CN115534026B - Saw chain of electric chain saw - Google Patents
Saw chain of electric chain saw Download PDFInfo
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- CN115534026B CN115534026B CN202211241669.0A CN202211241669A CN115534026B CN 115534026 B CN115534026 B CN 115534026B CN 202211241669 A CN202211241669 A CN 202211241669A CN 115534026 B CN115534026 B CN 115534026B
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- boss
- saw
- chain
- transmission element
- cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B33/00—Sawing tools for saw mills, sawing machines, or sawing devices
- B27B33/14—Saw chains
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B33/00—Sawing tools for saw mills, sawing machines, or sawing devices
- B27B33/14—Saw chains
- B27B33/142—Cutter elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Sawing (AREA)
Abstract
The utility model provides an electric chain saw's saw chain, belongs to saw chain technical field, includes the saw chain body, the saw chain body include left cutting element, right cutting element, take boss transmission element, ordinary transmission element, connecting element, rivet, left cutting element and right cutting element be equipped with improvement structure one, connecting element be equipped with improvement structure two, take boss transmission element be equipped with improvement structure three. The invention improves the saw chain structure of the lithium electric saw, especially the handheld lithium electric saw, effectively improves the running stability of the saw chain, reduces vibration in the running process and ensures continuous and stable cutting efficiency.
Description
Technical Field
The invention belongs to the technical field of saw chains, and particularly relates to a saw chain of an electric chain saw.
Background
As shown in fig. 1, the saw chain structure which is common nowadays is a chain structure composed of components such as a left cutting element 1, a right cutting element 5, a transmission element with a boss 2, a common transmission element 4, a connecting element 6, a rivet 3 and the like. The left cutting element and the right cutting element are responsible for cutting wood fibers, and the transmission element with the boss and the common transmission element are responsible for being connected with a guide rail of the chain saw and transmitting power of chain advancing. However, most saw chains in the current market are designed based on the design thought of a chain saw or a large-sized electric saw, and when the saw chain is designed for a lithium electric saw, especially a handheld lithium electric saw, the characteristics of the product are not fully considered, and the problems that the matching of parts is unreasonable, the cutting efficiency is too fast, and vibration is large during use exist.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention discloses a saw chain of an electric chain saw, which has reasonable matching of parts, stable cutting efficiency and obviously reduced vibration amplitude during cutting, and overcomes the defects in the design of the existing lithium electric saw chain.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the utility model provides a saw chain of electric chain saw, includes the saw chain body, the saw chain body include left cutting element, right cutting element, take boss transmission element, ordinary transmission element, connecting element, rivet, left cutting element and right cutting element be equipped with improvement structure one, connecting element be equipped with improvement structure two, take boss transmission element be equipped with improvement structure three.
Preferably, the first improved structure comprises:
(1) Improvement of the limiting teeth on the front parts of the left and right cutting elements: the limiting teeth deflect towards one side of the transmission element with the boss according to a set deflection angle and a bending track, the axial movement space of the transmission element with the boss is limited by deflection, the distance h between the side surface of the cutter tooth edge part of the left cutting element and the cutter tooth part of the right cutting element, which is far away from one side of the limiting teeth, and one surface of the same side of the limiting teeth is kept in a certain range, and the certain range refers to that: the range can avoid the obvious reduction of the distance h caused by the later maintenance sharpening, wherein the obvious reduction means that the distance h can cause the reduction of the cutting efficiency;
(2) Improvement of the cutter tooth edge parts of the left and right cutting elements: the rear side of the side surface of the blade part, which is far away from the limiting tooth, is provided with an inclination angle sigma, and the inclination angle sigma is as follows: the probability of contact between the cutting part non-cutting working surface and the wood can be reduced;
(3) Improvement of the first front foot and the first rear foot for the left and right cutting elements: the bottoms of the first front foot and the first rear foot of the cutting element are respectively provided with a first angle beta and a first angle alpha relative to the horizontal plane, the first angle beta enables the bottom of the first front foot to incline upwards and forwards, the first angle alpha enables the bottom of the first rear foot to incline upwards and backwards, and the height of the bottom low point of the first front foot is lower than that of the bottom low point of the first rear foot; a first curvilinear segment is disposed between the first forefoot and the first rearfoot.
Preferably, the second improved structure comprises: the bottom end of the connecting element is also provided with a second curve section, two sides of the second curve section form a second front foot and a second rear foot, and the bottom ends of the second front foot and the second rear foot are also respectively provided with a second angle beta and a second angle alpha; the outer side surface of the connecting element is provided with an identification symbol for marking the advancing direction of the chain, and four corners of the connecting element are respectively provided with an arc-shaped inner concave surface.
Preferably, the third improvement comprises:
(1) A first cambered surface is arranged between the right lower surface and the right side surface of the transmission element with the boss;
(2) The right upper surface of the transmission element with the boss is set to be a bevel structure inclined to the rear side;
(3) A first curved surface formed by tangential connection of a plurality of curved sections is arranged between the upper plane of the transmission element with the boss and the boss at the top, and the first curved surface is a convex surface;
(4) A second curved surface formed by tangent connection of a plurality of sections of curves is arranged between the top boss and the upper left surface, and the second curved surface is a concave surface;
(5) A notch is arranged at the bottom end of the transmission element with the boss and between the left lower surface and the right lower surface.
Preferably, the top of the top boss is lower than the top of the limiting teeth, and a height difference H is formed, and the height difference H is satisfied with: the circle center O of the cutting element and the transmission element with the boss is used as a rotation axis, and the top boss is lower than the top end of the limiting tooth when rotating at any angle in the working range of the saw chain.
The saw chain of the electric chain saw has the beneficial effects that: the invention improves the saw chain structure of the lithium electric saw, especially the handheld lithium electric saw, effectively improves the running stability of the saw chain, reduces vibration in the running process and ensures continuous and stable cutting efficiency.
Drawings
FIG. 1 is a block diagram of a saw chain of the prior art;
FIG. 2 is a side view of a saw chain of the electric chain saw of the present invention;
FIG. 3, three views (top left view, bottom left view, front right view) of a cutting element of a saw chain of an electric chain saw of the present invention;
FIG. 4, a side view of a limiting tooth of a cutting element of a saw chain of an electric chain saw of the present invention (2 right side views are illustrative of the limiting tooth deflecting toward a boss drive element side according to a set deflection angle and bending trajectory);
FIG. 5 is a schematic view of a toothed chain of an electric chain saw with a boss drive element of the present invention;
FIG. 6 is a schematic diagram of the cutting element of the saw chain of the electric chain saw of the present invention mated with a boss driven element;
1. a left cutting element; 2. a transmission element with a boss; 2-1, lower left; 2-2, right lower side; 2-3, a first cambered surface; 2-4, upper right; 2-5, upper plane; 2-6, top boss; 2-7, upper left; 2-8, right side; 2-9, notch; 3. a rivet; 4. a common transmission element; 5. a right cutting element; 5-1, having a first curve segment; 5-2, a first rear foot; 5-3, a first forefoot; 5-4, spacing teeth; 6. a connecting element; 6-1, a second curve segment; 6-2, a second rear foot; 6-3, a second forefoot; 6-4, marking a symbol; 6-5, an arc concave surface.
Detailed Description
The following description is of the preferred embodiments of the invention and is not intended to limit the scope of the invention, but is intended to cover any modifications, equivalents, and improvements within the spirit and principles of the invention.
Example 1:
the saw chain of the electric chain saw comprises a saw chain body, wherein the saw chain body comprises a left cutting element 1, a right cutting element 5, a transmission element 2 with a boss, a common transmission element 4, a connecting element 6 and a rivet 3, the left cutting element 1 and the right cutting element 5 are provided with a first improvement structure, the connecting element 6 is provided with a second improvement structure, and the transmission element 2 with the boss is provided with a third improvement structure.
In this embodiment, the cutting efficiency of the saw chain can be kept stable by the improvement, and the vibration during cutting can be reduced. The saw chain body is of a structure in the prior art, and the problems are not solved by the scheme in the prior art. The invention relates to a system improvement aiming at parts of a saw chain body, which effectively improves the saw chain quality of a lithium electric saw through improving a first structure, a second structure and a third structure.
Example 2:
on the basis of embodiment 1, this embodiment discloses:
as shown in fig. 2, 3, 4 and 6, the first modified structure comprises:
(1) Improvement of the limiting teeth 5-4 on the front parts of the left and right cutting elements: the limiting teeth 5-4 deflect towards one side of the transmission element 2 with the boss according to a set deflection angle and a set bending track, and the axial movement space of the transmission element 2 with the boss is limited through deflection, so that the running stability of the transmission element 2 with the boss is improved; and the distance h between the side surface of the cutter tooth edge part of the left cutting element and the cutter tooth part of the right cutting element, which is far away from one side of the limiting tooth, and the side surface of the same side of the limiting tooth 5-4 is kept in a certain range, wherein the certain range refers to that: the range can avoid the obvious reduction of the distance h caused by the later maintenance sharpening, wherein the obvious reduction refers to the reduction of the cutting efficiency caused by the distance h; in the prior art, the deflection is avoided, the distance h is obviously reduced after the blade part is polished, and the limit teeth influence the cutting efficiency of the blade part, so that the cutting efficiency of the saw chain is rapidly reduced;
(2) Improvement of the cutter tooth edge parts of the left and right cutting elements: the rear side of the side surface of the blade part, which is far away from the limiting tooth, is provided with an inclination angle sigma, and the inclination angle sigma is as follows: the probability of contact between the cutting part non-cutting working surface and the wood can be reduced; meanwhile, the shock absorption and the prolonging of the service life of the cutter teeth are facilitated, and the protection of the strengthening layer on the surface of the blade part is facilitated;
(3) Improvement of the first front foot and the first rear foot for the left and right cutting elements: the bottoms of the first front foot 5-3 and the first rear foot 5-2 of the cutting element are respectively provided with a first angle beta and a first angle alpha relative to the horizontal plane, the first angle beta enables the bottom of the first front foot to incline upwards and forwards, the first angle alpha enables the bottom of the first rear foot to incline upwards and backwards, and the height of the bottom end low point of the first front foot 5-3 is lower than that of the bottom end low point of the first rear foot 5-2; a first curved section 5-1 (i.e., a curved section connecting the first forefoot and the first rearfoot) is provided between the first forefoot and the first rearfoot. The first front foot and the first rear foot are contacted with the guide rail of the lithium electric saw, and when the first front foot and the first rear foot are contacted, the first angle beta and the first angle alpha can play a good buffering role, so that the impact between the front foot and the guide rail is reduced, and meanwhile, the first front foot and the first rear foot sole end are provided with a height difference, so that the first front foot is contacted with the guide rail first, the blade part of the cutter tooth is promoted to be upwarp, and the blade tip of the blade part is enabled to cut into wood deeper. On the whole, after the blade parts are separated from the chain wheel of the lithium electric saw and enter the guide rail, the action strokes of the blade parts which are tilted upwards in sequence continuously fluctuate like sine waves, so that the cutting efficiency of the chain is improved on the whole. The first curve section 5-1 can ensure that the saw chain is more stable when contacting with the front part of the guide rail and the arc surface of the guide rail, and simultaneously can reduce the weight of parts, thereby being beneficial to the weight reduction of the saw chain.
In this embodiment, the cutting element is a prior art, and the improvements made in this embodiment are based on the existing cutting element, and nothing is said to solve the problem with the existing solutions.
Example 3:
on the basis of embodiment 1, this embodiment discloses:
as shown in fig. 2, the second improved structure includes: the bottom end of the connecting element 6 is also provided with a second curve section 6-1, two sides of the second curve section 6-1 form a second front foot 6-3 and a second rear foot 6-2, the bottom ends of the second front foot and the second rear foot are also respectively provided with a second angle beta and a second angle alpha (not labeled in the figure), the design principle is the same as that of the embodiment 2, and the description is omitted; the outer side surface of the connecting element 6 is provided with an identification sign 6-4 for marking the advancing direction of the chain, and four corners of the connecting element are respectively provided with an arc-shaped inner concave surface 6-5 so as to prevent the connecting element from colliding with the limiting teeth during large-angle transmission of the chain and reduce the weight.
In this embodiment, the connecting element is a prior art, and the improvement made by this embodiment is based on the existing connecting element, and nothing is mentioned about the solution of the prior art.
Example 4:
on the basis of embodiment 1, this embodiment discloses:
as shown in fig. 2, 5 and 6, the improved structure III comprises:
(1) A first cambered surface 2-3 is arranged between the right lower surface 2-2 and the right side surface 2-8 of the transmission element 2 with the boss, and plays a role in positioning when being meshed with a chain wheel on a guide rail, so that the meshing stability is ensured;
(2) The right upper face 2-4 of the transmission element 2 with the boss is set to be an inclined face structure inclined to the rear side; the interference of the transmission element can be prevented when the transmission element rotates at a large angle, and the weight is reduced;
(3) A first curved surface formed by tangential connection of a plurality of curve sections (R3, R4 and R5) is arranged between the upper plane 2-5 of the transmission element 2 with the boss and the top boss 2-6, and the first curved surface is a convex surface;
(4) A second curved surface formed by tangent connection of a plurality of sections of curves (R1 and R2) is arranged between the top boss 2-6 and the upper left surface 2-7, and the second curved surface is a concave surface;
(5) A notch 2-9 is arranged at the bottom end of the belt boss transmission element 2 and between the left lower surface 2-1 and the right lower surface 2-2, and the notch 2-9 can ensure good lubrication effect when the belt boss transmission element runs and prevent the chain wheel from interfering with the belt boss transmission element.
In this embodiment, the transmission element 2 with boss is the prior art, and the improvement made by this embodiment is based on the prior transmission element 2 with boss, and the solution of this embodiment is not described.
Example 5:
on the basis of example 4, this example discloses:
as shown in fig. 6, the top ends of the top bosses 2-7 are lower than the top ends of the limiting teeth 5-4, and form a height difference H, and the height difference H is as follows: the circle center O of the cutting element and the transmission element 2 with the boss is used as a rotation axis, and the top boss is lower than the top end of the limiting tooth when rotating at any angle in the working range of the saw chain, so that stable sawing efficiency in the initial stage of the saw chain use can be ensured.
Claims (4)
1. The utility model provides a saw chain of electric chain saw, includes the saw chain body, the saw chain body include left cutting element, right cutting element, take boss transmission element, ordinary transmission element, connecting element, rivet, characterized by: the left cutting element and the right cutting element are provided with a first improved structure, the connecting element is provided with a second improved structure, and the transmission element with the boss is provided with a third improved structure;
the first improved structure comprises:
(1) Improvement of the limiting teeth on the front parts of the left and right cutting elements: the limiting teeth deflect towards one side of the transmission element with the boss according to a set deflection angle and a bending track, the axial movement space of the transmission element with the boss is limited by deflection, the distance h between the side surface of the cutter tooth edge part of the left cutting element and the cutter tooth part of the right cutting element, which is far away from one side of the limiting teeth, and one surface of the same side of the limiting teeth is kept within a certain range, and the certain range means that: the range can avoid the obvious reduction of the distance h caused by the later maintenance sharpening, wherein the obvious reduction means that the distance h can cause the reduction of the cutting efficiency;
(2) Improvement of the cutter tooth edge parts of the left and right cutting elements: the rear side of the side surface of the blade part, which is far away from the limiting tooth, is provided with an inclination angle sigma, and the inclination angle sigma is as follows: the probability of contact between the cutting part non-cutting working surface and the wood can be reduced;
(3) Improvement of the first front foot and the first rear foot for the left and right cutting elements: the bottoms of the first front foot and the first rear foot of the cutting element are respectively provided with a first angle beta and a first angle alpha relative to the horizontal plane, the first angle beta enables the bottom of the first front foot to incline upwards and forwards, the first angle alpha enables the bottom of the first rear foot to incline upwards and backwards, and the height of the bottom low point of the first front foot is lower than that of the bottom low point of the first rear foot; a first curvilinear segment is disposed between the first forefoot and the first rearfoot.
2. A saw chain of an electric chain saw as in claim 1 wherein: the second improved structure comprises: the bottom end of the connecting element is also provided with a second curve section, two sides of the second curve section form a second front foot and a second rear foot, and the bottom ends of the second front foot and the second rear foot are also respectively provided with a second angle beta and a second angle alpha; the outer side surface of the connecting element is provided with an identification symbol for marking the advancing direction of the chain, and four corners of the connecting element are respectively provided with an arc-shaped inner concave surface.
3. A saw chain of an electric chain saw as in claim 1 wherein: the improved structure III comprises:
(1) A first cambered surface is arranged between the right lower surface and the right side surface of the transmission element with the boss;
(2) The right upper surface of the transmission element with the boss is set to be a bevel structure inclined to the rear side;
(3) A first curved surface formed by tangential connection of a plurality of curved sections is arranged between the upper plane of the transmission element with the boss and the boss at the top, and the first curved surface is a convex surface;
(4) A second curved surface formed by tangent connection of a plurality of sections of curves is arranged between the top boss and the upper left surface, and the second curved surface is a concave surface;
(5) A notch is arranged at the bottom end of the transmission element with the boss and between the left lower surface and the right lower surface.
4. A saw chain of an electric chain saw as in claim 3 wherein: the top of top boss be less than spacing tooth top highly to form difference in height H, difference in height H satisfies: the circle center O of the cutting element and the transmission element with the boss is used as a rotation axis, and the top boss is lower than the top end of the limiting tooth when rotating at any angle in the working range of the saw chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211241669.0A CN115534026B (en) | 2022-10-11 | 2022-10-11 | Saw chain of electric chain saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211241669.0A CN115534026B (en) | 2022-10-11 | 2022-10-11 | Saw chain of electric chain saw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115534026A CN115534026A (en) | 2022-12-30 |
| CN115534026B true CN115534026B (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211241669.0A Active CN115534026B (en) | 2022-10-11 | 2022-10-11 | Saw chain of electric chain saw |
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| CN (1) | CN115534026B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10356636A1 (en) * | 2003-12-01 | 2005-06-30 | Andreas Stihl Ag & Co. Kg | Saw chain for a motorized chainsaw |
| US7637192B2 (en) * | 2006-10-26 | 2009-12-29 | Blount, Inc. | Saw chain drive link with tail |
| US8689666B2 (en) * | 2009-11-05 | 2014-04-08 | Blount, Inc. | Drive link with improved lubrication feature |
| CN112277085A (en) * | 2020-11-05 | 2021-01-29 | 芜湖精锋园林机械科技有限公司 | Novel saw chain |
| CN214394567U (en) * | 2020-11-05 | 2021-10-15 | 芜湖精锋园林机械科技有限公司 | Novel saw chain |
| CN114274269A (en) * | 2022-01-10 | 2022-04-05 | 宁波鲁仕锯链科技有限公司 | Saw chain suitable for lithium electric saw and lithium electric saw |
| CN217414281U (en) * | 2022-05-17 | 2022-09-13 | 东莞市兴合模具制造有限公司 | Novel saw chain for electric saw |
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2022
- 2022-10-11 CN CN202211241669.0A patent/CN115534026B/en active Active
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| CN115534026A (en) | 2022-12-30 |
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