CN214091717U - Pneumatic drill bit structure - Google Patents
Pneumatic drill bit structure Download PDFInfo
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- CN214091717U CN214091717U CN202022611913.0U CN202022611913U CN214091717U CN 214091717 U CN214091717 U CN 214091717U CN 202022611913 U CN202022611913 U CN 202022611913U CN 214091717 U CN214091717 U CN 214091717U
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- drill bit
- drill
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- adapter sleeve
- bit
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Abstract
An embodiment of the utility model provides a pneumatic drill bit structure, include: drill bit subassembly and first adapter sleeve, the one end of first adapter sleeve with drill bit subassembly fixed connection, the other end of first adapter sleeve is connected with the second adapter sleeve that the wind bored, just the hole size of first adapter sleeve with the external diameter size phase-match of second adapter sleeve. The embodiment of the utility model provides a pneumatic drill bit structure has effectively solved current pneumatic drill and can not bore the defect of aperture, has richened the drill bit size of pneumatic drill. And the electric drill can be used at any time at the place with the wind pipe joint during underground construction, is convenient and quick, and effectively solves the safety risk caused by drilling by the electric drill. Meanwhile, the on-site construction also improves the working efficiency, reduces the power consumption and further reduces the production cost.
Description
Technical Field
The utility model relates to a pneumatic drill technical field especially relates to a pneumatic drill bit structure.
Background
Electric drills are drilling machines using electricity as power and are various in types. The main specifications of the electric drill are 4, 6, 8, 10, 13, 16, 19, 23, 32, 38, 49mm and the like according to the diameter of the drill bit, and specific values thereof refer to: at a tensile strength of 390N/mm2The maximum diameter of the drill bit for drilling the hole in the steel material. The maximum drilling diameter of the drilling hole for materials such as nonferrous metals, plastics and the like can be 30-50% larger than the original specification. The working principle of the electric drill is that a motor rotor of an electromagnetic rotary type or electromagnetic reciprocating type small-capacity motor does magnetic field cutting work-doing operation, and the operation device is driven by a transmission mechanism to drive a gear to increase the power of a drill bit, so that the drill bit scrapes the surface of an object and better penetrates the object.
The pneumatic drill is a punching tool taking compressed air as power, and is mainly used for punching on construction sites, concrete, rocks, mines and the like. The coal mine usually uses ZQS series pneumatic hand-held drilling machine to drill, the drilling machine cooperates with the twist drill rod to drill, the diameter of the drill hole is larger, and most of the drill holes are 35-45mm in diameter. Because it does not have the aperture drilling rod, so in the colliery work progress, can't adopt the pneumatic drill to bore the aperture, need use the electric drill to drill the hole, and adopt the electric drill to drill the hole, the electric drill battery needs to charge in advance and be equipped with in place, or connect the electricity in the pit, comparatively troublesome.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a pneumatic drill bit structure for solve among the prior art pneumatic drill and can't bore the defect of aperture.
An embodiment of the utility model provides a pneumatic drill bit structure, include: drill bit subassembly and first adapter sleeve, the one end of first adapter sleeve with drill bit subassembly fixed connection, the other end of first adapter sleeve can be connected with the second adapter sleeve that the wind bored, just the hole size of first adapter sleeve with the external diameter size phase-match of second adapter sleeve.
According to the utility model discloses a pneumatic drill bit structure, the hole processing of first adapter sleeve has the screw thread, the screw thread with screw thread phase-match on the second adapter sleeve outer wall.
According to the utility model discloses a pneumatic drill bit structure of embodiment, the drill bit subassembly includes drill bit, auto-lock drill chuck and adjustable ring, the drill bit is installed in the auto-lock drill chuck, the auto-lock drill chuck is installed the inside of adjustable ring, the adjustable ring can for the auto-lock drill chuck rotates, so that auto-lock drill chuck locking or loosening the drill bit.
According to the utility model discloses a pneumatic drill bit structure of embodiment, first adapter sleeve fixed connection be in the lower part of adjustable ring.
According to the utility model discloses a pneumatic drill bit structure of embodiment, auto-lock drill chuck is including boring cover and clamping part, the one end of clamping part is passed the boring cover with the adjustable ring is connected, the other end of clamping part stretches out the boring cover is used for the centre gripping the drill bit.
According to the utility model discloses a pneumatic drill bit structure of embodiment, it is porose to set up on the drill chuck cover.
According to the utility model discloses pneumatic drill bit structure of an embodiment, the clamping part is including being used for the centre gripping the chuck that the three equidistant setting of drill bit.
According to the utility model discloses a pneumatic drill bit structure, every the surface of chuck is the arc surface with the tapering, the relative internal surface of arc surface is the plane, the plane is used for the centre gripping the drill bit.
According to the utility model discloses a pneumatic drill bit structure of embodiment, the up end of adjustable ring is formed with the tooth that sets up in succession, is used for adjusting the locking of auto-lock drill chuck or loosen the drill bit.
The embodiment of the utility model provides a pneumatic drill bit structure has effectively solved current pneumatic drill and can not bore the defect of aperture, has richened the drill bit size of pneumatic drill. And the electric drill can be used at any time at the place with the wind pipe joint during underground construction, is convenient and quick, and effectively solves the safety risk caused by drilling by the electric drill. Meanwhile, the on-site construction also improves the working efficiency, reduces the power consumption and further reduces the production cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a pneumatic drill bit structure according to an embodiment of the present invention;
fig. 2 is a top view of a pneumatic drill bit structure provided by an embodiment of the present invention;
fig. 3 is a schematic structural view of the first coupling sleeve shown in fig. 1.
Reference numerals:
1: a drill bit; 2: a self-locking drill chuck; 3: an adjusting ring; 4: a first connecting sleeve; 21: drilling a jacket; 22: and (4) a clamping head.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The structure of the pneumatic drill bit according to the embodiment of the present invention is described below with reference to fig. 1 to 3.
In mines, wind resources are abundant, while power resources are limited. In the coal mine construction process, because the pneumatic drill can not drill a small hole with the diameter less than 35mm, when the small hole needs to be drilled, an operator needs to go to a power supply to electrically drill the small hole, or needs to drill the small hole on the well by adopting the electric drill, or charges in advance to prepare for work, and the operation modes are not implemented anytime and anywhere, so that the work efficiency is seriously influenced.
In order to solve the problem, the embodiment of the utility model provides an air drill bit structure through designing first connecting sleeve 4 and drill bit assembly, can be with the electric drill bit of various specifications use to the air drill in. As shown in fig. 1, in an embodiment of the present invention, the pneumatic drill bit structure includes: a drill bit assembly and a first coupling sleeve 4. The drill bit assembly is welded with one end of the first connecting sleeve 4, and the other end of the first connecting sleeve 4 is connected with the second connecting sleeve of the pneumatic drill. Particularly, the drill bit that the diameter is less can be installed to the drill bit subassembly, in the colliery work progress, when needs bore the aperture, can install the drill bit subassembly of installing the less diameter drill bit on the pneumatic drill, and then can anytime and anywhere bore the aperture in the colliery.
Specifically, taking the ZQS series pneumatic hand-held drill as an example, the drill bit assembly can fix a drill bit with a diameter of less than 35mm, and the lower part of the drill bit assembly is welded with the first connecting sleeve 4. The second connecting sleeve of the ZQS series pneumatic hand-held drilling machine is a sleeve with two large end diameters and a small middle diameter, when the second connecting sleeve is connected with the first connecting sleeve 4, a section of the sleeve with a large diameter at the upper part of the second connecting sleeve needs to be cut off, and then the first connecting sleeve 4 is connected with a section with a small diameter of the second connecting sleeve, so that a drill bit component is installed on the ZQS series pneumatic hand-held drilling machine through the first connecting sleeve 4.
Further, in an embodiment of the present invention, the first connection sleeve 4 may be welded to the second connection sleeve, or may be screwed.
It can be understood that: the utility model discloses an in the embodiment, first adapter sleeve 4 and second adapter sleeve phase-match make first adapter sleeve 4 according to the shape and the size of second adapter sleeve. If the second connecting sleeve is of a straight cylindrical shape, the first connecting sleeve 4 should accordingly also be of a straight cylindrical shape. If the second connecting sleeve is of a structure with steps at the lower part, correspondingly, the inner hole of the first connecting piece 4 should also be of a structure with steps, so that various drill bits can be installed on different pneumatic drills through different first connecting sleeves 4, the requirements in actual work can be met, and the applicability of the pneumatic drill can be enhanced.
The embodiment of the utility model provides a pneumatic drill bit structure has effectively solved current pneumatic drill and can not bore the defect of aperture, has richened the drill bit size of pneumatic drill. The drill bit with the small diameter can be installed on different pneumatic drills by adopting different first connecting sleeves, so that the applicability of the pneumatic drill is enhanced. And the electric drill can be used at any time at the place with the wind pipe joint during underground construction, is convenient and quick, and effectively solves the safety risk caused by drilling by the electric drill. Meanwhile, the on-site construction also improves the working efficiency, reduces the power consumption and further reduces the production cost.
In an embodiment of the present invention, since the outer wall of the second connection sleeve of the pneumatic drill is processed with a thread, the inner wall of the first connection sleeve 4 is also processed with a matched thread. As shown in fig. 3, the first connecting sleeve 4 is a straight cylindrical member, and when being installed, the first connecting sleeve 4 is screwed with the second connecting sleeve.
As shown in fig. 1, in one embodiment of the present invention, a drill bit assembly includes a drill bit 1, a self-locking drill chuck 2, and an adjustment ring 3. Specifically, the drill bit 1 is installed in a self-locking drill chuck 2, the self-locking drill chuck 2 is installed inside an adjusting ring 3, and the self-locking drill chuck 2 can be locked or loosened by rotating the adjusting ring 3. A first connecting sleeve 4 is mounted on the lower part of the adjusting ring 3.
Specifically, the drill bit 1 is matched with the self-locking drill chuck 2, and the self-locking drill chuck 2 with different clamping ranges can be designed according to the diameter of the drill bit 1. In an embodiment of the present invention, the self-locking drill chuck 2 comprises a drill chuck sleeve 21 and a clamping portion, one end of the clamping portion passes through the drill chuck sleeve 21 and is connected with the adjusting ring 3, and the other end of the clamping portion extends out of the drill chuck sleeve 21 to clamp the drill bit 1.
Further, as shown in fig. 2, in an embodiment of the present invention, the clamping portion includes three chucks 22 arranged at equal intervals, the end surface of one end of each chuck 22 adjacent to the drill chuck sleeve 21 is an arc surface, and the arc surface has a certain taper along the length direction of the chuck 22, and the other end surface of the chuck 22, that is, one end corresponding to the arc surface, has a planar end surface shape for clamping the drill bit 1.
Further, in an embodiment of the present invention, the adjusting ring 3 has a plurality of continuous teeth formed on the upper end surface thereof, and the drill holder sleeve 21 has a hole formed therein. In the actual use process, the selected drill bit 1 is inserted into the chuck 22, the plug of the adjusting tool is inserted into the hole of the drill clamping sleeve 21, the teeth of the adjusting tool are meshed with the teeth of the adjusting ring 3, the adjusting tool is rotated to drive the adjusting ring 3 to rotate, and then the chuck 22 is driven to lock the drill bit 1.
The embodiment of the utility model provides a pneumatic drill bit structure through design auto-lock drill chuck, can install the drill bit of different specifications on pneumatic drill, in the colliery work progress, can directly utilize pneumatic drill to bore various apertures, has strengthened pneumatic drill's suitability, has also improved operating personnel's work efficiency simultaneously.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. A pneumatic drill bit construction, comprising: drill bit subassembly and first adapter sleeve, the one end of first adapter sleeve with drill bit subassembly fixed connection, the other end of first adapter sleeve can be connected with the second adapter sleeve that the wind bored, just the hole size of first adapter sleeve with the external diameter size phase-match of second adapter sleeve.
2. The air drill bit structure of claim 1, wherein the inner bore of the first connection sleeve is threaded, and the threads match the threads on the outer wall of the second connection sleeve.
3. The air-drill bit structure of claim 1, wherein the bit assembly comprises a bit mounted within a self-locking drill chuck mounted within an interior of an adjustment ring that is rotatable relative to the self-locking drill chuck to lock or unlock the bit.
4. The air drill bit structure of claim 3, wherein the first connection sleeve is fixedly connected to a lower portion of the adjustment ring.
5. The air drill bit structure of claim 3, wherein the self-locking drill chuck comprises a drill chuck sleeve and a clamping portion, one end of the clamping portion penetrates through the drill chuck sleeve to be connected with the adjusting ring, and the other end of the clamping portion extends out of the drill chuck sleeve to be used for clamping the drill bit.
6. The air drill bit structure of claim 5, wherein the drill chuck sleeve is perforated.
7. The air drill bit structure of claim 5, wherein the gripping portion comprises three equally spaced collets for gripping the bit.
8. The air drill bit structure of claim 7, wherein the outer surface of each of the collets is a tapered circular arc surface, and the opposite inner surface of the circular arc surface is a flat surface for gripping the bit.
9. The structure of the air drill bit as claimed in claim 3, wherein the adjusting ring has upper end surfaces formed with continuously arranged teeth for adjusting the locking or unlocking of the bit by the self-locking drill chuck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022611913.0U CN214091717U (en) | 2020-11-12 | 2020-11-12 | Pneumatic drill bit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022611913.0U CN214091717U (en) | 2020-11-12 | 2020-11-12 | Pneumatic drill bit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214091717U true CN214091717U (en) | 2021-08-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022611913.0U Active CN214091717U (en) | 2020-11-12 | 2020-11-12 | Pneumatic drill bit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214091717U (en) |
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2020
- 2020-11-12 CN CN202022611913.0U patent/CN214091717U/en active Active
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