Axial flow fan blade deformation detection device

Abstract

The utility model relates to the technical field of detection equipment, in particular to an axial flow fan blade deformation detection device, which comprises a support shell, a bearing mechanism, a detection mechanism and a distance measurement mechanism, and a plurality of filter screens are uniformly and fixedly connected onto the support shell. According to the axial flow fan body detection device, the detection mechanism is arranged at the top of the bearing mechanism, a first motor is started, so that a supporting plate and a fixing rod are moved to proper positions, a rubber pad is in extrusion contact with the outer side wall of the axial flow fan body through a compression spring, and then axial flow fan bodies of different sizes can be conveniently clamped and fixed; then the height of the camera is adjusted by starting the air cylinder, the camera is used for conveniently shooting a frame image of the axial flow fan body, the relative deformation degree among the multiple blades when the axial flow fan body rotates is conveniently determined through the frame image of the axial flow fan body, and therefore the deformation amount of the blades when the axial flow fan body operates is conveniently detected; and the quality of the axial flow fan body in production can be detected conveniently.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically a device for detecting the deformation of axial flow fan blades. Background Technology

[0002] Axial flow fans, with a wide range of applications, are a type of fan where the airflow direction is the same as the fan blade axis, such as electric fans and air conditioner outdoor unit fans. They are called "axial flow" because the gas flows parallel to the fan axis. Axial flow fans are typically used in applications requiring high flow rates but low pressure. They are fixed in position and move air. However, the blades of axial flow fans are prone to deformation during operation. Excessive blade deformation can lead to changes in the inlet and outlet angles and breakage in localized areas. Therefore, after the axial flow fan is manufactured, the deformation of the blades is usually inspected to provide a basis for determining whether the fan meets quality standards. However, existing blade deformation detection devices generally use laser sensors, flash velocimeters, etc., to detect blade deformation. This method is relatively simple and prone to inaccurate results. Furthermore, some existing blade deformation detection devices are not applicable to axial flow fans of different sizes, resulting in poor practicality. Utility Model Content

[0003] The purpose of this invention is to provide a device for detecting the deformation of axial flow fan blades, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A device for detecting the deformation of axial flow fan blades, comprising:

[0006] A support shell, on which multiple filter screens are uniformly fixed;

[0007] A load-bearing mechanism is fixed to the top of the support shell;

[0008] The detection mechanism is fixed to the top of the supporting mechanism;

[0009] The ranging mechanism is fixed to the inner bottom surface of the support shell.

[0010] The bearing mechanism includes:

[0011] A circular shell is fixedly connected to the top of the supporting shell. The top of the circular shell is evenly provided with a plurality of sliding through holes, and an adjustment component is provided on the circular shell.

[0012] Multiple support plates are disposed on the top of the circular shell. A movable block is fixedly connected to the bottom of one end of each support plate, and the movable block is slidably connected to a sliding through hole at a corresponding position. A positioning component is disposed on the top of the support plate.

[0013] Preferably, the adjustment component includes:

[0014] Multiple screws are rotatably connected to the inside of the circular shell. A bevel gear is fixedly sleeved on the outer side of one end of each screw, and a movable ring is provided on the outer side of each screw. The outer wall of the movable ring is fixedly connected to the bottom of the corresponding movable block.

[0015] The conical toothed ring is rotatably connected to the inner top surface of the circular shell at its top, and the conical toothed ring meshes with multiple conical gears.

[0016] A U-shaped plate is fixedly connected to the outer wall of the circular shell. A motor is fixedly connected to the inner wall of the U-shaped plate, and the output end of the motor passes through the side wall of the circular shell and is fixedly connected to one end of the corresponding screw.

[0017] Preferably, the positioning component includes:

[0018] A fixing rod is fixedly connected at its bottom to the top of the corresponding support plate, and a rectangular groove is provided at one end of the fixing rod;

[0019] The extrusion block is slidably connected to the inside of the rectangular groove. One end of the extrusion block is fixedly connected to an inner sidewall of the rectangular groove with a compression spring, and the other end of the extrusion block is fixedly connected to a rubber pad.

[0020] Furthermore, the testing institution includes:

[0021] A cylinder, the bottom of which is fixedly connected to the top of a circular shell;

[0022] A rectangular plate is fixedly connected to the output end of the cylinder;

[0023] The camera is fixed at the top and at the middle position of the bottom of the rectangular plate.

[0024] Preferably, a telescopic plate is fixedly connected to the bottom of one end of the rectangular plate, and the bottom of the telescopic plate is fixedly connected to the top of the circular shell.

[0025] Furthermore, the ranging mechanism includes:

[0026] Motor 2, one end of which is fixedly connected to the inner wall of the support shell;

[0027] Screw 2, one end of which is fixedly connected to the output end of motor 2;

[0028] The movable rod is screwed into the outer side of the screw rod II, and the movable rod is in contact with the inner bottom surface of the support shell;

[0029] The laser rangefinder body is fixedly connected to one end of the moving rod.

[0030] Compared with the prior art, the beneficial effects of this utility model are:

[0031] 1. By setting a detection mechanism on the top of the bearing mechanism, and by starting the motor, the support plate and the fixing rod are moved to the appropriate position. The compression spring makes the rubber pad press against the outer wall of the axial flow fan body, which facilitates the clamping and fixing of axial flow fan bodies of different sizes. Then, by starting the cylinder, the height of the camera is adjusted, and the camera is used to capture frame images of the axial flow fan body. The frame images of the axial flow fan body can be used to determine the relative deformation degree between the multiple blades when the axial flow fan body rotates, which facilitates the detection of the deformation of the blades when the axial flow fan body is running, and thus facilitates the detection of the quality of the axial flow fan body after production.

[0032] 2. By fixing a ranging mechanism on the inner bottom surface of the support shell and using the laser rangefinder body to monitor the distance between it and a certain point on the blade of the axial flow fan body in real time, the deformation of the blades during the operation of the axial flow fan body can be determined. Furthermore, by starting the second motor, the second screw rotates, thereby moving the moving rod and the laser rangefinder body to the appropriate position. This allows the ranging mechanism to be applicable to axial flow fan bodies of different sizes, improving the practicality of the axial flow fan blade deformation detection device. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0034] Figure 2 This is a schematic diagram of the load-bearing mechanism structure in this utility model;

[0035] Figure 3 yes Figure 2 Enlarged view of a portion of point A in the middle;

[0036] Figure 4 This is a schematic diagram of the circular shell structure in this utility model;

[0037] Figure 5 This is a schematic diagram showing the positional relationship between the fixing rod and the extrusion block in this utility model;

[0038] Figure 6 This is a schematic diagram of the ranging mechanism in this utility model.

[0039] In the diagram: 100, Support shell; 110, Filter screen; 200, Bearing mechanism; 210, Round shell; 211, Sliding through hole; 220, Support plate; 221, Moving block; 230, Screw one; 231, Bevel gear; 232, Moving ring; 240, Bevel gear ring; 250, C-shaped plate; 251, Motor one; 260, Fixed rod; 261, Rectangular groove; 270, Extrusion block; 271, Compression spring; 272, Rubber pad; 300, Detection mechanism; 310, Cylinder; 320, Rectangular plate; 330, Telescopic plate; 340, Camera; 400, Distance measuring mechanism; 410, Motor two; 420, Screw two; 430, Moving rod; 440, Laser rangefinder body; 500, Axial flow fan body. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Please see Figure 1-6 In this embodiment of the present invention, a device for detecting the deformation of axial flow fan blades includes: a support shell 100, a bearing mechanism 200, a detection mechanism 300, and a ranging mechanism 400. A plurality of filter screens 110 are uniformly fixed on the support shell 100. The bearing mechanism 200 is fixed to the top of the support shell 100, the detection mechanism 300 is fixed to the top of the bearing mechanism 200, and the ranging mechanism 400 is fixed to the inner bottom surface of the support shell 100.

[0042] Specifically, the bearing mechanism 200 facilitates the fixing of axial flow fan bodies 500 of different sizes, and the detection mechanism 300 facilitates the capture of frame images of the axial flow fan body 500. The frame images of the axial flow fan body 500 facilitate the determination of the relative deformation degree between multiple blades when the axial flow fan body 500 rotates, thereby determining the operating state of the blades. Furthermore, the distance measuring mechanism 400 facilitates the monitoring of the distance between the blades on the axial flow fan body 500, thereby facilitating the monitoring of the deformation of the blades during operation, thus improving the practicality of the axial flow fan blade deformation detection device.

[0043] Example 1

[0044] like Figure 1-5As shown, in this embodiment, the supporting mechanism 200 includes: a circular shell 210 and multiple support plates 220. The circular shell 210 is fixedly connected to the top of the support shell 100. Multiple sliding through holes 211 are evenly provided on the top of the circular shell 210. An adjustment component is provided on the circular shell 210. Multiple support plates 220 are all provided on the top of the circular shell 210. A moving block 221 is fixedly connected to the bottom of one end of the support plate 220, and the moving block 221 is slidably connected to the sliding through hole 211 at the corresponding position. A positioning component is provided on the top of the support plate 220. The adjustment component includes: multiple screws 230, a conical gear ring 240, and a U-shaped plate 250. Multiple screws 230 are rotatably connected to the inside of the circular shell 210. A conical gear 231 is sleeved and fixed on the outer side of one end of the screw 230, and a moving ring 232 is provided on the outer side of the screw 230. The outer wall of 232 is fixedly connected to the bottom of the corresponding moving block 221. The top of the conical toothed ring 240 is rotatably connected to the inner top surface of the circular shell 210, and the conical toothed ring 240 meshes with multiple conical gears 231. The chamfered plate 250 is fixedly connected to the outer side of the circular shell 210. The inner side wall of the chamfered plate 250 is fixedly connected to a motor 251, and the output end of the motor 251 passes through the side wall of the circular shell 210 and is fixedly connected to one end of the corresponding screw 230. The detection mechanism 300 includes: a cylinder 310, a rectangular plate 320 and a camera 340. The bottom of the cylinder 310 is fixedly connected to the top of the circular shell 210. The rectangular plate 320 is fixedly connected to the output end of the cylinder 310. The top of the camera 340 is fixedly connected to the middle position of the bottom of the rectangular plate 320. A telescopic plate 330 is fixedly connected to the bottom of one end of the rectangular plate 320, and the bottom of the telescopic plate 330 is fixedly connected to the top of the circular shell 210.

[0045] In this embodiment, when the axial flow fan body 500 is placed on top of multiple support plates 220, the motor 251 is started, which drives the corresponding screw 230 to rotate. The conical gear ring 240 meshes with multiple conical gears 231, thereby causing the multiple screws 230 to rotate. This, in turn, moves the multiple moving rings 232, moving blocks 221, and support plates 220 to appropriate positions. The multiple support plates 220, now in appropriate positions, facilitate the support of axial flow fan bodies 500 of different sizes. Then, by starting the cylinder 310, the height of the rectangular plate 320 and the camera 340 can be easily adjusted. The telescopic plate 330 provides auxiliary support for the rectangular plate 320, and the camera 340 can capture frame images of the axial flow fan body 500. The frame images of the axial flow fan body 500 can be used to determine the relative deformation degree between the multiple blades when the axial flow fan body 500 rotates, thereby facilitating the detection of the deformation of the blades when the axial flow fan body 500 is running, and further facilitating the detection of the quality of the axial flow fan body 500 after production.

[0046] like Figure 5As shown, in this embodiment, the positioning component includes a fixing rod 260 and a pressing block 270. The bottom of the fixing rod 260 is fixedly connected to the top of the corresponding support plate 220. A rectangular groove 261 is provided at one end of the fixing rod 260. The pressing block 270 is slidably connected to the inside of the rectangular groove 261. A compression spring 271 is fixedly connected between one end of the pressing block 270 and an inner sidewall of the rectangular groove 261. A rubber pad 272 is fixedly connected to the other end of the pressing block 270.

[0047] In practice, the movable support plate 220 drives the fixed rod 260 to move, and the compression spring 271 makes the rubber pad 272 press against the outer wall of the axial flow fan body 500, thereby using multiple positioning components to facilitate clamping and fixing of the axial flow fan body 500.

[0048] Example 2

[0049] Based on Example 1, in order to improve the detection effect on the blades of the axial flow fan body 500.

[0050] like Figure 6 As shown, in this embodiment, the ranging mechanism 400 includes: a second motor 410, a second screw 420, a moving rod 430, and a laser rangefinder body 440. One end of the second motor 410 is fixedly connected to the inner wall of the support shell 100, one end of the second screw 420 is fixedly connected to the output end of the second motor 410, the moving rod 430 is screwed to the outer side of the second screw 420, the moving rod 430 is in contact with the inner bottom surface of the support shell 100, and the laser rangefinder body 440 is fixedly connected to one end of the moving rod 430.

[0051] In practice, the laser rangefinder body 440 is used to monitor the distance between itself and a certain point on the blade of the axial flow fan body 500 in real time, thereby determining the deformation of the blades when the axial flow fan body 500 is running. By starting the second motor 410, the second screw 420 is rotated, which in turn moves the moving rod 430 and the laser rangefinder body 440 to the appropriate position, so that the ranging mechanism 400 can be applied to axial flow fan bodies 500 of different sizes.

[0052] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0053] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for detecting the deformation of axial flow fan blades, characterized in that, include: A support shell (100) on which a plurality of filter screens (110) are uniformly fixed; The supporting mechanism (200) is fixed to the top of the supporting shell (100); The detection mechanism (300) is fixed to the top of the supporting mechanism (200); The ranging mechanism (400) is fixed to the inner bottom surface of the support shell (100); The supporting mechanism (200) includes: A circular shell (210) is fixedly connected to the top of the support shell (100). The top of the circular shell (210) is evenly provided with a plurality of sliding through holes (211). An adjustment component is provided on the circular shell (210). Multiple support plates (220) are disposed on the top of the circular shell (210). A movable block (221) is fixedly connected to the bottom of one end of the support plate (220), and the movable block (221) is slidably connected to the sliding through hole (211) at the corresponding position. A positioning component is disposed on the top of the support plate (220).

2. The device for detecting axial flow fan blade deformation according to claim 1, characterized in that, The adjustment component includes: Multiple screws (230) are rotatably connected to the inside of the circular shell (210). A bevel gear (231) is sleeved and fixed on the outer side of one end of each screw (230). A movable ring (232) is provided on the outer side of each screw (230). The outer wall of the movable ring (232) is fixedly connected to the bottom of the corresponding movable block (221). The top of the conical toothed ring (240) is rotatably connected to the inner top surface of the circular shell (210), and the conical toothed ring (240) meshes with a plurality of conical gears (231); The U-shaped plate (250) is fixedly connected to the outer side wall of the circular shell (210). The inner side wall of the U-shaped plate (250) is fixedly connected to a motor (251), and the output end of the motor (251) passes through the side wall of the circular shell (210) and is fixedly connected to one end of the corresponding screw (230).

3. The device for detecting axial flow fan blade deformation according to claim 1, characterized in that, The positioning component includes: The bottom of the fixed rod (260) is fixedly connected to the top of the corresponding support plate (220), and a rectangular groove (261) is provided at one end of the fixed rod (260); The extrusion block (270) is slidably connected to the inside of the rectangular groove (261). One end of the extrusion block (270) is fixedly connected to an inner sidewall of the rectangular groove (261) with a compression spring (271), and the other end of the extrusion block (270) is fixedly connected to a rubber pad (272).

4. The device for detecting axial flow fan blade deformation according to claim 1, characterized in that, The testing organization (300) includes: Cylinder (310), the bottom of which is fixedly connected to the top of the round shell (210); A rectangular plate (320) is fixedly connected to the output end of the cylinder (310); The top of the camera (340) is fixed to the middle position of the bottom of the rectangular plate (320).

5. The device for detecting axial flow fan blade deformation according to claim 4, characterized in that, A telescopic plate (330) is fixedly connected to the bottom of one end of the rectangular plate (320), and the bottom of the telescopic plate (330) is fixedly connected to the top of the circular shell (210).

6. The device for detecting axial flow fan blade deformation according to claim 1, characterized in that, The ranging mechanism (400) includes: Motor 2 (410) is fixed at one end to the inner wall of the support shell (100); Screw 2 (420) has one end fixedly connected to the output end of motor 2 (410); The movable rod (430) is screwed to the outer side of the screw (420), and the movable rod (430) is in contact with the inner bottom surface of the support shell (100); The laser rangefinder body (440) is fixedly connected to one end of the moving rod (430).

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