CN106351568A - Top drive type core drill displacement compensation device - Google Patents
Top drive type core drill displacement compensation device Download PDFInfo
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- CN106351568A CN106351568A CN201510744609.4A CN201510744609A CN106351568A CN 106351568 A CN106351568 A CN 106351568A CN 201510744609 A CN201510744609 A CN 201510744609A CN 106351568 A CN106351568 A CN 106351568A
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- China
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- unit head
- hydraulic jack
- top drive
- compensation device
- displacement compensation
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Abstract
A top drive type core drill displacement compensation device comprises hydraulic oil cylinders 5 and oil cylinder hangers 6. The oil cylinder hangers 6 are located on the two sides of a lifting hook 2. The two sides are each provided with one auxiliary hydraulic oil cylinder 5, and the lower ends of the hydraulic oil cylinders 5 are connected with a power head 1. In addition, two gears are arranged on input hydraulic pressure of the hydraulic oil cylinders 5, and two pressure values can be input to the hydraulic oil cylinders 5 in a day parting mode; in order to promote description, the two hydraulic pressure values are named as P1 and P2 respectively, P1 is slightly smaller than the whole weight G of the power head 1, and P2 is slightly larger than the whole weight G of the power head 1. Due to the fact that the technical scheme is adopted, compared with the prior art, the phenomenon that threads of a spindle and a drill rod are damaged when a top drive drill disassembles or assembles the drill rod can be effectively avoided.
Description
Technical field
A kind of the invention belongs to geological prospecting apparatus field, it particularly relates to top drive formula rock-core borer displacement compensation device.
Background technology
The structure of the common hanging mechanism (as shown in Figure 1) of existing top drive drilling unit head is: unit head 1 upper end hangs on suspension hook 2, and the main shaft 3 of lower end is connected (as shown in Figure 2) with drilling rod 4 by taper thread.During dress drilling rod, namely by figure (a) to figure (b), the top of main shaft 3 have dropped a segment distance m (drilling rod has been drilled into ground end and maintained static), and that is, main shaft 3 and drilling rod 4 are connected by being separated into, and unit head 1 must decline a segment distance m；In turn, when tearing drilling rod open, that is, arrived by figure (b) and scheme (a), main shaft 3 and drilling rod 4 are separated by being connected to, and unit head 1 must rise a segment distance m.
In the common hanging mechanism of top drive drilling unit head, for realizing main shaft 3 with drilling rod 4 by released state to connection status, the segment distance m that unit head 1 must decline, this decline process can only be gradually to unclamp elevator to lean on gravity to decline by unit head 1；Main shaft 3 rotation makes the outer cone thread of main shaft and the inside tapered thread of drilling rod 4 be attached, and the connection procedure of taper thread can make main shaft 3 (i.e. unit head 1 is overall) decline, and distance is m.Two decrease speeds can not possibly control to definitely consistent, fixed because drilling rod 4 has been drilled into ground end, if now live spindle 3 makes speed that it declines be more than to unclamp the speed that elevator makes unit head 1 decline, suspension hook 2 then can form one larger pulling force upwards to unit head 1, if completing the connection of main shaft 3 and drilling rod 4 under these conditions, main shaft 3 and the threaded portion of drilling rod 4 can be made to be easy to damage, bring great trouble to whole drilling project.In turn, for realizing main shaft 3 with drilling rod 4 by being already connected to separate, unit head 1 must rise a segment distance m；Elevator haul unit head 1 rising speed and the release process of taper thread can make the speed that main shaft 3 (i.e. unit head 1 is overall) rises be also impossible to control arrive definitely consistent, if now live spindle 3 makes its speed rising be less than the speed that tension elevator makes unit head 1 rise, suspension hook 2 also can form one larger pulling force upwards to unit head 1, if completing main shaft 3 under these conditions to separate with drilling rod 4, the threaded portion of main shaft 3 and drilling rod 4 equally can be damaged.
Content of the invention
For solving the problems, such as in background technology, thisInventionProvide a kind of top drive formula rock-core borer displacement compensation device.
ThisInventionTechnical scheme be: a kind of top drive formula rock-core borer displacement compensation device, including hydraulic jack and oil cylinder hangers；Oil cylinder hangers is located at the both sides of suspension hook, and respectively equipped with a secondary hydraulic jack 5, the lower end of hydraulic jack is connected with unit head for both sides.
Improve as a kind of, the input hydraulic pressure of described hydraulic jack is provided with two gears, you can so that hydraulic jack is inputted at times with the pressure of two kinds of different numerical value.
ThisInventionFurther technical scheme is: two default input hydraulic pressure values of hydraulic jack are respectively p1 and p2, and p1 is slightly less than overall weight g of unit head, and p2 is slightly larger than overall weight g of unit head.
Due to employing technique scheme, compared with prior art, originallyInventionTop drive drilling can be prevented effectively from when dismounting drilling rod, the screw thread of main shaft and drilling rod is caused to damage.
Brief description
Figure 1Structural representation for prior artFigure；
Figure 2ForFigure 1The partial enlargement structural representation of middle a partFigure；
Figure 3For thisInventionStructural representationFigure；
Figure 4ForFigure 3Left viewFigure；
Figure 5For thisInventionUse state referenceFigure.
Figure 2In,Figure (A) represent that main shaft 3 is just put off till with drilling rod 4, be in not-connected status；Figure (B) represent that main shaft 3 and drilling rod 4 are connection status.
Specific embodiment
Embodiment
As Figure 3、Figure 4WithFigure 5Shown, a kind of top drive formula rock-core borer displacement compensation device, including hydraulic jack 5 and oil cylinder hangers 6；Oil cylinder hangers 6 is located at the both sides of suspension hook 2, and respectively equipped with a secondary hydraulic jack 5, the lower end of hydraulic jack 5 is connected with unit head 1 for both sides.In addition, the input hydraulic pressure of hydraulic jack 5 is provided with two gears, you can so that hydraulic jack 5 is inputted at times with the pressure of two kinds of different numerical value, for convenience of description, both input hydraulic pressures are called p1 and p2 respectively, and p1 is slightly less than overall weight g of unit head 1, and p2 is slightly larger than overall weight g of unit head 1.
When top drive formula rock-core borer displacement compensation device is in off working state, hydraulic jack 5 does not have input hydraulic pressure, only leans on suspension hook 2 to hang up unit head 1.During dress drilling rod, the default hydraulic pressure of p1 is injected toward in hydraulic jack 5, and p1 is slightly less than overall weight g of unit head 1, now the stressing conditions on unit head 1 vertical direction are: unit head 1 is subject to gravity g straight down, power f1 in power p1 straight up that hydraulic jack 5 provides, and the vertical direction of suspension hook 2 offer, and g=p1+f1, i.e. unit head 1 and the relative position of suspension hook 2 temporarily do not change, and hydraulic jack 5 be in elongation state (As Figure 4)；Gradually unclamp elevator, main shaft 3 is gradually reduced, when main shaft 3 pushes up drilling rod 4, now main shaft 3 can be subject to power f2 upwards to it for the drilling rod 4, as f2+p1 > g when, hydraulic jack 5 starts to shrink at, unit head 1 move upwards with respect to suspension hook 2 so that suspension hook 2 separate with unit head 1 a segment distance n (As Figure 5)；When n is more thanFigure 2Shown in apart from m when, stop elevator, live spindle 3, so that main shaft 3 is attached with drilling rod 4；Due to Ullage n > m, in the connection procedure of main shaft 3 and drilling rod 4, hydraulic jack 5 then can extend to compensate this section of displacement difference m, and hydraulic pressure p1 makes the contractility that hydraulic jack 5 is formed only be slightly less than the overall weight of unit head 1, therefore unit head 1 is overall will not can cause to the screw thread of main shaft and drilling rod to damage with any speed dropping distance m.
In the same manner, in dismounting drilling rod, the default hydraulic pressure of p2 is injected toward in hydraulic jack 5, and p2 is slightly larger than overall weight g of unit head 1, now main shaft 3 and drilling rod 4 are in connection status, stressing conditions on unit head 1 vertical direction are: unit head 1 pulling force f3 straight down to it by gravity g and drilling rod 4 straight down, power p2 straight up that hydraulic jack 5 provides, and p2=g+f3, unit head 1 in the vertical direction stress balance, i.e. unit head 1 and the relative position of suspension hook 2 temporarily do not change, and hydraulic jack 5 be in elongation state (As Figure 4)；Now reversely rotate main shaft 3, so that main shaft 3 is separated with drilling rod 4, main shaft 3 and unit head 1 are gradually increasing, and hydraulic jack 5 shrinks therewith, and unit head 1 is lifted up apart from m；When main shaft 3 is thoroughly separated with drilling rod 4, hydraulic jack 5 can haul unit head 1 and be retracted to top, because hydraulic pressure p2 makes the contractility that hydraulic jack 5 is formed be only slightly larger than the overall weight of unit head 1, therefore unit head 1 is overall also can will not cause any damage to the screw thread of main shaft 3 and drilling rod 4 with any speed climb m.
ThisInventionIt is not limited to above-mentioned preferred implementation, anyone should learn at thisInventionEnlightenment under the structure change made, every with thisInventionHave same or like as technical scheme, belong to thisInventionProtection domain.
Claims (3)
1. a kind of top drive formula rock-core borer displacement compensation device it is characterised in that: include hydraulic jack and
Oil cylinder hangers；Oil cylinder hangers is located at the both sides of suspension hook, and both sides are respectively equipped with a secondary hydraulic jack, hydraulic jack
Lower end with unit head be connected.
2. according to claim 1 top drive formula rock-core borer displacement compensation device it is characterised in that:
The input hydraulic pressure of described hydraulic jack is provided with two gears, you can to input two kinds at times to hydraulic jack
The pressure of different numerical value.
3. according to claim 2 top drive formula rock-core borer displacement compensation device it is characterised in that:
Two default input hydraulic pressure values of described hydraulic jack are respectively p1 and p2, and p1 is slightly less than the whole of unit head
Body weight g, p2 is slightly larger than overall weight g of unit head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510744609.4A CN106351568A (en) | 2015-11-05 | 2015-11-05 | Top drive type core drill displacement compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510744609.4A CN106351568A (en) | 2015-11-05 | 2015-11-05 | Top drive type core drill displacement compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106351568A true CN106351568A (en) | 2017-01-25 |
Family
ID=57842858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510744609.4A Pending CN106351568A (en) | 2015-11-05 | 2015-11-05 | Top drive type core drill displacement compensation device |
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| Country | Link |
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| CN (1) | CN106351568A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1961913A1 (en) * | 2004-06-07 | 2008-08-27 | National Oilwell Varco, L.P. | Top drive |
| CN201198743Y (en) * | 2008-08-11 | 2009-02-25 | 深圳市钻通工程机械股份有限公司 | Non-excavating drill power head floating mechanism |
| CN201351465Y (en) * | 2009-01-20 | 2009-11-25 | 郑州海来能源科技有限公司 | Fixing device of floating oil cylinder base on top drive lifting ring |
| CN201695972U (en) * | 2010-06-17 | 2011-01-05 | 廊坊天和众邦勘探设备有限公司 | Drill power head floating structure |
| CN102022106A (en) * | 2010-11-04 | 2011-04-20 | 中国石油天然气集团公司 | Drill stem connector automatic screwing control device and method |
| CN102454362A (en) * | 2011-12-28 | 2012-05-16 | 江苏谷登工程机械装备有限公司 | Gear box floating structure of drilling machine power head |
| CN103643890A (en) * | 2013-12-20 | 2014-03-19 | 黄永治 | Top driving equipment |
| CN203756055U (en) * | 2013-12-30 | 2014-08-06 | 天津探矿机械总厂 | Floating device for power head drilling rig |
| CN204386453U (en) * | 2014-12-18 | 2015-06-10 | 天津百利机械装备集团有限公司中央研究院 | The weight compensating system of drill power head |
-
2015
- 2015-11-05 CN CN201510744609.4A patent/CN106351568A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1961913A1 (en) * | 2004-06-07 | 2008-08-27 | National Oilwell Varco, L.P. | Top drive |
| CN201198743Y (en) * | 2008-08-11 | 2009-02-25 | 深圳市钻通工程机械股份有限公司 | Non-excavating drill power head floating mechanism |
| CN201351465Y (en) * | 2009-01-20 | 2009-11-25 | 郑州海来能源科技有限公司 | Fixing device of floating oil cylinder base on top drive lifting ring |
| CN201695972U (en) * | 2010-06-17 | 2011-01-05 | 廊坊天和众邦勘探设备有限公司 | Drill power head floating structure |
| CN102022106A (en) * | 2010-11-04 | 2011-04-20 | 中国石油天然气集团公司 | Drill stem connector automatic screwing control device and method |
| CN102454362A (en) * | 2011-12-28 | 2012-05-16 | 江苏谷登工程机械装备有限公司 | Gear box floating structure of drilling machine power head |
| CN103643890A (en) * | 2013-12-20 | 2014-03-19 | 黄永治 | Top driving equipment |
| CN203756055U (en) * | 2013-12-30 | 2014-08-06 | 天津探矿机械总厂 | Floating device for power head drilling rig |
| CN204386453U (en) * | 2014-12-18 | 2015-06-10 | 天津百利机械装备集团有限公司中央研究院 | The weight compensating system of drill power head |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20170125 |