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Double-wet type direct gear shift mechanical speed change mechanism for high-speed vehicle

A mechanical variable speed, wet technology, applied in the field of vehicle engineering, can solve the problems of the output speed of the main shaft cannot be too high, the input speed cannot be too high, the transmission efficiency is low, etc., to achieve a good generalization and serialization basis, strong deformation ability, high The effect of power density

Active Publication Date: 2015-01-28
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The safe working speed limit of the high-power hydraulic torque converter at the input end makes the input speed not too high, and the linear speed limit of the high-power friction element on the main shaft makes the main shaft output speed not too high. At the same time, the traditional high-integration hydraulic mechanical transmission mechanism Due to the use of hydraulic torque converter and its oil supply system, its transmission efficiency is low and its volume is large

Method used

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  • Double-wet type direct gear shift mechanical speed change mechanism for high-speed vehicle
  • Double-wet type direct gear shift mechanical speed change mechanism for high-speed vehicle
  • Double-wet type direct gear shift mechanical speed change mechanism for high-speed vehicle

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Embodiment Construction

[0015] When the double wet mechanical transmission mechanism is applied to a high-speed crawler vehicle with longitudinally arranged engines, such as figure 1 As shown, the direct drive power input is transmitted from the active bevel gear 1 through the passive bevel gear 2 to the middle of the transmission I shaft 9; figure 2 As shown, the direct drive power input is directly input from the right end of the transmission I shaft 9; when the double wet mechanical transmission mechanism is applied to a high-speed crawler vehicle, as shown in figure 1 with figure 2 As shown, the double wet mechanical transmission mechanism has a left confluence large gear 15, a left confluence planetary row HL16, a right confluence large gear 27 and a right confluence planetary row HR26 connected with the steering power input mechanism; vehicle, such as image 3 As shown, the double wet mechanical transmission mechanism is figure 2 On the basis of removing the left confluence large gear 15,...

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Abstract

The invention relates to a double-wet type direct gear shift mechanical speed change mechanism for a high-speed vehicle, which belongs to the technical field of vehicle engineering. According to the mechanism, a three-degree-of-freedom fixed shaft speed change mechanism is combined with a double-wet type gear shift operating mechanism; seven wet type gear shift operating elements, namely five wet type gear shift clutches and two wet type gear shift synchronizers are utilized; each wet type gear shift operating element is correspondingly connected with a set of speed change gear pair, so that the speed change mechanism can be provided with nine forward gears and one reverse gear; the requirement of longitudinally or horizontally arranging a power device of the vehicle can be met by adjusting an input structure of the speed change mechanism; and different driving requirements on crawler type vehicles or multi-driving-wheel type vehicles can be met by adjusting an output structure of the speed change mechanism. Due to the adoption of double-wet type gear shift operating elements, the gears can be directly shifted, so that a stable and quick gear shifting process of the speed change mechanism is ensured. The mechanism has the characteristics of wide transmission range, high transmission efficiency, high power density, high reliability, simple structure and the like.

Description

technical field [0001] The invention relates to a mechanical transmission mechanism applied to high-speed vehicles, in particular to a double-wet direct-shift mechanical transmission mechanism for high-speed vehicles, which belongs to the technical field of vehicle engineering. Background technique [0002] The transmission system is located between the power unit and the drive wheels, and it plays an irreplaceable role in realizing various maneuvering functions of the vehicle through control. The speed change mechanism is the core part of the transmission system, and the development of a speed change mechanism with high transmission efficiency, high power density and high reliability has always been the pursuit goal in the field of vehicle engineering technology. In the future, high-mobility vehicles urgently need advanced transmission mechanisms with high speed, wide transmission range, high transmission efficiency, and high power density. In the past 10 years, there have...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/02F16H3/44F16H57/02
Inventor 马彪李和言
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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