CN102251791B - Folded ventilation duct assembly - Google Patents
Folded ventilation duct assembly Download PDFInfo
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- CN102251791B CN102251791B CN 201110164506 CN201110164506A CN102251791B CN 102251791 B CN102251791 B CN 102251791B CN 201110164506 CN201110164506 CN 201110164506 CN 201110164506 A CN201110164506 A CN 201110164506A CN 102251791 B CN102251791 B CN 102251791B
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- ventilation duct
- air duct
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Abstract
The invention discloses a folded ventilation duct assembly comprising a guide rail, a corrugated ventilation duct and a drive assembly, wherein the corrugated ventilation duct is arranged at the guide rail and can be folded and unfolded along an axial direction; the guide rail is fixedly arranged at a roadway and the front end of the guide rail is located at a tunneling end of the roadway; the drive assembly comprises a fixed pulley, a power plant and a stay cable; and a driving wheel arranged at a rotating power takeoff end of the power plant is used for driving the corrugated ventilation duct to be folded and unfolded along the guide rail and is in running fit with the rotating power takeoff end of the power plant. In the invention, the stretching range is not limited by the structure; during blasting, the corrugated ventilation duct is in a folded state and farther away from a shot point, and at the instant when the blasting is completed, the corrugated ventilation duct is stretched forward; the front end of the corrugated ventilation duct reaches the most front end of the roadway so that a better effect of sucking out dust and harmful gas is achieved; a rigid structure of a ventilation duct in the prior art is changed so that the advantages of light weight, small volume, convenience for installation, use and transportation, and lower manufacturing cost are achieved; and flying rocks and blast waves generated during the blasting can be effectively kept off and buffered so that the service life of the ventilation duct is prolonged.
Description
Technical field
The present invention relates to a kind ofly for the tunnelling ventilation equipment, particularly a kind of packaged type air duct belongs to the well lane engineering technology.
Background technology
Explosion is the comparatively general means of tunnelling, has the higher characteristics of efficient.Because explosion is the energy that utilizes the explosive blasting instantaneous relase, destroy its medium on every side, reach excavation, fill, the technological means of the specific objective such as dismounting or feeding, thereby can produce larger dust, simultaneously, also can produce more toxic and harmful in the explosion tunneling process, particularly for coal mine roadway, the harm of dust and pernicious gas is then more outstanding.In order to protect operator's health of human body, increase work efficiency, dust and gas that explosion produces in time need to be discharged the tunnel.For addressing the above problem, the technological means that generally adopts is the air duct air draft.Namely utilize dust that air duct and blower fan produce explosion etc. to be attracted to discharge by air duct.The content of dust and pernicious gas in the reduction tunnel.
In the prior art, the air duct that is used for the tunnelling ventilation often places bottom, middle part or the middle and upper part in tunnel, all adopts to be fixedly installed, and blasting flyrock and shock wave easily destroy air duct.For avoiding the problems referred to above, air duct is placed the top, tunnel, avoid or reduce blasting flyrock clashing into although be beneficial to, can't avoid the impact of shock wave, reduce the application life of air duct, increase use cost.For addressing the above problem, a series of movement or Telescopic air duct structure occur, but be subjected to structural limitations, flexible or distance is shorter, can't avoid the impact of blasting flyrock etc. fully.
And existing air duct is hard structure, can not the buffer shooting slungshot and the impact of shock wave, very easily damage, and shape deformation is comparatively serious after damaging, and can't continue to use, and has increased the cost of tunnelling; And volume is larger, and weight is large, is unfavorable for installing, use and transporting.
Therefore, need to improve existing Wind cylinder structure, has the preferably effect of sucking-off dust and pernicious gas, has the wider distance of hiding, can avoid or slungshot and shock wave that buffer shooting produces, prolong the application life of air duct, save use cost, and overall weight is light, volume is little, conveniently installs, uses and transport.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of folded ventilation duct assembly, has the preferably effect of sucking-off dust and pernicious gas, has the wider distance of hiding, can avoid or slungshot and shock wave that buffer shooting produces, prolong the application life of air duct, save use cost, and overall weight is light, volume is little, conveniently installs, uses and transport.
Folded ventilation duct assembly of the present invention comprises guided way, ripple air duct and driven unit, and described ripple air duct is arranged at guided way and can folds vertically and stretch, and described guided way is fixedly installed on the tunnel and its front end is positioned at the tunnelling end;
Described driven unit comprises fixed pulley, power set and drag-line, described fixed pulley is positioned at the tunnelling end, power set are positioned at the rear end, tunnel, described power set are provided with the rotary power output, cooperate with its rotary power output transmission to be provided with for driving the driving wheel that the ripple air duct is folding along guided way and stretch.
Further, the rear end, tunnel is positioned at the top and is provided with trussed construction, and described guided way front end is fixed in tunnelling end top, and the trussed construction front end is fixed in the rear end, described ripple air duct tail end is fixedly installed on the trussed construction front end, and guided way passes the ripple air duct vertically makes the ripple air duct be hung on guided way;
Further, described trussed construction is provided with the fixedly air duct that docks with ripple air duct tail end;
Further, described ripple air duct is made by flexible material, and its front-end and back-end are respectively the sclerosphere mouth;
Further, described guided way is guide line, and described trussed construction front end is fixedly installed the regulating wheel of click structure, and described guide line front end is fixed in tunnelling end top, and the rear end is connected in regulating wheel; Described guide line has the guide pipe of smooth outer surface for the rope section overcoat that hangs the ripple air duct;
Further, described power set and driving wheel are arranged in the casing, the power output shaft two end supports of power set in casing and with its cooperating around the mode that self axis rotates, described driving wheel is coated at power output shaft and cooperates with its transmission;
Further, described driving wheel is divided into front wheel driving roller and rear drive roller, and described drag-line comprises drag-line I and drag-line II, and ripple air duct front end is connected in the front wheel driving roller by the drag-line I that walks around fixed pulley, and ripple air duct rear end is connected in the rear drive roller by drag-line II; Described drag-line I is around in the opposite direction that front wheel driving roller and drag-line II are around in the rear drive roller;
Described front wheel driving roller is arranged at the power output shaft of power set by freewheel clutch I, described rear drive roller is arranged at the power output shaft of power set by freewheel clutch II, described freewheel clutch I and freewheel clutch II engagement opposite direction;
Further, described drag-line one end is connected in ripple air duct front end, and the other end is connected in ripple air duct rear end after walking around successively fixed pulley and driving wheel; Described drag-line is around in driving wheel at least two circles;
Further, described power set are air motor, are provided be used to the reversal valve that makes air motor rotating conversion between described air motor and the driving source of the gas;
Further, described power set are explosion-proof drive motors.
The invention has the beneficial effects as follows: folded ventilation duct assembly of the present invention, adopt folding ripple Wind cylinder structure, flexible scope is not subjected to structural limitations, during explosion, the ripple air duct is in folded state and is positioned at the rear end, tunnel, can be far away apart from blow-up point, the moment that explosion is finished stretches the ripple air duct forward, its front end be used for to be discharged dust and pernicious gas to the tunnel foremost, has the preferably effect of sucking-off dust and pernicious gas; The present invention has changed the hard structure of prior art air duct, and is lightweight, volume is little, conveniently installs, uses and transport, and cost of manufacture is lower; Not only can make air duct avoid slungshot and shock wave that explosion produces, can also effectively cushion the destruction of slungshot and shock wave, prolong the application life of air duct, save use cost.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the tension wheel structure schematic diagram;
Fig. 3 is driven unit the first structural representation;
Fig. 4 is driven unit the second structural representation;
Fig. 5 control principle drawing of the present invention.
The specific embodiment
Fig. 1 is structural representation of the present invention, Fig. 2 is the tension wheel structure schematic diagram, Fig. 3 is driven unit the first structural representation, Fig. 5 control principle drawing of the present invention, as shown in the figure: the folded ventilation duct assembly of the present embodiment, comprise guided way, ripple air duct 1 and driven unit, described ripple air duct 1 is arranged at guided way and can folds vertically and stretch, and described guided way is fixedly installed on the tunnel and its front end is positioned at tunnel 11 driving ends;
Described driven unit comprises fixed pulley 7, power set 18 and drag-line 2, described fixed pulley 7 is positioned at tunnel 11 driving ends, power set 18 are positioned at 11 rear ends, tunnel, described power set 18 are provided with the rotary power output, cooperate with its rotary power output transmission to be provided with for driving the driving wheel 15 that ripple air duct 1 is folding along guided way and stretch.
In the present embodiment, 11 rear ends, tunnel are positioned at the top and are provided with trussed construction 4, described guided way front end is fixed in 11 driving end tops, tunnel, trussed construction 4 front ends are fixed in the rear end, described ripple air duct 1 tail end is fixedly installed on trussed construction 4 front ends, and guided way passes ripple air duct 1 vertically makes ripple air duct 1 be hung on guided way; Adopt trussed construction 4, so that the present invention has the mounting structure than firm stable, be convenient to install the parts such as driven unit and support guide rail.
In the present embodiment, described trussed construction 4 is provided with the fixedly air duct 6 that docks with ripple air duct 1 tail end; Further expand air draft distance of the present invention, pernicious gas and dust are discharged smoothly in the assurance tunnel.
In the present embodiment, described ripple air duct 1 is made by flexible material, and its front-end and back-end are respectively the sclerosphere mouth, are respectively sclerosphere mouth 1a and sclerosphere mouth 1b among the figure; Flexible material weight is lighter, more can be adapted to install and use in the tunnel and carry; And flexible material has better buffering effect to the impact of slungshot and shock wave; The sclerosphere mouth can guarantee the intensity of ripple air duct, is beneficial to air draft.
In the present embodiment, described guided way is guide line 9, described trussed construction 4 front ends are fixedly installed the regulating wheel 3 of click structure, described guide line 9 front ends are fixed in 11 driving end tops, tunnel, the rear end is connected in regulating wheel 3, as shown in the figure, the click structure comprises ratchet 14, ratchet 12 and support 13, support 13 is fixedly installed on trussed construction 4, ratchet 12 is articulated in support, ratchet 14 and regulating wheel 3 are in the circumferencial direction secure fit, and ratchet 12 meshes with ratchet 14 opposite with regulating wheel 3 tension direction; Described guide line 9 has the guide pipe 10 of smooth outer surface for the rope section overcoat that hangs ripple air duct 1; Adopt the guide line structure, further increase its shock resistance, and be beneficial to and carry and install; Guide pipe 10 can reduce ripple air duct and its frictional force, so that the ripple air duct is folding and stretch smooth and easy without hindrancely, saves drive energy, makes the air draft process smooth.
In the present embodiment, described power set 18 and driving wheel 15 are arranged in the casing 17, power output shaft 16 two end supports of power set 18 in casing 17 and with its cooperating around the mode that self axis rotates, described driving wheel 15 is coated at power output shaft 16 and cooperates with its transmission; Be arranged to be beneficial in the casing 17 and avoid impacting, and be beneficial to dustproofly, guarantee to keep clean between the kinematic pair of moving component.
In the present embodiment, described drag-line 2 one ends are connected in ripple air duct 1 front end, and the other end is connected in ripple air duct 1 rear end after walking around successively fixed pulley 7 and driving wheel 5; Described drag-line 2 is around in driving wheel 5 at least two circles, and the present embodiment is two circles; Simple in structure, installing/dismounting is easy, drives comparatively flexible.
In the present embodiment, described power set 18 are air motor, are provided be used to the reversal valve 23 that makes air motor rotating conversion between described air motor and the driving source of the gas 22, also are provided with flow speed control valve 21 between reversal valve and the source of the gas 22; Reversal valve 23 adopts manual reverse of direction, can adopt any structure of prior art, comprises three way cock, three position four-way directional control valve etc.; Namely adopt three position four-way directional control valve in the present embodiment; The employing air motor drives, and is beneficial to explosion-proofly, and source of the gas easily obtains, and the drive system overall volume is less, and use cost is low.
Certainly, power set 18 also can adopt explosion-proof drive motors, and installation and removal are simple, and equipment volume is little, does not need other ancillary service.
Fig. 4 is driven unit the second structural representation, as shown in the figure, only be with the difference of the first structure: the described driving wheel of this structure is divided into front wheel driving roller 15a and rear drive roller 15b, be arranged in the casing 17a, described drag-line 2 comprises drag-line I 2a and drag-line II 2b, ripple air duct 1 front end is connected in front wheel driving roller 15a by the drag-line I 2a that walks around fixed pulley 7, and ripple air duct 1 rear end is connected in rear drive roller 15b by drag-line II 2b; Described drag-line I 2a is around in the opposite direction that front wheel driving roller 15a and drag-line II 2b are around in rear drive roller 15b; Described front wheel driving roller 15a is arranged at the power output shaft 16 of power set 18 by freewheel clutch I 19, described rear drive roller 15b is arranged at the power output shaft 16 of power set 18 by freewheel clutch II 20, described freewheel clutch I 19 and freewheel clutch II 20 engagement opposite directions; Adopt the fit structure of freewheel clutch, passive drag-line can initiatively be discharged, avoid motion artifacts, can guarantee the tensioning characteristic of drag-line by long period, thereby guarantee the flexibility of operation.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (8)
1. folded ventilation duct assembly, it is characterized in that: comprise guided way, ripple air duct and driven unit, described ripple air duct is arranged at guided way and can folds vertically and stretch, and described guided way is fixedly installed on the tunnel and its front end is positioned at the tunnelling end;
Described driven unit comprises fixed pulley, power set and drag-line, described fixed pulley is positioned at the tunnelling end, power set are positioned at the rear end, tunnel, described power set are provided with the rotary power output, cooperate with its rotary power output transmission to be provided with for driving the driving wheel that the ripple air duct is folding along guided way and stretch;
Described driving wheel is divided into front wheel driving roller and rear drive roller, and described drag-line comprises drag-line I and drag-line II, and ripple air duct front end is connected in the front wheel driving roller by the drag-line I of walking around fixed pulley, and ripple air duct rear end is connected in the rear drive roller by the drag-line II; Described drag-line I is around in the opposite direction that front wheel driving roller and drag-line II are around in the rear drive roller;
Described front wheel driving roller is arranged at the power output shaft of power set by the freewheel clutch I, described rear drive roller is arranged at the power output shaft of power set by the freewheel clutch II, described freewheel clutch I and freewheel clutch II engagement opposite direction.
2. folded ventilation duct assembly according to claim 1, it is characterized in that: the rear end, tunnel is positioned at the top and is provided with trussed construction, described guided way front end is fixed in tunnelling end top, the trussed construction front end is fixed in the rear end, described ripple air duct tail end is fixedly installed on the trussed construction front end, and guided way passes the ripple air duct vertically makes the ripple air duct be hung on guided way.
3. folded ventilation duct assembly according to claim 2, it is characterized in that: described trussed construction is provided with the fixedly air duct that docks with ripple air duct tail end.
4. folded ventilation duct assembly according to claim 3, it is characterized in that: described ripple air duct is made by flexible material, and its front-end and back-end are respectively the sclerosphere mouth.
5. folded ventilation duct assembly according to claim 4, it is characterized in that: described guided way is guide line, described trussed construction front end is fixedly installed the regulating wheel of click structure, and described guide line front end is fixed in tunnelling end top, and the rear end is connected in regulating wheel; Described guide line has the guide pipe of smooth outer surface for the rope section overcoat that hangs the ripple air duct.
6. folded ventilation duct assembly according to claim 5, it is characterized in that: described power set and driving wheel are arranged in the casing, the power output shaft two end supports of power set in casing and with its cooperating around the mode that self axis rotates, described driving wheel is coated at power output shaft and cooperates with its transmission.
7. according to claim 1 to the described folded ventilation duct assembly of 6 arbitrary claims, it is characterized in that: described power set are air motor, are provided be used to the reversal valve that makes air motor rotating conversion between described air motor and the driving source of the gas.
8. according to claim 1 to the described folded ventilation duct assembly of 6 arbitrary claims, it is characterized in that: described power set are explosion-proof drive motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110164506 CN102251791B (en) | 2011-06-17 | 2011-06-17 | Folded ventilation duct assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110164506 CN102251791B (en) | 2011-06-17 | 2011-06-17 | Folded ventilation duct assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102251791A CN102251791A (en) | 2011-11-23 |
| CN102251791B true CN102251791B (en) | 2013-10-23 |
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ID=44979328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110164506 Expired - Fee Related CN102251791B (en) | 2011-06-17 | 2011-06-17 | Folded ventilation duct assembly |
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| Country | Link |
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| CN (1) | CN102251791B (en) |
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| CN103321668B (en) * | 2013-07-08 | 2015-04-29 | 中煤科工集团重庆研究院有限公司 | Automatic control device for extending and retracting framework air cylinder |
| CN105134277A (en) * | 2015-07-16 | 2015-12-09 | 武汉大学 | Free telescopic tube head device for ventilation of tunnel |
| CN106761899B (en) * | 2017-01-25 | 2019-02-22 | 徐州徐工基础工程机械有限公司 | A kind of tunnel dust removal machine |
| CN107255040B (en) * | 2017-07-18 | 2023-08-15 | 中国煤炭科工集团太原研究院有限公司 | Air duct moving device for rapid tunneling of coal mine |
| CN112497565A (en) * | 2019-09-16 | 2021-03-16 | 天津纽威特橡胶制品股份有限公司 | Air-cooled cold glue machine |
| CN112502778B (en) * | 2020-11-29 | 2023-08-25 | 重庆梅安森科技股份有限公司 | Active blasting energy-absorbing device for air duct |
| CN112502779B (en) * | 2020-11-29 | 2023-08-25 | 重庆梅安森科技股份有限公司 | Active blasting energy-absorbing vehicle for air duct |
| CN113586122A (en) * | 2021-08-18 | 2021-11-02 | 安徽理工大学 | Colliery is combined and is dug working face low windage low noise dryer device |
| CN113622985B (en) * | 2021-09-23 | 2023-09-19 | 陕西竹园嘉原矿业有限公司 | Fan assembly for dedusting in mine tunnel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0066000A1 (en) * | 1981-06-02 | 1982-12-08 | Oldorid Kunststoff GmbH | Extension unit for a ventilation tubing |
| CN2594467Y (en) * | 2002-12-27 | 2003-12-24 | 林亚坤 | Telescopic mining ventilating tunnel |
| WO2007081216A1 (en) * | 2006-01-10 | 2007-07-19 | Protan A/S | Method and system for venting tunnels; mine galleries or the like |
| CN201747395U (en) * | 2010-08-30 | 2011-02-16 | 泰州海本蓬网有限公司 | Air duct |
-
2011
- 2011-06-17 CN CN 201110164506 patent/CN102251791B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0066000A1 (en) * | 1981-06-02 | 1982-12-08 | Oldorid Kunststoff GmbH | Extension unit for a ventilation tubing |
| CN2594467Y (en) * | 2002-12-27 | 2003-12-24 | 林亚坤 | Telescopic mining ventilating tunnel |
| WO2007081216A1 (en) * | 2006-01-10 | 2007-07-19 | Protan A/S | Method and system for venting tunnels; mine galleries or the like |
| CN201747395U (en) * | 2010-08-30 | 2011-02-16 | 泰州海本蓬网有限公司 | Air duct |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102251791A (en) | 2011-11-23 |
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