Hard straw harvesting and picking device and bundling machine

Abstract

The utility model relates to a hard straw harvesting and picking-up device which comprises a gathering assembly, a picking-up assembly, a picking-up assembly and a picking-up assembly. The gathering assembly is arranged on a shell of the hard straw harvesting and picking-up device in a rotatable mode. The gathering assembly comprises two transition teeth which are oppositely arranged, and the distance between the two transition teeth is gradually reduced from the first direction to the second direction; the transition teeth are located above a harvesting assembly of the hard straw harvesting and picking device. According to the hard straw harvesting and picking device, the two transition teeth are oppositely arranged in the gathering assembly, the transition teeth are located above the harvesting assembly of the hard straw harvesting and picking device, and the distance between the two transition teeth is gradually reduced from the first direction to the second direction, so that the gathering assembly can harvest different kinds of hard straw; and lodging straws can be conveniently harvested when the bundling machine is used for harvesting forage.

Description

TECHNICAL FIELD

[0001] The utility model relates to a baling machine technical field, concretely relates to a hard straw harvesting pickup device and baling machine. BACKGROUND

[0002] The traditional baling machine commonly adopts the spring tooth pickup device as the core working part, and the spring tooth pickup device picks up the forage through the spring tooth installed on the pickup cross beam, but the spring tooth pickup device does not have the cutting function. This means that the spring tooth pickup device only harvests the cut straw, and cannot harvest the uncut straw.

[0003] The existing baling machine can also be provided with a hammer claw type pickup device, and the hammer claw type pickup device achieves the purpose of harvesting hard straw through high-speed rotation of the hammer claw. However, due to the high-speed rotation of the hammer claw, the straw crushing rate and the omission rate are high when harvesting hard straw.

[0004] With the continuous iteration of the equipment, a double-layer header and a multifunctional corn harvester appear on the market. The double-layer header includes a lower layer header for harvesting stems and an upper layer header for harvesting ears. The lower layer header and the upper layer header are arranged at the front end of the vehicle body. The lower layer header includes a lower layer header frame. A ground rolling cutter is arranged at the front end of the lower layer header frame for cutting off the corn stems. The rear end of the lower layer header frame is connected with a chopper. A conveying roller and a conveying auger are also arranged on the lower layer header frame. The ground rolling cutter, the conveying roller, and the conveying auger are arranged in sequence from front to back on the lower layer header frame. An auxiliary feeding roller is arranged above the conveying auger and on the lower layer header frame. However, during the one-way conveying of the straw in the auger, the root of the straw is in the auger, the head of the straw is laid down and stacked on the two side plates, and cannot be continuously conveyed and fed. SUMMARY

[0005] The utility model provides a hard straw harvesting pickup device and baling machine to solve the technical problem that the existing baling machine cannot harvest the laid straw when harvesting forage.

[0006] The utility model discloses a hard straw harvesting pickup device, which comprises a gathering assembly rotatably arranged on the shell of the hard straw harvesting pickup device. The gathering assembly comprises two transition teeth arranged oppositely, and the distance between the two transition teeth gradually decreases from the first direction to the second direction. The transition teeth are located above the harvesting assembly of the hard straw harvesting pickup device.

[0007] Further, the converging assembly further comprises a mounting frame, one end of the mounting frame is hinged to the top of the shell, and the transition tooth is arranged at the other end of the mounting frame.

[0008] Further, the converging assembly further comprises a second adjusting rod arranged between the mounting frame and the transition tooth.

[0009] Further, the thickness of the transition tooth gradually decreases from the connection position of the transition tooth and the second adjusting rod to the direction away from the second adjusting rod.

[0010] Further, the transition tooth is an arc-shaped tooth.

[0011] Further, one end of the mounting frame is rotatably connected to the top of the shell through a rotating piece.

[0012] Further, the hard straw harvesting and picking device further comprises an auger conveying assembly arranged on the shell and located at one end of the harvesting assembly close to the second direction.

[0013] Further, the harvesting assembly is arranged on the shell, and the harvesting assembly comprises a harvesting roller, a first conveying roller and a second conveying roller, the harvesting roller is rotatably arranged on the shell, the first conveying roller is rotatably arranged on the shell, the second conveying roller is rotatably arranged on the shell and located between the harvesting roller and the first conveying roller, and the harvesting roller, the first conveying roller and the second conveying roller are drivingly connected through a transmission assembly.

[0014] Further, the transmission assembly comprises a first double-wheel piece, a second double-wheel piece, a third sprocket, a fourth sprocket and a fifth sprocket, the first double-wheel piece is rotatably arranged at one end of the first conveying roller through a bearing, the first sprocket of the first double-wheel piece is connected with a driving sprocket of the bundling machine through a transmission chain, the second double-wheel piece is arranged at one end of the second conveying roller, the second gear of the second double-wheel piece is engaged with the first gear of the first double-wheel piece, the third sprocket is arranged at one end of the harvesting roller, the third sprocket is connected with the second sprocket of the second double-wheel piece through a transmission chain, the fourth sprocket is arranged at the other end of the second conveying roller, and the fifth sprocket is arranged at the other end of the first conveying roller and connected with the fourth sprocket through a transmission chain.

[0015] The hard straw harvesting and picking device provided by the utility model can realize the following technical effects.

[0016] The hard straw harvesting and picking device and the bundling machine can realize the following technical effects.

[0017] 1. The two transition teeth are arranged oppositely in the bunching assembly, the transition teeth are located above the harvesting assembly of the hard straw harvesting pickup device, and the distance between the two transition teeth gradually decreases from the first direction to the second direction, which can make the bunching assembly harvest different hard straws and facilitate the baler to harvest the fallen straws during the harvesting of forage.

[0018] 2. The bunching assembly is adjusted according to different straw lengths, and the first adjusting rod, the second adjusting rod and the transition teeth can support the cut straws as a reference. According to the reference, when the straw length is too short, the first adjusting rod telescopic end needs to be retracted, the second adjusting rod telescopic end needs to be retracted, and the transition teeth need to be close to the rotating blade to support the straws. On the contrary, when the straw length is too long, the first adjusting rod telescopic end needs to be extended, the second adjusting rod telescopic end needs to be extended, and the transition teeth need to be close to the rotating blade to support the straws. The height of the first adjusting rod and the length of the second adjusting rod are changed to adjust the position of the transition teeth, which can prevent the accumulation of straws on both sides and assist in harvesting fallen straws, effectively solving the problem of one-sided fallen accumulation of hard straws during the conveying process.

[0019] 3. The harvesting assembly optimizes the transmission mode through the transmission assembly, simplifies the transmission structure, and ensures the consistency of the operation function.

[0020] The above general description and the following description are only exemplary and explanatory, and are not used to limit the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0021] One or more embodiments are exemplified by corresponding drawings, which do not constitute limitations on the embodiments, elements with the same reference numerals in the drawings are considered as similar elements, and wherein:

[0022] Figure 1 is a schematic diagram of an embodiment of the hard straw harvesting pickup device of the utility model;

[0023] Figure 2 is a schematic diagram of an embodiment of the bunching assembly of the hard straw harvesting pickup device of the utility model;

[0024] Figure 3 is a schematic diagram of an embodiment of the harvesting assembly of the hard straw harvesting pickup device of the utility model;

[0025] Figure 4 is a schematic diagram of an embodiment of the harvesting assembly of the hard straw harvesting pickup device of the utility model; Figure 1 ;

[0026] Figure 5is an embodiment of the harvesting assembly of the hard straw harvesting and picking device Figure 2 ;

[0027] Figure 6 is a partial sectional view of an embodiment of the first conveying roller of the hard straw harvesting and picking device.

[0028] Reference signs:

[0029] 11, first sub-shell; 12, second sub-shell; 2, harvesting assembly; 21, harvesting roller; 22, first conveying roller; 23, second conveying roller; 3, auger conveying assembly; 4, gathering assembly; 41, mounting frame; 42, first adjusting rod; 43, second adjusting rod; 44, rotating member; 441, hinged hole; 45, transition tooth; 5, transmission assembly; 51, first double-wheel member; 511, first gear; 512, first sprocket; 52, second double-wheel member; 521, second gear; 522, second sprocket; 53, third sprocket; 54, fourth sprocket; 55, fifth sprocket; 56, sixth sprocket; 57, bearing; 58, transmission chain. DETAILED DESCRIPTION

[0030] In order to enable one skilled in the art to better understand the characteristics and technical contents of the embodiments of the present application, the implementation of the embodiments of the present application will be described in detail below with reference to the drawings, which are only used for reference and do not limit the embodiments of the present application. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, in order to simplify the drawings, well-known structures and devices can be simplified.

[0031] The terms "first", "second", and the like in the specification and claims of the embodiments of the present application and the above drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so as to implement the embodiments of the embodiments of the present application described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0032] In the embodiments of the present application, the terms "upper", "lower", "inner", "middle", "outer", "front", "back" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present application and its embodiments, and are not used to limit the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the embodiments of the present application can be understood according to the specific circumstances.

[0033] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0034] Unless otherwise stated, the term "a plurality of" means two or more, and "a plurality of groups" means two groups or more.

[0035] It should be noted that the embodiments in the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0036] As shown in Figure 1 The present application discloses a hard straw harvesting and picking device, which comprises a shell, a harvesting assembly 2, an auger conveying assembly 3 and a gathering assembly 4. The shell comprises a first sub-shell 11 and a second sub-shell 12, the first sub-shell 11 and the second sub-shell 12 are oppositely arranged, and the first sub-shell 11 and the second sub-shell 12 are symmetrical structures. The hard straw harvesting and picking device is inclinedly arranged on the harvester, that is, the shell is inclinedly arranged on the harvester. One end of the harvesting assembly 2 is connected with the first sub-shell 11, the other end of the harvesting assembly 2 is connected with the second sub-shell 12, and the harvesting assembly 2 is located at one end of the shell close to the first direction. One end of the auger conveying assembly 3 is arranged on the first sub-shell 11, the other end of the auger conveying assembly 3 is arranged on the second sub-shell 12, and the auger conveying assembly 3 is located at one end of the harvesting assembly 2 close to the second direction.

[0037] In the present embodiment, with the harvester as the reference object, when the hard straw harvesting and picking device is arranged on the harvester, the direction of the hard straw harvesting and picking device away from the harvester is the first direction, and the direction of the hard straw harvesting and picking device close to the harvester is the second direction.

[0038] As shown in Figure 1 , Figure 2 , the bunching assembly 4 is rotatably arranged on the shell of the hard straw harvesting pickup device. Specifically, the bunching assembly 4 comprises a mounting frame 41, a first adjusting rod set 42, a second adjusting rod set 43, a rotating piece set 44 and a transition tooth set 45. The rotating piece set 44 is arranged at one end of the mounting frame 41, and the rotating piece set 44 comprises two rotating pieces 44 arranged at two sides of the mounting frame 41 along the length direction thereof, and each rotating piece 44 has a hinge hole 441. A hinge shaft is inserted through the hinge hole 441 of one rotating piece 44, and the mounting frame 41 is hinged to the first sub-shell 11; another hinge shaft is inserted through the hinge hole 441 of the other rotating piece 44, and the mounting frame 41 is hinged to the second sub-shell 12; thus, one end of the mounting frame 41 is rotatably connected to the top of the shell through the rotating pieces 44.

[0039] The first adjusting rod set 42 is arranged at the other end of the mounting frame 41, and the first adjusting rod set 42 comprises two first adjusting rods 42 arranged at two sides of the mounting frame 41 along the length direction thereof, and the two first adjusting rods 42 are symmetrically arranged. One end of the main body of one first adjusting rod 42 away from the telescopic end thereof is hinged to the first sub-shell 11, and the telescopic end of this first adjusting rod 42 is hinged to the end of the mounting frame 41 away from the rotating pieces 44. Similarly, one end of the main body of the other first adjusting rod 42 away from the telescopic end thereof is hinged to the second sub-shell 12, and the telescopic end of this first adjusting rod 42 is hinged to the end of the mounting frame 41 away from the rotating pieces 44. The height of the other end of the mounting frame 41 can be adjusted by the telescopic extension of the telescopic end of the first adjusting rod 42.

[0040] The second adjusting rod set 43 is arranged at the other end of the mounting frame 41, and the second adjusting rod set 43 comprises two second adjusting rods 43 arranged at two sides of the mounting frame 41 along the length direction thereof, and the two second adjusting rods 43 are symmetrically and parallelly arranged. One end of the main body of each of the two second adjusting rods 43 away from the telescopic end thereof is hinged to the other end of the mounting frame 41, and the telescopic ends of the two second adjusting rods 43 are arranged towards the first direction. The transition tooth set 45 comprises two transition teeth 45, one end of each of the two transition teeth 45 is arranged at the telescopic end of each of the two second adjusting rods 43, the two transition teeth 45 are oppositely arranged and have symmetrical structures. Thus, the position of the transition tooth set 45 can be adjusted by the telescopic extension of the second adjusting rod 43. In this embodiment, the front and back positions and the height of the transition tooth set 45 can be adjusted according to different straw conditions by the cooperation of the first adjusting rod 42 and the second adjusting rod 43, and the symmetrical splayed arrangement of the transition tooth set 45 is cooperated, so as to facilitate the bunching of the straw.

[0041] Optionally, the first adjusting rod 42 and the second adjusting rod 43 can adopt an electric push rod, a hydraulic push rod or a mechanical hand.

[0042] As shown in Figure 2 , the transition tooth 45 is an arc-shaped tooth, and the thickness of the transition tooth 45 gradually decreases from the connection between the transition tooth 45 and the telescopic end of the second adjusting rod 43 to the direction away from the second adjusting rod 43. The distance between the two transition teeth 45 gradually decreases from the first direction to the second direction. The transition tooth 45 is located above the harvesting assembly 2.

[0043] Optionally, as shown in Figure 1 , Figure 3 , the harvesting assembly 2 includes a harvesting roller 21, a first conveying roller 22 and a second conveying roller 23, and the harvesting roller 21, the second conveying roller 23 and the first conveying roller 22 are sequentially arranged from the first direction to the second direction. The two ends of the harvesting roller 21 are respectively rotatably connected to the first sub-housing 11 and the second sub-housing 12 through the bearing 57 seat. The two ends of the first conveying roller 22 are respectively rotatably connected to the first sub-housing 11 and the second sub-housing 12 through the bearing 57 seat. The two ends of the second conveying roller 23 are respectively rotatably connected to the first sub-housing 11 and the second sub-housing 12 through the bearing 57 seat. The harvesting roller 21, the first conveying roller 22 and the second conveying roller 23 are drivingly connected through the transmission assembly 5. There is a gap between the harvesting roller 21, the first conveying roller 22 and the second conveying roller 23, which not only avoids the mutual influence among them, but also ensures the normal conveying of the straw without falling.

[0044] Optionally, as shown in Figures 3 to 6As shown, the transmission assembly 5 includes a first double-wheel component 51, a second double-wheel component 52, a third sprocket 53, a fourth sprocket 54, a fifth sprocket 55, and a sixth sprocket 56. The first double-wheel component 51 includes a first gear 511 and a first sprocket 512. A bolt is passed through the hole on the first sprocket 512 and screwed into the threaded hole of the first gear, thus completing the fixed connection between the first sprocket 512 and the first gear. The second double-wheel component 52 includes a second gear 521 and a second sprocket 522. A bolt is passed through the hole on the second sprocket 522 and screwed into the threaded hole of the second gear 521, thus completing the fixed connection between the second sprocket 522 and the second gear 521. The first double-wheel component 51 is mounted on the right end of the first conveying roller 22 via a bearing 57, and the first sprocket 512 is connected to the drive sprocket of the baler via a transmission chain 58. The second double-wheel assembly 52 is located at the right end of the second conveying roller 23, and its second gear 521 meshes with the first gear 511 of the first double-wheel assembly 51. The third sprocket 53 is located at the right end of the harvesting roller 21, and is connected to the second sprocket 522 of the second double-wheel assembly 52 via a drive chain 58. The fourth sprocket 54 is located at the left end of the second conveying roller 23, the fifth sprocket 55 is located at the left end of the first conveying roller 22, and the sixth sprocket 56 is hinged to the side plate of the second sub-shell 12. The fourth sprocket 54, the fifth sprocket 55, and the sixth sprocket 56 are connected via a drive chain 58.

[0045] The power transmission process of transmission component 5:

[0046] like Figures 3 to 6 As shown, the baler's drive sprocket drives the first sprocket 512 to rotate via the transmission chain 58. The first sprocket 512 drives the first gear 511 to rotate, the first gear 511 drives the second gear 521 to rotate, the second gear 521 drives the second sprocket 522 to rotate, the second sprocket 522 drives the third sprocket 53 to rotate via the transmission chain 58, and the third sprocket 53 drives the harvesting roller 21 to rotate. The second gear 521 drives the second conveying roller 23 to rotate, the second conveying roller 23 drives the fourth sprocket 54 to rotate, the fourth sprocket 54 drives the fifth sprocket 55 and the sixth sprocket 56 to rotate via the transmission chain 58, the fifth sprocket 55 drives the first conveying roller 22 to rotate, and the sixth sprocket 56 plays an auxiliary transmission role. This ensures that the operation mode of the harvesting roller 21, the first conveying roller 22, and the second conveying roller 23 is consistent with that of the auger conveyor assembly 3. When the first double wheel component 51 rotates, the outer ring of the bearing 57 will rotate accordingly. According to the above power transmission process, when the fifth sprocket 55 drives the first conveying roller 22 to rotate, the first conveying roller 22 drives the inner ring of the bearing 57 to rotate, that is, the inner ring of the bearing 57 rotates in the opposite direction to the outer ring, so that the harvesting roller 21, the first conveying roller 22, and the second conveying roller 23 can rotate in the same direction.

[0047] The utility model discloses still disclose a baling machine, it includes the hard straw harvesting pickup device of any one embodiment as above.

[0048] Application scenarios of an example embodiment:

[0049] As Figures 1 to 6 The utility model discloses a hard straw harvesting pickup device is assembled on the baling machine, and the drive sprocket of baling machine sends power to hard straw harvesting pickup device through transmission chain 58, is provided with multiple rows cutting blade on harvesting roll 21, when harvesting roll 21 rotates, cutting blade can cut the root of the straw to be harvested with the high -speed rotation of harvesting roll 21. When cutting is completed, the root of straw will move with the rotating direction of cutting blade to second conveying roller 23, first conveying roller 22. First conveying roller 22, second conveying roller 23 are all equipped with friction edge to increase friction, complete the smooth conveying of straw, avoid accumulation. When straw is smoothly conveyed from first conveying roller 22 to auger conveying assembly 3, straw is under the helical thrust of auger helical blade of auger conveying assembly 3 and is conveyed to the feeding entrance, to reach the large capacity and be baled into shape.

[0050] In the baling process, if there is straw piece to the pickup mouth both sides of the lodging, then through the position of transition tooth 45 is adjusted by the up-down adjustment of first adjusting rod 42 and the front-back adjustment of second adjusting rod 43, guarantee both sides of the lodging straw to stand or both sides of the lodging straw to lean to the middle state, so that the normal conveying of the hard long straw after cutting. Also can prevent the straw after cutting from lodging to both sides of the pickup mouth due to gravity and lever effect, can not normally convey and feed into the baling machine. In addition, because the straw is generally long and hard rod structure when cutting and conveying, when the straw is fed into auger conveying assembly 3 at one end, the other end of the straw is supported by first adjusting rod 42, second adjusting rod 43 and transition tooth 45, to prevent the straw from lodging to both sides of the mouth and accumulating, and to avoid the auger conveying assembly 3 from being unable to feed.

[0051] According to different straw length, adjust the gathering assembly 4, so that the first adjusting rod 42, the second adjusting rod 43 and the transition tooth 45 can support the cut straw. According to the above standard, when the straw length is too short, the telescopic end of the first adjusting rod 42 and the telescopic end of the second adjusting rod 43 need to be retracted, to ensure that the transition tooth 45 is close to the rotating blade, so as to support the straw. On the contrary, when the straw length is too long, the telescopic end of the first adjusting rod 42 and the telescopic end of the second adjusting rod 43 need to be extended, to ensure that the upper part of the straw can be supported. If the above adjustment is not performed, the short straw may not reach the transition tooth 45 or may fall out from the first adjusting rod 42 and the second adjusting rod 43 on both sides.

[0052] The above description and drawings suffice to fully illustrate the embodiments of the present application so that one skilled in the art can practice them. Other embodiments can include structural and other changes. The embodiments are merely representative of the possible variations. Individual components and functions are optional unless specifically required, and the order of operations can be varied. Portions and features of some embodiments can be included in, or substituted for, portions and features of other embodiments. The embodiments of the present application are not limited to the structures already described and shown in the drawings, and can be varied in various ways without departing from the scope of the application. The scope of the present application is merely limited by the claims appended hereto.

Claims

1. A hard-stalk harvesting pickup device, characterized in that Comprising: a converging assembly (4) rotatably arranged on a housing of the hard-stalk harvesting pickup device; the converging assembly (4) comprises two transition teeth (45) oppositely arranged, the distance between the two transition teeth (45) gradually decreases from the first direction to the second direction; the transition teeth (45) are located above the harvesting assembly (2) of the hard-stalk harvesting pickup device.

2. The hard stalk harvesting pickup device of claim 1, wherein, the converging assembly (4) further comprises: a mounting bracket (41) hingedly connected to one end of the top of the housing; the transition tooth (45) is arranged at the other end of the mounting bracket (41); a first adjusting rod (42) hingedly connected to the other end of the mounting bracket (41), the main body of the first adjusting rod (42) is hingedly connected to the top of the housing.

3. The hard stalk harvesting pickup device of claim 2, wherein, the converging assembly (4) further comprises: a second adjusting rod (43) arranged between the mounting bracket (41) and the transition tooth (45).

4. The hard-stalk harvesting pickup device according to claim 3, wherein the thickness of the transition tooth (45) gradually decreases from the connection position of the transition tooth (45) and the second adjusting rod (43) to the direction away from the second adjusting rod (43).

5. The hard-stalk harvesting pickup device according to claim 4, wherein the transition tooth (45) is an arc-shaped tooth.

6. The hard-stalk harvesting pickup device according to claim 2, wherein one end of the mounting bracket (41) is rotatably connected to the top of the housing through a rotating piece (44).

7. The hard stalk harvesting pickup device according to any one of claims 1 to 6, characterized in that Further comprising: a stirrup conveying assembly (3) arranged on the housing and located at one end of the harvesting assembly (2) close to the second direction.

8. The hard stalk harvesting and pickup device of claim 1, wherein, the harvesting assembly (2) is arranged on the housing, and the harvesting assembly (2) comprises: a harvesting roller (21) rotatably arranged on the housing; a first conveying roller (22) rotatably arranged on the housing; a second conveying roller (23) rotatably arranged on the housing and located between the harvesting roller (21) and the first conveying roller (22); the harvesting roller (21), the first conveying roller (22) and the second conveying roller (23) are drivingly connected through a transmission assembly (5).

9. The hard stalk harvesting and pickup device of claim 8, wherein, the transmission assembly (5) comprises: a first double-wheel piece (51) rotatably arranged on one end of the first conveying roller (22) through a bearing; a first sprocket of the first double-wheel piece (51) is connected with a driving sprocket of the baling machine through a transmission chain (58); a second double-wheel piece (52) arranged on one end of the second conveying roller (23); a second gear of the second double-wheel piece (52) is engaged with a first gear of the first double-wheel piece (51); a third sprocket (53) arranged on one end of the harvesting roller (21), the third sprocket (53) is connected with a second sprocket of the second double-wheel piece (52) through a transmission chain (58); a fourth sprocket (54) arranged on the other end of the second conveying roller (23); a fifth sprocket (55) arranged on the other end of the first conveying roller (22) and connected with the fourth sprocket (54) through a transmission chain (58).

10. A baler characterized in that, Comprising: A hard stalk harvesting pickup device as claimed in any one of claims 1 to 9.

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