An elevator steel wire rope damage detection and positioning device

Abstract

The utility model relates to elevator maintenance technical field discloses a kind of elevator wire rope damage detection and positioning device, including wire rope flaw detector main part and swing arm being rotatably connected on wire rope flaw detector main part, the surface of the swing arm is fixedly connected with fixed shaft, the outer surface of the fixed shaft is fixedly installed with locating bearing one, the outer ring of the locating bearing one is fixedly connected with guide wheel, the inside center of the fixed shaft is equipped with sealing groove, the inside sealing sliding connection of the sealing groove has sealing bar, the inside rotatable connection of the fixed shaft has swivel ring.The utility model is through the bidirectional clamping structure of guide wheel and elastic sleeve, using negative pressure drive square sealing block to drive elastic sleeve to move upwards, so that wire rope is clamped between the two, when flaw detector moves, two can be rotated towards and adhere to wire rope surface, without artificial force can be stably adhered, enhances the flaw detector moving stability, improves the positioning detection accuracy.

Description

Technical Field

[0001] This utility model relates to the field of elevator maintenance technology, and more specifically to an elevator wire rope damage detection and positioning device. Background Technology

[0002] A wire rope flaw detector is a professional testing instrument that relies on the principle of electromagnetic induction (such as magnetic flux leakage detection technology). Its working principle is as follows: first, the wire rope is magnetized; then, a sensor captures the magnetic field distortion signal caused by damage. After signal processing, it can detect and accurately locate damage such as broken wires, wear, and corrosion in wire ropes used in equipment such as elevators. It also has data recording and analysis functions, providing a scientific basis for the maintenance and replacement of wire ropes.

[0003] Traditional wire rope flaw detectors typically have a single guide wheel. This guide wheel, by closely fitting the wire rope, limits lateral deviation or swaying during the inspection process, ensuring that it always travels along the wire rope axis, thus guaranteeing the accuracy of the inspection path. However, in actual use, the fit between the single guide wheel and the wire rope mainly relies on manual force. When moving the equipment, slight changes in manual force (such as arm fatigue, tremors, etc.) can easily cause slight displacement of the guide wheel, or even cause the guide wheel to deviate from the wire rope, thereby losing its guiding function. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an elevator wire rope damage detection and positioning device to solve the problems existing in the background art.

[0005] The utility model provides the following technical solution: an elevator wire rope damage detection and positioning device, comprising a wire rope flaw detector body and a swing arm rotatably connected to the wire rope flaw detector body, a fixed shaft fixedly connected to the surface of the swing arm, a positioning bearing fixedly installed on the outer surface of the fixed shaft, a guide wheel fixedly connected to the outer ring of the positioning bearing, a sealing groove formed at the center of the fixed shaft, a sealing rod slidably connected inside the sealing groove, a rotating ring rotatably connected inside the fixed shaft, a bolt fixedly connected to the inner wall of the rotating ring, the outer surface of the bolt threadedly engaged with the center of the sealing rod, a positioning component installed on the outer surface of the fixed shaft, and the interior of the sealing groove connected to the input end of the positioning component via a connecting pipe.

[0006] Furthermore, the positioning assembly includes a fixed cylinder fixedly connected to the outer surface of the fixed shaft, a piston cylinder fixedly connected to the surface of the fixed cylinder, the interior of the sealing groove being connected to the top end of the piston cylinder via a connecting pipe, a square sealing block being slidably connected to the interior of the piston cylinder, a connecting rod being fixedly connected to the bottom of the square sealing block, a base plate being fixedly connected to the end face of the connecting rod, a second positioning bearing being fixedly installed inside the base plate, a rotating shaft being fixedly connected to the inner ring of the second positioning bearing, and an elastic sleeve being fixedly fitted onto the outer surface of the rotating shaft.

[0007] Furthermore, the elastic sleeve is a silicone sleeve, and the surface of the guide wheel is arc-shaped.

[0008] Furthermore, a threaded groove matching the bolt is provided at the center of the sealing rod, and slots are provided on both sides of the threaded groove on the surface of the sealing rod. Insert rods are inserted into the slots, and the end face of the insert rods is fixedly connected to the left end of the sealing groove.

[0009] Furthermore, both the sealing groove and the piston cylinder are under negative pressure, and a sealing ring is fixedly installed on the outer surface of the sealing rod.

[0010] Furthermore, a sealing ring is fixedly installed on the outer surface of the square sealing block, and the top end of the connecting rod extends into the interior of the piston cylinder.

[0011] The technical effects and advantages of this utility model are as follows: 1. This utility model, by setting a bidirectional clamping structure between a guide wheel and an elastic sleeve, uses negative pressure to drive a square sealing block to move the elastic sleeve upward, so that the wire rope is tightly clamped between the guide wheel and the elastic sleeve. When the flaw detector moves on the wire rope, the two can rotate towards each other and fit against the surface of the wire rope. Stable fit can be maintained without continuous manual force, effectively avoiding the problem of guide wheel displacement caused by changes in manual force, significantly enhancing the stability of the flaw detector during movement, and thus improving the accuracy of positioning and detection.

[0012] 2. In this utility model, the elastic sleeve is made of silicone material, which has good elasticity and wear resistance. It can adapt to steel wire ropes of different diameters and maintain a stable clamping force. The arc design of the guide wheel surface can fit more closely with the surface of the steel wire rope, reducing sliding friction. At the same time, the negative pressure design of the sealing groove and piston cylinder, combined with the sealing ring, sealing ring and other structures, ensures the sealing performance and long-term stability of the system, reduces the interference of external factors on the detection process, and enables the device to maintain reliable detection performance during long-term use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the fixed shaft and guide wheel in this utility model; Figure 3 This is a schematic diagram of the sealing rod in this utility model; Figure 4 This is a schematic diagram showing the connection between the fixed cylinder and the piston cylinder in this utility model.

[0014] The attached figures are labeled as follows: 1. Main body of the wire rope flaw detector; 2. Swing arm; 3. Fixed shaft; 4. Positioning bearing one; 5. Guide wheel; 6. Sealing groove; 7. Sealing rod; 71. Threaded groove; 8. Rotary ring; 9. Bolt; 10. Positioning assembly; 101. Fixed cylinder; 102. Piston cylinder; 103. Square sealing block; 104. Connecting rod; 105. Base plate; 106. Positioning bearing two; 107. Rotating shaft; 108. Elastic sleeve. Detailed Implementation

[0015] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0016] Figures 1-4 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-4 The present invention will be further described below.

[0017] An elevator wire rope damage detection and positioning device includes a wire rope flaw detector body 1 and a swing arm 2 rotatably connected to the wire rope flaw detector body 1. A fixed shaft 3 is fixedly connected to the surface of the swing arm 2. A positioning bearing 4 is fixedly installed on the outer surface of the fixed shaft 3. A guide wheel 5 is fixedly connected to the outer ring of the positioning bearing 4. A sealing groove 6 is opened at the center of the interior of the fixed shaft 3. A sealing rod 7 is slidably connected inside the sealing groove 6. A rotating ring 8 is rotatably connected inside the fixed shaft 3. A bolt 9 is fixedly connected to the inner wall of the rotating ring 8. The outer surface of the bolt 9 is threadedly engaged with the center of the interior of the sealing rod 7. A positioning component 10 is installed on the outer surface of the fixed shaft 3. The interior of the sealing groove 6 is connected to the input end of the positioning component 10 through a connecting pipe.

[0018] In this embodiment, the rotating connection between the swing arm 2 and the main body 1 of the wire rope flaw detector allows the fixed shaft 3 to drive the guide wheel 5 and the positioning component 10 to flexibly fit wire ropes of different specifications. The positioning bearing 4 ensures that the guide wheel 5 can rotate freely around the fixed shaft 3 to adapt to the curvature of the wire rope surface. The threaded engagement between the sealing groove 6, the sealing rod 7 and the bolt 9 allows the position of the sealing rod 7 to be adjusted by rotating the bolt 9. In turn, the positioning component 10 is driven by negative pressure to achieve automatic clamping of the wire rope.

[0019] Specifically, the positioning assembly 10 includes a fixed cylinder 101 fixedly connected to the outer surface of the fixed shaft 3, a piston cylinder 102 fixedly connected to the surface of the fixed cylinder 101, the interior of the sealing groove 6 being connected to the top of the interior of the piston cylinder 102 via a connecting pipe, a square sealing block 103 being slidably connected to the interior of the piston cylinder 102, a connecting rod 104 being fixedly connected to the bottom of the square sealing block 103, a base plate 105 being fixedly connected to the end face of the connecting rod 104, a positioning bearing 106 being fixedly installed inside the base plate 105, a rotating shaft 107 being fixedly connected to the inner ring of the positioning bearing 106, and an elastic sleeve 108 being fixedly fitted onto the outer surface of the rotating shaft 107.

[0020] In this embodiment, the fixed cylinder 101 and the piston cylinder 102 form a sealed cavity. The square sealing block 103 is driven to move upward by the negative pressure of the sealing groove 6, which in turn drives the connecting rod 104, the base plate 105 and the elastic sleeve 108 to move upward, so that the elastic sleeve 108 and the guide wheel 5 form a two-way clamping structure. The positioning bearing 106 and the rotating shaft 107 ensure that the elastic sleeve 108 can rotate with the wire rope, reduce friction and improve clamping stability.

[0021] Specifically, the elastic sleeve 108 is a silicone sleeve, and the surface of the guide wheel 5 is arc-shaped.

[0022] In this embodiment, the elastic sleeve 108 made of silicone material has good elasticity and wear resistance, can adapt to steel wire ropes of different diameters and maintain clamping force, and the arc-shaped surface of the guide wheel 5 fits more closely with the surface of the steel wire rope, reducing slippage and improving guiding accuracy.

[0023] Specifically, a threaded groove 71 matching the bolt 9 is provided at the center of the sealing rod 7. Slots are provided on both sides of the threaded groove 71 on the surface of the sealing rod 7. Insert rods are inserted into the slots, and the end face of the insert rods is fixedly connected to the left end of the sealing groove 6.

[0024] In this embodiment, the engagement of the threaded groove 71 with the bolt 9 enables the axial movement adjustment of the sealing rod 7, and the cooperation between the slot and the insert restricts the rotation of the sealing rod 7, ensuring that it only slides axially and guaranteeing the stability of the negative pressure system.

[0025] Specifically, both the sealing groove 6 and the piston cylinder 102 are under negative pressure, and a sealing ring is fixedly installed on the outer surface of the sealing rod 7.

[0026] In this embodiment, the negative pressure state provides driving force, causing the square sealing block 103 to drive the elastic sleeve 108 to move up automatically to clamp the wire rope. The sealing ring ensures the sealing performance of the sealing groove 6, prevents negative pressure leakage, and ensures the stability of the clamping force.

[0027] Specifically, a sealing ring is fixedly installed on the outer surface of the square sealing block 103, and the top end of the connecting rod 104 extends into the interior of the piston cylinder 102.

[0028] In this embodiment, the sealing ring ensures the sealing of the piston cylinder 102 and maintains the negative pressure effect. The connecting rod 104 extends into the piston cylinder 102, so that the movement of the square sealing block 103 can be accurately transmitted to the base plate 105 and the elastic sleeve 108, ensuring the reliability of the clamping action.

[0029] The working principle and usage process of this utility model are as follows: In use, after installing the main body 1 of the wire rope flaw detector outside the wire rope, the surface of the wire rope abuts against the surface of the guide wheel 5. Then, by rotating the bolt 9 clockwise, the bolt 9 engages with the threaded groove 71, causing the sealing rod 7 to slide. At this time, the inside of the sealing groove 6 is under negative pressure, and the piston cylinder 102 is also under negative pressure through the connecting pipe. Due to the negative pressure, the square sealing block 103 drives the base plate 105 to slide upwards through the connecting rod 104. The base plate 105 is connected to the positioning bearing 1. 06 and the rotating shaft 107 drive the elastic sleeve 108 to slide upwards, so that the surface of the elastic sleeve 108 abuts against the bottom of the wire rope. At this time, the wire rope is tightly clamped by the elastic sleeve 108 and the guide wheel 5. When the wire rope flaw detector body 1 moves on the wire rope, the guide wheel 5 and the elastic sleeve 108 rotate in opposite directions and connect to the surface of the wire rope. The operator does not need to apply external force to the wire rope flaw detector body 1, so that the surface of the guide wheel 5 fits against the surface of the wire rope, which enhances the stability of the movement of the wire rope flaw detector body 1 and improves the accuracy of positioning and detection.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A device for detecting and locating damage to elevator wire ropes, comprising a wire rope flaw detector body (1) and a swing arm (2) rotatably connected to the wire rope flaw detector body (1), characterized in that: A fixed shaft (3) is fixedly connected to the surface of the swing arm (2). A positioning bearing (4) is fixedly installed on the outer surface of the fixed shaft (3). A guide wheel (5) is fixedly connected to the outer ring of the positioning bearing (4). A sealing groove (6) is provided at the center of the interior of the fixed shaft (3). A sealing rod (7) is slidably connected inside the sealing groove (6). A rotating ring (8) is rotatably connected inside the fixed shaft (3). A bolt (9) is fixedly connected to the inner wall of the rotating ring (8). The outer surface of the bolt (9) is threadedly engaged with the center of the interior of the sealing rod (7). A positioning component (10) is installed on the outer surface of the fixed shaft (3). The interior of the sealing groove (6) is connected to the input end of the positioning component (10) through a connecting pipe.

2. The elevator wire rope damage detection and positioning device according to claim 1, characterized in that: The positioning assembly (10) includes a fixed cylinder (101) fixedly connected to the outer surface of the fixed shaft (3). A piston cylinder (102) is fixedly connected to the surface of the fixed cylinder (101). The interior of the sealing groove (6) is connected to the top of the piston cylinder (102) through a connecting pipe. A square sealing block (103) is slidably connected to the interior of the piston cylinder (102). A connecting rod (104) is fixedly connected to the bottom of the square sealing block (103). A base plate (105) is fixedly connected to the end face of the connecting rod (104). A positioning bearing (106) is fixedly installed inside the base plate (105). A rotating shaft (107) is fixedly connected to the inner ring of the positioning bearing (106). An elastic sleeve (108) is fixedly sleeved on the outer surface of the rotating shaft (107).

3. The elevator wire rope damage detection and positioning device according to claim 2, characterized in that: The elastic sleeve (108) is a silicone sleeve, and the surface of the guide wheel (5) is arc-shaped.

4. The elevator wire rope damage detection and positioning device according to claim 1, characterized in that: The sealing rod (7) has a threaded groove (71) that matches the bolt (9) at its center. The surface of the sealing rod (7) has slots on both sides of the threaded groove (71). Insert rods are inserted into the slots, and the end face of the insert rods is fixedly connected to the left end of the sealing groove (6).

5. The elevator wire rope damage detection and positioning device according to claim 2, characterized in that: The interior of the sealing groove (6) and the piston cylinder (102) are both under negative pressure, and a sealing ring is fixedly installed on the outer surface of the sealing rod (7).

6. The elevator wire rope damage detection and positioning device according to claim 2, characterized in that: A sealing ring is fixedly installed on the outer surface of the square sealing block (103), and the top end of the connecting rod (104) extends into the interior of the piston cylinder (102).

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