Segmented radial bearing

Abstract

The utility model relates to bearing technical field, concretely is a sectional radial bearing, including bearing section A, bearing section B, counterbore, screw, inlay hole, sliding block, bearing section A sets up as arc shape, the both ends end face of bearing section A forms 60 degree included angle, bearing section B sets up as arc shape, the both ends end face of bearing section B is parallel to each other, bearing section A and bearing section B alternate splicing into a circular bearing, the inner surface of circular bearing is sliding surface, counterbore is several, counterbore sets up in bearing section A and bearing section B, counterbore is opened by bearing inside to bearing outside. It provides a kind of high bearing, long life, self-lubricating, maintenance-free sectional radial copper alloy inlay solid lubricating bearing, can very good satisfy the use demand of pontoon type inner rotating tower single point mooring system.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, specifically a segmented radial bearing. Background Technology

[0002] Floating Production Storage and Offloading (FPSO) vessels are large-scale, integrated offshore oil production bases that separate oil and gas, treat oily wastewater, generate electricity, provide heating, store and transport crude oil products, and integrate personnel living quarters and production command systems. Utilizing FPSOs for oil and gas development is an important model for offshore oilfield development in my country. The float-type internal turret single-point mooring system is a key component of the FPSO. Its basic principle is to secure the FPSO to the sea using a mooring point that can rotate 360°. Due to the wind vane effect, the FPSO will align itself in the direction of least environmental forces, allowing for dynamic and static transfer of the medium during rotation. Bearings play a crucial role in the float-type internal turret single-point mooring system. The equipment operates under harsh conditions (high load, no lubrication, long service life), thus placing higher demands on the bearings. Utility Model Content

[0003] In view of the deficiencies of the prior art, this utility model provides a segmented radial bearing, which is a segmented radial copper alloy inlaid solid lubricated bearing with high load capacity, long service life, self-lubrication, and maintenance-free, which can well meet the usage requirements of the float-type inner turret single-point mooring system.

[0004] To achieve the above objectives, the present invention provides a segmented radial bearing, comprising bearing segment A, bearing segment B, countersunk holes, screws, insert holes, and a slider; bearing segment A is arc-shaped; the two end faces of bearing segment A form a 60° included angle; bearing segment B is arc-shaped; the two end faces of bearing segment B are parallel to each other; bearing segment A and bearing segment B are alternately spliced ​​to form a circular bearing; the inner surface of the circular bearing is a sliding surface; there are several countersunk holes; the countersunk holes are located on bearing segments A and B; the countersunk holes extend from the inside of the bearing to the outside; the screws cooperate with the countersunk holes, connecting bearing segments A and B to an external connector; the insert holes are staggered on bearing segments A and B; and the slider is located within the insert holes.

[0005] Furthermore, a gap is left between bearing section A and bearing section B.

[0006] Furthermore, the bearing segment A consists of 6 parts.

[0007] Furthermore, the bearing segment B consists of 6 segments.

[0008] Furthermore, the slider is cylindrical.

[0009] Furthermore, the surface of the slider and the sliding surface are on the same horizontal line.

[0010] Furthermore, the inlay hole is provided in 8 rows and 27 columns; the diameter of the inlay hole is less than or equal to 20 mm; the area of ​​the inlay hole occupies 25%-30% of the sliding surface.

[0011] Furthermore, it also includes bosses disposed on both end faces of the bearing segment A and both end faces of the bearing segment B.

[0012] Furthermore, the countersunk hole is provided in 4 rows and 18 columns, and the diameter of the countersunk hole is 26mm.

[0013] The beneficial effects of this invention are as follows: Taking into account the load-bearing, speed, and lubrication conditions of single-point bearings for inner turret float-type systems, this invention designs a high-load-bearing, long-life, self-lubricating, and maintenance-free segmented radial copper alloy inlaid solid lubricated bearing, which can well meet the usage requirements of float-type inner turret single-point mooring systems. This type of bearing also has wide applications in industries such as water conservancy, hydropower, and mining. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is the front view of the present invention; Figure 3 for Figure 2 AA section view; Figure 4 for Figure 3 A magnified view of a portion of point I; Figure 5 This is a cross-sectional view of bearing section A of this utility model; Figure 6 This is a cross-sectional view of bearing section B of this utility model; Figure 7 for Figure 6 Enlarged view of section II; Figure 8 This is a schematic diagram of the structure of bearing section B of this utility model; In the diagram: 100, bearing section A, 200. Bearing section B, 300, Countersunk hole, 400. Screws 500, Inlay Hole, 600, slider 700, Sliding surface, 800, boss. Detailed Implementation

[0015] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0016] like Figure 1-8 As shown, one embodiment of this utility model discloses a segmented radial bearing, including bearing segment A100, bearing segment B200, countersunk hole 300, screw 400, insert hole 500, and slider 600; bearing segment A100 is arc-shaped; the two end faces of bearing segment A100 form a 60° angle; bearing segment B200 is arc-shaped; the two end faces of bearing segment B200 are parallel to each other; bearing segment A100 and bearing segment B200 are alternately spliced ​​to form a circular bearing; The inner surface of the bearing is a sliding surface 700; there are several countersunk holes 300; the countersunk holes 300 are provided in bearing section A100 and bearing section B200; the countersunk holes 300 are opened from the inside of the bearing to the outside of the bearing; the screws 400 cooperate with the countersunk holes 300, and the bearing section A100 and bearing section B200 are connected to the external connector by the screws 400; the insert holes 500 are arranged alternately on the bearing section A100 and bearing section B200; the slider 600 is provided in the insert hole 500.

[0017] In one embodiment, a gap is left between bearing section A100 and bearing section B200.

[0018] It should be noted that the gaps are left to facilitate installation. If a seamless splicing method is used for installation, there may be situations where it cannot be installed under actual working conditions.

[0019] In one embodiment, there are 6 bearing segments A100.

[0020] In one embodiment, there are six bearing segments B200.

[0021] In one embodiment, the slider 600 is cylindrical.

[0022] In one embodiment, the surface of the slider 600 and the sliding surface 700 are on the same horizontal line.

[0023] In one embodiment, the inlay hole 500 is provided with 8 rows and 27 columns; the diameter of the inlay hole 500 is less than or equal to 20 mm; the area of ​​the inlay hole 500 occupies 25%-30% of the sliding surface.

[0024] In one embodiment, a boss 800 is further provided on both end faces of bearing segment A100 and both end faces of bearing segment B200.

[0025] In one embodiment, the countersunk hole 300 is provided with 4 rows and 18 columns, and the diameter of the countersunk hole is 26mm; the mounting screw 400 has a hole size of φ18.

[0026] It should be noted that this utility model relates to a radial copper alloy inlaid solid lubricated bearing, which can meet the requirements of a single-point mooring system for a float-type inner turret. Due to the large size of the bearing, to facilitate bearing manufacturing and on-site installation, the bearing adopts a segmented structure. Each bearing segment consists of a copper alloy matrix and a self-lubricating block 600. Its characteristic is: 1) The segmented radial copper alloy inlaid solid lubricated bearing is composed of 6 bearing segments A100 and 6 bearing segments B200 alternately spliced ​​together, as shown in the figure. Bearing segments A100 and B200 are fixed to the bearing base on the external connecting parts by screws 400, ensuring the stability of the bearing segment installation and operation. Figure 4 As shown.

[0027] 2) Bearing section A100 and bearing section B200 have different structures. Bearing section A100 has 60° angles on both sides, while bearing section B200 has parallel sides. Figure 5 , Figure 6 As shown, this arrangement ensures that the entire bearing, when assembled, forms a complete circular ring.

[0028] 3) The sliding surfaces 700 of bearing sections A100 and B200 are designed with staggered self-lubricating blocks 600 and insert holes 500 for embedding the self-lubricating blocks 600. The size of the insert holes 500 is determined according to the size of the bearing base, but it is not recommended to exceed 20mm. The area of ​​the insert holes 500 occupies approximately 25%-30% of the bearing sliding surface 700. The insert holes 500 should avoid the bearing mounting screw holes 400. The adjacent rows of insert holes 500 should be staggered to ensure full coverage of solid lubrication along the circumferential running path of the bearing during operation. Based on the bearing's external dimensions, this design includes 8 rows and 27 columns of Φ20 insert holes 500 to achieve better lubrication performance. Figure 7 As shown.

[0029] 4) Both bearing sections A100 and B200 are designed with bosses 800mm wide and h deep on both sides to facilitate grinding during installation. Due to machining errors in the diameter of the sliding shaft mounting base and the mounting holes, if these errors accumulate to a certain point, interference may occur in the bearing section at that location. Therefore, adding bosses 800mm facilitates grinding and installation. Without machining bosses 800mm, the entire end face would need to be ground. This requirement is based on considerations of installation processability.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "above," "below," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

Claims

1. A segmented radial bearing, characterized in that: The bearing includes bearing segment A, which is arc-shaped, with its two end faces forming a 60° angle; bearing segment B, which is also arc-shaped, with its two end faces parallel to each other; bearing segments A and B are alternately spliced ​​to form a circular bearing; the inner surface of the circular bearing is a sliding surface; several countersunk holes are provided on bearing segments A and B, extending from the inside of the bearing to the outside; screws cooperate with the countersunk holes to connect bearing segments A and B to an external connector; insert holes are staggered on bearing segments A and B; and a slider is disposed within the insert holes.

2. A segmented radial bearing according to claim 1, characterized in that: There is a gap between bearing section A and bearing section B.

3. A segmented radial bearing according to claim 1, characterized in that: The bearing section A consists of 6 segments.

4. A segmented radial bearing according to claim 1, characterized in that: The bearing section B consists of 6 segments.

5. A segmented radial bearing according to claim 1, characterized in that: The slider is cylindrical.

6. A segmented radial bearing according to claim 1, characterized in that: The surface of the slider and the sliding surface are on the same horizontal line.

7. A segmented radial bearing according to claim 1, characterized in that: The inlay hole has 8 rows and 27 columns; the diameter of the inlay hole is less than or equal to 20 mm; the area of ​​the inlay hole occupies 25%-30% of the sliding surface.

8. A segmented radial bearing according to claim 1, characterized in that: It also includes bosses, which are disposed on the two end faces of the bearing segment A and the two end faces of the bearing segment B.

9. A segmented radial bearing according to claim 1, characterized in that: The countersunk hole has 4 rows and 18 columns, and the diameter of the countersunk hole is 26mm.

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