A method for correcting the winding diameter of a deep-well single-rope winding hoist

Abstract

A kind of deep well single-rope winding hoist winding diameter correction method, it is related to mine equipment technical field, including photoelectric distance sensor A, photoelectric distance sensor B and controller, photoelectric distance sensor A, photoelectric distance sensor B are fixedly installed respectively in the upper of the left and right two ends steel wire rope winding parts of reel, the distance of left and right two photoelectric distance sensors to the steel wire rope of reel surface is continuously detected in the process that lifting container runs to well bottom at well mouth, according to the data detected by photoelectric distance sensor and operating direction, the real-time winding layer of steel wire rope is accurately judged, and then the actual dynamic diameter of hoist steel wire rope winding on reel is calculated, to correct the depth calculation coefficient in PLC software in real time, so that container position detection is accurate, accurate control and protection are realized;The present application detects instantaneously, accurately, reliably, and installation and debugging are simple and convenient, maintenance cost is low, and practicality is good.

Description

Technical Field

[0001] This invention relates to the field of mining equipment technology, and in particular to a method for correcting the diameter of a deep well single-rope winding hoist. Background Technology

[0002] As is widely known, hoists are the vital link between the surface and underground of mines, primarily used for transporting personnel, crushed stone, and materials. Winding hoists are driven by a motor-driven drum, which in turn drives a steel wire rope. The wire rope connects to a container, causing the hoist to move up and down within the shaft. Operating depths can reach over 1000 meters. In section 6.4.8.3 of GB16423-2020 "Safety Regulations for Metal and Non-metal Mines," the number of layers of wire rope wound on the drum of a winding hoist should comply with the following regulations: for drums with parallel zigzag grooves and interlayer transition devices: no more than 3 layers when hoisting personnel; no more than 4 layers when used exclusively for hoisting materials. However, for hoists in deep shafts over 1000 meters, the number of winding layers... Typically, the number of winding layers reaches 3 or 4. Due to the multiple layers of wire rope winding, when using an encoder for position calculation, the actual diameter of each layer changes as the number of winding layers changes. Correction of the winding diameter is necessary because, during the lifting process of a deep well single-rope winding hoist, as the number of winding layers increases, the winding diameter is no longer the drum diameter. This causes errors in the values ​​calculated by the encoder at the drum shaft end based on a constant winding diameter. These errors accumulate during operation, resulting in inaccurate detection of the container position in the well shaft. It becomes impossible to accurately, in real-time, and reliably detect the wire rope winding diameter during the operation of the single-rope winding hoist, thus affecting subsequent precise control and protection measures. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention discloses a method for correcting the diameter of a deep well single-rope winding hoist.

[0004] To achieve the aforementioned objective, the present invention employs the following technical solution:

[0005] A method for correcting the diameter of a deep well single-rope winding hoist includes an electro-optical distance sensor A, an electro-optical distance sensor B, and a controller, specifically comprising the following steps:

[0006] S1. Fix photoelectric distance sensor A and photoelectric distance sensor B above the wire rope winding parts at the left and right ends of the drum, respectively. Photoelectric distance sensor A is used to detect the distance S1 from the wire rope on the left end surface of the drum, and photoelectric distance sensor B is used to detect the distance S2 from the wire rope on the right end surface of the drum.

[0007] S2. The lifting container of the single-rope winding hoist starts to be lowered at the wellhead position. When the lifting container reaches the bottom of the well, it stops running. Photoelectric distance sensor A and photoelectric distance sensor B continuously send the collected measurement data to the controller throughout the entire lowering process of the lifting container. The staff analyzes the measurement data based on the logic design of the number of wire rope winding layers to determine the number of wire rope winding layers.

[0008] The logical algorithm for determining the number of layers of wire rope winding is as follows:

[0009] A. S1=L3, S2=L4, the number of winding layers of the wire rope N=4;

[0010] B. S2=L2, S1=L3, the number of winding layers of the wire rope N=3;

[0011] C, S1=L1, S2=L2, the number of winding layers of the wire rope N=2;

[0012] D, S2=L0, S1=L1, the number of winding layers of the wire rope N=1;

[0013] Wherein, L1-L4 are the measurement distances when winding 1-4 layers respectively;

[0014] S3. By editing the above algorithm within the controller, the number of wire rope winding layers N can be detected in real time. The actual dynamic diameter D of the hoist can be obtained by defining the following algorithm within the controller's control unit. D；

[0015] The specific algorithm is as follows:

[0016] A. When N=4, D D =D+6D1

[0017] B. When N=3, D D =D+4D1

[0018] When C and N=2, D D =D+2D1

[0019] When D and N=1, D D =D

[0020] Where D is the original diameter of the drum, and D1 is the diameter of the wire rope;

[0021] S4. The hoist is run again. The control unit analyzes the number of wire rope winding layers corresponding to the measurement data based on the real-time measurement data of photoelectric distance sensor A and photoelectric distance sensor B, and calculates the actual dynamic winding diameter of the hoist wire rope through the algorithm defined in the control unit.

[0022] Due to the adoption of the above technical solution, the present invention has the following beneficial effects:

[0023] The deep well single-rope winding hoist diameter correction method of this invention continuously detects the distance between the left and right photoelectric distance sensors and the wire rope on the drum surface during the hoisting container's movement from the wellhead to the bottom of the well. Based on the running direction and the data detected by the photoelectric distance sensors, the real-time winding layer number of the wire rope is accurately determined, and then the actual dynamic diameter of the hoist wire rope wound on the drum is calculated. This allows for real-time correction of the depth calculation coefficient in the PLC software, ensuring accurate container position detection and achieving precise control and protection. This invention provides immediate, accurate, and reliable detection, and is simple and convenient to install and debug, with low maintenance costs and good practicality. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention.

[0025] Figure 2 This is a flowchart of the process of the present invention.

[0026] In the diagram: 1. Photoelectric distance sensor A; 2. Photoelectric distance sensor B; 3. Drum; 4. Head sheave; 5. Wire rope; 6. Controller; 7. Lifting container. Detailed Implementation

[0027] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0028] Combined with appendix Figure 1-2 The method for correcting the diameter of a deep well single-rope winding hoist includes an electro-optical ranging sensor A1, an electro-optical ranging sensor B2, and a controller 6, and specifically includes the following steps:

[0029] S1. Fix photoelectric distance sensor A1 and photoelectric distance sensor B2 above the winding parts of the wire rope 5 at the left and right ends of the drum 3, respectively. Photoelectric distance sensor A1 is used to detect the distance S1 from the wire rope 5 on the left end surface of the drum 3, and photoelectric distance sensor B2 is used to detect the distance S2 from the wire rope 5 on the right end surface of the drum 3.

[0030] S2. The lifting container 7 of the single-rope winding hoist begins to be lowered at the wellhead position. During the entire lowering process of the lifting container 7, the photoelectric distance sensor A1 and the photoelectric distance sensor B2 continuously send the collected measurement data to the controller 6. The staff analyzes the number of winding layers of the wire rope 5 corresponding to the measurement data based on the logic algorithm of the number of winding layers of the wire rope 5.

[0031] The logical design for the 5-layer winding of the steel wire rope is as follows:

[0032] A. S1=L3, S2=L4, the number of winding layers of the wire rope N=4;

[0033] B. S2=L2, S1=L3, the number of winding layers of the wire rope N=3;

[0034] C, S1=L1, S2=L2, the number of winding layers of the wire rope N=2;

[0035] D, S2=L0, S1=L1, the number of winding layers of the wire rope N=1;

[0036] Wherein, L1-L4 are the measurement distances when winding 1-4 layers respectively;

[0037] S3. By editing the above logic design algorithm within controller 6, the number of winding layers N of wire rope 5 can be detected in real time. By defining the following algorithm within the control unit of controller 6, the actual dynamic diameter D of the hoist can be obtained. D；

[0038] The specific algorithm is as follows:

[0039] A. When N=4, D D =D+6D1

[0040] B. When N=3, D D =D+4D1

[0041] When C and N=2, D D =D+2D1

[0042] When D and N=1, D D =D

[0043] Where D is the original diameter of the drum, and D1 is the diameter of the wire rope;

[0044] S4. The hoist is run again. The control unit analyzes the number of winding layers of the wire rope 5 corresponding to the measurement data based on the real-time measurement data of photoelectric distance sensor A and photoelectric distance sensor B, and calculates the actual dynamic winding diameter of the wire rope 5 of the hoist through the algorithm defined in the control unit.

[0045] The following embodiments all take the example of the wire rope 5 being wound up to 4 layers and the lifting container 7 being at the ground wellhead. At this time, the wire rope is wound to the maximum position: 3 layers are wound on the left side and 4 layers are wound on the right side. When the number of winding layers is 1, the first layer is wound from the left to the top right. When the number of winding layers is 2, the wire rope is wound from the right side, pressing the first layer, to the left to the top left. And so on, up to 4 layers are wound. Example

[0046] In this embodiment, the original diameter of the drum is 2500mm, and the diameter of the wire rope is 26mm;

[0047] The motor drives the drum 3, and the wire rope 5 on the drum 3 passes around the sheave 4, driving the lifting container 7 at its lower end to move up and down inside the shaft. Photoelectric distance sensors A1 and B2 are fixedly installed on brackets on the locomotive house wall, 3000mm above the winding points of the wire rope 5 at the left and right ends of the drum 3. In actual installation, the distance from the installation positions of photoelectric distance sensors A1 and B2 to the surface of the drum 3 only needs to be within the sensor's measuring range. The lifting container 7 of the single-rope winding hoist begins to descend from the shaft opening and stops at the bottom of the shaft. Throughout the descent, the controller 6 continuously collects the measurement data from photoelectric distance sensors A1 and B2. Since the distance measured by photoelectric distance sensors A1 and B2 remains constant when the wire rope 5 is wound in the same layer, the data for each layer is extracted as follows: L0 = 3000mm, L1 = 2974mm, L2 = 2948mm. L3=2922mm, L4=2896mm; The hoist is run again. When the hoisting container reaches a point between the wellhead and the bottom, the distances from the photoelectric distance sensor A to the wire rope on the left end of the drum, measured by the controller, are S1=2922mm=L3, and the distances from the photoelectric distance sensor B to the wire rope on the right end of the drum, measured by the controller, are S2=2948mm=L2. Based on the logic algorithm for the number of wire rope layers in the controller, the current number of wire rope layers is calculated to be N=3. The controller then calculates the actual dynamic diameter D of the hoist. D The result is 2500 + 4 × 26 = 2604 mm. Example

[0048] The original diameter of the drum is 3000mm, and the diameter of the wire rope is 32mm;

[0049] The motor drives the drum 3, and the wire rope 5 on the drum 3 passes around the sheave 4, driving the lifting container 7 at its lower end to move up and down inside the shaft. Photoelectric distance sensors A1 and B2 are fixedly installed on brackets on the wall of the locomotive house, 3000mm above the winding points of the wire rope 5 at the left and right ends of the drum 3. In actual installation, the distance from the installation positions of photoelectric distance sensors A1 and B2 to the surface of the drum 3 only needs to be within the sensor's measuring range. The lifting container 7 of the single-rope winding hoist begins to descend from the shaft opening and stops at the bottom. Throughout the process, the controller 6 continuously collects the measurement data from photoelectric distance sensors A1 and B2. Since the distance measured by photoelectric distance sensors A1 and B2 remains constant when the wire rope 5 is wound in the same layer, the data for each layer is extracted as follows: L0 = 3000mm, L1 = 2968mm, L2 = 2936mm. L3=2904mm, L4=2872mm; The hoist is run again. When the hoisting container reaches a point between the wellhead and the bottom, the distances from the photoelectric distance sensor A1 to the left end surface of the drum (S1=2968mm=L1) and from the photoelectric distance sensor B2 to the right end surface of the drum (S2=2936mm=L2) are collected by the controller. Based on the logic algorithm for the number of wire rope layers in the controller, the current number of wire rope layers is N=2. The actual dynamic diameter D of the hoist is then calculated by the controller. D The result is 3000 + 2 × 32 = 3064 mm.

[0050] The parts of this invention not described in detail are prior art.

[0051] The embodiments selected herein for the purpose of disclosing the inventive objectives are currently considered suitable; however, it should be understood that the invention is intended to include all variations and modifications of the embodiments that fall within the scope of this concept and invention.

Claims

1. A method for correcting the diameter of a deep well single-rope winding hoist, comprising an electro-optical distance sensor A, an electro-optical distance sensor B, and a controller, characterized in that: Specifically, the following steps are included: S1. Fix photoelectric distance sensor A and photoelectric distance sensor B above the wire rope winding parts at the left and right ends of the drum, respectively. Photoelectric distance sensor A is used to detect the distance S1 from the wire rope on the left end surface of the drum, and photoelectric distance sensor B is used to detect the distance S2 from the wire rope on the right end surface of the drum. S2. The lifting container of the single-rope winding hoist starts to be lowered at the wellhead position. When the lifting container reaches the bottom of the well, it stops running. Photoelectric distance sensor A and photoelectric distance sensor B continuously send the collected measurement data to the controller throughout the entire lowering process of the lifting container. The staff analyzes the measurement data based on the logic design of the number of wire rope winding layers to determine the number of wire rope winding layers. The logical algorithm for determining the number of layers of wire rope winding is as follows: A. S1=L3, S2=L4, the number of winding layers of the wire rope N=4; B. S2=L2, S1=L3, the number of winding layers of the wire rope N=3; C, S1=L1, S2=L2, the number of winding layers of the wire rope N=2; D, S2=L0, S1=L1, the number of winding layers of the wire rope N=1; Wherein, L1-L4 are the measurement distances when winding 1-4 layers respectively; S3. By editing the above algorithm within the controller, the number of wire rope winding layers N can be detected in real time. The actual dynamic diameter D of the hoist can be obtained by defining the following algorithm within the controller's control unit. D； The specific algorithm is as follows: A. When N = 4, D D = D + 6D1 B. When N=3, D D =D+4D1 When C and N=2, D D =D+2D1 When D and N=1, D D =D Where D is the original diameter of the drum, and D1 is the diameter of the wire rope; S4. The hoist is run again. The control unit analyzes the number of wire rope winding layers corresponding to the measurement data based on the real-time measurement data of photoelectric distance sensor A and photoelectric distance sensor B, and calculates the actual dynamic winding diameter of the hoist wire rope through the algorithm defined in the control unit.

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