Linear pedaling single-wheel direct drive transmission

A technology of transmission and planetary transmission, applied in the direction of vehicle gearbox, wheel transmission, transportation and packaging, etc., can solve the problems of inability to realize automatic shifting and difficult to maintain transmission, and achieve compact structure, lower requirements, and reliable shifting. Effect

Active Publication Date: 2017-05-10
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 transmissions in the current technology generally have the following defects: 1. Manual shifting is required, and automatic shifting cannot be realized; 2. When the internal transmission is shifted to a high-speed gear, if the cadence is decreasing, it is difficult for the transmission to maintain the high-speed gear.

Method used

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  • Linear pedaling single-wheel direct drive transmission
  • Linear pedaling single-wheel direct drive transmission
  • Linear pedaling single-wheel direct drive transmission

Examples

Experimental program
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Effect test

Embodiment 1

[0024] ginseng Figure 1 to Figure 5 As shown, a linear stepping single-wheel direct drive transmission includes: a central shaft 1, a hub 2 and a speed change mechanism arranged between the central shaft 1 and the hub 2, the central shaft 1 is a power input member, and the hub 2 It is a power output member. Input wheels 11 are provided at both ends of the central shaft 1, and a first overrunning clutch 12 is provided between the input wheels 11 and the central shaft 1. In this embodiment, the input wheels 11 and The first overrunning clutch 12 forms an assembly, and the speed change mechanism includes two sets of planetary transmissions (the first planetary transmission 3 and the second planetary transmission 4) and two sets of automatic centrifugal shifting mechanisms (the first automatic centrifugal shifting mechanism 5 and The second automatic centrifugal shift mechanism 6).

[0025] The first planetary transmission 3 and the second planetary transmission 4 are arranged s...

Embodiment 2

[0031] The rest of the structure of the straight-line pedaling single-wheel direct-drive transmission in this embodiment is the same as that of the straight-line pedaling single-wheel direct-drive transmission in Embodiment 1, the difference is that in Embodiment 1, the central shaft and the first ring gear is fixedly connected, and in embodiment 2, the central shaft is fixedly connected with the second assembly. Of course, in other embodiments, the first planetary carrier and the second ring gear can also be arranged separately and fixedly connected to the central shaft respectively, and the present invention can also be realized. The first frame fixing part is fixedly connected or integrally formed with the first assembly. Of course, in other embodiments, the first center wheel and the second center wheel can also be separately provided, and the first center wheel is fixed to the first frame. The second center wheel is fixedly connected or integrally formed with the second f...

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Abstract

The invention discloses a linear pedaling single-wheel direct drive transmission which comprises a center shaft, an input wheel, a wheel hub, two sets of planetary transmissions and two sets of automatic centrifugal gear-shifting mechanisms, wherein the planetary transmissions comprise a first planetary transmission and a second planetary transmission; the first planetary transmission comprises a first planet carrier, a first planet wheel, a first gear ring and a first center wheel; the second planetary transmission comprises a second planet carrier, a second planet wheel, a second gear ring and a second center wheel; the center shaft is fixedly connected with the first gear ring or is simultaneously and fixedly connected with the first planet carrier and the second gear ring; the automatic centrifugal gear-shifting mechanisms comprise a first automatic centrifugal gear-shifting mechanism and a second automatic centrifugal gear-shifting mechanism; the first automatic centrifugal gear-shifting mechanism is arranged between the wheel hub and a second assembling unit; the second automatic centrifugal gear-shifting mechanism is arranged between the wheel hub and the first gear ring. According to the transmission disclosed by the invention, the requirement on the pedaling frequency can be reduced at a high gear.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of bicycles, in particular to a single-wheel direct-drive transmission for linear pedaling. [0003] 【Background technique】 [0004] Bicycle transmissions are divided into two types: internal transmissions and external transmissions. The external transmission uses an open chain mechanism as the transmission system. By switching the shifter installed in front of the bicycle, the chain is changed to different flywheels to achieve different chain transmission ratios. Since the external derailleur is exposed, it is relatively easy to rust and is easily disturbed by external forces, so regular maintenance is often required. The internal derailleur mainly uses a planetary gear mechanism as the main transmission body, which is sealed inside the hub and passed through multiple layers of special sealing materials. Protection, so rainwater, dust, grease, etc. cannot enter, so there is no need for regular maint...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M11/18
CPCB62M11/18
Inventor 黄英可
Owner ZHANGJIAGANG CHUANJUN VEHICLE IND CO LTD
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