Double-moving-cutter cutting device and harvester

Abstract

The utility model belongs to the technical field of harvesters, and provides a double-moving-cutter cutting device and a harvester, and the double-moving-cutter cutting device comprises a double-moving-cutter assembly which comprises a first moving cutter group and a second moving cutter group; the first transmission mechanism comprises a first transmission rod and a first transmission shaft, the first transmission shaft is in transmission connection with the first transmission rod, and the first transmission rod is in transmission connection with the first movable cutter set; the second transmission mechanism comprises a second transmission rod and a second transmission shaft, the second transmission shaft is in transmission connection with the second transmission rod, and the second transmission rod is in transmission connection with the second movable cutter set; the driving mechanism is in transmission connection with the first transmission shaft and the second transmission shaft so that the driving mechanism can drive the first transmission shaft and the second transmission shaft to rotate synchronously. The first transmission shaft and the second transmission shaft are driven by the driving mechanism to act synchronously, so that the double moving cutters can be driven to move simultaneously, the moving cutters move in a balanced manner, resonance with other moving parts of the whole machine can be avoided, impulse can be offset mutually, and vibration is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of harvesters, and in particular relates to a double-movable knife cutting device and a harvester. Background Art

[0002] A harvester is a machine that harvests crops in one go. It can harvest and thresh crops at once, collect the grains in a storage bin, and then transport the grains to a transport vehicle via a conveyor belt. The cutting device on a harvester is mostly reciprocating, using a moving blade to perform a reciprocating shearing motion relative to a fixed blade to cut the crops.

[0003] In the related prior art, the resonance phenomenon can be solved by using the reciprocating motion of the double moving knives. However, if the transmission structure and the driving mechanism for driving the synchronous motion of the double moving knives are not set reasonably, the problem of unbalanced motion of the moving knives will still arise. Utility Model Content

[0004] In view of this, the utility model provides a double movable knife cutting device and a harvester to solve the problem of unbalanced movable knife movement that is easily generated during the reciprocating motion of the double movable knives in the prior art.

[0005] On the one hand, the utility model provides a double-movable knife cutting device, which includes: a double-movable knife assembly, including a first moving knife group and a second moving knife group; a first transmission mechanism, including a first transmission rod and a first transmission shaft, the first transmission shaft is transmission-connected to the first transmission rod, and the first transmission rod is transmission-connected to the first moving knife group; a second transmission mechanism, including a second transmission rod and a second transmission shaft, the second transmission shaft is transmission-connected to the second transmission rod, and the second transmission rod is transmission-connected to the second moving knife group; a driving mechanism, which is transmission-connected to the first transmission shaft and the second transmission shaft respectively, so that the driving mechanism drives the first transmission shaft and the second transmission shaft to rotate synchronously and at the same speed.

[0006] The beneficial effect is that the driving mechanism drives the first transmission shaft and the second transmission shaft to move synchronously, thereby driving the double movable knives to move simultaneously, making the movable knives move balanced, avoiding resonance with other moving parts of the whole machine, offsetting each other's impulses, and reducing vibration.

[0007] As an optional embodiment, a first transmission wheel is provided at one end of the first transmission shaft away from the first transmission rod, and a second transmission wheel is provided at one end of the second transmission shaft away from the second transmission rod, the first transmission wheel and the second transmission wheel are spaced apart from each other and arranged opposite to each other, and the driving mechanism is transmission-connected to the first transmission wheel and the second transmission wheel.

[0008] As an optional embodiment, the driving mechanism includes a driving shaft, a first driving wheel is provided at one end of the driving shaft, a second driving wheel is provided at the other end of the driving shaft, the first driving wheel is connected to the first transmission wheel, and the second driving wheel is connected to the second transmission wheel.

[0009] The beneficial effect is that the two shafts are driven to rotate synchronously by rotating the drive shaft, so that the transmission efficiency of the drive shaft is high and the overall structure is more compact. The transmission method in which the drive shaft drives the first transmission shaft and the second transmission shaft to rotate synchronously is achieved by the cooperation of the drive wheel and the transmission wheel. It has a simple structure and high transmission efficiency.

[0010] As an optional implementation, a projection of the drive shaft in a plane defined by the axis centers of the first transmission shaft and the second transmission shaft is located between the first transmission shaft and the second transmission shaft.

[0011] The beneficial effect is that when the driving shaft synchronously drives the first transmission shaft and the second transmission shaft to rotate, the operation can be more stable, and the occurrence of the first transmission shaft and the second transmission shaft being out of sync can be avoided.

[0012] As an optional embodiment, the driving mechanism includes: a first power wheel, arranged on one side of the cutting platform body, the first power wheel is connected to the first transmission wheel; a second power wheel, arranged on the other side of the cutting platform body, the second power wheel is connected to the second transmission wheel; a conveying upper shaft, arranged through the cutting platform body, and the conveying upper shaft is provided with the first power wheel and the second power wheel.

[0013] The beneficial effect is that the driving mechanism is arranged on the cutting platform body, and the first power wheel and the power wheel of the cutting platform body are used to drive the corresponding first transmission wheel and the second transmission wheel through chain transmission, which saves the components of the separate driving mechanism and reduces the cost.

[0014] As an optional embodiment, the double-moving knife cutting device also includes an agitator driving shaft, the agitator driving shaft is provided with a first agitator wheel, the first transmission shaft or the second transmission shaft is provided with an agitator transmission wheel, and the agitator transmission wheel is transmission-connected to the first agitator wheel.

[0015] The beneficial effect is that the auger driving shaft is driven to rotate synchronously by the auger driving wheel arranged on the first transmission shaft and / or the second transmission shaft, the transmission efficiency is high and space is saved.

[0016] As an optional embodiment, the first transmission shaft and / or the second transmission shaft is provided with an eccentric block that rotates synchronously, and the auger transmission wheel is arranged on the eccentric block.

[0017] The beneficial effect is that the second transmission rod and / or the first transmission rod are driven to move by the eccentric block, the structure is simple and reliable, and the movement is smoother.

[0018] As an optional embodiment, a second auger wheel is provided at the end of the auger driving shaft close to one end of the first transmission rod or the second transmission rod, and the double-moving knife cutting device also includes a straw wheel, and the second auger wheel is suitable for driving the straw wheel to rotate.

[0019] The beneficial effect is that the auger drive wheel arranged on the first transmission shaft and / or the second transmission shaft drives the auger driving shaft to rotate synchronously, and then drives the pulling wheel to rotate, the transmission efficiency is high, and space is further saved.

[0020] As an optional embodiment, the first transmission mechanism also includes a first triangular rocker arm, which is transmission-connected to the first transmission rod and the first moving knife group, and / or the second transmission mechanism also includes a second triangular rocker arm, which is transmission-connected to the second transmission rod and the second moving knife group.

[0021] The beneficial effect is that the triangular rocker arm drives the first movable knife group and the second movable knife group to reciprocate, thereby further reducing the occurrence of vibration.

[0022] On the other hand, the utility model also provides a harvester, comprising any one of the double-moving knife cutting devices described.

[0023] The beneficial effect is that, since the above-mentioned harvester includes the double-moving knife cutting device in any of the above-mentioned items, the above-mentioned harvester has all the beneficial effects of the above-mentioned double-moving knife cutting device, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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.

[0025] Figure 1 This is one of the exploded schematic diagrams of the double-moving knife cutting device of the embodiment of the utility model;

[0026] Figure 2 for Figure 1 A is an enlarged structural diagram;

[0027] Figure 3 for Figure 1 The enlarged structural diagram at B in FIG.

[0028] Figure 4 This is a second schematic diagram of the exploded structure of the double-moving knife cutting device of one embodiment of the utility model;

[0029] Figure 5 This is a third exploded structural diagram of a double-moving knife cutting device according to an embodiment of the utility model;

[0030] Figure 6 This is a schematic diagram of the front structure of a double-moving knife cutting device according to an embodiment of the utility model;

[0031] Figure 7 It is a schematic diagram of the top view of the double-moving knife cutting device according to one embodiment of the utility model;

[0032] Figure 8 This is a transmission principle diagram of a double-moving knife cutting device according to another embodiment of the utility model.

[0033] Description of reference numerals:

[0034] 100. Double-moving knife cutting device;

[0035] 110. Double-moving knife assembly;

[0036] 120. A first transmission mechanism;

[0037] 121. First transmission rod;

[0038] 122. First transmission shaft;

[0039] 123. First transmission wheel;

[0040] 124. First triangular rocker arm;

[0041] 130. Second transmission mechanism;

[0042] 131, second transmission rod;

[0043] 132. Second transmission shaft;

[0044] 133, second transmission wheel;

[0045] 134. Second triangular rocker arm;

[0046] 140. Driving mechanism;

[0047] 141. Drive shaft;

[0048] 142. First driving wheel;

[0049] 143, second driving wheel;

[0050] 144. First power wheel;

[0051] 145. Second power wheel;

[0052] 146, conveying upper shaft;

[0053] 150. Agitator driving shaft;

[0054] 160. First churning wheel;

[0055] 170, auger drive wheel;

[0056] 180, eccentric block;

[0057] 190, second churning wheel;

[0058] 200, reel;

[0059] 300. Cutting table body. DETAILED DESCRIPTION

[0060] 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.

[0061] like Figure 1 and Figure 4 As shown, according to an embodiment of the utility model, a double movable knife cutting device 100 is provided, and the double movable knife cutting device 100 includes: a double movable knife assembly 110, a first transmission mechanism 120, a second transmission mechanism 130 and a driving mechanism 140, the double movable knife assembly 110 includes a first movable knife group and a second movable knife group, the first transmission mechanism 120 includes a first transmission rod 121 and a first transmission shaft 122, the first transmission shaft 122 is transmission-connected to the first transmission rod 121, and the first transmission rod 121 is transmission-connected to the first movable knife group, the second transmission mechanism 130 includes a second transmission rod 131 and a second transmission shaft 132, the second transmission shaft 132 is transmission-connected to the second transmission rod 131, and the second transmission rod 131 is transmission-connected to the second movable knife group, and the driving mechanism 140 is transmission-connected to the first transmission shaft 122 and the second transmission shaft 132 respectively, so that the driving mechanism 140 drives the first transmission shaft 122 and the second transmission shaft 132 to rotate synchronously and at the same speed.

[0062] The first moving knife group and the second moving knife group are arranged at the top and the bottom. The first moving knife group and the second moving knife group are respectively provided with a plurality of blades. The blades of the first moving knife group are fitted against the blades of the second moving knife group.

[0063] The first transmission rod 121 and the second transmission rod 131 are arranged opposite to each other. Similarly, the first transmission shaft 122 and the second transmission shaft 132 are also arranged opposite to each other. The first transmission shaft 122 and the second transmission shaft 132 can be arranged horizontally respectively. The driving mechanism 140 is used to synchronously drive the first transmission shaft 122 and the second transmission shaft 132. The first transmission shaft 122 and the second transmission shaft 132 rotate synchronously, so that the first transmission rod 121 and the second transmission rod 131 move synchronously. The movement of the first transmission rod 121 can drive the first movable knife group to move, and the movement of the second transmission rod 131 can drive the second movable knife group to move.

[0064] The first transmission shaft 122 and the second transmission shaft 132 may be coaxially arranged, and a gap is provided between the first transmission shaft 122 and the second transmission shaft 132 .

[0065] The two moving knives move at the same time, and the single-sided transmission is changed to double-sided transmission, which makes the moving knife move in a balanced manner, avoids resonance with other moving parts of the whole machine, offsets each other's impulses, reduces vibration, does not affect the product's user experience and life, and also saves space and cost.

[0066] Furthermore, the driving mechanism 140 includes a driving shaft 141 , and the driving shaft 141 rotates to drive the first transmission shaft 122 and the second transmission shaft 132 to rotate synchronously.

[0067] The driving mechanism 140 also includes a power mechanism, which can drive the driving shaft 141 to rotate. The driving shaft 141 rotates and is connected to the first transmission shaft 122 and the second transmission shaft 132, so that the driving shaft 141 can drive the first transmission shaft 122 and the second transmission shaft 132 to rotate synchronously.

[0068] It can be understood that when the driving shaft 141 rotates, it drives the two shafts to rotate synchronously, so that the transmission efficiency of the driving shaft 141 is high and the overall structure is more compact.

[0069] Furthermore, a first transmission wheel 123 is provided at one end of the first transmission shaft 122 away from the first transmission rod 121, a second transmission wheel 133 is provided at one end of the second transmission shaft 132 away from the second transmission rod 131, the first transmission wheel 123 and the second transmission wheel 133 are spaced apart from each other and arranged opposite to each other, the first transmission wheel 123 is transmission-connected to the first driving wheel 142, and the second transmission wheel 133 is transmission-connected to the second driving wheel 143. The driving mechanism 140 is transmission-connected to the first transmission wheel 123 and the second transmission wheel 133.

[0070] The driving mechanism 140 includes a driving shaft 141 , a first driving wheel 142 is disposed at one end of the driving shaft 141 , a second driving wheel 143 is disposed at the other end of the driving shaft 141 , the first driving wheel 142 is drivingly connected to the first transmission wheel 123 , and the second driving wheel 143 is drivingly connected to the second transmission wheel 133 .

[0071] The driving shaft 141 drives the first transmission shaft 122 and the second transmission shaft 132 to rotate synchronously, and the transmission mode is belt transmission or chain transmission. Among them, the first driving wheel 142 and the second driving wheel 143 can be sprocket wheels or pulleys, and the first driving wheel 142 and the second driving wheel 143 are respectively arranged at opposite ends of the driving shaft 141.

[0072] Specifically, the projection of the driving shaft 141 within the plane defined by the axis center of the first transmission shaft 122 and the axis center of the second transmission shaft 132 is located between the first transmission shaft 122 and the second transmission shaft 132 .

[0073] It can be understood that when the first transmission shaft 122 and the second transmission shaft 132 can determine a plane, the projection of the drive shaft 141 on the plane is located between the first transmission shaft 122 and the second transmission shaft 132, so that when the drive shaft 141 synchronously drives the first transmission shaft 122 and the second transmission shaft 132 to rotate, it can run more smoothly and avoid the occurrence of the first transmission shaft 122 and the second transmission shaft 132 being out of sync.

[0074] In another embodiment, Figure 4 and Figure 8 As shown, the driving mechanism 140 includes a first power wheel 144, a second power wheel 145 and a conveying upper shaft 146. The first power wheel 144 is arranged on one side of the cutting platform body 300, and the first power wheel 144 is connected to the first transmission wheel 123 by transmission. The second power wheel 145 is arranged on the other side of the cutting platform body 300, and the second power wheel 145 is connected to the second transmission wheel 133 by transmission. The conveying upper shaft 146 runs through the cutting platform body 300, and the conveying upper shaft 146 is provided with the first power wheel 144 and the second power wheel 145.

[0075] The above-mentioned conveying upper shaft 146 is arranged on the cutting platform body 300, the first power wheel 144 is arranged at one end of the conveying upper shaft 146, and the second power wheel 145 is arranged at the other end of the conveying upper shaft 146, so that the first power wheel 144 and the second power wheel 145 can rotate synchronously and at the same speed. The first power wheel 144 and the second power wheel 145 can be connected to the first transmission wheel 123 and the second transmission wheel 133 on the corresponding side through a chain. Compared with the first power wheel 144 and the second power wheel 145 driving the drive shaft 141 to rotate synchronously and at the same speed through a belt drive, the present embodiment does not need to set the drive shaft 141, thereby saving the setting of parts and components and improving economy.

[0076] Among them, Figure 1 and Figure 3As shown, the double-moving knife cutting device 100 also includes an augers driving shaft 150 , the augers driving shaft 150 is provided with a first augers wheel 160 , the first transmission shaft 122 and / or the second transmission shaft 132 is provided with an augers transmission wheel 170 , and the augers transmission wheel 170 is transmission-connected to the first augers wheel 160 .

[0077] In this embodiment, a first auger wheel 160 is provided at one end of the auger driving shaft 150 close to the second transmission rod 131 , and an auger transmission wheel 170 is provided at the second transmission shaft 132 . The auger transmission wheel 170 is transmission-connected to the first auger wheel 160 .

[0078] Alternatively, a first auger wheel 160 is provided at one end of the auger driving shaft 150 close to the first transmission rod 121 , and an auger transmission wheel 170 is provided at the first transmission shaft 122 .

[0079] In this embodiment, a cutter auger is installed on the outer wall of the auger driving shaft 150, the first auger wheel 160 is arranged at one end close to the second transmission rod 131, and the auger transmission wheel 170 is arranged on the second transmission shaft 132, wherein the auger transmission wheel 170 and the first auger wheel 160 can be sprockets respectively, and through chain transmission, when the second transmission shaft 132 rotates, the second transmission shaft 132 drives the auger driving shaft 150 to rotate synchronously through the auger transmission wheel 170, the chain, and the first auger wheel 160. The auger driving shaft 150 is rotatably connected to the transmission bearing seat, so that the auger driving shaft 150 can rotate.

[0080] In another embodiment, the first transmission shaft 122 and / or the second transmission shaft 132 is provided with an eccentric block 180 that rotates synchronously, and the auger transmission wheel 170 is provided on the eccentric block 180 .

[0081] In this embodiment, an eccentric block 180 is provided at a first end of the first transmission shaft 122 close to the first transmission rod 121, and / or an eccentric block 180 is provided at an end of the second transmission shaft 132 close to the second transmission rod 131. The eccentric block 180 provided on the first transmission shaft 122 rotates synchronously with the first transmission shaft 122, and the eccentric block 180 provided on the second transmission shaft 132 rotates synchronously with the second transmission shaft 132.

[0082] By transmitting the belt action through the auger driving shaft 150, the single-side transmission is changed into a double-side transmission, so that the movement of the moving knife is balanced and the resonance phenomenon with other moving parts of the whole machine is avoided.

[0083] In another embodiment, Figure 5 As shown, a second auger wheel 190 is provided at the end of the auger driving shaft 150 close to one end of the first transmission rod 121 or the second transmission rod 131, and the double-moving knife cutting device 100 also includes a reed wheel 200, and the second auger wheel 190 is suitable for driving the reed wheel 200 to rotate.

[0084] In this embodiment, the second agitator wheel 190 is arranged at the end of the agitator driving shaft 150 close to one end of the second transmission rod 131. When the second transmission shaft 132 rotates, the second transmission shaft 132 drives the agitator driving shaft 150 to rotate synchronously through the agitator transmission wheel 170, the chain, and the first agitator wheel 160.

[0085] The second auger wheel 190 drives the first transition sprocket wheel arranged on the transition shaft to rotate through a chain, and the second transition sprocket wheel arranged on the transition shaft can drive the pulling wheel 200 to rotate through a chain, so that the overall structure is compact, the economy of the device is improved, and the cost is saved.

[0086] In another embodiment, if Figure 2 As shown, the first transmission mechanism 120 also includes a first triangular rocker arm 124, which is transmission-connected to the first transmission rod 121 and the first movable knife group, and / or the second transmission mechanism 130 also includes a second triangular rocker arm 134, which is transmission-connected to the second transmission rod 131 and the second movable knife group.

[0087] Understandably, the other end of the first transmission rod 121 is connected to the first triangular rocker arm 124 through a joint bearing, and the first triangular rocker arm 124 is connected to the first moving knife group. The other end of the second transmission rod 131 is connected to the second triangular rocker arm 134 through a joint bearing, and the second triangular rocker arm 134 is connected to the second moving knife group.

[0088] An eccentric connecting rod is used to drive one triangular rocker arm structure and the other triangular rocker arm structure is driven by the auger driving shaft 150, so that the single-sided transmission is changed to a double-sided transmission, so that the movement of the moving knife is balanced, avoiding resonance with other moving parts of the whole machine, affecting the product experience and life, and also saving space and cost.

[0089] In another embodiment, the first moving knife group is provided with a first edge guard, and the second moving knife group is provided with a second edge guard. By providing the first edge guard and the second edge guard at the overlapping position of the first moving knife group and the second moving knife group, the reliability is improved.

[0090] The double-moving blade cutting device 100 further includes a cutting table body 300 .

[0091] The working principle of the double-movable blade cutting device 100 is that the double-movable blade cutting device 100 is divided into two transmission routes of left and right driving when working, and the first transmission rod 121 on the left and the second transmission rod 131 on the right are both through the V driving shaft 141.

[0092] Specifically, the first driving wheel 142 and the second driving wheel 143 at both ends of the driving shaft 141 are respectively driven to the first transmission shaft 122 and the second transmission shaft 132 through chains, the first transmission shaft 122 drives the eccentric member, drives the first transmission rod 121, and then drives the first movable knife group to reciprocate, the second transmission shaft 132 drives the eccentric block 180, drives the second transmission rod 131, and then drives the second movable knife group to reciprocate. The eccentric member is provided with a auger transmission wheel 170, the auger transmission wheel 170 drives the first auger wheel 160, the first auger wheel 160 drives the auger driving shaft 150 to rotate, and the auger works.

[0093] The second auger wheel 190 provided on the auger driving shaft 150 drives the first transition wheel to rotate through the auger driving shaft 150, so that the transition shaft rotates, the second transition wheel provided on the transition shaft rotates, and the second transition wheel drives the reel wheel 200 to rotate through the chain, and the reel wheel works at this time. When the first moving knife group and the second moving knife group reciprocate, they are just in opposite directions, so that the impact load of the moving knife rod when reciprocating can be offset.

[0094] According to the embodiments of the present utility model, Figure 6 and Figure 7 As shown, a harvester is also provided, and the harvester includes any one of the double-moving knife cutting devices 100.

[0095] Since the above-mentioned harvester includes any of the above-mentioned double-movable blade cutting devices 100, the above-mentioned harvester has all the beneficial effects of the above-mentioned double-movable blade cutting device 100, which will not be described in detail here.

[0096] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A double-moving knife cutting device, characterized in that: The double-movable knife cutting device (100) comprises: A double movable knife assembly (110) comprises a first movable knife group and a second movable knife group; A first transmission mechanism (120) comprises a first transmission rod (121) and a first transmission shaft (122), wherein the first transmission shaft (122) is transmission-connected to the first transmission rod (121), and the first transmission rod (121) is transmission-connected to the first movable knife assembly; A second transmission mechanism (130) comprises a second transmission rod (131) and a second transmission shaft (132), wherein the second transmission shaft (132) is transmission-connected to the second transmission rod (131), and the second transmission rod (131) is transmission-connected to the second movable knife assembly; The driving mechanism (140) is respectively connected to the first transmission shaft (122) and the second transmission shaft (132) in a transmission manner, so that the driving mechanism (140) drives the first transmission shaft (122) and the second transmission shaft (132) to rotate synchronously and at the same speed.

2. The double-moving knife cutting device according to claim 1, characterized in that: A first transmission wheel (123) is provided at one end of the first transmission shaft (122) away from the first transmission rod (121), and a second transmission wheel (133) is provided at one end of the second transmission shaft (132) away from the second transmission rod (131). The first transmission wheel (123) and the second transmission wheel (133) are spaced apart from each other and arranged opposite to each other, and the driving mechanism (140) is transmission-connected to the first transmission wheel (123) and the second transmission wheel (133).

3. The double-moving knife cutting device according to claim 2, characterized in that: The driving mechanism (140) comprises a driving shaft (141), one end of the driving shaft (141) is provided with a first driving wheel (142), the other end of the driving shaft (141) is provided with a second driving wheel (143), the first driving wheel (142) is drivingly connected to the first transmission wheel (123), and the second driving wheel (143) is drivingly connected to the second transmission wheel (133).

4. The double-moving knife cutting device according to claim 3, characterized in that: The projection of the drive shaft (141) in a plane defined by the axis center of the first transmission shaft (122) and the axis center of the second transmission shaft (132) is located between the first transmission shaft (122) and the second transmission shaft (132).

5. The double-moving knife cutting device according to claim 2, characterized in that: The driving mechanism (140) comprises: A first power wheel (144) is disposed on one side of the cutting platform body (300), and the first power wheel (144) is drivingly connected to the first transmission wheel (123); A second power wheel (145) is arranged on the other side of the cutting platform body (300), and the second power wheel (145) is connected to the second transmission wheel (133) in a transmission manner; The upper conveying shaft (146) is arranged to penetrate the cutting platform body (300), and the upper conveying shaft (146) is provided with the first power wheel (144) and the second power wheel (145).

6. The double-moving knife cutting device according to any one of claims 1 to 5, characterized in that: The double-moving blade cutting device (100) further comprises an agitator driving shaft (150), wherein the agitator driving shaft (150) is provided with a first agitator wheel (160), and the first transmission shaft (122) or the second transmission shaft (132) is provided with an agitator transmission wheel (170), and the agitator transmission wheel (170) is in transmission connection with the first agitator wheel (160).

7. The double-moving knife cutting device according to claim 6, characterized in that: The first transmission shaft (122) and / or the second transmission shaft (132) are provided with an eccentric block (180) that rotates synchronously, and the auger transmission wheel (170) is arranged on the eccentric block (180).

8. The double-moving knife cutting device according to claim 6, characterized in that: A second auger wheel (190) is provided at an end of the auger driving shaft (150) close to one end of the first transmission rod (121) or the second transmission rod (131), and the double-moving knife cutting device (100) further comprises a reed wheel (200), and the second auger wheel (190) is suitable for driving the reed wheel (200) to rotate.

9. The double-moving knife cutting device according to any one of claims 1 to 5, characterized in that: The first transmission mechanism (120) further includes a first triangular rocker arm (124), which is in transmission connection with the first transmission rod (121) and the first movable knife group, and / or the second transmission mechanism (130) further includes a second triangular rocker arm (134), which is in transmission connection with the second transmission rod (131) and the second movable knife group.

10. A harvester, characterized in that: include: The double-moving knife cutting device (100) according to any one of claims 1 to 9; The cutting platform body (300) is drivingly connected to the double-movable blade cutting device (100).

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