CN217950331U

CN217950331U - Hole spraying prevention device for coal mine drilling

Info

Publication number: CN217950331U
Application number: CN202222493988.2U
Authority: CN
Inventors: 王春林; 陈辰; 白帆; 奚岱庸
Original assignee: Shaanxi Yanchang Petroleum Balasu Coal Industry Co ltd
Current assignee: Shaanxi Yanchang Petroleum Balasu Coal Industry Co ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2022-12-02
Anticipated expiration: 2032-09-19

Abstract

The utility model discloses a colliery drilling blowout preventer relates to colliery downhole drilling technical field. The on-line screen storage device comprises a base, the base is connected with the support frame, reaction box and cushion box are placed to the base, the support frame is equipped with actuating mechanism, actuating mechanism is connected with the backup pad, first motor is connected to the backup pad, first motor output shaft has the connecting block, the connecting block is connected with the drilling rod, the connecting block is inserted and is equipped with first intake pipe, first intake pipe is inserted and is located the reaction box, be equipped with the connecting pipe between reaction box and the cushion box, the cushion box is inserted and is equipped with the second intake pipe, second intake pipe connection has the supporting shoe, the supporting shoe is connected with the support frame, the intake pipe cover is equipped with the briquetting, the briquetting is equipped with supporting mechanism, be equipped with buffer mechanism between cushion box and the connecting pipe, be equipped with complementary unit in the drilling rod. The utility model discloses when gas concentration is too high, can support around the drilling rod, improve the security performance of device.

Description

Coal mine drilling orifice prevention device

Technical Field

The utility model relates to a colliery is drilling technical field in the pit, in particular to colliery drilling blowout preventer.

Background

Coal mines are areas where humans mine coal resources in coal-rich mining areas, and are generally divided into underground coal mines and open pit coal mines, most coal mines in China belong to underground coal mines, the coal mines include large areas of the ground, underground and related facilities, and the coal mines are reasonable spaces excavated by the humans when excavating geological layers rich in coal, and generally include roadways, excavation surfaces and the like.

In the coal mining in-process, along with the extension of mine degree of depth, can appear in the phenomenon of the continuous blowout a large amount of buggy and gas from the drilling in the short time, the drilling orifice promptly, a large amount of gas of gushing out in the short time makes tunnel gas exceed standard in the drilling, serious harm constructor personal safety, the application of the utility model discloses a china utility model patent of bulletin No. CN209761380U discloses a colliery is drilling and is prevented spouting dust collector in the pit, including drilling plate, drilling rod through-hole, gas gap, dust cage, the steering tube, damping device, the shower nozzle, the water tank, prevent spouting the gasbag, prevent spouting weak face, the blowout prevention pipe, gas drainage hole, slag notch, the transmission pipe, high pressure water pump, venturi, the scum hole, alkaline surfactant solvent and hose.

Above-mentioned scheme can prevent the drilling orifice to a certain extent, and when gas concentration was too big, can produce vibrations and not hard up the fracture around the drilling rod, but above-mentioned scheme can not support around drilling rod and the drilling rod, and the security performance is lower.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the coal mine drilling orifice prevention device is high in safety performance.

To the above technical problem, the utility model discloses a technical scheme does: the utility model provides a colliery drilling blowout prevention hole device, includes the base, base fixedly connected with support frame, reaction box and buffer tank have been placed to the base, the support frame is equipped with actuating mechanism, actuating mechanism is connected with the backup pad, the first motor of backup pad fixed connection, first motor output shaft fixedly connected with connecting block, connecting block fixedly connected with drilling rod, the drilling rod with the connecting block intercommunication, the inlet port has been seted up to drilling rod bottom week side, drilling rod fixedly connected with drill bit, the connecting block is inserted and is equipped with first intake pipe and fixed connection between the two, first intake pipe is inserted and is located reaction box and sliding connection between the two, reaction box with be equipped with the connecting pipe between the buffer tank, connecting pipe one end is inserted and is located reaction box and fixed connection between the two, the connecting pipe other end is inserted and is located buffer box and fixed connection between the two, buffer tank is inserted and is equipped with second intake pipe and fixed connection between the two, second intake pipe fixedly connected with supporting shoe, the supporting shoe with support frame fixed connection, second intake pipe cover is equipped with briquetting and sliding connection between the two, the briquetting is equipped with supporting mechanism, the buffer tank with buffer mechanism is equipped with in the connecting pipe, be equipped with complementary unit in the drilling rod.

Furthermore, the driving mechanism comprises a second motor, the second motor is fixedly connected with the support frame, an output shaft of the second motor is fixedly connected with a first belt wheel, the support frame is rotatably connected with a second belt wheel, the first belt wheel and the second belt wheel are fixedly connected with a lead screw, the lead screw is rotatably connected with the support frame, the first belt wheel is connected with the second belt wheel through a belt, the support plate is inserted in the lead screw and is in threaded connection with the lead screw, the support plate is fixedly connected with two sliding blocks, the support frame is provided with two sliding grooves, and the sliding blocks slide in the sliding grooves.

Furthermore, the supporting mechanism comprises at least two sliding rods, the sliding rods are inserted in the supporting plate and are in sliding connection with the supporting plate, one end of each sliding rod is fixedly connected with the pressing block, the other end of each sliding rod is fixedly connected with the pressing plate, the sliding rods are sleeved with first springs, one end of each first spring is fixedly connected with the supporting plate, and the other end of each first spring is fixedly connected with the pressing block.

Furthermore, buffer gear includes two baffles, the baffle with the baffle inside wall is articulated, the baffle articulates there are two second springs, the second spring with the baffle is articulated.

Furthermore, the auxiliary mechanism comprises a sliding barrel, the sliding barrel is inserted into the drill rod and is in sliding connection with the drill rod, bristles are arranged on the outer side wall of the sliding barrel, a support is fixedly connected to the inner side wall of the drill rod, an air cylinder is fixedly connected to the support, and an air cylinder output shaft is fixedly connected with the sliding barrel.

Further, four gyro wheels are installed to the base, four gyro wheels are located four edges of base respectively, base fixedly connected with handrail, the sensor is installed to the drilling rod inside wall, the siren is installed to the support frame, the siren with the sensor electricity is connected.

Compared with the prior art, the utility model beneficial effect be: (1) The utility model discloses a drilling rod, drill bit, inlet port, connecting block, first intake pipe and reaction box, when gas concentration is lower, in gas directly entered into the reaction box through inlet port and first intake pipe, gas reacted with the alkaline solution in the reaction box, handled gas, prevented the orifice, need not artifically carry out extra operation, and is nimble convenient.

(2) The utility model discloses a connecting pipe, baffle-box, second intake pipe, briquetting, slide bar, first spring and clamp plate, when gas concentration is too big, do not have the part gas that contacts with alkaline solution to promote the briquetting motion through the second intake pipe, the briquetting promotes slide bar and clamp plate motion, utilizes the clamp plate to support the environment around the drilling rod, alleviates the vibrations of environment around the drilling rod and the not hard up degree that splits, improve the security of device.

(3) The utility model discloses a baffle and second spring, when getting into the gas concentration in the baffle-box too big, at first can promote the baffle motion, the baffle plays the cushioning effect, avoids direct gas direct impact briquetting, improves the stability of device.

Drawings

Fig. 1 is the utility model relates to a colliery drilling orifice preventing device's overall structure schematic diagram.

Fig. 2 is a schematic diagram of a second perspective structure of fig. 1.

Fig. 3 is a schematic view of the drive mechanism.

Fig. 4 is a schematic view of the support mechanism.

FIG. 5 is a schematic view showing a connection structure of the buffer mechanism, the connection pipe, the reaction tank and the buffer tank.

FIG. 6 is a schematic view of the connection structure of the connection block, the drill rod and the drill bit.

Fig. 7 is a schematic view of the internal structure of the drill rod.

Reference numbers: 1. a base; 2. a support frame; 3. a drive mechanism; 31. a second motor; 32. a first pulley; 33. a second pulley; 34. a screw rod; 35. a belt; 36. a slider; 37. a chute; 4. a support mechanism; 41. a slide bar; 42. pressing a plate; 43. a first spring; 5. a buffer mechanism; 51. a baffle plate; 52. a second spring; 6. an auxiliary mechanism; 61. a slide cylinder; 62. a support; 63. a cylinder; 7. a reaction box; 8. a buffer tank; 9. a support plate; 10. a first motor; 11. connecting blocks; 12. a drill stem; 13. an air inlet; 14. a drill bit; 15. a first intake pipe; 16. a connecting pipe; 17. a second intake pipe; 18. a support block; 19. briquetting; 20. a roller; 21. a handrail; 22. an alarm.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better explanation of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The embodiment is as follows: as shown in fig. 1 to 7, the coal mine drilling hole spraying prevention device provided by this embodiment is formed by connecting a base 1, a support frame 2, a reaction box 7, a buffer box 8, a driving mechanism 3, a support plate 9, a first motor 10, a connecting block 11, a drill rod 12, a drill bit 14, a first air inlet pipe 15, a connecting pipe 16, a second air inlet pipe 17, a support block 18, a pressing block 19, a support mechanism 4, a buffer mechanism 5 and an auxiliary mechanism 6.

As shown in fig. 1 and 2, a coal mine drilling hole spray-proof device comprises a base 1, the base 1 is fixedly connected with a support frame 2, the base 1 is provided with a reaction box 7 and a buffer box 8, the support frame 2 is provided with a driving mechanism 3, the driving mechanism 3 is connected with a support plate 9, the support plate 9 is fixedly connected with a first motor 10, an output shaft of the first motor 10 is fixedly connected with a connecting block 11, the connecting block 11 is fixedly connected with a drill stem 12, in particular, the inside of the drill stem 12 is of a hollow structure, in order to pass through gas, the drill stem 12 is communicated with the connecting block 11, the gas entering the drill stem 12 can enter the connecting block 11, an air inlet 13 is arranged on the peripheral side of the bottom of the drill stem 12, the gas enters the drill stem 12 through the air inlet 13, the drill stem 12 is fixedly connected with a drill bit 14, the connecting block 11 is inserted with a first air inlet pipe 15 and fixedly connected with the reaction box 7, the first air inlet pipe 15 is inserted in the reaction box 7 and slidably connected with the reaction box 7, the first air inlet pipe 15 can slide in the reaction box 7 along with the reaction box, the second air inlet 17, a second air inlet 17 is fixedly connected with a buffer box 17, a second air inlet 17 is arranged in the buffer box 17, a second air inlet 17 is fixedly connected with a buffer box 17, an auxiliary mechanism 6 is arranged in the drill rod 12.

As shown in fig. 1 and 3, the driving mechanism 3 includes a second motor 31, the second motor 31 is fixedly connected to the support frame 2, an output shaft of the second motor 31 is fixedly connected to a first pulley 32, the support frame 2 is rotatably connected to a second pulley 33, the first pulley 32 and the second pulley 33 are both fixedly connected to a lead screw 34, the lead screw 34 is rotatably connected to the support frame 2, the first pulley 32 is connected to the second pulley 33 through a belt 35, the first pulley 32, the second pulley 33 and the belt 35 are arranged to realize synchronous rotation of the two lead screws 34 through the second motor 31, the support plate 9 is inserted into the lead screw 34 and is in threaded connection with the lead screw 34, the two lead screws 34 are arranged to ensure stability of the support plate 9 during movement, the support plate 9 is fixedly connected to two sliders 36, the support frame 2 is provided with two sliding grooves 37, the sliders 36 slide in the sliding grooves 37, and the sliders 36 and the sliding grooves 37 are arranged to ensure that the support plate 9 can only make linear movement along a vertical direction with movement of the lead screw 34.

As shown in fig. 1 and 4, the supporting mechanism 4 includes at least two sliding rods 41, the number of the sliding rods 41 is four in the drawing, the sliding rods 41 are inserted in the supporting plate 9 and are slidably connected with each other, one end of each sliding rod 41 is fixedly connected with the pressing block 19, the other end of each sliding rod 41 is fixedly connected with the pressing plate 42, the diameter of each pressing plate 42 is larger than that of each sliding rod 41, the pressing plate 42 is in contact with the ground around the drill rod 12 to support the ground around the drill rod 12, so that the vibration and the loosening and cracking around the drill rod 12 can be reduced, the sliding rods 41 are sleeved with first springs 43, one ends of the first springs 43 are fixedly connected with the supporting plate 9, the other ends of the first springs 43 are fixedly connected with the pressing block 19, and the first springs 43 play a role in supporting and resetting the pressing block 19.

As shown in fig. 2 and 5, the damper mechanism 5 includes two baffles 51, the baffles 51 are hinged to the inner side wall of the buffer box 8, the baffles 51 are hinged to two second springs 52, the second springs 52 are hinged to the buffer box 8, the second springs 52 serve to support and restore the baffles 51, and the baffles 51 are located in the buffer box 8 and between the connecting pipe 16 and the second air inlet pipe 17.

As shown in fig. 6 and 7, the auxiliary mechanism 6 includes a sliding cylinder 61, the sliding cylinder 61 is hollow, the sliding cylinder 61 is inserted into the drill rod 12 and is slidably connected with the drill rod 12, bristles are arranged on the outer side wall of the sliding cylinder 61, a support 62 is fixedly connected to the inner side wall of the drill rod 12, a cylinder 63 is fixedly connected to the support 62, the cylinder 63 is supported by the support 62, an output shaft of the cylinder 63 is fixedly connected with the sliding cylinder 61, and the air inlet 13 is cleaned by the bristles through movement of the sliding cylinder 61, so that the air inlet 13 is prevented from being blocked.

As shown in fig. 1 and 2, four rollers 20 are installed on the base 1, the four rollers 20 are respectively located at four corners of the base 1, the base 1 is fixedly connected with a handrail 21, a sensor is installed on the inner side wall of the drill pipe 12, the sensor is not marked in the figure, an alarm 22 is installed on the support frame 2, the alarm 22 is electrically connected with the sensor, when the concentration of gas entering the drill pipe 12 reaches the standard set by the sensor, the sensor transmits a signal to the alarm 22, and the alarm 22 gives an alarm to remind a worker.

The utility model discloses a theory of operation does: (1) The operator manually controls the handrail 21, the whole device is moved to a specified position through the roller 20, the first motor 10 and the second motor 31 are started, the output shaft of the second motor 31 drives the first belt wheel 32 to rotate, the first belt wheel 32 drives the second belt wheel 33 to rotate through the belt 35, the first belt wheel 32 and the second belt wheel 33 drive the corresponding screw rods 34 to rotate, the screw rods 34 rotate, the support plate 9 can move on the screw rods 34 along the axes of the screw rods 34, the support plate 9 drives the sliding block 36 to slide in the sliding groove 37, the support plate 9 drives the first motor 10, the sliding rod 41, the first spring 43, the first air inlet pipe 15 and the pressing block 19 to move downwards, the output shaft of the first motor 10 drives the drill rod 12 to rotate, the drill hole is drilled through the drill rod 12, gas in a mine can enter the drill rod 12 through the air inlet hole 13 during drilling, then enters the connecting block 11 through the drill rod 12, the gas in the connecting block 11 enters the reaction box 7 through the first air inlet pipe 15, and reacts with an alkaline solution in the reaction box 7.

(2) When the gas concentration entering the drill stem 12 is too high and reaches the standard set by the sensor, the sensor transmits a signal to the alarm 22, the alarm 22 gives an alarm to remind a worker, meanwhile, the gas concentration in the drill stem 12 enters the connecting block 11 and enters the reaction box 7 through the first gas inlet pipe 15, a part of the gas reacts with an alkaline solution in the reaction box 7, the other part of the gas enters the buffer box 8 through the connecting pipe 16, after the gas in the connecting pipe 16 enters the buffer box 8, the baffle 51 is firstly pushed open, then the gas enters the pressing block 19 through the second gas inlet pipe 17, the gas in the second gas inlet pipe 17 pushes the pressing block 19 to move downwards, the pressing block 19 drives the sliding rod 41 to move, the sliding rod 41 drives the pressing plate 42 to move, the pressing plate 42 is pushed against the ground around the drill stem 12 to support the ground around the drill stem 12, the vibration and loosening and cracking of the ground environment around the drill stem 12 caused by the high-concentration gas are reduced, a certain processing time is reserved for the worker, and the safety performance of the device is improved.

The present invention is not limited to the above embodiments, and the skilled in the art can make various changes without creative labor, and all the changes fall within the protection scope of the present invention.

Claims

1. The utility model provides a colliery drilling prevents orifice device which characterized in that: the device comprises a base (1), wherein a support frame (2) is fixedly connected with the base (1), a reaction box (7) and a buffer box (8) are placed on the base (1), a driving mechanism (3) is arranged on the support frame (2), the driving mechanism (3) is connected with a support plate (9), the support plate (9) is fixedly connected with a first motor (10), an output shaft of the first motor (10) is fixedly connected with a connecting block (11), the connecting block (11) is fixedly connected with a drill rod (12), the drill rod (12) is communicated with the connecting block (11), air inlets (13) are formed in the peripheral side of the bottom of the drill rod (12), a drill bit (14) is fixedly connected with the drill rod (12), a first air inlet pipe (15) is inserted into the connecting block (11) and is fixedly connected with the connecting block, the first air inlet pipe (15) is inserted into the reaction box (7) and is in sliding connection with the reaction box, a connecting pipe (16) is arranged between the reaction box (7) and the buffer box (8), one end of the connecting pipe is inserted into the reaction box (7) and is fixedly connected with the buffer box (8), the buffer box (17) and a second air inlet pipe (17) is connected with the buffer box (17), the support device is characterized in that a support block (18) is fixedly connected to the second air inlet pipe (17), the support block (18) is fixedly connected with the support frame (2), a press block (19) is sleeved on the second air inlet pipe (17) and is in sliding connection with the second air inlet pipe, a support mechanism (4) is arranged on the press block (19), a buffer mechanism (5) is arranged between the buffer box (8) and the connecting pipe (16), and an auxiliary mechanism (6) is arranged in the drill rod (12).

2. The coal mine drilling blowout preventer according to claim 1, wherein: actuating mechanism (3) include second motor (31), second motor (31) with support frame (2) fixed connection, second motor (31) output shaft fixedly connected with first band pulley (32), support frame (2) rotate and are connected with second band pulley (33), first band pulley (32) the equal fixedly connected with lead screw (34) of second band pulley (33), lead screw (34) with support frame (2) rotate and are connected, first band pulley (32) with second band pulley (33) are connected through belt (35), backup pad (9) are inserted and are located lead screw (34) and threaded connection between the two, two slider (36) of backup pad (9) fixedly connected with, two spout (37) have been seted up in support frame (2), slider (36) are in slide in spout (37).

3. The coal mine drilling blowout preventer according to claim 1, wherein: the supporting mechanism (4) comprises at least two sliding rods (41), the sliding rods (41) are inserted into the supporting plate (9) and are in sliding connection with each other, one end of each sliding rod (41) is fixedly connected with the pressing block (19), the other end of each sliding rod (41) is fixedly connected with the pressing plate (42), the sliding rods (41) are sleeved with first springs (43), one ends of the first springs (43) are fixedly connected with the supporting plate (9), and the other ends of the first springs (43) are fixedly connected with the pressing block (19).

4. The coal mine drilling blowout preventer according to claim 1, wherein: buffer gear (5) include two baffle (51), baffle (51) with baffle (8) inside wall is articulated, baffle (51) articulate there are two second spring (52), second spring (52) with baffle (8) are articulated.

5. The coal mine drilling blowout preventer according to claim 1, wherein: the auxiliary mechanism (6) comprises a sliding barrel (61), the sliding barrel (61) is inserted into the drill rod (12) and is in sliding connection with the drill rod (12), bristles are arranged on the outer side wall of the sliding barrel (61), a support (62) is fixedly connected to the inner side wall of the drill rod (12), an air cylinder (63) is fixedly connected to the support (62), and an output shaft of the air cylinder (63) is fixedly connected with the sliding barrel (61).

6. The coal mine drilling blowout preventer according to claim 1, wherein: four gyro wheels (20) are installed to base (1), four gyro wheels (20) are located four edges of base (1) respectively, base (1) fixedly connected with handrail (21), the sensor is installed to drilling rod (12) inside wall, siren (22) is installed to support frame (2), siren (22) with the sensor electricity is connected.