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Gearbox with 2+1 gears for electric automobile

A technology for electric vehicles and gearboxes, applied in vehicle gearboxes, transmission components, transmission devices, etc., can solve problems such as inconvenient assembly and maintenance, and achieve the goal of improving overall dynamic performance, reducing tooth surface meshing noise, and improving fatigue life. Effect

Active Publication Date: 2011-05-25
锦州万得汉拿电机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This speed change mechanism requires the matching drive motor to have a large output power, and it is not easy to assemble and maintain

Method used

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  • Gearbox with 2+1 gears for electric automobile
  • Gearbox with 2+1 gears for electric automobile
  • Gearbox with 2+1 gears for electric automobile

Examples

Experimental program
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Embodiment Construction

[0015] The following is a detailed description in conjunction with the drawings: As shown in the figure, the transmission front case A and the transmission rear case B are connected by bolts to form the case body, the drive shaft mechanism D is installed through the bearing, and the high-speed drive shaft is installed on the drive shaft of the drive shaft mechanism D. Gear D1, reverse driving gear D2, low-speed driving gear D3; install the reverse idler mechanism C through the installation holes of the transmission front case A and the transmission rear case B, and the reverse idler mechanism C is composed of: install on the idler shaft C2 Idler C1, return spring C3; the intermediate shaft mechanism E is installed through the bearing, and the intermediate shaft mechanism E is composed of: the main deceleration driving gear shaft E1 is installed with the low-speed driven gear E2, the synchronizer E3, the reverse gear driven gear E6, and the high-speed driven gear Gear E4, drivin...

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Abstract

The invention relates to a gearbox with 2+1 gears for an electric automobile. An exhaust valve, a bolt of an oil injection opening, an automobile speed mileage output sensor, a high-speed gear signal switch, a low-speed gear signal switch and a reverse gear switch are installed on a back box body of a speed changer; a box body of the speed changer is provided with a driving mechanism, a reverse gear idler mechanism, an intermediate shaft mechanism, a differential assembly and a gear shifting mechanism; the gearbox with the 2+1 gears for the electric automobile has the advantages that two forward gear speed changers are adopted, and the rated power of an adopted motor can be lowered; meanwhile, a transmission gear of a high-speed input shaft can work by a tooth face at a single side through adding a reverse gear, the fatigue life of teeth is enhanced, and the engagement noise of the tooth face is lowered; the difference value of the transmission speed ratio of two gears is large, the adopted power of a drive motor is effectively lowered, and the integral dynamic performance of a power assembly is enhanced; and the gearbox with the 2+1 gears for the electric automobile can be widelyapplied to an electric car, a wagon and a passenger car to serve as a variable-speed transmission mechanism.

Description

technical field [0001] The invention relates to a 2+1 gear transmission for an electric vehicle. Background technique [0002] Due to the rising oil prices, electric vehicles have been greatly developed as a green energy product. At present, general electric gas vehicles and battery vehicles use direct drive or constant transmission ratio for power output. This speed change mechanism requires a matching drive motor to have a relatively large output power, and is also inconvenient for assembly and maintenance. Contents of the invention [0003] The purpose of the present invention is to solve the above existing problems and provide a 2+1 gear transmission for electric vehicles that improves the overall power performance of the powertrain. [0004] The present invention is achieved like this: the front box body of the speed changer and the rear box body of the speed changer are connected by bolts to form the box body, the drive mechanism is installed through the bearing, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/44F16H57/08
CPCF16H2200/0021F16H3/089
Inventor 孙玲张志华
Owner 锦州万得汉拿电机有限公司
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