A fluid-supported tilting pad thrust assembly and a thrust bearing having the same

Abstract

The present invention provides a fluid-supported tilting pad thrust assembly and a thrust bearing having the same. The thrust assembly is disposed in a housing of the thrust bearing. The thrust assembly includes a thrust disk, support pins, thrust pads, thrust pins, and thrust blocks. An outer peripheral surface of the thrust disk abuts against an inner surface of the housing and has a first groove recessed inward from the outer peripheral surface. The support pins and the thrust pads are disposed on the same side of the thrust disk. A plurality of support pins are circumferentially spaced apart along the thrust disk and have oil injection holes communicating with the first groove. The thrust pads are limited between two adjacent support pins and have first oil guide holes. The thrust pins are disposed on the thrust pads and have second oil guide holes. The thrust blocks are disposed on the thrust disk, and at least one of the thrust blocks and the thrust pins has a second groove communicating with the second oil guide hole. The thrust assembly is configured such that lubricating oil in the first groove is ejected outward through the oil injection holes and enters the second groove through the first oil guide holes and the second oil guide holes for supporting the thrust pads.

Description

Technical Field

[0001] The present invention relates to the technical field of ships, and particularly to a fluid-supported tilting pad thrust assembly and a thrust bearing having the same. Background Art

[0002] As a key device in a ship power system, the main function of a thrust bearing is to transmit the thrust or pull generated by a ship propeller to the hull, so that the ship can move forward or backward. A thrust block is a key component of the thrust bearing, which directly affects the working performance of the device. Among them, a tilting thrust block has the advantage of automatically adjusting with the change of load. Therefore, it has a wide application in a ship propulsion shafting.

[0003] The traditional tilting thrust block adopts a mechanical fulcrum support. The thrust block automatically adjusts around its fulcrum according to the liquid pressure distribution on its working surface. However, the adjustment range of the existing thrust block is restricted by the mechanical fulcrum, and the working surface of the thrust block bears liquid pressure, and there is almost no pressure distribution on the non-working surface of the back, resulting in mechanical deformation of the thrust block. In addition, the thrust assembly is composed of multiple thrust blocks. Affected by processing, assembly, structure, layout method, etc., it is difficult to achieve uniform thrust distribution among the thrust blocks.

[0004] Therefore, it is necessary to provide a thrust assembly and a thrust bearing having the same to at least partially solve the above problems. Summary of the Invention

[0005] A series of simplified concepts are introduced in the Summary of the Invention section, which will be further described in detail in the Detailed Description section. The Summary of the Invention section of the present invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0006] To at least partially solve the above problems, according to a first aspect of the present invention, a thrust assembly for a thrust bearing is disclosed. The thrust assembly is arranged in a housing of the thrust bearing. The thrust assembly includes:

[0007] A thrust collar, an outer peripheral surface of the thrust collar abuts against an inner surface of the housing, and the thrust collar has a first groove recessed inward from the outer peripheral surface;

[0008] Support pins, the support pins are arranged on the thrust collar and located on one side of the thrust collar. A plurality of the support pins are arranged at intervals along a circumference of the thrust collar, and the support pins have oil injection holes communicating with the first groove;

[0009] Thrust block, the thrust block and the support pin are located on the same side of the thrust bearing plate and are limited between two adjacent support pins, and the thrust block has a first oil guide hole;

[0010] Thrust bearing pin, the thrust bearing pin is arranged on the thrust block and is located on the side of the thrust block facing the thrust bearing plate, and the thrust bearing pin has a second oil guide hole; and

[0011] Thrust bearing block, the thrust bearing block is arranged on the thrust bearing plate and is located on the side of the thrust bearing plate facing the thrust block, the position of the thrust bearing block corresponds to that of the thrust bearing pin, and at least one of the thrust bearing block and the thrust bearing pin has a second groove communicating with the second oil guide hole;

[0012] Wherein, the thrust assembly is configured such that the lubricating oil in the first groove is ejected outward through the oil injection hole and enters the second groove through the first oil guide hole and the second oil guide hole for supporting the thrust block.

[0013] According to the thrust assembly of the present invention, by fluidly supporting the thrust block, the degree of freedom of the thrust block is increased, enabling it to have a larger self-adjustment range, reducing the mechanical deformation of the thrust block, facilitating the maintenance of the working surface of the thrust block, and facilitating the real-time monitoring of the thrust, and the thrust assembly is easy to assemble.

[0014] Optionally, the thrust bearing pin has the second groove, and the thrust bearing pin includes a main body portion and a protruding portion connected to the main body portion and extending circumferentially, and the second groove is formed between the main body portion and the protruding portion.

[0015] Optionally, the thrust bearing plate has a third oil guide hole extending radially, the support pin has a fifth oil guide hole communicating with the oil injection hole, and the third oil guide hole communicates the first groove with the fifth oil guide hole.

[0016] Optionally, the thrust block has a third groove for accommodating the thrust bearing pin and a fourth groove extending inward from the third groove, and the first oil guide hole communicates with the fourth groove.

[0017] Optionally, the fourth groove communicates with the second oil guide hole, so that the first oil guide hole communicates with the second oil guide hole.

[0018] Optionally, the thrust block has a fifth groove, and at least a part of the support pin is accommodated in the fifth groove.

[0019] Optionally, the thrust bearing plate has a sixth groove and a seventh oil guiding hole communicating with the sixth groove. The sixth groove is located on a side of the thrust bearing plate facing away from the thrust block. The thrust block has an eighth oil guiding hole that communicates the second groove with the sixth groove.

[0020] Optionally, the thrust block includes a body portion and a convex portion protruding outward from one side of the body portion. A pair of ninth grooves are provided on the outer peripheral edge of the body portion. The eighth oil guiding hole is provided between the pair of ninth grooves. A first sealing ring is provided in the ninth grooves to seal the eighth oil guiding hole.

[0021] Optionally, the thrust assembly further includes a thrust bearing pad. The convex portion has a contact surface for contacting the thrust bearing pad, and the contact surface is configured to be at least partially an arc surface.

[0022] Optionally, the thrust assembly further includes an adjusting ring. The thrust bearing plate has a seventh groove inside the sixth groove and an eighth groove outside the sixth groove. Sealing rings are respectively provided in the seventh groove and the eighth groove. The adjusting ring covers the outside of the thrust bearing plate and presses the sealing rings to seal the sixth groove.

[0023] According to a second aspect of the present invention, a thrust bearing is disclosed, which includes the thrust assembly according to any one of the above first aspects.

[0024] According to the thrust bearing of the present invention, by fluidly supporting the thrust block, the degree of freedom of the thrust block is increased, enabling it to have a larger self-adjustment range, reducing the mechanical deformation of the thrust block, facilitating the maintenance of the working surface of the thrust block, and facilitating the real-time monitoring of the thrust. The thrust assembly is easy to assemble.

[0025] Optionally, the thrust bearing includes a main shaft, which includes a shaft body portion and a thrust disc radially extending outward from the shaft body portion. The thrust assembly is sleeved on the shaft body portion and is located on the side of the thrust disc, and the thrust block faces the thrust disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The following drawings of the embodiments of the present invention are hereby incorporated as part of the present invention for understanding the present invention. The embodiments of the present invention shown in the drawings and their descriptions are used to explain the principles of the present invention. In the drawings,

[0027] Figure 1 is a schematic cross-sectional view of a thrust bearing according to a preferred embodiment of the present invention;

[0028] Figure 2 is Figure 1 a three-dimensional schematic view of the thrust assembly in

[0029] Figure 3 is the side view schematic diagram of the thrust assembly in Figure 2 ;

[0030] Figure 4 is the cross-sectional schematic diagram along line A-A in Figure 3 ;

[0031] Figure 5 is the three-dimensional schematic diagram of the thrust bearing plate in Figure 2 , where a partial area is shown in section;

[0032] Figure 6 is the three-dimensional schematic diagram of the thrust block in Figure 2 ;

[0033] Figure 7 is the three-dimensional schematic diagram of the support pin in Figure 2 , where a partial area is shown in section;

[0034] Figure 8 is the three-dimensional schematic diagram of the thrust bearing pin and the thrust bearing block in Figure 2 , where a partial area is shown in section;

[0035] Figure 9 is the three-dimensional schematic diagram of the thrust block and the thrust bearing pin in Figure 2 ;

[0036] Figure 10 is the three-dimensional schematic diagram of the positioning pin in Figure 2 , where a partial area is shown in section.

[0037] Description of reference numerals:

[0038] 100: Thrust bearing 110: Housing

[0039] 120: Main shaft 121: Shaft body part

[0040] 122: Thrust disk 130: Thrust assembly

[0041] 140: Thrust bearing plate 141: First groove

[0042] 142: Third oil guide hole 143: Sixth groove

[0043] 144: Seventh oil guide hole 145: Seventh groove

[0044] 146: Eighth groove 150: Support pin

[0045] 151: Oil injection hole 152: Fifth oil guide hole

[0046] 160: Thrust block 161: First oil guide hole

[0047] 162: Third groove 163: Fourth groove

[0048] 164: Fifth groove 170: Thrust pin

[0049] 171: Second oil guiding hole 172: Second groove

[0050] 173: Main body part 174: Protruding part

[0051] 180: Thrust block 181: Eighth oil guiding hole

[0052] 182: Raised part 183: Contact surface

[0053] 184: Body part 185: Ninth groove

[0054] 186: First sealing ring 191: Adjusting ring

[0055] 192: Thrust pad 193: Second sealing ring

[0056] 194: Positioning pin 195: Ninth oil guiding hole

[0057] 196: Cylindrical pin 147: Mounting hole Detailed implementation mode

[0058] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the embodiments of the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the embodiments of the present invention, some technical features well known in the art are not described.

[0059] In order to thoroughly understand the embodiments of the present invention, detailed structures will be proposed in the following description. Obviously, the implementation of the embodiments of the present invention is not limited to the special details familiar to those skilled in the art. ]

[0060] As Figure 1 shown, the present invention provides a thrust assembly 130 and a thrust bearing 100 having the same. The thrust assembly 130 is disposed in a housing 110 of the thrust bearing 100. The thrust bearing 100 includes a main shaft 120. The main shaft 120 extends through the housing 110. The main shaft 120 includes a shaft body part 121 and a thrust disk 122 radially extending outward from the shaft body part 121. Specifically, the shaft body part 121 extends through the housing 110, and the thrust disk 122 is located in the housing 110. Preferably, the thrust disk 122 is located at a substantially middle position of the shaft body part 121 in the axial direction. The thrust disk 122 can be configured as an annular disk coaxial with the shaft body part 121. The thrust assembly 130 is sleeved on the shaft body part 121 and is located on the side of the thrust disk 122.

[0061] The thrust assembly 130 mainly includes a thrust bearing plate 140, support pins 150, thrust blocks 160, thrust support pins 170, and thrust support blocks 180. The following will describe in detail the thrust assembly 130 according to the invention in conjunction with Figures 1 to 10 this.

[0062] As Figures 1 to 4 shown, the thrust bearing plate 140 is generally configured as a semi-circular structure. Two thrust bearing plates 140 are arranged opposite to each other to form a circular structure. For example, the two thrust bearing plates 140 can be connected together via a cylindrical pin 196. The outer peripheral surface of the thrust bearing plate 140 abuts against the inner surface of the housing 110, and the thrust bearing plate 140 has a first groove 141 that is recessed inward from the outer peripheral surface. The first groove 141 is an annular groove that surrounds the outer peripheral surface of the thrust bearing plate 140, and the cross-section of the first groove 141 can be U-shaped. The inner surface of the housing 110 can close the opening of the first groove 141 to form a chamber for accommodating lubricating oil between the inner surface of the housing 110 and the first groove 141 of the thrust bearing plate 140. A hydraulic oil pump can be provided on the outside of the housing 110 to supply lubricating oil to this chamber, that is, to the first groove 141.

[0063] The support pins 150 are arranged on the thrust bearing plate 140 and are located on one side of the thrust bearing plate 140. A plurality of support pins 150 are arranged at intervals along the circumferential direction of the thrust bearing plate 140. Specifically, the thrust bearing plate 140 has mounting holes 147. The mounting holes 147 can be configured as circular blind holes. One end of the support pin 150 is arranged in the mounting hole 147. The position of the mounting hole 147 can be set such that when the support pin 150 is installed on the thrust bearing plate 140, there is no interference between the support pin 150 and the cylindrical pin 196. In this embodiment, twelve support pins 150 are exemplarily shown. The twelve support pins 150 are located on a circle with the center line of the thrust bearing plate 140 as the center, and adjacent two support pins 150 are arranged at an interval of 30°. As Figure 7 shown, the support pin 150 can be generally configured as a columnar stepped structure. The support pin 150 can have an oil injection hole 151 that communicates with the first groove 141. The support pin 150 can have a plurality of oil injection holes 151. The oil injection holes 151 can be circular through holes.

[0064] Continuing to refer to Figures 1 to 4 , the thrust blocks 160 and the support pins 150 are located on the same side of the thrust bearing plate 140 and are limited between adjacent two support pins 150. Specifically, when the thrust assembly 130 is installed on the main shaft 120, the thrust blocks 16 are facing the thrust plate 122 of the main shaft 120. Specifically, in this embodiment, twelve thrust blocks 160 are exemplarily shown. The twelve thrust blocks 160 are located on a circle with the center line of the thrust bearing plate 140 as the center, and adjacent two thrust blocks 160 are arranged at an interval of 30°.

[0065] As shown Figure 6 in FIG. Figure 6 , the thrust block 160 has a first oil guiding hole 161. The first oil guiding hole 161 is configured as a through hole extending from a high-pressure bearing area of the working surface of the thrust block 160 to the other surface opposite thereto. It should be noted that in this text, the "working surface of the thrust block 160" refers to the surface of the thrust block 160 facing away from the thrust disk 140, in other words, the surface of the thrust block 160 facing the thrust disk 122 of the main shaft 120. The thrust block 160 has a fifth groove 164, and the support pin 150 is at least partially received in the fifth groove 164. The thrust block 160 may have two fifth grooves 164. The fifth grooves 164 may be oppositely arranged on both sides of the thrust block 160, and these two sides are adjacent to the working surface of the thrust block 160. Two adjacent support pins 150 are received in the two fifth grooves 164, and in this way, the thrust block 160 is mounted on the thrust disk 140.

[0066] As shown Figure 4 and Figure 9 in FIGS. Figure 4 and Figure 9 , a thrust bearing pin 170 is provided on the thrust block 160 and is located on the side of the thrust block 160 facing the thrust disk 140. The thrust bearing pin 170 has a second oil guiding hole 171. The second oil guiding hole 171 communicates with the first oil guiding hole 161 of the thrust block 160.

[0067] As shown Figure 4 in FIG. Figure 4 , a thrust block 180 is provided on the thrust disk 140 and is located on the side of the thrust disk 140 facing the thrust block 160. The positions of the thrust block 180 and the thrust bearing pin 170 correspond to each other. At least one of the thrust block 180 and the thrust bearing pin 170 has a second groove communicating with the second oil guiding hole 171. As shown Figure 8 in FIG. Figure 8 , in this embodiment, the thrust bearing pin 170 has a second groove 172. The thrust bearing pin 17 includes a main body portion 173 and a protruding portion 174 connected to the main body portion 173 and extending circumferentially. A second groove 172 is formed between the main body portion 173 and the protruding portion 174. The main body portion 173 may be configured as a disk-shaped structure. The protruding portion 174 may be configured as an annular columnar structure.

[0068] In this embodiment, the thrust assembly 130 is configured such that the lubricating oil in the first groove 141 is ejected outward through the oil injection hole 151, and enters the second groove 172 through the first oil guiding hole 161 and the second oil guiding hole 171 for supporting the thrust bearing pin 170 and the thrust block 160. According to the thrust assembly 130 of the present invention, by fluidly supporting the thrust block 160, the degree of freedom of the thrust block 160 is increased, enabling it to have a larger self-adjustment range, reducing the mechanical deformation of the thrust block 160, facilitating the maintenance of the working surface of the thrust block 160, and facilitating the real-time monitoring of the thrust. The thrust assembly 130 is convenient for assembly.

[0069] As shown Figure 2 andFigure 4 and Figure 5 As shown in Figure 5 , the thrust plate 140 has a third oil guiding hole 142 extending radially, the support pin 150 has a fifth oil guiding hole 152 communicating with the oil injection hole 151, and the third oil guiding hole 142 communicates the first groove 141 with the fifth oil guiding hole 152. Specifically, the mounting hole 147 can communicate the third oil guiding hole 142 with the fifth oil guiding hole 152. Thus, the lubricating oil in the first groove 141 can enter the support pin 150 via the third oil guiding hole 142 and be sprayed onto the working surface of the thrust block 160 via the oil injection hole 151 of the support pin  150, so that the working surface of the thrust block 160 and the surface of the thrust disk 122 are filled with lubricating oil. When the main shaft 120 rotates, a hydrodynamic oil film will be formed on the working surface of the thrust block 160. In this embodiment, the number of the third oil guiding holes 142 corresponds to the number of the thrust blocks 160.

[0070] As Figure 6 and Figure 9 shown in Figure 9 , the thrust block 160 has a third groove 162 for accommodating the support pin 170 and a fourth groove 163 extending inward from the third groove 162, and the first oil guiding hole 161 communicates with the fourth groove 163. The fourth groove 163 communicates with the second oil guiding hole 171, so that the first oil guiding hole 161 communicates with the second oil guiding hole 171. The support pin 170 is arranged in the third groove 162 to be mounted on the thrust block 160. In this embodiment, the first oil guiding hole 161 is located at the center of the fourth groove 163 and is offset from the center of the third groove 162. The fourth groove 163 is used for caching lubricating oil. Preferably, the first oil guiding hole 161 is located in the high-pressure bearing area on the working surface of the thrust block 160. The lubricating oil on the working surface of the thrust block 160 can sequentially enter the second oil guiding hole 171 and the second groove 172 of the support pin 170 via the first oil guiding hole 161, the fourth groove 163 and the third groove 162 of the thrust block 160, so as to store a certain amount of lubricating oil in the second groove 172 to form a static pressure oil film.

[0071] As Figure 4 and Figure 5As shown, the thrust plate 140 has a sixth groove 143 and a seventh oil guide hole 144 connected to the sixth groove 143. The sixth groove 143 is located on the side of the thrust plate 140 facing away from the thrust block 160. The sixth groove 143 is an annular groove circumferentially extending around the central axis of the thrust plate 140. The thrust block 180 has an eighth oil guide hole 181, which connects the second groove 172 with the sixth groove 143. This allows lubricating oil in the second groove 172 to flow into the sixth groove 143 sequentially through the eighth oil guide hole 181 and the seventh oil guide hole 144. Because the sixth groove 143 is connected to each of the second grooves 172, the oil pressure of the lubricating oil in each second groove 172 can be adjusted in a coordinated manner, ensuring that each thrust block 160 experiences substantially equal thrust.

[0072] The thrust assembly 130 also includes an adjustment ring 191. The adjustment ring 191 is constructed as two semi-annular disc-shaped structures that together form a circular ring-shaped disc-shaped structure. The thrust plate 140 has a seventh groove located inside the sixth groove 143 and an eighth groove 146 located outside the sixth groove 143. The seventh groove 145 and the eighth groove 146 can each be constructed as annular grooves surrounding the central axis of the thrust plate 140. A second sealing ring 193 is disposed in each of the seventh groove 145 and the eighth groove 146. The adjustment ring 191 covers the outer side of the thrust plate 140 and presses against the second sealing ring 193 to seal the sixth groove 143. The second sealing ring 193 can be an O-ring. The thickness of the adjustment ring 191 is adjusted through a finishing process to adjust the axial dimension (e.g., axial thickness) of the thrust assembly 130.

[0073] like Figure 4 As shown, thrust assembly 130 further includes a thrust pad 192. Thrust pad 192 can be configured as a circular disc-shaped structure. Protrusion 182 has a contact surface 183 for contacting thrust pad 192. Contact surface 183 is configured as at least partially an arcuate surface. Preferably, contact surface 183 is configured as a spherical surface.

[0074] The working principle of the thrust assembly 130 of the present invention will be described in detail below. When the thrust assembly 130 operates, a hydrodynamic oil film is formed on the working surface of the thrust block 160. A small amount of high-pressure oil enters the second groove 172 of the thrust pin 170 through the first oil guide hole 161 to fill the lubricating oil in the second groove 172 to form a hydrostatic oil film. At this time, the working surface of the thrust block 160 is a hydrodynamic oil film formed by hydrodynamic lubrication, and the back surface is a hydrostatic oil film formed by introducing a part of the lubricating oil in the high-pressure area of the hydrodynamic oil film into the second groove 172. Since the load-bearing capacity of the hydrostatic oil film on the back surface of the thrust block 160 is greater than that of the hydrodynamic oil film on the working surface and the acting directions are opposite, the thrust block 160 and the thrust pin 170 will float under the support of the hydrostatic oil film. A small amount of leakage will occur in the high-pressure lubricating oil in the second groove 172, resulting in a decrease in the oil film pressure in the second groove 172, so that the oil pressures on both sides of the thrust block 160 reach equilibrium. According to the pressure distribution of the hydrodynamic oil film on the working surface of the thrust block 160, the thrust block 180 and the thrust pad 192 will form a certain inclination angle to adjust the inclination angle of the working surface of the thrust block 160. In addition, the high-pressure lubricating oil in the second groove 172 enters the sixth groove 143 through the eighth oil guide hole 181 on the thrust block 180 and the seventh oil guide hole of the thrust disc 140, so that the second grooves 172 communicate with each other. The linkage adjustment of the oil film pressures in the second grooves 172 is realized to form pressure compensation, so that the thrusts borne by the thrust blocks 160 are basically equal.

[0075] Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the technical field of the present invention. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Terms such as "arranged" that appear herein can mean that one component is directly attached to another component or that one component is attached to another component through an intermediate member. The features described in one embodiment herein can be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise stated in that other embodiment.

[0076] The present invention has been described through the above embodiments. However, it should be understood that the above embodiments are only for the purpose of illustration and example, and are not intended to limit the present invention within the scope of the described embodiments. Those skilled in the art can understand that more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope claimed by the present invention.

Claims

1. A fluid-supported tilting pad thrust assembly for a thrust bearing, the thrust assembly being disposed in a housing of the thrust bearing, characterized in that, The thrust assembly includes: A thrust bearing plate, the outer peripheral surface of the thrust bearing plate abuts against the inner surface of the housing, and the thrust bearing plate has a first groove recessed inward from the outer peripheral surface; Support pins, the support pins are arranged on the thrust bearing plate and located on one side of the thrust bearing plate, and a plurality of the support pins are arranged at intervals along the circumferential direction of the thrust bearing plate, and the support pins have oil injection holes communicating with the first groove; Thrust blocks, the thrust blocks and the support pins are located on the same side of the thrust bearing plate and are limited between two adjacent support pins, and the thrust blocks have first oil guiding holes; Thrust bearing pins, the thrust bearing pins are arranged on the thrust blocks and are located on the side of the thrust blocks facing the thrust bearing plate, and the thrust bearing pins have second oil guiding holes; and Thrust bearing blocks, the thrust bearing blocks are arranged on the thrust bearing plate and are located on the side of the thrust bearing plate facing the thrust blocks, the positions of the thrust bearing blocks and the thrust bearing pins correspond to each other, and at least one of the thrust bearing blocks and the thrust bearing pins has a second groove communicating with the second oil guiding hole; Wherein, the thrust assembly is configured such that the lubricating oil in the first groove is ejected outward through the oil injection holes and enters the second groove through the first oil guiding hole and the second oil guiding hole for supporting the thrust blocks.

2. The thrust assembly according to claim 1, characterized in that The thrust bearing pin has the second groove, and the thrust bearing pin includes a main body portion and a protruding portion connected to the main body portion and extending circumferentially, and the second groove is formed between the main body portion and the protruding portion.

3. The thrust assembly according to claim 1, wherein, The thrust bearing plate has a third oil guiding hole extending radially, and the support pin has a fifth oil guiding hole communicating with the oil injection hole, and the third oil guiding hole communicates the first groove with the fifth oil guiding hole.

4. The thrust assembly according to claim 1, wherein The thrust block has a third groove for accommodating the thrust bearing pin and a fourth groove extending inward from the third groove, and the first oil guiding hole communicates with the fourth groove.

5. The thrust assembly according to claim 4, characterized in that, The fourth groove communicates with the second oil guiding hole, so that the first oil guiding hole communicates with the second oil guiding hole.

6. The thrust assembly according to claim 1, characterized in that, The thrust block has a fifth groove, and at least part of the support pin is accommodated in the fifth groove.

7. The thrust assembly according to claim 1, characterized in that, The thrust bearing plate has a sixth groove and a seventh oil guiding hole communicating with the sixth groove, the sixth groove is located on the side of the thrust bearing plate facing away from the thrust block, the thrust bearing block has an eighth oil guiding hole, and the eighth oil guiding hole communicates the second groove with the sixth groove.

8. The thrust assembly according to claim 7, wherein The thrust bearing block includes a main body portion and a protruding portion protruding outward from one side of the main body portion, a pair of ninth grooves are provided at the outer peripheral edge of the main body portion, the eighth oil guiding hole is provided between the pair of ninth grooves, and a first sealing ring is provided in the ninth grooves to seal the eighth oil guiding hole.

9. The thrust assembly according to claim 8, wherein The thrust assembly further includes a thrust bearing pad, the protruding portion has a contact surface for contacting the thrust bearing pad, and the contact surface is configured to be at least partially an arc surface.

10. The thrust assembly according to claim 7, wherein, The thrust assembly further includes an adjusting ring. The thrust bearing plate has a seventh groove inside the sixth groove and an eighth groove outside the sixth groove. Second sealing rings are respectively arranged in the seventh groove and the eighth groove. The adjusting ring covers the outside of the thrust bearing plate and presses the second sealing rings to seal the sixth groove.

11. A thrust bearing, characterized in that, Comprising the thrust assembly according to any one of claims 1 to 10.

12. The thrust bearing according to claim 11, wherein, The thrust bearing includes a main shaft, the main shaft includes a shaft body portion and a thrust plate radially extending outward from the shaft body portion. The thrust assembly is sleeved on the shaft body portion and is located on the side of the thrust plate, and the thrust block faces the thrust plate.

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