CN204113346U - 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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- CN204113346U CN204113346U CN201420531206.2U CN201420531206U CN204113346U CN 204113346 U CN204113346 U CN 204113346U CN 201420531206 U CN201420531206 U CN 201420531206U CN 204113346 U CN204113346 U CN 204113346U
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- door
- extension spring
- driving shaft
- linkage mechanism
- explosion
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Abstract
A kind of pressure release type repeatedly cushions reset anti-explosion door automatically, relates to the field of underground coal mine ventilation system, comprises sealing base, two pieces of cant boards, two fan oblique pulls are opened 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; Driving shaft and driven shaft is supported between two pieces of cant boards, driving shaft with driven shaft are 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 root 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.Door synchronous opening/closings are fanned in the utility model energy release in time also reset in time, two.
Description
Technical field
The utility model relates to the field of underground coal mine ventilation system, particularly relates 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 ventilation system.Avoiding being damaged when explosion wave arrives to protect main air blower in all collieries up to standard of current China, is all required to install explosion proof door, lid.It is when normally ventilating, and is used to barrier wells downstream and surface air, prevents Air escape branch, ensures that ventilation system is normally run; When gas or coal-dust explosion occur in down-hole, explosion proof door can be washed open by the air-flow exploded, and shock wave is directly discharged into ground ambient atmosphere, thus plays release effect, prevents chief ventilators from causing damage because air blast impacts.When chief ventilators is out of service, can explosion proof door be opened, ventilate to utilize natural ventilation pressure.
From anti-explosion door structure, the main outstanding problem existed at present is:
1, explosion proof door cannot reset or reset difficulty: this method of operating by dismantling and install weight quantity, adjustment weight group and explosion-proof every body weight relation, can realize theoretically.But but there are following problems in practical operation at the scene:
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, there is potential safety hazard;
3) the general about 50kg of every block balancing weight weight, and must take off from two groups or four set of weights assemblies symmetrically simultaneously, otherwise explosion-proof every body will be caused to tilt, there is troublesome poeration and need a lot of people to work simultaneously and coordinate to get well, the labour intensity increasing workman also easily causes the generation of security incident;
2, snap close explosion proof door complex procedures, need several miner, consuming time many:
Former explosion proof door inverted ventilation locker, by being positioned at the outer peripheral multiple briquetting of explosion proof door and pre-embedded bolt forms.When blower fan runs well, the briquetting of inverted ventilation locking device should be in the position of not withholding a body and tighten up and freely not rotate.Only when needs inverted ventilation, withhold a body and lock;
When back lass, need lean on and manually multiple briquetting be mentioned 90-degree rotation, one end is pressed on a body, and the other end is pressed in and is embedded on the slab of the borehole wall, then is tightened by pre-embedded bolt.Complex operation and consuming time many is obtained during snap close explosion proof door.According to measuring and calculating: snap close briquetting probably needs more than 3 minutes, if encounter weather condition bad when need lock time longer; Relevant regulatory requirements realized 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 be compressed by snap close, this have sizable difficulty and uncontrollable factor too many.
3, explosion proof door can not steadily, synchronization lifting
In actual motion, under affecting by factors such as extraneous wind-force, friction force of steel rope, explosion proof door crudy, regular maintenances, 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 when ventilation fan is out of service, blower fan restarts and can not automatically cut out, and needs manually to close, and speed is slow, affects ventilation system and normally runs.
5, blast accident in the ventilating shaft service center in windy well colliery, explosion proof door cannot automatically reset after opening release, the explosion proof door (lid) that this ventilating shaft is installed causes explosion proof door (lid) by explosion wave and opens, although this ventilating shaft blower fan does not shut down, but because the unlatching of the negative pressure inside and outside pit shaft because of explosion proof door (lid) disappears, because this ventilating shaft of effect of other ventilating shaft becomes downcast, the toxic and harmful of the regional explosion generation of this ventilating shaft service, the disorder caused along with other ventilating shaft is distinguished and admirable, to the regional diffusion that other ventilating shaft is served, thus cause the region of other ventilating shaft service to be subject to the harm of explosion accident.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, the timely release of a kind of energy is provided and reset in time, the pressure release types of two fan door synchronous opening/closings repeatedly cushion reset anti-explosion door automatically.
The purpose of this utility model is achieved in that a kind of pressure release type repeatedly cushions reset anti-explosion door automatically, comprise the square sealing base be arranged on well head ground, triangle side riser is all welded in both sides, front and back above square sealing base, the upper end of two pieces of cant boards is connected by main spar, and all hinged oblique pull in the left and right sides above square sealing base is opened the door, all pulley yoke is installed in the left and right sides of well head ground, each pulley yoke all supports pulley, often fan the upper equal connecting steel wire ropes of oblique pull enabling, corresponding pulley walked around respectively by every root wire rope and the other end connects weights, all installs oil buffer in the left and right sides of well head ground, 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, driving shaft and the driven shaft of lateral arrangement is supported between two pieces of cant boards, driving shaft with driven shaft are 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, other end connecting rod one end respectively with corresponding of each crank is hinged, the other end of every root 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 reducer frame.
The utility model 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.When there is gas explosion, explosion proof door can be opened instantaneously under the effect of shock wave, contact switch (time delay 2 ~ 3s) by crank gear linkage after pressure release makes electromagnetic clutch adhesive, and actuating motor is by reducer, electromagnetic clutch transmission driving shaft, driven shaft is driven through sector gear, crank drives explosion proof door to reset simultaneously, and the time that explosion proof door reset is closed as calculated is≤about 4s.After reset terminates, electromagnetic clutch is separated, and motor stops.
2) unlatching of explosion proof door during blower fan stall.During blower fan stall, mine negative pressure disappears, and now automatically opened under the effect of counterweight by explosion proof door, realize the natural ventilation of mine, after blower fan normally works, starter motor and electromagnetic clutch make explosion proof door reset rapidly at once.
2. locking during explosion proof door inverted ventilation
When needing inverted ventilation, motor, by reducer, electromagnetic clutch driving crank connecting rod, handles door-plate and cuts out, due to the self-locking of mechanism, ensure that the locking of door-plate.Inverted ventilation terminates, and electromagnetic clutch discharges, and mechanism is in free state, and door-plate can freely be opened in counterweight effect.
In sum, the utility model release in time can also meet the requirement resetted in time, can open fast when ventilation fan is out of service, at once the reset of explosion proof door can be realized after realizing natural ventilation and blower fan work, during 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 open and close.
As improvement of the present utility model, each weights connects counterweight buffer plate respectively, all install counterweight support in the left and right sides of well head ground, the lower end of each counterweight support all connects counterweight buffer seat.When door is opened to certain angle, counterweight buffer plate touches counterweight buffer seat, at this moment the weights on counterweight buffer plate top no longer plays pulling force effect, decrease the distortion of door-plate to a great extent, and alleviate the reset impact of weights opposite house when explosion proof door resets.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model when closing.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the structural representation of the utility model when 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 utility model mainly comprises the square sealing base 1 be arranged on well head ground 22, and the upper end that cant board 3, two pieces of cant boards 3 of isosceles triangle are all welded in the both sides, front and back above square sealing base 1 is connected by main spar 4.The all hinged oblique pull in the left and right sides above square sealing base 1 opens the door 2, and the inner side surrounding of often fanning oblique pull enabling 2 all connects flexible hollow rubber tile 5, matches realize sealing with main spar 4, cant board 3 two hypotenuses, square sealing base 1.
Explosion proof door also comprises two groups of tension spring components 21, often organize tension spring component 21 and include two extension spring mount pad 21-1 and extension spring 21-2, each extension spring mount pad 21-1 is connected to the outside of corresponding oblique pull enabling 2, one end of extension spring 21-2 is connected with a wherein extension spring mount pad 21-1, the other end is connected with another extension spring mount pad 21-1, and every root extension spring 21-2 is separately positioned on the outside of corresponding cant board 3.
Driving shaft 15 and the driven shaft 23 of lateral arrangement is supported between two pieces of cant boards 3, driving shaft 15 with driven shaft 23 are 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, other end connecting rod 6-3 one end respectively with corresponding of each crank 6-2 is hinged, the other end of every root 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 reducer frame 20.
Two pulley yokes 9 are all installed in the left and right sides of well head ground 22, each pulley yoke 9 all supports two pulleys 8, often fan in oblique pull enabling 2 and all connect two wire rope 7, corresponding pulley 8 walked around respectively by every root wire rope 7 and the other end connects weights 10, each weights 10 is outer connects counterweight buffer plate 11 respectively, two counterweight supports 12 are all installed in the left and right sides of well head ground 22, the lower end of each counterweight support 12 all connects counterweight buffer seat 14, and when weights 10 declines, weights 10 contacts with counterweight buffer seat 14 with counterweight buffer plate 11.
Two oil buffers 13 are all installed in the left and right sides of well head ground 22; for ensureing that explosion proof door is under shock; do not occur to destroy and excessive deformation; when door-plate opening angle to 85 °; contact with oil buffer at the middle part of door; start the impact energy absorbing 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 be arranged on well head ground, triangle side riser is all welded in both sides, front and back above square sealing base, the upper end of two pieces of cant boards is connected by main spar, and all hinged oblique pull in the left and right sides above square sealing base is opened the door, all pulley yoke is installed in the left and right sides of well head ground, each pulley yoke all supports pulley, often fan the upper equal connecting steel wire ropes of oblique pull enabling, corresponding pulley walked around respectively by every root wire rope and the other end connects weights, all installs oil buffer in the left and right sides of well head ground, 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, driving shaft and the driven shaft of lateral arrangement is supported between two pieces of cant boards, driving shaft with driven shaft are 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, other end connecting rod one end respectively with corresponding of each crank is hinged, the other end of every root 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 reducer frame.
2. pressure release type according to claim 1 repeatedly cushions reset anti-explosion door automatically, it is characterized in that: each weights connects counterweight buffer plate respectively, all install counterweight support in the left and right sides of well head ground, the lower end of each counterweight support all connects counterweight buffer seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420531206.2U CN204113346U (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 |
|---|---|---|---|
| CN201420531206.2U CN204113346U (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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| CN204113346U true CN204113346U (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420531206.2U Withdrawn - After Issue CN204113346U (en) | 2014-09-17 | 2014-09-17 | A kind of pressure release type repeatedly cushions reset anti-explosion door automatically |
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| CN (1) | CN204113346U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265366A (en) * | 2014-09-17 | 2015-01-07 | 扬州市江隆矿业设备有限公司 | Pressure-relief type automatic multi-buffered reset explosion door |
| CN108757035A (en) * | 2018-08-23 | 2018-11-06 | 扬州市江隆矿业设备有限公司 | Self-resetting type rotates upwardly and downwardly formula inclined shaft explosion proof door |
| CN111425236A (en) * | 2020-03-05 | 2020-07-17 | 河南理工大学 | Mechanical replacement type mine explosion door |
-
2014
- 2014-09-17 CN CN201420531206.2U patent/CN204113346U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265366A (en) * | 2014-09-17 | 2015-01-07 | 扬州市江隆矿业设备有限公司 | Pressure-relief type automatic multi-buffered reset explosion door |
| CN104265366B (en) * | 2014-09-17 | 2016-05-25 | 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 |
| CN108757035A (en) * | 2018-08-23 | 2018-11-06 | 扬州市江隆矿业设备有限公司 | Self-resetting type rotates upwardly and downwardly formula inclined shaft explosion proof 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 |
| CN111425236A (en) * | 2020-03-05 | 2020-07-17 | 河南理工大学 | Mechanical replacement type mine explosion door |
| CN111425236B (en) * | 2020-03-05 | 2021-12-14 | 河南理工大学 | Mechanical replacement type mine explosion door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150121 Effective date of abandoning: 20160525 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |