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A fixed center wheel and ring gear type two-wheel drive three-speed automatic transmission

A two-wheel drive, center wheel technology, applied in the direction of gear transmission, transmission, components with teeth, etc., can solve the problem of difficult to maintain the transmission, unable to realize automatic shifting, etc., to achieve reduced requirements, compact structure, variable speed stable effect

Active Publication Date: 2018-09-07
ZHANGJIAGANG CHUANJUN VEHICLE IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The internal derailleurs in the current technology generally have the following defects: 1. Manual gear shifting is required, and automatic gear shifting cannot be realized; 2. When the internal derailleur is shifted to a high gear, if the cadence is decreasing, it is difficult for the transmission to maintain a high gear

Method used

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  • A fixed center wheel and ring gear type two-wheel drive three-speed automatic transmission
  • A fixed center wheel and ring gear type two-wheel drive three-speed automatic transmission
  • A fixed center wheel and ring gear type two-wheel drive three-speed automatic transmission

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Embodiment 1

[0022] ginseng Figure 1 to Figure 4 As shown, the central wheel ring gear fixed type two-wheel drive three-speed automatic transmission in the present invention includes: a power input member 1, a central shaft 2, a ratchet sleeve 3 and a speed change mechanism arranged between the ratchet sleeve 3 and the central shaft 2 , the power input member 1 is fixedly connected to the ratchet sleeve 3, of course, in other embodiments, an overrunning clutch may also be provided between the power input member 1 and the ratchet sleeve 3, so as to ensure that the ratchet sleeve 3 is always in a rotating state. The transmission mechanism includes two sets of automatic centrifugal shifting mechanisms 4 and two sets of planetary transmissions 5 .

[0023] The planetary transmission 5 includes a first planetary transmission 50 and a second planetary transmission 51 arranged in sequence from right to left, and the first planetary transmission 50 includes a first ring gear 500, a first sun gear...

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PUM

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Abstract

The invention discloses a central wheel gear ring fixed type dual-wheel driving three-gear full-automatic transmission which comprises a power input component, a central shaft, a ratchet wheel sleeve and a speed change mechanism, wherein the speed change mechanism comprises two sets of automatic centrifuging gear shift mechanisms and two sets of planet transmissions; the planet transmissions include a first planet transmission and a second planet transmission; the automatic centrifuging gear shift mechanisms include a first automatic centrifuging gear shift mechanism and a second automatic centrifuging gear shift mechanism; the first automatic centrifuging gear shift mechanism comprises a first pawl frame, a first ratchet wheel and at least one first pawl component; the first pawl component is arranged on a first planet rack; the first ratchet wheel is arranged in the ratchet wheel sleeve; the structure of the second automatic centrifuging gear shift mechanism is as same as the structure of the first automatic centrifuging gear shift mechanism. Besides, the transmission provided by the invention can reduce the requirement for the treading frequency at medium / high gear, so that the riding is easier.

Description

【Technical field】 [0001] The invention relates to the technical field of bicycles, in particular to a fixed center wheel ring gear type two-wheel drive three-speed automatic transmission. 【Background technique】 [0002] Bicycle transmissions are divided into two types: internal transmissions and external transmissions. The external transmission uses an open chain mechanism as the transmission system. The chain is shifted to different flywheels to achieve different chain transmission ratios by switching the shifter installed in front of the bicycle. Since the external transmission is exposed, it is relatively easy to rust and is easily disturbed by external forces, so regular maintenance is often required. The internal transmission mainly uses a planetary gear mechanism as the main transmission body, which is sealed inside the ratchet sleeve and has been specially sealed by multiple layers. The material is protected, so rainwater, dust, grease, etc. cannot enter, so there is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/66F16H61/26
CPCF16H3/663F16H61/26
Inventor 黄英可
Owner ZHANGJIAGANG CHUANJUN VEHICLE IND CO LTD