CN117416464A - Variable speed shaft transmission device with sliding gear - Google Patents
Variable speed shaft transmission device with sliding gear Download PDFInfo
- Publication number
- CN117416464A CN117416464A CN202311485545.1A CN202311485545A CN117416464A CN 117416464 A CN117416464 A CN 117416464A CN 202311485545 A CN202311485545 A CN 202311485545A CN 117416464 A CN117416464 A CN 117416464A
- Authority
- CN
- China
- Prior art keywords
- gear
- transmission
- guide bearing
- bearing seat
- shaft
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 152
- 230000007246 mechanism Effects 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000009351 contact transmission Effects 0.000 abstract 1
- 230000001174 ascending effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
- B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention relates to the technical field of mechanical variable-speed transmission, and discloses a sliding gear variable speed shaft transmission device: comprises a driving gear, a transmission assembly and an output power gear disc; the transmission assembly comprises a first transmission gear, a second transmission gear, a movable sleeve, a transmission shaft and a driven gear, wherein the output power gear is in an externally exposed design mode, the output power gear and the specific speed value can be set larger, the torque output is increased, and the transmission shaft can move along the direction of the transmission shaft at the radial position of the output power gear and the first transmission gear and the second transmission gear, so that the first transmission gear and the second transmission gear can move along the direction of the transmission shaft and can realize speed change by switching contact transmission with any one gear on the output power gear, and compared with the traditional shaft transmission, the transmission assembly has the characteristic of quick speed change.
Description
Technical Field
The invention relates to a bicycle axle transmission speed change structure in the field of mechanical speed change transmission, in particular to a sliding gear speed change axle transmission device.
Background
The existing chain transmission is low in manufacturing cost, but poor in transmission stability, large in noise, unsmooth in riding, easy to take off the chain and slow in ascending speed change and riding effort are caused, the chain is lengthened along with long riding time, the chain is easy to jump, a rider steps on the bicycle to pedal empty, and the gravity center is unbalanced and easy to fall down.
The existing shaft transmission speed-changing bicycle is slow in speed change, the gear is easy to collide with the gear during speed change, the gear is easy to deform due to abrasion, the structure is complex, the maintenance difficulty is increased, and non-professional staff is difficult to maintain. When ascending a slope, the bicycle cannot be shifted in time due to slow speed change, so that a rider steps on the bicycle to step on the bicycle, and the gravity center is out of balance, so that the bicycle is easy to fall down.
Disclosure of Invention
Aiming at the defects of the background technology, the invention provides a technical scheme of a sliding gear variable speed shaft transmission device, has the advantages of simple structure, rapid gear shifting, flexible speed changing and the like, and solves the problems proposed by the background technology.
The invention adopts the following technical scheme: a sliding gear variable speed shaft transmission, characterized by: comprises a driving gear, a transmission component and an output power gear disc; the transmission assembly comprises a first transmission gear, a second transmission gear, a movable sleeve, a transmission shaft and a driven gear; the driving gear is connected with the driven gear for transmission, the first transmission gear and the second transmission gear are sleeved outside the movable sleeve, the movable sleeve is sleeved outside the transmission shaft, the first transmission gear and the second transmission gear are both provided with internal teeth and external teeth, the number of teeth of the internal teeth and the external teeth of the first transmission gear and the second transmission gear is the same, when the driven gear rotates, the transmission shaft also rotates, when the first transmission gear and/or the second transmission gear rotates, the output power gear disc also rotates, the teeth of the output power gear disc are arranged in the opposite direction of the teeth of the direction and the driving gear or the teeth of the output power gear disc are arranged in the opposite direction of the teeth of the direction and the driving gear.
Further, the transmission assembly further comprises a guide bearing and a guide bearing seat, wherein the guide bearing is sleeved outside the movable sleeve, and the guide bearing seat is sleeved outside the guide bearing.
Further, the vehicle frame is further included, one side of the guide bearing seat is connected with the vehicle frame, and the guide bearing seat can move in contact with the vehicle frame.
The guide bearing seat is also connected with a steel wire rope, and the steel wire rope controls the first transmission gear, the second transmission gear, the movable sleeve, the guide bearing and the guide bearing seat to axially move.
Further, a slide way is arranged at the joint of the guide bearing seat and the frame, the guide bearing seat is clamped on the frame, and when the guide bearing seat axially moves, the guide bearing seat slides on the slide way.
Further, the transmission assembly further comprises a spring, the movable sleeve and the spring are sleeved outside the transmission shaft, and the spring lengthens or shortens when the movable sleeve axially moves on the transmission shaft.
Furthermore, the first transmission gear and the second transmission gear are internally provided with one-way mechanisms, the one-way mechanisms enable the transmission shaft to only transmit power in one rotation direction, the power is cut off when the transmission shaft rotates in the opposite direction, and the power cannot be transmitted to the gear disc of the output power.
Further, the unidirectional mechanisms arranged on the first transmission gear and the second transmission gear are respectively provided with a pawl, and the pawls are in friction connection with the inner teeth of the first transmission gear and the second transmission gear.
Further, a bearing I is arranged in the first transmission gear, and the first transmission gear is connected with the movable sleeve through the bearing I; and a bearing II is arranged in the second transmission gear, and the second transmission gear is connected with the movable sleeve through the bearing II.
Further, the arrangement direction of the pawl of the unidirectional mechanism arranged in the first transmission gear is the same as that of the pawl of the unidirectional mechanism arranged in the second transmission gear, and the number of teeth of the first transmission gear is equal to that of the second transmission gear.
The invention has the following beneficial effects:
1. this but sliding gear variable speed shaft transmission, output power gear dish are the design mode that exposes outside, because the transmission shaft is in the radial position of output power gear dish and first drive gear, second drive gear all can follow the transmission shaft direction and remove, therefore first drive gear and second drive gear move along the transmission shaft direction and the transmission of arbitrary gear switching contact on the output power gear dish just can realize the speed change, compare this application with traditional axle transmission and have the characteristics that the speed change is fast.
2. Because the output power gear plate is in an exposed design mode, gears of the output power gear plate are concentric, the more the number of gears of the output power gear plate is, the more gears are, the larger the transmission ratio and the torque can be, so that a rider can ride more easily.
Drawings
FIG. 1 is an assembly view of the present invention;
FIG. 2 is a schematic exploded view of the transmission assembly of the present invention;
in the figure: 1. comprises a driving gear; 2. a transmission group; 21. a first transmission gear; 22. a second transmission gear; 23. a movable sleeve; 24. a transmission shaft; 25. a driven gear; 26. a guide bearing; 27. a guide bearing seat; 3. an output power gear plate; 28. a spring; 29. a pawl; 210. a bearing I; 211. bearing II.
Detailed Description
Embodiment one:
a sliding gear variable speed shaft drive knot device, characterized in that: comprises a driving gear 1, a transmission assembly 2, an output power gear disc 3 and a frame 4; the driving gear 1 is fixedly connected with the middle shaft; the middle shaft is connected with the frame 4 through a bearing, pedal cranks are arranged on two sides of the middle shaft, when the pedal cranks are rotated, the driving gear 1 rotates simultaneously, and the transmission assembly 2 comprises a first transmission gear 21, a second transmission gear 22, a movable sleeve 23, a transmission shaft 24 and a driven gear 25; the driving gear 1 is connected with the driven gear 25, the driven gear 25 is meshed with the driving gear 1 and drives when the driving gear 1 is driven, the first transmission gear 21 and the second transmission gear 22 are sleeved outside the movable sleeve 23, unidirectional mechanisms are arranged in the first transmission gear 21 and the second transmission gear 22, pawls 29 are arranged in the unidirectional mechanisms, the pawls 29 arranged in the unidirectional mechanisms in the first transmission gear 21 are in friction connection with the inner teeth of the first transmission gear 21, the pawls 29 arranged in the unidirectional mechanisms in the second transmission gear 22 are in friction connection with the inner teeth of the second transmission gear 22, the arrangement directions of the pawls 29 arranged in the unidirectional mechanisms in the first transmission gear 21 and the pawls 29 arranged in the unidirectional mechanisms in the second transmission gear 22 are the same, the number of teeth of the first transmission gear 21 and the second transmission gear 22 are equal, a bearing I210 is arranged in the first transmission gear 21, the first transmission gear 21 is connected with the movable sleeve 23 through a bearing I210, a bearing II211 is arranged in the second transmission gear 22, the second transmission gear 22 is connected with the movable sleeve 23 through the bearing II211, the first transmission gear 21 and the second transmission gear 22 are both provided with internal teeth and external teeth, the internal teeth and the external teeth of the first transmission gear 21 and the second transmission gear 22 are the same, the driven gear 25 is connected with the transmission shaft 24, when the driven gear 25 rotates, the transmission shaft 24 also rotates, when the first transmission gear 21 and/or the second transmission gear 22 rotates, the output power gear disc 3 also rotates, the teeth of the output power gear disc 3 are arranged in the direction opposite to the teeth of the driving gear 1 or the teeth of the output power gear disc 3 are arranged in the direction opposite to the teeth of the driving gear 1, when the driving gear 1 transmits power to the output power gear disc 3, the rotation direction of the output power gear disc 3 can be consistent with that of the driving gear 1, at least 2 concentric gears are arranged on the output power gear disc 3, each concentric gear is a speed change gear, the numbers of teeth of the concentric gears are the same, and the numbers of teeth of the concentric gears which are closer to the center are smaller.
Embodiment two:
the second embodiment is different from the first embodiment in that the transmission assembly 2 further comprises a guide bearing 26 and a guide bearing seat 27, the guide bearing 26 is sleeved outside the movable sleeve 23, the guide bearing seat 27 is sleeved outside the guide bearing 26, a round hole is formed in the guide bearing seat 27, the guide bearing 26 is arranged in the round hole formed in the guide bearing seat 27, one side of the guide bearing seat 27 is connected with the frame 4, a slide way 41 is formed at the joint of the guide bearing seat 27 and the frame 4, the guide bearing seat 27 is clamped on the frame 4, when the guide bearing seat 27 axially moves, the guide bearing seat 27 slides on the slide way, when the transmission assembly 2 axially moves, the guide bearing seat 27 moves along the slide way 41, the guide bearing seat 27 is further connected with a wire rope, and when the wire rope tightens or loosens the wire rope, the first transmission gear 21, the second transmission gear, the movable sleeve 23, the guide bearing 26 and the guide bearing seat 27 axially move along the direction of the transmission shaft, so that the first transmission gear 21 and the second transmission gear 22 or the second transmission gear 22 do not have the same gear number as the next gear wheel disc 3.
Embodiment III:
the third embodiment is different from the second embodiment in that the vehicle further comprises a vehicle frame 4, one side of the guide bearing seat 27 is connected with the vehicle frame 4, the guide bearing seat 27 can move in contact with the vehicle frame 4, a slide way 41 is arranged at the joint of the guide bearing seat 27 and the vehicle frame 4, the guide bearing seat (27) is clamped on the vehicle frame 4, and the guide bearing seat 27 slides on the slide way when the guide bearing seat 27 moves axially.
Embodiment four:
the fourth embodiment differs from the first embodiment in that the transmission assembly 2 further includes a spring 28, the movable sleeve 23 and the spring (28) are sleeved outside the transmission shaft 24, and the spring 28 is lengthened or shortened when the movable sleeve 23 moves axially on the transmission shaft 24.
Claims (10)
1. A sliding gear variable speed shaft transmission, characterized by: including driving gear (1), drive assembly (2), output power gear dish (3), drive assembly (2) are including first drive gear (21), second drive gear (22), movable sleeve (23), transmission shaft (24) and driven gear (25), driving gear (1) are connected the transmission with driven gear (25), first drive gear (21) and second drive gear (22) cover are outside movable sleeve (23), movable sleeve (23) cover is outside transmission shaft (24), first drive gear (21) and second drive gear (22) all are provided with internal tooth and external tooth, the number of teeth that internal tooth and external tooth that first drive gear (21) and second drive gear (22) set up is the same, when driven gear (25) rotate, transmission shaft (24) also rotate, when first drive gear (21) and/or second drive gear (22) rotate, output power gear dish (3) also rotate, the tooth of output power gear dish (3) is arranged towards opposite direction with the tooth of driving gear (1) towards the opposite direction of tooth or the opposite direction of tooth of the opposite direction of the power gear (1).
2. A sliding gear variable speed shaft transmission according to claim 1, wherein: the transmission assembly (2) further comprises a guide bearing (26) and a guide bearing seat (27), the guide bearing (26) is sleeved outside the movable sleeve (23), and the guide bearing seat (27) is sleeved outside the guide bearing (26).
3. A sliding gear variable speed shaft transmission according to claim 2, wherein: the vehicle further comprises a vehicle frame (4), one side of the guide bearing seat (27) is connected with the vehicle frame (4), and the guide bearing seat (27) can move in contact with the vehicle frame (4).
4. A sliding gear variable speed shaft transmission according to claim 2, wherein: the guide bearing seat (27) is also connected with a steel wire rope, and the steel wire rope controls the first transmission gear (21), the second transmission gear (22), the movable sleeve (23), the guide bearing (26) and the guide bearing seat (27) to axially move.
5. A sliding gear variable speed shaft transmission according to claim 3, wherein: the connecting part of the guide bearing seat (27) and the frame (4) is provided with a slide way (41), the guide bearing seat (27) is clamped on the frame (4), and when the guide bearing seat (27) axially moves, the guide bearing seat (27) slides on the slide way.
6. A sliding gear variable speed shaft transmission according to claim 1, wherein: the transmission assembly (2) further comprises a spring (28), the spring (28) is sleeved outside the transmission shaft (24), and the spring (28) is lengthened or shortened when the movable sleeve (23) axially moves on the transmission shaft (24).
7. A sliding gear variable speed shaft transmission according to claim 1, wherein: the first transmission gear (21) and the second transmission gear (22) are internally provided with one-way mechanisms, the one-way mechanisms enable the transmission shaft (24) to only transmit power in one rotation direction, and power is cut off when the transmission shaft rotates in the opposite direction, so that the power cannot be transmitted to the output power gear disc (3).
8. A sliding gear variable speed shaft transmission according to claim 7, wherein: the unidirectional mechanisms arranged on the first transmission gear (21) and the second transmission gear (22) are respectively provided with a pawl (29), and the pawls (29) are in friction connection with the inner teeth of the first transmission gear (21) and the second transmission gear (22).
9. A sliding gear variable speed shaft transmission according to claim 1, wherein: the first transmission gear (21) is internally provided with a bearing I (210), the first transmission gear (21) is connected with the movable sleeve (23) through the bearing I (210), the second transmission gear (22) is internally provided with a bearing II (211), and the second transmission gear (22) is connected with the movable sleeve (23) through the bearing II (211).
10. A sliding gear variable speed shaft transmission according to claim 8, wherein: the arrangement direction of a pawl (29) of a unidirectional mechanism arranged in the first transmission gear (21) is the same as that of a pawl (29) of a unidirectional mechanism arranged in the second transmission gear (22), and the number of teeth of the first transmission gear (21) and the number of teeth of the second transmission gear (22) are equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311485545.1A CN117416464A (en) | 2023-11-07 | 2023-11-07 | Variable speed shaft transmission device with sliding gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311485545.1A CN117416464A (en) | 2023-11-07 | 2023-11-07 | Variable speed shaft transmission device with sliding gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117416464A true CN117416464A (en) | 2024-01-19 |
Family
ID=89524671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311485545.1A Pending CN117416464A (en) | 2023-11-07 | 2023-11-07 | Variable speed shaft transmission device with sliding gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117416464A (en) |
-
2023
- 2023-11-07 CN CN202311485545.1A patent/CN117416464A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105156664B (en) | Multi-gear transmission and center wheel pawl installation structure used in same | |
| CN110997472B (en) | Drive assembly and vehicle | |
| CN106741562B (en) | Linear treading single-wheel direct-drive gear ring center wheel fixed transmission | |
| CN106494563B (en) | Fixed single round of ring gear centre wheel directly drives multi-gear full-automatic derailleur | |
| CN106627975B (en) | Single-wheel direct-drive transmission is trampled to straight line | |
| CN214690026U (en) | Dual-mode two-speed hub motor | |
| CN106763570B (en) | Single-wheel direct-drive multi-gear full-automatic transmission with fixed central wheel | |
| CN106481754B (en) | A kind of multi gear automatic internal speed variator of real | |
| CN106763569B (en) | Gear ring double-center-wheel fixed single-wheel direct-drive multi-gear full-automatic transmission | |
| CN106741561B (en) | Three-gear full-automatic transmission | |
| CN117416464A (en) | Variable speed shaft transmission device with sliding gear | |
| CN109278932B (en) | Pedal bearing driving device for bicycle | |
| CN217108055U (en) | Turnover type speed change mechanism | |
| CN206361097U (en) | A kind of multi gear automatic internal speed variator of real | |
| CN113048199A (en) | Clutch executing device and system for bicycle transmission | |
| CN113086080A (en) | Dual-mode two-speed hub motor | |
| CN113048162A (en) | Clutch mechanism and gearbox of bicycle speed changing system | |
| CN111422296A (en) | Combined pawl transmission | |
| CN108382525B (en) | Single-wheel driving linear treading two-gear transmission | |
| CN105857507A (en) | Novel bicycle internal transmission hub | |
| CN206361100U (en) | A kind of double centre wheels of gear ring fix single-wheel and directly drive multi gear fully-automatic gearbox | |
| CN214999165U (en) | Clutch executing device and system for bicycle transmission | |
| RU2760596C1 (en) | Bicycle transmission system | |
| CN212220487U (en) | Combined pawl transmission | |
| CN2526253Y (en) | Automatic speed variator of bicycle with magnetic reset flexible transmission solid shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication |