CN104265366B - A kind of pressure release type repeatedly cushions reset anti-explosion door automatically - Google Patents
A kind of pressure release type repeatedly cushions reset anti-explosion door automatically Download PDFInfo
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- CN104265366B CN104265366B CN201410471026.4A CN201410471026A CN104265366B CN 104265366 B CN104265366 B CN 104265366B CN 201410471026 A CN201410471026 A CN 201410471026A CN 104265366 B CN104265366 B CN 104265366B
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- door
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- extension spring
- driving shaft
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/16—Shaft covers
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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Abstract
A kind of pressure release type repeatedly cushions reset anti-explosion door automatically, relates to the field of ventilating system under coal mine, comprises that sealing base, two cant boards, two fan oblique pulls open the door; Explosion proof door also comprises tension spring component, and tension spring component comprises two extension spring mount pads and an extension spring, and extension spring mount pad is connected to the outside that oblique pull is opened the door, and the two ends of extension spring are connected with extension spring mount pad respectively; Between two cant boards, support driving shaft and driven shaft, driving shaft with on driven shaft, be all connected a suite handle geared linkage mechanism, every suite handle geared linkage mechanism includes two gears, two cranks, two connecting rods, one end of each crank is connected with gear respectively, the other end of each crank is hinged with connecting rod one end respectively, the other end of every connecting rod connects with oblique pull door hinge respectively, and the gear on driving shaft is meshed with the gear on driven shaft; One end of driving shaft connects electromagnetic clutch, reductor, motor successively. The present invention's release in time in time reset, two fan door synchronous opening/closings.
Description
Technical field
The present invention relates to the field of ventilating system under coal mine, relate in particular to the structure of explosion proof door.
Background technology
Coal mine return air well explosion proof door is a significant components of underground coal mine ventilating system. The all collieries up to standard of China, in order to protect main air blower to avoid being damaged in the time that explosion wave arrives, are all required to install explosion proof door, lid at present. It,, in the time of normal ventilation, is used to barrier wells downstream and surface air, prevents Air escape branch, and guarantee ventilating system is normally moved; When gas or coal-dust explosion occur in down-hole, the air-flow that explosion proof door can be exploded is washed open, and shock wave is directly discharged into ground ambient atmosphere, thereby plays release effect, prevents that main ventilation blower from causing damage because air blast impacts. In the time that main ventilation blower is out of service, can open explosion proof door, to utilize natural ventilation pressure to ventilate.
From anti-explosion door structure, the main outstanding problem existing is at present:
1, explosion proof door cannot reset or reset difficult: this by dismantling and install the method for operating of weight quantity, adjustment weight group and explosion-proof every body weight relation, can realize theoretically. But in practical operation, but there are at the scene following problems:
1) when explosion proof door rises to design height, on ventilating shaft well head open wide, mine utilizes natural ventilation pressure to ventilate, personnel above ventilating shaft mouth or near high-rise working, there is potential safety hazard;
2) weight set is apart from ground level generally more than 2 meters, and personnel are operation below, has potential safety hazard;
3) the every general about 50kg of balancing weight weight, and must be symmetrically from two groups or four set of weights assemblies, take off simultaneously, otherwise will cause explosion-proof every body to tilt, have troublesome poeration and need a lot of people to work simultaneously and coordinate and will get well, the labour intensity that increases workman also easily causes the generation of security incident;
2, snap close explosion proof door complex procedures, needs several miners, consuming time many:
Former explosion proof door inverted ventilation locker, forms by being positioned at the outer peripheral multiple briquettings of explosion proof door and pre-embedded bolt. In the time that blower fan runs well, the briquetting of inverted ventilation locking device should freely rotate in not withholding the position of a body and not tightening up. Only, in the time of needs inverted ventilation, withhold a body locking;
In the time of back lass, need by manually multiple briquettings being mentioned to 90-degree rotation, one end is pressed on a body, and the other end is pressed on the slab that is embedded in the borehole wall, then pre-embedded bolt is tightened. When snap close explosion proof door, obtain complex operation and consuming time many. According to measuring and calculating: briquetting of snap close probably needs more than 3 minutes, need the time of locking longer if encountered in the bad situation of weather condition; Relevant code requires to realize the requirement of inverted ventilation in 10 minutes. If therefore do not incur loss through delay the inverted ventilation time, that will prepare enough staff, and skilled snap close be compressed, this have sizable difficulty and uncontrollable factor too many.
3, explosion proof door can not be steadily, synchronization lifting
In actual motion, due under factors such as being subject to extraneous wind-force, friction force of steel rope, explosion proof door crudy, regular maintenance affects, explosion proof door rises and landing can not ensure steadily and synchronous, as easy as rolling off a log generation jam, crooked and asynchronous.
4, after mine explosion door is opened in the time that ventilation blower is out of service, blower fan restarts and can not automatically cut out, and need to manually close, and speed is slow, affects ventilating system and normally moves.
5, a ventilating shaft service area in the windy well colliery accident of blasting, explosion proof door cannot automatically reset after opening release, the explosion proof door (lid) that this ventilating shaft is installed is subject to explosion wave to cause explosion proof door (lid) to open, although this ventilating shaft blower fan does not shut down, but because the negative pressure inside and outside pit shaft is because of the unlatching disappearance of explosion proof door (lid), because this ventilating shaft of effect of other ventilating shaft becomes downcast, the toxic and harmful that the regional explosion of this ventilating shaft service produces, along with the disorder that other ventilating shaft causes is distinguished and admirable, to the regional diffusion of other ventilating shaft service, thereby the region that causes other ventilating shaft service is subject to the harm of explosion accident.
Summary of the invention
The object of the invention is in order to overcome the deficiencies in the prior art, provide the pressure release types of the timely release of a kind of energy reset in time, two fan door synchronous opening/closings automatically repeatedly to cushion reset anti-explosion door.
The object of the present invention is achieved like this: a kind of pressure release type repeatedly cushions reset anti-explosion door automatically, comprise the square sealing base being arranged on well head ground, triangle cant board is all welded in both sides, front and back above square sealing base, the upper end of two cant boards connects by main spar, opens the door in the left and right sides above square sealing base all hinged oblique pull, pulley yoke is all installed in the left and right sides at well head ground, on each pulley yoke, all support pulley, every fan oblique pull upper equal connecting steel wire ropes that opens the door, corresponding pulley walked around respectively by every steel wire rope and the other end connects counterweight counterweight, in the left and right sides of well head ground, hydraulic bjuffer is all installed, described explosion proof door also comprises tension spring component, and tension spring component comprises two extension spring mount pads and an extension spring, and each extension spring mount pad is connected to the outside that corresponding oblique pull is opened the door, and the two ends of extension spring are connected with corresponding extension spring mount pad respectively, between two cant boards, support driving shaft and the driven shaft of lateral arrangement, driving shaft with on driven shaft, be all connected a suite handle geared linkage mechanism, two suite handle geared linkage mechanisms are arranged symmetrically with, every suite handle geared linkage mechanism is all arranged on the outside of cant board, every suite handle geared linkage mechanism includes two gears, two cranks, two connecting rods, wherein two gears of a suite handle geared linkage mechanism are connected to the two ends of driving shaft, two gears of another suite handle geared linkage mechanism are connected to the two ends of driven shaft, one end of each crank is connected with corresponding gear respectively, the other end of each crank is hinged with corresponding connecting rod one end respectively, the other end of every connecting rod connects with oblique pull door hinge respectively, gear on driving shaft is meshed with the gear on driven shaft, one end of described driving shaft connects electromagnetic clutch, reductor, motor successively, and reductor is connected in decelerator frame.
The present invention is by above design, and its structural principle is as follows:
1. the unlatching of explosion proof door and reset
1) unlatching of explosion time explosion proof door and reset. In the time there is gas explosion, explosion proof door can be under the effect of shock wave moment open, contact switch (time delay 2 ~ 3s) by crank gear linkage after pressure release makes electromagnetic clutch adhesive, and actuating motor is by decelerator, electromagnetic clutch transmission driving shaft, drive driven shaft through sector gear, simultaneously crank rotates and drives explosion proof door to reset, and explosion proof door resets time of cutting out for about≤4s as calculated. After reset finishes, electromagnetic clutch separates, and motor stops.
2) unlatching of explosion proof door when blower fan stall. When blower fan stall, mine negative pressure disappears, and now will under the effect of counterweight, explosion proof door be opened automatically, realizes the gravity-flow ventilation of mine, and after the normal work of blower fan, starter motor and electromagnetic clutch reset rapidly explosion proof door at once.
2. locking when explosion proof door inverted ventilation
While needing inverted ventilation, motor, by decelerator, electromagnetic clutch driving crank connecting rod, handles door-plate and cuts out, and due to the self-locking of mechanism, has ensured the locking of door-plate. Inverted ventilation finishes, and electromagnetic clutch discharges, and mechanism is in free state, and door-plate can freely be opened in counterweight effect.
In sum, the present invention's release in time also meets the requirement resetting in time, when ventilation blower is out of service, can open fast, realize the reset that can at once realize explosion proof door after gravity-flow ventilation and blower fan work, when inverted ventilation, the locking operation of explosion proof door is simple, quick, realizes the synchronous opening/closing of two fan doors, and explosion proof door is easy to opening and closing.
As improvement of the present invention, on each counterweight counterweight, connect respectively counterweight buffer board, in the left and right sides of well head ground, counterweight support is all installed, the lower end of each counterweight support all connects counterweight buffing pad. In the time that door is opened to certain angle, counterweight buffer board touches counterweight buffing pad, at this moment the counterweight counterweight on counterweight buffer board top no longer plays pulling force effect, reduce to a great extent the distortion of door-plate, and the reset impact of counterweight counterweight opposite house when alleviating explosion proof door and resetting.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention in the time closing.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the structural representation of the present invention in the time opening.
Fig. 4 is the top view of Fig. 3.
Fig. 5 is the partial schematic diagram of Fig. 4.
Detailed description of the invention
As Figure 1-5, the present invention mainly comprises the square sealing base 1 being arranged on well head ground 22, and the upper end that 3, two cant boards 3 of cant board of isosceles triangle are all welded in the both sides, front and back above square sealing base 1 connects by main spar 4. The left and right sides above square sealing base 1 all hinged oblique pull opens the door 2, and open the door 2 inner side surrounding of every fan oblique pull all connects hollow flexible rubber plate 5, matches realize sealing with main spar 4,3 two hypotenuses of cant board, square sealing base 1.
Explosion proof door also comprises two groups of tension spring components 21, every group of tension spring component 21 includes two extension spring mount pad 21-1 and an extension spring 21-2, each extension spring mount pad 21-1 is connected to open the door 2 outside of corresponding oblique pull, one end of extension spring 21-2 is connected with an extension spring mount pad 21-1 wherein, the other end is connected with another extension spring mount pad 21-1, and every extension spring 21-2 is separately positioned on the outside of corresponding cant board 3.
Between two cant boards 3, support driving shaft 15 and the driven shaft 23 of lateral arrangement, driving shaft 15 with on driven shaft 23, be all connected a suite handle geared linkage mechanism 6, two suite handle geared linkage mechanisms 6 are arranged symmetrically with, every suite handle geared linkage mechanism 6 is all arranged on the outside of cant board 3 and is arranged on the below of tension spring component 21, every suite handle geared linkage mechanism 6 includes two sector gear 6-1, two crank 6-2, two connecting rod 6-3, wherein two gear 6-1 of a suite handle geared linkage mechanism 6 are connected to the two ends of driving shaft 15, two gear 6-1 of another suite handle geared linkage mechanism 6 are connected to the two ends of driven shaft 23, one end of each crank 6-2 is connected with corresponding gear 6-1 respectively, the other end of each crank 6-2 is hinged with corresponding connecting rod 6-3 one end respectively, the other end of every connecting rod 6-3 is hinged with oblique pull door 2 respectively, gear 6-1 on driving shaft 15 is meshed with the gear 6-1 on driven shaft 23. one end of driving shaft 15 connects electromagnetic clutch 16, and electromagnetic clutch 16 connects cycloidal planetary gear speed reducer 17 by shaft coupling 18, and cycloidal planetary gear speed reducer 17 connects motor 19, and cycloidal planetary gear speed reducer 17 is connected in decelerator frame 20.
In the left and right sides of well head ground 22, two pulley yokes 9 are all installed, on each pulley yoke 9, all support two pulleys 8, every fan oblique pull is opened the door on 2 and is all connected two steel wire ropes 7, every steel wire rope 7 is walked around respectively corresponding pulley 8 and other end connection counterweight counterweight 10, the outer counterweight buffer board 11 that connects respectively of each counterweight counterweight 10, in the left and right sides of well head ground 22, two counterweight supports 12 are all installed, the lower end of each counterweight support 12 all connects counterweight buffing pad 14, and in the time that counterweight counterweight 10 declines, counterweight counterweight 10 contacts with counterweight buffing pad 14 with counterweight buffer board 11.
In the left and right sides of well head ground 22, two hydraulic bjuffers 13 are all installed; for ensureing that explosion proof door is under shock; do not occur to destroy and excessive deformation; in the time of door-plate opening angle to 85 °; middle part at door contacts with hydraulic bjuffer; start to absorb the impact energy of explosion proof door, to reach the object of protection explosion proof door.
Claims (2)
1. a pressure release type repeatedly cushions reset anti-explosion door automatically, comprise the square sealing base being arranged on well head ground, triangle cant board is all welded in both sides, front and back above square sealing base, the upper end of two cant boards connects by main spar, opens the door in the left and right sides above square sealing base all hinged oblique pull, pulley yoke is all installed in the left and right sides at well head ground, on each pulley yoke, all support pulley, every fan oblique pull upper equal connecting steel wire ropes that opens the door, corresponding pulley walked around respectively by every steel wire rope and the other end connects counterweight counterweight, in the left and right sides of well head ground, hydraulic bjuffer is all installed, it is characterized in that: described explosion proof door also comprises tension spring component, tension spring component comprises two extension spring mount pads and an extension spring, and each extension spring mount pad is connected to the outside that corresponding oblique pull is opened the door, and the two ends of extension spring are connected with corresponding extension spring mount pad respectively, between two cant boards, support driving shaft and the driven shaft of lateral arrangement, driving shaft with on driven shaft, be all connected a suite handle geared linkage mechanism, two suite handle geared linkage mechanisms are arranged symmetrically with, every suite handle geared linkage mechanism is all arranged on the outside of cant board, every suite handle geared linkage mechanism includes two gears, two cranks, two connecting rods, wherein two gears of a suite handle geared linkage mechanism are connected to the two ends of driving shaft, two gears of another suite handle geared linkage mechanism are connected to the two ends of driven shaft, one end of each crank is connected with corresponding gear respectively, the other end of each crank is hinged with corresponding connecting rod one end respectively, the other end of every connecting rod connects with oblique pull door hinge respectively, gear on driving shaft is meshed with the gear on driven shaft, one end of described driving shaft connects electromagnetic clutch, reductor, motor successively, and reductor is connected in decelerator frame.
2. pressure release type according to claim 1 repeatedly cushions reset anti-explosion door automatically, it is characterized in that: on each counterweight counterweight, connect respectively counterweight buffer board, counterweight support is all installed in the left and right sides at well head ground, and the lower end of each counterweight support all connects counterweight buffing pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410471026.4A CN104265366B (en) | 2014-09-17 | 2014-09-17 | A kind of pressure release type repeatedly cushions reset anti-explosion door automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410471026.4A CN104265366B (en) | 2014-09-17 | 2014-09-17 | A kind of pressure release type repeatedly cushions reset anti-explosion door automatically |
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| Publication Number | Publication Date |
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| CN104265366A CN104265366A (en) | 2015-01-07 |
| CN104265366B true CN104265366B (en) | 2016-05-25 |
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| CN201410471026.4A Active CN104265366B (en) | 2014-09-17 | 2014-09-17 | A kind of pressure release type repeatedly cushions reset anti-explosion door automatically |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533318B (en) * | 2018-04-02 | 2024-07-09 | 扬州市江隆矿业设备有限公司 | Large-diameter vertical fin type explosion door |
| CN108894821B (en) * | 2018-08-23 | 2024-03-22 | 扬州市江隆矿业设备有限公司 | Self-recovery horizontal moving type inclined shaft explosion door |
| CN108757035B (en) * | 2018-08-23 | 2024-01-26 | 扬州市江隆矿业设备有限公司 | Self-resetting up-down rotary type inclined shaft explosion-proof door |
| CN108757034A (en) * | 2018-08-23 | 2018-11-06 | 扬州市江隆矿业设备有限公司 | The joint flash formula inclined shaft explosion proof door of Self-resetting |
| CN112177224B (en) * | 2020-11-11 | 2022-05-03 | 陈琇 | Explosion-proof factory building pressure release equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201851144U (en) * | 2010-11-22 | 2011-06-01 | 黑龙江科技学院 | Coal extraction face blowback type quick explosion suppression device |
| CN202300524U (en) * | 2011-11-04 | 2012-07-04 | 山西创奇实业有限公司 | Self-reset anti-explosive door of flat shaft and inclined shaft |
| CN103615287A (en) * | 2013-12-17 | 2014-03-05 | 中国人民解放军理工大学 | The bus bar sealing device in the protective airtight partition door of the subway section |
| CN204113346U (en) * | 2014-09-17 | 2015-01-21 | 扬州市江隆矿业设备有限公司 | A kind of pressure release type repeatedly cushions reset anti-explosion door automatically |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7393025B2 (en) * | 2003-11-12 | 2008-07-01 | Kennedy Metal Products & Buildings, Inc. | Mine door system with trigger-actuated latch mechanism |
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2014
- 2014-09-17 CN CN201410471026.4A patent/CN104265366B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201851144U (en) * | 2010-11-22 | 2011-06-01 | 黑龙江科技学院 | Coal extraction face blowback type quick explosion suppression device |
| CN202300524U (en) * | 2011-11-04 | 2012-07-04 | 山西创奇实业有限公司 | Self-reset anti-explosive door of flat shaft and inclined shaft |
| CN103615287A (en) * | 2013-12-17 | 2014-03-05 | 中国人民解放军理工大学 | The bus bar sealing device in the protective airtight partition door of the subway section |
| CN204113346U (en) * | 2014-09-17 | 2015-01-21 | 扬州市江隆矿业设备有限公司 | A kind of pressure release type repeatedly cushions reset anti-explosion door automatically |
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| CN104265366A (en) | 2015-01-07 |
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| C10 | Entry into substantive examination | ||
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| ASS | Succession or assignment of patent right |
Owner name: JINCHENG YUGUANG INDUSTRIAL CO., LTD. Effective date: 20150205 |
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Effective date of registration: 20150205 Address after: 225131 No. eight Li Industrial Park, Yangzhou Development Zone, Jiangsu 128, China Applicant after: YANGZHOU JIANGLONG MINING EQUIPMENT CO., LTD. Applicant after: JINCHENG YUGUANG INDUSTRIAL CO., LTD. Address before: 225131 No. eight Li Industrial Park, Yangzhou Development Zone, Jiangsu 128, China Applicant before: YANGZHOU JIANGLONG MINING EQUIPMENT CO., LTD. |
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