Reciprocating direct insertion type bare seedling on-film transplanting device and method

Abstract

The invention discloses a reciprocating direct insertion type bare seedling on-film transplanting device and method, solves the problem of large film breaking area of an on-film transplanting mechanism in the prior art, and has the beneficial effect of effectively controlling the film breaking area, and the specific scheme is as follows: the reciprocating direct insertion type bare seedling on-film transplanting device comprises a rack assembly, the rack assembly comprises a power source and a device fixing piece, the power source is installed on the device fixing piece, the device fixing piece can be fixed to the transplanter, the driving end of the power source penetrates through the device fixing piece to be connected with a main rocker arm of the connecting rod assembly, and the device fixing piece, the main rocker arm, an auxiliary rocker arm and a transverse pull rod form the connecting rod assembly. The joint of the auxiliary rocker arm and the device fixing piece is lower than the joint of the main rocker arm and the device fixing piece, rotating power can be generated between the end, away from the device fixing piece, of the main rocker arm and the rack assembly, the transverse pull rod can horizontally move and rotate in a set plane, and a gear box assembly is arranged on the transverse pull rod.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a reciprocating direct-insertion bare seedling transplanting device and method. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Taking the transplanting of bare sweet potato seedlings on film as an example, at present, the work of transplanting sweet potato seedlings on film has gradually been replaced by automatic or semi-automatic machinery from traditional complex manual operations. This type of transplanting machinery is mainly clamp-type and chain-clamp-type. Due to the particularity of the principle of mechanized transplanting devices and the complex agronomic requirements of sweet potato transplanting, it is difficult to ensure the planting quality of potato seedlings when transplanting on film with clamp-type and chain-clamp-type devices. Due to the particularity of the structure of these two transplanting devices, the chain-clamp-type transplanting device needs to dig trenches on the ridges before transplanting, so it is impossible to realize the work of planting potato seedlings on film. The clamp-type has a smaller size of the part that enters the soil during the transplanting process, and can be used for transplanting on film to a certain extent.

[0004] In addition, the structural settings of the two transplanting devices are not reasonable enough, the stability is poor, and there is a problem of inaccurate cutting position during operation. Since the seedling clamping mechanisms on both sides need to frequently take and place the potato seedlings, it is easy to cause the opening of the transplanting film and the soil disturbance in the ridge to be too large. Excessive soil disturbance leads to poor soil covering effect and poor potato seedling planting effect. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a reciprocating direct-insertion bare seedling transplanting device on film, which has a simple structure and high reliability. It solves the problems of large film opening and poor soil backfilling effect on the basis of ensuring that the posture of the bare seedlings after transplanting meets the agronomic requirements.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0007] A reciprocating straight-insertion bare seedling transplanting device on film comprises a frame assembly, the frame assembly comprises a power source and a device fixing part, the power source is installed on the device fixing part, the device fixing part can be fixed to the transplanter, the driving end of the power source passes through the device fixing part and is connected with the main rocker arm of the connecting rod assembly, the device fixing part, the main rocker arm, the auxiliary rocker arm and the cross-tie rod form the connecting rod assembly, the connection part between the auxiliary rocker arm and the device fixing part is lower than the connection part between the main rocker arm and the device fixing part, the end of the main rocker arm away from the device fixing part can generate rotational power with the frame assembly, the cross-tie rod can realize translation and rotational movement within a set plane, a gear box assembly is arranged at the cross-tie rod, and a driving gear and a driven gear that mesh with each other are arranged inside the gear box assembly, the driving gear is connected to the main rocker arm, and the driven gear is connected to the reciprocating seedling insertion assembly, the main rocker arm drives the driving gear to rotate during the rotation process, and then drives the driven gear to rotate, driving the reciprocating seedling insertion assembly to realize reciprocating linear motion, and when the main rocker arm moves to a lower position, the reciprocating seedling insertion assembly extends to a longer state to realize seedling transplanting.

[0008] As described above, a reciprocating direct insertion type bare seedling transplanting device on film, the gear box assembly includes a gear box housing, the driving gear and the driven gear are arranged in the gear box housing, the driven gear cooperates with the reverse double helix reciprocating screw, one end of the reverse double helix reciprocating screw is passed through the gear box housing and a limiting component is arranged, the limiting component cooperates with the screw rotation limiting seat fixed to the gear box housing, and the other end of the reverse double helix reciprocating screw is arranged with a seedling insert.

[0009] In a reciprocating direct insertion bare seedling transplanting device as described above, the gear box housing comprises two halves, a first convex portion is arranged inside each half of the gear box housing, the outer side of the first convex portion supports the driven gear through a bearing so that the driven gear can rotate relative to the first convex portion, and the retaining spring is located at a position where the bearing is away from the other bearing.

[0010] As described above, a reciprocating direct-insertion bare seedling transplanting device is provided, wherein a second convex portion is arranged inside the gear box housing, and a height of the second convex portion is smaller than a height of the first convex portion, and the driving gear is located between the second convex portions on both sides, and an inner diameter of the second convex portion is larger than a diameter of a driven shaft hole of the gear box housing, and the driven shaft passes through the driving gear and is connected to the driving gear to drive the rotation of the driving gear, and the driven shaft is connected to the main rocker arm, and a bearing is arranged between the driven shaft and the second convex portion so that the driven gear can rotate relative to the second convex portion.

[0011] As described above, in a reciprocating direct insertion bare seedling transplanting device, the keyway of the driven gear is provided with a screw slider, the screw slider is connected to the reverse double helix reciprocating screw, and when the driving gear drives the driven gear to rotate, the reverse double helix reciprocating screw performs reciprocating linear motion due to the setting of the screw slider.

[0012] In the above-mentioned reciprocating direct insertion bare seedling transplanting device, the screw rod rotation limit seat includes a support seat connected to the gear box housing, a support plate is arranged on one side of the support seat, a limit track is arranged on the side of the support plate facing the driven shaft, and the limit component is stuck in the limit track;

[0013] A limiting guide ring is arranged at one end of the reverse double-helix reciprocating screw rod, and one side of the limiting guide ring is connected with the limiting component.

[0014] As described above, in a reciprocating straight-insertion bare seedling transplanting device, the main rocker arm and the auxiliary rocker arm can be rotatably installed on the same side of the device fixing part, the main rocker arm and the auxiliary rocker arm are set at a distance, the active bevel gear shaft passes through the main rocker arm and the transverse tie rod, the active bevel gear shaft passes through one end of the main rocker arm and is equipped with a power gear, the power gear is meshed with a gear ring, the gear ring is fixed to the device fixing part, the gear ring coincides with the axis of the driving end of the power source, and the radius of the gear ring is smaller than the length of the transverse tie rod.

[0015] In the reciprocating direct insertion bare seedling transplanting device as described above, the active bevel gear shaft passes through one end of the transverse tie rod and is connected to the gear transmission assembly, and the gear transmission assembly is connected to the driven shaft.

[0016] In the above-mentioned reciprocating direct insertion bare seedling transplanting device on film, the tie rod is connected to the gear box assembly through an articulated shaft seat, the articulated shaft seat is provided with an articulated shaft, and the articulated shaft passes through the tie rod and the auxiliary rocker arm;

[0017] The installation angle of the device fixing part relative to the transplanter is replaceable to meet different needs.

[0018] In a second aspect, a reciprocating direct insertion bare seedling transplanting method on a film is provided, which uses the reciprocating direct insertion bare seedling transplanting device on a film, and includes the following contents:

[0019] The frame assembly is fixed to the transplanter;

[0020] The end of the main rocker arm away from the device fixing part can generate rotational power between the frame assembly, thereby driving the driving gear to rotate, and then driving the driven gear to rotate, driving the reciprocating seedling insertion assembly to realize reciprocating linear motion. When the connecting rod assembly completes one rotation, the reciprocating seedling insertion assembly completes a reciprocating axial motion. When the main rocker arm moves to the lower position, the reciprocating seedling insertion assembly extends to a longer state to realize seedling insertion on the membrane.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1) The membrane transplanting device provided by the present invention has a reasonable structure. The main rocker arm can generate rotational power between the frame assembly, the cross-tie rod can realize translation and rotational movement in a set plane, and a gear box assembly is arranged at the cross-tie rod. The gear box assembly cooperates with the reciprocating seedling insertion assembly. When the main rocker arm moves to a low position, the reciprocating seedling insertion assembly extends to a longer state to realize seedling transplanting. When the bare seedlings are transplanted on the membrane, the problems of poor stability, large membrane opening, large soil disturbance and poor soil covering effect can be effectively solved. It adopts a mechanized method to simulate the manual handheld fork-shaped potato seedling planter to replace manual insertion of the potato seedlings directly into the soil to continuously plant the bare seedlings, and a higher transplanting quality of the bare seedlings has been achieved.

[0023] 2) Compared with other types of bare seedling transplanting devices (clamp type, chain clamp type, wheel type, etc.), the membrane transplanting device of the present invention has fewer parts and components, simple principles and structures, and is therefore not easily damaged during operation and has good stability. Due to the special structural design of the device, compared with other types of transplanting devices such as clamp type and chain clamp type, the seedling inserts of the device only move in a single longitudinal plane when transplanted into the soil without lateral movement, and only the seedling inserts, which are small structural parts, move in the soil when entering and emerging from the soil, that is, the working space during the transplanting process is relatively small. Therefore, the device has the advantages of small membrane rupture, small soil disturbance and good soil covering effect during operation.

[0024] 3) The device fixing parts in the on-film transplanting device of the present invention are used to connect with the existing transplanting machine, so that the overall installation angle can be adjusted by adjusting the position of the device fixing parts, the transmission ratio of the gears in the gear box assembly and the length dimensions of each part can be adjusted to realize various forms of bare seedlings such as "boat bottom shape", "hook shape", "horizontal shape", "oblique shape" and other planting methods with different transplanting agronomic requirements.

[0025] 4) In the present invention, the driving motor transmits continuous unidirectional rotational power to the main rocker arm, and the main rocker arm drives the connecting rod assembly to perform translational rotational motion, and transmits the rotational torque generated by the meshing of the gear ring to the reciprocating screw assembly through the gear transmission assembly. The gear transmission assembly changes the rotational motion by 90° and transmits it to the inside of the gear box assembly through the driven shaft. The inside of the gear box assembly transmits the rotational power to the reverse double-helix reciprocating screw through gear transmission. The reverse double-helix reciprocating screw is rigidly connected to the seedling inserter and performs reciprocating translational motion along its axis. The continuous rotational motion generated by the connecting rod assembly is combined with the reciprocating axial translational motion generated by the reverse double-helix reciprocating screw to form the required potato seedling transplanting trajectory. The seedling inserter inserts the bare sweet potato seedlings into the soil along a certain transplanting trajectory to complete the potato seedling transplanting work. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0027] Figure 1 It is a schematic diagram of the working state of a reciprocating direct insertion bare seedling transplanting device on film according to one or more embodiments of the present invention.

[0028] Figure 2 The present invention is a schematic diagram of a reciprocating direct insertion bare seedling film transplanting device according to one or more embodiments. Figure 1 .

[0029] Figure 3 The present invention is a schematic diagram of a reciprocating direct insertion bare seedling film transplanting device according to one or more embodiments. Figure 2 .

[0030] Figure 4 The present invention is a schematic diagram of a reciprocating direct insertion bare seedling film transplanting device according to one or more embodiments. Figure 3 .

[0031] Figure 5 It is a schematic diagram of a frame assembly in a reciprocating direct insertion bare seedling transplanting device on film according to one or more embodiments of the present invention.

[0032] Figure 6 The invention is a schematic diagram of a connecting rod assembly in a reciprocating direct insertion bare seedling film transplanting device according to one or more embodiments of the present invention. Figure 1 .

[0033] Figure 7 The invention is a schematic diagram of a connecting rod assembly in a reciprocating direct insertion bare seedling film transplanting device according to one or more embodiments of the present invention. Figure 2 .

[0034] Figure 8 It is a schematic diagram of the cooperation between a gear box assembly and a reciprocating screw rod seedling insertion assembly in a reciprocating direct insertion bare seedling on-film transplanting device according to one or more embodiments of the present invention.

[0035] Fig. 9 It is a schematic diagram of half of a gear box housing in a reciprocating direct insertion bare seedling transplanting device on film according to one or more embodiments of the present invention.

[0036] Fig.10 It is a schematic diagram of a screw rod rotation limit seat in a reciprocating direct insertion bare seedling transplanting device on film according to one or more embodiments of the present invention.

[0037] Fig.11It is a front view of a screw rod rotation limit seat in a reciprocating direct insertion bare seedling film transplanting device according to one or more embodiments of the present invention.

[0038] Fig.12 It is an enlarged schematic diagram of the cooperation between the gear box assembly and the reciprocating screw rod seedling insertion assembly in a reciprocating direct insertion bare seedling on-film transplanting device according to one or more embodiments of the present invention.

[0039] Fig.13 The present invention Fig.12 Schematic diagram of the AA section.

[0040] Fig.14 The present invention Fig.12 Schematic diagram of the BB section.

[0041] Fig.15 The present invention Fig.12 Schematic diagram of the CC section.

[0042] Fig.16 It is a schematic diagram of a reverse double-helix reciprocating screw in a reciprocating direct-insertion bare seedling transplanting device on film according to one or more embodiments of the present invention.

[0043] Fig.17 It is a front view of a reverse double-helix reciprocating screw in a reciprocating direct-insertion bare seedling transplanting device on film according to one or more embodiments of the present invention.

[0044] Fig.18 It is a schematic diagram of a bevel gear transmission assembly in a reciprocating direct insertion bare seedling transplanting device on film according to one or more embodiments of the present invention.

[0045] Fig.19 It is a front view of a bevel gear transmission assembly in a reciprocating direct insertion bare seedling transplanting device on film according to one or more embodiments of the present invention.

[0046] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0047] Wherein: 1. frame assembly, 101. driving motor, 102. gear ring, 103. device fixing plate;

[0048] 2. Connecting rod assembly, 201. Main rocker arm, 202. Auxiliary rocker arm, 203. Articulated shaft seat, 204. Tie rod;

[0049] 3. Gearbox assembly, 301. Gearbox housing, 3011. First convex part, 3012. Second convex part, 3013. Limiting plate, 302. Screw rotation limiting seat, 3021. Limiting track, 3022. Support seat, 3023. Support plate, 3024. Reinforced plate, 303. Driving gear, 304. Driven gear, 305. Screw slider, 306. Driven shaft mounting hole, 307. Double helical screw mounting hole, 308. Bearing, 309. Circlip;

[0050] 4. Reciprocating screw rod seedling inserting assembly, 401. Limit bearing wheel, 402. Limit guide ring, 403. Fixed pin shaft, 404. Reverse double helix reciprocating screw rod, 405. Seedling inserting;

[0051] 5. Gear transmission assembly, 501. Power gear, 502. Driving bevel gear shaft, 503. Driving bevel gear, 504. Driven free bevel gear, 505. Driving free bevel gear, 506. Driven bevel gear, 507. Driven shaft. DETAILED DESCRIPTION

[0052] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0053] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof;

[0054] As introduced in the background technology, the prior art has the problem of large soil-breaking area of ​​the membrane transplanting device. In order to solve the above technical problem, the present invention proposes a reciprocating direct-insertion bare seedling membrane transplanting device.

[0055] Embodiment 1

[0056] In a typical embodiment of the present invention, reference is made to Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a reciprocating direct insertion bare seedling transplanting device on film includes a frame assembly 1, a connecting rod assembly 2, a gear box assembly 3, a reciprocating screw rod seedling insertion assembly 4 and a gear transmission assembly 5. The gear box assembly 3, the reciprocating screw rod seedling insertion assembly 4 and the gear transmission assembly 5 are directly or indirectly installed on the transverse tie rod 204 in the connecting rod assembly 2, and move with the movement of the transverse tie rod 204 during operation. The device fixing part, the main rocker arm, the auxiliary rocker arm and the transverse tie rod constitute a connecting rod assembly. The connecting rod assembly is specifically a four-link assembly. The connection between the auxiliary rocker arm and the device fixing part is lower than the connection between the main rocker arm and the device fixing part, that is, the device fixing part is arranged tilted downward.

[0057] As shown in Reference 5, the frame assembly 1 includes a power source, which is connected to the device fixing part, which is specifically a device fixing plate 103, which is connected to the connecting rod assembly 2, and the device fixing plate is fixedly connected to the ring gear 103. The power source can specifically be a drive motor 101. Of course, it can also be a chain drive or other mechanical form. The drive motor 101 is fixedly installed on the circumferential side of the rotating hole of the main rocker arm 201 of the device fixing part by bolt connection, and the ring gear 102 coincides with the output shaft axis of the drive motor 101, and the relative position of the ring gear and the drive motor is fixed.

[0058] It is easy to understand that, when working, the frame assembly 1 can directly or indirectly provide mounting points for other components, and is fixedly mounted at a corresponding position of the transplanter without any relative movement between the frame assembly 1 and the transplanter.

[0059] refer to Figure 6 and Figure 7 As shown, the connecting rod assembly 2 includes a main rocker arm 201 and an auxiliary rocker arm 202. The driving end of the power source passes through the device fixing plate 103 and is connected to the main rocker arm 201. The device fixing plate is hingedly connected to the auxiliary rocker arm 202. The main rocker arm 201 and the auxiliary rocker arm 202 can both rotate relative to the device fixing plate 103. The front ends of the main rocker arm 201 and the auxiliary rocker arm 202 are respectively fixed at corresponding positions of the device fixing plate 103 by means of hinged connections, and a fixed distance is maintained between the rotation axes of the main rocker arm 201 and the auxiliary rocker arm 202. The main rocker arm 201 and the auxiliary rocker arm 202 are hingedly connected by a tie rod 204. The main rocker arm 201 and the tie rod 204 are fixed to the active bevel gear shaft 502 (the active bevel gear shaft provides an installation position for the gear transmission assembly 5) by bearings and retaining rings. During the operation of the device, the main rocker arm 201 serves as a dynamic fulcrum, and its rotation axis serves as the main movement axis. Through the coordinated action with the auxiliary rocker arm 202, the tie rod 204 completes the translation and rotation movement of a specific path in the longitudinal plane. This movement mode is the key to realizing the working principle of the entire mechanical transmission system.

[0060] In addition, an articulated shaft seat 203 is set on the outer side of the transverse tie rod 204 relative to the device fixing plate 103. One end of the transverse tie rod 204 is hingedly connected to the auxiliary rocker arm 202 and the articulated shaft 2033 of the articulated shaft seat 203 through bearings, etc. The articulated shaft seat 203 provides an installation fixing point for the gear box assembly 3, and the articulated shaft seat is fixed or snap-connected to the gear box assembly.

[0061] Specifically, the articulated shaft seat 203 includes a U-shaped seat 2031, the width of the U-shaped seat 2031 is greater than or equal to the thickness of the gear box housing 301, so that the U-shaped seat is engaged with the gear box housing, and the connecting bolts are arranged through both sides of the U-shaped seat. A protruding strip 2032 is arranged inside the U-shaped seat, and the protruding strip can be inserted into the recess of the gear box housing.

[0062] refer to Figure 8 As shown, the gearbox assembly 3 is mainly composed of a gearbox housing 301, a screw rod rotation limit seat 302, a driving gear 303, a driven gear 304 and a screw rod slider 305. The gearbox housing 301 includes two halves, and a driving gear 303 and a driven gear 304 are arranged inside the gearbox housing 301. The two halves of the gearbox housing are connected and fixed by bolts. One side of the gearbox housing 301 is connected to the articulated shaft seat 203, and the other side is connected to the screw rod rotation limit seat 302. The articulated shaft seat 203 and the screw rod rotation limit seat 302 are arranged opposite to each other. The gearbox assembly 3 serves as the transmission core of the entire transplanting device, and is externally connected to the connecting rod assembly 2, the gear transmission assembly 5 and the reciprocating screw rod seedling insertion assembly 4, respectively, and plays a vital role in the entire device.

[0063] refer to Fig. 9 As shown, the gearbox housing 301 is provided with a driven shaft mounting hole 306 and a double-helix screw mounting hole 307 , the driven shaft is arranged through the driven shaft mounting hole 306 , and the reverse double-helix reciprocating screw 404 is arranged through the double-helix screw mounting hole 307 .

[0064] refer to Figure 8 As shown, the distance between the screw rod rotation limit seat 302 and the driven shaft is set, refer to Fig.10As shown, the screw rotation limit seat 302 includes a support seat 3022 connected to the gear box housing 301, the structure of the support seat 3022 is the same as that of the hinged shaft seat, a support plate 3023 is arranged on one side of the support seat 3022, the length of the support plate 3023 is longer than that of the driven shaft, a limit track 3021 is arranged on the side of the support plate facing the driven shaft, and a limit component is arranged at one end of the reverse double-helix reciprocating screw passing through the gear box housing, and the limit component is stuck in the limit track 3021. Specifically, a limiting bearing wheel 401 is selected, and a reinforcing plate 3024 is set on the side of the support plate away from the limiting track. The reinforcing plate 3024 is connected to the support seat. The limiting track of the screw rotation limiting seat 302 is parallel to the axis of the reverse double helix reciprocating screw 404. The limiting track is mainly responsible for limiting the rotational movement of the reverse double helix reciprocating screw 404 caused by the reaction force of the driven gear 304 and the screw slider 305, forcing the reverse double helix reciprocating screw 404 to only perform reciprocating translational movement along its axial direction.

[0065] refer to Fig.13 As shown, the driving gear 303 is meshed with the driven gear 304, and a screw slider 305 is disposed in the keyway of the driven gear 304. The driven gear 304 drives the screw slider 305 to rotate along the double-helix screw mounting hole 307 of the gear box housing;

[0066] The gearbox housing consists of two halves, refer to Fig. 9 and Fig.15 As shown, a first convex portion 3011 is arranged inside each half of the gearbox housing, and the first convex portion 3011 is an annular convex portion, and a double helical screw mounting hole 307 is formed inside the first convex portion. The outer side of the first convex portion supports the driven gear through a bearing so that the driven gear can rotate relative to the first convex portion. A bearing 308 and a retaining spring 309 are arranged between the driven gear 304 and the double helical screw mounting hole 307 of the gearbox 301. The driven gear 304 is supported by two bearings 308 inside the gearbox housing, and the bearings are located at the driven gear On both sides of 304, the retaining spring 309 is located at a position where the bearing is far away from the other bearing. A screw slider 305 is installed at the center of the keyway of the driven gear 304. Since bearings are installed at both ends of the keyway, the screw slider 305 and the driven gear 304 cannot produce relative displacement. Rotary bearings are placed at the shaft end of the screw slider 305 and the center of the keyway of the driven gear 304, so that the screw slider 305 can rotate along its axial direction with the driven gear 304 and can also rotate along the axial direction of the screw slider 305 itself.

[0067] It should be added that the outer shaped convex ball area of ​​the screw slider 305 is closely connected with the spiral groove surface of the reverse double helical reciprocating screw 404, and there is a sliding pair between the two when the device is working, so that the outer shaped convex ball area of ​​the screw slider 305 can continue to slide in the spiral groove of the reverse double helical reciprocating screw 404;

[0068] refer to Fig. 9 and Fig.14 As shown, a second convex portion 3012 is arranged inside the gearbox housing, and the second convex portion 3012 is an annular convex portion. A limiting end face 3013 is arranged at the end of the gearbox housing, and a driven shaft hole 306 is formed at the limiting end face 3013. The height of the second convex portion 3012 is less than that of the first convex portion. The driving gear is located between the second convex portions 3012 on both sides, and the inner diameter of the second convex portion 3012 is greater than the diameter of the driven shaft hole of the gearbox housing. The driven shaft passes through the driving gear and is connected to the driving gear to drive the rotation of the driving gear. A bearing is arranged between the driven shaft and the second convex portion so that the driven gear can rotate relative to the second convex portion 3012. Circlips 309 are arranged on both sides of the bearing, and circlips 309 are also arranged at both ends of the driving gear 303. The driving gear is connected to the driven shaft through a key block, so that the driving gear 303 is fixedly connected to the driven shaft 507 through the key block and the circlip and rotates with it.

[0069] refer to Fig.16 and Fig.17 As shown, the reciprocating screw seedling inserting assembly 4 includes a limiting bearing wheel 401, a limiting guide ring 402, a fixed pin 403, a reverse double helix reciprocating screw 404 and a seedling insert 405. The limiting bearing wheel 401 is fixed to the outer shaft end of the limiting guide ring 402 by a retaining spring, the limiting guide ring 402 is fixed to the shaft end of the reverse double helix reciprocating screw 404 by a fixed pin 403, the other end of the reverse double helix reciprocating screw 404 is fixedly connected to the seedling insert 405, the limiting bearing wheel 401 is fixedly connected to the reverse double helix reciprocating screw 404 by the limiting guide ring 402, and moves in the limiting track of the screw rotation limiting seat 302 during operation;

[0070] It is easy to understand that the limiting track can be a T-shaped track, and a T-shaped piece is formed between the limiting bearing wheel 401 and one side of the limiting guide ring 402, so as to prevent the limiting bearing wheel 401 from detaching from the limiting track.

[0071] It should be noted that the seedling insert 405 includes a straight rod connected to one end of the reverse double-helix reciprocating screw rod 404, and a V-shaped piece is provided at the end of the straight rod to press the seedling.

[0072] Among them, there are two semicircular spiral grooves with opposite rotation directions on the shaft of the reverse double-helix reciprocating screw 404, and the two spiral lines (spiral grooves) are smoothly connected at the shaft ends on both sides. When working, the special-shaped convex ball area on the outer side of the screw slider 305 can be closely tangent to the spiral groove, and can smoothly and steadily change direction at both end surfaces.

[0073] Specifically, refer to Fig.18 and Fig.19As shown, the gear transmission assembly 5 includes a power gear 501, a driving bevel gear shaft 502, a driving bevel gear 503, a driven free bevel gear 504, a driving free bevel gear 505, a driven bevel gear 506 and a driven shaft 507; the two sides of the driving bevel gear 503 are respectively meshed with the driven free bevel gear 504 and the driven bevel gear 506, the driving bevel gear 503 and the driving free bevel gear 505 are arranged opposite to each other, the driven free bevel gear 504 and the driven bevel gear 506 are both meshed with the driving free bevel gear 505, and the driven bevel gear 506 is connected to the driven shaft 507;

[0074] Specifically, the main rocker arm 201 is hinged with the tie rod 204 through the driving bevel gear shaft 502 in the gear transmission assembly 5, and the driving bevel gear shaft 502 is arranged through the tie rod 204. The inner side of the driving bevel gear shaft 502 is fixedly connected with the power gear 501, and the power gear 501 is located on the inner side of the ring gear and meshes with the ring gear 102, and the outer side is fixedly connected with the driving bevel gear 503. When the main rocker arm 201 rotates, the power gear 501 is driven by the driving bevel gear shaft 502 to mesh and roll on the ring gear 102 to generate a rotational motion (the rotation center of the main rocker arm 201 coincides with the axis of the ring gear 102), and the power gear 501 transmits the rotational power to the driving bevel gear 503 through the driving bevel gear shaft 502. This part of the rotational power is transmitted to the driving gear 303 inside the gear box assembly 3 through the gear transmission assembly 5, and the transmission of the rotational power is specifically achieved by fixing the driven shaft 507 to the driving gear 303.

[0075] It is easy to understand that the power gear 501 and the active bevel gear 503 are fixedly connected to the active bevel gear shaft 502 through a key block and a retaining spring, and there is no relative movement between the three; the active free bevel gear 505 is connected to the active bevel gear shaft 502 through a bearing and a retaining spring, and there is only relative rotational movement between the two.

[0076] In this embodiment, the driven free bevel gear 504 and the driven bevel gear 506 are sequentially installed on the corresponding positions of the driven shaft 507. The driven free bevel gear 504 is connected to the driven shaft 507 through a bearing and a retaining spring, and there is only relative rotational movement between the two; the driven bevel gear 506 is fixedly connected to the driven shaft 507 through a key block and a retaining spring, and there is no relative movement between the two.

[0077] During operation, the rotational power generated by the meshing of the power gear 501 and the gear ring 102 is transmitted to the driving bevel gear 503 through the driving bevel gear shaft 502, and the driving bevel gear 503 is meshed with the driven bevel gear 506, so that the rotational power is reversed by 90 degrees and output to the inside of the gearbox assembly 3 through the driven shaft 507. In this process, the functions of the driven free bevel gear 504 and the driving free bevel gear 505 are to balance the unilateral meshing force generated by the meshing of the driving bevel gear 503 and the driven bevel gear 506, respectively, to avoid fatigue deformation of the gear transmission assembly 5 due to unbalanced force.

[0078] Embodiment 2

[0079] This embodiment discloses a working method of a reciprocating direct insertion bare seedlings on film transplanting device, using the reciprocating direct insertion bare seedlings on film transplanting device described in the first embodiment, including the following contents:

[0080] Taking the transplanting of bare sweet potato seedlings on the film as an example, during operation, the transplanting device is installed and fixed to the corresponding position behind the bare seedling conveying assembly of the transplanter, and the seedlings are inserted and placed above the potato seedlings in the seedling placing plate. The entire transplanting device and the bare seedling conveying assembly are placed on the ridge, and the transplanter inputs continuous rotation power to the main rocker arm 201 outside the transplanting device through a chain sprocket (or other forms such as a motor). After adjusting the posture of the transplanting device, the whole machine starts to work. The device can effectively realize various transplanting postures of potato seedlings in the soil according to the agronomic requirements of potato seedling transplanting, and meet the complex agronomic requirements of sweet potato seedlings.

[0081] The frame assembly is fixed to a transplanter, which is an existing agricultural equipment;

[0082] The rotational power is transmitted to the device fixing plate 102 through the motor 101, and then transmitted to the main rocker arm 201, and the main rocker arm 201 drives the connecting rod assembly 2 to set the trajectory movement;

[0083] The main rocker arm generates rotational power with the gear ring during the rotation process, and then drives the driving gear to rotate through the gear transmission component 5, and then drives the driven gear to rotate. Since a screw slider 305 is provided in the keyway of the driven gear, the screw slider 305 is in close contact with the reverse double-helix reciprocating screw, so that the reverse double-helix reciprocating screw 404 can perform linear motion. Since the reverse double-helix reciprocating screw 404 is subject to the rotation limiting effect of the limiting bearing wheel 401 and the screw rotation limiting seat 302, the reverse rotation force it is subjected to is limited, forcing the reverse double-helix reciprocating screw 404 to achieve reciprocating axial movement along its axis under the continuous unidirectional rotation of the driven gear 304;

[0084] During the operation of the transplanting device, the connecting rod assembly 2 completes a rotational motion and the reciprocating screw rod seedling insertion assembly 4 also completes a reciprocating axial motion. This process is a working cycle of the device, that is, a potato seedling transplanting process.

[0085] During the operation of the transplanting device, the reciprocating rotational motion of the connecting rod assembly 2 is combined with the axial reciprocating linear motion of the reciprocating screw seedling insertion assembly 4 to form a transplanting trajectory that meets the agronomic requirements of potato seedling planting. During this process, only the seedling insertion 405 part of the device is inserted into the soil, thereby solving the problems of large membrane opening and poor soil backfilling effect on the basis of ensuring that the posture of the bare seedlings meets the agronomic requirements after transplanting.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A reciprocating direct insertion bare seedling film transplanting device, characterized in that: The invention comprises a frame assembly, which comprises a power source and a device fixing part. The power source is installed on the device fixing part, and the device fixing part can be fixed to the transplanter. The driving end of the power source passes through the device fixing part and is connected with the main rocker arm of the connecting rod assembly. The device fixing part, the main rocker arm, the auxiliary rocker arm and the cross rod form a connecting rod assembly. The connection between the auxiliary rocker arm and the device fixing part is lower than the connection between the main rocker arm and the device fixing part. The end of the main rocker arm away from the device fixing part can generate rotational power with the frame assembly. The cross rod can realize translation and rotational movement within a set plane. A gear box assembly is arranged at the cross rod. A driving gear and a driven gear that mesh with each other are arranged inside the gear box assembly. The driving gear is connected to the main rocker arm, and the driven gear is connected to the reciprocating seedling insertion assembly. The main rocker arm drives the driving gear to rotate during the rotation process, and then drives the driven gear to rotate, driving the reciprocating seedling insertion assembly to realize reciprocating linear motion. When the main rocker arm moves to a lower position, the reciprocating seedling insertion assembly is extended to a longer state to realize seedling transplanting.

2. A reciprocating direct insertion bare seedling film transplanting device according to claim 1, characterized in that: The gear box assembly includes a gear box housing, the driving gear and the driven gear are arranged in the gear box housing, the driven gear cooperates with the reverse double-helix reciprocating screw rod, a limiting component is arranged after one end of the reverse double-helix reciprocating screw rod passes through the gear box housing, the limiting component cooperates with the screw rod rotation limiting seat fixed to the gear box housing, and a seedling plug is arranged at the other end of the reverse double-helix reciprocating screw rod.

3. A reciprocating direct insertion bare seedling film transplanting device according to claim 2, characterized in that: The gearbox housing includes two halves, each half of which is provided with a first convex portion inside, and the outer side of the first convex portion supports the driven gear through a bearing so that the driven gear can rotate relative to the first convex portion, and the retaining spring is located at a position where the bearing is away from the other bearing.

4. A reciprocating direct insertion bare seedling film transplanting device according to claim 3, characterized in that: A second convex portion is arranged inside the gearbox housing, and a height of the second convex portion is smaller than a height of the first convex portion. The driving gear is located between the second convex portions on both sides, and an inner diameter of the second convex portion is larger than a diameter of a driven shaft hole of the gearbox housing. The driven shaft passes through the driving gear and is connected to the driving gear to drive the rotation of the driving gear. The driven shaft is connected to the main rocker arm, and a bearing is arranged between the driven shaft and the second convex portion so that the driven gear can rotate relative to the second convex portion.

5. A reciprocating direct insertion bare seedling film transplanting device according to claim 2, characterized in that: The keyway of the driven gear is provided with a screw slider, which is connected to the reverse double-helix reciprocating screw. When the driving gear drives the driven gear to rotate, the reverse double-helix reciprocating screw performs reciprocating linear motion due to the setting of the screw slider.

6. A reciprocating direct insertion bare seedling film transplanting device according to claim 2, characterized in that: The screw rod rotation limit seat comprises a support seat connected to the gear box housing, a support plate is arranged on one side of the support seat, a limit track is arranged on the side of the support plate facing the driven shaft, and the limit component is clamped in the limit track; A limiting guide ring is arranged at one end of the reverse double-helix reciprocating screw rod, and one side of the limiting guide ring is connected with the limiting component.

7. A reciprocating direct insertion bare seedling film transplanting device according to claim 4, characterized in that: The main rocker arm and the auxiliary rocker arm can be rotatably installed on the same side of the device fixing part. The main rocker arm and the auxiliary rocker arm are set at a distance. The active bevel gear shaft passes through the main rocker arm and the transverse tie rod. The active bevel gear shaft passes through one end of the main rocker arm and is equipped with a power gear. The power gear is meshed with a gear ring. The gear ring is fixed to the device fixing part. The gear ring coincides with the axis of the driving end of the power source, and the radius of the gear ring is smaller than the length of the transverse tie rod.

8. A reciprocating direct insertion bare seedling film transplanting device according to claim 7, characterized in that: The driving bevel gear shaft passes through one end of the tie rod and is connected with the gear transmission assembly, and the gear transmission assembly is connected with the driven shaft.

9. A reciprocating direct insertion bare seedling film transplanting device according to claim 1, characterized in that: The tie rod is connected to the gear box assembly via an articulated shaft seat, the articulated shaft seat is provided with an articulated shaft, and the articulated shaft passes through the tie rod and the auxiliary rocker arm; The installation angle of the device fixing part relative to the transplanter is replaceable.

10. A reciprocating direct insertion bare seedling transplanting method on film, characterized in that: A reciprocating direct insertion bare seedling film transplanting device according to any one of claims 1 to 9, comprising the following contents: The frame assembly is fixed to the transplanter; The end of the main rocker arm away from the device fixing part can generate rotational power between the frame assembly, thereby driving the driving gear to rotate, and then driving the driven gear to rotate, driving the reciprocating seedling insertion assembly to realize reciprocating linear motion. When the connecting rod assembly completes one rotation, the reciprocating seedling insertion assembly completes a reciprocating axial motion. When the main rocker arm moves to the lower position, the reciprocating seedling insertion assembly extends to a longer state to realize seedling insertion on the membrane.

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