CN215292353U - Multipurpose hole expanding drill bit - Google Patents
Multipurpose hole expanding drill bit Download PDFInfo
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- CN215292353U CN215292353U CN202023111898.XU CN202023111898U CN215292353U CN 215292353 U CN215292353 U CN 215292353U CN 202023111898 U CN202023111898 U CN 202023111898U CN 215292353 U CN215292353 U CN 215292353U
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- reaming
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Abstract
The invention discloses a multipurpose hole expanding drill bit which comprises a hole expanding drill bit main body, wherein a drill bit inner cavity is formed in the hole expanding drill bit main body, a guide head is fixedly connected to the top surface of the drill bit inner cavity, a cutting tooth mounting step is formed in the inner wall of the drill bit inner cavity and the side surface of the hole expanding drill bit main body in a penetrating mode, a cutting tooth part is connected to the inner wall of the cutting tooth mounting step in a sliding mode, a threaded pipe is fixedly connected to the side surface, close to the drill bit inner cavity, of the cutting tooth part, a threaded rod is connected to the inner wall of the threaded pipe in a threaded mode, and a rotating rod is fixedly connected to the end portion of the threaded rod. In use, the effect of conveniently adjusting the diameter of the reaming bit is realized, the poor condition that the diameter of the reaming bit can only be changed by replacing the bit is avoided, the construction cost is effectively saved, the purpose of conveniently meeting the requirements of different reaming diameters in the construction process is achieved, the working efficiency is effectively improved, the use is more convenient, and the practicability is better.
Description
Technical Field
The invention relates to the technical field of roadway support construction equipment, in particular to a multipurpose reaming bit.
Background
Because the constant-resistance anchor cable has the characteristics of energy absorption and large deformation, the constant-resistance anchor cable is more and more used in mine roadways, tunnels and slope supports. However, before the constant-resistance anchor cable is installed, firstly, a pneumatic anchor rod drilling machine or a crawler type anchor rod drilling vehicle is needed to drill an anchor cable hole, then, hole expansion with a certain depth is carried out to install the constant-resistance device, and the anchor cables with different specifications need to use the constant-resistance devices with different specifications, so that a multipurpose hole expansion drill bit capable of changing hole expansion diameter is needed to be used during hole expansion construction.
The reamer bit that has now on the market generally all is fixed diameter, is difficult to adjust reamer bit diameter, if need change reaming diameter at the job site, can only change the reamer bit of different diameters, and it is very troublesome to operate, has also increased construction cost simultaneously, is difficult to satisfy the demand to different reaming diameters in the work progress, has reduced the efficiency of construction, and it is very inconvenient to use.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a multipurpose broaching bit, which solves the problems that the diameter of the broaching bit is difficult to adjust by the conventional broaching bit, and the requirements for different broaching diameters in the construction process are difficult to meet.
In order to achieve the purpose, the invention adopts the following technical scheme:
a multipurpose reaming bit comprises a reaming bit body, wherein a bit inner cavity is formed in the reaming bit body, a guide head is fixedly connected to the top surface of the bit inner cavity, a cutting tooth installation step is formed in the side surface of the bit inner cavity and the side surface of the reaming bit body in a penetrating manner, a cutting tooth part is slidably connected to the inner wall of the cutting tooth installation step, a threaded pipe is fixedly connected to the side surface of the cutting tooth part close to the bit inner cavity, a threaded rod is connected to the inner wall of the threaded pipe in a threaded manner, a rotating rod is fixedly connected to the end part of the threaded rod, a rotating hole is formed in the side surface of the bit inner cavity and the side surface of the reaming bit body in a penetrating manner, the surface of the rotating rod is rotatably connected with the inner wall of the rotating hole, a handheld knob is fixedly connected to the surface of the handheld knob, a first guide hole is formed in the top surface and the bottom surface of the reaming bit body in a penetrating manner, and a second flow guide hole is transversely formed in the left side surface and the right side surface of the guide head in a through manner.
Preferably, reamer bit main part bottom surface fixedly connected with connecting block, connecting block side sliding connection has the base, connecting block bottom surface middle part fixedly connected with spring, spring bottom surface fixedly connected with supporting shoe.
Preferably, the equal fixedly connected with buffer block in connecting block bottom surface left side and bottom surface right side, and the buffer block is the rubber material, the base is box form structure, and base top surface middle part is the through state.
Preferably, the number of the cutting pick mounting steps is three, and an included angle between every two cutting pick mounting steps is one hundred twenty degrees.
Preferably, three screwed pipes, threaded rods, rotating holes and handheld knobs are located on different horizontal planes.
Preferably, the anti-slip strip is made of rubber materials.
A multi-purpose expanding bit, its operation method is;
s1, rotating the hand knob to drive the rotating rod to rotate and then drive the threaded rod to rotate, pushing the threaded pipe to move horizontally under the action of the thread of the threaded pipe to drive the cutting tooth parts to extend out of the cutting tooth mounting step, and adjusting the extension lengths of the three cutting tooth parts to adjust the diameter of the reaming hole;
s2, when the reaming bit main part vibrates, the connecting block can be driven to descend and compress the spring, elastic deformation absorption vibration is generated through the spring, the connecting block continues to descend, the buffer block is driven to touch the bottom of the inner wall of the base, the elastic deformation absorption vibration is generated on the buffer block, the effect of vibration generated during reaming operation is convenient to reduce is realized in use, vibration is smaller when the reaming bit is used, and meanwhile, excessive vibration is avoided to influence reaming precision.
Compared with the prior art, the invention has the beneficial effects that:
1. this multi-purpose reaming drill bit, through rotatory handheld knob, thereby it rotates to drive the dwang, it rotates to drive the threaded rod again, push threaded pipe horizontal direction under the effect of threaded pipe screw thread and remove, thereby it stretches out from pick installation step to drive cutting tooth portion, through adjusting three cutting tooth portion extension length, can adjust the reaming diameter, in use has realized being convenient for carry out the effect adjusted to the reaming drill bit diameter, the bad condition that can only change the reaming diameter through changing the drill bit has been avoided, construction cost has effectively been practiced thrift, reached and be convenient for satisfy the purpose to different reaming diameter demands in the work progress, work efficiency has effectively been promoted, it is more convenient to use, the practicality is better.
2. When reamer bit main part vibrates, can drive connecting block decline and compression spring, take place elastic deformation through the spring and absorb vibration, the connecting block continues to descend, drive the buffer block and touch and press base inner wall bottom for the buffer block takes place elastic deformation and absorbs vibration, in use has realized being convenient for to reduce the effect that produces vibration when reaming operation, and is more comfortable when making use this drill bit, has avoided too vibration simultaneously and has influenced reaming precision.
Drawings
Fig. 1 is a schematic structural view of a reamer head body according to the present invention;
FIG. 2 is a sectional plan view of the structure of the present invention;
FIG. 3 is a schematic view of the cleat of the present invention;
FIG. 4 is a front cross-sectional view of the guide head structure of the present invention;
FIG. 5 is a front cross-sectional view of a portion of the present invention.
In the figure: the hole expanding drill comprises a hole expanding drill body 1, a drill internal cavity 2, a guide head 3, a cutting pick mounting step 4, a cutting pick part 5, a threaded pipe 6, a threaded rod 7, a rotating rod 8, a rotating hole 9, a handheld knob 10, an anti-slip strip 11, a first flow guide hole 12, a second flow guide hole 13, a connecting block 14, a base 15, a spring 16, a supporting block 17 and a buffer block 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows: referring to fig. 1-4, a multipurpose reaming bit comprises a reaming bit body 1, a bit inner cavity 2 is arranged inside the reaming bit body 1, a guide head 3 is fixedly connected to the top surface of the bit inner cavity 2, cutting tooth mounting steps 4 are arranged on the inner wall of the bit inner cavity 2 and the side surface of the reaming bit body 1 in a penetrating manner, the number of the cutting tooth mounting steps 4 is three, an included angle between every two cutting tooth mounting steps 4 is one hundred twenty degrees, a cutting tooth part 5 is slidably connected to the inner wall of each cutting tooth mounting step 4, a threaded pipe 6 is fixedly connected to the side surface of the cutting tooth part close to the bit inner cavity 2, a threaded rod 7 is in threaded connection with the inner wall of the threaded pipe 6, a rotating rod 8 is fixedly connected to the end part of the threaded rod 7, a rotary hole 9 is arranged on the inner wall of the bit inner cavity 2 and the side surface of the reaming bit body 1 in a penetrating manner, and the surface of the rotating rod 8 is rotatably connected with the inner wall of the rotary hole 9, the end part of the rotating rod 8 is fixedly connected with a handheld knob 10, three threaded pipes 6, a threaded rod 7, the rotating rod 8, a rotating hole 9 and the handheld knob 10 are positioned on different horizontal planes, and can ensure the normal extension and retraction of the tooth cutting part 5 by being arranged on different horizontal planes, the surface of the handheld knob 10 is fixedly connected with an anti-slip strip 11, the anti-slip strip 11 is made of rubber materials, so that the hand of a user is not easy to slip when the handheld knob 10 is rotated, the use is more convenient, the top surface and the bottom surface of the reaming drill bit body 1 are provided with a first diversion hole 12 in a through way, the left side surface and the right side surface of the guiding head 3 are provided with a second diversion hole 13 in a transverse through way, the heat dissipation efficiency in the reaming process can be improved by arranging the first diversion hole 12 and the second diversion hole 13, the damage caused by overheating is avoided, the rotating handheld knob 10 is rotated, thereby driving the rotating rod 8 to rotate, and then driving the threaded rod 7 to rotate, push 6 horizontal directions of screwed pipe and remove under the screwed pipe 6 screw thread effect, thereby it stretches out from pick installation step 4 to drive cutting tooth portion 5, through adjusting three cutting tooth portion 5 extension length, can adjust the reaming diameter, in use has realized being convenient for carry out the effect of adjusting to the reaming bit diameter, the bad condition that can only change the reaming diameter through changing the drill bit has been avoided, construction cost has effectively been practiced thrift, reached and be convenient for satisfy the purpose to different reaming diameter demands in the work progress, work efficiency has effectively been promoted, it is more convenient to use, the practicality is better.
Example two: referring to fig. 1-5, a multipurpose reaming bit comprises a reaming bit body 1, a bit inner cavity 2 is arranged inside the reaming bit body 1, a guide head 3 is fixedly connected to the top surface of the bit inner cavity 2, cutting tooth mounting steps 4 are arranged on the inner wall of the bit inner cavity 2 and the side surface of the reaming bit body 1 in a penetrating manner, the number of the cutting tooth mounting steps 4 is three, an included angle between every two cutting tooth mounting steps 4 is one hundred twenty degrees, a cutting tooth part 5 is slidably connected to the inner wall of each cutting tooth mounting step 4, a threaded pipe 6 is fixedly connected to the side surface of the cutting tooth part close to the bit inner cavity 2, a threaded rod 7 is in threaded connection with the inner wall of the threaded pipe 6, a rotating rod 8 is fixedly connected to the end part of the threaded rod 7, a rotary hole 9 is arranged on the inner wall of the bit inner cavity 2 and the side surface of the reaming bit body 1 in a penetrating manner, and the surface of the rotating rod 8 is rotatably connected with the inner wall of the rotary hole 9, the end part of the rotating rod 8 is fixedly connected with a handheld knob 10, the three threaded pipes 6, the threaded rod 7, the rotating rod 8, the rotating hole 9 and the handheld knob 10 are positioned on different horizontal planes, normal extension and retraction of the tooth cutting part 5 can be ensured by arranging the handheld knob 10 on different horizontal planes, the surface of the handheld knob 10 is fixedly connected with an anti-slip strip 11, the anti-slip strip 11 is made of rubber materials, so that a hand of a user is not easy to slip when the handheld knob 10 is rotated, the use is more convenient, the top surface and the bottom surface of the reaming bit body 1 are provided with a first flow guide hole 12 in a through manner, the left side surface and the right side surface of the guide head 3 are provided with a second flow guide hole 13 in a transverse through manner, through the arrangement of the first flow guide hole 12 and the second flow guide hole 13, the high-pressure water in the drilling rod can improve the heat dissipation efficiency in the reaming process, the damage caused by overheating is avoided, meanwhile, the dust in the reaming process can be reduced, through the rotation of the handheld knob 10, thereby drive dwang 8 and rotate, it rotates to drive threaded rod 7 again, 6 horizontal direction removal of pushing thread pipe under the screw thread effect of screwed pipe 6, thereby it stretches out from pick installation step 4 to drive cutting tooth portion 5, through adjusting three cutting tooth portion 5 extension length, can adjust the reaming diameter, in use has realized being convenient for to the effect that the reaming bit diameter was adjusted, the bad condition that can only change the reaming diameter through changing the drill bit has been avoided, construction cost has effectively been practiced thrift, reached and be convenient for satisfy the purpose to different reaming diameter demands in the work progress, work efficiency has effectively been promoted, it is more convenient to use, the practicality is better.
The bottom surface of the reaming bit body 1 is fixedly connected with a connecting block 14, the side surface of the connecting block 14 is slidably connected with a base 15, the middle part of the bottom surface of the connecting block 14 is fixedly connected with a spring 16, the bottom surface of the spring 16 is fixedly connected with a supporting block 17, the left side and the right side of the bottom surface of the connecting block 14 are fixedly connected with a buffer block 18, the buffer block 18 is made of rubber, the base 15 is of a box-shaped structure, the middle part of the top surface of the base 15 is in a through state, when the reaming bit body 1 vibrates, the connecting block 14 is driven to descend and compress the spring 16, the spring 16 generates elastic deformation to absorb vibration, the connecting block 14 continues to descend, the buffer block 18 is driven to touch and press the bottom of the inner wall of the base 15, so that the buffer block 18 generates elastic deformation to absorb vibration, in use, the effect of vibration generated during reaming operation is conveniently reduced, so that the drill bit is more comfortable to use, and meanwhile, the influence on reaming precision due to excessive vibration is avoided.
When in use: through rotatory handheld knob 10 to drive dwang 8 and changeing the inside rotation in hole 9, drive threaded rod 7 again and rotate, push the 6 horizontal direction of screwed pipe and remove under the screwed pipe 6 screw thread effect, thereby it is flexible in pick installation step 4 to drive cutting teeth portion 5, through adjusting three cutting teeth portion 5 extension length, can adjust the reaming diameter.
A multi-purpose expanding bit, its operation method is;
s1, rotating the hand knob 10 to drive the rotating rod 8 to rotate and then drive the threaded rod 7 to rotate, pushing the threaded pipe 6 to move horizontally under the action of the threads of the threaded pipe 6 to drive the tooth cutting parts 5 to extend out of the cutting tooth mounting step 4, and adjusting the extension lengths of the three tooth cutting parts 5 to adjust the reaming diameter;
s2, when reamer bit main part 1 vibrates, can drive connecting block 14 decline and compression spring 16, take place elastic deformation through spring 16 and absorb vibration, connecting block 14 continues to descend, drive buffer block 18 and touch and press base 15 inner wall bottom, make buffer block 18 take place elastic deformation and absorb vibration, in use has realized the effect that produces vibration when being convenient for reduce reaming operation, make more comfortable when using this drill bit, avoided excessive vibration and influenced reaming precision simultaneously.
In conclusion, the multipurpose reaming bit drives the rotating rod 8 to rotate and then drives the threaded rod 7 to rotate by rotating the hand knob 10, the threaded pipe 6 is driven to move in the horizontal direction under the action of the thread of the threaded pipe 6, so that the tooth cutting part 5 is driven to extend out of the cutting tooth mounting step 4, the reaming diameter can be adjusted by adjusting the extension length of the three tooth cutting parts 5, the effect of conveniently adjusting the diameter of the reaming bit is realized in use, the bad condition that the reaming diameter can only be changed by changing the bit is avoided, the construction cost is effectively saved, the purpose of meeting the requirements of different reaming diameters in the construction process is achieved, the working efficiency is effectively improved, the multipurpose reaming bit is more convenient to use and has better practicability, when the reaming bit body 1 vibrates, the connecting block 14 is driven to descend and compress the spring 16, and the spring 16 is elastically deformed to absorb the vibration, connecting block 14 continues to descend, drive buffer block 18 and touch and press 15 inner wall bottoms of base, make buffer block 18 take place elastic deformation and absorb vibration, in use has realized the effect that produces the vibration when being convenient for reduce reaming operation, make more comfortable when using this drill bit, avoided too vibration simultaneously and influenced the reaming precision, it is difficult to adjust reamer bit diameter to the reamer bit diameter to have solved current reamer bit, be difficult to satisfy the problem to the demand of different reaming diameters in the work progress.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a multi-purpose reaming drill bit, includes reaming drill bit main part (1), its characterized in that, the inside drill bit inner chamber (2) of seting up of reaming drill bit main part (1), the inside cavity of drill bit (2) top surface fixedly connected with direction head (3), the inside cavity of drill bit (2) inner wall and reaming drill bit main part (1) side link up and have seted up pick installation step (4), pick installation step (4) inner wall sliding connection has cutting tooth portion (5), the side fixedly connected with screwed pipe (6) that cutting tooth portion is close to the inside cavity of drill bit (2), the threaded pipe (6) inner wall threaded connection has threaded rod (7), threaded rod (7) tip fixedly connected with dwang (8), the inside cavity of drill bit (2) inner wall and reaming drill bit main part (1) side link up and have seted up commentaries on classics hole (9), and dwang (8) surface and commentaries on classics hole (9) inner wall rotate and are connected, dwang (8) tip fixedly connected with handheld knob (10), handheld knob (10) fixed surface even has antislip strip (11), reamer bit main part (1) top surface and bottom surface link up and have seted up first water conservancy diversion hole (12), second water conservancy diversion hole (13) have transversely been link up to direction head (3) left surface and right flank.
2. The multipurpose reamer bit of claim 1, wherein a connecting block (14) is fixedly connected to the bottom surface of the reamer bit body (1), a base (15) is slidably connected to the side surface of the connecting block (14), a spring (16) is fixedly connected to the middle of the bottom surface of the connecting block (14), and a supporting block (17) is fixedly connected to the bottom surface of the spring (16).
3. The multipurpose hole expanding drill bit as claimed in claim 2, wherein the left side and the right side of the bottom surface of the connecting block (14) are fixedly connected with a buffer block (18), the buffer block (18) is made of rubber, the base (15) is of a box-shaped structure, and the middle part of the top surface of the base (15) is in a through state.
4. A multi-purpose reamer bit according to claim 1, wherein the number of pick mounting steps (4) is three and the included angle between every two pick mounting steps (4) is one hundred twenty degrees.
5. A multi-purpose reamer bit according to claim 4, wherein the three threaded tubes (6), threaded rod (7), turning rod (8), turning hole (9) and hand knob (10) are located at different levels.
6. A multi-purpose reamer bit according to claim 1, wherein the anti-slip strips (11) are made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023111898.XU CN215292353U (en) | 2020-12-22 | 2020-12-22 | Multipurpose hole expanding drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023111898.XU CN215292353U (en) | 2020-12-22 | 2020-12-22 | Multipurpose hole expanding drill bit |
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| Publication Number | Publication Date |
|---|---|
| CN215292353U true CN215292353U (en) | 2021-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023111898.XU Active CN215292353U (en) | 2020-12-22 | 2020-12-22 | Multipurpose hole expanding drill bit |
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| Country | Link |
|---|---|
| CN (1) | CN215292353U (en) |
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- 2020-12-22 CN CN202023111898.XU patent/CN215292353U/en active Active
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