Dismounting tool for exhaust shell of aircraft air turbine starter

Abstract

The utility model relates to the technical field of special tools for airplane air turbine starters, in particular to an airplane air turbine starter exhaust shell dismantling tool which comprises a tool base, a machine body shell and an exhaust shell, a forward and reverse motor is installed on the left side of the tool base, a driving screw is rotationally connected into the tool base, and a screw rod is installed in the machine body shell. The end, extending out of the left side of the tool base, of the driving screw rod and the output end of the forward and reverse motor are fixedly provided with gears which are connected in a meshed mode respectively, the outer side of the driving screw rod is sleeved with a screw rod sliding sleeve in a threaded mode, and sliding rails are fixed to the front side and the rear side of the left end of the top of the tool base. The exhaust shell can be dismantled only by one person, the machine body shell and the exhaust shell can be rapidly separated, operation is convenient, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of special tooling for aircraft air turbine starters, in particular to a tooling for removing an exhaust casing of an aircraft air turbine starter. Background Art

[0002] The aircraft air turbine starter is mainly composed of an inlet guide vane, a turbine impeller, a moving impeller, an outlet guide vane, a rotor bearing support, an outer sleeve, a positioning ring, a positioning plate, etc. The working principle of the aircraft air turbine starter is to use wind force to rotate the turbine impeller and drive the rotor to generate power. The wind enters the turbine impeller from the inlet guide vane, causing the turbine impeller and the moving impeller to rotate relative to each other, transferring the kinetic energy to the mechanical drive system, thereby starting the aircraft's turbine engine.

[0003] The traditional way to dismantle the exhaust casing of an aircraft air turbine starter is to place the starter as a whole on a fixed bracket, remove the flange bolts connecting the casing one by one, and then use the combined efforts of multiple people to separate the casing from the fuselage and place it in a designated position. Due to the large size of the aircraft air turbine starter, this method is time-consuming, labor-intensive and dangerous, which greatly reduces work efficiency.

[0004] Therefore, it is particularly important to design an aircraft air turbine starter exhaust casing removal tool to change the above-mentioned technical defects and improve overall practicality. Utility Model Content

[0005] The utility model aims to provide a tool for removing the exhaust casing of an aircraft air turbine starter, so as to solve the problems raised in the above-mentioned background technology.

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

[0007] A tool for removing the exhaust casing of an aircraft air turbine starter, comprising a tool base, a fuselage casing and an exhaust casing, a forward and reverse motor being installed on the left side of the tool base, a driving screw being rotatably connected inside the tool base, gears meshing with each other being fixed to one end of the driving screw extending out of the left side of the tool base and the output end of the forward and reverse motor respectively, a screw sleeve being threadedly sleeved on the outer side of the driving screw, slide rails being fixed on both the front and rear sides of the left end of the top of the tool base, a sliding seat being slidably connected to the outer side of the slide rail, a fixed support frame being installed on the right side of the top of the tool base, a fixed casing bracket being arranged on the top of the fixed support frame, and a casing auxiliary removal mechanism being arranged on the left side of the top of the tool base;

[0008] The shell auxiliary removal mechanism includes a movable support frame, a connecting socket is provided on the top of the movable support frame, a movable shell bracket is provided above the connecting socket, and a connecting block used in conjunction with the connecting socket is integrally designed at the bottom of the movable shell bracket. Limiting holes are symmetrically provided inside the connecting socket and the connecting block, and limiting plug rods are inserted between multiple groups of limiting plug holes located in a straight line. Folding support plates are provided on the top of the front and rear sides of the movable shell bracket, and an electric push rod is installed on the inner side of the folding support plate. The telescopic end of the electric push rod slides and extends to the inner side of the movable shell bracket and is provided with a rubber pressure head, and hook ears are respectively fixed to both ends of the front and rear sides of the top of the movable shell bracket.

[0009] As a preferred solution of the utility model, a controller is arranged on the left side of the tooling base, wherein the controller and the forward and reverse motors are connected by wires, and the connection method is electrical connection. A controller is arranged inside the connecting block, wherein the controller and the electric push rod are connected by wires, and the connection method is electrical connection. At the same time, the controller is wirelessly connected to the remote control via a wireless network.

[0010] As a preferred solution of the utility model, a rectangular groove extending along the length direction of the tooling base is opened inwardly at the top of the tooling base, and both ends of the driving screw are rotatably connected to the inside of the rectangular groove through a bearing seat.

[0011] As a preferred solution of the utility model, the fixed shell bracket and the movable shell bracket are both designed as arc-shaped bent plate structures opening upward, the fuselage shell is placed inside the fixed shell bracket, and the exhaust shell is placed inside the movable shell bracket.

[0012] As a preferred solution of the utility model, the bottom of the movable support frame is fixedly connected to the screw sleeve, the connection between the movable support frame and the tooling base is a sliding connection, and the bottom of the side wall of the movable support frame is fixedly connected to the sliding seat through a support block.

[0013] As a preferred solution of the utility model, the connection between the connecting socket and the connecting plug is a plug-in connection, and the internal structure size of the connecting socket is adapted to the external structure size of the connecting plug.

[0014] As a preferred solution of the utility model, the connection socket and the movable housing bracket are designed to be detachable.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the utility model, by providing an aircraft air turbine starter exhaust casing removal tool, only one person is required to complete the removal of the exhaust casing, and the fuselage casing and the exhaust casing can be quickly separated, which is convenient for operation and improves work efficiency.

[0017] 2. In the utility model, by setting up an aircraft air turbine starter exhaust casing removal tool, the exhaust casing can be hoisted after detachment and placed at a designated position through a hoist, without the need for manpower or moving to a hoist bracket for movement, thus saving time and being more convenient for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a demo structural diagram of the exhaust housing of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 3 This is a structural diagram of the shell auxiliary removal mechanism of the utility model.

[0021] In the figure: 1. tooling base; 2. body shell; 3. exhaust shell; 4. forward and reverse motor; 401. drive screw; 402. gear; 403. screw sleeve; 5. slide rail; 501. sliding seat; 6. fixed support frame; 601. fixed shell bracket; 7. shell auxiliary removal mechanism; 701. movable support frame; 702. connecting socket; 703. movable shell bracket; 704. connecting plug; 705. limit socket; 706. limit plug; 707. folding support plate; 708. electric push rod; 709. rubber pressure head; 710. hook ear. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0026] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0027] A tool for removing an exhaust casing of an aircraft air turbine starter comprises a tool base 1, a fuselage casing 2 and an exhaust casing 3. A forward and reverse motor 4 is installed on the left side of the tool base 1. Slide rails 5 are fixed to both the front and rear sides of the left end of the top of the tool base 1. A sliding seat 501 is slidably connected to the outer side of the slide rail 5, so that the fuselage casing 2 and the exhaust casing 3 are more stable when separated. A fixed support frame 6 is installed on the right side of the top of the tool base 1. A fixed casing bracket 601 is arranged on the top of the fixed support frame 6. A casing auxiliary removal mechanism 7 is arranged on the left side of the top of the tool base 1.

[0028] The fixed shell support 601 and the movable shell support 703 are both designed with an arc-shaped bent plate structure with an opening upward, which fits the shell shape more closely and is placed more stably. The fuselage shell 2 is placed inside the fixed shell support 601, and the exhaust shell 3 is placed inside the movable shell support 703.

[0029] In this embodiment, please refer to Figure 2 The tooling base 1 is internally rotatably connected with a driving screw 401, and one end of the driving screw 401 extending out of the left side of the tooling base 1 and the output end of the forward and reverse motor 4 are respectively fixed with mutually meshing gears 402, and the outer thread of the driving screw 401 is sleeved with a screw sleeve 403, and the forward and reverse motor 4 is started to drive the meshing rotation of the two sets of gears 402, so that the driving screw 401 rotates synchronously, and finally the thread drives the screw sleeve 403 to move slowly horizontally to drive the movable support frame 701 to move in the opposite direction of the fixed support frame 6, so that the exhaust shell 3 is separated from the fuselage shell 2;

[0030] The top of the tooling base 1 is provided with a rectangular groove extending along the length direction of the tooling base 1 , and both ends of the driving screw 401 are rotatably connected to the inside of the rectangular groove through the bearing seat, so that the driving screw 401 drives the screw sleeve 403 to translate stably.

[0031] In this embodiment, please refer to Figure 3 The shell auxiliary removal mechanism 7 includes a movable support frame 701, a connection socket 702 is arranged on the top of the movable support frame 701, a movable shell bracket 703 is arranged above the connection socket 702, and a connection plug 704 used in conjunction with the connection socket 702 is integrally designed at the bottom of the movable shell bracket 703. The connection socket 702 and the connection plug 704 are both symmetrically provided with limited position holes 705 in the front and back, and a limit plug rod 706 is inserted between the multiple groups of limit plug holes 705 located in a straight line. The movable shell bracket 703 A folding support plate 707 is provided at the top of both the front and rear sides, and an electric push rod 708 is installed on the inner side of the folding support plate 707. The telescopic end of the electric push rod 708 slides and extends to the inner side of the movable shell bracket 703 and is provided with a rubber pressure head 709. The electric push rod 708 is started so that its telescopic end drives the rubber pressure head 709 to approach the outer side of the exhaust shell 3 until the two groups of rubber pressure heads 709 clamp and fix the exhaust shell 3. The two ends of the front and rear sides of the top of the movable shell bracket 703 are respectively fixed with hook ears 710 for fast lifting and movement;

[0032] A controller is arranged on the left side of the tooling base 1, wherein the controller is connected to the forward and reverse motors 4 through wires, and the connection method is electrical connection. A controller is arranged inside the connecting block 704, wherein the controller is connected to the electric push rod 708 through wires, and the connection method is electrical connection. At the same time, the controller is wirelessly connected to the remote controller through a wireless network. The bottom of the movable support frame 701 is fixedly connected to the screw sleeve 403, and the connection method between the movable support frame 701 and the tooling base 1 is a sliding connection. The bottom of the side wall of the movable support frame 701 is fixedly connected to the sliding seat 501 through a support block. The connection method between the connecting socket 702 and the connecting block 704 is a plug-in connection. The internal structure size of the connecting socket 702 is adapted to the external structure size of the connecting block 704, and the connecting socket 702 and the movable shell bracket 703 are designed to be detachable.

[0033] The working process of the utility model is as follows: when it is necessary to dismantle the exhaust casing of the aircraft air turbine starter, the starter is moved as a whole to the top of the tooling base 1 by means of a lifting device, at which time the fixed casing bracket 601 and the movable casing bracket 703 are in a close state, and then the starter is slowly placed as a whole so that the fuselage casing 2 is placed inside the fixed casing bracket 601, and the exhaust casing 3 is placed inside the movable casing bracket 703, then the lifting device is removed and the flange bolts used to connect the fixed fuselage casing 2 and the exhaust casing 3 are taken out one by one, at which time the electric push rod 708 is started so that its telescopic end drives the rubber pressure head 709 to approach the outside of the exhaust casing 3 until the two sets of rubber pressure heads 709 clamp and fix the exhaust casing 3, and after the fixing is completed, the forward and reverse motors 4 are started to drive the two sets of gears The meshing rotation of the wheel 402 causes the driving screw 401 to rotate synchronously, and finally the thread drives the screw sleeve 403 to move slowly horizontally to drive the movable support frame 701 to move in the opposite direction to the fixed support frame 6, so that the exhaust shell 3 is separated from the fuselage shell 2. After the separation is completed, the staff hangs the hook of the lifting device inside the hook ear 710, and pulls out the limiting plug rod 706 originally used to fix the movable shell bracket 703 inside the connecting socket 702, so that the movable shell bracket 703 is moved to the specified position with the exhaust shell 3, and finally the exhaust shell 3 is removed from the inside of the movable shell bracket 703 and placed. Only one person is needed to complete the removal of the exhaust shell, and the fuselage shell and the exhaust shell can be quickly separated, which is convenient for operation and improves work efficiency.

[0034] 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. A tool for removing an exhaust casing of an aircraft air turbine starter, comprising a tool base (1), a fuselage casing (2) and an exhaust casing (3), characterized in that: A forward and reverse motor (4) is installed on the left side of the tooling base (1), and a driving screw (401) is rotatably connected inside the tooling base (1). One end of the driving screw (401) extending out of the left side of the tooling base (1) and the output end of the forward and reverse motor (4) are respectively fixed with gears (402) meshing with each other, and a screw sleeve (403) is threadedly sleeved on the outer side of the driving screw (401). Slide rails (5) are fixed on both the front and rear sides of the left end of the top of the tooling base (1), and a sliding seat (501) is slidably connected on the outer side of the slide rail (5). A fixed support frame (6) is installed on the right side of the top of the tooling base (1), and a fixed shell bracket (601) is provided on the top of the fixed support frame (6). A shell auxiliary removal mechanism (7) is provided on the left side of the top of the tooling base (1); The shell auxiliary removal mechanism (7) comprises a movable support frame (701), a connection socket (702) is arranged on the top of the movable support frame (701), a movable shell support seat (703) is arranged above the connection socket (702), and a connection plug block (704) for use with the connection socket (702) is integrally designed at the bottom of the movable shell support seat (703), and the connection socket (702) and the connection plug block (704) are both provided with limited position plug holes (705) symmetrically arranged in front and back, and are located in a straight line. A limiting plug rod (706) is inserted between the multiple groups of the limiting plug holes (705) on the line, and the tops of the front and rear sides of the movable shell support (703) are provided with folding support plates (707), and the inner side of the folding support plate (707) is installed with an electric push rod (708), and the telescopic end of the electric push rod (708) slides and extends to the inner side of the movable shell support (703) and is provided with a rubber pressure head (709), and the two ends of the front and rear sides of the top of the movable shell support (703) are respectively fixed with hook ears (710).

2. The aircraft air turbine starter exhaust casing removal tool according to claim 1, characterized in that: A controller is arranged on the left side of the tooling base (1), wherein the controller is connected to the forward and reverse motors (4) via wires, and the connection method is electrical connection. A controller is arranged inside the connecting plug block (704), wherein the controller is connected to the electric push rod (708) via wires, and the connection method is electrical connection. At the same time, the controller is wirelessly connected to the remote controller via a wireless network.

3. The aircraft air turbine starter exhaust casing removal tool according to claim 1, characterized in that: A rectangular groove extending along the length direction of the tooling base (1) is provided inwardly at the top of the tooling base (1), and both ends of the driving screw rod (401) are rotatably connected to the inside of the rectangular groove via a bearing seat.

4. The aircraft air turbine starter exhaust casing removal tool according to claim 1, characterized in that: The fixed shell support (601) and the movable shell support (703) are both designed as arc-shaped curved plate structures with an opening facing upward; the fuselage shell (2) is placed inside the fixed shell support (601), and the exhaust shell (3) is placed inside the movable shell support (703).

5. The aircraft air turbine starter exhaust casing removal tool according to claim 1, characterized in that: The bottom of the movable support frame (701) is fixedly connected to the screw sleeve (403), the movable support frame (701) is connected to the tooling base (1) in a sliding manner, and the bottom of the side wall of the movable support frame (701) is fixedly connected to the sliding seat (501) via a support block.

6. The aircraft air turbine starter exhaust casing removal tool according to claim 1, characterized in that: The connection mode between the connection socket (702) and the connection plug block (704) is a plug-in connection, and the internal structure size of the connection socket (702) is compatible with the external structure size of the connection plug block (704).

7. The aircraft air turbine starter exhaust casing removal tool according to claim 1, characterized in that: The connection socket (702) and the movable housing bracket (703) are designed to be detachable.

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