CN211116105U

CN211116105U - Coal mining gas discharging equipment

Info

Publication number: CN211116105U
Application number: CN201922275545.4U
Authority: CN
Inventors: 杜海刚; 杨军伟; 冯姗; 郭明涛; 张鹏
Original assignee: Liupanshui Normal University
Current assignee: Liupanshui Normal University
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-07-28
Anticipated expiration: 2029-12-18

Abstract

The utility model provides a coal mining gas discharging equipment, the utility model relates to a breather technical field for the coal mine, the seal box is fixed to be set up on the right side wall of support, the right-hand member of axis of rotation is sealed to wear to establish the bearing and is connect soon on the left side wall of seal box, the sealed bearing that wears to establish on the rear side wall of seal box is connect soon with the transfer line, the rear end activity of transfer line is worn to establish on the rear side wall of exhaust chamber, the right-hand member cover of axis of rotation is established and is fixed with the face gear, the front end cover of transfer line is established and is fixed with the straight gear, fixedly on the rear side wall of exhaust chamber is provided with the mount pad, fixedly on the mount pad is provided; the motor is arranged outside the exhaust chamber, the rotating shaft is driven to rotate through the transmission rod, the straight gear and the end face gear, the fan blades are driven to rotate to ventilate, the straight gear and the end face gear are packaged through the sealing box, sparks generated in the working process of the gear set are prevented from contacting with external gas, the fact that exhaust gas does not contact with the sparks is guaranteed, and production safety is guaranteed.

Description

Coal mining gas discharging equipment

Technical Field

The utility model relates to a breather technical field for the colliery, concretely relates to coal mining gas discharging equipment.

Background

The underground tunnel is required to be ventilated in the coal mining process, so that redundant gas in the underground tunnel is discharged, and explosion caused by gas siltation in the underground tunnel is avoided.

The gas exhausting and air exchanging device in the prior art adopts a direct exhaust type fan to be matched with an air guide pipe for air extraction, a motor of the fan is arranged in a ventilation pipeline, electric sparks generated when the motor works are easy to ignite gas, the use is unsafe, and improvement is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a reasonable in design, convenient to use's coal mining gas discharging equipment, its outside of arranging the air discharge chamber in with the motor, drive the axis of rotation through transfer line, straight-teeth gear, terminal gear and rotate, and then drive the flabellum and rotate and take a breath, it encapsulates straight-teeth gear, terminal gear through the seal box, avoids the mars and the outside gas contact that produce in the gear train work, guarantees that exhaust gas does not contact with the mars, guarantees production safety.

In order to achieve the above object, the utility model adopts the following technical scheme: the exhaust device comprises an air inlet pipe, an exhaust chamber and an air outlet pipe, wherein the air inlet pipe is fixedly arranged on the right side wall of the exhaust chamber in a penetrating manner, the air outlet pipe is fixedly arranged on the left side wall of the exhaust chamber in a penetrating manner, a support is fixedly arranged in the exhaust chamber, a bearing is arranged on the support in a penetrating manner and is rotatably connected with a rotating shaft, and a fan blade is fixedly arranged at the left end of the rotating; it still contains the seal box, the transfer line, including a motor, wherein the seal box is fixed to be set up on the right side wall of support, the right-hand member of axis of rotation is sealed to be worn to establish the bearing and connects soon on the left side wall of seal box, sealed wearing to establish the bearing on the back lateral wall of seal box and connect soon the transfer line, the rear end activity of transfer line is worn to establish on the back lateral wall of exhaust chamber, the right-hand member cover of axis of rotation is established and is fixed with the face gear, the front end cover of transfer line is established and is fixed with the spur gear, the face gear, the spur gear all sets up in the seal box, and the face gear sets up with the spur gear meshing, fixed being provided with the mount pad on the back lateral wall of exhaust chamber, the fixed motor.

Further, last inside wall of blast chamber on the hinge be equipped with the closing plate, and the closing plate setting is on the right side of seal box, the fixed sealing ring that is provided with in the blast chamber, the sealing ring sets up the right side at the closing plate, the fixed guide bar that is provided with on the left side wall of sealing ring, wear to be equipped with waist shape hole on the closing plate, the guide bar activity is worn to establish in waist shape is downthehole, the left end of guide bar is fixed to be provided with the dog, the cover is equipped with the spring on the guide bar, the right-hand member of spring is fixed to be set up on the left side wall of sealing ring, the left end.

Furthermore, the preceding lateral wall of exhaust chamber on seted up constant voltage mouth, and the setting of constant voltage mouth is on the right side of support, the front side cover of constant voltage mouth is provided with the baffle, fixed being provided with two spouts on the preceding lateral wall of exhaust chamber, and two spout symmetries set up the upper and lower both sides at the constant voltage mouth, the upper and lower both sides limit of baffle slides respectively and sets up in two upper and lower spouts.

Furthermore, the left port of the air outlet pipe is sleeved and fixed with a reversing pipe, the outlet end of the reversing pipe is bent downwards, and the lower port of the reversing pipe is lower than the lower side wall of the exhaust chamber.

Furthermore, a net box is fixedly covered on the left side wall of the exhaust chamber, and the air outlet pipe and the reversing pipe are both arranged in the net box.

After the structure is adopted, the utility model discloses beneficial effect does: a coal mining gas discharging equipment, its outside of arranging the air discharge chamber in with the motor drives the axis of rotation through transfer line, straight-teeth gear, terminal gear and rotates, and then drives the flabellum and rotate and take a breath, and it encapsulates straight-teeth gear, terminal gear through the seal box, avoids the mars and the outside gas contact that produce in the gear train work, guarantees that exhaust gas does not contact with the mars, guarantees production safety, the utility model has the advantages of simple structure, it is reasonable to set up, the cost of manufacture is low.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a sectional view a-a in fig. 1.

Fig. 4 is a sectional view B-B in fig. 1.

Fig. 5 is a cross-sectional view C-C in fig. 2.

Description of reference numerals:

the air exhaust chamber comprises an air exhaust chamber 1, an air inlet pipe 2, an air outlet pipe 3, a support 4, a rotating shaft 5, fan blades 6, a sealing box 7, a transmission rod 8, a face gear 9, a straight gear 10, a mounting seat 11, a motor 12, a sealing plate 13, a sealing ring 14, a kidney-shaped hole 15, a guide rod 16, a spring 17, a constant pressure port 18, a baffle plate 19, a sliding groove 20, a reversing pipe 21, a net box 22 and a stop block 23.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1 to 5, the present embodiment includes an air inlet pipe 2, an exhaust chamber 1, an air outlet pipe 3, a seal box 7, a transmission rod 8, and a motor 12, wherein the air inlet pipe 2 is connected to a right side wall of the exhaust chamber 1 through a flange, the air outlet pipe 3 is connected to a left side wall of the exhaust chamber 1 through a flange, a reversing pipe 21 is connected to a left end of the air outlet pipe 3 through a flange, an outlet end of the reversing pipe 21 is bent downward, a lower end opening of the reversing pipe 21 is lower than a lower side wall of the exhaust chamber 1, a net cage 22 is fixed on a left side wall of the exhaust chamber 1 by covering screws, the air outlet pipe 3 and the reversing pipe 21 are both arranged in the net cage 22, the reversing pipe 21 can prevent external rainwater from entering the exhaust chamber 1 through the air outlet pipe 3, and the net cage 22 can prevent external dust from;

a support 4 is welded in the exhaust chamber 1, a bearing is arranged on the support 4 in a penetrating way and is screwed with a rotating shaft 5, a fan blade 6 is fixed at the left end of the rotating shaft 5 through a bolt, a sealing box 7 is fixed on the right side wall of the support 4 through a screw, the right end of the rotating shaft 5 is arranged on the left side wall of the sealing box 7 through a penetrating way and is screwed with a transmission rod 8 through a sealing bearing, the rear end of the transmission rod 8 is movably arranged on the rear side wall of the exhaust chamber 1 in a penetrating way, an end face gear 9 is arranged at the right end of the rotating shaft 5 in a sleeved way and is fixed with a screw, a straight gear 10 is arranged at the front end of the transmission rod 8 in a sleeved way, the end face gear 9 and the straight gear 10 are both arranged in the sealing box 7, the end face gear 9 is meshed with the straight gear 10, the upper side wall of the sealing box 7 is opened, a cover is covered on the opening in a sealing way, a mounting seat 11 is, an output shaft of a motor 12 is connected and fixed with the rear end of a transmission rod 8, a sealing plate 13 is hinged on the upper inner side wall of an exhaust chamber 1, the sealing plate 13 is arranged on the right side of a sealing box 7, a sealing ring 14 is welded in the exhaust chamber 1, the sealing ring 14 is arranged on the right side of the sealing plate 13, a guide rod 16 is welded on the left side wall of the sealing ring 14, a kidney-shaped hole 15 is arranged on the sealing plate 13 in a penetrating mode, the guide rod 16 is movably arranged in the kidney-shaped hole 15 in a penetrating mode, a stop block 23 is welded at the left end of the guide rod 16, a spring 17 is sleeved on the guide rod 16, the right end of the spring 17 is welded on the left side wall of the sealing ring 14, the left end of the spring 17 movably abuts on the right side wall of the sealing plate 13, the spring 17 abuts on the sealing plate 13 to rotate to the left to open during normal discharge, when extracted gas is accidentally detonated, an, prevent to produce chain explosion, constant voltage mouth 18 has been seted up on the preceding lateral wall of air discharge chamber 1, and constant voltage mouth 18 sets up the right side at support 4, the front side cover of constant voltage mouth 18 is provided with baffle 19, it is equipped with two spouts 20 to weld on the preceding lateral wall of air discharge chamber 1, and two spouts 20 symmetry sets up the upper and lower both sides at constant voltage mouth 18, the upper and lower both sides limit of baffle 19 slides respectively and sets up in two upper and lower spouts 20, open constant voltage mouth 18, can sneak into partial air when flabellum 6 bleeds, when the gas concentration of bleeding is great, for guaranteeing to discharge safety, the mixable air bleed, reduce the gas concentration of discharging gas.

The working principle of the specific embodiment is as follows: motor 12 drives transfer line 8 and rotates, and transfer line 8 drives axis of rotation 5 through spur gear 10, face gear 9 annular back and rotates, and axis of rotation 5 drives flabellum 6 and rotates, and flabellum 6 passes through the gas in the 2 extraction coal mine galleries of intake pipe to discharge the gallery through the gas of 3 extractions of outlet duct: when installed, the exhaust chamber 1 is installed outside the tunnel; the motor 12 is arranged outside the exhaust chamber 1, the motor 12 is not directly contacted with gas in the pipeline, and spark generated during the operation of the motor 12 can not ignite the gas; when an accident occurs and the discharged gas is subjected to deflagration, shock waves generated by deflagration push the sealing plate 13 to the right to abut against the sealing ring 14, so that the air inlet pipe 2 is blocked tightly, and the linked deflagration generated in the air inlet pipe 2 is prevented; in the process of exhausting the gas to be exhausted, the baffle plate 19 is opened, air is filled into the exhaust chamber 1 through the constant pressure port 18, the concentration of the gas at the exhaust position is diluted, the gas is exhausted through the air outlet pipe 3, the concentration of the exhausted gas can be reduced, and deflagration is prevented.

After adopting above-mentioned structure, this embodiment beneficial effect does:

1. the motor 12 is arranged outside the exhaust chamber 1, the motor 12 drives the rotating shaft 5 to rotate through the transmission rod 8, the meshed straight gear 10 and the face gear 9, and further drives the fan blades 6 to rotate for exhausting, so that the motor 12 can be isolated from the extracted gas, electric sparks generated when the motor 12 is started and stopped are prevented from contacting with the gas, and deflagration of the gas can be prevented;

2. straight-teeth gear 10, face gear 9 all set up in seal box 7, and seal box 7 is isolated with straight-teeth gear 10, face gear 9 and outside gas, and can pour into lubricating oil in the seal box 7, and the gear train rotates the spark that the in-process can not produce with the gas contact, guarantees production safety.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. A coal mining gas discharge device comprises an air inlet pipe (2), an exhaust chamber (1) and an air outlet pipe (3), wherein the air inlet pipe (2) is fixedly arranged on the right side wall of the exhaust chamber (1) in a penetrating manner, the air outlet pipe (3) is fixedly arranged on the left side wall of the exhaust chamber (1) in a penetrating manner, a support (4) is fixedly arranged in the exhaust chamber (1), a bearing is arranged on the support (4) in a penetrating manner and is rotatably connected with a rotating shaft (5), and fan blades (6) are fixedly arranged at the left end of the rotating shaft (5); the method is characterized in that: the exhaust device also comprises a sealing box (7), a transmission rod (8) and a motor (12), wherein the sealing box (7) is fixedly arranged on the right side wall of the bracket (4), the right end of the rotating shaft (5) is hermetically penetrated and connected with the left side wall of the sealing box (7) in a screwing way through a bearing, the rear side wall of the sealing box (7) is hermetically penetrated and connected with the transmission rod (8) in a screwing way through a bearing, the rear end of the transmission rod (8) is movably penetrated and arranged on the rear side wall of the exhaust chamber (1), the right end of the rotating shaft (5) is sleeved and fixed with an end face gear (9), the front end of the transmission rod (8) is sleeved and fixed with a straight gear (10), the end face gear (9) and the straight gear (10) are both arranged in the sealing box (7), the end face gear (9) is meshed with the straight gear (10), the rear side wall of the exhaust chamber (1) is fixedly provided with a mounting seat (11, the output shaft of the motor (12) is fixedly connected with the rear end of the transmission rod (8).

2. A coal mining gas discharge apparatus according to claim 1, wherein: last inside wall of exhaust chamber (1) on the hinge be equipped with closing plate (13), and closing plate (13) set up the right side at seal box (7), exhaust chamber (1) internal fixation is provided with sealing ring (14), sealing ring (14) set up the right side at closing plate (13), the fixed guide bar (16) that is provided with on the left side wall of sealing ring (14), waist shape hole (15) wear to be equipped with on closing plate (13), guide bar (16) activity is worn to establish in waist shape hole (15), the left end of guide bar (16) is fixed and is provided with dog (23), the cover is equipped with spring (17) on guide bar (16), the right-hand member of spring (17) is fixed to be set up on the left side wall of sealing ring (14), the left end activity of spring (17) is supported and is established on the right side wall of closing plate (13).

3. A coal mining gas discharge apparatus according to claim 1, wherein: the exhaust chamber (1) the preceding lateral wall on seted up constant voltage mouth (18), and constant voltage mouth (18) set up the right side at support (4), the front side of constant voltage mouth (18) covers and is provided with baffle (19), fixed two spout (20) that are provided with on the preceding lateral wall of exhaust chamber (1), and two spout (20) symmetry set up in the upper and lower both sides of constant voltage mouth (18), the upper and lower both sides limit of baffle (19) slides respectively and sets up in two spout (20) from top to bottom.

4. A coal mining gas discharge apparatus according to claim 1, wherein: the left end opening of the air outlet pipe (3) is sleeved with and fixed with a reversing pipe (21), the outlet end of the reversing pipe (21) is bent downwards, and the lower end opening of the reversing pipe (21) is lower than the lower side wall of the exhaust chamber (1).

5. A coal mining gas discharge apparatus according to claim 1, wherein: a net cage (22) is fixedly covered on the left side wall of the exhaust chamber (1), and the air outlet pipe (3) and the reversing pipe (21) are both arranged in the net cage (22).