Machining device and machining method of radial tilting pad sliding bearing guide shoe

Abstract

The invention discloses a machining device for a guide shoe of a radial tilting pad sliding bearing, and belongs to the technical field of guide shoe machining devices, and the machining device is characterized by comprising a cutter for milling and a corresponding driving device, and further comprising a first clamp mechanism for fixing the guide shoe and enabling the inner side face of the guide shoe to face upwards, and a second clamp mechanism for fixing the guide shoe and enabling the inner side face of the guide shoe to face upwards; the second clamp mechanism is used for fixing the guide shoe and enabling the outer side surface of the guide shoe to face upwards; wherein the first clamp mechanism and the second clamp mechanism comprise bases, end seats, abutting seats, electromagnetic devices and adjusting seats, the electromagnetic devices are installed on the abutting seats, the abutting seats are arranged between the two end seats, the end seats and the abutting seats are installed on the adjusting seats, and the adjusting seats are movably installed on the bases. Adjusting and fixing can be conducted according to the size of the guide shoe, and machining of the guide shoe is facilitated.

Description

Technical Field

[0001] This application belongs to the technical field of guide tile processing equipment, and particularly relates to a processing equipment and processing method for radial tilting pad sliding bearing guide tiles. Background Technology

[0002] Radial tilting pad bearings are a type of hydrodynamic bearing among sliding bearings, consisting of multiple independent pads that can swing around a pivot point. These bearings feature high load-carrying capacity and high stability, suppressing oil film oscillation and adapting to shaft bending and misalignment conditions. They are mainly used in steam turbines, centrifugal compressors, aero engines, high-speed gearboxes, high-speed motors, and fans.

[0003] Current tilting pad bearings, when operating at high speeds and with small shaft diameters, suffer from problems due to the large volume of lubricating oil and the limited space between the guide pads. This prevents the hot oil from effectively dissipating, leading to excessive temperature rise in the pads and a high risk of bearing failure. To address this, a solution has been designed... Figure 1 The novel guide pad shown features a guiding structure at its oil outlet edge. When installed inside the bearing, this structure directs the hot, lubricated oil to mix with the cold oil. Because the newly developed guide pad structure differs from conventional structures, existing processing equipment for conventional radial tilting pad sliding bearing guide pads is not universally applicable. Therefore, a redesign of the processing method and equipment for the new guide pad structure is necessary. Improvements are required in this regard. Summary of the Invention

[0004] The purpose of this application is to address the aforementioned technical problems by providing a processing device for radially tiltable sliding bearing guide pads, which can be adjusted and fixed according to the guide pad size, thus facilitating the processing of the guide pads.

[0005] This application provides a machining device for the guide pad of a radially tilting pad sliding bearing, including a milling cutter and a corresponding drive device, and further comprising: The first clamping mechanism is used to fix the guide tile and make the inner side of the guide tile face upward; The second clamping mechanism is used to fix the guide tile and make the outer side of the guide tile face upward; The first clamping mechanism and the second clamping mechanism include a base, an end seat, an abutment seat, an electromagnetic device, and an adjusting seat. The electromagnetic device is installed on the abutment seat, and there are several abutment seats. The abutment seats are placed between two end seats, and the end seats and abutment seats are installed on the adjusting seat. The adjusting seat is movably installed on the base.

[0006] By placing the guide tile on the first clamping mechanism with its inner side facing upwards, an oil groove connecting the inner and outer sides of the guide tile is machined. The guide tile is then placed on the second clamping mechanism with its outer side facing upwards, for machining the guide surface on the guide tile. Two sets of second clamping mechanisms are used for the two guide surfaces. End seats are placed at both ends of the guide tile on the first and second clamping mechanisms, abutting against both ends of the guide tile to achieve positioning. When the guide tile is placed on the end seats, the abutting seat is adjusted to abut against the guide tile. Then, an electromagnetic device is used to fix the guide tile and the abutting seat relative to each other. The adjusting seat, mounted on the base, can be adjusted to facilitate adjustment of the machining position on the guide tile. The end seats and abutting seats, mounted on the adjusting seat, can be adjusted to accommodate different guide tile sizes.

[0007] Furthermore, the adjustment seat includes: The mounting shaft is installed and connected to the adjusting seat, and the mounting shaft is connected to the base via a bearing; The worm gear is mounted on the base. A worm gear, adapted to a worm, is mounted on a mounting shaft; The first drive motor is mounted and connected to the worm gear and is located at one end of the worm gear; The first handwheel is installed and connected to the worm gear and is located at the other end of the worm gear.

[0008] Furthermore, the mounting shaft includes: The first nut seat is installed on the mounting shaft; The first threaded rod is installed on the adjusting seat and is adapted to the first nut seat; The graduations are placed on the mounting shaft and the adjusting seat, respectively.

[0009] Furthermore, the mounting shaft also includes: The transmission rod is positioned between the two first threaded rods; The gears are separately mounted on the transmission rod and the first threaded rod and are correspondingly adapted to each other.

[0010] Furthermore, the end seat includes: The movable base is installed and connected to the end base; The second nut seat is installed on the movable seat; The second threaded rod is mounted on the adjusting seat and is adapted to the second nut seat. The second threaded rod has two threaded portions with opposite thread directions. The guide rod is mounted on the adjusting seat; The guide sleeve is installed on the movable base and is compatible with the guide rod.

[0011] Furthermore, the first clamping mechanism includes: The drive cylinder is positioned between the movable seat and the end seat within the first clamping mechanism; The movable seat and the end seat in the first clamping mechanism are hinged together.

[0012] Furthermore, the abutment seat includes: A push block is installed in the adjusting seat and placed at both ends of the abutment seat; the push block is provided with a sliding groove. The third nut seat is installed on the push block; The third threaded rod is adapted to the third nut seat and installed in the adjusting seat, and the third threaded rod has two threaded portions with opposite thread directions; The abutment seat is provided with a sliding part that is adapted to the slide groove.

[0013] This application also provides a processing method for a processing device for a radial tilting pad sliding bearing guide pad, the specific steps of which include: S1. Prepare a first clamping mechanism and two second clamping mechanisms. Adjust the end seat, abutment seat, and adjusting seat according to the size of the tile. Adjust the first clamping mechanism to the oil groove processing position, adjust one of the second clamping mechanisms to the processing position of one of the guide surfaces, and adjust the other second clamping mechanism to the processing position of the other guide surface. S2, the guide tile is placed sequentially on the first clamping mechanism and the second clamping mechanism for processing.

[0014] When the guide tile is placed on a first clamping mechanism and two second clamping mechanisms in sequence, oil grooves and corresponding guide surfaces at both ends of the guide tile are processed in sequence. By adjusting the first clamping mechanism and the second clamping mechanism according to the size of the guide tile, the guide tile of different sizes can be processed, thereby improving the adaptability of the guide tile processing device.

[0015] The beneficial effects of this application are: 1. The guide plate is machined on the first clamping mechanism to form an oil groove connecting the inner and outer sides of the guide plate, and the guide plate is machined on the outer side of the guide plate on the second clamping mechanism.

[0016] 2. Adjust the abutment seat to abut against the guide tile, and then use an electromagnetic device to electrostatically attract and fix the guide tile and the abutment seat relative to each other.

[0017] 3. The adjustment seat is mounted on the base and can be adjusted to facilitate the adjustment of the processing position on the guide plate.

[0018] 4. The end seat and abutment seat are installed on the adjustment seat and can be adjusted to accommodate different guide tile sizes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the guide tile in this application; Figure 2 This is a schematic diagram of the clamping mechanism of this application. Figure 1 ; Figure 3 This is a schematic diagram of the clamping mechanism of this application. Figure 2 ; Figure 4 This is a schematic diagram of the structure of the abutment seat in this application; Figure 5 This is a schematic diagram of the end seat of the first clamping mechanism in this application; In the attached figures, the following labels are used: 100, base; 200, end seat; 210, movable seat; 220, second nut seat; 230, second threaded rod; 240, guide rod; 250, guide sleeve; 260, drive cylinder; 300, abutment seat; 301, sliding part; 310, electromagnetic device; 320, push block; 321, slide groove; 330, third nut seat; 340, third threaded rod; 400, adjusting seat; 410, mounting shaft; 420, worm gear; 430, worm wheel; 440, first drive motor; 450, first handwheel; 460, first nut seat; 470, first threaded rod; 471, transmission rod; 472, gear. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0021] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0022] The embodiments of this application are described in detail below with reference to the accompanying drawings, through specific examples and application scenarios.

[0023] Example 1: like Figures 2-4As shown, this application embodiment provides a machining device for a radially tilting pad sliding bearing guide pad, including a milling cutter and a corresponding driving device, and further including: The first clamping mechanism is used to fix the guide tile and make the inner side of the guide tile face upward; The second clamping mechanism is used to fix the guide tile and make the outer side of the guide tile face upward; The first clamping mechanism and the second clamping mechanism include a base 100, an end seat 200, an abutment seat 300, an electromagnetic device 310, and an adjusting seat 400. The electromagnetic device 310 is mounted on the abutment seat 300. Several abutment seats 300 are provided. The abutment seats 300 are placed between two end seats 200. The end seats 200 and the abutment seats 300 are mounted on the adjusting seat 400. The adjusting seat 400 is movably mounted on the base 100.

[0024] By placing the guide tile on the first clamping mechanism with its inner side facing upward, it is used to process the oil groove connecting the inner and outer sides of the guide tile. The guide tile is placed on the second clamping mechanism with its outer side facing upward, and is used to process the guide surface on the guide tile. Two sets of second clamping mechanisms are used for the two guide surfaces. On the first clamping mechanism and the second clamping mechanism, end seats 200 are placed at both ends of the guide tile and abut against both ends of the guide tile to achieve positioning of the guide tile. When the guide tile is placed on the end seat 200, the abutment seat 300 is adjusted to abut against the guide tile. Then, the electromagnetic device 310 is used to electromagnetically attract and fix the guide tile and the abutment seat 300 relative to each other. The adjusting seat 400 is installed on the base 100 and can be adjusted to facilitate the adjustment of the processing position on the guide tile. The end seat 200 and the abutment seat 300 are installed on the adjusting seat 400 and can be adjusted to achieve adjustment for different guide tile sizes.

[0025] Example 2: like Figure 2 , Figure 3 As shown, this application embodiment provides a processing device for a radially tilting pad sliding bearing guide pad. In addition to the above-mentioned technical features, the adjusting seat 400 further includes: The mounting shaft 410 is installed and connected to the adjusting seat 400, and the mounting shaft 410 is connected to the base 100 through a bearing; Worm gear 420, mounted on base 100; Worm gear 430 is adapted to worm 420 and is mounted on mounting shaft 410; The first drive motor 440 is installed and connected to the worm gear 420 and is located at one end of the worm gear 420; The first handwheel 450 is installed and connected to the worm gear 420 and is located at the other end of the worm gear 420.

[0026] The mounting shaft 410 is mounted on the adjusting seat 400. The mounting shaft 410 and the base 100 are connected by bearings, allowing the adjusting seat 400 to rotate around the axis of the mounting shaft 410. The axis of the worm gear 430 is the same as the axis of the mounting shaft 410. The worm gear 430 is mounted on the mounting shaft 410 and cooperates with the worm 420. The worm 420 is axially connected to the base 100. By rotating the worm 420, the worm gear 430 rotates, driving the mounting shaft 410 and the adjusting seat 400 to rotate for adjustment. The worm 420 can be rotated and adjusted by the first drive motor 440 or the first handwheel 450, providing a variety of adjustment methods. By adjusting the adjusting seat 400, the guide plate is placed on the first clamping mechanism, and the axis of the oil groove can be machined to be perpendicular to the inner side of the guide plate, and the machined oil grooves are distributed near the end of the guide plate. The guide plate is placed on the second clamping mechanism, and the machined guide surface is parallel to the horizontal plane. The process of controlling the tool through horizontal machining of the guide surface is simpler than that of machining on an inclined plane, and a larger horizontal milling cutter can be used, which can improve the machining efficiency of the guide surface.

[0027] Furthermore, the mounting shaft 410 includes: The first nut seat 460 is installed on the mounting shaft 410; The first threaded rod 470 is mounted on the adjusting seat 400 and is adapted to the first nut seat 460; The scales are placed on the mounting shaft 410 and the adjusting seat 400, respectively.

[0028] The first nut seat 460 is connected to the mounting shaft 410 by bolts or other fasteners. The first threaded rod 470 is connected to the first nut seat 460 by a threaded pair. The first nut seat 460 and the first threaded rod 470 are used to adjust the relative position of the mounting shaft 410 and the adjusting seat 400, so that the axis of the mounting shaft 410 is the same as the axis of the corresponding clamped guide bearing. The corresponding scale is placed on the mounting shaft 410. When the adjusting seat 400 is adjusted by rotating the mounting shaft 410, the scale on the mounting shaft 410 can improve the accuracy of the adjustment rotation of the mounting shaft 410. When the first nut seat 460 is placed on the adjusting seat 400 and moves, the adjustment accuracy is improved by the corresponding scale. The end of the first threaded rod 470 has an internal hexagonal hole, which is convenient for the internal hexagonal wrench to rotate and adjust.

[0029] Furthermore, the mounting shaft 410 also includes: The transmission rod 471 is positioned between the two first threaded rods 470; Gear 472 is separately mounted on transmission rod 471 and first threaded rod 470 and is correspondingly adapted to each other.

[0030] The first threaded rods 470 corresponding to the two mounting shafts 410 on both sides of the adjusting seat 400 are connected by transmission rod 471 and gear 472, so that the two mounting shafts 410 can move and adjust simultaneously, further ensuring the accuracy of the adjusting seat 400 during adjustment.

[0031] Example 3: like Figure 2 As shown, this application embodiment provides a processing device for a radially tilting pad sliding bearing guide pad. In addition to the above-mentioned technical features, the end seat 200 further includes: The movable base 210 is installed and connected to the end base 200; The second nut seat 220 is mounted on the movable seat 210; The second threaded rod 230 is mounted on the adjusting seat 400. The second threaded rod 230 is adapted to the second nut seat 220. The second threaded rod 230 has two threaded portions with opposite thread directions. Guide rod 240 is mounted on adjustment seat 400; The guide sleeve 250 is mounted on the movable seat 210 and is adapted to the guide rod 240.

[0032] The movable seat 210 and the second nut seat 220 are connected by fasteners such as bolts. The second nut seat 220 and the second threaded rod 230 are connected by a threaded pair. The guide rod 240 and the guide sleeve 250 are connected by a sliding pair. The guide rod 240 is installed in the adjusting seat 400 by fasteners such as bolts. The guide sleeve 250 is installed on the movable seat 210 by fasteners such as bolts. The rotation of the second threaded rod 230 moves the second nut seat 220, the movable seat 210, and the end seat 200, thereby adjusting the position of the end seat 200. In the second clamping mechanism, the movable seat 210 and the end seat 200 are connected by fasteners such as bolts. The end of the second threaded rod 230 has an internal hexagonal hole, which facilitates the rotation and adjustment of the internal hexagonal wrench.

[0033] Example 4: like Figure 5 As shown, this application embodiment provides a processing device for a radially tilting pad sliding bearing guide pad. In addition to the above-mentioned technical features, the first clamping mechanism further includes: The drive cylinder 260 is positioned between the movable seat 210 and the end seat 200 within the first clamping mechanism; The movable seat 210 and the end seat 200 in the first clamping mechanism are hinged together.

[0034] In the first clamping mechanism, the end seat 200 and the end of the guide tile will have an inwardly snapped structure. By installing a drive cylinder 260 between the moving seat 210 and the end seat 200, when the guide tile is placed on the first clamping mechanism, the drive cylinder 260 controls the end seat 200 to move to achieve the positioning of the guide tile. After the processing is completed, the drive cylinder 260 controls the end seat 200 to move to release the positioning of the guide tile. The drive cylinder 260 can be a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder, etc.

[0035] Example 5: like Figure 4 As shown, this application embodiment provides a processing device for a radially tilting pad sliding bearing guide pad. In addition to the above-mentioned technical features, the abutment seat 300 further includes: A push block 320 is installed in the adjusting seat 400 and placed at both ends of the abutment seat 300. The push block 320 is provided with a sliding groove 321. The third nut seat 330 is mounted on the push block 320; The third threaded rod 340 is adapted to the third nut seat 330 and installed in the adjusting seat 400. The third threaded rod 340 has two threaded portions with opposite thread directions. The abutment seat 300 is provided with a sliding part 301 that is adapted to the slide groove 321.

[0036] The push block 320 and the third nut seat 330 are connected by fasteners. The third threaded rod 340 is movably installed in the adjusting seat 400. The third nut seat 330 and the third threaded rod 340 are connected by a threaded pair. The slide groove 321 and the sliding part 301 cooperate with each other. Their cross-section is T-shaped. The axis of the slide groove 321 forms an angle of 5-10° with the plane. The rotation of the third threaded rod 340 controls the movement of the third nut seat 330 and the push block 320, and pushes the abutment seat 300 to rise and fall in the direction of gravity. The sliding part 301 and the abutment seat 300 are connected by fasteners such as bolts. The end of the third threaded rod 340 has an internal hexagonal hole, which is convenient for the internal hexagonal wrench to rotate and adjust.

[0037] Example 6: This application also provides a processing method for a processing device for a radial tilting pad sliding bearing guide pad, the specific steps of which include: S1. Prepare a first clamping mechanism and two second clamping mechanisms. Adjust the end seat 200, abutment seat 300 and adjusting seat 400 according to the size of the tile. Adjust the first clamping mechanism to the oil groove processing position, adjust one of the second clamping mechanisms to the processing position of one of the guide surfaces, and adjust the other second clamping mechanism to the processing position of the other guide surface. S2, the guide tile is placed sequentially on the first clamping mechanism and the second clamping mechanism for processing.

[0038] When the guide tile is placed on a first clamping mechanism and two second clamping mechanisms in sequence, oil grooves and corresponding guide surfaces at both ends of the guide tile are processed in sequence. By adjusting the first clamping mechanism and the second clamping mechanism according to the size of the guide tile, the guide tile of different sizes can be processed, thereby improving the adaptability of the guide tile processing device.

[0039] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0040] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A machining device for a radially tilting pad sliding bearing guide pad, comprising a milling cutter and a corresponding drive device, characterized in that, Also includes: The first clamping mechanism is used to fix the guide tile and make the inner side of the guide tile face upward; The second clamping mechanism is used to fix the guide tile and make the outer side of the guide tile face upward; The first clamping mechanism and the second clamping mechanism include a base (100), an end seat (200), an abutment seat (300), an electromagnetic device (310), and an adjusting seat (400). The electromagnetic device (310) is installed on the abutment seat (300). There are several abutment seats (300). The abutment seat (300) is placed between two end seats (200). The end seats (200) and the abutment seats (300) are installed on the adjusting seat (400). The adjusting seat (400) is movably installed on the base (100).

2. The processing apparatus for the guide pad of a radially tilting sliding bearing according to claim 1, characterized in that, The adjusting seat (400) includes: The mounting shaft (410) is installed and connected to the adjusting seat (400), and the mounting shaft (410) is connected to the base (100) by a bearing; The worm gear (420) is mounted on the base (100); A worm gear (430) is adapted to a worm (420) and is mounted on a mounting shaft (410); The first drive motor (440) is installed and connected to the worm (420) and is located at one end of the worm (420); The first handwheel (450) is installed and connected to the worm (420) and placed at the other end of the worm (420).

3. The processing apparatus for the guide pad of a radially tilting sliding bearing according to claim 2, characterized in that, The mounting shaft (410) includes: The first nut seat (460) is installed on the mounting shaft (410); The first threaded rod (470) is mounted on the adjusting seat (400) and is adapted to the first nut seat (460); The scales are placed on the mounting shaft (410) and the adjusting seat (400), respectively.

4. The processing apparatus for the guide pad of a radially tilting sliding bearing according to claim 3, characterized in that, The mounting shaft (410) also includes: The transmission rod (471) is positioned between the two first threaded rods (470); The gear (472) is separately mounted on the transmission rod (471) and the first threaded rod (470) and is correspondingly adapted to each other.

5. The processing apparatus for the guide pad of a radially tilting sliding bearing according to claim 1, characterized in that, The end seat (200) includes: The movable base (210) is installed and connected to the end base (200); The second nut seat (220) is mounted on the movable seat (210); The second threaded rod (230) is mounted on the adjusting seat (400). The second threaded rod (230) is adapted to the second nut seat (220). The second threaded rod (230) has two threaded portions with opposite thread directions. The guide rod (240) is mounted on the adjusting seat (400); The guide sleeve (250) is mounted on the movable seat (210) and is adapted to the guide rod (240).

6. The processing apparatus for the guide pad of a radially tilting sliding bearing according to claim 5, characterized in that, The first clamping mechanism includes: The drive cylinder (260) is positioned between the movable seat (210) and the end seat (200) within the first clamping mechanism; The movable seat (210) and the end seat (200) in the first clamping mechanism are hinged together.

7. The processing apparatus for the guide pad of a radially tilting sliding bearing according to claim 1, characterized in that, The abutment (300) includes: A push block (320) is installed in the adjusting seat (400) and placed at both ends of the abutment seat (300). The push block (320) is provided with a sliding groove (321). The third nut seat (330) is mounted on the push block (320); The third threaded rod (340) is adapted to the third nut seat (330) and installed in the adjusting seat (400), the third threaded rod (340) having two threaded portions with opposite thread directions; The abutment (300) is provided with a sliding part (301) that is adapted to the slide (321).

8. A processing method for a processing apparatus suitable for the guide pad of a radially tilting pad sliding bearing as described in claim 1, characterized in that, The specific steps include: S1, prepare a first clamping mechanism and two second clamping mechanisms. Adjust the end seat (200), abutment seat (300), and adjustment seat (400) according to the size of the tile. Adjust the first clamping mechanism to the oil groove processing position, adjust one of the second clamping mechanisms to the processing position of one of the guide surfaces, and adjust the other second clamping mechanism to the processing position of the other guide surface. S2, the guide tile is placed sequentially on the first clamping mechanism and the second clamping mechanism for processing.

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