CN204300294U - Sprocket wheel - Google Patents
Sprocket wheel Download PDFInfo
- Publication number
- CN204300294U CN204300294U CN201420786710.7U CN201420786710U CN204300294U CN 204300294 U CN204300294 U CN 204300294U CN 201420786710 U CN201420786710 U CN 201420786710U CN 204300294 U CN204300294 U CN 204300294U
- Authority
- CN
- China
- Prior art keywords
- hole
- carrier bars
- carrier
- strip
- carrier bar
- 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
Links
Abstract
The utility model discloses a kind of sprocket wheel, comprise wheel hub, hub centre is provided with axis hole, the periphery both sides of wheel hub are provided with step, step is provided with some carrier bars, some carrier bar even circumferential distributions, some carrier bars all offer the mounting groove matched with step, some carrier bars all offer plate hole, on step, corresponding plate hole is provided with through hole, bolt is equipped with in through hole and plate hole, bolt one end is provided with nut, the outer rim of some carrier bars is provided with some sprockets, the positioning block of strip is provided with in mounting groove on some carrier bars, on step, the positioning block of corresponding strip offers the locating slot of strip, the utility model was both convenient for changing carrier bar, cut the waste, the working life of elongate member simultaneously.
Description
Technical field
The utility model belongs to drive wheel field, relates to a kind of sprocket wheel in particular.
Background technique
Sprocket wheel is the wheel of band cog type whelp, in order to pitch on pitch chain ring or cable accurately block be meshed, it be a kind of solid or be with the gear of spoke, engages move to transmit with (roller) chain.
Sprocket wheel is widely used in power-transmission system, the wheel body outer wall that common sprocket wheel comprises hollow shaft-like has outstanding wheel rim, wheel rim have the gear teeth, common sprocket wheel needs to coordinate transmission shaft and chain to use, can wear and tear or damage after common sprocket wheel uses for a long time, need dismounting and the sprocket wheel more renewed; But common chain sprocket structure is closed, transmission shaft and relevant external means thereof must be removed together when removing sprocket wheel, complex operation step, working efficiency are low.
Application number be 201220458388.6 Chinese patent disclose a kind of detachable drive sprocket, comprise wheel hub and be arranged on the spoke on wheel hub, the center of wheel hub is provided with axis hole, it is characterized in that, the periphery both sides of described spoke are provided with step, described step is provided with a left side by fastening piece, right carrier bar, a described left side, the outer rim of right carrier bar is provided with sprocket, this sprocket wheel may wear to a certain degree although can work as carrier bar, pull down the carrier bar needing to change, without the need to whole wheel hub is removed, but because it is by left, right carrier bar is fixed on step, left, sprocket on right carrier bar cannot avoid centre to leave gap when mounted, particularly after a long time use, or the change of temperature during owing to using, gap is caused to become large, dust and impurity is easily entered in gap, left, sprocket on right carrier bar not only distance becomes large, sprocket easily deforms, and be more prone to wearing and tearing, even cause the chain be mated cannot be fastened on sprocket.
Model utility content
For the deficiencies in the prior art, the utility model provides one and was both convenient for changing carrier bar, cuts the waste, and increases the service life simultaneously, reduces the sprocket wheel of chain odontotripsis probability.
For achieving the above object, the utility model provides following technological scheme: a kind of sprocket wheel, comprise wheel hub, hub centre is provided with axis hole, the periphery both sides of wheel hub are provided with step, step is provided with some carrier bars, some carrier bar even circumferential distributions, some carrier bars all offer the mounting groove matched with step, some carrier bars all offer plate hole, and on step, corresponding plate hole is provided with through hole, is equipped with bolt in through hole and plate hole, bolt one end is provided with nut, and the outer rim of some carrier bars is provided with some sprockets.
By adopting technique scheme, when mounted, the axis hole of wheel hub is fixed on the required axle used, the mounting groove of some carrier bars is aimed at step, makes step embed in mounting groove, then bolt is passed plate hole and through hole, again by nut, can install and fix; In use, chain coordinates with sprocket, and sprocket and carrier bar are overall structure, not be spliced, so seamless on sprocket, i.e. be comparatively put together easy to wear of sprocket or damage, increase the service life, mounting groove coordinates with step simultaneously, and step embeds in mounting groove, fixing more firm, when needs are changed, only need the carrier bar of correspondence to take off, be replaced with good carrier bar, it is convenient to change.
The utility model is set to further: the positioning block being provided with strip in the mounting groove on some carrier bars, and on step, the positioning block of corresponding strip offers the locating slot of strip.
By adopting technique scheme, when carrier bar is arranged on step, by the locating slot position alignment of the position of the positioning block of strip and strip, then being pushed along the locating slot direction of strip by carrier bar can by through hole and plate hole axial alignment, be more prone to when bolt penetrates, without the need to slowly through hole being alignd with plate hole, saving the installation time, installing easier.
The utility model is set to further: on carrier bar, outer marginal circumference is provided with oil groove.
By adopting technique scheme, when reality uses, chain is coated with lubricant oil, chain and sprocket contacting point also scribble lubricant oil, chain is in sprocket contact process, lubricant oil on chain will flow on sprocket, and lubricant oil flows in oil groove immediately, can not continue to flow to axial direction, lubricant oil is avoided to enter in through hole, plate hole, prevent bolt falling, avoid lubricant oil to enter in the gap of step and mounting groove, prevent from skidding displacement occurs between step and mounting groove.
The utility model is set to further: on wheel hub, corresponding axis hole place is provided with keyway.
By adopting technique scheme, wheel hub is when being arranged on axle, and keyway can prevent wheel hub and axle from skidding, and makes it connect more firm.
Compared with prior art, the utility model sprocket wheel was both convenient for changing carrier bar, cut the waste, and increased the service life simultaneously, reduced chain odontotripsis probability.
Accompanying drawing explanation
Fig. 1 is the perspective view that the utility model sprocket wheel embodiment is equipped with part carrier bar;
Fig. 2 is the plan view that the utility model sprocket wheel embodiment is equipped with part carrier bar;
Fig. 3 is the three-dimensional structure diagram of the utility model sprocket wheel spoke;
Fig. 4 is the three-dimensional structure diagram of the utility model carrier bar;
Fig. 5 is the plan view of the utility model carrier bar.
Reference character: 1, wheel hub; 11, axis hole; 12, keyway; 13, step; 131, locating slot; 132, through hole; 2, carrier bar; 21, sprocket; 22, oil groove; 232, plate hole; 25, mounting groove; 251, positioning block.
Embodiment
Referring to figs. 1 through Fig. 5, the embodiment of the utility model sprocket wheel is described further.
A kind of sprocket wheel, comprise wheel hub 1, wheel hub 1 center is provided with axis hole 11, the periphery both sides of wheel hub 1 are provided with step 13, step 13 is provided with some carrier bars 2, some carrier bar 2 even circumferential distributions, some carrier bars 2 all offer the mounting groove 25 matched with step 13, some carrier bars 2 all offer plate hole 232, on step 13, corresponding plate hole 232 is provided with through hole 132, bolt is equipped with in through hole 132 and plate hole 232, bolt one end is provided with nut, the outer rim of some carrier bars 2 is provided with some sprockets 21, the preferred carrier bar 2 of the present embodiment is provided with four, each carrier bar 2 all offers two plate holes 232, on wheel hub 1, corresponding axis hole 11 place is provided with keyway 12, bolt and this accompanying drawing of nut not shown.
When mounted, the axis hole 11 of wheel hub 1 is fixed on the required axle used, keyway 12 can prevent wheel hub 1 and axle from skidding, it is made to connect more firm, the mounting groove 25 of some carrier bars 2 is aimed at step 13, makes step 13 embed in mounting groove 25, then bolt is passed plate hole 232 and through hole 132, again by nut, can install and fix; In use, chain coordinates with sprocket 21, and sprocket 21 and carrier bar 2 are overall structure, not be spliced, so seamless on sprocket 21, i.e. be comparatively put together easy to wear of sprocket 21 or damage, working life extends, mounting groove 25 coordinates with step 13 simultaneously, and step 13 embeds in mounting groove 25, fixing more firm, when needs are changed, only need the carrier bar 2 of correspondence to take off, be replaced with good carrier bar 2, it is convenient to change.
The positioning block 251 of strip is provided with in mounting groove 25 on further some carrier bars 2, on step 13, the positioning block 251 of corresponding strip offers the locating slot 131 of strip, the positioning block 251 of strip and the locating slot 131 of strip are all towards the axial direction of wheel hub 1, when carrier bar 2 is arranged on step 13, by locating slot 131 position alignment of the position of the positioning block 251 of strip and strip, then being pushed along locating slot 131 direction of strip by carrier bar 2 can by through hole 132 and plate hole 232 axial alignment, be more prone to when bolt penetrates, without the need to slowly through hole 132 being alignd with plate hole 232, save the installation time, install easier.
On further carrier bar 2, outer marginal circumference is provided with oil groove 22, when reality uses, chain is coated with lubricant oil, and chain is that, in sprocket 21 contact process, the lubricant oil on chain will flow on sprocket 21, lubricant oil flows in oil groove 22 immediately, can not continue, to axial direction flowing, to avoid lubricant oil to enter in through hole 132, plate hole 232, prevent bolt falling, avoid lubricant oil to enter step 13 with the gap of mounting groove 25, prevent from, between step 13 and mounting groove 25, skidding displacement occurs.
The utility model also can add rubber pad between the surface of contact of adjacent two carrier bars 2, rubber pad not only can play seal action, there is buffering simultaneously, play flexible adjustment effect, avoid expanding with heat and contract with cold of carrier bar 2 to cause adjacent two carrier bars 2 extrusion-deformation or the larger gap of appearance mutually.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. a sprocket wheel, comprise wheel hub, hub centre is provided with axis hole, it is characterized in that: the periphery both sides of described wheel hub are provided with step, described step is provided with some carrier bars, described some carrier bar even circumferential distributions, described some carrier bars all offer the mounting groove matched with step, described some carrier bars all offer plate hole, on described step, corresponding plate hole is provided with through hole, be equipped with bolt in described through hole and plate hole, bolt one end is provided with nut, and the outer rim of described some carrier bars is provided with some sprockets.
2. sprocket wheel according to claim 1, is characterized in that: the positioning block being provided with strip in the mounting groove on described some carrier bars, on described step, the positioning block of corresponding strip offers the locating slot of strip.
3. sprocket wheel according to claim 2, is characterized in that: on described carrier bar, outer rim is circumferentially provided with oil groove.
4. sprocket wheel according to claim 3, is characterized in that: on described wheel hub, corresponding axis hole place is provided with keyway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420786710.7U CN204300294U (en) | 2014-12-12 | 2014-12-12 | Sprocket wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420786710.7U CN204300294U (en) | 2014-12-12 | 2014-12-12 | Sprocket wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204300294U true CN204300294U (en) | 2015-04-29 |
Family
ID=53105835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420786710.7U Expired - Fee Related CN204300294U (en) | 2014-12-12 | 2014-12-12 | Sprocket wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204300294U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282013A (en) * | 2018-11-22 | 2019-01-29 | 高新技术产业开发区创宏机械厂 | A kind of modular multi-function sprocket wheel |
-
2014
- 2014-12-12 CN CN201420786710.7U patent/CN204300294U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282013A (en) * | 2018-11-22 | 2019-01-29 | 高新技术产业开发区创宏机械厂 | A kind of modular multi-function sprocket wheel |
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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: 20150429 Termination date: 20171212 |