CN216938739U - Bimetal chain saw tool bit and chain saw containing same - Google Patents
Bimetal chain saw tool bit and chain saw containing same Download PDFInfo
- Publication number
- CN216938739U CN216938739U CN202220699528.2U CN202220699528U CN216938739U CN 216938739 U CN216938739 U CN 216938739U CN 202220699528 U CN202220699528 U CN 202220699528U CN 216938739 U CN216938739 U CN 216938739U
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- saw
- chain saw
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- head
- chain
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- 238000005520 cutting process Methods 0.000 claims abstract description 84
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 229910000997 High-speed steel Inorganic materials 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 claims description 25
- 238000005452 bending Methods 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 230000033001 locomotion Effects 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- 230000001154 acute effect Effects 0.000 claims description 6
- 238000010894 electron beam technology Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000000758 substrate Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 13
- 238000004080 punching Methods 0.000 description 5
- 238000000227 grinding Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910001315 Tool steel Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model discloses a bimetal chain saw bit and a chain saw containing the same, belonging to the chain saw field, wherein the chain saw is mainly designed by two materials on the bit, the bit is divided into a substrate and a wear-resistant saw bit which are made of different materials and fixedly connected with each other, the wear-resistant saw bit for performing key saw cutting is made of a material with stronger hardness, such as powdered steel and high-speed steel, and the wear-resistant saw bit is connected with the substrate made of the original material by a process, so that higher cost is not required to be increased, and the object to be cut with long service life, wear resistance, low cost and wider range is achieved, thereby greatly improving labor efficiency, reducing maintenance times and being suitable for popularization.
Description
Technical Field
The utility model relates to the field of chain saws, in particular to a bimetal chain saw bit and a chain saw comprising the same.
Background
A common double-metal chain saw mainly comprises a power output mechanism, a chain and a support plate, wherein the power output mechanism can be divided into a chain saw, an electric saw, a pneumatic saw and a hydraulic saw. As the name suggests, the oil chain saw is powered by a gasoline or diesel engine; the electric chain saw is powered by electricity; the pneumatic chain saw is powered by an air compressor; the hydraulic chain saw is powered by a hydraulic pump station. The chain comprises a cutter head, a connecting piece, a transmission piece and a rivet, the chain is installed on the supporting plate and connected with the power output mechanism, and when the power output is acted, the chain rotates at a high speed along the supporting plate to saw a workpiece. The most important part of the chain is the cutter head in the chain, and the traditional cutter head is generally manufactured by using single common carbon tool steel as a material through the working procedures of punching, bending extrusion, heat treatment, grinding and the like, and finally is installed on the chain for sawing.
However, the above-described cutter head has the following drawbacks:
(1) the cutting tool bit of the traditional chain saw is made of a single material (common carbon tool steel), the ultimate hardness is not very high, and if the cutting tool bit is made of other good materials, the overall cost is very high;
(2) conventional chain saws are only suitable for cutting softer wood;
(3) when the traditional chain saw is used for field operation, the saw cannot be cut when hard wood or impurities such as gravel and steel nails are mixed in the wood, and the use is extremely troublesome;
(4) the traditional chain saw is short in service life, the tool bit is easy to wear, and the traditional chain saw can be continuously used after being manually polished after being used for a period of time.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art; the first purpose of the utility model is to provide a cutter head of a bimetal chain saw, which is prepared from two different materials, so that the cutter head has longer service life and is not easy to wear on the basis of controlling the cost of the cutter head;
the second purpose provides a bimetal chain saw, and it adopts above-mentioned tool bit to accomplish the preparation, has better use experience, need not frequent maintenance, and can be applicable to more multiple type saw cut object.
In order to solve the above problems, the present invention adopts the following technical solutions.
A cutter head of a bimetal chain saw can be close to an object to saw the object, when the bimetal chain saw is used, a plurality of cutter heads are arranged on a chain saw body, and the chain saw body controls annular motion to complete the saw cutting of the object; the tool bit comprises a base body and a wear-resistant saw cutting head, and the base body is arranged on the chain saw body; the edge of one side, close to the object, of the base body is provided with a cutting groove and a cutting head mounting seat, and the cutting groove and the cutting head mounting seat are sequentially arranged along the sawing motion direction of the tool bit; the wear-resistant saw cutting head is fixedly connected in the cutting head mounting seat, and a cutting edge part is arranged on one side, close to the cutting groove, of the wear-resistant saw cutting head rest; the hardness of the wear-resistant saw cutting head is higher than that of the base body, and the hardness of the wear-resistant saw cutting head reaches more than HRC 67.
Preferably, the material of the wear-resistant sawing head is high-speed steel or powder steel.
Preferably, the wear-resistant sawing head is fixedly connected with the base body through welding; further, the welding mode is lead welding, laser welding, electron beam welding or resistance welding.
Preferably, the base body and the wear-resistant saw cutting head are both provided with bending angles with equal angles, and the bending angles bend towards one side of the transmission piece. Preferably, the bending angle A is in the range of 30-60 degrees.
Preferably, the blade portion is obliquely arranged, and the inclined plane where the blade portion is located and the tool bit moving direction are arranged in an acute angle B mode, so that the blade portion can rapidly break the object. The range of the acute angle B is preferably 30-60 degrees.
A bi-metal chain saw, the chain saw body comprising a power take off mechanism and a tool bit mounting mechanism; the cutter head mounting mechanism comprises a supporting plate and a chain, and the chain is mounted on the periphery of the supporting plate and connected with the power output mechanism; a plurality of cutter heads are arranged on the chain; when the power output mechanism acts, the driving chain moves along the supporting plate, so that the cutter head on the chain can be close to an object to saw the object.
Preferably, the chain comprises driving straps, connecting straps and rivets, and every two adjacent driving straps are connected by the rivets at two ends of the connecting straps; the cutter head is positioned between every two transmission sheets and is also connected with the transmission sheets through rivets at two ends; the more than one cutter head in quantity is alternately distributed on two sides of the transmission piece, and the connection pieces are alternately adapted along with the cutter heads which are alternately distributed.
Compared with the prior art, the utility model has the advantages that:
according to the scheme, the bimetal chain saw bit is arranged, the cutting edge of the chain saw bit is made of steel with higher hardness, the hardness reaches more than HRC67, the cutting wear resistance is 3-10 times that of common bit, the service life is greatly prolonged, the wear-resistant saw bit is larger in value but smaller in use amount, and the actually improved cost can be basically ignored.
Secondly, the bimetal chain saw of this scheme has used hardness and sharpness to promote greatly behind the new tool bit, has alleviateed operating personnel's physical expenditure greatly, simultaneously also very big promotion cutting efficiency, need not frequent maintenance moreover, can be applicable to more polytype saw cut the object.
Thirdly, the wear-resistant cutter head can be made of high-speed steel, is cut into a required shape by laser cutting or other similar processing methods, is heated to a certain degree, and is bent and extruded to a required angle and shape; or powder steel, firstly making upper and lower dies with corresponding shapes, and then producing the required shape of the wear-resistant cutter head by the machining process for manufacturing the powder steel. After the wear-resistant tool bit is machined by the two or other similar modes, the wear-resistant tool bit is fixed on the base body by various welding modes such as lead welding, laser welding, electron beam welding, resistance welding and the like. And finally, grinding the cutting edge part of the wear-resistant cutter head, and finally processing the cutter head into the required cutter head of the chain saw.
Drawings
FIG. 1 is a schematic front view of a tool tip of the present invention;
FIG. 2 is a perspective view of the bi-metal chain saw of the present invention;
FIG. 3 is a schematic view of a mounting configuration for a tool tip of the present invention;
FIG. 4 is a side view of the cutting head of the present invention;
fig. 5 is a back side view of a tool tip of the present invention.
The reference numbers in the figures illustrate:
1, a chain saw body and 2 support plates;
3, a chain; 31 cutter head, 31-1 cutting groove, 31-2 cutting head mounting seat, 311 base body, 312 wear-resistant saw cutting head, 312a cutting edge portion, 32 driving sheet, 33 connecting sheet and 34 rivet.
Detailed Description
Example 1:
referring to fig. 1 to 5, a cutter head of a bimetal chain saw can be close to an object to saw the object, when the bimetal chain saw is used, a plurality of cutter heads are installed on a chain saw body 1, and the chain saw body 1 controls circular motion to complete the sawing of the object; the tool bit 31 comprises a base body 311 and a wear-resistant saw cutting head 312, wherein the base body 311 is arranged on the chain saw body 1; the edge of one side, close to the object, of the substrate 311 is provided with a cutting groove 31-1 and a cutting head mounting seat 31-2, and the cutting groove 31-1 and the cutting head mounting seat 31-2 are sequentially arranged along the sawing motion direction of the tool bit 31; the wear-resistant saw cutting head 312 is fixedly connected in the cutting head mounting seat 31-2, and a cutting edge part 312a is arranged on one side, close to the cutting groove 31-1, of the wear-resistant saw cutting head 312; the wear resistant saw cutting head 312 has a higher hardness than the base 311.
Preferably, the material of the wear-resistant saw head 312 is high-speed steel or powder steel.
Preferably, the wear-resistant saw head 312 and the base 311 are fixedly connected by welding; furthermore, the welding mode is lead welding, laser welding, electron beam welding or resistance welding.
Preferably, the base 311 and the wear-resistant sawing head 312 are provided with bending angles a with equal angles, and the bending angles a are bent towards one side of the transmission piece 32. Preferably, the bending angle A is in the range of 30 to 60 degrees.
Preferably, the cutting edge portion 312a is disposed obliquely, and the inclined surface where the cutting edge portion 312a is disposed and the movement direction of the cutter head 31 form an acute angle B, so that the cutting edge portion 312a can rapidly break the object. The range of the acute angle B is preferably 30-60 degrees.
Example 2:
a bimetal chain saw is characterized in that a chain saw body 1 comprises a power output mechanism and a tool bit mounting mechanism; the cutter head mounting mechanism comprises a support plate 2 and a chain 3, wherein the chain 3 is mounted on the periphery of the support plate 2 and connected with the power output mechanism; a plurality of cutter heads 31 are mounted on the chain 3; when the power take-off mechanism is activated, the drive chain 3 moves along the support plate 2 so that the cutting head 31 on the chain 3 can saw an object close to it. The power output mechanism can be mainly divided into four types: oil chain saws powered by gasoline or diesel engines; an electric chain saw powered by electricity; a pneumatic chain saw powered by an air compressor; the hydraulic chain saw is powered by a hydraulic pump station. The support plate may be a high quality and high strength integrally forged guide plate.
Preferably, the chain 3 comprises driving straps 32, connecting pieces 33 and rivets 34, and every two adjacent driving straps 32 are connected by the rivets 34 at two ends of the connecting pieces 33; the cutter head 31 is positioned between every two transmission sheets 32 and is also connected with the transmission sheets 32 through rivets 34 at two ends; more than one cutting head 31 is alternately arranged on both sides of the driving strap 32, and the connecting straps 33 are adapted to alternate with the alternately arranged cutting heads 31.
Example 3:
a method of manufacturing a cutter head of a bi-metal chain saw, comprising the steps of:
firstly, manufacturing a base body 311, punching a pair of holes on the base body to facilitate subsequent connection, manufacturing a cutting groove 31-1 and a cutting head mounting seat 31-2 through punching, bending and extruding the base body 311 at one side of the cutting groove 31-1, which is close to the cutting head mounting seat 31-2, to set a bending angle A, and finally performing heat treatment and shaping;
secondly, manufacturing a wear-resistant saw cutting head 312, cutting one side of the wear-resistant saw cutting head into a shape matched with the cutting head mounting seat 31-2 by adopting high-speed steel, cutting the other side of the wear-resistant saw cutting head into a curved surface in smooth transition with the inner wall of the cutting groove 31-1, and then heating, bending and extruding the curved surface into a bending angle consistent with the bending angle in the first step;
thirdly, welding the wear-resistant saw cutting head 312 to the cutting head mounting seat 31-2 of the base body 311, and grinding the cutting edge part 312a of the wear-resistant saw cutting head 312 close to one side of the cutting groove 31-1, thereby completing the manufacture of the cutter head 31.
Example 4:
a method of manufacturing a cutter head of a bi-metal chain saw comprising the steps of:
firstly, manufacturing a base body 311, punching a pair of holes on the base body to facilitate subsequent connection, manufacturing a cutting groove 31-1 and a cutting head mounting seat 31-2 through punching, bending and extruding the base body 311 at one side of the cutting groove 31-1, which is close to the cutting head mounting seat 31-2, to set a bending angle A, and finally performing heat treatment and shaping;
secondly, manufacturing the wear-resistant saw cutting head 312, namely manufacturing an upper die and a lower die, molding the powder steel through the upper die and the lower die until one side of the powder steel is matched with the cutting head mounting seat 31-2, and the other side of the powder steel is smoothly transited to a curved surface on the inner wall of the cutting groove 31-1, and simultaneously forming a shape of a bending angle consistent with the bending angle in the first step;
thirdly, welding the wear-resistant saw cutting head 312 to the cutting head mounting seat 31-2 of the base body 311, and grinding the cutting edge part 312a of the wear-resistant saw cutting head 312 close to one side of the cutting groove 31-1, thereby completing the manufacture of the cutter head 31.
Example 5:
a manufacturing method of the bimetal chain saw adopts the cutter head 31 to install and form the bimetal chain saw, and the specific installation mode is the same as the prior art.
Claims (9)
1. A cutter head of a bimetal chain saw is characterized in that: the tool bit can be close to an object to saw the object, when the tool bit is used, a plurality of tool bits are installed on the chain saw body (1), and the chain saw body (1) controls annular movement to complete the sawing of the object;
the tool bit (31) comprises a base body (311) and a wear-resistant saw cutting head (312), wherein the base body (311) is installed on the chain saw body (1);
the edge of one side, close to the object, of the base body (311) is provided with a cutting groove (31-1) and a cutting head mounting seat (31-2), and the cutting groove (31-1) and the cutting head mounting seat (31-2) are sequentially arranged along the sawing movement direction of the tool bit (31);
the wear-resistant sawing head (312) is fixedly connected in the head mounting seat (31-2), and a cutting edge part (312 a) is arranged at the position, close to the cutting groove (31-1), of the wear-resistant sawing head (312);
the hardness of the wear-resistant sawing head (312) is higher than that of the base body (311), and the hardness of the wear-resistant sawing head (312) reaches more than HRC 67.
2. The cutter head of a bi-metal chain saw as recited in claim 1, wherein: the material of the wear-resistant saw cutting head (312) is high-speed steel or powder steel.
3. The cutter head of a bi-metal chain saw as recited in claim 1, wherein: the wear-resistant sawing head (312) is fixedly connected with the base body (311) through welding; the welding mode is lead welding, laser welding, electron beam welding or resistance welding.
4. The cutter head of a bi-metal chain saw as recited in claim 1, wherein: and bending angles A with equal angles are arranged on the base body (311) and the wear-resistant saw cutting head (312).
5. The cutter head of the bi-metal chain saw as recited in claim 4, wherein: the bending angle A ranges from 30 degrees to 60 degrees.
6. The cutter head of a bi-metal chain saw as recited in claim 1, wherein: the cutting edge part (312 a) is obliquely arranged, and the inclined surface where the cutting edge part (312 a) is located and the movement direction of the tool bit (31) are arranged in an acute angle B mode, so that the cutting edge part (312 a) can rapidly break an object.
7. The cutter head of a bi-metal chain saw as recited in claim 6, wherein: the range of the acute angle B is preferably 30-60 degrees.
8. A bi-metal chain saw, characterized in that: the chain saw body (1) comprises a power output mechanism and a cutter head mounting mechanism;
the cutter head mounting mechanism comprises a supporting plate (2) and a chain (3), and the chain (3) is mounted on the periphery of the supporting plate (2) and connected with the power output mechanism; -a plurality of cutter heads (31) according to any one of claims 1 to 7 mounted on the chain (3);
when the power output mechanism acts, the driving chain (3) moves along the supporting plate (2), so that the cutter head (31) on the chain (3) can be close to an object to saw the object.
9. The bi-metal chain saw of claim 8, wherein: the chain (3) comprises transmission pieces (32), connecting pieces (33) and rivets (34), and every two adjacent transmission pieces (32) are connected through the rivets (34) at the two ends of the connecting pieces (33);
the cutter head (31) is positioned between every two transmission sheets (32) and is also connected with the transmission sheets (32) through rivets (34) at two ends; more than one cutter head (31) is alternately distributed on two sides of the transmission sheet (32), and the connecting sheets (33) are adaptively alternated along with the alternately distributed cutter heads (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220699528.2U CN216938739U (en) | 2022-03-29 | 2022-03-29 | Bimetal chain saw tool bit and chain saw containing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220699528.2U CN216938739U (en) | 2022-03-29 | 2022-03-29 | Bimetal chain saw tool bit and chain saw containing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216938739U true CN216938739U (en) | 2022-07-12 |
Family
ID=82299799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220699528.2U Expired - Fee Related CN216938739U (en) | 2022-03-29 | 2022-03-29 | Bimetal chain saw tool bit and chain saw containing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216938739U (en) |
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2022
- 2022-03-29 CN CN202220699528.2U patent/CN216938739U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220712 |