Harvester swath cutting device

Abstract

The present application relates to a kind of variable straw width device and harvester cutting straw device, belong to the field of harvester.It includes: two oppositely arranged straw raking mechanism, the straw raking mechanism includes: straw raking component and connecting plate, one end of the straw raking component is rotatably connected with the connecting plate, the connecting plate is equipped with multiple locking holes, the protrusion fixed on the straw raking component is engaged with one of the locking holes.The present application is favorable to adjust the distance between the other end of two straw raking components by rotating one end of straw raking component, thereby adjusting the width of straw discharge during straw arranging operation, avoiding artificial secondary arrangement of straw width in field, reducing manual labor intensity, and improving work efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of harvesting machines, in particular to a harvesting machine row grass cutting device. BACKGROUND

[0002] In the process of agricultural mechanized production, a large amount of straw is generated after the crops are threshed and separated. The existing grain combine harvester is equipped with a chopper. During operation, the straw is directly discharged from the straw discharge port and then cut and scattered by the chopper, meeting the demand of straw returning to the field. However, when there is a demand for the length of the discharged straw, such as the need to retain a certain length of wheat straw for baling, the straw is directly discharged from the harvesting machine without being cut by the chopper.

[0003] When the existing chopper is used for straw discharge operation, that is, the straw does not need to be cut by the chopper, the straw is directly discharged into the field for subsequent baling operation by the straw baling machine. However, since the straw discharge port of the existing harvesting machine usually does not match the baling width required by the baling machine, the width of the straw discharged into the field during the straw discharge operation does not meet the width requirement of the straw baling machine, and manual secondary arrangement of the straw width in the field is required, increasing the labor intensity and reducing the operation efficiency. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a harvesting machine row grass cutting device to solve the above problems.

[0005] The technical solution for solving the above technical problem is as follows: a variable straw discharge width device, comprising: two oppositely arranged straw raking mechanisms, each straw raking mechanism comprising: a straw raking assembly and a connecting plate, one end of the straw raking assembly being rotatably connected to the connecting plate, the connecting plate being provided with a plurality of locking holes, and a protrusion fixedly arranged on the straw raking assembly being engaged with one of the locking holes.

[0006] The beneficial effects of the present application are: one end of the straw raking assembly is rotatably connected to the connecting plate, which is conducive to adjusting the distance between the other ends of the two straw raking assemblies by rotating one end of the straw raking assembly, thereby adjusting the width of the straw discharged during the straw discharge operation. The protrusion fixedly arranged on the straw raking assembly is engaged with one of the locking holes on the connecting plate, which is conducive to fixing the straw raking assembly with the adjusted discharge width on the connecting plate, so that the subsequently discharged straw is continuously discharged at the adjusted width, avoiding the secondary arrangement of the straw width in the field by manual labor, reducing the labor intensity and improving the operation efficiency.

[0007] On the basis of the above technical solution, the present application can also be improved as follows.

[0008] Further, one side of the connecting plate is vertically fixedly provided with a spacing adjustment plate, a plurality of locking holes are arranged on the spacing adjustment plate in the rotation direction of the end of the straw raking assembly, and one end of the straw raking assembly is rotatably connected to the spacing adjustment plate.

[0009] The beneficial effect of the further scheme is that the spacing adjustment plate is beneficial to provide installation positions for the plurality of locking holes, and facilitates the clamping of the raking assembly with different locking holes, thereby fixing the straw width.

[0010] Further, the raking assembly comprises a raking plate, a connecting rod, a screw rod, a first spring and a nut, one end of the connecting rod and one end of the screw rod are correspondingly fixed on both sides of the raking plate, the connecting rod is rotatably arranged through the other side of the connecting plate, the screw rod is rotatably arranged through the spacing adjustment plate, the nut is threadedly arranged on the other end of the screw rod, the first spring is arranged on the screw rod, and both ends of the first spring are correspondingly connected with the spacing adjustment plate and the nut, and the protruding block is fixed on one side of the end of the raking plate.

[0011] The beneficial effect of the further scheme is that the connecting rod is rotatably arranged through the other side of the connecting plate, and the screw rod is rotatably arranged through the spacing adjustment plate, which is beneficial to the axial displacement of the raking plate along the connecting rod and the screw rod during the adjustment of the straw width, and the protruding block on one side of the end of the raking plate is taken out of the original locking hole, so that the position limiting of the raking plate is cancelled, and the raking plate is rotated around the connecting rod and the screw rod to the required straw width, and the first spring is beneficial to the compression during the cancellation of the position limiting of the raking plate, and accumulates the thrust for the subsequent clamping of the protruding block with the locking hole.

[0012] A cutting and discharging device of a harvester, comprising the above-mentioned variable straw width device, further comprising a cutter, a distributor, an angle adjusting mechanism, a sliding plate rotating mechanism and a straw blocking cover plate, the cutter is fixed on a tail cover of the harvester, two raking mechanisms are fixed on the distributor at intervals, the distributor is hingedly connected with the cutter, one end of the angle adjusting mechanism is hingedly connected with a side wall of the cutter, and the other end of the angle adjusting mechanism is hingedly connected with the distributor, the straw blocking cover plate is fixed in the tail cover of the harvester and arranged above the cutter, and the sliding plate rotating mechanism is rotatably arranged in the tail cover of the harvester, a top end of the sliding plate rotating mechanism abuts against or separates from the straw blocking cover plate, and a bottom end of the sliding plate rotating mechanism is arranged above the cutter or above the distributor.

[0013] The beneficial effect of the present application is that the angle adjusting mechanism is beneficial to adjusting the rotation angle of the distributor relative to the cutter, thereby adapting to the cutting operation or the straw discharging operation, the sliding plate rotating mechanism is rotatably arranged in the tail cover of the harvester, when the top end of the sliding plate rotating mechanism abuts against the straw blocking cover plate, it is beneficial to the straw entering above the distributor along the sliding plate rotating mechanism, and the straw is directly discharged without cutting, thereby realizing the straw discharging operation, and when the top end of the sliding plate rotating mechanism separates from the straw blocking cover plate, it is beneficial to forming a channel into the cutter together with the straw blocking cover plate, thereby cutting the straw discharged from the key type straw separator of the harvester which has been threshed, and throwing and spreading the straw into the field along the distributor, thereby realizing the cutting operation.

[0014] Further, the spreader comprises a rubbing plate, a spreader shell, two rotating plates, a support shaft and two rotating pins, the outlet end of the shredder is arranged in the spreader shell, the two rotating plates are fixedly connected with the two sides of the spreader shell one by one, the support shaft passes through the rotating plate and the shredder, so that the rotating plate rotates relative to the shredder around the support shaft, the rubbing plate is a flat plate with one end fixedly arranged on the rubbing mechanism, the rubbing plate is arranged between the spreader shell and the rubbing mechanism, the spreader shell abuts against the rubbing plate, the connecting plate is arranged between the rotating plate and the side wall of the shredder, the rotating pin passes through the rotating plate and the connecting plate and is fixed on the side wall of the shredder, so that the rotating plate and the connecting plate rotate around the rotating pin, and the other end of the angle adjusting mechanism is hinged to the spreader shell.

[0015] The beneficial effect of the above further scheme is that the angle adjusting mechanism is conducive to driving the spreader shell to rotate relative to the shredder around the support shaft, the spreader shell abuts against the rubbing plate, which is conducive to driving the rubbing plate and the rubbing mechanism fixedly connected with the rubbing plate to rotate around the rotating pin during the rotation of the spreader shell, so as to realize the synchronous rotation of the rubbing mechanism and the spreader relative to the shredder.

[0016] Further, the sliding plate rotating mechanism comprises a rotating handle, a rotating shaft, a straw sliding plate, a locking assembly, a driving mechanism, an angle positioning plate and a detection assembly, the angle positioning plate is fixedly arranged on the harvester tail cover, the rotating shaft is rotatably installed on the harvester tail cover, and the two ends of the rotating shaft are fixedly connected with one end of the rotating handle and one end of the straw sliding plate one by one, one end of the driving mechanism is rotatably sleeved on the rotating shaft, the locking assembly passes through the rotating handle and the driving mechanism, and the end of the locking assembly is inserted into one of the positioning holes of the angle positioning plate, the detection assembly is connected with the driving mechanism and the harvester tail cover, the top end of the straw sliding plate abuts against or separates from the straw blocking plate, and the bottom end of the straw sliding plate is arranged above the shredder or above the spreader.

[0017] The beneficial effect of the above further scheme is that the rotating handle is conducive to manually rotating the rotating shaft, the driving mechanism is conducive to automatically rotating the rotating shaft, so as to realize the rotation of the straw sliding plate, the locking assembly is conducive to being inserted into the positioning hole on the angle positioning plate after the straw sliding plate is rotated to the right position, so as to fix the straw sliding plate, and the detection assembly is conducive to detecting whether the straw sliding plate is rotated to the specified position, thereby providing convenience for the operator to judge the mode switching in the cab.

[0018] Further, the locking assembly comprises a latch, a second spring, a gasket and a split pin, the latch is an L-shaped rod structure, the latch sequentially passes through the rotating handle, the gasket and the driving mechanism, the end of the latch is inserted into the positioning hole, the split pin passes through the side wall of the latch and is arranged between the gasket and the driving mechanism, and the second spring is sleeved on the latch and is fixedly connected with the side wall of the rotating handle and the side wall of the gasket at both ends.

[0019] The beneficial effect of the above further scheme is that the latch is an L-shaped rod structure, which facilitates manual operation of plugging and unplugging the latch, the split pin is beneficial to driving the gasket to displace along the latch in the process of unplugging the latch, so as to compress the second spring, and the end of the latch is inserted into the positioning hole, which is beneficial to canceling the limiting of the rotating handle, the straw sliding plate and the driving mechanism when the latch is unplugged from the positioning hole, and facilitates the rotating handle and / or the driving mechanism to drive the straw sliding plate to rotate.

[0020] Further, the driving mechanism comprises a driving piece and a driving plate, one end of the driving piece is hingedly connected with the harvester tail cover, the other end of the driving piece is hingedly connected with one end of the driving plate, the other end of the driving plate is rotatably sleeved on the rotating shaft, and the locking assembly passes through the driving plate.

[0021] The beneficial effect of the above further scheme is that the driving piece is beneficial to driving the driving plate to rotate around the rotating shaft after the latch is unplugged from the angle positioning plate, so as to synchronously drive the rotating handle and the straw sliding plate to rotate with the latch still passing through the driving plate.

[0022] Further, the detection assembly comprises a magnetic steel and a proximity switch sensor, the proximity switch sensor is fixedly arranged on the harvester tail cover, and the magnetic steel is fixedly arranged on the side wall of the driving plate.

[0023] The beneficial effect of the above further scheme is that the magnetic steel is beneficial to rotating with the driving plate, and cooperates with the proximity switch sensor fixedly arranged on the harvester tail cover, so as to make the signal of the proximity switch sensor be connected when the magnetic steel approaches the proximity switch sensor, thereby facilitating the operator of the cab to judge whether the straw sliding plate is rotated to the position.

[0024] Further, the grass blocking cover plate comprises a cover plate frame and a cover plate, the cover plate frame is fixedly arranged on the harvester tail cover, the cover plate is detachably arranged at the bottom end of the cover plate frame, a handle for detaching the cover plate from the cover plate frame is fixedly arranged on the side wall of the cover plate, the bottom end of the cover plate is arranged above the feeding port of the chopper, and the top end of the sliding plate rotating mechanism abuts against or separates from the cover plate frame.

[0025] The beneficial effects of adopting the above-mentioned further solution are: the sealing plate helps to form a channel for straw to enter the shredder for shredding operations in conjunction with the harvester tail cover and straw slide plate, and at the same time helps to prevent straw from flying out during shredding operations. The handle allows for quick maintenance by removing the sealing plate when there is too much straw clogging the shredder or when the blades in the shredder are worn. Attached Figure Description

[0026] Figure 1 This is an isometric view of the overall structure at the tail cover of the harvester provided in an embodiment of the present invention;

[0027] Figure 2 This is a side view of the overall structure provided in an embodiment of the present invention during weed removal operations;

[0028] Figure 3 This is a side view of the overall structure provided in an embodiment of the present invention during the chopping operation;

[0029] Figure 4 A schematic diagram illustrating the connection between the hay-raking mechanism, shredder, spreader, and angle adjustment mechanism provided in an embodiment of the present invention. Figure 1 ;

[0030] Figure 5 A schematic diagram illustrating the connection between the hay-raking mechanism, shredder, spreader, and angle adjustment mechanism provided in an embodiment of the present invention. Figure 2 ;

[0031] Figure 6 An isometric view of the overall structure provided in an embodiment of the present invention;

[0032] Figure 7 This is a top view of the hay-raking mechanism on the spreader provided in an embodiment of the present invention;

[0033] Figure 8 for Figure 7 Enlarged view of region A in the middle;

[0034] Figure 9 This is a side view of the hay-raking mechanism on the spreader provided in an embodiment of the present invention;

[0035] Figure 10 This is a partial schematic diagram of the skateboard rotation mechanism provided in an embodiment of the present invention;

[0036] Figure 11 for Figure 10 Enlarged view of region B in the middle;

[0037] Figure 12 This is a side view of the skateboard rotating mechanism provided in an embodiment of the present invention.

[0038] The attached diagram lists the components represented by each number as follows:

[0039] 1, raking mechanism; 2, chopper; 3, spreader; 4, angle adjusting mechanism; 5, slide plate rotating mechanism; 6, blocking plate; 11, raking assembly; 12, spacing adjusting plate; 13, connecting plate; 31, straw slide plate; 32, spreader housing; 33, rotating plate; 34, support shaft; 35, rotating pin; 51, rotating handle; 52, rotating shaft; 53, straw slide plate; 54, locking assembly; 55, driving mechanism; 56, angle positioning plate; 57, detection assembly; 61, blocking plate frame; 62, blocking plate; 111, raking plate; 112, connecting rod; 113, screw rod; 114, first spring; 115, nut; 121, locking hole; 531, front slide plate; 532, rear slide plate; 541, bolt; 542, second spring; 543, gasket; 544, split pin; 551, driving piece; 552, driving plate; 571, magnetic steel; 572, proximity switch sensor. DETAILED DESCRIPTION

[0040] The principles and features of the present application are described below, and the examples are only used to explain the present application, and are not used to limit the scope of the present application.

[0041] As shown in Figures 1 to 9 The first embodiment provides a variable straw width device, comprising: two oppositely arranged raking mechanisms 1, the raking mechanism 1 comprising: a raking assembly 11 and a connecting plate 13, one end of the raking assembly 11 is rotatably connected with the connecting plate 13, the connecting plate 13 is provided with a plurality of locking holes 121, and the protrusion fixed on the raking assembly 11 is clamped with one of the locking holes 121.

[0042] It should be noted that in the first embodiment, the end of the raking assembly 11 rotatably connected with the connecting plate 13 is close to the end of the raking assembly 11 fixed with the protrusion;

[0043] The locking hole 121 is a through hole or a blind hole.

[0044] The beneficial effects of the present application are: one end of the raking assembly is rotatably connected with the connecting plate, which is conducive to adjusting the distance between the other ends of the two raking assemblies by rotating one end of the raking assembly, thereby adjusting the width of the straw discharged during the straw discharge operation, the protrusion fixed on the raking assembly is clamped with one of the locking holes on the connecting plate, which is conducive to fixing the raking assembly with the adjusted discharge width on the connecting plate, so that the subsequently discharged straw is continuously discharged at the adjusted width, avoiding manual reorganization of the straw width in the field, reducing the labor intensity and improving the operation efficiency.

[0045] Preferably, as shown in Figures 7 to 9As shown, one side of the connecting plate 13 is vertically provided with a spacing adjusting plate 12, a plurality of locking holes 121 are arranged on the spacing adjusting plate 12 along the rotating direction of the end of the raking assembly 11, and one end of the raking assembly 11 is rotationally connected with the spacing adjusting plate 12.

[0046] The above preferred scheme has the beneficial effect that the spacing adjusting plate is beneficial to provide installation positions for a plurality of locking holes, and facilitates the raking assembly to be connected with different locking holes, thereby fixing the raking width.

[0047] Preferably, as shown in the first embodiment, Figure 9 As shown, the raking assembly 11 comprises a raking plate 111, a connecting rod 112, a screw rod 113, a first spring 114 and a nut 115, one end of the connecting rod 112 and one end of the screw rod 113 are respectively fixed on both sides of the raking plate 111, the connecting rod 112 is rotatably arranged through the other side of the connecting plate 13, the screw rod 113 is rotatably arranged through the spacing adjusting plate 12, the nut 115 is threadedly arranged on the other end of the screw rod 113, the first spring 114 is arranged on the screw rod 113, and both ends of the first spring 114 are respectively connected with the spacing adjusting plate 12 and the nut 115, and the protruding block is fixed on one side of the end of the raking plate 111.

[0048] It should be noted that in the first embodiment, the other side of the connecting plate 13 is vertically provided with a plate body, the plate body is arranged opposite to the spacing adjusting plate 12, and the connecting rod 112 is rotatably arranged through the plate body;

[0049] In the first embodiment, the raking plate 111 is a fork-shaped plate structure, which is beneficial to prevent the accumulation of straw from being blocked.

[0050] The above preferred scheme has the beneficial effect that the connecting rod is rotatably arranged through the other side of the connecting plate, and the screw rod is rotatably arranged through the spacing adjusting plate, which is beneficial to first displace the raking plate along the axial direction of the connecting rod and the screw rod during the adjustment of the raking width, remove the protruding block on one side of the end of the raking plate from the original locking hole, thereby canceling the limiting of the raking plate, facilitating the raking plate to rotate around the connecting rod and the screw rod to the required raking width, and the first spring is beneficial to compress during the cancellation of the limiting of the raking plate, thereby accumulating the pushing force for the subsequent connection of the protruding block with the locking hole.

[0051] As shown in the first embodiment, Figures 1 to 6As shown, the second embodiment provides a harvester row grass cutting device, which comprises the above-mentioned variable row grass width device, and further comprises a cutter 2, a spreader 3, an angle adjusting mechanism 4, a slide plate rotating mechanism 5 and a grass blocking cover plate 6. The cutter 2 is fixedly arranged on the tail cover of the harvester. The two row grass mechanisms 1 are fixedly arranged on the spreader 3 at intervals. The spreader 3 is hingedly connected to the cutter 2. One end of the angle adjusting mechanism 4 is hingedly connected to the side wall of the cutter 2, and the other end thereof is hingedly connected to the spreader 3. The grass blocking cover plate 6 is fixedly arranged in the tail cover of the harvester and is arranged above the cutter 2. The slide plate rotating mechanism 5 is rotatably arranged in the tail cover of the harvester. The top end thereof is in abutment with or separated from the grass blocking cover plate 6. The bottom end thereof is arranged above the cutter 2 or above the spreader 3.

[0052] It should be noted that, in the second embodiment, the shell of the cutter 2 is hoisted on the lower inclined reinforcing beam of the tail cover of the harvester by high-strength bolts on both sides. A plurality of moving knives and fixed knives are arranged in the shell of the cutter 2 to cut the straw. The moving knives are uniformly arranged in the axial direction and are rotated at high speed by the moving knife shaft driven by a belt. The fixed knives are fixed to the rear bottom plate of the shell. The shell of the cutter 2 is further provided with a feed inlet for inputting the straw to be cut and an outlet for discharging the cut straw. One end of the angle adjusting mechanism 4 is hingedly connected to the side wall of the shell of the cutter 2.

[0053] In the second embodiment, the angle adjusting mechanism 4 has two, which are arranged on both sides of the shell of the cutter 2. The angle adjusting mechanism 4 is an electric, hydraulic or pneumatic push rod, or a gas spring. When the output shaft of the other end of the angle adjusting mechanism 4 is pushed out, the cutting operation is performed. The slide plate rotating mechanism 5 needs to be rotated to separate the top end thereof from the grass blocking cover plate 6, as shown in Figure 3 and Figure 5 When the output shaft of the other end of the angle adjusting mechanism 4 is retracted, the grass cutting operation is performed. The slide plate rotating mechanism 5 needs to be rotated to abut the top end thereof with the grass blocking cover plate 6, as shown in Figure 2 and Figure 4 .

[0054] The connecting plates 13 of the two row grass mechanisms 1 are fixedly arranged on the spreader 3 at intervals.

[0055] The present application has the beneficial effects that the angle adjusting mechanism is beneficial to adjust the rotation angle of the spreader relative to the chopper, so as to adapt to the chopping operation or the straw discharging operation, the slide plate rotation mechanism is rotationally installed in the tail cover of the harvester, and when the top end of the slide plate rotation mechanism abuts against the straw blocking cover plate, the straw is beneficial to enter above the spreader along the slide plate rotation mechanism and is directly discharged without chopping, so that the straw discharging operation is realized, and when the top end of the slide plate rotation mechanism is separated from the straw blocking cover plate, the slide plate rotation mechanism is beneficial to form a channel into the chopper together with the straw blocking cover plate, so that the straw discharged from the key type straw separator of the harvester is chopped and is thrown and returned to the field along the spreader, and the chopping operation is realized.

[0056] Preferably, as shown in Figure 4 and Figure 5 The spreader 3 comprises a straw slide plate 31, a spreader shell 32, two rotation plates 33, a support shaft 34 and two rotation pins 35, the outlet end of the chopper 2 is arranged in the spreader shell 32, the two rotation plates 33 are fixedly connected to the two sides of the spreader shell 32 in one-to-one correspondence, the support shaft 34 penetrates the rotation plates 33 and the chopper 2, so that the rotation plates 33 rotate relative to the chopper 2 around the support shaft 34, the straw slide plate 31 is a flat plate with one end fixedly arranged on the straw raking mechanism 1, the straw slide plate 31 is arranged between the spreader shell 32 and the straw raking mechanism 1, the spreader shell 32 abuts against the straw slide plate 31, a connecting plate 13 is arranged between the rotation plates 33 and the side wall of the chopper 2, the rotation pins 35 penetrate the rotation plates 33 and the connecting plate 13 and are fixed on the side wall of the chopper 2, so that the rotation plates 33 and the connecting plate 13 rotate around the rotation pins 35, and the other end of the angle adjusting mechanism 4 is hingedly connected to the spreader shell 32.

[0057] It should be noted that in the second embodiment, a plurality of guide plates for uniformly throwing the chopped straw outward are arranged in the spreader shell 32 in intervals;

[0058] The support shaft 34 penetrates the shell of the chopper 2, the connecting plate 13 is arranged between the rotation plates 33 and the shell of the chopper 2, and the rotation pins 35 are fixed on the shell of the chopper 2;

[0059] The straw slide plate 31 is arranged between the spreader shell 32 and the straw raking assembly 11.

[0060] The angle adjusting mechanism is beneficial to driving the spreader shell to rotate relative to the shredder around the support shaft, and the spreader shell abuts against the straw slide plate, which is beneficial to driving the straw slide plate and the straw raking mechanism fixedly connected with the straw slide plate to rotate around the rotating pin in the process of rotating the spreader shell, so that the straw raking mechanism and the spreader are synchronously rotated relative to the shredder.

[0061] Preferably, as shown in Figures 10 to 12 The straw slide plate rotating mechanism 5 includes a rotating handle 51, a rotating shaft 52, a straw slide plate 53, a locking assembly 54, a driving mechanism 55, an angle positioning plate 56 and a detection assembly 57. The angle positioning plate 56 is fixedly arranged on the harvester tail cover. The rotating shaft 52 is rotatably arranged on the harvester tail cover, and one end of the rotating shaft 52 is fixedly connected with one end of the rotating handle 51 and one end of the straw slide plate 53. One end of the driving mechanism 55 is rotatably sleeved on the rotating shaft 52. The locking assembly 54 penetrates through the rotating handle 51 and the driving mechanism 55, and the end of the locking assembly 54 is inserted into one of the positioning holes of the angle positioning plate 56. The detection assembly 57 is connected with the driving mechanism 55 and the harvester tail cover. The top end of the straw slide plate 53 abuts against or separates from the straw blocking plate 6, and the bottom end of the straw slide plate 53 is arranged above the shredder 2 or above the spreader 3.

[0062] It should be noted that in the second embodiment, the rotating shaft 52 rotatably penetrates through the sidewall of the harvester tail cover, so that the rotating handle 51 and the straw slide plate 53 can rotate in the harvester tail cover around the rotating shaft 52;

[0063] A plurality of positioning holes are arranged on the sidewall of the angle positioning plate 56 along the rotating direction of the end of the locking assembly 54;

[0064] As shown in Figure 12 The straw slide plate 53 includes a front slide plate 531 and a rear slide plate 532. One end of the rear slide plate 532 is welded with the sidewall of the front slide plate 531, so that the front slide plate 531 and the rear slide plate 532 form a certain angle. During the straw sorting operation, the straw falls from the end of the straw separator of the harvester, is supported by the front slide plate 531 and continues to slide to the outside of the machine body through the straw slide plate 31. During the shredding operation, the rear slide plate 532 forms a channel with the harvester tail cover and the straw blocking plate 6, so that the straw falls into the shredder 2 to be shredded. Therefore, the bottom end of the front slide plate 531 is arranged above the straw slide plate 31 of the spreader 3, and the bottom end of the rear slide plate 532 is arranged above the feed inlet of the shredder 2.

[0065] The beneficial effects of the above preferred embodiments are that the rotating handle is conducive to manually rotating the rotating shaft, the driving mechanism is conducive to automatically rotating the rotating shaft, thereby realizing the rotation of the straw sliding plate, the locking assembly is conducive to being inserted with the positioning hole on the angle positioning plate after the straw sliding plate is rotated in place, thereby fixing the straw sliding plate, and the detection assembly is conducive to detecting whether the straw sliding plate is rotated to the specified position, thereby providing convenience for the operator to judge the mode switching in the cab.

[0066] Preferably, as shown in Figure 11 The locking assembly 54 includes a plug 541, a second spring 542, a gasket 543, and a split pin 544. The plug 541 is an L-shaped rod structure. The plug 541 sequentially passes through the rotating handle 51, the gasket 543, and the driving mechanism 55. The end of the plug 541 is inserted with the positioning hole. The split pin 544 passes through the side wall of the plug 541 and is arranged between the gasket 543 and the driving mechanism 55. The second spring 542 is sleeved on the plug 541, and both ends thereof are in one-to-one correspondence with the side wall of the rotating handle 51 and the side wall of the gasket 543.

[0067] It should be noted that in the second embodiment, the length of the split pin 544 is greater than the diameter of the plug 541, so that when the plug 541 is pulled out, the split pin 544 can drive the gasket 543 to compress the second spring 542. The split pin 544 is arranged between the gasket 543 and the driving plate 552.

[0068] The beneficial effects of the above preferred embodiments are that the plug is an L-shaped rod structure, which facilitates manual operation of plugging and unplugging the plug, the split pin is conducive to driving the gasket to displace along the plug during the process of unplugging the plug, thereby compressing the second spring, and the end of the plug is inserted with the positioning hole, which is conducive to canceling the limiting of the rotating handle, the straw sliding plate, and the driving mechanism when the plug is pulled out of the positioning hole, thereby facilitating the rotating handle and / or the driving mechanism to drive the straw sliding plate to rotate.

[0069] Preferably, as shown in Figure 11 The driving mechanism 55 includes a driving piece 551 and a driving plate 552. One end of the driving piece 551 is hinged with the harvester tail cover, and the other end thereof is hinged with one end of the driving plate 552. The other end of the driving plate 552 is rotatably sleeved on the rotating shaft 52. The locking assembly 54 passes through the driving plate 552.

[0070] It should be noted that in the second embodiment, the plug 541 passes through the driving plate 552. The driving piece 551 is a gas spring.

[0071] The driving piece is beneficial to driving the driving plate to rotate around the rotating shaft after the angle positioning plate of the bolt is pulled out, so that the rotating handle and the straw sliding plate are driven to rotate synchronously by the bolt still penetrating through the driving plate.

[0072] Preferably, as shown in Figure 11 The detection assembly 57 comprises a magnetic steel 571 and a proximity switch sensor 572, the proximity switch sensor 572 is fixed on the harvester tail cover, and the magnetic steel 571 is fixed on the side wall of the driving plate 552.

[0073] The magnetic steel is beneficial to rotating with the driving plate, cooperating with the proximity switch sensor fixed on the harvester tail cover, and being beneficial to turning on the signal of the proximity switch sensor when the magnetic steel approaches the proximity switch sensor, so that the operator of the cab can conveniently judge whether the straw sliding plate is rotated to the position.

[0074] Preferably, as shown in Figure 11 The grass blocking cover 6 comprises a cover frame 61 and a cover 62, the cover frame 61 is fixed on the harvester tail cover, the cover 62 is detachably mounted at the bottom end of the cover frame 61, a handle for detaching the cover 62 from the cover frame 61 is fixed on the side wall of the cover 62, the bottom end of the cover 62 is arranged above the feeding port of the chopper 2, and the top end of the sliding plate rotating mechanism 5 abuts against or separates from the cover frame 61.

[0075] It should be noted that in the second embodiment, the top end of the front sliding plate 531 abuts against or separates from the cover frame 61.

[0076] The cover is beneficial to forming a channel for the straw to enter the chopper for chopping operation in cooperation with the harvester tail cover and the straw sliding plate, and is also beneficial to blocking the straw from flying out during the chopping operation, and the handle is beneficial to detaching the cover for rapid maintenance when the chopper is blocked by too much straw or the cutter in the chopper is worn.

[0077] The working process of the present application is described as follows:

[0078] As Figures 1 to 12When the harvester needs to be arranged, the pin 541 is first pulled out of one of the positioning holes of the angle positioning plate 56, and still ensures that it passes through the driving plate 552, at this time the second spring 542 is compressed; then manually rotate the rotating handle 51, and start the driving member 551 to make its output shaft push out, make the driving plate 552 rotate around the rotating shaft 52, in the process of rotating the driving plate 552, the driving plate 552 will assist the rotating handle 51 to rotate through the pin 541, and the rotating handle 51 will drive the straw sliding plate 53 to rotate synchronously through the rotating shaft 52, until the top end of the front sliding plate 531 abuts against the sealing plate frame 61, at this time the bottom end of the front sliding plate 531 is arranged above the straw sliding plate 31, and the proximity switch sensor 572 detects the magnetic steel 571, generates an induction signal and transmits to the cab; then, the pin 541 is loosened, and under the rebound force of the second spring 542, the pin 541 is driven to be inserted into the other positioning hole of the angle positioning plate 56; after the crops are threshed and separated by the harvester, the straw is thrown back by the key-type riddle and falls from the end of the riddle to the front sliding plate 531, and is discharged along the front sliding plate 531 and the straw sliding plate 31.

[0079] If the width of the straw sliding on the straw sliding plate 31 does not meet the bundling width requirement of the bundling machine, first displace the raking plate 111 along the length direction of the connecting rod 112 and the screw rod 113 to the protrusion on the end wall of the raking plate 111 from one of the locking holes 121 of the spacing adjustment plate 12, cancel the rotation limiting of the raking plate 111, at this time the first spring 114 is compressed; then rotate the raking plate 111 along the axial direction of the connecting rod 112 and the screw rod 113, until the distance between the ends of the two raking plates 111 away from the spacing adjustment plate 12 meets the width requirement of the bundling machine; then loosen the raking plate 111, and the raking plate 111 is inserted into the other locking hole 121 of the spacing adjustment plate 12 under the rebound force of the first spring 114, and the rotation of the raking plate 111 is limited again.

[0080] When the harvester needs to be chopped, on the one hand, the pin 541 is pulled out of one of the positioning holes of the angle positioning plate 56, and still ensures that it passes through the driving plate 552, at this time the second spring 542 is compressed; then the rotating handle 51 is manually reversed, and the output shaft of the driving member 551 is retreated, so that the driving plate 552 is reversely rotated around the rotating shaft 52, in the process of reverse rotation of the driving plate 552, the driving plate 552 will assist the reverse rotation of the rotating handle 51 through the pin 541, and the rotating handle 51 will drive the straw slide plate 53 to synchronously reverse through the rotating shaft 52, until the bottom end of the rear slide plate 532 is arranged above the feeding port of the chopper 2, at this time the top end of the front slide plate 531 is separated from the sealing plate frame 61, and the proximity switch sensor 572 and the detected magnetic steel 571 are far away from each other, and no induction signal is generated; then, the pin 541 is loosened, and under the rebound force of the second spring 542, the pin 541 is driven to be inserted into the other positioning hole of the angle positioning plate 56. On the other hand, the output shaft of the angle adjusting mechanism 4 is retreated, so that the spreader housing 32 is relatively rotated with the housing of the chopper 2 around the support shaft 34, and the straw slide plate 31 and the raking mechanism 1 are synchronously relatively rotated with the housing of the chopper 2 around the rotating pin 35, until the outlet of the chopper 2 is aligned with the guide plate in the spreader housing 32. After the crops are threshed and separated by the harvester, the straw is thrown backward by the key-type raker, and falls from the end of the raker into the channel formed by the rear slide plate 532, the sealing plate 62 and the inner wall of the harvester tail cover, and enters the chopper 2 along the channel for chopping operation, and the chopped straw is uniformly thrown out to the farmland through the guide plate.

[0081] The present application can realize the quick switching between the chopping and straw spreading states in the operation process through the adjustment of the slide plate rotating mechanism 5 and the angle adjusting mechanism 4, so that the chopper 2 is avoided from being frequently disassembled; the adjustable straw spreading width of the raking mechanism 1 provides a plurality of straw spreading widths in the straw spreading state, and meets the demand width of different straw balers; and the chopper 2 has reduced user operation difficulty, saved manpower, and improved the continuity and operation efficiency of field operation.

[0082] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0083] In addition, the terms "first", "second", etc. are used only for the purpose of description and do not imply or imply relative importance or imply the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0084] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0085] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0086] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present application without contradiction.

[0087] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and cannot be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A swath cutting device for a harvester, characterized in that The variable grass width device comprises a chopper (2), a spreader (3), an angle adjusting mechanism (4), a slide plate rotating mechanism (5) and a grass blocking cover (6). The chopper (2) is fixed on the tail cover of the harvester. Two grass raking mechanisms (1) are fixed on the spreader (3) at intervals. The spreader (3) is hinged to the chopper (2). One end of the angle adjusting mechanism (4) is hinged to the side wall of the chopper (2), and the other end is hinged to the spreader (3). The grass blocking cover (6) is fixed in the tail cover of the harvester and is arranged above the chopper (2). The slide plate rotating mechanism (5) is rotatably installed in the tail cover of the harvester. The top end of the slide plate rotating mechanism (5) abuts or separates from the grass blocking cover (6), and the bottom end of the slide plate rotating mechanism (5) is arranged above the chopper (2) or above the spreader (3). The variable grass width device comprises two oppositely arranged grass raking mechanisms (1). Each grass raking mechanism (1) comprises a grass raking assembly (11) and a connecting plate (13). One end of the grass raking assembly (11) is rotatably connected to the connecting plate (13). The connecting plate (13) is provided with a plurality of locking holes (121). A protrusion fixed on the grass raking assembly (11) is clamped in one of the locking holes (121). One side of the connecting plate (13) is vertically fixed with a spacing adjusting plate (12). A plurality of locking holes (121) are arranged on the spacing adjusting plate (12) along the rotating direction of the end of the grass raking assembly (11). One end of the grass raking assembly (11) is rotatably connected to the spacing adjusting plate (12). The grass raking assembly (11) comprises a grass raking plate (111), a connecting rod (112), a screw rod (113), a first spring (114) and a nut (115). One end of the connecting rod (112) and one end of the screw rod (113) are fixed on both sides of the grass raking plate (111) one by one. The connecting rod (112) is rotatably arranged through the other side of the connecting plate (13). The screw rod (113) is rotatably arranged through the spacing adjusting plate (12). The nut (115) is threadedly arranged on the other end of the screw rod (113). The first spring (114) is arranged on the screw rod (113), and both ends of the first spring (114) are connected to the spacing adjusting plate (12) and the nut (115) one by one. The protrusion is fixed on one side of the end of the grass raking plate (111). ​ 2. The harvester row-cutting device of claim 1, wherein, The slide plate rotating mechanism (5) comprises a rotating handle (51), a rotating shaft (52), a straw slide plate (53), a locking assembly (54), a driving mechanism (55), an angle positioning plate (56) and a detection assembly (57). The angle positioning plate (56) is fixed on the harvester tail cover. The rotating shaft (52) is rotatably installed on the harvester tail cover, and one end of the rotating shaft (52) is fixedly connected with one end of the rotating handle (51) and one end of the straw slide plate (53). One end of the driving mechanism (55) is rotatably sleeved on the rotating shaft (52). The locking assembly (54) penetrates through the rotating handle (51) and the driving mechanism (55), and the end of the locking assembly (54) is inserted into one of the positioning holes of the angle positioning plate (56). The detection assembly (57) is connected with the driving mechanism (55) and the harvester tail cover. The top end of the straw slide plate (53) abuts against or separates from the grass blocking cover plate (6), and the bottom end of the straw slide plate (53) is arranged above the chopper (2) or above the spreader (3).

3. The harvester row-cutting device of claim 2, wherein, The locking assembly (54) comprises a latch (541), a second spring (542), a gasket (543) and a split pin (544). The latch (541) is an L-shaped rod structure. The latch (541) penetrates through the rotating handle (51), the gasket (543) and the driving mechanism (55) in sequence. The end of the latch (541) is inserted into the positioning hole. The split pin (544) penetrates through the side wall of the latch (541) and is arranged between the gasket (543) and the driving mechanism (55). The second spring (542) is sleeved on the latch (541), and the two ends of the second spring (542) are fixedly connected with the side wall of the rotating handle (51) and the side wall of the gasket (543) in sequence.

4. The harvester row-cutting device of claim 2, wherein, The driving mechanism (55) comprises a driving piece (551) and a driving plate (552). One end of the driving piece (551) is hinged to the harvester tail cover, and the other end of the driving piece (551) is hinged to one end of the driving plate (552). The other end of the driving plate (552) is rotatably sleeved on the rotating shaft (52). The locking assembly (54) penetrates through the driving plate (552).

5. The harvester row-cutting device of claim 4, wherein, The detection assembly (57) comprises a magnetic steel (571) and a proximity switch sensor (572). The proximity switch sensor (572) is fixed on the harvester tail cover. The magnetic steel (571) is fixed on the side wall of the driving plate (552).

6. The harvester row-cutting device of claim 1, wherein, The grass blocking cover plate (6) comprises a cover plate frame (61) and a cover plate (62). The cover plate frame (61) is fixed on the harvester tail cover. The cover plate (62) is detachably mounted at the bottom end of the cover plate frame (61). A handle for detaching the cover plate (62) from the cover plate frame (61) is fixed on the side wall of the cover plate (62). The bottom end of the cover plate (62) is arranged above the feed inlet of the chopper (2). The top end of the slide plate rotating mechanism (5) abuts against or separates from the cover plate frame (61).

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