CN205532303U - A friction formula drill bit for deep basement rock grooving - Google Patents
A friction formula drill bit for deep basement rock grooving Download PDFInfo
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- CN205532303U CN205532303U CN201620380728.6U CN201620380728U CN205532303U CN 205532303 U CN205532303 U CN 205532303U CN 201620380728 U CN201620380728 U CN 201620380728U CN 205532303 U CN205532303 U CN 205532303U
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Abstract
The utility model discloses a friction formula drill bit for deep basement rock grooving, include: drillstock, its top are connected the brill body of drillstock bottom, wherein, it includes to bore the body: its top is connected the body of drillstock bottom, the setting is in a plurality of grinding subassemblies of body bottom, the setting is in being used for on the body outer wall discharge a plurality of rows of dressing troughs of rock power, its every arrange the dressing trough row starch mouthful with two grinding subassemblies in a plurality of grinding subassemblies are adjacent, the setting the body bottom be used for seal the partly a plurality of curved body of every grinding subassembly respectively. The utility model discloses a friction formula drill bit, simple structure creeps into the work efficiency height, and the supplementary time spent of construction is few, and construction cost is low, and construction safety is guaranteed to the downthehole sticking of tool of difficult appearance, ensures the engineering quality for the project progress.
Description
Technical field
This utility model relates to construction engineering technical field, particularly relates to a kind of friction for deep basement rock grooving
Formula drill bit.
Background technology
During ground is processed, various geological conditions can be run into, such as complete hard deep rock,
Such rock strength is big and deep, and such as deep light weathered granite, its rock strength is maximum up to 132MPa.
In prior art, when hard deep rock is carried out drilling construction, it is all to use routine impact brill to join cross
Drill bit rushes the construction method pounded, and adopts in this way, easily occurs blocking the situation of drill bit, and cross in boring
The corner bored often fractures so that it is extremely low to creep into work efficiency, and the construction auxiliary used time is many, and construction cost is high.
Summary of the invention
The purpose of this utility model is contemplated to solve the problems referred to above, it is provided that a kind of rubbing for deep basement rock grooving
Erasing drill bit, its simple in construction, creep into work efficiency height, the construction auxiliary used time is few, and construction cost is low, is difficult to appearance
Bit freezing in hole, it is ensured that construction safety, it is ensured that construction quality, speeds up the work.
For realizing above-mentioned purpose of the present utility model, this utility model provides a kind of rubbing for deep basement rock grooving
Erasing drill bit, including drillstock, the drill body of the described drillstock bottom of connection, its top, wherein, described drill body includes:
Its top connects the body of described drillstock bottom；It is arranged on multiple grinding subassemblies of described body bottom；It is arranged on
The multiple discharge troughs for discharging rock dust on described body outer wall, the plasma discharge mouth of each of which discharge trough is with described many
Two grinding subassemblies in individual grinding subassembly are adjacent；Be arranged on body bottom for closing off each grinding group
Multiple arc bodies of a part part.
Wherein, described grinding subassembly includes: be arranged at a pair first grinding blocks of described body bottom；It is arranged at
Described body bottom and be positioned at the second grinding block inside a pair first grinding blocks；Wherein, described second grinding block
It is Y-shaped distribution with the pair of first grinding block.
Wherein, described body bottom portion has multiple claw, and each described grinding subassembly is placed on a claw.
Preferably, each described arc body is arranged at the edge of a claw of described body.
Preferably, the medial surface of the arc body on each described claw and a pair first grinding blocks on this claw
Lateral surface contacts respectively, in order to arc body closes a pair first grinding blocks.
Wherein, use is left between lateral surface and the medial surface of the pair of first grinding block of described second grinding block
In the reserved mouth of a river being connected with described plasma discharge mouth.
Wherein, the lateral surface of each claw of described body is curved, and the external diameter of described arc body is equal to described lobe
The radius of pawl.
Wherein, the radius of the plasma discharge mouth of described discharge trough is more than the radius of described discharge trough other parts.
Preferably, described first grinding block and described second grinding block are respectively one bar seamed edge triangular prism down.
Preferably, described first grinding block and described second grinding block are made by high-strength alloy.
Compared with prior art, the friction-type drill bit for deep basement rock grooving of this utility model embodiment has
Following advantage:
1), the friction-type drill bit of the present embodiment, there is multiple grinding subassembly, use flat by multiple grinding subassemblies
The mode of face grinding, to deep basement rock trenching construction, increases the contact area between grinding subassembly and basement rock, makes
Drill bit is uniform to the impulsive force of basement rock, is difficult to bit freezing phenomenon occur, has pore-creating and entangle during grinding pore-creating
Inclined effect.
2), the friction-type drill bit of the present embodiment, honeycomb can be formed between multiple grinding subassemblies and multiple arc body
The free face of shape, thus pore-forming when beneficially basement rock is crept into by drill bit crushes, and improves and creeps into work efficiency, accelerates construction
Progress；
3), the friction-type drill bit of the present embodiment, between the first grinding block and the second grinding block, leave the reserved mouth of a river,
And the reserved mouth of a river is connected with plasma discharge mouth, so that the rock dust even grinding block formed during drill bit grinding basement rock is broken
Slag can be discharged in time without accumulating at the bottom of hole, thus without forming thicker precipitate at the bottom of hole, it is to avoid heavy
Precipitate is repeated to creep into by impulsive force and the drill bit of shallow lake thing cushioned drill bit, and improve drill bit creeps into work efficiency,
Improve construction speed；
4), the friction-type drill bit of the present embodiment, the lateral surface of a pair corresponding first grinding blocks closed by arc body,
And the external diameter of arc body is identical with the radius of corresponding claw, therefore, it can be ensured that when drill bit creeps into basement rock pore-creating, hole
Edge round and smooth and without teeth resistance, improve efficiency of construction when creeping into, reduce the unproductive time repairing hole, it is ensured that
Construction quality；
5), the friction-type drill bit of the present embodiment, each grinding block is made up of the high-strength alloy of wear and shock-resistant,
Will not fall slag or broken during grinding basement rock easily, drill bit is keeped in repair, boring carries out deslagging, repaiies hole by minimizing
Unproductive time, improve creep into work efficiency；
6), the friction-type drill bit of the present embodiment, other parts at drill body or drill bit are provided with hanger, by
Wear the steel wire rope for drawing drill bit in hanger, prevent drill bit when basement rock is carried out high speed impact, occur
Brill situation, improves construction safety and work efficiency.
Below in conjunction with the accompanying drawings this utility model embodiment is described in detail.
Accompanying drawing explanation
Fig. 1 is the front view of the friction-type drill bit of this utility model embodiment；
Fig. 2 is the upward view of friction-type drill bit shown in Fig. 1.
Detailed description of the invention
The problem run into when inventor is to common deep basement rock trenching construction is constantly studied, and finds prior art
The main cause that middle drilling efficiency is low includes following aspects:
1) rock mass of deep basement rock completely fine and close intensity is high, and in rock mass, crack is few, and the chisel power of rushing of drill bit is by base
Rock entirety uniformly transfers, and drilling efficiency is low；
2) bit wear falls block, falls slag seriously, and bushel iron block, scum weight are big, accumulate at the bottom of hole, it is difficult to floating
Slag and deslagging, form thicker precipitation, buffered the impulsive force of drill bit；
3) weldering drill bit, to repair the paving assistant engineer such as hole, deslagging many when acting on, and affect work efficiency.
For above-mentioned reason, inventor improves the drill bit of application in prior art, the cross of prior art bore
Head changes that friction of the present utility model is facial and the mouth of a river changes the friction-type drill bit that welding method is formed into.
As it is shown in figure 1, the friction-type drill bit for deep basement rock grooving provided for this utility model embodiment
Front view, Fig. 2 is the upward view of friction-type drill bit shown in Fig. 1.As seen from Figure 1, Figure 2, this utility model
The friction-type drill bit that embodiment provides includes the drillstock 1 for connecting with rig, connection drillstock 1 bottom, its top
Drill body 2, wherein, drill body 2 includes: its top connect drillstock 1 bottom body 3；It is arranged on body 3
Multiple grinding subassemblies of bottom；The multiple discharge troughs 4 for discharging rock dust being arranged on body 3 outer wall, its
The plasma discharge mouth of each discharge trough 4 is adjacent with two grinding subassemblies in multiple grinding subassemblies；It is arranged on body 3
Multiple arc bodies 6 for closing off each grinding subassembly part of bottom.
It should be noted that deep basement rock herein refer to hardness up to 132MPa, cover layer be several meters and
Depth of stratum reaches the geology of 20-40 rice.
Concrete, as shown in Figure 1 and Figure 2, the body 3 of the present embodiment friction-type drill bit is in up-narrow and down-wide cone
Shape, uniform in the bottom of body 3 arrange multiple grinding subassembly (grinding subassembly can be 2,3,4
Or more, figure only shows 4 grinding subassemblies), by the way of multiple grinding subassemblies use flat surface grinding
To deep basement rock trenching construction, increase the contact area between grinding subassembly and basement rock, make drill bit to basement rock
Impulsive force is uniform, is difficult to bit freezing phenomenon occur during grinding pore-creating, has the effect of pore-creating correction.?
The outer wall of body 3 is offered along its axially extended multiple discharge troughs 4, by discharge trough 4 by grinding subassembly grinding
The rock dust formed during basement rock is discharged, in order to improves and creeps into work efficiency, reduces the abrasion to grinding subassembly.At body 3
Bottom arranges multiple arc body 6 (quantity of arc body 6 is identical with the quantity of grinding subassembly), by each arc
Body 6 closes a grinding subassembly part, in order to can between multiple grinding subassemblies and corresponding multiple arc bodies
To form honeycomb free face, when being beneficial to creep into basement rock, pore-forming crushes.
Wherein, having multiple claw bottom body 3, the quantity of claw can be 2,3,4 or more
Multiple, during design, the quantity of claw is identical with the quantity of grinding subassembly, arc body, and position each other is closed
It is the most identical, and determines the quantity of claw according to the concrete condition of construction.Multiple discharge troughs 4 are respectively arranged at often
Between two adjacent claws.Below, only with the knot of the friction-type drill bit with 4 claws as shown in Figure 2
As a example by structure, the structure of friction-type drill bit of the present utility model is described in detail.
As in figure 2 it is shown, the friction-type drill bit of the present embodiment has 4 claws, each claw disposes a mill
Cutting assembly and an arc body 6, arc body is arranged at the edge of corresponding claw.Wherein, the mill on each claw
Cut assembly to include: be arranged at a pair first grinding blocks 5 of body 3 bottom (i.e. claw bottom), be arranged at this
Body 3 bottom (i.e. claw bottom) and be positioned at the second grinding block 7 inside a pair first grinding blocks 5, the second mill
Cut block 7 and a pair first grinding blocks 5 are distributed in Y-shaped so that the second grinding block 7 and a pair first grinding blocks
What between 5, formation beneficially pore-forming was broken faces dead slot.Preferably, the lateral surface of the second grinding block 7 and a pair first
The reserved mouth of a river 8 is left, in order to the rock dust formed during grinding block grinding basement rock is from advance between the medial surface of grinding block 5
Stay the mouth of a river 8 to flow to the plasma discharge mouth of discharge trough 4, and discharge via discharge trough 4, it is to avoid rock dust even grinding
The disintegrating slag of block accumulates at the bottom of hole, it is difficult to floats in hole and discharges so that form thicker precipitate at the bottom of hole, and
Precipitate has buffered the impulsive force of drill bit, makes drill bit repeat to creep into precipitate, thus reduces the brill of drill bit
Enter work efficiency, affect construction speed.
Preferably, the lateral surface of each claw of body 3 is curved, and the external diameter of the arc body 6 on claw is equal to
The radius of claw, i.e. arc body 6 being axially placed in bottom claw and extending down along body 3.Wherein,
The lateral surface of the medial surface of the arc body 6 on each claw and a pair first grinding blocks 5 on this claw phase respectively
Contact, in order to arc body 6 closes a pair first grinding blocks 5.During design, the height of arc body 6 can be less than
The height of grinding block (height herein refer to arc body 6 and each grinding block along body axial direction from the bottom of body
The height that end extends down).
Owing to the lateral surface of a pair first grinding blocks 5 is closed by the arc body 6 on claw, and outside arc body 6
Footpath is identical with the radius of corresponding claw, therefore, it can be ensured that when drill bit creeps into basement rock pore-creating, the edge in hole round and smooth and
Resistance without teeth, thus improve efficiency of construction when creeping into.
Due to the arc body 6 on each claw, between a pair first grinding blocks 5 and the second grinding block 7, form sky
Groove so that can be formed between multiple grinding subassemblies and the multiple arc body 6 on multiple claws and favose face sky
Face, thus beneficially pore-forming crushes.
Wherein, the discharge trough arranged between adjacent claw extends up and down along body axially direction, and plasma discharge
The plasma discharge mouth of the groove opening being positioned at body bottom of discharge trough (the plasma discharge mouth refer to) is in circular arc and towards at the bottom of body
The center position of end is recessed.During design, the radius of plasma discharge mouth is more than the radius of discharge trough other parts, i.e. row
Stock tank extends after being tilted upward an extension part by plasma discharge mouth the most straight up.
Wherein, the first grinding block 5 and second grinding block 7 of the present embodiment is respectively one bar seamed edge three down
Rib body (as shown in Figure 2), this seamed edge becomes the grinding sword of grinding block, and the faceted pebble corresponding with this seamed edge is fixed
It is arranged on body bottom, as each grinding face being welded on the bottom of body by the way of welding.
Preferably, the first grinding block 5 and the second grinding block 7 are made by high-strength alloy, make grinding block
High-strength alloy can use having of prior art high strength cemented carbide steel wear-resisting, resistance to impact one-tenth to make,
And preferably yield strength is not less than 800MPa, as YG3X tungsten steel alloy can be used to make.And arc body can be adopted
Make with the material identical with grinding block, it is possible to use other material with high intensity to make, e.g., use height
Intensity spring or semiaxis are made, and are fixed on the edge of body by the way of welding, together with each grinding block,
Realize tunneling boring and form high intensity rubbing surface.
Additionally, the present embodiment is at drill body 2 (as shown in Figure 1) or for connecting setting on other parts of drill bit
Hanger 9, by wearing the steel wire rope for drawing drill bit in hanger 9, prevents friction-type of the present utility model
Drill bit when basement rock is carried out high speed impact, drill bit falls to bore the generation of situation.
Compare through site operation, use the friction-type drill bit of the present embodiment that hardness is up to 132MPa, rock stratum thickness
Degree reaches the rock mass of 20-40 rice when carrying out pore-creating grooving, drilling efficiency than the drill bit of prior art double with
On, greatly ensure that construction safety, it is ensured that construction quality, accelerate project progress.
In sum, friction-type drill bit of the present utility model has the advantage that
1), the friction-type drill bit of the present embodiment, there is multiple grinding subassembly, use flat by multiple grinding subassemblies
The mode of face grinding, to deep basement rock trenching construction, increases the contact area between grinding subassembly and basement rock, makes
Drill bit is uniform to the impulsive force of basement rock, is difficult to bit freezing phenomenon occur, has pore-creating and entangle during grinding pore-creating
Inclined effect.
2), the friction-type drill bit of the present embodiment, honeycomb can be formed between multiple grinding subassemblies and multiple arc body
The free face of shape, thus pore-forming when beneficially basement rock is crept into by drill bit crushes, and improves and creeps into work efficiency, accelerates construction
Progress；
3), the friction-type drill bit of the present embodiment, between the first grinding block and the second grinding block, leave the reserved mouth of a river,
And the reserved mouth of a river is connected with plasma discharge mouth, so that the rock dust even grinding block formed during drill bit grinding basement rock is broken
Slag can be discharged in time without accumulating at the bottom of hole, thus without forming thicker precipitate at the bottom of hole, it is to avoid heavy
Precipitate is repeated to creep into by impulsive force and the drill bit of shallow lake thing cushioned drill bit, and improve drill bit creeps into work efficiency,
Improve construction speed；
4), the friction-type drill bit of the present embodiment, the lateral surface of a pair corresponding first grinding blocks closed by arc body,
And the external diameter of arc body is identical with the radius of corresponding claw, therefore, it can be ensured that when drill bit creeps into basement rock pore-creating, hole
Edge round and smooth and without teeth resistance, improve efficiency of construction when creeping into, reduce the unproductive time repairing hole, it is ensured that
Construction quality；
5), the friction-type drill bit of the present embodiment, each grinding block is made up of the high-strength alloy of wear and shock-resistant,
Will not fall slag or broken during grinding basement rock easily, drill bit is keeped in repair, boring carries out deslagging, repaiies hole by minimizing
Unproductive time, improve creep into work efficiency；
6), the friction-type drill bit of the present embodiment, other parts at drill body or drill bit are provided with hanger, by
Wear the steel wire rope for drawing drill bit in hanger, prevent drill bit when basement rock is carried out high speed impact, occur
Brill situation, improves construction safety and work efficiency.
Although being explained in detail this utility model embodiment above, but this utility model embodiment is not limited to this,
Those skilled in the art can modify according to the principle of this utility model embodiment, therefore, all presses
The various amendments carried out according to the principle of this utility model embodiment all should be understood to that falling into this utility model implements
The protection domain of example.
Claims (10)
1., for a friction-type drill bit for deep basement rock grooving, connect described drillstock including drillstock, its top
The drill body of bottom, it is characterised in that described drill body includes:
Its top connects the body of described drillstock bottom；
It is arranged on multiple grinding subassemblies of described body bottom；
The multiple discharge troughs for discharging rock dust being arranged on described body outer wall, the plasma discharge of each of which discharge trough
Mouth is adjacent with two grinding subassemblies in the plurality of grinding subassembly；
It is arranged on the multiple arc bodies for closing off each grinding subassembly part of body bottom.
Friction-type drill bit the most according to claim 1, it is characterised in that described grinding subassembly includes:
It is arranged at a pair first grinding blocks of described body bottom；
It is arranged at described body bottom and is positioned at the second grinding block inside a pair first grinding blocks；
Wherein, described second grinding block and the pair of first grinding block are Y-shaped distribution.
Friction-type drill bit the most according to claim 2, it is characterised in that described body bottom portion has many
Individual claw, each described grinding subassembly is placed on a claw.
4. according to the friction-type drill bit described in Claims 2 or 3, it is characterised in that each described arc body
It is arranged at the edge of a claw of described body.
Friction-type drill bit the most according to claim 4, it is characterised in that the arc on each described claw
The medial surface of body contacts respectively with the lateral surface of a pair first grinding blocks on this claw, in order to arc body seals
Close a pair first grinding blocks.
Friction-type drill bit the most according to claim 2, it is characterised in that outside described second grinding block
Leave reserved for be connected with described plasma discharge mouth between side with the medial surface of the pair of first grinding block
The mouth of a river.
Friction-type drill bit the most according to claim 1, it is characterised in that each claw of described body
Lateral surface curved, the external diameter of described arc body is equal to the radius of described claw.
Friction-type drill bit the most according to claim 1, it is characterised in that the plasma discharge mouth of described discharge trough
Radius more than the radius of described discharge trough other parts.
Friction-type drill bit the most according to claim 2, it is characterised in that described first grinding block and institute
State the second grinding block and be respectively one bar seamed edge triangular prism down.
Friction-type drill bit the most according to claim 9, it is characterised in that described first grinding block and institute
State the second grinding block to be made by high-strength alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620380728.6U CN205532303U (en) | 2016-04-28 | 2016-04-28 | A friction formula drill bit for deep basement rock grooving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620380728.6U CN205532303U (en) | 2016-04-28 | 2016-04-28 | A friction formula drill bit for deep basement rock grooving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205532303U true CN205532303U (en) | 2016-08-31 |
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ID=56795288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620380728.6U Active CN205532303U (en) | 2016-04-28 | 2016-04-28 | A friction formula drill bit for deep basement rock grooving |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205532303U (en) |
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2016
- 2016-04-28 CN CN201620380728.6U patent/CN205532303U/en active Active
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| GR01 | Patent grant |