CN208024281U - Snow deposit drilling reducing hot melting drill head - Google Patents
Snow deposit drilling reducing hot melting drill head Download PDFInfo
- Publication number
- CN208024281U CN208024281U CN201820520235.7U CN201820520235U CN208024281U CN 208024281 U CN208024281 U CN 208024281U CN 201820520235 U CN201820520235 U CN 201820520235U CN 208024281 U CN208024281 U CN 208024281U
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- China
- Prior art keywords
- heat block
- core
- connecting rod
- block
- articulated
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Abstract
The utility model discloses a kind of snow deposit drilling reducing hot melting drill heads, it include the first heat block, second heat block, core and connection core bar, wherein the first heat block and the second heat block are provided with several piece, first heat block and the second heat block, which interlock, is located at the border of core, connection core bar is threaded through the intermediate position of core, the lower end of connection core bar is fixed with core fixed block, it is articulated with first connecting rod on the madial wall of first heat block, the upper end of first connecting rod is articulated in the top of core by axis pin, it is articulated with second connecting rod on the madial wall of second heat block, the upper end of second connecting rod is also articulated in the top of core by axis pin, the lower part of first heat block is articulated in by axis pin on the compression bar of core fixed block, advantageous effect：It is simple in structure, reliable operation.And the drill bit is based on modular design, is convenient for changing damage component, improves the reliability of drilling tool, reduce making and maintenance cost.
Description
Technical field
The utility model is related to a kind of hot melting drill head, more particularly to a kind of snow deposit drilling reducing hot melting drill head.
Background technology
Currently, Antarctica is covered by thick ice sheet, the ice sheet of this huge thickness is to pass through long-term accumulation by accumulated snow
Compaction and formed.From in the depth bounds of 60m~120m, there is no fully consolidated for snowfall below ice sheet surface to earth's surface
Cheng Bing, but form closely knit granular snow layer.Currently, hot melt drilling technology has been widely used in the ice sheet drilling well of the South Pole.Hot melt
In the fine and close ice sheet of drilling, the melt water of generation can not miss drill bit, and then reaming can occur make to be formed by drilling to be slightly larger than
The diameter of hot melting drill head.And when granular snow layer is crept into, it is all missed into the gap of snow deposit around due to melting the melt water generated,
So reaming phenomenon will not occur, the bore diameter of formation and the diameter of hot melting drill head are almost the same.It is raising and decentralizing in this way
Lock of tool drilling is easily lead to during hot melt drilling tool.
Invention content
Purpose of the utility model is to solve provided the problem of being easy to cause lock of tool drilling when granular snow layer is crept into
A kind of snow deposit drilling use reducing hot melting drill head.
Snow deposit drilling reducing hot melting drill head provided by the utility model include the first heat block, the second heat block,
Core and connection core bar, wherein the first heat block and the second heat block are provided with several piece, the first heat block and the second heat block are handed over
Mistake is located at the border of core, and connection core bar is threaded through the intermediate position of core, and the lower end for connecting core bar is fixed with core fixed block,
First connecting rod is articulated on the madial wall of first heat block, the upper end of first connecting rod is articulated in the top of core by axis pin, the
Second connecting rod is articulated on the madial wall of two heat blocks, the upper end of second connecting rod is also articulated in the top of core by axis pin, the
The lower part of one heat block is articulated in by axis pin on the compression bar of core fixed block, and the lower end of the second heat block is free end, and first
The radian of the adjacent wall of heat block and the second heat block is corresponding, and the first heat block and the second heat block can be pasted closely
It closes.
The material of first heat block and the second heat block is red copper, wherein being inserted with the first heating rod in the first heat block
With the second heating rod, the first heating rod is inserted with two, and the second heating rod is plugged between two first heating rods, the first heating
The length of stick is more than the length of the second heating rod, and second heating rod is inserted in the second heat block.
Core is cone, the medial surface radian phase of the radian of core lateral surface and the first heat block and the second heat block
It answers, the shape for the border composition that the first heat block and the second heat block are staggeredly disposed around core is also cone.
The first connecting rod being pivotally connected on first heat block madial wall is L-type.
The top of first connecting rod and second connecting rod offers what sliding slot, first connecting rod and second connecting rod were articulated with core
Axis pin is plugged in sliding slot, and axis pin can slide in sliding slot, and the length of first connecting rod upper hopper chute is more than second connecting rod upper hopper chute
Length.
The top of connection core bar is threaded through the intermediate position of fixed block plate, and fixed block plate is connected in the inner cavity of outer tube, even
The top for connecing core bar is fixed on sliding block plate, and sliding block plate is located at the top of fixed block plate, and sliding block plate can be in outer tube
It is slided in inner cavity.
The operation principle of the utility model：
When hot melting drill head heats downwards drilling, drill bit is contacted with bottom hole always, and bit face is complete circular cone at this time
Shape, drill bit open and the diameter of consistently greater than drilling tool outer tube are kept to be crept into, therefore bore diameter is more than drilling tool outer tube diameter.
When completion hot melt drilling needs to carry brill, drilling tool outer tube moves upwards first under landscape apparatus lifting effect, and
Drive fixed block plate and core synchronize move upwards, slide block plate, connection core bar and core fixed block at this time due to Gravitative Loads
Remains stationary, while the axis pin being connect with the first heat block and the second heat block on core will be along first connecting rod and second connecting rod
On sliding slot slided, the first heat block and the second heat block also remains stationary under Gravitative Loads at this time.Due to the second company
Sliding slot on bar is short compared with the sliding slot on first connecting rod, therefore the connection axis pin on core arrives first at second when moving upwards
The upper limit of connecting rod sliding slot, and drive the second heating BOB(beginning of block) to move upwards by second connecting rod, force the second heating block body
It is detached from the first heating block body, and is inwardly collapsed.Core continues up, when core upper edge and first connecting rod " L " end in contact
Afterwards, first connecting rod is forced to rotate by hinge of axis pin, at this time since sliding block plate, connection core bar and core fixed block still exist
Remains stationary under Gravitative Loads, therefore the first heat block top will be under first connecting rod effect to contract, until the first heating
Until block upper contact core, or the fixed block plate of sliding block plate contact.Hot melting drill head is contraction state at this time, and outer diameter will be less than
Drilling tool outer tube diameter, therefore lock of tool drilling will not occur for drilling tool during entirely above carrying.
When hot melting drill head, which is transferred, starts drilling to bottom hole, the first heat block contact hole bottom first of three openings generates resistance
Power stopping moves downward, and core fixed block, connection core bar and the sliding block plate being attached thereto stop transferring therewith.But drilling tool outer tube
Continue to move downward with the fixation block plate and core being attached thereto.Second connecting rod together with the second heat block suspended in midair with
It and moves downward, until the side contact of incline plane of first heat block in the skew back face and stop motion of the second heat block, at this moment,
The upper surface flush of the upper surface of first heat block and the second heat block.This moment, the upper surface of core is still higher than the first heating
The upper surface of block, still can be with free releasing.Core continues traveling downwardly, until core outer surface and the first heat block and second heat
Block inner surface is bonded completely, and the first heat block and the second heat block is promoted to fit closely.Simultaneously as the first heat block is the bottom of along
The fixed pin shaft rotation in portion is flared out, and when step contacts core fixed block lower surface in the first heat block bottom, first adds
Stopping is flared out by heat block, therefore the first heat block and the second heat block are total in core outer surface and core fixed block lower surface
Full cone hot melting drill head will be formed under same-action.
The beneficial effects of the utility model：
Snow deposit drilling provided by the utility model is solved with reducing hot melting drill head in snow deposit hot melting drill head drilling process
It is easy to the problem of blocking, by designing combination radial variable hot melting drill head, realizes snow deposit hot melting drill head diameter and creeping into and carrying
The automatic switchover under two states is risen, to promoting the development of hot melt drilling technology and polar research to play an important roll.This practicality
The novel gravity for relying only on drilling tool itself and lifting power when carrying brill, only rely on internal structure linkage that bit diameter can be realized
Variation, simple in structure, reliable operation.And the drill bit is based on modular design, is convenient for changing damage component, improves drilling tool
Reliability, reduce making and maintenance cost.
Description of the drawings
Fig. 1 is drill bit overall structure exploded perspective view described in the utility model.
Fig. 2 is the first heat block structural schematic diagram described in the utility model.
Fig. 3 is the second heat block structural schematic diagram described in the utility model.
Fig. 4 is core fixed-block-architecture (FBA) schematic diagram described in the utility model.
1, the first heat block 2, the second heat block 3, core 4, connection core bar
5, core fixed block 6, first connecting rod 7, axis pin 8, second connecting rod 9, compression bar
10, the first heating rod 11, the second heating rod 12, sliding slot 13, fixed block plate
14, block plate 15, outer tube are slided.
Specific implementation mode
Shown in please referring to Fig.1 to Fig.4：
Snow deposit drilling reducing hot melting drill head provided by the utility model includes the first heat block 1, the second heat block
2, core 3 and connection core bar 4, wherein the first heat block 1 and the second heat block 2 are provided with several piece, the first heat block 1 and second adds
Heat block 2, which is interlocked, is located at the border of core 3, and connection core bar 4 is threaded through the intermediate position of core 1, and the lower end of connection core bar 4 is fixed with
Core fixed block 5 is articulated with first connecting rod 6 on the madial wall of first heat block 1, and the upper end of first connecting rod 6 is pivotally connected by axis pin 7
Second connecting rod 8 is articulated on the top of core 1, the madial wall of the second heat block 2, the upper end of second connecting rod 8 passes through axis pin 7
It is articulated in the top of core 1, the lower part of the first heat block 1 is articulated in by axis pin 7 on the compression bar 9 of core fixed block 5, and second adds
The lower end of heat block 2 is free end, and the radian of the adjacent wall of the first heat block 1 and the second heat block 2 is corresponding, the first heat block 1
It can be closely bonded with the second heat block 2.
The material of first heat block 1 and the second heat block 2 is red copper, is added wherein being inserted with first in the first heat block 1
Hot pin 10 and the second heating rod 11, the first heating rod 10 are inserted with two, and the second heating rod 11 is plugged in two first heating rods
Between 10, the length of the first heating rod 10 is more than the length of the second heating rod 11, and being inserted with one second in the second heat block 2 adds
Hot pin 11.
Core 3 is cone, the medial surface radian of the radian of 3 lateral surface of core and the first heat block 1 and the second heat block 2
Accordingly, the shape that the first heat block 1 and the second heat block 2 are staggeredly disposed around the border composition of core 3 is also cone.
The first connecting rod 6 being pivotally connected on first heat block, 1 madial wall is L-type.
The top of first connecting rod 6 and second connecting rod 8 offers sliding slot 12, first connecting rod 6 and second connecting rod 8 and core 3
The axis pin 7 being articulated is plugged in sliding slot 12, and axis pin 7 can slide in sliding slot 12, and the length of 6 upper hopper chute 12 of first connecting rod is big
In the length of 8 upper hopper chute 12 of second connecting rod.
The top of connection core bar 4 is threaded through the intermediate position of fixed block plate 13, and fixed block plate 13 is connected in the interior of outer tube 15
In chamber, the top of connection core bar 4 is fixed on sliding block plate 14, and sliding block plate 14 is located at the top of fixed block plate 13, sliding gear
Disk 14 can be slided in the inner cavity of outer tube 15.
The operation principle of the utility model：
When hot melting drill head heats downwards drilling, drill bit is contacted with bottom hole always, and bit face is complete circular cone at this time
Shape, drill bit open and the diameter of consistently greater than drilling tool outer tube are kept to be crept into, therefore bore diameter is more than drilling tool outer tube diameter.
When completion hot melt drilling needs to carry brill, drilling tool outer tube 15 moves upwards first under landscape apparatus lifting effect,
And drive fixed block plate 13 and core 3 synchronize move upwards, slide at this time block plate 14, connection core bar 4 and core fixed block 5 due to
Gravitative Loads remains stationary, while the axis pin 7 being connect with the first heat block 1 and the second heat block 2 on core 3 will connect along first
Sliding slot 12 on bar 6 and second connecting rod 8 is slided, and the first heat block 1 and the second heat block 2 are also protected under Gravitative Loads at this time
It holds static.Since the sliding slot 12 on second connecting rod 8 is short compared with the sliding slot 12 on first connecting rod 6, the connection axis pin 7 on core 3
When moving upwards, the upper limit of 8 sliding slot 12 of second connecting rod is arrived first at, and drive the second heat block 2 to open by second connecting rod 8
Beginning moves upwards, and forces 2 ontology of the second heat block to be detached from 1 ontology of the first heat block, and inwardly collapse.Core 3 continues up fortune
It is dynamic, after 3 upper edge of core and " L " end in contact of first connecting rod 6, first connecting rod 6 is forced to rotate for hinge with axis pin 7, this
When due to sliding block plate 14, connection core bar 4 and core fixed block 5 remains stationary still under Gravitative Loads, the first heat block 1
It top will be under the effect of first connecting rod 6 to contract, until 1 upper contact core 3 of the first heat block, or sliding block plate 14 connect
Until touching fixed block plate 13.Hot melting drill head is contraction state at this time, and outer diameter will be less than drilling tool outer tube diameter, therefore entirely above carry
Lock of tool drilling will not occur for drilling tool in the process.
When hot melting drill head, which is transferred, starts drilling to bottom hole, the first heat block 1 contact hole bottom first of three openings generates
Resistance stopping moves downward, and core fixed block 5, connection core bar 4 and the sliding block plate 14 being attached thereto stop decentralization therewith.But it bores
Tool outer tube 15 and the fixation block plate 13 being attached thereto and core 3 continue to move downward.Second connecting rod 8 is together with second suspended in midair
Heat block 2 and then moves downward together, until first heat block 1 in the skew back face and stop motion of the second heat block 2
Side contact of incline plane, at this moment, the upper surface flush of the upper surface of the first heat block 1 and the second heat block 2.This moment, the upper table of core 3
Face is still higher than the upper surface of the first heat block 1, still can be with free releasing.Core 3 continues traveling downwardly, until 3 outer surface of core
It is bonded completely with the first heat block 1 and 2 inner surface of the second heat block, promotes the first heat block 1 and the second heat block 2 closely patch
It closes.Simultaneously as the first heat block 1 be along bottom fixed pin shaft 7 rotation be flared out, as 1 bottom Nei Tai of the first heat block
When rank contacts core 5 lower surface of fixed block, stopping is flared out by the first heat block 1, therefore the first heat block 1 and second heats
Block 2 will form full cone hot melting drill head under 5 lower surface collective effect of 3 outer surface of core and core fixed block.
Claims (6)
1. a kind of snow deposit drilling reducing hot melting drill head, it is characterised in that：Include the first heat block, the second heat block, core
Body and connection core bar, wherein the first heat block and the second heat block are provided with several piece, the first heat block and the second heat block interlock
It is located at the border of core, connection core bar is threaded through the intermediate position of core, and the lower end for connecting core bar is fixed with core fixed block, the
It is articulated with first connecting rod on the madial wall of one heat block, the upper end of first connecting rod is articulated in the top of core by axis pin, and second
It is articulated with second connecting rod on the madial wall of heat block, the upper end of second connecting rod is also articulated in the top of core by axis pin, and first
The lower part of heat block is articulated in by axis pin on the compression bar of core fixed block, and the lower end of the second heat block is free end, and first adds
The radian of the adjacent wall of heat block and the second heat block is corresponding, and the first heat block and the second heat block can be closely bonded.
2. a kind of snow deposit drilling reducing hot melting drill head according to claim 1, it is characterised in that：Described first adds
Heat block and the material of the second heat block are red copper, wherein the first heating rod and the second heating rod are inserted in the first heat block,
First heating rod is inserted with two, and the second heating rod is plugged between two first heating rods, and the length of the first heating rod is more than
The length of second heating rod is inserted with second heating rod in the second heat block.
3. a kind of snow deposit drilling reducing hot melting drill head according to claim 1, it is characterised in that：The core is
Cone, the radian of core lateral surface is corresponding to the first heat block and the medial surface radian of the second heat block, the first heat block and
The shape that second heat block is staggeredly disposed around the border composition of core is also cone.
4. a kind of snow deposit drilling reducing hot melting drill head according to claim 1, it is characterised in that：Described first adds
The first connecting rod being pivotally connected on heat block madial wall is L-type.
5. a kind of snow deposit drilling reducing hot melting drill head according to claim 1, it is characterised in that：Described first connects
The top of bar and second connecting rod offers sliding slot, first connecting rod and second connecting rod and is plugged in sliding slot with the axis pin that core is articulated
Interior, axis pin can slide in sliding slot, and the length of first connecting rod upper hopper chute is more than the length of second connecting rod upper hopper chute.
6. a kind of snow deposit drilling reducing hot melting drill head according to claim 1, it is characterised in that：The connection core
The top of bar is threaded through the intermediate position of fixed block plate, and fixed block plate is connected in the inner cavity of outer tube, and the top for connecting core bar is solid
It is scheduled on sliding block plate, sliding block plate is located at the top of fixed block plate, and sliding block plate can be slided in the inner cavity of outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820520235.7U CN208024281U (en) | 2018-04-13 | 2018-04-13 | Snow deposit drilling reducing hot melting drill head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820520235.7U CN208024281U (en) | 2018-04-13 | 2018-04-13 | Snow deposit drilling reducing hot melting drill head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208024281U true CN208024281U (en) | 2018-10-30 |
Family
ID=63910470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820520235.7U Expired - Fee Related CN208024281U (en) | 2018-04-13 | 2018-04-13 | Snow deposit drilling reducing hot melting drill head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208024281U (en) |
-
2018
- 2018-04-13 CN CN201820520235.7U patent/CN208024281U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181030 Termination date: 20190413 |