A driving device for fan fatigue life test

Abstract

The utility model discloses a driving device for testing fatigue life of a fan, and relates to the field of fan testing equipment. The device comprises a bottom plate, a motor is arranged on the right side of the top of the bottom plate, a box is fixedly connected to the left side of the top of the bottom plate, a driving gear is fixedly connected to the output end of the motor, a vibration component and a rotation component are arranged inside the box, a first gear is installed on the right side of the vibration component, a second gear is installed on the right side of the rotation component, the first gear and the second gear cooperate with the driving gear, a displacement component is arranged at the bottom of the box, and the output end of the displacement component is fixedly connected to the vibration component and the rotation component. The utility model arranges the box at the output end of the motor, and arranges the vibration component and the rotation component in the box. Under the action of the displacement component, the motor drives the vibration component and the rotation component to work through the alternating cooperation of the driving gear with the first gear and the second gear. One driving device contains two functions, and the volume of the equipment is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the field of fan testing equipment, in particular to a driving device for fan fatigue life testing. Background Art

[0002] Fan blades are important parts of aircraft engines, and their mechanical properties and fatigue properties have a significant impact on the overall performance of aircraft engines. In order to further reduce the structural weight of current advanced aircraft engines, large-scale structural parts such as fan blades are mostly made of composite materials. The manufacturing process of composite parts and the performance characteristics of the composite materials themselves determine that the performance of full-size parts may be significantly different from that of small-size material samples.

[0003] The fatigue life test of a fan usually includes a vibration test and a normal use test, which requires that the driving device of the test equipment includes two working modes: vibration and rotation. However, the existing driving device for fan fatigue life test is equipped with one vibration drive and one rotation drive, which greatly increases the size of the equipment.

[0004] In order to solve the above problems, we have made improvements and proposed a driving device for fan fatigue life testing. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model provides a driving device for fan fatigue life test, comprising a base plate, a motor is arranged on the right side of the top of the base plate, a box is fixedly connected to the left side of the top of the base plate, and the output end of the motor is arranged inside the box, the output end of the motor is fixedly connected to a driving gear, a vibration component and a rotation component are arranged inside the box, a first gear is installed on the right side of the vibration component, a second gear is installed on the right side of the rotation component, the first gear and the second gear cooperate with the driving gear, a displacement component is arranged at the bottom of the box, and the output end of the displacement component is fixedly connected to the vibration component and the rotation component.

[0007] As a preferred technical solution of the utility model, the vibration component includes a first shell, a disc is rotatably connected inside the first shell, and the right end of the disc is fixedly connected to the first gear, a connecting rod is hinged on the left side of the disc, a push rod is hinged on the end of the connecting rod, and the push rod extends to the outside of the box.

[0008] As a preferred technical solution of the utility model, the rotating assembly includes a second shell, the interior of the second shell is rotatably connected to the first bevel gear, and the right end of the first bevel gear is fixedly connected to the second gear, the side of the first bevel gear is meshingly connected to the second bevel gear, the top of the second bevel gear is fixedly connected to the output shaft, and the output shaft passes through the outside of the box.

[0009] As a preferred technical solution of the utility model, the displacement assembly includes a guide rail, and the guide rail is fixedly connected to the inner bottom of the box body, the guide rail is internally slidably connected with two movable blocks, the two movable blocks are respectively fixedly connected to the bottom ends of the first shell and the second shell, the guide rail is internally rotatably connected with a threaded rod, and the threaded rod is threadedly connected to the two movable blocks.

[0010] As a preferred technical solution of the utility model, two avoidance holes are provided on the top of the box body, and the two avoidance holes are respectively matched with the output shaft and the push rod.

[0011] As a preferred technical solution of the utility model, a mounting frame is fixedly connected to the outer side of the motor, and the mounting frame is fixedly connected to the top end of the base plate by bolts.

[0012] As a preferred technical solution of the utility model, the bottom of the output shaft is rotatably connected to a fixing bracket, and the fixing bracket is fixedly connected to the inside of the second housing.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model provides a box at the output end of the motor, and a vibration component and a rotation component are provided in the box. Under the action of the displacement component, the motor drives the vibration component and the rotation component to work through the cooperation of the driving gear, the first gear and the second gear in turn. One driving device contains two functions, which greatly reduces the size of the device.

[0015] 2. In the utility model, the threaded rod is rotated manually, and the rotating threaded rod drives the movable block to move along the guide rail, thereby changing the positions of the first shell and the second shell, and rotating the meshing relationship between the first gear and the second gear and the driving gear, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a partial exploded view of the utility model;

[0019] Figure 3 It is a schematic diagram of a first housing of the utility model;

[0020] In the figure: 1, bottom plate; 2, motor; 3, mounting frame; 4, box body; 5, avoidance hole; 6, driving gear; 7, first gear; 8, second gear; 9, first housing; 10, second housing; 11, first bevel gear; 12, second bevel gear; 13, fixing frame; 14, output shaft; 15, guide rail; 16, threaded rod; 17, disc; 18, connecting rod; 19, push rod; 20, movable block. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0022] Example: Figure 1-3 As shown, a driving device for fan fatigue life test comprises a base plate 1, a motor 2 is arranged on the right side of the top of the base plate 1, a mounting frame 3 is fixedly connected to the outside of the motor 2, and the mounting frame 3 is fixedly connected to the top of the base plate 1 by bolts, a box body 4 is fixedly connected to the left side of the top of the base plate 1, and the output end of the motor 2 is arranged inside the box body 4, and the output end of the motor 2 is fixedly connected to a driving gear 6, a vibration component and a rotation component are arranged inside the box body 4, a first gear 7 is installed on the right side of the vibration component, and a second gear 8 is installed on the right side of the rotation component, the first gear 7 and the second gear 8 cooperate with the driving gear 6, and a displacement component is arranged at the bottom of the box body 4, and the output end of the displacement component is fixedly connected to the vibration component and the rotation component;

[0023] By arranging a box body 4 at the output end of the motor 2, and arranging a vibration component and a rotation component in the box body 4, under the action of the displacement component, the motor 2 drives the vibration component and the rotation component to work through the cooperation of the driving gear 6 with the first gear 7 and the second gear 8 in turn. One driving device contains two functions, which greatly reduces the size of the equipment.

[0024] Specifically, Figure 2 and Figure 3As shown, the vibration assembly includes a first shell 9, and a disk 17 is rotatably connected inside the first shell 9, and the right end of the disk 17 is fixedly connected to the first gear 7. A connecting rod 18 is hinged on the left side of the disk 17, and the hinge point is close to the side of the disk 17. A push rod 19 is hinged on the end of the connecting rod 18, and the push rod 19 penetrates to the outside of the box body 4. The first gear 7 is meshed with the driving gear 6. The motor 2 drives the disk 17 to rotate through the driving gear 6 and the first gear 7. The rotating disk 17 changes the height of the connecting rod 18, and then changes the height of the push rod 19. The cyclic rotation of the disk 17 causes the push rod 19 to reciprocate up and down to achieve a vibration effect.

[0025] Specifically, Figure 2 As shown, the rotating assembly includes a second housing 10, the interior of the second housing 10 is rotatably connected to a first bevel gear 11, and the right end of the first bevel gear 11 is fixedly connected to the second gear 8, the side of the first bevel gear 11 is meshingly connected to a second bevel gear 12, the top of the second bevel gear 12 is fixedly connected to an output shaft 14, and the output shaft 14 passes through the outside of the box body 4, the bottom of the output shaft 14 is rotatably connected to a fixing frame 13, and the fixing frame 13 is fixedly connected to the inside of the second housing 10, the second gear 8 is meshed with the driving gear 6, and the motor 2 drives the first bevel gear 11 to rotate through the driving gear 6 and the second gear 8, and the rotating first bevel gear 11 drives the output shaft 14 to rotate through the second bevel gear 12, and then outputs.

[0026] Specifically, Figure 1 As shown, the displacement assembly includes a guide rail 15, and the guide rail 15 is fixedly connected to the inner bottom of the box body 4. Two movable blocks 20 are slidably connected inside the guide rail 15. The two movable blocks 20 are respectively fixedly connected to the bottom ends of the first shell 9 and the second shell 10. A threaded rod 16 is rotatably connected inside the guide rail 15, and the threaded rod 16 is threadedly connected to the two movable blocks 20. A hand wheel is fixedly connected to the rear end of the threaded rod 16. The threaded rod 16 is manually rotated, and the rotating threaded rod 16 drives the movable block 20 to move along the guide rail 15, thereby changing the position of the first shell 9 and the second shell 10, and rotating the meshing relationship between the first gear 7 and the second gear 8 and the driving gear 6. When the first gear 7 or the second gear 8 matches the driving gear 6, the initial state cannot complete full meshing. The push rod 19 can be manually pushed or the output shaft 14 can be rotated to make the first gear 7 or the second gear 8 rotate slightly, so that the first gear 7 or the second gear 8 can be fully matched with the driving gear 6.

[0027] Specifically, Figure 1As shown, two avoidance holes 5 are provided at the top of the box body 4, and the two avoidance holes 5 cooperate with the output shaft 14 and the push rod 19 respectively. When the first shell 9 and the second shell 10 move, the push rod 19 and the output shaft 14 move accordingly. The push rod 19 and the output shaft 14 can move in the avoidance holes 5 to avoid interference with the box body 4.

[0028] Working principle: The threaded rod 16 is manually rotated, and the rotating threaded rod 16 drives the movable block 20 to move along the guide rail 15, thereby changing the positions of the first housing 9 and the second housing 10, and alternating the meshing relationship between the first gear 7 and the second gear 8 and the driving gear 6;

[0029] The motor 2 drives the disc 17 to rotate through the driving gear 6 and the first gear 7. The rotating disc 17 changes the height of the connecting rod 18, thereby changing the height of the push rod 19. The cyclic rotation of the disc 17 causes the push rod 19 to reciprocate up and down to achieve a vibration effect.

[0030] The motor 2 drives the first bevel gear 11 to rotate through the driving gear 6 and the second gear 8. The rotating first bevel gear 11 drives the output shaft 14 to rotate through the second bevel gear 12, thereby outputting output.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A fan fatigue life test drive device, comprising a base plate (1), characterized in that: A motor (2) is arranged on the right side of the top of the bottom plate (1), a box (4) is fixedly connected to the left side of the top of the bottom plate (1), and an output end of the motor (2) is arranged inside the box (4), and a driving gear (6) is fixedly connected to the output end of the motor (2), a vibration component and a rotation component are arranged inside the box (4), a first gear (7) is installed on the right side of the vibration component, and a second gear (8) is installed on the right side of the rotation component, the first gear (7) and the second gear (8) cooperate with the driving gear (6), and a displacement component is arranged at the bottom of the box (4), and the output end of the displacement component is fixedly connected to the vibration component and the rotation component.

2. A fan fatigue life test driving device according to claim 1, characterized in that: The vibration component comprises a first shell (9), the interior of which is rotatably connected to a disk (17), and the right end of the disk (17) is fixedly connected to the first gear (7), the left side of the disk (17) is hinged with a connecting rod (18), the end of the connecting rod (18) is hinged with a push rod (19), and the push rod (19) passes through the outside of the box (4).

3. A fan fatigue life test driving device according to claim 1, characterized in that: The rotating assembly comprises a second housing (10), the interior of the second housing (10) is rotatably connected to a first bevel gear (11), the right end of the first bevel gear (11) is fixedly connected to a second gear (8), the side of the first bevel gear (11) is meshingly connected to a second bevel gear (12), the top end of the second bevel gear (12) is fixedly connected to an output shaft (14), and the output shaft (14) passes through the outside of the housing (4).

4. A fan fatigue life test driving device according to claim 1, characterized in that: The displacement assembly comprises a guide rail (15), and the guide rail (15) is fixedly connected to the inner bottom of the box body (4); two movable blocks (20) are slidably connected inside the guide rail (15); the two movable blocks (20) are respectively fixedly connected to the bottom ends of the first shell (9) and the second shell (10); a threaded rod (16) is rotatably connected inside the guide rail (15), and the threaded rod (16) is threadedly connected to the two movable blocks (20).

5. A fan fatigue life test driving device according to claim 1, characterized in that: Two avoidance holes (5) are provided at the top of the box body (4), and the two avoidance holes (5) are respectively matched with the output shaft (14) and the push rod (19).

6. A fan fatigue life test driving device according to claim 1, characterized in that: A mounting frame (3) is fixedly connected to the outer side of the motor (2), and the mounting frame (3) is fixedly connected to the top of the base plate (1) by means of bolts.

7. A fan fatigue life test driving device according to claim 3, characterized in that: The bottom of the output shaft (14) is rotatably connected to a fixing frame (13), and the fixing frame (13) is fixedly connected to the inside of the second housing (10).

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