New type opeed changing transmission

A transmission device and variable speed transmission technology, applied in the direction of transmission device, belt/chain/gear, mechanical equipment, etc., can solve the problems of vehicles not being too impulsive, high speed, and fuel consumption.

Inactive Publication Date: 2003-07-16
韦琳
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AI Technical Summary

Problems solved by technology

[0007] 1. Because the transmission ratio is only controlled by the speed, the engine crankshaft speed does not reach above 6500r/min, and the transmission ratio cannot always reach the minimum. When driving on urban roads, the normal speed is often within 20-40km/n, and the engine speed is at Between 3000 and 4000r/min, the transmission ratio can only be changed between 2.3 and 1.8, while motorcycles with variable speed can be driven in third or fourth gear (that is, 1.4 or 0.8 transmission ratio). 1. The reason why the continuously variable transmission motorcycle consumes more fuel than the stepped transmission motorcycle while driving at low speed
[0008] 2. When encountering a downhill slope, if the engine speed remains unchanged, the vehicle speed may be too high; if the speed is reduced, the centrifugal force will decrease, the transmission ratio will increase immediately, and the vehicle speed will drop sharply, resulting in engine bra

Method used

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  • New type opeed changing transmission
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Examples

Experimental program
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Effect test

Embodiment Construction

[0109] 1. Auxiliary drive with fixed feedback input from the center wheel - stepless main drive transmission.

[0110] At present, all kinds of centrifugal continuously variable V-belt variable speed motorcycles use the engine speed to control the transmission ratio, and the working principle of the centrifugal continuously variable variable speed automobile introduced above is also the same, and they all belong to the single parameter control method. According to its shortcoming, redesign a kind of continuously variable speed vehicle, has adopted fixed feedback auxiliary transmission——continuously variable main transmission transmission.

[0111] See the principle of fixed feedback centrifugal continuously variable V-belt transmission Figure 8 .

[0112]The rotational speed and power of the crankshaft of the engine 2 are input by the center wheel 3 of the planetary system, the planet carrier 4 is connected with the centrifugal rotor 8 and the driving wheel 7, the ring gear ...

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Abstract

A speed transforming transmission features that different speed transforming units based on one speed-variable transmission method can be used for different machines or vehicles. One of them can implement dual-parameter control to stepless centrifugal speed reducer for high load power and high speed ratio. Another one can be used for high-power multi-shift vehicle.

Description

technical field [0001] The invention belongs to variable speed transmission device. Background technique [0002] Stepless transmissions are widely used in automobiles, motorcycles, and machinery to transmit power between the engine (motor) and the wheels (load), and have become one of the main assemblies of modern vehicles. By changing the transmission ratio, the vehicle can get different traction and speed under different usage conditions, and at the same time ensure that the engine works in the most favorable working condition range. Moreover, the continuously variable transmission device has also been paid more and more attention by the industry, and is widely used in industrial machinery. [0003] At present, the mechanical continuously variable transmission (Continuously Variable Transmission referred to as CVT) that saves fuel, reduces exhaust pollution, is convenient to operate, and travels comfortably has always been the goal pursued by people...

Claims

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Application Information

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IPC IPC(8): F16H37/04
Inventor 韦琳
Owner 韦琳
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