CN101379323A - Selector fork for a change-speed gearbox - Google Patents
Selector fork for a change-speed gearbox Download PDFInfo
- Publication number
- CN101379323A CN101379323A CNA200780004414XA CN200780004414A CN101379323A CN 101379323 A CN101379323 A CN 101379323A CN A200780004414X A CNA200780004414X A CN A200780004414XA CN 200780004414 A CN200780004414 A CN 200780004414A CN 101379323 A CN101379323 A CN 101379323A
- Authority
- CN
- China
- Prior art keywords
- parts
- shifting fork
- fork
- sheet metal
- driving component
- 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.)
- Pending
Links
- 229910052751 metal Inorganic materials 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 19
- 239000011159 matrix material Substances 0.000 claims description 17
- 238000005242 forging Methods 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 5
- 239000003779 heat-resistant material Substances 0.000 claims description 3
- 230000002045 lasting effect Effects 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 208000034189 Sclerosis Diseases 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 1
- 230000003993 interaction Effects 0.000 abstract 1
- 238000009721 upset forging Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000007634 remodeling Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- F16H2063/327—Gear shift yokes, e.g. shift forks essentially made of sheet metal
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention relates to a selector fork (1) for a change-speed gearbox having a basic body (2) of fork-shaped configuration, a bearing element (3) and a driver element (4) which is suitable for interaction with an actuating element, wherein at least two of the three parts basic body (2), bearing element (3) and driver element (4) comprise separately manufactured parts which are connected permanently to one another. In order for it also to be possible for parts which cannot be welded or can be welded only with difficulty to be connected reliably to one another, there is provision according to the invention for the permanent connection between at least two of the separately manufactured parts (2, 3, 4) to be produced by a riveted connection or by an upset-forging operation (5).
Description
Technical field
The present invention relates to a kind of shifting fork that is used for speed-changing gear box, it has fork-shaped matrix, supporting member and is suitable for and the coefficient driving component of operating device, wherein, at least two in these three parts of matrix, supporting member and driving component are formed by the part of making separately, be connected lastingly each other.
Background technique
Be used for the required shifting fork of gear shift and make as the foundry goods of aluminium matter or steel usually in speed-changing gear box, this point for example has disclosed in EP 0 479 346 B1.
Also can make shifting fork with sheet metal, wherein whole fork spare usefulness independently metal sheet is made by punching press and remodeling.This scheme for example has disclosed in DE 199 19 270 A1 and DE 199 19271 A1.
Also used the shifting fork of opening civilian described type in other cases, this for example has disclosed in DE 10,309 407 A1.Be the fork body, supporting member (typical case constitutes as external member) of fork-shaped and driving component and here make, their are engaged to make shifting fork by welding as member independently.
Similarly scheme has disclosed in DE 101 25 098 A1.Wherein, all stand-alone assemblies of shifting fork are all by sheet metal forming.After the manufacturing of individual part is finished, these individual part are connected to each other, wherein also have been to use welding.
The shortcoming of speed change lever disclosed, that be assembled into by the part of making separately is that the individual part of connect independently in some cases, making separately is debatable.This is attributed to the material of making individual part.It is difficult for example wanting to weld under carbon part is too high in steel the situation, irrealizable in other words conj.or perhaps.And the steel that tends to corresponding high-carbon part on the other hand is to make shifting fork, because material can harden and descend correspondingly more wear-resistant in working order.
Summary of the invention
Therefore, the objective of the invention is to, the shifting fork of splitting civilian described type improves, even make that shifting fork also can be made of a plurality of parts of making separately when the material that use is difficult to weld or can't weld at all.
Purpose of the present invention is solved by following characteristics,, sets up lasting connection between at least two parts of making separately of shifting fork by riveted joint or by the forging and pressing operation that is.Especially the matrix of shifting fork is connected by riveted joint or by the forging and pressing operation each other enduringly with driving component.
The weldability problem that utilization can be ignored the shifting fork assembly material according to the solution of the present invention is guaranteed lasting and firm connection.
Wherein preferably consider with at least two parts in sheet metal manufacturing matrix, supporting member and these three parts of driving component of constant thickness.Wherein, at least two sizes of plate thickness in these parts of the part that makes with sheet metal can be different.Do the special coupling that can realize like this, thereby can obtain as far as possible little shifting fork weight with required component strength.
For two parts being connected this situation by the forging and pressing operation, preferably allow material from than thick sheet metal by groove, especially be squeezed into the thin sheet metal by the hole.Forging and pressing also can be described to well-known " TOX connection ".
Especially be fit to adopt same oblique riveting known in the prior art for two parts being connected this situation by riveted joint.At this point can be for example with reference to DE 33 15 758 A1.
Preferably allow in the part of making separately at least two make by high strength or heat-resistant material.They also can be made by the material of sclerosis.They can also be made by nonweldable material in addition.
If fork-shaped matrix and/or driving component make by punching press and riveted joint process, can highlight the advantage of manufacturing technology aspect.
Utilization can create the combination shifting fork of being made up of a plurality of parts of making separately according to suggestion of the present invention.Wherein can use arbitrarily raw material and needn't worry whether welding they are.
For the manufacturing raw-material respective design that individual part adopted, the thickness of especially used sheet metal have been realized the optimum Match of material and required component strength., need not improve shifting fork the gross weight of fork part thereby can enough firmly constituting in the key area under very light weight.
The fork part has overall less weight when can also have maximum strength or component strength in must the zone of firm especially formation.This point can realize by choosing plate thickness for each member.
This method of passing through to be advised that the part of single formation is independently engaged can worry that member can bend.Can utilize the known fashionable error of method butt joint to compensate in addition.Owing to needn't worry that member can bend, so there is no need the fork part is reprocessed accordingly, this makes the Economy of making shifting fork be improved.
Can use high strength or heat-resistant material as raw material, this brings benefit can for the wear resistance of shifting fork.
Shifting fork preferably is used in the automotive transmission.
Description of drawings
One embodiment of the present of invention have been shown in the accompanying drawing, wherein:
Fig. 1 illustrates the shifting fork of speed-changing gear box with perspective view;
Fig. 2 is the shifting fork of observing from other direction shown in Figure 1;
Fig. 3 is the front view of shifting fork shown in Fig. 1 or 2;
Fig. 4 is the side view of shifting fork shown in Fig. 1 or 2;
Fig. 5 is the front view that is in reverse to shifting fork shown in Fig. 1 or 2 that the direction of observation of Fig. 3 observes;
Fig. 6 amplifies the section A-B that illustrates among Fig. 3.
Embodiment
A shifting fork 1 that is used for speed-changing gear box has been shown among Fig. 1.Shifting fork 1 is made up of three parts that connect together after independently making.This wherein at first is a fork-shaped matrix 2, is a supporting member 3 then, is a driving component 4 at last, driving component 4 and unshowned operating device acting in conjunction, and operating device is shifted shifting fork translation ground on same unshowned onto.Wherein fork-shaped matrix 2 is clamped the gear in the speed-changing gear box and it is passed vertically.
Supporting member 3 forms (especially seeing Fig. 2) current by two external members, and they are aligned with each other and allow unshowned supporting axle to pass.
All three described parts 2,3,4 are all made by sheet metal, that is to say that they make by remodeling with sheet metal.The thickness d of sheet metal
1, d
2(see figure 6) is chosen like this, makes to demonstrate best rigidity for special component stress.Also can choose different thickness d in principle
1, d
2, so that speed change lever is enough firm on the one hand, it can constitute as far as possible gently on the other hand.
When these independently part be difficult to or when can't weld fully, in order with them accurately and couple together securely lastingly to take following scheme, that is, part is connected by riveting step or by the forging and pressing operation.
Illustrated among Fig. 6 in the situation that forging and pressing connect and how to have carried out, that is, how to have produced forging and pressing and connect 5.This Placement also can be described to riveted joint or " TOX connection ".
Under present case, two sheet metals 2 of this of matrix or driving component and 4 are connected to each other.Just as seen, the plate thickness d of driving component 4
1Be significantly less than the plate thickness d of matrix 2
2
In driving component 4, be provided with two holes 7.After these two sheet metals 2,4 overlap each other, utilize unshowned forging and pressing instrument to be pressed among the material of sheet metal 2, thereby indent 8 occurs from the side that deviates from sheet metal 4.So, the material 6 of sheet metal 2 just is pressed and passes hole 7 in the sheet metal 4.Be provided with unshowned screwing tool thus on the side that deviates from indent 8 of sheet metal 4, screwing tool is with head 9 moulding.Head 9 is used for the mould assembly between these two sheet metals 2 and 4.
Material extruding without detriment to component surface only takes place in forging and pressing.Sealing by on link position, carrying out material can so that material especially steel obtain reinforcing.The notch effect that machinery can not occur.Favourable dynamic performance under particularly having showed in working order is even it is firm to that is to say that this connection also can continue under dynamic component stress situation.
The scheme of shifting fork is to design taking into account under the situation of load.Specifically just plate thickness is chosen as follows, that is, only must be presented bigger plate thickness in the zone of corresponding firm formation at those.In high torsion zone (or flexural stress zone), especially the link position place between matrix 2 and driving component 4 uses thicker sheet metal; In the lower zone of requirement of strength, can carry out work with the plate thickness that reduces greatly.
Nonweldable high-strength material or hard material can be connected to each other without a doubt.
Another engages possibility, and weldering must be arranged on the part to be connected, then part to be connected for example is connected to each other in the mode of spot welding.This is not only applicable to matrix 2 is connected, also is applicable to being connected between supporting member 3 and the matrix 2 with driving component 4.
The sheet metal that independent component adopted characteristic is as required chosen.Use steel disc under the situation mostly.Also can use the light metal plate.
Reference numeral
1 selector fork
2 fork-shaped matrixes
3 supporting members
4 driving members
5 forging and pressing connect
6 materials that are squeezed
7 holes
8 indents
9 heads
d
1Plate thickness
d
2Plate thickness
Claims (10)
1. the shifting fork (1) that is used for speed-changing gear box, have fork-shaped matrix (2), supporting member (3) and be suitable for and the coefficient driving component of operating device (4), wherein, in these three parts of matrix (2), supporting member (3) and driving component (4) at least two are formed by the part of making separately, be connected lastingly each other, it is characterized in that, lasting connection between at least two parts in the described part of making separately (2,3,4) is set up by riveted joint or by forging and pressing operations (5).
2. by the described shifting fork of claim 1, it is characterized in that matrix (2) is connected by riveted joint or by forging and pressing operations (5) each other lastingly with driving component (4).
3. by the described shifting fork of claim 1, it is characterized in that at least two parts in these three parts of matrix (2), supporting member (3) and driving component (4) are by constant thickness (d
1, d
2) sheet metal make.
4. by the described shifting fork of claim 3, it is characterized in that the plate thickness (d of the part (2,3,4) that makes by sheet metal
1, d
2) vary in size at least two parts in these parts (2,3,4).
5. by the described shifting fork of claim 4, it is characterized in that connecting by forging and pressing operations (5) in the situation of two parts, material (6) is from being squeezed into the thin sheet metal by groove (7) than thick sheet metal, its further groove is the hole particularly.
6. by the described shifting fork of claim 1, it is characterized in that,, set up this connection by oblique riveting connecting in the situation of two parts (2,3,4) by riveted joint.
7. by the described shifting fork of claim 1, it is characterized in that at least two parts in the part of making separately (2,3,4) are formed by high strength or heat-resistant material.
8. by the described shifting fork of claim 1, it is characterized in that at least two parts in the part of making separately (2,3,4) are formed by the material of sclerosis.
9. by the described shifting fork of claim 1, it is characterized in that at least two parts in the part of making separately (2,3,4) are formed by nonweldable material.
10. by the described operation equipment of claim 1, it is characterized in that fork-shaped matrix (2) and/or driving component (4) are made by punching press and bending process.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006004933.0 | 2006-02-03 | ||
| DE200610004933 DE102006004933A1 (en) | 2006-02-03 | 2006-02-03 | Shift fork for a change-speed gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101379323A true CN101379323A (en) | 2009-03-04 |
Family
ID=37983659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200780004414XA Pending CN101379323A (en) | 2006-02-03 | 2007-01-30 | Selector fork for a change-speed gearbox |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1984658A1 (en) |
| CN (1) | CN101379323A (en) |
| DE (1) | DE102006004933A1 (en) |
| WO (1) | WO2007090763A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295735A (en) * | 2013-07-16 | 2015-01-21 | 上海通用汽车有限公司 | Bridge-type gear shifting fork and manufacturing method thereof |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007062354B4 (en) * | 2007-12-22 | 2021-12-30 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Shift fork of a transmission and a method for producing such a shift fork |
| DE102009042943A1 (en) | 2009-09-24 | 2011-03-31 | Schaeffler Technologies Gmbh & Co. Kg | Transmission arrangement for control shaft of change-speed gearbox of vehicle, has transmission element connected with sleeve body at connecting area by upsetting-press process or tox process and comprising floor areas |
| DE102009042944A1 (en) * | 2009-09-24 | 2011-03-31 | Schaeffler Technologies Gmbh & Co. Kg | Switching element for a motor vehicle transmission |
| DE102009056299A1 (en) * | 2009-11-30 | 2011-06-09 | Schaeffler Technologies Gmbh & Co. Kg | Switching element for a manual transmission |
| DE102011079170A1 (en) | 2011-07-14 | 2013-01-17 | Schaeffler Technologies AG & Co. KG | Shift fork for motor car change speed gearbox, has switching arm provided with switching mouth, which actuates fork body to be directly connected to outer jacket of guide pipe without thermal joining process |
| DE102011080495B4 (en) | 2011-08-05 | 2018-04-05 | Schaeffler Technologies AG & Co. KG | Switching arrangement with a shift fork |
| WO2018019337A1 (en) | 2016-07-28 | 2018-02-01 | Schaeffler Technologies AG & Co. KG | Actuating device for a movable part of a variable speed gear transmission |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3315758A1 (en) * | 1983-04-30 | 1984-10-31 | Bayerische Motoren Werke AG, 8000 München | Apparatus for tumbling riveting |
| DE10125098B4 (en) * | 2001-05-23 | 2016-03-17 | Schaeffler Technologies AG & Co. KG | Gearshift fork for a change gearbox with a bifurcated formed body made of sheet metal |
| DE10329447A1 (en) * | 2003-07-01 | 2005-02-10 | Daimlerchrysler Ag | Joining process for connecting two overlapping parts involves stamping opening in one part and forming projection in other part to form engaging rear-cut section |
| DE10360719A1 (en) * | 2003-12-24 | 2005-07-21 | Ina-Schaeffler Kg | shift fork |
-
2006
- 2006-02-03 DE DE200610004933 patent/DE102006004933A1/en not_active Withdrawn
-
2007
- 2007-01-30 WO PCT/EP2007/050889 patent/WO2007090763A1/en active Application Filing
- 2007-01-30 EP EP07704241A patent/EP1984658A1/en not_active Withdrawn
- 2007-01-30 CN CNA200780004414XA patent/CN101379323A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295735A (en) * | 2013-07-16 | 2015-01-21 | 上海通用汽车有限公司 | Bridge-type gear shifting fork and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1984658A1 (en) | 2008-10-29 |
| WO2007090763A1 (en) | 2007-08-16 |
| DE102006004933A1 (en) | 2007-08-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: SCHAEFFLER KG Free format text: FORMER OWNER: FAG KUGELFISCHER AG + CO. OHG Effective date: 20100910 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20100910 Address after: German Herzogenaurach Applicant after: Schaeffler Technologies GmbH & Co. KG Address before: German Herzogenaurach Applicant before: Fag Kugelfischer AG & Co. OHG |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090304 |