CN108934488A - Sheller unit - Google Patents

Abstract

The present invention provides a kind of sheller unit that the multiple dictyosomes for constituting bearing net can be easily fixed on to threshing chamber frame.The sheller unit has: the threshing chamber frame (21) of threshing chamber, formation threshing chamber equipped with thrashing cylinder and the bearing net (3) being arranged below thrashing cylinder, bearing net (3) is by the circumferencial direction segmentation along thrashing cylinder, with the multiple dictyosomes (31) being sequentially inserted into from a side of threshing chamber, multiple dictyosomes (31) are separately fixed on threshing chamber frame (21).

Description

Sheller unit

Technical field

The present invention relates to sheller units.

Background technique

(1) it is used as above-mentioned sheller unit, such as has sheller unit described in known patent document 1.With regard to 1 institute of patent document For the sheller unit stated, bearing net is divided into three parts by the circumferencial direction along thrashing cylinder, and there are three dictyosomes (in document for tool " the first segmentation bearing net ", " the second segmentation bearing net ", " third segmentation bearing net ").Threshing described in patent document 1 is filled For setting, according to the sequence being sequentially inserted into from direction of insertion is most inboard, three dictyosomes are sequentially inserted into from the left side of threshing chamber In be located at direction of insertion it is most inboard third segmentation bearing net, second segmentation bearing net, first segmentation bearing net.Then, spiral shell is used The end and first that knot second is divided in bearing net on the outside of direction of insertion is tethered to divide in bearing net in direction of insertion The end of side, blending bolt divide the end being located on the outside of direction of insertion in bearing net for first and are fixed on threshing chamber frame.

(2) it is used as above-mentioned thrashing cylinder, such as has thrashing cylinder described in known patent document 2.With regard to described in patent document 2 For thrashing cylinder, it is (convex in document that the first support plate is equipped in the front end side of thrashing cylinder axis (the thrashing cylinder fulcrum in document) Edge part), the second support plate (vibrating part in document) is equipped in the rear end portion side of thrashing cylinder axis.Also, for patent text For thrashing cylinder described in offering 2, on the circumference centered on thrashing cylinder axis, it is configured with more bar-like members.Bar-like member Front end is supported on the first support plate, and the rear end of bar-like member is supported on the second support plate.In addition, for thrashing cylinder axis and Speech is equipped with approximate circle spacing board (vibrating part in document) between the first support plate and the second support plate.Spacing board Support the part between the front end and rear end of more bar-like members.As a result, since more bar-like members are not only by first Board and the bearing of the second support plate, are also supported by spacing board, this improves the intensity of thrashing cylinder.

(existing technical literature)

(patent document)

Patent document 1: Japanese invention patent application Publication " Japanese Laid-Open Patent Publication 11-155347 " bulletin

Patent document 2: Japanese invention patent application Publication " special open 2009-207360 " bulletin

Summary of the invention

(the problem to be solved in the present invention)

(1) problem corresponding with background technique (1) is as follows.

For the sheller unit described in the patent document 1, the second segmentation bearing net and third segmentation bearing net are via first Segmentation bearing net is fixed on threshing chamber frame.Therefore, after bearing net and third segmentation bearing net are divided in insertion second, with spiral shell Before first segmentation bearing net is fixed on threshing chamber frame by bolt, the second segmentation bearing net and third segmentation bearing net and unlocked In threshing chamber frame, it is therefore desirable to divide bearing net with the second segmentation bearing net of hand bearing and third.It uses as described above on one side First segmentation bearing net is fixed on threshing chamber frame with bolt on one side by the second segmentation bearing net of hand bearing and third segmentation bearing net The work of frame is not easy to.

The present invention is exactly to complete in view of the foregoing, and its purpose is to provide a kind of sheller unit, the sheller units The multiple dictyosomes for being used to constitute bearing net can be easily fixed at threshing chamber frame.

(2) problem corresponding with background technique (2) is as follows.

For the thrashing cylinder described in the patent document 2, by making bar-like member be entrenched in the chimeric recess portion of spacing board periphery, Bar-like member is set to be supported on spacing board.Therefore, the diameter of spacing board than in the section of bar-like member closest to the portion of thrashing cylinder axis The diameter of the rotary track divided is big.Therefore, because the enlargement of spacing board, causes thrashing cylinder weight to increase.Accordingly, for having For the combine harvester of this thrashing cylinder, fears are entertained that since the increase of threshing load leads to the increase of fuel cost.In addition, The increase for leading to the material for constituting spacing board due to the enlargement of spacing board, thus causes cost to improve.

The present invention is exactly to complete in view of the foregoing, and its purpose is to provide a kind of thrashing cylinders, which can By the miniaturization of spacing board so that the weight of thrashing cylinder reduces, and can reduce cost.

(solution to problem)

(1) solution corresponding with problem (1) is as follows.

It is a feature of the present invention that have the threshing chamber equipped with thrashing cylinder, the threshing chamber frame for forming the threshing chamber, with And the bearing net of the lower section of the thrashing cylinder is set, by the circumferencial direction segmentation along the thrashing cylinder, this holds the bearing net Connecing net has the multiple dictyosomes being sequentially inserted into from a side of the threshing chamber, and multiple dictyosomes are separately fixed on institute State threshing chamber frame.

It can be easily by the way that multiple dictyosomes are separately fixed on threshing chamber frame according to above structure feature Multiple dictyosomes are fixed on threshing chamber frame.That is, it is not necessary to carry out supporting a net in multiple dictyosomes with hand on one side Other dictyosomes are fixed on the operation of threshing chamber frame by body on one side.

In the present invention, preferably, being inserted for being located at the most inboard dictyosome of direction of insertion in multiple dictyosomes Enter the end on the outside of direction and is fixed on the threshing chamber frame.

According to above structure feature, since hand easily can be reached on the outside of direction of insertion from a side of threshing chamber End, therefore, even if the most inboard dictyosome of direction of insertion, also can easily be fixed on by the dictyosome most inboard for direction of insertion Threshing chamber frame.

In the present invention, it preferably, for two dictyosomes adjacent in an insertion direction in multiple dictyosomes, inserts Enter the end being located on the outside of direction of insertion in the dictyosome of direction inboard and the threshing chamber frame is fixed on by the first fixing piece, inserts Enter in the dictyosome on the outside of direction positioned at direction of insertion inboard end in the dictyosome of direction of insertion inboard positioned at be inserted into In the state of end overlapping on the outside of direction, with the end one being located on the outside of direction of insertion in the dictyosome of the direction of insertion inboard It rises and the threshing chamber frame is fixed on by the second fixing piece, be located in direction of insertion in the dictyosome on the outside of the direction of insertion The end of side is formed with the recess portion bigger than first fixing piece.

For two adjacent in an insertion direction dictyosomes, firstly, being located at insertion side in the dictyosome of direction of insertion inboard End outward is fixed on threshing chamber frame by the first fixing piece.Then, insertion is located in the dictyosome on the outside of direction of insertion The end of direction inboard is and slotting in the state of Chong Die with the end being located on the outside of direction of insertion in the dictyosome of direction of insertion inboard Enter the end being located in the dictyosome of direction inboard on the outside of direction of insertion to pass through the second fixing piece together and be fixed on threshing chamber frame.This When, according to above structure feature, the end by being located at direction of insertion inboard in the dictyosome on the outside of direction of insertion, which is formed, compares the The big recess portion of one fixing piece, even if so that being located at end and the direction of insertion of direction of insertion inboard in dictyosome on the outside of direction of insertion It is located at the end on the outside of direction of insertion in inboard dictyosome to be overlapped, direction of insertion inboard is located in the dictyosome on the outside of direction of insertion End will not interfere the first fixing piece.

In the present invention, preferably, the end for being located at direction of insertion inboard in dictyosome on the outside of the direction of insertion leads to Crossing second fixing piece makes multiple positions of the end be fixed on the threshing chamber frame, the net in the direction of insertion inboard Dictyosome on the outside of body and the direction of insertion is fixed in the state of the threshing chamber frame, the dictyosome on the outside of the direction of insertion In be located at the end of direction of insertion inboard and pass through multiple fixed positions for being fixed of second fixing piece in the thrashing cylinder Axis direction on, pass through institute from the end being located in the dictyosome that two sides clip the direction of insertion inboard on the outside of direction of insertion State the fixed position that the first fixing piece is fixed.

According to above structure feature, by that can expand between the multiple fixed positions fixed by the second fixing piece Every therefore, can be steadily by the net on the outside of the dictyosome of direction of insertion inboard and direction of insertion on the axis direction of thrashing cylinder Body is fixed on threshing chamber frame.

In the present invention, preferably, multiple dictyosomes being capable of mutual dual-purpose.

Cost can reduce by the common of component according to above structure feature.

In the present invention, just each in multiple dictyosomes preferably, multiple dictyosomes are made of same parts For a, the fixed position configuration of the end of fixed position and the direction of insertion inboard of the end on the outside of direction of insertion is described de- On different location on the axis direction of grain cylinder.

According to above structure feature, though by the end of end and direction of insertion inboard on the outside of direction of insertion overturn State underthrust enters dictyosome, also due to the fixed part of the end of the fixed position of the end on the outside of direction of insertion and direction of insertion inboard Different location of the position configuration on the axis direction of thrashing cylinder, and dictyosome can not be fixed on to threshing chamber frame.Therefore, it will insert Enter the end and direction of insertion inboard on the outside of direction end it is reverse in the state of, dictyosome cannot be fixed on to threshing chamber frame.

In the present invention, preferably, the threshing chamber frame have a side of the threshing chamber forward and backward The side frame of extension is located at the end on the outside of direction of insertion in the outermost dictyosome of direction of insertion in multiple dictyosomes It is formed with flange part, is formed with the fixed part as the part for being fixed on the side frame, the flange in the flange part The thickness of the part of the fixed part in portion is thicker than the thickness of the part in addition to the fixed part in the flange part.

According to above structure feature, by make the fixed part in flange part part thickness than the portion in addition to fixed part The thickness divided is thick, so that the intensity of the part of fixed part is improved, even if bearing net is pulled to the gyratory directions of thrashing cylinder, Gu Determine portion to be also unlikely to deform.

In the present invention, preferably, forming the fixed part by keeping plate Chong Die with the flange part.

According to above structure feature, it is only necessary to keep plate Chong Die with flange part, it will be able to simply form fixed part.

In the present invention, preferably, multiple dictyosomes can mutual dual-purpose, in multiple respective insertions of dictyosome The both ends in direction are formed with the flange part, for two dictyosomes adjacent in an insertion direction in multiple dictyosomes, In dictyosome on the outside of direction of insertion positioned at direction of insertion inboard end in the dictyosome of direction of insertion inboard positioned at insertion side In the state of end overlapping outward, together with the end being located on the outside of direction of insertion in the dictyosome of the direction of insertion inboard It is fixed on the threshing chamber frame by the second fixing piece, the fixed part is fixed on the side frame by third fixing piece Frame, multiple respective two flange parts of dictyosome be formed with can make second fixing piece insert the second insertion hole and It can make the third insertion hole of the third fixing piece insert, only any in multiple respective two flange parts of dictyosome A flange part is formed with the fixed part, for any one flange part in multiple respective two flange parts of dictyosome, The plate blocks second insertion hole, to prevent second fixing piece from inserting.

According to above structure feature, in fact it could happen that following situations, the outermost dictyosome of direction of insertion are answered under normal circumstances The flange part using a side Chong Die with plate in two flange parts as being inserted into a manner of the end on the outside of direction of insertion, but mistakenly with The flange part of a side Chong Die with plate is inserted into as the mode of the end of direction of insertion inboard.However, according to above structure feature, when When the outermost dictyosome of direction of insertion is inserted into a wrong manner, due to the of the flange part of a side Chong Die with plate in two flange parts Two insertion holes are blocked by plate, therefore the second fixing piece cannot insert the second insertion hole.Therefore, it just can be noted that insertion side at this time It is inserted into a wrong manner to outermost dictyosome.I.e. it is capable to be reliably prevented the outermost dictyosome of direction of insertion with The mode of mistake is fixed on threshing chamber frame.

In the present invention, preferably, the threshing chamber frame have a side of the threshing chamber forward and backward The side frame of extension is located at the end on the outside of direction of insertion in the outermost dictyosome of direction of insertion in multiple dictyosomes It is formed with flange part, is formed with the fixed part as the part for being fixed on the side frame, the flange in the flange part The end of the free end side in portion is formed by bending relative to the fixed part.

According to above structure feature, by being bent the end of free end side of flange part relative to fixed part, to mention The high intensity of the part of fixed part, therefore, even if bearing net is pulled to the gyratory directions of thrashing cylinder, fixed part is not also variable Shape.

(2) solution corresponding with problem (2) is as follows.

It is a feature of the present invention that having: thrashing cylinder axis；The one end of the thrashing cylinder axis is arranged in first support plate Side；The other end side of the thrashing cylinder axis is arranged in second support plate；Multiple bar-like members, one end of the bar-like member Portion is supported on first support plate and the other end is supported on second support plate, multiple bar-like members configurations with On circumference centered on the thrashing cylinder axis；Multiple threshing tooths, respectively in the upper setting of each of multiple described bar-like members It is multiple；And spacing board, in approximate circle, setting is in the thrashing cylinder axis and is located at first support plate and described second Between board, the part between the one end and the other end of multiple bar-like members, the diameter ratio of the spacing board are supported It is small closest to the diameter of the rotary track of the part of the thrashing cylinder axis in the section of the bar-like member.

According to above structure feature, the miniaturization of spacing board can be realized.It therefore, can by the miniaturization of spacing board Realize the lightweight of thrashing cylinder.Then, for having the combine harvester of the thrashing cylinder with above structure, due to reducing Threshing load, to save fuel cost.In addition, the material for constituting spacing board is reduced by the miniaturization of spacing board, because This can reduce cost.

In the present invention, preferably, the bar-like member is inclined in the outer circumferential radius lateral direction from the spacing board The spacing board is supported on from the state of.

According to above structure feature, due to being easy to that hand is protruded into the gap between the periphery of spacing board and bar-like member, because This is easy to carry out operation when making bar-like member be supported on spacing board.

In the present invention, preferably, the spacing board is circular.

The manufacture of spacing board can be made to become easy by simplifying the shape of spacing board according to above structure feature.

In the present invention, preferably, on the axis direction of the thrashing cylinder axis, the spacing board configuration is in multiple institutes It states between the threshing tooth adjacent in threshing tooth.

According to above structure feature, when making bar-like member be supported on spacing board, threshing tooth is difficult to become obstacle.

In the present invention, preferably, multiple threshing tooths are spaced in institute adjacent in multiple bar-like members It states different between bar-like member.

According to above structure feature, the threshability of thrashing cylinder is improved even in order to not only inhibit the increase of threshing load Can and make threshing tooth be spaced each other biggish bar-like member and threshing tooth be spaced each other lesser bar-like member be alternately arranged it is de- For grain cylinder, when making bar-like member be supported on spacing board, threshing tooth is also difficult to become obstacle.

In the present invention, preferably, first support plate be it is approximate circle, the diameter of the spacing board is than described the The diameter of one support plate is small.

According to above structure feature, spacing board can not only be made to minimize, additionally it is possible to keep the one end of bar-like member firm Ground is supported on the first support plate.

In the present invention, preferably, second support plate be it is approximate circle, the diameter of the spacing board is than described the The diameter of two support plates is small.

According to above structure feature, spacing board can not only be made to minimize, additionally it is possible to make the other end jail of bar-like member The second support plate is supported on by ground.

Detailed description of the invention

Fig. 1 is the side sectional view for indicating the sheller unit of first embodiment of the invention.

Fig. 2 is the perspective view for indicating the left side of sheller unit.

Fig. 3 is to indicate that dictyosome is fixed on the top view of the state of threshing chamber frame.

Fig. 4 is the top view for indicating two dictyosomes in left and right.

(a) of Fig. 5 is the cross-sectional view along Va-Va line in Fig. 3, and (b) of Fig. 5 is the section view along Vb-Vb line in Fig. 3 Figure, (c) of Fig. 5 are the cross-sectional view along Vc-Vc line in Fig. 3.

(a) of Fig. 6 is the perspective view for indicating two dictyosomes in left and right, and (b) of Fig. 6 is to indicate that the expansion solid of upper flange part is cutd open View.

(a) of Fig. 7 is to indicate that the dictyosome on right side is fixed on the rearview of the state of threshing chamber frame, and (b) of Fig. 7 is to indicate The lower flange portion of the dictyosome on right side is fixed on the three-dimensional cutaway view of the state of central portion frame.

(a) of Fig. 8 is to indicate that the dictyosome in left side is fixed on the rearview of the state of threshing chamber frame, and (b) of Fig. 8 is to indicate The lower flange portion of the dictyosome in left side is fixed on the three-dimensional cutaway view of the state of central portion frame.

(a) of Fig. 9 is to indicate that two dictyosomes in left and right are fixed on the rearview of the state of threshing chamber frame, and (b) of Fig. 9 is table Show that the upper flange part of the dictyosome in left side is fixed on the three-dimensional cutaway view of the state of left side frame.

Figure 10 is the cross-sectional view for indicating the dictyosome of other embodiments.

Figure 11 is the side sectional view for indicating the sheller unit of second embodiment of the present invention.

Figure 12 is the perspective view for indicating threshing entrance.

Figure 13 is the top view for indicating sheller unit.

Figure 14 is the perspective view for indicating the left side of sheller unit.

Figure 15 is the perspective view for indicating the mounting portion of threshing sky plate.

Figure 16 is the side view for indicating thrashing cylinder.

Figure 17 is the back side cross-sectional view for indicating thrashing cylinder.

Description of symbols

1: thrashing cylinder；2: threshing chamber；3: bearing net；11: thrashing cylinder axis；12: front support plate (the first support plate)；13: after Support plate (the second support plate)；14: round tube (bar-like member)；15: threshing tooth；16: spacing board；21: threshing chamber frame；21A: left Side frame (side frame)；31: dictyosome；31B upper flange part (flange part)；31C: lower flange portion (flange part)；31F: the second Bolt hole (the second insertion hole)；31G: third bolt hole (third insertion hole)；31H: notch section (recess portion)；31I: fixed part； 31J: plate；32: the first bolts (the first fixing piece)；33: the second bolts (the second fixing piece)；34: third bolt (fix by third Part)；L: rotary track；Y: axle center.

Specific embodiment

(first embodiment)

Hereinafter, being illustrated with reference to the accompanying drawings to first embodiment of the invention.

Firstly, being illustrated according to overall structure of the Fig. 1 and Fig. 2 to sheller unit.

Sheller unit shown in FIG. 1 is used to be loaded in the combine harvester of the crops such as harvesting paddy, wheat.Threshing dress It sets and threshing processing is carried out to harvesting straw.In the present embodiment, to be loaded into the sheller unit of full feed type combine harvester It is illustrated for embodiment with thrashing cylinder 1.

Threshing chamber 2 is formed on the top of sheller unit.Threshing processing thrashing cylinder 1, thrashing cylinder 1 are equipped in threshing chamber 2 It can be turned round along the axle center Y of front and back direction.It is equipped with bearing net 3 in the lower section of thrashing cylinder 1, bearing net 3 makes to handle in threshing The processed material (threshing processed material) of middle acquisition is leaked down.Opening portion 10 is formed in the left side of threshing chamber 2, and opening portion 10 is by can The covering of threshing open-close lid 9 of opening and closing (referring to Fig. 2).

It is equipped in the lower part of sheller unit and swings sorting oscillatory sorting device 4 and pneumatic separating windmill 5.In windmill 5 Rear, by a recoverer 6 of the grain for being sequentially with object of recycling from front to back, the grain of the secondary object of recycling two Secondary recoverer 7.The primary horizontal spire 6A for carrying grain in the lateral direction is equipped in a recoverer 6.In secondary recovery portion 7 Equipped with the secondary horizontal spire 7A for carrying grain in the lateral direction.

For sheller unit, threshing processing is carried out to harvesting straw in thrashing cylinder 1, makes to handle through threshing obtained Processed material (threshing processed material) is leaked down from bearing net 3.By oscillatory sorting device 4 to the threshing processed material leaked down from bearing net 3 Swing sorting is carried out, and pneumatic separating is carried out to the threshing processed material leaked down from bearing net 3 by windmill 5.It is heavy as a result, For single grain by a recoverer 6 in front as an object recycling, the small grain with branch stalk of specific gravity passes through rear It is recycled as secondary object in secondary recovery portion 7.

In the following, being illustrated according to Fig. 3 to Fig. 6 to bearing net 3.

As shown in Figures 3 to 6, bearing net 3 is divided into two parts on the circumferencial direction along thrashing cylinder 1, and along de- The direction of the axle center Y of grain cylinder 1 is divided into two parts.That is, there are four dictyosomes 31 for the tool of bearing net 3.

Four dictyosomes 31 are made of the same parts for capableing of mutual dual-purpose.Respectively from being formed in the left side of threshing chamber 2 Opening portion 10 is sequentially inserted into four dictyosomes 31.That is, in the present embodiment, " direction of insertion " of dictyosome 31 is right and left To.Therefore, in the present embodiment, " direction of insertion is inboard " refers to right side, and " on the outside of direction of insertion " refers to left side.Four dictyosomes 31 are separately fixed at threshing chamber frame 21, and detailed content will be described hereinafter.

Threshing chamber frame 21 is used to form threshing chamber 2.There is threshing chamber frame 21 frame 21A in left side (to be equivalent to this hair Bright " side frame "), right side frame 21B and central portion frame 21C.Left side frame 21A is in the left side of threshing chamber 2 Extend forward and backward.Right side frame 21B extends forward and backward in the right side of threshing chamber 2.Central portion frame 21C is de- The left and right of grain room 2 extends forward and backward close to central portion.

In four dictyosomes 31, the dictyosome 31 of left and right two of rear side and the knot having the same of the dictyosome of left and right two 31 of front side Structure as needed carries out the dictyosome 31 of left and right two of front side hereinafter, being mainly illustrated to the dictyosome 31 of the left and right of rear side two Explanation.

In the dictyosome 31 of the left and right of rear side two, the end in the dictyosome 31 on right side positioned at left side passes through the first bolt 32 (being equivalent to " the first fixing piece " of the invention) is fixed on central portion frame 21C.However, positioned at right side in the dictyosome 31 on right side End is fixed on right side frame 21B not over bolt etc..That is, positioned at the end on right side in the dictyosome 31 on right side It is to be docked with the lower surface of right side frame 21B.

In the dictyosome 31 of the left and right of rear side two, the end in the dictyosome 31 in left side positioned at right side is in the dictyosome 31 with right side In be located at left side end overlapping in the state of, pass through the second bolt 33 (being equivalent to " the second fixing piece " of the invention) and right side Dictyosome 31 in be located at left side end be fixed on central portion frame 21C together.In addition, positioned at left side in the dictyosome 31 in left side End is fixed on left side frame 21A by third bolt 34 (being equivalent to " third fixing piece " of the invention).

Here, single dictyosome 31 is described in detail.As shown in fig. 6, dictyosome 31 tool there are five pillar 31Aa, 31Ab, 31Ac, 31Ad, 31Ae, the spaced up rule in side of five pillars 31Aa, 31Ab, 31Ac, 31Ad, 31Ae in the axle center Y of thrashing cylinder 1 Fixed interval configuration.The upper end of five pillars 31Aa, 31Ab, 31Ac, 31Ad, 31Ae are interconnected by upper flange part 31B.Five The lower end of a pillar 31Aa, 31Ab, 31Ac, 31Ad, 31Ae are interconnected by lower flange portion 31C.Five pillar 31Aa, In 31Ab, 31Ac, 31Ad, 31Ae between two neighboring pillar, more pole 31D are spaced up in the side of the axle center Y of thrashing cylinder 1 Specified interval configuration.Other than upper flange part 31B has fixed part 31I, upper flange part 31B and lower flange portion 31C have phase Therefore same structure is below mainly illustrated upper flange part 31B, be illustrated as needed to lower flange portion 31C.

Upper flange part 31B is formed with a first bolt hole 31E, two the second bolt hole 31F (are equivalent to of the invention " the second insertion hole "), two third bolt hole 31G (being equivalent to " third insertion hole " of the invention) and a notch section 31H (being equivalent to " recess portion " of the invention).

First bolt hole 31E can be such that the first bolt 32 inserts.First bolt hole 31E is in the side of the axle center Y along thrashing cylinder 1 To configuration between two the second bolt hole 31F.

Second bolt hole 31F can be such that the second bolt 33 inserts.Two the second bolt hole 31F are in the axle center Y along thrashing cylinder 1 Direction be configured to clip the first bolt hole 31E from two sides.

Third bolt hole 31G can be such that third bolt 34 inserts.Two third bolt hole 31G are in the axle center Y along thrashing cylinder 1 Direction be configured to clip two the second bolt hole 31F from two sides.

Notch section 31H is formed in the end of the free end side of upper flange part 31B.Notch section 31H is in the axle center along thrashing cylinder 1 The direction of Y configures between two the second bolt hole 31F.Notch section 31H is bigger than the first bolt 32 (head of the first bolt 32).

The fixed part 31I as the part for being fixed on left side frame 21A is formed in upper flange part 31B.Fixed part 31I Left side frame 21A is fixed on by third bolt 34.However, in lower flange portion 31C and being not formed and being equivalent to upper flange part The part of the fixed part 31I of 31B.That is, for upper flange part 31B and lower flange portion 31C, only in upper flange part 31B It is formed with fixed part 31I.

The thickness of the part of fixed part 31I in upper flange part 31B than in upper flange part 31B in addition to fixed part 31I Partial thickness is thick.In the present embodiment, Chong Die with upper flange part 31B by making plate 31J, to form fixed part 31I.Just For upper flange part 31B, plate 31J blocks the second bolt hole 31F, prevents the second bolt 33 from inserting the second bolt hole 31F.As above It is described, due in the part of the not formed fixed part 31I for being equivalent to upper flange part 31B of lower flange portion 31C, plate 31J not with Lower flange portion 31C overlapping.

In the following, being illustrated according to Fig. 7 to Fig. 9 to the fixing means of dictyosome 31.Hereinafter, to be located in four dictyosomes 31 For the dictyosome 31 of left and right two of rear side, the fixing means of dictyosome 31 is illustrated.

Firstly, as shown in fig. 7, position in the dictyosome 31 of left and right two from the left side (opening portion 10) of threshing chamber 2 by rear side Dictyosome 31 in right side is inserted into.Then, the lower flange portion 31C of the dictyosome 31 on right side is fixed on central portion frame with the first bolt 32 Frame 21C.Specifically, the lower flange portion 31C of the dictyosome 31 on right side is in the state docked with the left side of central portion frame 21C Under, central portion frame 21C is fixed on by the first bolt 32.The lower flange portion 31C of the dictyosome 31 on the first bolt 32 insert right side The first bolt hole 31E.As described above, the only lower surface pair with right side frame 21B the upper flange part 31B of the dictyosome 31 on right side It connects, is not through bolt etc. and is fixed on right side frame 21B.

Then, as shown in figure 8, from the dictyosome 31 of left and right two of the left side (opening portion 10) of threshing chamber 2 insertion rear side Dictyosome 31 positioned at left side.Then, lower flange portion 31C of the lower flange portion 31C of the dictyosome 31 in left side in the dictyosome 31 with right side In the state of overlapping, central portion frame is fixed on together with the lower flange portion 31C of the dictyosome 31 on right side by the second bolt 33 21C.Under the second bolt hole 31F of lower flange portion 31C and the dictyosome 31 on right side of the dictyosome 31 in the second bolt 33 insert left side The second bolt hole 31F of flange part 31C.

At this point, since the lower flange portion 31C of the dictyosome 31 in left side is formed with the notch section 31H bigger than the first bolt 32, Therefore, even if keeping the lower flange portion 31C of the dictyosome 31 in left side Chong Die with the lower flange portion 31C of dictyosome 31 on right side, the net in left side The lower flange portion 31C of body 31 will not interfere the first bolt 32.

Finally, as shown in figure 9, the upper flange part 31B of the dictyosome 31 in left side is fixed on left side frame by third bolt 34 Frame 21A.Specifically, the upper flange part 31B of the dictyosome 31 in left side is in the state docked with the lower surface of left side frame 21A Under, left side frame 21A is fixed on by third bolt 34.The upper flange part 31B of the dictyosome 31 in the insert of third bolt 34 left side Third bolt hole 31G.

That is, for the dictyosome 31 in left side, two fixed positions (the second bolt hole 31F) of lower flange portion 31C It is configured on the direction of the axle center Y of thrashing cylinder 1 with two fixed positions (two third bolt hole 31G) of upper flange part 31B Different location (referring to Fig. 3).In addition, being fixed on the state of threshing chamber frame 21 in the dictyosome 31 on right side and the dictyosome 31 in left side Under, two fixed positions (two the second bolts hole of the lower flange portion 31C of the dictyosome 31 in left side fixed by the second bolt 33 31F) be configured to clip from two sides on the direction along the axle center Y of thrashing cylinder 1 the lower flange portion 31C of the dictyosome 31 on right side by the The fixed position (a first bolt hole 31E) that one bolt 32 is fixed.

Here, following situations may also occur, it is right under normal circumstances for upper flange part 31B and lower flange portion 31C The dictyosome 31 of side should end (right part) using the upper flange part 31B of a side Chong Die with plate 31J as direction of insertion inboard Mode be inserted into, but mistakenly using the upper flange part 31B of a side Chong Die with plate 31J as the end on the outside of direction of insertion The mode of (left part) is inserted into.In this regard, even if the dictyosome 31 on right side is inserted into a wrong manner, by inserting the first bolt 32 The first bolt hole 31E of the upper flange part 31B of the dictyosome 31 on right side, also can be with the first bolt 32 by the upper of the dictyosome 31 on right side Flange part 31B is fixed on central portion frame 21C.

However, when the dictyosome 31 when right side is inserted into a wrong manner, even if the lower flange portion 31C of the dictyosome 31 in left side exists In the state of Chong Die with the upper flange part 31B of dictyosome 31 on right side, it is desirable to lead to together with the upper flange part 31B of the dictyosome 31 on right side It crosses the second bolt 33 and is fixed on central portion frame 21C, also due to the second bolt hole of the upper flange part 31B of the dictyosome 31 on right side 31F is blocked by plate 31J, prevent the second bolt 33 is from inserting the second bolt hole 31F.Therefore, at this point, just can be noted that right side Dictyosome 31 be inserted into a wrong manner.That is, the dictyosome 31 for being reliably prevented from right side is fixed on threshing in a wrong manner Room frame 21.

Furthermore, it is also possible to there is following situations, it is left under normal circumstances for upper flange part 31B and lower flange portion 31C The dictyosome 31 of side should be using the upper flange part 31B of a side Chong Die with plate 31J as the end (left part) on the outside of direction of insertion Mode be inserted into, but the mistakenly end (right part) using the upper flange part 31B Chong Die with plate 31J as direction of insertion inboard Mode be inserted into.

However, when the dictyosome 31 when left side is inserted into a wrong manner, even if the upper flange part 31B of the dictyosome 31 in left side exists In the state of Chong Die with the lower flange portion 31C of dictyosome 31 on right side, it is desirable to lead to together with the lower flange portion 31C of the dictyosome 31 on right side It crosses the second bolt 33 and is fixed on central portion frame 21C, also due to the second bolt hole of the upper flange part 31B of the dictyosome 31 in left side 31F is blocked by plate 31J, prevent the second bolt 33 is from inserting the second bolt hole 31F.Therefore, at this point, just can be noted that left side Dictyosome 31 be inserted into a wrong manner.That is, the dictyosome 31 for being reliably prevented from left side is fixed on threshing in a wrong manner Room frame 21.

Here, by taking the dictyosome 31 of left and right two for being located at rear side in four dictyosomes 31 as an example, to the fixing means of dictyosome 31 into Explanation is gone, the step of the fixing means of two dictyosomes 31 in left and right of the fixing means and rear side of the dictyosome 31 of left and right two of front side It is identical.

In the following, being illustrated according to Fig. 4 and Fig. 6 to plate 31J.

As shown in Figure 4 and Figure 6, plate 31J is approximate rectangular plate-shaped member.Plate 31J using longitudinal direction as front-rear direction and Short side direction is that the posture of left and right directions is Chong Die with the lower surface of upper flange part 31B.Bolt hole 31Ja, are formed in plate 31J One gap slot 31Jb and the second gap slot 31Jc.

Bolt hole 31Ja can be such that third bolt 34 inserts.First gap slot 31Jb and the second gap slot 31Jc is by from plate A long side (being located at the long side on the inside of body in a pair of of long side) of 31J is cut along short side direction (body lateral direction) to be formed. The distance between the front-rear center of the center of bolt hole 31Ja and the first gap slot 31Jb center of D1 and bolt hole 31Ja and the The distance between the front-rear center of two gap slot 31Jc D2 is set to mutually different distance.Specifically, distance D1 is set It is set to bigger than distance D2.

Here, to the two third bolt hole 31G and pillar 31Ab, pillar of the upper flange part 31B for dictyosome 31 31Ad is illustrated.Here, being illustrated for being located at the dictyosome 31 in left side in two dictyosomes 31 in left and right, other dictyosomes 31 tool There is same structure.

As shown in figure 4, for dictyosome 31, when will center line (the front end P1 of dictyosome 31 and rear end in the front-back direction Center line between P2) centered on line C when, the third spiral shell of front side is located in two third bolt hole 31G of upper flange part 31B It keyhole 31G and is configured before and after relative to center line C on symmetrical position positioned at the third bolt hole 31G of rear side.That is, The center of the third bolt hole 31G of the distance between Center-to-Center line C of third bolt hole 31G of front side and rear side is in The distance between heart line C is set to mutual equal distance D3.

Also, pillar 31Ab and pillar 31Ad configuration is before and after relative to center line C on asymmetrical position.Namely It says, between the distance between front-rear center and center line C of pillar 31Ab D4 and the front-rear center and center line C of pillar 31Ad Distance D5 be set to mutually different distance.Specifically, distance D4 be set to it is bigger than distance D5.

In addition, the distance between the center of the third bolt hole 31G of front side and the front-rear center of pillar 31Ab are set to Distance D2.That is, the distance between front-rear center of the center of the bolt hole 31Ja of plate 31J and the second gap slot 31Jc D2 It is identical to be set to the distance between the center of the third bolt hole 31G with front side and the front-rear center of pillar 31Ab D2.

Also, the distance between the center of the third bolt hole 31G of rear side and the front-rear center of pillar 31Ad are set to Distance D1.That is, the distance between front-rear center of the center of the bolt hole 31Ja of plate 31J and the first gap slot 31Jb D1 It is identical to be set to the distance between the center of the third bolt hole 31G with rear side and the front-rear center of pillar 31Ad D1.

In this way, the third bolt hole 31G of front side and the third bolt hole 31G of rear side are configured opposite for dictyosome 31 The symmetrical position before and after center line C.Therefore, by the third bolt 34 being inserted through in former and later two third bolts hole 31G, It being capable of anterior-posterior balance mesh body 31 well.

For dictyosome 31, even if pillar 31Ab and pillar 31Ad configuration asymmetrical position before and after relative to center line C It sets, does not also need to prepare the front part and the respective dedicated plate of rear section in upper flange part 31B.That is, working as plate 31J is in upper flange part 31B when front part, by making pillar 31Ab enter the second gap slot 31Jc, thus make plate 31J and Pillar 31Ab is non-interference.On the other hand, when plate 31J is for rear section in upper flange part 31B, by make pillar 31Ad into Enter the first gap slot 31Jb, to keep plate 31J and pillar 31Ad non-interference.As a result, due to not needing to prepare upper flange part 31B The respective dedicated plate of middle front part and rear section, it is thus possible to reduce cost by the dual-purpose of plate 31J.(first is real Apply the other embodiments of mode)

It (1) in the above-described embodiment, is to be loaded in the embodiment of full feed type combine harvester with sheller unit to be The explanation that example carries out, sheller unit can also be loaded in half feed type combine harvester.

(2) in the above-described embodiment, " direction of insertion " of dictyosome 31 is left and right directions, but " direction of insertion " of dictyosome 31 It may be front-rear direction.

(3) in the above-described embodiment, bearing net 3 is divided into two parts, but bearing net 3 along the circumferencial direction of thrashing cylinder 1 Three parts can also be divided into along the circumferencial direction of thrashing cylinder 1.At this point, in an insertion direction between two adjacent dictyosomes 31, It (can be fixed using the above structure by the first bolt 32 and the second bolt 33).

(4) in the above-described embodiment, bearing net 3 is divided into two parts along the direction of the axle center Y of thrashing cylinder 1, but is held Three parts or more can also be divided by the direction of the axle center Y along thrashing cylinder 1 by connecing net 3, can also be in the axle center Y along thrashing cylinder 1 Direction without segmentation.

(5) in the above-described embodiment, for the tool of bearing net 3 there are four dictyosome 31, bearing net 3 also can have two or three Or five or more dictyosomes 31.

(6) in the above-described embodiment, plate 31J is Chong Die with the upper flange part 31B of dictyosome 31, but as shown in Figure 10, convex The end of the free end side of edge 31B can also be formed by bending relative to fixed part 31I.That is, upper flange part 31B from Approximate L-shaped can also be formed as by the end of end side.

(7) in the above-described embodiment, by the second bolt 33 by the lower flange portion 31C of the dictyosome 31 in left side and right side The lower flange portion 31C of dictyosome 31 is tightened to central portion frame 21C together, and however, you can also not pass through the second bolt 33 for left side The lower flange portion 31C of dictyosome 31 and the lower flange portion 31C of dictyosome 31 on right side be tightened to central portion frame 21C together (central portion frame 21C can be separately fixed at).

(8) in the above-described embodiment, " recess portion " is made of notch section 31H, but " recess portion " can also be by than the first bolt 32 big recessed portions or hole are constituted.

(9) in the above-described embodiment, multiple dictyosomes 31 can mutual dual-purpose, but multiple dictyosomes 31 can not also be mutual simultaneous With.

(10) in the above-described embodiment, position i.e. the first bolt hole 31E fixed in dictyosome 31 by the first bolt 32 It is one, but the first bolt hole 31E may be two or more.

(11) in the above-described embodiment, position i.e. the second bolt hole 31F fixed in dictyosome 31 by the second bolt 33 It is two, but the second bolt hole 31F may be one, can also is three or more.

(12) in the above-described embodiment, the position, that is, third bolt hole 31G fixed in dictyosome 31 by third bolt 34 It is two, but third bolt hole 31G may be one, can also is three or more.

(13) in the above-described embodiment, it is formed with fixed part 31I in the upper flange part 31B of dictyosome 31, but in dictyosome 31 Upper flange part 31B can not also form fixed part 31I.At this point, since upper flange part 31B is identical with lower flange portion 31C, it is convex Edge 31B can be used as lower flange portion, and lower flange portion 31C can be used as upper flange part use.

(14) in the above-described embodiment, by keeping plate 31J Chong Die with the upper flange part 31B of dictyosome 31, to be formed solid Determine portion 31I, but fixed part 31I can also be integrally formed with upper flange part 31B.

(second embodiment)

In the following, being illustrated to second embodiment of the present invention.

As shown in figure 12, the threshing entrance for being carried to harvesting straw is formed in the preceding lower end of threshing chamber 2 121.Harvesting straw is carried to threshing entrance 121 by feeder 8 (referring to Fig.1 1).Threshing is installed in threshing entrance 121 to enter Oralia 22.The right side wall 22a of threshing access panel 22 is formed as gradually (flat to the radial direction of thrashing cylinder 1 from the outlet of feeder 8 Widened shape slidingly).As a result, since crops successfully flow (the flowing A of crops shown in referring to Fig.1 2), Neng Goushi Now prevent the reduction of abrasion and the thrashing cylinder blocking (blocking of harvesting straw) of threshing access panel 22 (right side wall 22a).

As shown in Figure 13 and Figure 14, it is formed with opening portion 10 in the left side of threshing chamber 2, what opening portion 10 can be opened and closed Threshing open-close lid 9 is covered.The rear end of threshing open-close lid 9 by swinging axle 91 with can vertically direction axle center Z swing Mode support.The rake 92 of inclined downward outward is equipped in the front of the inside of threshing open-close lid 9.In threshing open-close lid In the case that 9 are in close state, the height of the outboard end of rake 92 is set to the lower edge portion 10a with opening portion 10 Height it is consistent or roughly the same.

Here, when threshing open-close lid 9 is tilted because of own wt forward downward, since the position of threshing open-close lid 9 is opposite It misplaces in opening portion 10, therefore threshing open-close lid 9 is easily shut off.However, according to the present embodiment, though threshing open-close lid 9 because The inclination of own wt forward downward, also can be by interlocking with the closing motion of threshing open-close lid 9, and rake 92 is to opening portion 10 Lower edge portion 10a gradually rise, to keep 9 forward upward of threshing open-close lid mobile.As a result, since threshing open-close lid 9 is determined Position will not make threshing open-close lid 9 be difficult to close in opening portion 10.

As shown in figure 13, the top of thrashing cylinder 1 is covered in a manner of assemble and unassemble by threshing sky plate 23.In threshing sky plate 23 Left and right ends portion be formed with mounting portion 23a.Mounting portion 23a is fixed on the side to form sheller unit by six roots of sensation bolt 26 Side wall 25 (referring to Fig.1 5).Specifically, being carried out for mounting portion 23a with the bolt 26 of rearmost end in six roots of sensation bolt 26 Fixed part is welded with reinforcement L plate 27.In the state that L plate 27 is soldered, which is fixed on side wall by bolt 26 25.In addition, for mounting portion 23a, by five bolts 26 in six roots of sensation bolt 26 in addition to the bolt 26 of rearmost end into The fixed part of row, is welded with reinforcement plate 28.In the state that plate 28 is soldered, which is fixed on by bolt 26 Side wall 25.As a result, in the state that threshing load is larger, when generating upward active force to threshing sky plate 23, by L plate 27 and plate 28 reinforce in the state of so that mounting portion 23a is fixed on side wall 25 by bolt 26, can be improved the resistance to of mounting portion 23a The property used.

In the following, being illustrated according to Figure 16 and Figure 17 to thrashing cylinder 1.

As shown in Figure 16 and Figure 17, there is thrashing cylinder 1 thrashing cylinder axis 11, front support plate 12 (to be equivalent to " the first bearing Plate "), rear support plate 13 (being equivalent to " the second support plate "), more round tubes 14 (being equivalent to " bar-like member "), multiple threshing tooths 15 And spacing board 16.

Thrashing cylinder axis 11 is set up in a manner of the rear wall of the antetheca of bridging threshing chamber 2 and threshing chamber 2.Before thrashing cylinder axis 11 End is supported on the antetheca of threshing chamber 2, the rear end of thrashing cylinder axis 11 branch in a manner of it can turn round in a manner of it can turn round Hold the rear wall in threshing chamber 2.For thrashing cylinder axis 11, in the front side of front support plate 12, it is equipped with spiral organ 17, spiral organ 17 Threshing entrance 121 is sent into for straw will to be gathered in.

Front support plate 12 is arranged on the front end side of thrashing cylinder axis 11.Front support plate 12 is formed as circular or approximate circle Shape.The diameter of front support plate 12 is bigger than the diameter in the section of round tube 14 closest to the rotary track L of the part of thrashing cylinder axis 11. The section of round tube 14 refers to, the section (following also the same) on the direction vertical with the axis direction of round tube 14.In addition, in preceding branch Board 12 is supported with the front end of round tube 14.Specifically, the front end of round tube 14 passes through front support bracket in front support plate 12 14a bearing.

Front support bracket 14a is fixed on the front end of round tube 14 by fixing means such as welding.Front support bracket 14a passes through two Bolt 18 is fixed on front support plate 12.

Rear support plate 13 is arranged on the rear end portion side of thrashing cylinder axis 11.Rear support plate 13 is formed as circular or approximate circle Shape.The diameter of rear support plate 13 is bigger than the diameter in the section of round tube 14 closest to the rotary track L of the part of thrashing cylinder axis 11. The rear end of round tube 14 is supported in rear support plate 13.Specifically, being supported in rear support plate 13 by rear support bracket 14b The rear end of round tube 14.

Rear support bracket 14b is fixed on the rear end of round tube 14 by fixing means such as welding.Rear support bracket 14b passes through two Bolt 18 is fixed on rear support plate 13.

The more configurations of round tube 14 are on the circumference centered on thrashing cylinder axis 11.In the present embodiment, more round tubes 14 For the six roots of sensation.Specifically, six roots of sensation round tube 14 is configured on the circumference centered on thrashing cylinder axis 11 by equal angular interval.Round tube 14 with the state support that deviates from the outer circumferential radius lateral direction of spacing board 16 in spacing board 16.That is, round tube 14 with The state that clearance G is formed between the periphery and round tube 14 of spacing board 16 is supported on spacing board 16 by intermediate support frame 14c.

Intermediate support frame 14c is the flat-shaped part for being formed with chimeric recess portion.Chimeric recess portion is formed as outer with round tube 14 The chimeric semicircular shape of Monday half part.In the state that round tube 14 is entrenched in chimeric recess portion, intermediate support frame 14c passes through The fixing means such as welding are fixed on round tube 14.Intermediate support frame 14c is fixed on spacing board 16 by a bolt 18.It is specific and Speech, intermediate support frame 14c are consolidated with being connected to the state of the front surface of spacing board 16 from the rear of spacing board 16 by bolt 18 It is fixed.

Six roots of sensation round tube 14 is respectively equipped with multiple threshing tooths 15.In the present embodiment, multiple threshing tooths 15 are spaced in six It is different between adjacent round tube 14 in root round tube 14.Specifically, the threshing tooth 15 of three round tubes 14 is arranged in six roots of sensation round tube 14 For D6 at equal intervals, and the threshing tooth 15 of its excess-three root round tube 14 is set as the at equal intervals D7 smaller than interval D 6.In thrashing cylinder axis 11 Direction, with interval D 6 configure threshing tooth 15 each other exist two with interval D 7 configuration threshing tooth 15.

Spacing board 16 is arranged on thrashing cylinder axis 11 and between front support plate 12 and rear support plate 13.Specifically, Spacing board 16 is arranged on thrashing cylinder axis 11 and is located at the middle of front support plate 12 and rear support plate 13 or close to middle Position.Also, spacing board 16 supports the part between the front end and rear end of round tube 14.Specifically, spacing board 16 supports Central portion of the round tube 14 on axis direction or close to central portion.

Spacing board 16 is formed as round.Specifically, spacing board 16 is formed as circular.The diameter of spacing board 16 compares round tube The diameter of rotary track L in 14 section closest to the part of thrashing cylinder axis 11 is small.The diameter of spacing board 16 is than front support plate 12 diameter is small, and smaller than the diameter of rear support plate 13.

On the direction of the axle center Y of thrashing cylinder axis 11, spacing board 16 configures threshing tooth adjacent in multiple threshing tooths 15 Between 15.That is, on the direction of the axle center Y of thrashing cylinder axis 11, spacing board 16 configuration is being configured with interval D 6 Between threshing tooth 15, and configure between threshing tooth 15 configured with interval D 7.

By structures described above, spacing board 16 can be realized miniaturization.Therefore, by the miniaturization of spacing board 16, The weight of thrashing cylinder 1 can be made to reduce.For the combine harvester with above-mentioned thrashing cylinder 1, due to threshing load Reduction, so that fuel cost be made to reduce.Also, the miniaturization for passing through spacing board 16 can reduce the material for constituting spacing board 16, So as to reduce cost.

(other embodiments of second embodiment)

(1) in the above-described embodiment, there is thrashing cylinder 1 with the sheller unit for being loaded in full feed type combine harvester It is illustrated for embodiment, but may be that the sheller unit for being loaded in half feed type combine harvester has thrashing cylinder 1 embodiment.

(2) in the above-described embodiment, round tube 14 is the six roots of sensation, but round tube 14 may be five or less or seven or more.

(3) in the above-described embodiment, spacing board 16 is circular, but spacing board 16 may be to have in the radial direction There is the approximate circle of a little bumps.

(4) in the above-described embodiment, the section of round tube 14 is circular, but the section of round tube 14 may be approximate circle Shape.Also, " bar-like member " is round tube 14, but " bar-like member " may be square tube.

(5) in the above-described embodiment, multiple threshing tooths 15 are spaced in six roots of sensation round tube 14 adjacent round tube 14 to each other It is different, but the interval of multiple threshing tooths 15 can also be identical in six roots of sensation round tube 14.

[industrial availability]

The present invention can be used in sheller unit.

Claims (2)

1. a kind of sheller unit, which is characterized in that have:

Threshing chamber equipped with thrashing cylinder,

Formed the threshing chamber threshing chamber frame and

The bearing net of the lower section of the thrashing cylinder is set,

The bearing net by along the thrashing cylinder circumferencial direction segmentation, the bearing net have from a side of the threshing chamber according to Multiple dictyosomes of secondary insertion,

Multiple dictyosomes are separately fixed on the threshing chamber frame.

2. a kind of sheller unit has thrashing cylinder, which is characterized in that,

The thrashing cylinder has:

Thrashing cylinder axis；

The one end side of the thrashing cylinder axis is arranged in first support plate；

The other end side of the thrashing cylinder axis is arranged in second support plate；

Multiple bar-like members, the one end of the bar-like member is supported on first support plate and the other end be supported on it is described Second support plate, multiple bar-like member configurations are on the circumference centered on the thrashing cylinder axis；

Multiple threshing tooths, it is multiple in the upper setting of each of multiple described bar-like members respectively；And

Spacing board, in approximate circle, setting is in the thrashing cylinder axis and is located at first support plate and second support plate Between, the part between the one end and the other end of multiple bar-like members is supported,

Rotary track of the diameter of the spacing board than the part of the thrashing cylinder axis closest in the section of the bar-like member Diameter it is small.