CN2182142Y - Automatic speed variator for bicycle - Google Patents
Automatic speed variator for bicycle Download PDFInfo
- Publication number
- CN2182142Y CN2182142Y CN 93241192 CN93241192U CN2182142Y CN 2182142 Y CN2182142 Y CN 2182142Y CN 93241192 CN93241192 CN 93241192 CN 93241192 U CN93241192 U CN 93241192U CN 2182142 Y CN2182142 Y CN 2182142Y
- Authority
- CN
- China
- Prior art keywords
- shaft sleeve
- drive shaft
- speed
- gear
- axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000033001 locomotion Effects 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 abstract description 23
- 238000000034 method Methods 0.000 description 6
- 206010006514 bruxism Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001131 transforming effect Effects 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Structure Of Transmissions (AREA)
Abstract
The utility model relates to an automatic transmission device which can automatically change the gear ratio of a bicycle according to the road condition and the acting force of a cyclist when the bicycle is running. The main technical characteristics are that the middle shaft (1) is a power input shaft and a power output shaft, the driving shaft sleeve (5) and the middle speed driving shaft sleeve (17) receive a right axial force in direct proportion to the magnitude of the transmitted power when transmitting the power, the device is mainly used for changing the speed of the bicycle into high speed, middle speed and low speed, the gear changing action is fast, and the response is sensitive.
Description
The utility model relates to bicycle changes converter speed ratio in motion automatically according to road conditions, cyclist's amount of force gear arrangement.
The principle of bicycle shift is to utilize the sprocket wheel of one group of different-diameter and flywheel to change the bicycle shift ratio now, if when the frequent travels down of bad road and the gradient, people will judge that promptly used gear removes to handle speed-changing mechanism again continually.
In order to address this problem, before and after being developed into by one group of original sprocket wheel, common way also can handle simultaneously for two groups, there is the gear about ten selective although it is so, but bicycle is rickshaw after all, the cyclist exerts oneself when excessive susceptible to tired, the speed at one hour rating of exerting oneself can not be given full play to, therefore cooperating in the scope that can not remain on a best between people's muscle power and the speed of a motor vehicle when bad travels down.
The purpose of this utility model is that a kind of improved automatic speed-changing device for bicycle device will be provided, and it can change converter speed ratio automatically according to the size of different road conditions, cyclist's application force, and people's the muscle power and the speed of a motor vehicle are engaged in the scope an of the best.
The purpose of this utility model is achieved like this: this change-speed box is only used three gears, be respectively high speed gear, mid ranger and low gear, initial gear is a high speed gear, will be when road conditions are bad from trend mid ranger and low gear gear shift, when road conditions take a turn for the better from trend high tap position gear, high speed gear of this change-speed box and low gear transmit with two groups of transmission gears, mid ranger through-coupling mode, and the axial force that control mechanism utilizes screw motion to produce removes to drive gearshift.
The utility model is owing to the cyclist needn't go to remove to judge the manipulation gear according to road conditions, on bad road, change converter speed ratio according to road conditions automatically, people's application force is fully played in different road conditions, and can not feel overtired, and the action of this shifting of transmission is fast, is quick on the draw.
The concrete structure of utility model is provided by following embodiment and accompanying drawing thereof:
Fig. 1 is according to the automatic speed-changing device for bicycle front view (high speed gear state) that the utility model proposes.
Fig. 2 is according to the automatic speed-changing device for bicycle lateral plan (mid ranger state) that the utility model proposes.
This device comprises axis (1), axis (1) promptly is that power input shaft is again a power take-off shaft, its left end has straight key tooth, right-hand member (end of sprocket wheel 23 is housed) has the taper key tooth, the centre has lock ball (30) and retainer spring (31) is arranged in the hole, on the straight key tooth of left end of axis (1), drive shaft sleeve (5) is arranged, drive shaft sleeve (5) is cylindric, its inwall is that straight key tooth is meshed with the straight key tooth of axis (1) left end, and can horizontally slip thereon, the taper key tooth of outer wall is meshed with the interior taper key tooth of driving tooth wheels (6), drive shaft sleeve (5) is transferring power between axis (1) and driving tooth wheels (6), during transferring power, drive shaft sleeve (5) is subjected to an axial force to the right, the angle of inclination (to axial line) of taper key tooth is big or small proportional on the size of suffered axial force and institute's transferring power and the drive shaft sleeve (5), be connected with connecting cap (3) on the driving tooth wheels (6), connecting cap (3) and axis (1) free-running fit, and can go up to do to slide at axis (1) and rotate, be fixed on the change-speed box left shell (33) by bearing (2), overcome the axial motion of driving tooth wheels (6), between drive shaft sleeve (5) and the driving tooth wheels (6) retracing spring (4) is arranged, its effect is and the axial force of drive shaft sleeve (5) decision institute gear shift position, when axial force will be to high one grade transforming gear during greater than the elastic force of retracing spring (4), when axial force will be to high one grade transforming gear during less than the elastic force of retracing spring (4), be with gear shift shifting block (10) on the interlude of axis (1), gear shift shifting block (10) is a hexahedral shape, its up and down face be rectangle, front-back is a parallelogram, about wear a hole and axis (1) free-running fit, can on axis (1), horizontally slip, but do not rotate with axis (1), three road grooves are arranged in the hole of gear shift shifting block (10), be respectively high, in, low three-speed positioning groove, its further groove (11) is the positioning groove of low gear, groove (12) is the positioning groove of mid ranger, lock ball shown in Figure 1 (30) is in the high speed gear positioning groove, end has shift fork (9) about gear shift shifting block (10), (26), its effect is to make drive shaft sleeve (5), gear shift shifting block (10), middling speed drive shaft sleeve (17) three is coupled to each other side-to-side movement together, and rotation mutually is independent of each other, shift fork (9), (26) last and gear shift shifting block (10) welding when the assembling change-speed box, middling speed drive shaft sleeve (17) is cylindric, its inwall has the taper key tooth, be meshed with the taper key tooth of axis (1) right-hand member, right-hand member is a gear, drive link (15) is arranged on the gear shift shifting block (10), the interlude of drive link (15) is a rectangle frame, with gear shift shifting block (10) free-running fit, its contact surface parallels, there is high speed gear transmission gear (7) drive link (15) upper end, (20) with transmission shaft (8), there is low gear transmission gear (32) drive link (15) lower end, (24) with transmission shaft (25), transmission shaft (8), (25) free to rotate in the axle sleeve of drive link (15) end, ring washer (13), (16), (27), (29) locate transmission shaft (8) respectively, (25), string is moving about preventing, fix shaft (14), (28) effect is location drive link (a 15) perpendicular movement up and down, drive link (15) is not rotated with axis (1), the right-hand member of axis (1) has driven tooth wheels (21) and the interior grinding tooth wheel of middling speed transmission (18), sprocket wheel (23) is connected as a single entity and can goes up to slide at axis (1) and rotate, and is fixed on the change-speed box right shell body (19) by bearing (22).
The working process of automatic transmission with hydraulic torque converter is as follows: the initial gear of this change-speed box is a high speed gear, gear shift shifting block (10) is in the left position of axis (1), and drive link (15) is in the state that high speed gear transmission gear (7), (20) are meshed with driving tooth wheels (6), driven tooth wheels (21).High speed gear power transmission process: axis (1) → drive shaft sleeve (5) → driving tooth wheels (6) → transmission gear (7) → transmission shaft (8) → transmission gear (20) → driven tooth wheels (21) → sprocket wheel (23).
The working process of the automatic gear level of high speed gear: when the used application force of cyclist greater than certain value when (depending on design), the suffered axial force to the right of drive shaft sleeve (5) will overcome the elastic force of retracing spring (4), the resistance of lock ball (30) and groove, promoting gear shift shifting block (10) by shift fork (9) moves right, gear shift shifting block (10) moves right and will lock ball (30) is positioned in the middling speed groove (12), drive link (15) upward movement, make drive link (15) be in the midway location of gear shift shifting block (10), the high speed gear transmission of power is cut off, high speed gear and low gear transmission gear not with driving tooth wheels (6), driven tooth wheels (21) are meshed, gear shift shifting block (10) promotes middling speed drive shaft sleeve (17) and the interior grinding tooth wheel of middling speed (18) engagement by shift fork (26) simultaneously, the middling speed gear is kept by the axial force that middling speed drive shaft sleeve (17) is produced, the mid ranger power transmission process: axis (1) → middling speed drive shaft sleeve (17) → interior grinding tooth wheel (18) → sprocket wheel (23).
The process of the automatic upshift of mid ranger: when road conditions improve, the used application force that travels also will reduce, the suffered axial force to the right of middling speed drive shaft sleeve (17) also reduces, when axial force is lower than certain value, axial force and lock ball (30) that retracing spring (4) will overcome middling speed drive shaft sleeve (17) make gear shift shifting block (10) to left movement with the resistance of groove (12), automatically the change into higher gear position.
The process of the automatic gear down of mid ranger: when bicycle when mid ranger travels, former thereby resistance to motion is further increased owing to go up a slope, facing the wind etc., the used application force of cyclist also will increase, when application force increases to design value, the suffered axial force to the right of middling speed drive shaft sleeve (17) will overcome the elastic force of retracing spring (4).Lock ball (30) drives gear shift shifting block (10) with the resistance of groove (12) by shift fork (26) and moves right, make the drive link upward movement, the transmission gear of low gear (32), (24) will be meshed the low gear transmittance process with driving tooth wheels (6), driven tooth wheels (21): axis (1) → drive shaft sleeve (5) → driving tooth wheels (6) → transmission gear (32) → transmission shaft (25) → transmission gear (24) → driven tooth wheels (21) → sprocket wheel (23).
The process of the automatic gear level of low gear: when the resistance to motion of car reduces, the suffered axial force to the right of drive shaft sleeve (5) also will reduce, after being lower than certain value, axial force, lock ball (30) that retracing spring (4) will overcome drive shaft sleeve (5) make gear shift shifting block (10) to left movement with the resistance of groove (11), change to mid ranger automatically by low gear.
Claims (4)
1, make bicycle in motion according to road conditions, cyclist's amount of force is adjusted in the converter speed ratio of bicycle the automatic speed-changing device for bicycle of an optimum range automatically, this change-speed box has an axis (1), the one end has drive shaft sleeve (5), the driving tooth wheels (6) that retracing spring (4) arranged on the drive shaft sleeve (5) and be engaged with, there is gear shift shifting block (10) centre of axis (1), drive link (15) is arranged on the gear shift shifting block (10), the other end of axis (1) has middling speed drive shaft sleeve (17) and driven tooth wheels (21), it is characterized in that drive shaft sleeve (5) is connected with driving tooth wheels (6) with straight key tooth with axis (1) is connected with the taper key tooth, axis (1) is connected with the taper key tooth with middling speed drive shaft sleeve (17) with gear shift shifting block (10) sliding block joint, with driven tooth wheels (21) free-running fit, gear shift shifting block (10) is made sliding block joint with drive link (15).
2, change-speed box according to claim 1 is characterized in that on the inwall of the outer wall of drive shaft sleeve (5) and middling speed drive shaft sleeve (17) bevelled key tooth and keyway being arranged.
3, change-speed box according to claim 1 is characterized in that a retracing spring (4) is arranged on the drive shaft sleeve (5).
4, change-speed box according to claim 1 is characterized in that driven tooth wheels (21) can be in upward do slip rotation of axis (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93241192 CN2182142Y (en) | 1993-10-02 | 1993-10-02 | Automatic speed variator for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93241192 CN2182142Y (en) | 1993-10-02 | 1993-10-02 | Automatic speed variator for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2182142Y true CN2182142Y (en) | 1994-11-09 |
Family
ID=33815227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93241192 Expired - Fee Related CN2182142Y (en) | 1993-10-02 | 1993-10-02 | Automatic speed variator for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2182142Y (en) |
-
1993
- 1993-10-02 CN CN 93241192 patent/CN2182142Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2182142Y (en) | Automatic speed variator for bicycle | |
| CN101191555A (en) | Transfer case shifting fork mechanism | |
| CN201009982Y (en) | Speed governing non-chain bicycle | |
| CN2201327Y (en) | Multifunction convenient bicycle | |
| CN2291371Y (en) | Chainless bicycle | |
| CN210890009U (en) | Automatic double-gear speed-changing power device | |
| CN2215452Y (en) | Chain-wheel axle speed changer | |
| CN2846895Y (en) | Stepless speed changer for four wheel vehicles | |
| CN111017105B (en) | Symmetric double-motor central driving system based on intelligent transmission system | |
| CN2180585Y (en) | Closed type bicycle speed changing device | |
| CN2539689Y (en) | Magnetic force resetting solid shaft bicycle autoamtic speed variator | |
| CN2526253Y (en) | Automatic speed variator of bicycle with magnetic reset flexible transmission solid shaft | |
| CN219493023U (en) | Compact gearbox controller | |
| CN2240485Y (en) | Automatic speed-changing device for bicycle | |
| CN216306693U (en) | Improved gear shifting device of transmission | |
| CN214999165U (en) | Clutch executing device and system for bicycle transmission | |
| CN2299013Y (en) | Labour saving reducer of manpower tricycle | |
| CN2357995Y (en) | Speed changer | |
| CN2237751Y (en) | Ratchet chain disc pesed variator | |
| CN2148025Y (en) | Gear box having reverse gear for engine of motorcycle | |
| CN100357117C (en) | Bicycle speed transmission hub structure | |
| CN2177673Y (en) | Speed variation mechanism for non-chain speed variation bicycle | |
| CN2429432Y (en) | Gear drive of speed variable bicycle | |
| CN201121702Y (en) | Shifting fork mechanism of minicar transfer case | |
| CN2665460Y (en) | Novel mechanical speed regulation apparatus |
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 |