CN111551365A - Water lubrication thrust bearing test device - Google Patents
Water lubrication thrust bearing test device Download PDFInfo
- Publication number
- CN111551365A CN111551365A CN202010511332.1A CN202010511332A CN111551365A CN 111551365 A CN111551365 A CN 111551365A CN 202010511332 A CN202010511332 A CN 202010511332A CN 111551365 A CN111551365 A CN 111551365A
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- CN
- China
- Prior art keywords
- water
- box body
- bearing
- sealed box
- thrust bearing
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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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Classifications
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K3/00—Thermometers giving results other than momentary value of temperature
- G01K3/08—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
Abstract
The invention relates to a water lubrication thrust bearing test device, which consists of a sealed box body, a transmission shaft, a bracket, a dragging motor and other auxiliary equipment, wherein a shaft coupling 14 arranged in the sealed box body 4 is provided with a thrust disc 3; the coupling 14 is connected with a transmission shaft 17 provided with the lower thrust disc 5 through a bolt 1, and the transmission shaft 17 is connected with the dragging motor 13 through a hole at the lower part of the sealing box body 4. The invention can complete the tests of the abrasion, the performance, the service life and the like of the thrust bearing, can adjust the temperature and the pressure in the sealed box body through equipment such as an external booster pump, a heat exchanger and the like in the test process, achieves the environmental requirement of simulating the real operation of the shielding motor, can meet the possibility that two sets of bearings are tested in the same device at the same time, and achieves the purpose of saving the test time and energy.
Description
Technical Field
The invention is applied to the field of water lubrication thrust bearing shield motors, and relates to a water lubrication thrust bearing test device.
Background
The water lubrication bearing shield motor pump is widely applied to a pressurized water reactor nuclear power station and is an important key device of a power system, and the water lubrication bearing shield motor pump can be lubricated by water conveyed by the pump, so that the risk that a water path is possibly polluted by an oil lubrication bearing is avoided, an oil lubrication control system is omitted, the structure of the pump is simplified, and the loss of the bearing is reduced. The maintenance period and the service life of the canned motor pump are determined by the performance index and the reliability of the bearing, so the service life index of the canned motor lubricated by water for the nuclear power plant is required to be higher and higher at present.
Under the same external conditions, the viscosity of water is about 1/65 of the viscosity of oil generally, and the thickness of a water film is about 1/10 of the thickness of an oil film, so that not only is accurate calculation required during the design of the water lubrication bearing, but also various performance and service life indexes of the bearing are determined through single start-stop and operation tests of the bearing. Most of the water lubrication bearing test devices published at present have targeted requirements for a certain type of shielding motor pump, and generally only pay attention to single performance, such as requirements on water film thickness, friction loss, operation stability and the like, so that the universality is poor.
Disclosure of Invention
The invention aims to provide a water lubrication thrust bearing test device capable of integrating material screening, water film thickness measurement and operation stability measurement, and the technical scheme of the invention is as follows: a water lubrication thrust bearing test device is characterized in that a sealed box body (4) of a thrust bearing is arranged at the upper part of the test device, and a thrust disc (3) is arranged on a coupler (14) arranged in the sealed box body (4); the coupling (14) is connected with a transmission shaft (17) of the lower thrust disc (5) through a bolt (1), the transmission shaft (17) is connected with the dragging motor (13) through a hole at the lower part of the sealed box body (4), a sealing element (16) is installed at the hole at the lower part of the sealed box body on the transmission shaft (17), a guide bearing (7) which enables the transmission shaft (17) to be in a limiting state is installed at the lower part of the sealing element (16), an axial force loading device (10) is installed at the lower part of the guide bearing (7), axial load is applied when the test thrust bearing (6) runs by the axial force loading device (10), a bearing conical roller bearing (8) is installed at the lower part of the axial force loading device (10), a guide bearing (11) is installed at the lower part of the bearing conical roller bearing, the lowest end of the transmission shaft (9) is, the dragging motor (13) is installed on the bearing rack supporting plate (18), the two non-contact displacement sensors (34) are installed on the sealing box body (4), the water inlet pipe (19) and the water outlet pipe (20) are installed on the circumferential portion of the sealing box body (4), the water outlet pipe (20) is connected with the water inlet (23) of the circulating water tank (35), the water outlet (22) of the circulating water tank (35) is connected with the water inlet (21) of the cooler (26), the water outlet (25) of the cooler (26) is connected with the water inlet of the sealing water tank (4), and the booster pump (24) is arranged between the water outlet (25) of the cooler (26) and the water inlet of.
An upper supporting plate (30) and a lower supporting plate (31) are arranged in the sealed box body (4); the lower thrust bearing (6) and the lower thrust disc (5) are arranged on the lower supporting plate (31), and the upper thrust bearing (32) and the upper thrust disc (3) are arranged on the upper supporting plate (30).
A water lubrication thrust bearing test bed is characterized in that a rotating shaft (17) is connected with a motor shaft (33) through an elastic coupling (12).
The water inlet pipe (19) and the water outlet pipe (20) of the sealed box body (4) are both provided with a temperature sensor (28) and a flowmeter (27).
Two non-contact displacement sensors (34) are arranged on the sealed box body (4).
The working principle of the invention is as follows:
the upper part of the invention is provided with a sealed box body of a thrust bearing, the sealed box body is internally provided with an upper thrust disc, a lower thrust disc, a rotor transmission shaft and a coupling, the transmission shaft is connected with a dragging motor through a hole at the lower part of the sealed box body, the transmission shaft and the hole at the lower part of the sealed box body are provided with seals, the lower part of the seal is provided with a guide bearing so that the transmission shaft is in a limiting state, the lower part of the guide bearing is provided with an axial force loading device, the device can apply axial load to the test thrust bearing during operation, the lower part of the axial force loading device is provided with a bearing tapered roller bearing, the lower part of the bearing tapered roller bearing is provided with the guide bearing, the lowest. Two non-contact displacement sensors are arranged on the sealed box body and used for measuring the thickness of the water film and the abrasion loss of the bearing.
The upper portion of the sealed box body is provided with a sealed cover for preventing water from overflowing from the upper portion, the circumferential portion of the sealed box body is provided with a water inlet pipe and a water outlet pipe, a temperature sensor and a flowmeter are installed on the water inlet pipe and the water outlet pipe, the temperature difference and the flow of the water outlet pipe are tested, the friction loss data of the bearing are calculated accordingly, the water outlet pipe is connected with a water inlet of the circulating water tank, a water outlet of the circulating water tank is connected with a water inlet of the cooler, the temperature in the sealed box body is guaranteed to be within a test requirement range, a water outlet of the cooler is connected with a water inlet of the.
An upper layer supporting plate structure and a lower layer supporting plate structure are arranged in the sealing box body, and under the condition that the required rotating speeds are the same, the upper supporting plate structure and the lower supporting plate structure can be respectively provided with an upper thrust bearing, a lower thrust bearing, an upper thrust disc and a lower thrust disc which are made of different materials, so that the bearing material matching test or the service life test of bearings with different structures can be completed.
The invention has the beneficial effects that:
1) the structure is compact, and the occupied space is small;
2) an upper thrust disc, a lower thrust disc, an upper thrust bearing and a lower thrust bearing are arranged in the sealing box body, and the device is used for completing bearing material matching tests or service life tests of bearings with different structures.
3) Two non-contact displacement sensors are mounted on the sealing box body, and the thickness of a water film and the abrasion loss of a bearing can be measured.
4) The water temperature and the pressure in the water tank can be given according to the concrete requirements of the bearing test, and the test result of the bearing under the actual working condition can be obtained.
Description of the drawings:
FIG. 1 is a cross-sectional view of the overall structure of the present invention
The specific implementation mode is as follows:
as shown in figure 1, the water lubrication thrust bearing test device, the upper part of the test device is provided with a sealed box body 4 of a thrust bearing, and a coupling 14 arranged in the sealed box body 4 is provided with an upper thrust disc 3; the shaft coupling 14 is connected with a transmission shaft 17 provided with a lower thrust disc 5 through a bolt 1, the transmission shaft 17 is connected with a dragging motor 13 through an opening at the lower part of a sealing box body 4, a sealing element 16 is arranged at the opening at the lower part of the sealing box body 17, a guide bearing 7 which enables the transmission shaft 17 to be in a limiting state is arranged at the lower part of the sealing element 16, an axial force loading device 10 is arranged at the lower part of the guide bearing 7, the axial force loading device 10 applies axial load to the test thrust bearing 6 during operation, a bearing tapered roller bearing 8 is arranged at the lower part of the axial force loading device 10, a guide bearing 11 is arranged at the lower part of the bearing tapered roller bearing, the lowest end of the transmission shaft 9 is connected with the dragging motor 13 through an elastic shaft coupling 12, the dragging motor 13 is arranged on a bearing rack support plate 18, two non-contact displacement, the water outlet pipe 20 is connected with a water inlet 23 of a circulating water tank 35, a water outlet 22 of the circulating water tank 35 is connected with a water inlet 21 of a cooler 26, a water outlet 25 of the cooler 26 is connected with a water inlet of a sealed water tank 4, and a booster pump 24 is arranged between the water outlet 25 of the cooler 26 and the water inlet of the sealed water tank.
An upper supporting plate 30 and a lower supporting plate 31 are arranged in the sealed box body 4; the lower thrust bearing 6 and the lower thrust disk 5 are mounted on the lower support plate 31, and the upper thrust bearing 32 and the upper thrust disk 3 are mounted on the upper support plate 30.
The water lubrication thrust bearing test bed, the rotating shaft 17 is connected with the motor shaft 33 through the elastic coupling 12.
The inlet pipe 19 and the outlet pipe 20 of the sealed box body 4 are both provided with a temperature sensor 28 and a flowmeter 27.
Two contactless displacement sensors 34 are mounted on the sealed housing 4.
The testing device consists of a circulating water tank 35, a connecting pipeline, a sealed box body and a bearing testing part sleeve. An upper thrust disc is arranged on a coupling arranged in the sealed box body; the shaft coupling is connected with the transmission shaft of the lower thrust disc, and the upper thrust disc and the lower thrust disc are fastened by nuts. The transmission shaft is connected with a dragging motor, a sealing element is arranged at a hole in the lower part of the sealing box body, a guide bearing in a limiting state is arranged at the lower part of the sealing element, an axial force loading device is arranged at the lower part of the guide bearing, axial load is applied to the test thrust bearing during operation, a tapered roller bearing is arranged at the lower part of the axial force loading device, and the guide bearing is arranged at the lower part of the axial force loading device. The lowermost end of the transmission shaft is connected with a dragging motor shaft through an elastic coupling, and the dragging motor is arranged on a supporting plate of the bearing rack. Two non-contact displacement sensors are fixed on the sealed box body and used for measuring the thickness of the water film and the abrasion loss of the bearing.
The water inlet pipe and the water outlet pipe are arranged on the circumferential part of the sealed box body, the water outlet pipe is connected with the water inlet of the circulating water tank, the water outlet of the circulating water tank is connected with the water inlet of the cooler, the water outlet of the cooler is connected with the water inlet of the sealed water tank, and the booster pump is arranged between the water outlet of the cooler and the water inlet of the sealed water tank.
An upper layer of supporting plate and a lower layer of supporting plate are arranged in the sealed box body; the upper thrust bearing, the lower thrust bearing, the upper thrust disc and the lower thrust disc are respectively arranged on the upper supporting plate and the lower supporting plate, and the water inlet pipe and the water outlet pipe of the sealed box body are respectively provided with a temperature sensor and a flowmeter.
The invention is further elucidated with reference to the drawing.
As shown in fig. 1, a sealed box body 4 of the thrust bearing is arranged at the upper part of the water lubrication thrust bearing test device, and a coupling 14 of an upper thrust disc 3 is arranged in the sealed box body; the shaft coupling links to each other through bolt 1 with the transmission shaft 17 of thrust disc 5 under the installation, transmission shaft 17 is connected with dragging motor 13 through 4 lower part trompils of seal box, transmission shaft and seal box lower part trompil department installation sealing member 16, sealed lower part installation direction bearing 7 is in spacing state so that the transmission shaft, direction bearing lower part installation axial force loading device 10, the device realizes exerting axial load when moving test thrust bearing 6, bearing tapered roller bearing 8 is installed to axial force loading device lower part, bearing tapered roller bearing lower part installation direction bearing 11, the transmission shaft 9 is connected through elastic coupling 12 with dragging motor 13 axle for the lowest end, dragging motor installs on bearing rack backup pad 18.
The upper part of a sealed box body of the bearing test device is provided with a sealing cover 29 for preventing water from overflowing from the upper part, the circumferential part of the sealed box body is provided with a water inlet pipe 19 and a water outlet pipe 20, a temperature sensor 28 and a flow meter 27 are arranged on the water inlet pipe 19 and the water outlet pipe 20 for testing the temperature difference and the flow of the water inlet pipe and the water outlet pipe, the friction loss data of the bearing is calculated according to the temperature difference and the flow, the water outlet pipe is connected with a water inlet 23 of a circulating water tank, a water outlet 22 of the circulating water tank is connected with a water inlet 21 of a cooler 26 for ensuring that the temperature in the sealed box body is within a test requirement range, a water outlet.
Two layers of supporting plate structures are installed in the seal box body 4, under the condition that the required rotating speed is the same, the two layers of supporting plate structures can be respectively provided with bearings and thrust discs made of different materials, the upper thrust disc 3 is locked and fixed by the upper nut 2, and the lower thrust disc 5 is locked and fixed by the lower nut 15, so that the bearing material matching test or the service life test of bearings with different structures can be completed.
Claims (5)
1. The utility model provides a lubricated thrust bearing test device of water, characterized by: a sealed box body (4) of a thrust bearing is arranged at the upper part of the test device, and a thrust disc (3) is arranged on a coupling (14) arranged in the sealed box body (4); the coupling (14) is connected with a transmission shaft (17) of the lower thrust disc (5) through a bolt (1), the transmission shaft (17) is connected with a dragging motor (13) through an opening at the lower part of the sealed box body (4), a sealing element (16) is arranged at the opening at the lower part of the sealed box body on the transmission shaft (17), a guide bearing (7) which enables the transmission shaft (17) to be in a limiting state is arranged at the lower part of the sealing element (16), an axial force loading device (10) is arranged at the lower part of the guide bearing (7), axial load is applied when the test thrust bearing (6) runs by the axial force loading device (10), a bearing conical roller bearing (8) is arranged at the lower part of the axial force loading device (10), a guide bearing (11) is arranged at the lower part of the bearing conical roller bearing, the lowest end of the transmission shaft (9) is connected with the shaft of the dragging motor (13) through an elastic coupling, two non-contact displacement sensors (34) are mounted on the sealed box body (4), a water inlet pipe (19) and a water outlet pipe (20) are mounted on the circumferential portion of the sealed box body (4), the water outlet pipe (20) is connected with a water inlet (23) of a circulating water tank (35), a water outlet (22) of the circulating water tank (35) is connected with a water inlet (21) of a cooler (26), a water outlet (25) of the cooler (26) is connected with a water inlet of the sealed water tank (4), and a booster pump (24) is arranged between the water outlet (25) of the cooler (26) and the water inlet of the sealed water.
2. The water-lubricated thrust bearing test device of claim 1, wherein: an upper supporting plate (30) and a lower supporting plate (31) are arranged in the sealed box body (4); the lower thrust bearing (6) and the lower thrust disc (5) are arranged on the lower supporting plate (31), and the upper thrust bearing (32) and the upper thrust disc (3) are arranged on the upper supporting plate (30).
3. The water-lubricated thrust bearing test device of claim 1, wherein: a water lubrication thrust bearing test bed is characterized in that a rotating shaft (17) is connected with a motor shaft (33) through an elastic coupling (12).
4. The water-lubricated thrust bearing test device of claim 1, wherein: the water inlet pipe (19) and the water outlet pipe (20) of the sealed box body (4) are both provided with a temperature sensor (28) and a flowmeter (27).
5. The water-lubricated thrust bearing test device of claim 1, wherein: two non-contact displacement sensors (34) are arranged on the sealed box body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010511332.1A CN111551365A (en) | 2020-06-08 | 2020-06-08 | Water lubrication thrust bearing test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010511332.1A CN111551365A (en) | 2020-06-08 | 2020-06-08 | Water lubrication thrust bearing test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111551365A true CN111551365A (en) | 2020-08-18 |
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ID=72000728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010511332.1A Pending CN111551365A (en) | 2020-06-08 | 2020-06-08 | Water lubrication thrust bearing test device |
Country Status (1)
| Country | Link |
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| CN (1) | CN111551365A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112395A (en) * | 2021-12-21 | 2022-03-01 | 上海交通大学 | Multi-working-condition vibration-damping loading thrust sliding bearing test bed |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0792056A (en) * | 1993-09-24 | 1995-04-07 | Calsonic Corp | Life test device for thrust bearing |
| CN102840984A (en) * | 2012-09-21 | 2012-12-26 | 哈尔滨电机厂有限责任公司 | Double-steering bi-directional-loading thrust bearing test device |
| CN103776631A (en) * | 2014-01-27 | 2014-05-07 | 江苏大学 | Water lubrication bearing comprehensive test bed |
| CN203858108U (en) * | 2014-02-28 | 2014-10-01 | 武汉理工大学 | Water lubrication rubber tail bearing and machinery sealing performance test device |
| CN105628382A (en) * | 2016-01-18 | 2016-06-01 | 沈阳鼓风机集团核电泵业有限公司 | Reactor coolant pump water lubrication radial bearing test device and test simulation method |
| CN208459007U (en) * | 2016-12-27 | 2019-02-01 | 湖南崇德工业科技有限公司 | A kind of bearing test-bed |
-
2020
- 2020-06-08 CN CN202010511332.1A patent/CN111551365A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0792056A (en) * | 1993-09-24 | 1995-04-07 | Calsonic Corp | Life test device for thrust bearing |
| CN102840984A (en) * | 2012-09-21 | 2012-12-26 | 哈尔滨电机厂有限责任公司 | Double-steering bi-directional-loading thrust bearing test device |
| CN103776631A (en) * | 2014-01-27 | 2014-05-07 | 江苏大学 | Water lubrication bearing comprehensive test bed |
| CN203858108U (en) * | 2014-02-28 | 2014-10-01 | 武汉理工大学 | Water lubrication rubber tail bearing and machinery sealing performance test device |
| CN105628382A (en) * | 2016-01-18 | 2016-06-01 | 沈阳鼓风机集团核电泵业有限公司 | Reactor coolant pump water lubrication radial bearing test device and test simulation method |
| CN208459007U (en) * | 2016-12-27 | 2019-02-01 | 湖南崇德工业科技有限公司 | A kind of bearing test-bed |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112395A (en) * | 2021-12-21 | 2022-03-01 | 上海交通大学 | Multi-working-condition vibration-damping loading thrust sliding bearing test bed |
| CN114112395B (en) * | 2021-12-21 | 2023-03-31 | 上海交通大学 | Multi-working-condition vibration-damping loading thrust sliding bearing test bed |
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Application publication date: 20200818 |