CN118705262B - A tilting pad bearing with adjustable clearance - Google Patents
A tilting pad bearing with adjustable clearance Download PDFInfo
- Publication number
- CN118705262B CN118705262B CN202411207576.5A CN202411207576A CN118705262B CN 118705262 B CN118705262 B CN 118705262B CN 202411207576 A CN202411207576 A CN 202411207576A CN 118705262 B CN118705262 B CN 118705262B
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- piece
- movable
- tile
- gear
- transmission gear
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
- F16C17/06—Sliding-contact bearings for exclusively rotary movement for axial load only with tiltably-supported segments, e.g. Michell bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/44—Centrifugal pumps
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finishing Walls (AREA)
Abstract
The invention relates to the technical field of tilting pad bearings, and particularly discloses a tilting pad bearing with an adjustable gap, which comprises a shell; a tile; the distance adjusting mechanism is arranged inside the tile, and when the distance between the tile and the inner wall of the shell needs to be adjusted, the position of the movable frame in the distance adjusting mechanism is adjusted, so that the movable frame drives the balls to move, and the distance between the tile and the inner wall of the shell is adjusted.
Description
Technical Field
The invention relates to the technical field of tilting pad bearings, in particular to a tilting pad bearing with an adjustable gap.
Background
The centrifugal air compressor is characterized in that the impeller drives gas to rotate at a high speed, so that the gas generates centrifugal force, the flow speed and the pressure of the gas after passing through the impeller are improved due to the diffusion flow of the gas in the impeller, compressed air is continuously produced, a tilting-pad bearing is usually used for supporting an inner rotor of the centrifugal air compressor, and the following technical problems exist in the conventional tilting-pad bearing: (1) The position of the internal tilting pad is inconvenient to adjust, and (2) the axial tilting of the tilting pad during operation cannot be monitored.
Disclosure of Invention
The invention aims to provide a tilting pad bearing with adjustable clearance, so as to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
A gap-adjustable tilting pad bearing comprising:
A housing;
the tiles are arranged in four and are uniformly distributed in the shell;
The adjustable distance mechanism comprises a movable frame, a connecting rod, a first transmission gear, a second transmission gear, a first gear piece, a second gear piece and a threaded rod, wherein a movable groove is formed in one side of the tile, the first gear piece and the second gear piece are in transmission connection in the movable groove, the threaded rod is fixedly installed in the second gear piece, the movable frame is in threaded connection with the threaded rod, the movable frame is slidably arranged in the movable groove, balls are movably connected in the movable frame, the connecting rod is rotatably connected in the tile, the first transmission gear is fixedly installed at one end of the connecting rod, the first transmission gear is meshed with the second transmission gear, the second transmission gear is fixedly installed in the inner side of the first gear piece, the connecting rod is in transmission connection with the first gear piece through the first transmission gear, an adjusting hole is formed in the side wall of the tile, an adjusting piece is in rotation connection in the hole, the connecting rod is fixedly installed on one side of the adjusting piece, and the distance between the first gear and one side of the adjusting piece and the ball can be adjusted through the adjusting mechanism.
Optionally, at least two second gear members are provided and are uniformly distributed along the first gear member.
Optionally, a thread groove matched with the threaded rod is formed in the movable frame, and a communication port penetrating through the movable frame is formed in the movable frame.
Optionally, the mounting hole has been seted up to tile piece one side, the inside one end that fixedly mounted has the installation spring of mounting hole, the casing is connected to the installation spring other end.
Optionally, a lining member is arranged in the shell, a groove is formed in one side of the lining member, one end of the mounting spring is connected to the inside of the groove, and a rolling groove is formed in the center of the lining member.
Optionally, the rolling groove is matched with the ball, and the ball is located inside the rolling groove.
Optionally, the device further comprises a baffle plate, wherein the baffle plate is fixedly installed on two sides of the shell through fixing bolts, and tiles can be limited in the shell through the baffle plate.
Optionally, the device further comprises a monitoring mechanism, wherein the monitoring mechanism is arranged inside the baffle and is used for monitoring the inclination degree of the tile.
Optionally, the monitoring mechanism includes movable part, activity chamber, supporting spring and pressure sensor, the activity chamber has been seted up to baffle one side, supporting spring one end fixed mounting is in activity intracavity wall, movable part swing joint is in activity intracavity portion, the movable part is located the supporting spring other end, pressure sensor fixed mounting is in activity intracavity wall, the movable part is located supporting spring keeps away from pressure sensor's one end.
Optionally, the monitoring mechanism is provided with a plurality of, and a plurality of monitoring mechanism is relative the tile equipartition.
The invention has at least the following beneficial effects:
(1) According to the invention, the distance adjusting mechanism is arranged, when the distance between the pad and the inner wall of the shell needs to be adjusted, the connecting rod can drive the first gear piece to rotate through the first transmission gear, the second gear piece meshed with the first gear piece can be driven to rotate through the rotation of the first gear piece, the threaded rod can be driven to rotate through the rotation of the second gear piece, the movable frame can be moved in the movable groove through the rotation of the threaded rod, so that the position of the ball can be adjusted through adjusting the position of the movable frame, and the adjustment of the distance between the pad and the inner wall of the shell is realized.
(2) According to the invention, the monitoring mechanism is arranged, when the tile is axially inclined, the movable piece is pushed to move towards the inside of the movable cavity, so that the movable piece is contacted with the pressure sensor, the pressure sensor is activated, and the axial inclination state of the tile is judged according to the detection data of the pressure sensor.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a partial cross-sectional structure of a housing of the present invention;
FIG. 3 is a schematic view of the internal structure of the housing of the present invention;
FIG. 4 is a schematic view of a tile structure of the present invention;
FIG. 5 is a schematic cross-sectional view of the movable trough of the present invention;
FIG. 6 is a schematic view of the internal structure of the movable trough of the present invention;
FIG. 7 is a schematic cross-sectional view of a movable frame according to the present invention;
FIG. 8 is a schematic view of a baffle plate of the present invention in partial cross-section.
In the drawings, the list of components represented by the various numbers is as follows:
1. A housing; 2. a distance adjusting mechanism; 3. a baffle; 301. a movable member; 302. a movable cavity; 303. a support spring; 304. a pressure sensor; 4. a tile; 401. an adjustment aperture; 402. a mounting hole; 403. installing a spring; 404. a movable groove; 405. a movable frame; 406. a ball; 407. a connecting rod; 408. a first transmission gear; 409. a first gear member; 410. a second transmission gear; 411. a second gear member; 412. a threaded rod; 413. a thread groove; 414. a communication port; 415. an adjusting member; 5. a lining member; 501. a groove; 502. rolling grooves.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-8, the present invention provides a tilting pad bearing with adjustable gap, comprising:
A housing 1;
the tiles 4 are arranged in four, and the four tiles 4 are uniformly distributed in the shell 1;
The distance adjusting mechanism 2 is arranged inside the tile 4, and the distance between the tile 4 and the inner wall of the shell 1 can be adjusted by adjusting the positions of the balls 406 by the distance adjusting mechanism 2;
The baffle plate 3 is fixedly arranged on one side of the shell 1 through a fixing bolt, the tile 4 can be limited in the shell 1 through the baffle plate 3, and a certain gap is reserved between the tile 4 and the baffle plate 3;
The monitoring mechanism is arranged inside the baffle plate 3 and is used for monitoring the inclination degree of the tile 4.
In some embodiments, referring to fig. 4,5 and 6, the adjustable distance mechanism 2 includes a movable frame 405, a connecting rod 407, a first transmission gear 408, a second transmission gear 410, a first gear piece 409, a second gear piece 411 and a threaded rod 412, a movable slot 404 is formed on one side of the tile 4, the first gear piece 409 and the second gear piece 411 are both rotatably connected to the inner wall of the movable slot 404, the threaded rod 412 is fixedly installed inside the second gear piece 411, the movable frame 405 is movably connected to the side wall of the threaded rod 412, the movable frame 405 is movably connected to the inside of the movable slot 404, the balls 406 are movably connected to the inside of the movable frame 405, the connecting rod 407 is rotatably connected to the inside of the tile 4, the first transmission gear 408 is fixedly installed at one end of the connecting rod 407, the second transmission gear 410 is fixedly installed on one side of the first gear piece 409, the first transmission gear piece 408 and the second transmission gear piece 410 are driven to rotate through the first transmission gear piece 408 at one end, the second gear piece 411 can be meshed with the second gear piece can be driven to rotate through the rotation of the first gear piece 409, the balls 406 can be movably connected to the movable frame 405 can be rotatably connected to the second gear piece, and the position of the threaded rod 405 can be adjusted to the inside the movable frame 4 through the threaded rod, and the position of the movable frame can be adjusted by the position of the movable frame 4 can be adjusted.
In some embodiments, referring to fig. 5 and 6, the first transmission gear 408 is meshed with the second transmission gear 410, the connecting rod 407 is in transmission connection with the first gear piece 409 through the first transmission gear 408 and the second transmission gear 410, the adjusting hole 401 is formed in the side wall of the tile 4, the adjusting piece 415 is rotatably connected in the adjusting hole 401, the connecting rod 407 is fixedly installed on one side of the adjusting piece 415, the first gear piece 409 is meshed with the second gear piece 411, the second gear piece 411 is provided with a plurality of grooves which are the same as the bolts are formed in one side of the adjusting piece 415, when the adjusting piece 415 needs to be rotated, a screwdriver is inserted into the adjusting hole 401, the adjusting piece 415 is driven to rotate through rotating the screwdriver, and accordingly the connecting rod 407 is driven to rotate, and the adjusting tool can be prevented from being limited.
In some embodiments, referring to fig. 5, 6 and 7, a threaded groove 413 engaged with the threaded rod 412 is formed inside the movable frame 405, a communication port 414 penetrating the movable frame 405 is formed inside the movable frame 405, and the threaded rod 412 can drive the movable frame 405 to move inside the movable groove 404 when rotating through the threaded groove 413.
In some embodiments, referring to fig. 3 and 4, a mounting hole 402 is formed in one side of a tile 4, a mounting spring 403 is fixedly mounted in the mounting hole 402, an inner lining member 5 is fixedly mounted at one end of the mounting spring 403, a groove 501 is formed in one side of the inner lining member 5, the mounting spring 403 is located in the groove 501, a rolling groove 502 penetrating through the inner lining member 5 is formed in the center of the inner lining member 5, the rolling groove 502 is matched with a ball 406, the ball 406 is located in the rolling groove 502, the position of the ball 406 can be limited by setting the rolling groove 502, the inclination of the ball 406 is avoided, the position of the tile 4 can be limited by setting the inner lining member 5, the tile 4 can be prevented from being displaced in the casing 1, the tile 4 can be supported by setting the mounting spring 403, and the mounting spring 403 has a better supporting effect when the tile 4 is inclined radially, so that the tile 4 can be better attached to a rotor rotating shaft.
In some embodiments, referring to fig. 3 and 8, the monitoring mechanism includes a movable member 301, a movable cavity 302, a supporting spring 303 and a pressure sensor 304, where the movable cavity 302 is opened on one side of the baffle 3, one end of the supporting spring 303 is fixedly installed on the inner wall of the movable cavity 302, the movable member 301 is movably connected inside the movable cavity 302, the movable member 301 is located at the other end of the supporting spring 303, the pressure sensor 304 is fixedly installed on the inner wall of the movable cavity 302, the movable member 301 is located on one side of the tile 4, the supporting spring 303 can push the movable member 301 to one side of the movable cavity 302, the movable member 301 is attached to the tile 4 on one side of the baffle 3, and the protruding portion of the movable member 301 is located in a gap between the tile 4 and the baffle 3, friction between the tile 4 and the baffle 3 can be reduced by setting the movable member 301, and when the rotor shaft is inclined axially, the tile 4 is pushed to tilt together, and the pressure sensor 304 is pushed to move towards the inside the movable cavity 302 when the tile 4 is inclined, so that the movable member 301 contacts the pressure sensor 304, thereby activating the pressure sensor 304, and the tile 4 can be better controlled by detecting data of the tilt state of the tile 4.
According to the invention, when the distance between the tile 4 and the inner wall of the shell 1 is required to be adjusted, the screwdriver is inserted into the adjusting hole 401, the adjusting piece 415 is driven to rotate by rotating the screwdriver, so that the connecting rod 407 is driven to rotate, when the connecting rod 407 rotates, the second transmission gear 410 and the first gear piece 409 can be driven to rotate by the first transmission gear 408 at one end, the second gear piece 411 meshed with the first transmission gear 410 can be driven to rotate by the rotation of the first gear piece 409, the threaded rod 412 can be driven to rotate by the rotation of the second gear piece 411, the movable frame 405 can be moved in the movable groove 404 by the rotation of the threaded rod 412, and therefore the position of the ball 406 can be adjusted by adjusting the position of the movable frame 405, the distance of the ball 406 protruding out of the movable groove 404 can be adjusted, and the distance between the tile 4 and the inner wall of the shell 1 can be adjusted; and when the rotor shaft is inclined axially, the tile 4 can be inclined together therewith, and by arranging the pressure sensor 304, the movable piece 301 can be pushed to move towards the inside of the movable cavity 302 when the tile 4 is inclined axially, so that the movable piece 301 is contacted with the pressure sensor 304 to activate the pressure sensor 304, and the inclination state of the tile 4 is judged by the detection data of the pressure sensor 304, so that the inclination condition of the tile 4 can be mastered better, and the use effect of the tilting pad bearing is ensured.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A tilting pad bearing with adjustable clearance, comprising:
A housing (1);
The tiles (4) are arranged in the shell (1), and the four tiles (4) are uniformly distributed in the shell (1);
The adjustable distance mechanism (2), the adjustable distance mechanism (2) is arranged inside the tile (4), the adjustable distance mechanism (2) comprises a movable frame (405), balls (406), a connecting rod (407), a first transmission gear (408), a first gear piece (409), a second transmission gear (410), a second gear piece (411) and a threaded rod (412), a movable groove (404) is formed in one side of the tile (4), the first gear piece (409) and the second gear piece (411) are in transmission connection in the movable groove (404), the threaded rod (412) is fixedly arranged inside the second gear piece (411), the movable frame (405) is in threaded connection with the threaded rod (412), the movable frame (405) is slidably arranged inside the movable groove (404), the balls (406) are movably connected inside the movable frame (405), the connecting rod (407) is rotatably connected inside the tile (4), the first transmission gear (408) is fixedly arranged at one end of the connecting rod (407), the first transmission gear (408) is meshed with the second transmission gear (410) and the second transmission gear (410) is fixedly arranged inside the first transmission gear (410), the connecting rod (407) is in transmission connection with the first gear piece (409) through the first transmission gear (408) and the second transmission gear (410), an adjusting hole (401) is formed in the side wall of the tile (4), an adjusting piece (415) is rotatably connected in the adjusting hole (401), the connecting rod (407) is fixedly arranged on one side of the adjusting piece (415), the first gear piece (409) is meshed with the second gear piece (411), and the distance adjusting mechanism (2) is used for adjusting the distance between the tile (4) and the inner wall of the shell (1) through adjusting the position of the ball (406);
The device also comprises a baffle plate (3), wherein the baffle plate (3) is fixedly arranged at two sides of the shell (1) through fixing bolts, and the tile (4) is limited in the shell (1) through the baffle plate (3);
The device also comprises a monitoring mechanism, wherein the monitoring mechanism is arranged inside the baffle (3) and is used for monitoring the inclination degree of the tile (4);
The monitoring mechanism comprises a movable piece (301), a movable cavity (302), a supporting spring (303) and a pressure sensor (304), wherein the movable cavity (302) is formed in one side of the baffle (3), one end of the supporting spring (303) is fixedly installed on the inner wall of the movable cavity (302), the movable piece (301) is movably connected inside the movable cavity (302), the movable piece (301) is located at the other end of the supporting spring (303), the pressure sensor (304) is fixedly installed on the inner wall of the movable cavity (302), and the movable piece (301) is located at one end, far away from the pressure sensor (304), of the supporting spring (303).
2. A gap-adjustable tilting pad bearing according to claim 1, wherein: at least two second gear members (411) are arranged and uniformly distributed along the first gear members (409).
3. A gap-adjustable tilting pad bearing according to claim 1, wherein: the movable frame (405) is internally provided with a thread groove (413) matched with the threaded rod (412), and the movable frame (405) is internally provided with a communication port (414) penetrating through the movable frame (405).
4. A gap-adjustable tilting pad bearing according to claim 1, wherein: the mounting hole (402) has been seted up to tile piece (4) one side, the one end of mounting spring (403) is fixed mounting in mounting hole (402), casing (1) is connected to mounting spring (403) other end.
5. A gap-adjustable tilting pad bearing according to claim 4, wherein: the novel inner lining is characterized in that an inner lining piece (5) is arranged in the shell (1), a groove (501) is formed in one side of the inner lining piece (5), one end of the mounting spring (403) is connected to the inside of the groove (501), and a rolling groove (502) is formed in the center of the inner lining piece (5).
6. A gap-adjustable tilting pad bearing according to claim 5, wherein: the rolling groove (502) is matched with the ball (406), and the ball (406) is positioned inside the rolling groove (502).
7. A gap-adjustable tilting pad bearing according to claim 1, wherein: the monitoring mechanism is provided with a plurality of monitoring mechanisms, and the monitoring mechanisms are uniformly distributed relative to the tiles (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411207576.5A CN118705262B (en) | 2024-08-30 | 2024-08-30 | A tilting pad bearing with adjustable clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411207576.5A CN118705262B (en) | 2024-08-30 | 2024-08-30 | A tilting pad bearing with adjustable clearance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118705262A CN118705262A (en) | 2024-09-27 |
| CN118705262B true CN118705262B (en) | 2024-11-12 |
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ID=92818692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411207576.5A Active CN118705262B (en) | 2024-08-30 | 2024-08-30 | A tilting pad bearing with adjustable clearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118705262B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112805466A (en) * | 2018-10-26 | 2021-05-14 | 安德里茨水电加拿大有限公司 | Variable guide bearing |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1192354A (en) * | 1966-06-14 | 1970-05-20 | Nat Res Dev | Gas-lubricated Shaft and Bearing Assembly |
| US3975065A (en) * | 1975-05-27 | 1976-08-17 | Sundstrand Corporation | Adjustable bearing assembly |
| DE2710706C2 (en) * | 1977-03-09 | 1982-04-08 | Siemens AG, 1000 Berlin und 8000 München | Radial guide bearing with bearing segments for machines with vertical shaft |
| DE102016216383A1 (en) * | 2016-08-31 | 2018-03-01 | Robert Bosch Gmbh | tilting pad |
| DE102017120578A1 (en) * | 2017-09-07 | 2019-03-07 | Voith Patent Gmbh | Tilting pad bearing, in particular Radialkippsegmentlager |
| CN212536424U (en) * | 2020-06-29 | 2021-02-12 | 青岛科技大学 | A hydrodynamic bearing |
| CN117905787A (en) * | 2023-11-24 | 2024-04-19 | 中国船舶集团有限公司第七0三研究所 | Tilting pad bearing for measuring dynamic force |
-
2024
- 2024-08-30 CN CN202411207576.5A patent/CN118705262B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112805466A (en) * | 2018-10-26 | 2021-05-14 | 安德里茨水电加拿大有限公司 | Variable guide bearing |
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| CN118705262A (en) | 2024-09-27 |
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