Pipeline stress detection device

Abstract

The utility model provides a pipeline stress detection device, which comprises a mounting bottom plate, a driving box arranged at the top end of the mounting bottom plate, a driving motor arranged inside the driving box, a transmission screw rod arranged at one end of the driving motor, a screw rod nut sleeved on the outer wall of the transmission screw rod, and a movable frame arranged on the outer wall of the screw rod nut, an exhaust pipe is installed at the end, away from the exhaust pipe, of the air pump; a fixing clamp is connected to the bottom end of the exhaust pipe; an air bin is formed in the fixing clamp; through openings are formed in the two ends of the air bin; the pipeline is clamped through pneumatic control, unnecessary contact between the pipeline and the clamp during positioning is avoided, damage to the pipeline caused by the clamp is reduced, meanwhile, pipelines with different lengths can be adjusted and positioned, and the applicability of the device is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pipeline stress detection device belongs to pipeline stress detection technical field. BACKGROUND

[0002] Metal pipeline is made of alloy or rustproof metal, generally applied to underground water or power transmission, and the influence mechanism of normal pressure and friction on product axial and ring residual stress in the cold drawing process of metal pipeline, pipeline residual stress has great influence on the dimensional accuracy of pipeline, so it needs to be detected.

[0003] The existing pipeline stress detection device is generally clamped and positioned by a mechanical clamp when in use, and then the stress of the pipeline is detected by a detection head, but when detecting pipelines of different sizes, friction between the pipeline and the clamp is prone to occur during clamping and conveying of the clamp, which causes the pipeline to easily deform and causes damage to the pipeline, and the positions of the clamps are not easy to adjust when detecting pipelines of different lengths, so it is inconvenient for users to use. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a pipeline stress detection device to solve the problems that the existing pipeline stress detection device is generally clamped and positioned by a mechanical clamp when in use, and then the stress of the pipeline is detected by a detection head, but when detecting pipelines of different sizes, friction between the pipeline and the clamp is prone to occur during clamping and conveying of the clamp, which causes the pipeline to easily deform and causes damage to the pipeline, and the positions of the clamps are not easy to adjust when detecting pipelines of different lengths.

[0005] In order to achieve the above purpose, the utility model is implemented by the following technical scheme: a pipeline stress detection device, comprising a mounting bottom plate, a drive box is installed at the top end of the mounting bottom plate, a drive motor is installed in the drive box, a transmission screw rod is installed at one end of the drive motor, a screw nut is sleeved on the outer wall of the transmission screw rod, a moving frame is installed on the outer wall of the screw nut, a gas pump is arranged at the top end of the moving frame, an air suction pipe is installed at one end of the gas pump, an air exhaust pipe is installed at the end of the gas pump away from the air suction pipe, a fixed clamp is connected to the bottom end of the air exhaust pipe, a gas chamber is formed in the fixed clamp, a through opening is formed at both ends of the gas chamber, a fixed sleeve is installed on one side of the fixed clamp, an installation block is fixed in the fixed sleeve, a reset spring is installed at one end of the installation block, and a positioning clamp plate is installed at one end of the reset spring.

[0006] Further, the top end of the drive box is provided with a positioning plate, and the inside of the positioning plate is provided with a directional pipe.

[0007] Further, the inside of the directional pipe is provided with a conveying wheel, the inside of the conveying wheel is inserted with a mounting shaft, and the inside of the directional pipe is placed with a to-be-detected pipeline.

[0008] Further, the end, away from the transmission screw rod, of the moving frame is inserted with a limiting rod, and one end of the moving frame is provided with a mounting plate.

[0009] Further, the middle part of the fixed clamp is provided with a positioning hole.

[0010] Further, the side top end of the drive box is provided with a detection box.

[0011] Further, the bottom end of the detection box is provided with a drive hydraulic cylinder, one end of the drive hydraulic cylinder is provided with a hydraulic cylinder drive shaft, and one end of the hydraulic cylinder drive shaft is provided with a detection head.

[0012] The utility model discloses the beneficial effects that: considering the pipeline stress detection device of existing pipeline stress detection device when using, generally through mechanical clamp will need to be detected pipeline clamping positioning, subsequently through the stress detection of pipeline of detection head, but when detecting the pipeline of different sizes, in the clamping and conveying process of clamp, the friction between the pipeline and the clamp is easy to make the pipeline deformation, cause the damage of pipeline, and when detecting the pipeline of different lengths, the position between the clamp is not easy to adjust.

[0013] When needing to detect the to-be-detected pipeline, first, the to-be-detected pipeline is inserted into the inside of the directional pipe, and passes through the positioning hole in the middle of the fixed clamp, at this time, the air pump can be opened, the air pump sends air to the exhaust pipe, the exhaust pipe inputs air to the inside of the air warehouse, so that the air enters the fixed sleeve through the through hole, then pushes the two sets of positioning clamping plates to be close to the positioning hole, so that the to-be-detected pipeline inserted in the positioning hole is clamped and fixed, the opening of the air pump can be controlled to control the clamping of the two sets of positioning clamping plates, so that the to-be-detected pipeline does not shake during detection, and the to-be-detected pipeline is deformed due to the clamping force of the positioning clamping plate being too large, and the use position of the fixed clamp can be adjusted by controlling the driving motor, so that the to-be-detected pipeline of different lengths and sizes can be positioned and detected. BRIEF DESCRIPTION OF DRAWINGS

[0014] Other features, objects and advantages of the utility model will become more apparent through reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 It is the whole schematic view of the pipeline stress detection device of the utility model;

[0016] Figure 2 It is the overhead schematic view of the pipeline stress detection device of the utility model;

[0017] Figure 3 It is the positioning plate schematic view of the pipeline stress detection device of the utility model;

[0018] Figure 4 It is the moving frame installation schematic view of the pipeline stress detection device of the utility model;

[0019] Figure 5 It is the fixed clamp internal schematic view of the pipeline stress detection device of the utility model;

[0020] Figure 6 It is the fixed sleeve internal schematic view of the pipeline stress detection device of the utility model.

[0021] In the drawing: 1, installation bottom plate; 2, drive box; 3, positioning plate; 4, pipeline to be detected; 5, directional pipe; 6, conveying wheel; 7, installation shaft; 8, drive motor; 9, transmission screw rod; 10, screw rod nut; 11, moving frame; 12, limiting rod; 13, installation plate; 14, air pump; 15, air suction pipe; 16, exhaust pipe; 17, fixed clamp; 18, air storehouse; 19, through mouth; 20, positioning hole; 21, fixed sleeve; 22, installation block; 23, reset spring; 24, positioning clamp plate; 25, drive hydraulic cylinder; 26, hydraulic cylinder drive shaft; 27, detection head; 28, detection box. Specific embodiments

[0022] In order to make the technical means, creation features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0023] Please refer to Figures 1-6The utility model provides a kind of technical scheme: a pipeline stress detection device, including installation base plate 1, the top of installation base plate 1 is equipped with drive box 2, drive motor 8 is installed in the inside of drive box 2, one end of drive motor 8 is equipped with transmission screw rod 9, the outer wall of transmission screw rod 9 is sleeved with screw nut 10, mobile frame 11 is installed on the outer wall of screw nut 10, the top of mobile frame 11 is provided with air pump 14, one end of air pump 14 is equipped with suction pipe 15, one end of air pump 14 away from suction pipe 15 is equipped with exhaust pipe 16, the bottom of exhaust pipe 16 is connected with fixed clamp 17, fixed clamp 17 is equipped with air storehouse 18 in the inside, the both ends of air storehouse 18 are equipped with through hole 19, one side of fixed clamp 17 is equipped with fixed sleeve 21, fixed sleeve 21 is fixedly provided with mounting block 22 in the inside, one end of mounting block 22 is equipped with return spring 23, one end of return spring 23 is equipped with positioning clamping plate 24.

[0024] When the pipeline to be detected 4 needs to be detected, first, the pipeline to be detected 4 is inserted into the inside of the directional pipe 5, and passes through the positioning hole 20 in the middle of the fixed clamp 17. At this time, the air pump 14 is opened, the suction pipe 15 sends air to the exhaust pipe 16, the air is input into the air storehouse 18 through the exhaust pipe 16, so that the air enters the fixed sleeve 21 through the through hole 19, and then pushes the two positioning clamping plates 24 to be close to the positioning hole 20, so that the pipeline to be detected 4 inserted in the positioning hole 20 is clamped and fixed. The opening of the air pump 14 can be controlled to control the clamping of the two positioning clamping plates 24, so that the pipeline to be detected 4 does not shake during detection. Since the positioning clamping plate 24 is driven by the air pump 14, one end of the positioning clamping plate 24 is also connected with the return spring 23, so that the pipeline to be detected 4 does not deform due to the excessive clamping force of the positioning clamping plate 24. The use position of the fixed clamp 17 can be adjusted by controlling the drive motor 8, so that the pipeline to be detected 4 of different lengths can be positioned and detected.

[0025] The top of the drive box 2 is provided with a positioning plate 3, and the inside of the positioning plate 3 is provided with a directional pipe 5.

[0026] The inside of the positioning plate 3 is provided with the directional pipe 5, and the directional pipe 5 is used for limiting and conveying the pipeline to be detected 4.

[0027] The inside of the directional pipe 5 is provided with a conveying wheel 6, the inside of the conveying wheel 6 is inserted with a mounting shaft 7, and the inside of the directional pipe 5 is placed with the pipeline to be detected 4.

[0028] The conveying wheel 6 is installed in the inside of the directional pipe 5 through the mounting shaft 7, and the pipeline to be detected 4 is conveyed through the conveying wheel 6 in the directional pipe 5, so that the pipeline to be detected 4 does not rub with other objects during conveying, and the pipeline to be detected 4 is not scratched.

[0029] The end of the moving frame 11 away from the transmission screw rod 9 is inserted with a limiting rod 12, and one end of the moving frame 11 is installed with a mounting plate 13.

[0030] The movement of the moving frame 11 is limited by the limiting rod 12 at one end of the moving frame 11, which increases the movement stability of the moving frame 11, and the fixed clamp 17 is fixedly installed through the mounting plate 13.

[0031] The middle part of the fixed clamp 17 is provided with a positioning hole 20.

[0032] The positioning hole 20 is arranged in the fixed clamp 17, and the to-be-detected pipeline 4 is inserted into the positioning hole 20 for positioning.

[0033] The top end of one side of the driving box 2 is installed with a detection box 28.

[0034] The pipeline stress of the to-be-detected pipeline 4 is detected through the detection box 28.

[0035] The bottom end of the detection box 28 is installed with a driving hydraulic cylinder 25, one end of the driving hydraulic cylinder 25 is installed with a hydraulic cylinder driving shaft 26, and one end of the hydraulic cylinder driving shaft 26 is installed with a detection head 27.

[0036] During the detection process, the driving hydraulic cylinder 25 is opened, the hydraulic cylinder driving shaft 26 drives the detection head 27 to move towards the to-be-detected pipeline 4, and the detection head 27 is used for detection work.

[0037] Working principle: When using this pipe stress testing device, to perform testing on the pipe 4 to be tested, first insert the pipe 4 into the directional pipe 5, passing through the positioning hole 20 in the middle of the fixing clamp 17. At this time, the air pump 14 can be turned on, so that the air extraction pipe 15 supplies air to the exhaust pipe 16, and the exhaust pipe 16 inputs air into the air chamber 18, so that the air enters the fixing sleeve 21 through the port 19. Then, it will push the two sets of positioning clamps 24 closer to the positioning hole 20, thereby clamping and fixing the pipe 4 to be tested inserted into the positioning hole 20. The two sets of positioning clamps 24 can be clamped and fixed by controlling the air pump 14 to turn on. The clamping is controlled to prevent the pipe 4 to be inspected from shaking during the inspection process. At the same time, since the positioning clamp 24 is driven by the air pump 14, and one end of the positioning clamp 24 is also connected to the return spring 23, it can prevent the pipe 4 to be inspected from deforming due to excessive clamping force of the positioning clamp 24. At the same time, the position of the fixing fixture 17 can also be adjusted by controlling the drive motor 8, which is convenient for positioning and inspection of pipes 4 of different lengths. After the pipe 4 to be inspected is fixed, the drive hydraulic cylinder 25 is opened, so that the hydraulic cylinder drive shaft 26 drives the inspection head 27 to move towards the pipe 4 to be inspected, and the inspection operation is performed through the inspection head 27.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model 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 basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] 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 pipeline stress detection device, comprising a mounting base plate (1), characterized in that: A drive box (2) is installed at the top of the mounting base plate (1). A drive motor (8) is installed inside the drive box (2). A transmission screw (9) is installed at one end of the drive motor (8). A screw nut (10) is sleeved on the outer wall of the transmission screw (9). A movable frame (11) is installed on the outer wall of the screw nut (10). An air pump (14) is provided at the top of the mobile frame (11). An air extraction pipe (15) is installed at one end of the air pump (14). An exhaust pipe (16) is installed at the end of the air pump (14) away from the air extraction pipe (15). A fixing clamp (17) is connected to the bottom end of the exhaust pipe (16). An air chamber (18) is opened inside the fixing clamp (17). A through-hole (19) is opened at both ends of the air chamber (18). A fixing sleeve (21) is installed on one side of the fixing clamp (17). An installation block (22) is fixed inside the fixing sleeve (21). A return spring (23) is installed at one end of the installation block (22). A positioning clamp (24) is installed at one end of the return spring (23).

2. The pipeline stress detection device according to claim 1, characterized in that: A positioning plate (3) is installed at the top of the drive box (2), and a directional tube (5) is installed inside the positioning plate (3).

3. The pipeline stress detection device according to claim 2, characterized in that: The directional tube (5) is equipped with a conveyor wheel (6), and the conveyor wheel (6) is connected to an installation shaft (7). The directional tube (5) contains a pipe (4) to be tested.

4. The pipeline stress detection device according to claim 1, characterized in that: A limit rod (12) is inserted into one end of the movable frame (11) away from the transmission screw (9), and a mounting plate (13) is installed on one end of the movable frame (11).

5. A pipeline stress detection device according to claim 1, characterized in that: The fixing clamp (17) has a positioning hole (20) in the middle.

6. The pipeline stress detection device according to claim 1, characterized in that: A detection box (28) is installed on the top side of the drive box (2).

7. A pipeline stress detection device according to claim 6, characterized in that: The bottom of the test box (28) is equipped with a driving hydraulic cylinder (25), one end of the driving hydraulic cylinder (25) is equipped with a hydraulic cylinder drive shaft (26), and one end of the hydraulic cylinder drive shaft (26) is equipped with a test head (27).

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