WO2011026419A1 - 智能割草机的割草高度自动调节结构 - Google Patents

智能割草机的割草高度自动调节结构 Download PDF

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Publication number
WO2011026419A1
WO2011026419A1 PCT/CN2010/076486 CN2010076486W WO2011026419A1 WO 2011026419 A1 WO2011026419 A1 WO 2011026419A1 CN 2010076486 W CN2010076486 W CN 2010076486W WO 2011026419 A1 WO2011026419 A1 WO 2011026419A1
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WO
WIPO (PCT)
Prior art keywords
gear
motor
lawn mower
stage
blade
Prior art date
Application number
PCT/CN2010/076486
Other languages
English (en)
French (fr)
Inventor
钱兴桂
Original Assignee
嘉兴亚特园林机械研究所
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
Priority claimed from CN2009201961034U external-priority patent/CN201491509U/zh
Priority claimed from CN2009201983669U external-priority patent/CN201515608U/zh
Application filed by 嘉兴亚特园林机械研究所 filed Critical 嘉兴亚特园林机械研究所
Publication of WO2011026419A1 publication Critical patent/WO2011026419A1/zh

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/01Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/74Cutting-height adjustment

Definitions

  • the utility model relates to an automatic height adjustment structure of a mowing height of an intelligent lawn mower. Background technique
  • the purpose of the utility model is to provide an automatic height adjustment structure for a lawn mower of an intelligent lawn mower, which can effectively solve the problem that the existing lawn mower's mowing height adjustment system requires tools and is cumbersome to operate.
  • the mowing height automatic adjustment structure of the intelligent lawn mower includes a base and a shield, and the blade motor with the blade is mounted on the shield, and the feature is:
  • the cover is axially slidably coupled to the base along the blade motor, and the cover is further provided with a connecting post disposed along the axial direction of the blade motor, the connecting post is provided with an internally threaded hole, and the adjusting bolt is rotatably connected to the base
  • the front end of the adjusting bolt is screwed to the connecting post, and the rear end of the adjusting bolt is connected with the operating mechanism.
  • the operating mechanism includes a starting motor disposed on the base and a control assembly for controlling the working of the starting motor, and the starting motor passes the gear transmission mechanism. The assembly is connected to the rear end of the adjustment bolt.
  • the gear transmission mechanism includes a driven gear provided at a rear end of the adjusting bolt and a driving gear provided on the output shaft of the starting motor in conjunction with the driven gear.
  • the operating mechanism may also be a knob provided for adjusting the rear end of the adjusting bolt.
  • the PC board and the operation panel connected to the PC board as long as the user presses the control button on the operation panel, the PC board receives the command, starts the motor rotation, starts the motor start, and causes the driving gear to drive the driven gear on the top of the adjusting bolt to rotate. , thereby driving the adjustment bolt to rotate.
  • the driving gear and the driven gear select various types of gear matching according to the actual installation angle, such as the matching of bevel gears and cylindrical gears.
  • the base is provided with a partition layer, wherein the partition layer is provided with a through hole corresponding to the adjusting bolt, the adjusting bolt passes through the through hole and is connected with the internal thread, the thread root of the adjusting bolt is sleeved with a boss, and the base plate is further provided with a pressing plate
  • the pressure plate limits the boss to the partition layer, realizes the adjustment of the adjustment bolt on the base, adopts the thread to adjust the height, and is easy to adjust and can realize a smooth stepless height change.
  • the connecting column is arranged at the center of the shield, so that the shield can be evenly stressed during the lifting movement, and the level of the shield can be smoothly raised and lowered to avoid tilting of the blade and ensure the normal operation of the lawn mower.
  • the base is provided with a guiding hole
  • the guard is provided with a guiding post corresponding to the guiding hole
  • the guiding column on the shield is slidably connected in the guiding hole of the base, and the guiding hole can play a guiding role while avoiding the rotation of the shield .
  • the guiding hole and the guiding column are distributed along the axial section of the adjusting bolt, and the guiding action is uniform and symmetrical, so that the height adjustment process is performed normally, and the failure rate is small.
  • the gear transmission mechanism further includes a speed reduction mechanism disposed between the starter motor and the driving gear, the speed reduction mechanism includes a speed reduction box, and the planetary gear transmission assembly of the plurality of stages is sequentially disposed in the speed reduction box,
  • the gear transmission mechanism is a multi-stage gear transmission assembly, and each gear transmission assembly is formed by internal engagement of the sun gear, the planetary gear and the inner ring gear.
  • the utility model adopts the above technical solution, can easily realize the adjustment of the mowing height of the lawn mower, and the motor gear drives the driven gear on the adjusting bolt to rotate, thereby driving the adjusting bolt to rotate, adjusting the bolt to drive the shield and the overall relative of the blade.
  • the base is lifted and moved, and the adjustment effect is good.
  • the adjustment mechanism has a simple structure and is easy to operate, and does not affect the spacing between the blade and the knife bowl, and meets the installation requirements.
  • Fig. 1 is a schematic structural view (cone gear) when the mowing height is low in the automatic mowing height adjustment structure of the intelligent lawn mower of the present invention
  • Fig. 2 is a schematic structural view (cone gear) when the mowing height is high in the mowing height automatic adjustment structure of the intelligent lawn mower of the present invention.
  • Fig. 3 is a schematic structural view (column gear) when the mowing height is low in the automatic mowing height adjustment structure of the intelligent lawn mower of the present invention
  • FIG. 4 is another embodiment of the mowing height automatic adjusting structure of the intelligent lawn mower of the present invention
  • FIG. 5 is a schematic structural view of the blade mounting structure of the utility model
  • Figure 6 is a state diagram of the blade of the utility model after installation
  • Figure 7 is a schematic view of the structure of the rotating shaft
  • Figure 8 is a cross-sectional view of the motor bush sleeve and the blade connecting portion of the present invention.
  • Figure 9 is a cross-sectional view showing the horizontal arrangement of the threaded hole 1 and the threaded hole in the present invention.
  • Figure 10 is a plan view of the blade connecting portion;
  • Figure 11 is a schematic structural view of a secondary gear transmission mechanism of the present invention.
  • Figure 12 is a schematic view showing the structure of the three-stage gear transmission mechanism of the present invention. detailed description
  • the mowing height automatic adjustment structure of the intelligent lawn mower of the present invention comprises a base 1 and a shield 2, and a blade motor 4 with a blade 3 is mounted on the shield, the shield 2
  • the shank 1 is axially slidably coupled to the base 1
  • the shroud 2 is further provided with a connecting post 21 disposed along the axial direction of the blade motor.
  • the connecting post 21 is provided with an internally threaded hole, and the base 1 is rotatably connected thereto.
  • the operating mechanism includes a starting motor 8 disposed on the base and a control assembly for controlling the operation of the starting motor.
  • the starting motor 8 is coupled to the rear end of the adjusting bolt through a gear transmission mechanism, and the gear transmission mechanism includes a driven gear disposed at a rear end of the adjusting bolt 6 and a driving gear 7 disposed on the output shaft of the starting motor and interlocking with the driven gear.
  • the base 1 is provided with a partition 11 , and the through hole 11 is provided with a through hole corresponding to the adjusting bolt 5 .
  • the base 1 is further provided with a pressure plate 13 which limits the boss 12 to the partition 11, the adjusting bolt 5 is restrained in the horizontal and vertical directions, and the adjusting bolt 5 is sequentially rotated through the pressing plate 13 and the partition 11. Connect the internal thread.
  • the base 1 is provided with a guiding hole 14
  • the shroud 2 is provided with a guiding post 22 corresponding to the guiding hole 14 , which can guide the lifting and lowering of the shroud 2 and can prevent the shroud 2 from rotating, the guiding hole 14 and The guide post 22 is distributed along the axial section of the adjusting bolt 5.
  • the PC board 9 receives an instruction to start the rotation of the motor 8, and the motor gear 7 drives the bevel gear or the spur gear 6 at the top of the adjustment bolt, thereby driving the adjustment bolt 5 to rotate. Since the pressure plate 13 is pressed against the boss 12 to restrict the upward and downward movement of the adjusting bolt 5, the shield 2 and the blade 3 as a whole are simultaneously raised or lowered.
  • the connecting post 21 provided at the center of the shroud 2 can also be separated from the shroud 2, and then the shroud 2 and the connecting post 21 can be joined together by screws.
  • the blade motor is long, the channel for sliding the blade motor is correspondingly arranged on the base. As shown in Fig.
  • the driving gear and the driven gear can also be interlocked by using a cylindrical gear.
  • the transmission mechanism shown in the utility model can also adopt a multi-stage gear transmission and the like.
  • the operating mechanism is a knob 15 provided for adjusting the rear end of the adjusting bolt 5, as shown in FIG.
  • the motor shaft sleeve 40 is tightly mounted on the shaft 40 of the blade motor 4, and the motor sleeve 43 is provided with a threaded hole 42.
  • At least one longitudinal positioning strip 41 is disposed on the outer arc surface of the motor sleeve, the blade 3 includes a blade portion and a connecting portion 31, and one end of the connecting portion 31 is provided with a sleeve hole 413 for socketing the motor sleeve.
  • the connecting portion 31 of the blade 41 is sleeved on the motor bushing 43 and screwed into the threaded hole 42 of the motor bushing 43 by screws 16 for fixed locking.
  • one end of the motor bushing 43 is provided with a threaded hole 44 for mounting the rotating shaft 40
  • the threaded hole 42 is disposed at the other end of the motor bushing 43 .
  • Threaded hole 2 the rotating shaft 40 is provided with a thread adapted to the shaft hole 44, and the rotating shaft is screwed into the shaft hole 44 in the same direction as the motor rotating direction.
  • a circular arc surface is provided on the arcuate surface of the rotating shaft 40.
  • the shaft hole of the motor bushing 43 is provided with a corresponding connecting recess 401.
  • the convex portion 45 is connected.
  • Such a structural arrangement also ensures the connection of the rotating shaft and the motor bushing and can work normally.
  • the threaded hole 42 can also be transversely disposed on the motor bushing 43.
  • the corresponding threaded hole 412 is laterally opened on the side wall surface of the connecting portion, and the horizontally disposed screw holes are also effective.
  • the fixing method in the specific manufacturing process, determines the processing method of the threaded hole according to the wall thickness of the blade connecting portion and the effective length.
  • a motor bushing 43 with a threaded hole 42 is mounted on the mowing motor shaft 40 of the intelligent mower.
  • the positioning bar 41 on the motor bushing 43 cooperates with the matching positioning groove 411 in the connecting portion 31 of the blade 3.
  • the screw 16 or a split pin is then passed through the threaded bore 42 and the threaded bore 412.
  • the gear transmission mechanism of the present invention further includes a speed reduction mechanism 01 disposed between the starter motor 8 and the driving gear 7, the speed reduction mechanism includes a reduction gear box 001, and the speed reduction box 001 is provided with multiple stages.
  • the gear transmission assembly is sequentially connected, and each gear transmission assembly is formed by inner gear of the sun gear, the planetary gear and the inner ring gear.
  • the gear transmission mechanism described in the example is a two-stage gear transmission mechanism, and the package
  • the first stage sun gear 02 connected to the output shaft of the starter motor 8 is provided, and the inner ring gear 001 corresponding to the outer periphery of the first stage sun gear 02 is provided with a first inner ring gear 021, and the first inner sun gear 02 and the first inner ring gear 021
  • There are a plurality of first-order planetary gears 022, and a first-stage planetary gear 022 is provided with a linkage shaft 06 connected to the first-stage planetary carrier 023; the front-end surface of the -stage planetary carrier 023 is provided with a secondary sun gear 03, a secondary sun gear 03
  • the outer ring gear box 001 has a second inner ring gear 031 on the inner wall, and two second-stage planetary gears 032 between the second sun gear 03 and the second inner ring gear 031, and the second planetary gears 032 are arranged.
  • the linkage shaft 06 is connected to the secondary planetary carrier
  • another embodiment of the speed reduction mechanism of the present embodiment is substantially the same as the foregoing embodiment, except that the gear transmission mechanism in the reduction gearbox 001 is a three-stage gear transmission mechanism, that is, in the secondary gear transmission.
  • the third level is added.
  • the specific structure is as follows: On the front end surface of the secondary planetary carrier 033, there is a third-stage sun gear 04 with a secondary planetary carrier 033-body structure, and the third-stage sun gear 04 corresponds to the periphery. There are three inner ring gears 041 on the inner wall of the gearbox 001.
  • the gear 042 is provided with a linkage shaft 06 connected to the three-stage planetary carrier 043, and the driving gear 7 is interlocked with the three-stage planetary carrier 043, and the rest of the structure is the same.
  • the speed reduction mechanism of the utility model adopts a planetary gear shifting mechanism, the planetary gear transmission has a power splitting, and the sun gears constitute a coaxial transmission, and the internal meshing is reasonably applied between the sun gears, the planetary gears and the inner ring gear, so that the intelligent mowing
  • the machine drive wheel speed reduction mechanism has the advantages of small size, light weight, compact structure, coaxial input and output, and low cost; a plurality of planetary wheels are evenly distributed around the sun gear to share the load structure, and the bearing capacity is large and the transmission efficiency is high. The ability to move smoothly, withstand shock and vibration is strong.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvester Elements (AREA)

Description

智能割草机的割草高度自动调节结构
技术领域
本实用新型涉及智能割草机的割草高度自动调节结构。 背景技术
为了满足用户对割草高度不同的要求, 大部分割草机都设有割草高度调节 机构。 现在市场上智能割草机的高度调节基本上都是采用手动旋转旋钮, 靠人 手调节, 有时候还要需要借助工具, 操作繁琐。 实用新型内容
本实用新型的目的在于提供一种智能割草机的割草高度自动调节结构, 可 以有效解决现有割草机的割草高度调节系统调节时需要借助工具, 操作繁琐的 问题。
为了解决上述技术问题, 本实用新型采用如下技术方案: 智能割草机的割 草高度自动调节结构, 包括底座及护罩, 护罩上安装有带刀片的刀片电机, 其 特征在于: 所述护罩沿刀片电机轴向滑动连接在底座上, 护罩上还设有沿刀片 电机轴向设置的连接柱, 所述连接柱中设有内螺紋孔, 所述底座上转动连接有 调节螺栓, 所述调节螺栓前端与连接柱对应旋接, 所述调节螺栓后端与操作机 构连接, 所述操作机构包括设在底座上的启动电机及控制启动电机工作的控制 总成, 启动电机通过齿轮传动机构总成与调节螺栓后端连接。
所述齿轮传动机构包括设在调节螺栓后端的从动齿轮以及设在启动电机输 出轴上与所述从动齿轮连动的主动齿轮。
所述操作机构也可以为设在调节螺栓后端调节用的旋钮。 的 PC板及与 PC板连接的操作面板, 人只要在操作面板上按下控制按扭, PC 板接到指令, 启动电机转动, 启动电机启动, 使主动齿轮带动调节螺栓顶部的 从动齿轮转动, 从而带动调节螺栓旋转。 主动齿轮和从动齿轮根据实际安装角 度选择各类齿轮匹配, 如锥齿轮、 圆柱齿轮等的配合。
进一步, 底座上设有隔层, 隔层中设有与调节螺栓对应的通孔, 调节螺栓 穿过通孔后连接内螺紋, 调节螺栓的螺紋根部套接有凸台, 底座上还设有压板, 压板将凸台限位在隔层上, 实现调节螺栓在底座上的转接, 采用螺紋来调节高 度, 调节简便且可以实现平稳的无级的高度变化。
优选的, 连接柱设在护罩中心, 可以使护罩在升降运动过程中受力均匀, 实现护罩的水平平稳升降, 避免刀片出现倾斜, 保证割草机的正常工作。
进一步, 底座上设有导向孔, 护罩上设有与导向孔对应的导向柱, 护罩上 的导向柱滑动连接在底座的导向孔中, 导向孔可以起导向作用, 同时避免护罩 的转动。
优选的, 导向孔和导向柱沿调节螺栓的轴截面分布, 导向作用均匀对称, 保证高度调节过程正常进行, 故障率小。
改进的, 所述齿轮传动机构还包括设在所述启动电机与主动齿轮间的减速 机构, 所述减速机构包括减速箱, 减速箱内设有多级依次联动的行星轮传动组 件, 所述的齿轮传动机构为多级依次联动的齿轮传动组件, 每级齿轮传动组件 由太阳轮、 行星齿轮及内齿圈采用内啮合方式构成。
本实用新型由于采用了上述技术方案, 可以简便地实现割草机割草高度的 调节, 电机齿轮带动调节螺栓上的从动齿轮旋转, 从而带动调节螺栓旋转, 调 节螺栓带动护罩和刀片整体相对底座进行升降运动, 调节效果好, 同时该调节 机构结构简单, 操作简便, 且不会影响刀片和刀碗的间距, 满足安装要求。 附图说明
下面结合附图对本实用新型作进一步说明:
图 1 为本实用新型智能割草机的割草高度自动调节结构中割草高度为低位 时的结构示意图 (圆锥齿轮);
图 2 为本实用新型智能割草机的割草高度自动调节结构中割草高度为高位 时的结构示意图 (圆锥齿轮)。
图 3 为本实用新型智能割草机的割草高度自动调节结构中割草高度为低位 时的结构示意图 (圆柱齿轮);
图 4为本实用新型智能割草机的割草高度自动调节结构的另一实施例; 图 5是本实用新型刀片安装结构结构示意图;
图 6是本实用新型刀片安装后状态图;
图 7是转轴结构示意图;
图 8是本实用新型电机轴套与刀片连接部配合后的剖视图;
图 9是本实用新型中螺紋孔一和螺紋孔三横向设置的结构剖视图; 图 10为刀片连接部的俯视图;
图 11为本实用新型二级齿轮传动机构结构示意图;
图 12为本实用新型三级齿轮传动机构结构示意图。 具体实施方式
如图 1和图 2所示为本实用新型智能割草机的割草高度自动调节结构, 包 括底座 1及护罩 2, 护罩上安装有带刀片 3的刀片电机 4, 所述护罩 2沿刀片电 机轴向滑动连接在底座 1上,护罩 2上还设有沿刀片电机轴向设置的连接柱 21, 所述连接柱 21中设有内螺紋孔, 所述底座 1上转动连接有调节螺栓 5, 所述调 节螺栓 5前端与连接柱 21对应旋接, 所述调节螺栓后端与操作机构连接, 所述 操作机构包括设在底座上的启动电机 8及控制启动电机工作的控制总成, 启动 电机 8通过齿轮传动机构与调节螺栓后端连接, 所述齿轮传动机构包括设在调 节螺栓后端的从动齿轮 6 以及设在启动电机输出轴上与所述从动齿轮连动的主 动齿轮 7。所述底座 1上设有隔层 11,隔层 11中设有与调节螺栓 5对应的通孔, 调节螺栓 5穿过通孔后连接内螺紋, 调节螺栓 5的螺紋根部设有凸台 12, 底座 1上与还设有压板 13, 压板 13将凸台 12限位在隔层 11上, 调节螺栓 5在水平 和竖直方向被限位, 调节螺栓 5依次穿过压板 13和隔层 11转动连接内螺紋。 底座 1上设有导向孔 14, 护罩 2上设有与导向孔 14对应的导向柱 22, 在护罩 2 的升降过程中可以起导向作用, 并可以防止护罩 2旋转, 导向孔 14和导向柱 22 沿调节螺栓 5的轴截面分布。 人在操作面板 10上按下控制按扭, PC板 9接到 指令,启动电机 8转动,电机齿轮 7带动调节螺栓顶部的锥齿轮或者圆柱齿轮 6, 从而带动调节螺栓 5旋转。 由于压板 13抵住凸台 12而限制调节螺栓 5上下升 降运动, 护罩 2和刀片 3作为一个整体同时上升或下降。 设在护罩 2中心的连 接柱 21,也可以与护罩 2分离开,然后用螺钉将护罩 2和连接柱 21连接在一起。 本实用新型中如刀片电机较长, 在底座上则需对应设置供刀片电机滑动的通道。 如图 3, 主动齿轮和从动齿轮也可以采用圆柱齿轮实现连动。本实用新型中所示 传动机构也可以采用多级齿轮传动等结构。 所述操作机构为设在调节螺栓 5 后 端调节用的旋钮 15, 如图 4所示。 如图 5、 图 6、 图 8和图 10所示, 本实用新型中所述刀片电机 4转轴 40上 紧配安装有电机轴套 43, 所述电机轴套 43中设有螺紋孔一 42, 电机轴套的外 圆弧表面上设有至少一根纵向定位条 41, 所述刀片 3包括刃部和连接部 31, 连 接部 31的一端设有用于套接电机轴套的轴套孔 413, 所述轴套孔中设有与定位 条 41相适配的定位凹槽 411, 所述刀片的连接部 31套接在电机轴套 43上并通 过螺丝 16拧入电机轴套 43上的螺紋孔一 42中加以固定锁紧。 如图 8所示, 也可以是, 所述电机轴套 43的一端开有安装转轴 40的螺紋 孔 44,所述螺紋孔一 42设置在电机轴套 43的另一端,所述轴孔 44为螺紋孔二, 所述转轴 40上设有螺紋与轴孔 44相适配, 转轴旋入轴孔 44的方向与电机旋转 方向相同。 在本实用新型中, 如图 5、 7和图 9所示, 转轴 40—端的圆弧面上设有一 连接凹部 401, 所述电机轴套 43的轴孔中设有与连接凹部 401相对应的连接凸 部 45。 这样的结构设置也能保证转轴和电机轴套的连接并能正常工作。 如图 9 所示, 螺紋孔一 42也可以横向穿设在电机轴套 43上, 对应的所述螺紋孔三 412 横向开设在连接部的侧壁面上, 横向设置各个螺紋孔也是一种较为有效的固定 方式, 在具体制造过程中, 依照刀片连接部的壁厚以及有效长度来决定螺紋孔 的加工方式。
智能割草机内割草电机转轴 40上先安装有一个带螺紋孔一 42的电机轴套 43, 电机轴套 43上的定位条 41配合刀片 3连接部 31中适配的定位凹槽 411, 然后 将螺丝 16或一个开口销穿过螺紋孔一 42和螺紋孔三 412。更换刀片 3时, 只需 要将螺丝 16或开口销移开, 拿下刀片 3更换, 拆卸方便。
如图 11所示, 本实用新型所述齿轮传动机构还包括设在所述启动电机 8与主 动齿轮 7间的减速机构 01, 所述减速机构包括减速箱 001, 减速箱 001 内设有 多级依次联动的齿轮传动组件, 每级齿轮传动组件由太阳轮、 行星齿轮及内齿 圈采用内啮合方式构成, 本实例所述的齿轮传动机构为二级齿轮传动机构, 包 括与启动电机 8输出轴连接的一级太阳轮 02,一级太阳轮 02外围对应的减速箱 001 内壁上设有一级内齿圈 021, 在一级太阳轮 02与一级内齿圈 021之间设有 若干个一级行星齿轮 022, 一级行星齿轮 022上设置联动轴 06连接一级行星轮 架 023 ; —级行星轮架 023的前端面设有二级太阳轮 03, 二级太阳轮 03外围对 应的减速箱 001内壁上设有二级内齿圈 031,在二级太阳轮 03与二级内齿圈 031 之间设有若干个二级行星齿轮 032, 二级行星齿轮 032上设置联动轴 06连接二 级行星轮架 033, 所述主动齿轮 7与二级行星轮架 033连动。
如图 12所示, 为本实施例减速机构的另一实施例, 与前述实施例大致相同, 不同的是在减速箱 001 内的齿轮传动机构为三级齿轮传动机构, 即在二级齿轮 传动机构的基础上再增加第三级, 具体结构为: 在二级行星轮架 033 的前端面 设有与二级行星轮架 033—体结构的三级太阳轮 04,三级太阳轮 04外围对应的 减速箱 001内壁上设有三级内齿圈 041, 在三级太阳轮 04与三级内齿圈 041之 间设有若干个三级行星齿轮 042, 一般为 2〜6个, 三级行星齿轮 042上设置联 动轴 06连接三级行星轮架 043, 主动齿轮 7与三级行星轮架 043连动, 其余结 构相同。
本实用新型减速机构采用行星齿轮变速机构, 行星齿轮传动具有功率分流, 而各太阳轮构成共轴线式的传动, 各太阳轮、 行星齿轮及内齿圈间合理地应用 内啮合, 使智能割草机驱动轮减速机构具有体积小, 质量轻, 结构紧凑, 输入 输出同轴, 成本低; 太阳轮的周围均匀地分布着数个行星轮来共同分担载荷的 结构, 承载能力大、 传动效率高、 运动平稳、 抗冲击和振动的能力较强。

Claims

WO 2011/026419 权 利 要 求 书 PCT/CN2010/076486
1、 智能割草机的割草高度自动调节结构, 包括底座 (1)及护罩 (2), 护罩上安 装有带刀片 (3 ) 的刀片电机 (4), 其特征在于: 所述护罩 (2) 沿刀片电机轴向 滑动连接在底座 (1 ) 上, 护罩 (2)上还设有沿刀片电机轴向设置的连接柱 (21), 所述连接柱 (21)中设有内螺紋孔, 所述底座(1)上转动连接有调节螺栓 (5), 所 述调节螺栓 (5)前端与连接柱 (21)对应旋接, 所述调节螺栓后端与操作机构连 接, 所述操作机构包括设在底座上的启动电机(8)及控制启动电机工作的控制 总成, 启动电机 (8) 通过齿轮传动机构与调节螺栓后端连接。
2、 根据权利要求 1所述的智能割草机的割草高度自动调节结构, 其特征在于: 所述齿轮传动机构包括设在调节螺栓 (5)后端的从动齿轮 (6)以及设在启动电机 (8)输出轴上与所述从动齿轮连动的主动齿轮 (7)。
3、 根据权利要求 1所述的智能割草机的割草高度自动调节结构, 其特征在于: 所述操作机构为设在调节螺栓 (5)后端调节用的旋钮 (15)。
4、 根据权利要求 1或 2或 3所述的智能割草机的割草高度自动调节结构, 其特 征在于: 所述底座(1)上设有隔层(11), 所述隔层(11)中设有与调节螺栓 (5)对 应的通孔, 调节螺栓 (5)的螺纹根部套接有凸台(12), 所述底座 (1)上还设有压 板 (13), 所述压板 (13)将凸台(12)限位在隔层 (11)上。
5、 根据权利要求 1或 2或 3所述的智能割草机的割草高度自动调节结构, 其特 征在于: 所述底座(1)上设有导向孔 (14), 所述护罩 (2)上设有与导向孔 (14)对 应的导向柱 (22), 护罩 (2) 上的导向柱滑动连接在底座的导向孔 (14) 中。
6、 根据权利要求 1或 2或 3所述的智能割草机的割草高度自动调节结构, 其特 征在于: 所述控制总成包括控制启动电机正反转的 PC板及与 PC板连接的操作 面板。
7、 根据权利要求 1所述的智能割草机的割草高度自动调节结构, 其特征在于: 更正页 (细则第 91条) 在所述刀片电机 (4)转轴(40)上紧配安装有电机轴套(43),所述电机轴套(43) 中设有螺紋孔一 (42), 电机轴套(43) 的外圆弧表面上设有至少一根纵向定位 条 (41 ), 所述刀片 (3) 包括刃部和连接部 (31 ), 连接部 (31 ) 的一端设有用 于套接电机轴套(43)的轴套孔(413),所述轴套孔(413)中设有与定位条(41 ) 相适配的定位凹槽 (411 ), 连接部 (41 ) 的另一端开设有螺纹孔三 (412 ), 所 述刀片的连接部 (41 ) 套接在电机轴套 (43 ) 上并通过螺丝 (16 ) 拧入连接部 (41 ) 上的螺纹孔三 (412) 以及电机轴套 (43) 上的螺纹孔一 (42) 中加以固 定锁紧。
8、 根据权利要求 7所述的智能割草机的割草高度自动调节结构, 其特征在于: 根据权利要求 1 所述的智能割草机刀片安装结构, 其特征在于: 所述电机轴套 (43) 的一端开有紧配安装转轴 (40) 的轴孔 (44), 所述螺纹孔一 (42) 设置 在电机轴套 (43) 的另一端。
9、 根据权利要求 2所述的智能割草机的割草高度自动调节结构, 其特征在于: 所述齿轮传动机构还包括设在所述启动电机 (8)与主动齿轮 (7)间的减速机构, 所述减速机构包括减速箱 (001 ), 减速箱 (001 ) 内设有电机 (011 ) 及与电机
(011 ) 连接的齿轮传动机构, 减速箱 (001 ) 外设有与齿轮传动机构连接的驱 动轮 (09), 所述的齿轮传动机构为多级依次联动的行星轮齿轮传动组件, 每级 齿轮传动组件由太阳轮、 行星齿轮及内齿圈采用内啮合方式构成。
10、 根据权利要求 9所述的智能割草机的割草高度自动调节结构, 其特征在于- 所述齿轮传动机构为二级齿轮传动机构, 包括与启动电机 (8) 的输出轴连接的 一级太阳轮(02),一级太阳轮外围对应的减速箱内壁上设有一级内齿圈(021 ), 在一级太阳轮(02)与一级内齿圈(021 )之间设有若干个一级行星齿轮(022), 一级行星齿轮上设置联动轴 (06 ) 连接一级行星轮架 (023 ); —级行星轮架的 更正页 (细 8则第 91条) 前端面设有二级太阳轮(03), 二级太阳轮外围对应的减速箱内壁上设有二级内 齿圈 (031), 在二级太阳轮 (03) 与二级内齿圈 (031) 之间设有若干个二级行 星齿轮 (032), 二级行星齿轮上设置联动轴 (06) 连接二级行星轮架 (033), 所述主动齿轮 (7) 与二级行星轮架 (033) 连动。
11、根据权利要求 11所述的智能割草机的割草高度自动调节结构,其特征在于: 所述齿轮传动机构为三级齿轮传动机构, 包括与启动电机(8) 的输出轴连接的 一级太阳轮(02),一级太阳轮外围对应的减速箱内壁上设有一级内齿圈(021), 在一级太阳轮与一级内齿圈 (021) 之间设有若干个一级行星齿轮 (022), 一级 行星齿轮上设置联动轴 (06) 连接一级行星轮架 (023); —级行星轮架的前端 面设有二级太阳轮 (03), 二级太阳轮外围对应的减速箱 (01) 内壁上设有二级 内齿圈 (031), 在二级太阳轮 (03) 与二级内齿圈 (031) 之间设有若干个二级 行星齿轮(032), 二级行星齿轮上设置联动轴 (06)连接二级行星轮架 (033), 在二级行星轮架的前端面设有与二级行星轮架一体结构的三级太阳轮(04), 三 级太阳轮外围对应的减速箱内壁上设有三级内齿圈 (041), 在三级太阳轮与三 级内齿圈 041 之间设有若干个三级行星齿轮 (042), 三级行星齿轮上设置联动 轴 (06) 连接三级行星轮架 (043), 所述主动齿轮 (7) 与上级行星轮架 (043) 连动。
更正页 (9细则第 91条)
PCT/CN2010/076486 2009-09-04 2010-08-31 智能割草机的割草高度自动调节结构 WO2011026419A1 (zh)

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