A fixed installation structure for a propeller cap and a mounting plate of a propeller fairing

Abstract

The present invention discloses a fixed installation structure of a propeller cap and a mounting plate of a propeller fairing, wherein a stopper is fixed on a stop ring, a lock is fixed on the mounting plate, and each stop pin is fixed on the propeller cap; screw receiving holes for each screw are provided on the same circumference of the propeller cap between the stop pins, screw fixing holes and stop pin fixing holes are provided on corresponding positions of the mounting plate, and elongated strip limiting holes for screws and locking holes for the stop ring are provided on corresponding positions of the stop ring; the center lines of the elongated limiting holes and the locking holes are both located on the same circumference of the stop ring; the stop ring is connected to the mounting plate by screws, and the stop ring can rotate on the mounting plate; the stop pin is inserted into the stop pin fixing hole and the locking hole, and can be locked and fixed with the smallest end of the locking hole; the lock can be opened and can also be fixed to the stopper. The propeller of the present invention is easy to disassemble and assemble for field maintenance of the propeller, making field maintenance simple and convenient without damaging parts.

Description

Technical Field

[0001] The invention relates to a detachable mounting structure for fixing a propeller cap of a propeller fairing to a mounting plate thereof. Background Art

[0002] The propeller cap of the existing propeller fairing is riveted or connected to the mounting plate with screws, and the fairing is fixed to the propeller hub as a whole. When performing field maintenance on the propeller, the entire fairing needs to be removed from the propeller hub and then installed after the maintenance is completed. The disassembly and assembly are complicated and the workload is large, making on-site maintenance very cumbersome, which is no longer suitable for the development requirements of propeller technology. Summary of the invention

[0003] The purpose of the present invention is to solve the above-mentioned problems existing in the prior art and to provide a fixed installation structure for a propeller fairing's spinner cap and a mounting plate. A propeller using the fixed installation structure can be easily disassembled and assembled for field maintenance, thereby making field maintenance simple and convenient without damaging components.

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is: a fixed installation structure of a propeller cap and a mounting plate of a propeller fairing, including a stop ring, a limiter, a lock, a plurality of stop pins and a plurality of screws; the limiter is fixed on the stop ring, the lock is fixed on the mounting plate, and each stop pin is fixed on the propeller cap; screw receiving holes for each screw are opened on the same circumference of the propeller cap between the stop pins, the mounting plate is opened with screw fixing holes and stop pin fixing holes at positions corresponding to the stop pins and screw receiving holes on the propeller cap, and the stop ring is opened at the corresponding position The elongated limiting hole of the nail and the locking hole of the stop ring; the center lines of the elongated limiting hole and the locking hole are located on the same circumference of the stop ring; the stop ring is connected to the mounting plate by screws, and a gap is left between the screws and the elongated limiting hole, so that the stop ring can rotate on the mounting plate; the stop pin is passed through the stop pin fixing hole of the mounting plate and the locking hole of the stop ring, and can be locked and fixed with the smallest end of the locking hole; the lock can be opened and also fixed to the limiter; when the stop pin is located at the smallest end of the locking hole, the lock is fixed to the limiter to prevent the stop ring from rotating.

[0005] The locking hole is a gourd-shaped hole composed of intersecting large and small round holes, and the small round hole just matches the diameter of the stop pin. The locking effect is good and the locking is simple.

[0006] The lock described above includes a fixer, a housing, a pin and a spring; the fixer is a variable width rod, which is inserted into the housing, and one end of which is a fork-shaped piece; the width of the end close to the fork-shaped piece just matches the width of the inner hole of the housing, and a threaded hole matching the pin is opened on one side of the end, and a spring installation position is provided between the other end and the housing, and the spring is inserted on the end of the fixer and clamped in the spring installation position; a movable groove for the pin is opened on the housing at a position relative to the threaded hole of the fixer; the pin is inserted into the movable groove on the housing and fixed in the threaded hole of the fixer; the limiter is T-shaped, and the horizontal wall of the T-shaped is fixed to the stop ring, and the vertical wall is protruded with a protrusion matching the fork-shaped piece of the lock's fixer. When the fork-shaped piece of the fixer is inserted on the protrusion, the lock is fixed on the limiter to prevent the stop ring from rotating; when the fork-shaped piece is separated from the protrusion, the lock is opened and the stop ring can rotate. The structure is simple, easy to use, and has high locking reliability.

[0007] The present invention can be used to detachably fix the propeller cap of the propeller fairing to its mounting plate. When performing field maintenance on the propeller, the propeller cap can be removed by simply opening the lock, rotating the stop ring, and moving the stop pin from the smallest end of the locking hole to the large end. After the maintenance is completed, the stop pin on the propeller cap is inserted into the mounting plate and the stop ring, and after moving to the smallest end of the locking hole to lock, the lock is fixed to the stopper. The present invention is simple and easy to disassemble and assemble, making field maintenance of the propeller simple and convenient without damaging parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the installation structure of the present invention;

[0009] Figure 2 It is a schematic diagram of the structure of the long strip limiting hole in the present invention;

[0010] Figure 3 It is a structural schematic diagram of the locking hole in the present invention;

[0011] Figure 4 is a cross-sectional view of the restraint device of the present invention;

[0012] Figure 5 is a cross-sectional view of the lock of the present invention;

[0013] Figure 6 It is a cross-sectional view of the lock and the stopper when they are fixed together in the present invention;

[0014] Figure 7 It is a partial schematic diagram of the installation structure of the present invention. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, this embodiment includes a stop ring 1, a stopper 2, a lock 3, a plurality of stop pins 6 and a plurality of screws 4. The stopper 2 is fixed on the stop ring 1, the lock 3 is fixed on the mounting plate 5, and each stop pin 6 is fixed on the propeller cap 7. Screw receiving holes for each screw 4 are provided on the same circumference of the propeller cap 7 between the stop pins 6, the mounting plate 5 is provided with screw fixing holes and stop pin fixing holes at positions corresponding to the stop pins 6 and the screw receiving holes on the propeller cap 7, and a long strip limiting hole 15 for the screw and a locking hole 16 for the stop ring are provided at corresponding positions of the stop ring 1. The center lines of the long strip limiting hole 15 and the locking hole 16 are both located on the same circumference of the stop ring 1; the stop ring 1 is connected to the mounting plate 5 by screws 4, and a gap is left between the screws 4 and the long strip limiting hole 15, so that the stop ring 1 can rotate on the mounting plate 5. The stop pin 6 is inserted into the stop pin fixing hole of the mounting plate 5 and the locking hole 16 of the stop ring 1, and can be locked and fixed with the smallest end of the locking hole 16; preferably, the locking hole 16 is a gourd-shaped hole composed of intersecting large and small circular holes 17 and 18, and the small circular hole 18 just matches the diameter of the stop pin 6. The lock 3 can be opened and can also be fixed to the limiter 2; when the stop pin 6 is located at the smallest end of the locking hole 16, the lock 3 is fixed to the limiter 2 to prevent the stop ring from rotating. Preferably, the lock 3 comprises a retainer 13, a housing 10, a pin 11 and a spring 14; the retainer 13 is a variable width rod, which is inserted into the housing 10, and one end of which is a fork-shaped piece 9; the width of the end close to the fork-shaped piece 9 just matches the width of the inner hole of the housing 10, and a threaded hole matching the pin 11 is opened on one side of the end, and a spring installation position is provided between the other end and the housing 10, and the spring 14 is inserted on the end of the retainer 13 and clamped in the spring installation position; The housing 10 at the position is provided with a movable groove 12 for the pin 11; the pin 11 is inserted into the movable groove 12 on the housing 10 and fixed in the threaded hole of the fixer 13; the stopper 2 is T-shaped, the horizontal wall of the T-shaped is fixed to the stop ring, and the vertical wall is protruded with a protrusion 8 matching the fork-shaped piece 9 of the lock fixer. When the fork-shaped piece 9 of the fixer 13 is inserted into the protrusion 8, the lock 3 is fixed on the stopper 2 to prevent the stop ring 1 from rotating; when the fork-shaped piece 9 is separated from the protrusion 8, the lock 3 is opened and the stop ring 1 can rotate. 19 is a propeller.

[0017] The above embodiments are only preferred and exemplary. Those skilled in the art can make equivalent technical improvements according to the spirit of this patent, which are all covered by the protection scope of this patent.

Claims

1. A fixed installation structure for a propeller cap and a mounting plate of a propeller fairing, Features: It includes a stop ring, a limiter, a lock, a plurality of stop pins and a plurality of screws; the limiter is fixed on the stop ring, the lock is fixed on the mounting plate, and each stop pin is fixed on the propeller cap; screw receiving holes for each screw are opened on the same circumference of the propeller cap between the stop pins, the mounting plate is provided with screw fixing holes and stop pin fixing holes at positions corresponding to the stop pins and screw receiving holes on the propeller cap, and a long strip-shaped limiting hole for the screw and a locking hole for the stop ring are opened at the corresponding position of the stop ring; the long strip-shaped limiting hole for the screw and the locking hole for the stop ring are opened; The center lines of the strip-shaped limiting hole and the locking hole are located on the same circumference of the stop ring; the stop ring is connected to the mounting plate by screws, and a gap is left between the screws and the long strip-shaped limiting hole, so that the stop ring can rotate on the mounting plate; the stop pin is inserted into the stop pin fixing hole of the mounting plate and the locking hole of the stop ring, and can be locked and fixed with the smallest end of the locking hole; the lock can be opened and can also be fixed to the limiter; when the stop pin is located at the smallest end of the locking hole, the lock is fixed to the limiter; The locking hole is a gourd-shaped hole composed of intersecting large and small circular holes, and the small circular hole just matches the diameter of the stop pin; The lock comprises a fixer, a shell, a pin and a spring; the fixer is a variable width rod which is passed through the shell and has a fork-shaped piece at one end; the width of the end close to the fork-shaped piece just matches the width of the inner hole of the shell, a threaded hole matching the pin is opened on one side of the end, a spring mounting position is provided between the other end and the shell, the spring is passed through the end of the fixer and is clamped in the spring mounting position; a movable groove for the pin is opened on the shell at a position relative to the threaded hole of the fixer; the pin is passed through the movable groove on the shell and fixed in the threaded hole of the fixer; the limiter is T-shaped, the horizontal wall of the T-shaped piece is fixed to the stop ring, and the vertical wall is protruded with a protrusion matching the fork-shaped piece of the fixer of the lock, when the fork-shaped piece of the fixer is inserted on the protrusion, the lock is fixed on the limiter; when the fork-shaped piece is separated from the protrusion, the lock is opened.

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