CN205331376U - Flexible duplex sprocket - Google Patents
Flexible duplex sprocket Download PDFInfo
- Publication number
- CN205331376U CN205331376U CN201520993559.9U CN201520993559U CN205331376U CN 205331376 U CN205331376 U CN 205331376U CN 201520993559 U CN201520993559 U CN 201520993559U CN 205331376 U CN205331376 U CN 205331376U
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- CN
- China
- Prior art keywords
- sprocket
- wheel hub
- sections
- flexible
- sprocket body
- 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 discloses a flexible duplex sprocket, including the sprocket body, be equipped with two sprockets on the periphery wall of sprocket body side by side, the center of sprocket body is equipped with the central through hole, the central through hole includes two sections that are located both sides respectively, two sections the central through hole all sets up into the bell mouth, just the internal diameter of bell mouth is directional along its place side the direction at the center of sprocket body reduces gradually, be equipped with the toper internal spline that gradually bursts at the seams in the bell mouth, two sections in the bell mouth respectively the suit be equipped with wheel hub, be equipped with on wheel hub's the periphery wall with toper internal spline's the toper external splines that gradually bursts at the seams that gradually bursts at the seams, just wheel hub with correspond be equipped with the fit clearance between the bell mouth, pack in the fit clearance be equipped with be used for with wheel hub with this body coupling of sprocket flexible elastomer as an organic whole.
Description
Technical field
This utility model relates to a kind of sprocket wheel, and concrete is a kind of flexible duplicate sprocket。
Background technology
Chain conveyer is a kind of kind of drive that the motion and power with the drive sprocket of special tooth profile are delivered to the driven sprocket with special tooth profile by chain。Chain conveyer has many advantages, and compared with V belt translation, nonelastic slip and skidding, average ratios is accurate, reliable operation, and efficiency is high；Transmission power is big, and overload capacity is strong, and the transmission size under identical operating mode is little；Required tensile force is little, acts on the pressure on axle little；Can at high temperature, humidity, many dirt, have in the adverse circumstances such as pollution and work。Chaindriven shortcoming mainly has: be simply possible to use in the transmission between two-parallel axis；Cost is high, easy to wear, easily extends, and transmission stability is poor, can produce additional dynamic load, vibration, impact and noise, be not preferably used in transmission reverse rapidly during operating。
Wherein, sprocket wheel axial plane profile of tooth both sides are arc-shaped, in order to chain link enters and exits engagement。Sprocket should have enough contact strengths and wearability, therefore how thermally treated the flank of tooth is。The engagement number of times of minor sprocket is more than big sprocket wheel, and suffered impulsive force is also big, therefore material therefor generally should be better than big sprocket wheel。Small-diameter sprocket can be made into solid formula；The sprocket wheel of intermediate diameters can be made into orifice-plate type；The sprocket wheel being relatively large in diameter may be designed to combination type, if the gear teeth lost efficacy because of abrasion, and replaceable gear ring。Although existing sprocket wheel disclosure satisfy that instructions for use to a certain extent, but is in that when chain engages, still inevitably there is the phenomenons such as bite, cause that Chain conveyer exists the problems such as bigger noise, and chain easily comes off。
Summary of the invention
In view of this, the purpose of this utility model is in that to provide a kind of flexible duplicate sprocket, it is possible to alleviates chaindriven bite phenomenon, and reduces noise。
For reaching above-mentioned purpose, this utility model provides following technical scheme:
A kind of flexible duplicate sprocket, including sprocket body, the periphery wall of described sprocket body is provided with two sprocket wheels side by side, it is characterized in that: the center of described sprocket body is provided with central through hole, described central through hole includes two sections that lay respectively at both sides, two sections of described central through holes are disposed as bellmouth, and the direction at the internal diameter of the described bellmouth center of pointing to described sprocket body along its side, place is gradually reduced, and is provided with taper involute inner spline in described bellmouth；It is set with in two sections of described bellmouths and is provided with wheel hub, the periphery wall of described wheel hub is provided with the taper involute outer spline coordinated with described taper involute inner spline, and between described wheel hub and corresponding described bellmouth, it is provided with fit clearance, fill the flexible elastomer being provided with for described wheel hub and described sprocket body being connected as one in described fit clearance。
Further, described flexible elastomer adopts polymer rubber alloy or soft metal coating to make。
Further, the width of described fit clearance is 0.5-2mm。
Further, two described bellmouths are arranged axisymmetricly。
The beneficial effects of the utility model are in that:
Flexible duplicate sprocket of the present utility model, it is set to two sections of bellmouths by the central through hole in sprocket body, and wheel hub is installed in two sections of bellmouths, and flexible elastomer is set between bellmouth and wheel hub, when sprocket wheel engages with chain, when sprocket wheel exists bite with chain, by the deformation of flexible elastomer, can effectively alleviate bite, and correspondingly reduce noise。
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and beneficial effect clearly, this utility model provides drawings described below to illustrate:
Fig. 1 is the structural representation of this utility model flexibility duplicate sprocket embodiment；
Fig. 2 is the left view of Fig. 1。
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, so that those skilled in the art can be better understood from this utility model and can be practiced, but illustrated embodiment is not as to restriction of the present utility model。
As it is shown in figure 1, be the structural representation of this utility model flexibility duplicate sprocket embodiment。The flexible filtering duplicate sprocket of the present embodiment, including sprocket body 1, the periphery wall of sprocket body 1 is provided with two sprocket wheels 2 side by side, the center of sprocket body 1 is provided with central through hole, central through hole includes two sections that lay respectively at both sides, two sections of central through holes are disposed as bellmouth, and the internal diameter of bellmouth points to the direction at center of sprocket body 1 and is gradually reduced along its side, place, taper involute inner spline 3 it is provided with in bellmouth, it is set with in two sections of bellmouths and is provided with wheel hub 4, the periphery wall of wheel hub 4 is provided with the taper involute outer spline 6 coordinated with taper involute inner spline 3, and it is provided with fit clearance between wheel hub 4 and corresponding bellmouth, the flexible elastomer 5 being provided with for wheel hub 4 and sprocket body 1 being connected as one is filled in fit clearance。Two wheel hubs 4 of the present embodiment width sum in the axial direction is equal to the width of sprocket body 1, and two bellmouths are arranged axisymmetricly。
Further, flexible elastomer 5 adopts polymer rubber alloy or soft metal coating to make, and the width of fit clearance is 0.5-2mm, and the flexible elastomer 5 of the present embodiment adopts polymer rubber alloy to make, and the width of fit clearance is 1mm。
The flexible duplicate sprocket of the present embodiment, it is set to two sections of bellmouths by the central through hole in sprocket body, and wheel hub is installed in two sections of bellmouths, and flexible elastomer is set between bellmouth and wheel hub, when sprocket wheel engages with chain, when sprocket wheel exists bite with chain, by the deformation of flexible elastomer, can effectively alleviate bite, and correspondingly reduce noise。
Embodiment described above is only the preferred embodiment lifted for absolutely proving this utility model, and protection domain of the present utility model is not limited to this。Equivalent replacement that those skilled in the art make on this utility model basis or conversion, all within protection domain of the present utility model。Protection domain of the present utility model is as the criterion with claims。
Claims (4)
1. a flexible duplicate sprocket, including sprocket body, the periphery wall of described sprocket body is provided with two sprocket wheels side by side, it is characterized in that: the center of described sprocket body is provided with central through hole, described central through hole includes two sections that lay respectively at both sides, two sections of described central through holes are disposed as bellmouth, and the direction at the internal diameter of the described bellmouth center of pointing to described sprocket body along its side, place is gradually reduced, and is provided with taper involute inner spline in described bellmouth；It is set with in two sections of described bellmouths and is provided with wheel hub, the periphery wall of described wheel hub is provided with the taper involute outer spline coordinated with described taper involute inner spline, and between described wheel hub and corresponding described bellmouth, it is provided with fit clearance, fill the flexible elastomer being provided with for described wheel hub and described sprocket body being connected as one in described fit clearance。
2. flexible duplicate sprocket according to claim 1, it is characterised in that: described flexible elastomer adopts polymer rubber alloy or soft metal coating to make。
3. flexible duplicate sprocket according to claim 1, it is characterised in that: the width of described fit clearance is 0.5-2mm。
4. flexible duplicate sprocket according to claim 1, it is characterised in that: two described bellmouths are arranged axisymmetricly。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520993559.9U CN205331376U (en) | 2015-12-04 | 2015-12-04 | Flexible duplex sprocket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520993559.9U CN205331376U (en) | 2015-12-04 | 2015-12-04 | Flexible duplex sprocket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205331376U true CN205331376U (en) | 2016-06-22 |
Family
ID=56211991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520993559.9U Expired - Fee Related CN205331376U (en) | 2015-12-04 | 2015-12-04 | Flexible duplex sprocket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205331376U (en) |
-
2015
- 2015-12-04 CN CN201520993559.9U patent/CN205331376U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20160622 Termination date: 20161204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |