CN202360746U - Novel shifting fork assembly of automatic dual clutch transmission (DCT) - Google Patents
Novel shifting fork assembly of automatic dual clutch transmission (DCT) Download PDFInfo
- Publication number
- CN202360746U CN202360746U CN 201120522216 CN201120522216U CN202360746U CN 202360746 U CN202360746 U CN 202360746U CN 201120522216 CN201120522216 CN 201120522216 CN 201120522216 U CN201120522216 U CN 201120522216U CN 202360746 U CN202360746 U CN 202360746U
- Authority
- CN
- China
- Prior art keywords
- shifting fork
- dct
- novel
- fork assembly
- shifting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/32—Gear shift yokes, e.g. shift forks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/32—Gear shift yokes, e.g. shift forks
- F16H2063/321—Gear shift yokes, e.g. shift forks characterised by the interface between fork body and shift rod, e.g. fixing means, bushes, cams or pins
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The utility model relates to a novel shifting fork assembly of an automatic dual clutch transmission (DCT), which is composed of a shifting fork and linear bearings; and the novel shifting fork assembly is characterized in that a rabbet of the shifting fork is formed in a horizontal slotting form and matched with a piston of a hydraulic valve block, and the linear bearings at the two ends of the shifting fork are respectively pressed in holes at the two ends of the shifting fork. According to the utility model, a sliding friction between the shifting fork and a fork shaft is changed into a rolling friction, therefore, the friction resistance is reduced, and the novel shifting fork assembly has the characteristics of small gear shifting force, smooth gear shifting and high efficiency; and the shifting fork is made of cast steel and forged steel, therefore, the novel shifting fork assembly has the characteristics of compact structure, high strength and low cost.
Description
Technical field
The utility model relates to a kind of novel double-clutch automatic transmission shifting fork assembly, 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 provides a kind of novel double-clutch automatic transmission (DCT) shifting fork assembly; Its sliding friction with shift fork and fork shaft is transformed into rolling friction; Reduce surface friction drag; And have the advantages that berth-changing strength Xiao ﹑ is smooth-going and efficient is high, fork drawing material adopts cast steel and forged steel, has the high and low characteristics of cost of Jie structure Jin Cou ﹑ intensity.
The technological scheme of the utility model is achieved in that a kind of novel double-clutch automatic transmission (DCT) shifting fork assembly, is made up of shift fork and linear bearing; It is characterized in that: the shift fork notch adopts the transversal slotting form, cooperates with the hydraulic valve block piston, and the two ends linear bearing is fitted in the hole at shift fork two ends.
The good effect of the utility model is to have low cost, high tenacity, the characteristics of Jie structure Jian Dan ﹑ An dress Fang Bian ﹑ compact structure and reliable operation.
Description of drawings
Fig. 1 is the utility model layout plan.
Fig. 2 is the utility model structural drawing.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further description: a kind of novel double-clutch automatic transmission (DCT) shifting fork assembly; It is characterized in that: be made up of shift fork 2 and two linear bearings 1, two linear bearings 1 are fitted in the hole at shift fork 2 two ends.Linear bearing 1 adopts built-in ball and external diameter steel bushing structure.Cooperate in order to adapt to the hydraulic valve block piston, shift fork 2 notches adopt the transversal slotting form, and are as shown in Figure 2.Because adopt linear bearing 1, the sliding friction that will cooperate with fork shaft has been transformed into rolling friction, has reduced surface friction drag, has the advantages that berth-changing strength Xiao ﹑ is smooth-going and efficient is high.
Claims (1)
1. a novel double-clutch automatic transmission (DCT) shifting fork assembly is made up of shift fork and linear bearing; It is characterized in that: the shift fork notch adopts the transversal slotting form, cooperates with the hydraulic valve block piston, and the two ends linear bearing is fitted in the hole at shift fork two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120522216 CN202360746U (en) | 2011-12-14 | 2011-12-14 | Novel shifting fork assembly of automatic dual clutch transmission (DCT) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120522216 CN202360746U (en) | 2011-12-14 | 2011-12-14 | Novel shifting fork assembly of automatic dual clutch transmission (DCT) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202360746U true CN202360746U (en) | 2012-08-01 |
Family
ID=46571934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120522216 Expired - Lifetime CN202360746U (en) | 2011-12-14 | 2011-12-14 | Novel shifting fork assembly of automatic dual clutch transmission (DCT) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202360746U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315139A (en) * | 2014-09-25 | 2015-01-28 | 中国第一汽车股份有限公司 | Shifting operation mechanism applied to double clutch type automatic transmission |
| CN105443747A (en) * | 2014-07-29 | 2016-03-30 | 广州汽车集团股份有限公司 | Gear shifting executing mechanism of dual clutch transmission |
-
2011
- 2011-12-14 CN CN 201120522216 patent/CN202360746U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443747A (en) * | 2014-07-29 | 2016-03-30 | 广州汽车集团股份有限公司 | Gear shifting executing mechanism of dual clutch transmission |
| CN104315139A (en) * | 2014-09-25 | 2015-01-28 | 中国第一汽车股份有限公司 | Shifting operation mechanism applied to double clutch type automatic transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120801 |
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| CX01 | Expiry of patent term |