A steel column strength detection device for steel production

Abstract

The present invention discloses a steel column strength detection device for steel production, belonging to the technical field of steel column strength detection devices. It includes a machine shell. On both sides of the inner side wall of the machine shell, a stretching device and a stretching seat are installed. The stretching seat includes an arc frame, a ball, and a base. A ball is rotatably connected to the top of the arc frame, and a base is installed at the bottom of the arc frame. A rotating seat is installed in the middle of the bottom of the machine shell. On both sides of the top of the machine shell, a bending measurement device is installed. A nozzle and a magnetization head are installed on the back of the inner side wall of the machine shell. The nozzle is connected to a liquid tank through a pipeline and a water pump. The steel column strength detection device for steel production of the present invention can automatically measure the defects of the steel column by spraying magnetic suspension liquid and using the principle of magnetic particle flaw detection, and integrates the tensile detection and bending detection of the steel column, facilitating the detection of various aspects of data of the steel column, without the need to purchase multiple machines, saving costs.

Description

Technical Field

[0001] The present invention relates to the field of steel column strength detection devices, and particularly to a steel column strength detection device for steel production. Background Technique

[0002] Pipe materials are essential materials for construction projects. Commonly used ones include water supply pipes, drainage pipes, gas pipes, floor heating pipes (such as PP-R pipes), wire conduits, rainwater pipes, etc. With the development of science and technology, the pipe materials used in home decoration have also experienced a development process from ordinary cast iron pipes → cement pipes → (reinforced concrete pipes, asbestos cement pipes) → ductile iron pipes, galvanized steel pipes → plastic pipes and aluminum-plastic composite pipes. Pipe materials are now widely used in all aspects of people's lives. Unqualified pipe materials directly affect people's quality of life and physical health. At the beginning of 2014, some media exposed the problem of individual enterprises using recycled waste to produce drinking water distribution pipe fittings, which had a bad social impact. Therefore, manufacturers all conduct detection tests on pipe materials. The detection items for pipe materials are: density, melt mass flow rate, thermal stability, volatile content, moisture content, carbon black content, carbon black dispersion, pigment dispersion, resistance to gas components, resistance to rapid crack propagation, resistance to slow crack growth, hydrostatic strength, elongation at break, longitudinal shrinkage rate, ring stiffness, impact performance, ring flexibility, oven test, creep ratio, hydrostatic test, drop hammer impact, sanitary performance, resistance to environmental stress cracking detection, oxidation induction time detection, Vicat softening temperature detection, composition analysis, composition content detection, etc. The most common detection item for stainless steel hollow pipe materials is the bending resistance test.

[0003] The existing steel column strength detection devices for steel production have the following disadvantages: 1. The existing steel column strength detection devices for steel production cannot automatically detect defects such as cracks, air bubbles or non-metallic inclusions in steel columns, and manual observation is required, which is very troublesome; 2. The existing steel column strength detection devices for steel production cannot integrate the bending test and the tensile test. One machine can only detect one kind of test data of steel columns, and multiple machines need to be purchased, wasting costs. Summary of the Invention

[0004] The purpose of the present invention is to provide a steel column strength detection device for steel production. The steel column strength detection device of the present invention can automatically measure the defects of steel columns by spraying magnetic suspension liquid and using the principle of magnetic particle flaw detection, and integrates the tensile detection and bending detection of steel columns, which is convenient for detecting various aspects of data of steel columns, and there is no need to purchase multiple machines, saving costs, so as to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A steel column strength detection device for steel production, including a machine shell. On both sides of the inner side wall of the machine shell, a stretching device and a stretching seat are installed. The stretching seat includes an arc frame, a ball and a base. A ball is rotatably connected to the top of the arc frame, and a base is installed at the bottom of the arc frame. A rotating seat is installed in the middle of the bottom of the machine shell. The rotating seat includes a V-shaped frame, a steering roller and an electric telescopic rod. The electric telescopic rod is installed at the top of the V-shaped frame. A groove is opened at the top of the V-shaped frame, and a steering roller is installed on the inner side wall of the groove. There are several groups of the groove and the steering roller. A transmission rod is installed at one end of the steering roller, and a gear is installed at the end of the transmission rod. The outer side wall of the gear is meshed and connected with a chain. The power input end of the transmission rod is connected to the power output end of a second motor. The second motor is installed at one end of the V-shaped frame through a machine base. On both sides of the top of the machine shell, a bending measurement device is installed. A spray head and a magnetization head are installed on the back of the inner side wall of the machine shell. The spray head is connected to a liquid tank through a pipeline and a water pump.

[0007] As a further scheme of the present invention: A door is rotatably connected to the opening of the machine shell through a hinge, and a handle is installed on the surface of the door.

[0008] As a further scheme of the present invention: The door includes a metal frame and tempered glass, and the tempered glass is installed on the inner side wall of the metal frame.

[0009] As a further scheme of the present invention: The bending measurement device includes a first hydraulic press, a bending claw and a pressure sensor. The bending claw is installed at the bottom of the first hydraulic press, and the pressure sensor is installed in the middle of the bottom of the bending claw.

[0010] As a further scheme of the present invention: A liquid inlet is opened at the top of the liquid tank, and a liquid outlet is opened at the lower part of the liquid tank. Sealing covers are detachably connected to the outer side walls of the liquid inlet and the liquid outlet.

[0011] As a further scheme of the present invention: A stirring assembly is installed inside the liquid tank, and the power input end of the stirring assembly is connected to the power output end of a first motor.

[0012] As a further scheme of the present invention: The stretching device includes a second hydraulic press, a tensile sensor and a three-jaw chuck. The tensile sensor and the three-jaw chuck are installed at the end of the second hydraulic press.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The steel column strength detection device for steel production of the present invention can automatically measure the defects of the steel column by spraying magnetic suspension fluid and using the principle of magnetic particle flaw detection. Before working, water (or kerosene) and magnetic powder are added into the liquid tank through the liquid inlet. The first motor and the second motor are turned on. The first motor drives the stirring assembly to rotate, mixing the magnetic powder and the carrier liquid evenly to form magnetic suspension fluid. The steel column to be detected is clamped tightly by the three-jaw chuck. The water pump is turned on and the electric telescopic rod is controlled to extend, so that the top of the V-shaped frame is connected to the steel column. The second motor (there are multiple second motors, which form a second motor group) drives several turning rollers to rotate synchronously through gears, chains and transmission rods, making the rotation directions of the turning rollers consistent. At this time, the turning rollers drive the steel column to rotate slowly. The water pump pumps the magnetic suspension fluid from the liquid tank to the nozzle through the pipeline and sprays it evenly on the outer side wall of the steel column. At this time, the steel column is magnetized by the magnetization head. If there are no defects on the magnetized steel column, the magnetic characteristics of each part are basically the same. However, when there are defects such as cracks, pores or non-metallic inclusions, since they will cause air gaps or non-magnetic conductive gaps on the steel column, the magnetic resistance of the defect part will be greatly increased, and the normal propagation of the magnetic force lines in the steel column will be blocked. According to the principle of magnetic continuity, at this time, the magnetic force lines of the magnetization field are forced to change the path and escape from the steel column, and a leakage magnetic field is formed on the surface of the steel column. The magnetic powder can move to the weak leakage magnetic field relatively easily by virtue of the good fluidity of the liquid. The magnetic powder is adsorbed at the position with the leakage magnetic field, thus forming a magnetic mark showing the shape of the defect, and the defect can be detected more intuitively, solving the problem that the existing steel column strength detection device for steel production cannot automatically detect defects such as cracks, bubbles or non-metallic inclusions of the steel column.

[0015] 2. The steel column strength detection device for steel production of the present invention integrates the tensile detection and bending detection of the steel column, which is convenient for detecting various data of the steel column, without the need to purchase multiple machines, saving costs. When the tensile force of the steel column needs to be detected, both ends of the steel column are first clamped tightly by the three-jaw chuck. If the tensile value at one end needs to be detected, the stretching device on one side is opened. If the tensile values at both ends need to be detected, the stretching devices on both sides are opened simultaneously. The second hydraulic press shortens, and the three-jaw chuck slides easily on the top of the arc-shaped frame through the balls, and the steel column is stretched. The tensile value can be detected by the tensile force sensor. When the bending value needs to be detected, first adjust the positions of the three-jaw chucks at both ends until the point to be detected on the steel column is directly below one of the bending measurement devices. Open the bending measurement device, and the first hydraulic press extends to drive the bending claws to bend the steel column. The pressure sensor can detect the test data, solving the problem that the existing steel column strength detection device for steel production cannot integrate the bending test and the tensile test. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic cross-sectional structure of a steel column strength detection device for steel production according to an embodiment of the present invention Figure 1 ;

[0017] Figure 2 Schematic cross-sectional structure of a steel column strength detection device for steel production according to an embodiment of the present invention Figure 2 ;

[0018] Figure 3 Schematic structural diagram of a rotating seat of a steel column strength detection device for steel production according to an embodiment of the present invention;

[0019] Figure 4 Schematic structural diagram of a stretching device and a stretching seat of a steel column strength detection device for steel production according to an embodiment of the present invention;

[0020] Figure 5 Schematic structure of a steel column strength detection device for steel production according to an embodiment of the present invention Figure 1 ;

[0021] Figure 6 Schematic structure of a steel column strength detection device for steel production according to an embodiment of the present invention Figure 2 。

[0022] In the figure: 1, housing; 2, stretching device; 201, second hydraulic press; 202, tension sensor; 203, three-jaw chuck; 3, stretching seat; 301, arc frame; 302, ball; 303, base; 4, magnetization head; 5, rotating seat; 501, V-shaped frame; 502, steering roller; 503, electric telescopic rod; 6, bending measurement device; 601, first hydraulic press; 602, bending claw; 603, pressure sensor; 7, pipeline; 8, nozzle; 9, first motor; 10, liquid tank; 11, stirring assembly; 12, groove; 13, transmission rod; 14, gear; 15, chain; 16, second motor; 17, machine base; 18, liquid inlet; 19, liquid outlet; 20, sealing cover; 21, water pump; 22, hinge; 23, door; 2301, metal frame; 2302, tempered glass; 24, handle. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 to 6, in the embodiments of the present invention, a steel column strength detection device for steel production includes a machine shell 1. On both sides of the inner side wall of the machine shell 1, a stretching device 2 and a stretching seat 3 are installed. The stretching seat 3 includes an arc frame 301, a ball 302, and a base 303. A ball 302 is rotatably connected to the top of the arc frame 301, and a base 303 is installed at the bottom of the arc frame 301. A rotating seat 5 is installed in the middle of the bottom of the machine shell 1. On both sides of the top of the machine shell 1, a bending measurement device 6 is installed. On the back of the inner side wall of the machine shell 1, a spray head 8 and a magnetization head 4 are installed. The spray head 8 is connected to a liquid tank 10 through a pipeline 7 and a water pump 21. The steel column strength detection device of the present invention can automatically measure the defects of the steel column by spraying magnetic suspension liquid and using the principle of magnetic particle flaw detection, and integrates the tensile detection and bending detection of the steel column, which is convenient for detecting various aspects of data of the steel column, without the need to purchase multiple machines, saving costs.

[0025] Among them, a door 23 is rotatably connected to the opening of the machine shell 1 through a hinge 22, and a handle 24 is installed on the surface of the door 23, with good dust-proof effect.

[0026] Among them, the door 23 includes a metal frame 2301 and tempered glass 2302. The tempered glass 2302 is installed on the inner side wall of the metal frame 2301, which is convenient for observing the internal experimental situation.

[0027] Among them, the rotating seat 5 includes a V-shaped frame 501, a steering roller 502, and an electric telescopic rod 503. The electric telescopic rod 503 is installed at the top of the V-shaped frame 501. A groove 12 is opened at the top of the V-shaped frame 501, and a steering roller 502 is installed on the inner side wall of the groove 12. There are several groups of the groove 12 and the steering roller 502. A transmission rod 13 is installed at one end of the steering roller 502, and a gear 14 is installed at the end of the transmission rod 13. A chain 15 is meshed with the outer side wall of the gear 14. The power input end of the transmission rod 13 is connected to the power output end of a second motor 16. The second motor 16 is installed at one end of the V-shaped frame 501 through a machine base 17, which is convenient for rotating the steel column.

[0028] Among them, the bending measurement device 6 includes a first hydraulic press 601, a bending claw 602, and a pressure sensor 603. The bending claw 602 is installed at the bottom of the first hydraulic press 601, and the pressure sensor 603 is installed in the middle of the bottom of the bending claw 602, which is convenient for measuring the bending value.

[0029] Among them, a liquid inlet 18 is opened at the top of the liquid tank 10, and a liquid outlet 19 is opened at the lower part of the liquid tank 10. Sealing covers 20 are detachably connected to the outer side walls of the liquid inlet 18 and the liquid outlet 19, which is convenient for adding or discharging liquid.

[0030] Among them, a stirring assembly 11 is installed inside the liquid tank 10. The power input end of the stirring assembly 11 is connected to the power output end of a first motor 9, which is convenient for mixing magnetic powder and carrier liquid evenly to form magnetic suspension liquid.

[0031] Among them, the stretching device 2 includes a second hydraulic press 201, a tensile force sensor 202 and a three-jaw chuck 203. The tensile force sensor 202 and the three-jaw chuck 203 are installed at the end of the second hydraulic press 201, which is convenient for detecting stretching data.

[0032] The working principle of the present invention is as follows: The steel column strength detection device for steel production of the present invention can automatically measure the defects of steel columns by spraying magnetic suspension liquid and using the principle of magnetic particle flaw detection. Before work, water (or kerosene) and magnetic powder are added into the liquid tank 10 through the liquid inlet 18. The first motor 9 and the second motor 16 are turned on. The first motor 9 drives the stirring assembly 11 to rotate, mixing the magnetic powder and the carrier liquid evenly to form magnetic suspension liquid. The steel column to be detected is clamped tightly by the three-jaw chuck 203. The water pump 21 is turned on and the electric telescopic rod 503 is controlled to extend, so that the top of the V-shaped frame 501 is connected to the steel column. The second motor 16 (there are multiple second motors 16, forming a group of second motors 16) drives a number of turning rollers 502 to rotate synchronously through the gear 14, the chain 15 and the transmission rod 13, making the rotation directions of the turning rollers 502 the same. At this time, the turning rollers 502 drive the steel column to rotate slowly. The water pump 21 pumps the magnetic suspension liquid from the liquid tank 10 to the nozzle 8 through the pipeline 7 and sprays it evenly on the outer side wall of the steel column. At this time, the steel column is magnetized through the magnetization head 4. If there are no defects on the magnetized steel column, the magnetic properties of its various parts are basically the same. However, when there are defects such as cracks, pores or non-metallic inclusions, since they will cause air gaps or non-magnetic gaps on the steel column, the magnetic resistance of the defect part will be greatly increased, and the normal propagation of the magnetic force lines in the steel column will be blocked. According to the principle of magnetic continuity, at this time, the magnetic force lines of the magnetization field are forced to change the path and escape from the steel column, forming a leakage magnetic field on the surface of the steel column. Relying on the good fluidity of the liquid, the magnetic powder can relatively easily move towards the weak leakage magnetic field, and the magnetic powder is adsorbed at the position with the leakage magnetic field, thus forming a magnetic mark showing the shape of the defect, and the defect can be detected more intuitively. The steel column strength detection device for steel production of the present invention integrates the tensile detection and bending detection of steel columns, which is convenient for detecting various data of steel columns, without the need to purchase multiple machines, saving costs. When it is necessary to detect the tensile force of the steel column, the two ends of the steel column are first grasped tightly by the three-jaw chuck 203. If it is necessary to detect the tensile value at one end, the stretching device 2 on one side is opened. If it is necessary to detect the tensile values at both ends, the stretching devices 2 on both sides are opened simultaneously. The second hydraulic press 201 shortens, and the three-jaw chuck 203 slides easily on the top of the arc-shaped frame 301 through the ball 302, and the steel column is stretched. The tensile value can be detected by the tensile force sensor 202. When it is necessary to detect the bending value, first adjust the positions of the three-jaw chucks 203 at both ends until the point to be detected on the steel column is vertically below one of the bending measurement devices 6. The bending measurement device 6 is opened, and the first hydraulic press 601 extends to drive the bending claw 602 to bend the steel column. The pressure sensor 603 can detect the test data (the second hydraulic press 201, the tensile force sensor 202, the three-jaw chuck 203, the electric telescopic rod 503, the first hydraulic press 601, the pressure sensor 603, the first motor 9, the second motor 16 and the water pump 21 are all existing products).

[0033] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. A steel column strength detection device for steel production, comprising a machine housing (1), characterized in that: On both sides of the inner wall of the casing (1), a stretching device (2) and a stretching seat (3) are installed. The stretching seat (3) includes an arc frame (301), a ball (302), and a base (303). A ball (302) is rotatably connected to the top of the arc frame (301), and a base (303) is installed at the bottom of the arc frame (301). In the middle of the bottom of the casing (1), a rotating seat (5) is installed. The rotating seat (5) includes a V-shaped frame (501), a steering roller (502), and an electric telescopic rod (503). The electric telescopic rod (503) is installed at the top of the V-shaped frame (501). A groove (12) is formed at the top of the V-shaped frame (501). A steering roller (502) is installed on the inner wall of the groove (12). There are several groups of the groove (12) and the steering roller (502). A transmission rod (13) is installed at one end of the steering roller (502). A gear (14) is installed at the end of the transmission rod (13). A chain (15) is meshed with the outer wall of the gear (14). The power input end of the transmission rod (13) is connected to the power output end of a second motor (16). The second motor (16) is installed at one end of the V-shaped frame (501) through a machine base (17). On both sides of the top of the casing (1), a bending measurement device (6) is installed. A spray head (8) and a magnetization head (4) are installed on the back of the inner wall of the casing (1). The spray head (8) is connected to a liquid tank (10) through a pipeline (7) and a water pump (21).

2. The steel column strength detection device for steel production according to claim 1, wherein: A door (23) is rotatably connected to the opening of the casing (1) through a hinge (22). A handle (24) is installed on the surface of the door (23).

3. The steel column strength detection device for steel production according to claim 2, characterized in that: The door (23) includes a metal frame (2301) and tempered glass (2302). The tempered glass (2302) is installed on the inner wall of the metal frame (2301).

4. The steel column strength detection device for steel production according to claim 1, characterized in that: The bending measurement device (6) includes a first hydraulic press (601), a bending claw (602), and a pressure sensor (603). The bending claw (602) is installed at the bottom of the first hydraulic press (601). A pressure sensor (603) is installed in the middle of the bottom of the bending claw (602).

5. The steel column strength detection device for steel production according to claim 1, characterized in that: A liquid inlet (18) is formed at the top of the liquid tank (10). A liquid outlet (19) is formed at the lower part of the liquid tank (10). Sealing caps (20) are detachably connected to the outer walls of the liquid inlet (18) and the liquid outlet (19).

6. The steel column strength detection device for steel production according to claim 1, characterized in that: A stirring assembly (11) is installed inside the liquid tank (10). The power input end of the stirring assembly (11) is connected to the power output end of a first motor (9).

7. The steel column strength detection device for steel production according to claim 1, wherein: The stretching device (2) includes a second hydraulic press (201), a tension sensor (202), and a three-jaw chuck (203). The tension sensor (202) and the three-jaw chuck (203) are installed at the end of the second hydraulic press (201).

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