A composite pipe ceramic lining detection device

Abstract

The present application relates to the technical fields of composite pipe ceramic lining measurement, and discloses a composite pipe ceramic lining detection device, which comprises a lower support, an upper support, a leveling system, a detection support and a rotary detection system.The upper support is inserted into the lower support and is adjusted along the vertical direction of the lower support.The leveling system is installed on one side of the upper support and is used for leveling with the end of the composite pipe.The detection support is slidingly installed on the top of the upper support and is adjusted along the horizontal direction of the upper support.The rotary detection system is installed on one side of the detection support through a two-axis adjustment system.The present application can complete the plane calibration with the end face of the pipe by means of the leveling system, and automatically position the axis of the composite pipe by cooperating with the two-axis adjustment system.The measurement accuracy is greatly improved.The vertical and horizontal laser displacement measurement sensors are arranged at 90 degrees, and the rotary motor is driven to scan 360 degrees, so that the inner diameter measurement accuracy is much higher than that of the tape measurement, and the operation is simple and convenient.

Description

Technical Field

[0001] This invention relates to the field of composite pipe ceramic lining measurement technology, specifically to a composite pipe ceramic lining detection device. Background Technology

[0002] Ceramic-lined composite pipes, with their excellent properties such as wear resistance, corrosion resistance, high temperature resistance, and high strength, are widely used in fluid transportation fields such as mining, power, chemical, and metallurgy. The forming accuracy, roundness, and inner diameter dimensional accuracy of the ceramic lining on the inner wall of the pipe directly determine the pipeline's transportation stability, service life, and installation adaptability, and are core indicators for product quality inspection before leaving the factory. Therefore, accurately inspecting the inner diameter and inner wall roundness of ceramic-lined composite pipes is a crucial process for controlling product quality and preventing pipeline malfunctions.

[0003] Currently, ceramic-lined composite pipes generally have large diameters, far exceeding the measurement range of conventional precision testing instruments such as digital calipers and dial indicators, making it impossible to measure their inner diameter using conventional precision equipment. At present, the industry mostly uses manual measurement with a measuring tape for measuring the inner diameter of large-diameter ceramic-lined composite pipes. This method has several inherent drawbacks. First, manual measurement relies on visual readings and manual alignment by the operator, resulting in significant human error and extremely low measurement accuracy, failing to meet the high-precision quality requirements for factory inspection of ceramic-lined composite pipes. Second, manual inspection is cumbersome and inefficient, unsuitable for the testing needs of production lines handling batches of pipes, severely restricting product testing efficiency and production progress. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a composite pipe ceramic lining detection device, mainly to solve the problem that existing ceramic-lined composite pipes generally have large diameters, making it inconvenient to accurately measure their dimensions.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A composite pipe ceramic lining testing device, comprising: The lower support and the upper support are inserted into the lower support and adjusted along the vertical direction of the lower support. The leveling system is installed on one side of the upper bracket and is used to level the end of the composite pipe. The testing bracket is slidably mounted on top of the upper bracket and can be adjusted horizontally along the upper bracket. The rotation detection system is installed on one side of the detection bracket via a two-axis adjustment system. The rotation detection system includes a vertical laser displacement range sensor and a horizontal laser displacement range sensor, which are distributed at 90°.

[0006] As a further embodiment of the present invention, the rotation detection system further includes: A connecting bracket is provided, and a rotating shaft is rotatably mounted inside the connecting bracket via a bearing. A rotating mounting plate is fixedly connected to the end of the rotating shaft. Both the vertical laser displacement ranging sensor and the horizontal laser displacement ranging sensor are mounted on one side of the rotating mounting plate. A rotary motor is fixedly connected inside a connecting bracket, and the end of the rotary motor is fixed to the end of a rotating shaft via a coupling. A rotation angle detection mechanism is installed inside the connecting bracket and is used to detect the rotation angle of the rotating mounting plate.

[0007] As a further embodiment of the present invention, the rotation angle detection mechanism includes a sensing frame and a slotted photoelectric switch that cooperate with each other. The sensing frame is fixedly connected to the outer circumference of the rotating shaft, and the slotted photoelectric switch is fixedly connected to the inside of the connecting bracket.

[0008] As a further embodiment of the present invention, the two-axis adjustment system includes a vertical ball screw linear module and a horizontal ball screw linear module. The vertical ball screw linear module is installed on the side of the detection bracket, the horizontal ball screw linear module is fixedly connected to one side of the vertical ball screw linear module slide, and the rotation detection system is installed on one side of the horizontal ball screw linear module slide.

[0009] As a further embodiment of the present invention, the top of the upper bracket is fixedly connected to two symmetrically distributed transverse guide rails, and the two transverse guide rails are slidably connected to the detection bracket via a slide table. A transverse electric push rod is provided between one end of the upper bracket and the detection bracket.

[0010] As a further embodiment of the present invention, a lifting electric push rod is provided between the lower support and the upper support, and the lifting electric push rod is used to drive the upper support to adjust vertically along the lower support.

[0011] As a further embodiment of the present invention, the leveling system includes: At least two sets of leveling frames are provided, each set of leveling frames is rotatably mounted on the side of the upper support via two damping shafts, and the two sets of leveling frames are symmetrically distributed. At least two sets of indexing pins are provided. An internally threaded cylinder is fixedly connected to one side of the leveling frame. The indexing pins are threaded inside the internally threaded cylinder. Two sets of pin seats are fixedly connected to the side of the upper bracket. The two sets of pin seats correspond to the two sets of indexing pins respectively. Each set of pin seats consists of two pin seats, which are located at the vertical storage and horizontal unfolding positions of the leveling frame respectively.

[0012] As a further embodiment of the present invention, the bottom end of the lower bracket is fixedly connected to a base, and self-locking casters are installed at the four corners of the base.

[0013] As a further embodiment of the present invention, multiple sets of counterweights are detachably installed on the top of the base.

[0014] A detection method for a composite pipe ceramic lining detection device includes the following steps: S1: Use the leveling system to fit the end of the composite pipe to achieve initial leveling; S2: The detection bracket and rotation detection system slide horizontally on the top of the upper bracket to determine whether the ceramic-lined composite pipe is horizontal. S3: Then, conduct subsequent tests on the ceramic-lined composite pipe that is in a horizontal state; S4: At this time, the positions of the rotation detection system, namely the vertical laser displacement ranging sensor and the horizontal laser displacement ranging sensor, are adjusted through the two-axis adjustment system, and the rotation axis of the rotation detection system is made to coincide with the axis of the ceramic lining composite pipe to achieve position calibration and complete the adjustment to coincide with the axis of the composite pipe. S5: At this point, the vertical laser displacement rangefinder and the horizontal laser displacement rangefinder of the rotation detection system are rotated to complete the rapid measurement of the inner diameter of the ceramic-lined composite pipe.

[0015] Compared with the prior art, the present invention provides a composite pipe ceramic lining detection device, which has the following beneficial effects: The detection device of this invention not only boasts high detection efficiency, achieving rapid multi-station transfer and stable support through its self-locking universal wheels and counterweight design; it also achieves planar calibration with the pipe end face in seconds using a leveling system, and automatically positions the composite pipe axis with a two-axis adjustment system; its measurement accuracy is significantly improved, employing vertical and horizontal laser displacement distance sensors arranged at 90°, combined with a rotary motor driving 360° scanning, resulting in inner diameter measurement accuracy far exceeding that of a measuring tape; it also features high functional integration, using a horizontal electric push rod to drive the detection bracket to move along the horizontal guide rail, achieving automatic detection of multiple sections of a single pipe; it incorporates levelness judgment logic, comparing multiple sets of data to avoid misjudgments caused by pipe tilting, thus improving the detection pass rate; and it is highly convenient to operate, with the leveling frame vertically folded away, reducing the overall size of the device for easy storage and transportation; the lifting electric push rod adapts to the initial alignment of the axis for different pipe diameters, reducing the difficulty of manual adjustment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front three-dimensional structure of a composite pipe ceramic lining detection device proposed in this invention; Figure 2 This invention provides a composite pipe ceramic lining testing device. Figure 1 The main view; Figure 3This invention provides a composite pipe ceramic lining testing device. Figure 1 A schematic diagram of the rear three-dimensional structure; Figure 4 This invention provides a composite pipe ceramic lining testing device. Figure 3 A schematic diagram of the storage status of the leveling system; Figure 5 This invention provides a composite pipe ceramic lining testing device. Figure 4 A magnified structural diagram of part A; Figure 6 This is a schematic diagram of the biaxial adjustment system of a composite pipe ceramic lining detection device proposed in this invention; Figure 7 This is a schematic diagram of the rotating detection system of a composite pipe ceramic lining detection device proposed in this invention; Figure 8 This is a schematic diagram showing the position adjustment states of the vertical laser displacement ranging sensor and the horizontal laser displacement ranging sensor of the composite pipe ceramic lining detection device proposed in this invention. Figure 9 This is a schematic diagram of the detection system of a composite pipe ceramic lining detection device proposed in this invention.

[0017] In the diagram: 1. Lower support; 2. Upper support; 3. Leveling system; 4. Vertical ball screw linear module; 5. Horizontal ball screw linear module; 6. Rotation detection system; 7. Rotation mounting plate; 101. Base; 102. Counterweight; 103. Self-locking casters; 104. Lifting electric push rod; 201. Transverse guide rail; 202. Transverse electric push rod; 203. Detection bracket; 301. Damping shaft; 302. Leveling frame; 303. Internal threaded cylinder; 304. Indexing pin; 305. Pin seat; 501. Connecting bracket; 601. Rotary motor; 602. Slotted photoelectric switch; 603. Sensing frame; 604. Rotating shaft; 801. Vertical laser displacement ranging sensor; 802. Horizontal laser displacement ranging sensor. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0019] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0021] Please see Figures 1-9 As shown, a composite pipe ceramic lining testing device includes a lower support 1 and an upper support 2, a leveling system 3, a rotation testing system 6, and a two-axis adjustment system. It is used to quickly connect the detection device to the end of the composite pipe, and then the rotating detection system 6 probes into the interior of the composite pipe to detect the size and diameter of the ceramic lining of the composite pipe. Because the ceramic-lined composite pipe is large in size, far exceeding the measurement range of conventional testing instruments such as digital calipers, a measuring tape is usually used to measure the inner diameter of the ceramic-lined composite pipe. However, this testing method has limited accuracy. Therefore, an intelligent sensing system consisting of a rotary testing system 6 and a two-axis adjustment system is used to quickly and accurately measure the inner diameter of the ceramic lining of the composite pipe. The specific structure is as follows: A base 101 is welded to the bottom of the lower support 1. Self-locking casters 103 are installed at the four corners of the base 101. Multiple sets of counterweights 102 are detachably installed on the top of the base 101. The four sets of self-locking casters 103 facilitate the movement of the testing device on the site for testing the inner wall dimensions of multiple ceramic composite pipes. The multiple sets of counterweights 102 also help to keep the testing device balanced and ensure its center of gravity is stable.

[0022] The upper bracket 2 is inserted into the lower bracket 1. A lifting electric push rod 104 is provided between the lower bracket 1 and the upper bracket 2. The lifting electric push rod 104 is used to drive the upper bracket 2 to adjust vertically along the lower bracket 1, so that the rotation detection system 6 can approach the axis of the ceramic lining composite pipe, which is convenient for subsequent secondary adjustments.

[0023] The leveling system 3 is installed on one side of the upper bracket 2. The leveling system 3 includes: at least two sets of leveling frames 302 and at least two sets of indexing pins 304. Two symmetrically distributed leveling frames 302 are rotatably mounted on the side of the upper bracket 2 via two damping shafts 301 (optional model: DP053). Therefore, the unfolded leveling frame 302 fits into the end of the ceramic lining composite pipe, which is used to complete the initial position calibration of the detection device and to make the detection plane coincide with the end plane of the ceramic lining composite pipe. The leveling frame 302 has an internally threaded cylinder 303 welded to one side, and the indexing pin 304 is threaded into the internally threaded cylinder 303. The upper bracket 2 has two sets of pin seats 305 welded to its side. The two sets of pin seats 305 correspond to the two sets of indexing pins 304 respectively. Each set of pin seats 305 consists of two pins, which are located in the vertical storage and horizontal unfolding positions of the leveling frame 302 respectively. Therefore, the vertical and horizontal states of the leveling frame 302 can be freely switched and fixed after switching by the insertion of the indexing pin 304 and the pin seat 305.

[0024] The horizontal unfolded state of the leveling frame 302 is used to complete the leveling of the end face of the testing device and the ceramic-lined composite pipe. The vertical storage state of the leveling frame 302 is used to store the testing device, reducing space occupation. This not only facilitates the relocation of the testing device on site, but also makes it easier to store and preserve it later.

[0025] Then, during the detection process, specifically, the rotation detection system 6 includes a vertical laser displacement ranging sensor 801 and a horizontal laser displacement ranging sensor 802 that cooperate with each other, as well as a connecting bracket 501. The laser displacement ranging sensor can be of model PDL-030-485. A rotating shaft 604 is rotatably mounted inside the connecting bracket 501 via bearings. A rotating mounting plate 7 is fixed to the end of the rotating shaft 604 via bolts. The vertical laser displacement ranging sensor 801 and the horizontal laser displacement ranging sensor 802 are both mounted on one side of the rotating mounting plate 7. The rotating motor 601 is fixed inside the connecting bracket 501 via bolts. The end of the rotating motor 601 is fixed to the end of the rotating shaft 604 via a coupling. Therefore, by driving the rotating motor 601, the output shaft of the rotating motor 601 rotates, which in turn drives the rotating mounting plate 7 and the vertical laser displacement ranging sensor 801 and the horizontal laser displacement ranging sensor 802 to rotate via the rotating shaft 604. Furthermore, the vertical laser displacement ranging sensor 801 and the horizontal laser displacement ranging sensor 802 need to be distributed at 90°.

[0026] However, during testing, it is necessary to ensure that the rotation axis 604 of the rotating mounting plate 7 is located at the center of the ceramic lining composite pipe, that is, the axis of the rotation axis 604 coincides with the axis of the ceramic lining composite pipe. Therefore, it is necessary to use a two-axis adjustment system to complete the position adjustment of the rotating mounting plate 7 and the rotating shaft 604; Specifically, the two-axis adjustment system includes a vertical ball screw linear module 4 and a horizontal ball screw linear module 5. The vertical ball screw linear module 4 is installed on the side of the detection bracket 203, and the horizontal ball screw linear module 5 is fixed to one side of the slide of the vertical ball screw linear module 4 by bolts. The rotation detection system 6 is installed on one side of the slide of the horizontal ball screw linear module 5. It should be noted that the ball screw linear module used in this application achieves precise linear motion through the coordinated operation of various components: the slide table is the moving component, the ball screw and guide rail constitute the transmission core, the motor and coupling provide power, and the aluminum alloy profile and support base ensure structural stability. Furthermore, by cooperating with magnetic switches, proximity switches, or photoelectric switches, the displacement of the slide table can be precisely controlled. Those skilled in the art can set it according to actual needs, which will not be elaborated here.

[0027] like Figure 8 As shown, the usage method of the two-axis adjustment system is as follows: The horizontal ball screw linear module 5 is used to drive the rotation detection system 6 to move horizontally. At this time, the vertical laser displacement ranging sensor 801 measures the distance to the top inner wall of the ceramic lining composite pipe. Then, as the vertical laser displacement ranging sensor 801 moves horizontally through the horizontal ball screw linear module 5, it always measures the distance to the top inner wall of the ceramic lining composite pipe. Since the top inner wall of the ceramic lining composite pipe is arc-shaped, there is a longest measurement distance in this process. This distance is the vertical direction of the axis of the ceramic lining composite pipe, and this position point is recorded. At this time, the horizontal ball screw linear module 5 drives the vertical laser displacement ranging sensor 801 to move to this position point. The vertical ball screw linear module 4 is used to drive the rotation detection system 6 to move vertically. At this time, the horizontal laser displacement ranging sensor 802 measures the distance to the inner wall of the ceramic lining composite pipe. Then, as the horizontal laser displacement ranging sensor 802 moves vertically through the vertical ball screw linear module 4, it always measures the distance to the inner wall of the ceramic lining composite pipe. Since the inner wall of the ceramic lining composite pipe is also arc-shaped, there is a longest measurement distance in this process. This distance is the horizontal direction of the axis of the ceramic lining composite pipe, and this position point is recorded. At this time, the vertical ball screw linear module 4 drives the horizontal laser displacement ranging sensor 802 to move to this position point. Therefore, the intersection of the two points represents the axial position (i.e., the center of the circle) of the ceramic-lined composite pipe. Figure 8 ); At this time, the distance a from the inner wall of the ceramic lining of the composite pipe is measured by the horizontal laser displacement ranging sensor 802 and the vertical laser displacement ranging sensor 801. The distance between the measurement emission point of the horizontal laser displacement ranging sensor 802 and the vertical laser displacement ranging sensor 801 and the axis of the rotating shaft 604 (which coincides with the axis of the ceramic-lined composite pipe) is b. Therefore, the radius R of the ceramic lining of the composite pipe is: R = a + b Then, the output shaft of the rotary motor 601 rotates to drive the vertical laser displacement ranging sensor 801 and the horizontal laser displacement ranging sensor 802 on the rotary mounting plate 7 to rotate 360°. At this time, the distance a needs to be continuously read, and the size of the distance a needs to be within the tolerance threshold range. If the distance a exceeds the threshold, the inner wall of the ceramic-lined composite pipe will be an irregular circle, which is unqualified and requires rework. If the distance 'a' does not exceed the threshold, then the inner wall dimensions of the ceramic-lined composite pipe are acceptable.

[0028] The rotation angle detection mechanism is installed inside the connecting bracket 501 to detect the rotation angle of the rotating mounting plate 7. The rotation angle detection mechanism includes a sensing frame 603 and a slotted photoelectric switch 602 (optional model: EE-SX671) that cooperate with each other. The sensing frame 603 is fixed to the outer circumference of the rotating shaft 604 by bolts, and the slotted photoelectric switch 602 is fixed to the inside of the connecting bracket 501 by bolts; thus, the precise control of the angle of one revolution of the rotating mounting plate 7 is achieved.

[0029] In addition, it is necessary to test the inner diameter of the ceramic-lined composite pipe at multiple locations. Therefore, two symmetrically distributed transverse guide rails 201 are fixed to the top of the upper bracket 2 by bolts. The two transverse guide rails 201 are slidably connected to the test bracket 203 through a slide table. A transverse electric push rod 202 is provided between one end of the upper bracket 2 and the test bracket 203. The electric actuator used in this application is a linear motion power actuator that converts electrical energy into mechanical energy. It can be connected to an external power source and control switch, and the actuator can be driven to perform linear reciprocating motion by controlling the forward and reverse rotation of the motor. It can be used in conjunction with limit switches or Hall sensors to achieve safety protection and position control of the actuator's extension and retraction stroke. Those skilled in the art can set it according to actual needs, which will not be elaborated here.

[0030] By driving the transverse electric push rod 202, the detection bracket 203 is moved to different positions, so that the rotary detection system 6 can measure the inner diameter at different detection positions.

[0031] However, when ceramic-lined composite pipes are to be tested, they are usually placed on a support on the site. If the ceramic-lined composite pipes are not placed horizontally, the subsequent inner diameter measurement of the rotating detection system 6 will have no reference value. Therefore, before performing dimensional inspection of the rotation inspection system 6, the horizontal electric push rod 202 can be used to complete the levelness inspection. Specific testing methods: First, the horizontal laser displacement ranging sensor 802 and the vertical laser displacement ranging sensor 801 of the rotation detection system 6 read the dimensions of the inner wall of the ceramic-lined composite pipe. These distances are h1 and k1, respectively, which are the initial detection points. Then, the horizontal electric push rod 202 is activated, causing it to extend and drive the horizontal laser displacement ranging sensor 802 and the vertical laser displacement ranging sensor 801 of the rotation detection system 6 to move inward. At this time, the horizontal laser displacement ranging sensor 802 and the vertical laser displacement ranging sensor 801 read the dimensions of the inner wall of the ceramic-lined composite pipe multiple times. These distances are h2, h3, h4.......... and k2, k3, k4........... respectively. Compare the values ​​of h1, h2, h3, h4.......... and k1, k2, k3, k4........... If the values ​​are within the tolerance range, then the ceramic-lined composite pipe is in a horizontal state; If the value is outside the tolerance range, the level of the ceramic-lined composite pipe needs to be adjusted before the inner diameter measurement is performed.

[0032] The testing process involves the following steps: Figure 9 As shown: S1: The four sets of self-locking casters 103 facilitate the movement of the detection device on the site, and the lifting electric push rod 104 completes the initial fuzzy alignment of the position of the rotating detection system 6. Then, the leveling frame 302 after the leveling system 3 is unfolded is used to fit and level the end of the composite pipe to achieve the initial adjustment. S2: The detection bracket 203 and the rotation detection system 6 slide horizontally on the top of the upper bracket 2. At this time, the horizontal laser displacement ranging sensor 802 and the vertical laser displacement ranging sensor 801 read the dimensions of the inner wall of the ceramic lining composite pipe and determine whether the ceramic lining composite pipe is horizontal. If it is horizontal, the ceramic lining composite pipe in the horizontal state will be subsequently detected. S3: At this time, the horizontal ball screw linear module 5 drives the rotary detection system 6 to move horizontally, so that the vertical laser displacement ranging sensor 801 moves to the longest measurement distance point; S4: Then, the vertical ball screw linear module 4 drives the rotary detection system 6 to move vertically, so that the horizontal laser displacement ranging sensor 802 moves to the point with the longest measurement distance. S5: At this point, move to the intersection of the two positions. This intersection is the axis position of the ceramic-lined composite pipe, and adjust it to coincide with the axis position of the composite pipe. S6: When measuring the inner diameter of the ceramic lining of the composite pipe, the radius of the ceramic lining of the composite pipe is measured by the horizontal laser displacement distance sensor 802 and the vertical laser displacement distance sensor 801. S7: Then, the vertical laser displacement ranging sensor 801 and the horizontal laser displacement ranging sensor 802 on the rotating mounting plate 7 are rotated 360° by the output shaft of the rotary motor 601. At this time, the continuous measurement of the radius of the ceramic lining of the composite pipe is completed, and it is determined whether the measured radius is within the tolerance threshold range. S8: If the measured radius does not exceed the threshold, the inner wall size of the ceramic-lined composite pipe is qualified. S9: After the rapid inspection of the inner diameter of this ceramic-lined composite pipe is completed and it passes the inspection, the inspection device only needs to be moved to the next ceramic-lined composite pipe to be inspected.

[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A testing device for ceramic lining of composite pipes, characterized in that, include: The lower bracket (1) and the upper bracket (2) are inserted into the lower bracket (1) and adjusted along the vertical direction of the lower bracket (1); Leveling system (3) is installed on one side of the upper bracket (2) for fitting and leveling the end of the composite pipe; The detection bracket (203) is slidably mounted on the top of the upper bracket (2) and is adjusted horizontally along the upper bracket (2); The rotation detection system (6) is installed on one side of the detection bracket (203) through a two-axis adjustment system. The rotation detection system (6) includes a vertical laser displacement ranging sensor (801) and a horizontal laser displacement ranging sensor (802). The vertical laser displacement ranging sensor (801) and the horizontal laser displacement ranging sensor (802) are distributed at 90°.

2. The composite pipe ceramic lining detection device according to claim 1, characterized in that, The rotation detection system (6) also includes: A connecting bracket (501) is provided, and a rotating shaft (604) is rotatably mounted inside the connecting bracket (501) via a bearing. A rotating mounting plate (7) is fixedly connected to the end of the rotating shaft (604). The vertical laser displacement ranging sensor (801) and the horizontal laser displacement ranging sensor (802) are both mounted on one side of the rotating mounting plate (7). A rotary motor (601) is fixedly connected inside a connecting bracket (501), and the end of the rotary motor (601) is fixed to the end of a rotating shaft (604) via a coupling. A rotation angle detection mechanism is installed inside the connecting bracket (501) to detect the rotation angle of the rotating mounting plate (7).

3. The composite pipe ceramic lining detection device according to claim 2, characterized in that, The rotation angle detection mechanism includes a sensing frame (603) and a slotted photoelectric switch (602) that cooperate with each other. The sensing frame (603) is fixedly connected to the outer circumference of the rotating shaft (604), and the slotted photoelectric switch (602) is fixedly connected to the inside of the connecting bracket (501).

4. The composite pipe ceramic lining detection device according to claim 1, characterized in that, The two-axis adjustment system includes a vertical ball screw linear module (4) and a horizontal ball screw linear module (5). The vertical ball screw linear module (4) is installed on the side of the detection bracket (203). The horizontal ball screw linear module (5) is fixedly connected to one side of the slide of the vertical ball screw linear module (4). The rotation detection system (6) is installed on one side of the slide of the horizontal ball screw linear module (5).

5. The composite pipe ceramic lining detection device according to claim 1, characterized in that, The top of the upper bracket (2) is fixedly connected to two symmetrically distributed transverse guide rails (201). The two transverse guide rails (201) are slidably connected to the detection bracket (203) via a slide table. A transverse electric push rod (202) is provided between one end of the upper bracket (2) and the detection bracket (203).

6. The composite pipe ceramic lining detection device according to claim 1, characterized in that, A lifting electric push rod (104) is provided between the lower support (1) and the upper support (2). The lifting electric push rod (104) is used to drive the upper support (2) to adjust vertically along the lower support (1).

7. The composite pipe ceramic lining detection device according to claim 1, characterized in that, The leveling system (3) includes: At least two sets of leveling frames (302) are mounted on the side of the upper bracket (2) via two damping shafts (301), and the two sets of leveling frames (302) are symmetrically distributed. At least two sets of indexing pins (304) are fixedly connected to one side of the leveling frame (302), and the indexing pins (304) are threaded inside the internal threaded cylinder (303). The upper bracket (2) is fixedly connected to two sets of pin seats (305), and the two sets of pin seats (305) correspond to the two sets of indexing pins (304) respectively. Each set of pin seats (305) consists of two pins, which are located in the vertical storage and horizontal unfolding positions of the leveling frame (302) respectively.

8. The composite pipe ceramic lining detection device according to claim 1, characterized in that, The bottom end of the lower bracket (1) is fixedly connected to a base (101), and self-locking casters (103) are installed at the four corners of the base (101).

9. The composite pipe ceramic lining detection device according to claim 8, characterized in that, Multiple sets of counterweights (102) can be detachably installed on the top of the base (101).

10. A detection method for a composite pipe ceramic lining detection device, applicable to the composite pipe ceramic lining detection device as described in claim 1, characterized in that, Includes the following steps: S1: Use the leveling system (3) to fit the end of the composite pipe to level it and complete the initial adjustment; S2: The detection bracket (203) and the rotation detection system (6) slide horizontally on the top of the upper bracket (2) to determine whether the ceramic lining composite pipe is in a horizontal state; S3: Then, conduct subsequent tests on the ceramic-lined composite pipe that is in a horizontal state; S4: At this time, the positions of the rotation detection system (6), namely the vertical laser displacement ranging sensor (801) and the horizontal laser displacement ranging sensor (802), are adjusted by the two-axis adjustment system, and the rotation axis of the rotation detection system (6) is made to coincide with the axis of the ceramic lining composite pipe, so as to achieve position calibration and complete the adjustment of the position to coincide with the axis of the composite pipe. S5: At this time, the vertical laser displacement ranging sensor (801) and the horizontal laser displacement ranging sensor (802) of the rotation detection system (6) are rotated to complete the rapid measurement of the inner diameter of the ceramic-lined composite pipe.

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