CN103573186B - Drill bit of rotary drilling rig - Google Patents
Drill bit of rotary drilling rig Download PDFInfo
- Publication number
- CN103573186B CN103573186B CN201310469234.6A CN201310469234A CN103573186B CN 103573186 B CN103573186 B CN 103573186B CN 201310469234 A CN201310469234 A CN 201310469234A CN 103573186 B CN103573186 B CN 103573186B
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- drill bit
- drilling
- connecting plate
- lower plate
- drill
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Abstract
The invention discloses a drill bit of a rotary drilling rig. The drill bit comprises a drill bit main body, wherein the drill bit main body is in a split type, and comprises a drill bit upper part and a barrel, the bottom end face of the drill bit upper part is welded with a lower plate, the upper end of the drill bit upper part is provided with a drilling rod connecting device, the upper end face of the barrel is welded with an upper plate, the drill bit upper part and the barrel are fixedly connected together by the lower plate and the upper plate, the lower plate and the upper plate are connected together to form a connecting plate group, and the connecting plate group is of a tool jamming protecting structure. The drill bit is in the split type and is divided into the drill bit upper part and the barrel which are connected together by the connecting plate group, the fixing force of the connecting plate group is smaller than the tensile strength of a drilling rod, when tool jamming occurs, the drilling rod is lifted by external force which is far greater than the lifting force of a winch, the drill bit can be separated from the connecting plate group part, the separating part is precise, the breakage of the middle part of the drilling rod is not caused, and personnel do not need to descend for operation.
Description
Technical field
The present invention relates to a kind of drilling bit of rotary-digging drilling rig, belong to drilling machine components technical field.
Background technology
Rotary drilling rig, in drilling process, can run into lock of tool drilling often, and current drill bit does not have bit freezing protection mechanism yet,
In process accident, typically there are two methods: 1. descend diver to slip in mud to pull out the connecting link pin of drilling rod and drill bit, dangerous
Larger, personal safety cannot be guaranteed, and when bore diameter is less, diver arrives bottom hole under being difficult to；2. carried using external force
Pull out, because fracture position does not know and it is possible to fracture in the middle part of drilling rod can be caused, loss is larger.Both the above processing method,
Process time is long, and economic loss is huge, deals with improperly and also can cause other accident, such as large area landslide, overturning, causes tighter
The consequence of weight.
Content of the invention
The problem existing for above-mentioned prior art, the present invention provides a kind of drilling bit of rotary-digging drilling rig, when lock of tool drilling
Afterwards, drill bit top and cylinder convenient separation, separated part accurately, operates without personnel's dive.
To achieve these goals, the technical solution used in the present invention is: a kind of drilling bit of rotary-digging drilling rig, including drill bit master
Body, drill main body is split type, and drill main body includes drill bit top and cylinder, and drill bit top bottom face is welded with lower plate, drill bit
There is drill rod connecting device top upper end, and the upper surface of cylinder is welded with upper plate, and drill bit top and cylinder are solid by lower plate and upper plate
Surely link together, lower plate and upper plate link together and form connecting plate group, and the fixing force of connecting plate group is less than the tension of drilling rod
Power.
Further, the mode that lower plate is fixedly connected with upper plate is bolt connection or mode connects for screw.
Further, bolt or screw are to be uniformly and symmetrically distributed.
Compared with prior art: drill bit of the present invention is split type, and dividing has drill bit top and cylinder two parts, this two parts
Linked together by connecting plate group, connecting plate group is bit freezing protection structure, so when bit freezing occurs, by much larger than elevator
The external force lifting drilling rod of lifting force, drill bit can separate from connecting plate group position, and separated part accurately, does not result in the middle part of drilling rod
The fracture at position, without personnel's dive operation.
Brief description
Fig. 1 is present configuration schematic diagram.
In figure: 1, drill bit top, 2, cylinder, 3, lower plate, 4, upper plate, 10, drill main body.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, this drilling bit of rotary-digging drilling rig, including drill main body 10, drill main body 10 is split type, drill main body 10
Including drill bit top 1 and cylinder 2, drill bit top 1 bottom face is welded with lower plate 3, and there is drill rod connecting device drill bit top 1 upper end,
The upper surface of cylinder 2 is welded with upper plate 4, and drill bit top 1 and cylinder 2 are fixed together by lower plate 3 and upper plate 4, lower plate 3
Link together with upper plate 4 and form connecting plate group, the fixing force of connecting plate group is less than the stretching resistance of drilling rod.
In normal work, the connecting plate group of the moment of torsion on drill bit top 1 passes through lower plate 3 and upper plate 4 links together composition
Pass to cylinder 2, the fixing force of connecting plate group is more than 1.5 times of rig master winch maximum hoist capacity, less than drilling rod stretching resistance, protect
Demonstrate,prove being smoothed out of normal handling brill；
Drilling rod is connected with drill bit top 1 by drill rod connecting device, when running into bit freezing, using in the auxiliary equipments such as crane
Carry drilling rod, when pulling force is more than the fixing force of connecting plate group upwards, drill bit top 1 and cylinder 2 can connect in both junctions
Plate group position separates, and thus smoothly can propose drilling rod, drilling rod will not be caused damage.
Lower plate 3 and the connection of upper plate 4 and the fixing force of easily controllable connecting plate group for convenience, lower plate 3 and upper plate 4 are fixing
The mode connecting is bolt connection or mode connects for screw.
In order to ensure that the stability of present invention work, bolt or screw are to be uniformly and symmetrically distributed.
Claims (3)
1. a kind of drilling bit of rotary-digging drilling rig, including drill main body (10) it is characterised in that drill main body (10) is split type, drill bit
Main body (10) includes drill bit top (1) and cylinder (2), and drill bit top (1) bottom face is welded with lower plate (3), on drill bit top (1)
There is drill rod connecting device at end, and the upper surface of cylinder (2) is welded with upper plate (4), and drill bit top (1) and cylinder (2) pass through lower plate (3)
It is fixed together with upper plate (4), lower plate (3) and upper plate (4) link together and form connecting plate group, the fixation of connecting plate group
Power is less than the stretching resistance of drilling rod.
2. a kind of drilling bit of rotary-digging drilling rig according to claim 1 is it is characterised in that described lower plate (3) and upper plate (4) are solid
The fixed mode connecting is bolt connection or mode connects for screw.
3. a kind of drilling bit of rotary-digging drilling rig according to claim 2 is it is characterised in that described bolt or screw are uniform
Symmetrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310469234.6A CN103573186B (en) | 2013-10-10 | 2013-10-10 | Drill bit of rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310469234.6A CN103573186B (en) | 2013-10-10 | 2013-10-10 | Drill bit of rotary drilling rig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103573186A CN103573186A (en) | 2014-02-12 |
| CN103573186B true CN103573186B (en) | 2017-01-18 |
Family
ID=50045829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310469234.6A Active CN103573186B (en) | 2013-10-10 | 2013-10-10 | Drill bit of rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103573186B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6003152A (en) * | 1997-06-30 | 1999-12-14 | Sun Microsystems, Inc. | System for N-bit part failure detection using n-bit error detecting codes where n less than N |
| CN201513116U (en) * | 2009-09-15 | 2010-06-23 | 北京市三一重机有限公司 | Rotary drilling tool and rotary drilling rig comprising same |
| CN201810207U (en) * | 2010-09-29 | 2011-04-27 | 北京市三一重机有限公司 | Rotary excavation drilling machine and rotary excavation drilling tool thereof |
| CN202832211U (en) * | 2012-08-24 | 2013-03-27 | 三一重工股份有限公司 | Drilling tool and rotary drilling rig |
| CN203584306U (en) * | 2013-10-10 | 2014-05-07 | 徐州徐工基础工程机械有限公司 | Drill bit of rotary drilling rig |
-
2013
- 2013-10-10 CN CN201310469234.6A patent/CN103573186B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6003152A (en) * | 1997-06-30 | 1999-12-14 | Sun Microsystems, Inc. | System for N-bit part failure detection using n-bit error detecting codes where n less than N |
| CN201513116U (en) * | 2009-09-15 | 2010-06-23 | 北京市三一重机有限公司 | Rotary drilling tool and rotary drilling rig comprising same |
| CN201810207U (en) * | 2010-09-29 | 2011-04-27 | 北京市三一重机有限公司 | Rotary excavation drilling machine and rotary excavation drilling tool thereof |
| CN202832211U (en) * | 2012-08-24 | 2013-03-27 | 三一重工股份有限公司 | Drilling tool and rotary drilling rig |
| CN203584306U (en) * | 2013-10-10 | 2014-05-07 | 徐州徐工基础工程机械有限公司 | Drill bit of rotary drilling rig |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103573186A (en) | 2014-02-12 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |