Texture assembly capable of preventing working face from being glued and bearing

Abstract

The utility model provides a texture component and a bearing for preventing gluing of a working face, the texture component comprises a calabash-shaped storage concave area arranged on the working face, the calabash-shaped storage concave area comprises at least two annular concave parts and / or circular concave parts, the annular concave parts and / or the circular concave parts are arranged, and the annular concave parts and / or the circular concave parts are arranged in parallel. And the adjacent circular concave parts and / or arc-shaped concave parts are tangent and communicate with each other, so that the gourd-shaped storage concave area with the concave parts communicating with each other is formed. The bearing comprises the texture assembly, and when the bearing is a thrust bearing, the texture assembly is arranged on a bearing plane of a thrust pad of the thrust bearing; when the bearing is a radial bearing, the texture assembly is arranged on the inner bearing curved surface and / or the outer bearing curved surface of the radial bearing. The utility model has the advantages of improving the wear resistance and the anti-gluing performance of the working surface and the like.

Description

Technical Field

[0001] The utility model relates to the field of moving parts, in particular to a texture component and a bearing for preventing the gluing of working surfaces. Background Art

[0002] In the wind power industry, bearings often suffer from poor lubrication due to working conditions such as variable loads, variable speeds, and low-speed heavy loads. The bearings may stick within a very short time, resulting in surface burns and even gluing. At this time, the bearings cannot work properly, leading to equipment damage and low equipment service life. At the same time, the surface burns and gluing of the bearings caused by poor lubrication have no or very few external manifestations in the early stage, making the equipment have low safety and reliability under working conditions such as variable loads, variable speeds, and low-speed heavy loads, and prone to safety problems. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a texture component and a bearing that improve the wear resistance and anti-gluing performance of the working surface.

[0004] To solve the above technical problem, the technical solution proposed by the utility model is as follows:

[0005] A texture component for preventing the gluing of a working surface, comprising a gourd-shaped storage concave area provided on the working surface. The gourd-shaped storage concave area includes at least two annular concave parts and / or circular concave parts. The annular concave parts and / or circular concave parts are arranged, and adjacent annular concave parts and / or circular concave parts are tangent and communicate with each other to form the interconnected gourd-shaped storage concave area.

[0006] As a further improvement of the above technical solution:

[0007] There are multiple gourd-shaped storage concave areas, and the multiple gourd-shaped storage concave areas are arranged in an array on the working surface. The texture area ratio of the gourd-shaped storage concave area is 5%-15%. The texture area ratio is the area ratio of the area of the gourd-shaped storage concave area in the working surface.

[0008] The diameters of the annular concave parts and / or circular concave parts are the same.

[0009] The annular concave part is an annular groove or an arc-shaped groove; the circular concave part is a spherical groove or a cylindrical groove.

[0010] A bearing includes the above-mentioned texture component. When the bearing is a thrust bearing, the texture component is provided on the bearing plane of the thrust pad of the thrust bearing. When the bearing is a radial bearing, the texture component is provided on the inner bearing surface and / or the outer bearing surface of the radial bearing.

[0011] As a further improvement of the above technical solution:

[0012] When the bearing is a thrust bearing, a plurality of the gourd-shaped storage recesses are arranged radially along the thrust bearing to form an anti-seizure unit; there are multiple groups of the anti-seizure units, and the multiple groups of the anti-seizure units are arranged circumferentially along the thrust bearing; when the bearing is a radial bearing, a plurality of the gourd-shaped storage recesses are arranged axially covering the load-bearing area of the radial bearing.

[0013] When the bearing is a thrust bearing, the concave portions of the gourd-shaped storage recesses are arranged radially along the bearing, and the distances from the corresponding gourd-shaped storage recesses of adjacent anti-seizure units to the center of the bearing are the same.

[0014] There are 5 - 30 gourd-shaped storage recesses in each anti-seizure unit, and there are 10 - 30 groups of the anti-seizure units.

[0015] The radius of the annular recess and / or the circular recess is 200 - 300 μm, and the recess depth is 25 - 40 μm.

[0016] The surface roughness Ra of the bearing is Ra < 0.50 μm.

[0017] Compared with the prior art, the advantages of the present utility model are as follows:

[0018] The texture component of the present utility model adopts gourd-shaped storage recesses. The gourd-shaped storage recesses include at least two annular recesses and / or circular recesses. The annular recesses and / or circular recesses are arranged, and the adjacent annular recesses and / or circular recesses are tangent to each other and communicate with each other to form a gourd-shaped storage recess with interconnected recesses. The shape and arrangement of the gourd-shaped storage recesses adopted by the present utility model enable more effective isolation / temporary storage of abrasive particles, reduce the wear rate, and improve the wear resistance of the working surface; and can give full play to the lubricating effect of the lubricating oil more fully, reduce friction, improve the anti-seizure performance and load-bearing capacity of the working surface, and extend the service life. The bearing of the present utility model also has the above advantages, and enables the bearing to work normally and safely, ensuring the stable and reliable operation of the equipment. Specifically:

[0019] When the lubrication condition of the working surface is good, the lubricating oil flow field can be improved through the gourd-shaped storage recesses, the oil film thickness can be increased, the hydrodynamic pressure effect can be enhanced, the anti-seizure ability can be improved, and the service life can be extended; in the dry friction or boundary lubrication state under extremely oil-starved conditions, the lubrication can be improved by storing a small amount of lubricating oil through the annular recesses and / or circular recesses, thereby reducing friction in the dry friction or boundary lubrication state. At the same time, the gourd-shaped storage recesses can store a large amount of abrasive debris, reduce the damage to the working surface caused by three-body abrasive particles (three-body abrasive particle wear is usually caused by the surface material shedding caused by the third-body hard particles during friction), and reduce the risk of three-body abrasive particle wear. Description of the Drawings

[0020] The present utility model will be described in more detail below based on embodiments with reference to the accompanying drawings. Among them:

[0021] Figure 1 is a schematic structural diagram of the texture component of the present utility model in a specific application;

[0022] Figure 2 is Figure 1 an enlarged view of part A of

[0023] Figure 3 is another schematic structural diagram of the texture component of the present utility model in a specific application;

[0024] Figure 4 is Figure 3 an enlarged view of part B of

[0025] Figure 5 is a schematic structural diagram of the texture component of the present utility model in a radial bearing;

[0026] Figure 6 is a physical photo of the texture component of the present utility model;

[0027] Figure 7 is a comparison curve graph of the friction coefficients of the bearing provided with the texture component of the present utility model and a smooth surface bearing.

[0028] Each label in the figure represents:

[0029] 1, texture component; 11, gourd-shaped storage concave area; 12, annular concave part; 13, circular concave part; 2, working surface; 3, bearing; 31, load-bearing curved surface. Specific Embodiments

[0030] The present utility model will be further described in detail below in conjunction with the accompanying drawings of the specification and specific embodiments, but the protection scope of the present utility model is not limited thereby.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model.

[0032] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0033] In the present utility model, unless otherwise clearly specified and defined, terms such as "assembled", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] Figures 1 to 4 An embodiment of the texture component for preventing the gluing of the working surface of the present utility model is shown. The textured surface refers to a surface artificially processed with microstructures of tiny protrusions or pits to achieve the purpose of improving lubrication and reducing wear. In this embodiment, the texture component 1 includes a gourd-shaped storage recess 11, and the gourd-shaped storage recess 11 is provided on the working surface 2. The gourd-shaped storage recess 11 includes at least two annular recesses 12 and / or circular recesses 13. The annular recesses 12 and / or circular recesses 13 are arranged, and adjacent annular recesses 12 and / or circular recesses 13 are tangent to each other and communicate with each other to form the gourd-shaped storage recess 11 with interconnected recesses. The present utility model adopts the shape and arrangement of the gourd-shaped storage recess 11 to more effectively isolate / temporarily store abrasive grains, reduce the wear rate, and improve the wear resistance of the working surface 2; and can give full play to the lubricating effect of the lubricating oil more fully, reduce friction, improve the anti-galling performance and bearing capacity of the working surface 2, and extend the service life. Specifically:

[0035] When the lubrication condition of the working surface 2 is good, the lubricating oil flow field can be improved through the gourd-shaped storage recess 11, the oil film thickness can be increased, the hydrodynamic pressure effect can be enhanced, the anti-galling ability can be improved, and the service life can be extended; in the dry friction or boundary lubrication state under extremely oil-starved conditions, a small amount of lubricating oil can be stored through the annular recesses 12 and / or circular recesses 13 to improve lubrication, thereby reducing friction in the dry friction or boundary lubrication state. At the same time, the gourd-shaped storage recess 11 can store a large amount of abrasive debris, reduce the damage to the working surface 2 caused by three-body abrasive grains (three-body abrasive grain wear is usually caused by the shedding of surface materials due to the third-body hard particles during friction), and reduce the risk of three-body abrasive grain wear.

[0036] Such as Figures 3 to 5As shown in the figure, in this embodiment, the gourd-shaped storage recess 11 includes two annular recesses 12, and the annular recesses 12 form a mutually connected gourd-shaped storage recess 11. The gourd-shaped storage recess 11 can increase the contact area of the texture, making the space for storing lubricating oil and abrasive particles larger; and the arc-shaped boundary of the recess is not prone to stress concentration, better ensuring the lubrication and load-bearing requirements of the working surface 2. In other embodiments, the arrangement quantity of the annular recess 12 and / or the circular recess 13 can also be adjusted according to the lubrication and load-bearing requirements of the working surface 2, such as it can also be set to three, four, etc.

[0037] Furthermore, there are multiple gourd-shaped storage recesses 11, and the multiple gourd-shaped storage recesses 11 are arranged in an array on the working surface 2, thereby further improving the lubrication effect and load-bearing requirements of the working surface. At the same time, the texture area ratio of the gourd-shaped storage recess 11 is 5%-15%. The texture area ratio is the area ratio of the area of the gourd-shaped storage recess 11 in the working surface 2, which ensures the lubrication and contact performance of the working surface 2.

[0038] At the same time, the value of the texture area ratio is related to the lubrication and friction performance requirements of the working surface 2. For example, if it is necessary to enhance the lubrication effect (suitable for environments with poor lubrication conditions), the texture area ratio is appropriately increased within the value range of the texture area ratio; if it is necessary to increase the contact friction force (suitable for high-precision friction surfaces), the texture area ratio is appropriately decreased within the value range of the texture area ratio.

[0039] At the same time, the depth of the annular recess 12 and / or the circular recess 13 determines the ability of the recess to store lubricating fluid and the anti-wear effect. In an environment where more lubricating oil needs to be stored, the depth of the recess can be appropriately increased within the value range of the recess depth; in a light-load working condition, the depth of the recess can be appropriately decreased within the value range of the recess depth.

[0040] In this embodiment, the diameters of the annular recesses 12 and / or the circular recesses 13 are the same, with a compact layout, convenient processing, and can ensure excellent lubrication and contact performance. In other embodiments, the diameters of the annular recesses 12 and / or the circular recesses 13 may not be the same.

[0041] Such as Figure 4 shown, the annular recess 12 can be an annular groove or an arc-shaped groove; as Figure 2 shown, the circular recess 13 can be a spherical groove or a cylindrical groove. Specifically, it can be set according to the actual lubrication and load-bearing requirements of the working surface 2.

[0042] Figure 1 and Figure 3An embodiment of the bearing is shown. The bearing 3 includes the texture component 1 as described in the above embodiment, and the texture component 1 is disposed on the load-bearing surface of the bearing 3. In this embodiment, when the bearing 3 is a thrust bearing, the texture component 1 is disposed on the load-bearing plane of the thrust pad of the thrust bearing. The bearing of the present invention also has the above advantages, and in this embodiment, the arrangement of the texture component 1 in the bearing 3 is compact and occupies a small space, ensuring the effective and reliable operation of the bearing 3, enabling the equipment to operate safely and reliably under working conditions such as variable load, variable speed, low speed and heavy load, and avoiding the occurrence of safety problems.

[0043] Further, a plurality of gourd-shaped storage recesses 11 are arranged along the radial direction of the bearing 3 to form an anti-seizure unit. There are multiple groups of anti-seizure units, and the multiple groups of anti-seizure units are arranged along the circumferential direction of the bearing 3. This ensures the anti-seizure ability of the working surface 2 of the bearing while not affecting the normal operation of the bearing 3.

[0044] Furthermore, the concave portions (annular concave portions 12 and / or circular concave portions 13) of the gourd-shaped storage recesses 11 are arranged along the radial direction of the bearing 3, and the distances from the corresponding gourd-shaped storage recesses 11 of adjacent anti-seizure units to the center of the bearing 3 are the same. Its layout is compact and convenient for processing.

[0045] As Figure 1 shown, in this embodiment, there are 7 gourd-shaped storage recesses 11 in each anti-seizure unit, and there are 20 groups of anti-seizure units. In other embodiments, the number of gourd-shaped storage recesses 11 provided in each anti-seizure unit and the number of groups of anti-seizure units can be adjusted according to the diameter of the working surface 2 of the bearing 3 and functional requirements. For example, the gourd-shaped storage recesses 11 in each anti-seizure unit can also be set to 5 - 30, and the anti-seizure units can also be set to 10 - 30 groups.

[0046] In other embodiments, as Figure 5 shown, when the bearing 3 is also set as a radial bearing, at this time, the texture component 1 is disposed on the load-bearing curved surface 31 (inner load-bearing curved surface and / or outer load-bearing curved surface) of the radial bearing. The multiple gourd-shaped storage recesses 11 of the texture component 1 are arranged in an array on the inner load-bearing curved surface / or outer load-bearing curved surface, and the multiple gourd-shaped storage recesses 11 are arranged to cover the axial direction of the load-bearing area of the radial bearing, thereby further improving the lubrication effect and load-bearing demand of the working surface.

[0047] Furthermore, the radius of the annular recess 12 and / or the circular recess 13 is 200 - 300 μm, and the depth of the annular recess 12 and / or the circular recess 13 is 25 - 40 μm. The specific dimensions of the above-mentioned recesses are conducive to controlling the flow and distribution of the fluid, thereby further enhancing the lubrication and anti-friction performance of the working surface 2. The adjustment of the diameter of the annular recess 12 and / or the circular recess 13 is determined according to the surface friction requirements and the size of the working surface 2. Specifically, in a high-load and low-speed friction environment, the radius of the annular recess 12 and / or the circular recess 13 can be appropriately increased within the range of the recess radius; in a light-load and high-speed friction environment, the radius of the annular recess 12 and / or the circular recess 13 can be appropriately reduced within the range of the recess radius. In this embodiment, the interval length between adjacent gourd-shaped storage recesses 11 is 500 - 1500 μm.

[0048] Furthermore, the surface roughness Ra of the bearing 3 is Ra < 0.50 μm. To reduce the influence of the roughness of the working surface 2 of the bearing 3 on the lubrication performance, to facilitate the processing of the texture component 1, and to improve the anti-seizure performance of the bearing 3.

[0049] In this embodiment, taking Figure 6 the physical photo as an example, the gourd-shaped storage recess 11 is two tangent circular recesses 13, the depth of the circular recess 13 is 30 μm, and the radius of the circular recess 13 is 250 μm; there are 7 gourd-shaped storage recesses 11 for each anti-seizure unit, there are 20 anti-seizure units, and the interval length between adjacent gourd-shaped storage recesses 11 is 700 μm.

[0050] Figure 7 The figure shows a comparison curve graph of the friction coefficients of the bearing 3 provided with the texture component 1 and the smooth surface bearing in this embodiment. Among them, the X-axis represents time, the Y-axis represents the friction coefficient, and the experimental time is set to 15 min. It can be seen from the attached figure that the friction coefficient of the smooth surface bearing is relatively high, and under the same load and speed, a seizure phenomenon of a sharp increase in the friction coefficient occurs, indicating that the lack of an effective lubrication structure on the surface leads to poor friction performance. While the friction coefficient of the working surface 2 prepared by the present utility model is significantly reduced, and with the passage of time, under the same load and speed, no seizure phenomenon occurs, and the texture component 1 of the working surface 2 can effectively store lubricating oil, which effectively improves the lubrication effect and reduces the friction coefficient, especially showing outstanding performance in the dry friction or boundary lubrication state.

[0051] Although the present utility model has been described with reference to the preferred embodiments, various modifications can be made thereto and components thereof can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any manner. The present utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A texture component for preventing the gluing of the working surface, characterized in that, It includes a gourd-shaped storage concave area provided on the working surface. The gourd-shaped storage concave area includes at least two annular concave parts and / or circular concave parts. The annular concave parts and / or circular concave parts are arranged, and adjacent annular concave parts and / or circular concave parts are tangent to each other and communicate with each other to form the interconnected gourd-shaped storage concave area.

2. The texture component for preventing the working surface from gluing according to claim 1, wherein, There are multiple gourd-shaped storage concave areas, and the multiple gourd-shaped storage concave areas are arranged in an array on the working surface; the texture area ratio of the gourd-shaped storage concave area is 5%-15%, and the texture area ratio is the area ratio of the area of the gourd-shaped storage concave area in the working surface.

3. The texture component for preventing the working surface from sticking as claimed in claim 1, wherein The diameters of all the annular concave parts and / or circular concave parts are the same.

4. The texture component for preventing the working surface from gluing according to claim 1, characterized in that, The annular concave part is an annular groove or an arc groove; the circular concave part is a spherical groove or a cylindrical groove.

5. A bearing, characterized in that, It includes the texture component according to any one of claims 1 to 4. When the bearing is a thrust bearing, the texture component is provided on the bearing plane of the thrust pad of the thrust bearing; when the bearing is a radial bearing, the texture component is provided on the inner bearing curved surface and / or the outer bearing curved surface of the radial bearing.

6. The bearing according to claim 5, wherein When the bearing is a thrust bearing, multiple gourd-shaped storage concave areas are arranged along the radial direction of the thrust bearing to form an anti-seizure unit; there are multiple groups of the anti-seizure units, and the multiple groups of anti-seizure units are arranged along the circumferential direction of the thrust bearing; when the bearing is a radial bearing, multiple gourd-shaped storage concave areas are arranged to cover along the axial direction of the bearing area of the radial bearing.

7. The bearing according to claim 6, characterized in that, When the bearing is a thrust bearing, the concave parts of the gourd-shaped storage concave area are arranged along the radial direction of the bearing, and the distances from the corresponding gourd-shaped storage concave areas of adjacent anti-seizure units to the center of the bearing are the same.

8. The bearing according to claim 7, characterized in that, Each anti-seizure unit has 5-30 gourd-shaped storage concave areas, and there are 10-30 groups of the anti-seizure units.

9. The bearing according to claim 5, characterized in that, The radius of the annular concave part and / or the circular concave part is 200-300 μm, and the concave depth is 25-40 μm.

10. The bearing according to claim 5, characterized in that, The surface roughness Ra of the bearing is Ra < 0.50 μm.

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