CN107631876A - One kind is used for dynamic loading properties of journal bearing lubricated lubrication friction property test platform - Google Patents

One kind is used for dynamic loading properties of journal bearing lubricated lubrication friction property test platform Download PDF

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Publication number
CN107631876A
CN107631876A CN201710671842.3A CN201710671842A CN107631876A CN 107631876 A CN107631876 A CN 107631876A CN 201710671842 A CN201710671842 A CN 201710671842A CN 107631876 A CN107631876 A CN 107631876A
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CN
China
Prior art keywords
bearing
casing
sliding bearing
test
ring
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Pending
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CN201710671842.3A
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Chinese (zh)
Inventor
何涛
田佳彬
王刚伟
王娟
张雪冰
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719th Research Institute of CSIC
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719th Research Institute of CSIC
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Priority to CN201710671842.3A priority Critical patent/CN107631876A/en
Publication of CN107631876A publication Critical patent/CN107631876A/en
Pending legal-status Critical Current

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  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

The present invention provides one kind and is used for dynamic loading properties of journal bearing lubricated lubrication friction property test platform, including motor, main shaft, yielding coupling, bearing supporting steel disc, sliding bearing, current vortex sensor, pressure sensor, ring of tying tight, load, oil pump, casing, connecting rod, stress bar and thermocouple;Current vortex sensor is installed on the end face of sliding bearing, for testing the axle center displacement of axle front and back end;Pressure sensor is installed on the bottom of sliding bearing, for test bearing oil film pressure;Thermocouple is embedded to bearing deposit, the temperature for test bearing;Ring of tying tight is tied tight sliding bearing, and one end that connecting rod is penetrated in casing is connected with ring of tying tight, and one end outside casing is connected with stress bar, and strain transducer is posted on stress bar and is used for test bearing frictional force.The present invention is used for the static parameter of sliding bearing tested under different experiments operating mode, and can simulate well actual axle in the course of the work tail end stand under load situations such as, there is provided valuable lubrication parameter data.

Description

One kind is used for dynamic loading properties of journal bearing lubricated lubrication friction property test platform
Technical field
The invention belongs to bearing performance technical field of measurement and test, more particularly to a kind of dynamic loading properties of journal bearing lubricated lubrication that is used for is rubbed Wipe property test platform.
Background technology
Sliding bearing is machine components essential in motive power machine device, and the reliable operation of motive power machine device Property, durability and service life and its lubrication friction performance have very close relationship.The work(of various power set in recent years Rate density is continuously increased so that and the requirement to sliding bearing performance is more and more stricter, and in operation process caused by insufficient lubrication The accident of bearing wear largely occurs so that research sliding bearing lubricating frictional behaviour is very necessary.
Existing bush(ing) bearing experimental bench normally only tests the test of the lubrications such as oil film pressure, oil film temperature, and seldom It is related to the test of bearing friction coefficient;And most of radial sliding bearing test stand uses bearing load mode, it is impossible to which simulation is real The actual conditions such as border main shaft tail end stand under load, such as ship stern tube bearing;Do not occur for reaction shaft flexing etc. to lubricity at present Can and bearing friction index impacts it is test bed.
The content of the invention
In view of this, it is an object of the invention to for insufficient existing for existing radial sliding bearing test stand, there is provided One kind is used for dynamic loading properties of journal bearing lubricated lubrication friction property test platform, for testing the sliding axle under different experiments operating mode The static parameter (oil film pressure, oil film temperature, main shaft flexure and bearing friction power) held, and actual axle can be simulated well in work During work situations such as tail end stand under load, there is provided valuable lubrication parameter data.
Realize that technical scheme is as follows:
One kind is used for dynamic loading properties of journal bearing lubricated lubrication friction property test platform, including motor, main shaft, elastic shaft coupling Device, bearing supporting steel disc, sliding bearing, current vortex sensor, the pressure sensor, ring of tying tight, load, oil pump, casing, company Extension bar, stress bar and thermocouple;
Motor is connected by yielding coupling with main shaft one end, the other end of main shaft through after the sliding bearing in casing with Load is connected;The sliding bearing is fixed by the bearing supporting steel disc (5) for being connected to casing top;Opened on the sliding bearing There is fuel feed hole, fuel feed hole is connected with the oil pump outside casing;At least one oil outlet is opened up on the casing;
The current vortex sensor is installed on the end face of sliding bearing, for testing the axle center displacement of axle front and back end;Institute The bottom that pressure sensor is installed on sliding bearing is stated, for test bearing oil film pressure;The thermocouple is embedded to bearing deposit, Temperature for test bearing;The ring of tying tight is tied tight the sliding bearing, one end and ring of tying tight that connecting rod is penetrated in casing It is connected, one end outside casing is connected with stress bar, and strain transducer is posted on the stress bar and is used for test bearing friction Power.
Further, present invention additionally comprises ball bearing, the part that main shaft is in outside casing is supported by ball bearing.
Further, the lower bearing of sliding bearing of the present invention circumferentially angularly opens up 7 oil pressure holes, and each bore dia is 0.5mm。
The present invention has the following advantages that compared with prior art:
(1) this testing stand main shaft uses tail end loading, can be with easy and effective simulation practical bearing lubricating status;Tail simultaneously The main shaft that end loading can be studied under loading condition bends the influence to bearing lubrication performance and bearing friction coefficient.Tail end loads With bearing tail end apart from adjustable, avoid that hydraulic system loading can be used, simple in construction, cost is relatively low.
(2) this testing stand middle (center) bearing is to be fixed on to be connected with casing top on bearing support steel piece (using inversion support Form), bearing can be made more stable in operation process.
(3) it is simple and easy by connecting rod and bearing friction force test device that stress bar forms in this testing stand, can be with ten Divide the convenient various operating mode properties of journal bearing lubricated frictional force of test.
(4) this experimental bench sliding bearing front end is using ball bearing supporting and yielding coupling, by influence factors such as motors Exclude, can effectively study sliding bearing lubricating frictional behaviour.
(5) this test platform structure is simple, easy to operate, can very easily change experiment sliding bearing with coordinating main shaft Material property, the wide ratio in bearing footpath, relative gap, lubricating oil quality, bearing load, carry out bearing difference operating mode under experiment.
(6) this testing stand bearing front/rear end tests displacement using two current vortex sensors, can converse front and rear The position in axle center and the attitude angle, it can intuitively represent very much flexure situation of the shaft under actual motion state.By test temperature Thermocouple embedment bearing deposit so that test result is more stable.Three sections open up oilhole on lower bearing, and oil is drawn Oil film pressure is tested, influence of the quantitative analysis shaft flexing to bearing lubrication can be changed by the oil film pressure in three sections.
Brief description of the drawings
Fig. 1 is the structure principle chart of the present invention;
Fig. 2 oil film pressure test arrangement figures;
Wherein, a is test bearing schematic diagram, each section oil film pressure point layout figures of b;
Fig. 3 shaft core position test schematic diagrams;
Wherein, a is section II shaft core position point layout figures, b shaft core position relations;
Fig. 4 is the friction testing schematic diagram of test bearing;
Wherein, motor -1, main shaft -2, yielding coupling -3, ball bearing -4, bearing supporting steel disc -5, bearing fuel feed hole - 6th, sliding bearing -7, current vortex sensor -8, the pressure sensor -9, ring -10 of tying tight, load -11, oil pump -12, gear oil Plate -13, stand basis -14, casing -15, connecting rod -17, stress bar -18.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
Structure principle chart as shown in Figure 1, provide one kind to the present invention and be used for dynamic loading properties of journal bearing lubricated lubrication friction Can be test bed, including motor 1, main shaft 2, yielding coupling 3, ball bearing 4, bearing supporting steel disc 5, sliding bearing 7, electricity Eddy current sensor 8, the pressure sensor 9, ring 10 of tying tight, load 11, oil pump 12, casing 15, connecting rod 17, stress bar 18 and Thermocouple;Specific implementation process is:
Motor 1 drives main shaft 2 to operate, and changes the rotating speed of main shaft 2 by the rotating speed of frequency converter regulation motor 1, to meet The working condition requirement of axle difference linear velocity during experiment.The loading of main shaft 2 is by adjusting shaft tail end load 11 and load distance between bearing tail end Distance L2 is realized.By changing the width of sliding bearing 7, change the wide ratio in footpath of sliding bearing 7, realize that different footpaths are wide with this Than the performance test of bearing.To prevent lubricating oil splash, to the radial seal of casing 7.By arranging electricity at the both ends of sliding bearing 7 Eddy current sensor 8, pressure sensor is arranged in the bottom of sliding bearing 7, immersions thermocouple and is tying tight on bearing deposit Connection posts the stress bar 18 of strain transducer to realize lubrication bearing film pressure, oil film on the ring 10 of tying tight of sliding bearing 7 The measurement of thickness, shaft flexing, temperature and coefficient of friction, and these performance parameters are shown in real time by patterned mode.
The oil film pressure test arrangement combination accompanying drawing 2 of the present invention is described as follows:
Fig. 2 show oil film pressure test arrangement figure.As shown in Figure 2 a, section II is bearing bush intermediate cross-section, section I, it is 1/4L that section III occupies section II distances respectively (L is bearing width);Fig. 2 b show each section oil film pressure point layout Figure.In test, 7 oil pressure holes are circumferentially angularly opened up in lower bearing, each bore dia is 0.5mm.
The shaft core position test of the present invention is described as follows with reference to accompanying drawing 3:
Fig. 3 show shaft core position and calculates schematic diagram.
As shown in Figure 3 a, two eddy current displacement sensors are respectively set on bearing front/rear end vertical angle, and position is closed System is as shown in the figure.Shaft core position is with testing the relation of displacement as shown in Figure 3 b.It can be obtained by figure:For bearing centre section, If the displacement that the current vortex sensor on bearing x, y measures is hx, hy, it is contemplated that axle center is inclined with respect to bearing centre When the heart is away from compared with bearing one very under value, then shaft core position can be calculated that (x, y are respectively axle in formula by following formula X corresponding to the heart, the coordinate of y-axis, c are bearing clearance):x≈-(c-hx), y ≈ c-hy
The structural principle combination accompanying drawing 4 of the bearing friction power mechanism for testing of the present invention is described as follows:
Fig. 4 show bearing friction power test schematic diagram.A. bearing is inverted is connected with casing 15 by steel disc supporting 5;b. Testing stand uses tail end bringing onto load;C. the test of frictional force is realized by the system of ring 10- pull bar 17- stress bars 18 of tying tight.
The experiment porch that the present invention studies as the dynamic load bush(ing) bearing lubrication friction performance test of oil lubrication, mainly The Different structural parameters (the wide ratio in footpath, relative gap) of bearing, lubricating system (dynamic pressure, static pressure), lubricating oil quality, work can be carried out Make condition (speed, load), the experiment that the parameter such as bearing material influences on bearing lubrication frictional behaviour, load, the speed of experiment It is wide etc. scope, different operating modes can be simulated.Meanwhile the performance of test includes oil film pressure, temperature, thickness, frictional force, axle center rail Mark, attitude angle etc., test parameter can reflect the lubrication property of bearing comprehensively, be that ship stern tube bearing is isometrical to sliding bearing Type selecting and design provide reference and the foundation of certain values.
In summary, presently preferred embodiments of the present invention is these are only, is not intended to limit the scope of the present invention. Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., it should be included in the present invention's Within protection domain.

Claims (3)

1. one kind be used for dynamic loading properties of journal bearing lubricated lubrication friction property test platform, it is characterised in that including motor (1), Main shaft (2), yielding coupling (3), bearing supporting steel disc (5), sliding bearing (7), current vortex sensor (8), the pressure pass Sensor (9), ring of tying tight (10), load (11), oil pump (12), casing (15), connecting rod (17), stress bar (18) and thermocouple;
Motor (1) is connected by yielding coupling (3) with main shaft (2) one end, and the other end of main shaft (2) is passed through in casing (15) Sliding bearing (7) is connected with load (11) afterwards;The sliding bearing (7) passes through the bearing support steel that is connected at the top of casing (15) Piece (5) is fixed;Fuel feed hole (6) is provided with the sliding bearing (7), oil pump (12) of the fuel feed hole (6) with casing (15) outside is connected; At least one oil outlet is opened up on the casing (13);
The current vortex sensor (8) is installed on the end face of sliding bearing (7), for testing the axle center displacement of axle front and back end; The pressure sensor (9) is installed on the bottom of sliding bearing (7), for test bearing oil film pressure;The thermocouple embedment Bearing deposit, the temperature for test bearing;The ring of tying tight (10) is tied tight the sliding bearing (7), and connecting rod (17) penetrates One end in casing (15) is connected with ring of tying tight (10), is connected positioned at the one end of casing (15) outside with stress bar (18), described to answer Strain transducer is posted on power bar (18) and is used for test bearing frictional force.
2. it is used for dynamic loading properties of journal bearing lubricated lubrication friction property test platform according to claim 1, it is characterised in that Also include ball bearing (4), main shaft (2) is in the part of casing (15) outside and supported by ball bearing (4).
3. it is used for dynamic loading properties of journal bearing lubricated lubrication friction property test platform according to claim 1, it is characterised in that The lower bearing of the sliding bearing (7) circumferentially angularly opens up 7 oil pressure holes, and each bore dia is 0.5mm.
CN201710671842.3A 2017-08-08 2017-08-08 One kind is used for dynamic loading properties of journal bearing lubricated lubrication friction property test platform Pending CN107631876A (en)

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Cited By (10)

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Publication number Priority date Publication date Assignee Title
CN109322924A (en) * 2018-08-10 2019-02-12 南京航空航天大学 The intelligent sliding bearing and its control method of auto-control oil film thickness
CN109342058A (en) * 2018-10-19 2019-02-15 东莞理工学院 A kind of Mechanical Manufacture System bearing operation frictional force real-time monitoring device
CN109470479A (en) * 2018-12-26 2019-03-15 吉林大学 Large-diameter sliding bearing group tribological property testing stand adjustable in pitch under dynamic loading
CN109596516A (en) * 2018-12-10 2019-04-09 南方科技大学 Friction and wear characteristic testing device and testing method thereof
CN110132594A (en) * 2019-06-26 2019-08-16 一汽解放汽车有限公司 A kind of engine bearing friction measurement device
CN111649941A (en) * 2020-06-12 2020-09-11 上海大学 Multifunctional sliding bearing friction wear testing machine
CN111811817A (en) * 2020-07-15 2020-10-23 合肥工业大学 High-precision fluid dynamic pressure sliding bearing comprehensive performance test platform
CN112763208A (en) * 2021-01-11 2021-05-07 西安理工大学 Method for testing lubricating performance of screw rod and star wheel meshing
CN113267333A (en) * 2021-07-19 2021-08-17 湖北东湖实验室 Comprehensive performance testing device for shaftless pump jet propeller and using method thereof
CN114203003A (en) * 2021-11-23 2022-03-18 华中科技大学 Multifunctional simulation test device for ship

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109322924A (en) * 2018-08-10 2019-02-12 南京航空航天大学 The intelligent sliding bearing and its control method of auto-control oil film thickness
CN109322924B (en) * 2018-08-10 2020-10-20 南京航空航天大学 Intelligent sliding bearing capable of automatically regulating and controlling oil film thickness and control method thereof
CN109342058A (en) * 2018-10-19 2019-02-15 东莞理工学院 A kind of Mechanical Manufacture System bearing operation frictional force real-time monitoring device
CN109596516A (en) * 2018-12-10 2019-04-09 南方科技大学 Friction and wear characteristic testing device and testing method thereof
CN109470479A (en) * 2018-12-26 2019-03-15 吉林大学 Large-diameter sliding bearing group tribological property testing stand adjustable in pitch under dynamic loading
CN109470479B (en) * 2018-12-26 2023-09-26 吉林大学重庆研究院 Friction performance test bed for large-shaft-diameter sliding bearing group with adjustable distance under dynamic load
CN110132594A (en) * 2019-06-26 2019-08-16 一汽解放汽车有限公司 A kind of engine bearing friction measurement device
CN111649941A (en) * 2020-06-12 2020-09-11 上海大学 Multifunctional sliding bearing friction wear testing machine
CN111811817A (en) * 2020-07-15 2020-10-23 合肥工业大学 High-precision fluid dynamic pressure sliding bearing comprehensive performance test platform
CN111811817B (en) * 2020-07-15 2022-07-12 合肥工业大学 High-precision fluid dynamic pressure sliding bearing comprehensive performance test platform
CN112763208A (en) * 2021-01-11 2021-05-07 西安理工大学 Method for testing lubricating performance of screw rod and star wheel meshing
CN112763208B (en) * 2021-01-11 2022-03-22 西安理工大学 Method for testing lubricating performance of screw rod and star wheel meshing
CN113267333A (en) * 2021-07-19 2021-08-17 湖北东湖实验室 Comprehensive performance testing device for shaftless pump jet propeller and using method thereof
CN113267333B (en) * 2021-07-19 2021-09-24 湖北东湖实验室 Comprehensive performance testing device for shaftless pump jet propeller and using method thereof
CN114203003A (en) * 2021-11-23 2022-03-18 华中科技大学 Multifunctional simulation test device for ship

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