Steel pipe speed measuring device

Abstract

The utility model relates to a steel pipe speed measuring device, comprising a mounting plate; the lower supporting plate is in sliding connection with the mounting plate; the middle supporting plate is hinged to the lower supporting plate, and relative rotation exists between the middle supporting plate and the lower supporting plate; the upper supporting plate is hinged to the middle supporting plate, and relative rotation exists between the upper supporting plate and the middle supporting plate; the transmission shaft is mounted on the upper supporting plate; the roller is connected with the transmission shaft, synchronously rotates with the transmission shaft, is in contact with the steel pipe and synchronously rotates with the steel pipe; the encoder is arranged at one end of the transmission shaft and used for measuring the rotating speed of the transmission shaft so as to detect the transmission speed of the steel pipe. According to the steel pipe speed measuring device, the gravity of the steel pipe presses the speed measuring device to incline, the speed measuring device keeps 100% contact between the rolling wheel and the steel pipe through the resilience force of the hinge, and the speed measuring device is matched with the high-precision speed measuring mode of the coding disc, so that the slipping phenomenon is effectively avoided, and the speed measuring accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe production and processing technology, and in particular to a steel pipe speed measuring device. Background Technology

[0002] Monitoring the movement speed of steel pipes is a key parameter for ensuring product quality and production efficiency. Traditional speed measuring devices mostly use mechanical contact sensors or photoelectric encoders to indirectly calculate speed by measuring the rotation or displacement of the steel pipe. However, the above-mentioned existing technologies have the following problems:

[0003] ① Unstable clamping leads to speed measurement error: Current devices usually obtain speed signals by clamping the surface of the steel pipe with mechanical rollers. However, the surface of the steel pipe may have oil stains, oxide layers or slight deformation, which will cause the rollers to not make tight contact with the steel pipe, resulting in sliding friction, which seriously affects the speed measurement accuracy.

[0004] ②Low integration and complex structure: In the existing technology, the clamping mechanism and speed measuring device require additional mounting brackets and adjustment mechanisms, which occupy a lot of space and take a long time to debug, making it difficult to adapt to the needs of compact production lines.

[0005] ③ Poor environmental adaptability: In high-temperature, dusty or humid industrial environments, the mechanical parts of traditional contact sensors are prone to wear or failure, leading to increased maintenance costs.

[0006] Therefore, there is an urgent need for a speed measuring device that can stably press the surface of steel pipes, resist environmental interference, and has a compact structure, in order to improve the automation level and measurement reliability of steel pipe production lines. Utility Model Content

[0007] Therefore, the technical problem to be solved by this utility model is to overcome the problems of inaccurate measurement, complex structure and poor environmental adaptability of the existing devices for monitoring the speed of steel pipes during movement.

[0008] To solve the above-mentioned technical problems, this utility model provides a steel pipe speed measuring device, comprising: a mounting plate; a lower support plate slidably connected to the mounting plate; an intermediate support plate hinged to the lower support plate, and the intermediate support plate and the lower support plate have relative rotation; an upper support plate hinged to the intermediate support plate, and the upper support plate and the intermediate support plate have relative rotation; a transmission shaft mounted on the upper support plate; a roller connected to the transmission shaft, and the roller rotates synchronously with the transmission shaft, the roller contacting and rotating synchronously with the steel pipe; and an encoder disposed at one end of the transmission shaft, and the encoder is used to measure the rotational speed of the transmission shaft to detect the transmission speed of the steel pipe. The steel pipe speed measuring device of this utility model, when the steel pipe enters the speed measuring device, the weight of the steel pipe will tilt the speed measuring device. The speed measuring device maintains 100% contact between the polyurethane roller and the steel pipe through the rebound force of the hinge. As the steel pipe moves, the elastic polyurethane roller rotates synchronously under the action of friction, driving the encoder on the wheel axle to rotate. The encoder transmits motion signals to the terminal PCL through rotation, realizing real-time monitoring and management of the steel pipe speed.

[0009] In one embodiment of this utility model, at least one buffer spring is provided between the mounting plate and the lower support plate, and the buffer spring is used to buffer the pressure of the steel pipe on the roller.

[0010] In one embodiment of the present invention, at least one first hinge is provided between the intermediate support plate and the lower support plate.

[0011] In one embodiment of the present invention, at least one second hinge is provided between the upper support plate and the middle support plate, and the second hinge and the first hinge are respectively located on both sides of the middle support plate.

[0012] In one embodiment of this utility model, the upper support plate is provided with two bearings, the transmission shaft is connected to the inner ring of the bearings, and the transmission shaft is rotatably connected to the upper support plate through the bearings.

[0013] In one embodiment of this utility model, two bearing cover plates are installed on the upper support plate, and the two bearing cover plates are configured one-to-one with two bearings. The bearing cover plates are used to limit the bearings on the upper support plate.

[0014] In one embodiment of the present invention, the mounting plate is a rectangular flat plate, and a first groove is provided on one long side of the mounting plate. The cross-section of the first groove is U-shaped, and sliders are installed on the two opposite inner walls of the first groove. The lower support plate is slidably connected to the sliders.

[0015] In one embodiment of this utility model, the lower support plate is a rectangular flat plate, one end of the lower support plate is disposed in the first groove, and a guide rail is provided between the two side walls of the lower support plate and the first groove, the guide rail being slidably connected to the slider.

[0016] In one embodiment of the present invention, at least one guide shaft is mounted on the mounting plate, and the guide shaft is locked to the mounting component by fasteners.

[0017] In one embodiment of this utility model, the roller is a polyurethane roller.

[0018] Compared with the prior art, the steel pipe speed measuring device of this utility model has the following advantages:

[0019] 1. High-precision speed measurement: The elastic clamping wheel makes close contact with the surface of the steel pipe, and the high-precision speed measurement method with the encoder disk effectively avoids slippage and improves the accuracy of speed measurement.

[0020] 2. Non-damaging: The elastic clamping wheel is made of soft polyurethane material, which ensures speed measurement without causing scratches or other damage to the surface of the steel pipe, thus ensuring the quality of the steel pipe.

[0021] 3. Simple structure, easy to install and maintain: The device has a compact overall structure, clear connections between components, and adjustable feet on the base for easy movement to different positions. In addition, each component is easy to disassemble and replace, reducing maintenance costs.

[0022] 4. High adaptability: It can adapt to the speed measurement needs of steel pipes with different diameters and materials, and has a wide range of applications.

[0023] Compared with the prior art, the steel pipe speed measuring device of this utility model has the following improvements:

[0024] 1. Precise Measurement of Steel Pipe Running Speed: Accurately measuring the real-time running speed of steel pipes is crucial during production, processing, and transportation. This device, through a specially designed clamping mechanism, tightly adheres to the surface of the steel pipe, ensuring that the speed sensor can stably and accurately acquire the pipe's motion data. This provides a reliable basis for subsequent adjustments to production process parameters, quality control, and the automated operation of the production line.

[0025] 2. Ensuring the Continuity and Stability of the Production Process: Steel pipe production is often a continuous assembly line operation. Any abnormal fluctuation in speed can cause product quality problems, such as uneven pipe diameter, wall thickness deviation, etc., and may even lead to production line jams or shutdowns. This clamping speed measuring device can monitor the speed in real time. Once an abnormal speed occurs, it can promptly feed back to the control system, automatically adjusting the equipment operating parameters to maintain the stability of the production process, effectively reducing the defect rate and improving production efficiency.

[0026] 3. Adaptable to steel pipes of different specifications and materials: Steel pipes on the market come in a variety of specifications, varying in diameter, wall thickness, and material. This invention aims to design a clamping speed measuring device with wide applicability. Its clamping mechanism can be flexibly adjusted according to the specific dimensions of the steel pipe, and it can adapt to the surface characteristics of steel pipes of different materials. Whether it is a smooth stainless steel pipe or a carbon steel pipe with a certain degree of roughness, it can achieve stable clamping and accurate speed measurement.

[0027] 4. Reduced Costs and Errors in Manual Measurement: Traditional methods of measuring the speed of steel pipes often rely on manual operation, which is not only labor-intensive and time-consuming but also prone to measurement errors due to human factors. This device achieves automated speed measurement, greatly reducing manual intervention and labor costs, while improving the accuracy and consistency of measurements, making the production process more standardized and regulated.

[0028] 5. Enhanced Equipment Safety and Reliability: In environments where steel pipes operate at high speeds, unstable speed measuring devices may pose safety hazards, such as loose parts leading to equipment damage or even injury to operators. This clamping speed measuring device is designed with safety and reliability in mind, using high-strength, durable materials to ensure long-term stable operation in harsh industrial environments, providing safe and reliable speed monitoring for production operations. Attached Figure Description

[0029] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0030] Figure 1 This is an isometric side view of the steel pipe speed measuring device in a preferred embodiment of the present invention;

[0031] Figure 2 This is a front view of the steel pipe speed measuring device in a preferred embodiment of the present invention;

[0032] Figure 3 This is a side view of the steel pipe speed measuring device in a preferred embodiment of the present invention.

[0033] Explanation of reference numerals in the accompanying drawings: Mounting plate 1; First groove 11; Slider 12; Guide shaft 13; Lower support plate 2; Guide rail 21; Middle support plate 3; Upper support plate 4; Bearing 41; Bearing cover plate 42; Drive shaft 5; Roller 6; Encoder 7; Buffer spring 8; First hinge 91; Second hinge 92. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0035] Reference Figure 1-3 As shown, the steel pipe speed measuring device of this utility model includes: a mounting plate 1; a lower support plate 2, which is slidably connected to the mounting plate 1; an intermediate support plate 3, which is hinged to the lower support plate 2, and the intermediate support plate 3 and the lower support plate 2 have relative rotation; an upper support plate 4, which is hinged to the intermediate support plate 3, and the upper support plate 4 and the intermediate support plate 3 have relative rotation; a transmission shaft 5, which is mounted on the upper support plate 4; a roller 6, which is connected to the transmission shaft 5, and the roller 6 rotates synchronously with the transmission shaft 5, the roller 6 is in contact with the steel pipe and rotates synchronously with the steel pipe; and an encoder 7, which is disposed at one end of the transmission shaft 5, and the encoder 7 is used to measure the rotational speed of the transmission shaft 5 to detect the transmission speed of the steel pipe. The transmission shaft 5 passes through the roller 6, enabling the roller 6 to move synchronously with the transmission shaft 5. An encoder 7 is connected to one side of the transmission shaft 5, which transmits the speed at which the steel pipe passes through, thus perfectly controlling the production line's needs. The pressure generated when the steel pipe passes through can be freely adjusted by splicing together three connecting plates: the lower support plate 2, the middle support plate 3, and the upper support plate 4, as well as the hinges between them.

[0036] In the above structure, at least one buffer spring 8 is provided between the mounting plate 1 and the lower support plate 2. The buffer spring 8 is used to buffer the pressure of the steel pipe on the roller 6. Preferably, the number of buffer springs 8 is set to three. Three buffer springs 8 are placed between the mounting plate 1 and the lower support plate 2. When the steel pipe and the roller 6 are in full contact, they protect the steel pipe and provide a certain buffering effect, which can avoid speed measurement errors.

[0037] In the above structure, at least one first hinge 91 is provided between the intermediate support plate 3 and the lower support plate 2. At least one second hinge 92 is provided between the upper support plate 4 and the intermediate support plate 3, with the second hinge 92 and the first hinge 91 located on opposite sides of the intermediate support plate 3. The lower support plate 2, the intermediate support plate 3, and the upper support plate 4 are all rectangular flat plates. When no steel pipe is placed on the roller 6, the lower support plate 2, the intermediate support plate 3, and the upper support plate 4 are basically in the same plane, and are arranged from bottom to top. The second hinge 92 and the first hinge 91 are located on opposite sides of the plane containing the lower support plate 2, the intermediate support plate 3, and the upper support plate 4, respectively. By setting the second hinge 92 and the first hinge 91 on opposite sides, the intermediate support plate 3 and the upper support plate 4 can be offset in different directions. When a steel pipe is placed on roller 6, since the lower support plate 2, the middle support plate 3, and the upper support plate 4 are connected by hinges, misalignment will occur between the middle support plate 3 and the lower support plate 2, and between the upper support plate 4 and the middle support plate 3, as the steel pipe moves. Preferably, the number of first hinges 91 and second hinges 92 is set to three each, with the three first hinges 91 on the same straight line and the three second hinges 92 on the same straight line, thus forming two rows of hinges.

[0038] Hinges are installed on both sides between the lower support plate 2 and the middle support plate 3, and between the middle support plate 3 and the upper support plate 4. Three buffer springs 8 are installed between the mounting plate 1 and the lower support plate 2 to buffer the steel pipe when it is pressed down. The roller 6 is mounted on the top through bearings and can move back and forth and up and down through the hinge between the lower support plate 2, the middle support plate 3 and the upper support plate 4. This ensures that the roller 6 can make close contact with the surface of the steel pipe without damaging the surface of the steel pipe under different pipe diameters and movement conditions.

[0039] In the above structure, the upper support plate 4 is equipped with two bearings 41. The transmission shaft 5 is connected to the inner ring of the bearing 41, and the transmission shaft 5 is rotatably connected to the upper support plate 4 through the bearing 41. The bearing 41 is preferably a deep groove ball bearing. Two bearing cover plates 42 are installed on the upper support plate 4. The two bearing cover plates 42 and the two bearings 41 are set one-to-one. The bearing cover plates 42 are used to limit the bearings 41 on the upper support plate 4. The roller 6 and the transmission shaft 5 can rotate smoothly on the upper support plate 4 through the deep groove bearings on both sides. An encoder 7 (preferably a solid shaft encoder) is connected to one side of the transmission shaft 5. When the steel pipe passes through, the roller 6 rotates, driving the encoder to rotate, and the transmission speed of the steel pipe is monitored in real time. The real-time speed of the encoder 7 is transmitted to the terminal PLC in a timely manner, and the data can be remotely monitored and managed through the PLC. The encoder 7 is a solid shaft encoder, which has high precision, high speed, high reliability and is easy to install. The structure of the solid shaft encoder is relatively simple, mainly composed of a rotary encoder disk, a photoelectric sensor and a signal processor.

[0040] In the above structure, the mounting plate 1 is a rectangular flat plate, and a first groove 11 is provided on one long side of the mounting plate 1. The cross-section of the first groove 11 is U-shaped, and sliders 12 are installed on both opposite inner walls of the first groove 11. The lower support plate 2 is slidably connected to the sliders 12. The lower support plate 2 is a rectangular flat plate, one end of the lower support plate 2 is located in the first groove 11, and a guide rail 21 is provided between the two opposite side walls of the lower support plate 2 and the first groove 11. The guide rail 21 is slidably connected to the sliders 12.

[0041] The steel pipe speed measuring device of this utility model has at least one guide shaft 13 mounted on the mounting plate 1. The guide shaft 13 is locked to the mounting component by fasteners. Preferably, there are two guide shafts 13, both mounted on the bottom of the mounting plate 1. The guide shafts 13 can be directly welded to the equipment, or the installation position of the speed measuring device can be freely adjusted by loosening or loosening the adjusting bolts on both sides of the guide shaft 13. This device, whether directly welded to the required speed measuring equipment or fixed by fasteners, does not require much installation space and is simple and compact.

[0042] Preferably, the roller 6 is a polyurethane roller. The wheel body of the roller 6 is made of thickened polyurethane material, which has high mechanical strength, oxidation stability and flexibility, excellent resilience, oil resistance, solvent resistance, water resistance and fire resistance; the polyurethane roller in this utility model has high strength and excellent wear resistance, and can withstand heavy loads and frequent friction. When used in the Copeland wheel 6 of this utility model, it can extend the service life of the roller 6 during the transmission process in contact with the steel pipe.

[0043] The lower support plate 2, the middle support plate 3, and the upper support plate 4 are made of 6061 aluminum alloy plates (with hard anodized surface treatment to ensure high surface hardness, high wear resistance, good insulation, and corrosion resistance). The lower support plate 2, the middle support plate 3, and the upper support plate 4 are connected by hinges. Two retractable guide shafts 11 are installed at the bottom. The guide shafts 11 are welded to the roller conveying equipment to adapt to the speed measurement requirements of the steel pipe under different installation environments.

[0044] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A steel pipe speed measuring device, characterized in that, include: Mounting plate; The lower support plate is slidably connected to the mounting plate. An intermediate support plate is hinged to a lower support plate, and the intermediate support plate and the lower support plate have relative rotation. An upper support plate is hinged to an intermediate support plate, and the upper support plate and the intermediate support plate have relative rotation. The drive shaft is mounted on the upper support plate; A roller is connected to a drive shaft and rotates synchronously with the drive shaft. The roller is in contact with a steel pipe and rotates synchronously with the steel pipe. An encoder is mounted at one end of the drive shaft and is used to measure the rotational speed of the drive shaft to detect the transmission speed of the steel pipe.

2. The steel pipe speed measuring device according to claim 1, characterized in that: At least one buffer spring is provided between the mounting plate and the lower support plate, and the buffer spring is used to buffer the pressure of the steel pipe on the roller.

3. The steel pipe speed measuring device according to claim 1, characterized in that: At least one first hinge is provided between the intermediate support plate and the lower support plate.

4. The steel pipe speed measuring device according to claim 3, characterized in that: At least one second hinge is provided between the upper support plate and the middle support plate, and the second hinge and the first hinge are respectively located on both sides of the middle support plate.

5. The steel pipe speed measuring device according to claim 1, characterized in that: The upper support plate is provided with two bearings, and the transmission shaft is connected to the inner ring of the bearing. The transmission shaft is rotatably connected to the upper support plate through the bearing.

6. The steel pipe speed measuring device according to claim 5, characterized in that: Two bearing cover plates are installed on the upper support plate. The two bearing cover plates are arranged in a one-to-one correspondence with the two bearings. The bearing cover plates are used to limit the bearings on the upper support plate.

7. The steel pipe speed measuring device according to claim 1, characterized in that: The mounting plate is a rectangular flat plate, and a first groove is provided on one long side of the mounting plate. The cross-section of the first groove is U-shaped, and sliders are installed on the two opposite inner walls of the first groove. The lower support plate is slidably connected to the sliders.

8. The steel pipe speed measuring device according to claim 7, characterized in that: The lower support plate is a rectangular flat plate. One end of the lower support plate is disposed in the first groove, and a guide rail is provided between the two side walls of the lower support plate and the first groove. The guide rail is slidably connected to the slider.

9. The steel pipe speed measuring device according to claim 1, characterized in that: At least one guide shaft is mounted on the mounting plate, and the guide shaft is locked to the mounting component by fasteners.

10. The steel pipe speed measuring device according to claim 1, characterized in that: The roller is a polyurethane roller.

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