Thrust washer

By designing rubber anti-slip rings and anti-slip marks in the thrust washers to increase friction and ensuring stable connections through the design of the collars and keyways, the existing thrust washers are solved for loosening and sliding when vibrating, improving stability and accuracy, extending service life and protecting the lubricating medium.

CN222823524UActive Publication Date: 2025-05-02浙江百德精密五金有限公司
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Patent Information

Application Number
CN202421978425.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-15
Publication Date
2025-05-02
Estimated Expiration
2034-08-15

AI Technical Summary

Technical Problem

When existing thrust washers are subjected to strong vibration, the bolts or nuts are prone to loosening and sliding, resulting in unnecessary sliding or rotation, affecting stability and accuracy.

Method used

A thrust washer including a metal washer, an inner mounting ring, an oil storage channel, a dust cover, an oil outlet pipe, an anti-slip part and a connecting part is designed. Among them, the anti-slip part increases friction with adjacent parts through the rubber anti-slip ring and anti-slip mark, prevents sliding or rotation, and ensures a stable connection of the anti-slip part through the design of the clamp ring and the keyway.

Benefits of technology

By increasing friction, preventing unnecessary sliding or rotation, improving the stability and accuracy of the thrust washer, extending service life, and protecting the lubricating medium through dustproof mesh to avoid contamination.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of sealing parts, and particularly relates to a thrust washer. Comprising a metal gasket; the inner mounting ring is arranged in the metal gasket, and the interior of the inner mounting ring is of a circular groove structure and used for being matched with a protruding part on the surface of the shaft; the oil storage channels are formed in the metal gasket and penetrate through the side face of the metal gasket from top to bottom, and the multiple oil storage channels are evenly distributed in the circumferential direction at intervals; the dustproof cover is arranged on the upper side in the oil storage channel; the oil outlet pipe is arranged between the metal gasket and the inner mounting ring, and one end of the oil outlet pipe communicates with the oil storage channel; the anti-skid part is arranged on the outer surface of the metal gasket and used for increasing the friction force between the anti-skid part and an adjacent part and preventing unnecessary sliding or rotation; the connecting part is arranged on the metal gasket, and the connecting part is in interference fit with the anti-skid part.
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Description

Technical Field

[0001] The utility model belongs to the technical field of sealing components, in particular to a thrust washer. Background Art

[0002] A thrust washer is a flat, disc-shaped component, usually made of metal or composite material, designed to reduce friction and provide support for rotating or reciprocating machinery. Its primary function is to distribute axial loads and prevent metal-to-metal contact between rotating components (such as shafts and bearings), thereby minimizing wear and ensuring smooth operation.

[0003] The utility model patent with the announcement number CN202646614U discloses a thrust washer. The utility model discloses a thrust washer, including a ring body, a groove is provided on the ring body, and a gear shaft hole is provided in the groove. The thrust washer provided by the utility model can be better adjusted and more convenient for the circulation of lubricating oil, thereby extending the service life of differential parts.

[0004] Although this technology can make the lubricating oil flow more smoothly and extend the service life of parts, the upper and lower end faces of the gasket are mostly smooth planes. The friction between the smooth planes and the bolt heads, nuts and connected parts is very small. When the bolts or nuts are subjected to strong vibrations, the bolts or nuts will still loosen and slide. Utility Model Content

[0005] The utility model aims to solve the above-mentioned technical problems and provide a thrust washer which increases the friction with adjacent parts and prevents unnecessary sliding or rotation.

[0006] In view of this, the utility model provides a thrust washer, comprising:

[0007] Metal washers;

[0008] The inner mounting ring is arranged inside the metal washer, and the inner portion of the inner mounting ring is a circular groove structure for matching with the raised portion of the shaft surface;

[0009] An oil storage channel is provided on the metal gasket, and the oil storage channel runs through the side surface of the metal gasket from top to bottom. There are a plurality of oil storage channels, which are evenly spaced and distributed in the circumferential direction;

[0010] A dust cover is arranged on the upper side of the oil storage channel;

[0011] The oil outlet pipe is arranged between the metal washer and the inner mounting ring, and one end of the oil outlet pipe is connected to the oil storage channel;

[0012] The anti-slip part is provided on the outer surface of the metal washer to increase the friction with the adjacent parts and prevent unnecessary sliding or rotation;

[0013] The connecting part is arranged on the metal washer, and the connecting part is interference connected with the anti-slip part.

[0014] In the above technical solution, further, the anti-slip part is a rubber anti-slip ring.

[0015] In any of the above technical solutions, further, a plurality of anti-slip grooves are provided on the outside of the anti-slip ring.

[0016] In any of the above technical solutions, further, the connecting portion includes:

[0017] Support rings are arranged on the upper and lower sides of the metal gasket;

[0018] A positioning ring, arranged on the supporting ring;

[0019] A clamping ring is connected to the anti-slip ring, and the clamping ring is wrapped around the positioning ring;

[0020] The keyway is arranged inside the clamping ring, and the keyway is clamped and connected with the positioning ring.

[0021] In any of the above technical solutions, further, a square groove is provided at the bottom of the clamping ring for easy opening of the clamping ring, and there are multiple square grooves, which are connected to the key groove.

[0022] In any of the above technical solutions, further, a dustproof component is included, and the dustproof component includes:

[0023] The ear plate is arranged on the inner wall of the inner mounting ring by bolt connection;

[0024] A fixing ring is arranged on the ear plate, and the fixing ring is located at the oil outlet end of the oil outlet pipe;

[0025] The dustproof net is arranged inside the fixing ring and is located at the oil outlet end of the oil outlet pipe.

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

[0027] 1. The anti-slip part increases the friction between the contact surface and the adjacent parts to prevent unnecessary sliding or rotation, making the thrust washer more stable and improving its stability and accuracy;

[0028] 2. The anti-slip pattern increases the friction with the adjacent surface, preventing the gasket from accidentally shifting or sliding during operation, thus ensuring a tight connection and stability between components;

[0029] 3. The clamp ring is firmly fixed on the positioning ring to ensure that the anti-slip part will not loosen or fail during use, providing additional strength support and stability, thus providing a stable connection between the protective part and the metal gasket. The clamp ring is made of rubber, which is convenient for removing the protective part from the metal gasket, facilitating replacement or maintenance, and providing reliable performance and long-lasting service life;

[0030] 4. The dustproof net is located at the oil outlet end of the oil outlet pipe to prevent dust, foreign matter or other pollutants from entering the oil outlet pipe, thereby protecting the key components of the equipment from the influence and damage of the external environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0032] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model;

[0033] Figure 3 It is a cross-sectional view of the utility model;

[0034] Figure 4 It is an exploded view of the utility model;

[0035] Figure 5 This is a schematic diagram of the three-dimensional structure of the dustproof component of the utility model;

[0036] The reference numerals in the figure are: 1. metal gasket; 2. inner mounting ring; 3. oil storage channel; 4. dust cover; 5. oil outlet pipe; 6. anti-skid part; 7. connecting part; 71. support ring; 72. positioning ring; 73. clamping ring; 74. keyway; 8. anti-skid pattern; 9. square groove; 10. dustproof component; 101. ear plate; 102. fixing ring; 103. dustproof net. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0038] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0039] Embodiment 1:

[0040] like Figure 1-Figure 4 As shown, this embodiment provides a thrust washer, comprising:

[0041] Metal washer 1;

[0042] The inner mounting ring 2 is arranged inside the metal washer 1, and the inner portion of the inner mounting ring 2 is a circular groove structure for matching with the raised portion of the shaft surface;

[0043] The oil storage channel 3 is opened on the metal gasket 1, and the oil storage channel 3 passes through the side surface of the metal gasket 1 from top to bottom. There are multiple oil storage channels 3, which are evenly spaced and distributed in the circumferential direction;

[0044] A dust cover 4 is arranged on the upper side of the oil storage channel 3;

[0045] The oil outlet pipe 5 is arranged between the metal washer 1 and the inner mounting ring 2, and one end of the oil outlet pipe 5 is connected to the oil storage channel 3;

[0046] The anti-slip portion 6 is provided on the outer surface of the metal washer 1 to increase the friction with adjacent parts and prevent unnecessary sliding or rotation;

[0047] The connecting portion 7 is disposed on the metal washer 1 , and the connecting portion 7 is interference connected with the anti-slip portion 6 .

[0048] In the present technical solution, the thrust washer is composed of a metal washer 1 and an inner mounting ring 2. The inner mounting ring 2 has a circular groove structure inside. This groove structure is designed to match the raised part on the shaft surface. This design enables the thrust washer to be firmly fixed on the shaft to prevent it from sliding or rotating in the axial direction. A plurality of oil storage channels 3 are provided on the metal washer 1. These oil storage channels 3 run from the upper side of the metal washer 1 to the lower side and are evenly spaced along the circumference. The function of the oil storage channels 3 is to store lubricating oil or grease to ensure the lubrication of the contact surface between the shaft and the inner mounting ring 2 and reduce friction and wear. The dust cover 4 is arranged on the upper side of the oil storage channel 3. Its main function is to prevent dust, dirt or other impurities from entering the oil storage channel 3, thereby maintaining the cleanliness and effectiveness of the lubricating oil or grease. The oil outlet pipe 5 is arranged between the metal washer 1 and the inner mounting ring 2, and one end is connected to the oil storage channel 3. This design ensures that the lubricating medium in the oil storage channel 3 can be effectively transported to the contact surface between the inner mounting ring 2 and the shaft through the oil outlet pipe 5, thereby maintaining a good lubrication state. An anti-skid portion 6 is provided on the outer surface of the metal washer 1, the purpose of which is to increase the friction force with the contact surface of adjacent parts and prevent the thrust washer from unnecessary sliding or rotation during use. The connecting portion 7 is interference-connected with the anti-skid portion 6, which enhances the fixation and stability of the thrust washer and facilitates the disassembly and replacement of the anti-skid portion 6. The thrust washer matches the raised portion of the shaft surface through the groove structure of the inner mounting ring 2, and uses the oil storage channel 3 to store the lubricating medium. At the same time, the lubricating medium is protected by the dust cover 4 and transported by the oil outlet pipe 5, which effectively reduces friction and wear, thereby extending the service life and performance of related mechanical parts. The thrust washer increases the friction force with the contact surface of adjacent parts through the anti-skid portion 6 to prevent unnecessary sliding or rotation, making the thrust washer more stable and improving its stability and precision.

[0049] like Figure 1 and Figure 4 As shown, in this embodiment, the anti-skid portion 6 is optimized to be a rubber anti-skid ring.

[0050] In the present technical solution, the key part of the thrust washer is that it uses a rubber anti-skid ring as the anti-skid part 6. The rubber material has good elasticity and anti-skid properties, which can effectively increase the friction of the washer on the contact surface. When the thrust washer is installed on the relevant machinery or equipment components, the rubber anti-skid ring is in close contact and fixed on the contact surface. The elasticity of the rubber material enables it to adapt to the slight unevenness of the surface and provide the necessary damping effect when subjected to force.

[0051] like Figure 1 and Figure 4 As shown, in this embodiment, it is optimized that a plurality of anti-slip grooves 8 are provided on the outside of the anti-slip ring.

[0052] In the present technical solution, a plurality of anti-skid patterns 8 are provided on the outside of the rubber anti-skid ring. These patterns are usually fine concave-convex or staggered designs. The function of the anti-skid patterns 8 is to increase the contact area and further improve the anti-skid effect. The anti-skid patterns 8 can also effectively prevent the thrust washer from accidentally moving or sliding due to force or vibration after installation, thereby ensuring its stability and reliability during assembly and use. Through this design, the thrust washer can not only effectively prevent the equipment from generating excessive friction and vibration during operation, but also reduce noise and improve the reliability of mechanical assembly, extend the service life of the equipment and reduce maintenance costs.

[0053] Embodiment 2:

[0054] This embodiment provides a thrust washer, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0055] like Figure 1 and Figure 4 As shown, in this embodiment, the connection portion 7 is optimized to include:

[0056] Support rings 71 are arranged on the upper and lower sides of the metal gasket 1;

[0057] A positioning ring 72 is disposed on the supporting ring 71;

[0058] A clamping ring 73 is connected to the anti-slip ring, and the clamping ring 73 is wrapped around the positioning ring 72;

[0059] The key groove 74 is provided inside the clamping ring 73 , and the key groove 74 is clamped and connected with the positioning ring 72 .

[0060] In the present technical solution, the support ring 71 is located on the upper and lower sides of the metal gasket 1, and its main function is to provide additional support and stability. The support ring 71 is usually made of a solid material, which can withstand the pressure and force during the assembly process to ensure that the gasket can be correctly positioned and work. The positioning ring 72 is installed on the support ring 71, and its design purpose is to ensure that the anti-slip part 6 can be accurately positioned and remain stable during installation. The positioning ring 72 usually has a specific geometric shape or structure, which can be properly matched with other components (such as the clamping ring 73 and the anti-slip ring) to ensure the accuracy and reliability of the overall assembly. The clamping ring 73 is connected to the anti-slip ring and wrapped around the positioning ring 72. The clamping ring 73 usually has a special structure that can provide a strong fixing force and ensure that the anti-slip part 6 is firmly fixed on the positioning ring 72. The design of the clamping ring 73 can be achieved through various engineering means to ensure that it will not loosen or fail during use. The keyway 74 is located inside the clamping ring 73 and is clamped and connected to the positioning ring 72. This connection method utilizes the design of the keyway 74 so that the clamping ring 73 can fit tightly in the structure of the positioning ring 72 to provide additional strength support and stability. The setting of the keyway 74 can be optimized according to specific requirements and design standards to ensure the reliability and safety of assembly and use.

[0061] Working principle:

[0062] When this thrust washer is assembled in the corresponding equipment or mechanical component, the support ring 71 ensures the stability and structural integrity of the metal washer 1 through its strong supporting force, the positioning ring 72 ensures that the anti-slip part 6 is accurately positioned during the installation process and maintains stability during use, thereby preventing movement or failure due to external force or vibration. The clamping ring 73 ensures that the anti-slip ring can be tightly fixed on the positioning ring 72 through its fixing force and connection method, preventing it from moving or failing during use. The setting of the keyway 74 effectively enhances the connection between the clamping ring 73 and the positioning ring 72, provides additional safety and reliability, and ensures the stability and performance of the overall system. The clamping ring 73 is made of rubber material, which makes it easy for the user to remove it from the positioning ring 72, thereby providing a stable connection between the protective part and the metal washer 1, and at the same time facilitating the removal of the protective part from the metal washer 1, which is convenient for replacement or maintenance, and provides reliable performance and a long service life.

[0063] like Figure 1 and Figure 4 As shown, in this embodiment, it is optimized that a square groove 9 is provided at the bottom of the clamp ring 73 for easy opening of the clamp ring 73 , and there are multiple square grooves 9 , which are connected to the key groove 74 .

[0064] In the present technical solution, the clamping ring 73 is made of rubber material, which makes it easy for the user to remove it from the positioning ring 72. The bottom of the clamping ring 73 is provided with a plurality of square grooves 9 that are easy to pry apart. The design of these grooves makes it easier to operate the clamping ring 73 when it needs to be installed or removed. Through this design, the user can directly and easily pry apart the clamping ring 73, so that the clamping ring 73 is opened or fixed on the positioning ring 72 to meet different installation or maintenance requirements. The square groove 9 is connected to the key groove 74, which means that they are structurally closely connected and interact with each other. The clamping ring 73 completely wraps the positioning ring 72 through the key groove 74. The appearance of the square groove 9 allows the user to directly pry apart the square groove 9. The groove 9 makes it easier for the clamping ring 73 to be pried apart. After the clamping ring 73 is pried apart, the clamping ring 73 can be removed from the positioning ring 72. When the anti-slip portion 6 needs to be installed, the user pries the clamping ring 73 apart through the square groove 9, then puts the pried apart clamping ring 73 on the positioning ring 72, and then loosens the clamping ring 73. The clamping ring 73 is elastic, and under the action of the elasticity, the clamping ring 73 returns to its original state, providing additional functionality, so that the position and fixity of the clamping ring 73 can be adjusted more accurately and controllably during installation and operation. The square groove 9 provides multiple operating points, which also increases the flexibility and convenience of operation, and is particularly effective when operating in a narrow or complex space.

[0065] Embodiment 3:

[0066] This embodiment provides a thrust washer, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0067] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in this embodiment, the optimization further includes a dustproof component 10, and the dustproof component 10 includes:

[0068] The ear plate 101 is arranged on the inner wall of the inner mounting ring 2 by bolt connection;

[0069] The fixing ring 102 is arranged on the ear plate 101, and the fixing ring 102 is located at the oil outlet end of the oil outlet pipe 5;

[0070] The dustproof net 103 is arranged inside the fixing ring 102 , and is located at the oil outlet end of the oil outlet pipe 5 .

[0071] In the present technical solution, the ear plate 101 is arranged on the inner wall of the inner mounting ring 2 by means of bolt connection. The inner mounting ring 2 is usually located in the internal structure of the equipment. As a part of the thrust washer, its main function is to support and position other components and provide a basis for assembly. The fixing ring 102 is installed on the ear plate 101. It is located at the oil outlet end of the oil outlet pipe 5. The oil outlet end is the pipe through which the lubricating oil flows out. The setting of the fixing ring 102 ensures that the dustproof net 103 can be tightly fixed near the outlet of the oil outlet pipe 5 and provides the necessary support and stability. The dustproof net 103 is arranged inside the fixing ring 102 and is located at the oil outlet end of the oil outlet pipe 5. The dustproof net 103 prevents dust, foreign matter or other contaminants from entering the oil outlet pipe 5, thereby protecting the key components of the equipment from the influence and damage of the external environment.

[0072] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A thrust washer comprising: Metal washer (1); An inner mounting ring (2) is arranged inside the metal washer (1), and the inner portion of the inner mounting ring (2) is a circular groove structure for matching with the raised portion of the shaft surface; An oil storage channel (3) is provided on the metal gasket (1), and the oil storage channel (3) passes through the side surface of the metal gasket (1) from top to bottom. There are a plurality of oil storage channels (3) which are evenly spaced and distributed in the circumferential direction; A dust cover (4) is arranged on the upper inner side of the oil storage channel (3); An oil outlet pipe (5) is arranged between the metal gasket (1) and the inner mounting ring (2), and one end of the oil outlet pipe (5) is connected to the oil storage channel (3); It is characterized in that An anti-slip portion (6) is arranged on the outer surface of the metal washer (1) and is used to increase the friction with adjacent parts to prevent unnecessary sliding or rotation; A connecting portion (7) is arranged on the metal washer (1), and the connecting portion (7) is interference-connected with the anti-slip portion (6).

2. A thrust washer according to claim 1, characterized in that: The anti-skid portion (6) is a rubber anti-skid ring.

3. A thrust washer according to claim 2, characterized in that: The anti-skid ring is provided with a plurality of anti-skid patterns (8) on the outside.

4. A thrust washer according to claim 1, characterized in that: The connecting portion (7) comprises: A support ring (71) is arranged on the upper and lower sides of the metal gasket (1); A positioning ring (72) is arranged on the supporting ring (71); A clamping ring (73) connected to the anti-slip ring, wherein the clamping ring (73) is wrapped around the positioning ring (72); A key groove (74) is provided inside the clamping ring (73), and the key groove (74) is clamped and connected with the positioning ring (72).

5. A thrust washer according to claim 4, characterized in that: The bottom of the clamping ring (73) is provided with a square groove (9) for easily breaking open the clamping ring (73), and the square groove (9) is provided in plurality, and the square groove (9) is communicated with the key groove (74).

6. A thrust washer according to claim 1, characterized in that: Also included is a dustproof component (10), the dustproof component (10) comprising: An ear plate (101) is arranged on the inner wall of the inner mounting ring (2) by means of bolt connection; A fixing ring (102) is arranged on the ear plate (101), and the fixing ring (102) is located at the oil outlet end of the oil outlet pipe (5); A dustproof net (103) is arranged inside the fixing ring (102), and the dustproof net (103) is located at the oil outlet end of the oil outlet pipe (5).