CN107839825A - Bicycle expansion brake hub assembly - Google Patents
Bicycle expansion brake hub assembly Download PDFInfo
- Publication number
- CN107839825A CN107839825A CN201710152677.0A CN201710152677A CN107839825A CN 107839825 A CN107839825 A CN 107839825A CN 201710152677 A CN201710152677 A CN 201710152677A CN 107839825 A CN107839825 A CN 107839825A
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- Prior art keywords
- brake
- drum
- hub assembly
- stopper slot
- cam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L1/00—Brakes; Arrangements thereof
- B62L1/005—Brakes; Arrangements thereof constructional features of brake elements, e.g. fastening of brake blocks in their holders
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a kind of Bicycle expansion brake hub assembly, it is characterised in that it includes flower-drum, some brake scotch, hub spindle, link gear, outer cover plate, return unit, it is using outer cover plate that brake scotch is spacing in the flower-drum of integral type together with link gear, reduce overall volume and make it that structure is more compact, and alleviate weight, facilitate dismounting；Secondly when being braked, using brake scotch, distending brakes to the flower-drum of integral type in the presence of link gear, reduces the loosening skidding that original flower-drum easily occurs due to split settings, is substantially improved on braking effect.
Description
Technical field
The present invention relates to a kind of bicycle part, more particularly to a kind of Bicycle expansion brake hub assembly.
Background technology
With the development of transport facility, bicycle trade makes rapid progress, and people also propose more to the performance of bicycle
High requirement, such as multi-change speed is wanted, bearing capacity is big, and anti-seismic performance is good, durable in use, especially to there is good Brake Energy
Power.Current bicycle main will be braked by brake gear to flower-drum to realize brake process, therefore the braking of bicycle
In front of effect, rear drum be configured with very big contact, but the structure of flower-drum at present is complex, the flower-drum bearing capacity after assembling
It is smaller, cause poor on braking ability.
The content of the invention
It is an object of the invention to provide a kind of compact-sized, preferable Bicycle expansion brake hub assembly of braking effect.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of Bicycle expansion brake hub assembly, including：
Flower-drum, it is made up of floral disc, middle part connecting tube and system drum integral type of stopping；
Some brake scotch, house and be distributed in described stop and make in drum, it is removable and bulging inconsistent with the system of stopping；
Hub spindle, it can relatively rotate through the flower-drum and with flower-drum, the hub spindle both ends are by fastener by institute
Assembly is stated to be fixed on vehicle frame；
Link gear, equally it is contained in described stop and makes in drum, and may act on some brake scotch away from hub spindle axis
Radial distance；
Outer cover plate, the side for being covered in system drum of stopping are used to the brake scotch and link gear being limited in brake system drum；
Return unit, make some brake scotch that there is the synchronous movement tendency collapsed to hub spindle axis direction all the time.
It is using outer cover plate that brake scotch is spacing in integral type together with link gear by using above-mentioned technical proposal
In flower-drum, reduce overall volume and make it that structure is more compact, and alleviate weight, facilitate dismounting；Secondly made
Using brake scotch, distending brakes to the flower-drum of integral type in the presence of link gear when dynamic, reduce original flower-drum by
In the loosening skidding that split settings easily occur, it is substantially improved on braking effect.
Preferably, the link gear includes skeleton, some rollers, rotation cam and the brake being distributed on skeleton
Car spanner, the rotation cam can control some rollers to leave the generation radial displacement of hub spindle axis, the roller and brake scotch
Inner side it is inconsistent all the time, wherein brake spanner be connected with rotation cam, when to brake spanner force one brake force when described in
Brake scotch and system drum of stopping are inconsistent.
By using above-mentioned technical proposal, using braking, the brake force of application is delivered in rotation cam by spanner, is rotated
Cam is rotated, while promotes roller to move radially, and utilizes moving radially so that some brake scotch are outwards swollen for roller
Open conflict to be braked to system drum of stopping, each accessory detachably assembles, and is convenient for changing.
Preferably, the skeleton includes chassis and on the side end face of chassis one and circumferential uniform limited block,
The regulating tank for housing roller is formed between adjacent two limited block, the is offered on the end face raised departing from limited block
One noise reduction groove, the chassis middle part offer through hole, abutting part are provided with the through hole, the rotation cam is arranged on abutting
In portion, the positioning hole worn for hub spindle is offered in the middle part of the abutting part.
By using above-mentioned technical proposal, through hole undergauge that the setting of abutting part will be originally opened in the middle part of chassis, take and
Instead of worn using the abutting part middle aperture positioning hole smaller compared to through hole for hub spindle, improve the installation accuracy to hub spindle
It is required that reducing radial-play, axiality when installing between flower-drum is also improved in addition, reduces and rocks；Secondly abutting part is utilized
The spacing axial movement of rotation cam side, facilitates the installation of rotation cam；And the first drop opened up on limited block
Groove of making an uproar reduces the manufacturing cost of skeleton first, also reduce with stop system drum contact area, reduce both friction when
Noise.
Preferably, it is connected between the abutting part and chassis by the circumferentially uniform contiguous block of polylith, adjacent two connect
Connect and form the second noise reduction groove between block；The contiguous block corresponds to the position of limited block, and one end is connected with limited block, the other end
It is connected with abutting part, wherein being arranged to arcwall face departing from the end face of limited block.
By using above-mentioned technical proposal, contiguous block also enhances limit in addition to playing a part of connecting abutting part and chassis
The effect of the intensity of position block and abutting part, stability of the flower-drum in rotation process middle skeleton is improved, and connected using adjacent two
The noise that the second noise reduction groove formed between block is connect when further reducing braking.
Preferably, the rotation cam, which includes the connecting portion being distributed up and down and cam part, the connecting portion, includes
Circumferential uniform the first projection on the outer wall, the first stopper slot is formed between adjacent two first projection, the brake spanner includes
Terminal pad and rotating turret, the terminal pad offer the mounting hole housed for connecting portion, circumferential on the inwall of the mounting hole
It is evenly equipped with the second projection and the second stopper slot for interlocking with the first projection and the first stopper slot and engaging.
By using above-mentioned technical proposal, it is connected together using first, second projection and interlocking for first, second stopper slot
Both mode causes brake spanner to realize synchronous axial system with rotation cam, and both installation accuracies are higher, and can conveniently realize
Unloading process, it is compact-sized.
Preferably, there is cascaded surface, the terminal pad is connected to described rank between the connecting portion and cam part
The upper surface of some rollers is covered on tread and partly, wherein the cam part includes circumferential be distributed on rotation cam outer wall
Cam and the brake release groove that is formed between two adjacent cams.
By using above-mentioned technical proposal, cascaded surface uses as the locating surface of brake spanner, in further convenient brake
The installation of car spanner and the further lifting of installation accuracy, the cam and brake release groove energy secondly set in cam part
Realize that the batch (-type) of roller moves radially.
Preferably, the 3rd stopper slot for rotating turret rotation, the brake spanner are further opened with the outer cover plate
On be additionally provided with all the time have toward release the side direction movement tendency of brake force one torsion spring；It is further fixed on the outer cover plate dust-proof
Lid, the dust cap have a lug boss, and the lug boss is formed to be formed with outer cover plate and passed for rotating turret part and rotation-limited
4th stopper slot of the frame anglec of rotation.
By using above-mentioned technical proposal, outer cover plate moves axially as the side of spacing link gear and brake scotch
Accessory is used, and dust cap is arranged on outside the connection fixing for improving outer cover plate, moreover it is possible to prevents impurity from entering inside outer cover plate；
Secondly outer cover plate and the 3rd stopper slot on dust cap and the 4th stopper slot have combined the anglec of rotation of rotating turret spacing, with
Rotation cam, which coordinates, plays more preferable braking effect.
Preferably, the outer wall of the brake scotch offers the 5th stopper slot, and the return unit hooks together mutually for head and the tail
And extension spring annular in shape, the extension spring are fastened in the 5th stopper slot of some brake scotch.
By using above-mentioned technical proposal, in braking reset, some brake scotch are inwardly carried out using the elastic force of return unit
Collapse and reset, and the extension spring that return unit is hooked together using head and the tail so that the elastic force that each brake scotch is subject to is uniform, can realize some
The synchronous reset of brake scotch, effectively prevent the polylith brake scotch in releasing of brake causes partial brake because restoring force is uneven
Situation about watt also being contradicted with flower-drum occurs, and reduces the noise duration after brake.
Preferably, described one end for stopping system drum offers breaker slot, and restraining position ring block is set in the breaker slot, described
It is additionally provided with breaker slot and contains an iron hoop, the link gear is contained in the iron hoop, and the iron hoop includes being connected to system
Position-arresting disk on dynamic groove bottom land, the position-arresting disk offer the slot to make way housed for spacing ring, opened on the inwall of the breaker slot
Provided with the first non-slip texture, the second non-slip texture to be contradicted each other with the first non-slip texture is provided with the outer wall of the iron hoop..
By using above-mentioned technical proposal, the setting substitution system of stopping of iron hoop is roused carries out rubs mutually process with brake scotch, carries
The service life of high flower-drum, and using the movement of limiting iron ring diametrically that mutually fastens of spacing ring and slot to make way, coordinate the
The rotation of spacing iron hoop in the circumferential of contradicting each other of one non-slip texture and the second non-slip texture.
Preferably, the floral disc in system drum of stopping with being separately installed with clutch shaft bearing and second bearing, the hub spindle
It is arranged in respectively in clutch shaft bearing and second bearing.
By using above-mentioned technical proposal, caused sliding friction using first, second bearing between hub spindle and flower-drum
It is changed into rolling friction, reduces relative wear between the two, improve service life.
In summary, the invention has the advantages that：
1st, it is more compact by the way that brake scotch and link gear are housed in the flower-drum of integral type into the whole brake structure that rises；
2nd, improve the installation accuracy of hub spindle by the abutting part that is set in the middle part of skeleton, and using the first noise reduction groove opened up with
And noise during the second noise reduction groove reduction braking, pass through in outside and regard the extension spring of the mutual hook of head and the tail as answering for some brake scotch
Position part so that brake scotch stress when resetting is more uniformly distributed, and shortens the noise duration after braking；
3rd, by brake spanner and the split type setting of rotation cam, it is easy to dismount, and utilizes outer cover plate and the on dust cap
The combination of three stopper slots and the 4th stopper slot limits the axial movement of brake spanner, and limits the maximum rotation of brake spanner
Angular range so that more stable in braking.
Brief description of the drawings
Fig. 1 is the exploded perspective view of Bicycle expansion brake hub assembly in embodiment one；
Fig. 2 is the front view that Bicycle expansion brake hub always pacifies during into mounted in vehicle frame in embodiment one；
Fig. 3 is arranged on side view during vehicle frame for Bicycle expansion brake hub assembly in embodiment one；
Fig. 4 is the side view of flower-drum in embodiment one；
Fig. 5 is the sectional view of flower-drum in embodiment one；
Fig. 6 is the positive structural representation of the middle skeleton of embodiment one；
Fig. 7 is the structural representation at the middle skeleton back side of embodiment one；
Fig. 8 is the side view of the middle skeleton of embodiment one；
Fig. 9 is the structural representation of brake scotch in embodiment one；
Figure 10 is the front view of return unit in embodiment one；
Figure 11 is rotation cam and the decomposing schematic representation of brake spanner in embodiment one；
Figure 12 is that spanner is braked in embodiment one in outer cover plate and dust cap spacing schematic diagram between the two；
Figure 13 is outer cover plate and the schematic diagram after the installation of skeleton between the two in embodiment one；
Figure 14 is schematic diagram of the torsion spring between outer cover plate and brake spanner after installation in embodiment one；
Figure 15 is the schematic view of the mounting position braked in embodiment one between spanner and roller；
State diagram when Figure 16 is the total normally travel of Bicycle expansion brake hub in embodiment one；
Figure 17 is state diagram when Bicycle expansion brake hub is always braked in embodiment one；
Figure 18 is the fixation schematic diagram between outer cover plate and vehicle frame in embodiment two；
Figure 19 is the connection diagram of multistage flying wheel and flower-drum.
In figure：1st, skeleton；11st, chassis；12nd, limited block；13rd, regulating tank；14th, abutting part；141st, positioning hole；15th, connect
Block；16th, the second noise reduction groove；17th, steady pin；18th, arcwall face；19th, the first noise reduction groove；2nd, brake scotch；21st, the 5th stopper slot；22、
Arc-shaped limit block；23rd, the 6th stopper slot；24th, spigot surface；3rd, rotation cam；31st, connecting portion；311st, the first projection；312nd, first
Stopper slot；32nd, cam part；321st, cam；322nd, brake release groove；33rd, cascaded surface；4th, roller；5th, brake spanner；51st, even
Connect disk；511st, mounting hole；512nd, the second projection；513rd, the second stopper slot；52nd, rotating turret；521st, fixing hole；522nd, line ball spiral shell
Nail；523rd, locking nut；6th, return unit；61st, first hook；62nd, pintle；7th, flower-drum；71st, floral disc；711st, floral disc external screw thread；72nd, in
Portion's connecting tube；73rd, system of stopping drum；731st, breaker slot；732nd, spacing ring；733rd, the first non-slip texture；734th, second boss；74th, bore
Shape platform；75th, iron hoop；751st, position-arresting disk；752nd, slot to make way；753rd, the second non-slip texture；754th, first boss；76th, bearing is spacing
Groove；8th, outer cover plate；81st, brake bracket；82nd, clip；83rd, line screw is crossed；84th, fixing groove；85th, the 3rd stopper slot；86th, spacing pressure
Block；87th, fixed spring；88th, torsion spring；9th, dust cap；91st, lug boss；92nd, the 4th stopper slot；10th, hub spindle；10a, flange spiral shell
It is female；10b, clamp nut；10c, the first pad；10d, sleeve pipe；10e, the second pad；10f, outer cover plate fixed cover；101st, first
Bearing；102nd, second bearing；200th, chain stay；300th, brake cable；400th, vehicle frame；410th, fixed seat；411st, spacing socket；
500th, multistage flying wheel；510th, flywheel internal thread.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
Embodiment one
Referring to Fig. 1, a kind of Bicycle expansion brake hub is total, including the flower-drum 7 of integral type and the hub spindle that is arranged in flower-drum 7
10, relative rotation occurs relative to hub spindle 10 for flower-drum 7.
With reference to Fig. 1, Fig. 4 and Fig. 5, flower-drum 7 is made up of aluminium or iron, it is preferred to use and aluminium is made to reduce overall weight, its
Floral disc 71 including both sides, the middle part connecting tube 72 of stop both drum 73 processed and connection.Floral disc 71 is respectively provided with convex with brake drum 73
Edge is used for the connection of spoke, offers breaker slot 731 on the end face in drum 73 processed of stopping, iron hoop is provided with breaker slot 731
75, the bottom land middle part of breaker slot 731 is provided with the spacing ring 732 of projection, and the outer wall of spacing ring 732 is provided with spline；Iron hoop 75
Including the position-arresting disk 751 abutted against with the bottom land of breaker slot 731, the middle part of position-arresting disk 751 offers to be allowed for what spacing ring 732 housed
Position groove 752；First non-slip texture 733 on the inwall of breaker slot 731, iron hoop 75 are provided with the second non-slip texture 753 on its external wall,
When iron hoop 75 is installed in breaker slot 731, the first non-slip texture 733 and the second non-slip texture 753 contradict each other and cause iron hoop 75
It can obtain in the circumferential spacing.In addition the thickness of position-arresting disk 751 causes iron hoop 75 being made after installing equal to the thickness of spacing ring 732
Male and fomale(M＆F) will not be formed in dynamic groove 731.
In addition, also including axial limiting portion between iron hoop 75 and brake drum 73, the axial limiting portion, which includes, is arranged on iron
First boss 754 on the outer wall of ring 75 and the second boss 734 being arranged in the side wall of breaker slot 731, second boss 734 is just
It is fastened on the upper surface of first boss 754 so that iron hoop 75 is able to spacing in the axial direction.Iron hoop 75 enters at overheat in a pre-installation
Reason is improved wearability and is installed to using the mode expanded with heat and contract with cold in brake drum 73.
Brake apparatus is installed in iron hoop 75, if the brake apparatus includes the uniform brake scotch 2 of some circumferences and set
The link gear at the dry middle part of brake scotch 2.Link gear includes a skeleton 1, some rollers 4, body rotation cam 3 and brake spanner
5。
Referring to Fig. 6 and Fig. 7, skeleton 1 is made up of aluminium alloy, includes the chassis 11 of a circle and is arranged on chassis 11 1
Some limited blocks 12 on side end face, the first noise reduction groove 19 is offered departing from the end face of projection in limited block 12.Chassis 11
Middle part there is a through hole, some limited blocks 12 are uniform in the circumferential around the through hole, and are formed between adjacent two limited block 12
One regulating tank 13 for housing roller 4, the certain radial distance of directional sliding in regulating tank 13 of roller 4.
An abutting part 14 in a ring is provided with the central through hole on chassis 11, the abutting part 14 is by being distributed on periphery wall
On contiguous block 15 be connected with chassis 11, the positioning hole 141 with the coaxial line of chassis 11 is offered at the center of abutting part 14, connect
The quantity of block 15 is just identical with the quantity of limited block 12 and set location is corresponding, and one the is formed between adjacent two contiguous block 15
Two noise reduction grooves 16.Wherein contiguous block 15 is arranged to arcwall face 18 in the side end face departing from limited block 12, the arcwall face 18
While it is connected with the end face of abutting part 14.In addition steady pin 17 is additionally provided with the end face of a limited block 12 wherein.
Referring to Fig. 8, the integral thickness of abutting part 14 is greater than the thickness on chassis 11, and departing from being provided with the one of limited block 12
End face will be above the end face on chassis 11, and between the two with height difference H, the height difference H is between 1 ~ 2mm.
Referring to Figure 11, rotation cam 3 is generally cylindrical, and it includes the connecting portion 31 being distributed up and down and cam part 32, its
Middle connecting portion 31 is used to be connected with brake spanner 5, and cam part 32 is used to be driven, and both junctions form a cascaded surface
33.Described connecting portion 31 includes the first some projection 311 for being distributed on the periphery wall of rotation cam 3 and is formed at two the
The first stopper slot 312 between one projection 311；Cam part 32 includes the cam 321 being equally distributed on the periphery wall of rotation cam 3
And the brake release groove 322 between two cams 321 is formed at, wherein first both setting positions of cam 321 and cam 321
Put, and the first stopper slot 312 interpenetrates with brake release groove 322.
Brake spanner 5 includes terminal pad 51 and rotating turret 52, and terminal pad 51 offers one and is available for rotation cam 3 to pass through
Mounting hole 511, be evenly equipped with the inwall of mounting hole 511 with the second projection of quantity identical 512 of the first projection 311, it is adjacent
Form the second stopper slot 513 between two second projections 512, the connecting portion 31 of rotation cam 3 is housed in mounting hole 511 during installation
It is interior, and the lower surface for the spanner 5 that brakes is contradicted on cascaded surface 33, while some second projections 512 and second in mounting hole 511
In the first projection 311 being fastened on connecting portion 31 and the first stopper slot 312 that stopper slot 513 interlocks, brake spanner 5 turns
The dynamic rotation that can drive rotation cam 3 simultaneously.
The end of rotating turret 52 is equipped with a line pressing bolt 522 and the locking screw being threadedly coupled with line pressing bolt 522
Mother 523, and offer a fixing hole 521 on the connection end of rotating turret 52 and terminal pad 51.
Referring to Fig. 9 and Figure 10, all brake scotch 2, which enclose, can form an annulus, and be opened up on the outer wall of each brake scotch 2
There is the 5th stopper slot 21, some brake scotch 2 have to contract all the time by being embedded the return unit 6 in the 5th stopper slot 21
Movement tendency.
The return unit 6 has the extension spring of a first pintle 62 of hook 61 and one from both ends respectively, passes through both mutual hooks
An annulus is encircled into, extension spring can change different rigidity according to different automobile types.The groove of the 5th stopper slot 21 on every piece of brake scotch 2
Bottom is curved, and it just matches with bottom land after extension spring is fastened on the 5th stopper slot 21, in addition the groove of the 5th stopper slot 21
Depth is greater than or the diameter equal to extension spring so that can not be spun off after extension spring engaging out of the 5th stopper slot 21.
The arc-shaped limit block 22 of two certain angular intervals is additionally provided with the intrados of brake scotch 2, is limited along each arc
The axial direction of position block 22 offers the 6th stopper slot 23 of insertion, and the left and right sides of the 6th stopper slot 23 is formed by chamfering to be oriented to
Face 24.
Referring to Fig. 1, the openend of breaker slot 731 is closed for 8 by an outer cover plate, and above-mentioned brake apparatus is consolidated
Fixed, one end of hub spindle 10 is tentatively compressed through outer cover plate 8 by outer cover plate fixed cover 10f, in the side of outer cover plate 8
A dust cap 9 is additionally provided with, one end of same hub spindle 10 passes through the dust cap 9, using two clamp nut 10b to dust cap
9 are fixed while fix outer cover plate 8.
Referring to Fig. 6 and Figure 12, fixing groove 84 is offered on outer cover plate 8, the fixing groove 84 is available for steady pin 17 to pass through, in addition
The 3rd stopper slot 85 is further opened with outer cover plate 8, the 3rd stopper slot 85 is so that rotating turret 52 is obtained through and rotation-limited
The anglec of rotation of frame 52.There is dust cap 9 lug boss 91, the lug boss 91 to form the 4th stopper slot after coordinating with outer cover plate 8
92, the 4th stopper slot 92 can allow rotating turret 52 to pass, and the anglec of rotation of further rotation-limited frame 52.
Referring to Figure 13, three uniform spacing briquettings 86 are also convexed to form by the convex side of skeleton 1 that presses on outer cover plate 8,
Some spacing briquettings 86 are connected on the limited block 12 of skeleton 1 with the radial motion of spacing skeleton 1 respectively.
Referring to Figure 11, Figure 12 and Figure 14, fixed spring 87 is additionally provided with steady pin 17, the one end of fixed spring 87 twines
It is wound on steady pin 17, the other end is hooked in fixing groove 84, and then make it that skeleton 1 is fixed with outer cover plate 8.Hub spindle 10
On be additionally provided with torsion spring 88, one end of the torsion spring 88 is hooked together in the 3rd stopper slot 85, and the other end is located in consolidating for rotating turret 52
Determine in hole 521 so that rotating turret 52 has the movement tendency toward brake release side all the time.
Referring to Fig. 1 and Fig. 5, bearing stopper slot 76, each axle are offered on the axis hole of floral disc 71 and drum 73 processed of stopping
Holding and clutch shaft bearing 101 and second bearing 102 are separately installed with stopper slot 76, hub spindle 10 is arranged in two bearings successively,
Being abutted on the end face of clutch shaft bearing 101 has the second pad, and spacing to clutch shaft bearing 101 also with two clamp nut 10b,
Sleeve pipe 10d is also set up between two clamp nut 10b to adjust two clamp nut 10b relative distance.
Referring to Fig. 1 to Fig. 3, whole assembly is fixed on vehicle frame 400 by the flange nut 10a at the both ends of hub spindle 10, and
Fixing when improving fixed using the first pad abutted against with vehicle frame 400, outer cover plate 8 have a brake bracket 81, the braking
One end of frame 81 is provided with a clip 82, and the clip 82 is fastened in chain stay 200 so that whole assembly is fixed more firm
Lean on, be also equipped with one on brake bracket 81 in addition and cross line screw 83, brake cable 300 may pass through this and cross line screw 83 and rotating turret
52 connections.
Referring to Fig. 9, Figure 11 and Figure 15, the part terminal pad 51 on spanner 5 of braking is covered in the upper end surface of roller 4, made
Roller 4 be able in the axial direction it is spacing.Simultaneously in normal driving process the outer wall of roller 4 it is spacing in the 6th stopper slot 23 and
In brake release groove 322 so that roller 4 is able to spacing in the circumferential, and is deposited between the inwall of some brake scotch 2 and iron hoop 75
In spacing.
With reference to Figure 16 and Figure 17, when braking, artificially pull brake cable 300 while brake handle to be pulled, brake
Line 300 drives brake spanner 5 to be rotated, and brake spanner 5 can drive rotation cam 3 to be rotated when rotating, to rotation cam 3
When rotating to an angle, some cams 321 extrude the roller 4 of correspondence position so that if roller 4 is gradually extended out while promoted drying
Dynamic watt 2 distendings, rotation cam 3 continue to rotate some rollers 4 radially sliding apart from constantly increase, brake scotch in regulating tank 13
2 distending amplitudes incrementally increase, and are braked when brake scotch 2 is inconsistent with the madial wall of iron hoop 75 that is in rotation process,
Brake process is completed until flower-drum 7 stops operating；After brake handle unclamps, brake spanner 5 can reset in the effect of torsion spring 88,
Rotation cam 3 is turned round, and some brake scotch 2 inside retracted for clearance and promote roller 4 to reset in the presence of extension spring, roller 4
It is last and spacing arrived in brake release groove 322.
Embodiment two
Referring to Figure 18, the outer cover plate 8 of embodiment one and the fixed form of vehicle frame 400 are different from, is pacified on vehicle frame 400 by fastener
Equipped with fixed seat 410, limited location socket 411 is opened up on one end of fixed seat 410, the brake bracket 81 on outer cover plate 8 can be inserted into
In to spacing socket 411 and then realize that circumferentially rotating for outer cover plate 8 is spacing, the fixed form operation is relatively simple.
Embodiment three
Referring to Figure 19, whole expansion brake hub assembly also includes multistage flying wheel 500, and the middle part of multistage flying wheel 500 is offered in flywheel
Screw thread 510, is provided with floral disc external screw thread 711 on the end of floral disc 71, and multistage flying wheel 500 passes through spiral shell when being fixed with flower-drum 7
Line connected mode is fixed.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but as long as at this
All protected in the right of invention by Patent Law.
Claims (10)
- A kind of 1. Bicycle expansion brake hub assembly, it is characterised in that including：Flower-drum（7）, by floral disc（71）, middle part connecting tube（72）And system drum of stopping（73）Integral type is formed；Some brake scotch（2）, house and be distributed in the system drum of stopping（73）It is interior, it may move and roused with the system of stopping（73）It is inconsistent；Hub spindle（10）, through the flower-drum（7）And can be with flower-drum（7）Relatively rotate, the hub spindle（10）Both ends The assembly is fixed on by vehicle frame by fastener（400）On；Link gear, equally it is contained in the system drum of stopping（73）It is interior, and may act on some brake scotch（2）Away from hub spindle （10）The radial distance of axis；Outer cover plate（8）, it is covered in brake system drum（73）Side be used for the brake scotch（2）And link gear is limited in brake system Drum（73）It is interior；Return unit（6）, make some brake scotch（2）All the time with synchronous to hub spindle（10）The motion that axis direction collapses becomes Gesture.
- 2. Bicycle expansion brake hub assembly according to claim 1, it is characterised in that the link gear includes skeleton （1）, be distributed on skeleton（1）On some rollers（4）, rotation cam（3）And brake spanner（5）, the rotation cam（3）Can Control some rollers（4）Leave hub spindle（10）Radial displacement, the roller occur for axis（4）With brake scotch（2）Inner side begin Last phase contradicts, wherein the spanner that brakes（5）With rotation cam（3）Connection, when to the spanner that brakes（5）Described in during the brake force that exerts a force Brake scotch（2）With system drum of stopping（73）It is inconsistent.
- 3. Bicycle expansion brake hub assembly according to claim 2, it is characterised in that the skeleton（1）Including chassis （11）And located at chassis（11）On one side end face and circumferential uniform limited block（12）, adjacent two limited block（12）Between formed For housing roller（4）Regulating tank（13）, departing from limited block（12）The first noise reduction groove is offered on raised end face （19）, the chassis（11）Middle part offers through hole, and abutting part is provided with the through hole（14）, the rotation cam（3）If Put in abutting part（14）On, the abutting part（14）Middle part offer for hub spindle（10）The positioning hole worn（141）.
- 4. Bicycle expansion brake hub assembly according to claim 3, it is characterised in that the abutting part（14）With chassis （11）Between pass through the circumferentially uniform contiguous block of polylith（15）It is connected, adjacent two contiguous block（15）Between form the second noise reduction groove （16）；The contiguous block（15）Corresponding to limited block（12）Position, and one end and limited block（12）Connection, the other end is with abutting Portion（14）It is connected, wherein departing from limited block（12）End face be arranged to arcwall face（18）.
- 5. Bicycle expansion brake hub assembly according to claim 2, it is characterised in that the rotation cam（3）Including upper The connecting portion of lower distribution（31）And cam part（32）, the connecting portion（31）Including circumferential uniform the first projection on the outer wall （311）, adjacent two first projection（311）Between form the first stopper slot（312）, the brake spanner（5）Including terminal pad （51）And rotating turret（52）, the terminal pad（51）Offer and supply connecting portion（31）Accommodating mounting hole（511）, the installation Hole（511）Inwall on be circumferentially evenly equipped with and the first projection（311）And first stopper slot（312）The second projection staggeredly engaged （512）And second stopper slot（513）.
- 6. Bicycle expansion brake hub assembly according to claim 5, it is characterised in that the connecting portion（31）With cam part （32）Between there is cascaded surface（33）, the terminal pad（51）It is connected to described cascaded surface（33）It is covered in above and partly some Roller（4）Upper surface, wherein the cam part（32）Rotation cam is distributed on including circumferential（3）Cam on outer wall（321） And it is formed at two adjacent cams（321）Between brake release groove（322）.
- 7. Bicycle expansion brake hub assembly according to claim 5, it is characterised in that the outer cover plate（8）On also open up Have and supply rotating turret（52）3rd stopper slot of rotation（85）, the brake spanner（5）On be additionally provided with all the time have toward release make The torsion spring of the side direction movement tendency of power one（88）；The outer cover plate（8）On be further fixed on dust cap（9）, the dust cap（9） With lug boss（91）, the lug boss（91）With outer cover plate（8）Composition forms and supplies rotating turret（52）Part passes and spacing turn Moving frame（52）4th stopper slot of the anglec of rotation（92）.
- 8. Bicycle expansion brake hub assembly according to claim 1, it is characterised in that the brake scotch（2）Outer wall open Provided with the 5th stopper slot（21）, the return unit（6）To hook together mutually from beginning to end and extension spring annular in shape, if the extension spring is fastened on Dry brake scotch（2）The 5th stopper slot（21）It is interior.
- 9. Bicycle expansion brake hub assembly according to claim 1, it is characterised in that the system drum of stopping（73）One end open Provided with breaker slot（731）, the breaker slot（731）Interior setting restraining position ring block（732）, the breaker slot（731）Inside it is additionally provided with Contain an iron hoop（75）, the link gear is contained in the iron hoop（75）It is interior, the iron hoop（75）Including being connected to breaker slot （731）Position-arresting disk on bottom land（751）, the position-arresting disk（751）Offer and supply spacing ring（732）Accommodating slot to make way（752）, The breaker slot（731）Inwall on offer the first non-slip texture（731）, the iron hoop（75）Outer wall on be provided with and the One non-slip texture（731）The second non-slip texture to contradict each other（753）.
- 10. Bicycle expansion brake hub assembly according to claim 1, it is characterised in that the floral disc（71）With system drum of stopping （73）Inside it is separately installed with clutch shaft bearing（101）With second bearing（102）, the hub spindle（10）Clutch shaft bearing is arranged in respectively （101）With second bearing（102）It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710152677.0A CN107839825B (en) | 2017-03-15 | 2017-03-15 | Bicycle expansion brake hub assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710152677.0A CN107839825B (en) | 2017-03-15 | 2017-03-15 | Bicycle expansion brake hub assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107839825A true CN107839825A (en) | 2018-03-27 |
| CN107839825B CN107839825B (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710152677.0A Active CN107839825B (en) | 2017-03-15 | 2017-03-15 | Bicycle expansion brake hub assembly |
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| Country | Link |
|---|---|
| CN (1) | CN107839825B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679202A (en) * | 2018-06-20 | 2018-10-19 | 唐泽制动器(天津)有限公司 | A kind of speed changer brake disc assembly |
| CN111605521A (en) * | 2019-02-23 | 2020-09-01 | 河南卓安伟业智能科技有限公司 | Automobile active anti-collision auxiliary brake device |
| WO2023168795A1 (en) * | 2022-03-07 | 2023-09-14 | 唐泽交通器材(泰州)有限公司 | Clutch type expansion brake for bicycle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108679202A (en) * | 2018-06-20 | 2018-10-19 | 唐泽制动器(天津)有限公司 | A kind of speed changer brake disc assembly |
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| WO2023168795A1 (en) * | 2022-03-07 | 2023-09-14 | 唐泽交通器材(泰州)有限公司 | Clutch type expansion brake for bicycle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107839825B (en) | 2023-04-07 |
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