CN2574985Y - Honeycomb type sinkproof ship - Google Patents
Honeycomb type sinkproof ship Download PDFInfo
- Publication number
- CN2574985Y CN2574985Y CN 02253417 CN02253417U CN2574985Y CN 2574985 Y CN2574985 Y CN 2574985Y CN 02253417 CN02253417 CN 02253417 CN 02253417 U CN02253417 U CN 02253417U CN 2574985 Y CN2574985 Y CN 2574985Y
- Authority
- CN
- China
- Prior art keywords
- bevel gear
- shaft
- middle shaft
- axis
- bicycle
- 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
Images
Abstract
The utility model provides a drive device of a middle shaft of a bicycle. The utility model comprises the middle shaft of a bicycle, bearings 2 arranged on both ends of the middle shaft, a bevel gear 5 arranged on the middle shaft, a drive shaft 10 of a back shaft, a bevel gear 3 on the drive shaft 10 of a back shaft, a box body 7 for sealing the drive device, a right connecting sleeve 6 and a right connecting rod in the right connecting sleeve, wherein, the middle part of the middle shaft 1 is provided with mutually adjoining positioning rabbet deck 101 and a concentric rabbet deck 102. The bevel gear 5 of the middle shaft is pressed and matched on the middle shaft. The drive shaft 10 and the bevel gear 3 are connected by two round keys. Because the designs of the bevel gear 5 and the middle shaft 1 are reasonable, press matching can not be damaged by axial force and a drive ratio is increased. Therefore, the utility model has the advantages of handy ride and long service life.
Description
Technical field
The utility model belongs to the bicycle field, particularly a kind of bicycle middle shaft driving device.
Background technology
Present bicycle mostly is the wheel chain transmission, and the effort of riding relatively, and maintenance workload is big is reinstalled very trouble after falling chain, and easily hand made very dirty.
Utility model patent 01211991.1 " shaft drive in the labour-saving bicycle " discloses shaft drive in a kind of effort-saving, with casing axis and the bevel gear that is contained on this axis are encapsulated, this bevel gear and the bevel gear that leads on the transmission shaft termination of backshaft transmission device are meshed.Axis and bevel gear are to adopt key or screw bonded assembly.Facts have proved that this middle shaft drive can reach the labour-saving purpose.But also find simultaneously to have such defective, bevel gear is contained on the end of axis, the space here is limited, and bevel gear can only be done smallerly; Connect bevel gear and axis with key, can not solve the influence of axial force to bevel gear, if connect with screw, axial force and diametral load all can make screw impaired, thereby influence its service life.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, long service life, driving efficiency height, more convenient, the fast speed bicycle middle shaft driving device of riding.
The utility model is achieved in that it comprises axis, is contained in the bearing at these axis two ends, middle shaft bevel gear, and transmission shaft and bevel gear thereof and casing is characterized in that:
(1) middle part of described axis is provided with the positioning spigot platform that adjoins each other, concentric stopping table,
(2) described middle shaft bevel gear and axis are made force fit, and the bevel gear on this bevel gear and the transmission shaft is meshed.
According to bicycle middle shaft driving device of the present utility model, be connected with two symmetrical circular keys between described transmission shaft and the transmission shaft bevel gear.
According to bicycle middle shaft driving device of the present invention; bevel gear is press fit on the axis; guarantee that with concentric stopping table bevel gear and axis are concentric, guarantee the correct location of bevel gear, and protection axis and bevel gear force fit are not subjected to the infringement of axial force with the positioning spigot platform.Because space, casing middle part can be done greatlyyer, therefore, bevel gear also can be done greatlyyer simultaneously.So that improved the intensity and the transmitting ratio of bevel gear, thereby service life and driving efficiency have been improved.It is more light, quick to ride.
Description of drawings
Accompanying drawing 1 is the part sectional view of the later-model middle shaft drive of this reality.
Accompanying drawing 2 is for being equipped with the axis scheme drawing of bevel gear 5.
The specific embodiment
As described in Fig. 1,2, bicycle middle shaft driving device of the present utility model comprises axis 1, is contained in the bearing 2 at these axis 1 two ends, middle shaft bevel gear 5, and transmission shaft 10 and bevel gear 3 thereof and casing 7 are characterized in:
(1) middle part of described axis 1 is provided with the positioning spigot platform 101 that adjoins each other, concentric stopping table 102,
(2) described middle shaft bevel gear 5 and axis are made force fit, and the bevel gear 3 on this bevel gear 5 and the transmission shaft 10 is meshed.
As shown in Figure 1, be connected with two symmetrical circular keys 11 between the transmission shaft 10 of bicycle middle shaft driving device of the present utility model and the transmission shaft bevel gear 3.This bevel gear 3 is connected by bearing 4, casing 7 and does rotatable the cooperation, and right transmission shaft 6 is connected with bicycle rear axle driving device (not shown).
Adopt the bicycle of bicycle middle shaft driving device of the present utility model, drive axis with pedal and rotate, bevel gear 5 rotates thereupon, drives and these bevel gear 5 ingear bevel gears 3 and transmission shaft 10 rotations, transmission shaft is delivered to rear axle with rotating torque, drives rear wheel and rotates.
Because bevel gear of the present utility model installation site is suitable, axis is reasonable in design, guarantees shaft drive driving efficiency height in this, long service life, thereby it is brisk laborsaving that cycling is got up, and maintenance load significantly reduces, and reaches the purpose of laborsaving, saving of labor, minimizing expense.
Claims (2)
1. bicycle middle shaft driving device comprises axis (1), is contained in the bearing (2) at this axis (1) two ends, middle shaft bevel gear (5), and transmission shaft (10) and bevel gear (3) thereof and casing (7) is characterized in that:
(1) middle part of described axis (1) is provided with the positioning spigot platform (101) that adjoins each other, concentric stopping table (102),
(2) described middle shaft bevel gear (5) and axis are made force fit, and the bevel gear (3) on this bevel gear (5) and the transmission shaft (10) is meshed.
2. bicycle middle shaft driving device according to claim 1 is characterized in that being connected with two symmetrical circular keys (11) between described transmission shaft (10) and the transmission shaft bevel gear (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02253417 CN2574985Y (en) | 2002-08-29 | 2002-08-29 | Honeycomb type sinkproof ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02253417 CN2574985Y (en) | 2002-08-29 | 2002-08-29 | Honeycomb type sinkproof ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2574985Y true CN2574985Y (en) | 2003-09-24 |
Family
ID=33722575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02253417 Expired - Fee Related CN2574985Y (en) | 2002-08-29 | 2002-08-29 | Honeycomb type sinkproof ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2574985Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105314056A (en) * | 2015-09-29 | 2016-02-10 | 北京摩拜科技有限公司 | A chainless bicycle and a transmission system thereof |
-
2002
- 2002-08-29 CN CN 02253417 patent/CN2574985Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105314056A (en) * | 2015-09-29 | 2016-02-10 | 北京摩拜科技有限公司 | A chainless bicycle and a transmission system thereof |
| CN105314056B (en) * | 2015-09-29 | 2018-05-01 | 北京摩拜科技有限公司 | Chain-less bicycle and its transmission system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201678014U (en) | Super-silent centrally-mounted power device for electric bicycle | |
| CN202541770U (en) | Foot-operated and electrically-driven mechanism | |
| CN2574985Y (en) | Honeycomb type sinkproof ship | |
| CN2291371Y (en) | Chainless bicycle | |
| CN2878189Y (en) | Improved electric bicycle driving device | |
| CN2470150Y (en) | Middle-shaft drive device of effort-saving bicycle | |
| CN2637233Y (en) | Device for direct driving acting wheel peripheral edge | |
| CN2034960U (en) | Drive unit for bicycle | |
| CN2756549Y (en) | Driving wheel hub of electric vehicle | |
| CN2526546Y (en) | Speed reducer for electric submersible screw pump | |
| CN2518314Y (en) | Curtain-rolling machine for greenhouse | |
| CN2395977Y (en) | Transmission mechanism for electric car | |
| CN2510393Y (en) | Two-wheel motorcycle axle driver | |
| CN2736245Y (en) | Power transmitting means of bicycle | |
| CN2556126Y (en) | Improved marine gearbox (5) | |
| CN2880654Y (en) | Rear forks rotation centre motorcycle structure positioned by speed changer output shaft axle centre | |
| CN201205968Y (en) | Bicycle gear | |
| CN202642023U (en) | Bicycle hydraulic transmission system | |
| CN2851095Y (en) | Booster of bicycle for acceleration | |
| CN2499265Y (en) | Transversely fixed shaft driving device for positice tricycle motor engine | |
| CN2815862Y (en) | Two-wheel drive mechanism of bicycle | |
| CN2689174Y (en) | Mileage accounting device on rotating shaft | |
| CN2344274Y (en) | Bicycle driving equipment without chain and gear transmission | |
| CN2038472U (en) | New style bicycle driving by gear | |
| CN2271639Y (en) | Gear driving chainless bicycle driving gear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Kong Jinman Document name: Notification of Termination of Patent Right |
|
| 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 |