CN103303061B - Bicycle expansion brake hub assembly - Google Patents
Bicycle expansion brake hub assembly Download PDFInfo
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- CN103303061B CN103303061B CN201310168122.7A CN201310168122A CN103303061B CN 103303061 B CN103303061 B CN 103303061B CN 201310168122 A CN201310168122 A CN 201310168122A CN 103303061 B CN103303061 B CN 103303061B
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Abstract
A kind of Bicycle expansion brake hub assembly, comprise flower-drum, axis, flower-drum is made up of axle skin and floral disc, one end of flower-drum is provided with brake assemblies, brake assemblies is by the block that rises, roller skeleton, Internal baffle, outer cover plate, retracing spring, torsion spring and brake tile composition, brake tile is around the inner wall even distribution of floral disc housing, roller skeleton is provided with break slot, in break slot, roller is housed, Internal baffle and outer cover plate are set on the homalocephalus of pillow block both sides, the block that rises is hexagon, the block that rises is inlaid in the inner chamber of roller skeleton, the rise outside of block is connected with end plate, end plate is provided with brake spanner, outer cover plate is arranged in the outside of the block that rises, torsion spring is arranged between end plate outside the block that rises and outer cover plate, retracing spring hoop is in the arc groove of brake tile cylindrical.This product with compact structure, overall solid and reliable, resistance to compression is shockproof, and bearing capacity is large, and deceleration and stopping performance is good, not fragile, durable in use, can use as front flower-drum or rear drum.
Description
Technical field
The invention belongs to bicycle part field, specifically, relate to bicycle drive shaft assembly structure.
Background technology
Along with the development of transport facility, bicycle trade makes rapid progress, new product is all many, bicycle has been become a kind of fashion sports equipment of today by walking-replacing tool in the past, people also propose higher requirement to the performance of bicycle, such as want multi-change speed, bearing capacity is large, anti-seismic performance is good, durable in use, especially good braking potential to be had, the various premium properties of bicycle and its before, rear drum be configured with very large relation, before traditional bicycle, rear drum is primarily of pearl bowl, steel ball, axle bumper, nut, axostylus axostyle forms, major defect is: part is loose, overall insecure after assembling, fragile, poor seismic behavior, bearing capacity is little, poor stop, therefore anxious to be modified.
Summary of the invention
For solving the problem, the object of this invention is to provide a kind of Bicycle expansion brake hub assembly, be made up of several simple part, compact conformation, overall solid and reliable, resistance to compression is shockproof, and bearing capacity is large, and deceleration and stopping performance is good, not fragile, durable in use, can use as front flower-drum or rear drum, and wheel can be realized change rapidly.
For achieving the above object, the present invention is by the following technical solutions:
A kind of Bicycle expansion brake hub assembly, comprise flower-drum, axis, flower-drum is made up of axle skin and the floral disc being fixed in axle skin two ends, axis is supported by the bearing of flower-drum inside, it is characterized in that: in one end of flower-drum, brake assemblies is installed, brake assemblies is by the block that rises, roller skeleton, Internal baffle, outer cover plate, retracing spring, torsion spring and brake tile composition, brake tile is circular arc, brake tile has polylith, these brake tiles are circumferential uniform around the inwall of floral disc housing, roller skeleton is arranged in the inner side of brake tile, roller skeleton is petal, roller skeleton is provided with six break slots, a columniform roller is housed in each break slot, one end of axis arranges pillow block, the both sides of pillow block are respectively arranged with a homalocephalus and No. two homalocephalus, the centre hole of Internal baffle is with flat mouth, Internal baffle is sleeved on a homalocephalus of pillow block by centre hole, the side of Internal baffle is resisted against on the shaft shoulder inside pillow block, the inner of roller skeleton is resisted against on the side of Internal baffle, the block that rises is hexagon, the block that rises is inlaid in the inner chamber of roller skeleton, the rise outside of block is connected with end plate, this end plate is provided with brake spanner, the block that rises is sleeved on the pillow block of axis by centre hole, outer cover plate is arranged in the outside of the block that rises, outer cover plate is provided with leg, the centre hole of outer cover plate is with flat mouth, outer cover plate is sleeved on No. two homalocephalus of pillow block by centre hole, outer cover plate is resisted against on the shaft shoulder outside pillow block, torsion spring is arranged between end plate outside the block that rises and outer cover plate, one end of torsion spring is fixed on brake spanner, the other end of torsion spring is fixed on outer cover plate, Internal baffle, roller skeleton, connected by fastener between outer cover plate, the cylindrical of brake tile is provided with arc groove, described retracing spring is annular arrangement, retracing spring hoop is in the arc groove of brake tile cylindrical.
The other end of described flower-drum is provided with flywheel assembly, flywheel assembly is made up of fluted disc sleeve, fluted disc, ratchet ring, ratchet, wire spring, ratchet ring is arranged in the centre hole of floral disc, and ratchet is arranged on the end of fluted disc sleeve, and ratchet cylindrical is provided with pawl slot, ratchet is furnished with in pawl slot, ratchet is connected with wire spring, and wire spring is arranged around ratchet cylindrical, and axis runs through fluted disc sleeve, left end spindle nose and the left locknut of axis are spirally connected, and right-hand member spindle nose and the right locknut of axis are spirally connected.
The other end of described flower-drum is provided with flywheel assembly, flywheel assembly is by fluted disc sleeve, fluted disc, ratchet ring, ratchet, wire spring forms, fluted disc sleeve and floral disc one-body molded, ratchet ring is arranged in the centre hole of fluted disc, ratchet is arranged on the inside of ratchet ring, ratchet cylindrical is provided with pawl slot, ratchet is provided with in pawl slot, ratchet is connected with wire spring, wire spring is arranged around ratchet cylindrical, the centre hole of ratchet is screwed together by screw thread and fluted disc sleeve, axis runs through fluted disc sleeve, left end spindle nose and the left locknut of axis are spirally connected, right-hand member spindle nose and the right locknut of axis are spirally connected.
Described axis is made up of hollow tubular, axle core bar has been placed in axis inner chamber, the left end of flower-drum is provided with a preloading spring and block nut, the right-hand member of flower-drum is provided with No. two preloading springs and pad, the left end spindle nose of axle core bar is spirally connected with block nut through after a preloading spring, and the right-hand member spindle nose of axle core bar is through affixed with handle after No. two preloading springs, pad.
Described floral disc is connected with axle skin by friction tight mode.
Described floral disc is connected with axle skin by the mode be spirally connected.
Described floral disc is connected with axle skin by bonding mode.
The outer rim of described outer cover plate is provided with flange, and the middle part of outer cover plate is provided with annular boss, and flange and annular boss are formed spacing to torsion spring.
Innovation of the present invention is:
Adopt brand-new brake structure, to rise lock and flower-drum combines cleverly, compact conformation, overall solid and reliable, resistance to compression is shockproof, bearing capacity is large, deceleration and stopping performance is good, can realize single-direction transmission, can use as front flower-drum or rear drum, multi-change speed fluted disc can be installed, and wheel can be realized change rapidly.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention one.
Fig. 2 is the back view of Fig. 1.
Fig. 3 is the part sectional view of Fig. 1.
Fig. 4 is the front elevation of Fig. 3.
Fig. 5 is the cutaway view of Fig. 1.
Fig. 6 is the A-A cutaway view of Fig. 5.
Fig. 7 is the B-B cutaway view of Fig. 5.
Fig. 8 is the structural representation of fluted disc sleeve.
Fig. 9 is the exploded drawings of Fig. 1.
Figure 10 is the exploded drawings of Fig. 2.
Figure 11 is the structural representation of brake assemblies.
Figure 12 is the back view of Figure 11.
Figure 13 is the exploded drawings of Figure 11.
Figure 14 is the exploded drawings of Figure 12.
Figure 15 is the structural representation installing fluted disc embodiment illustrated in fig. 1.
Figure 16 is the exploded drawings of Figure 15.
Figure 17 is the structural representation of the embodiment of the present invention two.
Figure 18 is the structural representation installing fluted disc embodiment illustrated in fig. 17.
Figure 19 is the exploded drawings of Figure 18.
Figure 20 is the exploded drawings of flywheel assembly in Figure 18.
Figure 21 is the inner structure schematic diagram of flywheel assembly in Figure 18.
Figure 22 is the part sectional view of Figure 17.
Figure 23 is the front elevation of Figure 22.
Figure 24 is the using state schematic diagram of the embodiment of the present invention one.
Figure 25 is the back view of Figure 24.
Figure 26 is the structural representation installing fluted disc embodiment illustrated in fig. 24.
Figure 27 is the structural representation of the embodiment of the present invention three.
Figure 28 is the structural representation of the embodiment of the present invention four.
Figure 29 is the front elevation of Figure 28.
Figure 30 is the cutaway view of Figure 28.
Figure 31 is the front elevation of Figure 30.
Figure 32 is the structural representation of the embodiment of the present invention five.
Detailed description of the invention
Number in the figure
No. 1 bearings 2 No. two bearings 3 No. three bearings
4 No. four bearing 5 spoke 6 axis
The right floral disc of 7 axle skin 8 left floral disc 9
10 flower-drum 11 rise block 12 roller skeleton
13 Internal baffle 14 outer cover plate 15 retracing springs
16 torsion spring 17 brake tile 18 break slots
19 roller 20 brake assemblies 21 end plates
The flat mouth of 22 brake spanner 23 flat mouth 24
25 bolt fastener 26 bolt fastener 27 arc grooves
28 wear cylindrical void 29 wears cylindrical void 30 pillow block
31 fluted disc sleeve 32 fluted disc 33 ratchet rings
34 ratchet 35 wire spring 36 pawl slots
37 ratchet 38 left end spindle nose 39 right-hand member spindle noses
40 No. 41 1, leg preloading springs, 42 No. two preloading springs
43 block nut 44 axle core bar 45 pads
46 handle 47 negative thread screw thread 48 left end spindle noses
49 right-hand member spindle nose 50 spoke 51 terminations
52 termination 53 flange 54 annular boss
55 ratchet 56 screw thread 57 screw threads
58 left locknut 59 right locknut 60 axis
61 fluted disc sleeve 62 fluted disc 63 ratchet rings
64 ratchet 65 wire spring 66 pawl slots
67 ratchet 68 left end spindle nose 69 right-hand member spindle noses
70 No. 71 1, end cap homalocephalus, 72 No. two homalocephalus
73 spline 74 spline 75 screw threads
The left locknut of 76 screw thread 77 screw thread 78
79 right locknut 80 housings
Embodiment one
Please refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, Figure 13, Figure 14, Figure 15, Figure 16, the present invention is a kind of Bicycle expansion brake hub assembly, comprises flower-drum 10, brake assemblies 20, flywheel assembly, a bearing 1, No. two bearings 2, axis 6, flywheel assembly and brake assemblies are separately positioned on a left side for flower-drum 10, right two ends, flower-drum 10 is by axle skin 7, left floral disc 8, right floral disc 9 is formed, left floral disc 8, right floral disc 9 is set in a left side for axle skin 7 outer wall, right two ends, left floral disc 8, the outer rim of right floral disc 9 is respectively arranged with and wears cylindrical void 28, 29, the housing 80 of left floral disc 8 is cylindrical shape, a bearing 1, No. two bearings 2 are inlaid in a left side for axle skin 7 inner chamber respectively, right two ends, axis 6 is set in axle skin 7 inner chamber, axis 6 and a bearing 1, the inner ring of No. two bearings 2 becomes flush fit, and brake assemblies 20 is by the block 11 that rises, roller skeleton 12, Internal baffle 13, outer cover plate 14, retracing spring 15, torsion spring 16 and brake tile 17 form, brake tile 17 is circular arc, brake tile 17 has three pieces, these three pieces of brake tiles 17 are uniform around the inwall circumference of left floral disc housing 80, roller skeleton 12 is arranged in the inner side of brake tile 17, roller skeleton 12 is petal, roller skeleton 12 is provided with six break slots 18, a columniform roller 19 is housed in each break slot 18, the left end of axis 6 is provided with pillow block 30, the both sides of pillow block 30 are respectively arranged with a homalocephalus 71 and No. two homalocephalus 72, Internal baffle 13 is sleeved on a homalocephalus 71 by centre hole, the centre hole of Internal baffle 13 is with flat mouth 23, when Internal baffle 13 is sleeved on after on a homalocephalus 71, coordinated with a homalocephalus 71 by flat mouth 23, make it can not rotate relative to a homalocephalus 71, the left surface of Internal baffle 13 is resisted against on the shaft shoulder inside pillow block 30, the inner of roller skeleton 12 is resisted against on the left surface of Internal baffle 13, rise by block 11 for hexagon, the block 11 that rises is inlaid in the inner chamber of roller skeleton 12, the rise outside of block 11 is connected with end plate 21, end plate 21 is provided with brake spanner 22, the brake cable of bicycle is made up of heart yearn and crust, heart yearn is made up of steel rope usually, brake spanner 22 is connected with the lower end of heart yearn, the upper end of heart yearn is connected with the brake lever of bicycle, brake lever is hinged on lock seat.
The block 11 that rises is sleeved on the pillow block 30 of axis 6 by centre hole, outer cover plate 14 is arranged on the outside of the block 11 that rises, outer cover plate 14 is sleeved on No. two homalocephalus 72 by centre hole, outer cover plate 14 is resisted against on the shaft shoulder outside pillow block 30, the centre hole of outer cover plate 14 is with flat mouth 24, when outer cover plate 14 is sleeved on after on No. two homalocephalus 72, coordinated with No. two homalocephalus 72 by flat mouth 24, make it can not rotate relative to No. two homalocephalus 72, the cylindrical of outer cover plate 14 is provided with the leg 40 of protrusion, leg 40 is for the crust of fixing brake cable, the lower end of brake cable crust is fixed on leg 40 by fastener, the upper end of brake cable crust is fixed on lock seat by fastener, fastener can be the stud with passing hole, also can be nut or nut, fixed form is prior art.
Between the end plate 21 that torsion spring 16 is arranged on the block 11 that rises and outer cover plate 14, one end 51 of torsion spring 16 is fixed on brake spanner 22, the other end 52 of torsion spring 16 is fixed on outer cover plate 14, the outer rim of outer cover plate 14 is provided with flange 53, the middle part of outer cover plate 14 is provided with annular boss 54, flange 53 and annular boss 54 pairs of torsion springs 16 are formed upper and lower spacing, prevent torsion spring 16 from misplacing and come off.Internal baffle 13, roller skeleton 12, part 25 is fastened by bolts between outer cover plate 14, 26 connect, the cylindrical of brake tile 17 is provided with arc groove 27, retracing spring 15 is annular arrangement, retracing spring 15 binds round in the arc groove 27 of brake tile 17 cylindrical, during brake, the brake lever of bicycle is pinched with hand, brake lever rotates an angle relative to lock seat, play the effect of tractive brake cable heart yearn, now the heart yearn of brake cable drives brake spanner 22 to rotate, the elastic force effect that brake spanner 22 overcomes torsion spring 16 rotates an angle, the block 11 that rises also rotates an angle, owing to rising, block 11 is hexagons, after the block 11 that rises rotates, six rollers 19 are supported on its six summits respectively, roller 19 is to outer displacement, squeeze and push away three pieces of brake tiles 17, brake tile 17 overcomes the effect of retracing spring 15 also to outer displacement, with the contact internal walls of left floral disc housing 80, extrude the inwall of left floral disc housing 80, form friction drag, friction drag is relied on to brake by flower-drum 10, complete brake, when after the brake lever unclamping bicycle, under the elastic force effect of torsion spring 16, brake spanner 22 reverses and resets, at this moment the block 11 that rises also reverses reset, six rollers 19 are no longer supported on rise six summits of block 11, six rollers 19 no longer extrude three pieces of brake tiles 17, three pieces of brake tiles 17 inwardly shrink under the effect of retracing spring 15, no longer with the contact internal walls of left floral disc housing 80, friction drag is removed, brake is released.
Flywheel assembly is by fluted disc sleeve 31, fluted disc 32, ratchet ring 33, ratchet 34, wire spring 35, No. three bearings 3, No. four bearings 4 form, ratchet ring 33 is spirally connected by the negative thread screw thread 57 of outside thread screw thread 56 with the centre hole of right floral disc 9, be adhesively fixed by metal-to-metal adhesive between the outside thread screw thread 56 of ratchet ring 33 and the negative thread screw thread 57 of right floral disc 9 centre hole, ratchet 34 is arranged on the left end of fluted disc sleeve 31, ratchet 34 cylindrical is provided with three pawl slots 36, a ratchet 37 is furnished with in each pawl slot 36, ratchet 37 is connected with wire spring 35, wire spring 35 is arranged around ratchet 34 cylindrical, axis 6 runs through fluted disc sleeve 31, axis 6 and No. three bearings 3, the inner ring of No. four bearings 4 becomes flush fit, left end spindle nose 38 and the left locknut 58 of axis 6 are spirally connected, right-hand member spindle nose 39 and the right locknut 59 of axis 6 are spirally connected, the effect of wire spring 35 makes ratchet 37 remain the trend be upturned.
When to ahead-driving bicycle pedal, fluted disc 32 is with active toothed disk sleeve 31 to rotate, and ratchet 37 is the ratchet 55 of pushing tow ratchet ring 33 inside along with the rotation of fluted disc sleeve 31, makes ratchet ring 33 drive rear drum to rotate, and wheel advances.
When kick backward bicycle pedal time, fluted disc 32 is with active toothed disk sleeve 31 to rotate, and ratchet 37 is instead compressed by the ratchet 55 of ratchet ring 33 inside along with the rotation of fluted disc sleeve 31, fluted disc sleeve 31 dallies, ratchet ring 33 does not drive rear drum to rotate, and wheel does not advance, thus realizes single-direction transmission.
No. three bearings, No. four bearings 3,4 are inlaid in the inside of fluted disc sleeve 31, and are adhesively fixed by metal-to-metal adhesive, and the outer wall of fluted disc sleeve 31 is provided with spline 73, and spline 73 is for being connected with fluted disc 32.The inwall of fluted disc 32 is provided with spline 74, and spline 73 matches with spline 74.
Fluted disc 32 can be single-stage fluted disc, also can be multi-change speed fluted disc.Axis 6 is set in the middle part of axle skin 7 and fluted disc sleeve 31, the inner ring of outer wall and a bearing 1, No. two bearings 2, No. three bearings 3, No. four bearings 4 of axis 6 becomes flush fit, left end spindle nose 38 and the left locknut 58 of axis 6 are spirally connected, right-hand member spindle nose 39 and the right locknut 59 of axis 6 are spirally connected, thus fluted disc sleeve 6 fit is sealed, guarantee that fluted disc sleeve 6 can drive rear drum 10 to rotate.Left locknut 58, right locknut 59 can be made up of nut or nut cap.Quick-dismantle component is by a preloading spring 41, No. two preloading springs 42, block nut 43, axle core bar 44, pad 45, handle 46 forms, a preloading spring 41 and block nut 43 are arranged on the left end of flower-drum 10, No. two preloading springs 42 and pad 45 are arranged on the right-hand member of flower-drum 10, axis 6 is made up of hollow tubular, axle core bar 44 is set in the inner chamber of axis 6, right-hand member spindle nose 49 and the handle 46 of axle core bar 44 are spirally connected, the left end spindle nose 48 of axle core bar 44 through after a preloading spring 41 and block nut 43 be spirally connected, please refer to Figure 24, Figure 25, Figure 26, during use, spoke 5 penetrates from the cylindrical void 28 of wearing left floral disc 8, spoke 50 penetrates from the cylindrical void 29 of wearing right floral disc 9.Can fast replacing wheels by Quick-dismantle component, the model of above-mentioned metal-to-metal adhesive is ZY-anaerobic adhesive.
Embodiment two
Please refer to Figure 17, Figure 18, Figure 19, Figure 20, Figure 21, Figure 22, Figure 23, the brake assemblies of the present embodiment is identical with the brake assemblies structure of above-described embodiment one, difference is flywheel assembly, in the present embodiment, flywheel assembly is by fluted disc sleeve 61, fluted disc 62, ratchet ring 63, ratchet 64, wire spring 65, No. three bearings 3 form, fluted disc sleeve 61 is one-body molded with right floral disc 9, ratchet ring 63 is packed in the centre hole of fluted disc 62, fluted disc 62 can be single-stage fluted disc, also can be multi-change speed fluted disc, ratchet 64 is arranged on the inside of ratchet ring 63, ratchet 64 cylindrical is provided with three pawl slots 66, a ratchet 67 is provided with in each pawl slot 66, ratchet 67 is connected with wire spring 65, wire spring 65 is arranged around ratchet 64 cylindrical, ratchet 64 is encapsulated in the inside of ratchet ring 63 by end cap 70.End cap 70 is fixedly connected with ratchet ring 63 by spiral nail.The centre hole of ratchet 64 is provided with screw thread 75, and screw thread 75 and fluted disc sleeve 61 are screwed together, and are adhesively fixed by metal-to-metal adhesive.No. three bearings 3 are adhesively fixed on the inside of fluted disc sleeve 61 by metal-to-metal adhesive, axis 60 becomes flush fit with the inner ring of No. three bearings 3, left end spindle nose 68 and the left locknut 78 of axis 60 are spirally connected, right-hand member spindle nose 69 and the right locknut 79 of axis 60 are spirally connected, thus flywheel assembly fit is sealed, guarantee that flywheel assembly can drive rear drum to rotate.Axis 60 is different from the axis 6 in embodiment one, and the axis 6 in embodiment one is hollow shafts, can install Quick-dismantle component, and in the present embodiment, axis 60 is solid axles, can not install Quick-dismantle component.
Embodiment three
Please refer to Figure 27, the present embodiment is substantially identical with the structure of above-described embodiment one, difference is: the assembly relation of rear drum is different, in above-described embodiment one, axle skin 7 outer wall left end and right-hand member are without outside thread screw thread, but being provided with the shaft shoulder, left floral disc 8 is sleeved on the left end of axle skin 7 by friction tight mode, right floral disc 9 is sleeved on the right-hand member of axle skin 7 by friction tight mode.In the present embodiment, left floral disc 8, right floral disc 9 are be threaded with the assembly relation of axle skin 7, and are adhesively fixed by metal-to-metal adhesive.Left floral disc 8 is screwed onto the left end of axle skin 7 by negative thread screw thread 76, and is adhesively fixed by metal-to-metal adhesive, and right floral disc 9 is screwed onto the right-hand member of axle skin 7 by negative thread screw thread 77, and is adhesively fixed by metal-to-metal adhesive.The model of above-mentioned metal-to-metal adhesive is ZY-anaerobic adhesive.
Embodiment four
Flower-drum in above-mentioned three embodiments is all use as rear drum, because be all provided with fluted disc and flywheel assembly, please refer to Figure 28, Figure 29, Figure 30, Figure 31, the flower-drum of the present embodiment and the difference of above-mentioned three embodiments are, the right floral disc of the present embodiment does not arrange fluted disc and flywheel assembly, flower-drum 10 is by axle skin 7, left floral disc 8, right floral disc 9 is formed, left floral disc 8, right floral disc 9 is set in a left side for axle skin 7 outer wall, right two ends, left floral disc 8, the outer rim of right floral disc 9 is respectively arranged with and wears cylindrical void 28, 29, a bearing 1, No. two bearings 2 are inlaid in the left end in axle intracutaneous chamber and the stepped hole of right floral disc 9 respectively, axis 60 is set in flower-drum 10 inner chamber, axis 60 and a bearing 1, the inner ring of No. two bearings 2 becomes flush fit, brake assemblies 20 is arranged on the left end of flower-drum 10, the structure of brake assemblies 20 is identical with embodiment one.Bicycle expansion brake hub assembly shown in the present embodiment uses as front flower-drum.
Embodiment five
Please refer to Figure 32, the flower-drum of the present embodiment constructs substantially identical with the flower-drum of above-described embodiment four, difference is, the axis of the present embodiment is hollow shaft, Quick-dismantle component is installed, the structure of Quick-dismantle component is identical with embodiment one, and the Bicycle expansion brake hub assembly shown in the present embodiment uses as front flower-drum.
Claims (8)
1. a Bicycle expansion brake hub assembly, comprise flower-drum, axis, flower-drum is made up of axle skin and the floral disc being fixed in axle skin two ends, axis is supported by the bearing of flower-drum inside, it is characterized in that: in one end of flower-drum, brake assemblies is installed, brake assemblies is by the block that rises, roller skeleton, Internal baffle, outer cover plate, retracing spring, torsion spring and brake tile composition, brake tile is circular arc, brake tile has polylith, these brake tiles are circumferential uniform around the inwall of floral disc housing, roller skeleton is arranged in the inner side of brake tile, roller skeleton is petal, roller skeleton is provided with six break slots, a columniform roller is housed in each break slot, one end of axis arranges pillow block, the both sides of pillow block are respectively arranged with a homalocephalus and No. two homalocephalus, the centre hole of Internal baffle is with flat mouth, Internal baffle is sleeved on a homalocephalus of pillow block by centre hole, the side of Internal baffle is resisted against on the shaft shoulder inside pillow block, the inner of roller skeleton is resisted against on the side of Internal baffle, the block that rises is hexagon, the block that rises is inlaid in the inner chamber of roller skeleton, the rise outside of block is connected with end plate, this end plate is provided with brake spanner, the block that rises is sleeved on the pillow block of axis by centre hole, outer cover plate is arranged in the outside of the block that rises, outer cover plate is provided with leg, the centre hole of outer cover plate is with flat mouth, outer cover plate is sleeved on No. two homalocephalus of pillow block by centre hole, outer cover plate is resisted against on the shaft shoulder outside pillow block, torsion spring is arranged between end plate outside the block that rises and outer cover plate, one end of torsion spring is fixed on brake spanner, the other end of torsion spring is fixed on outer cover plate, Internal baffle, roller skeleton, connected by fastener between outer cover plate, the cylindrical of brake tile is provided with arc groove, described retracing spring is annular arrangement, retracing spring hoop is in the arc groove of brake tile cylindrical,
During brake, the heart yearn of brake cable drives brake spanner to rotate, and the elastic force effect that brake spanner overcomes torsion spring rotates an angle, and the block that rises also rotates an angle, roller is to outer displacement, squeeze and push away three pieces of brake tiles, brake tile overcomes the effect of retracing spring also to outer displacement, with the contact internal walls of left floral disc housing, extrude the inwall of left floral disc housing, form friction drag, allow flower-drum brake, complete brake; During reset, under the elastic force effect of torsion spring, the reversion of brake spanner resets, and the block that at this moment rises also reverses resets, and three pieces of brake tiles inwardly shrink under the effect of retracing spring, and no longer with the contact internal walls of left floral disc housing, friction drag releasing, brake is released.
2. a kind of Bicycle expansion brake hub assembly as claimed in claim 1, it is characterized in that: the other end of described flower-drum is provided with flywheel assembly, flywheel assembly is by fluted disc sleeve, fluted disc, ratchet ring, ratchet, wire spring forms, ratchet ring is arranged in the centre hole of floral disc, ratchet is arranged on the end of fluted disc sleeve, ratchet cylindrical is provided with pawl slot, ratchet is furnished with in pawl slot, ratchet is connected with wire spring, wire spring is arranged around ratchet cylindrical, axis runs through fluted disc sleeve, left end spindle nose and the left locknut of axis are spirally connected, right-hand member spindle nose and the right locknut of axis are spirally connected.
3. a kind of Bicycle expansion brake hub assembly as claimed in claim 1, it is characterized in that: the other end of described flower-drum is provided with flywheel assembly, flywheel assembly is by fluted disc sleeve, fluted disc, ratchet ring, ratchet, wire spring forms, fluted disc sleeve and floral disc one-body molded, ratchet ring is arranged in the centre hole of fluted disc, ratchet is arranged on the inside of ratchet ring, ratchet cylindrical is provided with pawl slot, ratchet is provided with in pawl slot, ratchet is connected with wire spring, wire spring is arranged around ratchet cylindrical, the centre hole of ratchet is screwed together by screw thread and fluted disc sleeve, axis runs through fluted disc sleeve, left end spindle nose and the left locknut of axis are spirally connected, right-hand member spindle nose and the right locknut of axis are spirally connected.
4. a kind of Bicycle expansion brake hub assembly as claimed in claim 1, it is characterized in that: described axis is made up of hollow tubular, axle core bar has been placed in axis inner chamber, the left end of flower-drum is provided with a preloading spring and block nut, the right-hand member of flower-drum is provided with No. two preloading springs and pad, the left end spindle nose of axle core bar is spirally connected with block nut through after a preloading spring, and the right-hand member spindle nose of axle core bar is through affixed with handle after No. two preloading springs, pad.
5. a kind of Bicycle expansion brake hub assembly as claimed in claim 1, is characterized in that: described floral disc is connected with axle skin by friction tight mode.
6. a kind of Bicycle expansion brake hub assembly as claimed in claim 1, is characterized in that: described floral disc is connected with axle skin by the mode be spirally connected.
7. a kind of Bicycle expansion brake hub assembly as claimed in claim 1, is characterized in that: described floral disc is connected with axle skin by bonding mode.
8. a kind of Bicycle expansion brake hub assembly as claimed in claim 1, it is characterized in that: the outer rim of described outer cover plate is provided with flange, the middle part of outer cover plate is provided with annular boss, and flange and annular boss are formed spacing to torsion spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310168122.7A CN103303061B (en) | 2013-05-06 | 2013-05-06 | Bicycle expansion brake hub assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310168122.7A CN103303061B (en) | 2013-05-06 | 2013-05-06 | Bicycle expansion brake hub assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103303061A CN103303061A (en) | 2013-09-18 |
| CN103303061B true CN103303061B (en) | 2015-08-19 |
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| CN201310168122.7A Active CN103303061B (en) | 2013-05-06 | 2013-05-06 | Bicycle expansion brake hub assembly |
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| CN103770569B (en) * | 2014-02-13 | 2016-03-02 | 佛山市顺德区敏泰五金制品有限公司 | Twoly drive Double-brake type flower-drum |
| CN107284595A (en) * | 2017-07-10 | 2017-10-24 | 宁波优升车业有限公司 | A kind of brake gear for being fixed on bicycle contact pin groove |
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|---|---|---|---|---|
| JP2702350B2 (en) * | 1992-03-23 | 1998-01-21 | 株式会社シマノ | Bicycle braking device |
| CN2172219Y (en) * | 1993-09-14 | 1994-07-20 | 吴俊东 | Bicycle driving axle device |
| JP3097904B2 (en) * | 1997-01-10 | 2000-10-10 | 株式会社シマノ | Bicycle hub |
| CN2685115Y (en) * | 2004-01-30 | 2005-03-16 | 冠雷实业有限公司 | Bidirectional ratchet assembly of flywheel for hub and hub |
| JP2005231556A (en) * | 2004-02-20 | 2005-09-02 | Shimano Inc | Hub for bicycle |
| JP3950870B2 (en) * | 2004-05-14 | 2007-08-01 | 株式会社シマノ | Bicycle brake device |
| TWI252815B (en) * | 2004-10-19 | 2006-04-11 | Kun Teng Industry Co Ltd | Externally pulled claw-type ratchet hub |
| JP5188474B2 (en) * | 2009-08-19 | 2013-04-24 | 喬紳股▲ふん▼有限公司 | Normally closed silent hub ratchet structure |
| CN203236964U (en) * | 2013-05-06 | 2013-10-16 | 胡伟 | Bicycle expansion and brake hub assembly |
-
2013
- 2013-05-06 CN CN201310168122.7A patent/CN103303061B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103303061A (en) | 2013-09-18 |
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