CN211517752U - Electric chain saw chain - Google Patents
Electric chain saw chain Download PDFInfo
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- CN211517752U CN211517752U CN202020060554.1U CN202020060554U CN211517752U CN 211517752 U CN211517752 U CN 211517752U CN 202020060554 U CN202020060554 U CN 202020060554U CN 211517752 U CN211517752 U CN 211517752U
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- cutting
- chain
- cutting blade
- chain saw
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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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Abstract
The utility model belongs to the technical field of electric chain saw, concretely relates to electric chain saw chain, the not good not enough of effect when having been applied to light-duty electric chain saw to existing chain, the utility model discloses a following technical scheme: an electric chainsaw chain comprising: a plurality of drive straps having drive lugs; a plurality of connecting pieces; the cutting blade comprises a plurality of cutting blades, wherein the outer sides of the cutting blades are provided with vertical hole parts, cutting parts and depth limiting parts; the transmission sheet, the connecting sheet and the cutting sheet are hinged through pin shafts; wherein an average distance between pin shafts adjacent to each other determines an average pitch, the drive lug and depth limiter determine a maximum height, the cutting blade determines a maximum thickness, and the average pitchThe product of the distance, the maximum height and the maximum thickness is less than 488.95mm3. The utility model discloses an electronic chain saw chain's beneficial effect is: can obviously improve the cutting performance and meet the use requirement.
Description
Technical Field
The utility model belongs to the technical field of electric chain saw, concretely relates to electric chain saw chain is particularly useful for one-hand operation's light-duty electric chain saw.
Background
Existing portable power chain saws, which are typically used to perform trimming or forest work, such as felling, pruning and cutting of trees, generally include a power source, a cutting system and a handle. One of the core components of the cutting system is a chain, which typically includes a drive plate, a connecting plate and a cutting plate, which are hinged to each other, the cutting plate having a cutting portion and a depth limiting portion.
The normal stable operation of an electric chain saw depends on a combination of factors: motor power, battery working protection current, chain size, etc. Among these, the size of the chain is one of the key factors. Large chainsaws designed for high drive chainsaws cannot be transferred directly to smaller drive power chainsaws. Thus, the chain needs to be redesigned to be suitable for a light weight electric chain saw for one-handed operation.
Disclosure of Invention
The utility model discloses not good not enough of effect when being applied to light-duty electric chain saw to existing chain provides an electric chain saw chain, can be applied to the light-duty electric chain saw of the less single-hand operation of drive power with better cutting performance.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an electric chainsaw chain comprising:
a plurality of drive straps having drive lugs;
a plurality of connecting pieces;
the cutting blade comprises a plurality of cutting blades, wherein the outer sides of the cutting blades are provided with vertical hole parts, cutting parts and depth limiting parts;
the transmission sheet, the connecting sheet and the cutting sheet are hinged through pin shafts;
wherein the average distance between adjacent pins determines an average pitch, the drive lobe and depth limiter determine a maximum height, the cutting blade determines a maximum thickness, and the product of the average pitch, maximum height and maximum thickness is less than 488.95mm3。
In order to obtain better cutting performance under low driving force, the size of the chain is reduced only to be insufficient, and when other parameters are not changed, the comprehensive effect of three parameters of the average pitch, the maximum height and the maximum thickness of the chain determines the cutting performance to a large extent. And, considering the convenience of one-handed operation and the small cutting amount of the light chain saw, the maximum power of the AC chain saw does not exceed 600W, and the AC chain saw is straightThe maximum power of the chain saw does not exceed 450W, the maximum working protection current of the battery is 35, and when the outline dimension (namely the product of the average pitch, the maximum height and the maximum thickness) of the chain reaches or exceeds 488.95mm3When the chain saw is used, the load power far exceeds the maximum power of the motor, and the situation is shown that a user slightly presses the chain saw to stop running immediately, so the use effect is poor. If increase motor power will lead to whole machine size and weight all can increase, the user will not the one-hand operation, moreover, because the cutting volume is big, under the operating mode that does not have lubricating oil dry cutting, the chain is because of the friction generates heat, and the temperature rise is too high, reduces the hardness and the life-span of chain. The values relating to the overall dimensions of the chain in the prior art for a long time were 450mm3The following tests show that when the overall dimension of the chain is less than 488.95mm3In time, the cutting requirements can be basically met, thereby breaking through the inertial thinking.
As an improvement, the product of the average pitch, the maximum height and the maximum thickness is more than 450mm3Less than 488.95mm3. When the external dimension of the chain is less than or equal to 450mm3When the chain is used, scraps generated by cutting are thin, the chain is difficult to remove scraps, the working efficiency is low, the heat dissipation effect is poor, and under the working condition that lubricating oil is not cut in a dry mode, the chain cannot be effectively discharged due to heat generated by friction, the temperature rise of the chain is too high, the hardness of the chain is reduced, and the service life of the chain is prolonged. Therefore, the external dimension is set to be 450-488.95 mm3Within the range, the load, cutting efficiency, chip removal and heat dissipation effects of the chain reach the optimal balance, and the chain can work normally under the drive of a motor without lubricating oil and low power.
As a refinement, the average pitch is 6.35mm, the maximum height is between 11.3mm and 13.9mm, and the maximum thickness is between 4.7mm and 5.7 mm.
As a refinement, the maximum height is 13.75mm and the maximum thickness is 5.4 mm.
As an improvement, the thickness of the transmission piece is 1.1mm, the thickness of the connecting piece is 0.9mm, and the thickness of the vertical hole part of the cutting piece is 0.9 mm; the included angle formed between the left inclined plane and the right inclined plane of the transmission piece is 80 degrees.
As an improvement, the vertical distance from the shaft hole of the cutting piece to the upper end is 8mm, and the height between the circle center of the shaft hole of the transmission piece and the lower end is 5.8 mm.
As an improvement, the thickness between the outer side surface of the vertical hole part and the outer end of the depth limiting part of the cutting blade is 1.25 mm; the maximum dimension of the cutting blade in the thickness direction is 3.25 mm.
As an improvement, the depth limiting part of the cutting piece is 0.5mm higher than the cutting part; the included angle formed by one surface of the depth limiting part facing the cutting part and one surface of the cutting part opposite to the depth limiting part is 8.7 degrees; the depth restricting portion has an angle of 5.3 ° formed between an upper surface and a lower surface in a thickness direction thereof.
As an improvement, the aperture of the shaft holes in the transmission plate, the connecting plate and the cutting plate is 1.8mm, the pin shaft is provided with a middle large-diameter section, a left small-diameter section, a right small-diameter section and two end circular table sections, the diameter of the middle large-diameter section of the pin shaft is 2.9mm, the length of the middle large-diameter section of the pin shaft is 1.13mm, the diameter of the left small-diameter section of the pin shaft is 1.7mm, and the length of the pin shaft before being assembled into a chain is 5.15 mm.
As an improvement, the surfaces of the transmission piece, the connecting piece and the cutting piece are flat, and no oil groove or oil storage hole is formed except for the shaft hole. The mainstream brand chains in the market all have oil grooves or oil storage holes. The surface is changed into flat, no oil groove or oil storage hole is machined, the flat surface reduces cutting resistance and is more beneficial to chip removal, the oil-free cutting tool is suitable for oil-free cutting, and lubricating oil does not need to be added during working. Through practical tests, the cutting speed can meet the industrial standard when reaching 25 m/s.
As an improvement, the cutting blade is divided into a first cutting blade and a second cutting blade which are symmetrical, the first cutting blade and the second cutting blade are distributed in a staggered mode, and two transmission blades are arranged between the first cutting blade and the second cutting blade at intervals; connecting pieces are arranged on two sides of the transmission piece in the thickness direction; the cutting portion is located in front of the depth limiting portion in the chain rotation direction. Two transmission pieces are arranged between the first cutting piece and the second cutting piece at intervals, and the two transmission pieces are adjacent to each other and directly connected with the first cutting piece and the second cutting piece.
The utility model discloses an electronic chain saw chain's beneficial effect is: when average sectionThe product of the distance, the maximum height and the maximum thickness is less than 488.95mm3The cutting performance can be obviously improved, and the use requirement can be met. Further, the chain can be cut without oil through optimization of three parameters of average pitch, maximum height and maximum thickness and other parameters.
Drawings
Fig. 1 is a front view (partially cut away) showing a rotation direction of an electric chain saw according to a first embodiment of the present invention.
Fig. 2 is a front view (partially cut) in a thickness direction of an electric chain saw according to a first embodiment of the present invention.
Fig. 3 is a front view of a rotation direction of a drive plate of an electric chain saw according to a first embodiment of the present invention.
Fig. 4 is a front view of a rotation direction of the first connecting piece 2-1 of the electric chain saw according to the first embodiment of the present invention.
Fig. 5 is a front view of a second connecting piece of the electric chain saw according to the first embodiment of the present invention.
Fig. 6 is a front view of a first driving plate of an electric chain saw according to a first embodiment of the present invention.
Fig. 7 is a front view of a first driving plate of an electric chain saw according to a first embodiment of the present invention.
Fig. 8 is a front view of a rotation direction of a second drive strap of an electric chain saw according to a first embodiment of the present invention.
Fig. 9 is a front view of a second drive strap of an electric chain saw according to a first embodiment of the present invention in a thickness direction.
Fig. 10 is a front view of the electric chain saw chain according to the first embodiment of the present invention in the thickness direction before the pin shaft is assembled.
The solid arrows in the figure indicate the direction of chain movement.
In the figure, 1, a transmission sheet; 11. a drive boss;
2. connecting sheets; 2-1, a first connecting piece 2-1; 2-2, a second connecting sheet;
3. cutting the slices; 3-1, a first cutting sheet; 3-2, second cutting slice; 31. a vertical opening part 32, a cutting part; 33. a depth limiting section;
4. a pin shaft; 41. a middle large diameter section; 42. a left and a right small diameter section; 43. a circular table section;
A. average pitch;
B. a maximum height;
C. the maximum thickness.
Detailed Description
The technical solutions of the embodiments of the present invention will be explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and are not all embodiments. Other embodiments obtained by persons skilled in the art without any inventive work based on the embodiments in the embodiment belong to the protection scope of the invention.
Referring to fig. 1 to 10, an electric chain saw of the present invention includes:
a plurality of drive straps having drive lugs;
a plurality of connecting pieces;
the cutting blade comprises a plurality of cutting blades, wherein the outer sides of the cutting blades are provided with vertical hole parts, cutting parts and depth limiting parts;
the transmission sheet, the connecting sheet and the cutting sheet are hinged through pin shafts;
wherein the average distance between adjacent pins determines an average pitch, the drive lobe and depth limiter determine a maximum height, the cutting blade determines a maximum thickness, and the product of the average pitch, maximum height and maximum thickness is less than 488.95mm3. The transmission convex part is used for being in transmission connection with the chain wheel.
In order to obtain better cutting performance under low driving force, the size of the chain is reduced only to be insufficient, and when other parameters are not changed, the comprehensive effect of three parameters of the average pitch, the maximum height and the maximum thickness of the chain determines the cutting performance to a large extent. Considering the convenience of one-handed operation and the small cutting amount of the light chain saw, the maximum power of the AC chain saw does not exceed 600W, and the DC chainThe maximum power of the saw is not more than 450W, the maximum working protection current of the battery is 35, and when the external dimension of the chain reaches or exceeds 488.95mm3When the chain saw is used, the load power far exceeds the maximum power of the motor, and the situation is shown that a user slightly presses the chain saw to stop running immediately, so the use effect is poor. If increase motor power will lead to whole machine size and weight all can increase, the user will not the one-hand operation, moreover, because the cutting volume is big, under the operating mode that does not have lubricating oil dry cutting, the chain is because of the friction generates heat, and the temperature rise is too high, reduces the hardness and the life-span of chain. When the external dimension of the chain is less than 488.95mm3And the cutting requirements can be basically met through testing.
Example one
Referring to fig. 1 to 10, a first embodiment of the present invention provides an electric chain saw chain, including:
a plurality of transmission plates 1, wherein the transmission plates 1 are provided with transmission convex parts 11;
a plurality of connection pieces 2;
a plurality of cutting blades 3, the outer side of the cutting blade 3 is provided with a vertical perforated part 31, a cutting part 32 and a depth limiting part 33;
the transmission sheet 1, the connecting sheet 2 and the cutting sheet 3 are hinged through the pin shafts 4;
wherein the average distance between the pins 4 adjacent to each other determines an average pitch A, the drive protrusions 11 and the depth limiter 33 determine a maximum height B, the cutting blade 3 determines a maximum thickness C, and the product of the average pitch A, the maximum height B and the maximum thickness C is less than 488.95mm3. The pitch between the two shaft holes of the transmission piece 1 is A1, the pitch between the two shaft holes of the connecting piece 2 is A2, the pitch between the two shaft holes of the cutting piece 3 is A3, and the average pitch A is determined by the sizes and the numbers of A1, A2 and A3. In this example, a1 and A3 are equal.
As a refinement, the product of the average pitch A, the maximum height B and the maximum thickness C is more than 450mm3Less than 488.95mm3. When the external dimension of the chain is less than or equal to 450mm3When the chain is used, the scraps generated by cutting are thin, the chain has difficult scrap removal, the working efficiency is low, the heat dissipation effect is poor, and the chain is not usedUnder the operating mode that lubricating oil was cut futilely, lead to the chain because of the heat that the friction produced can't effectively discharge, lead to the chain temperature rise too high, reduce the hardness and the life-span of chain. Therefore, the outer dimension of the chain is designed to be more than 450mm3So that it can be applied to oil-free cutting.
As a refinement, the average pitch A is 6.35mm, the maximum height B is between 11.3mm and 13.9mm, and the maximum thickness C is between 4.7mm and 5.7 mm. 6.35mm is a standard pitch of the chain.
As a refinement, the maximum height is 13.75mm and the maximum thickness is 5.4 mm.
As an improvement, the thickness of the transmission piece 1 is 1.1mm, the thickness of the connecting piece 2 is 0.9mm, and the thickness of the vertical hole part 31 of the cutting piece 3 is 0.9 mm; an included angle alpha formed between the left inclined plane and the right inclined plane of the transmission piece 1 is 80 degrees; the height b1 between the centre of a circle of the shaft hole of the driving strap 1 and the lower end is 5.8 mm.
As a modification, the thickness t1 between the outer side surface of the vertical hole part 31 and the outer end of the depth limiting part 33 of the cutting blade 3 is 1.25 mm; the maximum dimension t2 in the thickness direction of the cutting blade 3 is 3.25 mm.
As a modification, the vertical distance b2 from the shaft hole of the cutting blade 3 to the upper end is 8mm, and the height h of the depth limiting part 33 of the cutting blade 3 higher than the cutting part 32 is 0.5 mm; the included angle beta formed by one surface of the depth limiting part 33 facing the cutting part 32 and one surface of the cutting part 32 opposite to the depth limiting part 33 is 8.7 degrees; the depth regulating portion 33 has an angle γ of 5.3 ° formed between the upper surface and the lower surface in the thickness direction.
As an improvement, the aperture of the shaft holes on the transmission plate 1, the connecting plate 2 and the cutting plate 3 is 1.8mm, the pin shaft 4 is provided with a middle large-diameter section 41, a left small-diameter section 42, a right small-diameter section 42 and two end circular truncated cone sections 43, the diameter of the middle large-diameter section 41 of the pin shaft 4 is 2.9mm, the length of the middle large-diameter section is 1.13mm, the diameter of the left small-diameter section 42 and the diameter of the right small-diameter section 42 are 1.7mm, and the length of the pin shaft 4 before being assembled into a chain is 5..
As an improvement, the driving plate 1, the connecting plate 2 and the cutting plate 3 are flat in surface, and no oil groove or oil storage hole is formed except for the shaft hole. The mainstream brand chains in the market all have oil grooves or oil storage holes. The surface is changed into flat, no oil groove or oil storage hole is machined, the flat surface reduces cutting resistance and is more beneficial to chip removal, the oil-free cutting tool is suitable for oil-free cutting, and lubricating oil does not need to be added during working. Through practical tests, the cutting speed can meet the industrial standard when reaching 25 m/s.
As an improvement, the cutting blade 3 is divided into a first cutting blade 3-1 and a second cutting blade 3-2 which are symmetrical, the first cutting blade 3-1 and the second cutting blade 3-2 are distributed in a staggered manner, and two transmission blades 1 are arranged between the first cutting blade 3-1 and the second cutting blade 3-2; connecting pieces 2 are arranged on two sides of the transmission piece 1 in the thickness direction; the cutting portion 32 is located forward of the depth restricting portion 33 in the chain rotating direction. The connecting piece 2 is also divided into a first connecting piece 2-1 and a second connecting piece 2-2 which are arranged symmetrically on both sides of the driving piece 1.
The embodiment of the utility model provides an electronic chain saw chain's beneficial effect is: when the product of the average pitch A, the maximum height B and the maximum thickness C is 450mm3To 488.95mm3The chain saw cannot be overloaded and stopped easily due to too large size, difficult chip removal, low working efficiency and poor heat dissipation due to too small size, and the external dimension is set to be 450mm3To 488.95mm3In the range, the load, cutting efficiency, chip removal and heat dissipation effects of the chain are optimally balanced, so that the chain can normally work under the drive of a motor without lubricating oil and low power; and the cutting performance is further improved by optimizing other size parameters.
While the invention has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that the invention is not limited thereto but is intended to cover various modifications and changes, including but not limited to the details shown in the drawings and described in the foregoing detailed description. Any modification which does not depart from the functional and structural principles of the invention is intended to be included within the scope of the following claims.
Claims (10)
1. Electric chain saw chain, its characterized in that: the electric chain saw chain includes:
a plurality of transmission plates (1), wherein the transmission plates (1) are provided with transmission convex parts (11);
a plurality of connection pieces (2);
a plurality of cutting blades (3), the cutting blades (3) having a vertical opening portion (31), a cutting portion (32), and a depth limiting portion (33);
the transmission piece (1), the connecting piece (2) and the cutting piece (3) are hinged through the pin shafts (4);
wherein the average distance between the pins (4) adjacent to each other determines the average pitch (A) of the chain, the drive plate (1) and the cutting plate (3) determine the maximum height (B) of the chain, the cutting plate (3) determines the maximum thickness (C) of the chain, and the product of the average pitch (A), the maximum height (B) and the maximum thickness (C) is less than 488.95mm3。
2. The electric chain saw chain as recited in claim 1, wherein: the product of the average pitch (A), the maximum height (B) and the maximum thickness (C) is greater than 450mm3Less than 488.95mm3。
3. The electric chain saw chain as recited in claim 1, wherein: the average pitch (A) is 6.35mm, the maximum height (B) is between 11.3mm and 13.9mm, and the maximum thickness (C) is between 4.7mm and 5.7 mm.
4. The electric chain saw chain as recited in claim 3, wherein: the maximum height (B) is 13.75mm and the maximum thickness (C) is 5.4 mm.
5. The electric chain saw chain as recited in claim 4, wherein: the thickness of the transmission piece (1) is 1.1mm, the thickness of the connecting piece (2) is 0.9mm, and the thickness of the vertical hole opening part (31) of the cutting piece (3) is 0.9 mm; the included angle formed between the left inclined plane and the right inclined plane of the transmission piece (1) is 80 degrees.
6. The electric chain saw chain as recited in claim 4, wherein: the height between the circle center of the shaft hole of the transmission piece (1) and the lower end is 5.8 mm; the vertical distance from the shaft hole of the cutting blade (3) to the upper end is 8 mm.
7. The electric chain saw chain as recited in claim 4, wherein: the thickness between the outer side surface of the vertical hole part (31) of the cutting blade (3) and the outer end of the depth limiting part (33) is 1.25 mm; the maximum size of the cutting blade (3) in the thickness direction is 3.25 mm; the depth limiting part (33) of the cutting blade (3) is 0.5mm higher than the cutting part (32); the included angle formed by one surface of the depth limiting part (33) facing the cutting part (32) and one surface of the cutting part (32) opposite to the depth limiting part (33) is 8.7 degrees; the depth regulating portion (33) has an angle of 5.3 DEG between the upper surface and the lower surface in the thickness direction.
8. The electric chain saw chain as recited in claim 4, wherein: the aperture of the shaft hole on transmission piece (1), connection piece (2) and cutting piece (3) is 1.8mm, round pin axle (4) have middle big footpath section (41), control path section (42) and both ends round platform section (43), the diameter of the middle big footpath section (41) of round pin axle (4) is 2.9mm, and length is 1.13mm, the diameter of controlling path section (42) is 1.7mm, round pin axle (4) length before the assembly is the chain is 5.15 mm.
9. The electric chain saw chain as recited in claim 1, wherein: the transmission piece (1), the connecting piece (2) and the cutting piece (3) are smooth in surface.
10. The electric chain saw chain as recited in claim 1, wherein: the cutting blade (3) is divided into a first cutting blade (3-1) and a second cutting blade (3-2) which are symmetrical, the first cutting blade (3-1) and the second cutting blade (3-2) are distributed in a staggered mode, and two transmission blades (1) are arranged between the first cutting blade (3-1) and the second cutting blade (3-2) at intervals; connecting pieces (2) are arranged on two sides of the transmission piece (1) in the thickness direction; the cutting section (32) is located in front of the depth limiting section (33) in the chain rotation direction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020060554.1U CN211517752U (en) | 2020-01-13 | 2020-01-13 | Electric chain saw chain |
| DE202020106594.7U DE202020106594U1 (en) | 2020-01-13 | 2020-11-17 | Electric chainsaw chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020060554.1U CN211517752U (en) | 2020-01-13 | 2020-01-13 | Electric chain saw chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211517752U true CN211517752U (en) | 2020-09-18 |
Family
ID=72468891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020060554.1U Active CN211517752U (en) | 2020-01-13 | 2020-01-13 | Electric chain saw chain |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN211517752U (en) |
| DE (1) | DE202020106594U1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022095555A1 (en) * | 2020-11-05 | 2022-05-12 | 芜湖精锋园林机械科技有限公司 | High-efficiency saw chain |
| WO2022095554A1 (en) * | 2020-11-05 | 2022-05-12 | 芜湖精锋园林机械科技有限公司 | Novel saw chain |
| WO2023065373A1 (en) * | 2021-10-20 | 2023-04-27 | 苏州甘泰精密机械有限公司 | Low-power-consumption cutting chain and chain saw having same |
-
2020
- 2020-01-13 CN CN202020060554.1U patent/CN211517752U/en active Active
- 2020-11-17 DE DE202020106594.7U patent/DE202020106594U1/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022095555A1 (en) * | 2020-11-05 | 2022-05-12 | 芜湖精锋园林机械科技有限公司 | High-efficiency saw chain |
| WO2022095554A1 (en) * | 2020-11-05 | 2022-05-12 | 芜湖精锋园林机械科技有限公司 | Novel saw chain |
| WO2023065373A1 (en) * | 2021-10-20 | 2023-04-27 | 苏州甘泰精密机械有限公司 | Low-power-consumption cutting chain and chain saw having same |
Also Published As
| Publication number | Publication date |
|---|---|
| DE202020106594U1 (en) | 2020-12-04 |
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