A wire rope broken wire inspection tool

Abstract

This utility model discloses a wire rope broken wire inspection tool. The two ends of the swing arms have clamping ends and operating ends. The middle parts of the two swing arms are rotatably connected to both ends of the swing arm limiting plate. Two torque components are respectively connected to the rotatable connection points between the two swing arms and the swing arm limiting plate, driving the two clamping ends to approach each other until they abut against the ends of the swing arms and the swing arm limiting plate. The two clamping components are respectively connected to the clamping ends. Under the torsional force of the torque components, the two clamping components approach each other to clamp the wire rope. Under the force applied by the operator to the operating end, the two clamping components move away from each other to remove themselves from the wire rope. This utility model develops a wire rope broken wire inspection tool that can quickly inspect for abnormalities such as broken wire ropes with a low false negative rate.

Description

Technical Field

[0001] This utility model belongs to the field of inspection tool technology, specifically, it relates to a tool for inspecting broken wires in steel wire ropes. Background Technology

[0002] Wire rope is a common flexible mechanical structure widely used in various lifting equipment at docks. A typical wire rope is made of multiple steel wires twisted together according to a certain rule. After prolonged use, some of these wires will break, resulting in broken wires. When broken wires appear, the load-bearing capacity of the wire rope decreases. Therefore, timely detection, assessment, and replacement of broken wires are crucial to ensuring the safe operation of dock lifting equipment. Inspecting for broken wires is a common maintenance task for dock lifting equipment. The traditional inspection method involves an inspector holding a thin, hard, ordinary scraper and slowly running the blade across the surface of the wire rope (usually while the wire rope is moving and the inspector's position is fixed). If a broken wire is encountered, the blade will encounter significant resistance, at which point the inspector can stop and carefully inspect the broken wire. This traditional method of wire rope inspection has proven to be relatively reliable over time, but it also has some shortcomings. Firstly, to ensure inspection efficiency, the scraper is generally used to inspect the back of the wire rope, while the front is inspected visually by the inspector. Because wire ropes operate on equipment for extended periods, their surfaces accumulate waste oil, powder, and other impurities. Furthermore, since wire ropes are composed of multiple strands of twisted steel wire, there are numerous details to inspect. Prolonged observation of a constantly moving wire rope can lead to fatigue and loss of concentration for inspectors. Secondly, the "blade" of ordinary scrapers is typically straight or slightly curved, resulting in a small contact area with the wire rope surface. A single pass of the "blade" covers a limited area, requiring repeated passes to ensure effective inspection.

[0003] Therefore, developing a wire rope breakage inspection tool that can quickly detect abnormalities such as wire rope breakage with a low false negative rate is an urgent technical problem to be solved. Utility Model Content

[0004] The purpose of this utility model is to provide a wire rope broken wire inspection tool that can quickly detect abnormalities such as broken wire ropes with a low false negative rate.

[0005] To achieve the above-mentioned objectives, the present invention employs the following technical solution: This utility model proposes a tool for inspecting broken wires in steel wire ropes, comprising: Swing arm limit plate; Two swing arms, each having a clamping end and an operating end at both ends, with the middle portions of the two swing arms rotatably connected to both ends of the swing arm limiting plate. Two torque components are respectively connected to the rotational connection between the two swing arms and the swing arm limiting plate, so as to drive the two clamping ends to approach each other until the ends of the swing arms and the swing arm limiting plate abut against each other. Two clamping parts, each of which is connected to the clamping end; When the swing arm is subjected to the torsional force of the torsion part, the two clamping parts move closer together to clamp onto the wire rope; when the operator applies force to the operating end, the two clamping parts move further apart to move off the wire rope.

[0006] In some embodiments of this application, two adjusting parts are further included, which are rotatably connected to the two swing arms respectively. The adjusting parts are configured to rotate in the forward direction to drive the torque part to increase the torque force, and the adjusting parts are configured to rotate in the reverse direction to decrease the torque force of the torque part.

[0007] In some embodiments of this application, the clamping part is provided with a contour hole. When the two clamping parts are engaged under the torsional force of the torque part, the two contour holes form a through passage. The steel wire rope passes through the through passage, and the contour hole is clamped on the steel wire rope.

[0008] In some embodiments of this application, the clamping part is detachably connected to the swing arm.

[0009] In some embodiments of this application, a disengaging portion and a sliding portion are also included; The middle part of the swing arm limiting plate is slidably connected to the sliding part, and the sliding part extends along the direction of the through passage; when the clamping part is subjected to external force, the swing arm limiting plate can slide along the sliding part; The number of the disengagement parts is two, and the two disengagement parts are respectively connected to the two ends of the sliding part in the sliding direction. The disengagement parts are configured to drive the clamping part away from the wire rope when the clamping part moves to the disengagement part.

[0010] In some embodiments of this application, the detachment portion includes: An extension component is provided that extends along the direction of the swing arm limiting plate; Two disengaged execution components; The two disengagement actuators are respectively located at both ends of the extension member, and the two disengagement actuators are used to push the swing arms on both sides away from each other.

[0011] In some embodiments of this application, the disengagement actuator has a plurality of guide portions and a plurality of locking portions, and the plurality of guide portions and the plurality of locking portions are arranged at intervals from the direction close to the swing arm to the direction far away from the swing arm.

[0012] In some embodiments of this application, the guide portion is an arc-shaped protrusion, and the locking portion is a recess.

[0013] In some embodiments of this application, the sliding portion includes: A cylindrical structure having a sliding cavity inside, and a sliding groove being formed on the surface of the cylindrical structure, the sliding groove communicating with the sliding cavity; A slider extends from the sliding groove and connects to the middle of the swing arm limiting plate; Two elastic components, one end of each elastic component is connected to both ends of the slider, and the other end of each elastic component is connected to both ends of the sliding cavity; The slider and the two elastic components are installed inside the sliding cavity.

[0014] In some embodiments of this application, the disengagement actuation component extends obliquely at the end of the extension component in a direction from near the swing arm to away from the swing arm.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are: By rotatably connecting two swing arms to the swing arm limit plate, and connecting the clamping end of the swing arm to the clamping part, the torque part drives the clamping parts to move closer to each other to clamp onto the wire rope, so that the two clamping parts can fit more fully onto the wire rope, and the wire rope is circumferentially fitted with the clamping parts. During the inspection process, the circumferential direction of the wire rope can be inspected at one time, the inspection speed is fast, and the missed inspection rate is reduced.

[0016] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is one of the overall structural schematic diagrams of an embodiment of a wire rope broken wire inspection tool proposed in this utility model; Figure 2 This is a top view of an embodiment of a wire rope breakage inspection tool proposed in this utility model; Figure 3 This is the second schematic diagram of the overall structure of an embodiment of the wire rope breakage inspection tool proposed in this utility model; Figure 4 yes Figure 3 A partial schematic diagram at point A in the middle; Figure 5 This is a cross-sectional view of one embodiment of a wire rope breakage inspection tool proposed in this utility model; Figure 6 yes Figure 5 A partial schematic diagram at point B in the middle; Figure 7 This is a schematic diagram of the detachment and sliding parts of an embodiment of a wire rope breakage inspection tool proposed in this utility model. In the picture, 100. Swing arm limit plate; 200. Swing arm; 210. Clamping end; 220. Operating terminal; 300. Torque section; 400. Clamping part; 410. Contouring hole; 420. Through-passage; 500. Adjustment section; 510. Anti-slip part; 600. Separation section; 610. Extension components; 620. Disengage from the actuator; 621. Guiding section; 622. Jammed / Stuck section; 700. Sliding part; 710. Columnar structure; 711. Sliding cavity; 712. Sliding groove; 720. Slider; 730. Elastic components. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, direct connections, or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] The following disclosure provides many different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0025] In some embodiments of this application, a wire rope broken wire inspection tool is provided, which is moved along the wire rope to check for problems such as broken wires in the wire rope.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, the wire rope broken wire inspection tool includes a swing arm limit plate 100, two swing arms 200, two torque parts 300 and two clamping parts 400.

[0027] The two ends of the swing arm 200 are respectively formed with a clamping end 210 and an operating end 220. The middle part of the swing arm 200 is rotatably connected to both ends of the swing arm limiting plate 100.

[0028] Two clamping parts 400 are respectively connected to two clamping ends 210.

[0029] like Figure 4 , Figure 5 As shown, two torque units 300 are respectively connected to the rotational connection points of the two swing arms 200 and the swing arm limiting plate 100. The torque units 300 are used to drive the clamping ends 210 of the swing arms 200 to move closer to each other so that the side of the swing arm 200 near the clamping end 210 abuts against the swing arm limiting plate 100.

[0030] With the swing arm 200 abutting against the swing arm limit plate 100 on the side near the clamping end 210, the clamping parts 400 connected to the two clamping ends 210 are brought closer together to clamp the wire rope.

[0031] The operator holds the two swing arms 200 at their operating ends 220 and applies force to them, causing the two operating ends 220 to move closer together. At the same time, this causes the two clamping ends 210 to move further apart, so that the two clamping parts 400 move further apart and are removed from the wire rope.

[0032] In some embodiments of this application, such as Figure 6 , Figure 7 As shown, it also includes two adjustment parts 500. The two adjustment parts 500 are rotatably connected to the swing arm 200.

[0033] Specifically, a threaded hole is formed on the rocker arm 200, and an external thread is formed on the adjusting part 500. The adjusting part 500 is threadedly connected to the threaded hole on the rocker arm 200 through the external thread.

[0034] One end of the adjusting part 500 passes through the threaded hole through the rocker arm 200 to a position near the torque part 300 and is connected to the clamping part 400. By rotating the adjusting part 500, a varying force is applied to the torque part 300.

[0035] Specifically, the torque unit 300 can be a torsion spring. One end of the adjusting unit 500 passes through a threaded hole and connects to one end of the torsion spring. An anti-slip part 510 is provided on the other end of the adjusting unit 500. The operator holds the anti-slip part 510 to rotate the adjusting unit 500.

[0036] The adjusting unit 500 is configured to rotate in the forward direction to drive the torque unit 300 to increase the torque force. The adjusting unit 500 is configured to rotate in the reverse direction to drive the torque unit 300 to decrease the torque force.

[0037] As wire ropes operate on equipment, their surface roughness varies due to factors such as total operating time, working environment, operating method, and rope material. During inspection with a standard scraper, we observed that if the inspector applies significant pressure, the scraper resistance may suddenly increase even if no wires are broken, resulting in a false positive. Conversely, applying less pressure may cause missed wire breaks, leading to a missed detection. To address this, the aforementioned adjustment unit 500 adjusts the torque applied by the torque unit 300, thereby adjusting the clamping force of the two clamping units 400 on the wire rope to accommodate wire ropes with varying surface roughness.

[0038] In some embodiments of this application, the clamping part 400 is provided with a contour hole 410. When the two clamping parts 400 are engaged under the torsional force of the torque part 300, the two contour holes 410 form a through passage 420. The contour hole 410 is clamped onto the wire rope.

[0039] Specifically, the profile hole 410 can be semi-circular or semi-elliptical. It allows the wire rope to be clamped within for a fully enclosed inspection.

[0040] The specific shape of the profile hole 410 is not limited. The profile hole 410 is designed according to the profile of the wire rope.

[0041] However, since the profile hole 410 of the clamping part 400 needs to be inspected against the wire rope chart, the size of the profile hole 410 directly determines the size of the wire rope that can be inspected. In lifting equipment, there may be multiple wire ropes of different diameters that need to be inspected, so the clamping part 400 on the wire rope breakage inspection tool of this application also needs to be designed to be replaceable.

[0042] Therefore, the clamping part 400 and the swing arm 200 are detachably connected. The clamping part 400 can be replaced according to the size of the wire rope.

[0043] Specifically, the clamping part 400 can be a cutting blade with a contour hole 410.

[0044] Select the appropriate blade to inspect the wire rope, depending on the size of the profile hole 410 on the blade.

[0045] Both the blade and the swing arm 200 have connecting holes. A pin passes through each connecting hole, and a through hole is provided in each pin to allow a thin wire or similar component to pass through, preventing the pin from falling out of the connecting holes. When it is necessary to remove the pin, simply remove the thin wire from the connecting holes to pull it out and replace the blade.

[0046] In this application, the clamping part 400 can be replaced to accommodate wire ropes of different sizes, and other parts can be used interchangeably, which has the advantages of being lightweight and low cost.

[0047] In some embodiments of this application, such as Figure 1 , Figure 2 As shown, it also includes a disengagement part 600 and a sliding part 700. The middle part of the swing arm limiting plate 100 is slidably connected to the sliding part 700.

[0048] The sliding part 700 extends along the extension direction of the through passage 420. When the two clamping parts 400 become stuck during movement along the wire rope, the swing arm limiting plate 100 slides along the sliding part 700. That is, the sliding direction of the swing arm limiting plate 100 along the sliding part 700 is the same as the direction of relative movement of the wire rope along the through passage 420.

[0049] There are two disengagement parts 600. The two disengagement parts 600 are respectively connected to the two ends of the sliding part 700 in the sliding direction. When the swing arm limiting plate 100 slides along the sliding part 700 in two directions, it can support the two swing arms 200 and move them away from each other.

[0050] In some embodiments of this application, the disengagement part 600 includes an extension part 610 and two disengagement execution parts 620.

[0051] Two disengagement actuators 620 are respectively connected to both ends of the extension member 610. The extension member 610 extends along the direction of the swing arm limiting plate 100.

[0052] Two disengagement actuators 620 are respectively connected to the two ends of the swing arm limit plate 100, that is, the two disengagement actuators 620 correspond to the two swing arms 200 respectively, and are used to push the two swing arms 200 apart so that the two swing arms 200 are far apart.

[0053] The release part 600 is configured such that when the clamping part 400 moves to the release part 600 position, the release part 600 drives the clamping part 400 away from the wire rope. This enables the wire rope breakage inspection tool to automatically detach from the wire rope when an abnormality is detected.

[0054] The disengagement actuator 620 has a plurality of guide portions 621 and a plurality of locking portions 622. The plurality of guide portions 621 and the plurality of locking portions 622 are arranged at intervals from the direction near the swing arm 200 to the direction away from the swing arm 200.

[0055] Therefore, when the actuator 620 just comes into contact with the swing arm 200, the swing arm 200 moves along the guide portion 621. As the two swing arms 200 move along the two guide portions 621, the two swing arms 200 move away from each other, thereby causing the two clamping portions 400 to move away from each other and detach from the wire rope. Then, while continuing to move, the swing arm 200 is locked into the locking portion 622, which limits the swing arm 200 and prevents the clamping portion 400 from clamping onto the wire rope again.

[0056] If the clamping part 400 continues to move along the wire rope, the relative movement of the swing arm 200 with the guide part 621 and the locking part 622 repeats the above process.

[0057] Specifically, the guide portion 621 can be an arc-shaped protrusion. The locking portion 622 can be a recess.

[0058] Even when the swing arm 200 is stuck in the recessed part, the two clamping parts 400 can still remain detached from the wire rope.

[0059] The disengaged actuator 620 extends obliquely from the direction near the swing arm 200 to the direction away from the swing arm 200 on the end of the extension member 610.

[0060] That is, as the two swing arms 200 move along the disengagement actuator 620, they gradually move away from each other.

[0061] In some embodiments of this application, the sliding part 700 includes a cylindrical structure 710, a slider 720, and two elastic components 730.

[0062] A sliding cavity 711 is formed within the cylindrical structure 710.

[0063] The surface of the columnar structure 710 is provided with a sliding groove 712.

[0064] The sliding cavity 711 is connected to the sliding groove 712.

[0065] The slider 720 is slidably connected inside the sliding cavity 711 and can move along the sliding cavity 711.

[0066] One end of each of the two elastic components 730 is connected to one side of the slider 720.

[0067] The other ends of the two elastic components 730 are connected to the two ends of the sliding cavity 711.

[0068] As a result, during the movement of the slider 720 along the sliding cavity 711, the elastic component 730 on one side is compressed and the elastic component 730 on the other side is stretched.

[0069] This allows the wire rope breakage inspection tool to automatically detach from the wire rope in the event of an abnormality.

[0070] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0071] Whenever possible, the various aspects and features described and shown in the specification can be applied individually, and these individual aspects can serve as the subject of a divisional application.

[0072] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A broken wire inspection tool for a steel wire rope, characterized by, include: Swing arm limit plate; Two swing arms, each having a clamping end and an operating end at both ends, with the middle portions of the two swing arms rotatably connected to both ends of the swing arm limiting plate. Two torque components are respectively connected to the rotational connection between the two swing arms and the swing arm limiting plate, so as to drive the two clamping ends to approach each other until the ends of the swing arms and the swing arm limiting plate abut against each other. Two clamping parts, each of which is connected to the clamping end; Wherein, under the torsional force of the torsion part, the two clamping parts move closer to each other to clamp onto the wire rope. When the operator applies force to the operating end, the two clamping parts move away from each other to move off the wire rope.

2. The wire rope broken wire inspection tool according to claim 1, characterized in that, It also includes two adjustment parts, which are rotatably connected to the two swing arms respectively. The adjustment parts are configured to rotate in the forward direction to drive the torque part to increase the torque force, and the adjustment parts are configured to rotate in the reverse direction to decrease the torque force of the torque part.

3. The broken wire inspection tool of claim 1, wherein, The clamping part is provided with a contour hole. When the two clamping parts are engaged under the torsional force of the torque part, the two contour holes form a through passage. The steel wire rope passes through the through passage and the contour hole is clamped on the steel wire rope.

4. The wire rope broken wire inspection tool according to claim 1, characterized in that, The clamping part is detachably connected to the swing arm.

5. The wire rope broken wire inspection tool according to claim 3, characterized in that... It also includes a disengagement part and a sliding part; The middle part of the swing arm limiting plate is slidably connected to the sliding part, and the sliding part extends along the direction of the through passage; when the clamping part is subjected to external force, the swing arm limiting plate can slide along the sliding part; The number of the disengagement parts is two, and the two disengagement parts are respectively connected to the two ends of the sliding part in the sliding direction. The disengagement parts are configured to drive the clamping part away from the wire rope when the clamping part moves to the disengagement part.

6. The broken wire inspection tool of claim 5, wherein, The disengagement portion includes: An extension component is provided that extends along the direction of the swing arm limiting plate; Two disengaged execution components; The two disengagement actuators are respectively located at both ends of the extension member, and the two disengagement actuators are used to push the swing arms on both sides away from each other.

7. The broken wire inspection tool of claim 6, wherein, The disengagement actuator has multiple guide portions and multiple locking portions, which are arranged at intervals from the direction closest to the swing arm to the direction furthest from the swing arm.

8. The broken wire inspection tool of claim 7, wherein, The guide portion is an arc-shaped protrusion, and the locking portion is a recess.

9. The wire rope broken wire inspection tool according to claim 5, characterized in that, The sliding part includes: A cylindrical structure having a sliding cavity inside, and a sliding groove being formed on the surface of the cylindrical structure, the sliding groove communicating with the sliding cavity; A slider extends from the sliding groove and connects to the middle of the swing arm limiting plate; Two elastic components, one end of each elastic component is connected to both ends of the slider, and the other end of each elastic component is connected to both ends of the sliding cavity; The slider and the two elastic components are installed inside the sliding cavity.

10. The wire rope broken wire inspection tool according to claim 6, characterized in that, The disengagement actuation component extends obliquely from the through passage to the end of the extension component along a direction from near the swing arm to away from the swing arm.

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