Emergency lifting device for emergency rescue of vertical shaft

Abstract

The utility model discloses a vertical shaft rescue emergency lifting device which comprises a derrick platform, a rigid cage guide, a variable-frequency stabilizer, a main rope, a bucket and a rain umbrella assembly. The derrick platform is located above the shaft, a plurality of guide wheels are installed on the derrick platform, the variable-frequency stabilizer is connected with a main rope, the main rope bypasses the guide wheels and then is connected with a bucket moving up and down along a rigid cage guide, the rigid cage guide is installed in the shaft, the rain umbrella assembly is located above the bucket, the rain umbrella assembly is fixedly connected with the main rope, and the two ends of the rain umbrella assembly are slidably connected with the rigid cage guide. The lifting device has the advantages that the problem of ascending and descending of shaft emergency rescue constructors and materials is effectively solved, and the shaft emergency rescue construction requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of emergency rescue technology in coal mines, and more particularly to an emergency hoisting device for vertical shaft rescue. Background Technology

[0002] Emergency rescue in coal mines is an extremely important construction task. According to emergency rescue requirements, preparedness for handling various emergencies must be maintained at all times. Currently, when carrying out special construction tasks such as water rescue in shafts and the dismantling and restoration of shaft hoisting systems, the most critical issue is how to solve the problems of personnel moving up and down the shaft and material transport when there is no hoisting system.

[0003] In the past, during construction, six sets of 25t stabilizing cars and φ3.5m single-drum hoists were required to be set up around the wellhead. The hoisting platform of the well was suspended by the steel wire rope of the stabilizing car, and the φ3.5m single-drum hoisting winch was used for personnel and material transportation. The main disadvantages are: (1) Hoisting winches and stabilizing cars need to be set up at the wellhead, guide sheaves need to be set up on the derrick, and hoisting platforms need to be set up inside the well. The process is complicated, the workload is large, and the construction cost is high. (2) There are many pieces of equipment to be set up at the wellhead and in the well. The construction preparation time is long and cannot meet the efficiency requirements of emergency rescue construction in the well. (3) The cross-section of the well equipment structure affects the upward and downward movement of the hoisting platform.

[0004] Therefore, traditional emergency rescue work is costly, inefficient, and poses significant safety hazards, making it difficult to guarantee the safety and efficiency of emergency rescue operations.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The technical problem to be solved by this utility model is: how to solve the problem that the traditional layout method is complicated and labor-intensive when there is no lifting system in the cylinder, and it is difficult to meet the efficiency of emergency rescue.

[0007] This utility model solves the above-mentioned technical problems through the following technical means:

[0008] The emergency hoisting device for vertical shaft rescue includes a derrick platform, a rigid guide rail, a frequency converter stabilizing mechanism, a main rope, a bucket, and a rain shower assembly. The derrick platform is located above the shaft, and multiple guide wheels are installed on the derrick platform. The frequency converter stabilizing mechanism is connected to the main rope. After the main rope passes around the guide wheels, it is connected to the bucket, which moves up and down along the rigid guide rail. The rigid guide rail is installed inside the shaft. The rain shower assembly is located above the bucket. The rain shower assembly is fixedly connected to the main rope and its two ends are slidably connected to the rigid guide rail.

[0009] This utility model utilizes guide wheels installed on a derrick platform to change the direction of the main rope. The derrick platform serves as the main frame of the hoisting system, and a rigid guide rail serves as the channel for the bucket, solving the problem of bucket guidance in the well shaft. A variable frequency stabilizer is used as a temporary hoisting device, and the bucket is used to transport personnel and materials. The installation is rapid, the construction efficiency is high, and the problem of long equipment setup time is solved. It effectively solves the problem of personnel and materials being moved up and down in well shaft emergency rescue construction, meeting the needs of emergency rescue construction in well shafts.

[0010] Preferably, the rain umbrella assembly includes a rain umbrella body and a mounting frame, the rain umbrella body is connected to the middle part of the mounting frame, and the two ends of the mounting frame are slidably connected to rigid channels.

[0011] Preferably, the two ends of the mounting frame are connected to concave sliding shoes, which are slidably connected to the rigid cannula.

[0012] Because the original rain umbrella body was small in size, a special mounting frame was made, and sliding shoes were connected to both ends of the mounting frame to allow the rain umbrella components to move up and down with the bucket, achieving the effect of sheltering from wind and rain.

[0013] Preferably, it also includes a relief hook, which is connected to the end of the main rope, and the other end of the relief hook is connected to the bucket.

[0014] The unloading hook ensures the reliability of the connection when lifting the bucket.

[0015] Preferably, there are at least four guide wheels, arranged in at least two layers, upper and lower.

[0016] Preferably, the main rope is at least 1000 meters long.

[0017] Preferably, the linear velocity of the steel wire rope of the variable frequency stabilizer is 0.1-0.5 m / s.

[0018] The variable frequency stabilizer in this invention has a high linear speed, which can meet the requirements of emergency rescue and disaster relief.

[0019] Preferably, the capacity of the bucket is at least 1.5 m3.

[0020] Preferably, a rigid square tube is added to the rigid cannula located at the wellhead to extend the rigid cannula.

[0021] If the rigid guideway is not long enough, rigid square tubes can be added to extend the rigid guideway, meet the normal operation guidance of the rain umbrella, and ensure the use of the entire lifting system.

[0022] Preferably, the platform is articulated at the wellhead.

[0023] A hinged platform is connected at the wellhead. The platform can be flipped to support people or objects, ensuring that the hoisting bucket can move up and down and meet usage requirements.

[0024] The advantages of this utility model are:

[0025] This utility model utilizes guide wheels installed on a derrick platform to change the direction of the main rope. The derrick platform serves as the main frame of the hoisting system, and a rigid guide rail serves as the channel for the bucket, solving the problem of bucket guidance in the well shaft. A variable frequency stabilizer is used as a temporary hoisting device, and the bucket is used to transport personnel and materials. The installation is rapid, the construction efficiency is high, and the problem of long equipment setup time is solved. It effectively solves the problem of personnel and materials being moved up and down in well shaft emergency rescue construction, meeting the needs of emergency rescue construction in well shafts.

[0026] Because the original rain umbrella body is small in size, a special mounting frame was made, and sliding shoes were connected to both ends of the mounting frame to allow the rain umbrella components to move up and down with the bucket, achieving the effect of sheltering from wind and rain and ensuring the normal operation of the rain umbrella.

[0027] The unloading hook ensures the reliability of the connection when lifting the bucket.

[0028] The variable frequency stabilizer in this invention has a high linear speed, which can meet the requirements of emergency rescue and disaster relief. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the emergency hoisting device for vertical shaft rescue according to an embodiment of this utility model;

[0030] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0031] Figure 3 This is a top view of the forest umbrella component of this utility model;

[0032] Numbering on the map:

[0033] 1. Derrick platform; 2. Rigid guideway; 3. Variable frequency stabilizer; 4. Main rope; 5. Bucket; 6. Rain shower assembly; 61. Rain shower body; 62. Mounting frame; 621. Slipper. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] like Figure 1 , Figure 2As shown, the emergency hoisting device for vertical shaft rescue includes a derrick platform 1, a rigid guide rail 2, a frequency converter stabilizing mechanism 3, a main rope 4, a bucket 5, and a rain shower assembly 6. The derrick platform 1 is located above the shaft, and multiple guide wheels 11 are installed on the derrick platform 1. The frequency converter stabilizing mechanism 3 is connected to the main rope 4, and the main rope 4 passes around the guide wheels 11 and then connects to the bucket 5. The rigid guide rail 2 inside the original shaft equipment serves as the channel for the bucket 5 to move up and down. The rain shower assembly 6 is connected to the main rope 4 above the bucket 5, and sliding shoes 621 are connected to both sides of the rain shower assembly 6. The sliding shoes 621 can slide along the rigid guide rail 2.

[0036] Specifically, the derrick platform 1 can utilize an existing permanent derrick platform, and at least four sets of φ1m guide wheels 11 can be arranged on the platform of the derrick platform 1 for changing the direction of the main rope 4. The guide wheels 11 are arranged at intervals, or at least in two layers.

[0037] This embodiment utilizes the original rigid guideway 2 in the well shaft as a guide for the hoisting bucket 5, solving the well shaft bucket guidance problem. If the rigid guideway 2 used in practice is not long enough, a rigid square tube can be added to the inlet / outlet side of the vehicle. The rigid square tube is connected to the rigid guideway 2 to extend the length of the entire passage, ensuring that the rain umbrella assembly 6 and the bucket 5 can pass smoothly.

[0038] In this embodiment, the variable frequency stabilizer 3 is a 25t variable frequency stabilizer. In this embodiment, only one 25t variable frequency stabilizer is arranged on one side of the wellhead, which solves the problem of long equipment arrangement time, solves the problem of hoisting personnel and materials in the vertical shaft emergency rescue, and meets the efficiency requirements of shaft emergency construction.

[0039] In this embodiment, the wire rope linear speed of the variable frequency stabilizer 3 needs to reach 0.1-0.5 m / s to increase the vertical speed of the bucket 5 and meet the actual needs of emergency rescue. Specifically, the main parameters of the variable frequency stabilizer 3 are as follows:

[0040] Maximum static tension of the wire rope: 250kN;

[0041] Rope capacity of the drum: 1300m;

[0042] Motor model: YZR355L2-8, voltage 380V, power 160kW;

[0043] Gearbox model: YKS765, speed ratio: 35.0 / 1;

[0044] Wire rope (main rope) linear speed: 0.1-0.5m / s.

[0045] In this embodiment, 1000 meters of 18*7-1870-φ40 steel wire rope is used as the main rope 4, and the main rope 4 is wound on the frequency converter stabilizer 3.

[0046] In this embodiment, the capacity of the bucket 5 is 1.5m.3 The outer diameter of the bucket is 1280mm, and the height of the bucket opening is 1280mm. The appropriate bucket size (5) can be selected based on the actual situation.

[0047] In this embodiment, as Figure 2 , Figure 3 As shown, the rain umbrella assembly 6 includes a rain umbrella body 61 and a mounting frame 62. The mounting frame 62 is a rectangular frame with concave sliding shoes 621 connected to both ends of the rectangular frame. The sliding shoes 621 are engaged with the rigid canal 2. During the pulling of the main rope 4, the sliding shoes 621 can slide up and down the rigid canal 2, which in turn pulls the rain umbrella assembly 6 to move up and down. The rain umbrella body 61 is fixed in the middle of the mounting frame 62, and the mounting frame 62 is fixedly connected to the main rope 4 by means of tension. The rain umbrella body 61 can provide rain protection for the personnel and materials in the bucket 5 below.

[0048] Example 2:

[0049] Based on Embodiment 1, this embodiment also uses a relief hook 7 to connect the bucket 5 and the main rope 4. In this embodiment, the relief hook 7 uses an 11t relief hook to ensure reliable connection of the lifting bucket 5.

[0050] It also includes a centralized control console, which includes a PLC main controller, an HMI human-machine interface, etc., to facilitate the control of the variable frequency vehicle stabilizer 3.

[0051] The arrangement process of the emergency hoisting device for vertical shaft rescue in Embodiments 1 and 2 is as follows:

[0052] (1) Variable frequency vehicle stabilization arrangement:

[0053] ① Install one 25t frequency converter stable car at the wellhead. After the installation is completed, set up a warning fence and set up a rainproof canopy for the frequency converter stable car and the central control console; ② Set up a centralized power distribution cabinet on site for power distribution and control power distribution installation; After the frequency converter stable car 3 is installed and tested without problems, wind 1000 meters of 18*7-1870-φ40 steel wire rope around the frequency converter stable car 3 as the main rope.

[0054] (2) Installation of derrick guiding device:

[0055] Four sets of φ1m guide wheel devices are installed on the derrick platform 1 for guidance.

[0056] (3) Wellhead and inlet / outlet platforms:

[0057] (4) The bottom of the well is fully enclosed with 10# channel steel and patterned steel plate; the wellhead is equipped with a double-layer plate arrangement and a hinge device. The double-layer plate platform can be flipped open to meet the normal passage requirements of the bucket.

[0058] (5) Installation of the rain shower assembly, bucket, and load-bearing hook:

[0059] The end of the main rope 4 is connected to the unloading hook 7, the bottom of the unloading hook 7 is connected to the bucket 5, and the rain umbrella assembly is connected to the main rope and slidably connected to the rigid tank channel 2.

[0060] (6) Variable frequency vehicle stabilization debugging:

[0061] After the variable frequency lifting and stabilizing vehicle setup is completed, the stabilizing disc brake, depth indicator, motor brake, stabilizing variable frequency control, and operating console are fully debugged. The entire lifting system is then fully tested to ensure safety and reliability.

[0062] In this embodiment, the parameters of the variable frequency stabilizer 3 are optimized, and the original derrick platform 1 and rigid guideway 2 are used to guide the bucket 5. This embodiment successfully solves the problem of personnel and materials entering and exiting the well without a hoisting system. Simultaneously, reliable measures are taken to address issues such as the redirection of the hoisting rope on the temporary hoisting system and the guidance of the temporary hoisting bucket within the well. This ensures rapid, efficient, and safe construction during well rescue operations.

[0063] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A vertical shaft emergency hoisting device, characterized in that, It includes a derrick platform, a rigid guide rail, a variable frequency stabilizer, a main rope, a bucket, and a rain shower assembly. The derrick platform is located above the shaft, and multiple guide wheels are installed on the derrick platform. The variable frequency stabilizer is connected to the main rope. After the main rope passes around the guide wheels, it is connected to the bucket that moves up and down along the rigid guide rail. The rigid guide rail is installed inside the shaft. The rain shower assembly is located above the bucket. The rain shower assembly is fixedly connected to the main rope and its two ends are slidably connected to the rigid guide rail.

2. The emergency hoisting device for vertical shaft rescue according to claim 1, characterized in that, The rain umbrella assembly includes a rain umbrella body and a mounting frame. The rain umbrella body is connected to the middle of the mounting frame, and the two ends of the mounting frame are slidably connected to rigid channels.

3. The emergency hoisting device for vertical shaft rescue according to claim 2, characterized in that, The mounting frame is connected to concave sliding shoes at both ends, and the sliding shoes are slidably connected to the rigid tank channel.

4. The emergency hoisting device for vertical shaft rescue according to claim 1, characterized in that, It also includes a relief hook, which is connected to the end of the main rope, and the other end of the relief hook is connected to the bucket.

5. The emergency hoisting device for vertical shaft rescue according to claim 1, characterized in that, The guide wheels are at least four in number and arranged in at least two layers, upper and lower.

6. The emergency hoisting device for vertical shaft rescue according to claim 1, characterized in that, The main rope is at least 1000 meters long.

7. The emergency hoisting device for vertical shaft rescue according to claim 1, characterized in that, The linear velocity of the steel wire rope of the variable frequency stabilizer is 0.1-0.5 m / s.

8. The emergency hoisting device for vertical shaft rescue according to claim 1, characterized in that, The capacity of the bucket is at least 1.5m. 3 .

9. The emergency hoisting device for vertical shaft rescue according to claim 1, characterized in that, Rigid square tubing is added to the rigid canal at the wellhead to extend the rigid canal.

10. The emergency hoisting device for vertical shaft rescue according to claim 1, characterized in that, A hinged platform is attached at the wellhead.

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