An aero-piston engine crankshaft oil seal ring installation tool

Abstract

This invention discloses an installation tool for crankshaft oil seal rings of aircraft piston engines, belonging to the technical field of oil seal ring installation tools. The installation handle has a connecting block on its left side, which connects to a fixing head. The top of the fixing head connects to an arc-shaped wrench, and a first roller connects to a first gear. The first gear meshes with a track, and the track meshes with a second gear. The second gear connects to the arc-shaped wrench via a first fixed shaft, and the corner of the track is in contact with the second fixed shaft. The track meshes with a third gear, and the third gear connects to a second roller, which in turn connects to the arc-shaped wrench. A magnetic fixing structure is provided at the top of the track. Because of the first roller, after the flange and arc-shaped wrench are engaged, the user can move the first and second rollers along the edge of the flange by pressing the installation handle, thereby moving the entire installation tool.

Description

Technical Field

[0001] This invention relates to the field of oil seal ring installation tools, specifically an oil seal ring installation tool for an aircraft piston engine crankshaft. Background Technology

[0002] An aircraft piston engine, also known as a reciprocating internal combustion engine, is a heat engine that uses one or more pistons to convert combustion gas pressure into rotational kinetic energy. The most common aircraft piston engines use gasoline or kerosene fuel to generate pressure. These engines typically have several pistons and cylinder assemblies. A fuel-air mixture is injected into the cylinder and ignited. The hot gas expands, pushing the piston in a linear motion within the cylinder. This linear motion of the piston is then converted into circular motion via connecting rods and crankshaft cranks, thereby driving the propeller to generate thrust or pull. During the manufacturing and maintenance of piston engines, crankshaft oil seals are often installed via crankshaft flanges to create a relatively sealed space in the engine's lubrication system, ensuring stable oil consumption. However, existing oil seal installation tools have some shortcomings, such as:

[0003] Existing crankshaft oil seal installation tools often require pulling the oil seal to a certain extent when installing it on the crankshaft flange. Due to the inherent elasticity of the oil seal, it may spring back, leading to installation failure. Furthermore, when installing the oil seal on the crankshaft flange using the installation tool, the tool is difficult to move, making the installation process very laborious.

[0004] Therefore, we propose a crankshaft oil seal installation tool for aircraft piston engines to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide an installation tool for crankshaft oil seal rings of aircraft piston engines, in order to solve the problems mentioned in the background art that the current installation tools on the market may damage the oil seal rings during installation and that the installation is very laborious due to the difficulty in moving the installation tools.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an installation tool for crankshaft oil seal rings of an aviation piston engine, comprising an installation handle, a mandrel, and a connecting block. The installation handle has a mandrel inside, and a connecting block is provided on the left side of the installation handle. The connecting block is connected to a fixing head, and the top of the fixing head is connected to an arc-shaped wrench. The bottom inner side of the arc-shaped wrench is provided with a first roller, and the first roller is connected to a first gear.

[0007] The first gear meshes with the track, and the track meshes with the second gear. The second gear is connected to the arc-shaped wrench via the first fixed shaft. The corner of the track is in contact with the second fixed shaft. The track meshes with the third gear, and the third gear is connected to the second roller. The second roller is connected to the arc-shaped wrench. The top of the track is provided with a magnetic fixing structure.

[0008] The magnetic fixing structure is provided with a magnetic shielding plate at the top, and a spring telescopic rod is provided at the top of the magnetic shielding plate. The spring telescopic rod is connected to a threaded connecting rod, and a first bevel gear is provided at the top of the threaded connecting rod. The first bevel gear is connected to a second bevel gear, and a fourth gear is provided on the rear side of the second bevel gear. The fourth gear is connected to the track.

[0009] The arc-shaped wrench fits into the flange, and the mandrel can be inserted into the flange connection hole. The mandrel and the connecting block fit into the oil seal ring body.

[0010] Because of the inclusion of a first roller, a second roller, and a magnetic fixing structure, after the flange and the arc-shaped wrench are fitted together, the user can move the first and second rollers along the edge of the flange by pressing the installation handle, thereby moving the entire installation tool. When the first and second rollers stop rotating, the spring telescopic rod will press down the magnetic fixing structure to fit against the flange and fix it in place. Furthermore, due to the mandrel, after the connecting block and the oil seal ring body are fitted together, the mandrel can pass through the flange connection hole, allowing the oil seal ring body to be hung on the mandrel and moved with the installation tool, thus avoiding damage to the oil seal ring body due to excessive tension.

[0011] As a preferred embodiment of the present invention, a hand guard is provided on the outside of the mounting handle, and a protective ring is provided on the top of the connecting block, and the connecting block is fitted with the oil seal ring body through the protective ring.

[0012] The above technical solution enables the hand guard to provide a certain degree of protection for the user when pushing the installation handle, thus increasing the protective capabilities of the device.

[0013] As a preferred embodiment of the present invention, the mounting handle has a storage cavity inside, and the mounting handle stores the mandrel through the storage cavity.

[0014] The above technical solution allows the mandrel to be stored in the storage cavity after use, making it easy to take out for the next use and increasing the storage capacity of the device.

[0015] As a preferred embodiment of the present invention, a threaded sleeve is provided on the left side of the storage cavity, and the threaded sleeve is connected to the installation handle, and the threaded sleeve is threadedly connected to the threaded cover.

[0016] The above technical solution enables the threaded cap to seal the storage cavity and makes disassembly more convenient.

[0017] As a preferred embodiment of the present invention, the rear part of the fixing head is connected to the rotating fixing shaft, and the rotating fixing shaft and the sliding groove form a sliding connection, and the rear part of the sliding groove is connected to the fixing plate.

[0018] The above technical solution enables the fixing plate to fix the flange through the connecting shaft. Since the fixing head is connected to the rotating fixing shaft, the entire installation tool will rotate at a certain angle with the rotating fixing shaft. When the magnetic fixing structure fixes the entire installation tool, the rotating fixing shaft will also suspend the installation tool at the stop position of the fixing plate, thereby increasing the stability of the equipment.

[0019] As a preferred embodiment of the present invention, a connecting shaft is provided in the middle of the fixing plate, and the connecting shaft can be fixedly connected to the flange.

[0020] The above technical solution enables the fixing plate to be more securely connected to the flange, thus increasing the stability of the equipment.

[0021] As a preferred embodiment of the present invention, the arc-shaped wrench head has a groove inside, and the first roller and the second roller pass through the arc-shaped wrench head.

[0022] The above technical solution enables the first and second rollers to fit more smoothly against the edge of the flange.

[0023] As a preferred technical solution of the present invention, a sealing cover is provided on the right side of the fixing buckle, and the sealing cover is threadedly connected to the arc-shaped wrench by bolts.

[0024] The above technical solution allows users to remove the cover when disassembling and replacing parts inside the arc-shaped wrench, making it more convenient for users to replace parts.

[0025] 1. Due to the installation of the first roller, the second roller, and the magnetic fixing structure, after the flange and the arc-shaped wrench are fitted together, the user can press the installation handle to move the first roller and the second roller on the edge of the flange, thereby moving the entire installation tool. When the first roller and the second roller stop rotating, the spring telescopic rod will press down the magnetic fixing structure to fit against the flange and fix it. Furthermore, due to the mandrel, after the connecting block and the oil seal ring body are fitted together, the mandrel can pass through the flange connection hole, allowing the oil seal ring body to be hung on the mandrel and moved with the installation tool, thus avoiding damage to the oil seal ring body due to excessive tension.

[0026] 2. By setting up a fixed plate and a rotating fixed shaft, after the fixed plate fixes the flange through the connecting shaft, the entire installation tool will rotate at a certain angle with the rotating fixed shaft because the fixed head is connected to the rotating fixed shaft. When the magnetic fixing structure fixes the entire installation tool, the rotating fixed shaft will also suspend the installation tool at the stop position of the fixed plate, thereby increasing the stability of the equipment. Attached Figure Description

[0027] Figure 1 This is a frontal cross-sectional view of the present invention.

[0028] Figure 2 This is a front view cross-sectional structural diagram of the flange of the present invention after installation;

[0029] Figure 3 This is a front view structural diagram of the present invention;

[0030] Figure 4 This is a top view of the structure of the present invention;

[0031] Figure 5 This is a schematic diagram of the magnetic attraction fixing structure of the present invention;

[0032] Figure 6 For the present invention Figure 1 A magnified structural diagram at point A;

[0033] Figure 7 For the present invention Figure 2 A magnified structural diagram at point B;

[0034] Figure 8 This is a schematic diagram illustrating the operational structure of the present invention.

[0035] In the diagram: 1. Handle installation; 2. Hand guard; 3. Storage cavity; 4. Mandrel; 5. Threaded sleeve; 6. Threaded cap; 7. Connecting block; 8. Protective ring; 9. Fixing head; 10. Arc-shaped wrench; 11. First roller; 12. First gear; 13. Track; 14. Second gear; 15. First fixed shaft; 16. Second fixed shaft; 17. Third gear; 18. Second roller; 19. Magnetic fixing structure; 20. Magnetic shield; 21. Spring telescopic rod; 22. Threaded connecting rod; 23. First bevel gear; 24. Second bevel gear; 25. Fourth gear; 26. Fixing plate; 27. Rotating fixed shaft; 28. Sliding groove; 29. ​​Connecting shaft; 30. Flange connection hole; 31. Oil seal ring body. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] Please see Figure 1-8 The present invention provides a technical solution: an installation tool for crankshaft oil seal rings of aviation piston engines, including an installation handle 1, a spindle 4 and a connecting block 7. The installation handle 1 has a spindle 4 inside, and the left side of the installation handle 1 has a connecting block 7. The connecting block 7 is connected to a fixing head 9, and the top of the fixing head 9 is connected to an arc-shaped wrench 10. The bottom inner side of the arc-shaped wrench 10 has a first roller 11, and the first roller 11 is connected to a first gear 12.

[0038] The first gear 12 meshes with the track 13, and the track 13 meshes with the second gear 14. The second gear 14 is connected to the arc-shaped wrench 10 through the first fixed shaft 15. The corner of the track 13 is in contact with the second fixed shaft 16. The track 13 meshes with the third gear 17. The third gear 17 is connected to the second roller 18. The second roller 18 is connected to the arc-shaped wrench 10. The top of the track 13 is provided with a magnetic fixing structure 19.

[0039] The magnetic fixing structure 19 is provided with a magnetic shielding plate 20 at the top, and a spring telescopic rod 21 is provided at the top of the magnetic shielding plate 20. The spring telescopic rod 21 is connected to the threaded connecting rod 22. The threaded connecting rod 22 is provided with a first bevel gear 23 at the top, and the first bevel gear 23 is connected to a second bevel gear 24. A fourth gear 25 is provided on the rear side of the second bevel gear 24, and the fourth gear 25 is connected to the track 13.

[0040] The arc-shaped wrench 10 is fitted with the flange, and the mandrel 4 can be inserted into the flange connection hole 30. The mandrel 4 and the connecting block 7 are connected to the oil seal ring body 31. After fitting the arc-shaped wrench 10 with the flange, the mandrel 4 is connected to the flange connection hole 30 on the flange. Then, the two ends of the oil seal ring body 31 are fitted with the mandrel 4 and the connecting block 7. When the installation handle 1 is pressed, the first roller 11 and the second roller 18 inside the arc-shaped wrench 10 rotate. Since the first gear 12 and the third gear 17 mesh with the track 13, the track 13 will drive the second gear 14 to rotate, causing the first roller 11 and the second roller 18 to rotate. 18 can move or stop simultaneously, and since the fourth gear 25 meshes with the track 13, the fourth gear 25 will also rotate with the rotation of the first roller 11 and the second roller 18. At the same time, due to the rotation of the fourth gear 25, the second bevel gear 24 will also rotate, thereby driving the first bevel gear 23 to rotate, causing the second bevel gear 24 to drive the threaded connecting rod 22 to rotate, thereby causing the spring telescopic rod 21 to retract under the drive of the threaded connecting rod 22. When the first roller 11 and the second roller 18 stop rotating, the spring telescopic rod 21 will be pushed down by the spring and the magnetic fixing structure 19 will be attached to the flange, thereby suspending the equipment.

[0041] The mounting handle 1 has a hand guard 2 on its outer side, and the connecting block 7 has a protective ring 8 on its top. The connecting block 7 fits into the oil seal ring body 31 through the protective ring 8. The mounting handle 1 has a storage cavity 3 inside, and the mounting handle 1 stores the spindle 4 through the storage cavity 3. The storage cavity 3 has a threaded sleeve 5 on its left side, and the threaded sleeve 5 is connected to the mounting handle 1 and threadedly connected to the threaded cover 6. The rear of the fixing head 9 is connected to the rotating fixing shaft 27, and the rotating fixing shaft 27 is slidably connected to the sliding groove 28. The rear of the sliding groove 28 is connected to the fixing plate 26. The fixing plate 26 has a connecting shaft 29 in the middle, and the connecting shaft 29 can be fixedly connected to the flange. When the flange is fixed, it can be fixed by connecting the flange to the connecting shaft 29 on the fixing plate 26. When the mounting tool rotates and moves, since the rotating fixing shaft 27 is connected to the fixing head 9, the entire mounting tool will rotate and move along the track of the sliding groove 28, thereby increasing the stability of the equipment.

[0042] Working principle: When using the crankshaft oil seal ring installation tool for aircraft piston engines, first, engage the arc-shaped wrench 10 with the flange, then connect the mandrel 4 to the flange connection hole 30 on the flange, and then align both ends of the oil seal ring body 31 with the mandrel 4 and connecting block 7. Pressing the installation handle 1 causes the first roller 11 and second roller 18 inside the arc-shaped wrench 10 to rotate. Since the first gear 12 and third gear 17 mesh with the track 13, the track 13 drives the second gear 14 to rotate, allowing the first roller 11 and second roller 18 to move or stop simultaneously. Since the fourth gear 25 meshes with the track 13, the fourth gear 25 will also rotate along with the rotation of the first roller 11 and the second roller 18. At the same time, due to the rotation of the fourth gear 25, the second bevel gear 24 will also rotate, thereby driving the first bevel gear 23 to rotate, causing the second bevel gear 24 to drive the threaded connecting rod 22 to rotate, thereby causing the spring telescopic rod 21 to retract under the drive of the threaded connecting rod 22. When the first roller 11 and the second roller 18 stop rotating, the spring telescopic rod 21 will be pushed down by the spring and the magnetic fixing structure 19 will be attached to the flange, thereby suspending the equipment.

[0043] When the flange is being fixed, it can be fixed to the connecting shaft 29 on the fixing plate 26. When the installation tool is rotating and moving, since the rotating fixing shaft 27 is connected to the fixing head 9, the entire installation tool will rotate and move along the track of the sliding groove 28, thereby increasing the stability of the equipment.

[0044] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An aero-piston engine crankshaft oil seal ring installation tool comprising an installation handle (1), a mandrel (4) and a connecting block (7), characterized in that, The mounting handle (1) has a spindle (4) inside, and a connecting block (7) is provided on the left side of the mounting handle (1). The connecting block (7) is connected to the fixing head (9), and the top of the fixing head (9) is connected to the arc-shaped wrench (10). The bottom of the inner side of the arc-shaped wrench (10) is provided with a first roller (11), and the first roller (11) is connected to the first gear (12). The first gear (12) meshes with the track (13), and the track (13) meshes with the second gear (14). The second gear (14) is connected to the arc-shaped wrench (10) through the first fixed shaft (15). The corner of the track (13) is in contact with the second fixed shaft (16). The track (13) meshes with the third gear (17). The third gear (17) is connected to the second roller (18). The second roller (18) is connected to the arc-shaped wrench (10). The top of the track (13) is provided with a magnetic fixing structure (19). The magnetic fixing structure (19) is provided with a magnetic shielding plate (20) on the top, and a spring telescopic rod (21) is provided on the top of the magnetic shielding plate (20). The spring telescopic rod (21) is connected to the threaded connecting rod (22). The threaded connecting rod (22) is provided with a first bevel gear (23) on the top, and the first bevel gear (23) is connected to the second bevel gear (24). The second bevel gear (24) is provided with a fourth gear (25) on the rear side, and the fourth gear (25) is connected to the track (13). The arc-shaped wrench (10) is fitted with the flange, and the mandrel (4) can be inserted into the flange connection hole (30). The mandrel (4) and the connecting block (7) are connected to the oil seal ring body (31).

2. The aviation piston engine crankshaft oil seal ring installation tool of claim 1, wherein, The mounting handle (1) is provided with a hand guard (2) on the outside, and the top of the connecting block (7) is provided with a protective ring (8), and the connecting block (7) is attached to the oil seal ring body (31) through the protective ring (8).

3. The crankshaft oil seal ring installation tool for an aircraft piston engine according to claim 1, characterized in that, The mounting handle (1) has a storage cavity (3) inside, and the mounting handle (1) stores the mandrel (4) through the storage cavity (3).

4. The aviation piston engine crankshaft oil seal ring installation tool according to claim 3, characterized in that, The storage cavity (3) is provided with a threaded sleeve (5) on the left side, and the threaded sleeve (5) is connected to the installation handle (1), and the threaded sleeve (5) is threadedly connected to the threaded cover (6).

5. The crankshaft oil seal ring installation tool for an aircraft piston engine according to claim 1, characterized in that, The rear part of the fixed head (9) is connected to the rotating fixed shaft (27), and the rotating fixed shaft (27) and the sliding groove (28) form a sliding connection, and the rear part of the sliding groove (28) is connected to the fixed plate (26).

6. The aviation piston engine crankshaft oil seal ring installation tool according to claim 5, characterized in that, The fixing plate (26) is provided with a connecting shaft (29) in the middle, and the connecting shaft (29) can be fixedly connected to the flange.

7. The crankshaft oil seal ring installation tool for an aircraft piston engine according to claim 1, characterized in that, The arc-shaped wrench (10) has a groove inside, and the first roller (11) and the second roller (18) pass through the arc-shaped wrench (10).

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