CN202227998U - Core section rod of drill rod - Google Patents
Core section rod of drill rod Download PDFInfo
- Publication number
- CN202227998U CN202227998U CN2011203142735U CN201120314273U CN202227998U CN 202227998 U CN202227998 U CN 202227998U CN 2011203142735 U CN2011203142735 U CN 2011203142735U CN 201120314273 U CN201120314273 U CN 201120314273U CN 202227998 U CN202227998 U CN 202227998U
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- China
- Prior art keywords
- drilling rod
- square toes
- core pole
- connector
- fixedly connected
- 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.)
- Expired - Lifetime
Links
- 238000005553 drilling Methods 0.000 claims abstract description 78
- 210000003371 toe Anatomy 0.000 claims description 89
- 230000008878 coupling Effects 0.000 claims description 22
- 238000010168 coupling process Methods 0.000 claims description 22
- 238000005859 coupling reaction Methods 0.000 claims description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- 230000000694 effects Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The utility model discloses a core festival pole of drilling rod, the core festival pole of this drilling rod include body (10) and square head connecting piece (30), wherein, the core festival pole of drilling rod includes rotary joint (20), the upper end of rotary joint (20) with body (10) fixed connection, the lower extreme of rotary joint (20) with the upper end fixed connection of square head connecting piece (30). The utility model discloses use swing joint between rotary joint with square head connecting piece and body, damage because of kinking easily when can preventing square head connecting piece and body fixed connection effectively, realize the effect that square head connecting piece promoted the fracture part.
Description
Technical field
The utility model relates to the rotary drilling rig in the engineering machinery, particularly, relates to a kind of core pole of rotary drilling rig drilling rod.
Background technology
Rotary drilling rig is the efficient pore-forming equipment in the engineering machinery.The drilling rod of rotary drilling rig can bear huge interior external pressure, distortion, bending and vibration.But in actual engineering construction process, the drilling rod of rotary drilling rig still may stay in the boring part drilling rod because of multiple former thereby cause fracture.In order with breaking portion and drilling tool are at the bottom of the hole, to propose, drilling rod of the prior art normally installs iron chains additional in drilling rod.When drill rod breaking, when the outer pole of drilling rod ruptured, drilling rod can be mentioned by whole through iron chains in other words.
Drilling rod like the disclosed rotary drilling rig of Chinese patent CN 200975221Y.This drilling rod comprises the core pole; The core pole is provided with the outer pole of layer overlaps outward, and square toes are equipped with in core pole bottom, and fixedly cable of square toes is set in the pipe of core pole; A square toes fixedly end of cable are fixedly connected with square toes, and the other end is fixedly connected with the rod tube wall of core pole and the homalocephalus of core pole end of body.Wherein, square toes fixedly cable be metallic bond.In this patent; Since square toes fixedly cable and square toes, core pole body tube wall, core pole end of body the homalocephalus employing be to be fixedly connected, i.e. displacement between two parts of connection can not misplace, and can not produce offset deviation in other words; Like this, the fixed connection place of two parts is damaged easily.
And; Above-mentioned patent uses iron chains as connection, in the practice of construction process, following defectives possibly occur; Iron chains is often fallen flat: 1) this patent is a machine locking-type drilling rod; After fracture, need outside the release ability pull-out-hole, thereby when counter-rotating, cause the iron chains kink easily, cause damage; 2) because the pulling force that iron chains can bear is little, when bury drills takes place, need bigger pulling force with propositions such as drill bits, iron chains is broken easily, thereby can't be continued to use; 3) because iron chains length is short, if be created in the situation of core joint drilling rod upper end fracture, iron chains does not play the effect of expection, and the drilling rod lower end and the drilling tool of fracture are still stayed at the bottom of the hole.
More than all situation all put to no little inconvenience to construction, need the design of drilling rod be improved, thereby accomplish construction task effectively.
The utility model content
First purpose of the utility model provides a kind of core pole of drilling rod; Square toes connector and body are for flexibly connecting in the core pole of this drilling rod; Easily because of kink damages, make the square toes connector reach the effect that promotes breaking portion when preventing that the square toes connector is fixedly connected with body.
Second purpose of the utility model provides a kind of core pole of drilling rod, and in the core pole of this drilling rod, bigger pulling force can be born in the junction of square toes connector and square toes.
The 3rd purpose of the utility model provides a kind of core pole of drilling rod, when the core pole of drilling rod after the fracture of dangerouse cross-section place, still can boring be proposed breaking portion.
In order to realize above-mentioned first purpose; The utility model provides a kind of core pole of drilling rod; The core pole of this drilling rod comprises body and square toes connector, and wherein, the core pole of said drilling rod comprises swivel coupling; The upper end of said swivel coupling is fixedly connected with said body, and the lower end of said swivel coupling is fixedly connected with the upper end of said square toes connector.
Preferably, be provided with the elevator connector in the upper end of said body, the upper end of said swivel coupling is installed on the said body through said elevator connector.
Preferably, said swivel coupling comprises top connection and lower contact, and said top connection rotatably is connected with said lower contact.
Preferably; The side plate of said top connection is fixedly connected with the lower end of said elevator connector; The base plate fixing with side plate is provided with through hole; The rotating part of said lower contact passes said through hole, and is installed on the said base plate through the block piece that matches with said rotating part, and the fixed part that is connected with said rotating part lower end is fixedly connected with said square toes connector.
In order to realize above-mentioned second purpose, the core pole of said drilling rod comprises square toes, and the lower end of said square toes connector casts in said square toes.
Preferably, said square toes have boss, and said boss is fixedly connected with the bottom of said body.
In order to realize above-mentioned the 3rd purpose, said square toes connector extension is to the said square toes that are arranged in below the said boss.
Preferably, the core pole of said drilling rod comprises external key, and said external key is positioned at the outside of said body, and is fixedly connected with said body.
Preferably; The core pole of said drilling rod comprises spring stop collar and spring base; Said spring stop collar is installed in the said body outside and the position between said external key and said boss, and said spring base is installed in the outside of said spring stop collar, and is positioned at the top of said boss.
Preferably, said square toes connector is a flexible connecting member.
More preferably, said flexible connecting member is wire rope or iron chains.
Through using swivel coupling in the technique scheme with flexibly connecting between square toes connector and the body, in the time of can preventing effectively that the square toes connector is fixedly connected with body easily because of kink damages, the effect of realization square toes connector lifting breaking portion.In addition, square toes connector and square toes are fixed together through casting, have improved the field of load of junction between square toes connector and the square toes significantly.And the position under square toes connector extension to square toes dangerouse cross-section is sentenced makes the square toes connector after the square toes fracture, still can reach the effect that promotes breaking portion.
Other feature and advantage of the utility model will partly specify in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is the further understanding that is used to provide the utility model, and constitutes the part of manual, is used to explain the utility model with the following specific embodiment, but does not constitute the restriction to the utility model.In the accompanying drawings:
Fig. 1 is the sketch map that the core pole of the drilling rod of the utility model has partial cutaway;
Fig. 2 is the enlarged diagram of swivel coupling in the utility model.
Description of reference numerals
10 bodys, 11 elevator connectors
12 external keys, 13 spring stop collars
14 spring bases, 15 junction plates
21 top connections of 20 swivel couplings
21a side plate 21b base plate
22 lower contacts of 21c through hole
22a rotating part 22b block piece
22c fixed part 30 square toes connectors
40 square toes, 41 boss
The specific embodiment
Be elaborated below in conjunction with the specific embodiment of accompanying drawing to the utility model.Should be understood that the specific embodiment described herein only is used for explanation and explains the utility model, is not limited to the utility model.
In the utility model, under the situation of not doing opposite explanation, the noun of locality of use typically refers to like " upper and lower " and is directed to upper and lower in the accompanying drawing.
As shown in Figure 1, the core pole of drilling rod mainly comprises body 10 and square toes connector 30 in the utility model.In the prior art, square toes connector 30 is installed on the top or tube wall of body 10 through the mode (like welding, clamping, bolt connection etc.) of various fixed connections known in the field.Thereby behind drill rod breaking, the place of fixed connection is damaged because of 30 kinks of square toes connector easily, makes square toes connector 30 can't play the effect that breaking portion is proposed from boring.
Different with prior art, the core pole of drilling rod comprises swivel coupling 20 in the utility model.The upper end of swivel coupling 20 is fixedly connected with body 10, and the lower end of swivel coupling 20 is fixedly connected with the upper end of square toes connector 30.Like this.Utilize swivel coupling 20 can make the radial direction rotation of square toes connector 30, that is, be flexible connection between square toes connector 30 and the body 10 at drilling rod core pole.This movable connection method can prevent square toes connector 30 effectively from breaking off with the fixed connection place of body 10, thereby helps behind drill rod breaking, proposing breaking part.
As depicted in figs. 1 and 2, be provided with elevator connector 11 in the upper end of body 10.The upper end of this elevator connector 11 is fixedly connected with the elevator (not shown), and the lower end of elevator connector 11 is fixedly connected with body 10.It can be various fixed connection modes such as this area welding commonly used, bolt connection equally that said fixing connects.When drilling rod is flexible, can promote or put down drilling rod by elevator connector 11.
Particularly; Be welded with junction plate 15 in the upper end of body 10; Elevator connector 11 passes junction plate 15 and is fixed on this junction plate 15; The upper end of swivel coupling 20 is connected to the lower end of elevator connector 11, thereby is suspended in the body 10, can realize the flexible connection between square toes connector 30 and the body 10.
When drilling rod was holed work, square toes connector 30, swivel coupling 20 and elevator connector 11 together rotated with body 10, did not promptly have rotation relatively between square toes connector 30 and the body 10.Behind drill rod breaking, breaking portion is stayed in the boring.During the rotary lifting drilling rod, body 10 is with 11 rotations of elevator connector from boring.Because square toes connector 30 receives the restriction of breaking portion, keep motionless with breaking portion.At this moment, between square toes connector 30 and body 10, produce rotation relatively, and along with the lifting of elevator, breaking portion is suggested together with square toes connector 30.In the specific embodiment,, can avoid 30 fractures of square toes connector if square toes connector 30 is a rigid connector; If square toes connector 30 is a flexible connecting member, then can prevent 30 kinks of square toes connector.
As shown in Figure 2, swivel coupling 20 can be a multiple structure well known to those skilled in the art.In this embodiment, swivel coupling 20 comprises top connection 21 and lower contact 22, and top connection 21 rotatably is connected with lower contact 22.
Particularly, top connection 21 comprises base plate 21b, is installed in two side plate 21a and through hole 21c on the base plate 21b.Lower contact 22 comprises rotating part 22a and the fixed part 22c that is connected with rotating part 22a lower end.Side plate 21a is fixedly connected with the lower end of elevator connector 11.Connect for passing through bolt 23 in this embodiment.The base plate 21b fixing with side plate 21a is provided with through hole 21c; The rotating part 22a of lower contact 22 passes this through hole 21c; And be installed on the base plate 21b through the block piece 22b that matches with rotating part 22a, said fixed part 22c is fixedly connected with square toes connector 30.Can be to connect in the specific embodiment, but be not limited to this connected mode through bolt.
In addition, identical with existing various drilling rods, the core pole of drilling rod comprises square toes 40, is used for being connected with the drilling tool (not shown).Through these square toes, can the plus-pressure that digs moment of torsion and axial direction that revolve of the circumferencial direction of drilling rod be passed to drilling tool.
In this area, can making usually ins all sorts of ways links together square toes connector 30 and square toes 40, as through welding, uses bolt, suspension ring to connect or the like.But, behind drill rod breaking, need square toes connector 30 that square toes 40 and drilling tool are proposed simultaneously.And the stress place of concentrating often, the junction between square toes connector 30 and the square toes 40 is very easily broken.In order to make this junction can bear bigger pulling force, preferably, can the lower end of square toes connector 30 and square toes 40 be fixed together through casting.
Referring to Fig. 1, square toes 40 have boss 41, and boss 41 is fixedly connected (welding, casting etc.) with the bottom of body 10.As well-known to those skilled in the art, this boss 41 is mainly used in mounting spring stop collar 13.To specifically describe in the back about spring stop collar 13.
In the bore operation of reality, near boss 41 cross sections of square toes 40, usually be the dangerouse cross-section of drill rod breaking, in other words, the probability that drilling rod ruptures in this cross section is greater than other positions.Yet in the prior art, the bottom of square toes connector 30 normally is fixedly connected with the square toes 40 of boss more than 41.The result is, drilling rod is after the fracture of boss 41 sections, and square toes connector 30 can not play the effect that promotes breaking portion.Therefore, preferably, square toes connector 30 is extended to be arranged in the square toes 40 of boss below 41, like this, even drilling rod ruptures at the dangerouse cross-section place of square toes 40, square toes connector 30 also can propose the part of square toes 40 fractures.
In addition, the core pole of drilling rod comprises external key 12, and this external key 12 is positioned at the outside of body 10, and is fixedly connected with body 10.Particularly; Identical with prior art; Can be used for cooperating, thereby make the moment of torsion of drilling rod be passed to the core pole at core pole periphery three external keys 12 of interval setting (welding or other fixed forms) with 120 ° from outer pole with the interior keyway of the outer pole that is enclosed within core pole periphery.
Certainly; The core pole of drilling rod can also comprise spring stop collar 13 and spring base 14 in the utility model; Spring stop collar 13 mainly is installed in body 10 outsides and the position between external key 12 and boss 41; Spring base 14 is installed in the outside of spring stop collar 13, and is positioned at the top of boss 41.Spring stop collar 13 is mainly used in the spring (not shown) that cushioning effect has been installed with spring base 14, and through with outer pole on the block plate (not shown) cooperate, be used for the spacing of spring.
Preferably, in the utility model, square toes connector 30 is flexible connecting members, that is, use iron chains, wire rope etc. as square toes connector 30.Because flexible connecting member is compared rigid material and is had better toughness, also easy fracture not behind drill rod breaking.In addition, by contrast, the holding capacity of iron chains is broken not as wire rope easily, and therefore, the back-shaped wire rope of preferred use is as square toes connector 30, to produce best lifting effect in the utility model.
In addition, the core pole of the utility model can be used for polytype drilling rod, like friction-type pressurization drilling rod, machine locking-type pressurization drilling rod etc., but is not limited in the drilling rod of these types, use.
More than combine accompanying drawing to describe the preferred implementation of the utility model in detail; But; The utility model is not limited to the detail in the above-mentioned embodiment, in the technical conceive scope of the utility model, can carry out multiple simple variant to the technical scheme of the utility model.For example, can square toes connector 30 be changed into the connected mode of square toes 40 and also use swivel coupling 20 to be connected, can realize the technique effect of the utility model equally.Therefore, these simple variant all belong to the protection domain of the utility model.
Need to prove in addition; Each concrete technical characterictic described in the above-mentioned specific embodiment under reconcilable situation, can make up through any suitable manner; For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.
Claims (11)
1. the core pole of a drilling rod; The core pole of this drilling rod comprises body (10) and square toes connector (30); It is characterized in that; The core pole of said drilling rod comprises swivel coupling (20), and the upper end of said swivel coupling (20) is fixedly connected with said body (10), and the lower end of said swivel coupling (20) is fixedly connected with the upper end of said square toes connector (30).
2. the core pole of drilling rod according to claim 1 is characterized in that, is provided with elevator connector (11) in the upper end of said body (10), and the upper end of said swivel coupling (20) is installed on the said body (10) through said elevator connector (11).
3. the core pole of drilling rod according to claim 2 is characterized in that, said swivel coupling (20) comprises top connection (21) and lower contact (22), and said top connection (21) rotatably is connected with said lower contact (22).
4. the core pole of drilling rod according to claim 3; It is characterized in that; The side plate (21a) of said top connection (21) is fixedly connected with the lower end of said elevator connector (11); The base plate (21b) fixing with side plate (21a) is provided with through hole (21c); The rotating part (22a) of said lower contact (22) passes said through hole (21c), and is installed on the said base plate (21b) through the block piece (22b) that matches with said rotating part (22a), and the fixed part (22c) that is connected with said rotating part (22a) lower end is fixedly connected with said square toes connector (30).
5. the core pole of drilling rod according to claim 1 is characterized in that, the core pole of said drilling rod comprises square toes (40), and the lower end of said square toes connector (30) casts in said square toes (40).
6. the core pole of drilling rod according to claim 5 is characterized in that, said square toes (40) have boss (41), and said boss (41) is fixedly connected with the bottom of said body (10).
7. the core pole of drilling rod according to claim 6 is characterized in that, said square toes connector (30) extends to the said square toes (40) that are arranged in below the said boss (41).
8. the core pole of drilling rod according to claim 7 is characterized in that, the core pole of said drilling rod comprises external key (12), and said external key (12) is positioned at the outside of said body (10), and is fixedly connected with said body (10).
9. the core pole of drilling rod according to claim 8; It is characterized in that; The core pole of said drilling rod comprises spring stop collar (13) and spring base (14); Said spring stop collar (13) is installed in said body (10) outside and is positioned at the position between said external key (12) and the said boss (41), and said spring base (14) is installed in the outside of said spring stop collar (13), and is positioned at the top of said boss (41).
10. the core pole of drilling rod according to claim 1 is characterized in that, said square toes connector (30) is a flexible connecting member.
11. the core pole of drilling rod according to claim 10 is characterized in that, said flexible connecting member is wire rope or iron chains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203142735U CN202227998U (en) | 2011-08-25 | 2011-08-25 | Core section rod of drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203142735U CN202227998U (en) | 2011-08-25 | 2011-08-25 | Core section rod of drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202227998U true CN202227998U (en) | 2012-05-23 |
Family
ID=46078586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203142735U Expired - Lifetime CN202227998U (en) | 2011-08-25 | 2011-08-25 | Core section rod of drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202227998U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485728A (en) * | 2013-09-29 | 2014-01-01 | 常琦 | Rotary drilling rig drill rod with core section rod provided with anti-falling device |
| CN104612597A (en) * | 2014-12-10 | 2015-05-13 | 上海中联重科桩工机械有限公司 | Core section rod and rotary drilling rig drill rod with same |
| CN110593772A (en) * | 2019-10-23 | 2019-12-20 | 郑州富岛机械设备有限公司 | Novel multifunctional drill rod of rotary drilling rig |
-
2011
- 2011-08-25 CN CN2011203142735U patent/CN202227998U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485728A (en) * | 2013-09-29 | 2014-01-01 | 常琦 | Rotary drilling rig drill rod with core section rod provided with anti-falling device |
| CN104612597A (en) * | 2014-12-10 | 2015-05-13 | 上海中联重科桩工机械有限公司 | Core section rod and rotary drilling rig drill rod with same |
| CN110593772A (en) * | 2019-10-23 | 2019-12-20 | 郑州富岛机械设备有限公司 | Novel multifunctional drill rod of rotary drilling rig |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |