Gear, cam stepless transmissions and vehicles thereof

A continuously variable transmission and continuously variable speed technology, applied in the direction of belts/chains/gears, components with teeth, transmission devices, etc., can solve the problems of speed loss, power loss, and the inability to achieve automatic transmission of mechanical shift cars, etc. Achieve the effect of simple speed control mechanism and oil saving

Inactive Publication Date: 2015-12-09
刘光全
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, when equipped with a "gear indicator", mechanical shift cars cannot achieve automatic shifting, and manual shifting is guided via the "gear indicator"
Therefore, power is interrupted during shifting, that is, stepless shifting is difficult to achieve, resulting in power loss, speed loss, and speed difference loss
At the same time, optimal oil economy matching between engine speed and car operating speed is difficult to achieve due to the stepped transmission
[0010] Furthermore, gear transmissions are stepped transmissions which, when used in automobiles, contain three, four, five, or up to a dozen gears, thereby causing inherent difficulties in automatic transmissions
More gears mean more complex automatic transmissions, higher manufacturing costs and more difficult maintenance
When changing speed, the gear position causes a power interruption

Method used

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  • Gear, cam stepless transmissions and vehicles thereof
  • Gear, cam stepless transmissions and vehicles thereof
  • Gear, cam stepless transmissions and vehicles thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0123] Example 1: Z 1 = Z 2 =50 teeth, and the modulus m=2. Z 1 Drive Z 2 Turn, Z 1 Turn clockwise, the helical direction of the helical tooth is left-handed, and β=36 degrees. Whenever Z 1 Turn around, Z 2 along the Z 1 The movement distance L of the axis is 20mm.

[0124] Find: in Z 1 Drive Z 2 When turning, whenever Z 1 Turn around, Z 2 along Z 1 When the moving distance L of the axis is 20mm, find the transmission ratio i.

[0125] Solution: 1) Find Z 1 and Z 2 The pitch circle diameter: Φ=Z·m=50×2=100mm

[0126] 2) Calculate the helical lead of the helical gear: P=Φ·π / tan36=432.403133

[0127] 3) Calculate the angle In the case of a feed of 20mm / 2π:

[0128]

[0129] 4) Calculate the transmission ratio i: i=(360+16.651128) / 360=1.046253134≈52.3 / 50=1.046=Z 1 / Z 2

example 2

[0130] Example 2: Assuming an involute spline of a helical gear: Z=16, m=2.5, Φ α =42mm, pitch Φ=16×2.5=40mm, helix angle β=35 degrees, Z 1 =Z2=50 teeth, modulus m=2. Z 2 Connected to shaft II via an involute spline. Z 2 The axial movement distance L=18mm (see Figure 8 )

[0131] Find: in Z 1 Drive Z 2 When turning, whenever Z 1 One turn, Z2 along the Z 1 When the moving distance L of the axis is 18mm, find the transmission ratio i.

[0132] Solution: 1) Find the lead of the involute spline: P=40·π / tan35=179.4663715.

[0133] 2) Calculate the angle in the case of a feed of 18mm / 2π

[0134]

[0135] 3) Calculate the transmission ratio i: i=(360+36.35063972) / 360=1.1009739999≈55 / 50=1.1=Z 1 / Z 2 .

[0136] 2.y=A+B·x

[0137] (1) Linear equations.

[0138] Calculation of the properties of the linear equations of the planetary gear mechanism in which NGW-type and NW-type meshing transmission modes are used according to the general formula used to calculate th...

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Abstract

The present invention provides stepless transmissions comprising a cam, one ore more gears, and one or more planetary gear systems responsible for power input and output, which enables stepless speed change under load and / or while stopping. The disclosure also encompasses vehicles, including but not limited to automobiles, aircrafts, helicopters, tanks, warships, submarines, tractors, and mine and construction vehicles, etc., that contain any of the stepless transmissions described herein.

Description

[0001] Cross References to Related Applications [0002] Pursuant to Title 35, United States Code, Section 119(e), this application claims the benefit of US Provisional Application No. 61 / 746,618, filed December 28, 2012, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to continuously variable (continuously variable) transmission (CVT) systems and transmissions such as various vehicles incorporating continuously variable transmission systems capable of driving at speeds of up to 95 % power transmission efficiency for infinitely variable transmission. Background technique [0004] Energy consumption, especially fuel consumption, is an ongoing worldwide problem. Crude oil is known as "black gold" due to its non-renewable and valuable properties. The global competition for oil resources, such as economic wars, political wars and local wars for territory, has never stopped. As a result, the U.S. federal governm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/66
CPCF16H61/66F16H63/067F16H37/084F16H2037/0866
Inventor 刘光全
Owner 刘光全
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