CN112046721A - Automatic displacement compensation thrust bearing - Google Patents
Automatic displacement compensation thrust bearing Download PDFInfo
- Publication number
- CN112046721A CN112046721A CN202011006855.7A CN202011006855A CN112046721A CN 112046721 A CN112046721 A CN 112046721A CN 202011006855 A CN202011006855 A CN 202011006855A CN 112046721 A CN112046721 A CN 112046721A
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- thrust
- displacement
- end plate
- oil
- bearing
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 116
- 239000003921 oil Substances 0.000 claims abstract description 86
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 17
- 238000013016 damping Methods 0.000 claims abstract description 12
- 230000003068 static effect Effects 0.000 claims description 13
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 description 9
- 230000008859 change Effects 0.000 description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/32—Other parts
- B63H23/321—Bearings or seals specially adapted for propeller shafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/32—Other parts
- B63H23/321—Bearings or seals specially adapted for propeller shafts
- B63H2023/325—Thrust bearings, i.e. axial bearings for propeller shafts
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Support Of The Bearing (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses an automatic displacement compensation thrust bearing, which comprises a thrust shaft and a thrust disc, wherein one side of the thrust disc is slidably supported on the inner side surface of a left end plate, the other side surface of the thrust disc is slidably supported with a thrust block, a displacement compensation piston is slidably arranged in a bearing shell, and a compensation damping spring is supported between the thrust block and the inner end of the displacement compensation piston; the thrust block is provided with a thrust block displacement sensor, and the displacement compensation piston is provided with a piston displacement sensor; an oil outlet of the hydraulic pump is communicated to a pressure oil port P of the hydraulic reversing valve, an A port of the hydraulic reversing valve is communicated to a hydraulic oil cavity between the displacement compensation piston and the right end plate, and an oil return port T of the hydraulic reversing valve is connected to an oil tank; the piston displacement sensor and the thrust block displacement sensor are electrically connected with the automatic controller, and the automatic controller is electrically connected with the hydraulic reversing valve. The automatic displacement compensation thrust bearing not only can automatically compensate the axial displacement of the thrust shaft, but also can effectively reduce the structural vibration of the bearing.
Description
Technical Field
The invention relates to a thrust bearing of a ship main shaft propulsion system, in particular to a thrust bearing device capable of automatically compensating axial displacement of a thrust shaft.
Background
The thrust bearing is a key device of a ship shafting, and has the main functions of transmitting the driving power of the power device to the propeller and transmitting the thrust or the pulling force generated by the propeller to a ship body so as to enable the ship to advance or retreat.
When a ship moves forward, the propeller rotates in one direction to generate a propelling force to act on the thrust shaft, so that the static displacement generated by the thrust shaft along a balance position in the axial direction is increased, particularly the draught depth or the submarine depth of the ship is increased, the increase of the external water pressure at the position where the propeller is located can generate larger hydrostatic thrust towards the cabin to the thrust shaft, the thrust shaft is pushed inwards to displace, and the phenomenon of shaft fleeing is easily caused; when the ship moves forwards or backwards, the forward and reverse rotation of the propeller can also cause the thrust shaft to push inwards or pull outwards axially. The axial displacement caused by the increase or change of the axial force of the propulsion system can bring great influence on the safe and reliable operation of the ship propulsion system; firstly, in a stern shaft sealing system, the change of an axial balance position can cause the deterioration of the sealing performance, especially, the axial displacement can cause the excessive compression of an end face sealing surface, the abrasion of the sealing surface is increased, the service life is reduced, or the end face sealing gap is enlarged, the sealing performance is reduced, and the leakage rate is increased; the change of the axial balance position can also cause the position of the propeller and the propeller relative to the cabin body to change, the running safety of the propeller is reduced, and the propelling efficiency is lowered; eliminating or effectively compensating the axial displacement of the thrust shaft is particularly important for improving the propelling performance of the ship.
The axial displacement can also cause the change of the performance of a supporting structure and a shock absorption and noise reduction structure of a propulsion system, the propeller can generate pulsating axial thrust under the action of a non-uniform flow field at the stern during operation, the pulsating thrust is transmitted to a ship shell through a propulsion shafting, a thrust bearing, a bearing supporting structure and a bearing base, the thrust bearing system plays a role of a vibration transmission carrier in the process, particularly, the thrust bearing adopting a rigid supporting structure inevitably transmits structural vibration noise caused by axial force to the ship shell, and the excitation of the shell structure is caused to reduce the riding comfort of the ship and the concealment of military ship operation.
At present, a thrust bearing on a ship or a boat mostly adopts a hydraulic dynamic pressure thrust bearing or a rolling body thrust bearing, and the axial displacement of a thrust shaft cannot be compensated or adjusted no matter the hydraulic dynamic pressure thrust bearing or the rolling thrust bearing, and because the thrust bearing in the ship bears huge axial thrust, the axial displacement or axial movement of the thrust shaft cannot be avoided, so that the safe and reliable operation of a ship propulsion system is directly influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an automatic displacement compensation thrust bearing which can automatically compensate the axial displacement of a thrust shaft and effectively reduce the structural vibration.
In order to solve the technical problem, the automatic displacement compensation thrust bearing comprises a thrust shaft and a thrust disc fixedly arranged on the thrust shaft, wherein the thrust shaft is rotatably supported on a left end plate and a right end plate, the left end plate and the right end plate are respectively and fixedly arranged at two ends of a bearing shell, and a radial sliding bearing is also supported on the thrust shaft; one side of the thrust disc is slidably supported on the inner side surface of the left end plate, and the other side surface of the thrust disc is slidably supported with a thrust block which is sleeved on the thrust shaft; a displacement compensation piston is arranged in the bearing shell in a sliding mode, a hydraulic oil cavity is located between the outer end of the displacement compensation piston and the inner side of the right end plate, and a compensation damping spring is supported between the thrust block and the inner end of the displacement compensation piston; the thrust block is provided with a thrust block displacement sensor, and the displacement compensation piston is provided with a piston displacement sensor; an oil outlet of the hydraulic pump is communicated to a pressure oil port P of the hydraulic reversing valve, an A port of the hydraulic reversing valve is communicated to a hydraulic oil cavity between the displacement compensation piston and the right end plate, and an oil return port T of the hydraulic reversing valve is connected to an oil tank; two side surfaces of the thrust disc are respectively communicated with a pressure oil gap between the left end plate and the thrust block and an oil outlet of the hydraulic pump; the piston displacement sensor and the thrust block displacement sensor are electrically connected with an automatic controller, and the automatic controller is electrically connected with the hydraulic reversing valve.
In the technical scheme, the displacement compensation piston is arranged in the bearing shell in a sliding manner, and the compensation damping spring is supported between the displacement compensation piston and the thrust block, so that when the thrust shaft displaces under the action of axial external force to deviate from a balance position, the displacement compensation piston applies reverse thrust to the thrust shaft through the thrust block and the thrust disc under the driving of a hydraulic system to counteract the deviation acting force of the external force to the thrust shaft, so that the thrust shaft keeps the original balance position, and the deviation displacement is compensated; when the hydraulic reversing valve is in the position shown in the figure, the hydraulic oil cavity at the top end of the displacement compensation piston is in a closed state, and the thrust shaft is in a balance position; when the thrust shaft is subjected to internal pushing external force, hydraulic pump pressure oil enters a hydraulic oil cavity at the piston end through a hydraulic reversing valve, so that the displacement compensation piston applies reverse external thrust to the thrust shaft; the effects of force balance and displacement compensation are achieved; when the thrust shaft is subjected to external tension, the pressure oil in the hydraulic oil cavity at the piston end is released through the hydraulic reversing valve, so that the thrust shaft returns to the balance position. The thrust block displacement sensor is arranged on the thrust block, and the piston displacement sensor is arranged on the displacement compensation piston, so that the axial displacement of the thrust shaft and the compensation displacement of the piston can be effectively corrected and verified by adopting double-sensor monitoring, and the displacement precision and the compensation precision of the axial displacement of the thrust shaft are effectively improved; and the displacement signal of the displacement sensor controls the hydraulic reversing valve to adjust the position of the piston in time through the calculation and analysis of the automatic controller so as to ensure that the thrust shaft does not deviate, and the displacement sensor, the automatic controller and the hydraulic reversing valve form a closed-loop control system for the displacement of the thrust shaft. And because the compensation damping spring is supported between the thrust block and the displacement compensation piston, the vibration caused by the change of the axial force of the thrust shaft can be effectively absorbed, and meanwhile, the transmission of structural vibration noise generated by the pulsation of the axial force to a ship shell is effectively inhibited under the action of additional viscous damping generated by hydraulic oil. The two side surfaces of the thrust disc are respectively communicated with a pressure oil gap between the left end plate and the thrust block to an oil outlet of the hydraulic pump, so that a static pressure sliding bearing is formed, and the static pressure sliding bearing has a stable pressure oil film, strong bearing capacity, high reliability and long service life.
In a further embodiment of the present invention, the outer side surface of the displacement compensation piston is sealingly and slidably supported on the inner cavity surface of the bearing housing, the inner hole surface of the displacement compensation piston is sealingly and slidably supported on the convex cylindrical surface of the right end plate, and the inner side surface and the convex cylindrical surface of the right end surface, the outer end surface of the displacement compensation piston and the inner cavity surface of the bearing housing enclose a hydraulic oil chamber. This structure can generate a force in the thrust shaft axial direction.
In a further embodiment of the present invention, a thrust pad support is fixedly connected to a side surface of the thrust pad, and the thrust pad support is axially movably supported on the convex cylindrical surface of the right end plate; and a plurality of compensation damping springs are circumferentially supported between the thrust block support and the inner end of the displacement compensation piston. Is convenient for manufacturing and installation.
In a preferred embodiment of the present invention, the radial sliding bearing is installed between the right end plate and the thrust shaft. Has stable warp supporting function.
In a further embodiment of the present invention, an annular oil groove is disposed on an inner side surface of the left end plate, a pressure oil gap is defined by the annular oil groove and a corresponding side surface of the thrust disc, and an oil outlet of the hydraulic pump is sequentially communicated to the pressure oil gap through a corresponding one-way valve, a pressure regulating valve and a left static pressure oil nozzle. The thrust block is provided with an annular oil groove, the annular oil groove and the corresponding side face of the thrust disc form a pressure oil gap in an enclosing mode, and the oil outlet of the hydraulic pump sequentially passes through the corresponding one-way valve, the pressure regulating valve and the right static pressure oil nozzle to be led to the pressure oil gap. A stable pressure oil film can be formed.
In a preferred embodiment of the present invention, the piston displacement sensor is mounted on the bearing housing, and the piston displacement sensor corresponds to the position of the displacement compensation piston; the thrust piece displacement sensor is arranged on the right end plate and corresponds to the position of the thrust piece. The accuracy of monitoring data can be effectively improved.
In a preferred embodiment of the present invention, the hydraulic directional valve is a three-position three-way electromagnetic directional valve. The pressurization, pressure maintaining and pressure relief of the hydraulic oil cavity at the piston end can be realized.
In a preferred embodiment of the present invention, an oil outlet of the hydraulic pump is connected in parallel with a relief valve and an accumulator. The hydraulic stability of the hydraulic circuit is effectively ensured.
In a preferred embodiment of the invention, an oil return nozzle is mounted on the bearing housing and/or the left end plate, and the oil return nozzle leads to an oil tank. And the backflow of the hydrostatic bearing hydraulic oil on the two sides of the thrust disc is ensured.
Drawings
The automatic displacement compensation thrust bearing of the present invention will be further described with reference to the accompanying drawings and the following detailed description.
FIG. 1 is a schematic structural view of an embodiment of an automatic displacement compensating thrust bearing of the present invention;
fig. 2 is an enlarged view of a thrust bearing structure in the embodiment shown in fig. 1.
In the figure, 1-shaft coupling, 2-thrust shaft, 3-radial sliding bearing, 4-right end plate, 5-displacement compensation piston, 6-compensation damping spring, 7-bearing shell, 8-oil return nozzle, 9-right static pressure oil nozzle, 10-left end plate, 11-left static pressure oil nozzle, 12-thrust disc, 13-piston displacement sensor, 14-thrust block, 15-thrust block support, 16-piston pressure oil nozzle, 17-thrust block displacement sensor, 18-pressure regulating valve, 19-one-way valve, 20-automatic controller, 21-energy accumulator, 22-hydraulic reversing valve, 23-pressure gauge, 24-overflow valve, 25-hydraulic pump and 26-oil tank.
Detailed Description
As shown in fig. 1 and 2, in the automatic displacement compensation thrust bearing, a thrust disc 12 in the shape of a convex disc is arranged on a thrust shaft 2, and the thrust shaft 2 and the thrust disc 12 are connected into a whole; couplings 1 are attached to both ends of the thrust shaft 2, and the couplings 1 are rigid couplings. A left end plate 10 and a right end plate 4 are rotatably supported on the thrust shafts 2 on the left side and the right side of the thrust disc 12 through rolling bearings, a bearing shell 7 which is of a cylindrical structure is fixedly installed between the left end plate 10 and the right end plate 4, the thrust shafts 2 are located on the center line positions of the bearing shell 7, the left end plate 10 and the right end plate 4, and sealing parts are arranged on the installation surfaces of the left end plate 10, the right end plate 4 and the two ends of the bearing shell 7.
The displacement compensation piston 5 is arranged in the bearing shell 7 in a sliding mode, a central through hole is formed in the center of the displacement compensation piston 5, the outer side face of the displacement compensation piston 5 is a cylindrical face, a sealing ring is arranged on the cylindrical face, and the outer side face of the displacement compensation piston 5 is supported on the inner cavity face of the bearing shell 7 in a sliding mode through the sealing ring. The right end plate 4 is provided with a cylindrical boss at the central position of the circular base plate; the inner hole surface of the displacement compensation piston 5 is slidably supported on the convex cylindrical surface outside the cylindrical boss of the right end plate 4 through a corresponding seal. A radial sliding bearing 3 is arranged between the inner hole surface of the cylindrical boss of the right end plate 4 and the thrust shaft 2, the radial sliding bearing 3 comprises a sliding sleeve sleeved on the push shaft 2 and a bearing bush arranged on the right end plate 4, and an annular hydraulic oil cavity is enclosed by the inner side surface and the convex column surface of the right end plate 4, the outer end surface of the displacement compensation piston 5 and the inner hole surface of the bearing shell 7.
One side of the thrust disc 12 is slidably supported on the inner side surface of the left end plate 10, the other side surface of the thrust disc 12 is slidably supported with a thrust block 14, the thrust block 14 is sleeved on the thrust shaft 2 in a hollow way, a thrust block support 15 is fixedly connected to the side surface of the thrust block 14, and the thrust block support 15 can be axially movably supported on the convex cylindrical surface of the right end plate 4, so that the thrust block 14 and the thrust block support 15 which are fixedly connected with each other can only axially move along the axial center direction of the thrust shaft 2.
The inner side surface of the left end plate 10 is provided with an annular oil groove, the inner side surface of the left end plate 10 and the corresponding side surface of the thrust disc 12 are relative sliding surfaces, and the annular oil groove on the left end plate 10 and the corresponding side surface of the thrust disc 12 enclose a pressure oil gap. The thrust block 14 is also provided with an annular oil groove, the side surface of the thrust block 14 corresponding to the thrust disc 12 is a relative sliding surface, and the annular oil groove on the thrust block 14 and the side surface of the thrust disc 12 correspond to enclose a pressure oil gap. The pressure oil in the pressure oil clearance is favorable for forming a pressure oil film on the opposite sliding surface.
A plurality of compensation damping springs 6 are uniformly supported between the inner end surface of the displacement compensation piston 5 and the thrust block support 15 along the circumferential direction, the compensation damping springs 6 are helical cylindrical compression springs, and the displacement compensation piston 5 acts on the thrust disc 12 through the compensation damping springs 6 and the thrust blocks 14.
The displacement compensation piston 5 is provided with a piston displacement sensor 13, the piston displacement sensor 13 is installed on the bearing shell 7, the piston displacement sensor 13 adopts a strain type or inductance type common position sensor, and the like, and the piston displacement sensor 13 corresponds to the position of the displacement compensation piston 5. The thrust block 14 is provided with a thrust block displacement sensor 17, the thrust block displacement sensor 17 is mounted on the right end plate 4, the position of the thrust block displacement sensor 17 corresponds to the position of the thrust block 14, and the thrust block displacement sensor 17 is a common position sensor.
The hydraulic pump 25 is a plunger pump, pressure oil at an oil outlet of the hydraulic pump 25 is communicated to a pressure oil port P of the hydraulic reversing valve 22 through the check valve 19, and the hydraulic reversing valve 22 is a three-position three-way electromagnetic reversing valve. The port A of the hydraulic reversing valve 22 is communicated with a hydraulic oil cavity between the displacement compensation piston 5 and the right end plate 4, and the oil return port T of the hydraulic reversing valve 22 is communicated with an oil tank 26.
The oil outlet of the hydraulic pump 25 is communicated to a pressure oil gap between the thrust disc 12 and the left end plate 10 sequentially through the corresponding one-way valve 19, the pressure regulating valve 18 and the left static pressure oil nozzle 11, and similarly, the oil outlet of the hydraulic pump 25 is communicated to the pressure oil gap between the thrust disc 12 and the thrust block 14 sequentially through the corresponding one-way valve 19 and the right static pressure oil nozzle 9 of the pressure regulating valve 18. The left static pressure nozzle 11 is mounted on the left end plate 10, and the right static pressure nozzle 9 is mounted on the bearing housing 7. The hydraulic pumps leading to the pressure oil gap and the hydraulic oil cavity can be the same hydraulic pump or can be two hydraulic pumps respectively.
The position signals monitored by the piston displacement sensor 13 and the thrust block displacement sensor 17 are transmitted to the automatic controller 20 through an electric connection method, and the automatic controller 20 adopts a corresponding common automatic control system. The automatic controller 20 processes and calculates the position signal of the displacement sensor and then sends a control signal, and the control signal controls the hydraulic directional valve 22 to move, so that the valve core of the hydraulic directional valve 22 is in a corresponding position.
An oil outlet of the hydraulic pump 25 is connected with an overflow valve 24 and an accumulator 21 in parallel, and a pressure gauge 23 is connected in parallel on a hydraulic oil circuit. An oil return nozzle 8 is mounted on each of the bearing housing 7 and the left end plate 10, and the oil return nozzle 8 is communicated with an oil tank 26 so as to guide oil in an inner cavity of the bearing housing 7 to the oil tank 26.
Claims (10)
1. The utility model provides an automatic displacement compensation thrust bearing, includes thrust shaft (2) to and fixed thrust dish (12) of setting on thrust shaft (2), its characterized in that: the thrust shaft (2) is rotatably supported on a left end plate (10) and a right end plate (4), the left end plate (10) and the right end plate (4) are respectively and fixedly installed at two ends of the bearing shell (7), and the thrust shaft (2) is also supported with a radial sliding bearing (3); one side of the thrust disc (12) is slidably supported on the inner side surface of the left end plate (10), the other side surface of the thrust disc (12) is slidably supported with a thrust block (14), and the thrust block (14) is sleeved on the thrust shaft (2) in a hollow manner; a displacement compensation piston (5) is arranged in the bearing shell (7) in a sliding mode, a hydraulic oil cavity is located between the outer end of the displacement compensation piston (5) and the inner side of the right end plate (4), and a compensation damping spring (6) is supported between the thrust block (14) and the inner end of the displacement compensation piston (5); a thrust block displacement sensor (17) is arranged on the thrust block (14), and a piston displacement sensor (13) is arranged on the displacement compensation piston (5); an oil outlet of the hydraulic pump (25) is communicated to a pressure oil port P of the hydraulic reversing valve (22), an A port of the hydraulic reversing valve (22) is communicated to a hydraulic oil cavity between the displacement compensation piston (5) and the right end plate (4), and an oil return port T of the hydraulic reversing valve (22) is connected to an oil tank (26); two side surfaces of the thrust disc (12) are respectively communicated with a pressure oil gap between the left end plate (10) and the thrust block (14) and an oil outlet of the hydraulic pump (25); the piston displacement sensor (13) and the thrust block displacement sensor (17) are electrically connected with an automatic controller (20), and the automatic controller (20) is electrically connected with a hydraulic reversing valve (22).
2. The automatic displacement compensating thrust bearing of claim 1, wherein: the outer side surface of the displacement compensation piston (5) is hermetically and slidably supported on the inner cavity surface of the bearing shell (7), the inner hole surface of the displacement compensation piston (5) is hermetically and slidably supported on the convex column surface of the right end plate (4), and a hydraulic oil cavity is defined by the inner side surface and the convex column surface of the right end surface (4), the outer end surface of the displacement compensation piston (5) and the inner cavity surface of the bearing shell (7).
3. The automatic displacement compensating thrust bearing of claim 1, wherein: the side surface of the thrust block (4) is fixedly connected with a thrust block support (15), and the thrust block support (15) can be axially movably supported on the convex cylindrical surface of the right end plate (4); and a plurality of compensation damping springs (6) are supported between the thrust block support (15) and the inner end of the displacement compensation piston (5) along the circumferential direction.
4. The automatic displacement compensating thrust bearing of claim 1, wherein: the radial sliding bearing (3) is arranged between the right end plate (4) and the thrust shaft (2).
5. The automatic displacement compensating thrust bearing of claim 1, wherein: the inner side surface of the left end plate (10) is provided with an annular oil groove, the annular oil groove and the corresponding side surface of the thrust disc (12) are enclosed to form a pressure oil gap, and the oil outlet of the hydraulic pump (25) is communicated to the pressure oil gap sequentially through a corresponding one-way valve (19), a pressure regulating valve (18) and a left static pressure oil nozzle (11).
6. The automatic displacement compensating thrust bearing of claim 1, wherein: the thrust block (14) is provided with an annular oil groove, the annular oil groove and the corresponding side surface of the thrust disc (12) are enclosed to form a pressure oil gap, and the oil outlet of the hydraulic pump (25) is communicated with the pressure oil gap through a corresponding one-way valve (19), a pressure regulating valve (18) and a right static pressure oil nozzle (9) in sequence.
7. The automatic displacement compensating thrust bearing of claim 1, wherein: the piston displacement sensor (13) is arranged on the bearing shell (7), and the position of the piston displacement sensor (13) corresponds to that of the displacement compensation piston (5); the thrust block displacement sensor (17) is arranged on the right end plate (4), and the position of the thrust block displacement sensor (17) corresponds to that of the thrust block (4).
8. The automatic displacement compensating thrust bearing of claim 1, wherein: the hydraulic directional valve (22) is a three-position three-way electromagnetic directional valve.
9. The automatic displacement compensating thrust bearing of claim 1, wherein: an oil outlet of the hydraulic pump (25) is connected with an overflow valve (24) and an energy accumulator (21) in parallel.
10. The automatic displacement compensating thrust bearing of claim 1, wherein: and an oil return nozzle (8) is mounted on the bearing shell (7) and/or the left end plate (10), and the oil return nozzle (8) leads to an oil tank (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011006855.7A CN112046721A (en) | 2020-09-23 | 2020-09-23 | Automatic displacement compensation thrust bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011006855.7A CN112046721A (en) | 2020-09-23 | 2020-09-23 | Automatic displacement compensation thrust bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112046721A true CN112046721A (en) | 2020-12-08 |
Family
ID=73603244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011006855.7A Pending CN112046721A (en) | 2020-09-23 | 2020-09-23 | Automatic displacement compensation thrust bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112046721A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494524A (en) * | 2021-07-22 | 2021-10-12 | 中国船舶重工集团公司第七一一研究所 | Pressure regulating control device and thrust bearing |
| CN113494525A (en) * | 2021-07-22 | 2021-10-12 | 中国船舶重工集团公司第七一一研究所 | Thrust bearing |
| CN113653764A (en) * | 2021-07-27 | 2021-11-16 | 中国舰船研究设计中心 | Damping thrust bearing based on hydraulic servo control |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000145705A (en) * | 1998-11-06 | 2000-05-26 | Toshiba Mach Co Ltd | Hydraulic motor device having slow booster relief valve |
| CN102267556A (en) * | 2011-05-01 | 2011-12-07 | 浙江大学 | Ship propelling device employing hydraulic thrust bearing |
| CN212605747U (en) * | 2020-09-23 | 2021-02-26 | 东台船用配件有限公司 | Automatic displacement compensation thrust bearing |
-
2020
- 2020-09-23 CN CN202011006855.7A patent/CN112046721A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000145705A (en) * | 1998-11-06 | 2000-05-26 | Toshiba Mach Co Ltd | Hydraulic motor device having slow booster relief valve |
| CN102267556A (en) * | 2011-05-01 | 2011-12-07 | 浙江大学 | Ship propelling device employing hydraulic thrust bearing |
| CN212605747U (en) * | 2020-09-23 | 2021-02-26 | 东台船用配件有限公司 | Automatic displacement compensation thrust bearing |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494524A (en) * | 2021-07-22 | 2021-10-12 | 中国船舶重工集团公司第七一一研究所 | Pressure regulating control device and thrust bearing |
| CN113494525A (en) * | 2021-07-22 | 2021-10-12 | 中国船舶重工集团公司第七一一研究所 | Thrust bearing |
| CN113494525B (en) * | 2021-07-22 | 2023-02-03 | 中国船舶集团有限公司第七一一研究所 | Thrust bearing |
| CN113653764A (en) * | 2021-07-27 | 2021-11-16 | 中国舰船研究设计中心 | Damping thrust bearing based on hydraulic servo control |
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