Chain wheel set is fit and utilize the chain gear apparatus of this chain wheel set zoariumTechnical field
The invention relates to sprocket wheel, refer to that a kind of chain wheel set is fit especially and utilize the chain gear apparatus of this chain wheel set zoarium, to be installed on the wheel hub of bicycle rear.
Background technology
Press, the wheel hub of Regular Bicycle trailing wheel is provided with the sprocket wheel of several different-diameter, and chain can be made optionally to engage on one sprocket wheel by derailleur, to realize different gear ratios.
And as No. 102012006771.2, German patent DE, it has a sprocket assemblies 12, it has the sprocket wheel 141 to 1410 of several different-diameter and the different number of teeth, wherein the sprocket wheel 1410 of maximum gauge is engaged in driver 16 one end, 141 to 146, the sprocket wheel of all the other minimum diameters is relatively engaged on external thread structure 22 and screws togather part with negative thread 30, and the axial location part of driver 16.
But shown in as graphic in patent, its sprocket wheel 141 to 1410 is integrated full slice system, relative to the mode using general single sheets to manufacture sprocket wheel, and seem that manufacturing cost is too high, and be heavy without weight-saving effect.
Summary of the invention
For solving above-mentioned existing issue, the present invention discloses a kind of chain wheel set zoarium and utilizes the chain gear apparatus of this chain wheel set zoarium, wherein chain wheel set zoarium is sequentially folded to establish by the sprocket wheel of several different-diameter to form, and each sprocket wheel makes with single flat steel product, reduces manufacturing cost according to this; In addition, in and be provided with a connection piece between every two sprocket wheels, in order to will put on each sprocket wheel transmission of torque on adjacent sprocket wheel, and then reach the stressed object of dispersion.
So, in order to reach aforementioned object, the invention provides a kind of chain wheel set fit, be installed in a sprocket wheel installation component, and sprocket wheel installation component is the wheel hub being installed on a bicycle rear, in order to make chain wheel set zoarium engagement one chain, wherein, chain wheel set zoarium comprises: the sprocket wheel of several different-diameter, is axially to be stacked at sprocket wheel installation component from large to small, the periphery of those sprocket wheels has a sprocket respectively, in order to selectivity engagement chain; And several attaching parts, be coupled in annularly respectively between every two sprocket wheels.
In order to reach aforementioned object, the present invention also provides a kind of chain gear apparatus, and be installed on a bicycle rear, this chain gear apparatus comprises: a driving body, is the wheel hub being connected to bicycle rear, in order to transmitting torque; One switching sleeve is that one end spiral shell is located at driving body; The sprocket wheel of several different-diameter, be that axially self-powered kinetoplast is established toward switching sleeve is folded from large to small, the periphery of those sprocket wheels has a sprocket respectively, engages a chain in order to selectivity; Several attaching parts is coupled between every two sprocket wheels respectively annularly; And a fastener, be screw lock in the other end of switching sleeve, in order to axial restraint switching sleeve.
Preferably, every a connection piece of the present invention is formed by a bonding jumper winding.
Preferably, those attaching partss of the present invention are arranged at from large to small between every two adjacent sprocket wheels.
Preferably, each sprocket wheel of the present invention is provided with several combined hole, and the both sides difference clip of every a connection piece is in those combined holes, and those combined holes are a perforation, more preferably can be circular hole.
Preferably, every a connection piece of the present invention is equidistantly convexly equipped with several fixture block respectively at both sides, in order to clip in those combined holes.
Preferably, those fixture blocks of the present invention are in bilateral symmetry shape, and each fixture block is rectangular-shaped, and the long limit of each fixture block is the hand of rotation spread configuration along those sprocket wheels.
Preferably, of the present invention large diameter sprocket to time minor diameter sprocket wheel is sprocket wheel clip by two attaching partss and both sides.
Whereby, chain wheel set zoarium is distinctly completed with single flat steel product by several sprocket wheel, but not it is one-body molded, so manufacturing cost can be reduced, in addition, attaching parts is coupled between every two sprocket wheels respectively annularly, so can act on the torque of each sprocket wheel, disperse stressed by the sprocket wheel be connected, so as to the ability of strengthening chain wheel set zoarium by high torque (HT).
Accompanying drawing explanation
Fig. 1 is exploded drawings of the present invention.
Fig. 2 is assembled sectional view of the present invention.
Fig. 3 is the enlarged diagram of Fig. 2.
Fig. 4 is the lateral plan of chain wheel set zoarium of the present invention, but does not comprise the sprocket wheel of minimum diameter.
Fig. 5 is driving body schematic appearance of the present invention.
Fig. 6 is the cutaway view of switching sleeve of the present invention.
Fig. 7 is the lateral plan of fastener of the present invention.
Fig. 8 A is attaching parts schematic appearance of the present invention.
Fig. 8 B is attaching parts schematic appearance of the present invention, and attaching parts not yet becomes loop shaped.
[main element nomenclature]
Chain gear apparatus 100 sprocket wheel installation component 1
Fit 2 driving bodies 10 of chain wheel set
First spline 11 first outside thread 12
Switching sleeve 20 second spline 21
First negative thread 22 second negative thread 23
Fastener 30 second outside thread 31
Path sprocket wheel 32,33 sprocket 321,331
Sprocket wheel 40 ~ 48 connecting hole 400
Sprocket 401 ~ 481 combined hole 402 ~ 482
Bearing 50 attaching parts 60
Fixture block 61.
Detailed description of the invention
For ease of the central idea that the present invention is represented in foregoing invention content one hurdle is described, hereby express with specific embodiment.In embodiment, various different object is the ratio in being suitable for enumerating explanation, but not is drawn in the ratio of actual components, and conjunction is first chatted bright.
As shown in Figure 1 to Figure 3, chain gear apparatus 100 of the present invention is 11 segment speed-changing systems, and to provide preferably transmission effect, chain gear apparatus 100 comprises sprocket wheel installation component 1 and a chain wheel set zoarium 2.Chain wheel set zoarium 2 is installed in sprocket wheel installation component 1, and sprocket wheel installation component 1 is installed on the wheel hub of a bicycle rear, a chain is engaged in order to make fit 2 selectivity of chain wheel set, wherein, sprocket wheel installation component 1 comprises driving body 10, switching sleeve 20 and a fastener 30, and chain wheel set zoarium 2 is made up of the sprocket wheel 40 ~ 48 of several different-diameter and several attaching parts 60.
Driving body 10 is existing component, and is tubular, and as shown in Figure 5, and driving body 10 has the first outside thread 12 of one first spline 11 and side thereof in periphery, and driving body 10 is connected to the wheel hub of bicycle rear, in order to transmitting torque.Wherein, the inner suitably place of driving body 10 has two bearings 50, to make to be supported on bicycle rear wheel shaft.
Switching sleeve 20 is provided with one second spline 21 in periphery, and in addition, switching sleeve 20 is respectively equipped with one first negative thread 22 and one second negative thread 23 in two ends, as shown in Figure 6.First negative thread 22 spiral shell of switching sleeve 20 is located at the first outside thread 12.
As shown in Figure 7, fastener 30 has one second outside thread 31, the second negative thread 23 of switching sleeve 20 is located in order to spiral shell, in order to axial restraint switching sleeve 20, and fastener 30 periphery has two path sprocket wheels 32,33, the external diameter of path sprocket wheel 33 is less, and the periphery of two path sprocket wheels 32,33 has sprocket 321,331.
As shown in Figures 2 to 4, sprocket wheel 40 ~ 48 is axially stacked at sprocket wheel installation component 1 from large to small, be preferably, sprocket wheel 40 ~ 48 from large to small axially self-powered kinetoplast 10 establish toward switching sleeve 20 is folded, wherein, sprocket wheel 40 diameter is comparatively large, and sprocket wheel 48 diameter is minimum, and sprocket wheel 48 corresponds to two path sprocket wheels 32,33 of fastener 30, and path sprocket wheel 32,33 diameter is less than sprocket wheel 48.In the present invention, sprocket wheel 40 ~ 48 is made up of single sheet material respectively, the central authorities of sprocket wheel 40 ~ 48 respectively have a concavo-convex connecting hole 400, to make maximum and secondary large diameter sprocket wheel 40,41 be sticked on the first spline 11 of driving body 10, sprocket wheel 42 ~ 48 is then sequentially installed on the second spline 21 of switching sleeve 20.
The periphery of sprocket wheel 40 ~ 48 is respectively equipped with a sprocket 401 ~ 481, in order to selectivity engagement chain, and sprocket wheel 40 ~ 48 is respectively provided with several combined hole 402 ~ 482, and each combined hole 402 ~ 482 is arranged in the form of a ring, and circular hole is embodied as in the present invention, be further a perforation.It is worth mentioning that, except the sprocket wheel 40 of maximum gauge is with except the sprocket wheel 48 of minimum diameter, all the other sprocket wheels 41 ~ 47 all tool are provided with the combined hole 412 ~ 472 of two circles.
As shown in Fig. 8 A and Fig. 8 B, every a connection piece 60 is via a continuous print bonding jumper, is formed, and utilize welding manner to fix in the two ends of attaching parts 60 by the cutting of Linear cut engineering method, and distinguishes winding annularly from large to small between every two sprocket wheels 40 ~ 48.Wherein, the both sides of every a connection piece 60 are equidistantly convexly equipped with several fixture block 61, in order to clip in those combined holes 402 ~ 482, and fixture block 61 is in bilateral symmetry shape, and the long edge of each fixture block 61 the hand of rotation spread configuration of sprocket wheel 40 ~ 48, with make each fixture block 61 tool preferably structural strength bear torque.In addition, the most combined hole 422 ~ 472 of great circle of sprocket wheel 42 ~ 47 is corresponding with the combined hole 412 ~ 462 of the most ringlet of the sprocket wheel 41 ~ 46 in adjacent and larger footpath and be positioned on same axis, and the combined hole 412 of the most great circle of sprocket wheel 41 is only corresponding with the combined hole 402 of sprocket wheel 40 and be positioned on same axis, the combined hole 482 of sprocket wheel 48 is corresponding with the combined hole 472 of the most ringlet of sprocket wheel 47 and be positioned on same axis, so that for aforesaid several attaching parts 60 clip, accordingly, then have to secondary minor diameter sprocket wheel 47 in the present invention in secondary large diameter sprocket 41 and utilize two attaching partss 60 to locate with sprocket wheel 40 ~ 48 clip of the left and right sides.
Whereby, chain wheel set zoarium 2 is distinctly completed with single flat steel product by several sprocket wheel 40 ~ 48, but not it is one-body molded, so can reduce manufacturing cost, in addition, between each sprocket wheel 40 ~ 48, there is attaching parts 60, be coupled between every two sprocket wheels respectively annularly by attaching parts 60, so can will act on the torque of each sprocket wheel 40 ~ 48, disperse stressed by the sprocket wheel be connected, so as to the ability of strengthening chain wheel set fit 2 by high torque (HT).
Although the present invention explains with a most preferred embodiment, be skillful in this those skilled in the art can not depart from the present invention spirit with category under do various multi-form change.Above illustrated embodiment, only in order to the present invention to be described, is not used to limit the scope of the invention.Such as do not disobey the present invention's various modifications of being engaged in of spirit or change, all belong to the present patent application the scope of the claims.