axis structure. One end of the drive rod is sleeved on the eccentric structure by being sleeved on the deep groove ball bearing to obtain power from the drive shaft.

[0014] Among them, the outer eccentric block and the inner eccentric block are eccentric disks with four steps, wherein the first, second and third steps are full circles, the fourth step is a semicircle, the high-level steps are stacked on the low-level steps in sequence, the fourth steps of the outer eccentric block and the inner eccentric block are in opposite directions and can be interlocked with each other, the eccentric shaft is a cylinder formed by the fourth step and the third step after interlocking, and the outer diameter of the cylinder matches the inner diameter of the deep groove ball bearing.

[0015] Among them, the first step of the outer eccentric block and the inner eccentric block is 2-4mm high, the second step is 0.4-0.6mm high, the third step is 2-3mm high, and the fourth step is 2-4mm high. The center of the outer eccentric block and the inner eccentric block has a through hole with a diameter of 5.5-7.5mm for fixing the drive shaft, and a through hole with a diameter of 4.5-6.5mm is provided 16-18mm away from the center for fixing the outer eccentric block and the inner eccentric block to each other.

[0016] To achieve the above-mentioned purpose, the utility model also provides a vegetable root cutting device under the soil, including: a frame; a plurality of rotating wheels, arranged on both sides or below the frame; at least one cutting device as described above; a power device, connected to the cutting transmission mechanism; and a control device, connected to the power device to control its power output.

[0017] The cutting device is symmetrically arranged on the left and right sides of the frame.

[0018] The frame includes a front frame, a rear axle and an armrest frame, the cutting device is connected to the lower part of the front section of the front frame, the front end of the rear axle is connected to the rear end of the front frame, and the armrest frame is connected to the rear end of the rear axle.

[0019] The multiple rotating wheels include two driving wheels and a driven wheel. The two driving wheels are respectively arranged on both sides of the rear axle, and the driven wheel is arranged below the front frame.

[0020] A second supporting frame is arranged below the front frame, and the driven wheel has a driven wheel fixing frame. The driven wheel is connected to the bottom of the front frame by connecting the driven wheel fixing frame to the second supporting frame.

[0021] The power device includes a motor, a reducer and a battery box. The motor and the reducer are arranged below the middle of the frame, and the battery box is arranged above the frame. The motor is connected to the cutting transmission mechanism through the reducer, and the battery box is connected to the motor.

[0022] The control device includes a control box, which is arranged above the frame and connected to the battery box.

[0023] In order to solve the problems existing in the current vegetable root cutting process equipment, the utility model provides a vegetable root cutting equipment and cutting device under the soil, which has the following significant technical advantages compared with the prior art:

[0024] 1) The cutting mechanism of the utility model (taking the shovel-type cutting blade as an example) has a motion trajectory that is a slightly concave parabola, not a horizontal straight line. When working, the cutting mechanism moves back and forth under the soil surface using a slightly concave parabola as a motion path, and uses the sliding cutting principle to cut off the roots of vegetables (such as spinach). This parabola is divided into a cutting stage and a loosening stage. During the cutting stage, the cutting mechanism cuts the soil at a certain angle of entry, and then the angle of entry gradually decreases to approach zero, cutting off the roots of spinach. Then the blade slowly points upward to loosen the surface soil, making it easier for the subsequent vegetable harvesting operations.

[0025] 2) The existing technology for cutting leafy vegetables with roots (such as spinach) has problems such as uneven harvesting surface, inconsistent soil firmness, and limited space in facilities. The utility model is compact and convenient, suitable for working environments with limited space such as facilities, and can adjust the cutting depth according to the height of the ground, adjust the cutting amplitude of the cutting operation mechanism according to the firmness of the soil, and adjust the motor speed to change the cutting frequency, so as to reasonably cope with different working conditions.

[0026] 3) The utility model is suitable for leafy vegetables (such as spinach) that need to be harvested with roots, which can reduce the input cost of manual harvesting and improve the harvesting efficiency.

[0027] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0029] Figure 1 This is a schematic diagram of the structure of a vegetable root cutting device provided by an embodiment of the utility model;

[0030] Figure 2 It is a schematic diagram of the structure of a cutting device provided by an embodiment of the utility model;

[0031] Figure 3 It is a schematic diagram of the structure of a height adjustment device provided by an embodiment of the utility model;

[0032] Figure 4A This is a schematic diagram of the installation of a sleeve provided in one embodiment of the utility model;

[0033] Figure 4B for Figure 4A Schematic diagram of the cross section of section AA;

[0034] Figure 5A This is a schematic diagram of the structure of the inner eccentric block provided by one embodiment of the utility model;

[0035] Figure 5B This is a schematic diagram of the structure of an external eccentric block provided by an embodiment of the utility model;

[0036] Figure 6 This is a schematic diagram of the installation of the eccentric structure provided by an embodiment of the utility model;

[0037] Wherein, the reference numerals are:

[0038] 1: Rack

[0039] 11: Front rack

[0040] 12: Rear axle

[0041] 13: Handrail

[0042] 2: Wheel

[0043] 21: Driving wheel

[0044] 22: Driven wheel

[0045] 221: Second support frame

[0046] 222: Driven wheel fixing bracket

[0047] 31: Motor

[0048] 32: Reducer

[0049] 33: Battery box

[0050] 34: Control box

[0051] 4: Height adjustment device

[0052] 41: First support frame

[0053] 42: Connecting plate

[0054] 43: Adjustment fasteners

[0055] 5: Cutting device

[0056] 51: Cutting operation mechanism

[0057] 511: Cutting blade

[0058] 512: Blade fixing plate

[0059] 52: Cutting transmission mechanism

[0060] 521: Drive shaft

[0061] 522: Eccentric structure

[0062] 5221: External eccentric block

[0063] 5222: Internal eccentric block

[0064] 5222a: Round steel pipe

[0065] 5223: Deep groove ball bearing

[0066] 523: Driving rod

[0067] 524: Upper connecting rod

[0068] 525: Downward Bend

[0069] 5251: Horizontal section of lower curved rod

[0070] 5252: Lower curved rod inclined section

[0071] 5253: Connecting plate

[0072] 526: Connecting rod

[0073] 527: Sleeve

[0074] 5271: Needle roller bearing

[0075] 528: Shaft

[0076] 529: Bushing DETAILED DESCRIPTION

[0077] In order to clearly explain the technical features of the present invention so that those skilled in the art can clearly understand the structure, features, usage and technical effects of the present invention, the present invention is described below through specific implementation methods and in conjunction with the accompanying drawings. However, the following is only for illustrative purposes and is not intended to limit the present invention.

[0078] Please refer to Figure 1 to Figure 3 . Figure 1 This is a schematic diagram of the structure of a vegetable root cutting device provided by an embodiment of the utility model; Figure 2 It is a schematic diagram of the structure of a cutting device provided by an embodiment of the utility model; Figure 3 It is a structural schematic diagram of a height adjustment device provided in one embodiment of the utility model.

[0079] The utility model provides a vegetable root cutting device under the soil, comprising: a frame 1; a plurality of rotating wheels 2, which are arranged on both sides or below the frame 1; at least one cutting device 5, each of which comprises a cutting operation mechanism 51 and a cutting transmission mechanism 52, the cutting transmission mechanism 52 is fixed below the frame 1 through a height adjustment device 4, the cutting operation mechanism 51 is fixed to the front end of the cutting transmission mechanism 52 and protrudes from the front end of the frame 1; a power device, which is connected to the rear end of the cutting transmission mechanism 52 and provides power for the cutting transmission mechanism 52; and a control device, which is connected to the power device to control its power output.

[0080] The frame 1 includes a front frame 11, a rear bridge 12 and an armrest 13. The cutting device 5 is fixed below the front section of the front frame 11. The front end of the rear bridge 12 is connected to the rear end of the front frame 12, and the armrest 13 is connected to the rear end of the rear bridge 12.

[0081] The plurality of wheels 2 include two driving wheels 21 and a driven wheel 22 . The two driving wheels 21 are respectively disposed on both sides of the rear axle 12 , and the driven wheel 22 is disposed below the front frame 11 .

[0082] A second support frame 221 is fixed below the front frame 11, and the driven wheel 22 has a driven wheel fixing frame 222. The driven wheel 22 is fixed below the front frame 11 by fixing the driven wheel fixing frame 222 to the second support frame 221. The second support frame 221 and the front frame 11, and the driven wheel fixing frame 222 and the second support frame 221 are fixed by bolts.

[0083] The power device includes a motor 31, a reducer 32 and a battery box 33. The motor 31 and the reducer 32 are arranged at the lower middle part of the frame 1, and the battery box 33 is arranged above the frame 1. The motor 31 is connected to the cutting transmission mechanism 52 through the reducer 32, and the battery box 33 is connected to the motor 31.

[0084] The control device includes a control box 34 . The control box 34 is disposed above the frame 1 . The control box 34 is connected to the battery box 33 .

[0085] Please refer to Figure 3 The height adjustment device 4 includes a first support frame 41, a connecting plate 42 and a plurality of adjusting fasteners 43. The first support frame 41 is fixed to the lower front end of the frame 1. One end of the plurality of adjusting fasteners 43 is symmetrically fixed to the connecting plate 42, and the other end passes through the two ends of the first support frame 41 and is fixed to the outer sides of the upper and lower through holes with fastening nuts. The first support frame 41 can be a rectangular steel pipe, and the adjusting fasteners 43 can be adjusting bolts.

[0086] The first support frame 41 is provided with a plurality of symmetrical fixing holes at both ends, through which bolts are passed to fix it to the frame 1. A plurality of symmetrical adjustment holes are further provided outside the symmetrical fixing holes, through which adjustment fasteners 43 are passed and fixed up and down with fastening nuts. Thus, the height of the cutting device 5 is fixed by fixing the height of the connecting plate 42 of the height adjustment device 4, and the height of the connecting plate 42 can be adjusted up and down by adjusting the fasteners 43, thereby adjusting the height of the cutting device 5.

[0087] The cutting devices 5 are symmetrically arranged on the left and right sides of the frame 1. Each of the cutting devices 5 can adjust the cutting depth and cutting width individually.

[0088] Please refer to Figure 2 . The cutting mechanism 51 is a shovel-type cutting piece, which includes two cutting blades 511 and a blade fixing plate 512. The two cutting blades 511 are fixed to the front end of the blade fixing plate 512 and form a V-shaped angle. The thickness of the shovel-type cutting piece is 4 to 6 mm, and the angle of the V-shaped angle is 110 to 130°. The front and rear edges of each cutting blade 511 have a 55 to 65° chamfer and are rounded, and the surface of the blade fixing plate 512 has a drag-reducing coating. The shovel-type cutting piece can be a scraper.

[0089] The blade fixing plate 512 can increase the strength of the shovel-type cutting piece and serve as a connection point between the cutting operation mechanism 51 and the cutting transmission mechanism 52. For example, a plurality of fixing holes are symmetrically arranged at the rear of the blade fixing plate 512, and the lower bending rod 525 of the cutting transmission mechanism 52 can be fixedly connected to the shovel-type cutting piece by bolts. The drag-reducing coating of the blade fixing plate 512 can reduce the friction resistance with the soil and reduce the power consumption of the machine. Preferably, the thickness of the shovel-type cutting piece is 5 mm, the angle of the V-shaped angle is 120°, and each of the cutting blades 511 has a 60° chamfer at the front and rear ends.

[0090] The cutting transmission mechanism 52 is a reciprocating transmission mechanism, including an eccentric crank and a horizontal limit transmission frame. The cutting operation mechanism 51 is arranged at the front end of the horizontal limit transmission frame, the rear end of the horizontal limit transmission frame is connected to the front end of the eccentric crank, and the rear end of the eccentric crank is connected to the power device of the vegetable root cutting equipment under the soil.

[0091] In one embodiment, the cutting transmission mechanism 52 includes a driving shaft 521, an eccentric structure 522, a driving rod 523, an upper connecting rod 524, a lower bending rod 525 and a plurality of connecting rods 526. The eccentric crank includes the driving shaft 521, the eccentric structure 522 and the driving rod 523, and the horizontal limit transmission frame includes the upper connecting rod 524, the lower bending rod 525 and the plurality of connecting rods 526.

[0092] The driving shaft 521 is connected to the power device, the upper connecting rod 524 is fixed to the height adjustment device 4, the lower bending rod 525 includes a lower bending rod horizontal section 5251 and a lower bending rod inclined section 5252, the two ends of the lower bending rod horizontal section 5251 are rotatably connected to one end of the multiple connecting rods 526, the two ends of the upper connecting rod 524 are rotatably connected to the other end of the multiple connecting rods 526, the end of the lower bending rod inclined section 5252 away from the lower bending rod horizontal section 5251 is connected to the cutting operation mechanism 51, one end of the driving rod 523 is rotatably connected to the driving shaft 521 through the eccentric structure 522, and the other end of the driving rod 523 is rotatably connected to the end of the lower bending rod horizontal section 5251 away from the lower bending rod inclined section 5252.

[0093] The upper connecting rod, the multiple connecting rods, and the horizontal section of the lower curved rod form a planar four-bar structure; the upper connecting rod 524 is fixed to the connecting plate 42 of the height adjustment device, and a notch is provided in the middle of the upper connecting rod 524 so that it can be fixed to the two ends of the connecting plate 42 by bolts; a connecting plate 5253 is welded to the end of the inclined section 5252 of the lower curved rod away from the horizontal section 5251 of the lower curved rod, and the connecting plate 5253 is fixed to the blade fixing plate 512 of the shovel-type cutting piece by bolts to connect the shovel-type cutting piece to the lower curved rod 525; both ends of the drive shaft 521 have keyways, and one end has a threaded hole, and the end with the threaded hole is connected to the eccentric structure 522 by a hexagon socket screw, and the drive shaft 521 is fixedly connected to the output shaft of the reducer 32 of the power device by a flange coupling to transmit power.

[0094] Please refer to Figure 4A and Figure 4B . Figure 4A This is a schematic diagram of the installation of a sleeve provided in one embodiment of the utility model; Figure 4B for Figure 4A Schematic diagram of the cross section of section AA.

[0095] The two ends of the connecting rod 526 have symmetrical circular holes, and the two ends of the upper connecting rod 524 and the two ends of the lower bending rod horizontal section 5251 are respectively provided with a sleeve 527. The sleeve 527 is a circular steel pipe, and two cylindrical cavities are symmetrically arranged at the two ends of its inner wall. A needle bearing 5271 is accommodated in each of the cylindrical cavities. A rotating shaft 528 penetrates and fixes the circular hole of the connecting rod 526 and the sleeve 527, so as to realize the rotational connection between the connecting rod 526 and the upper connecting rod 524 and between the connecting rod 526 and the lower bending rod horizontal section 5251.

[0096] The outer wall of the sleeve 527 has a retaining ring groove, and the middle part of the inner wall of the sleeve 527 has a protrusion, which can limit the axial movement of the needle bearing 5271. The hexagon socket screw is used as the rotating shaft 528 to sequentially penetrate the round hole of the connecting rod 526, the gasket, and the sleeve 527 (through the needle bearing 5271 inside the sleeve 527), and then fixed with a locking nut.

[0097] The middle portion of the connecting rod 526 has at least one circular hole. The circular hole in the middle portion of the connecting rod 526 can replace the circular holes at both ends of the connecting rod 526 and serve as a connection point with the sleeve 527 .

[0098] The driving rod 523 is a flat rectangular rod with a circular ring at one end and a circular hole at the other end. The circular ring end of the driving rod 523 is dynamically connected to the driving shaft 521 by being sleeved on the eccentric structure 522, and the circular hole end of the driving rod 523 is sleeved and fixed on the sleeve 527 at one end of the horizontal section 5251 of the lower bending rod away from the inclined section 5252 of the lower bending rod through a sleeve 529.

[0099] During the operation of the device, the driving shaft 521 transmits power to the eccentric structure 522, and the eccentric structure 522 transmits the power to the driving rod 523 through the deep groove ball bearing 5223. Since the upper connecting rod 524 is fixedly connected to the connecting plate 42, the driving rod 523 pushes the sleeve 527 through the shaft sleeve 529, driving the connecting rod 526 and the lower curved rod 525 to swing. The shaft sleeve 529 of the driving rod 523 can be selected to be concentric with the middle circular hole or the circular holes at both ends of the connecting rod 526, so as to adjust the movement range of the lower curved rod 525 forward and backward and upward and downward, thereby changing the cutting range of the shovel-type cutting piece.

[0100] Please refer to Figure 5A , Figure 5B and Figure 6 . Figure 5A This is a schematic diagram of the structure of the inner eccentric block provided by one embodiment of the utility model; Figure 5B This is a schematic diagram of the structure of an external eccentric block provided by an embodiment of the utility model; Figure 6 It is a schematic diagram of the installation of an eccentric structure provided by an embodiment of the utility model.

[0101] The eccentric structure 522 includes an outer eccentric block 5221, an inner eccentric block 5222 and a deep groove ball bearing 5223. The outer side of the inner eccentric block 5222 has a circular steel tube portion 5222a for the drive shaft 521 to be inserted and fixed therein. The inner side of the outer eccentric block 5221 and the inner side of the inner eccentric block 5222 are interlocked with each other to form an eccentric linear axis structure. The deep groove ball bearing 5223 is sleeved on the eccentric shaft of the eccentric linear axis structure. One end of the drive rod 523 is sleeved on the eccentric structure 522 by being sleeved on the deep groove ball bearing 5223 to obtain power from the drive shaft 521.

[0102] The outer eccentric block 5221 and the inner eccentric block 5222 are eccentric disks with four steps, wherein the first, second and third steps are full circles, and the fourth step is a semicircle, and the higher steps are stacked on the lower steps in sequence. The fourth steps of the outer eccentric block 5221 and the inner eccentric block 5222 face opposite directions and can be interlocked with each other. The eccentric shaft is a cylinder formed by the fourth step and the third step after interlocking, and the outer diameter of the cylinder matches the inner diameter of the deep groove ball bearing 5223.

[0103] The first step of the outer eccentric block 5221 and the inner eccentric block 5222 is 2-4 mm high, the second step is 0.4-0.6 mm high, the third step is 2-3 mm high, and the fourth step is 2-4 mm high. The center of the outer eccentric block 5221 and the inner eccentric block 5222 has a through hole with a diameter of 5.5-7.5 mm for fixing the drive shaft 521, and a through hole with a diameter of 4.5-6.5 mm is provided 16-18 mm away from the center for fixing the outer eccentric block 5221 and the inner eccentric block 5222 to each other.

[0104] One end of the circular steel tube portion 5222a has a keyway, and the outer side of the inner eccentric block 5222 has an annular groove, which is convenient for concentric assembly with the circular steel tube portion 5222a. The second step of the outer eccentric block 5221 and the inner eccentric block 5222 contacts the inner ring of the deep groove ball bearing 5223 to limit its axial movement. Preferably, the first step of the outer eccentric block 5221 and the inner eccentric block 5222 is 3mm high, the second step is 0.5mm high, the third step is 2.5mm high, and the fourth step is 3mm high. The center of the outer eccentric block 5221 and the inner eccentric block 5222 has a through hole with a diameter of 6.5mm for screws to pass through, and the two eccentric blocks are fixed to one end of the drive shaft 521. A through hole with a diameter of 5.5 mm is provided 17 mm away from the center of the outer eccentric block 5221 and the inner eccentric block 5222 for screws to pass through and be locked at the ends with nuts so that the two eccentric blocks are fixed to each other.

[0105] Please refer to Figure 2 to Figure 6 The utility model also provides a cutting device, which is installed on a vegetable root cutting device under the soil. The vegetable root cutting device under the soil includes a frame. The cutting device includes: a cutting operation mechanism 51; and a cutting transmission mechanism 52. The cutting transmission mechanism 52 is fixed under the frame 1 through a height adjustment device 4. The cutting operation mechanism 51 is fixed to the front end of the cutting transmission mechanism 52 and protrudes from the front end of the frame 1.

[0106] The height adjustment device 4 includes a first support frame 41, a connecting plate 42 and a plurality of adjusting fasteners 43. The first support frame 41 is fixed below the front end of the frame 1. One end of the plurality of adjusting fasteners 43 is symmetrically fixed to the connecting plate 42, and the other end passes through both ends of the first support frame 41 and is fixed outside the upper and lower through holes with fastening nuts. The first support frame 41 is a rectangular steel pipe, and the adjusting fasteners 43 are adjusting bolts.

[0107] The cutting mechanism 51 is a shovel-type cutting member, which includes two cutting blades 511 and a blade fixing plate 512. The two cutting blades 511 are fixed to the front end of the blade fixing plate 512 and form a V-shaped angle. The thickness of the shovel-type cutting member is 4 to 6 mm, and the angle of the V-shaped angle is 110 to 130 degrees. The front and rear edges of each cutting blade 511 are chamfered at 55 to 65 degrees and are rounded. The surface of the blade fixing plate 512 has a drag-reducing coating. The shovel-type cutting member can be a scraper.

[0108] The cutting transmission mechanism 52 is a forward and backward reciprocating transmission mechanism, including an eccentric crank and a horizontal limit transmission frame. The cutting operation mechanism 51 is arranged at the front end of the horizontal limit transmission frame, the rear end of the horizontal limit transmission frame is connected to the front end of the eccentric crank, and the rear end of the eccentric crank is connected to the power device of the vegetable root cutting equipment under the soil.

[0109] In one embodiment, the cutting transmission mechanism 52 includes a driving shaft 521, an eccentric structure 522, a driving rod 523, an upper connecting rod 524, a lower bending rod 525 and a plurality of connecting rods 526. The eccentric crank includes the driving shaft 521, the eccentric structure 522 and the driving rod 523, and the horizontal limit transmission frame includes the upper connecting rod 524, the lower bending rod 525 and the plurality of connecting rods 526.

[0110] The driving shaft 521 is connected to the power device of the vegetable soil root cutting equipment, the upper connecting rod 524 is fixed to the height adjustment device 4, the lower bending rod 525 includes a lower bending rod horizontal section 5251 and a lower bending rod inclined section 5252, the two ends of the lower bending rod horizontal section 5251 are rotatably connected to one end of the multiple connecting rods 526, the two ends of the upper connecting rod 524 are rotatably connected to the other end of the multiple connecting rods 526, the end of the lower bending rod inclined section 5252 away from the lower bending rod horizontal section 5251 is connected to the cutting operation mechanism 51, one end of the driving rod 523 is rotatably connected to the driving shaft 521 through the eccentric structure 522, and the other end of the driving rod 523 is rotatably connected to the end of the lower bending rod horizontal section 5251 away from the lower bending rod inclined section 5252.

[0111] The two ends of the connecting rod 526 have symmetrical circular holes, and the two ends of the upper connecting rod 524 and the two ends of the lower bending rod horizontal section 5251 are respectively provided with a sleeve 527. The sleeve 527 is a circular steel pipe, and two cylindrical cavities are symmetrically arranged at the two ends of its inner wall. A needle bearing 5271 is accommodated in each of the cylindrical cavities. A rotating shaft 528 penetrates and fixes the circular hole of the connecting rod 526 and the sleeve 527, so as to realize the rotational connection between the connecting rod 526 and the upper connecting rod 524 and between the connecting rod 526 and the lower bending rod horizontal section 5251.

[0112] The middle portion of the connecting rod 526 has at least one circular hole. The circular hole in the middle portion of the connecting rod 526 can replace the circular holes at both ends of the connecting rod 526 and serve as a connection point with the sleeve 527 .

[0113] The driving rod 523 is a flat rectangular rod with a circular ring at one end and a circular hole at the other end. The circular ring end of the driving rod 523 is dynamically connected to the driving shaft 521 by being sleeved on the eccentric structure 522, and the circular hole end of the driving rod 523 is sleeved and fixed on the sleeve 527 at one end of the horizontal section 5251 of the lower bending rod away from the inclined section 5252 of the lower bending rod through a sleeve 529.

[0114] The eccentric structure 522 includes an outer eccentric block 5221, an inner eccentric block 5222 and a deep groove ball bearing 5223. The outer side of the inner eccentric block 5222 has a circular steel tube portion 5222a for the drive shaft 521 to be inserted and fixed therein. The inner side of the outer eccentric block 5221 and the inner side of the inner eccentric block 5222 are interlocked with each other to form an eccentric linear axis structure. The deep groove ball bearing 5223 is sleeved on the eccentric shaft of the eccentric linear axis structure. One end of the drive rod 523 is sleeved on the eccentric structure 522 by being sleeved on the deep groove ball bearing 5223 to obtain power from the drive shaft 521.

[0115] The outer eccentric block 5221 and the inner eccentric block 5222 are eccentric disks with four steps, wherein the first, second and third steps are full circles, and the fourth step is a semicircle, and the higher steps are stacked on the lower steps in sequence. The fourth steps of the outer eccentric block 5221 and the inner eccentric block 5222 face opposite directions and can be interlocked with each other. The eccentric shaft is a cylinder formed by the fourth step and the third step after interlocking, and the outer diameter of the cylinder matches the inner diameter of the deep groove ball bearing 5223.

[0116] The first step of the outer eccentric block 5221 and the inner eccentric block 5222 is 2-4 mm high, the second step is 0.4-0.6 mm high, the third step is 2-3 mm high, and the fourth step is 2-4 mm high. The center of the outer eccentric block 5221 and the inner eccentric block 5222 has a through hole with a diameter of 5.5-7.5 mm for fixing the drive shaft 521, and a through hole with a diameter of 4.5-6.5 mm is provided 16-18 mm away from the center for fixing the outer eccentric block 5221 and the inner eccentric block 5222 to each other.

[0117] In order to solve the problems existing in the current vegetable root cutting process equipment, the utility model provides a vegetable root cutting equipment and cutting device under the soil, which has the following significant technical advantages compared with the prior art:

[0118] 1) The cutting mechanism of the utility model (taking the shovel-type cutting blade as an example) has a motion trajectory that is a slightly concave parabola, not a horizontal straight line. When working, the cutting mechanism moves back and forth under the soil surface using a slightly concave parabola as a motion path, and uses the sliding cutting principle to cut off the roots of vegetables (such as spinach). This parabola is divided into a cutting stage and a loosening stage. During the cutting stage, the cutting mechanism cuts the soil at a certain angle of entry, and then the angle of entry gradually decreases to approach zero, cutting off the roots of spinach. Then the blade slowly points upward to loosen the surface soil, making it easier for the subsequent vegetable harvesting operations.

[0119] 2) The existing technology for cutting leafy vegetables with roots (such as spinach) has problems such as uneven harvesting surface, inconsistent soil firmness, and limited space in facilities. The utility model is compact and convenient, suitable for working environments with limited space such as facilities, and can adjust the cutting depth according to the height of the ground, adjust the cutting amplitude of the cutting operation mechanism according to the firmness of the soil, and adjust the motor speed to change the cutting frequency, so as to reasonably cope with different working conditions.

[0120] 3) The utility model is suitable for leafy vegetables (such as spinach) that need to be harvested with roots, which can reduce the input cost of manual harvesting and improve the harvesting efficiency.

[0121] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims of the present invention.

Claims

1. A cutting device, installed on a vegetable root cutting device under the soil, the vegetable root cutting device under the soil comprises a frame, characterized in that: The cutting device comprises: a cutting mechanism; and A cutting transmission mechanism is arranged below the frame through a height adjustment device, and the cutting operation mechanism is arranged at the front end of the cutting transmission mechanism and protrudes from the front end of the frame.

2. The cutting device according to claim 1, characterized in that The height adjustment device includes a first support frame, a connecting plate and a plurality of adjusting fasteners. The first support frame is connected to the lower front end of the frame. One end of the plurality of adjusting fasteners is symmetrically connected to the connecting plate, and the other end passes through the two ends of the first support frame and is fixed.

3. The cutting device according to claim 1, characterized in that: The cutting operation mechanism is a shovel-type cutting piece, which includes two cutting blades and a blade fixing plate. The two cutting blades are fixed on the front end of the blade fixing plate and form a V-shaped angle.

4. The cutting device according to claim 3, characterized in that: The thickness of the shovel-type cutting piece is 4-6 mm, the angle of the V-shaped angle is 110-130 degrees, the front and rear edges of the cutting blade are chamfered at 55-65 degrees and are rounded, and the surface of the blade fixing plate has a drag-reducing coating.

5. The cutting device according to claim 1, characterized in that: The cutting transmission mechanism is a forward and backward reciprocating transmission mechanism, including an eccentric crank and a horizontal limit transmission frame. The cutting operation mechanism is arranged at the front end of the horizontal limit transmission frame, the rear end of the horizontal limit transmission frame is connected to the front end of the eccentric crank, and the rear end of the eccentric crank is connected to the power device of the vegetable soil root cutting equipment.

6. The cutting device according to claim 1, characterized in that: The cutting transmission mechanism includes a driving shaft, an eccentric structure, a driving rod, an upper connecting rod, a lower bending rod and multiple connecting rods. The driving shaft is connected to the power device of the vegetable soil root cutting equipment, the upper connecting rod is connected to the height adjustment device, the lower bending rod includes a lower bending rod horizontal section and a lower bending rod inclined section, the two ends of the lower bending rod horizontal section are rotatably connected to one end of the multiple connecting rods, the two ends of the upper connecting rod are rotatably connected to the other end of the multiple connecting rods, the end of the lower bending rod inclined section away from the horizontal section of the lower bending rod is connected to the cutting operation mechanism, one end of the driving rod is rotatably connected to the driving shaft through the eccentric structure, and the other end of the driving rod is rotatably connected to the end of the lower bending rod horizontal section away from the inclined section of the lower bending rod.

7. The cutting device according to claim 6, characterized in that The two ends of the connecting rod have symmetrical circular holes, and the two ends of the upper connecting rod and the two ends of the horizontal section of the lower bending rod are respectively provided with a sleeve, and the sleeve is a circular steel pipe, and two cylindrical cavities are symmetrically arranged at the two ends of its inner wall. A needle bearing is accommodated in each of the cylindrical cavities, and a rotating shaft passes through the circular hole of the connecting rod and the sleeve to realize the rotational connection between the connecting rod and the upper connecting rod and between the connecting rod and the horizontal section of the lower bending rod.

8. The cutting device according to claim 7, characterized in that The middle part of the connecting rod is provided with at least one circular hole, and the circular hole in the middle part of the connecting rod can replace the circular holes at both ends of the connecting rod to serve as a connection point with the sleeve.

9. The cutting device according to claim 7, characterized in that: The driving rod is a flat rectangular rod with a circular ring at one end and a circular hole at the other end. One end of the circular ring of the driving rod is dynamically connected to the driving shaft by being sleeved on the eccentric structure, and one end of the circular hole of the driving rod is sleeved on a sleeve at one end of the horizontal section of the lower bending rod away from the inclined section of the lower bending rod through a shaft sleeve.

10. The cutting device according to claim 6, characterized in that The eccentric structure includes an outer eccentric block, an inner eccentric block and a deep groove ball bearing. The outer side of the inner eccentric block has a circular steel pipe portion for the drive shaft to be inserted and fixed therein. The inner side of the outer eccentric block and the inner side of the inner eccentric block are interlocked with each other to form an eccentric linear axis structure. The deep groove ball bearing is sleeved on the eccentric shaft of the eccentric linear axis structure. One end of the drive rod is sleeved on the eccentric structure by being sleeved on the deep groove ball bearing to obtain power from the drive shaft.

11. The cutting device according to claim 10, characterized in that The outer eccentric block and the inner eccentric block are eccentric disks with four steps, wherein the first, second and third steps are full circles, the fourth step is a semicircle, and the higher steps are sequentially superimposed on the lower steps. The fourth steps of the outer eccentric block and the inner eccentric block face oppositely and can be interlocked with each other. The eccentric shaft is a cylinder formed by the fourth step and the third step after interlocking, and the outer diameter of the cylinder matches the inner diameter of the deep groove ball bearing.

12. The cutting device according to claim 11, characterized in that The first step of the outer eccentric block and the inner eccentric block is 2-4 mm high, the second step is 0.4-0.6 mm high, the third step is 2-3 mm high, and the fourth step is 2-4 mm high. The center of the outer eccentric block and the inner eccentric block has a through hole with a diameter of 5.5-7.5 mm for fixing the drive shaft, and a through hole with a diameter of 4.5-6.5 mm is provided 16-18 mm away from the center for fixing the outer eccentric block and the inner eccentric block to each other.

13. A vegetable root cutting device, characterized in that: include: One rack; A plurality of rotating wheels are arranged on both sides or below the frame; At least one cutting device according to any one of claims 1 to 12; a power device connected to the cutting transmission mechanism; and A control device is connected to the power device to control its power output.

14. The vegetable root cutting device according to claim 13, characterized in that: The cutting device is symmetrically arranged on the left and right sides of the frame.

15. The vegetable root cutting device according to claim 13, characterized in that: The frame comprises a front frame, a rear bridge and an armrest frame, the cutting device is connected to the lower part of the front section of the front frame, the front end of the rear bridge is connected to the rear end of the front frame, and the armrest frame is connected to the rear end of the rear bridge.

16. The vegetable root cutting device according to claim 15, characterized in that: The plurality of rotating wheels include two driving wheels and a driven wheel. The two driving wheels are respectively arranged on both sides of the rear axle, and the driven wheel is arranged below the front frame.

17. The vegetable root cutting device according to claim 16, characterized in that: A second supporting frame is arranged below the front frame, and the driven wheel has a driven wheel fixing frame. The driven wheel is connected to the bottom of the front frame by connecting the driven wheel fixing frame to the second supporting frame.

18. The vegetable root cutting device according to claim 13, characterized in that: The power device includes a motor, a reducer and a battery box. The motor and the reducer are arranged below the middle of the frame, and the battery box is arranged above the frame. The motor is connected to the cutting transmission mechanism through the reducer, and the battery box is connected to the motor.

19. The vegetable root cutting device according to claim 18, characterized in that: The control device comprises a control box, which is arranged above the frame and connected to the battery box.

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