CN201511339U - Turbine end piston ring installer of turbo-charger - Google Patents
Turbine end piston ring installer of turbo-charger Download PDFInfo
- Publication number
- CN201511339U CN201511339U CN 200920187182 CN200920187182U CN201511339U CN 201511339 U CN201511339 U CN 201511339U CN 200920187182 CN200920187182 CN 200920187182 CN 200920187182 U CN200920187182 U CN 200920187182U CN 201511339 U CN201511339 U CN 201511339U
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- piston ring
- end piston
- whirlpool
- main shaft
- turbocharger
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Abstract
The utility model discloses a turbine end piston ring installer of a turbo-charger, which has a cylindrical structure; an inner hole of the cylinder is a cylindrical hole (6) in clearance fit with a main shaft neck (8) on a turbine main shaft (1); the outer surface of the cylinder is a guide taper surface (4); and the cylindrical hole (6) and the guide taper surface (4) are coaxial. The technical scheme can ensure that the opening extent of an turbine end piston ring opening is within a reasonable range when the turbine end piston ring is installed, the assembled turbine end piston ring is prevented from deformation, scratches between the piston ring and a main shaft annular groove are avoided, and phenomena like oil leakage and air leakage at the turbine end of the turbo-charge even stuck main shaft of the turbo-charge can be reduced, thereby efficiently ensuring the assembly quality of the turbine end piston ring.
Description
Technical field
The utility model belongs to the technical field of automobile making technology and equipment thereof, relates to the manufacturing technology of turbocharger, and more particularly, the utility model relates to a kind of whirlpool end piston ring erector of turbocharger.
Background technology
Turbocharging technology is used to improve the dynamic property of engine, reduces emission of harmful substances.
In turbocharger, turbine and main shaft weld together, and turbine is positioned at volute, drive main axis rotation under high-temp waste gas impacts; Main shaft is positioned at middle case, is lubricated and cools off by machine oil.In order to prevent that the middle case inner engine oil from leaking in the volute by the assemblage gap of main shaft, and prevent that high-temp waste gas is scurried in the middle case by the assemblage gap of main shaft in the volute, generally on main shaft, be provided with cannelure one, an opening piston ring is installed in the groove near the volute end.
In normal operating conditions, the piston ring radial outer end is stuck in and keeps motionless in the middle case, and the piston ring radial inner end is in the cannelure of main shaft, and main shaft rotates relative to piston ring; Gap-clearance of piston rings has certain interval, and the cannelure of piston ring internal diameter, axial two end faces of piston ring and main shaft all has certain clearance.This labyrinth seal structure can effectively be isolated waste gas in middle case inner engine oil and the volute, simultaneously each fit clearance can guarantee piston ring and main shaft obtain sufficient lubrication and avoid piston ring and main shaft between stuck.
The opening piston ring of whirlpool end is very important parts in the turbocharger, except appropriate design element size and tolerance, control machining accuracy, utilizing suitable assembly tool to assemble is a very important link that guarantees the turbocharger quality.Whirlpool end piston ring is the elastic wear-resisting sheet metal with strong rigidity, the control of the generally all less and tolerance of the physical dimension of whirlpool end piston ring and main shaft cannelure is strict, and process in the main shaft cannelure is not easy to operate, assembly quality is difficult to control so whirlpool end piston ring is assembled to.In the end piston ring assembling process of turbocharger whirlpool, owing to the improper use assembly tool and assembly technology causes booster whirlpool end leakage of oil in use, gas blowby, engine motor oil consumption is too much, main shaft is stuck etc. that phenomenon happens occasionally.
Under the free state, the aperture of whirlpool end piston ring is less than the diameter of main shaft cannelure outer end, so at first need whirlpool end piston ring is opened along opening during ring installation.If not by proper implements, it is excessive or too small to cause whirlpool end gap-clearance of piston rings to open amplitude easily in installation process.If it is excessive that amplitude is opened in whirlpool end gap-clearance of piston rings, plastic deformation will take place in whirlpool end piston ring, and whirlpool end piston ring broke away from the main shaft cannelure when this will cause follow-up assembling; In addition, the whirlpool end piston ring of plastic deformation can lose efficacy under hot environment in advance; If it is too small that amplitude is opened in whirlpool end gap-clearance of piston rings, whirlpool end piston ring may not adorn or whirlpool end piston ring and main shaft cannelure between produce to scratch and influence matched in clearance.These all can cause booster whirlpool end gas leak of the oil leakage even booster main shaft stuck.
In addition, because whirlpool end piston ring and main shaft cannelure size are less, whirlpool end piston ring rigidity is bigger, if do not have suitable assembly tool and assembly technology, the assembling process of whirlpool end piston ring will be an effort, consuming time, process that assembly quality is difficult to guarantee.
The utility model content
Problem to be solved in the utility model provides a kind of whirlpool end piston ring erector of turbocharger, its objective is convenient, fast, efficiently whirlpool end piston ring is installed on turbine wheel shaft, and assembly quality can reliably be guaranteed.
To achieve these goals, the technical scheme taked of the utility model is:
The whirlpool end piston ring erector of this turbocharger provided by the utility model, be used for whirlpool end piston ring is assembled in the main shaft cannelure of turbocharger, described whirlpool end piston ring erector is columnar structured, described columnar endoporus is that the main shaft axle journal on cylindrical hole and the turbine spindle forms matched in clearance, described columnar outer surface is the guiding taper seat, and described cylindrical hole is coaxial with the guiding taper seat.
For making the utility model more perfect, more detailed and concrete technical scheme below also further having proposed, to obtain best practical function, realize goal of the invention better, and improve novelty of the present utility model and creativeness:
The diameter dimension of the big end of described guiding taper seat is greater than the diameter dimension of cannelure outer end on the turbine, and the diameter dimension of described guiding taper seat small end is less than the endoporus aperture size of whirlpool end piston ring under free state.
The big end of described columnar outer surface tapering is provided with one section thin cylinder, its endoporus is that the cannelure outer end is a matched in clearance on assembling and positioning hole and the turbine, the outer surface of described thin cylinder is the cylinder guiding face, and described assembling and positioning hole is coaxial with the cylinder guiding face.
The axial length in described assembling and positioning hole is less than the axial length of cannelure outer end.Cylinder guiding face diameter is bigger than the diameter of cannelure outer end.
The cone angle of described guiding taper seat is 5 °～9 °.
The axial length of described cylinder guiding face is greater than the axial length in assembling and positioning hole.
The utility model adopts technique scheme, can guarantee when whirlpool end piston ring is installed, the amplitude of opening of whirlpool end gap-clearance of piston rings is in reasonable range, whirlpool end piston ring after preventing to assemble deforms, avoided producing between piston ring and main shaft cannelure and scratched, reduce the generation of the end leakage of oil of booster whirlpool, gas leakage even booster main shaft stuck phenomenon, effectively guaranteed the assembly quality of whirlpool end piston ring; By implementing the utility model, the installation process of turbocharger whirlpool end piston ring will be light, convenient, fast a, process efficiently, improve efficiency of assembling greatly; The utility model volume is little, simple in structure, easy operating; Both be applicable to the assembling in the small lot advanced development, also be suitable for the assembling in the large-scale production in enormous quantities; Erector adopts common stainless steel processing and forms through Overheating Treatment, and process and surface treatment process are simple, and material possesses certain intensity, smooth surface, wear-resisting, low cost of manufacture.
Description of drawings
Below expressed content of each width of cloth accompanying drawing of this specification and the mark among the figure are briefly explained:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is an installment state schematic diagram of the present utility model.
Be labeled as among the figure:
1, turbine spindle, 2, whirlpool end piston ring, 3, whirlpool end piston ring erector, 4, the guiding taper seat, 5, the cylinder guiding face, 6, cylindrical hole, 7, the assembling and positioning hole, 8, the main shaft axle journal, 9, the cannelure outer end, 10, the main shaft cannelure, 11, turbine.
The specific embodiment
Contrast accompanying drawing below, by description to embodiment, to effect and operation principle, the manufacturing process of the mutual alignment between the shape of the specific embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and manipulate method etc., be described in further detail, inventive concept of the present utility model, technical scheme had more complete, accurate and deep understanding to help those skilled in the art.
The of the present utility model structure expressed as Fig. 1, Fig. 2, the whirlpool end piston ring erector for a kind of turbocharger is used for whirlpool end piston ring 2 is assembled in the main shaft cannelure 10 of turbocharger.
In order to solve the problem that exists at the described present known technology of this specification background technology part and to overcome its defective, realize convenient, fast, efficiently whirlpool end piston ring is installed on turbine wheel shaft, and the technical scheme that the goal of the invention that assembly quality can reliably be guaranteed, the utility model are taked is:
As shown in Figure 1, the whirlpool end piston ring erector 3 of this turbocharger provided by the utility model is columnar structured, described columnar endoporus is that the main shaft axle journal 8 on cylindrical hole 6 and the turbine spindle 1 forms matched in clearance, described columnar outer surface is guiding taper seat 4, and described cylindrical hole 6 is coaxial with guiding taper seat 4.
Fig. 1 represents: whirlpool end piston ring erector 3 outer surfaces are made up of guiding taper seat 4 and cylinder guiding face 5, and inner surface is made up of cylindrical hole 6 and assembling and positioning hole 7, carries out chamfering between cylindrical hole 6 and assembling and positioning hole 7.Cylindrical hole 6 is in the inside of guiding taper seat 4, and the aperture of cylindrical hole 6 is greater than the diameter of main shaft axle journal 8, less than the diameter of cannelure outer end 9.
During use, whirlpool end piston ring 2 is inserted in and promotes forward from whirlpool end piston ring erector 3 small ends, advance main shaft cannelure 10 from big end.Said structure can guarantee the amplitude of opening of whirlpool end piston ring 2 openings in reasonable range, prevents that whirlpool end piston ring 2 from plastic deformation taking place, avoid whirlpool end piston ring 2 with scratch between the main shaft cannelure, scuffing.By the whirlpool end piston ring erector 3 that uses the utility model to provide, the installation process of whirlpool end piston ring 2 will be that light, convenient, fast a, process, and assembly quality efficiently can effectively be guaranteed.
In the control of manufacturing process, the guiding taper seat 4 on the necessary control whirlpool end piston ring erector 3 and the case hardness and the surface roughness of cylindrical hole 6.Case hardness can not be low excessively, otherwise whirlpool end piston ring erector 3 is frayed easily.Surface roughness value cannot be too high, otherwise all wearing and tearing easily of whirlpool end piston ring 2 and whirlpool end piston ring erector 3.
On material selection, should be taken into account that piston ring erector outer surface is often rubbed, and the thin characteristics of regional area wall thickness.The utility model is selected structural alloy steel for use, and the finished parts case hardness is higher, the smooth surface of guiding taper seat 4 and cylinder guiding face 5.
Below be concrete exemplifying embodiment of the present utility model:
One, guiding taper seat 4 hold greatly, the size Control of small end:
The diameter dimension of guiding taper seat 4 big ends described in the utility model guarantees that greater than the diameter dimension of cannelure outer end 9 on the turbine whirlpool end piston ring 2 can slip into main shaft cannelure 10.The diameter dimension of described guiding taper seat 4 small ends is less than the endoporus aperture size of whirlpool end piston ring 2 under free state.
Two, the structure of the big end of erector:
Guiding taper seat 4 big ends described in the utility model are provided with one section thin cylinder, its endoporus is assembling and positioning hole 7, cannelure outer end 9 is a matched in clearance on assembling and positioning hole 7 and the turbine, the outer surface of described thin cylinder is a cylinder guiding face 5, and described assembling and positioning hole 7 is coaxial with cylinder guiding face 5.
Big end at guiding taper seat 4 is provided with one section cylinder guiding face 5.Cylinder guiding face 5 is coaxial with the guiding conical surface 4, and diameter is bigger than the diameter of cannelure outer end 9.
Cylindrical hole 6 is provided with an assembling and positioning hole 7 at that end near cylinder guiding face 5.Assembling and positioning hole 7 is coaxial with cylinder guiding face 5, and the aperture is bigger than the diameter of cannelure outer end 9, and axial length is shorter than the axial length of cannelure outer end 9.
The smooth surface in cylindrical hole 6 and assembling and positioning hole 7.
Rationally determine the assembling and positioning pore diameter size: diameter is excessive, erector can't be accurately positioned in main shaft cannelure 10 outer ends on the one hand, be unfavorable for that piston ring installs, will cause on the other hand that piston ring erector cylinder guiding face wall thickness is too thin, insufficient strength and cause distortion; Diameter is too small, then can't fit with the cannelure outer end, and the piston ring erector lost efficacy.
Three, assembling and positioning hole 7 axial lengths:
The axial length in assembling and positioning described in the utility model hole 7 is less than the axial length of cannelure outer end 9.
Rationally determine assembling and positioning hole axial length: axial length is excessive or too small, and piston ring all can't directly enter in the main shaft cannelure 10 swimmingly.
Four, the tapering of guiding taper seat 4:
The cone angle of guiding taper seat 4 described in the utility model is 5 °～9 °.
The cone angle span of the guiding conical surface 4 is 5 °～9 °.The cone angle of control guiding taper seat 4 is in reasonable range: cone angle is excessive, will use bigger strength to promote piston ring in installation process, and piston ring and guiding taper seat 4 frictional force are big, easily worn piston ring internal diameter and guiding taper seat 4; Cone angle is too small, and then piston ring erector axial dimension is long, and installation process will consume a large amount of time.
Five, the axial length of cylinder guiding face 5 and diameter:
The axial length of cylinder guiding face 5 described in the utility model is longer than the axial length in assembling and positioning hole 7.
The diameter of appropriate design cylinder guiding face 5: diameter is excessive, and it is excessive that then amplitude is opened in gap-clearance of piston rings, piston ring generation plastic deformation; Diameter is too small, then too thin, the insufficient strength of piston ring erector cylinder guiding face wall thickness and cause distortion.
Six, the technical process of whirlpool end piston ring is installed:
Whirlpool end piston ring erector 3 usings method as shown in Figure 2.When whirlpool end piston ring 2 is installed, towards cannelure outer end 9, allow turbine spindle 1 pass cylindrical hole 6 in assembling and positioning hole 7, make assembling and positioning hole 7 aim at applying with cannelure outer end 9.Then whirlpool end piston ring 2 is worn turbine spindle 1, whirlpool end piston ring 2 is opened gradually, also finally slip in the main shaft cannelure 10 through cylinder guiding face 5 by guiding taper seat 4.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or design of the present utility model and technical scheme are directly applied to other occasion without improving, all within protection domain of the present utility model.
Claims (6)
1. the whirlpool end piston ring erector of a turbocharger, be used for whirlpool end piston ring (2) is assembled in the main shaft cannelure (10) of turbocharger, it is characterized in that: described whirlpool end piston ring erector (3) is for columnar structured, described columnar endoporus is that the main shaft axle journal (8) on cylindrical hole (6) and the turbine spindle (1) forms matched in clearance, described columnar outer surface is guiding taper seat (4), and described cylindrical hole (6) is coaxial with guiding taper seat (4).
2. according to the whirlpool end piston ring erector of the described turbocharger of claim 1, it is characterized in that: the diameter dimension of the big end of described guiding taper seat (4) is greater than the diameter dimension of cannelure outer end (9) on the turbine, and the diameter dimension of described guiding taper seat (4) small end is less than the endoporus aperture size of whirlpool end piston ring (2) under free state.
3. according to the whirlpool end piston ring erector of the described turbocharger of claim 1, it is characterized in that: the big end of tapering of described guiding taper seat (4) is provided with one section thin cylinder, its endoporus is that cannelure outer end (9) is matched in clearance on assembling and positioning hole (7) and the turbine, the outer surface of described thin cylinder is cylinder guiding face (5), and described assembling and positioning hole (7) is coaxial with cylinder guiding face (5).
4. according to the whirlpool end piston ring erector of the described turbocharger of claim 1, it is characterized in that: the axial length in described assembling and positioning hole (7) is less than the axial length of cannelure outer end (9).
5. according to the whirlpool end piston ring erector of the described turbocharger of claim 1, it is characterized in that: the cone angle of described guiding taper seat (4) is 5 °～9 °.
6. according to the whirlpool end piston ring erector of the described turbocharger of claim 1, it is characterized in that: the axial length of described cylinder guiding face (5) is greater than the axial length 2.0mm of assembling and positioning hole (7) or more than the 2.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920187182 CN201511339U (en) | 2009-08-27 | 2009-08-27 | Turbine end piston ring installer of turbo-charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920187182 CN201511339U (en) | 2009-08-27 | 2009-08-27 | Turbine end piston ring installer of turbo-charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201511339U true CN201511339U (en) | 2010-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920187182 Expired - Fee Related CN201511339U (en) | 2009-08-27 | 2009-08-27 | Turbine end piston ring installer of turbo-charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201511339U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907112A (en) * | 2010-08-19 | 2010-12-08 | 中国航空工业第六一八研究所 | Assembly method of front end sleeve and auxiliary piston and guiding cone |
| CN101907111A (en) * | 2010-08-19 | 2010-12-08 | 中国航空工业第六一八研究所 | Installation method of separation bush and main piston of dual-redundancy actuator and guide sleeve |
| CN102672661A (en) * | 2012-05-09 | 2012-09-19 | 浙江吉利汽车研究院有限公司杭州分公司 | Assistive tool for assembling clamp ring |
| CN104942755A (en) * | 2015-06-24 | 2015-09-30 | 快意（江门）压缩机有限公司 | Tool for installing piston rings on piston |
| CN107471135A (en) * | 2017-08-01 | 2017-12-15 | 合肥江淮朝柴动力有限公司 | A kind of piston ring assembling clamp |
| CN115056175A (en) * | 2022-05-31 | 2022-09-16 | 中国北方发动机研究所(天津) | Shaft penetrating type opening sealing ring assembling tool |
-
2009
- 2009-08-27 CN CN 200920187182 patent/CN201511339U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907112A (en) * | 2010-08-19 | 2010-12-08 | 中国航空工业第六一八研究所 | Assembly method of front end sleeve and auxiliary piston and guiding cone |
| CN101907111A (en) * | 2010-08-19 | 2010-12-08 | 中国航空工业第六一八研究所 | Installation method of separation bush and main piston of dual-redundancy actuator and guide sleeve |
| CN101907111B (en) * | 2010-08-19 | 2013-04-10 | 中国航空工业第六一八研究所 | Installation method of separation bush and main piston of dual-redundancy actuator and guide sleeve |
| CN102672661A (en) * | 2012-05-09 | 2012-09-19 | 浙江吉利汽车研究院有限公司杭州分公司 | Assistive tool for assembling clamp ring |
| CN102672661B (en) * | 2012-05-09 | 2015-03-18 | 浙江吉利汽车研究院有限公司杭州分公司 | Assistive tool for assembling clamp ring |
| CN104942755A (en) * | 2015-06-24 | 2015-09-30 | 快意（江门）压缩机有限公司 | Tool for installing piston rings on piston |
| CN107471135A (en) * | 2017-08-01 | 2017-12-15 | 合肥江淮朝柴动力有限公司 | A kind of piston ring assembling clamp |
| CN107471135B (en) * | 2017-08-01 | 2019-04-23 | 合肥江淮朝柴动力有限公司 | A kind of piston ring assembling clamp |
| CN115056175A (en) * | 2022-05-31 | 2022-09-16 | 中国北方发动机研究所(天津) | Shaft penetrating type opening sealing ring assembling tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20130827 |