Drill bit of drilling tool capable of rapidly drilling rock

Abstract

The utility model relates to the technical field between drill rods and drill bits or between drill rods, and discloses a drill bit of a quick rock drilling tool, which comprises a drill rod, the upper side of the drill rod is fixedly connected with a fixed block, the front side of the fixed block is provided with a movable block, and a rotating shaft is rotatably connected between the fixed block and the movable block. The fixed block and the movable block are rotationally connected through a rotating shaft, a drill bit is arranged on the upper side of the fixed block, a limiting mechanism is arranged on the fixed block, the drill bit and the movable block, and the limiting mechanism comprises a connecting column, a limiting clamping block, a connecting column groove, a limiting clamping block groove, a first connecting plate, a second connecting plate, two connecting holes, two connecting bolts and two nuts. According to the technical scheme, the drill tool and the drill bit do not need to be connected in a threaded connection mode, so that the drill tool is not affected when the thread slipping phenomenon occurs, the drill tool does not need to be replaced, and the replacement cost of the drill tool is reduced when the thread slipping phenomenon occurs.

Description

Technical Field

[0001] The utility model relates to the technical field between a drill rod and a drill bit, or between drill rods, and in particular to a drill bit for a fast rock drilling tool. Background Art

[0002] Drilling tools refer to the working tools used for drilling holes in rocks. The drill bit is one of the drill tools. The drill bit is made of high-quality imported steel, and the cutter head is made of special alloy through special processing and welding technology. The drill bit is widely used in various mining projects and stone projects.

[0003] The drill bit is the main rock drilling part in the drill tool, so the drill bit is more prone to wear than other parts. After the drill bit is worn, it needs to be replaced. At present, the connection between the drill bit and the drill tool is mostly through a threaded connection. Under the condition of a relatively harsh working environment, the connecting thread may rust, which may lead to thread slippage. Thread slippage will not only make disassembly more troublesome, but also the thread of the drill tool cannot be used after thread slippage. Therefore, both the drill bit and the drill tool need to be replaced, which increases the replacement cost. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a drill bit for a fast rock drilling drill, which has the function of enabling the drill bit and the drill tool to be connected without the need for a threaded connection, so that when thread slippage occurs, the drill tool will not be affected, and the drill tool does not need to be replaced, thereby reducing the cost of replacing the drill tool when thread slippage occurs.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drill head for a fast rock drilling tool, comprising a drill rod, a fixed block is fixedly connected to the upper side of the drill rod, and a movable block is arranged on the front side of the fixed block;

[0008] A rotating shaft is rotatably connected between the fixed block and the movable block, and the fixed block and the movable block are rotatably connected via the rotating shaft;

[0009] A rubber pad is arranged between the fixed block and the movable block, and a drill head is arranged on the upper side of the fixed block; a limiting mechanism is arranged on the fixed block, the drill head and the movable block, and the drill head is connected with the fixed block and the movable block through the limiting mechanism;

[0010] The limiting mechanism comprises a connecting column, a limiting block, a connecting column slot, a limiting block slot, a first connecting plate, a second connecting plate, two connecting holes, two connecting bolts and two nuts.

[0011] Preferably, the connecting column is fixedly connected to the lower side of the drill bit, and the limiting block is fixedly connected to the lower end of the connecting column;

[0012] The connecting column grooves are arranged on the opposite surfaces of the fixed block and the movable block, and the connecting column grooves are matched with the connecting columns.

[0013] Preferably, the limit block groove is also provided on the opposite surfaces of the fixed block and the movable block, and the connecting column groove is connected to the inside of the limit block groove;

[0014] The limiting block groove is matched with the limiting block, and the first connecting plate is fixedly connected to the left side of the fixing block.

[0015] Preferably, the second connecting plate is fixedly connected to the left side of the movable block, the two connecting holes are both opened on the front side of the second connecting plate, and the rear walls of the two connecting holes extend into the interior of the first connecting plate.

[0016] Preferably, the rear walls of the two connecting holes both pass through the rear side of the first connecting plate, and the two connecting holes are arranged up and down;

[0017] The two connecting bolts are respectively arranged inside the two connecting holes, and the outer surfaces of the two connecting bolts are sleeved with first gaskets.

[0018] Preferably, the two first washers are both arranged on the front side of the second connecting plate, and the two nuts are respectively threadedly sleeved on the two connecting bolts;

[0019] The outer surfaces of the two connecting bolts are sleeved with second gaskets, and the two second gaskets are arranged on the rear side of the first connecting plate.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the utility model provides a drill bit for a fast rock drilling tool, which has the following beneficial effects:

[0022] (1) The drill bit of the fast rock drilling tool can be removed by rotating the nut, and then the second gasket, the connecting bolt and the first gasket can be removed, and then the other nut can be removed, and then the movable block can be pulled to open it, and then the drill bit, the connecting column and the limit block can be removed and replaced by moving it to the front side, and then the installation can be completed according to the above method. The limit block groove limits the limit block to make the drill bit rotate with the rotation of the drill rod. In this connection, only the connecting bolt and the nut will be stripped when the environment is harsh, and it will not affect the fixed block and the movable block. Therefore, only the connecting bolt and the nut need to be replaced, thereby reducing the replacement cost of the drill tool when the thread is stripped.

[0023] (2) The drill bit of the fast rock drilling tool can make the connecting bolt and the nut more tightly connected to the first connecting plate and the second connecting plate by sleeve-arranging the first gasket and the second gasket on the outer surface of the connecting bolt, thereby avoiding the vibration of the drill bit during operation due to the loose connection between the first connecting plate and the second connecting plate, thereby avoiding the connection bolt and the nut being easily loosened due to the vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of a drill head for a fast rock drilling tool according to the utility model;

[0025] Figure 2 This is a schematic diagram of the drill bit connection structure of the utility model;

[0026] Figure 3 This is a schematic diagram of the internal connection structure of the fixed block and the movable block of the utility model;

[0027] Figure 4 This is a schematic diagram of the connection bolt connection structure of the utility model.

[0028] In the figure: 1. drill rod; 2. fixed block; 3. drill bit; 4. movable block; 5. rotating shaft; 6. connecting column; 7. limiting block; 8. connecting column slot; 9. limiting block slot; 10. first connecting plate; 11. second connecting plate; 12. connecting hole; 13. connecting bolt; 14. first gasket; 15. nut; 16. second gasket. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figures 1 to 4The utility model provides a new technical solution: a drill head for fast rock drilling, comprising a drill rod 1, a fixed block 2 is fixedly connected to the upper side of the drill rod 1, a movable block 4 is arranged on the front side of the fixed block 2, a rotating shaft 5 is rotatably connected between the fixed block 2 and the movable block 4, the fixed block 2 and the movable block 4 are rotatably connected through the rotating shaft 5, a rubber pad is arranged between the fixed block 2 and the movable block 4, a drill head 3 is arranged on the upper side of the fixed block 2, a limiting mechanism is arranged on the fixed block 2, the drill head 3 and the movable block 4, the drill head 3 is connected with the fixed block 2 and the movable block 4 through the limiting mechanism, and the limiting mechanism comprises a connecting column 6, a limiting clamping block 7, a connecting column slot 8, a limiting clamping block slot 9, a first connecting plate 10, a second connecting plate 11, two connecting holes 12, two connecting bolts 13 and two nuts 15.

[0031] Furthermore, the connecting column 6 is fixedly connected to the lower side of the drill bit 3, the limiting block 7 is fixedly connected to the lower end of the connecting column 6, the connecting column groove 8 is opened on the opposite surface of the fixed block 2 and the movable block 4, the connecting column groove 8 is adapted to the connecting column 6, the limiting block groove 9 is also opened on the opposite surface of the fixed block 2 and the movable block 4, the connecting column groove 8 is connected to the inside of the limiting block groove 9, the limiting block groove 9 is adapted to the limiting block 7, the first connecting plate 10 is fixedly connected to the left side of the fixed block 2, the second connecting plate 11 is fixedly connected to the left side of the movable block 4, the two connecting holes 12 are opened on the front side of the second connecting plate 11, and the two The rear walls of the connecting holes 12 extend into the interior of the first connecting plate 10, and the rear walls of the two connecting holes 12 pass through the rear side of the first connecting plate 10. The two connecting holes 12 are arranged up and down, and the two connecting bolts 13 are respectively arranged in the interior of the two connecting holes 12. The outer surfaces of the two connecting bolts 13 are sleeved with first gaskets 14, and the two first gaskets 14 are both arranged on the front side of the second connecting plate 11. The two nuts 15 are respectively threaded on the two connecting bolts 13, and the outer surfaces of the two connecting bolts 13 are sleeved with second gaskets 16, and the two second gaskets 16 are both arranged on the rear side of the first connecting plate 10.

[0032] Furthermore, when the drill bit 3 needs to be replaced, the staff rotates the nut 15 to remove it, and then the second gasket 16, the connecting bolt 13 and the first gasket 14 can be removed, and then the other nut 15 is also removed, and then the movable block 4 is pulled to open it. The movable block 4 will rotate and open with the rotating shaft 5 as the center, and then a part of the connecting column groove 8 and the limiting block groove 9 on the movable block 4 will also move, and then the limiting block groove 9 will not be able to engage and limit the limiting block 7, and then move to the front side to remove the drill bit 3, the connecting column 6 and the limiting block 7 for replacement, and then the above method can be used to complete the replacement. The limit block groove 9 limits the limit block 7 and enables the drill bit 3 to rotate with the rotation of the drill rod 1. In harsh environments, only the connecting bolts 13 and the nuts 15 will be stripped, and the fixed block 2 and the movable block 4 will not be affected. Therefore, only the connecting bolts 13 and the nuts 15 need to be replaced. In this way, the drill tool and the drill bit 3 do not need to be connected by a threaded connection, so that when stripping occurs, the drill tool will not be affected, and there is no need to replace the drill tool, thereby reducing the replacement cost of the drill tool when stripping occurs.

[0033] Working principle: when it is necessary to replace the drill bit 3, the staff rotates the nut 15 to remove it, and then the second gasket 16, the connecting bolt 13 and the first gasket 14 can be removed, and then the other nut 15 is also removed, and then the movable block 4 is pulled to open it, and the movable block 4 will rotate and open with the rotating shaft 5 as the center, and then a part of the connecting column groove 8 and the limiting block groove 9 on the movable block 4 will also move, and then the limiting block groove 9 will not be able to engage and limit the limiting block 7, and then move to the front side to remove the drill bit 3, the connecting column 6 and the limiting block 7 for replacement, and then the installation can be completed according to the above method, and the limiting block groove 9 engages the limiting block 7 for limiting engagement so that the drill bit 3 can rotate and work with the rotation of the drill rod 1. In this connection, only the connecting bolt 13 and the nut 15 will be stripped when the environment is harsh, and it will not affect the fixed block 2 and the movable block 4, and then only the connecting bolt 13 and the nut 15 need to be replaced.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drill bit for a fast rock drilling tool, comprising a drill rod (1), a fixed block (2) being fixedly connected to the upper side of the drill rod (1), and a movable block (4) being arranged at the front side of the fixed block (2); A rotating shaft (5) is rotatably connected between the fixed block (2) and the movable block (4); the fixed block (2) and the movable block (4) are rotatably connected via the rotating shaft (5); A rubber pad is arranged between the fixed block (2) and the movable block (4), and a drill bit (3) is arranged on the upper side of the fixed block (2); the characteristics are: The fixed block (2), the drill bit (3) and the movable block (4) are provided with a limiting mechanism, and the drill bit (3) is connected to the fixed block (2) and the movable block (4) through the limiting mechanism; The limiting mechanism comprises a connecting column (6), a limiting block (7), a connecting column slot (8), a limiting block slot (9), a first connecting plate (10), a second connecting plate (11), two connecting holes (12), two connecting bolts (13) and two nuts (15).

2. A drill bit for a fast rock drilling tool according to claim 1, characterized in that: The connecting column (6) is fixedly connected to the lower side of the drill bit (3), and the limiting block (7) is fixedly connected to the lower end of the connecting column (6); The connecting column groove (8) is arranged on the opposite surfaces of the fixed block (2) and the movable block (4), and the connecting column groove (8) is matched with the connecting column (6).

3. A drill bit for a fast rock drilling tool according to claim 1, characterized in that: The position-limiting block groove (9) is also provided on the opposite surfaces of the fixed block (2) and the movable block (4), and the connecting column groove (8) is connected to the interior of the position-limiting block groove (9); The limiting block groove (9) is matched with the limiting block (7), and the first connecting plate (10) is fixedly connected to the left side of the fixing block (2).

4. A drill bit for a fast rock drilling tool according to claim 1, characterized in that: The second connecting plate (11) is fixedly connected to the left side of the movable block (4), the two connecting holes (12) are both opened on the front side of the second connecting plate (11), and the rear walls of the two connecting holes (12) extend into the interior of the first connecting plate (10).

5. A drill bit for a fast rock drilling tool according to claim 4, characterized in that: The rear walls of the two connection holes (12) both penetrate the rear side of the first connection plate (10), and the two connection holes (12) are arranged up and down; The two connecting bolts (13) are respectively arranged inside the two connecting holes (12), and the outer surfaces of the two connecting bolts (13) are both sleeved with first gaskets (14).

6. A drill bit for a fast rock drilling tool according to claim 5, characterized in that: The two first washers (14) are both arranged on the front side of the second connecting plate (11), and the two nuts (15) are respectively threadedly sleeved on the two connecting bolts (13); The outer surfaces of the two connecting bolts (13) are sleeved with second washers (16), and the two second washers (16) are arranged on the rear side of the first connecting plate (10).

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