CN109357798B - Turbocharger axial force test structure - Google Patents
Turbocharger axial force test structure Download PDFInfo
- Publication number
- CN109357798B CN109357798B CN201811280902.XA CN201811280902A CN109357798B CN 109357798 B CN109357798 B CN 109357798B CN 201811280902 A CN201811280902 A CN 201811280902A CN 109357798 B CN109357798 B CN 109357798B
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- China
- Prior art keywords
- chuck
- turbocharger
- fan
- axial force
- bearing body
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- 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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0009—Force sensors associated with a bearing
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
- F16C17/24—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0061—Force sensors associated with industrial machines or actuators
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/12—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring axial thrust in a rotary shaft, e.g. of propulsion plants
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Analytical Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Supercharger (AREA)
- Testing Of Balance (AREA)
Abstract
The invention provides an axial force testing structure of a turbocharger, which is characterized in that local structures of parts such as a bearing body of a general turbocharger, a thrust bearing, a back plate of a compressor and the like are improved, a chuck is additionally arranged, the thrust bearing adopts independent oil supply, the thrust bearing is supported on a plurality of force sensors through the chuck, and the axial force of the turbocharger is measured through the force sensors. The method can directly measure the axial force of the turbocharger, and has high reliability and good repeatability.
Description
Technical Field
The invention belongs to the technical field of turbochargers, and particularly relates to a turbocharger axial force testing structure.
Background
The stability and reliability of a thrust bearing system as a major component of a turbocharger is critical to the supercharger and thus the engine. Thrust bearings are the only part that carries the axial load and require an accurate axial load spectrum to guide their design. The resultant force of the supercharger compressor aerodynamic force and the turbine aerodynamic force generates the axial load of the supercharger. The matching of aerodynamic forces at two ends is unbalanced, and the sudden change of the operation condition easily causes the fault of a supercharger shaft system, the axial load of the supercharger is mastered, the pneumatic matching rule of a compressor and a turbine is better facilitated to be cleaned, the design of an impeller and the turbine is optimized, the axial force is facilitated to be balanced, and the reliability of the whole machine is improved. Accurate steady-state and dynamic axial loads are difficult to obtain by theoretical methods, which requires the study of accurate and effective measurement methods.
At present, due to the limitation of compactness of a supercharger structure and the particularity of working conditions, the axial force of the turbocharger is measured by a method of indirectly measuring the axial force of the turbocharger by sticking strain flowers on a thrust bearing, and the method has the problems of poor repeatability and low reliability, so that the method for directly measuring the axial force of the supercharger by using a force measuring sensor is urgently needed to be developed.
Disclosure of Invention
In view of this, the present invention provides an axial force testing structure for a turbocharger, so as to solve the problem of poor repeatability and low reliability of axial force measurement of the turbocharger.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an axial force test structure of a turbocharger comprises a bearing body, a thrust bearing, a force sensor, a compressor back plate and a chuck, wherein the chuck comprises a proper disc structure and a broken line plate structure extending outwards from two sides; the thrust bearing is fixed at the center of the disc structure of the chuck, the compressor back plate is fixedly arranged on the bearing body, the force sensor is arranged on the compressor back plate, and the broken line plate structure of the chuck is fixed on the force sensor through bolts; a first gap is reserved between the chuck and the bearing body in the axial direction of the turbocharger, and a second gap is reserved between the chuck and the compressor back plate in the axial direction of the turbocharger.
Furthermore, footstep bearing adopts independent fuel feeding mode, is provided with the inlet port on the chuck, and the last one side that is close to the chuck of footstep bearing is equipped with curved oil feed tank, inlet port and oil feed tank intercommunication.
Furthermore, a plurality of fan-shaped supporting tables are uniformly distributed on the end face of one side, close to the chuck, of the bearing body in the circumferential direction, and the compressor back plate is fixedly arranged on the fan-shaped supporting tables on the bearing body; the disc structure of the chuck is provided with fan-shaped holes corresponding to the fan-shaped supporting platform, and the fan-shaped holes are larger than the fan-shaped supporting platform on the bearing body.
Compared with the prior art, the invention has the following advantages:
according to the axial force measuring structure of the supercharger, the thrust bearings are supported on the force sensors through the chucks, the axial force of the turbocharger is measured through the force sensors, the accurate axial force can be directly obtained, the design of the thrust bearings and the matching of the impellers of the supercharger are realized, and the axial force measuring structure has a good guiding significance for improving the mechanical efficiency of the supercharger.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of an overall structure of a turbocharger axial force test structure according to an embodiment of the invention;
fig. 2 is a sectional view taken along the plane a-a of fig. 1.
Fig. 3 is a schematic structural diagram of a bearing body according to an embodiment of the present invention.
FIG. 4 is a schematic diagram of a chuck assembly according to an embodiment of the present invention.
FIG. 5 is a schematic view of a thrust bearing according to an embodiment of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The design idea of the invention is as follows: through the local structural improvement to spare parts such as general turbo charger's bearing body 1, footstep bearing 2, compressor backplate 5, add chuck 6 simultaneously, indirectly support footstep bearing 2 on a plurality of force sensor 4 through chuck 6, simultaneously, the required lubricating oil of footstep bearing 2 is independently supplied with, realizes transmitting the axial force that footstep bearing 2 bore for force sensor 4 with not having the reservation all, measures turbo charger's axial force through force sensor 4.
The invention discloses a turbocharger axial force testing structure, as shown in figures 1 to 5, comprising a bearing body 1, a thrust bearing 2, a force sensor 4, a compressor back plate 5 and a chuck 6,
as shown in fig. 4, the chuck 6 comprises a disk structure and a broken line plate structure extending outwards from two sides, and the thrust bearing 2 is fixed at the center of the disk structure of the chuck 6 through a screw 10; 4 fan-shaped supporting tables 1a are uniformly distributed on the end face of one side, close to the chuck, of the bearing body 1 in the circumferential direction, and the compressor back plate 5 is fixedly installed on the fan-shaped supporting tables 1a on the bearing body 1; a fan-shaped hole 6c is formed in the disc structure of the chuck 6 and corresponds to the fan-shaped support table 1a of the bearing body 1, and the fan-shaped hole 6c is larger than the fan-shaped support table 1a of the bearing body 1 so as to ensure that the chuck 6 can freely move in the axial direction of the turbocharger; the force sensor 4 is arranged on the compressor back plate 5 through a self-carrying screw on the force sensor 4, and the chuck 6 is supported on the force sensor 4 through a through hole 6b on a broken line plate structure and a bolt 3.
The lubricating oil required by the thrust bearing 2 is independently supplied, the thrust bearing 2 adopts an independent oil supply mode, an oil inlet hole 6a is formed in the chuck 6, as shown in fig. 5, an arc-shaped oil inlet groove 2a is formed in the thrust bearing 2, the oil inlet groove 2a is formed in one side close to the chuck 6, the oil inlet hole 6a is communicated with the oil inlet groove 2a of the thrust bearing 2, and the lubricating oil of the thrust bearing 2 is supplied through an oil hole 6a formed in the chuck 6; the oil hole 1b on the bearing body 1 is blocked by a process block 9.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (3)
1. The utility model provides a turbo charger axial force test structure which characterized in that: the device comprises a bearing body, a thrust bearing, a force sensor, a compressor back plate and a chuck, wherein the chuck comprises a disc structure and a broken line plate structure with two sides extending outwards;
the thrust bearing is fixed at the center of the disc structure of the chuck, the compressor back plate is fixedly arranged on the bearing body, the force sensor is arranged on the compressor back plate, and the broken line plate structure of the chuck is fixed on the force sensor through bolts;
a first gap is reserved between the chuck and the bearing body in the axial direction of the turbocharger, and a second gap is reserved between the chuck and the compressor back plate in the axial direction of the turbocharger.
2. The turbocharger axial force test structure according to claim 1, wherein: the thrust bearing adopts an independent oil supply mode, an oil inlet hole is formed in the chuck, an arc-shaped oil inlet groove is formed in one side, close to the chuck, of the thrust bearing, and the oil inlet hole is communicated with the oil inlet groove.
3. The turbocharger axial force test structure according to claim 1, wherein: a plurality of fan-shaped supporting tables are uniformly distributed on the end face of one side, close to the chuck, of the bearing body in the circumferential direction, and the compressor back plate is fixedly arranged on the fan-shaped supporting tables on the bearing body; the disc structure of the chuck is provided with fan-shaped holes corresponding to the fan-shaped supporting platform, and the fan-shaped holes are larger than the fan-shaped supporting platform on the bearing body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811280902.XA CN109357798B (en) | 2018-10-30 | 2018-10-30 | Turbocharger axial force test structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811280902.XA CN109357798B (en) | 2018-10-30 | 2018-10-30 | Turbocharger axial force test structure |
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| Publication Number | Publication Date |
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| CN109357798A CN109357798A (en) | 2019-02-19 |
| CN109357798B true CN109357798B (en) | 2021-01-15 |
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| CN201811280902.XA Active CN109357798B (en) | 2018-10-30 | 2018-10-30 | Turbocharger axial force test structure |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724726B (en) * | 2019-02-20 | 2024-03-29 | 凤城市时代龙增压器制造有限公司 | Turbocharger axial force testing system and testing method |
| CN110500175B (en) * | 2019-08-07 | 2020-09-08 | 中国北方发动机研究所(天津) | Supercharger device for measuring axial force of turbocharger, coupling and measuring method |
| CN110542501B (en) * | 2019-08-15 | 2021-02-12 | 北京空间飞行器总体设计部 | Ball screw transmission efficiency test system |
| CN110849622B (en) * | 2019-10-14 | 2021-07-16 | 中国北方发动机研究所(天津) | Turbocharger thrust bearing performance testing device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6360616B1 (en) * | 2000-10-13 | 2002-03-26 | Donald R. Halliday | Automated diagnosis and monitoring system, equipment, and method |
| CN101666696B (en) * | 2009-09-16 | 2011-02-09 | 吉林大学 | Axial force testing device of high-power speed-adjusting type hydraulic clutch and testing method |
| CN103884504B (en) * | 2014-03-10 | 2016-06-29 | 西安交通大学 | A kind of aerodynamic compliant foil thrust bearings is by axial force testing structure |
| KR20160063032A (en) * | 2014-11-26 | 2016-06-03 | 현대위아 주식회사 | Measuring apparatus for thrust bearing of turbocharger |
| CN204666292U (en) * | 2015-05-18 | 2015-09-23 | 江苏大学 | A kind of shielding force at direction of pump spindle real-time test device |
| CN106248278B (en) * | 2016-07-25 | 2019-01-15 | 宁波威孚天力增压技术有限公司 | A kind of turbocharger axial direction force measuring system and its test method |
| CN108168851B (en) * | 2017-11-22 | 2020-06-30 | 中国北方发动机研究所(天津) | Axial load testing device and method for turbocharger |
| CN108534940B (en) * | 2018-05-14 | 2020-06-19 | 西安交通大学 | Device and method for measuring axial force of rotor of double-screw compressor |
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