CN204476327U - With the drilling tool of core barrel - Google Patents
With the drilling tool of core barrel Download PDFInfo
- Publication number
- CN204476327U CN204476327U CN201520053077.5U CN201520053077U CN204476327U CN 204476327 U CN204476327 U CN 204476327U CN 201520053077 U CN201520053077 U CN 201520053077U CN 204476327 U CN204476327 U CN 204476327U
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- CN
- China
- Prior art keywords
- drill bit
- perforate
- fixator
- core barrel
- drilling rod
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Abstract
The utility model discloses a kind of drilling tool with core barrel, comprise drill bit, drilling rod and core barrel, the internal diameter of described drill bit is greater than the external diameter of drilling rod, described drill bit is flexibly connected with core barrel, this drilling tool also comprises a perforate fixator, a screwed hole is provided with vertically at the center of this perforate fixator, the perforate fixator of screwed hole surrounding is evenly provided with some through holes be communicated with drill bit with core barrel vertically, perforate fixator is movable to be connected between drill bit and core barrel, and one end of drilling rod is stretched in drill bit and is arranged on perforate fixator by screwed hole.The utility model is by setting up a dismountable perforate fixator at existing drill bit and core barrel, utilize it drilling rod to be carried out radial direction to fix, drilling rod is first utilized to drive drill bit and core barrel advance rock drilling by perforate fixator is stable, when drill bit entirety enters after in petrosal foramen, Tapping procedures terminates at once, unload perforate fixator again, drill bit be directly connected with core barrel and push in hole, continuing to creep into crag and desirable core.
Description
Technical field
The utility model relates to the rock drilling tapping equipment of all kinds of geology and geotechnical engineering, particularly relates to a kind of drilling tool with core barrel.
Background technology
Boring and coring is basic technology work comparatively common in Geological Engineering and geotechnical engineering, and the first step of getting in core process is rock drilling perforate.When existing drilling rod drives drill bit rock drilling to get core, because drill pipe diameter is less, and drill bit and core barrel diameter larger, weight is comparatively large, and when rig High Rotation Speed carries out perforate, large diameter drill bit and core barrel are because producing whipping by larger crag resistance, core barrel is often caused to depart from the control of drilling rod, fly out and hurt sb.'s feelings, have the drilling rod that notably directly fractures to destroy rig further, and personal injury is caused to around operating personnel.
Utility model content
The purpose of this utility model is to provide that a kind of good stability, efficiency are high, potential safety hazard is few, is convenient to the drilling tool with core barrel of core drilling.
This drilling tool with core barrel that the utility model provides, comprise drill bit, drilling rod and core barrel, the internal diameter of described drill bit is greater than the external diameter of drilling rod, described drill bit is flexibly connected with core barrel, this drilling tool also comprises a perforate fixator, a screwed hole is provided with vertically at the center of this perforate fixator, the perforate fixator of this screwed hole surrounding is evenly provided with some through holes be communicated with drill bit with core barrel vertically, described perforate fixator is movable to be connected between drill bit and core barrel, one end of described drilling rod is stretched in drill bit and is arranged on perforate fixator by screwed hole.
Unnecessary resistance is there is when punchinging for preventing the utility model, described perforate fixator is cylinder and is threaded connection between drill bit and core barrel, the external diameter of this perforate fixator is identical with the external diameter of core barrel, and the external diameter of this perforate fixator is not more than the external diameter of drill bit.
Described through hole is 3 ~ 10.
Drilling rod to be carried out radial direction by perforate fixator fixing by setting up a dismountable perforate fixator between existing drill bit and core barrel for the utility model, drilling rod is first utilized to drive drill bit and core barrel rock drilling perforate by perforate fixator is stable, when drill bit entirety enters after in petrosal foramen, Tapping procedures terminates at once, unload perforate fixator again, drill bit be directly connected with core barrel and push in hole, continuing to creep into i.e. desirable core.The utility model structure is simple, cost of manufacture is low, operating process is convenient and swift, not only greatly labour intensity can be reduced with during its perforate operation, increase work efficiency and economic benefit, drilling tool also can be kept to stablize, avoid large diameter drill bit and core barrel injury operator out of hand, destruction production equipment when High Rotation Speed.The utility model by the different caliber of design, can meet various types of boring perforate requirement, for the element task of dissimilar Geological Engineering and geotechnical engineering, has practicality comparatively widely.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structure for amplifying schematic diagram of Fig. 1 top view.
Fig. 3 is view of the present utility model.
Detailed description of the invention
As can be seen from Fig. 1 to Fig. 3, this drilling tool with core barrel of the utility model, comprise drilling rod 1, drill bit 2, perforate fixator 3 and core barrel 4, wherein the internal diameter of drill bit 2 is greater than the external diameter of drilling rod 1, drill bit 2 is flexibly connected by screw thread is dismountable with core barrel 4, perforate fixator 3 is dismountable to be movably connected between drill bit 2 and core barrel 4, a screwed hole 31 is provided with vertically at the center of perforate fixator 3, the perforate fixator 3 of this screwed hole 31 surrounding is evenly provided with some through holes 32 be communicated with drill bit 2 with core barrel 4 vertically, one end of drilling rod 1 to be stretched in drill bit 2 and is arranged on perforate fixator 3 by screwed hole 31.
As can be seen from Fig. 1 and Fig. 2, perforate fixator 3 of the present utility model is cylinder and is connected between drill bit 2 and core barrel 4 by screw thread is dismountable, the external diameter of this perforate fixator 3 is identical with the external diameter of core barrel 4, and the external diameter of this perforate fixator 3 is not more than the external diameter of drill bit 2.
In the utility model, through hole 32 can be determined according to the wall thickness of perforate fixator 3 by diameter, and number is for being 3 ~ 10.
The course of work of the present utility model is as follows:
1, during rock drilling boring, first utilize drilling rod 1 dozen of pilot hole (being used for fixing drilling rod), hole depth is about 60-100cm.
2, perforate fixator 3 is connected between drill bit 2 and core barrel 4, drilling rod 1 is arranged on the screwed hole 31 of perforate fixator 3, as shown in Figure 1.
3, drilling rod 1 is pushed in pilot hole, and make space segment length at the bottom of hole (hole bottom face is apart from path run of steel) be greater than 20cm.
4, rig is started, utilize rig dynamic rotation and promote drill bit 2 perforate, because drilling rod 1 is placed in pilot hole, can only move forward and backward to rig pushing direction, drill bit 2 and core barrel 4 by each to constraint, under rig powered, advance to crag in Tapping procedures, drill bit 2 progresses in hole, and perforate terminates.
5, unload perforate fixator 3, drill bit 2 is connected with core barrel 4, as shown in Figure 3, push in the macropore of perforate, utilize rig power to continue to advance core drilling.
Claims (3)
1. the drilling tool with core barrel, comprise drill bit, drilling rod and core barrel, the internal diameter of described drill bit is greater than the external diameter of drilling rod, described drill bit is flexibly connected with core barrel, it is characterized in that: this drilling tool also comprises a perforate fixator, a screwed hole is provided with vertically at the center of this perforate fixator, the perforate fixator of this screwed hole surrounding is evenly provided with some through holes be communicated with drill bit with core barrel vertically, described perforate fixator is movable to be connected between drill bit and core barrel, one end of described drilling rod is stretched in drill bit and is arranged on perforate fixator by screwed hole.
2. the drilling tool with core barrel according to claim 1, it is characterized in that: described perforate fixator is cylinder and is threaded connection between drill bit and core barrel, the external diameter of this perforate fixator is identical with the external diameter of core barrel, and the external diameter of this perforate fixator is not more than the external diameter of drill bit.
3. the drilling tool with core barrel according to claim 1, is characterized in that: described through hole is 3 ~ 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520053077.5U CN204476327U (en) | 2015-01-27 | 2015-01-27 | With the drilling tool of core barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520053077.5U CN204476327U (en) | 2015-01-27 | 2015-01-27 | With the drilling tool of core barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204476327U true CN204476327U (en) | 2015-07-15 |
Family
ID=53632129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520053077.5U Active CN204476327U (en) | 2015-01-27 | 2015-01-27 | With the drilling tool of core barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204476327U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593297A (en) * | 2016-12-15 | 2017-04-26 | 中国矿业大学 | Straight hole drilling method for drilling machine |
-
2015
- 2015-01-27 CN CN201520053077.5U patent/CN204476327U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593297A (en) * | 2016-12-15 | 2017-04-26 | 中国矿业大学 | Straight hole drilling method for drilling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |