WO2022127657A1 - 一种旋耕播种开沟镇压复式作业机 - Google Patents

一种旋耕播种开沟镇压复式作业机 Download PDF

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Publication number
WO2022127657A1
WO2022127657A1 PCT/CN2021/136270 CN2021136270W WO2022127657A1 WO 2022127657 A1 WO2022127657 A1 WO 2022127657A1 CN 2021136270 W CN2021136270 W CN 2021136270W WO 2022127657 A1 WO2022127657 A1 WO 2022127657A1
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WIPO (PCT)
Prior art keywords
trenching
ditching
rotary
pressing
frame
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PCT/CN2021/136270
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English (en)
French (fr)
Inventor
刘伟
胡建平
赵军
徐华岗
张永辉
赵兴升
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江苏大学
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Publication of WO2022127657A1 publication Critical patent/WO2022127657A1/zh

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B49/00—Combined machines
    • A01B49/04—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools
    • A01B49/06—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising
    • A01B49/065—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising the soil-working tools being actively driven
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B49/00—Combined machines
    • A01B49/02—Combined machines with two or more soil-working tools of different kind
    • A01B49/022—Combined machines with two or more soil-working tools of different kind at least one tool being actively driven
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
    • A01C5/06—Machines for making or covering drills or furrows for sowing or planting
    • A01C5/062—Devices for making drills or furrows
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
    • A01C5/06—Machines for making or covering drills or furrows for sowing or planting
    • A01C5/066—Devices for covering drills or furrows
    • A01C5/068—Furrow packing devices, e.g. press wheels

Definitions

  • the invention relates to the technical field of agricultural machinery, in particular to a rotary plowing, sowing, ditching and pressing compound working machine.
  • the Jianghuai region is one of the main wheat producing areas in my country and adopts a rice-wheat rotation planting system.
  • the rural left-behind population shows an aging trend, and there are fewer and fewer laborers engaged in agricultural production.
  • the intensification of planting has become a trend. Small and single seeding machinery can no longer meet the supporting needs of mechanized production and large tractors. Machine tools are gradually becoming mainstream in the region. In the Jianghuai region of my country, there is a lot of precipitation.
  • the present invention provides a rotary tillage, seeding, ditching and suppressing compound working machine, which can perform rotary tillage, fertilization, sowing, ditching and suppression within the full working width.
  • the quality is more excellent, which is conducive to the germination of seeds, and the land resources can also be used reasonably to improve the crop yield.
  • the present invention achieves the above technical purpose through the following technical means.
  • a rotary tillage, ditching and repression compound working machine comprising a fertilizing and seeding device, an intermediate rotary tillage and trenching device and a frame, the lower part of the frame is provided with an intermediate rotary tillage and trenching device, and the upper part of the intermediate rotary tillage and trenching device is arranged.
  • a fertilization and seeding device connected with the frame, and also includes a liftable opener and a segmented pressing wheel device.
  • the segmented pressing wheel device includes a front pressing wheel and a rear pressing wheel, and the front pressing wheel includes a front pressing roller shaft, a front pressing roller and a connecting rod; the two sides of the front pressing roller shaft are respectively The rotating pair is equipped with a front pressing roller, the two ends of the front pressing roller are respectively sleeved with one end of the connecting rod, and the other end of the connecting rod is hinged with the frame; the front pressing roller is located in the middle of the rotary tillage ditching device behind the rotary tiller;
  • the rear pressing wheel includes a connecting plate, a rear pressing roller shaft and a rear pressing roller; one end of the connecting plate is connected with the rear pressing roller shaft through a bracket, and the connecting plate is connected with the frame sliding pair; the A rear-mounted pressing roller is installed on the rotating pair on the shaft of the rear-mounted pressing roller, and the rear-mounted pressing roller is located behind the liftable opener; the other end of the connecting plate is connected with the liftable opener for realizing the liftable opener Switching with the working state of the rear repression wheel.
  • a chute is provided in the middle of the connecting plate, and a guide post of the chute is provided on the frame, and the guide post of the chute is located in the chute. sports.
  • the bracket includes a vertical connecting rod and a cross beam, two ends of the rear-mounted pressing roller shaft are respectively connected with one end of the vertical connecting rod, the other ends of the two vertical connecting rods are connected by a cross beam, and the cross beam is connected to one end of the vertical connecting rod. Connection board connection.
  • the liftable opener includes a trenching shovel, a connecting rod mechanism and a driving mechanism, the trenching shovel is connected with the driving mechanism through a connecting rod mechanism, and one hinge point of the connecting rod mechanism is connected with the other end of the connecting plate, Through the synchronization of the drive mechanism, the working state of the trenching shovel and the rear pressing wheel can be switched.
  • the link mechanism makes the rear pressing wheel in the non-working state through the connecting plate; In the non-working state, the link mechanism makes the rear-mounted pressing wheel in the pressing working state through the connecting plate.
  • a vertical rod is installed between the connecting rod and the frame, and a compression spring is sleeved on the vertical rod.
  • the rotary plowing and seeding ditching and crushing compound working machine of the present invention can avoid crushing the edge of the ditch opened during the ditching operation through the front crushing wheel in the segmented crushing wheel.
  • the compaction wheel can ensure that the soil after rotary tillage in the entire width can be compacted without ditching, which is conducive to seed germination.
  • FIG. 1 is a schematic structural diagram of the rotary tillage, sowing, trenching and pressing compound working machine according to the present invention.
  • Fig. 2 is a schematic diagram of the intermediate rotary tillage trenching device according to the present invention.
  • FIG. 3 is a schematic diagram of the liftable opener according to the present invention.
  • FIG. 4 is a schematic diagram of the segmented pressing wheel according to the present invention.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as “first”, “second” may expressly or implicitly include one or more of that feature. In the description of the present invention, “plurality” means two or more, unless otherwise expressly and specifically defined.
  • the terms “installed”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components.
  • installed e.g., it may be a fixed connection or a detachable connection , or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components.
  • the rotary tillage, seeding, trenching and repression compound working machine includes a fertilization and seeding device 2, an intermediate rotary tillage trenching device 4, a frame 1, a liftable trench opener 3 and a segmented repression device. Wheel device 5.
  • An intermediate rotary tillage and ditching device 4 is installed horizontally at the lower part of the frame 1 , and a fertilization and seeding device 2 connected to the frame 1 is arranged above the intermediate rotary tillage and trenching device 4 .
  • FIG. 1 the rotary tillage, seeding, trenching and repression compound working machine according to the present invention includes a fertilization and seeding device 2, an intermediate rotary tillage trenching device 4, a frame 1, a liftable trench opener 3 and a segmented repression device. Wheel device 5.
  • An intermediate rotary tillage and ditching device 4 is installed horizontally at the lower part of the frame 1 , and a fertilization and seeding device 2 connected to the frame 1 is arranged above the intermediate rotary t
  • the intermediate rotary tillage and trenching device 4 includes a rotary tiller shaft 41 , an intermediate trenching cutter head 42 , a trenching rotary tiller 43 and a rotary tiller 44 ;
  • the rotary tiller shaft 41 is installed horizontally On the frame, a middle ditching cutter head 42 that rotates synchronously with the rotary tiller shaft 41 is fixed at the middle position.
  • the ditching rotary cutter 43 is fixed on both sides of the ditching cutter disc 42.
  • the middle ditching cutter disc 42 drives the ditching rotary cutter 43 to rotate to loosen the soil.
  • the rotary blade shaft 41 is also provided with a plurality of groups of rotary blades 44 arranged in sequence, and each group of rotary blades 44 includes a plurality of circumferentially arranged blades for rotary cultivation of land.
  • the liftable trench opener 3 is used to lift the trenching shovel, and its function is to cooperate with the front trenching rotary cultivator to perform trenching operation and shovel out the drainage ditch.
  • FIG. 3 shows an embodiment of a liftable opener 3.
  • the liftable opener 3 includes a trenching shovel 31, a trenching shovel bow 32, a support arm 33, a hydraulic device 34 and a lifting crank 35.
  • the support arm One end of 33 is hinged to the frame main beam 12, one end of the hydraulic cylinder 34 is installed on the frame beam 13, and the other end of the hydraulic cylinder 34 is hinged with the middle of the support arm 33, so as to make the support arm 33 around the hinge point with the frame 1 Rotate in the vertical plane.
  • the other end of the support arm 33 is connected to the trenching shovel bow 32, the trenching shovel 31 is fixedly installed on the trenching shovel bow 32, one end of the lifting crank 35 is hinged to the frame 1, and the other end is connected to the trenching shovel bow 32,
  • the support arm 33 , the plough bow 32 of the trenching shovel and the lifting crank 35 move at the same time, so that the trenching shovel 31 forms a reasonable movement track.
  • the horizontal position of the blade tip of the ditching shovel 31 is higher than the lowest point of the blade tip track circle of the ditching rotary blade 43.
  • the blade of the ditching shovel 31 There is a gap in the horizontal direction between the tip and the tool tip track circle of the trenching rotary blade 43 , and the diameter of the tool tip track circle of the trenching blade 31 is larger than the diameter of the tool tip track circle of the trenching rotary cutter 43 by no more than 2 cm.
  • the segmented pressing wheel device 5 includes a front pressing wheel 51 and a rear pressing wheel 52
  • the front pressing wheel includes a front pressing roller shaft 511 , a front pressing roller 512 , a vertical pressing
  • the other end of the connecting rod 514 is hinged with the frame;
  • the front pressing roller 512 is located behind the rotary tiller 44 of the intermediate rotary tiller and trenching device 4;
  • the surface of the connecting rod 514 is fixedly connected with a vertical rod 513, which is 513 is sheathed with a compression spring 515;
  • the rear pressing wheel 52 includes a connecting plate 521, a chute guide post 522, a rear pressing roller shaft 523, a rear pressing roller 524, a vertical
  • the hydraulic cylinder 34 When the ditching operation is required, the hydraulic cylinder 34 is extended, and the supporting arm 33 is driven to move downward in the vertical plane around the hinge point with the main beam 12 of the frame.
  • the shovel bow 32 reaches the predetermined position, so that the diameter of the tool tip track circle of the trenching shovel 31 just connected to the trenching shovel bow 32 is larger than the diameter of the tool tip track circle of the trenching rotary cutter 43 and no more than 2 cm, and the diameter of the tool tip track circle of the trenching shovel 31 is not more than 2 cm.
  • the horizontal position of the blade tip is higher than the lowest point of the blade tip track circle of the ditching rotary cultivator 43.
  • the end of the connecting plate 521 in the rear pressing wheel 52 that is connected with the support arm 33 moves downward, and the rear pressing roller The end close to 524 is lifted, at this time the rear pressing wheel 52 does not work, only the trenching shovel 31 and the front pressing wheel 51 perform trenching and pressing operations; when the trenching operation is not required, the hydraulic cylinder 34 is shortened, and the supporting The arm 33 moves upward around the frame main beam 12 to lift the trenching shovel bow 32 and the trenching shovel 31. At this time, the trenching shovel 31 no longer operates. Under the combined action of the groove guide posts 522, the rear pressing wheel 52 descends to a suitable position to perform the pressing work, and completes the full width pressing work together with the front pressing wheel 51.

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Working Implements (AREA)

Abstract

提供了一种旋耕播种开沟镇压复式作业机，包括施肥播种装置(2)、中间旋耕开沟装置(4)、机架(1)、可提升开沟器(3)和分段式镇压轮装置(5)，分段式镇压轮装置(5)包括前置镇压轮(51)和后置镇压轮(52)，前置镇压轮(51)包括前置镇压滚筒轴(511)、前置镇压滚筒(512)和连杆(514)；后置镇压轮(52)包括连接板(521)、后置镇压滚筒轴(523)和后置镇压滚筒(524)；连接板(521)一端通过支架与后置镇压滚筒轴(523)连接，且连接板(521)与机架(1)滑动副连接；后置镇压滚筒轴(523)上转动副安装后置镇压滚筒(524)，后置镇压滚筒(524)位于可提升开沟器(3)后方；连接板(521)另一端与可提升开沟器(3)连接，用于实现可提升开沟器(3)与后置镇压轮(52)工作状态的切换。该旋耕播种开沟镇压复式作业机能够在全作业幅宽内进行复式作业，作业质量更加优秀。

Description

一种旋耕播种开沟镇压复式作业机 技术领域
本发明涉及农用机械技术领域，特别是一种旋耕播种开沟镇压复式作业机。
背景技术
江淮地区是我国小麦主要产区之一，采用稻麦轮作种植制度。近年来随着该地区经济的增长，人民生活水平的提高，越来越多的青壮劳动力选择外出务工，农村留守人口呈现出老龄化趋势，从事农业生产的劳动力越来越少，与此同时，随着我国对大中型拖拉机、复合型和多功能型农机具的补贴力度加大，种植集约化成为一种趋势，小型单一的播种机具已经不能满足机械化生产和大型拖拉机的配套需求，复式作业机具逐渐成为该地区主流。我国江淮地区降水量大，稻茬地种植时一般要进行开沟排水，保证排水畅通，做到雨止田干、沟无积水，防止湿害的发生。目前大部分开沟作业是进行旋耕播种后再通过人工开沟或者开沟机进行开沟，作业较为繁琐，浪费时间和人力；而现有能够提升开沟的旋耕施肥播种机存在的问题是不进行开沟作业时，原开沟部位土壤得不到镇压，影响种子发芽。因此当前需要一种开沟作业与镇压作业联动的旋耕施肥播种开沟复式作业机。
发明内容
针对现有技术中存在的不足，本发明提供了一种旋耕播种开沟镇压复式作业机，能够在全作业幅宽内进行旋耕、施肥、播种、开沟、镇压的复式作业机，作业质量更加优秀，利于种子发芽，土地资源也可以得到合理利用，提高农作物产量。
本发明是通过以下技术手段实现上述技术目的的。
一种旋耕播种开沟镇压复式作业机，包括施肥播种装置、中间旋耕开沟装置和机架，所述机架下部安装中间旋耕开沟装置，所述中间旋耕开沟装置上方设有与机架连接的施肥播种装置，还包括可提升开沟器和分段式镇压轮装置，所述可提升开沟器安装在中间旋耕开沟装置的开沟旋耕刀后方，用于与开沟旋耕刀配合进行开沟作业；
所述分段式镇压轮装置包括前置镇压轮和后置镇压轮，所述前置镇压轮包括前置镇压滚筒轴、前置镇压滚筒和连杆；所述前置镇压滚筒轴两侧分别转动副安装前置镇压滚筒，所述前置镇压滚筒轴两端分别套接连杆的一端，所述连杆的另一端与机架铰接；所述前置镇压滚筒位于中间旋耕开沟装置的旋耕刀后方；
所述后置镇压轮包括连接板、后置镇压滚筒轴和后置镇压滚筒；所述连接板一端通过支架与后置镇压滚筒轴连接，且所述连接板与机架滑动副连接；所述后置镇压滚筒轴上转动副 安装后置镇压滚筒，所述后置镇压滚筒位于可提升开沟器后方；所述连接板另一端与可提升开沟器连接，用于实现可提升开沟器与后置镇压轮工作状态的切换。
进一步，所述连接板中间设有滑槽，所述机架上设有滑槽导柱，所述滑槽导柱位于滑槽内，通过可提升开沟器动作使连接板与机架滑动副运动。
进一步，所述支架包括竖直连接杆和横梁，所述后置镇压滚筒轴两端分别连接竖直连接杆一端，两个所述竖直连接杆另一端之间通过横梁连接，所述横梁与连接板连接。
进一步，所述可提升开沟器包括开沟铲、连杆机构和驱动机构，所述开沟铲通过连杆机构与驱动机构连接，所述连杆机构一个铰接点与连接板另一端连接，通过驱动机构同步使开沟铲和后置镇压轮工作状态的切换。
进一步，当驱动机构通过连杆机构使开沟铲处于开沟作业状态时，所述连杆机构通过连接板使后置镇压轮处于非工作状态；当驱动机构通过连杆机构使开沟铲处于非作业状态时，所述连杆机构通过连接板使后置镇压轮处于镇压作业状态。
进一步，所述连杆与机架之间安装竖直杆，所述竖直杆上套有压缩弹簧。
本发明的有益效果在于：
本发明所述的旋耕播种开沟镇压复式作业机，通过分段式镇压轮中前置镇压轮可以避免将开沟作业时开出的沟边压垮，而与开沟作业联动的后置镇压轮则能保证在不开沟作业时，整个幅宽内旋耕过后的土壤都能被压紧，有利于种子发芽。
附图说明
图1为本发明所述的旋耕播种开沟镇压复式作业机结构示意图。
图2为本发明所述的中间旋耕开沟装置示意图。
图3为本发明所述的可提升开沟器示意图。
图4为本发明所述的分段式镇压轮示意图。
图中：
1-机架；2-施肥播种装置；3-可提升开沟器；4-中间旋耕开沟装置；5-分段式镇压轮装置；12-机架主梁；13-开沟机架横梁；31-开沟铲；32-开沟铲犁弓；33-支臂；34-液压缸；35-提升曲柄；41-旋耕刀轴；42-中间开沟刀盘；43-开沟旋耕刀；44-旋耕刀；51-前置镇压轮；511-筒轴；512-前置镇压滚筒；513-竖直杆；514-连杆；515-压缩弹簧；52-后置镇压轮；521-连接板；522-滑槽导柱；523-后置镇压滚筒轴；524-后置镇压滚筒；525-竖直连接杆；526-横梁；527-方管。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或 类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“轴向”、“径向”、“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发明和简化描述，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发明的限制。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或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，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，可以根据具体情况理解上述术语在本发明中的具体含义。
如图1所示，本发明所述的旋耕播种开沟镇压复式作业机，包括施肥播种装置2、中间旋耕开沟装置4、机架1、可提升开沟器3和分段式镇压轮装置5。所述机架1下部水平安装中间旋耕开沟装置4，所述中间旋耕开沟装置4上方设有与机架1连接的施肥播种装置2。如图2所示，所述中间旋耕开沟装置4包括旋耕刀轴41、中间开沟刀盘42、开沟旋耕刀43和旋耕刀44；所述旋耕刀轴41水平安装在机架上，在旋耕刀轴41的中间位置固定有与其同步旋转的中间开沟刀盘42，中间开沟刀盘42呈平面圆形结构，与旋耕刀轴41垂直，在中间开沟刀盘42的两侧均固定有开沟旋耕刀43，当旋耕刀轴41旋转时，中间开沟刀盘42即驱动开沟旋耕刀43旋转，将土壤旋松。除了开沟旋耕刀43之后，在旋耕刀轴41上还设有依次布置的多组旋耕刀44，每组旋耕刀44均包括周向布置的多个，用于旋耕土地。
所述可提升开沟器3用于提升开沟铲，作用是与前面的开沟旋耕刀配合进行开沟作业，铲出排水沟。如图3为可提升开沟器3实施例，所述可提升开沟器3包括开沟铲31、开沟铲犁弓32、支臂33、液压装置34和提升曲柄35，所述支臂33一端铰接于机架主梁12，所述液压缸34一端安装在机架横梁13，所述液压缸34另一端与支臂33中间铰接，用于使支臂33绕与机架1铰接点在竖直平面内旋转。所述支臂33另一端连接开沟铲犁弓32，开沟铲31固定安装在开沟铲犁弓32，提升曲柄35一端铰接于机架1，另一端连接于开沟铲犁弓32，支臂33、开沟铲犁弓32和提升曲柄35同时运动，使开沟铲31形成合理的运动轨迹。开沟 时，根据实际的作业需求调整好开沟铲31的位置，开沟铲31的刀尖水平位置要高于开沟旋耕刀43的刀尖轨迹圆最低点，开沟铲31的刀尖与开沟旋耕刀43的刀尖轨迹圆在水平方向上具有间隙，且开沟铲31的刀尖轨迹圆直径大于开沟旋耕刀43刀尖轨迹圆直径不超过2cm。
如图4所示，所述分段式镇压轮装置5包括前置镇压轮51和后置镇压轮52，所述前置镇压轮包括前置镇压滚筒轴511、前置镇压滚筒512、竖直杆513、连杆514和压缩弹簧515；所述前置镇压滚筒轴511两侧分别转动副安装前置镇压滚筒512，所述前置镇压滚筒轴511两端分别套接连杆514的一端，所述连杆514的另一端与机架铰接；所述前置镇压滚筒512位于中间旋耕开沟装置4的旋耕刀44后方；连杆514表面固定连接有竖直杆513，竖直杆513套有压缩弹簧515；后置镇压轮52包括连接板521、滑槽导柱522、后置镇压滚筒轴523、后置镇压滚筒524、竖直连接杆525和横梁526，所述后置镇压滚筒轴523上转动副安装后置镇压滚筒524，所述后置镇压滚筒524位于可提升开沟器3后方；后置镇压滚筒轴523外表面套有竖直连接杆525，竖直连接杆525另一端刚性与横梁526刚性连接，横梁526与连接板521一端相连，所述连接板521另一端与开沟铲犁弓32铰接于支臂33一端同一处，连接板521中间有滑槽，滑槽导柱522通过方管527连接于机架1，滑槽导柱522在滑槽内往返运动。
工作过程：
当需要进行开沟作业时，液压缸34伸长，驱动支臂33绕与机架主梁12铰接点在竖直平面内向下运动，在支臂33、提升曲柄35的共同作用下，开沟铲犁弓32到达预定位置，使得刚接在开沟铲犁弓32上的开沟铲31的刀尖轨迹圆直径大于开沟旋耕刀43刀尖轨迹圆直径不超过2cm，开沟铲31的刀尖水平位置高于开沟旋耕刀43的刀尖轨迹圆最低点，与此同时后置镇压轮52中的连接板521与支臂33连接的一端向下运动，与后置镇压滚筒524相近的一端被抬升，此时后置镇压轮52不作业，只有开沟铲31、前置镇压轮51进行开沟、镇压作业；当不需要进行开沟作业时，液压缸34缩短，支臂33绕机架主梁12向上运动，将开沟铲犁弓32及开沟铲31提升，此时开沟铲31不再进行作业，相对应的，在支臂33、连接板521、滑槽导柱522的共同作用下，后置镇压轮52下降到合适位置进行镇压工作，与前置镇压轮51共同完成全幅宽的镇压工作。
所述实施例为本发明的优选的实施方式，但本发明并不限于上述实施方式，在不背离本发明的实质内容的情况下，本领域技术人员能够做出的任何显而易见的改进、替换或变型均属于本发明的保护范围。

Claims (6)

  1. 一种旋耕播种开沟镇压复式作业机，包括施肥播种装置(2)、中间旋耕开沟装置(4)和机架(1)，所述机架(1)下部安装中间旋耕开沟装置(4)，所述中间旋耕开沟装置(4)上方设有与机架(1)连接的施肥播种装置(2)，其特征在于，还包括可提升开沟器(3)和分段式镇压轮装置(5)，所述可提升开沟器(3)安装在中间旋耕开沟装置(4)的开沟旋耕刀后方，用于与开沟旋耕刀配合进行开沟作业；
    所述中间旋耕开沟装置(4)包括旋耕刀轴(41)、中间开沟刀盘(42)、开沟旋耕刀(43)和旋耕刀(44)；所述旋耕刀轴(41)水平安装在机架上，在旋耕刀轴(41)的中间位置固定有与其同步旋转的中间开沟刀盘(42)，在中间开沟刀盘(42)的两侧均固定有开沟旋耕刀(43)；在旋耕刀轴(41)上设有多组旋耕刀(44)；
    所述分段式镇压轮装置(5)包括前置镇压轮(51)和后置镇压轮(52)，所述前置镇压轮(51)包括前置镇压滚筒轴(511)、前置镇压滚筒(512)和连杆(514)；所述前置镇压滚筒轴(511)两侧分别转动副安装前置镇压滚筒(512)，所述前置镇压滚筒轴(511)两端分别套接连杆(514)的一端，所述连杆(514)的另一端与机架铰接；所述前置镇压滚筒(512)位于中间旋耕开沟装置(4)的旋耕刀(44)后方；
    所述后置镇压轮(52)包括连接板(521)、后置镇压滚筒轴(523)和后置镇压滚筒(524)；所述连接板(521)一端通过支架与后置镇压滚筒轴(523)连接，且所述连接板(521)与机架(1)滑动副连接；所述后置镇压滚筒轴(523)上转动副安装后置镇压滚筒(524)，所述后置镇压滚筒(524)位于可提升开沟器(3)后方；所述连接板(521)另一端与可提升开沟器(3)连接，用于实现可提升开沟器(3)与后置镇压轮(52)工作状态的切换。
  2. 根据权利要求1所述的旋耕播种开沟镇压复式作业机，其特征在于，所述连接板(521)中间设有滑槽，所述机架(1)上设有滑槽导柱(522)，所述滑槽导柱(522)位于滑槽内，通过可提升开沟器(3)动作使连接板(521)与机架(1)滑动副运动。
  3. 根据权利要求1所述的旋耕播种开沟镇压复式作业机，其特征在于，所述支架包括竖直连接杆(525)和横梁(526)，所述后置镇压滚筒轴(523)两端分别连接竖直连接杆(525)一端，两个所述竖直连接杆(525)另一端之间通过横梁(526)连接，所述横梁(526)与连接板(521)连接。
  4. 根据权利要求1所述的旋耕播种开沟镇压复式作业机，其特征在于，所述可提升开沟器(3)包括开沟铲(31)、连杆机构和驱动机构，所述开沟铲(31)通过连杆机构与驱动机构连接，所述连杆机构一个铰接点与连接板(521)另一端连接，通过驱动机构同步使开沟铲(31)和后置镇压轮(52)工作状态的切换。
  5. 根据权利要求4所述的旋耕播种开沟镇压复式作业机，其特征在于，当驱动机构通过 连杆机构使开沟铲(31)处于开沟作业状态时，所述连杆机构通过连接板(521)使后置镇压轮(52)处于非工作状态；当驱动机构通过连杆机构使开沟铲(31)处于非作业状态时，所述连杆机构通过连接板(521)使后置镇压轮(52)处于镇压作业状态。
  6. 根据权利要求1所述的旋耕播种开沟镇压复式作业机，其特征在于，所述连杆(514)与机架(1)之间安装竖直杆(513)，所述竖直杆(513)上套有压缩弹簧(515)。
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