CN113439546A

CN113439546A - High efficiency straw header

Info

Publication number: CN113439546A
Application number: CN202110878476.5A
Authority: CN
Inventors: 李衡; 李侠; 杨香林
Original assignee: Hebei Yinghu Agricultural Machinery Manufacturing Co Ltd
Current assignee: Hebei Yinghu Agricultural Machinery Manufacturing Co Ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2021-09-28

Abstract

The invention discloses a high-efficiency straw header which comprises a header frame and a header shell installed on the header frame, wherein the header shell comprises a left side plate, a right side plate, two rear side plates and a bottom plate, a straw outlet is formed between the two rear side plates, a straw cutting knife mechanism is arranged at the front end of the bottom plate and comprises a fixed knife assembly and a movable knife assembly, the fixed knife assembly comprises fixed knives which are arranged in parallel, each fixed knife comprises two fixed knife blocks, a fixed knife groove is formed between the fixed knife blocks, one ends of the two fixed knife blocks are connected together through a fixed knife installation block, the fixed knife installation block is installed on a fixed knife connection angle plate, and the fixed knife connection angle plate is installed at the front end of the bottom plate. The high-efficiency straw header provided by the invention adopts the reciprocating type cutting knife mechanism, the straw auger is provided with the symmetrical helical blades, the stirring and conveying mechanism is arranged in the middle, and the height of the straw auger is adjustable, so that the high-efficiency straw header has the advantages of high cutting efficiency, high conveying efficiency and high adaptability.

Description

High efficiency straw header

Technical Field

The invention relates to a high-efficiency straw header, and belongs to the technical field of corn harvesting.

Background

The corn harvester is an agricultural machine for harvesting ears and stalks, cuts corn stalks through a stalk cutting table in a cutting table device, and conveys the corn stalks backwards to a feeding device and a crushing device for processing. The straw cutting platform cuts off corn stalks from the bottom by a cutter arranged at the front end, and then the corn stalks are stirred backwards by a straw packing auger to a feeding device and a crushing device at the rear end of the cutting platform device. Therefore, the efficiency of the cutter and the poking efficiency of the straw auger have great influence on the harvesting of the corn straws.

For example, patent ZL201120170919.7 discloses a corn ear picking header of a corn harvester, which includes a stem cutting header, which cuts corn stalks by using a cutter at the front end of the stem cutting header, but the cutter is fixed and cuts the corn stalks only by using the pushing force of the cutter, and the cutting mode is easy to cause missed cutting of the corn stalks. And it utilizes the conveyer of belt to carry maize standing grain backward, and this kind of conveyer of belt conveying has low transport efficiency, causes the piling up jam of maize standing grain moreover easily, causes equipment trouble.

In addition, the prior patent ZL201310064409.7 discloses a small and medium-sized self-propelled stalk-ear corn combine harvester, which is provided with a lower header (straw header), wherein corn stalks are fed backwards by a stalk feeding auger to a feeding device, although the stalk feeding auger has certain capacity of feeding backwards, the stirring and feeding capacity of the auger blades is limited, and the stirring and feeding efficiency of the auger blades cannot meet the requirement of rapid harvesting. Furthermore, the auger is fixed in height, so that the mounting difficulty is increased, the height can not be adjusted, the corn harvester can not be suitable for harvesting corns with different densities, and the adaptability is lower.

Therefore, how to provide a high-efficiency straw cutting table with high cutting efficiency, high conveying efficiency and high adaptability is one of the technical difficulties which are urgently needed to be solved at present.

Disclosure of Invention

Aiming at the prior art, the invention aims to provide the high-efficiency straw header, the cutting knife adopts the fixed assembly and the movable knife assembly, the straw cutting efficiency is high, the straw auger is provided with symmetrical auger blades, the swinging deflector rod is arranged in the middle of the straw auger, the poking and feeding efficiency of the straw auger is greatly improved, and the straw auger is adjustable in height and has high adaptability.

The purpose of the invention is realized by the following technical scheme.

The utility model provides a high efficiency straw header, include header frame and install the header casing on the header frame, the header casing includes the left side board, the right side board, two posterior lateral plates and bottom plate, form the straw delivery outlet between two posterior lateral plates, the front end of bottom plate is provided with straw cutting knife mechanism, straw cutting knife mechanism includes stationary knife subassembly and moves the knife subassembly, stationary knife subassembly is including the stationary knife that sets up side by side, the stationary knife includes two stationary knife pieces, be provided with the stationary knife groove between the stationary knife piece, two stationary knife piece one ends link together through stationary knife installation piece, stationary knife installation piece is installed on stationary knife connection scute, the front end at the bottom plate is installed to stationary knife connection scute.

Further, move the sword subassembly including moving the sword that sets up side by side, move the sword and include the V-arrangement cutting edge, the reciprocal sword groove that passes of V-arrangement cutting edge, a plurality of move the sword and set up side by side, link together through moving the sword connecting plate between two adjacent move the sword, and then form integrative moving the sword subassembly, move and install on the sword subassembly and move the sword arm-tie, be provided with swing ring case on the right side board, be provided with the swing arm on the output shaft of swing ring case, it has the pull rod to articulate in the swing arm, the pull rod is connected with moving the sword arm-tie, swing ring case drives the reciprocal swing of swing arm, the swing arm drives pull rod reciprocating motion, the pull rod that shows pulls and moves sword arm-tie reciprocating motion, move the sword arm-tie and drive and move sword subassembly reciprocating motion, and then make and move sword reciprocating motion in the stationary knife groove.

Further, still include the straw auger, the both ends of straw auger are installed respectively on left side board and right side board, and the straw auger includes the roller, and the outside face symmetry of roller is provided with helical blade, and helical blade's side is provided with the strengthening rib.

Further, a first fixed disc is arranged in the roller, a spline shaft seat is arranged in the center of the first fixed disc, a spline shaft is arranged in the spline shaft seat in a matched mode, the spline shaft is rotatably installed on the right side plate, and a packing auger driving wheel is arranged at the end portion of the spline shaft.

Furthermore, a second fixed disk is further arranged in the roller, a first fixed shaft is arranged in the middle of the second fixed disk, the first fixed shaft is fixedly arranged on the left side plate, and the second fixed disk is in running fit with the first fixed shaft.

Furthermore, a first crank is arranged at the end part of the first fixed shaft, an eccentric shaft is arranged at the end part of the first crank, the axis of the eccentric shaft deviates from the axis of the first fixed shaft, when the roller rotates, the positions of the first fixed shaft and the eccentric shaft are fixed, and the roller drives the second fixed disc to rotate relative to the first fixed shaft and the eccentric shaft.

Further, rotate on the eccentric shaft and install toggle mechanism, toggle mechanism includes the driving lever, and the driving lever tip is provided with the staple bolt, and the staple bolt rotates and installs on the eccentric shaft, and the roller middle section is provided with the opening, and articulated seat is installed to the opening part, and articulated seat articulates there is articulated piece, and articulated piece is provided with the driving lever slide opening, and the driving lever slides and passes the driving lever slide opening.

Furthermore, a second crank is arranged at the end part of the eccentric shaft, a second fixed shaft is arranged at the end part of the second crank, the second fixed shaft is coaxial with the first fixed shaft and the roller, the second fixed shaft is rotatably arranged on a third fixed disc, and the third fixed disc is arranged in the roller.

Further, install right regulating plate on the right side board, fixed mounting has right axle bed on the right regulating plate, and the flower axle rotates to be installed on right axle bed, still is provided with right fixing base on the right side board, is provided with down the through-hole on the right regulating plate, is provided with the last through-hole that corresponds with lower through-hole on the right fixing base, goes up to wear to be provided with right accommodate the lead screw in through-hole and the lower through-hole, and threaded fit has fixation nut on the right accommodate the lead screw.

Further, install left regulating plate on the left side board, be provided with the dead axle through-hole on the left regulating plate, first dead axle passes the dead axle through-hole, still is provided with left fixing base on the left side board, is provided with down the through-hole on the left regulating plate, is provided with the last through-hole that corresponds with lower through-hole on the left fixing base, goes up to wear to be provided with left accommodate the lead screw in through-hole and the lower through-hole, and threaded fit has fixation nut on the accommodate the lead screw of a left side.

The invention has the advantages that:

1. the high-efficiency straw header provided by the invention adopts the fixed cutter assembly formed by arranging the plurality of fixed cutters in parallel and the movable cutter assembly formed by arranging the plurality of movable cutters in parallel, the movable cutter assembly is driven by the swinging ring box to reciprocate relative to the fixed cutter assembly for cutting, the cutting efficiency is higher, each fixed cutter is provided with two fixed cutter blocks, corn stalks can enter between the two fixed cutter blocks for cutting, and the cutting leakage can be effectively prevented.

2. Secondly, the straw auger is provided with symmetrical helical blade, and is effectual to gather together straw to the centre, sets up through the intermediate position and dials the mechanism and can be quick stir maize straw to feeding device backward, and conveying efficiency is high, and the angular position of first dead axle and off-axis is adjustable in addition, can further adjust and dial the angle of sending, improves the efficiency of dialling the mechanism and send.

3. In addition, the two ends of the straw auger are adjustable, the height of the auger can be adjusted according to different land parcels, so that the straw auger is suitable for the pulling and conveying of corn grains with different densities, and the adaptability is strong.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the overall structure of the present invention.

Fig. 3 is a third schematic view of the overall structure of the present invention.

Fig. 4 is a partial schematic view at a.

Fig. 5 is a partial schematic view at B.

Fig. 6 is a schematic view of the moving blade.

Fig. 7 is a schematic structural view of the stationary knife.

Fig. 8 is a partial schematic view at C.

Fig. 9 is a partial schematic view at D.

FIG. 10 is a schematic view of the straw auger.

FIG. 11 is an exploded view of the straw auger.

Fig. 12 is a partial schematic view at E.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

As shown in fig. 1 to 3, according to an embodiment of the present invention, a high efficiency straw header is provided, including a header frame 1 and a header housing mounted on the header frame 1, the header housing includes a left side plate 2.1, a right side plate 2.2, two rear side plates 2.3, and a bottom plate. A straw outlet 2.4 is formed between the two rear side plates 2.3. The front end of the bottom plate is provided with a straw cutter mechanism 3.

As shown in FIG. 5, the straw cutter mechanism 3 comprises a fixed knife assembly and a movable knife assembly. The fixed knife assembly comprises fixed knives 3.1 which are arranged in parallel, as shown in figure 7. The fixed cutter 3.1 comprises two fixed cutter blocks, a fixed cutter groove 3.11 is arranged between the fixed cutter blocks, and one ends of the two fixed cutter blocks are connected together through a fixed cutter mounting block. The fixed knife mounting block is mounted on the fixed knife connecting angle plate 3.3, and a plurality of fixed knives 3.1 are mounted on the fixed knife connecting angle plate 3.3 in parallel to form a fixed knife assembly. Preferably, the fixed cutter mounting block is mounted on the fixed cutter connecting angle plate 3.3 by rivets or bolts, so that the fixed cutter 3.1 is convenient to detach and replace. The fixed knife connecting angle plate 3.3 is arranged at the front end of the bottom plate.

The moving blade assembly comprises moving blades 3.2 which are arranged in parallel, as shown in figure 6. The movable blade 3.2 comprises a V-shaped blade 3.21. The V-shaped blade 3.21 passes through the fixed blade groove 3.11 in a reciprocating mode to cut straws entering between the two fixed blade blocks. The moving blades 3.2 are arranged in parallel, and the adjacent moving blades 3.2 are connected together through a moving blade connecting plate to form an integrated moving blade assembly. As shown in fig. 5, the moving blade assembly is provided with a moving blade pulling plate 3.4, and the moving blade assembly is driven to reciprocate relative to the fixed blade assembly by reciprocating the moving blade pulling plate. Preferably, the movable blade pulling plate 3.4 is made of an elastic material.

As shown in fig. 2-3 and 5, a swing ring box 4 is arranged on the right side plate 2.2, a swing arm 4.1 is arranged on an output shaft of the swing ring box 4, a pull rod 4.2 is hinged on the swing arm 4.1, and the pull rod 4.2 is connected with the movable knife pull plate 3.4. The swing ring box 4 drives the swing arm 4.1 to swing in a reciprocating mode, the swing arm 4.1 drives the pull rod 4.2 to move in a reciprocating mode, the pull rod 4.2 drives the movable cutter pull plate 3.4 to move in a reciprocating mode, the movable cutter pull plate 3.4 drives the movable cutter assembly to move in a reciprocating mode, the movable cutter 3.1 is made to move in a reciprocating mode in the fixed cutter groove 3.11, and corn grains entering between the two fixed cutter blocks are cut off. The corn stalks are cut off by adopting the reciprocating type straw cutter mechanism, compared with a fixed cutter, the cutting efficiency of the stalks is greatly improved, and the corn stalks can be effectively prevented from being missed to be cut by the plurality of fixed cutters and the plurality of movable cutters which are arranged in parallel, so that the harvesting quality of the corn stalks is improved.

As shown in fig. 1-3, the high-efficiency straw header further comprises a straw packing auger 5, and two ends of the straw packing auger 5 are respectively installed on the left side plate 2.1 and the right side plate 2.2. As shown in figures 10-12, the straw auger 5 comprises a roller 5.01, and helical blades 5.02 are symmetrically arranged on the outer side surface of the roller 5.01. Through the helical blade 5.02 that the symmetry set up, the straw that will cut off gathers together to the centre at helical blade 5.02 in-process of stirring backward for the maize straw that enters into the straw header gathers together just to straw delivery outlet 2.4, prevents effectively that the straw from gathering in the header and blockking up, reduces the fault rate of equipment. Preferably, the side surface of the helical blade 5.02 is provided with a reinforcing rib 5.021, the structural strength of the helical blade 5.02 is increased through the reinforcing rib 5.021, the helical blade 5.02 is prevented from being deformed and damaged, the service life of the helical blade is prolonged, and the failure rate of equipment is further reduced. A shifting mechanism is arranged between the two helical blades 5.02 on the straw auger 5, and the position of the shifting mechanism corresponds to the straw output port 2.4. The gathered straws are stirred backwards by the stirring mechanism and are output from the straw output port 2.4 to enter the feeding device.

As shown in fig. 10-11, a first fixed disk 5.03 is arranged in the roller 5.01, a spline shaft seat 5.031 is arranged at the center of the first fixed disk 5.03, a spline shaft 5.04 is arranged in the spline shaft seat 5.031 in a matching manner, and the spline shaft 5.04 is rotatably mounted on the right side plate 2.2. The end part of the spline shaft 5.04 is provided with an auger driving wheel 5.05, and the auger driving wheel 5.05 is connected with a transmission system. The auger driving wheel 5.05 is driven to rotate through the transmission system, the auger driving wheel 5.05 drives the spline shaft 5.04 to rotate, the spline shaft 5.04 drives the first fixing disc 5.03 to rotate, the first fixing disc 5.03 drives the roller 5.01 to rotate, and then the straw auger 5 starts to rotate to work.

Still be provided with second fixed disk 5.06 in the roller 5.01, be provided with first fixed axle 5.07 in the middle of second fixed disk 5.06, first fixed axle 5.07 fixed mounting is on left side board 2.1. The second fixed disc 5.06 is in running fit with the first fixed shaft 5.07. A first crank 5.08 is arranged at the end part of the first fixed shaft 5.07, an eccentric shaft 5.09 is arranged at the end part of the first crank 5.08, and the axis of the eccentric shaft 5.09 is deviated from the axis of the first fixed shaft 5.07. When the roller 5.01 rotates, the first fixed shaft 5.07 and the offset shaft 5.09 are fixed in position, and the roller 5.01 drives the second fixed disc 5.06 to rotate relative to the first fixed shaft 5.07 and the offset shaft 5.09 instead of rotating together.

As shown in fig. 12, a toggle mechanism is rotatably mounted on the eccentric shaft 5.09. The toggle mechanism comprises a toggle lever 5.10, an anchor ear 5.11 is arranged at the end part of the toggle lever 5.10, and the anchor ear 5.11 is rotatably arranged on an eccentric shaft 5.09. Roller 5.01 middle section is provided with opening 5.011, opening 5.011 department installs articulated seat 5.12, articulated seat 5.12 articulates there is articulated piece 5.13, articulated piece 5.13 is provided with the driving lever slide opening, driving lever 5.10 slides and passes the driving lever slide opening. When the roller 5.01 rotates, the first fixed shaft 5.07 and the eccentric shaft 5.09 are fixed, the roller 5.01 drives the hinged seat 5.12, the hinged block 5.13 and the deflector rod 5.10 to rotate, and the eccentric shaft 5.09 deviates from the central axis of the roller 5.01, so that the deflector rod 5.10 regularly extends out and retracts relative to the roller 5.01 when rotating, backward poking and feeding of straws are realized, the backward poking and feeding efficiency of the straws is further improved, the straws are prevented from being accumulated, and the risk of straw blockage is reduced.

As shown in fig. 11, a second crank (not shown) is disposed at an end of the eccentric shaft 5.09, a second fixed shaft 5.14 is mounted at an end of the second crank, and the second fixed shaft 5.14 is coaxial with the first fixed shaft 5.07 and coaxial with the roller 5.01. The second fixed shaft 5.14 is rotatably arranged on a third fixed disc 5.15, and the third fixed disc 5.15 is arranged in the roller 5.01. Through setting up second crank, second dead axle 5.14, third fixed disk 5.15 increased off-axis 5.09's stability, prevent that it from rocking two and reducing the efficiency of dialling and sending.

As shown in fig. 8, a right adjusting plate 7.1 is mounted on the right side plate 2.2, a right shaft seat 7.2 is fixedly mounted on the right adjusting plate 7.1, and the spline shaft 5.04 is rotatably mounted on the right shaft seat 7.2. And a right fixed seat 7.4 is also arranged on the right side plate 2.2. A lower through hole is formed in the right adjusting plate 7.1, and an upper through hole corresponding to the lower through hole is formed in the right fixing seat 7.4. Go up the through-hole and wear to be provided with right accommodate the lead screw 7.3 in the through-hole down, screw-thread fit has fixation nut on the right accommodate the lead screw 7.3, both sides and the upper and lower both sides of last through-hole all are provided with fixation nut about the through-hole down, and the position of adjusting and fixing right accommodate the board 7.1 on right accommodate the lead screw 7.3 through adjusting fixation nut. Adjust the position of right regulating plate 7.1 from top to bottom and then realize the regulation to the height of straw auger 5, and then adjust the position of dialling of straw auger, improve the efficiency of dialling of auger and send, the installation degree of difficulty of reducing the auger of making level of the auger of being convenient for moreover.

As shown in fig. 4, a left adjusting plate 6.1 is installed on the left side plate 2.1, a dead axle through hole is formed in the left adjusting plate 6.1, and the first dead axle 5.07 penetrates through the dead axle through hole. And a left fixed seat 6.3 is also arranged on the left side plate 2.1. A lower through hole is formed in the left adjusting plate 6.1, and an upper through hole corresponding to the lower through hole is formed in the left fixing seat 6.3. The upper through hole and the lower through hole are internally provided with a left adjusting screw rod 6.2 in a penetrating manner, the left adjusting screw rod 6.2 is provided with a fixing nut in a threaded fit manner, and the upper side and the lower side of the lower through hole and the upper side and the lower side of the upper through hole are both provided with the fixing nuts. The position of the left adjusting plate 6.1 is adjusted and fixed by adjusting the position of the fixing nut on the left adjusting screw 6.2. Adjust the position of left regulating plate 6.1 and right regulating plate 7.1 from top to bottom and then realize the regulation to the height of straw auger 5, and then adjust the group of straw auger and send the position, improve the group of auger and send efficiency to adapt to the group of different density maize standing grain, increase its adaptability, the installation degree of difficulty of auger is reduced to the making level of the auger of being convenient for moreover.

As shown in fig. 4, the end of the first fixed shaft 5.07 is further provided with a fixed shaft limiting assembly, the fixed shaft limiting assembly comprises a limiting sleeve 6.4, the limiting sleeve 6.4 is sleeved on the first fixed shaft 5.07, the limiting sleeve 6.4 and the first fixed shaft 5.07 are fixedly arranged, preferably, the two are connected through a key. A limiting plate 6.41 is arranged on the side surface of the limiting sleeve 6.4, and a first long hole 6.42 is arranged on the limiting plate 6.41. Spacing diaphragm 6.5 is installed on header frame 1, be provided with second slot hole 6.51 on the spacing diaphragm 6.5. Adopt spacing bolt 6.6 to pass first slot hole 6.42 and second slot hole 6.51 simultaneously and fix limiting plate 6.41 on spacing diaphragm 6.5, and then with the fixed position of stop collar 6.4, fix the fixed position of first dead axle 5.07 through stop collar 6.4. The setting of first slot hole 6.42 and second slot hole 6.51 can make the position of limiting plate 6.41 adjust, can realize the regulation to first fixed axis 5.07 and off-axis 5.09 position simultaneously, and then realize the regulation to toggle mechanism stir the angle to the dial of adaptation different density maize standing grain is sent, has further stood up and has been sent efficiency.

As shown in fig. 9, a transmission mechanism mounting plate 8 is mounted on the rear side plate 2.3, a header main shaft 8.1 is arranged on the transmission mechanism mounting plate 8, and the header main shaft 8.1 is connected with an engine through a transmission system. Header main shaft 8.1 is connected with jackshaft 8.2 transmission through chain or belt, be provided with first output wheel 8.4 on the jackshaft 8.2, first output wheel 8.4 is connected in order to drive straw auger 5 and rotate through chain and 5.05 transmission of auger drive wheel. Be provided with second output wheel 8.3 on the jackshaft 8.2, second output wheel 8.3 is connected in order to drive the work of swing ring case 4 through belt or chain and the drive wheel transmission of swing ring case 4, drives through swing ring case 4 and moves the cutting of sword subassembly reciprocating motion to the maize standing grain. The transmission mechanism provided by the invention has the advantages of low transmission stage number, high transmission efficiency, simple structure and low failure rate.

The high-efficiency straw header provided by the invention comprises the following specific working processes: the engine drives the header main shaft 8.1 to rotate through the transmission system, and the header main shaft 8.1 drives the intermediate shaft 8.2 to rotate. Jackshaft 8.2 drives the work of swing ring case 4 through second output wheel 8.3, and swing ring case 4 drives swing arm 4.1 reciprocating swing, swing arm 4.1 drives pull rod 4.2 reciprocating motion, and shown pull rod 4.2 pulling moves sword arm-tie 3.4 reciprocating motion, move sword arm-tie 3.4 and drive and move sword subassembly reciprocating motion, and then make and move sword 3.1 reciprocating motion in stationary knife groove 3.11, and then will get into the maize standing grain between two stationary knife pieces and cut off. The jackshaft 8.2 drives auger drive wheel 5.05, flower axle 5.04 through first output wheel 8.4 and rotates, and flower axle 5.04 drives first fixed disk 5.03 and rotates, and first fixed disk 5.03 drives roller 5.01 and rotates, and the roller drives two helical blade 5.02 and gathers together to the mechanism is sent to dialling to the centre with the straw of cutting off. The roller 5.01 rotates relative to the eccentric shaft 5.09 and the first fixed shaft 5.07, meanwhile, the roller 5.01 drives the hinged seat 5.12, the hinged block 5.13 and the shifting rod 5.10 to rotate, and as the eccentric shaft 5.09 deviates from the central axis of the roller 5.01, the roller 5.10 regularly extends out and retracts relative to the roller 5.01 during rotation, so that the straw is shifted backwards.

The high-efficiency straw header provided by the invention adopts the fixed cutter assembly formed by arranging the plurality of fixed cutters in parallel and the movable cutter assembly formed by arranging the plurality of movable cutters in parallel, the movable cutter assembly is driven by the swinging ring box to reciprocate relative to the fixed cutter assembly for cutting, the cutting efficiency is higher, each fixed cutter is provided with two fixed cutter blocks, corn stalks can enter between the two fixed cutter blocks for cutting, and the cutting leakage can be effectively prevented. Secondly, the straw auger is provided with symmetrical helical blade, and is effectual to gather together straw to the centre, sets up through the intermediate position and dials the mechanism and can be quick stir maize straw to feeding device backward, and conveying efficiency is high, and the angular position of first dead axle and off-axis is adjustable in addition, can further adjust and dial the angle of sending, improves the efficiency of dialling the mechanism and send. In addition, the two ends of the straw auger are adjustable, the height of the auger can be adjusted according to different land parcels, so that the straw auger is suitable for the pulling and conveying of corn grains with different densities, and the adaptability is strong.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The utility model provides a high efficiency straw header, includes header frame (1) and installs the header casing on header frame (1), and the header casing includes left side board (2.1), right side board (2.2), two posterior lateral plate (2.3) and bottom plate, forms straw delivery outlet (2.4) between two posterior lateral plate (2.3), and the front end of bottom plate is provided with straw cutting knife mechanism (3), its characterized in that: the straw cutting knife mechanism (3) comprises a fixed knife assembly and a movable knife assembly, the fixed knife assembly comprises fixed knives (3.1) which are arranged side by side, the fixed knives (3.1) comprise two fixed knife blocks, a fixed knife groove (3.11) is arranged between the fixed knife blocks, one ends of the two fixed knife blocks are connected together through a fixed knife mounting block, the fixed knife mounting block is mounted on a fixed knife connecting angle plate (3.3), and the fixed knife connecting angle plate (3.3) is mounted at the front end of the bottom plate.

2. The high efficiency straw header of claim 1, wherein: the movable knife component comprises movable knives (3.2) arranged in parallel, the movable knives (3.2) comprise V-shaped cutting edges (3.21), the V-shaped cutting edges (3.21) penetrate through the fixed knife grooves (3.11) in a reciprocating mode, the plurality of movable knives (3.2) are arranged in parallel, two adjacent movable knives (3.2) are connected together through a movable knife connecting plate to form an integrated movable knife component, a movable knife pull plate (3.4) is installed on the movable knife component, a swing ring box (4) is arranged on a right side plate (2.2), a swing arm (4.1) is arranged on an output shaft of the swing ring box (4), a pull rod (4.2) is hinged on the swing arm (4.1), the pull rod (4.2) is connected with the movable knife pull plate (3.4), the swing ring box (4) drives the swing arm (4.1) to swing in a reciprocating mode, the swing arm (4.1) drives the pull rod (4.2) to move in a reciprocating mode, the pull rod (4.2) pulls the movable knife pull plate (3.4.2) to move in a reciprocating mode, the movable knife component (3.2) moves in a reciprocating mode, further, the movable knife (3.1) moves in a reciprocating way in the fixed knife slot (3.11).

3. The high efficiency straw header of claim 1, wherein: the straw packing auger is characterized by further comprising a straw packing auger (5), wherein two ends of the straw packing auger (5) are respectively installed on the left side plate (2.1) and the right side plate (2.2), the straw packing auger (5) comprises a roller (5.01), helical blades (5.02) are symmetrically arranged on the outer side face of the roller (5.01), and reinforcing ribs (5.021) are arranged on the side face of each helical blade (5.02).

4. The high efficiency straw header of claim 1, wherein: a first fixed disc (5.03) is arranged in the roller (5.01), a flower shaft seat (5.031) is arranged at the center of the first fixed disc (5.03), a flower shaft (5.04) is arranged in the flower shaft seat (5.031) in a matched mode, the flower shaft (5.04) is rotatably installed on the right side plate (2.2), and a packing auger driving wheel (5.05) is arranged at the end part of the flower shaft (5.04).

5. The high efficiency straw header of claim 1, wherein: the roller (5.01) is also internally provided with a second fixed disk (5.06), a first fixed shaft (5.07) is arranged in the middle of the second fixed disk (5.06), the first fixed shaft (5.07) is fixedly arranged on the left side plate (2.1), and the second fixed disk (5.06) is in running fit with the first fixed shaft (5.07).

6. The high efficiency straw header of claim 1, wherein: the end part of the first fixed shaft (5.07) is provided with a first crank (5.08), the end part of the first crank (5.08) is provided with an eccentric shaft (5.09), the axis of the eccentric shaft (5.09) deviates from the axis of the first fixed shaft (5.07), when the roller (5.01) rotates, the positions of the first fixed shaft (5.07) and the eccentric shaft (5.09) are fixed, and the roller (5.01) drives the second fixed disc (5.06) to rotate relative to the first fixed shaft (5.07) and the eccentric shaft (5.09).

7. The high efficiency straw header of claim 1, wherein: the eccentric shaft (5.09) is provided with a toggle mechanism in a rotating mode, the toggle mechanism comprises a toggle rod (5.10), the end portion of the toggle rod (5.10) is provided with an anchor ear (5.11), the anchor ear (5.11) is installed on the eccentric shaft (5.09) in a rotating mode, the middle section of the roller (5.01) is provided with an opening (5.011), the opening (5.011) is provided with a hinged seat (5.12), the hinged seat (5.12) is hinged with a hinged block (5.13), the hinged block (5.13) is provided with a toggle rod sliding hole, and the toggle rod (5.10) penetrates through the toggle rod sliding hole in a sliding mode.

8. The high efficiency straw header of claim 1, wherein: the end part of the eccentric shaft (5.09) is provided with a second crank, the end part of the second crank is provided with a second fixed shaft (5.14), the second fixed shaft (5.14) is coaxial with the first fixed shaft (5.07) and coaxial with the roller (5.01), the second fixed shaft (5.14) is rotatably arranged on a third fixed disc (5.15), and the third fixed disc (5.15) is arranged in the roller (5.01).

9. The high efficiency straw header of claim 1, wherein: install right regulating plate (7.1) on right side board (2.2), fixed mounting has right axle bed (7.2) on right regulating plate (7.1), rachis (5.04) rotate the installation on right axle bed (7.2), still be provided with right fixing base (7.4) on right side board (2.2), be provided with down the through-hole on right regulating plate (7.1), be provided with the last through-hole that corresponds with lower through-hole on right fixing base (7.4), it is provided with right accommodate the lead screw (7.3) to wear in through-hole and the lower through-hole to go up, screw-thread fit has fixation nut on right accommodate the lead screw (7.3).

10. The high efficiency straw header of claim 1, wherein: install left regulating plate (6.1) on left side board (2.1), be provided with the dead axle through-hole on left regulating plate (6.1), dead axle through-hole is passed in first dead axle (5.07), still be provided with left fixing base (6.3) on left side board (2.1), be provided with down the through-hole on left regulating plate (6.1), be provided with the last through-hole that corresponds with lower through-hole on left fixing base (6.3), it is provided with left accommodate the lead screw (6.2) to wear in through-hole and the lower through-hole, screw-thread fit has fixation nut on left accommodate the lead screw (6.2).