Plastic-coated spherical bearing isolation block
By combining metal reinforcement and polymer plastic shell design in the bearing isolation block, the existing plastic isolation block is solved, and the metal isolation block is low in strength and high cost is achieved, which is suitable for bearing applications in complex environments.
Patent Information
- Application Number
- CN202420845734.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The existing plastic bearing isolation blocks have low strength and low service life, while metal bearing isolation blocks have high cost and high weight.
A plastic-encapsulated ball bearing isolation block is designed, combining metal reinforcement and polymer plastic shell isolation block design. By placing the metal reinforcement in the core of the isolation block and wrapping it in the polymer plastic shell, an integral structure is formed to enhance the strength and bearing capacity of the isolation block and extend the service life.
It significantly improves the strength, load-bearing capacity and service life of the isolation block, reduces costs, is suitable for use in complex environments, and improves the stability and reliability of the bearings.
Smart Images
Figure CN222650383U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of bearing retainers, and in particular relates to a plastic-coated spherical bearing isolation block. Background Art
[0002] The slewing bearing is a special structural bearing that can bear large axial load, radial load and overturning moment and other total loads at the same time. It is widely used in engineering machinery, transportation machinery, wind power generation machinery and other fields. The slewing bearing can usually include an inner ring and an outer ring, steel ball rolling elements and isolation blocks. The steel ball rolling elements and isolation blocks are alternately arranged in the arc-shaped raceway formed by the outer ring and the inner ring. The two ends of the isolation blocks are made into concave spherical surfaces to adapt to the rolling elements, i.e., steel balls. The isolation blocks are usually made of plastic or metal materials. Among them, the plastic isolation blocks have the advantages of light weight, high strength and good self-lubricating performance, but their strength is weaker than that of metal isolation blocks. The impact load under complex working conditions during the operation of the bearing will have a greater impact on the reliability and service life of the plastic isolation blocks, which may cause the isolation blocks to deform or even break. The metal isolation blocks have the advantages of high strength and strong durability, but they are high in cost and heavy in weight. When installed on the slewing bearing, it will increase the total load borne by the bearing. This additional load may cause accelerated wear of the bearing and reduce its service life. Especially under the condition of high load or high speed operation, this effect is more significant. It can be seen that the existing technology needs to be further improved and enhanced. Utility Model Content
[0003] The utility model provides a plastic-coated spherical bearing isolation block to solve the problems that the existing bearing isolation blocks made of plastic material have low strength and short service life, while the bearing isolation blocks made of metal material have high cost and heavy weight. A plastic-coated spherical bearing isolation block is developed, which combines the isolation block design of a metal reinforcement and a polymer plastic shell, and can significantly improve the strength, load-bearing capacity and service life of the isolation block.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A plastic-coated spherical bearing isolation block comprises an isolation block body, both end faces of the isolation block body are concave spherical faces, the isolation block body comprises a metal reinforcement member at the core and a polymer plastic shell wrapping the metal reinforcement member, so as to enhance the strength and load-bearing capacity of the isolation block and extend the service life of the isolation block.
[0006] The plastic-coated spherical bearing isolation block of the utility model can significantly improve the pressure resistance and stability of the entire isolation block by placing a metal reinforcement in the core of the isolation block. The metal reinforcement in the core is an important guarantee for the strength of the isolation block. Since metal has excellent mechanical properties and strength, it can effectively resist external pressure and impact, and the polymer plastic shell not only has good toughness and elasticity, but also can resist certain impacts and vibrations. It can tightly wrap the metal reinforcement inside to form an integral structure, thereby enhancing the bearing capacity of the isolation block. In addition, the polymer plastic shell also has certain wear resistance and corrosion resistance, which can extend the service life of the isolation block. It can better meet the use requirements in various complex environments than plastic isolation blocks and metal isolation blocks, and improve the stability and reliability of the bearing.
[0007] In a preferred implementation, the metal reinforcement comprises a metal ring, the opening diameters of both ends of the metal ring gradually decrease toward the center, and a metal sheet is provided at the minimum diameter of the metal ring.
[0008] The openings at both ends of the metal ring gradually decrease in diameter toward the center, forming a cone-like structure. This design can more effectively disperse and withstand forces from all directions, improving the bearing capacity of the isolation block. The metal sheet is set at the minimum diameter of the metal ring to further enhance the strength of the isolation block. The metal sheet not only provides additional support, but also forms an integral part with the metal ring to resist external pressure and impact. This design makes the isolation block more stable and reliable when subjected to high loads, and is suitable for occasions that need to withstand high loads and impacts.
[0009] In a preferred implementation, the diameter of the metal ring is greater than or equal to the diameter of the concave spherical surface.
[0010] When the diameter of the metal ring is greater than or equal to the diameter of the concave spherical surface of the polymer plastic, the metal ring can better support and fix the polymer plastic part. This design makes the entire isolation block structure more stable and less prone to deformation or displacement, thereby improving the overall stability of the isolation block.
[0011] In a preferred implementation, the metal sheet is arched to enhance the support capability for the concave spherical surface.
[0012] The design of the arched metal sheet can more effectively disperse the pressure from the concave spherical surface instead of concentrating it on a certain point or area. This characteristic of dispersing force makes the isolation block more stable when under pressure, reducing the risk of deformation or damage caused by excessive local pressure.
[0013] In a preferred implementation, the metal sheet is provided with a first through hole at the center and a plurality of second through holes around the center, and the isolation block formed by the metal reinforcement wrapped with polymer plastic is provided with a first oil channel and a second oil channel connecting the two concave spherical surfaces.
[0014] The first oil channel and the second oil channel arranged at the center of the isolation block and around the center can reduce the contact area between the ball and the isolation block and reduce friction. The lubricating oil can enter the contact area between the ball and the isolation block more directly and effectively to achieve deep lubrication. In the process of flowing through the first oil channel and the second oil channel, the lubricating oil can take away part of the heat generated by friction and solve the problem of heat and wear.
[0015] In a preferred implementation, an oil storage space is enclosed between the two metal sheets and the metal ring.
[0016] The oil storage space design enclosed by the two metal sheets and the metal ring allows more lubricating oil to be stored inside the isolation block. This not only ensures that the bearing has sufficient lubricating oil supply during long-term operation, but also reduces the degradation of lubricating performance and increased wear caused by insufficient lubricating oil.
[0017] In a preferred implementation, the metal ring is provided with a third through hole connected to the oil storage space, and the isolation block formed by the metal reinforcement wrapped with the polymer plastic is correspondingly provided with a third oil channel connected to the oil storage space.
[0018] The third through hole and the third oil channel enable the lubricating oil in the oil storage space to flow smoothly to the parts that need lubrication. During the movement of the bearing, the lubricating oil can be continuously thrown out from the oil storage space through the third through hole and the third oil channel or enter the oil storage space from the third oil channel, ensuring that the concave spherical surface and other key parts are always fully lubricated. At the same time, the opening of the third oil channel improves the heat dissipation efficiency.
[0019] In a preferred implementation, a plurality of the third through holes are evenly arranged around the center of the metal ring.
[0020] In a preferred implementation, the concave spherical surface of the isolation block body is provided with an oil groove, and a plurality of oil grooves are arranged around the first oil channel.
[0021] In a preferred implementation, the metal reinforcement is made of stainless steel. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present application and do not constitute an improper limitation on the present invention. In the drawings:
[0023] Figure 1A schematic diagram of a three-dimensional structure of a schematic implementation of a plastic-coated spherical bearing isolation block of the present application is depicted;
[0024] Figure 2 A schematic diagram of a three-dimensional structure of a schematic implementation of a reinforced metal member of the present application is depicted;
[0025] Figure 3 A schematic diagram of the main structure of a schematic implementation of the plastic-coated spherical bearing isolation block of the present application is depicted;
[0026] Figure 4 This application is shown Figure 3 A schematic cross-sectional view of a schematic implementation scheme of part A;
[0027] Description of labels:
[0028] 1-metal reinforcement; 10-metal ring; 100-third through hole; 11-metal sheet; 110-first through hole; 111-second through hole; 12-oil storage space; 2-polymer plastic shell; 20-concave spherical surface; 21-oil groove; 22-first oil channel; 23-second oil channel; 24-third oil channel. DETAILED DESCRIPTION
[0029] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.
[0030] In the description of the present invention, it is necessary to understand that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the present invention, unless otherwise clearly specified and limited, a first feature being "upper" or "lower" than a second feature may be the first and second features directly contacting, or the first and second features indirectly contacting through an intermediate medium.
[0031] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.
[0032] In the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.
[0033] The utility model is described below in conjunction with the accompanying drawings.
[0034] The specific plans adopted are:
[0035] like Figure 1-4 As shown, the utility model provides a plastic-coated spherical bearing isolation block, including an isolation block body, both end surfaces of the isolation block body are concave spherical surfaces 20, the isolation block body includes a core metal reinforcement 1 and a polymer plastic shell 2 that wraps the metal reinforcement 1, so as to enhance the strength and bearing capacity of the isolation block and extend the service life of the isolation block.
[0036] The plastic-coated spherical bearing isolation block of the present application can significantly improve the compressive resistance and stability of the entire isolation block by placing the metal reinforcement 1 in the core of the isolation block. The metal reinforcement 1 in the core is an important guarantee for the strength of the isolation block. Since the metal has excellent mechanical properties and strength, it can effectively resist external pressure and impact, and the polymer plastic shell 2 not only has good toughness and elasticity, but also can resist certain impacts and vibrations. It can tightly wrap the metal reinforcement 1 inside to form an integral structure, thereby enhancing the bearing capacity of the isolation block. In addition, the polymer plastic shell 2 also has certain wear resistance and corrosion resistance, which can extend the service life of the isolation block. This isolation block design combining the metal reinforcement 1 and the polymer plastic shell 2 can significantly improve the strength, bearing capacity and service life of the isolation block. Compared with plastic isolation blocks and metal isolation blocks, it can well meet the use requirements in various complex environments and improve the stability and reliability of the bearing.
[0037] As a preferred embodiment of the present application, the metal reinforcement 1 includes a metal ring 10 , the opening diameters of both ends of the metal ring 10 gradually decrease toward the center, and a metal sheet 11 is provided at the minimum diameter of the metal ring 10 .
[0038] The caliber of the openings at both ends of the metal ring 10 gradually decreases toward the center, forming a cone-like structure. This design can more effectively disperse and withstand forces from all directions. When subjected to external pressure, the conical structure can evenly disperse the force to the entire metal ring 10, rather than concentrating it at a certain point or area, thereby improving the bearing capacity of the isolation block. The metal sheet 11 is arranged at the minimum caliber of the metal ring 10 to further enhance the strength of the isolation block. The metal sheet 11 can not only provide additional support, but also form an integral body with the metal ring 10 to jointly resist external pressure and impact. This design makes the isolation block more stable and reliable when subjected to high loads, and is suitable for occasions that need to withstand high loads and impacts.
[0039] As a preferred example of this implementation, the diameter of the metal ring 10 is greater than or equal to the diameter of the concave spherical surface 20 .
[0040] When the diameter of the metal ring 10 is greater than or equal to the diameter of the polymer plastic concave spherical surface 20, the metal ring 10 can better support and fix the polymer plastic part. This design makes the entire isolation block structure more stable and less prone to deformation or displacement, thereby improving the overall stability of the isolation block. A larger diameter of the metal ring 10 means that the cross-sectional area of the metal part is larger, so it has higher bending and torsion resistance. The increased contact area between the metal ring 10 and the polymer plastic concave spherical surface 20 helps to distribute stress more evenly. This can reduce stress concentration, reduce the risk of damage caused by excessive local pressure, and improve the durability of the isolation block. When subjected to external pressure or impact, the larger metal ring 10 can more effectively disperse the force, improve the bearing capacity of the isolation block, and reduce the risk of damage.
[0041] As a preferred embodiment of the present embodiment, the metal sheet 11 is arched to enhance the support capability of the concave spherical surface 20 .
[0042] The design of the arched metal sheet 11 can more effectively disperse the pressure from the concave spherical surface 20. The arched structure itself has excellent compressive resistance. It can evenly distribute the force to the entire metal sheet 11, rather than concentrating it at a certain point or area. This characteristic of dispersing force makes the isolation block more stable when under pressure, reducing the risk of deformation or damage caused by excessive local pressure. In addition, as part of the metal reinforcement 1, the arched design of the metal sheet 11 not only enhances the support capacity of the concave spherical surface 20, but also improves the rigidity of the entire isolation block structure. This rigid structure can better resist external shocks and vibrations, ensuring the stability and durability of the isolation block in harsh environments.
[0043] As a preferred embodiment of this implementation, a first through hole 110 is provided at the center of the metal sheet 11 and a plurality of second through holes 111 are provided around the center. The isolation block formed by the polymer plastic wrapped by the metal reinforcement 1 is provided with a first oil channel 22 and a second oil channel 23 connecting the two concave spherical surfaces 20.
[0044] The first oil channel 22 and the second oil channel 23 arranged at the center of the isolation block and around the center can reduce the contact area between the ball and the isolation block and reduce friction. The lubricating oil can enter the contact area between the ball and the isolation block more directly and effectively to achieve deep lubrication. In the process of flowing through the first oil channel 22 and the second oil channel 23, the lubricating oil can take away part of the heat generated by friction and solve the problem of heat and wear.
[0045] Furthermore, the concave spherical surface 20 of the isolation block body is provided with an oil groove 21, that is, a recessed groove arranged on the concave spherical surface 20, and a plurality of oil grooves 21 are arranged around the first oil channel 22, which can further reduce friction and improve lubrication between the ball and the isolation block.
[0046] As a preferred example of this implementation, an oil storage space 12 is formed between the two metal sheets 11 and the metal ring 10 .
[0047] The design of the oil storage space 12 enclosed between the two metal sheets 11 and the metal ring 10 allows more lubricating oil to be stored inside the isolation block. This not only ensures that the bearing has sufficient lubricating oil supply during long-term operation, but also reduces the degradation of lubricating performance and increased wear caused by insufficient lubricating oil. Specifically, during the movement of the bearing, the lubricating oil will be thrown out of the oil storage space 12 by the centrifugal force and supplied to the concave spherical surface 20 and other parts that need lubrication from the first oil channel 22 or the second oil channel 23. In this way, even under high-speed operation or high-load working conditions, the bearing can maintain a good lubrication state and reduce friction and wear.
[0048] Furthermore, the metal ring 10 is provided with a third through hole 100 connected to the oil storage space 12 , and the isolation block formed by the metal reinforcement 1 wrapped with polymer plastic is correspondingly provided with a third oil passage 24 connected to the oil storage space 12 .
[0049] The provision of the third through hole 100 and the third oil channel 24 enables the lubricating oil in the oil storage space 12 to flow smoothly to the parts that need lubrication. During the movement of the bearing, the lubricating oil can be continuously thrown out from the oil storage space 12 through the third through hole 100 and the third oil channel 24 or enter the oil storage space 12 from the third oil channel 24, ensuring that the concave spherical surface 20 and other key parts are always fully lubricated. At the same time, the opening of the third oil channel 24 improves the heat dissipation efficiency. The lubricating oil can take away more heat during the circulation process, which helps to reduce the operating temperature of the bearing. Since the design of the metal ring 10 itself has sufficient strength and stability, the opening of the third through hole 100 on the metal ring 10 will not have a significant impact on the overall strength of the isolation block. At the same time, the wrapping structure of the metal reinforcement 1 and the polymer plastic further enhances the strength and durability of the isolation block.
[0050] Specifically, a plurality of third through holes 100 are evenly arranged around the center of the metal ring 10 .
[0051] As a preferred embodiment of the present application, the metal reinforcement 1 is made of stainless steel.
[0052] The stainless steel metal reinforcement 1 has excellent mechanical strength. In terms of oil corrosion resistance, the stainless steel reinforcement has excellent corrosion resistance and is suitable for the use conditions of this application.
[0053] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.
[0054] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A plastic coated spherical bearing spacer, comprising a spacer body, both end surfaces of the spacer body being concave spherical surfaces, characterized in that: The isolation block body includes a metal reinforcement of the core and a polymer plastic shell wrapping the metal reinforcement to enhance the strength and bearing capacity of the isolation block and extend the service life of the isolation block. The metal reinforcement includes a metal ring, the opening diameters of both ends of the metal ring gradually decrease toward the center, and a metal sheet is provided at the minimum diameter of the metal ring.
2. The plastic-coated spherical bearing isolation block according to claim 1, characterized in that: The diameter of the metal ring is greater than or equal to the diameter of the concave spherical surface.
3. The plastic-coated spherical bearing isolation block according to claim 1, characterized in that: The metal sheet is arched to enhance the supporting capability of the concave spherical surface.
4. The plastic-coated spherical bearing isolation block according to claim 1, characterized in that: The metal sheet is provided with a first through hole at the center and a plurality of second through holes around the center. The isolation block formed by the metal reinforcement wrapped with the polymer plastic is provided with a first oil channel and a second oil channel connecting the two concave spherical surfaces.
5. The plastic-coated spherical bearing isolation block according to claim 1, characterized in that: An oil storage space is formed between the two metal sheets and the metal ring.
6. The plastic-coated spherical bearing spacer according to claim 5, characterized in that: The metal ring is provided with a third through hole connected to the oil storage space, and the isolation block formed by the metal reinforcement wrapped with the polymer plastic is correspondingly provided with a third oil channel connected to the oil storage space.
7. The plastic-coated spherical bearing spacer according to claim 6, characterized in that: A plurality of third through holes are evenly arranged around the center of the metal ring.
8. The plastic-coated spherical bearing spacer according to claim 4, characterized in that: The concave spherical surface of the isolation block body is provided with an oil groove, and a plurality of oil grooves are arranged around the first oil channel.
9. The plastic-coated spherical bearing isolation block according to claim 1, characterized in that: The metal reinforcement is made of stainless steel.