Intelligent water lubrication dynamic adjustment bearing and bearing support control method
By introducing an intelligent adjustment module and hydraulic system into the water-lubricated bearing, dynamic adjustment of the support force is achieved, solving the problems of uneven wear and insufficient rigidity of large ship bearings, improving the stability and self-adaptability of the system, and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-22
- Publication Date
- 2026-03-10
AI Technical Summary
Existing water-lubricated bearings in the propulsion shafting of large ships have problems such as shaft misalignment and uneven wear, rigid fixation that cannot adapt to load changes, and lack of real-time sensing and control, resulting in insufficient system stability and lifespan.
The system employs intelligent water-lubricated dynamic adjustment bearings. By setting multiple adjustment modules between the bearing housing and the slats, combined with a hydraulic system and sensor modules, it achieves dynamic adjustment and adaptive control of the support force. The system utilizes a flexible sealing diaphragm and hydraulic system to adjust the local support height, and coordinates with a closed-loop control system to adjust the distribution of support force in real time.
It effectively suppresses bearing wear, improves water film stability, enhances self-adaptability, improves equipment intelligence, and extends service life. It is suitable for long shafting structures such as large ships.
Smart Images

Figure CN121630899A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of water-lubricated bearings, in particular to an intelligent water-lubricated dynamically adjustable bearing and a bearing support control method. BACKGROUND
[0002] With the promotion of green environmental protection and high-efficiency energy-saving technology, water-lubricated bearings are more and more widely used in large ship propulsion shafting to replace the traditional oil lubrication mode. The water-lubricated bearing usually relies on the rotation of the shaft neck to form a dynamic water film to realize the support and lubrication of the shaft. However, in the actual operation process, such bearings still have the following outstanding defects and problems: 1. The shafting structure is long, and shafting deviation and eccentric wear are prone to occur. The axis length of the propulsion shafting of a large ship is usually long, and under the conditions of loading, ship deformation or gravity center shift, the shafting as a whole may produce a certain degree of radial deflection or shaft center deviation, so that the originally centered installed bearing cannot adapt to the shaft center change in real time, resulting in that a certain area of the bearing long-term bears excessive load, forming an asymmetric wear or "eccentric wear" phenomenon.
[0003] 2. The bearing is rigidly fixed and lacks self-adaptive ability to load changes. Most of the traditional water-lubricated bearings are rigid structures + fixed slats, and the support stiffness cannot be adjusted during operation, and cannot actively respond to load changes or shaft center displacement. Especially in the case of large load disturbance (such as heavy load, turning, berthing, etc.), the support force distribution is difficult to adjust, which is easy to cause local impact stress concentration.
[0004] 3. Lack of real-time sensing and control mechanism. The existing water-lubricated bearings generally do not have sensors or feedback devices, and cannot obtain the load distribution, support deformation or shaft center position data inside the bearing in real time, and the whole system runs in a "black box" state. The problems caused thereby can only be passively discovered through regular shutdown maintenance, and cannot actively predict or intervene in the bearing wear process.
[0005] In summary, the existing water-lubricated bearings have obvious deficiencies in structural stiffness, adaptability and intelligent degree, and have been difficult to meet the new generation of operation requirements of "high reliability, long life and self-adaptation" of large ship propulsion shafting. Therefore, it is urgent to develop a water-lubricated bearing structure that can dynamically adjust, intelligently sense and autonomously respond to effectively improve the system stability and life. SUMMARY
[0006] In view of the above defects of the prior art, an intelligent water-lubricated dynamically adjustable bearing and a bearing support control method are provided, which realizes the dynamic adjustment of the bearing support force and can effectively inhibit eccentric wear and improve the stability of the water film.
[0007] The technical scheme adopted by the present application to solve the above technical problems is: In a first aspect, the intelligent water-lubricated dynamic adjustment bearing is applied to support of a large propelling shaft system, and comprises a bearing shell, a cylindrical cavity is arranged in the bearing shell, and the large propelling shaft system is arranged in the cylindrical cavity; a plurality of first installation grooves are arranged in the bearing shell in a circumferential direction and an axial direction; a plurality of slats, the plurality of slats are arranged on a surface of the cylindrical cavity of the bearing shell, and a second installation groove matched with the first installation groove is arranged on the slat; the first installation groove and the second installation groove form an arc-shaped cavity; the slat is arranged between an inner wall of the cylindrical cavity and an outer wall of the large propelling shaft system, and a water film lubrication layer is formed between the slat and the outer wall of the large propelling shaft system; an adjustment module, one adjustment module is arranged in each arc-shaped cavity; a sealed cavity is arranged in the adjustment module, and a flexible sealing diaphragm is arranged on a side of the sealed cavity facing the slat; the flexible sealing diaphragm is bulged or retracted in a radial direction of the cylindrical cavity; a hydraulic system, a control system and a sensor module, one sensor module is arranged in each sealed cavity; the hydraulic system is connected with each sealed cavity; the control system is connected with the hydraulic system and each sensor module; and according to data of the sensor module, each sealed cavity is independently controlled to be filled with liquid or to be depressurized, so as to bulge or retract the sealed cavity, and to adjust a local height of the slat.
[0008] According to the above technical solution, the adjustment module is in an arc-shaped structure and matched with the arc-shaped cavity; the adjustment module comprises a module shell and a flexible sealing diaphragm; a sealed groove is arranged in the module shell; the flexible sealing diaphragm is fixed on a side wall of the sealed groove, and the flexible sealing diaphragm and the sealed groove form the sealed cavity; and the sensor module is arranged at a bottom of the sealed cavity.
[0009] According to the above technical solution, the module shell of a single adjustment module is provided with two sealed grooves; a flexible sealing diaphragm matched with each sealed groove is fixedly arranged in each sealed groove; a support part is arranged between the two sealed grooves; the support part is integrally arranged with the module shell; a communication hole for communicating the two sealed grooves is arranged on the support part; and the slat is supported by the support part.
[0010] According to the above technical solution, the flexible diaphragm is made of a high-elasticity corrosion-resistant material, and a slight deformation of the flexible diaphragm is caused in response to a pressure of the sealed cavity, and the slat is pushed to change a support height.
[0011] According to the above technical solution, the sensor module comprises a load sensor, a pressure sensor and a displacement sensor.
[0012] According to the above technical solution, the hydraulic system comprises a main circuit and a plurality of branches connected in parallel on the main circuit; a hydraulic pump is arranged on the main circuit; a valve group is arranged on each branch; and each branch is connected to the sealed cavity of one adjustment module.
[0013] According to the technical scheme, the control system is an integrated control unit, comprising a signal acquisition module, a control logic module and an instruction execution module.
[0014] According to the technical scheme, the bearing shell is composed of an upper shell and a lower shell, the upper and lower shells are connected by bolts, and the connected bearing shell is a whole cylindrical structure, and the cylindrical cavity is located in the cylindrical structure.
[0015] According to the technical scheme, the first mounting groove is arranged on the inner wall of the cylindrical cavity of the bearing shell in the circumferential direction and the axial direction.
[0016] In the second aspect, a bearing support control method is applied to the intelligent water-lubricated dynamic adjustment bearing as described above, and the method comprises the following steps: The control system acquires the load, pressure and displacement information of each adjustment module in real time; If the load of a certain area adjustment module abnormally increases, the control system adjusts the liquid pressure in the closed cavity in the area adjustment module through the hydraulic system, so that the flexible sealing membrane slightly decreases, the local support stiffness decreases, and the liquid pressure in the closed cavity in the area adjustment module increases; so that the liquid pressure in the adjustment module is maintained within a certain range; If the pressure of the closed cavity is out of limit or abnormal, the pressure relief channel intervenes in time to ensure the safety of the structure; the adjustment is continuously adjusted during operation to ensure that the flexible sealing membrane is stable, the wear is uniform, and the eccentric load is reduced; When the liquid pressure of the adjustment module is in a suitable range, if the eccentric wear trend or shaft center deviation is monitored, the system coordinates the liquid pressure in multiple adjustment modules to realize shaft center adjustment.
[0017] The present application has the following advantages: By arranging a plurality of adjustment modules between the bearing shell and the board in the circumferential direction and the axial direction of the bearing shell, the board is supported and the local support height is adjusted. And a corresponding sensor module is arranged in each adjustment module, the hydraulic system and the control system are connected with each adjustment module and the corresponding sensor module, and an intelligent support system with self-sensing and active adjustment capability is constructed.
[0018] Based on the intelligent water-lubricated dynamic adjustment bearing: Firstly, the dynamic adjustment of the bearing support force is realized, the variable-thickness hydraulic adjustment module is arranged between the board and the bearing shell, and the closed-loop control system is matched, so that the local support force can be dynamically adjusted according to the load distribution, and the active support adjustment function is realized.
[0019] Secondly, effectively alleviate the bearing eccentric wear problem, multiple adjustment modules are arranged in the circumferential direction, and the load imbalance caused by the shaft neck eccentricity or shafting deflection can be compensated through coordinated control, so that the bearing eccentric wear risk is effectively reduced, and the service life is improved.
[0020] Thirdly, the water film establishment ability and lubrication stability are enhanced. In the unstable working condition such as low speed and heavy load, the adjustment module can appropriately increase the support height or rigidity to assist in establishing a stable water film lubrication layer, and reduce the starting wear and dry friction.
[0021] Fourthly, the modular design is convenient for installation and maintenance. The adjustment module is located between the plate strip and the shell, and the structure is independent and can be replaced in units, so that the installation and reconstruction are convenient, and the intelligent upgrading of the new bearing system or the existing structure is suitable.
[0022] Fifthly, the integrated sensing function improves the intelligent level of the equipment. The internal sensor of the adjustment module can monitor the running state of the load, pressure and the like, forms a sensing-control-execution closed loop, and has self-adaptive and self-diagnostic capabilities.
[0023] In summary, by arranging a plurality of independently controlled adjustment modules between the bearing shell and the plate strip, and combining the control feedback of the hydraulic system, the control system and the sensor module, the dynamic adjustment of the bearing support force is realized, the eccentric wear can be effectively inhibited, the water film stability can be improved, and the application is especially suitable for long shaft structure scenes such as large ships, and has the advantages of reasonable structure, flexible response, convenient installation and the like.
[0024] The above description is only a summary of the technical scheme of the present application. In order to more clearly understand the technical means of the present application and can be implemented according to the content of the specification, the following will be described in detail with the preferred embodiments of the present application and the accompanying drawings. The specific embodiments of the present application are given in detail by the following examples and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS
[0025] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation on the present application.
[0026] Fig. 1 is a structural schematic diagram of the embodiment provided by the present application; Fig. 2 is a structural schematic diagram of the adjustment module of the embodiment provided by the present application; In the figure, 1 is a bearing shell, 1-1 is an upper shell, 1-2 is a lower shell, 2 is a plate strip, 3 is an adjustment module, 3-1 is a closed cavity, 3-2 is a flexible sealing diaphragm, 3-3 is a module shell, 4 is a hydraulic system, 4-1 is a main circuit, 4-2 is a branch, 4-3 is a hydraulic pump, 4-4 is a valve group, 5 is a control system, 6 is a sensor module, and 7 is a stop ring. DETAILED DESCRIPTION
[0027] The principles and advantages of the present application will be described with reference to the attached drawings, of which: Figs. 1-2 The principles and advantages of the present application will be described with reference to the attached drawings, of which:
[0028] It should be noted that when a member is referred to as being "on" another member, it can be directly on the other member or intervening members can also be present. Where, for example, a member is referred to as being "connected" to another member, it can be directly connected to the other member or intervening members can be present. Where an element is referred to as being "positioned on" another element, it can be directly on the other element or intervening elements can also be present. The terms "vertical", "horizontal", "left", "right" and similar expressions are used only for the purpose of illustration.
[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "including" and "having" are intended to be inclusive and mean that there can be additional
[0030] Example 1 Referring to Figs. 1-2 As shown in the drawings, the intelligent water-lubricated dynamic adjustment bearing is provided by the present application.
[0031] It is applied to the support of large-scale propulsion shaft system, which comprises A bearing shell 1 is provided with a cylindrical cavity, and the large-scale propulsion shaft system is arranged in the cylindrical cavity. A plurality of first mounting grooves are arranged in the bearing shell along the circumferential direction and the axial direction. A plurality of slats 2 are arranged on the surface of the cylindrical cavity of the bearing shell, and a second mounting groove matched with the first mounting groove is arranged on the slat. The first mounting groove and the second mounting groove form an arc-shaped cavity. The slat is arranged between the inner wall of the cylindrical cavity and the outer wall of the large-scale propulsion shaft system, and a water film lubrication layer is formed between the slat and the outer wall of the large-scale propulsion shaft system. An adjustment module 3 is arranged in each arc-shaped cavity. A sealed cavity 3-1 is arranged in the adjustment module. A flexible sealing diaphragm 3-2 is arranged on the side of the sealed cavity facing the slat. The flexible sealing diaphragm protrudes or retracts along the radial direction of the cylindrical cavity. The hydraulic system 4, the control system 5 and the sensor module 6 are provided with a sensor module in each closed cavity, the hydraulic system is connected with each closed cavity, the control system is connected with the hydraulic system and each sensor module, and the closed cavity is independently controlled according to the sensor module data, liquid is introduced or pressure is released, the closed cavity is inflated or retracted, the local height of the board is adjusted, and the purpose is achieved.
[0032] The flexible sealing diaphragm is located above the closed cavity and is made of a high-elasticity corrosion-resistant material, slightly deforms in response to the cavity pressure, and pushes the board to change the support height. By changing the pressure in the closed cavity, the flexible sealing diaphragm is inflated or retracted in the closed cavity, and the thickness adjustment of the adjustment module is achieved.
[0033] The intelligent water-lubricated dynamic adjustment bearing disclosed by the application is characterized in that a plurality of adjustment modules are uniformly arranged along the circumference and the axis of the bearing shell between the bearing shell and the board, are used for supporting the board and adjusting the local support height of the board, and a corresponding sensor module is arranged in each adjustment module. The hydraulic system and the control system are connected with each adjustment module and the corresponding sensor module, and an intelligent support system with self-sensing and active adjustment capability is constructed. The working principle of the system is as follows: 1. During the operation of the bearing, each adjustment module is located between the bearing shell and the board and serves as a variable support base of the board.
[0034] 2. When the shaft rotates, the sensor unit collects the local load, hydraulic cavity pressure and diaphragm displacement and other operating parameters of each circumferential region of the bearing in real time, and sends the data to the control system.
[0035] 3. The control system determines whether there are problems such as unbalanced load, shaft offset or uneven water film according to the force condition of each region and a preset algorithm, and automatically calculates the required support force distribution.
[0036] 4. The control system applies different pressures to the cavities of each adjustment module through a proportional electromagnetic valve group, so that the thickness of the adjustment module changes slightly, the local board above is lifted or falls, and the support state of the shaft neck is changed.
[0037] 5. Through the coordinated adjustment of the plurality of adjustment modules, the bearing realizes dynamic shaft center adjustment and local flexible support during operation, and effectively compensates for abnormal contact and eccentric wear caused by unbalanced load, shaft deflection or low-speed impact.
[0038] 6. When the system detects that the local pressure abnormally rises, the control system can automatically open the pressure relief channel to release the pressure inside the cavity and ensure the safety of the diaphragm and the shell.
[0039] The system can maintain stable supporting force in start-stop, low-speed operation, load mutation and other conditions, realize continuous water film lubrication, and improve the running stability and service life of the bearing.
[0040] Local supporting force adjustment can be realized according to the operation state of the shaft system, so as to slow down the eccentric wear and maintain the water film lubrication state.
[0041] The adjusting module is in an arc structure and matches the arc-shaped cavity; the adjusting module comprises a module shell 3-3 and a flexible sealing diaphragm, a sealing groove is arranged in the module shell, the flexible sealing diaphragm is fixed on the side wall of the sealing groove by adhesion, the module shell is used for bearing axial load and fixing the flexible sealing diaphragm, and the flexible sealing diaphragm and the sealing groove form the sealing cavity; the sensor module is arranged at the bottom of the sealing cavity.
[0042] The flexible sealing diaphragm is arranged above the closed cavity and is made of a high-elasticity corrosion-resistant material, and a slight deformation occurs in response to the cavity pressure, so as to push the board to change the supporting height. By changing the pressure in the sealing cavity, the flexible sealing diaphragm is inflated and protrudes or retracts into the sealing cavity, so as to adjust the thickness of the adjusting module.
[0043] Embodiment 2 On the basis of embodiment 1, in order to improve the support of the flexible sealing diaphragm at the sealing cavity, the module shell of a single adjusting module is provided with two sealing grooves, a flexible sealing diaphragm matched with each sealing groove is fixedly arranged in each sealing groove; a support part is arranged between the two sealing grooves, the support part and the module shell are integrally arranged; a communication hole for communicating the two sealing grooves is arranged on the support part, the support part supports the board, and the support part is used for limiting deformation and bearing axial load.
[0044] In embodiments 1-2, preferably, the flexible diaphragm is made of a high-elasticity corrosion-resistant material, and a slight deformation occurs in response to the cavity pressure, so as to push the board to change the supporting height.
[0045] In embodiments 1-2, the sensor module comprises a load sensor, a pressure sensor and a displacement sensor. The sensor module is used for collecting load, cavity pressure and diaphragm displacement information and feeding back to the control system through a data bus, the control system dynamically adjusts the pressure in the corresponding adjusting module according to the working condition parameters fed back by the sensors of each adjusting module, and forms a controllable flexible support array.
[0046] In embodiments 1-2, the hydraulic system comprises a main circuit 4-1 and a plurality of branch circuits 4-2 connected in parallel on the main circuit, a hydraulic pump 4-3 is arranged on the main circuit, a valve group 4-4 is arranged on each branch circuit, and each branch circuit is connected to the sealing cavity of one adjusting module.
[0047] The hydraulic pump, the valve group and the pipeline network (main circuit and branch) connecting each module together jointly constitute a hydraulic system, the hydraulic pump is used to provide system working medium, has certain flow and pressure regulation capacity; the valve group is used for controlling the liquid inlet and pressure relief of the sealed cavity of the corresponding adjustment module, supporting independent control of the control system; when the cavity pressure is abnormal, the valve group is turned on to relieve the pressure path, ensuring the safety of the flexible sealing diaphragm and the adjustment module.
[0048] In embodiments 1-2, the control system is an integrated control unit, including a signal acquisition module, a control logic module and an instruction execution module; it has the following functions: real-time acquisition of sensor module data, and judgment of the load state of each adjustment module; judging whether there is a problem such as unbalanced load or shafting deviation according to load distribution or flexible sealing diaphragm displacement analysis; issuing instructions to control the opening of the valve group, adjusting the pressure in the sealed cavity, and dynamically changing the support height; closed-loop control of the system to maintain the stability of the shafting position and optimize the support force distribution.
[0049] In embodiments 1-2, the bearing shell is composed of an upper shell 1-1 and a lower shell 1-2, and the upper and lower shells are connected by bolts. The connected bearing shell is a whole cylindrical structure, and the cylindrical cavity is located in the cylindrical structure. The bearing shell is made of copper, which can withstand the radial load of the large propulsion shafting and slow down the corrosion of seawater. A stop ring 7 is also provided at the end of the bearing shell for limiting the batten.
[0050] In embodiments 1-2, the first mounting groove is arranged on the inner wall of the cylindrical cavity of the bearing shell in the circumferential direction and the axial direction.
[0051] During the operation of the ship shafting, the hydraulic pump provides stable water supply, and a certain pressure is pre-charged in the sealed cavity of the adjustment module in the initial stage. The control system acquires the load, pressure and displacement information of each adjustment module in real time. If the load in a certain area abnormally increases, the liquid pressure in the sealed cavity of the adjustment module in the area is adjusted according to the control logic, so that the flexible sealing diaphragm is slightly lowered, the local support stiffness is reduced, and the liquid pressure in the sealed cavity of the adjustment module in the load reduction area is increased, so that the liquid pressure in the adjustment module is maintained within the set range. If the sealed cavity pressure is out of limit or abnormal, the pressure relief channel intervenes in time to ensure the safety of the structure; continuous adjustment during operation ensures the stability of the flexible sealing diaphragm, uniform wear and reduction of unbalanced load.
[0052] When the liquid pressure in the adjustment module is in a suitable range; if the unbalanced wear trend or shaft center deviation is monitored, the system coordinates the liquid pressure in multiple adjustment modules to adjust the shaft center.
[0053] Embodiment 3 The application also provides a bearing support control method, which is applied to the intelligent water-lubricated dynamic adjustment bearing as shown in any of the above embodiments. The method comprises: In the process of ship shafting operation, the hydraulic pump provides stable water supply, and a certain pressure is pre-charged in the sealed cavity of the adjustment module in the initial stage; the control system collects the load, pressure and displacement information of each adjustment module in real time.
[0054] If the load of a certain area abnormally increases, the liquid pressure in the sealed cavity of the adjustment module in the area is adjusted according to the control logic, so that the flexible sealing diaphragm slightly decreases and the local support stiffness decreases, and at the same time the liquid pressure in the sealed cavity of the load reduction area adjustment module is increased, so that the liquid pressure in the adjustment module is maintained within the set range. If the sealed cavity pressure is out of limit or abnormal, the pressure relief channel intervenes in time to ensure the safety of the structure; the operation is continuously adjusted to ensure that the flexible sealing diaphragm is stable, the wear is uniform, and the eccentric load is reduced.
[0055] When the liquid pressure of the adjustment module is in the appropriate range; if the eccentric wear trend or shaft center deviation is monitored, the system coordinates the liquid pressure in multiple adjustment modules to realize shaft center adjustment.
[0056] The above is only a preferred embodiment of the present application, and does not limit the present application in any form; any ordinary technical personnel in the industry can smoothly implement the present application according to the drawings and the above description; however, any equivalent changes, modifications and evolution of the above-mentioned technical content within the scope of the technical solution of the present application are equivalent embodiments of the present application; at the same time, any equivalent changes, modifications and evolution of the above-mentioned technical content within the scope of the technical solution of the present application are equivalent embodiments of the present application; at the same time, any equivalent changes, modifications and evolution of the above-mentioned technical content within the scope of the technical solution of the present application are equivalent embodiments of the present application.
Claims
1. An intelligent water-lubricated dynamically adjusted bearing, characterized by: The application is applied to the support of large propulsion shaft system, and comprises A bearing shell is internally provided with a cylindrical cavity, and the large propulsion shaft system is arranged in the cylindrical cavity; a plurality of first mounting grooves are arranged in the bearing shell in the circumferential direction and the axial direction; A plurality of boards are arranged on the surface of the cylindrical cavity of the bearing shell, and the boards are provided with second mounting grooves matched with the first mounting grooves; the first mounting grooves and the second mounting grooves form arc-shaped cavities; the boards are arranged between the inner wall of the cylindrical cavity and the outer wall of the large propulsion shaft system, and a water film lubricating layer is formed between the boards and the outer wall of the large propulsion shaft system; An adjusting module is arranged in each arc-shaped cavity; a sealed cavity is arranged in the adjusting module; the side of the sealed cavity facing the board is a flexible sealing diaphragm; the flexible sealing diaphragm is protruded or retracted along the radial direction of the cylindrical cavity; A hydraulic system, a control system and a sensor module are arranged in each sealed cavity; the hydraulic system is connected with each sealed cavity; the control system is connected with the hydraulic system and each sensor module; the hydraulic system independently controls the liquid inlet or pressure relief of each sealed cavity according to the data of the sensor module, so as to protrude or retract the sealed cavity, adjust the local height of the board and achieve the purpose of adjusting the local height of the board.
2. The intelligent water-lubricated dynamic adjustment bearing of claim 1, wherein: The adjusting module is in an arc-shaped structure and matched with the arc-shaped cavity; the adjusting module comprises a module shell and a flexible sealing diaphragm; a sealing groove is arranged in the module shell; the flexible sealing diaphragm is fixed on the side wall of the sealing groove; and the flexible sealing diaphragm and the sealing groove form the sealed cavity; the sensor module is arranged at the bottom of the sealed cavity.
3. The intelligent water-lubricated dynamic adjustment bearing of claim 2, wherein: The module shell of a single adjusting module is provided with two sealing grooves; a flexible sealing diaphragm matched with each sealing groove is fixed in each sealing groove; a support part is arranged between the two sealing grooves; the support part is integrally arranged with the module shell; a communication hole for communicating the two sealing grooves is arranged on the support part; and the board is supported by the support part.
4. The intelligent water-lubricated dynamic adjustment bearing according to any one of claims 1-3, characterized in that: The flexible diaphragm is made of a high-elasticity corrosion-resistant material, and is slightly deformed in response to the pressure of the sealed cavity and pushes the board to change the support height.
5. The intelligent water-lubricated dynamic adjustment bearing of claim 1, wherein: The sensor module comprises a load sensor, a pressure sensor and a displacement sensor.
6. The intelligent water-lubricated dynamic adjustment bearing of claim 1, wherein: The hydraulic system comprises a main circuit and a plurality of branches connected in parallel with the main circuit; a hydraulic pump is arranged on the main circuit; a valve group is arranged on each branch; and each branch is connected with the sealed cavity of one adjusting module.
7. The intelligent water-lubricated dynamic adjustment bearing of claim 1, wherein: The control system is an integrated control unit, which comprises a signal acquisition module, a control logic module and an instruction execution module.
8. The intelligent water-lubricated dynamic adjustment bearing of claim 2, wherein: The bearing shell comprises an upper shell and a lower shell; the upper shell and the lower shell are connected by bolts; the connected bearing shell is in an integral cylindrical structure; and the cylindrical cavity is arranged in the cylindrical structure.
9. The intelligent water-lubricated dynamic adjustment bearing of claim 8, wherein: The first mounting grooves are arranged on the inner wall of the cylindrical cavity of the bearing shell in the circumferential direction and the axial direction.
10. A bearing support control method, characterized by: The method is applied to the intelligent water-lubricated dynamic adjusting bearing shown in any one of claims 1-9, and the method comprises the following steps: The control system acquires the load, pressure and displacement information of each adjusting module in real time; If the load of a certain area adjustment module abnormally increases, the control system adjusts the liquid pressure in the closed cavity in the area adjustment module through the hydraulic system, so that the flexible sealing diaphragm slightly decreases, the local support stiffness decreases, the load decreases, and the liquid pressure in the closed cavity in the area adjustment module increases; so that the liquid pressure in the adjustment module is maintained within a set range; If the pressure in the closed cavity is out of limit or abnormally operates, the pressure relief channel intervenes in time to ensure the safety of the structure; the adjustment is continuously made during operation to ensure that the flexible sealing diaphragm is stable, the wear is uniform, and the eccentric load is reduced; When the liquid pressure in the adjustment module is in a suitable range, if the eccentric wear trend or the shaft center deviation is monitored, the system coordinates the liquid pressures in multiple adjustment modules to realize shaft center adjustment.
Citation Information
Patent Citations
Rigidity-adjustable water lubricating stem bearing
CN107448472A
Variable-rigidity intelligent water-lubricated bearing and power transmission system thereof
CN112228449A
Bearing for ship propeller shaft
CN114630969A
Water lubricated bearing and condensate pump
CN115263797A
Static and dynamic pressure synergetic water lubrication stern bearing for ship
CN215720218U