CN1213652C - Cutting device and disk saw blade - Google Patents

Abstract

A cutting device C includes low-speed rotation blades, great high-speed rotation blades and little high-speed rotation blades. Respective blade edge of the low-speed rotation blade matches together with respective blade edge of the great high-speed rotation blade looks sideways, additionally, low-speed rotation blades matches together with the little high-speed rotation blades in the condition of cutting plant foot with a small size. The high-speed rotation blades is disposed corresponding to the high-speed rotation shaft is that rotary blades having formed recessed edge parts on the outer periphery are laid at a side to which the plant foot part of waste straw is sent and rotary blades having no recessed edge parts on the outer periphery are laid at a side to which the ear tip of waste straw is sent.

Description

Shearing device and disk saw blade

Technical field

The present invention relates to the shearing device of discharge paddy straw that the agricultural combine afterbody disposed and so on and the formation of employed disk saw blade thereof.

Background technology

The shearing device of agricultural combine in the past, dispose a plurality of disk saw blades respectively on two rotating shafts that be arranged in parallel in front and back, to observe in the axial direction mutually be to overlap to the part of disk saw blade before and after making, rotating shaft rotates with opposite directions, between the disk saw blade of front and back, paddy bar behind input harvesting and the shelling cuts off this paddy bar with the intersection of front and back disk saw blade.The paddy bar that drops into is by being contained in the rotation in opposite directions of the disk saw blade on two rotating shafts, and is in and the axle center of the two rotating shafts state of parallel shape slightly, is transported to off-position under this state.Owing on the periphery of disk saw blade, be formed with sawtooth, like this, can cause the transfer efficiency of paddy bar to worsen.The measure that known technology adopted is for this reason, and the appropriate position on the outer peripheral portion of disk saw blade forms the recess towards blade center's side, the paddy bar is remained in the formed recess, to improve transfer efficiency, for example, the disclosed technology of the Japan special permission clear 57-10686 of communique notification number.

But, about forming the technology of recess on this periphery, when improving paddy bar feeding efficient, also brought negative influence, that is: along with the rotation of disk saw blade, the coincidence area that cuts off the necessary aforementioned disk saw blade of paddy bar can change.When the blade edge beyond the disk saw blade recess overlaps, can be overlapped area fully, all can cut off paddy bar any part.Yet, when the recess of a side disk saw blade in the disk saw blade of front and back overlaps, embed on the paddy bar in this recess and have only thick stem to be cut off, and tiny fringe sprig is when partly entering recess, therefore the razor sharpened of another disk saw blade can not be touched this fringe sprig, can not be with its cut-out.As a result, the fringe sprig of Qie Duaning can not be wound on the rotating shaft, produces the problem of stopping up this recess.

In addition, the shape of this recess of disk saw blade in the past is such: on the posterior lateral margin of direction of rotation is in direction near this blade radial direction, and the tangential direction of disk saw blade periphery forms the angle of point relatively.Such disk saw blade is in the continuous cutting-off process, in case after these posterior lateral margin abrasion, will produce the phenomenon that the paddy bar is hung over this posterior lateral margin.Be hung on this posterior lateral margin and be transported to the occasion of off-position at the paddy bar, the paddy bar is to cut off under the state that hangs also bending, the size of being cut off is longer than predetermined cut-out size naturally, perhaps, because cut-out poor performance at recess, cut-off parts can not be wound on the rotating shaft, and this also is the main cause that causes obstruction.

Summary of the invention

Therefore, purpose of the present invention will address the above problem exactly.

Hereinafter, be illustrated as the means that address the above problem.According to first aspect present invention, a kind of shearing device is provided, each side to disk saw blade is contained on the high-speed rotating shaft, the opposing party is contained on the low speed rotation axle that be arranged in parallel with this high-speed rotating shaft, each overlaps the axis direction of disk saw blade from two rotating shafts, this several to disk saw blade along the axis parallel of two rotating shafts be arranged side by side, this two rotating shaft rotates in the opposite direction, this paddy bar is configured to slightly be parallel to the form of this core, and the paddy bar is transported to several cut-off parts that disk saw blade is overlapped, on these two rotating shafts, adorning pocket-wheel, wherein, the part that is used to cut off paddy bar stem at least one rotating shaft of these two rotating shafts, first disk saw blade more than one is housed, the periphery of this first disk saw blade is provided with the recess that is used to keep the paddy bar more than, in the part that is used to cut off paddy bar fringe of this rotating shaft, be equipped with more than one with first disk saw blade with second disk saw blade of not establishing recess on the periphery of diameter.

According to a second aspect of the invention, the shearing device that relates to first aspect, wherein, in whole described first and second disk saw blade on being installed on described rotating shaft, be configured on the part that is used to cut off paddy bar stem, the blade near this rotating shaft one end is first disk saw blade, be configured on the part that is used to cut off paddy bar fringe, the blade near this rotating shaft other end is second disk saw blade.

According to a third aspect of the invention we, in the described shearing device of first aspect, in whole described first and second disk saw blade on being installed on described rotating shaft, be configured on the part that is used to cut off paddy bar stem, be first disk saw blade near the blade more than two this rotating shaft one end, continuous, be configured on the part that is used to cut off paddy bar fringe, be second disk saw blade near the blade more than two this rotating shaft other end, continuous.

According to a forth aspect of the invention, a kind of shearing device is provided, by means of several disk saw blade handle harvestings to overlapping, paddy bar behind the shelling is cut off, each side to disk saw blade is contained on the high-speed rotating shaft, the opposing party is contained on the low speed rotation axle that be arranged in parallel with this high-speed rotating shaft, each overlaps the axis direction of disk saw blade from two rotating shafts, this several to disk saw blade along the axis parallel of two rotating shafts be arranged side by side, this two rotating shaft rotates in the opposite direction, this paddy bar is configured to slightly be parallel to the form of this core, and the paddy bar is transported to several cut-off parts that disk saw blade is overlapped, wherein, on at least one rotating shaft of these two rotating shafts, in the mixed configuration mode more than one first disk saw blade and more than one second disk saw blade are installed, the periphery of this first disk saw blade is provided with the recess that is used to keep the paddy bar more than, and this second disk saw blade is identical with the diameter of first disk saw blade, does not establish recess on its periphery.

According to a fifth aspect of the invention, first, second, third or the described shearing device of fourth aspect in, the cephalolateral margin of the first disk saw blade recess and posterior lateral margin are the obtuse angle with respect to the angle that direction of rotation surrounded.

According to a sixth aspect of the invention, in the described shearing device, wherein, the posterior lateral margin of described recess constitutes the angle of sweepback with respect to the direction of rotation of described first disk saw blade aspect the 5th.

According to a seventh aspect of the invention, provide a kind of disk saw blade, wherein, its periphery is provided with more than one recess, is the obtuse angle with respect to the angle that direction of rotation surrounded between the cephalolateral margin of this recess and the posterior lateral margin.

According to an eighth aspect of the invention, in the disk saw blade aspect the 7th, the posterior lateral margin of described recess constitutes the angle of sweepback with respect to the direction of rotation of described disk saw blade.

Below, be described with reference to the accompanying drawings the present invention.

Description of drawings

Fig. 1 is the end view of the shearing device of combine.

Fig. 2 be in the high speed rotating blade of the big footpath of expression the stem conveyor side for the disk saw blade fringe point conveyor side of band recess for not with the perspective view of the shearing device under the situation of the disk saw blade of recess.

Fig. 3 is the plane of the configuration of disk saw blade in the shearing device embodiment illustrated in fig. 2.

Fig. 4 is the side cutaway view of shearing device embodiment illustrated in fig. 2.

Fig. 5 is the front elevation that outer peripheral portion has the disk saw blade of recess.

Fig. 6 is the cutaway view in X-X cross section among Fig. 4.

Fig. 7 is the enlarged drawing of recess.

Fig. 8 is not with the front elevation of the disk saw blade of recess on the outer peripheral portion.

Fig. 9 is that expression low speed rotation blade and outer peripheral portion be not with the coincide end view of state of the big footpath high speed rotating blade of recess.

Figure 10 is the coincide end view of state of (intersection hour) of the big footpath high speed rotating blade of band recess on expression low speed rotation blade and the outer peripheral portion.

Figure 11 is the coincide end view of state of (intersection hour) of the big footpath high speed rotating blade of expression low speed rotation blade and outer peripheral portion band recess.

Figure 12 is the perspective view of occasion of big footpath high speed rotating blade all being made the disk saw blade of same band recess.

Embodiment

Hereinafter, by Fig. 1 to Fig. 4, the formation of shearing device (shearing device) C is described.About shearing device C, between left and right sides shearing device side plate 10L, 10R, can rotate freely the ground transverse strands and be provided with high-speed rotating shaft 11.Rear positions on this shearing device side plate 10L, 10R, can be provided with fulcrum 15L, 15R with rotating freely, fulcrum 15L, 15R head lamp brush guard pivot be supported with outer support plate 16L, 16R, on the top of outer support plate 16L, 16R, laterally set up and pivotally supporting low speed rotation axle 20 in the mode that is parallel to aforementioned high-speed rotating shaft 11.

Peristome 10a, the 10a of shearing device side plate 10L, 10R run through and the bottom of support plate 17L, 17R in being fixed in the top of this outer support plate 16L, 16R.In this, between the upper end of support plate 17L, 17R, be horizontally set with connecting axle 19, two interior support plate 17L, 17R have been coupled together.Handle 18 (operation tool) is fixed on an end of this connecting axle 19, and outstanding from the slotted hole 10b that is arranged on the shearing device side plate 10L.Handle 18 moves low speed rotation axle 20, so that switch the size that paddy bar described later cuts off according to length.This handle 18 can also rotate front and back, and in each fixed-site.

Below, the formation that drives aforementioned high-speed rotating shaft 11 and low speed rotation axle 20 is described.As shown in Figure 1, on the high-speed rotating shaft 11 in the shearing device side plate 10L outside, be equipped with input belt pulley (pulley) 30 regularly, this belt pulley 30 is by the power of belt (endless belt) transmission from host computer side, on high-speed rotating shaft 11, also be provided with sprocket wheel 31, and, on aforementioned fulcrum 15L, be set with sprocket wheel 32 and counter gear 34, between sprocket wheel 31 and sprocket wheel 32, be wound with chain 33.Be fixed with on aforementioned low speed rotation axle 20 and aforementioned counter gear 34 meshed gears 35, thus, high-speed rotating shaft 11 and low speed rotation axle 20 rightabout shown in the arrow in the figure rotates mutually.

Below, illustrate that the assembling of each disk saw blade on the rotating shaft 11,12 constitutes.

At first, on low speed rotation axle 20, be installed with a plurality of low speed rotation blades 21 at certain intervals in parallel to each other, fixedly be equipped with corresponding pocket-wheel 22 each other at low speed rotation blade 21,21.

And, in the embodiment of Fig. 2 and Fig. 4, on this high-speed rotating shaft 11, in sequence, with certain interval, in parallel to each other be set with respectively several pieces of little high speed rotating blades 12 as same class path disk saw blade, as the two roughly the same big high speed rotating blade 40,41 and the pocket-wheels 14 of the big footpath disk saw blade of a diameter.

In the big high speed rotating blade 40,41 of the big footpath of two classes disk saw blade, big high speed rotating blade 40 is as first disk saw blade, its periphery is provided with the recess 40b that is used to keep carrying the paddy bar, and big high speed rotating blade 41 is not provided with corresponding recess as second disk saw blade on its periphery.

In the present embodiment, as shown in Figures 2 and 3, big high speed rotating blade 40,40 each other (41,41 each other or 40,41 each other) dispose two pieces little high speed rotating blades 12, between little high speed rotating blade 12 and big high speed rotating blade 40 and little high speed rotating blade 12,12 dispose pocket-wheel 14 each other respectively.

Each low speed rotation blade 21 with little high speed rotating blade 12, big high speed rotating blade 40 and big high speed rotating blade 41 on left and right directions the position a little disposing with staggering.When the paddy bar being cut into short paddy bar, as shown in Figure 4, low speed rotation blade 21 is configured to that the circumference of its circumference and little high speed rotating blade 12 is seen from the side, and (axis direction of rotating shaft 11,20 is seen) overlaps.When the paddy bar is cut off the paddy bar of growing up, be configured to make its circumference and the circumference read fortune mutual respect from the side of big footpath rotating blade 40 (41) to close on low speed rotation blade 21.The switching of low speed rotation blade 21 between these two positions realizes by operating aforementioned handle 18.

All be formed with sawtooth on the periphery of little high speed rotating blade 12, big high speed rotating blade 40,41 and low speed rotation blade 21, in order to improve the durability of this sawtooth the inside, spraying plating inside has from the dissolubility alloy.

Hereinafter, according to the shape of Fig. 5 to Fig. 7 explanation as the big high speed rotating blade 40,41 of first disk saw blade of the present invention, second disk saw blade.

To shown in Figure 7, on the blade edge 40d (with reference to Fig. 6) of the periphery of first disk saw blade that becomes big high speed rotating blade 40, at regular intervals, be formed with a plurality of crown 40a of portion and the more than one recess 40b that constitute sawtooth as Fig. 5.In the present embodiment, be provided with the recess 40b (thereby a big high speed rotating blade 40 has 6 recess 40b) of 60 degree.

This recess 40b's is recessed to the center towards blade, and the front and rear edge of its direction of rotation (circumferencial direction) its radial direction relatively tilts, and front and back two intermarginal angle betas are the obtuse angle.And the posterior lateral margin 40c of the relative direction of rotation of this recess 40b forms in the mode at the angle of sweepback that becomes direction of rotation, and its angle γ is preferably in 30～60 degree, and like this, the paddy bar just can not hang on the recess 40b when rotation was cut off, and can prevent that the paddy bar is involved in rotating shaft etc.In addition, when a plurality of first disk saw blade is housed on the rotating shaft, because the rotatable phase unanimity of each recess 40b, thereby improved the transfer efficiency of paddy bar by recess 40b.

As shown in Figure 6, have the blade edge 40d of 40a of crown portion and recess 40b, blade is done having a certain degree with respect to this honorable angle [alpha], therefore can carry out attrition process with single operation.

So, in case the first such disk saw blade is contained on the rotating shaft rotation, carries out the conveying of paddy bar and when cutting off, though carry out operation repeatedly, also can wear away recess 40b, but because this recess 40b is the obtuse angle shape, its posterior lateral margin 40d becomes the inclined plane with the sweepback dihedral, thereby the paddy bar can flow from this inclined plane to rear swivel, can not feed to cut-out portion to a large amount of paddy bars once, but take over, in turn to the recess 40b at direction of rotation rear feeding, cut off thereby the paddy bar of appropriate amount can be transported to successively off-position.

The result, about be contained on the rotating shaft first disk saw blade (in the present embodiment, be the big high speed rotating blade 40 that is contained on the high-speed rotating shaft 11), even its recess 40b produces abrasion, owing to eliminated because of once a large amount of paddy bars being transported to the phenomenon that the paddy bar appears not cutting off in off-position, thereby prevented that this from not cutting off part and bending and be wound on rotating shaft etc. and go up and produce blocking problem, can cut off the paddy bar, obtained stable cut-out performance according to preliminary dimension.

Fig. 8 shows second disk saw blade that becomes big high speed rotating blade 41 in the present embodiment.Do not have on its periphery to be provided with and be equivalent to the recess of recess 40b, but only become the blade edge of sawtooth, this blade edge similarly so that the mode that its relative this honorable angle [alpha] becomes certain angle form.Like this, though carry the ability of paddy bar a bit weaker, has the ability that the sawtooth by full week cuts off well.

Then, illustrate that big high speed rotating blade 40,41 is in the high-speed rotating shaft 11 relative configuration on axially.

First, the configuring condition of big high speed rotating blade 40,41 is described, in this case, supposing to eliminate handle 18 is configured in the front side, little high speed rotating blade 12 and low speed rotation blade 21 is looked from the side do not coincide and have only big high speed rotating blade 40,41 and low speed rotation blade 21 coincides and the problem that occasion took place the paddy bar cut off by long size.

When under handle 18 is configured in the state of front side, cutting off operation, because little high speed rotating blade 12 and low speed rotation blade 21 look from the side and do not coincide, so two blades 12,21 do not produce cutting action, again owing to have only big high speed rotating blade 40,41 and low speed rotation blade 21 look that from the side the part that coincides cuts off the paddy bar, so cut-out longer dimension of paddy bar, therefore, the long occasion of setting of cutting off size, though by pocket-wheel 14, the effect of 22 feedings is less, but still can be by the recess 40b generation feeding effect of big directly disk saw blade 40 at a high speed.

Setting so long occasion of cutting off size, as Figure 10 and shown in Figure 11, during 11,20 rotations of two rotating shafts, the blade edge 40b of the blade edge of low speed rotation blade 21 and big high speed rotating blade 40 overlaps area, when the 40a of crown portion overlaps with low speed rotation blade 21, become big, and when recess 40b overlaps with low speed rotation blade 21, diminish.Promptly overlapping area changes.

When 40a of crown portion and 21 coincidences of low speed rotation blade, can be overlapped area fully, also can cut off corresponding paddy bar part fully.On the other hand, when recess 40b and low speed rotation blade 21 overlaps, be embedded in the occasion of paddy bar stem at recess 40b, because stem is thicker, the crown of low speed rotation blade 21 can arrive stem, thereby it can be cut off.Stretch into the inside of recess 40b as stem end, even some is not cut off, on thicker stem, because the angle of sweepback that has the edge 40c of aforesaid rear swivel side to form, in rotation, this stem presses to rear swivel by low speed rotation blade 21 along this edge 40c, arrives with low speed rotation blade 21 superposed part to be cut off.So,, further move, snap in the next recess 40b, also can be transported to off-position and cut-out reliably to rear swivel even this stem slips on rotating blade and is not cut off.

Relative with it, in recess 40b, snap in the occasion of the fringe sprig of paddy bar, in case this fringe sprig extend into the inside of recess 40b, the crown of low speed rotation blade 21 just can not arrive this fringe sprig place, even there is the edge 40c of the rear swivel that forms aforementioned angle of sweepback to exist, tiny branch also can be attached to the inside of recess 40b, do not get off to rear swivel is mobile and remaining, the result, the sprig that remains in the recess 40b of not cutting off produces obstruction, causes that the thing that the cut-out performance weakens, is wound on the rotating shaft takes place.

, the present invention disposes big high speed rotating blade 40 on the part of carrying paddy bar stem on high-speed rotating shaft 11, dispose the big high speed rotating blade 41 of not being with recess on the part of carrying paddy bar fringe.As shown in Figure 9, during 11,20 rotations of two rotating shafts, usually, the blade edge of big high speed rotating blade 41 and the blade edge of low speed rotation blade 21 are seen from the side with certain sufficient coincidence area and are coincided, therefore can cut off the fringe sprig all the time.

About the performance that the paddy bar is carried to off-position, the stem portion of paddy bar is by in the recess 40b that embeds big high speed rotating blade 40 and all be sent to off-position reliably.So, arriving the paddy bar of off-position, the area change that overlaps of its stem portion and big high speed rotating blade 40 and low speed rotation blade 21 has nothing to do and is cut off, and as for the fringe part, also can be cut off reliably by big high speed rotating blade 41 and low speed rotation blade 21.Therefore, at the cut-out longer dimension of paddy bar and handle 18 is positioned at the occasion of front side, can in four corner, cut off the paddy bar with the size of setting.

Like this, can be with following basic mode at the big footpath of configuration on the high-speed rotating shaft 11 disk saw blade 40,41: carrying the big footpath of configuration disk saw blade 40 in the zone of paddy bar stem portion, configuration disk saw blade 41 greatly directly in the zone of carrying paddy bar fringe part.

Certainly, when the feeding stem portion,, in each zone, preferably dispose big footpath disk saw blade 40,41 more than two pieces respectively continuously corresponding to each several part in order to realize the stable cut-out of fringe part.Thereby can avoid part stem still not carried and part fringe portion such as is not cut off at problem.

In the embodiment of Fig. 2 and Fig. 3, be arranged in the cohort of the big high speed rotating blade 40,41 on the high-speed rotating shaft 11, the blade that is positioned at stem side (side plate 10L side) outermost end (left end) position is a big footpath disk saw blade 40, and be positioned at the locational blade of fringe side (side plate 10R) outermost end (right-hand member) is big footpath disk saw blade 41, for corresponding with the cut-out of fringe, what be provided with continuously from left end to the second piece is big footpath disk saw blade 41, and beginning to right-hand member from the 3rd piece of left end is the big footpath disk saw blade 40 that has recess 40a.The continuous piece of several stem length and spike length degree according to the paddy bar separately of big footpath disk saw blade 40,41 carry out suitable change.

If recess 40b has abrasion etc., even the crown of low speed rotation blade 21 can not arrive the stem portion that embeds the paddy bar in the recess 40b, can not cut off, but, because recess 40b of the present invention as previously mentioned, edge 40c with rear swivel forms the angle of sweepback, thereby this stem portion can not be blocked in the recess 40b, but is cut off by the intersection dislocation with the low speed rotation blade 20 of rear swivel.

In addition, be configured under Fig. 2 and the state shown in Figure 3 at big high speed rotating blade 40,41, in case make handle 18 rotate to the rearward position at rear, not only big high speed rotating blade 40,41 and low speed rotation blade 21 are observed from the side and are overlapped, and little high speed rotating blade 12 is also looked from the side with low speed rotation blade 21 and is coincided, therefore utilize large and small high speed rotating blade 12,40,41 and low speed rotation blade 21, can cut off the paddy bar with short size.In this occasion, to observe from the side, the area of the area that big high speed rotating blade 40,41 and low speed rotation blade 21 coincide when setting with long cut-out size is big, and the impact during cut-out is big and be easy to stop up.But because the recess 40b of a plurality of pocket-wheels 22, a plurality of pocket-wheels 14 on the high-speed rotating shaft 11 and big high speed rotating blade 40 on the low speed rotation axle 20 has the effect of feeding paddy bar, the result can avoid the obstruction of paddy bar, can be reliably with its cut-out.

The second, illustrate that handle 18 is fixed on the configuring condition of big high speed rotating blade 40,41 of the occasion of forward position (the cut-out size of paddy bar is set the position of growth size).

When this short size is cut off operation, the recess 40b of low speed rotation blade 20 and big high speed rotating blade 40 observes when overlapping from the side, it is also very abundant that it overlaps area, even the thin fringe sprig of paddy bar stretches into the inside of recess 40b, the crown of low speed rotation blade 20 also can arrive off-position, and the big high speed rotating blade 40 that disposes on the transport portion of fringe can not counteract.That is, can consider to cut off performance, only consider under the prerequisite of feeding effect not needing, in position big high speed rotating blade 40 configurations.

At this, the configuration of big high speed rotating blade 40,41 is irrelevant with the conveyor zones of for example stem portion, fringe part, but mixes ground (for example alternately) configuration in the Zone Full of rotating shaft 20.If like this, deviation all can not take place on the length direction in the paddy bar, and the feeding effect of the recess 40b of promptly big high speed rotating blade 40 also can affact the transport portion of fringe.In addition, the coincidence area of observing from the side of this recess 40b and low speed rotation blade 20 is bigger, even thin fringe sprig is also had the ability of cutting off fully, thereby as shown in figure 12, whole big high speed rotating blades become first disk saw blade 40.

According to present embodiment, though be that first disk saw blade of same diameter and second disk saw blade are configured on the high-speed rotating shaft 11 as big high speed rotating blade 40,41, also can consider first disk saw blade, second disk saw blade as the low speed rotation blade configuration on low speed rotation axle 20.In this occasion, the configuration of first disk saw blade and second disk saw blade also is applicable to the present invention.

The present invention has following effect owing to constitute in the above described manner.First, by means of several the disk saw blade handle that overlaps is being gathered in, in the shearing device that paddy bar behind the shelling is cut off, each side to disk saw blade is contained on the high-speed rotating shaft, the opposing party is contained on the low speed rotation axle that be arranged in parallel with this high-speed rotating shaft, each overlaps the axis direction of disk saw blade from two rotating shafts, this several to disk saw blade along the axis parallel of two rotating shafts be arranged side by side, this two rotating shaft rotates in the opposite direction, this paddy bar is configured to slightly be parallel to the form of this core, and the paddy bar is transported to several cut-off parts that disk saw blade is overlapped, its improvement is, the part that is used to cut off paddy bar stem at least one rotating shaft of these two rotating shafts, first disk saw blade more than one is housed, the periphery of this first disk saw blade is provided with the recess that is used to keep the paddy bar more than, the part that is used to cut off paddy bar fringe at this rotating shaft, be equipped with more than one with first disk saw blade with second disk saw blade of not establishing recess on the periphery of diameter, constitute shearing device with this, therefore, the stem portion of paddy bar is kept and conveying reliably by the recess of this first disk saw blade, cut off, the fringe part of paddy bar is cut off reliably by the sawtooth of the full Zhou Shangwu recess of this second disk saw blade, thereby can be at each blade interval to each other in first disk saw blade and the second disk saw blade cohort, positively cut off the paddy bar with suitable cut-out size, prevented from not cut off the paddy bar and stopped up, the problem of twining takes place.

Second, in the structure of the shearing device that constitutes above-mentioned first aspect, its improvement is, in whole aforementioned first and second disk saw blade on being installed on aforementioned rotating shaft, be configured on the part that is used to cut off paddy bar stem is first disk saw blade near the blade of this rotating shaft one end, be configured on the part that is used to cut off paddy bar fringe is second disk saw blade near the blade of this rotating shaft other end, therefore, with first beyond the outermost end, the configuration-independent of second disk saw blade, stem portion can be accepted the feeding effect of first disk saw blade of outermost end really with Min., the fringe part also can be accepted the cutting action of second disk saw blade of outermost end really with Min., obtains the effect of aforementioned first aspect.Thereby, can be according to ratio as paddy bar fringe that cuts off object and stem zone, consider the configuration of first, second disk saw blade between first, second disk saw blades of two outermost end.That is to say, can obtain and the environment for use of shearing device and the long suitable configuration formation that adapts that waits of paddy bar bar.

The 3rd, in the structure of the shearing device that constitutes above-mentioned first aspect, its improvement is, in whole aforementioned first and second disk saw blade on being installed on aforementioned rotating shaft, be configured on the part that is used to cut off paddy bar stem, near this rotating shaft one end, continuous blade more than two is first disk saw blade, be configured on the part that is used to cut off paddy bar fringe, near this rotating shaft other end, continuous blade more than two is second disk saw blade, therefore, in each conveyor zones of the conveyor zones of the conveyor zones of paddy bar stem portion and fringe part, disposing the disk saw blade of same diameter recess and the disk saw blade of no recess respectively continuously, so the defective of the stem that can eliminate the not cut fringe of part and partly not be transferred can realize cutting off reliably and carrying.

The 4th, by means of several the disk saw blade handle that overlaps is being gathered in, in the shearing device that paddy bar behind the shelling is cut off, each side to disk saw blade is contained on the high-speed rotating shaft, the opposing party is contained on the low speed rotation axle that be arranged in parallel with this high-speed rotating shaft, each overlaps the axis direction of disk saw blade from two rotating shafts, this several to disk saw blade along the axis parallel of two rotating shafts be arranged side by side, this two rotating shaft rotates in the opposite direction, this paddy bar is configured to slightly be parallel to the form of this core, and the paddy bar is transported to several cut-off parts that disk saw blade is overlapped, its improvement is, on at least one rotating shaft of these two rotating shafts, in the mixed configuration mode more than one first disk saw blade and more than one second disk saw blade are installed, the periphery of this first disk saw blade is provided with the recess that is used to keep the paddy bar more than, this second disk saw blade is identical with the diameter of first disk saw blade, do not establish recess on its periphery, constitute shearing device with this, therefore, the occasion of cutting off at first disk saw blade that utilizes recess to entrain into fringe, the effect that can give full play to first disk saw blade to make the paddy bar on whole length, deviation not take place and carry the paddy bar reliably, in addition, also can obtain making the paddy bar that deviation not take place on whole length by second disk saw blade, cut off the effect of paddy bar reliably.

The 5th, constituting above-mentioned first, second, the 3rd or the structure of the shearing device of fourth aspect in, its improvement is, the cephalolateral margin of the aforementioned first disk saw blade recess and posterior lateral margin are the obtuse angle with respect to the angle that direction of rotation surrounded, if the stem portion of paddy bar embeds the inside of the first disk saw blade recess, can not fully be cut off, in rotary course, will from recess, successfully flow to rear swivel, the position that two blades of very fast arrival two rotating shafts overlap is cut off, in addition reliably, even the paddy bar is not cut off, also can flow to next recess, therefore, can prevent from once a large amount of paddy bar feeding off-positions to be caused that the thing of obstruction takes place, can improve the cut-out effect all the time with an amount of paddy bar feeding off-position.Moreover, if recess is deepened because of abrasion wait, owing to just wear away original obtuse angle, thereby, can not reduce the ability that the paddy bar flows to rear swivel, can long term maintenance cut off ability.

The 6th, in the structure that constitutes the shearing device aspect the above-mentioned the 5th, its improvement is, the posterior lateral margin of aforementioned recess constitutes the angle of sweepback with respect to the direction of rotation of aforementioned first disk saw blade, thereby can further guarantee the mobilization of the described paddy bar in the 5th aspect to rear swivel, improve conveying capacity and cut-out ability.

The 7th, in the formation of disk saw blade, its periphery is provided with more than one recess, is the obtuse angle with respect to the angle that direction of rotation surrounded between the cephalolateral margin of this recess and the posterior lateral margin, and the shearing device that utilizes such disk saw blade to constitute can access the effect of aforementioned the 5th aspect.

The 8th, in the structure that constitutes the shearing device aspect the above-mentioned the 7th, its improvement is, the posterior lateral margin of aforementioned recess constitutes the angle of sweepback with respect to the direction of rotation of aforementioned disk saw blade, constitute disk saw blade successively, the shearing device that utilizes such disk saw blade to constitute can access the aforementioned described effect in the 7th aspect.

Claims (5)

1, a kind of shearing device, each side to disk saw blade is contained on the high-speed rotating shaft, the opposing party is contained on the low speed rotation axle that be arranged in parallel with this high-speed rotating shaft, each overlaps the axis direction of disk saw blade from two rotating shafts, this several to disk saw blade along the axis parallel of two rotating shafts be arranged side by side, this two rotating shaft rotates in the opposite direction, this paddy bar is configured to slightly be parallel to the form of this core, and the paddy bar is transported to several cut-off parts that disk saw blade is overlapped, on these two rotating shafts, adorning pocket-wheel, it is characterized in that, the part that is used to cut off paddy bar stem at least one rotating shaft of these two rotating shafts, first disk saw blade more than one is housed, the periphery of this first disk saw blade is provided with the recess that is used to keep the paddy bar more than, in the part that is used to cut off paddy bar fringe of this rotating shaft, be equipped with more than one with first disk saw blade with second disk saw blade of not establishing recess on the periphery of diameter.

2, shearing device according to claim 1, it is characterized in that, in whole described first and second disk saw blade on being installed on described rotating shaft, being configured on the part that is used to cut off paddy bar stem is first disk saw blade near the blade of this rotating shaft one end, and being configured on the part that is used to cut off paddy bar fringe is second disk saw blade near the blade of this rotating shaft other end.

3, shearing device according to claim 1, it is characterized in that, in whole described first and second disk saw blade on being installed on described rotating shaft, be configured on the part that is used to cut off paddy bar stem, be first disk saw blade near the blade more than two this rotating shaft one end, continuous, be configured on the part that is used to cut off paddy bar fringe, be second disk saw blade near the blade more than two this rotating shaft other end, continuous.

4, according to each described shearing device of claim 1-3, it is characterized in that the cephalolateral margin of the described first disk saw blade recess and posterior lateral margin are the obtuse angle with respect to the angle that direction of rotation surrounded.

5, shearing device according to claim 4 is characterized in that, the posterior lateral margin of described recess constitutes the angle of sweepback with respect to the direction of rotation of described first disk saw blade.

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