Anchor rod drilling machine for coal mine tunneling

Abstract

The utility model discloses a jumbolter for coal mine tunneling, and relates to the field of jumbolters. The anchor rod drilling machine for coal mine tunneling comprises a mounting base, a first driving part is mounted at the top of the mounting base, a drill bit is arranged at the output end of the first driving part, a fixing sleeve and a connecting cover are fixed to one end of the first driving part, the connecting cover is fixed to one end of the fixing sleeve, and a flow dividing sleeve is mounted on the inner wall of the connecting cover in an embedded mode; one end of the shunting sleeve is arranged at an inclined angle; a connecting cylinder; through mutual cooperation of the connecting cover, the connecting cylinder and the piston, during operation, external air can be continuously conveyed to the connecting cover, sprayed air flow forms a protective layer, flying dust is blocked and prevented from falling to an operator, meanwhile, the sprayed air flow is divided, and the dust removal efficiency is improved. The divided air is blown to the drill bit to cool the drill bit, so that the service life of the drill bit is effectively prolonged, the probability of equipment failure is reduced, and the maintenance cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of anchor drilling machines, and in particular relates to an anchor drilling machine for coal mine excavation. Background Art

[0002] Coal is one of the most widely used energy sources in human production. Coal resources are extracted through both underground and open-pit mining. When the coal seam is far from the surface, tunnels are excavated underground, a process known as underground mining. During tunneling, the excavated tunnels must be continuously supported to ensure safety. Therefore, anchor drills are used to drill holes in the mine and support the inner walls, ensuring safety and preventing collapse.

[0003] In the prior art, when an anchor drilling rig is in use, the drill bit generates a large amount of dust when drilling and boring. The generated dust will spread in the air for a long time, which will greatly damage the health of the workers. In addition, the anchor drilling rig will also cause the temperature of the equipment itself to rise when used for a long time, which will cause damage to the circuits inside the equipment. For this reason, we propose an anchor drilling rig for coal mine excavation to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and to provide an anchor drill for coal mine excavation that can overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: an anchor drilling rig for coal mine excavation, comprising a mounting seat, a first driving part is installed on the top of the mounting seat, a drill bit is provided at the output end of the first driving part, a fixed sleeve is fixed at one end of the first driving part, a connecting cover is fixed at one end of the fixed sleeve, a diverter sleeve is embedded in the inner wall of the connecting cover, and one end of the diverter sleeve is set at an inclined angle; a connecting cylinder is arranged above the fixed sleeve; a piston is slidably connected in the connecting cylinder, and when the piston moves back and forth, the external extracted air is continuously delivered to the connecting cover.

[0006] Furthermore, a first air inlet is provided at one end of the connecting cylinder, a second air inlet is provided at the other end of the connecting cylinder, and a one-way valve is provided at the connection between the first air inlet, the second air inlet and the connecting cylinder.

[0007] Furthermore, a second gas pipe is fixed to one end of the connecting tube, and a first gas pipe is fixed to the other end of the connecting tube. One end of the first gas pipe is connected to the second gas pipe. A one-way valve is provided at the connection between the first gas pipe, the second gas pipe and the connecting tube. One end of the second gas pipe passes through the connecting cover and extends to the inside where a gas distribution plate is fixed.

[0008] Furthermore, a moving rod is fixed to one end of the piston, and a second driving part is fixed to one end of the moving rod passing through the connecting tube, and the second driving part is installed on the top surface of the first driving part.

[0009] Furthermore, one end of the diversion sleeve is located outside the connecting cover and is provided with an air jet port, and the other end of the diversion sleeve is located inside the connecting cover and is provided with a diversion port, and the diversion port is close to the gas distribution plate installed at one end of the second gas pipe.

[0010] Furthermore, a mounting block is installed on one side surface of the first driving part, and a handle is rotatably connected to the surface of the mounting block via a pin.

[0011] Furthermore, the bottom of the mounting seat is fixed to the fixing seat, and the bottom of the fixing seat is installed with a third driving part.

[0012] After adopting the above technical solution, the utility model has the following beneficial effects compared with the existing technology: the utility model cooperates with the connecting cover, connecting cylinder and piston set up in the utility model, and during operation, external air can be continuously delivered to the connecting cover, and the ejected air flow forms a protective layer to block the floating dust and prevent it from falling to the operator. At the same time, by diverting the ejected air flow, the diverted air is blown to the drill bit to cool the drill bit, effectively extending the service life of the drill bit, reducing the probability of equipment failure, and saving maintenance costs.

[0013] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In the attached figure:

[0015] Figure 1 This is a schematic diagram of the overall structure of a coal mine anchor drilling rig proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the top view of a coal mine anchor drilling rig proposed by the present invention;

[0017] Figure 3 This is a schematic side sectional view of the structure of a coal mine anchor drilling rig proposed by the utility model;

[0018] Figure 4 The utility model proposed Figure 3 Schematic diagram of the enlarged structure of area A in the middle;

[0019] Figure 5 The utility model is a schematic diagram of the partial cross-section of the three-dimensional structure of the connecting cover of the anchor drilling rig for coal mine excavation proposed by the present invention.

[0020] In the figure: 1. Mounting seat; 2. First driving part; 21. Fixing sleeve; 22. Drill bit; 31. Mounting block; 32. Handle; 4. Second driving part; 41. Moving rod; 42. Piston; 43. Connecting cylinder; 44. First air inlet; 45. Second air inlet; 46. First air pipe; 47. Second air pipe; 5. Connecting cover; 61. Diverter sleeve; 62. Diverter port; 63. Jet port; 7. Third driving part. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0022] Example 1:

[0023] Reference Figure 1-Figure 5 A rock bolt drilling rig for coal mine excavation includes a mounting base 1, a first driving part 2 is installed on the top of the mounting base 1, a drill bit 22 is provided at the output end of the first driving part 2, a fixing sleeve 21 is fixed to one end of the first driving part 2, a connecting cover 5 is fixed to one end of the fixing sleeve 21, a diverter sleeve 61 is embedded in the inner wall of the connecting cover 5, and one end of the diverter sleeve 61 is set at an inclined angle; a connecting cylinder 43 is set above the fixing sleeve 21; a piston 42 is slidably connected in the connecting cylinder 43, and when the piston 42 moves back and forth, the external extracted air is continuously delivered to the connecting cover 5.

[0024] In the prior art, when an anchor drill is drilling in a mine, a large amount of dust is generated. This dust enters the human body and causes great harm to the operator. In addition, the dust enters the gap between the drill bit 22 and the machine, or adheres to the surface of the drill bit 22, resulting in poor heat dissipation and easy failure, which greatly reduces the service life of the equipment. In this solution, when the equipment is in operation, the external air is extracted and collected into the inside of the connecting tube 43, and then continuously transported to the connecting cover 5. A part of the airflow inside the connecting cover 5 is directly discharged through the connecting cover 5 to blow air to cool the surface of the drill bit 22, while blocking the connection between the drill bit 22 and the driving component to prevent dust from entering and reduce the probability of failure. At the same time, another part of the airflow is used to spray air around one end of the connecting cover 5 to form an air curtain protective layer to block and blow away the floating dust, thereby providing good protection for the operator behind the equipment and reducing the harm caused by dust to the human body.

[0025] Example 2:

[0026] Reference Figure 1-Figure 5, a coal mine excavation anchor drilling machine, which is basically the same as Example 1, further comprising: a first air inlet 44 is provided at one end of the connecting tube 43, a second air inlet 45 is provided at the other end of the connecting tube 43, a one-way valve is provided at the connection between the first air inlet 44, the second air inlet 45 and the connecting tube 43, a second air supply pipe 47 is fixed to one end of the connecting tube 43, a first air supply pipe 46 is fixed to the other end of the connecting tube 43, one end of the first air supply pipe 46 is connected to the second air supply pipe 47, a one-way valve is provided at the connection between the first air supply pipe 46, the second air supply pipe 47 and the connecting tube 43, and one end of the second air supply pipe 47 passes through the connecting cover 5 and extends An air distribution plate is fixed to the inside, a moving rod 41 is fixed to one end of the piston 42, and one end of the moving rod 41 passes through the connecting tube 43 to fix the second driving part 4, and the second driving part 4 is installed on the top surface of the first driving part 2. One end of the diverter sleeve 61 is located outside the connecting cover 5 and is provided with a jet port 63. The other end of the diverter sleeve 61 is located inside the connecting cover 5 and is provided with a diverter port 62. The diverter port 62 is close to the air distribution plate installed at one end of the second air supply pipe 47. A mounting block 31 is installed on one side of the first driving part 2, and the surface of the mounting block 31 is rotatably connected to the handle 32 through a pin shaft. The bottom of the mounting seat 1 is fixed to the fixed seat, and the bottom of the fixed seat is provided with the third driving part 7.

[0027] The second driving part 4 is driven by a cylinder instead. When in use, the second driving part 4 is started to drive the piston 42 at the end of the moving rod 41 to slide back and forth inside the connecting cylinder 43, so that the external air is drawn into the interior of the connecting cylinder 43 through the first air inlet 44 and the second air inlet 45, and then the drawn air is delivered to the interior of the connecting cover 5 through the first air supply pipe 46 and the second air supply pipe 47. A part of the air is ejected through the air distribution plate and directly ejected through one end of the connecting cover 5, blowing air to cool the surface of the fixed sleeve 21, and at the same time, the connection between the fixed sleeve 21 and the driving component can be blocked to prevent dust from entering and causing equipment operation failure.

[0028] Since the diversion port 62 provided at one end of the diversion sleeve 61 is close to the gas distribution plate at the end of the second gas pipe 47, the gas outlet of the gas distribution plate is divided into two. Therefore, part of the airflow ejected through the gas distribution plate is diverted through the diversion port 62, and then transported through the diversion sleeve 61, and finally ejected through the jet port 63. The airflow ejected from multiple jet ports 63 forms an airflow curtain, which has a good barrier effect. In this way, the dust generated by the punching of the fixed sleeve 21 will not float to the operator, reducing the harm to the operator.

[0029] Among them, the setting of the handle 32 makes it convenient for the operator to hold the handle 32 to operate the entire equipment to perform punching operations. The setting of the third drive unit 7 makes it convenient to drive the first drive unit 2 to move up and down and adjust the punching height of the equipment. A fixed plate is provided at the bottom of the third drive unit 7, and walking wheels are installed at the bottom of the fixed plate to facilitate walking on the ground. The third drive unit 7 is driven by a hydraulic rod instead, while the first drive unit 2 is driven by a pneumatic motor instead.

[0030] The above description is merely a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention.

Claims

1. A bolt drill for coal mine excavation, comprising a mounting base (1), a first driving part (2) being mounted on the top of the mounting base (1), a drill bit (22) being provided at the output end of the first driving part (2), a fixing sleeve (21) being fixed at one end of the first driving part (2), and characterized in that: A connecting cover (5) is fixed to one end of the fixing sleeve (21), and a diverter sleeve (61) is embedded in the inner wall of the connecting cover (5), and one end of the diverter sleeve (61) is arranged at an inclined angle; A connecting tube (43) is arranged above the fixing sleeve (21); The piston (42) is slidably connected in the connecting cylinder (43). When the piston (42) moves back and forth, the externally extracted air is continuously delivered to the connecting cover (5).

2. The anchor drilling rig for coal mine excavation according to claim 1, characterized in that: A first air inlet (44) is provided at one end of the connecting cylinder (43), a second air inlet (45) is provided at the other end of the connecting cylinder (43), and a one-way valve is provided at the connection between the first air inlet (44), the second air inlet (45) and the connecting cylinder (43).

3. The anchor drilling rig for coal mine excavation according to claim 2, characterized in that: A second gas pipe (47) is fixed to one end of the connecting tube (43), and a first gas pipe (46) is fixed to the other end of the connecting tube (43). One end of the first gas pipe (46) is connected to the second gas pipe (47). A one-way valve is provided at the connection between the first gas pipe (46), the second gas pipe (47) and the connecting tube (43). One end of the second gas pipe (47) passes through the connecting cover (5) and extends to the interior where a gas distribution disk is fixed.

4. The anchor drilling rig for coal mine excavation according to claim 1, characterized in that: A moving rod (41) is fixed to one end of the piston (42), and a second driving part (4) is fixed to one end of the moving rod (41) through a connecting tube (43), and the second driving part (4) is installed on the top surface of the first driving part (2).

5. The anchor drilling rig for coal mine excavation according to claim 3, characterized in that: One end of the diverter sleeve (61) is located outside the connecting cover (5) and is provided with an air jet port (63), and the other end of the diverter sleeve (61) is located inside the connecting cover (5) and is provided with a diverter port (62). The diverter port (62) is close to the gas distribution plate installed at one end of the second gas supply pipe (47).

6. The anchor drilling rig for coal mine excavation according to claim 1, characterized in that: A mounting block (31) is installed on one side of the first driving part (2), and a handle (32) is rotatably connected to the surface of the mounting block (31) via a pin.

7. The anchor drilling rig for coal mine excavation according to claim 1, characterized in that: The bottom of the mounting seat (1) is fixed to a fixed seat, and a third driving part (7) is installed on the bottom of the fixed seat.

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