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CN-121994616-A - Mining blast well explosion vent impact resistance detection device

CN121994616ACN 121994616 ACN121994616 ACN 121994616ACN-121994616-A

Abstract

The invention discloses an impact resistance detection device for an explosion-proof door of a mine air shaft, which relates to the technical field of mine material detection tools and comprises a detection table, wherein a protection rod is matched with a first spring to be abutted against a manual limit area of a grapple to form a mechanical limit guarantee, only the electric limit of an electric push cylinder and the mechanical limit provided by the protection rod are released in sequence, a hammer block can be released, accidental impact caused by misoperation is avoided from the root, an impact early warning module is used for acquiring an image of a detected material in real time based on a camera, the offset angle of the profile of the material in the impact process is monitored in real time through gray processing and profile extraction technology, limit impact force is dynamically calculated and compared with current real-time impact force by combining limit stress data of similar materials in a historical database, and when the offset angle is close to or exceeds a preset threshold value, the system automatically gives early warning, and dynamically adjusts test parameters according to the impact force difference and offset relation when necessary.

Inventors

  • CHEN SHENGCHANG
  • LIU KUANKUAN

Assignees

  • 山东世纪泰达矿业装备有限公司

Dates

Publication Date
20260508
Application Date
20260123

Claims (8)

  1. 1. The mining blast well explosion vent impact resistance detection device comprises a detection table (1), wherein a driving table (2) is arranged in the middle of the top surface of the detection table (1), a placement table (3) is arranged at the front end of the detection table (1), a detection area is arranged between the two placement tables (3), a dial (4) is arranged at the front end of the top surface of the driving table (2), and a hammer block (5) is rotatably connected with the front end of the dial (4), and the mining blast well explosion vent impact resistance detection device is characterized in that a protection component for limiting the hammer block (5) is arranged on the top surface of the detection table (1); a force calculation module and an impact early warning module are arranged in the controller of the detection device; The system comprises a force calculation module, a real-time energy loss coefficient, a dynamic correction module, a power calculation module and a power control module, wherein the force calculation module calculates gravitational potential energy increment based on inherent parameters such as mass, pendulum length and the like of a hammer block, and introduces a real-time energy loss coefficient which comprehensively considers influence factors such as mechanical abrasion, lifting angle, material characteristics, component aging and the like and dynamically corrects the factors through a multi-factor product model; The system comprises an impact early warning module, a system and a system, wherein the impact early warning module is used for carrying out gray processing and contour extraction on image data and marking contour lines of impact positions, monitoring offset angles of the contour lines in the impact process in real time, comparing the offset angles with preset limit offset angles, combining limit stress of similar materials in historical data, calculating limit impact force by the system, comparing the limit impact force with current real-time impact force to obtain impact force difference, and automatically sending early warning if the offset angles are close to or reach the maximum offset angle.
  2. 2. The mining air shaft explosion door impact resistance detection device according to claim 1, wherein the data analysis steps of the force calculation module are as follows: m1, lifting angle based on collection of angle sensor Calculating gravitational potential energy increment of hammer block Performing outlier detection and preprocessing on the collected angle data, and removing data exceeding the mean value plus or minus 3 times of standard deviation to obtain effective angle data; M2, respectively calculating real-time energy loss coefficients according to factors such as mechanical abrasion, lifting angle deviation, material elastic modulus, component aging and the like And is obtained by a product model Value, substituting and calculating impact force Thereby combining the impact contact area Calculation of impact stress The dynamic correction and output of the impact parameters are realized.
  3. 3. The mining air shaft explosion door impact resistance detection device according to claim 1, wherein the data analysis steps of the force calculation module are as follows: N1, collecting an image of a measured material through a camera, carrying out gray processing and contour extraction, marking a contour line at an impact position, and monitoring an offset angle of the contour line in the impact process in real time; n2, calling the limit stress of the similar materials in the history database Combined with current impact contact area Calculating the ultimate impact force Actual impact force And (3) with Comparing and calculating the impact strength difference If the detected offset angle of the profile line is close to or exceeds the preset maximum offset angle The system automatically gives out early warning and can be based on And dynamically adjusting subsequent test parameters according to the offset angle relation.
  4. 4. The mining air shaft explosion door impact resistance detection device according to claim 1, wherein an in-place sensor (16) for detecting the swinging times of a hammer block (5) is arranged below the middle part of the front end of the driving table (2), a grapple hook (9) of an adaptive protection assembly is sleeved on the outer side of the hammer block (5), and the grapple hook (9) is provided with an automatic limiting area on one side and a manual limiting area on the other side.
  5. 5. The mining air shaft explosion door impact resistance detection device according to claim 1, wherein the protection assembly comprises a protection table (6) arranged on one side of the top surface of the driving table (2), a driving groove adapting to an automatic limiting area and a reset hole adapting to a manual limiting area are respectively formed in one side of the protection table (6), and a driving hole is formed in the front end of the reset hole.
  6. 6. The mining air shaft explosion door impact resistance detection device according to claim 5, wherein an electric pushing cylinder (7) is arranged in the driving groove, an output shaft of the electric pushing cylinder (7) is connected with a limiting rod arranged in an automatic limiting area through a coupling, the outer side of the limiting rod is abutted to the inner side of the grapple hook (9), and a protective rod (8) is slidably connected in the reset hole.
  7. 7. The mining air shaft explosion door impact resistance detection device is characterized in that a limiting block attached to the inner wall of a driving hole is arranged on the outer side of a protective rod (8), a first spring (10) arranged in the driving hole is sleeved on the outer side of the protective rod (8), the first spring (10) is arranged between the rear end of the limiting block and the driving hole, and the other end of the protective rod (8) is arranged in a manual limiting area and is abutted to the inner side face of a grapple hook (9).
  8. 8. The mining air shaft explosion door impact resistance detection device according to claim 3, wherein a positioning rod (11) is arranged on the other side of the top surface of the protection table (6), a mounting block (14) is arranged at the other end of the positioning rod (11), positioning blocks are arranged above two sides of an inner cavity of the mounting block (14), pressure sensors (15) are arranged below the two positioning blocks, an impact block (12) is connected to the inner side of the mounting block (14) in a sliding mode, sliding grooves for adapting the sliding limit of the positioning blocks are formed in two sides of the impact block (12), a second spring (13) is fixedly connected to the inner bottom surface of the sliding groove, and a laminating plate abutting against the pressure sensors (15) is fixedly connected to the other end of the second spring (13).

Description

Mining blast well explosion vent impact resistance detection device Technical Field The invention relates to the technical field of mining material detection tools, in particular to a mining air shaft explosion door impact resistance detection device. Background The explosion-proof impact resistance of the mining material is directly related to the safety stability of underground operation of the mine, is a key factor for guaranteeing normal operation of mining equipment, avoiding collapse, explosion and other safety accidents, so that accurate and safe explosion-proof impact resistance detection of the mining material is an indispensable important step in the safety production link of the mine, at present, various mining material impact resistance detection devices exist in the industry, the core principle of the device is that the material to be detected is impacted by the swing of a hammer block so as to simulate the impact load in the actual working condition and further evaluate the material performance; The hammer block limiting structure of the existing device mostly adopts a single limiting mode, for example, a traditional cylinder pushes a limiting rod to limit the position of the hammer head so as to prevent the electric control limiting of the sagging of the hammer head, at the moment, double protection guarantee is lacking, the single electric limiting is easily influenced by factors such as circuit faults, signal interference and the like, limiting failure is caused, and once a worker touches a control switch by mistake or the operation steps are improper, the unexpected release of the hammer block is easily caused, and impact injury is caused to personnel and equipment around a detection area; therefore, an improvement is required to deal with the above problems. Disclosure of Invention The invention aims to solve the defects in the prior art, and provides a mining air shaft explosion door impact resistance detection device. In order to achieve the aim, the invention adopts the following technical scheme that the anti-impact detection device for the explosion door of the mining air shaft comprises a detection table, wherein a driving table is arranged in the middle of the top surface of the detection table, a placing table is arranged at the front end of the detection table, a detection area is arranged between the two placing tables, a dial is arranged at the front end of the top surface of the driving table, a hammer block is rotationally connected to the front end of the dial, and a protection component for limiting the hammer block is arranged on the top surface of the detection table; a force calculation module and an impact early warning module are arranged in the controller of the detection device; The system comprises a force calculation module, a real-time energy loss coefficient, a dynamic correction module, a power calculation module and a power control module, wherein the force calculation module calculates gravitational potential energy increment based on inherent parameters such as mass, pendulum length and the like of a hammer block, and introduces a real-time energy loss coefficient which comprehensively considers influence factors such as mechanical abrasion, lifting angle, material characteristics, component aging and the like and dynamically corrects the factors through a multi-factor product model; The system comprises an impact early warning module, a system and a system, wherein the impact early warning module is used for carrying out gray processing and contour extraction on image data and marking contour lines of impact positions, monitoring offset angles of the contour lines in the impact process in real time, comparing the offset angles with preset limit offset angles, combining limit stress of similar materials in historical data, calculating limit impact force by the system, comparing the limit impact force with current real-time impact force to obtain impact force difference, and automatically sending early warning if the offset angles are close to or reach the maximum offset angle. Preferably, the data analysis of the dynamics calculation module comprises the following steps: m1, lifting angle based on collection of angle sensor Calculating gravitational potential energy increment of hammer blockPerforming outlier detection and preprocessing on the collected angle data, and removing data exceeding the mean value plus or minus 3 times of standard deviation to obtain effective angle data; M2, respectively calculating real-time energy loss coefficients according to factors such as mechanical abrasion, lifting angle deviation, material elastic modulus, component aging and the like And is obtained by a product modelValue, substituting and calculating impact forceThereby combining the impact contact areaCalculation of impact stressThe dynamic correction and output of the impact parameters are realized. Preferably, the data analysis of the dynamics calculation module com