Seamless steel tube flaw detection device

Abstract

The seamless steel tube flaw detection device comprises a base, bearing seats are fixedly mounted on the left side and the right side of the top of the base, a vertical plate is fixedly mounted at the right end of the top of the base, a lead screw motor is fixedly mounted on the upper side of the right side face of the vertical plate, a screw rod is fixedly mounted at the left end of a rotating shaft of the lead screw motor, and a nut is in threaded connection with the side wall of the screw rod; a bearing is embedded in a vertical plate, a rotating shaft is installed on an inner ring of the bearing, a swing rod controlled through an internal thread ring is arranged on the left side of the rotating shaft, the right end of the rotating shaft is connected with a circular plate through a spring, a transverse pipe is installed on the left side face of the circular plate, and insertion teeth are integrally formed at the left end of the transverse pipe; the right side face of the vertical plate is provided with a tooth groove, the insertion teeth can be inserted into the tooth groove through the elastic effect of the spring, then the rotating shaft is fixed, the detection head of the detector is prevented from driving the steel pipe to rotate when walking on the outer side wall of the steel pipe, and the detection effect is guaranteed.

Description

Technical Field

[0001] This patent relates to the field of steel pipe detection technology, specifically a seamless steel pipe flaw detection device. Background Art

[0002] After searching, the patent with publication number CN202320541712.9 discloses a seamless steel pipe flaw detection device for performing flaw detection on steel pipes. In the above patent, the fixed steel pipe can be rotated by a rotating shaft, thereby facilitating the detector to detect different positions of the steel pipe. However, the rotating shaft lacks a fixed structure. When the detection head of the detector moves on the steel pipe, it also drives the steel pipe to rotate, reducing the detection quality. For this reason, we propose a seamless steel pipe flaw detection device. Utility Model Content

[0003] In response to the shortcomings of the existing technology, the purpose of this patent is to provide a seamless steel pipe flaw detection device. This patent embeds a bearing on the vertical plate, and a rotating shaft is installed on the inner ring of the bearing. A rocker arm controlled by an internal threaded ring is provided on the left side of the rotating shaft. A pressure head is installed on the end of the rocker arm, and the pressure head can be pressed against the inner wall of the steel pipe by rotating the internal threaded ring. The right end of the rotating shaft is connected to a circular plate through a spring, and a horizontal tube is installed on the left side of the circular plate. The left end of the horizontal tube is integrally formed with a spline. A tooth groove is provided on the right side of the vertical plate. The spline can be inserted into the tooth groove through the elastic effect of the spring, thereby fixing the rotating shaft to prevent the detection head of the detector from driving the steel pipe to rotate when it moves on the outer wall of the steel pipe, thereby ensuring the detection effect.

[0004] The technical solution adopted by this patent to solve its technical problem is: a seamless steel pipe flaw detection device, including a base, the left and right sides of the top are fixedly installed with a bearing seat, the right end of the top of the base is fixedly installed with a vertical plate, the upper side of the right side of the vertical plate is fixedly installed with a screw motor, the left end of the rotating shaft of the screw motor is fixedly installed with a screw, a nut is screwed on the side wall of the screw, an electric push rod is installed at the bottom end of the piston rod of the electric push rod is installed with a detector, and the top end of the nut is provided with a limiter;

[0005] The vertical plate is provided with a mounting hole, a bearing is fixedly mounted on the inner side wall of the mounting hole, a rotating shaft is fixedly mounted on the inner side wall of the inner ring of the bearing, a fixing ring is integrally formed on the side wall of the rotating shaft, a swing rod is hingedly connected to the upper and lower ends of the outer side wall of the fixing ring, a pressure head is fixedly mounted on the end of the swing rod, a stud is integrally formed on the left end of the rotating shaft, and an internal threaded ring is screwed on the side wall of the stud;

[0006] The right end of the rotating shaft is provided with a sliding groove, and a sliding rod is slidably installed on the inner side wall of the sliding groove. A circular plate is fixedly installed on the right end of the sliding rod. A spring is sleeved on the side wall of the sliding rod, and the two ends of the spring are respectively fixedly installed on the rotating shaft and the circular plate. A horizontal tube is integrally formed on the left side of the circular plate, and a circumferentially continuously distributed spline is integrally formed on the left side of the horizontal tube. The right side of the vertical plate is provided with circumferentially continuously distributed tooth grooves, and the spline is inserted in the tooth grooves.

[0007] Furthermore, the slide groove is a square groove, and the slide rod is a square rod.

[0008] Furthermore, a rubber layer is bonded to the pressure head.

[0009] Furthermore, the outer side wall of the internal thread ring is provided with a circular convex surface.

[0010] Furthermore, the bearing seat includes a seat body, a semicircular groove is provided on the top of the seat body, a mounting groove is provided in the semicircular groove, and a roller is connected to the mounting groove via a rotating shaft.

[0011] Furthermore, the limiting member includes a plate body and a fixed plate, the bottom of the plate body is fixedly installed on the top of the nut, the top of the plate body is provided with a groove body, the groove body is connected to the limiting wheel through a rotating shaft, the right end of the fixed plate is fixedly installed on the upper side of the left side of the vertical plate, the bottom of the fixed plate is provided with a wheel groove, and the top of the limiting wheel is rollingly installed in the wheel groove.

[0012] The beneficial effects of this patent are:

[0013] 1. This patent embeds a bearing on the vertical plate, and a rotating shaft is installed on the inner ring of the bearing. A rocker arm controlled by an internal threaded ring is provided on the left side of the rotating shaft. A pressure head is installed on the end of the rocker arm, and the pressure head can be pressed against the inner wall of the steel pipe by rotating the internal threaded ring. The right end of the rotating shaft is connected to a circular plate through a spring, and a horizontal tube is installed on the left side of the circular plate. A spline is integrally formed on the left end of the horizontal tube, and a tooth groove is provided on the right side of the vertical plate. The spline can be inserted into the tooth groove through the elastic effect of the spring, thereby fixing the rotating shaft to prevent the detection head of the detector from driving the steel pipe to rotate when it moves on the outer wall of the steel pipe, thereby ensuring the detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the patent structure.

[0015] Figure 2 It is a schematic diagram of the local structure of this patent.

[0016] Figure 3 This is a three-dimensional diagram of the carrier seat of this patent.

[0017] Explanation of the accompanying reference numerals: 1 base, 2 bearing seat, 3 vertical plate, 4 screw motor, 5 screw, 6 nut, 7 electric push rod, 8 detector, 9 bearing, 10 rotating shaft, 11 fixing ring, 12 rocker arm, 13 pressure head, 14 stud, 15 internal thread ring, 16 slide groove, 17 slide rod, 18 circular plate, 19 spring, 20 horizontal tube, 21 spline, 22 tooth groove, 23 circular convex surface, 24 seat body, 25 semicircular groove, 26 mounting groove, 27 roller, 28 plate body, 29 limiting wheel, 30 fixing plate, 31 wheel groove. DETAILED DESCRIPTION

[0018] The present invention is further described below with reference to specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this patent, those skilled in the art may make various changes or modifications to the present invention, and that these equivalent forms also fall within the scope defined by the appended claims.

[0019] See also Figure 1 、 Figure 2 and Figure 3 This is a schematic diagram of the structure of this patent, a seamless steel pipe flaw detection device, including a base 1, with bearing seats 2 fixedly installed on the left and right sides of the top, a vertical plate 3 fixedly installed on the top right end of the base 1, a screw motor 4 fixedly installed on the upper side of the right side surface of the vertical plate 3, a screw 5 fixedly installed on the left end of the rotating shaft of the screw motor 4, a nut 6 is screwed on the side wall of the screw 5, an electric push rod 7 is installed at the bottom end of the nut 6, a detector 8 is installed at the bottom end of the piston rod of the electric push rod 7, and a limiter is provided at the top end of the nut 6;

[0020] A mounting hole is provided on the vertical plate 3, and a bearing 9 is fixedly mounted on the inner side wall of the mounting hole. A rotating shaft 10 is fixedly mounted on the inner side wall of the inner ring of the bearing 9. A fixing ring 11 is integrally formed on the side wall of the rotating shaft 10. A swing rod 12 is hinged at the upper and lower ends of the outer side wall of the fixing ring 11. A pressure head 13 is fixedly mounted on the end of the swing rod 12. A stud 14 is integrally formed on the left end of the rotating shaft 10, and an internal threaded ring 15 is screwed on the side wall of the stud 14.

[0021] In the patent mentioned in the background art, the outer wall of the steel pipe is clamped by a clamping mechanism, so the clamped portion of the outer wall of the steel pipe cannot be inspected.

[0022] like Figure 2 As shown, the device can move the internal thread ring 15 to the right by rotating it, so that the outer wall of the internal thread ring 15 contacts the rocker arm 12, thereby driving the rocker arm 12 to rotate along the hinge point position, so that the pressure head 13 is pressed against the inner wall of the steel pipe.

[0023] A slide groove 16 is provided at the right end of the rotating shaft 10, and a slide rod 17 is slidably installed on the inner side wall of the slide groove 16. A circular plate 18 is fixedly installed on the right end of the slide rod 17. A spring 19 is sleeved on the side wall of the slide rod 17. The two ends of the spring 19 are respectively fixedly installed on the rotating shaft 10 and the circular plate 18. A horizontal tube 20 is integrally formed on the left side of the circular plate 18, and a circumferentially continuously distributed spline 21 is integrally formed on the left side of the horizontal tube 20. The right side of the vertical plate 3 is provided with a circumferentially continuously distributed tooth groove 22, and the spline 21 is inserted into the tooth groove 22.

[0024] Figure 1 、 2 The spring 19 is shown in an extended state. The rebound of the spring 19 causes the circular plate 18 and the transverse tube 20 to be pressed to the left, so that the tooth 21 is inserted into the tooth groove 22. At this time, the steel tube can be positioned to prevent rotation.

[0025] Specifically, the slide groove 16 is a square groove, and the slide rod 17 is a square rod.

[0026] By setting the sliding groove 16 and the sliding rod 17 to be square, it is convenient for the circular plate 18 to drive the rotating shaft 10 to rotate at the same time.

[0027] Specifically, a rubber layer is bonded to the indenter 13 .

[0028] The rubber layer on the pressure head 13 is provided to increase the friction fixing effect of the pressure head 13 on the inner wall of the steel pipe.

[0029] Specifically, the outer side wall of the internal thread ring 15 is provided with a circular convex surface 23 .

[0030] The provision of the circular convex surface 23 can enhance the contact and sliding effect between the outer wall of the internal thread ring 15 and the rocker rod 12 .

[0031] Specifically, the supporting seat 2 includes a seat body 24 , a semicircular groove 25 is provided on the top of the seat body 24 , a mounting groove 26 is provided in the semicircular groove 25 , and a roller 27 is connected to the mounting groove 26 via a rotating shaft.

[0032] Three rollers 27 are arranged in the semicircular groove 25. The outer side wall of the steel pipe can be supported by the rollers 27. When the steel pipe rotates, the arrangement of the rollers 27 facilitates the rotation of the steel pipe itself.

[0033] Specifically, the limiting member includes a plate body 28 and a fixed plate 30. The bottom of the plate body 28 is fixedly installed on the top of the nut 6. A groove body is provided on the top of the plate body 28. The groove body is connected to the limiting wheel 29 through a rotating shaft. The right end of the fixed plate 30 is fixedly installed on the upper side of the left side surface of the vertical plate 3. A wheel groove 31 is provided at the bottom of the fixed plate 30, and the top of the limiting wheel 29 is rollingly installed in the wheel groove 31.

[0034] Most traditional screw limit mechanisms slide in the slideway through a slider. This type of limit is a sliding limit with greater friction. However, the top end of the limit wheel 29 is rolled and installed in the wheel groove 31. At this time, the limit is a rolling limit, which can greatly reduce the friction effect.

[0035] Working principle: The internal thread ring 15 can be rotated to move it to the right, and the outer wall of the internal thread ring 15 contacts the rocker arm 12, which in turn drives the rocker arm 12 to rotate along the hinge point, so that the pressure head 13 is pressed tightly against the inner wall of the steel pipe. The electric push rod 7 is controlled to drive the detector 8 to move downward, so that the detection head contacts the outer wall of the steel pipe. The screw motor 4 is controlled to drive the screw 5 to rotate, and then drives the nut 6 to move to the right, and the outer wall of the steel pipe is inspected by the detector 8.

[0036] The staff can move the circular plate 18 to the right to disengage the inserting gear 21 from the tooth groove 22, and then rotate the circular plate 18, thereby driving the rotating shaft 10 and the steel pipe to rotate, thereby changing the detection position of the steel pipe.

[0037] It should be noted that the equipment structure and drawings of this patent mainly describe the principles of this patent. In terms of the technology of this design principle, the settings of the device's power mechanism, power supply system and control system are not fully described. However, on the premise that those skilled in the art understand the principles of the above patent, they can clearly know the details of its power mechanism, power supply system and control system.

[0038] This patent is achieved by embedding a bearing on the vertical plate, with a rotating shaft installed on the inner ring of the bearing, a rocker controlled by an internal threaded ring on the left side of the rotating shaft, a pressure head installed on the end of the rocker, which can be pressed against the inner wall of the steel pipe by rotating the internal threaded ring, the right end of the rotating shaft is connected to a circular plate through a spring, a horizontal tube is installed on the left side of the circular plate, and a spline is integrally formed on the left end of the horizontal tube, and a tooth groove is provided on the right side of the vertical plate. The spline can be inserted into the tooth groove through the elastic effect of the spring, thereby fixing the rotating shaft to prevent the detection head of the detector from driving the steel pipe to rotate when it moves on the outer wall of the steel pipe, thereby ensuring the detection effect.

[0039] In the description of this patent, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "two ends", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation; at the same time, unless otherwise clearly specified and limited, the terms "disposed", "installed", "connected", "fixed installation", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be internal communication between two elements or an interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in this patent according to specific circumstances.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seamless steel pipe flaw detection device, characterized by: It comprises a base (1), a bearing seat (2) is fixedly installed on both the left and right sides of the top, a vertical plate (3) is fixedly installed on the right end of the top of the base (1), a screw motor (4) is fixedly installed on the upper side of the right side surface of the vertical plate (3), a screw rod (5) is fixedly installed on the left end of the rotating shaft of the screw motor (4), a nut (6) is screwed on the side wall of the screw rod (5), an electric push rod (7) is installed on the bottom end of the piston rod of the electric push rod (7), and a detector (8) is installed on the bottom end of the piston rod of the electric push rod (7), and a limiter is provided on the top end of the nut (6); The vertical plate (3) is provided with a mounting hole, a bearing (9) is fixedly mounted on the inner side wall of the mounting hole, a rotating shaft (10) is fixedly mounted on the inner side wall of the inner ring of the bearing (9), a fixing ring (11) is integrally formed on the side wall of the rotating shaft (10), a swing rod (12) is hinged at both upper and lower ends of the outer side wall of the fixing ring (11), a pressure head (13) is fixedly mounted on the end of the swing rod (12), a stud (14) is integrally formed on the left end of the rotating shaft (10), and an internal threaded ring (15) is screwed on the side wall of the stud (14); The right end of the rotating shaft (10) is provided with a sliding groove (16), the inner side wall of the sliding groove (16) is slidably mounted with a sliding rod (17), the right end of the sliding rod (17) is fixedly mounted with a circular plate (18), the side wall of the sliding rod (17) is sleeved with a spring (19), the two ends of the spring (19) are respectively fixedly mounted on the rotating shaft (10) and the circular plate (18), the left side of the circular plate (18) is integrally formed with a transverse tube (20), the left side of the transverse tube (20) is integrally formed with a circumferentially continuously distributed slot (21), the right side of the vertical plate (3) is provided with a circumferentially continuously distributed tooth groove (22), and the slot (21) is inserted into the tooth groove (22).

2. The seamless steel pipe flaw detection device according to claim 1, characterized in that: The sliding groove (16) is a square groove, and the sliding rod (17) is a square rod.

3. The seamless steel pipe flaw detection device according to claim 1, characterized in that: A rubber layer is bonded to the pressure head (13).

4. The seamless steel pipe flaw detection device according to claim 1, characterized in that: The outer side wall of the internal thread ring (15) is provided with a circular convex surface (23).

5. The seamless steel pipe flaw detection device according to claim 1, characterized in that: The bearing seat (2) comprises a seat body (24), a semicircular groove (25) is provided on the top of the seat body (24), a mounting groove (26) is provided in the semicircular groove (25), and a roller (27) is connected to the mounting groove (26) via a rotating shaft.

6. The seamless steel pipe flaw detection device according to claim 1, characterized in that: The limiting member comprises a plate body (28) and a fixed plate (30), the bottom of the plate body (28) is fixedly mounted on the top of the nut (6), the top of the plate body (28) is provided with a groove body, the groove body is connected to the limiting wheel (29) via a rotating shaft, the right end of the fixed plate (30) is fixedly mounted on the upper side of the left side surface of the vertical plate (3), the bottom of the fixed plate (30) is provided with a wheel groove (31), and the top of the limiting wheel (29) is rollingly mounted in the wheel groove (31).

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