Self-lubricating bearing support device for air turbine starter

Abstract

The utility model discloses a kind of self-lubricating type bearing support devices for air turbine starter, including starter shell, the cover plate inner wall middle is equipped with installation slot, and installation slot inner wall is inserted and is connected with installation plug. The self-lubricating type bearing support device for air turbine starter of this kind can be independently disassembled by thread mounting block, thread installation slot with fixed disc and support disc, and the solid lubricating block is independently adhered and inserted and disassembled quickly by adhering block and splicing slot, and sealing gasket can be independently disassembled by installation slot and installation plug, it is convenient to replace quickly, and solid lubricating block and outer ring, inner ring can be driven by supporting spring, three-section telescopic rod and rub lubrication, effect is better, and it can be assisted self-lubrication by retainer, and it can be efficiently sealed by sealing ring, sealing groove and sealing gasket, prevent lubricating debris from polluting internal components, also isolate external impurities, reduce bearing failure probability.

Description

Technical Field

[0001] This utility model relates to the field of air turbine starter technology, specifically to a self-lubricating bearing support device for an air turbine starter. Background Technology

[0002] As a key starting component in aviation, energy and other fields, the air turbine starter's internal bearing support device must operate stably under harsh conditions of high-speed rotation (typically 10,000-30,000 r / min) and high temperature (ambient temperature -40℃-120℃).

[0003] A self-lubricating, overheat-resistant bearing housing (CN202020937900.X) has been developed, which adds a lubrication component to enable the bearing housing to self-lubricate. It also includes a limiting component to save lubricating oil and a heat dissipation component to accelerate heat dissipation from the bearing housing and bearing, preventing overheating and improving work efficiency to some extent. However, it has shortcomings: the existing equipment components cannot be quickly and independently disassembled and assembled, and the lubrication and sealing effects are poor, resulting in unsatisfactory performance. Therefore, a self-lubricating bearing support device for air turbine starters is needed to solve these problems. Utility Model Content

[0004] The purpose of this utility model is to provide a self-lubricating bearing support device for an air turbine starter, so as to solve the problems mentioned in the background art that the self-lubricating and overheat-proof bearing seat components cannot be quickly and independently disassembled and assembled, and that the lubrication effect is poor, the sealing effect is poor, and the use effect is poor.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-lubricating bearing support device for an air turbine starter, comprising a starter housing, a support seat inserted into the inner wall of the starter housing, and a limiting protrusion fixedly connected to the outer side of the support seat; a positioning rod fixedly connected to the side edge of the inner wall of the starter housing, and the positioning rod inserted into the limiting protrusion; a lubrication cavity is formed on one side of the inner wall of the starter housing, and a bearing mounting groove is formed on the other side of the inner wall of the starter housing, the bearing mounting groove communicating with the lubrication cavity; a threaded mounting groove is formed at the middle position of one end of the inner wall of the lubrication cavity; a threaded mounting block is inserted into the inner wall of the threaded mounting groove, and a support plate is fixedly connected to the other end of the threaded mounting block; three telescopic rods are vertically fixedly connected to the other edge of the support plate; support springs are sleeved on the outer sides of the three telescopic rods, and the support springs and the other ends of the three telescopic rods are fixedly connected... A fixed plate is fixedly connected to the bearing. A splicing slot is provided on the other edge of the fixed plate, and an adhesive block is fixedly connected to the inner wall of the splicing slot. A solid lubricating block is fixedly connected to the other end of the adhesive block. An outer ring is inserted into the inner wall of the bearing mounting groove, and an inner ring is inserted into the inner wall of the outer ring. A cage is fixedly connected to the outer side of the inner ring, and a ball is rolledly embedded in the inner wall of the cage. The ball is rolledly connected to the inner wall of the outer ring. A sealing groove is provided on one edge of the support base, and a sealing ring is inserted into the inner wall of the sealing groove. A cover plate is fixedly connected to the other end of the sealing ring, and a fixing bolt is inserted into the cover plate, the sealing ring, and the inner wall of the support base. An installation slot is provided in the middle of the inner wall of the cover plate, and an installation block is inserted into the inner wall of the installation slot. A fixing ring is fixedly connected between the installation blocks, and a sealing gasket is fixedly connected to the inner side of the fixing ring. A rotating shaft is inserted into the sealing gasket and the inner side of the inner ring.

[0006] Preferably, the support base is connected to the starter housing in a positioning and insertion manner within the limiting protrusion by a positioning rod.

[0007] Preferably, the solid lubricating block is connected to the outer and inner rings by a support spring, a three-section telescopic rod, and a compression support. The solid lubricating block is also connected to the fixed plate by an adhesive block and a splicing slot. The solid lubricating block is a graphite-molybdenum disulfide composite lubricating material.

[0008] Preferably, the outer ring and inner ring are connected to the support seat by a bearing mounting groove in an interlocking manner, and the outer ring and inner ring are installed with the support seat by a cover plate and fixing bolts in a bolt-limited cover manner. The cage is made of modified polytetrafluoroethylene material.

[0009] Preferably, the fixed disk and the support disk are connected to the lubrication cavity by a threaded mounting block and a threaded mounting groove.

[0010] Preferably, the cover plate is sealed to the support and the rotating shaft by a sealing ring in the sealing groove and a sealing gasket, and the sealing gasket is connected to the cover plate by a limiting insertion splicing by a mounting slot and a mounting block.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This self-lubricating bearing support device for an air turbine starter can independently disassemble and assemble the fixed plate and the support plate through threaded mounting blocks and threaded mounting grooves. Moreover, the adhesive blocks and splicing slots facilitate the quick and independent adhesion, insertion, disassembly, and assembly of the solid lubricating blocks. Furthermore, the sealing gasket can be independently disassembled and assembled through the mounting slots and mounting blocks, facilitating quick replacement. In addition, the solid lubricating blocks can be driven to rub against the outer and inner rings through the support springs and three-section telescopic rods, resulting in better lubrication. Moreover, the cage can assist in self-lubrication, and the sealing rings, sealing grooves, and sealing gaskets can achieve efficient sealing, preventing lubricating debris from contaminating internal components and isolating external impurities, thereby reducing the probability of bearing failure. Attached Figure Description

[0012] Figure 1 This is a front view of a self-lubricating bearing support device for an air turbine starter according to the present invention. Figure 2 This is a schematic diagram of the internal structure of a self-lubricating bearing support device for an air turbine starter according to the present invention. Figure 3 This utility model relates to a self-lubricating bearing support device for an air turbine starter. Figure 2 Enlarged view of point A in the middle; Figure 4 This utility model relates to a self-lubricating bearing support device for an air turbine starter. Figure 2 Enlarged view at point B in the middle; Figure 5 This utility model relates to a self-lubricating bearing support device for an air turbine starter. Figure 2 Enlarged view at point C; Figure 6 This utility model relates to a self-lubricating bearing support device for an air turbine starter. Figure 2 Enlarged view of point D in the middle.

[0013] In the diagram: 1. Starter housing, 2. Support base, 3. Solid lubricant block, 4. Shaft, 5. Ball, 6. Cage, 7. Outer ring, 8. Inner ring, 9. Fixed plate, 10. Lubrication chamber, 11. Support spring, 12. Three-section telescopic rod, 13. Support plate, 14. Threaded mounting block, 15. Threaded mounting groove, 16. Adhesive block, 17. Sealing ring, 18. Cover plate, 19. Sealing groove, 20. Fixing bolt, 21. Limiting protrusion, 22. Positioning rod, 23. Mounting slot, 24. Sealing gasket, 25. Fixing ring, 26. Mounting block, 27. Bearing mounting groove, 28. Splicing slot. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-6This utility model provides a technical solution: a self-lubricating bearing support device for an air turbine starter, comprising a starter housing 1, a support base 2, a solid lubricating block 3, a rotating shaft 4, a ball 5, a cage 6, an outer ring 7, an inner ring 8, a fixed plate 9, a lubrication cavity 10, a support spring 11, a three-section telescopic rod 12, a support plate 13, a threaded mounting block 14, a threaded mounting groove 15, an adhesive block 16, a sealing ring 17, a cover plate 18, a sealing groove 19, a fixing bolt 20, a limiting protrusion 21, a positioning insert 22, a mounting slot 23, a sealing gasket 24, a fixing ring 25, a mounting insert 26, a bearing mounting groove 27, and a splicing slot 28. The support base 2 is inserted into the inner wall of the starter housing 1, and the limiting protrusion 2 is fixedly connected to the outer side of the support base 2. 1. The support base 2 is connected to the starter housing 1 in a positioning and insertion manner within the limiting protrusion 21 via a positioning rod 22. This facilitates the positioning and insertion installation of the support base 2 with the starter housing 1, ensuring the overall coaxiality of the device. The positioning rod 22 is fixedly connected to the inner side edge of the starter housing 1, and the positioning rod 22 is inserted into the limiting protrusion 21. A lubrication cavity 10 is provided on one side of the inner wall of the starter housing 1, and a bearing mounting groove 27 is provided on the other side of the inner wall of the starter housing 1. The bearing mounting groove 27 is connected to the lubrication cavity 10. A threaded mounting groove 15 is provided at the middle position of one end of the inner wall of the lubrication cavity 10. A threaded mounting block 14 is inserted into the inner wall of the threaded mounting groove 15, and a support plate 13 is fixedly connected to the other end of the threaded mounting block 14. Three telescopic rods 12 are vertically fixedly connected to the other edge of the support plate 13. Support springs 11 are sleeved on the outer sides of the three telescopic rods 12. A fixed plate 9 is fixedly connected to the other end of the support springs 11 and the three telescopic rods 12. The fixed plate 9 and the support plate 13 are connected to the lubrication cavity 10 by threaded mounting blocks 14 and threaded mounting grooves 15. This makes it easy to screw and disassemble the fixed plate 9 and the support plate 13, and facilitates independent disassembly and replacement. A splicing slot 28 is opened on the other edge of the fixed plate 9. An adhesive block 16 is adhered and fixedly connected to the inner wall of the splicing slot 28. A solid lubricating block 3 is adhered and fixedly connected to the other end of the adhesive block 16. The solid lubricating block 3 is compressed and supported by the support springs 11, the three telescopic rods 12, the outer ring 7, and the inner ring 8. The solid lubricating block 3 is connected to the fixed disk 9 by the adhesive block 16 and the splicing slot 28. The solid lubricating block 3 is made of graphite-molybdenum disulfide composite lubricating material, which allows the solid lubricating block 3 to be used for extrusion friction lubrication and can be quickly inserted, bonded, disassembled and replaced. The outer ring 7 is inserted into the inner wall of the bearing mounting groove 27, and the inner ring 8 is inserted into the inner wall of the outer ring 7. The outer ring 7 and the inner ring 8 are connected to the support seat 2 by the bearing mounting groove 27. The outer ring 7 and the inner ring 8 are bolted and capped to the support seat 2 by the cover plate 18 and the fixing bolts 20. The cage 6 is made of modified polytetrafluoroethylene material, which makes it easy to cap and limit the installation of the outer ring 7 and the inner ring 8, and can also provide auxiliary self-lubrication through the cage 6.A retainer 6 is fixedly connected to the outer side of the inner ring 8, and a ball 5 is rolledly embedded in the inner wall of the retainer 6. The ball 5 is rolledly connected to the inner wall of the outer ring 7. A sealing groove 19 is opened at one edge of the support 2, and a sealing ring 17 is inserted into the inner wall of the sealing groove 19. A cover plate 18 is fixedly connected to the other end of the sealing ring 17, and a fixing bolt 20 is inserted into the cover plate 18, the sealing ring 17, and the inner wall of the support 2. The cover plate 18 is sealed to the support 2 and the rotating shaft 4 through the sealing ring 17 in the sealing groove 19 and the sealing gasket 24. The sealing gasket 24 is installed... The slot 23 and mounting block 26 are connected to the cover plate 18 in a limiting interlocking manner. This allows the cover plate 18 to achieve a double seal with the support 2 and the rotating shaft 4, preventing lubricating debris from contaminating internal components and isolating external impurities, thus reducing the probability of bearing failure. The cover plate 18 has a mounting slot 23 in the middle of its inner wall, and the mounting block 26 is interlocked with the inner wall of the mounting slot 23. A fixing ring 25 is fixedly connected between the mounting blocks 26, and a sealing gasket 24 is fixedly connected to the inner side of the fixing ring 25. The sealing gasket 24 and the inner side of the inner ring 8 are interlocked with the rotating shaft 4.

[0016] Working principle: When using this self-lubricating bearing support device for an air turbine starter, firstly, the ball 5, cage 6, outer ring 7, and inner ring 8 of the device are installed and limited by the bearing mounting groove 27 and the support seat 2. This allows the solid lubricating block 3 to be pressed and adhered to the connection between the outer ring 7 and the inner ring 8 by the support spring 11, the three-section telescopic rod 12, and the support seat 2. Then, the cover plate 18 is fixed to the support seat 2 by the sealing ring 17, the sealing groove 19, and the fixing bolt 20, thus limiting the installation of the outer ring 7. Finally, the rotating shaft 4 is inserted into the inner ring 8 and the sealing gasket 24. The device is sealed so that when the shaft 4 drives the inner ring 8 to rotate, the lubricating material of the solid lubricating block 3 can be transferred to the surface of the ball through frictional rotation with the solid lubricating block 3, forming a stable lubricating film. After long-term wear, the outer ring 7 and inner ring 8 can be removed, and then the solid lubricating block 3 can be disassembled and replaced through the adhesive block 16 and splicing slot 28. When the extrusion structure is damaged, it can be disassembled and replaced by screwing in the threaded mounting block 14 and threaded mounting groove 15. This is the usage process of the self-lubricating bearing support device for an air turbine starter.

[0017] It should be noted that this utility model is a self-lubricating bearing support device for an air turbine starter. All components are standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Furthermore, all electrical components mentioned above refer to power elements, electrical components, and the matching monitoring computer and power supply connected by wires. The specific connection method should refer to the working principle described above, where the electrical connection between each electrical component is completed in sequence. The detailed connection method is a well-known technology in the field.

[0018] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-lubricating bearing support device for an air turbine starter, comprising a starter housing (1), wherein a support seat (2) is inserted and connected to the inner wall of the starter housing (1), and a limiting protrusion (21) is fixedly connected to the outer side of the support seat (2), characterized in that: A positioning rod (22) is fixedly connected to the inner wall side edge of the starter housing (1), and the positioning rod (22) is engaged with the limiting protrusion (21). A lubrication cavity (10) is provided on one side of the inner wall of the starter housing (1), and a bearing mounting groove (27) is provided on the other side of the inner wall of the starter housing (1). The bearing mounting groove (27) is connected to the lubrication cavity (10), and a threaded mounting groove (15) is provided at the middle position of one end of the inner wall of the lubrication cavity (10). A threaded mounting block is engaged with the inner wall of the threaded mounting groove (15). (14), and the other end of the threaded mounting block (14) is fixedly connected to a support plate (13), and the other edge of the support plate (13) is vertically fixedly connected to three telescopic rods (12), the three telescopic rods (12) are fitted with support springs (11) on the outside, and the other end of the support springs (11) and the three telescopic rods (12) is fixedly connected to a fixing plate (9), the other edge of the fixing plate (9) is provided with a splicing slot (28), and the inner wall of the splicing slot (28) is glued and fixedly connected to an adhesive block (16), the adhesive block (16) is fixedly connected to the support springs (13) and the other edge of the support plate (13) is vertically connected to three telescopic rods (12), the other edge of the fixing plate (9) is provided with a splicing slot (28), and the inner wall of the splicing slot (28) is glued and fixedly connected to an adhesive block (16), the adhesive block (16) is fixedly connected to the support plate (13) and the other edge of the support plate (13) is vertically connected to three telescopic rods (12), ... 6) A solid lubricating block (3) is fixedly connected to the other end. An outer ring (7) is inserted into the inner wall of the bearing mounting groove (27), and an inner ring (8) is inserted into the inner wall of the outer ring (7). A cage (6) is fixedly connected to the outer side of the inner ring (8), and a ball (5) is rolled into the inner wall of the cage (6). The ball (5) is rolled into the inner wall of the outer ring (7). A sealing groove (19) is opened at one edge of the support seat (2), and a sealing ring (17) is inserted into the inner wall of the sealing groove (19). The sealing ring (17) is... 7) A cover plate (18) is fixedly connected to the other end, and a fixing bolt (20) is inserted into the inner wall of the cover plate (18), the sealing ring (17) and the support base (2). An installation slot (23) is opened in the middle of the inner wall of the cover plate (18), and an installation block (26) is inserted into the inner wall of the installation slot (23). A fixing ring (25) is fixedly connected between the installation blocks (26), and a sealing gasket (24) is fixedly connected to the inner side of the fixing ring (25). A rotating shaft (4) is inserted into the inner side of the sealing gasket (24) and the inner side of the inner ring (8).

2. The self-lubricating bearing support device for an air turbine starter according to claim 1, characterized in that: The support base (2) is connected to the starter housing (1) in a positioning and interlocking manner within the limiting protrusion (21) by a positioning rod (22).

3. The self-lubricating bearing support device for an air turbine starter according to claim 2, characterized in that: The solid lubricating block (3) is connected to the outer ring (7) and inner ring (8) by a support spring (11), a three-section telescopic rod (12), and the solid lubricating block (3) is connected to the fixed plate (9) by an adhesive block (16) and a splicing slot (28). The solid lubricating block (3) is a graphite-molybdenum disulfide composite lubricating material.

4. The self-lubricating bearing support device for an air turbine starter according to claim 3, characterized in that: The outer ring (7) and inner ring (8) are connected to the support base (2) by the bearing mounting groove (27) in an interlocking splice. The outer ring (7) and inner ring (8) are installed with the support base (2) by the cover plate (18) and the fixing bolt (20) in a bolt-limited cover fit. The retainer (6) is made of modified polytetrafluoroethylene material.

5. The self-lubricating bearing support device for an air turbine starter according to claim 4, characterized in that: The fixed disk (9) and the support disk (13) are connected to the lubrication cavity (10) by threaded mounting block (14) and threaded mounting groove (15).

6. The self-lubricating bearing support device for an air turbine starter according to claim 5, characterized in that: The cover plate (18) is sealed to the support base (2) and the rotating shaft (4) through the sealing ring (17) in the sealing groove (19) and the sealing gasket (24), and the sealing gasket (24) is connected to the cover plate (18) through the mounting slot (23) and the mounting plug (26) in a limited insertion splicing connection.

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