CN202451762U

CN202451762U - Novel nylon protecting jacket for spline of input shaft of double clutch automatic transmission

Info

Publication number: CN202451762U
Application number: CN2011205399594U
Authority: CN
Inventors: 柳芬; 王明成; 史英哲; 卢新田; 王志明; 赵成福; 梅相楠; 顾振宇; 赵雪松
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2011-12-21
Filing date: 2011-12-21
Publication date: 2012-09-26
Anticipated expiration: 2021-12-21

Abstract

The utility model relates to a novel nylon protecting jacket for a spline of an input shaft of a double clutch automatic transmission. The protecting jacket comprises an even shift input shaft, a needle bearing, an input shaft protecting jacket and an odd shift input shaft. The protecting jacket is characterized in that one end of the input shaft protecting jacket is provided with a groove; the input shaft protecting jacket is arranged between the end part of a three shift gear spline of the odd shift input shaft and the end part of a spline of the even shift input shaft; the needling bearing is positioned between the two shafts; and the input shaft protecting jacket is sleeved on the needle bearing through the groove. The protecting jacket can protect the even shift input shaft and the odd shift input shaft, and is simple in structure, convenient to install and low in cost.

Description

A kind of novel double-clutch automatic transmission input shaft spline nylon protecting jacket

Technical field

The utility model relates to a kind of novel double-clutch automatic transmission input shaft spline nylon protecting jacket, belongs to the automatic gearbox technical field of auto manufacturing.

Background technique

Along with the fast development of automobile pollution and the rapid increase of amateur driver's quantity, automatic gearbox is just presenting fast development trend.Present automatic gearbox mainly contains hydraulic mechanical type automatic transmission (AT), stepless speed variator (CVT) and double-clutch automatic transmission (DCT).

Realizing on automobile that the self-shifting speed changer is the hydraulic mechanical type automatic transmission, be called for short AT, also is present most widely used automatic gearbox.It does not cut off power gear shifting, has starting, smooth gear shifting, but to advantages such as resisting moment variation self adaptions.But shortcomings such as it also has complex structure simultaneously, and difficulty is made, and transmission efficiency is low.

Manually fixedly the shaft type gear-shift transmission is the step change driving mechanism, and its advantage is that efficient is high, and cost is low, and mature production technology is widely used in China at present.Shortcoming is a gearshift difficulty, and power interruption during gearshift requires pilot control skilled, so people expect that it can realize automation.Computer Control Technology makes this gear realize that self shifter becomes possibility.Double-clutch automatic transmission (DCT) is the automatic mechanical transmission of a new generation; It has inherited high, the many advantages such as installing space is compact, in light weight, low price of manual transmission transmission efficiency; Fundamentally solved the cut-out power gear shifting problem that electric control mechanical type automatic speed variator exists; Greatly improved shifting comfort, guaranteed that vehicle has good power character and gear shifting characteristic.

In double-clutch automatic transmission, each gear driving gear of speed changer by strange, even number gear respectively with input shaft on two clutch C1, C2 being provided be connected, clutch C1, C2 replace transferring power and switch to realize gear.

During DCT work, with certain gear operation, electrical control unit of automatic transmission (TCU) is judged next gear that is about to the work of getting into according to the signal of related sensor to vehicle earlier; Because of this gear clutch separation transferring power not also,, mesh this gear in advance so instruction hydraulic control solenoid valve is controlled gearshift actuator very easily; When vehicle operating reaches shifting points; The clutch separation that only need will work simultaneously with another clutch, then makes automobile go with next gear.In shift process, the power of motor constantly is passed to wheel all the time, so the shift process of accomplishing like this is a power gear shifting.Vehicle implementation the power gear shifting process, will improve shifting comfort greatly, simultaneously guarantee that also vehicle has good and economic, aspects such as vehicle oil consumption and discharging are made moderate progress.

Summary of the invention

The purpose of the utility model provides a kind of novel double-clutch automatic transmission input shaft spline nylon protecting jacket, and it can protect even number retaining input shaft and odd number retaining input shaft, and Jie structure Jian Dan ﹑ An dress Fang Bian ﹑ is with low cost.

The technological scheme of the utility model is achieved in that a kind of novel double-clutch automatic transmission input shaft spline nylon protecting jacket; Form by even number retaining input shaft, needle bearing, input shaft protecting jacket, odd number retaining input shaft; It is characterized in that: input shaft protecting jacket one end fluting; Be installed between odd number retaining input shaft three retaining gear spline ends and the even number retaining input shaft splined end, needle bearing is between two axles, and the input shaft protecting jacket is enclosed within on the needle bearing through fluting.

The utility model good effect is to protect even number retaining input shaft and odd number retaining input shaft, and Jie structure Jian Dan ﹑ An dress Fang Bian ﹑ is with low cost.

Description of drawings

Fig. 1 is the structural drawing of the utility model.

Fig. 2 is the input shaft protecting jacket structural drawing of the utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model is made further description: a kind of novel double-clutch automatic transmission input shaft spline protecting jacket; Form by even number retaining input shaft 1, needle bearing 2, input shaft protecting jacket 3, odd number retaining input shaft 4; It is characterized in that: input shaft protecting jacket 3 one ends fluting 5; Be installed between odd number retaining input shaft 4 three retaining gear spline ends and even number retaining input shaft 1 splined end; Needle bearing 2 is between two axles, and input shaft protecting jacket 35 is enclosed within on the needle bearing 2 through slotting.Input shaft protecting jacket 3 can prevent the needle bearing 2 and odd number retaining input shaft 4 damaged in collision in the even number retaining input shaft 1.

Claims

1. novel double-clutch automatic transmission input shaft spline nylon protecting jacket; Form by even number retaining input shaft, needle bearing, input shaft protecting jacket, odd number retaining input shaft; It is characterized in that: input shaft protecting jacket one end fluting; Be installed between odd number retaining input shaft three retaining gear spline ends and the even number retaining input shaft splined end, needle bearing is between two axles, and the input shaft protecting jacket is enclosed within on the needle bearing through fluting.