A device for detecting the inner wall of a flow guide cylinder

Abstract

This utility model relates to the field of detection technology for the inner wall of a flow guide cylinder, and more particularly to a device for detecting the inner wall of a flow guide cylinder. The technical solution includes a circular base and a long strip base. The long strip base is fixed to the side wall of the circular base. A rotating plate is rotatably connected to the upper end of the circular base. A drive motor for rotating the rotating plate is fixed inside the circular base. Three locking blocks are slidably connected to the upper end of the rotating plate in a circumferential array. A drive assembly for synchronously sliding the locking blocks is installed inside the rotating plate. A lifting frame is installed at the upper end of the long strip base. A telescopic cylinder is fixed between the bottom of the lifting frame and the long strip base. A telescopic rod is installed at the end of the lifting frame near the circular base. This utility model ensures that the detection rotating cylinder is tightly attached to the inner wall of the cylinder. When the cylinder rotates, if the inner wall is uneven, the detection pen will draw a line segment of a certain length on the drawing board, thereby achieving the purpose of rapid detection.

Description

Technical Field

[0001] This utility model relates to the field of detection technology for the inner wall of a flow guide cylinder, specifically a device for detecting the inner wall of a flow guide cylinder. Background Technology

[0002] Inspection of the inner wall of the fairing cylinder is a crucial step in ensuring its structural integrity and functionality. The airtightness testing method for the surface treatment layer of the composite material cylinder inner wall has been widely used in aerospace, automobile manufacturing and other fields to ensure the sealing and durability of the cylinder.

[0003] When inspecting the flatness of the inner wall of a cylinder, a special device is used to directly contact the inner wall of the cylinder to measure its flatness. This method is suitable for scenarios with high precision requirements and can effectively identify areas with uneven surfaces. However, it requires the use of special measuring tools, is relatively cumbersome and costly to operate, and is not very effective for detecting the lateral deviation of the inner ring. It requires some data analysis and is generally quite difficult. Utility Model Content

[0004] The purpose of this invention is to provide a device for detecting the inner wall of a flow guide cylinder, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a circular base and a long strip base, characterized in that: the long strip base is fixed to the side wall of the circular base; a rotating plate is rotatably connected to the upper end of the circular base; a drive motor for rotating the rotating plate is fixed inside the circular base; a locking block is slidably connected to the upper end of the rotating plate; three locking blocks are arranged in a circumferential array; a drive assembly for synchronously sliding the locking blocks is provided inside the rotating plate; a lifting frame is installed at the upper end of the long strip base; a telescopic cylinder is fixed between the bottom of the lifting frame and the long strip base; a telescopic rod is installed at one end of the lifting frame near the circular base; a detection rotating cylinder is rotatably connected to the lower end of the telescopic rod; and a line-drawing detection assembly is provided at the upper end of the lifting frame.

[0006] Preferably, the drive assembly includes a sliding groove and a central groove. The sliding groove is formed inside the rotating plate and is aligned with the locking block. The central groove is formed at the center of the rotating plate. A threaded rod is rotatably connected inside each sliding groove. The bottom of the locking block is slidably connected inside the sliding groove and threadedly connected to the threaded rod.

[0007] Preferably, the threaded rods are located in the center groove at one end and are each fixed with a driven bevel gear. A servo motor is fixed at the center of the upper end of the rotating plate. The output end of the servo motor is located in the center groove and is fixed with a drive bevel gear that meshes with the driven bevel gear.

[0008] Preferably, the lifting frame has a telescopic groove, and a connecting spring is fixed between the inner sidewall of the telescopic groove and the telescopic rod.

[0009] Preferably, the line drawing detection component includes an extension slot, a column, a detection pen, and a drawing board. The extension slot is formed on the upper side wall of the telescopic slot and is a long strip structure. The column is fixed on the telescopic rod and passes through the extension slot. The detection pen is fixed on the upper end of the column. The drawing board is fixed on the upper end of the lifting frame and abuts against the end of the detection pen.

[0010] Preferably, a side plate is fixed at the upper end of the elongated base and at the position aligned with the four corners of the lifting frame, a guide groove is provided on the inner side of the side plate, and a limit plate is fixed at the four corners of the lifting frame and at the position aligned with the guide groove.

[0011] Compared with the prior art, the beneficial effect of this utility model is that by closely adhering the detection rotating cylinder to the inner wall of the cylinder, if the inner wall is uneven when the cylinder rotates, the detection pen will draw a line segment of a certain length on the drawing board, thereby achieving the purpose of rapid detection. Attached Figure Description

[0012] Figure 1 This is a top view schematic diagram of the inner wall detection device of the flow guide cylinder according to the present invention;

[0013] Figure 2 This is a schematic diagram of the internal structure of the rotating plate of the inner wall detection device for the flow guide cylinder of this utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of the lifting frame of the inner wall detection device for the flow guide cylinder of this utility model;

[0015] Figure 4 This is a schematic diagram of the overall structure of the lifting block of the inner wall detection device of the flow guide cylinder of this utility model.

[0016] In the diagram: 1. Circular base; 2. Long strip base; 21. Side plate; 22. Guide groove; 3. Rotating plate; 4. Locking block; 5. Sliding groove; 51. Threaded rod; 52. Center groove; 53. Driven bevel gear; 54. Servo motor; 55. Drive bevel gear; 6. Lifting frame; 61. Telescopic rod; 62. Detection drum; 63. Telescopic groove; 64. Connecting spring; 65. Limiting side plate; 7. Column; 71. Detection pen; 72. Drawing board; 73. Extension groove; 8. Telescopic cylinder. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-4 This utility model provides a technical solution: it includes a circular base 1 and a long base 2. The long base 2 is fixed to the side wall of the circular base 1. A rotating plate 3 is rotatably connected to the upper end of the circular base 1. A drive motor that drives the rotating plate 3 to rotate is fixed inside the circular base 1. A locking block 4 is slidably connected to the upper end of the rotating plate 3. Three locking blocks 4 are arranged in a circumferential array. A drive assembly that drives the locking blocks 4 to slide synchronously is provided inside the rotating plate 3. A lifting frame 6 is installed on the upper end of the long base 2. A telescopic cylinder 8 is fixed between the bottom of the lifting frame 6 and the long base 2. A telescopic rod 61 is installed on one end of the lifting frame 6 near the circular base 1. A telescopic groove 63 is opened inside the lifting frame 6. A connecting spring 64 is fixed between the inner side wall of the telescopic groove 63 and the telescopic rod 61. A detection rotating cylinder 62 is rotatably connected to the lower end of the telescopic rod 61. A line drawing detection assembly is provided on the upper end of the lifting frame 6.

[0019] The drive assembly includes a sliding groove 5 and a central groove 52. The sliding groove 5 is located inside the rotating plate 3 and is aligned with the locking block 4. The central groove 52 is located at the center of the rotating plate 3. Threaded rods 51 are rotatably connected to each sliding groove 5. The bottom of the locking block 4 is slidably connected to the sliding groove 5 and threadedly connected to the threaded rods 51. One end of the threaded rods 51 is located in the central groove 52, and a driven bevel gear 53 is fixed thereon. A servo motor 54 is fixed at the center of the upper end of the rotating plate 3. The output end of the servo motor 54 is located in the central groove 52 and a drive bevel gear 55 that meshes with the driven bevel gear 53 is fixed thereon.

[0020] The line drawing detection assembly includes an extension slot 73, a column 7, a detection pen 71, and a drawing board 72. The extension slot 73 is located on the upper side wall of the telescopic slot 63 and is a long strip structure. The column 7 is fixed on the telescopic rod 61 and passes through the extension slot 73. The detection pen 71 is fixed on the upper end of the column 7. The drawing board 72 is fixed on the upper end of the lifting frame 6 and abuts against the end of the detection pen 71. A side plate 21 is fixed on the upper end of the long strip base 2 and aligned with the four corners of the lifting frame 6. A guide groove 22 is provided on the inner side of the side plate 21. Limiting side plates 65 are fixed at the four corners of the lifting frame 6 and aligned with the guide groove 22.

[0021] Working principle: First, connect the entire device to an external power source. Then, place the annular flow guide shroud onto the rotating plate 3 and clamp it in place using the locking block 4. Next, pull the telescopic rod 61 to extend the detection cylinder 62 into the flow guide shroud, where it abuts against the inner wall. Finally, rotate the rotating plate 3 to make the flow guide shroud rotate synchronously. If the inside of the flow guide shroud is flat and the inner and outer surfaces are concentric circles, the telescopic rod 61 will not extend or retract. Otherwise, the telescopic rod 61 will pull the connecting spring 64 to extend or retract, which will cause the column 7 and the detection pen 71 to extend or retract, leaving a straight line mark on the drawing board 72, thus achieving the purpose of detection. The operation is simple and convenient. It can perform detection tasks efficiently. During the process, the rotation of the output end of the servo motor 54 can drive the drive bevel gear 55 to rotate. Then, through the transmission of the driven bevel gear 53, the threaded rod 51 can be driven to rotate, which in turn drives the locking block 4 to slide. Furthermore, by pulling the telescopic rod 61, the detection drum 62 can be pressed against the inner wall of the guide shroud while the connecting spring 64 is stretched. The tension of the connecting spring 64 can keep the detection drum 62 pressed against the inner wall of the guide shroud. In addition, the telescopic cylinder 8 can be used to drive the lifting frame 6 to move up and down, which can facilitate the installation and removal of the guide shroud.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the inner wall of a flow guide cylinder, comprising a circular base (1) and an elongated base (2), characterized in that: The elongated base (2) is fixed to the side wall of the circular base (1). A rotating plate (3) is rotatably connected to the upper end of the circular base (1). A drive motor that drives the rotating plate (3) to rotate is fixed inside the circular base (1). A locking block (4) is slidably connected to the upper end of the rotating plate (3). Three locking blocks (4) are arranged in a circular array. A drive assembly that drives the locking blocks (4) to slide synchronously is provided inside the rotating plate (3). A lifting frame (6) is installed on the upper end of the elongated base (2). A telescopic cylinder (8) is fixed between the bottom of the lifting frame (6) and the elongated base (2). A telescopic rod (61) is installed on one end of the lifting frame (6) near the circular base (1). A detection rotating cylinder (62) is rotatably connected to the lower end of the telescopic rod (61). A line drawing detection assembly is provided on the upper end of the lifting frame (6).

2. The device for detecting the inner wall of the fairing barrel according to claim 1, characterized in that: The drive assembly includes a sliding groove (5) and a center groove (52). The sliding groove (5) is opened in the rotating plate (3) and is aligned with the locking block (4). The center groove (52) is opened at the center of the rotating plate (3). A threaded rod (51) is rotatably connected in the sliding groove (5). The bottom of the locking block (4) is slidably connected in the sliding groove (5) and threadedly connected to the threaded rod (51).

3. The device for detecting the inner wall of the fairing barrel according to claim 2, characterized in that: The threaded rod (51) is located in the center groove (52) at one end, and both are fixed with driven bevel gears (53). The servo motor (54) is fixed at the center of the upper end of the rotating plate (3). The output end of the servo motor (54) is located in the center groove (52), and is fixed with a drive bevel gear (55) that meshes with the driven bevel gear (53).

4. The device for detecting the inner wall of the fairing barrel according to claim 1, characterized in that: The lifting frame (6) has a telescopic groove (63) inside, and a connecting spring (64) is fixed between the inner side wall of the telescopic groove (63) and the telescopic rod (61).

5. The device for detecting the inner wall of the fairing barrel according to claim 1, characterized in that: The line drawing detection component includes an extension slot (73), a column (7), a detection pen (71), and a drawing board (72). The extension slot (73) is opened on the upper side wall of the telescopic slot (63) and is a long strip structure. The column (7) is fixed on the telescopic rod (61) and passes through the extension slot (73). The detection pen (71) is fixed on the upper end of the column (7). The drawing board (72) is fixed on the upper end of the lifting frame (6) and abuts against the end of the detection pen (71).

6. The device for detecting the inner wall of a fairing barrel according to claim 1, characterized in that: A side plate (21) is fixed at the upper end of the long base (2) and at the four corners of the lifting frame (6). A guide groove (22) is provided on the inner side of the side plate (21). A limit plate (65) is fixed at the four corners of the lifting frame (6) and at the four corners of the lifting frame (6) and at the four corners of the guide groove (22).

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