CN214628086U

CN214628086U - Seeding device with pure mechanical structure

Info

Publication number: CN214628086U
Application number: CN202023099745.8U
Authority: CN
Inventors: 魏引焕; 桓源; 詹昊; 陶治宇; 刘辰辰; 段淑娜; 栾飞
Original assignee: Shaanxi University of Science and Technology
Current assignee: Hefei Minglong Electronic Technology Co ltd; Xinxing County Wuyeming Agricultural Technology Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-11-09
Anticipated expiration: 2030-12-21

Abstract

The utility model discloses a seeder of pure mechanical structure, including going into a seedling section of thick bamboo and frame, the side of frame is provided with first wheel, the export cover of going into a seedling section of thick bamboo is equipped with inserts a seedling section of thick bamboo, the welding has first convex body on the lateral wall of inserting a seedling section of thick bamboo, be provided with first elastic component between first convex body and the frame, be connected with the roller on the first convex body, roller intermittent type nature contact has the cam, the cross section of cam is oval structure, camshaft connection has driven gear, and driven gear meshing is connected with the driving gear, driving gear shaft is connected with the second band pulley, the transmission shaft transmission of second band pulley and first wheel is connected. The utility model discloses do not need numerous and diverse actuating system, only need simple mechanical mechanism, economical and practical, when labour saving and time saving, to the requirement reduction of topography, as long as can let first wheel rotate and insert a seedling section of thick bamboo and just can carry out work, application scope is wider.

Description

Seeding device with pure mechanical structure

Technical Field

The utility model belongs to the technical field of the agricultural, specifically belong to a seeder of pure mechanical structure.

Background

In recent years, national economy of China is steadily increasing, and the demand of the market for crops is increasingly multiplied. The seeder is a basic material foundation for ensuring agricultural production, the usage amount of the seeder is huge every year all over the world, but many shapes of the existing seeders are huge and are not suitable for the land in many mountain areas, and power ends need to be independently arranged for the seeders to work, particularly in the aspect of the mountain areas, the large-sized seeder is not suitable for a small part of remote areas, but a large amount of energy consumption also needs to be input, and the snowing frosting is more suitable for people who are eating in the remote mountain areas, so that the seeder which is suitable for various terrains and is economical and practical is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides a seeding device with a pure mechanical structure, which solves the problems that the prior art is applicable to a less terrain and the energy consumption of the seeding machine is large.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a seeder of pure mechanical structure, is including going into a seedling section of thick bamboo and frame, the side of frame is provided with first wheel, the export cover of going into a seedling section of thick bamboo is equipped with inserts a seedling section of thick bamboo, the welding has first convex body on the lateral wall of inserting a seedling section of thick bamboo, be provided with first elastic component between first convex body and the frame, be connected with the roller on the first convex body, roller intermittent type nature contact has the cam, the cross section of cam is oval structure, the camshaft is connected with driven gear, and driven gear meshing is connected with the driving gear, driving gear shaft is connected with the second band pulley, the transmission shaft transmission of second band pulley and first wheel is connected.

The roller bearing device further comprises a double-end stud, one end of the double-end stud penetrates through a positioning hole in the rack along the downward moving direction of the roller, the other end of the double-end stud penetrates through the first convex body, hexagonal nuts are screwed at two ends of the double-end stud, and the maximum outer diameter of each hexagonal nut is larger than the outer diameters of the positioning hole and the first convex body;

the first elastic part comprises a first spring, and the first spring is sleeved on the stud between the first convex body and the positioning hole.

Further, still be provided with the slider on the outer wall of a seedling section of thick bamboo, still be provided with the spout that is used for inserting the slider in the frame, the length of slider is greater than the displacement distance of a seedling section of thick bamboo.

Furthermore, two soil shifting gun heads are arranged at the outlet of the seedling transplanting barrel, a connecting body is arranged on the side wall of each soil shifting gun head, one end of a rivet is hinged to each connecting body, the other end of the rivet is fixedly connected with the side wall of the seedling transplanting barrel, one end of a second spring is further connected to each connecting body, the other end of the second spring penetrates through a second convex body arranged on the side wall of the seedling transplanting barrel, the other end of the second spring is connected with a swing rod, the swing rod is perpendicular to the seedling transplanting barrel, and the rivet is located between the second spring and the seedling transplanting barrel; the rack is provided with a blocking arm for blocking the displacement of the swing rod;

under the condition of no seeding, the two soil shifting gun heads are in closed contact.

Furthermore, the rack is also provided with a furrow opener, the furrow opener end of the furrow opener and the outlet of the seedling transplanting cylinder are positioned on the same propelling straight line, the furrow opener is positioned at the front end of the propelling direction of the rack, and the seedling transplanting cylinder is positioned at the rear end of the propelling direction of the rack.

Furthermore, a plurality of through holes are formed in the furrow opener, pin holes matched with the through holes in the furrow opener are formed in the rack, and the furrow opener adjusts the furrowing depth of the furrow opener through the plurality of through holes.

Furthermore, the seedling planting machine further comprises a fertilizing mechanism, the fertilizing mechanism is arranged between the furrow opener and the seedling feeding cylinder, the fertilizing mechanism is detachably connected with the rack, and the fertilizing mechanism and the furrow opener are located on the same rack pushing straight line.

Furthermore, the driving end shaft of the fertilizing mechanism is connected with a geneva mechanism, and the geneva mechanism is in transmission connection with the transmission shaft of the first wheel.

Further, still include gasoline engine and second wheel, the rear end at frame advancing direction is established to first wheel, the front end at frame advancing direction is established to the second wheel, the output shaft and the second wheel of gasoline engine are connected, gasoline engine and frame attach, the gasoline engine is located the head end of frame advancing direction.

Further, the outer diameter of the second wheel is larger than that of the first wheel, and the hub of the second wheel is of a solid structure.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

the utility model provides a seeding device with pure mechanical structure, which drives a driving gear to rotate by the rotating force of a first wheel driven by a second belt wheel, the driving gear drives a driven gear to rotate, the driven gear drives a cam to rotate, because the cam is an elliptical structure, the contact roller can be in clearance, thereby the roller generates the action of moving downwards, when the small diameter surface of the cam can not contact the roller, the roller is reset and supported to move upwards by a first elastic part, so that the cam completes the action of moving upwards and downwards, thereby the purpose of seeding on the ground at equal intervals is completed, the utility model has simple structure, realizes seeding and seedling transplanting by the movement of driving the whole seedling transplanting cylinder by the rotation of the first wheel, does not need a complex driving system, only needs a simple mechanical mechanism, is economical and practical, and when time and labor are saved, the requirement on the terrain is reduced, as long as the first wheel can rotate the seedling transplanting cylinder, the seeding can work can be carried out, the application range is wider.

Furthermore, the seedling transplanting barrel and the rack are matched through the sliding block and the sliding groove, so that the stable operation of the seedling transplanting barrel and the vertical rate of seedlings can be guaranteed, and the quality of seeding or seedling transplanting is higher.

Further, the design of rivet and the design of second spring and pendulum rod on the rifle head of stirring earth, keep off arm cooperation pendulum rod in the frame, keep off the arm and can stretch the second spring when hanging the pendulum rod, the rifle head of stirring earth is opened and is sowed or insert the seedling, when the cam contactless roller, first spring and second spring reset, the rifle head of stirring earth is closed, the opening and the closure of the rifle head of stirring earth have been accomplished through simple mechanical structure promptly, need not numerous and diverse actuating system, economic performance is stronger, and can guarantee seeding efficiency, and practicality is stronger.

Further, the utility model discloses an opener establishes at the front end of frame advancing direction, can dial out soil, has established good basis for the inserting soil of dialling the native rifle head, and the degree of depth of sowing as required adjusts the ditching degree of depth of opener, inserts a seedling section of thick bamboo and then need not use too much strength to insert soil, has also reduced the energy that inserts a seedling section of thick bamboo and need consume.

Furthermore, the fertilizer applicator is arranged on the frame, the burden of a fertilizer applicator is lightened, the fertilizer application is finished by pushing the frame to move, the required manpower is reduced, the furrow opener on the frame can lead the frame to expand the soil to form a fertilizer application ditch when the frame is pushed, the fertilizer can not be directly sprayed on the soil surface, the nitrogen fertilizer can be volatilized to influence the environment, and the phosphorus potassium fertilizer can not be easily absorbed on the soil surface, the fertilizer can be directly buried in the fertilizer application ditch arranged on the furrow opener to ensure that the nutrient of the fertilizer can be fully absorbed by the soil, the utility model has the advantages of simple structure, convenient operation, high working efficiency, lower requirement on the use environment, wider application range, and the sheave mechanism can realize the effect of the equidistant fertilizer application of the fertilizer applicator to achieve the aim of precise fertilizer application, and integrates the functions of ditching, fertilizer application and seedling insertion into a whole, various functions and various function combinations can be flexibly selected for use, and the application range is wider.

Further, the utility model discloses still be provided with the second wheel in the midframe, the second wheel is controlled through the gasoline engine and is rotated, has reduced the needs of the manpower of fertilizeing more, only need adjust fertilize the direction can, and only drive the second wheel through the gasoline engine, the cost is also comparatively cheap, the economic level of more peasant households has fully been considered, and simultaneously, the gasoline engine sets up at the front end of frame advancing direction, the weight of frame advancing direction front end has been increased, make the work efficiency of furrow opener higher.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 1;

FIG. 3 is a schematic structural view of a fertilizing mechanism;

FIG. 4 is a schematic structural view of the inside of the fertilizing box;

FIG. 5 is a front cross-sectional view of FIG. 3;

FIG. 6 is a right sectional view of FIG. 3;

FIG. 7 is a schematic structural view of a seedling transplanting mechanism;

FIG. 8 is a schematic diagram of the right side view of FIG. 7;

FIG. 9 is a schematic view of the construction of the furrow opener;

in the drawings: 1-a frame, 2-a gasoline engine, 3-a second wheel, 4-a furrow opener, 5-a discharge port, 6-a first belt wheel, 7-a first wheel, 8-a transmission belt, 9-a handle, 10-a grooved wheel drive plate, 11-a driving gear, 12-a discharge port, 13-a fertilizing box, 14-a poking pin, 15-a grooved wheel, 16-a rotating shaft, 17-a disc, 18-an inner box body, 19-a fertilizer containing box, 20-a driven gear, 21-a cam, 22-a roller, 23-a seedling inserting barrel, 24-a swing rod, 25-a seedling inserting barrel, 26-a hexagonal bolt, 27-a hexagonal nut, 28-a double-end stud, 29-a first spring, 30-a second spring, 31-a rivet and 32-a soil poking gun head, 33-third belt wheel, 34-second belt wheel, 35-second baffle, 36-third spring, 37-adjusting nut, 38-connecting block, 39-annular piece.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

As shown in fig. 1 and 2, the utility model discloses a seeding device with pure mechanical structure, which comprises a frame 1 and a rotating shaft 16, wherein a fertilizing mechanism is arranged on the frame 1, the fertilizing mechanism comprises an integrally formed discharging port 12, a fertilizing box 13 and a discharging port 5, an inner box body 18 is arranged in the fertilizing box 13, the rotating shaft 16 penetrates through the fertilizing box 13 and the inner box body 18, the rotating shaft 16 is used for driving the inner box body 18 to rotate in the fertilizing box 13, a plurality of fertilizing boxes 13 for receiving fertilizer put in from the discharging port 12 or discharging fertilizer from the discharging port 5 are arranged in the rotating direction of the inner box body 18, and the input end of the rotating shaft 16 is connected with a power driving device;

still set up furrow opener 4 on the frame 1, furrow opener 4 and fertilizing mechanism all set up in the advancing direction of frame 1 and the ditching end of furrow opener 4 and fertilizing mechanism's discharge gate 5 are in same propulsion straight line, furrow opener 4 sets up the place ahead at fertilizing mechanism.

Specifically, as shown in fig. 3 and 4, an end cover of a fertilizing box 13 in the fertilizing mechanism is fixed on a rack 1 through a hexagon bolt 26, an input end of a rotating shaft 16 extends to the side surface of the rack 1, the rotating shaft 16 is connected with a disc 17 through a flange coupling, and the disc 17 and the inner wall of the fertilizing box 13 form an inner box body 18; the input end of the rotating shaft 16 is connected with a groove wheel mechanism, the groove wheel mechanism transmits the power of the third belt wheel 33 to realize the rotation of the rotating shaft 16, the inner box body 18 comprises a first baffle, a second baffle 35 and a ring-shaped part 39, the first baffle and the second baffle 35 are arranged in an inner ring of the ring-shaped part 39, and the ring-shaped part 39 is provided with a plurality of positioning grooves; the inner circular disc 17 in the area enclosed by the first baffle plate, the second baffle plate 35 and the inner ring of the ring-shaped piece 39 is arranged in the area, the fertilizer containing box 19 is put in from the positioning groove, then the bottom of the fertilizer containing box 19 is provided with a connecting rod, the connecting rod is inserted into the arc-shaped hole through a spline, the spline is led out onto the second baffle plate 35, the second baffle plate 35 is also provided with a plurality of radial slideways, the spline is led out to the radial slideways on the second baffle plate 35 to be connected with a knob, the knob controls the fastening or loosening of the spline on the circular disc 17, so that the spline is driven to slide on the radial slideways through the knob, the position of the fertilizer containing box 19 in the arc-shaped hole is controlled by the knob to change the distance from the bottom surface of the fertilizer containing box 19 to the top opening of the positioning groove and change the fertilizer containing amount between the fertilizer containing box 19 and the top opening of the positioning groove, the rotating shaft 16 penetrates through the first baffle plate, the circular disc 17 and the second baffle plate 35 in turn from the fertilizer applying box 13 and then penetrates out from the fertilizer applying box 13, the rotating shaft 16 rotates to drive the disc 17 to rotate, the disc 17 drives the fertilizer containing box 19 to rotate in the inner cavity of the fertilizer application box 13, the fertilizer containing box 19 is a box body with an opening at one end, when the fertilizer containing box 19 rotates, the opening of the fertilizer containing box 19 rotates to the discharge hole 12, the fertilizer containing box 19 receives fertilizer put in the discharge hole 12, and then when the fertilizer containing box 19 rotates to the discharge hole 5, the fertilizer is released from the discharge hole 5; wherein the rotation shaft 16 directly passes through the fertilizing box 13, the first baffle, the disc 17 and the second baffle 35, as shown in fig. 5 and fig. 6, an adjusting shaft is integrally formed on the disc 17, the adjusting shaft is sleeved on the rotation shaft 16, one end of the adjusting shaft extends out of the fertilizing box 13, a plurality of convex connecting blocks are arranged on the outer wall of the adjusting shaft, an adjusting nut 37 is further sleeved on the rotation shaft 16, connecting block grooves which are matched with the connecting blocks 38 one by one are arranged in an inner cavity at one end of the adjusting nut 37, a convex block pointing to the circle center of the adjusting nut 37 is arranged in an inner cavity at the other end of the adjusting nut 37, a slide way for the convex block to slide is arranged on the rotation shaft 16, a third spring 36 is further arranged between the adjusting nut 37 and the grooved wheel 15, the third spring 36 is sleeved on the rotation shaft 16, the whole inner box body 18, the disc 17 and the fertilizer containing box 19 are arranged in the inner cavity of the fertilizing box 13, an opening is arranged on one side wall of the fertilizing box 13, the baffle plate is detachably connected with the opening of the fertilizing box 13 through the baffle plate, when the fertilizing amount in the fertilizing box 13 needs to be adjusted, the baffle plate on the side wall of the fertilizing box 13 is opened, then the knob is unscrewed, then the adjusting nut 37 is pulled to enable the convex block on the adjusting nut 37 to slide along the slide way of the rotating shaft 16, the adjusting nut 37 moves towards the grooved wheel 15, the connecting block groove on the adjusting nut 37 is separated from the connecting block 38 on the adjusting shaft, the third spring 36 is compressed, the adjusting shaft is manually rotated to drive the disc 17 to rotate, after the fertilizer containing box 19 and the positioning groove meet the requirement, the adjusting nut 37 is released, the third spring 36 is reset to push the adjusting nut 37 to move towards the disc 17, the convex block of the adjusting nut 37 slides in the slide way of the rotating shaft 16, the connecting block groove on the adjusting nut 37 slides on the connecting block 38 of the adjusting shaft to coat the connecting block 38, the connecting block 38 is limited in the connecting block groove of the adjusting nut 37, then the shielding plate is connected with the fertilizing box 13, the rotating shaft 16 rotates to drive the adjusting nut 37 to rotate, the adjusting nut 37 drives the disc 17 to rotate, when the opening of the fertilizer containing box 19 rotates to the discharging port 12, the fertilizer containing box 19 receives fertilizer thrown in by the discharging port 12, and then when the fertilizer containing box 19 rotates to the discharging port 5, the fertilizer is released from the discharging port 5; wherein, the arc hole can set up a plurality ofly, and a plurality of arc hole annular array arranges on disc 17, has seted up four arc holes on the disc 17 in this embodiment, contains fertile box 19 and is provided with four.

In this embodiment, the geneva mechanism includes geneva dial 10, pulling pin 14 and geneva 15, the input end of geneva 15 and rotation axis 16 passes through the flat key and connects, geneva dial 10 and third band pulley 33 pass through the hub connection, there is pulling pin 14 on the geneva dial 10, pulling pin 14 stretches into the open slot of geneva 15, the third band pulley 33 drives geneva dial 10 to rotate, geneva dial 10 drives pulling pin 14 to rotate, pulling pin 14 enters or slips out the open slot of geneva 15 constantly, thus drive rotation axis 16 to rotate intermittently, make the whole internal container 18 rotate intermittently in the fertilizer container 19, achieve the goal of fertilizing at equal intervals;

specifically, the third belt wheel 33 rotates to drive the grooved wheel driving plate 10 to rotate, the driving pin 14 on the grooved wheel driving plate 10 drives the grooved wheel 15 to enable the grooved wheel 15 to intermittently drive the rotating shaft 16 to rotate, the rotating shaft 16 drives the disc 17 to rotate, and the disc 17 drives the fertilizer containing box 19 to intermittently rotate in the fertilizer application box 13.

In a preferred embodiment of the present embodiment, as shown in fig. 7 and 8, the multifunctional fertilizing apparatus further includes a seedling transplanting mechanism, wherein the seedling transplanting mechanism includes a driving gear 11, a driven gear 20, a cam 21, a roller 22, a seedling transplanting cylinder 23, a seedling feeding cylinder 25, a stud bolt 28, a first spring 29, a swing rod 24, a second spring 30, a rivet 31, a soil shifting gun head 32 and a second pulley 34; the seedling inlet cylinder 25 is sleeved on the flange plate, the seedling inlet cylinder 25 is connected with the rack 1 through the flange plate, the flange plate is connected with the rack 1 through the hexagon bolt 26, a seedling outlet of the seedling inlet cylinder 25 is sleeved in a seedling inlet of the seedling inserting cylinder 23, a slide block is integrally formed on the outer wall of the seedling inserting cylinder 23 close to the seedling outlet of the seedling inserting cylinder 23, a slide groove is arranged on the rack 1, the slide block of the seedling inserting cylinder 23 is inserted into the slide groove so as to connect the seedling inserting cylinder 23 with the rack 1 in a sliding manner, in addition, the seedling inserting cylinder 23 is driven by the driving gear 11, the driven gear 20, the roller 22, the cam 21 and the stud 28 to slide up and down, specifically, the driving gear 11 is connected with the second belt wheel 34, the second belt wheel 34 rotates to drive the driving gear 11 to rotate, the driving gear 11 is meshed with the driven gear 20, the driven gear 20 is connected with the cam 21 through the shaft, the driven gear 20 drives the cam 21 to rotate, the rotating plane of the cam 21 contacts with the roller 22, wherein the cross section structure of the cam 21 is an oval structure, the roller 21 is driven to rotate, the roller 21 is arranged on the side edge of the seedling inserting cylinder 23, a first convex body is arranged on the side edge of the seedling inserting cylinder 23, the roller 21 is arranged on the first convex body, a stud 28 is also penetrated into the first convex body, one end of the stud 28 penetrates through the first convex body and then is screwed on the end surface of the stud 28 through a hexagon nut 27, a first spring 29 is sleeved on the stud 28, the other end of the stud 28 penetrates through a limiting hole in the rack 1 and then is screwed into the hexagon nut 27, the diameter of the first spring 29 is larger than that of the limiting hole, and the cam 21 pushes the roller 22 to move up and down, so that the seedling inserting cylinder 23 is driven to move up and down, and seedling inserting action is completed; in this embodiment, a seedling emergence opening of the seedling transplanting barrel 23 is provided with a soil shifting gun head 32, a connecting body is symmetrically arranged on the side edge of the soil shifting gun head 32, a rivet 31 is hinged on the connecting body, the non-hinged end of the rivet 31 is fixed on the seedling transplanting barrel 23, a second spring 30 is further arranged on the connecting body, one end of the second spring 30 is connected on the connecting body, the other end of the second spring 30 passes through a second convex body arranged on the seedling transplanting barrel 23 and is connected with a swing rod 24, the rivet 31 is arranged between the second spring 30 and the seedling transplanting barrel 23, the position of the hinged rivet 31 on the connecting body is the circle center of the opening and closing action of the soil shifting gun head 32, the soil shifting gun head 32 is in a conical structure in the closed state of the soil shifting gun head 32, the seedling transplanting barrel 23 moves downwards, the soil shifting gun head 32 is inserted into the ground, a blocking arm matched with the swing rod 24 is arranged on the stand 1, when the seedling transplanting barrel 23 moves downwards, the first spring 29 is compressed due to the limiting hole, the swing rod 24 is hung on the blocking arm so as to be elongated, the second spring 30 pulls the soil shifting gun head to gradually open towards two sides, the soil shifting and seedling placing are realized, after the seedlings are placed, the seedling transplanting barrel 23 moves upwards, the first spring 29 rebounds to drive the seedling transplanting barrel 23 to move upwards, the swing rod 24 is separated from the blocking arm, the second spring 30 resets, and the soil shifting gun heads 32 are combined.

Specifically, the second belt wheel 34 rotates to drive the driving gear 11 to rotate, the driving gear 11 drives the driven gear 20 to rotate, the driven gear 20 drives the cam 21 to rotate, the cam 21 drives the roller 22 to move up and down, the roller 22 drives the seedling transplanting barrel 23 to move down when moving down, the first spring 29 is compressed, the swing rod 24 moves down along with the seedling transplanting barrel 23, the swing rod 24 touches the blocking arm and then can pull the soil shifting gun head 32 to swing by a certain angle, the soil shifting gun head 32 can be opened, and soil shifting and seedling releasing are achieved.

In this embodiment, the rack 1 is further provided with two first wheels 7, in this embodiment, the two first wheels 7 are connected through a transmission shaft, the transmission shaft between the first wheels 7 is provided with a first belt wheel 6 in a sleeved manner, when the rack 1 is pushed to advance, the first wheels 7 rotate to drive the first belt wheel 6 to rotate, the first belt wheel 6, a second belt wheel 34 and a third belt wheel 33 are in transmission connection through a transmission belt 8, the transmission belt 8 in this embodiment is a V-shaped transmission belt, preferably, the rack 1 is further provided with two second wheels 3, the two second wheels 3 are arranged on the front end of the first wheels 7, the gasoline engine 2 is arranged above the second wheels 3, the gasoline engine 2 drives the second wheels 3 to rotate, and the gasoline engine 2 also provides a certain downward pressing force for the front end of the rack 1; the frame 1 is also provided with a handle 9 to conveniently control the propelling direction of the frame 1, in the embodiment, the handle 9 is arranged at the rear end of the whole propelling direction of the frame 1, and the propelling direction of the frame 1 is controlled through the handle 9;

in this embodiment, as shown in fig. 9, the ditching end of the ditcher 4, the discharge hole 12 of the fertilizing mechanism and the seedling outlet of the seedling inserting mechanism are all located on the same propelling line, the ditcher 4 is connected with the rack 1 through a cylindrical pin, a plurality of through holes are formed in the ditcher 4, pin holes are formed in the rack 1, and ditching depth adjustment of the ditcher 4 is realized by adjusting the position where the cylindrical pin is inserted into the through holes.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A seeding device with a pure mechanical structure is characterized by comprising a seedling inlet cylinder (25) and a machine frame (1), a first wheel (7) is arranged on the side edge of the frame (1), a seedling inserting cylinder (23) is sleeved at the outlet of the seedling inserting cylinder (25), a first convex body is welded on the side wall of the seedling transplanting cylinder (23), a first elastic part is arranged between the first convex body and the frame (1), the first convex body is connected with a roller (22), the roller (22) is intermittently contacted with a cam (21), the cross section of the cam (21) is of an elliptical structure, the cam (21) is connected with a driven gear (20) through a shaft, the driven gear (20) is connected with a driving gear (11) in a meshing way, the driving gear (11) is in shaft connection with a second belt wheel (34), and the second belt wheel (34) is in transmission connection with a transmission shaft of the first wheel (7).

2. The sowing apparatus with a purely mechanical structure as claimed in claim 1, further comprising a stud (28), wherein one end of the stud (28) passes through the positioning hole on the machine frame (1) along the downward moving direction of the roller (22), the other end of the stud (28) passes through the first convex body, both ends of the stud (28) are screwed with hexagonal nuts (27), and the maximum outer diameter of the hexagonal nut (27) is larger than the outer diameters of the positioning hole and the first convex body;

the first elastic piece comprises a first spring (29), and the first spring (29) is sleeved on the stud (28) between the first convex body and the positioning hole.

3. A sowing apparatus of purely mechanical construction according to claim 1, wherein the outer wall of the seedling-inserting tube (23) is further provided with a slide block, the machine frame (1) is further provided with a slide groove for inserting the slide block, and the length of the slide block is greater than the displacement distance of the seedling-inserting tube (23).

4. A sowing device with a purely mechanical structure as claimed in claim 1, wherein the outlet of the seedling transplanting cylinder (23) is provided with two soil-shifting gun heads (32), the side walls of the soil-shifting gun heads (32) are provided with connecting bodies, one end of a rivet (31) is hinged on each connecting body, the other end of each rivet (31) is fixedly connected with the side wall of the seedling transplanting cylinder (23), one end of a second spring (30) is further connected on each connecting body, the other end of each second spring (30) penetrates through a second convex body arranged on the side wall of the seedling transplanting cylinder (23), the other end of each second spring (30) is connected with a swing rod (24), each swing rod is perpendicular to the seedling transplanting cylinder, and each rivet (31) is positioned between each second spring (30) and the seedling transplanting cylinder (23); a blocking arm for blocking the displacement of the swing rod (24) is arranged on the rack (1);

under the condition of no seeding, the two soil-shifting gun heads (32) are in close contact.

5. A sowing apparatus with a purely mechanical structure according to claim 1, wherein the machine frame (1) is further provided with a furrow opener (4), the furrow opening end of the furrow opener (4) and the outlet of the seedling inserting tube (23) are positioned on the same propelling line, the furrow opener (4) is positioned at the front end of the propelling direction of the machine frame (1), and the seedling inserting tube (23) is positioned at the rear end of the propelling direction of the machine frame (1).

6. A sowing apparatus with a purely mechanical structure as claimed in claim 5, wherein a plurality of through holes are arranged on the furrow opener (4), a pin hole matched with the through holes on the furrow opener (4) is arranged on the machine frame (1), and the furrow opener (4) can adjust the furrowing depth of the furrow opener (4) through the plurality of through holes.

7. A sowing apparatus of purely mechanical construction according to claim 5, further comprising a fertilizing mechanism, which is arranged between the furrow opener (4) and the seedling feeding cylinder (25), the fertilizing mechanism being detachably connected to the machine frame (1), and the fertilizing mechanism and the furrow end of the furrow opener (4) being positioned on the same pushing line of the machine frame (1).

8. A sowing apparatus of purely mechanical construction according to claim 7, wherein the driving end shaft of the fertilizing mechanism is connected to a geneva gear, which geneva gear is in driving connection with the drive shaft of the first wheel (7).

9. A sowing apparatus with a purely mechanical structure according to claim 1, further comprising a gasoline engine (2) and a second wheel (3), wherein the first wheel (7) is arranged at the rear end of the propulsion direction of the frame (1), the second wheel (3) is arranged at the front end of the propulsion direction of the frame (1), the output shaft of the gasoline engine (2) is connected with the second wheel (3), the gasoline engine (2) is connected with the frame (1), and the gasoline engine (2) is positioned at the head end of the propulsion direction of the frame (1).

10. A sowing apparatus of purely mechanical construction according to claim 9, wherein the second wheel (3) has a larger outer diameter than the first wheel (7), and the hub of the second wheel (3) is of solid construction.