A clamping device for an aero turbine engine

Abstract

The utility model discloses a kind of clamping devices for aviation turbofan engine, belong to turbofan engine maintenance technical field.A kind of clamping devices for aviation turbofan engine, including tool base;Large clamping component and small clamping component, large clamping component and small clamping component are arranged on tool base before and after, for respectively clamping the front and rear ends of turbofan engine;Large clamping component and small clamping component are movably arranged on tool base along horizontal direction;Large clamping component includes lower large clamping ring sleeve and upper large clamping ring sleeve, and lower large clamping ring sleeve and upper large clamping ring sleeve cooperate with each other;Small clamping component includes lower small clamping ring sleeve and upper small clamping ring sleeve, and lower small clamping ring sleeve and upper small clamping ring sleeve cooperate with each other;Upper large clamping ring sleeve and upper small clamping ring sleeve are movably arranged along height direction.It can realize the displacement adjustment of turbofan engine in multidirection, and multi-angle is maintained and maintained to turbofan engine.

Description

Technical Field

[0001] This utility model belongs to the field of turbofan engine maintenance technology, and more specifically, relates to a clamping device for aircraft turbofan engines. Background Technology

[0002] Turbofan engines are power plants widely used in aviation, aerospace, and ground-based power generation. They work by using jet propulsion, ejecting high-temperature, high-pressure gases produced by fuel combustion, which generate a reaction force to propel the aircraft forward. Turbofan engines offer advantages such as high efficiency, low noise, and low emissions, and have become one of the core technologies of the modern aviation industry. The development of turbofan engines can be traced back to the early 20th century, when jet engines primarily consisted of turbojet and turboprop engines. Turbofan engines derive their thrust from the high-speed ejected gas, but their high fuel consumption makes them unsuitable for prolonged low-speed flight.

[0003] Due to their high efficiency, low noise, and low emissions, turbofan engines have been widely used in the aviation field. After prolonged operation, turbofan engines require regular internal maintenance and inspection. However, current maintenance and inspection methods typically involve vertically adjusting the equipment, requiring maintenance to be performed from the top and bottom of the engine. Furthermore, some turbofan engines require lifting equipment for rigged operation. During lifting, the engine's weight necessitates repositioning by machinery. Additionally, to minimize blind spots during lifting, the engine needs to be tilted for observation, thus reducing the time and effort required for inspection. Utility Model Content

[0004] This invention provides a clamping device for aircraft turbofan engines, which can realize multi-directional displacement adjustment of turbofan engines and multi-angle maintenance and repair of turbofan engines.

[0005] This utility model discloses a clamping device for an aero-engine turbofan, comprising a tooling base; a large clamping assembly and a small clamping assembly, the large clamping assembly and the small clamping assembly being arranged one in front of the other on the tooling base for clamping the front and rear ends of the turbofan engine respectively; wherein, the large clamping assembly and the small clamping assembly are movably mounted on the tooling base in the horizontal direction to achieve horizontal displacement of the turbofan engine; the large clamping assembly includes a lower large clamping ring sleeve and an upper large clamping ring sleeve, the lower large clamping ring sleeve and the upper large clamping ring sleeve cooperating with each other to clamp the large annular diameter wall of the turbofan engine; the small clamping assembly includes a lower small clamping ring sleeve and an upper small clamping ring sleeve, the lower small clamping ring sleeve and the upper small clamping ring sleeve cooperating with each other to clamp the small annular diameter wall of the turbofan engine; the upper large clamping ring sleeve and the upper small clamping ring sleeve are movably mounted in the height direction to achieve height adjustment and tilting of the turbofan engine.

[0006] As a further improvement of this utility model, the tooling base includes an operating cavity and a sliding cavity, and the sliding cavity is provided with a toothed groove and a displacement toothed groove; the large clamping assembly and the small clamping assembly are connected to the displacement toothed groove through a displacement gear to realize the horizontal movement.

[0007] As a further improvement of this utility model, the large clamping assembly includes a large clamping displacement gear and a large clamping operating rod. The large clamping displacement gear meshes with the displacement tooth groove, and the large clamping operating rod is used to control the movement of the large clamping displacement gear within the displacement tooth groove. The small clamping assembly includes a small clamping displacement gear and a small clamping operating rod. The small clamping displacement gear meshes with the displacement tooth groove, and the small clamping operating rod is used to control the movement of the small clamping displacement gear within the displacement tooth groove.

[0008] As a further improvement of this utility model, the upper large clamping ring sleeve is movable along the height direction via the upper large clamping telescopic rod; the upper small clamping ring sleeve is movable along the height direction via the upper small clamping telescopic rod.

[0009] As a further improvement of this utility model, the tooling base also includes a slide groove; the lower large clamping ring sleeve is slidably connected to the slide groove through the lower large clamping slider; the lower small clamping ring sleeve is slidably connected to the slide groove through the lower small clamping slider.

[0010] As a further improvement of this utility model, the lower large clamping ring sleeve and the upper large clamping ring sleeve are matched with the large annular diameter wall of the turbofan engine; the lower small clamping ring sleeve and the upper small clamping ring sleeve are matched with the small annular diameter wall of the turbofan engine.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] The horizontal movement design of the large and small clamping components on the tooling base enables precise horizontal displacement adjustment of the turbofan engine, facilitating access for maintenance personnel from different positions and avoiding the limitations of traditional tooling that can only move up and down. The upper large and small clamping rings can move vertically, allowing for height adjustment and tilt angle changes via a telescopic rod mechanism, effectively reducing blind spots during maintenance and improving efficiency and safety. The large and small clamping components are designed specifically for the large and small ring diameter walls of the turbofan engine, respectively. The lower and upper rings interlock, ensuring stable clamping and protecting the engine surface, while adapting to the structural characteristics of different engine models. The gear and tooth meshing mechanism, combined with the operating lever design, makes horizontal movement and height adjustment simple, labor-saving, and precisely controlled, reducing errors and time consumption associated with manual adjustments. The tooling base integrates an operating chamber and a sliding chamber. The sliding groove and slider work together to ensure smooth component movement. The overall structure is compact and suitable for narrow or complex maintenance environments, improving the practicality and adaptability of the tooling. This device can achieve multi-angle adjustment of the engine without frequent use of lifting equipment, reducing safety risks and operational complexity during lifting, and saving maintenance time and costs. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a side view of the three-dimensional structure of the present invention;

[0015] Figure 3 This is a frontal planar structural schematic diagram of the present invention;

[0016] Figure 4 This is a side view cross-sectional three-dimensional structural diagram of the present invention;

[0017] Figure 5 This utility model Figure 4 A magnified structural diagram of point A in the middle.

[0018] Explanation of the labels in the diagram:

[0019] Tooling base 1, operating chamber 11, slide groove 111, sliding chamber 12, toothed groove 121, displacement toothed groove 122, large clamping assembly 2, lower large clamping ring sleeve 21, lower large clamping slider 211, upper large clamping ring sleeve 22, upper large clamping connecting bolt 221, upper large clamping connecting plate 222, upper large clamping telescopic rod 223, large clamping displacement gear 224, large clamping operating rod 225, small clamping assembly 3, lower small clamping ring sleeve 31, lower small clamping slider 311, upper small clamping ring sleeve 32, upper small clamping connecting bolt 321, upper small clamping connecting plate 322, upper small clamping telescopic rod 323, small clamping displacement gear 324, small clamping operating rod 325, turbofan engine 4. Detailed Implementation

[0020] Specific Implementation Example 1: Please refer to... Figures 1-5 A clamping device for an aircraft turbofan engine includes a tooling base 1, a large clamping assembly 2, a small clamping assembly 3, and a turbofan engine 4. The large clamping assembly 2 and the small clamping assembly 3 are arranged in a front-to-back arrangement within the tooling base 1. Both the large clamping assembly 2 and the small clamping assembly 3 are capable of horizontal movement within the tooling base 1, and are used to clamp the front and rear ends of the turbofan engine 4, respectively.

[0021] Specifically, the tooling base 1 has an operating cavity 11 in the middle, and a sliding groove 111 is formed in the lower middle of the operating cavity 11. A sliding cavity 12 is formed in the upper end of the operating cavity 11, and a toothed groove 121 is formed in the inner circumference of the sliding cavity 12. Multiple displacement toothed grooves 122 are fixedly provided on both sides of the toothed groove 121. The upper ends of the large clamping assembly 2 and the small clamping assembly 3 are engaged with the multiple displacement toothed grooves 122, and the lower ends of the large clamping assembly 2 and the small clamping assembly 3 are slidably connected to the sliding groove 111, so as to realize that the large clamping assembly 2 and the small clamping assembly 3 clamp the turbofan engine 4 and move it in the horizontal direction.

[0022] Specifically, the large clamping assembly 2 includes a lower large clamping ring 21 and an upper large clamping ring 22. The lower large clamping ring 21 and the upper large clamping ring 22 are matched with the large annular diameter wall of the turbofan engine 4. The lower large clamping ring 21 and the upper large clamping ring 22 are interlocked to clamp the peripheral wall of the turbofan engine 4. A lower large clamping slider 211 is fixedly provided at the lower end of the lower large clamping ring 21, and the lower large clamping slider 211 is slidably connected to the slide groove 111. An upper clamping connecting bolt 221 is fixedly installed at the upper end of the upper large clamping ring 22, and an upper large clamping connecting plate 222 is fixedly installed at the upper end of the upper large clamping connecting bolt 221. An upper large clamping telescopic rod 223 with the ability to move along the height direction is fixedly installed at the upper end of the upper large clamping connecting plate 222, so that the upper large clamping ring 22 can be moved along the height direction by the upper large clamping telescopic rod 223. A large clamping displacement gear 224 is sleeved on the upper end of the upper large clamping telescopic rod 223, and the large clamping displacement gear 224 is meshed with the displacement tooth groove 122. A large clamping operating rod 225 is rotatably installed at the upper end of the large clamping displacement gear 224. The large clamping operating rod 225 pushes the large clamping displacement gear 224 into the slide groove 111, so that the large clamping operating rod 225 controls the movement of the large clamping displacement gear 224 in the slide groove 111.

[0023] Specifically, the small clamping assembly 3 includes a lower small clamping ring 31 and an upper small clamping ring 32. The lower small clamping ring 31 and the upper small clamping ring 32 are matched with the small annular diameter wall of the turbofan engine 4. The lower small clamping ring 31 and the upper small clamping ring 32 are inserted into each other to clamp the peripheral wall of the turbofan engine 4. A lower small clamping slider 311 is fixedly provided at the lower end of the lower small clamping ring 31, and the lower small clamping slider 311 is slidably connected to the slide groove 111. An upper small clamping ring 32 is fixedly provided with an upper small clamping connecting bolt 321 at its upper end, and an upper small clamping connecting plate 322 is fixedly provided at the upper end of the upper small clamping connecting bolt 321. An upper small clamping telescopic rod 323 with the ability to move along the height direction is fixedly provided at the upper end of the upper small clamping connecting plate 322, so that the upper small clamping ring 32 can be moved along the height direction by the upper small clamping telescopic rod 323. A small clamping displacement gear 324 is sleeved on the upper end of the upper small clamping telescopic rod 323, and the small clamping displacement gear 324 is meshed with the displacement tooth groove 122. A small clamping operating rod 325 is rotatably provided on the upper end of the small clamping displacement gear 324. The small clamping operating rod 325 pushes the small clamping displacement gear 324 into the slide groove 111, so that the small clamping operating rod 325 controls the movement of the small clamping displacement gear 324 in the slide groove 111.

[0024] Working principle:

[0025] This device uses large and small clamping components to encircle and clamp the front and rear ends of the engine respectively. The operator drives the gears to mesh and move in the base groove by shaking the operating lever, so as to achieve the overall horizontal movement of the engine. By controlling the raising and lowering of the telescopic rods of the two sets of upper clamping rings, the height and tilt angle of the engine can be flexibly adjusted, so as to realize the position and attitude adjustment of the turbofan engine in multiple degrees of freedom and multiple directions, and meet all-round maintenance needs.

Claims

1. A clamping device for an aircraft turbofan engine, characterized in that: include Tooling base (1); Large clamping assembly (2) and small clamping assembly (3) are arranged one in front of the other on the tooling base (1) for clamping the front and rear ends of the turbofan engine (4) respectively. The large clamping assembly (2) and the small clamping assembly (3) are movably mounted on the tooling base (1) in the horizontal direction to achieve the horizontal displacement of the turbofan engine (4). The large clamping assembly (2) includes a lower large clamping ring sleeve (21) and an upper large clamping ring sleeve (22), which cooperate with each other to clamp the large annular diameter wall of the turbofan engine (4). The small clamping assembly (3) includes a lower small clamping ring sleeve (31) and an upper small clamping ring sleeve (32), which cooperate with each other to clamp the small annular diameter wall of the turbofan engine (4). The upper large clamping ring (22) and the upper small clamping ring (32) can be moved along the height direction to realize the height adjustment and tilting of the turbofan engine (4).

2. The clamping device for an aircraft turbofan engine according to claim 1, characterized in that: The tooling base (1) includes an operating cavity (11) and a sliding cavity (12). The sliding cavity (12) is provided with a toothed groove (121) and a displacement toothed groove (122). The large clamping assembly (2) and the small clamping assembly (3) are connected to the displacement toothed groove (122) by a displacement gear to realize the horizontal movement.

3. The clamping device for an aircraft turbofan engine according to claim 2, characterized in that: The large clamping assembly (2) includes a large clamping displacement gear (224) and a large clamping operating lever (225). The large clamping displacement gear (224) meshes with the displacement tooth groove (122), and the large clamping operating lever (225) is used to control the movement of the large clamping displacement gear (224) within the displacement tooth groove (122). The small clamping assembly (3) includes a small clamping displacement gear (324) and a small clamping operating lever (325). The small clamping displacement gear (324) meshes with the displacement tooth groove (122), and the small clamping operating lever (325) is used to control the movement of the small clamping displacement gear (324) within the displacement tooth groove (122).

4. The clamping device for an aircraft turbofan engine according to claim 1, characterized in that: The upper large clamping ring (22) is movable along the height direction via the upper large clamping telescopic rod (223); the upper small clamping ring (32) is movable along the height direction via the upper small clamping telescopic rod (323).

5. The clamping device for an aircraft turbofan engine according to claim 1, characterized in that: The tooling base (1) also includes a slide groove (111); the lower large clamping ring sleeve (21) is slidably connected to the slide groove (111) through the lower large clamping slider (211); the lower small clamping ring sleeve (31) is slidably connected to the slide groove (111) through the lower small clamping slider (311).

6. The clamping device for an aircraft turbofan engine according to claim 1, characterized in that: The lower large clamping ring (21) and the upper large clamping ring (22) are matched with the large annular diameter wall of the turbofan engine (4); the lower small clamping ring (31) and the upper small clamping ring (32) are matched with the small annular diameter wall of the turbofan engine (4).

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