CN209430124U - A kind of built-in outer cutting high-pressure-resistant sealed drilling rod of big orifice sealing - Google Patents
A kind of built-in outer cutting high-pressure-resistant sealed drilling rod of big orifice sealing Download PDFInfo
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- CN209430124U CN209430124U CN201920069794.5U CN201920069794U CN209430124U CN 209430124 U CN209430124 U CN 209430124U CN 201920069794 U CN201920069794 U CN 201920069794U CN 209430124 U CN209430124 U CN 209430124U
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- drilling rod
- cylindrical surface
- pin end
- external cylindrical
- hole
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Abstract
The utility model discloses a kind of big orifices to seal built-in outer cutting high-pressure-resistant sealed drilling rod, including pin end, drilling rod ontology and sealing ring；The pin end is scheduled on one end of drilling rod ontology；The pin end includes outer cone thread, external cylindrical surface and nose cone；The outer cone thread is fixed on the outside of external cylindrical surface；The nose cone is fixed on the front end of external cylindrical surface；The inside of the external cylindrical surface offers big orifice inner hole；The drilling rod outer body offers spiral groove, and inside offers through-hole, and offers seal groove inside one end far from pin end；The sealing ring is fixed in seal groove；The utility model sealing ring is build-in module, extends service life, enhances its durability；The taper design of the pin end conical surface it is smaller so that the latus rectum of water hole is bigger, increases water flow and substantially increase gas drainage construction effect and efficiency；There is spiral groove on drilling rod external cylindrical surface, improves the deslagging effect of drilling rod.
Description
Technical field
The utility model relates to drill pipe art, specially a kind of big orifice seals built-in outer cutting high-pressure-resistant sealed
Drilling rod.
Background technique
In process of coal mining, in order to guarantee safe working, need to beat gas drainage hole, it usually needs more drilling rods connect
It connects to reach the depth of gas drainage hole requirement, drilling rod is across drilling machine mechanomotive force head, and front end connects drill bit or waterpower cutting dress
It sets, rear end connects high pressure water pigtail.When work, by drilling rod by drilling machine revolving speed and torque transfer to drill bit, meanwhile, into high pressure water
The high pressure water of pigtail flows to drill bit by drilling rod, carries out cooling, deslagging or cuts coal operation.At work due to drilling rod, it bears
External and internal load is more complicated, has the torque acted on two ends of drill screw thread, and have drilling machine axially to apply along drilling rod
It draws, pressure, there are also the compression that drilling rod internal high pressure water generates, the bending stress etc. also generated by geological conditions difference,
So that drilling rod fractures, thread off, bending, the failure modes such as tearing.Although what is generally used at present has a sealing drilling rod, Three-edged drill stem,
Round bur bar, shallow auger stem, outer circle cutting drilling rod, but there is also different problems, two kinds of common sealing drilling rods: one is
Pin end fore end outer circumference installation sealing ring is sealed, and is typically due to underground working bad environments, and sealing ring is easily lost, and uses
Service life is short, is not durable；Another kind is to be terminated with the conical surface before pin end, and sealing ring is mounted on female connector, solves above-mentioned sealing
Circle easily loss problem, but since the tapered portion of female connector is unable to measure, processing needs special equipment to be operated, and it is more complex,
And it is long in time limit, it is unable to satisfy supply requirement, and both drilling rods are in the case where deep formation gas pressure is big, drilling rod intensity
Deficiency, often hair kills drilling rod when work, causes the accident that drilling rod is lost, drilling fails.Row when Three-edged drill stem is drilled
Slag effect is good, but its intensity is low, and trigone bores phenomenon once pressure occurs, and is reluctant.Round bur bar deslagging is difficult, at present
It is rarely employed.Shallow auger stem shank diameter is small, causes both ends bond diameter small, Yi Fasheng slide fastener etc..Outer cutting drilling rod sealing
Effect is poor, is not able to satisfy the needs of current coal mine new process (hydraulic flushing in hole).
In the prior art, two ends of drill joint screw thread taper is big, causes center limbers limited diameter, logical from drilling rod inside
The water flow crossed is also limited, and is difficult to leakage often occur now in junction due to drilling rod water flow inside when carrying out hydraulic flushing in hole
As not only resulting in the loss of water flow, also reducing hydraulic pressure, to influence the effect that hydraulic flushing in hole draws out methane.Consumption is a large amount of
Manpower and material resources are unfavorable for the requirement of coal mine high-efficiency mining so that tunnelling is slow.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, it is high pressure resistant close to provide a kind of built-in outer cutting of big orifice sealing for the utility model
It is poor and small by water flow to solve low previous drilling rod drilling rod intensity, poor sealing performance, difficult processing, deslagging performance for seal drill rod
The problem of.
(2) technical solution
To achieve the above object, the utility model provides the following technical solutions: a kind of built-in outer cutting of big orifice sealing
High-pressure-resistant sealed drilling rod, including pin end, drilling rod ontology and sealing ring；The pin end is scheduled on one end of drilling rod ontology；It is described
Pin end includes outer cone thread, external cylindrical surface and nose cone；The outer cone thread is fixed on the outside of external cylindrical surface；Before described
End cone body is fixed on the front end of external cylindrical surface；The inside of the external cylindrical surface offers big orifice inner hole；
The drilling rod outer body offers spiral groove, and inside offers through-hole, and in one end far from pin end
Portion offers seal groove；The sealing ring is fixed in seal groove.
Further, the diameter of the big orifice inner hole is less than the diameter of through-hole.
Further, the big orifice inner hole and through-hole communicate.
Further, the pin end and the connection relationship of drilling rod ontology are to be fixedly connected or integrally formed one kind.
(3) beneficial effect
The utility model provides a kind of built-in outer cutting high-pressure-resistant sealed drilling rod of big orifice sealing, has following beneficial
Effect:
1, the drilling rod of the utility model is cooperated using built-in sealing ring and cylindrical surface, and outer cone thread is screwed with inside tapered thread
Afterwards, pin end front end cylindrical surface is bonded with the sealing ring in axis hole, can reach the effect of sealing high pressure water.Sealing ring is built-in mould
Formula, avoid because sealing ring it is external caused by it is easy to wear the occurrence of, extend service life, enhance its durability.
2, the taper design of the pin end conical surface is smaller, so that the latus rectum of water hole is bigger, increases water flow, convenient for beating
Brill and hydraulic flushing in hole operation, substantially increase gas drainage construction effect and efficiency.
3, the cylindrical surface of pin end front end and the cylindrical surface inside female connector easily measure, and production is simple, process short time limit.
4, drilling rod ontology uses heavy wall geology tube material, and intensity is high, good toughness, can transmit great torque without
It destroys.
5, there is spiral groove on drilling rod external cylindrical surface, improve the deslagging effect of drilling rod, reduce the probability of pressure brill accident, protect
The success rate for having demonstrate,proved drilling, saves a large amount of manpower and material resources, improves work efficiency.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Appended drawing reference in figure are as follows: 1. pin ends；101. outer cone thread；102. external cylindrical surface；103. nose cone；104.
Big orifice inner hole；2. drilling rod ontology；201. spiral groove；202. inside tapered thread；203. through-hole；204. seal groove；3. sealing
Circle.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Refering to Figure 1, the utility model provides a kind of embodiment: a kind of built-in outer resistance to height of cutting of big orifice sealing
Pressure seal drill rod, including pin end 1, drilling rod ontology 2 and sealing ring 3；The pin end 1 is scheduled on one end of drilling rod ontology 2；It is described
Pin end 1 includes outer cone thread 101, external cylindrical surface 102 and nose cone 103；The outer cone thread 101 is fixed on external cylindrical surface
102 outside；The nose cone 103 is fixed on the front end of external cylindrical surface 102；The inside of the external cylindrical surface 102 offers
Big orifice inner hole 104；
Spiral groove 201 is offered on the outside of the drilling rod ontology 2, inside offers through-hole 203, and far from pin end 1
One end inside offer seal groove 204；The sealing ring 3 is fixed in seal groove 204；The big orifice inner hole 104
Diameter be less than through-hole 203 diameter；The big orifice inner hole 104 and through-hole 203 communicate；The pin end 1 and drilling rod ontology 2
Connection relationship be to be fixedly connected or integrally formed one kind.
Working principle:
For the bonding strength for guaranteeing drilling rod, the taper of outer cone thread 101 is smaller, convenient for the connection between drilling rod, and can protect
The diameter for demonstrate,proving big orifice inner hole 104 is sufficiently large；It is provided with clock wise spirals cutting 201 in 2 outer circle of drilling rod ontology, in drilling rod work
When making, the spiral groove 2 on high-speed rotating drilling rod can push slack coal external dynamic to drilling, improve hole drilling deslagging effect；It bores
Bar body 2 uses high-quality geology tube material, and intensity is high, good toughness, has excellent Memorability, though external force makes its deformation, but
It can restore to the original state at once after external force disappearance；2 other end inner hole of drilling rod ontology is equipped with inside tapered thread 202, between drilling rod
Connection, is additionally provided with seal groove 204；Sealing ring 3 is mounted in seal groove 204, will not be caused because colliding in underground coal mine
Sealing ring damage, it is ensured that the reliability of sealing ring；Through-hole 203 is equipped with inside drilling rod ontology 2 to be used for big orifice inner hole 104
The circulation of compressed air.
When work, any two drilling rods link together after being screwed by outer cone thread 101 with inside tapered thread 202, outer circle
Cylinder 102 is matched with through-hole 203, and sealing ring, which is tightly covered, plays sealing function on external cylindrical surface 102；Using circle at sealing
Cylinder cooperation, wherein work difficulty is small, and conventional equipment is i.e. processable, and convenient for measurement, quality be can effectively ensure that；Outer cone thread 101
It is heat-treated before processing with inside tapered thread 202, intensity is high, reliable in quality.
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.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of big orifice seals built-in outer cutting high-pressure-resistant sealed drilling rod, including pin end (1), drilling rod ontology (2) and close
Seal (3)；It is characterized by: the pin end (1) is scheduled on one end of drilling rod ontology (2)；The pin end (1) includes outer cone spiral shell
Line (101), external cylindrical surface (102) and nose cone (103)；The outer cone thread (101) is fixed on the outer of external cylindrical surface (102)
Side；The nose cone (103) is fixed on the front end of external cylindrical surface (102)；The inside of the external cylindrical surface (102) offers greatly
Latus rectum inner hole (104)；
It is offered spiral groove (201) on the outside of the drilling rod ontology (2), inside offers through-hole (203), and far from pin end
(1) seal groove (204) are offered inside one end；The sealing ring (3) is fixed in seal groove (204).
2. a kind of big orifice according to claim 1 seals built-in outer cutting high-pressure-resistant sealed drilling rod, it is characterised in that:
The diameter of the big orifice inner hole (104) is less than the diameter of through-hole (203).
3. a kind of big orifice according to claim 1 seals built-in outer cutting high-pressure-resistant sealed drilling rod, it is characterised in that:
The big orifice inner hole (104) and through-hole (203) communicate.
4. a kind of big orifice according to claim 1 seals built-in outer cutting high-pressure-resistant sealed drilling rod, it is characterised in that:
The pin end (1) is fixedly connected with the connection relationship of drilling rod ontology (2) or integrally formed one kind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920069794.5U CN209430124U (en) | 2019-01-16 | 2019-01-16 | A kind of built-in outer cutting high-pressure-resistant sealed drilling rod of big orifice sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920069794.5U CN209430124U (en) | 2019-01-16 | 2019-01-16 | A kind of built-in outer cutting high-pressure-resistant sealed drilling rod of big orifice sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209430124U true CN209430124U (en) | 2019-09-24 |
Family
ID=67976547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920069794.5U Expired - Fee Related CN209430124U (en) | 2019-01-16 | 2019-01-16 | A kind of built-in outer cutting high-pressure-resistant sealed drilling rod of big orifice sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209430124U (en) |
-
2019
- 2019-01-16 CN CN201920069794.5U patent/CN209430124U/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: 20190924 Termination date: 20220116 |