CN201446587U - Chain saw chain tensile force adjusting device - Google Patents
Chain saw chain tensile force adjusting device Download PDFInfo
- Publication number
- CN201446587U CN201446587U CN2009200394559U CN200920039455U CN201446587U CN 201446587 U CN201446587 U CN 201446587U CN 2009200394559 U CN2009200394559 U CN 2009200394559U CN 200920039455 U CN200920039455 U CN 200920039455U CN 201446587 U CN201446587 U CN 201446587U
- Authority
- CN
- China
- Prior art keywords
- chain
- chain saw
- handwheel
- bevel gear
- tensile force
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a chain saw chain tensile force adjusting device which comprises a shell (3) and a chain plate (7) provided with a chain saw chain, and is characterized in that the chain saw shell (3) is internally provided with a transverse bevel gear (12) and a longitudinal bevel gear (13) which are meshed and connected with each other; the longitudinal bevel gear (13) is connected with one end of a tensioning rod (10) by an internal round screw hole, and the other end of the tensioning rod (10) is connected with the chain plate (7); and the transverse bevel gear (12) is positioned on a tensioning hand wheel (4), and the outer side of the chain plate (7) is provided with a clamping hand wheel (5). The device has simple and practical structure, is convenient for adjusting the chain tensile force and ensures the chain saw chain not to be easily loose when in use.
Description
Technical field
The utility model relates to a kind of chain saw, specifically a kind of device of regulating the chain saw chain tensile force.
Background technology
Chain saw is the electric tool that a kind of people use always, is used for cutting timber more.Chain saw is after using a period of time, and timber makes carrier bar, sprocket wheel be worn to the reaction force of chain saw chain during owing to cutting, and chain occurs because of the elongated situation of wearing and tearing, and just need adjust the tensile force of chain saw chain this moment.But existing market does not also have a kind of structure that can regulate the chain saw chain tensile force easily.
Summary of the invention
The purpose of this utility model then is the above-mentioned deficiency at present prior art, and a kind of chain saw chain tensile force adjusting device simple and practical, easy to adjust is provided.
The technical solution adopted in the utility model is as follows:
A kind of chain saw chain tensile force adjusting device, comprise chain saw housing and the carrier bar that chain saw chain is housed, it is characterized in that in the chain saw housing, being equipped with the horizontal bevel gear and the vertical bevel gear that are connected with a joggle, vertically bevel gear connects an end of nutted rod by round thread hole in it, the other end of nutted rod connects carrier bar, laterally bevel gear is installed on the tensioning handwheel, in the outside of carrier bar the clamping handwheel is installed.
Described tensioning handwheel and clamping handwheel all are positioned at the chain wheel cover outside that is installed on the chain saw housing, and chain wheel cover is provided with the tensioning handwheel and clamps the installing hole of handwheel.
Described clamping handwheel and the screw engages that is fixed on the chain saw housing, and on the screw rod that clamps between handwheel and the chain saw housing, packing ring is installed.
Described tensioning handwheel is connected and fixed by jump ring and horizontal bevel gear.
The utility model is simple and practical, and chain tension is easy to adjust, and it is loose that chain saw chain is difficult in use.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the C-C face cutaway view of Fig. 1.
Fig. 3 is the A-A face cutaway view of Fig. 1.
Fig. 4 is the B-B face cutaway view of Fig. 1.
Fig. 5 is the side view that the utility model removes chain wheel cover post-tensioning device zone.
Fig. 6 is the structural representation of the utility model bevel gear combination.
The specific embodiment
The utility model is further described below in conjunction with accompanying drawing:
Shown in Fig. 1-6, the utility model has shown a piece housing 3 of chain saw 1, the workpiece of chain saw 1 is installed in the housing 3. and what stretched out housing 3 front portions is carrier bar 7, chain saw chain is installed in the surrounding edge rotation of carrier bar 7. and the switch 2. that the power line that connects power supply is installed at the rear portion of housing 3 and is used for connecting the chain saw motor power is installed horizontal bevel gear 12 and vertical bevel gear 13 of pair of meshing housing 3 in, they are vertical mutually. and vertically the internal thread of circle is connected with nutted rod 10 1 ends in the bevel gear 13, screw connection structure by circle in vertical bevel gear 13, can be when vertically bevel gear 13 vertically rotates, realizing driving nutted rod 10 laterally moves around. and the other end of nutted rod 10 is provided with projection 14, this projection is in succession on carrier bar 7 in the corresponding hole, nutted rod 10 is horizontal to be driven carrier bar 7 when mobile and moves, thereby the chain saw chain tensile force that is installed on the carrier bar 7 is changed, reaches the purpose of regulating the chain saw chain tensile force.
The utility model is equipped with chain wheel cover 6 in a side of housing 3, and its outside is installed and to be used for installation tensioner, and chain wheel cover 6 is provided with the installing hole of tensioning apparatus.Described tensioning apparatus includes tensioning handwheel 4 and clamps handwheel 5, and tensioning handwheel 4 is connected and fixed by jump ring 8 and horizontal bevel gear 12.In actual use, also chain wheel cover 6 can be arranged to the top that removable formula also can be positioned at tensioning handwheel 4.Appropriate holes and gap make tensioning handwheel 4 rotating operation easily in the chain wheel cover 6.Clamp handwheel 5 and screw rod 9 engagements that are fixed on the housing 3, and packing ring 11 is installed on the screw rod 9 that clamps between handwheel 5 and the chain saw housing 3.Rotate to clamp handwheel 5 backs and apply clamping force to carrier bar 7, make carrier bar 7 lean against appropriate location on the anchor slab 16, thereby, prevent that carrier bar 7 from moving with respect to the position of housing 3 fixed-site of carrier bar 7 by packing ring 11.
The utility model sprocket wheel 15 is below a side of housing 3 is arranged on chain wheel cover 6, and saw chain is engaged on the sprocket wheel 15, sprocket wheel 15 by transmission device by the motor-driven of inside, thereby chain drive-belt is around carrier bar 7 revolutions.
Distance between the utility model sprocket wheel 15 and the carrier bar 7 can be by the change that vertically moves of nutted rod 10, thereby saw chain is done suitable adjustment.Tensioning handwheel 4 rotates with the form that can brake under controllable situation, up to the saw chain tension force that reaches expectation, clamps with clamping handwheel 5 then.This tensioning apparatus when chain saw vertically is pushed into the timber of cutting, produces a propulsive thrust longitudinally on carrier bar in the chain saw operation is used, but this power part customer service clamping force, and towards the direction of drive sprocket carrier bar is pushed back, make that the tension force on the chain saw chain reduces.The latching characteristics of internal thread has prevented the counter-rotating of vertical bevel gear 13 on screw thread on the nutted rod 10 and the vertical bevel gear 13, thereby has prevented the loose of saw chain tension force.
Other undeclared part that the utility model relates to is same as the prior art.
Claims (4)
1. chain saw chain tensile force adjusting device, comprise housing (3) and the carrier bar (7) of chain saw chain is housed, it is characterized in that in chain saw housing (3), being equipped with the horizontal bevel gear (12) and the vertical bevel gear (13) that are connected with a joggle, vertically bevel gear (13) connects an end of nutted rod (10) by round thread hole in it, the other end of nutted rod (10) connects carrier bar (7), laterally bevel gear (12) is installed on the tensioning handwheel (4), is equipped with in the outside of carrier bar (7) to clamp handwheel (5).
2. chain saw chain tensile force adjusting device according to claim 1, it is characterized in that described tensioning handwheel (4) and clamp handwheel (5) all being positioned at chain wheel cover (6) outside that is installed on the chain saw housing (3), chain wheel cover (6) is provided with tensioning handwheel (4) and clamps the installing hole of handwheel (5).
3. chain saw chain tensile force adjusting device according to claim 1 and 2, it is characterized in that described clamping handwheel (5) and screw rod (9) engagement that is fixed on the chain saw housing (3), and go up installation packing ring (11) at the screw rod (9) that clamps between handwheel (5) and the chain saw housing (3).
4. chain saw chain tensile force adjusting device according to claim 1 and 2 is characterized in that described tensioning handwheel (4) is connected and fixed by jump ring (8) and horizontal bevel gear (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200394559U CN201446587U (en) | 2009-04-14 | 2009-04-14 | Chain saw chain tensile force adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200394559U CN201446587U (en) | 2009-04-14 | 2009-04-14 | Chain saw chain tensile force adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201446587U true CN201446587U (en) | 2010-05-05 |
Family
ID=42551298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200394559U Expired - Fee Related CN201446587U (en) | 2009-04-14 | 2009-04-14 | Chain saw chain tensile force adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201446587U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070563A (en) * | 2013-03-29 | 2014-10-01 | 株式会社牧田 | Chain tension adjusting apparatus for chain saw |
| CN104114340A (en) * | 2012-03-14 | 2014-10-22 | 日立工机株式会社 | Chain saw with saw chain tensioning device |
| CN105459213A (en) * | 2016-01-13 | 2016-04-06 | 大连丰和金瑞设备制造有限公司 | Numerically controlled all-specification continuous cutting machine |
-
2009
- 2009-04-14 CN CN2009200394559U patent/CN201446587U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104114340A (en) * | 2012-03-14 | 2014-10-22 | 日立工机株式会社 | Chain saw with saw chain tensioning device |
| CN104114340B (en) * | 2012-03-14 | 2016-08-24 | 日立工机株式会社 | Chain saw |
| CN104070563A (en) * | 2013-03-29 | 2014-10-01 | 株式会社牧田 | Chain tension adjusting apparatus for chain saw |
| CN105459213A (en) * | 2016-01-13 | 2016-04-06 | 大连丰和金瑞设备制造有限公司 | Numerically controlled all-specification continuous cutting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20140414 |