CN103671804B - A kind of torque converter pump impeller and a kind of torque converter - Google Patents
A kind of torque converter pump impeller and a kind of torque converter Download PDFInfo
- Publication number
- CN103671804B CN103671804B CN201310676600.5A CN201310676600A CN103671804B CN 103671804 B CN103671804 B CN 103671804B CN 201310676600 A CN201310676600 A CN 201310676600A CN 103671804 B CN103671804 B CN 103671804B
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- CN
- China
- Prior art keywords
- pump impeller
- torque converter
- seat
- shell
- core
- 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.)
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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
- F16H41/00—Rotary fluid gearing of the hydrokinetic type
- F16H41/24—Details
- F16H41/26—Shape of runner blades or channels with respect to function
-
- 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
Abstract
The present invention discloses a kind of torque converter pump impeller, comprise pump impeller seat and the cast aluminum impellers core of the pump impeller shell of steel and the cylinder shape of steel, pump impeller seat and pump impeller shell coaxial welding are fixed, cast aluminum impellers core is fixed on pump impeller shell and pump impeller seat by one casting, in cast aluminum impellers core, one casting has multiple cast aluminium blade, pump impeller seat is positioned at the one end inside pump impeller shell and is provided with the female end for hindering cast aluminum impellers core to move vertically, pump impeller seat is positioned at the outer radius portion inside pump impeller shell and is provided with the conical surface, and the external diameter of the conical surface reduces along female end gradually to the pump impeller seat the other end, the periphery that pump impeller seat is positioned at the part inside pump impeller shell is provided with multiple groove, the inwall of pump impeller shell is provided with multiple pit. owing to cast aluminum impellers core and cast aluminium blade are connected as a single entity by one casting and pump impeller shell and pump impeller seat, so, this scheme reduces the weight of pump impeller entirety, and manufacturing process is simple, it is to increase the efficiency of pump impeller. the invention also discloses a kind of torque converter comprising above-mentioned torque converter pump impeller.
Description
Technical field
The present invention relates to torque converter technical field, particularly relate to a kind of torque converter pump impeller and a kind of torque converter.
Background technology
Torque converter is often referred to fluid torque-converter, comprises pump impeller, turbine and guide wheel three part, and torque converter is arranged between engine and variator, is working medium taking hydraulic efficiency oil, plays a part to transmit torque, become square, speed change and clutch.
Prior art, when producing pump impeller, forms impeller after the general uniform thickness steel plate stamping weldering adopting a mm thick, although achieving industrialized mass, but, its shortcoming is that dynamic performance is poor, therefore power consumption is big, and efficiency is low. Also having a kind of structure to make use of non-uniform thickness (i.e. aerofoil profile) blade, but need to process a lot of the grooves corresponding with blade quantity on pump impeller box hat, then inlayed up one by one by blade, not only assembling precision is difficult to guarantee, and time-consuming takes a lot of work.
Therefore, how to solve the inefficient problem of pump impeller, it is the current technical issues that need to address of those skilled in the art.
Summary of the invention
In view of this, the present invention provides a kind of torque converter pump impeller, for improving the efficiency of pump impeller.
In order to solve the problem, the present invention provides a kind of torque converter pump impeller, comprise pump impeller seat and the cast aluminum impellers core of the pump impeller shell of steel and the cylinder shape of steel, described pump impeller seat and described pump impeller shell coaxial welding are fixed, described cast aluminum impellers core is fixed on described pump impeller shell and described pump impeller seat by one casting, in described cast aluminum impellers core, one casting has multiple cast aluminium blade, described pump impeller seat is positioned at the one end inside described pump impeller shell and is provided with the female end for hindering described cast aluminum impellers core to move vertically, described pump impeller seat is positioned at the outer radius portion inside described pump impeller shell and is provided with the conical surface, and the external diameter of the described conical surface reduces gradually along described female end to the described pump impeller seat the other end, the periphery that described pump impeller seat is positioned at the part inside described pump impeller shell is provided with multiple groove, the inwall of described pump impeller shell is provided with multiple pit.
Preferably, described pump impeller seat is provided with the shaft shoulder for being welded and fixed with described pump impeller shell, and the described shaft shoulder is positioned at the miner diameter end of the described conical surface.
Preferably, multiple described groove is uniformly distributed in the periphery of described pump impeller seat.
Preferably, the axis being parallel of multiple described groove and described pump impeller seat is arranged.
Preferably, the cross section of described groove is circular arc.
Preferably, multiple described pit is uniformly distributed in the bottom of described pump impeller shell.
Preferably, described cast aluminium blade is airfoil fan.
Present invention also offers a kind of torque converter, comprise the torque converter pump impeller described in above-mentioned arbitrary item.
The present invention provides a kind of torque converter pump impeller, comprise pump impeller seat and the cast aluminum impellers core of the pump impeller shell of steel and the cylinder shape of steel, described pump impeller seat and described pump impeller shell coaxial welding are fixed, described cast aluminum impellers core is fixed on described pump impeller shell and described pump impeller seat by one casting, in described cast aluminum impellers core, one casting has multiple cast aluminium blade, described pump impeller seat is positioned at the one end inside described pump impeller shell and is provided with the female end for hindering described cast aluminum impellers core to move vertically, described pump impeller seat is positioned at the outer radius portion inside described pump impeller shell and is provided with the conical surface, and the external diameter of the described conical surface reduces gradually along described female end to the described pump impeller seat the other end, the periphery that described pump impeller seat is positioned at the part inside described pump impeller shell is provided with multiple groove, the inwall of described pump impeller shell is provided with multiple pit. the conical surface external diameter of pump impeller seat and female end are possible to prevent cast aluminum impellers core and alter vertically, the pit of multiple groove that pump impeller seat periphery is arranged and pump impeller shell inwall is possible to prevent cast aluminum impellers core and relatively rotates, aluminium liquid and the contact area of pump impeller shell and pump impeller seat can also be increased in the process of cast bead filler, be conducive to material feeding, prevent cast aluminum impellers core inner from shrinkage cavity occurring, thus make cast aluminum impellers core more be firmly fixed at pump impeller shell and pump impeller seat. owing to pump impeller seat and the pump impeller shell of steel welds together, and cast aluminum impellers core is connected as a single entity by one casting and pump impeller shell and pump impeller seat together with cast aluminium blade, so, compared with being the pump impeller of steel with entirety in prior art, this scheme reduces the weight of pump impeller entirety, and cast aluminum impellers core can not loosen through long-term running, thus simplify technique, substantially increase the efficiency of pump impeller.
Present invention also offers a kind of torque converter comprising above-mentioned torque converter pump impeller, the derivation of the useful effect that the derivation of the useful effect that this torque converter produces and above-mentioned torque converter pump wheel bring is substantially similar, therefore repeats no more herein.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, it is briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural front view of a kind of torque converter pump impeller that Fig. 1 provides for specific embodiment of the invention scheme;
The structure rear view of a kind of torque converter pump impeller that Fig. 2 provides for specific embodiment of the invention scheme;
The structure sectional view of a kind of torque converter pump impeller that Fig. 3 provides for specific embodiment of the invention scheme;
Fig. 4 is the partial enlargement figure in A portion in Fig. 3;
The blast structural representation of a kind of torque converter pump impeller that Fig. 5 provides for specific embodiment of the invention scheme;
Fig. 6 is the side-view of Fig. 5;
Fig. 7 is the structural representation of the pump impeller seat of torque converter pump impeller in specific embodiment of the invention scheme;
In Fig. 1 to Fig. 7:
Pump impeller shell-1, pump impeller seat-2, groove-3, cast aluminum impellers core-4, pit-5, female end-6, the conical surface-7, the shaft shoulder-8.
Embodiment
The core of the present invention is to provide a kind of torque converter pump impeller, for improving the efficiency of pump impeller.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only the present invention's part embodiment, instead of whole embodiments. Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
The structural front view of a kind of torque converter pump impeller that Fig. 1 provides for specific embodiment of the invention scheme; The structure rear view of a kind of torque converter pump impeller that Fig. 2 provides for specific embodiment of the invention scheme; The structure sectional view of a kind of torque converter pump impeller that Fig. 3 provides for specific embodiment of the invention scheme; Fig. 4 is the partial enlargement figure in A portion in Fig. 3; The blast structural representation of a kind of torque converter pump impeller that Fig. 5 provides for specific embodiment of the invention scheme; Fig. 6 is the side-view of Fig. 5; Fig. 7 is the structural representation of the pump impeller seat of torque converter pump impeller in specific embodiment of the invention scheme.
In a kind of specific embodiment, the present invention provides a kind of torque converter pump impeller, and this torque converter pump wheel specifically comprises pump impeller shell and always becomes and cast aluminum impellers core 4, and pump impeller shell always becomes to comprise pump impeller shell 1 and pump impeller seat 2.
Concrete, pump impeller shell 1 and pump impeller seat 2 are steel; Pump impeller seat 2 is round shape, for being sheathed on output shaft. Pump impeller seat 2 and pump impeller shell 1 coaxial welding are fixed together, cast aluminum impellers core 4 is fixed on pump impeller shell 1 and pump impeller seat 2 by disposable overall casting, blade on cast aluminum impellers core 4 is all cast aluminium blade, and namely cast aluminium blade is also fixed on cast aluminum impellers core 4 by one casting.
When producing pump impeller, first pump impeller seat 2 and pump impeller shell 1 are welded together, then place mould toward 1 li, pump impeller shell, then toward cast aluminum liquid in mould, 4, cast aluminum impellers core is naturally shaping by mould in box hat, eventually passes simple machining and reaches required size and form and position tolerance. This scheme uses the husky core mold of ripe impeller, and the cast aluminum impellers core 4 after cast is naturally shaping, and is connected as a single entity with pump impeller shell 1, can not loosen through long-term running, efficiency height.
It should be noted that, pump impeller seat 2 in this scheme is positioned at the one end inside pump impeller shell 1 and (is namely positioned at one end that torque converter pump wheel is inner, the right-hand member of pump impeller seat 2 in Fig. 3) it is provided with female end 6, this female end 6, for hindering cast aluminum impellers core 4 motion vertically, ensures the safe operation of pump impeller. Pump impeller seat 2 is positioned at the outer radius portion inside pump impeller shell 1 and is provided with the conical surface 7, and the external diameter of the conical surface 7 reduces gradually along female end 6 to pump impeller seat 2 the other end (in Fig. 3 the left end of pump impeller seat 2), namely female end 6 is arranged in the bigger diameter end (right-hand member of Fig. 4 conical surface 7) of the conical surface 7, and the setting of the conical surface 7 is possible to prevent cast aluminum impellers core 4 and skids off vertically. By the conical surface 7 and female end 6 acting in conjunction, this scheme can ensure that cast aluminum impellers core 4 is firmly fixed in pump impeller shell 1, thus ensure that the safe operation of pump impeller.
It should be noted that, the periphery that pump impeller seat 2 is positioned at the part inside pump impeller shell 1 is also provided with multiple groove 3, and the inwall of pump impeller shell 1 is provided with multiple pit 5.For preventing, cast aluminum impellers core 4 and pump impeller seat 2 from relatively rotating groove 3, and pit 5 is possible to prevent between cast aluminum impellers core 4 and pump impeller shell 1 to relatively rotate. Groove 3 and pit 5 can also increase aluminium liquid and the contact area of pump impeller shell 1 and pump impeller seat 2 in the process of cast cast aluminum impellers core 4, be conducive to material feeding, prevent cast aluminum impellers core 4 inside from shrinkage cavity occurring, thus make cast aluminum impellers core 4 more be firmly fixed at pump impeller shell 1 and pump impeller seat 2.
Owing to the pump impeller seat 2 of steel welds together with pump impeller shell 1, and cast aluminum impellers core 4 is connected as a single entity by one casting and pump impeller shell 1 and pump impeller seat 2 together with cast aluminium blade, so, compared with being the pump impeller of steel with entirety in prior art, this scheme reduces the weight of pump impeller entirety, and cast aluminum impellers core 4 can not loosen through long-term running, thus improve the efficiency of pump impeller.
This torque converter pump impeller is mainly used on the overall movement torque converter of the slow speed of revolution, and the advantage of this pump impeller is: factorial praluction, and disposition is reasonable, and precisely, degree of cleaning height, energy transient equilibrium, steadily, noise is little, efficiency height, and the life-span is long, and volume is little in running in assembling.
For the ease of being welded and fixed of pump impeller seat 2 and pump impeller shell 1, preferably, pump impeller seat 2 in the present embodiment is also provided with the shaft shoulder 8, and this shaft shoulder 8 is arranged in the miner diameter end (left end of Fig. 4 conical surface 7) of the conical surface 7, and the shaft shoulder 8 of miner diameter end is for coordinating with pump impeller shell 1 and welds together with pump impeller shell 1.
In order to make the mass distribution of pump impeller more even, it may be preferred that the multiple grooves 3 in this scheme are uniformly distributed in the periphery of pump impeller seat 2. More preferably, multiple groove 3 all axis direction with pump impeller seat 2 is arranged in parallel, and so arranges, is also convenient to the processing of groove 3. Equally, in order to make the mass distribution of pump impeller more even, multiple pits 5 are also uniformly distributed in the bottom of pump impeller shell 1, are preferably provided with four pits 5 in this scheme in the bottom of pump impeller shell 1.
It should be noted that, groove 3 can be dove-tail form groove, rectangular tank or circular arc groove etc., and for the ease of processing, this scheme advantageous cross sections is the groove 3 of circular arc.
It should be noted that, owing to this scheme adopts the mode of one casting to process cast aluminium blade, so, this scheme have employed non-uniform thickness (i.e. aerofoil profile) blade and one-time cast-forming.
In order to ensure the precision of casting die, in this scheme, mould when machining airfoil blades and cast aluminum impellers core 4 is all according to accurate coordinate data, then is processed into through digital control wire-electrode cutting lathe.
Present invention also offers a kind of torque converter comprising above-mentioned torque converter pump impeller, the derivation of the useful effect that the derivation of the useful effect that this torque converter produces and above-mentioned torque converter pump wheel bring is substantially similar, therefore repeats no more herein.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are enable to realize or use the present invention. To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments. Therefore, the present invention can not be limited in these embodiments shown in this article, but be met the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. a torque converter pump impeller, comprise pump impeller seat (2) and the cast aluminum impellers core (4) of the pump impeller shell (1) of steel and the cylinder shape of steel, described pump impeller seat (2) and described pump impeller shell (1) coaxial welding are fixed, it is characterized in that, described cast aluminum impellers core (4) is fixed on described pump impeller shell (1) and described pump impeller seat (2) by one casting, in described cast aluminum impellers core (4), one casting has multiple cast aluminium blade, one end that described pump impeller seat (2) is positioned at described pump impeller shell (1) inner side is provided with the female end (6) for hindering described cast aluminum impellers core (4) to move vertically, the outer radius portion that described pump impeller seat (2) is positioned at described pump impeller shell (1) inner side is provided with the conical surface (7), and the external diameter of the described conical surface (7) reduces gradually along described female end (6) to described pump impeller seat (2) the other end, the periphery of the part that described pump impeller seat (2) is positioned at described pump impeller shell (1) inner side is provided with multiple groove (3), the inwall of described pump impeller shell (1) is provided with multiple pit (5).
2. torque converter pump impeller according to claim 1, it is characterized in that, described pump impeller seat (2) is provided with the shaft shoulder (8) for being welded and fixed with described pump impeller shell (1), and the described shaft shoulder (8) is positioned at the miner diameter end of the described conical surface (7).
3. torque converter pump impeller according to claim 1, it is characterised in that, multiple described groove (3) is uniformly distributed in the periphery of described pump impeller seat (2).
4. torque converter pump impeller according to claim 3, it is characterised in that, the axis being parallel of multiple described groove (3) and described pump impeller seat (2) is arranged.
5. torque converter pump impeller according to claim 4, it is characterised in that, the cross section of described groove (3) is circular arc.
6. torque converter pump impeller according to claim 1, it is characterised in that, multiple described pit (5) is uniformly distributed in the bottom of described pump impeller shell (1).
7. torque converter pump impeller according to the arbitrary item of claim 1 to 6, it is characterised in that, described cast aluminium blade is airfoil fan.
8. a torque converter, it is characterised in that, comprise the torque converter pump impeller described in the arbitrary item of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310676600.5A CN103671804B (en) | 2013-12-12 | 2013-12-12 | A kind of torque converter pump impeller and a kind of torque converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310676600.5A CN103671804B (en) | 2013-12-12 | 2013-12-12 | A kind of torque converter pump impeller and a kind of torque converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103671804A CN103671804A (en) | 2014-03-26 |
| CN103671804B true CN103671804B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310676600.5A Expired - Fee Related CN103671804B (en) | 2013-12-12 | 2013-12-12 | A kind of torque converter pump impeller and a kind of torque converter |
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| CN (1) | CN103671804B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401593A (en) * | 2016-05-19 | 2017-11-28 | 王祥 | Mixed type torque-converters |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004245412A (en) * | 2003-01-23 | 2004-09-02 | Nissan Motor Co Ltd | Impeller of torque converter and its manufacturing method |
| CN201373081Y (en) * | 2009-02-27 | 2009-12-30 | 德阳市永翼机械有限公司 | Novel bi-turbo hydraulic torque converter |
| DE102011011471A1 (en) * | 2010-03-11 | 2011-09-15 | Schaeffler Technologies Gmbh & Co. Kg | Impeller for use as stator in hydrodynamic component, has blade shape part provided with connecting portions that are molded to form respective connections into inner and outer carrier rings, which are arranged coaxial to each other |
| CN102441642A (en) * | 2011-12-06 | 2012-05-09 | 中国航空工业集团公司北京航空材料研究院 | Method for preventing blades of whole turbine impeller of high temperature alloy from under-casting |
| CN202811485U (en) * | 2012-07-09 | 2013-03-20 | 芜湖水泵制造有限公司 | Outer impeller of water-feeding pump |
-
2013
- 2013-12-12 CN CN201310676600.5A patent/CN103671804B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004245412A (en) * | 2003-01-23 | 2004-09-02 | Nissan Motor Co Ltd | Impeller of torque converter and its manufacturing method |
| CN201373081Y (en) * | 2009-02-27 | 2009-12-30 | 德阳市永翼机械有限公司 | Novel bi-turbo hydraulic torque converter |
| DE102011011471A1 (en) * | 2010-03-11 | 2011-09-15 | Schaeffler Technologies Gmbh & Co. Kg | Impeller for use as stator in hydrodynamic component, has blade shape part provided with connecting portions that are molded to form respective connections into inner and outer carrier rings, which are arranged coaxial to each other |
| CN102441642A (en) * | 2011-12-06 | 2012-05-09 | 中国航空工业集团公司北京航空材料研究院 | Method for preventing blades of whole turbine impeller of high temperature alloy from under-casting |
| CN202811485U (en) * | 2012-07-09 | 2013-03-20 | 芜湖水泵制造有限公司 | Outer impeller of water-feeding pump |
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| Publication number | Publication date |
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| CN103671804A (en) | 2014-03-26 |
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