Pull-driven seeding device

Abstract

The invention relates to the field of agricultural machinery, in particular to a traction-driven seeding device which comprises a chassis system, a traction assembly, two groups of main wheel assemblies, two groups of seeding mechanisms, two groups of ploughing assemblies and two groups of soil returning assemblies, and the chassis system serves as a basic framework and is used for bearing other various components; the traction assembly can drive the chassis machine to move after being connected with an external traction vehicle. The seeding mechanism is used for inserting plant branches or stems into soil along with the movement of the underframe system, the main wheel assembly enables the underframe system to freely move and drives the seeding mechanism to work, the ploughing assembly corresponds to the seeding mechanism and is used for ploughing gullies in the land before seeding, and the soil returning assembly is used for burying the inserted branches. A driving mode of dragging by a traction vehicle is adopted, an independent driving source does not need to be arranged, the cost is saved, the manufacturing cost is low, and the arranged seeding mechanism can be used for stably, efficiently and neatly inserting branches or stems into the land and then backfilling and burying soil.

Description

Technical Field

[0001] The invention relates to the field of agricultural machinery, and in particular to a traction-driven sowing device. Background Art

[0002] With the advancement of technology, the types and performance of planting equipment are constantly improving. Today, there are many types of seeding machines on the market, including integrated drive seeding vehicles and manually driven walk-behind seeders. Typical seeding machines are generally suitable for planting seed crops, such as corn, potatoes, etc., or sowing rice seedlings. Its working process usually includes steps such as hole opening, sowing and covering soil, and is suitable for sowing by furrow sowing or direct sowing.

[0003] However, the above seeding equipment is not suitable for plants that are propagated by cuttings, such as sweet potato seedlings, roses, poplars, willows, etc. Plants propagated by cuttings require branches or stem segments to be inserted directly into the soil, and there are strict requirements on the insertion depth, angle and sowing speed. In order to meet these needs, some mechanical equipment dedicated to planting has also appeared on the market, which uses power sources such as hydraulics and cams to drill holes in the soil and insert branches or stem segments into predetermined positions. However, due to the design of its independent power system, this type of equipment usually has high weight, cost and low production efficiency. Therefore, plants propagated by cuttings usually rely on manual operation, resulting in low planting efficiency and high cost. Summary of the invention

[0004] The object of the present invention is to provide a traction-driven sowing device to solve the problems of low efficiency and high cost in the prior art for sowing plants propagated by cuttings.

[0005] In order to achieve the above purpose, the following technical solutions are adopted:

[0006] A traction-driven seeding device, comprising:

[0007] An underframe system, the underframe system comprising one or more main beams arranged side by side and two groups of cross beams rotatably connected to the main beams at one end, two of the cross beams forming one group;

[0008] A traction assembly, the traction assembly is arranged on the main beam and is used to connect with a traction vehicle;

[0009] Two sets of sowing mechanisms, the sowing mechanisms include a travel frame, a plurality of rotatable sprockets rotatably arranged on the travel frame, a first chain that surrounds the travel frame in a circle up, down, left, and right, and is meshed with the plurality of sprockets, and a plurality of clamping assemblies arranged on the first chain, the travel of the first chain below the travel frame is straight, the clamping assembly includes a connecting arm, a clamping seat, two bow-shaped bars, and an elastic member, one end of the connecting arm is connected to the first chain, and the other end of the connecting arm is sleeved with the clamping seat, The holder is made of rubber, and includes two clamping pieces that can be opened and closed. The middle parts of the two arched bars can be rotatably connected to the two sides of the connecting arm, and one end of the two arched bars is respectively connected to the clamping pieces, and the other end is provided with a roller. The two ends of the elastic member are connected to the two arched bars to form an elastic force barrier when the two arched bars are brought together. Two side-by-side L-shaped limit plates are provided on the crossbeam, in front of and below the travel frame, and the two L-shaped limit plates are used to allow the two arched bars to rotate and close after entering.

[0010] Two sets of main wheel assemblies, the main wheel assemblies include main wheels, the two sets of main wheel assemblies are respectively arranged at both ends of the main beam in an adjustable manner, the main wheels are coaxially connected with a second chain, the second chain is also connected to one end of a rotatable transmission shaft spanning above the cross beam, the other end of the transmission shaft is connected to a third chain, and the third chain is also connected to any one of the sprockets;

[0011] Two sets of plowing assemblies, which are arranged below the crossbeam and in front of the bottom of the travel frame, and are used to plow furrows during the forward movement;

[0012] Two sets of soil-returning assemblies are located between the plowing assembly and the sowing mechanism, and are used to move and backfill the soil on both sides of the furrows created by the plowing assembly during the forward movement.

[0013] Furthermore, the traction assembly includes three traction rods arranged on the main beam, and the heads of the three traction rods are connected together to form a pyramid shape.

[0014] Furthermore, the main wheel assembly also includes:

[0015] A first connecting seat, the first connecting seat is installed at one end of the main beam, the transmission shaft passes through and is axially connected to the first connecting seat, the;

[0016] A cover body, wherein the cover body covers the upper part of the main wheel and is rotatably connected to the main wheel, and the cover body is also rotatably connected to the first connecting seat;

[0017] A lead screw, one end of which is fixed with a handwheel and is axially connected to the first connecting seat, and the other end of which is connected to a nut seat located at the top of the cover body.

[0018] Furthermore, the seeding device further includes two sets of auxiliary wheel assemblies respectively installed at the ends of the two cross beams far from the main beam. Each set of the auxiliary wheel assemblies includes two auxiliary wheels. Two connecting rods are respectively arranged on both sides of the two cross beams of the same set. One end of the auxiliary wheel is rotatably connected to the connecting rod, and the other end of the connecting rod is rotatably connected to one end of an L-shaped connecting plate. The L-shaped connecting plate is fixed to the cross beam, and the other end of the L-shaped connecting plate is connected to the first shock absorber, and the other end of the first shock absorber is connected to the end of the connecting rod facing the auxiliary wheel.

[0019] Furthermore, the two auxiliary wheels are inclined towards each other.

[0020] Furthermore, the tops of the two L-shaped limit plates are bent away from each other.

[0021] Furthermore, the elastic member is in a "Ji" shape, its top clamps the clamping seat, and its two ends are respectively connected to the inner sides of the two bow-shaped strips.

[0022] Furthermore, the plowing assembly includes:

[0023] A plow, which is composed of two first plowing blades and one second plowing blade. The two first plowing blades are located between the two cross beams, and their tops are respectively limited above the cross beams. The front ends of the two first plowing blades are bent and closed to form an acute angle. The second plowing blade passes through the intersection of the two first plowing blades, and multiple clamping assemblies pass between the two first plowing blades;

[0024] A second shock absorber, one end of which is connected to a second connecting seat located on the main beam, and the other end of which is connected to the plow.

[0025] Furthermore, the soil-returning assembly includes two baffles. The two baffles are located on both sides of the two cross beams and their two ends are close to each other. Support rods are respectively arranged on both sides of the cross beam. Vertical rods are arranged on the tops of the baffles. The vertical rods pass through a mounting block, and the mounting block is connected to the support rod in a travel-adjustable manner.

[0026] Furthermore, two seats are also arranged on the main beam.

[0027] Adopting the above scheme, the beneficial effects of the present invention are:

[0028] The working process of the present invention is to manually place the stalks in the clamping seat of the clamping assembly, and when the chassis system is dragged forward, the plowing assembly will open up gullies, and the backfilling assembly will fill the loose soil into the gullies, and bury the bottom of the stalks of the clamping assembly in the soil at the intersection. At the same time, the main wheel assembly drives the first chain to circulate, and the clamping assembly automatically releases the stalks after leaving the L-shaped limit plate. In the whole process, no manual intervention is required except for loading, and efficient operation can be achieved. In addition, the spacing of the planting positions of each stalk is uniform, and the planting process is neat, which can effectively improve the survival rate of plants.

[0029] The present invention uses a tractor as a power source, and does not need to set up an additional independent drive system, which saves costs and reduces the equipment cost. When the tractor stops, the sowing process stops; when the tractor moves forward, the sowing starts, and the entire operation process is safe and easy to control. At the same time, the designed sowing mechanism can stably, efficiently and neatly insert branches or stems into the soil, and backfill, ensuring an ideal planting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a traction-driven seeding device according to an embodiment of the present invention;

[0031] Figure 2 It is a structural schematic diagram of a chassis system according to an embodiment of the present invention;

[0032] Figure 3 A schematic diagram of the structure of a seeding mechanism according to an embodiment of the present invention;

[0033] Figure 4 It is a structural schematic diagram of the sowing mechanism of the embodiment of the present invention after omitting part of the travel frame;

[0034] Figure 5 It is a structural schematic diagram of a clamping assembly according to an embodiment of the present invention;

[0035] Figure 6 It is a schematic structural diagram of the clamping assembly and the first chain in accordance with an embodiment of the present invention;

[0036] Figure 7 It is a schematic diagram of the transmission distribution structure of the first chain, the second chain, the third chain and the transmission shaft in an embodiment of the present invention;

[0037] Figure 8 It is a structural schematic diagram of a main wheel assembly according to an embodiment of the present invention;

[0038] Fig. 9 It is a structural schematic diagram of a traction assembly according to an embodiment of the present invention;

[0039] Fig.10 It is a schematic structural diagram of a secondary wheel assembly, a soil return assembly, and an L-shaped limiting plate according to an embodiment of the present invention;

[0040] Fig.11 It is a schematic structural diagram of a soil-returning assembly and a ploughing assembly according to an embodiment of the present invention;

[0041] Fig.12 It is a schematic structural diagram of a clamping assembly passing through a plowing device according to an embodiment of the present invention;

[0042] Fig.13 Schematic diagram of the structure of a tiller according to an embodiment of the present invention.

[0043] The accompanying drawings illustrate:

[0044] 1. chassis system; 101. main beam; 102. cross beam; 1021. support rod; 20. traction assembly; 30. main wheel assembly; 301. main wheel; 302. second chain; 303. transmission shaft; 304. fourth chain; 305. gear; 306. first connecting seat; 307. cover; 308. screw rod; 309. hand wheel; 3010. nut seat; 4. sowing mechanism; 401. travel frame; 402. sprocket; 403. first chain; 44. clamping assembly; 441. connecting arm; 442. clamping Seat; 443, bow bar; 444, elastic member; 445, roller; 446, collar; 405, L-shaped limit plate; 50, plowing assembly; 501, plowing device; 5011, first plowing piece; 5012, second plowing piece; 502, second shock absorber; 503, second connecting seat; 60, backfilling assembly; 601, baffle; 602, vertical rod; 603, mounting block; 70, secondary wheel assembly; 701, secondary wheel; 702, connecting rod; 703, L-shaped connecting plate; 704, first shock absorber; 800, seat. DETAILED DESCRIPTION

[0045] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0046] like Figure 1As shown, a traction-driven seeding device includes a chassis system 1, a traction assembly 20, two sets of main wheel assemblies 30, two sets of seeding mechanisms 4, two sets of plowing assemblies 50, and two sets of soil-recovering assemblies 60, wherein the chassis system 1 is used as a basic structure for carrying various other components; the traction assembly 20 is connected to an external traction vehicle so that the chassis system 1 can be driven to move, and can be specifically connected to a trailer hook of the vehicle or other positions; the seeding mechanism 4 is used to receive manually fed plant branches or stems, and then plant the plant branches or stems in the soil as the chassis system 1 moves; the two sets of main wheel assemblies 30 are used to carry the chassis system 1, so that the chassis system 1 can move freely and drive the seeding mechanism to work at the same time, the plowing assembly 50 corresponds to the seeding mechanism 4, and is used to plow furrows in the land before seeding; the soil-recovering assembly 60 is used to bury the planted branches and stems in the soil. The details are as follows:

[0047] like Figure 2 The frame system 1 is composed of one or more main beams 101 arranged side by side and two groups of cross beams 102 rotatably connected to the main beams 101 at one end. Two cross beams 102 form a group. When other components are carried on the cross beams 102, the cross beams 102 can be rotated and pressed down along the connection with the main beams 101 to ensure that the above-mentioned plowing assembly 50, backfilling assembly 60, sowing mechanism 4, etc. can fully contact the soil.

[0048] Please continue reading Figure 1 , the traction assembly 20 is arranged on the main beam 101, and is used to connect with the traction vehicle;

[0049] like Figure 3-6As shown, two groups of sowing mechanisms 4, the sowing mechanisms 4 include a travel frame 401, a plurality of rotatable sprockets 402 rotatably arranged on the travel frame 401, a first chain 403 that surrounds the travel frame 401 up, down, left, and right and meshes with the plurality of sprockets 402, and a plurality of clamping assemblies 44 arranged on the first chain 403, the travel of the first chain 403 below the travel frame 401 is straight, the clamping assembly 44 includes a connecting arm 441, a clamping seat 442, two bow strips 443, an elastic member 444, and a ring 446, one end of the connecting arm 441 is connected to the first chain 403, and the other end thereof is sleeved with a clamping seat 442, which is made of rubber and includes two openable and closable clamping sheets, two bow strips The middle part of 443 and the middle part of the connecting arm 441 are bound together by a ring 446, so that the two bow bars 443 can rotate along the two sides of the connecting arm 441 respectively, one end of the two bow bars 443 is respectively connected to the clamping plate, and the other end is provided with a roller 445, the two ends of the elastic member 444 are connected to the two bow bars 443 to form an elastic force barrier when the two bow bars 443 are close to each other, and two side-by-side L-shaped limit plates 405 are provided on the crossbeam 102 and in front of and below the travel frame 401, and the two L-shaped limit plates 405 are used to allow the two bow bars 443 to rotate and close after entering; wherein, the tops of the two L-shaped limit plates 405 are bent away from each other, so that the two bow bars 443 can gradually rotate and close.

[0050] like Figure 7-8 As shown, the two sets of main wheel assemblies 30 each include a main wheel 301, and the two sets of main wheel assemblies 30 are respectively arranged at both ends of the main beam 101 with adjustable heights. The main wheel 301 is coaxially connected with a second chain 302, and the second chain 302 is also connected to one end of a rotatable transmission shaft 303 spanning above the beam 102, and the other end of the transmission shaft 303 is connected to a third chain, and the third chain is also connected to any sprocket 402.

[0051] Specifically, the main wheel 301, the transmission shaft 303, and the sprocket 402 can all be coaxially provided with a gear 305, the second chain 302 is meshed with the gear 305 coaxially provided on the main wheel 301 and the gear 305 provided at one end of the transmission shaft 303, and the third chain is meshed with the gear 305 at the other end of the transmission shaft 303 and the gear 305 coaxially provided on the sprocket 402.

[0052] Continue reading Figure 1 The plowing assembly 50 is arranged below the crossbeam 102 and in front of the bottom of the travel frame 401, and is used to plow out furrows during the forward movement; the backfilling assembly 60 is located between the plowing assembly 50 and the sowing mechanism 4, and is used to backfill the soil on both sides of the furrows created by the plowing assembly 50 during the forward movement.

[0053] Among them, when the chassis system 1 is dragged forward, the main wheel 301 moves along and drives the second chain 302, the second chain 302 drives the transmission shaft 303 through the gear 305, the transmission shaft 303 drives the third chain, the third chain drives one of the sprockets 402 to rotate, and then the entire first chain 403 and the multiple clamping assemblies 44 arranged thereon rotate in a circle, when the clamping seat 442 is about to enter between the two L-shaped limit plates 405, the branch is manually placed between the two opened clamping pieces of the clamping seat 442, and the clamping assembly 44 then enters between the two L-shaped limit plates 405, the two L-shaped limit plates 405 make the two bow bars 443 rotate close to each other, the rotation of the bow bar 443 makes the two clamping pieces close together, clamping and fixing the branch, and the roller 445 arranged on the bow bar 443 makes the movement of the clamping assembly 44 smooth.

[0054] The bottom of the travel frame 401 should be straight, so that the stroke of the first chain 403 and the clamping assembly 44 thereon at the bottom of the travel frame 401 can be set to be parallel to the forward stroke of the main wheel 301. When the clamping assembly 44 holding a branch or stem comes to the bottom of the travel frame 401, that is, when it is located in the gully opened up by the plowing assembly 50, the moving stroke of the clamping assembly 44 changes from perpendicular to the ground to parallel to the ground. Since the chassis system 1, tractor, etc. will continue to move forward, the first chain 403 will continue to rotate, and the clamping assembly 44 will move backward relative to the chassis system 1, and the main wheel 301 will move forward. Therefore, the two parallel strokes, one in front and one in the back, cancel each other out, so that the relative position of the current clamping assembly 44 and the initial contact with the land remains unchanged or only moves slightly backward. Therefore, the clamping assembly 44 holding the branch will not slide in the gully or backfilled soil, avoiding damage to the branch or the clamping assembly 44.

[0055] The position of the clamping assembly 44 at the intersection of the plowing assembly 50, the backfilling assembly 60, and the sowing mechanism relative to the ground remains unchanged, but the clamping assembly 44 moves backward relative to the crossbeam 102, the travel frame 401, etc. After the clamping assembly 44 leaves the L-shaped limit plate 405, that is, after its travel changes from parallel to the ground to perpendicular to the ground in an instant, it begins to separate from the ground, and its relative position with the ground changes (moves away). At the same time, since the clamping assembly 44 is separated from the restraint of the limit channel of the travel of the two L-shaped limit plates 405, the elastic member 444 will cause the two bow bars 443 to rotate and separate from each other, that is, the two clamping pieces are separated, and the branches and stems are automatically loosened, so that the branches and stems remain in place. Among them, the plowing assembly 50 set can plow out gullies, and when the backfilling assembly 60 fills the gullies with the loose soil dug out, the bottom of the branches and stems of the clamping assembly 44 at the intersection can be filled with soil, and the branches and stems that remain in place can be buried with soil.

[0056] During the entire sowing process, except for manual loading, no human intervention is required, and the efficiency is high. When multiple clamping components 44 are evenly distributed, the distance between the planting positions of each branch can be equal, the planting is uniform, and the survival rate of the plant can be improved.

[0057] In one embodiment, if Fig. 9 As shown, the traction assembly 20 includes three traction rods arranged on the main beam 101, and the heads of the three traction rods are connected together to form a pyramid shape. Compared with the design of a single traction rod, the pyramid shape is more secure and can prevent loosening. In addition, the traction vehicle can be a tractor, and the tail of the tractor can be hooked at the connection of the heads of the three traction rods through a hook.

[0058] In one embodiment, please continue to refer to Figure 7-8 The main wheel assembly 30 further includes a first connection seat 306, a cover 307, and a screw rod 308. The first connection seat 306 is installed at one end of the main beam 101. The transmission shaft 303 passes through and is axially connected to the first connection seat 306. The cover 307 covers the upper part of the main wheel 301 and is rotatably connected to the main wheel 301. The cover 307 is also rotatably connected to the first connection seat 306. A hand wheel 309 is fixed to one end of the screw rod 308 and is axially connected to the first connection seat 306. The other end of the screw rod 308 is connected to a nut seat 3010 located at the top of the cover 307. The first connection seat 306 is specifically locked to the main beam 101 through some square frame bars to achieve convenient installation.

[0059] Among them, when the screw rod 308 is rotated by the hand wheel 309, since the relative position of the screw rod 308 and the first connecting seat 306 remains unchanged, it will drive the nut seat 3010, that is, drive the cover body 307 to rotate, which will change the height of the main wheel 301, thereby achieving height adjustment. By adjusting the height of the main wheel 301, it can adapt to land with different softness and plowing depth.

[0060] In one embodiment, if Fig.10 As shown, the seeding device also includes two groups of secondary wheel assemblies 70 respectively installed on one end of the two groups of beams 102 away from the main wheel 301, each group of secondary wheel assemblies 70 includes two secondary wheels 701, and two connecting rods 702 are respectively arranged on both sides of the two beams 102 of the same group. The secondary wheel 701 is rotatably connected to one end of the connecting rod 702, and the other end of the connecting rod 702 is rotatably connected to one end of an L-shaped connecting plate 703. The L-shaped connecting plate 703 is fixed to the beam 102, and the other end thereof is connected to the first shock absorber 704, and the other end of the first shock absorber 704 is connected to the end of the connecting rod 702 facing the secondary wheel 701.

[0061] Among them, the provided auxiliary wheel assembly 70 serves to support the rear part of the chassis system 1, preventing the rear part of the chassis system 1 from sinking; the provided first shock absorber 704, in addition to reducing the vibration caused by the movement of the auxiliary wheel 701, by adjusting the position of the first shock absorber and the L-shaped connecting plate 703, that is, shortening or lengthening the working stroke of the first shock absorber 704, enables the connecting rod 702 to rotate upward or downward, and further enables the auxiliary wheel 701 to rise or fall, realizing the height matching with the main wheel 301 to adapt to different softness of the land and the required plowing depth.

[0062] In addition, the two auxiliary wheels 701 can be arranged obliquely facing each other, so that it can further backfill the soil, that is, further heap up and compact the soil of the branch attachments after the soil pulled back by the soil returning assembly 60.

[0063] In one embodiment, please continue to refer to Figure 5 , the elastic member 444 is in a "Z" shape, its top clamps the clamping seat 442, and its two ends are respectively connected to the inner sides of the two bow-shaped strips 443.

[0064] Among them, based on the "Z"-shaped elastic member 444, it can clamp the top of the rubber-formed clamping seat 442 to prevent the clamping seat 442 from falling off the connecting arm 441, and also play a role in blocking the two bow-shaped strips 443 from closing.

[0065] In one embodiment, as Figure 11-13 shown, the plowing assembly 50 includes: a plow 501, which is composed of two first plowing blades 5011 and one second plowing blade 5012. The two first plowing blades 5011 are located between the two cross beams 102, and their tops are respectively limited above the cross beams 102. The front ends of the two first plowing blades 5011 are bent and closed to form an acute angle. The second plowing blade 5012 passes through the intersection of the two first plowing blades 5011, and a plurality of clamping assemblies 44 pass between the two first plowing blades 5011; a second shock absorber 502, one end of the second shock absorber 502 is connected to a second connecting seat 503 located on the main beam 101, and the other end is connected to the plow 501.

[0066] Among them, the second shock absorber 502 can be used to force the plow 501 to press down, so as to press the top of the plow 501 (the bent part at the top of the two first plowing blades 5011) against the cross beam 102. When the plow 501 touches a hard soil block, the second shock absorber 502 plays a role of buffering and rebounding to avoid damage to the plow 501.

[0067] The front ends of the two first plowing blades 5011 are bent and closed to form an acute angle, which can break the soil and form a gully when moving forward, and the provided second plowing blade 5012 can further improve the soil breaking effect.

[0068] In one embodiment, please continue to refer to Figure 11-13 The backfilling assembly 60 includes two baffles 601, which are located on both sides of the two beams 102 and close to each other at both ends. Support rods 1021 are respectively provided on both sides of the beams 102. A vertical rod 602 is provided on the top of the baffle 601. The vertical rod 602 passes through a mounting block 603, and the mounting block 603 is connected to the support rod 1021 with an adjustable stroke.

[0069] When the mounting block 603 is loosened from the vertical rod 602, the angle of the baffle 601 can be adjusted by rotating the vertical rod 602, and the range of the backfill can be changed by moving the position installed on the support rod 1021; after adjusting the height of the vertical rod 602 in the mounting block 603, the depth of the backfill can be changed.

[0070] In one embodiment, please continue to refer to Figure 1 Two seats 800 are also arranged on the main beam 101.

[0071] Among them, after the seat 800 is set, the staff can sit on the seat 800 and place the branches or stems one by one in the opened clamping assembly 44; at the same time, the person sitting on the seat 800 can increase the downward pressure of the chassis system 1 to ensure that the plowing assembly 50 can fully contact and break the ground.

[0072] Based on the above embodiments, it can be known that the present invention adopts a driving method of towing by a traction vehicle, and there is no need to set up an independent driving source, thereby achieving cost savings and low cost. Sowing stops when the traction vehicle stops, and sowing starts when the traction vehicle moves forward. The whole process is safe and controllable, and the set sowing mechanism can stably, efficiently and neatly insert branches or stems into the land and then backfill the land with soil.

[0073] Although the present disclosure has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present disclosure can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A traction-driven sowing device, characterized in that: include; An underframe system, the underframe system comprising one or more main beams arranged side by side and two groups of cross beams rotatably connected to the main beams at one end, two of the cross beams forming one group; A traction assembly, the traction assembly is arranged on the main beam and is used to connect with a traction vehicle; Two sets of sowing mechanisms, the sowing mechanisms include a travel frame, a plurality of rotatable sprockets rotatably arranged on the travel frame, a first chain that surrounds the travel frame in a circle up, down, left, and right, and is meshed with the plurality of sprockets, and a plurality of clamping assemblies arranged on the first chain, the travel of the first chain below the travel frame is straight, the clamping assembly includes a connecting arm, a clamping seat, two bow-shaped bars, and an elastic member, one end of the connecting arm is connected to the first chain, and the other end of the connecting arm is sleeved with the clamping seat, The holder is made of rubber, and includes two clamping pieces that can be opened and closed. The middle parts of the two arched bars can be rotatably connected to the two sides of the connecting arm, and one end of the two arched bars is respectively connected to the clamping pieces, and the other end is provided with a roller. The two ends of the elastic member are connected to the two arched bars to form an elastic force barrier when the two arched bars are brought together. Two side-by-side L-shaped limit plates are provided on the crossbeam, in front of and below the travel frame, and the two L-shaped limit plates are used to allow the two arched bars to rotate and close after entering. Two sets of main wheel assemblies, the main wheel assemblies include main wheels, the two sets of main wheel assemblies are respectively arranged at both ends of the main beam in an adjustable manner in height, the main wheels are coaxially connected with a second chain, the second chain is also connected to one end of a transmission shaft that spans above the crossbeam and is rotatably arranged, the other end of the transmission shaft is connected to a third chain, and the third chain is also connected to any one of the sprockets; Two sets of plowing assemblies, which are arranged below the crossbeam and in front of the bottom of the travel frame, and are used to plow furrows during the forward movement; Two sets of soil-returning assemblies are located between the plowing assembly and the sowing mechanism, and are used to move and backfill the soil on both sides of the furrows created by the plowing assembly during the forward movement.

2. The traction-driven seeding device according to claim 1, characterized in that: The traction assembly comprises three traction rods arranged on the main beam, and the heads of the three traction rods are connected together to form a pyramid shape.

3. The traction-driven seeding device according to claim 1, characterized in that: The main wheel assembly also includes: A first connecting seat, the first connecting seat is installed at one end of the main beam, the transmission shaft passes through and is axially connected to the first connecting seat, the; A cover body, wherein the cover body covers the upper part of the main wheel and is rotatably connected to the main wheel, and the cover body is also rotatably connected to the first connecting seat; A screw rod, one end of which is fixed with a hand wheel and the shaft is connected to the first connecting seat, and the other end of which is connected to a nut seat located on the top of the cover body.

4. The traction-driven seeding device according to claim 1, characterized in that: The seeding device further includes two sets of auxiliary wheel assemblies respectively installed at one ends of the two cross beams away from the main beam. Each set of the auxiliary wheel assemblies includes two auxiliary wheels. Two connecting rods are respectively arranged on both sides of the two cross beams of the same set. One end of the auxiliary wheel is rotatably connected to the connecting rod, and the other end of the connecting rod is rotatably connected to one end of an L-shaped connecting plate. The L-shaped connecting plate is fixed to the cross beam, and the other end thereof is connected to the first shock absorber. The other end of the first shock absorber is connected to one end of the connecting rod facing the auxiliary wheel.

5. The traction-driven seeding device according to claim 4, characterized in that: The two auxiliary wheels are inclined towards each other.

6. The traction-driven seeding device according to claim 1, characterized in that: The tops of the two L-shaped limiting plates are bent away from each other.

7. The traction-driven seeding device according to claim 1, characterized in that: The elastic member is in a "Ji" shape. Its top clamps the clamping seat, and its two ends are respectively connected to the inner sides of the two bow-shaped strips.

8. The traction-driven seeding device according to claim 1, characterized in that: The plowing component includes: A plow, which is composed of two first plowing blades and one second plowing blade. The two first plowing blades are located between the two cross beams, and their tops are respectively limited above the cross beams. The front ends of the two first plowing blades are bent and closed to form an acute angle. The second plowing blade passes through the intersection of the two first plowing blades, and multiple clamping components pass between the two first plowing blades; A second shock absorber, one end of which is connected to a second connecting seat on the main beam, and the other end is connected to the plow.

9. The traction-driven seeding device according to claim 1, characterized in that: The soil-returning component includes two baffles. The two baffles are located on both sides of the two cross beams and their two ends are close to each other. Support rods are respectively arranged on both sides of the cross beam. Vertical rods are arranged on the tops of the baffles, and the vertical rods pass through a mounting block, and the mounting block is connected to the support rod in an adjustable stroke manner.

10. The traction-driven seeding device according to claim 1, characterized in that: Two seats are further arranged on the main beam.

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