Utility model content
The utility model aims to solve the problem that the technical issues of above-mentioned mentioned, provides a kind of high rigidity, lightweight and craftsmanship
Good integral type flywheel.
The utility model is realized by following technical solution:
A kind of high rigidity integral type flywheel, including it is multiple it is of different sizes, for receiving chain and will be transmitted by the chain
Peripheral force reach the gear ring of bicycle rear wheel hub and the support portion for fixing the annular of adjacent gear ring, which can be with
Another gear ring is shifted to from a gear ring by gear;Support portion includes being supported by the first order that disc and cylinder muscle form
Portion, second level support portion ...;First order support portion includes the first disc and is distributed in several on the first disc
A first muscle, second level support portion includes the second disc and several are distributed on second muscle on the second disc, with this
Analogize;Between adjacent support portion, cylinder muscle wherein one end of the first disc and next stage support portion overlaps to form the first overlapped points,
One end of first muscle and the inside of the first disc overlap, and the other end of first muscle is fixed to be formed with the second disc lateral overlap
Second overlapped points;First gear ring is fixed in the first overlapped points, and third gear ring is fixed in the second overlapped points;First disc is ring
Shape platy structure, inside of first disc far from the first gear ring have the ring muscle in continuous circular shape;It is radially set on first muscle
At least one layer of second gear ring is equipped with, the first lightening hole is provided on disc.
Preferably, the outer diameter of support portion is identical with the internal diameter of corresponding gear ring, and any two support portion shape is similar;Thus lead to
The disc and cylinder muscle sequence overlap joint for crossing all support portions form multistage stair-stepping cone-shaped component, and corresponding gear ring is fixed on taper structure
A portion of flywheel or flywheel is formed on part.
Preferably, support is formed by first muscle between adjacent the first disc and the second disc, two adjacent the
A tin muscle, the first disc positioned at upside and the second disc positioned at downside form mudhole.
Preferably, the quantity m of mudhole and the relationship of the tooth number Z of third gear ring (6a) overlapped are Z- (0.5*Z+1)
≤ m≤Z+ (0.5*Z+1), m, Z are integer.
Preferably, cylinder muscle is vertically overlapped on disc.
Preferably, the second gear ring is between the first gear ring and third gear ring, and third gear ring, the second gear ring and first
The diameter Relationship of gear ring becomes larger to form conic tower type multilayer speed change gear ring successively.
Preferably, the fixed point of the second gear ring and first muscle is third overlapped points, when on same first muscle
The second gear ring when having more than two, the diameter Relationship between the second gear ring should meet conic tower type multilayer speed change gear ring, more
A third overlapped points are evenly distributed on first muscle.
Preferably, the fixed point of the second gear ring and first muscle is third overlapped points, when on same first muscle
The second gear ring be one when, third overlapped points are arranged on the central area of first muscle.
Preferably, the fixed point of the second gear ring and first muscle is third overlapped points, with multiple on first order support portion
The third overlapped points that first muscle is in same level are in turn connected to form limited area, and the second gear ring is located at adjacent the
Part between three overlapped points is outwardly recessed to form the first lightening grooves away from limited area.
Preferably, the second lightening grooves are provided on ring muscle.
Preferably, it is provided with the first lightening hole on disc, the first lightening hole is circle, kidney-shaped, rectangular one kind or circle,
Kidney-shaped, rectangular arbitrary combination.
Preferably, disc, cylinder muscle and gear ring are process by one piece of integral material.
Advantageous effect is:
Compared with prior art, the high rigidity integral type flywheel of the utility model is complete by being set on the disc of annular
Ring muscle rigidity in the circumferential and antitorque deformability will be higher by much compared with the form of disconnection so that gear ring passes over
Torsion preferably uniformly disperseed, therefore under equal quality, flywheel can bear higher torsional moment, exist accordingly
Its torsional strength, rigidity and service life improve a lot compared with the prior art in the case that load is constant;This reality simultaneously
With novel high rigidity integral type flywheel by setting at least one layer of second gear ring on cylinder muscle, one layer of support portion is saved, it can
The diameter of appropriate increase cylinder muscle plays the role of simplified structure and mitigates quality, make without increasing whole quality
Obtaining the enhancing of torsional strength ability, rigidity raising and service life increases, and in processing, especially the number of teeth in adjacent gear ring
When differing less and being processed, the distance between disc adds as the height of cylinder muscle increases and increases so as to effectively increase
The increase of space that work cutter can transfer to other use, so can the cutter diameter of more flexible selection processing finally cause craftsmanship more
Good, processing quality is more preferable.
Specific embodiment
Component in present embodiment, such as first order support portion 1 and second level support portion 1a, the first disc 2 and the second spoke
Plate 2a, first muscle 3 and second muscle 3a and the first gear ring 6 and third gear ring 6a etc., form, structure and size are identical
Or it is similar, it should be representative when repeating component and accordingly expanding.
As shown in Figure 1, a kind of high rigidity integral type flywheel, including it is multiple it is of different sizes, for receiving chain and will be by
The peripheral force that the chain transmits reaches the gear ring of bicycle rear wheel hub and the support portion of the annular for fixed gear ring, the chain
Item can shift to another gear ring by gear from a gear ring;Support portion includes the first order being made of disc and cylinder muscle
Support portion 1, second level support portion 1a ... and so on;First order support portion 1 includes the first disc 2 and is distributed in the first disc
Several first muscle 3 on 2, second level support portion 1a includes the second disc 2a and several are distributed on the second disc 2a
Second muscle 3a, and so on;Between adjacent support portion, cylinder muscle wherein one end of the first disc 2 and next stage support portion
Overlap joint forms the first overlapped points 4, and the inside of one end of first muscle 3 and the first disc 2 overlaps, the other end of first muscle 3 with
Second disc 2a lateral overlaps are fixed to form the second overlapped points 4a;First gear ring 6 is fixed in the first overlapped points 4, third gear ring
6a is fixed on the second overlapped points 4a;Disc is excessively thin according to the annular sheet metal that the characteristic difference of material can be 0.5~2.5mm thickness
It influences intensity and subsequent manufacturing procedure and such as reduces repeated hole or lightening grooves, blocked up one cause material cost to waste, and processes
Tool wear is relatively fast, and causes the volume increase of flywheel;Inside of first disc 2 far from the first gear ring 6 has in company
Continue the ring muscle 5 of annular;The peripheral force that chain transmits forms twisting force to the first overlapped points 4 by the first gear ring 6, and then transmits
Onto the first disc 2, since the first disc 2 is one piece of whole plate, the torque of transmission is uniformly disperseed, therefore in the circumferential firm
Degree and antitorque deformability will be higher by much compared with the form of disconnection so that antitorque strong possessed by flywheel under equal quality
Degree, rigidity and service life service life greatly improve.
Meanwhile at least one layer of second gear ring 7 is radially provided on first muscle 3, it is contemplated that the form of flywheel entirety, ruler
Very little and weight factor, increased second gear ring, 7 quantity is preferred with one to four layers on first muscle 3, and quantity is too many, can influence
Support strength and the craftsmanship of processing;The fixed point of second gear ring 7 and first muscle 3 is third overlapped points 10;It retouches for convenience
It states and understands, although the second gear ring 7, there is no corresponding to support portion, this section and following it is still assumed that a supporting member should
Supporting member is first order support portion 1, second level support portion 1a or similar structure, which originally set in not use
Support and fixed structure necessary to each layer of gear ring during meter scheme;It is set by present design by what at least two layers of gear ring merged
It counts onto a support portion so that one layer of supporting member is corresponded to from one layer of gear ring of script structure and becomes present two or more layers
Gear ring shares a support portion, eliminates the supporting member for corresponding to the second gear ring 7 originally, plays the role of simplified structure,
Although first muscle 3 is considered to combine multilayer gear ring, the distance between gear ring is constant, it is therefore desirable to overstriking and add
It is total to omit one layer of supporting member rear flywheel for height, but correspond to relative to one layer of gear ring of script structure the form of a supporting member
Quality is to reduce, and because the rigidity in first 3 overstriking of muscle its circumferential direction and anti-twisting property are risings;Simultaneously because first
Cylinder muscle 3 highly improves so that the distance between adjacent first disc, 2 and second disc 2a is greatly increased, in processing and fabricating gear ring
Especially when the number of teeth of adjacent gear ring differs less processing, the space that process tool can transfer to other use increases, and can as needed select more
For suitable cutter and more suitable feed withdrawing distance, and finally so that region metalworking work between first muscle 3
Skill significantly optimizes, and quality is more preferably, and the region between second muscle 3a is similarly.
Preferably embodiment, as depicted in figs. 1 and 2, the outer diameter of support portion are identical with the internal diameter of corresponding gear ring, thus lead to
It crosses all support portion disc and forms multistage stair-stepping cone-shaped component 9 with cylinder muscle sequence overlap joint, corresponding gear ring is fixed on taper structure
A portion of flywheel or flywheel is formed on part 9, the connection mode of gear ring and cone-shaped component 9 can be integrally connected,
It can be machined to two individual modules and the two is connected as by a non-removable unit by subsequent technique again, recommend
It is to use above-mentioned disc, cylinder muscle and gear ring being process by one piece of integral material, so that between different components
Connection more fastens, and form twisting force by the first gear ring 6 by the peripheral force that chain transmits (does not mark to overlapped points in figure
Number), and then it is transmitted on the first disc 2, the first disc 2 is again by moment loading to first muscle 3, and first muscle 3 is by torque
Be transferred to the first overlapped points 4 be transitioned into again on the disc of next stage support portion and so on and be finally applied to the branch of minimum diameter
On support part (not marked in figure), the support portion of minimum diameter is connect with the shaft wheel hub on bicycle so that even if support
Portion is not provided with wheel hub, it is also possible that flywheel realizes the transmission of whole torsion and opposite with wheel hub.
Preferably embodiment, as shown in Fig. 2, passing through first muscle 3 between adjacent the first disc 2 and the second disc 2a
Form support, first adjacent muscle 3 of any two, the first disc 2 positioned at upside and the second disc 2a positioned at downside
Mudhole 8 is formed, is conducive to discharge miriness during flywheel work, and the setting of mudhole 8 advantageously reduces the total matter of flywheel
Amount;The quantity m of mudhole 8 and the relationship of the tooth number Z of third gear ring 6a overlapped are Z- (0.5*Z+1)≤m≤Z+ (0.5*Z
+ 1), m, Z are integer, such as when the tooth number Z of third gear ring 6a is 20, and the quantity m of mudhole 8 is in the range of 20 ± 11
Any integer value, it means that first muscle 3 can be aligned or be misaligned with the teeth portion center of small diameter third gear ring 6a,
When tooth number Z is 20 and the quantity m of mudhole 8 is 20, the two difference is 0, the teeth portion center pair of first muscle 3 and third gear ring 6a
Together, the uniformity of rigidity is preferable, and when the two difference is not 0, first muscle 3 can be with the teeth portion of small diameter third gear ring 6a
Center is staggered certain angle, can preferably adapt to the needs of processing technology and high intensity high rigidity, between first muscle 3
The width of mudhole 8 can be adjusted centainly as needed, and the width between different mudholes 8 is also that can carry out difference
Amount setting, facilitates processing.
Preferably embodiment, as depicted in figs. 1 and 2, the second gear ring 7 be located at larger-diameter first gear ring 6 with it is smaller
Between the third gear ring 6a of diameter, and the diameter Relationship of third gear ring 6a, the second gear ring 7 and the first gear ring 6 become larger shape successively
Into conic tower type multilayer speed change gear ring, convenient the first gear ring 6 on same first muscle 3 and the second gear ring 7 can bases
The function of adjusting chain is needed, while the inclined direction of the conic tower type multilayer speed change gear ring and the cone-shaped component 9 should phase
It adapts to, preventing the increasing of the diameter ring gear on the support portion 1a of the second level leads to waste of materials.
Preferably embodiment, when the second gear ring 7 tool on same first muscle 3 there are two and it is above when, the
Diameter Relationship between two gear rings 7 should meet the relationship of the conic tower type multilayer speed change gear ring, and multiple third overlapped points 10 are equal
Even is distributed on first muscle 3 so that the distance between multilayer gear ring is suitable so that easy to process and can ensure speed change
Performance.
Preferably embodiment, as shown in Figure 1, when the second gear ring 7 on same first muscle 3 is one,
Third overlapped points 10 are arranged on the central area of first muscle 3 so that third gear ring 6a, the second gear ring 7 and the first gear ring 6 it
Between distance it is suitable so that it is easy to process and can ensure gearshift performance.
Preferably embodiment as shown in Fig. 2, understanding for convenience, defines multiple first on first order support portion 1
The third overlapped points 10 that muscle 3 is in same level are in turn connected to form limited area, and the second gear ring 7 is located at adjacent third
Part between overlapped points 10 away from the limited area it is outside it is recessed go out to form the first lightening grooves 11, the first lightening grooves 11 are excellent
The shape of choosing be arc-shaped or half square both sides band circular arc it is excessive, due to the height of first muscle 3 be it is increased, can be according to need
The first lightening grooves 11 are processed toward external second gear ring 7 inside the pyramidal structure, and should be noted that first subtracts
Baking soda 11 should be avoided when processing close to third overlapped points 10, and the purpose of the first lightening grooves 11 of setting is to reduce by the second gear ring 7
Quality, and then the total quality of flywheel is reduced, simultaneously because the connection relation of third overlapped points 10 is not influenced by processing, the second tooth
The rigidity and anti-twisting property of circle 7 and first 3 structure of muscle being combined do not decline.
Preferably embodiment, as shown in Fig. 2, the first lightening hole 21 is provided on disc, the shape of the first lightening hole 21
It can be circular hole or kidney slot or square hole, can also be the combination of three certainly, the size in each hole can be according to disc
Width determines, and is not connected between each hole after trepanning, can also be extended on ring muscle 5 without the first lightening hole 21, so as to keep
The integrality of ring muscle 5 so that the first disc 2 is a whole plate rather than disconnects plate, by setting the first lightening hole 21, antitorque
Ability and rigidity advantageously reduce the quality of the first disc 2 so as to reduce the total quality of flywheel, and flywheel while raising
Miriness during work can also be discharged along mudhole 8 using the first lightening hole 21.
Preferably embodiment as shown in Fig. 2, being provided with the second lightening hole 31 on first muscle 3, opens up the second lightening hole
Advantageously reduced while ensureing that the anti-twisting property of connection structure and rigidity are unaffected after 31 the quality of first muscle 3 from
And reduce the total quality of flywheel.
Preferably embodiment as shown in Fig. 2, being provided with the second lightening grooves 51 on ring muscle 5, advantageously reduces the first disc
2 quality and then the total quality of flywheel is reduced, the second lightening grooves 51 are preferably arc-shaped or half square both sides band circular arc mistake
Degree, and should not interfere to ensure that the integrality of ring muscle 5 avoids pair with the first lightening hole 21;Second lightening grooves 51 are by boring
The semi-finished product of shape component 9 are processed in milling process and are obtained, to ensure craftsmanship.
Above example is only to illustrate the technical solution of the utility model and is not intended to limit it, all without departing from this
Any modification of utility model spirit and scope or equivalent replacement should all cover the range in technical solutions of the utility model
It is interior.