Durable enhanced spherical support

Abstract

The utility model provides a durable reinforced spherical support, which relates to the technical field of spherical supports and comprises an upper support plate and a lower support plate, a first spherical crown lining plate is arranged at the bottom of the upper support plate, a guide block is arranged on the surface of the lower support plate, a movable groove is arranged on the surface of the guide block, and a second spherical crown lining plate is arranged on the surface of the movable groove. The movable groove, the second spherical crown lining plate, the rotating groove and the thrust ball are adopted, stress is more evenly distributed through the second spherical crown lining plate and the movable groove which are evenly distributed in the circumferential direction, local stress concentration is reduced, and therefore the situation that fatigue damage of materials can be accelerated due to stress concentration is avoided; by means of flexible rotation of the thrust ball in the rotating groove, the connecting stability between the thrust ball and the rotating groove is enhanced, the abrasion resistance of the contact face is greatly improved, the abrasion problem caused by long-term relative movement is avoided, the overall service life of the support is effectively prolonged, and the durability of the support is remarkably enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of spherical bearings, in particular to a spherical bearing with enhanced durability. Background Art

[0002] According to a spherical steel bearing disclosed in Chinese Patent No. CN217352112U, a spherical crown liner is slidably arranged between an upper seat plate assembly and a lower seat plate assembly. The lower seat plate assembly includes a first bottom plate and a second bottom plate arranged up and down. The first bottom plate has a concave surface adapted to the spherical crown liner. By the connection form that the first bottom plate is detachably installed on the upper surface of the second bottom plate, the existing lower seat plate is divided into two independent components. When needed, the two can be independently produced without interference, greatly reducing the dependence on special equipment and the requirements for the site. Moreover, the second bottom plate can be prefabricated for inventory. When the model of the subsequent production batch is known, only by changing the production parameters of the first bottom plate, large-scale customization can be quickly achieved. After simple assembly, the production target can be completed, improving the production efficiency, which is very practical.

[0003] The following technical problems exist in the above comparative document and the prior art: At present, the structure of the existing spherical bearing is relatively simple. Stress concentration is likely to occur in areas such as the contact part between the spherical crown and the seat plate and the connection part of the seat plate. When these parts bear loads, stress concentration will accelerate the fatigue failure of the material, making the bearing more likely to have cracks and damage in these parts, reducing the durability of the bearing. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a spherical bearing with enhanced durability is proposed.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A spherical bearing with enhanced durability includes an upper bearing plate and a lower bearing plate. A first spherical crown liner is provided at the bottom of the upper bearing plate. A guide block is provided on the surface of the lower bearing plate. An activity groove is provided on the surface of the guide block. A second spherical crown liner is provided on the surface of the activity groove. A limit block is provided at the bottom of the upper bearing plate. Rotation grooves are provided on the top surface of the limit block and the bottom surface of the guide block. Thrust balls are provided on the surface of the rotation grooves.

[0006] Preferably, a first fixing bolt is provided on the surface of the upper bearing plate, and a second fixing bolt is provided on the surface of the lower bearing plate.

[0007] Preferably, the shape and position of the rotation groove are adapted to the thrust ball, and a plurality of rotation grooves and thrust balls are arranged in a circumferential array.

[0008] Preferably, the cross-section of the limit block is L-shaped, and the shape and position of the guide block are adapted to those of the limit block.

[0009] Preferably, the top surface of the second spherical crown liner is connected to the bottom surface of the upper support plate, and four groups of the movable grooves and the second spherical crown liners are arranged in a circumferential array.

[0010] Preferably, the shape of the movable groove is hemispherical, and the shape and position of the movable groove are adapted to those of the second spherical crown liner.

[0011] Preferably, the shape and position of the first spherical crown liner are adapted to those of the lower support plate, the lower support plate and the guide block are of an integrally formed structure, and the upper support plate and the limit block are of an integrally formed structure.

[0012] Advantageous Effects

[0013] In the present utility model, the movable groove, the second spherical crown liner, the rotating groove and the thrust ball are adopted. Through the second spherical crown liners and the movable grooves that are evenly distributed in the circumferential direction, each second spherical crown liner can respectively bear a part of the load and the deforming force. When the support is under complex stress conditions, in addition to the first spherical crown liner arranged at the center, through the synergistic effect of the second spherical crown liners arranged around, the stress is more evenly distributed, reducing local stress concentration. Thus, it is avoided that stress concentration will accelerate the fatigue failure of the material, reducing the possibility of cracks and damage appearing in each part of the support. At the same time, by utilizing the flexible rotation of the thrust ball in the rotating groove, when the upper support plate moves relative to the lower support plate, not only the connection stability between the two is enhanced, but also the wear resistance of the contact surface is greatly improved, avoiding the wear problem caused by long-term relative movement, effectively improving the overall service life of the support, more significantly enhancing its durability, and ensuring the reliability and stability of the support under various working conditions. Description of the Drawings

[0014] Figure 1 is the axonometric view of the present utility model;

[0015] Figure 2 is the internal structure diagram of the present utility model;

[0016] Figure 3 is the present utility model Figure 2 the enlarged view of A in;

[0017] Figure 4 is the internal three-dimensional Figure 1 ;

[0018] Figure 5 is the internal three-dimensional Figure 2 .

[0019] Legend Explanation:

[0020] 1. Upper support plate; 2. Lower support plate; 3. First spherical crown liner; 4. First fixing bolt; 5. Second fixing bolt; 6. Guide block; 7. Limit block; 8. Second spherical crown liner; 9. Activity groove; 10. Rotation groove; 11. Thrust ball. Detailed implementation mode

[0021] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments and drawings. However, the following embodiments are only the preferred embodiments of the present utility model, not all of them. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present utility model.

[0022] The specific embodiments of the present utility model will be described below in conjunction with the drawings. Specific Embodiment 1:

[0024] Refer to Figures 1-5 , a durability-enhanced spherical bearing, including an upper support plate 1 and a lower support plate 2. The upper support plate 1 serves as the upper load-bearing structure of the bearing system and directly bears the weight and load from the upper structure. The surface of the upper support plate 1 is provided with a first fixing bolt 4, and is fixedly connected to the upper structure through the first fixing bolt 4 on the surface of the upper support plate 1 to ensure the effective transfer of the load. At the same time, the bottom of the upper support plate 1 cooperates with the first spherical crown liner 3 and the second spherical crown liner 8 to realize the movement of the bearing. The surface of the lower support plate 2 is provided with a second fixing bolt 5. The lower support plate 2 serves as the lower support structure of the bearing system and is fixed on the bridge pier or the foundation structure. It is fixedly connected to the foundation structure through the second fixing bolt 5 on the surface of the lower support plate 2 to provide stable support. The bottom of the upper support plate 1 is provided with a first spherical crown liner 3. The shape and position of the first spherical crown liner 3 are adapted to the lower support plate 2. The first spherical crown liner 3 is one of the core force-transferring components of the bearing system and undertakes the main load-transferring task to ensure that the load can be evenly distributed and effectively transferred to the foundation structure. The surface of the lower support plate 2 is provided with a guide block 6. The lower support plate 2 and the guide block 6 are integrally formed structures.

[0025] The surface of the guide block 6 is provided with an activity groove 9. The shape of the activity groove 9 is hemispherical. The shape and position of the activity groove 9 are adapted to the second spherical crown liner 8. Through the setting of the activity groove 9, an activity space is provided for the second spherical crown liner 8. The surface of the activity groove 9 is provided with the second spherical crown liner 8. Four groups of the activity groove 9 and the second spherical crown liner 8 are arranged in a circumferential array. The top surface of the second spherical crown liner 8 is connected to the bottom surface of the upper support plate 1. Through the setting of the second spherical crown liner 8, each second spherical crown liner 8 can bear a part of the load and deformation force, so that the stress can be more evenly distributed when the bearing is under complex stress conditions, assisting the first spherical crown liner 3 to share the load and deformation force, and improving the durability and stability of the bearing. The bottom of the upper support plate 1 is provided with a limit block 7. The upper support plate 1 and the limit block 7 are of an integrally formed structure. The cross section of the limit block 7 is L-shaped. The shape and position of the guide block 6 are adapted to the limit block 7. Through the cooperation of the guide block 6 and the limit block 7, the displacement range of the upper support plate 1 is restricted, ensuring that the upper support plate 1 can maintain a stable posture and position during the displacement process. The top surface of the limit block 7 and the bottom surface of the guide block 6 are both provided with a rotation groove 10. The surface of the rotation groove 10 is provided with a thrust ball 11. The shape and position of the rotation groove 10 are adapted to the thrust ball 11. And a plurality of the rotation grooves 10 and the thrust balls 11 are arranged in a circumferential array. The rotation groove 10 provides a rotation space for the thrust ball 11, ensuring that the thrust ball 11 can freely rotate in the rotation groove 10, effectively reducing the friction and wear between the guide block 6 and the limit block 7, and enhancing the stability and wear resistance between the upper support plate 1 and the lower support plate 2.

[0026] When external vibrations and other situations occur, the first spherical crown liner 3 moves in the lower support plate 2, and through the second spherical crown liners 8 and the activity grooves 9 evenly distributed in the circumferential direction, each second spherical crown liner 8 can respectively bear a part of the load and deformation force. When the bearing is under complex stress conditions, in addition to the first spherical crown liner 3 arranged at the center, through the synergistic effect of the second spherical crown liners 8 arranged around, the stress is more evenly distributed, reducing local stress concentration, thereby avoiding the stress concentration that will accelerate the fatigue failure of the material. Through the cooperation of the first spherical crown liner 3 and the second spherical crown liner 8, the shaking and offset of the device are slowed down. At the same time, by using the flexible rotation of the thrust ball 11 in the rotation groove 10, when the upper support plate 1 moves relative to the lower support plate 2, not only the connection stability between the two is enhanced, but also the wear resistance of the contact surface is greatly improved, avoiding the wear problem caused by long-term relative movement, effectively improving the overall service life of the bearing, and more significantly enhancing its durability. Specific Embodiment Two:

[0028] On the premise of meeting the above structure, a nano - coating can be applied to the contact surface between the first spherical - crown liner 3 and the lower support plate 2. The nano - coating can have an extremely low coefficient of friction, reducing the wear of the support during movement. At the same time, it can also provide good corrosion resistance, significantly enhancing the service life of the support.

[0029] In summary:

[0030] 1. By adopting the movable groove 9, the second spherical - crown liner 8, the rotating groove 10 and the thrust ball 11, through the second spherical - crown liners 8 and movable grooves 9 evenly distributed in a circle, each second spherical - crown liner 8 can bear a part of the load and deformation force. When the support is under complex stress conditions, in addition to the first spherical - crown liner 3 set at the center, through the synergistic effect of the second spherical - crown liners 8 set around, the stress is more evenly distributed, reducing local stress concentration. Thus, it avoids the fatigue failure of materials accelerated by stress concentration, reducing the possibility of cracks and damage in each part of the support. At the same time, by utilizing the flexible rotation of the thrust ball 11 in the rotating groove 10, when the upper support plate 1 moves relative to the lower support plate 2, it not only enhances the connection stability between the two, but also greatly improves the wear - resistance of the contact surface, avoiding the wear problem caused by long - term relative movement, effectively improving the overall service life of the support, and more significantly enhancing its durability, ensuring the reliability and stability of the support under various working conditions.

[0031] In the present utility model, unless otherwise clearly specified and defined, the first feature being “above” or “below” the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being “above”, “over” and “on the top of” the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being “below”, “under” and “beneath” the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0032] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above - mentioned embodiments. The above - mentioned embodiments and the descriptions in the specification are only preferred examples of the present utility model, and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A durability-enhanced spherical bearing, comprising an upper bearing plate (1) and a lower bearing plate (2), characterized in that: A first spherical crown liner (3) is provided at the bottom of the upper bearing plate (1). A guide block (6) is provided on the surface of the lower bearing plate (2). An activity groove (9) is formed on the surface of the guide block (6). A second spherical crown liner (8) is provided on the surface of the activity groove (9). A limit block (7) is provided at the bottom of the upper bearing plate (1). Rotation grooves (10) are formed on the top surface of the limit block (7) and the bottom surface of the guide block (6). Thrust balls (11) are provided on the surface of the rotation grooves (10).

2. The durable enhanced spherical bearing according to claim 1, characterized in that: A first fixing bolt (4) is provided on the surface of the upper bearing plate (1). A second fixing bolt (5) is provided on the surface of the lower bearing plate (2).

3. The spherical bearing for enhancing durability according to claim 1, wherein: The shape and position of the rotation groove (10) are adapted to the thrust ball (11), and a plurality of rotation grooves (10) and thrust balls (11) are arranged in a circumferential array.

4. The durable enhanced spherical bearing according to claim 1, wherein: The cross-section of the limit block (7) is L-shaped, and the shape and position of the guide block (6) are adapted to the limit block (7).

5. The durable enhanced spherical bearing according to claim 1, characterized in that: The top surface of the second spherical crown liner (8) is connected to the bottom surface of the upper bearing plate (1), and four groups of activity grooves (9) and second spherical crown liners (8) are arranged in a circumferential array.

6. The durable enhanced spherical bearing according to claim 1, characterized in that: The shape of the activity groove (9) is hemispherical, and the shape and position of the activity groove (9) are adapted to the second spherical crown liner (8).

7. The spherical bearing for enhancing durability according to claim 1, wherein: The shape and position of the first spherical crown liner (3) are adapted to the lower bearing plate (2). The lower bearing plate (2) and the guide block (6) are of an integrally formed structure. The upper bearing plate (1) and the limit block (7) are of an integrally formed structure.

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