CN202713979U - Straw cutting device - Google Patents

Abstract

The utility model provides a straw cutting device, which can perfectly prevent dust from being attached onto a bearing and a rotating shaft. A box side cover (53) and a shaft side cover (54) are arranged on the outer periphery of a support frame (50) of the bearing (51), and the box side cover is fixedly arranged at the inner surface side of a cutting box (40), so the axis of the box side cover and the axis of a rotating shaft (42) are positioned in the same axis position, the shaft side cover and the rotating shaft (42) are integrally, freely and rotatablely connected, and an outer peripheral part (54c) and the box side cover (53) coincide in the radius direction of the rotating shaft (42) and rotate in opposite directions relative to the box side cover (53). A dust discharge opening (55) for discharging the dust from an in-cover space (56) formed around the support frame (50) by the box side cover (53) and the shaft side cover (54) is arranged at the lower part of the box side cover, a rotating component (57) for pulling out dust from the dust discharge opening (55) is arranged in the in-cover space (56), and the rotating component and the rotating shaft (42) integrally and freely rotate.

Description

Straw chopping apparatus

Technical field

The utility model relates to a kind of combine, particularly relates to a kind of straw chopping apparatus of combine.

Background technology

At present, the straw chopping apparatus that has a kind of for example patent documentation 1 to put down in writing.The straw chopping apparatus that patent documentation 1 is put down in writing is provided with cylinder-like body and wheel body in the support outside of the bearing of support cut axle, described cylinder-like body is fixed on the horizontal sidewall of toolbox with its axle center and the state that the axle center that cuts off axle is in concentric, and described wheel body is connected with the cut-out axle with the state one that its peripheral part enters the inboard of described cylinder-like body with relatively rotating freely with rotating freely.

Patent documentation 1:(Japan) JP 2010-99027 communique (Fig. 9)

In order to prevent being attached on the bearing of rotating shaft and supporting rotating shaft at the dust such as stalk bits that the inside of chopping case produces, when adopting above-mentioned prior art, can consider to consist of following dustproof construction.Namely, the case side cover of outside that the mode that is in concentric with the axle center with rotating shaft is positioned at the support of bearing is fixed on the chopping case, peripheral part and case side are covered on the axle side cover one that overlaps on the radial direction of rotating shaft be connected on the rotating shaft with rotating freely, then pass through case side cover and axle side cover with the periphery encirclement of the support of bearing.In this case, owing between the peripheral part of case side cover and axle side cover, form the space, and cover on forming of support on every side by case side cover and axle side and cover interior space, so dust enters space in the cover sometimes from the space between the peripheral part of case side cover and axle side cover, be trapped in space in the cover if enter the dust in space in the cover, then dust still is attached on rotating shaft and the bearing easily.

The utility model content

The purpose of this utility model is to provide a kind of straw chopping apparatus that adheres to that can prevent well dust.

The straw chopping apparatus that the utility model first aspect provides, on driving a rotating shaft that rotates in the pair of rotary shafts that freely is supported on the chopping case, arranging also along the axis direction of a described rotating shaft, one is provided with a plurality of cutters with rotating freely, and on another rotating shaft in a pair of described rotating shaft, arranging also along the axis direction of described another rotating shaft, one is provided with a plurality of supply bodies with rotating freely, the stalk of this straw chopping apparatus after by a plurality of described cutters chopping threshings, described straw chopping apparatus is characterised in that, outside at the support of the bearing that supports a described rotating shaft, be provided with accordingly case side cover and axle side cover with one or two rotating shafts in a pair of described rotating shaft, the state that described case side cover is in concentric with the axle center of its axle center and a described rotating shaft is fixed on the inner face side of described chopping case, described axle side cover covers on the state that overlaps on the radial direction of a described rotating shaft with peripheral part with described case side, be connected with a described rotating shaft one, and this axle side cover rotates relatively with respect to described case side cover with rotating freely.

The straw chopping apparatus that the utility model second aspect provides is on the basis of the straw chopping apparatus of first aspect, in the bottom of described case side cover, be provided with dust from covered on by described case side cover and described axle side described support around the dust discharge opening of space discharge in the cover that forms.

The straw chopping apparatus that the utility model third aspect provides is on the basis of the straw chopping apparatus of second aspect, be provided with the rotary part that dust is transferred to described dust discharge opening in described cover in the space, described rotary part and a described rotating shaft rotate freely integratedly.

The straw chopping apparatus that the utility model fourth aspect provides second or the basis of the straw chopping apparatus of the third aspect on, described dust discharge opening is configured to: the center of described dust discharge opening on the rotating shaft direction of rotation is with respect to the plumb line deflection rotating shaft direction of rotation downstream in the axle center by a described rotating shaft.

The straw chopping apparatus that the utility model the 5th aspect provides second or the basis of the straw chopping apparatus of the third aspect on, described axle side cover constitutes: the peripheral part that described peripheral part is compared described case side cover is positioned at the inboard.

The straw chopping apparatus that the utility model the 6th aspect provides is on the basis of the straw chopping apparatus of fourth aspect, described chopping case is connected with the rear portion of sheller unit, a pair of described rotating shaft is arranged at the fore-and-aft direction of this sheller unit, and with a pair of described rotating shaft in be positioned at this sheller unit rear side a described rotating shaft be provided with accordingly described case side cover and described axle side cover.

The straw chopping apparatus that the utility model the 7th aspect provides is on the basis of the straw chopping apparatus aspect the 6th, be embedded with spring body outside near the outside of the described axle side cover of a described rotating shaft, so that described spring body plays the effect of pressing to a plurality of described cutters or a plurality of described supply body on the axis direction of a described rotating shaft, the spring box of taking in described spring body is connected with described axle side cover one with rotating freely.

The straw chopping apparatus that the utility model eight aspect provides is on the basis of the straw chopping apparatus aspect the 7th, outer circumferential side at a described rotating shaft, be provided with the rotating vane plate with a described rotating shaft one with rotating freely, described rotating vane plate is arranged on and the opposite side of described axle side cover place one side with respect to described spring box, end in the close described spring box side of described rotating vane plate is provided with notch, described spring box enters described notch, and the end face of facing with described notch that described rotating vane plate is assembled into described rotating vane plate and outer peripheral face and the side of described spring box connect.

The straw chopping apparatus that the utility model the 9th aspect provides is on the basis of the straw chopping apparatus of eight aspect, and give prominence to more laterally the end that is positioned at the axis direction outside of a described rotating shaft in the peripheral part of described rotary part than described axle side cover.

The straw chopping apparatus that the utility model the tenth aspect provides is on the basis of the straw chopping apparatus aspect the 9th, and described rotary part is arranged at the position near described peripheral part side between the described peripheral part of the axle center of a described rotating shaft and described axle side cover.

According to the above-mentioned first architectural feature to the third aspect owing to can surround by case side cover and axle side cover the periphery of the support of bearing, thereby can make dust be difficult to enter bearing and near.In addition, cover on being formed with of support on every side by case side cover and axle side and cover interior space, even dust enters space in the cover from the space between the peripheral part that is formed on case side cover and axle side cover, also can be by naturally falling or the dial-out of rotary part makes the dust that enters space in the cover move to the dust discharge opening, and the outer discharge from the dust discharge opening to cover.

Therefore, not only can prevent by the encirclement by case side cover and axle side cover dust enter bearing and near, the space also is difficult to be detained wherein in the cover even dust has entered, thereby can prevent well that dust is attached on rotating shaft and the bearing, can make thus the faults such as the driving that is caused by dust is bad be difficult to occur.

In the utility model, the stalk of discharging after the threshing is imported into cutter and supplies with between the body and shred, shredded stalk from falling between the pair of rotary shafts and discharging, if but the chopping stalk that should discharge hangs over cutter and supplies with on the body, shred then that stalk can and not supply with from cutter that body etc. falls swimmingly and by cutter and supply with body and kick up.But according to the architectural feature of the utility model the 4th to the 5th aspect, therefore the side that the chopping stalk that the dust discharge opening is kicked up with respect to the plumb line deflection in the axle center by rotating shaft moves, also is difficult to enter the dust discharge opening even the chopping stalk kicks up.

Therefore, not only can discharge easily and enter the dust in space in the cover, can also prevent from shredding stalk etc. and enter space in the cover from the dust discharge opening that is used for discharging dust, thereby prevent that well dust is trapped in space in the cover.

According to the architectural feature of the utility model the 6th aspect, the dust discharge opening can be discharged the dust of discharging from the dust discharge opening because of the dial-out of rotary part easily with respect to the plumb line deflection threshing body rear side in the axle center of passing through rotating shaft to threshing body rear.

Therefore, can make the dust of discharging from the chopping case rearward break away from as far as possible and discharge from the threshing body, thereby be difficult to be attached on the threshing body.

Be provided with in the prior art spring body always.Yet, according to the architectural feature of the utility model the 7th aspect, for this spring body is accommodated in the spring box, axle side cover and spring box can be assembled on the rotating shaft in the lump.

Therefore, by spring box being set except preventing that dust is attached on the spring, can also assemble in the lump axle side cover and spring box, thereby improve the efficient of assembling operation.

Architectural feature according to the utility model the 8th to the tenth aspect, for chopping stalk and dust are dispersed so that shred stalk and dust does not enter case side cover and axle side cover, the scope of the outer circumferential side that is positioned at rotating shaft of rotating vane plate is set as the larger scope that the end of a side that is provided with notch of rotating vane plate is covered by spring box, thus, the rotating vane plate can make stalk bits etc. disperse reliably.The outer peripheral face of the end face rotating vane plate and that notch is relative and spring box and side connect and form hardly the space between the outer peripheral face of rotating vane plate and spring box and sides, thereby stalk bits etc. are difficult to stop up between rotating vane plate and the spring box.

Therefore, not only stalk bits are difficult to stop up between rotating vane plate and the spring box, but also the rotating vane plate on a large scale of outer circumferential side that can be by being positioned at rotating shaft makes stalk bits etc. disperse reliably, thereby prevent that well dust from entering the interior space of case.

Description of drawings

Fig. 1 is the end view of expression combine integral body.

Fig. 2 is the vertical view of expression combine integral body.

Fig. 3 is the vertical profile end view of expression sheller unit.

Fig. 4 is the end view of the leading section of expression threshing cylinder.

Fig. 5 is the front view of expression threshing cylinder.

Fig. 6 is the profilograph that the position of liner has been installed in the expression threshing cylinder.

Fig. 7 is the profile of the syndeton of expression liner.

Fig. 8 is the profile of the syndeton of expression liner.

Fig. 9 is the profile of comparative example of the syndeton of expression liner.

Figure 10 is the vertical view of expression stalk conveyer and straw chopping apparatus.

Figure 11 is the end view of expression stalk conveyer and straw chopping apparatus.

Figure 12 is the end view that transports terminal part of expression stalk conveyer.

Figure 13 is the rearview that transports terminal part of expression stalk conveyer.

Figure 14 is the stereogram of expression cover structure.

Figure 15 is the vertical view at position, cutter place in the expression straw chopping apparatus.

Figure 16 is that expression is provided with the supporting construction of rotating shaft of cutter and the profilograph of dustproof construction.

Figure 17 (a) is the end view of expression case side cover, and Figure 17 (b) is the profilograph of expression case side cover.

Figure 18 (a) is the end view of expression axle side cover, and Figure 18 (b) is the profilograph of expression axle side cover.

Figure 19 is the profile of the dustproof unit of expression rotating shaft.

Description of reference numerals

5 sheller units; 40 chopping casees; 42,43 rotating shafts; 47 cutters; 48 supply with body; 50 supports; 51 bearings; 53 casees side covers; 54 axle side covers; The peripheral part of 54c axle side cover; 55 dust discharge openings; Space in 56 covers; 57 rotary parts; 58 rotating vane plates; The 58a notch; The 58b end face; 62 spring boxs; The outer peripheral face of 62a spring box; The side of 62b spring box; 64 spring bodies; A rotating shaft direction of rotation; The center of C dust discharge opening; The axle center of P rotating shaft; The H plumb line.

Embodiment

Below based on figure embodiment of the present utility model is described, illustrate that the straw chopping apparatus that the utility model is related is installed in the situation on the combine.

Fig. 1 is the end view of expression combine integral body.Fig. 2 is the vertical view of expression combine integral body.As depicted in figs. 1 and 2, combine constitutes by crawler travel device 1 automatic running, and comprise the body that travels that riding-type Drive Section 2 is installed, the section that extracts 4 that is connected with the front portion of the organism frame 3 of the body that travels, the rear portion side of organism frame 3 along sheller unit 5 and the grain collecting box 6 of the transversely arranged setting of body, be connected to the straw chopping apparatus 7 at the rear portion of sheller unit 5.This combine carries out the harvesting of paddy and wheat etc.

That is to say, extracting section 4 has from the framework 4a of the section that extracts that organism frame 3 easy on and off swingingly extend, this extracts the framework 4a of section and carries out swinging operation by 8 pairs of lifting hydraulic cylinders, is arranged on minute standing grain parts 4b lifting between the decline job position that drops to Near Ground and the non-job position of rising that raises facing up from ground of the leading section of the section of extracting 4.If make the section of extracting 4 drop to the decline job position and the body that travels travelled, then extract section 4 and will hold up the standing grain path as the upright paddy stalk introducing that extracts object by minute standing grain parts 4b, and when will be introduced into the upright paddy stalk of holding up the standing grain path and prop up by grain lifter 4c, the device 4d that extracts by the hairclipper type extracts, and will extract the paddy stalk and supply with to sheller unit 5 by feedway 4e.The paddy stalk that extracts that 5 pairs of sheller units supply to carries out the threshing processing and the grain after the threshing is sent into grain collecting box 6.7 pairs of straw chopping apparatus shred processing from the stalk after the threshing of sheller unit 5 in the shaft direction.

The below describes sheller unit 5.

Fig. 3 is the vertical profile end view of expression sheller unit 5.As shown in Figure 3, sheller unit 5 comprises the 5A of threshing section and the 5B of screening section, and the described threshing 5A of section has the threshing chamber 11 of the upper interior that is formed on threshing body 10, and the described screening 5B of section has the oscillating riddle screening device 12 of the below that is arranged on threshing chamber 11.

The 5A of threshing section transports with side and to the rear of threshing body 10 by the stem that extracts the paddy stalk of threshing carrier chain 5a clamping from the feedway 4e that extracts section 4; extract fringe tip side direction threshing chamber 11 supplies of paddy stalk and carry out the threshing processing by threshing cylinder 13 and the screen cloth 14 that rotates described; grain after the threshing is fallen, by the stalk of threshing carrier chain 5a after with threshing sending dirt mouth 15 to transport and supply with to stalk conveyer 20 from the rearward end that is positioned at threshing chamber 11 from screen cloth 14.

The 5B of screening section catches the handled things such as grain after the threshing that falls from screen cloth 14 by oscillating riddle screening device 12; the pneumatic jig that the screening wind that produces by the cleaning fan 16 that swing is screened and utilization is supplied with to threshing body rear that is undertaken by described oscillating riddle screening device 12 carries out selects to screen grain and dust; make the single treatment thing fall to helix transporting device 17 one time; make the after-treatment thing fall to secondary spiral conveying plant 18; by dust exhausting fan 19 dust is discharged to the rear of threshing body 10 via the chopping case 40 of straw chopping apparatus 7, but also make the together below by dust exhausting fan 19 and discharge to the rear of threshing body 10 from the dust-exhausting port 10a at the rear portion that is arranged on threshing body 10 of dust and screening wind.

The below describes threshing cylinder 13.

Fig. 4 is the end view of the leading section of expression threshing cylinder 13.Fig. 5 is the front view of expression threshing cylinder 13.As shown in Figure 4 and Figure 5, having whole tooth (Zheng そ Dentistry) leading section of 30 threshing cylinder 13 has four liners (ラ イ Na) 32, and described four liners 32 are arranged the face side that is installed on the threshing cylinder main body 31 that consists of threshing cylinder 13 along the circumferencial direction of threshing cylinder.Fig. 6 is the profilograph that the position of liner 32 has been installed in the expression threshing cylinder 13.As shown in Figure 6, liner 32 is made of the crooked metal sheet along the lateral surface bending forming of threshing cylinder main body 31.

Fig. 7 and Fig. 8 are a pair of liner 32 of expression adjacency, the profile of 32 syndeton.Threshing cylinder 13 is driven in rotation along direction of rotation F shown in Figure 7.The a pair of liner 32,32 of adjacency is arranged among the liner 32a in threshing cylinder direction of rotation downstream the face side overlaid near the liner 32b of the end of threshing cylinder direction of rotation upstream side and threshing cylinder direction of rotation upstream side.The position 32s of the liner 32b of leap threshing cylinder direction of rotation upstream side and threshing cylinder main body 31 forms the stage portion at the downward inclination angle with mitigation among the liner 32a in threshing cylinder direction of rotation downstream at the cross sectional shape along the threshing cylinder radial direction, so that from the equitant part W of liner 32b of threshing cylinder direction of rotation upstream side with the downward inclination angle of relaxing drop to threshing cylinder main body 31 and and the lateral surface of threshing cylinder main body 31 connect, thereby be difficult at a pair of liner 32 that connects adjacency, the abrasion that collision because of grain causes occur on 32 the stage portion.That is to say, Fig. 9 is a pair of liner 32 of expression adjacency, the profile of the comparative structure at 32 positions that link to each other, as shown in Figure 9, the position 32s that crosses over the liner 32b of threshing cylinder direction of rotation upstream side and threshing cylinder main body 31 among the liner 32a of threshing cylinder direction of rotation lower side the cross sectional shape along the threshing cylinder radial direction form for drop to the steep angle that dips down from the equitant part W of liner 32b with threshing cylinder direction of rotation upstream side threshing cylinder main body 31 and and the situation of the stage portion with steep downward inclination angle that connects of the lateral surface of threshing cylinder main body 31 under, a pair of liner 32 of adjacency, 32 stage portion that link to each other are subject to the collision of grain and wear and tear in advance.

The below describes stalk conveyer 20.

As shown in Figure 10 and Figure 11; stalk conveyer 20 has ring-type rotation conveyer chain 21 and track 22 is transported in clamping; described ring-type is rotated conveyer chain 21 extends to threshing body 10 from the cross side that transports terminal part of threshing carrier chain 5a rear portion; described clamping is transported track 22 and is rotated the below that conveyer chain 21 is positioned at ring-type rotation conveyer chain 21 along ring-type; the stem of the stalk after this stalk conveyer 20 rotates by ring-type that conveyer chain 21 and clamping transport that track 22 is accepted and transports the threshing that is transported to from threshing chamber 11 by threshing carrier chain 5a to the clamping of sheller unit rear is with side; and the rear side from the outlet 10b at the rear portion that is positioned at threshing body 10 to threshing body 10 transports, and makes on its chopping case 40 that drops to straw chopping apparatus 7.

Figure 12 is the end view that transports terminal part of expression stalk conveyer 20.The end side of transporting that track 22 is transported in clamping is supported on the support 23 via the support bar 24 on the threshing body above-below direction, and described support 23 is fixed on the framework 5b of threshing body 10 via carriage 5c.Support bar 24 slides up and down on the axle sleeve 23a that freely is supported on support 23.The mode of transporting track 22 on the upper end of support bar 24 to connect clamping is provided with connecting portion 24a, between this connecting portion 24a and support 23, dispose the spring 25 that is installed on the support bar 24,25 pairs of support bar 24 application of forces of this spring are transported track 22 application of forces to clamping so that it rotates conveyer chain 21 risings to ring-type thus so that it rises with respect to support 23.

Such as Figure 12, Figure 13 and shown in Figure 14; clamping transport track 22 transport terminal part below be provided with the pair of right and left master and cover 26a, 26b and an assist shroud 27; described pair of right and left master covers between the body transverse frame 41 of transverse frame 5b that 26a, 26b and assist shroud 27 cover the threshing body 10 that supports straw chopping apparatus 7 and straw chopping apparatus 7, falls into the position that the rotating shaft 43 that shreds the ratio front side in the case is positioned at the front side to prevent long stalk etc.

Pair of right and left master covers near the main cover 26a that is positioned at the left side among 26a, the 26b strides the left end that is set to chopping case 40 from the below of transporting terminal part that track 22 is transported in clamping.The end of the rear end side of the main cover 26a in left side and the framework 41 of straw chopping apparatus 7 are connected, and the main cover 26a in left side forwards extends from the state of framework 41 with cantilever.Pair of right and left master covers near the main cover 26b that is positioned at the right side among 26a, the 26b strides the right-hand member that is set to chopping case 40 from the below of transporting terminal part that track 22 is transported in clamping.The rear end side of the main cover 26b on right side is connected with support 28, and the main cover 26b on right side forwards extends from the state of support 28 with cantilever.Support 28 is installed on the framework 41 of straw chopping apparatus 7.Main lateral ends of covering 26a in the left side is provided with notch 26c, the amount of the stalk when rotate the threshing that conveyer chain 21 transports by ring-type after makes greatly clamping transport track 22 and ring-type and rotates conveyer chain 21 when separately and significantly descending, and this notch 26c can make the main cover 26a in the connecting portion 24a discord left side of support bar 24 contact and drop to the below of the main cover 26a in left side.

Assist shroud 27 is supported on the support 29, and described support 29 is arranged on the framework 5b of threshing body 10.Be provided with notch 27a in assist shroud 27, be interspersed with the position that spring 25 is installed of support bar 24 among the described notch 27a.It is less than the transverse width of the notch 26c of the main cover 26a in left side that the notch 27a of assist shroud 27 forms its transverse width, assist shroud 27 is arranged on highly low the arranging on the height that arrange than the main cover 26a in left side, connects so that the connecting portion 24a of support bar 24 drops to the connecting portion 24a that also gets along well when minimum.That is to say, even fall on main cover 26a, the 26b stalk its towards the notch 26c that becomes the main cover 26a that vertically enters the left side, assist shroud 27 also can catch these stalks in order to avoid it drops to chopping case 40 inside, and the stalk that guiding is caught makes it drop between the pair of rotary shafts 42,43 of chopping case 40 inside by the notch 26d that the master who is arranged at the left side covers the rear end side of 26a.

The below describes straw chopping apparatus 7.

As shown in Figure 10 and Figure 11, straw chopping apparatus 7 has the chopping case 40 of the After-Body that is connected to sheller unit 5, is arranged on the pair of rotary shafts 42,43 and be arranged on the driving mechanism 44 of the lateral outer side of chopping case 40 of chopping case 40 inside with rotating freely.

Be arranged at the chopping case 40 top stalk input port 45 below, pair of rotary shafts 42,43 on the sheller unit fore-and-aft direction with the regulation the interval separate arrangement, and be supported on with rotating freely the chopping case 40 about sidewall 46 on.The rotating shaft 42 that is positioned at the sheller unit rear side in pair of rotary shafts 42,43 arranges the cutter 47 of a plurality of collar plate shapes, and described a plurality of cutters 47 separate spread configuration with the interval of stipulating and rotate freely with being integral on the axis direction of rotating shaft 42; The rotating shaft 43 that is positioned at the sheller unit front side in pair of rotary shafts 42,43 arranges the supply body 48 of a plurality of collar plate shapes, and described a plurality of supply bodies 48 separate spread configuration with the interval of stipulating and rotate freely with being integral on the axis direction of rotating shaft 43.

Driving mechanism 44 will be passed to pair of rotary shafts 42,43 after sheller unit 5 transmits next driving force speed change, thereby pair of rotary shafts 42,43 drives rotation according to direction of rotation A shown in Figure 11, B, and the rotating shaft 42 that is provided with cutter 47 is compared and is provided with rotating shaft 43 High Rotation Speeds of supplying with body 48.

Therefore, straw chopping apparatus 7 covers 49 switching stalk input ports 45 by utilizing to swing, come between long stalk discharge mode and chopping discharge mode, to switch, described long stalk discharge mode refers to not shred from the stalk after the threshing of stalk conveyer 20 and direct mode of discharging long stalk, and described chopping discharge mode refers to shred the rear mode of discharging of processing from the stalk after the threshing of stalk conveyer 20.

That is to say, when when the swing lid is carried out shutoff operation stalk input port 45 being closed, the whereabouts guiding that drops to the stalk swing lid 49 in off position after the threshing of chopping on the case 40 by stalk conveyer 20 is lower, drops to the rear of sheller unit 5 from chopping case 40.

When the swing lid is carried out opening operation stalk input port 45 being opened, the stalk that drops to after the threshing of chopping on the case 40 by stalk conveyer 20 drops to chopping case 40 inside from stalk input port 45, by along the supply body 48 of direction of rotation B rotation and the stalk will drop to the threshing of chopping case 40 inside along the cutter 47 of direction of rotation A rotation after dial in and supply with between body 48 and the cutter 47, and shred in stalk body direction by a plurality of cutters 47, make the chopping stalk from pair of rotary shafts 42, fall between 43, and drop to the rear of sheller unit 5 from the outlet that is arranged on chopping case 40 bottoms.

Figure 15 is the vertical view at the position, cutter 47 place of expression straw chopping apparatus 7.Figure 16 is the profilograph of supporting construction that expression is provided with the rotating shaft 42 of cutter 47.As shown in figure 16, the external screw thread cylinder is installed to form outer peripheral face as the connection axial region 42a of cylindrical shape in the end of the lead screw shaft of the rotating shaft 42 that is provided with cutter 47, and this connection axial region 42a is supported on the bearing 51 by the axle collar 52 with rotating freely, and described bearing 51 is installed on the cross wall 46 of chopping case 40 by support 50.

The below describes dustproof construction.

As shown in figure 16, dustproof unit 60 has: the bowl-shape case side cover 53 that is fixed on cross wall 46 inner face side of chopping case 40, be embedded in the axle side cover 54 on the connection axial region 42a of rotating shaft 42 outward, be arranged on the dust discharge opening 55 of the bottom of case side cover 53, be arranged on the rotary part 57 in the space 56 in the cover that forms around the support 50 by case side cover 53 and axle side cover 54, the a pair of rotating vane plate 58 of outside scattering device around rotating shaft 42 at axle side cover 54,58, this dustproof unit 60 prevents that stalk bits etc. from adhering to or being wrapped on the connection axial region 42a that bearing 51 is connected with rotating shaft.

The outer peripheral face from support 50 that case side cover 53 is positioned at the outside of support 50 leaves the position of predetermined distance, and the axle center of its axle center and rotating shaft 42 is in concentric.

Figure 17 (a) is the end view of expression case side cover 53.Figure 17 (b) is the profilograph of expression case side cover 53.Such as Figure 17 (a), 17(b) and shown in Figure 16, have a distolateral discoid installing plate 53a who is integrally formed in case side cover 53 at case side cover 53.Be provided for the axis hole 53b of the connection axial region 42a of interspersed rotating shaft 42 at installing plate 53a, and support 50 is connected on the installing plate 53a.As shown in figure 16, by attachment screw 61 installing plate 53a and support 50 are fastened on the inner face side of the cross wall 46 of chopping case 40 jointly, case side cover 53 is fixed on the chopping case 40 thus.

Figure 18 (a) is the end view of expression axle side cover 54, and Figure 18 (b) is the profilograph of expression axle side cover.Such as Figure 18 (a), Figure 18 (b) and shown in Figure 16, axle side cover 54 has the discoid horizontal cover 54b of section and peripheral part 54c cylindraceous, the central part of the described horizontal cover 54b of section is provided with the axis hole 54a for the connection axial region 42a of interspersed rotating shaft 42, and described peripheral part 54c extends to case side cover 53 from the peripheral end of the described horizontal cover 54b of section.Connect a pair of rotating vane plate 58,58 and spring box 62 at the exterior side of the horizontal cover 54b of section, the mounting cylinder axle 63 that is made of the hexagonal cylinder is connected on whole a pair of rotating vane plate 58,58 the interior axle side.As shown in figure 16, because mounting cylinder axle 63 outer being embedded on the hexagonal axial region 42b of rotating shaft 42, so axle side cover 54 overlaps at the radial direction of rotating shaft 42 with case side cover 53 with peripheral part 54c, and the state that the axle center of the axle center of peripheral part 54c and rotating shaft 42 is in concentric is supported on the rotating shaft 42.Because hexagonal configuration and the hexagonal axial region 42b of rotating shaft 42 of mounting cylinder axle 63 by inner circumferential surface snaps into integratedly and rotates freely, and rotates freely so axle side cover 54 is connected with rotating shaft 42 with being integral.

Because the hexagonal axial region 42b of mounting cylinder axle 63 and rotating shaft 42 snaps into integratedly and rotates freely, thus a pair of rotating vane plate 58,58 and spring box 62 and rotating shaft 42 rotate integratedly.

As shown in figure 18, the rotary parts 57 that are arranged in the interior space 56 of cover are fixed on the horizontal cover 54b of section of axle side cover 54, and rotate integratedly with rotating shaft 42.From the profilograph of axle side cover 54, rotary part 57 be shaped as rectangle, and form than the long elongated shape of the length of peripheral part 54c on the axis of rotation direction, so that rotary part 57 is outstanding laterally from the end 54d of the peripheral part 54c of axle side cover 54.From the axis direction of rotating shaft 42, rotary part 57 is between mounting cylinder section 63 and peripheral part 54c and near the position of peripheral part 54c.Rotary part 57 is provided in and forms space S between rotary part 57 and the peripheral part 54c.Axis of rotation direction along axle side cover 54 sees that rotary part 57 forms band plate-like, and disposes along the radial direction of axle side cover 54.

Therefore, in dustproof unit 60, are connected with axle side cover by case side cover 53 and surround support 50 and to be connected axial region 42a, and by the rotating vane plate 58 that is rotated operation by rotating shaft 42 the chopping case 40 inner dust such as stalk bits that produce are dispersed to the outer circumferential side of case side cover 53 and axle side cover 54, and, when dust enters in the cover space 56 from the peripheral part 54c of axle side cover 54 and the space between the case side cover 53, the dust that enters is transferred to by free-falling or by the rotary part 57 that is rotated operation by rotating shaft 42 and is moved to dust discharge opening 55, and be discharged to outside the cover from dust discharge opening 55, adhere to or be wrapped on the connection axial region 42a of bearing 51 and rotating shaft 42 at the chopping case 40 inner dust that produce preventing.The peripheral part 54c of the axle side cover 54 of rotation is owing to enter the inboard of fixing case side cover 53, and the stalk bits that therefore caused by the axle side cover 54 that rotates are difficult to be involved in space 56 in the cover.

Shown in Figure 17 (a), be provided with dust discharge opening 55 at case side cover 53, this dust discharge opening 55 is arranged to the plumb line H deflection rotating shaft direction of rotation downstream that its center C on rotating shaft direction of rotation A is passed through the axle center P of rotating shaft 42 relatively, make the chopping stalk and the stalk bits that hang on the cutter 47 and risen be difficult to enter dust discharge opening 55, and make and be rotated that parts 57 are transferred to and rearward discharge easily from the dust that dust discharge opening 55 is discharged.The position of the case side cover 53 that dust discharge opening 55 leaves slightly from the plumb line H of the relative axle center P by rotating shaft 42 to rotating shaft direction of rotation upstream side is striden to be set to and is left 90 ° or 90 ° the position of case side cover 53 roughly from this position to rotating shaft direction of rotation downstream.

Spring box 62 is taken near the outside that is arranged on axle side cover 54 and is embedded in the spring body 64,64. of a pair of dish on the rotating shaft 42 outward

A pair of spring body 64,64 is arranged on mounting cylinder axle 63 and consists of between the screwed part that connects axial region 42a, this a pair of spring body 64,64 plays press effect as the reaction force via 63 pairs of packing ring spares 65 of mounting cylinder axle take screwed part, thus each cutter 47 is reached the pressing operation that carries out the packing ring spare 67 on the end of a side that is connected with driving mechanism 44 that is installed in rotating shaft 42 at the pad 66 between the cutter, each cutter 47 is positioned.

Such as Figure 16 and shown in Figure 180, be provided with notch 58a in the end of the side at spring box 62 places of rotating vane plate 58, spring box 62 enters in the described notch 58.Rotating vane plate 58 is assembled into: connect with position 58c parallel with rotating shaft 42 among the end face 58b that notch 58a faces and the outer peripheral face 62c of spring box 62, and and the end face 58b that faces of notch 58a in and the side 62d of the position 58d that intersects of rotating shaft 42 and spring box 62 connect and between this rotating vane plate 58 and spring box 62, form hardly the space.

Figure 19 is the profile that is illustrated in the dustproof unit 70 that arranges on the end of a side that is connected with driving mechanism 44 of rotating shaft 42.As shown in figure 19, this dustproof unit 70 has bowl-shape case side cover 73 and axle side cover 74, the support 72 of described case side cover 73 and bearing 71 is shaped integratedly and is fixed on the cross wall 46 of chopping case 40, and described axle side cover 74 is supported on the rotating shaft 42 by rotating vane plate 58 one with rotating freely.The peripheral part 74a of axle side cover 74 is to be positioned at the outside of case side cover 73 with the state that case side cover 73 overlaps at the radial direction of rotating shaft 42.

[other embodiment]

(1) shows in the above-described embodiment the example that is provided with bowl-shape case side cover 53, but also can adopt the case side cover of the ring-type of cylinder beyond bowl-shape, the various shapes such as coniform.

(2) structure can also be connected the identical dustproof unit of structure with dustproof unit and be arranged on the end of the side that being connected with driving mechanism of the rotating shaft 42 that is provided with cutter 47 connect, described dustproof unit 60 is arranged on the end of the opposite side of the side that connects with being connected with driving mechanism of the rotating shaft 42 that is provided with cutter 47.And, described structure and the identical dustproof unit of dustproof unit 60 structures can also be arranged on end being provided with the rotating shaft 43 of supplying with body 48 or two ends.

(3) the peripheral part 54c that shows in the above-described embodiment axle side cover 54 to be being positioned at the example of the inboard of case side cover 73 with case side cover 53 at the state that the radial direction of rotating shaft 42 overlaps, but the peripheral part 54c that also can adopt axle side cover 54 is to be positioned at the structure in the outside of case side cover 73 with the state that case side cover 53 overlaps at the radial direction of rotating shaft 42.

(4) In the above embodiment shows the dust exhaust opening 55 of a case side cover 53 of , so that the dust discharge opening 55 in the rotation axis direction A of the center of rotation C, the rotary shaft 42 with respect to the axial center P of the lead H biased vertical rotation axis direction A of the mode setting examples, but can also be used to make the dust discharge opening 55 in the rotation axis direction A of the center of rotation C, the rotary shaft 42 in the axial center P of the plumb line H on the way, set the tank side of the dust cover 53 opening 55 structure, or to make use of the dust discharge opening 55 in the rotational axis direction A relative to the center C of the rotary shaft 42, the vertical axis P line H bias, and the rotation shaft direction opposite to direction A set-tank side of the dust cover 53 opening 55, structures.

(5) rotary parts 57 that show in the above-described embodiment by being configured in the interior space 56 of cover are arranged on the upper example that makes rotary part 57 and the rotation of rotating shaft 42 one of the horizontal cover 54b of section of axle side cover 54, but also rotary part 57 can be arranged on the peripheral part 54c of rotating shaft 42 or axle side cover 54.

(6) show in the above-described embodiment from the axis of rotation direction of axle side cover 54 and see that rotary part 57 forms the example of band plate-like, but also can form curved shape.

(7) show in the above-described embodiment the example that rotary part 57 is set along the radial direction of axle side cover 54, but the mode that also can tilt with the radial direction of relative axle side cover 54 arranges rotary part 57.

(8) show in the above-described embodiment the example of the rotary part 57 that adopts band plate-like, but also can adopt by bars such as pole, square rods, wire rod, the rotary part 57 that the different parts such as angle steel material consist of.

(9) in above-mentioned true mode, the example that a rotary part 57 is set has been shown, but also plural rotary part can be set.

(10) side who shows in the above-described embodiment in pair of rotary shafts 42,43 arranges cutter 47, and the opposing party the example of supplying with body 48 is set, but also can adopt the supply body with tool function as supplying with body 48.

[industrial applicibility]

The utility model can also be applied to the straw chopping apparatus that is connected with the sheller unit of fixed except the sheller unit of all feeding-in combine.

Claims (10)

1. straw chopping apparatus, freely be supported on the pair of rotary shafts (42 of shredding on the case (40) in the driving rotation, 43) on the rotating shaft (42) in, arranging also along the axis direction of a described rotating shaft (42), one is provided with a plurality of cutters (47) with rotating freely, and at a pair of described rotating shaft (42,43) on another rotating shaft (43) in, arranging also along the axis direction of described another rotating shaft (43), one is provided with a plurality of supply bodies (48) with rotating freely, the stalk of this straw chopping apparatus after by a plurality of described cutters (47) choppings threshing, described straw chopping apparatus is characterised in that

Outside at the support (50) of the bearing (51) that supports a described rotating shaft (42), with a pair of described rotating shaft (42,43) one or two rotating shafts in are provided with case side cover (53) and axle side cover (54) accordingly, the state that described case side cover (53) is in concentric with the axle center of its axle center and a described rotating shaft (42) is fixed on the inner face side of described chopping case (40), the state that described axle side cover (54) overlaps at the radial direction of a described rotating shaft (42) with peripheral part (54c) and described case side cover (53), be connected with a described rotating shaft (42) one, and this axle side cover (54) is with respect to the relative rotation of described case side cover (53) with rotating freely.

2. straw chopping apparatus as claimed in claim 1, it is characterized in that, in the bottom of described case side cover (53), be provided with the dust discharge opening (55) of dust from space (56) discharge in the cover that forms around the described support (50) by described case side cover (53) and described axle side cover (54).

3. straw chopping apparatus as claimed in claim 2, it is characterized in that, be provided with the rotary part (57) that dust is transferred to described dust discharge opening (55) in the space in described cover (56), described rotary part (57) and a described rotating shaft (42) rotate freely integratedly.

4. straw chopping apparatus as claimed in claim 2 or claim 3, it is characterized in that, described dust discharge opening (55) is configured to: the center (C) of described dust discharge opening (55) on rotating shaft direction of rotation (A) is with respect to plumb line (H) the deflection rotating shaft direction of rotation downstream in the axle center (P) by a described rotating shaft (42).

5. straw chopping apparatus as claimed in claim 2 or claim 3, it is characterized in that described axle side cover (54) constitutes: the peripheral part that described peripheral part (54c) is compared described case side cover (53) is positioned at the inboard.

6. straw chopping apparatus as claimed in claim 4, it is characterized in that, described chopping case (40) is connected with the rear portion of sheller unit (5), a pair of described rotating shaft (42,43) is arranged at the fore-and-aft direction of this sheller unit (5), and with a pair of described rotating shaft (42,43) in be positioned at this sheller unit (5) rear side a described rotating shaft (42) be provided with accordingly described case side cover (53) and described axle side cover (54).

7. straw chopping apparatus as claimed in claim 6, it is characterized in that, be embedded with spring body (64) outside near the outside of the described axle side cover (54) of a described rotating shaft (42), so that described spring body (64) plays the effect of pressing to a plurality of described cutters (47) or a plurality of described supply bodies (48) on the axis direction of a described rotating shaft (42)

The spring box (62) of taking in described spring body (64) is connected with described axle side cover (54) one with rotating freely.

8. straw chopping apparatus as claimed in claim 7, it is characterized in that, outer circumferential side at a described rotating shaft (42), be provided with rotating vane plate (58) with a described rotating shaft (42) one with rotating freely, described rotating vane plate (58) is arranged on and the opposite side of described axle side cover (54) place one side with respect to described spring box (62)

End in the close described spring box side of described rotating vane plate (58) is provided with notch (58a), and described spring box (62) enters described notch (58a),

The end face (58b) of facing with described notch (58a) that described rotating vane plate (58) is assembled into described rotating vane plate (58) connects with outer peripheral face (62a) and side (62b) of described spring box (62).

9. straw chopping apparatus as claimed in claim 8, it is characterized in that the end (54d) that is positioned at the axis direction outside of a described rotating shaft (42) in the peripheral part (54c) of described rotary part (57) than described axle side cover (54) is given prominence to more laterally.

10. straw chopping apparatus as claimed in claim 9, it is characterized in that described rotary part (57) is arranged at the position near described peripheral part (54c) side between the described peripheral part (54c) of the axle center of a described rotating shaft (42) and described axle side cover (54).

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