JP2020010724A - Threshing cylinder - Google Patents

Abstract

To provide a threshing cylinder capable of preventing invasion of a reaped grain culm to an inner space and capable of facilitating maintenance and/or replacement of a threshing teeth frame.SOLUTION: A threshing cylinder concerning the present invention includes: front side and rear side plates fixed to a threshing cylinder shaft; a shielding plate mounted to the front side and rear side plates so as to form an inner space for covering around the threshing cylinder shaft; and multiple threshing teeth frames comprising a support bar formed of pipes and multiple threshing teeth arranged while keeping a gap along the longitudinal direction of the support bar. The multiple threshing teeth frames are arranged while keeping intervals in the circumferential direction of the threshing cylinder shaft on an outer surface of the shielding plate, in the state where the support bar is parallel to the threshing cylinder shaft and the multiple threshing teeth extend to a radially outward direction.SELECTED DRAWING: Figure 6

Description

  TECHNICAL FIELD The present invention relates to a handling cylinder that performs threshing on a harvested grain culm supplied to a handling room.

  As a handling cylinder that performs threshing on the harvested grain culm supplied to the handling room, a front plate and a rear plate fixed to the front and rear portions of the handling cylinder shaft, and along the circumferential direction of the handling cylinder shaft A plurality of support bars supported by the front plate and the rear plate so as to be arranged, and a plurality of toothed teeth provided to extend radially outward on each of the plurality of support bars. A handling cylinder having the same has been proposed (for example, see Patent Documents 1 to 10 below).

  In the handling cylinder, since the harvested grain culm freely enters the internal space of the handling cylinder body formed by the front plate, the rear side plate, and the plurality of support bars, the harvested grain culm is attached to the handling cylinder shaft and the support bar. It is easy to wrap and threshing efficiency may deteriorate.

  In addition, in Patent Documents 1 to 5, a hollow pipe member is used as the support bar, and a mounting hole is penetrated in a width direction orthogonal to a longitudinal direction of the hollow pipe member. Disclosed is that the tooth is fixed to the hollow pipe member at two locations radially inside and outside in a state where the tooth is inserted and the tooth is extended outward in the radial direction with respect to the cylinder axis. Have been.

  In contrast to the handling cylinders described in Patent Literatures 1 to 10, Patent Literature 11 below describes a front plate and a rear plate fixed to a front portion and a rear portion of a handling cylinder shaft, and along a circumferential direction of the handling cylinder shaft. A plurality of support bars supported by the front plate and the rear plate so as to be arranged, and a plurality of toothing provided to extend radially outward on each of the plurality of support bars. A shielding plate that covers at least a portion between adjacent support bars, wherein the shield is located radially inward of a virtual outer surface that connects the outer peripheral surfaces of the adjacent support bars. A handling cylinder with a plate is disclosed.

  The handling cylinder described in Patent Document 11 effectively obtains the threshing action by the plurality of handling teeth supported by the support bar, and effectively enables the cut grain culm to enter the internal space of the handling cylinder main body due to the presence of the shielding plate. Further, by positioning the shielding plate radially inward of the virtual outer surface, the processing space between the shielding plate and the inner surface of the handling room can be expanded as much as possible. Is useful in that

However, the handling cylinder described in Patent Document 11 has room for improvement with regard to maintenance and / or replacement of the handling teeth.
Since a large load is applied to the tooth handling during threshing, it may be necessary to perform maintenance and / or replacement of the tooth handling.
In the threshing apparatus described in Patent Document 11, the front plate, the rear plate, and the support bar form a frame body (handle body), and the shielding plate is detachably attached to the frame body. Are linked.
That is, in the configuration described in Patent Document 11, the support bar itself forms the handling drum main body, and removing the support bar is a very troublesome operation.

  It is also disclosed in Patent Literature 2 that covering between adjacent support bars with a shielding plate to prevent the intrusion of the harvested grain culm into the inside of the handling drum main body is disclosed in Patent Literature 2 described above. In the described configuration, the shield is welded to the support bar, thus making maintenance and / or replacement of the support bar more cumbersome.

Japanese Patent No. 4148978 Chinese Utility Model No. ZL9620464.8 Specification Chinese Utility Model No. ZL20030110474.9 Chinese Utility Model No. ZL20032011091.3 Chinese Utility Model ZL200720018949. Issue X Chinese Utility Model No. ZL96201207.6 Chinese Utility Model No. ZL0123434.5 Chinese Utility Model No. ZL022240781.2 Chinese Utility Model No. ZL20040042319.0 China Utility Model No. ZL200420051275. Issue X Japanese Patent No. 5437117

  The present invention has been made in view of the related art, and a plurality of toothed frames each having a support bar and a plurality of toothed teeth fixed to the support bar are arranged around the axis of the handle shaft. It is an object of the present invention to provide a handling cylinder that can easily perform maintenance and / or replacement of the tooth handling frame, while effectively preventing the intrusion of the harvested culm into the internal space.

  In order to achieve the above object, the present invention provides a front and rear plate fixed to a handle cylinder shaft, and attached to the front and rear plates so as to form an internal space covering around the handle cylinder shaft. And a plurality of tooth treatment frames including a support bar formed of a pipe and a plurality of tooth treatment teeth arranged with a gap along a longitudinal direction of the support bar, and the plurality of tooth treatment frames. In a state where the support bar is parallel to the handling cylinder axis and the plurality of handling teeth extend radially outward, while leaving a circumferential interval of the handling cylinder axis on the outer surface of the shielding plate. Provide an array of cylinders.

  In one embodiment, the front plate has a front radial extension portion fixed to the handle cylinder shaft and a front circumferential extension portion extending in the circumferential direction of the handle cylinder shaft, and the rear plate Has a rear radially extending portion fixed to the handle cylinder shaft so as to face the front radially extending portion and a rear circumferentially extending portion extending in the circumferential direction of the handling cylinder shaft. The shielding plate is wound around the front circumferentially extending portion and the rear circumferentially extending portion, and the support bar is fixed to the long bar body and the bar body. It has front and rear mounting brackets. The front side circumferentially extending portion, the rear side circumferentially extending portion and the shielding plate are arranged such that a surface facing radially outward is arranged in a circumferential direction of the handling cylinder shaft, and the front side and the rear side mounting bracket are In a state where the bar body is located on the radially outer surface of the shielding plate, the bar main body is detachably fixed to the corresponding radially outer surfaces of the front and rear circumferentially extending portions with the shielding plate therebetween. .

  ADVANTAGE OF THE INVENTION According to the handling cylinder which concerns on this invention, while effectively preventing a cutting grain culm from entering into the internal space of a handling cylinder, only one tooth handling frame containing the worn and / or damaged tooth handling is treated. Can be removed from the torso. Therefore, maintenance and / or replacement of the tooth handling frame having tooth handling that is likely to be worn and / or damaged can be easily performed.

FIG. 1 is a left side view of a combine to which a handling cylinder according to an embodiment of the present invention can be applied. FIG. 2 is a right side view of the combine. FIG. 3 is a plan view of the combine. FIG. 4 is a schematic diagram of the transmission of the combine. FIG. 5 is a side view of the handling cylinder. FIG. 6 is a perspective view of the handling cylinder. FIG. 7 is a sectional view taken along line VII-VII in FIG. FIG. 8 is a sectional view taken along line VIII-VIII in FIG. FIG. 9 is a sectional view taken along line IX-IX in FIG. FIG. 10 is an exploded perspective view of the handling cylinder, showing a state viewed from the front. FIG. 11 is an exploded perspective view of the handling cylinder, showing a state viewed from behind. FIG. 12 is a perspective view of a tooth handling frame provided in the handling cylinder. FIG. 13 is a sectional view taken along line XIII-XIII in FIG.

Hereinafter, preferred embodiments of a handling cylinder according to the present invention will be described with reference to the accompanying drawings.
First, a combine 1 to which the handling cylinder 600 according to the present embodiment is applied will be described.
1 to 4 show a left side view, a right side view, a plan view, and a schematic transmission view of the combine 1, respectively.

  As shown in FIGS. 1 to 4, the combine 1 includes a traveling body 10, a pair of left and right traveling crawlers 20 connected to the traveling body 10, an engine 25 mounted on the traveling body 10, A transmission 30 inserted in a transmission path from the engine 25 to the traveling crawler 20; an operating unit 40 mounted on the traveling aircraft 10; a reaper 100 connected in front of the traveling aircraft 10; A threshing device 200 for threshing the harvested grain culm cut by the cutting unit 100 and a Glen tank 50 for storing the grains generated by the threshing device 200 are provided.

As shown in FIGS. 1 to 3, the driving unit 40 is disposed at a front portion of the traveling body 10 and on one side in a body width direction.
In the present embodiment, one side and the other side in the body width direction mean the right side and the left side, respectively, in the forward direction of the combine 1.

  The driving section 40 has a driver seat 41 on which a driver can sit, and various operation members arranged near the driver seat 41.

  The operation members include a steering operation member 42 for changing the traveling direction of the combine 1, a main speed change operation member 43 and a sub speed change operation member 44 for changing the traveling speed of the combine 1, and a drive and thruster for the threshing device 200. It includes a threshing clutch operating member 45 for switching the stop and a cutting clutch operating member 46 for switching the drive and stop of the reaper 100.

  As shown in FIGS. 1 to 3, the engine 25 is supported by the traveling body 10 using a space below the driving unit 40.

  The engine 25 includes an engine body 26 supported by the traveling body 10 in a space below the driving unit 40, a first output shaft 27a extending from the engine body 26 to the other side in the body width direction, There are second and third output shafts 27b and 27c extending from the main body 26 to one side in the body width direction.

  The transmission 30 is configured to shift the rotational power operatively input from the engine 25 and output the rotational power to the pair of traveling crawlers 20.

  As shown in FIGS. 1 and 3, the transmission 30 is disposed forward of the engine 25 and below the operating section 40.

  Specifically, the transmission 30 includes a transmission case 31 supported by the traveling body 10, a transmission input shaft 32 extending from the transmission case 31 to the other side in the vehicle width direction, and a transmission input shaft 32. And a transmission mechanism that changes the input rotational power.

As shown in FIG. 4, in the present embodiment, the transmission 30 is a hydraulic continuously variable transmission (HST) that performs a continuously variable transmission according to an operation on the main transmission operation member 43 as the transmission mechanism. And the like, and a gear-type transmission that operatively inputs rotational power from the main transmission 35 and performs a multi-stage transmission in response to an operation on the sub-transmission operation member 44. Sub-transmission (not shown).
Note that, in the present embodiment, the pump shaft of the HST 35 functions as the transmission input shaft 32.

The mowing device 100 is connected to the traveling machine body 10 so as to be able to move up and down, and the height can be adjusted by a hydraulic cylinder device 60 for raising and lowering (see FIG. 1).
Hydraulic oil is supplied to the elevating hydraulic cylinder device 60 from a hydraulic pump 28 (see FIG. 4) attached to the engine 25.

  The harvester 100 is disposed in the feeder house 110 and a feeder house 110 that defines a transport path for sending the harvested grain culm toward a handle provided in a front part of the handling chamber 201 in the threshing apparatus 200. Feeding conveyor 115, a grain header 120 in the form of a horizontally long bucket connected to the front end of the feeder house 110, a scraper auger 125 disposed in the grain header 120, and a front and upper part of the scraper auger 125. And a cutting blade 140 disposed in front of and below the raking auger 125.

  The feed conveyor 115 is disposed along the machine width direction at the trailing end side (rear side) in the transfer direction and along the machine width direction at the start end side (front side) in the transfer direction. The mowing driven shaft 117, the driving-side rotating body 118 a supported non-rotatably by the mowing input shaft 116, the driven-side rotating body 118 b supported by the mowing driven shaft 117, the driving-side rotating body 118 a, and the driven And a conveyor body 118c wound around the side rotating body 118b.

  In such a configuration, the lifting hydraulic cylinder device 60 (see FIG. 1) is interposed between the lower surface of the feeder house 110 and the traveling machine body 10, and the reaping device 100 includes the lifting hydraulic cylinder The device 60 can move up and down around the cutting input shaft 116.

  As shown in FIGS. 1 to 3, in the present embodiment, the reaper 100 further includes a pair of right and left weeds 150 extending forward from both sides in the machine width direction of the grain header 120. I have.

With this configuration, the uncut mushroom culm between the pair of left and right weeds 150 is cut by the cutting blade 140 on the culm side while the spike tip side is scraped by the scraping reel 130.
The harvested grain culm cut by the cutting blade 140 is gathered by the scraping auger 125 in the vicinity of the front end opening of the feeder house 110 in the grain header 120, and is fed from the front end opening of the feeder house 110 by the supply conveyor 115. It is conveyed toward the rear end opening, and is thrown into the handling chamber 201 from the handling port.

  As shown in FIGS. 1 and 4, the combine 1 according to the present embodiment includes a front rotor mechanism 160 that feeds the harvested grain culms sent from the supply conveyor 115 to the handling port of the handling chamber 201. ing.

  The front rotor mechanism 160 includes a front rotor drive shaft 161 extending in a machine body width direction between a transfer end of the supply conveyor 115 and the handling port, and a front rotor supported by the front rotor drive shaft 161 so as not to rotate relatively. And a harvester culm conveyed to the conveying end of the supply conveyor 115 from the handling port by the front rotor 162 into the handling chamber 201. .

As shown in FIG. 1 and FIG. 4 and the like, the threshing apparatus 200 includes a handling chamber 201 formed by a machine frame erected on the traveling machine body 10 and a handling cylinder shaft disposed along a front-rear direction. 210, a handling cylinder 600 according to the present embodiment housed in the handling chamber 201 in a state of being driven to rotate by the handling cylinder shaft 210, and a receiving net 230 provided below the handling cylinder 220 ( FIG. 1).
The details of the handling cylinder 600 will be described later.

Of the threshed from the harvested culm by the handling drum 600, thresh such as grains smaller than the mesh opening of the receiving net 230 leaks from the receiving net 230, and the following sorting in the threshing apparatus 200. The sorting process is performed by the mechanism 250.
On the other hand, thresh such as straw chips larger than the mesh opening of the receiving net 230 is discharged from the dust outlet 205 provided behind the handling chamber 201 by the transport action of the handling cylinder 220.

  Preferably, a plurality of dust valves (not shown) whose mounting angles can be changed are provided above the handling cylinder 220, and threshing in the handling chamber 201 is performed by changing the mounting angles of the dust valves. Can be adjusted.

  The threshing apparatus 200 further includes the kernel sorting mechanism 250 that sorts kernels from thresh leaked from the receiving net 230.

  The kernel sorting mechanism 250 includes an oscillating sorter 260 that performs specific gravity sorting on the thresh that has leaked from the receiving net 230, and a sifting wind supply that supplies a sifting wind toward the oscillating sorter 260. And a body 280.

The swing sorting body 260 includes a swing sorting drive shaft 261 driven by power operatively transmitted from the engine 25 and a swing sorting board 265 swinged by the swing sorting drive shaft 261. Have.
The swing sorter 265 includes a Glen pan, a chaff sheave, a Glen sheave, and a straw rack.

  The sorting wind supply body 280 includes a Karamin shaft 281 driven by power operatively transmitted from the engine 25, and a Karamin fan 285 driven by the Karamin shaft 281.

  The grain sorting mechanism 250 further separates the grains (first particles such as fine grains) selected from threshed by the specific gravity sorting action by the swing sorting body 260 and the wind sorting action by the sorting wind supply body 280. The first gutter 301 to be aggregated, the first conveyor mechanism 310 provided in the first gutter 301, and a lifter for transporting the first object sent by the first conveyor mechanism 310 into the Glen tank 50. A grain conveyor mechanism 320, a second gutter 302 for collecting a mixture of grains and straw (second material) from the threshed material, a second conveyor mechanism 330 disposed in the second gutter 302, And a second reduction conveyor mechanism 340 for returning the second product sent by the second conveyor mechanism 330 to the sorting start side of the swing sorting board 265.

Here, the transmission structure of the combine 1 will be described.
As shown in FIG. 4, the second and third output shafts 27b and 27c of the engine 25 drive the hydraulic pump 28 and the cooling fan 29, respectively.

  On the other hand, the first output shaft 27a of the engine 25 outputs traveling system rotational power for driving the traveling member 20.

  As shown in FIG. 4, the first output shaft 27a is operatively connected to the transmission input shaft 32 via a traveling endless body transmission mechanism 400 such as a pulley transmission mechanism.

  The first output shaft 27a also outputs a working system rotational power for driving the threshing device 200 and the reaper 100.

  In the present embodiment, the working system rotational power is transmitted to the threshing apparatus 200 and the reaping apparatus 100 via a pipe shaft 500 which is externally rotatably mounted on one side of the Karino shaft 281 in the machine width direction. It has become so.

  That is, as shown in FIG. 4, the Karino shaft 281 is supported by a machine frame forming the handling chamber 201 so as to be rotatable around an axis. The pipe shaft 500 is externally rotatably mounted on a portion extending from the frame to one side in the machine width direction (one side of the Karino shaft 281 in the machine width direction).

  In such a configuration, the first output shaft 27a is operatively connected to the pipe shaft 500 via a first working system endless body transmission mechanism 410 such as a pulley transmission mechanism.

  In addition, as shown in FIG. 4, the first working system endless power transmission mechanism 410 transmits the engine 25 from the engine 25 to the threshing device 200 and the reaper 100 in accordance with an operation on the threshing clutch operation member 45. A threshing clutch 290 for engaging and disengaging power transmission is interposed.

  Further, in the combine 1, as shown in FIG. 4, in front of the handling room 201, a handling cylinder input shaft 510 is provided along the body width direction.

  As shown in FIGS. 4, 5, and 7, the handle cylinder input shaft 510 is supported by a transmission case 520 disposed in front of the handle chamber 201 so as to be rotatable around an axis.

  In more detail, the handling cylinder input shaft 510 has one side in the machine width direction extending outward from the transmission case 520, and is located in a gap between the operation unit 40 and the threshing apparatus 200 in the machine width direction; The other side in the machine body width direction is inserted into the transmission case 520 and is supported by the transmission case 520 so as to be rotatable around an axis.

  In such a configuration, the pipe shaft 500 is operatively connected to the handle input shaft 510 via a second working system endless body transmission mechanism 420 such as a pulley transmission mechanism.

  As shown in FIG. 4, the handle cylinder shaft 210 has a front end protruding into the transmission case 520, and is operatively connected to the handle cylinder input shaft 510 in the transmission case 520.

  More specifically, as shown in FIG. 4, the other side in the machine width direction of the handle cylinder input shaft 510 is terminated in the transmission case 520, and the handle cylinder shaft 210 is connected to the handle cylinder shaft 210 via a bevel gear mechanism 530 in the transmission case. Operatively connected to the front end of the vehicle.

  Further, in the combine 1, a working system extending in the machine width direction in a state where one side in the machine width direction is connected to the other side in the machine width direction of the handling cylinder input shaft 510 in the transmission case 520 so as to be relatively non-rotatable around an axis. A transmission shaft 540 is provided, and rotational power from the engine 25 is transmitted to the reaper 100 and the sorting mechanism 250 via the work system transmission shaft 540.

  In the present embodiment, the working system transmission shaft 540 is connected to the handling cylinder input shaft 510 using the bevel gear mechanism 530 so that the working system transmission shaft 540 cannot rotate relative to the axis.

  That is, the drive-side bevel gear of the bevel gear mechanism 530 is provided with a spline hole into which the other side in the machine width direction of the handle cylinder input shaft 510 is inserted so as to be relatively non-rotatable. The side is inserted into the spline hole of the drive-side bevel gear, so that the handle-side input shaft 510 is connected to the handle cylinder input shaft 510 so that it cannot rotate relative to the axis.

Next, a transmission structure from the working system transmission shaft 540 to the reaper 100 will be described.
As described above, the combine 1 has the front rotor mechanism 160, and power is transmitted from the work system transmission shaft 540 to the reaper 100 via the front rotor drive shaft 161.

  The working system transmission shaft 540 is operatively connected to the front rotor drive shaft 161 via a third working system endless body transmission mechanism 430 such as a pulley transmission mechanism.

  As shown in FIG. 4, the third working system endless body transmission mechanism 430 is provided with a cutting clutch 190 for engaging and disengaging power transmission in accordance with an operation on the cutting clutch operating member 46. .

  The front rotor drive shaft 161 is operatively connected to the cutting input shaft 116 via a fourth working system endless body transmission mechanism 440 such as a sprocket transmission mechanism.

  In this embodiment, as shown in FIG. 4, a forward / reverse switching mechanism 170 is interposed between the front rotor drive shaft 161 and the cutting input shaft 116, and the fourth working system endless. The body transmission mechanism 440 transmits rotational power from the front rotor drive shaft 161 to the forward / reverse switching mechanism 170.

Specifically, a cutting transmission shaft 105 is disposed coaxially with the cutting input shaft 116 on the other side in the machine width direction of the cutting input shaft 116, and the front rotor drive shaft 161 is connected to the fourth working system transmission mechanism 455. Through the cutting power transmission shaft 105.
The forward / reverse switching mechanism 170 is interposed between the mowing transmission shaft 105 and the mowing input shaft 116.

  The grain header 120 is provided with a header drive shaft 121 extending in the machine width direction and a scraping shaft 122 extending in the machine width direction while supporting the scraping auger 125. Is operatively connected to the header drive shaft 121 via a header drive chain 460, and the header drive shaft 121 is operatively connected to the sweep shaft 122 via a sweep drive chain 461.

The raking shaft 122 is operatively connected to a reel shaft 131 that supports the raking reel 130.
Specifically, the scraping shaft 122 is operatively connected to an intermediate shaft 466 via a first reel drive chain 465, and the intermediate shaft 466 is operatively connected to the reel shaft 131 via a second reel drive chain 467. .

  Further, the header drive shaft 121 is operatively connected to the cutting blade 140 via a cutting blade drive crank mechanism 470.

Next, a transmission structure from the working system transmission shaft 540 to the sorting mechanism 250 will be described.
As shown in FIG. 4, the working system transmission shaft 540 is also operatively connected to the Karamine shaft 281 via a fifth working system endless body transmission mechanism 450 such as a pulley transmission mechanism.

  In the present embodiment, as shown in FIG. 4, the first conveyor mechanism 310, the fried conveyor mechanism 320, the second conveyor mechanism 330, and the second reduction conveyor mechanism 340 via the Karamin shaft 281. And, the rotational power is operatively driven to the swing sorting shaft 261.

  Specifically, as shown in FIG. 4, the first conveyor mechanism 310 includes a first conveyor shaft 311 provided in the first gutter 301 and a first conveyor 312 provided on the first conveyor shaft 311. And

  The fry conveyor mechanism 320 has a lower end communicated with one side in the machine width direction of the first gutter 301 and an upper end disposed in a fryer cylinder 325 communicated with an input port of the Glen tank 50. It has a frying shaft 321 operatively connected to the first conveyor shaft 311 and a frying conveyor 322 provided on the frying shaft 321.

  The second conveyor mechanism 330 has a second conveyor shaft 321 disposed in the second gutter 302 and a second conveyor 322 provided on the second conveyor shaft 321.

  The second reduction conveyor mechanism 340 includes a second reduction cylinder 345 having a lower end communicating with one side of the second gutter 302 in the machine width direction and an upper end opening toward the sorting start end of the swing sorter 265. And a second reduction shaft 341 provided on the second reduction shaft 341 and having a lower end operatively connected to the second conveyor shaft 321.

  In such a configuration, the other side in the machine width direction of the Karino shaft 281 is operatively connected to the other side in the machine width direction of the first conveyor shaft 311 and the second conveyor shaft 321 via a conveyor pulley transmission mechanism 480. .

  Further, the other side of the second conveyor shaft 321 in the body width direction is operatively connected to the other side of the swing selection shaft 261 in the body width direction via a swing selection pulley transmission mechanism 485.

Hereinafter, a detailed structure of the handling cylinder 600 according to the present embodiment will be described.
5 and 6 show a side view and a perspective view of the handling cylinder 600, respectively.
7 to 9 show cross-sectional views taken along the lines VII-VI, VIII-VIII, and IX-IX in FIG. 5, respectively.
10 and 11 are exploded perspective views of the handling cylinder 600. FIG.

  As shown in FIGS. 10 and 11 and the like, the handling cylinder 600 is wound around the front plate 620 and the rear plate 630 fixed to the handling cylinder shaft 210, and the front plate 620 and the rear plate 630. It includes a shielding plate 650 and a plurality of tooth handling frames 700 detachably fixed to an outer surface of the shielding plate 650.

As shown in FIGS. 10 and 11, the front plate 620 includes a front-side radially extending portion 621 supported by the handle cylinder shaft 210 so as to be relatively non-rotatable, and a front peripheral portion extending in the circumferential direction of the handle cylinder shaft 210. And a direction extending portion 625.
In the present embodiment, the front circumferentially extending portion 625 is fixed to the rear surface of the front radially extending portion 621 by welding or the like.

The rear plate 630 includes, as shown in FIGS. 10 and 11, a rear radial extension 631 fixed to the handle cylinder shaft 210 so as to face the front radial extension 621, And a rear circumferentially extending portion 635 extending in the circumferential direction of the handling cylinder shaft 210.
In the present embodiment, the rear circumferential extension 635 is fixed to the front surface of the rear radial extension 621 by welding or the like.

  The shielding plate 650 is wound around the front plate 620 and the rear plate 630 so as to cooperate with the front plate 620 and the rear plate 630 to form an internal space that covers around the handle shaft 210. ing.

As shown in FIGS. 8 to 11, the shielding plate 650 includes a plurality of divided shielding plates that are divided in the circumferential direction of the handling cylinder shaft 210.
In the present embodiment, the shielding plate 650 has first and second shielding plates 650 (1) and 650 (2) that are substantially divided into two in the circumferential direction of the handling cylinder shaft 210.

  The tooth handling frame 700 includes a long support bar 710 and a plurality of teeth 730 arranged with a gap along the longitudinal direction of the support bar 710.

  As shown in FIGS. 5 to 11, the plurality of tooth handling frames 700 are arranged such that the support bar 710 of each of the plurality of tooth handling frames 700 is substantially parallel to the handling cylinder shaft 210. In a state where the plurality of teeth 730 extend radially outward and are spaced apart from each other, they are detachably fixed to the front plate 620 and the rear plate 630 with the shielding plate 650 sandwiched therebetween. ing.

FIG. 12 is an enlarged perspective view of the tooth handling frame 700.
As shown in FIGS. 10 to 12 and the like, the support bar 710 is separated from a long bar main body 711 to which the plurality of handling teeth 730 are fixed in the longitudinal direction of the bar main body 711. And a plurality of mounting brackets 715 provided on the bar main body 711.

In the present embodiment, as shown in FIG. 12, the bar main body 711 is a hollow square pipe.
That is, when the bar main body 711 is attached to the handling cylinder 600, the lower wall and the upper wall 711 a and 711 b located inside and outside in the radial direction of the handling cylinder shaft 210, respectively, It has first and second side walls 711c and 711d located on one side and the other side in the circumferential direction of 210, respectively.

  The mounting bracket 715 has a front mounting bracket 715F and a rear mounting bracket 715R provided at the same position as the front plate 620 and the rear plate 630 in the axial direction of the handle cylinder shaft 210, respectively.

  Each of the front mounting bracket 715F and the rear mounting bracket 715R includes first and second mounting pieces 715a extending to one side and the other side in the width direction of the bar main body 711 with the low wall 711a of the bar main body 711 interposed therebetween. 715b, a first connecting piece 715c connecting the first side wall 711c of the bar body 711 and the first mounting piece, and a second connecting piece 715c connecting the second side wall of the bar body 711 and the second mounting piece 715b. And a connecting piece 715d.

FIG. 13 is a sectional view taken along the line XIII-XIII in FIG.
As shown in FIG. 13, the plurality of handling teeth 730 have lower end portions extending from the low wall 711 a of the bar main body 711 inward in the radial direction of the handle barrel shaft 210 and upper end portions of the bar main body 711. The bar body 711 is fixed to the lower wall 711a and the upper wall 711b of the bar main body 711 by welding or the like while extending from the upper wall 711b radially outward of the handle cylinder shaft 210.

  As shown in FIG. 13, the mounting bracket 715 has a gap 765 between the low wall 711 a of the bar main body 711 and the shielding plate 650 so that the lower end of the tooth 730 does not interfere with the shielding plate 650. It is configured so that the bar main body 711 can be disposed on the shielding plate 650 while still existing.

Note that FIG. 13 illustrates the following second intermediate mounting bracket 715C (2) optionally provided in the handling cylinder 600 according to the present embodiment.
The second intermediate mounting bracket 715C (2) and the first intermediate mounting bracket 715C (1) described below have the same configuration as the front mounting bracket 715F and the rear mounting bracket 715R.

  In the present embodiment, the tooth handling frame 700 is disposed on the outer surface of the shielding plate 650 wound around the front mounting bracket 620 and the rear mounting bracket 630, and sandwiches the shielding plate 650. In this state, it is detachably fixed to the front plate 620 and the rear plate 630.

  More specifically, mounting holes 717 (see FIG. 12) through which fastening members 720 such as bolts are inserted are formed in the first and second mounting pieces 715a and 715b of the mounting bracket 715.

  The plurality of divided shielding plates 650 (1) and 650 (2) constituting the shielding plate 650 are supported in a state wound around the front circumferential extending portion 625 and the rear circumferential extending portion 635. A through hole 652 (see FIGS. 10 and 11) is formed at a position facing the mounting hole 717 of the mounting bracket 715.

  Further, mounting holes 627 are formed in the front circumferential extending portion 625 and the rear circumferential extending portion 635 at positions corresponding to the mounting holes 717 of the mounting bracket 715.

  In such a configuration, the plurality of divided shielding plates 650 (1) and 650 (2) are wound around the front circumferential extending portion 625 and the rear circumferential extending portion 635. The plurality of tooth handling frames 700 disposed on the outer surfaces of the plates 650 (1) and 650 (2) are provided with mounting holes 717 of the mounting bracket 715, through holes 652 of the shielding plate 650, and of the front plate 620. Through the mounting hole 627 and the fastening member 720 inserted into the mounting hole 627 of the rear plate 630, the front circumferential extension extends with the plurality of divided shield plates 650 (1) and 650 (2) interposed therebetween. It is detachably fixed to the existing portion 625 and the rear circumferential extending portion 635.

  Here, as shown in FIG. 7 to FIG. 11, the handling cylinder is arranged such that a plurality of the tooth handling frames 700 exist on the outer surface of each of the plurality of divided shielding plates 650 (1) and 650 (2). The number of the tooth handling frames 700 provided in 600 is greater than the number of the divided shielding plates 650 (1) and 650 (2).

As described above, in the present embodiment, the shielding plate 650 has the two divided shielding plates of the first and second divided shielding plates 650 (1) and 650 (2). , Six tooth handling frames 700 are provided.
In this case, three tooth handling frames 700 are arranged on the outer surface of each divided shield plate 650 (1), 650 (2).

  According to such a configuration, by providing the shielding plate 650, the effect of effectively preventing the intrusion of the harvested grain culm into the internal space of the handling drum 600 is obtained, and the maintenance and / or maintenance of the tooth handling frame 700 is achieved. Exchange can be easily performed.

That is, the handling teeth 730 may be worn or damaged in the handling processing of the cut grain culm.
In the present embodiment, a plurality of (three in the illustrated embodiment) toothing is provided on the outer surface of each of the plurality of divided shielding plates 650 (1) and 650 (2) constituting the shielding plate 650. A frame 700 is arranged, and one divided shielding plate 650 (1), 650 (2) is attached to the front plate 620 and the rear plate 630 by the plurality of (three in the illustrated form) toothing frames 700. It is detachably fixed via a fastening member 720.

In such a configuration, only the one tooth handling frame 700 including the worn or damaged tooth handling 730 is divided into the front plate by the divided shielding plates 650 (1) and 650 (2) by the remaining tooth handling frame 700. It can be removed while being attached to the rear plate 620 and the rear plate 630.
Therefore, maintenance and / or replacement of the tooth management frame 700 having the tooth management 730 can be easily performed.

In this embodiment, as shown in FIG. 5 and FIG. 6, at least one of the plurality of divided shielding plates 650 (1) and 650 (2) opens the internal space of the handling cylinder 600 outward. An opening (not shown) is provided, and the opening is covered by a cover 655 which is detachably attached to the divided shield plate via a fastening member 656.
According to such a configuration, workability when it is necessary to access the internal space of the handling drum 600 can be improved.

In the present embodiment, as shown in FIGS. 7 to 9 and the like, the front circumferentially extending portion 625, the rear circumferentially extending portion 635, and the shielding plate 650 have a plurality of radially outwardly facing members. Has a polygonal shape when viewed along the axial direction of the handle cylinder shaft 210 so that the flat surfaces of the handle cylinder shaft 210 are arranged in the circumferential direction of the handle cylinder shaft 210.
In the present embodiment, the front circumferentially extending portion 625, the rear circumferentially extending portion 635, and the shielding plate 650 have twelve surfaces when viewed along the axial direction of the handle shaft 210. It has a dodecagonal shape in which flat surfaces 800 are arranged in the circumferential direction.

  In addition, the plurality of tooth handling frames 700 are arranged such that the support bar 710 is positioned on the flat surface 800 of the shielding plate 650, and the front-side circumferential extending portion 625 and the rear peripheral extending portion 625 sandwich the shielding plate 650. It is detachably fixed to the corresponding flat surface 800 of the side circumferential extension 635.

According to such a configuration, the following effects can be obtained.
That is, as described above, in the present embodiment, the tooth handling frame 700 is located on the outer surface of the shielding plate 650 and the front plate together with the shielding plate 650 via the mounting bracket 715. 620 and the rear plate 630.

  In such a configuration, as shown in FIG. 13, the outer surface of the shielding plate 650 and the outer surface of the bottom wall 711a of the bar main body 711 (with respect to the radial direction of the A gap 765 can be generated between the gap 765 and the surface facing inward in the radial direction.

  If the harvested grain culm is caught in the gap 765 during the threshing process on the harvested grain culm by the handling cylinder 600, a load is applied to the transmission structure of the handling cylinder 600 and the threshing efficiency may be deteriorated.

  In this regard, as in the present embodiment, when the plurality of tooth handling frames 700 are located on the flat surface 800 of the shielding plate 650, they are located between the adjacent flat surfaces 800 of the shielding plate 650. The corner 810 guides the harvested grain stalk radially outward and can effectively prevent the harvested culm from being caught in the gap 765.

  Preferably, the flat surface 800 of the front circumferential extending portion 625, the rear circumferential extending portion 635, and the shielding plate 650 is the same as the number of the plurality of tooth handling frames 700 provided in the handling cylinder 600. The number of surfaces is doubled.

  As shown in FIG. 7 to FIG. 9 and the like, the handling cylinder 600 according to the present embodiment has six tooth handling frames 700. Therefore, the flat surface 800 is twelve.

  In addition, one tooth handling frame 700 is located on one flat surface of the shielding plate 650, and the next tooth handling frame adjacent to one circumferential side of the tooth handling shaft 210 from the one tooth handling frame 700. The frame 700 is located on the second flat surface 800 adjacent to the one side in the circumferential direction of the handling cylinder shaft 210 from the one flat surface 800.

  Further, in the present embodiment, as shown in FIGS. 7 to 9 and the like, the mounting bracket 715 is configured to fit within the corresponding flat surface 800 in the circumferential direction of the handling cylinder shaft 210. As a result, the work of attaching and detaching the tooth handling frame 700 is facilitated.

  In this embodiment, as shown in FIGS. 10 and 11, the handle cylinder 600 is supported by the handle cylinder shaft 210 between the front plate 620 and the rear plate 630 so as to be relatively non-rotatable. The first intermediate plate 640 (1), and the second intermediate plate 640 (2) supported between the first intermediate plate 640 (1) and the rear plate 630 by the handle cylinder shaft 210 so as to be relatively non-rotatable. ) Are provided.

Each of the first and second intermediate plates 640 (1) and 640 (2) includes an intermediate radially extending portion 641 supported by the handle cylinder shaft 210 so as to be relatively non-rotatable, and a periphery of the handle cylinder shaft 210. And an intermediate circumferential extending portion 645 extending in the direction.
In this case, the plurality of divided shielding plates 650 (1) and 650 (2) constituting the shielding plate 650 are provided in addition to the front circumferential extending portion 625 and the rear circumferential extending portion 635. The first and second intermediate plates 640 (1) and 640 (2) are also wound around the intermediate weekly extending portion 645.

  In the present embodiment, as shown in FIG. 5, FIG. 6, FIG. 10, and FIG. 11, the mounting bracket 715 provided on the support bar 710 includes the front mounting bracket 715F and the rear mounting bracket 715R. In addition, the first and second intermediate plates 640 (1) and 640 (2) have first and second intermediate mounting brackets which are detachably connected via fastening members 720, respectively. ), 715C (2).

  That is, in the present embodiment, the mounting bracket 715 provided on the support bar 710 is configured such that the front plate 620, the first intermediate plate 640C (1), and the The front mounting bracket 715F, the first intermediate mounting bracket 715C (1), the second intermediate mounting bracket 715C (2) and the second intermediate plate 640C (2) and the first intermediate mounting bracket 715C (1) arranged at the same position as the rear plate 630, respectively. It has a rear mounting bracket 715R.

  The plurality of divided shielding plates 650 (1) and 650 (2) constituting the shielding plate 650 include the front circumferential extending portion 625 and the intermediate circumferential extension of the first intermediate plate 640C (1). Part 645, the first and second intermediate mounting brackets 715 </ b> C (1) wound around the intermediate circumferential extension 645 and the rear circumferential extension 635 of the second intermediate plate 640 </ b> C (2). ), 715C (2) also have through holes 652 (see FIGS. 10 and 11) at positions corresponding to the mounting holes 717.

  The first and second intermediate mounting portions respectively correspond to the intermediate circumferentially extending portion 645 of the first intermediate plate 640 (1) and the intermediate circumferentially extending portion 645 of the second intermediate plate 640 (2). A mounting hole is formed in the bracket 715 at a position facing the mounting hole.

  In such a configuration, the tooth handling frame 710 is disposed on the shielding plate 650 and, in addition to the front and rear plates 620 and 630 via a fastening member 720, in addition to the first and second intermediate members. It is also detachably fixed to the plates 640C (1) and 640C (2).

  As shown in FIG. 5 and the like, in the handling drum 600 according to the present embodiment, in addition to the handling portion 600B formed by the shielding plate 650 and the tooth handling frame 700, the handling cylinder 600 is located forward of the handling portion 600B. Further, a raking unit 600A that conveys the harvested grain culm toward the gripping unit 600B with the rotation of the gripping cylinder shaft 210 is provided.

The raking unit 600A is a plurality of spiral blades 760 that convey the harvested grain culm toward the gripping unit 600B according to the rotation of the gripping cylinder shaft 210, such as around the axis of the gripping cylinder shaft 210. It has a plurality of spiral blades 760 arranged at intervals.
In the present embodiment, as shown in FIGS. 5 to 11 and the like, the raking unit 600 </ b> A is supported by the handle cylinder shaft 210 so as not to rotate relatively, and a rear end surface of the raking unit 600 </ b> A is connected to the front plate 620 via a fastening member. A plurality of spiral blades 760 are provided on the outer peripheral surface of the drum body 750.

210 Handling cylinder shaft 600 Handling cylinder 620 Front plate 621 Front radial extension 625 Front circumferential extension 630 Rear plate 631 Rear radial extension 635 Rear circumferential extension 650 Shielding plate 700 Teeth handling Frame 710 Support bar 711 Bar body 715 Mounting bracket 730 Teeth handling

Claims (2)

A front plate and a rear plate fixed to the handle cylinder shaft, a shielding plate attached to the front and rear plates so as to form an internal space covering around the handle cylinder shaft, a support bar formed of a pipe, and A plurality of tooth handling frames including a plurality of tooth handling teeth arranged with a gap along the longitudinal direction of the support bar,
In the state where the support bar is parallel to the handling cylinder axis and the plurality of handling teeth extend radially outward, the plurality of tooth handling frames are arranged on the outer surface of the shielding plate in a circumferential direction of the handling cylinder axis. A handling cylinder characterized by being arranged at intervals. The front plate has a front radially extending portion fixed to the handle cylinder shaft and a front circumferential extension portion extending in the circumferential direction of the handle cylinder shaft,
The rear plate includes a rear radial extension portion fixed to the handle cylinder shaft so as to face the front radial extension portion, and a rear circumferential extension portion extending in the circumferential direction of the handle cylinder shaft. Has,
The shielding plate is wound around the front circumferential extension and the rear circumferential extension,
The support bar has a long bar main body, and front and rear mounting brackets fixed to the bar main body,
The front circumferentially extending portion, the rear circumferentially extending portion and the shielding plate are arranged such that a surface facing radially outward is arranged in a circumferential direction of the handling cylinder shaft,
The front-side and rear-side mounting brackets are located outside the corresponding radially extending portions of the front-side and rear-side circumferentially extending portions with the bar body positioned on the radially outer surface of the shielding plate with the shielding plate interposed therebetween. The handling cylinder according to claim 1, wherein the handling cylinder is detachably fixed to each of the directions.

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