WO2022141987A1 - 一种凹板筛结构及联合收割机 - Google Patents

一种凹板筛结构及联合收割机 Download PDF

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Publication number
WO2022141987A1
WO2022141987A1 PCT/CN2021/089965 CN2021089965W WO2022141987A1 WO 2022141987 A1 WO2022141987 A1 WO 2022141987A1 CN 2021089965 W CN2021089965 W CN 2021089965W WO 2022141987 A1 WO2022141987 A1 WO 2022141987A1
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Prior art keywords
concave plate
screen
grid
transition
grid bars
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PCT/CN2021/089965
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English (en)
French (fr)
Inventor
王军
吴江伟
邹杨昊
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江苏沃得农业机械股份有限公司
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Publication of WO2022141987A1 publication Critical patent/WO2022141987A1/zh

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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
    • A01F12/44—Grain cleaners; Grain separators
    • A01F12/446—Sieving means
    • 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
    • A01D41/02—Self-propelled combines
    • 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

Definitions

  • the application relates to the technical field of agricultural machinery, in particular to a concave screen structure and a combine harvester.
  • the threshing system of the crawler combine harvester can be divided into a longitudinal axial flow threshing and cleaning system and a horizontal axial flow threshing and cleaning system. These two forms of threshing and cleaning systems are the main structural forms currently used in the market.
  • the existing transverse axial flow threshing and cleaning system is divided into a single drum transverse axial flow threshing and cleaning system and a 1.5 drum transverse axial flow threshing and cleaning system.
  • Single-drum threshing is carried out by one drum, and the stroke of the crop is only the length of one drum.
  • a feeding drum with half the length is added in front of the single drum, that is, the additional half drum only plays the role of continuously feeding the crops, but hardly plays the role of threshing.
  • the threshing stroke of the existing transverse axial flow threshing and cleaning system is short.
  • the corresponding concave screen which is arranged under the front drum, has almost no screening effect.
  • the threshing and screening path When encountering varieties that are difficult to remove, the threshing and screening path is too short, and it is easy to cause some of the fed crop grains to be discharged from the body before they are screened out, resulting in losses.
  • the technical problem to be solved by the present application is to overcome the short screening path of the concave screen corresponding to the drum in the prior art, which is easy to cause crop loss.
  • a concave screen structure comprising:
  • Two concave plate screens the inner screen surfaces of which are arc-shaped; they are arranged in parallel in the axial direction and fixed on the frame at intervals along the horizontal direction; the inner screen surface of any one of the concave plate screens and its corresponding drum are arranged in an arc shape. Gap setting;
  • One end of the two concave plate screens located on the same side of the frame is provided with a transition port along the radial direction; the two transition ports are facing each other and communicate with each other;
  • a feeding port for crops is provided.
  • the axial lengths of the two concave plate screens are the same.
  • any one of the concave plate screens includes:
  • the two side shields are arc-shaped respectively; the two side shields are coaxial and oppositely arranged;
  • any one of the grid bars is provided with a plurality of through holes at intervals;
  • a plurality of steel wires are respectively arranged in parallel with the side guards and pass through the through holes on the grid bars in sequence; both ends of the steel wires are respectively fixed on the connecting beam or on the grid bars;
  • the area of any grid cell in the concave plate screen where the feeding port is located is smaller than that in the other concave plate screen grid cell area.
  • all the grid bars are evenly spaced and fixed radially on the side shields.
  • all the through holes on any one of the grid bars are evenly spaced.
  • the above-mentioned concave plate screen structure also includes:
  • a plurality of reinforcing ribs are arranged parallel to the side shields and fixed on the outer screen surface at intervals.
  • the transition plate screen comprises:
  • a plurality of grid bars are arranged in the screen frame at intervals along the transverse direction; a plurality of through holes are provided at intervals on any one of the grid bars;
  • a plurality of steel wires are longitudinally arranged in the screen frame and pass through the through holes on the grid bars in sequence.
  • the grid bars are evenly spaced in the screen frame, and all the through holes of any one of the grid bars are evenly spaced.
  • all the steel wires are evenly spaced in the screen frame and perpendicular to the grid bars.
  • a combine harvester comprising the above-mentioned concave plate screen structure.
  • the concave plate sieve structure provided by the application includes two concave plate sieves, which are respectively the first concave plate sieve provided with the feeding port and the second concave plate sieve arranged adjacent to the first concave plate sieve in the direction of crop transmission.
  • the inner screen surface of each concave plate screen is in the shape of an arc, and the axes of the two concave plate screens are parallel to each other, and are fixed on the frame at intervals along the horizontal direction.
  • the two concave plate screens are respectively provided with transition ports and communicate with each other through the transition ports.
  • the transition plate screen is laid between the two transition ports, and the feeding port is arranged on the first concave plate screen opposite to the transition port and away from the transition port.
  • the transmission path of the crops entering the concave screen from the feeding port is in the shape of a "ji".
  • the structure design makes the layout of the two concave plate screens on the harvester frame compact, and at the same time prolongs the path for the crops to pass through the concave plate screen for threshing and screening, which greatly improves the overall mobility and threshing effect of the harvester.
  • Fig. 1 is the structural representation of the concave plate screen structure in the embodiment of the application
  • FIG. 2 is a schematic diagram 1 of the assembly structure of the concave plate screen structure in the embodiment of the application;
  • FIG. 3 is a second schematic diagram of the assembly structure of the concave plate screen structure in the embodiment of the 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 concave plate screen structure, including two concave plate screens, respectively a first concave plate screen 2b provided with a feeding port 21b and a second concave plate screen 2b disposed adjacent to the first concave plate screen 2b in the direction of crop transmission
  • the concave plate screen 3b, the first concave plate screen 2b and the second concave plate screen 3b have the same length, that is, the length of the screening area is the same.
  • the inner screen surface of each concave plate screen is in the shape of a circular arc, and the axes of the two concave plate screens are parallel to each other, and are fixed on the frame 1 at intervals along the horizontal direction.
  • each concave screen includes two side shields 4b, two connecting beams 5b, a plurality of grid bars 51b, a plurality of steel wires 41b and a plurality of reinforcing bars 8b.
  • the two side shields 4b are arc-shaped respectively, the side shields 4b are coaxial and oppositely arranged, the two ends of the two side shields 4b are welded and fixed together by the connecting beam 5b, and the two side shields 4b are An installation space is enclosed between the two connecting beams 5b.
  • the grid bars 51b are arranged in parallel with the connecting beams 5b and are fixed across the two side shields 4b.
  • Each grid bar 51b has a plurality of through holes evenly spaced.
  • the steel wire 41b is arranged in parallel with the side shield 4b, and passes through the through holes on each grid bar 51b in sequence. Both ends of the steel wire 41b are respectively fixed on the connecting beam. 5b or grid bar 51b. All the grid bars 51b and the steel wires 41b intersect each other to form a plurality of grid units, and all grid units together form a grid-like screen surface.
  • the reinforcing ribs 8b are arranged parallel to the side shields 4b, and are fixed at intervals on the outer screen surface.
  • the grid bars 51b are welded and fixed to the side shields 4b on both sides, and the reinforcing rib 8b and all the grid bars 51b are also fixed by welding.
  • the separation wrapping angles of the first concave plate screen 2b and the second concave plate screen 3b are both 180 degrees, that is, the side guard plate 4b is in a semicircular arc shape as a whole.
  • the separation angle is greater than 180 degrees, the upper space of the concave plate screen is wasted, and the upper part is curved, and the grains are thrown out of the concave plate screen from the upper part, and may fall back into the concave plate screen when falling, which affects the cleaning effect.
  • it is less than 180 degrees the area of the screen surface is reduced, which also affects the cleaning effect.
  • the area of the grid cells in the first concave screen 2b is smaller than the area of the grid cells in the second concave screen 3b, so that only crop grains pass through the first concave screen 2b, and the second intaglio screen It is suitable for passing through the grains and other small debris, so as to avoid the grains being entrained by the debris and discharged from the grass discharge port, causing losses.
  • the distance between two adjacent steel wires 41b in the second concave plate screen 3b is greater than that in the first concave plate screen 2b
  • Both are larger than the spacing between adjacent grid bars 51b and adjacent steel wires 41b in the first concave plate screen 2b.
  • the steel wires 41b in each concave plate screen can be drawn out at intervals as required, so as to increase the area of the grid unit.
  • the two concave plate screens are respectively provided with transition ports 6b and communicated with each other through the transition ports 6b.
  • the transition plate screen 7b is laid between the two transition ports 6b.
  • the transition plate screen 7b includes a screen frame and a screen.
  • the frame has a square structure, and the grid bars 51b are arranged in the screen frame at uniform intervals in the transverse direction.
  • any grid bar 51b is provided with a plurality of through holes at uniform intervals, and the steel wires 41b pass through the through holes on the grid bars 51b in turn in the longitudinal direction. hole.
  • the width direction of the square screen frame is horizontal, and the length direction is vertical.
  • the feeding port 21b is arranged on the side of the first concave screen 2b opposite to the transition port 6b and away from the transition port 6b.
  • three assembling beams 11b are arranged on the frame 1 at intervals, and the connecting beams 5b on both sides of the first concave screen 2b are overlapped and fixed between the first and second two assembling beams 11b.
  • the connecting beams 5b on both sides of the second intaglio screen are overlapped and fixed between the second and third two assembling beams 11b.
  • the transition port 6b is opened close to one side of the frame 1 .
  • a first threshing space is formed between the first cylinder cover 2c and the first concave plate screen 2b, the first drum 2a is installed in the first threshing space, and the first concave plate screen 2b and the first drum
  • the end faces of the toggle teeth of 2a are arranged in a gap.
  • a second threshing space is formed between the second cylinder cover 3c and the second concave plate screen 3b, and the second drum 3a is installed in the second threshing space.
  • the toggle teeth of the second concave plate screen 3b and the second drum 3a There is a gap between the end faces.
  • the transition port 6b communicates with the first threshing space and the second threshing space, and the crops enter the second threshing space from the first threshing space through the transition plate screen 7b.
  • This embodiment provides a combine harvester, including the concave plate screen structure described in Embodiment 1.

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Abstract

一种凹板筛结构，包括：机架（1）；两个凹板筛，其内筛面呈圆弧状；轴向平行设置且沿水平方向间隔固定在机架（1）上；任一凹板筛的内筛面与其对应的滚筒之间呈间隙设置；两个凹板筛上位于机架同侧的一端沿径向开设过渡口（6b）；两个过渡口（6b）正对并相互连通；过渡板筛（7b），铺设在两个凹板筛之间并连接两个过渡口（6b）；其一凹板筛上位于过渡口（6b）的对向并远离过渡口（6b）的另一端开设作物的投料口（21b）。该凹板筛结构使得两个凹板筛在收割机机架上的布局紧凑的同时又能延长作物经过凹板筛脱粒筛选的路径，大大提高了收割机整体的机动性和脱粒效果。一种包括该凹板筛结构的联合收割机。

Description

一种凹板筛结构及联合收割机 技术领域
本申请涉及农业机械技术领域，具体涉及一种凹板筛结构及联合收割机。
背景技术
履带式联合收割机脱粒系统可分为纵轴流式脱粒清选系统与横轴流式脱粒清选系统，此两种形式的脱粒清选系统为目前市场上使用的主要结构形式。
现有的横轴流式脱粒清选系统分为单滚筒横轴流脱粒清选系统和1.5个滚筒横轴流脱粒清选系统。单滚筒即通过一个滚筒进行脱粒，作物的行程只有一个滚筒的长度。1.5个滚筒系统中，在单滚筒前方加设了长度只有其一半的喂入滚筒，即加设的半个滚筒仅起到将作物连续不断的喂入的作用，而几乎不起脱粒作用，因此，现有的横轴流式脱粒清选系统的脱粒行程较短。相应的设置在前方滚筒下方的凹板筛几乎不起筛选作用。
当遇到难脱品种时，脱粒和筛选路径太短，容易导致喂入的部分作物籽粒未来得及筛选出来就被排出机体，造成损失。
发明内容
因此，本申请要解决的技术问题在于克服现有技术中对应滚筒的凹板筛筛选路径短，容易造成作物损失。
根据本申请的一个方面，提出一种凹板筛结构，包括：
机架；
两个凹板筛，其内筛面呈圆弧状；轴向平行设置且沿水平方向间隔固定在所述机架上；任一所述凹板筛的内筛面与其对应的滚筒之间呈间隙设置；
两个所述凹板筛上位于所述机架同侧的一端沿径向开设过渡口；两个所述过渡口正对并相互连通；
过渡板筛，铺设在两个所述凹板筛之间并连接两个所述过渡口；
其一所述凹板筛上位于所述过渡口的对向并远离所述过渡口的另一端开设作物的投料口。
优选地，两个所述凹板筛的轴向长度相同。
任一所述凹板筛包括：
两个侧护板，分别呈圆弧状；两个所述侧护板同轴且相对设置；
两个连接梁，跨接在两个所述侧护板之间，并连接所述侧护板的端部；
多个栅格条，与所述连接梁平行设置并跨接固定在两个所述侧护板之间；任一所述栅格条上间隔开设多个通孔；
多个钢丝，分别与所述侧护板平行设置，并依次穿过所述栅格条上的通孔；所述钢丝的两端分别固定在所述连接梁上或所述栅格条上；
所有所述栅格条和所述钢丝交叉形成网格状的筛面。
优选地，所有所述栅格条和所述钢丝交叉形成的多个网格单元中，所述投料口所在的所述凹板筛中任一网格单元面积小于另一所述凹板筛中的网格单元面积。
优选地，所有所述栅格条均匀间隔并呈辐射状固定在所述侧护板上。
优选地，任一所述栅格条上的所有所述通孔均匀间隔设置。
优选地，上述凹板筛结构还包括：
若干加强筋条，与所述侧护板平行设置并间隔固定在外筛面上。
优选地，所述过渡板筛包括：
筛框，呈方形结构；
多个栅格条，沿横向间隔设置在所述筛框内；任一所述栅格条上间隔开设多个通孔；
多个钢丝，沿纵向设置在所述筛框内，并依次穿过所述栅格条上的通孔。
优选地，所述栅格条均匀间隔设置在所述筛框内，任一所述栅格条的所有通孔均匀间隔设置。
优选地，所有所述钢丝均匀间隔设置在所述筛框内，并与所述栅格条相互垂直。
根据本申请的另一方面，提供了一种联合收割机，包括上述所述的凹板筛结构。
本申请技术方案，具有如下优点：
1.本申请提供的凹板筛结构，包括两个凹板筛，分别为设置投料口的第一凹板筛和与第一凹板筛在作物传输方向上相邻设置的第二凹板筛，每个凹板筛的内筛面呈圆弧状，两个凹板筛的轴线相互平行，且沿水平方向间隔固定在机架上。两个凹板筛上分别开设过渡口，并通过过渡口相互连通，过渡板筛铺设在两个过渡口之间，投料口设置在第一凹板筛上与过渡口对向并远离过渡口的一侧，作物从投料口进入凹板筛中的传输路径呈“几”字型。该结构设计在使得两个凹板筛在收割机机架上的布局紧凑的同时又能延长作物经过凹板筛脱粒筛选的路径，大大提高了收割机整体的机动性和脱粒效果。
附图说明
为了更清楚地说明本申请具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施方式，对于本领域普 通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例中凹板筛结构的结构示意图；
图2为本申请实施例中凹板筛结构的装配结构示意图一；
图3为本申请实施例中凹板筛结构的装配结构示意图二。
附图标记说明：
1、机架；11b、装配梁；2b、第一凹板筛；21b、投料口；3b、第二凹板筛；4b、侧护板；41b、钢丝；5b、连接梁；51b、栅格条；6b、过渡口；7b、过渡板筛；8b、加强筋条；
2a、第一滚筒；3a、第二滚筒；2c、第一筒盖；3c、第二筒盖。
具体实施方式
下面将结合附图对本申请的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术 语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
此外，下面所描述的本申请不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。
实施例1
本实施例提供一种凹板筛结构，包括两个凹板筛，分别为设置投料口21b的第一凹板筛2b和与第一凹板筛2b在作物传输方向上相邻设置的第二凹板筛3b，第一凹板筛2b和第二凹板筛3b的长度相同，即筛选区的长度相同。每个凹板筛的内筛面呈圆弧状，两个凹板筛的轴线相互平行，且沿水平方向间隔固定在机架1上。
如图1所示，每个凹板筛均包括两个侧护板4b、两个连接梁5b、多个栅格条51b、多个钢丝41b和若干加强筋条8b。两个侧护板4b分别呈圆弧状，侧护板4b同轴且相对设置，两个侧护板4b的两端部之间通过连接梁5b焊接固定在一起，两个侧护板4b与两个连接梁5b之间围成安装空间。本实施例中，栅格条51b与连接梁5b平行设置并跨接固定在两个侧护板4b之间，相邻栅格条51b之间的间距相同，沿侧护板4b均匀间隔且呈辐射状分布，即每个栅格条51b所在的平面相交于凹板筛的轴线上，侧护板4b所在的圆弧的圆心位于该轴线上。每个栅格条51b上均匀间隔开设多个通孔，钢丝41b与侧护板4b平行设置，并依次穿过每个栅格条51b上的通孔，钢丝41b的两端分别固定在连接梁5b上或者栅格条51b上。所有栅格条51b和钢丝41b之间相互交叉围成多个网格单元，所有网格单元共同形成网格 状的筛面。本实施例中，加强筋条8b平行侧护板4b设置，并间隔固定在外筛面上。栅格条51b焊接固定在两侧的侧护板4b上，加强筋条8b与所有栅格条51b之间也通过焊接固定。
本实施例中，第一凹板筛2b和第二凹板筛3b的分离包角均为180度，即侧护板4b整体呈半圆弧形。分离包角大于180度时的凹板筛上部空间浪费，其次上部带弧度，籽粒从上部甩出凹板筛，下落时又可能重新落入凹板筛内，影响清选效果。小于180度时，筛面的面积减小，同样影响清选效果。
本实施例中，第一凹板筛2b中的网格单元的面积小于第二凹板筛3b中的网格单元的面积，使得第一凹板筛2b中只通过作物籽粒，第二凹版筛中适于通过籽粒以及其他细小的杂余，避免杂余将籽粒夹带并从排草口排出，造成损失。具体地，两个凹板筛中的相邻的两个栅格条51b之间间距相同时，第二凹板筛3b中相邻两个钢丝41b之间的间距大于第一凹板筛2b中相邻两个钢丝41b之间的间距；或者，当两个凹板筛中相邻的两个钢丝41b之间的间距相同时，则第二凹板筛3b中相邻两个栅格条51b之间的间距大于第一凹板筛2b中相邻两个栅格条51b之间的间距；又或者第二凹板筛3b中的相邻栅格条51b和相邻钢丝41b之间的间距均大于第一凹板筛2b中相邻栅格条51b和相邻钢丝41b之间间距。当然，每个凹板筛中的钢丝41b均可以按需要间隔抽出，以增大网格单元的面积。
再如图1所示，两个凹板筛上分别开设过渡口6b，并通过过渡口6b相互连通，过渡板筛7b铺设在两个过渡口6b之间，过渡板筛7b包括筛框，筛框呈方形结构，栅格条51b横向均匀间隔设置在筛框内，同样地，任一栅格条51b上均匀间隔开设多个通孔，钢丝41b沿纵向依次穿过栅格条51b上的通孔。其中，方形筛框的宽度方向为横向，长度方向为纵向。投料口21b设置在第一凹板筛2b上与过渡口6b对向并远离过渡口6b的一侧，作物从投料口21b进入凹板筛中的传输路径呈“几”字型。
如图2所示，机架1上间隔设置三个装配梁11b，第一凹板筛2b的两侧连接梁5b搭接固定在第一和第二两个装配梁11b之间，同样地，第二凹版筛的两侧连接梁5b搭接固定在第二和第三两个装配梁11b之间。过渡口6b靠近一侧机架1开设。该结构设计在使得两个凹板筛在收割机机架1上的布局紧凑的同时又能提高作物经过凹板筛脱粒筛选的路径，大大提高了收割机整体的机动性和脱粒效果。
如图3所示，第一筒盖2c和第一凹板筛2b之间围成第一脱粒空间，第一滚筒2a安装在第一脱粒空间内，且第一凹板筛2b与第一滚筒2a的拨动齿的端面之间呈间隙设置。第二筒盖3c和第二凹板筛3b之间围成第二脱粒空间，第二滚筒3a安装在第二脱粒空间内，同时，第二凹板筛3b与第二滚筒3a的拨动齿的端面之间呈间隙设置。过渡口6b连通第一脱粒空间和第二脱粒空间，作物从第一脱粒空间经由过渡板筛7b进入第二脱粒空间。
实施例2
本实施例提供一种联合收割机，包括实施例1所述的凹板筛结构。
显然，上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本申请的保护范围之中。

Claims (10)

  1. 一种凹板筛结构，其特征在于，包括：
    机架(1)；
    两个凹板筛，其内筛面呈圆弧状；轴向平行设置且沿水平方向间隔固定在所述机架(1)上；任一所述凹板筛的内筛面与其对应的滚筒之间呈间隙设置；
    两个所述凹板筛上位于所述机架同侧的一端沿径向开设过渡口(6b)；两个所述过渡口(6b)正对并相互连通；
    过渡板筛(7b)，铺设在两个所述凹板筛之间并连接两个所述过渡口(6b)；
    其一所述凹板筛上位于所述过渡口(6b)的对向并远离所述过渡口(6b)的另一端开设作物的投料口(21b)。
  2. 根据权利要求1所述的凹板筛结构，其特征在于，两个所述凹板筛的轴向长度相同。
  3. 根据权利要求1所述的凹板筛结构，其特征在于，任一所述凹板筛包括：
    两个侧护板(4b)，分别呈圆弧状；两个所述侧护板(4b)同轴且相对设置；
    两个连接梁(5b)，跨接在两个所述侧护板(4b)之间，并连接所述侧护板(4b)的端部；
    多个栅格条(51b)，与所述连接梁(5b)平行设置并跨接固定在两个所述侧护板(4b)之间；任一所述栅格条(51b)上间隔开设多个通孔；
    多个钢丝(41b)，分别与所述侧护板(4b)平行设置，并依次穿过所述栅格条(51b)上的通孔；所述钢丝(41b)的两端分别固定在所述连接梁(5b)上或所述栅格条(51b)上；
    所有所述栅格条(51b)和所述钢丝(41b)交叉形成网格状的筛面。
  4. 根据权利要求3所述的凹板筛结构，其特征在于，所有所述栅格条(51b)和所述钢丝(41b)交叉形成的多个网格单元中，所述投料口(21b)所在的所述 凹板筛中任一网格单元面积小于另一所述凹板筛中的网格单元面积。
  5. 根据权利要求4所述的凹板筛结构，其特征在于，所有所述栅格条(51b)均匀间隔并呈辐射状固定在所述侧护板(4b)上。
  6. 根据权利要求3所述的凹板筛结构，其特征在于，任一所述栅格条(51b)上的所有所述通孔均匀间隔设置。
  7. 根据权利要求3所述的凹板筛结构，其特征在于，还包括：
    若干加强筋条(8b)，与所述侧护板(4b)平行设置并间隔固定在外筛面上。
  8. 根据权利要求1-7中任一项所述的凹板筛结构，其特征在于，所述过渡板筛(7b)包括：
    筛框，呈方形结构；
    多个栅格条(51b)，沿横向间隔设置在所述筛框内；任一所述栅格条(51b)上间隔开设多个通孔；
    多个钢丝(41b)，沿纵向设置在所述筛框内，并依次穿过所述栅格条(51b)上的通孔。
  9. 根据权利要求8所述的凹板筛结构，其特征在于，所述栅格条(51b)均匀间隔设置在所述筛框内，任一所述栅格条(51b)的所有通孔均匀间隔设置；
    所有所述钢丝(41b)均匀间隔设置在所述筛框内，并与所述栅格条(51b)相互垂直。
  10. 一种联合收割机，其特征在于，包括权利要求1-9中任一项所述的凹板筛结构。
PCT/CN2021/089965 2020-12-30 2021-04-26 一种凹板筛结构及联合收割机 WO2022141987A1 (zh)

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Publication number Priority date Publication date Assignee Title
CN112690108A (zh) * 2020-12-30 2021-04-23 江苏沃得农业机械股份有限公司 一种凹板筛结构及联合收割机
CN112690110A (zh) * 2020-12-30 2021-04-23 江苏沃得农业机械股份有限公司 一种可调节的凹板筛结构及联合收割机
CN113455199B (zh) * 2021-06-23 2022-06-17 山东省农业科学院 一种挤搓式脱粒分离装置及收获机

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202889992U (zh) * 2012-10-29 2013-04-24 黄宝玉 纵向双轴流谷物脱粒分离装置
CN203860080U (zh) * 2014-05-29 2014-10-08 约翰迪尔（天津）有限公司 脱粒分离装置和具有其的联合收割机
CN105103772A (zh) * 2015-09-02 2015-12-02 星光农机股份有限公司 一种谷子联合收获机及其系统
CN205071677U (zh) * 2015-09-02 2016-03-09 星光农机股份有限公司 一种谷子联合收获机及其脱粒清选装置和脱粒清选系统
US20170339832A1 (en) * 2015-12-14 2017-11-30 Tribine Industries Llc Three Section Threshing Concave Configuration and Adjustment Mechanism for an Agricultural Harvesting Combine
CN112690108A (zh) * 2020-12-30 2021-04-23 江苏沃得农业机械股份有限公司 一种凹板筛结构及联合收割机
CN112690111A (zh) * 2020-12-30 2021-04-23 江苏沃得农业机械股份有限公司 一种双螺旋脱粒输送系统及联合收割机
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

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000037128A (ja) * 1998-07-22 2000-02-08 Yanmar Agricult Equip Co Ltd 普通形コンバイン
CN201238488Y (zh) * 2008-06-19 2009-05-20 福田雷沃国际重工股份有限公司 水稻联合收割机的脱粒清选装置
CN108934410B (zh) * 2018-07-03 2021-05-18 中联重机股份有限公司 凹板筛总成及联合收割机
CN111296075A (zh) * 2020-03-02 2020-06-19 农业农村部南京农业机械化研究所 一种自走式花生联合收获机的摘果装置
CN214178132U (zh) * 2020-12-30 2021-09-14 江苏沃得农业机械股份有限公司 一种凹板筛结构及联合收割机

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202889992U (zh) * 2012-10-29 2013-04-24 黄宝玉 纵向双轴流谷物脱粒分离装置
CN203860080U (zh) * 2014-05-29 2014-10-08 约翰迪尔（天津）有限公司 脱粒分离装置和具有其的联合收割机
CN105103772A (zh) * 2015-09-02 2015-12-02 星光农机股份有限公司 一种谷子联合收获机及其系统
CN205071677U (zh) * 2015-09-02 2016-03-09 星光农机股份有限公司 一种谷子联合收获机及其脱粒清选装置和脱粒清选系统
US20170339832A1 (en) * 2015-12-14 2017-11-30 Tribine Industries Llc Three Section Threshing Concave Configuration and Adjustment Mechanism for an Agricultural Harvesting Combine
CN112690108A (zh) * 2020-12-30 2021-04-23 江苏沃得农业机械股份有限公司 一种凹板筛结构及联合收割机
CN112690111A (zh) * 2020-12-30 2021-04-23 江苏沃得农业机械股份有限公司 一种双螺旋脱粒输送系统及联合收割机
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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