CN110887662B - Open type water lubrication tail bearing test bed for ship - Google Patents
Open type water lubrication tail bearing test bed for ship Download PDFInfo
- Publication number
- CN110887662B CN110887662B CN201911030628.5A CN201911030628A CN110887662B CN 110887662 B CN110887662 B CN 110887662B CN 201911030628 A CN201911030628 A CN 201911030628A CN 110887662 B CN110887662 B CN 110887662B
- Authority
- CN
- China
- Prior art keywords
- bearing
- water
- water tank
- pressurizing
- transmission shaft
- Prior art date
- 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.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
- G01M13/045—Acoustic or vibration analysis
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a ship open type water lubrication tail bearing test bed, which comprises: a first base disposed on the table; the driving device is fixed on the first base and is sequentially connected with the torque sensor and the transmission shaft; the water tank is arranged on the workbench, one end of the transmission shaft, which is deviated from the torque sensor, penetrates through the side wall of the water tank and extends into the water tank, and a sealing device is arranged between the transmission shaft and the side wall of the water tank; the water lubrication bearing device group is arranged on a shaft section of the transmission shaft extending into the water tank; and the pressurizing device comprises a pressurizing support arranged on the workbench and a pressurizing assembly arranged on the pressurizing support and capable of pressurizing the water lubrication bearing device set, and the pressurizing assembly is arranged on the end surface of the water lubrication bearing device set, which deviates from the workbench, through a pressure sensor. The invention can simulate the working environment of the open type water lubricated bearing and the influence of the bending of the tail shaft on the performance of the water lubricated bearing more truly, thereby evaluating the performance of the bearing more truly and effectively.
Description
Technical Field
The invention relates to the technical field of mechanical equipment for ships, in particular to a ship open type water lubrication tail bearing test bed.
Background
The ship tail bearing is a key supporting part of a ship power propulsion system, and the performance of the ship tail bearing is one of the core problems of the whole power propulsion system, so that the reliability and the safety of the whole ship are seriously influenced. Different from an oil-lubricated bearing, the water-lubricated bearing adopts water as a lubricant, so that the water-lubricated bearing is more environment-friendly. Meanwhile, the water lubricated bearing does not need lubricating oil, so that the cost of ship navigation can be effectively reduced, and water pollution caused by lubricating oil leakage can be effectively prevented.
The main pressure of the water lubrication bearing in the working process comes from the self weight of the propeller, and the self weight of the propeller can cause the tail of the shaft to slightly bend and deform because the tail shaft of the ship is in a cantilever state. The bending of shafting can change the clearance distribution condition between water lubricated bearing and the tailshaft, and then produces great influence to the lubricated liquid distribution between the friction pair, also can aggravate the vibration of friction pair during operation simultaneously. At present, the lubricating modes of the water lubricating bearing are mainly divided into closed type lubrication and open type lubrication. The closed lubrication is realized by forcing water to flow in from the front end of the bearing by means of the pressure of the water pump, and the water flows out from the rear end and returns to the water pump to form water circulation. The closed water lubrication has the advantages that the water quality of circulating water can be ensured to be good, and the working reliability of the bearing can be ensured. However, the closed lubrication bearings must be equipped with seals at the front and rear ends of the bearings, which may greatly increase the resistance experienced during rotation of the shaft. Meanwhile, the sealing device is poor in lubricating and cooling conditions, so that the sealing part is easy to seriously abrade, and a large amount of circulating water is leaked. Open lubrication, i.e. the water lubricated bearing is entirely immersed in water, and the lubrication mainly depends on the flow of water in a sailing water area. Water flows in from the front end of the bearing and flows out from the rear end of the bearing, so that the purposes of lubrication and cooling are achieved. Because the quality of the lubricating water cannot be guaranteed, especially when the ship works in a silt environment, silt can enter between the bearing and the shaft, and damage is caused to a friction pair. The open type lubrication has the main advantages of simple structure and very convenient management and maintenance. Therefore, open lubrication is adopted in most of the water-lubricated tail bearings of ships at present.
However, the design and test of the current technology for water lubricated bearing test stands and bearings are mostly lubricated in a closed manner and few test stands can simulate the bending effect of the stern shaft of a ship. For example, an invention patent named water lubrication bearing test stand (application number: 201410040371.2, application date: 2014.01.27) discloses a water lubrication bearing test stand which mainly comprises a driving device, a loading device and a detection device. The device can effectively test the performance of the water lubrication bearing to a certain extent. However, the lubricating mode of the water-lubricated bearing for testing the water-lubricated bearing test bed is closed type lubrication, and meanwhile, the device does not simulate the influence of the bending effect of the shaft on the performance of the bearing.
Disclosure of Invention
The invention aims to provide a test bed for an open water lubrication tail bearing of a ship, which simulates the lubricating condition of open water lubrication and the influence of tail shaft bending on the performance of the water lubrication bearing on the basis of the lubricating condition, so that the test result is more accurate and has more guiding significance.
The scheme adopted by the invention for solving the technical problems is as follows:
an open water lubricated tail bearing test bench of boats and ships includes:
a first base disposed on the table;
the driving device is fixed on the first base and comprises a motor, an output shaft of the motor is sequentially connected with a torque sensor and a transmission shaft, the torque sensor is arranged on the first base through a torque sensor support, and the transmission shaft is arranged on the first base through a bearing and a bearing support sleeved on the bearing;
the water tank is arranged on the workbench, one end of the transmission shaft, which is far away from the torque sensor, penetrates through the side wall of the water tank and extends into the water tank, a sealing device is arranged between the transmission shaft and the side wall of the water tank, and the bearing support are positioned outside the water tank;
the water lubrication bearing device group is arranged on a shaft section of the transmission shaft extending into the water tank;
the pressurizing device comprises a pressurizing support arranged on the workbench and a pressurizing assembly arranged on the pressurizing support and capable of pressurizing the water lubrication bearing device group, wherein the pressurizing assembly extends downwards into the water tank, one end of the pressurizing assembly in the water tank is arranged through a pressure sensor, and the water lubrication bearing device group deviates from the end face of the workbench.
Furthermore, stretch into on the transmission shaft to the cover is equipped with the copper sheathing on the shaft part in the water tank, water lubricated bearing device group include with copper sheathing clearance fit's on the transmission shaft water lubricated bearing and shroud are in on the water lubricated bearing and with water lubricated bearing interference fit's bearing cap.
Further, an eddy current sensor and a temperature sensor are installed between the water lubrication bearing and the bearing cover, and a vibration sensor is further arranged on the bearing cover.
Further, the water tank is arranged on the workbench through the second base, and the pressurizing support is also arranged on the workbench through the second base.
Furthermore, the pressurizing assembly comprises a loading rack arranged on the top surface of the pressurizing support, a loading bolt arranged on the loading rack in a penetrating way, a spring top seat arranged at the bottom of the loading bolt, a spring with one end connected with the spring top seat, a spring base connected with the other end of the spring and a hollow sleeve limiting the spring and the spring base inside the hollow sleeve, the loading rack comprises two longitudinal rack bodies arranged on the pressurizing bracket and a transverse support plate connected with the two longitudinal rack bodies, the transverse support plate is provided with a threaded hole matched with the loading bolt, the loading bolt is connected with the transverse support plate through the threaded hole, the end side of the hollow sleeve, far away from the spring top seat, is arranged on the bearing cover, the inner diameter of the hollow sleeve is not smaller than the outer diameter of the spring top seat, and the spring base is arranged on the bearing cover through the pressure sensor.
Compared with the prior art, the invention has at least the following beneficial effects: the invention has compact and reasonable structure, good integrity and convenient disassembly and assembly; the base of the driving device is separated from the base of the testing section, so that the influence of the vibration of the driving device on the testing result can be effectively avoided; in addition, any supporting device is not arranged on the shaft section extending into the water tank on the transmission shaft, namely the shaft section extending into the water tank on the transmission shaft is in a suspended state in the water tank, so that the working environment of the open type water lubrication bearing device set can be simulated more truly, the water lubrication bearing device set is pressurized through the pressurizing device to simulate the influence of tail shaft bending on the performance of the water lubrication bearing, and a plurality of parameters such as friction coefficient, vibration, temperature, water film thickness and the like of the water lubrication tail bearing can be measured and tested in real time in the test process, so that the performance of the test bearing can be evaluated effectively, and the abrasion mechanism of the test bearing can be disclosed.
Drawings
FIG. 1 is a front view of an open water lubricated tail bearing test bed in accordance with an embodiment of the present invention;
FIG. 2 is a right side view of an open water lubricated tail bearing test bed in accordance with an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a pressurizing device according to an embodiment of the present invention.
Detailed Description
The following examples are provided to further illustrate the present invention for better understanding, but the present invention is not limited to the following examples.
As shown in fig. 1 and 2, the invention provides an open water lubrication tail bearing test bed for a ship, which comprises a first base 1, a driving device, a water tank 3, a second base 5, a water lubrication bearing device set and a pressurizing device. The first base 1 is disposed on a work table. The driving device comprises a servo motor 20, and the servo motor 20 is arranged on the first base 1 through a servo motor support 21. An output shaft of the servo motor 20 is sequentially connected with the torque sensor 22 and the transmission shaft 23, wherein the output shaft of the servo motor 20 is fixedly connected with one end of the torque sensor 22 through a coupler 24, and the other end of the torque sensor 22 is fixedly connected with one end of the transmission shaft 23 through a coupler 24, so that the servo motor 20 rotates to drive the torque sensor 22 and the transmission shaft 24 to rotate, and the torque sensor 22 collects dynamic torque data in a rotating process. In order to make the transmission structure more firm, the torque sensor 22 is disposed on the first base 1 through the torque sensor support 25, and the transmission shaft 23 is disposed on the first base 1 through the first rolling bearing 26, the first bearing support 27 and the second rolling bearing 28 which are sleeved on the first rolling bearing 26, and the second bearing support 29 which is sleeved on the second rolling bearing 28, wherein the first rolling bearing 26 and the second rolling bearing 28 are both sleeved on the middle position of the transmission shaft 23, thereby improving the stability of the bearing. The axial directions of the output shaft of the servo motor 1, the torque sensor 22, the transmission shaft 23, the first rolling bearing 26 and the second rolling bearing 28 after the installation are all on the same straight line, so that the precision of the transmission is ensured.
The water tank 3 is arranged on the workbench through a second base 8. A through hole is arranged on one side wall of the water tank 8, and one end of the transmission shaft deviating from the 24 penetrates through the through hole on the side wall of the water tank 3 and extends into the water tank 3. In order to prevent water leakage, a sealing device is arranged between the transmission shaft 24 and the side wall of the water tank 3, and the sealing device can be a sealing gasket or other devices capable of sealing and preventing leakage. A water lubricating bearing device set is arranged on the shaft section of the transmission shaft 23 extending into the water tank 3. In the invention, no supporting device is arranged on the shaft section of the transmission shaft 23 extending into the water tank 3, namely, the shaft section of the transmission shaft 23 extending into the water tank 3 is in a suspended state in the water tank 3, so that the working environment of the open type water lubrication bearing device set can be simulated more truly. The water-lubricated bearing device group comprises a water-lubricated bearing 60 sleeved on the transmission shaft 23 and a bearing cover 61 which covers the water-lubricated bearing 60 and is in interference fit with the water-lubricated bearing 60, a copper sleeve 62 is sleeved on a shaft section of the transmission shaft 23 extending into the water tank 3, and the water-lubricated bearing 60 is in clearance fit with the copper sleeve 62. In order to collect water film thickness and temperature data during the test, an eddy current sensor and a temperature sensor are installed between the water lubricated bearing 60 and the bearing cap 61. In order to collect vibration data during the experiment, a vibration sensor may be mounted on the bearing cap 61.
Referring to fig. 3, the pressurizing device includes a pressurizing bracket 70 disposed on the second base 8, and a pressurizing assembly disposed on the pressurizing bracket 70 and capable of pressurizing the water lubricated bearing device group. The pressurizing assembly comprises a loading rack arranged on the top surface of the pressurizing bracket 70, a loading bolt 72 arranged on the loading rack in a penetrating way, a spring top seat 73 arranged at the bottom of the loading bolt 72, a spring 74 with one end connected with the spring top seat 73, a spring base 75 connected with the other end of the spring 74 and a hollow sleeve 76 limiting the spring 75 inside. The loading stage includes two longitudinal frames 710 disposed on the pressurizing bracket 70 and a transverse bracket 711 connecting the two longitudinal frames 710. The transverse support plate 711 is provided with a threaded hole matched with the loading bolt 72, the loading bolt 72 is connected with the transverse support plate 711 through the threaded hole, the loading bolt 72 is screwed, and the loading bolt 72 moves up and down in the threaded hole. The hollow sleeve 76 is arranged on the bearing cap 61 on the side remote from the spring top 73. For pressurization, the inner diameter of the hollow sleeve 76 is not smaller than the outer diameters of the spring top seat 73 and the spring bottom seat 75, when the spring 74 is in a natural extension state, the spring top seat 73 connected with the loading bolt 72 is positioned at the top of the hollow sleeve 76, and the spring bottom seat 75 is positioned at the bottom of the hollow sleeve 76, so that the spring 74 is limited in the hollow sleeve 76 between the spring top seat 73 and the spring bottom seat 75, and the spring 74 can only move axially and can not move radially. To facilitate taking pressure data, a pressure sensor 77 is provided between the spring mount 75 and the bearing cap. When pressurizing the water lubricated bearing device set, the loading bolt 72 is screwed, the loading bolt 72 moves downwards in the bolt hole to compress the spring 74 through the spring top seat 73, the spring 74 is compressed to transmit the pressure to the bearing cover 61 through the spring bottom seat 73 and the pressure sensor 77, and in the process, the pressure sensor 77 can collect pressure data loaded on the bearing cover 61. To provide a higher stiffness coefficient, the spring of this embodiment may be a double set spring.
When the open water lubrication tail bearing test bed of the ship is used for testing, the water tank 3 is filled with lubricating water, so that the water lubrication bearing device set is completely soaked in the water. Then, the servo motor 20 is started, the servo motor 20 drives the transmission shaft 23 to simulate the operation of the tail shaft, the water lubricated bearing device set is pressurized according to the test requirement to simulate the influence of the bending of the tail shaft on the performance of the water lubricated bearing, corresponding data are collected through the torque sensor 22, the pressure sensor 77, the eddy current sensor, the temperature sensor and the vibration sensor in the test process, so that parameters such as the friction coefficient, the vibration condition, the water film thickness, the friction pair temperature and the like of the water lubricated bearing device set in the dynamic process are obtained, and the performance of the water lubricated bearing can be comprehensively evaluated according to the obtained parameters.
While the foregoing is directed to the preferred embodiment of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (5)
1. The utility model provides a boats and ships open water lubrication tail bearing test bench which characterized in that includes:
a first base disposed on the table;
the driving device is fixed on the first base and comprises a motor, an output shaft of the motor is sequentially connected with a torque sensor and a transmission shaft, the torque sensor is arranged on the first base through a torque sensor support, and the transmission shaft is arranged on the first base through a bearing and a bearing support sleeved on the bearing;
the water tank is arranged on the workbench, one end of the transmission shaft, which is far away from the torque sensor, penetrates through the side wall of the water tank and extends into the water tank, wherein the shaft section of the transmission shaft extending into the water tank is in a suspended state in the water tank, a sealing device is arranged between the transmission shaft and the side wall of the water tank, and the bearing support are positioned outside the water tank;
the water lubrication bearing device group is arranged on a shaft section of the transmission shaft extending into the water tank;
the pressurizing device comprises a pressurizing support arranged on the workbench and a pressurizing assembly arranged on the pressurizing support and capable of pressurizing the water lubrication bearing device group, wherein the pressurizing assembly extends downwards into the water tank, one end of the pressurizing assembly in the water tank is arranged through a pressure sensor, and the water lubrication bearing device group deviates from the end face of the workbench.
2. The open water-lubricated tail bearing test bed for the ship according to claim 1, wherein a copper sleeve is sleeved on a shaft section of the transmission shaft extending into the water tank, and the water-lubricated bearing device set comprises a water-lubricated bearing in clearance fit with the copper sleeve on the transmission shaft and a bearing cover covering the water-lubricated bearing and in interference fit with the water-lubricated bearing.
3. The open water-lubricated tail bearing test bed for ships according to claim 2, wherein an eddy current sensor and a temperature sensor are installed between the water-lubricated bearing and the bearing cover, and a vibration sensor is further arranged on the bearing cover.
4. The open water lubricated tail bearing test bed of claim 1, further comprising a second pedestal through which the water tank is disposed on the table, the pressure bracket also being disposed on the table through the second pedestal.
5. The open water-lubricated tail bearing test bed for the ship according to claim 1, wherein the pressurizing assembly comprises a loading rack arranged on the top surface of the pressurizing bracket, a loading bolt penetrating the loading rack, a spring top seat arranged at the bottom of the loading bolt, a spring with one end connected with the spring top seat, a spring base connected with the other end of the spring, and a hollow sleeve for limiting the spring and the spring base inside, the loading rack comprises two longitudinal rack bodies arranged on the pressurizing bracket and a transverse support plate connected with the two longitudinal rack bodies, the transverse support plate is provided with a threaded hole matched with the loading bolt, the loading bolt is connected with the transverse support plate through the threaded hole, and the end side of the hollow sleeve far away from the spring top seat is arranged on the bearing cover, the inner diameter of the sleeve is not smaller than the outer diameter of the spring top seat, and the spring base is arranged on the bearing cover through the pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911030628.5A CN110887662B (en) | 2019-10-28 | 2019-10-28 | Open type water lubrication tail bearing test bed for ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911030628.5A CN110887662B (en) | 2019-10-28 | 2019-10-28 | Open type water lubrication tail bearing test bed for ship |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110887662A CN110887662A (en) | 2020-03-17 |
| CN110887662B true CN110887662B (en) | 2021-03-16 |
Family
ID=69746568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911030628.5A Active CN110887662B (en) | 2019-10-28 | 2019-10-28 | Open type water lubrication tail bearing test bed for ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110887662B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146878A (en) * | 2020-10-10 | 2020-12-29 | 武汉理工大学 | Water-lubricated bearing friction and wear test platform and method for simulating silt working condition |
| CN112326243B (en) * | 2020-11-05 | 2022-09-06 | 人本股份有限公司 | Bearing performance testing device |
| CN114878790B (en) * | 2021-12-15 | 2024-01-19 | 郑州众城润滑科技有限公司 | Grease centrifugal acceleration performance testing machine for thrust bearing and testing method |
| CN114608825B (en) * | 2022-03-09 | 2023-01-24 | 四川大学 | Water-lubricated rubber bearing friction vibration noise testing device and method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101221554B1 (en) * | 2010-12-06 | 2013-01-14 | 한국원자력연구원 | Endurance test device for water lubrication ball bearing under high axial load |
| CN205620127U (en) * | 2016-02-29 | 2016-10-05 | 华南理工大学 | Thin wall bearing examines test table static load testing arrangement |
| CN107084842B (en) * | 2017-06-14 | 2019-09-03 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Water lubriucated bearing dynamic characteristic parameter test device |
| CN107121286B (en) * | 2017-07-06 | 2019-02-22 | 沈阳鼓风机集团核电泵业有限公司 | A kind of vertical water lubricating radial bearing test device and its test simulation method |
| CN108709743B (en) * | 2018-02-28 | 2020-01-14 | 武汉理工大学 | Water lubrication bearing comprehensive performance experiment table |
| CN108195588A (en) * | 2018-03-16 | 2018-06-22 | 武汉理工大学 | A kind of water lubriucated bearing test platform for simulating different quality operating mode |
| CN108318250B (en) * | 2018-05-03 | 2023-10-31 | 河南科技大学 | Comprehensive testing machine |
-
2019
- 2019-10-28 CN CN201911030628.5A patent/CN110887662B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110887662A (en) | 2020-03-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110887662B (en) | Open type water lubrication tail bearing test bed for ship | |
| CN108106847B (en) | Water lubrication rubber bearing performance test bench and test method thereof | |
| CN107084842B (en) | Water lubriucated bearing dynamic characteristic parameter test device | |
| CN201096619Y (en) | Ship water lubricated stern bearing test device | |
| CN108709743B (en) | Water lubrication bearing comprehensive performance experiment table | |
| CN102980765B (en) | Comprehensive test platform for marine shafting | |
| CN110514338B (en) | High-pressure high-speed reciprocating sealing experiment test platform with floating cylinder body | |
| CN102269654B (en) | Water lubricated bearing and transmission system comprehensive performance testing platform | |
| CN104502271A (en) | Device for measuring friction coefficient of water-lubricated bearing with low speed and heavy load | |
| CN102879189B (en) | Non-metallic O-shaped ring performance testing device | |
| CN109470479B (en) | Friction performance test bed for large-shaft-diameter sliding bearing group with adjustable distance under dynamic load | |
| CN104792532A (en) | Marine thrust bearing equipment test apparatus | |
| CN207937164U (en) | Water lubricated rubber bearing property test platform | |
| CN105445025A (en) | Water-lubricated radial thrust combined sliding bearing performance test bench | |
| CN102749195B (en) | High-speed water bearing performance test device with air seal | |
| CN204405513U (en) | For the device of low-speed heave-load water lubriucated bearing friction coefficient measurement | |
| CN204556258U (en) | Thrust bearing equipment test device peculiar to vessel | |
| CN110987429B (en) | Low-speed helicopter bearing test device | |
| CN219977767U (en) | Spliced railway bearing fault diagnosis test bed | |
| CN205826306U (en) | A kind of polymer surface texture water lubrication tail bearing testing stand | |
| CN116296331B (en) | Verification tool for propeller shaft and verification method thereof | |
| CN112393936A (en) | Full-load dynamic loading device of special propeller | |
| CN114593906A (en) | Reliability test equipment for shafting end face sealing device for ship | |
| CN216717782U (en) | High-efficient marine gear box axle head seal structure durability aassessment test device | |
| CN110470473B (en) | Water lubricated bearing test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |