CN213068195U - Ship-borne main shaft bearing impact test equipment - Google Patents
Ship-borne main shaft bearing impact test equipment Download PDFInfo
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- CN213068195U CN213068195U CN202021557874.4U CN202021557874U CN213068195U CN 213068195 U CN213068195 U CN 213068195U CN 202021557874 U CN202021557874 U CN 202021557874U CN 213068195 U CN213068195 U CN 213068195U
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Abstract
The utility model belongs to the technical field of aircraft engine test equipment, and discloses a ship-borne main shaft bearing impact test equipment, which comprises a power driving system, a test platform, a hydraulic loading system, a lubricating system and a measurement and control system; a box body base for mounting a main shaft to be tested and a main shaft bearing is arranged on the test platform, and a power driving system is arranged on one axial side of the main shaft to be tested; the hydraulic loading system comprises a radial hydraulic loading assembly and an axial hydraulic loading assembly, the axial hydraulic loading assembly is arranged on the other axial side of the main shaft to be tested, and the radial hydraulic loading assembly is arranged in the radial direction of the main shaft to be tested; the lubricating system is connected with all the bearings; the measurement and control system is connected with the test platform, the power driving system, the hydraulic loading system and the lubricating system. The test equipment can complete the service life assessment test of the carrier-based main shaft bearing with large impact and overload.
Description
Technical Field
The utility model belongs to the technical field of aeroengine test equipment, a main shaft bearing shock resistance's test equipment is related to, concretely relates to carrier-borne main shaft bearing impact test equipment.
Background
The aircraft engine is the "heart" of aircraft, and the main shaft bearing is as the transmission part of aircraft engine power device, for rotary part transmission motion in actual operation, and its life directly influences engine safe reliability.
With the development of science and technology, the aviation engine industry takes the requirements of high rotating speed, large thrust-weight ratio, long service life, high reliability and the like as the development direction of the engine field. In order to meet the development requirements of the engine technology which is continuously improved, the severe working conditions such as variable load, high temperature and the like born by the main shaft bearing frequently occur under the high-speed operation condition, and the service life of the main shaft bearing is seriously influenced. In recent years, with the rapid development of domestic products, carrier-based airplanes are important equipment for improving the fighting capacity of domestic aircraft carriers and are important force for realizing the air control right. In the actual service process of the carrier-based aircraft, the carrier-based aircraft is subjected to severe working conditions such as catapult takeoff of the aircraft or arresting landing of the aircraft, and the like, and the main bearing of the engine bears axial and radial impact overload in the process, so that the working performance of the main bearing is greatly influenced. Along with the continuous improvement of the performance requirements of the ship-based engine and the more rigorous working environment compared with the prior art, the working performance requirements of the main bearing of the weak link of the aircraft engine are higher and higher.
The main shaft bearing is used as an important component in an aircraft engine transmission system, and the main shaft bearing is tested under the working conditions of high DN value, high temperature, large overload and the like under the harsh operating condition of a modern aircraft engine. Once a main shaft bearing fails, the transmission precision is reduced, the vibration is intensified, even the main shaft is seized, and safety accidents can be caused. Because the bearing fault relates to the crossing of multiple disciplines such as kinematic mechanics, materials, lubrication and the like, the existing kinematic, dynamic theory and simulation analysis are difficult to effectively predict the bearing, so the bearing service life cannot be accurately calculated only through theoretical analysis and simulation research, and the failure mechanism cannot be discussed, so that the bearing service life test technical research is very necessary. At present, the research on the large overload life test technology of the national research institutes has not made a breakthrough, and the ship-borne bearing impact test equipment is developed to reduce the technical risk and the research requirement, so that the research maturity of the large overload life test technology is improved.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a carrier-borne main shaft bearing impact test equipment is as the technological platform of the anti big overloaded relevant experimental research of system research main shaft bearing.
The technical scheme of the utility model as follows:
a ship-borne main shaft bearing impact test device comprises a power driving system, a test platform, a hydraulic loading system, a lubricating system and a measurement and control system; a box body base for mounting a main shaft to be tested and a main shaft bearing is arranged on the test platform, and a power driving system is arranged on one axial side of the main shaft to be tested; the hydraulic loading system comprises a radial hydraulic loading assembly and an axial hydraulic loading assembly, the axial hydraulic loading assembly is arranged on the other axial side of the main shaft to be tested, and the radial hydraulic loading assembly is arranged in the radial direction of the main shaft to be tested; the lubricating system is connected with all the bearings; the measurement and control system is connected with the test platform, the power driving system, the hydraulic loading system and the lubricating system.
Furthermore, the main shaft bearing of the main shaft to be tested comprises a left fulcrum test bearing and a right fulcrum test bearing, the box body base is provided with three bases, and the three bases are respectively supported on the left fulcrum test bearing of the main shaft to be tested and the right fulcrum test bearing of the main shaft to be tested and are supported on the middle section of the main shaft to be tested through the loading bearing.
Furthermore, the box base further comprises a box upper cover, the box upper cover is arranged right above the main shaft to be tested, and the radial hydraulic loading assembly is arranged on the box upper cover and vertically connected with the loading bearing downwards.
Furthermore, the hydraulic loading device further comprises a hydraulic cylinder seat, wherein the hydraulic cylinder seat is arranged on the test platform and is connected with the radial hydraulic loading assembly and the axial hydraulic loading assembly.
Further, the power driving system comprises a motor and a speed increaser; the lubricating system comprises a hydraulic loading system, a loading bearing lubricating system, a test bearing lubricating system and a speed increaser lubricating system; the hydraulic loading system is connected with the hydraulic loading assembly and the axial hydraulic loading assembly through the measurement and control system, the loading bearing lubricating system is connected with the loading bearing through the measurement and control system, the test bearing lubricating system is connected with the left fulcrum test bearing and the right fulcrum test bearing through the measurement and control system, the speed increaser lubricating system is connected with the speed increaser through the measurement and control system, and the measurement and control system is connected with the motor.
Furthermore, the measurement and control system comprises a data acquisition system, a control system and a monitoring system.
The utility model has the advantages that: the test equipment can be used for the examination of a bearing test with the highest rotating speed of the main shaft of 24000 r/min; the hydraulic loading system adopts servo hydraulic loading, load closed-loop control is formed by matching a servo hydraulic valve, a pressure sensor and a computer, static loading capacity of radial loading of 30KN and axial loading of 50KN can be realized, 30KN impact loading load can be completed within 0.2s, the impact load control precision can reach +/-5% F.S, and the test equipment can complete a ship-borne main shaft bearing impact large overload service life assessment test.
Drawings
FIG. 1 is a schematic structural view of the present invention;
the test device comprises a motor 1, a speed increaser 2, a main shaft 3, a left fulcrum test bearing 4, a box upper cover 5, a radial hydraulic loading assembly 6, a loading bearing 7, a right fulcrum test bearing 8, an axial hydraulic loading assembly 9, a hydraulic cylinder seat 10, a box base 11, a test platform 12, a hydraulic loading system 13, a loading bearing lubricating system 14, a test bearing lubricating system 15, a speed increaser lubricating system 16, a data acquisition system 17, a control system 18 and a monitoring system 19.
Detailed Description
This section is an embodiment of the present invention for explaining and explaining the technical solution of the present invention.
The utility model relates to a ship-borne main shaft bearing impact test device, which comprises a power driving system, a test platform 12, a hydraulic loading system, a lubricating system and a measurement and control system; a box body base 11 for mounting the main shaft 3 to be tested and the main shaft bearing is arranged on the test platform 12, and a power driving system is arranged on one axial side of the main shaft 3 to be tested; the hydraulic loading system comprises a radial hydraulic loading component 6 and an axial hydraulic loading component 9, the axial hydraulic loading component 9 is arranged on the other axial side of the spindle 3 to be tested, and the radial hydraulic loading component 6 is arranged on the spindle 3 to be tested in the radial direction; the lubricating system is connected with all the bearings; the measurement and control system is connected with the test platform 12, the power driving system, the hydraulic loading system and the lubricating system.
The main shaft bearing of the main shaft 3 to be tested comprises a left fulcrum test bearing 4 and a right fulcrum test bearing 8, the box body base 11 is provided with three bases, and the three bases are respectively supported on the left fulcrum test bearing 4 of the main shaft 3 to be tested and the right fulcrum test bearing 8 of the main shaft 3 to be tested and are supported in the middle section of the main shaft 3 to be tested through the loading bearing 7.
The box base 11 further comprises a box upper cover 5, the box upper cover 5 is arranged right above the main shaft 3 to be measured, and the radial hydraulic loading assembly 6 is installed on the box upper cover 5 and vertically connected with the loading bearing 7 downwards.
The utility model discloses an experimental facilities still includes hydraulic cylinder seat 10, and hydraulic cylinder seat 10 is established on test platform 12 to connect radial hydraulic pressure loading subassembly 6 and axial hydraulic pressure loading subassembly 9.
The power driving system comprises a motor 1 and a speed increaser 2; the lubricating system comprises a hydraulic loading system 13, a loading bearing lubricating system 14, a test bearing lubricating system 15 and a speed increaser lubricating system 16; the hydraulic loading system 13 is connected with the hydraulic loading assembly 6 and the axial hydraulic loading assembly 9 through a measurement and control system, the loading bearing lubricating system 14 is connected with the loading bearing 7 through the measurement and control system, the test bearing lubricating system 15 is connected with the left fulcrum test bearing 4 and the right fulcrum test bearing 8 through the measurement and control system, the speed increaser lubricating system 16 is connected with the speed increaser 2 through the measurement and control system, and the measurement and control system is connected with the motor.
The measurement and control system comprises a data acquisition system 17, a control system 18 and a monitoring system 19.
Another embodiment of the present invention is described below with reference to the drawings.
As shown in the overall structural schematic diagram of a tester shown in FIG. 1, the ship-borne main shaft bearing impact test equipment mainly comprises a motor 1, a speed increaser 2, a main shaft 3, a left fulcrum test bearing 4, a radial hydraulic loading assembly 6, a loading bearing 7, a right fulcrum test bearing 8, an axial hydraulic loading assembly 9, a hydraulic cylinder seat 10, a box body base 11, a test platform 12, a hydraulic loading system 13, a loading bearing lubricating system 14, a test bearing lubricating system 15, a speed increaser lubricating system 16, a data acquisition system 17, a control system 1 and the like
The ship-based impact loading test equipment realizes the rotation speed adjustment of the motor 1 through the control of the frequency converter, the motor drives the speed increaser 2, and the speed increaser drives the main shaft 3 to rotate after being accelerated, so that the test rotation speed requirement of the test bearing is met; the loading bearing 7 (cylindrical roller bearing) is arranged in the middle of the main shaft 3, and the radial loading is carried out on the loading bearing 7 through the radial hydraulic loading assembly 6, so that the radial loading of the test bearings at the supporting points at the two ends is completed; an axial hydraulic loading assembly 9 is arranged at the right fulcrum of the test shafting, axial load is directly applied to the outer ring of the right fulcrum test bearing 8 and is transmitted to the left fulcrum test bearing 4 through the rolling body, the inner ring and the main shaft, so that the two test bearings are axially loaded, the axial loading device can realize two loading modes of static loading and impact loading, an instruction is sent to a hydraulic loading system 13 through a control system 18, and the hydraulic loading system 13 adjusts the size of a valve core of a servo hydraulic valve according to an input signal so as to adjust the oil pressure of a hydraulic cylinder; when the pressure of a hydraulic cylinder in the hydraulic loading system 13 is overlarge, a pressure sensor in the data acquisition system 17 feeds back a signal to the control system, the difference value of the feedback signal and the input signal is compared and acted on PID, an input instruction is changed, a proportional valve in the hydraulic system 13 automatically controls the adjustment amount, closed-loop control of loads among a proportional pressure reducing valve, the pressure sensor and a computer is formed, the test requirement on axial impact loading of a test bearing is guaranteed, and therefore the working condition of large impact overload of an engine main bearing is simulated; the working temperature of the main bearing of the engine is guaranteed by heating lubricating oil, the lubricating system 15 of the test bearing at two branch points simulates the lubricating condition of the main bearing on the engine, and meanwhile, the lubricating system 15 of the test bearing can cool the lubricating oil of the test bearing, so that the normal operation of the test is guaranteed; in the test operation process, the recording and processing of test parameters such as the main shaft rotating speed, the axial load, the radial load, the lubricating oil temperature, the test bearing temperature and the like are completed by the data acquisition system 17, and meanwhile, the parameter change is fed back to the measurement and control system 18 to adjust the test working condition parameters, so that the test and assessment requirements are met.
The test equipment has the following characteristics:
1. the loading system of the test equipment adopts the servo valve for hydraulic loading for the first time, and the servo valve, the pressure sensor and the computer can form closed-loop control of load, so that the dynamic characteristic is good, and the hysteresis and the linear error are small.
2. The test equipment can complete 30KN axial impact loading within 0.2s, can truly simulate actual working condition conditions, and can realize consistency with the actual working condition of the engine.
3. The lubricating oil system of the test equipment can monitor the change of metal particles of the oil return pipeline in real time in the impact loading test process.
Claims (6)
1. A ship-borne main shaft bearing impact test device is characterized by comprising a power driving system, a test platform (12), a hydraulic loading system, a lubricating system and a measurement and control system; a box body base (11) for mounting a main shaft (3) to be tested and a main shaft bearing is arranged on the test platform (12), and a power driving system is arranged on one axial side of the main shaft (3) to be tested; the hydraulic loading system comprises a radial hydraulic loading assembly (6) and an axial hydraulic loading assembly (9), the axial hydraulic loading assembly (9) is arranged on the other axial side of the main shaft (3) to be tested, and the radial hydraulic loading assembly (6) is arranged in the radial direction of the main shaft (3) to be tested; the lubricating system is connected with all the bearings; the measurement and control system is connected with the test platform (12), the power driving system, the hydraulic loading system and the lubricating system.
2. The carrier-based main shaft bearing impact test equipment according to claim 1, wherein the main shaft bearing of the main shaft (3) to be tested comprises a left fulcrum test bearing (4) and a right fulcrum test bearing (8), the box base (11) has three bases, and the three bases are respectively supported on the left fulcrum test bearing (4) of the main shaft (3) to be tested and the right fulcrum test bearing (8) of the main shaft (3) to be tested, and are supported at the middle section of the main shaft (3) to be tested through a loading bearing (7).
3. The impact test equipment for the carrier-based main shaft bearing according to claim 2, wherein the box base (11) further comprises a box upper cover (5), the box upper cover (5) is arranged right above the main shaft (3) to be tested, and the radial hydraulic loading assembly (6) is arranged on the box upper cover (5) and vertically and downwardly connected with the loading bearing (7).
4. The impact test equipment for the carrier-based main shaft bearing according to claim 1, characterized by further comprising a hydraulic cylinder base (10), wherein the hydraulic cylinder base (10) is arranged on the test platform (12) and is connected with the radial hydraulic loading assembly (6) and the axial hydraulic loading assembly (9).
5. The impact test equipment for the carrier-based main shaft bearing according to claim 2, wherein the power driving system comprises a motor (1) and a speed increaser (2); the lubricating system comprises a hydraulic loading system (13), a loading bearing lubricating system (14), a test bearing lubricating system (15) and a speed increaser lubricating system (16); the hydraulic loading system (13) is connected with the hydraulic loading assembly (6) and the axial hydraulic loading assembly (9) through the measurement and control system, the loading bearing lubricating system (14) is connected with the loading bearing (7) through the measurement and control system, the test bearing lubricating system (15) is connected with the left fulcrum test bearing (4) and the right fulcrum test bearing (8) through the measurement and control system, the speed increaser lubricating system (16) is connected with the speed increaser (2) through the measurement and control system, and the measurement and control system is connected with the motor.
6. The carrier-based main shaft bearing impact testing device according to claim 1, characterized in that the measurement and control system comprises a data acquisition system (17), a control system (18) and a monitoring system (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021557874.4U CN213068195U (en) | 2020-07-31 | 2020-07-31 | Ship-borne main shaft bearing impact test equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021557874.4U CN213068195U (en) | 2020-07-31 | 2020-07-31 | Ship-borne main shaft bearing impact test equipment |
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| CN213068195U true CN213068195U (en) | 2021-04-27 |
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| CN202021557874.4U Active CN213068195U (en) | 2020-07-31 | 2020-07-31 | Ship-borne main shaft bearing impact test equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588245A (en) * | 2021-08-18 | 2021-11-02 | 中国航发贵阳发动机设计研究所 | Reverse temperature field control device of vertical wheel disc over-rotation tester |
| CN114608824A (en) * | 2022-03-28 | 2022-06-10 | 芜湖伦比轴承有限公司 | High-speed performance test equipment for high-speed rail axle box bearing |
| CN115355193A (en) * | 2022-10-24 | 2022-11-18 | 中国航发四川燃气涡轮研究院 | Dynamic regulation and control method for axial force of gas compressor under heating and pressurizing conditions |
-
2020
- 2020-07-31 CN CN202021557874.4U patent/CN213068195U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588245A (en) * | 2021-08-18 | 2021-11-02 | 中国航发贵阳发动机设计研究所 | Reverse temperature field control device of vertical wheel disc over-rotation tester |
| CN114608824A (en) * | 2022-03-28 | 2022-06-10 | 芜湖伦比轴承有限公司 | High-speed performance test equipment for high-speed rail axle box bearing |
| CN114608824B (en) * | 2022-03-28 | 2024-04-16 | 芜湖伦比轴承有限公司 | High-speed performance test equipment for high-speed railway axle box bearing |
| CN115355193A (en) * | 2022-10-24 | 2022-11-18 | 中国航发四川燃气涡轮研究院 | Dynamic regulation and control method for axial force of gas compressor under heating and pressurizing conditions |
| CN115355193B (en) * | 2022-10-24 | 2023-03-07 | 中国航发四川燃气涡轮研究院 | Dynamic regulation and control method for axial force of gas compressor under heating and pressurizing conditions |
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