Portable wear detection fixture for hoist steel wire rope

Abstract

The utility model discloses a hoist steel wire rope portable wear detection fixture which comprises three clamping plates, the three clamping plates are arranged and distributed side by side, adjacent clamping plates are connected through two first hinges distributed up and down to form a foldable structure, the first hinge on one side is connected through a bolt in a penetrating mode, and the first hinge on the other side is connected through a bolt in a penetrating mode. The top and the bottom of the inner side face of each clamping plate are each provided with a horizontally-arranged spring arc piece, and the two ends of each spring arc piece are connected with limiting blocks through second hinges. A first sliding groove allowing the limiting block to slide and a second sliding groove allowing the second hinge to penetrate through are formed in the clamping plate, and the first sliding groove and the second sliding groove communicate with each other and extend horizontally; at least two detection sensors are embedded in each clamping plate, and detection heads of the detection sensors penetrate out of the clamping plates and face the steel wire rope. The folding device comprises the three clamping plates which are vertically distributed and connected through the first hinges to form a foldable structure, so that the folding device can be folded according to needs, and carrying and storage are greatly facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hoist detection, in particular to a portable wear detection fixture for hoist steel wire rope. BACKGROUND

[0002] As a key component of the hoist, the safety and reliability of the steel wire rope directly affect the operation state of the entire system. However, during long-term use, the steel wire rope may degrade in performance due to factors such as wear and corrosion, and in severe cases may even cause safety accidents. Therefore, regular wear detection of the steel wire rope is crucial. Traditional steel wire rope wear detection tools are often large in size and complex in design, which not only limits their application in narrow spaces, but also makes them inconvenient to carry to the site for real-time detection. For technical personnel who need to frequently move the operation site or work in special environments such as high altitudes, the existing detection equipment is heavy and inconvenient to carry, greatly increasing the difficulty and time cost of work. SUMMARY

[0003] The utility model aims at providing a portable wear detection fixture for hoist steel wire rope, which can ensure detection accuracy and be conveniently carried, solving the problems in the prior art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A portable wear detection fixture for hoist steel wire rope includes a clamping plate, the clamping plate is provided with three clamping plates arranged side by side, and the adjacent clamping plates are connected by two first hinges arranged vertically to form a foldable structure. One side of the first hinge is connected by a bolt, and the top and bottom of the inner side of each clamping plate are respectively provided with a horizontally arranged spring arc piece. The two ends of each spring arc piece are connected to a limiting block through a second hinge. The clamping plate is provided with a first sliding groove for the sliding of the limiting block and a second sliding groove for the penetration of the second hinge. The first sliding groove and the second sliding groove are connected and horizontally extended. At least two detection sensors are embedded in each clamping plate, and the detection head of the detection sensor penetrates the clamping plate and faces the steel wire rope.

[0006] Preferably, the first sliding groove and the second sliding groove are straight grooves extending horizontally, and the limiting block is located in the first sliding groove and connected to the spring arc piece through the second hinge.

[0007] Preferably, the position of the spring arc piece in contact with the steel wire rope is fixed with an anti-skid piece, and the surface of the anti-skid piece is uniformly distributed with tapered teeth, and the tooth tips of the tapered teeth face the steel wire rope.

[0008] Preferably, the detection sensor is a miniature magnetoresistive sensor, including TMR, AMR or GMR type sensor.

[0009] Preferably, the detection sensor is distributed around the inside of the card plate, and the probe head forms an array around the outer periphery of the steel wire rope after penetrating out of the card plate.

[0010] Preferably, the top of the bolt is fixed by a bolt.

[0011] Preferably, the spring arc piece is made of 65Mn spring steel material, the arc surface curvature radius is adjustable in the range of 8-12mm, and the surface is chrome-plated with a thickness of 0.05mm.

[0012] Preferably, the tooth height of the conical tooth is 0.8mm, the bottom diameter is 1.2mm, the conical tooth is staggered arranged at an angle of 15°, and the tooth spacing is 2mm.

[0013] Compared with the prior art, the utility model has the beneficial effects as follows:

[0014] 1、 the utility model discloses three card plates that are connected by first hinges and are distributed up and down, forming a foldable structure, so that the device can be folded as required, greatly facilitating carrying and storage.

[0015] 2、 the utility model discloses that the inside of each card plate is equipped with a spring arc piece, and a limiting block is arranged at both ends of the spring arc piece, and both are connected through a second hinge, and a first sliding slot for the sliding of the limiting block and a second sliding slot for the penetration of the second hinge are formed on the card plate, which can adapt to steel wire ropes of different diameters, ensure stable clamping, and can be flexibly adjusted to adapt to different working requirements, enhance the versatility and flexibility of the equipment, and the position where the spring arc piece contacts the steel wire rope is fixed with an anti-skid piece with conical teeth arranged on the surface, which can be embedded in the surface texture of the steel wire rope, effectively preventing the clamp from sliding on the steel wire rope. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an overall structure expansion schematic view of the utility model;

[0017] Figure 2 It is an overall structure around schematic view of the utility model;

[0018] Figure 3 It is an overall structure overhead view of the utility model;

[0019] Figure 4 It is a spring arc piece and card plate exploded view of the utility model;

[0020] Figure 5 It is an anti-skid piece axonometric view of the utility model.

[0021] In the figure: 1, card board; 2, first hinge; 3, spring arc piece; 4, limiting block; 5, second hinge; 6, first sliding groove; 7, second sliding groove; 8, anti-skid piece; 9, steel wire rope; 10, conical tooth; 11, bolt; 12, bolt; 13, detection sensor. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] In order to solve the problem of large space occupation and inconvenience of carrying of the steel wire rope wear detection fixture in the prior art, the following technical scheme is given. Please refer to Figures 1-5 ;

[0024] A portable wear detection fixture for a hoist steel wire rope, comprising a card board 1, the card board 1 is provided with three parallel distribution, the adjacent card board 1 is connected by two upper and lower distribution first hinges 2, so that the card board 1 forms a foldable structure, one side first hinge 2 is connected by bolt 12 through bolt 11, when three card board 1 surrounds the steel wire rope 9, bolt 11 is vertically penetrated through first hinge 2, and the top of bolt 11 is fixed by bolt 12, so as to install the fixture on the outer wall of steel wire rope 9, when disassembling, press down bolt 12 and pull out bolt 11, at this time, the card board 1 can be folded according to the need of storage or carrying, the occupied space is reduced, and the carrying is facilitated.

[0025] The top and bottom of the inner side of each card board 1 are respectively provided with a spring arc piece 3, the spring arc piece 3 is made of 65Mn spring steel material, the curvature radius range of the arc surface is 8-12mm adjustable, the surface is chrome plated with a thickness of 0.05mm; the spring arc piece 3 is arranged horizontally, the two ends of each spring arc piece 3 are provided with a limiting block 4, the spring arc piece 3 is connected with the limiting block 4 through a second hinge 5, the first sliding groove 6 for the sliding of the limiting block 4 and the second sliding groove 7 for the penetration of the second hinge 5 are formed in the card board 1, the first sliding groove 6 and the second sliding groove 7 are communicated, and the first sliding groove 6 and the second sliding groove 7 extend horizontally.

[0026] Specifically, after the three clamping plates 1 surround the steel wire rope 9, the steel wire rope 9 is in contact with the spring arc piece 3, and the spring arc piece 3 is deformed by being pressed by the steel wire rope 9. The limiting blocks 4 on both sides of the spring arc piece 3 slide reversely along the first sliding groove 6, cooperating with the deformation of the spring arc piece 3, and the spring arc piece 3 generates an opposite force on the steel wire rope 9, thereby clamping the steel wire rope 9 between several spring arc pieces 3. Meanwhile, the spring arc piece 3 can adapt to steel wire ropes 9 of different diameters.

[0027] The position where the spring arc piece 3 contacts the steel wire rope 9 is fixed with an anti-skid piece 8, and the surface of the anti-skid piece 8 is arranged with tapered teeth 10. The tapered teeth 10 are made of hard alloy material, with a tooth height of 0.8 mm, a bottom diameter of 1.2 mm, and a staggered arrangement of 15°, with a tooth spacing of 2 mm. The tapered teeth 10 can be embedded in the surface pattern of the steel wire rope 9 to enhance the friction between the spring arc piece 3 and the steel wire rope 9, and prevent the clamp from sliding on the steel wire rope 9.

[0028] The inside of the clamping plate 1 is embedded with a detection sensor 13, and at least two detection sensors 13 are arranged on each clamping plate 1. The detection sensors 13 are arranged around the outer periphery of the steel wire rope 9 to form a 360° non-blind angle detection. The detection head of the detection sensor 13 penetrates through the clamping plate 1 and faces the direction of the steel wire rope 9 to detect the internal condition of the steel wire rope 9.

[0029] The detection sensor 13 can be a miniature magnetoresistive sensor, which can be a TMR, AMR or GMR type sensor. This type of sensor has the advantages of small size and light weight, which is convenient for detection personnel to carry. The detection sensor 13 array can detect the magnetic field distribution on the surface of the steel wire rope. The built-in neodymium-iron-boron permanent magnet in the clamping plate magnetizes the steel wire rope 9 to a saturated state through a permanent magnet or a coil to form a uniform magnetic field. When the steel wire rope 9 is broken, worn or corroded, the magnetic resistance at the defect increases, causing the magnetic field to leak. The detection sensor 13 detects the change of the leakage magnetic field to determine the damage, and sends the data to the terminal for analysis through wireless transmission.

[0030] Working principle: When the clamp is installed, three clamping plates 1 in folded state are unfolded and wrapped around the steel wire rope 9, the insertion pin 11 is inserted and locked by the bolt 12 to form a closed ring. During the closing process, the spring arc piece 3 is elastically deformed radially by being pressed by the steel wire rope 9, driving the limiting block 4 to slide reversely along the first sliding groove 6, so that the three clamping plates 1 automatically adapt to steel wire ropes 9 of different diameters. The tapered teeth 10 on the surface of the anti-skid piece 8 are embedded in the surface pattern of the steel wire rope 9, preventing the clamp from sliding through mechanical engagement and ensuring the stability of the detection. When starting the detection, the steel wire rope 9 is magnetized to a saturated state. When the steel wire rope 9 is intact, a uniform magnetic field is formed on its surface. When there is a broken wire, wear or corrosion, the magnetic permeability at the damage site changes, causing a leakage magnetic field. The TMR magnetoresistive sensor arranged in a ring array captures the circumferential magnetic field distribution in real time and transmits it to the terminal device through a wireless module.

[0031] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0032] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application.

Claims

1. A portable wear detection fixture for gate hoist wire ropes, comprising a clamping plate (1), characterized in that, The card plate (1) has three plates arranged in parallel. Adjacent card plates (1) are connected by two vertically distributed first hinges (2) to form a foldable structure. One side of the first hinge (2) is connected by a pin (11). Each card plate (1) has a horizontally arranged spring arc plate (3) at the top and bottom of its inner side. The two ends of each spring arc plate (3) are connected to the limiting block (4) by a second hinge (5). The card plate (1) has a first sliding groove (6) for the limiting block (4) to slide and a second sliding groove (7) for the second hinge (5) to pass through. The first sliding groove (6) and the second sliding groove (7) are connected and extend horizontally. Each card plate (1) has at least two detection sensors (13) embedded inside. The probe of the detection sensor (13) extends out of the card plate (1) and faces the wire rope (9).

2. The portable wear detection fixture for gate hoist wire ropes according to claim 1, characterized in that, The first sliding groove (6) and the second sliding groove (7) are horizontally extending straight grooves. The limiting block (4) is located in the first sliding groove (6) and connected to the spring arc plate (3) through the second hinge (5).

3. The portable wear detection fixture for gate hoist wire ropes according to claim 2, characterized in that, An anti-slip plate (8) is fixed at the position where the spring arc plate (3) contacts the wire rope (9). The surface of the anti-slip plate (8) is evenly distributed with conical teeth (10), and the tips of the conical teeth (10) face the wire rope (9).

4. The portable wear detection fixture for gate hoist wire ropes according to claim 3, characterized in that, The detection sensor (13) is a miniature magnetoresistive sensor, including TMR, AMR or GMR type sensors.

5. A portable wear detection fixture for hoist wire ropes according to claim 4, characterized in that, The detection sensors (13) are distributed around the inside of the card plate (1), and the probes extend out of the card plate (1) to form an array around the outer periphery of the steel wire rope (9).

6. A portable wear detection fixture for gate hoist wire ropes according to claim 5, characterized in that, The top of the pin (11) is secured by a bolt (12).

7. A portable wear detection fixture for hoist wire ropes according to claim 6, characterized in that, The spring arc plate (3) is made of 65Mn spring steel, and the radius of curvature of the arc surface is adjustable from 8 to 12 mm. The surface is chrome plated with a thickness of 0.05 mm.

8. A portable wear detection fixture for hoist wire ropes according to claim 7, characterized in that, The conical teeth (10) have a tooth height of 0.8 mm, a base diameter of 1.2 mm, are arranged in a staggered pattern at 15°, and have a tooth spacing of 2 mm.

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