CN202617704U - Auxiliary cutting device for combine harvester and combine harvester with auxiliary cutting device - Google Patents

Abstract

The utility model discloses an auxiliary cutting device for a combine harvester and a combine harvester with the auxiliary cutting device. The utility model aims to solve the problem of non-uniform reaping caused by halfway reaping of a lower cutting knife, reduce the collision between the lower cutting knife and a ridge, and improve harvesting performance. The lower cutting knife, which is supported by a plurality of elevator frames and acts on upright crops, is arranged at a lower position relative to a main cutting device for reaping the upright crops and can rise and fall freely relative to a walking machine body. Each elevator frame positioned in the lateral direction of the walking machine body and near one side of a driver seat consists of an extending butt end support part which is positioned on one side of the driver seat but diverts to a lateral outside and faces the front of the machine body, and a front end support part which extends from the front end of the butt end support part and deviates even more to a middle position of the walking machine body in the lateral direction relative to the butt end support part arranged in front of one side walking device. The position of the butt end support part on one side of the driver seat coincides with the lateral outside of one side walking device. The lower cutting knife is driven by the walking machine body.

Description

The secondary shearing device of combine and the combine of this device is installed

The application is to be that March 26, application number in 2010 are 201120028367.6 (japanese priority number is: JP2010-072304), denomination of invention is: the dividing an application of " combine " applying date.

Technical field

the utility model relates to the secondary shearing device of a kind of combine; Be positioned at the main shearing device below of the upright grain stalk of harvesting on the harvesting conveyer that is arranged on grain header, the utility model also relates to a kind of combine that this secondary shearing device is installed.

Background technology

The purpose that are provided with said main shearing device and said secondary shearing device is to be shipped to sheller unit for only that the fringe of upright stalk stalk is distolateral knot grain portion; So cut off knot grain portion through main shearing device; Simultaneously; Because the stem stalk portion that will not tie below the grain portion is shipped to sheller unit, so the cut-out of stem end parts is sprinkling upon in the piece of field through secondary shearing device.

are in existing technology; Supported by traveling machine body on the reaping part that can go up and down, main shearing device and secondary shearing device are installed, and (Japan Patent for example: the spy opens 2004-97079 communique (paragraph numbering (0021), Fig. 2-Fig. 3)).

are according to the structure of above-mentioned prior art; Because main shearing device and secondary shearing device are to be installed in respectively on the reaping part; In order to regulate the cut-out height of main shearing device; Move up and down the height of reaping part with respect to traveling machine body, secondary shearing device can move up and down along with moving up and down of reaping part.The result is, no matter how much stalk length of upright stalk is, can cut off knot grain portion through main shearing device; But secondary shearing device keeps moving up and down with main shearing device certain spacing, so no matter how much stalk length of upright stalk is, secondary shearing device is to cut off in the bottom of cut-out height one determining deviation of the main shearing device of distance; So remain in the stubble that cuts in the piece of field; If the words of stock are just long, the words of quarter butt are just shorter, and cutting height is uneven.

are in order to overcome above-mentioned shortcoming; Device for installing and adjusting is adjusted the height of secondary shearing device with respect to reaping part; Take the control device of controlled adjuster; According to the detecting sensor and detect the detect information of secondary earnestly disconnected device of the terrain clearance that detects reaping part, the cut-out of secondary shearing device is highly kept certain height with respect to the sensor of the relative altitude of reaping part etc.But, if such structure, because the control of the height of secondary shearing device is to carry out through the relative position of control with main shearing device, so, might be difficult to cut off the stem stalk at unusual ground proximity according to the concavo-convex situation on the piece surface, field of reality.That is to say, also might occur cutting the uneven situation of stubble in this case.

that is to say, when adopting prior art that the farmland is gathered in, the uneven problem of stubble might occur cutting, thereby cause farmland harvesting operation insufficient.

Summary of the invention

The purpose of the utility model provides the secondary shearing device of a kind of combine and the combine of this device is installed; Through improving support structure corresponding to secondary shearing device; The uneven problem of stubble is cut in elimination; Further improve the shape of elevator platform, prevent that secondary shearing device from contacting with ridge, improve the harvesting performance.

The technical scheme of the utility model:

The secondary shearing device of a kind of combine; Be positioned at the main shearing device below of the upright grain stalk of harvesting on the harvesting conveyer that is arranged on grain header; Cut upright grain stalk; Said secondary shearing device comprises a plurality of tubular axles and the extended many elevator platforms from the axial the place ahead of said tubular; In the said many elevator platforms; One side elevator platform is by the butt side frame portion that extends out from the axial the place ahead of said tubular; And more constitute near the front framework portion of body lateral mid-point from the extended butt side frame portion that compares of said butt side frame portion, said front framework portion is by the horizontal framework portion that extends towards body lateral center direction from said butt side frame portion front end, and the rack section of the fore-and-aft direction that extends towards body the place ahead from horizontal rack section front end constitutes.

In said several elevator platforms, be positioned at the linearity rack section of the central elevator frame of center side, and become the extended bending rack section of bending to constitute down from linearity rack section front end by the shape extension that is in line.

are further, and said central elevator frame also comprises from the forwards extended rack section forward of said bending rack section.The central elevator frame carries out Bending Processing by single frame material and forms.

In said several elevator platforms, the opposite side elevator platform of traveling machine body horizontal direction is made up of single frame material.

make the production process of opposite side elevator platform uncomplicated through the opposite side elevator platform is made up of the single-rack portion of extending that is in line towards oblique below, also can reduce cost of manufacture.

said side elevator platform sees from top to bottom and bends to crank-like that this structure can be avoided secondary shearing device and ridge collision.

The combine that this secondary shearing device is installed of the utility model; Comprise from the gearbox extended axle box of both lateral sides direction to the left and right; On the traveling machine body that is provided with the running gear that is being supported by said axle box; But be supported with the harvesting conveyer of free lifting; Main shearing device and conveyance that said harvesting conveyer has a fringe end of the upright paddy stalk of harvesting are gathered in the said fringe end that gets off and the connecting gear of grain portion; Be provided with the secondary shearing device that can be supported on the said upright paddy stalk of cutting on the said traveling machine body in the position that is lower than said main shearing device free lifting, said secondary shearing device by, follow away that the body lateral separation arranges; The several elevator platforms that forwards extend on the said traveling machine body; But be supported on the said traveling machine body free lifting, in said several elevator platforms, the central elevator frame in the horizontal central authorities of traveling machine body; At said carrying device with between the axle box below the carrying device, comprise the bending rack section that linearity rack section that shape linearly extends and front side from the leading section of linearity rack section towards said axle box become bending to extend out downwards.

central elevator frame has the rack section forward that forwards extends from the lower end of said bending rack section.Described central elevator frame is formed through Bending Processing by a frame material.

said secondary shearing device is by the several elevator platforms that forwards extend from said traveling machine body that follow away that the body lateral separation arranges; But be supported on the said traveling machine body free lifting; In said several elevator platform; Be positioned at the elevator platform near Drive Section one side of traveling machine body horizontal direction; Comprise butt side frame portion and front framework portion, wherein butt side frame portion is extended to body the place ahead in the lateral outer side of the running gear of a side that is positioned at the horizontal nearly Drive Section of traveling machine body, and the front framework portion is extended from the front end of butt side frame portion; In the place ahead of the running gear of a said side, the distolateral framework portion of beguine is more near the body lateral center.

grain header is in the incipient stage of carrying out field piece operation; At first with the end of Drive Section one side of traveling machine body near ridge; Field piece peripheral part is gathered in operation; In this case, if only the knot grain portion of the fringe end of upright stalk stalk is cut off, spread after through secondary shearing device the stem end parts being cut off then and arrive the field through main shearing device; Because secondary shearing device is positioned at the below of reaping part; So on Drive Section, driving the operating personnel of machine sometimes can not be through the job state of the secondary shearing device of Visual Confirmation, if secondary shearing device protrudes to lateral outer side from the lateral outer side end of the running gear of Drive Section side, secondary shearing device just might contact with the field piece and cause breakage.

therefore, the end of the Drive Section side of secondary shearing device sees that from the traveling machine body fore-and-aft direction lateral outer side end with the running gear of a said side is at same position, perhaps a little near the traveling machine body lateral center.

also may be thought of as the running gear of avoiding with a side and have interfered; With a side elevator platform; Be arranged in its running gear than being partial to the horizontal central authorities of body a little, to body the place ahead structure that shape stretches out that is in line, but if such structure; The end of the Drive Section side of secondary shearing device will become monolateral support shape, can not get sufficient support strength.

said front framework portion comprises that horizontal rack section and front and back are to rack section; Wherein laterally rack section is from the front side of the running gear of the front end of said butt side frame portion, a said side towards the horizontal expansion of body lateral center side, and front and back are that front end from horizontal rack section extends to body the place ahead to rack section.

conduct is for the further improvement of front and back to rack section, and extend to the body front lower place to rack section said front and back.

Change through the shape to a side elevator platform like this , both can avoid the running gear of a side elevator platform and Drive Section side to interfere, and also can avoid secondary shearing device to contact with ridge and cause breakage.

In said several elevator platforms, the opposite side elevator platform in an opposite side of Drive Section, there is no need to be arranged to crooked shape as a side elevator platform.Thereby be arranged to be by to oblique below linearly the extended single-rack of shape portion constitute, pass on the transmission mechanism of driving force to be arranged on the said opposite side elevator platform to said secondary shearing device.

said secondary shearing device is to be made up of the reciprocating type reaping apparatus that is provided with the moving knife that moves back and forth along the traveling machine body horizontal direction; Said secondary shearing device is in the horizontal almost across whole traveling machine body; And; With the said moving knife one that moves back and forth, on the said secondary shearing device lateral transfer parts are installed, will be transmitted to the body horizontal direction by the crop of said secondary shearing device harvesting.

move up and down in order to make secondary shearing device can follow the harvesting conveyer; Drive the rising mechanism that said secondary shearing device moves upward; Be arranged on the said axletree casing, act on the linearity holder part on the said middle elevator platform.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described

Fig. 1 is the unitary side view of combine.

Fig. 2 is the overall plan view of combine.

The plane of Fig. 3 vice shearing device, link gear, Drive Section, connecting gear.

The plane of Fig. 4 vice shearing device, link gear, connecting gear.

Fig. 5 representes the left side view of the driving structure of sinistral hoist frame and secondary shearing device.

Fig. 6 representes the center side elevator platform, and the left side view that is arranged on the growth trend means between center side elevator platform and the traveling machine body.

Fig. 7 representes the right side view of dextral hoist frame.

Fig. 8 representes the plane of 3 elevator platforms and secondary shearing device.

The plane of the part of Fig. 9 vice shearing device.

Figure 10 is the left side view of vertical truncation surface of secondary shearing device.

Figure 11 representes the oblique view of sledge.

Figure 12 is the cross-sectional plan views of elevator platform with cover plate.

Figure 13 is the vertical truncation surface front view corresponding to the eccentric drive unit of secondary shearing device.

Figure 14 representes the portions cut end view with respect to the eccentric drive unit of secondary shearing device.

Figure 15 representes the left side view of link mechanism.

Figure 16 representes the front view of link mechanism.

Figure 17 representes the profile of the contact status of the guide member and the axis of guide.

Figure 18 is the Action Specification figure of link mechanism.

Figure 19 is the unitary side view of the combine of link mechanism when contact status.

Figure 20 is the end view of Drive Section.

plane of field piece when Figure 21 gathers in operation for grain header.

Wherein: 1 running gear; 2 traveling machine body; 3 harvesting conveyers; 6 Drive Sections; 9 main shearing devices; 13A, 13B, 13C elevator platform; 13B one side elevator platform; 13d butt side frame portion; 13e front framework portion; The horizontal rack section of 13e1; The 13e2 front and back are to rack section; 13C opposite side elevator platform; 14 secondary shearing devices; The E transmission mechanism

Embodiment:

The whole side that has shown combine among Fig. 1; This combine is to serve as the full feeding type grain header of harvesting object with rice and wheat; Traveling machine body 2 is provided with the front in the traveling machine body of walking through the driving of pair of right and left cterpillar drive 12; Be connected with will cut the harvesting conveyer 3 that rearward transmits behind the harvesting object stalk and harvesting conveyer 3 around about to can swing up and down in the 1st axle center X1 week; The crop that the harvesting that sends is got off to harvesting conveyer 3 carries out threshing and handles; The sheller unit 4 of simultaneously handled thing that in this threshing is handled, obtains being cleaned processing and the grain case 5 that stores the grain that sends from sheller unit 4 etc., the place ahead of the grain case 5 on traveling machine body 2 is provided with Drive Section 6.In addition, the awning 72 that hides the top of Drive Section is arranged to can be at the active state above the Drive Section 6 with fall back between the receiving state at rear and switch.

are like Fig. 1 and shown in Figure 2; Harvesting conveyer 3 is along with the walking of traveling machine body; The nearside divider 7 that is assemblied in its anterior right ends will gather in object paddy stalk and non-harvesting object the paddy stalk separately; Be assemblied in harvesting conveyer 3 front upper straw shift wheel 8 will through about the harvesting object paddy stalk that separates of nearside divider take off toward the rear; The main shearing device 9 that is assemblied in the bottom of harvesting conveyer 3 will gather in object paddy stalk and cut off at ad-hoc location; Harvesting object paddy stalk after the auger 10 that is assemblied in the rear of main shearing device 9 cuts off main shearing device 9 draws the ad-hoc location of left and right directions in; Rearward see off at ad-hoc location simultaneously, the paddy stalk that the connecting gear 11 of conveyer will send from auger 10 from ad-hoc location transmits to the front upper part of sheller unit 4, and can swing up and down along the 1st axle center X1 week of left and right directions through the effect that is erected at the fluid pressure type oil cylinder 12 between connecting gear 11 and the traveling machine body 2; Can carry out harvesting height and regulate through swinging up and down then, change main shearing device 9 relatively with the height of harvesting object paddy stalk.

then; Below harvesting conveyer 3; The secondary shearing device 14 that is made up of reciprocating type reaping apparatus that acts on upright paddy stalk is being installed than main shearing device 9 low positions, and secondary shearing device 14 is to be supported by three elevator platform 13A, 13B, the 13C that can be assemblied on the traveling machine body 2 with freely swinging.

next describe the support structure of secondary shearing device 14.

like Fig. 2～shown in Figure 4, about on the front end of traveling machine body 2, setting up to material be the horizontal frame 16 of square steel.Laterally the centre position of frame 16 is provided with gearbox 24; Be divided into left side framework portion 16A that is positioned at gearbox 24 left sides and the right side framework portion 16B that is positioned at gearbox 24 the right, near the right-hand member side with right side framework portion 16B the two ends of left side framework portion 16A is equipped with bearing 17 in totally three places.

are like Fig. 6 and shown in Figure 7; Bearing portion 17 is by being installed in the last 17A of foot of left and right sides framework portion 16A, 16B and constituting with shaft sleeve part 17B that the 17A of foot is integrally formed, and shaft sleeve part 17B goes up and is mounted with the tubular axle 18 that can freely swing through needle bearing.

are provided with tabular bracing frame 16a corresponding to the installation position of the bearing portion 17 on the horizontal frame 16, and the 17A of foot of this bracing frame 16a bearing portion 17 is fixing through bolt 15, and bearing portion 17 is corresponding to laterally frame 16 can disassembled and assembled freely.

Tubular axle 18 in three bearing portions 17 is horizontal along the 2nd axle center X2, protrudes in the shaft sleeve part 17B of bearing portion 17, and ledge is connected fixing respectively with elevator platform 13A, 13B, 13C.Three places at left and right directions are arranged to extend to body the place ahead central elevator frame 13A, dextral hoist frame 13B, the rotary structure of sinistral hoist frame 13C by central elevator frame 13A, dextral hoist frame 13B, the sinistral hoist frame 13C that bearing portion 17 supports.

The structure that are faced the central elevator frame 13A of the substantial middle position that is positioned at the traveling machine body banner direction among three elevator platform 13A, 13B, the 13C down describes.

central elevator frame 13A and shaft sleeve part 17B link into an integrated entity; Between harvesting conveyer 3 and the axle box below it 25, comprise from be in line toward the oblique below linearity rack section 13a that extends of shaft sleeve part 17B becoming the extended bending rack section of bending 13b downwards in the place ahead of axle box 25 with leading section from linearity rack section 13a.

that is to say; As shown in Figure 6; Central elevator frame 13A is; The linearity rack section 13a that the shape that is in line that will be between the axle box 25 below connecting gear 11 and the connecting gear 11 extends becomes the extended bending rack section of bending 13b downwards with leading section from linearity rack section 13a in the place ahead of axle box 25, with a frame material through Bending Processing formation.In addition, central elevator frame 13A comprises the lower end forwards extended rack section forward 13c from bending rack section 13b.

supplementary notes, said linearity rack section 13a and said bending rack section 13b are formed through Bending Processing by a frame material, and linearity rack section 13a and bending rack section 13b are linking together under the case of bending smoothly; Rather than warpage; Such as, secondary shearing device 14 contacts with ridge, even the effect of the power at oriented body rear; Because internal stress can not focus on the part, so just be not easy damage.

above the linearity rack section 13a, are provided with frames 49 in addition, contact with the following of carrying case 11A of connecting gear 11 through frames 49, prevent that the base plate of secondary shearing device 14 and auger 10 from contacting.

A side elevator platform that is positioned at the horizontal right side of traveling machine body among three elevator platform 13A, 13B, the 13C is dextral hoist frame 13B; A skidding walking apparatus that is positioned at the Drive Section side of traveling machine body banner direction is the lateral outer side of right side running gear 1; Comprise the extended butt side frame 13d of portion towards body the place ahead, with in the place ahead of the running gear 1 on right side from the extended front framework portion 13e that compares with the butt side frame 13d of portion more near body banner direction central part of the front end of the butt side frame 13d of portion.

then; Said front framework portion 13e; By constituting to rack section 13e2 towards the horizontal rack section 13e1 of the middle part of body banner direction horizontal expansion with from the front and back that the front end of horizontal rack section 13e1 extends to the body front lower place from the front end (the place ahead of right side running gear 1) of the said butt side frame 13d of portion.

supplementary notes; Like Fig. 3, Fig. 7 and shown in Figure 8; Dextral hoist frame 13B; The outside, right side of right side running gear 1 is by the butt side frame 13d of portion that extends to body the place ahead and the horizontal rack section 13e1 that extends to the middle part of body banner direction from the front side outside of the front end right side running gear 1 of butt side frame part 13d, constitute to framework portion 13e2 from the front and back that the front end of horizontal rack section 13e1 extends to body the place ahead.

promptly; Dextral hoist frame 13B bends to crank-like from overlooking; Through such bending; Look up from the front and back of traveling machine body 2, the position of the right-hand end of the traveling machine body banner direction of secondary shearing device 14 and the right-hand end of right side running gear 1 is roughly at same position, and secondary shearing device is supported corresponding to traveling machine body 2.Through such structure, such as, shown in Figure 21, the end of the Drive Section side of traveling machine body 2 and ridge near state under when carrying out the harvesting operation of field piece peripheral part, can avoid secondary shearing device 14 to contact at an easy rate with the ground of ridge.

specifically; Like Fig. 2 and shown in Figure 3; The right-hand end of the traveling machine body banner direction of secondary shearing device 14; See roughly right-hand end position with right side running gear 1 roughly at same position from the fore-and-aft direction of traveling machine body 2, than the right-hand end position of right side running gear 1 a little to the center side of traveling machine body banner direction near the position.Then, the outside of being partial to the body banner direction is a little compared with the right-hand end position of right side running gear 1 in the position of the nearside divider 7 on right side.Through such structure, can avoid contacting with the ground of ridge with secondary shearing device 14.

The left end of the traveling machine body banner direction of secondary shearing device 14 is compared with the left end position of left row walking apparatus 1 and to be in the position of more being partial to the body banner direction outside.Through such structure, the paddy stalk that can avoid not cut off by secondary shearing device 14 is trampled by the running gear 1 in left side.

in addition, a side elevator platform that is positioned at the left side of traveling machine body banner direction among three elevator platform 13A, 13B, the 13C is sinistral hoist frame 13C, is to be made up of the extended single framework portion of shape that is in line to oblique below.

are provided with the lifting apparatus A that secondary shearing device is upwards lifted then, act on the linearity rack section 13a on the central elevator frame 13A.

are as shown in Figure 6; Lifting apparatus A is by compression spring 19; Carrying bolt axle 20 with the axial location that is positioned at compression spring 19; The carriage 21 that is spirally connected with lower end with carrying bolt axle 20, and the 22A of support disk up and down, the 22B that catch the upper and lower side of compression spring 19 constitute.

in addition; Support down the frames 23 of the beam steel shape of support disk 22B and from the front end frame 2A that follows away body 2 above-below direction settings, forwards stretch out, the leading section of frames 23 by from gearbox 24 to the left and right the extended axle box 25 of drive sprocket 1A of cterpillar drive 1 support.

Be fixed with down support disk 22B on frames 23, outside the shaft core position of support disk 22B is fixed with down, be enclosed within the carriage 21 of the lower end of carrying bolt axle 20 embeddedly.Extended upward towards central elevator frame 13A by the carrying bolt axle 20 of support disk 22B support down through carriage 21, support disk 22A is installed at the upper end position that upwards stretches out.

The fixing metal spare 26 of disc shape is installed below middle elevator platform 13A, and bolt 27 is regulated in assembling on the fixing metal spare 26.The lower end bolt head 27A that regulates bolt 27 docks with carrying bolt axle 20 upper end bolt head 20A, and central elevator frame 13A assembles under the state that said compression spring 19 is pushed to.Upper and lower at fixing metal spare 26 adjusts upward the advance and retreat of regulating bolt 27, can be adjusted to last disk 22A and dock, and also can regulate the state that pushes away on the compression spring 19.

during from 3 bearings 17 of horizontal frame 16 dismountings, three elevator platform 13A, 13B, 13C and comprise that the integral body of secondary shearing device 14 can also can install with bearing 17 dismountings once more.

The eccentric drive assembly of driving auxiliary shearing device 14 supports stationary knife driving shaft 44 by the bearing that is positioned at the left side 17, bearing block 46, and wobble drive arm 47 is installed on the sinistral hoist frame 13C.

The structure of secondary shearing device 14 next, is explained in .Like Fig. 5～shown in Figure 10; Secondary shearing device 14 is by across at body in a lateral direction, is fixed as the L shaped base station 29 in showing each other with the frame 15 that is connected of elongation; Be installed in the stationary knife 3 on the base station 29; The moving knife 31 that stationary knife 30 supports drives the knife bar 32 of moving knife 31, and fixedly the knife bracket 33 of moving knife 31 constitutes.

cutter backplate 48 has on the face down that is enclosed within connection frame 15 backward, is easy to be fixed on shearing device 14 and gathers in the structure at the concavo-convex place of faces.48 designs of cutter backplate are positioned at the below of each elevator platform 13A, 13B, 13C at 3 places that connect frame 15 transverse directions.

as and shown in Figure 10; Cane lateral transfer parts 34 are installed on the moving knife 31 of said secondary shearing device 14; Said cane lateral transfer parts 34 can pass out to the horizontal side of body with the cane of harvesting when moving back and forth with secondary shearing device.Said cane lateral transfer parts 34 transversely are arranged to the tabular body of strip the state of oblique back upper place at body, are fixed by bolts on the moving knife 31, move back and forth with moving knife 31.The top of said cane lateral transfer parts 34 is provided with jagged conveying service portion, can pass out to the horizontal side of body through the cane that moves back and forth harvesting.

simultaneously, secondary shearing device 14 is provided with and prevents that the cane that cuts off is obstructed and piles up the branch straw mulch plate 28 of usefulness.

that is to say; Be provided with and prevent that the connection frame of piling up cane at the superjacent air space that connects frame 15 from using cover plate 28A, and be provided with and prevent that the cane that cuts off is obstructed and is deposited in forward between the rack section 13c and bending rack section 13b the elevator platform of joggling part and use cover plate 28B.

like Fig. 9 and shown in Figure 10, base station 29 is supporting the connection frame and is using cover plate 28A, like Fig. 6; Fig. 8, Fig. 9 and shown in Figure 12, elevator platform use cover plate 28B; Across the front end position, top of rack section 13c and the upside position of bending rack section 13b forward, be the state that tilts, and; Section configuration is chevron, is fixed on each rack section 13b and the 13c.

The moving knife 31 transmission mechanism E of secondary shearing device 14 are next explained in .

are shown in figure 13, and by the tubular axle 18 that the bearing 17 that is positioned at 3 bearing 17 left ends supports, pair of right and left rolling bearing 35 is equipped with in the inner space of tubular axle 18, about rolling bearing 35 be supported and fixed on the driving shaft 26 between it.On the cantilever end 36A on the driving shaft that protrudes in tubular axle 18 36, the flange 38 of the rotation that transmits power input sprocket 37 is installed, than input sprocket 37 installation sites more near the position of bracketed part, setting-up eccentricity driven unit C.

eccentric drive assembly C is; By the rotation core 39 that installs and fixes with heeling condition on the driving shaft 36; Rotate the swing fixator 41 that comes overcoat to install by big bearing 40 on the core 39, the 4A of two end axles up and down of swing fixator 41 goes up by the shift fork portion 43 that little bearing 42 is installed and constitutes.

are because the rotation core 39 that is installed on the driving shaft 36 can be inclined with driving shaft 36 unitary rotation the time; Therefore; Drive the swing fixator 41 that comes overcoat to install by big bearing 40 on the core 39; Shown in arrow (a-b), drive it and swing to the left and right through rotating with the axle center of the center of rotation X2 quadrature of driving shaft 36.Thereby drive the swing fixator about in the of 41 on the two end axles shift fork portion 43 of overcoat also swing together.So just can pass through eccentric drive assembly C, formation lets the rotational motion of driving shaft 36 convert the reciprocating rotation switching mechanism in the left and right sides of stationary knife driving shaft 44 into.

like Fig. 2-shown in Figure 5, fixing assembling the place ahead stationary knife driving shaft 44 down in shift fork portion 43, and said stationary knife driving shaft 44 extends to the next door of secondary shearing device 14.Extend towards stationary knife driving shaft 44 from the bottom of sinistral hoist frame 13C, exceed mounting base 45, be fixed on the bearing block 46 of mounting base 45 front ends, the leading section that supports stationary knife driving shaft 44 freely rotates.

through this structure, and shift fork portion 43 drives stationary knife driving shafts 44 and swings, and rotates and freely rotates around the axle center Z of stationary knife driving shaft 44 self.

are fixed on outstanding bottom, stationary knife driving shaft 44 bearing blocks 46 belows with wobble drive arm 47, and the arm connecting portion 47A of wobble drive arm 47 extensions from then on is connected moving knife 31.

are according to above structure; The eccentric drive assembly drives core 39 by input sprocket 37 driving shafts 36; Swing fixator 41, shift fork portion 43, shift fork portion 43 drives cutter driving shaft 44; Driving shaft 44 wobble drive arms 47, arm connecting portion 47A drive the reciprocal driving about moving knife 31 carries out.

have formed the transmission mechanism E of secondary shearing device 14 through these parts, and this driver E is assemblied on the sinistral hoist frame 13C.

said ceding of Taiwan conveyer 3 through the B of bindiny mechanism can with the linkage status of secondary shearing device 14, and and secondary shearing device 14 interlock disarm states between switch.

this connect mechanism B; Like Fig. 1, Fig. 3, Figure 15 and shown in Figure 16; By the guiding parts 51 that leads with slotted hole 50 that is formed with that is positioned at secondary shearing device 14 1 sides; And be positioned at ceding of Taiwan conveyer 3 sides and be stuck in the axis of guide that is directed to 52 formations that guiding can move freely with slotted hole along slotted hole 50; And also comprising can be at the axis of guide 52 mode of operation with slotted hole 50 interlocks, and the operating means of changing between the axis of guide 52 interlock disarm state that can move freely along slotted hole 50 53 that is assemblied on the guiding parts 51 constitutes.

specifically like Fig. 2-shown in Figure 4, and connect mechanism B is installed on the carrying case 11A of central elevator frame 13A and connecting gear 11 among 3 elevator platform 13A, 13B, the 13C.This connect mechanism B has the guiding parts of strip on above-below direction.As shown in Figure 6, on the handle fulcrum 54 that is fixed on the central elevator frame 13A, the bottom of guiding parts 51 is installed.

are as shown in Figure 3, guiding parts 51, with the section that is positioned at top one side be the 51A of guide effect portion of コ font slightly, and the angle tubular that is positioned at bottom one side connects support portion 51B and links into an integrated entity.Like Figure 15 and shown in Figure 16, the section of the 51A of guide effect portion is to be the コ font, is made up of the 51a of metope portion of central authorities and the side plate 51b that connects of both sides company thereof, along the facial 51a of central wall.

are positioned at the leading section of the slotted hole 50 of guiding parts 51, laterally are directed to body what guiding can move freely in slotted hole, and just the axis of guide 52, are fixed on the horizontal sidepiece of transmission casing 11A.Be with slide-and-guide body outside on this axis of guide 52 with annular groove 55, just resinous lining guide 56, the recess 55 of the inner edge portion inlay busher guide 56 of guiding parts 51 slotted holes 50, under jammed state, the guiding axis of guide 52 moves.

guiding parts 51 has freely and changes, the linkage status that restricted guidance axle 52 moves along slotted hole 50 and allow the change operation means 53 of the releasing linkage status that the axis of guide 52 moves along slotted hole 50.In order change operation means 53 to be transformed into linkage status; The axis of guide 52 is in slotted hole 50 first line of a couplet and employs desired location P, and change operation means 53 restricted guidance axles 52 move along with the rising of ceding of Taiwan conveyer 3, when change operation means 53 is in linkage status; Allow the state of the axis of guide 52 from together rising with ceding of Taiwan conveyer 3; Get back to link and use desired location P, can freely retreat, also can reset to the structure of linkage status so designed change operation means 53.

supplemental instruction; Change operation means 53 is supported by the guiding parts of removing across linkage status and binding with mode of operation 51 that freely swings, and; Through throw over spring 57, according to requiring to keep position separately for elasticity under linkage status and the interlock disarm state.

are just shown in figure 15; Change operation means 53; Be to process through pole shape material is bent into Z word shape, manual operation unit 53a is arranged at top, and the 53b of restriction portion of restricted guidance axle 52 effects is arranged at the bottom; Between manual operation unit 53a and the 53b of restriction portion, be connected by transhipment department 53c; The bearing of between manual operation unit 53a and transhipment department 53c, fixing 58, the rotating fixed part 59 that is supported on guide member one side can rotate bearing 58 along the horizontal axle center X3 axle of body.Bearing 58 bends to and slightly is the L font, is equipped with spring 57 between the spring support portion 60 that forms on the swing side end of this bearing 58 and the guiding parts 51.

are through manual operation change operation means 53; Swing under the situation above fixing point according to the clockwise direction of Figure 15; Can be transformed into linkage status (show state of solid line among Figure 15),, remain under this linkage status through the elasticity of throw over spring 57.(this state is the linkage status of corresponding connect mechanism B).Perhaps; Surpass fixing point through manual operation; According to carrying out under the situation of swinging operation like the counter clockwise direction of Figure 15; Can be transformed into interlock disarm state (state that dotted line shows among Figure 15),, remain on this and link releasing with mode of operation (this state is the interlock disarm state of corresponding connect mechanism B) through the elasticity of throw over spring 57.

change operation means 53; Under linkage status; Guiding parts 51 is formed with through hole 61 on the side plate 51b of its both sides; Change operation means is under state that passes and connect through hole 61 and situation, and the upside inner edge portion of through hole 61 is joined therewith, and remains on this position; Under this state, restriction is moved to the top along the axis of guide that is positioned at slotted hole 50 downsides 52.Under this state,, secondary shearing device 14 is linked together with ceding of Taiwan conveyer 3 for secondary shearing device 14 can go up and down under the drive of carrying case 11A.

When are transformed into the interlock disarm state with change operation means 53, be accompanied by the descending operation of carrying case 11A, the axis of guide 52 will move freely within the scope that is directed to along the slotted hole 50 of guiding parts 51.Remove the interlock of secondary shearing device 14 and carrying case 11A, just can remove the interaction relation of secondary shearing device 14 and carrying case 11A descending operation, let it independently carry out descending operation.

are under this structure, and are for example, shown in figure 18; The axis of guide 52 be positioned at link with the state above the desired location P under (state shown in Figure 18 (b)), even by error change operation means 53 is transformed into linkage status, (state shown in Figure 18 (c)); Also can after secondary shearing device 14 ground connection, relatively move through decline ceding of Taiwan conveyer 3 with respect to guiding parts 51; Just can let the axis of guide 52 turn back to binding and use desired location P, shown in Figure 18 (d), change operation means 53 is through the pressing operation of the axis of guide 52; Carry out elasticity and retreat and reset, the axis of guide 52 will turn back to link uses desired location P.The axis of guide 52 turns back to and links with after the desired location P, and through the elasticity of throw over spring 57, change operation means 53 will automatically return to linkage status (state shown in Figure 18 (e)).

said guiding parts 51 is equipped with the limiting part 62 of restriction along with the rising move operation of ceding of Taiwan conveyer 3, and limiting part 62 can be regulated along the long side direction of slotted hole 50 in the installation site of guiding parts 51.

that is to say; Shown in figure 15, the limiting part 62 that is formed by connecting pin crosses the side plate 51b of guiding parts 51 both sides, the through hole 63 that 51b forms; But; Shown in figure 16, along the long side direction of slotted hole 50, be provided with the through hole 63 (like 4 places of illustrated example) at a plurality of intervals.Through limiting part 62 being arranged in the different right through holes 63, just can regulate the position of limiting part 62 along slotted hole 50 with respect to 51 of guiding parts.

are through being provided with above-mentioned limiting part 62; Even change operation means 53 is when being switched to the interlock disarm state; Through being risen, ceding of Taiwan conveyer 3 surpasses the height of setting; It is mobile that limiting part 62 restricted guidance axles 52 moving in slotted hole 50, the rising of ceding of Taiwan conveyer 3 are linked the axis of guide 52 drive guiding parts 51, thereby secondary shearing device 14 is risen.

consequently are transformed into change operation means 53 under the situation of interlock disarm state rising cutterbar assembly 9; Make its fringe end that only cuts off standing crop, therefore secondary shearing device 14 is set at lower position in order to cut off standing crop stem end; When under this operation form, gathering in operation; If turn near near ridge under the situation of operation, even change operation means 53 is not transformed into linkage status, through promoting ceding of Taiwan conveyer 3 significantly; Just can drive the also interlock rising together of secondary shearing device 14, thereby avoid and collision on the ground.

afterwards; Because the installation site of limiting part 62 on guiding parts 51; Can regulate and change along the length direction of slotted hole 50; Ceding of Taiwan conveyer 3 begins acting position with respect to the rising of body, can set through the position of regulating limiting part 62 in advance according to job status.

On the diverse location on the above-below direction of the bottom of guiding parts 51 2 rotational support portions 62 are set; Rotational support portion is embedded in an end of handle fulcrum 54; Through embedding different rotation support portion 64, can change and adjust the relative position of guiding parts 51 and secondary shearing device 14.

like this can be through the position of change guiding parts 51 bottoms, with regard to the position of working that begins of ability change setting limiting part 62 relative ceding of Taiwan conveyers 3.

in addition; The bottom of the slotted hole 50 that forms on the guiding parts 51 is when assembling, in order to assemble lining guide 56; Be formed with and let it embed the big footpath hole 50a of usefulness; Even ceding of Taiwan conveyer 3 is dropped to minimum, the axis of guide 52 can not move downwards from interlock desired location P, can not move to large-diameter portion 50a.

During harvesting operation, as shown in Figure 1, change operation means 53 is transformed into the interlock disarm state, and connect mechanism B will be transformed into the interlock disarm state.In addition, when crossing over ridge, shown in figure 19, change operation means 53 is transformed into linkage status, and connect mechanism B will switch to linkage status.

During harvesting operation, connect mechanism B is switched to after the interlock disarm state, and secondary shearing device 14 contacts the back and goes up and down with ground, and the height that is positioned at cutterbar assembly 9 rears and cutterbar assembly 9 is roughly the same, does not gather in operation.

then, and are when crossing over ridge, shown in figure 19; In order to prevent and the ridge collision that the ceding of Taiwan conveyer 3 that can rise significantly is until non-job position; Also can in advance connect mechanism B be transformed into linkage status, make ceding of Taiwan conveyer 3 rise to non-job position, secondary shearing device 14 is through the interlock of connect mechanism B; Under ceding of Taiwan conveyer 3 drives, rise, thereby prevent secondary shearing device 14 and ridge collision.

Other example:

In the middle of (1) said example; The butt side frame 13d of portion of elevator platform 13B; And front framework portion 13e sees from the side, is the curved configuration that appears towards raising, also can this structural change be become; The butt side frame 13d of portion extends to the position of secondary shearing device 14 height of living in from the below; Begin to extend horizontal rack section 13e1 from its front end, front and back extend to the place ahead from horizontal rack section 13e1 front end with horizontal attitude to rack section 13e2, see from the side that at this moment the butt side frame 13d of portion of elevator platform 13B and front framework portion 13e are the formations that demonstrates convex bending shape down.

In the middle of said example; Front framework portion 13e is made up of to rack section 13e2 horizontal rack section 13e1 and front and back; Also can this formation be become; With front framework portion 13e, tilt to extend to body front side (at body middle position in a lateral direction) from the front end of the butt side frame 13d of portion, form the single cradle portion of linearity.

In the middle of (3) said example, the elevator platform 13c of a side be by, tiltedly the formation example of the single cradle portion of linearity is extended in the below, the formation that the elevator platform 13c of an other side is case of bending is also passable.

In the middle of (4) said example, used as constituting elevator platform 13A, 13B; The square tube material of 13C support, but be not limited to user's tube material, also can use the pipe material; The pole material, angle steel, waveform material etc., difform timbering material.

The grain header of the utility model is used to gather in paddy rice; Wheat, the results of various crops such as soybean are through improving the support structure corresponding to secondary shearing device; The uneven problem of stubble is cut in elimination; Further improve the shape of elevator platform, prevent that secondary shearing device from contacting with ridge, improve the harvesting performance.

Claims (16)

1. the secondary shearing device of a kind of combine; Be positioned at main shearing device (9) below of the upright grain stalk of harvesting on the harvesting conveyer (3) that is arranged on grain header; Cut upright grain stalk; Said secondary shearing device (14) comprises a plurality of tubular axles (18) and the extended many elevator platforms (13A, 13B, 13C) from the axial the place ahead of said tubular; It is characterized in that: in the said many elevator platforms (13A, 13B, 13C); One side elevator platform (13B) is by the butt side frame portion (13d) that forwards extends out from said tubular axle (18); And more constitute near the front framework portion (13e) of body lateral mid-point from the extended butt side frame portion (13d) that compares of said butt side frame portion (13d); Said front framework portion (13e) is by the horizontal framework portion (13e1) that extends towards body lateral center direction from said butt side frame portion (13d) front end, and the rack section (13e2) of the fore-and-aft direction that extends towards body the place ahead from horizontal rack section (13e1) front end constitutes.

2. the secondary shearing device of a kind of combine according to claim 1; It is characterized in that: in said several elevator platforms (13A, 13B, 13C); Be positioned at the linearity rack section (13a) of the central elevator frame (13A) of center side, and become the extended bending rack section of bending (13d) to constitute down from linearity rack section (13a) front end by the shape extension that is in line.

3. secondary shearing device of a kind of combine according to claim 2, it is characterized in that: said central elevator frame (13A) comprises from the forwards extended rack section forward of said bending rack section (13b) (13c).

4. secondary shearing device of a kind of combine according to claim 3, it is characterized in that: said central elevator frame (13A) carries out Bending Processing by single frame material and forms.

5. secondary shearing device of a kind of combine according to claim 4; It is characterized in that: in said several elevator platforms (13A, 13B, 13C), the opposite side elevator platform (13C) of traveling machine body horizontal direction is to be made up of single frame material.

6. according to the secondary shearing device of any described a kind of combine in the claim 1～5, it is characterized in that: a said side elevator platform (13B) is seen from top to bottom and is bent to crank-like.

7. a kind of combine; Comprise from gearbox (24) the extended axle box of both lateral sides direction (25) to the left and right; On the traveling machine body (2) that is provided with the running gear (1) that is being supported by said axle box (25); But be supported with the harvesting conveyer (3) of free lifting; Said harvesting conveyer (3) has the main shearing device (9) and the conveyance of the fringe end of the upright paddy stalk of harvesting and gathers in the connecting gear (11) that the said fringe end that gets off grain portion; Be provided with the secondary shearing device (14) that can be supported on the said upright paddy stalk of cutting on the said traveling machine body (2) in the position that is lower than said main shearing device (9) free lifting; Said secondary shearing device (14) by; Follow away that the body lateral separation arranges, the several elevator platforms (13A, 13B, 13C) that forwards extend on the said traveling machine body (2), but free lifting be supported on the said traveling machine body (2); It is characterized in that: in said several elevator platforms (13A, 13B, 13C); Central elevator frame (13A) in the horizontal central authorities of traveling machine body is positioned at said carrying device (11) and between the axle box (25) of carrying device (11) below, comprises the bending rack section (13b) that linearity rack section (13a) that shape linearly extends and front side from the leading section of linearity rack section (13a) towards said axle box (25) become bending to extend out downwards.

8. a kind of combine according to claim 7, it is characterized in that: said central elevator frame (13A) has the rack section forward (13c) that forwards extends from the lower end of said bending rack section (13b).

9. a kind of combine according to claim 8 is characterized in that: said central elevator frame (13A) is formed through Bending Processing by a frame material.

10. a kind of combine according to claim 7; It is characterized in that: said secondary shearing device (14) is by the several elevator platforms (13A, 13B, 13C) that forwards extend from said traveling machine body (2) that follow away that the body lateral separation arranges; But be supported on the said traveling machine body (2) free lifting; In said several elevator platform (13A, 13B, 13C); Be positioned at the elevator platform (13B) of nearly Drive Section one side of traveling machine body horizontal direction; Comprise butt side frame portion (13d) and front framework portion (13e), wherein butt side frame portion (13d) is extended to body the place ahead in the lateral outer side of the running gear (1) of a side that is positioned at the horizontal nearly Drive Section of traveling machine body, and front framework portion (13e) is extended from the front end of butt side frame portion (13d); In the place ahead of the running gear (1) of a said side, the distolateral framework portion of beguine (13d) is more near the horizontal central authorities of body.

< 11. b >a kind of combine according to claim 10; It is characterized in that: said secondary shearing device (14) is supported on the said traveling machine body; The end of the Drive Section side of said secondary shearing device (14); See that from the traveling machine body fore-and-aft direction lateral outer side end with the running gear (1) of a said side is at same position, perhaps a little near the traveling machine body lateral center.</b>

< 12. b >a kind of combine according to claim 10; It is characterized in that: said front framework portion (13e) comprises that horizontal rack section (13e1) and front and back are to rack section (13e2); Wherein laterally rack section (13e1) is from the front side of the running gear (1) of the front end of said butt side frame portion (13d), a said side towards the horizontal expansion of body lateral center side, and front and back are that front end from horizontal rack section (13e1) extends to body the place ahead to rack section (13e2).</b>

< 13. b >a kind of combine according to claim 12, it is characterized in that: extend to the body front lower place to rack section (13e2) said front and back.</b>

< 14. b >a kind of combine according to claim 7; It is characterized in that: in said several elevator platforms (13A, 13B, 13C); Be positioned at opposite side elevator platform (13C) with the horizontal opposite side of Drive Section of traveling machine body and be by to oblique below linearly the extended single-rack of shape portion constitute, pass on the transmission mechanism (E) of driving force to be arranged on the said opposite side elevator platform (13C) to said secondary shearing device (14).</b>

< 15. b >a kind of combine according to claim 7; It is characterized in that: said secondary shearing device (14) is to be made up of the reciprocating type reaping apparatus that is provided with the moving knife (31) that moves back and forth along the traveling machine body horizontal direction; Said secondary shearing device (14) is in the horizontal almost across whole traveling machine body (2); And; With the said moving knife that moves back and forth (31) one, lateral transfer parts (34) are installed on the said secondary shearing device (14), will be transmitted to the body horizontal direction by the crop of said secondary shearing device (14) harvesting.</b>

16. are according to any described a kind of combine in the claim 7～15; It is characterized in that: drive the rising mechanism (A) that said secondary shearing device (14) moves upward; Be arranged on the said axletree casing (25), act on the linearity holder part (13a) on the said middle elevator platform (13A).

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