CN211398349U - Chain saw chain wheel fixing device - Google Patents
Chain saw chain wheel fixing device Download PDFInfo
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- CN211398349U CN211398349U CN201922292579.4U CN201922292579U CN211398349U CN 211398349 U CN211398349 U CN 211398349U CN 201922292579 U CN201922292579 U CN 201922292579U CN 211398349 U CN211398349 U CN 211398349U
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- clutch
- gasket
- chain wheel
- diameter
- clutch disc
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Abstract
The utility model discloses a fixing device of chain saw chain wheel, which comprises a circular clutch, wherein a circular clutch disc is arranged at the front side of the clutch, the diameter of the clutch disc is larger than that of the clutch and is sleeved on the clutch, a circular first gasket is arranged between the clutch disc and the clutch, the diameter of the first gasket is smaller than that of the clutch, a needle bearing is arranged between the first gasket and the clutch disc, the needle bearing is positioned in the clutch disc, an annular chain wheel is sleeved at the front side of the clutch disc, a second gasket is arranged at the outer side of the chain wheel, a nut is arranged at the front side of the second gasket, the diameter of the second gasket is smaller than that of the first gasket, the clutch disc, the first gasket, the bearing, the chain wheel, the second gasket and the nut are coaxially arranged, so that the chain wheel can be replaced under the condition that the clutch is not disassembled, the operation process is more convenient and simpler.
Description
Technical Field
The utility model relates to a garden instrument, in particular to chain saw sprocket's fixing device.
Background
At present, in the daily maintenance of chain saw, the change of the chain wheel can not be left, the structure of the chain wheel in the prior art is often at the inner side of the clutch disc, but the arrangement mode has the defects that in the daily maintenance of the chain saw, a user does not have a special tool for disassembling and assembling the clutch and can not maintain at home.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the embodiment of the utility model provides a chain saw sprocket's fixing device.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the embodiment of the utility model provides a fixing device of chain saw sprocket, including circular shape clutch, the front side of clutch is provided with circular shape separation and reunion dish, the diameter of separation and reunion dish is greater than the diameter and the cover of clutch and establishes on the clutch, be provided with circular shape first gasket between separation and reunion dish and the clutch, the diameter of first gasket is less than the diameter of clutch, be provided with bearing between first gasket and the separation and reunion dish, bearing is located the separation and reunion dish, the front side cover of separation and reunion dish is equipped with annular sprocket, the sprocket outside pad is equipped with the second gasket, the front side of second gasket is provided with the nut, the diameter of second gasket is less than the diameter of first gasket, the clutch, the separation and reunion dish, first gasket, bearing, the sprocket, second gasket and the coaxial setting of nut.
In the use, with the clutch design at chain saw right crank's interlude, and establish on right crank through the clutch cover, the third gasket pad is established between clutch and chain saw, can support the hoof piece of clutch, first gasket reduces the friction between clutch dish and the clutch as antifriction pad, detain the clutch dish on the clutch, clutch dish cover is established on the clutch promptly, and the sprocket is installed at the front side of clutch dish, consequently under the condition of not dismantling the clutch, can make things convenient for the change of sprocket, the second gasket can restrict the ascending displacement of sprocket fore-and-aft direction simultaneously, prevent the sprocket departure, make the working process of sprocket more stable.
As a preferred implementation mode, the rear side pad of the clutch is provided with a third gasket, the diameter of the third gasket is smaller than that of the clutch, the diameter of the third gasket is larger than that of the first gasket, and the third gasket pad is arranged between the clutch and the chain saw and can support a shoe block of the clutch, so that the clutch is more stable.
In a preferred embodiment, an annular bulge is fixedly arranged at the center of the front side of the clutch disc, the chain wheel is sleeved on the bulge, and the needle bearing is positioned on the inner side of the bulge, so that the clutch disc is connected with the right crank of the chain saw more tightly.
As a preferred embodiment, the diameter of the second spacer is larger than the diameter of the protrusion and smaller than the diameter of the sprocket, and the second spacer can limit the displacement of the sprocket in the front-rear direction, thereby preventing the sprocket from flying out.
As a preferred embodiment, a plurality of uniformly distributed bulges are integrally arranged on the periphery of the bulge, a plurality of recesses corresponding to the bulges are arranged on the inner surface of the chain wheel, the bulges are inserted into the recesses, and the contact area between the chain wheel and the clutch disc is increased through the matching between the bulges and the recesses, so that the chain wheel can be more firmly installed.
As a preferred embodiment, the outer side of the protrusion is chamfered, and the inner side of the recess is arranged at right angle, so that the contact between the protrusion and the recess can be increased, and the connection between the chain wheel and the clutch disc is firmer.
In a preferred embodiment, two adjacent protrusions are spaced apart from each other to prevent the sprocket from rotating on the protrusions.
As a preferred embodiment, the thickness of the sprocket is lower than the height of the protrusions, so that the fit between the sprocket and the protrusions is better.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the sprocket and second shim of FIG. 1;
FIG. 3 is an exploded view of the present invention;
fig. 4 is a schematic diagram of the clutch and clutch plate of fig. 3.
In the figures, 1-third shim; 2-a clutch; 3-a first gasket; 4-needle roller bearings; 5-clutch disc, 6-chain wheel, 7-second gasket and 8-nut; 9-bulge; 10-a protuberance; 11-dishing; 12-chain saw.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, belong to the scope of protection of the invention.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1-4, an embodiment of the first aspect of the present invention provides a fixing device for a chain saw 12 chain wheel 6, including a circular clutch 2, a circular clutch disc 5 is disposed on a front side of the clutch 2, a diameter of the clutch disc 5 is greater than a diameter of the clutch 2 and is sleeved on the clutch 2, a circular first gasket 3 is disposed between the clutch disc 5 and the clutch 2, a diameter of the first gasket 3 is smaller than a diameter of the clutch 2, a needle bearing 4 is disposed between the first gasket 3 and the clutch disc 5, the needle bearing 4 is disposed in the clutch disc 5, an annular chain wheel 6 is sleeved on a front side of the clutch disc 5, a second gasket 7 is disposed on an outer side of the chain wheel 6, a nut 8 is disposed on a front side of the second gasket 7, a diameter of the second gasket 7 is smaller than a diameter of the first gasket 3, the clutch 2, the clutch disc 5, the first gasket 3, the needle bearing 4, the chain wheel 6, the first gasket 5, the, The second washer 7 and the nut 8 are coaxially arranged.
In the use, with 2 designs of clutch in the 12 right crank's of chain saw interlude, and establish on the right crank through 2 covers of clutch, 1 pad of third gasket is established between clutch 2 and chain saw 12, can support the hoof piece of clutch 2, first gasket 3 reduces the friction between clutch dish 5 and clutch 2 as the antifriction pad, detain clutch dish 5 on clutch 2, clutch dish 5 cover is established on clutch 2 promptly, and sprocket 6 is installed in the front side of clutch dish 5, consequently under the condition of not dismantling clutch 2, can make things convenient for the change of sprocket 6, second gasket 7 can restrict the ascending displacement in sprocket 6 fore-and-aft direction simultaneously, prevent sprocket 6 departure, make the working process of sprocket 6 more stable.
The rear side pad of clutch 2 is equipped with third gasket 1, and the diameter of third gasket 1 is less than clutch 2's diameter, and the diameter of third gasket 1 is greater than the diameter of first gasket 3, and third gasket 1 pad is established between clutch 2 and chain saw 12, can support clutch 2's hoof piece for clutch 2 is more stable.
An annular bulge 9 is fixedly arranged at the center of the front side of the clutch disc 5, the chain wheel 6 is sleeved on the bulge 9, and the needle bearing 4 is positioned on the inner side of the bulge 9, so that the clutch disc 5 is more tightly connected with the right crank of the chain saw 12. The diameter of second gasket 7 is greater than protruding 9's diameter and is less than the diameter of sprocket 6, can restrict the ascending displacement of sprocket 6 fore-and-aft direction through better second gasket 7, avoids the condition of sprocket 6 departure to appear.
The periphery of the protrusion 9 is integrally provided with a plurality of protrusions 10 which are uniformly distributed, the inner surface of the chain wheel 6 is provided with a plurality of recesses 11 corresponding to the protrusions 10, the protrusions 10 are inserted into the recesses 11, and through the matching between the protrusions 10 and the recesses 11, the contact area between the chain wheel 6 and the clutch disc 5 is increased, so that the installation of the chain wheel 6 can be firmer.
The right angle setting of the outside of protruding 10, the right angle setting of the inboard of sunken 11 can increase the contact between protruding 10 and the sunken 11 for be connected more firmly between sprocket 6 and the separation and reunion dish 5. The adjacent two protrusions 10 are arranged at intervals to prevent the chain wheel 6 from rotating on the protrusions 9. The thickness of the sprocket 6 is lower than the height of the protrusions 9, so that the fit between the sprocket 6 and the protrusions 9 is better.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (8)
1. The chain wheel fixing device for the chain saw comprises a circular clutch, wherein a circular clutch disc is arranged on the front side of the clutch, the diameter of the clutch disc is larger than that of the clutch, the clutch disc is sleeved with the circular clutch disc, a first circular gasket is arranged between the clutch disc and the clutch, the diameter of the first gasket is smaller than that of the clutch, a needle bearing is arranged between the first gasket and the clutch disc and is located in the clutch disc, an annular chain wheel is sleeved on the front side of the clutch disc, a second gasket is arranged on the outer side of the chain wheel in a padded mode, a nut is arranged on the front side of the second gasket, the diameter of the second gasket is smaller than that of the first gasket, and the clutch disc, the first gasket, the needle bearing, the chain wheel, the second gasket and the nut are coaxially arranged.
2. The chain wheel fixing device for the chain saw as claimed in claim 1, wherein the rear side pad of the clutch is provided with a third pad, the diameter of the third pad is smaller than that of the clutch, and the diameter of the third pad is larger than that of the first pad.
3. The chain wheel fixing device for the chain saw as claimed in claim 1, wherein an annular protrusion is fixedly arranged at the center of the front side of the clutch disc, the chain wheel is sleeved on the protrusion, and the needle bearing is positioned at the inner side of the protrusion.
4. The chain wheel attachment of claim 3 wherein the diameter of the second shim is greater than the diameter of the projection and less than the diameter of the sprocket.
5. The chain wheel fixing device of claim 3, wherein the protrusions are integrally formed at the periphery thereof with a plurality of protrusions uniformly distributed, and the inner surface of the chain wheel is formed with a plurality of recesses corresponding to the protrusions, and the protrusions are inserted into the recesses.
6. The chain wheel attachment device as claimed in claim 5, wherein the outer side of the protrusion is disposed at a right angle and the inner side of the recess is disposed at a right angle.
7. The chain wheel attachment device of claim 5, wherein adjacent projections are spaced apart.
8. The chain wheel attachment system of claim 5, wherein the thickness of the chain wheel is less than the height of the projections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922292579.4U CN211398349U (en) | 2019-12-20 | 2019-12-20 | Chain saw chain wheel fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922292579.4U CN211398349U (en) | 2019-12-20 | 2019-12-20 | Chain saw chain wheel fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211398349U true CN211398349U (en) | 2020-09-01 |
Family
ID=72232964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922292579.4U Active CN211398349U (en) | 2019-12-20 | 2019-12-20 | Chain saw chain wheel fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211398349U (en) |
-
2019
- 2019-12-20 CN CN201922292579.4U patent/CN211398349U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 226100 No. 699, Xiangjiang Road, Haimen Economic and Technological Development Zone, Nantong City, Jiangsu Province Patentee after: Jiangsu Dayi Technology Co.,Ltd. Address before: 22699, Haimen Economic and Technological Development Zone, Donghai City, Jiangsu Province Patentee before: JIANGSU DAYI M&E TOOLS Co.,Ltd. |