Steel pipe wall thickness detection device

Abstract

The utility model relates to a steel pipe wall thickness detection device, which comprises two support frames, two oppositely arranged driven rollers are rotatably connected between the two support frames, a support rod is fixedly connected between the tops of the two support frames, a steel pipe is placed between the two driven rollers, and a driving mechanism for driving the steel pipe to rotate is arranged on the support rod. Wherein one supporting frame is provided with a controller and a sliding plate, the sliding plate is provided with an upper laser distance sensor and a lower laser distance sensor which are arranged up and down, the upper laser distance sensor and the lower laser distance sensor are located outside and inside the steel pipe respectively, and the upper laser distance sensor and the lower laser distance sensor are both electrically connected with the controller. A display screen is arranged on the controller; according to the utility model, the wall thickness of the steel pipe does not need to be detected manually, the measurement time is greatly shortened, the detection result error is reduced, and the detection workload of workers is reduced.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe testing technology, specifically to a steel pipe wall thickness testing device. Background Technology

[0002] After steel pipe production is completed, the uniformity of the pipe wall thickness is usually measured to ensure that it meets specified standards, satisfying customer requirements and relevant industry standards. Measuring wall thickness uniformity helps inspect the quality of the steel pipe and allows for the timely detection of any problems or defects that may occur during the production process.

[0003] The current method for inspecting the uniformity of steel pipe wall thickness involves manually measuring the entire circumference of the pipe with a handheld micrometer to determine the maximum and minimum wall thicknesses. The difference between the maximum and minimum wall thicknesses is then used to judge whether the pipe meets the requirements. However, this manual inspection method has drawbacks such as long measurement time, large error in the test results, and increased workload for staff. Utility Model Content

[0004] The purpose of this invention is to design a steel pipe wall thickness detection device that can solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A steel pipe wall thickness detection device includes two support frames, with two oppositely arranged driven rollers rotatably connected between the two support frames. A support rod is fixedly connected between the tops of the two support frames, and a steel pipe is placed between the two driven rollers. A drive mechanism for rotating the steel pipe is provided on the support rod. One of the support frames is equipped with a controller and a sliding plate. An upper laser distance sensor and a lower laser distance sensor are arranged vertically on the sliding plate. The upper laser distance sensor and the lower laser distance sensor are located outside and inside the steel pipe, respectively. Both the upper laser distance sensor and the lower laser distance sensor are electrically connected to the controller, which is equipped with a display screen.

[0007] Furthermore, the driving mechanism includes a support plate disposed below the support rod, two bases are fixedly connected to the bottom of the support plate, two opposing active rollers are rotatably connected between the two bases, and a motor is installed at the bottom of the support plate, the motor being drivenly connected to the active rollers.

[0008] Furthermore, one end of the drive roller passes through one of the bases and is fixedly connected to a driven gear, and the output end of the motor is fixedly connected to a drive gear that meshes with the driven gear.

[0009] Furthermore, a cylinder is mounted on the top of the support rod, and the output end of the cylinder passes through the support rod and is connected to the top of the support plate.

[0010] Furthermore, a receiving plate is fixedly connected to the output end of the cylinder, and limit rods are fixedly connected to the top four corners of the support plate. The receiving plate is provided with limit holes for the limit rods to pass through. A spring is sleeved on the limit rod, one end of which is connected to the top of the support plate and the other end is connected to the bottom of the receiving plate. A limit block is fixedly connected to the end of the limit rod away from the support plate.

[0011] Furthermore, one end of the skateboard is fixedly connected to a vertical plate, and the other end is slidably connected to the support frame. An upper horizontal plate and a lower horizontal plate are fixedly connected to the vertical plate. The upper laser distance sensor is installed at the bottom of the upper horizontal plate, and the lower laser distance sensor is installed at the top of the lower horizontal plate.

[0012] Furthermore, the support frame is provided with a support hole that slides with the slide plate, and the side of the support frame is provided with a threaded hole that communicates with the support hole, and a clamping bolt is threaded into the threaded hole.

[0013] Furthermore, two sliding rods symmetrically arranged with respect to the slide plate are fixedly connected to the vertical plate, and the support frame is provided with sliding holes that slide with the sliding rods.

[0014] The beneficial effects of this utility model are as follows:

[0015] The drive mechanism rotates the steel pipe placed between two driven rollers. The upper laser distance sensor measures the distance between itself and the outer wall of the steel pipe and transmits the measurement data A to the controller. The lower laser distance sensor measures the distance between itself and the inner wall of the steel pipe and transmits the measurement data B to the controller. The controller then subtracts the measurement data A and measurement data B from the distance between the upper and lower laser distance sensors to obtain the wall thickness of the steel pipe. This eliminates the need for manual inspection of the steel pipe wall thickness, greatly reducing measurement time, minimizing error in the inspection results, and reducing the workload of the inspection staff. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of the structure for operation of this utility model;

[0018] Figure 2 for Figure 1 A sectional view;

[0019] Figure 3 This is a schematic diagram of the structure connecting the support plate and support frame in this utility model;

[0020] Figure 4 for Figure 3 An exploded view from another perspective;

[0021] Figure 5 This is a schematic diagram of the connection between the drive mechanism and the support rod in this utility model;

[0022] Figure 6 for Figure 5 An exploded view from another perspective.

[0023] The names of the components shown in the diagram are as follows:

[0024] 1. Support frame; 2. Driven roller; 3. Support rod; 4. Controller; 5. Slide plate; 6. Upper laser distance sensor; 7. Lower laser distance sensor; 8. Display screen; 9. Support plate; 10. Base; 11. Driven roller; 12. Motor; 13. Driven gear; 14. Driven gear; 15. Cylinder; 16. Receiving plate; 17. Limiting rod; 18. Limiting hole; 19. Spring; 20. Limiting block; 21. Vertical plate; 22. Supporting hole; 23. Threaded hole; 24. Clamping bolt; 25. Slide rod; 26. Slide hole; 27. Steel pipe. Detailed Implementation

[0025] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0026] like Figure 1-6 As shown, a steel pipe wall thickness detection device includes two support frames 1, two oppositely arranged driven rollers 2 are rotatably connected between the two support frames 1, a support rod 3 is fixedly connected between the tops of the two support frames 1, and a steel pipe 27 is placed between the two driven rollers 2. The steel pipe 27 is supported by the two driven rollers 2, and the rotation of the driven rollers 2 can reduce the friction generated with the steel pipe 27 during the rotation process, so as to avoid wear on the outer wall of the steel pipe 27.

[0027] The support rod 3 is equipped with a drive mechanism that drives the steel pipe 27 to rotate. The drive mechanism includes a support plate 9 located below the support rod 3. Two bases 10 are fixedly connected to the bottom of the support plate 9. Two opposing drive rollers 11 are rotatably connected between the two bases 10. A motor 12 is installed at the bottom of the support plate 9. One end of the drive roller 11 passes through one of the bases 10 and is fixedly connected to a driven gear 13. The output end of the motor 12 is fixedly connected to a drive gear 14 that meshes with the driven gear 13. The motor 12 drives the drive gear 14 to rotate, and the drive gear 14 drives the driven gear 13 to rotate, thereby driving the drive roller 1 to rotate. This allows the drive roller 1 to drive the steel pipe 27 to rotate after it comes into contact with the steel pipe 27.

[0028] A cylinder 15 is mounted on the top of the support rod 3. The output end of the cylinder 15 passes through the support plate 3 and is fixedly connected to the receiving plate 16. Limiting rods 17 are fixedly connected to the four corners of the top of the support plate 9. The receiving plate 16 has limiting holes 18 for the limiting rods 17 to pass through. A spring 19 is sleeved on the limiting rod 17. One end of the spring 19 is connected to the top of the support plate 9, and the other end is connected to the bottom of the receiving plate 16. A limiting block 20 is fixedly connected to the end of the limiting rod 17 away from the support plate 9. The cylinder 15 drives the cylinder to move the limiting rod. The moving receiving plate 16 descends, which in turn drives the support plate 9 to descend. After the active roller 11 contacts the outer wall of the steel pipe, the support plate 9 stops descending. As the receiving plate 16 descends to a suitable height, the cylinder 15 stops, and the spring 19 is in a compressed state. Under the elastic action of the spring 19, the active roller 11 presses the steel pipe 27 to prevent the steel pipe 27 from shifting during rotation. The spring 19 also plays a buffering role to prevent the output end of the cylinder 15 from extending too far and damaging the steel pipe 27.

[0029] One of the support frames 1 is equipped with a controller 4 and a sliding plate 5. A vertical plate 21 is fixedly connected to one end of the sliding plate 5. An upper horizontal plate and a lower horizontal plate are fixedly connected to the vertical plate 21. An upper laser distance sensor 6 is installed at the bottom of the upper horizontal plate, and a lower laser distance sensor 7 is installed at the top of the lower horizontal plate, so that the upper laser distance sensor 6 and the lower laser distance sensor 7 are arranged vertically. The upper laser distance sensor 6 and the lower laser distance sensor 7 are located on the outside and inside of the steel pipe 27, respectively. The controller 4 is fixed to the support frame 1, and both the upper laser distance sensor 6 and the lower laser distance sensor 7 are electrically connected to the controller 4. The upper laser distance sensor 6 can measure the distance between itself and the outer wall of the steel pipe 27 and transmit the measurement data A to the controller 4. The lower laser distance sensor 7 can measure the distance between itself and the inner wall of the steel pipe 27 and transmit the measurement data B to the controller 4. The controller 4 then subtracts the measurement data A and the measurement data B from the distance between the upper laser distance sensor 6 and the lower laser distance sensor 7 to obtain the distance between them. The wall thickness of pipe 27 is measured. The controller 4 is equipped with a display screen 8, which displays the detected wall thickness of steel pipe 27 for easy observation by the staff. The support frame 1 is equipped with a support hole 22. The end of the slide plate 5 away from the vertical plate 21 is slidably engaged with the support hole 22. By sliding the slide plate 5 in the support hole 22, the upper laser distance sensor 6 and the lower laser distance sensor 7 can be adjusted to a suitable measurement position. The side of the support frame 1 is equipped with a threaded hole 23 that communicates with the support hole 22. A clamping bolt 24 is threaded into the threaded hole 23. By tightening the clamping bolt 24, the clamping bolt 24 can press the slide plate 5, preventing the upper laser distance sensor 6 and the lower laser distance sensor 7 from moving during the measurement process. Two sliding rods 25 are fixedly connected to the vertical plate 21, which are symmetrically arranged with respect to the slide plate 5. The support frame 1 is equipped with a sliding hole 26 that slidably engages with the sliding rods 25, which improves the stability of the slide plate 5 sliding along the horizontal plane and prevents the slide plate 5 from tilting up and down, thus avoiding affecting the measurement results of the upper laser distance sensor 6 and the lower laser distance sensor 7.

[0030] Working principle:

[0031] like Figure 1-6 As shown, when the steel pipe wall thickness detection device is in use, the steel pipe 27 to be detected is placed between the two driven rollers 2, and then the cylinder 15 is started. The cylinder 15 drives the receiving plate 16 to descend, which in turn drives the support plate 9 to descend. After the driving roller 11 contacts the outer wall of the steel pipe, the support plate 9 stops descending. As the receiving plate 16 descends to a suitable height, the cylinder 15 stops, and the spring 19 is in a compressed state. Under the elastic action of the spring 19, the driving roller 11 presses the steel pipe 27 tightly.

[0032] Then, by moving the sliding plate 5, the upper laser distance sensor 6 and the lower laser distance sensor 7 are moved to their corresponding measurement positions. The motor 12 is then started, driving the drive gear 14 to rotate. The drive gear 14, through the driven gear 13, drives the drive roller 1 to rotate, which in turn drives the steel pipe 27 to rotate. During the rotation of the steel pipe 27, the upper laser distance sensor 6 measures the distance between itself and the outer wall of the steel pipe 27 and transmits the measurement data A to the controller 4. The lower laser distance sensor 7 measures the distance between itself and the inner wall of the steel pipe 27 and transmits the measurement data B to the controller 4. The controller 4 then subtracts measurement data A and measurement data B from the distance between the upper laser distance sensor 6 and the lower laser distance sensor 7 to obtain the wall thickness of the steel pipe 27. The controller 4 displays the detected wall thickness of the steel pipe 27 on the display screen 8 for easy observation by staff. This eliminates the need for manual inspection of the steel pipe wall thickness, significantly reducing measurement time, minimizing measurement error, and reducing the workload of staff.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A steel pipe wall thickness detection device, characterized in that, It includes two support frames (1), two driven rollers (2) rotatably connected between the two support frames (1), a support rod (3) fixedly connected between the tops of the two support frames (1), a steel pipe (27) placed between the two driven rollers (2), a drive mechanism for rotating the steel pipe (27) is provided on the support rod (3), a controller (4) and a slide plate (5) are provided on one of the support frames (1), an upper laser distance sensor (6) and a lower laser distance sensor (7) are provided on the slide plate (5) and are arranged vertically, the upper laser distance sensor (6) and the lower laser distance sensor (7) are located outside and inside the steel pipe (27) respectively, the upper laser distance sensor (6) and the lower laser distance sensor (7) are electrically connected to the controller (4), and a display screen (8) is provided on the controller (4).

2. The steel pipe wall thickness detection device according to claim 1, characterized in that, The drive mechanism includes a support plate (9) located below the support rod (3). Two bases (10) are fixedly connected to the bottom of the support plate (9). Two opposing active rollers (11) are rotatably connected between the two bases (10). A motor (12) is installed at the bottom of the support plate (9). The motor (12) is connected to the active rollers (11) in a transmission connection.

3. The steel pipe wall thickness detection device according to claim 2, characterized in that, One end of the drive roller (11) passes through one of the bases (10) and is fixedly connected to the driven gear (13). The output end of the motor (12) is fixedly connected to the drive gear (14) that meshes with the driven gear (13).

4. The steel pipe wall thickness detection device according to claim 2, characterized in that, A cylinder (15) is installed on the top of the support rod (3), and the output end of the cylinder (15) passes through the support rod (3) and is connected to the top of the support plate (9).

5. The steel pipe wall thickness detection device according to claim 4, characterized in that, The output end of the cylinder (15) is fixedly connected to a receiving plate (16). The top four corners of the support plate (9) are fixedly connected to limit rods (17). The receiving plate (16) is provided with a limit hole (18) for the limit rod (17) to pass through. A spring (19) is sleeved on the limit rod (17). One end of the spring (19) is connected to the top of the support plate (9), and the other end is connected to the bottom of the receiving plate (16). The end of the limit rod (17) away from the support plate (9) is fixedly connected to a limit block (20).

6. The steel pipe wall thickness detection device according to claim 1, characterized in that, One end of the skateboard (5) is fixedly connected to a vertical plate (21), and the other end is slidably connected to a support frame (1). An upper horizontal plate and a lower horizontal plate are fixedly connected on the vertical plate (21) in an up-down arrangement. The upper laser distance sensor (6) is installed at the bottom of the upper horizontal plate, and the lower laser distance sensor (7) is installed at the top of the lower horizontal plate.

7. The steel pipe wall thickness detection device according to claim 6, characterized in that, The support frame (1) is provided with a support hole (22) that slides with the slide plate (5). The side of the support frame (1) is provided with a threaded hole (23) that communicates with the support hole (22). The threaded hole (23) is internally threaded with a clamping bolt (24).

8. The steel pipe wall thickness detection device according to claim 7, characterized in that, Two sliding rods (25) are fixedly connected to the vertical plate (21) and are symmetrically arranged with respect to the sliding plate (5). The support frame (1) is provided with sliding holes (26) that slide with the sliding rods (25).

Images