Loading switching section structure of mounting edge of engine case

Abstract

The utility model discloses an engine casing mounting edge loading switching section structure, which comprises a casing and mounting shells, the casing is fixedly connected with symmetrically arranged bearing pins, the interiors of the two mounting shells are fixedly connected with symmetrically arranged supports, the supports are fixedly provided with a hydraulic cylinder together, and the hydraulic cylinder is fixedly connected with the bearing pins. Mounting frames are fixedly connected to the opposite sides of the two mounting shells, symmetrically-arranged round rods are fixedly connected to the two mounting frames, driven gears are fixedly connected to the multiple round rods, mounting rings are fixedly connected to the multiple round rods, and fixing lugs are fixedly connected to the opposite sides of the multiple mounting rings; the output ends of the two hydraulic cylinders are fixedly connected with mounting plates, the positions, corresponding to the driven gears, of the two mounting plates are fixedly connected with driving racks, and the device has the beneficial effects that the two fixing lugs can be conveniently clamped with a force-bearing pin, the device is convenient to use, the fixing lugs do not need to be manually operated, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the field of engine casing technology, in particular to an engine casing installation side loading transition section structure. Background Art

[0002] When the aircraft takes off, lands, launches by catapult or maneuvers, the inertia force of the engine parts and components will be caused; under conditions of accelerated motion, the torque generated by the rotation of the parts and components will also be caused; and when the engine is running, the casing will also be subjected to gas loads such as torque and temperature load due to gas flow.

[0003] The existing patent document with application number 201921196536.X provides an engine casing mounting edge loading transition section structure. Through the skirt structure on the transition section, the position of the loaded torque and lateral tensile load is moved away from the mounting edge of the casing test piece, which fully simulates the boundary conditions, reduces the stress concentration problem near the mounting edge of the casing test piece, and is more in line with the actual stress state of the casing; although the above application has many beneficial effects, it still has the following shortcomings: the connection between the double-ear structure and the load-bearing pin requires the double ears to be manually opened, which is not convenient to use and has low practicality. Utility Model Content

[0004] The utility model aims to provide an engine casing mounting side loading transition section structure to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an engine casing mounting side loading transition section structure, comprising a casing and a mounting shell, the casing is fixedly connected with symmetrically arranged load-bearing pins, the two mounting shells are fixedly connected with symmetrically arranged supports inside, the supports are jointly fixedly mounted with hydraulic cylinders, the opposite sides of the two mounting shells are fixedly connected with mounting frames, the two mounting frames are fixedly connected with symmetrically arranged round rods, a plurality of the round rods are fixedly connected with driven gears, a plurality of the round rods are fixedly connected with mounting rings, the opposite sides of the plurality of mounting rings are fixedly connected with fixing ears, the output ends of the two hydraulic cylinders are fixedly connected with mounting plates, the two mounting plates are fixedly connected with active racks at positions corresponding to the driven gears, the two mounting frames are provided with passage grooves at positions corresponding to the mounting plates, and the two mounting plates are fixedly connected with symmetrically arranged guide rods at positions corresponding to the passage grooves.

[0006] Preferably, the hydraulic cylinders are all located inside a mounting shell, and a mounting cavity is provided inside the mounting shell.

[0007] Preferably, the driving racks are all located at the middle position of the driven gears, and the driving racks are all meshingly connected with the driven gears.

[0008] Preferably, guide plates are fixedly connected inside the mounting shell, opposite sides of the two hydraulic cylinders pass through the guide plates, and the guide rods are slidably connected to the guide plates.

[0009] Preferably, the guide rods all pass through the passage slots and are located inside the mounting shell.

[0010] Compared with the prior art, the beneficial effects of the utility model are: an active rack, a driven gear, a hydraulic cylinder and a movable plate, etc. are provided. When in use, the power output of the hydraulic cylinder can be used to link the various mechanisms, so that the two fixed ears are opened or closed at the same time, so that the two fixed ears can be clamped to the load-bearing pins. It is easy to use and does not require manual operation of the fixed ears. It is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0012] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0013] Figure 3 It is a cross-sectional structural schematic diagram of the utility model.

[0014] In the figure: 1. casing; 2. mounting shell; 3. load-bearing pin; 4. support; 5. hydraulic cylinder; 6. mounting frame; 7. round rod; 8. driven gear; 9. mounting ring; 10. fixing ear; 11. mounting plate; 12. active rack; 13. passage groove; 14. guide rod; 15. guide plate. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1-3The utility model provides a technical solution: an engine casing mounting side loading transition section structure, comprising a casing 1 and a mounting shell 2, the casing 1 is fixedly connected with a symmetrically arranged load-bearing pin 3, the two mounting shells 2 are fixedly connected with symmetrically arranged supports 4 inside, the supports 4 are jointly fixedly installed with a hydraulic cylinder 5, the opposite sides of the two mounting shells 2 are fixedly connected with mounting frames 6, the two mounting frames 6 are fixedly connected with symmetrically arranged round rods 7, a plurality of round rods 7 are fixedly connected with driven gears 8, a plurality of round rods 7 are fixedly connected with mounting rings 9, the opposite sides of the plurality of mounting rings 9 are fixedly connected with fixing ears 10, the output ends of the two hydraulic cylinders 5 are fixedly connected with mounting plates 11, the two mounting plates 11 are fixedly connected with active racks 12 at positions corresponding to the driven gears 8, the two mounting frames 6 are provided with passage grooves 13 at positions corresponding to the mounting plates 11, and the two mounting plates 11 are fixedly connected with symmetrically arranged guide rods 14 at positions corresponding to the passage grooves 13.

[0017] Furthermore, the hydraulic cylinders 5 are all located inside the mounting shell 2 , and a mounting cavity is provided inside the mounting shell 2 .

[0018] Furthermore, the active racks 12 are all located at the middle position of the driven gears 8, and the active racks 12 are all meshed and connected with the driven gears 8, so that the active racks 12 can drive the driven gears 8 to rotate.

[0019] Furthermore, guide plates 15 are fixedly connected inside the mounting shell 2 , opposite sides of the two hydraulic cylinders 5 pass through the guide plates 15 , and guide rods 14 are slidably connected to the guide plates 15 , so that the guide rods 14 are convenient for guiding the movement of the mounting plate 11 .

[0020] Furthermore, the guide rods 14 all pass through the passage slots 13 and are located inside the mounting shell 2 .

[0021] Specifically, when the utility model is used, the hydraulic cylinder 5 is started, and the retraction of the output end of the hydraulic cylinder 5 will drive the mounting plate 11 and the active rack 12 to move into the mounting shell 2, and the mounting plate 11 will drive the guide rod 14 to move, and the guide rod 14 can guide the movement of the mounting plate 11. The movement of the mounting plate 11 will drive the active rack 12 to move, and the movement of the active rack 12 into the mounting shell 2 will drive the two driven gears 8 and the round rod 7 to rotate, and the round rod 7 will drive the mounting ring 9 and the fixing ear 10 to rotate. At this time, each fixing ear 10 will rotate and open in a direction away from each other, and then the output end of the hydraulic cylinder 5 will be extended to make the two fixing ears 10 close and bite the load-bearing pin 3. At this time, the external tool connected to the mounting shell 2 can be pulled, and the casing 1 can be pulled to flip through the mounting shell 2 and the fixing ear 10, so as to realize the torque and lateral tensile load loaded on the casing 1, and completely simulate the boundary conditions.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An engine casing mounting side loading transition section structure, characterized in that: The invention comprises a casing (1) and a mounting shell (2), wherein the casing (1) is fixedly connected with a symmetrically arranged load-bearing pin (3), the insides of the two mounting shells (2) are fixedly connected with symmetrically arranged supports (4), the supports (4) are commonly fixedly mounted with a hydraulic cylinder (5), the opposite sides of the two mounting shells (2) are fixedly connected with mounting frames (6), the two mounting frames (6) are fixedly connected with symmetrically arranged round rods (7), the plurality of the round rods (7) are fixedly connected with driven gears (8), and the plurality of the round rods (7) are fixedly connected with a driven gear (8). Both are fixedly connected with mounting rings (9), and opposite sides of the mounting rings (9) are fixedly connected with fixing ears (10), the output ends of the two hydraulic cylinders (5) are fixedly connected with mounting plates (11), and the positions of the two mounting plates (11) corresponding to the driven gears (8) are fixedly connected with driving racks (12), and the positions of the two mounting frames (6) corresponding to the mounting plates (11) are provided with passage grooves (13), and the positions of the two mounting plates (11) corresponding to the passage grooves (13) are fixedly connected with symmetrically arranged guide rods (14).

2. The engine casing mounting side loading transition section structure according to claim 1, characterized in that: The hydraulic cylinders (5) are all located inside the mounting shell (2), and a mounting cavity is provided inside the mounting shell (2).

3. The engine casing mounting side loading transition section structure according to claim 1, characterized in that: The active racks (12) are all located at the middle position of the driven gear (8), and the active racks (12) are all meshingly connected with the driven gear (8).

4. The engine casing mounting side loading transition section structure according to claim 1, characterized in that: A guide plate (15) is fixedly connected inside the mounting shell (2), opposite sides of the two hydraulic cylinders (5) pass through the guide plate (15), and the guide rods (14) are slidably connected to the guide plate (15).

5. The engine casing mounting side loading transition section structure according to claim 1, characterized in that: The guide rods (14) all pass through the passage slots (13) and are located inside the mounting shell (2).

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