CN205572618U - Chain saw chain straining device - Google Patents
Chain saw chain straining device Download PDFInfo
- Publication number
- CN205572618U CN205572618U CN201620423601.8U CN201620423601U CN205572618U CN 205572618 U CN205572618 U CN 205572618U CN 201620423601 U CN201620423601 U CN 201620423601U CN 205572618 U CN205572618 U CN 205572618U
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- CN
- China
- Prior art keywords
- chain saw
- chain
- lever
- guide plate
- saw guide
- Prior art date
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Abstract
The utility model provides a chain saw chain straining device, it includes casing, chain saw guide, adjusting bolt and lever, is equipped with driving sprocket in the casing, and chain saw guide cunning is joined in marriage on the casing, and the slip direction of chain saw guide is perpendicular and intersect in driving sprocket's axis, and adjusting bolt threaded connection is in on the casing, and adjusting bolt's axis with have the contained angle between the slip direction of chain saw guide, the lever is installed with rotating in the casing, the head of lever is connected with adjusting bolt, and the afterbody and the chain saw guide of lever are connected, and when just screwing adjusting bolt, the lever promotes the chain saw guide is towards keeping away from driving sprocket's a lateral movement. Simultaneously the utility model provides an assembly method of chain saw. The utility model discloses chain saw chain straining device, simple structure is compact, convenient operation, rise tight effect and good reliability, difficult pine takes off, has improved the security greatly.
Description
Technical field
The present invention relates to a kind of chain saw, particularly to a kind of chain saw chain strainer.
Background technology
Chain saw is that a kind of chain utilizing band blade drives chain high-speed rotary to transfer cutting timber by power
Or the garden tool set of branch.If chain is not by tensioning suitably, mistake pine may jump out of guide plate and cause
Injury to operator, the chain of tension may be due to the excessive friction between chain and guide plate
Cause high temperature fault.The most during use, due to the abrasion of chain, the tension force of chain has the biggest
Change, use after a period of time, the length of chain is gradually increased, and its rate of tension then reduces.
At present, existing known chain tension method is probably divided into two big classes, and a class is to need to use one
Part or the specific purpose tool of more than, direct or indirect turn adjusting screw rod and anchorage clip jack panel, this
Planting structure needs user to carry with regulation instrument, in-convenience in use；Another kind of is can be not required to borrow
Assistant engineer has, and the handle that directly can be rotated by hand by regulation or knob drive a series of adjustment structures
Realize the tensioning of chain and the fixing of guide plate respectively.Above-mentioned two class methods, the tensioning degree of chain is intended to
Experience by operator, it is difficult to control.And need to regulate in order the rate of tension of chain saw and guide plate
Tautness, as occurred regulation not in place, needs the most repeatedly to regulate, operation inconvenience.In prior art,
Generally use with lower regulating mechanism:
Include chain pulley seat, cover plate, sprocket wheel, guide plate, chain, adjusting knob, rack member, regulation
Gear, adjusting knob spacing on the cover board and can opposing cover plates rotate, regulation gear be fixed on regulation rotation
The bottom of button, with a lock that can compress adjusting knob after screw bolt passes regulation gear and adjusting knob
Tight knob thread connects, and adjusting knob upper surface has a recess, and recess lower surface has one for bolt
The hole passed, locking knob bottom be contained in recess and can the rotation of relative accommodation knob, bolt passes
Kong Houyu locking knob on recess is threaded, and locking knob bottom is fixed with a locking inserts, lock
Having the tapped through hole threaded with bolt top on tight inserts, the bottom of locking inserts protrudes from lock
Tight knob lower surface, in the bottom of locking inserts enters the hole of recess and can connect with regulating gear upper surface
Touch；During regulation, need first rotational lock knob, then rotation of adjustment knob, then reversely rotate locking rotating
Button, operation is excessively complicated, and often repeatedly need to regulate between two knobs, need to check description or specially
Industry personage just can complete locking under instructing, and easily causes due to misoperation saw chain to relax, damages chain
Saw even endangers personal safety.
Summary of the invention
[1] to solve the technical problem that
The technical problem to be solved in the present invention is to provide a kind of compact conformation, simple to operate, regulating effect
Good and safe and reliable chain saw chain strainer and the assembly method of the chain saw with this mechanism.
[2] technical scheme of problem is solved
The present invention provides a kind of chain saw chain strainer, and it includes housing 1, chain saw guide plate 2, regulation
Bolt 3 and lever 4, be provided with drive sprocket 101 in described housing, described chain saw guide plate 2 is sliding fits over institute
State on housing 1, and the glide direction of described chain saw guide plate is vertical and intersects at the axle of described drive sprocket
Line, described regulation bolt 3 is threaded on described housing 1, and the axis of described regulation bolt with
There are angle between the glide direction of described chain saw guide plate, described lever 4 is rotatably mounted at described
In housing 1, the head of described lever is connected with described regulation bolt, and the afterbody of described lever is with described
Chain saw guide plate connects, and when screwing described regulation bolt, described in described lever pushing, chain saw guide plate is towards far
A lateral movement from described drive sprocket.
Further, two projections 102 are set in described housing 1 and consolidating between projection described in two
Determine bolt 9, described chain saw guide plate 2 offers to hold the bar shaped that described projection and fixing bolt be inserted in sliding
Groove 201, described fixing bolt is provided with the tightening cover 8 for fixing described chain saw guide plate.
Further, the head of described lever is fixed with pressing plate 401, and described pressing plate is parallel to described thick stick
The pivot center of bar, described pressing plate offers bar-shaped trough 4011, and the length direction of described bar-shaped trough hangs down
Directly in the pivot center of described lever, described regulation bolt is through described bar-shaped trough and can promote described thick stick
Bar rotates.
Further, described regulation bolt is provided with the limited block for axial limiting or limiting plate.
Further, the end of described regulation bolt is provided with the body of rod that can be inserted in described bar-shaped trough, described
The shaft shoulder for axial limiting is formed between the threaded body of the body of rod and described regulation bolt.
Further, described chain saw guide plate 2 offering push hole 202, the afterbody of described lever is provided with
It is parallel to the pivot center of described lever and the push rod 402 of described push hole can be inserted in.
Further, it is provided with installation room 103 in described housing 1, in described installation room, is fixed with nut
104, the cooperation of described regulation bolt is arranged on described nut, and the head of described regulation bolt extends to institute
Stating outside housing and be connected with an adjusting knob 31, described lever is rotatably mounted at described by bearing pin
In installation room, the opening end of described installation room is fixed with cover plate 5 by screw.
Further, the outer plate 6 that can cover described cover plate, described chain saw it are provided with in described housing 1
Guide plate 2 is sliding to be fitted on described outer plate.
Further, the axis of described regulation bolt is perpendicular to the glide direction of described chain saw guide plate.
[3] beneficial effect
Chain saw chain strainer of the present invention, simple and compact for structure, easy to operate, need not adjust repeatedly
Whole locking knob and adjusting knob, it is not necessary to professional person instructs can realize tensioner；And without special tool
Tool, substantially increases installation effectiveness；And tensioner effect and good reliability, it is difficult to get loose, is greatly improved
Safety.
Accompanying drawing explanation
Fig. 1 is the structural representation of chain saw chain strainer of the present invention；
Fig. 2 is the explosive view of chain saw chain strainer of the present invention；
Fig. 3 is the scheme of installation of chain saw chain strainer of the present invention；
Fig. 4 is the cut-away view of chain saw chain strainer of the present invention；
Fig. 5 is the structural representation of the lever of chain saw chain strainer of the present invention；
Fig. 6 is the structural representation of the outer plate of chain saw chain strainer of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the embodiment of the present invention is discussed in detail.
Refering to Fig. 1 to Fig. 6, the present invention provides a kind of chain saw chain strainer, it include housing 1,
Chain saw guide plate 2, regulation bolt 3 and lever 4, be provided with by motor-driven drive sprocket in housing
101, chain saw guide plate 2 is sliding to be fitted on housing 1, and one end is positioned at hull outside, the slip of chain saw guide plate
Direction is vertical and intersects at the axis of drive sprocket, and the sidewall of this chain saw guide plate is provided with groove, this groove
For installing saw chain, regulation bolt 3 is threaded on housing 1, and the head at regulation bolt is provided with
Adjusting knob, convenient manually regulation, it is not necessary to specific purpose tool regulates, the axis of regulation bolt is led with chain saw
There are angle between the glide direction of plate, in the present embodiment, the axis of regulation bolt is perpendicular to chain saw
The glide direction of guide plate, i.e. chain saw guide plate are towards the front end of housing, and regulate bolt and be positioned at the top of housing
Portion or bottom, space is big, convenient regulation；Lever 4 is rotatably mounted in housing 1, the head of lever
Portion is connected with regulation bolt, and the afterbody of lever is connected with chain saw guide plate, and when screwing regulation bolt,
Lever pushing chain saw guide plate is towards the lateral movement away from drive sprocket, thus realizes tensioner.
Concrete, in housing 1, set two projections 102 and the fixing bolt 9 between two projections,
Two projections may be used without strip bulge and replace, and it serves as a slide rail, limit the slip side of chain saw guide plate
Just, correspondingly, offer in chain saw guide plate 2 rear end and hold the bar shaped chute that projection and fixing bolt are inserted in
201, strip groove is inserted between two projections, can realize chain saw guide plate sliding, sets on fixing bolt
Having the tightening cover 8 for fixing chain saw guide plate, it is for real to chain saw guide plate after saw chain completes tensioner
Now it is fixed；Head at lever is fixed with pressing plate 401, and this pressing plate is parallel to the rotary shaft of lever
Line, offers bar-shaped trough 4011 on pressing plate simultaneously, and the length direction of this bar-shaped trough is perpendicular to lever
Pivot center, through bar-shaped trough and can promote lever rotation at regulation bolt simultaneously；When needed,
Regulation bolt lower end is inserted in bar-shaped trough, plays positioning action, prevents from slipping, simultaneously at regulation bolt
On position-limit mechanism axially give one power of pressing plate, when regulate bolt tighten time, this position-limit mechanism drive thick stick
Bar rotates.
Above-mentioned for axial limiting and promote the mechanism of lever rotation to include following two；
Embodiment one: regulation bolt is provided with the limited block for axial limiting or limiting plate, and this is spacing
Block or limiting plate are the most circular, and limited block or limiting plate can not realize moving axially on regulation bolt,
Its diameter, therefore can be with the upper surface of pressing plate more than the width of bar-shaped trough.
Embodiment two, it is provided with in the end of regulation bolt and can be inserted in the body of rod of bar-shaped trough, the body of rod and regulation
The shaft shoulder for axial limiting, the i.e. diameter of the body of rod is formed less than bar-shaped trough between the threaded body of bolt
Width, and regulate the diameter width more than bar-shaped trough of the threaded body of bolt lower end, therefore threaded body is not
Can be inserted in bar-shaped trough, between the cylinder that two diameters are different, form the shaft shoulder, during use, this shaft shoulder
With pressing plate upper surface.
Chain saw guide plate 2 offers push hole 202, it is preferred that push hole is two and is symmetricly set on
Bar shaped chute both sides, it can facilitate the installation of chain saw guide plate, i.e. chain saw guide plate tow sides all can install；
Afterbody at lever is provided with the pivot center being parallel to lever and the push rod 402 that can be inserted in push hole；This
In embodiment, the pressing plate on lever and push rod all one bending and moldings.
It is provided with installation room 103 in housing 1, in this installation room, is fixed with nut 104, concrete,
Being provided with a nut mounting groove in installation room, this nut mounting groove can limit moving axially and radial direction of nut
Rotating, nut 104 is removably set in this nut mounting groove, and regulation bolt cooperation is arranged on spiral shell
On mother, the head of regulation bolt extends to outside housing and is connected with an adjusting knob 31, and this regulation is revolved
Button can manually regulate, it is not necessary to specific purpose tool；Lever is rotatably mounted in installation room by bearing pin,
Opening end at installation room is fixed with cover plate 5 by screw.
Being provided with the outer plate 6 that can cover cover plate in housing 1, projection 102 is positioned on this outer plate,
Chain saw guide plate 2 is sliding to be fitted on outer plate；In the present embodiment, this projection by outer plate punch forming, for
Raising reliability and service life, outer plate is made of metal；For the ease of installing, at cover plate and
Housing is provided with detent, and outer plate is arranged in this detent and is fixed by screw, at shell
Body is provided with the gland 7 that can cover this tension mechanism.
Present invention also offers the assembly method of a kind of chain saw, this chain saw includes above-mentioned chain saw chain simultaneously
Strainer and can cover the gland 7 of chain saw chain strainer, this assembly method includes following
Step:
A, being rotatably mounted in the installation room of housing 1 by bearing pin by lever, adjustment lever also makes
Push rod on lever is close proximity to drive sprocket；
B, the regulation bolt thread with adjusting knob is connected on the nut of installation room, and makes tune
In the bar-shaped trough of the pressing plate that the lower end of joint bolt is sheathed with lever, to realize between regulation bolt and lever
Location and installation；
C, cover plate is fixed to installation room opening end by screw；
D, outer plate 6 is fixed to cover plate upper surface by screw；
E, saw chain is sheathed with in the chute of chain saw guide plate sidewall；
F, on the other hand radial direction hold unsupported saw chain, clamp the saw chain installed to chain saw guide plate on the other hand
(in order to avoid saw chain departs from from chain saw guide plate), entirety moves down and makes two projections to be inserted in the bar to chain saw guide plate
In shape chute, and guarantee that the push rod on lever is inserted in the push hole of chain saw guide plate 2, now housing 1
On fixing bolt be also set in bar shaped chute, thus complete between chain saw guide plate and lever, housing
Location and installation；
G, promotion chain saw guide plate, towards drive sprocket one side shifting, facilitate between saw chain and drive sprocket
Connect, and by the saw chain set of residue section to drive sprocket, sheathed for compressing chain on fixing bolt
The sleeve pipe 10 of saw guide；
H, cover gland, tightening cover be threaded io on fixing bolt and do not lock, this tightening cover
Gland can be limited move, be simultaneously used for compressing chain saw guide plate；
I, screwing regulation bolt, activation lever rotates, thus promotes chain saw guide plate towards away from drive sprocket
A lateral movement, it is achieved saw chain tensioner；
J, screw tightening cover, thus stationary gland, and making sleeve pipe compress chain saw guide plate, assembling completes.
Above-mentioned steps H and step I can be exchanged.
Chain saw chain strainer of the present invention, simple and compact for structure, easy to operate, need not adjust repeatedly
Whole locking knob and adjusting knob, it is not necessary to professional person instructs can realize tensioner；And without special tool
Tool, substantially increases installation effectiveness；And tensioner effect and good reliability, it is difficult to get loose, is greatly improved
Safety.
The above is only the preferred embodiment of the present invention, it is noted that for the art
For those of ordinary skill, on the premise of without departing from the technology of the present invention principle, it is also possible to make some
Improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (9)
- null1. a chain saw chain strainer，It is characterized in that: include housing (1)、Chain saw guide plate (2)、Regulation bolt (3) and lever (4)，Drive sprocket (101) it is provided with in described housing，Described chain saw guide plate (2) is sliding to be fitted on described housing (1)，And the glide direction of described chain saw guide plate is vertical and intersects at the axis of described drive sprocket，Described regulation bolt (3) is threaded on described housing (1)，And there are angle between axis and the glide direction of described chain saw guide plate of described regulation bolt，Described lever (4) is rotatably mounted in described housing (1)，The head of described lever is connected with described regulation bolt，The afterbody of described lever is connected with described chain saw guide plate，And when screwing described regulation bolt，Chain saw guide plate described in described lever pushing is towards the lateral movement away from described drive sprocket.
- 2. chain saw chain strainer as claimed in claim 1, it is characterized in that: be provided with two projections (102) in described housing (1) and at fixing bolt (9) between projection described in two, offering on described chain saw guide plate (2) and hold the bar shaped chute (201) that described projection and described fixing bolt are inserted in, described fixing bolt is provided with the tightening cover (8) for fixing described chain saw guide plate.
- 3. chain saw chain strainer as claimed in claim 1, it is characterized in that: the head of described lever is fixed with pressing plate (401), described pressing plate is parallel to the pivot center of described lever, bar-shaped trough (4011) is offered on described pressing plate, the length direction of described bar-shaped trough is perpendicular to the pivot center of described lever, and described regulation bolt is through described bar-shaped trough and can promote described lever rotation.
- 4. chain saw chain strainer as claimed in claim 3, it is characterised in that: described regulation bolt is provided with the limited block for axial limiting or limiting plate.
- 5. chain saw chain strainer as claimed in claim 3, it is characterised in that: the end of described regulation bolt is provided with the body of rod that can be inserted in described bar-shaped trough, forms the shaft shoulder for axial limiting between the threaded body of the described body of rod and described regulation bolt.
- 6. chain saw chain strainer as claimed in claim 1, it is characterized in that: offer push hole (202) on described chain saw guide plate (2), the afterbody of described lever is provided with the pivot center being parallel to described lever and the push rod (402) that can be inserted in described push hole.
- 7. chain saw chain strainer as claimed in claim 1, it is characterized in that: in described housing (1), be provided with installation room (103), nut (104) it is fixed with in described installation room, the cooperation of described regulation bolt is arranged on described nut, the head of described regulation bolt extends to outside described housing and is connected with an adjusting knob (31), described lever is rotatably mounted in described installation room by bearing pin, and the opening end of described installation room is fixed with cover plate (5) by screw.
- 8. chain saw chain strainer as claimed in claim 7, it is characterised in that: being provided with the outer plate (6) that can cover described cover plate in described housing (1), described chain saw guide plate (2) is sliding to be fitted on described outer plate.
- 9. chain saw chain strainer as claimed in claim 1, it is characterised in that: the axis of described regulation bolt is perpendicular to the glide direction of described chain saw guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620423601.8U CN205572618U (en) | 2016-05-11 | 2016-05-11 | Chain saw chain straining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620423601.8U CN205572618U (en) | 2016-05-11 | 2016-05-11 | Chain saw chain straining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205572618U true CN205572618U (en) | 2016-09-14 |
Family
ID=56857463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620423601.8U Expired - Fee Related CN205572618U (en) | 2016-05-11 | 2016-05-11 | Chain saw chain straining device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205572618U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798993A (en) * | 2016-05-11 | 2016-07-27 | 宁波爱乐吉电动工具股份有限公司 | Chain tensioning mechanism of chain saw and assembly method of chain saw with such mechanism |
| US11472058B2 (en) | 2019-11-25 | 2022-10-18 | Milwaukee Electric Tool Corporation | Powered handheld cutting tool |
| CN117245738A (en) * | 2023-09-15 | 2023-12-19 | 金华锋创科技有限公司 | Tensioning mechanism and chain saw |
-
2016
- 2016-05-11 CN CN201620423601.8U patent/CN205572618U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798993A (en) * | 2016-05-11 | 2016-07-27 | 宁波爱乐吉电动工具股份有限公司 | Chain tensioning mechanism of chain saw and assembly method of chain saw with such mechanism |
| CN105798993B (en) * | 2016-05-11 | 2024-04-19 | 宁波爱乐吉电动工具股份有限公司 | Chain tensioning mechanism of chain saw and assembly method of chain saw with chain tensioning mechanism |
| US11472058B2 (en) | 2019-11-25 | 2022-10-18 | Milwaukee Electric Tool Corporation | Powered handheld cutting tool |
| US11872718B2 (en) | 2019-11-25 | 2024-01-16 | Milwaukee Electric Tool Corporation | Powered handheld cutting tool |
| CN117245738A (en) * | 2023-09-15 | 2023-12-19 | 金华锋创科技有限公司 | Tensioning mechanism and chain saw |
| CN117245738B (en) * | 2023-09-15 | 2024-04-19 | 金华锋创科技有限公司 | Tensioning mechanism and chain saw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 Termination date: 20190511 |