Radial slide bearing tilting pad surface self-lubricating structure and manufacturing method

Abstract

The application discloses a radial sliding bearing tilting pad surface self-lubricating structure and a manufacturing method, and relates to a curved surface non-uniform cylinder array self-lubricating structure, which is manufactured by using ultraviolet polarized light curing technology and an additive manufacturing method; in the ultraviolet polarized light curing process, the polarization principle of light is used to obtain light spots with different sizes so as to cure the self-lubricating material on the tilting pad surface. The radial sliding bearing tilting pad surface self-lubricating structure and the ultraviolet polarized light gradient additive manufacturing method have the advantages of fast curing speed, low required curing temperature, greatly reduced curing time and environmental protection. The manufacturing method has the advantages of high automation degree and simple operation, and has a low failure probability.

Description

Self-lubricating structure and manufacturing method of tilting pad surface of radial sliding bearing Technical Field

[0001] This invention belongs to the field of friction reduction and drag reduction technology, specifically relating to a self-lubricating structure and manufacturing method of a tilting pad surface of a radial sliding bearing. Background Technology

[0002] In tilting pad bearings, the tilting pads subjected to radial forces struggle to form a hydrodynamic oil film during startup or under low-speed, heavy-load conditions. This insufficient oil film capacity leads to severe wear. Current methods address this issue by modifying the lubricating oil, removing some materials to create a pitted surface texture, or filling the textured pits with thermosetting solid lubricating materials. For example, patent application CN202110632303.5, entitled "A Lubricating Oil Modifier and Modified Lubricating Oil," improves the low-temperature fluidity of high-viscosity lubricating oil, enabling it to achieve lower viscosity and excellent low-temperature fluidity, ensuring rapid oil delivery to lubrication points and reducing mechanical wear. However, additive agglomeration can hinder hydrodynamic oil film formation, and various anti-agglomeration methods increase costs. Another example is patent application CN201810229697.8, entitled "A Combined Gas Bearing with Surface Texture and a Surface Texture Design Method," which improves the surface texture of the bearing. Textured composite gas bearings improve load-bearing performance and service reliability. However, the pitted surface texture has weak hydrodynamic effect at low speeds, making it difficult to form a hydrodynamic oil film. Furthermore, the processing time is long, lacks repeatability, and is costly. Patent application CN202210967446.6, entitled "A self-lubricating composite coating for titanium alloy surface and its preparation method and application," describes a process where a porous titanium nitride coating is prepared on the surface of a titanium alloy substrate. A lubricating and binding phases are brushed onto the coating surface, and then cured by heating. After cooling, a self-lubricating composite coating is obtained, achieving high-speed, high-load, and long-term lubrication and wear resistance. However, the thermal curing process is energy-intensive and time-consuming. The low melting point of the tilting tile substrate makes this processing method unsuitable. Moreover, after the cured material is filled into the texture, the surface returns to a flat state, and the hydrodynamic effect cannot be improved at low speeds. Summary of the Invention

[0003] Purpose of the invention: The present invention provides a self-lubricating structure for the surface of a radial sliding bearing tilting pad, which adopts an ultraviolet polarized light gradient additive manufacturing method. It utilizes the polarization principle and electromagnetic effect of light to manufacture the self-lubricating structure, and has a fast curing rate and simple operation.

[0004] Technical solution: The present invention provides a self-lubricating structure for the surface of a radial sliding bearing tilting pad, comprising a body of a radial sliding bearing tilting pad that is curved in an arc and a plurality of self-lubricating units arranged in rows on the concave surface of the body. Each self-lubricating unit is a flat cylinder. Each row of flat cylinders is arranged along the direction parallel to the straight edge of the body and each row of flat cylinders has the same diameter. The diameter of each row of flat cylinders decreases from the outer side to the inner side along the curved edge of the body.

[0005] Preferably, there are 8 rows of flat cylinders arranged along the direction parallel to the straight edge of the bearing, with 8 cylinders in each row.

[0006] A method for UV-polarized light curing additive manufacturing of a self-lubricating structure on the surface of a radial sliding bearing tilting pad includes the following steps:

[0007] (1) Selection of the number of unit polarizing lenses and the spot size: Select the number of unit polarizing lenses to be installed on the unit lens fixture as needed, and adjust the spot size of the unit polarizing lenses;

[0008] (2) Spreading of self-lubricating material on the surface of the tilting tile to be processed: Select the tilting tile to be processed, apply an excessive amount of self-lubricating material to the inner surface of the main body arc and all self-lubricating units, adjust the height of the extrusion roller, and spread the self-lubricating material evenly on the inner surface of the main body arc and all self-lubricating unit surfaces through the reciprocating motion of the extrusion roller.

[0009] (3) Installation of the tilting tile to be processed and position adjustment of the polarizing lens: First, place the tilting tile to be processed on the bearing fixture, calculate the center position of the concave surface of the tilting tile to be processed, and make the center position coincide with the position of the ultraviolet lamp located above the tilting tile to be processed. Then adjust the polarizing lens to move to the processing position.

[0010] (4) Ultraviolet polarized light curing of self-lubricating materials: Using an ultraviolet lamp that can emit polarized light, the polarized light emitted by the ultraviolet lamp passes through the selected unit polarization lens and irradiates the self-lubricating material on the tilting tile surface, and the self-lubricating material is cured by irradiation.

[0011] (5) Removal of uncured material: After curing, the tilting tile is placed in a solvent and the uncured self-lubricating material is removed by ultrasonic oscillation.

[0012] Preferably, in step (1), the unit polarizing lens is composed of four cylindrical lenses nested one after another, and a permanent magnet is fixed on the side of each cylindrical lens; the unit polarizing lens is placed in a circular trapezoidal hole, and a fan-shaped groove is provided on the side of the circular trapezoidal hole; the electromagnetic coils are evenly distributed along the vertical direction outside the fan-shaped groove of the circular trapezoidal hole.

[0013] Preferably, in step (1), the direction of the current is controlled to control the rotation direction of the polarizing lens, thereby changing the size of the polarizing lens spot.

[0014] Preferably, the self-lubricating material described in step (2) is spread on the surface of the tilting tile with a thickness of 2 to 5 mm.

[0015] Preferably, in step (3), the calculation of the center position of the inner surface of the tilting bearing to be processed is performed on a curved bearing with the inner and outer curved surfaces concentric. After positioning, the adjustable roller radius r, the roller center distance d, and the outer radius R of the curved bearing are determined, and the center position D of the inner circle of the curved bearing is uniquely determined by calculation.

[0016] d 2 +D 2 =(R+r) 2

[0017] Where r is the roller radius, R is the outer radius of the curved bearing, and D is the position of the center of the inner circle of the curved bearing.

[0018] Preferably, the intensity of the ultraviolet light in step (4) is 1000-1200mW / cm2, the wavelength range is 315-400nm, and the curing time is 10-30s.

[0019] Preferably, the ultrasonic oscillation time in step (5) is 200-400s.

[0020] Preferably, the number of unit polarizing lenses is 8 groups.

[0021] Beneficial effects: (1) The additive manufacturing method changes the traditional manufacturing method of filling solid lubricating materials into the texture to form a composite lubricating structure. No material removal is required, saving processing costs and facilitating remanufacturing;

[0022] (2) Using ultraviolet curing technology, the curing speed is relatively fast, the single processing time is controlled within 10-30s, the curing degree is high, the curing energy consumption is low, there are no volatile solvents in the curing material, making it more environmentally friendly, and the required curing temperature is low, making it suitable for tilting tiles that are not resistant to high temperatures, preventing damage to the substrate.

[0023] (3) By utilizing the electromagnetic effect, the induced magnetic field is changed by controlling the direction of the current, thereby controlling the permanent magnet to pull the lens to rotate to the work position, which greatly reduces the size of the instrument, has a high degree of modularity and automation, is simple to operate, and has a low failure rate.

[0024] (4) By utilizing the principle of light polarization, a light spot with a clear boundary can be obtained, thereby obtaining a clear texture boundary. The processing accuracy is high, and the size of the light spot is directly determined by the diameter of the polarizing lens, so the processing size is small. Attached Figure Description

[0025] Figure 1 shows a schematic diagram of the application of self-lubricating material on the surface of a tilting tile;

[0026] Figure 2 is a schematic diagram of the assembly of the processing instrument;

[0027] Figure 3 is a schematic diagram of the completed machining of the curved bearing bush;

[0028] Figure 4 is a partial assembly diagram of the unit lens group;

[0029] Figure 5 is a schematic diagram of the electromagnetic drive corner mechanism;

[0030] Figure 6 is a schematic diagram of the working principle of a polarizing lens;

[0031] Figure 7 is a schematic diagram of the positioning dimensions of the curved bearing bush. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to specific embodiments and corresponding figures 1-7. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0033] A self-lubricating structure for the tilting pad surface of a radial sliding bearing, wherein each self-lubricating structure is a flat cylinder arranged in a direction parallel to the straight edge of the bearing pad, and the cylinder diameter decreases from the outside to the inside along the curved edge of the bearing pad.

[0034] In the machining process of the radial bearing shell of the tilting pad bearing, there are a total of 8 groups of flat cylindrical bodies arranged along the direction parallel to the straight edge of the bearing shell, with 8 bodies in each group (as shown in Figure 3).

[0035] The fan-shaped angle between the axis of the first set of cylinders 3-1 and the edge of the bearing bush is 10°, their diameters are all 20mm, and their axial spacing is all 30mm.

[0036] The fan-shaped angle between the axis of the second set of cylinders 3-2 and the edge of the bearing bush is 18°, their diameters are all 20mm, and their axial spacing is all 30mm.

[0037] The fan-shaped angle between the axis of the third group of cylinders 3-3 and the edge of the bearing bush is 26°, their diameters are all 15mm, and their axial spacing is all 30mm.

[0038] The sector angle between the axis of the fourth group of cylinders 3-4 and the edge of the bearing bush is 33°, their diameters are all 15mm, and their axial spacing is all 30mm.

[0039] The fan-shaped angle between the axis of the fifth group of cylinders 3-5 and the edge of the bearing bush is 40°, and their diameters are all 10mm, with an axial spacing of 30mm.

[0040] The fan-shaped angle between the axis of the sixth group of cylinders 3-6 and the edge of the bearing bush is 46°, their diameters are all 10mm, and their axial spacing is all 30mm.

[0041] The fan-shaped angle between the axis of the seventh group of cylinders 3-7 and the edge of the bearing bush is 52°, their diameters are all 5mm, and their axial spacing is all 30mm.

[0042] The fan-shaped angle between the axis of the eighth group of cylinders 3-8 and the edge of the bearing is 57°, and their diameters are all 5mm. The axial spacing of the structure is 30mm.

[0043] A method for manufacturing a self-lubricating structure on the surface of a tilting pad of a radial sliding bearing (as shown in Figure 2) includes the following steps:

[0044] (1) Selection of the number of unit polarizing lenses and the spot size: Select the number of unit polarizing lenses 2-4 installed on the unit lens fixture 2-5 as needed, and adjust the spot size of the unit polarizing lenses 2-4;

[0045] (2) Spreading of self-lubricating material on the surface of tilting tile: Select the tilting tile 1-3 to be processed, apply an excess of self-lubricating material 1-2 to the inner surface of the tilting tile, adjust the height of the extrusion roller 1-1, and spread the self-lubricating material 1-2 evenly on the surface of the tilting tile through the reciprocating motion of the extrusion roller 1-1.

[0046] (3) Installation of the tilting tile to be processed and adjustment of the length of the clamping arm: First, place the tilting tile 1-3 to be processed on the adjustable roller 2-7 of the bearing clamp, calculate the center position of the inner surface of the tilting tile to be processed, and make it coincide with the position of the ultraviolet lamp 2-2, that is, coincide with the rotation center of the clamping arm 2-3. Adjust the distance of the roller 2-7 symmetrically according to the calculation result. After completing the positioning, clamp the tilting tile 1-3 to be processed. Then adjust the length of the clamping arm 2-3 and rotate the clamping arm 2-3 to move the polarizing lens to the processing position (as shown in Figure 7).

[0047] (4) Ultraviolet polarized light curing of self-lubricating materials: Using an ultraviolet lamp 2-2, the polarized light emitted by the lamp passes through the selected unit polarization lens and irradiates the self-lubricating material on the surface of the tilting tile. The self-lubricating material in the selected area is cured by irradiation.

[0048] (5) Removal of uncured material: After curing, the finished tilting tile 2-6 is placed in an alcohol solution and the uncured self-lubricating material is removed by ultrasonic oscillation.

[0049] The number of unit polarizing lenses installed on the unit lens fixture in step (1) is 1 to 50 sets, which can be flexibly adjusted according to the specific shape of the texture in each step. In the machining process of the radial bearing of the tilting pad sliding bearing, the number of unit polarizing lenses selected is 8 sets (as shown in Figure 4).

[0050] The spot size of the unit polarizing lens in step (1) can be selected in a variety of ways. The spot size can be changed by controlling the direction of the current to control the rotation direction of the polarizing lens.

[0051] When polarized light enters a single-unit polarizing lens, the intensity of the transmitted light changes as the lens is rotated. This is because the angle between the vibration direction of the polarized light and the polarization direction of the single-unit polarizing lens changes, causing the component of the polarized light parallel to the polarization direction to change accordingly. The transmitted light is strongest when the vibration direction of the polarized light is parallel to the polarization direction, and dimmest when it is perpendicular.

[0052] As shown in Figure 5, when a positive current passes through the electromagnetic coil of the lens corner, the electromagnetic field generated by it acts on the permanent magnet on the side of the corresponding cylindrical lens frustum, causing it to rotate clockwise to the 90° limit point 5-1. At this time, the polarization direction of the polarization lens at the working end of the lower half of the cylindrical lens is perpendicular to the vibration direction of the polarized light generated by the ultraviolet lamp, completely blocking the polarized light. A dark spot appears below the lens, and this position is called the light-blocking position.

[0053] When a reverse current passes through the electromagnetic coil of the lens, the electromagnetic field generated therein acts on the permanent magnet on the side of the corresponding cylindrical lens frustum, causing it to rotate counterclockwise to the 0° limit point 5-2. At this time, the polarization direction of the polarizing lens at the working end of the lower half of the cylindrical lens is parallel to the vibration direction of the polarized light generated by the ultraviolet lamp. The polarized light passes completely through the lens, and a bright spot appears below the lens. This position is called the light-transmitting position.

[0054] Each set of lens corner electromagnetic coils corresponds one-to-one with the cylindrical lens, and the principle is the same;

[0055] The size of the light spot is related to the number of cylindrical lenses in the light-blocking position; the fewer cylindrical lenses in the light-blocking position, the larger the light spot.

[0056] During the machining process of the radial bearing shell of the tilting pad sliding bearing (as shown in Figure 6):

[0057] In the first and second processing areas, the first, second, third and fourth cylindrical lenses of each group of unit polarizing lenses are all located in the light-transmitting position. At this time, the size of the bright spot below each group of lenses is 20mm, as shown in Figure 6a.

[0058] In the third and fourth processing areas, the first, second and third cylindrical lenses of each group of unit polarizing lenses are all in the light-transmitting position, and the fourth cylindrical lens is in the light-blocking position. At this time, the size of the bright spot below each group of lenses is 15mm, as shown in Figure 6b.

[0059] In the fifth and sixth processing areas, the first and second-order cylindrical lenses of each group of unit polarizing lenses are in the light-transmitting position, and the third and fourth-order cylindrical lenses are in the light-blocking position. At this time, the size of the bright spot below each group of lenses is 10mm, as shown in Figure 6c.

[0060] In the seventh and eighth processing areas, the first-stage cylindrical lens of each group of unit polarizing lenses is in the light-transmitting position, and the second, third and fourth-stage cylindrical lenses are in the light-blocking position. At this time, the size of the bright spot below each group of lenses is 5mm, as shown in Figure 6d.

[0061] Example 1: Self-lubricating complex texture of radial bearing shell of tilting pad bearing and its UV polarization light curing additive manufacturing method

[0062] The self-lubricating complex texture of the radial bearing shell of a tilting pad bearing and its ultraviolet polarized light curing additive manufacturing method are described below:

[0063] (1) Selection of the number of unit polarizing lenses: Select 8 sets of unit polarizing lenses and install them at equal intervals on the unit lens fixture;

[0064] (2) Spreading of self-lubricating material on the surface of tilting tile: Select the tilting tile to be processed, apply an excessive amount of self-lubricating material to the inner surface of the tilting tile, adjust the height of the extrusion roller, and spread the self-lubricating material evenly on the surface of the tilting tile through the reciprocating motion of the roller. The thickness of the spread material is 3mm.

[0065] (3) Installation of the tilting pad to be processed and adjustment of the length of the clamping rocker arm: First, place the tilting pad to be processed on the adjustable roller of the bearing clamp. It is known that the roller radius r is 20mm, the outer radius R of the curved bearing is 220mm, and the inner center position D of the curved bearing is 200mm. The roller center distance d can be calculated to be 13.27mm. Adjust the roller spacing symmetrically according to the calculation results. After positioning, clamp the tilting pad to be processed. Then adjust the length of the clamping rocker arm to 110mm to prevent the lower end of the clamping rocker arm from interfering with the curved bearing to be processed.

[0066] (4) Selection of the spot size of the first processing area, adjustment of the processing area and curing of the self-lubricating material with ultraviolet polarized light: First, rotate the jig rocker arm to the left edge of the curved surface bearing to be processed, then rotate it counterclockwise by 10° and fix it, so that the first, second, third and fourth cylindrical lenses of each unit polarizing lens are all in the light-transmitting position. Then, use an ultraviolet light emitter that can emit polarized light to make the emitted polarized light pass through the selected polarizing light lens and irradiate the self-lubricating material on the surface of the tiltable tile. At this time, the size of the bright spot under each lens is 20mm. The self-lubricating material at the bright spot is cured by irradiation for 20s.

[0067] (5) Selection of the spot size of the second processing area, adjustment of the processing area and curing of the self-lubricating material with ultraviolet polarized light: Loosen the clamping rocker arm of the current station, rotate it counterclockwise by 8° and fix it, so that the first, second, third and fourth cylindrical lenses of each unit polarizing lens are all in the light-transmitting position. Then use an ultraviolet light emitter that can emit polarized light to make the emitted polarized light pass through the selected polarizing light lens and irradiate the self-lubricating material on the tiltable tile surface. At this time, the size of the bright spot below each lens is 20mm. The self-lubricating material at the bright spot is cured by irradiation for 20s.

[0068] (6) Selection of light spot size in the third processing area, adjustment of processing area and ultraviolet polarized light curing of self-lubricating material: Loosen the clamp rocker arm of the current station, rotate it counterclockwise by 8° and fix it, so that the first, second and third cylindrical lenses of each unit polarization lens are in the light-transmitting position and the fourth cylindrical lens is in the light-blocking position. Then use an ultraviolet light emitter that can emit polarized light to make the emitted polarized light pass through the selected polarization lens and irradiate the self-lubricating material on the tiltable tile surface. At this time, the size of the bright spot under each lens is 15mm. The self-lubricating material at the bright spot is cured by irradiation for 20s.

[0069] (7) Selection of the spot size of the fourth processing area, adjustment of the processing area and ultraviolet polarization curing of the self-lubricating material: Loosen the clamping rocker arm of the current station, rotate it counterclockwise by 7° and fix it, so that the first, second and third cylindrical lenses of each unit polarization lens are in the light-transmitting position and the fourth cylindrical lens is in the light-blocking position. Then use an ultraviolet light emitter that can emit polarized light to make the emitted polarized light pass through the selected polarization lens and irradiate the self-lubricating material on the tiltable tile surface. At this time, the size of the bright spot under each lens is 15mm. The self-lubricating material at the bright spot is cured by irradiation for 20s.

[0070] (8) Selection of the spot size in the fifth processing area, adjustment of the processing area and curing of the self-lubricating material with ultraviolet polarized light: Loosen the clamping rocker arm of the current station, rotate it counterclockwise by 7° and fix it, so that the first and second cylindrical lenses of each unit polarization lens are in the light-transmitting position, and the third and fourth cylindrical lenses are in the light-blocking position. Then use an ultraviolet light emitter that can emit polarized light to make the emitted polarized light pass through the selected polarization lens and irradiate the self-lubricating material on the tiltable tile surface. At this time, the size of the bright spot under each lens is 10mm. The self-lubricating material at the bright spot is cured by irradiation for 20s.

[0071] (9) Selection of the spot size of the sixth processing area, adjustment of the processing area and ultraviolet polarized light curing of the self-lubricating material: Loosen the clamping rocker arm of the current station, then rotate it counterclockwise by 6° and fix it, so that the first and second cylindrical lenses of each unit polarization lens are in the light-transmitting position, and the third and fourth cylindrical lenses are in the light-blocking position. Then use an ultraviolet light emitter that can emit polarized light to make the emitted polarized light pass through the selected polarization lens and irradiate the self-lubricating material on the tiltable tile surface. At this time, the size of the bright spot under each lens is 10mm. The self-lubricating material at the bright spot is cured by irradiation for 20s.

[0072] (10) Selection of the spot size of the seventh processing area, adjustment of the processing area and ultraviolet polarization curing of the self-lubricating material: Loosen the clamp rocker arm of the current station, rotate it counterclockwise by 6° and fix it, so that the first cylindrical lens of each unit polarization lens is in the light-transmitting position, and the second, third and fourth cylindrical lenses are in the light-blocking position. Then use an ultraviolet emitter that can emit polarized light to make the emitted polarized light pass through the selected polarization lens and irradiate the self-lubricating material on the tiltable tile surface. At this time, the size of the bright spot under each lens is 5mm. The self-lubricating material at the bright spot is cured by irradiation for 20s.

[0073] (11) Selection of the spot size of the processing area in the eighth column, adjustment of the processing area and ultraviolet polarization curing of the self-lubricating material: Loosen the clamping rocker arm of the current station, rotate it counterclockwise by 5° and fix it, so that the first-stage cylindrical lens of each unit polarization lens is in the light-transmitting position, and the second, third and fourth-stage cylindrical lenses are in the light-blocking position. Then use an ultraviolet light emitter that can emit polarized light to make the emitted polarized light pass through the selected polarization lens and irradiate the self-lubricating material on the tiltable tile surface. At this time, the size of the bright spot under each lens is 5mm. The self-lubricating material at the bright spot is cured by irradiation for 20s.

[0074] (12) Removal of uncured material: After processing, the tilting tile is placed in an alcohol solution and the uncured self-lubricating material is removed by ultrasonic oscillation for 300s.

Claims

1. A method for ultraviolet polarized light curing additive manufacturing of a self-lubricating structure on the surface of a radial sliding bearing tilting pad, characterized in that, A self-lubricating structure for a radial sliding bearing tilting pad includes a body of a radial sliding bearing tilting pad that is curved in an arc and several self-lubricating units arranged in rows on the concave surface of the body. Each self-lubricating unit is a flat cylinder. Each row of flat cylinders is arranged parallel to the straight edge of the body and each row of flat cylinders has the same diameter. The diameter of each row of flat cylinders decreases from the outside to the inside along the curved edge of the body. The ultraviolet polarized light curing additive manufacturing method includes the following steps: (1) Selection of the number of unit polarizing lenses and the spot size: Select the number of unit polarizing lenses (2-4) installed on the unit lens fixture (2-5) as needed, and adjust the spot size of the unit polarizing lenses (2-4); (2) Spreading of self-lubricating material on the surface of the tilting pad to be processed: Select the tilting pad to be processed (1-3), apply excess self-lubricating material (1-2) to the inner surface of the main body and all self-lubricating units, and adjust the extrusion roller (1-1 (3) Installation of the tilting tile to be processed and adjustment of the position of the polarizing lens: First, place the tilting tile to be processed (1-3) on the bearing fixture, calculate the center position of the concave surface of the tilting tile to be processed (1-3), and make the center position coincide with the position of the ultraviolet lamp (2-2) located above the tilting tile to be processed. Then adjust the polarizing lens (2-4) to move to the processing position. (4) Ultraviolet polarization curing of self-lubricating material: Use an ultraviolet lamp (2-2) that can emit polarized light, so that the polarized light emitted by the ultraviolet lamp (2-2) passes through the selected unit polarizing lens (2-4) to irradiate the self-lubricating material on the surface of the tilting tile. The self-lubricating material is cured by irradiation. (5) Removal of uncured material: After curing, place the tilting tile in the solvent and use ultrasonic vibration to remove the uncured self-lubricating material.

2. The self-lubricating structure of the tilting pad surface of the radial sliding bearing according to claim 1, characterized in that, The flat cylindrical bodies are arranged in 8 rows along the direction parallel to the straight edge of the bearing, with 8 in each row.

3. The ultraviolet polarized light curing additive manufacturing method for the self-lubricating structure of the tilting pad surface of the radial sliding bearing according to claim 1, characterized in that, In step (1), the unit polarizing lens (2-4) is composed of four cylindrical lenses nested one after another, and a permanent magnet (4-2) is fixed on the side of each cylindrical lens; the unit polarizing lens (2-4) is placed in a circular stepped hole, and a fan-shaped groove (4-1) is provided on the side of the circular stepped hole; the electromagnetic coil (4-3) is evenly distributed in the vertical direction on the outside of the fan-shaped groove (4-1) of the circular stepped hole.

4. The ultraviolet polarized light curing additive manufacturing method for the self-lubricating structure of the tilting pad surface of the radial sliding bearing according to claim 3, characterized in that, In step (1), the direction of the current is controlled to control the rotation direction of the polarizing lens, thereby changing the size of the polarizing lens spot.

5. The ultraviolet polarized light curing additive manufacturing method for the self-lubricating structure of the tilting pad surface of the radial sliding bearing according to claim 1, characterized in that, The self-lubricating material described in step (2) is spread on the surface of the tilting tile, and the thickness of the spread material is 2~5mm.

6. The ultraviolet polarized light curing additive manufacturing method for the self-lubricating structure of the tilting pad surface of the radial sliding bearing according to claim 1, characterized in that, In step (3), the calculation of the center position of the inner surface of the tilting bearing to be processed is performed. For the curved bearing with the inner and outer curved surfaces concentric, after positioning, the radius r of the adjustable roller (2-7), the center distance d of the adjustable roller, and the outer radius R of the curved bearing are determined. Then, the center position D of the inner circle of the curved bearing is uniquely determined by calculation: where r is the radius of the adjustable roller, R is the outer radius of the curved bearing, and D is the center position of the inner circle of the curved bearing.

7. The ultraviolet polarized light curing additive manufacturing method for the self-lubricating structure of the tilting pad surface of the radial sliding bearing according to claim 1, characterized in that, The intensity of the ultraviolet light in step (4) is 1000~1200mW / cm2, the wavelength range is 315~400nm, and the curing time is 10~30s.

8. The ultraviolet polarized light curing additive manufacturing method for the self-lubricating structure of the tilting pad surface of the radial sliding bearing according to claim 1, characterized in that, The ultrasonic oscillation time in step (5) is 200~400s.

9. The ultraviolet polarized light curing additive manufacturing method for the self-lubricating structure of the tilting pad surface of the radial sliding bearing according to claim 3, characterized in that, The number of the unit polarizing lenses (2-4) is 8.

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