CN109505525A - A kind of drill steel that jumbolter uses and bit shank sealing structure - Google Patents
A kind of drill steel that jumbolter uses and bit shank sealing structure Download PDFInfo
- Publication number
- CN109505525A CN109505525A CN201910015439.4A CN201910015439A CN109505525A CN 109505525 A CN109505525 A CN 109505525A CN 201910015439 A CN201910015439 A CN 201910015439A CN 109505525 A CN109505525 A CN 109505525A
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- drill
- drill steel
- packer
- spray head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 88
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 54
- 239000010959 steel Substances 0.000 title claims abstract description 54
- 239000007921 spray Substances 0.000 claims abstract description 71
- 230000000694 effects Effects 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000012856 packing Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 33
- 238000005065 mining Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 12
- 238000005553 drilling Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 239000011435 rock Substances 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Structural Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to technical field of mining equipment, and disclose a kind of drill steel that jumbolter uses and bit shank sealing structure, including drill steel, lugs, sealing ring and drill sleeve, the lower section of drill sleeve is arranged with sealed nozzle mechanism, sealed nozzle mechanism is made of spray head, spray tail and packer, and spray head is threadedly coupled with spray tail.The present invention is intracavitary to insulating by diversion cavity guiding hydraulic pressure, so that packer suppresses sealing ring, to realize sealing effect, compared with original sealing, sealing is contacted with sealing ring by hydraulic pressure pushing tow packer, the case where changing sealing ring directly deformation occurs by rigid body pressure, and drill steel and the surge of drill sleeve generation directly pass through lugs and reach on drill sleeve, sealing ring is not influenced by direct impact, so having ensured that sealing ring only bears the water pressure that packer transmitting comes when there is hydraulic pressure well, to under the premise of guaranteeing sealing effect, so that sealing ring avoids that Fatigue Deformation occurs because of reciprocating impact, further extend the service life of sealing ring.
Description
Technical field
The present invention relates to technical field of mining equipment, specially a kind of drill steel that jumbolter uses and bit shank sealing are tied
Structure.
Background technique
Wet type jumbolter drills for coal mine rock drilling, installs support anchor rod, and the drill steel middle part for drilling is hollow, is used for
It sprays water to rock drilling, the rock break flour of drilling is drenched into outflow, alleviate the dust of working environment while preventing drilling from blocking.When
Before, the sealing structure used on the drill sleeve and drill steel of jumbolter is the outer fitted outside round section joint ring sealing of bit shank, such sealing side
Formula needs round section joint ring to have certain decrement, consumes very much worker's physical strength in drill steel and the frequent swapping process of drill sleeve as a result,
In this regard, China Patent No. CN100445513 proposes that a kind of jumbolter is fed thrust self-tightening sealing drill sleeve and drill steel, effectively improve
It is laborious to solve the problems, such as that drill steel plugs for sealing effect, still, it is close to squeeze realization to sealing ring by drill steel body and water nozzle
Envelope, in drill steel body constantly reciprocal swapping process, can cause reciprocal compressional deformation, while in boring procedure to sealing ring
In, the lower part of drill steel body and cutting ferrule can generate impact extruded, since the dynamics of impact extruded is because of drilling depth and formation hardness
Change and be in dynamic change state always, to sum up states two aspect reasons, sealing ring easily occurs to squeeze Fatigue Deformation, and makes close
Contacting between seal and water nozzle causes frictional force to become larger, but will cause drill steel body difficulty plug and sealing ring lose optimal seal effect
Fruit, for this purpose, proposing a kind of sealing structure at this, it is intended to solve the above problems.
Summary of the invention
Exist in use for the drill steel and bit shank sealing mechanism of the existing jumbolter proposed in background technique
Deficiency it is more labor-saving, close to have plug drill steel the present invention provides a kind of drill steel that jumbolter uses and bit shank sealing structure
It seal the advantages of the service life is longer, solves mentioned above in the background art due to sealing ring is deformed by reciprocating impact
The problem that Fatigue Deformation causes sealing ring service life short.
The invention provides the following technical scheme: a kind of drill steel that jumbolter uses and bit shank sealing structure, including drill steel,
Lugs, sealing ring and drill sleeve, the end fixing sleeve of the drill steel are connected to lugs, and one end of the drill steel is fixedly connected with sealing
Circle, the external activity of the lugs are socketed with drill sleeve, and the drill sleeve has two sections to be welded to form, the upper section and pricker of the drill sleeve
Handle completes suit, and the lower section end of the drill sleeve is contacted with the end of lugs, and the lower section of the drill sleeve is arranged with sealed nozzle machine
Structure, the sealed nozzle mechanism are made of spray head, spray tail and packer, and the spray head is threadedly coupled with spray tail, the spray head
The socket of the internal activity of free end and drill steel, the free end of the spray tail and the lower section of drill sleeve are fixedly attached, the spray head
The diversion cavity of a truncated cone-shaped is surrounded with spray tail junction end face, the inner wall of the spray head offers the packing chamber of annular, described
The inside for insulating chamber is equipped with packer, and the smaller diameter end stretching packing chamber of the packer is simultaneously corresponding with the annular end face of sealing ring
Arrangement.
Preferably, one end spacing of the end face of the sealing ring and packer is less than packer in the row for insulating intracavitary chamber
Journey.
Preferably, the inner wall of one end of the spray head and spray tail forms a tapered surface in diversion cavity inlet just.
Preferably, the inner wall of the outer wall of the spray head and sealing ring forms a gap.
The present invention have it is following the utility model has the advantages that
1, the present invention is intracavitary to insulating by diversion cavity guiding hydraulic pressure by the way that former nozzle is converted into sealed nozzle mechanism, makes
It obtains packer and suppresses sealing ring, to realize sealing effect, compared with original sealing, pass through hydraulic pressure pushing tow packer and sealing ring
Contact sealing, the case where changing sealing ring directly deformation occurs by rigid body pressure, and the surge that drill steel and drill sleeve occur
Directly being reached on drill sleeve by lugs, sealing ring is not influenced by direct impact, so ensured that sealing ring is only having water well
The water pressure that packer transmitting comes is born when pressure, thus under the premise of guaranteeing sealing effect, so that sealing ring is avoided because reciprocal
It impacts and Fatigue Deformation occurs, further extend the service life of sealing ring.
2, the present invention changes by the way that gap will be arranged between sealing ring and spray head, while by the sealing effect of sealing ring by end face
Sealing, sealing ring do not contact sealing by pressure deformation and with spray head outer wall, thus, when there is hydraulic pressure work, water can be full of spray head
With the gap of sealing ring, thin water layer is formed, when terminating to drill, when plugging drill steel, water pressure is removed, between spray head and sealing ring
Thin water layer provides lubricant effect, convenient for separation drill steel and spray head.
3, the present invention is by setting spray head and the variation for spraying tail intracavity section product, so that the water jets under high pressure in spray tail is being passed through
After diversion cavity shunts, water column sectional area is reduced, is known according to the relationship of hydromechanical flow and flow velocity, sectional area, flows through spray head
Fluid flow rate become faster, with this make up fluid because flow into insulate chamber due to there is a situation where water pressure reduce.
Detailed description of the invention
Fig. 1 is structure of the invention cross-sectional view；
Fig. 2 is sealed nozzle mechanism structure schematic diagram of the present invention；
Fig. 3 is that sealed nozzle mechanism of the present invention splits installation diagram；
Fig. 4 is packer schematic perspective view of the present invention.
In figure: 1, drill steel；2, lugs；3, sealing ring；4, drill sleeve；5, sealed nozzle mechanism；51, spray head；52, tail is sprayed；53,
Insulate chamber；54, packer；55, diversion cavity.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-4, a kind of drill steel that jumbolter uses and bit shank sealing structure, including drill steel 1, lugs 2, sealing
Circle 3 and drill sleeve 4, the end fixing sleeve of drill steel 1 are connected to lugs 2, and one end of drill steel 1 is fixedly connected with sealing ring 3, lugs 2 it is outer
Portion's movable sleeve is connected to drill sleeve 4, and drill sleeve 4 has two sections to be welded to form, and the upper section and lugs 2 of drill sleeve 4 are completed to be set with, drill sleeve 4
Lower section end is contacted with the end of lugs 2, and the lower section of drill sleeve 4 is arranged with sealed nozzle mechanism 5, and sealed nozzle mechanism 5 is by spray head
51, it sprays tail 52 and packer 54 is constituted, spray head 51 is threadedly coupled with spray tail 52, the free end of spray head 51 and the inside of drill steel 1
Pivot bush unit, the lower section for spraying the free end and drill sleeve 4 of tail 52 are fixedly attached, and spray head 51 and spray 52 junction end face of tail surround one
The diversion cavity 55 of a truncated cone-shaped, the inner wall of spray head 51 offer the packing chamber 53 of annular, and the inside of packing chamber 53 is equipped with packer
54, the smaller diameter end of packer 54 stretches out packing chamber 53 and arrangement corresponding with the annular end face of sealing ring 3.
Wherein, one end spacing of the end face of sealing ring 3 and packer 54 is less than packer 54 in the row of packing 53 inner cavity of chamber
Journey, this setting are to realize that packer 54 can hold out against effect with the generation of sealing ring 3 within the scope of running stroke in packing chamber 53
Fruit, to realize sealing performance, meanwhile, under the premise of being convenient for actual installation packer 54, increase packer 54 appropriate is freely
The sealing effect at this can be improved to increase the contact area of packer 54 Yu sealing ring 3 in the area of end face, packer 54 with
The inner cavity of packing chamber 53 needs to form one group of structure for being similar to piston and piston cylinder, so that packer 54 will in packing chamber 53
Packing chamber 53 is divided into two chambers.
Wherein, the inner wall of one end of spray head 51 and spray tail 52 forms a tapered surface in 55 inlet of diversion cavity just, joins
Fig. 2 is read, the inside of spray tail 52 is protruded into the end of spray head 51, so that the inner wall arcwall face of the end arcwall face of spray head 51 and spray tail 52
Just the diversion cavity 55 of a truncated cone-shaped, the i.e. diversion cavity 55 of annular hollow are formed, in the inlet of diversion cavity 55, i.e. spray head 51
With the proximal end of spray 52 inner cavity of tail, a tapered surface is formed, which makes the inner cavity by spray tail 52 to the inner cavity shape of spray head 51
At a variable cross-section contiguous chamber, the purpose of such setting is, when spraying the water jets under high pressure in tail 52 by diversion cavity 55, because of part
Water enters in packing chamber 53, causes the pressure loss of water jets under high pressure, and variable cross-section setting then utilizes hydromechanical continuity equation
Principle, the opposite spray tail 52 of flow velocity for flowing into spray head 51 become larger, to make up the pressure loss for entering packing chamber 53 at spray tail 52.
Wherein, the inner wall of the outer wall of spray head 51 and sealing ring 3 forms a gap, which can deposit after full of water column
Water is stayed, annular thin water layer is formed, when stopping water jets under high pressure for seasonable, the residual water layer between sealing ring 3 and spray head 51 be can provide
Lubricant effect is extracted convenient for drill steel 1 with dynamic seal ring 3, in fact, due in drill steel 1 water jets under high pressure always towards drill steel 1 from
It is sprayed by end, that is, there is seldom water to be capable of forming the inside of pressure and indentation sealing circle 3 and spray head 51, only in drill steel 1
Free end water outlet because in boring procedure blocking in short-term due to form inside water pressure, just hydraulic pressure is entered in sealing ring 3 and spray head 51, and
In boring procedure, because the contact pressure of drill steel 1 and rock changes reason, will not always meeting be avoided so that the inside of drill steel 1 exists
Hydraulic pressure in short-term, and the gap between sealing ring 3 and spray head 51 is caused to form water layer, so kind setting, is not changing former design reason
Under the premise of reading " drill steel easy to plug ", the effect of " easy " plug is further improved, in fact, in former component, due to sealing ring 3
Compression seal needs the time since the deformation of sealing ring 3 resets, high-frequency plug drill steel 1 the case where in swapping process
Under, sealing ring 3 always occurs and the friction of spray head 51 plugs, still there can be frictional resistance, so that worker's Plug Action is laborious, phase
Instead, the present invention more preferably solve high-frequency plug under, frictional resistance problem between sealing ring 3 and spray head 51.
Working principle of the present invention is as follows:
Drill steel 1 is inserted into drill sleeve 4, one end of lugs 2 is contacted with the lower section of drill sleeve 4, is passed through high pressure water into spray tail 52
Column, partial high pressure water column are entered in packing chamber 53 by diversion cavity 55, and packer 54 is ejected so that packer 54 and sealing
Circle 3 is in close contact, and completes sealing, and another part water jets under high pressure sprays into the inner cavity of drill steel 1 by 51 inner cavity of spray head；Equipment drilling
In operation, water jets under high pressure is provided always, and drill steel 1 is forced through the lower section that lugs 2 reaches drill sleeve 4, and sealing ring 3 is not hit directly
Pressure effect；Before extracting drill steel 1, first stop injection water jets under high pressure, packer 54 loses effect of water pressure, spray head 51 and sealing ring
There are thin water layers in gap between 3, provide the lubricant effect between drill steel 1, sealing ring 3 and spray head 51, then extract drill steel 1.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of drill steel that jumbolter uses and bit shank sealing structure, including drill steel (1), lugs (2), sealing ring (3) and pricker
It covers (4), the end fixing sleeve of the drill steel (1) is connected to lugs (2), and one end of the drill steel (1) is fixedly connected with sealing ring
(3), the external activity of the lugs (2) is socketed with drill sleeve (4), and the drill sleeve (4) has two sections to be welded to form, the drill sleeve
(4) upper section and lugs (2) is completed to be set with, and the lower section end of the drill sleeve (4) is contacted with the end of lugs (2), and feature exists
In: the lower section of the drill sleeve (4) is arranged with sealed nozzle mechanism (5), and the sealed nozzle mechanism (5) is by spray head (51), spray tail
(52) with packer (54) constitute, the spray head (51) with spray tail (52) be threadedly coupled, the free end of the spray head (51) and
The internal activity of drill steel (1) is socketed, and the lower section of the free end and drill sleeve (4) of spray tail (52) is fixedly attached, the spray head
(51) diversion cavity (55) of a truncated cone-shaped is surrounded with spray tail (52) junction end face, the inner wall of the spray head (51) offers ring
The inside of the packing chamber (53) of shape, packing chamber (53) is equipped with packer (54), and the smaller diameter end of the packer (54) is stretched
Chamber (53) and arrangement corresponding with the annular end face of sealing ring (3) are insulated out.
2. the drill steel that a kind of jumbolter according to claim 1 uses and bit shank sealing structure, it is characterised in that: described
The end face of sealing ring (3) and one end spacing of packer (54) are less than packer (54) in the stroke of packing chamber (53) inner cavity.
3. the drill steel that a kind of jumbolter according to claim 1 uses and bit shank sealing structure, it is characterised in that: described
One end of spray head (51) and the inner wall of spray tail (52) form a tapered surface in diversion cavity (55) inlet just.
4. the drill steel that a kind of jumbolter according to claim 1 uses and bit shank sealing structure, it is characterised in that: described
The outer wall of spray head (51) and the inner wall of sealing ring (3) form a gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910015439.4A CN109505525B (en) | 2019-01-08 | 2019-01-08 | Drill rod and drill bit shank sealing structure for anchor rod drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910015439.4A CN109505525B (en) | 2019-01-08 | 2019-01-08 | Drill rod and drill bit shank sealing structure for anchor rod drilling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109505525A true CN109505525A (en) | 2019-03-22 |
| CN109505525B CN109505525B (en) | 2020-09-25 |
Family
ID=65756342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910015439.4A Expired - Fee Related CN109505525B (en) | 2019-01-08 | 2019-01-08 | Drill rod and drill bit shank sealing structure for anchor rod drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109505525B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111299971A (en) * | 2020-03-02 | 2020-06-19 | 贵州捷盛钻具股份有限公司 | Welding process of drill rod and drill shank |
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| CN2301582Y (en) * | 1997-07-16 | 1998-12-23 | 中外合资柳州欧维姆建筑机械有限公司 | Sealing device |
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| JP2012503117A (en) * | 2008-09-18 | 2012-02-02 | グレイ，ピーター，アンドリュー | System that combines injection, sealing, valve and flow path |
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| CN203978313U (en) * | 2014-08-18 | 2014-12-03 | 中煤科工集团重庆研究院有限公司 | Water under high pressure conveyer |
| CN204042263U (en) * | 2014-09-18 | 2014-12-24 | 平顶山市安泰华矿用安全设备制造有限公司 | A kind of to the connecting head of drilling rod water supply high service device |
| CN204540743U (en) * | 2014-12-23 | 2015-08-12 | 江苏牧羊控股有限公司 | A kind of quick detach nozzle |
| CN205100928U (en) * | 2015-10-26 | 2016-03-23 | 永城煤电控股集团有限公司 | Spy drain drilling sealing device |
| CN106249366A (en) * | 2016-07-28 | 2016-12-21 | 中航光电科技股份有限公司 | A kind of adapter with sealing protection function and sealing mechanism thereof |
| CN206753507U (en) * | 2017-05-08 | 2017-12-15 | 王代朋 | Mining impact drilling machine hydraulic pressure chip removal type drill steel connector |
-
2019
- 2019-01-08 CN CN201910015439.4A patent/CN109505525B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2301582Y (en) * | 1997-07-16 | 1998-12-23 | 中外合资柳州欧维姆建筑机械有限公司 | Sealing device |
| CN2385196Y (en) * | 1999-02-08 | 2000-06-28 | 孟忠敏 | Pressure sealing pipe-connecting structure |
| CN2477801Y (en) * | 2001-04-25 | 2002-02-20 | 陈树林 | Feeding thrust self-fastening sealing drill rod sleeve and drill rod of rockbolt drilling machine |
| CN201190540Y (en) * | 2008-03-24 | 2009-02-04 | 张建平 | Air-water dual-purpose inserting outburst-prevention drill rod |
| JP2012503117A (en) * | 2008-09-18 | 2012-02-02 | グレイ，ピーター，アンドリュー | System that combines injection, sealing, valve and flow path |
| CN201753777U (en) * | 2010-05-21 | 2011-03-02 | 上海冠龙阀门机械有限公司 | Hydraulic control valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111299971A (en) * | 2020-03-02 | 2020-06-19 | 贵州捷盛钻具股份有限公司 | Welding process of drill rod and drill shank |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109505525B (en) | 2020-09-25 |
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Effective date of registration: 20200904 Address after: No.6 Dahu Industrial Park, Xindian Town, Xinyi City, Xuzhou City, Jiangsu Province Applicant after: Xinyi Zhongzhen Electrical Technology Co.,Ltd. Address before: 236400 Luzhai Ji 537, Luzhai Town, Linquan County, Fuyang City, Anhui Province Applicant before: Wang Kanghua |
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Granted publication date: 20200925 |