Tool for measuring aperture size of large and medium-sized ultra-deep hole

Abstract

The utility model relates to the technical field of measuring equipment, in particular to a tool for measuring the aperture size of a large and medium-sized ultra-deep hole. Comprising a fixing frame, a cylinder, a distance measuring sensor and winch equipment. A plurality of rotating seats are arranged at the bottom end of the barrel in an annular array mode, rotating limiting plates are rotationally connected to the rotating seats, a lifting plate is arranged below the barrel, rotating rods are rotationally connected between the lifting plate and the rotating limiting plates, and a driving mechanism used for driving the lifting plate to move downwards is installed on the barrel; the distance measuring sensor is mounted on the cylinder body; the winch equipment is installed on the fixing frame and used for driving the barrel to ascend and descend. According to the technical scheme, when the cylinder body is lowered into the deep hole, the multiple rotating limiting plates are driven to abut against the inner wall of the deep hole, so that the cylinder body can be arranged in the middle, shaking of the cylinder body is avoided, and the accuracy of detection data is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring equipment, in particular to a tool for measuring the aperture size of large and medium-sized ultra-deep holes. Background Art

[0002] Ultra-deep hole parts are widely used in aviation, aerospace, and other fields, and are also critical components in these systems. These parts have a large aspect ratio, making them difficult to inspect using conventional measuring tools. Custom measuring tools are also time-consuming and expensive to produce. Due to the deep holes being measured and the need to measure holes at varying depths, existing techniques typically use a winch to lower the measuring instrument into the deep hole. This can cause the measuring instrument to wobble during measurement, making it impossible to maintain centering, which can affect test results. Utility Model Content

[0003] The purpose of the utility model is to provide a tool for measuring the aperture size of large and medium-sized ultra-deep holes, which can achieve stable installation, reduce installation difficulty and be easy to operate.

[0004] The utility model is realized through the following technical solutions: The utility model aims to solve the problems existing in the background technology and propose a tool for measuring the aperture size of large and medium-sized ultra-deep holes.

[0005] The technical solution of the utility model is a tool for measuring the aperture size of large and medium-sized ultra-deep holes, comprising

[0006] The bottom end of the cylinder is provided with a plurality of rotating seats along a circular array, and the plurality of rotating seats are rotatably connected to a rotating limit plate. A lifting plate is provided below the cylinder, and a rotating rod is rotatably connected between the lifting plate and the plurality of rotating limit plates. A driving mechanism for driving the lifting plate to move downward is installed on the cylinder;

[0007] Distance measuring sensor, the distance measuring sensor is installed on the cylinder;

[0008] A fixed frame is provided with a winch device for driving the cylinder to rise and fall.

[0009] In order to better realize the present invention, further, the driving mechanism includes an electric telescopic rod, which is installed on the inner side of the cylinder, and the output shaft of the electric telescopic rod movably passes through the bottom end of the cylinder.

[0010] In order to better realize the present utility model, the driving mechanism further includes an inflation cylinder, a movable rod, an air intake hose and an air pump. The inflation cylinder is arranged on the inner side of the cylinder body. The upper end of the movable rod is slidably arranged on the inner side of the inflation cylinder and is connected to a sealing piston. The movable rod movably passes through the bottom end of the cylinder body. One end of the air intake hose is connected to the inflation cylinder, and the other end is connected to the output end of the air pump. The air intake hose is connected to an exhaust pipe, and a valve is installed on the exhaust pipe.

[0011] In order to better realize the present utility model, further, the winch equipment includes a servo motor, a transmission shaft, two winding drums and two lifting ropes. The transmission shaft is rotatably mounted on the upper end of the fixed frame, the servo motor is mounted on the fixed frame and its output shaft is connected to the transmission shaft, the two winding drums are mounted on the transmission shaft, the two lifting ropes are fixedly wound around the winding drums on both sides, the lower ends of the two lifting ropes are connected to a first ring, and the upper end of the cylinder is symmetrically provided with two through holes, and the circumferential sides of the two first rings pass through the through holes on both sides respectively.

[0012] In order to better realize the present invention, further, a second ring is provided below each of the two winding drums, a connecting rod is connected between the second ring and the fixing frame, and the two lifting ropes are movable through the second rings on both sides respectively.

[0013] In order to better realize the present invention, further, a scale bar is provided on the sling along its length direction.

[0014] In order to better implement the present invention, a pressure sensor is further installed on the upper end surface of the lifting plate.

[0015] In order to better realize the present invention, further, a groove is provided on the cylinder, and the distance measuring sensor is installed on the inner side of the groove.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0017] The utility model provides a tool for measuring the aperture size of large and medium-sized ultra-deep holes. When the cylinder is lowered into the deep hole, multiple rotating limit plates are driven to press against the inner wall of the deep hole, so that the cylinder can be set in the center, avoiding shaking of the cylinder and improving the accuracy of the detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2 It is a structural schematic diagram of the cylinder and multiple rotation limit plates of the utility model.

[0021] Figure 3 Schematic diagram of the structure of the driving mechanism in Example 1.

[0022] Figure 4 This is a schematic diagram of the structure of the driving mechanism in Example 2.

[0023] Among them, 1 is a fixed frame, 2 is a cylinder, 201 is a groove, 202 is a perforation, 3 is a rotating limit plate, 4 is a distance sensor, 5 is a lifting plate, 6 is a pressure sensor, 7 is a rotating rod, 8 is a rotating seat, 9 is an electric telescopic rod, 10 is a servo motor, 11 is a transmission shaft, 12 is a reel, 13 is a lifting rope, 14 is a first ring, 15 is a connecting rod, 16 is a second ring, 17 is an inflator, 18 is a movable rod, and 19 is an air intake hose. DETAILED DESCRIPTION

[0024] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0027] Example 1:

[0028] The main structure of this embodiment is as follows: Figure 1-Figure 3As shown, it includes a fixing frame 1, a cylinder 2, a distance sensor 4 and a winch device.

[0029] A groove 201 is provided on the cylinder 2, and the ranging sensor 4 is installed on the inner side of the groove 201; a plurality of rotating seats 8 are provided along the annular array at the bottom end of the cylinder 2, and a rotating limit plate 3 is rotatably connected to each of the plurality of rotating seats 8. A lifting plate 5 is provided below the cylinder 2, and a rotating rod 7 is rotatably connected between the lifting plate 5 and the plurality of rotating limit plates 3. A driving mechanism for driving the lifting plate 5 to move downward is installed on the cylinder 2, and the driving mechanism includes an electric telescopic rod 9, which is installed on the inner side of the cylinder 2, and the output shaft of the electric telescopic rod 9 movably passes through the bottom end of the cylinder 2.

[0030] A pressure sensor 6 is installed on the upper end surface of the lifting plate 5. When the ends of multiple rotating limit plates 3 are pressed against the inner wall of the deep hole, the pressure value detected by the pressure sensor 6 changes and the signal is fed back to the controller, and the external controller drives the mechanism to stop driving.

[0031] The hoisting device is installed on the fixed frame 1 to drive the cylinder 2 to rise and fall. The hoisting device includes a servo motor 10, a transmission shaft 11, two winding discs 12 and two hanging ropes 13. The transmission shaft 11 is rotatably mounted on the upper end of the fixed frame 1. The servo motor 10 is mounted on the fixed frame 1 and its output shaft is connected to the transmission shaft 11. The two winding discs 12 are both mounted on the transmission shaft 11. The two hanging ropes 13 are fixedly wound around the winding discs 12 on both sides, and a scale is set on the hanging rope 13 along its length. The lower ends of the two lifting ropes 13 are connected to the first ring 14, and the upper end of the cylinder 2 is symmetrically provided with two through-holes 202, and the circumferential sides of the two first rings 14 pass through the through-holes 202 on both sides respectively; a second ring 16 is provided under the two winding disks 12, and a connecting rod 15 is connected between the second ring 16 and the fixed frame 1, and the two lifting ropes 13 are movable through the second rings 16 on both sides respectively. The setting of the second ring 16 can prevent the vertical part of the lifting rope 13 from shaking during the winding process.

[0032] In this embodiment, during the measurement process, the cylinder 2 is placed into the deep hole by the set winch equipment, and the lowering depth of the cylinder 2 can be determined by observing the scale bar on the lifting rope 13. When the cylinder 2 is lowered to the measuring position, the lifting plate 5 is driven downward by the set driving mechanism, and the movement of the lifting plate 5 drives the multiple rotating limit plates 3 to flip synchronously, so that the ends of the multiple rotating limit plates 3 are all pressed against the inner wall of the deep hole, so that the cylinder 2 can be set in the center and the cylinder 2 is prevented from shaking, so as to improve the accuracy of the detection data. The ranging sensor 4 can measure the distance between its detection end and the inner wall of the deep hole, and the distance between the detection end and the center point of the cylinder 2 is known, so the radius of the deep hole at the corresponding height position can be calculated.

[0033] Example 2:

[0034] like Figure 1 、 Figure 2 as well as Figure 4 As shown, the present embodiment proposes a large and medium-sized ultra-deep hole diameter measurement tool, which includes a fixing frame 1, a cylinder 2, a distance sensor 4 and a winch device.

[0035] A groove 201 is provided on the cylinder 2, and the distance sensor 4 is installed on the inner side of the groove 201; a plurality of rotating seats 8 are provided along the annular array at the bottom end of the cylinder 2, and a plurality of rotating seats 8 are rotatably connected to the rotating limit plates 3, a lifting plate 5 is provided below the cylinder 2, and a rotating rod 7 is rotatably connected between the lifting plate 5 and the plurality of rotating limit plates 3, and a driving mechanism for driving the lifting plate 5 to move downward is installed on the cylinder 2, and the driving mechanism includes an inflatable cylinder 17, a movable rod 18, an air intake hose 19 and an air pump, the inflatable cylinder 17 is provided on the inner side of the cylinder 2, and the upper end of the movable rod 18 is slidably provided on the inner side of the inflatable cylinder 17 and is connected to a sealing piston, and the movable rod 18 The movable part passes through the bottom end of the cylinder 2, one end of the air intake hose 19 is connected to the inflation cylinder 17, and the other end is connected to the output end of the air pump. The air intake hose 19 is connected to an exhaust pipe, and a valve is installed on the exhaust pipe. The difference from the first embodiment is that the inflation cylinder 17 and the movable rod 18 are placed on the inner side of the cylinder 2, which has the advantage of occupying a small space. When the air pump is started, the gas is transported to the inner side of the inflation cylinder 17 through the air intake hose 19. The gas pushes the sealing piston to move, which drives the movable rod 18 to move, and the movable rod 18 pushes the lifting plate 5 downward; open the valve, and the internal pressure of the inflation cylinder 17 is reduced at this time to release the tight state between the rotating limit plate 3 and the inner wall of the deep hole.

[0036] A pressure sensor 6 is installed on the upper end surface of the lifting plate 5. When the ends of multiple rotating limit plates 3 are pressed against the inner wall of the deep hole, the pressure value detected by the pressure sensor 6 changes and the signal is fed back to the controller, and the external controller drives the mechanism to stop driving.

[0037] The hoisting device is installed on the fixed frame 1 to drive the cylinder 2 to rise and fall. The hoisting device includes a servo motor 10, a transmission shaft 11, two winding discs 12 and two hanging ropes 13. The transmission shaft 11 is rotatably mounted on the upper end of the fixed frame 1. The servo motor 10 is mounted on the fixed frame 1 and its output shaft is connected to the transmission shaft 11. The two winding discs 12 are both mounted on the transmission shaft 11. The two hanging ropes 13 are fixedly wound around the winding discs 12 on both sides, and a scale is set on the hanging rope 13 along its length. The lower ends of the two lifting ropes 13 are connected to the first ring 14, and the upper end of the cylinder 2 is symmetrically provided with two through-holes 202, and the circumferential sides of the two first rings 14 pass through the through-holes 202 on both sides respectively; a second ring 16 is provided under the two winding disks 12, and a connecting rod 15 is connected between the second ring 16 and the fixed frame 1, and the two lifting ropes 13 are movable through the second rings 16 on both sides respectively. The setting of the second ring 16 can prevent the vertical part of the lifting rope 13 from shaking during the winding process.

[0038] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A tool for measuring the diameter of large and medium-sized ultra-deep holes, characterized in that: include A cylinder (2), a plurality of rotating seats (8) are arranged along a ring array at the bottom end of the cylinder (2), a rotating limit plate (3) is rotatably connected to each of the plurality of rotating seats (8), a lifting plate (5) is arranged below the cylinder (2), a rotating rod (7) is rotatably connected between the lifting plate (5) and the plurality of rotating limit plates (3), and a driving mechanism for driving the lifting plate (5) to move downward is installed on the cylinder (2); A distance measuring sensor (4), the distance measuring sensor (4) is mounted on the cylinder (2); A fixed frame (1) is provided with a winch device for driving the cylinder (2) to rise and fall.

2. A tool for measuring the aperture size of large and medium-sized ultra-deep holes according to claim 1, characterized in that: The driving mechanism comprises an electric telescopic rod (9), which is mounted on the inner side of the cylinder (2), and an output shaft of the electric telescopic rod (9) movably penetrates the bottom end of the cylinder (2).

3. The tool for measuring the aperture size of large and medium-sized ultra-deep holes according to claim 1, characterized in that: The driving mechanism includes an air cylinder (17), a movable rod (18), an air intake hose (19) and an air pump. The air cylinder (17) is arranged on the inner side of the cylinder (2). The upper end of the movable rod (18) is slidably arranged on the inner side of the air cylinder (17) and is connected to a sealing piston. The movable rod (18) is movable and passes through the bottom end of the cylinder (2). One end of the air intake hose (19) is connected to the air cylinder (17), and the other end is connected to the output end of the air pump. The air intake hose (19) is connected to an exhaust pipe, and a valve is installed on the exhaust pipe.

4. The tool for measuring the aperture size of large and medium-sized ultra-deep holes according to claim 1, characterized in that: The hoisting device comprises a servo motor (10), a transmission shaft (11), two winding drums (12) and two suspension ropes (13), wherein the transmission shaft (11) is rotatably mounted on the upper end of a fixed frame (1), the servo motor (10) is mounted on the fixed frame (1) and its output shaft is connected to the transmission shaft (11), the two winding drums (12) are both mounted on the transmission shaft (11), the two suspension ropes (13) are respectively fixedly wound around the winding drums (12) on both sides, the lower ends of the two suspension ropes (13) are both connected to a first circular ring (14), the upper end of the cylinder (2) is symmetrically provided with two through holes (202), and the circumferential sides of the two first circular rings (14) respectively pass through the through holes (202) on both sides.

5. The tool for measuring the aperture size of large and medium-sized ultra-deep holes according to claim 4, characterized in that: A second ring (16) is provided below each of the two winding reels (12), a connecting rod (15) is connected between the second ring (16) and the fixing frame (1), and the two suspension ropes (13) are movable through the second rings (16) on both sides.

6. A tool for measuring the diameter of large and medium-sized ultra-deep holes according to claim 4, characterized in that: The sling (13) is provided with a scale bar along its length direction.

7. The tool for measuring the aperture size of large and medium-sized ultra-deep holes according to claim 1, characterized in that: A pressure sensor (6) is mounted on the upper end surface of the lifting plate (5).

8. The tool for measuring the diameter of large and medium-sized ultra-deep holes according to claim 1, characterized in that: A groove (201) is provided on the cylinder (2), and the distance measuring sensor (4) is installed on the inner side of the groove (201).

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