Two-speed pure electric transmission

A transmission and pure electric technology, which is applied in the direction of vehicle gearboxes, instruments, transmission boxes, etc., can solve the problems of poor shift smoothness, insufficient stability, and heavy product weight, and achieve reduced oil churning loss, light weight, and casing good body strength

Pending Publication Date: 2019-01-08
XIAN FASHITE AUTOMOBILE TRANSMISSION CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there are common problems such as heavy product weight, insufficient stability, poor shifting smoothness, and large noise.

Method used

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  • Two-speed pure electric transmission
  • Two-speed pure electric transmission
  • Two-speed pure electric transmission

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Embodiment Construction

[0034] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circums...

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Abstract

The invention discloses a two-speed pure electric transmission. The transmission comprises a front shell, a front bearing cover connected with the front shell, an input shaft assembly, an output shaftassembly, a transmission shell and a rear bearing cover connected with the transmission shell. The input shaft assembly is supported on the front shell. The two ends of the output shaft assembly aresupported on an inner ring of the input shaft assembly and the transmission shell correspondingly. An output shaft first-speed gear is arranged on the output shaft assembly. A sliding sleeve is arranged between the output shaft first-speed gear and the input shaft assembly. A shifting fork is arranged above the sliding sleeve and sleeves a shift rail in an idling mode. A transmission control device is arranged above the shifting fork. Three counter shafts are uniformly distributed on the periphery of the output shaft assembly. The two ends of each counter shaft are supported on the front shelland the transmission shell correspondingly. According to the two-speed pure electric transmission, the technical route of the three counter shafts is adopted, the center-to-center distance is reduced, and the transmission is small in size, light in weight and compact in structure; and meanwhile, the three counter shafts adopt the symmetric distribution structure of two up and one down, lubrication is guaranteed, the churning loss can be further reduced as much as possible, and the transmission efficiency is improved.

Description

technical field [0001] The invention belongs to the field of transmissions, and relates to a two-speed pure electric transmission. Background technique [0002] With the advancement of society and the rapid development of the automobile industry, automobiles have become a very important means of transportation for people. With the tightness of petroleum energy and stricter emission reduction regulations, many countries, including China, have introduced relevant policies to encourage the development of new energy vehicles. This development trend is also an inevitable trend for the automotive industry to develop towards automation and intelligence. At present, the technical route of pure electric buses is gradually changing from pure electric direct drive to motor plus EMT. [0003] There are also two-speed pure electric transmissions on the market, but the generally adopted technical route is a single countershaft or double countershaft scheme, and the shift sliding sleeve a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/32F16H57/023F16H57/02F16H63/32F16H63/34
CPCF16H3/32F16H57/02F16H57/023F16H63/32F16H63/3416F16H2057/02043F16H2063/322F16H2200/003F16H2200/0082
Inventor 白玉田严鉴铂刘义孙智金殷崇一
Owner XIAN FASHITE AUTOMOBILE TRANSMISSION CO LTD
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