A three-speed gearbox

A technology of three-speed speed change and speed change gear, which is applied in the direction of belts/chains/gears, components with teeth, hoisting devices, etc., which can solve the problems that the vehicle cannot meet the user's needs, production, and life inconvenience, and reach the gear position Rich, simple and convenient shifting, comfortable to use

Inactive Publication Date: 2019-02-12
马平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the gearboxes of electric tricycles and four-wheelers generally adopt a gearless structure or two-speed transmission, and the maximum reduction ratio is limited to within 1:26, especially when pulling goods and climbing hills, which makes the vehicles unable to meet the needs of users. demand, bring some inconvenience to production and life

Method used

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  • A three-speed gearbox
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  • A three-speed gearbox

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Embodiment Construction

[0032] The present invention will be further described below with specific embodiment, see figure 1 -11:

[0033] A three-speed transmission gearbox, including a box body, the box body includes a left casing 1 and a right casing 2, and an input gear mechanism and a differential 3 are arranged in the casing, and the input gear mechanism and the differential are passed through three The speed change gear mechanism transmission connection, the input gear mechanism includes an input gear shaft 4 and three input gears arranged on the input gear shaft 4, which are respectively the first input gear 5, the second input gear 6 and the third input gear 7. The third-speed transmission gear mechanism includes a transmission gear shaft 8 and an output gear 10 that is arranged on the transmission gear shaft 8 and is engaged with the differential gear 9 of the differential 3 for transmission, and three gears that can realize three-speed transmission gears; intermediate sleeves are respectiv...

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Abstract

The invention belongs to the technical field of gear boxes, and particularly relates to a three-gear speed-change gear box. An input gear mechanism is in transmission connection with a differential through a three-gear speed-change gear mechanism; the three-gear speed-change gear mechanism comprises an output gear which is in engaged transmission with a differential gear of the differential and three speed-change gears; an intermediate bushing which synchronously rotates with a speed-change gear shaft and a change gear are arranged between every two adjacent speed-change gears respectively, and the change gears are connected with a shifting fork; the shifting fork controls one change gear to be simultaneously connected with the corresponding intermediate bushing and the corresponding speed-change gear, the other change gear is connected with the other intermediate bushing, one speed-change gear is in engaged transmission with the corresponding input gear, the other two speed-change gears are idle, and different speeds are output through the differential. By means of the three-gear speed-change gear box, an electric vehicle can conduct speed changes at a high speed, a middle speed and a low speed, the middle speed is adopted in the goods pulling process, the high speed is adopted in the slope climbing process, and the maximum reduction ratio can reach (1:32)-(1:40); particularly, in the slope climbing process, the electric vehicle is very powerful, and use is comfortable.

Description

Technical field: [0001] The invention belongs to the technical field of gear boxes, in particular to a three-speed gear box. Background technique: [0002] Electric tricycles and four-wheel vehicles are less effective in some complicated road conditions. Such as: quagmire, uneven road surface, large slope, soft roadbed, etc. At present, the gearboxes of electric tricycles and four-wheelers generally adopt a gearless structure or two-speed transmission, and the maximum reduction ratio is limited to within 1:26, especially when pulling goods and climbing hills, which makes the vehicles unable to meet the needs of users. Demand brings certain inconvenience to production and life. Invention content: [0003] The purpose of the present invention is to provide a three-speed gear box with large reduction ratio and strong climbing ability. [0004] The present invention is achieved like this: [0005] A three-speed transmission gear box, including a box body, an input gear mec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H37/08F16H55/17F16H63/32
CPCF16H37/0833F16H55/17F16H63/32
Inventor 马平陈勇尹安邦
Owner 马平
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