CN208089347U - A kind of major diameter vertical joint flash formula explosion proof door - Google Patents
A kind of major diameter vertical joint flash formula explosion proof door Download PDFInfo
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- CN208089347U CN208089347U CN201820447655.7U CN201820447655U CN208089347U CN 208089347 U CN208089347 U CN 208089347U CN 201820447655 U CN201820447655 U CN 201820447655U CN 208089347 U CN208089347 U CN 208089347U
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- crossbeam
- door
- outline border
- explosion proof
- crank
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Abstract
A kind of major diameter vertical joint flash formula explosion proof door, it is related to the field of underground coal mine ventilating system, including the outline border being arranged on well head ground, to wear face rounded for outline border horizontal, the longitudinal section of outline border is low in middle part, the left and right sides is high, and is bevel edge between the middle part and the left and right sides of outline border；Crossbeam is arranged in top in the middle part of outline border, and door-plate is respectively articulated at left and right sides of crossbeam；Actuating unit is connected in one end of the upper support driving shaft and driven shaft of crossbeam, driving shaft, one group of crank geared linkage mechanism is all connected on driving shaft and transmission shaft, every group of crank geared linkage mechanism includes two sector gears, two cranks, two connecting rods；One group of pulley yoke is installed on well head ground, pulley yoke is located therein the side of one piece of door-plate, pulley is supported on pulley yoke, the door-plate connecting steel wire ropes far from pulley yoke, and steel wire rope is around pulley and other end connection weights.The utility model can release in time and reset in time, two fan door synchronous opening/closings.
Description
Technical field
The utility model is related to the field of underground coal mine ventilating system more particularly to the structures of explosion proof door.
Background technology
Coal mine return air well explosion proof door is a significant components of underground coal mine ventilating system.All coal mines up to standard in China at present
In order to protect main air blower to avoid being destroyed when explosion wave arrives, it is both required to installation explosion proof door, lid.It is in positive normal open
When wind, it is used to isolation underground air-flow and surface air, prevents Air escape branch, ensures ventilating system normal operation；When underground is sent out
Raw gas or coal-dust explosion, the air-flow that explosion proof door can be exploded are washed open, and shock wave is directly discharged to ground ambient atmosphere, to
Play the role of release, prevents chief ventilators from being damaged because air blast impacts.It, can when chief ventilators are out of service
To open explosion proof door, to be divulged information using natural ventilation pressure.《Safety regulations in coal mine》Middle regulation：It is necessary to produce main fan in mine
Equipped with inverted ventilation facility, and the wind direction in tunnel can be changed in 10min.
But general vertical ventilating shaft explosion-proof door has the following problems：1. when the intensity that underground is exploded is higher, prevent
Quick-fried door is often lifted by air blast winged, to restore ventilation in first time, and then makes rescue work can not be at first
Interior expansion；2. when chief ventilators, which have a power failure, sends a telegram in reply, explosion proof door can not be opened and closed timely and conveniently；3. if explosion production
Raw impact wave is too strong, then explosion proof door is easy to be destroyed, makes inverted ventilation that can not carry out.If inverted ventilation prepares after accident
Overlong time or can not inverted ventilation, the life security of down-hole trapped personnel will be seriously threatened.
Invention content
The purpose of this utility model is to overcome the deficiencies in the prior art, providing a kind of release in time and can in time answer
Position, two fan door synchronous opening/closings major diameter vertical joint flash formula explosion proof door.
What the purpose of this utility model was realized in：A kind of major diameter vertical joint flash formula explosion proof door, including be arranged in well
Outline border on mouthful ground, the horizontal of the outline border wear that face is rounded, and the longitudinal section of outline border is low in middle part, the left and right sides is high, and outer
It is bevel edge between the middle part and the left and right sides of frame；Crossbeam is arranged in top in the middle part of the outline border, and the rear and front end of crossbeam is equal
It stretches out outline border and is respectively articulated with semicircular door-plate, two pieces of doors on well head ground, at left and right sides of crossbeam by upright supports
Plate is correspondingly arranged at respectively on the bevel edge at left and right sides of outline border；In the upper support driving shaft and driven shaft of the crossbeam, actively
One end of axis connects actuating unit, and one group of crank geared linkage mechanism, two groups of crank teeth are all connected on driving shaft and transmission shaft
Wheel link mechanism be arranged symmetrically, every group of crank geared linkage mechanism include two sector gears, two cranks, two connecting rods,
Two sector gears of one of which crank gear link mechanism are connected to the both ends of driving shaft, another group of crank gear connecting rod machine
Two sector gears of structure are connected to the both ends of driven shaft, and the sector gear on driving shaft is mutually nibbled with the sector gear on driven shaft
Close, one end of each crank is connected with corresponding sector gear respectively, the other end of each crank respectively with corresponding connecting rod one
End is hinged, and the other end of every connecting rod is hinged with corresponding door-plate respectively；One group of pulley yoke, pulley yoke are installed on well head ground
Be located therein the side of one piece of door-plate, pulley supported on pulley yoke, far from pulley yoke door-plate connecting steel wire ropes, steel wire rope around
Cross pulley and other end connection weights.
The structural principle of the utility model is as follows：
1. the unlatching and reset of explosion proof door
1）The unlatching and reset of explosion time explosion proof door.When gas explosion occurs, explosion proof door can be under the action of shock wave
Moment opens, and when shock wave is excessive, crossbeam and door-plate move upwardly together, to protect crossbeam and increase pressure release area.Pressure release
Pass through the contact switch of crank gear link mechanism afterwards（Be delayed 2 ~ 3s）, start actuating unit and be driven driving shaft, through sector gear
Driven shaft is driven, while crank rotation drives explosion proof door to reset, it is≤5s or so to be computed explosion proof door to reset the time closed.It is multiple
After position, actuating unit stops.
2）The unlatching of explosion proof door when wind turbine stalls.Mine negative pressure disappears when wind turbine stalls, at this time will be under the action of counterweight
Explosion proof door is automatically opened, realizes the gravity-flow ventilation of mine, starting actuating unit at once after wind turbine normal work keeps explosion proof door fast
Reply immediately position.
2. locking when explosion proof door inverted ventilation
When needing inverted ventilation, actuating unit driving crank connecting rod manipulates door-plate and closes, due to the self-locking of mechanism, ensure that door
The locking of plate.Inverted ventilation terminates, and stops actuating unit, and explosion proof door is in free state, and door-plate can be opened freely in counterweight effect.
In addition, the longitudinal section of the outline border of the utility model is low in middle part, the left and right sides is high, for slowing down explosion to crossbeam
Impact.Explosion proof door can be made to be tilted a certain angle in off position again, on the one hand can mitigate the impact that explosion end of door plate is brought, separately
On the one hand, be conducive to the unlatching of explosion proof door when fan parking.
In conclusion the utility model release in time and can meet the requirement that resets in time, energy when ventilation blower is out of service
It quickly opens, realizes the reset that can realize explosion proof door after gravity-flow ventilation and blower fan work at once, when inverted ventilation, the locking behaviour of explosion proof door
Make simply, quickly, to realize that two synchronous opening/closings for fanning doors, explosion proof door are easy to open and close.
Shoulder is arranged in the utility model on the column, and the crossbeam is arranged on the shoulder of column, is located on crossbeam
It is nested with spring on the column of side, the nut being threadedly coupled with column is equipped in the top of spring.Crossbeam both sides extension with it is vertical
Spring is installed above column bearing to mitigate impact of the explosion to crossbeam.
The column of the utility model has four, and wherein two root posts are located at the front end of crossbeam, and in addition two root posts are located at cross
The rear end of beam keeps balance.
The utility model connects cushioning support-saddle above the crossbeam, and it is slow that hydraulic pressure is separately connected at left and right sides of cushioning support-saddle
Device is rushed, the top of the piston rod of each hydraulic bjuffer is respectively facing corresponding door-plate.To ensure explosion proof door in explosion wave
Under effect, destruction and excessive deformation does not occur, after door-plate opens certain angle, the middle part of door-plate connects with hydraulic bjuffer
It touches, starts the impact energy for absorbing explosion proof door, to achieve the purpose that protect explosion proof door.
The utility model actuating unit includes sequentially connected motor, speed reducer, electromagnetic clutch, electromagnetic clutch and master
One end of moving axis connects, and motor is fixed by motor cabinet and crossbeam, and speed reducer is fixed by retarder rack with crossbeam.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Specific implementation mode
As shown in Figs. 1-3, major diameter vertical joint flash formula explosion proof door, including the outline border 2 that is arranged on well head ground 1, outline border
2 horizontal wears that face is rounded, and the longitudinal section of outline border 2 is low in middle part, the left and right sides is high, and the middle part of outline border 2 and the left and right sides it
Between be bevel edge.Crossbeam 3 is set in the top at the middle part of outline border 2, the rear and front end of crossbeam 3 stretches out outline border 2 and by 4, column
Support is on well head ground 1, and column 4 has four, and wherein two root posts 4 are located at the front end of crossbeam 3, and in addition two root posts 4 are located at cross
The rear end of beam 3.Shoulder 4-1 is set on column 4, and crossbeam 3 is shelved on the shoulder 4-1 of column 4, is located at the vertical of 3 top of crossbeam
It is nested with spring 21 on column 4, the nut 22 being threadedly coupled with column 4 is equipped in the top of spring 21.The shape of outline border 2 is for slowing down
The impact exploded to crossbeam 3, while it is quick-fried to mitigate to be equipped with spring 21 above 3 both sides extension of crossbeam and 4 bearing of column
The fried impact to crossbeam 3.
The left and right sides of crossbeam 3 is hinged semicircular door-plate 5 by hinge 6 respectively, and two pieces of door-plates 5 are correspondingly arranged at respectively
On the bevel edge of 2 left and right sides of outline border.Cushioning support-saddle 11 is connected above crossbeam 3, the left and right sides of cushioning support-saddle 1 is all connected with two
The top of hydraulic bjuffer 12, the piston rod of each hydraulic bjuffer 12 is respectively facing corresponding door-plate 5.
In the upper support driving shaft 13 and driven shaft 14 of crossbeam 3, one end of driving shaft 13 is sequentially connected electromagnetic clutch
16, speed reducer 17, motor 18, motor 18 are fixed by motor cabinet 20 and crossbeam 3, and speed reducer 17 passes through retarder rack 19 and cross
Beam 3 is fixed.One group of crank geared linkage mechanism 15, two groups of crank gear connecting rod machines are all connected on driving shaft 13 and transmission shaft 14
Structure 15 is arranged symmetrically, and every group of crank geared linkage mechanism 15 includes two sector gear 15-1, two crank 15-2, two companies
Bar 15-3, two sector gear 15-1 of one of which crank gear link mechanism 15 are connected to the both ends of driving shaft 13, another
Two sector gear 15-1 of group crank geared linkage mechanism 15 are connected to the both ends of driven shaft 14, the sector on driving shaft 13
Wheel 15-1 is meshed with the sector gear 15-1 on driven shaft 14, one end of each crank 15-2 respectively with corresponding sector gear
15-1 connections, the other end of each crank 15-2 is hinged with the one end corresponding connecting rod 15-3 respectively, and every connecting rod 15-3's is another
End is hinged with corresponding door-plate 5 respectively.
One group of pulley yoke 7 is installed on well head ground 1, pulley yoke 7 is located therein the side of one piece of door-plate 5, in pulley yoke 7
Upper support pulley 8,5 connecting steel wire ropes 9 of door-plate far from pulley yoke 7, steel wire rope 9 is around pulley 8 and other end connection counterweight weight
Code 10.
The structural principle of this utility model is as follows：
1. the unlatching and reset of explosion proof door
1）The unlatching and reset of explosion time explosion proof door.When gas explosion occurs, explosion proof door can be under the action of shock wave
Moment opens, and when shock wave is excessive, crossbeam and door-plate move upwardly together, to protect crossbeam and increase pressure release area.Pressure release
Pass through the contact switch of crank gear link mechanism afterwards（Be delayed 2 ~ 3s）So that electromagnetic clutch is attracted, and starts motor by subtracting
Fast device, electromagnetic clutch are driven driving shaft, drive driven shaft through sector gear, while crank rotation drives explosion proof door to reset, warp
It is≤5s or so to calculate explosion proof door to reset the time closed.After reset, electromagnetic clutch separation, motor stops.
2）The unlatching of explosion proof door when wind turbine stalls.Mine negative pressure disappears when wind turbine stalls, at this time will be under the action of counterweight
Explosion proof door is automatically opened, realizes the gravity-flow ventilation of mine, starting motor and electromagnetic clutch at once after wind turbine normal work makes
Explosion proof door resets rapidly.
2. locking when explosion proof door inverted ventilation
When needing inverted ventilation, motor is manipulated door-plate and is closed by retarder, electromagnetic clutch driving crank connecting rod, due to
The self-locking of mechanism ensure that the locking of door-plate.Inverted ventilation terminates, and electromagnetic clutch release, mechanism is in free state, door-plate with
Recast is with can freely open.
Claims (5)
1. a kind of major diameter vertical joint flash formula explosion proof door, including the outline border that is arranged on well head ground, it is characterised in that：It is described outer
The horizontal of frame wears that face is rounded, and the longitudinal section of outline border is low in middle part, the left and right sides is high, and between the middle part and the left and right sides of outline border
It is bevel edge；Crossbeam is arranged in top in the middle part of the outline border, and the rear and front end of crossbeam stretches out outline border and passes through upright supports
Semicircular door-plate is respectively articulated on well head ground, at left and right sides of crossbeam, two pieces of door-plates are correspondingly arranged at an outline border left side respectively
On the bevel edge of right both sides；Actuating unit is connected in one end of the upper support driving shaft and driven shaft of the crossbeam, driving shaft,
One group of crank geared linkage mechanism is all connected on driving shaft and transmission shaft, two groups of crank geared linkage mechanisms are arranged symmetrically, every group
Crank gear link mechanism includes two sector gears, two cranks, two connecting rods, one of which crank gear link mechanism
Two sector gears be connected to the both ends of driving shaft, two sector gears of another group of crank geared linkage mechanism be connected to from
The both ends of moving axis, the sector gear on driving shaft are meshed with the sector gear on driven shaft, one end of each crank respectively with
Corresponding sector gear connection, the other end of each crank is hinged with corresponding connecting rod one end respectively, the other end of every connecting rod
It is hinged with corresponding door-plate respectively；One group of pulley yoke is installed on well head ground, pulley yoke is located therein the side of one piece of door-plate,
Pulley is supported on pulley yoke, the door-plate connecting steel wire ropes far from pulley yoke, steel wire rope is around pulley and other end connection counterweight
Counterweight.
2. major diameter vertical joint flash formula explosion proof door according to claim 1, it is characterised in that：The setting table on the column
Shoulder, the crossbeam are arranged on the shoulder of column, and spring is nested on the column above crossbeam, the top of spring be equipped with
The nut that column is threadedly coupled.
3. major diameter vertical joint flash formula explosion proof door according to claim 2, it is characterised in that：The column has four, wherein
Two root posts are located at the front end of crossbeam, and in addition two root posts are located at the rear end of crossbeam.
4. major diameter vertical joint flash formula explosion proof door according to claim 1, it is characterised in that：It is connected above the crossbeam slow
Bearing is rushed, hydraulic bjuffer, the top difference of the piston rod of each hydraulic bjuffer are separately connected at left and right sides of cushioning support-saddle
Towards corresponding door-plate.
5. major diameter vertical joint flash formula explosion proof door according to claim 1, it is characterised in that：The actuating unit includes successively
One end of motor, speed reducer, the electromagnetic clutch of connection, electromagnetic clutch and driving shaft connects, and motor passes through motor cabinet and cross
Beam is fixed, and speed reducer is fixed by retarder rack with crossbeam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820447655.7U CN208089347U (en) | 2018-04-02 | 2018-04-02 | A kind of major diameter vertical joint flash formula explosion proof door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820447655.7U CN208089347U (en) | 2018-04-02 | 2018-04-02 | A kind of major diameter vertical joint flash formula explosion proof door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208089347U true CN208089347U (en) | 2018-11-13 |
Family
ID=64057384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820447655.7U Active CN208089347U (en) | 2018-04-02 | 2018-04-02 | A kind of major diameter vertical joint flash formula explosion proof door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208089347U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533318A (en) * | 2018-04-02 | 2018-09-14 | 扬州市江隆矿业设备有限公司 | A kind of major diameter vertical joint flash formula explosion proof door |
| CN111425236A (en) * | 2020-03-05 | 2020-07-17 | 河南理工大学 | Mechanical replacement type mine explosion door |
-
2018
- 2018-04-02 CN CN201820447655.7U patent/CN208089347U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533318A (en) * | 2018-04-02 | 2018-09-14 | 扬州市江隆矿业设备有限公司 | A kind of major diameter vertical joint flash formula 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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| GR01 | Patent grant |