A thrust sliding bearing device

By designing structures such as bearing bushes, gaskets, thrust rings, and limiting grooves, and utilizing the sliding limiting strip of the drive assembly to achieve tool-free installation, the problem of installation space limitations for thrust sliding bearing devices in compact equipment is solved, improving the flexibility of structural design and functional integration.

CN224453390UActive Publication Date: 2026-07-03SHANGHAI RUNCHENG ELECTROMECHANICAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI RUNCHENG ELECTROMECHANICAL TECH CO LTD
Filing Date
2025-10-10
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing thrust sliding bearing devices require space for bolts and wrenches when installed in compact equipment, which reduces the flexibility of structural design and limits functional integration.

Method used

The structure is designed with bearing bushes, sealing gaskets, thrust rings, limit grooves, and drive components. Tool-free installation is achieved by driving the limit strip to slide through the drive components, which simplifies the position fixation of the fixing block.

Benefits of technology

This technology enables easy installation of the thrust sliding bearing device without the need for tools, thereby improving the flexibility of the equipment's structural design and its functional integration.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the field of sliding bearing technology, and particularly relates to a thrust sliding bearing device, including a bearing shell, two sealing gaskets, two lubrication plates, and two thrust rings. It also includes: a base, which is located below the bearing shell; a first fixing block is fixedly installed on the top of the base; a second fixing block is located on the top of the first fixing block; the bearing shell is located between the first and second fixing blocks; two thrust rings are fixedly installed at both ends of the bearing shell; two sealing gaskets are fixedly installed on the bearing shell; and two lubrication plates are fixedly installed on the two thrust rings. A limiting groove is formed within the second fixing block, and two fixing posts are inserted into the limiting groove. Both fixing posts are fixedly connected to the first fixing block. Limiting strips are slidably installed within the limiting groove on one side of each of the two fixing posts, and the two limiting strips extend into the two fixing posts. The device is easy to install and simple to operate without the need for tools.
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Description

Technical Field

[0001] This utility model belongs to the field of sliding bearing technology, and in particular relates to a thrust-resistant sliding bearing device. Background Technology

[0002] Thrust bearings are sliding bearings specifically designed to bear axial loads, consisting of a thrust journal and a bearing housing. During operation, rotation carries lubricating oil into the wedge-shaped gap to form an oil film, achieving fluid friction to reduce wear and limiting axial movement of the shaft. They are suitable for low-speed, heavy-load equipment such as water turbines and internal combustion engines.

[0003] Most thrust bearings have several drawbacks in use, such as the need to reserve space for bolts and wrenches when fixed at the work site, which constrains the structural design of compact equipment. This means additional axial or radial dimensions are required, reducing the layout space of surrounding components. In scenarios that pursue miniaturization and integration of equipment, this constraint significantly reduces the flexibility of structural design and even limits functional integration. In view of this, we propose a thrust bearing device. Utility Model Content

[0004] The purpose of this invention is to provide a thrust sliding bearing device to solve the problems mentioned in the background art.

[0005] In view of this, the present invention provides a thrust sliding bearing device, including a bearing bush, two sealing gaskets, two lubrication plates, and two thrust rings, and further comprising:

[0006] The base is located below the bearing shell. A first fixing block is fixedly installed on the top of the base, and a second fixing block is installed on the top of the first fixing block. The bearing shell is located between the first fixing block and the second fixing block. Two thrust rings are fixedly installed at both ends of the bearing shell. Two sealing gaskets are fixedly installed on the bearing shell. Two lubrication plates are fixedly installed on the two thrust rings.

[0007] A limiting groove is formed inside the second fixing block. Two fixing posts are inserted into the limiting groove. Both fixing posts are fixedly connected to the first fixing block. Limiting strips are slidably installed in the limiting groove on one side of the two fixing posts. The two limiting strips extend into the two fixing posts respectively and are inserted into the two fixing posts respectively.

[0008] A driving component, located within the second fixed block, is used to drive the two limit bars to slide.

[0009] In this technical solution, when the overall device needs to be installed, the bearing bush is first placed on top of the first fixing block. Through the set drive component, the two limit strips can be driven to slide and move closer to each other. When both limit strips slide to their limit positions, the second fixing block is placed on top of the first fixing block, and at the same time, both fixing posts are inserted into the limit grooves. Through the set drive component, the two limit strips can be driven to slide and move away from each other. The two limit strips are respectively inserted into the two fixing posts, which can fix the positions of the first fixing block and the second fixing block, making it convenient to install the overall device. The operation is simple and does not require the use of tools.

[0010] In the above technical solution, the driving component further includes...

[0011] Two first fixing rods are fixedly installed inside. The same sliding strip is slidably installed on the two first fixing rods. A first spring is sleeved on each of the two first fixing rods. Two guide grooves are opened at the bottom of the sliding strip. A guide rod is slidably installed in each of the two guide grooves. The two guide rods are respectively located at the top of the two limiting strips, and the two guide rods are respectively fixedly connected to the two limiting strips.

[0012] In this technical solution, the bearing bush is first placed on top of the first fixed block. Then, the sliding bar is pulled to slide, compressing the two first springs. The sliding bar drives the two guide rods to slide through the two guide grooves. The two guide rods drive the two limiting bars to slide and move closer to each other. When both limiting bars have slid to their limit positions, the second fixed block is placed on top of the first fixed block, and both fixing posts are inserted into the limiting grooves. Then, by reversing the operation, the two limiting bars can be driven to slide and move away from each other. The two limiting bars are inserted into the two fixing posts, which can fix the positions of the first and second fixed blocks, making it convenient to install the whole device. The operation is simple and requires no tools.

[0013] In the above technical solution, the driving component further includes:

[0014] A rectangular block is fixedly installed on the top of a sliding bar. A sliding groove is provided inside the rectangular block. Two second fixing rods are fixedly installed inside the sliding groove. The same limiting block is slidably installed on the two second fixing rods. A second spring is sleeved on each of the two second fixing rods. Two grooves are provided inside the second fixing block and on one side of the rectangular block. One side of the limiting block passes through the sliding groove and is inserted into the groove.

[0015] In this technical solution, pulling the limiting block slides the limiting block, which compresses the two second springs to retract. When the limiting block disengages from one of the grooves, pulling the rectangular block slides the rectangular block, which in turn drives the sliding strip to slide. Releasing the limiting block causes it to slide and insert into the other groove under the rebound force of the two second springs, thus fixing the position of the rectangular block.

[0016] In the above technical solution, the rectangular block and the sliding bar are slidably connected to the limiting groove.

[0017] In this technical solution, it is ensured that both the rectangular block and the sliding bar can slide within the limiting groove.

[0018] In the above technical solution, two limiting rods are further fixedly installed on the bearing bush and between the two sealing gaskets, and the two limiting rods are respectively inserted into and cooperate with the first fixing block and the second fixing block.

[0019] In this technical solution, it is ensured that the bearing bush can be quickly positioned between the first fixing block and the second fixing block.

[0020] In the above technical solution, the base, the first fixing block, and the two fixing columns are integrally formed.

[0021] In this technical solution, it is ensured that the base, the first fixing block, and the two fixing columns can all be used stably.

[0022] In the above technical solution, furthermore, the two sealing gaskets are in contact with the first fixing block and the second fixing block, respectively.

[0023] In this technical solution, the overall sealing of the device is ensured to prevent dust from entering the first and second fixing blocks.

[0024] In the above technical solution, further, the two ends of the second spring are welded to the limiting block and the inner wall of the sliding groove, respectively, and the two ends of the first spring are welded to the sliding bar and the inner wall of the limiting groove, respectively.

[0025] In this technical solution, it is ensured that both second springs and both first springs can be used stably.

[0026] The beneficial effects of this utility model are:

[0027] When installing this thrust sliding bearing device, the bearing bush is first placed on top of the first fixed block. The drive assembly then moves the two limit strips closer together. When both limit strips reach their limit positions, the second fixed block is placed on top of the first fixed block, and both fixed posts are inserted into the limit grooves. The drive assembly then moves the two limit strips further apart. The two limit strips are then inserted into the two fixed posts, which fixes the positions of the first and second fixed blocks, facilitating the installation of the entire device. The operation is simple and requires no tools. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is one of the schematic diagrams of a partial explosion structure of this utility model;

[0030] Figure 3 This is a schematic diagram of the bearing area structure of this utility model;

[0031] Figure 4 This is one of the schematic diagrams of the cross-sectional structure of the second fixing block of this utility model;

[0032] Figure 5 This is a schematic diagram of the rectangular block cross-sectional structure of this utility model;

[0033] Figure 6 This is the second schematic diagram of the cross-sectional structure of the second fixing block of this utility model;

[0034] Figure 7 This is the third schematic diagram of the cross-sectional structure of the second fixing block of this utility model;

[0035] Figure 8 This is the second schematic diagram of the partial explosion structure of this utility model;

[0036] Figure 9 This is a schematic diagram of the limiting strip area structure of this utility model.

[0037] The markings in the diagram are as follows:

[0038] 1. Base; 2. First fixing block; 3. Second fixing block; 4. Limiting groove; 5. Fixing column; 6. Bearing; 7. Sealing gasket; 8. Lubricating plate; 9. Limiting rod; 10. First fixing rod; 11. Sliding strip; 12. First spring; 13. Guide groove; 14. Guide rod; 15. Limiting strip; 16. Rectangular block; 17. Sliding groove; 18. Second fixing rod; 19. Limiting block; 20. Second spring; 21. Groove; 22. Thrust ring. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1 - Figure 9 This application will be described in further detail.

[0040] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0041] Example 1: This example provides a thrust sliding bearing device, including a bearing shell 6, two sealing gaskets 7, two lubrication plates 8, and two thrust rings 22, and also includes:

[0042] The base 1 is located below the bearing shell 6. A first fixing block 2 is fixedly installed on the top of the base 1. A second fixing block 3 is installed on the top of the first fixing block 2. The bearing shell 6 is located between the first fixing block 2 and the second fixing block 3. Two thrust rings 22 are fixedly installed at both ends of the bearing shell 6. Two sealing gaskets 7 are fixedly installed on the bearing shell 6. Two lubrication plates 8 are fixedly installed on the two thrust rings 22.

[0043] The limiting groove 4 is opened in the second fixing block 3. Two fixing posts 5 are inserted and installed in the limiting groove 4. Both fixing posts 5 are fixedly connected to the first fixing block 2. Limiting strips 15 are slidably installed in the limiting groove 4 and on one side of the two fixing posts 5. The two limiting strips 15 extend into the two fixing posts 5 respectively, and the two limiting strips 15 are inserted and engaged with the two fixing posts 5 respectively.

[0044] The driving component is located inside the second fixed block 3 and is used to drive the two limit bars 15 to slide.

[0045] When installing the entire device, the bearing 6 is first placed on top of the first fixing block 2. The driving component drives the two limiting strips 15 to slide and move closer to each other. When both limiting strips 15 have slid to their limit positions, the second fixing block 3 is placed on top of the first fixing block 2. At the same time, both fixing posts 5 are inserted into the limiting grooves 4. The driving component drives the two limiting strips 15 to slide and move away from each other. The two limiting strips 15 are inserted into the two fixing posts 5 respectively, which can fix the positions of the first fixing block 2 and the second fixing block 3, making it convenient to install the entire device. The operation is simple and does not require the use of tools.

[0046] In this embodiment, the driving component includes

[0047] Two first fixing rods 10 are fixedly installed inside. The same sliding strip 11 is slidably installed on the two first fixing rods 10. A first spring 12 is sleeved on each of the two first fixing rods 10. Two guide grooves 13 are opened at the bottom of the sliding strip 11. A guide rod 14 is slidably installed in each of the two guide grooves 13. The two guide rods 14 are respectively located at the top of the two limit strips 15, and the two guide rods 14 are respectively fixedly connected to the two limit strips 15.

[0048] First, the bearing 6 is placed on top of the first fixing block 2. Then, the sliding bar 11 is pulled to slide, and the sliding bar 11 compresses the two first springs 12 to retract. The sliding bar 11 drives the two guide rods 14 to slide through the two guide grooves 13. The two guide rods 14 drive the two limiting bars 15 to slide and move closer to each other. When the two limiting bars 15 have slid to their limit positions, the second fixing block 3 is placed on top of the first fixing block 2. At the same time, the two fixing posts 5 are inserted into the limiting grooves 4. Then, by reversing the operation, the two limiting bars 15 can be driven to slide and move away from each other. The two limiting bars 15 are inserted into the two fixing posts 5, which can fix the positions of the first fixing block 2 and the second fixing block 3, making it convenient to install the whole device. The operation is simple and does not require the use of tools.

[0049] In this embodiment, the driving component further includes:

[0050] A rectangular block 16 is fixedly installed on the top of the sliding bar 11. A sliding groove 17 is provided inside the rectangular block 16. Two second fixing rods 18 are fixedly installed inside the sliding groove 17. The same limiting block 19 is slidably installed on the two second fixing rods 18. A second spring 20 is sleeved on each of the two second fixing rods 18. Two grooves 21 are provided inside the second fixing block 3 and on one side of the rectangular block 16. One side of the limiting block 19 passes through the sliding groove 17, and the limiting block 19 and the groove 21 are inserted into each other.

[0051] When the limiting block 19 is pulled to slide, the limiting block 19 compresses the two second springs 20 to contract. After the limiting block 19 disengages from one of the grooves 21, the rectangular block 16 is pulled to slide, and the rectangular block 16 drives the sliding strip 11 to slide. When the limiting block 19 is released, under the action of the rebound force of the two second springs 20, the limiting block 19 slides and inserts into the other groove 21, which can fix the position of the rectangular block 16.

[0052] Example 2: This example provides a thrust sliding bearing device, which, in addition to the technical solutions of the above examples, also has the following technical features.

[0053] In this embodiment, both the rectangular block 16 and the sliding bar 11 are slidably connected to the limiting groove 4.

[0054] This ensures that both the rectangular block 16 and the sliding bar 11 can slide within the limiting groove 4.

[0055] Example 3: This example provides a thrust sliding bearing device, which, in addition to the technical solutions of the above examples, also has the following technical features.

[0056] In this embodiment, two limiting rods 9 are fixedly installed on the bearing bush 6 and between the two sealing gaskets 7. The two limiting rods 9 are respectively inserted into the first fixing block 2 and the second fixing block 3.

[0057] This ensures that the bearing 6 can be quickly positioned between the first fixing block 2 and the second fixing block 3.

[0058] Example 4: This example provides a thrust sliding bearing device, which, in addition to the technical solutions of the above examples, also has the following technical features.

[0059] In this embodiment, the base 1, the first fixing block 2, and the two fixing columns 5 are integrally formed.

[0060] This ensures that the base 1, the first fixing block 2, and the two fixing columns 5 can all be used stably.

[0061] Example 5: This example provides a thrust sliding bearing device, which, in addition to the technical solutions of the above examples, also has the following technical features.

[0062] In this embodiment, the two sealing gaskets 7 are in contact with the first fixing block 2 and the second fixing block 3, respectively.

[0063] In particular, ensuring the overall sealing of the device is crucial to prevent dust from entering the first fixing block 2 and the second fixing block 3.

[0064] Example 6: This example provides a thrust sliding bearing device, which, in addition to the technical solutions of the above examples, also has the following technical features.

[0065] In this embodiment, the two ends of the second spring 20 are welded to the inner walls of the limiting block 19 and the sliding groove 17, respectively, and the two ends of the first spring 12 are welded to the inner walls of the sliding bar 11 and the limiting groove 4, respectively.

[0066] This ensures that both second springs 20 and both first springs 12 can be used stably.

[0067] Working principle: When the entire device needs to be installed, first place the bearing 6 on top of the first fixed block 2, and at the same time insert one of the limiting rods 9 into the first fixed block 2. Then pull the limiting block 19 to slide, and the limiting block 19 will compress the two second springs 20 to retract. After the limiting block 19 disengages from one of the grooves 21, pull the rectangular block 16 to slide, and the rectangular block 16 will drive the sliding strip 11 to slide. The sliding strip 11 will compress the two first springs 12 to retract, and the sliding strip 11 will drive the two guide rods 14 to slide through the two guide grooves 13 respectively. The two guide rods 14 will drive the two limiting strips 15 to slide and move closer to each other. When both limiting strips 15 have slid to the desired position... At the extreme position, the limiting block 19 is released. Under the rebound force of the two second springs 20, the limiting block 19 slides and inserts into another groove 21, which can fix the position of the rectangular block 16. Then, the second fixing block 3 is placed on top of the first fixing block 2, and another limiting rod 9 is inserted into the second fixing block 3. At the same time, both fixing posts 5 are inserted into the limiting grooves 4. Then, by reversing the operation, the two limiting strips 15 can be driven to slide and move away from each other. The two limiting strips 15 are respectively inserted into the two fixing posts 5, which can fix the positions of the first fixing block 2 and the second fixing block 3, making it convenient to install the whole device. The operation is simple and does not require the use of tools.

[0068] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A thrust sliding bearing device, comprising a bearing shell (6), two sealing gaskets (7), two lubrication plates (8), and two thrust rings (22), characterized in that, Also includes: The base (1) is located below the bearing shell (6). A first fixing block (2) is fixedly installed on the top of the base (1). A second fixing block (3) is installed on the top of the first fixing block (2). The bearing shell (6) is located between the first fixing block (2) and the second fixing block (3). Two thrust rings (22) are fixedly installed at both ends of the bearing shell (6). Two sealing gaskets (7) are fixedly installed on the bearing shell (6). Two lubrication plates (8) are fixedly installed on the two thrust rings (22). The limiting groove (4) is opened in the second fixing block (3). Two fixing posts (5) are inserted and installed in the limiting groove (4). Both fixing posts (5) are fixedly connected to the first fixing block (2). Limiting strips (15) are slidably installed in the limiting groove (4) and on one side of the two fixing posts (5). The two limiting strips (15) extend into the two fixing posts (5) respectively, and the two limiting strips (15) are inserted and cooperated with the two fixing posts (5) respectively. A drive assembly located within the second fixed block (3) and used to drive the two limit bars (15) to slide.

2. The thrust-resistant sliding bearing device according to claim 1, characterized in that, The driving component includes Two first fixing rods (10) are fixedly installed inside. The same sliding strip (11) is slidably installed on the two first fixing rods (10). A first spring (12) is sleeved on the two first fixing rods (10). Two guide grooves (13) are opened at the bottom of the sliding strip (11). Guide rods (14) are slidably installed in the two guide grooves (13). The two guide rods (14) are respectively located at the top of the two limit strips (15), and the two guide rods (14) are respectively fixedly connected to the two limit strips (15).

3. The thrust-resistant sliding bearing device according to claim 2, characterized in that, The driving component also includes: A rectangular block (16) is fixedly installed on the top of a sliding bar (11). A sliding groove (17) is provided in the rectangular block (16). Two second fixing rods (18) are fixedly installed in the sliding groove (17). The same limiting block (19) is slidably installed on the two second fixing rods (18). A second spring (20) is sleeved on each of the two second fixing rods (18). Two grooves (21) are provided in the second fixing block (3) and on one side of the rectangular block (16). One side of the limiting block (19) passes through the sliding groove (17), and the limiting block (19) and the groove (21) are inserted into each other.

4. A thrust-resistant sliding bearing device according to claim 3, characterized in that, The rectangular block (16) and the sliding bar (11) are both slidably connected to the limiting groove (4).

5. A thrust-resistant sliding bearing device according to claim 1, characterized in that, Two limiting rods (9) are fixedly installed on the bearing bush (6) and between the two sealing gaskets (7). The two limiting rods (9) are respectively inserted into the first fixing block (2) and the second fixing block (3).

6. A thrust-resistant sliding bearing device according to claim 1, characterized in that, The base (1), the first fixing block (2), and the two fixing columns (5) are integrally formed.

7. A thrust-resistant sliding bearing device according to claim 1, characterized in that, The two sealing gaskets (7) are in contact with the first fixing block (2) and the second fixing block (3), respectively.

8. A thrust-resistant sliding bearing device according to claim 3, characterized in that, The two ends of the second spring (20) are welded to the inner wall of the limiting block (19) and the sliding groove (17), respectively, and the two ends of the first spring (12) are welded to the inner wall of the sliding bar (11) and the limiting groove (4), respectively.