CN214644369U - Saw chain with semicircular arc blade - Google Patents
Saw chain with semicircular arc blade Download PDFInfo
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- CN214644369U CN214644369U CN202120376495.3U CN202120376495U CN214644369U CN 214644369 U CN214644369 U CN 214644369U CN 202120376495 U CN202120376495 U CN 202120376495U CN 214644369 U CN214644369 U CN 214644369U
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Abstract
The utility model provides a saw chain with a semicircular arc blade, wherein a saw blade is divided into a cutting part, a bottom part and a limiting part; the limiting part is arranged in front of the upper side of the bottom, and the cutting part is arranged behind the upper side of the bottom; the section of the cutting part is in a hook shape, and two pin holes are formed in the bottom of the saw blade; the inner side of the hook face at the front side of the cutting part is provided with an arc blade with radian consistent with the hook radian, and the tail end of the hook top is provided with a bottom straight blade.
Description
Technical Field
The utility model relates to a handheld motor saw chain, a semicircle sword saw chain.
Background
A flexible gang tool for sawing wood. It is used as a sawing mechanism of portable chain saws (chain saws and electric saws), fixed material making chain saws and felling combination machines. The chain is formed by riveting a chain shaft after a transmission chain sheet, a cutting tooth chain sheet and a connecting sheet are arranged and combined according to a certain rule. The driving chain piece is a chain piece with driving teeth and is positioned in the middle of the saw chain, and the chain wheel drives the saw chain through the driving teeth. The connecting pieces are arranged at two sides of the saw chain and connect the driving chain pieces together through the chain shafts. The cutting tooth chain sheet is mainly responsible for cutting wood. If the cutting teeth are integrated with the driving chain sheet, the cutting teeth are positioned in the middle of the saw chain and play the role of the driving chain sheet. When the cutting teeth are made in one piece with the connecting piece, they are located on both sides of the saw chain and function as connecting pieces at the same time. Furthermore, the cutting tooth portions of the cutting tooth chain plates may have different configurations and different parameters.
In order to reduce the rebound damage of the saw chain when sawing small-diameter trees and branches, the company of Oregon, Federal Germany Stell and the like in the United states makes a safe bent-tooth saw chain. The chain plates of the saw chains are provided with a small bulge, some bulges are arranged on the side edge of the material limiter of the cutting tooth chain plate, some bulges are arranged on the top of the driving chain plate, and some bulges are arranged on the top of the connecting plate. The small bulges can prevent branch thin strips from being embedded into the connecting part of each chain sheet in the running process of the saw chain, thereby preventing possible rebound. In order to better solve the mechanization problem of filing saw chains, the american oregon company developed a power filing saw chain in 1966. The cutting tooth top cutting edge of the saw chain is inclined, and during filing, the arc-shaped grinder arranged on one side of the chain wheel can be close to the saw chain, and simultaneously filing the cutting tooth and the material limiter by the operation power of the saw chain. The saw chain is not only quick in filing, but also accurate and consistent in filing of the cutting teeth and the material limiter, and is a modern saw chain with stable sawing and high production rate. Straight saw chains are still preferred for use in power chain saws that traverse logs.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a need revise the saw bit according to the sword type of saw chain when repairing to current saw chain sawtooth, each saw bit all need aim at the saw bit sword limit and revise the process loaded down with trivial details and designed one kind only need the round file to carry out one-way file to the sword limit and move the semicircle sword saw bit that can revise.
A semi-circular edge saw chain comprising: saw blade, driving plate, connecting plate; the saw blade is divided into a cutting part, a bottom part and a limiting part; the limiting part is arranged in front of the upper side of the bottom, and the cutting part is arranged behind the upper side of the bottom;
the section of the cutting part is in a hook shape, and two pin holes are formed in the bottom of the saw blade;
the inner side of the hook face at the front side of the cutting part is provided with an arc blade with radian consistent with the hook radian, and the tail end of the hook top is provided with a bottom straight blade.
The saw blade is divided into a left saw blade and a right saw blade according to the actual installation part, and the left saw blade and the right saw blade are in mirror symmetry; the pin hole of the left saw blade is aligned with the pin hole of the transmission sheet and is covered with the upper right connecting sheet to form a left saw blade chain link; the right saw blade chain link is formed by installing a right saw blade on the right side of the transmission sheet and covering the connecting sheet on the left side; the link chain links are provided with connecting sheets on both sides of the driving sheet.
The saw chain is composed of a left saw blade chain link, a link chain link, a right saw blade chain link, a link chain link and a left saw blade chain link … … which are continuously circulated to form a circle.
Most of the existing hook-shaped saw blades are formed by sintering two blades together, the top blade and the vertical blade are not integrated, and most of the junction part is conical; the utility model discloses a cutting portion is made by a monoblock metal punching press to be the hook-type back at the punching press, accord with the utility model discloses a standard is opened the sword, and the top surface of cutting portion removes also for convex sword with the juncture of vertical plane, only needs when repairing to flat-pressing to the cutting surface with circular file, can revise in the same direction as the pulling of opening the sword direction.
A semi-arc edge saw chain comprises a saw blade, a cutting part, a bottom part and a limiting part; the limiting part is arranged in front of the upper side of the bottom, and the cutting part is arranged behind the upper side of the bottom;
the section of the cutting part is in a hook shape, and two pin holes are formed in the bottom of the saw blade;
the inner side of the hook face at the front side of the cutting part is provided with an arc blade with radian consistent with the hook radian, and the tail end of the hook top is provided with a bottom straight blade.
Most of the existing hook-shaped saw blades are formed by sintering two blades together, the top blade and the vertical blade are not integrated, and most of the junction part is conical; the utility model discloses a cutting portion is made by a monoblock metal punching press to be the hook-type back at the punching press, accord with the utility model discloses a standard is opened the sword, and the top surface of cutting portion removes also for convex sword with the juncture of vertical plane, only needs when repairing to flat-pressing to the cutting surface with circular file, can revise in the same direction as the pulling of opening the sword direction.
Preferably, the angle of the circular arc edge is between 166 ° and 196 °.
Preferably, the tangent line of the top edge of the circular arc blade is in the same plane with the straight blade, and the included angle formed by the straight blade and the top surface of the cutting part is 22-32 degrees.
The circular-arc edge continues to move backward during the correction process with the continuous consumption of the saw blade, and the straight edge portion is corrected as a part of the circular-arc edge after the correction because the edge is opened in advance.
Preferably, the thickness of the saw blade is as follows: 1.27-1.47 mm; the thickness of the arc edge is more than 0.3 mm.
Preferably, the spacing between the cutting part and the limiting part is in the shape of a circular arc;
the front side of the limiting part is arc-shaped.
Preferably, the outermost end of the curved side of the cutting portion forms an angle of 10 ° with the perpendicular plane of the bottom portion.
The beneficial effects of the utility model reside in that: the blade edge of the passivated saw blade can be corrected conveniently, and the correction mode is simple, convenient and quick.
Drawings
FIG. 1 is a side view of a saw blade of the present invention;
FIG. 2 is a front end view of the saw blade of the present invention;
in the figure: 1. The cutting part 2, the limiting part 3, the bottom part 4, the pin hole, a, an included angle formed by the outermost end of the bending side of the cutting part and the vertical plane of the bottom part, and b, an included angle formed by the straight edge and the top surface of the cutting part.
Detailed Description
The technical solution of the present invention is further specifically described below by way of specific embodiments and with reference to the accompanying drawings.
Example 1
As shown in fig. 1 and 2, the saw chain with semi-circular blades comprises: the saw blade comprises a saw blade, a transmission sheet and a connecting sheet, wherein the saw blade is divided into a cutting part 1, a bottom part 3 and a limiting part 2; the limiting part 2 is arranged in front of the upper side of the bottom part 3, and the cutting part 1 is arranged behind the upper side of the bottom part 3;
the section of the cutting part 1 is hook-shaped, and two pin holes 4 are arranged on the bottom 3 of the saw blade;
the inner side of the hook on the front side of the cutting part 1 is provided with an arc blade with radian consistent with the hook radian, and the tail end of the hook top is provided with a bottom 3 straight blade.
The saw blade is divided into a left saw blade and a right saw blade according to the actual installation part, and the left saw blade and the right saw blade are in mirror symmetry; the pin hole of the left saw blade is aligned with the pin hole of the transmission sheet and is covered with the upper right connecting sheet to form a left saw blade chain link; the right saw blade chain link is formed by installing a right saw blade on the right side of the transmission sheet and covering the connecting sheet on the left side; the link chain links are provided with connecting sheets on both sides of the driving sheet.
The saw chain is composed of a left saw blade chain link, a link chain link, a right saw blade chain link, a link chain link and a left saw blade chain link … … which are continuously circulated to form a circle.
Most of the existing hook-shaped saw blades are formed by sintering two blades together, the top blade and the vertical blade are not integrated, and most of the junction part is conical; the utility model discloses a cutting portion 1 is made by a monoblock metal punching press to be the hook-shaped back at the punching press, accord with the utility model discloses a standard is opened the sword, and the top surface of cutting portion 1 and the juncture of vertical plane remove also for convex sword, only need when repairing with circular file concora crush to the cutting surface, can revise in the same direction as the pulling of sword direction.
Preferably, the angle of the circular arc edge is 170 °.
Preferably, the tangent line at the top edge of the circular arc blade is in the same plane with the straight blade, and the included angle b formed by the straight blade and the top surface of the cutting part 1 is 22 °.
The circular-arc edge continues to move backward during the correction process with the continuous consumption of the saw blade, and the straight edge portion is corrected as a part of the circular-arc edge after the correction because the edge is opened in advance.
Preferably, the thickness of the saw blade is as follows: 1.27 mm; the thickness of the arc edge is 0.35 mm.
Preferably, the spacing between the cutting part 1 and the limiting part 2 is in the shape of circular arc;
the front side of the restriction part 2 is arc-shaped.
Preferably, the outermost end of the bending side of the cutting part 1 forms an included angle a of 10 degrees with the vertical plane of the bottom part 3.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A semi-circular edge saw chain comprising: the saw blade is characterized by comprising a cutting part, a bottom part and a limiting part; the limiting part is arranged in front of the upper side of the bottom, and the cutting part is arranged behind the upper side of the bottom;
the section of the cutting part is in a hook shape, and two pin holes are formed in the bottom of the saw blade;
the inner side of the hook face at the front side of the cutting part is provided with an arc blade with radian consistent with the hook radian, and the tail end of the hook top is provided with a bottom straight blade.
2. A saw chain with semicircular blades as defined in claim 1 wherein said angle of the circular blades is between 166 ° and 196 °.
3. The saw chain with semi-circular arc blades as claimed in claim 2, wherein the tangent line of the top edge of the circular arc blade is in the same plane with the straight blade, and the included angle formed by the straight blade and the top surface of the cutting part is 22-32 °.
4. A saw chain with semicircular blades according to claim 2 or 3, wherein the saw blade has a thickness of: 1.27-1.47 mm; the thickness of the arc edge is more than 0.3 mm.
5. The saw chain with semicircular arc blades as claimed in claim 4, wherein the spacing between the cutting part and the limiting part is in the shape of a circular arc;
the front side of the limiting part is arc-shaped.
6. A saw chain with semicircular arc blades as claimed in claim 4, wherein the angle formed by the outermost end of the curved side of the cutting part and the vertical plane of the bottom part is 10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120376495.3U CN214644369U (en) | 2021-02-19 | 2021-02-19 | Saw chain with semicircular arc blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120376495.3U CN214644369U (en) | 2021-02-19 | 2021-02-19 | Saw chain with semicircular arc blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214644369U true CN214644369U (en) | 2021-11-09 |
Family
ID=78447974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120376495.3U Active CN214644369U (en) | 2021-02-19 | 2021-02-19 | Saw chain with semicircular arc blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214644369U (en) |
-
2021
- 2021-02-19 CN CN202120376495.3U patent/CN214644369U/en active Active
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