CN1852654A - Threshing unit of general-purpose combine harvester - Google Patents
Threshing unit of general-purpose combine harvester Download PDFInfo
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- CN1852654A CN1852654A CNA2004800269243A CN200480026924A CN1852654A CN 1852654 A CN1852654 A CN 1852654A CN A2004800269243 A CNA2004800269243 A CN A2004800269243A CN 200480026924 A CN200480026924 A CN 200480026924A CN 1852654 A CN1852654 A CN 1852654A
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- helix drum
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/18—Threshing devices
- A01F12/20—Threshing cylinders with ribs
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- Threshing Machine Elements (AREA)
Abstract
A grain thresher for a general-purpose combine, where required power is reduced as far as possible by optimizing a relationship between an auger and comb teeth that constitute a screw rotor. Further, a relationship structure between the auger and the comb teeth is improved so that selecting capabilities are not impaired even if the required power is reduced. A screw rotor where an auger is windingly provided on the outer periphery of a rotor constructed from a rotating tube and where comb teeth are radially projected from the auger, wherein the ratio between the height of the auger windingly provided on the rotor and the amount of the projection of the comb teeth from the auger is set such that, when the height of the auger is 5, the projection amount of the comb teeth is from 1.57 to 5.4.
Description
Technical field
The present invention relates to a kind of sheller unit that is called the general-purpose combine harvester of common shaft streaming, this combine from down on the farm the paddy bar that has grain of root harvesting plantation (planting upright), and intactly put into the threshing chamber that helix drum (ス Network リ ユ one ロ one ) is rotated, The present invention be more particularly directed to be arranged on spire and threshing tooth (Xi Dentistry on the cylinder) and the structure of sending the dirt valve that is arranged on case side.
Background technology
The technology of the helix drum that uses in the sheller unit of the existing general-purpose combine harvester that is called the common shaft streaming is widely known by the people.
For example disclose the technology (with reference to patent documentation 1) that makes the threshing tooth be longer than first half from the latter half of the outstanding length of the conveyor screw (spire) of helix drum.And the diameter of latter half that also discloses the cylindrical shell that makes helix drum is less than the technology (with reference to patent documentation 2) of first half diameter.
Patent documentation 1: open flat 5-2639 communique in fact
Patent documentation 2: the spy opens flat 10-337119 communique
But, in existing technology, do not have the relation of the overhang of the height of spire (spiral) of clear and definite helix drum and threshing tooth, the most appropriate unclear relation.
Summary of the invention
The present invention is in the sheller unit of general-purpose combine harvester, and it is the most appropriate that the relation of the spire that constitutes helix drum and threshing tooth is formed, and reduces required power as far as possible.
Even and improved and reduced required power, also do not reduce the spire of separation performance and the dependency structure of threshing tooth.
And, constitute and make that the guiding mechanism that send the dirt valve that is arranged on helix drum top is consistent with the variation of the structure of helix drum, that required power is dropped to is minimum.
The problem that the present invention will solve below describes with regard to the method that solves this problem as mentioned above.
Promptly, the sheller unit of general-purpose combine harvester of the present invention, has helix drum, this helix drum is reeled on the periphery of the cylinder that is made of rotating cylinder and is provided with spire, be provided with the threshing tooth from this spire to the radiation direction is outstanding, in this helix drum, the height that is arranged on the spire on the cylinder of reeling with ratio from the overhang (going out generation) of the outstanding threshing tooth of this spire is, height with respect to spire is 5, and the overhang of threshing tooth is greater than 1.57, smaller or equal to 5.4.
And, has helix drum, this helix drum is reeled on the periphery of the cylinder that is made of rotating cylinder and is provided with spire, from this spire to the outstanding threshing tooth that is provided with of radiation direction, in this helix drum, the height be arranged on the spire on the cylinder of reeling is approximately 5 to 3 with ratio from the overhang of the outstanding threshing tooth of this spire.
And, have helix drum, this helix drum is reeled on the periphery of the cylinder that the rotating cylinder by specified diameter constitutes and is provided with spire, gives prominence to being provided with the threshing tooth to the radiation direction from this spire, in this helix drum, the not enough 54mm of height that reels and be arranged on the spire on the cylinder.
And the height of above-mentioned spire is more than or equal to 34mm.The height of above-mentioned spire preferably is approximately 44.0mm.
And, be extruded with a plurality of dirt valves that send towards the outer circumferential side of above-mentioned cylinder, after roughly rectangular direction is gone forward with respect to cylinder axis, send the angle initialization with respect to the rectangular direction of cylinder axis of dirt valve to be this:, little in the downstream at threshing upstream side, big on throughput direction.
And, has helix drum, on the periphery of this cylinder, reel and be provided with spire, from this spire to the outstanding threshing tooth that is provided with of radiation direction, in helix drum, helix drum is crossed over whole length be divided into three sections,, many threshing teeth are set on a circumference from first section and second section in the place ahead; In the 3rd section, on a circumference, be provided with than an above-mentioned few threshing tooth of threshing number of teeth amount that manys, simultaneously, a plurality of dirt valves that send are set in that the threshing tube of the rotation periphery of helix drum is indoor.
The quantity of the threshing tooth of above-mentioned first section is set to 8, and the quantity of the threshing tooth of the 3rd section is set to the 4-8 root.
In sending the dirt valve, can change the angle of sending the dirt valve of the angle of sending the dirt valve, second section and the 3rd section of first section respectively by operating means, this angle operating means is arranged on the driver's seat next door.
As mentioned above, the sheller unit of general-purpose combine harvester of the present invention, has helix drum, this helix drum is reeled on the periphery of the cylinder that is made of rotating cylinder and is provided with spire, from this spire to the outstanding threshing tooth that is provided with of radiation direction, in this helix drum, the height that coiling is arranged on the spire on the cylinder with ratio from the overhang of the outstanding threshing tooth of this spire is, height with respect to spire is 5, the overhang of threshing tooth is greater than 1.57, smaller or equal to 5.4, therefore, can make threshing property retention present situation, make the required power of helix drum rotation be lower than existing general-purpose combine harvester.
And, has helix drum, this helix drum is reeled on the periphery of the cylinder that is made of rotating cylinder and is provided with spire, from this spire to the outstanding threshing tooth that is provided with of radiation direction, in this helix drum, the height be arranged on the spire on the cylinder of reeling is approximately 5 to 3 with ratio from the overhang of the outstanding threshing tooth of this spire, therefore, can make threshing property retention present situation, make stable performance, reduce the required power of helix drum rotation.
And, has helix drum, this helix drum is reeled on the periphery of the cylinder that the rotating cylinder by specified diameter constitutes and is provided with spire, from this spire to the outstanding threshing tooth that is provided with of radiation direction, in this helix drum, coiling is arranged on the not enough 54mm of height of the spire on the cylinder, therefore, can reduce the required drive of drum shaft.
And because therefore the height of above-mentioned spire, can simultaneously reduce the required drive amount of drum shaft more than or equal to 34mm, one side makes threshing property retention present situation.
Owing to make the height of above-mentioned spire be approximately 44mm, therefore, required drive can the highest efficient transmit to drum shaft, can make threshing property retention present situation, stability, reduction power.
And, be extruded with a plurality of dirt valves that send towards the outer circumferential side of above-mentioned cylinder, after roughly rectangular direction is gone forward with respect to cylinder axis, send the angle initialization with respect to the rectangular direction of cylinder axis of dirt valve to be this: at threshing upstream side, big on throughput direction, little in the downstream, therefore can reduce required drive.
And, has helix drum, on the periphery of this cylinder, reel and be provided with spire, from this spire to the outstanding threshing tooth that is provided with of radiation direction, in helix drum, helix drum is crossed over whole length be divided into three sections,, many threshing teeth are set on a circumference from first section and second section in the place ahead; In the 3rd section, on a circumference, be provided with than an above-mentioned few threshing tooth of threshing number of teeth amount that manys, simultaneously, a plurality of dirt valves that send are set in that the threshing tube of the rotation periphery of helix drum is indoor, therefore, in order to reduce the required drive of helix drum, the ratio of the height A by changing spire 3 and the overhang B of threshing tooth 2 can make No. three losses (three kinds of ロ ス) of generation be reduced to existing identical with No. four (4 kinds of ロ ス) losses.
Because making the quantity of the threshing tooth of first section is 8, the quantity of the threshing tooth of the 3rd section is the 4-8 root, therefore, in order to reduce the required drive of helix drum, the ratio of the height A by changing spire 3 and the overhang B of threshing tooth 2 can make No. three losses of generation be reduced to existing identical with No. four losses.
Owing to can change the angle of sending the dirt valve of above-mentioned first section and the angle of sending the dirt valve of second section and the 3rd section respectively by operating means, and this angle operating means is arranged on driver's seat next door, therefore, can cooperate the growth conditions of the kind of cereal or cereal or harvesting state etc., change the angle of sending the dirt valve arbitrarily, can leave driver's seat around carry out operatively easily carrying out this change operation to the fuselage sidepiece from driver's seat.And, owing to can operate first section, second section and the 3rd section respectively, therefore, can cooperate the kind of grain and state etc. to change, in order further to improve the required drive of threshing performance, reduction helix drum, the ratio of the height A by changing spire 3 and the overhang B of threshing tooth 2 can make No. three losses of generation be reduced to existing identical with No. four losses.
Description of drawings
Fig. 1 is the partial sectional view of the whole side of expression general-purpose combine harvester.
Fig. 2 is the vertical view that expression is arranged on the helix drum on the sheller unit of general-purpose combine harvester of the present invention.
Fig. 3 is the vertical view of expression helix drum and the position relation of sending the dirt valve.
Fig. 4 is that expression will send the dirt valve to be divided into the vertical view of the three groups of structures that can adjust respectively.
Fig. 5 is the end view of the fore-end of helix drum.
Fig. 6 is the front view of the fore-end of this helix drum.
Fig. 7 is that expression will be installed in threshing tooth 2 on the spire 3 of helix drum is provided with 8 structure on circumference front view.
Fig. 8 is the front view that the state of 4 threshing teeth 2 is set on the circumference of spire 3.
Fig. 9 is (a) notch board (コ Application ゲ one Block) and (b) amplification front elevation of the situation of wrinkle gauze that the height relationships of the height of spire 3 and threshing tooth 2 is shown.
Figure 10 is the side view cutaway drawing of stiffener 41 between expression spire 3 and threshing tooth 2 and spire.
Figure 11 is the front view of expression helix drum, threshing tooth 2 and the position relation of sending grey valve.
Figure 12 is the front view of the relation of expression helix drum and spire 3 and threshing tooth 2.
Figure 13 takes off (a) notch board G and (b) stereogram of wrinkle gauze state.
Figure 14 is the amplification stereogram of this notch board G.
Figure 15 is the vertical view that expression can be adjusted other embodiment that send the dirt valve.
Figure 16 is that expression can be adjusted and send the dirt valve angle, makes anterior four angle greater than vertical view and the end view of the embodiment of the angle at five at rear portion.
Figure 17 is expression constitutes the state of notch board G with vertical pole lattice bar 5 and horizontal tabular lattice bar 7,8 an expansion stereogram.
Figure 18 is the front view of the stationary state of the tabular lattice bar 8 of expression end cross and vertical pole lattice bar 5.
Figure 19 is the front view of the stationary state of the tabular lattice bar 7 of expression intermediate lateral and vertical pole lattice bar 5.
Figure 20 is that power reduction amount and the grain that expression changes under the situation of sending dirt valve angle and spire height reclaims the relation of loss, is the figure of condition with the transverse axis.
Figure 21 is that power reduction amount and the grain that expression changes under the situation send dirt valve angle and spire height reclaims the relation of loss, with transverse axis for sending the dirt valve opening, increased the angle front portion of sending the dirt valve and be 8 degree, pars intermedia and be 4 spend, the rear portion is 4 figure when spending.
Figure 22 is that power reduction amount and the grain that expression changes under the situation send dirt valve angle and spire height reclaims the relation of loss, with transverse axis for sending the dirt valve opening, increased the angle front portion of sending the dirt valve and be 8 degree, pars intermedia and be 8 spend, the rear portion is 4 figure when spending.
Figure 23 is that power reduction amount and the grain that expression changes under the situation send dirt valve angle and spire height reclaims the relation of loss, with transverse axis for sending the dirt valve opening, increased the angle front portion of sending the dirt valve and be 8 degree, pars intermedia and be 7 spend, the rear portion is 6 figure when spending.
Figure 24 is the relation of expression when the paddy rice of other kinds is carried out threshing, and transverse axis is the figure of condition.
Figure 25 is the relation of expression when the paddy rice of other kinds is carried out threshing, and transverse axis is the figure that send the dirt valve opening.
Figure 26 is the relation of expression when the paddy rice of other kinds is carried out threshing, and transverse axis is the figure that send the dirt valve opening, increased test data.
Figure 27 is the spire height of expression common species and the graph of a relation of grain loss reduction amount.
Figure 28 is the difficult spire height of planting of expression threshing and the graph of a relation of grain loss reduced rate.
Figure 29 is the spire height of expression common species and the graph of a relation of power reduction amount.
Figure 30 is the difficult spire height of planting of expression threshing and the graph of a relation of power reduced rate.
Figure 31 is the graph of a relation of the aperture of sending the dirt valve of expression spire height and dynamic reduction effect of beginning and tier pole mouth loss reduction effect.
Figure 32 is expression spire height and send the graph of a relation of dirt valve opening with the ratio of power.
Figure 33 is the graph of a relation of expression spire height and grain loss and drum shaft power ratio.
The graph of a relation of the ratio of Figure 34 ratio that to be expression spire height fracture with paddy bar with respect to present situation, damaged kernel, the ratio of branch stalk grain.
Figure 35 be expression with the ratio of spire height and the overhang of threshing tooth and with the present situation of the proportionate relationship of drum shaft power and the figure that the present invention compares.
Figure 36 be expression spire height with the ratio of the overhang of threshing tooth and with the present situation of the relation of tier pole mouth loss ratio and the figure that the present invention compares.
Figure 37 is that the threshing tooth of expression rear portion threshing tube chamber L3 is the figure of the drum shaft power ratio under 8 and 4 the situation.
Figure 38 is that the threshing tooth of expression rear portion threshing tube chamber L3 is the figure that Wholegrain under 8 and 4 the situation loses ratio.
Embodiment
Below describe with regard to the working of an invention mode.
Fig. 1 explanation is equipped with the overall structure of the general-purpose combine harvester of auxiliary mower M.In addition, be that the place ahead describes with the direction of advance of fuselage (left of Fig. 1 paper to).
On crawler type running device 15, be mounted with sheller unit.Make material feeding box 16 forwards outstanding from this sheller unit, at the front end of this material feeding box 16 platform 14 is set, in this platform 14, screw mechanism 20 is set.Front end in the preceding bottom of this platform 14 is arranged on main cutter 19 on the whole harvesting width, and in the front part sides of main cutter 19 the careless device 18 of branch is set.
And above main cutter 19 and the careless device 18 of branch, be provided with and take off drum apparatus 21.Material feeding box 16, platform 14, screw mechanism 20, take off drum apparatus 21, main cutter 19 and divide careless device 18 etc. partly to constitute reaping part K.And, liftably support by the part of oil hydraulic cylinder 17 with this reaping part K.
On grain case 24, be provided with grain and discharge spire 23, and, in the anterior position of grain case 24 driver's cabin 22 is set.
The present invention relates in the general-purpose combine harvester of above-mentioned formation, be arranged on the helix drum of sheller unit inside (threshing tube) and as receiving net (Shou Net) notch board or wrinkle gauze and the structure of sending the dirt valve.
Structure with regard to helix drum shown in Figure 2 describes.
On the periphery of the cylinder 1 that constitutes tubular, is provided with rotationally, reel and be provided with spire (helical blade) 3, outstanding be provided with threshing tooth 2, form helix drum to the radiation direction from this spire 3, this helix drum by the front and back horizontal direction be arranged on the inside of threshing tube chamber of the sheller unit of general-purpose combine harvester, helix drum axle 10 is supported on the fore-and-aft direction parallel with direction of advance by the earth's axis free to rotate on the shaft core position by being fixedly installed on.
The fore-end that constitutes the cylinder 1 (cylinder) of this helix drum forms the front end cylinder 1a of portion of taper, also is set with the front end spire 4 of the special shape (crescent) different with spire (helical blade) 3 on the part of this front end cylinder 1a of portion.This front end spire 4 is following structures, that is, can with cut off by reaping part K the paddy bar of root and grain be in the one state by sorting material income threshing tube chamber, and rearward carry unobstructedly.
And, around cylinder 1 that the rotation cylindrical body by the rear portion that is positioned at the above-mentioned front end cylinder 1a of portion constitutes, spiral helicine spire 3 with certain altitude fixed with the winding state.Between this spire 3 and spire 3, be fixed with the intensity of stiffener 41 between spire, maintenance spire 3.
And, spire 3 mainly has the effect of rearward carrying from the front portion of threshing tube chamber by sorting material, also have between the outstanding threshing tooth 2 and notch board G described later that is arranged on around this spire 3 and the spire 3, with the effect of grain threshing on paddy bar, the fringe point.Stiffener 41 has the effect of reinforcing spire 3 between spire.
In Figure 11, the structure of the fore-end of threshing tube chamber is as follows.
Under the situation of switch threshing tube cover 6, because the weight of threshing tube cover 6 is big, therefore, for auxiliary this lifting force, between the sidepiece of threshing tube cover 6 and fuselage ring, spring-loaded governor 40 is set, and, between the sidepiece of threshing tube cover 6 and fuselage ring, also be provided with threshing tube cover Lock Part 39, be used under the state that boosts, opens threshing tube cover 6 by spring-loaded governor 40, locking, make it no longer continue to open.
And, towards cylinder 1 outer circumferential side, on left and right directions roughly, be extruded with a plurality of dirt valves 13,13,11,11,12,12 that send the front and back almost parallel ... at left and right directions roughly a plurality of dirt valves 13,11,12 that send are set from the inner face of threshing tube cover 6, as the parts of the fuselage side that covers cylinder 1 top.This send dirt valve 13,11,12 to be configured to: followingly be circular-arc plate and be configured that front and back are divided into array as vertical plane, respectively via linkage by angle operating means changeable angle.In the present embodiment, as shown in Figure 3, be divided into anterior threshing tube chamber L1, the pars intermedia threshing tube chamber L2 of second section, threshing tube chamber, the rear portion L3 of the 3rd section of first section, the front portion be set on each section send dirt valve 13,13 ..., the centre send dirt valve 11,11 ..., the rear portion send dirt valve 12,12 ...
It is the center with central authorities about roughly that dirt valve 13 is sent in the front portion, can be supported rotationally front and back, and with the valve body 13a that be arranged in parallel, 13b, the linking rod 13e pivot that the end of 13c (direction of advance left side) is provided with predetermined distance and fore-and-aft direction links, send dirt valve regulation handle 9 to be connected with the front end of this linking rod 13e as the front portion of angle operating means by linking connecting rod 13d, send the rotating operation of dirt valve regulation handle 9 can change the angle that dirt valve 13 is sent in the front portion by this front portion, as shown in figure 11, the front portion is set on threshing tube cover 6 send dirt valve regulation handle guide portion 38, this front portion can be sent 9 fastenings of dirt valve regulation handle on position arbitrarily.
According to Fig. 2 to Figure 10, with regard to helix drum and send the dirt valve to describe.
As shown in Figure 2, be divided into three sections before and after the inside with threshing tube chamber for convenience's sake.That is threshing tube chamber, the rear portion L3 of the pars intermedia threshing tube chamber L2 of the anterior threshing tube chamber L1 of first section, second section and the 3rd section.
Forwardly among threshing tube chamber L1, pars intermedia threshing tube chamber L2 and threshing tube chamber, the rear portion L3, change threshing tooth 2 and the structure of sending the dirt valve respectively.
That is, sending the dirt valve forwardly among the L1 of threshing tube chamber, is that the front portion is sent on cylinder 1 front portion at rear portion of the front end cylinder 1a of portion that dirt valve 13 is arranged on taper, and this front portion send dirt valve 13 to send dirt valve regulation handle 9 to operate from the outside of threshing tube cover 6 by the front portion.The work angle that dirt valve regulation handle 9 is sent in this front portion is forwardly sent multistage fastening portion is set on the dirt valve regulation handle guide portion 38 as shown in figure 11, can set in a plurality of stages.But locking strutcture without limits.
It is 11a, 11b, five valve bodies of 11c, 11d and 11e to be connected by linking rod 11f constitute that dirt valve 11 is sent in the centre.And, the coupling part head lamp brush guard pivot that send the centre of the front end in the dirt valve 11 to send dirt valve 11a and linking rod 11f in the centre is connected with regulates the fixedly end of arm 11g, with this adjusting fixedly the other end of arm 11g be fixed on in many places (the being three places in the present embodiment) fixing hole that is arranged on the threshing tube cover 6 any one, be used for set angle.
The rear portion send dirt valve 12 to be made of 12a, 12b, 12c, 12d and five valve bodies of 12e.Connect these five rear portions by linking rod 12f and send dirt valve 12, and can rotate adjustment integratedly.
And, send on the end that the rear portion of the front end in the dirt valve 12 send dirt valve 12a and linking rod 12f at the rear portion, be provided with and regulate fixedly arm 12g, regulate fixedly arm 12g by this, utilize pin etc. to be fixed on in many places (the being three places in the present embodiment) fixing hole that is arranged on the threshing tube cover 6 any one, be used for set angle.
And, send the dirt valve as shown in figure 15, can change angle ground formation respectively at threshing upstream side and threshing downstream.
That is, the front portion send the structure of dirt valve 13 identical with the structure of above-mentioned Fig. 4 with angle adjusting mechanism (guiding mechanism of first section), and can be simultaneously the dirt valve that send of second section and the 3rd section be carried out angular adjustment.The valve body 11a that the centre send dirt valve 11 and rear portion to send dirt valve 12,11b, 11c, 11d and valve body 12a, 12b, 12c, 12d, the left and right sides central portion of 12e respectively by pivotal support in housing (fuselage) side, each valve body 11a, 11b, 11c, 11d, 12a, 12b, 12c, 12d, the end of 12e (being the direction of advance left side in the present embodiment) is distinguished pivotal support on linking rod 34, this linking rod 34 forwards extends, with the end of its front end pivotal support at binding connecting rod 35, the other end of this binding connecting rod 35 is supported on housing (fuselage) side, simultaneously, send the setting that is fixed of the rear end of dirt valve regulation handle 36 as the postmedian of angle operating means, this postmedian send the central portion of dirt valve regulation handle 36 can pass through the desired location of handle guide portion 37 fastenings in slewing area.
Like this, the front end that makes the front portion send dirt valve regulation handle 9 and postmedian to send dirt valve regulation handle 36 is forwards outstanding, extend to the driver's seat next door, operating personnel just can rotate the angle that the front portion send dirt valve regulation handle 9 and middle part to send dirt valve regulation handle 36, regulate each valve body respectively from driver's seat.For example, send dirt valve regulation handle 36 in case rotate postmedian, then linking rod 34 is moved forward and backward each valve body 11a, 11b by linking connecting rod 35 ... 12e rotates forwards, backwards, can change the angle of inclination of fore-and-aft direction.
But, above-mentioned adjusting device and unrestricted, also can be link connecting rod 13d, 35 rotation base portion be connected with the output shaft of motor, from driver's seat by governor motion CD-ROM drive motors such as handles, rotate each valve body.In addition, scale etc. is set near being preferably in handle, so that find out adjusting position easily as governor motion.
And as shown in figure 16, send the dirt valve also can constitute to make the threshing upstream side 4 and 5 of threshing downstream change angle integratedly.In this case, the angle initialization with respect to the rectangular direction of cylinder axis that send dirt valve 13,12 is become at threshing upstream side, bigger on transport direction, less in the downstream.Perhaps this is sent dirt valve 13,12 to become at threshing upstream side, bigger on transport direction with respect to the angle initialization of spire, roughly the same in the downstream.In the present embodiment, if with the rectangular direction in the axle center of cylinder 1 be left and right directions, then send dirt valve 13,13 with four of front portions ... become five greater than the rear portion to send dirt valve 1212 with respect to the angle initialization of left and right directions ... the angle with respect to left and right directions.
In Figure 19, just the structure as the notch board G of the reception net of the bottom that is arranged on helix drum of the present invention describes at Figure 13 (a), Figure 14, Figure 17.
As notch board, the prior art that is widely known by the people is to constitute notch board G with circular rod type lattice bar.But in the present invention, in this vertical pole lattice bar 5 of the axis direction that will be arranged on helix drum axle 10 position that tabular lattice bar 7 and the tabular lattice bar 8 of end cross are fixed with respect to intermediate lateral, has unique formation.
Promptly, the end, front and back of vertical pole lattice bar 5 is fixed on the inboard (cylinder side) of tabular lattice bar 7 of intermediate lateral and the tabular lattice bar 8 of end cross, simultaneously, on the part that the tabular lattice bar 8 of end cross and vertical pole lattice bar 5 are fixed, as shown in figure 18, on the inner arc face of the tabular lattice bar 8 of end cross, directly vertical pole lattice bar 5 is fixed on the installation site of regulation by welding (soldering etc.).
And, vertical pole lattice bar 5 is being fixed on the part of the tabular lattice bar 7 of intermediate lateral, as shown in figure 19, inboard at the tabular lattice bar 7 of intermediate lateral, roughly circular-arc embedded groove is formed on the installation site of regulation, to wherein embedding vertical pole lattice bar 5, the length t that makes protuberance be vertical pole lattice bar 5 diameter T half or half following, weld fixing.
In addition,, also can use the wrinkle gauze shown in Fig. 9 (b), Figure 13 (b) to replace notch board G to carry out threshing, can obtain roughly the same threshing performance as the kind that receives net.This wrinkle gauze shown in Fig. 9 (b), Figure 13 (b), wavy ordinate 25,25 ... with horizontal line 26,26 ... be woven into clathrate, integrally bending constitutes, and is fixed on every side on the screen frame 27.
And as shown in Figure 7, forwardly on threshing tube chamber L1 and the pars intermedia threshing tube chamber L2, the threshing tooth 2 on the circumference of spire 3 equally spaced is provided with several, is provided with 8 in the present embodiment.But on the L3 of threshing tube chamber, rear portion, as shown in Figure 8, half of many is set equally spaced on a circumference of spire 3, is provided with 4 in the present embodiment.
Below, just change the concrete example that power reduction amount under the above-mentioned situation of sending dirt valve angle and spire height and grain reclaims the relation of loss and describe.In addition, the length of each A-E and O are defined as follows.As shown in Figure 9, A is that spire height (playing the length of spire front end from the cylinder periphery), B are that overhang (length from the spire front end to threshing tooth front end), C from the outstanding threshing tooth of spire is to be that length, E from the inner of receiving net to the cylinder periphery is that radius roller, O are the centers of cylinder from the inner of receiving net to length, the D of threshing tooth front end.
In Figure 20, transverse axis is represented each condition (condition 1-7), and the longitudinal axis is represented the reduced rate (%) of relative conditon 1.
In this experiment, be benchmark with condition 1, this condition 1 is the value that the overhang with the spire height of existing (hereinafter referred to as present situation) and threshing tooth draws.Promptly, in Fig. 9, Figure 16, the direction that forms the right angle with the axle center O with cylinder is a benchmark, making the angle of inclination of sending the dirt valve is 0 degree, from the spire height A of cylinder surface is 54mm, from the overhang B of the outstanding threshing tooth 2 of spire 3 is 17mm, is that the value of 9000kg/h when mobile is a reference value with the full flow except grain on sheller unit.And, under the situation that changes the spire height, threshing tooth front end is necessarily (to be 10.5mm in the present embodiment) (in other words with the clearance C that receives net (notch board), if increase the spire height A, then the overhang B of threshing tooth reduces, if the opposite spire height A that reduces, then the overhang B of threshing tooth increases), under each condition with this a reference value (longitudinal axis: 0, transverse axis: condition 1) compare.In addition, the above-mentioned angle of inclination of sending the dirt valve be meant with respect to the angle of the transport direction of the rectangular direction in axle center of cylinder, in the present embodiment because the axle center of cylinder is towards fore-and-aft direction, therefore, also can be described as with respect to the angle of inclination of direction about direction of advance becomes.And the diameter of cylinder is E, makes cylinder 1 periphery and is spaced apart D, then D=A+B+C above the notch board.
Though grain loss reduces in condition 2,3,5, living load increases.
But condition 4 is that living load reduces, and grain loss roughly keeps present situation.
According to foregoing, only from Figure 20, judge, the spire height for-10mm (the spire height A is 44mm, and the overhang B of threshing this moment tooth is 27mm), to send the angle of dirt valve be 8 when spending, load and grain loss are suitable.
Fig. 1, Figure 22, Figure 23 are the data identical with Figure 20, and transverse axis is to send dirt valve opening, the longitudinal axis to be the reduced rate with respect to present situation, and each the spire height behind the dirt valve angle is sent in the expression change.And at the right-hand member of Figure 21 to each figure of Figure 23, it is 8 degree that expression spire height send the angle of dirt valve 13 for-10mm, front portion, send the result after the angle that dirt valve 11 and rear portion send dirt valve 13 in the middle of changing.
At the right-hand member of Figure 21, the angle that expression is anterior send the angle of dirt valve 13 to be 8 degree, send dirt valve 11 and rear portion to send dirt valve 12 in the middle of making is 4 results when spending.In this case, power is that present situation degree, grain loss reduce.
Figure 22 is illustrated in right-hand member to make the front portion send dirt valve 13 and middle to send the angle of dirt valve 11 be 8 degree, and it is 4 results when spending that the angle of dirt valve 12 is sent at the rear portion.In this case, power and grain loss are all low than existing.
Figure 23 is illustrated in right-hand member to make the front portion send dirt valve 13 is that to send the angle of dirt valve 11 be 7 degree 8 degree, centre, and it is 6 results when spending that the angle of dirt valve 12 is sent at the rear portion.In this case, grain loss, power reduction identical with existing degree.
Like this, send the identical or littler of dirt valve 13 with anterior, can make the loss of living load and Wholegrain be lower than present situation simultaneously by the angle of sending dirt valve 11 and rear portion to send dirt valve 12 in the middle of making.
And, above-mentioned Figure 20, Figure 21 are certain a of results (common species: the situation of paddy rice あ ゆ body り), Figure 24, Figure 25 are the situations of another b of results (threshing is difficult plants: towards light) paddy rice, carry out with above-mentioned same test after investigate, ((send under the situation of dirt valve angle 8 degree, spire height-5mm), living load and Wholegrain loss all reduce, have obtained ideal results to condition 4 to send dirt valve angle 8 degree, spire height-10mm) and condition 7.
And, in condition 8-condition 13, as can be seen in case make the spire height for just, promptly increasing height, then living load reduction, but grain loss increase.This is because the distance between spire and the notch board shortens, and has reduced the rubbing of paddy bar, the paddy bar enters between the spire, is transferred, and grain is not fallen the sorting unit side, so grain loss increases, the transmitting power load reduces.
Figure 26 is illustrated under the difficult situation of planting of threshing, improves the result that the spire height is tested, and its result in case reduce the spire height, open and send the dirt valve, then keeps threshing performance, power to reduce.
Carry out comprehensive investigation to above-mentioned, even can draw under the different situation of rice varieties, the threshing of full blast is a condition 4.That is, the angle of inclination of sending the dirt valve is 8 degree, and the short 10mm of spire aspect ratio altitude datum promptly, is 44mm.
And according to Figure 27 to Figure 29, the relation that reduces with regard to spire height, the angle of sending the dirt valve, the loss of tier pole mouth and power describes.
Figure 27, Figure 28 represent that according to the spire height of test and the relation of grain loss reduced rate the low more grain loss of spire height reduced rate is high more, in other words are exactly that grain loss reduces.In a single day promptly make the spire height be lower than present situation, then the overhang of threshing tooth increases, with the contact frequency increase of paddy bar, threshing raising, grain loss reduce.
And in case strengthen the angle of sending of sending the dirt valve, then loss increases.This is owing to the raising of conveying property, reduces in the indoor holdup time of threshing tube, so grain loss increases.
Figure 29, Figure 30 represent not send the dirt valve angle and reduction spire height according to the spire height of test and the relation of power reduced rate if do not change, and then the power reduced rate reduces.Do not send the dirt valve angle and reduction spire height if in other words do not change, then power increases.This is that resistance reduces, and reduces height, the paddy bar of spire more and is rubbed the cause that resistance is big more more owing to the circulation of the height that increases spire more, paddy bar is good more
But, if strengthen the angle of sending the dirt valve, then send the angle of dirt valve big more, it is big more that power reduces effect.This is owing to the raising of conveying property, indoor holdup time of threshing tube are reduced the cause that power reduces.This send the relation of dirt valve such as following shown in Figure 31.
Figure 31 be expression according to test, the spire height with begin to have power and reduce the graph of a relation that effect and the loss of tier pole mouth reduce the aperture of sending the dirt valve of effect, from connecting the curve of the curve point that the black square forms, downside is to have the scope that the loss of tier pole mouth reduces effect, the low more reduction effect that can bring into play grain loss more of spire height as can be seen.This be because, the cause that increases of the paddy bar degree of rubbing as mentioned above.And, from connecting the curve of the curve point of deceiving circle formation, upside is to have the scope that power reduces effect, be lower than under the situation of about 54mm at the spire height as can be seen, by opening the angle of sending the dirt valve, power will reduce, more than or equal to the height of 54mm the time, even will send the dirt valve opening to rotate to minus side, also dynamic reduction effect.
And, both having had power and reduced effect, the spire height that has scope that the loss of tier pole mouth reduces effect again and be above-mentioned two curve intersections is smaller or equal to about 45mm, and it is the highest to send the dirt valve opening to be about the range efficiencies that 4 degree-12 spend.This is because at the spire height during smaller or equal to about 45mm, the paddy bar is suitably rubbed, and makes to send the relative spire of dirt valve to have angle, apply the cause of suitable resistance.In addition, at the spire height during more than or equal to about 55mm, even the aperture of sending the dirt valve in negative scope, also has and has grain loss and reduce the scope that effect and power reduce effect, but the overhang of threshing tooth dwindles, the threshing effect reduces, threshing efficiency reduces.
According to the result of Figure 31, the spire height is lower than about 45mm, send the angle of dirt valve is about 8 degree, can obtain grain with the highest efficient.
And Figure 32 has increased the result that data bulk is tested for clear and definite trend.Thick line is represented the spire height and the relation of sending dirt valve opening equivalent with the tier pole mouth loss of present situation, fine rule is represented the spire height and the relation of sending the dirt valve opening with the power equivalence of present situation, and, when dotted line is represented with the tier pole mouth of present situation loss equivalence with respect to the ratio of the power of present situation and the relation of spire height.
As can be seen from the figure, the 54mm of spire aspect ratio present situation is short, has the power that will send the dirt valve angle to be opened to gradually about 12 degree and reduces effect.And, send the dirt valve angle than with the fine rule of the power equivalence of present situation when big power reduce.In addition, send the dirt valve opening than and the thick line of existing tier pole mouth loss equivalence hour, the loss of tier pole mouth reduce.Therefore, the scope that surrounds of oblique line is to compare the scope that power and the loss of tier pole mouth reduce simultaneously with present situation.
And, in Figure 33, the dust-exhausting port loss (No. three losses) when solid line is represented the loss of tier pole mouth with the present situation equivalence and the relation of spire height, dotted line is represented the relation with respect to the ratio and the spire height of the drum shaft power of present situation.When the loss of tier pole mouth equated with present situation, the dust-exhausting port loss equated that also even the spire height changes, the summation of the grain loss that tier pole mouth and dust-exhausting port produce also is certain as can be seen from this figure.But, reduce than the low then power of present situation spire height, then increase than present situation spire height height.The conveying capacity of paddy bar will reduce if the spire height is low, therefore send the dirt valve to recover conveying property by opening, and the threshing tube chamber holdup time can be remained on the present situation state.Its result, grain loss does not change.But in case the spire reduction, then the gap value of spire outer peripheral face and reception net increases, and with the friction reduction of paddy bar, so power reduces.The result who increases data bulk, clear and definite trend is that summary Figure 32, Figure 33 are lower than present situation (54mm) by making the spire height, can make grain loss keep the power of present situation, reduction cylinder.The diameter of cylinder of this moment is 500mm, and diameter of cylinder is the external diameter of rotating cylinder, that is, and and the twice of the radius E among Fig. 9.
And, in Figure 34, the ratio that fractures of the paddy bar of the relative present situation of thick line (2) expression and the relation of spire height, fine rule is represented the relation with respect to the ratio and the spire height of the damaged kernel of present situation, and dotted line is represented with respect to the ratio of the branch stalk grain of present situation and the relation of spire height.
If reduce the spire height, then damaged kernel has the trend of a little increase, and branch stalk grain has the trend of a little reduction, but both sides are identical with existing degree.If but make the spire height be lower than 34mm, then the paddy bar fractures sharply increases.Because spire reduces, makes the overhang of threshing tooth to increase, therefore the contact frequency with the paddy bar improves, the increase that fractures of paddy bar.Even near the spire height the spire height 44mm has some to change a little, the intensity of variation that the paddy bar fractures is also little, stably keeps the present situation degree.And damaged kernel, branch stalk grain also keep the present situation degree.
As mentioned above, as shown in Figure 9, making the height from the periphery of cylinder 1 of the spire 3 that is arranged on the cylinder 1 is A, from the overhang of the outstanding threshing tooth 2 of this spire 3 is B, (1) in the scope 1 of Figure 34) shown in spire height 34-54mm (owing to make threshing tooth front end and the clearance C that receives net for certain, the overhang B of threshing tooth 2 was 37mm when therefore the spire height A was 34mm, the overhang B of threshing tooth was 17mm when the spire height A was 54mm, therefore, A: B=5: 5.4-A: B=5: in the time of 1.57), it is constant and reduce power the threshing performance number can be remained the present situation degree.(2) (this moment, the spire height A was that the overhang B of 44mm, threshing tooth 2 is 27mm, and A: B=5: 3) the threshing performance number is stable, can simultaneously keep present situation level, one side to reduce power, was optimal spire height near spire height 44mm.
And, in the different cylinder of diameter of cylinder, Figure 35 is the spire height A and the ratio of the overhang B of threshing tooth is 5: 1.5 a present situation, with the comparison of cylinder power under the situation that formed 5: 2.7 and formed notch board structure shown in Figure 19, consequently, cylinder power has improved 36%.
Figure 36 be expression spire height A with the ratio of the overhang B of threshing tooth be 5: 1.5 present situation with form and the comparison loss of tier pole mouth at 5: 2.7 o'clock, improved 15% in this case as can be seen.
As can be seen from the above results, even diameter of cylinder changes, by making A: B forms proper proportion, for example 5: 3, also can reduce power and loss.And, have the effect that significantly reduces power by combination as can be seen with the notch board structure of Figure 19.The diameter of cylinder of this moment is 580mm.
And, Figure 37 is that the threshing tooth of the above-mentioned rear portion threshing tube chamber L3 of expression is, the chart of drum shaft power ratio under 8 and 4 the situation, Figure 38 is the chart that the threshing tooth of expression rear portion threshing tube chamber L3 is, Wholegrain loses ratio under 8 and 4 the situation, like this, compare with 8, the threshing tooth of threshing tube chamber, rear portion L3 is that required drive is few under 4 the situation, and the threshing performance improves.
In addition, in the present embodiment, with horizontal direction before and after the helix drum (axle center) be arranged on the inside of the threshing tube chamber of sheller unit, but also applicable to the combine that helix drum and fuselage direction of advance orthogonal are provided with (axle center left and right horizontal direction).
Sheller unit of the present invention is applicable to the general-purpose combine harvester of harvesting paddy rice.
Claims (9)
1. the sheller unit of a general-purpose combine harvester, it is characterized in that, has helix drum, this helix drum is reeled on the periphery of the cylinder that is made of rotating cylinder and is provided with spire, be provided with the threshing tooth from this spire to the radiation direction is outstanding, in this helix drum, the height that is arranged on the spire on the cylinder of reeling with ratio from the overhang of the outstanding threshing tooth of this spire is, height with respect to spire is 5, and the overhang of threshing tooth is greater than 1.57, smaller or equal to 5.4.
2. the sheller unit of a general-purpose combine harvester, it is characterized in that, has helix drum, this helix drum is reeled on the periphery of the cylinder that is made of rotating cylinder and is provided with spire, from this spire to the outstanding threshing tooth that is provided with of radiation direction, in this helix drum, the height be arranged on the spire on the cylinder of reeling is approximately 5 to 3 with ratio from the overhang of the outstanding threshing tooth of this spire.
3. the sheller unit of a general-purpose combine harvester, it is characterized in that, has helix drum, this helix drum is reeled on the periphery of the cylinder that the rotating cylinder by specified diameter constitutes and is provided with spire, from this spire to the outstanding threshing tooth that is provided with of radiation direction, in this helix drum, the not enough 54mm of height that reels and be arranged on the spire on the cylinder.
4. the sheller unit of general-purpose combine harvester as claimed in claim 3 is characterized in that, the height of above-mentioned spire is more than or equal to 34mm.
5. the sheller unit of general-purpose combine harvester as claimed in claim 3 is characterized in that, the height of above-mentioned spire is approximately 44mm.
6. as the sheller unit of each the described general-purpose combine harvester in the claim 1 to 5, it is characterized in that, be extruded with a plurality of dirt valves that send towards the outer circumferential side of above-mentioned cylinder, after roughly rectangular direction is gone forward with respect to cylinder axis, send the angle initialization with respect to the rectangular direction of cylinder axis of dirt valve to be this:, little in the downstream at threshing upstream side, big on throughput direction.
7. the sheller unit of a general-purpose combine harvester, it is characterized in that, has helix drum, on the periphery of this cylinder, reel and be provided with spire, direction is outstanding to be provided with the threshing tooth to radiating from this spire, in helix drum, helix drum is crossed over whole length be divided into three sections, from first section and second section in the place ahead, many threshing teeth are set on a circumference; In the 3rd section, on a circumference, be provided with than the above-mentioned few threshing tooth of a threshing tooth that manys, simultaneously, a plurality of dirt valves that send are set in that the threshing tube of the rotation periphery of helix drum is indoor.
8. the sheller unit of general-purpose combine harvester as claimed in claim 7 is characterized in that, the quantity of the threshing tooth of above-mentioned first section is set to 8, and the quantity of the threshing tooth of the 3rd section is set to the 4-8 root.
9. the sheller unit of general-purpose combine harvester as claimed in claim 7, it is characterized in that, in sending the dirt valve, can change the angle of sending the dirt valve of the angle of sending the dirt valve, second section and the 3rd section of first section respectively by operating means, this angle operating means is arranged on the driver's seat next door.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP329139/2003 | 2003-09-19 | ||
| JP2003329139 | 2003-09-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1852654A true CN1852654A (en) | 2006-10-25 |
Family
ID=34418997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004800269243A Pending CN1852654A (en) | 2003-09-19 | 2004-09-15 | Threshing unit of general-purpose combine harvester |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR20060126939A (en) |
| CN (1) | CN1852654A (en) |
| WO (1) | WO2005032239A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104365291A (en) * | 2007-01-11 | 2015-02-25 | 株式会社久保田 | Threshing device |
| CN107771539A (en) * | 2007-01-11 | 2018-03-09 | 株式会社久保田 | Sheller unit |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105052426B (en) * | 2015-08-07 | 2017-02-01 | 鹤岗市田丰农机制造有限公司 | Grain threshing sealing hood with adjustable guide vane |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01202218A (en) * | 1988-02-05 | 1989-08-15 | Kubota Ltd | Whole straw charge-type thresher |
| JPH06276838A (en) * | 1993-03-23 | 1994-10-04 | Kubota Corp | Threshing drum structure of axial-flow threshing apparatus |
| JPH08298852A (en) * | 1995-05-08 | 1996-11-19 | Kubota Corp | Axial flow-type threshing drum |
-
2004
- 2004-09-15 WO PCT/JP2004/013454 patent/WO2005032239A1/en not_active Application Discontinuation
- 2004-09-15 CN CNA2004800269243A patent/CN1852654A/en active Pending
- 2004-09-15 KR KR1020067005482A patent/KR20060126939A/en not_active Application Discontinuation
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104365291A (en) * | 2007-01-11 | 2015-02-25 | 株式会社久保田 | Threshing device |
| CN104365293A (en) * | 2007-01-11 | 2015-02-25 | 株式会社久保田 | Threshing device |
| CN104365293B (en) * | 2007-01-11 | 2017-12-05 | 株式会社久保田 | The threshing structure of full feed type combine harvester |
| CN107771539A (en) * | 2007-01-11 | 2018-03-09 | 株式会社久保田 | Sheller unit |
| CN107787686A (en) * | 2007-01-11 | 2018-03-13 | 株式会社久保田 | Sheller unit |
| CN107820869A (en) * | 2007-01-11 | 2018-03-23 | 株式会社久保田 | Sheller unit |
| CN104365291B (en) * | 2007-01-11 | 2019-03-29 | 株式会社久保田 | Sheller unit |
| CN107787686B (en) * | 2007-01-11 | 2020-06-26 | 株式会社久保田 | Threshing device |
| CN107771539B (en) * | 2007-01-11 | 2020-09-01 | 株式会社久保田 | Threshing device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20060126939A (en) | 2006-12-11 |
| WO2005032239A1 (en) | 2005-04-14 |
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Open date: 20061025 |