CN112424505A - Positioning convex component, machining method of positioning convex component and hydraulic torque converter - Google Patents
Positioning convex component, machining method of positioning convex component and hydraulic torque converter Download PDFInfo
- Publication number
- CN112424505A CN112424505A CN201880095713.7A CN201880095713A CN112424505A CN 112424505 A CN112424505 A CN 112424505A CN 201880095713 A CN201880095713 A CN 201880095713A CN 112424505 A CN112424505 A CN 112424505A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- positioning
- assembly
- bushing
- torque converter
- 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
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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
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
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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
- F16H41/00—Rotary fluid gearing of the hydrokinetic type
- F16H41/24—Details
-
- 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
- F16H41/00—Rotary fluid gearing of the hydrokinetic type
- F16H41/24—Details
- F16H41/28—Details with respect to manufacture, e.g. blade attachment
-
- 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
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0205—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type two chamber system, i.e. without a separated, closed chamber specially adapted for actuating a lock-up clutch
Abstract
A positioning convex component, a machining method of the positioning convex component and a hydraulic torque converter are provided. The protruding subassembly in location is used for torque converter, the protruding subassembly in location includes end cover (111) and sleeve pipe (2), the end cover has bushing installation department (1111), the sleeve pipe can be installed bushing installation department's periphery. The sleeve mounting part comprises a positioning protrusion with a first specification; in an attached state of the grommet to the grommet attaching portion, the grommet constitutes a positioning projection of a second specification. The positioning convex component is low in manufacturing cost, suitable for hydraulic torque converters of various models and capable of being produced in a modularized mode.
Description
Technical Field
The invention relates to the field of transmission, in particular to a positioning lug in the field of transmission, and more particularly relates to a positioning lug of a hydraulic torque converter.
Background
FIG. 1 illustrates a partial cross-sectional view of a known torque converter coupled to an engine. One end of an end cover 101 of the torque converter is welded with a positioning boss portion 102 through a welding material 103. The locating boss 102 can help center the connection on the end cover 101 when connected to, for example, an engine crankshaft.
The step of installing the locating boss 102 by welding generally comprises: forging the positioning convex blank, machining the positioning convex blank to a proper size to obtain a positioning convex end part 102, welding the positioning convex end part 102 to the end cover 101, and finishing the positioning convex end part 102 to correct deformation in the welding process. The welding mode provides conditions for the modular fabrication of the locating boss, i.e., the same size end cap 101 can weld different sizes of locating boss portion 102 to match different installation environments. However, the method of forging the locating boss blank and machining the locating boss portion 102 multiple times to the proper size is still not economical.
Another way to make the positioning protrusion is to stamp the positioning protrusion integrally with the end cap. The stamping process is very economical and effective for manufacturing the positioning protrusions with single models; however, since one set of stamping die is usually only suitable for stamping one size of positioning protrusion, it is not possible to realize modular production of multiple models.
The US patent 7997072B2 discloses a technical scheme that an end cover of a hydraulic torque converter is punched and pressed firstly, and then a positioning convex end part is welded on the end cover. US7841174B2 discloses a solution in which a positioning lug is press-fitted to an end cover of a torque converter having a coupling projection. The two schemes are considered in the production process of the positioning protrusions with various types and modularization; however, in these solutions, the end cover of the torque converter is used as an intermediate member for mounting the positioning boss portion, that is, for many types of positioning bosses, it is still necessary to prepare the same number of different types of positioning boss portions. For example, N different types of positioning bosses, it is necessary to prepare N different types of positioning boss end portions, and there is still room for improvement in actual production.
Disclosure of Invention
The present invention overcomes or at least alleviates the above-mentioned deficiencies of the prior art by providing a low cost, modular locating male assembly for use in a wide variety of torque converters.
According to a first aspect of the present invention, there is provided a positioning boss assembly for a torque converter, the positioning boss assembly including an end cover having a sleeve mounting portion and a sleeve mountable to an outer periphery of the sleeve mounting portion; wherein the content of the first and second substances,
the sleeve mounting part comprises a positioning protrusion with a first specification;
in an attached state of the grommet to the grommet attaching portion, the grommet constitutes a positioning projection of a second specification.
In at least one embodiment, the inner diameter of the cannula is smaller than the outer diameter of the cannula mount.
In at least one embodiment, the ferrule is mounted to the ferrule mounting portion by being axially pressurized.
In at least one embodiment, the axial length of the sleeve is greater than its wall thickness in the radial direction.
In at least one embodiment, the end cap is an integrally formed component.
In at least one embodiment, the end cap is a metal stamping.
In at least one embodiment, the sleeve is one of a plurality of sleeve alternatives, the sleeve alternatives differing in outer diameter.
According to a second aspect of the present invention, there is provided a machining method of a positioning male component, the positioning male component being the positioning male component according to the present invention, the machining method including:
providing an end cap of the locating male component obtained by stamping a metal blank;
providing a sleeve, wherein the inner diameter of the sleeve is smaller than the outer diameter of the sleeve mounting part, and the outer diameter of the sleeve is larger than the outer diameter of the sleeve mounting part; and
applying pressure axially causes the ferrule to be mounted to the ferrule mounting portion in an interference fit.
In at least one embodiment, the sleeve is finish machined such that the sleeve constitutes a locating boss of a particular gauge.
According to a third aspect of the present invention, there is provided a torque converter including the positioning boss assembly according to the present invention.
Drawings
FIG. 1 illustrates a cross-sectional view of a known torque converter coupled to an engine.
Fig. 2 shows a cross-sectional view of a half structure of a torque converter having a positioning male assembly according to the present invention.
Description of the reference numerals
101. 111 an end cap;
102 positioning the convex end part;
103 welding material;
1111 a cannula mounting part;
2, sleeving a sleeve;
axial direction A;
and D, radial direction.
Detailed Description
An exemplary embodiment of the present invention is described below with reference to fig. 2. For convenience of description, the direction indicated by the arrow a in the drawing is defined as an axial direction, and the direction indicated by the arrow D in the drawing is defined as a radial direction, unless otherwise specified.
The end cover 111 of the torque converter is made of a metal stamping, and a sleeve mounting portion 1111 projects outward in the axial direction a of the torque converter in the middle of the end cover. The bushing mounting portion 1111 is cylindrical and also has a positioning projection of a first specification, that is, the outer shape of the bushing mounting portion 1111 formed by punching can be adapted to be connected to a certain type of engine crankshaft to serve as the positioning projection. The stamping process ensures that the end cap 111 including the locating boss is manufactured at a lower cost.
In order to provide a detent projection for a torque converter adapted to different types of engines, the present embodiment provides a tubular sleeve 2. Preferably, the inner diameter of the sleeve 2 is slightly smaller than the outer diameter of the sleeve mounting portion 1111, and the sleeve 2 is engaged with the sleeve mounting portion 1111 in an interference fit manner by applying a pressure toward the inside of the torque converter to the sleeve 2 in the axial direction a. The sleeve 2 and the end cap 111 that are completely mounted are referred to as a positioning boss assembly in the mounted state. The outer diameter of the sleeve 2 is larger than that of the sleeve mounting portion 1111, so that the sleeve 2 in the mounted state constitutes a positioning boss having a second specification different from the first specification, and can be adapted to be connected to another type of engine crankshaft.
In the above, by selectively mounting the sleeve 2, the torque converter can be adapted to two different types of engine crankshafts. Two implementations that enable the torque converter to be adapted to a greater variety of engine crankshafts are described next.
In the first implementation, the ferrule 2 mounted to the ferrule mounting portion 1111 is further machined to a suitable size so as to constitute positioning projections of different specifications.
In the second implementation manner, the sleeves 2 with different outer diameter sizes are provided on the production line, and the sleeves 2 with different sizes are mounted to the sleeve mounting portion 1111 as required, so that the positioning protrusions with different specifications are formed.
In summary, the present invention of the locating boss assembly can be adapted to a manufacturing line that requires N different sizes of locating bosses to be provided by N-1 different outer diameters of the ferrule 2, plus the ferrule mounting portion 1111, which provides the smallest size of locating boss.
The specification of the positioning projection or the positioning projection assembly refers to the dimension in the radial direction D. Next, another advantage of the positioning boss or the positioning boss assembly to which the sleeve 2 can be attached will be described.
Preferably, the length of the inventive sleeve 2 in the axial direction a is greater than its wall thickness in the radial direction D. The tubular sleeve 2 is formed by a simple process and can be cut from a long sleeve blank for a plurality of sleeves 2 having the same dimensions in the radial direction, including the inner and outer diameter dimensions. Sleeves 2 having short sections of different axial lengths are cut out of the sleeve blank to suit different assembly needs. Alternatively, the axial length of the sleeve 2 in the mounted state may be further finished. Thus, the positioning lug or the positioning lug assembly which can be attached to the sleeve 2 can be adapted to different installation environments in the axial direction.
The invention has at least one of the following advantages:
(i) the end cover 111 with the sleeve mounting portion 1111 is manufactured by using metal stamping parts, production efficiency is high, and the requirement of the first specification positioning projection can be met.
(ii) Through install the sleeve pipe 2 of different external diameters additional in the periphery of sleeve pipe installation portion 1111, realized other different specifications location protruding demands in a flexible way.
(iii) The sleeve 2 is mounted on the outer periphery of the sleeve mounting portion 1111 in a manner of being press-fitted, and the assembling process is simple and the production efficiency is high.
(iv) Compared with the solid or special-shaped positioning convex end part in the prior art, the tubular sleeve 2 saves raw materials, has simple production process and low manufacturing cost.
(v) The tubular sleeve 2 is more suitable for mass production and the sleeve blank is conveniently cut into sleeves 2 of different radial lengths, and the sleeve 2 in the mounted state is also conveniently finished to the appropriate length in the axial direction.
Of course, the present invention is not limited to the above-described embodiments, and those skilled in the art can make various modifications to the above-described embodiments of the present invention without departing from the scope of the present invention under the teaching of the present invention. For example:
(i) the end cap 111 of the present invention is not limited to being stamped and formed of metal, and may be formed using other materials or using other forming processes.
(ii) The sleeve 2 of the present invention is not limited to a tubular shape, and may be a positioning boss portion having another shape.
(iii) The connection mode of the ferrule 2 and the ferrule mounting portion 1111 of the present invention is not limited to the interference fit by the pressing, and may be a connection by another connection structure or connection material, such as a screw/bolt connection or welding.
Claims (10)
1. A male positioning member for a torque converter, the male positioning member comprising an end cover having a sleeve mounting portion and a sleeve mountable to an outer periphery of the sleeve mounting portion; wherein the content of the first and second substances,
the sleeve mounting part comprises a positioning protrusion with a first specification;
in an attached state of the grommet to the grommet attaching portion, the grommet constitutes a positioning projection of a second specification.
2. The locating boss assembly of claim 1, wherein an inner diameter of the bushing is smaller than an outer diameter of the bushing mount.
3. The locating boss assembly of claim 2, wherein the bushing is mounted to the bushing mount by being axially pressurized.
4. The locating boss assembly of claim 1, wherein the axial length of the sleeve is greater than a wall thickness thereof in a radial direction.
5. The locating boss assembly of claim 1, wherein the end cap is an integrally formed component.
6. The locating boss assembly of claim 1, wherein the end cap is a metal stamping.
7. The locating boss assembly of claim 1, wherein the bushing is one of a plurality of bushing alternatives, the bushing alternatives differing in outer diameter.
8. A machining method of a positioning male assembly, wherein the positioning male assembly is the positioning male assembly of any one of claims 1 to 7, and the machining method comprises the following steps:
providing an end cap of the locating male component obtained by stamping a metal blank;
providing a sleeve, wherein the inner diameter of the sleeve is smaller than the outer diameter of the sleeve mounting part, and the outer diameter of the sleeve is larger than the outer diameter of the sleeve mounting part; and
applying pressure axially causes the ferrule to be mounted to the ferrule mounting portion in an interference fit.
9. The method of claim 8, wherein the sleeve is finish machined such that the sleeve forms a locating boss of a particular gauge.
10. A torque converter comprising the aligning male assembly of any one of claims 1 through 7.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/105704 WO2020051873A1 (en) | 2018-09-14 | 2018-09-14 | Pilot assembly, processing method of pilot assembly and hydraulic torque converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112424505A true CN112424505A (en) | 2021-02-26 |
Family
ID=69776591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880095713.7A Pending CN112424505A (en) | 2018-09-14 | 2018-09-14 | Positioning convex component, machining method of positioning convex component and hydraulic torque converter |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112424505A (en) |
| WO (1) | WO2020051873A1 (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002039322A (en) * | 2000-07-19 | 2002-02-06 | Nissan Motor Co Ltd | Cover for torque converter and method of manufacturing it |
| JP2002048216A (en) * | 2000-08-07 | 2002-02-15 | Aisin Aw Co Ltd | Assembling method of torque convertor and set plate |
| JP2004034178A (en) * | 2002-06-28 | 2004-02-05 | Aisin Aw Co Ltd | Method for assembling sleeve shaft member with shaft-like member, and fixture used therein |
| CN1699797A (en) * | 2004-05-17 | 2005-11-23 | 捷特科株式会社 | Apparatus for driving an oil pump for automatic transmission |
| US20080149443A1 (en) * | 2006-12-21 | 2008-06-26 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Pilot boss for a torque converter cover and method of forming the same |
| US20080277226A1 (en) * | 2007-05-09 | 2008-11-13 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Stamped pilot welded to a cover |
| EP2065618A1 (en) * | 2007-11-29 | 2009-06-03 | ZF Friedrichshafen AG | Hydro-dynamic coupling device, especially a torque converter |
| CN202091037U (en) * | 2011-04-26 | 2011-12-28 | 浙江吉利汽车研究院有限公司 | Connecting structure for engine and hydraulic torque converter of automobile |
| JP2013072494A (en) * | 2011-09-28 | 2013-04-22 | Jtekt Corp | Oil pump device |
| CN205136507U (en) * | 2014-10-17 | 2016-04-06 | 爱信精机株式会社 | Integrated structure of power supply and derailleur |
| CN206092860U (en) * | 2016-10-19 | 2017-04-12 | 卡特彼勒（青州）有限公司 | Torque converter and mechanical including its operation |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19626685A1 (en) * | 1995-07-19 | 1997-01-23 | Luk Getriebe Systeme Gmbh | Hydrodynamic torque-converter for motor vehicle industry |
| DE10024191B4 (en) * | 1999-05-21 | 2012-06-28 | Schaeffler Technologies Gmbh & Co. Kg | Torque transfer device |
| CN201198830Y (en) * | 2008-04-18 | 2009-02-25 | 安徽江淮汽车股份有限公司 | Oil pump for gear box |
| KR102478956B1 (en) * | 2014-09-25 | 2022-12-16 | 유니프레스 가부시키가이샤 | Dynamic damper |
| CN106369129A (en) * | 2015-07-20 | 2017-02-01 | 上汽通用汽车有限公司 | Hydraulic torque converter and vehicle with same |
-
2018
- 2018-09-14 CN CN201880095713.7A patent/CN112424505A/en active Pending
- 2018-09-14 WO PCT/CN2018/105704 patent/WO2020051873A1/en active Application Filing
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002039322A (en) * | 2000-07-19 | 2002-02-06 | Nissan Motor Co Ltd | Cover for torque converter and method of manufacturing it |
| JP2002048216A (en) * | 2000-08-07 | 2002-02-15 | Aisin Aw Co Ltd | Assembling method of torque convertor and set plate |
| JP2004034178A (en) * | 2002-06-28 | 2004-02-05 | Aisin Aw Co Ltd | Method for assembling sleeve shaft member with shaft-like member, and fixture used therein |
| CN1699797A (en) * | 2004-05-17 | 2005-11-23 | 捷特科株式会社 | Apparatus for driving an oil pump for automatic transmission |
| US20080149443A1 (en) * | 2006-12-21 | 2008-06-26 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Pilot boss for a torque converter cover and method of forming the same |
| US20080277226A1 (en) * | 2007-05-09 | 2008-11-13 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Stamped pilot welded to a cover |
| EP2065618A1 (en) * | 2007-11-29 | 2009-06-03 | ZF Friedrichshafen AG | Hydro-dynamic coupling device, especially a torque converter |
| CN202091037U (en) * | 2011-04-26 | 2011-12-28 | 浙江吉利汽车研究院有限公司 | Connecting structure for engine and hydraulic torque converter of automobile |
| JP2013072494A (en) * | 2011-09-28 | 2013-04-22 | Jtekt Corp | Oil pump device |
| CN205136507U (en) * | 2014-10-17 | 2016-04-06 | 爱信精机株式会社 | Integrated structure of power supply and derailleur |
| CN206092860U (en) * | 2016-10-19 | 2017-04-12 | 卡特彼勒（青州）有限公司 | Torque converter and mechanical including its operation |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020051873A1 (en) | 2020-03-19 |
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