Double-moving-cutter cutter and harvester

Abstract

The utility model relates to the technical field of agricultural instruments, discloses a double-moving-cutter cutter and a harvester, and aims to solve the problem of poor coordination between two groups of moving blades of a double-moving-cutter structure. The double-moving-cutter combination of the double-moving-cutter cutter comprises a first moving cutter set and a second moving cutter set. A first driving wheel of the first driving mechanism is in transmission connection with the first movable cutter set through a first crank assembly. A second driving shaft of the second driving mechanism is in transmission connection with the second movable cutter set through a second crank assembly. One end of the transmission shaft is in transmission connection with the first driving wheel, and the other end of the transmission shaft is in transmission connection with the second driving wheel, so that the first crank assembly and the second crank assembly drive the first movable cutter set and the second movable cutter set to synchronously and reversely cut. Through driving of the first driving component and the second driving component which are synchronously driven by the transmission shaft, the double-moving-cutter combination can reach or be approximately in a dynamic balance state in the reciprocating cutting motion process, so that the first moving cutter set and the second moving cutter set can offset impulse mutually, and overall vibration is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a double-moving knife cutter and a harvester. Background Art

[0002] A harvester is an integrated machine for harvesting crops. It has the operation process of harvesting, threshing, and collecting the grains into a storage bin. Then, the grains and other food can be transported to a preset location or a transport vehicle through a transmission structure.

[0003] During the harvesting process, the harvester cuts the rice plants through the reciprocating motion between the moving blade and the fixed blade. The reciprocating motion of the moving blade generates inertia force and impact load, which causes resonance in other moving parts of the whole machine.

[0004] In the related art, the reciprocating motion of the double movable blade structure can be used to reduce the resonance phenomenon of the whole machine. However, due to the poor coordination between the two sets of movable blades of the double movable blade structure, the resonance phenomenon of the whole machine cannot be effectively reduced, and may even aggravate the resonance phenomenon of the whole machine. Utility Model Content

[0005] In view of this, the utility model provides a double-moving blade cutter and a harvester to solve the problem of poor coordination between two sets of moving blades in a double-moving blade structure.

[0006] On the one hand, the utility model provides a double movable knife cutter, including a double movable knife combination, a first drive mechanism, a second drive mechanism and a transmission shaft. The double movable knife combination includes a first movable knife group and a second movable knife group. The first drive mechanism includes a first drive wheel and a first crank assembly, and the first drive wheel is connected to the first movable knife group through the first crank assembly. The second drive mechanism includes a second drive shaft and a second crank assembly, and the second drive shaft is connected to the second movable knife group through the second crank assembly. One end of the transmission shaft is connected to the first drive wheel, and the other end of the transmission shaft is connected to the second drive shaft, so that the first crank assembly and the second crank assembly drive the first movable knife group and the second movable knife group to synchronously reverse cutting motion.

[0007] Beneficial effects: The first drive wheel can convert the rotational motion into a reciprocating telescopic motion through the first crank assembly, and the second drive shaft can also convert the rotational motion into a reciprocating telescopic motion through the second crank assembly. Since the first drive wheel and the second drive shaft are synchronously connected through the transmission shaft, the first crank assembly and the second crank assembly can be synchronously moved in the same direction or synchronously moved in opposite directions by adjusting the configuration. Combined with the difference in the structure and installation position of the first crank assembly and the second crank assembly, the synchronous movement of the first crank assembly and the second crank assembly in the same direction or synchronous movement in opposite directions can realize the synchronous reverse cutting movement of the first moving knife group and the second moving knife group.

[0008] The first moving knife group generates inertia force and impact load during the cutting movement, and the second moving knife group also generates reverse inertia force and reverse impact load during the synchronous reverse cutting movement. Since the two inertia forces and the two impact loads in opposite directions at least partially offset each other, the inertia force and impact load generated by the double moving knife combination during the reciprocating cutting movement are greatly reduced. Even when the two reverse inertia forces are equal or approximately equal in magnitude, and the two reverse impact loads are equal or approximately equal in magnitude, the double moving knife combination will not generate inertia force and impact load during the reciprocating cutting movement or will be almost zero.

[0009] In this way, the double moving knife combination can reach a dynamic balance state or a state close to dynamic balance state during the reciprocating cutting motion, so that the first moving knife group and the second moving knife group can offset each other's impulses and reduce the overall vibration, and have a better coordination state, thereby achieving the effect of offsetting the load impulse and reducing the vibration amplitude, so as to avoid resonance with other moving parts of the whole machine. This is conducive to improving the use experience and service life of the double moving knife cutter, and improving the stability of the whole machine.

[0010] In an optional embodiment, the first driving mechanism further comprises a first driving shaft, and the first driving shaft and the second driving shaft are spaced apart along the axial direction of the transmission shaft. Along the axial direction of the transmission shaft, the first driving shaft is provided with a first driving wheel at one end away from the second driving mechanism, and the second driving shaft is transmission-connected to the other end of the transmission shaft at one end close to the first driving mechanism.

[0011] Beneficial effect: Since the length of the transmission shaft is smaller than the axial spacing between the two ends of the first drive shaft and the second drive shaft that are far away from each other, it saves material and facilitates the flexible arrangement of the installation position of the transmission shaft along the radial direction of the first drive shaft.

[0012] In an optional embodiment, along the axial direction of the transmission shaft, at least one of an end of the first drive shaft close to the second drive mechanism and an end of the second drive shaft close to the first drive mechanism is configured as a power input end.

[0013] Beneficial effect: By setting at least one of the end of the first drive shaft close to the second drive mechanism and the end of the second drive shaft close to the first drive mechanism as the power input end, with the cooperation of the transmission shaft, the first drive wheel and the second drive wheel can rotate synchronously to drive the double movable knife combination to perform synchronous reverse cutting movement.

[0014] In an optional embodiment, the second driving mechanism includes a second driving wheel, and one end of the second driving shaft close to the first driving mechanism is transmission-connected to the second driving wheel, and the second driving wheel is configured as a power input end.

[0015] Beneficial effect: By setting the second driving wheel as the power input end, through the transmission connection of the second drive shaft, the second drive wheel, the second transmission wheel, the transmission shaft, the first transmission wheel and the first drive wheel, the second drive wheel and the first drive wheel can be made to rotate synchronously, thereby driving the second moving knife group and the first moving knife group to perform synchronous reverse cutting movements.

[0016] In an optional embodiment, the first driving mechanism includes a first driving wheel and an auger driving wheel. One end of the first driving shaft close to the second driving mechanism is connected to the first driving wheel, and the first driving wheel is configured as a power input end. One end of the first driving shaft away from the second driving mechanism is connected to the auger driving wheel to drive the cutter auger to rotate.

[0017] Beneficial effect: the first driving mechanism is used to drive the cutting table auger to rotate.

[0018] In an optional embodiment, the first driving mechanism further includes a driving bearing, and the first driving wheel is connected to the first driving shaft via the driving bearing.

[0019] Beneficial effect: At the end of the first drive shaft away from the first driving wheel, the first drive wheel is connected to the end of the first drive shaft through a drive bearing, which is used for positioning and installing the first drive wheel, but the drive bearing avoids the transmission connection between the first drive shaft and the first drive wheel. By setting the first drive wheel and the first drive shaft to be non-transmission connected, it can be avoided that the first drive shaft drives the first moving knife group and the cutting table auger to rotate at the same time, so as to achieve differential transmission between the double moving knife combination and the cutting table auger. At this time, the first drive shaft has a smaller transmission load, which is conducive to improving the overall stability of the first drive assembly.

[0020] In an optional embodiment, the first drive wheel is drivingly connected to the first drive shaft.

[0021] Beneficial effect: the first driving wheel is directly connected to the first driving shaft in driving connection, that is, there is no need to set a differential transmission between the double moving knife combination and the cutting table auger, and the structure is simple.

[0022] In an optional embodiment, the first transmission wheel and the second transmission wheel are transmission-connected at both ends of the transmission shaft. The first transmission wheel is transmission-connected to the first drive wheel. The second drive mechanism includes a second drive wheel, and along the axial direction of the transmission shaft, one end of the second drive shaft close to the first drive mechanism is transmission-connected to the second drive wheel, and the second transmission wheel is transmission-connected to the second drive wheel, so that the first drive wheel and the second drive wheel rotate synchronously.

[0023] Beneficial effect: Through the transmission connection between the first transmission wheel and the first drive wheel, and the transmission connection between the second transmission wheel and the second drive wheel, it is convenient to flexibly arrange the installation position of the transmission shaft in the radial direction of the first drive shaft.

[0024] In an optional embodiment, the first crank assembly includes an eccentric member, a first connecting rod and a first rocker member. The first driving wheel is connected to the eccentric member at a position away from the axis, and the eccentric member is connected to the first moving knife assembly through the first connecting rod and the first rocker member.

[0025] And / or, the second crank assembly includes an eccentric wheel, a second connecting rod and a second rocker arm. Along the axial direction of the transmission shaft, one end of the second drive shaft away from the first drive mechanism is connected to the eccentric wheel in a transmission manner, and the eccentric wheel is connected to the second moving knife group through the second connecting rod and the second rocker arm, so that the first moving knife group and the second moving knife group can synchronously cut in opposite directions along the axial direction of the transmission shaft.

[0026] Beneficial effect: The first driving wheel drives the first moving knife group to reciprocate cutting motion in the left and right directions through the eccentric member, the first connecting rod and the first rocker member, and the second driving wheel drives the second moving knife group to reciprocate cutting motion in the left and right directions through the eccentric member, the second connecting rod and the second rocker member. Since the first driving wheel rotates synchronously with the second driving wheel, and the second driving wheel is synchronously driven with the eccentric wheel through the second driving shaft, the first crank assembly and the second crank assembly can be configured on both sides of the cutting table body as two sets of components that are approximately symmetrically arranged on the left and right, so that the first moving knife group and the second moving knife group driven by the first crank assembly and the second crank assembly can synchronously cut in the opposite direction along the axial direction of the transmission shaft, which is conducive to reducing or offsetting the inertia force and impact load of the double moving knife combination.

[0027] On the other hand, the utility model provides a harvester, comprising the double-moving blade cutter of any one of the above aspects.

[0028] Beneficial effects: Since the harvester includes the double-moving blade cutter of the above aspect, the harvester has all the beneficial effects of the above double-moving blade cutter, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 This is a front view of a double-moving knife cutter according to an embodiment of the utility model;

[0031] Figure 2 A schematic diagram of the transmission structure of a double-moving knife cutter according to an embodiment of the utility model;

[0032] Figure 3 for Figure 1An exploded structural schematic diagram of a double-moving knife cutter is shown;

[0033] Figure 4 for Figure 3 A partial structural schematic diagram of the right end of the second drive shaft is shown in;

[0034] Figure 5 for Figure 3 A partial enlarged view of the middle A;

[0035] Figure 6 for Figure 3 A partial enlarged view of point B in the middle;

[0036] Figure 7 for Figure 3 A partial structural schematic diagram of the second driving wheel shown in ;

[0037] Figure 8 for Figure 3 A schematic diagram of a connection structure between the second crank assembly and the double moving knife group is shown in;

[0038] Fig. 9 for Figure 6 A side view of the connection between the first rocker arm and the first connecting rod shown in ;

[0039] Fig.10 It is a structural schematic diagram of another first crank assembly of an embodiment of the utility model;

[0040] Fig.11 for Figure 3 The double-moving knife cutter shown includes an exploded structural schematic diagram of a reel;

[0041] Fig.12 for Fig.11 A partial enlarged view of point C in the middle;

[0042] Fig.13 for Figure 3 A partial enlarged view of point D in the middle;

[0043] Fig.14 A top view of the double-moving knife assembly of the utility model embodiment;

[0044] Fig.15 for Fig.14 A cross-sectional view of the double-moving knife assembly shown;

[0045] Fig.16 for Figure 3 A side view of the double-moving knife cutter shown.

[0046] Description of reference numerals:

[0047] 100. Double-action knife cutter;

[0048] 10. Double moving knife combination; 11. First moving knife group; 12. Second moving knife group; 13. First blade guard; 14. Second blade guard;

[0049] 20. First drive mechanism; 21. First drive assembly; 211. First drive wheel; 212. First drive shaft; 213. First driving wheel; 214. Agitator drive wheel; 215. Drive bearing; 22. First crank assembly; 221. Eccentric member; 222. First connecting rod; 223. First rocker arm member; 224. First direction-changing shaft;

[0050] 30. Second drive mechanism; 31. Second drive assembly; 311. Second drive shaft; 312. Second drive wheel; 313. Second driving wheel; 32. Second crank assembly; 321. Eccentric wheel; 322. Second connecting rod; 323. Second rocker arm;

[0051] 40. Transmission mechanism; 41. Transmission shaft; 42. First transmission wheel; 43. Second transmission wheel;

[0052] 50. Cutting table;

[0053] 61. Cutting platform auger; 62. Reed wheel; 63. Auger drive wheel; 64. Second reed drive wheel

[0054] 70. The reel-pulling transmission mechanism; 71. The reel-pulling rotating shaft; 72. The reel-pulling driving wheel; 73. The first reel-pulling transmission wheel. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0056] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0057] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0058] Combine the following Figures 1 to 16 , describing an embodiment of a double-moving knife cutter and a harvester provided by the utility model.

[0059] like Figure 1 , Figure 2 and Figure 3 As shown, on the one hand, the embodiment of the utility model provides a double movable knife cutter 100, which includes a double movable knife assembly 10, a first drive mechanism 20, a second drive mechanism 30 and a transmission shaft 41. The double movable knife assembly 10 includes a first movable knife group 11 and a second movable knife group 12. The first drive mechanism 20 includes a first drive wheel 211 and a first crank assembly 22, and the first drive wheel 211 is connected to the first movable knife group 11 through the first crank assembly 22. The second drive mechanism 30 includes a second drive shaft 311 and a second crank assembly 32, and the second drive shaft 311 is connected to the second movable knife group 12 through the second crank assembly 32. One end of the transmission shaft 41 is connected to the first drive wheel 211, and the other end of the transmission shaft 41 is connected to the second drive shaft 311, so that the first crank assembly 22 and the second crank assembly 32 drive the first movable knife group 11 and the second movable knife group 12 to synchronously cut in the opposite direction.

[0060] The first movable knife group 11 and the second movable knife group 12 can be in contact or fitted in the up-down direction, and the first movable knife group 11 and the second movable knife group 12 can be driven to reciprocate in the left-right direction to cut the rice plants. That is, the first movable knife group 11 and the second movable knife group 12 can be extended in the left-right direction (such as the axial direction of the transmission shaft 41, that is, the length direction).

[0061] The first driving mechanism 20 and the second driving mechanism 30 may be arranged close to each other in the left-right direction, or may be arranged spaced apart or opposite to each other in the left-right direction.

[0062] The first driving wheel 211 can convert the rotational motion into a reciprocating telescopic motion through the first crank assembly 22, and the second driving shaft 311 can also convert the rotational motion into a reciprocating telescopic motion through the second crank assembly 32. Since the first driving wheel 211 and the second driving shaft 311 are synchronously connected through the transmission shaft 41, the first crank assembly 22 and the second crank assembly 32 can be synchronously moved in the same direction or synchronously moved in opposite directions by adjusting the configuration. Combined with the difference in the structure and installation position of the first crank assembly 22 and the second crank assembly 32, the synchronous movement of the first crank assembly 22 and the second crank assembly 32 in the same direction or synchronous movement in opposite directions can realize the synchronous reverse cutting movement of the first movable knife group 11 and the second movable knife group 12.

[0063] The first movable knife group 11 generates inertia force and impact load during the cutting movement, and the second movable knife group 12 also generates reverse inertia force and reverse impact load during the synchronous reverse cutting movement. Since the two inertia forces and the two impact loads in opposite directions at least partially offset each other, the inertia force and impact load generated by the double movable knife assembly 10 during the reciprocating cutting movement are greatly reduced. Even when the two reverse inertia forces are equal or approximately equal in magnitude, and the two reverse impact loads are equal or approximately equal in magnitude, the double movable knife assembly 10 will not generate inertia force and impact load during the reciprocating cutting movement or will generate almost zero inertia force and impact load.

[0064] In this way, the double movable blade assembly 10 can reach a dynamic balance state or a state close to a dynamic balance state during the reciprocating cutting motion, so that the first movable blade assembly 11 and the second movable blade assembly 12 can offset each other's impulses and reduce the overall vibration, and have a good coordination state, thereby achieving the effect of offsetting the load impulse and reducing the vibration amplitude, so as to avoid resonance with other moving parts of the whole machine. This is conducive to improving the use experience and service life of the double movable blade cutter 100, and improving the stability of the whole machine.

[0065] It should be noted that if Figure 1 and Figure 2 As shown, the first driving mechanism 20 includes a first driving assembly 21, and the first driving wheel 211 is a part of the first driving assembly 21. Correspondingly, the second driving mechanism 30 includes a second driving assembly 31, and the second driving shaft 311 is a part of the second driving assembly 31. Unless otherwise specified, the components of the first driving assembly 21 can be regarded as a part of the first driving mechanism 20, and the components of the second driving assembly 31 can be regarded as a part of the second driving mechanism 30.

[0066] In some embodiments, Figure 2As shown, the first drive assembly 21 further includes a first drive shaft 212, and the first drive shaft 212 and the second drive shaft 311 are spaced apart along the axial direction of the transmission shaft 41. Along the axial direction of the transmission shaft 41, the first drive shaft 212 is provided with a first drive wheel 211 at one end away from the second drive mechanism 30, and the second drive shaft 311 is transmission-connected to the other end of the transmission shaft 41 at one end close to the first drive mechanism 20.

[0067] Reference Figure 1 and Figure 3 The double-moving blade cutter 100 also includes a cutting table body 50, and a accommodating cavity is provided on the front side of the cutting table body 50. The double-moving blade cutter 100 also includes a cutting table agitator 61, which is installed in the accommodating cavity, and the rotating cutting table agitator 61 is used to gather the sheared rice plants to the feed port at the rear of the accommodating cavity, so that the sheared rice plants can be transported backward through the feed port.

[0068] like Figures 1 to 3 As shown, the cutting table body 50 includes a harvesting part provided with a receiving cavity and a connecting part connected to the rear opening of the receiving cavity. Taking the axial direction of the transmission shaft 41 as an example, the width dimension of the harvesting part in the left-right direction is greater than the width dimension of the connecting part in the left-right direction. At the rear side of the harvesting part, the first drive assembly 21 is arranged on the right side of the connecting part, and the second drive assembly 31 is arranged on the left side of the connecting part.

[0069] Exemplarily, on the rear side of the harvesting part, the first drive shaft 212 located on the right side of the connecting part extends along the left-right direction, the second drive shaft 311 located on the left side of the connecting part extends along the left-right direction, and the first drive shaft 212 and the second drive shaft 311 are spaced apart along the left-right direction.

[0070] Based on this, the right end of the first drive shaft 212 is provided with a first drive wheel 211, which is used to drive the first movable knife group 11 to reciprocate cutting motion through the first crank assembly 22. The left end of the second drive shaft 311 drives the second movable knife group 12 to reciprocate cutting motion through the second crank assembly 32. The right end of the second drive shaft 311 is transmission-connected to the left end of the transmission shaft 41, and the first drive wheel 211 is transmission-connected to the right end of the transmission shaft 41, that is, the length dimension of the transmission shaft 41 is smaller than the spacing dimension from the right end of the first drive shaft 212 to the left end of the second drive shaft 311 in the left-right direction. In addition, through the transmission connection of the transmission shaft 41, the second drive shaft 311 and at least the first drive wheel 211 are synchronously rotated, thereby driving the first movable knife group 11 and the second movable knife group 12 to synchronously cut in the opposite direction.

[0071] Since the length of the transmission shaft 41 is smaller than the spacing from the right end of the first drive shaft 212 to the left end of the second drive shaft 311 in the left-right direction, the installation position of the transmission shaft 41 can be flexibly arranged along the radial direction of the first drive shaft 212 while saving materials.

[0072] In some embodiments, Figures 1 to 4 As shown, the transmission mechanism 40 also includes a first transmission wheel 42 and a second transmission wheel 43, and the first transmission wheel 42 and the second transmission wheel 43 are transmission-connected at both ends of the transmission shaft 41, so that the first transmission wheel 42 can be driven by the transmission shaft 41 to rotate synchronously with the second transmission wheel 43. Correspondingly, the second drive assembly 31 includes a second drive wheel 312, and along the axial direction of the transmission shaft 41, one end of the second drive shaft 311 close to the first drive mechanism 20 is transmission-connected to the second drive wheel 312. The first transmission wheel 42 is transmission-connected to the first drive wheel 211, and the second transmission wheel 43 is transmission-connected to the second drive wheel 312, so that the first drive wheel 211 and the second drive wheel 312 rotate synchronously.

[0073] Through the transmission connection between the first transmission wheel 42 and the first drive wheel 211 , and the transmission connection between the second transmission wheel 43 and the second drive wheel 312 , the installation position of the transmission shaft 41 can be flexibly arranged in the radial direction of the first drive shaft 212 .

[0074] It should be noted that, since the first driving wheel 211 and the second driving wheel 312 rotate synchronously through the transmission mechanism 40, the transmission connection between the first driving wheel 211 and the first transmission wheel 42 can be a transmission connection of gear meshing, a transmission connection of a sprocket structure, or a transmission connection using a synchronous pulley, so as to avoid slippage between the first transmission wheel 42 and the first driving wheel 211.

[0075] Correspondingly, the transmission wheel connection between the second transmission wheel 43 and the second drive wheel 312 can be a transmission connection of gear meshing, a transmission connection of a sprocket structure, or a transmission connection using a synchronous pulley, so as to avoid slippage between the second transmission wheel 43 and the second drive wheel 312 and make the first drive wheel 211 and the second drive wheel 312 rotate synchronously.

[0076] In some embodiments, Figures 2 to 4 As shown, along the axial direction of the transmission shaft 41 , at least one of an end of the first drive shaft 212 close to the second drive mechanism 30 and an end of the second drive shaft 311 close to the first drive mechanism 20 is configured as a power input end.

[0077] Since one end of the first drive shaft 212 close to the second drive mechanism 30 and one end of the second drive shaft 311 close to the first drive mechanism 20 are arranged close to the connection part on the left and right sides of the cutting table 50, it is convenient to drive and connect with any of the two ends through the belt transmission devices on the left and right sides of the connection part, so as to drive the first moving knife group 11 and the second moving knife group 12 to synchronously cut in opposite directions.

[0078] In actual application, Figure 1 and Figure 2 As shown, the second crank assembly 32 and the first crank assembly 22 are respectively arranged on the left and right sides of the harvesting section. That is, the first crank assembly 22 is used to transmit the power at the first drive wheel 211 to the right front of the harvesting section, and convert the rotational power into a left-right reciprocating power, so as to drive the first movable knife group 11 to reciprocate in the left-right direction for cutting the rice plants. The second crank assembly 32 is used to transmit the power at the second drive shaft 311 to the left front of the harvesting section, and convert the rotational power into a left-right reciprocating power, so as to drive the second movable knife group 12 to reciprocate in the left-right direction, and make the first movable knife group 11 and the second movable knife group 12 synchronously cut in the opposite direction in the left-right direction, so as to reduce the inertia force and impact load of the double movable knife combination 10 while cutting the rice plants.

[0079] Furthermore, by arranging the second drive mechanism 30 and the first drive mechanism 20 on the left and right sides of the cutting table 50 respectively, the second movable knife group 12 and the first movable knife group 11 are driven to synchronously perform opposite cutting movements, so that the two sets of drive components of the double movable knife assembly 10 are relatively evenly distributed on the left and right sides of the cutting table 50. This solves the problem of changing from single-side transmission to double-side transmission, saves space and cost, and is conducive to improving the stability of the structure, thereby improving the use experience and service life of the equipment.

[0080] Alternatively, the first driving mechanism 20 may be disposed on the left side of the cutting table 50 , and the second driving mechanism 30 may be disposed close to the right side of the cutting table 50 , which is not limited thereto.

[0081] like Figures 1 to 3 As shown, the power device of the harvester drives the first drive assembly 21 and / or the second drive assembly 31 through the belt transmission structure on the left and right sides of the connection part, which has the characteristics of simple structure and high reliability. Exemplarily, one of the first drive assembly 21 and the second drive assembly 31 can be set as a power input end to drive the double movable blade assembly 10 to cut. Alternatively, the first drive assembly 21 and the second drive assembly 31 can also be set as power input ends at the same time, which can also drive the double movable blade assembly 10 to cut.

[0082] In some embodiments, Figure 2 and Figure 4 As shown, the second driving assembly 31 includes a second driving wheel 313 , and one end of the second driving shaft 311 close to the first driving mechanism 20 is drivingly connected to the second driving wheel 313 , and the second driving wheel 313 is configured as a power input end.

[0083] Among them, along the axial direction of the second driving shaft 311, the second driving wheel 313 can be located on the side of the second driving wheel 312 close to the first driving assembly 21. Alternatively, along the axial direction of the second driving shaft 311, the second driving wheel 312 can also be arranged on the side of the second driving wheel 313 close to the first driving assembly 21. Flexible configuration can be performed according to actual conditions.

[0084] In this way, by setting the second driving wheel 313 as the power input end, through the transmission connection of the second driving shaft 311, the second driving wheel 312, the second transmission wheel 43, the transmission shaft 41, the first transmission wheel 42 and the first driving wheel 211, the second driving wheel 312 and the first driving wheel 211 can be made to rotate synchronously, thereby driving the second moving knife group 12 and the first moving knife group 11 to perform synchronous reverse cutting movements.

[0085] In some embodiments, Figure 2 , Figure 3 and Figure 5 As shown, the first drive assembly 21 includes a first driving wheel 213 and an auger driving wheel 214. The end of the first drive shaft 212 close to the second drive assembly 31 is connected to the first driving wheel 213, and the first driving wheel 213 is configured as a power input end. The end of the first drive shaft 212 away from the second drive assembly 31 is connected to the auger driving wheel 214, which is used to drive the cutting platform auger 61 to rotate.

[0086] By setting a first driving wheel 213 at the power input end at one end of the first driving shaft 212, the second driving wheels 312 and the first driving wheel 211 on the left and right sides of the cutting table 50 can be synchronously rotated through the transmission connection of the first driving assembly 21, the first transmission wheel 42, the transmission shaft 41, the second transmission wheel 43 and the second driving wheel 312, thereby driving the second moving knife group 12 and the first moving knife group 11 to synchronously cut in the opposite direction. On this basis, by transmission connection with the auger driving wheel 214 at one end of the first driving shaft 212 away from the first driving wheel 213, the first driving assembly 21 can also drive the cutting table auger 61 to rotate.

[0087] In some embodiments, Figure 2 and Figure 5 As shown, the first driving assembly 21 further includes a driving bearing 215 , and the first driving wheel 211 is connected to the first driving shaft 212 via the driving bearing 215 .

[0088] For example, Figure 5As shown, the right end of the first drive shaft 212 is positioned and connected to the rear side of the harvesting part in the cutting table body 50 through a bearing seat, and at the end of the first drive shaft 212 extending to the right, the auger drive wheel 214 and the first drive wheel 211 are connected from left to right. The difference is that the auger drive wheel 214 and the first drive shaft 212 are connected by transmission, so as to avoid the rotation slip between the two. The first drive wheel 211 is connected to the first drive shaft 212 through a drive bearing 215, that is, the first drive wheel 211 can rotate more flexibly than the first drive shaft 212.

[0089] At one end of the first drive shaft 212 away from the first driving wheel 213, the first drive wheel 211 is connected to the end of the first drive shaft 212 through a drive bearing 215, which is used for positioning and installing the first drive wheel 211, but the drive bearing 215 avoids the transmission connection between the first drive shaft 212 and the first drive wheel 211. By setting a non-transmission connection between the first drive wheel 211 and the first drive shaft 212, it is possible to avoid the first drive shaft 212 driving the first moving knife group 11 and the cutting table auger 61 to rotate at the same time, so as to achieve differential transmission between the double moving knife assembly 10 and the cutting table auger 61. At this time, the first drive shaft 212 has a smaller transmission load, which is conducive to improving the overall stability of the first drive assembly 21.

[0090] It should be noted that, when the first driving wheel 211 is connected and installed with the first driving shaft 212 through the driving bearing 215, the second driving wheel 313 can be set at the right end of the second driving shaft 311. At this time, the power transmitted by the first driving wheel 213 is used to drive the cutting table auger 61 to rotate via the first driving shaft 212 and the auger driving wheel 214, and the power transmitted by the second driving wheel 313 is used to drive the double-moving knife assembly 10 to synchronously cut in the opposite direction via the second transmission shaft, the second driving wheel 312, the transmission shaft 41 and the first driving wheel 211, so as to avoid a large transmission load at the second driving shaft 311, so as to achieve a differential connection between the double-moving knife assembly 10 and the cutting table auger 61.

[0091] Furthermore, when the first driving wheel 213 and the second driving wheel 313 are both configured as power input ends, the non-transmission connection between the first driving wheel 211 and the first driving shaft 212 can avoid tooth jamming or slipping caused by asynchronous rotation between the first driving wheel 213 and the second driving wheel 313.

[0092] In some other embodiments, the first driving wheel 211 may be connected to the first driving shaft 212 in a transmission manner. For example, one end of the first driving shaft 212 away from the first driving wheel 213 may be connected to the first driving wheel 211 in a transmission manner, so that the first driving shaft 212 can simultaneously drive the double movable blade assembly 10 and the cutting table auger 61 to operate. At this time, a power input end may be synchronously set at the first driving assembly 21, that is, the first driving wheel 213 and the second driving wheel 313 may be set as equal power input ends, so that the input power is more evenly distributed on the left and right sides of the cutting table body 50. Alternatively, only the first driving wheel 213 or the second driving wheel 313 may be set as the power input end, which has a simple structure.

[0093] In some embodiments, Figure 2 , Figure 5 and Figure 6 As shown, the first crank assembly 22 includes an eccentric 221, a first connecting rod 222 and a first rocker 223. The first driving wheel 211 is connected to the eccentric 221 at a position radially away from the axis, and the eccentric 221 is connected to the first moving knife assembly 11 through the first connecting rod 222 and the first rocker 223.

[0094] Through the rotational connection between the eccentric member 221 and the first connecting rod 222, the rotational power of the first driving wheel 211 can be converted into the power of the first connecting rod 222 to reciprocate and extend approximately in the front-to-back direction (i.e., perpendicular to the axial direction of the first transmission shaft). On this basis, the middle part of the first rocker arm 223 can be rotatably installed near the right front end of the cutting table body 50, one end of the first rocker arm 223 is rotatably connected to the first connecting rod 222, and the other end of the first rocker arm 223 is rotatably connected to the first moving knife group 11, so that the power of the first connecting rod 222 to reciprocate and extend approximately in the front-to-back direction is converted into the power to reciprocate and extend approximately in the left-to-right direction (i.e., parallel to the axial direction of the first transmission shaft) through the first rocker arm 223, thereby driving the first moving knife group 11 to reciprocate in the left-to-right direction.

[0095] Correspondingly, such as Figure 2 , Figure 7 and Figure 8 As shown, the second crank assembly 32 includes an eccentric wheel 321, a second connecting rod 322 and a second rocker arm 323. Along the axial direction of the transmission shaft 41, the end of the second drive shaft 311 away from the first drive assembly 21 is connected to the eccentric wheel 321, and the eccentric wheel 321 is connected to the second movable knife group 12 through the second connecting rod 322 and the second rocker arm 323.

[0096] By the rotational connection between the eccentric shaft on the eccentric wheel 321 and the second connecting rod 322, the rotational power of the second driving shaft 311 can be converted into the power of the second connecting rod 322 to reciprocate and extend approximately in the front-to-back direction (i.e., perpendicular to the axial direction of the second transmission shaft). On this basis, the middle part of the second rocker arm 323 can be rotatably installed near the left front end of the cutting table body 50, one end of the second rocker arm 323 is rotationally connected to the second connecting rod 322, and the other two ends of the second rocker arm 323 are rotationally connected to the second movable knife group 12, so that the power of the second connecting rod 322 to reciprocate and extend approximately in the front-to-back direction is converted into the power to reciprocate and extend approximately in the left-to-right direction (i.e., parallel to the axial direction of the first transmission shaft) through the second rocker arm 323, thereby driving the second movable knife group 12 to reciprocate in the left-to-right direction.

[0097] In this way, the first driving wheel 211 drives the first movable knife group 11 to reciprocate in the left and right directions through the eccentric member 221, the first connecting rod 222 and the first rocker member 223, and the second driving wheel 312 drives the second movable knife group 12 to reciprocate in the left and right directions through the eccentric member 321, the second connecting rod 322 and the second rocker member 323. Since the first driving wheel 211 rotates synchronously with the second driving wheel 312, and the second driving wheel 312 is synchronously driven with the eccentric member 321 through the second driving shaft 311, the first crank assembly 22 and the second crank assembly 32 can be configured on the left and right sides of the cutting table body 50 as two sets of components that are approximately symmetrically arranged on the left and right sides, so that the first movable knife group 11 and the second movable knife group 12 driven by the first crank assembly 22 and the second crank assembly 32 synchronously cut in opposite directions along the left and right directions (i.e., the axial direction of the transmission shaft 41), which is conducive to reducing or offsetting the inertia force and impact load of the double movable knife assembly 10.

[0098] It should be noted that if Fig. 9 As shown, a joint bearing is provided at the front end of the first connecting rod 222 near the first rocker arm 223, and the first connecting rod 222 is rotatably connected to one end of the first rocker arm 223 through the joint bearing. Through the provision of the joint bearing, the first connecting rod 222 has a larger swing range in the process of reciprocating telescopic movement in the front-back direction compared with the first rocker arm 223, thereby avoiding the damage of components caused by large local stress between the first connecting rod 222 and the first rocker arm 223 during the transmission process.

[0099] That is to say, on the right side of the cutting table body 50, at least one of the eccentric member 221 and the first connecting rod 222, the first connecting rod 222 and the first rocker arm member 223, the first rocker arm member 223 and the cutting table body 50, and the first rocker arm member 223 and the first movable knife group 11 can be connected by a joint bearing or a bearing, which has a small friction force and is convenient for assembly and debugging of parts.

[0100] Correspondingly, on the left side of the cutting table body 50, at least one of the eccentric wheel 321 and the second connecting rod 322, the second connecting rod 322 and the second rocker arm 323, the second rocker arm 323 and the cutting table body 50, and the second rocker arm 323 and the second movable knife group 12 can also be connected by a joint bearing or a bearing, which has less friction and facilitates assembly and debugging of parts.

[0101] It should be noted that if Figure 5 As shown, a structural wheel can be arranged between the first driving wheel 211 and the eccentric member 221, and the structural wheel is transmission-connected to the first driving wheel 211. For example, the first driving wheel 211 and the structural wheel can be connected by a plurality of axially arranged screws to improve the overall structural strength of the first driving wheel 211.

[0102] For example, the structural wheel and the first driving wheel 211 can be coaxially arranged, and the eccentric 221 is fixedly connected to the structural wheel at a position away from the axis, and then the rear end of the first connecting rod 222 is rotationally connected to the eccentric 221, and its rotation axis is parallel to the axis of the first driving shaft 212.

[0103] Based on this, on the left side of the cutting table 50, the eccentric wheel 321 is equivalent to a combination structure of a wheel and an eccentric member in structure. However, since the second driving wheel 312 is located at the right end of the second driving shaft 311, at this time, the eccentric wheel 321 can be directly connected to the left end of the second driving shaft 311, so that the second driving wheel 312 can drive the eccentric wheel 321 to rotate synchronously through the second driving shaft 311, which is convenient for the synchronous reverse cutting movement of the double movable knife assembly 10.

[0104] In some other embodiments, such as Fig.10 As shown, the first crank assembly 22 may also include a first direction-changing shaft 224, an eccentric 221 and a first connecting rod 222. The first direction-changing shaft 224 is arranged vertically or approximately vertically with the first drive shaft 212, and the first drive wheel 211 is meshedly connected with the rear end of the first direction-changing shaft 224 to convert the rotation of the first drive wheel 211 in the left-right direction into the rotation of the first direction-changing shaft 224 in the front-back direction. The front end of the first direction-changing shaft 224 is connected to the moving knife driving wheel, which can rotate in the front-back direction (i.e., the axial direction of the first direction-changing shaft 224), the eccentric 221 is connected to the moving knife driving wheel at a position away from the axis thereof, one end of the first connecting rod 222 is rotatably connected with the eccentric 221, and the other end of the first connecting rod 222 is rotatably connected with the first moving knife group 11, so that the moving knife driving wheel can drive the first moving knife group 11 to reciprocate in the left-right direction through the first connecting rod 222 during the rotation process.

[0105] Correspondingly, the second crank assembly 32 may also include a second direction-changing shaft, a direction-changing wheel, an eccentric wheel 321 and a second connecting rod 322. The second direction-changing shaft is arranged vertically or approximately vertically to the second drive shaft 311, and the left end of the second drive shaft 311 is connected to the direction-changing wheel by transmission, and the direction-changing wheel is meshedly connected to the rear end of the second direction-changing shaft to convert the rotation of the direction-changing wheel around the left and right directions into the rotation of the second direction-changing shaft around the front and back directions. The front end of the second direction-changing shaft is connected to the eccentric wheel 321 by transmission, and the eccentric wheel 321 is connected to the second movable knife group 12 through the second connecting rod 322. The eccentric wheel 321 can rotate around the front and back directions (such as the axial direction of the second direction-changing shaft), and the eccentric wheel 321 can drive the second movable knife group 12 to reciprocate cutting motion in the left and right directions through the second connecting rod 322 during the rotation process.

[0106] It should be noted that, in the above solution, after the movable knife driving wheel is connected and installed with the eccentric member 221 , the structure is approximately the same as the eccentric wheel 321 .

[0107] Since the first driving wheel 211 and the second driving wheel 312 are configured to rotate synchronously, by adjusting the first crank assembly 22 and the second crank assembly 32, the first moving knife assembly 11 and the second moving knife assembly 12 can also make synchronous opposite cutting movements in the left and right directions.

[0108] In some embodiments, Figure 2 and Fig.11 As shown, the double-moving blade cutter 100 further includes a reel 62, which is arranged close to the accommodating chamber, such as being arranged at an upper position in front of the cutting platform auger 61. The rotating reel 62 is used to gather the front crops into the accommodating chamber, and then the sheared crops are gathered to the feed inlet by the cutting platform auger 61 and transported backward.

[0109] Exemplarily, the reel 62 is assembled and connected to the cutting table body 50 through a connecting frame. The reel 62 is rotatably mounted on the connecting frame, and the other end of the connecting frame is rotatably connected to the cutting table body 50, so that the connecting frame can rotate relative to the cutting table body 50 around an axis parallel to the left and right direction, thereby adjusting the height position of the reel 62 and the receiving cavity. In the working state, the height of the reel 62 is lowered so that the reel 62 can smoothly collect the crops into the receiving cavity. The height of the reel 62 can also be raised so that there is sufficient space under the reel 62 to facilitate the cleaning and maintenance operations of the receiving cavity.

[0110] It should be noted that when the connecting frame is rotatably connected to the cutting table body 50, it must be hingedly assembled with the cutting table body 50 through structures such as a hinge seat and a hinge shaft. Figure 2 and Fig.12The double-movable blade cutter 100 further includes a reel-pulling transmission mechanism 70 , and the reel-pulling transmission mechanism 70 includes a reel-pulling rotating shaft 71 , a reel-pulling driving wheel 72 and a first reel-pulling transmission wheel 73 .

[0111] The reel rotating shaft 71 can be used as a part of the hinged shaft structure of the connecting frame. The reel driving wheel 72 is rotatably mounted on one end of the reel rotating shaft 71, such as the reel driving wheel 72 is mounted on one end of the reel rotating shaft 71 through a bearing. The reel driving wheel 72 is used to drive the reel wheel 62 to rotate through a gear, sprocket or pulley structure at one end of the reel wheel 62.

[0112] The reel driving wheel 72 is connected to the first reel transmission wheel 73 in a transmission connection, and the first reel transmission wheel 73 is rotationally connected to the reel rotating shaft. For example, the first reel transmission wheel 73 is coaxially arranged with the reel driving wheel 72, and the two are connected by a plurality of axially arranged screws, so that the first reel transmission wheel 73 can drive the reel driving wheel 72 to rotate synchronously, so as to drive the reel wheel 62.

[0113] In some embodiments, Figure 2 and Fig.13 As shown, along the axial direction of the transmission shaft 41, an auger transmission wheel 63 is provided at one end of the cutter auger 61 close to the first driving wheel 211, and the auger transmission wheel 63 is transmission connected to the cutter auger 61, and the auger transmission wheel 63 is transmission connected to the auger driving wheel 214, so that the auger driving wheel 214 can drive the cutter auger 61 to rotate by chain drive, belt drive, synchronous belt drive or gear meshing.

[0114] Continue to refer to Figure 2 and Fig.13 One end of the cutting platform auger 61 is also connected to the second reed-pulling transmission wheel 64, and the second reed-pulling transmission wheel 64 is in transmission connection with the first reed-pulling transmission wheel 73. The auger driving wheel 214 can simultaneously drive the cutting platform auger 61 and the reed-pulling wheel 62 to rotate. The driving structures of the cutting platform auger 61 and the reed-pulling wheel 62 are independent of the driving structure of the double movable blade combination and do not interfere with each other.

[0115] It should be noted that in the embodiment of the present application, a driving bearing may not be required between the first driving wheel 211 and the first driving shaft 212, that is, the first driving wheel 211 may be drivingly connected to the first driving shaft 212. In this case, the first driving wheel 211 may also drive the cutting platform auger 61 and the reel 62 to rotate via the first driving shaft 212 and the auger driving wheel 214, and the structure is simple.

[0116] like Fig.14 and Fig.15As shown, the first moving knife group 11 and the second moving knife group 12 are respectively provided with a plurality of blades, and the first moving knife group 11 and the second moving knife group 12 can be assembled close to each other in the up-down direction. So that the first moving knife group 11 and the second moving knife group 12 are at least partially overlapped in the length direction. In this way, when the first moving knife group 11 and the second moving knife group 12 are separated from each other to the maximum distance in the left-right direction, at least some blades (such as three to five blades) of the first moving knife group 11 and the second moving knife group 12 can be overlapped, thereby avoiding the existence of a blind cutting area between some double moving knife assemblies 10 where the rice plants cannot be cut.

[0117] In some embodiments, continue to refer to Fig.14 and Fig.15 The double movable knife assembly 10 further includes a first edge guard 13 and a second edge guard 14 . The first movable knife assembly 11 is provided with the first edge guard 13 , and the second movable knife assembly 12 is provided with the second edge guard 14 .

[0118] For example, the first blade guard 13 is disposed near the first movable blade assembly 11, and a plurality of first blade guards 13 are disposed at intervals along the length direction of the first movable blade assembly 11. The second blade guard 14 is disposed near the second movable blade assembly 12, and a plurality of second blade guards 14 are disposed at intervals along the length direction of the second movable blade assembly 12.

[0119] Taking the example of the first movable knife group 11 being close to and arranged above the second movable knife group 12, the first blade guard 13 is arranged on the upper side of the first movable knife group 11, and the second blade guard 14 is arranged on the lower side of the second movable knife group 12. When the first movable knife group 11 performs reciprocating cutting motion along the left and right directions, the multiple blades of the first movable knife group 11 reciprocate compared with the multiple first blade guards 13 to clamp and cut the crops between the two. Correspondingly, when the second movable knife group 12 performs reciprocating cutting motion along the left and right directions, the multiple blades of the second movable knife group 12 reciprocate compared with the multiple second blade guards 14 to clamp and cut the crops between the two. That is, the blade guard protects the movable knife group while allowing the movable knife group to reciprocate to complete the cutting action, which has higher reliability.

[0120] In actual application, the harvester transmits power to the first driving wheel 213 and the second driving wheel 313 to make the first driving wheel 213 and the second driving wheel 313 rotate rapidly. The first driving wheel 213 drives the harvesting platform auger 61 and the reed wheel 62 to rotate via the first driving shaft 212, the auger driving wheel 214, the auger transmission wheel 63, the second reed transmission wheel 64, the first reed transmission wheel 46, and the reed driving wheel 72.

[0121] The second driving wheel 313 is connected to the second driving shaft 311, the second driving wheel 312, the second transmission wheel 43, the transmission shaft 41, the first transmission wheel 42, and the first driving wheel 211, so that the first driving wheel 211 and the second driving wheel 312 rotate synchronously. Among them, the first driving wheel 211 and the first transmission wheel 42, and the second driving wheel 312 and the second transmission wheel 43 are driven by sprockets to avoid slipping. On this basis, after adjustment, the first crank assembly 22 and the second crank assembly 32 on both sides of the cutting table body 50 are synchronized to drive the first moving knife group 11 and the second moving knife group 12 on the front side of the cutting table body 50 to synchronize the reverse cutting movement, so that the inertial force and impact load generated by the first moving knife group 11 and the second moving knife group 12 in the reciprocating cutting process can weaken or offset each other, thereby greatly reducing the inertial force and impact load generated by the double moving knife assembly 10 during the reciprocating cutting process.

[0122] It should be noted that if Figure 2 and Figure 3 As shown, at the rear of the harvesting part of the cutting table 50, the first transmission wheel 42 at one end of the transmission shaft 41 is connected to the first drive wheel 211 at the right end of the harvesting part, and the second transmission wheel 43 at the other end of the transmission shaft 41 is connected to the second drive wheel 312 at the left side of the connection part. Fig.16 The second transmission wheel 43 disposed near the upper side of the cutting table 50 is connected to the second driving wheel 312 through a chain so that the two can rotate synchronously, which is beneficial to reducing the setting length of the transmission shaft 41 and improving the flexibility of the arrangement of the transmission shaft 41.

[0123] On the other hand, an embodiment of the present utility model further provides a harvester, comprising the double-moving blade cutter 100 of any one of the above aspects.

[0124] Since the harvester includes the double-moving blade cutter 100 in the above aspect, the harvester has all the beneficial effects of the double-moving blade cutter 100, which will not be described in detail here.

[0125] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A double-moving knife cutter, characterized in that: include: A double movable knife assembly (10), the double movable knife assembly (10) comprising a first movable knife group (11) and a second movable knife group (12); A first driving mechanism (20) comprises a first driving wheel (211) and a first crank assembly (22), wherein the first driving wheel (211) is drivingly connected to the first moving knife assembly (11) via the first crank assembly (22); A second driving mechanism (30) comprises a second driving shaft (311) and a second crank assembly (32), wherein the second driving shaft (311) is drivingly connected to the second moving knife assembly (12) via the second crank assembly (32); and a transmission shaft (41), one end of the transmission shaft (41) being transmission-connected to the first driving wheel (211), and the other end of the transmission shaft (41) being transmission-connected to the second driving shaft (311), so that the first crank assembly (22) and the second crank assembly (32) drive the first movable knife assembly (11) and the second movable knife assembly (12) to perform synchronous reverse cutting movements.

2. The double-moving blade cutter according to claim 1, characterized in that: The first driving mechanism (20) further comprises a first driving shaft (212), wherein the first driving shaft (212) and the second driving shaft (311) are spaced apart from each other along the axial direction of the transmission shaft (41); Along the axial direction of the transmission shaft (41), the first driving wheel (211) is provided at one end of the first driving shaft (212) away from the second driving mechanism (30), and the second driving shaft (311) is transmission-connected to one end of the transmission shaft (41) close to the first driving mechanism (20).

3. The double-moving blade cutter according to claim 2, characterized in that: Along the axial direction of the transmission shaft (41), at least one of an end of the first drive shaft (212) close to the second drive mechanism (30) and an end of the second drive shaft (311) close to the first drive mechanism (20) is configured as a power input end.

4. The double-moving blade cutter according to claim 3, characterized in that: The second driving mechanism (30) comprises: A second driving wheel (313), one end of the second driving shaft (311) close to the first driving mechanism (20) is in transmission connection with the second driving wheel (313), and the second driving wheel (313) is configured as a power input end.

5. The double-moving blade cutter according to any one of claims 2 to 4, characterized in that: The first driving mechanism (20) comprises: A first driving wheel (213), wherein one end of the first driving shaft (212) close to the second driving mechanism (30) is in driving connection with the first driving wheel (213), and the first driving wheel (213) is configured as a power input end; and an augers driving wheel (214), wherein one end of the first driving shaft (212) away from the second driving mechanism (30) is drivingly connected to the augers driving wheel (214) for driving the cutting platform augers (61) to rotate.

6. The double-moving blade cutter according to claim 5, characterized in that: The first driving mechanism (20) further comprises: A driving bearing (215), wherein the first driving wheel (211) is connected to the first driving shaft (212) via the driving bearing (215).

7. The double-moving blade cutter according to claim 5, characterized in that: The first driving wheel (211) is drivingly connected to the first driving shaft (212).

8. The double-moving blade cutter according to any one of claims 1 to 4, characterized in that: The two ends of the transmission shaft (41) are drivingly connected with a first transmission wheel (42) and a second transmission wheel (43); The first transmission wheel (42) is transmission-connected to the first driving wheel (211); The second driving mechanism (30) comprises a second driving wheel (312); along the axial direction of the transmission shaft (41), one end of the second driving shaft (311) close to the first driving mechanism (20) is drivingly connected to the second driving wheel (312); the second transmission wheel (43) is drivingly connected to the second driving wheel (312), so that the first driving wheel (211) and the second driving wheel (312) rotate synchronously.

9. The double-moving blade cutter according to any one of claims 1 to 4, characterized in that: The first crank assembly (22) comprises an eccentric member (221), a first connecting rod (222) and a first rocker member (223); the first driving wheel (211) is connected to the eccentric member (221) at a position away from the axis, and the eccentric member (221) is connected to the first moving knife assembly (11) via the first connecting rod (222) and the first rocker member (223); And / or, the second crank assembly (32) comprises an eccentric wheel (321), a second connecting rod (322) and a second rocker arm (323); along the axial direction of the transmission shaft (41), one end of the second drive shaft (311) away from the first drive mechanism (20) is in transmission connection with the eccentric wheel (321), and the eccentric wheel (321) is connected to the second movable knife group (12) through the second connecting rod (322) and the second rocker arm (323), so that the first movable knife group (11) and the second movable knife group (12) can perform synchronous and opposite cutting movements along the axial direction of the transmission shaft (41).

10. A harvester, characterized in that: The invention comprises the double-moving knife cutter according to any one of claims 1 to 9.

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