CN116838409B - Dust removing equipment for coal mine tunnel - Google Patents
Dust removing equipment for coal mine tunnel Download PDFInfo
- Publication number
- CN116838409B CN116838409B CN202310969638.5A CN202310969638A CN116838409B CN 116838409 B CN116838409 B CN 116838409B CN 202310969638 A CN202310969638 A CN 202310969638A CN 116838409 B CN116838409 B CN 116838409B
- Authority
- CN
- China
- Prior art keywords
- shell
- filter screen
- collector
- limiting
- coal mine
- 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.)
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- 239000003245 coal Substances 0.000 title claims abstract description 34
- 239000000428 dust Substances 0.000 title claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 238000004140 cleaning Methods 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 3
- 239000010883 coal ash Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 238000009423 ventilation Methods 0.000 description 8
- 239000002817 coal dust Substances 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 208000019693 Lung disease Diseases 0.000 description 1
- 208000018569 Respiratory Tract disease Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
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
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/20—Drawing-off or depositing dust
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/88—Replacing filter elements
-
- 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
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to dust removal equipment for a coal mine tunnel, which comprises a shell, an air inlet and an air outlet which are arranged on the shell, a filter screen which is assembled in the shell and positioned between the air inlet and the air outlet, a transmission assembly arranged in the shell, a cleaning piece arranged on the transmission assembly and a collector which is detachably connected to the shell. The dust removing equipment for the coal mine tunnel can be matched with the air extracting equipment to filter dust in the coal mine tunnel so as to achieve the dust removing purpose, provide cleaner working environment for workers, collect the filtered coal ash so as to facilitate subsequent recycling, and automatically clean the filter screen when the collector is disassembled so as to effectively prolong the filtering capacity of the filter screen, so that the filter screen can keep better filtering effect for a long time, prolong the service life of the filter screen to a certain extent and reduce the use cost of the dust removing device.
Description
Technical Field
The invention belongs to the technical field of dust removal equipment, and particularly relates to dust removal equipment for a coal mine tunnel.
Background
In the coal mine production process, tunneling of tunnels is carried out, more coal dust is often generated during tunneling, the harm is extremely large, dust explosion is easy to cause, and meanwhile, the respiratory tract and lung diseases of workers are easy to cause; therefore, a corresponding ventilation system is arranged near the tunnel under the normal condition to pump and exhaust the coal dust air in the tunnel to the outside of the tunnel so as to achieve the dust removal purpose. However, the ground environment is easy to be polluted by the fact that the pulverized coal air is discharged outside the pit through the ventilation system in a pumping mode, pulverized coal waste is caused by direct discharge, in addition, the pulverized coal is easy to adhere to the inner wall of a pipeline and difficult to clean when entering the ventilation system, the pipeline is easy to be blocked when serious, and the ventilation effect of the ventilation system is affected.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the technical problems that: provides dust removal equipment for coal mine tunnels.
In order to solve the technical problems, the invention adopts a technical scheme that:
The dust removing equipment for the coal mine tunnel comprises a shell, an air inlet and an air outlet which are formed in the shell, a filter screen which is assembled in the shell and positioned between the air inlet and the air outlet, a transmission assembly which is formed in the shell, a cleaning piece which is arranged on the transmission assembly and a collector which is detachably connected to the shell, wherein the air inlet and the air outlet are formed in the shell;
when the collector is assembled and disassembled with the shell, the transmission assembly can drive the cleaning piece to clean the inner wall of the filter screen.
Further, the shell is of a cylindrical structure, the upper end of the shell is provided with an opening to form the air inlet, the air outlet is an air outlet pipe arranged on the side face of the shell, the filter screen is of a cylindrical structure, and the filter screen is assembled in the shell, attached to the inner wall of the shell and used for shielding the air outlet.
Further, the transmission assembly comprises a bracket arranged in the shell, a first rotating shaft longitudinally penetrating the bracket and rotationally connected with the bracket, a sliding piece longitudinally connected in the shell in a sliding manner and not capable of axially rotating relative to the shell and in threaded connection with the first rotating shaft, an elastic piece arranged between the bracket and the sliding piece and used for pushing the sliding piece to the side far away from the bracket, and a limiting piece arranged at the lower end of the first rotating shaft and used for limiting the sliding piece to be separated from the first rotating shaft, and the cleaning piece is arranged on the first rotating shaft;
When the collector is not mounted with the shell, the sliding piece is pushed downwards by the elastic piece to be abutted with the limiting piece;
when the collector is mounted with the housing, the slide will be lifted up by the collector a distance.
Further, the filter screen is coaxially and rotatably connected with the shell, and the transmission assembly further comprises a linkage assembly connected between the filter screen and the first rotating shaft;
When the collector is installed with the shell, the linkage assembly can drive the filter screen to rotate, the rotation angle is smaller than 360 degrees, and when the collector is detached with the shell, the linkage assembly cannot drive the filter screen to rotate.
Further, the linkage assembly comprises a one-way bearing assembled on the outer side of the first rotating shaft, a first gear assembled on the outer side of the one-way bearing, a toothed ring arranged on the filter screen and coaxially arranged with the filter screen, and a second gear rotationally connected to the support and meshed with the first gear and the toothed ring.
Further, the limiting groove penetrating through the lower end of the shell is formed in the inner wall of the shell, and a first limiting part which is slidably assembled in the limiting groove is arranged on the side face of the sliding part.
Further, the collector is of a cylindrical structure matched with the inner diameter of the shell, a second limiting part matched with the limiting groove is arranged on the side face of the collector, a ring groove communicated with the limiting groove is formed in the inner side of the shell, the first limiting part cannot enter the ring groove, and the second limiting part can enter the ring groove.
Furthermore, a clamping groove which is communicated with the lower end of the annular groove and does not penetrate through the lower end of the shell is formed in the inner side of the shell, the clamping groove is not intersected with the limiting groove, and the second limiting part can enter the limiting groove.
Furthermore, the collector is made of transparent materials.
Further, the inside threaded connection of casing has the limit frame that is used for limiting the filter screen upward movement, the limit frame middle part is offered and is supplied first pivot male jack.
The dust removing equipment for the coal mine tunnel can be matched with the air extracting equipment to filter dust in the coal mine tunnel so as to achieve the dust removing purpose, provide cleaner working environment for workers, collect the filtered coal ash so as to facilitate subsequent recycling, and automatically clean the filter screen when the collector is disassembled so as to effectively prolong the filtering capacity of the filter screen, so that the filter screen can keep better filtering effect for a long time, prolong the service life of the filter screen to a certain extent and reduce the use cost of the dust removing device.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of the structure shown at A in FIG. 2;
FIG. 4 is an enlarged schematic view of the structure at B in FIG. 3;
FIG. 5 is an enlarged schematic view of the structure at C in FIG. 3;
FIG. 6 is an enlarged schematic view of the structure at D in FIG. 3;
FIG. 7 is an enlarged schematic view of the structure at E in FIG. 3;
FIG. 8 is an enlarged schematic view of the structure at F in FIG. 2;
FIG. 9 is an exploded view of one embodiment of the present invention;
FIG. 10 is an enlarged schematic view of the structure at G in FIG. 9;
FIG. 11 is a top view of a linkage assembly and a filter screen according to an embodiment of the present invention;
Fig. 12 is a schematic structural view of a sliding member according to an embodiment of the invention.
The meaning of the reference numerals in the drawings are:
the device comprises a shell 1, an air inlet 11, an air outlet 12, an air outlet pipe 121, a limit groove 13, an annular groove 14, a clamping groove 15, a limit frame 16, an insertion hole 161, a filter screen 2, a transmission component 3, a bracket 31, a first bearing hole 311, a first bearing 312, a second bearing hole 313, a second bearing 314, a second rotating shaft 315, a first rotating shaft 32, a sliding piece 33, a first limit part 331, a sliding barrel 332, an internal thread 3321, an external thread 3322, a connecting rod 333, a circular ring 334, an elastic piece 34, a limit piece 35, a linkage component 36, a one-way bearing 361, a first gear 362, a toothed ring 363, a second gear 364, a cleaning piece 4, a collector 5 and a second limit part 51.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1-12, the dust removing device for a coal mine tunnel shown in this embodiment includes a cylindrical housing 1, an air inlet 11 is formed at an opening at an upper end of the housing 1, an air outlet pipe 121 is provided on a side surface of the housing 1 to serve as an air outlet 12, a filter screen 2 located between the air inlet 11 and the air outlet, a transmission assembly 3 located in the housing 1, a cleaning member 4 located on the transmission assembly 3, and a collector 5 detachably connected to the housing 1 are further assembled in the housing 1, the filter screen 2 is of a cylindrical structure, and the filter screen 2 is assembled in the housing 1 to be attached to an inner wall of the housing 1 and shields the air outlet 12.
When the dust removing device is used, the dust removing device is matched with the air extracting device, and an air outlet of the air extracting device is communicated with the air inlet 11 on the shell 1 before use. When the air extractor is used, the air extractor is started to suck the air with coal dust in the coal mine tunnel into the shell 1, the coal dust air entering the shell 1 enters the filter screen 2, the air filtered by the filter screen 2 is discharged into the tunnel through the air outlet pipe 121, and the air after dust filtration can be discharged to a designated position by connecting an air guide pipe at the air outlet pipe 121. The pulverized coal filtered by the filter screen 2 is adhered to the inner wall of the filter screen 2, and after a certain amount of pulverized coal is accumulated, the pulverized coal falls into the collector 5 under the action of gravity and is collected by the collector 5, and the collector 5 is detached to clean the pulverized coal. Dust removal equipment can avoid pulverized coal air to discharge outside the pit to pollute the ground environment in the coal mine tunnel, filtered pulverized coal is collected in the collector 5 to be convenient for subsequent recycling, pulverized coal waste is avoided, and the ventilation effect of the ventilation system cannot be influenced because pulverized coal air does not pass through the ventilation system.
In order to enable the cleaning member 4 to clean the inner wall of the filter screen 2 by the driving assembly 3 when the collector 5 is assembled and disassembled with the housing 1, the driving assembly 3 and the collector 5 are further described below.
Specifically, the transmission assembly 3 includes a bracket 31 disposed in the housing 1, a first rotating shaft 32 longitudinally penetrating the bracket 31 and rotationally connected to the bracket 31, a sliding member 33 longitudinally slidably connected in the housing 1 and axially unable to rotate relative to the housing 1 and threadably connected to the first rotating shaft 32, an elastic member 34 disposed between the bracket 31 and the sliding member 33 for pushing the sliding member 33 to a side far away from the bracket 31, and a limiting member 35 disposed at a lower end of the first rotating shaft 32 for limiting the sliding member 33 from separating from the first rotating shaft 32. In this embodiment, the cleaning members 4 are two brushes, and the two brushes are symmetrically and fixedly connected to the side surface of the first rotating shaft 32, and the bristles of the brushes are in contact with the inner wall of the filter screen 2.
In this embodiment, the bracket 31 is specifically cross-shaped and is fixed on the inner wall of the housing 1, the bracket 31 is provided with a first bearing hole 311, a first bearing 312 is assembled in the first bearing hole 311, and the first shaft 32 is assembled in the inner ring of the first bearing 312, so that the first shaft 32 and the bracket 31 are rotatably connected, and it should be understood that the manner of rotation connection between the first shaft 32 and the bracket 31 is not limited to the above embodiment.
The following describes the structure of the sliding member 33 specifically, the sliding member 33 includes an inner sliding cylinder 332, four connecting rods 333 fixedly connected to the outer side of the sliding cylinder 332, and a ring 334 fixedly connected to the ends of the four connecting rods 333, the outer diameter of the ring 334 is matched with the inner diameter of the housing 1, the ring 334 is assembled in the housing 1 to enable the sliding member 33 to be longitudinally slidingly connected with the housing 1, an internal thread 3321 is provided on the inner side of the sliding cylinder 332, an external thread 3322 matched with the internal thread 3321 is provided on the outer side of the first rotating shaft 32, the sliding cylinder 332 is assembled on the outer side of the first rotating shaft 32, and the internal thread 3321 is screwed with the external thread 3322 to enable the sliding member 33 to be in threaded connection with the first rotating shaft 32.
In order to prevent the sliding member 33 from rotating axially relative to the housing 1, in this embodiment, a limiting groove 13 penetrating through the lower end of the housing 1 is formed in the inner wall of the housing 1, a first limiting portion 331 slidably mounted in the limiting groove 13 is formed on the side surface of the sliding member 33, specifically, the first limiting portion 331 is disposed on the outer side of the ring 334, and the sliding member 33 can be limited to rotate relative to the housing 1 by matching the first limiting portion 331 with the limiting groove 13.
In this embodiment, the elastic member 34 is a coil spring, and the coil spring is sleeved on the outer side of the first rotating shaft 32 to improve stability. The lower end of the first rotating shaft 32 is provided with a bolt groove, and the limiting piece 35 is a bolt which is in threaded connection with the bolt groove.
In this embodiment, the collector 5 is a cylindrical structure matched with the inner diameter of the housing 1, and is made of a transparent material, so that a user can observe the collection amount of pulverized coal conveniently, a second limiting portion 51 matched with the limiting groove 13 is arranged on the side surface of the collector 5, correspondingly, a ring groove 14 communicated with the limiting groove 13 is formed in the inner side of the housing 1, the height of the ring groove 14 is smaller than that of the first limiting portion 331, and is larger than that of the second limiting portion 51, therefore, the first limiting portion 331 cannot enter the ring groove 14, and the second limiting portion 51 can enter the ring groove 14.
When the collector 5 is not mounted with the housing 1, the slider 33 will be pushed down by the elastic member 34 into abutment with the stopper 35.
When the collector 5 is mounted with the housing 1, the collector 5 is inserted from the lower end of the housing 1, the second limiting part 51 is inserted into the limiting groove 13, during the process of inserting the collector 5, the upper end of the collector is abutted against the sliding part 33 and pushes the sliding part 33 upwards against the elastic force of the elastic part 34, after the second limiting part 51 moves upwards to be aligned with the annular groove 14, the collector 5 is axially rotated, the second limiting part 51 is rotated into the annular groove 14, the second limiting part 51 is matched with the annular groove 14 to limit the downward movement of the collector 5, and thus the collector 5 is mounted on the housing 1.
In the above installation process, the sliding member 33 will be lifted up by the collector 5 for a certain distance, and since the sliding member 33 cannot rotate relative to the housing 1 and is in threaded connection with the first rotating shaft 32, the first rotating shaft 32 is in rotational connection with the housing 1, so that the sliding member 33 forces the first rotating shaft 32 to rotate during the upward movement, the first rotating shaft 32 rotates to drive the cleaning member 4 to rotate, so as to clean the inner wall of the filter screen 2, and the soot adhered to the inner wall of the filter screen 2 is caused to fall.
When the collector 5 is required to be disassembled, the collector 5 is axially rotated, the second limiting part 51 is rotated to be aligned with the limiting groove 13, and the limitation of the downward movement of the second limiting part 51 is released, so that the collector 5 can be taken out downwards, and the disassembly is completed. It should be noted that, during the disassembly process, the elastic member 34 will rebound to push the sliding member 33 downward, so that the sliding member 33 slides downward, and accordingly, the cleaning member 4 can be driven to rotate during the sliding of the sliding member 33 downward, so that the inner wall of the filter screen 2 can be cleaned during the disassembly process of the collector 5. The filter screen 2 can be automatically cleaned when the collector 5 is disassembled and assembled, so that the filtering capacity of the filter screen 2 can be effectively guaranteed, the filter screen 2 can keep a good filtering effect for a long time, the service life of the filter screen 2 is prolonged to a certain extent, and the use cost of the dust removing device can be reduced.
In order to improve the installation strength between the collector 5 and the housing 1, the embodiment further improves that, specifically, a clamping groove 15 which is communicated with the lower end of the ring groove 14 and does not penetrate through the lower end of the housing 1 is formed in the inner side of the housing 1, the clamping groove 15 does not intersect with the limiting groove 13, and the second limiting portion 51 can enter the limiting groove 13. In the process of installing the collector 5, specifically, in the process of rotating the second limiting part 51 into the annular groove 14, the second limiting part 51 can be rotated to be aligned with the clamping groove 15, after the second limiting part 51 is aligned with the clamping groove 15, the collector 5 is loosened, the elastic piece 34 rebounds to push the sliding piece 33 and the collector 5 to move downwards, so that the second limiting part 51 is clamped into the clamping groove 15, the clamping groove 15 is matched with the second limiting part 51 to limit the axis of the collector 5 to rotate and move downwards, and the collector 5 can be firmly installed on the shell 1 under the action of the thrust exerted by the elastic piece 34 matched with the sliding piece 33.
In this embodiment, since the filter screen 2 is in a cylindrical structure and the air outlet 12 is located at the side of the casing 1, only a part of the area of the filter screen 2 is aligned with the air outlet 12, so that in the filtering operation process, the part of the filter screen 2 aligned with the air outlet 12 plays a main role in filtering dust, so that the part is unnecessary to adhere to dust, the loss speed of the part is higher than that of other parts, and in order to delay the loss speed of the whole filter screen 2, the filter screen 2 can be rotated by a certain angle after the filter screen 2 is used for a certain period of time, so that the loss speed of the whole filter screen 2 can be delayed under the condition of ensuring a certain filtering capability, and the maintenance frequency of the filter screen 2 can be prolonged to a certain extent.
In order to facilitate the switching of the filtering part of the filtering net 2, the following improvements are further made in this embodiment, specifically, the filtering net 2 is coaxially and rotatably connected with the housing 1, and the transmission assembly 3 further includes a linkage assembly 36 connected between the filtering net 2 and the first rotating shaft 32. The linkage assembly 36 includes a one-way bearing 361 mounted on the outer side of the first rotating shaft 32, a first gear 362 mounted on the outer side of the one-way bearing 361, a toothed ring 363 provided on the filter screen 2 and coaxially arranged with the filter screen 2, and a second gear 364 rotatably connected to the bracket 31 and engaged with both the first gear 362 and the toothed ring 363.
In this embodiment, the filter screen 2 is sleeved inside the casing 1 and abuts against the upper end of the bracket 31, the upper side of the filter screen 2 is provided with a limiting frame 16 in threaded connection with the inside of the casing 1, and the filter screen 2 is limited up and down by the limiting frame 16 and the bracket 31, so that the filter screen 2 is rotationally connected with the casing 1, and it should be understood that the rotational connection mode between the filter screen 2 and the casing 1 is not limited to the above embodiment. It should be noted that, an insertion hole 161 is formed in the middle of the limiting frame 16, into which the first rotating shaft 32 is inserted, and after the first rotating shaft 32 is assembled on the bracket 31, the upper end of the first rotating shaft 32 can be inserted into the insertion hole 161 to stabilize the upper portion of the first rotating shaft 32, so that the first rotating shaft 32 will not deflect during rotation, and the cleaning member 4 can rotate stably.
In order to achieve the rotational connection between the second gear 364 and the support 31, in this embodiment, the support 31 is provided with a second bearing hole 313, a second bearing 314 is assembled in the second bearing hole 313, a second rotating shaft 315 is assembled in the inner side of the second bearing 314, and the second rotating shaft 315 is fixedly connected with the second gear 364, so that the second gear 364 is in rotational connection with the support 31, and it should be understood that the rotational connection manner between the second gear 364 and the support 31 is not limited to the above embodiment.
It should be noted that, when the inner ring of the unidirectional bearing 361 rotates in the forward direction, the inner ring will lock with the outer ring, so that the inner ring will drive the outer ring to rotate in the forward direction, and when the inner ring rotates in the reverse direction, the inner ring does not lock with the outer ring, and the inner ring can rotate in the reverse direction relative to the outer ring. In this embodiment, the inner ring of the unidirectional bearing 361 is fixed to the first shaft 32, the outer ring thereof is fixed to the first gear 362, and when the sliding member 33 moves upward, the first shaft 32 will rotate the outer ring clockwise (forward rotation) through the inner ring of the unidirectional bearing 361, that is, the first gear 362 will rotate clockwise, and correspondingly, when the sliding member 33 moves downward, the first shaft 32 will not rotate the outer ring counterclockwise (reverse rotation) through the inner ring of the unidirectional bearing 361, that is, the first gear 362 will not rotate counterclockwise.
In this embodiment, the transmission ratio of the first gear 362 to the toothed ring 363 is greater than 1, so that when the first gear 362 rotates forward 360 degrees, the toothed ring 363 is driven to rotate by a certain angle, the rotation angle is smaller than 360 degrees, specifically, the number of teeth of the first gear 362 is equal to 100 teeth of the second gear 364, and the number of teeth of the toothed ring 363 is greater than the number of teeth of the first gear 362 and is equal to 400 teeth.
The principle of switching the filtering part is specifically described below through the disassembly and assembly process of the collector 5, when the collector 5 is assembled with the housing 1, the collector 5 pushes the sliding member 33 upward for a certain distance, after the assembly of the collector 5 is completed, the sliding member 33 finally slides upward for a certain distance to force the first rotating shaft 32 to drive the first gear 362 to rotate forward for 1 turn, the toothed ring 363 is driven to rotate reversely for 1/4 turn by the second gear 364 meshed with the first gear 362 and the toothed ring 363 simultaneously, and correspondingly, the filter screen 2 rotates for 1/4 turn, so that the switching of the filtering part is completed. It should be noted that, in the process of detaching the collector 5, the sliding member 33 slides downward to reset under the action of the elastic force of the elastic member 34, in this process, the sliding member 33 forces the first rotating shaft 32 to rotate reversely, and the first rotating shaft 32 does not drive the first gear 362 to rotate reversely, so that the filter screen 2 does not rotate, and in this way, the collector 5 automatically drives the filter screen 2 to rotate a certain angle in one direction in each detaching process, so that each part of the filter screen 2 participates in filtering in turn, so as to effectively delay the loss speed of the whole filter screen 2, and reduce the maintenance frequency of the filter screen 2.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims of this invention, which are within the skill of those skilled in the art, can be made without departing from the spirit and scope of the invention disclosed herein.
Claims (8)
1. The utility model provides a coal mine tunnel dust collecting equipment which characterized in that: the device comprises a shell, an air inlet and an air outlet which are arranged on the shell, a filter screen which is assembled in the shell and positioned between the air inlet and the air outlet, a transmission assembly arranged in the shell, a cleaning piece arranged on the transmission assembly and a collector which is detachably connected on the shell;
When the collector is dismounted from the shell, the cleaning piece can be driven by the transmission assembly to clean the inner wall of the filter screen;
The shell is of a cylindrical structure, the upper end of the shell is provided with an opening to form the air inlet, the air outlet is an air outlet pipe arranged on the side surface of the shell, the filter screen is of a cylindrical structure, and the filter screen is assembled in the shell, is attached to the inner wall of the shell and shields the air outlet;
The transmission assembly comprises a bracket arranged in the shell, a first rotating shaft longitudinally penetrating the bracket and rotationally connected with the bracket, a sliding piece longitudinally connected in the shell in a sliding way, and not axially rotated relative to the shell and in threaded connection with the first rotating shaft, an elastic piece arranged between the bracket and the sliding piece and used for pushing the sliding piece to the side far away from the bracket, and a limiting piece arranged at the lower end of the first rotating shaft and used for limiting the sliding piece to be separated from the first rotating shaft, and the cleaning piece is arranged on the first rotating shaft;
When the collector is not mounted with the shell, the sliding piece is pushed downwards by the elastic piece to be abutted with the limiting piece;
when the collector is mounted with the housing, the slide will be lifted up by the collector a distance.
2. A coal mine tunnel dust removal apparatus as claimed in claim 1, wherein: the filter screen is coaxially and rotatably connected with the shell, and the transmission assembly further comprises a linkage assembly connected between the filter screen and the first rotating shaft;
When the collector is installed with the shell, the linkage assembly can drive the filter screen to rotate, the rotation angle is smaller than 360 degrees, and when the collector is detached with the shell, the linkage assembly cannot drive the filter screen to rotate.
3. A coal mine tunnel dust removal apparatus as claimed in claim 2, wherein: the linkage assembly comprises a one-way bearing assembled on the outer side of the first rotating shaft, a first gear assembled on the outer side of the one-way bearing, a toothed ring arranged on the filter screen and coaxially arranged with the filter screen, and a second gear rotationally connected to the bracket and meshed with the first gear and the toothed ring.
4. A coal mine tunnel dust removal apparatus as claimed in claim 3, wherein: the shell inner wall is provided with a limiting groove penetrating through the lower end of the shell, and the side face of the sliding piece is provided with a first limiting part which is assembled in the limiting groove in a sliding mode.
5. The dust removing apparatus for coal mine tunnels as set forth in claim 4, wherein: the collector is of a cylindrical structure matched with the inner diameter of the shell, a second limiting part matched with the limiting groove is arranged on the side face of the collector, a ring groove communicated with the limiting groove is formed in the inner side of the shell, the first limiting part cannot enter the ring groove, and the second limiting part can enter the ring groove.
6. The coal mine tunnel dust removing apparatus according to claim 5, wherein: the inner side of the shell is provided with a clamping groove which is communicated with the lower end of the annular groove and does not penetrate through the lower end of the shell, the clamping groove is not intersected with the limiting groove, and the second limiting part can enter the limiting groove.
7. A coal mine tunnel dust removal apparatus as claimed in any one of claims 1 to 6, wherein: the collector is made of transparent materials.
8. A coal mine tunnel dust removal apparatus as claimed in any one of claims 1 to 6, wherein: the inside threaded connection of casing has the limit frame that is used for limiting the filter screen upward movement, the limit frame middle part is offered supplies first pivot male jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310969638.5A CN116838409B (en) | 2023-08-01 | 2023-08-01 | Dust removing equipment for coal mine tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310969638.5A CN116838409B (en) | 2023-08-01 | 2023-08-01 | Dust removing equipment for coal mine tunnel |
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| CN116838409A CN116838409A (en) | 2023-10-03 |
| CN116838409B true CN116838409B (en) | 2024-05-07 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113856341A (en) * | 2021-09-28 | 2021-12-31 | 南宁利亚德环保科技有限公司 | Receive material formula dust remover |
| CN215804661U (en) * | 2021-08-25 | 2022-02-11 | 王贝 | Emergency air-reversing device for coal mine rescue |
| CN218407507U (en) * | 2022-10-27 | 2023-01-31 | 安徽恒源煤电股份有限公司 | Ventilation unit for coal mine operation |
| CN115680748A (en) * | 2022-10-09 | 2023-02-03 | 陈宇满 | Colliery gallery dust removal purification device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215804661U (en) * | 2021-08-25 | 2022-02-11 | 王贝 | Emergency air-reversing device for coal mine rescue |
| CN113856341A (en) * | 2021-09-28 | 2021-12-31 | 南宁利亚德环保科技有限公司 | Receive material formula dust remover |
| CN115680748A (en) * | 2022-10-09 | 2023-02-03 | 陈宇满 | Colliery gallery dust removal purification device |
| CN218407507U (en) * | 2022-10-27 | 2023-01-31 | 安徽恒源煤电股份有限公司 | Ventilation unit for coal mine operation |
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| CN116838409A (en) | 2023-10-03 |
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