CN2444088Y - Three-stages internal variable speed axle - Google Patents
Three-stages internal variable speed axle Download PDFInfo
- Publication number
- CN2444088Y CN2444088Y CN 00249501 CN00249501U CN2444088Y CN 2444088 Y CN2444088 Y CN 2444088Y CN 00249501 CN00249501 CN 00249501 CN 00249501 U CN00249501 U CN 00249501U CN 2444088 Y CN2444088 Y CN 2444088Y
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- Prior art keywords
- ratchet
- selector
- planet
- variable speed
- internal variable
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Abstract
The utility model provides a three-stages internal variable speed axle used for a bicycle. The utility model comprises a main axle, an axle casing, a driving component, a shifting component, a transmission component, and a planetary gear train, wherein, the driving component comprises a driving device with a sprocket. The shifting component comprises a shifting device and a group of position control mechanism; the transmission component comprises a ratchet mechanism A, a ratchet mechanism B, and a ratchet mechanism B. The utility model has the advantages that the utility model can realize the three-stages internal variable speed without neutral position; the utility model has simple structure, few components, and convenient processing and assembling; the utility model can reduce the cost of the products; the utility model can increase the production efficiency and can enhance the product competitiveness.
Description
The utility model relates to a kind of bicycle gearshift, is meant a kind of three grades of internal speed-changing rear axles of no neutral gear that are used for bicycle particularly.
Existing bicycle gearshift has internal speed-changing and outer speed change two big classes usually.Existing internal speed changer all adopts epicyclic train to make the speed change part basically.Internal speed-changing is exempted from maintenance because the gear foundation fund is enclosed in the axle housing, and the life-span is long, is widely adopted, but exists " neutral gear " still to be its deadly defect in the shifted process.Along with development of technology, existing in recent years " no neutral gear " internal speed changer comes out, but this product parts is many, complex structure, and processing difficulties, thereby cost is higher.
The purpose of this utility model is to propose three grades of internal variable speed axles of a kind of no neutral gear, and simple in structure by the improvement to transmission and gear, part is few, and easily processing to enhance productivity, reduces manufacture cost.
A kind of three grades of internal variable speed axles of the present utility model, comprise main shaft 208, axle housing 106, driven unit I, shifter assemblies II, transmitting assemblies and the epicyclic train III of forming by sun tooth 204, planet carrier 501, planet tooth 505 and planet ring gear 401, shifter assemblies II and epicyclic train III are installed on the main shaft, be installed with left and right floral disc 104,109 on the axle housing, the driven unit I is one the driver 301 of sprocket wheel 305 to be housed, and this driver slides on the selector 206; The shifter assemblies II comprises a selector 206 and one group of position control mechanism; Transmitting assemblies comprises ratchet mechanism A, B and C, and every group of ratchet mechanism formed by ratchet, ratchet, and wherein ratchet A is located on the pawl base, and pawl base slides on the selector, ratchet A and planet ring gear one; Ratchet B is located on the planet carrier, and ratchet B is located at the inner ring of axle housing; Ratchet C is located on ratchet A and the planet ring gear combination, and ratchet C also is located at the inner ring of axle housing; Be provided with clutch mechanism between selector and the planet carrier and between ratchet C and the ratchet C by selector control.
The advantage of three grades of internal variable speed axles of the present utility model is: can realize three grades of no neutral gear internal speed-changings, and simple in structure, part number is few, and processing and easy to assembly can make product cost reduce, and strengthens product competitive ability.
Now the utility model will be further described in conjunction with two embodiments and accompanying drawing thereof.
Fig. 1 is embodiment 1 a general assembly drawing;
Fig. 2 is the component diagram of embodiment's 1 middle shell part;
Fig. 3 is the component diagram of driven unit part among the embodiment 1;
Fig. 4 is shifter assemblies and the key plan of sun tooth on main shaft among the embodiment 1;
Fig. 5 is the component diagram of epicyclic train and ratchet mechanism A, B among the embodiment 1, C;
Fig. 6 is the A-4 sectional drawing of Fig. 1, and the sectional view of ratchet A is shown;
Fig. 7 is a B-B sectional drawing among Fig. 1, and the sectional view of ratchet B is shown;
Fig. 8 is a C-C sectional drawing among Fig. 1, and the sectional view of ratchet C is shown;
Fig. 9 is a D-D sectional drawing among Fig. 1, and the sectional view of epicyclic train is shown;
Figure 10 is embodiment 2 a general assembly drawing.
101 left dirt lids among the figure, 102 left side axle bowls, 103 left tape holder steel balls, 104 left floral discs, 105 left rings, 106 axle housings, 107 right rings, 108 big tape holder steel balls, 109 right floral discs, 110 big dirt lids, 201 locknuts, 202 left side axle shelves, 203 jump rings, 204 sun teeth, 205,205 ' stage clip, 206 selectors, 207,207 ' lateral pin, 208 main shafts, 209 right axle shelves, 210 push rods, 210 ' pull bar, 301 drivers, 302 macro-axis shelves, 303 right axle bowls, 304 adjust packing ring, 305 sprocket wheels, 306 steel traveler, but 307 tape holder steel balls, 308 right dirt lids, 401 planet ring gears, 402 retainers, 403 ratchet springs, 404 magnetic tape trailer ratchets, 405 detent pin, 406 spacing pads, 407 ratchet spring A, 408 ratchet A, 409 pawl bases, 410 ratchet circles, 501 planet carriers, 502 ratchet spring B, 503 ratchet B, 504 planet alligators, 505 planet teeth, 506 planet alligator jump rings.
Embodiment 1 of the present utility model as shown in Figure 1, comprises main shaft 208, axle housing 106, driven unit I, shifter assemblies II, transmitting assemblies and epicyclic train III.Described shifter assemblies and epicyclic train are installed on the main shaft, place in the axle housing.
The driven unit I is based on driver 301, be input block, the sprocket wheel 305 of input power is housed on this driver right-hand member external splines, left end outside and macro-axis shelves 302 close-fittings are together, its spline endoporus slides on the splined shaft of selector 206 afterbodys, referring to Fig. 1 and Fig. 3.
The shifter assemblies II comprises a selector 206 and one group of position control mechanism.Selector 206 slides on the main shaft 208, can on this main shaft, horizontally slip and rotate, its left side is provided with end face ratchet 206-1, can be meshed with the end face ratchet on the planet carrier 501 in the epicyclic train when needing, its right-hand member outside is a spline, in order to driver 301 on inner splined hole be slidingly matched.The position of selector 206 on main shaft has 3 grades, 3 kinds of speed when correspondence is ridden: speedup, flat speed and deceleration, its position is controlled by position control mechanism.When selector is in leftward position (seeing the dotted line among Fig. 4) is speedup, at this moment end face ratchet on the selector and the end face ratchet engagement on the planet carrier; For slowing down, this moment, selector was thrown off the interior ratchet 106-2 on magnetic tape trailer ratchet 404 and the axle housing when selector is in right positions (seeing the dot and dash line among Fig. 4); Be flat speed when selector mediates, this moment, selector only played gearing.Position control mechanism comprises a push rod 210, a lateral pin 207 and a stage clip 205, described lateral pin places the aperture of selector 206 right-hand members, and stage clip 205 places the selector left side, stretches in the center hole of push rod by main shaft 208 right-hand members, under the effect of external force, can promote lateral pin left from the right side, promote selector then, make it to keep speedup or flat fast position, no external force is done the time spent, stage clip promotes selector to the right, makes it keep decelerate position, referring to Fig. 1 and Fig. 4.
Described transmitting assemblies comprises ratchet mechanism A, ratchet mechanism B, ratchet mechanism C.
Ratchet mechanism A is by pawl base 409, ratchet circle 410, ratchet A408 and ratchet spring A407 form, the inner splined hole of described pawl base slides on the spline of selector 206 afterbodys, itself and selector 206 are rotated synchronously, be arranged with 2 pieces of ratchet A on the pawl base, ratchet spring A is the annular reed of a ring set on the pawl base cylindrical, to keep ratchet A to lift, the ratchet snare is outside pawl base, and mat square key and retainer 402 is connected as a single entity with planet ring gear 401, be provided with one between both junction planes and prevent the spacing pad 406 that pawl base 409 is shifted, referring to Fig. 1, Fig. 5 and Fig. 6.When pawl base rotated, the ratchet circle rotated with pawl base, but if the rotating speed of ratchet circle during greater than the rotating speed of pawl base, ratchet A skids, and ratchet mechanism A is inoperative.
Ratchet mechanism B is made up of planet carrier 501, axle housing 106, ratchet B503 and ratchet spring B502, planet is erected the pawl base effect, symmetry is equipped with 2 pieces of ratchet B on its left end cylindrical, the ratchet spring B that keeps ratchet B to lift is the annular reed of a ring set on the planet carrier cylindrical, axle housing is with ratchet 106-1 in it and ratchet B engagement, referring to Fig. 1, Fig. 2, Fig. 5 and Fig. 7.When planet carrier rotated, axle housing rotated with planet carrier, but if the rotating speed of axle housing during greater than planet carrier, ratchet B skids, and ratchet mechanism B is inoperative.
Ratchet mechanism C is made up of detent pin 405, ratchet spring 403, magnetic tape trailer ratchet 404 and axle housing 106,2 pieces of detent pin symmetries are located in the breach between planet ring gear 401 and the ratchet circle, 2 pieces of magnetic tape trailer ratchets are contained in respectively on 2 detent pin, the lower left quarter of magnetic tape trailer ratchet afterbody is provided with an inclined-plane, axle housing plays ratchet effect with ratchet 106-2 in it, ratchet spring 403 is located on the detent pin, to keep the engagement of the interior ratchet 106-2 on magnetic tape trailer ratchet 404 and the axle housing, referring to Fig. 1, Fig. 2, Fig. 5 and Fig. 8.When the combination of ratchet circle and planet ring gear rotates, drive axle housing 106 and rotate, when selector 206 promotes the inclined-plane of magnetic tape trailer ratchet afterbody to the right, the pawl head of magnetic tape trailer ratchet is depressed, magnetic tape trailer ratchet and interior ratchet 106-2 throw off, and clutch mechanism C is inoperative.
The epicyclic train III is a planet train of gearings, comprise sun tooth 204, planet carrier 501, planet tooth 505, planet alligator 504, planet ring gear 401, described sun tooth is fixed on the main shaft 208 with flat tenon, 3-4 planet tooth is housed on the planet carrier, sun tooth on each planet tooth and the main shaft and the internal tooth on the planet ring gear are meshed, planet carrier 501 right sides are provided with end face ratchet 501-1, can be meshed with the end ratchet tooth 206-1 on the selector 206, planet ring gear 401 and ratchet circle 401 connect as one with square tenon and retainer 402 as described above.Referring to Fig. 1, Fig. 5 and Fig. 9.During work, it is motionless that sun tooth keeps, and drives planet tooth rotation and revolution when planet carrier rotates, makes the planet ring gear under the acting in conjunction of the revolution of planet tooth and rotation, and generation is higher than the speedup of planet carrier rotating speed and moves; Otherwise when rotating when the planet ring gear is imported, planet carrier then produces the retarded motion that is lower than planet ring gear rotating speed.
Working procedure of the present utility model is such.(1) during speedup, shifter assemblies makes selector 206 left, its end face ratchet is meshed with end face ratchet on the planet carrier 501, power drives planet carrier 501 by driver 301 by selector 206, to planet ring gear 401 speedups, by ratchet mechanism C, from axle housing 106 outputs, ratchet mechanism A, B are all owing to the rotating speed of ratchet is inoperative greater than the rotating speed of ratchet at this moment again; When (2) slowing down, shifter assemblies makes selector 206 to the right, throw off with planet carrier 501, also ratchet mechanism C is thrown off simultaneously, power passes through selector 206, ratchet mechanism A by driver 301, drive planet ring gear 401, to planet carrier 501 decelerations, again by ratchet mechanism B, from axle housing 106 outputs, ratchet mechanism A, B are all effective at this moment, and ratchet mechanism C throws off; When (3) equalling speed, shifter assemblies mediates selector 206, neither with planet carrier 501 engagements, ratchet mechanism C is thrown off, power is exported by axle housing 106 by ratchet mechanism C after passing through selector 206, ratchet mechanism A by driven unit, because of not passing through the epicyclic train speed change, so rotating speed is constant, this moment, ratchet mechanism B was because the ratchet rotating speed is inoperative greater than the ratchet rotating speed.
Claims (9)
1. three grades of internal variable speed axles, comprise main shaft (208), axle housing (106), driven unit I, shifter assemblies II, transmitting assemblies, reach the epicyclic train III of forming by sun tooth (204), planet carrier (501), planet tooth (505) and planet ring gear (401), described shifter assemblies and epicyclic train are installed on the main shaft, be installed with left and right floral disc (104,109) on the axle housing, it is characterized in that the driven unit I is one the driver (301) of sprocket wheel (305) to be housed, this driver slides on the selector (206); The shifter assemblies II comprises a selector (206) and one group of position control mechanism; Transmitting assemblies comprises ratchet mechanism A, B and C, and wherein ratchet A is located on the pawl base, and pawl base slides on the selector, and ratchet circle and planet ring gear are assembled into one; Ratchet B is located on the planet carrier, and ratchet B is located at the inner ring of axle housing; Ratchet C is located on ratchet circle and the planet ring gear combination, and ratchet C also is located at the inner ring of axle housing; Be provided with clutch mechanism between selector and the planet carrier and between ratchet C and the ratchet C by selector control.
2. according to three grades of internal variable speed axles of claim 1, it is characterized in that described driver (301) and sprocket wheel (305) and macro-axis shelves (302) are assembled together, described sprocket wheel is installed on the spline of its right-hand member, the macro-axis shelves are fixed on its left cylindrical, the inner splined hole of this driver slides on the spline of selector (206) afterbody, its left side is left steel ball (307), and the right side is big steel ball (108).
3. according to three grades of internal variable speed axles of claim 1, it is characterized in that in the shifter assemblies II, selector (206) is hubbed on the main shaft (208), the spline sleeve of its right-hand member afterbody is gone into the inner splined hole of driver (301), its left side is provided with the end face ratchet, when it slides onto the left side, with the end face ratchet engagement on the planet carrier (501), when it slides onto the right side, throw off ratchet C and ratchet C.
4. according to three grades of internal variable speed axles of claim 1 or 3, it is characterized in that in the shifter assemblies II, described position control mechanism comprises a push rod (210), one lateral pin (207) and a stage clip (205), the slotted eye of described lateral pin on main shaft (208) places the aperture of selector (206) right-hand member, described stage clip places the left side of selector, stretch in the center hole of described push rod by the main shaft right-hand member, mat external force can promote lateral pin from the right side, and then promote this selector, make it remain in neutral position or leftward position, when external force disappeared, stage clip made selector remain in right positions.
5. according to three grades of internal variable speed axles of claim 1 or 3, it is characterized in that in the shifter assemblies II, described position control mechanism comprises a pull bar (210 '), one lateral pin (207 ') and a stage clip (205 '), the slotted eye of described lateral pin on main shaft (208) places the aperture of this selector (206) left end, stage clip places this selector right side, stretching into the back in the center hole of pull bar by the main shaft right-hand member is connected with lateral pin, mat external force can spur this lateral pin from the left side, and then pulling selector, make it remain in neutral position or right positions, when external force disappeared, stage clip made selector remain in leftward position.
6. according to three grades of internal variable speed axles of claim 1, it is characterized in that ratchet mechanism A is by pawl base (409), ratchet circle (410), ratchet A (408) and ratchet spring A (407) form, the inner splined hole of pawl base slides on the spline of selector (206) afterbody, be arranged with 2 pieces of ratchet A on the pawl base, described ratchet snare is outside pawl base, mat square key and retainer (402) are combined as a whole with planet ring gear (401), be provided with one between both junction planes and prevent the ring washer (406) that pawl base (409) is shifted, the ratchet spring A that keeps ratchet A to lift is the annular reed of a ring set on the pawl base cylindrical.
7. according to the described three grades of internal variable speed axles of claim 1, it is characterized in that described ratchet mechanism B is made up of planet carrier (501), axle housing (106), ratchet B (503) and ratchet spring B (502), play that symmetry is equipped with 2 pieces of ratchet B on the left end cylindrical of planet carrier of pawl base effect, the ratchet spring B that keeps ratchet B to lift is the annular reed of a ring set on the planet carrier cylindrical, and the axle housing that plays ratchet effect is in being provided with interior ratchet with ratchet B corresponding position.
8. according to three grades of internal variable speed axles of claim 1, it is characterized in that described ratchet mechanism C is by detent pin (405), ratchet spring (403), magnetic tape trailer ratchet (404) and axle housing (106) are formed, in the breach between planet ring gear (401) and ratchet circle (410), be arranged with 2 pieces of detent pin, 2 pieces of magnetic tape trailer ratchets are contained in respectively on this 2 detent pin, the lower left quarter of magnetic tape trailer ratchet afterbody is provided with an inclined-plane, when selector (206) slides onto the right side and forces in this inclined-plane, just depress the pawl head of magnetic tape trailer ratchet (404), the axle housing that plays ratchet effect is in being provided with interior ratchet with magnetic tape trailer ratchet corresponding position.
9. according to three grades of internal variable speed axles of claim 1, it is characterized in that in the described epicyclic train III, sun tooth (204) is fixed on the main shaft (208) with flat tenon, 3-4 planet tooth (505) is housed on the planet carrier (501), each planet tooth is meshed with sun tooth and planet ring gear (401), and the planet carrier right side is provided with the end face ratchet, can be meshed with the end face ratchet on the selector (206), planet ring gear and ratchet circle connect with square tenon, and establish a retainer (402) that both are interfixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00249501 CN2444088Y (en) | 2000-09-30 | 2000-09-30 | Three-stages internal variable speed axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00249501 CN2444088Y (en) | 2000-09-30 | 2000-09-30 | Three-stages internal variable speed axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2444088Y true CN2444088Y (en) | 2001-08-22 |
Family
ID=33607932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00249501 Expired - Fee Related CN2444088Y (en) | 2000-09-30 | 2000-09-30 | Three-stages internal variable speed axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2444088Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509548B (en) * | 2009-03-11 | 2014-07-09 | 彭春明 | Mechanical pull rod gearing transmission |
| CN104295673A (en) * | 2014-09-22 | 2015-01-21 | 佘桂红 | Stepped transmission capable of transmitting power continuously |
| CN106985962A (en) * | 2017-05-11 | 2017-07-28 | 张家港川梭车业有限公司 | A kind of single wheel drive three keeps off speed change gear |
| CN107298153A (en) * | 2016-04-16 | 2017-10-27 | 李建伟 | Bicycle jack internal speed changer and its manufacturing process |
| CN107588161A (en) * | 2017-10-23 | 2018-01-16 | 张家港市九鼎机械有限公司 | A kind of gear ring inputs the full-automatic multi-shifting speed variator of Two-wheeled |
-
2000
- 2000-09-30 CN CN 00249501 patent/CN2444088Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509548B (en) * | 2009-03-11 | 2014-07-09 | 彭春明 | Mechanical pull rod gearing transmission |
| CN104295673A (en) * | 2014-09-22 | 2015-01-21 | 佘桂红 | Stepped transmission capable of transmitting power continuously |
| CN104295673B (en) * | 2014-09-22 | 2016-08-24 | 佘桂红 | The step change transmission of power can be transmitted continuously |
| CN107298153A (en) * | 2016-04-16 | 2017-10-27 | 李建伟 | Bicycle jack internal speed changer and its manufacturing process |
| CN107298153B (en) * | 2016-04-16 | 2020-04-28 | 李建伟 | Bicycle chain block inner speed changer and manufacturing process thereof |
| CN106985962A (en) * | 2017-05-11 | 2017-07-28 | 张家港川梭车业有限公司 | A kind of single wheel drive three keeps off speed change gear |
| CN107588161A (en) * | 2017-10-23 | 2018-01-16 | 张家港市九鼎机械有限公司 | A kind of gear ring inputs the full-automatic multi-shifting speed variator of Two-wheeled |
| CN107588161B (en) * | 2017-10-23 | 2024-03-29 | 张家港川梭车业有限公司 | Gear ring input double-wheel drive full-automatic multi-gear transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |