CN214367265U - Hydraulic supporting structure of ship sliding thrust bearing - Google Patents
Hydraulic supporting structure of ship sliding thrust bearing Download PDFInfo
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- CN214367265U CN214367265U CN202023029927.8U CN202023029927U CN214367265U CN 214367265 U CN214367265 U CN 214367265U CN 202023029927 U CN202023029927 U CN 202023029927U CN 214367265 U CN214367265 U CN 214367265U
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Abstract
The utility model belongs to the technical field of ship sliding thrust bearing correlation, and discloses a hydraulic support structure of a ship sliding thrust bearing, which comprises a support ring, a piston and a limit cover arranged in a thrust bearing shell; the supporting ring is a stepped cylinder, the end surface of the large end of the supporting ring is provided with an annular groove, the bottom surface of the annular groove is provided with a plurality of piston cavities, and the pistons are partially arranged in the piston cavities; the limiting cover is arranged on the bottom surface of the annular groove and is provided with a through hole, and the through hole is a stepped hole and comprises a large hole and a small hole which are communicated with each other; the piston comprises a piston head, a piston rod and a piston ring connecting the piston head and the piston rod; the piston head and the piston ring are respectively arranged in the small hole and the large hole of the limit cover, and the piston rod is arranged in the piston cavity; the piston ring and the annular groove jointly form a positive turning limit structure of the piston; the limit cover and the piston ring jointly form a reversing limit structure of the piston. The utility model discloses guaranteed thrust bearing's security, the technology is feasible, simple structure.
Description
Technical Field
The utility model belongs to the technical field of boats and ships slip thrust bearing is relevant, more specifically relates to a boats and ships slip thrust bearing's fluid pressure type bearing structure.
Background
The thrust bearing is a key device of a ship propulsion shafting, and is used for transmitting propeller thrust to push a ship to sail, and simultaneously protecting a prime mover from bearing the propeller thrust. At present, boats and ships generally adopt slidingtype tilting pad power lubrication thrust bearing, its thrust piece bearing structure is stereotyped basically, specifically is the balancing piece structure of two-layer stack installation around one kind. The support structure is mainly characterized by linkage, namely the front and rear layers of balance blocks can move relatively, and then unbalanced force between the thrust blocks can be transmitted. The balance block linkage mechanism has the direct benefits of increasing the flexibility of the thrust block, reducing the thermal deformation of the thrust block caused by uneven load and maximally achieving the maximum specific pressure which can be borne by the tile surface material. However, this form of support structure also has significant disadvantages: the structure is rigid, has high structural rigidity and does not have impact resistance and vibration reduction performance; secondly, the mechanical transmission is adopted, large friction force exists between the front balance block and the rear balance block, and the transmission efficiency is low.
In recent years, the harmfulness of the line spectrum problem of the longitudinal vibration of a ship propulsion shafting has become common knowledge, and the urgency of line spectrum treatment is increasingly highlighted. The thrust bearing is a main bearing device for connecting the thrust shafting and the ship body and is also a main transmission channel for the longitudinal vibration of the thrust shafting, so that the thrust bearing becomes a main carrier for the longitudinal vibration line spectrum control technology of the thrust shafting. Like the real novel patents of 'marine propulsion shafting longitudinal vibration simulation test bench' (ZL 201110202246.3) and 'marine thrust bearing resonance converter' (ZL 201110202225.1) which are the principle innovation research of the novel hydraulic thrust bearing technology, the core innovation lies in that a hydraulic piston is used as a thrust block supporting structure, and the technical advantages thereof lie in that: the hydraulic oil is elastic support, the compressibility of the hydraulic oil is obviously greater than that of steel materials, and the structural rigidity of the thrust bearing is reduced; the hydraulic transmission is adopted, no mechanical friction exists, and the transmission is efficient; and thirdly, a resonance converter interface is provided, and the longitudinal vibration reduction technology of the propulsion shafting can be integrated.
In engineering application, the hydraulic support structure needs to mainly solve the safety design problem, and the safety requirement mainly comes from two aspects: the thrust bearing has the basic function of transmitting propeller thrust, and the basic function of transmitting the thrust of the thrust bearing is absolutely required under a hydraulic failure mode because hydraulic pressure has oil leakage risk; secondly, the working clearance of the thrust ring and the thrust block is required, and the change of the form of the supporting structure cannot influence the working clearance of the thrust ring and the thrust block, which is the working condition of the normal operation of the thrust bearing.
SUMMERY OF THE UTILITY MODEL
To the above defect or the improvement demand of prior art, the utility model provides a boats and ships slip thrust bearing's fluid pressure type bearing structure, fluid pressure type bearing structure is through the functional design of restriction displacement, adopts the spacing lid that sets up on the piston as the limit structure that backs a car of piston, and the support ring is as the positive limit structure of driving a car of piston, has so guaranteed thrust bearing's operation security effectively, seals functional design on the security basis to guarantee the reliability that hydraulic pressure supported, and in engineering application, this bearing structure has advantages such as simple structure, the technology is feasible, safe and reliable.
In order to achieve the above object, according to one aspect of the present invention, there is provided a hydraulic support structure for a sliding thrust bearing of a ship, the hydraulic support structure including a support ring, a piston, and a limit cover, the support ring, the piston, and the limit cover being disposed in a thrust bearing housing; the support ring is a stepped cylinder body and comprises a large end and a small end which are connected; the end surface of the big end is provided with an annular groove, the bottom surface of the annular groove is provided with a plurality of piston cavities, and the pistons are partially arranged in the piston cavities; the limiting cover is arranged on the bottom surface of the annular groove and is provided with a through hole, and the through hole is a stepped hole and comprises a large hole and a small hole which are communicated with each other; the piston comprises a piston head, a piston rod and a piston ring connecting the piston head and the piston rod, and the diameter of the piston ring, the diameter of the piston rod and the diameter of the piston head are gradually reduced; the piston head and the piston ring are respectively arranged in the small hole and the large hole, and the piston rod is arranged in the piston cavity;
the piston ring and the annular groove jointly form a positive turning limiting structure of the piston; the limit cover and the piston ring jointly form a reversing limit structure of the piston.
Further, the depth of the small hole is consistent with the length of the piston head, and the length of the large hole is larger than the length of the piston ring.
Furthermore, a sealing groove is formed in the outer circumferential surface of the piston rod, and a sealing element is arranged in the sealing groove.
Further, a second threaded hole is formed in the bottom end of the piston cavity along the radial direction of the support ring, and the second threaded hole is located at the small end; one end of each three-way joint penetrates through the thrust bearing shell and then is connected into the second threaded hole, and two adjacent three-way joints are connected through a guide pipe.
Furthermore, an annular hydraulic pipeline formed by the three-way joint and the guide pipe is lower than the outer circumferential surface of the support ring facing the thrust block.
Further, the support ring, the piston, the tee joint, the conduit and the seal constitute a sealed hydraulic space.
Furthermore, one end of the piston head, which is far away from the piston ring, is provided with a groove, a supporting block subjected to heat treatment is installed in the groove, and the supporting block is directly contacted with the thrust block.
Furthermore, the top ends of two adjacent piston cavities are respectively provided with a third threaded hole and a fourth threaded hole which are communicated along the radial direction of the support ring, and a first cylindrical joint and a second cylindrical joint respectively penetrate through the thrust bearing shell and then are installed in the third threaded hole and the fourth threaded hole to serve as an oil filling opening and an exhaust opening of hydraulic oil.
Furthermore, the joints of the first cylindrical joint and the second cylindrical joint with the thrust bearing shell are provided with sealing covers.
Furthermore, a key groove and a threaded mounting hole are formed in the circumference of the large end, a key is mounted in the key groove, and the second screw penetrates through the key and then is connected with the threaded mounting hole.
Generally, through the utility model discloses the above technical scheme who conceives compares with prior art, the utility model provides a boats and ships sliding thrust bearing's fluid pressure type bearing mainly has following beneficial effect:
1. the piston ring and the annular groove jointly form a positive turning limiting structure of the piston; the limit cover and the piston ring jointly form a reversing limit structure of the piston, so that the hydraulic support structure simultaneously has a forward driving limit structure and a reversing limit structure, namely simultaneously has a forward driving limit function and a reverse driving limit function of the propeller, can still reliably transmit forward driving thrust of the propeller in a hydraulic failure mode, and keeps a normal working gap between the thrust ring and the reversing thrust block when the propeller backs.
2. The support ring, the piston, the three-way joint, the guide pipe and the sealing piece form a sealed hydraulic space, and hydraulic pressure is always kept to balance forward thrust of the propeller.
3. In engineering application, the supporting structure has the advantages of simple structure, feasible process, safety, reliability and the like.
4. The circumference of the big end is provided with a key groove and a threaded mounting hole, a key is mounted in the key groove, and the second screw penetrates through the key and then is connected with the threaded mounting hole, so that the support ring is prevented from rotating.
5. The depth of the small hole is consistent with the length of the piston head, the length of the large hole is larger than that of the piston ring, and the length difference of the small hole and the large hole forms the displacement stroke of the piston, namely the maximum movement displacement of the piston.
Drawings
Fig. 1 is a schematic view of a hydraulic support structure of a ship sliding thrust bearing according to the present invention;
FIG. 2 is a cross-sectional view of the hydraulic support structure of the marine sliding thrust bearing of FIG. 1 taken along the direction B-B;
FIG. 3 is an enlarged schematic view of the marine sliding thrust bearing of FIG. 1 at the hydraulic support structure I;
FIG. 4 is a partial schematic view of a support ring of the hydraulic support structure of the marine sliding thrust bearing of FIG. 1;
FIG. 5 is another plan view of the support ring of the hydraulic support structure of the marine thrust bearing of FIG. 4;
FIG. 6 is a cross-sectional view of the support ring of FIG. 4 taken along A-A;
FIG. 7 is a schematic illustration of a piston of the hydraulic support structure of the marine sliding thrust bearing of FIG. 1;
FIG. 8 is a schematic view of a retainer cap of the hydraulic support structure of the marine sliding thrust bearing of FIG. 1;
fig. 9 is a sectional view of the position-restricting cover in fig. 8.
The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein: 1-upper half, 2-lower half, 3-socket, 4-annular groove, 5-piston, 6-piston cavity, 7-first threaded hole, 8-limit cover, 9-first screw, 10-second threaded hole, 11-three-way joint, 12-conduit, 13-key, 14-second screw, 15-third threaded hole, 16-fourth threaded hole, 17-first cylindrical joint, 18-second cylindrical joint, 19-piston head, 20-piston ring, 21-piston rod, 22-sealing element, 23-front guide ring, 24-rear guide ring, 25-support block, 26-through hole, 27-stepped through hole, 28-forward thrust block, 29-thrust bearing housing, 30-sealing cover.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
The utility model provides a boats and ships sliding thrust bearing's fluid pressure type bearing structure needs the technical requirement who satisfies from security and reliability as follows:
1. the hydraulic transmission device has the function of forward driving limit of the propeller, and can reliably transmit forward driving thrust of the propeller under a hydraulic failure mode;
2. the reversing limit function of the propeller is realized, and a normal working clearance is kept between the thrust ring and the reversing thrust block when the propeller reverses;
3. a sealed hydraulic space is formed, and hydraulic pressure is always kept to balance the forward thrust of the propeller.
Referring to fig. 1, 2 and 3, the hydraulic support structure includes a support ring, a piston 5, a limit cover 8 and a thrust bearing housing 29, the piston 5 is disposed in the support ring, the limit cover 8 is connected to the support ring, and the support ring, the piston 5 and the limit cover 8 are disposed in the thrust bearing housing 29. The support ring is a forward limit structure of the piston 5, and the limit cover 8 is a reverse limit structure of the piston 5; and a sealed hydraulic space is formed in the hydraulic supporting structure.
Referring to fig. 4, 5 and 6, the support ring is of a vertically split ring structure to adapt to the vertically split structure of the ship thrust bearing. The support ring is a stepped cylinder and comprises an upper half body 1 and a lower half body 2, and the upper half body 1 and the lower half body 2 are combined to form the support ring.
The large-end face of the support ring is provided with an annular groove 4, the bottom face of the annular groove 4 is further provided with a plurality of piston cavities 6 used for containing the pistons 5, the piston cavities 6 are evenly distributed around the central shaft of the annular groove 4, and the diameter of each piston cavity 6 is smaller than the groove width of the annular groove 4.
The large-end face of the support ring is further provided with a plurality of slots 3, the slots 3 are evenly distributed around the central shaft of the support ring, and the slots serve as assembly ports of the forward turning thrust blocks. The slot 3 is communicated with the annular groove 4, the depth of the annular groove 4 in the axial direction of the support ring is larger than that of the slot in the axial direction of the support ring, and the slot 3 is over against the central shaft of the piston cavity 6.
The center of the piston cavity 6 is deviated from the center of the slot 3 by a small distance, so that the piston 5 eccentrically supports the thrust shoe, and the thrust shoe can be freely inclined when a shaft system rotates, and a wedge-shaped dynamic pressure lubricating oil film is formed.
The center of the piston cavity 6 is used as a circle center, the bottom surface of the annular groove 4 is provided with a first threaded hole 7, and the first threaded holes 7 are symmetrically distributed relative to the central axis of the piston cavity 6. The limiting cover 8 is arranged on the piston 5, and a first screw 9 penetrates through the limiting cover 8 and then is connected with the first threaded hole 7. As a reversing limit structure of the piston 5, the upper surface of the limit cover 8 and the bottom surface of the slot 3 are on the same plane. The thickness of the limiting cover 8 is equal to the difference between the depths of the annular groove 4 and the slot 3.
And a second threaded hole 10 is formed in the bottom end of the piston cavity 6 along the outer diameter direction of the support ring, and the second threaded hole 10 is located at the end with the smaller diameter of the outer circle of the support ring and serves as a mounting hole of the three-way joint 11. One end of the three-way joint 11 penetrates through the thrust bearing shell 29 and then is arranged in the second threaded hole 10, and the adjacent three-way joints 11 are connected through a guide pipe 12, so that an annular hydraulic pipeline is formed, and the piston cavities 6 on the upper half body 1 and the lower half body 2 are communicated.
In this embodiment, the annular hydraulic line formed by the three-way joint 11 and the conduit 12 is lower than the outer circumferential surface of the support ring facing the thrust pad, so as to avoid interference with the installation of the support ring in the thrust bearing housing 29.
The circumference of the large end of the upper half body 1 starts to be provided with a key groove and a threaded mounting hole, a key 13 is mounted in the key groove, and the second screw 14 penetrates through the key 13 and then is connected with the threaded mounting hole, so that the support ring is prevented from rotating.
The top ends of the two piston cavities 6 at the uppermost end of the upper half body 1 are respectively provided with a third threaded hole 15 and a fourth threaded hole 16 which are communicated along the outer diameter direction of the support ring, the third threaded hole 15 and the fourth threaded hole 16 are positioned at one end of the support ring with a small excircle diameter, and a first cylindrical joint 17 and a second cylindrical joint 18 respectively penetrate through the thrust bearing shell 29 and then are installed in the third threaded hole 15 and the fourth threaded hole 16 to serve as an oil filling port and an exhaust port of hydraulic oil.
Referring to fig. 7, the piston 5 is a cross-shaped cylinder structure, and includes a piston head 19, a piston rod 21, and a piston ring 20 connecting the piston head 19 and the piston rod 21. The diameter of the piston ring 20, the diameter of the piston rod 21 and the diameter of the piston head 19 are gradually reduced. The piston ring 20 and the annular groove 4 jointly form a forward turning limiting structure of the piston 5, under a hydraulic failure mode, the piston ring 20 is in direct contact with the annular groove 4 under the action of propeller thrust, a hydraulic transmission link is omitted, the propeller thrust is directly transmitted by the support ring, and forward turning safety of the thrust bearing is guaranteed. A sealing groove, a front guide groove and a rear guide groove are formed in the outer circumferential surface of the piston rod 21, a sealing element 22 is installed in the sealing groove, and a front guide ring 23 and a rear guide ring 24 are installed in the front guide groove and the rear guide groove in a complete set. One end of the piston head 19, which is far away from the piston ring 20, is provided with a groove, a support block 25 which is subjected to heat treatment is arranged in the groove, and the support block 25 is directly contacted with a forward thrust block 28. The forward thrust block 28 is accommodated in the thrust bearing housing 29 and is disposed at an end of the support ring where the annular groove 4 is opened.
Referring to fig. 8 and 9, the limiting cover 8 is provided with a through hole 26, and a central axis of the through hole 26 coincides with a central axis of the limiting cover 8. The through hole 26 is a stepped hole for receiving the piston head 19 and the piston ring 20. The large and small holes constituting the through hole 26 are used for receiving the piston ring 20 and the piston head 19, respectively. Wherein the height of the small hole is consistent with the length of the piston head 19, the length of the large hole is larger than the length of the piston ring 20, and the difference of the lengths of the small hole and the large hole constitutes the displacement stroke of the piston 5, namely the maximum displacement of the piston 5.
The limit cover 8 with the piston ring 20 constitutes the limit structure that backs a car of piston 5 jointly, works as when piston 5 reaches the displacement stroke to the end movement of backing a car under hydraulic pressure effect, limit cover 8 with the piston ring 20 contacts, plays right the limit action that backs a car of piston 5, and then does not influence the initial assembly clearance between thrust ring and the thrust piece in the thrust bearing, guarantee thrust bearing's the security of backing a car. The limiting cover 8 is further provided with a plurality of step-shaped through holes 27, and the step-shaped through holes 27 are uniformly distributed around the central axis of the through hole 26. The stepped through hole 27 is used for the first screw 9 to pass through.
The hydraulic support structure serves as a support structure for the forward thrust block 28, which is mounted within the thrust bearing housing 29. The first cylindrical joint 17 and the second cylindrical joint 18 both penetrate through the support ring and the thrust bearing housing 29, and in order to ensure the sealing reliability of the opening, the joints of the first cylindrical joint 17 and the second cylindrical joint 18 with the support ring and the thrust bearing housing are sealed independently.
The joints of the first cylindrical joint 17 and the second cylindrical joint 18 and the threaded holes of the support ring are sealed by end faces, and the joints of the first cylindrical joint 17 and the second cylindrical joint 18 and the thrust bearing housing 29 are sealed by a sealing cover 30. The sealing cover 30 is provided with an O-ring at each of a center hole and a bottom surface thereof, and seals an outer circumferential surface of a joint and an opening of the thrust bearing housing 29, and the sealing cover 30 is provided with screw holes uniformly distributed along a circumferential direction, so that the sealing cover 30 is connected and fixed with the thrust bearing housing 29 by matching the screw holes with screws.
In the starting stage, the first cylindrical joint 17 and the second cylindrical joint 18 are connected with an external hydraulic system, hydraulic oil circulation operation is firstly carried out to discharge air dissociated in hydraulic oil in the supporting structure to the maximum extent, then the second cylindrical joint 18 is closed, a hydraulic oil circuit is disconnected, then the first cylindrical joint 17 pressurizes the inside of the supporting ring, the piston 5 is pushed to move towards the reversing end until the piston 5 contacts the limit cover 8, and the piston 5 reaches the reversing end displacement stroke position. At this time, the second cylindrical joint 18 is opened again to release the pressure, and finally, the first cylindrical joint 17 and the second cylindrical joint 18 are closed at the same time, so that the hydraulic oil is sealed in the support ring to form a hydraulic support structure of the thrust block.
In this embodiment, the conduit 12 may be any type of hydraulic pipe, including a seamless steel pipe, a flexible pipe, a copper pipe, etc.; the utility model discloses an inside hydraulic oil that is full of fluid pressure type bearing structure to hydraulic piston supports thrust bearing thrust piece, and its route of transmission screw thrust under normal operating condition does: piston → hydraulic oil → support ring housing. Because the hydraulic oil of each piston cavity in the supporting ring is communicated to form a communicating vessel, the local unbalanced force of the thrust block caused by the eccentricity of the thrust ring in the running state of the shafting can be transmitted in real time, and the stress balance of each thrust block is ensured. Compared with the traditional balance block supporting structure, the hydraulic transmission is more efficient and is more sensitive to unbalance.
The utility model discloses a fluid pressure type bearing structure changes the restriction of piston position in certain space, has positive car simultaneously and backs a car limit function, can guarantee thrust bearing's operation security effectively. The forward limit function plays a role in the hydraulic failure mode, the piston directly contacts the support ring shell under the forward thrust of the propeller under the extreme condition, and the path for transmitting the forward thrust of the propeller is as follows: piston → support ring housing, does not affect the basic function of the thrust bearing to transmit thrust. The backing limit function plays a role under the working condition of backing of the propeller. And in the starting stage, pressure oil is injected into the support ring to push the piston to move to the reversing end to the maximum displacement stroke position. Because can't judge the initial position of piston in the supporting ring and promote the hydraulic pressure that the shafting removed, the piston probably directly contacts with the thrust piece of just driving, under this kind of position state, the piston will promote thrust ring and the thrust piece of backing a car and move together under the hydraulic pressure effect, and under the spacing condition of not backing a car, the thrust ring will compress tightly the thrust piece of backing a car, if the screw backs a car this moment, because there is not working clearance between thrust ring and the thrust piece of backing a car, probably leads to the occurence of failure of bearing burning. The utility model discloses at the spacing lid of piston front end installation, can be with the displacement control of backing a car of piston in the design displacement stroke, do not produce any influence to the assembly gap between thrust collar and the thrust piece.
The utility model discloses a fluid pressure type bearing structure adopts outer intercommunication mode, and the piston chamber of upper and lower halfbody communicates each other through external pipe, forms sealed hydraulic pressure space by piston, piston chamber, external pipe and sealing member. The external communication mode can simplify the design and manufacture of the support ring, and the upper half body and the lower half body are of non-combined structures.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a boats and ships sliding thrust bearing's fluid pressure type bearing structure which characterized in that:
the hydraulic support structure comprises a support ring, a piston and a limit cover, wherein the support ring, the piston and the limit cover are arranged in a thrust bearing shell;
the support ring is a stepped cylinder body and comprises a large end and a small end which are connected; the end surface of the big end is provided with an annular groove, the bottom surface of the annular groove is provided with a plurality of piston cavities, and the pistons are partially arranged in the piston cavities; the limiting cover is arranged on the bottom surface of the annular groove and is provided with a through hole, and the through hole is a stepped hole and comprises a large hole and a small hole which are communicated with each other; the piston comprises a piston head, a piston rod and a piston ring connecting the piston head and the piston rod, and the diameter of the piston ring, the diameter of the piston rod and the diameter of the piston head are gradually reduced; the piston head and the piston ring are respectively arranged in the small hole and the large hole, and the piston rod is arranged in the piston cavity;
the piston ring and the annular groove jointly form a positive turning limiting structure of the piston; the limit cover and the piston ring jointly form a reversing limit structure of the piston.
2. The hydraulic support structure of a sliding thrust bearing for a ship of claim 1, wherein: the depth of the small hole is consistent with the length of the piston head, and the length of the large hole is larger than that of the piston ring.
3. The hydraulic support structure of a sliding thrust bearing for a ship of claim 1, wherein: and a sealing groove is formed in the outer circumferential surface of the piston rod, and a sealing element is arranged in the sealing groove.
4. The hydraulic support structure of a sliding thrust bearing for a ship of claim 3, wherein: a second threaded hole is formed in the bottom end of the piston cavity along the radial direction of the support ring, and the second threaded hole is located at the small end; one end of each three-way joint penetrates through the thrust bearing shell and then is connected into the second threaded hole, and two adjacent three-way joints are connected through a guide pipe.
5. The hydraulic support structure of a ship sliding thrust bearing according to claim 4, wherein: and an annular hydraulic pipeline formed by the three-way joint and the guide pipe is lower than the outer circumferential surface of the support ring facing the thrust block.
6. The hydraulic support structure of a ship sliding thrust bearing according to claim 4, wherein: the support ring, the piston, the tee fitting, the conduit and the seal constitute a sealed hydraulic space.
7. The hydraulic support structure of a ship sliding thrust bearing according to claim 4, wherein: the piston is characterized in that one end of the piston head, which is far away from the piston ring, is provided with a groove, a supporting block subjected to heat treatment is arranged in the groove, and the supporting block is directly contacted with the thrust block.
8. The hydraulic support structure of a sliding thrust bearing for a ship of claim 1, wherein: and the top ends of the two adjacent piston cavities are respectively provided with a third threaded hole and a fourth threaded hole which are communicated along the radial direction of the support ring, and a first cylindrical joint and a second cylindrical joint respectively penetrate through the thrust bearing shell and then are installed in the third threaded hole and the fourth threaded hole to serve as an oil filling port and an exhaust port of hydraulic oil.
9. The hydraulic support structure of a ship sliding thrust bearing according to claim 8, wherein: and sealing covers are arranged at the joints of the first cylindrical joint and the second cylindrical joint and the thrust bearing shell.
10. The hydraulic support structure of a sliding thrust bearing for a ship of any one of claims 1 to 9, wherein: a key groove and a threaded mounting hole are formed in the circumference of the large end, a key is mounted in the key groove, and a second screw penetrates through the key and then is connected with the threaded mounting hole.
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| CN202023029927.8U CN214367265U (en) | 2020-12-16 | 2020-12-16 | Hydraulic supporting structure of ship sliding thrust bearing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114104244A (en) * | 2021-12-06 | 2022-03-01 | 上海涟屹轴承科技有限公司 | Novel thrust bearing structure for ship |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114104244A (en) * | 2021-12-06 | 2022-03-01 | 上海涟屹轴承科技有限公司 | Novel thrust bearing structure for ship |
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