Multi-angle pipeline split charging device for special part of aero-engine

Abstract

The aero-engine special part multi-angle pipeline split charging device comprises a first-stage lever mechanism and a second-stage lever mechanism, one end of the first-stage lever mechanism is an operation end, and the other end of the first-stage lever mechanism is connected with the second-stage lever mechanism; and the first-stage lever mechanism and the second-stage lever mechanism are detachably connected through a first plug-in type structure with an adjustable connection angle. The problems that when an engine inner-layer pipeline and a narrow-space pipeline are subpackaged in the prior art, especially when the pipeline is subpackaged in the whole engine test run process, a traditional solid-head wrench is used, time and labor are wasted, efficiency is low, and the engine maintenance efficiency is seriously affected are solved.

Description

Technical Field

[0001] The invention relates to the field of aircraft engine pipeline system maintenance devices, in particular to a multi-angle pipeline subassembly device for special parts of an aircraft engine. Background Art

[0002] An aircraft engine's fuel, oil, air, and control systems are all connected and operated through distinct piping systems. Therefore, piping assembly is a crucial step in aircraft engine maintenance. The piping within each system is relatively concentrated and compact, sometimes arranged in multiple layers or nestled between engine accessories. Pipes within each system, and between pipes and accessories, are mostly connected via fittings. Therefore, the key to piping assembly is how to quickly and efficiently disassemble and assemble fittings within confined spaces and multiple layers of piping.

[0003] Currently, the most widely used tools for disassembling and assembling engine pipe joints are ordinary flat wrenches of different sizes. Ordinary wrenches are effective for disassembling pipe joints distributed on the outer surface of the engine in relatively spacious areas. However, they cannot be directly disassembled for joints located in narrow spaces or inside multi-layer pipes. The obstructing pipes or accessories need to be removed. Disassembly is time-consuming, labor-intensive, and inefficient. In addition, the wrench is prone to slippage, which can easily damage the engine and cause injuries to the operator.

[0004] In addition, for the internal pipeline oil leakage and accessory replacement failures encountered during the engine test, the operating space becomes smaller due to the obstruction of the test bench, and the disassembly and assembly efficiency of ordinary flat-head wrenches is even lower.

[0005] In some engine test runs and troubleshooting, in order to eliminate the oil leakage of an inner pipe joint, it is often necessary to first disassemble 3-4 joints around the joint, or even remove part of the pipe to complete the oil leakage troubleshooting of this joint.

[0006] In summary, the problem with the existing technology is that when assembling the inner layer pipelines of the engine and the pipelines in a small space, especially when assembling the pipelines during the whole engine test run, the traditional flat-end wrench is used, which is time-consuming, labor-intensive and inefficient, seriously affecting the engine maintenance efficiency. At present, the domestic market does not have a complete set of special pipeline assembly tools corresponding to the assembly of the inner layer pipelines of the engine, the assembly of pipelines in a small space, and the troubleshooting of pipelines during the whole engine test run. Summary of the Invention

[0007] The purpose of the present invention is to provide a multi-angle pipeline assembly device for special parts of an aircraft engine, so as to solve the problem that the existing assembly of the inner layer pipelines of the engine and the pipelines in a narrow space, especially when assembling the pipelines during the engine test run, uses traditional flat-end wrenches, which is time-consuming, labor-intensive, and inefficient, and seriously affects the engine maintenance efficiency.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions: A multi-angle pipeline subassembly device for special parts of an aircraft engine includes a primary lever mechanism and a secondary lever mechanism. One end of the primary lever mechanism is an operating end, and the other end of the primary lever mechanism is connected to the secondary lever mechanism. The primary lever mechanism and the secondary lever mechanism are detachably connected via a plug-in structure with a first adjustable connection angle.

[0009] When in use, the working end of the first-level lever mechanism is inserted into the catheter nut, and the first-level lever mechanism transmits the torque to the second-level lever mechanism. Since the second-level lever mechanism and the first-level lever mechanism are detachably connected through a plug-in structure with a first adjustable connection angle, the posture and angle of the second-level lever mechanism can be adjusted and set according to the pipeline layout and space size. When the second-level lever mechanism is rotated by hand, the second-level lever mechanism and the first-level lever mechanism work together to act on the catheter nut to rotate it, so that the catheter nut can be screwed quickly and conveniently, and the corresponding pipeline can be disassembled and assembled without removing the blocking pipeline.

[0010] As a further preferred embodiment of the present invention, lever safety holes are provided in the middle of the primary lever mechanism and the secondary lever mechanism.

[0011] The lever safety hole can prevent the primary lever mechanism and the secondary lever mechanism from slipping during operation.

[0012] As a further preferred embodiment of the present invention, the structure of the working end of the primary lever mechanism is an inner plum blossom hole design structure with reinforcing ribs.

[0013] When the operating end of the primary lever mechanism can directly contact the spatial position of the pipe nut, the structure can be used to conveniently and quickly insert the pipe nut using the inner plum blossom hole design structure with reinforcing ribs.

[0014] As a further preference of the present invention, the inner plum blossom hole design structure with reinforcing ribs is also provided with a working end socket, and the outer wall of one end of the working end socket connected to the inner plum blossom hole design structure with reinforcing ribs is provided with an outer plum blossom structure of the working end socket adapted to the inner plum blossom hole design structure with reinforcing ribs, and the other end of the working end socket is provided with an inner plum blossom structure of the working end socket.

[0015] When the working end of the primary lever mechanism cannot directly contact the spatial position of the pipe nut, a corresponding auxiliary mechanism needs to be set up. The so-called auxiliary mechanism is the working end socket, one end of which is connected to the primary lever mechanism, and the other end is used to connect with the pipe nut.

[0016] As a further preferred embodiment of the present invention, a socket safety hole is provided in the middle of the working end socket.

[0017] The socket safety hole can prevent the socket at the working end from slipping during operation.

[0018] As a further preferred embodiment of the present invention, the first plug-in structure with adjustable connection angle includes a first inner plum blossom hole for connection and a first outer plum blossom structure for connection. The first inner plum blossom hole for connection is opened at one end of the first-level lever mechanism, and the first outer plum blossom structure for connection is arranged at one end of the second-level lever mechanism. The first inner plum blossom hole for connection and the first outer plum blossom structure for connection are adapted to each other.

[0019] The minimum value of the angle adjustment between the first connecting inner plum blossom hole and the first connecting outer plum blossom structure is 30°.

[0020] As a further preferred embodiment of the present invention, a third-stage lever mechanism is further provided at the other end of the second-stage lever mechanism connected to the first-stage lever mechanism. The third-stage lever mechanism and the second-stage lever mechanism are detachably connected via a plug-in structure with a second adjustable connection angle, and a lever safety hole is provided in the middle of the three-stage lever mechanism.

[0021] The three-stage lever mechanism is only used when the torque of the second-stage lever mechanism is insufficient or the lever posture needs to be adjusted for a second time according to the pipeline layout and space size. When in use, the working end of the first-stage lever mechanism is inserted into the catheter nut, and the first-stage lever mechanism transmits the torque to the second-stage lever mechanism. The second-stage lever mechanism then adjusts its posture according to the pipeline layout and space size, and cooperates with the first-stage lever mechanism to push the catheter nut to rotate, or the second-stage lever mechanism adjusts its posture and transmits the torque to the third-stage lever mechanism. The third-stage lever mechanism adjusts its posture again according to the pipeline layout and space size, and cooperates with the first-stage lever mechanism and the second-stage lever mechanism to push the catheter nut to rotate, thereby realizing the disconnection or tightening assembly of the catheter nut and the connected product. The lever safety hole here can prevent the three-stage lever mechanism from slipping during operation.

[0022] As a further preference of the present invention, the second plug-in structure with adjustable connection angle includes a second inner plum blossom hole for connection and a second outer plum blossom structure for connection, the second inner plum blossom hole for connection is opened at one end of the three-stage lever mechanism, and the second outer plum blossom structure for connection is arranged at one end of the two-stage lever mechanism, and the second inner plum blossom hole for connection and the second outer plum blossom structure for connection are adapted to each other.

[0023] The minimum value of the angle adjustment of the plug-in structure of the second adjustable connection angle is also 30°.

[0024] As a further preferred embodiment of the present invention, the structure of the working end of the primary lever mechanism is an inner plum blossom hole design structure with reinforcing ribs.

[0025] When the operating end of the primary lever mechanism can directly contact the spatial position of the pipe nut, the structure can be used to conveniently and quickly insert the pipe nut using the inner plum blossom hole design structure with reinforcing ribs.

[0026] As a further preference of the present invention, the inner plum blossom hole design structure with reinforcing ribs is also provided with a working end socket, and the outer wall of one end of the working end socket connected to the inner plum blossom hole design structure with reinforcing ribs is provided with an outer plum blossom structure of the working end socket adapted to the inner plum blossom hole design structure with reinforcing ribs, and the other end of the working end socket is provided with an inner plum blossom structure of the working end socket.

[0027] When the working end of the primary lever mechanism cannot directly contact the spatial position of the pipe nut, a corresponding auxiliary mechanism is required. The so-called auxiliary mechanism is a working end socket, one end of which is connected to the primary lever mechanism and the other end is used to connect to the pipe nut. Compared with the existing technology, the present invention can achieve at least one of the following beneficial effects: 1. It solves the problem of using traditional flat-end wrenches to install the inner layer pipelines of the engine and pipelines in narrow spaces, especially during the engine test run. It is time-consuming, labor-intensive, and inefficient, which seriously affects the efficiency of engine maintenance.

[0028] 2. The lever can be adjusted at multiple angles according to the pipeline layout and space size to adapt to inner pipelines and narrow space operations.

[0029] 3. The lever safety hole can prevent the first and second lever mechanisms from slipping during operation.

[0030] 4. The lever safety hole can prevent the three-stage lever mechanism from slipping during operation.

[0031] 5. The safety hole of the socket can prevent the socket from slipping during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the present invention.

[0033] Figure 2 This is a schematic diagram of the structure after the working end socket is added to the inner plum blossom hole design structure with reinforcing ribs of the present invention.

[0034] Figure 3 This is a schematic diagram of the structure of the present invention after adding a three-stage lever mechanism.

[0035] Figure 4 This is a structural diagram of the present invention after a three-stage lever mechanism is added and a working end socket is added to the inner plum blossom hole design structure with reinforcing ribs.

[0036] Figure 5 It is a simplified diagram of the primary lever mechanism of the present invention.

[0037] Figure 6 Schematic diagram of the secondary lever mechanism of the present invention.

[0038] Figure 7 It is a structural schematic diagram of the working end socket of the present invention. DETAILED DESCRIPTION

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0041] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0043] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is typically placed when in use, or are the orientations or positional relationships commonly understood by those skilled in the art. These terms are intended only to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0044] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances. Specific embodiment 1: Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 A multi-angle pipeline subassembly device for special parts of an aircraft engine is shown, comprising a first-level lever mechanism 1 and a second-level lever mechanism 2. One end of the first-level lever mechanism 1 is an operating end, and the other end of the first-level lever mechanism 2 is connected to the second-level lever mechanism 2. The first-level lever mechanism 1 and the second-level lever mechanism 2 are detachably connected via a plug-in structure with a first adjustable connection angle.

[0046] When in use, the working end of the first-level lever mechanism is inserted into the catheter nut, and the first-level lever mechanism transmits the torque to the second-level lever mechanism. Since the second-level lever mechanism and the first-level lever mechanism are detachably connected through a plug-in structure with a first adjustable connection angle, the posture and angle of the second-level lever mechanism can be adjusted and set according to the pipeline layout and space size. When the second-level lever mechanism is rotated by hand, the second-level lever mechanism and the first-level lever mechanism work together to act on the catheter nut to rotate it, so that the catheter nut can be screwed quickly and conveniently, and the corresponding pipeline can be disassembled and assembled without removing the blocking pipeline. Specific embodiment 2: This embodiment further illustrates the primary lever mechanism 1 and the secondary lever mechanism 2 based on the specific embodiment 1. The middle portions of the primary lever mechanism 1 and the secondary lever mechanism 2 are both provided with lever safety holes 3 .

[0048] The lever safety hole can prevent the primary lever mechanism and the secondary lever mechanism from slipping during operation. Specific embodiment 3: This embodiment further illustrates the primary lever mechanism 1 based on the specific embodiment 1. The structure of the working end of the primary lever mechanism 1 is an inner plum blossom hole design structure 11 with reinforcing ribs.

[0050] When the operating end of the primary lever mechanism can directly contact the spatial position of the pipe nut, the structure can be used to conveniently and quickly insert the pipe nut using the inner plum blossom hole design structure with reinforcing ribs. Specific embodiment 4: This embodiment further illustrates the inner plum blossom hole design structure 11 with reinforcement ribs on the basis of specific embodiment 3. The inner plum blossom hole design structure 11 with reinforcement ribs is also provided with a working end socket 4. The outer wall of one end of the working end socket 4 connected to the inner plum blossom hole design structure 11 with reinforcement ribs is provided with an outer plum blossom structure of the working end socket adapted to the inner plum blossom hole design structure 11 with reinforcement ribs, and the other end of the working end socket 4 is provided with an inner plum blossom structure of the working end socket.

[0052] When the working end of the primary lever mechanism cannot directly contact the spatial position of the pipe nut, a corresponding auxiliary mechanism needs to be set up. The so-called auxiliary mechanism is the working end socket, one end of which is connected to the primary lever mechanism, and the other end is used to connect with the pipe nut. Specific embodiment 5: This embodiment further illustrates the working end socket 4 on the basis of the specific embodiment 4. A socket safety hole 41 is provided in the middle of the working end socket 4.

[0054] The socket safety hole can prevent the socket at the working end from slipping during operation. Specific embodiment 6: This embodiment further illustrates the plug-in structure with a first adjustable connection angle based on the specific embodiment 1. The plug-in structure with the first adjustable connection angle includes a first connection inner plum blossom hole 12 and a first connection outer plum blossom structure. The first connection inner plum blossom hole 12 is provided at one end of the primary lever mechanism 1, and the first connection outer plum blossom structure is provided at one end of the secondary lever mechanism 2. The first connection inner plum blossom hole 12 and the first connection outer plum blossom structure are adapted to each other.

[0056] The minimum value of the angle adjustment between the first connecting inner plum blossom hole and the first connecting outer plum blossom structure is 30°. Specific embodiment 7: This embodiment further illustrates the secondary lever mechanism 2 and the primary lever mechanism 1 on the basis of the specific embodiment 1. The other end of the secondary lever mechanism 2 connected to the primary lever mechanism 1 is further provided with a third lever mechanism 5. The third lever mechanism 5 is detachably connected to the secondary lever mechanism 2 via a plug-in structure with a second adjustable connection angle. A lever safety hole 3 is provided in the middle of the third lever mechanism 5.

[0058] The three-stage lever mechanism is only used when the torque of the second-stage lever mechanism is insufficient or the lever posture needs to be adjusted for a second time according to the pipeline layout and space size. When in use, the working end of the first-stage lever mechanism is inserted into the catheter nut, and the first-stage lever mechanism transmits the torque to the second-stage lever mechanism. The second-stage lever mechanism then adjusts its posture according to the pipeline layout and space size, and cooperates with the first-stage lever mechanism to push the catheter nut to rotate, or the second-stage lever mechanism adjusts its posture and transmits the torque to the third-stage lever mechanism. The third-stage lever mechanism adjusts its posture again according to the pipeline layout and space size, and cooperates with the first-stage lever mechanism and the second-stage lever mechanism to push the catheter nut to rotate, thereby realizing the disconnection or tightening assembly of the catheter nut and the connected product. The lever safety hole here can prevent the three-stage lever mechanism from slipping during operation. Specific embodiment 8: This embodiment further illustrates the plug-in structure of the second adjustable connection angle on the basis of the specific embodiment 7. The plug-in structure of the second adjustable connection angle includes a second inner plum blossom hole 51 for connection and a second outer plum blossom structure for connection. The second inner plum blossom hole 51 for connection is provided at one end of the three-stage lever mechanism 5, and the second outer plum blossom structure for connection is provided at one end of the two-stage lever mechanism 2. The second inner plum blossom hole 51 for connection and the second outer plum blossom structure for connection are adapted to each other.

[0060] The minimum value of the angle adjustment of the plug-in structure of the second adjustable connection angle is also 30°. Specific embodiment 9: This embodiment further illustrates the primary lever mechanism 1 based on the specific embodiment 7. The structure of the working end of the primary lever mechanism 1 is an inner plum blossom hole design structure 11 with reinforcing ribs.

[0062] When the operating end of the primary lever mechanism can directly contact the spatial position of the pipe nut, the structure can be used to conveniently and quickly insert the pipe nut using the inner plum blossom hole design structure with reinforcing ribs. Specific embodiment 10: This embodiment further explains the inner plum blossom hole design structure 11 with reinforcement ribs on the basis of specific embodiment 9. The inner plum blossom hole design structure 11 with reinforcement ribs is also provided with a working end socket 4. The outer wall of one end of the working end socket 4 connected to the inner plum blossom hole design structure 11 with reinforcement ribs is provided with an outer plum blossom structure of the working end socket adapted to the inner plum blossom hole design structure 11 with reinforcement ribs, and the other end of the working end socket 4 is provided with an inner plum blossom structure of the working end socket.

[0064] When the working end of the primary lever mechanism cannot directly contact the spatial position of the pipe nut, a corresponding auxiliary mechanism needs to be set up. The so-called auxiliary mechanism is the working end socket, one end of which is connected to the primary lever mechanism, and the other end is used to connect with the pipe nut.

[0065] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-angle piping subassembly device for special parts of an aircraft engine, characterized by: The invention comprises a primary lever mechanism (1) and a secondary lever mechanism (2), wherein one end of the primary lever mechanism (1) is an operating end, and the other end of the primary lever mechanism (2) is connected to the secondary lever mechanism (2), and the primary lever mechanism (1) and the secondary lever mechanism (2) are detachably connected via a plug-in structure with a first adjustable connection angle.

2. The multi-angle pipeline subassembly device for special parts of an aircraft engine according to claim 1, characterized in that: Lever safety holes (3) are provided in the middle of the first-level lever mechanism (1) and the second-level lever mechanism (2).

3. The multi-angle piping subassembly device for special parts of an aircraft engine according to claim 1, characterized in that: The structure of the working end of the primary lever mechanism (1) is an inner plum blossom hole design structure (11) with reinforcing ribs.

4. The multi-angle piping subassembly device for special parts of an aircraft engine according to claim 3, characterized in that: The inner plum blossom hole design structure with reinforcing ribs (11) is also provided with an operating end socket (4), and the outer wall of one end of the operating end socket (4) connected to the inner plum blossom hole design structure with reinforcing ribs (11) is provided with an outer plum blossom structure of the operating end socket adapted to the inner plum blossom hole design structure with reinforcing ribs (11), and the other end of the operating end socket (4) is provided with an inner plum blossom structure of the operating end socket.

5. The multi-angle piping subassembly device for special parts of an aircraft engine according to claim 4, characterized in that: A socket safety hole (41) is provided in the middle of the operating end socket (4).

6. The multi-angle piping subassembly device for special parts of an aircraft engine according to claim 1, characterized in that: The first plug-in structure with adjustable connection angle comprises a first connection inner plum blossom hole (12) and a first connection outer plum blossom structure, wherein the first connection inner plum blossom hole (12) is provided at one end of the primary lever mechanism (1), and the first connection outer plum blossom structure is provided at one end of the secondary lever mechanism (2), and the first connection inner plum blossom hole (12) and the first connection outer plum blossom structure are adapted to each other.

7. The multi-angle piping subassembly device for special parts of an aircraft engine according to claim 1, characterized in that: The other end of the secondary lever mechanism (2) connected to the primary lever mechanism (1) is further provided with a third lever mechanism (5), the third lever mechanism (5) and the secondary lever mechanism (2) being detachably connected via a plug-in structure with a second adjustable connection angle, and a lever safety hole (3) is provided in the middle of the third lever mechanism (5).

8. The multi-angle piping subassembly device for special parts of an aircraft engine according to claim 7, characterized in that: The second plug-in structure with adjustable connection angle comprises a second connection inner plum blossom hole (51) and a second connection outer plum blossom structure, wherein the second connection inner plum blossom hole (51) is provided at one end of the three-stage lever mechanism (5), and the second connection outer plum blossom structure is provided at one end of the two-stage lever mechanism (2), and the second connection inner plum blossom hole (51) and the second connection outer plum blossom structure are adapted to each other.

9. The multi-angle piping subassembly device for special parts of an aircraft engine according to claim 7, characterized in that: The structure of the working end of the primary lever mechanism (1) is an inner plum blossom hole design structure (11) with reinforcing ribs.

10. The multi-angle piping subassembly device for special parts of an aircraft engine according to claim 9, characterized in that: The inner plum blossom hole design structure with reinforcing ribs (11) is also provided with an operating end socket (4), and the outer wall of one end of the operating end socket (4) connected to the inner plum blossom hole design structure with reinforcing ribs (11) is provided with an outer plum blossom structure of the operating end socket adapted to the inner plum blossom hole design structure with reinforcing ribs (11), and the other end of the operating end socket (4) is provided with an inner plum blossom structure of the operating end socket.

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