Elevator hoisting rope defect detection device

Abstract

The utility model discloses an elevator traction steel wire rope defect detection device, including the mounting plate of fixed support I -beam, the top of mounting plate is provided with the box, the inside installation of box has two -way screw rod, two -way screw rod both ends connect crossbeam, and the one side of crossbeam to steel wire rope is equipped with ultrasonic detector, and is installed on the crossbeam and has the clamping plate, and the top of clamping plate is connected with the support plate, and the support plate is installed with the corresponding marker pen of steel wire rope, and the marker pen is installed in the half open pen container, and the half open pen container moves through the cam mechanism of control motor drive to complete the defect mark, this device can be stably installed on the support component, ensures the positioning accuracy in the detection process, and through the precision of ultrasonic detection of two -way adjusting structure promotion, and cooperate automatic marking mechanism to the defect area of detected is carried out synchronous identification, has improved the efficiency and reliability of elevator steel wire rope defect detection significantly.

Description

Technical Field

[0001] This utility model belongs to the field of elevator traction steel wire rope detection technology, specifically relating to an elevator traction steel wire rope defect detection device. Background Technology

[0002] With the increasing density of urban buildings and the continuous increase in building height, elevators, as an indispensable vertical transportation tool in high-rise buildings, are being used more and more widely. The safety and reliability of elevator operation have a significant impact on the personal safety of passengers. As the core load-bearing component of the elevator hoisting system, the operating condition of the traction steel wire rope directly determines the service life and safety performance of the entire elevator. Therefore, regular inspection and maintenance of the traction steel wire rope has become one of the key aspects of elevator maintenance work.

[0003] Currently, common methods for detecting defects in wire ropes mainly include manual visual inspection, partial sampling inspection, or segment-by-segment scanning using handheld detectors. These methods suffer from low inspection efficiency, complex operation, and susceptibility to human judgment errors. Furthermore, they are difficult to detect hidden defects such as minor broken wires or internal cracks in the wire rope in a timely manner, which can easily lead to safety hazards.

[0004] To improve the accuracy and efficiency of wire rope inspection, some technical solutions have introduced ultrasonic testing devices, enabling non-contact defect identification. However, in existing technologies, most of these devices are complex in structure and unstable in positioning, failing to ensure a stable relative position between the testing instrument and the wire rope. This can easily lead to data distortion due to equipment misalignment during the inspection process. Furthermore, after inspection, quickly and accurately marking defect locations still relies on manual judgment, which is inefficient and prone to mismarking and omissions in scenarios involving simultaneous inspection of multiple wire ropes. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide an elevator traction steel wire rope defect detection device. It can realize the automatic marking of defect locations in traction steel wire rope defect detection devices. There is an urgent need to solve the problems of difficult installation and fixing, poor detection accuracy and low defect marking efficiency through structural improvements.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a defect detection device for elevator traction steel wire rope, comprising an installation plate fixed to the upper surface of a supporting I-beam, a box being provided on the top of the installation plate, the side of the box facing the steel wire rope being open, a bidirectional screw being rotatably installed inside the box, and crossbeams being symmetrically slidably installed on the front side of the box, with the ends of the two crossbeams respectively screwed onto both sides of the surface of the bidirectional screw.

[0007] The two crossbeams are respectively placed on both sides of the steel wire rope, and an ultrasonic detector is set on the side of the two crossbeams that are close to each other. The two ultrasonic detectors test the steel wire rope.

[0008] A clamping plate is installed on the surface of one of the beams, and a support plate extends outward from the top of the clamping plate. A marker pen is slidably installed on the surface of the support plate.

[0009] Furthermore, extension plates are symmetrically fixed on both sides of the mounting plate below. Threaded bolts are vertically screwed onto the surface of the extension plates. A pressure plate is provided at the bottom of the threaded bolt. The pressure plate presses against the supporting I-beam. The mounting plate is kept fixed by the pressure of the pressure plates on both sides.

[0010] Furthermore, the upper and lower surfaces of the crossbeam are provided with sliding grooves, the clamping plate has a U-shaped structure, the upper and lower inner walls of the clamping plate are provided with protrusions, the protrusions are placed inside the sliding grooves, and a bolt is screwed onto one side of the clamping plate, the clamping plate is fixed to the crossbeam by the bolt.

[0011] Furthermore, grooves are evenly formed on the upper surface of the support plate, and upright plates are evenly arranged on the upper surface of the support plate, with the upright plates positioned on the side of the grooves away from the wire rope.

[0012] Furthermore, a semi-open pen holder is slidably installed inside the groove. The cross-section of the semi-open pen holder is a C-shaped structure with an upward opening. The side of the semi-open pen holder closest to the steel rope is open. The marker is fixed inside the semi-open pen holder, and multiple markers correspond one-to-one with multiple steel wire ropes.

[0013] Furthermore, a fixing bolt is provided on the side of the semi-open pen holder away from the steel wire rope. The fixing bolt passes through the upright plate, and a compression ball head is provided at the end of the fixing bolt. A spring is sleeved on the surface of the fixing bolt. The spring is placed between the upright plate and the compression ball head, and the spring applies a thrust to the compression ball head away from the direction of the steel wire rope.

[0014] Furthermore, a control motor is uniformly fixed on the outer side of the bottom of the support plate, and a cam is provided at the output end of the control motor. The cam is positioned above the support plate, and the extrusion ball head contacts the surface of the cam.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model achieves stable clamping of the supporting I-beam by setting an extension plate, threaded bolt and pressure plate under the mounting plate, so that the entire testing device can be firmly installed on steel structures of different specifications, avoiding errors caused by equipment offset during the testing process, and improving the stability and reliability of the test data.

[0017] By installing a bidirectional screw inside the housing and driving the two side beams to slide, combined with the opposing arrangement of the ultrasonic detectors at both ends, the relative distance between the detector and the wire rope can be precisely adjusted to ensure that the transmission and reception of ultrasonic signals remain aligned during testing. This effectively improves the sensitivity and accuracy of wire rope defect detection and overcomes the problem of blind spots caused by inaccurate positioning in existing technologies.

[0018] By installing a clamping plate and a support plate on the outside of the crossbeam, setting up semi-open pen holders and markers corresponding to the steel wire ropes, and combining the coordinated action of the cam, control motor, extrusion ball head and spring, the detected defective parts can be automatically marked. Compared with the traditional method of relying on manual observation and marking, this structure can significantly improve the efficiency and accuracy of defect marking, avoid omissions and mismarking, and improve the response speed and operation convenience of subsequent maintenance work. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention under the detection state;

[0020] Figure 2 This is a schematic diagram of the beam and plate installation structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the beam installation structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the mounting plate structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the card plate mounting structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the support plate and marker installation structure of this utility model.

[0025] The components represented by each number in the attached diagram are listed below: 1. Supporting I-beam; 2. Mounting plate; 21. Extension plate; 22. Threaded bolt; 23. Pressure plate; 24. Housing; 25. Double-acting screw; 3. Crossbeam; 31. Ultrasonic detector; 32. Slide groove; 4. Clamping plate; 41. Support plate; 42. Raised strip; 43. Groove; 44. Vertical plate; 5. Semi-open pen holder; 51. Fixing bolt; 52. Extrusion ball head; 6. Marker pen; 7. Spring; 8. Control motor; 81. Cam. Detailed Implementation

[0026] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0027] refer to Figures 1-6 As shown, an elevator traction wire rope defect detection device includes a mounting plate 2 fixed to the upper surface of a supporting I-beam 1. A housing 24 is mounted on the top of the mounting plate 2, with the side of the housing 24 facing the wire rope open for easy observation of the internal structure and detection status by the operator. A bidirectional screw 25 is rotatably mounted inside the housing 24, and the bidirectional screw 25 is connected to the internal support shaft seat of the housing 24 via a central bearing assembly, allowing it to rotate stably. Crossbeams 3 are symmetrically slidably mounted on the front side of the housing 24, with the ends of the two crossbeams 3 respectively screwed onto the two sides of the surface of the bidirectional screw 25. Rotating the bidirectional screw 25 drives the two crossbeams 3 to move relative to each other, adjusting the detection distance with the wire rope. By fixing the mounting plate 2 to the supporting I-beam 1, on-site online detection of the elevator wire rope can be achieved.

[0028] Two crossbeams 3 are placed on both sides of the wire rope. An ultrasonic detector 31 is installed on the side of the two crossbeams 3 that is close to each other. The two ultrasonic detectors 31 use their probes to perform opposite detection on the wire rope. They adopt the non-contact sound wave detection principle and can identify defects such as surface cracks, wear and internal broken wires in the wire rope. The ultrasonic detectors 31 and the crossbeams 3 adopt a nested slot installation structure and use buffer washers to reduce shock and improve detection stability and data accuracy. The detection data is transmitted to an external controller via a signal line to realize real-time feedback of defect identification and location.

[0029] One of the crossbeams 3 has a clamping plate 4 installed on its surface. A support plate 41 extends outward from the top of the clamping plate 4. The support plate 41 and the clamping plate 4 are integrally cast to ensure overall strength and assembly accuracy. Marking pens 6 are evenly slidably installed on the surface of the support plate 41. Multiple marking pens 6 are arranged in parallel and positioned on the detection channels corresponding to each wire rope through limiting grooves 43 to ensure synchronous marking function after defect detection of each wire rope. This structure realizes parallel detection of multiple wire ropes and rapid identification and marking of defects, improving the efficiency and accuracy of detection operations.

[0030] refer to Figure 3 and Figure 4 As shown, extension plates 21 are symmetrically fixed on both sides of the mounting plate 2. The extension plates 21 are L-shaped steel plate structures, which are welded and fixed to the mounting plate 2 to form a reinforced connection and improve the overall rigidity. The surface of the extension plates 21 is vertically screwed with threaded bolts 22. A pressure plate 23 is provided at the bottom of the threaded bolts 22. The pressure plate 23 is a rectangular steel block structure. Its lifting and lowering are controlled by rotating the threaded bolts 22 to apply clamping force to the supporting I-beam 1. The mounting plate 2 is kept fixed by the pressure of the pressure plates 23 on both sides, thereby ensuring that the detection device does not shift during use and ensuring the accuracy of the detection data.

[0031] refer to Figure 2 and Figure 5As shown, the upper and lower surfaces of the crossbeam 3 are provided with sliding grooves 32, which are T-shaped structures used to cooperate with external mounting parts for precise positioning; the clamping plate 4 is a U-shaped structure, and the upper and lower inner walls of the clamping plate 4 are provided with protrusions 42, which are placed inside the sliding grooves 32, so that the clamping plate 4 can slide and be positioned along the sliding grooves 32; a bolt is screwed on one side of the clamping plate 4, and the bolt and nut structure locks the sliding groove after tightening. The clamping plate 4 is fixed to the crossbeam 3 by the bolt, ensuring that the subsequent marking mechanism operates stably without deviation.

[0032] refer to Figure 5 and Figure 6 As shown, grooves 43 are evenly distributed on the upper surface of the support plate 41. The grooves 43 are rectangular sliding grooves, and each groove 43 corresponds to a steel wire rope. Vertical plates 44 are evenly distributed on the upper surface of the support plate 41. The vertical plates 44 are vertical plate structures and are vertically welded to the support plate 41. The vertical plates 44 are placed on the side of the grooves 43 away from the steel wire ropes, and are used to provide load-bearing and limiting functions for the control drive mechanism to be installed later. This structure ensures that the stroke of the pen holder mechanism is limited to the detection area range, preventing false touches or false markings caused by exceeding the displacement.

[0033] refer to Figure 2 and Figure 6 As shown, a semi-open pen holder 5 is slidably installed inside the groove 43. The cross-section of the semi-open pen holder 5 is a C-shaped structure with an upward opening, which facilitates the insertion or removal of the marker pen 6. The side of the semi-open pen holder 5 closest to the wire rope is open, which facilitates the contact of the marker pen 6 with the surface of the wire rope during movement. The marker pen 6 is fixed inside the semi-open pen holder 5, and the installation adopts a flexible buckle and threaded fixing method to prevent loosening. Multiple marker pens 6 correspond one-to-one with multiple wire ropes. Combined with the front-end detection data and control signals, the defective parts can be marked synchronously.

[0034] refer to Figure 6 As shown, a fixing bolt 51 is provided on the side of the semi-open pen holder 5 away from the steel wire rope. The fixing bolt 51 passes through the upright plate 44. A compression ball head 52 is provided at the end of the fixing bolt 51. The compression ball head 52 is a spherical steel ball structure, which is inserted into the end of the fixing bolt 51. A spring 7 is sleeved on the surface of the fixing bolt 51. The spring 7 is a helical compression spring. The spring 7 is placed between the upright plate 44 and the compression ball head 52. The spring 7 applies a thrust to the compression ball head 52 away from the direction of the steel wire rope, so that the pen holder returns to the initial position away from the steel wire rope in the unmarked state to prevent accidental touch or mismarking.

[0035] refer to Figure 6As shown, control motors 8 are uniformly fixed on the outer side of the bottom of the support plate 41. The control motors 8 are miniature electric push rods. A cam 81 is provided at the output end of the control motor 8. The cam 81 is a non-circular eccentric wheel structure. The cam 81 is placed above the support plate 41 and is integrally connected to the motor output shaft. The extrusion ball head 52 contacts the surface of the cam 81. After the motor is powered on, it drives the cam 81 to rotate. The eccentric contour of the cam 81 pushes the extrusion ball head 52 to move axially along the fixing bolt 51, thereby driving the semi-open pen holder 5 to slide along the groove 43 and push the end of the marker pen 6 to contact the surface of the wire rope, accurately marking the detected defect parts and completing the fully automated marking of the defect location process.

[0036] The working principle of this utility model is as follows: During testing, the mounting plate 2 is first fixed on the supporting I-beam 1, and the threaded bolts 22 on both sides are rotated to control the movement of the pressure plate 23, which then clamps the inner wall of the supporting I-beam 1 to keep the mounting plate 2 fixed. The position is adjusted to ensure that the two crossbeams 3 are placed on both sides of the wire rope. Then, the double-acting screw 25 is rotated to control the two crossbeams 3 to move closer to each other so that the wire rope can be tested by the ultrasonic tester 31. The test data is transmitted to the controller through the signal line.

[0037] The clamping plate 4 is installed on the outer crossbeam 3, and the protrusion 42 engages with the slide groove 32 to adjust the position of the marker pen 6 so that the marker pen 6 corresponds one-to-one with the wire rope. Then, it is fixed by screwing in the bolts. Since the spring 7 applies a force away from the wire rope to the extrusion ball head 52, the extrusion ball head 52 and the surface of the cam 81 are always in contact. Under normal conditions, the semi-open pen cylinder 5 is moved to the side away from the wire rope. At this time, the marker pen 6 does not contact the wire rope. When a local defect is detected in a wire rope, the corresponding control motor 8 is activated to control the cam 81 to rotate. The cam 81 pushes the extrusion ball head 52 to move, which in turn pushes the semi-open pen cylinder 5 to move. The bottom of the semi-open pen cylinder 5 slides inside the groove 43 to ensure its stability during sliding. When the semi-open pen cylinder 5 moves, it causes the end of the marker pen 6 to contact the wire rope, and then marks the detected defect area to facilitate the staff to quickly find the defect and improve the convenience of the inspection.

[0038] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A defect detection device for elevator traction steel wire rope, comprising a mounting plate (2) fixed to the upper surface of a supporting I-beam (1), characterized in that: The mounting plate (2) is provided with a box (24) on the top. The box (24) is open on the side facing the wire rope. A bidirectional screw (25) is rotatably installed inside the box (24). A crossbeam (3) is symmetrically slidably installed on the front side of the box (24). The ends of the two crossbeams (3) are respectively screwed onto both sides of the surface of the bidirectional screw (25). The two crossbeams (3) are respectively placed on both sides of the wire rope. An ultrasonic detector (31) is provided on the side of the two crossbeams (3) that are close to each other. The two ultrasonic detectors (31) test the wire rope. One of the beams (3) has a clamping plate (4) installed on its surface. A support plate (41) extends outward from the top of the clamping plate (4). A marker pen (6) is evenly slidably installed on the surface of the support plate (41).

2. The elevator traction steel wire rope defect detection device according to claim 1, characterized in that: The mounting plate (2) is symmetrically fixed with extension plates (21) on both sides below. The surface of the extension plate (21) is vertically screwed with a threaded bolt (22). The bottom of the threaded bolt (22) is provided with a pressure plate (23). The pressure plate (23) presses against the supporting I-beam (1). The mounting plate (2) is kept fixed by the pressure of the pressure plates (23) on both sides.

3. The elevator traction steel wire rope defect detection device according to claim 1, characterized in that: The crossbeam (3) has grooves (32) on both the upper and lower surfaces. The clamping plate (4) has a U-shaped structure. The upper and lower inner walls of the clamping plate (4) are provided with protrusions (42). The protrusions (42) are placed inside the grooves (32). A bolt is screwed onto one side of the clamping plate (4). The clamping plate (4) is fixed to the crossbeam (3) by the bolt.

4. The elevator traction steel wire rope defect detection device according to claim 1, characterized in that: The upper surface of the support plate (41) is uniformly provided with grooves (43), and the upper surface of the support plate (41) is uniformly provided with upright plates (44), which are placed on the side of the grooves (43) away from the wire rope.

5. The elevator traction steel wire rope defect detection device according to claim 4, characterized in that: A semi-open pen holder (5) is slidably installed inside the groove (43). The cross-section of the semi-open pen holder (5) is an upward-opening C-shaped structure. The side of the semi-open pen holder (5) close to the steel rope is open. The marker (6) is fixed inside the semi-open pen holder (5). Multiple markers (6) correspond one-to-one with multiple steel wire ropes.

6. The elevator traction steel wire rope defect detection device according to claim 5, characterized in that: The semi-open pen holder (5) is provided with a fixing bolt (51) on the side away from the steel wire rope. The fixing bolt (51) passes through the upright plate (44). The end of the fixing bolt (51) is provided with a compression ball head (52). A spring (7) is sleeved on the surface of the fixing bolt (51). The spring (7) is placed between the upright plate (44) and the compression ball head (52). The spring (7) applies a thrust to the compression ball head (52) away from the direction of the steel wire rope.

7. The elevator traction steel wire rope defect detection device according to claim 6, characterized in that: A control motor (8) is uniformly fixed on the outer side of the bottom of the support plate (41). A cam (81) is provided at the output end of the control motor (8). The cam (81) is placed above the support plate (41). The extrusion ball head (52) is in contact with the surface of the cam (81).

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