CN216110549U - Novel high wind pressure single eccentric drilling tool - Google Patents
Novel high wind pressure single eccentric drilling tool Download PDFInfo
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- CN216110549U CN216110549U CN202122669697.XU CN202122669697U CN216110549U CN 216110549 U CN216110549 U CN 216110549U CN 202122669697 U CN202122669697 U CN 202122669697U CN 216110549 U CN216110549 U CN 216110549U
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- bottom drill
- drilling tool
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Abstract
The utility model discloses a novel high-wind-pressure single-eccentric drilling tool, which comprises a bottom drill bit, wherein the middle part of one end of the bottom drill bit is in taper connection with the middle part of one end of a guide device through a limiting pin, the other end of the bottom drill bit is connected with an eccentric ring in a clamping manner, and one end of the guide device is sequentially connected with a penetrating pin and a rising pin in an inserting manner.
Description
Technical Field
The utility model relates to the technical field of drilling tools, in particular to a novel high-air-pressure single-eccentric drilling tool.
Background
The existing eccentric drilling tool is mainly of a two-piece structure, the two-piece drilling tool mainly comprises a stepped shaft-shaped guide device and an eccentric drill bit arranged on the guide device through a connecting pin, the connecting pin bears the whole torque during the drilling process, the connecting pin is arranged in a pin hole of the eccentric drill bit and a cylindrical surface part of the guide device, and a gap exists between the three parts, so that the drilling tool is easy to wear and even break during the drilling process, the drill bit drops, and the drilling tool fails.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a novel high-wind-pressure single-eccentric drilling tool to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a novel high wind pressure list off-centre drilling tool, includes the bottom drill bit, the middle part of bottom drill bit one end is passed through the spacer pin and is connected with the middle part tapering of leading positive ware one end, the other end block of bottom drill bit is connected with eccentric ring, the one end of leading positive ware alternates and is connected with the round pin of wearing, the one end block that leads positive ware and keep away from the round pin is connected with the round pin that rises.
As a preferred technical scheme of the utility model, the middle part of one end of the pilot device and the middle part of one end of the bottom drill bit are both provided with mounting holes, and the mounting holes are matched with the limiting pins.
As a preferred technical scheme of the utility model, the other end of the bottom drill bit is provided with a clamping groove, and the clamping groove is matched with the eccentric ring.
As a preferred technical scheme of the utility model, pin holes are formed in one end of the guide device and one end of the bottom drill bit, and the penetrating pin and the expanding pin are matched with the pin holes.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model mainly comprises a guide device, an eccentric ring and a bottom drill bit, wherein the guide device is matched with the bottom drill bit by taper, a limit pin is used in assembly to prevent torsion rotation, a penetrating pin is used to fix impact looseness, the disassembly and the assembly are convenient, the transmission torque is uniform, the service life of a drilling tool is greatly prolonged, the eccentric ring is assembled on the bottom drill bit, and the purpose of reaming is achieved by utilizing eccentric limitation, so that the construction efficiency is improved.
Drawings
FIG. 1 is an exploded view of the overall structure of the present invention;
fig. 2 is a schematic structural diagram of the whole of the present invention.
In the figure: 1. a pilot; 2. a bottom drill bit; 3. an eccentric ring; 4. a spacing pin; 5. pin penetration; 6. and (4) expanding the pin.
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 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.
Referring to fig. 1-2, the utility model provides a novel high-wind-pressure single-eccentric drilling tool, which comprises a bottom drill bit 2, wherein the middle part of one end of the bottom drill bit 2 is in taper connection with the middle part of one end of a guide device 1 through a limit pin 4, the other end of the bottom drill bit 2 is connected with an eccentric ring 3 in a clamping manner, one end of the guide device 1 is connected with a through pin 5 in an inserting manner, and one end of the guide device 1, which is far away from the through pin 5, is connected with an expansion pin 6 in a clamping manner.
Preferably, the mounting hole has all been seted up with the middle part of 2 one ends of bottom drill bit in the middle part of leading positive ware 1 one end, and mounting hole and spacer pin 4 phase-matchs, through spacer pin 4 with bottom drill bit 2 with lead positive ware 1 taper connection, prevent that torsion is rotatory.
Preferably, the other end of the bottom drill bit 2 is provided with a clamping groove, the clamping groove is matched with the eccentric ring 3, and the eccentric ring 3 is clamped and installed in the clamping groove at the other end of the bottom drill bit 2.
Preferentially, the pinhole has all been seted up to the one end of leading positive ware 1 and the one end of bottom drill bit 2, and wears round pin 5 and rises round pin 6 all with the pinhole phase-match, uses to wear round pin 5 to fix to strike not hard up, rises round pin 6 block and connects and keep away from the one end of wearing round pin 5 at leading positive ware 1, convenient to detach and equipment.
During the specific use, be connected bottom drill bit 2 and leading 1 tapering of just ware through spacer pin 4, it is rotatory to prevent torsion, 3 blocks of eccentric ring are installed in the draw-in groove of the 2 other ends of bottom drill bit, wear 5 interlude of round pin and connect the one end at leading just ware 1, 6 blocks of round pin that rise are connected and are kept away from the one end of wearing round pin 5 at leading just ware 1, convenient to detach, the equipment, and the transmission moment of torsion is even, the life of drilling tool has been strengthened greatly, 3 assemblies of eccentric ring are on bottom drill bit 2, utilize eccentric restriction to reach reaming purpose, thereby construction efficiency has been improved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.
Claims (4)
1. The utility model provides a novel high wind pressure list off-center drilling tool, includes bottom drill bit (2), its characterized in that: the middle part of bottom drill bit (2) one end is passed through spacer pin (4) and is connected with the middle part tapering of leading positive ware (1) one end, the other end block of bottom drill bit (2) is connected with eccentric ring (3), the one end of leading positive ware (1) alternates and is connected with and wears round pin (5), the one end block that leads positive ware (1) to keep away from and wear round pin (5) is connected with and rises round pin (6).
2. The novel high wind pressure single eccentric drilling tool according to claim 1, characterized in that: the middle part of one end of the pilot device (1) and the middle part of one end of the bottom drill bit (2) are both provided with mounting holes, and the mounting holes are matched with the limiting pins (4).
3. The novel high wind pressure single eccentric drilling tool according to claim 1, characterized in that: the other end of the bottom drill bit (2) is provided with a clamping groove, and the clamping groove is matched with the eccentric ring (3).
4. The novel high wind pressure single eccentric drilling tool according to claim 1, characterized in that: pinhole has all been seted up to the one end of leading positive ware (1) and the one end of bottom drill bit (2), and wears round pin (5) and rises round pin (6) and all match with the pinhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122669697.XU CN216110549U (en) | 2021-11-03 | 2021-11-03 | Novel high wind pressure single eccentric drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122669697.XU CN216110549U (en) | 2021-11-03 | 2021-11-03 | Novel high wind pressure single eccentric drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216110549U true CN216110549U (en) | 2022-03-22 |
Family
ID=80712578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122669697.XU Active CN216110549U (en) | 2021-11-03 | 2021-11-03 | Novel high wind pressure single eccentric drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216110549U (en) |
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2021
- 2021-11-03 CN CN202122669697.XU patent/CN216110549U/en active Active
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