A flexible tracking device for wire rope detection and its application

Abstract

The present invention provides a flexible tracking device for wire rope detection and its application, which belongs to the field of safety monitoring. The flexible tracking device includes a base, a rotating shaft, a rotating seat, a universal ball bearing, a spring and a column, wherein: the rotating shaft is fixed on the base, and the rotating seat is installed in cooperation with the rotating shaft to realize the rotation of the rotating seat around the rotating shaft; one end of the universal ball bearing is used to connect with the detection device, and the other end thereof is connected with the bracket, and the end of the bracket is connected with the rotating seat; one end of the spring is connected with the bracket, and the other end thereof is connected with the column, and the end of the column is connected with the rotating seat, so that the flexible tracking device has five degrees of freedom, thereby realizing the flexible following of the wire rope. The present invention can drive the detection device to follow the displacement of the wire rope along the X-axis and the Y-axis and to rotate around the X-axis and the Y-axis, so as to keep the central axis of the detection device probe coincident with the central axis of the wire rope, so as to obtain a stable detection signal and ensure the stability of the detection.

Description

Technical Field

[0001] The invention belongs to the field of safety monitoring, and more specifically, relates to a flexible tracking device for steel wire rope detection and application thereof. Background Art

[0002] Steel wire ropes are used everywhere in daily life, especially in some heavy industrial environments. However, long-term work usually leads to corrosion, wear, loose strands, broken wires inside and outside, and even breakage, which reduces its carrying capacity and reliability. Therefore, regular inspection of steel wire ropes is essential.

[0003] Under actual working conditions, the wire rope will swing due to high-frequency alternating loads under high-speed movement, including left and right swings and front and back swings and tilts relative to the center axis. The probe needs to maintain a constant relative position with the wire rope at all times, and keep the center axis of the probe coincident with the center axis of the wire rope, in order to obtain a stable detection signal and ensure the stability of the detection. The existing inventions can only follow the swing of the wire rope back and forth, but cannot follow the tilt of the wire rope. Therefore, real-time tracking of the probe is a difficult point in wire rope detection that urgently needs to be broken through. In addition, the detection probe has a strong magnetic adsorption force on the wire rope, and manual disassembly of the probe is a huge challenge. A fully automatic opening and closing probe device is needed to replace the portable manual detection probe. Summary of the invention

[0004] In view of the defects of the prior art, the purpose of the present invention is to provide a flexible tracking device for wire rope detection and its application, aiming to solve the problem that the existing wire rope detection device cannot move with the wire rope.

[0005] To achieve the above-mentioned purpose, according to one aspect of the present invention, a flexible tracking device for wire rope detection is provided, which includes a base, a rotating shaft, a rotating seat, a universal ball bearing, a spring and a column, wherein: the rotating shaft is fixed on the base, and the rotating seat is installed in cooperation with the rotating shaft to realize the rotation of the rotating seat around the rotating shaft; one end of the universal ball bearing is used to connect with the detection device, and the other end thereof is connected to the bracket, and the end of the bracket is connected to the rotating seat; one end of the spring is connected to the bracket, and the other end thereof is connected to the column, and the end of the column is connected to the rotating seat, so that the flexible tracking device has five degrees of freedom, thereby realizing flexible following of the wire rope.

[0006] As a further preference, both ends of the spring are hingedly connected to the bracket and the column.

[0007] According to another aspect of the present invention, there is provided an online detection system for a steel wire rope, which comprises the above-mentioned flexible tracking device, a detection device and a power device, wherein:

[0008] The flexible tracking device is connected to the detection device to drive the detection device to follow the movement of the wire rope in real time;

[0009] The detection device comprises a probe base plate, a probe, a switch unit and a locking unit. The probe is fixed on the probe base plate and adopts a split structure, wherein a through hole is opened in the middle for accommodating a steel wire rope and detecting the same; the switch unit comprises two groups of switch components with the same structure and symmetrical arrangement, and the two groups of switch components are respectively connected to the left and right parts of the probe to drive the probe to open and close; the locking unit is fixed above the probe and is used to lock the probe;

[0010] The power device is fixed on the base plate, and includes a first power component and a second power component. The first power component is connected to the switch unit for driving it to control the opening and closing of the probe; the second power component is connected to the locking unit for driving it to control the locking and unlocking of the probe.

[0011] As a further preferred embodiment, each group of the switch assemblies includes a closing link, an H-shaped link, a link seat, a first pull rope and a second pull rope, one end of the closing link is connected to the probe, and the other end thereof is connected to the H-shaped link; the H-shaped link is fixed to the probe base plate through the link seat, and its two ends are respectively connected to the first pull rope and the second pull rope, so that the first pull rope and the second pull rope can be used to control the H-shaped link to drive the closing link to move, thereby driving the probe to open and close.

[0012] As further preferred, each group of the switch components also includes a swing shaft and a swing shaft seat, the swing shaft seat is fixed on the probe bracket and is used to fix the swing shaft; the swing shaft is used to be connected to the first pull rope or the second pull rope.

[0013] As a further preferred embodiment, the locking unit includes a locking buckle, a locking hook and a third pull rope, and the locking buckle is provided with a groove for cooperating with the protrusion on the locking hook to realize the locking function. At the same time, a torsion spring is provided inside the locking buckle for keeping the locking buckle and the locking hook in a locked state; the third pull rope is connected to the locking buckle, and is used to drive the locking buckle to disengage from the locking hook to realize the opening of the locking buckle.

[0014] As further preferred, the first power assembly includes a first electric push rod, a push rod connecting rod and a bottom connecting rod, the first electric push rod is connected to the bottom connecting rod through the push rod connecting rod to drive the push rod connecting rod to drive the bottom connecting rod to move, and the bottom connecting rod is respectively connected to the first pull rope and the second pull rope.

[0015] As further preferred, the first power assembly further includes two pull rope fixing seats, and the pull rope fixing seats are used to fix the first pull rope and the second pull rope respectively.

[0016] As further preferred, the second power assembly includes a second electric push rod and a pull rope fixing seat, the second electric push rod is connected to the third pull rope, and the third pull rope is fixed by the pull rope fixing seat.

[0017] As a further preference, wear-resistant sleeves are provided at both ends of the probe opening to prevent the steel wire rope from wearing the probe.

[0018] In general, the above technical solution conceived by the present invention has the following beneficial effects compared with the prior art:

[0019] 1. The flexible tracking device for wire rope detection provided by the present invention can provide rotational freedom by providing a rotating seat and a universal bearing rotating around a rotating axis. Meanwhile, the bracket, the tension spring and the rotating seat form a deformable triangular structure, which also provides rotational freedom. Thus, the flexible tracking device has five degrees of freedom, and can drive the detection device to follow the wire rope to move along the X-axis and the Y-axis and rotate around the X-axis and the Y-axis, thereby keeping the central axis of the detection device probe coincident with the central axis of the wire rope, so as to obtain a stable detection signal and ensure the stability of the detection;

[0020] 2. At the same time, the present invention also provides an online detection system for steel wire ropes, which uses a flexible tracking device to realize the movement of the probe with the steel wire rope, ensuring that the central axis of the probe coincides with the central axis of the steel wire rope, and uses a power device to drive the probe to open and close, which can effectively resist the strong magnetic adhesion of the steel wire rope to the probe, and separates the switch unit from the power device, and fixes the power device on the bottom plate, which can effectively reduce the weight of the detection device and increase its flexibility;

[0021] 3. In addition, the present invention also optimizes the structure of the switch assembly and the lock unit, which can ensure the symmetric synchronization of the opening and closing of the left and right parts of the probe, and can effectively improve the safety and stability of the online detection system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of a flexible tracking device for wire rope detection provided by an embodiment of the present invention;

[0023] Figure 2 It is a probe assembly diagram of an online detection system for a steel wire rope provided by an embodiment of the present invention;

[0024] Figure 3 It is a bottom assembly diagram of an online detection system for steel wire ropes provided by an embodiment of the present invention;

[0025] Figure 4 This is a diagram of the probe opening state in the online detection system for the steel wire rope provided by an embodiment of the present invention;

[0026] Figure 5 It is a structural schematic diagram of a locking unit in an online detection system for a steel wire rope provided in an embodiment of the present invention;

[0027] Figure 6 is a diagram of the degrees of freedom of the steel wire rope in an embodiment of the present invention;

[0028] Figure 7 is the positional relationship of the wire rope relative to the probe in the embodiment of the present invention, where (a) is the ideal position, (b) is the relative displacement, and (c) is the relative inclination;

[0029] Figure 8 It is a schematic diagram of the mechanism movement of the probe in the online detection system of the wire rope provided by the embodiment of the present invention;

[0030] Fig. 9 The present invention provides a simplified diagram of the mechanism movement of a switch assembly in an online detection system for a steel wire rope provided in an embodiment of the present invention.

[0031] Throughout the drawings, the same reference numerals are used to denote the same elements or structures, wherein:

[0032] 1-probe, 2-closing connecting rod, 3-H-type connecting rod, 4-first pull rope, 5-connecting rod seat, 6-second pull rope, 7-swing shaft, 8-swing shaft seat, 9-hinge, 10-rotating shaft, 11-probe bracket, 12-probe bottom plate, 13-lock buckle, 14-lock hook, 15-third pull rope, 16-wear-resistant sleeve, 17-pull rope fixing seat, 18-bottom connecting rod, 19-push rod connecting rod, 20-first electric push rod, 21-second electric push rod, 22-universal ball bearing, 23-bracket, 24-spring, 25-column, 26-rotating seat, 27-rotating shaft, 28-base, 29-bottom plate. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] like Figure 1As shown, according to one aspect of the present invention, a flexible tracking device for wire rope detection is provided, the flexible tracking device includes a base 28, a rotating shaft 27, a rotating seat 26, a universal ball bearing 22, a spring 24 and a column 25, wherein: the rotating shaft 27 is fixed on the base 28, and the rotating seat 26 is installed in cooperation with the rotating shaft 27 to realize the rotation of the rotating seat 26 around the rotating shaft 27, thereby increasing the rotational freedom of the rotating shaft 27; one end of the universal ball bearing 22 is used to connect with the detection device, and the other end thereof is connected to the bracket 23, and the end of the bracket 23 is connected to the rotating seat 26, thereby providing three rotational degrees of freedom for the detection device; one end of the spring 24 is hinged to the bracket 23, and the other end thereof is hinged to the column 25, and the end of the column 25 is connected to the rotating seat 26, the bracket 23, the spring 24 and the rotating seat 26 form a deformable triangular structure, thereby increasing the rotational freedom of the bracket 23, and further making the flexible tracking device have five degrees of freedom, thereby realizing the flexible following of the wire rope. As shown Figure 6 , 7 As shown, the upward direction of the wire rope is taken as the Z axis, the normal direction of the probe base plate 12 is taken as the X axis, the Y axis is determined according to the right-hand rule, and an XYZ coordinate system is established. The displacement freedom of the wire rope along the X axis and the Y axis and the rotation freedom around the X axis and the Y axis need to be followed, while the displacement freedom of the wire rope along the Z axis and the rotation freedom around the Z axis are irrelevant degrees of freedom and do not need to be followed. Therefore, the flexible tracking device provided by the present invention can follow the displacement of the wire rope along the X axis and the Y axis and the rotation around the X axis and the Y axis.

[0035] like Figure 2-4 As shown, according to another aspect of the present invention, there is provided an online detection system for a steel wire rope, which comprises the above-mentioned flexible tracking device, a detection device and a power device, wherein:

[0036] The flexible tracking device is connected to the detection device to drive the detection device to follow the movement of the wire rope in real time. The flexible tracking device increases the degree of freedom of rotation around the base, the degree of freedom of the universal ball bearing and the degree of freedom of the spring, so that the detection device can move and tilt relative to the wire rope;

[0037] The detection device includes a probe base plate 12, a probe 1, a switch unit and a locking unit. The probe 1 is fixed on the probe base plate 12 through a probe bracket 11 and adopts a split structure. The left and right parts of the probe are connected by a hinge 9 and a rotating shaft 10, so that it can be rotated around the rotating shaft 10 to open and close, and a through hole is opened in the middle to accommodate a steel wire rope and detect it; the switch unit includes two groups of switch components with the same structure and symmetrically arranged, and the two groups of switch components are respectively connected to the left and right parts of the probe 1 to drive the probe 1 to open and close; the locking unit is fixed above the probe 1, and is used to lock the probe 1 to ensure that the probe is closed and does not bounce;

[0038] The power device is fixed on the base plate 29, and includes a first power component and a second power component. The first power component is connected to the switch unit for driving it to control the opening and closing of the probe 1; the second power component is connected to the locking unit for driving it to control the locking and unlocking of the probe 1. By separating the power device from the detection device and fixing the power device on the base plate 29, the weight of the probe 1 can be effectively reduced and the flexibility of the probe 1 can be increased.

[0039] Further, if Figure 8 , 9 As shown, each switch assembly includes a closing link 2, an H-type link 3, a link seat 5, a first pull rope 4, a second pull rope 6, a swing shaft 7 and a swing shaft seat 8. One end of the closing link 2 is connected to the probe 1, and the other end thereof is connected to the H-type link 3. The H-type link 3 is fixed to the probe bottom plate 12 through the link seat 5, and its two ends are respectively connected to the first pull rope 4 and the second pull rope 6, so that the H-type link 3 is used to control the movement of the closing link 2, thereby driving the probe 1 to open and close, wherein when the first pull rope 4 is tightened downward, the probe 1 is driven to open, and when the second pull rope 6 is tightened downward, the probe is driven to close; the swing shaft seat 8 is fixed to the probe bracket 11, and is used to fix the swing shaft 7, and the swing shaft 7 is used to be connected to the first pull rope 4 or the second pull rope 6, so as to reduce the wear of the first pull rope 4 and the second pull rope 6.

[0040] Further, if Figure 5 As shown, the lock unit includes a lock buckle 13, a lock hook 14 and a third pull rope 15. The lock buckle 13 is provided with a groove for cooperating with the protrusion on the lock hook 14 to realize the locking function. At the same time, a torsion spring is provided inside the lock buckle 13 to keep the lock buckle 13 and the lock hook 14 in a locked state; the third pull rope 15 is connected to the lock buckle 13, and is used to drive the lock buckle 13 to disengage from the lock hook 14 to realize the unlocking of the lock buckle 13.

[0041] Furthermore, the first power assembly includes a first electric push rod 20, a push rod connecting rod 19, a bottom connecting rod 18 and two pull rope fixing seats 17. The first electric push rod 20 is connected to the bottom connecting rod 18 through the push rod connecting rod 19 to drive the push rod connecting rod 19 to drive the bottom connecting rod 18 to move. The bottom connecting rod 18 is respectively connected to the first pull rope 4 and the second pull rope 6, and the first pull rope 4 and the second pull rope 6 are fixed by the pull rope fixing seat 17. The first pull rope 4 or the second pull rope 6 is tightened by the bottom connecting rod 18. The second power assembly includes a second electric push rod 21 and a pull rope fixing seat 17. The second electric push rod 21 is connected to the third pull rope 15, and the third pull rope 15 is fixed by the pull rope fixing seat 17. When working, the second electric push rod 21 retracts, pulls the third pull rope 15 and drives the lock buckle 13, the lock buckle 13 is disengaged from the lock hook 14, and the lock buckle is opened to unlock; the second electric push rod 21 extends, the lock buckle 13 loses the pulling force of the third pull rope 15, and relies on the action of the internal torsion spring to return to the locked state.

[0042] Furthermore, replaceable wear-resistant sleeves 16 are provided at both ends of the opening of the probe 1, which can reduce the friction between the probe 1 and the wire rope and have good interchangeability.

[0043] The working process of the online detection system for steel wire ropes provided by the present invention is further described below.

[0044] First, retract the second electric push rod 21, pull the third pull rope 15 and drive the lock 13 to open the lock 13 of the probe 1, then push out the first electric push rod 20, tighten the first pull rope 4 to open the probe 1; then, move the entire online detection system to the detection position, and pass the wire rope through the middle of the probe; finally, retract the first electric push rod 20, tighten the second pull rope 6 to close the probe 1, extend the second electric push rod 21, loosen the third pull rope 15 to lock the lock 13, and the probe 1 is adjusted by the flexible tracking device so that the wire rope is in the center of the probe 1.

[0045] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An online detection system for a steel wire rope, characterized in that: The online detection system includes a flexible tracking device, a detection device and a power device, wherein: The flexible tracking device comprises a base (28), a rotating shaft (27), a rotating seat (26), a universal ball bearing (22), a spring (24) and a column (25), wherein: the rotating shaft (27) is fixed on the base (28), and the rotating seat (26) is installed in cooperation with the rotating shaft (27) to realize the rotation of the rotating seat (26) around the rotating shaft (27); one end of the universal ball bearing (22) is used to connect with the detection device, and the other end thereof is connected with the bracket (23), and the end of the bracket (23) is connected with the rotating seat (26); one end of the spring (24) is connected with the bracket (23), and the other end thereof is connected with the column (25), and the end of the column (25) is connected with the rotating seat (26), so that the flexible tracking device has five degrees of freedom, thereby realizing the flexible following of the wire rope, and the flexible tracking device is connected with the detection device to drive the detection device to follow the movement of the wire rope in real time; The detection device comprises a probe base plate (12), a probe (1), a switch unit and a lock unit. The probe (1) is fixed on the probe base plate (12) and adopts a split structure, wherein a through hole is provided in the middle for accommodating a steel wire rope and detecting the same. The switch unit comprises two groups of switch components with the same structure and symmetrically arranged. The two groups of switch components are respectively connected to the left and right parts of the probe (1) to drive the probe (1) to open and close. Each group of switch components comprises a closing connecting rod (2), an H-shaped connecting rod (3), a connecting rod seat (5), a first pull rope (4) and a second pull rope (5). and a second pull rope (6), one end of the closing link (2) is connected to the probe (1), and the other end is connected to the H-shaped link (3); the H-shaped link (3) is fixed to the probe bottom plate (12) through a link seat (5), and its two ends are respectively connected to the first pull rope (4) and the second pull rope (6), so that the H-shaped link (3) is controlled by the first pull rope (4) and the second pull rope (6) to drive the closing link (2) to move, thereby driving the probe (1) to open and close; the locking unit is fixed above the probe (1) and is used to lock the probe (1); The power device is fixed on the base plate (29), and comprises a first power assembly and a second power assembly, wherein the first power assembly is connected to the switch unit and is used to drive the switch unit to control the opening and closing of the probe (1); and the second power assembly is connected to the locking unit and is used to drive the lock unit to control the locking and unlocking of the probe (1).

2. The online detection system for steel wire rope according to claim 1, characterized in that: The two ends of the spring (24) are hingedly connected to the bracket (23) and the column (25).

3. The online detection system for steel wire rope according to claim 1, characterized in that: Each set of the switch components further comprises a swing shaft (7) and a swing shaft seat (8); the swing shaft seat (8) is fixed on the probe bracket (11) and is used to fix the swing shaft (7); the swing shaft (7) is used to be connected to the first pull rope (4) or the second pull rope (6).

4. The online detection system for steel wire rope according to claim 1, characterized in that: The lock buckle unit comprises a lock buckle (13), a lock hook (14) and a third pull rope (15); the lock buckle (13) is provided with a groove for cooperating with a protrusion on the lock hook (14) to realize a locking function; at the same time, a torsion spring is provided inside the lock buckle (13) for keeping the lock buckle (13) and the lock hook (14) in a locked state; the third pull rope (15) is connected to the lock buckle (13) and is used to drive the lock buckle (13) and the lock hook (14) to disengage, thereby realizing the opening of the lock buckle (13).

5. The online detection system for steel wire rope according to claim 1, characterized in that: The first power assembly comprises a first electric push rod (20), a push rod connecting rod (19) and a bottom connecting rod (18); the first electric push rod (20) is connected to the bottom connecting rod (18) via the push rod connecting rod (19) so as to drive the push rod connecting rod (19) to drive the bottom connecting rod (18) to move; the bottom connecting rod (18) is respectively connected to the first pull rope (4) and the second pull rope (6).

6. The online detection system for steel wire rope according to claim 5, characterized in that: The first power assembly further comprises two pull rope fixing seats (17), wherein the pull rope fixing seats (17) are used to fix the first pull rope (4) and the second pull rope (6), respectively.

7. The online detection system for steel wire rope according to claim 1, characterized in that: The second power assembly comprises a second electric push rod (21) and a pull rope fixing seat (17); the second electric push rod (21) is connected to a third pull rope (15), and the third pull rope (15) is fixed by means of the pull rope fixing seat (17).

8. The online detection system for steel wire rope according to any one of claims 1 to 7, characterized in that: Wear-resistant sleeves (16) are provided at both ends of the opening of the probe (1) to prevent the steel wire rope from causing wear on the probe (1).

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