Spherical support tilting pad sliding thrust bearing and elastic support structure thereof

Abstract

The invention discloses a spherical support tilting pad sliding thrust bearing and an elastic support structure thereof. Relates to the field of thrust bearings. An existing tilting-pad sliding thrust bearing is large in bearing capacity, point supporting, line supporting or elastic supporting structures are usually selected for supporting, but the swing flexibility of the bearing can be affected in the long-time use process of the existing tilting-pad sliding thrust bearing. The bearing comprises a bearing seat and a lantern ring, the lantern ring, elastic beams, spherical pairs and thrust pads are installed in the bearing seat, the thrust pads and the elastic beams are connected through the spherical pairs, the multiple sets of elastic beams are installed in the lantern ring in an annular structure, and the spherical pairs are installed at the circle center of each elastic beam. The elastic beam and the spherical pair form a complete tilting pad spherical supporting thrust bearing device, and after the thrust pads are loaded, the overhigh thrust pads are consistent with other pads in height through self elastic deformation of the elastic beam structure. The invention is applied to the field of thrust bearing support.

Description

Technical Field

[0001] The invention relates to the field of thrust bearings, and in particular to a spherical support tilting pad sliding thrust bearing and an elastic support structure thereof. Background Art

[0002] In engineering technology applications, tilting pad thrust bearings are usually used in large bearings because of their large load-bearing capacity and wide speed range. Tilt pad thrust bearings are composed of several relatively independent and flexibly swingable pads. In the bearing design process, in order to ensure that the pads can swing flexibly, their support usually uses point support, line support or elastic support structure. However, in long-term use, point support and line support structures will cause deformation of the support points, which will affect the swing flexibility of the bearing. In severe cases, it will cause changes in the position of the support points and affect the overall performance of the bearing.

[0003] At the same time, the tilting pad sliding thrust bearing is composed of several relatively independent pads, which requires that the processing thickness of the thrust bearing pads be as consistent as possible, and puts forward high requirements for processing. Generally, they are made in a matching form, but this cannot guarantee that the height of all pads is completely consistent. In addition, factors such as the deflection of the thrust plate and assembly errors will also cause inconsistent forces between the pads. The force on individual pads will increase, and the temperature will rise, which may lead to a reduction in the life of the high-temperature pads, thereby affecting the reliability of the entire thrust bearing. Although a balancing block structure can be used to solve the problem of uneven force on the pads, the balancing block structure is difficult to process and the overall space of the bearing is increased. Summary of the invention

[0004] In order to solve the problem that the existing tilting pad sliding thrust bearing has a large load-bearing capacity and its support usually adopts point support, line support or elastic support structure, but the swing flexibility of the bearing will be affected during long-term use, the present invention provides a spherical support tilting pad sliding thrust bearing and its elastic support structure, which enhances the support reliability and swing flexibility and improves the impact resistance of the thrust bearing.

[0005] The technical solution of the present invention is:

[0006] A spherical support tilting pad sliding thrust bearing and an elastic support structure thereof, comprising a bearing seat and a collar, wherein the collar is installed inside the bearing seat, and the spherical support tilting pad sliding thrust bearing and an elastic support structure thereof further comprise an elastic beam, a spherical pair and a thrust pad, wherein the thrust pad is connected to the elastic beam via a spherical pair, and the thrust pad is supported by the spherical pair;

[0007] The elastic beams are multiple groups of elastic beams, and the multiple groups of elastic beams are installed in the ring in an annular structure, and the spherical pair is installed at the center position of each elastic beam, and each spherical pair corresponds to a thrust pad;

[0008] The elastic beam and the spherical pair form a complete tilting pad spherical support thrust bearing device. When the thrust pad is subjected to a load, the excessively high thrust pad is adjusted to be consistent with the height of other pads through the elastic deformation of the elastic beam structure.

[0009] Furthermore, the elastic beam as a whole is a hole beam structure, a convex structure is provided at the center of the elastic beam, and each elastic beam is installed in a ring as a whole;

[0010] The height of the collar is higher than that of the elastic beam, and both ends of the elastic beam are in contact with the inner wall of the collar, and the elastic beam is installed through the collar.

[0011] Furthermore, the spherical pair includes a positioning block and a sphere;

[0012] The top and bottom of the sphere are planar structures, and a weight-reducing process hole is opened at the center of the sphere;

[0013] The upper port of the positioning block is an arc-shaped surface structure, and the arc-shaped surface of the positioning block supports the arc-shaped surface of the sphere;

[0014] The positioning block and the ball are used in combination, and the spherical surface of the sphere is rotatably connected with the arc surface of the positioning block to form an axial joint bearing, so that the ball can rotate in the positioning block, and the bottom of the thrust pad is supported by the ball of the spherical pair.

[0015] Furthermore, the thrust pad structure and the spherical pair match each other, and the top of the thrust pad is a planar structure, the bottom of the thrust pad is a cylindrical groove structure, and the top of the sphere is inserted into the cylindrical groove at the bottom of the thrust pad. When the sphere rotates, the thrust pad is driven to rotate synchronously, so that the thrust pad forms a supporting structure through the spherical pair.

[0016] Furthermore, the elastic beam is a three-beam or four-beam or beamless thin-walled structure;

[0017] When the elastic beam is a three-beam thin-walled structure, three fan-shaped supports are arranged in the elastic beam at 120 degrees, and the center of the elastic beam is a convex structure, and the positioning block of the spherical pair is installed between the three fan-shaped supports;

[0018] When the elastic beam is a four-beam thin-walled structure, four fan-shaped supports are arranged at 90 degrees in the elastic beam, and the center of the elastic beam is a convex structure, and the positioning block of the spherical pair is installed between the four fan-shaped supports;

[0019] When the elastic beam is a beamless thin-walled structure, the elastic beam forms a lower cavity and an upper cavity through a transverse thin wall, wherein the center of the upper cavity is a convex structure, and the positioning block of the spherical pair is installed at the center of the elastic beam.

[0020] Furthermore, the elastic beam and the spherical pair form a complete tilting pad spherical support thrust bearing device for bearing the thrust of the rotating shaft, and the rotating shaft is connected to the thrust plate;

[0021] Furthermore, when the thrust pads are subjected to thrust from the thrust plate, the thrust pads with excessive thickness are subjected to force first, and the thrust pads compress the elastic beam structure to cause elastic deformation, so that the heights of the thrust pads are consistent, achieving relative force balance.

[0022] Furthermore, when the spherical pair is installed in reverse between the elastic beam and the thrust pad, there is a protruding structure at the center of the elastic beam, which is used to position the sphere of the spherical pair. The plane of the sphere of the spherical pair fits with the plane of the elastic beam, and the elastic beam supports the sphere of the spherical pair.

[0023] Furthermore, when the spherical pair is installed in reverse between the elastic beam and the thrust pad, the bottom plane of the sphere of the spherical pair is connected to the elastic beam, the arc surface of the sphere of the spherical pair is connected to the arc surface of the positioning block, and the positioning block of the spherical pair is installed in the cylindrical groove at the bottom of the thrust pad, and the thrust pad is supported by the positioning block.

[0024] Furthermore, when the spherical pair is installed in reverse between the elastic beam and the thrust pad, the bottom of the thrust pad is a cylindrical groove structure, and the positioning block of the spherical pair is embedded in the cylindrical groove at the bottom of the thrust pad, and the positioning block above the sphere is supported by the sphere of the spherical pair, and the same swing characteristics are obtained by the reverse installation of the sphere and the positioning block of the spherical pair.

[0025] Compared with the prior art, the present invention has the following effects:

[0026] The present invention uses a spherical support tilting pad sliding thrust bearing and its elastic support structure, which can not only solve the problem of deformation of the support point, but also solve the problem of uneven force on the thrust pad to a certain extent. At the same time, since there is no deformation of the support point after the pad is used, the later maintenance cost is reduced. At the same time, the tilting pad thrust bearing of this structure has strong impact resistance, reliable performance, convenient maintenance, and can work reliably for a long time.

[0027] The present invention changes the original point support or line support structure of the tilting pad thrust bearing pad and replaces it with a spherical auxiliary support structure. The spherical auxiliary structure has a large contact area and will not cause fulcrum deformation during long-term use, while having flexible swing characteristics. The sleeve ring is used to install the thrust pad. Several thrust pads are evenly installed on the sleeve ring. An elastic beam structure is added to each spherical auxiliary fulcrum position on the sleeve ring. When the height of individual pads is too high, the elastic beam will undergo elastic deformation, thereby alleviating the temperature increase of the thick thrust bearing pads.

[0028] The present invention uses a spherical auxiliary support structure on the original thrust bearing structure, which solves the problems of wear and deformation of the fulcrum of the thrust bearing pad. At the same time, the elastic beam structure used can alleviate the technical problem of uneven force on the thrust bearing pad. At the same time, since each tilting pad is equipped with an elastic beam structure, when the thrust bearing receives an impact load, the elastic beam structure can effectively alleviate the impact force caused by the external load through elastic deformation, thereby improving the overall impact resistance and reliability of the thrust bearing. Moreover, the application of the spherical auxiliary structure can also improve the interchangeability of the thrust bearing during maintenance and reduce maintenance costs.

[0029] The present invention avoids deformation of the thrust pad fulcrum and adjusts the temperature rise problem caused by the thrust pad height error and the impact caused by the external impact load, thereby improving the overall reliability and stability of the thrust bearing. The support mode of the tilting pad thrust bearing pad is changed to spherical support, and an elastic beam structure is added to the lower part of the spherical support. The elastic beam is installed with a collar to form a complete tilting pad spherical support thrust bearing device. When subjected to load, the excessively high thrust pad is consistent with the height of other pads due to the elastic deformation of the elastic beam structure, ensuring relatively balanced force. At the same time, the use of the spherical structure increases the service life of the tilting pad thrust bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] In the figure: the position of part 3 is a schematic diagram after removing parts 4 and 5; the position of part 4 is a schematic diagram after removing part 5;

[0032] Figure 2 for Figure 1 AA section view in;

[0033] Figure 3 for Figure 1 BB section view in;

[0034] Figure 4 for Figure 3 Schematic diagram of the structure when the thrust pad in the figure swings;

[0035] Figure 5It is a reverse installation cross-sectional view of the spherical support structure;

[0036] Figure 6 It is a schematic diagram of the structure of a three-beam thin-walled component with an elastic beam;

[0037] Figure 7 yes Figure 6 CC section view;

[0038] Figure 8 It is a schematic diagram of the structure of a four-beam thin-walled component;

[0039] Fig. 9 yes Figure 8 DD cross-sectional view;

[0040] Fig.10 It is a schematic diagram of the structure of a beamless thin-walled part;

[0041] Fig.11 yes Fig.10 EE cross-sectional view;

[0042] In the figure: 1. bearing seat, 2. sleeve ring, 3. elastic beam, 4. spherical pair, 5. thrust pad, 6. rotating shaft, 7. thrust plate, 8. dynamic pressure oil film, 31. protruding structure, 41. positioning block, 42. sphere, 43. weight reduction process hole. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0044] Specific implementation method 1: Combination Figure 1 and Figure 2 The present embodiment is described. A spherical support tilting pad sliding thrust bearing and an elastic support structure thereof are provided in the present embodiment. The components thereof include a bearing seat 1 and a collar 2. The collar 2 is installed inside the bearing seat 1. The spherical support tilting pad sliding thrust bearing and an elastic support structure thereof also include an elastic beam 3, a spherical pair 4 and a thrust pad 5. The thrust pad 5 is connected to the elastic beam 3 via the spherical pair 4, and the thrust pad 5 is supported by the spherical pair 4.

[0045] The elastic beams 3 are multiple groups of elastic beams 3, and the multiple groups of elastic beams 3 are installed in the ring 2 in an annular structure, and the spherical pair 4 is installed at the center position of each elastic beam 3, and each spherical pair 4 corresponds to a thrust pad 5;

[0046] The elastic beam 3 and the spherical pair 4 form a complete tilting pad spherical support thrust bearing device. When the thrust pad 5 is subjected to load, the excessively high thrust pad 5 is elastically deformed by the elastic beam 3 structure itself to be consistent with the height of other pads.

[0047] Specific implementation method 2: Combination Figure 1 and Figure 2 This embodiment is described. This embodiment is a spherical support tilting pad sliding thrust bearing and its elastic support structure. The elastic beam 3 is a hole beam structure as a whole. A protrusion structure 31 is provided at the center of the elastic beam 3, and each of the elastic beams 3 is installed in the ring 2 as a whole.

[0048] The height of the collar 2 is higher than that of the elastic beam 3 , and both ends of the elastic beam 3 are in contact with the inner wall of the collar 2 , so that the elastic beam 3 is installed through the collar 2 .

[0049] The collar 2 is used to install the thrust pad 5. Several thrust pads 5 are evenly installed on the collar 2. An elastic beam 3 structure is added to each spherical pair 4 fulcrum position on the collar 2. When the height of individual thrust pads 5 is too high, the elastic beam 3 will undergo elastic deformation, thereby alleviating the temperature increase of the thick thrust bearing pads.

[0050] Specific implementation method three: Combination Figure 1 and Figure 2 This embodiment is described. This embodiment is a spherical support tilting pad sliding thrust bearing and its elastic support structure. The spherical pair 4 includes a positioning block 41 and a ball 42;

[0051] The top and bottom of the sphere 42 are planar structures, and a weight-reducing process hole 43 is opened at the center of the sphere 42;

[0052] The upper port of the positioning block 41 is an arc-shaped surface structure, and the arc-shaped surface of the positioning block 41 supports the arc-shaped surface of the sphere 42;

[0053] The positioning block 41 and the ball 42 are used in conjunction with each other, and the spherical surface of the ball 42 is rotatably connected with the arc surface of the positioning block 41 to form an axial joint bearing, so that the ball 42 can rotate in the positioning block 41, and the bottom of the thrust pad 5 is supported by the ball 42 of the spherical pair 4.

[0054] A spherical sub-support structure is used on the original thrust bearing structure to solve the problems of wear and deformation of the fulcrum caused by the thrust bearing pad fulcrum. At the same time, the elastic beam structure used can alleviate the technical problem of uneven force on the thrust bearing pad. At the same time, since each tilting pad is equipped with an elastic beam structure, when the thrust bearing receives an impact load, the elastic beam structure can effectively alleviate the impact force caused by the external load through elastic deformation, thereby improving the overall impact resistance and reliability of the thrust bearing. Moreover, the application of the spherical sub-structure can also improve the interchangeability of the thrust bearing during maintenance and reduce maintenance costs.

[0055] Specific implementation method four: Combination Figure 3 — Figure 4 The present embodiment is described as a spherically supported tilting pad sliding thrust bearing and its elastic support structure, wherein the thrust pad 5 structure matches the spherical pair 4, and the top of the thrust pad 5 is a planar structure, the bottom of the thrust pad 5 is a cylindrical groove structure, and the top of the ball 42 is inserted into the cylindrical groove at the bottom of the thrust pad 5. When the ball 42 rotates, it drives the thrust pad 5 to rotate synchronously, so that the thrust pad 5 forms a support structure through the spherical pair 4.

[0056] A spherical pair 4 is installed on each thrust pad 5, and the spherical pair 4 is connected to the elastic beam 3. The elastic beam 3 is a 3-hole beam structure, and then the whole is placed in the ring 2. There are a total of 8 circular thrust pads. The thrust bearing device composed is placed in the bearing seat 1. The thrust bearing is used to bear the thrust of the rotating shaft 6.

[0057] Specific implementation method five: Combination Figure 1 — Figure 4 The present embodiment is described. The present embodiment is a spherical support tilting pad sliding thrust bearing and its elastic support structure. The elastic beam 3 and the spherical pair 4 form a complete tilting pad spherical support thrust bearing device for bearing the thrust of the rotating shaft 6, and the rotating shaft 6 is connected to the thrust plate 7.

[0058] Specific implementation method six: Combination Figure 1 — Figure 4 The present embodiment is described as a spherical supported tilting pad sliding thrust bearing and its elastic support structure. When the thrust pad 5 is subjected to the thrust of the thrust plate 7, the thrust pad 5 with excessive thickness is subjected to the force first, and the thrust pad 5 compresses the elastic beam 3 structure to cause elastic deformation, so that the heights of the thrust pads 5 are consistent, thereby achieving relative force balance.

[0059] When the height difference between the thrust pad 5 with excessive thickness and other thrust pads is σ1, when subjected to the thrust of the thrust plate 7, the thrust pad 5 with excessive thickness is first subjected to force, which compresses the elastic beam 3 structure to undergo elastic deformation, so that the heights of the thrust pads are consistent, and finally the force is relatively balanced. At this time, the elastic deformation of the elastic beam 3 is σ2, and σ1=σ2;

[0060] The thrust pad 5 is deflected by the force of the dynamic pressure oil film 8 with the spherical pair 4 as the fulcrum. At this time, the deflection angle is α, and the spherical radius of the spherical pair 4 is β.

[0061] Specific implementation method seven: Combination Figure 5 This embodiment is described. This embodiment is a spherical support tilting pad sliding thrust bearing and its elastic support structure. When the spherical pair 4 is installed in reverse with the elastic beam 3 and the thrust pad 5, the center of the elastic beam 3 has a protruding structure 31. The protruding structure 31 is used to position the ball 42 of the spherical pair 4. The plane of the ball 42 of the spherical pair 4 fits with the plane of the elastic beam 3. The elastic beam 3 supports the ball 42 of the spherical pair 4. The same swing characteristics and a more compact structural layout are obtained by the reverse installation of the ball 42 of the spherical pair 4 and the positioning block 41.

[0062] Specific implementation method eight: Combination Figure 5 The present embodiment is described. The present embodiment is a spherical support tilting pad sliding thrust bearing and its elastic support structure. When the spherical pair 4 is installed in reverse with the elastic beam 3 and the thrust pad 5, the bottom plane of the sphere 42 of the spherical pair 4 is connected to the elastic beam 3, the arc surface of the sphere 42 of the spherical pair 4 is connected to the arc surface of the positioning block 41, and the positioning block 41 of the spherical pair 4 is installed in the cylindrical groove at the bottom of the thrust pad 5, and the thrust pad 5 is supported by the positioning block 41. The same swing characteristics and a more compact structural layout are obtained by the reverse installation of the sphere 42 of the spherical pair 4 and the positioning block 41.

[0063] Specific implementation method nine: Combination Figure 5 The present embodiment is described. The present embodiment is a spherical support tilting pad sliding thrust bearing and its elastic support structure. When the spherical pair 4 is reversely installed between the elastic beam 3 and the thrust pad 5, the bottom of the thrust pad 5 is a cylindrical groove structure, and the positioning block 41 of the spherical pair 4 is embedded in the cylindrical groove at the bottom of the force pad 5. The positioning block 41 above the ball 42 is supported by the ball 42 of the spherical pair 4. The same swing characteristics and a more compact structural layout are obtained by reverse installation of the ball 42 of the spherical pair 4 and the positioning block 41.

[0064] When the spherical pair 4 is installed in the forward or reverse direction with the elastic beam 3 and the thrust pad 5, the support mode of the tilting pad thrust bearing pad is changed to spherical support, and at the same time, an elastic beam 3 structure is added to the lower part of the spherical pair 4, and the elastic beam 3 is installed in conjunction with the collar 2 to form a complete tilting pad spherical support thrust bearing device. When subjected to load, the over-high thrust pad 5 is consistent with the height of other thrust pads 5 due to the elastic deformation of the elastic beam 3 structure, ensuring relatively balanced force, and at the same time, the use of the spherical structure increases the service life of the tilting pad thrust bearing.

[0065] Specific implementation method ten: Combination Figure 6 — Fig.11 This embodiment is described. This embodiment is a spherical support tilting pad sliding thrust bearing and its elastic support structure. The elastic beam 3 is a three-beam or four-beam or beamless thin-walled structure.

[0066] When the elastic beam 3 is a three-beam thin-walled structure, three fan-shaped supports are arranged in the elastic beam 3 at 120 degrees, and the center of the elastic beam 3 is a convex structure 31, and the positioning block 41 of the spherical pair 4 is installed between the three fan-shaped supports;

[0067] When the elastic beam 3 is a four-beam thin-walled structure, four fan-shaped supports are arranged at 90 degrees in the elastic beam 3, and the center of the elastic beam 3 is a convex structure 31, and the positioning block 41 of the spherical pair 4 is installed between the four fan-shaped supports;

[0068] When the elastic beam 3 is a beamless thin-walled structure, the elastic beam 3 forms a lower cavity and an upper cavity through a transverse thin wall, wherein the center of the upper cavity is a convex structure 31 , and the positioning block 41 of the spherical pair 4 is installed at the center of the elastic beam 3 .

[0069] The above is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent replacement and improvement made to the above embodiments without departing from the content of the technical solution of the present invention, based on the technical essence of the present invention, within the spirit and principles of the present invention, still fall within the protection scope of the technical solution of the present invention.

Claims

1. A spherical support tilting pad sliding thrust bearing and an elastic support structure thereof, comprising a bearing seat (1) and a collar (2), wherein the collar (2) is installed inside the bearing seat (1), characterized in that: The spherical support tilting pad sliding thrust bearing and its elastic support structure also include an elastic beam (3), a spherical pair (4) and a thrust pad (5); the thrust pad (5) is connected to the elastic beam (3) via the spherical pair (4), and the thrust pad (5) is supported by the spherical pair (4); The elastic beams (3) are multiple groups of elastic beams (3), and the multiple groups of elastic beams (3) are installed in the sleeve ring (2) in an annular structure, and the spherical pair (4) is installed at the center position of each elastic beam (3), and each spherical pair (4) corresponds to a thrust pad (5); The elastic beam (3) and the spherical pair (4) form a complete tilting pad spherical support thrust bearing device. When the thrust pad (5) is subjected to a load, the thrust pad (5) that is too high is aligned with the height of other pads through the elastic deformation of the elastic beam (3) structure.

2. The spherical support tilting pad sliding thrust bearing and its elastic support structure according to claim 1, characterized in that: The elastic beam (3) is a hole beam structure as a whole, a protrusion structure (31) is provided at the center of the elastic beam (3), and each elastic beam (3) is installed in the ring (2) as a whole; The height of the collar (2) is higher than the height of the elastic beam (3); both ends of the elastic beam (3) are in contact with the inner wall of the collar (2); and the elastic beam (3) is installed through the collar (2).

3. The spherical support tilting pad sliding thrust bearing and its elastic support structure according to claim 1, characterized in that: The spherical pair (4) comprises a positioning block (41) and a sphere (42); The top and bottom of the sphere (42) are planar structures, and a weight-reducing process hole (43) is opened at the center of the sphere (42); The positioning block (41) has an upper port portion with an arc-shaped surface structure, and the arc-shaped surface of the positioning block (41) supports the arc-shaped surface of the sphere (42); The positioning block (41) and the ball (42) are used in conjunction with each other, and the spherical surface of the ball (42) is rotatably connected to the arc surface of the positioning block (41) to form an axial joint bearing, so that the ball (42) can rotate in the positioning block (41), and the bottom of the thrust pad (5) is supported by the ball (42) of the spherical pair (4).

4. The spherical support tilting pad sliding thrust bearing and its elastic support structure according to claim 1, characterized in that: The thrust pad (5) structure matches the spherical pair (4), and the top of the thrust pad (5) is a planar structure, and the bottom of the thrust pad (5) is a cylindrical groove structure. The top of the sphere (42) is inserted into the cylindrical groove at the bottom of the thrust pad (5). When the sphere (42) rotates, it drives the thrust pad (5) to rotate synchronously, so that the thrust pad (5) forms a support structure through the spherical pair (4); A dynamic pressure oil film (8) is provided at the top end of the thrust pad (5).

5. The spherical support tilting pad sliding thrust bearing and its elastic support structure according to claim 2, characterized in that: The elastic beam (3) is a three-beam or four-beam or beamless thin-walled structure; When the elastic beam (3) is a three-beam thin-walled structure, three fan-shaped supports are arranged in the elastic beam (3) at an angle of 120 degrees, and the center of the elastic beam (3) is a convex structure (31), and the positioning block (41) of the spherical pair (4) is installed between the three fan-shaped supports; When the elastic beam (3) is a four-beam thin-walled structure, four fan-shaped supports are arranged at 90 degrees inside the elastic beam (3), and the center of the elastic beam (3) is a convex structure (31), and the positioning block (41) of the spherical pair (4) is installed between the four fan-shaped supports; When the elastic beam (3) is a beamless thin-walled structure, the elastic beam (3) forms a lower cavity and an upper cavity through a transverse thin wall, wherein the center of the upper cavity is a convex structure (31), and the positioning block (41) of the spherical pair (4) is installed at the center of the elastic beam (3).

6. The spherical support tilting pad sliding thrust bearing and its elastic support structure according to claim 5, characterized in that: The elastic beam (3) and the spherical pair (4) form a complete tilting pad spherical support thrust bearing device for carrying the thrust of the rotating shaft (6), and the rotating shaft (6) is connected to the thrust plate (7).

7. The spherical support tilting pad sliding thrust bearing and its elastic support structure according to claim 6, characterized in that: When the thrust pads (5) are subjected to thrust from the thrust plate (7), the thrust pads (5) with excessive thickness are subjected to force first, and the thrust pads (5) compress the elastic beam (3) structure to cause elastic deformation, so that the heights of the thrust pads (5) are consistent, thereby achieving relative force balance.

8. The spherical support tilting pad sliding thrust bearing and the elastic support structure thereof according to claim 7, characterized in that: When the spherical pair (4) is installed in reverse with the elastic beam (3) and the thrust pad (5), a protruding structure (31) is provided at the center of the elastic beam (3), and the protruding structure (31) is used to position the sphere (42) of the spherical pair (4). The plane of the sphere (42) of the spherical pair (4) fits with the plane of the elastic beam (3), and the elastic beam (3) supports the sphere (42) of the spherical pair (4).

9. The spherical support tilting pad sliding thrust bearing and its elastic support structure according to claim 8, characterized in that: When the spherical pair (4) is reversely mounted to the elastic beam (3) and the thrust pad (5), the bottom plane of the sphere (42) of the spherical pair (4) is connected to the elastic beam (3), the arc surface of the sphere (42) of the spherical pair (4) is connected to the arc surface of the positioning block (41), and the positioning block (41) of the spherical pair (4) is mounted in a cylindrical groove at the bottom of the thrust pad (5), and the thrust pad (5) is supported by the positioning block (41).

10. The spherical support tilting pad sliding thrust bearing and the elastic support structure thereof according to claim 9, characterized in that: When the spherical pair (4) is installed in reverse with the elastic beam (3) and the thrust pad (5), the bottom of the thrust pad (5) is a cylindrical groove structure, and the positioning block (41) of the spherical pair (4) is embedded in the cylindrical groove at the bottom of the thrust pad (5), and the positioning block (41) above the ball (42) is supported by the ball (42) of the spherical pair (4), and the same swing characteristics are obtained by the reverse installation of the ball (42) of the spherical pair (4) and the positioning block (41).

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