CN116220765A

CN116220765A - Coal mine tunnel roof support truss device

Info

Publication number: CN116220765A
Application number: CN202310429917.2A
Authority: CN
Inventors: 邹光华; 吕坤; 冯吉成; 范彦阳; 贾明琦; 闻志雄; 吉志海; 石建军; 师皓宇; 许海涛
Original assignee: North China Institute of Science and Technology; CCTEG China Coal Research Institute
Current assignee: North China Institute of Science and Technology; CCTEG China Coal Research Institute
Priority date: 2023-04-20
Filing date: 2023-04-20
Publication date: 2023-06-06

Abstract

The invention relates to the technical field of building construction auxiliary equipment, in particular to a coal mine tunnel roof supporting truss device. The invention aims to provide a coal mine tunnel roof supporting truss device capable of preventing coal blocks from falling into gaps among trusses. The utility model provides a colliery tunnel roof support truss device, includes truss, guide rail, check keep off mechanism and supporting mechanism, and the inside left and right sides of truss all is connected with the guide rail, and the inside left and right sides of truss all is equipped with check and keeps off the mechanism, is equipped with supporting mechanism on the check keeps off the mechanism. According to the invention, the motor drives the threaded rod to rotate, the threaded rod drives the baffle to move forwards until the baffle blocks the gap between the trusses, coal blocks are prevented from falling down to injure passers-by, and the supporting plate supports the roadway roof due to the reset action of the first spring, so that loose coal blocks on the roof are prevented from directly falling down to damage the baffle, and the effect of protecting the baffle is achieved.

Description

Coal mine tunnel roof support truss device

Technical Field

The invention relates to the technical field of building construction auxiliary equipment, in particular to a coal mine tunnel roof supporting truss device.

Background

The supporting truss is a steel frame for supporting protection, truss rod members mainly bear axial tension or compression, so that the strength of materials can be fully utilized, and the supporting truss is widely applied to underground mines, tunnels and other places, but the existing supporting truss generally has only the protection capability for major accidents such as large collapse and the like, does not have the protection function for falling rocks, water leakage and the like, and is easy to injure passers-by once coal blocks fall.

Patent application CN209942225U, the publication day is 2020.01.14, an adjustable temporary support truss for assembled floor is disclosed, including H shaped steel, the floor, go up chord skeleton, first crossbeam, second crossbeam and lower chord skeleton etc. go up chord skeleton's both ends and all install highly adjustable fixed unit, go up chord skeleton and lower chord skeleton's length is adjustable, simple structure has, simple to operate, occupation space is little, support effectual, easy dismounting's advantage such as easy dismounting, however this support truss does not possess the function that blocks falling stone and leak etc., can't further ensure passerby's safety.

Therefore, it is necessary to develop a coal mine tunnel roof supporting truss device, which can prevent coal blocks, water leakage and the like from falling into gaps between trusses through a grid blocking mechanism, and can support loose coal blocks of a tunnel roof through a supporting mechanism so as to prevent the coal blocks from directly falling.

Disclosure of Invention

In order to overcome the defect that the existing protective truss cannot prevent coal blocks from falling into gaps among trusses to injure passers-by, the invention aims to solve the technical problems that: provided is a coal mine tunnel roof supporting truss device capable of preventing coal blocks from falling into gaps between trusses.

The technical implementation scheme of the invention is as follows: the utility model provides a colliery tunnel roof support truss device, includes truss, guide rail, check keep off mechanism and supporting mechanism, and the inside left and right sides of truss all is connected with the guide rail, and the inside left and right sides of truss all is equipped with check and keeps off the mechanism for stop the coal cinder that falls off, be equipped with supporting mechanism on the check and keep off the mechanism, be used for supporting the not hard up coal cinder of roof.

More preferably, the grid baffle mechanism comprises a motor, a threaded rod and a baffle, the baffle is connected between the guide rails in a sliding mode, openings are formed in the left side and the right side of the baffle, the motor is installed on the right side of the truss, the threaded rod is connected to an output shaft of the motor, and the threaded rod is connected with the rear portion of the right side of the baffle in a sliding mode.

More preferably, the supporting mechanism comprises a telescopic rod, a first spring, a supporting plate, a first guide plate and a second guide plate, wherein the telescopic rod is connected to the upper side of the baffle in a sliding mode, the supporting plate is connected to the telescopic rod in a sliding mode, the first spring is sleeved outside the telescopic rod, two ends of the first spring are respectively connected to the baffle and the supporting plate, the first guide plate is connected to the upper side of the rear portion of the baffle in a sliding mode, the other end of the first guide plate is connected to the supporting plate in a rotating mode, and the second guide plate is connected between the adjacent supporting plates in a sliding mode.

More preferably still including being used for sweeping the barrier mechanism of sweeping of guide rail, sweep barrier mechanism including rack, mounting bracket, clean dish and gear train, all be connected with the rack on the guide rail, the rack all is located the baffle outside, and the baffle rear side all is connected with the mounting bracket, all rotates on the mounting bracket to be connected with the gear train, and the gear of gear train downside all meshes with the rack, all rotates on the mounting bracket to be connected with clean the dish, cleans the dish and all is located the gear train inboard to with the gear connection of gear train upside.

More preferably, still including the clearance mechanism that is used for clearing up baffle upper surface, clearance mechanism is including scraper blade, stay cord, slider, limiting plate and elastic cord, baffle surface left and right sides all is connected with the limiting plate, all slidingtype in the limiting plate is connected with the slider, the surface upper side slip of baffle is connected with two scrapers, all be connected with the stay cord between left scraper blade and the slider on left side and between right scraper blade and the slider on right side, be connected with elastic cord between the scraper blade, the guide way has all been opened to the inside left and right sides of truss, the slider slides along the guide way.

More preferably, the device further comprises a pushing and sweeping mechanism for sweeping the coal blocks below the supporting plate, the pushing and sweeping mechanism comprises a fixing frame, a cleaning brush and a second spring, the fixing frame is connected to the inner side of the upper portion of the truss, the cleaning brush is connected to the left side and the right side of the front portion of the fixing frame in a rotating mode, the second spring is sleeved on the outer side of the cleaning brush, and two ends of the second spring are respectively connected to the fixing frame and the cleaning brush.

More preferably, still including the filtering mechanism who is used for filtering out the coal cinder that drops, filtering mechanism is including deflector, reposition of redundant personnel box and filter screen, and baffle surface left and right sides all is connected with the deflector, and baffle surface left and right sides all is connected with the reposition of redundant personnel box, and the reposition of redundant personnel box all is located the opening outside of deflector below and baffle, all is connected with the filter screen in the reposition of redundant personnel box.

More preferably, the screen is arranged to slope downwardly within the manifold.

The beneficial effects are as follows:

1. according to the invention, the motor drives the threaded rod to rotate, and the threaded rod drives the baffle to move forwards until the baffle blocks the gap between the trusses, so that coal blocks are prevented from falling down to injure passers-by, and the effect of guaranteeing the safety of people is achieved.

2. According to the invention, when the supporting plate is not pressed by the truss any more, the supporting plate moves upwards under the reset action of the first spring to support the roadway top plate, so that loose coal on the top plate is prevented from directly falling down to damage the baffle plate, the effect of protecting the baffle plate is achieved, and the service life of the baffle plate is prolonged.

3. According to the invention, the gear set is driven to rotate through the rack, so that the cleaning disc rotates to clean the crushed coal blocks on the guide rail, and the crushed coal blocks on the guide rail are prevented from obstructing the baffle to slide on the guide rail, so that the service efficiency of the device is improved.

4. When the sliding block moves downwards, the pull rope is driven to move downwards, the pull rope pulls the scraping plate downwards, the scraping plate scrapes off the coal blocks on the upper surface of the baffle plate, the effect of preventing the coal blocks on the upper surface of the baffle plate from clamping the supporting plate is achieved, and the telescopic rod is convenient to stretch well.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of a first part of a grid mechanism according to the present invention.

Fig. 3 is a schematic perspective view of a second part of the grid mechanism of the present invention.

Fig. 4 is a schematic perspective view of a first part of the supporting mechanism of the present invention.

Fig. 5 is a schematic perspective view of a second part of the supporting mechanism of the present invention.

Fig. 6 is a schematic perspective view of a first part of the barrier sweeping mechanism according to the present invention.

Fig. 7 is a schematic perspective view of a second part of the barrier sweeping mechanism according to the present invention.

Fig. 8 is a schematic perspective view of a first part of the cleaning mechanism according to the present invention.

Fig. 9 is a schematic perspective view of a second part of the cleaning mechanism of the present invention.

Fig. 10 is a schematic perspective view of a first part of the push broom according to the present invention.

Fig. 11 is a schematic perspective view of a second part of the push broom according to the present invention.

Fig. 12 is a schematic perspective view of a portion of a filter mechanism according to the present invention.

The reference symbols in the drawings: 1-truss, 2-guide rail, 3-check mechanism, 31-motor, 32-threaded rod, 33-baffle, 4-supporting mechanism, 41-telescopic link, 42-first spring, 43-supporting plate, 44-first guide plate, 45-second guide plate, 5-obstacle sweeping mechanism, 51-rack, 52-mounting frame, 53-sweeping disc, 54-gear set, 6-cleaning mechanism, 61-scraper, 62-stay cord, 63-slider, 64-limiting plate, 65-guide slot, 66-elastic rope, 7-push-sweep mechanism, 71-fixing frame, 72-cleaning brush, 73-second spring, 8-filtering mechanism, 81-guide plate, 82-shunt box and 83-filter screen.

Detailed Description

The following describes in detail the preferred embodiments of the present invention with reference to the accompanying drawings.

Example 1

The utility model provides a colliery tunnel roof support truss device, as shown in fig. 1-5, including truss 1, guide rail 2, check fender mechanism 3 and supporting mechanism 4, two guide rails 2 are connected respectively in the inside left and right sides of truss 1, the inside left and right sides of truss 1 all is equipped with the check fender mechanism 3 that is used for stopping the coal cinder that falls down, be equipped with the supporting mechanism 4 that is used for supporting the not hard up coal cinder of roof on the check fender mechanism 3, check fender mechanism 3 is including motor 31, threaded rod 32 and baffle 33, be connected with baffle 33 between two guide rails 2 in the slip type, be used for stopping the coal cinder, motor 31 installs on the inside right side of truss 1, the output shaft of motor 31 is gone up through the shaft coupling welding and is had threaded rod 32, be used for driving baffle 33 and remove, threaded rod 32 and baffle 33's right side rear portion sliding connection, supporting mechanism 4 is including telescopic link 41, first spring 42, backup pad 43, first baffle 44 and second baffle 45, all be connected with backup pad 43 on telescopic link 41, be used for supporting not hard up coal cinder, the telescopic link 41 is gone up, sleeve has first baffle 42 and two ends of the two adjacent baffle 33 sliding connection at the back-up end of baffle 43, the both ends of the first baffle 44 and the two end 45 sliding connection are all used for driving baffle 33.

Initially, the baffle 33 is contracted in the truss 1, the supporting plate is propped against the upper wall in the truss 1, the telescopic rod 41 is in a contracted state, the first spring 42 is compressed, when people need to stop falling from the gap between the trusses 1, the motor 31 is started, the motor 31 drives the threaded rod 32 to rotate, the threaded rod 32 drives the baffle 33 to move forwards until the baffle 33 stops the gap between the trusses 1, coal blocks are prevented from falling to injure passers-by, the effect of guaranteeing the safety of people is achieved, in the process, the telescopic rod 41 moves upwards due to the reset action of the first spring 42, the supporting plate 43 is driven to move upwards until the supporting plate 43 supports the roadway roof, so that loose coal blocks on the roof are prevented from directly falling, the baffle 33 is damaged, the effect of protecting the baffle 33 is achieved, the service life of the baffle 33 is prolonged, then the motor 31 is closed, when the coal is not required to be blocked to fall, the motor 31 is started, the motor 31 drives the threaded rod 32 to reversely rotate, the baffle 33 is enabled to move backwards, the upper portion of the truss 1 extrudes the first guide plate 44, the first guide plate 44 is enabled to downwardly rotate, the supporting plate 43 close to the first guide plate 44 is driven to downwardly move, the second guide plate 45 drives each supporting plate 43 to downwardly move, the supporting plate 43 drives the telescopic rod 41 to downwardly move, the first spring 42 is compressed until the supporting plate 43 moves to the lower side of the truss 1, the truss 1 is retracted, and then the motor 31 is closed.

Example 2

On the basis of embodiment 1, as shown in fig. 1, 6 and 7, the device further comprises a barrier sweeping mechanism 5 for sweeping the guide rail 2, wherein the barrier sweeping mechanism 5 comprises a rack 51, a mounting frame 52, a sweeping disc 53 and a gear set 54, the racks 51 are fixedly connected to the guide rail 2 and used for driving the gear set 54 to rotate, the racks 51 are located on the outer side of the baffle 33, the two mounting frames 52 are respectively connected to the left side and the right side of the rear end of the baffle 33, the gear sets 54 are rotatably connected to the mounting frames 52 and used for driving the sweeping disc 53 to rotate, gears on the lower side of the gear sets 54 are meshed with the racks 51, the sweeping disc 53 is rotatably connected to the mounting frames 52, and the sweeping disc 53 is located on the inner side of the gear sets 54 and fixedly connected with gears on the upper side of the gear sets 54.

When people need to clean the broken coal blocks on the guide rail 2 in the process that the baffle 33 is contracted back into the truss 1, the baffle 33 drives the mounting frame 52 to move backwards in the process that the baffle 33 moves backwards, at this time, the rack 51 moves forwards relative to the mounting frame 52, the rack 51 drives the gear set 54 to rotate, the gear set 54 drives the cleaning disc 53 to rotate, the broken coal blocks on the guide rail 2 and the rack 51 are cleaned through the rotation of the cleaning disc 53, and the broken coal blocks on the guide rail 2 and the rack 51 are prevented from obstructing the baffle 33 to slide on the guide rail 2, so that the service efficiency of the device is improved.

As shown in fig. 1, 8 and 9, the cleaning mechanism 6 for cleaning the upper surface of the baffle 33 is further included, the cleaning mechanism 6 includes a scraper 61, a pull rope 62, a sliding block 63, a limiting plate 64 and an elastic rope 66, the left side and the right side of the outer surface of the baffle 33 are both connected with the limiting plate 64 for limiting the moving direction of the sliding block 63, the two sliding blocks 63 are respectively and slidably connected in the two limiting plates 64, the upper side of the outer surface of the baffle 33 is slidably connected with the two scraper 61 for scraping off the coal blocks on the outer surface of the baffle 33, the pull rope 62 is fixedly connected between the left scraper 61 and the left sliding block 63 and between the right side scraper 61 and the right sliding block 63, two elastic ropes 66 are fixedly connected between the two scrapers 61, and the left side and the right side of the inside of the truss 1 are both provided with guide grooves 65 for guiding the moving direction of the sliding block 63, and the sliding block 63 slides along the guide grooves 65.

When people need to clean coal on the upper surface of the baffle 33, in the process of backward movement of the baffle 33, the baffle 33 drives the sliding block 63 to move backward along the guide groove 65, the sliding block 63 moves backward and simultaneously moves downward along the limiting plate 64 due to the effect of the guide groove 65, the pull rope 62 is driven to move downward when the sliding block 63 moves downward, the pull rope 62 pulls the scraping plate 61 downward, the scraping plate 61 scrapes the coal on the upper surface of the baffle 33, the elastic rope 66 is stretched, the effect of preventing the coal on the upper surface of the baffle 33 from clamping the supporting plate 43 is achieved, the telescopic rod 41 is convenient to stretch better, when the baffle 33 moves forward, the baffle 33 drives the sliding block 63 to move forward and upward along the guide groove 65, the sliding block 63 does not pull the pull rope 62 any more, and the pull rope 62 drives the scraping plate 61 to move upward and reset due to the reset effect of the pull rope.

As shown in fig. 1, 10 and 11, the device further comprises a push-broom mechanism 7 for sweeping the coal under the supporting plate 43, the push-broom mechanism 7 comprises a fixing frame 71, cleaning brushes 72 and a second spring 73, the fixing frame 71 is welded on the inner side of the upper portion of the truss 1, the two cleaning brushes 72 are respectively connected on the left side and the right side of the front portion of the fixing frame 71 in a rotating mode, the second springs 73 are respectively wound on the outer sides of the cleaning brushes 72, and two ends of the second springs 73 are respectively connected with the fixing frame 71 and the cleaning brushes 72.

When people need to clean the tiny coal blocks around the first spring 42 below the supporting plate 43, in the process of the backward movement of the baffle 33, the first spring 42 is driven to move backward, the cleaning brush 72 is pushed by the first spring 42 to rotate backward, the second spring 73 is compressed, when the first spring 42 moves backward until no longer contacts the cleaning brush 72, the cleaning brush 72 reversely rotates and returns due to the return action of the second spring 73, the effect of cleaning the tiny coal blocks around the first spring 42 is achieved through repeated rotation of the cleaning brush 72, and the telescopic rod 41 is prevented from being blocked by accumulation of the coal blocks.

As shown in fig. 1 and 12, the filter mechanism 8 is further included for filtering out the falling coal blocks, the filter mechanism 8 includes a guide plate 81, a split box 82 and a filter screen 83, both sides of the outer surface of the baffle 33 are connected with the guide plate 81 for preventing the coal blocks from falling outside the baffle, thereby causing the waste of the coal blocks, both split boxes 82 are welded on both sides of the outer surface of the baffle 33 respectively, both split boxes 82 are located below the guide plate 81 and outside the opening of the baffle 33, both filter screens 83 are connected in the split boxes 82, and the filter screen 83 is inclined downward in the split boxes 82, so that the coal blocks can slide into the inner side of the baffle 33.

When people filter and recycle the falling coal, after the scraper 61 scrapes off the coal on the upper surface of the baffle 33, the scraped coal is mixed with water, so that the coal slides into the shunt box 82 along the guide plate 81, the coal is filtered out through the filter screen 83, the filtered coal passes through the opening on the baffle 33 through the inclined plane of the filter screen 83 and rolls into the baffle 33, and the water flows out of the outer side of the baffle 33, thereby achieving the effect of recycling the coal, and further reducing the waste of coal mine resources.

The foregoing examples have shown only the preferred embodiments of the invention, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that modifications, improvements and substitutions can be made by those skilled in the art without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. The coal mine roadway roof supporting truss device is characterized by comprising a truss (1), guide rails (2), a grid blocking mechanism (3) and a supporting mechanism (4), wherein the left side and the right side of the interior of the truss (1) are respectively connected with the guide rails (2),

grid blocking mechanisms (3) are arranged on the left side and the right side of the interior of the truss (1) and used for blocking falling coal blocks, and supporting mechanisms (4) are arranged on the grid blocking mechanisms (3) and used for supporting the coal blocks with loose top plates;

the grid baffle mechanism (3) comprises a motor (31), a threaded rod (32) and a baffle plate (33), wherein the baffle plate (33) is connected between the guide rails (2) in a sliding mode, openings are formed in the left side and the right side of the baffle plate (33), the motor (31) is installed on the right side inside the truss (1), the threaded rod (32) is connected to an output shaft of the motor (31), and the threaded rod (32) is connected with the rear portion of the right side of the baffle plate (33) in a sliding mode.

2. The coal mine roadway roof supporting truss device according to claim 1, wherein the supporting mechanism (4) comprises a telescopic rod (41), a first spring (42), a supporting plate (43), a first guide plate (44) and a second guide plate (45), the telescopic rod (41) is slidably connected to the upper side of the baffle plate (33), the supporting plate (43) is connected to the telescopic rod (41), the first spring (42) is sleeved outside the telescopic rod (41), two ends of the first spring (42) are respectively connected to the baffle plate (33) and the supporting plate (43), the first guide plate (44) is slidably connected to the upper side of the rear portion of the baffle plate (33), and the second guide plate (45) is slidably connected between the adjacent supporting plates (43).

3. The coal mine roadway roof supporting truss device is characterized by further comprising a barrier sweeping mechanism (5) for sweeping the guide rail (2), wherein the barrier sweeping mechanism (5) comprises racks (51), mounting frames (52), a cleaning disc (53) and a gear set (54), the racks (51) are connected to the guide rail (2), the racks (51) are located on the outer side of the baffle plate (33), the mounting frames (52) are connected to the rear side of the baffle plate (33), the gear sets (54) are connected to the mounting frames (52) in a rotating mode, gears on the lower sides of the gear sets (54) are meshed with the racks (51), the cleaning disc (53) is connected to the mounting frames (52) in a rotating mode, and the cleaning disc (53) is located on the inner side of the gear sets (54) and is connected with gears on the upper sides of the gear sets (54).

4. The coal mine roadway roof supporting truss device is characterized by further comprising a cleaning mechanism (6) for cleaning the upper surface of the baffle plate (33), wherein the cleaning mechanism (6) comprises a scraping plate (61), a pull rope (62), sliding blocks (63), limiting plates (64) and elastic ropes (66), the left side and the right side of the outer surface of the baffle plate (33) are respectively connected with the limiting plates (64), the sliding blocks (63) are respectively connected in the limiting plates (64), the upper side of the outer surface of the baffle plate (33) is slidingly connected with two scraping plates (61), pull ropes (62) are respectively connected between the scraping plates (61) on the left side and the sliding blocks (63) on the right side and between the scraping plates (61) on the right side and the sliding blocks (63) on the right side, the elastic ropes (66) are respectively connected between the scraping plates (61), guide grooves (65) are respectively formed in the left side and the right side of the inside of the truss (1), and the sliding blocks (63) slide along the guide grooves (65).

5. The coal mine roadway roof supporting truss device is characterized by further comprising a pushing and sweeping mechanism (7) for sweeping coal blocks below the supporting plate (43), the pushing and sweeping mechanism (7) comprises a fixing frame (71), a cleaning brush (72) and a second spring (73), the fixing frame (71) is connected to the inner side of the upper portion of the truss (1), the cleaning brush (72) is rotatably connected to the left side and the right side of the front portion of the fixing frame (71), the second spring (73) is sleeved on the outer side of the cleaning brush (72), and two ends of the second spring (73) are connected to the fixing frame (71) and the cleaning brush (72) respectively.

6. The coal mine roadway roof supporting truss device according to claim 5, further comprising a filtering mechanism (8) for filtering out falling coal blocks, wherein the filtering mechanism (8) comprises a guide plate (81), a flow dividing box (82) and a filter screen (83), the left side and the right side of the outer surface of the baffle plate (33) are respectively connected with the guide plate (81), the left side and the right side of the outer surface of the baffle plate (33) are respectively connected with the flow dividing box (82), the flow dividing boxes (82) are respectively located below the guide plate (81) and outside the opening of the baffle plate (33), and the filter screens (83) are respectively connected in the flow dividing boxes (82).

7. A roof truss arrangement for a coal mine tunnel according to claim 6, wherein the screen (83) is arranged to slope downwardly within the box (82).