CN2355983Y - Speed changer in rim for electric bicycle - Google Patents
Speed changer in rim for electric bicycle Download PDFInfo
- Publication number
- CN2355983Y CN2355983Y CN 99204554 CN99204554U CN2355983Y CN 2355983 Y CN2355983 Y CN 2355983Y CN 99204554 CN99204554 CN 99204554 CN 99204554 U CN99204554 U CN 99204554U CN 2355983 Y CN2355983 Y CN 2355983Y
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- ratchet
- place
- rim
- nave boss
- trailing wheel
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Abstract
The utility model relates to a speed changer in rim for an electric bicycle, which is provided with a restraint bearing, a hub axle sleeve, a planetary gear sleeve barrel, a central shaft, a deflector rod, a slide block, etc. in the hub of a rim. When the deflector rod positioned in the hole of the central shaft rod is not pressed, the buckled pin at the hollow hole of a sleeve body is buckled with the first inner ring ratchet of a back wheel hub to rotate the back wheel hub and change speed in a first segment; when the deflector rod in the hole of the central shaft rod is pressed on the key in a key deflecting slot, the planetary gear sleeve barrel is driven to rotate to cause the back wheel hub to rotate and change speed in a second segment. The speed changer in rim for electric bicycle can cause the occupying volume of the external side of the hub of the rim of electric bicycle to be narrow and thin, and thus the body of the electric bicycle has excellent balanced performance.
Description
The utility model relates to a kind of speed-change gear, relates in particular to a kind of speed-changing device in rim of electric bicycle.
Because Electrical Bicycle is the vehicle that meet the environmental protection notion, to replace gradually with the fuel oil be the main flow that the self-propelled vehicle of power becomes following light-duty walking-replacing tool so have.Topmost propulsion source in electric bicycle structure, be to be provided with rim motor at the nave boss place, and be aided with members such as sun gear, planetary gear train, Internal gear in the pivot place, make it produce certain rotating speed, relend by the speed change dish at other end place of pivot and arrange in pairs or groups mutually with the chain sprocket at stretcher axle place, and with the chain serial connection, be equipped with the effect that change-speed box is stirred chain and then reached the multistage speed change more between the two.
Though the speed changing structure of above-mentioned conventional electric bicycle can reach the requirement of multistage speed change, it remains in following shortcoming, need be improved:
1. the structural form of the outer speed change of this speed changing structure is by the collocation of members such as speed change dish outside the wheel rim and chain sprocket, just can finish the program of multistage speed change.But speed change dish and chain sprocket must possess multiple tracks wheel sheet, just can finish the action of multistage speed change, so often form outer gibbosity in wheel rim nave boss outside, take the rim side usage space, disagree with the compact design philosophy that new improved Electrical Bicycle member is stressed.In addition, this speed changing structure is located at wheel rim nave boss outside, must consider the car body equilibrium problem, and this is that existing Electrical Bicycle can't both shortcomings of taking into account.
2. from the above mentioned, the rim motor at the nave boss place of this Electrical Bicycle, it only borrows members such as sun gear, planetary gear train, Internal gear to make pivot produce certain rotating speed, fix because of the output speed of pivot again, so must be by members such as speed change dish outside the wheel rim and chain sprockets, the size variation in its multiple tracks wheel sheet sheet footpath, the multistage speed change of could arranging in pairs or groups out.But, its output speed that is subject to pivot is a definite value, so only can make the collocation design of speed change in a less value range, the cross-country car type of often climbing the mountain is high torsion slow speed of revolution output, but can't significantly promote to being applicable to that the level land hangs down the high-revolving driving states of torsion through above-mentioned speed change member.Otherwise, if general level land car type then is the high rotating speed output of low torsion, speed change adjustment through above-mentioned speed change member, still can't satisfy the slow-revving best driving states of the cross-country required high torsion of mountain-climbing, so the close limit constrained of torsion and tachometer value is the insurmountable shortcoming of general Electrical Bicycle speed change member.
In view of the above-mentioned shortcoming that the conventional electric derailleur exists, this creator succeeds in developing the utility model finally through constantly test and research.
The purpose of this utility model is, a kind of speed-changing device in rim of electric bicycle is provided, adjust bottleneck with the speed change that breaks through torsion, rotating speed, thereby make the shared volume of rim of electric bicycle nave boss outside speed change dish narrow thin, and make car body have the innovation effect of splendid balance quality etc.
The purpose of this utility model is realized by following technical scheme.
A kind of speed-changing device in rim of electric bicycle, it is characterized in that, it is a rim motor output of being located at Electrical Bicycle back wheels of vehicle side, mainly comprise: the restraint bearing of a fifth wheel coil motor mouth, be provided with a bearing and bulge loop in its end cap, the bulge loop outer rim is provided with the elasticity hook, and the bulge loop inner edge offers arc groove; One is connected the trailing wheel nave boss in the restraint roller bearing end cap, is respectively equipped with in it to encircle in the first interior ring ratchet and second that directly varies in size to encircle ratchet, then is provided with the outer shroud tooth in an outside of hub body; One is located at the Drive ratchet at trailing wheel nave boss outer shroud tooth place; Always be located at the center shaft in the trailing wheel nave boss, have one group of keyway at the axis body appropriate location, the other place of nearly groove then sets firmly a sun gear, has a bar hole that can run through on the single face cell wall of dialling keyway in addition at axis body one end place; One is located at the hub axle cover in the trailing wheel nave boss, body one end has a circle flange, to recline mutually with the nave boss first inner circular tooth lateral margin, then ratchet in the circle in the flange, it then is a circle inner circular tooth that body is held inner edge in addition, and the place is provided with hollow hole at the cover body wall, and the hole wall place installs the button pin, and this button pin is fastened on the first interior ring ratchet place of trailing wheel nave boss; One is located at the planetary wheel sleeve in the hub axle cover, cylindrical shell cuts open and is provided with the arc ditch, several planetary wheels are set in the ditch, for matching with the center shaft sun gear, and the inner circular tooth of planetary wheel periphery and hub axle cover is fit mutually, cylindrical shell one end is provided with the ratchet hole, and in addition distal process is provided with several and colludes pawl, and this colludes the second interior inner circular tooth of pawl and nave boss and colludes mutually and close; One is sheathed on the slide block of central axis, the cave put by first spring that block biend place all offers ccontaining respectively first spring, second spring and second spring is put the cave, and block one end place is provided with prominent ratchet, be that ratchet hole with the planetary wheel sleeve forms a clutch structure, block end place outer rim in addition is provided with several lugs, can form another clutch structure with the arc groove of restraint bearing.
The utility model makes the slide block on the center shaft carry out the position switching in the hub axle cover and moves, thereby makes the trailing wheel nave boss reach the effect of multistage internal speed-changing.
Aforesaid speed-changing device in rim of electric bicycle, the driving lever that is positioned at the central shaft hole is not when pressure is touched, slide block is to keep motionless in the hub axle cover, treat that rim motor starts, the variable gear running of its mouth, and then drive restraint bearing rotates, the interior ratchet at the elasticity hook of restraint bearing and hub axle cover flange place is interlocked, so also related rotation of hub axle cover, and the button pin of body openwork hole, be the first interior ring ratchet place that is fastened on the trailing wheel nave boss, thereby the trailing wheel nave boss is rotated, reach one section internal speed-changing.
Aforesaid speed-changing device in rim of electric bicycle, driving lever in the central shaft hole is pressed and is touched the key of dialling in the keyway, can allow second spring of key pushing and pressing slide block put the place, cave, make slide block towards left slippage, then the prominent ratchet of slide block block one end breaks away from the ratchet hole of planetary wheel sleeve, and should must contact the button pin that hub axle overlaps by prominent ratchet, make button pin and the first interior ring ratchet place of trailing wheel nave boss be the shape that gets loose, and the lug at other end place of slide block block, then slip in the arc groove of restraint bearing, the interior ratchet at the elasticity hook of restraint bearing and hub axle cover flange place is interlocked, borrow the rotation of restraint bearing, the related hub axle cover of making also rotates, and hub axle cover body is held the inner circular tooth of inner edge in addition, with the planetary wheel of planetary wheel sleeve fit mutually, also driving the planetary wheel sleeve rotates, the pawl of establishing because of cylindrical shell end place is prominent again that colludes colludes mutually with second inner circular tooth in the trailing wheel nave boss and closes, thereby makes the rotation of trailing wheel nave boss, reaches the effect of two sections internal speed-changings.
Concrete structure of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Fig. 1 is a stereoscopic scheme drawing of the present utility model.
Fig. 2 is a unitized construction scheme drawing of the present utility model.
Fig. 3 is a decomposing schematic representation of the present utility model.
Fig. 4 is an enforcement illustration of the present utility model ().
Fig. 5 is an enforcement illustration of the present utility model (two).
Fig. 6 is the transversal surface cutaway view at A-A shown in Figure 5 position.
Fig. 7 is the transversal surface cutaway view at B-B shown in Figure 5 position.
Fig. 8 is the transversal surface cutaway view at C-C shown in Figure 5 position.
Fig. 9 is the transversal surface cutaway view at D-D shown in Figure 5 position.
Figure 10 is a stereoscopic scheme drawing of the present utility model.
For further understanding above-mentioned purpose of the present utility model, effect, technological means and characteristics etc., lift a specific embodiment now, and conjunction with figs. is described in detail as follows
As shown in Figure 1 to Figure 3, the utility model speed-changing device in rim of electric bicycle is rim motor (a 2) output of being located at Electrical Bicycle trailing wheel (1) side, mainly comprises:
The restraint bearing (3) of one fifth wheel coil motor (2) mouth is a ring-type end cap (30), is provided with a bearing (31) and bulge loop (32) in the lid, and bulge loop (32) outer rim is provided with elasticity hook (33), and bulge loop (32) inner edge then offers arc groove (34).
One is connected the trailing wheel nave boss (4) in restraint bearing (3) end cap (30), is respectively equipped with in it to encircle in the first interior ring ratchet (41) and second that directly varies in size to encircle ratchet (42), then is provided with outer shroud tooth (43) in an outside of hub body.
One driving chain wheel (9) has the outer shroud tooth (43) that an inner circular tooth hole (91) can be socketed on trailing wheel nave boss (4) in the wheel body centre and locates.
Always be located at the center shaft (5) in the trailing wheel nave boss (4), the place respectively is provided with screw thread (51) in the axis body two ends, have one group of keyway (52) at the axis body appropriate location again, the other place of nearly groove then sets firmly a sun gear (53), has a bar hole (54) that can run through on single face groove (521) wall of dialling keyway (52) in addition at axis body one end place.
One is located at the hub axle cover (6) in the trailing wheel nave boss (4), body one end has a circle flange (61), to recline mutually with nave boss first inner circular tooth (41) lateral margin, then ratchet (62) in the circle in the flange (61), again body hold in addition inner edge then be one the circle inner circular tooth (63), and the place is provided with symmetrical two hollow holes (64) at the cover body wall, the hole wall place can buckle pin (67) to install by latch (65) socket stage clip (66), and borrow establish button pin (67) be fastened on trailing wheel nave boss (4) first in ring ratchet (41) locate (referring to Fig. 7).
One is located at the planetary wheel sleeve (7) in the hub axle cover (6), cylindrical shell cuts open and is provided with arc ditch (71), supply to be provided with several planetary wheels (72) in the ditch, can match (referring to Fig. 8) with center shaft sun gear (53), and planetary wheel (72) periphery then with the inner circular tooth (63) of hub axle cover (6) fit mutually.Cylindrical shell one end place is placed with a ratchet hole (73) again, and in addition then be equipped with several and collude pawl (74) at the end place, and this colludes interior second inner circular tooth (42) of pawl (74) and trailing wheel nave boss (4) and colludes mutually and close (referring to Fig. 9).
One is sheathed on center shaft (5) closely dials the slide block (8) that keyway (52) is located, and block biend place offers all that first spring that can distinguish ccontaining first spring (811), second spring (821) is put cave (81) and second spring is put cave (82).And block one end place is provided with prominent ratchet (83), is ratchet hole (73) formation one clutch structure with planetary wheel sleeve (7); Block end place outer rim in addition then is provided with several lugs (84), can form another clutch structure with the arc groove (34) of restraint bearing (3).
The utility model is positioned at the driving lever (541) in center shaft (5) bar hole (54) when pressure is not touched (seeing also Fig. 4), slide block (8) is to keep motionless in hub axle cover (6), treat that rim motor (2) starts, the variable gear of its mouth (21) running, and then drive restraint bearing (3) rotation.Again, the interior ratchet (62) that the elasticity hook (33) of restraint bearing (3) and hub axle cover (6) flange (61) are located be interlocked (consulting Fig. 6), so also related rotation of hub axle cover (6), and the button pin (67) that body hollow hole (64) is located, be that the first interior ring ratchet (41) that is fastened on trailing wheel nave boss (4) is located (referring to Fig. 7), thereby trailing wheel nave boss (4) is rotated, reach the effect of one section internal speed-changing.
Again referring to shown in Figure 5, make the driving lever (541) in the central shaft hole (54) press the key (55) that touches in group keyway (52), second spring that allows key (55) push against slide blocks (8) is put cave (82) and is located, make slide block (8) towards left slippage, then the prominent ratchet (83) of slide block (8) block one end breaks away from the ratchet hole (73) of planetary wheel sleeve (7), and what should prominent ratchet (83) contact hub axle cover (6) buckles pin (67) (referring to Fig. 7), make button pin (67) and the first interior ring ratchet (41) of trailing wheel nave boss (4) locate to be the shape that gets loose, and the lug (84) at other end place of slide block (8) block then slips in the arc groove (34) of restraint bearing (3).Again, the interior ratchet (62) that the elasticity hook (33) of restraint bearing (3) and hub axle cover flange (61) is located be interlocked (referring to Fig. 6), borrow the rotation of restraint bearing (3), the related hub axle cover (6) that makes also rotates, and hub axle cover (6) body is held the inner circular tooth (63) of inner edge in addition, with the planetary wheel (72) of planetary wheel sleeve (7) fit (referring to Fig. 8) mutually, also drive planetary wheel sleeve (7) and rotate.The pawl of establishing because of cylindrical shell end place is prominent again (74) that colludes colludes mutually with second inner circular tooth (42) in the trailing wheel nave boss (4) and closes (referring to Fig. 9), thereby makes trailing wheel nave boss (4) rotation, reaches the effect of two sections internal speed-changings.
The outer shroud tooth (43) of the external side of trailing wheel nave boss (4) hub of the present utility model is located, can be arranged with one or the speed change dish (90) (referring to Figure 10) formed of together above driving chain wheel (9), can be with the trailing wheel nave boss (4) of internal speed-changing structure institute speed change,, make Electrical Bicycle can make the multistage speed change and travel to front wheel sprockets dish (93) through speed change dish (90) and chain (92) transmission.Again, internal speed-changing combines with outer speed changing structure, can arrange in pairs or groups and form the multistage speed changing structure that is applicable to climbing or level land, and locate to be provided with the internal speed-changing structure because of trailing wheel nave boss (4) center shaft (5), so can reduce sprocket wheel (9) number of speed change dish (90), thereby make the usage space of trailing wheel nave boss (4) outside, become narrow thin short and small, meet novel electric cycle carnival space-efficient design philosophy.In addition, this internal speed-changing structure is located in the trailing wheel nave boss (4), also can make the weight saving of wheel rim, thereby allows car body obtain splendid balance, and this is the great advantage of the utility model Electrical Bicycle internal speed-changing structure.
In sum, the speed-changing device in rim of electric bicycle that provides of the utility model.The novelty that meets novel patent application important document, creativeness and practicality are so file an application in accordance with the law.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (1)
1, a kind of speed-changing device in rim of electric bicycle is characterized in that, it is a rim motor output of being located at Electrical Bicycle back wheels of vehicle side, mainly comprises:
The restraint bearing of one fifth wheel coil motor mouth is provided with a bearing and bulge loop in its end cap, the bulge loop outer rim is provided with the elasticity hook, and the bulge loop inner edge offers arc groove;
One is connected the trailing wheel nave boss in the restraint roller bearing end cap, is respectively equipped with in it to encircle in the first interior ring ratchet and second that directly varies in size to encircle ratchet, then is provided with the outer shroud tooth in an outside of hub body;
One is located at the Drive ratchet at trailing wheel nave boss outer shroud tooth place;
Always be located at the center shaft in the trailing wheel nave boss, have one group of keyway at the axis body appropriate location, the other place of nearly groove then sets firmly a sun gear, has a bar hole that can run through on the single face cell wall of dialling keyway in addition at axis body one end place;
One is located at the hub axle cover in the trailing wheel nave boss, body one end has a circle flange, to recline mutually with the nave boss first inner circular tooth lateral margin, then ratchet in the circle in the flange, it then is a circle inner circular tooth that body is held inner edge in addition, and the place is provided with hollow hole at the cover body wall, and the hole wall place installs the button pin, and this button pin is fastened on the first interior ring ratchet place of trailing wheel nave boss;
One is located at the planetary wheel sleeve in the hub axle cover, cylindrical shell cuts open and is provided with the arc ditch, several planetary wheels are set in the ditch, for matching with the center shaft sun gear, and the inner circular tooth of planetary wheel periphery and hub axle cover is fit mutually, cylindrical shell one end is provided with the ratchet hole, and in addition distal process is provided with several and colludes pawl, and this colludes the second interior inner circular tooth of pawl and nave boss and colludes mutually and close;
One is sheathed on the slide block of central axis, the cave put by first spring that block biend place all offers ccontaining respectively first spring, second spring and second spring is put the cave, and block one end place is provided with prominent ratchet, be that ratchet hole with the planetary wheel sleeve forms a clutch structure, block end place outer rim in addition is provided with several lugs, can form another clutch structure with the arc groove of restraint bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99204554 CN2355983Y (en) | 1999-02-10 | 1999-02-10 | Speed changer in rim for electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99204554 CN2355983Y (en) | 1999-02-10 | 1999-02-10 | Speed changer in rim for electric bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2355983Y true CN2355983Y (en) | 1999-12-29 |
Family
ID=33999296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99204554 Expired - Lifetime CN2355983Y (en) | 1999-02-10 | 1999-02-10 | Speed changer in rim for electric bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2355983Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1093485C (en) * | 1999-02-10 | 2002-10-30 | 李书贤 | Speed-changing device in rim of electric bicycle |
| CN111619723A (en) * | 2020-07-08 | 2020-09-04 | 黎永杰 | Pulley block and lever combined driving device and bicycle |
-
1999
- 1999-02-10 CN CN 99204554 patent/CN2355983Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1093485C (en) * | 1999-02-10 | 2002-10-30 | 李书贤 | Speed-changing device in rim of electric bicycle |
| CN111619723A (en) * | 2020-07-08 | 2020-09-04 | 黎永杰 | Pulley block and lever combined driving device and bicycle |
| CN111619723B (en) * | 2020-07-08 | 2021-08-20 | 黎永杰 | Pulley block and lever combined driving device and bicycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |