Dust falling device of mining heading machine

Abstract

A dust falling device of a mining heading machine comprises an adjusting mechanism and a spraying assembly. The spraying assembly is communicated with the water tank through a pump, comprises a flow guide cover and a spray head rotationally arranged in the flow guide cover and is used for watering and dust falling; the adjusting mechanism is used for driving the spraying assembly to rotate and comprises a fixing base, a first connecting rod, a second connecting rod and a driving mechanism. The lower part of the fixed seat is connected with the driving mechanism; the driving mechanism comprises a driving shaft which is horizontally and rotatably connected to the bottom of the fixing seat and driven by a first motor, the driving shaft is slidably connected with a moving block through a thread pair, and the lower end of the moving block is hinged to the upper end of a second connecting rod and used for driving the upper end of the second connecting rod to horizontally and linearly reciprocate; the lower end of the second connecting rod is hinged with the top of the fairing; the lower end of the first connecting rod is hinged to the top end of the flow guide cover, and the upper end of the first connecting rod and the lower end of the second connecting rod are arranged at intervals. According to the utility model, the spraying assembly is driven to act and swing, so that the spraying range of the spraying assembly is expanded, and the dust falling effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mining equipment, in particular to a dust reduction device for a mining tunneling machine. Background Art

[0002] There are many dust sources and large amounts of dust in the fully-mechanized tunnels of my country's coal mines, which leads to a significant increase in the dust concentration in the air in the tunnels, or even seriously exceeds the standard. These high-concentration, highly dispersed dusts seriously affect the working environment of the tunnels and endanger the health of workers.

[0003] During the ore mining process, the ore dust will spread around under the action of airflow. However, the existing mining tunneling machines usually have a dust removal device within the cutting head range of the tunneling machine, which has a small dust removal range and poor dust removal effect. Utility Model Content

[0004] In view of the problems and shortcomings in the prior art, the utility model provides a dust reduction device for a mining tunneling machine.

[0005] The technical solution of this utility model is as follows:

[0006] A dust suppression device for a mining tunneling machine, comprising an adjustment mechanism and a spray assembly;

[0007] The spray assembly is connected to the water tank through a pump, and includes a flow guide cover and a spray head rotatably arranged in the flow guide cover, and is used for spraying water to reduce dust;

[0008] The adjustment mechanism is used to drive the spray assembly to rotate, and includes a fixed seat, a first connecting rod, a second connecting rod and a driving mechanism;

[0009] The upper part of the fixed seat is fixed on the tunnel boring machine, and the lower part is connected to the driving mechanism;

[0010] The driving mechanism includes a driving shaft, which is horizontally rotatably connected to the bottom of the fixed seat and driven by the first motor. The driving shaft is slidably connected to a moving block through a threaded pair. The lower end of the moving block is hinged to the upper end of the second connecting rod, and is used to drive the upper end of the second connecting rod to horizontally reciprocate linearly.

[0011] The lower end of the second connecting rod is hinged to the top of the air deflector; the lower end of the first connecting rod is hinged to the top of the air deflector and is spaced apart from the lower end of the second connecting rod, and the upper end is hinged to the fixing seat. The lower part of the fixing seat is a flat plate, which can be made of a steel plate, and the upper fixing plate is an ear plate vertically welded thereto, on which a connection hole is processed.

[0012] During operation, the first motor starts and drives the driving shaft to rotate. Since the driving shaft is rotationally connected to the fixed seat, it cannot move axially. The moving block that cooperates with it through a threaded pair moves axially relative to the driving shaft, thereby increasing the distance between the upper ends of the first connecting rod and the second connecting rod, and the angle changes, thereby driving the spray assembly to swing, thereby expanding the spraying range of the spray assembly and improving the dust reduction effect.

[0013] In a specific embodiment, the lower part of the fixed seat is a flat plate, and a fixed plate is provided on the top thereof for connecting with the tunnel boring machine. The drive shaft is rotatably connected to the fixed seat through two bearing seats arranged horizontally at intervals. Specifically, the two bearing seats are fixed at the bottom of the fixed seat along a certain horizontal interval, and bearings are arranged in the bearing seats, and the drive shaft is rotatably connected to the bearing seats through the bearings. A third ear plate is provided on one of the two bearing seats, and the upper end of the first connecting rod is hinged to the third ear plate through a pin shaft.

[0014] The driving shaft is provided with an external thread, the upper part of the moving block is provided with a threaded hole matching the size of the driving shaft, and the lower part is provided with a circular hole for hinged connection with the second connection, specifically, it can be hinged through a cylindrical pin shaft.

[0015] The top of the air deflector is provided with a first ear plate and a second ear plate arranged at intervals, the first ear plate is hinged to the first connecting rod, and the second ear plate is hinged to the second connecting rod. Specifically, the first ear plate and the second ear plate are both provided with round holes, and are respectively hinged to the first connecting rod and the second connecting rod through cylindrical pins.

[0016] In a specific embodiment, the deflector is a conical deflector with the opening facing downward, which is used to prevent the water mist from splashing upward onto the body of the tunnel boring machine or the cab.

[0017] The spray assembly also includes a rotating shaft and a second motor, the rotating shaft is rotatably arranged on the side wall of the air deflector, one end of the rotating shaft horizontally extends into the air deflector, and the other end is connected to the second motor, and a spray head is arranged on the shaft end of the rotating shaft located inside the air deflector. The spray heads are arranged in multiple pieces at intervals along the axis direction of the rotating shaft.

[0018] The second motor drives the rotating shaft to rotate, thereby driving the nozzle to rotate along the horizontal axis, thereby expanding the spraying range of the nozzle and improving the dust reduction effect.

[0019] The beneficial effects of the utility model are:

[0020] 1) An adjustment mechanism is set up to drive the upper end of the second connecting rod to move. When working, the first motor drives the driving shaft to rotate, and the moving block matched with the first motor through a threaded pair moves axially relative to the driving shaft, thereby increasing the distance between the upper ends of the first connecting rod and the second connecting rod, and the angle changes, thereby driving the spray assembly to swing, thereby expanding the spray range of the spray assembly and improving the dust reduction effect.

[0021] 2) A rotating shaft is rotatably arranged on the backflow cover and driven to rotate by a second motor, and a nozzle is fixedly connected to the rotating shaft so that the nozzle rotates with the rotating shaft, thereby expanding the dust removal range in another direction and improving the dust removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an embodiment;

[0023] Figure 2 It is a schematic diagram of the structure of the spray assembly;

[0024] 1. Adjustment mechanism; 2. Spray assembly; 11. Fixed seat; 111. Fixed plate; 12. First motor; 13. Bearing seat; 14. Third ear plate; 15. Drive shaft; 16. Moving block; 17. First connecting rod; 18. Second connecting rod; 21. Air guide cover; 211. First ear plate; 212. Second ear plate; 22. Second motor; 23. Rotating shaft; 24. Spray head. DETAILED DESCRIPTION

[0025] The following will further describe the technical means adopted to achieve the predetermined inventive purpose of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0026] See also Figure 1 and Figure 2 As shown, a dust suppression device for a mining tunneling machine includes an adjustment mechanism 1 and a spray assembly 2;

[0027] The spray assembly 2 is connected to the water tank through a pump, and includes a flow guide cover 21 and a spray head 24 rotatably arranged in the flow guide cover 21, which is used for spraying water to reduce dust;

[0028] The adjustment mechanism 1 is used to drive the spray assembly 2 to rotate, and includes a fixing seat 11, a first connecting rod 17, a second connecting rod 18 and a driving mechanism;

[0029] The upper part of the fixing seat 11 is fixed on the tunnel boring machine, and the lower part is connected to the driving mechanism;

[0030] The driving mechanism includes a driving shaft 15, which is horizontally rotatably connected to the bottom of the fixed seat 11 and driven by the first motor 12. The driving shaft 15 is slidably connected to a moving block 16 through a threaded pair. The lower end of the moving block 16 is hinged to the upper end of the second connecting rod 18, which is used to drive the upper end of the second connecting rod 18 to horizontally reciprocate.

[0031] The lower end of the second connecting rod 18 is hinged to the top of the air deflector 21; the lower end of the first connecting rod 17 is hinged to the top of the air deflector 21, and is spaced apart from the lower end of the second connecting rod 18, and the upper end is hinged to the fixing seat 11. The lower part of the fixing seat 11 is a flat plate, which can be made of a steel plate, and the upper fixing plate 111 is an ear plate vertically welded thereto, and a connecting hole is processed thereon.

[0032] During operation, the first motor 12 is started to drive the driving shaft 15 to rotate. Since the driving shaft 15 is rotationally connected to the fixed seat 11, it cannot move axially. The moving block 16 that cooperates with it through a threaded pair moves axially relative to the driving shaft 15, thereby increasing the distance between the upper ends of the first connecting rod 17 and the second connecting rod 18, and the angle changes, thereby driving the spray assembly 2 to swing, thereby expanding the spraying range of the spray assembly 2 and improving the dust reduction effect.

[0033] In a specific embodiment, the lower part of the fixed seat 11 is a flat plate, and a fixed plate 111 is provided on the top thereof for connecting with the tunnel boring machine. The drive shaft 15 is rotatably connected to the fixed seat 11 through two bearing seats 13 arranged horizontally at intervals. Specifically, the two bearing seats 13 are fixed at the bottom of the fixed seat 11 along a certain horizontal interval, and bearings are arranged in the bearing seats 13. The drive shaft 15 is rotatably connected to the bearing seats 13 through the bearings. A third ear plate 14 is provided on one of the two bearing seats 13, and the upper end of the first connecting rod 17 is hinged to the third ear plate 14 through a pin.

[0034] The driving shaft 15 is provided with an external thread, the upper part of the moving block 16 is provided with a threaded hole matching the size of the driving shaft 15, and the lower part is provided with a round hole for being hinged with the second connection, specifically, can be hinged by a cylindrical pin.

[0035] A first ear plate 211 and a second ear plate 212 are provided at intervals on the top of the air deflector 21. The first ear plate 211 is hinged to the first connecting rod 17, and the second ear plate 212 is hinged to the second connecting rod 18. Specifically, the first ear plate 211 and the second ear plate 212 are both provided with round holes, and are respectively hinged to the first connecting rod 17 and the second connecting rod 18 through cylindrical pins.

[0036] In a specific embodiment, the deflector 21 is a conical deflector 21 with an opening facing downward, which is used to prevent water mist from splashing upward onto the body of the tunnel boring machine or the cab.

[0037] The spray assembly 2 further includes a rotating shaft 23 and a second motor 22. The rotating shaft 23 is rotatably arranged on the side wall of the air deflector 21, one end of which horizontally extends into the air deflector 21, and the other end is connected to the second motor 22. A spray head 24 is arranged on the shaft end of the rotating shaft 23 located inside the air deflector 21. A plurality of the spray heads 24 are arranged at intervals along the axis direction of the rotating shaft 23.

[0038] The second motor 22 drives the rotating shaft 23 to rotate, thereby driving the nozzle 24 to rotate along the horizontal axis, thereby expanding the spraying range of the nozzle 24 and improving the dust reduction effect.

[0039] The utility model drives the upper end of the second connecting rod 18 to move by setting an adjustment mechanism 1. When working, the first motor 12 drives the driving shaft 15 to rotate, and the moving block 16 matched with the first motor 12 through a threaded pair moves axially relative to the driving shaft 15, so that the distance between the upper ends of the first connecting rod 17 and the second connecting rod 18 increases, and the angle changes, thereby driving the spray assembly 2 to swing, thereby expanding the spray range of the spray assembly 2 and improving the dust removal effect. By rotating the shaft 23 on the backflow cover and driving the second motor 22 to rotate, the nozzle 24 is fixedly connected to the shaft 23, so that the nozzle 24 rotates with the shaft 23, thereby expanding the dust removal range in the other direction and improving the dust removal effect.

[0040] The above is a preferred embodiment of the present invention, but the present invention is not limited to the above embodiments and examples. Various changes, equivalent substitutions, improvements, etc. made within the knowledge scope of those skilled in the art without departing from the concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A dust suppression device for a mining tunneling machine, characterized in that: It comprises an adjustment mechanism (1) and a spray assembly (2); The spray assembly (2) is connected to the water tank via a pump, and comprises a flow guide cover (21) and a spray head (24) rotatably arranged in the flow guide cover (21) for spraying water to reduce dust; The adjustment mechanism (1) is used to drive the spray assembly (2) to rotate, and comprises a fixed seat (11), a first connecting rod (17), a second connecting rod (18) and a driving mechanism; The upper part of the fixing seat (11) is fixed on the roadheader, and the lower part is connected to the driving mechanism; The driving mechanism comprises a driving shaft (15) which is horizontally rotatably connected to the bottom of the fixed seat (11) and driven by a first motor (12); the driving shaft (15) is slidably connected to a moving block (16) via a threaded pair; the lower end of the moving block (16) is hinged to the upper end of the second connecting rod (18) and is used to drive the upper end of the second connecting rod (18) to perform horizontal linear reciprocating motion; The lower end of the second connecting rod (18) is hinged to the top of the air deflector (21); the lower end of the first connecting rod (17) is hinged to the top of the air deflector (21) and is spaced apart from the lower end of the second connecting rod (18), and the upper end is hinged to the fixing seat (11).

2. The dust suppression device according to claim 1, characterized in that: The lower part of the fixing seat (11) is a flat plate, and the top of the fixing seat (111) is provided with a fixing plate (111) for connecting with a tunnel boring machine.

3. The dust suppression device according to claim 2, characterized in that: The driving shaft (15) is rotatably connected to the fixing seat (11) via two bearing seats (13) arranged horizontally at intervals.

4. The dust suppression device according to claim 3, characterized in that: A third ear plate (14) is provided on one of the two bearing seats (13), and the upper end of the first connecting rod (17) is hinged to the third ear plate (14) through a pin shaft.

5. According to the dust suppression device of claim 4, the driving shaft (15) is provided with an external thread, the upper part of the moving block (16) is provided with a threaded hole matching the size of the driving shaft (15), and the lower part is provided with a circular hole for being hinged with the second connection.

6. The dust suppression device according to claim 5, characterized in that: A first ear plate (211) and a second ear plate (212) are arranged at intervals on the top of the air deflector (21); the first ear plate (211) is hinged to the first connecting rod (17), and the second ear plate (212) is hinged to the second connecting rod (18).

7. The dust suppression device according to any one of claims 1 to 6, characterized in that: The air guide cover (21) is a conical air guide cover (21) with its opening facing downward.

8. The dust suppression device according to claim 7, characterized in that: The spray assembly (2) further comprises a rotating shaft (23) and a second motor (22); the rotating shaft (23) is rotatably arranged on the side wall of the air deflector (21), one end of the rotating shaft (23) horizontally extends into the interior of the air deflector (21), and the other end is connected to the second motor (22); a spray head (24) is arranged on the shaft end of the rotating shaft (23) located inside the air deflector (21).

9. The dust suppression device according to claim 8, characterized in that: A plurality of spray heads (24) are arranged at intervals along the axis direction of the rotating shaft (23).

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