WO2017101859A1 - Lawn mower - Google Patents

Lawn mower Download PDF

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Publication number
WO2017101859A1
WO2017101859A1 PCT/CN2016/110421 CN2016110421W WO2017101859A1 WO 2017101859 A1 WO2017101859 A1 WO 2017101859A1 CN 2016110421 W CN2016110421 W CN 2016110421W WO 2017101859 A1 WO2017101859 A1 WO 2017101859A1
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Prior art keywords
cutting
lawn mower
cavity
grass
disposed
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PCT/CN2016/110421
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French (fr)
Chinese (zh)
Inventor
赵凤丽
查霞红
付长帅
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苏州宝时得电动工具有限公司
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Priority to CN201510944908.2 priority Critical
Priority to CN201510945539.9 priority
Priority to CN201510946537 priority
Priority to CN201510946537.1 priority
Priority to CN201510944908 priority
Priority to CN201510945539 priority
Priority to CN201610037177.8 priority
Priority to CN201610037177 priority
Application filed by 苏州宝时得电动工具有限公司 filed Critical 苏州宝时得电动工具有限公司
Publication of WO2017101859A1 publication Critical patent/WO2017101859A1/en

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    • 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

Abstract

A lawn mower (1), comprising a housing (2) and a cutting motor, the housing having a longitudinal direction parallel to a forward direction of the lawn mower, and a lateral direction parallel to a work plane and perpendicular to the forward direction of the lawn mower; the cutting motor is mounted in the housing and provides a driving force; the lawn mower comprises at least two cutters (3), the cutters being driven by the cutting motor to rotate and execute the mowing work, the cutting scopes of the at least two cutters having a overlap portion therebetween along the longitudinal direction of the housing, and a ratio of a longitudinal dimension to a lateral dimension of the housing being less than 1.5. This invention reduces the volume and weight of the lawn mower, being effort-saving in the operation.

Description

割草机Lawn mower 技术领域Technical field
本发明涉及一种割草机,尤其涉及一种具有多个切割件的割草机。The present invention relates to a lawn mower, and more particularly to a lawn mower having a plurality of cutting members.
背景技术Background technique
割草机是帮助人们维护草坪的工具,一种常见的割草机为采用绕垂直轴旋转的切割件的割草机。现有割草机的一个问题是体积大,尤其对于手推割草机而言,笨重的机身使得机器的推行费力。为了实现割草效率,割草机的切割宽度不宜过小,在切割宽度一定的情况下,尤其对于采用绕垂直轴旋转的切割件的割草机来说,割草机的纵向尺寸往往远大于横向尺寸,造成割草机的体积大、机身笨重。A lawn mower is a tool that helps people maintain the lawn. A common lawn mower is a lawn mower that uses a cutting member that rotates about a vertical axis. One problem with existing lawn mowers is their large size, especially for hand-pushing lawn mowers, where the bulky fuselage makes the machine effortless. In order to achieve mowing efficiency, the cutting width of the mower should not be too small. In the case of a certain cutting width, especially for a mower using a cutting member rotating about a vertical axis, the longitudinal dimension of the mower is often much larger than The horizontal size causes the mower to be bulky and bulky.
发明内容Summary of the invention
为克服现有技术的缺陷,本发明所要解决的问题是,提供一种壳体的长度方向具有紧凑结构的多切割件割草机。In order to overcome the deficiencies of the prior art, the problem to be solved by the present invention is to provide a multi-cutting mower having a compact structure in the longitudinal direction of the casing.
本发明解决现有技术问题所采用的技术方案是:The technical solution adopted by the present invention to solve the prior art problem is:
一种割草机,包括:壳体,所述壳体具有平行于所述割草机的前进方向的纵向,以及平行于工作平面且垂直于所述割草机的前进方向的横向;切割马达,安装于所述壳体,提供驱动力;所述割草机包括至少2个切割件,所述切割件由所述切割马达驱动以旋转执行割草工作,其中至少2个所述切割件的切割范围沿所述壳体的纵向有重叠部分,所述壳体的纵向尺寸与横向尺寸的比值小于1.5。A lawn mower comprising: a casing having a longitudinal direction parallel to a forward direction of the lawn mower; and a transverse direction parallel to the working plane and perpendicular to a forward direction of the lawn mower; a cutting motor Installed in the housing to provide a driving force; the lawn mower includes at least two cutting members, the cutting member being driven by the cutting motor to rotate to perform a mowing operation, wherein at least two of the cutting members are The cutting range has overlapping portions along the longitudinal direction of the housing, the ratio of the longitudinal dimension to the lateral dimension of the housing being less than 1.5.
优选的,所述割草机包括壳体,所述壳体具有平行于所述割草机的前进方向的纵向,以及平行于工作平面且垂直于所述割草机的前进方向的横向;切割马达,安装于所述壳体,提供驱动力;所述割草机包括至少3个切割件,所述切割件由所述切割马达驱动以旋转执行割草工作,其中至少2个所述切割件的切割范围沿所述壳体的纵向有重叠部分,所述壳体的纵向尺寸与横向尺寸的比值小于1.5。Preferably, the lawn mower comprises a casing having a longitudinal direction parallel to a forward direction of the lawn mower, and a transverse direction parallel to the working plane and perpendicular to a forward direction of the lawn mower; cutting a motor mounted to the housing to provide a driving force; the lawn mower comprising at least three cutting members, the cutting member being driven by the cutting motor to perform a mowing operation in rotation, wherein at least two of the cutting members The cutting range has overlapping portions along the longitudinal direction of the housing, and the ratio of the longitudinal dimension to the lateral dimension of the housing is less than 1.5.
优选的,所述壳体的纵向尺寸与横向尺寸的比值小于1。Preferably, the ratio of the longitudinal dimension to the lateral dimension of the housing is less than one.
优选的,所述割草机包括3个所述切割件,第一切割件和第二切割件设置 在所述壳体的两侧,第三切割件设置在所述第一切割件和所述第二切割件之间,且设置在所述第一切割件和所述第二切割件的前侧。Preferably, the lawn mower comprises three of the cutting members, the first cutting member and the second cutting member are arranged On both sides of the housing, a third cutting member is disposed between the first cutting member and the second cutting member and disposed on a front side of the first cutting member and the second cutting member .
优选的,所述割草机还包括2个前轮,分别设置在所述第三切割件的两侧。Preferably, the lawn mower further comprises two front wheels respectively disposed on two sides of the third cutting member.
优选的,所述第三切割件的切割直径小于所述第一切割件和/或所述第二切割件的切割直径。Preferably, the cutting diameter of the third cutting member is smaller than the cutting diameter of the first cutting member and/or the second cutting member.
优选的,所述割草机包括3个所述切割件,第一切割件和第二切割件设置在所述壳体的两侧,第三切割件设置在所述第一切割件和所述第二切割件之间,且设置在所述第一切割件和所述第二切割件的后侧。Preferably, the lawn mower includes three of the cutting members, the first cutting member and the second cutting member are disposed on both sides of the casing, and the third cutting member is disposed on the first cutting member and the Between the second cutting members, and disposed on the rear side of the first cutting member and the second cutting member.
优选的,所述割草机还包括1个前轮,设置在所述第一切割件和所述第二切割件之间。Preferably, the lawn mower further includes a front wheel disposed between the first cutting member and the second cutting member.
优选的,所述第三切割件的切割直径小于所述第一切割件和/或所述第二切割件的切割直径。Preferably, the cutting diameter of the third cutting member is smaller than the cutting diameter of the first cutting member and/or the second cutting member.
优选的,所述割草机包括至少3个切割马达,所述切割马达与所述切割件一一对应地连接。Preferably, the lawn mower comprises at least three cutting motors, and the cutting motors are connected in one-to-one correspondence with the cutting members.
与现有技术相比,本发明的有益效果是:通过使多个切割件的切割范围沿壳体的纵向部分重叠,减小壳体的纵向尺寸,从而减小割草机的体积和重量,使用户操作省力。Compared with the prior art, the invention has the beneficial effects of reducing the volume and weight of the lawn mower by reducing the cutting range of the plurality of cutting members along the longitudinal portion of the casing to reduce the longitudinal dimension of the casing. Make the user's operation effortless.
本发明所要解决的另一个问题是提供一种切割件具有独立的切割腔体和独立的排草通道的多切割件割草机。Another problem to be solved by the present invention is to provide a multi-cutting mower having a cutting member having a separate cutting cavity and a separate grass channel.
本发明解决现有技术问题所采用的技术方案是:The technical solution adopted by the present invention to solve the prior art problem is:
一种割草机,包括:壳体;切割马达,安装于所述壳体,提供驱动力;多个切割件,由所述切割马达驱动以旋转执行割草工作;所述割草机还包括:与所述切割件一一对应的多个切割腔体,每个切割腔体收容一个所述切割件,所述切割腔体彼此独立;与所述切割腔体一一对应的多个排草通道,每个排草通道与一个所述切割腔体连通,所述排草通道彼此独立。A lawn mower comprising: a housing; a cutting motor mounted to the housing to provide a driving force; and a plurality of cutting members driven by the cutting motor to perform mowing work in rotation; the lawn mower further includes a plurality of cutting cavities corresponding to the cutting member, each cutting cavity housing one of the cutting members, the cutting cavities being independent of each other; and a plurality of rows of grass corresponding to the cutting cavity one-to-one Channels, each of the grass passages being in communication with one of the cutting chambers, the grass passages being independent of one another.
优选的,所述切割腔体包括覆盖所述切割件的腔体壁,所述腔体壁至少部分地沿所述切割件的切割范围的外围包围所述切割件,所述腔体壁上设有连接所述排草通道的开口。Preferably, the cutting cavity comprises a cavity wall covering the cutting member, the cavity wall at least partially surrounding the cutting member along a periphery of a cutting range of the cutting member, the cavity wall being provided There is an opening connecting the grass passage.
优选的,各所述腔体壁彼此独立。 Preferably, each of the cavity walls is independent of one another.
优选的,所述腔体壁的开口直径为所述切割件直径的1/5-1/2。Preferably, the opening diameter of the cavity wall is 1/5-1/2 of the diameter of the cutting member.
优选的,所述排草通道连接所述切割腔体的一端的尺寸小于连接排草口的一端的尺寸。Preferably, the size of one end of the grass cutting passage connecting the cutting cavity is smaller than the size of one end connected to the grass opening.
优选的,所述割草机包括多个切割马达,所述切割马达与所述切割件一一对应地连接。Preferably, the lawn mower includes a plurality of cutting motors, and the cutting motors are coupled to the cutting members in a one-to-one correspondence.
优选的,所述割草机包括至少3个所述切割件。Preferably, the lawn mower comprises at least 3 of the cutting members.
优选的,所述排草通道从所述切割腔体向所述壳体后部聚拢,所述切割件的旋转方向不同。Preferably, the grass discharge passage is gathered from the cutting cavity toward the rear of the casing, and the cutting members have different rotation directions.
优选的,所述排草通道相互平行,所述切割件的旋转方向相同。Preferably, the grass passages are parallel to each other, and the cutting members rotate in the same direction.
与现有技术相比,本发明的有益效果是:通过为每个切割件设置独立的切割腔体和独立的排草通道,提高多切割件割草机的排草效率。Compared with the prior art, the invention has the beneficial effects of improving the efficiency of the multi-cut mower by setting a separate cutting cavity and a separate grassing passage for each cutting member.
本发明所要解决的另一个问题是,提供一种能够有效地切割到边的多切割件割草机。Another problem to be solved by the present invention is to provide a multi-cutter lawn mower that can be effectively cut to the side.
本发明解决现有技术问题所采用的技术方案是:The technical solution adopted by the present invention to solve the prior art problem is:
一种割草机,包括:壳体;轮组,安装于所述壳体的底盘上,包括前轮和后轮;切割马达,安装于所述壳体,提供驱动力;至少2个切割件,由所述切割马达驱动以旋转执行割草工作;所述切割件交错排列,所述切割件切割范围的最前端与所述割草机的最前端的距离不超过100mm。A lawn mower comprising: a casing; a wheel set mounted on a chassis of the casing, including a front wheel and a rear wheel; a cutting motor mounted to the casing to provide a driving force; at least 2 cutting pieces Driven by the cutting motor to perform mowing work in rotation; the cutting members are staggered, and the distance between the foremost end of the cutting range of the cutting member and the foremost end of the lawn mower is not more than 100 mm.
优选的,所述割草机包括壳体;轮组,安装于所述壳体的底盘上,包括前轮和后轮;切割马达,安装于所述壳体,提供驱动力;至少3个切割件,由所述切割马达驱动以旋转执行割草工作;所述切割件交错排列,所述切割件切割范围的最前端与所述割草机的最前端的距离不超过100mm。Preferably, the lawn mower comprises a casing; a wheel set mounted on the chassis of the casing, comprising a front wheel and a rear wheel; a cutting motor mounted on the casing to provide a driving force; at least 3 cuttings And the mowing work is performed by the cutting motor to rotate; the cutting members are staggered, and a distance between a front end of the cutting range of the cutting member and a front end of the lawn mower is no more than 100 mm.
优选的,所述前轮至少部分位于所述切割件切割范围的最前端之后。Preferably, the front wheel is at least partially located behind the foremost end of the cutting range of the cutting member.
优选的,所述前轮的前端超过所述切割件切割范围的最前端的距离不大于80mm。Preferably, the front end of the front wheel exceeds the foremost end of the cutting range of the cutting member by a distance of not more than 80 mm.
优选的,所述前轮的前端超过所述切割件切割范围的最前端的距离不大于40mm。Preferably, the front end of the front wheel exceeds the foremost end of the cutting range of the cutting member by a distance of no more than 40 mm.
优选的,所述前轮的前端不超过所述切割件切割范围的最前端。Preferably, the front end of the front wheel does not exceed the foremost end of the cutting range of the cutting member.
优选的,所述切割件切割范围的最前端与所述割草机的最前端的距离不超 过60mm。Preferably, the front end of the cutting range of the cutting member is not more than the front end of the lawn mower Over 60mm.
优选的,所述割草机包括3个切割件,第一切割件和第二切割件设置在所述壳体两侧,第三切割件设置在所述第一切割件和所述第二切割件之间,且设置在所述第一切割件和所述第二切割件的前侧;包括2个前轮,分别设置在所述第三切割件的两侧。Preferably, the lawn mower comprises three cutting members, the first cutting member and the second cutting member are disposed on two sides of the casing, and the third cutting member is disposed on the first cutting member and the second cutting Between the pieces, and disposed on the front side of the first cutting piece and the second cutting piece; comprising two front wheels respectively disposed on both sides of the third cutting piece.
优选的,所述割草机包括3个切割件,第一切割件和第二切割件设置在所述壳体两侧,第三切割件设置在所述第一切割件和所述第二切割件之间,且设置在所述第一切割件和所述第二切割件的后侧;包括1个前轮,设置在所述第一切割件和所述第二切割件之间。Preferably, the lawn mower comprises three cutting members, the first cutting member and the second cutting member are disposed on two sides of the casing, and the third cutting member is disposed on the first cutting member and the second cutting Between the pieces, and disposed on the rear side of the first cutting piece and the second cutting piece; comprising a front wheel disposed between the first cutting piece and the second cutting piece.
优选的,所述割草机包括3个切割件,第一切割件和第二切割件设置在所述壳体两侧,第三切割件设置在所述第一切割件和所述第二切割件之间,且设置在所述第一切割件和所述第二切割件的前侧;包括1个前轮,设置在所述第一切割件和所述第二切割件的后侧。Preferably, the lawn mower comprises three cutting members, the first cutting member and the second cutting member are disposed on two sides of the casing, and the third cutting member is disposed on the first cutting member and the second cutting Between the pieces, and disposed on the front side of the first cutting piece and the second cutting piece; including one front wheel disposed on the rear side of the first cutting piece and the second cutting piece.
与现有技术相比,本发明的有益效果是:通过使多个切割件交错排列,减小切割件切割范围的最前端与割草机的最前端之间的距离,使得割草机能够有效地切割到边。Compared with the prior art, the beneficial effects of the present invention are: by staggering a plurality of cutting members, reducing the distance between the foremost end of the cutting range of the cutting member and the foremost end of the lawn mower, so that the lawn mower can be effective Cut to the side.
本发明所要解决的另一问题是:提供一种割草机,其可以实现碎草效率、割草效率及排草效率更高的有益效果。Another problem to be solved by the present invention is to provide a lawn mower that can achieve the benefits of higher grass efficiency, mowing efficiency, and higher efficiency of grass discharge.
本发明解决现有技术问题所采用的技术方案是:The technical solution adopted by the present invention to solve the prior art problem is:
一种割草机,包括:壳体;切割马达,安装于所述壳体,提供驱动力;多个切割件,由所述切割马达驱动以旋转执行割草工作;所述割草机还包括:与所述切割件对应的多个切割腔体,所述切割腔体彼此独立;与所述切割腔体对应的至少一个排草通道,所述至少一个排草通道与所述切割腔体连通。A lawn mower comprising: a housing; a cutting motor mounted to the housing to provide a driving force; and a plurality of cutting members driven by the cutting motor to perform mowing work in rotation; the lawn mower further includes a plurality of cutting cavities corresponding to the cutting member, the cutting cavities being independent of each other; at least one grass channel corresponding to the cutting cavity, the at least one grass channel communicating with the cutting cavity .
优选的,所述多个切割腔体与所述多个切割件一一对应,每个所述切割腔体收容一个所述切割件。Preferably, the plurality of cutting cavities are in one-to-one correspondence with the plurality of cutting members, and each of the cutting cavities houses one of the cutting members.
优选的,所述排草通道的数量与所述切割腔体的数量相同,每个所述排草通道与所述一个切割腔体连通,且所述排草通道彼此独立设置。Preferably, the number of the grass passages is the same as the number of the cutting cavities, each of the grass passages is in communication with the one cutting cavity, and the grass passages are disposed independently of each other.
优选的,所述切割腔体包括覆盖所述切割件的腔体壁,各所述腔体壁彼此独立。 Preferably, the cutting cavity comprises a cavity wall covering the cutting member, each of the cavity walls being independent of one another.
优选的,所述切割腔体包括覆盖所述切割件的腔体壁,所述割草机还包括形成于相邻的所述切割腔体的腔体壁之间的缺口,所述缺口向远离工作平面的方向凹陷。Preferably, the cutting cavity comprises a cavity wall covering the cutting member, and the lawn mower further comprises a notch formed between adjacent cavity walls of the cutting cavity, the notch being far away The direction of the work plane is concave.
优选的,所述腔体壁包括顶壁及与顶壁连接且在周向上围绕切割件的腔体侧壁,所述缺口凹陷形成于相邻的所述切割腔体的腔体侧壁上,在与割草机前进方向相垂直且与工作平面相垂直的方向上,所述缺口的深度小于所述腔体侧壁的深度。Preferably, the cavity wall comprises a top wall and a cavity sidewall connected to the top wall and surrounding the cutting member in a circumferential direction, the notch recess being formed on a sidewall of the cavity of the adjacent cutting cavity, The depth of the notch is less than the depth of the sidewall of the cavity in a direction perpendicular to the direction of advancement of the mower and perpendicular to the working plane.
优选的,所述缺口的深度大于等于腔体侧壁的深度的1/2。Preferably, the depth of the notch is greater than or equal to 1/2 of the depth of the sidewall of the cavity.
优选的,所述缺口的深度范围为40mm-90mm。Preferably, the depth of the notch ranges from 40 mm to 90 mm.
优选的,所述缺口的宽度范围为90mm-140mm。Preferably, the gap has a width ranging from 90 mm to 140 mm.
优选的,所述切割腔体包括覆盖所述切割件的腔体壁,所述腔体壁至少部分地沿所述切割件的切割范围的外围包围所述切割件,所述腔体壁上设有连接所述排草通道的腔体开口。Preferably, the cutting cavity comprises a cavity wall covering the cutting member, the cavity wall at least partially surrounding the cutting member along a periphery of a cutting range of the cutting member, the cavity wall being provided There is a cavity opening connecting the grass passage.
优选的,所述腔体壁的腔体开口直径为所述切割件直径的1/5-1/2。Preferably, the cavity opening diameter of the cavity wall is 1/5-1/2 of the diameter of the cutting member.
优选的,所述多个切割件的旋转方向均相同。Preferably, the plurality of cutting members have the same direction of rotation.
优选的,所述多个切割件包括第一切割件与第二切割件,所述第一切割件切割形成第一割草面,所述第二切割件切割形成第二割草面,所述第一割草面与第二割草面在所述割草机的前进方向上至少部分重叠,所述第一割草面与第二割草面相重叠的区域在与割草机前进方向相垂直且与工作平面相平行的方向上的尺寸范围为0ˉ30mm。Preferably, the plurality of cutting members comprise a first cutting member and a second cutting member, the first cutting member is cut to form a first mowing surface, and the second cutting member is cut to form a second mowing surface, The first mowing surface and the second mowing surface at least partially overlap in a forward direction of the lawn mower, and the area where the first mowing surface overlaps the second mowing surface is perpendicular to a forward direction of the lawn mower And the dimension in the direction parallel to the working plane ranges from 0 to 30 mm.
优选的,所述割草机包括多个切割马达,所述切割马达与所述切割件一一对应地连接。Preferably, the lawn mower includes a plurality of cutting motors, and the cutting motors are coupled to the cutting members in a one-to-one correspondence.
优选的,所述割草机包括3个所述切割件,第一切割件和第二切割件设置在所述壳体两侧,第三切割件设置在所述第一切割件和所述第二切割件之间,且设置在所述第一切割件和所述第二切割件的后侧。Preferably, the lawn mower comprises three of the cutting members, the first cutting member and the second cutting member are disposed on two sides of the casing, and the third cutting member is disposed on the first cutting member and the first Between the two cutting members, and disposed on the rear side of the first cutting member and the second cutting member.
优选的,所述壳体的后部设有与所述排草通道连通的排草口,所述排草通道连接所述切割腔体的一端的尺寸小于连接排草口的一端的尺寸。Preferably, the rear portion of the casing is provided with a grass opening communicating with the grass passage, and the size of one end of the grass passage connecting the cutting cavity is smaller than the size of one end connecting the grass opening.
优选的,相邻的所述排草通道的纵轴线的夹角大于等于10度且小于等于45度。 Preferably, the longitudinal axis of the adjacent grass passages has an angle of greater than or equal to 10 degrees and less than or equal to 45 degrees.
优选的,所述多个排草通道相互平行。Preferably, the plurality of grass passages are parallel to each other.
与现有技术相比,本发明至少具有如下有益效果:Compared with the prior art, the present invention has at least the following beneficial effects:
1.通过为每个切割件设置独立的切割腔体和独立的排草通道,提高多切割件割草机的排草效率;1. Improve the efficiency of the multi-cut mower by setting a separate cutting cavity and a separate grassing passage for each cutting piece;
2.进一步的,通过在相邻的两个切割腔体之间设置一凹槽结构,以实现每个切割腔体内的气体的流动空间,提高了碎草及割草效率。2. Further, by providing a groove structure between the adjacent two cutting cavities, the flow space of the gas in each cutting cavity is realized, and the efficiency of grass and mowing is improved.
3.通过使多个切割件错开排列,减小切割件切割范围的最前端与割草机的最前端之间的距离,使得割草机能够有效地切割到边;3. By displacing a plurality of cutting members, the distance between the foremost end of the cutting range of the cutting member and the foremost end of the lawn mower is reduced, so that the lawn mower can effectively cut to the edge;
4.通过使多个切割件的切割范围沿壳体的纵向部分重叠,减小壳体的纵向尺寸,从而减小割草机的体积和重量,使用户操作省力。4. By overlapping the cutting range of the plurality of cutting members along the longitudinal portion of the casing, the longitudinal dimension of the casing is reduced, thereby reducing the volume and weight of the lawn mower, and saving labor for the user.
本发明所要解决的另一问题是:提供一种能有效降低体积功率比的割草机。Another problem to be solved by the present invention is to provide a lawn mower that can effectively reduce the volumetric power ratio.
本发明解决现有技术问题所采用的技术方案是:The technical solution adopted by the present invention to solve the prior art problem is:
一种割草机,包括:壳体;切割马达,安装于所述壳体,提供驱动力;多个切割件,由所述切割马达驱动以旋转执行割草工作;至少其中2个所述切割件的切割范围沿所述壳体的纵向有重叠部分,使得所述割草机的总输出功率与割草机的体积的比值大于等于6kW/m3A lawn mower comprising: a housing; a cutting motor mounted to the housing to provide a driving force; a plurality of cutting members driven by the cutting motor to perform mowing work; at least 2 of the cutting The cutting range of the pieces has overlapping portions in the longitudinal direction of the casing such that the ratio of the total output power of the mower to the volume of the mower is 6 kW/m 3 or more .
优选的,所述割草机的总输出功率与割草机的体积的比值大于等于7.5kW/m3Preferably, the ratio of the total output power of the lawn mower to the volume of the lawn mower is greater than or equal to 7.5 kW/m 3 .
优选的,所述割草机的体积小于等于0.16m3Preferably, the lawn mower has a volume of 0.16 m 3 or less.
优选的,所述割草机的总输出功率大于等于1kW。Preferably, the total output power of the lawn mower is greater than or equal to 1 kW.
优选的,所述割草机的总输出功率与割草机的质量的比值大于等于0.04kW/kg。Preferably, the ratio of the total output power of the lawn mower to the mass of the lawn mower is greater than or equal to 0.04 kW/kg.
优选的,所述割草机的总输出功率与割草机的质量的比值大于等于0.06kW/kg。Preferably, the ratio of the total output power of the lawn mower to the mass of the lawn mower is greater than or equal to 0.06 kW/kg.
优选的,所述割草机的质量小于等于23kg。Preferably, the mower has a mass of 23 kg or less.
优选的,所述割草机包括3个所述切割件,第一切割件和第二切割件设置在所述壳体的两侧,第三切割件设置在所述第一切割件和所述第二切割件之间,且设置在所述第一切割件和所述第二切割件的前侧。Preferably, the lawn mower includes three of the cutting members, the first cutting member and the second cutting member are disposed on both sides of the casing, and the third cutting member is disposed on the first cutting member and the Between the second cutting members, and disposed on the front side of the first cutting member and the second cutting member.
优选的,所述割草机还包括2个前轮,分别设置在所述第三切割件的两侧。 Preferably, the lawn mower further comprises two front wheels respectively disposed on two sides of the third cutting member.
优选的,所述割草机包括3个所述切割件,第一切割件和第二切割件设置在所述壳体的两侧,第三切割件设置在所述第一切割件和所述第二切割件之间,且设置在所述第一切割件和所述第二切割件的后侧。Preferably, the lawn mower includes three of the cutting members, the first cutting member and the second cutting member are disposed on both sides of the casing, and the third cutting member is disposed on the first cutting member and the Between the second cutting members, and disposed on the rear side of the first cutting member and the second cutting member.
在其中一个实施例中,所述割草机还包括1个前轮,设置在所述第一切割件和所述第二切割件之间。In one embodiment, the lawn mower further includes a front wheel disposed between the first cutting member and the second cutting member.
在其中一个实施例中,所述割草机包括多个切割马达,所述切割马达与所述切割件一一对应地连接。In one of the embodiments, the lawn mower includes a plurality of cutting motors, and the cutting motors are coupled to the cutting members in a one-to-one correspondence.
优选的,所述割草机包括电池包,为割草机的工作提供电能。Preferably, the lawn mower includes a battery pack to provide electrical energy for the operation of the lawn mower.
上述割草机,采用多个分立的切割件代替传统的单切割件。至少其中2个切割件的切割范围沿壳体的纵向有重叠部分,使得上述割草机的总输出功率与割草机的体积的比值大于等于6kW/m3。与传统的割草机相比,在功率相同时体积显著减小。因此,上述割草机可有效降低体积功率比,在所需输出功率一定时,可以将体积做的更小。The above lawn mower uses a plurality of discrete cutting members instead of the conventional single cutting members. The cutting range of at least two of the cutting members has an overlapping portion in the longitudinal direction of the casing such that the ratio of the total output power of the lawn mower to the volume of the lawn mower is 6 kW/m 3 or more . Compared to conventional lawn mowers, the volume is significantly reduced at the same power. Therefore, the above mower can effectively reduce the volumetric power ratio, and the volume can be made smaller when the required output power is constant.
附图说明DRAWINGS
以上所述的本发明的目的、技术方案以及有益效果可以通过下面附图实现:The objects, technical solutions, and advantageous effects of the present invention described above can be achieved by the following figures:
图1是本发明的第一实施例的割草机结构图。BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a structural view of a lawn mower according to a first embodiment of the present invention.
图2是图1中A-A剖视图。Figure 2 is a cross-sectional view taken along line A-A of Figure 1.
图3是本发明的第二实施例的割草机结构图。Figure 3 is a structural view of a lawn mower according to a second embodiment of the present invention.
图4是现有技术中割草机结构图。Figure 4 is a structural view of a lawn mower in the prior art.
图5是本发明的第三实施例的割草机结构图。Figure 5 is a structural view of a lawn mower according to a third embodiment of the present invention.
图6是本发明的第五实施例的割草机结构图。Figure 6 is a structural view of a lawn mower according to a fifth embodiment of the present invention.
图7是本发明的另一实施例的割草机结构图。Figure 7 is a structural view of a lawn mower according to another embodiment of the present invention.
图8是本发明的第八实施例的割草机结构图。Figure 8 is a structural view of a lawn mower according to an eighth embodiment of the present invention.
图9是本发明的另一实施例的割草机交流电源供电电路图。Fig. 9 is a circuit diagram showing an AC power supply circuit of a lawn mower according to another embodiment of the present invention.
图10是本发明的第九实施例的割草机结构图。Figure 10 is a structural view of a lawn mower according to a ninth embodiment of the present invention.
图11是图10中割草机的缺口处的剖视图。Figure 11 is a cross-sectional view of the gap of the lawn mower of Figure 10.
图12是图10所提供的割草机中的缺口从K方向看时的结构图。Fig. 12 is a structural view showing a notch in the lawn mower shown in Fig. 10 as seen from the K direction.
图13是本发明的第十实施例的割草机的结构图。 Figure 13 is a configuration diagram of a lawn mower according to a tenth embodiment of the present invention.
图14是本发明的第十一实施例的割草机的结构图。Figure 14 is a configuration diagram of a lawn mower according to an eleventh embodiment of the present invention.
图15是本发明的第十二实施例的割草机的结构图。Figure 15 is a structural view of a lawn mower according to a twelfth embodiment of the present invention.
1、割草机               1’、割草机            1”、割草机1. Lawn mower 1', lawn mower 1", lawn mower
1”’、割草机           1””、割草机          11、腔体壁1”’, lawn mower 1””, lawn mower 11, cavity wall
11’、腔体壁            111’、第一腔体壁      111”、第一腔体壁11', cavity wall 111', first cavity wall 111", first cavity wall
112’、第二腔体壁       112”、第二腔体壁      113”、第三腔体壁112', second cavity wall 112", second cavity wall 113", third cavity wall
15、腔体侧壁            15’、腔体侧壁         151’、第一腔体侧壁15. Cavity sidewall 15', cavity sidewall 151', first cavity sidewall
152’、第二腔体侧壁     17、腔体开口           17’、腔体开口152', second cavity sidewall 17, cavity opening 17', cavity opening
19、第一前轮            2、壳体                21、第二前轮19. First front wheel 2. Housing 21, second front wheel
23、前轮                25、前轮               3、切割件23, front wheel 25, front wheel 3, cutting parts
301、第一切割件         302、第二切割件        303、第三切割件301, a first cutting member 302, a second cutting member 303, and a third cutting member
5、切割腔体             5’、切割腔体          5”、切割腔体5. Cutting cavity 5', cutting cavity 5", cutting cavity
5”’、切割腔体         501、第一切割腔体      501’、第一切割腔体5"', cutting cavity 501, first cutting cavity 501', first cutting cavity
501”、第一切割腔体     501”’、第一切割腔体  502、第二切割腔体501", first cutting cavity 501"', first cutting cavity 502, second cutting cavity
502’、第二切割腔体     502”、第二切割腔体    502”’、第二切割腔体502', second cutting cavity 502", second cutting cavity 502"', second cutting cavity
503、第三切割腔体       503”、第三切割腔体    503”’、第三切割腔体503, a third cutting cavity 503", a third cutting cavity 503"', a third cutting cavity
7、排草通道             7’、排草通道          7”、排草通道7. Rowing channel 7', rowing channel 7", rowing channel
7”’、排草通道         7””、排草通道        701、第一排草通道7”’, rowing channel 7””, rowing channel 701, first row of grass channel
701’、第一排草通道     701”、第一排草通道    701”’、第一排草通道701', first row of grass passages 701", first row of grass passages 701"', first row of grass passages
702、第二排草通道       702’、第二排草通道    702”、第二排草通道702, second row of grass channel 702', second row of grass channel 702", second row of grass channel
702”’、第二排草通道   703、第三排草通道      703”、第三排草通道702”’, second row of grass channel 703, third row of grass channel 703”, third row of grass channel
703”’、第三排草通道   8、缺口                8’、缺口703”’, third row of grass passages 8, gaps 8’, gaps
8”、缺口               81、第一边缘           82、第二边缘8", notch 81, first edge 82, second edge
83、第一缺口            84、第二缺口           9、排草口83, the first gap 84, the second gap 9, the grass mouth
9’、排草口             9”、排草口            9”’、排草口9’, row of grass 9”, row of grass 9”’, row of grass
具体实施方式detailed description
下面结合附图对本发明的较佳实施例进行详细阐述,以使本发明的优点和特征能更易于被本领域技术人员理解,从而对本发明的保护范围做出更为清楚明确的界定。 The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings, in which the advantages and features of the invention can be more readily understood by those skilled in the art.
图1为本发明的第一实施例的割草机1结构图。如图1所示,割草机1置于地面上,以垂直于地面的方向为垂直方向,以平行于割草机1前进方向的方向为割草机1的纵向,垂直于割草机1前进方向的方向为割草机1的横向,以图纸的上方为割草机1的右侧,图纸的下方为割草机1的左侧。割草机1包括:壳体2;切割马达(图未示),安装于壳体2,提供驱动力;多个切割件3,由切割马达驱动以旋转执行割草工作;割草机1还包括与切割件3一一对应的多个切割腔体5,每个切割腔体收容一个切割件,切割腔体5彼此独立;与切割腔体5一一对应的多个排草通道7,每个排草通道与一个切割腔体连通,排草通道7彼此独立。Fig. 1 is a structural view showing a lawn mower 1 according to a first embodiment of the present invention. As shown in Fig. 1, the lawn mower 1 is placed on the ground in a direction perpendicular to the ground, in a direction parallel to the direction of advancement of the lawn mower 1, in the longitudinal direction of the lawn mower 1, perpendicular to the lawn mower 1 The direction of the forward direction is the lateral direction of the lawn mower 1, with the upper side of the drawing being the right side of the lawn mower 1 and the lower side of the drawing being the left side of the lawn mower 1. The lawn mower 1 includes: a casing 2; a cutting motor (not shown) mounted to the casing 2 to provide a driving force; and a plurality of cutting members 3 driven by the cutting motor to perform mowing work in rotation; the lawn mower 1 further The cutting cavity 5 includes a plurality of cutting cavities 1 corresponding to the cutting member 3, each cutting cavity housings one cutting member, and the cutting cavity 5 is independent of each other; and a plurality of rows of grass passages 7 corresponding to the cutting cavity 5, each The grass passages are connected to a cutting chamber, and the grass passages 7 are independent of each other.
切割马达收容于割草机1的壳体2,并用于驱动切割件3绕垂直轴旋转,执行割草工作。如图1所示,割草机包括3个切割件3,分别为第一切割件301、第二切割件302和第三切割件303。壳体2的底盘上设有与切割件3一一对应的3个切割腔体5,分别为第一切割腔体501、第二切割腔体502和第三切割腔体503,每个切割腔体收容一个切割件,具体的,第一切割腔体501收容第一切割件301,第二切割腔体502收容第二切割件302,第三切割腔体503收容第三切割件303。第一切割腔体501、第二切割腔体502和第三切割腔体503彼此独立。壳体的底盘上还设有与切割件3一一对应的3个排草通道7,分别为第一排草通道701、第二排草通道702和第三排草通道703,每个排草通道与一个切割腔体连通,具体的,第一排草通道701连通第一切割腔体501,第二排草通道702连通第二切割腔体502,第三排草通道703连通第三切割腔体。第一排草通道701、第二排草通道702和第三排草通道703彼此独立。割草机1工作时,切割件3的旋转在切割腔体5内形成气流,被切割的草受切割腔体5内气流的引导而流动,流向与切割腔体5对应的排草通道7。排草通道7另一端连接壳体2后部的草箱(图未示),被切割的碎草通过排草通道7流入草箱。切割腔体5彼此独立,避免了不同切割件3切割的碎草相互碰撞,影响排草效率。排草通道7彼此独立,避免了不同流向的碎草相互碰撞,造成碎草在排草口9堆积。The cutting motor is housed in the casing 2 of the lawn mower 1 and is used to drive the cutting member 3 to rotate about a vertical axis to perform a mowing operation. As shown in FIG. 1, the lawn mower includes three cutting members 3, which are a first cutting member 301, a second cutting member 302, and a third cutting member 303, respectively. The chassis of the housing 2 is provided with three cutting cavities 5 corresponding to the cutting member 3, which are respectively a first cutting cavity 501, a second cutting cavity 502 and a third cutting cavity 503, each cutting cavity The first cutting cavity 501 receives the first cutting member 301, the second cutting cavity 502 receives the second cutting member 302, and the third cutting cavity 503 receives the third cutting member 303. The first cutting cavity 501, the second cutting cavity 502, and the third cutting cavity 503 are independent of each other. The bottom chassis of the casing is further provided with three grass passages 7 corresponding to the cutting member 3, which are a first row of grass passages 701, a second row of grass passages 702 and a third row of grass passages 703, each of which is arranged The channel is connected to a cutting cavity. Specifically, the first row of grass channels 701 communicate with the first cutting cavity 501, the second row of grass channels 702 communicate with the second cutting cavity 502, and the third row of grass channels 703 communicate with the third cutting cavity. body. The first row of grass channels 701, the second row of grass channels 702, and the third row of grass channels 703 are independent of each other. When the lawn mower 1 is in operation, the rotation of the cutting member 3 forms an air flow in the cutting chamber 5, and the cut grass flows by the flow of the air in the cutting chamber 5, and flows to the grass passage 7 corresponding to the cutting chamber 5. The other end of the grass discharge passage 7 is connected to a straw box (not shown) at the rear of the casing 2, and the cut grass is flowed into the straw box through the grass discharge passage 7. The cutting cavities 5 are independent of each other, and the grasses cut by the different cutting members 3 are prevented from colliding with each other, which affects the efficiency of the grass discharging. The grass discharge passages 7 are independent of each other, and the grasses of different flow directions are prevented from colliding with each other, causing the grass to accumulate at the grass discharge port 9.
图2为图1中A-A剖视图,结合图1和图2,本实施例中,切割腔体5包括覆盖切割件3的腔体壁11,腔体壁11至少部分地沿切割件3的切割范围的 外围包围切割件3,腔体壁11上设有连接排草通道7的开口17。如图2,腔体壁11在切割件3的上方覆盖切割件3,腔体壁11包括围绕切割件3的侧壁15。切割件3旋转形成切割半径,腔体侧壁15具有半径略大于切割半径的圆形轮廓。腔体壁11上设有连接排草通道7的开口17,切割腔体5内的碎草通过腔体壁11的开口17流入排草通道5,进入草箱。被切割的碎草通过腔体壁11保持在切割腔体5内,在切割件3形成的气流作用下旋转,并流向腔体壁11的开口17。腔体壁11的轮廓使得切割腔体5能够满足收容切割件3并引导碎草流动的功能,从而提高切割效率和排草效率。Figure 2 is a cross-sectional view taken along line AA of Figure 1, in conjunction with Figures 1 and 2, in the present embodiment, the cutting cavity 5 includes a cavity wall 11 covering the cutting member 3, the cavity wall 11 at least partially along the cutting extent of the cutting member 3. of The periphery encloses the cutting member 3, and the cavity wall 11 is provided with an opening 17 connecting the grass passage 7. 2, the cavity wall 11 covers the cutting member 3 above the cutting member 3, the cavity wall 11 comprising a side wall 15 surrounding the cutting member 3. The cutting member 3 is rotated to form a cutting radius, and the cavity side wall 15 has a circular contour having a radius slightly larger than the cutting radius. The cavity wall 11 is provided with an opening 17 connecting the grass discharge passage 7, and the grass in the cutting cavity 5 flows into the grass passage 5 through the opening 17 of the cavity wall 11 to enter the grass box. The cut grass is held in the cutting cavity 5 through the cavity wall 11, rotates under the flow of air formed by the cutting member 3, and flows to the opening 17 of the cavity wall 11. The contour of the cavity wall 11 enables the cutting cavity 5 to function to accommodate the cutting member 3 and guide the flow of the grass, thereby improving cutting efficiency and grassing efficiency.
本实施例中,各腔体壁彼此独立。每个切割腔体具有各自的腔体壁,具体的,每个切割腔体具有各自的腔体侧壁,各个切割腔体互不连通。腔体壁相互独立能够避免不同切割件切割的碎草在不同切割腔体内流通,避免不同流向的碎草碰撞,影响切割效率。In this embodiment, each cavity wall is independent of each other. Each cutting cavity has a respective cavity wall. Specifically, each cutting cavity has a respective cavity sidewall, and each cutting cavity is disconnected from each other. The cavity walls are independent of each other to prevent the grass cutting by different cutting parts from flowing in different cutting cavities, avoiding collision of grasses of different flow directions, and affecting cutting efficiency.
本实施例中,腔体壁11的开口17直径为切割件3直径的1/5-1/2。具体的,本实施例中,腔体壁11的开口17直径为切割件3直径的1/3。腔体壁11的开口17供切割腔体5内的碎草被引导至排草通道7,开口17的直径为切割件3直径的1/3,能够满足切割腔体5内的碎草被及时排出,同时不会因为开口17过大而扰乱切割腔体5内的旋转气流。In the present embodiment, the opening 17 of the cavity wall 11 has a diameter of 1/5 - 1/2 of the diameter of the cutting member 3. Specifically, in the present embodiment, the opening 17 of the cavity wall 11 has a diameter which is 1/3 of the diameter of the cutting member 3. The opening 17 of the cavity wall 11 is for guiding the grass in the cutting cavity 5 to the grass discharge passage 7, and the diameter of the opening 17 is 1/3 of the diameter of the cutting member 3, which can satisfy the grass in the cutting cavity 5 in time. Discharge, while not disturbing the swirling airflow within the cutting chamber 5 because the opening 17 is too large.
本实施例中,割草机1包括多个切割马达,切割马达与切割件3一一对应地连接。具体的,割草机1包括3个切割马达,分别驱动第一切割件301、第二切割件302和第三切割件303。切割马达与切割件3一一对应有利于对切割工作的灵活控制。每个切割马达驱动一个切割件,降低了对马达功率的要求,从而降低了成本。In the present embodiment, the lawn mower 1 includes a plurality of cutting motors, and the cutting motors are connected to the cutting members 3 in one-to-one correspondence. Specifically, the lawn mower 1 includes three cutting motors that drive the first cutting member 301, the second cutting member 302, and the third cutting member 303, respectively. The one-to-one correspondence between the cutting motor and the cutting member 3 facilitates flexible control of the cutting work. Each cutting motor drives a cutting member, reducing the power requirements of the motor, thereby reducing costs.
本实施例中,割草机1包括至少3个切割件,具体的,割草机包括第一切割件301、第二切割件302和第三切割件303。如图1所示,X-X为壳体的纵轴线,切割件3交错设置,第三切割件303设置在纵轴线X-X上,第一切割件301和第二切割件302设置在两侧,第一切割件301的切割范围与第三切割件303的切割范围沿壳体2横向至少部分地重叠,第二切割件302的切割范围与第三切割件303的切割范围沿壳体2横向至少部分地重叠。这样的设置保证切割件3的切割范围能够覆盖割草机1的切割宽度,避免二次切割。 In the present embodiment, the lawn mower 1 includes at least three cutting members. Specifically, the lawn mower includes a first cutting member 301, a second cutting member 302, and a third cutting member 303. As shown in Figure 1, XX is the longitudinal axis of the housing, the cutting members 3 are staggered, the third cutting member 303 is disposed on the longitudinal axis XX, and the first cutting member 301 and the second cutting member 302 are disposed on both sides, first The cutting range of the cutting member 301 and the cutting range of the third cutting member 303 at least partially overlap in the lateral direction of the housing 2, and the cutting range of the second cutting member 302 and the cutting range of the third cutting member 303 are at least partially transverse to the housing 2 overlapping. Such an arrangement ensures that the cutting range of the cutting member 3 can cover the cutting width of the lawn mower 1 and avoid secondary cutting.
本实施例中,排草通道7从切割腔体5向壳体2后部聚拢,切割件3的旋转方向不同。如图1所示,第一排草通道701和第二排草通道702分别连接于第一切割腔体501和第二切割腔体502的外半侧,第一排草通道701和第二排草通道702的另一端向壳体2的纵轴线X-X靠拢,连接于壳体2后部的排草口9。具体的,第一排草通道701连接于第一切割腔体501的右半侧,沿顺时针方向向排草口9延伸,第一切割件301沿顺时针方向旋转,被切割的碎草沿顺时针方向流入第一排草通道701,并经由第一排草通道701流入草箱。第二排草通道702连接于第二切割腔体502的左半侧,沿逆时针方向向排草口9延伸,第二切割件302沿逆时针方向旋转,被切割的碎草沿逆时针方向流入第二排草通道702,并经由第二排草通道702流入草箱。第三排草通道703的方向可以与第一排草通道701或者第二排草通道702的方向一致,第三切割件303的旋转方向相应的与第一切割件301或者第二切割件302的旋转方向一致。本实施例中,排草通道7从切割腔体5向壳体2后部聚拢,能够减小壳体2的横向尺寸,使割草机1的结构紧凑。In the present embodiment, the grass discharge passage 7 is gathered from the cutting cavity 5 toward the rear of the casing 2, and the rotation direction of the cutting member 3 is different. As shown in FIG. 1, the first row of grass channels 701 and the second row of grass channels 702 are respectively connected to the outer half of the first cutting cavity 501 and the second cutting cavity 502, the first row of grass channels 701 and the second row The other end of the grass channel 702 is brought closer to the longitudinal axis XX of the housing 2 and is connected to the grass opening 9 at the rear of the housing 2. Specifically, the first row of grass passages 701 are connected to the right half of the first cutting cavity 501, and extend clockwise toward the grass opening 9. The first cutting member 301 rotates clockwise, and the cut grass edge is cut. The first row of grass passages 701 flow into the clockwise direction and flow into the grass box via the first row of grass passages 701. The second row of grass passages 702 are connected to the left half of the second cutting cavity 502, extend counterclockwise toward the grass opening 9, the second cutting member 302 rotates counterclockwise, and the cut grass is counterclockwise It flows into the second row of grass passages 702 and flows into the grass box via the second row of grass passages 702. The direction of the third row of grass passages 703 may coincide with the direction of the first row of grass passages 701 or the second row of grass passages 702, and the direction of rotation of the third cutting member 303 corresponding to the first cutting member 301 or the second cutting member 302 The direction of rotation is the same. In the present embodiment, the grass discharge passage 7 is gathered from the cutting cavity 5 toward the rear of the casing 2, and the lateral dimension of the casing 2 can be reduced, so that the structure of the lawn mower 1 is compact.
图7为本发明的另一实施例的割草机1结构图,割草机1与第一实施例的主要结构基本一致,差异在于,排草通道7’相互平行,切割件3的旋转方向相同。本实施例中,切割件3的旋转方向一致,排草通道7’连接于对应的切割腔体5的同半侧,沿相同方向延伸至壳体2后部的排草口9。具体的,本实施例中,切割件3的旋转方向均为顺时针,排草通道7’连接于对应切割腔体5的右半侧,沿顺时针方向延伸至壳体2后部,排草通道7’的方向大致平行。切割件3切割的碎草沿顺时针方向流入排草通道7’,并经由排草通道7’流入草箱。本实施例中,切割件3的旋转方向一致,排草通道7’相互平行,碎草沿相同方向流入草箱,避免了相互干扰,收草效率高,碎草能够流向草箱中距离排草口9较远的位置,不会在排草口9附近相互碰撞而积聚在一处,使得草箱的满草率提高,实现倒草次数少。切割件3的旋转方向相同,使得驱动各个切割件的切割马达具有通用性,切割件3也具有通用性,割草机1的制造成本和维护成本更低。Figure 7 is a structural view of a lawn mower 1 according to another embodiment of the present invention. The lawn mower 1 is substantially identical to the main structure of the first embodiment, with the difference that the grass passages 7' are parallel to each other and the rotation direction of the cutting member 3 is the same. In the present embodiment, the cutting members 3 are rotated in the same direction, and the grass passages 7' are connected to the same half of the corresponding cutting cavities 5, and extend in the same direction to the grass opening 9 at the rear of the casing 2. Specifically, in this embodiment, the rotation direction of the cutting member 3 is clockwise, and the grass passage 7' is connected to the right half of the corresponding cutting cavity 5, and extends clockwise to the rear of the casing 2, and the grass is arranged. The direction of the channel 7' is substantially parallel. The grass cut by the cutting member 3 flows into the grass passage 7' in a clockwise direction and flows into the grass box via the grass passage 7'. In this embodiment, the rotation direction of the cutting member 3 is the same, the grass passages 7' are parallel to each other, and the grass is flowed into the straw box in the same direction, thereby avoiding mutual interference, high grass collection efficiency, and the grass can flow to the grass box to distance the grass. The position of the mouth 9 is far away, and does not collide with each other in the vicinity of the row of grasses 9 and accumulates in one place, so that the grassy grass has increased the grassy rate and the number of grasses is reduced. The rotation directions of the cutting members 3 are the same, so that the cutting motor for driving the respective cutting members has versatility, the cutting members 3 are also versatile, and the manufacturing cost and maintenance cost of the lawn mower 1 are lower.
本发明的另一实施例中,割草机1与第一实施例的主要结构基本一致,差异在于,排草通道7连接切割腔体5的一端的尺寸小于连接排草口9的一端的 尺寸。排草通道连接切割腔体5的一端为入口,连接排草口9的一端为出口,排草通道的入口尺寸小于出口尺寸。通道呈前窄后宽的锥形,使得排草通道入口处的气压大于出口处的气压,有利于碎草在通道内的快速流动和排出,从而提高收草效率。In another embodiment of the present invention, the lawn mower 1 is substantially identical to the main structure of the first embodiment, with the difference that the size of one end of the grass cutting passage 7 connected to the cutting cavity 5 is smaller than the end of the grass connecting port 9 size. One end of the grass passage connecting the cutting cavity 5 is an inlet, and one end of the grass opening 9 is an outlet, and the inlet size of the grass passage is smaller than the outlet size. The channel has a narrow front and a wide width, so that the air pressure at the inlet of the grass channel is greater than the air pressure at the outlet, which facilitates the rapid flow and discharge of the grass in the channel, thereby improving the grass collection efficiency.
图3是本发明的第二实施例的割草机结构图。割草机1包括:壳体2,具有平行于割草机1的前进方向的纵向,以及平行于工作平面且垂直于割草机1的前进方向的横向;切割马达(图未示),安装于壳体2,提供驱动力;割草机1还包括至少2个切割件3,切割件3由切割马达驱动以旋转执行割草工作,其中至少2个切割件的切割范围沿壳体2的纵向有重叠部分,壳体2的纵向尺寸L与横向尺寸W的比值小于1.5。Figure 3 is a structural view of a lawn mower according to a second embodiment of the present invention. The lawn mower 1 comprises: a casing 2 having a longitudinal direction parallel to the advancing direction of the lawn mower 1 and a transverse direction parallel to the working plane and perpendicular to the advancing direction of the lawn mower 1; a cutting motor (not shown), mounted Providing a driving force to the casing 2; the lawn mower 1 further comprises at least two cutting members 3, the cutting member 3 being driven by the cutting motor to perform the mowing work in rotation, wherein the cutting range of the at least two cutting members is along the casing 2 There is an overlap portion in the longitudinal direction, and the ratio of the longitudinal dimension L of the casing 2 to the lateral dimension W is less than 1.5.
切割马达收容于壳体2,驱动切割件3绕垂直轴旋转,执行割草工作。壳体2的纵向尺寸L为壳体2的前端至壳体2的后端之间的尺寸,壳体2的横向尺寸W为壳体2的左端至壳体2的右端之间的尺寸。The cutting motor is housed in the casing 2, and the cutting member 3 is driven to rotate about a vertical axis to perform a mowing operation. The longitudinal dimension L of the casing 2 is the dimension between the front end of the casing 2 to the rear end of the casing 2, and the lateral dimension W of the casing 2 is the dimension between the left end of the casing 2 to the right end of the casing 2.
图4是现有技术中割草机的结构图。割草机采用单个绕垂直轴旋转的切割件,在切割宽度一定的情况下,壳体的纵向尺寸远大于壳体的横向尺寸,使得割草机体积庞大,机身笨重,操作费力。4 is a structural view of a lawn mower in the prior art. The mower uses a single cutting member that rotates around the vertical axis. When the cutting width is constant, the longitudinal dimension of the casing is much larger than the lateral dimension of the casing, making the mower bulky, bulky, and laborious.
本实施例中,割草机1包括3个切割件,切割件3总的切割宽度与图4中单个切割件的切割宽度相同,各切割件的切割直径d远小于切割宽度D。本实施例中,3个切割件的切割范围沿壳体2的纵向有重叠部分,使得切割件3总的切割范围沿壳体2纵向的尺寸l远小于切割宽度D。从而使得壳体2在纵向上能够获得紧凑的结构,减小壳体2的体积,减轻割草机1的重量。In the present embodiment, the lawn mower 1 includes three cutting members, and the total cutting width of the cutting member 3 is the same as the cutting width of the single cutting member in FIG. 4, and the cutting diameter d of each cutting member is much smaller than the cutting width D. In the present embodiment, the cutting range of the three cutting members has an overlapping portion in the longitudinal direction of the casing 2, so that the total cutting range of the cutting member 3 is much smaller than the cutting width D along the longitudinal direction of the casing 2. Thereby, the housing 2 can obtain a compact structure in the longitudinal direction, reduce the volume of the housing 2, and reduce the weight of the lawn mower 1.
如图3所示,本实施例中,割草机1包括第一切割件301、第二切割件302、第三切割件303,第一切割件301和第二切割件302设置在壳体2的两侧,第三切割件303设置在第一切割件301和第二切割件302之间,且设置在第一切割件301和第二切割件302的前侧。本实施例中,各切割件具有相同的切割直径d。第一切割件301与第二切割件302关于纵轴线X-X对称设置在壳体2两侧,具体的,第一切割件301设置在壳体2右侧,第二切割件302设置在壳体2左侧。第三切割件303设置在纵轴线X-X上,切割直径d略大于第一切割件301与第二切割件302切割范围的间距Δw。切割宽度D为第一切割件301切 割范围的右端至第二切割件302切割范围的左端之间的距离。各切割件的切割直径d略大于切割宽度D的1/3。第三切割件303设置在第一切割件301与第二切割件302的前侧,第三切割件303在纵轴线X-X上越靠近第一切割件301与第二切割件302,各切割件总的切割范围沿壳体2纵向的尺寸l就越小。由于各切割件位于同一工作平面,第三切割303件的旋转中心至第一切割件301/第二切割件302的旋转中心的距离d1必须大于第三切割件303的切割半径与第一切割件301/第二切割件302的切割半径之和,以保证各切割件在工作过程中不相互干涉,保证割草机1的安全性。在d1达到最小值的情况下,第三切割件303的旋转中心与第一切割件301/第二切割件302的旋转中心沿壳体2纵向的距离d2达到最小值,即各切割件总的切割范围沿壳体2纵向的尺寸l达到最小值。本实施例中,该最小值小于切割宽度D的2/3。As shown in FIG. 3, in the present embodiment, the lawn mower 1 includes a first cutting member 301, a second cutting member 302, and a third cutting member 303. The first cutting member 301 and the second cutting member 302 are disposed on the housing 2. On both sides, a third cutting member 303 is disposed between the first cutting member 301 and the second cutting member 302 and disposed on the front side of the first cutting member 301 and the second cutting member 302. In this embodiment, each cutting member has the same cutting diameter d. The first cutting member 301 and the second cutting member 302 are symmetrically disposed on both sides of the housing 2 with respect to the longitudinal axis XX. Specifically, the first cutting member 301 is disposed on the right side of the housing 2, and the second cutting member 302 is disposed on the housing 2 Left side. The third cutting member 303 is disposed on the longitudinal axis X-X, and the cutting diameter d is slightly larger than the spacing Δw of the cutting range of the first cutting member 301 and the second cutting member 302. The cutting width D is the first cutting member 301 The distance from the right end of the cutting range to the left end of the cutting range of the second cutting member 302. The cutting diameter d of each cutting member is slightly larger than 1/3 of the cutting width D. The third cutting member 303 is disposed on the front side of the first cutting member 301 and the second cutting member 302. The third cutting member 303 is closer to the first cutting member 301 and the second cutting member 302 on the longitudinal axis XX, and the cutting members are generally The smaller the dimension l of the cutting range along the longitudinal direction of the casing 2 is. Since each cutting member is located at the same working plane, the distance d1 from the center of rotation of the third cutting 303 member to the center of rotation of the first cutting member 301 / the second cutting member 302 must be greater than the cutting radius of the third cutting member 303 and the first cutting member The sum of the cutting radii of the 301/second cutting member 302 is to ensure that the cutting members do not interfere with each other during the working process, and the safety of the lawn mower 1 is ensured. In the case where d1 reaches the minimum value, the rotation center of the third cutting member 303 and the rotation center of the first cutting member 301 / the second cutting member 302 in the longitudinal direction of the housing 2 reach a minimum value, that is, the total of each cutting member The cutting range reaches a minimum along the dimension l of the longitudinal direction of the housing 2. In this embodiment, the minimum value is less than 2/3 of the cutting width D.
本实施例中,割草机1包括2个前轮,分别设置在第三切割件303的两侧。如图3所示,割草机1包括第一前轮19和第二前轮21,对称设置在第三切割件303的两侧。具体的,第一前轮19位于第三切割件303的右侧、第一切割件301的前侧,在不与第一切割件301发生干涉的前提下,紧靠第一切割件301设置。第二前轮21位于第三切割件303的左侧、第二切割件302的前侧,在不与第二切割件302发生干涉的前提下,紧靠第二切割件302设置。前轮的设置使得壳体2能够进一步获得紧凑的结构。In this embodiment, the lawn mower 1 includes two front wheels, which are respectively disposed on both sides of the third cutting member 303. As shown in FIG. 3, the lawn mower 1 includes a first front wheel 19 and a second front wheel 21 symmetrically disposed on both sides of the third cutting member 303. Specifically, the first front wheel 19 is located on the right side of the third cutting member 303 and on the front side of the first cutting member 301, and is disposed adjacent to the first cutting member 301 without interfering with the first cutting member 301. The second front wheel 21 is located on the left side of the third cutting member 303 and on the front side of the second cutting member 302, and is disposed adjacent to the second cutting member 302 without interfering with the second cutting member 302. The arrangement of the front wheels enables the housing 2 to further obtain a compact structure.
本实施例中,采用切割直径d为190mm的切割件3,并使得割草机1的切割宽度D为560mm,壳体2的横向尺寸W不小于560mm,本实施例中,将壳体2的横向尺寸W设置为580mm。本实施例中,d1的范围为190-394mm,具体的,将d1的值设置为220mm;d2的范围为43-348mm,具体的,d2的值被设置为119mm;切割范围沿壳体2纵向的尺寸l的范围为235-538mm,具体的,l的值被设置为309mm;壳体2的纵向尺寸L的范围为567-870mm,具体的,L的值为639mm;因此,壳体2的纵向尺寸L与壳体2的横向尺寸W的比值在0.98-1.5之间,具体的,L/W的值为1.10。表1列出了本实施例中其他几组参数值。本实施例中,壳体2在纵向上具有紧凑的结构,减小了割草机1的体积,减轻了割草机1的重量,使得用户操作省力。In this embodiment, the cutting member 3 having a cutting diameter d of 190 mm is used, and the cutting width D of the lawn mower 1 is 560 mm, and the lateral dimension W of the casing 2 is not less than 560 mm. In this embodiment, the housing 2 is The lateral dimension W is set to 580 mm. In this embodiment, the range of d1 is 190-394 mm, specifically, the value of d1 is set to 220 mm; the range of d2 is 43-348 mm, specifically, the value of d2 is set to 119 mm; the cutting range is along the longitudinal direction of the casing 2. The dimension l ranges from 235 to 538 mm. Specifically, the value of l is set to 309 mm; the longitudinal dimension L of the casing 2 ranges from 567 to 870 mm, and specifically, the value of L is 639 mm; therefore, the housing 2 The ratio of the longitudinal dimension L to the lateral dimension W of the casing 2 is between 0.98 and 1.5. Specifically, the L/W value is 1.10. Table 1 lists the other sets of parameter values in this embodiment. In the present embodiment, the casing 2 has a compact structure in the longitudinal direction, which reduces the volume of the lawn mower 1, reduces the weight of the lawn mower 1, and makes the user's operation labor-saving.
表1 Table 1
  d(mm)d(mm) d1(mm)D1(mm) d2(mm)D2(mm) D(mm)D(mm) l(mm)l(mm) L(mm)L(mm) W(mm)W(mm) L/WL/W
一组A group 190190 214214 103103 560560 293293 580580 580580 11
二组Two groups 190190 254254 174174 560560 364364 696696 580580 1.21.2
三组Three groups 190190 394394 348348 560560 538538 870870 580580 1.51.5
图5是本发明的第三实施例的割草机1结构图,割草机1的结构与第二实施例的主要结构基本一致,差异在于,第三切割件303的切割直径d’小于第一切割件301和/或第二切割件302的切割直径d”。在保持切割宽度D不变的情况下,减小第三切割件303的切割直径d’,相应增大第一切割件301和第二切割件302的切割直径d”。具体的,将第三切割件303的切割直径d’设置为150mm,第一切割件301、第二切割件302的切割直径d”设置为210mm;d1的范围为180-385mm,具体的,将d1的值设置为212mm;d2的范围为42-342mm,具体的,d2的值被设置为119mm;切割范围沿壳体2纵向的尺寸l的范围为221-522mm,具体的,l的值被设置为299mm;壳体2的纵向尺寸L的范围为545-870mm,具体的,L的值为621mm;壳体2的横向尺寸W为580mm;因此,壳体2的纵向尺寸L与壳体2的横向尺寸W的比值在0.94-1.5之间,具体的,L/W的值为1.07。表2列出了本实施例中其他几组参数值。使第三切割件303的切割直径d’小于第一切割件301、第二切割件302的切割直径d”,能够进一步减小切割范围沿壳体2纵向的尺寸l,使壳体2结构更紧凑,割草机1体积更小,重量更轻,用户操作更省力。5 is a structural view of a lawn mower 1 according to a third embodiment of the present invention, and the structure of the lawn mower 1 is substantially identical to that of the second embodiment, with the difference that the cutting diameter d' of the third cutting member 303 is smaller than that of the third embodiment. The cutting diameter d" of one cutting member 301 and/or the second cutting member 302. In the case where the cutting width D is kept constant, the cutting diameter d' of the third cutting member 303 is reduced, and the first cutting member 301 is correspondingly enlarged. And a cutting diameter d" of the second cutting member 302. Specifically, the cutting diameter d' of the third cutting member 303 is set to 150 mm, the cutting diameter d" of the first cutting member 301 and the second cutting member 302 is set to 210 mm; and the range of d1 is 180-385 mm, specifically, The value of d1 is set to 212 mm; the range of d2 is 42-342 mm, specifically, the value of d2 is set to 119 mm; the range of the cutting range along the longitudinal direction of the housing 2 is 221-522 mm, specifically, the value of l is Set to 299 mm; the longitudinal dimension L of the housing 2 ranges from 545 to 870 mm, specifically, the value of L is 621 mm; the lateral dimension W of the housing 2 is 580 mm; therefore, the longitudinal dimension L of the housing 2 and the housing 2 The ratio of the lateral dimension W is between 0.94 and 1.5, and specifically, the value of L/W is 1.07. Table 2 lists the other sets of parameter values in this embodiment. The cutting diameter d' of the third cutting member 303 is made. Less than the cutting diameter d" of the first cutting member 301 and the second cutting member 302, the size l of the cutting range along the longitudinal direction of the casing 2 can be further reduced, so that the structure of the casing 2 is more compact, and the mower 1 is smaller in size and weight. Lighter, user operation is more labor-saving.
表2Table 2
Figure PCTCN2016110421-appb-000001
Figure PCTCN2016110421-appb-000001
Figure PCTCN2016110421-appb-000002
Figure PCTCN2016110421-appb-000002
如图1,本发明的第四实施例中,割草机1的结构与第二实施例的主要结构基本一致,差异在于,割草机1包括3个切割件3,第一切割件301和第二切割件302设置在壳体2的两侧,第三切割件303设置在第一切割件301和第二切割件302之间,且设置在第一切割件301和第二切割件302的后侧。如图1所示,第三切割件303设置在第一切割件301与第二切割件302的后侧,第三切割件303在纵轴线X-X上越靠近第一切割件301与第二切割件302,各切割件总的切割范围沿壳体纵向的尺寸l就越小。由于各切割件位于同一工作平面,第三切割件303的旋转中心至第一切割件301/第二切割件302的旋转中心的距离d3必须大于第三切割件303的切割半径与第一切割件301/第二切割件302的切割半径之和,以保证各切割件在工作过程中不相互干涉,保证割草机1的安全性。在d3达到最小值的情况下,第三切割件303的旋转中心与第一切割件301/第二切割件302的旋转中心沿壳体2纵向的距离d4达到最小值,即各切割件总的切割范围沿壳体纵向的尺寸l达到最小值。本实施例中,该最小值小于切割宽度D的2/3。本实施例中,第三切割件303设置在第一切割件301和第二切割件302的后侧,具体的,设置在第一切割件301、第二切割件302与后轮组件之间形成的收容空间内,与第一实施例中的结构相比,切割范围的前端与壳体后端的距离得到了减小,从而使得壳体2的纵向尺寸L得到了减小。As shown in Fig. 1, in the fourth embodiment of the present invention, the structure of the lawn mower 1 is basically the same as that of the second embodiment, with the difference that the lawn mower 1 includes three cutting members 3, a first cutting member 301 and The second cutting member 302 is disposed on both sides of the housing 2, and the third cutting member 303 is disposed between the first cutting member 301 and the second cutting member 302, and disposed at the first cutting member 301 and the second cutting member 302 Back side. As shown in FIG. 1, the third cutting member 303 is disposed on the rear side of the first cutting member 301 and the second cutting member 302, and the third cutting member 303 is closer to the first cutting member 301 and the second cutting member 302 on the longitudinal axis XX. The smaller the cutting range of each cutting member along the longitudinal direction of the housing is smaller. Since each cutting member is located at the same working plane, the distance d3 from the center of rotation of the third cutting member 303 to the center of rotation of the first cutting member 301 / the second cutting member 302 must be greater than the cutting radius of the third cutting member 303 and the first cutting member. The sum of the cutting radii of the 301/second cutting member 302 is to ensure that the cutting members do not interfere with each other during the working process, and the safety of the lawn mower 1 is ensured. In the case where d3 reaches the minimum value, the center of rotation of the third cutting member 303 and the center of rotation of the first cutting member 301 / the second cutting member 302 in the longitudinal direction of the housing 2 reach a minimum value, that is, the total of each cutting member The cutting range reaches a minimum along the dimension l of the longitudinal direction of the housing. In this embodiment, the minimum value is less than 2/3 of the cutting width D. In this embodiment, the third cutting member 303 is disposed on the rear side of the first cutting member 301 and the second cutting member 302, and specifically, is disposed between the first cutting member 301, the second cutting member 302 and the rear wheel assembly. In the accommodating space, the distance between the front end of the cutting range and the rear end of the casing is reduced as compared with the structure in the first embodiment, so that the longitudinal dimension L of the casing 2 is reduced.
本实施例中,割草机1包括1个前轮23,设置在第一切割件301和第二切割件302之间。如图1所示,前轮23设置在第一切割件301与第二切割件302之间、第三切割件303前侧,在不与第三切割件303发生干涉的前提下,紧靠第三切割件303设置。将前轮23设置在第一切割件301、第二切割件302和第三切割件303形成的收容空间内,使得壳体2具有紧凑的结构,进一步减小壳体2沿纵向的尺寸。In the present embodiment, the lawn mower 1 includes a front wheel 23 disposed between the first cutting member 301 and the second cutting member 302. As shown in FIG. 1 , the front wheel 23 is disposed between the first cutting member 301 and the second cutting member 302 and on the front side of the third cutting member 303, and does not interfere with the third cutting member 303, and is close to the first The three cutting members 303 are disposed. The front wheel 23 is disposed in the housing space formed by the first cutting member 301, the second cutting member 302, and the third cutting member 303, so that the housing 2 has a compact structure, further reducing the dimension of the housing 2 in the longitudinal direction.
本实施例中,采用切割直径d为190mm的切割件3,并使得割草机1的切割宽度D为560mm,壳体2的横向尺寸W不小于560mm,本实施例中,将壳体2的横向尺寸W设置为580mm。本实施例中,d3的范围为190-479mm,具体的,将d3的值设置为220mm;d4的范围为43-442mm,具体的,d4的值被设置为119mm;切割范围沿壳体纵向的尺寸l的范围为235-634mm,具体的, l的值被设置为309mm;壳体2的纵向尺寸L的范围为492-870mm,具体的,L的值为515mm;因此,壳体2的纵向尺寸L与壳体2的横向尺寸W的比值在0.85-1.5之间,具体的,L/W的值为0.89。表3列出了本实施例中其他几组参数值。与第一实施例相比,本实施例中,切割件3的设置在保证切割件3与壳体2上的其他部分,如前轮23和后轮组件等,不发生干涉的同时,大大地减小了壳体2的纵向尺寸L,从而减小了壳体2纵向尺寸L与横向尺寸W的比值,实现了壳体2纵向尺寸L与横向尺寸W的比值小于1。割草机1的壳体2具有更加紧凑的结构,使得割草机1体积更小,重量更轻,用户操作更省力。In this embodiment, the cutting member 3 having a cutting diameter d of 190 mm is used, and the cutting width D of the lawn mower 1 is 560 mm, and the lateral dimension W of the casing 2 is not less than 560 mm. In this embodiment, the housing 2 is The lateral dimension W is set to 580 mm. In this embodiment, the range of d3 is 190-479 mm, specifically, the value of d3 is set to 220 mm; the range of d4 is 43-442 mm, specifically, the value of d4 is set to 119 mm; the cutting range is along the longitudinal direction of the casing. The size l ranges from 235 to 634 mm, specifically, The value of l is set to 309 mm; the longitudinal dimension L of the casing 2 ranges from 492 to 870 mm, specifically, the value of L is 515 mm; therefore, the ratio of the longitudinal dimension L of the casing 2 to the lateral dimension W of the casing 2 Between 0.85 and 1.5, specifically, the value of L/W is 0.89. Table 3 lists the other sets of parameter values in this embodiment. Compared with the first embodiment, in the present embodiment, the cutting member 3 is disposed on the other parts of the casing 3 and the casing 2, such as the front wheel 23 and the rear wheel assembly, without interference. The longitudinal dimension L of the casing 2 is reduced, thereby reducing the ratio of the longitudinal dimension L of the casing 2 to the transverse dimension W, achieving a ratio of the longitudinal dimension L of the casing 2 to the transverse dimension W of less than one. The housing 2 of the lawn mower 1 has a more compact structure, so that the lawn mower 1 is smaller in size, lighter in weight, and less user-operated.
表3table 3
  d(mm)d(mm) d3(mm)D3(mm) d4(mm)D4(mm) D(mm)D(mm) l(mm)l(mm) L(mm)L(mm) W(mm)W(mm) L/WL/W
一组A group 190190 223223 124124 560560 316316 522522 580580 0.90.9
二组Two groups 190190 255255 175175 560560 367367 580580 580580 11
三组Three groups 190190 346346 292292 560560 484484 696696 580580 1.21.2
图6为本发明的第五实施例的割草机1结构图,割草机1的结构与第四实施例的主要结构基本一致,差异在于,第三切割件303的切割直径小于第一切割件301和/或第二切割件302的切割直径。在保持切割宽度D不变的情况下,减小第三切割件303的切割直径,相应增大第一切割件301和第二切割件302的切割直径。具体的,将第三切割件303的切割直径d’设置为150mm,第一切割件301、第二切割件302的切割直径d”设置为210mm;d3的范围为180-508mm,具体的,将d3的值设置为212mm;d4的范围为41-477mm,具体的,d4的值被设置为119mm;切割范围沿壳体2纵向的尺寸l的范围为221-656mm,具体的,l的值被设置为299mm;壳体2的纵向尺寸L的范围为484-870mm,具体的,L的值为513mm;壳体2的横向尺寸W为580mm;因此,壳体2的纵向尺寸与壳体2的横向尺寸的比值在0.83-1.5之间,具体的,L/W的值为0.88。表4列出了本实施例中其他几组参数值。使第三切割件303的切割直径小于第一切割件301、第二切割件302的切割直径,能够进一步减小切割范围沿壳体2纵向的尺寸l,使壳体2结构更紧凑,割草机1体积更小,重量更轻,用户操作更省力。6 is a structural view of a lawn mower 1 according to a fifth embodiment of the present invention, and the structure of the lawn mower 1 is substantially the same as that of the fourth embodiment, with the difference that the cutting diameter of the third cutting member 303 is smaller than the first cutting. The cutting diameter of the piece 301 and/or the second cutting piece 302. In the case where the cutting width D is kept constant, the cutting diameter of the third cutting member 303 is reduced, and the cutting diameters of the first cutting member 301 and the second cutting member 302 are correspondingly increased. Specifically, the cutting diameter d' of the third cutting member 303 is set to 150 mm, the cutting diameter d" of the first cutting member 301 and the second cutting member 302 is set to 210 mm; and the range of d3 is 180-508 mm, specifically, The value of d3 is set to 212 mm; the range of d4 is 41-477 mm, specifically, the value of d4 is set to 119 mm; the range of the cutting range along the longitudinal direction of the housing 2 is 221-656 mm, specifically, the value of l is Set to 299 mm; the longitudinal dimension L of the housing 2 ranges from 484 to 870 mm, specifically, the value of L is 513 mm; the lateral dimension W of the housing 2 is 580 mm; therefore, the longitudinal dimension of the housing 2 and the housing 2 The ratio of the lateral dimensions is between 0.83 and 1.5, and specifically, the value of L/W is 0.88. Table 4 lists the other sets of parameter values in this embodiment, so that the cutting diameter of the third cutting member 303 is smaller than the first cutting. The cutting diameter of the piece 301 and the second cutting piece 302 can further reduce the dimension l of the cutting range along the longitudinal direction of the casing 2, so that the structure of the casing 2 is more compact, the mower 1 is smaller in size, lighter in weight, and more user-operated. Labor saving.
表4 Table 4
Figure PCTCN2016110421-appb-000003
Figure PCTCN2016110421-appb-000003
本发明的另一实施例中,割草机1的结构与第二实施例的主要结构基本一致,差异在于,割草机1包括至少3个切割马达,切割马达与切割件3一一对应地连接。具体的,割草机1包括3个切割马达,分别驱动第一切割件301、第二切割件302和第三切割件303。与图4中的切割件相比,本实施例中,各切割件的切割直径小,驱动各切割件所需的输出功率小,因此,当各切割件使用独立的切割马达驱动时,各切割马达的体积小、重量轻。本实施中,3个切割马达的总重量小于使用单个切割马达驱动切割件时切割马达的重量,因此,割草机1的重量得到了减小。此外,本实施例中,驱动各切割件的切割马达的输出功率小,因此成本低,3个切割马达的总成本低于使用单个切割马达驱动切割件时切割马达的成本,因此采用独立的切割马达驱动切割件时,能够降低割草机1的成本。In another embodiment of the present invention, the structure of the lawn mower 1 is substantially identical to the main structure of the second embodiment, with the difference that the lawn mower 1 includes at least three cutting motors, and the cutting motor is in one-to-one correspondence with the cutting member 3. connection. Specifically, the lawn mower 1 includes three cutting motors that drive the first cutting member 301, the second cutting member 302, and the third cutting member 303, respectively. Compared with the cutting member in FIG. 4, in the embodiment, the cutting diameter of each cutting member is small, and the output power required for driving each cutting member is small, and therefore, when each cutting member is driven by a separate cutting motor, each cutting is performed. The motor is small and lightweight. In the present embodiment, the total weight of the three cutting motors is smaller than the weight of the cutting motor when the cutting member is driven by a single cutting motor, and therefore, the weight of the lawn mower 1 is reduced. Further, in the present embodiment, the cutting motor for driving each cutting member has a small output power, and thus the cost is low, and the total cost of the three cutting motors is lower than the cost of cutting the motor when the cutting member is driven by a single cutting motor, so that independent cutting is employed. When the motor drives the cutting member, the cost of the lawn mower 1 can be reduced.
如图3,本发明的第六实施例中,割草机1包括:壳体2;轮组,安装于壳体2的底盘上,包括前轮和后轮;切割马达(图未示),安装于壳体2,提供驱动力;至少2个切割件3,由切割马达驱动以旋转执行割草工作;切割件3交错排列,切割件3切割范围的最前端与割草机1的最前端的距离Δd不超过100mm。本实施例中,前轮至少部分位于切割件3切割范围的最前端之后,具体的,前轮的前端超过切割件3切割范围的最前端的距离不大于80mm。As shown in FIG. 3, in a sixth embodiment of the present invention, the lawn mower 1 includes: a casing 2; a wheel set mounted on the chassis of the casing 2, including a front wheel and a rear wheel; and a cutting motor (not shown), Mounted in the casing 2 to provide driving force; at least two cutting members 3, driven by a cutting motor to perform mowing work in rotation; the cutting members 3 are staggered, and the cutting edge 3 is at the forefront of the cutting range and the front end of the mower 1 The distance Δd does not exceed 100 mm. In this embodiment, the front wheel is at least partially located at the foremost end of the cutting range of the cutting member 3. Specifically, the front end of the front wheel exceeds the foremost end of the cutting range of the cutting member 3 by a distance of not more than 80 mm.
如图3所示,壳体2的底盘上安装有切割件3和轮组。切割件3由收容于壳体2的切割马达驱动,以旋转执行割草工作。轮组包括前轮,安装在壳体2的前部。前轮越靠近切割件3设置,切割范围的最前端与割草机1的最前端之 间的距离Δd就越小。当割草机1遇到墙体、角落等边缘时,割草机1将达到极限切割位置,割草机1的切割范围因切割件3切割范围的最前端与割草机1的最前端之间的距离Δd而受到限制,切割件3切割范围的最前端与割草机1的最前端之间的距离Δd越小,割草机1的切割范围就越靠近边缘,对靠近边缘的草的切割效果就越好。As shown in FIG. 3, the cutting member 3 and the wheel set are mounted on the chassis of the casing 2. The cutting member 3 is driven by a cutting motor housed in the casing 2 to perform a mowing operation in rotation. The wheel set includes a front wheel that is mounted at the front of the housing 2. The front wheel is placed closer to the cutting member 3, and the front end of the cutting range and the front end of the lawn mower 1 The distance Δd between them is smaller. When the lawn mower 1 encounters an edge of a wall, a corner, etc., the lawn mower 1 will reach the limit cutting position, and the cutting range of the lawn mower 1 is the front end of the cutting range of the cutting member 3 and the front end of the lawn mower 1 The distance Δd between them is limited, and the smaller the distance Δd between the foremost end of the cutting range of the cutting member 3 and the foremost end of the lawn mower 1, the closer the cutting range of the lawn mower 1 is to the edge, the grass close to the edge The better the cutting effect.
在采用单个切割件的割草机中,例如图4所示的割草机,为避免前轮与切割件发生干涉,前轮的安装位置与切割件的切割范围之间的距离受到限制,导致切割范围的最前端与割草机的最前端之间的距离过大,当割草机切割边角时,切割效果差。In a lawn mower using a single cutting member, such as the lawn mower shown in FIG. 4, in order to avoid interference between the front wheel and the cutting member, the distance between the mounting position of the front wheel and the cutting range of the cutting member is limited, resulting in The distance between the front end of the cutting range and the front end of the mower is too large, and the cutting effect is poor when the mower cuts the corners.
本实施例中,割草机1包括3个切割件,切割件3在壳体2上交错排列,使得前轮能够靠近切割件3设置,具体的,切割件3前后交错排列,在切割范围的前部形成能够至少部分收容前轮的空间,即前轮至少部分位于切割件3切割范围的最前端之后。In this embodiment, the lawn mower 1 includes three cutting members, and the cutting members 3 are staggered on the casing 2 so that the front wheels can be disposed adjacent to the cutting member 3. Specifically, the cutting members 3 are staggered in front and rear, in the cutting range. The front portion forms a space capable of at least partially receiving the front wheel, that is, the front wheel is at least partially located behind the foremost end of the cutting range of the cutting member 3.
本实施例中,割草机包括第一切割件301,第二切割件302和第三切割件303,第一切割件301和第二切割件302设置在壳体2两侧,第三切割件303设置在第一切割件301和第二切割件302之间,且设置在第一切割件301和第二切割件302的前侧;割草机1包括2个前轮,分别设置在第三切割件303的两侧。如图3所示,第一切割件301与第二切割件302关于纵轴线X-X对称设置在壳体2两侧,具体的,第一切割件301设置在壳体2的右侧,第二切割件302设置在壳体2的左侧。第三切割件303设置在纵轴线X-X上,设置在第一切割件301与第二切割件302的前侧,第三切割件303切割范围的最前端即割草机1切割范围的最前端。第一前轮19设置在第三切割件303的右侧、第一切割件301的前侧,在不与第一切割件301发生干涉的前提下,紧靠第一切割件301设置。第二前轮21设置在第三切割件303的左侧、第二切割件302的前侧,在不与第二切割件302发生干涉的前提下,紧靠第二切割件302设置。本实施例中,前轮为万向轮,第一前轮的枢转中心A1和第二前轮的枢转中心A2的安装位置不超过切割范围的最前端,割草机1在前进状态下,前轮部分位于切割范围的最前端之后,切割范围的最前端与割草机1的最前端的距离Δd不超过100mm。本实施例中,切割范围的最前端与割草机1的最前端的距离Δd可以 为60mm,45mm,35mm或26mm,具体的,本实施例中,切割范围的最前端与割草机1的最前端的距离Δd为26mm。割草机1在前进状态下,前轮的前端超过切割范围的最前端的距离不超过80mm。本实施例中,前轮的前端超过切割范围的最前端的距离可以为40mm,30mm,25mm或18mm,具体的,本实施例中,前轮的前端超过切割范围的最前端的距离为18mm。因此,当割草机1遇到墙体、角落等边缘时,能够切割到距离边角很近的草,使得割草机1能够有效的切割到边。In this embodiment, the lawn mower includes a first cutting member 301, a second cutting member 302 and a third cutting member 303. The first cutting member 301 and the second cutting member 302 are disposed on both sides of the housing 2, and the third cutting member 303 is disposed between the first cutting member 301 and the second cutting member 302 and disposed on the front side of the first cutting member 301 and the second cutting member 302; the lawn mower 1 includes two front wheels, respectively disposed in the third Both sides of the cutting member 303. As shown in FIG. 3, the first cutting member 301 and the second cutting member 302 are symmetrically disposed on both sides of the housing 2 with respect to the longitudinal axis XX. Specifically, the first cutting member 301 is disposed on the right side of the housing 2, and the second cutting is performed. The piece 302 is disposed on the left side of the housing 2. The third cutting member 303 is disposed on the longitudinal axis X-X, and is disposed on the front side of the first cutting member 301 and the second cutting member 302, and the foremost end of the cutting range of the third cutting member 303 is the foremost end of the cutting range of the lawn mower 1. The first front wheel 19 is disposed on the right side of the third cutting member 303, on the front side of the first cutting member 301, and is disposed adjacent to the first cutting member 301 without interfering with the first cutting member 301. The second front wheel 21 is disposed on the left side of the third cutting member 303 and on the front side of the second cutting member 302, and is disposed adjacent to the second cutting member 302 without interfering with the second cutting member 302. In this embodiment, the front wheel is a universal wheel, and the installation position of the pivot center A1 of the first front wheel and the pivot center A2 of the second front wheel does not exceed the front end of the cutting range, and the lawn mower 1 is in the forward state. After the front wheel portion is located at the foremost end of the cutting range, the distance Δd between the foremost end of the cutting range and the foremost end of the lawn mower 1 does not exceed 100 mm. In this embodiment, the distance Δd between the foremost end of the cutting range and the foremost end of the lawn mower 1 may be It is 60 mm, 45 mm, 35 mm or 26 mm. Specifically, in the present embodiment, the distance Δd between the foremost end of the cutting range and the foremost end of the lawn mower 1 is 26 mm. When the lawn mower 1 is in the forward state, the front end of the front wheel exceeds the foremost end of the cutting range by a distance of not more than 80 mm. In this embodiment, the front end of the front wheel exceeds the foremost end of the cutting range by a distance of 40 mm, 30 mm, 25 mm or 18 mm. Specifically, in the embodiment, the front end of the front wheel exceeds the foremost end of the cutting range by a distance of 18 mm. Therefore, when the lawn mower 1 encounters an edge such as a wall, a corner, or the like, it is possible to cut the grass close to the corner, so that the lawn mower 1 can be effectively cut to the side.
如图1,本发明的第七实施例中,割草机1的结构与第六实施例中的主要结构基本一致,差异在于,第一切割件301和第二切割件302设置在壳体2两侧,第三切割件303设置在第一切割件301和第二切割件302之间,且设置在第一切割件301和第二切割件302的后侧;割草机1包括1个前轮23,设置在第一切割件301和第二切割件302之间。As shown in Fig. 1, in the seventh embodiment of the present invention, the structure of the lawn mower 1 is substantially the same as that of the sixth embodiment, with the difference that the first cutting member 301 and the second cutting member 302 are disposed in the casing 2. On both sides, a third cutting member 303 is disposed between the first cutting member 301 and the second cutting member 302 and disposed on the rear side of the first cutting member 301 and the second cutting member 302; the lawn mower 1 includes one front The wheel 23 is disposed between the first cutting member 301 and the second cutting member 302.
如图1所示,第一切割件301与第二切割件302关于纵轴线X-X对称设置在壳体2两侧,具体的,第一切割件301设置在壳体2的右侧,第二切割件302设置在壳体2的左侧。第三切割件303设置在纵轴线X-X上,设置在第一切割件301与第二切割件302的后侧。第一切割件301和第二切割件302切割范围的最前端共同构成了割草机1切割范围的最前端。前轮23设置在第一切割件301与第二切割件302之间、第三切割件303前侧,在不与第三切割件303发生干涉的前提下,紧靠第三切割件303设置。本实施例中,通过适当增大第三切割件303与第一切割件301、第二切割件302之间的距离,可使前轮23大体上位于第一切割件301、第二切割件302和第三切割件303形成的收容空间内。切割范围的最前端与割草机1的最前端之间的距离Δd能够进一步减小。本实施例中,切割范围的最前端与割草机1的最前端之间的距离Δd可以为60mm,30mm,25mm或22mm,具体的,本实施例中,切割范围的最前端与割草机1的最前端之间的距离Δd为22mm。割草机1在前进状态下,前轮的前端超过切割范围的最前端的距离可以为40mm,25mm,20mm或15mm,具体的,本实施例中,割草机1在前进状态下,前轮的前端超过切割范围的最前端的距离为15mm。当割草机1遇到边缘时,例如遇到墙体时,割草机1的最前端与墙体发生接触,割草机1达到极限切割位置,此时,第一切割件301、第二切割件302 能够切割到距离墙体22mm左右处的草,对靠近边缘的草的切割效果好。As shown in FIG. 1 , the first cutting member 301 and the second cutting member 302 are symmetrically disposed on both sides of the housing 2 with respect to the longitudinal axis XX. Specifically, the first cutting member 301 is disposed on the right side of the housing 2, and the second cutting is performed. The piece 302 is disposed on the left side of the housing 2. The third cutting member 303 is disposed on the longitudinal axis X-X and disposed on the rear side of the first cutting member 301 and the second cutting member 302. The forefront of the cutting range of the first cutting member 301 and the second cutting member 302 together constitutes the forefront of the cutting range of the lawn mower 1. The front wheel 23 is disposed between the first cutting member 301 and the second cutting member 302 and on the front side of the third cutting member 303, and is disposed adjacent to the third cutting member 303 without interfering with the third cutting member 303. In this embodiment, by appropriately increasing the distance between the third cutting member 303 and the first cutting member 301 and the second cutting member 302, the front wheel 23 can be substantially located at the first cutting member 301 and the second cutting member 302. And a receiving space formed by the third cutting member 303. The distance Δd between the foremost end of the cutting range and the foremost end of the lawn mower 1 can be further reduced. In this embodiment, the distance Δd between the foremost end of the cutting range and the foremost end of the lawn mower 1 may be 60 mm, 30 mm, 25 mm or 22 mm. Specifically, in the present embodiment, the front end of the cutting range and the lawn mower The distance Δd between the foremost ends of 1 is 22 mm. In the forward state, the front end of the front wheel exceeds the foremost end of the cutting range by a distance of 40 mm, 25 mm, 20 mm or 15 mm. Specifically, in this embodiment, the lawn mower 1 is in the forward state, the front wheel The front end exceeds the front end of the cutting range by a distance of 15 mm. When the lawn mower 1 encounters the edge, for example, when the wall is encountered, the front end of the lawn mower 1 comes into contact with the wall, and the lawn mower 1 reaches the limit cutting position. At this time, the first cutting member 301, the second Cutting member 302 It can cut the grass about 22mm away from the wall and has a good cutting effect on the grass near the edge.
本实施例中,第一切割件301和第二切割件302切割范围的最前端共同构成割草机1切割范围的最前端,第一切割件301和第二切割件302均能够切割到靠近边缘的草,相比于第六实施例中,仅第三切割件303能够切割到靠近边缘的草,本实施例中切割件3在边缘附近的切割范围更大,对靠近边缘的草切割效果更好,割草机1能够更好的切割到边。In the present embodiment, the forefronts of the cutting range of the first cutting member 301 and the second cutting member 302 together constitute the foremost end of the cutting range of the lawn mower 1, and both the first cutting member 301 and the second cutting member 302 can be cut to the edge. Compared with the sixth embodiment, only the third cutting member 303 can cut the grass near the edge. In the present embodiment, the cutting member 3 has a larger cutting range near the edge, and the cutting effect on the grass near the edge is more. Well, the mower 1 can cut to the side better.
如图3,本发明另一个实施例中的割草机1包括壳体2、切割件3及切割马达(图未示)。As shown in Fig. 3, a lawn mower 1 in another embodiment of the present invention includes a housing 2, a cutting member 3, and a cutting motor (not shown).
割草机1置于地面上,以垂直于地面的方向为垂直方向,以平行于割草机1前进方向的方向为割草机1的纵向,垂直于割草机1前进方向的方向为割草机1的横向。以图纸的上方为割草机1的右侧,图纸的下方为割草机1的左侧。The lawn mower 1 is placed on the ground in a direction perpendicular to the ground, in a direction parallel to the direction in which the lawn mower 1 advances, in the longitudinal direction of the lawn mower 1, and in a direction perpendicular to the forward direction of the lawn mower 1 The horizontal direction of the grass machine 1. The top of the drawing is the right side of the mower 1, and the bottom of the drawing is the left side of the mower 1.
切割马达(图未示)安装于壳体2,用于提供驱动力。切割件3为多个,且多个切割件3由切割马达驱动以旋转执行割草工作。A cutting motor (not shown) is mounted to the housing 2 for providing a driving force. There are a plurality of cutting members 3, and the plurality of cutting members 3 are driven by a cutting motor to rotate to perform a mowing operation.
在本实施例中,割草机1包括电池包(图未示),为割草机1的工作提供电能。电池包可以为磷酸铁锂电池、锂电池等,并与切割马达电连接,从而为切割马达供能。In the present embodiment, the lawn mower 1 includes a battery pack (not shown) that provides electrical energy for the operation of the lawn mower 1. The battery pack can be a lithium iron phosphate battery, a lithium battery, etc., and is electrically connected to the cutting motor to power the cutting motor.
在本实施例中,割草机1包括多个切割马达,切割马达与切割件3一一对应地连接。In the present embodiment, the lawn mower 1 includes a plurality of cutting motors, and the cutting motors are coupled to the cutting members 3 in one-to-one correspondence.
通过多个切割马达分别驱动多个切割件3,可降低单个切割马达的功率,从而减小单个切割马达的体积。同时,多个切割马达可分布式安装在壳体2上,从而能有效利用壳体2的间隙及空间,使得壳体2内元件的排列更紧凑,进而减小割草机1的体积。By driving a plurality of cutting members 3 by a plurality of cutting motors, the power of a single cutting motor can be reduced, thereby reducing the volume of a single cutting motor. At the same time, a plurality of cutting motors can be distributedly mounted on the casing 2, so that the gap and space of the casing 2 can be effectively utilized, so that the arrangement of the components in the casing 2 is more compact, thereby reducing the volume of the lawn mower 1.
至少其中两个切割件3的切割范围沿壳体2的纵向有重叠部分,使得割草机1的总输出功率与割草机1的体积的比值大于等于6kW/m3The cutting range of at least two of the cutting members 3 has an overlapping portion in the longitudinal direction of the casing 2 such that the ratio of the total output power of the lawn mower 1 to the volume of the lawn mower 1 is 6 kW/m 3 or more .
具体在本实施例中,割草机1的总输出功率是单个切割马达输出功率之和。此外,割草机1可以是手推割草机.针对手推割草机,割草机1的体积指的是割草机1手柄折叠后的折叠体积。Specifically in the present embodiment, the total output power of the lawn mower 1 is the sum of the output powers of the individual cutting motors. Further, the lawn mower 1 may be a hand-push lawn mower. For the hand-held lawn mower, the volume of the lawn mower 1 refers to the folded volume of the lawn mower 1 after folding.
由于割草机1采用多个分立的切割件3代替传统的单切割件。与传统的割草机相比,在功率相同时体积显著减小。因此,割草机1可有效降低体积功率 比。Since the lawn mower 1 employs a plurality of discrete cutting members 3 instead of the conventional single cutting members. Compared to conventional lawn mowers, the volume is significantly reduced at the same power. Therefore, the mower 1 can effectively reduce the volume power ratio.
其中,下表5为本实施例中割草机1在不同功率要求下,且为不同体积时,功率与体积的比值。Among them, the following table 5 is the ratio of power to volume of the lawn mower 1 under different power requirements and different volumes in the present embodiment.
表5table 5
Figure PCTCN2016110421-appb-000004
Figure PCTCN2016110421-appb-000004
而对于传统的单切割件割草机,其体积通常为021m3,功率1.5KW,质量为25kg。功率体积比7.14kW/m3,功率质量比为0.06kW/kg。从表1可知,当割草机1的功率接近传统割草机时,其功率与体积比远大于传统割草机的功率与体积比。进一步的,在本实施例中,割草机1的总输出功率与割草机1的体积的比值大于等于7.5kW/m3For a conventional single-cutter mower, the volume is usually 021 m 3 , the power is 1.5 KW, and the mass is 25 kg. The power to volume ratio is 7.14 kW/m 3 and the power to mass ratio is 0.06 kW/kg. It can be seen from Table 1 that when the power of the lawn mower 1 is close to that of the conventional lawn mower, the power to volume ratio is much larger than the power and volume ratio of the conventional lawn mower. Further, in the present embodiment, the ratio of the total output power of the lawn mower 1 to the volume of the lawn mower 1 is 7.5 kW/m 3 or more .
在本实施例中,割草机1的体积小于等于0.16m3In the present embodiment, the volume of the lawn mower 1 is 0.16 m 3 or less.
在本实施例中,割草机1的总输出功率大于等于1kW。In the present embodiment, the total output power of the lawn mower 1 is greater than or equal to 1 kW.
其中,下表6为本实施例中割草机1在不同功率要求下,且为不同质量时,功率与质量的比值。Among them, the following table 6 is the ratio of power to mass of the lawn mower 1 under different power requirements and different masses in the present embodiment.
表6Table 6
Figure PCTCN2016110421-appb-000005
Figure PCTCN2016110421-appb-000005
Figure PCTCN2016110421-appb-000006
Figure PCTCN2016110421-appb-000006
从表6可知,当割草机1的功率接近传统割草机时,其功率与质量比远大于传统割草机的功率与质量比。It can be seen from Table 6 that when the power of the lawn mower 1 is close to that of the conventional lawn mower, the power to mass ratio is much larger than that of the conventional lawn mower.
进一步的,在本实施例中,割草机1的总输出功率与割草机1的质量的比值大于等于0.04kW/kg。Further, in the present embodiment, the ratio of the total output power of the lawn mower 1 to the mass of the lawn mower 1 is greater than or equal to 0.04 kW/kg.
在本实施例中,割草机1的总输出功率与割草机1的质量的比值大于等于0.06kW/kg。In the present embodiment, the ratio of the total output power of the lawn mower 1 to the mass of the lawn mower 1 is greater than or equal to 0.06 kW/kg.
在本实施例中,割草机1的质量小于等于23kg。In the present embodiment, the mass of the lawn mower 1 is 23 kg or less.
在本实施例中,割草机1包括三个切割件3。第一切割件301和第二切割件302设置在壳体2的两侧,第三切割件303设置在第一切割件301和第二切割件302之间,且设置在第一切割件301和第二切割件302的前侧。In the present embodiment, the lawn mower 1 includes three cutting members 3. The first cutting member 301 and the second cutting member 302 are disposed on both sides of the housing 2, and the third cutting member 303 is disposed between the first cutting member 301 and the second cutting member 302, and is disposed at the first cutting member 301 and The front side of the second cutting member 302.
各切割件3具有相同的切割直径d。第一切割件301与第二切割件302关于纵轴线X-X对称设置在壳体2两侧。具体的,第一切割件301设置在壳体2右侧,第二切割件302设置在壳体2左侧。第三切割件303设置在纵轴线X-X上,切割直径d略大于第一切割件301与第二切割件302切割范围的间距Δw。切割宽度D为第一切割件301切割范围的右端至第二切割件302切割范围的左端之间的距离。各切割件的切割直径d略大于切割宽度D的1/3。第三切割件303设置在第一切割件301与第二切割件302的前侧,第三切割件303在纵轴线X-X上越靠近第一切割件301与第二切割件302,各切割件总的切割范围沿壳体2纵向的尺寸l就越小。Each cutting member 3 has the same cutting diameter d. The first cutting member 301 and the second cutting member 302 are symmetrically disposed on both sides of the housing 2 with respect to the longitudinal axis X-X. Specifically, the first cutting member 301 is disposed on the right side of the housing 2, and the second cutting member 302 is disposed on the left side of the housing 2. The third cutting member 303 is disposed on the longitudinal axis X-X, and the cutting diameter d is slightly larger than the spacing Δw of the cutting range of the first cutting member 301 and the second cutting member 302. The cutting width D is the distance between the right end of the cutting range of the first cutting member 301 to the left end of the cutting range of the second cutting member 302. The cutting diameter d of each cutting member is slightly larger than 1/3 of the cutting width D. The third cutting member 303 is disposed on the front side of the first cutting member 301 and the second cutting member 302. The third cutting member 303 is closer to the first cutting member 301 and the second cutting member 302 on the longitudinal axis XX, and the cutting members are generally The smaller the dimension l of the cutting range along the longitudinal direction of the casing 2 is.
由于各切割件位于同一工作平面,第三切割303件的旋转中心至第一切割件301/第二切割件302的旋转中心的距离d1必须大于第三切割件303的切割半径与第一切割件301/第二切割件302的切割半径之和,以保证各切割件在工作过程中不相互干涉,保证割草机1的安全性。在d1达到最小值的情况下,第三切割件303的旋转中心与第一切割件301/第二切割件302的旋转中心沿壳体 2纵向的距离d2达到最小值,即各切割件总的切割范围沿壳体2纵向的尺寸l达到最小值。本实施例中,该最小值小于切割宽度D的2/3。Since each cutting member is located at the same working plane, the distance d1 from the center of rotation of the third cutting 303 member to the center of rotation of the first cutting member 301 / the second cutting member 302 must be greater than the cutting radius of the third cutting member 303 and the first cutting member The sum of the cutting radii of the 301/second cutting member 302 is to ensure that the cutting members do not interfere with each other during the working process, and the safety of the lawn mower 1 is ensured. In the case where d1 reaches the minimum value, the center of rotation of the third cutting member 303 and the center of rotation of the first cutting member 301 / the second cutting member 302 are along the housing 2 The longitudinal distance d2 reaches a minimum value, that is, the total cutting range of each cutting member reaches a minimum along the dimension l of the longitudinal direction of the casing 2. In this embodiment, the minimum value is less than 2/3 of the cutting width D.
进一步的,本实施例中,割草机1包括两个前轮,分别设置在第三切割件303的两侧。Further, in this embodiment, the lawn mower 1 includes two front wheels, which are respectively disposed on both sides of the third cutting member 303.
如图3所示,割草机1包括第一前轮19和第二前轮21,对称设置在第三切割件303的两侧。具体的,第一前轮19位于第三切割件303的右侧、第一切割件301的前侧,在不与第一切割件301发生干涉的前提下,紧靠第一切割件301设置。第二前轮21位于第三切割件303的左侧、第二切割件302的前侧,在不与第二切割件302发生干涉的前提下,紧靠第二切割件302设置。前轮的设置使得壳体2能够进一步获得紧凑的结构。As shown in FIG. 3, the lawn mower 1 includes a first front wheel 19 and a second front wheel 21 symmetrically disposed on both sides of the third cutting member 303. Specifically, the first front wheel 19 is located on the right side of the third cutting member 303 and on the front side of the first cutting member 301, and is disposed adjacent to the first cutting member 301 without interfering with the first cutting member 301. The second front wheel 21 is located on the left side of the third cutting member 303 and on the front side of the second cutting member 302, and is disposed adjacent to the second cutting member 302 without interfering with the second cutting member 302. The arrangement of the front wheels enables the housing 2 to further obtain a compact structure.
本实施例中,采用切割直径d为190mm的切割件3,并使得割草机1的切割宽度D为560mm,壳体2的横向尺寸W不小于560mm,本实施例中,将壳体2的横向尺寸W设置为580mm。本实施例中,d1的范围为190-394mm,具体的,将d1的值设置为220mm;d2的范围为43-348mm,具体的,d2的值被设置为119mm;切割范围沿壳体2纵向的尺寸l的范围为235-538mm,具体的,l的值被设置为309mm;壳体2的纵向尺寸L的范围为567-870mm,具体的,L的值为639mm;因此,壳体2的纵向尺寸L与壳体2的横向尺寸W的比值在0.98-1.5之间,具体的,L/W的值为1.10。In this embodiment, the cutting member 3 having a cutting diameter d of 190 mm is used, and the cutting width D of the lawn mower 1 is 560 mm, and the lateral dimension W of the casing 2 is not less than 560 mm. In this embodiment, the housing 2 is The lateral dimension W is set to 580 mm. In this embodiment, the range of d1 is 190-394 mm, specifically, the value of d1 is set to 220 mm; the range of d2 is 43-348 mm, specifically, the value of d2 is set to 119 mm; the cutting range is along the longitudinal direction of the casing 2. The dimension l ranges from 235 to 538 mm. Specifically, the value of l is set to 309 mm; the longitudinal dimension L of the casing 2 ranges from 567 to 870 mm, and specifically, the value of L is 639 mm; therefore, the housing 2 The ratio of the longitudinal dimension L to the lateral dimension W of the casing 2 is between 0.98 and 1.5. Specifically, the L/W value is 1.10.
表7列出了本实施例中其他几组参数值。本实施例中,壳体2在纵向上具有紧凑的结构,减小了割草机1的体积,减轻了割草机1的重量,有效的降低体积功率比及质量功率比。Table 7 lists the other sets of parameter values in this embodiment. In the present embodiment, the housing 2 has a compact structure in the longitudinal direction, which reduces the volume of the lawn mower 1, reduces the weight of the lawn mower 1, and effectively reduces the volumetric power ratio and the mass to power ratio.
表7Table 7
  d(mm)d(mm) d1(mm)D1(mm) d2(mm)D2(mm) D(mm)D(mm) l(mm)l(mm) L(mm)L(mm) W(mm)W(mm) L/WL/W
一组A group 190190 214214 103103 560560 293293 580580 580580 11
二组Two groups 190190 254254 174174 560560 364364 696696 580580 1.21.2
三组Three groups 190190 394394 348348 560560 538538 870870 580580 1.51.5
如图1,在另一个实施例中,割草机1包括三个切割件3,第一切割件301和第二切割件302设置在壳体2的两侧,第三切割件303设置在第一切割件301 和第二切割件302之间,且设置在第一切割件301和第二切割件302的后侧。As shown in Fig. 1, in another embodiment, the lawn mower 1 includes three cutting members 3, the first cutting member 301 and the second cutting member 302 are disposed on both sides of the casing 2, and the third cutting member 303 is disposed at the a cutting member 301 Between the second cutting member 302 and the second cutting member 302, and disposed on the rear side of the first cutting member 301 and the second cutting member 302.
第一切割件301与第二切割件302关于纵轴线X-X对称设置在壳体2两侧,具体的,第一切割件301设置在壳体2的右侧,第二切割件302设置在壳体2的左侧。第三切割件303设置在纵轴线X-X上,设置在第一切割件301与第二切割件302的后侧。第一切割件301和第二切割件302切割范围的最前端共同构成了割草机1切割范围的最前端。The first cutting member 301 and the second cutting member 302 are symmetrically disposed on both sides of the housing 2 with respect to the longitudinal axis XX. Specifically, the first cutting member 301 is disposed on the right side of the housing 2, and the second cutting member 302 is disposed on the housing. 2 on the left side. The third cutting member 303 is disposed on the longitudinal axis X-X and disposed on the rear side of the first cutting member 301 and the second cutting member 302. The forefront of the cutting range of the first cutting member 301 and the second cutting member 302 together constitutes the forefront of the cutting range of the lawn mower 1.
进一步的,在本实施例中,割草机还包括1个前轮23,设置在第一切割件301和第二切割件302之间。Further, in the embodiment, the lawn mower further includes a front wheel 23 disposed between the first cutting member 301 and the second cutting member 302.
前轮23设置在第一切割件301与第二切割件302之间、第三切割件303前侧,在不与第三切割件303发生干涉的前提下,紧靠第三切割件303设置。本实施例中,通过适当增大第三切割件303与第一切割件301、第二切割件302之间的距离,可使前轮23大体上位于第一切割件301、第二切割件302和第三切割件303形成的收容空间内。切割范围的最前端与割草机1的最前端之间的距离Δd能够进一步减小。本实施例中,切割范围的最前端与割草机1的最前端之间的距离Δd可以为60mm,30mm,25mm或22mm。The front wheel 23 is disposed between the first cutting member 301 and the second cutting member 302 and on the front side of the third cutting member 303, and is disposed adjacent to the third cutting member 303 without interfering with the third cutting member 303. In this embodiment, by appropriately increasing the distance between the third cutting member 303 and the first cutting member 301 and the second cutting member 302, the front wheel 23 can be substantially located at the first cutting member 301 and the second cutting member 302. And a receiving space formed by the third cutting member 303. The distance Δd between the foremost end of the cutting range and the foremost end of the lawn mower 1 can be further reduced. In the present embodiment, the distance Δd between the foremost end of the cutting range and the foremost end of the lawn mower 1 may be 60 mm, 30 mm, 25 mm or 22 mm.
具体在本实施例中,切割范围的最前端与割草机1的最前端之间的距离Δd为22mm。割草机1在前进状态下,前轮的前端超过切割范围的最前端的距离可以为40mm,25mm,20mm或15mm。Specifically, in the present embodiment, the distance Δd between the foremost end of the cutting range and the foremost end of the lawn mower 1 is 22 mm. When the lawn mower 1 is in the forward state, the front end of the front wheel may exceed the foremost end of the cutting range by a distance of 40 mm, 25 mm, 20 mm or 15 mm.
具体在本实施例中,割草机1在前进状态下,前轮的前端超过切割范围的最前端的距离为15mm。当割草机1遇到边缘时,例如遇到墙体时,割草机1的最前端与墙体发生接触,割草机1达到极限切割位置,此时,第一切割件301、第二切割件302能够切割到距离墙体22mm左右处的草,对靠近边缘的草的切割效果好。Specifically, in the present embodiment, in the forward state, the front end of the front wheel exceeds the foremost end of the cutting range by a distance of 15 mm. When the lawn mower 1 encounters the edge, for example, when the wall is encountered, the front end of the lawn mower 1 comes into contact with the wall, and the lawn mower 1 reaches the limit cutting position. At this time, the first cutting member 301, the second The cutting member 302 is capable of cutting grass up to about 22 mm from the wall, and has a good cutting effect on the grass near the edge.
本实施例中,第一切割件301和第二切割件302切割范围的最前端共同构成割草机1切割范围的最前端,第一切割件301和第二切割件302均能够切割到靠近边缘的草,切割件3在边缘附近的切割范围更大,对靠近边缘的草切割效果更好,割草机1能够更好的切割到边。In the present embodiment, the forefronts of the cutting range of the first cutting member 301 and the second cutting member 302 together constitute the foremost end of the cutting range of the lawn mower 1, and both the first cutting member 301 and the second cutting member 302 can be cut to the edge. The grass, the cutting member 3 has a larger cutting range near the edge, and the cutting effect on the grass near the edge is better, and the lawn mower 1 can cut the edge better.
上述割草机1,采用多个分立的切割件3代替传统的单切割件。至少其中2个切割件3的切割范围沿壳体2的纵向有重叠部分,使得上述割草机1的总 输出功率与割草机1的体积的比值大于等于6kW/m3。与传统的割草机相比,在功率相同时体积显著减小。因此,割草机1可有效降低体积功率比,在所需输出功率一定时,可以将体积做的更小。The above lawn mower 1 employs a plurality of discrete cutting members 3 in place of the conventional single cutting members. Cutting range of which at least two of the cutting member 3 overlapping the longitudinal direction of the housing portion 2, such that the total output power above a mower with a mower volume ratio is not less than 6kW / m 3. Compared to conventional lawn mowers, the volume is significantly reduced at the same power. Therefore, the lawn mower 1 can effectively reduce the volumetric power ratio, and the volume can be made smaller when the required output power is constant.
如图8,本发明的第八实施例中,割草机1的结构与第六实施例中的主要结构基本一致,差异在于,割草机1包括1个前轮25,设置在第一切割件301和第二切割件302的后侧。前轮25的前端不超过切割件3切割范围的最前端。如图8所示,前轮25设置在切割件3的后侧,设置在纵轴线X-X上。前轮25位于切割件3的后侧,使得切割范围的最前端与割草机1的最前端的距离不受前轮25的影响,最大限度地减小了切割件3切割范围的最前端与割草机1的最前端之间的距离。本实施例中,切割件3切割范围的最前端与割草机1的最前端之间的距离Δd为20mm。与第六实施例和第七实施例中的割草机1的结构相比,前轮25设置在切割件3的后侧,不会因前轮25与切割件3的距离太近而导致前轮25压过的草无法被切割件3切割的问题,切割效果好。本实施例中,通过适当增加割草机1后部的配重,使得割草机1能够稳定地行驶和工作。As shown in Fig. 8, in the eighth embodiment of the present invention, the structure of the lawn mower 1 is basically the same as that of the sixth embodiment, with the difference that the lawn mower 1 includes a front wheel 25 disposed at the first cutting. The rear side of the piece 301 and the second cutting piece 302. The front end of the front wheel 25 does not exceed the foremost end of the cutting range of the cutting member 3. As shown in Fig. 8, the front wheel 25 is disposed on the rear side of the cutting member 3, and is disposed on the longitudinal axis X-X. The front wheel 25 is located on the rear side of the cutting member 3 such that the distance between the foremost end of the cutting range and the foremost end of the lawn mower 1 is not affected by the front wheel 25, minimizing the front end of the cutting range of the cutting member 3 The distance between the foremost ends of the mower 1. In the present embodiment, the distance Δd between the foremost end of the cutting range of the cutting member 3 and the foremost end of the lawn mower 1 is 20 mm. Compared with the structure of the lawn mower 1 in the sixth embodiment and the seventh embodiment, the front wheel 25 is disposed on the rear side of the cutting member 3, and is not caused by the distance between the front wheel 25 and the cutting member 3 being too close. The grass pressed by the wheel 25 cannot be cut by the cutting member 3, and the cutting effect is good. In the present embodiment, the lawn mower 1 can be stably driven and operated by appropriately increasing the weight of the rear portion of the lawn mower 1.
本发明的另一实施例中,割草机1的结构与第七实施例中的主要结构基本一致,差异在于,前轮非万向轮,在枢转中心的位置不变的情况下,前轮后侧与第三切割件303切割范围的最前端的距离增大,能够减小前轮压草的影响。In another embodiment of the present invention, the structure of the lawn mower 1 is substantially the same as that of the seventh embodiment, and the difference is that the front wheel non-universal wheel, in the case where the position of the pivot center is constant, the front The distance between the rear side of the wheel and the foremost end of the cutting range of the third cutting member 303 is increased, and the influence of the front wheel grass pressing can be reduced.
本发明的另一实施例中,割草机1由交流电源供电,切割马达为直流电机,交流电源输入经转换电路转换为直流电输出给直流电机。如图9所示,开关K1闭合时,输入的交流电经整流桥整流为直流电,具体的,整流桥为由整流管D1、D2、D3、D4组成的全桥电路,再经滤波电容C1输出给直流电机。本实施例中,割草机1包括手柄,开关K1设置在手柄上。本实施例中,输入120V交流电源,直流电机的工作电压为120V。可选择的,直流电机可以为工作电压低于120V的直流电机,如56V的直流电机,此时转换电路中还包括降压电路,将输入的交流电先降压再转换为直流电,或者将输入的交流电转换为直流电后再降压,输出给直流电机。In another embodiment of the present invention, the lawn mower 1 is powered by an alternating current power source, the cutting motor is a direct current motor, and the alternating current power input is converted into a direct current output to the direct current motor via a conversion circuit. As shown in Figure 9, when the switch K1 is closed, the input AC power is rectified to DC by the rectifier bridge. Specifically, the rectifier bridge is a full-bridge circuit composed of rectifiers D1, D2, D3, and D4, and then output to the filter capacitor C1. DC. In this embodiment, the lawn mower 1 includes a handle, and the switch K1 is disposed on the handle. In this embodiment, a 120V AC power source is input, and the operating voltage of the DC motor is 120V. Alternatively, the DC motor can be a DC motor with a working voltage lower than 120V, such as a 56V DC motor. At this time, the conversion circuit further includes a step-down circuit, and the input AC power is first stepped down and then converted into DC power, or the input is input. After the AC power is converted to DC power, it is stepped down and output to the DC motor.
本发明的另一实施例中,切割马达为串激电机,交流电源输入经开关K1控制直接输出给串激电机。In another embodiment of the invention, the cutting motor is a series motor, and the AC power input is directly output to the series motor via the control of the switch K1.
本发明的另一实施例中,切割马达为直流电机,采用电池包给割草机1供 电。割草机1包括手柄,电池包安装于割草机的壳体上或者手柄上。具体的,直流电机的工作电压为56V,采用2个56V电池包并联为割草机1供电。In another embodiment of the present invention, the cutting motor is a DC motor, and the battery pack is used for the lawn mower 1 Electricity. The lawn mower 1 includes a handle that is mounted to the lawn mower housing or to the handle. Specifically, the working voltage of the DC motor is 56V, and two 56V battery packs are used in parallel to supply power to the lawn mower 1.
如图10至图15,为本发明第九至第十二实施例揭示的割草机结构图,其中割草机包括:壳体;切割马达,安装于所述壳体,提供驱动力;多个切割件,由所述切割马达驱动以旋转执行割草工作;所述割草机还包括:与所述切割件对应的多个切割腔体,所述切割腔体彼此独立;与所述切割腔体对应的至少一个排草通道,所述至少一个排草通道与所述切割腔体连通。10 to FIG. 15 are structural views of a lawn mower according to a ninth to twelfth embodiments of the present invention, wherein the lawn mower includes: a casing; a cutting motor mounted on the casing to provide a driving force; a cutting member driven by the cutting motor to perform a mowing operation in rotation; the lawn mower further comprising: a plurality of cutting cavities corresponding to the cutting member, the cutting cavities being independent of each other; and the cutting At least one grass channel corresponding to the cavity, the at least one grass channel being in communication with the cutting cavity.
如图10至图12所示,为本发明第九实施例的割草机1’的结构图。其中割草机1’包括两个切割件(图未示),分别为第一切割件和第二切割件。第一切割件与第二切割件在割草机的行进方向上错开设置。在本实施例中,第一切割件与第二切割件的具有相同的切割直径d,切割直径d的尺寸范围为150mm~220mm,优选的,切割直径d为200mm。具体的,第一切割件较第二切割件靠前设置,也可以设置为第二切割件较第一切割件靠前设置。第一切割件在割草工作时形成的工作平面为第一割草面,第二切割件在割草工作时形成的工作平面为第二割草面。第一割草面与第二割草面位于同一平面,保证割草机割草平整。第一割草面与第二割草面沿割草机的前进方向平行设置,且第一割草面与第二割草面在割草机1’的前进方向上至少部分重叠。具体的,第一割草面与第二割草面相重叠的区域在横向上的尺寸范围为0~30mm,优选值为10mm。如此设计,当第一切割件靠前设置,第二切割件靠后设置,则在割草机1的前进方向上,在前的第一割草面经过一割草区域时,在后的第二割草面会至少经过该割草区域的部分,使得前后割草区域重叠,进一步保证切割件的切割范围能够覆盖割草机的切割宽度,避免二次切割,且可以保证不漏草。Fig. 10 to Fig. 12 are configuration diagrams of a lawn mower 1' according to a ninth embodiment of the present invention. The lawn mower 1' includes two cutting members (not shown), which are a first cutting member and a second cutting member, respectively. The first cutting member and the second cutting member are staggered in the traveling direction of the lawn mower. In the present embodiment, the first cutting member and the second cutting member have the same cutting diameter d, and the cutting diameter d ranges from 150 mm to 220 mm, and preferably, the cutting diameter d is 200 mm. Specifically, the first cutting member is disposed forward of the second cutting member, and the second cutting member may be disposed forward of the first cutting member. The working plane formed by the first cutting member during the mowing work is the first mowing surface, and the working plane formed by the second cutting member during the mowing work is the second mowing surface. The first mowing surface is on the same plane as the second mowing surface to ensure that the mower is mowing the grass. The first mowing surface and the second mowing surface are disposed in parallel along the advancing direction of the lawn mower, and the first mowing surface and the second mowing surface at least partially overlap in the advancing direction of the lawn mower 1'. Specifically, the area where the first mowing surface overlaps the second mowing surface has a size in the lateral direction of 0 to 30 mm, preferably 10 mm. So designed, when the first cutting member is disposed forward and the second cutting member is disposed rearward, in the forward direction of the lawn mower 1, when the first first mowing surface passes through a mowing area, The mowing surface will pass at least part of the mowing area, so that the front and rear mowing areas overlap, further ensuring that the cutting range of the cutting part can cover the cutting width of the mower, avoiding secondary cutting, and ensuring no leakage.
结合图10、图11与图12,壳体的底盘上设有与两个切割件一一对应的切割腔体5’。具体的,切割腔体5’包括收容第一切割件的第一切割腔体501’及收容第二切割件的第二切割腔体502’。第一切割腔体501’与第二切割腔体502’是在前后方向上相交的两个中空圆筒状结构且设置在同一水平面上。切割腔体5’包括覆盖切割件的腔体壁11’,腔体壁11’至少部分地沿切割件的切割范围的外围包围切割件。具体的,第一切割腔体501’包括覆盖第一切割件的第一腔体壁111’,第一腔体壁111’至少部分地沿切割件的切割范围的外围包围第一切割 件。第二切割腔体502’包括覆盖第二切割件的第二腔体壁112’,第二腔体壁112’至少部分地沿第二切割件502’的切割范围的外围包围第二切割件。Referring to Figures 10, 11, and 12, the chassis of the housing is provided with a cutting cavity 5' in one-to-one correspondence with the two cutting members. Specifically, the cutting cavity 5' includes a first cutting cavity 501' that houses the first cutting member and a second cutting cavity 502' that houses the second cutting member. The first cutting cavity 501' and the second cutting cavity 502' are two hollow cylindrical structures that intersect in the front-rear direction and are disposed on the same horizontal plane. The cutting cavity 5' includes a cavity wall 11' that covers the cutting member, the cavity wall 11' at least partially surrounding the cutting member along the periphery of the cutting extent of the cutting member. Specifically, the first cutting cavity 501' includes a first cavity wall 111' covering the first cutting member, the first cavity wall 111' at least partially surrounding the first cutting along the periphery of the cutting range of the cutting member Pieces. The second cutting cavity 502' includes a second cavity wall 112' that covers the second cutting member, and the second cavity wall 112' at least partially surrounds the second cutting member along the periphery of the cutting extent of the second cutting member 502'.
割草机1’还包括形成于相邻的切割腔体5’的腔体壁11’之间的缺口8,且该缺口8向远离草面的方向凹陷形成。腔体壁11’包括顶壁及与顶壁连接且在周向上围绕切割件的腔体侧壁15’。具体的,第一腔体壁111’包括围绕第一切割件的第一腔体侧壁151’,第二腔体壁112’包括围绕第二切割件的第二腔体侧壁152’。在本实施例中,该缺口8凹陷形成于相邻的所述切割腔体的腔体侧壁15’上。第一腔体侧壁151’与第二腔体侧壁152’在割草机1’前进方向上的剖面为内径相等的两个圆形结构。第一腔体壁111’与第二腔体壁112’相交形成两个交点区域,其中一个交点区域确定为缺口8的第一边缘81,另一个交点区域确定为缺口的第二边缘82。该第一边缘81与第二边缘82位于第一切割件与所述第二切割件的旋转中心连线的两侧。缺口8的第一边缘81或第二边缘82与第一切割腔体501’或者第二切割腔体502’的直径的最远距离B的取值范围为40mm~90mm,优选为65mm。在本实施方式中,连接第一切割腔体501’与第二切割腔体502’的缺口8的开口朝向草面,可实现第一切割腔体501’的空间与第二切割腔体502’的空间连通,一方面,解决单个的切割腔内气流流动空间小,被切割的草很容易堵塞在切割腔体5’内的缺陷,有效地提高了割草机的割草和碎草效率,另一方面,减少了腔体侧壁压草而带来的漏草现象。当然在其他实施方式中,第一腔体侧壁151’与第二腔体侧壁152’在割草机1’前进方向上的剖面也可以为其他符合要求的几何形状。第一腔体侧壁151’与第二腔体侧壁152’也可以相离或者相切设置,通过缺口8连接第一腔体侧壁151’与第二腔体侧壁152’以实现第一切割腔体501’与第二切割腔体502’内的气流连通及减少腔体侧壁压草的有益效果。The lawn mower 1' further includes a notch 8 formed between the cavity walls 11' of the adjacent cutting cavities 5', and the notches 8 are recessed in a direction away from the grass surface. The cavity wall 11' includes a top wall and a cavity sidewall 15' that is coupled to the top wall and circumferentially surrounds the cutting member. Specifically, the first cavity wall 111' includes a first cavity sidewall 151' that surrounds the first cutting member, and the second cavity wall 112' includes a second cavity sidewall 152' that surrounds the second cutting member. In the present embodiment, the notch 8 is recessed in the cavity side wall 15' of the adjacent cutting cavity. The cross section of the first cavity side wall 151' and the second cavity side wall 152' in the advancing direction of the lawn mower 1' is two circular structures having the same inner diameter. The first cavity wall 111' intersects the second cavity wall 112' to form two intersection regions, one of which is defined as the first edge 81 of the notch 8, and the other of which is defined as the second edge 82 of the notch. The first edge 81 and the second edge 82 are located on both sides of the line connecting the centers of rotation of the first cutting member and the second cutting member. The furthest distance B of the diameter of the first edge 81 or the second edge 82 of the notch 8 from the first cutting cavity 501' or the second cutting cavity 502' ranges from 40 mm to 90 mm, preferably 65 mm. In this embodiment, the opening of the notch 8 connecting the first cutting cavity 501' and the second cutting cavity 502' faces the grass surface, and the space of the first cutting cavity 501' and the second cutting cavity 502' can be realized. The space communication, on the one hand, solves the small airflow flow space in a single cutting cavity, and the cut grass easily blocks the defects in the cutting cavity 5', effectively improving the mowing and grassing efficiency of the lawn mower. On the other hand, the phenomenon of grass leakage caused by grass pressing on the side wall of the cavity is reduced. Of course, in other embodiments, the cross-section of the first cavity sidewall 151' and the second cavity sidewall 152' in the direction of advancement of the lawn mower 1' may also be other desirable geometries. The first cavity sidewall 151' and the second cavity sidewall 152' may also be spaced apart or tangentially disposed, and the first cavity sidewall 151' and the second cavity sidewall 152' are connected through the notch 8 to achieve the first A cutting cavity 501' communicates with the airflow within the second cutting cavity 502' and reduces the beneficial effects of the sidewall sidewall pressing.
如图11所示,缺口8的宽度即为从K方向看时,缺口8的横向尺寸。考虑到若缺口8的宽度太大,割草机1’在碎草模式下,第一切割件和第二切割件同时以顺时针或者同时以逆时针旋转时,一方面,很容易将碎草甩至到两个切割腔体5’之间的缺口8处,此时会造成碎草将缺口8给堵塞住,另一方面,割草机1’工作时,缺口8的宽度尺寸太大将无法做到两个切割腔体进行独立的碎草收草,非常容易出现第一切割腔体501’的碎草穿过缺口8至少部分被甩至第 二切割腔体502’内,第二切割腔体502’的碎草穿过缺口8至少部分被甩至第一切割腔体501’内,造成两个切割腔体碎草收草混乱;若缺口8的宽度太小,又无法解决各切割腔体内气流流动空间小及减小腔体侧壁压草的问题。因此在本实施方式中,缺口8的宽度A的取值范围为90mm~140mm,优选的,其宽度A为115mm。如此设计,不但可以解决各切割腔体内气流流动空间小及腔体侧壁压草的问题,也不会产生碎草堵塞缺口8,相邻切割腔体碎草模式混乱的现象。如图11,缺口8的深度C即为从K方向看时,缺口8的纵向尺寸。缺口8的深度C设置成小于切割腔体的腔体侧壁的深度。优选的,缺口8的深度C设置成大于等于切割腔体5’的深度的1/2而小于切割腔体5’的深度。如图12,此处的深度C具体的应理解为与割草机1’前进方向相垂直且与工作平面相垂直的方向上的竖直尺寸。在本实施例中,缺口8的深度C的取值范围为40mm~90mm,优选值为65mm。如此设计,将腔体侧壁部分挖空形成缺口8,在确保各切割腔体彼此独立的同时,又提升了碎草效果及割草效果。从K方向看时,缺口8的截面呈等腰梯形状,以利于拔模,上述宽度A对应等腰梯形的长底边,深度C对应等腰梯形的高。As shown in Fig. 11, the width of the notch 8 is the lateral dimension of the notch 8 when viewed in the K direction. Considering that if the width of the notch 8 is too large, the mower 1' is in the grass mode, and when the first cutting member and the second cutting member are simultaneously rotated clockwise or simultaneously counterclockwise, on the one hand, the grass is easily broken. Picking up to the gap 8 between the two cutting cavities 5', at this time, the grass will block the notch 8. On the other hand, when the mower 1' is working, the width of the notch 8 is too large to be It is very easy for the two cutting cavities to perform independent grass harvesting, and it is very easy for the grass of the first cutting cavity 501' to pass through the notch 8 at least partially to the first Within the two cutting cavity 502', the grass of the second cutting cavity 502' is at least partially smashed into the first cutting cavity 501' through the notch 8, causing the two cutting cavities to be confusing; The width of 8 is too small to solve the problem of small airflow flow space in each cutting cavity and reducing the grass pressing on the side wall of the cavity. Therefore, in the present embodiment, the width A of the notch 8 ranges from 90 mm to 140 mm, and preferably, the width A is 115 mm. The design can not only solve the problem that the flow space of the air in each cutting chamber is small and the side wall of the cavity is pressed, nor does it cause the grass to block the gap 8 and the pattern of the adjacent cutting cavity is chaotic. As shown in Fig. 11, the depth C of the notch 8 is the longitudinal dimension of the notch 8 when viewed in the K direction. The depth C of the notch 8 is set to be less than the depth of the cavity sidewall of the cutting cavity. Preferably, the depth C of the notch 8 is set to be greater than or equal to 1/2 of the depth of the cutting cavity 5' and smaller than the depth of the cutting cavity 5'. As shown in Fig. 12, the depth C herein is specifically understood to be a vertical dimension in a direction perpendicular to the advancing direction of the lawn mower 1' and perpendicular to the working plane. In the present embodiment, the depth C of the notch 8 ranges from 40 mm to 90 mm, preferably 65 mm. In this way, the side wall portion of the cavity is hollowed out to form the notch 8, which ensures the grass cutting effect and the mowing effect while ensuring that the cutting cavities are independent of each other. When viewed from the K direction, the cross section of the notch 8 has an isosceles shape to facilitate drafting, and the width A corresponds to the long base of the isosceles trapezoid, and the depth C corresponds to the height of the isosceles trapezoid.
切割马达收容于割草机1’的壳体,驱动切割件执行割草工作。本实施例中,割草机1’包括多个切割马达(图未示),切割马达与切割件一一对应地连接。具体的,割草机1’包括驱动第一切割件的第一切割马达和驱动第二切割件的第二切割马达。第一切割马达包括与第一切割件配接的第一输出轴,第二切割马达包括与第二切割件配接的第二输出轴,第一输出轴与第二输出轴在轴向上相互平行。第一输出轴延伸至第一切割腔体501’的内部并通过其圆心;第二输出轴延伸至第二切割腔体502’的内部并通过其圆心。第一输出轴与第二输出轴的连线与割草机1’的前进方向之间呈夹角设置。第一、第二切割件分别连接至相应的输出轴上,并随之转动。在本实施方式中,切割马达与切割件一一对应有利于对切割工作的灵活控制。每个切割马达驱动一个切割件,降低了对马达功率的要求,从而降低了成本。The cutting motor is housed in the housing of the lawn mower 1', and the cutting member is driven to perform a mowing operation. In the present embodiment, the lawn mower 1' includes a plurality of cutting motors (not shown), and the cutting motors are connected in one-to-one correspondence with the cutting members. Specifically, the lawn mower 1' includes a first cutting motor that drives the first cutting member and a second cutting motor that drives the second cutting member. The first cutting motor includes a first output shaft that mates with the first cutting member, and the second cutting motor includes a second output shaft that mates with the second cutting member, the first output shaft and the second output shaft axially interacting with each other parallel. The first output shaft extends to the interior of the first cutting cavity 501' and through its center; the second output shaft extends to the interior of the second cutting cavity 502' and through its center. The line connecting the first output shaft and the second output shaft is disposed at an angle to the advancing direction of the lawn mower 1'. The first and second cutting members are respectively coupled to the respective output shafts and rotate therewith. In the present embodiment, the one-to-one correspondence between the cutting motor and the cutting member facilitates flexible control of the cutting work. Each cutting motor drives a cutting member, reducing the power requirements of the motor, thereby reducing costs.
壳体的底盘设有与切割件对应的至少一个排草通道7”,至少一个排草通道7”与切割腔体5’连通设置。在本实施方式中,排草通道7”的数量设有多个,且与切割腔体5’的数量相同,多个排草通道7”彼此独立,每个排草通道7”与 一个切割腔体5’连通设置。腔体壁11’设有连接各排草通道的腔体开口17’,切割腔体5’内的碎草通过腔体壁11’的腔体开口17’流入排草通道7”,进入草箱。腔体壁11’的腔体开口17’直径为切割件直径的1/5-1/2。具体的,本实施例中,腔体壁的腔体开口17’直径为切割件直径的1/3。腔体壁的腔体开口17’供切割腔体5’内的碎草被引导至排草通道7”,腔体开口17’的直径为切割件直径的1/3,能够满足切割腔体5’内的碎草被及时排出,同时不会因为腔体开口17’过大而扰乱切割腔体内的旋转气流。排草通道7”连接切割腔体5’的一端的尺寸等于连接排草口9’一端的尺寸。当然在其他实施例中,排草通道7”连接切割腔体5’一端的尺寸可以设置成小于连接排草口9’的一端的尺寸。The chassis of the housing is provided with at least one grass passage 7" corresponding to the cutting member, at least one of the grass passages 7" being communicated with the cutting chamber 5'. In the present embodiment, the number of the grass discharge passages 7" is plural, and is the same as the number of the cutting cavities 5', and the plurality of grass discharge passages 7" are independent of each other, and each of the grass discharge passages 7" and A cutting chamber 5' is provided in communication. The cavity wall 11' is provided with a cavity opening 17' connecting the rows of grass passages, and the grass in the cutting cavity 5' flows into the grass passage 7" through the cavity opening 17' of the cavity wall 11', into the grass box The diameter of the cavity opening 17' of the cavity wall 11' is 1/5-1/2 of the diameter of the cutting member. Specifically, in the embodiment, the diameter of the cavity opening 17' of the cavity wall is 1 of the diameter of the cutting member. / 3. The cavity opening 17' of the cavity wall is provided for the grass in the cutting cavity 5' to be guided to the grass discharge channel 7", the diameter of the cavity opening 17' is 1/3 of the diameter of the cutting piece, which can satisfy the cutting The grass in the cavity 5' is discharged in time without disturbing the swirling airflow in the cutting chamber due to the cavity opening 17' being too large. The size of one end of the weeding channel 7" connecting the cutting cavity 5' is equal to the size of the end of the connecting grass opening 9'. Of course, in other embodiments, the size of the end of the grassing channel 7" connecting the cutting cavity 5' can be set to It is smaller than the size of one end connected to the grass opening 9'.
排草通道7”包括彼此独立的第一排草通道701’和第二排草通道702’。在本实施例中,切割件的旋转方向一致,第一排草通道701’和第二排草通道702’均连接于对应的切割腔体5’的同半侧,沿相同方向延伸并连接至壳体后部的排草口9’。第一排草通道701’连通第一切割腔体501’,第二排草通道702’连通第二切割腔体502’。第一排草通道701’与第二排草通道702’的方向一致,均位于相应的第一切割腔体501’、第二切割腔体502’的左半侧或者均位于相应的第一切割腔体501’、第二切割腔体502’的右半侧。当第一排草通道701’与第二排草通道702’均位于第一切割腔体501’、第二切割腔体502’的左半侧时,第一切割件与第二切割件均沿逆时针方向旋转;当第一排草通道701’与第二排草通道702’均位于相应的第一切割腔体501’、第二切割腔体502’的右半侧时,第一切割件与第二切割件均沿顺时针方向旋转。本实施例中,排草通道7”’相互平行且均从切割腔体向壳体后部聚拢,能够减小壳体2’的横向尺寸,使割草机1’的结构紧凑。割草机1’工作时,切割件的旋转在切割腔体5’内形成气流,被切割的草受切割腔体5’内气流的引导而流动,流向与切割腔体对应的排草通道。排草通道另一端连接壳体后部的草箱,被切割的碎草通过排草通道流入草箱,避免了不同流向的碎草相互碰撞,造成碎草在排草口堆积。The grass discharge passage 7" includes a first row of grass passages 701' and a second row of grass passages 702' independent of each other. In the present embodiment, the rotation directions of the cutting members are uniform, the first row of grass passages 701' and the second row of grasses The channels 702' are each connected to the same half of the corresponding cutting cavity 5', extend in the same direction and are connected to the grass opening 9' at the rear of the housing. The first row of grass channels 701' communicate with the first cutting cavity 501 ' The second row of grass channels 702' communicate with the second cutting cavity 502'. The first row of grass channels 701' are aligned with the second row of grass channels 702', both located in the corresponding first cutting cavity 501', The left half of the two cutting cavities 502' are either located on the right half of the corresponding first cutting cavity 501' and the second cutting cavity 502'. When the first row of grass channels 701' and the second row of grass channels 702 'When both are located in the first cutting cavity 501', the left half of the second cutting cavity 502', the first cutting member and the second cutting member both rotate in a counterclockwise direction; when the first row of grass channels 701' and the first The two rows of grass channels 702' are all located on the right side of the corresponding first cutting cavity 501' and the second cutting cavity 502'. The first cutting member and the second cutting member both rotate in a clockwise direction. In the embodiment, the grass discharging passages 7"' are parallel to each other and are gathered from the cutting cavity toward the rear of the housing, so that the housing 2' can be reduced. The lateral dimensions make the mower 1' compact. When the lawn mower 1' is in operation, the rotation of the cutting member forms an air flow in the cutting chamber 5', and the cut grass flows by the flow of the air in the cutting chamber 5' to flow to the grass passage corresponding to the cutting chamber. The other end of the grass passage is connected to the grass box at the rear of the shell, and the cut grass is flowed into the straw box through the grass passage to prevent the grass from colliding with each other from colliding with each other, causing the grass to accumulate in the grass drain.
图13为本发明的第十实施例的割草机1”的结构图,第十实施例中提供的割草机与第九实施例的主要结构基本一致。差异在于,排草通道的方向不一致,切割件的旋转方向不同。具体的,第一切割件沿顺时针方向旋转,第一排草通道701’连接于第一切割腔体501’的右半侧,第二切割件沿逆时针方向旋转,第 二排草通道702’连接于第二切割腔体502’的左半侧,第一排草通道与第二排草通道从切割腔体向壳体后部聚拢,能够减小壳体的横向尺寸,使割草机的结构紧凑。相邻的排草通道的纵轴线的夹角大于等于10度且小于等于45度。Figure 13 is a structural view showing a lawn mower 1" according to a tenth embodiment of the present invention, and the lawn mower provided in the tenth embodiment is basically identical to the main structure of the ninth embodiment. The difference is that the direction of the grass passage is inconsistent. The rotating direction of the cutting member is different. Specifically, the first cutting member rotates in a clockwise direction, the first row of grass passages 701' are connected to the right half of the first cutting cavity 501', and the second cutting member is counterclockwise Rotation, number The two rows of grass channels 702' are connected to the left half of the second cutting cavity 502', and the first row of grass channels and the second row of grass channels are gathered from the cutting cavity to the rear of the casing to reduce the lateral dimension of the casing. To make the mower compact. The angle of the longitudinal axis of the adjacent grass passage is greater than or equal to 10 degrees and less than or equal to 45 degrees.
图14为本发明的第十一实施例的割草机1”’的结构图,第十一实施例提供的割草机的结构与第九实施例基本一致,差异在于:该割草机包括3个切割件(图未示),分别为第一切割件、第二切割件及第三切割件。第一切割件和第二切割件设置在壳体的两侧,第三切割件设置在第一切割件与第二切割件之间,且设置在第一切割件与第二切割件的前侧。本实施例中,第一切割件与第二切割件关于纵向轴线X-X对称设置在壳体两侧。具体的,第一切割件设置在壳体右侧,第二切割件设置在壳体左侧,第三切割件设置在壳体的纵向轴线X-X上。切割宽度D为第一切割件切割范围的右端至第二切割件切割范围的左端之间的距离。在本实施例中,第一切割件、第二切割件及第三切割件的旋转方向一致。Figure 14 is a structural view of a lawn mower 1"' according to an eleventh embodiment of the present invention, and the structure of the lawn mower according to the eleventh embodiment is basically the same as that of the ninth embodiment, and the difference is that the lawn mower includes 3 cutting members (not shown) are respectively a first cutting member, a second cutting member and a third cutting member. The first cutting member and the second cutting member are disposed on two sides of the casing, and the third cutting member is disposed at Between the first cutting member and the second cutting member, and disposed on the front side of the first cutting member and the second cutting member. In the embodiment, the first cutting member and the second cutting member are symmetrically disposed on the shell with respect to the longitudinal axis XX. Specifically, the first cutting member is disposed on the right side of the housing, the second cutting member is disposed on the left side of the housing, and the third cutting member is disposed on the longitudinal axis XX of the housing. The cutting width D is the first cutting The distance between the right end of the cutting range and the left end of the cutting range of the second cutting member. In the embodiment, the rotation directions of the first cutting member, the second cutting member and the third cutting member are uniform.
壳体的底盘上还设有与切割件一一对应的切割腔体5”。具体的,切割腔体5”包括收容第一切割件的第一切割腔体501”、收容第二切割件的第二切割腔体502”及收容第三切割件的第三切割腔体503”。第一切割腔体501”、第二切割腔体502”与第三切割腔体503”设置在同一水平面上且均呈中空的圆筒状结构。切割腔体5”包括覆盖切割件的腔体壁11”,腔体壁11”至少部分地沿切割件的切割范围的外围包围切割件。具体的,第一切割腔体501”包括覆盖第一切割件的第一腔体壁111”,第一腔体壁111”至少部分地沿切割件的切割范围的外围包围第一切割件。第二切割腔体502”包括覆盖第二切割件的第二腔体壁112”,第二腔体壁112”至少部分地沿第二切割件的切割范围的外围包围第二切割件。第三切割腔体503”包括覆盖第三切割件的第三腔体壁113”,第三腔体壁113”至少部分地沿切割件的切割范围的外围包围第三切割件。腔体壁11”包括顶壁及与顶壁连接且在周向上围绕切割件的腔体侧壁。具体的,第一腔体壁111”包括围绕第一切割件的第一腔体侧壁,第二腔体壁112’包括围绕第二切割件的第二腔体侧壁,第三腔体壁113”包括围绕第三切割件的第三腔体侧壁。The chassis of the housing is further provided with a cutting cavity 5" corresponding to the cutting member. Specifically, the cutting cavity 5" includes a first cutting cavity 501" for receiving the first cutting member, and a second cutting member for receiving the second cutting member. a second cutting cavity 502" and a third cutting cavity 503" accommodating the third cutting member. The first cutting cavity 501", the second cutting cavity 502" and the third cutting cavity 503" are disposed on the same horizontal surface Both have a hollow cylindrical structure. The cutting cavity 5" includes a cavity wall 11" covering the cutting member, the cavity wall 11" at least partially surrounding the cutting member along the periphery of the cutting extent of the cutting member. Specifically, the first cutting cavity 501" includes a first covering The first cavity wall 111" of the cutting member, the first cavity wall 111" at least partially surrounds the first cutting member along the periphery of the cutting extent of the cutting member. The second cutting cavity 502" includes a second cavity wall 112" that covers the second cutting member, the second cavity wall 112" at least partially surrounding the second cutting member along a periphery of the cutting extent of the second cutting member. The cutting cavity 503" includes a third cavity wall 113" covering the third cutting member, the third cavity wall 113" enclosing the third cutting member at least partially along the periphery of the cutting extent of the cutting member. The cavity wall 11" includes a top wall and a cavity sidewall connected to the top wall and circumferentially surrounding the cutting member. Specifically, the first cavity wall 111" includes a first cavity sidewall surrounding the first cutting member, The second cavity wall 112' includes a second cavity sidewall surrounding the second cutting member, and the third cavity wall 113" includes a third cavity sidewall surrounding the third cutting member.
割草机1”’还包括与切割腔体5”对应的至少一个排草通道7”’,所述至少一个排草通道包括第一排草通道701”、第二排草通道702”和第三排草通道703”,每个排草通道与一个切割腔体5”连通。具体的,第一排草通道701”连 通第一切割腔体501”,第二排草通道702”连通第二切割腔体502”,第三排草通道703”连通第三切割腔体503”。第一排草通道701”、第二排草通道702”及第三排草通道703”彼此独立设置。在本实施例中,切割件的旋转方向一致,排草通道连接于对应的切割腔体的同半侧,沿相同方向延伸至壳体后部的排草口9”。在本实施例中,三个排草通道均位于相应的切割腔体的左半侧,设置在相应的切割腔体内的切割件均以逆时针方向旋转,被切割的碎草沿逆时针方向流入相应的排草通道。当然在其他实施方式中,三个排草通道也可均设置在相应的切割腔体的右半侧,设置在相应的切割腔体内的切割件均以顺时针方向旋转,被切割的碎草沿顺时针方向流入相应的排草通道。The lawn mower 1"' further includes at least one grass channel 7"' corresponding to the cutting cavity 5", the at least one grass channel comprising a first row of grass channels 701", a second row of grass channels 702" and Three rows of grass passages 703", each row of grass passages is connected to a cutting chamber 5". Specifically, the first row of grass passages 701" Passing through the first cutting cavity 501", the second row of grass channels 702" communicates with the second cutting cavity 502", and the third row of grass channels 703" communicates with the third cutting cavity 503". The first row of grass channels 701", the first The two rows of grass passages 702" and the third row of grass passages 703" are independently arranged from each other. In this embodiment, the cutting members have the same direction of rotation, and the grass passages are connected to the same half of the corresponding cutting cavity and extend in the same direction to the grass opening 9" at the rear of the housing. In this embodiment, The three rows of grass passages are located on the left half of the corresponding cutting cavity, and the cutting members disposed in the corresponding cutting cavity are rotated in a counterclockwise direction, and the cut grass is flowed counterclockwise into the corresponding grass passage. Of course, in other embodiments, three rows of grass passages may also be disposed on the right half of the corresponding cutting cavity, and the cutting members disposed in the corresponding cutting cavity are rotated in a clockwise direction, and the cut grass along the cutting edge Clockwise flow into the corresponding grass channel.
割草机还包括连接在相邻的切割腔体的腔体壁之间的缺口8’,以使得相邻的切割腔体5”内的气流连通且减少腔体壁压草。该缺口8’包括自第一切割腔体501”的第一腔体侧壁与第三切割腔体502”的第三腔体侧壁之间向远离草面的方向凹陷形成的第一缺口83和自第二切割腔体502”的第二腔体侧壁与第三切割腔体503”的第三腔体侧壁之间向远离草面的方向凹陷形成的第二缺口84。该等缺口的设置:一方面,解决单个的切割腔内气流流动空间小,被切割的草很容易堵塞在切割腔体5”内的缺陷,有效地提高了割草机的割草和碎草效率,另一方面,减少了腔体侧壁压草而带来的漏草现象。The lawn mower further includes a gap 8' connected between the walls of the cavities of adjacent cutting cavities such that the airflow within the adjacent cutting cavities 5" communicates and reduces the wall of the cavities. a first notch 83 formed by recessing between a first cavity sidewall of the first cutting cavity 501" and a third cavity sidewall of the third cutting cavity 502" in a direction away from the grass surface and from the second a second notch 84 is formed between the sidewall of the second cavity of the cutting cavity 502" and the sidewall of the third cavity of the third cutting cavity 503" in a direction away from the surface of the grass. The setting of the notches: In terms of solving the problem that the flow space of the air in the single cutting chamber is small, the cut grass easily blocks the defects in the cutting cavity 5", effectively improving the mowing and grassing efficiency of the lawn mower, on the other hand, reducing The phenomenon of grass leakage caused by grass pressing on the side wall of the cavity.
图15为本发明的第十二实施例的割草机1””的结构图,第十二实施例中提供的割草机与第十一实施例及第一实施例的主要结构基本一致。与第十一实施例的差异在于,排草通道7””从切割腔体向壳体后部聚拢,切割件的旋转方向不同。如图15所示,第一排草通道701”’和第二排草通道702”’分别连接于第一切割腔体501”’和第二切割腔体502”’的外半侧,第一排草通道701”’和第二排草通道702”’的另一端向壳体2的纵轴线X-X靠拢,连接于壳体2后部的排草口9”’。具体的,第一排草通道701”’连接于第一切割腔体501”’的右半侧,沿顺时针方向向排草口9”’延伸,第一切割件沿顺时针方向旋转,被切割的碎草沿顺时针方向流入第一排草通道701”’,并经由第一排草通道701”’流入草箱。第二排草通道702”’连接于第二切割腔体502”’的左半侧,沿逆时针方向向排草口9”’延伸,第二切割件沿逆时针方向旋转,被切割的碎草沿逆时针方向流入第二排草通道702”’,并经由第二排草通道702”’流入草箱。第三排草通道 703”’的方向可以与第一排草通道701”’或者第二排草通道702”’的方向一致,第三切割件的旋转方向相应的与第一切割件或者第二切割件的旋转方向一致。本实施例中,排草通道7””从切割腔体5”’向壳体2后部聚拢,能够减小壳体的横向尺寸,使割草机1””的结构紧凑。与第一实施例的差异在于:割草机还包括连接在相邻的切割腔体的腔体壁之间的缺口8”,且该缺口8”向远离草面的方向凹陷形成。腔体壁包括顶壁及与顶壁连接且在周向上围绕切割件的腔体侧壁。在本实施例中,该缺口8”凹陷形成于相邻的所述切割腔体的腔体侧壁上,以使得切割腔体彼此独立的同时相邻的切割腔体内的气流通过设置的缺口实现流通及减小腔体壁压草,达到最佳的碎草及割草效果。Figure 15 is a structural view showing a lawn mower 1"" according to a twelfth embodiment of the present invention, and the lawn mower provided in the twelfth embodiment is substantially identical to the main structure of the eleventh embodiment and the first embodiment. The difference from the eleventh embodiment is that the grass discharge passage 7"" is gathered from the cutting cavity toward the rear of the casing, and the rotation directions of the cutting members are different. As shown in FIG. 15, the first row of grass channels 701"' and the second row of grass channels 702"' are respectively connected to the outer sides of the first cutting cavity 501"' and the second cutting cavity 502"', first The other end of the grass passage 701"' and the second row of grass passages 702"' is closer to the longitudinal axis XX of the casing 2, and is connected to the grass opening 9"' at the rear of the casing 2. Specifically, the first row of grass The channel 701"' is connected to the right half of the first cutting cavity 501"', extending clockwise toward the grass opening 9"', the first cutting member is rotated in a clockwise direction, and the cut grass is clockwise. The direction flows into the first row of grass passages 701"' and flows into the straw box via the first row of grass passages 701"'. The second row of grass passages 702"' is connected to the left half of the second cutting cavity 502"', extends counterclockwise toward the grass opening 9"', and the second cutting member rotates counterclockwise, and the cut is broken. The grass flows counterclockwise into the second row of grass channels 702"' and flows into the grass box via the second row of grass channels 702"'. The third row of grass channels The direction of 703"' may coincide with the direction of the first row of grass passages 701"' or the second row of grass passages 702"', and the direction of rotation of the third cutting member corresponds to the direction of rotation of the first cutting member or the second cutting member. In this embodiment, the grass discharge passage 7"" is gathered from the cutting cavity 5"' to the rear of the casing 2, which can reduce the lateral size of the casing and make the structure of the lawn mower 1"" compact. The difference from the first embodiment is that the lawn mower further includes a notch 8" connected between the walls of the cavity of the adjacent cutting cavity, and the notch 8" is recessed in a direction away from the grass surface. The cavity wall includes a top wall and a sidewall of the cavity that is coupled to the top wall and circumferentially surrounds the cutting member. In this embodiment, the notch 8" is recessed on the sidewall of the cavity of the adjacent cutting cavity, so that the cutting cavity is independent of each other while the airflow in the adjacent cutting cavity is realized by the gap provided. Circulate and reduce the wall of the cavity to achieve the best grass and mowing effect.
本发明不局限于所举的具体实施例结构,基于本发明构思的结构均属于本发明保护范围。 The present invention is not limited to the specific embodiment structures, and the structures based on the inventive concept are all within the scope of the present invention.

Claims (10)

  1. 一种割草机,包括:A lawn mower comprising:
    壳体,所述壳体具有平行于所述割草机的前进方向的纵向,以及平行于工作平面且垂直于所述割草机的前进方向的横向;a housing having a longitudinal direction parallel to a forward direction of the lawn mower and a transverse direction parallel to the working plane and perpendicular to a forward direction of the lawn mower;
    切割马达,安装于所述壳体,提供驱动力;其特征在于,a cutting motor mounted to the housing to provide a driving force;
    所述割草机包括至少2个切割件,所述切割件由所述切割马达驱动以旋转执行割草工作,其中至少2个所述切割件的切割范围沿所述壳体的纵向有重叠部分,所述壳体的纵向尺寸与横向尺寸的比值小于1.5。The lawn mower includes at least two cutting members driven by the cutting motor to perform a mowing operation in rotation, wherein at least two of the cutting members have a cutting range that overlaps in a longitudinal direction of the housing The ratio of the longitudinal dimension to the lateral dimension of the housing is less than 1.5.
  2. 根据权利要求1所述的割草机,其特征在于,所述割草机包括壳体,所述壳体具有平行于所述割草机的前进方向的纵向,以及平行于工作平面且垂直于所述割草机的前进方向的横向;切割马达,安装于所述壳体,提供驱动力;所述割草机包括至少3个切割件,所述切割件由所述切割马达驱动以旋转执行割草工作,其中至少2个所述切割件的切割范围沿所述壳体的纵向有重叠部分,所述壳体的纵向尺寸与横向尺寸的比值小于1.5。The lawn mower according to claim 1, wherein said lawn mower comprises a casing having a longitudinal direction parallel to a forward direction of said lawn mower, and parallel to a work plane and perpendicular to a lateral direction of the forward direction of the lawn mower; a cutting motor mounted to the housing to provide a driving force; the lawn mower includes at least 3 cutting members, the cutting member being driven by the cutting motor to perform rotation The mowing work, wherein the cutting range of at least two of the cutting members has an overlapping portion along the longitudinal direction of the casing, and the ratio of the longitudinal dimension to the lateral dimension of the casing is less than 1.5.
  3. 根据权利要求2所述的割草机,其特征在于,所述壳体的纵向尺寸与横向尺寸的比值小于1。The lawnmower according to claim 2, wherein the ratio of the longitudinal dimension to the lateral dimension of the housing is less than one.
  4. 根据权利要求1至3任意一项所述的割草机,其特征在于,所述割草机包括3个所述切割件,第一切割件和第二切割件设置在所述壳体的两侧,第三切割件设置在所述第一切割件和所述第二切割件之间,且设置在所述第一切割件和所述第二切割件的前侧。The lawn mower according to any one of claims 1 to 3, wherein the lawn mower includes three of the cutting members, and the first cutting member and the second cutting member are disposed on the two of the housings The third cutting member is disposed between the first cutting member and the second cutting member and disposed on a front side of the first cutting member and the second cutting member.
  5. 根据权利要求4所述的割草机,其特征在于,所述割草机还包括2个前轮,分别设置在所述第三切割件的两侧。The lawn mower according to claim 4, wherein the lawn mower further comprises two front wheels respectively disposed on both sides of the third cutting member.
  6. 根据权利要求4所述的割草机,其特征在于,所述第三切割件的切割直径小于所述第一切割件和/或所述第二切割件的切割直径。The lawn mower according to claim 4, wherein the third cutting member has a cutting diameter smaller than a cutting diameter of the first cutting member and/or the second cutting member.
  7. 根据权利要求1至3任意一项所述的割草机,其特征在于,所述割草机包括3个所述切割件,第一切割件和第二切割件设置在所述壳体的两侧,第三切割件设置在所述第一切割件和所述第二切割件之间,且设置在所述第一切割件和所述第二切割件的后侧。The lawn mower according to any one of claims 1 to 3, wherein the lawn mower includes three of the cutting members, and the first cutting member and the second cutting member are disposed on the two of the housings The third cutting member is disposed between the first cutting member and the second cutting member and disposed on a rear side of the first cutting member and the second cutting member.
  8. 根据权利要求7所述的割草机,其特征在于,所述割草机还包括1个前轮, 设置在所述第一切割件和所述第二切割件之间。The lawn mower according to claim 7, wherein said lawn mower further comprises a front wheel. Provided between the first cutting member and the second cutting member.
  9. 根据权利要求7所述的割草机,其特征在于,所述第三切割件的切割直径小于所述第一切割件和/或所述第二切割件的切割直径。The lawn mower according to claim 7, wherein the third cutting member has a cutting diameter smaller than a cutting diameter of the first cutting member and/or the second cutting member.
  10. 根据权利要求1至3任意一项所述的割草机,其特征在于,所述割草机包括至少3个切割马达,所述切割马达与所述切割件一一对应地连接。 The lawn mower according to any one of claims 1 to 3, wherein the lawn mower comprises at least three cutting motors, and the cutting motor is coupled to the cutting members in a one-to-one correspondence.
PCT/CN2016/110421 2015-12-16 2016-12-16 Lawn mower WO2017101859A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CN201510945539.9 2015-12-16
CN201510946537 2015-12-16
CN201510946537.1 2015-12-16
CN201510944908 2015-12-16
CN201510945539 2015-12-16
CN201510944908.2 2015-12-16
CN201610037177.8 2016-01-20
CN201610037177 2016-01-20

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20308457U1 (en) * 2003-05-30 2003-08-07 Arnold Gunter Battery-driven lawnmower has two or more disks, to each of which two cutter blades are attached, disks being mounted on bases of plastic cylinders surrounding drive shafts
WO2010062199A2 (en) * 2008-11-26 2010-06-03 Aire Cut Company Limited Mowers
CN202722032U (en) * 2012-07-23 2013-02-13 宁波万融电器有限公司 Hand push type grass cutter
CN103733801A (en) * 2014-01-02 2014-04-23 上海大学 Combined intelligent mowing robot
CN203708827U (en) * 2014-03-04 2014-07-16 昆山市海光绿化发展有限公司 Multi-blade mower
CN203814199U (en) * 2014-04-30 2014-09-10 福州大学 Fine regulating device for height of mowing robot

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20308457U1 (en) * 2003-05-30 2003-08-07 Arnold Gunter Battery-driven lawnmower has two or more disks, to each of which two cutter blades are attached, disks being mounted on bases of plastic cylinders surrounding drive shafts
WO2010062199A2 (en) * 2008-11-26 2010-06-03 Aire Cut Company Limited Mowers
CN202722032U (en) * 2012-07-23 2013-02-13 宁波万融电器有限公司 Hand push type grass cutter
CN103733801A (en) * 2014-01-02 2014-04-23 上海大学 Combined intelligent mowing robot
CN203708827U (en) * 2014-03-04 2014-07-16 昆山市海光绿化发展有限公司 Multi-blade mower
CN203814199U (en) * 2014-04-30 2014-09-10 福州大学 Fine regulating device for height of mowing robot

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