CN114246056B - Wide foldable rape cutter-rower based on crawler-type power chassis - Google Patents

Abstract

The invention discloses a wide foldable rape cutter-rower based on a crawler-type power chassis, which comprises the crawler-type power chassis, a hydraulic folding device, a rotary hydraulic cylinder, a left cutting table monomer and a right cutting table monomer; the left cutting table monomer and the right cutting table monomer are symmetrically hinged at two ends of the hydraulic folding device; the left cutting table monomer and the right cutting table monomer have the same structure and comprise a left conveying device and a right conveying device, a seedling discharging opening is formed in a neutral position area between the two conveying devices, longitudinal extension lines of the seedling discharging opening are symmetrically arranged on two sides of the crawler-type power chassis, and the seedling discharging opening is laid on the outer side of the crawler in a proper position, so that procedures such as cutting, conveying, laying and airing of rape are realized, the working efficiency and the laying quality of rape harvesting are improved, and meanwhile, the contradiction between the width increase and road transportation is solved. The cutting table is connected with the power chassis through the hydraulic folding device, the width of the machine in the transverse direction is reduced by the folded cutting table, and the functions of wide-width operation and narrow-width transportation are realized.

Description

Wide foldable rape cutter-rower based on crawler-type power chassis

Technical Field

The invention relates to the field of agricultural machinery, in particular to a wide foldable rape cutter-rower based on a crawler-type power chassis.

Background

Rape is one of important oil crops in China, and has the largest planting area and the widest distribution range. In recent years, under the influence of rural labor force transfer and imported oil impact, the rape planting cost is continuously increased, the planting benefit is continuously reduced, and the development of the rape industry is also under great pressure. The traditional production mode of rape still depends on manual work, but the production cost is higher, efficiency is lower, intensity of labour is big, the benefit is low, strikes many peasant household's rape production enthusiasm. At present, the mechanized level of rape in China is lower, and the quantity of tools which can be put into actual production is less, so that the production efficiency of the rape is limited, and the mechanized production of the rape is urgent.

The mechanized harvesting mode of rape mainly comprises two modes of combined harvesting and segmented harvesting, wherein the segmented harvesting is an operation mode of fully utilizing the after-ripening characteristic of rape, cutting and airing rape on stubble for several days when the majority of rape pod fruits are yellow green to light yellow, and picking up and threshing after the rape pod fruits are fully ripe. The harvesting mode has the advantages of long suitable harvest period, full seeds, high content, excellent quality, low loss rate and the like, has strong adaptability to rape with multiple branches, different varieties and inconsistent maturity, and is suitable for rice and oil rotation and paddy field dry farming cultivation modes in the middle and downstream regions of Yangtze river.

With attention paid to the quality of rapeseeds and the harvest loss, the advantages of segmented harvest are gradually highlighted, and the rapeseeds are also increasingly favored by people. The cutting and sunning operation is a first link of segmented harvesting, and the operation quality directly influences the subsequent picking and threshing. The rape cutter-rower at the present stage is mainly divided into two main types, namely a middle-laying cutter-rower matched with a high-clearance wheeled tractor or a crawler-type combined harvesting chassis. The patent with the application number of 201210559271.1 discloses a cutter-rower suitable for rape harvesting, the operation breadth is 1.85 meters, a conveying mode of combining a conveying belt and a vertical roller is adopted, a cutting table is hung in front of a wheeled tractor, cut rape is conveyed to the middle under the action of a transverse conveying device and is laid on a middle channel, the whole machine adopts front suspension type assembly, and the problems that the turning radius of the wheeled tractor is large, front wheel load is easy to sink, the machine trafficability is insufficient and the like exist. The patent with application number 201910716746.5 discloses a crawler self-propelled backpack rape cutter-rower, the whole machine adopts hydraulic transmission, the operation breadth is 2 meters, the laying form is a middle strip laying, the crawler-type chassis with high ground clearance is matched as power, the field trafficability of the chassis is improved, meanwhile, the conveying device which is obliquely arranged left and right is matched, so that the conveying distance of rape is shortened, the conditions of blockage, winding and the like during conveying are improved, but a special chassis is matched, the universality is poor, and the production cost is high.

The other is a side-laid cutter-rower with a cutting table hung on a small tractor or a crawler chassis. The patent with application number 201310551815.4 discloses a hand rape cutter-rower, a header is arranged in front of a hand tractor, a middle seedling dividing and guiding laying device is adopted, and rape is laid on two sides of a machine tool in a proper position under the action of advancing speed and inertia of rape stems. The whole machine has simple structure and convenient assembly and disassembly, is suitable for small field work in hilly areas, but needs people to walk the machine forward, has high labor intensity, and does not have the guide support of reel. The patent with the application number of 201410517596.2 discloses a small crawler-type rape cutter-rower which is matched with a small crawler-type power chassis, and the height of a header is changed through a lifting adjusting device so as to control the height of a stubble. The patent with the application number of 201911104258.5 discloses a small-sized hand-held unilateral rape cutter-rower, a header is connected with a crawler chassis through a height adjusting mechanism, and cut rape is conveyed to one side under the action of a transverse conveying chain and then laid on the outer side of the machine under the action of gravity. The side-laying cutter-rower has the advantages that the side-laying cutter-rower is simpler in structure and convenient to install, manual channel opening is needed, materials are laid and conveyed in a chain length, blockage and winding are easy, and the laying quality is difficult to guarantee.

Disclosure of Invention

Aiming at the defects of the technology, the invention provides the crawler-type power chassis-based wide-width foldable rape cutter-rower which can improve the rape harvesting efficiency, reduce the labor intensity, ensure the rape laying quality, facilitate road transportation, avoid manual opening before operation and have large holding quantity.

In order to achieve the purpose, the wide foldable rape cutter-rower based on the crawler-type power chassis comprises the crawler-type power chassis, a hydraulic folding device, a rotary hydraulic cylinder, a left cutting table monomer and a right cutting table monomer; the left cutting table monomer and the right cutting table monomer are symmetrically hinged at two ends of the hydraulic folding device; the left cutting table monomer and the right cutting table monomer have the same structure and comprise a left conveying device and a right conveying device, a seedling discharging opening is formed in a neutral position area between the two conveying devices, and longitudinal extension lines of the seedling discharging opening are symmetrically arranged on two sides of the crawler-type power chassis.

Further, the right cutting table unit further comprises a cutting table frame, a grain pulling system hinged on a front upper beam of the cutting table frame, a pair of inner hinges welded between the front upper beam and a rear upper beam of the cutting table frame, a driven grain divider vertically arranged on a truss in front of the inner side of the cutting table frame, a transverse cutter arranged on a beam at the bottom of the front of the cutting table frame and positioned below the grain pulling system, a vertical cutter vertically arranged on a truss in front of the outer side of the cutting table frame and positioned in front of the transverse cutter, and a pair of grain pulling wheel lifting hydraulic cylinders, wherein the left conveying device is obliquely arranged outside the right cutting table unit and positioned below the grain pulling system, and the right conveying device is obliquely arranged inside the right cutting table unit and positioned below the grain pulling system; one end of a reel lifting hydraulic cylinder is hinged on the bottom inner side frame of the header frame, the other end of the reel lifting hydraulic cylinder is hinged on the inner side frame of the reel system, and one end of the other reel lifting hydraulic cylinder is hinged on the bottom outer side frame of the header frame, and the other end of the reel lifting hydraulic cylinder is hinged on the outer side frame of the reel system; the vertical cutter and the horizontal cutter are mutually perpendicular in mounting plane, and are connected and transmitted through a set of ball pair; the driven crop divider and the vertical cutters are arranged on two sides of the header frame in parallel, and the driven crop divider is positioned in front of the vertical cutters.

Further, the hydraulic folding device comprises a hanging rack, a pair of guide rails arranged on a truss in front of the hanging rack, sliding blocks arranged on two sides of the pair of guide rails, a cutting table hanging rack arranged on each sliding block, an outer hinge arranged on each cutting table hanging rack and a pair of contraction hydraulic cylinders, wherein the hanging rack is fixed on a crawler-type power chassis through a rotating shaft at the rear part of the hanging rack; a pair of outer hinges on the right header hanging frame are connected with an inner hinge in the middle of a front upper beam and a rear upper beam of a header frame of a right header unit through pins; a pair of external hinges on the left header hanging frame are connected with an internal hinge in the middle of the front upper cross beam and the rear upper cross beam of the header frame of the left header unit through pins; an outer hinge at one end of the rotary hydraulic cylinder at the right side is connected with an inner hinge of a header frame of the right header unit through a pin, and an inner hinge at the other end of the rotary hydraulic cylinder is connected with an outer hinge on a header hanging frame at the right side through a pin; the outer hinge at one end of the rotary hydraulic cylinder at the left side is connected with the inner hinge of the header frame of the left header unit through a pin, and the inner hinge at the other end of the rotary hydraulic cylinder is connected with the outer hinge on the header hanging frame at the left side through a pin; the shell of the contraction hydraulic cylinder positioned above is fixed on the hanging rack, and the telescopic rod of the contraction hydraulic cylinder is hung on the cutting table hanging rack on one side; the shell of the contraction hydraulic cylinder positioned below is fixed on the hanging frame, and the telescopic rod of the contraction hydraulic cylinder is hung on the cutting table hanging frame on the other side.

Further, the single transmission system of right header includes the first transmission shaft of horizontal arrangement on header frame right side back below truss, the horizontal installation is at the second transmission shaft on header frame right side back upper truss, install on header frame back upper truss and be located the third transmission shaft left side, the right commutator of slope arrangement at header frame right back truss, the left commutator of slope arrangement at header frame left back truss, install the hydraulic motor on header frame back lower beam, the first shaft coupling of connection between hydraulic motor and first transmission shaft, install the first sprocket on first transmission shaft right side, install the second sprocket on second transmission shaft right-hand member and be the small pulley on second sprocket right side, install the changeover pulley on reel system support right side, install the big pulley on reel right side, install the third sprocket on second transmission shaft left end, install the fourth sprocket of right side input shaft, the connection is between second transmission shaft and third sprocket, install the changeover pulley through changeover pulley between changeover pulley and the changeover pulley, the changeover pulley is installed between changeover pulley and the changeover pulley through changeover pulley, the changeover pulley is installed to the fourth transmission shaft and the fifth transmission shaft, the changeover pulley is connected between changeover pulley and the fifth transmission shaft through changeover pulley, the changeover pulley is installed to the changeover pulley through changeover pulley between changeover pulley and the fourth transmission shaft and the fifth transmission shaft, the changeover pulley.

Further, the right conveying device comprises a driving shaft, a pair of side plates, an anti-deviation conveying belt, spring teeth and a driven shaft; the two ends of the driving shaft are provided with belt seat bearings, the two ends of the driven shaft are provided with tensioning bearings, the tensioning bearings are used for adjusting tightness of the anti-deviation conveying belt, and the tensioning bearings and the belt seat bearings are respectively fixed on two sides of the two side plates through bolts; a plurality of rubber sleeves are uniformly sleeved on the driving shaft and the driven shaft along the axial direction, the rubber sleeves on the driving shaft and the rubber sleeves on the driven shaft are arranged in a one-to-one correspondence manner, and the rubber sleeves are fixed with the shaft through bolts in the radial direction; the anti-deviation conveying belt is wrapped on the rubber sleeve; the spring teeth are arranged on the outer side surface of the anti-deviation conveying belt in an array mode through bolts.

Further, the spring tooth comprises a bottom mounting seat and two flexible racks extending from the bottom mounting seat, an obtuse angle is formed between the flexible racks and the plane of the anti-deviation conveying belt, and the bottom mounting seat is provided with two through holes which are fixed on the anti-deviation conveying belt through bolts; each row of spring teeth is positioned at a gap position between two adjacent rubber sleeves.

Further, the installation inclination angles of the left conveying device and the right conveying device are 30-45 degrees, and the rotation directions of the left conveying device and the right conveying device are opposite.

Further, guide strips are arranged at two ends of the inner surface of the anti-deviation conveying belt, and are clamped on the side walls of the rubber sleeves at two ends.

Compared with the prior art, the invention has the beneficial effects that: the crawler-type power chassis matched with the wide foldable rape cutter-rower has the advantages of high operation speed, high efficiency and good field trafficability, and improves the utilization rate of the combined power chassis; the power chassis and the cutting table are connected together through the hydraulic folding device, the transverse width of the folded machine tool is reduced by 1.4m, the transportation is convenient, and the transportation cost is reduced; the double-channel header ensures that rape is laid on the outer side of the crawler belt, and the cut rape is conveyed to the middle laying channel through the left laying roller and the right laying roller, so that the processes of lapping the rape head and the tail, orderly laying and airing the rape stubble are realized, and deterioration caused by accumulated water in the field during airing the rape is prevented. The invention is beneficial to solving the problems of low efficiency, poor laying quality, high transportation cost and the like of the current rape cutter-rower.

Drawings

FIG. 1 is a schematic diagram of the whole structure of a rape cutter-rower of the present invention;

FIG. 2 is a schematic diagram of the front view of FIG. 1

FIG. 3 is a schematic view of the header in FIG. 1 after the header is folded and contracted;

FIG. 4 is a schematic diagram of a header unit in FIG. 1;

FIG. 5 is a schematic diagram of the transmission structure of FIG. 4;

FIG. 6 is a schematic view of the hydraulic folding mechanism of FIG. 1;

FIG. 7 is a schematic view of the lateral transport device of FIG. 1;

fig. 8 is a schematic view of the arrangement position of the spring teeth in fig. 7.

Wherein: the crawler-type power chassis 1, folding hitch 2 (hitch frame 21, rotating shaft 22, sliding block 23, header hitch frame 24, outer hinge 25, retraction hydraulic cylinder 26, guide rail 27), rotary hydraulic cylinder 3, left header unit 4, right header unit 5 (reel system 51, left conveyor 52, header frame 53, inner hinge 54, right conveyor 55, reel lifting hydraulic cylinder 56, driven divider 57, spreader 58, vertical cutter 59), reel discharging port 6, hydraulic motor 511, first coupling 512, first drive shaft 513, first sprocket 514, second sprocket 515, small sprocket 516, transition sprocket 517, large sprocket 518, second drive shaft 519, right commutator 520, fourth sprocket 521, third sprocket 522, second coupling 523, third drive shaft 524, fifth sprocket, left commutator 526, sixth sprocket 527, drive shaft 551, side plate 552, tensioning bearing 553, deflection preventing conveyor 554, spring tooth (bottom mount 555a, flexible rack mount 555 b), driven shaft 556, 557, and rack mount 558).

Detailed Description

The present invention is described in further detail below in conjunction with the drawings and specific embodiments for the understanding of those skilled in the art.

The wide foldable rape cutter-rower based on the crawler-type power chassis as shown in figures 1, 2 and 3 comprises a crawler-type power chassis 1, a hydraulic folding device 2, a rotary hydraulic cylinder 3, a left cutting table unit 4 and a right cutting table unit 5; the crawler-type power chassis 1 is a power source of a running gear and a cutting table of the whole machine, the hydraulic folding device 2 is of an asymmetric structure and is arranged on the right side of the whole machine, the left cutting table single body 4 and the right cutting table single body 5 are symmetrically hinged to two ends of the hydraulic folding device 2 through hinges, and can be changed into a vertical state from a horizontal state under the action of a pulling force of the rotary hydraulic cylinder 3, then the crawler-type power chassis is contracted towards the middle under the action of the hydraulic folding device 2, the width of the whole machine is changed, the width of the folded whole machine is ensured, and road transportation is facilitated.

As shown in fig. 4, the left header unit 4 and the right header unit 5 have the same structure and comprise a left conveying device 52 and a right conveying device 55, a seedling discharging port 6 is formed in a neutral area between the two conveying devices, and longitudinal extension lines of the seedling discharging port 6 are symmetrically arranged on two sides of the crawler-type power chassis 1 so as to ensure that rape is laid on the outer side of the crawler without being rolled.

As shown in fig. 4, the right header unit 5 includes a header frame 53, a grain pulling system 51 hinged on a front upper beam of the header frame 53, a pair of inner hinges 54 butt welded between the front upper beam and a rear upper beam of the header frame 53, a left conveying device 52 obliquely arranged outside (i.e., left side) the right header unit 5 and positioned below the grain pulling system 51, a right conveying device 55 obliquely arranged inside (i.e., right side) the right header unit 5 and positioned below the grain pulling system 51, a passive grain divider 57 vertically mounted on a truss in front of the inside of the header frame 53, a cross cutter 58 mounted on a bottom beam in front of the header frame 53 and positioned below the grain pulling system 51, and a pair of vertical cutters 59 vertically mounted on a truss in front of the outside of the header frame 53 and positioned in front of the cross cutter 58, and a pair of grain pulling wheel lifting hydraulic cylinders 56. One end of a reel lifting hydraulic cylinder 56 is hinged on the bottom inner side frame of the header frame 53, the other end of the reel lifting hydraulic cylinder 56 is hinged on the inner side frame of the reel system 51, and similarly, one end of the other reel lifting hydraulic cylinder 56 is hinged on the bottom outer side frame of the header frame 53, and the other end of the reel lifting hydraulic cylinder is hinged on the outer side frame of the reel system 51; the vertical cutter 59 is perpendicular to the mounting plane of the horizontal cutter 58, and is connected and transmitted through a set of ball pairs; the passive crop divider 57 is arranged parallel to the vertical cutter 59 on both sides of the header frame 53 and the passive crop divider 57 is located in front of the vertical cutter 59.

As shown in fig. 5, the transmission system of the right header unit 5 includes a first transmission shaft 513 horizontally disposed on a right rear lower truss of the header frame 53, a second transmission shaft 519 horizontally mounted on a right rear upper truss of the header frame 53, a third transmission shaft 524 mounted on the rear upper truss of the header frame 53 and positioned to the left of the second transmission shaft 519, a right commutator 520 obliquely disposed on the right rear truss of the header frame 53 (parallel to the mounting plane of the small conveyor rolls 51 and positioned above the first transmission shaft 513 and below the second transmission shaft 519), a left commutator 526 obliquely disposed on the left rear truss of the header frame 53 (parallel to the mounting plane of the large conveyor rolls 55 and positioned below the third transmission shaft 524), a first coupling 512 mounted on the rear lower beam of the header frame 53, a first sprocket 514 mounted on the right side of the first transmission shaft 519, a second sprocket mounted on the right side of the second transmission shaft 519, a small sprocket 516 mounted on the right side of the second transmission shaft 519 and a transition pulley 518 mounted between the right sprocket 516 and the second sprocket 516 through the transition pulley 518 and a third sprocket wheel 521, a fifth sprocket wheel mounted between the right sprocket wheel and the right sprocket wheel 518 and a third sprocket wheel 516 through the transition pulley 518 mounted on the right sprocket wheel and the right transmission shaft 516 through the first sprocket wheel 516 and the right sprocket wheel 518 and the transition pulley 518, the third sprocket 522 and the fourth sprocket 521 are driven by a chain, the fifth sprocket 525 and the sixth sprocket 527 are driven by a sprocket, and the output shafts of the right commutator 520 and the left commutator 526 are respectively connected to the driving shafts of the left conveying device 52 and the right conveying device 55 by a coupling. The hydraulic motor 511 is the power input to the cutting table and is driven by the tracked power chassis 1, the right and left diverters 520, 526 being mounted opposite, and turning opposite, parallel to the plane of mounting of the conveyor rolls 52, 55.

The left header unit 4 and the right header unit 5 are arranged in a mirror image mode, the passive crop divider 57 of the left header unit 4 is vertically arranged on a truss in front of the inner side (i.e. left side) of the header frame 53, and the vertical cutter 59 is vertically arranged on a truss in front of the outer side (i.e. right side) of the header frame 53. The other structures are the same and will not be described again.

As shown in fig. 6, the hydraulic folding apparatus 2 includes a hitch frame 21, a pair of guide rails 27 disposed on a truss in front of the hitch frame 21, sliders 23 disposed on both sides of the pair of guide rails 27, a header hitch frame 24 mounted on each slider 23, an outer hinge 25 mounted on each header hitch frame 24, and a pair of retracting hydraulic cylinders 26, and the hitch frame 21 is fixed to the crawler-type power chassis 1 by a rotating shaft 22 at the rear of the hitch frame 21. A pair of outer hinges 25 on the right header hanging frame 24 are connected with an inner hinge 54 between the front upper beam and the rear upper beam of the header frame 53 of the right header unit 5 through pins; similarly, a pair of outer hinges 25 on the left header hanging frame 24 are connected with inner hinges in the middle of the front upper cross beam and the rear upper cross beam of the header frame of the left header unit through pins; meanwhile, an outer hinge at one end of the rotary hydraulic cylinder 3 at the right side is connected with an inner hinge 54 of a header frame 53 of the right header monomer 5 through a pin, and an inner hinge at the other end of the rotary hydraulic cylinder 3 is connected with an outer hinge 25 on the header hanging frame 24 at the right side through a pin; similarly, the outer hinge at one end of the left rotary hydraulic cylinder 3 is connected with the inner hinge of the header frame of the left header unit through a pin, and the inner hinge at the other end of the rotary hydraulic cylinder 3 is connected with the outer hinge 25 on the header hanging frame 24 at the left through a pin. The shell of the upper contraction hydraulic cylinder 26 is fixed on the hitching frame 21, and the telescopic rod of the contraction hydraulic cylinder 26 is hitched with the header hitching frame 24 on one side; similarly, the shell of the lower contraction hydraulic cylinder 26 is fixed on the hanging rack 21, and the telescopic rod of the contraction hydraulic cylinder 26 is hung on the cutting table hanging rack 24 on the other side; the two header hanging frames 25 can be driven to oppositely shrink or reversely extend under the action of the two shrinkage hydraulic cylinders 26.

As shown in fig. 3, when the header is folded, the left header unit 4 and the right header unit 5 rotate 90 ° around the hinge point on the hydraulic folding device 2 under the action of the pull force of the rotary hydraulic cylinder 3, and the header unit is changed from an unfolded state to a vertical state, and then contracts toward the middle under the action of a pair of contraction hydraulic cylinders 26 on the hydraulic folding device 2, so as to ensure that the transverse width of the machine meets the transportation requirement. When the header is unfolded, the working processes are opposite, the left header monomer and the right header monomer are pushed to the two ends of the hydraulic folding device by the contraction hydraulic cylinder 26, and then the left header monomer and the right header monomer rotate to the horizontal position from the vertical position along with the extension of the rotary hydraulic cylinder 3, so that the double-channel header is formed.

As shown in fig. 7, the right conveying device 55 includes a driving shaft 551, a pair of side plates 552, an anti-deviation conveying belt 554, spring teeth 555, and a driven shaft 556. The driving shaft 551 both ends are installed and are taken seat bearing 558, and the tensioning bearing 553 is installed to driven shaft 556 both ends, and tensioning bearing 553 is used for adjusting the elasticity of anti-deviation conveyer belt 554, and tensioning bearing 553 and take seat bearing 558 are fixed in the both sides of both sides board 552 through the bolt respectively. A plurality of rubber sleeves 557 are uniformly sleeved on the driving shaft 551 and the driven shaft 556 along the axial direction, the rubber sleeves 557 on the driving shaft 551 and the rubber sleeves 557 on the driven shaft 556 are arranged in a one-to-one correspondence manner, and the rubber sleeves 557 are fixedly fixed with the shaft through bolts in the radial direction; the anti-deviation conveying belt 554 is wrapped on the rubber sleeve 557, guide strips are arranged at two ends of the inner surface of the anti-deviation conveying belt 554, and the guide strips are clamped on the side walls of the rubber sleeves at the two ends to prevent the belt from deviating; the rubber sleeve is used for replacing the direct transmission of the conveying belt, the driving shaft and the driven shaft, so that the conveying capacity is improved, and the weight of the conveying roller can be reduced. The spring teeth 555 are arranged on the outer side surface of the anti-deviation conveying belt 554 in an array mode through bolts, can move along with the anti-deviation conveying belt, continuously stir rapes poured on the conveying device, and conveying efficiency is improved.

As shown in fig. 8, the spring tooth 555 is made of nylon and comprises a bottom mounting seat 555a and two flexible racks 555b extending from the bottom mounting seat 555a, the flexible racks 555b and the plane of the anti-deviation conveying belt 554 form an obtuse angle, two through holes are formed in the bottom mounting seat 555a, and the two through holes are fixed on the anti-deviation conveying belt 554 through bolts. Each row of elastic teeth 555 is positioned at a gap position between two adjacent rubber sleeves 557, so that the interference between the bolts on the elastic teeth 555 and the rubber sleeves 557 can be avoided when the anti-deviation conveying belt moves. The common planting row spacing of rape is 300mm, and the spring tooth length is 130mm, and the final determination of two adjacent spring teeth is 200mm in transverse installation distance, 185mm in longitudinal installation distance, 6 transverse installation, 5 longitudinal installation, matrix distribution and 30 total in number is not caused to increase the spring tooth capacity. For the left conveyor 52, the arrangement of the tines is the same, but due to the reduced effective width of the anti-run-out conveyor, only 4 tines are mounted in the lateral direction, and still 5 tines are mounted longitudinally, for a total of 20.

In this embodiment, the widths of the left header monomer 4 and the right header monomer 5 are both 2m, and the installation distance between the two is 100mm, so as to prevent interference during folding. The width of the right conveying device 55 of the right cutting table unit 5 is 700mm, and the width of the left conveying device 52 is 400mm, so that the rape is laid on the two sides of the crawler-type power chassis 1 and cannot be rolled. The installation inclination angles of the left conveying device 52 and the right conveying device 55 are 30-45 degrees, the rotation directions of the left conveying device and the right conveying device are opposite, the rape is ensured to move towards the middle seedling discharging opening, the width of the seedling discharging opening is 700mm, and the longitudinal height of the seedling discharging opening is 650mm.

Working principle: when the rape cutting and sunning operation is performed by using the rape cutting and sunning machine, the whole machine is in an unfolding state, so that a double-channel cutting table is formed. The engine drives the duplex plunger pump to operate so as to drive the hydraulic motors which are transmitted to the left cutting table unit 4 and the right cutting table unit 5, and then the hydraulic motors are distributed to the cross cutting knife 58, the vertical cutting knife 59, the reel 51, the left conveying device 52 and the right conveying device 55 step by step through the transmission parts so as to drive all working parts to operate. Along with the advancing of the unit, the driven divider 57 on the inner side of the cutting table divides rape into rows firstly, the rape on the outer side of the cutting table shears the branches which are wound together under the action of the vertical cutter 19, then under the guidance and support of the reel 51, the rape stalks are gradually cut off, the rape in the middle is poured into the seedling discharging port 6, the rape on the two sides is poured onto the conveying belts of the left conveying device 52 and the right conveying device 55 in a proper direction, and the spring teeth 47 continuously dials the rape on the conveying belt to the seedling discharging port 6, so that the procedures of lapping the rape head and tail, double-side strip laying and airing the rape stubble are realized. When the machine tool is transported, the left cutting table monomer 4 and the right cutting table monomer 5 are turned inwards by 90 degrees to finish folding under the action of the tension of the rotary hydraulic cylinder 3, and then inwards slide by 700mm under the action of the tension of the pair of shrinkage hydraulic cylinders 26 to meet the folding width requirement, so that the functions of wide-width operation and narrow-width transportation are realized.

The wide foldable rape cutter-rower based on the crawler-type power chassis adopts a mode of combining the wide cutting table and the crawler-type power chassis, has good field trafficability and enough horsepower, and improves the utilization rate of the crawler-type chassis; the left header and the right header are connected with the power chassis through the hydraulic folding device, folding and shrinkage of the header are realized under the action of the hydraulic cylinder and the guide rail, the breadth and the occupied space of the whole machine are reduced, the road transportation is facilitated, and the transportation cost is reduced; the designed double-channel header increases the operation width, improves the harvesting efficiency, can ensure the quality of middle laying and avoids the trouble of manual channel opening; the cutting table is driven by hydraulic pressure, other mechanical transmission is adopted, the transmission ratio is stable, and the structure is reliable.

The above embodiments are only for illustrating the technical solution of the present invention, but not for limiting, and modifications and equivalent substitutions are possible without departing from the spirit and scope of the technical solution of the present invention, and are intended to be covered in the scope of the claims of the present invention.

Claims (1)

1. A wide-width foldable rape cutter-rower based on a crawler-type power chassis is characterized in that: comprises a crawler-type power chassis (1), a hydraulic folding device (2), a rotary hydraulic cylinder (3), a left cutting table monomer (4) and a right cutting table monomer (5); the left header monomer (4) and the right header monomer (5) are symmetrically hinged at two ends of the hydraulic folding device (2); the left cutting table monomer (4) and the right cutting table monomer (5) have the same structure and comprise a left conveying device (52) and a right conveying device (55), a seedling discharging opening (6) is formed in a neutral position area between the two conveying devices, and longitudinal extension lines of the seedling discharging opening (6) are symmetrically arranged on two sides of the crawler-type power chassis (1);

the right cutting table unit (5) further comprises a cutting table frame (53), a grain pulling system (51) hinged on a front upper beam of the cutting table frame (53), a pair of inner hinges (54) welded between the front upper beam and a rear upper beam of the cutting table frame (53), a driven grain divider (57) vertically arranged on a truss in front of the inner side of the cutting table frame (53), a cross cutting knife (58) arranged on a beam at the bottom in front of the cutting table frame (53) and positioned below the grain pulling system (51), a vertical cutting knife (59) vertically arranged on a truss in front of the outer side of the cutting table frame (53) and positioned in front of the cross cutting knife (58), and a pair of grain pulling wheel lifting hydraulic cylinders (56), wherein the left conveying device (52) is obliquely arranged on the outer side of the right cutting table unit (5) and positioned below the grain pulling system (51), and the right conveying device (55) is obliquely arranged on the inner side of the right cutting table unit (5) and positioned below the grain pulling system (51); one end of a reel lifting hydraulic cylinder (56) is hinged on the bottom inner side frame of the header frame (53), the other end of the reel lifting hydraulic cylinder is hinged on the inner side frame of the reel system (51), and one end of the other reel lifting hydraulic cylinder (56) is hinged on the bottom outer side frame of the header frame (53), and the other end of the reel lifting hydraulic cylinder is hinged on the outer side frame of the reel system (51); the vertical cutter (59) is perpendicular to the mounting plane of the horizontal cutter (58), and the vertical cutter and the horizontal cutter are connected and transmitted through a set of ball pairs; the driven crop divider (57) and the vertical cutters (59) are arranged on two sides of the header frame (53) in parallel, and the driven crop divider (57) is positioned in front of the vertical cutters (59);

the hydraulic folding device (2) comprises a hanging rack (21), a pair of guide rails (27) arranged on a truss in front of the hanging rack (21), sliding blocks (23) arranged on two sides of the pair of guide rails (27), a header hanging rack (24) arranged on each sliding block (23), an outer hinge (25) arranged on each header hanging rack (24) and a pair of contraction hydraulic cylinders (26), wherein the hanging rack (21) is fixed on the crawler-type power chassis (1) through a rotating shaft (22) at the rear part of the hanging rack (21); a pair of outer hinges (25) on the right header hanging frame (24) are connected with an inner hinge (54) between a front upper beam and a rear upper beam of a header frame (53) of a right header unit (5) through pins; a pair of outer hinges (25) on the left header hanging frame (24) are connected with an inner hinge in the middle of the front upper cross beam and the rear upper cross beam of the header frame of the left header unit (4) through pins; an outer hinge at one end of the rotary hydraulic cylinder (3) at the right side is connected with an inner hinge (54) of a header frame (53) of the right header monomer (5) through a pin, and an inner hinge at the other end of the rotary hydraulic cylinder (3) is connected with an outer hinge (25) on a header hanging frame (24) at the right side through a pin; an outer hinge at one end of the left rotary hydraulic cylinder (3) is connected with an inner hinge of a header frame of the left header unit through a pin, and an inner hinge at the other end of the rotary hydraulic cylinder (3) is connected with an outer hinge (25) on a header hanging frame (24) at the left through a pin; the shell of the contraction hydraulic cylinder (26) positioned above is fixed on the hanging frame (21), and the telescopic rod of the contraction hydraulic cylinder (26) is connected with the cutting table hanging frame (24) on one side; the shell of the contraction hydraulic cylinder (26) positioned below is fixed on the hanging frame (21), and the telescopic rod of the contraction hydraulic cylinder (26) is hung on the cutting table hanging frame (24) at the other side;

the transmission system of the right cutting table single body (5) comprises a first transmission shaft (513) horizontally arranged on a truss at the right rear lower part of the cutting table frame (53), a second transmission shaft (519) horizontally arranged on a truss at the right rear upper part of the cutting table frame (53), a third transmission shaft (524) arranged on the truss at the rear upper part of the cutting table frame (53) and positioned at the left side of the second transmission shaft (519), a right reverser (520) obliquely arranged on the truss at the right rear part of the cutting table frame (53), a left reverser (526) obliquely arranged on the truss at the left rear part of the cutting table frame (53), a hydraulic motor (511) arranged on a beam at the rear lower part of the cutting table frame (53), a first coupling (512) connected between the hydraulic motor (511) and the first transmission shaft (513), a first sprocket (514) arranged at the right side of the first transmission shaft (513), a second sprocket (515) arranged at the right side of the second transmission shaft (519), a small sprocket (516) obliquely arranged at the right end of the second transmission shaft (519) and positioned at the right side of the second transmission shaft (519), a small sprocket (522) obliquely arranged at the right side of the second transmission shaft (519), a small sprocket (522) installed at the right side of the second sprocket (519), a small sprocket (522) installed at the right sprocket (518) installed at the right side of the transmission shaft (519), a large sprocket (518) installed at the right sprocket (518) and a large sprocket (518) installed at the right sprocket transmission system and at the right sprocket (518) side of the large sprocket transmission shaft The device comprises a second coupler (523) connected between a second transmission shaft (519) and a third transmission shaft (524), a fifth sprocket (525) arranged at the left end of the third transmission shaft (524), a sixth sprocket (527) arranged at the right side input shaft of a left commutator (526), wherein a first sprocket (514) and the second sprocket (515) are driven by a chain, a small belt pulley (516) and a transition belt pulley (517) are driven by a belt, the transition belt pulley (517) and a large belt pulley (518) are driven by a belt, the third sprocket (522) and the fourth sprocket (521) are driven by a chain, the fifth sprocket (525) and the sixth sprocket (527) are driven by sprockets, and the output shafts of the right commutator (520) and the left commutator (526) are respectively connected on the driving shafts of a left conveying device (52) and a right conveying device (55) by the coupler;

the right conveying device (55) comprises a driving shaft (551), a pair of side plates (552), an anti-deviation conveying belt (554), spring teeth (555) and a driven shaft (556); the two ends of the driving shaft (551) are provided with seat bearings (558), the two ends of the driven shaft (556) are provided with tensioning bearings (553), the tensioning bearings (553) are used for adjusting the tightness of the anti-deviation conveyor belt (554), and the tensioning bearings (553) and the seat bearings (558) are respectively fixed on the two sides of the two side plates (552) through bolts; a plurality of rubber sleeves (557) are uniformly sleeved on the driving shaft (551) and the driven shaft (556) along the axial direction, the rubber sleeves on the driving shaft (551) and the rubber sleeves (557) on the driven shaft (556) are arranged in a one-to-one correspondence manner, and the rubber sleeves (557) are fixed with the shaft through bolts in the radial direction; the anti-deviation conveying belt (554) is wrapped on the rubber sleeve (557); the elastic teeth (555) are arranged on the outer side surface of the anti-deviation conveyor belt (554) in an array manner through bolts;

the elastic tooth (555) comprises a bottom mounting seat (555 a) and two flexible racks (555 b) extending from the bottom mounting seat (555 a), the intersection formed by the flexible racks (555 b) and the plane of the anti-deviation conveying belt (554) is an obtuse angle, two through holes are formed in the bottom mounting seat (555 a), and the elastic tooth is fixed on the anti-deviation conveying belt (554) through bolts; each row of spring teeth (555) is positioned at a gap position between two adjacent rubber sleeves (557);

the installation inclination angles of the left conveying device (52) and the right conveying device (55) are 30-45 degrees, and the rotation directions of the left conveying device and the right conveying device are opposite; guide strips are arranged at two ends of the inner surface of the anti-deviation conveying belt (554), and are clamped on the side walls of the rubber sleeves (557) positioned at the two ends.