An assemblable aircraft engine bearing seat

Abstract

The utility model discloses an assembleable aircraft engine bearing seat, which belongs to the technical field of engine installation. An assembleable aircraft engine bearing seat, including a bearing seat body and a bearing body. In the assembleable aircraft engine bearing seat, the pressure ring is squeezed by the fixing ring and then moves with the fixing block, the ramp surface follows the movement of the fixing block and squeezes the ball, when the ball moves to match the ball groove, the ball is squeezed and contacts with the rotating groove, the pressure ring enters the interior of the sleeve ring and cooperates with each other, the second thread groove and the first thread groove cooperate with each other to form a threaded hole that matches the fixing screw, and by rotating the fixing screw, the fixing ring, the pressure ring and the sleeve ring are locked with each other, which solves the problem of inconvenience in replacing the bearing body on site, makes the replacement of the bearing body more time-saving and labor-saving, improves the disassembly and assembly speed of the bearing body, and thus improves the replacement efficiency of the bearing body.

Description

Technical Field

[0001] The utility model relates to the technical field of engine installation, and more specifically to an assembleable aerospace engine bearing seat. Background Art

[0002] The aircraft engine is the power unit of the aircraft and is known as the "heart" of the aircraft. It is not only the power source for the aircraft to fly, but also the core force that promotes the progress of aviation technology. The development and application of aircraft engines reflect the concentrated display of a country's industrial foundation, scientific and technological level and comprehensive national strength. The engine has a bearing seat, and the installation of the bearing seat and the bearing requires a bearing seat assembly tool.

[0003] Chinese patent application number CN202222552154.4 discloses a small aircraft engine front bearing seat installation tool, including: a rotor, a front bearing seat component, and an installation tool; wherein the installation tool includes: a base, a screw rod, a first pressing sleeve, and a rotating rod; the base is connected to the end of the screw rod; the first pressing sleeve is sleeved on the screw rod; the middle of the rotating rod has a threaded matching portion; the rotating rod matches with the screw through the threaded matching portion; during assembly, the rotor passes through the screw rod and is placed on the base, and the front bearing seat component passes through the screw rod, so that the bearing inner ring of the front bearing seat component matches with the front shaft of the rotor; the first pressing sleeve passes through the screw rod and matches with the bearing inner ring of the front bearing seat component; the rotating rod rotates and moves downward, so that the first pressing sleeve presses the bearing inner ring, so that the front bearing seat component falls evenly and slowly;

[0004] In the above technical solution, when the tool is pressed into the bearing, the ring is subjected to more uniform force, which reduces the risk of scratches and ball collisions caused by uneven force due to knocking. However, aircraft engines have a service life and need to be inspected regularly. In addition, the bearings and bearing seats may be damaged when working together. When the bearings installed on the aircraft engines are damaged, they need to be removed and replaced with new bearings. Although the inner ring of the bearing is subjected to more uniform force when pressed into the bearing in the above technical solution, the tool is suitable for use in factories. It is inconvenient to use the tool to replace bearings on site, which affects the disassembly and assembly speed of the bearings, and thus affects the efficiency of bearing replacement. Utility Model Content

[0005] The purpose of the utility model is to provide an assembleable aircraft engine bearing seat to solve the problems raised in the above background technology:

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The invention discloses an assembleable aircraft engine bearing seat, comprising a bearing seat body and a bearing body, wherein the bearing body is rotatably connected to the bearing seat body, a collar is provided at the bottom of the bearing body, a plurality of grooves are provided on the surface of the collar, and a ball matched therewith is movably connected inside any of the grooves, a pressure ring is slidably connected inside the collar, a fixing block having the same number of grooves as the inner side surface of the pressure ring is fixedly connected thereto, notches are provided on the surface of the fixing block, a ramp surface and a ball groove are respectively provided inside the notch, the ball groove matches the ball, a fixing ring is slidably connected inside the pressure ring, and a sliding column is provided between the fixing block and the collar.

[0008] By adopting the above technical solution, the pressure ring is squeezed by the fixing ring and moves with the fixing block, and the slope surface follows the movement of the fixing block to squeeze the ball. When the ball moves to match the ball groove, the ball is squeezed and contacts with the rotating groove, and the pressure ring enters the interior of the sleeve ring and cooperates with each other. The second thread groove and the first thread groove cooperate with each other to form a threaded hole that matches the fixing screw. By turning the fixing screw, the fixing ring, the pressure ring and the sleeve ring are locked with each other, which solves the problem of inconvenience in replacing the bearing body on site, makes the replacement of the bearing body more time-saving and labor-saving, improves the disassembly and assembly speed of the bearing body, and thus improves the replacement efficiency of the bearing body.

[0009] Preferably, the pressure ring and the sleeve ring match each other, and the pressure ring is slidably connected with the sleeve ring through the cooperation between the fixing block and the sleeve ring.

[0010] Preferably, the pressure ring and the fixing ring match each other.

[0011] Preferably, a spring is sleeved on the surface of the sliding column, one end of the spring is fixedly connected to the collar, and the other end of the spring is fixedly connected to the fixing block.

[0012] By adopting the above technical solution, the spring is used to reset the fixed block, so that the ball is separated from the ball groove and slides along the slope surface. The spring and the slide column ensure the stability of the movement of the fixed block.

[0013] Preferably, the inner wall of the bearing seat body is provided with a rotation groove that matches the ball, and the ring is rotatably connected to the bearing seat body through the matching of the ball and the rotation groove.

[0014] Preferably, a second thread groove is provided on the surface of the sleeve ring, a first thread groove matching the second thread groove is provided on the surface of the pressure ring, and a fixing screw matching the second thread groove and the first thread groove is rotatably connected to the surface of the fixing ring.

[0015] Preferably, the second thread groove and the first thread groove cooperate with each other to form a threaded hole matching with the fixing screw.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1) When the assembled aircraft engine bearing seat is in use, the pressure ring is squeezed by the fixing ring and moves with the fixing block, the slope surface follows the movement of the fixing block and squeezes the ball, when the ball moves to match the ball groove, the ball is squeezed and contacts with the rotating groove, the pressure ring enters the interior of the sleeve ring and cooperates with each other, the second thread groove and the first thread groove cooperate with each other to form a threaded hole matching the fixing screw, and the fixing ring, the pressure ring and the sleeve ring are locked with each other by rotating the fixing screw, thereby solving the problem of inconvenience in replacing the bearing body on site, making the replacement of the bearing body more time-saving and labor-saving, and improving the disassembly and assembly speed of the bearing body, thereby improving the replacement efficiency of the bearing body.

[0018] 2) When the assembled aircraft engine bearing seat is in use and the bearing body is replaced, the time for aligning the bearing body with the bearing seat body is reduced, the replacement efficiency of the bearing body is improved, and the use of a pressing device and a knocking device to knock the bearing body is avoided, thereby preventing the bearing body from being knocked and deformed, thereby protecting the bearing body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the bearing seat body of the utility model;

[0021] Figure 3 This is a schematic diagram of the bearing structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the ring structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the ball structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the compression ring structure of the utility model;

[0025] Figure 7 It is a schematic diagram of the fixing ring structure of the utility model.

[0026] Explanation of the numbers in the figure: 1. Bearing seat body; 2. Bearing body; 3. Ring; 4. Slot; 5. Ball; 6. Pressure ring; 7. Fixing block; 8. Ramp surface; 9. Ball groove; 10. Fixing ring; 11. Sliding column; 12. Spring; 13. Notch; 14. First thread groove; 15. Second thread groove; 16. Rotating groove; 17. Fixing screw. DETAILED DESCRIPTION Example

[0027] See also Figures 1 to 7 , an assembleable aircraft engine bearing seat, comprising a bearing seat body 1 and a bearing body 2, the bearing body 2 and the bearing seat body 1 match each other, and the bearing body 2 and the bearing seat body 1 are rotatably connected, a collar 3 is arranged at the bottom of the bearing body 2, a plurality of slots 4 are provided on the surface of the collar 3, and a ball 5 matching therewith is movably connected inside any of the slots 4, and the ball 5 is a wear-resistant ball 5 in the prior art, a pressure ring 6 is slidably connected inside the collar 3, and a fixing block 7 having the same number as the slot 4 is fixedly connected on the inner side surface of the pressure ring 6, and a notch 13 is provided on the surface of the fixing block 7, and a ramp surface 8 and a ball groove 9 are respectively arranged inside the notch 13, and the ball groove 9 matches the ball 5, a fixing ring 10 is slidably connected inside the pressure ring 6, and the fixing block 7 and the collar 3 are connected to each other. A sliding column 11 is arranged between the pressing ring 6, and the sliding column 11 is used for guiding the movement of the pressing ring 6. After the pressing ring 6 is squeezed by the fixing ring 10, it moves with the fixing block 7. The slope surface 8 follows the movement of the fixing block 7 to squeeze the ball 5. When the ball 5 moves to match the ball groove 9, the ball 5 is squeezed and contacts with the rotating groove 16. The pressing ring 6 enters the interior of the sleeve ring 3 and cooperates with each other. The second thread groove 15 and the first thread groove 14 cooperate with each other to form a threaded hole matching the fixing screw 17. By rotating the fixing screw 17, the fixing ring 10, the pressing ring 6 and the sleeve ring 3 are locked with each other, which solves the problem of inconvenience in replacing the bearing body 2 on site, makes the replacement of the bearing body 2 more time-saving and labor-saving, improves the disassembly and assembly speed of the bearing body 2, and thus improves the replacement efficiency of the bearing body 2.

[0028] The pressure ring 6 matches with the sleeve ring 3 , and the pressure ring 6 cooperates with the sleeve ring 3 through the fixing block 7 so as to be slidably connected with the sleeve ring 3 .

[0029] The pressure ring 6 and the fixing ring 10 match each other.

[0030] A spring 12 is sleeved on the surface of the sliding column 11, one end of the spring 12 is fixedly connected to the ring 3, and the other end of the spring 12 is fixedly connected to the fixed block 7. The spring 12 is used to reset the fixed block 7, so that the ball 5 disengages from the ball groove 9 and slides along the slope surface 8. The spring 12 and the sliding column 11 ensure the stability of the movement of the fixed block 7.

[0031] The inner wall of the bearing seat body 1 is provided with a rotation groove 16 which matches with the ball 5 , and the ring 3 is rotatably connected with the bearing seat body 1 through the matching between the ball 5 and the rotation groove 16 .

[0032] A second thread groove 15 is provided on the surface of the collar 3, a first thread groove 14 matching the second thread groove 15 is provided on the surface of the pressure ring 6, a fixing screw 17 matching the second thread groove 15 and the first thread groove 14 is rotatably connected to the surface of the fixing ring 10, the second thread groove 15 and the first thread groove 14 cooperate with each other to form a threaded hole matching the fixing screw 17, and the fixing ring 10, the pressure ring 6 and the collar 3 are locked with each other by rotating the fixing screw 17.

[0033] The second thread groove 15 and the first thread groove 14 cooperate with each other to form a threaded hole matching the fixing screw 17 .

[0034] The utility model uses the following steps: when the aircraft engine bearing seat that can be assembled is in use, when the bearing body 2 is worn and needs to be replaced, the fixing screw 17 is manually removed from the second thread groove 15 and the first thread groove 14 by a wrench, and the fixing ring 10 is manually pulled out from the inside of the pressure ring 6. At this time, the pressure ring 6 is reset under the elastic force of the spring 12, and the pressure ring 6 is reset and slides out of the sleeve ring 3. At this time, the fixing block 7 moves with the pressure ring 6. At this time, the ball 5 is separated from the ball groove 9 and slides along the ramp surface 8. Under the action of the ramp surface 8, the ball 5 is separated from the extrusion, and the sleeve ring 3 is manually pulled out. At this time, the ball 5 is squeezed by the inner wall of the bearing seat body 1. The bearing body 2 is retracted into the inner part of the slot 4, and then the bearing body 2 is removed from the bearing seat body 1. When replacing, the new bearing body 2 is inserted into the bearing seat body 1. The sleeve ring 3 moves with the ball 5 corresponding to the position of the rotating groove 16. The fixing ring 10 is manually pressed to move into the pressing ring 6. The pressing ring 6 is squeezed by the fixing ring 10 and moves, so that the pressing ring 6 moves with the fixing block 7. Due to the design of the ramp surface 8, the ramp surface 8 follows the movement of the fixing block 7 to squeeze the ball 5. The movement of the fixing block 7 squeezes the spring 12. When the ball 5 moves to match the ball groove 9, the ball 5 is squeezed and contacts with the rotating groove 16, and the pressing ring 6 The second thread groove 15 and the first thread groove 14 cooperate with each other to form a threaded hole matched with the fixing screw 17. By rotating the fixing screw 17, the fixing ring 10, the pressure ring 6 and the collar 3 are locked with each other. When the bearing body 2 is replaced, the time for the bearing body 2 and the bearing seat body 1 to align the holes is reduced, the replacement efficiency of the bearing body 2 is improved, and the use of a pressing device and a knocking device to knock the bearing body 2 is avoided, so that the bearing body 2 is prevented from being deformed due to knocking, thereby protecting the bearing body 2. In this scheme, the pressure ring 6 is squeezed by the fixing ring 10 and moves with the fixing block 7. The inclined surface 8 follows the movement of the fixed block 7 and squeezes the ball 5. When the ball 5 moves to match the ball groove 9, the ball 5 is squeezed and contacts with the rotating groove 16. The pressing ring 6 enters the interior of the sleeve ring 3 and cooperates with each other. The second thread groove 15 and the first thread groove 14 cooperate with each other to form a threaded hole matching the fixing screw 17. By rotating the fixing screw 17, the fixing ring 10, the pressing ring 6 and the sleeve ring 3 are locked with each other, which solves the problem of inconvenience in replacing the bearing body 2 on site, makes the replacement of the bearing body 2 more time-saving and labor-saving, improves the disassembly and assembly speed of the bearing body 2, and thus improves the replacement efficiency of the bearing body 2.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An assembleable aircraft engine bearing seat, comprising a bearing seat body (1) and a bearing body (2), wherein the bearing body (2) is rotatably connected to the bearing seat body (1), characterized in that: A collar (3) is provided at the bottom of the bearing body (2), a plurality of grooves (4) are provided on the surface of the collar (3), a ball (5) matching therewith is movably connected inside any of the grooves (4), a pressure ring (6) is slidably connected inside the collar (3), a fixing block (7) having the same number as the grooves (4) is fixedly connected to the inner side surface of the pressure ring (6), a notch (13) is provided on the surface of the fixing block (7), a slope surface (8) and a ball groove (9) are respectively provided inside the notch (13), the ball groove (9) matching the ball (5), a fixing ring (10) is slidably connected inside the pressure ring (6), and a sliding column (11) is provided between the fixing block (7) and the collar (3).

2. The assemblable aircraft engine bearing seat according to claim 1, characterized in that: The pressure ring (6) and the sleeve ring (3) match each other, and the pressure ring (6) cooperates with the sleeve ring (3) through the fixing block (7) and the sleeve ring (3) so as to be slidably connected with the sleeve ring (3).

3. The assemblable aircraft engine bearing seat according to claim 1, characterized in that: The pressure ring (6) and the fixing ring (10) match each other.

4. The assemblable aircraft engine bearing seat according to claim 1, characterized in that: A spring (12) is sleeved on the surface of the sliding column (11), one end of the spring (12) is fixedly connected to the collar (3), and the other end of the spring (12) is fixedly connected to the fixing block (7).

5. The assemblable aircraft engine bearing seat according to claim 1, characterized in that: The inner wall of the bearing seat body (1) is provided with a rotation groove (16) that matches the ball (5), and the collar (3) is rotatably connected to the bearing seat body (1) by matching the ball (5) and the rotation groove (16).

6. The assemblable aircraft engine bearing seat according to claim 1, characterized in that: The surface of the sleeve ring (3) is provided with a second thread groove (15), the surface of the pressure ring (6) is provided with a first thread groove (14) matching the second thread groove (15), and the surface of the fixing ring (10) is rotatably connected with a fixing screw (17) matching the second thread groove (15) and the first thread groove (14).

7. The assemblable aircraft engine bearing seat according to claim 6, characterized in that: The second thread groove (15) and the first thread groove (14) cooperate with each other to form a threaded hole matching the fixing screw (17).

Images