WO2014026413A1 - 一种增力自行车中轴组件 - Google Patents

一种增力自行车中轴组件 Download PDF

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Publication number
WO2014026413A1
WO2014026413A1 PCT/CN2012/080881 CN2012080881W WO2014026413A1 WO 2014026413 A1 WO2014026413 A1 WO 2014026413A1 CN 2012080881 W CN2012080881 W CN 2012080881W WO 2014026413 A1 WO2014026413 A1 WO 2014026413A1
Authority
WO
WIPO (PCT)
Prior art keywords
long sleeve
gear
bicycle
power
assembly according
Prior art date
Application number
PCT/CN2012/080881
Other languages
English (en)
French (fr)
Inventor
栗运岭
赵胜乐
Original Assignee
Li Yunling
Zhao Shengle
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CN 201220408533 external-priority patent/CN202727880U/zh
Priority claimed from CN2012102925421A external-priority patent/CN102785753A/zh
Application filed by Li Yunling, Zhao Shengle filed Critical Li Yunling
Publication of WO2014026413A1 publication Critical patent/WO2014026413A1/zh

Links

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
    • B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
    • B62M6/40—Rider propelled cycles with auxiliary electric motor
    • B62M6/55—Rider propelled cycles with auxiliary electric motor power-driven at crank shafts parts

Definitions

  • the present invention relates to a bicycle center axle assembly, and more particularly to a center axle assembly for a booster bicycle. Background technique
  • a center shaft for receiving torque from a torque converter to provide a boost to a bicycle is disclosed in Patent Publication No.: CN 101683881 B.
  • the disclosed central shaft has a sawtooth clutch, which is used to realize the bicycle's backward movement.
  • the bicycle is generally not required to be reversed, and the test proves that the reverse effect is not good, and the sawtooth clutch affects the boosting effect.
  • the structure of the central axis is complicated, which increases the complexity of the vehicle body and the complexity of the assembly, and the installation is inconvenient. Therefore, the inventors have improved the structure of the center shaft. Summary of the invention
  • An object of the present invention is to provide a bicycle center shaft assembly that can receive an external torque to increase the force of the bicycle and that is light in weight and assembled.
  • a booster bicycle center shaft assembly comprising:
  • the long sleeve is movably engaged with the middle shaft, and the sprocket is mounted on a connecting plate of the long sleeve.
  • the booster gear is mounted to the long sleeve and axially positioned by the shaft stop.
  • the booster gear is mounted to the long sleeve by a keyway fit.
  • the key is a round flat key.
  • the booster gear has a plurality of through holes.
  • the gusset of the long sleeve has a left-handed internal thread.
  • a bearing is further mounted between the connecting disc of the long sleeve and the booster gear.
  • a bearing seat is further mounted between the connecting disc of the long sleeve and the bearing.
  • the bicycle Since the booster gear directly transmits the external torque to the center shaft through the long sleeve, the bicycle is finally energized by the sprocket, the unnecessary components are reduced, the boosting effect is better, and the self-weight is lighter. Since the assembly process basically uses a threaded connection and a keyway connection, the operation unit is single. Since the ratchet is installed in the sprocket, it does not affect normal human riding.
  • the force-increasing gear has a plurality of through holes, the self-weight is reduced.
  • the assembly is more convenient.
  • FIG. 1 is a cross-sectional view of a center shaft assembly of an embodiment of the present invention.
  • serial number is: 1-Center shaft 2-long sleeve 3-force gear 4-key 5-axis gear 6-bearing 7- sprocket 8-bearing 9-through hole 10-connecting plate.
  • the central shaft 1 is inserted into the long sleeve 2 to form a dynamic fit with the long sleeve 2.
  • the long sleeve 2 is mounted in order: a bearing housing 6, a bearing 8, a booster gear 3, and a shaft stop 5.
  • the sprocket 7 has been mounted therein with a ratchet (not shown), from the left side in Fig. 1, through the external thread of the shaft head of the center shaft 1 and the left-handed internal thread of the lands 10 of the long sleeve 2 are connected and fixed.
  • the bearing block 6 and/or the bearing 8 can also be pre-mounted in a device similar to a bicycle five-way, or other device that houses the axle assembly, but pre-installed on the center axle assembly, There is an overall installation that facilitates the assembly of the center shaft, so it is more advantageous.
  • the sprocket 7 can also be mounted on the lands of the long sleeve 2 by bolting, riveting, welding, etc., but for the purpose of installation and maintenance, it is obviously more advantageous to use a threaded connection.
  • the booster tooth The wheel 3 is mounted by the flat key 4, and the flat key 4 is preferably a round flat key, so that the force-enhancing gear 3 is more convenient to assemble.
  • the booster gear can also be mounted to the long sleeve 2 by welding, splines, and the like.
  • the shaft stopper 5 has an internal thread
  • the right side of the long sleeve 2 has an external thread, so that the shaft stopper 5 is screwed to a position in close contact with the booster gear 3, and the booster gear 3 is axially positioned.
  • the shaft stop 5 can also be welded to the long sleeve 2.
  • the long sleeve 2 can be rotated to drive the sprocket mounted on the long sleeve connecting plate to drive the bicycle forward, thereby achieving the effect of increasing the force.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

一种增力自行车中轴组件，包括：中轴（1）、长套筒（2）、增力齿轮（3）、轴挡圈（5）、链轮（7），其中长套筒（2）的一端为连接盘（10），链轮（7）内安装有棘轮，所述长套筒（2）与所述中轴（1）动配合，所述链轮（7）安装在所述长套筒（2）的连接盘（10）上，所述增力齿轮（3）安装到所述长套筒（2）上，并通过所述轴档圈（5）进行轴向定位。该增力自行车中轴组件结构简单、操作方便且增力效果较好。

Description

一种增力自行车中轴组件
技术领域
本发明涉及一种自行车中轴组件，特别涉及一种用于增力自行车的中轴组 件。 背景技术
目前， 自行车已经超越了单纯的交通工具， 成为休闲、 竟赛工具， 技术人 员也在不断对其进行改进。现有改进方案中， 一个重要方向就是将骑行过程中 由于骑行人的姿势变化或者道路的颠簸产生的重力变化转化为力矩，提供给自 行车中轴， 为自行车增力。
在专利公开号： CN 101683881 B中公开了一种中轴， 用于接收来自于力 矩转换器的力矩， 为自行车提供增力。 所公开的中轴存在锯齿离合器， 作用是 实现自行车的倒退， 但对于长途旅行， 特别是自行车竟赛中， 一般不需要自行 车倒退， 且试验证实倒车效果不好， 而锯齿离合器反而影响增力效果， 且使得 中轴结构复杂， 增加了车体自重和装配的复杂程度， 安装不方便。 因此， 本发 明人对该中轴的结构进行了改进。 发明内容
本发明的目的在于提供一种能够接受外部力矩为自行车增力， 且自重轻、 装配筒单的自行车中轴组件。
为实现上述目的， 本发明的实施例提供了如下技术方案：
一种增力自行车中轴组件， 包括：
中轴；
长套筒， 其一端为连接盘；
增力齿轮；
轴挡圏；
链轮， 其内安装有棘轮；
所述长套筒与所述中轴动配合， 所述链轮安装在所述长套筒的连接盘上， 所述增力齿轮安装到所述长套筒上， 并通过所述轴挡圏进行轴向定位。
可选择地， 所述增力齿轮是通过键槽配合安装到所述长套筒上。
可选择地， 所述键为圓头平键。
可选择地， 所述增力齿轮上具有多个通孔。
可选择地， 所述长套筒的连接盘上具有左旋细牙内螺纹。
可选择地， 所述长套筒的连接盘与所述增力齿轮之间还安装有轴承。
可选择地， 所述长套筒的连接盘与所述轴承之间还安装有轴承座。
由于增力齿轮直接将外部的力矩通过长套筒传递给中轴，最终通过链轮实 现对自行车增力， 减少了非必需部件， 增力效果更好， 并且自重更轻。 由于装 配过程基本采用螺纹连接、 键槽连接， 操作筒单。 由于链轮内安装了棘轮， 并 不影响正常人力骑行。
进一步地， 由于增力齿轮上具有多个通孔， 降低了自重。
进一步地， 由于中轴组件上预装了轴承和轴承座， 使得装配更方便。
附图说明
下面结合附图对本发明的具体实施方式做进一步详细说明， 其中： 图 1是本发明的实施例的中轴组件剖视图。
上图中序号： 1-中轴 2-长套筒 3-增力齿轮 4-键 5-轴挡圏 6-轴承座 7- 链轮 8-轴承 9-通孔 10-连接盘。 具体实施方式
由图 1可见， 中轴 1插入长套筒 2内， 与长套筒 2形成动配合。 按照图 1 中由左到右的顺序， 长套筒 2上按次序安装有： 轴承座 6、 轴承 8、 增力齿轮 3、 轴挡圏 5。 链轮 7其内已经安装有棘轮（未示出） ， 从图 1 中的左侧， 通 过中轴 1的轴头外螺纹和长套筒 2的连接盘 10的左旋内螺纹连接并固定。 本 领域普通技术人员能够很容易地想象， 轴承座 6和 /或轴承 8同样能够预先安 装在类似于自行车五通， 或者其它容纳中轴组件的装置中，但预装在中轴组件 上， 更有便于中轴组件的整体安装， 因此更具优势。 同样， 链轮 7还能够通过 螺栓连接、 铆接、 焊接等其它方式安装在长套筒 2的连接盘上， 但出于安装、 维修方便的目的， 采用螺纹连接的方式显然更具优势。 在本实施例中， 增力齿 轮 3是通过平键 4安装上的，优选平键 4为圓头平键，使得增力齿轮 3装配更 方便。 但本领域普通技术人员能够想象， 增力齿轮还能够通过焊接、 花键等方 式安装到长套筒 2上。优选轴挡圏 5具有内螺纹，长套筒 2的右侧具有外螺纹， 使轴挡圏 5被拧至与增力齿轮 3紧贴的位置，对增力齿轮 3进行轴向定位。 当 然， 轴挡圏 5同样能够被焊接在长套筒 2上。
当增力齿轮 3由增力矩带动转动时， 即可通过带动长套筒 2转动， 进而带 动装在长套筒连接盘上的链轮转动，从而带动自行车前行，实现了增力的效能。
当人力骑行时， 由于长套筒 2连接盘上安装的链轮具有棘轮， 限制了长套 筒 2转动方向， 所以不会阻碍正常骑行。
虽然本发明是结合以上实施例进行描述的，但本发明并不限定于上述实施 例， 而只受权利要求的限定， 本领域普通技术人员能够容易地对其进行修改和 变化， 但并不离开本发明的实质构思和范围。

Claims

权 利 要 求
1. 一种增力自行车中轴组件， 包括：
中轴；
长套筒， 其一端为连接盘；
增力齿轮；
轴挡圏；
链轮， 其内安装有棘轮；
所述长套筒与所述中轴动配合， 所述链轮安装在所述长套筒的连接盘上， 所述增力齿轮安装到所述长套筒上， 并通过所述轴挡圏进行轴向定位。
2. 根据权利要求 1 所述的自行车中轴组件， 其特征在于， 所述增力齿轮 是通过键槽配合安装到所述长套筒上。
3. 根据权利要求 2所述的自行车中轴组件， 其特征在于， 所述键为圓头 平键。
4. 根据权利要求 1 所述的自行车中轴组件， 其特征在于， 所述增力齿轮 上具有多个通孔。
5. 根据权利要求 1 所述的自行车中轴组件， 其特征在于， 所述长套筒的 连接盘上具有左旋细牙内螺纹。
6. 根据权利要求 1 所述的自行车中轴组件， 其特征在于， 所述长套筒的 连接盘与所述增力齿轮之间还安装有轴承。
7. 根据权利要求 6所述的自行车中轴组件， 其特征在于， 所述长套筒的 连接盘与所述轴承之间还安装有轴承座。
PCT/CN2012/080881 2012-08-16 2012-08-31 一种增力自行车中轴组件 WO2014026413A1 (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN 201220408533 CN202727880U (zh) 2012-08-16 2012-08-16 一种增力自行车中轴组件
CN201220408533.X 2012-08-16
CN2012102925421A CN102785753A (zh) 2012-08-16 2012-08-16 一种增力自行车中轴组件
CN201210292542.1 2012-08-16

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WO2014026413A1 true WO2014026413A1 (zh) 2014-02-20

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1981737A (en) * 1933-08-21 1934-11-20 Daniel V Mcilwain Bicycle
CN2143197Y (zh) * 1992-11-12 1993-10-06 王汛利 惯性三飞轮自行车省力器
CN1086486A (zh) * 1993-08-18 1994-05-11 匡自革 自动增力自行车
CN2571670Y (zh) * 2002-05-13 2003-09-10 陈桂芝 运动自行车
CN2797175Y (zh) * 2005-05-27 2006-07-19 郭井新 助力自行车
JP2009208491A (ja) * 2008-02-29 2009-09-17 Ryoichi Uekakiuchi 回転駆動装置及びこれを備えた自転車
CN101683881A (zh) * 2008-09-27 2010-03-31 李晓涛 具有助力装置的脚踏车

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1981737A (en) * 1933-08-21 1934-11-20 Daniel V Mcilwain Bicycle
CN2143197Y (zh) * 1992-11-12 1993-10-06 王汛利 惯性三飞轮自行车省力器
CN1086486A (zh) * 1993-08-18 1994-05-11 匡自革 自动增力自行车
CN2571670Y (zh) * 2002-05-13 2003-09-10 陈桂芝 运动自行车
CN2797175Y (zh) * 2005-05-27 2006-07-19 郭井新 助力自行车
JP2009208491A (ja) * 2008-02-29 2009-09-17 Ryoichi Uekakiuchi 回転駆動装置及びこれを備えた自転車
CN101683881A (zh) * 2008-09-27 2010-03-31 李晓涛 具有助力装置的脚踏车

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