CN117905787A - Tilting pad bearing for measuring dynamic force - Google Patents
Tilting pad bearing for measuring dynamic force Download PDFInfo
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- CN117905787A CN117905787A CN202311589986.6A CN202311589986A CN117905787A CN 117905787 A CN117905787 A CN 117905787A CN 202311589986 A CN202311589986 A CN 202311589986A CN 117905787 A CN117905787 A CN 117905787A
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- tilting pad
- bearing
- cushion block
- sensor
- dynamic force
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- 230000000712 assembly Effects 0.000 claims abstract description 8
- 238000000429 assembly Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 8
- 230000005284 excitation Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention relates to a tilting pad bearing for measuring dynamic force, which is characterized in that a structure for installing a dynamic force sensor is added on the structure of the tilting pad bearing in the prior art, so that the tilting pad position can be flexibly adjusted, normal tilting pad bearing capacity is not influenced, the measurement of the dynamic force of the bearing is realized, and the tilting pad bearing for measuring the dynamic force comprises a bearing seat and a bearing shell; the tilting pad assembly comprises four groups of tilting pad assemblies, wherein each tilting pad assembly comprises a connecting bolt, a cushion block, a sensor, an adjusting gasket and a tilting pad; the bearing shell is arranged in the bearing seat, four groups of tilting pad assemblies are uniformly distributed on the inner side wall of the bearing shell along the radial direction, and four connecting bolts are uniformly distributed on the bearing shell along the radial direction, sequentially penetrate through the cushion block, the sensor and the adjusting gasket and are in threaded connection with the tilting pad. The invention belongs to the field of measuring dynamic force of a support bearing of a gearbox.
Description
Technical Field
The invention relates to a tilting pad bearing, in particular to a tilting pad bearing for measuring dynamic force. The invention belongs to the field of measuring dynamic force of a support bearing of a gearbox.
Background
The vibration test mode of the gear transmission device is to paste a sensor on the shell of the box body, the test part reflects the running state and vibration characteristic of the gear transmission device, and the vibration test mode is a method for indirectly reflecting the overall running stability of the gear. And the visual excitation source of the gear transmission device cannot be measured and analyzed, if the related test can be carried out, the excitation source of vibration noise can be accurately identified, and a basis is provided for vibration reduction and noise reduction.
The bearing is a necessary path for the transmission device to generate excitation and transmit the excitation to the box body, the excitation can enable the bearing to generate dynamic force, and through the test of the dynamic force of the bearing, the direct dynamic excitation for the transmission of the gear transmission device to the ship body mounting base can be obtained, so that the most direct and effective basis is provided for the vibration estimation and the comprehensive vibration control of the gear box. The measuring principle of the sensor is fully considered in the design of the bearing structure, and the optimization test of the bearing structure is a key for realizing the dynamic force test of the bearing.
Disclosure of Invention
The tilting pad bearing is characterized in that a structure for installing a dynamic force sensor is added to the structure of the tilting pad bearing in the prior art, so that the tilting pad position is flexibly adjusted, the normal tilting pad bearing capacity is not influenced, the measurement of the dynamic force of the bearing is realized, and the tilting pad bearing for measuring the dynamic force is further provided.
The technical scheme of the invention is as follows:
A tilting pad bearing for measuring dynamic force comprises a bearing seat and a bearing shell; the tilting pad assembly comprises four groups of tilting pad assemblies, wherein each tilting pad assembly comprises a connecting bolt, a cushion block, a sensor, an adjusting gasket and a tilting pad;
The bearing shell is arranged in the bearing seat, four groups of tilting pad assemblies are uniformly distributed on the inner side wall of the bearing shell along the radial direction, and four connecting bolts are uniformly distributed on the bearing shell along the radial direction, sequentially penetrate through the cushion block, the sensor and the adjusting gasket and are in threaded connection with the tilting pad.
Further, the tilting pad is an arc block, the cushion block is a rectangular backing plate, a sensor mounting groove is formed in the outer cambered surface of the tilting pad, the sensor and the adjusting gasket are mounted in the sensor mounting groove of the tilting pad, the cushion block is buckled on the outer cambered surface of the tilting pad, and the threaded end of the connecting bolt sequentially penetrates through the cushion block, the sensor and the adjusting gasket and is in threaded connection with the tilting pad.
Further, the outer side surface of the cushion block is a spherical surface, and the spherical surface of the cushion block is in contact with the inner side wall of the bearing shell.
Further, the bearing further comprises two baffle rings and a plurality of fixing bolts, grooves are formed in the side faces of the two sides of the bearing shell, the two baffle rings are oppositely arranged on the two sides of the bearing shell, and each baffle ring is fixedly arranged on the bearing shell through the fixing bolts.
Further, cushion block placing grooves are formed in the inner side wall of each baffle ring, and protrusions at two ends of each cushion block are respectively arranged in the cushion block placing grooves of the baffle rings.
Further, a spherical groove is formed in the inner side wall of the bearing seat, a spherical protrusion is formed in the outer side wall of the bearing shell, and the spherical protrusion of the bearing shell is matched and installed in the spherical groove of the bearing seat.
Compared with the prior art, the invention has the following effects:
1. The application adds the structure for installing the dynamic force sensor on the basis of the prior art, can flexibly adjust the positions of a plurality of tilting pads, does not influence the bearing capacity of the normal tilting pads, and simultaneously realizes the measurement of the dynamic force of the bearing. The application is a novel technology with simple processing, wide application and high reliability, and is particularly suitable for gearboxes with high vibration requirements. The structure of the application also has the advantages of strong adjusting capability, simple structure and convenient processing and installation.
2. The tilting pad bearing is suitable for gearboxes with high vibration requirements. The dynamic force measuring sensor is arranged below the tilting pad and is used for measuring the dynamic force of the supporting bearing of the gear box, so that the direct dynamic excitation transmitted by the gear transmission device to the ship body mounting base is obtained, and the most direct and effective basis is provided for the vibration control of the gear box.
3. According to the application, the dynamic force of the bearing is measured in two degrees of freedom directions at four positions of the bearing shell, so that the dynamic excitation transmitted by the gear transmission device to the box body is directly obtained, and the vibration analysis and evaluation are supported.
Drawings
FIG. 1 is a schematic view of a tilting pad bearing of the present application.
Fig. 2 is a view in the A-A direction of fig. 1.
Detailed Description
The first embodiment is as follows: 1-2, a tilting pad bearing for measuring dynamic force of the present embodiment includes a bearing housing 1 and a bearing housing 2; the tilting pad assembly comprises four groups of tilting pad assemblies, wherein each tilting pad assembly comprises a connecting bolt 3, a cushion block 4, a sensor 5, an adjusting gasket 6 and a tilting pad 7;
the bearing housing 2 is arranged in the bearing seat 1, four groups of tilting pad assemblies are uniformly distributed on the inner side wall of the bearing housing 2 along the radial direction, four connecting bolts 3 are uniformly distributed on the bearing housing 2 along the radial direction, and the connecting bolts 3 sequentially penetrate through the cushion block 4, the sensor 5 and the adjusting gasket 6 and are in threaded connection with the tilting pad 7.
In the application, a tilting pad is arranged in a bearing shell, a strain type pressure measuring sensor 5 and an adjusting gasket 6 are arranged in the tilting pad 7, a cushion block 4 is arranged below the sensor 5, and the tilting pad 7 and the tested sensor 5 are positioned. The number of the tilting pads 7 is four, the angles of two adjacent tilting pads 7 are 90 degrees, the sensor 5 is designed in four directions of two degrees of freedom, and the vector sum of measured values in the orthogonal directions can obtain dynamic bearing force in any direction. The strain type pressure measuring sensor 5 is based on the principle of elastic deformation, and the measured pressure acts on an elastic element of the sensor to deform the elastic element, and the magnitude of the elastic strain is used to represent the magnitude of the pressure. According to the application, the spherical installation of the tilting pad 7 and the bearing seat 1 counteracts the influence of other medium factors, and accurate dynamic bearing force is obtained.
The second embodiment is as follows: referring to fig. 1-2, a tilting pad bearing for measuring dynamic force according to this embodiment is described, a tilting pad 7 is an arc-shaped block, a cushion block 4 is a rectangular pad, a sensor mounting groove is formed in an outer arc surface of the tilting pad 7, a sensor 5 and an adjusting pad 6 are mounted in the sensor mounting groove of the tilting pad 7, a cushion block 4 is fastened on the outer arc surface of the tilting pad 7, and a threaded end of a connecting bolt 3 sequentially passes through the cushion block 4, the sensor 5 and the adjusting pad 6 and is in threaded connection with the tilting pad 7. Other compositions and connection relationships are the same as those of the first embodiment.
In this embodiment, the adjusting pad 6 is used to adjust the installation position of four tilting pads 7, the cushion block 4 and the bearing housing 2 are connected and positioned by special connecting bolts 3, and the four tilting pads 7 are evenly distributed in the circumferential direction and are arranged at an angle of 90 degrees.
And a third specific embodiment: referring to fig. 1 to 2, a tilting pad bearing for measuring dynamic force according to this embodiment is described, wherein the outer surface of a pad 4 is a spherical surface, and the spherical surface of the pad 4 is in contact with the inner side wall of a bearing housing 2. Other compositions and connection relationships are the same as those of the first embodiment.
The specific embodiment IV is as follows: referring to fig. 1-2, a tilting pad bearing for measuring dynamic force according to this embodiment further includes two retaining rings and a plurality of fixing bolts, grooves are formed on the side surfaces of both sides of the bearing housing 2, the two retaining rings are oppositely disposed on both sides of the bearing housing 2, and each retaining ring is fixedly mounted on the bearing housing 2 through the plurality of fixing bolts. Other compositions and connection relationships are the same as those of the first embodiment.
Fifth embodiment: referring to fig. 1-2, a tilting pad bearing for measuring dynamic force according to this embodiment is described, in which a spacer block groove is formed in an inner sidewall of each retainer ring, and protrusions at both ends of each spacer block 4 are respectively disposed in the spacer block grooves of the retainer ring. Other compositions and connection relationships are the same as those of the fourth embodiment.
Specific embodiment six: the present embodiment will be described with reference to fig. 1 to 2, which is a tilting pad bearing for measuring dynamic force, and is characterized in that: the inner side wall of the bearing seat 1 is provided with a spherical groove, the outer side wall of the bearing shell 2 is provided with a spherical bulge, and the spherical bulge of the bearing shell 2 is matched and installed in the spherical groove of the bearing seat 1. Other compositions and connection relationships are the same as those of the first embodiment.
According to the application, the first gap d between the connecting bolt 3 and the cushion block 4, between the sensor 5 and the adjusting gasket 6, and the second gap b between the outer spherical surface of the cushion block 4 and the bearing shell 2 ensure that the tile 7 can swing, and the centering error is compensated, so that the stress direction can uniformly act on the sensor. The third clearance c between the sensor 5 and the sensor mounting groove of the tilting pad 7 is beneficial to the mounting of the sensor 5, the adjusting gasket 6 can be increased or decreased according to the thickness of the combined mounting to realize the same circle at the center of the tilting pad, and the diameter of the tilting pad bearing assembly reaches the design value phia, and the diameter of the tilting pad bearing assembly is the diameter of the circle formed by the inner arcs of the four tilting pads 7. The bearing seat 1 and the bearing shell 2 are arranged in a spherical surface, so that the external centering influence is further compensated. And leading out the sensor wire at the end face for data acquisition.
The present invention has been described in terms of preferred embodiments, but is not limited to the invention, and any equivalent embodiments can be made by those skilled in the art without departing from the scope of the invention, as long as the equivalent embodiments are possible using the above-described structures and technical matters.
Claims (6)
1. A tilting pad bearing for measuring dynamic force comprises a bearing seat (1) and a bearing shell (2); the method is characterized in that: the tilting pad assembly comprises four groups of tilting pad assemblies, wherein each tilting pad assembly comprises a connecting bolt (3), a cushion block (4), a sensor (5), an adjusting gasket (6) and a tilting pad (7);
The bearing housing (2) is arranged in the bearing seat (1), four groups of tilting pad assemblies are uniformly distributed on the inner side wall of the bearing housing (2) along the radial direction, four connecting bolts (3) are uniformly distributed on the bearing housing (2) along the radial direction, and the connecting bolts (3) sequentially penetrate through the cushion block (4), the sensor (5) and the adjusting gasket (6) and are in threaded connection with the tilting pad (7).
2. A tilting pad bearing for measuring dynamic forces according to claim 1, wherein: the tilting pad (7) is an arc block, the cushion block (4) is a rectangular cushion plate, a sensor mounting groove is processed on the outer cambered surface of the tilting pad (7), the sensor (5) and the adjusting gasket (6) are mounted in the sensor mounting groove of the tilting pad (7), the cushion block (4) is buckled on the outer cambered surface of the tilting pad (7), and the threaded end of the connecting bolt (3) sequentially penetrates through the cushion block (4), the sensor (5) and the adjusting gasket (6) and is in threaded connection with the tilting pad (7).
3. A tilting pad bearing for measuring dynamic forces according to claim 1, wherein: the outer side surface of the cushion block (4) is a spherical surface, and the spherical surface of the cushion block (4) is in contact with the inner side wall of the bearing shell (2).
4. A tilting pad bearing for measuring dynamic forces according to claim 1, wherein: the novel bearing further comprises two baffle rings and a plurality of fixing bolts, grooves are formed in the side faces of two sides of the bearing housing (2), the two baffle rings are oppositely arranged on two sides of the bearing housing (2), and each baffle ring is fixedly arranged on the bearing housing (2) through the plurality of fixing bolts.
5. A tilting pad bearing for measuring dynamic forces according to claim 4 and wherein: a cushion block placing groove is processed on the inner side wall of each baffle ring, and the bulges at the two ends of each cushion block (4) are respectively arranged in the cushion block placing grooves of the baffle rings.
6. A tilting pad bearing for measuring dynamic forces according to claim 1, wherein: the inner side wall of the bearing seat (1) is provided with a spherical groove, the outer side wall of the bearing shell (2) is provided with a spherical bulge, and the spherical bulge of the bearing shell (2) is matched and installed in the spherical groove of the bearing seat (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311589986.6A CN117905787A (en) | 2023-11-24 | 2023-11-24 | Tilting pad bearing for measuring dynamic force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311589986.6A CN117905787A (en) | 2023-11-24 | 2023-11-24 | Tilting pad bearing for measuring dynamic force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117905787A true CN117905787A (en) | 2024-04-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311589986.6A Pending CN117905787A (en) | 2023-11-24 | 2023-11-24 | Tilting pad bearing for measuring dynamic force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117905787A (en) |
-
2023
- 2023-11-24 CN CN202311589986.6A patent/CN117905787A/en active Pending
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