Mobile aero-engine test bed

Abstract

The utility model discloses a mobile aero-engine test bed, which relates to the field of engine test bed structures and comprises a mobile box, a rack arranged at the top of the mobile box, a mobile table arranged at the bottom of the rack, a lifting device arranged on the mobile table, and a lifting device arranged at the bottom of the mobile box and arranged at the bottom of the mobile table. The mobile aero-engine test bed can effectively solve the problems that a traditional fixed test bed is large in occupied space, inconvenient to move and the like, is particularly suitable for engine testing requirements in narrow space, improves the working efficiency, and reduces the operation difficulty and cost.

Description

Technical Field

[0001] The utility model relates to the field of engine test bench structures, in particular to a mobile aviation engine test bench. Background Art

[0002] In the field of aircraft engine R&D and testing, aircraft engine test benches are indispensable and important equipment. Traditional test benches are fixedly installed on the ground, occupying a large space. In addition, the fixed installation makes it difficult to flexibly adjust or redeploy the test bench after installation. It needs to be disassembled, transported, and reinstalled to meet the testing needs of multiple sites, which increases transportation costs and time costs.

[0003] At the same time, during the hoisting and installation process, traditional methods rely on large lifting equipment, such as cranes and gantry cranes, which are bulky, have high maintenance costs, and are limited in operation in a small space, posing safety risks. Especially in limited spaces such as containers, traditional hoisting methods are complex and inefficient. Utility Model Content

[0004] The purpose of the utility model is to provide a mobile aircraft engine test bench, which can effectively solve the problems of large space occupation and inconvenient mobility existing in traditional fixed test benches, and is particularly suitable for engine testing needs in a small space, thereby improving work efficiency and reducing operation difficulty and cost.

[0005] The above-mentioned optimized structure of the utility model is realized through the following technical solutions: A mobile aircraft engine test bench, comprising a mobile box, a frame is provided on the top wall of the mobile box, a mobile platform is provided at the bottom of the frame, a lifting device is provided on the mobile platform, a lifting device is provided on the bottom wall of the mobile box, and the lifting device is arranged at the bottom of the mobile platform.

[0006] In some embodiments, the platform includes a fixed frame, a movable frame is disposed on the fixed frame, a plurality of adjustment bolts are disposed between the movable frame and the fixed frame, a mounting seat is disposed at the bottom of the movable frame, and an engine is detachably connected to the mounting seat.

[0007] In some embodiments, the fixed frame includes two L-shaped plates, the movable frame is arranged between the two L-shaped plates, one end of the adjusting bolt passes through the L-shaped plates and is rotatably connected to the movable frame, and the adjusting bolt is threadedly engaged with the L-shaped plates.

[0008] In some embodiments, the mounting seat includes two mounting rods, and the two mounting rods are symmetrically arranged at the bottom of the movable frame. A mounting block is provided at the bottom of the mounting rod, and a mounting hole is penetrated by the mounting block.

[0009] In some embodiments, at least three reinforcement plates are provided at both ends of the movable frame.

[0010] In some embodiments, a cushion block is provided on one side of the movable frame, and an arc-shaped opening is provided at the bottom of the cushion block.

[0011] In some embodiments, the mobile platform includes a mobile frame, the lifting device is provided on the mobile frame, and universal wheels are provided at the four corners of the mobile frame.

[0012] In some embodiments, the lifting device includes a front jack and two rear jacks. The front jack is arranged in the middle of one side of the mobile platform, and the two rear jacks are symmetrically arranged on the other side of the mobile platform. A sleeper is arranged on the top of the front jack, and a fixed seat is arranged on the top of the rear jack.

[0013] In some embodiments, the lifting device includes two movable plates, a hydraulic rod is provided on one side of the movable plate, a rotating plate is provided on the top of the hydraulic rod, one side of the rotating plate is hinged to the side of the movable plate away from the hydraulic rod, and the other side is hinged to a groove-shaped clamping plate, two connecting rods are symmetrically provided at both ends of the rotating plate, one side of the connecting rod is hinged to the groove-shaped clamping plate, and the other side is hinged to the side of the movable plate away from the hydraulic rod; the groove-shaped clamping plate is detachably connected to the movable platform.

[0014] In some embodiments, four moving wheels are symmetrically arranged at the bottom of the moving plate.

[0015] In summary, the utility model has the following beneficial effects:

[0016] This type of mobile aircraft engine test bench can achieve rapid alignment and installation between the engine and the test bench through the mobile platform, lifting device and hoisting device, shorten the installation and debugging cycle, improve the convenience of engine installation and debugging on the mobile box, reduce space occupancy, and can flexibly adjust or redeploy the aircraft engine test bench by moving and adjusting the mobile box, which can meet the testing needs of multiple sites and save time; the mobile design allows the test bench to be flexibly moved in a small space, while raising the engine position to save space below; and there is no need for additional large lifting equipment, which reduces manpower input and operation complexity, and reduces overall maintenance and operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 The structural diagram of the utility model without the moving box;

[0019] Figure 3 This is a structural diagram of the bench of the utility model;

[0020] Figure 4It is an assembly structure diagram of the mobile platform, lifting device and lifting device of the utility model.

[0021] In the figure: 1. moving box; 2. stand; 21. fixed frame; 22. moving frame; 23. adjusting bolt; 24. mounting seat; 25. cushion block; 3. moving platform; 31. moving frame; 32. universal wheel; 4. lifting device; 41. front jack; 42. rear jack; 43. sleeper; 44. fixed seat; 5. lifting device; 51. moving plate; 52. connecting rod; 53. rotating plate; 54. grooved card plate; 55. moving wheel. DETAILED DESCRIPTION

[0022] 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.

[0023] refer to Figure 1-4 A mobile aircraft engine test bench includes a mobile box 1. The mobile box 1 is the basic structure of the test bench and needs to be able to bear the weight of a test bench 2 and an engine and maintain stability. The mobile box 1 can be a container. The top wall of the mobile box 1 is provided with a test bench 2. The test bench 2 includes a fixed frame 21 and a movable frame 22. The fixed frame 21 is a fixed part, which is installed on the top of the mobile box 1 and can be fixed by welding or by a bolt assembly. The movable frame 22 is connected to the fixed frame 21 by a plurality of adjusting bolts 23. Specifically, the fixed frame 21 includes two L-shaped plates, and the movable frame 22 is provided between the two L-shaped plates. One end of the adjusting bolt 23 passes through the L-shaped plate and is rotatably connected to the movable frame 22, and the adjusting bolt 23 is threadedly matched with the L-shaped plate. By rotating the adjusting bolt 23, the position of the threaded matching of the adjusting bolt 23 and the L-shaped plate can be adjusted, thereby realizing the adjustment of the horizontal distance between the movable frame 22 and the fixed frame 21; a mounting seat 24 is provided at the bottom of the movable frame 22, and the mounting seat 24 includes two symmetrically arranged mounting rods, and a mounting block is provided at the bottom of the mounting rod. A mounting hole is penetrated on the mounting block to facilitate connection with the mounting bolts of the engine, thereby realizing the detachable connection of the engine on the mounting seat 24.

[0024] A mobile platform 3 is provided at the bottom of the platform 2, and the mobile platform 3 includes a mobile frame 31, and a lifting device 4 is provided on the mobile frame 31. Universal wheels 32 are provided at the four corners of the mobile frame 31 to facilitate the movement of the mobile platform 3; a lifting device 4 is provided on the mobile platform 3, and the lifting device 4 is installed on the mobile frame 31 to adjust the height of the engine; a lifting device 5 is provided on the inner bottom wall of the mobile box 1, and the lifting device 5 is arranged at the bottom of the mobile platform 3 to lift the mobile platform 3.

[0025] In some embodiments, at least three reinforcing plates are provided at both ends of the moving frame 22 . After the engine is installed, the moving frame 22 can be fixed to the moving box 1 using a bolt assembly, thereby enhancing the installation stability of the engine on the moving frame 22 .

[0026] In some embodiments, a pad 25 is provided on one side of the moving frame 22, and an arc-shaped opening is provided at the bottom of the pad 25. The arc-shaped opening is adapted to the shape of the top of the engine, and can be limited during the engine lifting process to improve the alignment accuracy between the engine and the test bench 2.

[0027] In some embodiments, the lifting device 4 includes a front jack 41 and two rear jacks 42. The front jack 41 is arranged in the middle of one side of the mobile platform 3, and the two rear jacks 42 are symmetrically arranged on the other side of the mobile platform 3. A sleeper 43 is provided on the top of the front jack 41 to support the front of the engine. A fixed seat 44 is provided on the top of the rear jack 42 to support the rear of the engine. The engine and the sleeper 43 and the fixed seat 44 can be fixed by bolt assemblies to prevent the engine from shaking and causing unstable center of gravity during the lifting process of the engine driven by the lifting device 4.

[0028] In some embodiments, the lifting device 5 includes two movable plates 51, a hydraulic rod is provided on one side of the movable plate 51, a rotating plate 53 is provided on the top of the hydraulic rod, one side of the rotating plate 53 is hinged to the side of the movable plate 51 away from the hydraulic rod, and the other side is hinged to a groove-shaped clamping plate 54, two connecting rods 52 are symmetrically provided at both ends of the rotating plate 53, one side of the connecting rod 52 is hinged to the groove-shaped clamping plate 54, and the other side is hinged to the side of the movable plate 51 away from the hydraulic rod; the groove-shaped clamping plate 54 is detachably connected to the movable platform 3, and the rotating plate 53 drives the groove-shaped clamping plate 54 to rotate through the hydraulic rod, thereby lifting the movable platform 3 on the groove-shaped clamping plate 54, and two limit grooves can be provided at the bottom of the movable frame 31, the limit grooves are plugged into and matched with the groove-shaped clamping plate 54, and are fixed by a bolt assembly, so as to maintain the stability of the engine following the lifting process of the movable platform 3.

[0029] In some embodiments, four moving wheels 55 are symmetrically provided at the bottom of the moving plate 51 to facilitate the movement of the lifting device 5 .

[0030] When in use, move the lifting device 5, move the two moving plates 51 to the position of the bottom of the mobile box 1 corresponding to the stand 2. When the engine overhaul is completed, fix the engine on the lifting device 4, push the mobile platform 3 carrying the lifting device 4 to the top of the lifting device 5, and the operator uses the remote control to control the lifting so that the grooved card plate 54 rises slowly; when the grooved card plate 54 contacts the mobile frame 31, use the bolt assembly to fix the grooved card plate 54 and the mobile frame 31; by adjusting the adjusting bolt 23, align the engine with the mounting hole at the bottom of the stand 2.

[0031] The lifting device 5 continues to work, slowly lifting the moving platform 3 and the engine upwards, and then the front jack 41 and the rear jack 42 on the moving platform 3 jointly lift the engine. Since the hydraulic oil in the jack has a certain pressure, the mechanism no longer moves and the engine can be kept parked in the air. The engine is fixed to the platform 2 with bolts, and the connection mechanism between the engine and the lifting device 4 is removed. The lifting device 5 is controlled by a remote control, so that the lifting device 5 is slowly lowered until it reaches the specified position, and the device is reset.

[0032] 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. A mobile aircraft engine test bench, characterized in that: It comprises a moving box (1), the top wall of the moving box (1) is provided with a stand (2), the bottom of the stand (2) is provided with a moving platform (3), the moving platform (3) is provided with a lifting device (4), the bottom wall of the moving box (1) is provided with a lifting device (5), and the lifting device (5) is arranged at the bottom of the moving platform (3); The lifting device (4) comprises a front jack (41) and two rear jacks (42), wherein the front jack (41) is arranged in the middle of one side of the moving platform (3), and the two rear jacks (42) are symmetrically arranged on the other side of the moving platform (3), a sleeper (43) is arranged on the top of the front jack (41), and a fixing seat (44) is arranged on the top of the rear jack (42).

2. A mobile aircraft engine test bench according to claim 1, characterized in that: The platform (2) comprises a fixed frame (21), a movable frame (22) is provided on the fixed frame (21), a plurality of adjustment bolts (23) are provided between the movable frame (22) and the fixed frame (21), a mounting seat (24) is provided at the bottom of the movable frame (22), and an engine is detachably connected to the mounting seat (24).

3. A mobile aircraft engine test bench according to claim 2, characterized in that: The fixed frame (21) comprises two L-shaped plates, the movable frame (22) is arranged between the two L-shaped plates, one end of the adjusting bolt (23) passes through the L-shaped plate and is rotatably connected to the movable frame (22), and the adjusting bolt (23) is threadedly engaged with the L-shaped plate.

4. The mobile aircraft engine test bench according to claim 2, characterized in that: The mounting seat (24) comprises two mounting rods, the two mounting rods are symmetrically arranged at the bottom of the movable frame (22), a mounting block is provided at the bottom of the mounting rod, and a mounting hole is penetrated through the mounting block.

5. The mobile aircraft engine test bench according to claim 2, characterized in that: At least three reinforcement plates are provided at both ends of the moving frame (22).

6. The mobile aircraft engine test bench according to claim 2, characterized in that: A cushion block (25) is provided on one side of the movable frame (22), and an arc-shaped opening is provided at the bottom of the cushion block (25).

7. The mobile aircraft engine test bench according to claim 1, characterized in that: The mobile platform (3) comprises a mobile frame (31), the mobile frame (31) is provided with the lifting device (4), and universal wheels (32) are provided at the four corners of the mobile frame (31).

8. The mobile aircraft engine test bench according to claim 1, characterized in that: The lifting device (5) comprises two movable plates (51), one side of the movable plate (51) is provided with a hydraulic rod, the top of the hydraulic rod is provided with a rotating plate (53), one side of the rotating plate (53) is hinged to the side of the movable plate (51) away from the hydraulic rod, and the other side is hinged to a groove-shaped clamping plate (54), two connecting rods (52) are symmetrically provided at both ends of the rotating plate (53), one side of the connecting rod (52) is hinged to the groove-shaped clamping plate (54), and the other side is hinged to the side of the movable plate (51) away from the hydraulic rod; the groove-shaped clamping plate (54) is detachably connected to the movable platform (3).

9. The mobile aircraft engine test bench according to claim 8, characterized in that: Four moving wheels (55) are symmetrically arranged at the bottom of the moving plate (51).

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