WO2022142002A1 - Ventilateur de moissonneuse - Google Patents

Ventilateur de moissonneuse Download PDF

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Publication number
WO2022142002A1
WO2022142002A1 PCT/CN2021/090156 CN2021090156W WO2022142002A1 WO 2022142002 A1 WO2022142002 A1 WO 2022142002A1 CN 2021090156 W CN2021090156 W CN 2021090156W WO 2022142002 A1 WO2022142002 A1 WO 2022142002A1
Authority
WO
WIPO (PCT)
Prior art keywords
fan
fixed
air inlet
harvester
air
Prior art date
Application number
PCT/CN2021/090156
Other languages
English (en)
Chinese (zh)
Inventor
王军
邢立成
王馨瑶
Original Assignee
江苏沃得农业机械股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 江苏沃得农业机械股份有限公司 filed Critical 江苏沃得农业机械股份有限公司
Publication of WO2022142002A1 publication Critical patent/WO2022142002A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
    • A01D41/12—Details of combines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30—Vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/626—Mounting or removal of fans

Definitions

  • the application relates to the technical field of agricultural machinery, in particular to a harvester fan.
  • Crawler-type combine harvester threshing system can be divided into crawler-type combine harvester threshing system can be divided into longitudinal axial flow threshing and cleaning system and horizontal axial flow threshing and cleaning system, these two forms of threshing and cleaning system are the current market
  • crawler-type combine harvester threshing system can be divided into longitudinal axial flow threshing and cleaning system and horizontal axial flow threshing and cleaning system, these two forms of threshing and cleaning system are the current market
  • the interior of the harvester is mainly divided into a threshing system, a screening system and an air selection system from top to bottom.
  • the function of the air selection system is to continuously blow air towards the rear of the harvester, and the air blows through the drop area of the crop seeds and the mesh screen in the screening system.
  • the surface of the harvester is blown out to the rear opening of the harvester, so as to collect the crop grains with high cleanliness.
  • the conventional fan is used in the air separation system below, which will cause two problems.
  • the wind in the middle is weakened, and the wind reaching the screen surface of the vibrating screen is uneven, which affects the effect of wind selection.
  • the technical problem to be solved by the present application is to overcome the uneven air supply of the fan in the prior art, which affects the effect of wind selection.
  • a harvester fan comprising:
  • a fan housing which has a cylindrical mounting cavity
  • a fan drive connected to the fan structure, suitable for driving the fan structure to rotate in the installation cavity;
  • Both ends of the fan casing in the axial direction are respectively provided with first air inlets communicating with the outside world;
  • An air outlet is provided on the side wall of the fan housing along its axial direction; the width of the air outlet is the same as the width of the installation cavity;
  • a second air inlet is provided on the side wall of the fan casing opposite to the air outlet along its circumferential direction; in the axial direction of the fan casing, the second air inlet is located in the fan the middle position of the shell.
  • Any one of the first air inlets is provided with a wind shield, which is suitable for changing the air inlet area of the first air inlet.
  • the wind shield is a plate-like structure; the wind shield is slidably arranged on the fan casing.
  • any one of the first air inlets is provided with two windshields; one of the windshields is arranged on the side of the first air inlet on the side of the air outlet, and is suitable for lateral sliding and partially shielding the The upper half of the first air inlet;
  • the other wind shield is arranged on the side of the first air inlet away from the air outlet, and is suitable for sliding vertically and partially shielding the lower half of the first air inlet.
  • a strip hole is formed on the wind shield; the wind shield is bolted and fixed on the fan casing through the strip hole.
  • the fan structure includes:
  • the fan shaft is coaxially arranged in the installation cavity, and the two ends of the fan shaft are respectively fixed on two bearings located on the frame;
  • a plurality of support units are fixed on the fan shaft at even intervals
  • Any of the supporting units includes:
  • a plurality of fan blade brackets are sequentially bolted and fixed on the fan shaft along the circumferential direction of the fan shaft; the fan blades are respectively bolted and fixed on the fan blade brackets; all the fan blade brackets A regular polygon is enclosed, and the regular polygon circumscribes the circle of the cross section of the fan shaft.
  • the fan blade bracket is bent and arranged to form a fixed section and an installation section; the end of the installation section is suitable for installing the fan blade; the angle ⁇ formed between the fixed section and the installation section and the fan blade
  • the interior angles ⁇ of the regular polygon enclosed by the leaf support are complementary.
  • a flat slot is set on the fan shaft corresponding to any one of the supporting units; one of the fan blade supports is fixed in the flat slot.
  • It also includes a reinforcing plate, which is welded and fixed in the flat groove; the fan blade bracket is fixed on the upper surface of the reinforcing plate; the thickness of the reinforcing plate is the same as the groove depth of the flat groove; The width of the plate in the radial direction of the fan shaft is not greater than the diameter of the fan shaft.
  • the fan shaft is provided with a plurality of flat grooves; the flat grooves are arranged in a one-to-one correspondence with the fan blade support; the installation sections of the fan blade support are correspondingly fixed in the flat grooves.
  • the harvester fan provided by this application includes a fan casing, a fan structure and a fan drive.
  • the fan structure is installed in the cylindrical installation cavity of the fan casing, and the two ends in the axial direction of the fan casing are respectively provided with first air inlets communicating with the outside.
  • the side wall of the fan casing is provided with an air outlet along its axial direction, and the width of the air outlet is the same as that of the installation cavity.
  • the side wall of the fan casing opposite to the air outlet is provided with a second air inlet along its circumferential direction, and the second air inlet is located in the middle of the fan casing in the axial direction of the fan casing.
  • a second air inlet is opened in the middle of the casing, and the first air inlets at both ends of the fan casing are combined to form three air inlets evenly distributed on the fan casing, providing sufficient air intake and making the air intake more uniform.
  • FIG. 1 is a schematic structural diagram of a fan casing in an embodiment of the application
  • FIG. 2 is a schematic diagram of the installation structure of the windshield in the embodiment of the application.
  • FIG. 3 is a schematic cross-sectional view of a fan structure in an embodiment of the application.
  • FIG. 4 is a schematic structural diagram of a fan shaft in an embodiment of the application.
  • FIG. 5 is a perspective view of a fan structure in an embodiment of the present application.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • installed should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • This embodiment provides a harvester fan, as shown in FIG. 1 and FIG. 2 , including a fan casing 3f, a fan structure, and a fan drive.
  • the fan structure is installed in the cylindrical installation cavity of the fan casing 3f, and the two ends of the fan casing 3f in the axial direction are respectively provided with first air inlets 31f which communicate with the outside world.
  • the first air inlet 31f is a circular air inlet and is arranged concentrically with the cross section of the cylindrical installation cavity.
  • An air outlet 33f is provided on the side wall of the fan housing 3f along its axial direction, and the width of the air outlet 33f is the same as that of the installation cavity.
  • An air guide structure can be installed on the air outlet 33f, so as to guide the air to blow in a set direction.
  • a second air inlet 32f is formed on the side wall of the fan casing 3f opposite to the air outlet 33f along the circumferential direction of the fan casing 3f.
  • the projection of the second air inlet 32f on the horizontal plane is a square.
  • the second air inlet 32f is located at the middle position of the fan casing 3f.
  • the second air inlet 32f is located on the fan housing 3f obliquely above the air outlet 33f.
  • a second air inlet 32f is opened in the middle of the casing, and cooperates with the first air inlets 31f at both ends of the fan casing 3f to form three air inlets evenly distributed on the fan casing 3f, providing sufficient air intake volume and making the air intake more even.
  • each first air inlet 31f on both sides is provided with a wind shield.
  • the wind shield is a plate-like structure, and each first air inlet 31f is correspondingly provided with two shields.
  • the two wind shields are respectively a first wind shield 51i arranged on the side close to the air outlet 33f and located on the upper half of the first air inlet 31f, and a first wind shield 51i arranged on a side away from the air outlet 33f.
  • the casing of the rack 1 is provided with a communication port corresponding to the first air inlet 31f to communicate with the outside world.
  • the size of the communication port is the same as that of the first air inlet 31f.
  • the first air baffle 51i and the second air baffle 52i are respectively provided with strip holes, and the corresponding fan casing 3f and the rack 1 is provided with matching holes, and the strip-shaped holes on the first wind deflector 51i are arranged horizontally, so that the first wind deflector 51i can slide laterally and partially block the upper half of the first air inlet 31f.
  • the strip holes on the second wind deflector 52i are arranged vertically, so that the second wind deflector 52i can slide vertically and partially block the lower half of the first air inlet 31f.
  • the air intake area of the air inlet 31f changes the air intake volume under different working conditions to make it applicable to a wider range.
  • the fan structure includes a fan shaft 1i, a plurality of support units and a plurality of fan blades 2i.
  • both ends of the fan shaft 1i protrude from the first air inlet 31f and are rotatably fixed in the bearing seat on the frame 1 .
  • one end of the fan shaft 1i is installed with a driving pulley, which is used to connect the transmission shaft and provide the driving force for the rotation of the fan structure.
  • the fan is driven by a belt drive.
  • each support unit includes a plurality of fan blade brackets 3i, along the circumference of the fan shaft 1i The fan blades 2i are bolted and fixed to the fan blade brackets 3i respectively.
  • the fan blade bracket 3i is a plate-like structure, and the fan blade bracket 3i is bent to form a fixed section 32i and an installation section 31i.
  • the fixed section 32i of one fan blade bracket 3i is bolted and fixed to the other.
  • a plurality of fan blade brackets 3i are connected end to end in sequence, forming a polygon around the fan shaft 1i, and the polygon circumscribes the circle of the cross section of the fan shaft 1i.
  • the plurality of fan blade brackets 3i are fixed around the fan shaft 1i by means of bolting, the structure is simple and stable, and the parts are easily and quickly disassembled and replaced.
  • All fan blade supports 3i in any supporting unit form a regular polygon, and the included angle ⁇ formed between the fixed segment 32i and the mounting segment 31i is complementary to the interior angle ⁇ of the regular polygon.
  • four fan blade brackets 3i are arranged in any supporting unit, and the fixed section 32i and the installation section 31i in each fan blade bracket 3i are arranged at right angles, and together they enclose an outer circumference.
  • the cross-sectional circle of the fan shaft 1i is a square.
  • a flat groove 11i is formed on the fan shaft 1i corresponding to any support unit, and a reinforcing plate 4i is welded in the flat groove 11i.
  • the thickness of the reinforcing plate 4i is the same as the groove depth of the flat groove 11i. , that is, the upper surface of the reinforcing plate 4i is in a tangent state with the circle of the cross section of the fan shaft 1i, and the width of the reinforcing plate 4i along the radial direction of the fan shaft 1i is not greater than the diameter of the fan shaft 1i, that is, it is avoided to be larger than the fan blade bracket 3i.
  • the side length of the square makes it impossible to assemble.
  • the width of the reinforcing plate 4i is the same as the width of the flat groove 11i.
  • the position of the flat groove 11i further avoids relative sliding between the fan blade bracket 3i and the fan shaft 1i due to the small clamping force of the fan blade bracket 3i fixed on the fan shaft 1i.
  • the fan shaft 1i As shown in FIG. 5 , in this embodiment, four supporting units are arranged on the fan shaft 1i at intervals in sequence, and four fan blades 2i are arranged on the two supporting units on the left side.
  • the fan blades 2i are sheet-like structures.
  • the blade 2i spans the two support units and is bolted to the mounting sections 31i of the two blade brackets 3i.
  • the fan blades 2i on the two supporting units on the right are the same as those on the left, and the specific structures are not repeated here.
  • the fan blades 2i on the left and right sides form two parallel fan structures, and more air inlet channels can be provided between the two fan structures, so that the fan has a large air supply area and uniform air supply.
  • a plurality of flat grooves 11i may be opened on the fan shaft 1i, and the flat grooves 11i are arranged in a one-to-one correspondence with the fan blade brackets 3i, and the fan blade brackets 3i are directly embedded in the corresponding
  • the flat grooves 11i are bolted end to end and locked on the fan shaft 1i.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne un ventilateur de moissonneuse, comprenant un boîtier de ventilateur (3f), une structure de ventilateur et un dispositif d'entraînement de ventilateur, la structure de ventilateur étant montée dans une cavité de montage cylindrique du boîtier de ventilateur. Deux extrémités du boîtier de ventilateur dans une direction axiale sont respectivement pourvues d'une première entrée d'air (31f) en communication avec l'extérieur. Une paroi latérale du boîtier de ventilateur (3f) est pourvue d'une sortie d'air (33f) dans la direction axiale du boîtier de ventilateur. La largeur de la sortie d'air (33f) est la même que celle de la cavité de montage. La paroi latérale du boîtier de ventilateur (3f) qui est opposée à la sortie d'air (33f) est pourvue d'une deuxième entrée d'air (32f) dans une direction circonférentielle du boîtier de ventilateur. Dans la direction axiale du boîtier de ventilateur (3f), la deuxième entrée d'air (32f) est située au milieu du boîtier de ventilateur (3f). Le milieu du boîtier de ventilateur (3f) est pourvu de la deuxième entrée d'air (32f), de sorte que la deuxième entrée d'air et les premières entrées d'air (31f) au niveau des deux extrémités du boîtier de ventilateur (3f) forment trois entrées d'air qui sont réparties uniformément dans le boîtier de ventilateur, ce qui rend l'admission d'air plus uniforme tout en fournissant une quantité d'admission d'air suffisante.
PCT/CN2021/090156 2020-12-30 2021-04-27 Ventilateur de moissonneuse WO2022142002A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011613729.8A CN112628175A (zh) 2020-12-30 2020-12-30 一种收割机风机
CN202011613729.8 2020-12-30

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Publication Number Publication Date
WO2022142002A1 true WO2022142002A1 (fr) 2022-07-07

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PCT/CN2021/090156 WO2022142002A1 (fr) 2020-12-30 2021-04-27 Ventilateur de moissonneuse

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CN (1) CN112628175A (fr)
WO (1) WO2022142002A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112628200A (zh) * 2020-12-30 2021-04-09 江苏沃得农业机械股份有限公司 一种收割机风扇结构
CN112628175A (zh) * 2020-12-30 2021-04-09 江苏沃得农业机械股份有限公司 一种收割机风机

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2849118A (en) * 1956-02-20 1958-08-26 Massey Ferguson Inc Fanning mill for combines
US4884993A (en) * 1987-10-22 1989-12-05 Claas Ohg Harvester thresher
CN102714984A (zh) * 2012-07-10 2012-10-10 湖南中天龙舟农机有限公司 一种联合收割机的脱粒及清选系统
CN203181618U (zh) * 2013-02-01 2013-09-11 奇瑞重工股份有限公司 一种收割机清选风扇
CN103821756A (zh) * 2014-03-06 2014-05-28 星光农机股份有限公司 一种联合收割机的清选离心风扇及具有该风扇的联合收割机
CN203641107U (zh) * 2013-12-24 2014-06-11 湖州丰源农业装备制造有限公司 一种收割机上风量可调的风机
CN205546560U (zh) * 2015-12-25 2016-09-07 郑州中联收获机械有限公司 一种玉米收获机及其清选装置
EP3208466A1 (fr) * 2016-02-22 2017-08-23 CLAAS Selbstfahrende Erntemaschinen GmbH Soufflante de nettoyage avec carter en plastique et utilisation d'une méthode de moulage rotatif pour fabriquer un carter intégral
CN112628175A (zh) * 2020-12-30 2021-04-09 江苏沃得农业机械股份有限公司 一种收割机风机
CN112655382A (zh) * 2020-12-30 2021-04-16 江苏沃得农业机械股份有限公司 一种收割机送风系统
CN112690086A (zh) * 2020-12-30 2021-04-23 江苏沃得农业机械股份有限公司 一种联合收割机

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2849118A (en) * 1956-02-20 1958-08-26 Massey Ferguson Inc Fanning mill for combines
US4884993A (en) * 1987-10-22 1989-12-05 Claas Ohg Harvester thresher
CN102714984A (zh) * 2012-07-10 2012-10-10 湖南中天龙舟农机有限公司 一种联合收割机的脱粒及清选系统
CN203181618U (zh) * 2013-02-01 2013-09-11 奇瑞重工股份有限公司 一种收割机清选风扇
CN203641107U (zh) * 2013-12-24 2014-06-11 湖州丰源农业装备制造有限公司 一种收割机上风量可调的风机
CN103821756A (zh) * 2014-03-06 2014-05-28 星光农机股份有限公司 一种联合收割机的清选离心风扇及具有该风扇的联合收割机
CN205546560U (zh) * 2015-12-25 2016-09-07 郑州中联收获机械有限公司 一种玉米收获机及其清选装置
EP3208466A1 (fr) * 2016-02-22 2017-08-23 CLAAS Selbstfahrende Erntemaschinen GmbH Soufflante de nettoyage avec carter en plastique et utilisation d'une méthode de moulage rotatif pour fabriquer un carter intégral
CN112628175A (zh) * 2020-12-30 2021-04-09 江苏沃得农业机械股份有限公司 一种收割机风机
CN112655382A (zh) * 2020-12-30 2021-04-16 江苏沃得农业机械股份有限公司 一种收割机送风系统
CN112690086A (zh) * 2020-12-30 2021-04-23 江苏沃得农业机械股份有限公司 一种联合收割机

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