CN104365289A - Threshing and separating device and combine harvester with threshing and separating device - Google Patents

Threshing and separating device and combine harvester with threshing and separating device Download PDF

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Publication number
CN104365289A
CN104365289A CN201410061807.6A CN201410061807A CN104365289A CN 104365289 A CN104365289 A CN 104365289A CN 201410061807 A CN201410061807 A CN 201410061807A CN 104365289 A CN104365289 A CN 104365289A
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China
Prior art keywords
threshing
introduction part
helical blade
roller
installed threshing
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CN201410061807.6A
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Chinese (zh)
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CN104365289B (en
Inventor
本杰明·志达·孙
庞凤斌
王洪源
李军榜
庄义斌
韩艳鹏
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John Deere Tianjin Co Ltd
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John Deere Tianjin Co Ltd
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Priority to CN201410061807.6A priority Critical patent/CN104365289B/en
Priority to EP15155590.1A priority patent/EP2910107A1/en
Priority to US14/627,453 priority patent/US9456550B2/en
Publication of CN104365289A publication Critical patent/CN104365289A/en
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Abstract

The invention relates to a threshing and separating device which is provided with a first threshing and separating mechanism, a second threshing and separating mechanism and a middle feeding mechanism located between the first threshing and separating mechanism and the second threshing and separating mechanism. The first threshing and separating is provided with a toothed bar type first roller and a grid type first concave plate, and the face, facing the first roller, of the first concave plate is not provided with any part protruding into the addendum circles of threshing teeth of the first roller. The second threshing and separating mechanism is provided with a toothed bar type second roller and a grid type second concave plate, and the face, facing the second roller, of the second concave plate is not provided with any part protruding into the addendum circles of threshing teeth of the second roller. The second roller comprises a force leading-in part located at the front end and a roller bar tooth part located behind the force leading-in part, wherein the force leading-in part is provided with a truncated cone and spiral blades located on the truncated cone, the roller bar tooth part is provided with a plurality of parallel second rods which are evenly distributed along the circumference, and each second rod is provided with a plurality of threshing teeth. The invention further relates to a combine harvester with the threshing and separating mechanisms.

Description

Installed threshing separator and there is the combine of this installed threshing separator
Technical field
The present invention relates to a kind of installed threshing separator, and there is the combine of this installed threshing separator.
Background technology
Combine gathers in crop by reaping apparatus, and is separated from the crop of cutting off by crop kernel by installed threshing separator.Chinese patent ZL00137715.9 discloses one and cuts stream and longitudinal axial flow Combined threshing separator.At present, such installed threshing separator has become the standard construction that feed quantity is greater than the large-scale harvester of 7Kg/s.But crop that is large for seed separating difficulty, crop stalk good toughness, such as paddy rice, destroy seed and the blocked problem being this installed threshing separator and the combine with installed threshing separator and often running into, and the power consumption of combine must be caused thus to increase.For the combine that feed quantity is larger, the problems referred to above become especially remarkable.
Summary of the invention
The object of the invention is to solve the problem at least one of them.This problem is solved by the installed threshing separator of claim 1.
Feed quantity is greater than to the combine of 7Kg/s, in order to complete threshing and be separated and adopt following conventional design, be about to main the first cylinder playing flailing action and become to have mutual Embedded threshing tooth with the first intaglio design, strengthen the combing effect to crop whereby; In the middle of relying on, crop transmits rearward by feeding-wheel; And the second tin roller mainly playing centrifugation is designed to the structure with closed cylinder and the plate tooth along the distribution of cylindrical shell total length, more thorough to what crop kernel was separated with cane.Such design is effective to most dry crop, but unsatisfactory for effect paddy rice or moist pliable and tough crop.The present invention revises this structure.Installed threshing separator of the present invention comprises: the first threshing separating mechanism, and it comprises the first cylinder and is positioned at the first notch board below this first cylinder; Second threshing separating mechanism, it comprises second tin roller and is positioned at the second notch board below this second tin roller; Middle intake mechanism between described first threshing separating mechanism and described second threshing separating mechanism; Described first cylinder can rotate around the first rotation, and there is multiple and described first rotation axis parallel and circumferentially equally distributed first bar, each described first bar has multiple first threshing tooth, and the tooth top of described first threshing tooth forms the first outside circle; Described second tin roller can rotate around the second rotation vertical with described first rotation; It is characterized in that: described first notch board is grid configuration, this first notch board does not have towards the one side of described first cylinder any part protruding into described first outside circle; Described second tin roller comprises: the pressure introduction part being positioned at front end, and this pressure introduction part has truncated cone and is positioned at the helical blade on this truncated cone; And be positioned at the roller rod teeth portion of forcing introduction part rear, this roller rod teeth portion has multiple with the second rotation axis parallel and circumferentially equally distributed second bar, each described second bar has multiple second threshing tooth, and the tooth top of described second threshing tooth forms the second outside circle; Described second notch board is grid configuration, and this second notch board does not have any part protruding into the second outside circle.
By the first cylinder to be become the structure mutually do not embedded with the first intaglio design, can avoid or reduce powerful combing effect to the fragmentation of crop kernel; In fact such design causes the flailing action of the first cylinder and the first notch board to reduce; In order to make up the reduction of this flailing action, and overcome the problem that second tin roller is easily wound around blocking simultaneously, the present invention has carried out creationary transformation to second tin roller: the leading portion of this second tin roller is arranged the pressure introduction part with helical blade, and back segment is arranged to the open cylindrical shell with ratch; Correspondingly, second tin roller and the second notch board are also designed to the structure without mutually embedding.By the combination of above-mentioned each cylinder and corresponding notch board, achieve the omnidistance gentle threshing to crop and be separated, and take into account the fluency of crop feeding, reduce power consumption simultaneously.Experimental data shows, the large-scale harvester being 7Kg/s for specified feed quantity harvesting paddy rice, the installed threshing separator of improvement like this is when overall dimension is constant but feed quantity reaches 13Kg/s, its total loss rate is 2.5%, lower than the standard of 3% of regulation in " rice/wheat combine operation quality standard " (national standard).In other words, the improvement like this in design obtains the technique effect of the highly significant that feed quantity is almost doubled.
About second tin roller, especially force the design of introduction part, can carry out according to the additional technical feature of dependent claims.These design features guarantee that second tin roller reaches best feeding fluency while ensureing threshing separating effect.
Accompanying drawing explanation
Fig. 1 is the total structure of installed threshing separator of the present invention;
Fig. 2 shows the structure of the first cylinder and the first notch board combined;
Fig. 3 shows the structure of second tin roller and the second notch board combined, wherein top board shown in broken lines, base plate and cover plate;
Fig. 4 specifically illustrates the structure of second tin roller; And
Fig. 5 particularly illustrates the structure of cover plate.
Embodiment
Hereafter introduce installed threshing separator of the present invention with reference to the accompanying drawings.
Fig. 1 shows the installed threshing separator for the treatment of crop of the present invention, and crop flows through this device along direction from left to right.For ease of understanding, the side of left side feeding crop in Fig. 1 is called front by the present invention, and the side of right side in figure being discharged crop stalk is called rear, and defines fore-and-aft direction thus.In general, front is the direction of advance of the combine with this installed threshing separator.
The first threshing separating mechanism 1 that this installed threshing separator is made up of the first cylinder 11 and the first notch board 12 in its anterior setting, be provided with the second threshing separating mechanism 2 formed primarily of second tin roller 21 and the second notch board 232 at its rear portion, and be provided with middle intake mechanism 3 between the first and second threshing separating mechanisms.After crop enters this installed threshing separator 10, by the first drum threshing rotated, and the seed taken off falls into unshowned seed gathering system by the grid of the first notch board; Subsequently, crop is fed to the second threshing separating mechanism 2 by middle intake mechanism 3, second threshing separating mechanism completes being separated the threshing of crop and seed and cane compared with the path longer in the first threshing separating mechanism, cane after separation is discharged from rear side, and seed falls within this unshowned seed gathering system.
See figures.1.and.2, the first cylinder 11 has the first rotation in the horizontal direction, this rotation perpendicular to fore-and-aft direction, and under normal circumstances for having the left and right directions of the combine of this installed threshing separator.This first cylinder has multiple first bar 13, and these bars are all along the circumferential direction uniformly distributed with rotation axis parallel; Each first bar 13 is provided with multiple first threshing tooth 14, and the tooth top of these the first threshing tooths forms the first outside circle.First notch board 12 is the partial cylinder shape of grid configuration, its be positioned at the first cylinder below and partly around this first cylinder.Threshing space is formed between the first cylinder 11 and a notch board 12.Destroy crop kernel in order to avoid producing strong combing effect to crop, the first notch board 12 is arranged to not have any parts protruding into the first outside circle by the present invention; In other words, the space that the first cylinder is occupied when rotated does not exist any overlapping with the space shared by the first notch board.
Middle intake mechanism 3 is at the rear of the first threshing separating mechanism 1, and it has middle feeding-wheel 32, multiple teeth that this middle feeding-wheel 32 has cylindric main body and is positioned in this main body.When middle feeding-wheel rotates, crop is carried backward under the drive of these teeth.Preferably, this middle intake mechanism 3 also has the smooth rollers 31 be arranged between middle feeding-wheel 32 and the first cylinder 11.
Second threshing separating mechanism 2 is arranged on the rear of middle intake mechanism 3, and its critical piece is second tin roller 20, be positioned at base plate 212 below this second tin roller and the second notch board 232 and the top board 211 be positioned at above this second tin roller and cover plate 231.
With reference to Fig. 3 and Fig. 4, this second tin roller 20 has second rotation vertical with the first rotation, and this second rotation not in horizontal plane, but raises gradually along direction from front to back.This second tin roller 20 can be divided into following several part: the pressure introduction part 21 being positioned at front end, is positioned at the roller rod teeth portion 23 of forcing introduction part rear, and is positioned at the discharge portion 25 at roller rod teeth portion 23 rear.
As shown in Figure 4, force introduction part 21 to have truncated cone 215 and be positioned at two helical blades 214 on this truncated cone, these two helical blades are centered around on truncated cone 215, and the two phase difference on truncated cone 215 is 180 degree.Above and below roughly corresponding with this pressure introduction part 21, the second threshing separating mechanism 2 has cover plate 211 and base plate 212 respectively, and the two is engaged with each other and forms the importing chamber around forcing introduction part 21.In order to make importing process smooth, at base plate 212, there is smooth surface and not arranging towards any projecting member of forcing introduction part; Top board 211 is smooth surface substantially, only has towards an outstanding guide vane 213 of described pressure introduction part 21 in its back-end, as shown in Figure 5.Experiment proves, this independent guide vane 213 not only can not hinder crop to flow backward, and crop can also guide by backward, the blocking avoiding crop to cause because of uneven feeding and the eccentric load of second tin roller 20.
Be positioned at and force the roller rod teeth portion 23 at introduction part 21 rear to have many to be parallel to each other and along the circumferential direction equally distributed second bar 233, each second bar 233 has multiple second threshing tooth 234.These second bars and the second threshing tooth can to the further threshings of crop, and interact with cover plate 231 and the second notch board 232 in rotary course and realize being separated of seed and crop stalk.In the below of this second tin roller 20, and mainly below roller rod teeth portion 23, be provided with described second notch board 232; This second notch board is grid configuration, with the first notch board similarly, this second notch board 232 does not have any part of the second outside circle protruding into the second threshing tooth and formed.Described cover plate 231 is provided with above this second tin roller 20.This cover plate 231 covers second tin roller 20 from top, and on this cover plate 231, is provided with multiple spiral guided plate, for rearward being guided by crop.
In the present invention, even if force introduction part 20 also can obtain good feeding property when crop is moist pliable and tough and feed quantity is large to make, and multinomial improvement has been carried out to it.
Force the outer rim envelope of the helical blade 214 of introduction part 21 to become the cylinder of a constant outer diameter, this cylindrical diameter is also referred to as the spiral external diameter of helical blade.In the present invention, this spiral external diameter is configured to be more than or equal to the second tooth top diameter of a circle.In the existing product adopting helical blade to import crop and relevant design manual, all require that spiral external diameter is less than the outside circle of threshing cylinder, i.e. so-called " little conehead " design.Above-mentioned " large conehead " of the present invention does not reduce feeding property, shows better feeding property on the contrary, and this point can be able to be proven from experimental data mentioned above.In addition, on described second rotation direction, the rear end of helical blade 214 is more forward than the front end of the second notch board 232, thus makes after the front end of the second notch board 232 is positioned at the bottom surface of truncated cone.Or this can understand like this, force the composition surface of introduction part 21 and roller rod teeth portion 23 more forward than the composition surface of base plate 212 and the second notch board 232.Such design can make feeding more abundant, and Threshing is better.For guaranteeing enough feeding power, the size of helical blade 214 meets condition below: for the higher part of helical blade front end, and its blade height is greater than 20% of the spiral external diameter of this helical blade, such as, can be arranged to 25%; Such as, and for the lower part of helical blade rear end, its blade height is less than 15% of the spiral external diameter of this helical blade, can be arranged to 13%.The length of introduction part 21 is forced also to have corresponding requirement, in the present invention, along described second rotation direction, the ratio that the length of this pressure introduction part 21 accounts for the length of whole second tin roller 20 is less than 30%, takes into account successively and forces the feeding effect of introduction part and the threshing separating effect of roller rod teeth portion; Such as, the ratio of forcing the length of introduction part to be arranged to the length accounting for whole described second tin roller can be equaled 20%, this ratio can realize feeding desirable especially and be separated resultant effect with threshing under master-plan of the present invention.
For the ease of discharging the crops straw after threshing is separated, the end of second tin roller 20 is provided with discharge portion 25.This discharge portion has can two or more sheet empennages 252 of rotary dial crops straw, and these empennages 252 to be welded on cylinder 251 and to extend along the second rotation direction, and cylinder 251 with the second rotation for rotation.In the present invention, the ratio that the length along the second rotation direction of empennage 252 accounts for second tin roller 20 overall length is greater than 12%, such as, equal 15%.
Above-mentioned installed threshing separator can be used on combine.Typical combine has the running gear for making this combine walk, be positioned at the anterior and reaping apparatus for gathering in crop of this grain header, by the conveying plant that crop lower for harvesting is carried backward, and receive crop that self-conveying apparatus transports and carry out the installed threshing separator of disengaging separating treatment.Namely installed threshing separator of the present invention can be used on above-mentioned combine.
Although be disclosed above the exemplary embodiment combining principle of the present invention, the present invention is being not limited to the disclosed embodiments.On the contrary, the application is intended to use rule of the present invention to cover any change of the present invention, purposes or amendment.And, the invention is intended to contain depart from present disclosure, as fallen into this content within the scope of the known or usual practice in field belonging to the present invention.

Claims (16)

1. an installed threshing separator, comprising:
First threshing separating mechanism, it comprises the first cylinder and is positioned at the first notch board below this first cylinder;
Second threshing separating mechanism, it comprises second tin roller and is positioned at the second notch board below this second tin roller;
Middle intake mechanism between described first threshing separating mechanism and described second threshing separating mechanism;
Described first cylinder can rotate around the first rotation, and there is multiple and described first rotation axis parallel and circumferentially equally distributed first bar, each described first bar has multiple first threshing tooth, and the tooth top of described first threshing tooth forms the first outside circle;
Described second tin roller can rotate around the second rotation vertical with described first rotation;
It is characterized in that:
Described first notch board is grid configuration, and this first notch board does not have towards the one side of described first cylinder any part protruding into described first outside circle;
Described second tin roller comprises:
Be positioned at the pressure introduction part of front end, this pressure introduction part has truncated cone and is positioned at the helical blade on this truncated cone; And
Be positioned at the roller rod teeth portion of forcing introduction part rear, this roller rod teeth portion has multiple with the second rotation axis parallel and circumferentially equally distributed second bar, each described second bar has multiple second threshing tooth, and the tooth top of described second threshing tooth forms the second outside circle;
Described second notch board is grid configuration, and this second notch board does not have any part protruding into the second outside circle.
2. installed threshing separator as claimed in claim 1, is characterized in that:
This installed threshing separator also has the top board be arranged on above described pressure introduction part and the base plate be positioned at below described pressure introduction part, and described top board and base plate are engaged with each other and form the importing chamber around forcing introduction part;
Described base plate is the arc-shaped partly holding described pressure introduction part, and this base plate is connected with described second notch board, and does not have any parts protruded towards described pressure introduction part.
3. installed threshing separator as claimed in claim 1 or 2, is characterized in that:
Along described second rotation direction, the front end of described second bar is more forward than the front end of described second notch board.
4. the installed threshing separator as described in one of claims 1 to 3, is characterized in that: the outer rim of described helical blade has the constant spiral external diameter being greater than described second tip diameter.
5. the installed threshing separator as described in one of claims 1 to 3, is characterized in that: the outer rim of described helical blade has the constant spiral external diameter equaling described second tip diameter.
6. the installed threshing separator as described in claim 4 or 5, is characterized in that: the front end of described helical blade is greater than 20% of the spiral external diameter of this helical blade from the blade height of described frusto-conical surface projection.
7. installed threshing separator as claimed in claim 6, is characterized in that: the front end of described helical blade is 25% of the spiral external diameter of this helical blade from the blade height of described frusto-conical surface projection.
8. installed threshing separator as claimed in claims 6 or 7, is characterized in that: the rear end of described helical blade is less than 15% of the spiral external diameter of this helical blade from the blade height of described frusto-conical surface projection.
9. installed threshing separator as claimed in claim 8, is characterized in that: the blade height of the rear end of described helical blade is 13% of the spiral external diameter of this helical blade.
10. the installed threshing separator as described in one of the claims, is characterized in that: along described second rotation direction, and the ratio that the length of described pressure introduction part accounts for the length of whole described second tin roller is less than 30%.
11. installed threshing separators as claimed in claim 10, is characterized in that: along described second rotation direction, and the ratio that the length of described pressure introduction part accounts for the length of whole described second tin roller equals 20%.
12. installed threshing separators as claimed in claim 2, is characterized in that: described top board has at least one guide vane protruded towards described pressure introduction part in its back-end.
13. installed threshing separators as described in one of the claims, is characterized in that: described second tin roller has at least two the sheet empennages extended along described second rotation direction at its end.
14. installed threshing separators as claimed in claim 13, is characterized in that: the ratio that the length along described second rotation direction of described sheet empennage accounts for described second tin roller overall length is greater than 12%.
15. installed threshing separators as claimed in claim 14, is characterized in that: the ratio that the length along described second rotation direction of described sheet empennage accounts for described second tin roller overall length equals 15%.
16. 1 kinds of combines, have:
For the running gear making this combine walk;
Be positioned at the anterior and reaping apparatus for gathering in crop of this combine;
By the conveying plant that the crop under being gathered in by described reaping apparatus is rearward carried; And
Receive the crop from described conveying plant and the installed threshing separator as described in one of the claims that crop is processed.
CN201410061807.6A 2014-02-24 2014-02-24 Installed threshing separator and combine harvester with the installed threshing separator Active CN104365289B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201410061807.6A CN104365289B (en) 2014-02-24 2014-02-24 Installed threshing separator and combine harvester with the installed threshing separator
EP15155590.1A EP2910107A1 (en) 2014-02-24 2015-02-18 Threshing and separating device and combine harvester having the same
US14/627,453 US9456550B2 (en) 2014-02-24 2015-02-20 Threshing and separating device and combine harvester having the same

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CN201410061807.6A CN104365289B (en) 2014-02-24 2014-02-24 Installed threshing separator and combine harvester with the installed threshing separator

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105850399A (en) * 2016-05-10 2016-08-17 东风井关农业机械有限公司 Cleaning cylinder of harvester
CN107172979A (en) * 2017-07-16 2017-09-19 吉林大学 Nested differential double-screw type green grass or young crops raises stalk and crushes conveying device
CN107371641A (en) * 2017-08-22 2017-11-24 湖南农业大学 A kind of gap is adjustable concave grate and sheller unit

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Publication number Priority date Publication date Assignee Title
US5334093A (en) * 1991-05-10 1994-08-02 Deere & Company Detachable covers for an axial separator
US5556337A (en) * 1992-09-28 1996-09-17 Claas Ohg Beschraebkt Haftende Offene Self-propelling harvester thresher
CN1360818A (en) * 2000-12-26 2002-07-31 约翰·迪尔佳联收获机械有限公司 Combined tangential and axial flow threshing separator
CN2867835Y (en) * 2005-07-29 2007-02-14 湖南农业大学 Threshing machine drum capable of reducing rice seed damage
CN201639992U (en) * 2010-04-22 2010-11-24 山东宁联机械制造有限公司 Self-propelled grain combine
CN102177791A (en) * 2011-04-22 2011-09-14 江苏大学 Combined threshing separation device of transverse tangential flow roller and longitudinal dual axial flow roller
CN202889992U (en) * 2012-10-29 2013-04-24 黄宝玉 Longitudinal double-axial-flow grain threshing separation device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5334093A (en) * 1991-05-10 1994-08-02 Deere & Company Detachable covers for an axial separator
US5556337A (en) * 1992-09-28 1996-09-17 Claas Ohg Beschraebkt Haftende Offene Self-propelling harvester thresher
CN1360818A (en) * 2000-12-26 2002-07-31 约翰·迪尔佳联收获机械有限公司 Combined tangential and axial flow threshing separator
CN2867835Y (en) * 2005-07-29 2007-02-14 湖南农业大学 Threshing machine drum capable of reducing rice seed damage
CN201639992U (en) * 2010-04-22 2010-11-24 山东宁联机械制造有限公司 Self-propelled grain combine
CN102177791A (en) * 2011-04-22 2011-09-14 江苏大学 Combined threshing separation device of transverse tangential flow roller and longitudinal dual axial flow roller
CN202889992U (en) * 2012-10-29 2013-04-24 黄宝玉 Longitudinal double-axial-flow grain threshing separation device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105850399A (en) * 2016-05-10 2016-08-17 东风井关农业机械有限公司 Cleaning cylinder of harvester
CN107172979A (en) * 2017-07-16 2017-09-19 吉林大学 Nested differential double-screw type green grass or young crops raises stalk and crushes conveying device
CN107172979B (en) * 2017-07-16 2019-11-29 吉林大学 Nested differential double-screw type blueness raises stalk and crushes conveying device
CN107371641A (en) * 2017-08-22 2017-11-24 湖南农业大学 A kind of gap is adjustable concave grate and sheller unit

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