CN111365057A - Pneumatic dynamic regulating and controlling device for wind flow field of fully-mechanized excavating face - Google Patents
Pneumatic dynamic regulating and controlling device for wind flow field of fully-mechanized excavating face Download PDFInfo
- Publication number
- CN111365057A CN111365057A CN202010272038.XA CN202010272038A CN111365057A CN 111365057 A CN111365057 A CN 111365057A CN 202010272038 A CN202010272038 A CN 202010272038A CN 111365057 A CN111365057 A CN 111365057A
- Authority
- CN
- China
- Prior art keywords
- wind
- air outlet
- regulation
- cylinder
- pneumatic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 34
- 230000001276 controlling effect Effects 0.000 title claims description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 58
- 238000009412 basement excavation Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 22
- 239000003245 coal Substances 0.000 claims description 13
- 238000005065 mining Methods 0.000 claims description 2
- 230000005641 tunneling Effects 0.000 abstract description 20
- 239000000428 dust Substances 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 15
- 238000009423 ventilation Methods 0.000 description 15
- 230000008859 change Effects 0.000 description 3
- 230000005012 migration Effects 0.000 description 3
- 238000013508 migration Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
Images
Classifications
-
- 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
- E21F1/006—Ventilation at the working face of galleries or tunnels
-
- 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
- E21F1/04—Air ducts
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Wind Motors (AREA)
Abstract
A pneumatic dynamic regulation and control device for a fully-mechanized excavation face wind flow field comprises a linear track and a controllable wind cylinder device, wherein the controllable wind cylinder device comprises a wind cylinder air outlet front-back distance regulation and control mechanism, the wind cylinder air outlet front-back distance regulation and control mechanism is arranged between an air outlet of the controllable wind cylinder device and the linear track, the wind cylinder air outlet front-back distance regulation and control mechanism is used for driving an air outlet of the controllable wind cylinder device to move back and forth along the linear track, an upper elevation angle regulation and control mechanism and a lower elevation angle regulation and control mechanism of the wind cylinder air outlet angle are used for regulating the upper angle and the lower angle of the wind cylinder device air outlet, the wind cylinder air outlet caliber regulation and control mechanism is used for regulating the caliber of the wind outlet of the controllable wind cylinder device, and the wind cylinder air outlet; the invention effectively reduces the dust concentration and dilutes the gas, so that the working process of the fully-mechanized excavating face tunneling production is safer, more green and more efficient.
Description
Technical Field
The invention relates to the technical field of coal mine excavation, in particular to a pneumatic dynamic regulation and control device for a fully-mechanized excavation face wind flow field.
Background
At present, the direction angle of an air outlet of an air duct on a coal mine fully-mechanized excavation working surface, the aperture of the air duct and the front and back displacement cannot be dynamically regulated in real time, so that the air flow and the air speed in an excavation roadway are unreasonably distributed, gas and dust are accumulated, and the environmental pollution risk is aggravated.
Because the coal mine safety regulation only stipulates the reasonable wind speed range of the tunneling working face and the distance between the air outlet and the end, the mode of solving the ventilation requirement of the tunneling working face under various working conditions in the coal mine is to implement local ventilation control, namely to continuously increase the power of a local ventilator and change the motion state of an air duct. And the air volume of the driving face is excessively increased, so that secondary dust raising and the local air speed of a working area are easily caused to be too high, and the working conditions of a driver and other positions are deteriorated.
The forced ventilation of the tunneling roadway is limited by wall-attached jet ventilation, and different from free jet ventilation, after air flow is ejected from an air cylinder, the air flow flows in the direction opposite to the direction of the air flow due to the limitation of the space of the single-headed roadway. The jet flow ventilation air flow structure of the tunneling working face can be divided into a jet flow area, a backflow area and a vortex area. A part of the airflow in the jet area is jetted from the air duct, and simultaneously a part of the airflow in the reflux area is sucked; and a part of the airflow in the backflow area is sucked by the jet flow, and a part of the airflow is discharged from the outlet along the tunneling roadway. Therefore, the problems of coal seam gas content increase and the like caused by the increase of the length of the coal roadway, the increase of the sectional area of the roadway, the change of the tunneling mode, the increase of the propelling speed, the use of large equipment and the increase of the mine depth can increase the requirement on the local ventilation quantity of the coal roadway tunneling, and the traditional rough type local ventilation control mode of total ventilation quantity cannot meet the more severe safety, high efficiency and environmental protection requirements of people on the fully-mechanized coal face. This requires comprehensive, comprehensive and fine management of the mutual coupling process of the tunneling ventilation and the gas and coal dust transport. Along with the progress of technology, the adjustable wind cylinder that dryer air outlet bore, angle can be adjusted has appeared, but current adjustable wind cylinder need pass through manual regulation, has to adjust inconvenient, the not high scheduling problem of fineness. Therefore, it is necessary to design a dynamic regulation and control device for the fully-mechanized excavation face wind field.
Along with the continuous increase of the depth of a coal mine tunneling roadway, the current ventilation total amount control mode under the 'extensive' management is easy to cause serious exceeding of the local gas and dust of a tunneling surface due to insufficient air volume or unreasonable air flow distribution, so that the potential safety hazard of tunneling operation is increased, and the physical and mental health of underground operators and the safety production of coal mines are seriously influenced.
The ventilation mode widely adopted by the fully-mechanized excavating face at present is a press-in type ventilation system consisting of a local ventilator and an air duct. The ventilator is mostly installed in a large roadway, the wind flow is pressed into the fully-mechanized excavating face through the wind barrel installed on the side wall of the roadway, when the fresh wind flow is pressed into the wind barrel and is ejected out through the wind barrel air outlet, because the wall surface of the roadway is closer to a boundary layer in a jet flow area, the development and diffusion of the boundary layer in the jet flow area are limited, and the partial ventilation of the fully-mechanized excavating face is insufficient.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a pneumatic dynamic regulation and control device for a fully-mechanized excavation face air flow field.
In order to achieve the purpose, the invention adopts the technical scheme that:
a pneumatic dynamic regulation and control device for a fully-mechanized excavation face wind flow field comprises a linear track and an adjustable wind cylinder device, wherein the adjustable wind cylinder device is arranged below the linear track, an air outlet of the adjustable wind cylinder device can move back and forth along the linear track, the adjustable wind cylinder device comprises a wind cylinder air outlet front and back distance regulation and control mechanism, a wind cylinder air outlet angle upper and lower elevation angle regulation and control mechanism, a wind cylinder air outlet caliber regulation and control mechanism and a wind cylinder air outlet horizontal deflection regulation and control mechanism, the wind cylinder air outlet front and back distance regulation and control mechanism is arranged between an air outlet of the adjustable wind cylinder device and the linear track, the wind cylinder air outlet front and back distance regulation and control mechanism is used for driving the air outlet of the adjustable wind cylinder device to move back and forth along the linear track, and the wind cylinder air outlet angle upper and lower elevation angle regulation and control mechanism is used for regulating and changing, the air duct air outlet caliber regulating mechanism is used for regulating the caliber of the air outlet of the adjustable air duct device, and the air duct air outlet horizontal deflection regulating mechanism is used for regulating the horizontal deflection angle of the air outlet of the adjustable air duct device;
the distance regulation and control mechanism around dryer air outlet includes drive arrangement pneumatic motor 7, transmission shaft 19, drive gear 23, rack 9, first follow driving wheel 26, the second follows driving wheel 27, encoder 24, first mounting panel 25, second mounting panel 8 and connecting rod 20, first installation curb plate 25 and the equal vertical setting of second installation curb plate 8, first installation curb plate 25 and the symmetrical setting of second installation curb plate 8, connecting rod 20 sets up the lower part between first mounting panel 25 and second mounting panel 8, drive arrangement pneumatic motor 7 fixed mounting is in the outside of second mounting panel 8, encoder 24 fixed mounting is in the outside of first mounting panel 25, pass second mounting panel 8 after the one end of transmission shaft 19 with drive arrangement pneumatic motor 7's output shaft fixed connection, pass behind the first mounting panel 25 with the input pivot fixed connection of encoder 24 of the other end of transmission shaft 19, the transmission gear 23 is fixedly installed on the transmission shaft 19 and is located between the first installation plate 25 and the second installation plate 8, the transmission gear 23 is meshed with the rack 9 to drive the first driven wheel 26 and the second driven wheel 27, the rack 9 is installed on the guide rail 10, and the first driven wheel 26 and the second driven wheel 27 are used for being connected with a front-rear distance adjusting mechanism of an air outlet of the air duct.
One end and the first mounting panel 25 fixed connection of connecting rod 20, the other end and the second mounting panel 8 fixed connection of connecting rod 20, first follow driving wheel 26 and second follow driving wheel 27 set up between first mounting panel 25 and second mounting panel 8.
The front-rear distance regulating and controlling mechanism of the air duct air outlet comprises a front limit switch 4 and a rear limit switch 12, the front limit switch 4 is fixedly installed on the front portion of the outer side of the guide rail 10, the rear distance regulating and controlling limit switch 12 is fixedly installed on the rear portion of the outer side of the guide rail 10, and the front-rear distance regulating and controlling mechanism of the air duct air outlet provides power through an air pressure motor 7.
The adjustable and controllable air duct device comprises a blade fixing ring 39, an air duct middle frame 17 and a movable connecting device 22, the upper end of the movable connecting device 22 is fixedly connected with a connecting rod 20, the movable connecting device 22 is sleeved on the air duct middle frame 17, the movable connecting device 22 is connected with the air duct middle frame 17 through a bearing 21, and the bearing 21 enables the air duct middle frame 17 to rotate left and right relative to the movable connecting device 22.
The up-down angle control mechanism of the wind barrel air outlet comprises an upper wind barrel air cylinder 6, a lower wind barrel air cylinder 18, a bottom air cylinder hinge 36 of a blade fixing ring 39 and a wind barrel middle frame 17.
The upper and lower inclined upper pneumatic cylinders 6 and the upper and lower inclined lower pneumatic cylinders 18 of the air duct are symmetrically arranged up and down.
The horizontal deflection regulating and controlling mechanism of the air duct air outlet comprises a first pneumatic cylinder 15 for horizontal deflection of the air duct, a second pneumatic cylinder 16 for horizontal deflection of the air duct and a rear frame 37, one ends of the two pneumatic cylinders are fixedly installed in the middle of the rear frame 37, and the other ends of the two pneumatic cylinders are hinged with a middle frame 17.
The blade fixing ring 39, the air duct middle frame 17 and the rear frame 37 are of circular ring structures.
The front end of the blade fixing ring 39 is provided with an inner blade 31 and an outer blade 32, and one end of the inner blade 31 and one end of the outer blade 32 are hinged on the blade fixing ring 39.
The number of the inner blades 31 and the outer blades 32 is multiple, the blades are sequentially overlapped inside and outside to form an air duct air outlet with the caliber adjustable, the air duct air outlet is of a conical structure, and the diameter of the connecting end of each blade and the blade fixing ring 39 is larger than that of the connecting end.
The air duct air outlet caliber regulating mechanism comprises a linear pushing cylinder mechanism 29, a connecting seat 33, an inner blade pull rod 30 and an outer blade pull rod 34, one end of the linear pushing cylinder 29 is connected with a pull rod connecting ring 2 and can push the pull rod connecting ring 2 to move back and forth, and the other end of the linear pushing cylinder is fixedly installed on a stand column in the middle of a blade fixing ring 39 frame.
The invention has the beneficial effects that:
according to the invention, by adjusting the distance from the air outlet of the air duct to the tunneling end face, the aperture of the air duct and the direction angle, compared with an original field, the air flow, the gas and the dust are regulated and controlled to achieve the optimal migration distribution, the dust concentration is effectively reduced, the gas is diluted, and the fully-mechanized tunneling face tunneling production process is safer, greener and more efficient. Aiming at the problem that the air outlet of an air duct in the tunneling tunnel cannot be dynamically changed in real time at present, a pneumatic dynamic intelligent regulating and controlling device installed at the air outlet of the air duct is researched to meet the requirement of dynamically regulating and controlling the air flow of the air outlet in real time at different tunneling stages, so that the optimal migration distribution of an air flow field, a dust field and a gas field is achieved.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic perspective view of the mechanism for adjusting the distance between the front and rear of the air outlet of the air duct.
FIG. 3 is a schematic view showing the installation relationship between the upper, lower, left and right angle adjusting mechanism and the opening and closing part of the blades.
FIG. 4 is a diagram of the installation position of the opening and closing part of the blades at the air outlet of the wind barrel.
1-a blade; 2-a pull rod connecting ring; 3-a connecting rod; 4-a front limit switch; 5-a blade fixing ring; 6-the upper part and the lower part of the air duct are deviated from the upper air cylinder; 7-pneumatic motor; 8-a second mounting side plate; 9-a rack; 10-a guide rail; 11-a sliding trolley of the telescopic air duct; 12-a rear limit switch; 13-the rear end of the telescopic air duct; 14-the front end of a telescopic air duct; 15-the air duct horizontally deflects the first pneumatic cylinder; 16-a second pneumatic cylinder with a horizontal deflection air duct; 17-a wind barrel middle frame; 18-the upper part and the lower part of the air duct are inclined to the lower part; 19-a drive shaft; 20-a connecting rod; 21-a bearing; 22-an articulating mechanism; 23-a transmission gear; 24-an encoder; 25-a first mounting side plate; 26-a first driven wheel; 27-a second driven wheel; 28-connecting lugs; 29-straight line pushing cylinder; (ii) a 30-inner blade tension rod; 31-inner leaf; 32-outer leaf; 33-a connecting seat; 34-outer blade tie rod; 35-a hinge; 36-cylinder hinge joint; 37-rear frame; 38-connecting plate; 39-blade fixing ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, fig. 2, fig. 3: the distance regulation and control mechanism around dryer air outlet includes drive arrangement pneumatic motor 7, transmission shaft 19, drive gear 23, rack 9, first follow driving wheel 26, the second follows driving wheel 27, encoder 24, first mounting panel 25, second mounting panel 8 and connecting rod 20, first installation curb plate 25 and the equal vertical setting of second installation curb plate 8, first installation curb plate 25 and the symmetrical setting of second installation curb plate 8, connecting rod 20 sets up the lower part between first mounting panel 25 and second mounting panel 8, drive arrangement pneumatic motor 7 fixed mounting is in the outside of second mounting panel 8, encoder 24 fixed mounting is in the outside of first mounting panel 25, pass second mounting panel 8 after the one end of transmission shaft 19 with drive arrangement pneumatic motor 7's output shaft fixed connection, pass behind the first mounting panel 25 with the input pivot fixed connection of encoder 24 of the other end of transmission shaft 19, the transmission gear 23 is fixedly installed on the transmission shaft 19 and is located between the first installation plate 25 and the second installation plate 8, the transmission gear 23 is meshed with the rack 9 to drive the first driven wheel 26 and the second driven wheel 27, the rack 9 is installed on the guide rail 10, and the first driven wheel 26 and the second driven wheel 27 are used for being connected with a front-rear distance adjusting mechanism of an air outlet of the air duct.
One end and the first mounting panel 25 fixed connection of connecting rod 20, the other end and the second mounting panel 8 fixed connection of connecting rod 20, first follow driving wheel 26 and second follow driving wheel 27 set up between first mounting panel 25 and second mounting panel 8.
The front-rear distance regulating and controlling mechanism of the air duct air outlet comprises a front limit switch 4 and a rear limit switch 12, the front limit switch 4 is fixedly installed on the front portion of the outer side of the guide rail 10, the rear distance regulating and controlling limit switch 12 is fixedly installed on the rear portion of the outer side of the guide rail 10, and the front-rear distance regulating and controlling mechanism of the air duct air outlet provides power through an air pressure motor 7.
The adjustable and controllable air duct device comprises a blade fixing ring 39, an air duct middle frame 17 and a movable connecting device 22, the upper end of the movable connecting device 22 is fixedly connected with a connecting rod 20, the movable connecting device 22 is sleeved on the air duct middle frame 17, the movable connecting device 22 is connected with the air duct middle frame 17 through a bearing 21, and the bearing 21 enables the air duct middle frame 17 to rotate left and right relative to the movable connecting device 22.
The up-down angle control mechanism of the wind barrel air outlet comprises an upper wind barrel air cylinder 6, a lower wind barrel air cylinder 18, a bottom air cylinder hinge 36 of a blade fixing ring 39 and a wind barrel middle frame 17.
The upper and lower inclined upper pneumatic cylinders 6 and the upper and lower inclined lower pneumatic cylinders 18 of the air duct are symmetrically arranged up and down.
The horizontal deflection regulating and controlling mechanism of the air duct air outlet comprises a first pneumatic cylinder 15 for horizontal deflection of the air duct, a second pneumatic cylinder 16 for horizontal deflection of the air duct and a rear frame 37, one ends of the two pneumatic cylinders are fixedly installed in the middle of the rear frame 37, and the other ends of the two pneumatic cylinders are hinged with a middle frame 17.
The blade fixing ring 39, the air duct middle frame 17 and the rear frame 37 are of circular ring structures.
The front end of the blade fixing ring 39 is provided with an inner blade 31 and an outer blade 32, and one end of the inner blade 31 and one end of the outer blade 32 are hinged on the blade fixing ring 39.
The number of the inner blades 31 and the outer blades 32 is multiple, the blades are sequentially overlapped inside and outside to form an air duct air outlet with the caliber adjustable, the air duct air outlet is of a conical structure, and the diameter of the connecting end of each blade and the blade fixing ring 39 is larger than that of the connecting end.
The air duct air outlet caliber regulating mechanism comprises a linear pushing cylinder mechanism 29, a connecting seat 33, an inner blade pull rod 30 and an outer blade pull rod 34, one end of the linear pushing cylinder 29 is connected with a pull rod connecting ring 2 and can push the pull rod connecting ring 2 to move back and forth, and the other end of the linear pushing cylinder is fixedly installed on a stand column in the middle of a blade fixing ring 39 frame.
As shown in fig. 4: hinge 35 is passed through to the one end of inner leaf 31 and outer leaf 32 and hinges on blade retainer plate 39, hinge 35 includes first hinge piece, second hinge piece, engaging lug 28, first hinge piece and engaging lug 28 fixed connection, second hinge piece and first for the hinge round pin axle fixed connection, second hinge piece fixed mounting is at the one end middle part of inner leaf 31 and outer leaf 32, and inner leaf 31 and the relative engaging lug 28 of outer leaf 32 can rotate relatively.
The pneumatic dynamic regulation and control device established by the invention can change the air flow state of the air outlet of the air duct by reasonably regulating the direction angle, the caliber and the front and back positions of the air outlet of the air duct of the fully mechanized excavation face, thereby achieving the expected dust settling effect.
Each action mechanism of the invention is driven by air pressure, thus improving the safety of the fully mechanized coal mining face of the coal mine, and the power output is more efficient and faster, so that the power output mechanism is more concise and efficient.
The invention uses the rotary encoder to detect the angle and the position of the front and back distance regulating mechanism, the wind cylinder angle upward-bending mechanism, the wind cylinder air outlet aperture regulating mechanism and the wind cylinder horizontal deflection mechanism, outputs the detection signal to match with the air pressure control system to realize the closed-loop control of the dynamic regulating and controlling device, and can realize the real-time control of the regulating and controlling mechanism at any angle and position through the closed-loop control system of the encoder, so that the control of the whole device is more accurate and flexible.
By adjusting the distance from the air outlet of the air duct to the tunneling end face, the aperture of the air duct and the direction angle, compared with the original field, the air flow, the gas and the dust are regulated and controlled to achieve the optimal migration distribution, the dust concentration is effectively reduced, the gas is diluted, and the working process of the fully-mechanized tunneling face tunneling production is safer, greener and more efficient. The invention has high structural reliability, good stability, high transmission precision and convenient installation; the fully-mechanized excavating face wind field, the gas field and the dust field can be distributed more scientifically and reasonably, the working efficiency is improved, and energy conservation and green ventilation are realized. The working principle of the invention is as follows:
the adjustable air duct device comprises an air duct air outlet front-back distance adjusting and controlling device, wherein a power source part air pressure motor 7 is connected with a transmission gear 23 in a positive and negative rotation mode through a transmission shaft 19, so that the transmission gear 23 is meshed with a rack 9 to drive driven wheels (26, 27) to rotate, the driven wheels (26, 27) are connected with two side plates (8, 25), a movable connecting device 22 is connected with the two side plates (8, 25) through a connecting rod 20, the movable connecting device 22 is connected with an air duct middle frame 17 through a bearing 21, and the air pressure motor rotates to drive the whole air duct device to move back and forth. The upper deflection and the lower deflection of the angle of the air outlet of the whole air duct device are completed through the upper air cylinder 6 and the lower air cylinder 18 of the air duct, and the upper air cylinder 6 and the lower air cylinder 18 of the air duct are contracted and the upper air cylinder 18 and the lower air cylinder 18 of the air duct are extended to complete the upward deflection of the air duct. And the upper and lower inclined upper air cylinders 6 of the air duct extend, and the upper and lower inclined lower air cylinders 18 of the air duct contract to finish downward deflection of the air duct. The regulation and control of the aperture of the air outlet of the air duct is completed by linearly pushing the air cylinder 29 through the prime mover, one end of the linearly pushing air cylinder 29 is connected with the pull rod connecting ring 2 and can push the pull rod connecting ring 2 to move back and forth, the linearly pushing air cylinder 29 is fixedly arranged on a stand column at the middle part of the framework of the blade fixing ring 39, the pull rod connecting ring 2 is connected with the connecting rods (30 and 34), and the connecting rods (30 and 34) are connected with the blades (31 and 32) through the connecting seat 33. The pull rod connecting ring 2 moves forwards and backwards to push the connecting rods (30, 34) to rotate, so that the blades (31, 32) are opened and closed to achieve the purpose of enlarging and reducing the aperture of the air duct. The horizontal deflection of the air outlet of the air duct is completed by a first pneumatic cylinder 15 for horizontal deflection of the air duct and a second pneumatic cylinder 16 for horizontal deflection of the air duct. The wind cylinder middle frame 17 is connected with the movable connecting device 22 through a bearing 21 to achieve the purpose of left-right deflection, the wind cylinder horizontal deflection first pneumatic cylinder 15 contracts, and the wind cylinder horizontal deflection second pneumatic cylinder 16 extends to push the wind cylinder middle frame 17 to deflect rightwards, so that the whole device deflects rightwards. The first pneumatic cylinder 15 for horizontal deflection of the air duct extends, and the second pneumatic cylinder 16 for horizontal deflection of the air duct contracts to push the middle frame 21 of the air duct to deflect leftwards, so that the whole device deflects leftwards. The distance regulation and control around the dryer air outlet, whole dryer device upper and lower deflection at the air outlet angle, dryer air outlet bore regulation and control, dryer air outlet horizontal deflection can accomplish alone through four actions of dryer horizontal deflection, also can the simultaneous working.
Claims (10)
1. A pneumatic dynamic regulation and control device for a fully-mechanized excavation face wind flow field is characterized by comprising a linear track and a controllable wind cylinder device, wherein the controllable wind cylinder device is arranged below the linear track, an air outlet of the controllable wind cylinder device can move back and forth along the linear track, the controllable wind cylinder device comprises a wind cylinder air outlet front and back distance regulation and control mechanism, a wind cylinder air outlet angle upper and lower elevation angle regulation and control mechanism, a wind cylinder air outlet caliber regulation and control mechanism and a wind cylinder air outlet horizontal deflection regulation and control mechanism, the wind cylinder air outlet front and back distance regulation and control mechanism is arranged between an air outlet of the controllable wind cylinder device and the linear track, the wind cylinder air outlet front and back distance regulation and control mechanism is used for driving the air outlet of the controllable wind cylinder device to move back and forth along the linear track, the wind cylinder air outlet angle upper and lower elevation angle regulation and control mechanism is used for regulating and changing the upper, the air duct air outlet caliber regulating and controlling mechanism is used for regulating the caliber of the air outlet of the adjustable air duct device, and the air duct air outlet horizontal deflection regulating and controlling mechanism is used for regulating the size of the horizontal deflection angle of the air outlet of the adjustable air duct device.
2. The fully-mechanized excavating face wind flow field pneumatic dynamic regulation and control device of claim 1, wherein the wind barrel air outlet front-rear distance regulation and control mechanism comprises a driving device pneumatic motor (7), a transmission shaft (19), a transmission gear (23), a rack (9), a first driven wheel (26), a second driven wheel (27), an encoder (24), a first mounting plate (25), a second mounting plate (8) and a connecting rod (20), the first mounting plate (25) and the second mounting plate (8) are both vertically arranged, the first mounting plate (25) and the second mounting plate (8) are symmetrically arranged, the connecting rod (20) is arranged at the lower part between the first mounting plate (25) and the second mounting plate (8), the driving device pneumatic motor (7) is fixedly arranged at the outer side of the second mounting plate (8), the encoder (24) is fixedly arranged at the outer side of the first mounting plate (25), the one end of transmission shaft (19) passes second mounting panel (8) back and the output shaft fixed connection of drive arrangement pneumatic motor (7), the other end of transmission shaft (19) passes first mounting panel (25) back and the input pivot fixed connection of encoder (24), drive gear (23) fixed mounting just all is located between first mounting panel (25) and second mounting panel (8) on transmission shaft (19), and drive gear (23) and rack (9) meshing drive first follow driving wheel (26) and second follow driving wheel (27), and rack (9) are installed on guide rail (10), and first follow driving wheel (26) and second are used for connecting dryer air outlet front and back distance regulation and control mechanism from driving wheel (27).
3. A fully mechanized coal mining face wind flow field pneumatic dynamic control device according to claim 2, characterized in that one end of the connecting rod (20) is fixedly connected with the first mounting plate (25), the other end of the connecting rod (20) is fixedly connected with the second mounting plate (8), and the first driven wheel (26) and the second driven wheel (27) are arranged between the first mounting plate (25) and the second mounting plate (8).
4. The pneumatic dynamic regulation and control device for the wind flow field of the fully mechanized excavation face of claim 2, wherein the front-rear distance regulation and control mechanism for the wind outlet of the wind drum comprises a front limit switch (4) and a rear limit switch (12), the front limit switch (4) is fixedly installed at the front part of the outer side of the guide rail (10), the rear distance regulation and control limit switch (12) is fixedly installed at the rear part of the outer side of the guide rail (10), and the front-rear distance regulation and control mechanism for the wind outlet of the wind drum is powered by a pneumatic motor (7).
5. The pneumatic dynamic regulation and control device for the wind flow field of the fully mechanized excavating face of claim 1, wherein the adjustable wind cylinder device comprises a blade fixing ring (39), a wind cylinder middle frame (17) and a movable connecting device (22), the upper end of the movable connecting device (22) is fixedly connected with a connecting rod (20), the movable connecting device (22) is sleeved on the wind cylinder middle frame (17), the movable connecting device (22) is connected with the wind cylinder middle frame (17) through a bearing (21), and the bearing (21) enables the wind cylinder middle frame (17) to rotate left and right relative to the movable connecting device (22).
6. The fully-mechanized excavating face wind flow field pneumatic dynamic regulation and control device is characterized in that the wind drum air outlet angle up-and-down regulation and control mechanism comprises a wind drum upper-and-down upper pneumatic cylinder (6) and a wind drum upper-and-down lower pneumatic cylinder (18), one end of each of the two cylinders is connected with a bottom cylinder hinge (36) of the blade fixing ring (39), and the other end of each of the two cylinders is connected with a wind drum middle frame (17);
the upper and lower pneumatic cylinders (6) and the upper and lower pneumatic cylinders (18) of the air duct are arranged up and down symmetrically.
7. The fully-mechanized excavating face wind flow field pneumatic dynamic regulation and control device is characterized in that the wind barrel air outlet horizontal deflection regulation and control mechanism comprises a wind barrel horizontal deflection first pneumatic cylinder (15), a wind barrel horizontal deflection second pneumatic cylinder (16) and a rear frame (37), one ends of the two cylinders are fixedly arranged in the middle of the rear frame (37), and the other ends of the two cylinders are hinged with the middle frame (17);
the blade fixing ring (39), the air duct middle frame (17) and the rear frame (37) are of circular ring structures.
8. The fully-mechanized excavating face wind flow field pneumatic dynamic control device is characterized in that the front end of the blade fixing ring (39) is provided with an inner blade (31) and an outer blade (32), and one ends of the inner blade (31) and the outer blade (32) are hinged on the blade fixing ring (39);
the number of the inner blades (31) and the outer blades (32) is multiple, the blades are sequentially overlapped inside and outside to form an air duct air outlet with the caliber adjustable, the air duct air outlet is of a conical structure, and the diameter of the connecting end of each blade and the blade fixing ring (39) is larger than that of the connecting end.
9. The pneumatic dynamic control device for the wind flow field of the fully-mechanized excavating face of claim 8, wherein one end of the inner blade (31) and one end of the outer blade (32) are hinged to the blade fixing ring (39) through a hinge (35), the hinge (35) comprises a first hinge plate, a second hinge plate and a connecting lug (28), the first hinge plate is fixedly connected with the connecting lug (28), the second hinge plate is fixedly connected with the first hinge plate through a pin shaft, the second hinge plate is fixedly arranged in the middle of one end of the inner blade (31) and one end of the outer blade (32), and the inner blade (31) and the outer blade (32) can rotate relative to the connecting lug (28).
10. The pneumatic dynamic regulation and control device for the wind flow field of the fully mechanized excavating face of the claim 5 is characterized in that the regulation and control mechanism for the air outlet aperture of the air duct comprises a linear pushing cylinder mechanism (29), a connecting seat (33), an inner blade pull rod (30) and an outer blade pull rod (34), one end of the linear pushing cylinder (29) is connected with the pull rod connecting ring (2) and can push the pull rod connecting ring (2) to move back and forth, and the other end of the linear pushing cylinder is fixedly installed on a vertical column in the middle of a frame of the blade fixing ring (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010272038.XA CN111365057A (en) | 2020-04-05 | 2020-04-05 | Pneumatic dynamic regulating and controlling device for wind flow field of fully-mechanized excavating face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010272038.XA CN111365057A (en) | 2020-04-05 | 2020-04-05 | Pneumatic dynamic regulating and controlling device for wind flow field of fully-mechanized excavating face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111365057A true CN111365057A (en) | 2020-07-03 |
Family
ID=71205161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010272038.XA Pending CN111365057A (en) | 2020-04-05 | 2020-04-05 | Pneumatic dynamic regulating and controlling device for wind flow field of fully-mechanized excavating face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111365057A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115414751A (en) * | 2022-09-02 | 2022-12-02 | 北京北重汽车改装有限公司 | Multifunctional dust suppression vehicle |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943017A (en) * | 2010-08-23 | 2011-01-12 | 中国矿业大学(北京) | Air distributing device and coal mine comprehensive digging working surface air distributing and dust reducing system |
| CN202914119U (en) * | 2012-10-19 | 2013-05-01 | 山东科技大学 | Automatic control system for air current stability of coal face |
| CN205805597U (en) * | 2016-07-20 | 2016-12-14 | 西安科技大学 | The comprehensive regulation device of fully mechanized workface air duct air outlet |
| CN206035522U (en) * | 2016-09-09 | 2017-03-22 | 西安科技大学 | Manual formula colliery heading ventilation dryer air outlet regulation and control device |
| CN107269308A (en) * | 2017-07-12 | 2017-10-20 | 西安科技大学 | Excavation face in coal mine air duct air outlet blade formula mechanical regulation device |
| CN107401421A (en) * | 2017-09-16 | 2017-11-28 | 西安科技大学 | Colliery tunneling ventilation air duct air outlet regulation device based on PLC controls |
| CN109653784A (en) * | 2018-12-10 | 2019-04-19 | 西安科技大学 | The mechanical regulation device of excavation face in coal mine wind flow field |
| CN110410129A (en) * | 2019-07-24 | 2019-11-05 | 西安科技大学 | A kind of comprehensive pick face wind field fluid pressure type dynamic regulation device |
| CN110905580A (en) * | 2019-11-30 | 2020-03-24 | 西安科技大学 | Fully-mechanized excavation face ventilation optimization method |
-
2020
- 2020-04-05 CN CN202010272038.XA patent/CN111365057A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943017A (en) * | 2010-08-23 | 2011-01-12 | 中国矿业大学(北京) | Air distributing device and coal mine comprehensive digging working surface air distributing and dust reducing system |
| CN202914119U (en) * | 2012-10-19 | 2013-05-01 | 山东科技大学 | Automatic control system for air current stability of coal face |
| CN205805597U (en) * | 2016-07-20 | 2016-12-14 | 西安科技大学 | The comprehensive regulation device of fully mechanized workface air duct air outlet |
| CN206035522U (en) * | 2016-09-09 | 2017-03-22 | 西安科技大学 | Manual formula colliery heading ventilation dryer air outlet regulation and control device |
| CN107269308A (en) * | 2017-07-12 | 2017-10-20 | 西安科技大学 | Excavation face in coal mine air duct air outlet blade formula mechanical regulation device |
| CN107401421A (en) * | 2017-09-16 | 2017-11-28 | 西安科技大学 | Colliery tunneling ventilation air duct air outlet regulation device based on PLC controls |
| CN109653784A (en) * | 2018-12-10 | 2019-04-19 | 西安科技大学 | The mechanical regulation device of excavation face in coal mine wind flow field |
| CN110410129A (en) * | 2019-07-24 | 2019-11-05 | 西安科技大学 | A kind of comprehensive pick face wind field fluid pressure type dynamic regulation device |
| CN110905580A (en) * | 2019-11-30 | 2020-03-24 | 西安科技大学 | Fully-mechanized excavation face ventilation optimization method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115414751A (en) * | 2022-09-02 | 2022-12-02 | 北京北重汽车改装有限公司 | Multifunctional dust suppression vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102418540B (en) | Hydraulic eight-arm anchor rod drill carriage for coal mine | |
| CN206233081U (en) | A kind of environment-friendly type highway groover | |
| CN208512773U (en) | Slag micropowder production line drawing-in device | |
| CN110410129B (en) | Fully-mechanized excavating face wind field hydraulic dynamic regulation and control device | |
| CN112879066B (en) | Vortex-rotation two-domain wind-divided dust control method and device for tunneling surface | |
| CN111365057A (en) | Pneumatic dynamic regulating and controlling device for wind flow field of fully-mechanized excavating face | |
| CN110438925B (en) | Road construction curing means | |
| CN201058974Y (en) | Combined type nozzle | |
| CN206784473U (en) | A kind of Novel water conservancy project Accrete clearing device | |
| CN208328620U (en) | A kind of pavement concrete planisher | |
| CN107217734B (en) | A kind of quick desilting equipment of municipal pipeline | |
| CN112744236A (en) | Sanding device for mining electric locomotive | |
| CN209777459U (en) | Adjustable bulk material guider | |
| CN212642781U (en) | Waste filling support | |
| CN107335506A (en) | A kind of disintegrating machine with cleaning device | |
| CN206346773U (en) | A kind of coal mine roadway dust flushing device | |
| CN209836891U (en) | Front suction nozzle device and sweeping machine with same | |
| CN111962476A (en) | Hydraulic engineering gate with water purification edulcoration function | |
| CN106192838B (en) | A kind of sweeping the floor for adjustable working range and installs the road sweeper of the mechanism at mechanism of car | |
| CN107487574B (en) | Box holding mechanism of efficient garbage compression equipment | |
| CN206680853U (en) | A kind of driveway edge line painting device | |
| CN214836401U (en) | Novel bridge underground excavation construction vehicle | |
| CN214939126U (en) | Crack filling device for highway maintenance | |
| CN220015241U (en) | Spraying dust fall mechanism for coal mining tunneling | |
| CN220057777U (en) | Snow throwing tube folding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200703 |
|
| RJ01 | Rejection of invention patent application after publication |