CN105946061A - Felling saw - Google Patents
Felling saw Download PDFInfo
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- CN105946061A CN105946061A CN201610538691.XA CN201610538691A CN105946061A CN 105946061 A CN105946061 A CN 105946061A CN 201610538691 A CN201610538691 A CN 201610538691A CN 105946061 A CN105946061 A CN 105946061A
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- Prior art keywords
- sheet
- casing
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- hole
- cutting tip
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Classifications
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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
- B27B17/00—Chain saws; Equipment therefor
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G23/00—Forestry
- A01G23/02—Transplanting, uprooting, felling or delimbing trees
- A01G23/08—Felling trees
- A01G23/091—Sawing apparatus specially adapted for felling trees
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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
- B27B17/00—Chain saws; Equipment therefor
- B27B17/14—Arrangements for stretching the 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
- B27B33/142—Cutter elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G19/00—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
- B27G19/003—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for chain saws
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental Sciences (AREA)
- Sawing (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The invention discloses a felling saw. The felling saw comprises a casing provided with a side surface opening, a cover plate connected on one side surface of the casing, guide rails fixedly mounted on one inner side wall of the casing and arranged in the front-and-back direction of the casing, a mounting plate glidingly connected onto the guide rails, an electric push rod connected between the mounting plate and the back part of the inside of the casing as well as a motor fixedly connected on the mounting plate, wherein a rotating shaft of the motor extends to one side wall of the casing; the felling saw further comprises a guide plate connected to one outer side wall of the casing, chain wheels connected at the front end of the guide plate and on the rotating shaft of the motor as well as a saw chain connected between the two chain wheels. The tightness degree of the saw chain is adjusted automatically and conveniently through cooperative work of the electric push rod and a tension sensor, and the saw chain can be automatically adjusted to the state suitable for normal work without experience.
Description
Technical field
The invention belongs to electric valve wood saw field, be specifically related to the saw chain structure of felling saw.
Background technology
The saw chain of existing felling saw be elasticity be all manually to regulate, need more to rely on micro-judgment, regulation more bothers.Additionally, the saw chain of existing common felling saw includes connection chain link, left cutter link and right cutter link, left cutter link and right cutter link are arranged in turn, and it is equipped with a connection chain link between adjacent left cutter link and right cutter link, by driving sheet to coordinate rivet interlacement to get up between adjacent link；General cutter link includes two and connects sheet, it is connected with substantially l-shaped cutting blade on one of them connection sheet, and the blade end of cutting blade front end slightly forward extends out, in the moment that blade contacts with cut object, cutting blade is by the active force reverse with cut direction, and this active force a component can produce shearing force radially to rivet, another one component can produce axial pulling force to rivet, make manufactured head and be connected between sheet generation pressure, make manufactured head be connected sheet contact portion produce loosen, rivet be connected sheet loosen after, movement in various degree is produced owing to connecting the position of sheet, the anti-shear ability of rivet declines the most therewith, rivet is especially bigger by cutting blade side stress, easily produce strain even to rupture, there is bigger potential safety hazard.
Summary of the invention
The technical problem to be solved is: the deficiency existed for prior art, it is provided that a kind of structure is ingenious, and intensity is high, and cutting speed is fast, the compensating roller convenience of saw chain, the felling saw structure that service life is relatively long.
For realizing the purpose of the present invention, it is achieved by the following technical solutions: a kind of felling saw, include the casing of lateral opening, it is connected to the cover plate of cabinet sides, it is fixedly mounted on internal side of shell wall and the guide rail arranged along casing fore-and-aft direction, the installing plate being slidably connected on guide rail, is connected to the electric pushrod between rear portion in installing plate and casing, is fixedly connected on installing plate and rotating shaft extend out to the motor of chassis sidewall；Also include the guide plate being connected to casing lateral wall, be connected to the sprocket wheel on bar nose and machine shaft, and be connected to the saw chain between two sprocket wheels；
The bar hole arranged with guide rail parallel that power supply machine rotating shaft passes is offered on described chassis sidewall；Described casing rear end is connected with rear handle, and casing upper end is connected with up knob；It is also associated with pulling force sensor between described electric pushrod and installing plate, control circuit plate and accumulator it is also equipped with in described casing, above described casing, the position near rear handle is provided with start stop switch, is positioned at start stop switch front and is also equipped with two in order to the degree of tightness switch adjusting saw chain elasticity above casing；Described pulling force sensor, accumulator, start stop switch and degree of tightness switch electrically connect with control circuit plate respectively；
Described degree of tightness switch include one dismantle that saw chain time control electric pushrod shortens second by compressing switch and one controls when installing saw chain that electric pushrod extends first by compressing switch；
Described pulling force sensor detection felling saw idling conditions time value of thrust, control circuit plate by value of thrust with pulling force setting value compared with after, control described electric pushrod elongation or shortening, make saw chain be maintained at tensioning state；Described pulling force setting value is 40-60N；
Described saw chain includes by driving the connection chain link that is connected of sheet and cutter link, and described driving sheet is rotationally connected by rivet respectively with being connected between chain link, cutter link, and described cutter link includes the left cutter link that arranges in turn and right cutter link；
The described chain link that connects is connected sheets by two and is integrally attached to two and connects the connecting portions of side in the middle of leaf length directions and constitute, and connects chain link by a complete sheet metal punch forming；Offering two huge linkage hole on one described connection sheet, on another described connection sheet, the position of corresponding two huge linkage hole offers two little connecting holes, and the aperture of little connecting hole is less than the aperture of huge linkage hole；Chamfering is all formed between described huge linkage hole, little connecting hole and the inside and outside wall being connected sheet；The periphery being positioned at little connecting hole in the described outside wall surface connecting sheet having offered little connecting hole forms recessed circle a；Each described connection sheet differs from the arc that side is evagination of connecting portion, and the outer end of arc forms jagged cutting；
The hardness of described connection sheet is HRC45-HRC50, described connecting portion, and connecting portion is HRC40-HRC45 with the hardness being connected sheet connecting part；
On described connection chain link relative to huge linkage hole and little connecting hole between be connected with a lasso, form, on two end faces of lasso, the clamping flange collar matched with the chamfering position on huge linkage hole, little connecting hole respectively, the periphery of lasso is rotatably assorted with the connecting hole driven on sheet and is connected, having a positioning step portion in the middle of the inner circumferential of lasso, it is different two socket parts, aperture that lasso inner circumferential is positioned at the both sides in positioning step portion；
The hardness of described lasso periphery is HRC50-HRC55, and the hardness of lasso inner circumferential is HRC40-HRC45；
Described left cutter link includes the main connection sheet being positioned on the left of cutting direction, it is positioned at the secondary connection sheet on the right side of cutting direction, it is integrally attached to main connection sheet and the secondary connection part connected between middle side, leaf length direction, it is integrally attached to the cutting tip away from connection part side on main connection sheet, and it is integrally attached on main connection sheet and is positioned at the spacing head in cutting tip front, leave a breach between spacing head and cutting tip；Described left cutter link is by a complete sheet metal punch forming；Offering two huge linkage hole on described main connection sheet, on described secondary connection sheet, the position of corresponding two huge linkage hole offers two little connecting holes, and the aperture of little connecting hole is less than the aperture of huge linkage hole；Chamfering is all formed between described huge linkage hole, little connecting hole and the inside and outside wall being connected sheet；The periphery being positioned at little connecting hole in the described secondary outside wall surface connecting sheet forms recessed circle b；In described left cutter link relative to huge linkage hole, be also connected with described lasso between little connecting hole；
Described cutting tip is overall in front wide and rear narrow taper cambered surface, cutting tip outwards bends near one end of spacing head with the main sheet connected component that is connected, the front end of cutting tip forms the first blade near main connection sheet side and forms, near secondary the second blade connecting sheet side, the first blade and the second blade joint, the point of a knife extended to cutting direction；Described cutting tip front end and cutting tip internal face crossover position machine-shaping respectively have described first blade of formation, the first grinding face of the second blade and the second grinding face；
The ratio of the radius of periphery residing for described first grinding face and the second grinding face is 4 5-5 6, and residing for the first grinding face, the radius of periphery is 8-12mm；The angle a forming 41-43 degree between zip length direction is cut in the axis p of circumference residing for described first grinding face and left cut, forms the angle c of 46-48 degree residing for described first grinding face between axis and the left cutter link width of circumference；The angle b forming 47-49 degree between zip length direction is cut in the axis q of circumference residing for described second grinding face and left cut, forms the angle d of 126-128 degree residing for described second grinding face between axis and the left cutter link width of circumference；
Described point of a knife cuts on zip length direction relative with spacing head in left cut, and distance t between point of a knife and spacing head thickness direction intermediate point is 0-0.1mm；Described cutting tip front end outside wall surface is 1-3mm with main distance s being connected between sheet outer face；
Described main connection sheet, the secondary hardness connecting sheet are HRC45-HRC50, described connection part, and connection part is connected sheet with main, the secondary hardness connecting sheet connecting part is HRC40-HRC45, described cutting tip front portion hardness is HRC55-HRC60, and described cutting tip rear portion hardness is HRC50-HRC55；
Described right cut is cut the cutting tip of chain link, spacing head, huge linkage hole and little connecting hole and is cut the cutting tip of chain link, spacing head, huge linkage hole and the setting of little connecting hole specular relative to left cut, and the mirror image face of described specular is to be connected sheet, secondary the connection parallel and equidistant plane of sheet with main；
Described rivet is made up of manufactured head, thick bar portion, thin rod part and the riveting end that one connects successively, and thick bar portion and thin rod part connecting position form a location shoulder；Rivet penetrates from huge linkage hole, passes from little connecting hole, and described location shoulder matches with the positioning step portion of lasso, and thick bar portion, thin rod part are connected with two socket part interference fit of lasso inner circumferential respectively；After described riveting end grinds riveting formation riveting head by pendulum, the corresponding recessed circle a of the inwall of riveting head, the position of recessed circle b form the riveting ring matched with recessed circle a, recessed circle b；
It is HRC28-HRC30 that described rivet is positioned at the periphery hardness of thin rod part and riveting end junction, and the hardness of described riveting end other parts is HRC35-HRC37, and the hardness of described rivet other parts is HRC58-HRC60；
Described HRC is the C scale of Rockwell hardness scale.
Compared with prior art, the invention has the beneficial effects as follows: the pulling force sensor collaborative work with electric pushrod of the elasticity of described saw chain realizes being automatically adjusted, easy to adjust, it is not necessary to experience also can make saw chain be automatically adjusted to the state being suitable to normally work.The rivet of described saw chain is made up of different two sections of thickness, the integrative-structure of interference fit is formed with lasso after being connected, and connect and make to be in relatively-stationary state between two connection sheets by connecting portion connection between the connection sheet of chain link, connecting again by connection part between main connection sheet and the secondary connection sheet of cutter link makes main connection sheet and secondary connection be in relatively-stationary state between sheet, so lasso snaps in after inserting the connecting hole driving sheet when mounted between two huge linkage hole and little connecting holes connected between sheet again, penetrate rivet the most again to fix, assembling accurately puts in place；After riveting end riveting is shaped to riveting head, the riveting ring that riveting head inwall is formed is interlocked with recessed circle, improves the soundness after rivet interlacement；Additionally the hardness of thin rod part and the periphery of riveting end crossover position is minimum relative to other position, so after riveting end riveting molding, the minimum region of this hardness is squeezed and forms higher density, and is formed with little connecting hole and coordinate closely and produce pretightning force, is not likely to produce loosening；And one section of thick bar portion one side has bigger diameter and higher hardness, anti-shear performance is excellent, and manufactured head is for molding in advance and has higher hardness, is not easy to deformation at main connection sheet by manufactured head position during along the axial thrust load of rivet；Ensure that firmness and the security performance of rivet interlacement on the whole.The cutting tip of described cutter link have employed the structure of two blades, and the point of a knife of two blade connecting position formation is relative with the position of spacing head, when so cutter link is cut, point of a knife contacts with cut object at first, during contacting with cut object completely to two blades, pressure between blade and cut object remains bigger, cutting efficiency is high, and blade touches with cutting object join on skew with blade in cutting object contact process, blade is by oblique friction, it is possible to the long period keeps sharp state.Additionally, two blades to arrange angle suitable so that the cutter link stress when cutting is the most axially vertical with rivet, decreases the radial wobble that saw chain is produced by radial component, and entirety extends the safe operating life of saw chain.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of part saw chain.
Fig. 3 is the assembling structural representation connecting chain link with rivet,
Fig. 4 is the sectional structure schematic diagram connecting chain link with rivet confined state.
Fig. 5, Fig. 6 are the structural representations connecting chain link.
Fig. 7 is the structural representation before the non-riveting of rivet.
Fig. 8 is the structural representation after rivet riveting.
Fig. 9, Figure 10 are the structural representations of lasso.
Figure 11, Figure 12 are the structural representations of left cutter link.
Figure 13 is the side structure schematic diagram of left cutter link.
Figure 14 is the structural representation of left cutter link front end.
Figure 15 is the another kind of structural representation connecting chain link.
L, chain saw；1, chain link is connected；11, sheet is connected；12, connecting portion；14, recessed circle a；15, cutting；2, sheet is driven；3, left cutter link；31, secondary connection sheet；311, recessed circle b；32, main connection sheet；33, spacing head；34, cutting tip；341, the first blade；3411, the first grinding face；342, the second blade；3421, the second grinding face；343, point of a knife；35, connection part；4, right cutter link；5, rivet；51, manufactured head；52, thick bar portion；53, thin rod part；54, location shoulder；55, riveting end；550, riveting head；551, riveting ring；56, lasso；561, positioning step portion；562, clamping flange collar；61, little connecting hole；62, huge linkage hole；7, casing；70, cover plate；71, rear handle；72, up knob；73, electric pushrod；74, pulling force sensor；75, motor；76, guide rail；77, installing plate；78, start stop switch；79, degree of tightness switch；8, guide plate.
Detailed description of the invention
Below according to accompanying drawing, the detailed description of the invention of the present invention is made a detailed explanation.
Embodiment
1
According to shown in Fig. 1 to Figure 14, the present embodiment is a kind of felling saw, include the casing 7 of lateral opening, it is connected to the cover plate 70 of cabinet sides, it is fixedly mounted on internal side of shell wall and the guide rail 76 arranged along casing fore-and-aft direction, the installing plate 77 being slidably connected on guide rail, is connected to the electric pushrod 73 between rear portion in installing plate and casing, is fixedly connected on installing plate and rotating shaft extend out to the motor 75 of chassis sidewall；Also include the guide plate 8 being connected to casing lateral wall, be connected to the sprocket wheel on bar nose and machine shaft, and the saw chain L being connected between two sprocket wheels.
The bar hole arranged with guide rail parallel that power supply machine rotating shaft passes is offered on described chassis sidewall；Described casing rear end is connected with rear handle 71, and casing upper end is connected with up knob 72；Pulling force sensor 74 it is also associated with between described electric pushrod and installing plate, control circuit plate and accumulator it is also equipped with in described casing, above described casing, the position near rear handle is provided with start stop switch 78, is positioned at start stop switch front and is also equipped with two in order to the degree of tightness switch 79 adjusting saw chain elasticity above casing；Described pulling force sensor, accumulator, start stop switch and degree of tightness switch electrically connect with control circuit plate respectively.
Described degree of tightness switch include one dismantle that saw chain time control electric pushrod shortens second by compressing switch and one controls when installing saw chain that electric pushrod extends first by compressing switch.
Described pulling force sensor detection felling saw idling conditions time value of thrust, control circuit plate by value of thrust with pulling force setting value compared with after, control described electric pushrod elongation or shortening, make saw chain be maintained at tensioning state；Described pulling force setting value is 45-55N.
Described saw chain includes the connection chain link 1 by driving sheet 2 to be connected and cutter link, and described driving sheet is rotationally connected by rivet respectively with being connected between chain link, cutter link, and described cutter link includes left cutter link 3 and the right cutter link 4 arranged in turn.
The described chain link that connects is connected sheets 11 by two and is integrally attached to two and connects the connecting portions 12 of side in the middle of leaf length directions and constitute, and connects chain link by a complete sheet metal punch forming；Offering two huge linkage hole 62 on one described connection sheet, on another described connection sheet, the position of corresponding two huge linkage hole offers two little connecting holes 61, and the aperture of little connecting hole is less than the aperture of huge linkage hole；Chamfering is all formed between described huge linkage hole, little connecting hole and the inside and outside wall being connected sheet；The periphery being positioned at little connecting hole in the described outside wall surface connecting sheet having offered little connecting hole forms recessed circle a14；Each described connection sheet differs from the arc that side is evagination of connecting portion, and the outer end of arc forms jagged cutting 15；
The hardness of described connection sheet is HRC46, described connecting portion, and connecting portion is HRC42 with the hardness being connected sheet connecting part.Connecting portion position is the softest enables following lasso to fit more easily into.
On described connection chain link relative to huge linkage hole and little connecting hole between be connected with a lasso 56, form, on two end faces of lasso, the clamping flange collar 562 matched with the chamfering position on huge linkage hole, little connecting hole respectively, the periphery of lasso is rotatably assorted with the connecting hole driven on sheet and is connected, having a positioning step portion 561 in the middle of the inner circumferential of lasso, it is different two socket parts, aperture that lasso inner circumferential is positioned at the both sides in positioning step portion.
The hardness of described lasso periphery is HRC55, and the hardness of lasso inner circumferential is HRC40.Lasso periphery is rotationally connected with driving the connecting hole on sheet, and hardness relatively high wear resistance, lasso inner circumferential hardness is slightly lower, closely cooperates with rivet and forms certain radial tightening power.
Described left cutter link includes the main connection sheet 32 being positioned on the left of cutting direction, it is positioned at the secondary connection sheet 31 on the right side of cutting direction, it is integrally attached to main connection sheet and the secondary connection part 35 connected between middle side, leaf length direction, it is integrally attached to the cutting tip 34 away from connection part side on main connection sheet, and it is integrally attached on main connection sheet and is positioned at spacing 33 of cutting tip front, leave a breach between spacing head and cutting tip；Described left cutter link is by a complete sheet metal punch forming；Offering two huge linkage hole 62 on described main connection sheet, on described secondary connection sheet, the position of corresponding two huge linkage hole offers two little connecting holes 61, and the aperture of little connecting hole is less than the aperture of huge linkage hole；Chamfering is all formed between described huge linkage hole, little connecting hole and the inside and outside wall being connected sheet；The periphery being positioned at little connecting hole in the described secondary outside wall surface connecting sheet forms recessed circle b311；In described left cutter link relative to huge linkage hole, be also connected with described lasso between little connecting hole.
Described cutting tip is overall in front wide and rear narrow taper cambered surface, cutting tip outwards bends near one end of spacing head with the main sheet connected component that is connected, the front end of cutting tip forms the first blade 341 near main connection sheet side and forms, near secondary the second blade 342 connecting sheet side, the first blade and the second blade joint, the point of a knife 343 extended to cutting direction；Described cutting tip front end and cutting tip internal face crossover position machine-shaping respectively have formation described first blade, the first grinding face 3411 and the second grinding face 3421 of the second blade.
Residing for described first grinding face and the second grinding face, the ratio of the radius of periphery is 45, and residing for the first grinding face, the radius of periphery is 10mm；The angle a forming 42 degree between zip length direction is cut in the axis p of circumference residing for described first grinding face and left cut, forms the angle c of 47 degree residing for described first grinding face between axis and the left cutter link width of circumference；The angle b forming 48 degree between zip length direction is cut in the axis q of circumference residing for described second grinding face and left cut, forms the angle d of 127 degree residing for described second grinding face between axis and the left cutter link width of circumference.
Described point of a knife cuts on zip length direction relative with spacing head in left cut, and distance t between point of a knife and spacing head thickness direction intermediate point is 0.05mm；Described cutting tip front end outside wall surface is 2mm with main distance s being connected between sheet outer face；Described first blade extends to Middle face position, cutting tip front from cutting tip end face medium position, owing to the wood flour under the most cut can be shredded again by the part at the first blade middle part on the side, will not be stuck in gap position.Two blade intersection location form a fin, point of a knife is positioned at the top of fin, and the tail end of fin extends to main connection sheet side, the wood flour so cut by the second blade can be pushed open toward the secondary sheet side that connects by fin, will not snap into breach side and cause saw chain cisco unity malfunction.
Described main connection sheet, the secondary hardness connecting sheet are HRC47, described connection part, and connection part is connected sheet with main, the secondary hardness connecting sheet connecting part is HRC43, and described cutting tip front portion hardness is HRC60, and described cutting tip rear portion hardness is HRC52.
Described right cut is cut the cutting tip of chain link, spacing head, huge linkage hole and little connecting hole and is cut the cutting tip of chain link, spacing head, huge linkage hole and the setting of little connecting hole specular relative to left cut, and the mirror image face of described specular is to be connected sheet, secondary the connection parallel and equidistant plane of sheet with main.Described main connection sheet, the secondary saying connecting sheet are only easy for describing the position relationship of parts, do not have dividing of the major-minor on essential meaning.
Described rivet is made up of manufactured head 51, thick bar portion 52, thin rod part 53 and the riveting end 55 that one connects successively, and thick bar portion and thin rod part connecting position form a location shoulder 54；Rivet penetrates from huge linkage hole, passes from little connecting hole, and described location shoulder matches with the positioning step portion of lasso, and thick bar portion, thin rod part are connected with two socket part interference fit of lasso inner circumferential respectively；After described riveting end grinds riveting formation riveting head 550 by pendulum, the corresponding recessed circle a of the inwall of riveting head, the position of recessed circle b form the riveting ring 551 matched with recessed circle a, recessed circle b.
It is HRC29 that described rivet is positioned at the periphery hardness of thin rod part and riveting end junction, and the hardness of described riveting end other parts is HRC36, and the hardness of described rivet other parts is HRC59.The hardness of thin rod part and the periphery of riveting end crossover position is minimum relative to other position, so after riveting end riveting molding, the minimum region of this hardness is squeezed and forms higher density, and is formed with little connecting hole and coordinate closely and produce pretightning force, is not likely to produce loosening.
HRC described in literary composition is the C scale of Rockwell hardness scale.
Embodiment 2
The present embodiment is from the difference of embodiment 1 to connect the different of chain link, the connection chain link of the present embodiment is as shown in figure 15, direction shown in arrow is the cut direction of saw chain, the distance between arc on two connection sheets of this connection chain link is gradually reduced along saw chain cut direction, distance m that i.e. arc is anterior is less than distance n at arc rear portion, the difference of m and n is between 0.5-1.0mm, so also state in slight curvature of the cutting on arc, the score that cutting is formed on cut material produces extruding in opposite directions between two connection sheets, so can reduce the vibrations connected between sheet and rivet, it is beneficial to extend the service life of saw chain.
Above-described embodiment is only the preferably embodiment of the present invention, and in addition, the present invention can also have other implementations.It should be noted that on the premise of without departing from present inventive concept, any conspicuously improved and modification all should fall under the scope of the present invention.
Claims (1)
1. a felling saw, it is characterized in that: include the casing of lateral opening, it is connected to the cover plate of cabinet sides, it is fixedly mounted on internal side of shell wall and the guide rail arranged along casing fore-and-aft direction, the installing plate being slidably connected on guide rail, it is connected to the electric pushrod between rear portion in installing plate and casing, is fixedly connected on installing plate and rotating shaft extend out to the motor of chassis sidewall；Also include the guide plate being connected to casing lateral wall, be connected to the sprocket wheel on bar nose and machine shaft, and be connected to the saw chain between two sprocket wheels；
The bar hole arranged with guide rail parallel that power supply machine rotating shaft passes is offered on described chassis sidewall；Described casing rear end is connected with rear handle, and casing upper end is connected with up knob；It is also associated with pulling force sensor between described electric pushrod and installing plate, control circuit plate and accumulator it is also equipped with in described casing, above described casing, the position near rear handle is provided with start stop switch, is positioned at start stop switch front and is also equipped with two in order to the degree of tightness switch adjusting saw chain elasticity above casing；Described pulling force sensor, accumulator, start stop switch and degree of tightness switch electrically connect with control circuit plate respectively；
Described degree of tightness switch include one dismantle that saw chain time control electric pushrod shortens second by compressing switch and one controls when installing saw chain that electric pushrod extends first by compressing switch；
Described pulling force sensor detection felling saw idling conditions time value of thrust, control circuit plate by value of thrust with pulling force setting value compared with after, control described electric pushrod elongation or shortening, make saw chain be maintained at tensioning state；Described pulling force setting value is 40-60N；
Described saw chain includes by driving the connection chain link that is connected of sheet and cutter link, and described driving sheet is rotationally connected by rivet respectively with being connected between chain link, cutter link, and described cutter link includes the left cutter link that arranges in turn and right cutter link；
The described chain link that connects is connected sheets by two and is integrally attached to two and connects the connecting portions of side in the middle of leaf length directions and constitute, and connects chain link by a complete sheet metal punch forming；Offering two huge linkage hole on one described connection sheet, on another described connection sheet, the position of corresponding two huge linkage hole offers two little connecting holes, and the aperture of little connecting hole is less than the aperture of huge linkage hole；Chamfering is all formed between described huge linkage hole, little connecting hole and the inside and outside wall being connected sheet；The periphery being positioned at little connecting hole in the described outside wall surface connecting sheet having offered little connecting hole forms recessed circle a；Each described connection sheet differs from the arc that side is evagination of connecting portion, and the outer end of arc forms jagged cutting；
The hardness of described connection sheet is HRC45-HRC50, described connecting portion, and connecting portion is HRC40-HRC45 with the hardness being connected sheet connecting part；
On described connection chain link relative to huge linkage hole and little connecting hole between be connected with a lasso, form, on two end faces of lasso, the clamping flange collar matched with the chamfering position on huge linkage hole, little connecting hole respectively, the periphery of lasso is rotatably assorted with the connecting hole driven on sheet and is connected, having a positioning step portion in the middle of the inner circumferential of lasso, it is different two socket parts, aperture that lasso inner circumferential is positioned at the both sides in positioning step portion；
The hardness of described lasso periphery is HRC50-HRC55, and the hardness of lasso inner circumferential is HRC40-HRC45；
Described left cutter link includes the main connection sheet being positioned on the left of cutting direction, it is positioned at the secondary connection sheet on the right side of cutting direction, it is integrally attached to main connection sheet and the secondary connection part connected between middle side, leaf length direction, it is integrally attached to the cutting tip away from connection part side on main connection sheet, and it is integrally attached on main connection sheet and is positioned at the spacing head in cutting tip front, leave a breach between spacing head and cutting tip；Described left cutter link is by a complete sheet metal punch forming；Offering two huge linkage hole on described main connection sheet, on described secondary connection sheet, the position of corresponding two huge linkage hole offers two little connecting holes, and the aperture of little connecting hole is less than the aperture of huge linkage hole；Chamfering is all formed between described huge linkage hole, little connecting hole and the inside and outside wall being connected sheet；The periphery being positioned at little connecting hole in the described secondary outside wall surface connecting sheet forms recessed circle b；In described left cutter link relative to huge linkage hole, be also connected with described lasso between little connecting hole；
Described cutting tip is overall in front wide and rear narrow taper cambered surface, cutting tip outwards bends near one end of spacing head with the main sheet connected component that is connected, the front end of cutting tip forms the first blade near main connection sheet side and forms, near secondary the second blade connecting sheet side, the first blade and the second blade joint, the point of a knife extended to cutting direction；Described cutting tip front end and cutting tip internal face crossover position machine-shaping respectively have described first blade of formation, the first grinding face of the second blade and the second grinding face；
The ratio of the radius of periphery residing for described first grinding face and the second grinding face is 4 5-5 6, and residing for the first grinding face, the radius of periphery is 8-12mm；The angle a forming 41-43 degree between zip length direction is cut in the axis p of circumference residing for described first grinding face and left cut, forms the angle c of 46-48 degree residing for described first grinding face between axis and the left cutter link width of circumference；The angle b forming 47-49 degree between zip length direction is cut in the axis q of circumference residing for described second grinding face and left cut, forms the angle d of 126-128 degree residing for described second grinding face between axis and the left cutter link width of circumference；
Described point of a knife cuts on zip length direction relative with spacing head in left cut, and distance t between point of a knife and spacing head thickness direction intermediate point is 0-0.1mm；Described cutting tip front end outside wall surface is 1-3mm with main distance s being connected between sheet outer face；
Described main connection sheet, the secondary hardness connecting sheet are HRC45-HRC50, described connection part, and connection part is connected sheet with main, the secondary hardness connecting sheet connecting part is HRC40-HRC45, described cutting tip front portion hardness is HRC55-HRC60, and described cutting tip rear portion hardness is HRC50-HRC55；
Described right cut is cut the cutting tip of chain link, spacing head, huge linkage hole and little connecting hole and is cut the cutting tip of chain link, spacing head, huge linkage hole and the setting of little connecting hole specular relative to left cut, and the mirror image face of described specular is to be connected sheet, secondary the connection parallel and equidistant plane of sheet with main；
Described rivet is made up of manufactured head, thick bar portion, thin rod part and the riveting end that one connects successively, and thick bar portion and thin rod part connecting position form a location shoulder；Rivet penetrates from huge linkage hole, passes from little connecting hole, and described location shoulder matches with the positioning step portion of lasso, and thick bar portion, thin rod part are connected with two socket part interference fit of lasso inner circumferential respectively；After described riveting end grinds riveting formation riveting head by pendulum, the corresponding recessed circle a of the inwall of riveting head, the position of recessed circle b form the riveting ring matched with recessed circle a, recessed circle b；
It is HRC28-HRC30 that described rivet is positioned at the periphery hardness of thin rod part and riveting end junction, and the hardness of described riveting end other parts is HRC35-HRC37, and the hardness of described rivet other parts is HRC58-HRC60；
Described HRC is the C scale of Rockwell hardness scale.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710781463.XA CN107322696A (en) | 2016-07-06 | 2016-07-06 | A kind of felling saw |
| CN201710966129.1A CN107825527A (en) | 2016-07-06 | 2016-07-06 | Using the electronic felling saw and its method of work of control board |
| CN201710781460.6A CN107322695A (en) | 2016-07-06 | 2016-07-06 | A kind of felling saw |
| CN201710962896.5A CN107756539A (en) | 2016-07-06 | 2016-07-06 | A kind of electronic felling saw with control board |
| CN201610538691.XA CN105946061B (en) | 2016-07-06 | 2016-07-06 | A kind of felling saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610538691.XA CN105946061B (en) | 2016-07-06 | 2016-07-06 | A kind of felling saw |
Related Child Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710966129.1A Division CN107825527A (en) | 2016-07-06 | 2016-07-06 | Using the electronic felling saw and its method of work of control board |
| CN201710962896.5A Division CN107756539A (en) | 2016-07-06 | 2016-07-06 | A kind of electronic felling saw with control board |
| CN201710781460.6A Division CN107322695A (en) | 2016-07-06 | 2016-07-06 | A kind of felling saw |
| CN201710781463.XA Division CN107322696A (en) | 2016-07-06 | 2016-07-06 | A kind of felling saw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105946061A true CN105946061A (en) | 2016-09-21 |
| CN105946061B CN105946061B (en) | 2017-11-24 |
Family
ID=56901354
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710962896.5A Pending CN107756539A (en) | 2016-07-06 | 2016-07-06 | A kind of electronic felling saw with control board |
| CN201710781463.XA Withdrawn CN107322696A (en) | 2016-07-06 | 2016-07-06 | A kind of felling saw |
| CN201710966129.1A Pending CN107825527A (en) | 2016-07-06 | 2016-07-06 | Using the electronic felling saw and its method of work of control board |
| CN201610538691.XA Expired - Fee Related CN105946061B (en) | 2016-07-06 | 2016-07-06 | A kind of felling saw |
| CN201710781460.6A Withdrawn CN107322695A (en) | 2016-07-06 | 2016-07-06 | A kind of felling saw |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710962896.5A Pending CN107756539A (en) | 2016-07-06 | 2016-07-06 | A kind of electronic felling saw with control board |
| CN201710781463.XA Withdrawn CN107322696A (en) | 2016-07-06 | 2016-07-06 | A kind of felling saw |
| CN201710966129.1A Pending CN107825527A (en) | 2016-07-06 | 2016-07-06 | Using the electronic felling saw and its method of work of control board |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710781460.6A Withdrawn CN107322695A (en) | 2016-07-06 | 2016-07-06 | A kind of felling saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (5) | CN107756539A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106973710A (en) * | 2017-05-09 | 2017-07-25 | 钱月珍 | Tree-dozer branch cleaning plant |
| CN111331738A (en) * | 2020-04-13 | 2020-06-26 | 宁波鲁仕锯链科技有限公司 | Saw chain connecting piece, saw chain and saw chain transmission system |
| US20220241878A1 (en) * | 2021-02-03 | 2022-08-04 | Techtronic Cordless Gp | Chainsaws |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238915A (en) * | 2019-05-14 | 2019-09-17 | 嘉兴劲境电子商务有限公司 | A kind of numerically-controlled machine tool of rapid changing knife |
| CN113296477B (en) * | 2021-05-15 | 2022-05-20 | 泉州华大超硬工具科技有限公司 | Chain arm saw electrical control system |
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| CN103386508A (en) * | 2013-08-01 | 2013-11-13 | 苏州赛特尔集团机械有限公司 | Saw blade tensioning device for band sawing machine |
| CN203944923U (en) * | 2014-06-30 | 2014-11-19 | 陈城斌 | Manual tensioning electric chain saw |
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- 2016-07-06 CN CN201710962896.5A patent/CN107756539A/en active Pending
- 2016-07-06 CN CN201710781463.XA patent/CN107322696A/en not_active Withdrawn
- 2016-07-06 CN CN201710966129.1A patent/CN107825527A/en active Pending
- 2016-07-06 CN CN201610538691.XA patent/CN105946061B/en not_active Expired - Fee Related
- 2016-07-06 CN CN201710781460.6A patent/CN107322695A/en not_active Withdrawn
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|---|---|---|---|---|
| GB2042974A (en) * | 1979-02-26 | 1980-10-01 | Omark Industries Inc | Chain saw |
| CN101121273A (en) * | 2006-08-10 | 2008-02-13 | 安德烈亚斯.斯蒂尔两合公司 | Connecting link for a saw chain |
| CN103402718A (en) * | 2011-03-04 | 2013-11-20 | 布楼恩特公司 | Chain link sharpening method and apparatus |
| JP2013208805A (en) * | 2012-03-30 | 2013-10-10 | Hitachi Koki Co Ltd | Chain saw |
| CN103009438A (en) * | 2012-12-05 | 2013-04-03 | 南京德朔实业有限公司 | Chain saw |
| CN105050779A (en) * | 2013-03-27 | 2015-11-11 | 胡斯华纳有限公司 | Chain saw |
| CN204818278U (en) * | 2015-08-28 | 2015-12-02 | 弘大集团有限公司 | Quick tensioning locking device of chain saw saw chain |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106973710A (en) * | 2017-05-09 | 2017-07-25 | 钱月珍 | Tree-dozer branch cleaning plant |
| CN111331738A (en) * | 2020-04-13 | 2020-06-26 | 宁波鲁仕锯链科技有限公司 | Saw chain connecting piece, saw chain and saw chain transmission system |
| US20220241878A1 (en) * | 2021-02-03 | 2022-08-04 | Techtronic Cordless Gp | Chainsaws |
| US12053832B2 (en) * | 2021-02-03 | 2024-08-06 | Techtronic Cordless Gp | Chainsaws |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107825527A (en) | 2018-03-23 |
| CN107322696A (en) | 2017-11-07 |
| CN107756539A (en) | 2018-03-06 |
| CN107322695A (en) | 2017-11-07 |
| CN105946061B (en) | 2017-11-24 |
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