WO2024082509A1 - 一种链锯总成 - Google Patents

一种链锯总成 Download PDF

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Publication number
WO2024082509A1
WO2024082509A1 PCT/CN2023/078587 CN2023078587W WO2024082509A1 WO 2024082509 A1 WO2024082509 A1 WO 2024082509A1 CN 2023078587 W CN2023078587 W CN 2023078587W WO 2024082509 A1 WO2024082509 A1 WO 2024082509A1
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WO
WIPO (PCT)
Prior art keywords
guide plate
transmission
plate
blade
chain
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Application number
PCT/CN2023/078587
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English (en)
French (fr)
Inventor
王泉福
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杭州精锋园林工具有限公司
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Application filed by 杭州精锋园林工具有限公司 filed Critical 杭州精锋园林工具有限公司
Publication of WO2024082509A1 publication Critical patent/WO2024082509A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D57/00—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00
    • B23D57/02—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00 with chain saws

Definitions

  • the present invention relates to the technical field of chain saws, in particular to a chain saw assembly
  • a chainsaw also known as an oil saw, is a portable saw (cutting machine) powered by a gasoline engine. It is mainly used for logging and timber making. Its working principle is to perform shearing by the lateral movement of the staggered L-shaped blades on the saw chain.
  • a chainsaw assembly generally includes a saw chain and a guide plate, and the saw chain includes a transmission plate, a connecting plate and a blade; the specific structure of the chainsaw assembly is disclosed in "Patent No. 202220055847X, patent name is saw chain and lithium electric saw suitable for lithium electric saw", “Patent No. 202110694940.5, patent name is an electric chain saw assembly", “Patent No. 2020102854011, patent name is saw chain connecting plate, saw chain and saw chain transmission system” and “Patent No. 202010256289.9, patent name is saw chain special for light lithium battery”.
  • the saw chain When the saw chain is working, it needs to rotate at high speed around the guide bar, so the connection between the saw chain and the guide bar will wear. When the wear is severe, it will affect the cutting efficiency. Therefore, in addition to the wear of the blade, the wear between the saw chain and the guide bar also affects the service life of the entire saw chain.
  • the purpose of the present invention is to solve the problems in the prior art and to provide a chain saw assembly and a cutting machine, which can effectively extend the service life of the saw chain assembly.
  • a chain saw assembly comprises a guide plate and a saw chain, wherein the guide plate is provided with a guide plate groove, and the saw chain is arranged at the guide plate groove to realize rotation around the periphery of the guide plate, and the saw chain comprises a transmission plate and a connecting plate which are connected in a head-to-tail rotation manner in sequence, and a blade located at the side of the transmission plate; the characteristic is that: the guide plate is a metal guide plate; the transmission plate is inserted in the guide plate groove of the metal guide plate, and a friction part is provided at the bottom of the transmission plate, and the friction part contacts and slides with the bottom of the guide plate groove.
  • the two transmission plates are connected by connecting plates on both sides thereof; a supporting portion is provided on the connecting plate, and the supporting portion is suspended above the guide plate, and a gap is left between the supporting portion at the connecting plate and the surface of the metal guide plate during installation; when the bottom of the transmission plate and the bottom of the guide plate groove of the metal guide plate slide and wear, the transmission plate sinks and rests on the surface of the metal guide plate with the supporting portion on the connecting plate, and forms a sliding fit with the surface of the metal guide plate.
  • the contact surface between the friction part and the bottom surface of the guide plate groove of the metal guide plate is a plane or an arc surface.
  • the plane or arc surface can make the transmission plate and the bottom surface of the guide plate groove slide more smoothly.
  • both ends of the friction portion on the transmission plate are chamfered, and the radius of the chamfer is 0.1-10 mm.
  • a limit block protruding upward is provided at the top of the transmission plate, and the height of the limit block is lower than the height of the blade.
  • each transmission plate is provided with a limit block.
  • a limit block protruding upward is provided at the top of any transmission piece connected to the same connecting piece, and the height of the limit block is lower than the height of the blade. Since the limit block protruding upward is provided on the transmission piece, firstly, the production process needs to be increased, secondly, the production difficulty is increased, and thirdly, the manufacturing cost is increased.
  • one of the two transmission pieces connected by the same connecting piece is provided with a limit block, which can reduce the manufacturing cost, and there is no need to provide an upwardly protruding limit block on each transmission piece. During production, only half of the transmission pieces with limit blocks need to be produced.
  • the blade comprises a left blade and a right blade, and the left blade and the right blade are alternately arranged on both sides of the transmission plate in sequence.
  • the depth of the guide plate groove of the metal guide plate is 3.16 mm.
  • the distance between the connecting piece and the surface of the metal guide plate is 0-1 mm, wherein the distance represents the distance between the connecting piece and the surface of the guide plate in the first working state (ie, the initial state).
  • the connecting pieces are arranged in a completely symmetrical structure, with the left and right sides and the top and bottom being consistent, and each bottom side is provided with a concave arc.
  • the chain saw assembly in this application includes two working states:
  • the first working state (also the initial working state) is that in the first working state, the friction part arranged at the bottom of the transmission plate contacts and slides with the bottom of the guide plate groove to realize the rotation of the saw chain around the periphery of the guide plate. In the first working state, the friction part at the bottom of the transmission plate contacts and rubs with the metal guide plate as the force point between the saw chain and the guide plate when the saw chain rotates around the periphery of the guide plate.
  • the second working state is started after the friction part at the bottom of the transmission plate is worn to a certain extent.
  • the transmission plate sinks, bringing the connecting plate connected to the transmission plate down, so that the support part at the connecting plate forms a sliding fit with the peripheral surface of the guide plate, and begins to bear the second force point between the guide plate and the saw chain when the saw chain rotates around the periphery of the guide plate.
  • the second working state is formed in which the friction part of the transmission plate and the support part of the connecting plate form a sliding fit with the guide plate.
  • the second working state is entered to use the support part to reduce and bear the friction between the support part and the guide bar, so that the support part and the bottom surface of the guide bar groove can slide for a longer time, thereby extending the service life of the saw chain assembly.
  • the friction part and the support part can also be made of friction-resistant material to further extend the service life.
  • FIG1 is a schematic diagram of the guide plate structure of the present invention.
  • FIG2 is a schematic diagram of the side structure of the guide plate of the present invention.
  • FIG3 is a schematic diagram of the saw chain structure of the present invention.
  • FIG4 is a schematic diagram of the structure of a first transmission plate of the present invention.
  • FIG5 is a schematic diagram of the structure of a second transmission plate of the present invention.
  • FIG6 is a schematic diagram of the structure of the connecting piece of the present invention.
  • FIG7 is a schematic diagram of the structure of the saw chain of the present invention when it is arranged on a guide plate;
  • FIG8 is a schematic diagram of the structure of the saw chain arranged on the side of the guide plate in the first working state of the present invention.
  • FIG. 9 is a schematic diagram of the structure of the saw chain disposed on the side of the guide plate in the second working state of the present invention.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • this embodiment provides a chain saw assembly, including a metal guide plate 1 and a saw chain.
  • the metal guide plate 1 is provided with a guide plate groove 11, and the saw chain is arranged at the guide plate groove 11 to achieve rotation around the periphery of the metal guide plate 1;
  • the saw chain includes a transmission plate 2 and a connecting plate 3 that are rotatably connected in sequence end to end, and a blade 4 located on the side of the transmission plate 2.
  • the transmission piece 2 is inserted into the guide plate groove 11, and a friction part 21 is provided at the bottom of the transmission piece 2.
  • the friction part 21 contacts and slides with the bottom of the guide plate groove 11, so that the saw chain is arranged at the guide plate groove 11 and rotates around the periphery of the metal guide plate 1.
  • the contact surface between the friction part 21 at the bottom of the transmission piece 2 and the bottom of the guide plate groove 11 is a plane (or an arc surface), and chamfers are provided at both ends of the friction part 21, and the radius of the chamfer is R1.00mm.
  • the above-mentioned transmission piece 2 structure can make the transmission piece 2 and the bottom of the guide plate groove 11 slide more smoothly, and at the same time avoid excessive friction between the friction part 21 and the bottom of the guide plate groove 11, so that the friction part 21 wears too fast and affects the service life of the chain saw assembly.
  • the two transmission plates 2 are connected by connecting plates 3 on both sides thereof; the connecting plates 3 are arranged in a completely symmetrical structure, and are consistent left and right and up and down, and each of the lower sides is provided with a concave arc.
  • the connecting plates 3 are suspended above the metal guide plate 1, and a support portion 31 is provided at the bottom. When installed, a gap 6 is left between the support portion 31 and the surface of the metal guide plate 1.
  • the friction part 21 on the transmission plate 2 and the guide plate groove 11 are in bottom contact and sliding fit with each other, and the support part 31 on the connecting plate 3 does not contact the peripheral surface of the metal guide plate 1, forming the first working state, which is also the first working state when the saw chain is installed on the metal guide plate. 1 on the initial working state.
  • the transmission plate 2 sinks and brings the support part 31 on the connecting plate 3 to rest on the surface of the metal guide plate 1 and form a sliding fit with the surface of the metal guide plate 1.
  • the transmission plate 2 enters the second working state.
  • the friction part 21 is still in contact with the bottom of the guide plate groove 11 and slides with it.
  • the support part 31 at the bottom of the connecting plate 3 forms a sliding fit with the peripheral surface of the metal guide plate 1. Since both sides of the transmission plate 2 are provided with connecting plates 3, the connecting plates 3 on both sides form a sliding fit with the peripheral surface of the metal guide plate 1.
  • the depth of the guide plate groove 11 can be 3.16 mm
  • the gap 6 between the support portion 31 at the bottom of the connecting plate 3 and the surface of the metal guide plate 1 can be 0.51 mm
  • the chamfer radius at both ends of the friction portion 21 at the bottom of the transmission plate 2 can be R1.00 mm.
  • a limit block 22 protruding upward is provided at the top of the transmission piece 2, and the height of the limit block 22 is lower than the height of the blade 4. Specifically, the highest point of the upper limit block 22 in the vertical height is lower than the cutting edge height of the blade 4.
  • the transmission piece 2 can include two structures. The first transmission piece 2 does not have the above-mentioned limit block 22, and the second transmission piece 2 has the above-mentioned limit block 22. There are also two schemes when it is installed into a saw chain. The first saw chain is equipped with all transmission pieces 2 with limit blocks 22.
  • any transmission piece 2 connected to the same connecting piece 3 is provided with a limit block 22 protruding upward at the top. That is, one of the two transmission pieces 2 connected to the same connecting piece 3 uses a transmission piece 2 with a limit block 22, and the other does not have a limit block 22. Since the upwardly protruding limit block 22 is provided on the transmission piece 2, firstly, the production process is increased, secondly, the production difficulty is increased, and thirdly, the manufacturing cost is increased. In this solution, one of the two transmission pieces 2 connected by the same connecting piece 3 is provided with a limit block 22, which can reduce the manufacturing cost, and it is not necessary to provide an upwardly protruding limit block 22 on each transmission piece 2. During production, only half of the transmission pieces 2 with limit blocks need to be produced.
  • the two transmission plates 2 are connected by a connecting plate 3, and there are connecting plates 3 on both sides of the transmission plate 2.
  • the transmission plate 2 and the connecting plate 3 are connected by a chain shaft, wherein the blade 4 includes a left blade 4 and a right blade 4, and the left blade 4 and the right blade 4 are alternately arranged on both sides of the transmission plate 2.
  • the left blade 4 and the right blade 4 are not arranged continuously, and the left blade 4 and the right blade 4 are alternately arranged with at least one connecting plate 3 between them.
  • a chain shaft hole 5 is provided at the connecting part of the transmission plate 2, and the transmission plate 2 and the connecting plate 3, as well as the transmission plate 2 and the blade 4 are connected by a chain shaft.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the depth of the guide plate groove 11 can be 3.16 mm
  • the gap 6 between the support portion 31 at the bottom of the connecting plate 3 and the surface of the metal guide plate 1 can be 0.1 mm
  • the chamfer radius at both ends of the friction portion 21 at the bottom of the transmission plate 2 can be R0.1 mm.
  • the depth of the guide plate groove 11 can be 3.16 mm
  • the gap 6 between the support portion 31 at the bottom of the connecting plate 3 and the surface of the metal guide plate 1 can be 1 mm
  • the chamfer radius at both ends of the friction portion 21 at the bottom of the transmission plate 2 can be R10 mm.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)

Abstract

一种链锯总成，包括导板（1）和锯链，导板（1）上设有导板槽（11），锯链通过布置在导板槽（11）处实现环绕导板（1）周缘转动，锯链包括依次首尾转动式连接的传动片（2）和连接片（3），及位于传动片（2）侧部的刀片（4）；传动片（2）插设在导板槽（11）内，传动片（2）底部设有摩擦部（21），摩擦部（21）与导板槽（11）底部相接触且滑动配合。这种设置能够有效的延长锯链总成和导板的使用寿命。

Description

一种链锯总成 技术领域
本发明涉及链锯技术领域，尤其是一种链锯总成
背景技术
链锯也称油锯，是以汽油机为动力的手提锯(切割机)，主要用于伐木和造材，其工作原理是靠锯链上交错的L形刀片横向运动来进行剪切动作。
链锯总成一般包括锯链和导板，锯链包括传动片、连接片和刀片；在“专利号为202220055847X，专利名称为适用于锂电锯的锯链及锂电锯”、“专利号为202110694940.5，专利名称为一种电链锯总成”、“专利号为2020102854011，专利名称为锯链连接片、锯链及锯链传动系统”“专利号为202010256289.9，专利名称为轻型锂电池专用锯链”中均公开了链锯总成的具体结构。
其中在锯链工作时，需要环绕导板进行高速转动，因此锯链与导板之间的连接部位会进行磨损，当其磨损严重时会影响切割效率，因此除了刀片的磨损之外，锯链与导板之间的磨损也影响了整体锯链的使用寿命。
发明内容
本发明的目的就是解决现有技术中的问题，提出一种链锯总及切割机，能够有效的延长锯链总成的使用寿命。
本发明解决上述技术问题所采用的技术方案为:
一种链锯总成，包括导板和锯链，所述导板上设有导板槽，所述锯链通过布置在导板槽处、以实现环绕导板周缘转动，所述锯链包括依次首尾转动式连接的传动片和连接片，及位于传动片侧部的刀片；其特征在于：所述导板为金属导板；所述传动片插设在所述金属导板的导板槽内，所述传动片底部设有摩擦部，该摩擦部与导板槽底部相接触且滑动配合。
作为优选：所述两个传动片之间通过位于其两侧的连接片相连接；所述连接片上设有支撑部，该支撑部悬设于导板上方，安装时所述连接片处的支撑部与金属导板表面之间留有间隙；当所述传动片底部与金属导板的导板槽底部滑动磨损后，该传动片下沉且带着所述连接片上的支撑部搭靠在金属导板表面、并与金属导板表面形成滑动配合。
作为优选：所述摩擦部与金属导板的导板槽槽底面的接触面为平面或弧面。平面或弧面的设置可以让传动片和导板槽底部滑动更加顺畅。
作为优选：所述传动片上摩擦部的两端分别设有倒角，该倒角的半径为0.1-10mm。
作为优选：所述传动片顶端设有向上凸起的限位块，该限位块高度低于刀片高度。本方案中每个传动片上都设置有限位块。
作为优选：与同一连接片相连接的任一传动片顶端设有向上凸起的限位块，该限位块高度低于刀片高度。由于在传动片上开设向上凸起的限位块，第一要增加生产工序，第二也提高了生产难度，第三提高制造成本，本方案中同一个连接片连接的两个传动片中的其中一个上带有限位块，这样可以减少制造成本，不需要再每一个传动片上都设置一个向上凸起的限位块。生产制作时只需要对半生产带有限位块的传动片即可。
作为优选：所述刀片包括左刀片和右刀片，所述左刀片和右刀片分别依次交替布置在传动片两侧。
作为优选：所述金属导板的导板槽的深度为3.16mm。
作为优选：所述连接片与金属导板表面之间的距离为0-1mm。其中该距离表示的是在第一种工作状态下(即初始状态下)连接片与导板表面之间的距离。
作为优选：所述连接片按中心完全对称形式的结构布置，左右上下一致，其中下边各设有一个凹弧。本发明的有益效果是：
本申请中的链锯总成包括了两种工作状态：
第一种工作状态(也为初始工作状态)，在第一种工作状态下通过传动片底部设置的摩擦部和导板槽底部接触且滑动配合，实现锯链环绕导板周缘转动，在第一种工作状态下是通过传动片底部的摩擦部与金属导板相接触摩擦作为在锯链环绕导板周缘转动时和导板之间的受力点。
第二种工作状态是在传动片底部的摩擦部被消磨到一定程度后启动，由于摩擦部被磨损传动片下沉，带着连接在传动片上的连接片下降，使得连接片处的支撑部与导板周缘表面形成滑动配合，并开始承担作为在锯链环绕导板周缘转动时和导板之间的第二受力点。形成了传动片的摩擦部和连接片的支撑部均和导板形成滑动配合的第二工作状态。
其中在支撑部与导板周缘表面形成滑动配合时，摩擦部依旧与导板槽底部相接触摩擦，同时传动片的两侧均设有连接片，因此导板的左右两侧周缘表面均会受到支撑部的滑动摩擦，因此在第二种工作状态下形成共三方受力的形式。其中支撑部的滑动摩擦减轻了摩擦部与导板槽底部的摩擦力，使得摩擦部与导板槽底的使用时间更长。
通过上述的两种工作状态，在第一种工作状态下摩擦部磨损一定程度后，进入第二种工作状态用支撑部去减轻和承担支撑部与导板的摩擦，使得支撑部和导板槽底面之间可以滑动使用的更加长久，实现延长锯链总成的使用寿命。
同时摩擦部和支撑部还可以设置为由耐摩擦材质制成进一步延长使用寿命。
附图说明
图1为本发明导板结构示意图；
图2为本发明导板侧部结构示意图；
图3为本发明锯链结构示意图；
图4为本发明第一种传动片结构示意图；
图5为本发明第二种传动片结构示意图；
图6为本发明连接片结构示意图；
图7为本发明锯链设置在导板上时的结构示意图；
图8为本发明为第一种工作状态下锯链设置在导板上侧部结构示意图；
图9为本发明为第二种工作状态下锯链设置在导板上侧部结构示意图。
图中：1金属导板、11导板槽、2传动片、21摩擦部、22限位块、3连接片、31支撑部、4刀片、5链轴孔、6间隙。
具体实施方式
下面结合附图对本发明作进一步描述：
实施例一：
如图1-9所示，本实施例提供一种链锯总成，包括金属导板1和锯链，金属导板1上设有导板槽11，锯链通过布置在导板槽11处、以实现环绕金属导板1周缘转动；锯链包括依次首尾转动式连接的传动片2和连接片3，及位于传动片2侧部的刀片4。
其中通过传动片2插设在导板槽11内，传动片2底部设有摩擦部21，该摩擦部21与导板槽11底部相接触且滑动配合，以实现锯链布置在导板槽11处、并以实现环绕金属导板1周缘转动。其中如图4所示传动片2底部的摩擦部21与导板槽11槽底面的接触面为平面(也可以为弧面)，且摩擦部21的两端分别设有倒角，该倒角的半径为R1.00mm，通过上述传动片2结构的设置可以使得传动片2和导板槽11底部滑动时更加的顺畅，同时避免了摩擦部21和导板槽11槽底过度摩擦，使得摩擦部21磨损太快进而影响链锯总成的使用寿命。
其中两个传动片2之间通过位于其两侧的连接片3相连接；连接片3按中心完全对称形式的结构布置，左右上下一致，其中下边各设有一个凹弧。该连接片3悬设于金属导板1上方，且底部设有支撑部31，该安装时支撑部31与金属导板1表面之间留有间隙6。
通过上述传动片2上的摩擦部21和导板槽11相互底部接触且滑动配合，同时连接片3上的支撑部31不与金属导板1周缘表面相接触，形成了第一种工作状态，也为锯链在安装在金属导板 1上的初始工作状态。
在第一种工作状态持续工作到传动片2底部的摩擦部21被磨损到一定程度后，传动片2下沉且带着连接片3上的支撑部31搭靠在金属导板1表面、并与金属导板1表面形成滑动配合。这时便进入第二种工作状态，在第二种工作状态中，摩擦部21依旧与导板槽11底部相接触且滑动配合，同时连接片3底部的支撑部31与金属导板1周缘表面形成滑动配合，其中由于传动片2的两侧均设有连接片3，两侧的连接片3均与金属导板1周缘表面形成滑动配合，因此第二工作状态下，会形成三方受力的局面，有三方共同分担锯链和金属导板1之间的力，这样便将力分担成三方去分别承担，也进一步的减少了传动片2底部的摩擦部21和导板槽11底部之间的滑动摩擦力。使得传动片2与导板槽11之间可以使用的更加长久，通过上述两种工作状态得以实现延长链锯总成在使用寿命。
其中为了在实际生产安装中，导板槽11的深度可以为3.16mm，连接片3底部的支撑部31和金属导板1表面之间的间隙6为可以为0.51mm，传动片2底部的摩擦部21的两端的倒角半径可以为R1.00mm。
为了在锯链总成实际工作中，为了控制刀片4每次切割的深度，在传动片2顶端设有向上凸起的限位块22，该限位块22高度低于刀片4高度。具体的在垂直高度上限位块22的最高点低于刀片4切割的刀刃高度。需要说明的传动片2包括可以有两种结构，第一种传动片2没有上述的限位块22，第二种传动片2带有上述的限位块22，安装成锯链时也有两种方案，第一种锯链上的全部都采用带有限位块22的传动片2去设置。也可以是第二种在同一连接片3相连接的任一传动片2顶端设有向上凸起的限位块22。即同一个连接片3连接的两个传动片2其中一个采用带有限位块22的传动片2，另一种不带限位块22。由于在传动片2上开设向上凸起的限位块22，第一要增加生产工序，第二也提高了生产难度，第三提高制造成本，本方案中同一个连接片3连接的两个传动片2中的其中一个上带有限位块22，这样可以减少制造成本，不需要再每一个传动片2上都设置一个向上凸起的限位块22。生产制作时只需要对半生产带有限位块的传动片2即可。
需要说明的是，实际安装中，两个传动片2之间通过连接片3连接、且在传动片2的两侧均有连接片3相连接，同时传动片2和连接片3之间通过链轴连接，其中刀片4包括了左刀片4和右刀片4，左刀片4和右刀片4交替布置在传动片2的两侧，需要说明的是左刀片4和右刀片4并不是连续布置的，左刀片4和右刀片4之间至少相隔一个连接片3进行交替布置，实际安装时在传动片2的连接部设有链轴孔5，传动片2和连接片3之间、及传动片2和刀片4之间均通过链轴进行连接。
实施例二：
本实施例与实施例一的区别在于：其中为了在实际生产安装中，导板槽11的深度可以为3.16mm，连接片3底部的支撑部31和金属导板1表面之间的间隙6为可以为0.1mm，传动片2底部的摩擦部21的两端的倒角半径可以为R0.1mm。
实施例三：
本实施例与实施例一的区别在于：其中为了在实际生产安装中，导板槽11的深度可以为3.16mm，连接片3底部的支撑部31和金属导板1表面之间的间隙6为可以为1mm，传动片2底部的摩擦部21的两端的倒角半径可以为R10mm。
上述实施例是对本发明的说明，不是对本发明的限定，任何对本发明简单变换后的方案均属于本发明的保护范围。

Claims (10)

  1. 一种链锯总成，包括导板和锯链，所述导板上设有导板槽，所述锯链通过布置在导板槽处、以实现环绕导板周缘转动，所述锯链包括依次首尾转动式连接的传动片和连接片，及位于传动片侧部的刀片；其特征在于：
    所述导板为金属导板；所述传动片插设在所述金属导板的导板槽内，所述传动片底部设有摩擦部，该摩擦部与导板槽底部相接触且滑动配合。
  2. 根据权利要求1所述的一种链锯总成，其特征在于：所述两个传动片之间通过位于其两侧的连接片相连接；所述连接片上设有支撑部，该支撑部悬设于导板上方，安装时所述连接片处的支撑部与金属导板表面之间留有间隙；
    当所述传动片底部与金属导板的导板槽底部滑动磨损后，该传动片下沉且带着所述连接片上的支撑部搭靠在金属导板表面、并与金属导板表面形成滑动配合。
  3. 根据权利要求1所述的一种链锯总成，其特征在于：所述摩擦部与金属导板的导板槽槽底面的接触面为平面或弧面。
  4. 根据权利要求1所述的一种链锯总成，其特征在于：所述传动片上摩擦部的两端分别设有倒角，该倒角的半径为0.1-10mm。
  5. 根据权利要求1所述的一种链锯总成，其特征在于：所述传动片顶端设有向上凸起的限位块，该限位块高度低于刀片高度。
  6. 根据权利要求1所述的一种链锯总成，其特征在于：与同一连接片相连接的任一传动片顶端设有向上凸起的限位块，该限位块高度低于刀片高度。
  7. 根据权利要求1所述的一种链锯总成，其特征在于：所述刀片包括左刀片和右刀片，所述左刀片和右刀片分别依次交替布置在传动片两侧。
  8. 根据权利要求1所述的一种链锯总成，其特征在于：所述金属导板的导板槽的深度为3.16mm。
  9. 根据权利要求1所述的一种链锯总成，其特征在于：所述连接片与金属导板表面之间的距离为0-1mm。
  10. 根据权利要求1所述的一种链锯总成，其特征在于：所述连接片按中心完全对称形式的结构布置，左右上下一致，其中下边各设有一个凹弧。
PCT/CN2023/078587 2022-10-20 2023-02-28 一种链锯总成 WO2024082509A1 (zh)

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CN115533207A (zh) * 2022-10-20 2022-12-30 杭州精锋园林工具有限公司 一种链锯总成
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