CN2742232Y - Novel gear speed-changing device and bicycle or tricycle and motor two wheel or three wheel vehicle - Google Patents
Novel gear speed-changing device and bicycle or tricycle and motor two wheel or three wheel vehicle Download PDFInfo
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- CN2742232Y CN2742232Y CN 200420074547 CN200420074547U CN2742232Y CN 2742232 Y CN2742232 Y CN 2742232Y CN 200420074547 CN200420074547 CN 200420074547 CN 200420074547 U CN200420074547 U CN 200420074547U CN 2742232 Y CN2742232 Y CN 2742232Y
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- speed changer
- bevel gear
- gear
- speed
- bicycle
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Abstract
The utility model relates to a speed-changing device, in particular to a novel gear speed-changing device and bicycle or tricycle and motor two wheel or three wheel vehicle. The bicycle or tricycle uses the novel speed-changing device containing a non-zero position-changing curve-bevel-teeth gear pair, the input shaft and the middle driving shaft of the speed-changing device are separately sheathed with a traditional gear provided with a limited speed-changing ratio, and one end of the output shaft and one end of the middle driving shaft of the speed-changing device are provided with the non-zero position-changing curve-bevel-teeth gear pair which has a limited driving ratio when steering to drive, or one end of the input shaft and the output shaft of the speed-changing device is only sheathed with the non-zero position-changing curve-bevel-teeth gear pair which has a limited drive ratio when steering to drive. The novel speed-changing device and the bicycle or tricycle have high gear strength, high driving efficiency and good anti-wear performance; compared with the traditional zero position-changing bevel gear, the utility model prolongs the service life by 1.5-2 times, having good impact-resistant ability and convenient use, which extends the service life of the vehicle without dropping a chain.
Description
One. technical field: the utility model relates to a kind of speed changer, particularly relates to a kind of new gear speed changer and bicycle or tricycle and motor-driven two-wheeled or tricycle.
Two. background technique: current bicycle and pedicab, mostly adopt chain transmission, the shortcoming of its existence is: (1) efficient is low, and especially bicycle chainwheel is installed in a side and draws inclined to one side wheel easily, causes that motion is uneven; (2) fall chain easily and cause unnecessary parking, install and be not easy, and oil pollution is arranged; (3) easily cause folder to prick trouser legs, tear the mashed clothing of making dirty.For electric bicycle and motor scooter etc. also more or less have the problems referred to above, efficient is low to cause the wasting of resources, increases economically to drop into the user cost height; In case fall chain midway, cause delay first, two is unhygienic, and very trouble is troubling.
Though replace " the no chain-wheel bicycle " of sprocket wheel to invent already with bevel gear, can effectively exempt aforesaid drawbacks, but owing to the defective that exists on the design of gears, when driving under improper external force effect, cause the gear train assembly distortion easily, cause gear destruction, gear life is shorter, and more gear changing also quite bothers; In addition, gear is because of wearing and tearing and cause the loosening and generation noise of bearing nog plate, is difficult for adjusting.This type of no chain-wheel bicycle or tricycle are also many in the prior art, a kind of " the gear shaft driving bicycle " of ZL91221524.0 for example, foot-operated axis place is provided with the axis gear hub, in bevel-gear sett is arranged, on rear axle, be fixed with the rear axle gear shell, in have bevel gear right, two groups of bevel gears between, link to each other with a splined shaft that is enclosed in the right chain stay, the terminal bevel gear is by the transformation of the way of flywheel outer ring, and it connects in backshaft skin by single direction ratchet mechanism.This bicycle light abrasion, the life-span is long, and is light, and bearing capacity is big, but it still adopts the conventional gears technology, is difficult to avoid the ubiquitous shortcoming of conventional gears.
In order to overcome traditional bevel gear technological deficiency, the present utility model people has carried out unremitting research, the spiral bevel gear parafacies pass technology of successively having declared several non-zero modifications, as being in the patent of invention " a kind of spiral bevel gear pair " of ZL97104422.8 in the patent No., put down in writing inventor's design philosophy, its technological scheme is: a kind of have a spiral bevel gear pair that crossed axis angle is a ∑, and (1) crossed axis angle ∑ does not change ∑=δ
1+ δ
2, δ in the formula
1Be driver pinion pitch cone angle, δ
2Be passive gearwheel pitch cone angle; (2) standard knot pitch cone radius R
0Change into R, R=R
0+ Δ R, R=R in the formula
0+ Δ R, R in the formula
0=0.5d
2/ sin δ
2, the big end end face virtual gear sub-center of (3) this bevel gear is apart from α
0VChange into α
V, α
V=α
0V+ Δ α, Δ α in the formula=Δ R* (tg δ
1+ tg δ
2) ≠ 0, at this moment, the standardization equivalent gear becomes and becomes the centre distance virtual gear, and when Δ α＞0, centre distance is elongated, becomes long centre distance virtual gear, and when Δ α＜0, centre distance shortens, and becomes short central apart from virtual gear.Advantage of the present invention is: under the constant condition of retainer shaft angle of cut ∑, adopt and become pitch cone radius to constitute change centre distance virtual gear pair, the novel bevel gear pair that manufactures and designs by four displacement system optimizations, has high strength, long lifetime, volume are little, and noise is low, big speed ratio and do not increase obviously advantage such as construction equipment investment.
Three. the model utility content:
Technical problem to be solved in the utility model: overcome background technique conventional gears technology and have shortcoming, in order to promote non-zero modification spiral bevel gear pinion drive technology, prolong service life of gear, reduce noise, the utility model proposes a kind of new gear speed changer and bicycle or tricycle and motor-driven two-wheeled or tricycle.
The technological scheme that the utility model adopted: a kind of new gear speed changer, the spiral bevel gear pair that contains non-zero modification, on the input shaft of speed changer and intermediate propeller shaft, respectively be set with the conventional tooth wheels of certain gear ratio, be equipped with at transmission output shaft one end and intermediate propeller shaft one end and turn to transmission to have the spiral bevel gear pair of the non-zero modification of a stable drive ratio, or only be set with at the input shaft of speed changer and output shaft one end and turn to transmission to have the spiral bevel gear pair of the non-zero modification of a stable drive ratio.
Described new gear speed changer, the spiral bevel gear pair of non-zero modification, (1) crossed axis angle ∑ does not change ∑=δ
1+ δ
2, δ in the formula
1Be driver pinion pitch cone angle, δ
2Be passive gearwheel pitch cone angle; (2) standard knot pitch cone radius R
0Change into R, R=R
0+ Δ R, R=R in the formula
0+ Δ R, R in the formula
0=0.5d
2/ sin δ
2, the big end end face virtual gear sub-center of (3) this bevel gear is apart from α
0VChange into α
V, α
V=α
0V+ Δ α, Δ α in the formula=Δ R* (tg δ
1+ tg δ
2) ≠ 0, at this moment, the standardization equivalent gear becomes and becomes the centre distance virtual gear, and when Δ α＞0, centre distance is elongated, becomes long centre distance virtual gear, and when Δ α＜0, centre distance shortens, and becomes short central apart from virtual gear.
Described new gear speed changer, speed changer are three-speed gear, or are two speed transmissions, or are a speed transmission, and input shaft and intermediate propeller shaft are installed in respectively on the relative sidewall of speed changer two by bearing is approximate parallel.
A kind of new bicycle or tricycle that has described new gear speed changer, except that sprocket wheel and chain, contain other main parts size of bicycle or tricycle, speed changer contains the spiral bevel gear pair of non-zero modification, speed changer foot-operated input axis and intermediate propeller shaft are set with traditional speed change gear group of certain gear ratio, or on input axis and intermediate propeller shaft, do not establish traditional speed change gear group, the speed changer of bicycle or tricycle is installed in foot-operated rotating middle shaft corresponding position place separately, at transmission output shaft one end and bicycle driving wheel rotating shaft one end or tricycle driving wheel rotating shaft middle part, respectively be equipped with and turn to the drive bevel gear pair, two turn between the drive bevel gear pair and connect by transmission output shaft, wherein have at least one to turn to that drive bevel gear is secondary be the spiral bevel gear pair of non-zero modification, or ride the spiral bevel gear pair that input shaft and output shaft one end are equipped with non-zero modification at speed changer.
On the speed changer wallboard, on the vehicle frame corresponding site, or on the protecting cover, protecting cover is the right chain stay of bicycle to the other end by bearing support or bearing fixing by bearing fixing for described bicycle or tricycle, output shaft one end.
A kind of two-wheeled or three-wheeled motor vehicle that has described new gear speed changer, except that sprocket wheel and chain, contain electronic or internal-combustion engine bicycle or motorcycle, or other main parts size of electro-tricycle or internal-combustion engine motorcycle, speed changer contains the spiral bevel gear pair of non-zero modification, be set with traditional speed change gear group of certain gear ratio on transmission input shaft and the intermediate propeller shaft, or in input shaft and intermediate propeller shaft, do not establish traditional speed change gear group, the output shaft of power engine is connected with the input shaft of speed changer, output shaft one end of speed changer and the driving wheel rotatingshaft of two-wheeled vehicle trailing wheel rotating shaft one end or three-wheeled motor vehicle middle part, the bevel gear pair that turns to transmission respectively is installed, two turn to the output shaft that passes through speed changer between the drive bevel gear pair to connect, wherein have at least one to turn to that drive bevel gear is secondary to be the spiral bevel gear pair of non-zero modification, or the spiral bevel gear pair that non-zero modification is housed at the input shaft and output shaft one end of speed changer.
Described two-wheeled or three-wheeled motor vehicle, transmission dwang one end by bearing fixing on the sidewall of speed changer output terminal, on driving wheel turning gear wheel set sleeve side wall on the vehicle frame corresponding site, the protecting cover in the rotating shaft is as the horizontal chain stay of two-wheeled vehicle by bearing support or bearing fixing for the other end.
Described two-wheeled or three-wheeled motor vehicle, power engine are direct current motor, or internal-combustion engine, and corresponding with direct current generator is no chain electric bicycle, or does not have the chain electro-tricycle, and corresponding with internal-combustion engine is no chain motorcycle, or does not have the chain motor tricycle.
Positive beneficial effect of the present utility model:
1. adopt novel non-zero modification spiral bevel gear pair in speed changer, compare with traditional zero displacement bevel gear technology, gear has the more long lifetime, can prolong 1.5-2 service time doubly.Can reduce user cost greatly, economical and practical.
2. the utility model gear-shift transmission, the zero displacement bevel gear with respect to traditional has higher intensity, wear resistance is good, has shock-resistant preferably ability, is applied to manpower, motor vehicle, will prolong vehicle service life, not worry falling chain, the transmission efficiency height.
3. speed changer is provided with two grades, third gear or one grade of speed change, can establish high, medium and low several speed threshold, is applicable to old man and children, different crowds such as working clan and student.
Four. description of drawings:
Fig. 1: novel three-speed gear speed changer structure schematic representation
Fig. 2: novel two fast gear-shift transmission structural representations
Fig. 3: one of novel single speed gear-shift transmission structural representation
Fig. 4: two of novel single speed gear-shift transmission structural representation
Fig. 5: one of Chainless bicycle, tricycle, motorcycle drive wheel drive bevel gear auxiliary structure schematic representation (non-zero modification)
Fig. 6: two (tradition zero displacements) of Chainless bicycle, tricycle, motorcycle drive wheel drive bevel gear auxiliary structure schematic representation
Fig. 7: no chain non-zero modification gear driving bicycle driving mechanism structural representation
Fig. 8: no chain non-zero modification gear transmission tricycle driving mechanism structural representation
Five. embodiment:
Embodiment one: referring to Fig. 1, bearing 5 fixedly input shaft 1 and intermediate propeller shaft 2 are passed through in this new gear speed changer both sides in the casing 4 of speed changer, be set with the conventional tooth wheels 7 of certain gear ratio on it, secondary 6-1 of spiral bevel gear, the 6-2 that turns to transmission and have the non-zero modification of a stable drive ratio be housed at transmission output shaft 3 one ends and intermediate propeller shaft 2 corresponding positions.This speed changer is a three-speed gear, and input shaft 1 is approximate parallel with intermediate propeller shaft 2, is installed in respectively on 4 liang of relative sidewalls of mission case.Speed change realizes connecting speed change by existing electric bicycle or motorcycle connection mode.
Embodiment two: referring to Fig. 2, numbering is identical with embodiment one among the figure, represents meaning identical, does not repeat.Present embodiment new gear speed changer structure is substantially with embodiment one, and its difference only is that present embodiment is two speed transmissions.
Embodiment three: referring to Fig. 3, numbering is identical with embodiment one among the figure, represents meaning identical, does not repeat.The present embodiment structure is substantially with embodiment one, two, and its difference only is that present embodiment is a speed transmission.
Embodiment four: referring to Fig. 4, numbering is identical with embodiment one among the figure, represents meaning identical, does not repeat.Present embodiment still is the single speed speed changer, its structure is with embodiment's three differences: a direct fixedly bevel gear 6-1 of non-zero modification spiral bevel gear pair on the foot-operated input axis 1, corresponding fixedly another bevel gear 6-2 of non-zero modification spiral bevel gear pair of one end of transmission output shaft 3, simple in structure, the transmission efficiency height.
Embodiment five: present embodiment is embodiment's two application of described speed changer on electronic, manpower bicycle, tricycle and motorcycle, realize the no chain transmission of electronic, manpower, internal-combustion engine bicycle or motorcycle, Given this three is similar on the drive unit mounting type, for sake of convenience, mode of execution is being carried out
Be example with the bicycle only during description, different is: for tricycle, drive unit is installed in driving wheel rotating shaft axle skin intermediate portion; When motivational drive, power machine output shaft connects transmission input shaft.Speed change realizes connecting speed change by existing electric bicycle or motorcycle connection mode.
Referring to Fig. 2, Fig. 5, Fig. 7, the spiral bevel gear pair 6 that speed changer contains non-zero modification is 6-1,6-2, foot-operated input shaft 1 of speed changer and intermediate propeller shaft 2 are set with traditional speed change gear group 7 of certain gear ratio, speed changer is installed in bicycle pedals rotating middle shaft corresponding position place, pedal is installed at input shaft 1 two ends, transmission output shaft 3 one ends and bicycle driving wheel rotating shaft one end, being equipped with and turning to drive bevel gear pair 10 (is the 10-1 among Fig. 5,10-2), two turn between the drive bevel gear pair by transmission output shaft 3 connections, output shaft 3 one ends are fixed on mission case 4 wallboards by bearing 5, the other end is driving on the protecting cover 9 of bevel gear pair 10 by bearing fixing, the output shaft 3 outer protection tubes 13 that are set with, as the right chain stay of bicycle frame one side, 8 is the live axle skin of bicycle or tricycle among Fig. 5,8-1 is bicycle vertically hung scroll wheel among Fig. 7, non-zero modification bevel gear 10-1 be bicycle freewheel the gear wheel similar device, fixedly connected to drive wheel with live axle skin 8.
Embodiment six: referring to Fig. 1, Fig. 6, Fig. 7, present embodiment can be electronic or the manpower driving for using the Chainless bicycle of new gear speed changer, and number in the figure is identical with the identical representative meaning of embodiment's five numberings, does not repeat.Present embodiment is with embodiment's five differences, and bicycle drives bevel gear pair with traditional zero displacement bevel gear pair (among Fig. 6 12,14) replacement.Speed changer is a three-speed gear.
Embodiment seven: referring to Fig. 4, Fig. 5, Fig. 8, present embodiment is no chain single speed tricycle, one zero displacement bevel gears are housed on the transmission input shaft, output shaft 3 one ends of speed changer are equipped with other one zero displacement bevel gears, form a pair of non-zero modification bevel gear pair 6, the driving wheel rotatingshaft middle part of tricycle is equipped with the drive bevel gear that turns to transmission output shaft 3 one end bevel gear correspondences, and the two forms non-zero modification spiral bevel gear pair, to drive the tricycle rotating shaft, driving wheel is rotated.Two pairs turn to the output shaft 3 that passes through speed changer between the drive bevel gear pair to connect, driving the secondary protecting cover 9 of drive bevel gear is fixed on tricycle frame's corresponding site, output shaft 3 is provided with protection tube 13, protection tube 13 is installed in and drives between drive bevel gear pair and protecting cover 9 and the mission case 4,11 is the tricycle chassis among Fig. 8, and 15 is wheel.
Embodiment eight: referring to Fig. 1, Fig. 5, Fig. 8, number in the figure is identical with above each embodiment, represents meaning identical, does not repeat, and present embodiment does not have the chain tricycle and is that with embodiment seven difference speed changer is a three-speed gear.
Embodiment nine: referring to Fig. 2, Fig. 6, Fig. 8, with embodiment eight, difference is that used speed changer is two speed transmissions, and rear wheel drive is tradition zero a displacement bevel gear, i.e. 12,14 bevel gear pairs of forming among Fig. 6.
Claims (8)
1. new gear speed changer, the spiral bevel gear pair that contains non-zero modification, on the input shaft of speed changer and intermediate propeller shaft, respectively be set with the conventional tooth wheels of certain gear ratio, it is characterized in that: be equipped with at transmission output shaft one end and intermediate propeller shaft one end and turn to transmission to have the spiral bevel gear pair of the non-zero modification of a stable drive ratio, or only be set with at the input shaft of speed changer and output shaft one end and turn to transmission to have the spiral bevel gear pair of the non-zero modification of a stable drive ratio.
2. new gear speed changer according to claim 1 is characterized in that: the spiral bevel gear pair of non-zero modification, (1) crossed axis angle ∑ does not change ∑=δ
1+ δ
2, δ in the formula
1Be driver pinion pitch cone angle, δ
2Be passive gearwheel pitch cone angle;
(2) standard knot pitch cone radius R
0Change into R, R=R
0+ Δ R, R=R in the formula
0+ Δ R,
R in the formula
0=0.5d
2/ sin δ
2,
(3) the big end end face virtual gear sub-center of this bevel gear is apart from α
0VChange into α
V, α
V=α
0V+ Δ α, Δ α in the formula=Δ R* (tg δ
1+ tg δ
2) ≠ 0, at this moment, the standardization equivalent gear becomes and becomes the centre distance virtual gear, and when Δ α＞0, centre distance is elongated, becomes long centre distance virtual gear, and when Δ α＜0, centre distance shortens, and becomes short central apart from virtual gear.
3. new gear speed changer according to claim 1 and 2, it is characterized in that: speed changer is a three-speed gear, or be two speed transmissions, or be a speed transmission, input shaft and intermediate propeller shaft are installed in respectively on the relative sidewall of speed changer two by bearing is approximate parallel.
4. a new bicycle or tricycle that has the described new gear speed changer of claim 1, except that sprocket wheel and chain, contain other main parts size of bicycle or tricycle, speed changer contains the spiral bevel gear pair of non-zero modification, speed changer foot-operated input axis and intermediate propeller shaft are set with traditional speed change gear group of certain gear ratio, or on input axis and intermediate propeller shaft, do not establish traditional speed change gear group, it is characterized in that: the speed changer of bicycle or tricycle is installed in foot-operated rotating middle shaft corresponding position place separately, at transmission output shaft one end and bicycle driving wheel rotating shaft one end or tricycle driving wheel rotating shaft middle part, respectively be equipped with and turn to the drive bevel gear pair, two turn between the drive bevel gear pair and connect by transmission output shaft, wherein have at least one to turn to that drive bevel gear is secondary be the spiral bevel gear pair of non-zero modification, or ride the spiral bevel gear pair that input shaft and output shaft one end are equipped with non-zero modification at speed changer.
5. bicycle according to claim 4 or tricycle, it is characterized in that: output shaft one end by bearing fixing on the speed changer wallboard, on the vehicle frame corresponding site, or on the protecting cover, protecting cover is the right chain stay of bicycle to the other end by bearing support or bearing fixing.
6. a two-wheeled or three-wheeled motor vehicle that has the described new gear speed changer of claim 1, except that sprocket wheel and chain, contain electronic or internal-combustion engine bicycle or motorcycle, or other main parts size of electro-tricycle or internal-combustion engine motorcycle, speed changer contains the spiral bevel gear pair of non-zero modification, be set with traditional speed change gear group of certain gear ratio on transmission input shaft and the intermediate propeller shaft, or in input shaft and intermediate propeller shaft, do not establish traditional speed change gear group, it is characterized in that: the output shaft of power engine is connected with the input shaft of speed changer, output shaft one end of speed changer and the driving wheel rotatingshaft of two-wheeled vehicle trailing wheel rotating shaft one end or three-wheeled motor vehicle middle part, the bevel gear pair that turns to transmission respectively is installed, two turn to the output shaft that passes through speed changer between the drive bevel gear pair to connect, wherein have at least one to turn to that drive bevel gear is secondary to be the spiral bevel gear pair of non-zero modification, or the spiral bevel gear pair that non-zero modification is housed at the input shaft and output shaft one end of speed changer.
7. two-wheeled according to claim 6 or three-wheeled motor vehicle, it is characterized in that: transmission dwang one end by bearing fixing on the sidewall of speed changer output terminal, on driving wheel turning gear wheel set sleeve side wall on the vehicle frame corresponding site, the protecting cover in the rotating shaft is as the horizontal chain stay of two-wheeled vehicle by bearing support or bearing fixing for the other end.
8. according to claim 6 or 7 described two-wheeled or three-wheeled motor vehicles, it is characterized in that: power engine is a direct current motor, or internal-combustion engine, corresponding with direct current generator is no chain electric bicycle, or there is not a chain electro-tricycle, corresponding with internal-combustion engine is no chain motorcycle, or does not have the chain motor tricycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420074547 CN2742232Y (en) | 2004-08-27 | 2004-08-27 | Novel gear speed-changing device and bicycle or tricycle and motor two wheel or three wheel vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420074547 CN2742232Y (en) | 2004-08-27 | 2004-08-27 | Novel gear speed-changing device and bicycle or tricycle and motor two wheel or three wheel vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2742232Y true CN2742232Y (en) | 2005-11-23 |
Family
ID=35477701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420074547 Expired - Fee Related CN2742232Y (en) | 2004-08-27 | 2004-08-27 | Novel gear speed-changing device and bicycle or tricycle and motor two wheel or three wheel vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2742232Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108938274A (en) * | 2018-05-04 | 2018-12-07 | 吴咏其 | A kind of nursing handcart for medical treatment |
| CN109736120A (en) * | 2018-12-26 | 2019-05-10 | 福建中田农业综合开发有限公司 | A kind of papermaking quick-dehydration device |
-
2004
- 2004-08-27 CN CN 200420074547 patent/CN2742232Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108938274A (en) * | 2018-05-04 | 2018-12-07 | 吴咏其 | A kind of nursing handcart for medical treatment |
| CN109736120A (en) * | 2018-12-26 | 2019-05-10 | 福建中田农业综合开发有限公司 | A kind of papermaking quick-dehydration device |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |