A kind of early warning device for automatically detecting elevator steel wire rope tension

Abstract

The utility model discloses an automatic detection elevator steel wire rope tension early warning device relates to steel wire rope tension detection technical field, including multilayer wheel disc, the inner wall of wheel disc is equipped with the main shaft, and the end of main shaft is equipped with the tractor, and the wheel disc is used for the tractor of steel wire rope, and is equipped with the spacer between the wheel disc of adjacent, and the inside of spacer is equipped with a plurality of pressure sensor, and the position of pressure sensor is located the side area of steel wire rope winding wheel disc, in this device, adopts the wheel disc design of split type, and the spacer between each wheel disc will carry out the real -time test to the deflection pressure of each steel wire rope, and data transmission is carried out to system control center through pressure sensor, when detecting the tension of certain steel wire rope is unusual, and the system will immediately trigger the early warning mechanism. This design not only realizes the independent monitoring of the tension of each steel wire rope, but also can accurately locate the abnormal position, effectively avoids the error omission problem caused by the whole detection in traditional method.

Description

Technical Field

[0001] This utility model relates to the field of elevator wire rope tension detection technology, specifically an early warning device for automatically detecting elevator wire rope tension. Background Technology

[0002] During elevator system operation, the uniformity of tension distribution between the wire rope and the traction sheave directly affects the safety of equipment operation. Currently, elevator tension detection mainly focuses on the overall tension value of the wire rope, lacking real-time monitoring methods for the specific contact state of the wire rope in the sheave groove. When uneven tension occurs in one or more wire ropes, it can cause abnormal displacement of the wire rope in the sheave groove, accelerating the wear of the wire rope and the sheave groove.

[0003] Existing detection technologies have significant limitations: first, they cannot monitor the tension distribution of the wire rope in real time during operation; second, they are difficult to pinpoint the exact location of tension anomalies; and third, they lack the ability to provide early warnings of tension deviations. Traditional detection methods require manual inspection after the elevator has been shut down, which not only affects the normal use of the elevator but also fails to detect dynamic tension changes during operation in a timely manner, posing safety hazards.

[0004] Therefore, this utility model proposes an early warning device for automatically detecting the tension of elevator wire ropes. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic early warning device for detecting the tension of elevator wire ropes, so as to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: an automatic early warning device for detecting the tension of elevator wire ropes, comprising multiple wheel discs, a main shaft on the inner wall of the wheel discs, a traction machine at the end of the main shaft, the wheel discs for traction of the wire ropes, spacers between adjacent wheel discs, and multiple pressure sensors inside the spacers, the pressure sensors being located on the side area where the wire rope is wound around the wheel disc.

[0006] Preferably, the traction machine has an oil storage box on its side, the oil storage box has multiple spray nozzles inside, the oil storage box has a block to block the spray nozzles inside, a connecting strip is provided above the block, an electric push rod is provided above the connecting strip, and the end of the electric push rod is fixedly connected to the inner wall of the oil storage box.

[0007] Preferably, the electric actuator has a preset time interval for top retraction, and the position of the nozzle is on the same vertical line as the center area of ​​the wheel.

[0008] Preferably, the side of the oil storage box is provided with a labeling liquid box for storing the labeling liquid. Each labeling liquid box has an independent liquid valve above the spray outlet. The liquid valve is electrically connected to the pressure sensor through the system control center. When the pressure sensor detects an abnormal pressure, the corresponding liquid valve will release the labeling liquid to the surface of the wire rope.

[0009] Preferably, the traction machine has a fixing rod on its side, and the fixing rod has multiple sleeves on its side, with the inner wall of the sleeves in contact with the outer wall of the wire rope.

[0010] Preferably, the jacket includes a rubber portion inside, which is elastic and located in the central region of the disc.

[0011] This utility model has at least the following beneficial effects:

[0012] This invention employs a split-disc design. The spacers between each disc monitor the deflection pressure of each wire rope in real time. Data is transmitted to the system control center via pressure sensors. When an abnormal tension is detected in a wire rope, the system immediately triggers an early warning mechanism. This design not only enables independent monitoring of the tension of each wire rope but also accurately locates the abnormal position, effectively avoiding the errors and omissions caused by overall detection in traditional methods. Furthermore, the device utilizes an oil reservoir structure controlled by an electrically operated push rod to achieve timed lubrication maintenance of the disc's central area. The lubrication system and the detection system are linked; when an abnormal pressure is detected in a specific disc area, the system prioritizes lubrication of that area, thereby reducing the risk of tension deviation caused by uneven friction. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the oil storage box and standard solution box in this utility model;

[0015] Figure 3 This utility model Figure 2 Enlarged view of the structure of region A in the middle;

[0016] Figure 4 This is another schematic diagram of the overall structure of this utility model;

[0017] Figure 5 This utility model Figure 4 Enlarged view of the structure of region B in the middle.

[0018] In the diagram: 1-wheel; 2-main shaft; 3-traction machine; 4-diaphragm; 5-pressure sensor; 6-oil reservoir; 7-stop block; 8-connecting strip; 9-electric push rod; 10-standard liquid box; 11-liquid valve; 12-fixed rod; 13-jacket; 14-rubber part. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-5 This utility model provides a technical solution: an automatic detection and early warning device for elevator wire rope tension, comprising multiple wheel discs 1, a main shaft 2 on the inner wall of the wheel disc 1, and a traction machine 3 at the end of the main shaft 2. The power equipment inside the traction machine 3 drives the main shaft 2 and the wheel discs 1 to rotate, thereby assisting the transmission effect of the wire rope on the wheel disc 1. Each wheel disc 1 is used to traction different wire ropes. A spacer 4 is provided between adjacent wheel discs 1. The spacer 4 is also located on the outer wall of the main shaft 2 and rotates with it. Multiple pressure sensors 5 are fixedly connected to the spacer 4. The pressure sensors 5 are located in the side area where the wire rope is wrapped around the wheel disc 1. If the wire rope deflects within the wheel disc 1, the pressure sensor 5 will receive the pressure data immediately and then send it to the control center, achieving the early warning effect of real-time monitoring of wire rope tension data.

[0021] Furthermore, the traction machine 3 has an oil storage box 6 on its side and is fixedly connected to it. The oil storage box 6 has multiple spray nozzles inside, and a block 7 is provided inside the oil storage box 6 to block the spray nozzles. A connecting strip 8 is provided above the block 7 and is fixedly connected to it. An electric push rod 9 is provided above the connecting strip 8 and is fixedly connected to it. The end of the electric push rod 9 is fixedly connected to the inner wall of the oil storage box 6. The electric push rod 9 has a preset time interval for the top retraction. The position of the spray nozzle is on the same vertical line as the center area of ​​the wheel 1. The electric push rod 9 can drive the connecting strip 8 and multiple blocks 7 to lift, thereby allowing the oil in the oil storage box 6 to flow downward from the spray nozzles and drip precisely onto the center area of ​​the wheel 1 used to traction the wire rope. As the wheel 1 rotates, the entire wire rope is gradually wetted, making the wire rope transmission process smoother.

[0022] Meanwhile, the lubrication system can also be linked with the detection system. When an abnormal pressure is detected in a specific area of ​​the wheel 1, the system will prioritize lubrication of that area, thereby reducing the risk of tension deviation caused by uneven friction.

[0023] In addition, a labeling liquid box 10 for storing labeling liquid is provided on the side of the oil storage box 6. The end of the labeling liquid box 10 is fixedly connected to the traction machine 3. Each labeling liquid box 10 has an independent liquid valve 11 above its spray outlet. The liquid valve 11 is electrically connected to the pressure sensor 5 through the system control center. When the pressure sensor 5 detects an abnormal pressure, the corresponding liquid valve 11 will release the labeling liquid onto the surface of the wire rope. This helps workers quickly locate the wire rope with abnormal tension, carry out timely maintenance, and avoid safety hazards caused by uneven wire rope tension.

[0024] The traction machine 3 has a fixed rod 12 on its side, which is fixedly connected to the rod. Multiple clamps 13 are fixedly connected to the rod 12 on its side. The inner wall of each clamp 13 contacts the outer wall of the wire rope. The interior of each clamp 13 includes a rubber section 14, which is elastic and located in the central area of ​​the pulley 1. The compression of the wire rope by the rubber section 14 can clean excess oil and impurities from its surface, and also slightly correct the transmission direction of the wire rope, maintaining its normal vertical transmission direction and reducing the possibility of deviation.

[0025] Working principle:

[0026] When the automatic elevator wire rope tension detection and early warning device is activated, the internal power unit of the traction machine 3 starts, driving the main shaft 2 to rotate. The main shaft 2 then drives the pulley 1 to rotate, thereby realizing the transmission of the wire rope on the pulley 1. During the transmission process, the pressure sensor 5, located in the spacer 4 between adjacent pulleys 1, monitors the pressure data in real time on the area where the wire rope is wrapped around the side of the pulley 1. Once the wire rope deflects within the pulley 1, the pressure sensor 5 will immediately receive abnormal pressure data and quickly send the data to the control center.

[0027] After receiving abnormal data, the control center will activate the early warning mechanism to alert staff. On the other hand, if the pressure abnormality reaches the set threshold, the control center will control the liquid valve 11, which is electrically connected to the pressure sensor 5, to open, so that the marking liquid in the marking liquid box 10 is released onto the surface of the steel wire rope with abnormal tension, making it easier for staff to quickly locate the problematic steel wire rope.

[0028] Simultaneously, the electric push rod 9 operates according to a preset top retraction time interval, driving the connecting bar 8 and the stop block 7 to rise. This causes the oil in the oil reservoir 6 to flow out from the spray nozzle and precisely drip onto the center area of ​​the wheel 1. As the wheel 1 rotates, the entire wire rope is wetted, ensuring smooth wire rope transmission. Furthermore, the clamp 13 on the fixed rod 12 and its internal rubber part 14 clean excess oil and impurities from their surfaces during wire rope transmission, and slightly correct the wire rope's transmission direction, reducing the possibility of deviation and ensuring stable elevator wire rope tension, thus guaranteeing safe elevator operation.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic early warning device for detecting the tension of elevator wire ropes, comprising multiple discs (1), characterized in that: The inner wall of the wheel (1) is provided with a main shaft (2), and the end of the main shaft (2) is provided with a traction machine (3). The wheel (1) is used for traction of the wire rope. A spacer (4) is provided between adjacent wheel (1). Multiple pressure sensors (5) are provided inside the spacer (4). The pressure sensors (5) are located in the side area where the wire rope is wound around the wheel (1).

2. The early warning device for automatically detecting elevator wire rope tension according to claim 1, characterized in that: The side of the traction machine (3) is provided with an oil storage box (6). The inside of the oil storage box (6) has multiple spray nozzles. The inside of the oil storage box (6) is provided with a block (7) to block the spray nozzles. A connecting strip (8) is provided above the block (7). An electric push rod (9) is provided above the connecting strip (8). The end of the electric push rod (9) is fixedly connected to the inner wall of the oil storage box (6).

3. The early warning device for automatically detecting elevator wire rope tension according to claim 2, characterized in that: The electric push rod (9) has a preset time interval for top retraction, and the position of the nozzle is on the same vertical line as the center area of ​​the wheel (1).

4. The early warning device for automatically detecting elevator wire rope tension according to claim 3, characterized in that: The side of the oil storage box (6) is provided with a labeling liquid box (10) for storing the labeling liquid. Each labeling liquid box (10) has an independent liquid valve (11) above the spray outlet. The liquid valve (11) is electrically connected to the pressure sensor (5) through the system control center. When the pressure sensor (5) detects an abnormal pressure, the corresponding liquid valve (11) will release the labeling liquid to the surface of the wire rope.

5. The early warning device for automatically detecting elevator wire rope tension according to claim 4, characterized in that: The traction machine (3) has a fixing rod (12) on its side, and the fixing rod (12) has multiple sleeves (13) on its side. The inner wall of the sleeve (13) is in contact with the outer wall of the wire rope.

6. The early warning device for automatically detecting elevator wire rope tension according to claim 5, characterized in that: The interior of the jacket (13) includes a rubber part (14), which is elastic and located in the central region of the disc (1).

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