Drill bit capable of rapidly replacing cutting tool bit

Abstract

The utility model relates to the technical field of drill bits, and discloses a drill bit capable of quickly replacing a cutting tool bit, which comprises a drill bit body and a tool bit body, a replacing mechanism is arranged outside the drill bit body, a limiting mechanism is arranged outside the replacing mechanism, and the replacing mechanism comprises a connecting seat and a connecting groove. A connecting groove is formed in the inner side of the connecting base, a rotating groove is formed in the inner side of the connecting groove, a positioning assembly is arranged at one end of the rotating groove, a sealing block is connected to the outer portion of the connecting base in a threaded mode, the positioning assembly comprises a positioning shell, and a positioning block is connected to the inner side of the positioning shell in a clamped mode. Then the tool bit body is rotated, the positioning block rotates into the positioning shell to position the connecting seat, so that the connecting seat is clamped, the tool bit body and the drill bit body are prevented from being connected, loosened and separated, then the sealing block is rotationally connected with the connecting seat, the connecting groove is sealed, the connecting seat is further pressed, and the drill bit is convenient to disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of drill bits, in particular to a drill bit for quickly replacing a cutting bit. Background Art

[0002] The drill bit is the main tool for breaking rocks during the drilling process. The quality of a wellbore and the length of time it takes are not only related to the characteristics of the rock being drilled and the performance of the drill bit itself, but also to the degree of mutual matching between the drill bit and the formation. Therefore, the reasonable selection of the drill bit plays an important role in increasing the drilling speed and reducing the overall drilling cost.

[0003] At present, the drill bit will cause serious damage to the cutting bit on the drill bit due to long-term work, and the drill bit and the cutting bit in the prior art are mostly integrated. When the bit is damaged, the entire drill bit needs to be replaced, which is very inconvenient. Utility Model Content

[0004] The utility model aims to provide a drill bit with a quick-replacement cutting bit, so as to solve the problem that the drill bit proposed in the above-mentioned background technology may cause serious damage to the cutting bit on the drill bit due to long-term work, while the drill bit and the cutting bit in the prior art are mostly integrated, and when the cutting bit is damaged, the entire drill bit needs to be replaced, which is very inconvenient and has a high cost of use.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a drill bit for quickly replacing a cutting bit, comprising a drill bit body and a bit body, a replacement mechanism is arranged outside the drill bit body, and a limiting mechanism is arranged outside the replacement mechanism;

[0006] The replacement mechanism comprises a connecting seat and a connecting groove, a rotating groove is provided on the inner side of the connecting groove, a positioning assembly is provided at one end of the rotating groove, and a sealing block is connected to the outer thread of the connecting seat.

[0007] Preferably, the positioning assembly comprises a positioning shell, and a positioning block is clamped on the inner side of the positioning shell.

[0008] Preferably, the positioning shell is fixedly connected to the top of the rotating groove, and two positioning blocks are provided, and both of the two positioning blocks are fixedly connected to the outside of the connecting seat.

[0009] Preferably, the connecting seat is fixedly connected to one end of the cutter head body, and the connecting groove is opened on the inner side of the drill head body.

[0010] Preferably, the limiting mechanism comprises a fixing hole, and a fixing column is threadedly connected to the inner side of the fixing hole.

[0011] Preferably, there are two fixing holes, and both of the two fixing holes are arranged outside the sealing block and the connecting seat.

[0012] Preferably, the fixing column is arranged in a T-shape, and a gasket is installed at one end of the fixing column.

[0013] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0014] First, the utility model inserts the connecting seat into the connecting groove to make the cutter head body and the drill head body preliminarily connected, and then rotates the cutter head body to make the two positioning blocks outside the connecting seat rotate, until the two positioning blocks rotate into the positioning shell at the top of the rotating groove, so that the positioning blocks are engaged with the positioning shell, and the connecting seat is positioned, thereby locking the connecting seat, thereby preventing the cutter head body and the drill head body from loosening and detaching, and then the sealing block is rotatably connected to the connecting seat to seal the connecting groove to prevent debris from entering the connecting groove, and further press the connecting seat, thereby completing the connection between the cutter head body and the drill head body. When disassembly is required, it is only necessary to repeat the above operation in reverse, thereby achieving the effect of facilitating the disassembly of the drill head body and the cutter head body.

[0015] Secondly, after the sealing block is rotated to press the connecting seat, the utility model allows the fixing column to be rotated through the opened fixing hole, so that the fixing column connects the sealing block and the connecting seat, thereby limiting the connecting seat to prevent the connecting seat from rotating and deviating, and then the stability of the fixing column is improved by the provided gasket, so that the connection between the connecting seat and the cutter head body is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall stereogram of the utility model;

[0017] Figure 2 This is a three-dimensional diagram of the positioning component of the utility model;

[0018] Figure 3 This is a cross-sectional view of the utility model;

[0019] Figure 4 It is an enlarged view of point A of the present utility model.

[0020] Among them: 1. drill body; 2. cutter head body; 3. replacement mechanism; 4. limiting mechanism; 31. connecting seat; 32. connecting groove; 33. rotating groove; 34. positioning assembly; 35. sealing block; 37. positioning shell; 38. positioning block; 41. fixing hole; 42. fixing column; 43. gasket. DETAILED DESCRIPTION

[0021] 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.

[0022] The utility model provides the following technical solutions:

[0023] Embodiment 1

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 A drill bit for quickly replacing a cutting bit comprises a drill bit body 1 and a bit body 2, a replacement mechanism 3 is arranged outside the drill bit body 1, and a limiting mechanism 4 is arranged outside the replacement mechanism 3;

[0025] The replacement mechanism 3 includes a connection seat 31 and a connection groove 32 . A rotation groove 33 is provided inside the connection groove 32 . A positioning assembly 34 is provided at one end of the rotation groove 33 . A sealing block 35 is threadedly connected to the outside of the connection seat 31 .

[0026] The positioning assembly 34 includes a positioning shell 37 , and a positioning block 38 is clamped on the inner side of the positioning shell 37 .

[0027] The positioning shell 37 is fixedly connected to the top of the rotating groove 33 . Two positioning blocks 38 are provided. Both positioning blocks 38 are fixedly connected to the outside of the connecting seat 31 .

[0028] The connecting seat 31 is fixedly connected to one end of the drill bit body 2 , and the connecting groove 32 is provided on the inner side of the drill bit body 1 .

[0029] Through the above technical scheme, at this time, by inserting the connecting seat 31 into the interior of the connecting groove 32, the cutter head body 2 and the drill bit body 1 are initially connected, and then the cutter head body 2 is rotated to make the two positioning blocks 38 outside the connecting seat 31 also rotate until the two positioning blocks 38 rotate into the positioning shell 37 at the top of the rotating groove 33, so that the positioning blocks 38 are engaged with the positioning shell 37 to position the connecting seat 31, thereby locking the connecting seat 31, and thus preventing the cutter head body 2 and the drill bit body 1 from loosening and detaching. Then the sealing block 35 is rotatably connected to the connecting seat 31 to seal the connecting groove 32 to prevent debris from entering the connecting groove 32, and further press the connecting seat 31, thereby completing the connection between the cutter head body 2 and the drill bit body 1. When disassembly is required, only the above operation needs to be repeated in reverse, thereby achieving the effect of facilitating the disassembly of the drill bit body 1 and the cutter head body 2.

[0030] Embodiment 2

[0031] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 On the basis of the first embodiment, it is further obtained that the limiting mechanism 4 includes a fixing hole 41 , and a fixing column 42 is threadedly connected to the inner side of the fixing hole 41 .

[0032] There are two fixing holes 41 , and both fixing holes 41 are formed outside the sealing block 35 and the connecting seat 31 .

[0033] The fixing column 42 is configured in a T-shape, and a gasket 43 is installed at one end of the fixing column 42 .

[0034] Through the above technical solution, after the sealing block 35 is rotated to press the connecting seat 31, the fixing column 42 can be rotated through the opened fixing hole 41, so that the fixing column 42 connects the sealing block 35 and the connecting seat 31, and then limits the connecting seat 31 to prevent the connecting seat 31 from rotating and offset, and then the stability of the fixing column 42 is improved by the set gasket 43, so that the connection between the connecting seat 31 and the cutter head body 2 is more stably connected.

[0035] When in use, the connection seat 31 is inserted into the connection groove 32 to initially connect the cutter head body 2 and the drill head body 1, and then the cutter head body 2 is rotated so that the two positioning blocks 38 outside the connection seat 31 also rotate until the two positioning blocks 38 rotate into the positioning shell 37 at the top of the rotation groove 33, so that the positioning blocks 38 are engaged with the positioning shell 37 to position the connection seat 31, thereby locking the connection seat 31, thereby preventing the cutter head body 2 and the drill head body 1 from loosening and detaching, and then the sealing block 35 is rotatably connected to the connection seat 31 to seal the connection groove 32 to prevent debris from entering the connection groove 32, and further press the connection seat 31, thereby completing the connection between the cutter head body 2 and the drill head body 1. When disassembly is required, just repeat the above operation in reverse, thereby achieving the effect of facilitating the disassembly of the drill head body 1 and the cutter head body 2;

[0036] After the sealing block 35 is rotated to press the connecting seat 31, the fixing column 42 can be rotated through the opened fixing hole 41, so that the fixing column 42 connects the sealing block 35 and the connecting seat 31, and then limits the connecting seat 31 to prevent the connecting seat 31 from rotating and deviating, and then the stability of the fixing column 42 is improved by the set gasket 43, so that the connection between the connecting seat 31 and the cutter head body 2 is more stably connected.

[0037] Although the 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 thereof, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A drill bit for quickly replacing a cutting bit, comprising a drill bit body (1) and a bit body (2), characterized in that: A replacement mechanism (3) is arranged outside the drill body (1), and a limit mechanism (4) is arranged outside the replacement mechanism (3); The replacement mechanism (3) comprises a connecting seat (31) and a connecting groove (32); a rotating groove (33) is provided on the inner side of the connecting groove (32); a positioning assembly (34) is provided at one end of the rotating groove (33); and a sealing block (35) is connected to the outer thread of the connecting seat (31).

2. A drill bit for quickly changing cutting bits according to claim 1, characterized in that: The positioning assembly (34) comprises a positioning shell (37), and a positioning block (38) is clamped on the inner side of the positioning shell (37).

3. A drill bit for quickly changing cutting bits according to claim 2, characterized in that: The positioning shell (37) is fixedly connected to the top of the rotating groove (33), and two positioning blocks (38) are provided. Both positioning blocks (38) are fixedly connected to the outside of the connecting seat (31).

4. A drill bit for quickly changing cutting bits according to claim 1, characterized in that: The connecting seat (31) is fixedly connected to one end of the drill head body (2), and the connecting groove (32) is arranged on the inner side of the drill head body (1).

5. A drill bit for quickly changing cutting bits according to claim 1, characterized in that: The limiting mechanism (4) comprises a fixing hole (41), and a fixing column (42) is threadedly connected to the inner side of the fixing hole (41).

6. A drill bit for quickly changing cutting bits according to claim 5, characterized in that: Two fixing holes (41) are provided, and both fixing holes (41) are provided outside the sealing block (35) and the connecting seat (31).

7. A drill bit for quickly changing cutting bits according to claim 5, characterized in that: The fixing column (42) is arranged in a T-shape, and a gasket (43) is installed at one end of the fixing column (42).

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