CN219555677U

CN219555677U - Sunflower head harvester

Info

Publication number: CN219555677U
Application number: CN202320773787.XU
Authority: CN
Inventors: 刘庆喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-04-10
Filing date: 2023-04-10
Publication date: 2023-08-22
Anticipated expiration: 2033-04-10

Abstract

The utility model relates to a sunflower head harvester, which comprises a tractor body, a harvesting mechanism and a power transmission mechanism and is characterized in that: the harvesting mechanism comprises a harvesting mechanism main body beam frame, the structures of the harvesting mechanism, which are positioned at two sides of a tractor body, are identical, a sunflower lifting mechanism is arranged on the inclined side of each right-angle trapezoid frame and consists of a main lifting mechanism and an auxiliary lifting mechanism, transverse rotary shifting forks are uniformly arranged on chains of the main lifting mechanism at intervals, two sunflower rod gathering fork arms are connected at the front end of the main lifting mechanism, a sunflower rod gathering roller is arranged at the upper part of the front end of each sunflower rod gathering fork arm, a disc saw blade is arranged below the rear sections of the two sunflower rod gathering fork arms, and a sunflower disc rod separating mechanism is arranged at the rear parts of the right-angle trapezoid frames. The advantages are that: harvesting is smooth without blocking, sunflower stems can be separated from the sunflower packing parts, no seed loss occurs, and the mixing of bad seeds and good seeds is avoided.

Description

Sunflower head harvester

Technical Field

The utility model relates to a sunflower head harvester, and belongs to the technical field of sunflower harvesters in agricultural machinery.

Background

The planting area of sunflowers in north of China is very large, the harvesting time is only about 20 days each year, and the time limit of harvesting is tight and the intensity is high. When the sunflower combine harvester harvests the sunflower, the sunflower seeds are peeled off from the sunflower disc and finally conveyed to a transportation vehicle which walks synchronously. The sunflower combine harvester has high mechanization degree and harvesting efficiency, can harvest seeds at one time, and is the preferred harvesting machine for a large number of large planting households. However, there are also significant drawbacks to using sunflower combine: (1) The seeds and the pulp are not separated cleanly, so that a large number of melon seeds can be discharged, commonly called as falling seeds, and waste is great; (2) Certain abrasion can be caused to the outer shells of the melon seeds in the process of separating seeds from pulp to influence the quality of the melon seeds, and selling price can be influenced to flower sunflower; (3) The sunflower seeds with a certain quantity of spoiled sunflower seeds are grown in the process of growing, and the sunflower discs with spoiled sunflower seeds are not required, but the sunflower combine harvester can not distinguish the quality of the sunflower seeds and harvest all the time in the harvesting process, and finally the recycled sunflower seeds are mixed with a certain quantity of bad sunflower seeds, so that the quality of the whole sunflower seeds is affected. When the proportion of damaged melon seeds doped in melon seeds reaches a certain proportion, large melon seed purchasing enterprises are not harvested. The above-mentioned drawbacks of sunflower combine-harvester have caused many growers to have to discard the combine-harvester and to use manual harvesting. The manual harvesting is generally that the harvesting hands with strong annual rich harvesting experience are used for cutting the sunflower discs by a very sharp hacking knife, then the cut sunflower discs are inserted on the sunflower stems by the opposite hands, and then the sunflower discs are harvested one by other people. The manual harvesting efficiency is low, the labor intensity is high, the cost is high, but the advantages are that: the waste is small, the sunflower discs can be manually screened one by one, and bad sunflower discs are removed, so that the quality of the melon seeds is ensured.

In order to solve the problems of low manual harvesting efficiency, high labor intensity and high cost, in particular to the problems of large seed falling amount and incapability of separating the mixture of bad seeds and good seeds in mechanical harvesting, the inventor has studied for a long time that the mechanical harvester can replace a manual harvesting sunflower disc and applied for the name of the mechanical harvester in 2015: an utility model patent of a harvester for harvesting sunflower discs and stalks, patent number: 2015210031383. however, in experiments, this patent has found a number of problems, such as: (1) The front part of the conveying guide plate cannot collect all grown sunflowers into the guide groove of the conveying guide plate at all for effective cutting; (2) The front harvesting saw blade is unreasonably arranged, and the collected sunflower stems cannot be cut off efficiently; (3) When the sunflower with the sunflower stalk cut off moves upwards along the guide groove of the conveying guide plate, not only the sunflower disk is not in the same direction, but also the sunflower stalk cannot fall down, so that the sunflower disk is lifted by high and cannot fall on the conveying guide plate; (4) When the sunflower with the sunflower stalk cut off moves upwards to the highest point of the herringbone conveying guide plate along the guide groove of the conveying guide plate, retention is formed, so that a plurality of sunflowers form accumulation at the highest point of the herringbone conveying guide plate and cannot move backwards continuously; (5) The harvesting saw blade arranged at the rear part of the herringbone conveying guide plate can not cut off the sunflower stems of the sunflower discs. The existence of these problems renders the technology of this patent not practical at all.

Disclosure of Invention

The utility model aims to overcome the defects of the patent 2015210031383 and provide the sunflower disc harvester which has the advantages of reasonable structure, smooth harvesting and high harvesting efficiency, can completely replace manual harvesting of sunflower discs, and has no seed falling, no bad seed and good seed mixing and no separation problem.

The object of the utility model is achieved by the following means:

the utility model comprises the following steps: tractor automobile body, harvesting mechanism, power transmission mechanism, characterized by: the harvesting mechanism comprises a harvesting mechanism main body beam frame, the harvesting mechanism main body beam frame consists of two right trapezoid frames which are arranged in parallel and a rectangular vertical frame which connects the two right trapezoid frames together from the rear part, two sides of a tractor body are respectively provided with a set of harvesting mechanism main body beam frame, the lower part of the rectangular vertical frame is connected with a transverse steel beam at the rear part of the tractor body, and the right trapezoid frames are connected with a transverse steel beam at the front part of the tractor body; the structure of the harvesting mechanism, which is positioned at two sides of the tractor body, is completely the same, a sunflower lifting mechanism is arranged on the hypotenuse of each right trapezoid frame, the sunflower lifting mechanism consists of a main lifting mechanism and an auxiliary lifting mechanism, the main lifting mechanism consists of a sunflower lifting supporting plate and a main lifting chain wheel group, the sunflower lifting supporting plate consists of two rectangular long plates which are symmetrically arranged at intervals from side to side, and a guide groove is formed between the two long plates; the main lifting chain wheel sets are arranged in two sets, one set is arranged below each long plate, the driven wheel of the main lifting chain wheel set is positioned below the front end of each long plate, the driving wheel is positioned below the tail end of each long plate, and the chains of the main lifting chain wheel sets run in a plane parallel to the plate surface of each long plate; the auxiliary lifting mechanism consists of two sets of auxiliary lifting chain wheel groups, wherein the two sets of chains are mutually parallel and all run in a longitudinal plane, the auxiliary lifting mechanism is connected with the main lifting mechanism, two driven wheels of the auxiliary lifting mechanism are positioned in a channel between two driving wheels of the main lifting mechanism, and the two driving wheels of the auxiliary lifting mechanism are positioned at the top of the inclined edge of the right-angle trapezoid frame; the chain of the main lifting mechanism is uniformly provided with transverse rotary shifting forks at intervals, and the chain of the auxiliary lifting mechanism is uniformly provided with longitudinal fixed shifting blocks at intervals; two sunflower rod gathering fork arms with front sections distributed in an eight shape and rear sections parallel to each other are connected at the front end of the main lifting mechanism, a group of sunflower rod gathering chain wheel sets are arranged at the upper part of each sunflower rod gathering fork arm, transverse shifting forks are uniformly arranged on chains of the sunflower rod gathering chain wheel sets at intervals, a sunflower rod gathering roller is arranged at the upper part of the front end of each sunflower rod gathering fork arm, a shaft at one end of each sunflower rod gathering roller is connected with a shaft of a front driven wheel of the sunflower rod gathering chain wheel set through a universal joint, the two rollers are distributed in an eight shape, two left and right disc saw blades which can horizontally rotate are arranged below the rear sections of the two sunflower rod gathering fork arms, and the two disc saw blades are staggered up and down, and the orthographic projections of the two disc saw blades form overlapping at the inner side; the sunflower disc pushing device comprises two sets of sunflower disc pushing chain wheel groups which are mutually parallel and all run in a longitudinal plane, longitudinal fixed shifting blocks are uniformly spaced on the chains of the sunflower disc pushing device, two driving wheels of the sunflower disc pushing device are respectively coaxial with two driving wheels of the auxiliary lifting mechanism, two driven wheels are positioned at the rear part of the right angle edge at the upper part of the right angle trapezoid frame, the sunflower disc pulling device comprises two pairs of horizontally arranged roller pairs, a front-wide and rear-narrow acute angle gap is reserved between the two rollers, and the symmetrical center lines of the two rollers and the symmetrical center lines of the two sets of chain wheel groups of the sunflower disc pushing device are positioned on the same vertical plane.

The power transmission mechanism comprises an engine of a tractor, a walking gearbox of the tractor, a clutch, a main bevel gear box for driving a saw blade, a sunflower rod gathering chain wheel set, a transmission gearbox, a main driving shaft, a roller driving bevel gear box, a main lifting mechanism bevel gear box, a main lifting chain wheel set, an auxiliary lifting chain wheel set and a sunflower disc pushing chain wheel set, wherein the main driving shaft is arranged on a rectangular vertical frame at the rear part of a beam frame of the two sets of harvesting mechanism main bodies through a bearing and a bearing support seat, the main belt pulley of the engine is respectively connected with a belt pulley for driving the clutch and a walking belt pulley of the tractor through a belt, a forward transmission driving wheel and a backward transmission driving wheel are arranged on a main shaft of the clutch, the forward transmission driving wheel is connected with a transition chain wheel through a chain, the transition chain wheel is connected with an input shaft chain wheel for driving the main bevel gear box of the saw blade through a chain, belt pulleys on two output shafts of the main bevel gear box of the saw blade driving the saw blade are respectively connected with belt pulleys on a disc saw blade shaft through a triangular belt, and the disc saw blade shaft is provided with a second belt pulley; the backward transmission driving wheel is connected with an input chain wheel of a transmission gear box by a chain, an output chain wheel of the transmission gear box is connected with a main driving chain wheel fixed in the middle of a main driving shaft by a chain, an auxiliary driving chain wheel on the main driving shaft is fixed at the end part of the main driving shaft corresponding to the middle position of a rectangular vertical frame, a rotating shaft is arranged on the rectangular vertical frame by a bearing, a driven wheel of the auxiliary driving chain wheel on the main driving shaft is fixed in the middle of the rotating shaft, the auxiliary driving chain wheel on the main driving shaft is connected with driven wheels of the auxiliary driving chain wheel on the main driving shaft by the chain, two ends of the rotating shaft are respectively fixed with a main driving small chain wheel, a roller driving bevel gear box is respectively fixed on the upper parts of two longitudinal beams of the rectangular vertical frame, a rotating shaft is arranged at the joint of a bevel beam and a right angle side beam of each right angle trapezoid frame of a main body frame of the harvesting mechanism by a supporting seat and a bearing, an auxiliary lifting mechanism, a driving wheel of a sunflower disc pushing device, a driving wheel of a bevel gear box of a main lifting mechanism, a driving wheel of the auxiliary lifting mechanism and a driving wheel of the sunflower disc pushing device are sequentially fixed on the rotating shaft from outside to inside at intervals, a main driving small chain wheel is connected with a roller driving chain wheel arranged on an input shaft of the roller driving bevel gear box, the auxiliary lifting mechanism and the driving wheel of the sunflower disc pushing device through chains, the driving wheel of the bevel gear box of the main lifting mechanism is connected with a power input wheel of the bevel gear box of the main lifting mechanism through chains, the driving wheel of the auxiliary lifting mechanism is connected with a driven wheel of the auxiliary lifting mechanism through chains, and the driving wheel of the sunflower disc pushing device is connected with a driven wheel of the sunflower disc pushing device arranged on a tail rotating shaft of a right-angle side beam; the driving wheel of the main lifting chain wheel group is connected with the driven wheel of the main lifting chain wheel group through a chain, the lower end of the driven wheel shaft of the main lifting chain wheel group is connected with the upper end of the driving wheel shaft of the sunflower rod gathering chain wheel group through a universal joint, and the upper end of the driven wheel shaft at the front end of the sunflower rod gathering chain wheel group is connected with the shaft at the lower end of the sunflower rod gathering roller through the universal joint.

The tractor body adopts a crawler tractor;

the engine of the tractor is a diesel engine;

the harvesting mechanism body beam frame can be fixedly connected with the tractor body, or can be a right trapezoid frame which is connected with the front transverse steel beam of the tractor body through a hydraulic cylinder, and the lower part of the rectangular vertical frame is connected with the rear transverse steel beam of the tractor body through a hinge;

the transverse rotation shifting fork consists of a transverse rotation shifting fork main shaft and a transverse rotation shifting fork rotatable sleeve, one end of the transverse rotation shifting fork main shaft is fixedly connected with the chain, and the transverse rotation shifting fork rotatable sleeve is sleeved on the transverse rotation shifting fork main shaft and can rotate freely around the main shaft;

the main lifting chain wheel group not only comprises a driving wheel and a driven wheel, but also comprises a chain tensioning wheel;

when the main lifting chain wheel sets run, a transverse rotation shifting fork positioned on the opposite sides (inner sides) of the chains of the two main lifting chain wheel sets is positioned below the middle guide groove of the sunflower lifting supporting plate;

the driving wheel of the sunflower stem gathering chain wheel set is arranged at the upper part of the intersection of the front section and the rear section of the sunflower stem gathering fork arm, the driven wheel is arranged at the upper part of the front end of the sunflower stem gathering fork arm, and the outer side of the middle part of the front section of the sunflower stem gathering fork arm is provided with a chain tensioning wheel;

a steel wire needle net is sleeved on a roller of the sunflower stem dragging device;

a conveyer belt device for transferring the sunflower discs is arranged below the tail part of the sunflower disc pushing device;

the conveyer belt device can be arranged along the walking direction of the tractor body or transversely.

The utility model has the advantages that: the sunflower stalk can be separated from the sunflower disc from the root connected with the sunflower disc, the whole sunflower disc is harvested, the harvesting efficiency is extremely high, the harvesting time is striven for, and the labor intensity and the harvesting cost of farmers are reduced; because threshing is not carried out, the recovered sunflower discs can be manually sorted, the mixing of bad seeds and good seeds is avoided, the quality of melon seeds is improved, and the seed falling loss in the threshing process by adopting a combine harvester is also avoided.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the present utility model with the sunflower lifting pallet removed;

FIG. 3 is a left side view of the present utility model with the sunflower lifting pallet removed;

fig. 4 is a schematic structural view of the power transmission mechanism (right side omitted) of the present utility model;

fig. 5 is a right side view of a left side portion of the power transmission mechanism of the present utility model;

FIG. 6 is a front view of the left side portion of the power transmission mechanism of the present utility model;

FIG. 7 is an enlarged partial view of the position of the sunflower stalk gathering yoke of the present utility model;

FIG. 8 is an enlarged partial view of the position of the auxiliary lift mechanism of the present utility model;

FIG. 9 is a schematic view of a rotary fork and chain securing structure of the present utility model;

fig. 10 is a schematic structural view of the sunflower disc stem separating mechanism of the present utility model.

In the figure: 1. a tractor body; 2. a harvesting mechanism; 3. a conveyor belt device; 4. the sunflower stems are folded into fork arms; 5. the sunflower stems are folded into rollers; 6. the sunflower stems are folded to form a chain wheel group; 7. a sunflower lifting pallet; 8. a guide groove; 9. a main lifting chain wheel group; 10. driving a saw blade main bevel gear box; 11. saw blade belt pulley protective cover; 12. a circular saw blade; 13. the sunflower stems furl the chains of the chain wheel sets; 14. a transverse shifting fork; 15. a chain of a main lifting chain wheel group; 16. a shifting fork is transversely rotated; 17. a sunflower disc pushing device; 18. a sunflower stem dragging device; 19. an inclined slide carriage; 20. an engine main pulley; 21. an engine; 22. a secondary drive sprocket on the primary drive shaft; 23. a main drive shaft; 24. a main drive sprocket; 25. a clutch; 26. a tractor walking belt pulley; 27. a driving wheel of the sunflower stem gathering chain wheel group; 28. driven wheels of the main lifting chain wheel group; 29. a main lifting mechanism bevel gear box; 30. an auxiliary lifting mechanism and a driving wheel of the sunflower disc pushing device; 31. a chain of the sunflower disc pushing device; 32. a longitudinal fixed shifting block on a chain of the sunflower disc pushing device; 33. driven wheels of the auxiliary drive sprocket on the main drive shaft; 34. a roller driving sprocket; 35. a main driving small chain wheel; 36. a tractor walking gear box; 37. a transition sprocket; 38. forward conveying the drive wheel; 39. a drive wheel is transmitted backwards; 40. a clutch main shaft; 41. a transmission gear box; 42. roller driving bevel gear box; 43. a main lifting mechanism bevel gear box driving wheel; 44. a drive wheel of the auxiliary lifting mechanism; 45. a driving wheel of the sunflower disc pushing device; 46. a longitudinal fixed shifting block on the auxiliary lifting mechanism chain; 47. a power input wheel of a bevel gear box of the main lifting mechanism; 48. a driven wheel of the auxiliary lifting mechanism; 49. a shifting fork main shaft is transversely rotated; 50. a transverse rotary shifting fork rotatable sleeve; 51. the sunflower rod draws in the front driven wheel of the chain wheel group.

Description of the embodiments

Since the structure of the harvesting mechanism on both sides of the tractor body is identical, only the harvesting mechanism structure and the power transmission mechanism on the left side of the tractor body will be described in detail:

referring to fig. 1, 2, 3, 9, the present utility model includes: the harvester comprises a tractor body 1, a harvesting mechanism 2 and a power transmission mechanism, wherein the tractor body adopts a crawler tractor, the harvesting mechanism comprises a harvesting mechanism body beam frame, the harvesting mechanism body beam frame consists of two right trapezoid frames which are arranged in parallel and a rectangular vertical frame which connects the two right trapezoid frames together from the rear part, two sides of the tractor body are respectively provided with a set of harvesting mechanism body beam frame, the lower part of the rectangular vertical frame is connected with a transverse steel beam at the rear part of the tractor body, and the right trapezoid frame is connected with a transverse steel beam at the front part of the tractor body; the beam frame of the main body of the harvesting mechanism is fixedly connected with the tractor body, but the defect of the fixed connection is that the front part of the harvesting mechanism is fixed in height, and the front part of the harvesting mechanism can be knocked when walking due to the fact that the rural areas, particularly the roads in the fields, can have uneven places; therefore, the better structure is to connect the right trapezoid frame with the transverse steel beam at the front part of the tractor body through the hydraulic cylinder, namely: the hydraulic cylinder body is connected with the transverse steel beam at the front part of the tractor body, the hydraulic cylinder rod is connected with the right trapezoid frame, and meanwhile, the lower part of the rectangular vertical frame is connected with the transverse steel beam at the rear part of the tractor body through a hinge, so that the hydraulic cylinder rod can be lifted when harvesting is not carried out, the front part of the harvesting mechanism can be lifted by the hydraulic cylinder rod, and the collision of a pothole road section during walking is avoided. The structure of the harvesting mechanism, which is positioned at two sides of the tractor body, is completely the same, a sunflower lifting mechanism is arranged on the hypotenuse of each right trapezoid frame, the sunflower lifting mechanism consists of a main lifting mechanism and an auxiliary lifting mechanism, the main lifting mechanism consists of a sunflower lifting supporting plate 7 and a main lifting chain wheel group 9, the sunflower lifting supporting plate consists of two rectangular long plates which are symmetrically arranged at left and right and are mutually spaced, and a guide groove 8 is formed between the two long plates; the main lifting chain wheel sets are arranged in two sets, one set is arranged below each long plate, the driven wheel 28 of the main lifting chain wheel set is positioned below the front end of each long plate, the driving wheel 27 is positioned below the tail end of each long plate, and the chains 15 of the main lifting chain wheel sets run in a plane parallel to the surface of each long plate; the auxiliary lifting mechanism consists of two sets of auxiliary lifting chain wheel groups, wherein the two sets of chains are mutually parallel and all run in a longitudinal plane, the auxiliary lifting mechanism is connected with the main lifting mechanism, two driven wheels 48 of the auxiliary lifting mechanism are positioned in a channel between two driving wheels of the main lifting mechanism, and the two driving wheels of the auxiliary lifting mechanism are positioned at the top of the inclined edge of the right-angle trapezoid frame; the chain 15 of the main lifting mechanism is uniformly provided with transverse rotation shifting forks 16 at intervals, each transverse rotation shifting fork consists of a transverse rotation shifting fork main shaft 49 and a transverse rotation shifting fork rotatable sleeve 50, one end of each transverse rotation shifting fork main shaft is fixedly connected with the chain, and each transverse rotation shifting fork rotatable sleeve is sleeved on each transverse rotation shifting fork main shaft and can freely rotate around the corresponding main shaft; when the main lifting chain wheel sets run, the transverse rotary shifting forks positioned on the opposite sides (inner sides) of the chains of the two sets of main lifting chain wheel sets are positioned below the middle guide grooves of the sunflower lifting supporting plates; longitudinal fixed shifting blocks 46 are uniformly arranged on the chain of the auxiliary lifting mechanism at intervals; the front end of the main lifting mechanism is connected with two sunflower rod gathering fork arms 4 with the front sections distributed in an eight shape, the rear sections of the sunflower rod gathering fork arms are parallel to each other, the rear ends of the sunflower rod gathering fork arms are fixed with a longitudinal connecting rod arranged at the middle front part of a right trapezoid frame, a group of sunflower rod gathering chain wheel groups 6 are arranged at the upper part of each sunflower rod gathering fork arm, a driving wheel of each sunflower rod gathering chain wheel group is arranged at the upper part of the intersection of the front sections and the rear sections of the sunflower rod gathering fork arms, a driven wheel is arranged at the upper part of the front ends of the sunflower rod gathering fork arms, a chain tensioning wheel is arranged at the outer side of the middle part of the front sections of the sunflower rod gathering fork arms, transverse shifting forks 14 are uniformly arranged at intervals on a chain 13 of each sunflower rod gathering chain wheel group, a shaft at one end of each sunflower rod gathering chain roller is connected with a driven wheel 51 at the front end of each sunflower rod gathering chain wheel group through a universal roller joint, two saw blades are distributed in an eight shape, two saw blades can horizontally overlap each other, and two saw blades are arranged at the right sides of the rear sections of the two sunflower rod gathering fork arms in a right side of the sunflower rod gathering fork arms, and two saw blades can horizontally overlap each other, and the saw blades are projected on the saw blades are vertically and can vertically and horizontally overlap each saw blade; the sunflower disc rod separating mechanism is arranged on the right-angle edge of the upper part of each right-angle trapezoid frame and consists of a sunflower disc pushing device 17 and a sunflower disc rod dragging device 18 arranged below the sunflower disc pushing device, the sunflower disc pushing device consists of two sets of sunflower disc pushing chain wheel groups which are mutually parallel and all run in a longitudinal plane, longitudinal fixed shifting blocks 32 are uniformly arranged on the chains 31 of the sunflower disc pushing device at intervals, two driving wheels of the sunflower disc pushing device are respectively coaxial with the two driving wheels of the auxiliary lifting mechanism, two driven wheels are positioned at the rear part of the right-angle edge of the upper part of the right-angle trapezoid frame, the sunflower disc rod dragging device consists of two pairs of horizontally arranged rollers, an acute angle gap with a wide front part and a narrow rear part is reserved between the two rollers, the symmetrical center lines of the two rollers and the symmetrical center lines of the two sets of chain wheel groups of the sunflower disc pushing device are positioned on the same vertical plane, and steel wire needle meshes are sleeved on the rollers of the sunflower disc rod dragging device so as to increase the holding capacity of the rollers.

Referring to fig. 4, 5, 6, 7, 8 and 10, the power transmission mechanism comprises an engine 21 of a tractor, a walking gear box 36 of the tractor, a clutch 25, a main bevel gear box 10 for driving a saw blade, a sunflower rod gathering chain wheel set 6, a transmission gear box 41, a main driving shaft 23, a roller driving bevel gear box 42, a main lifting mechanism bevel gear box 29, a main lifting chain wheel set 9, an auxiliary lifting chain wheel set and a sunflower disc pushing chain wheel set, wherein the engine is a diesel engine, the main driving shaft is arranged on a rectangular vertical frame at the rear part of a beam frame of the two sets of harvesting mechanism main body through a bearing and a bearing support seat, the main driving shaft 20 is respectively arranged on a belt pulley of the clutch and a walking belt pulley 26 of the tractor through a belt, a forward transmission driving wheel 38 and a backward transmission driving wheel 39 are arranged on a main shaft 40 of the clutch, the forward transmission driving wheel is connected with a transition chain wheel 37 through a chain, the transition chain is connected with an input shaft chain of the main bevel gear box for driving the saw blade through a chain, two belt pulleys on two output shafts of the main bevel gear box are respectively connected with a belt pulley on a disc saw blade shaft through a triangle belt, a second belt pulley is arranged on the disc saw blade shaft, a belt pulley is connected with a protection disc pulley on the disc saw blade, and two-saw blades on the protection disc is connected with a saw blade belt pulley on the two-disc saw blade protection disc saw blade is capable of rotating in the same direction as saw blade rotation speed per disc 11. The backward transmission driving wheel is connected with an input sprocket of a transmission gear box 41 by a chain, an output sprocket of the transmission gear box is connected with a main driving sprocket 24 fixed in the middle of a main driving shaft by a chain, a secondary driving sprocket 22 on the main driving shaft is fixed at the middle position of a rectangular vertical frame corresponding to the end part of the main driving shaft, a rotating shaft is arranged on the rectangular vertical frame by a bearing, a driven wheel 33 of the secondary driving sprocket on the main driving shaft is fixed in the middle of the rotating shaft, the secondary driving sprocket on the main driving shaft is connected with driven wheels of the secondary driving sprocket on the main driving shaft by the chain, a main driving small sprocket 35 is respectively fixed at two ends of the rotating shaft, a roller driving bevel gear box 42 is respectively fixed at the upper parts of two longitudinal beams of the rectangular vertical frame, an output shaft of each roller driving bevel gear box is connected with one end of a roller of a sunflower rod dragging device by a universal joint, and the other end of the roller is connected with a connecting rod on a right-angle trapezoid frame by a bearing. A rotating shaft is arranged at the joint of the oblique side beam and the right-angle side beam of each right-angle trapezoid frame of a main body beam frame of the harvesting mechanism by a supporting seat and a bearing, an auxiliary lifting mechanism and a driving wheel 30 of a sunflower disc pushing device, a driving wheel 43 of a bevel gear box of the main lifting mechanism, a driving wheel 44 of the auxiliary lifting mechanism and a driving wheel 45 of the sunflower disc pushing device are sequentially fixed on the rotating shaft from outside to inside at intervals, a main driving small chain wheel is connected with a roller driving chain wheel 34 arranged on an input shaft of the roller driving bevel gear box and the driving wheels of the auxiliary lifting mechanism and the sunflower disc pushing device by chains, the driving wheel of the bevel gear box of the main lifting mechanism is connected with a power input wheel 47 of the bevel gear box of the main lifting mechanism by chains, and the driving wheel of the auxiliary lifting mechanism is connected with a driven wheel 48 of the auxiliary lifting mechanism by chains, and the driving wheel of the sunflower disc pushing device is connected with a driven wheel of the sunflower disc pushing device arranged on the tail rotating shaft of the right-angle side beam; the driving wheel of the main lifting chain wheel group is arranged on a power output shaft of an bevel gear box of the main lifting mechanism and is connected with the driven wheel of the main lifting chain wheel group by a chain, and the main lifting chain wheel group not only comprises the driving wheel and the driven wheel, but also comprises a chain tensioning wheel; the lower end of the driven wheel of the main lifting chain wheel group is connected with the upper end of the wheel shaft of the driving wheel 27 of the sunflower stem gathering chain wheel group by a universal joint, the upper end of the front driven wheel of the sunflower stem gathering chain wheel group is connected with the shaft of the lower end of the sunflower stem gathering roller by a universal joint, and the upper end of the sunflower stem gathering roller is connected with the upper end of a longitudinal strut arranged at the front section of the sunflower stem gathering fork arm by a bearing.

The tractor body of the utility model adopts a crawler tractor, which can adapt to the road conditions of any field, when not harvesting, the clutch is controlled to be separated through the pull rod of the clutch 25, and the main belt pulley 20 of the engine only drives the walking belt pulley 26 of the tractor to drive the walking gear box 36 of the tractor to work, so that the tractor is in a walking state. When harvesting, the clutch is controlled to be combined through the pull rod of the clutch 25, and at the moment, the main belt pulley 20 of the engine drives the belt pulley of the clutch and the walking belt pulley 26 of the tractor to work simultaneously, and the harvesting mechanism is operated at the same time when the tractor walks. The clutch main shaft 40 rotates to drive the forward transmission driving wheel 38 and the backward transmission driving wheel 39 to synchronously rotate, and the forward transmission driving wheel 38 drives the saw blade main gearbox 10 to work through the transition chain wheel 37 and the chain to drive the disc saw blade 12 to rotate. The backward transmission driving wheel 39 drives the transmission gear box 41 to work through a chain, the transmission gear box drives the main driving sprocket 24 to rotate through the chain so as to drive the main driving shaft 23 to synchronously rotate, the auxiliary driving sprocket 22 fixed on the main driving shaft synchronously rotates along with the main driving shaft, the auxiliary driving sprocket on the main driving shaft drives the driven wheel 33 of the auxiliary driving sprocket on the main driving shaft to rotate through the chain, the main driving small sprocket 35 coaxial with the driven wheel of the auxiliary driving sprocket on the main driving shaft synchronously rotates, and the main driving small sprocket drives the auxiliary lifting mechanism, the sunflower disc pushing device driving wheel 30 and the roller driving sprocket 34 to simultaneously rotate through the chain, and the roller driving sprocket drives the roller of the sunflower rod dragging device to rotate through the roller driving bevel gear box; the auxiliary lifting mechanism and the driving wheel 30 of the sunflower disc pushing device drive the coaxial main lifting mechanism bevel gear box driving wheel 43, the driving wheel 44 of the auxiliary lifting mechanism and the driving wheel 45 of the sunflower disc pushing device to synchronously rotate, the main lifting mechanism bevel gear box driving wheel drives the main lifting mechanism bevel gear box to work through a chain, and the driving wheel of the auxiliary lifting mechanism drives the driven wheel of the auxiliary lifting mechanism to rotate through the chain, namely: auxiliary lifting chain wheel set operation; the driving wheel of the sunflower disc pushing device drives the driven wheel of the sunflower disc pushing device to rotate through a chain, namely: the sunflower disc pushing device sprocket set runs; the main lifting mechanism bevel gear box drives the main lifting chain wheel set to work, the driven wheel 28 of the main lifting chain wheel set drives the driving wheel 27 of the sunflower stem gathering chain wheel set to rotate through a universal joint, so that the sunflower stem gathering chain wheel set operates, and the front end driven wheel 51 of the sunflower stem gathering chain wheel set drives the sunflower stem gathering roller to rotate through the universal joint.

When the utility model is used for harvesting, two groups of sunflower stems with the front sections at the front part of the harvesting mechanism are distributed in an eight shape, and each group just corresponds to two rows of sunflowers, namely: four rows of sunflowers can be harvested simultaneously. The tractor body moves forward, draws in roller 5 and sunflower pole through the pivoted sunflower pole and draws in horizontal shift fork 14 on the sprocket group in the sunflower pole and draws in disc saw bit 12 departments and cut off by the saw bit, and the sunflower dish of taking the pole is on the upward line along guide way 8 under the drive of the horizontal rotatory shift fork 16 on the main sprocket group that promotes, and at this moment, the sunflower dish of taking the pole is high difference, orientation is different, and shaping is carried out under self gravity and horizontal rotatory shift fork rotatory effect along with going up constantly, and the sunflower pole falls gradually, and finally the sunflower dish falls on the sunflower promotes the layer board. When the sunflower disc runs to the top of the sunflower lifting supporting plate, the sunflower disc continuously ascends and falls onto two chains of the auxiliary lifting chain wheel set, the sunflower disc continuously ascends along with the chains by the longitudinal fixed shifting block 46 on the chain of the auxiliary lifting mechanism, the sunflower disc falls onto the chain 31 of the sunflower disc pushing device after the sunflower disc runs horizontally and backwards along with the chains by the longitudinal fixed shifting block 32 on the chain of the sunflower disc pushing device, the sunflower rod gradually enters between two rollers of the sunflower rod dragging device, the sunflower rod is gradually clamped by the two rollers due to the fact that the gap between the rollers is wide in front and narrow in back, downward dragging force is applied to the sunflower rod along with the opposite rotation of the two rollers, finally the sunflower rod is dragged from the sunflower disc root part, the dragged sunflower rod is discharged to the lower part of the rollers along with the rotation of the two rollers, and the sunflower disc is pushed out of the rear part of the sunflower disc pushing device along with the chain of the sunflower disc pushing device. In general, a trailer is towed at the rear of a tractor body, and sunflower discs pushed out from the rear of a sunflower disc pushing device directly fall into a trailer hopper. The conveying belt device 3 for conveying the sunflower discs can be arranged below the tail part of the sunflower disc pushing device, the conveying belt device is fixed by a supporting frame, the conveying belt device can be arranged along the walking direction of a tractor body, and can also be transversely arranged, and the power of the conveying belt device can be provided by additionally arranging a driving chain wheel on a main driving shaft through chain transmission. When the conveyer belt device is arranged along the walking direction of the tractor body, an inclined slide carriage 19 can be arranged at the rear part of the sunflower disc pushing device, and the sunflower disc falls on a belt of the conveyer belt device along the inclined slide carriage and is sent out from the rear part and falls into a trailer bucket dragged by the rear part of the tractor body; when the conveyor belt device is arranged transversely, sunflower discs are discharged from one side of the rear part of the tractor body, and when the utility model works, a vehicle loaded with sunflower discs is required to be synchronously followed on one side of the tractor body.

Claims

1. A sunflower disc harvester comprising: tractor automobile body, harvesting mechanism, power transmission mechanism, characterized by: the harvesting mechanism comprises a harvesting mechanism main body beam frame, the harvesting mechanism main body beam frame consists of two right trapezoid frames which are arranged in parallel and a rectangular vertical frame which connects the two right trapezoid frames together from the rear part, two sides of a tractor body are respectively provided with a set of harvesting mechanism main body beam frame, the lower part of the rectangular vertical frame is connected with a transverse steel beam at the rear part of the tractor body, and the right trapezoid frames are connected with a transverse steel beam at the front part of the tractor body; the structure of the harvesting mechanism, which is positioned at two sides of the tractor body, is completely the same, a sunflower lifting mechanism is arranged on the hypotenuse of each right trapezoid frame, the sunflower lifting mechanism consists of a main lifting mechanism and an auxiliary lifting mechanism, the main lifting mechanism consists of a sunflower lifting supporting plate and a main lifting chain wheel group, the sunflower lifting supporting plate consists of two rectangular long plates which are symmetrically arranged at intervals from side to side, and a guide groove is formed between the two long plates; the main lifting chain wheel sets are arranged in two sets, one set is arranged below each long plate, the driven wheel of the main lifting chain wheel set is positioned below the front end of each long plate, the driving wheel is positioned below the tail end of each long plate, and the chains of the main lifting chain wheel sets run in a plane parallel to the plate surface of each long plate; the auxiliary lifting mechanism consists of two sets of auxiliary lifting chain wheel groups, wherein the two sets of chains are mutually parallel and all run in a longitudinal plane, the auxiliary lifting mechanism is connected with the main lifting mechanism, two driven wheels of the auxiliary lifting mechanism are positioned in a channel between two driving wheels of the main lifting mechanism, and the two driving wheels of the auxiliary lifting mechanism are positioned at the top of the inclined edge of the right-angle trapezoid frame; the chain of the main lifting mechanism is uniformly provided with transverse rotary shifting forks at intervals, and the chain of the auxiliary lifting mechanism is uniformly provided with longitudinal fixed shifting blocks at intervals; two sunflower rod gathering fork arms with front sections distributed in an eight shape and rear sections parallel to each other are connected at the front end of the main lifting mechanism, a group of sunflower rod gathering chain wheel sets are arranged at the upper part of each sunflower rod gathering fork arm, transverse shifting forks are uniformly arranged on chains of the sunflower rod gathering chain wheel sets at intervals, a sunflower rod gathering roller is arranged at the upper part of the front end of each sunflower rod gathering fork arm, a shaft at one end of each sunflower rod gathering roller is connected with a shaft of a front driven wheel of the sunflower rod gathering chain wheel set through a universal joint, the two rollers are distributed in an eight shape, two left and right disc saw blades which can horizontally rotate are arranged below the rear sections of the two sunflower rod gathering fork arms, and the two disc saw blades are staggered up and down, and the orthographic projections of the two disc saw blades form overlapping at the inner side; the sunflower disc pushing device comprises two sets of sunflower disc pushing chain wheel groups which are mutually parallel and all run in a longitudinal plane, longitudinal fixed shifting blocks are uniformly spaced on the chains of the sunflower disc pushing device, two driving wheels of the sunflower disc pushing device are respectively coaxial with two driving wheels of the auxiliary lifting mechanism, two driven wheels are positioned at the rear part of the right angle edge at the upper part of the right angle trapezoid frame, the sunflower disc pulling device comprises two pairs of horizontally arranged roller pairs, a front-wide and rear-narrow acute angle gap is reserved between the two rollers, and the symmetrical center lines of the two rollers and the symmetrical center lines of the two sets of chain wheel groups of the sunflower disc pushing device are positioned on the same vertical plane.

2. The sunflower disc harvester of claim 1, wherein: the power transmission mechanism comprises an engine of a tractor, a walking gearbox of the tractor, a clutch, a main bevel gear box for driving a saw blade, a sunflower rod gathering chain wheel set, a transmission gearbox, a main driving shaft, a roller driving bevel gear box, a main lifting mechanism bevel gear box, a main lifting chain wheel set, an auxiliary lifting chain wheel set and a sunflower disc pushing chain wheel set, wherein the main driving shaft is arranged on a rectangular vertical frame at the rear part of a beam frame of the two sets of harvesting mechanism main bodies through a bearing and a bearing support seat, the main belt pulley of the engine is respectively connected with a belt pulley for driving the clutch and a walking belt pulley of the tractor through a belt, a forward transmission driving wheel and a backward transmission driving wheel are arranged on a main shaft of the clutch, the forward transmission driving wheel is connected with a transition chain wheel through a chain, the transition chain wheel is connected with an input shaft chain wheel for driving the main bevel gear box of the saw blade through a chain, belt pulleys on two output shafts of the main bevel gear box of the saw blade driving the saw blade are respectively connected with belt pulleys on a disc saw blade shaft through a triangular belt, and the disc saw blade shaft is provided with a second belt pulley; the backward transmission driving wheel is connected with an input chain wheel of a transmission gear box by a chain, an output chain wheel of the transmission gear box is connected with a main driving chain wheel fixed in the middle of a main driving shaft by a chain, an auxiliary driving chain wheel on the main driving shaft is fixed at the end part of the main driving shaft corresponding to the middle position of a rectangular vertical frame, a rotating shaft is arranged on the rectangular vertical frame by a bearing, a driven wheel of the auxiliary driving chain wheel on the main driving shaft is fixed in the middle of the rotating shaft, the auxiliary driving chain wheel on the main driving shaft is connected with driven wheels of the auxiliary driving chain wheel on the main driving shaft by the chain, two ends of the rotating shaft are respectively fixed with a main driving small chain wheel, a roller driving bevel gear box is respectively fixed on the upper parts of two longitudinal beams of the rectangular vertical frame, a rotating shaft is arranged at the joint of a bevel beam and a right angle side beam of each right angle trapezoid frame of a main body frame of the harvesting mechanism by a supporting seat and a bearing, an auxiliary lifting mechanism, a driving wheel of a sunflower disc pushing device, a driving wheel of a bevel gear box of a main lifting mechanism, a driving wheel of the auxiliary lifting mechanism and a driving wheel of the sunflower disc pushing device are sequentially fixed on the rotating shaft from outside to inside at intervals, a main driving small chain wheel is connected with a roller driving chain wheel arranged on an input shaft of the roller driving bevel gear box, the auxiliary lifting mechanism and the driving wheel of the sunflower disc pushing device through chains, the driving wheel of the bevel gear box of the main lifting mechanism is connected with a power input wheel of the bevel gear box of the main lifting mechanism through chains, the driving wheel of the auxiliary lifting mechanism is connected with a driven wheel of the auxiliary lifting mechanism through chains, and the driving wheel of the sunflower disc pushing device is connected with a driven wheel of the sunflower disc pushing device arranged on a tail rotating shaft of a right-angle side beam; the driving wheel of the main lifting chain wheel group is connected with the driven wheel of the main lifting chain wheel group through a chain, the lower end of the driven wheel shaft of the main lifting chain wheel group is connected with the upper end of the driving wheel shaft of the sunflower rod gathering chain wheel group through a universal joint, and the upper end of the driven wheel shaft at the front end of the sunflower rod gathering chain wheel group is connected with the shaft at the lower end of the sunflower rod gathering roller through the universal joint.

3. The sunflower disc harvester of claim 1, wherein: the harvesting mechanism body beam frame is fixedly connected with the tractor body, or the right trapezoid frame is connected with the transverse steel beam at the front part of the tractor body through a hydraulic oil cylinder, and the lower part of the rectangular vertical frame is connected with the transverse steel beam at the rear part of the tractor body through a hinge.

4. The sunflower disc harvester of claim 1, wherein: the transverse rotation shifting fork is composed of a transverse rotation shifting fork main shaft and a transverse rotation shifting fork rotatable sleeve, one end of the transverse rotation shifting fork main shaft is fixedly connected with the chain, the transverse rotation shifting fork rotatable sleeve is sleeved on the transverse rotation shifting fork main shaft, and the transverse rotation shifting fork can freely rotate around the main shaft.

5. The sunflower disc harvester of claim 1, wherein: when the main lifting chain wheel sets run, the transverse rotation shifting forks positioned on the opposite sides of the chains of the two main lifting chain wheel sets are positioned below the middle guide grooves of the sunflower lifting supporting plates.

6. The sunflower disc harvester of claim 1, wherein: the driving wheel of the sunflower stem gathering chain wheel set is arranged on the upper part of the intersection of the front section and the rear section of the sunflower stem gathering fork arm, the driven wheel is arranged on the upper part of the front end of the sunflower stem gathering fork arm, and the outer side of the middle part of the front section of the sunflower stem gathering fork arm is provided with a chain tensioning wheel.

7. The sunflower disc harvester of claim 1, wherein: and a steel wire needle net is sleeved on the roller of the sunflower stalk dragging device.

8. The sunflower disc harvester of claim 1, wherein: a conveyer belt device for transferring the sunflower discs is arranged below the tail part of the sunflower disc pushing device.