CN113022881B

CN113022881B - Device is repaired to propeller hub cambered surface of aircraft screw

Info

Publication number: CN113022881B
Application number: CN202110208748.0A
Authority: CN
Inventors: 成清; 石建迈; 程光权; 杜航
Original assignee: National University of Defense Technology
Current assignee: National University of Defense Technology
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2022-10-14
Anticipated expiration: 2041-02-25
Also published as: CN113022881A

Abstract

The invention discloses a repair device for a cambered surface of a hub of an airplane propeller, and relates to the technical field of propeller repair. The invention comprises a sliding upright post, an upper installation round seat and a lower installation round seat, wherein a driving motor is arranged on one side face of the lower installation round seat, a rotating disc is arranged on the upper surface of the lower installation round seat and is in rotating fit with the lower installation round seat, an installation rotating shaft column is fixedly connected to the upper surface of the rotating disc, a connection rotating shaft column is arranged on the upper surface of the installation rotating shaft column, and the connection rotating shaft column is in sliding fit with the installation rotating shaft column. The invention can carry out omnibearing maintenance on the propeller by arranging the rotating disc and the connecting rotating shaft column to place the propeller of the airplane in the screw hole on the connecting rotating shaft column for omnibearing rotation, does not need to manually swing the position of the propeller, improves the repairing efficiency, and can dismantle and replace connecting rotating shaft columns of different types by arranging the screwing bolt so as to adapt to the installation measures of propellers of different sizes.

Description

Device is repaired to propeller hub cambered surface of aircraft screw

Technical Field

The invention belongs to the technical field of propeller repair, and particularly relates to a propeller which is large in size.

Background

A propeller aircraft refers to an aircraft that converts the power of an engine into propulsive power with an air propeller. From birth of the first aircraft until the end of world war ii, almost all aircraft were propeller aircraft. In modern aircraft, besides supersonic aircraft and high subsonic trunk line passenger aircraft, propeller aircraft still plays an important role. Common features of both branch passenger aircraft and aircraft used in most general aviation are that the aircraft is not heavy and large in size, has a low flying speed and a low altitude, and requires good low speed and take-off and landing performance. Propeller aircraft can better accommodate these requirements.

The propeller of the airplane needs to be periodically overhauled due to long-term high-speed operation, maintenance personnel need to manually and frequently rotate the propeller on a machine tool to overhaul different positions when maintaining, the propeller is generally large in size, the method is particularly time-consuming and labor-consuming, and the problems that the propeller is generally large in size, the time-consuming and labor-consuming when maintaining traditional maintenance equipment is effectively solved, and the maintenance efficiency is low are solved.

Disclosure of Invention

The invention aims to provide a repair device for a cambered surface of a hub of an airplane propeller, which solves the problems that the traditional repair equipment consumes time and labor during repair and has low repair efficiency.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a repair device for a cambered surface of a hub of an airplane propeller, which comprises a sliding upright post, an upper installation round seat and a lower installation round seat and is characterized in that the upper installation round seat and the lower installation round seat are of cylinder structures, the sliding upright post is positioned on one side surface of the upper installation round seat and one side surface of the lower installation round seat, the upper installation round seat is positioned above the lower installation round seat, and one side surface of the lower installation round seat is provided with a driving motor;

the upper surface of installation circle seat is provided with the rolling disc down, rolling disc and installation circle seat normal running fit down, fixed surface is connected with the installation pivot post on the rolling disc, installation pivot post upper surface is provided with the connection pivot post, connect pivot post and installation pivot post sliding fit, place the aircraft screw in the screw hole of connecting the pivot post through setting up the rolling disc and connecting the pivot post and carry out the omnidirectional rotation, can carry out the omnidirectional maintenance to the screw, do not need the manual work to swing the position of screw, the efficiency of repairing has been improved.

Preferably, the inside screw hole that is provided with of connection pivot post, installation pivot post side is provided with the bolt of screwing, and the bolt of screwing passes installation pivot post, and the bolt of screwing is screw-thread fit with installation pivot post and connection pivot post, can dismantle the installation measure of changing the connection pivot post of different models in order to adapt to the screw of equidimension through setting up the bolt of screwing.

Preferably, a limit nut is arranged on the peripheral side face of the screwing bolt, and the limit nut is in threaded fit with the screwing bolt.

Preferably, a plurality of steel balls are arranged on the circumferential side surface of the rotating disc, an outer ring is arranged on the circumferential side surface of each steel ball, and the steel balls are in running fit with the rotating disc and the outer ring.

Preferably, driving motor one end is provided with motor shaft, motor shaft and driving motor normal running fit, and motor shaft week side is provided with female gear, female gear and motor shaft normal running fit, and motor shaft is located the inside of installation round seat down.

Preferably, the lower surface of the rotating disc is provided with an extending column, a sub gear is arranged on the peripheral side face of the extending column, and the sub gear is meshed with the female gear to drive the rotating disc to automatically rotate.

Preferably, go up the installation circle seat week side and be provided with the spliced pole, spliced pole one end fixedly connected with sliding block, a slip stand surface is provided with the second spout, sliding block and second spout sliding fit, the height of adjustable sliding block and last installation circle seat.

Preferably, a first sliding groove and a limiting triangular bolt are arranged on one side face of the sliding stand column, and the limiting triangular bolt penetrates through the first sliding groove to be in threaded fit with the sliding block to fix the position of the sliding block

Preferably, the water tank is arranged inside the upper mounting round seat, the packaging cover is arranged on the upper surface of the upper mounting round seat, the cross-sectional area of the packaging cover is matched with that of the water tank, and the packaging cover can be detached to inject water for cooling into the water tank when the water tank is used.

Preferably, the water tank both ends all are provided with communicating pipe and play water pump machine, go out water pump machine and communicating pipe electric connection, are linked together communicating pipe and water tank, go up installation circle seat lower surface and are provided with a plurality of drilling, and communicating pipe position suits with drilling, can use out water pump machine to spray the water of water tank from drilling to the screw maintenance department through communicating pipe when maintaining, provides the cooling and washs clastic effect.

The invention has the following beneficial effects:

1. according to the invention, the aircraft propeller is placed in the screw hole on the connecting rotating shaft column to rotate in all directions by arranging the rotating disc and the connecting rotating shaft column, so that the propeller can be overhauled in all directions without swinging the position of the propeller manually, and the repairing efficiency is improved.

2. The connecting rotating shaft column can be disassembled and replaced by connecting rotating shaft columns of different types by arranging the screwing bolts so as to adapt to mounting measures of propellers of different sizes.

3. According to the invention, the water outlet pump machine and the water tank are arranged in the upper mounting round seat 3, so that a maintenance part can be cooled and cleaned in the repairing process, and the effects of cooling and cleaning up chippings and dust are provided

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a front perspective view of the present invention;

FIG. 2 is a schematic bottom perspective view of the present invention;

FIG. 3 is a schematic view of a specific structure of a rotating disc according to the present invention;

FIG. 4 is a schematic view of the internal structure of the lower mounting round base according to the present invention;

FIG. 5 is a schematic view of the internal structure of the upper mounting round base according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below: 1. sliding the upright post; 2. connecting columns; 3. a round seat is arranged on the upper part; 4. connecting the rotating shaft column; 5. a circular base is arranged at the lower part; 6. rotating the disc; 7. a drive motor; 8. screwing the bolt; 9. a first chute; 10. a limit triangular bolt; 11. a slider; 12. a second chute; 13. an outer ring; 14. steel balls; 15. an epitaxial pillar; 16. a sub-gear; 17. a female gear; 18. a motor shaft; 19. a limit nut; 20. mounting a rotating shaft column; 21. a water outlet pump machine; 22. a package cover; 23. a water tank; 24. a communicating pipe; 25. and (6) drilling.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

Referring to fig. 1-4, the invention is a repair device for a cambered surface of a hub of an airplane propeller, which comprises a sliding upright post 1, an upper installation round seat 3 and a lower installation round seat 5, and is characterized in that the upper installation round seat 3 and the lower installation round seat 5 are both in a cylinder structure, the sliding upright post 1 is positioned on one side surface of the upper installation round seat 3 and the lower installation round seat 5, the upper installation round seat 3 is positioned above the lower installation round seat 5, and a driving motor 7 is arranged on one side surface of the lower installation round seat 5;

the upper surface of installation circle seat 5 is provided with rolling disc 6 down, rolling disc 6 and the 5 normal running fit of installation circle seat down, fixed surface is connected with installation pivot post 20 on the rolling disc 6, installation pivot post 20 upper surface is provided with connects pivot post 4, connect pivot post 4 and installation pivot post 20 sliding fit, place the aircraft screw in the screw hole of connecting pivot post 4 through setting up rolling disc 6 and connecting pivot post 4 and carry out the omnidirectional rotation, can carry out the omnidirectional maintenance to the screw, do not need the manual work to carry out the position of swing screw, the efficiency of repairing has been improved.

Furthermore, the inside screw hole that is provided with of connection pivot post 4, a side of installation pivot post 20 is provided with the bolt 8 of screwing, and the bolt 8 of screwing passes installation pivot post 20, and the bolt 8 of screwing is screw-thread fit with installation pivot post 20 and connection pivot post 4, can dismantle the installation measure of changing the connection pivot post 4 of different models in order to adapt to the screw of equidimension not with connection pivot post 4 through setting up the bolt 8 of screwing.

Furthermore, a limit nut 19 is arranged on the peripheral side surface of the tightening bolt 8, and the limit nut 19 is in threaded fit with the tightening bolt 8.

Furthermore, a plurality of steel balls 14 are arranged on the peripheral side surface of the rotating disc 6, an outer ring 14 is arranged on the peripheral side surface of each steel ball 14, and each steel ball 14 is in running fit with the rotating disc 6 and the outer ring 14.

Further, one end of the driving motor 7 is provided with a motor rotating shaft 18, the motor rotating shaft 18 is in running fit with the driving motor 7, a female gear 17 is arranged on the peripheral side surface of the motor rotating shaft 18, the female gear 17 is in running fit with the motor rotating shaft 18, and the motor rotating shaft 18 is located inside the lower mounting round base 5.

Furthermore, an extension column 15 is arranged on the lower surface of the rotating disc 6, a sub gear 16 is arranged on the peripheral side surface of the extension column 15, and the sub gear 16 is meshed with a female gear 17 to drive the rotating disc 6 to rotate automatically.

Furthermore, the circumferential side of the upper mounting round seat 3 is provided with a connecting column 2, one end of the connecting column 2 is fixedly connected with a sliding block 11, one surface of the sliding column 1 is provided with a second sliding groove 12, the sliding block 11 is in sliding fit with the second sliding groove 12, and the height of the sliding block 11 and the upper mounting round seat 3 can be adjusted.

Further, a first sliding groove 9 and a limiting triangular bolt 10 are arranged on one side face of the sliding upright 1, and the limiting triangular bolt 10 penetrates through the first sliding groove 9 to be in threaded fit with the sliding block 11 to fix the position of the sliding block 11.

Furthermore, a water tank 23 is arranged inside the upper mounting round seat 3, a packaging cover 22 is arranged on the upper surface of the upper mounting round seat 3, the cross-sectional area of the packaging cover 22 is matched with that of the water tank 23, and the packaging cover 22 can be detached to inject cooling water into the water tank 23 when the cooling water heater is used.

Furthermore, both ends of the water tank 23 are provided with a communicating pipe 24 and a water outlet pump 21, the water outlet pump 21 is electrically connected with the communicating pipe 24, the communicating pipe 24 is communicated with the water tank 23, the lower surface of the upper mounting round base 3 is provided with a plurality of drill holes 25, the position of the communicating pipe 24 is matched with the drill holes 25, when maintenance is carried out, the water outlet pump 21 can be used for spraying water in the water tank 23 from the drill holes 25 through the communicating pipe 24, and the functions of cooling and cleaning scraps are provided.

The first embodiment is as follows: the embodiment shown in fig. 1-4 is a use method of a hub cambered surface repairing device of an airplane propeller: this repair device moves sliding block 11 and will go up installation circle seat 3 and promote when using to place the aircraft screw that needs to repair on connecting pivot post 4, further sliding block 11 slides and makes the aircraft screw install at last installation circle seat 3 and install between circle seat 5 down, and the spacing triangular bolt 10 of rotating presss from both sides tight fixedly with sliding block 11 position, starts driving motor 7 and drives rolling disc 6 rotation through female gear 17 and pinion 16 meshing mutually, makes the screw and then carries out omnidirectional repair operation.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for repairing the cambered surface of a hub of an airplane propeller comprises a sliding upright post (1), an upper installation round seat (3) and a lower installation round seat (5), and is characterized in that the upper installation round seat (3) and the lower installation round seat (5) are of cylinder structures, the sliding upright post (1) is positioned on one side surface of the upper installation round seat (3) and one side surface of the lower installation round seat (5), the upper installation round seat (3) is positioned above the lower installation round seat (5), and one side surface of the lower installation round seat (5) is provided with a driving motor (7);

the upper surface of the lower mounting circular seat (5) is provided with a rotating disc (6), the rotating disc (6) is in rotating fit with the lower mounting circular seat (5), the upper surface of the rotating disc (6) is fixedly connected with a mounting rotating shaft column (20), the upper surface of the mounting rotating shaft column (20) is provided with a connecting rotating shaft column (4), and the connecting rotating shaft column (4) is in sliding fit with the mounting rotating shaft column (20);

a threaded hole is formed in the connecting rotating shaft column (4), a screwing bolt (8) is arranged on one side surface of the mounting rotating shaft column (20), the screwing bolt (8) penetrates through the mounting rotating shaft column (20), and the screwing bolt (8) is in threaded fit with the mounting rotating shaft column (20) and the connecting rotating shaft column (4);

a water tank (23) is arranged in the upper mounting round seat (3), a packaging cover (22) is arranged on the upper surface of the upper mounting round seat (3), and the cross-sectional area of the packaging cover (22) is matched with that of the water tank (23);

the water tank (23) both ends all are provided with communicating pipe (24) and play water pump machine (21), go out water pump machine (21) and communicating pipe (24) electric connection, and communicating pipe (24) are linked together with water tank (23), go up installation round seat (3) lower surface and be provided with a plurality of drilling (25), and communicating pipe (24) position suits with drilling (25).

2. A hub camber repair device for an aircraft propeller according to claim 1, wherein: and a limit nut (19) is arranged on the peripheral side surface of the screwed bolt (8), and the limit nut (19) is in threaded fit with the screwed bolt (8).

3. A hub camber repair device for an aircraft propeller according to claim 1, wherein: the steel ball bearing is characterized in that a plurality of steel balls (14) are arranged on the peripheral side face of the rotating disc (6), outer rings (14) are arranged on the peripheral side faces of the steel balls (14), and the steel balls (14), the rotating disc (6) and the outer rings (14) are in running fit.

4. A hub camber repair device for an aircraft propeller according to claim 1, wherein: driving motor (7) one end is provided with motor shaft (18), motor shaft (18) and driving motor (7) normal running fit, and motor shaft (18) week side is provided with female gear (17), female gear (17) and motor shaft (18) normal running fit, and motor shaft (18) are located the inside of installing round seat (5) down.

5. A hub camber repair arrangement for an aircraft propeller according to claim 4, wherein: an extension column (15) is arranged on the lower surface of the rotating disc (6), a sub gear (16) is arranged on the peripheral side surface of the extension column (15), and the sub gear (16) is meshed with the female gear (17).

6. A hub camber repair device for an aircraft propeller according to claim 1, wherein: go up installation round seat (3) week side and be provided with spliced pole (2), spliced pole (2) one end fixedly connected with sliding block (11), sliding column (1) one surface is provided with second spout (12), sliding block (11) and second spout (12) sliding fit.

7. A hub camber repair arrangement for an aircraft propeller according to claim 6, wherein: a first sliding groove (9) and a limiting triangular bolt (10) are arranged on one side face of the sliding upright (1), and the limiting triangular bolt (10) penetrates through the first sliding groove (9) to be in threaded fit with the sliding block (11).