WO2022100172A1 - 苗带清茬及纸带播种一体作业装置 - Google Patents

苗带清茬及纸带播种一体作业装置 Download PDF

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Publication number
WO2022100172A1
WO2022100172A1 PCT/CN2021/112023 CN2021112023W WO2022100172A1 WO 2022100172 A1 WO2022100172 A1 WO 2022100172A1 CN 2021112023 W CN2021112023 W CN 2021112023W WO 2022100172 A1 WO2022100172 A1 WO 2022100172A1
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Prior art keywords
stubble
paper tape
soil
clearing
fixed
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PCT/CN2021/112023
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English (en)
French (fr)
Inventor
史嵩
张荣芳
周纪磊
刘虎
位国建
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山东省农业机械科学研究院
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Publication of WO2022100172A1 publication Critical patent/WO2022100172A1/zh

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/006—Minimum till seeding
    • 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
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
    • A01C7/12—Seeders with feeding wheels
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/835—Mowers; Mowing apparatus of harvesters specially adapted for particular purposes
    • A01D34/8355—Mowers; Mowing apparatus of harvesters specially adapted for particular purposes for cutting up or crushing remaining standing stalks, e.g. stubble

Definitions

  • the invention relates to the technical field of stubble clearing and sowing in seedling belts, in particular to an integrated operation device for clearing stubbles in seedling belts and paper belt sowing.
  • the conservation tillage mode has been comprehensively promoted in the northern arid regions, so as to avoid less tillage and straw returning to the field.
  • the former can reduce soil disturbance, protect the plough layer and reduce pollution emissions during agricultural production, while the latter can improve soil structure and fertilization ability and increase farmland storage capacity. Water conservation and moisture retention capacity.
  • the purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and to provide an integrated operation device for clearing the stubble of the seedling belt and sowing with the paper belt, which has the functions of clearing the stubble of the seedling belt and sowing with the paper belt, has a simple structure, reasonable design, and can be cleaned in each row.
  • a seedling belt with no stalks on the surface is formed.
  • the opener opens the trench, the paper belt wrapped with the crop seeds is buried in it and covered with soil to suppress it, so as to improve the quality and efficiency of sowing operations and save manpower and material resources.
  • the present invention adopts the following technical solutions:
  • the integrated operation device for clearing stubble with seedlings and sowing with paper tape includes a main body bracket.
  • the main body support is connected with a stubble clearing mechanism and a paper tape planting module from front to back.
  • the stubble clearing mechanism includes a first connecting frame, the upper end of the first connecting frame is fixed with the main body bracket, the lower end is connected with the first support plate, the lower end of the first support plate is provided with a bearing, and the bearing passes through the two ends of the support plate.
  • the flange plate is connected with the first support plate, a knife shaft is nested outside the bearing, a knife magazine is welded and fixed on the outside of the knife shaft, and four evenly distributed stubble cleaning knives are connected and fixed at the knife magazine.
  • the stubble clearing knife is L-shaped with a curved surface, and its protruding side is a blade, which is convenient for removing residual stubble during rotation.
  • a pressing wheel bracket is fixedly connected below the main body bracket, the pressing wheel bracket is L-shaped, the longer section is laterally arranged, and the shorter section is perpendicular to the longer section and faces the upper side of the longer section.
  • a second connecting frame is connected and fixed under the pressing wheel bracket, the second connecting frame is fixed at the position where the pressing wheel bracket is close to the main body bracket, and a trenching shovel is fixedly installed under the second connecting frame, which opens on the ground when the whole device is pushed forward. Take out the seedling tape for burying the seeds.
  • the seeding mechanism includes a paper tape winding wheel, a soil entry guide tube, a soil entry guide wheel and a soil covering wheel.
  • the paper tape winding wheel is a cylinder with grooves at the circumference arranged horizontally, and the central axis of the paper tape winding wheel is provided with a penetration
  • both ends of the first support shaft are fixedly connected to one end of the two second support plates, and the opposite ends of the second support plates are fixed on the main body bracket.
  • the soil entry guide pipe is arranged behind the relative stubble clearing mechanism of the second connecting frame, and the brackets fixed up and down through the soil entry guide pipe are respectively fixedly connected to the pressing wheel bracket and the second connecting bracket for guiding the seed belt.
  • the soil entry guide wheel is installed directly below the soil entry guide pipe, the center of the soil entry guide wheel is provided with a soil entry guide wheel bearing, and is connected with the second connecting frame through the soil entry guide wheel bearing.
  • Two completely identical and symmetrically arranged soil-covering wheels are arranged behind the soil-entry guide wheel relative to the stubble-clearing mechanism.
  • the soil-covering wheel is installed at the rear of the soil-entry guide wheel, and the soil-covering wheel bearing is provided in the center and on both sides of the soil-covering wheel bearing.
  • the two soil covering wheels are fixed in the shape of "eight", and the soil is covered on the seeds after the seed belt is buried.
  • the center of the pressing wheel runs through a second support shaft, the two sides of the second support shaft are respectively fixed on the same end of the two third support plates, and the opposite ends of the two third support plates are fixed on the vertically arranged lifting and lowering plates.
  • the lifting block is a hollow cuboid, the lifting block is sleeved on the vertical part of the pressing wheel bracket, and is fixed with the pressing wheel bracket by the bolts arranged in the middle of the lifting block. The displacement of the bracket, thereby driving the lifting and lowering of the pressing wheel, effectively controls the degree of soil pressing.
  • the lifting block is provided with an adjustment handle, and the adjustment handle is fixed on the top of the lifting block, so as to facilitate the movement of the lifting block as a whole.
  • the invention uses the blade of the L-shaped stubble cleaning knife to cut off the stubble, and the stubble is smashed and thrown between the stubble cleaning knives along with the high-speed rotation of the knife shaft, and then the band-shaped sowing area required for sowing is cleared out, providing a good solution for sowing.
  • Fig. 1 is the structural representation of the device
  • Figure 2 is a top view of the device
  • the integrated operation device for clearing stubble and paper tape sowing includes a main body bracket.
  • the main body bracket is connected with a stubble clearing mechanism and a paper tape planting module from front to back.
  • the paper tape planting module includes a trenching shovel 3 , the seeding mechanism and the pressing wheel 7,
  • the stubble clearing mechanism includes the first connecting bracket 12 fixed on the front end of the main body bracket, the upper end of the first connecting bracket 12 is fixed with the main body bracket by bolts, and the lower end is connected to the first supporting plate.
  • the lower end is provided with a bearing
  • the bearing is fixed with the first support plate through the flange plate fixed at both ends with bolts
  • the outer side of the bearing is nested with a tool shaft
  • the outer side of the tool shaft is welded and fixed with a tool magazine
  • the tool magazine is fixed with four bolts.
  • the evenly distributed stubble cleaning knives 1, the stubble cleaning knives 1 are L-shaped with a curved surface, and the protruding side is a blade.
  • a pressing wheel bracket 7 is fixedly connected below the main body bracket.
  • the pressing wheel bracket 7 is L-shaped, the longer section is laterally arranged, and the shorter section is perpendicular to the longer section and faces the upper side of the longer section.
  • a second connecting frame 2 is connected and fixed below the pressing wheel bracket 7 , the second connecting frame 2 is fixed at the position of the pressing wheel bracket close to the main body bracket, and a trenching shovel 3 is installed under the second connecting frame 2 through bolts.
  • the seeding mechanism includes a paper tape winding wheel 11, a soil entry guide tube 5, a soil entry guide wheel 4 and a soil cover wheel 6.
  • the paper tape winding wheel 11 is a cylindrical body with grooves at the circumference arranged laterally.
  • the central axis of the paper tape winding wheel 11 There is a first support shaft penetrating through the paper tape winding wheel 11, both ends of the first support shaft are fixedly connected to one end of the second support plate, and the opposite end of the second support plate is fixed to the main body bracket.
  • the soil entry guide pipe 5 is arranged behind the relative stubble clearing mechanism of the second connecting frame 2, and is connected and fixed with the pressing wheel bracket 7 and the second connecting pipe 2 respectively through the brackets fixed up and down through the soil entry guide pipe 5, and the soil entry guide wheel 4 is installed in the soil Immediately below the guide pipe 5, a soil entry guide wheel bearing is provided at the central axis of the soil entry guide wheel 4, and is connected and fixed with the second connecting frame 2 through the soil entry guide wheel bearing.
  • the rear of the relative stubble clearing mechanism of the entry guide wheel 4 is provided with two completely consistent and symmetrically arranged soil-covering wheels 6.
  • the central axis of the soil-covering wheel 6 is provided with a soil-covering wheel bearing, which is connected with the second connecting frame 2 on both sides of the soil-covering wheel bearing. The connection is fixed, and the two soil-covering wheels 6 are fixed in an "eight" shape.
  • a second support shaft runs through the center of the pressing wheel 8, two sides of the second support shaft are respectively fixed on the same end of the two third support plates, and the opposite ends of the two third support plates are fixed on the vertically arranged lifting blocks
  • the lifting block is a hollow cuboid
  • the lifting block is sleeved on the vertical part of the pressing wheel bracket 7, and is fixed with the pressing wheel bracket 7 by the bolt 9 arranged in the middle of the lifting block, and the lifting block is realized by tightening and loosening the bolt 9.
  • the displacement of the relative pressing wheel bracket drives the lifting and lowering of the pressing wheel 8 to effectively control the degree of soil repression.
  • the top of the lifting block is fixed with an adjusting handle 10, which is convenient for moving the lifting block as a whole.
  • the device is installed as a whole according to the above structure, and the seed belt is wound around the soil guide wheel 4. Every four devices are connected to the tractor through a three-point suspension device, and the tractor is used to drive the device to travel.
  • the rear output shaft of the tractor The coupling is connected with the power input shaft of the reduction box, the power input shaft drives the gear box in the reduction box to drive to the stubble-cleaning knife shaft, and the rotation of the knife shaft drives the stubble-cleaning knife to work.
  • the seed belt is manually introduced into the sowing area and pressed with soil, and then the tractor drives the device to move forward, the trenching shovel 3 opens the seedling belt for the seed belt to be embedded in the front, and the paper belt winding wheel 11 and the paper belt.
  • the soil covering wheel 6 covers the soil on the seeds after the paper tape is buried, and uses the pressing wheel 8 to suppress the soil above the paper tape.
  • the bolt 9 and the adjusting handle 10 adjust the height of the pressing wheel 8 to meet the required pressing effect.

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Sowing (AREA)

Abstract

一种苗带清茬及纸带播种一体作业装置，包括主体支架，主体支架自前至后连接有清茬机构与纸带播种模块，纸带播种模块自前至后依次为开沟铲（3）、播种机构和镇压轮（8），清茬机构包括第一连接架（12），第一连接架（12）的上端与主体支架固定、下端连接第一支撑板（13），第一支撑板（13）处设有刀轴，刀轴外侧焊接固定有一个刀库，刀库处连接固定有四个均匀分布的清茬刀（1）。

Description

苗带清茬及纸带播种一体作业装置 技术领域
本发明涉及苗带清茬播种技术领域，具体涉及一种苗带清茬及纸带播种一体作业装置。
背景技术
目前，北方旱区全面推广保护性耕作模式，以免少耕配合秸秆还田实现，前者可以减少土壤扰动保护耕层及减少农业生产过程污染排放，后者可以改善土壤结构培肥能力、提高农田蓄水保墒能力。但市面上的免耕播种机存在易受残茬、秸秆影响严重甚至堵塞机器，导致播深不一甚至种子不能正常入土悬浮在表面或秸秆上形成晾籽，并且碎杆与土壤混杂造成开沟深度不一致，播深不一致，严重影响播种效果，且目前市场上尚无专门播种纸带的播种装置。综上所述，现有技术中对于秸秆处理容易堵塞播种机械影响播种质量的问题，及免耕播种过程中的晾籽、漏播、重播、株距播深不一致的问题，尚缺乏有效的解决方案。
发明内容
本发明的目的是为克服上述现有技术的不足，提供一种苗带清茬及纸带播种一体作业装置，兼具苗带清茬及纸带播种的功能，结构简单、设计合理，各行清理残茬后形成一条地表无秸秆的苗带，开沟器开沟后将包有作物种子的纸带埋入其中并覆土镇压，提高播种作业质量与效率、节约人力物力。
为实现上述目的，本发明采用下述技术方案：
苗带清茬及纸带播种一体作业装置，包括主体支架，所述主体支架自前至后 连接有清茬机构与纸带播种模块，所述纸带播种模块自前至后依次为开沟铲、播种机构和镇压轮，所述清茬机构包括第一连接架，所述第一连接架的上端与主体支架固定、下端连接第一支撑板，第一支撑板的下端设有轴承，轴承通过两端的法兰盘与第一支撑板连接，轴承外侧嵌套有刀轴，刀轴外侧焊接固定有一个刀库，刀库处连接固定有四个均匀分布的清茬刀。
所述清茬刀为曲面L型，其突出的一侧为刀刃，便于在旋转时对残余的苗茬进行清除。
所述主体支架下方固定连接有镇压轮支架，镇压轮支架为L型，较长一段横向设置、较短一段垂直于较长一段且朝向较长一段的上侧。
所述镇压轮支架下方连接固定有第二连接架，第二连接架固定在镇压轮支架靠近主体支架处，第二连接架下方固定安装有开沟铲，在装置整体向前推进时在地面开出供种子埋入的苗带。
所述播种机构包括纸带缠绕轮、入土引导管、入土引导轮和覆土轮，纸带缠绕轮为横向设置的圆周处设有凹槽的圆柱体，纸带缠绕轮的中心轴处设有贯穿纸带缠绕轮的第一支撑轴，第一支撑轴的两端固定连接在两块第二支撑板的一端，第二支撑板相对的另一端均固定在主体支架上。
所述入土引导管设置在第二连接架的相对清茬机构的后方，通过入土引导管上下固定的支架分别与镇压轮支架和第二连接支架固定连接，用于对种带的引导。
所述入土引导轮安装在入土引导管的正下方，入土引导轮中心设有入土引导轮轴承、并通过入土引导轮轴承与第二连接架连接。
所述入土引导轮相对清茬机构的后方设有两个完全一致、对称设置的覆土 轮，覆土轮安装在入土引导轮的后方且覆土轮中心设有覆土轮轴承、并在覆土轮轴承两侧与第二连接架连接，两个覆土轮呈“八”字形固定，在种带埋入后将土壤盖在种子上。
所述镇压轮中心贯穿有第二支撑轴，第二支撑轴的两侧分别固定在两块第三支撑板的同一端，两块第三支撑板相对的另一端均固定在竖向设置的升降块上，升降块为空心的长方体，升降块套在镇压轮支架的竖向部分、并通过升降块中间设置的螺栓与镇压轮支架固定，通过螺栓的拧紧和拧松，实现升降块相对镇压轮支架的位移，从而带动镇压轮的升降，有效控制对土壤的镇压程度。
所述升降块处设有调节手柄，调节手柄固定在升降块的顶端，便于对升降块整体进行移动。
本发明利用L型清茬刀的刀刃把残茬切断，残茬在清茬刀之间随着刀轴的高速旋转被打碎抛出，进而清理出播种需要的带状播种区，为播种提供理想的种床，达到保护性耕作的目的；通过播种装置把包有种子的纸带埋入开沟铲开好的槽内，可解决普通排种器漏播、重播、种子弹跳等问题，提高播种质量。
附图说明
图1是装置的结构示意图；
图2是装置的俯视图；
其中，1.清茬刀；2.第二连接架；3.开沟铲；4.入土引导轮；5.入土引导管；6.覆土轮；7.镇压轮支架；8.镇压轮；9.螺栓；10.调节手柄；11.纸带缠绕轮；12.第一连接架；13.第一支撑板。
具体实施方式
下面结合附图和实施例对本发明进一步说明。
本说明书所附图式所绘示的结构、比例、大小等，均仅用以配合说明书所揭示的内容，以供熟悉此技术的人士了解与阅读，并非用以限定本发明可实施的限定条件，故不具技术上的实质意义，任何结构的修饰、比例关系的改变或大小的调整，在不影响本发明所能产生的功效及所能达成的目的下，均应仍落在本发明所揭示的技术内容涵盖的范围内。同时，本说明书中所引用的如“上”、“下”、“左”、“右”、“中间”及“一”等的用语，亦仅为便于叙述的明了，而非用以限定本发明可实施的范围，其相对关系的改变或调整，在无实质变更技术内容下，当亦视为本发明可实施的范畴。
如图1-图2所示，苗带清茬及纸带播种一体作业装置，包括主体支架，主体支架自前至后连接有清茬机构与纸带播种模块，纸带播种模块包括开沟铲3、播种机构和镇压轮7，清茬机构包括固定在主体支架前端的第一连接支架12，第一连接支架12的上端与主体支架通过螺栓固定、下端连接第一支撑板，第一支撑板的下端设有轴承，轴承通过两端固定的法兰盘与第一支撑板用螺栓连接固定，轴承外侧嵌套有刀轴，刀轴外侧焊接固定有刀库，刀库通过螺栓连接固定有四个均匀分布的清茬刀1，清茬刀1为曲面L型，其突出一侧为刀刃。
主体支架下方固定连接有镇压轮支架7，镇压轮支架7为L型，较长一段横向设置、较短一段垂直于较长一段且朝向较长一段的上侧。镇压轮支架7的下方连接固定有第二连接架2，第二连接架2固定在镇压轮支架靠近主体支架处，第二连接架2下方通过螺栓安装有开沟铲3。播种机构包括纸带缠绕轮11、入土引导管5、入土引导轮4和覆土轮6，纸带缠绕轮11为横向设置的圆周处设有凹槽的圆柱体，纸带缠绕轮11的中心轴处设有贯穿纸带缠绕轮11的第一支撑轴，第一支撑轴的两端固定连接在第二支撑板的一端，第二支撑板相对的另一端固定在 主体支架上。入土引导管5设置在第二连接架2的相对清茬机构的后方，通过入土引导管5上下固定的支架分别与镇压轮支架7和第二连接管2连接固定，入土引导轮4安装在入土引导管5的正下方，入土引导轮4中心轴处设有入土引导轮轴承、并通过入土引导轮轴承与第二连接架2连接固定。入土引导轮4的相对清茬机构的后方设有两个完全一致、对称设置的覆土轮6，覆土轮6中心轴处设有覆土轮轴承、并在覆土轮轴承两侧与第二连接架2连接固定，两个覆土轮6呈“八”字形固定。镇压轮8中心贯穿有第二支撑轴，第二支撑轴的两侧分别固定在两块第三支撑板的同一端，两块第三支撑板相对的另一端均固定在竖向设置的升降块上，升降块为空心的长方体，升降块套在镇压轮支架7的竖向部分、并通过升降块中间设置的螺栓9与镇压轮支架7固定，通过螺栓9的拧紧和拧松，实现升降块相对镇压轮支架的位移，从而带动镇压轮8的升降，有效控制对土壤的镇压程度。升降块顶端固定有调节手柄10，便于对升降块整体进行移动。
具体使用时，将装置整体按照上述结构安装好，并将种带缠绕至入土引导轮4处，每四个装置通过三点悬挂装置与拖拉机连接，并利用拖拉机带动装置行进，拖拉机的后输出轴通过联轴器与减速箱动力输入轴连接，动力输入轴带动减速箱内齿轮箱传动至清茬刀刀轴，刀轴旋转带动清茬刀工作。开始作业时，由人工将种带引入播种区，用土压住，然后拖拉机带动装置向前行进，开沟铲3在前方开出供种带埋入的苗带，纸带缠绕轮11与纸带一起转动，将纸带沿行进路线埋入，覆土轮6在纸带埋入后将土壤盖在种子上，并利用镇压轮8对纸带上方的土壤进行镇压，根据播种的种子种类不同，利用螺栓9和调节手柄10调节镇压轮8的高度，以满足所需镇压的效果。
上述虽然结合附图对本发明的具体实施方式进行了描述，但并非对本发明保 护范围的限制，所属领域技术人员应该明白，在本发明的技术方案的基础上，本领域技术人员不需要付出创造性劳动即可做出的各种修改或变形仍在本发明的保护范围以内。

Claims (10)

  1. 一种苗带清茬及纸带播种一体作业装置，包括主体支架，其特征是，所述主体支架自前至后连接有清茬机构与纸带播种模块，所述纸带播种模块自前至后依次为开沟铲、播种机构和镇压轮，所述清茬机构包括第一连接架，所述第一连接架的上端与主体支架固定、下端连接第一支撑板，第一支撑板的下端设有轴承，轴承通过两端的法兰盘与第一支撑板连接，轴承外侧嵌套有刀轴，刀轴外侧焊接固定有一个刀库，刀库处连接固定有四个均匀分布的清茬刀。
  2. 如权利要求1所述的苗带清茬及纸带播种一体作业装置，其特征是，所述清茬刀为曲面L型，其突出的一侧为刀刃。
  3. 如权利要求1所述的苗带清茬及纸带播种一体作业装置，其特征是，所述主体支架下方固定连接有镇压轮支架，镇压轮支架为L型，较长一段横向设置、较短一段垂直于较长一段且朝向较长一段的上侧。
  4. 如权利要求1所述的苗带清茬及纸带播种一体作业装置，其特征是，所述镇压轮支架下方连接固定有第二连接架，第二连接架固定在镇压轮支架靠近主体支架处，第二连接架下方固定安装有开沟铲。
  5. 如权利要求1所述的苗带清茬及纸带播种一体作业装置，其特征是，所述播种机构包括纸带缠绕轮、入土引导管、入土引导轮和覆土轮，纸带缠绕轮为横向设置的圆周处设有凹槽的圆柱体，纸带缠绕轮的中心轴处设有贯穿纸带缠绕轮的第一支撑轴，第一支撑轴的两端固定连接在两块第二支撑板的一端，第二支撑板相对的另一端均固定在主体支架上。
  6. 如权利要求5所述的苗带清茬及纸带播种一体作业装置，其特征是，所述入土引导管设置在第二连接架的相对清茬机构的后方，通过入土引导管上下固定 的支架分别与镇压轮支架和第二连接支架固定连接。
  7. 如权利要求5所述的苗带清茬及纸带播种一体作业装置，其特征是，所述入土引导轮安装在入土引导管的正下方，入土引导轮中心设有入土引导轮轴承、并通过入土引导轮轴承与第二连接架连接。
  8. 如权利要求5所述的苗带清茬及纸带播种一体作业装置，其特征是，所述入土引导轮相对清茬机构的后方设有两个完全一致、对称设置的覆土轮，覆土轮安装在入土引导轮的后方且覆土轮中心设有覆土轮轴承、并在覆土轮轴承两侧与第二连接架连接，两个覆土轮呈“八”字形固定。
  9. 如权利要求1所述的苗带清茬及纸带播种一体作业装置，其特征是，所述镇压轮中心贯穿有第二支撑轴，第二支撑轴的两侧分别固定在两块第三支撑板的同一端，两块第三支撑板相对的另一端均固定在竖向设置的升降块上，升降块为空心的长方体，升降块套在镇压轮支架的竖向部分、并通过升降块中间设置的螺栓与镇压轮支架固定。
  10. 如权利要求9所述的苗带清茬及纸带播种一体作业装置，其特征是，所述升降块处设有调节手柄，调节手柄固定在升降块的顶端。
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