Cleaning device for turbine rotor of aero-engine

Abstract

The utility model discloses an aero-engine turbine rotor cleaning device, which relates to the field of turbine rotor cleaning devices, and comprises a connecting sleeve, the bottom of the connecting sleeve is detachably connected with a turbine rotor, the top of the connecting sleeve is detachably connected with a copper brush holder, the bottom of the copper brush holder is provided with a mounting ring, and the inner wall of the mounting ring is provided with a copper brush; according to the cleaning device for the turbine rotor of the aero-engine, a mechanical scrubbing mode is adopted, the cleaning device directly acts on a carbon deposition part, especially stubborn deposited carbon near an oil throwing hole of the turbine rotor, efficient and convenient on-site cleaning is achieved, the cleaning device does not depend on external electric power, and the cleaning device can adapt to turbine rotor cleaning work under various environmental conditions.

Description

Technical Field

[0001] The utility model relates to the field of turbine rotor cleaning devices, in particular to an aircraft engine turbine rotor cleaning device. Background Art

[0002] In the field of modern aircraft engine maintenance, the performance of the turbine rotor, as a core component, directly affects the overall efficiency and operational reliability of the engine. Especially during the decomposition and inspection phase after the test run, the turbine rotor is in an extremely high temperature combustion environment. In addition, the mechanism of jet fuel discharge through the oil-slinging hole in its design makes it very easy for heavy carbon deposits to accumulate in the area around the oil-slinging hole, which not only affects the thermal efficiency and power output of the engine, but may also cause early wear and failure of the turbine components.

[0003] To address this problem, existing cleaning technologies mainly include two categories: one is to use a method that combines mechanical clamping with liquid cleaning, that is, a motor-driven clamping mechanism drives the turbine rotor to reciprocate, and uses pumped cleaning liquid for spraying and cleaning; the other is to use ultrasonic cleaning technology, immersing the turbine rotor in an ultrasonic cleaning instrument for non-contact cleaning.

[0004] However, for turbine rotors with larger mass, the installation and disassembly process between mechanical clamps and turbine rotors is time-consuming and labor-intensive, increasing maintenance costs and cycles; ultrasonic cleaning has limited ability to remove stubborn carbon deposits and cannot meet the needs of deep cleaning. In addition, both motor-driven spray cleaning and ultrasonic cleaning are heavily dependent on a stable power supply, which poses a significant obstacle to use during field operations, emergency repairs or power shortages. Utility Model Content

[0005] The purpose of the utility model is to provide an aircraft engine turbine rotor cleaning device, which directly acts on the carbon deposited parts, especially the stubborn carbon deposits near the oil-spinning holes of the turbine rotor, by adopting a mechanical brushing method, thereby achieving efficient and convenient on-site cleaning, and does not rely on external electricity, and can adapt to turbine rotor cleaning work in various environmental conditions.

[0006] The above-mentioned optimized structure of the utility model is realized through the following technical scheme: an aircraft engine turbine rotor cleaning device, which can be detachably connected to the turbine rotor, including a connecting sleeve, the bottom of which is detachably connected to the turbine rotor, and the top of which is detachably connected to a copper brush holder, the bottom of which is provided with a mounting ring, and the inner wall of the mounting ring is provided with a copper brush.

[0007] In some embodiments, the connecting sleeve includes a fixing ring, and the fixing ring is coaxially provided with a threaded sleeve, the inner wall of the threaded sleeve is threadedly matched with the top of the turbine rotor, and the outer wall of the threaded sleeve is threadedly matched with the copper brush holder.

[0008] In some embodiments, the connecting sleeve further includes two driving rods, and the two driving rods are symmetrically arranged on the fixing ring.

[0009] In some embodiments, the copper brush holder includes a connecting ring, which is threadedly engaged with the connecting sleeve. The connecting ring is provided with at least three L-shaped rods, and the bottoms of the three L-shaped rods are connected to the mounting ring.

[0010] In some embodiments, the L-shaped rod is hinged to the connecting ring, an arc-shaped plate is provided at the bottom of the L-shaped rod, three arc-shaped plates are arranged to form the mounting ring, and the copper brush is provided on the inner wall of the arc-shaped plate.

[0011] In some embodiments, the mounting ring sleeve is provided with a clamping ring, the bottom of the clamping ring is provided with a limit platform, and the limit platform is arranged on the outer wall of the mounting ring.

[0012] In some embodiments, a thread is provided on the outer wall of the mounting ring, and the mounting ring is threadedly engaged with the fixing ring.

[0013] In some embodiments, the copper brush holder further comprises at least two rotating rods, and the two rotating rods are symmetrically arranged on the connecting ring.

[0014] In summary, the utility model has the following beneficial effects:

[0015] This aircraft engine turbine rotor cleaning device is convenient for installation and disassembly of the entire cleaning device and the turbine rotor through the detachable connection between the copper brush holder, the connecting sleeve and the turbine rotor, thereby reducing maintenance costs and cycles. A copper brush is arranged on the copper brush holder, and a mechanical brushing method is adopted so that the copper brush can directly act on the carbon deposited parts, especially the stubborn carbon deposits near the oil throwing holes of the turbine rotor, thereby achieving efficient and convenient on-site cleaning, and does not rely on external electricity, and can adapt to turbine rotor cleaning work under various environmental conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the copper brush of the utility model on the copper brush holder;

[0018] Figure 3 This is a schematic diagram of the structure of the utility model installed on a turbine rotor.

[0019] In the figure: 1. turbine rotor; 2. connecting sleeve; 21. fixing ring; 22. threaded sleeve; 23. driving rod; 3. copper brush holder; 31. mounting ring; 32. connecting ring; 33. L-shaped rod; 34. arc plate; 35. limit table; 36. rotating rod; 4. copper brush; 5. clamping ring. DETAILED DESCRIPTION

[0020] 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 them. Based on the embodiments of 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.

[0021] refer to Figure 1-3 , an aircraft engine turbine rotor cleaning device, which can be detachably connected to the turbine rotor 1, includes a connecting sleeve 2, and the connecting sleeve 2 can be made of high-strength lightweight alloy material, such as an aluminum alloy tube, to reduce weight while ensuring sufficient structural strength. The connecting sleeve 2 includes a fixing ring 21, and the fixing ring 21 is coaxially provided with a threaded sleeve 22. The inner wall of the threaded sleeve 22 is screwed with the top of the turbine rotor 1 to achieve a detachable connection between the bottom of the connecting sleeve 2 and the turbine rotor 1. The outer wall of the threaded sleeve 22 is screwed with the copper brush holder 3 to achieve a detachable connection between the top of the connecting sleeve 2 and the copper brush holder 3. The copper brush holder 3 includes a connecting ring 32, and the connecting ring 32 is screwed with the connecting sleeve 2 to ensure the stable installation and convenient disassembly of the copper brush holder 3. At least three L-shaped rods 33 are provided on the connecting ring 32. The three L-shaped rods 33 are provided on the connecting ring 32. A mounting ring 31 is connected to the bottom of the L-shaped rod 33. The L-shaped rod 33 and the mounting ring 31 can be fixed by welding or screws. A copper brush 4 is provided on the inner wall of the mounting ring 31 and can be fixed by welding. The copper brush 4 can be in contact with the surface of the turbine rotor 1 for cleaning. The copper brush 4 can be made of bristles of different hardness and shapes, such as a hard metal wire brush for stubborn carbon deposits, and a soft copper wire brush for delicate surface maintenance. By replacing different types of copper brushes 4 to meet diverse cleaning needs, the cleaning efficiency can be further improved and different types of carbon deposits can be adapted.

[0022] The mounting ring 31 can be sleeved on the turbine rotor 1 , and the copper brush 4 can be raised or lowered by rotating the connecting ring 32 , thereby adjusting the position of the copper brush 4 against the surface of the turbine rotor 1 , thereby achieving cleaning of the surface of the turbine rotor 1 .

[0023] In some embodiments, the connecting sleeve 2 also includes two driving rods 23, which are symmetrically arranged on the fixing ring 21, so that the operator can manually push or drive the connecting sleeve 2 to rotate through an external power device, thereby realizing the installation and disassembly between the connecting sleeve 2 and the turbine rotor 1.

[0024] In some embodiments, the copper brush holder 3 further includes at least two rotating rods 36 , and the two rotating rods 36 are symmetrically arranged on the connecting ring 32 to facilitate the rotation of the copper brush holder 3 .

[0025] The specific working principle is as follows:

[0026] When in use, place the turbine rotor 1 to be cleaned, correctly connect the threaded sleeve 22 of the device with the top of the turbine rotor 1 through the driving rod 23 and tighten it, so as to fix the connecting sleeve 2 on the top of the turbine rotor 1. Then, the copper brush 4 is installed and fixed on the inner wall of the mounting ring 31 to ensure that the copper brush will not fall off during the cleaning process; the connecting ring 32 is screwed with the connecting sleeve 2 to fix the copper brush holder 3 on the connecting sleeve 2, and the mounting ring 31 is sleeved on the turbine rotor 1 so that the copper brush 4 fits tightly on the carbon deposit area on the surface of the turbine rotor 1; after installation, pour the cleaning liquid into the hole at the upper end of the turbine rotor 1 until there is obvious cleaning liquid flowing from the oil-slinging hole to the carbon deposit area; by rotating the rod 36, the copper brush holder 3 is rotated along the radial direction of the turbine rotor 1, and the copper brush 4 removes the carbon deposit under the action of physical friction. After cleaning, the cleaning device can be easily disassembled by reverse operation, the cleaning effect can be checked, and the copper brush 4 can be maintained or replaced as necessary.

[0027] In some embodiments, the L-shaped rod 33 is hinged to the connecting ring 32, and the L-shaped rod 33 can be hinged to the connecting ring 32 by passing a fixed shaft through one end of the L-shaped rod 33, so that the L-shaped rod 33 can rotate on the connecting ring 32, and an arc-shaped plate 34 is provided at the bottom of the L-shaped rod 33, and three arc-shaped plates 34 are arranged to form a mounting ring 31, and a copper brush 4 is provided on the inner wall of the arc-shaped plate 34; the three arc-shaped plates 34 can be opened by rotating the L-shaped rod 33, so that the three arc-shaped plates 34 can be arranged to form a mounting ring 31 in the carbon deposition area, so that the copper brush 4 can fit tightly to the surface of the turbine rotor 1, thereby enhancing the strength of the copper brush 4 when cleaning the surface of the turbine rotor 1 and enhancing the cleaning effect.

[0028] In some embodiments, the mounting ring 31 is sleeved with a clamping ring 5, and a limit platform 35 is provided at the bottom of the clamping ring 5. The limit platform 35 is arranged on the outer wall of the mounting ring 31. The clamping ring 5 can limit the size of the mounting ring 31 to prevent the arc plate 34 from bulging due to force during the cleaning process, and the copper brush 4 cannot fit tightly against the surface of the turbine rotor 1.

[0029] In some embodiments, threads are provided on the outer wall of the mounting ring 31, and the mounting ring 31 is screwed together with the fixing ring 5 to enhance the connection strength between the three arc-shaped plates 34, thereby enhancing the stability of the mounting ring 31 and ensuring the cleaning effect.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An aircraft engine turbine rotor cleaning device, detachably connected to the turbine rotor (1), characterized in that: It comprises a connecting sleeve (2), the bottom of the connecting sleeve (2) being detachably connected to the turbine rotor (1), the top of the connecting sleeve (2) being detachably connected to a copper brush holder (3), the bottom of the copper brush holder (3) being provided with a mounting ring (31), and the inner wall of the mounting ring (31) being provided with a copper brush (4).

2. The aircraft engine turbine rotor cleaning device according to claim 1, characterized in that: The connecting sleeve (2) comprises a fixing ring (21), the fixing ring (21) being coaxially provided with a threaded sleeve (22), the inner wall of the threaded sleeve (22) being threadedly engaged with the top of the turbine rotor (1), and the outer wall of the threaded sleeve (22) being threadedly engaged with the copper brush holder (3).

3. The aircraft engine turbine rotor cleaning device according to claim 2, characterized in that: The connecting sleeve (2) further comprises two driving rods (23), and the two driving rods (23) are symmetrically arranged on the fixing ring (21).

4. The aircraft engine turbine rotor cleaning device according to claim 1, characterized in that: The copper brush holder (3) comprises a connecting ring (32), the connecting ring (32) being threadedly engaged with the connecting sleeve (2), the connecting ring (32) being provided with at least three L-shaped rods (33), the bottoms of the three L-shaped rods (33) being connected to the mounting ring (31).

5. The aircraft engine turbine rotor cleaning device according to claim 4, characterized in that: The L-shaped rod (33) is hinged to the connecting ring (32), an arc-shaped plate (34) is provided at the bottom of the L-shaped rod (33), three arc-shaped plates (34) are arranged to form the mounting ring (31), and the copper brush (4) is provided on the inner wall of the arc-shaped plate (34).

6. The aircraft engine turbine rotor cleaning device according to claim 5, characterized in that: The mounting ring (31) is sleeved with a clamping ring (5), the bottom of the clamping ring (5) is provided with a limiting platform (35), and the limiting platform (35) is arranged on the outer wall of the mounting ring (31).

7. The aircraft engine turbine rotor cleaning device according to claim 6, characterized in that: The outer wall of the mounting ring (31) is provided with threads, and the mounting ring (31) is threadedly engaged with the clamping ring (5).

8. The aircraft engine turbine rotor cleaning device according to claim 4, characterized in that: The copper brush holder (3) further comprises at least two rotating rods (36), wherein the two rotating rods (36) are symmetrically arranged on the connecting ring (32).

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