Dip pipe steel liner inner circle detection tool
By designing a steel inner circle detection tool for impregnated tubes including motors, electric push rods, round rods, contacts, sliding rods, springs and pressure sensors, the problems of accuracy and efficiency of existing detection methods are solved, and the problem of low efficiency of existing detection methods is achieved. Efficient and accurate inner circle detection of steel balloon.
Patent Information
- Application Number
- CN202421044555.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-14
AI Technical Summary
The existing detection methods are difficult to ensure the accuracy of the inner circle of the steel cylinder, and the detection efficiency is low and time-consuming.
A steel tube gland inner circle detection tool was designed, including a detection table, motor, electric push rod, round rod, contact, sliding rod, spring and pressure sensor. The contacts are driven by the motor to perform circular motion and feedback using the pressure sensor. The pressure curve determines the roundness of the inner circle of the steel cylinder.
The accuracy and efficiency of steel gland inner circle detection are improved, and the inspector can intuitively observe the roundness of the steel gland inner circle, which is convenient to operate, saving time and energy.
Smart Images
Figure CN222505259U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rotating body detection, in particular to a tool for detecting the inner circle of a steel liner of an immersion pipe. Background Art
[0002] RH refining furnace is a smelting equipment in the hot processing industry. It is mostly used in the ferrous metallurgy for the final deoxidation and alloying of molten steel. It has a wide application market in the metallurgical field. The immersion tube is an important component of the RH refining furnace. The RH immersion tube is composed of ring bricks, self-flowing materials, steel bladders, and castables from the inside to the outside. The steel bladder is made by rolling the pre-laid steel sheet into a circle through a plate rolling machine, beveling the two sides of the joint and finally welding them. Since the self-flowing material is filled between the inner side of the steel bladder and the ring brick, the inner roundness of the steel bladder determines the thickness uniformity of the self-flowing material of the immersion tube, which in turn affects the service life of the immersion tube. Therefore, it is necessary to detect the inner roundness of the steel bladder.
[0003] The current detection method is to determine whether the roundness is qualified by measuring the inner diameter at different positions of the steel bladder. Since the steel bladder is a cylindrical structure with a certain height, it is difficult to ensure the accuracy of the measurement data when measuring with a caliper, and multiple measurements are required, which is time-consuming and labor-intensive, and the detection efficiency is low. Summary of the invention
[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide an immersion tube steel liner inner circle detection tool, which can improve the accuracy of steel liner inner circle detection and improve the detection efficiency, and can effectively solve the problems in the background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tool for detecting the inner circle of a steel liner of an immersion tube, comprising a detection table, a support plate is arranged at the upper end of the detection table, a motor is arranged at the upper end of the support plate, the lower end of the output shaft of the motor is connected to the mounting plate, a first electric push rod is arranged at the lower end of the mounting plate, a round rod is arranged at the lower end of the first electric push rod, a second electric push rod is arranged on the outer side of the round rod, the telescopic end of the second electric push rod is connected to a fixed block, a fixed cylinder is arranged at one end of the fixed block, a telescopic sliding rod is arranged in the fixed cylinder, a pressure plate is arranged at the bottom of the fixed cylinder, a spring is arranged between the sliding rod and the pressure plate, a pressure sensor is arranged on the pressure plate, and a contact is arranged at the other end of the sliding rod.
[0006] As a preferred technical solution of the present utility model, the end of the contact is a conical round head structure.
[0007] As a preferred technical solution of the utility model, the outer side surface of the round rod is processed into a plane, and the fixed end of the second electric push rod is fixed on the plane.
[0008] As a preferred technical solution of the utility model, the support plate and the detection platform are connected by fixing bolts.
[0009] As a preferred technical solution of the utility model, a single-chip microcomputer, a display and a control switch are provided on the upper surface of the detection platform, the output ends of the pressure sensor and the control switch are electrically connected to the input end of the single-chip microcomputer respectively, and the output end of the single-chip microcomputer is electrically connected to the input ends of the first electric push rod, the second electric push rod, the motor and the display respectively.
[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the immersion tube steel liner inner circle detection tool is reasonably designed and easy to operate. By setting the first electric push rod, it is convenient to extend the contact into different positions inside the steel liner for detection. By setting the second electric push rod, it is convenient to control the contact between the contact and the inner side surface of the steel liner during the initial detection as the initial pressure surface. By setting the fixed cylinder, the sliding rod, the spring and the pressure sensor, the roundness of the contact is judged to be qualified according to the pressure feedback from the inner side surface of the contact during the circular rotation. The pressure curve is displayed on the display, and the detection personnel can intuitively observe the roundness of the inner circle of the steel liner, which saves time and effort and greatly improves the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the structure of the utility model;
[0012] Figure 2 This is the front view of the utility model;
[0013] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;
[0014] Figure 4 It is a top view of the utility model.
[0015] In the figure: 1 testing table, 2 supporting plate, 3 fixing bolt, 4 first electric push rod, 5 round rod, 6 second electric push rod, 7 fixing block, 8 fixing cylinder, 9 sliding rod, 10 contact, 11 spring, 12 pressure plate, 13 steel liner, 14 fixture, 15 display, 16 single chip microcomputer, 17 control switch, 18 plane, 19 motor, 20 mounting plate. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments (for the convenience of description and understanding, the following is a schematic diagram of the present invention). Figure 2Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.
[0017] See also Figure 1-4 The utility model provides a technical solution: a tool for detecting the inner circle of a steel liner of an immersion tube, comprising a detection platform 1, a support plate 2 is arranged at the upper end of the detection platform 1, a motor 19 is arranged at the upper end of the support plate 2, the lower end of the output shaft of the motor 19 is connected to the mounting plate 20, a first electric push rod 4 is arranged at the lower end of the mounting plate 20, a round rod 5 is arranged at the lower end of the first electric push rod 4, a clamp 14 is arranged at the upper end of the detection platform 1 for clamping and fixing the steel liner 13, the central axis of the round rod 5 coincides with the central axis of the steel liner 13, a second electric push rod 6 is arranged on the outer side of the round rod 5, the telescopic end of the second electric push rod 6 is connected to the fixed block 7, a fixed cylinder 8 is arranged at one end of the fixed block 7, a telescopic sliding rod 9 is arranged in the fixed cylinder 8, a pressing plate 12 is arranged at the bottom of the fixed cylinder 8, a spring 11 is arranged between the sliding rod 9 and the pressing plate 12, a pressure sensor is arranged on the pressing plate 12, and a contact 10 is arranged at the other end of the sliding rod 9;
[0018] A single-chip microcomputer 16, a display 15 and a control switch 17 are provided on the upper surface of the testing platform 1. The output ends of the pressure sensor and the control switch 17 are electrically connected to the input ends of the single-chip microcomputer 16 respectively. The output ends of the single-chip microcomputer 16 are electrically connected to the input ends of the first electric push rod 4, the second electric push rod 6, the motor 19 and the display 15 respectively. The contact 10 is fitted with the inner side of the steel bladder 13. Under the driving action of the motor 19, the contact 10 makes a circular motion. If a bulge appears on the inner surface of the steel bladder 13, the contact 10 contracts to provide a compression force to the spring 11. The pressure sensor on the pressure plate 12 is subjected to the force to transmit the signal to the single-chip microcomputer 16. The single-chip microcomputer 16 processes the signal and displays the curve fluctuation on the display 15; if a dent appears on the inner surface of the steel bladder 13, the contact 10 does not contact the inner surface when it rotates, and no force is applied to the pressure sensor. At this time, the displayed pressure curve is empty, and the roundness of the inner circle of the steel bladder 13 is judged according to the curve displayed by the pressure sensor.
[0019] Furthermore, in order to reduce the friction with the inner side of the steel liner 13 and improve the detection accuracy, the end of the contact 10 is a conical round head structure.
[0020] Furthermore, in order to facilitate the installation of the second electric push rod 6 , the outer side surface of the round rod 5 is processed into a plane 18 , and the fixed end of the second electric push rod 6 is fixed on the plane 18 .
[0021] Furthermore, in order to facilitate the use of the detection tool in any occasion, the support plate 2 and the detection platform 1 are connected by fixing bolts 3 to facilitate the disassembly and installation of the detection tool.
[0022] When in use: the steel liner 13 is placed and fixed by the clamp 14, the central axis of the steel liner 13 coincides with the central axis of the round rod 5, and the control switch 17 is turned on at this time to control the extension of the first electric push rod 4, and the contact 10 is extended to a suitable position in the steel liner 13, and then the second electric push rod 6 is started to make the contact 10 contact with the inner side of the steel liner 13, and the pressure signal of this contact position is set to "0", and then the motor 19 is started to control the rotation of the contact 10. If the inner side of the steel liner 13 has the same roundness, a straight line is displayed on the display 15; if there is a protrusion on the inner surface of the steel liner 13 , the contact 10 contracts, at this time the spring 11 is compressed, the pressure sensor on the pressure plate 12 is forced to transmit the signal to the single chip microcomputer 16, the single chip microcomputer 16 processes the signal and displays an upward curve fluctuation on the display 15; if the inner surface of the steel bladder 13 is concave, the contact 10 does not contact its inner surface when it rotates, and no force is applied to the pressure sensor, and the display does not show that there is a line segment here. By adjusting the different positions of the contact 10 in the steel bladder 13 through the first electric push rod 4, and observing the curves at different heights in the steel bladder 13, it can be judged whether the roundness of the inner circle of the steel bladder 13 is qualified.
[0023] The utility model can be conveniently operated, occupies little space when in use, is easy to operate and use; can quickly detect the roundness inside the steel bladder 13, not only has high accuracy, but also can intuitively judge the roundness inside the steel bladder 13, greatly improving the detection efficiency.
[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A tool for detecting the inner circle of a steel liner of an immersion tube, comprising a detection platform (1), characterized in that: A support plate (2) is arranged at the upper end of the detection platform (1), a motor (19) is arranged at the upper end of the support plate (2), the lower end of the output shaft of the motor (19) is connected to the mounting plate (20), a first electric push rod (4) is arranged at the lower end of the mounting plate (20), a round rod (5) is arranged at the lower end of the first electric push rod (4), a second electric push rod (6) is arranged on the outer side of the round rod (5), the telescopic end of the second electric push rod (6) is connected to the fixed block (7), a fixed cylinder (8) is arranged at one end of the fixed block (7), a telescopic sliding rod (9) is arranged in the fixed cylinder (8), a pressing plate (12) is arranged at the bottom of the fixed cylinder (8), a spring (11) is arranged between the sliding rod (9) and the pressing plate (12), a pressure sensor is arranged on the pressing plate (12), and a contact (10) is arranged at the other end of the sliding rod (9).
2. A dip tube steel liner inner circle detection tool according to claim 1, characterized in that: The end of the contact (10) is a conical round head structure.
3. The tool for detecting the inner circle of a steel liner of an immersion tube according to claim 1, characterized in that: The outer side surface of the round rod (5) is processed into a plane (18), and the fixed end of the second electric push rod (6) is fixed on the plane (18).
4. The tool for detecting the inner circle of a steel liner of an immersion tube according to claim 1, characterized in that: The support plate (2) and the detection platform (1) are connected via fixing bolts (3).
5. The tool for detecting inner circle of steel liner of an immersion tube according to claim 1, characterized in that: A single-chip microcomputer (16), a display (15) and a control switch (17) are arranged on the upper surface of the detection platform (1); the output ends of the pressure sensor and the control switch (17) are respectively electrically connected to the input end of the single-chip microcomputer (16); and the output end of the single-chip microcomputer (16) is respectively electrically connected to the input ends of the first electric push rod (4), the second electric push rod (6), the motor (19) and the display (15).