CN202402593U

CN202402593U - Deep-hole sleeve shaft input shaft structure with outer ring needle bearing support

Info

Publication number: CN202402593U
Application number: CN2011205287090U
Authority: CN
Inventors: 卢新田; 王明成; 王志明; 赵雪松; 梅相楠; 柳芬; 赵成福; 史英哲; 顾振宇
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2011-12-16
Filing date: 2011-12-16
Publication date: 2012-08-29
Anticipated expiration: 2021-12-16

Abstract

The utility model relates to a deep-hole sleeve shaft input shaft structure with an outer ring needle bearing support, which is characterized in that an input shaft assembly is composed of a front needle bearing, a even-gear input shaft, an odd-gear input shaft and a rear needle bearing. The front needle bearing is composed of an outer ring and a quill roller, the front needle bearing and the rear needle bearing are installed in an inner hole of the even-gear input shaft to support the even-gear input shaft, and the odd-gear input shaft and the even-gear input shaft rotate relatively. The deep-hole sleeve shaft input shaft structure with the outer ring needle bearing support has the advantages of being convenient to install, accurate in positioning, reliable in work, simple in structure and the like.

Description

The structure of the deep hole sleeve input shaft that band outer ring needle bearing supports

Technical field

The utility model relates to a kind of structure of the deep hole sleeve input shaft that supports with the outer ring needle bearing; The structure that particularly relates to the deep hole sleeve input shaft that band outer ring needle bearing that a kind of double-clutch automatic transmission (DCT) uses supports 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 shfit, has starting, gear shift is smooth-going, but resisting moment is changed advantage such as self adaption.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 gear shift difficulty, and power interruption during gear shift requires pilot control skilled, so people expect that it can realize automation.Computer Control Technology makes this gear realize that automaitc shfit 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 shfit problem that electric control mechanical type automatic speed variator exists; Greatly improved the gear shift travelling comfort, guaranteed that vehicle has good power character and shift 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 to realize gear switch.

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 gear-shifting actuating mechanism very easily; When vehicle operating reaches shift point; The clutch separation that only need will work simultaneously with another clutch, then makes automobile go with next gear.In gearshift procedure, the power of motor constantly is passed to wheel all the time, so the gearshift procedure of accomplishing like this is a power shfit.Vehicle implementation timing, will improve the gear shift travelling 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 is to provide a kind of structure of the deep hole sleeve input shaft that supports with the outer ring needle bearing, and it has An dress Fang Bian ﹑ and Dings position Zhun Que ﹑ Gong and make characteristics such as Ke Kao ﹑ is simple in structure.

The technological scheme of the utility model is achieved in that a kind of structure of the deep hole sleeve input shaft that supports with the outer ring needle bearing, it is characterized in that: the input shaft assembly is by preceding needle bearing, even number shelves input shaft, and odd number shelves input shaft is formed with the back needle bearing; Preceding needle bearing is made up of outer ring and needle roller, and it is installed in the even number shelves input shaft endoporus with the back needle bearing, supports even number shelves input shaft, and odd number shelves input shaft and even number shelves input shaft relatively rotate.

The utility model patent good effect is the function that preceding needle bearing not only has common needle bearing, and have easy for installation, accurate positioning, characteristics such as coaxality is good.Simultaneously, because bearing outer ring and input shaft endoporus cooperate, reduced the difficulty of processing of deep hole.

Description of drawings

Fig. 1 is the layout plan of the utility model.

Fig. 2 is the preceding needle bearing structural drawing of the utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model patent is done further description: a kind of structure of the deep hole sleeve input shaft that supports with the outer ring needle bearing; It is characterized in that: the input shaft assembly is by preceding needle bearing 1; Even number shelves input shaft 2; Odd number shelves input shaft 3 is formed with back needle bearing 4, and preceding needle bearing 1 is made up of outer ring and needle roller, and it is installed in even number shelves input shaft 2 endoporus with back needle bearing 4; Support even number shelves input shaft 2, and guarantee that odd number shelves input shaft 3 can relatively rotate with even number shelves input shaft 2.Before needle bearing 1 not only have the function of common needle bearing, and have An dress Fang Bian ﹑ and Ding characteristics such as position Zhun Que ﹑ coaxality is good.Because bearing outer ring and input shaft endoporus cooperate, reduced the difficulty of processing of deep hole.

Claims

1. the structure of a deep hole sleeve input shaft that supports with the outer ring needle bearing is characterized in that: the input shaft assembly is by preceding needle bearing, even number shelves input shaft, and odd number shelves input shaft is formed with the back needle bearing; Preceding needle bearing is made up of outer ring and needle roller, and it is installed in the even number shelves input shaft endoporus with the back needle bearing, supports even number shelves input shaft, and odd number shelves input shaft and even number shelves input shaft relatively rotate.