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Speed changer

A transmission and synchronizer technology, which is applied to transmission parts, belts/chains/gears, mechanical equipment, etc., can solve the problems of small speed ratio range, failure to meet environmental protection, poor power performance, etc., and achieve large speed ratio range and growth The effect of long life and light gear shifting

Inactive Publication Date: 2012-12-19
SHAANXI FAST GEAR CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to technical limitations, the traditional gearbox has fewer gears, which results in a small gear ratio range and a large step difference. The vehicle has poor power and high fuel consumption, which is not energy-saving and environmentally friendly.

Method used

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Examples

Experimental program
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Embodiment Construction

[0027] see figure 1 , 20JS240T transmission is a 2x5x2 structure composed of front auxiliary box, rear auxiliary box and main box. The one-axis gear 21 is vacantly sleeved on the one-axis 17, and the axial positioning is carried out by the first spline washer 19, the second spline washer 20 and the stop ring 15, the structure is simple, the assembly is convenient, and the adjustment pad is omitted The trouble of adjusting; the one-axis differential gear 18 is also vacantly sleeved on the one-axis 17; a single-taper, one-way lock ring type inertia synchronizer 1 is housed between the one-axis gear 21 and the one-axis differential gear 18, the The synchronizer is operated by air, and the gear is shifted through the shift fork 4 by the cylinder 3 on the main box body. The gears on the intermediate shaft 22 are all matched with the intermediate shaft 22 with a certain amount of interference except that the first gear 31, the second gear 30 and the reverse gear 32 are integrated w...

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Abstract

The invention relates to a 20-gear 20JS240T speed changer which comprises a front secondary box, a main box and a rear secondary box which are sequentially connected, wherein a shaft I and a shaft II which are sequentially connected are arranged in the front secondary box and the main box; a secondary box main shaft connected with the shaft II is arranged in the rear secondary box; a shaft gear I and a shaft differential gear I which are idly sleeved on the shaft I are sequentially arranged on the shaft I; a shaft gear II idly sleeved on the shaft II is arranged on the shaft II; a secondary box driving gear and a secondary box main shaft reduction gear which are idly sleeved on the secondary box main shaft are sequentially arranged on the secondary box main shaft; the secondary box driving gear is connected with the shaft II; and the gears mentioned above are in an radial floating state on the corresponding shafts. The speed changer provided by the invention is a heavy truck speed changer which can be simply and conveniently operated, is convenient to engage gear, saves oil, achieves environmental protection, has low noise, is comfortable for driving, improves the efficiency, and reduces the oil consumption.

Description

technical field [0001] The invention relates to the field of transmissions, in particular to a 20-gear 20JS240T heavy-duty transmission. Background technique [0002] In recent years, with the continuous rise of international oil prices, coupled with the country's strict restrictions on vehicle emission standards, major domestic and foreign OEMs have also increased the acceptance standards for major parts of vehicles, and energy-saving and environmentally friendly products are very popular. Due to technical limitations, the traditional gearbox has fewer gears, which results in a small gear ratio range and a large step difference. The vehicle has poor power and high fuel consumption, which is not energy-saving and environmentally friendly. . Contents of the invention [0003] In order to solve the technical problems existing in the background technology, the present invention proposes a 20JS240T transmission, which has up to 20 forward gears, and is easy to operate and eas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H37/04F16H57/021F16H57/023
Inventor 孙智金
Owner SHAANXI FAST GEAR CO
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