Detection and alarm device for rope and strand breakage of elevator steel wire rope in fan

Abstract

The utility model discloses a detection and alarm device for rope and strand breakage of a steel wire rope of an elevator in a fan, which relates to the technical field of elevator detection equipment and comprises a tower drum and a winch, a fixing frame is mounted on the inner wall of the tower drum, the winch is mounted on the fixing frame, a main shaft is connected to the inner wall of the tower drum, a transmission wheel is rotatably connected to the main shaft, and a transmission shaft is mounted on the transmission wheel. The winch is connected with a steel wire rope in a wound mode, the end, away from the winch, of the steel wire rope passes through a transmission wheel in a wound mode and is connected with a lift car, and two sets of detection mechanisms are connected to the inner wall of the tower drum and used for detecting rope and strand breakage of the steel wire rope. When the steel wire rope of the elevator is broken, the broken steel wire rope touches the displacement sensors on the two sides in the operation process by utilizing the characteristic that the broken steel wire rope is scattered, the broken steel wire rope can be found in time through signals of the displacement sensors, and an alarm is given in the fan control system, so that operation and maintenance personnel can eliminate potential safety hazards in time; and dangerous situations can be avoided in time.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator detection equipment, in particular to a device for detecting and alarming broken wire ropes of an elevator inside a fan. Background Art

[0002] With the continuous growth of global demand for renewable energy, the wind power industry has also ushered in unprecedented development opportunities. As a key link in wind power equipment, wind turbine tower lifts are not only used to transport personnel and equipment in the wind power industry, but also play a vital role in the daily operation and maintenance, troubleshooting, and inspection of wind farms. Their high efficiency, safety and stability are directly related to the operating efficiency and economic benefits of wind farms.

[0003] Because the elevator uses wire rope to transport personnel and equipment, the wire rope inside the fan will break due to wear due to long-term operation. If the wire rope breakage phenomenon cannot be discovered in time, it is very likely to cause casualties and equipment damage. In order to discover the wire rope breakage phenomenon in time, eliminate safety hazards in time, and ensure the safety of personnel and equipment, a wire rope breakage detection and alarm device for the elevator inside the fan is proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the problems mentioned in the above background technology, and to propose a wire rope breakage detection and alarm device for an internal elevator of a fan.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A device for detecting and alarming broken wire ropes in a wind turbine internal elevator comprises a tower and a winch, wherein a fixing frame is installed on the inner wall of the tower, and the winch is installed on the fixing frame; the inner wall of the tower is connected to a main shaft, a transmission wheel is rotatably connected to the main shaft, a wire rope is wound around the winch, and one end of the wire rope away from the winch is wound around the transmission wheel and connected to a car; two sets of detection mechanisms are connected to the inner wall of the tower for detecting broken wire ropes.

[0007] Preferably, each group of the detection mechanism includes a U-shaped mounting frame and a displacement sensor, the mounting frame is installed on the inner wall of the tower, one end of the mounting frame is slidably connected to a sliding rod, one end of the sliding rod is connected to a moving block, the end of the sliding rod away from the moving block is connected to the displacement sensor, a threaded rod is rotatably connected to the mounting frame, the threaded rod is threadedly connected to the moving block, one end of the threaded rod passes through one end of the mounting frame and is coaxially connected to a control button.

[0008] Preferably, the displacement sensors in the two groups of detection mechanisms are distributed on both sides of the wire rope and are symmetrically distributed.

[0009] Preferably, the mounting bracket and the sliding rod are both made of aluminum alloy.

[0010] Preferably, the two displacement sensors are connected to a common external signal processor.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. When the wire rope of the elevator is broken, the utility model utilizes the characteristic of the broken wire rope to spread out so that it touches the displacement sensors on both sides during operation. The signal of the displacement sensor is used to detect the problem in time and alarm is triggered in the fan control system so that the operation and maintenance personnel can eliminate the safety hazard in time and avoid the occurrence of dangerous situations in time.

[0013] 2. The utility model can rotate the control button to drive the threaded rod to rotate, and the moving block can be controlled to slide through the thread to change the distance between the displacement sensor and the wire rope to control the detection sensitivity and improve the application range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the present utility model.

[0015] Figure 2 It is a structural diagram of the lift in the present utility model.

[0016] Figure 3 It is a structural diagram of the detection mechanism in the utility model.

[0017] In the figure: 1 tower, 2 fixed frame, 3 winch, 4 main shaft, 5 transmission wheel, 6 wire rope, 7 car, 8 mounting frame, 9 slide bar, 10 moving block, 11 threaded rod, 12 control button, 13 displacement sensor. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Reference Figure 1-3 As shown, a wire rope breakage detection and alarm device for an internal elevator of a wind turbine comprises a tower 1 and a winch 3. A fixing frame 2 is installed on the inner wall of the tower 1, and the winch 3 is installed on the fixing frame 2. The inner wall of the tower 1 is connected to a main shaft 4, and a transmission wheel 5 is rotatably connected to the main shaft 4. A wire rope 6 is wound around the winch 3, and one end of the wire rope 6 away from the winch 3 is wound around the transmission wheel 5 and connected to a car 7. Two sets of detection mechanisms are connected to the inner wall of the tower 1 for detecting the breakage of the wire rope 6.

[0020] In this embodiment, each group of the detection mechanism includes a U-shaped mounting frame 8 and a displacement sensor 13. The mounting frame 8 is installed on the inner wall of the tower 1. One end of the mounting frame 8 is slidably connected to a sliding rod 9, one end of the sliding rod 9 is connected to a moving block 10, and the end of the sliding rod 9 away from the moving block 10 is connected to the displacement sensor 13. A threaded rod 11 is rotatably connected to the mounting frame 8, and the threaded rod 11 is threadedly connected to the moving block 10. One end of the threaded rod 11 passes through one end of the mounting frame 8 and is coaxially connected to the control button 12.

[0021] In this embodiment, the displacement sensors 13 in the two groups of detection mechanisms are distributed on both sides of the steel wire rope 6 and are symmetrically distributed.

[0022] In this embodiment, the mounting bracket 8 and the sliding rod 9 are both made of aluminum alloy.

[0023] In this embodiment, the two displacement sensors 13 are connected to a common external signal processor, and the signal processor is connected to the fan control system.

[0024] Working process and principle:

[0025] When the wire rope 6 of the elevator breaks during use, the broken wire rope 6 will spread out. During operation, the broken wire rope 6 will touch the displacement sensors 13 on both sides. The displacement sensor 13 will transmit the received signal to the signal processor for analysis, and the signal processor will then transmit the processed reliable signal to the fan control system. When the fan control system receives the signal, an alarm prompt will appear on the operation screen so that the operation and maintenance personnel can deal with the hidden dangers in time and avoid the occurrence of dangerous situations in time.

[0026] In order to increase the detection sensitivity, the control button 12 can be rotated to drive the threaded rod 11 to rotate, and the moving block 10 can be controlled to slide through the thread to change the distance between the displacement sensor 13 and the wire rope 6 to control the detection sensitivity.

[0027] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wire rope breakage detection and alarm device for a fan internal elevator, characterized in that: The invention comprises a tower (1) and a winch (3), wherein a fixing frame (2) is installed on the inner wall of the tower (1), and the winch (3) is installed on the fixing frame (2). The inner wall of the tower (1) is connected to a main shaft (4), and a transmission wheel (5) is rotatably connected to the main shaft (4). A steel wire rope (6) is wound around the winch (3), and one end of the steel wire rope (6) away from the winch (3) is wound around the transmission wheel (5) and connected to a car (7). Two sets of detection mechanisms are connected to the inner wall of the tower (1) for detecting broken ropes and broken strands of the steel wire rope (6).

2. A wind turbine internal elevator wire rope broken wire rope broken wire rope detection and alarm device according to claim 1, characterized in that: Each group of the detection mechanism includes a U-shaped mounting frame (8) and a displacement sensor (13). The mounting frame (8) is mounted on the inner wall of the tower (1). One end of the mounting frame (8) is slidably connected to a slide rod (9). One end of the slide rod (9) is connected to a moving block (10). The end of the slide rod (9) away from the moving block (10) is connected to the displacement sensor (13). A threaded rod (11) is rotatably connected to the mounting frame (8). The threaded rod (11) is connected to the moving block (10) by a thread. One end of the threaded rod (11) penetrates one end of the mounting frame (8) and is coaxially connected to a control button (12).

3. A wind turbine internal elevator wire rope broken wire rope and strand broken detection and alarm device according to claim 2, characterized in that: The displacement sensors (13) in the two groups of detection mechanisms are distributed symmetrically on both sides of the steel wire rope (6).

4. The device for detecting and alarming broken wire ropes in a wind turbine internal elevator according to claim 2, characterized in that: The mounting frame (8) and the slide bar (9) are both made of aluminum alloy.

5. The device for detecting and alarming broken wire ropes in a wind turbine internal elevator according to claim 2, characterized in that: The two displacement sensors (13) are commonly connected to an external signal processor.

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