Aero-engine conduit cleaning auxiliary device
By designing an auxiliary device for cleaning aircraft engine ducts, and adopting a support ring and duct frame structure, the problem of unstable suspension was solved, enabling stable suspension and safe cleaning of multiple types of ducts, thus improving the cleaning effect and operational safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-30
- Publication Date
- 2026-04-14
AI Technical Summary
Existing aircraft engine duct suspension vehicles suffer from unstable suspension and require connecting cables during cleaning, which affects the cleaning effect.
An auxiliary device for cleaning aircraft engine ducts, comprising a cleaning carrier and a cleaning trolley, was designed. It adopts a support ring and duct frame structure, and achieves stable suspension and safe operation through mounting base, clamping components and casters.
It enables stable suspension and safe cleaning of multiple types and sizes of conduits, improving cleaning effectiveness and operational safety.
Smart Images

Figure CN121847522A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of aircraft engine duct cleaning technology, and particularly relates to an auxiliary device for aircraft engine duct cleaning. Background Technology
[0002] The cleanliness of aircraft engine ducts is a crucial factor affecting engine performance. Engine duct cleaning involves cleaning both the inner and outer surfaces, with the cleanliness of the inner surface being particularly important. Currently used duct suspension vehicles have several drawbacks in automated engine duct cleaning: 1. Existing hook fixtures cannot directly suspend ducts and require connecting lines for suspension; 2. Existing hook fixtures are unstable when suspending ducts, easily swaying, which affects the cleaning effect if the ducts are placed in cleaning equipment. Summary of the Invention
[0003] To solve the above-mentioned technical problems, the present invention provides an auxiliary device for cleaning ducts of aircraft engines.
[0004] The present invention is achieved through the following technical solutions.
[0005] The present invention provides an auxiliary device for cleaning ducts of aircraft engines, including a cleaning carrier and a cleaning trolley. The cleaning carrier includes a main shaft and a support ring. The two ends of the main shaft are respectively connected to the support ring, and a duct frame is provided between the two support rings. The cleaning trolley includes a trolley body, a mounting seat is provided on the trolley body, and the support ring is provided on the mounting seat.
[0006] Preferably, the inner circle of the support ring is provided with an inner ring and a connecting rod, the inner ring and the connecting rod are connected, the inner ring is connected to the guide frame, and the support ring is connected to the main shaft through the connecting rod.
[0007] Preferably, the support ring is a ball bearing ring.
[0008] Preferably, the guide frame is provided with clamping components.
[0009] Preferably, handles are provided at both ends of the trolley body.
[0010] Preferably, an oil pan is provided at the bottom of the trolley body.
[0011] Preferably, the trolley body is equipped with casters at the bottom.
[0012] Preferably, the mounting base is flared on both sides.
[0013] The beneficial effects of this invention are as follows: The cleaning auxiliary device of the present invention can clean aero-engine ducts of various types, sizes and shapes; the horn-shaped structure on both sides of the mounting base prevents the cleaning carrier from falling out, protecting the safety of the operator and the equipment and improving safety in the automated cleaning process; the cleaning carrier is designed to hold different numbers and types of aero-engine ducts by clamping the clamping parts. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the present invention; In the diagram: 1-main shaft, 2-guide tube frame, 21-clamping component, 3-support ring, 31-inner ring, 32-connecting rod, 4-trolley body, 5-mounting seat, 6-handle, 7-oil pan, 8-caster wheel. Detailed Implementation
[0015] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.
[0016] Example: like Figure 1 As shown, an auxiliary device for cleaning ducts of an aircraft engine includes a cleaning carrier and a cleaning trolley. The cleaning carrier includes a main shaft 1 and a support ring 3. The two ends of the main shaft 1 are respectively connected to the support ring 3, and a duct frame 2 is arranged between the two support rings 3. The cleaning trolley includes a trolley body 4, and a mounting seat 5 is arranged on the trolley body 4. The support ring 3 is arranged on the mounting seat 5.
[0017] The inner circle of the support ring 3 is provided with an inner ring 31 and a connecting rod 32. The inner ring 31 and the connecting rod 32 are connected. The inner ring 31 is connected to the guide frame 2. This arrangement can increase the number of guide frames 2, thereby increasing the number of clamping parts 21, which is convenient for fixing more or more types of aero-engine guides. The support ring 3 is connected to the main shaft 1 through the connecting rod 32. The main shaft 1 can be rotated by connecting external equipment, thereby causing the cleaning carrier to rotate.
[0018] The support ring 3 is a ball bearing ring, and the support ring 3 is slidably connected to the mounting base 5, so that the cleaning carrier can rotate on the mounting base 5.
[0019] The guide frame 2 is provided with clamping members 21, which are clamped on the guide frame 2 to achieve detachable connection. The number and type of clamping members 21 are determined according to actual needs. The clamping members 21 are used to clamp the aero-engine guide tube.
[0020] The trolley body 4 is equipped with handles 6 at both ends, making it easy to push the cleaning trolley from both sides.
[0021] The bottom of the trolley body 4 is equipped with an oil pan 7, which is detachable and used to collect liquid dripping during the cleaning of the aircraft engine ducts.
[0022] The trolley body 4 is equipped with a universal wheel 8 at each of the four corners of its bottom. The universal wheel 8 is a lockable universal wheel.
[0023] The mounting base 5 is flared on both sides to prevent the support ring 3 from sliding off the mounting base 5. Two sets of mounting bases 5 are symmetrically arranged on the trolley body 4, with one set of mounting bases 5 on each side of the trolley body 4. The two mounting bases 5 support one support ring 3.
Claims
1. An auxiliary device for cleaning ducts of an aircraft engine, characterized in that: The cleaning device includes a cleaning carrier and a cleaning trolley. The cleaning carrier includes a main shaft (1) and a support ring (3). The two ends of the main shaft (1) are respectively connected to the support ring (3). A guide frame (2) is provided between the two support rings (3). The cleaning trolley includes a trolley body (4). A mounting seat (5) is provided on the trolley body (4). The support ring (3) is provided on the mounting seat (5).
2. The auxiliary device for cleaning ducts of an aircraft engine as described in claim 1, characterized in that: The inner circle of the support ring (3) is provided with an inner ring (31) and a connecting rod (32). The inner ring (31) and the connecting rod (32) are connected. The inner ring (31) is connected to the guide frame (2). The support ring (3) is connected to the main shaft (1) through the connecting rod (32).
3. The auxiliary device for cleaning ducts of an aircraft engine as described in claim 1, characterized in that: The support ring (3) is a ball bearing ring.
4. The auxiliary device for cleaning ducts of an aircraft engine as described in claim 1, characterized in that: The guide frame (2) is provided with a clamping element (21).
5. The auxiliary device for cleaning ducts of an aircraft engine as described in claim 1, characterized in that: The trolley body (4) is provided with handles (6) at both ends.
6. The auxiliary device for cleaning ducts of an aircraft engine as described in claim 1, characterized in that: An oil pan (7) is installed at the bottom of the trolley body (4).
7. The auxiliary device for cleaning ducts of an aircraft engine as described in claim 1, characterized in that: The trolley body (4) is equipped with casters (8) at the bottom.
8. The auxiliary device for cleaning ducts of an aircraft engine as described in claim 1, characterized in that: The mounting base (5) is flared on both sides.