A toothed chain, an electric saw and a cutting device

Abstract

The application discloses a saw chain, an electric saw and a cutting device, and relates to the technical field of felling and removing obstacles, which comprises a chain assembly and a sawtooth assembly embedded on the peripheral surface of the chain assembly; the chain assembly comprises a plurality of chain links, and the plurality of chain links are arranged in a ring shape and can be wound on a chain wheel; the sawtooth assembly comprises a steel wire, a sawtooth piece for cutting objects, and a connecting piece for connecting the steel wire and the chain assembly. The steel wire is divided into a plurality of cutting units with the same length by the sawtooth piece, the sawtooth piece is selected to be a flat tooth, each cutting unit comprises an assembly area and a chip removal area, the spacing between adjacent sawtooth pieces is increased, and the generated chippings can be quickly removed in the cutting process, so that the problem that the existing sawtooth hook shape design is easily hooked by bamboo fibers and causes the saw chain to be stuck or to be disconnected is solved.

Description

Technical Field

[0001] This invention relates to the field of logging and obstacle removal technology, and in particular to a toothed chain, an electric saw, and a cutting device. Background Technology

[0002] Bamboo and wood pose multiple threats to power grid safety. For example, rapid growth or severe weather can cause them to come into contact with power lines, leading to short circuits and tripping, resulting in power outages.

[0003] When processing bamboo, traditional chainsaws and electric saws often face challenges due to the excellent tensile strength, elasticity, and toughness of the bamboo fibers within the bamboo. The hook-shaped and overly prominent teeth of the saw are easily caught by the bamboo fibers, causing the chain to jam or detach and fly off. This not only reduces work efficiency but also increases the safety risks for operators. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problem that traditional chainsaws and electric saws are prone to getting caught on bamboo fibers during the sawing of bamboo and wood due to the design of the saw teeth hooks, which can cause the saw chain to jam or fly off, this invention is proposed.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a sawtooth chain, comprising a chain assembly and a sawtooth assembly nested on the outer circumferential surface of the chain assembly; the chain assembly includes multiple sets of chain links, which are arranged in a ring and can be wound onto a sprocket; the sawtooth assembly includes a steel wire, saw teeth for cutting objects, and connectors for connecting the steel wire and the chain assembly; wherein the steel wire is arranged in a ring along the circumferential trajectory of the chain assembly on the side of the chain links away from the sprocket, and the steel wire rotates synchronously with the chain assembly; the saw teeth and connectors are both arranged along the installation trajectory of the steel wire.

[0007] As a preferred embodiment of the sawtooth chain of the present invention, the sawtooth assembly comprises two sets and has a symmetrical structure.

[0008] As a preferred embodiment of the sawtooth chain of the present invention, the sawtooth component includes a first sawtooth and a second sawtooth; wherein the two first sawtooths respectively disposed on the two steel wires are arranged in parallel, and the two second sawtooths respectively disposed on the two steel wires are arranged on the side opposite to the two first sawtooths.

[0009] In a preferred embodiment of the sawtooth chain of the present invention, the first sawtooth and the second sawtooth have the same structure and are both plate-shaped.

[0010] As a preferred embodiment of the sawtooth chain of the present invention, wherein: the sawtooth component divides the steel wire into several cutting units of equal length, and the two first saw teeth and the two second saw teeth in any cutting unit are fan-shaped.

[0011] As a preferred embodiment of the sawtooth chain of the present invention, the cutting unit includes an assembly area and a chip removal area; wherein the sawtooth component is disposed in the assembly area, and the length of the chip removal area is 0.5 to 1.2 times the length of the assembly area.

[0012] As a preferred embodiment of the sawtooth chain of the present invention, the chain link includes a meshing plate, a connecting plate, and a connecting shaft for connecting the meshing plate and the connecting plate.

[0013] As a preferred embodiment of the sawtooth chain of the present invention, the sawtooth component is triangular and has a movable end; wherein, the movable end of the first sawtooth intersects the perpendicular line of the steel wire at the axis of the connecting shaft perpendicularly; the movable end of the second sawtooth intersects the perpendicular line of the steel wire at the axis of the connecting shaft at an angle β, wherein the angle β is ≥35 degrees and ≤75 degrees.

[0014] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an electric saw, including the aforementioned saw tooth chain.

[0015] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a cutting device, including the aforementioned toothed chain.

[0016] The beneficial effects of the present invention are as follows: The present invention divides the steel wire into several cutting units of the same length by means of saw teeth. The saw teeth are flat teeth. Each cutting unit includes an assembly area and a chip removal area, thereby increasing the distance between adjacent saw teeth and enabling the chips generated during the cutting process to be quickly removed. This solves the problem that the existing saw tooth hook design is easily hooked by bamboo fibers, causing the saw chain to jam or detach. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a partial structural diagram of the sawtooth chain described in this invention.

[0019] Figure 2 This invention provides a schematic diagram of the structure of the chain assembly and the sawtooth assembly in the sawtooth chain.

[0020] Figure 3 This is a side view of the chain assembly and saw tooth assembly in the saw tooth chain of the present invention.

[0021] Figure 4 This is a schematic diagram of the overall structure of the sawtooth chain described in this invention.

[0022] Figure 5 This is a front view of the sawtooth chain described in this invention.

[0023] In the diagram: 100, chain assembly; 101, chain link; 102, meshing plate; 103, connecting plate; 104, connecting shaft; 200, sawtooth assembly; 201, wire strip; 202, sawtooth component; 202a, first sawtooth; 202b, second sawtooth; T, moving end; 203, connector; 204, cutting unit; 204a, assembly area; 204b, chip removal area; 300, sprocket. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0027] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include the three-dimensional spatial dimensions of length, width, and depth.

[0028] This invention relates to a cutting device, which is mainly used for cutting bamboo, branches and other wood, removing excessively tall trees around the power grid, and maintaining the safety of the power grid. Specifically, it is an electric saw, which includes a toothed chain. When in use, the outer teeth of the toothed chain contact and collide with the surface of the object, and rotate at high speed under the drive of a motor to cut the object.

[0029] Example 1

[0030] Reference Figures 1-5 The first embodiment of the present invention provides a toothed chain, including a chain assembly 100 and a toothed assembly 200 nested on the outer peripheral surface of the chain assembly 100.

[0031] Specifically, the chain assembly 100 includes multiple sets of chain links 101 arranged in a ring and capable of being wound onto a sprocket 300; the sprocket 300 is connected to the output end of the motor via a connecting shaft 104. Each chain link 101 includes a meshing plate 102, a connecting plate 103, and a connecting shaft 104 for connecting the meshing plate 102 and the connecting plate 103. In use, the motor starts, driving the sprocket 300 and the chain wound onto it to rotate. The serrations located on the outer side of the chain cut the object under the high-speed rotation of the chain.

[0032] Furthermore, the sawing assembly 200 includes a steel wire strip 201, saw teeth 202, and a connector 203; wherein, the steel wire strip 201 is nested on the outside of the chain assembly 100, which is composed of multiple sets of chain links 101 arranged in a ring, and can move synchronously with the chain assembly 100; the saw teeth 202 is used to cut objects, such as pillars, trees, and other wood; the connector 203 is used to connect the steel wire strip 201 and the chain assembly 100, and the connector 203 is disposed between the chain assembly 100 and the steel wire strip 201. One end of the connector 203 is fixedly connected to the chain link 101 plate on the adjacent chain assembly 100, such as by welding, and the other end of the connector 203 is provided with an arc-shaped groove that can engage the steel wire strip 201.

[0033] Meanwhile, to prevent the wire strip 201 from lagging behind after the motor starts or stops, that is, the wire strip 201 cannot operate synchronously with the chain assembly 100, causing the connector 203 to collide with the serrated part 202 on the wire strip 201, or even causing the wire strip 201 to derail, a flange is usually provided on the wire strip 201 to hold the two ends of the arc groove corresponding to the connector 203, or after the wire strip 201 is embedded in the arc groove, it is fixed by welding with a welding gun at the parts of the arc groove that contact the wire strip 201.

[0034] Specifically, the steel wire 201 is arranged in a ring along the circumferential trajectory of the chain assembly 100 on the side of the chain link 101 away from the sprocket 300, and the steel wire 201 moves synchronously with the chain assembly 100.

[0035] As a further improvement, both the saw teeth 202 and the connector 203 are arranged along the installation trajectory of the wire strip 201 to ensure stable connection and to ensure that the cutting is not stuck during cutting.

[0036] Example 2

[0037] Reference Figures 1-5 This is the second embodiment of the present invention, which differs from the first embodiment in that the saw tooth assembly 200 has two sets and is structurally symmetrical. This arrangement allows the device to form at least two similar cutting surfaces when cutting wood, improving obstacle removal efficiency.

[0038] Specifically, the saw tooth 202 includes a first saw tooth 202a and a second saw tooth 202b; wherein, the two first saw teeth 202a respectively disposed on the two steel wires 201 are arranged in parallel, and the two second saw teeth 202b respectively disposed on the two steel wires 201 are arranged on the side opposite to the two first saw teeth 202a.

[0039] As a further improvement, the saw teeth 202 divide the steel wire 201 into several cutting units 204 of equal length. Within any cutting unit 204, the two first saw teeth 202a and the two second saw teeth 202b are arranged in a fan shape. This configuration allows the device to create a triangular cutting area on the tree when cutting it. By sawing triangular cuts into the trunk, the direction in which the tree falls can be controlled, preventing accidental injury when it falls.

[0040] Specifically, the saw tooth 202 is triangular and has a movable end T; the movable end T of the first saw tooth 202a intersects the perpendicular line of the steel wire 201 at the axis of the connecting shaft 104; the movable end T of the second saw tooth 202b intersects the perpendicular line of the steel wire 201 at an angle β at the axis of the connecting shaft 104, where the angle β is between 35° and 75°.

[0041] Specifically, the serrated part 202 has a triangular cutting edge area F.

[0042] As a further improvement, the cutting unit 204 includes an assembly area 204a and a chip removal area 204b; wherein, the saw tooth 202 is disposed in the assembly area 204a, and the length of the chip removal area 204b is 0.5 to 1.2 times the length of the assembly area 204a. This arrangement allows for the rapid removal of debris generated during cutting while ensuring normal cutting, thereby improving obstacle removal efficiency.

[0043] As a further improvement, the first sawtooth 202a and the second sawtooth 202b have the same structure, both using flat teeth, and the overall shape is plate-like.

[0044] The remaining structure is the same as that in Example 1.

[0045] Example 3

[0046] This is a third embodiment of the present invention, which provides a chainsaw including the toothed chain described in embodiments 1 and 2.

[0047] The remaining structure is the same as that in Example 2.

[0048] Example 4

[0049] This is a fourth embodiment of the present invention, which provides a cutting device including the toothed chain described in embodiments 1 and 2.

[0050] The remaining structure is the same as that in Example 2.

[0051] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0052] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0053] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A chain and saw, characterized in that: The chain assembly (100) and the sawtooth assembly (200) nested on the outer circumferential surface of the chain assembly (100) are included. The chain assembly (100) includes a plurality of chain links (101), and the plurality of chain links (101) are arranged in a ring shape and can be wound on a sprocket (300). The sawtooth assembly (200) includes a steel wire (201), a sawtooth piece (202) for cutting objects, and a connecting piece (203) for connecting the steel wire (201) and the chain assembly (100). The steel wire (201) is arranged in a ring shape along the circumferential trajectory of the chain assembly (100) on the side of the chain link (101) away from the sprocket (300), and the steel wire (201) operates synchronously with the chain assembly (100). The sawtooth piece (202) and the connecting piece (203) are arranged along the installation trajectory of the steel wire (201). The sawtooth piece (202) includes a first sawtooth (202a) and a second sawtooth (202b). The two first sawteeth (202a) arranged on the two steel wires (201) are arranged in parallel, and the two second sawteeth (202b) arranged on the two steel wires (201) are arranged on the side away from the two first sawteeth (202a), and the first sawtooth (202a) and the second sawtooth (202b) are identical in structure and are in the form of a sheet plate. The sawtooth piece (202) divides the steel wire (201) into a plurality of cutting units (204) of the same length, and the two first sawteeth (202a) and the two second sawteeth (202b) in any cutting unit (204) are arranged in a fan shape. The cutting unit (204) includes an assembly area (204a) and a chip removal area (204b), wherein the sawtooth piece (202) is arranged in the assembly area (204a), and the length of the chip removal area (204b) is 0.5-1.2 times the length of the assembly area (204a). The sawtooth piece (202) is in the form of a triangle, and the sawtooth piece (202) has a movable end (T). The movable end (T) of the first sawtooth (202a) and the perpendicular of the steel wire (201) intersect at the axis of the connecting shaft (104). The movable end (T) of the second sawtooth (202b) and the perpendicular of the steel wire (201) intersect at the axis of the connecting shaft (104) at an angle β, and the angle β is greater than or equal to 35 degrees and less than or equal to 75 degrees.

2. The chain saw chain of claim 1 wherein: The sawtooth assembly (200) has two groups and is symmetrical in structure.

3. The chain saw chain of claim 2 wherein: The chain link (101) includes an engagement link plate (102), a connecting link plate (103), and a connecting shaft (104) for connecting the engagement link plate (102) and the connecting link plate (103).

4. An electric saw, characterized by: The sawtooth chain includes the sawtooth chain according to any one of claims 1-3.

5. A cutting device characterized by: The sawtooth chain includes the sawtooth chain according to any one of claims 1-3.

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