Sawtooth chain, electric saw and cutting device

Abstract

The invention discloses a sawtooth chain, an electric saw and a cutting device, and relates to the technical field of lumbering and obstacle clearance, and the sawtooth chain comprises a chain assembly and a sawtooth assembly nested on the peripheral surface of the chain assembly; the chain assembly comprises a plurality of groups of chain links, and the plurality of groups of chain links are annularly arranged and can be hung on the chain wheel in a rolling manner; the sawtooth assembly comprises a steel wire strip, a sawtooth piece used for cutting an object and a connecting piece used for connecting the steel wire strip and the chain assembly. The steel wire strip is divided into a plurality of cutting units with the same length through the sawtooth pieces, the sawtooth pieces adopt flat teeth, and each cutting unit comprises an assembling area and a chip removal area, so that the distance between every two adjacent sawtooth pieces is increased, chips generated in the cutting process can be rapidly removed, and the problem that due to the existing sawtooth hook shape design, the cutting efficiency is high is solved. And the saw chain is easily hooked by bamboo fibers, so that the saw chain is stuck or separated.

Description

Technical Field

[0001] The invention relates to the technical field of logging and obstacle removal, and in particular to a sawtooth chain, an electric saw and a cutting device. Background Art

[0002] Bamboo and wood pose multiple threats to the safety of power grids. For example, they can grow too fast or in bad weather and touch power lines, causing short circuits and tripping, resulting in power outages.

[0003] When processing bamboo, traditional chain saws and electric saws often encounter challenges in the sawing process because the bamboo fiber rich in bamboo fiber has excellent tensile strength, elasticity and toughness. The saw teeth are designed in a hook shape and are too protruding, which can easily be hooked by the bamboo fiber, causing the saw chain to get stuck or fly off the chain, which not only reduces work efficiency, but also increases the safety risk of operators. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the problem that the above-mentioned traditional oil saws and electric saws are easily hooked by bamboo fibers during the process of sawing bamboo and wood due to the hook shape design of the saw teeth, resulting in the saw chain being stuck or falling off, the present invention is proposed.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a sawtooth chain, comprising a chain assembly, and a sawtooth assembly nested on the outer peripheral surface of the chain assembly; the chain assembly comprises multiple groups of chain links, and the multiple groups of chain links are arranged in a ring shape and can be wound on a sprocket; the sawtooth assembly comprises a steel wire, a sawtooth part for cutting objects, and a connecting part for connecting the steel wire and the chain assembly; wherein the steel wire is arranged in a ring shape along the circumferential trajectory of the chain assembly on the side of the chain link away from the sprocket, and the steel wire runs synchronously with the operation of the chain assembly; the sawtooth part and the connecting part are arranged along the installation trajectory of the steel wire.

[0007] As a preferred solution of the sawtooth chain of the present invention, there are two groups of sawtooth components with symmetrical structures.

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

[0009] As 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 in the shape of a plate.

[0010] As a preferred embodiment of the sawtooth chain of the present invention, the sawtooth member divides the steel wire into a plurality of cutting units of the same 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; the sawtooth member is arranged 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 comprises a meshing segment plate, a connecting segment plate, and a connecting shaft for connecting the meshing segment plate and the connecting segment plate.

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

[0014] In order to solve the above technical problems, the present invention provides the following technical solutions: an electric saw, comprising the above-mentioned sawtooth chain.

[0015] In order to solve the above technical problems, the present invention provides the following technical solutions: a cutting device, comprising the sawtooth chain.

[0016] Beneficial effects of the present invention: The present invention divides the steel wire into a number of cutting units of the same length through a sawtooth member, the sawtooth member uses flat teeth, and each cutting unit includes an assembly area and a chip removal area, thereby increasing the spacing between adjacent sawtooth members, so that the debris generated during the cutting process can be quickly removed, solving the problem of the existing sawtooth hook shape design that is easily hooked by bamboo fibers, causing the saw chain to get stuck or fall off the chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0018] Figure 1 It is a schematic diagram of the partial structure of the sawtooth chain described in the present invention.

[0019] Figure 2 A schematic structural diagram of a chain assembly and a sawtooth assembly in the sawtooth chain of the present invention.

[0020] Figure 3 It is a side view of the chain assembly and the sawtooth assembly in the sawtooth chain of the present invention.

[0021] Figure 4 It is a schematic diagram of the overall structure of the sawtooth chain of the present invention.

[0022] Figure 5 It is a front view of the sawtooth chain of the present invention.

[0023] In the figure: 100, chain assembly; 101, chain link; 102, meshing node plate; 103, connecting node plate; 104, connecting shaft; 200, sawtooth assembly; 201, steel wire; 202, sawtooth member; 202a, first sawtooth; 202b, second sawtooth; T, movable end; 203, connecting member; 204, cutting unit; 204a, assembly area; 204b, chip removal area; 300, sprocket. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present 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 term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0027] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0028] The invention relates to a cutting device, which is mainly used for cutting bamboo, tree branches and other wood, removing wood plants that are too tall around power grids, and maintaining the safety of power grids. The invention relates to an electric saw, which comprises a sawtooth chain. When in use, the outer teeth of the sawtooth chain contact and collide with the surface of an object, and the sawtooth chain runs at a high speed under the drive of a motor to cut the object.

[0029] Example 1

[0030] Reference Figure 1 to Figure 5 , which is the first embodiment of the present invention, provides a sawtooth chain, including a chain assembly 100, and a sawtooth assembly 200 nested on the outer circumferential surface of the chain assembly 100.

[0031] Specifically, the chain assembly 100 includes a plurality of chain links 101, which are arranged in a ring and can be wound on a sprocket 300; the sprocket 300 is connected to the output end of the motor through a connecting shaft 104. The 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. When in use, the motor is started to drive the sprocket 300 and the chain wound on the sprocket 300 to run, and the saw teeth located on the outer side of the chain cut the object under the high-speed operation of the chain.

[0032] Furthermore, the sawtooth assembly 200 includes a steel wire 201, a sawtooth member 202 and a connecting member 203; wherein the steel wire 201 is nested in the outer side of the chain assembly 100 composed of multiple groups of chain links 101 arranged in a ring shape, and can operate synchronously with the operation of the chain assembly 100; the sawtooth member 202 is used to cut objects, such as pillars, trees and other wood; the connecting member 203 is used to connect the steel wire 201 and the chain assembly 100, and the connecting member 203 is arranged between the chain assembly 100 and the steel wire 201, and one end of the connecting member 203 is fixedly connected to the chain link 101 plate on the adjacent chain assembly 100, such as welding, and the other end of the connecting member 203 is provided with an arc groove that can engage the steel wire 201.

[0033] At the same time, in order to prevent the steel wire 201 from lagging behind after the motor starts or stops, that is, the steel wire 201 cannot run synchronously with the chain assembly 100, causing the connecting piece 203 to collide with the serrated piece 202 on the steel wire 201, or even cause the steel wire 201 to derail, usually, a flange is provided on the steel wire 201 to clamp the two ends of the arc groove corresponding to the connecting piece 203, or after the steel wire 201 is embedded in the arc groove, the parts at both ends of the arc groove that contact the steel wire 201 are welded and fixed by a welding gun.

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

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

[0036] Example 2

[0037] Reference Figure 1 to Figure 5 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that the sawtooth assembly 200 has two groups and the structure is symmetrical. This arrangement enables the device to form at least two similar cutting surfaces when cutting wood plants, thereby improving the obstacle removal efficiency.

[0038] Specifically, the sawtooth member 202 includes a first sawtooth 202a and a second sawtooth 202b; wherein the two first sawtooths 202a respectively provided on the two steel wire strips 201 are arranged in parallel, and the two second sawtooths 202b respectively provided on the two steel wire strips 201 are arranged on the opposite side of the two first sawtooths 202a.

[0039] As a further improvement, the sawtooth member 202 divides the steel wire strip 201 into a plurality of cutting units 204 of the same length, and the two first saw teeth 202a and the two second saw teeth 202b in any cutting unit 204 are fan-shaped. With such an arrangement, the device can form a triangular cutting area on the tree when cutting the tree, and by sawing the triangular incision on the tree trunk, it can help control the direction of the tree falling, and avoid accidental injury when the tree falls.

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

[0041] Specifically, the sawtooth member 202 has a blade surface area F that is triangular in shape.

[0042] As a further improvement, the cutting unit 204 includes an assembly area 204a and a chip removal area 204b; wherein the sawtooth member 202 is arranged 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. Such an arrangement allows the chips generated during cutting to be quickly removed while ensuring normal cutting, thereby improving the obstacle removal efficiency.

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

[0044] The remaining structures are the same as those of Example 1.

[0045] Example 3

[0046] The third embodiment of the present invention provides an electric saw, comprising the sawtooth chain described in Embodiments 1 and 2.

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

[0048] Example 4

[0049] The fourth embodiment of the present invention provides a cutting device, comprising the sawtooth chain described in Embodiments 1 and 2.

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

[0051] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0052] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0053] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A sawtooth chain, characterized in that: It comprises a chain assembly (100) and a sawtooth assembly (200) nested on the outer peripheral surface of the chain assembly (100); The chain assembly (100) comprises a plurality of groups of chain links (101), wherein the plurality of groups of chain links (101) are arranged in a ring shape and can be wound around a sprocket (300); The sawtooth assembly (200) comprises a steel wire (201), a sawtooth member (202) for cutting an object, and a connecting member (203) for connecting the steel wire (201) and the chain assembly (100); The steel wire strip (201) is arranged in a ring shape along the circumferential trajectory of the chain assembly (100) on a side of the chain link (101) away from the sprocket (300), and the steel wire strip (201) operates synchronously with the operation of the chain assembly (100); The sawtooth member (202) and the connecting member (203) are arranged along the installation track of the steel wire strip (201).

2. The sawtooth chain according to claim 1, characterized in that: The sawtooth components (200) have two groups and are symmetrical in structure.

3. The sawtooth chain according to claim 1 or 2, characterized in that: The sawtooth member (202) comprises a first sawtooth (202a) and a second sawtooth (202b); The two first saw teeth (202a) respectively arranged on the two steel wire strips (201) are arranged in parallel, and the two second saw teeth (202b) respectively arranged on the two steel wire strips (201) are arranged on the opposite sides of the two first saw teeth (202a).

4. The sawtooth chain according to claim 3, characterized in that: The first saw teeth (202a) and the second saw teeth (202b) have the same structure and are both in the shape of a sheet.

5. The sawtooth chain according to claim 3, characterized in that: The sawtooth member (202) divides the steel wire strip (201) into a plurality of cutting units (204) of the same length, and the two first saw teeth (202a) and the two second saw teeth (202b) in any one of the cutting units (204) are fan-shaped.

6. The sawtooth chain according to claim 5, characterized in that: The cutting unit (204) comprises an assembly area (204a) and a chip removal area (204b); wherein the sawtooth member (202) is arranged 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).

7. The sawtooth chain according to claim 3, characterized in that: The chain link (101) includes a meshing joint plate (102), a connecting joint plate (103), and a connecting shaft (104) for connecting the meshing joint plate (102) and the connecting joint plate (103).

8. The sawtooth chain according to claim 7, characterized in that: The sawtooth member (202) is triangular in shape, and has a movable end (T); Wherein, the movable end (T) of the first sawtooth (202a) and the vertical line of the steel wire (201) intersect perpendicularly at the axis of the connecting shaft (104); The movable end (T) of the second saw tooth (202b) and a perpendicular line to the steel wire (201) intersect the axis of the connecting shaft (104) at an angle β, and the angle β is ≥35 degrees and ≤75 degrees.

9. An electric saw, characterized in that: It comprises the sawtooth chain as described in any one of claims 1 to 8.

10. A cutting device, characterized in that: It comprises the sawtooth chain as described in any one of claims 1 to 8.

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