Steel wire rope loosening and breaking detection alarm mechanism for elevator

Abstract

The utility model discloses a steel wire rope loosening and breaking detection alarm mechanism for an elevator, and relates to the technical field of elevator detection. A controller is arranged on the lower portion in the mounting frame and at least used for receiving and transmitting detection data, an alarm module is arranged at the top of the mounting frame and sends out alarm signals, a guide assembly is arranged above one side of the mounting frame, and a defect detection module is arranged below one side of the mounting frame. The defect detection module is at least used for detecting the wire breakage condition of the steel wire rope, a driving module is arranged on the upper portion in the mounting frame, a tension detection mechanism in transmission connection with the driving module is arranged on one side of the mounting frame, and the steel wire rope is inserted into the space between the guide assembly and the tension detection mechanism. The tension detection mechanism and the defect detection module are adopted, tension detection and defect detection such as wire breakage of the steel wire rope can be achieved, and the detection accuracy is improved by means of the multi-sensor data fusion technology.

Description

Technical Field

[0001] This utility model relates to the field of elevator testing technology, specifically to an elevator wire rope slack detection alarm mechanism. Background Technology

[0002] As a critical component of the elevator suspension system, the safety of the elevator wire rope directly affects the safety of elevator operation. Statistics show that approximately 15% of elevator accidents are related to wire rope malfunctions, making it essential to constantly monitor the tension of the wire rope.

[0003] The currently used elevator traction wire rope tension analyzer consists of a mechanical torsion device and a wire rope tension analyzer. The mechanical torsion device comprises a triangular torsion housing, a torsion handle, a tension sensor, and an electronic level detection device. A positioning pin is located at the top and bottom of the left vertical side of the triangular torsion housing, and the wire rope passes around the left and right sides of these positioning pins. An electronic level detection device consisting of a double mercury contact switch is located on the upper horizontal side. A torsion handle is connected to the middle of the left hypotenuse via a hinge. A tension sensor is vertically connected between the right corner of the triangular torsion housing and the torsion handle. The instrument collects the vibration period of each wire rope through a photoelectric detection device and stores each period in the memory of a single-chip microcomputer. Then, through the functional relationship between period, frequency, and tension, it calculates the percentage deviation of the tension of each wire rope from the average tension of all wire ropes. Finally, the result is displayed on the instrument's LED digital display.

[0004] However, current elevator wire rope inspections typically involve workers arriving on-site and periodically using an elevator traction wire rope tension analyzer to check for looseness or breakage. This method inevitably leads to delays in inspection, increasing the risk of accidents during elevator use and hindering safety improvements. Therefore, we propose a wire rope looseness detection and alarm mechanism for elevators. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an elevator wire rope slack detection and alarm mechanism, which solves the problems mentioned in the background art.

[0006] In order to achieve the above object, the utility model discloses a kind of steel wire rope loose break detection alarm mechanism for elevator, comprising: mounting bracket;The inside below of the mounting bracket is provided with controller, the controller is at least used to detect the reception and transmission of data, the top of the mounting bracket is provided with alarm module, the alarm module sends alarm signal outward, the side upper portion of the mounting bracket is provided with guide assembly, the side below of the mounting bracket is provided with defect detection module, the defect detection module is at least used to detect the broken wire condition of steel wire rope, the inside upper portion of the mounting bracket is provided with drive module, the side of the mounting bracket is provided with tension detection mechanism with drive module transmission connection, the steel wire rope is inserted in the space between guide assembly and tension detection mechanism.

[0007] Preferably, the mounting bracket is fixedly arranged on the inner wall of the elevator shaft, and the mounting bracket has a C-shaped structure.

[0008] Preferably, the alarm module comprises a warning sound and a warning light.

[0009] Preferably, the guide assembly comprises a support frame fixedly arranged on the outer wall of one side of the mounting bracket, and the outer walls on both sides of the support frame are provided with ear plates, and the outer walls on the top and bottom of one side of the support frame are provided with wheel frames, the inner part of the wheel frame is provided with a support shaft, and the outer walls on the top and bottom of one side of the support frame are respectively provided with limit wheels one and two through the wheel frames and the support shafts.

[0010] Preferably, the defect detection module comprises a base fixedly arranged on the outer wall of one side of the mounting bracket, and the outer wall of one side of the base is provided with an induction coil sleeved on the outer part of the steel wire rope.

[0011] Preferably, the drive module comprises a mounting seat fixedly arranged on one side of the inner part of the mounting bracket, and a hydraulic cylinder is fixedly arranged on the outer wall of one side of the mounting seat, one end of the hydraulic cylinder is inserted with a jacking rod, the end of the jacking rod is fixedly provided with a connecting arm, and the guide rods penetrating through the mounting bracket are arranged on the same side of both ends of the connecting arm.

[0012] Preferably, the tension detection mechanism comprises a tension sensor fixedly arranged on the end of the guide rod, and the end, away from the guide rod, of the tension sensor is provided with a stabilizing frame, and an extrusion wheel is arranged between the two stabilizing frames.

[0013] The utility model provides a kind of steel wire rope loose break detection alarm mechanism for elevator, with the following beneficial effects:

[0014] 1. The tension detection mechanism and defect detection module are used, the tension detection and defect detection such as broken wire of steel wire rope can be realized, the detection accuracy is improved using multi-sensor data fusion technology;

[0015] 2. The driving module is adopted, can drive tension detection mechanism realizes to steel wire rope automatic detection, for example when elevator stops, namely start driving module, can higher frequency to steel wire rope use condition carries out detection, improved to steel wire rope detection timeliness. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure perspective drawing of the elevator steel wire rope loose break detection alarm mechanism of the utility model;

[0017] Figure 2 It is a structure side view of the elevator steel wire rope loose break detection alarm mechanism of the utility model;

[0018] Figure 3 It is a driving module and tension detection mechanism structure schematic view of the elevator steel wire rope loose break detection alarm mechanism of the utility model;

[0019] Figure 4 It is a guide assembly structure schematic view of the elevator steel wire rope loose break detection alarm mechanism of the utility model;

[0020] Figure 5 It is a defect detection module structure schematic view of the elevator steel wire rope loose break detection alarm mechanism of the utility model.

[0021] 1, mounting frame;2, controller;3, alarm module;4, guide assembly;41, support frame;42, ear plate;43, wheel frame;44, support shaft;45, limit wheel one;46, limit wheel two;5, defect detection module;51, base;52, induction coil;6, steel wire rope;7, driving module;71, mounting seat;72, hydraulic cylinder;73, top rod;74, connecting arm;75, guide rod;8, tension detection mechanism;81, tension sensor;82, stabilizing frame;83, extrusion wheel. DETAILED DESCRIPTION

[0022] The embodiment of the utility model is further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0023] As Figures 1-5The utility model provides technical scheme: elevator steel wire rope break detection alarm mechanism, include: mounting bracket 1, the inside below of mounting bracket 1 is provided with controller 2, and controller 2 is at least used to detect the receiving and transmission of data, and the top of mounting bracket 1 is provided with alarm module 3, and alarm module 3 sends out alarm signal outward, and the upper side of mounting bracket 1 is provided with guide assembly 4, and the lower side of mounting bracket 1 is provided with defect detection module 5, and defect detection module 5 is at least used to detect the broken wire condition of steel wire rope 6, and the inside upper side of mounting bracket 1 is provided with drive module 7, and the side of mounting bracket 1 is provided with tension detection mechanism 8 with the drive module 7 transmission connection, and steel wire rope 6 is inserted in the space between guide assembly 4 and tension detection mechanism 8.

[0024] In the embodiment, the mounting rack 1 is fixedly arranged on the inner wall of the elevator shaft, the mounting rack 1 is a C-shaped structure, and the mounting rack 1 is arranged in the interior of the elevator shaft, so that the steel wire rope 6 of the elevator can be detected at any time during operation, and workers do not need to detect on site regularly, the timeliness of detecting the steel wire rope 6 of the elevator is improved, and the safety of the steel wire rope 6 of the elevator is further improved.

[0025] In the embodiment, the controller 2 is arranged at the lower part of the interior of the mounting rack 1, the controller 2 is at least used to detect the receiving and transmission of data, the alarm module 3 is arranged at the top of the mounting rack 1, and the alarm module 3 sends out an alarm signal outward; the alarm module 3 includes a warning sound and a warning light, is used to send a warning signal to the outside world, and reminds people to replace or maintain the steel wire rope 6.

[0026] In the embodiment, the guide assembly 4 is arranged at the upper side of the side of the mounting rack 1, the guide assembly 4 includes a support frame 41 fixedly arranged on the outer wall of the side of the mounting rack 1, the outer walls on the two sides of the support frame 41 are provided with ear plates 42, the outer walls on the upper side and the lower side of the side of the support frame 41 are provided with wheel frames 43, the interiors of the wheel frames 43 are provided with support shafts 44, the upper side and the lower side of the side of the support frame 41 are respectively provided with limit wheels one 45 and limit wheels two 46 through the wheel frames 43 and the support shafts 44; when the elevator car is driven to move by the steel wire rope 6, the limit wheels one 45 and the limit wheels two 46 play a guiding role, or do not contact the limit wheels one 45 and the limit wheels two 46 first; when the tension of the steel wire rope 6 is detected, the tension detection mechanism 8 is driven by the drive module 7 to press the steel wire rope 6, and the limit wheels one 45 and the limit wheels two 46 play a blocking role on the steel wire rope 6.

[0027] In this embodiment, the lower side of the mounting frame 1 is provided with a defect detection module 5, which is used for detecting the wire breakage of the steel wire rope 6. The defect detection module 5 comprises a base 51 fixed to the outer wall of one side of the mounting frame 1, and the outer wall of one side of the base 51 is provided with an induction coil 52 sleeved outside the steel wire rope 6. It should be noted that the magnetic flux leakage and magnetic flux detection are the most widely used technologies at present. The magnetic flux leakage detection: the steel wire rope is magnetized, and the magnetic field change leaked at the defect is detected. The steel wire rope is magnetized by a permanent magnet or a direct current coil, and a magnetic leakage field is generated at the defect. The Hall element or the induction coil detects the magnetic leakage field signal and transmits the detected information to the controller 2. The magnetic flux detection (main magnetic flux method): the change of the overall magnetic flux of the steel wire rope is measured, which is used for evaluating the loss of the metal cross-sectional area; the induction coil 52 is sleeved outside the steel wire rope 6, realizing non-contact or light contact, and avoiding damage to the steel wire rope.

[0028] In this embodiment, the upper side of the inside of the mounting frame 1 is provided with a driving module 7, and the driving module 7 comprises a mounting seat 71 fixed to one side of the inside of the mounting frame 1, and a hydraulic cylinder 72 fixedly arranged on the outer wall of one side of the mounting seat 71. One end of the hydraulic cylinder 72 is inserted with a top rod 73, and the end of the top rod 73 is fixedly provided with a connecting arm 74. The two ends of the connecting arm 74 are provided with guide rods 75 penetrating through the mounting frame 1 on the same side. For example, when the elevator stops, the driving module 7 is automatically started by the controller 2, so that the hydraulic cylinder 72 drives the top rod 73 to extend, the top rod 73 drives the connecting arm 74 and the guide rod 75 to move synchronously, the guide rod 75 drives the tension sensor 81 and the stabilizing frame 82 to move, and the extrusion force 83 extrudes the steel wire rope 6, so that the tension of the steel wire rope is detected by the tension sensor 81. The detected data is transmitted to the controller 2 through the tension sensor 81, and then the controller 2 transmits the data back to the control terminal wirelessly.

[0029] In this embodiment, the side of the mounting frame 1 is provided with a tension detection mechanism 8 in transmission connection with the driving module 7, and the steel wire rope 6 is inserted in the space between the guide assembly 4 and the tension detection mechanism 8. The tension detection mechanism 8 comprises a tension sensor 81 fixed to the end of the guide rod 75, and the tension sensor 81 is provided with a stabilizing frame 82 away from the end of the guide rod 75. Two stabilizing frames 82 are provided with extrusion wheels 83. The tension sensor 81 transmits force through the limiting wheel and the extrusion wheel 83. When the steel wire rope passes through the limiting wheel and the extrusion wheel 83, the tension generated by the steel wire rope is transmitted to the internal force measuring element (such as strain gauge) through the stabilizing frame 92. When the steel wire rope is stressed, the elastic body in the sensor deforms slightly, and the strain gauge resistance value pasted on the elastic body changes accordingly. Through the Wheatstone bridge, it is converted into an electric signal output, which improves the measurement stability.

Claims

1. A broken wire detection alarm mechanism for an elevator steel wire rope, comprising: The utility model provides an installation frame (1), its characterized in be provided with controller (2) inside below the installation frame (1), controller (2) is at least used to detect the receiving and transmission of data, the top of installation frame (1) is provided with alarm module (3), alarm module (3) sends out alarm signal outward, the upper side of one side of installation frame (1) is provided with guide assembly (4), the lower side of one side of installation frame (1) is provided with defect detection module (5), defect detection module (5) is at least used to detect the broken wire condition of steel wire rope (6), the upper inside of installation frame (1) is provided with drive module (7), one side of installation frame (1) is provided with tension detection mechanism (8) with drive module (7) transmission connection, steel wire rope (6) is inserted in the space between guide assembly (4) and tension detection mechanism (8).

2. The elevator steel wire rope breakage detection and alarm mechanism according to claim 1, characterized in that: The installation frame (1) is fixedly arranged on the inner wall of the elevator shaft, and the installation frame (1) has a C-shaped structure.

3. The elevator steel wire rope breakage detection and alarm mechanism according to claim 1, characterized in that: The alarm module (3) includes a warning sound and a warning light.

4. The elevator steel wire rope breakage detection and alarm mechanism according to claim 1, characterized in that: The guide assembly (4) includes a support frame (41) fixedly arranged on the outer wall of one side of the installation frame (1), and the support frame (41) is provided with an ear plate (42) on the outer wall of each side thereof, and the support frame (41) is provided with a wheel frame (43) above and below the outer wall of one side thereof, the wheel frame (43) is provided with a support shaft (44) in the inner portion thereof, and the support frame (41) is provided with a limiting wheel one (45) and a limiting wheel two (46) above and below the outer wall of one side thereof through the wheel frame (43) and the support shaft (44).

5. The elevator steel wire rope breakage detection and alarm mechanism according to claim 1, characterized in that: The defect detection module (5) includes a base (51) fixedly arranged on the outer wall of one side of the installation frame (1), and the base (51) is provided with an induction coil (52) sleeved on the outer portion of the steel wire rope (6).

6. The elevator steel wire rope breakage detection and alarm mechanism according to claim 1, characterized in that: The drive module (7) includes a mounting seat (71) fixedly arranged on one side in the inner portion of the installation frame (1), and the mounting seat (71) is fixedly provided with a hydraulic cylinder (72) on the outer wall of one side thereof, one end of the hydraulic cylinder (72) is inserted with a jacking rod (73) in the inner portion thereof, the jacking rod (73) is fixedly provided with a connecting arm (74) on the end portion thereof, and the connecting arm (74) is provided with a guide rod (75) penetrating through the installation frame (1) on the same side of the two end portions thereof.

7. The elevator steel wire rope breakage detection and alarm mechanism according to claim 6, characterized in that: The tension detection mechanism (8) includes a tension sensor (81) fixedly arranged on the end portion of the guide rod (75), and the tension sensor (81) is provided with a stabilizing frame (82) on the end portion thereof away from the guide rod (75), and the two stabilizing frames (82) are provided with a squeezing wheel (83) therebetween.

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