Header transmission system and harvester header

Abstract

The utility model provides a header transmission system which comprises an ear picking unit, a driving shaft and an input idler shaft. The ear picking unit comprises stem pulling rollers, a flail knife and a seedling pulling chain, the heading direction of the harvester is taken as the front, the stem pulling rollers comprise a first stem pulling roller arranged on the left side and a second stem pulling roller arranged on the right side, and the flail knife is arranged on the right side of the second stem pulling roller; the seedling pulling chain comprises a first seedling pulling chain arranged above the first stem pulling roller and a second seedling pulling chain arranged above the second stem pulling roller; an input gear arranged on the driving shaft is meshed with an input idle gear arranged on the input idle gear shaft; the transmission unit comprises a first gear, a stem pulling roller driving mechanism, a flail knife driving mechanism and a reel chain driving mechanism, the transmission unit is connected with the input gear and the ear picking unit, the input gear inputs power to the transmission unit, and then the stem pulling roller, the flail knife and the reel chain are driven to work. The header transmission system and the harvester header are simple in structure and capable of stably and efficiently harvesting crops.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a cutting platform transmission system and a harvester cutting platform. Background Art

[0002] With the development of modern agricultural technology, harvesters can realize the whole process operation from fruit to straw recovery. The header of the harvester has a great impact on the harvesting efficiency during the crop harvesting operation. In the prior art, the straw chain usually grabs the crops and pushes them into the header, and the fruit ears are separated from the straw by the stem roller. The fruit ears enter the harvester through the conveying device for further processing and are collected in the grain storage bin; for crop straw, one is to return the straw to the field after crushing it, and the other is to crush the straw and collect it through the chopping device and recycling system for use in making feed or power generation. Both modes rely on an efficient and stable header transmission system. The realization of the above functions all depends on an efficient and stable header transmission system, but the existing header transmission system lacks a header transmission system that is both simple and reliable and can realize multiple functions.

[0003] Therefore, it is necessary to provide a cutting platform transmission system to overcome the above-mentioned defects. Utility Model Content

[0004] The utility model aims to provide a cutting table transmission system and a harvester cutting table, so as to solve the problem of low cutting table transmission efficiency during the harvesting operation of the harvester. At the same time, placing the flinging knife in front can significantly improve the straw crushing efficiency of the harvester and improve the working stability of the cutting table.

[0005] According to one aspect of the utility model, a cutting platform transmission system is provided, comprising:

[0006] The ear picking unit includes a stem pulling roller, a flinging knife, and a straw pulling chain. With the forward direction of the harvester as the front, the stem pulling roller includes a first stem pulling roller arranged on the left and a second stem pulling roller arranged on the right, and the flinging knife is arranged on the right side of the second stem pulling roller; the straw pulling chain is arranged above the stem pulling roller, and includes a first straw pulling chain arranged above the first stem pulling roller and a second straw pulling chain arranged above the second stem pulling roller;

[0007] A driving shaft, wherein an input gear is arranged on the driving shaft;

[0008] An input idler shaft, on which an input idler is disposed, and the input gear meshes with the input idler;

[0009] A transmission unit, wherein the transmission unit is connected to the input gear, the input gear inputs power to the transmission unit, the transmission unit is connected to the ear picking unit, the ear picking unit receives the power provided by the driving shaft, and drives the stem pulling roller, the flinging knife, and the grain pulling chain to work;

[0010] The transmission unit comprises:

[0011] A first gear, the input idler gear is meshed with the first gear, power is transmitted to the input idler gear through the input gear, and then the power is transmitted to the first gear after the rotation direction is changed by the input idler gear;

[0012] A stem-pulling roller driving mechanism, the stem-pulling roller driving mechanism comprising a first bevel gear set and a second bevel gear set connected to the first gear, the first bevel gear set comprising a first main bevel gear and a first slave bevel gear, the second bevel gear set comprising a second main bevel gear and a second slave bevel gear; the first main bevel gear rotates coaxially with the first gear, the first slave bevel gear is connected to the first stem-pulling roller, and the first main bevel gear is meshed with the first slave bevel gear; the second main bevel gear rotates coaxially with the first gear, the second slave bevel gear is connected to the second stem-pulling roller, and the second main bevel gear is meshed with the second slave bevel gear; the second bevel gear set is connected to the second stem-pulling roller;

[0013] A knife-fling driving mechanism, wherein the knife-fling driving mechanism is connected to the second bevel gear set, and comprises a knife-fling main gear coaxially rotating with the second bevel gear set, and a knife-fling slave gear meshing with the knife-fling main gear, wherein the knife-fling main gear and the knife-fling slave gear drive the knife-fling to work;

[0014] A reed chain driving mechanism, the reed chain driving mechanism includes a third bevel gear set and a fourth bevel gear set connected to the first gear, the third bevel gear set includes a third main bevel gear and a third slave bevel gear, the third slave bevel gear rotates coaxially with the first reed sprocket to drive the first reed chain to work; the fourth bevel gear set includes a fourth main bevel gear and a fourth slave bevel gear, the fourth slave bevel gear rotates coaxially with the second reed sprocket to drive the second reed chain to work.

[0015] The driving shaft transmits power to the functional components of the harvesting table, such as the straw chain, the stem pulling roller, and the flinging knife, through the input gear and the input idler wheel. The straw chain, the stem pulling roller, and the flinging knife work together under the power transmitted by the driving shaft to achieve efficient and stable harvesting of crops.

[0016] Preferably, spline shafts are respectively arranged on the left and right sides of the input gear on the driving shaft, an active clutch is arranged on the driving shaft, and the active clutch cover is arranged on any one of the spline shafts on the left and right sides to limit the rotation of the driving shaft.

[0017] The active clutch installed on the driving shaft can improve the safety factor during the working process of the harvesting platform, making the harvesting operation more reliable.

[0018] Preferably, the knife-flinging driving mechanism includes a knife-flinging shaft and a knife-flinging bevel gear group connected to the knife-flinging shaft, the knife-flinging bevel gear group includes a knife-flinging main bevel gear and a knife-flinging slave bevel gear, the knife-flinging slave gear is arranged on the knife-flinging shaft, the knife-flinging main bevel gear rotates coaxially with the knife-flinging slave gear, the knife-flinging slave bevel gear is connected to the knife-flinging, and the knife-flinging slave bevel gear drives the knife-flinging to work.

[0019] Preferably, the knife-flinging driving mechanism includes a clutch spring connected to the knife-flinging slave gear, the clutch spring is arranged on the knife-flinging active shaft, and the clutch spring controls the knife-flinging main gear to mesh with the knife-flinging slave gear to achieve braking of the knife-flinging driving mechanism.

[0020] Preferably, the knife-flinging driving mechanism comprises a limiting base, the limiting base is connected to the knife-flinging slave gear, and the limiting base rotates to limit the position of the knife-flinging slave gear.

[0021] Preferably, the limiting base comprises a limiting bolt, and the limiting bolt abuts against the swinging knife slave gear to achieve braking of the swinging knife driving mechanism.

[0022] The blade-flipping drive mechanism can independently control the blade-flipping operation by setting a clutch spring and a limit seat, and can cut the straw of different crops in different regions, and the straw cutting process is controllable.

[0023] Preferably, the third main bevel gear and the fourth main bevel gear are connected to the first gear and the third main bevel gear and the fourth main bevel gear rotate coaxially.

[0024] Preferably, the input gear and the input idler gear are arranged on a gear mounting seat.

[0025] Preferably, the driving shaft is a hexagonal shaft.

[0026] The utility model of the present application also provides a harvester header, comprising any of the above-mentioned header transmission systems.

[0027] The present application designs a cutting table transmission system, and the power of the harvester's straw pulling chain, stalk pulling roller and slinging blade is synchronized, so that the transmission efficiency of the cutting table is improved. The transmission system connects the stalk pulling roller and slinging blade power, and controls the slinging blade to work independently through the slinging blade clutch device, thereby improving the straw chopping efficiency, and thus the harvesting efficiency of the harvester is improved. At the same time, the design of the safety clutch ensures the reliability of the cutting table transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0029] Figure 1 A schematic diagram of a cutting platform transmission system structure provided by the utility model Figure 1 .

[0030] Figure 2 A schematic diagram of a cutting platform transmission system structure provided by the utility model Figure 2 .

[0031] Figure 3 A schematic diagram of a cutting platform transmission system structure provided by the utility model Figure 2 A partial enlarged view of .

[0032] Figure 4 The utility model provides a local structural schematic diagram of a cutting platform transmission system.

[0033] Figure 5 The utility model is a schematic diagram of a harvester header.

[0034] Description of Figure Numbers:

[0035] 200-cutting platform; 100-cutting platform transmission system; 1-ear picking unit; 11-stem pulling roller; 111-first stem pulling roller; 112-second stem pulling roller; 12-throwing knife; 13-grain pulling chain; 131-first grain pulling chain; 132-second grain pulling chain; 2-driving shaft; 21-input gear; 22-input idler shaft; 23-input idler; 24-spline shaft; 25-driving clutch; 26-gear mounting seat; 3-transmission unit; 31-first gear; 32-stem pulling roller driving mechanism; 321-first bevel gear set; 3211-first main bevel gear; 3212-first slave bevel gear; 322-second bevel gear set; 3221-second main bevel gear; 3222-second slave bevel gear; 33-knife-fling driving mechanism; 331-knife-fling main gear; 332-knife-fling slave gear; 333-knife-fling shaft; 334-knife-fling bevel gear set; 3341-knife-fling main bevel gear; 3342-knife-fling slave bevel gear; 335-clutch spring; 336-limiting base; 3361-limiting bolt; 34-grain chain driving mechanism; 341-third bevel gear set; 3411-third main bevel gear; 3412-third slave bevel gear; 342-fourth bevel gear set; 3421-fourth main bevel gear; 3422-fourth slave bevel gear; 343-grain-fling sprocket; 3431-first grain-fling sprocket; 3432-second grain-fling sprocket. DETAILED DESCRIPTION

[0036] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0038] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0039] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0040] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0041] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0042] See also Figures 1 to 5As shown, the harvesting table transmission system 100 in this embodiment includes an ear picking unit 1, the ear picking unit 1 includes a stem pulling roller 11, a flinging knife 12, and a straw chain 13. With the forward direction of the harvester as the front, the stem pulling roller 11 includes a first stem pulling roller 111 arranged on the left and a second stem pulling roller 112 arranged on the right, and the flinging knife 12 is arranged on the right side of the second stem pulling roller 112; the straw chain 13 is arranged above the stem pulling roller 11, and the straw chain 13 includes a first straw chain 131 arranged above the first stem pulling roller 111 and a second straw chain 132 arranged above the second stem pulling roller 112;

[0043] A driving shaft 2, on which an input gear 21 is provided;

[0044] An input idler shaft 22, on which an input idler gear 23 is disposed, and the input gear 21 meshes with the input idler gear 23;

[0045] The transmission unit 3 is connected to the input gear 21, the input gear 21 inputs power to the transmission unit 3, the transmission unit 3 is connected to the ear picking unit 1, the ear picking unit 1 receives the power provided by the driving shaft 2, and drives the stem pulling roller 11, the flinging knife 12, and the grain pulling chain 13 to work;

[0046] The transmission unit 3 includes a first gear 31, and the input idler gear 23 is meshed with the first gear 31. The power is transmitted to the input idler gear 23 through the input gear 21, and then the power is transmitted to the first gear 31 after the rotation direction is changed by the input idler gear 23.

[0047] The stem pulling roller driving mechanism 32 includes a first bevel gear set 321 and a second bevel gear set 322 connected to the first gear 31. The first bevel gear set 321 includes a first main bevel gear 3211 and a first slave bevel gear 3212. The second bevel gear set 322 includes a second main bevel gear 3221 and a second slave bevel gear 3222. The first main bevel gear 3211 rotates coaxially with the first gear 31, the first slave bevel gear 3212 is connected to the first stem pulling roller 111, and the first main bevel gear 3211 is meshed with the first slave bevel gear 3212. The second main bevel gear 3221 rotates coaxially with the first gear 31, the second slave bevel gear 3222 is connected to the second stem pulling roller 112, and the second main bevel gear 3221 is meshed with the second slave bevel gear 3222. The second bevel gear set 322 is connected to the second stem pulling roller 112.

[0048] The blade-flinging driving mechanism 33 is connected to the second bevel gear set 322. The blade-flinging driving mechanism 33 includes a blade-flinging main gear 331 coaxially rotating with the second bevel gear set 322, and a blade-flinging slave gear 332 meshing with the blade-flinging main gear 331. The blade-flinging main gear 331 and the blade-flinging slave gear 332 drive the blade-flinging 12 to work;

[0049] The reed chain driving mechanism 34 includes a third bevel gear set 341 and a fourth bevel gear set 342 connected to the first gear 31. The third bevel gear set 341 includes a third main bevel gear 3411 and a third slave bevel gear 3412. The third slave bevel gear 3412 rotates coaxially with the first reed sprocket 3431 to drive the first reed chain 131 to work; the fourth bevel gear set 342 includes a fourth main bevel gear 3421 and a fourth slave bevel gear 3422. The fourth slave bevel gear 3422 rotates coaxially with the second reed sprocket 3432 to drive the second reed chain 132 to work.

[0050] Specifically, during the harvesting operation, the various components of the ear picking unit 1 of the harvesting table 200 cooperate with each other to harvest the crops. The straw chain 13 transports the harvested crops to the rear of the harvesting table 200, and the stem pulling roller 11 squeezes the crop straw. The harvester harvesting table 200 includes multiple ear picking units 1, each of which is provided with a pair of stem pulling rollers 11 and a pair of straw chains 13. In conventional harvesting tables 200 on the market, the stem pulling roller 11 is often arranged below the straw chain 13, that is, a first stem pulling roller 111 and a second stem pulling roller 112 are arranged, a first straw pulling chain 131 is arranged above the first stem pulling roller 111, and a second straw pulling chain 132 is arranged above the second stem pulling roller 112. In the harvesting table transmission system 100 provided in this embodiment, a straw cutting knife 12 is also provided. With reference to the forward direction of the harvester, the straw cutting knife 12 is connected to the second stem pulling roller 112 on the right. An input gear 21 is provided on the driving shaft 2, and the input gear 21 rotates with the driving shaft 2 to provide driving force for the stem pulling roller 11, the straw chain 13 and the flinging knife 12. In order to achieve stable and efficient power output on the driving shaft 2, and then drive the cutting table transmission system 100 to work, an input idler 23 is provided, and the input idler 23 is meshed with the input gear 21 on the driving shaft 2. When the input gear 21 drives the various components of the cutting table transmission system 100 to work, the power direction of each component is opposite to the rotation direction of the driving shaft 2. The input idler 23 provided here can realize rotation reversal, and each component can work synchronously with the rotation direction of the driving shaft 2.

[0051] The transmission unit 3 is connected to the ear picking unit 1, and the transmission unit 3 is connected to the input gear 21. The power provided by the input gear 21 is transmitted to the transmission unit 3 after being reversed by the input idler wheel 23, and then the power on the driving shaft 2 is transmitted to the ear picking unit 1 through the transmission unit 3, thereby driving each component on the ear picking unit 1 to work. The transmission unit 3 includes a first gear 31, a stem pulling roller driving mechanism 32, a flinging knife driving mechanism 33 and a straw chain driving mechanism 34. Among them, the first gear 31 is meshed with the input idler wheel 23, and the first gear 31 is respectively connected to the stem pulling roller driving mechanism 32, the flinging knife driving mechanism 33 and the straw chain driving mechanism 34.

[0052] As for the stem pulling roller driving mechanism 32 provided in the transmission unit 3, since the stem pulling roller 11 is provided with the first stem pulling roller 111 on the left and the second stem pulling roller 112 on the right, when the first gear 31 is connected to the first bevel gear set 321, the first stem pulling roller 111 is driven to work, and when the first gear 31 is connected to the second gear set, the second stem pulling roller 112 is driven to work. Specifically, the first gear 31 is connected to the first main bevel gear 3211 in the first bevel gear set 321 and rotates coaxially, and the first main bevel gear 3211 is meshed with the first slave bevel gear 3212. When the first gear 31 rotates, the first main bevel gear 3211 rotates with the first gear 31, thereby driving the first slave bevel gear 3212 to rotate. The first slave bevel gear 3212 is connected to the first stem pulling roller 111. When the first slave bevel gear 3212 rotates, the first stem pulling roller 111 works. The first gear 31 is connected to the second bevel gear in the second bevel gear set 322 and rotates coaxially. The second main bevel gear 3221 is meshed with the second slave bevel gear 3222. When the first gear 31 rotates, the second main bevel gear 3221 rotates with the first gear 31, thereby driving the second slave bevel gear 3222 to rotate. The second slave bevel gear 3222 is connected to the second stem pulling roller 112. When the second slave bevel gear 3222 rotates, the second stem pulling roller 112 works.

[0053] The knife-fling driving mechanism 33 provided in the transmission unit 3 is provided on the right half side of the stem-pulling roller driving mechanism 32, that is, the knife-fling driving mechanism 33 is provided on the right side of the second stem-pulling roller 112, and the knife-fling driving mechanism 33 is connected to the second bevel gear set 322. The knife-fling main gear 331 is connected to the second bevel gear, and the specific connection mode is that the knife-fling main gear 331 rotates coaxially with the second slave bevel gear 3222. The knife-fling slave gear 332 is meshed with the knife-fling main gear 331, and when the knife-fling main gear 331 rotates with the second slave bevel gear 3222, it drives the knife-fling slave gear 332 to rotate, thereby driving the knife-fling 12 to work.

[0054] For the straw chain driving mechanism 34 provided in the transmission unit 3 , similarly, the straw chain 13 in the ear picking unit 1 is provided with a first straw chain 131 and a second straw chain 132 , wherein the first straw chain 131 is provided above the first stem pulling roller 111 , and the second straw chain 132 is provided above the second stem pulling roller 112 . The first gear 31 connects the third bevel gear set 341 and the fourth bevel gear set 342. The third bevel gear set 341 drives the first straw chain 131 to work, and the fourth bevel gear set 342 drives the second straw chain 132 to work. Specifically, the first gear 31 transmits power to the third bevel gear set 341 and the fourth bevel gear set 342. The third bevel gear set 341 is used to drive the first straw chain 131 to work, and the fourth bevel gear set 342 is used to drive the second straw chain 132 to work. The third slave bevel gear 3412 of the third bevel gear set 341 rotates coaxially with the first straw sprocket 3431, thereby driving the first straw chain 131 to work; the fourth slave bevel gear 3422 of the fourth bevel gear set 342 rotates coaxially with the second straw sprocket 3432, thereby driving the second straw chain 132 to work.

[0055] By setting up a harvesting table transmission system 100, the input gear 21 on the driving shaft 2 drives the first gear 31 to rotate through the input idler gear 23, and the first gear 31 drives the stem pulling roller driving mechanism 32, the blade throwing driving mechanism 33 and the straw chain driving mechanism 34 to work, thereby realizing ear picking. This harvesting table transmission system 100 has stable output and high transmission efficiency, can effectively improve the crop harvesting efficiency, and ensure the stable operation of the harvesting table 200.

[0056] Preferably, a spline shaft 24 is provided on the left and right sides of the input gear 21 on the driving shaft 2, and an active clutch 25 is provided on the driving shaft 2. The active clutch 25 is covered on any of the spline shafts 24 on the left and right sides to limit the rotation of the driving shaft 2. In order to ensure the stable operation of the transmission structure during the harvesting process, an active clutch 25 is provided. The role of the active clutch 25 here is to ensure the safety of the power output of the cutting table 200, that is, a safety clutch. When the resistance of the cutting table 200 transmission is greater than the force transmitted by the driving shaft 2, the active clutch 25 brakes to ensure the safety of each component.

[0057] Preferably, the blade-flinging driving mechanism 33 includes a blade-flinging shaft 333 and a blade-flinging bevel gear set 334 connected to the blade-flinging shaft 333, the blade-flinging bevel gear set 334 includes a blade-flinging main bevel gear 3341 and a blade-flinging slave bevel gear 3342, the blade-flinging slave gear 332 is arranged on the blade-flinging shaft 333, the blade-flinging main bevel gear 3341 rotates coaxially with the blade-flinging slave gear 332, the blade-flinging slave bevel gear 3342 is connected to the blade-flinging 12, and the blade-flinging slave bevel gear 3342 drives the blade-flinging 12 to work.

[0058] The blade-flinging shaft 333 is connected to the blade-flinging slave gear 332, and the blade-flinging slave gear 332 drives the blade-flinging shaft 333 to rotate. At the same time, the blade-flinging driving mechanism 33 also includes a blade-flinging bevel gear set 334. The blade-flinging main bevel gear 3341 is connected to the blade-flinging shaft 333 and rotates synchronously with the blade-flinging slave gear 332. At the same time, the blade-flinging slave bevel gear 3342 is meshed with the blade-flinging main bevel gear 3341, and the blade-flinging slave bevel gear 3342 is connected to the blade-flinging shaft 333, thereby driving the blade-flinging 12 to rotate.

[0059] Preferably, the flinging knife driving mechanism 33 comprises a clutch spring 335 connected to the flinging knife from gear 332, the clutch spring 335 is arranged on the flinging knife active shaft 2, and the clutch spring 335 controls the flinging knife main gear 331 to mesh with the flinging knife from gear 332 to realize the braking of the flinging knife driving mechanism 33. In some areas, when the crop growth is limited and the straw is too short or the straw does not need to be chopped and recycled, it is necessary to brake the flinging knife 12, that is, the flinging knife 12 stops working, therefore, a clutch spring 335 is provided to control the power connection of the flinging knife from gear 332 that drives the flinging knife 12 to work. In the present embodiment, the clutch spring 335 is selected to control the meshing of the flinging knife main gear 331 with the flinging knife from gear 332 to realize power isolation. The clutch spring 335 is arranged at the front end of the knife-flinging active shaft 2 and is retracted and extended at the front end of the active shaft 2. When the clutch spring 335 is opened, the clutch spring 335 provides elastic force to realize the engagement of the knife-flinging main gear 331 and the knife-flinging slave gear 332, and the knife-flinging 12 works normally; when the clutch spring 335 is tightened or compressed, the knife-flinging slave gear 332 and the knife-flinging main gear 331 are no longer engaged, and the knife-flinging 12 stops working.

[0060] Preferably, the blade-swinging driving mechanism 33 includes a limiting base 336, which is connected to the blade-swinging slave gear 332, and the limiting base 336 rotates to limit the position of the blade-swinging slave gear 332. The limiting base 336 rotates to limit the position of the blade-swinging slave gear 332, and the blade-swinging slave gear 332 is no longer meshed with the blade-swinging master gear 331, and the clutch spring 335 is in a tightened state.

[0061] Preferably, the limiting base 336 includes a limiting bolt 3361, and the limiting bolt 3361 abuts against the swinging blade from gear 332 to realize the braking of the swinging blade driving mechanism 33. For limiting the position of the swinging blade from gear 332, in this embodiment, a limiting bolt 3361 is provided on the limiting base 336, and the limiting base 336 rotates to control the position of the swinging blade from gear 332. Specifically, when the clutch spring 335 is in an open state, the limiting bolt 3361 does not abut against the swinging blade from gear 332, and the power provided on the driving shaft 2 can be transmitted to the swinging blade 12, and the swinging blade 12 works; when the clutch spring 335 is in a compressed state, the limiting bolt 3361 abuts against the swinging blade from gear 332 through the rotation of the limiting base 336, and the swinging blade from gear 332 and the swinging blade main gear 331 are no longer engaged, that is, the power provided on the driving shaft 2 is cut off here, and the swinging blade 12 no longer works. It should be noted that for the rotation control method of the limit base 336, that is, the clutch method of controlling the blade-flinging main gear 331 and the blade-flinging slave gear 332, mechanical drive, electric drive, and hydraulic drive can be selected, such as setting an operating handle and a drive circuit to realize the power transmission control of the blade-flinging drive mechanism 33, which will not be explained one by one here.

[0062] Preferably, the third main bevel gear 3411 and the fourth main bevel gear 3421 are connected to the first gear 31 and the third main bevel gear 3411 and the fourth main bevel gear 3421 rotate coaxially. In order to achieve stable and efficient operation of the reel chain 13, the third main bevel gear 3411 of the first reel chain 131 and the fourth main bevel gear 3421 of the second reel chain 132 are driven to be coaxially connected to achieve synchronous rotation.

[0063] Preferably, the input gear 21 and the input idler gear 23 are arranged on the gear mounting seat 26. The input gear 21 and the input idler gear 23 are the main power transmission gears in this embodiment. The stability of their structures is related to the stability of the entire transmission system. In order to ensure that the power provided by the driving shaft 2 can be efficiently and stably transmitted to each component and drive the ear picking unit 1 to work, a gear mounting seat 26 is provided to achieve the meshing of the input gear 21 and the input idler gear 23 to ensure the stability of power transmission.

[0064] Preferably, in this embodiment, the driving shaft 2 is a hexagonal shaft. Specifically, the hexagonal shaft has the advantage of being easy to process, and the hexagonal shaft can better transmit torque, and the active clutch 25 is more reliable to use. At the same time, the through-type transmission hexagonal shaft is used in this embodiment, which can adapt to the needs of different regions and different row spacings of crops during the harvesting process, and the parts are universal.

[0065] The embodiment of the present application further provides a harvester header 200, comprising the header transmission system 100 as described above.

[0066] By setting up a harvester transmission system 00, the power of the components of the ear picking unit 1 is integrated, that is, the power transmission of the straw chain 13, the stem pulling roller 11 and the flinging knife 12 is synchronized, so as to improve the transmission efficiency of the cutting table 200 and the operation efficiency of the harvester. The cutting table transmission system 100 provided by the present application is safe and reliable, and the active clutch 25 ensures the stable, efficient and safe operation of the components in the cutting table 200. At the same time, the cutting table 200 includes at least one cutting table transmission system 100 described in the embodiment of the present application, which can adapt to the harvesting requirements of different regions and different row spacings of different crops, and has good versatility and strong adaptability.

[0067] It will be apparent to those skilled in the art that various modifications and variations can be made to the above exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention covers modifications and variations of the present invention that fall within the scope of the appended claims and their equivalent technical solutions.

Claims

1. A header transmission system, characterized in that: include: The ear picking unit includes a stem pulling roller, a flinging knife, and a straw pulling chain. With the forward direction of the harvester as the front, the stem pulling roller includes a first stem pulling roller arranged on the left and a second stem pulling roller arranged on the right, and the flinging knife is arranged on the right side of the second stem pulling roller; the straw pulling chain is arranged above the stem pulling roller, and includes a first straw pulling chain arranged above the first stem pulling roller and a second straw pulling chain arranged above the second stem pulling roller; A driving shaft, wherein an input gear is arranged on the driving shaft; An input idler shaft, on which an input idler is disposed, and the input gear meshes with the input idler; A transmission unit, wherein the transmission unit is connected to the input gear, the input gear inputs power to the transmission unit, the transmission unit is connected to the ear picking unit, the ear picking unit receives the power provided by the driving shaft, and drives the stem pulling roller, the flinging knife, and the grain pulling chain to work; The transmission unit comprises: A first gear, the input idler gear is meshed with the first gear, power is transmitted to the input idler gear through the input gear, and then the power is transmitted to the first gear after the rotation direction is changed by the input idler gear; A stem-pulling roller driving mechanism, the stem-pulling roller driving mechanism comprising a first bevel gear set and a second bevel gear set connected to the first gear, the first bevel gear set comprising a first main bevel gear and a first slave bevel gear, the second bevel gear set comprising a second main bevel gear and a second slave bevel gear; the first main bevel gear rotates coaxially with the first gear, the first slave bevel gear is connected to the first stem-pulling roller, and the first main bevel gear is meshed with the first slave bevel gear; the second main bevel gear rotates coaxially with the first gear, the second slave bevel gear is connected to the second stem-pulling roller, and the second main bevel gear is meshed with the second slave bevel gear; the second bevel gear set is connected to the second stem-pulling roller; A knife-fling driving mechanism, wherein the knife-fling driving mechanism is connected to the second bevel gear set, and comprises a knife-fling main gear coaxially rotating with the second bevel gear set, and a knife-fling slave gear meshing with the knife-fling main gear, wherein the knife-fling main gear and the knife-fling slave gear drive the knife-fling to work; A reed chain driving mechanism, the reed chain driving mechanism includes a third bevel gear set and a fourth bevel gear set connected to the first gear, the third bevel gear set includes a third main bevel gear and a third slave bevel gear, the third slave bevel gear rotates coaxially with the first reed sprocket to drive the first reed chain to work; the fourth bevel gear set includes a fourth main bevel gear and a fourth slave bevel gear, the fourth slave bevel gear rotates coaxially with the second reed sprocket to drive the second reed chain to work.

2. A header transmission system according to claim 1, characterized in that: Spline shafts are respectively arranged on the left and right sides of the input gear on the driving shaft, and an active clutch is arranged on the driving shaft. The active clutch cover is arranged on any one of the spline shafts on the left and right sides to limit the rotation of the driving shaft.

3. A header transmission system as claimed in claim 2, characterized in that: The knife-flinging driving mechanism includes a knife-flinging shaft and a knife-flinging bevel gear group connected to the knife-flinging shaft, the knife-flinging bevel gear group includes a knife-flinging main bevel gear and a knife-flinging slave bevel gear, the knife-flinging slave gear is arranged on the knife-flinging shaft, the knife-flinging main bevel gear rotates coaxially with the knife-flinging slave gear, the knife-flinging slave bevel gear is connected to the knife-flinging, and the knife-flinging slave bevel gear drives the knife-flinging to work.

4. A header transmission system as claimed in claim 3, characterized in that: The knife-flinging driving mechanism includes a clutch spring connected to the knife-flinging slave gear, the clutch spring is arranged on the knife-flinging active shaft, and the clutch spring controls the knife-flinging main gear to mesh with the knife-flinging slave gear to achieve braking of the knife-flinging driving mechanism.

5. A header transmission system as claimed in claim 4, characterized in that: The knife-fling driving mechanism includes a limiting base, which is connected to the knife-fling slave gear. The limiting base rotates to limit the position of the knife-fling slave gear.

6. A header transmission system as claimed in claim 5, characterized in that: The limiting base includes a limiting bolt, and the limiting bolt abuts against the swinging knife slave gear to realize the braking of the swinging knife driving mechanism.

7. A header transmission system as claimed in claim 6, characterized in that: The third main bevel gear and the fourth main bevel gear are connected to the first gear and the third main bevel gear and the fourth main bevel gear rotate coaxially.

8. A header transmission system as claimed in claim 7, characterized in that: The input gear and the input idler gear are arranged on a gear mounting seat.

9. A header transmission system as claimed in claim 8, characterized in that: The driving shaft is a hexagonal shaft.

10. A harvester header, characterized in that: It comprises a harvesting platform transmission system as described in any one of claims 1 to 9.

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