CN107322695A - A kind of felling saw - Google Patents
A kind of felling saw Download PDFInfo
- Publication number
- CN107322695A CN107322695A CN201710781460.6A CN201710781460A CN107322695A CN 107322695 A CN107322695 A CN 107322695A CN 201710781460 A CN201710781460 A CN 201710781460A CN 107322695 A CN107322695 A CN 107322695A
- Authority
- CN
- China
- Prior art keywords
- connection sheet
- connecting hole
- hole
- hardness
- small connecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
Abstract
The invention discloses 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 set along casing fore-and-aft direction, it is slidably connected at the installing plate on guide rail, the electric pushrod between rear portion in installing plate and casing is connected to, is fixedly connected on a mounting board and rotating shaft extend out to the motor of chassis sidewall；Also include the guide plate for being connected to casing lateral wall, be connected to the sprocket wheel on bar nose and machine shaft, and the saw chain being connected between two sprocket wheels.The realization that cooperates of the elasticity of saw chain pulling force sensor with electric pushrod is automatically adjusted, easy to adjust, saw chain is automatically adjusted to the state suitable for normal work without experience.
Description
Technical field
The invention belongs to electronic felling saw field, and in particular to the saw chain structure of felling saw.
Background technology
The saw chain of existing felling saw is that elasticity is all, it is necessary to more by micro-judgment, tune by adjusting manually
Section is more bothered.In addition, 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 set in turn, and a company is equipped between adjacent left cutter link and right cutter link
By driving piece to coordinate rivet interlacement between chain link section, adjacent link；General cutter link includes two connection sheets, its
In be connected with substantially l-shaped cutting blade in a connection sheet, and cutting blade front end blade end slightly to extension
Go out, the moment contacted in blade with material to be cut body phase, cutting blade is by the active force reverse with cut direction, and the effect
One component of power can produce the shearing force of radial direction to rivet, and another component can produce the pulling force of axial direction to rivet, make riveting
Pressure is produced between ailhead and connection sheet, manufactured head is produced loosening with connection sheet contact portion, rivet loosens it with connection sheet
Afterwards, because the position of connection sheet produces different degrees of movement, the anti-shear ability of rivet also declines therewith, rivet especially by
Cutting blade side stress is larger, easily produces strain and is even broken, there is larger potential safety hazard.
The content of the invention
The technical problems to be solved by the invention are：In view of the deficienciess of the prior art, providing a kind of clever structure, by force
Degree is high, and cutting speed is fast, and saw chain is elastic easy to adjust, the relatively long felling saw structure of service life.
To realize the purpose of the present invention, it is achieved using following technical scheme：A kind of felling saw, includes lateral opening
Casing, be connected to the cover plate of cabinet sides, be fixedly mounted on internal side of shell wall and the guide rail set along casing fore-and-aft direction, it is sliding
The dynamic installing plate being connected on guide rail, is connected to the electric pushrod between rear portion in installing plate and casing, is fixedly connected on installation
On plate and rotating shaft extend out to the motor of chassis sidewall；Also include being connected to the guide plate of casing lateral wall, be connected to bar nose and
Sprocket wheel on machine shaft, and the saw chain being connected between two sprocket wheels；
The bar hole set with guide rail parallel that power supply machine rotating shaft is passed is offered on the chassis sidewall；The casing rear end one
Body is connected with rear handle, and casing upper end is connected with up knob；Pulling force is also associated between the electric pushrod and installing plate
It is also equipped with installing close to the position of rear handle above control board and battery, the casing in sensor, the casing
Have above start stop switch, casing to be located in front of start stop switch and be also equipped with two elastic switches to adjust saw chain elasticity；
The pulling force sensor, battery, start stop switch and elastic switch are electrically connected with control board respectively；
The elastic switch includes one is pacifying the second of dismounting saw chain time control electric pushrod shortening by compressing switch with one
The first of control electric pushrod elongation is by compressing switch during dress saw chain；
Value of thrust during pulling force sensor detection felling saw idling conditions, control board is by value of thrust and pulling force setting value
After comparing, control the electric pushrod elongation or shorten, saw chain is maintained at tensioning state；The pulling force setting value is
40-60N；
The saw chain includes the connection chain link and cutter link by driving piece to be connected, the driving piece and connection chain link,
Rotated and connected by rivet respectively between cutter link, the cutter link includes the left cutter link set in turn and right cut is cut
Chain link；
Described connection chain link is by two connection sheets and is integrally attached in the middle of two connection sheet length directions between side
Connecting portion is constituted, and connection chain link is by a complete sheet metal punch forming；Two Dalian are offered in one connection sheet
Hole is connect, the position of two huge linkage holes of correspondence offers two small connecting holes, the hole of small connecting hole in another described connection sheet
Footpath is less than the aperture of huge linkage hole；Chamfering is formed between the inside and outside wall of the huge linkage hole, small connecting hole and connection sheet；
Periphery in the outside wall surface for the connection sheet for having opened up small connecting hole positioned at small connecting hole forms recessed circle a；Each company
Contact pin is different from the arc that the side of connecting portion is evagination, and the outer end of arc forms jagged cutting；
The hardness of the connection sheet is HRC45-HRC50, the connecting portion, and connecting portion and the hardness of connection sheet connecting part
For HRC40-HRC45；
It is connected with the connection chain link between relative huge linkage hole and small connecting hole on a lasso, two end faces of lasso
The clamping flange collar being engaged with the chamfering position on huge linkage hole, small connecting hole, periphery and the driving piece of lasso are formed respectively
On connecting hole be rotatably assorted connection, there is a positioning step portion, lasso inner circumferential is located at positioning step in the middle of the inner circumferential of lasso
The both sides in portion are two different socket parts of aperture；
The hardness of the lasso periphery is HRC50-HRC55, and the hardness of lasso inner circumferential is HRC40-HRC45；
The left cutter link is including the main connection sheet on the left of cutting direction, the secondary connection sheet on the right side of cutting direction,
The connection part between side in the middle of main connection sheet and secondary connection sheet length direction is integrally attached to, is integrally attached in main connection sheet
Cutting tip away from connection part side, and be integrally attached in main connection sheet and the spacing head in front of cutting tip,
A breach is left between spacing head and cutting tip；The left cutter link is by a complete sheet metal punch forming；Institute
State and two huge linkage holes are offered in main connection sheet, the position of two huge linkage holes of correspondence offers two in the secondary connection sheet
Small connecting hole, the aperture of small connecting hole is less than the aperture of huge linkage hole；The huge linkage hole, small connecting hole and connection sheet it is inside and outside
Chamfering is formed between wall；Periphery in the outside wall surface of the secondary connection sheet positioned at small connecting hole forms recessed circle b；It is described
Also described lasso is connected with left cutter link between relative huge linkage hole, small connecting hole；
Described cutting tip is in integrally front wide and rear narrow taper cambered surface, and cutting tip is with main connection sheet connected component close to spacing
One end outward bending of head, the front end of cutting tip is formed close to the first blade of main connection sheet side and close to secondary connection sheet
Second blade of side, the first blade and the second blade joint form the point of a knife extended to cutting direction；The cutting tip
Machine-shaping has the first grinding to form first blade, the second blade respectively with cutting tip internal face crossover position for front end
Face and the second grinding surface；
The ratio between radius of periphery residing for first grinding surface and the second grinding surface is 4 ﹕ 5-5 ﹕ 6, circle residing for the first grinding surface
The radius of side face is 8-12mm；Formation between zip length direction is cut in the axis p of circumference and left cut residing for first grinding surface
The angle a of 41-43 degree, 46-48 is formed residing for first grinding surface between the axis of circumference and left cutter link width
The angle c of degree；The axis q of circumference and left cut residing for second grinding surface form 47-49 degree between cutting zip length direction
Angle b, forms the angle of 126-128 degree between the axis of circumference and left cutter link width residing for second grinding surface
d；
The point of a knife cuts relative with spacing head on zip length direction in left cut, and point of a knife and spacing head thickness direction intermediate point it
Between apart from t be 0-0.1mm；The distance between cutting tip front end outside wall surface and main connection sheet outer face s are 1-3mm；
The main connection sheet, the hardness of secondary connection sheet be HRC45-HRC50, the connection part, and connection part with main connection sheet,
The hardness of secondary connection sheet connecting part is HRC40-HRC45, and the anterior hardness of the cutting tip is HRC55-HRC60, described to cut
Paring blade rear portion hardness is HRC50-HRC55；
The cutting tip of the right cutter link, spacing head, the bite of huge linkage hole and the relatively left cutter link of small connecting hole
Piece, spacing head, huge linkage hole and small connecting hole specular are set, and the mirror image face of the specular is and main connection sheet, pair
Connection sheet is parallel and equidistant plane；
The rivet is made up of the manufactured head of integrally connected successively, thick bar portion, thin rod part and riveting end, thick bar portion and thin rod part phase
Connect position and form a positioning shoulder；Rivet is penetrated from huge linkage hole, is passed from small connecting hole, the positioning of the positioning shoulder and lasso
Stage portion is engaged, and thick bar portion, thin rod part are connected with two socket parts interference fit of lasso inner circumferential respectively；The riveting end leads to
Overswing grinds riveting and formed after riveting head, and the recessed circle a of inwall correspondence of riveting head, recessed circle b position form and matched with recessed circle a, recessed circle b
The riveting ring of conjunction；
It is HRC28-HRC30, the other portions in riveting end that the rivet, which is located at thin rod part and the periphery hardness of riveting end junction,
The hardness divided is HRC35-HRC37, and the hardness of the rivet other parts is HRC58-HRC60；
The HRC is the C scale of Rockwell hardness scale.
Compared with prior art, the beneficial effects of the invention are as follows：The elasticity of the saw chain is drawn with electric pushrod
Force snesor collaborative work realization is automatically adjusted, easy to adjust, can also make saw chain be automatically adjusted to be suitable to normal work without experience
The state of work.The rivet of the saw chain is made up of different two sections of thickness, and the one knot of interference fit is formed after being connected with lasso
Structure, and being connected between the connection sheet of connection chain link by connecting portion makes to be in relatively-stationary state between two connection sheets, cuts
Cutting to connect again by connection part between the main connection sheet of chain link and secondary connection sheet makes to be between main connection sheet and secondary connection sheet
Relatively-stationary state, such lasso insert when mounted after the connecting hole of driving piece be caught in again it is big between two connection sheets
Between connecting hole and small connecting hole, rivet then being penetrated again and is fixed, assembling is accurate in place；At riveting end, riveting is shaped to riveting head
Afterwards, the riveting ring of riveting head inwall formation is interlocked with recessed circle, improves the soundness after rivet interlacement；Other thin rod part
Other positions relative with the hardness of the periphery of riveting end crossover position are minimum, and so after the shaping of riveting end riveting, this is hard
The minimum region of degree is squeezed to form higher density, and is formed closely with generation pretightning force is merged, no with small connecting hole
It is also easy to produce loosening；And one section of thick bar portion one side has larger diameter and higher hardness, anti-shear performance is excellent, manufactured head
For advance comprising and with higher hardness, when main connection sheet is by axial thrust load along rivet, manufactured head position is not easy to become
Shape；The firmness and security performance of rivet interlacement are ensure that on the whole.The cutting tip of the cutter link employs two knives
The structure of sword, and the point of a knife of two blade connecting position formation is relative with the position of spacing head, such cutter link is cut
When point of a knife contacted at first with cut object, during being contacted completely with cut object to two blades, blade is with being cut
Cut the pressure between object and remain larger, cutting efficiency is high, and blade and blade in cutting object contact process and cutting
The oblique contact of object, blade can be kept sharp state the long period by oblique friction.In addition, the setting of two blades
Angle is suitable so that stress of the cutter link in cutting is axially vertical substantially with rivet, reduces saw chain by radial component
And the radial wobble produced, integrally extend the safe operating life of saw chain.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of part saw chain.
Fig. 3 is connection chain link and the assembling structure schematic diagram of rivet,
Fig. 4 is the cross section structure diagram of connection chain link and rivet confined state.
Fig. 5, Fig. 6 are the structural representations of connection 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 another structural representation of connection chain link.
L, chain saw；1st, connection chain link；11st, connection sheet；12nd, connecting portion；14th, recessed circle a；15th, cutting；2nd, piece is driven；3rd, it is left
Cutter link；31st, secondary connection sheet；311st, recessed circle b；32nd, main connection sheet；33rd, spacing head；34th, cutting tip；341st, the first knife
Sword；3411st, the first grinding surface；342nd, the second blade；3421st, the second grinding surface；343rd, point of a knife；35th, connection part；4th, right cutting chain
Section；5th, rivet；51st, manufactured head；52nd, thick bar portion；53rd, thin rod part；54th, shoulder is positioned；55th, riveting end；550th, riveting head；551st, riveting
Pressure ring；56th, lasso；561st, positioning step portion；562nd, clamping flange collar；61st, small connecting hole；62nd, huge linkage hole；7th, casing；70th, cover
Plate；71st, rear handle；72nd, up knob；73rd, electric pushrod；74th, pulling force sensor；75th, motor；76th, guide rail；77th, installing plate；
78th, start stop switch；79th, elastic switch；8th, guide plate.
Embodiment
The embodiment of the present invention is made a detailed explanation below according to accompanying drawing.
Embodiment 1
According to Fig. 1 to Figure 14, the present embodiment is a kind of felling saw, includes the casing 7 of lateral opening, is connected to casing side
The cover plate 70 in face, is fixedly mounted on internal side of shell wall and the guide rail 76 set along casing fore-and-aft direction, is slidably connected on guide rail
Installing plate 77, be connected in installing plate and casing the electric pushrod 73 between rear portion, be fixedly connected on a mounting board and rotating shaft
It extend out to the motor 75 of chassis sidewall；Also include the guide plate 8 for being connected to casing lateral wall, be connected to bar nose and machine shaft
On sprocket wheel, and the saw chain L being connected between two sprocket wheels.
The bar hole set with guide rail parallel that power supply machine rotating shaft is passed is offered on the chassis sidewall；After the casing
End is connected with rear handle 71, and casing upper end is connected with up knob 72；Also connect between the electric pushrod and installing plate
It is connected in pulling force sensor 74, the casing and is also equipped with control board and battery, close to rear handle above the casing
Position start stop switch 78 is installed, be located above casing in front of start stop switch and be also equipped with two to adjust saw chain elasticity
Elastic switch 79；The pulling force sensor, battery, start stop switch and elastic switch are electrically connected with control board respectively
Connect.
The elastic switch includes one in dismounting saw chain time control electric pushrod shortening second by compressing switch and one
When installing saw chain, the first of control electric pushrod elongation is by compressing switch.
Value of thrust during the pulling force sensor detection felling saw idling conditions, control board sets value of thrust with pulling force
After definite value compares, control the electric pushrod elongation or shorten, saw chain is maintained at tensioning state；The pulling force setting
It is worth for 45-55N.
The saw chain includes the connection chain link 1 and cutter link by driving piece 2 to be connected, and the driving piece is with being connected
Rotated and connected by rivet respectively between chain link, cutter link, the cutter link includes the He of left cutter link 3 set in turn
Right cutter link 4.
Described connection chain link is by two connection sheets 11 and is integrally attached to side in the middle of two connection sheet length directions
Between connecting portion 12 constitute, connection chain link is by a complete sheet metal punch forming；Offered in one connection sheet
The position of two huge linkage holes of correspondence offers two small connecting hole 61 in two huge linkage holes 62, another described connection sheet,
The aperture of small connecting hole is less than the aperture of huge linkage hole；Between the inside and outside wall of the huge linkage hole, small connecting hole and connection sheet
Form chamfering；Periphery in the outside wall surface for the connection sheet for having opened up small connecting hole positioned at small connecting hole forms recessed circle
a14；Each connection sheet is different from the arc that the side of connecting portion is evagination, and the outer end of arc forms jagged cut
Tooth 15；
The hardness of the connection sheet is that HRC46, the connecting portion, and connecting portion and the hardness of connection sheet connecting part are
HRC42.Connecting portion position is slightly soft to enable following lassos to fit more easily into.
A lasso 56, two of lasso are connected with the connection chain link between relative huge linkage hole and small connecting hole
The clamping flange collar 562 being engaged with the chamfering position on huge linkage hole, small connecting hole, the periphery of lasso are formed on end face respectively
It is rotatably assorted and is connected with the connecting hole on driving piece, there is a positioning step portion 561, lasso inner circumferential position in the middle of the inner circumferential of lasso
In the both sides in positioning step portion be different two socket parts in aperture.
The hardness of the lasso periphery is HRC55, and the hardness of lasso inner circumferential is HRC40.Lasso periphery is with driving on piece
Connecting hole rotates connection, and hardness is compared with high wear resistance, and lasso inner circumferential hardness is slightly lower, is fitted close with rivet and forms certain radial direction
Pretightning force.
The left cutter link includes being located at the main connection sheet 32 on the left of cutting direction, and the pair on the right side of cutting direction is even
Contact pin 31, is integrally attached to the connection part 35 between side in the middle of main connection sheet and secondary connection sheet length direction, is integrally attached to
Cutting tip 34 away from connection part side in main connection sheet, and be integrally attached in main connection sheet and be located at before cutting tip
Spacing first the 33 of side, leave a breach between spacing head and cutting tip；The left cutter link is by a complete metal
Piece punch forming；Two huge linkage holes of correspondence in two huge linkage holes 62, the secondary connection sheet are offered in the main connection sheet
Position offer two small connecting hole 61, the aperture of small connecting hole is less than the aperture of huge linkage hole；The huge linkage hole, little Lian
Connect and form chamfering between hole and the inside and outside wall of connection sheet；Positioned at the outer of small connecting hole in the outside wall surface of the secondary connection sheet
Form recessed circle b311 weeks；Also described set is connected with the left cutter link between relative huge linkage hole, small connecting hole
Circle.
Described cutting tip is in integrally front wide and rear narrow taper cambered surface, and cutting tip and main connection sheet connected component are close
One end outward bending of spacing head, the front end of cutting tip is formed close to the first blade 341 of main connection sheet side and close
Second blade 342 of secondary connection sheet side, the first blade and the second blade joint form the point of a knife extended to cutting direction
343；Machine-shaping to form first blade, the respectively for the cutting tip front end and cutting tip internal face crossover position
The first grinding surface 3411 and the second grinding surface 3421 of two blades.
The ratio between radius of periphery residing for first grinding surface and the second grinding surface is 4 ﹕ 5, circle residing for the first grinding surface
The radius of side face is 10mm；The axis p of circumference and left cut form 42 between cutting zip length direction residing for first grinding surface
The angle a of degree, forms 47 degree of angle between the axis of circumference and left cutter link width residing for first grinding surface
c；The axis q of circumference and left cut residing for second grinding surface are cut and 48 degree of angle b are formed between zip length direction, and described the
The angle d of 127 degree of formation between the axis of circumference residing for two grinding surfaces and left cutter link width.
The point of a knife cuts relative with spacing head on zip length direction in left cut, and in the middle of point of a knife and spacing head thickness direction
The distance between point t is 0.05mm；The distance between cutting tip front end outside wall surface and main connection sheet outer face s are 2mm；
First blade extends to cutting tip front Middle face position from cutting tip top surface medium position, due to so being cut
The wood chip cut off can again be shredded by the part that the first blade is located in the middle part of side, will not be stuck in gap position.Two blade phases
Position is handed over to form a fin, point of a knife is located at the top of fin, and the tail end of fin extends to main connection sheet side, so by the
The wood chip that two blades are cut can be pushed open by fin toward secondary connection sheet side, will not be snapped into breach side and be caused saw chain normal
Work.
The main connection sheet, the hardness of secondary connection sheet are HRC47, the connection part, and connection part and main connection sheet, pair
The hardness of connection sheet connecting part is HRC43, and the anterior hardness of the cutting tip is HRC60, cutting tip rear portion hardness
For HRC52.
The cutting tip of the right cutter link, spacing head, huge linkage hole and the relatively left cutter link of small connecting hole are cut
Paring blade, spacing head, huge linkage hole and small connecting hole specular are set, and the mirror image face of the specular is and main connection
Piece, secondary connection sheet be parallel and equidistant plane.The main connection sheet, the saying of secondary connection sheet are only easy for describing part
Position relationship, without the major-minor on essential meaning point.
The rivet is made up of the manufactured head 51 of integrally connected successively, thick bar portion 52, thin rod part 53 and riveting end 55, thick bar
The one positioning shoulder 54 in portion and the formation of thin rod part connecting position；Rivet is penetrated from huge linkage hole, is passed from small connecting hole, the positioning
Shoulder is engaged with the positioning step portion of lasso, and thick bar portion, thin rod part are interference fitted with two socket parts of lasso inner circumferential respectively to be connected
Connect；The riveting end is formed after riveting first 550 by putting stone roller riveting, the recessed circle a of inwall correspondence of riveting head, recessed circle b position shape
Into the riveting ring 551 being engaged with recessed circle a, recessed circle b.
It is HRC29, riveting end other parts that the rivet, which is located at thin rod part and the periphery hardness of riveting end junction,
Hardness be HRC36, the hardness of the rivet other parts is HRC59.Thin rod part is hard with the periphery of riveting end crossover position
The relative other positions of degree are minimum, so after the shaping of riveting end riveting, the minimum region of the hardness be squeezed to be formed compared with
High density, and formed closely with small connecting hole with generation pretightning force is merged, it is not likely to produce loosening.
HRC described in text is the C scale of Rockwell hardness scale.
Embodiment 2
The difference of the present embodiment and embodiment 1 is the difference of connection chain link, and the connection chain link of the present embodiment is as shown in figure 15, arrow
Direction shown in head is that the distance between arc in the cut direction of saw chain, two connection sheets of the connection chain link is cut along saw chain
Cut direction to be gradually reduced, i.e., the difference apart from n, m and n apart from m less than arc postlaminar part of arc prelaminar part is in 0.5-1.0mm
Between, the cutting on such arc is also in the state of slight curvature, and cutting is being cut the score formed on material to two
Opposite extruding is produced between connection sheet, the vibrations between connection sheet and rivet can be so reduced, beneficial to making for extension saw chain
Use the life-span.
Above-described embodiment is only the preferably embodiment of the present invention, and in addition, the present invention can also have other realizations
Mode.It should be noted that on the premise of without departing from present inventive concept, any conspicuously improved and modification all should fall
Enter within protection scope of the present invention.
Claims (1)
1. a kind of felling saw, includes the casing of lateral opening, the cover plate of cabinet sides is connected to, internal side of shell is fixedly mounted on
Wall and the guide rail set along casing fore-and-aft direction, are slidably connected at the installing plate on guide rail, after being connected in installing plate and casing
Electric pushrod between portion, is fixedly connected on a mounting board and rotating shaft extend out to the motor of chassis sidewall；Also include being connected to machine
The guide plate of shell lateral wall, is connected to the sprocket wheel on bar nose and machine shaft, and the saw chain being connected between two sprocket wheels；
The bar hole set with guide rail parallel that power supply machine rotating shaft is passed is offered on the chassis sidewall；The casing rear end one
Body is connected with rear handle, and casing upper end is connected with up knob；Pulling force is also associated between the electric pushrod and installing plate
It is also equipped with installing close to the position of rear handle above control board and battery, the casing in sensor, the casing
Have above start stop switch, casing to be located in front of start stop switch and be also equipped with two elastic switches to adjust saw chain elasticity；
The pulling force sensor, battery, start stop switch and elastic switch are electrically connected with control board respectively；
The elastic switch includes one is pacifying the second of dismounting saw chain time control electric pushrod shortening by compressing switch with one
The first of control electric pushrod elongation is by compressing switch during dress saw chain；
Value of thrust during pulling force sensor detection felling saw idling conditions, control board is by value of thrust and pulling force setting value
After comparing, control the electric pushrod elongation or shorten, saw chain is maintained at tensioning state；The pulling force setting value is
45-55N；
The saw chain includes the connection chain link and cutter link by driving piece to be connected, the driving piece and connection chain link,
Rotated and connected by rivet respectively between cutter link, the cutter link includes the left cutter link set in turn and right cut is cut
Chain link；
Described connection chain link is by two connection sheets and is integrally attached in the middle of two connection sheet length directions between side
Connecting portion is constituted, and connection chain link is by a complete sheet metal punch forming；Two Dalian are offered in one connection sheet
Hole is connect, the position of two huge linkage holes of correspondence offers two small connecting holes, the hole of small connecting hole in another described connection sheet
Footpath is less than the aperture of huge linkage hole；Chamfering is formed between the inside and outside wall of the huge linkage hole, small connecting hole and connection sheet；
Periphery in the outside wall surface for the connection sheet for having opened up small connecting hole positioned at small connecting hole forms recessed circle a；Each company
Contact pin is different from the arc that the side of connecting portion is evagination, and the outer end of arc forms jagged cutting；
The hardness of the connection sheet is that HRC46, the connecting portion, and connecting portion and the hardness of connection sheet connecting part are
HRC42；
A lasso 56, two end faces of lasso are connected with the connection chain link between relative huge linkage hole and small connecting hole
It is upper to form the clamping flange collar being engaged with the chamfering position on huge linkage hole, small connecting hole, the periphery of lasso and driving respectively
Connecting hole on piece is rotatably assorted connection, has a positioning step portion in the middle of the inner circumferential of lasso, and lasso inner circumferential is located at positioning table
The both sides in rank portion are two different socket parts of aperture；
The hardness of the lasso periphery is HRC55, and the hardness of lasso inner circumferential is HRC40；
The left cutter link is including the main connection sheet on the left of cutting direction, the secondary connection sheet on the right side of cutting direction,
The connection part between side in the middle of main connection sheet and secondary connection sheet length direction is integrally attached to, is integrally attached in main connection sheet
Cutting tip away from connection part side, and be integrally attached in main connection sheet and the spacing head in front of cutting tip,
A breach is left between spacing head and cutting tip；The left cutter link is by a complete sheet metal punch forming；Institute
State and two huge linkage holes are offered in main connection sheet, the position of two huge linkage holes of correspondence offers two in the secondary connection sheet
Small connecting hole, the aperture of small connecting hole is less than the aperture of huge linkage hole；The huge linkage hole, small connecting hole and connection sheet it is inside and outside
Chamfering is formed between wall；Periphery in the outside wall surface of the secondary connection sheet positioned at small connecting hole forms recessed circle b；It is described
Also described lasso is connected with left cutter link between relative huge linkage hole, small connecting hole；
Described cutting tip is in integrally front wide and rear narrow taper cambered surface, and cutting tip is with main connection sheet connected component close to spacing
One end outward bending of head, the front end of cutting tip is formed close to the first blade of main connection sheet side and close to secondary connection sheet
Second blade of side, the first blade and the second blade joint form the point of a knife extended to cutting direction；The cutting tip
Machine-shaping has the first grinding to form first blade, the second blade respectively with cutting tip internal face crossover position for front end
Face and the second grinding surface；
The ratio between radius of periphery residing for first grinding surface and the second grinding surface is 4 ﹕ 5, periphery residing for the first grinding surface
Radius be 10mm；The axis p of circumference and left cut residing for first grinding surface form 42 degree between cutting zip length direction
Angle a, forms 47 degree of angle c between the axis of circumference and left cutter link width residing for first grinding surface；Institute
The axis q and left cut for stating circumference residing for the second grinding surface cut the angle b of 48 degree of formation between zip length direction, second mill
The angle d of 127 degree of formation between the axis of circumference residing for bevel and left cutter link width；
The point of a knife cuts relative with spacing head on zip length direction in left cut, and point of a knife and spacing head thickness direction intermediate point it
Between apart from t be 0.05mm；The distance between cutting tip front end outside wall surface and main connection sheet outer face s are 2mm；
The main connection sheet, the hardness of secondary connection sheet are that HRC47, the connection part, and connection part are connected with main connection sheet, pair
The hardness of piece connecting part is HRC43, and the anterior hardness of the cutting tip is HRC60, and cutting tip rear portion hardness is
HRC52；
The cutting tip of the right cutter link, spacing head, the bite of huge linkage hole and the relatively left cutter link of small connecting hole
Piece, spacing head, huge linkage hole and small connecting hole specular are set, and the mirror image face of the specular is and main connection sheet, pair
Connection sheet is parallel and equidistant plane；
The rivet is made up of the manufactured head of integrally connected successively, thick bar portion, thin rod part and riveting end, thick bar portion and thin rod part phase
Connect position and form a positioning shoulder；Rivet is penetrated from huge linkage hole, is passed from small connecting hole, the positioning of the positioning shoulder and lasso
Stage portion is engaged, and thick bar portion, thin rod part are connected with two socket parts interference fit of lasso inner circumferential respectively；The riveting end leads to
Overswing grinds riveting and formed after riveting head, and the recessed circle a of inwall correspondence of riveting head, recessed circle b position form and matched with recessed circle a, recessed circle b
The riveting ring of conjunction；
The periphery hardness that the rivet is located at thin rod part and riveting end junction is HRC29, riveting end other parts it is hard
Spend for HRC36, the hardness of the rivet other parts is HRC59；
Described HRC is the C scale of Rockwell hardness scale；
The distance between arc in two connection sheets of the connection chain link is gradually reduced along saw chain cut direction, arc
Anterior is less than the difference apart from n, m and n of arc postlaminar part between 0.5-1.0mm apart from m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710781460.6A CN107322695A (en) | 2016-07-06 | 2016-07-06 | A kind of felling saw |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710781460.6A CN107322695A (en) | 2016-07-06 | 2016-07-06 | A kind of felling saw |
| CN201610538691.XA CN105946061B (en) | 2016-07-06 | 2016-07-06 | A kind of felling saw |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610538691.XA Division CN105946061B (en) | 2016-07-06 | 2016-07-06 | A kind of felling saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107322695A true CN107322695A (en) | 2017-11-07 |
Family
ID=56901354
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710781460.6A Withdrawn CN107322695A (en) | 2016-07-06 | 2016-07-06 | A kind of felling saw |
| 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 |
| CN201710962896.5A Pending CN107756539A (en) | 2016-07-06 | 2016-07-06 | A kind of electronic felling saw with control board |
Family Applications After (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
| CN201710962896.5A Pending CN107756539A (en) | 2016-07-06 | 2016-07-06 | A kind of electronic felling saw with control board |
Country Status (1)
| Country | Link |
|---|---|
| CN (5) | CN107322695A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114851302A (en) * | 2021-02-03 | 2022-08-05 | 创科无线普通合伙 | Chain saw |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106973710B (en) * | 2017-05-09 | 2021-01-19 | 苏州衡创信息科技有限公司 | Branch cleaning device of felling machine |
| 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 |
| 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 |
| 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 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4316327A (en) * | 1979-02-26 | 1982-02-23 | Omark Industries, Inc. | Chain saw |
| CN2312797Y (en) * | 1997-08-08 | 1999-04-07 | 朱永琪 | Saw chain |
| SE0200219L (en) * | 2002-01-28 | 2003-07-29 | Electrolux Abp | Chain tensioner at chainsaw |
| DE102006037330B4 (en) * | 2006-08-10 | 2020-10-29 | Andreas Stihl Ag & Co. Kg | Link for a saw chain and saw chain |
| US8932114B2 (en) * | 2009-06-25 | 2015-01-13 | Blount, Inc. | Chain link sharpening method and apparatus |
| JP2013208805A (en) * | 2012-03-30 | 2013-10-10 | Hitachi Koki Co Ltd | Chain saw |
| CN103009438B (en) * | 2012-12-05 | 2015-07-15 | 南京德朔实业有限公司 | Chain saw |
| BR112015024908A2 (en) * | 2013-03-27 | 2017-07-18 | Husqvarna Ab | chain saw |
| 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 |
| 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 |
-
2016
- 2016-07-06 CN CN201710781460.6A patent/CN107322695A/en not_active Withdrawn
- 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 CN201710962896.5A patent/CN107756539A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114851302A (en) * | 2021-02-03 | 2022-08-05 | 创科无线普通合伙 | Chain saw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107756539A (en) | 2018-03-06 |
| CN105946061B (en) | 2017-11-24 |
| CN107322696A (en) | 2017-11-07 |
| CN105946061A (en) | 2016-09-21 |
| CN107825527A (en) | 2018-03-23 |
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Application publication date: 20171107 |
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