Polycrystalline diamond radial centralizing sliding bearing

Abstract

The utility model discloses a polycrystalline diamond radial centralizing sliding bearing which comprises a static ring, a movable ring arranged on the inner side of the static ring, a wear-resistant pad and a first polycrystalline diamond layer arranged on the inner side of the movable ring, a second polycrystalline diamond layer arranged on the outer side of the static ring, and a rolling ball arranged on the static ring. A first lubricating groove and a second lubricating groove are formed in the static ring, a first filter screen is fixedly connected to the top of the first lubricating groove, a first retention groove is fixedly connected to the bottom end of the first lubricating groove, a first lubricating channel and a first calandria are communicated to the first retention groove, and a second filter screen is fixedly connected to the top of the second lubricating groove. The bottom end of the second lubricating groove is fixedly connected with a second detention groove, and the second detention groove communicates with a second calandria and a second lubricating channel. By means of the device, the first lubricating groove, the second lubricating groove, the calandria and the lubricating channel are conveyed to the rolling balls, so that the lubricating efficiency is improved, and frictional wear is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to engineering element technical field, especially relates to a polycrystal diamond radial righting sliding bearing. BACKGROUND

[0002] Polycrystal diamond radial righting sliding bearing is mainly applied to high load, complex working condition industrial equipment, especially widely used in petroleum drilling, which needs to bear high strength pressure, and is harsh to bearing.

[0003] The prior art engineering element technology adopts simple bearing for use, but this mode is prone to wear, deformation and the like under high temperature, high pressure and complex environment, like the polycrystal diamond radial righting sliding bearing disclosed in Chinese patent with the application number CN202020509183.0, which adopts polycrystal diamond friction part on the static ring or dynamic ring to be fixed on the base body through the cast tungsten carbide layer, so that the polycrystal diamond friction part does not fall off even under large load, and the reliability of bearing work is improved, but the bearing cannot be lubricated by lubricant, and the service life cannot be enhanced, and the bearing can be damaged for a long time. UTILITY MODEL CONTENT

[0004] The utility model discloses a polycrystal diamond radial righting sliding bearing, which can significantly improve the service life of the bearing, reduce friction and wear, and is particularly suitable for harsh industrial application occasions by wear-resistant pad, first polycrystal diamond layer and second polycrystal diamond layer. In addition, the static ring is also provided with a rolling ball, and first and second lubricating grooves are designed inside, and a filter screen, a retention groove and a lubricating channel are provided. These structures ensure the effective layered supply of lubricant, and the lubricating efficiency is improved by conveying the lubricant to the rolling ball through the discharge pipe and the lubricating channel, thereby reducing friction and wear, and being particularly suitable for high-load industrial applications.

[0005] The utility model discloses a polycrystal diamond radial righting sliding bearing, which can significantly improve the service life of the bearing, reduce friction and wear, and is particularly suitable for harsh industrial application occasions by wear-resistant pad, first polycrystal diamond layer and second polycrystal diamond layer. In addition, the static ring is also provided with a rolling ball, and first and second lubricating grooves are designed inside, and a filter screen, a retention groove and a lubricating channel are provided. These structures ensure the effective layered supply of lubricant, and the lubricating efficiency is improved by conveying the lubricant to the rolling ball through the discharge pipe and the lubricating channel, thereby reducing friction and wear, and being particularly suitable for high-load industrial applications.

[0006] The utility model relates to a kind of polycrystalline diamond radial righting sliding bearing, the static ring is equipped in the outside of dynamic ring, the static ring and dynamic ring are annular.By above device, by static ring and dynamic ring, the contact between static ring and dynamic ring rotating shaft, provide a stable support surface, ensure that shaft does not occur radial deviation when high-speed rotation.

[0007] The utility model relates to a kind of polycrystalline diamond radial righting sliding bearing, the first polycrystalline diamond layer is fixedly connected with dynamic ring, and the wear pad is fixedly connected with the inner wall of first polycrystalline diamond layer.By above device, by first polycrystalline diamond layer and wear pad, improve the wear resistance of dynamic ring, first polycrystalline diamond layer can keep lower wear rate under long-term friction, prolong the service life of bearing.

[0008] The utility model relates to a kind of polycrystalline diamond radial righting sliding bearing, be provided with rolling groove on the static ring, and the rolling ball is rotatably connected in rolling groove inside.By above device, by rolling groove, it is convenient to support rolling ball, it is convenient to rotate.

[0009] The utility model relates to a kind of polycrystalline diamond radial righting sliding bearing, be provided with slide rail on the dynamic ring, and the rolling ball is rollably connected in slide rail inside.By above device, by slide rail, it is convenient to make rolling ball roll, to make dynamic ring rotate.

[0010] The utility model relates to a kind of polycrystalline diamond radial righting sliding bearing, the first lubricating groove is located at the right side of second lubricating groove, the first lubricating groove is communicated with top first retention groove, the second lubricating groove is communicated with bottom second retention groove, first sealing cover and second sealing cover are detachably connected with the top of first lubricating groove and second lubricating groove respectively.By above device, by first lubricating groove and second lubricating groove, it is convenient to flow lubricant to rolling ball, improve life, first sealing cover and second sealing cover prevent impurity from blocking first lubricating groove and second lubricating groove when working.

[0011] The utility model relates to a kind of polycrystalline diamond radial righting sliding bearing, the first retention groove and second retention groove are annular, the first retention groove and second retention groove are three layers, three layers the first retention groove is communicated by first drain pipe, and three layers the second retention groove is communicated by second drain pipe.By above device, by first retention groove and second retention groove, it is convenient to store lubricant, and gradually flow to another layer's first retention groove and second retention groove through drain pipe.

[0012] The utility model relates to a kind of polycrystalline diamond radial righting sliding bearing, the first lubrication passage, second lubrication passage are all communicated with rolling groove, the first lubrication passage is located the side wall of first retention groove, the second lubrication passage is located the side wall of second retention groove.Through the above device, through first lubrication passage and second lubrication passage, lubricant is conveniently led to rolling groove, to lubricate rolling ball, improve service life, reduce friction and heat, extend the working time of bearing.

[0013] Beneficial effects

[0014] Compared with prior art, the polycrystalline diamond radial righting sliding bearing, by wear-resistant pad, first polycrystalline diamond layer and second polycrystalline diamond layer, high hardness and wear resistance can significantly improve the service life of bearing, reduce friction and wear, especially suitable for harsh industrial application occasions.In addition, the static ring is also provided with rolling ball, first and second lubrication grooves are designed in the interior, and equipped with filter screen, retention groove and lubrication passage.These structures ensure the effective layered supply of lubricant, and are transported to rolling ball through discharge pipe and lubrication passage, so as to improve lubrication efficiency, reduce friction and wear, especially suitable for high-load industrial applications. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model is further illustrated below in connection with drawings and examples;

[0016] Figure 1 It is the front view of the utility model polycrystalline diamond radial righting sliding bearing;

[0017] Figure 2 It is the utility model polycrystalline diamond radial righting sliding bearing Figure 1 Internal structure diagram;

[0018] Figure 3 It is the utility model polycrystalline diamond radial righting sliding bearing Figure 1 Top sectional view;

[0019] Figure 4 It is the utility model polycrystalline diamond radial righting sliding bearing in Figure 2 Zoom in view of middle A;

[0020] Figure 5 It is the utility model polycrystalline diamond radial righting sliding bearing in Figure 3 Zoom in view of middle B.

[0021] Legend:

[0022] 1. static ring; 2. dynamic ring; 3. wear pad; 4. first polycrystalline diamond layer; 5. slide rail; 6. rolling ball; 7. rolling groove; 8. second polycrystalline diamond layer; 9. first lubricating groove; 10. first retention groove; 11. first drain pipe; 12. first lubricating channel; 13. first filter screen; 14. first sealing cover; 15. second lubricating groove; 16. second filter screen; 17. second sealing cover; 18. second retention groove; 19. second drain pipe; 20. second lubricating channel. DETAILED DESCRIPTION

[0023] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0024] Referring to Figures 1-5 , the utility model embodiment polycrystalline diamond radial righting sliding bearing, it includes: static ring 1, the inside of static ring 1 is provided with dynamic ring 2, static ring 1 is set in the outside of dynamic ring 2, static ring 1 and dynamic ring 2 are annular, the inside of dynamic ring 2 is provided with wear pad 3 and first polycrystalline diamond layer 4, wear pad 3 reduces friction, improves the service life of bearing, first polycrystalline diamond layer 4 enhances wear resistance, first polycrystalline diamond layer 4 is fixedly connected with dynamic ring 2, wear pad 3 is fixedly connected with the inner wall of first polycrystalline diamond layer 4, the outside of static ring 1 is provided with second polycrystalline diamond layer 8, static ring 1 is provided with rolling ball 6, rolling ball 6 improves the stability and efficiency of movement, static ring 1 is provided with rolling groove 7, rolling ball 6 is rotatably connected in the inside of rolling groove 7, dynamic ring 2 is provided with slide rail 5, and rolling ball 6 is rotatably connected in the inside of slide rail 5.

[0025] The first lubricating groove 9 and the second lubricating groove 15 are arranged in the static ring 1, the first lubricating groove 9 and the second lubricating groove 15 enable the lubricant to enter the rolling groove 7, the first lubricating groove 9 is fixedly connected with the first filter screen 13 at the top, the first filter screen 13 filters impurities, the first lubricating groove 9 is fixedly connected with the first retention groove 10 at the bottom, the first retention groove 10 stores and controls the flow of the lubricant, the first retention groove 10 is communicated with the first lubricating channel 12 and the first discharge pipe 11, the second lubricating groove 15 is fixedly connected with the second filter screen 16 at the top, the second lubricating groove 15 is fixedly connected with the second retention groove 18 at the bottom, the first lubricating groove 9 is located at the right side of the second lubricating groove 15, the first lubricating groove 9 is communicated with the first retention groove 10 at the top, the second lubricating groove 15 is communicated with the second retention groove 18 at the bottom, the first lubricating groove 9 and the second lubricating groove 15 are detachably connected with the first sealing cover 14 and the second sealing cover 17 at the top, respectively, the first sealing cover 14 and the second sealing cover 17 prevent external impurities from entering the interior, the second retention groove 18 is communicated with the second discharge pipe 19 and the second lubricating channel 20, the first retention groove 10 and the second retention groove 18 are annular, the first retention groove 10 and the second retention groove 18 are three layers, the three layers of the first retention groove 10 are communicated through the first discharge pipe 11, the three layers of the second retention groove 18 are communicated through the second discharge pipe 19, the first lubricating channel 12 and the second lubricating channel 20 are communicated with the rolling groove 7, the first lubricating channel 12 is located at the side wall of the first retention groove 10, and the second lubricating channel 20 is located at the side wall of the second retention groove 18.

[0026] Working principle: in use, the dynamic ring 2 and the static ring 1 work in cooperation, the dynamic ring 2 reduces friction through the wear-resistant pad 3 and the first polycrystal diamond layer 4, and the static ring 1 enhances external protection through the second polycrystal diamond layer 8. The rolling ball 6 rolls between the slide rail 5 and the rolling groove 7, ensuring smooth operation between the dynamic ring 2 and the static ring 1, the lubricating system supplies lubricant in layers through the first lubricating groove 9 and the second lubricating groove 15, the first filter screen 13 and the second filter screen 16 filter out impurities, the lubricant enters the rolling groove 7 through the first discharge pipe 11 and the second discharge pipe 19 and the first lubricating channel 12 and the second lubricating channel 20, lubricates the rolling ball 6, ensures that the sliding bearing can still operate smoothly under high load, and effectively prolongs the service life of the equipment.

[0027] The embodiments of the utility model are explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A polycrystalline diamond radial centralizer plain bearing, characterized in that Include: The static ring (1) is provided with a dynamic ring (2) on the inside, the dynamic ring (2) is provided with a wear pad (3) and a first polycrystalline diamond layer (4) on the inside, the static ring (1) is provided with a second polycrystalline diamond layer (8) on the outside, and the static ring (1) is provided with a ball (6); The static ring (1) is provided with a first lubricating groove (9) and a second lubricating groove (15), the first lubricating groove (9) is fixedly connected with a first filter screen (13) at the top, the first lubricating groove (9) is fixedly connected with a first retention groove (10) at the bottom, the first retention groove (10) is communicated with a first lubricating channel (12) and a first drain pipe (11), the second lubricating groove (15) is fixedly connected with a second filter screen (16) at the top, the second lubricating groove (15) is fixedly connected with a second retention groove (18) at the bottom, and the second retention groove (18) is communicated with a second drain pipe (19) and a second lubricating channel (20).

2. The polycrystalline diamond radial centralizer plain bearing according to claim 1, characterized in that The static ring (1) is sleeved outside the dynamic ring (2), and the static ring (1) and the dynamic ring (2) are annular.

3. The polycrystalline diamond radial centralizer plain bearing of claim 1, wherein, The first polycrystalline diamond layer (4) is fixedly connected with the dynamic ring (2), and the wear pad (3) is fixedly connected with the inner wall of the first polycrystalline diamond layer (4).

4. The polycrystalline diamond radial centralizer plain bearing of claim 1, wherein, The static ring (1) is provided with a rolling groove (7), and the ball (6) is rotatably connected inside the rolling groove (7).

5. The polycrystalline diamond radial centralizer plain bearing of claim 1, wherein, The dynamic ring (2) is provided with a sliding rail (5), and the ball (6) is rollingly connected inside the sliding rail (5).

6. The polycrystalline diamond radial centralizer plain bearing of claim 1, wherein, The first lubricating groove (9) is located on the right side of the second lubricating groove (15), the first lubricating groove (9) is communicated with the first retention groove (10) at the top, the second lubricating groove (15) is communicated with the second retention groove (18) at the bottom, and the first lubricating groove (9) and the second lubricating groove (15) are respectively detachably connected with a first sealing cover (14) and a second sealing cover (17) at the top.

7. The polycrystalline diamond radial centralizer plain bearing of claim 1, wherein, The first retention groove (10) and the second retention groove (18) are annular, and the first retention groove (10) and the second retention groove (18) are three layers, the first retention groove (10) is communicated through the first drain pipe (11) between the three layers, and the second retention groove (18) is communicated through the second drain pipe (19) between the three layers.

8. The polycrystalline diamond radial stabilizer journal bearing of claim 4, wherein, The first lubricating channel (12) and the second lubricating channel (20) are communicated with the rolling groove (7), the first lubricating channel (12) is located on the side wall of the first retention groove (10), and the second lubricating channel (20) is located on the side wall of the second retention groove (18).

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