CN109470480B - Performance testing device for floating thrust bearing of marine turbocharger - Google Patents
Performance testing device for floating thrust bearing of marine turbocharger Download PDFInfo
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- CN109470480B CN109470480B CN201811620337.7A CN201811620337A CN109470480B CN 109470480 B CN109470480 B CN 109470480B CN 201811620337 A CN201811620337 A CN 201811620337A CN 109470480 B CN109470480 B CN 109470480B
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- 238000012360 testing method Methods 0.000 title claims abstract description 42
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims 1
- 238000013461 design Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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Abstract
The invention provides a performance testing device of a floating thrust bearing of a marine turbocharger, which comprises a bearing shell, wherein a turbine shell and a turbine end sealing cover are arranged at the front end of the bearing shell, a high-pressure sealing end cover is arranged at the rear end of the bearing shell, a high-pressure oil cylinder cover and a high-pressure seal are connected to the sealing end cover, a front end bearing seat and a rear end bearing seat are arranged in the bearing shell, a front end radial bearing and a rear end radial bearing for supporting a testing spindle rotor are arranged on the front end bearing seat and the rear end bearing seat, the testing spindle rotor comprises a spindle, the floating thrust bearing is arranged at the middle position of the spindle, a hydro-extracting disc, a low-pressure seal, a front counterweight disc and a driving turbine are fixed at the front end of the spindle through a tensioning screw and a locking nut, a rear counterweight disc is fixed at the rear end of the spindle through a high-pressure end locking disc, and an annular thrust bearing is further arranged at the middle position of the spindle. The testing device solves the technical problem that the floating thrust bearing cannot be accurately tested and verified.
Description
Technical Field
The invention belongs to the technical field of ships, and particularly relates to a performance testing device for a floating thrust bearing of a marine turbocharger.
Background
The lifting of the pressurizing capacity of the high-flow pressurizer of the low-speed machine leads to the increase of aerodynamic superposition effects of a turbine and a compressor, the thrust bearing is required to bear larger load, the design of the conventional common fixed tile bearing cannot meet the requirement, and in order to meet the high-load running of the pressurizer, the novel floating thrust bearing is required to be researched and adopted, and the relative linear speed is reduced while the bearing bears huge load, so that the problems of oil film temperature rise and bearing capacity reduction caused by the increase of the linear speed of a shaft neck are reduced, and the reliability of the bearing is improved. At present, the domestic high linear speed and heavy load turbocharger does not adopt the structure form of a floating thrust bearing, and the bearing characteristics and reliability of the structure form of the bearing used for bearing the high thrust brand new structure directly determine the service life of the turbocharger. In order to ensure the test accuracy and the conformity of the bearing test in the floating thrust test, the special testing device for the floating thrust bearing of the marine turbocharger is designed, and the key point for solving the problems is that.
Disclosure of Invention
In view of the above problems, the invention aims to provide a performance testing device for a floating thrust bearing of a marine turbocharger, so as to solve the technical problem that the development of a novel axial-flow turbocharger thrust bearing lacks a professional verification means and seriously affects the autonomous design of the floating thrust bearing.
The invention provides a performance testing device for a floating thrust bearing of a marine turbocharger, which comprises a bearing shell, wherein a turbine shell and a turbine end sealing cover are arranged at the front end of the bearing shell, a turbine air machine chamber is formed by the three components, a high-pressure sealing end cover is arranged at the rear end of the bearing shell, a high-pressure oil cylinder cover and high-pressure sealing are connected to the sealing end cover, a front end bearing seat and a rear end bearing seat are arranged in the bearing shell, an oil supply oil way for forming the floating thrust bearing, the front end radial bearing and the rear end radial bearing is formed, the front end bearing seat and the rear end bearing seat are provided with a front end radial bearing and a rear end radial bearing for supporting a testing spindle rotor, the testing spindle rotor comprises a spindle, the floating thrust bearing is arranged in the middle of the spindle, an oil throwing disc, a low-pressure sealing disc, a front weight disc and a driving turbine are fixed at the front end of the spindle through a tensioning screw and a locking nut, the rear weight disc is in spline fit with the spindle, the high-pressure locking disc is in spline fit with the high-pressure sealing end cover, the high-pressure oil cylinder cover, the high-pressure sealing cover and the high-pressure sealing cover is arranged in the middle of the spindle, and the high-pressure sealing cover is also in the annular fit with the spindle.
In addition, it is preferable that three temperature sensors are arranged in the circumferential direction on the end surface of the front end bearing housing that cooperates with the floating thrust bearing.
In addition, the high-pressure oil inlet and the oil pressure detection hole are preferably formed in the high-pressure oil cylinder head.
Furthermore, it is preferable that two short displacement sensors are arranged in the same diameter direction on the end face of the front end bearing housing that cooperates with the floating thrust bearing, and two long displacement sensors are arranged in the other diameter direction.
In addition, it is preferable that rotation speed sensors are disposed at positions of the bearing housing corresponding to the floating thrust bearing and the rear weight plate, respectively.
Furthermore, it is preferable that three force sensors are arranged between the front bearing block and the load block in the circumferential direction.
Furthermore, the preferable structure is that the driving turbine consists of a turbine shell, a nozzle ring, a turbine and a turbine end sealing cover, and the compressed hot air mode is adopted to perform expansion work to drive the testing spindle rotor.
Compared with the prior art, the performance testing device for the floating thrust bearing of the marine turbocharger can finish the accurate test of the performance of the floating thrust bearing of the turbocharger, solves the technical problem that the floating thrust bearing cannot be accurately tested and verified, and guides the structural design of the floating thrust bearing of the turbocharger in higher efficiency and bearing capacity. Meanwhile, the testing device has the advantages of ingenious design, convenience in installation and high testing precision, and the testing system has the advantages of being good in control, full in function and easy to operate.
Drawings
Other objects and results of the present invention will become more apparent and readily appreciated by reference to the following description and claims in conjunction with the accompanying drawings and a more complete understanding of the invention. In the drawings:
FIG. 1 is a schematic structural view of a performance testing apparatus for a floating thrust bearing of a marine turbocharger according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of distribution positions of a displacement sensor, a temperature sensor and a rotation speed sensor according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of distribution positions of pressure sensors according to an embodiment of the present invention.
Wherein reference numerals include: 1-turbine shell, 2-nozzle ring, 3-turbine seal cover, 4-load block, 6-front end bearing seat, 7-rear end bearing seat, 8-bearing shell, 9-high pressure seal cover, 10-high pressure seal, 11-high pressure oil cylinder cover, 12-high pressure end locking disk, 13-rear weight disk, 14 rear end radial bearing, 15-spindle, 16-annular thrust bearing, 17-floating thrust bearing, 18-front end radial bearing, 19-oil thrower, 20-low pressure seal, 21-front weight disk, 22-turbine, 23-tension bolt, 24-vortex end locking nut, 25-temperature sensor, 26-long displacement sensor, 27-short position sensor, 28-rotation speed sensor, 29-force sensor.
The same reference numerals will be used throughout the drawings to refer to similar or corresponding features or functions.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 3, a performance test device for a floating thrust bearing of a marine turbocharger according to an embodiment of the present invention includes: the turbine shell 1 and the turbine end sealing cover 3 are arranged at the front end of the bearing shell 8, and the turbine shell 1, the turbine end sealing cover 3 and the bearing shell 8 jointly form a turbine gas machine chamber; the rear end of the bearing shell 8 is provided with a high-pressure sealing end cover 9, the sealing end cover 9 is connected with a high-pressure oil cylinder cover 11 and a high-pressure seal 10, and the high-pressure oil cylinder and a high-pressure end locking disc 12 form a high-pressure sealing oil cylinder; the front end bearing seat 6 and the rear end bearing seat 7 are installed in the bearing shell 8 to form oil supply paths of a floating thrust bearing 17, a front end radial bearing 18 and a rear end radial bearing 14, and the front end bearing seat 6 and the rear end bearing seat 7 are respectively provided with the front end radial bearing 18 and the rear end radial bearing 14 for supporting a test spindle rotor.
The testing spindle rotor comprises a spindle 15, an oil thrower 19, a low-pressure seal 20, a front counterweight disc 21 and a driving turbine 22 are fixed at the front end of the spindle 15 through a tensioning screw 23 and a locking nut 24, the front counterweight disc 21 is in torque transmission through a three-edged hole shaft structure, and the rest parts are tested through friction torque transmission rotation; the rear counterweight plate 13 is fixed at the rear end of the main shaft 15 through the high-pressure end locking plate 12, and the rear counterweight plate 13 and the main shaft 15 rotate together through spline torque transmission; in the middle of the main shaft 15 there are arranged a floating thrust bearing 17 and an annular thrust bearing 16, wherein the annular thrust bearing 16 rotates with the main shaft 15 by means of an interference fit of the bore shaft.
In order to be convenient for realizing the simulation of the working stress state of a thrust bearing of a certain type of supercharger, preferably, the test main shaft rotor adopts a turbine to drive the whole rotor, and adopts a counterweight disc mode to ensure that the mass, the mass center position and the rotational inertia of the whole rotor are the same as those of the certain type of rotor, and meanwhile, the supporting position of the rotor is also the same as that of the supercharger.
In order to provide the rotating speed for the whole testing spindle rotor, the driving turbine is preferably composed of a turbine shell 1, a nozzle ring 2, a turbine 22 and a vortex end sealing cover 3, and compressed hot air is adopted to perform expansion work to drive the whole testing spindle rotor.
In order to facilitate the loading of the axial thrust of the floating thrust bearing 17, preferably, the high-pressure sealing cylinder consists of a high-pressure oil cylinder cover 11, a high-pressure seal 10, a high-pressure end locking disc 12 and a high-pressure sealing cover 9, and a high-pressure oil inlet and an oil pressure detection hole are arranged on the high-pressure oil cylinder cover 11.
In order to facilitate the testing of the oil film temperature distribution in the radial direction of the floating thrust bearing 17, it is preferable that three temperature sensors are arranged in the circumferential direction on the end surface of the front end bearing housing 5 that cooperates with the floating thrust bearing 17, and the temperature change thereof is tested.
In order to facilitate the testing of the oil film temperature thickness in the axial direction of the floating thrust bearing 17, preferably, two long displacement sensors 26 are arranged on the end surface of the front end bearing seat 5, which is matched with the floating thrust bearing 17, along the same diameter direction for testing the average oil film position of the floating thrust bearing and the front end bearing seat, and two short displacement sensors 27 are arranged on the end surface of the front end bearing seat 5, which is matched with the floating thrust bearing 17, along the other diameter direction for testing the oil film position of the annular thrust bearing 17 and the front end bearing seat 5.
In order to facilitate the test of the rotational speed of the floating thrust bearing 17 and the rotational speed of the main shaft 15, it is preferable that rotational speed sensors 28 are arranged at positions of the bearing housing 8 corresponding to the floating thrust bearing 17 and the rear weight plate 13, respectively.
In order to facilitate the display of the thrust parameters axially borne by the floating thrust bearing 17, preferably, three force sensors 29 are arranged between the front bearing block 5 and the load block 4 along the circumferential direction for displaying the axial thrust loading the floating thrust bearing 17; the front end bearing housing 5 is movable in the axial direction of the bearing housing 8.
The foregoing is merely illustrative embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present invention, and the invention should be covered. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a marine turbocharger floating thrust bearing's capability test device, its characterized in that includes the bearing shell the turbine shell and the sealed lid of vortex end are installed to the front end of bearing shell, and the three forms turbine engine room jointly the rear end of bearing shell installs high-pressure seal end cover be connected with high-pressure oil cylinder cover and high-pressure seal on the sealed end cover the internally mounted of bearing shell has front end bearing frame and rear end bearing frame, forms floating thrust bearing and front end radial bearing, rear end radial bearing's fuel feeding oil circuit be provided with on the front end bearing frame with be used for supporting testing spindle rotor's front end radial bearing and rear end radial bearing on the rear end bearing frame, testing spindle rotor includes the main shaft, floating thrust bearing arranges the intermediate position of main shaft, through tensioning screw rod and lock nut with hydro-extracting disc, low pressure seal, front end disc and drive turbine are fixed the front end of main shaft, through high-pressure end locking disc with the rear weight disc is fixed the rear end of main shaft, rear weight disc is the cooperation with the main shaft, high-pressure locking disc is high-pressure seal the high-pressure seal oil cylinder, high-pressure seal cylinder cover is arranged with the high-pressure seal cylinder cover has the main shaft spline.
2. The performance testing device for a floating thrust bearing of a marine turbocharger according to claim 1, wherein three temperature sensors are arranged in a circumferential direction on an end face of the front end bearing housing that mates with the floating thrust bearing.
3. The performance testing device for a floating thrust bearing of a marine turbocharger according to claim 1, wherein a high-pressure oil inlet and an oil pressure detection hole are formed in the high-pressure oil cylinder cover.
4. The performance testing device of a floating thrust bearing for a marine turbocharger according to claim 1, wherein two short displacement sensors are arranged on the end face of the front end bearing seat, which is matched with the floating thrust bearing, in the same diameter direction, and two long displacement sensors are arranged on the other diameter direction.
5. The performance testing apparatus of a floating thrust bearing for a marine turbocharger according to claim 1, wherein rotational speed sensors are arranged at positions of the bearing housing corresponding to the floating thrust bearing and the rear weight plate, respectively.
6. The performance testing device of a floating thrust bearing for a marine turbocharger according to claim 1, wherein three force sensors are arranged in a circumferential direction between the front end bearing housing and the load block.
7. The device for testing the performance of the floating thrust bearing of the marine turbocharger according to claim 1, wherein the driving turbine consists of a turbine shell, a nozzle ring, a turbine and a turbine end sealing cover, and the compressed hot air is adopted to perform expansion work to drive the testing spindle rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811620337.7A CN109470480B (en) | 2018-12-28 | 2018-12-28 | Performance testing device for floating thrust bearing of marine turbocharger |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811620337.7A CN109470480B (en) | 2018-12-28 | 2018-12-28 | Performance testing device for floating thrust bearing of marine turbocharger |
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| CN109470480A CN109470480A (en) | 2019-03-15 |
| CN109470480B true CN109470480B (en) | 2024-03-26 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639996B (en) * | 2021-08-10 | 2024-06-07 | 中国科学院合肥物质科学研究院 | High-pressure gas driving dynamic pressure gas bearing performance test structure |
| CN113739979B (en) * | 2021-09-09 | 2024-05-14 | 瑞庆汽车发动机技术有限公司 | Turbocharger shaft lock nut dynamic moment detection device and method |
| CN114112393B (en) * | 2021-11-25 | 2024-05-31 | 重庆江增船舶重工有限公司 | Full-floating thrust bearing test bed control system |
| CN114577476B (en) * | 2022-03-08 | 2024-04-09 | 重庆江增船舶重工有限公司 | Sensor mounting system and mounting method thereof |
| CN117189791B (en) * | 2023-11-07 | 2024-01-23 | 成都中科翼能科技有限公司 | Power turbine bearing casing assembly with sensor |
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| CN208060155U (en) * | 2018-04-25 | 2018-11-06 | 中国科学院合肥物质科学研究院 | A kind of Aerostatic thrust bearing high speed performance test system |
| CN209102380U (en) * | 2018-12-28 | 2019-07-12 | 重庆江增船舶重工有限公司 | The performance testing device of marine turbosupercharger floating thrust bearing |
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2018
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001012460A (en) * | 1999-07-02 | 2001-01-16 | Nippon Soken Inc | Bearing device for turbocharger |
| CA2371470A1 (en) * | 2001-04-24 | 2002-10-24 | General Motors Corporation | High thrust turbocharger rotor with ball bearings |
| CN101975656A (en) * | 2010-09-06 | 2011-02-16 | 西安交通大学 | Experimental device for testing dynamic performance of simulated rotor of miniature gas turbine |
| CN106481373A (en) * | 2016-12-08 | 2017-03-08 | 湖南天雁机械有限责任公司 | Turbocharger rotor bearing arrangement using thrust slip combination bearing |
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| CN209102380U (en) * | 2018-12-28 | 2019-07-12 | 重庆江增船舶重工有限公司 | The performance testing device of marine turbosupercharger floating thrust bearing |
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