CN103993841B - A kind of suspension ring leaning device - Google Patents
A kind of suspension ring leaning device Download PDFInfo
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- CN103993841B CN103993841B CN201410260256.6A CN201410260256A CN103993841B CN 103993841 B CN103993841 B CN 103993841B CN 201410260256 A CN201410260256 A CN 201410260256A CN 103993841 B CN103993841 B CN 103993841B
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- suspension ring
- anchor ear
- leaning device
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Abstract
The invention discloses a kind of suspension ring leaning device, belong to oil-well rig equipment technical field.Suspension ring leaning device of the present invention, comprise suspension ring and drive unit, suspension ring upper end thereof drives on body on top, the jointed shaft that drive unit drives suspension ring to drive body around suspension ring and top rotates, suspension ring leaning device also comprises support, pedestal upper end drives on body by the first hinge on top, and pedestal lower end is connected with anchor ear; Anchor ear comprises rolling wheel support and is arranged at the roller in rolling wheel support; Suspension ring through anchor ear and suspension ring lean forward or hypsokinesis time, suspension ring are through the part of anchor ear and roller contact; Drive unit driving arm rotates around the first bearing pin, and holder pivots also drives suspension ring to rotate by anchor ear.Suspension ring leaning device of the present invention, reduce the requirement of drive unit, equipment investment is few; Meanwhile, roller contacts with suspension ring, and equipment safety is good, installation workload is little, and an anchor ear can be applicable to the suspension ring of several different-diameter, expands the range of application of device.
Description
Technical field
The present invention relates to a kind of suspension ring leaning device, belong to oil-well rig equipment technical field.
Background technology
The standard device becoming oil-well rig is driven on top, and the automation pipe treatment system of outfit is driven on top, greatly reduces the labour intensity of workman.A part during suspension ring leaning device drives as top, plays an important role.Can lean forward and arrive mouse hole crawl drilling rod, and help fine finishining of leaning forward when quadruple board platform captures drilling rod, substantially reduces the labour intensity of workman.
In prior art, the suspension ring leaning device that top is driven as shown in Figure 5, Figure 6, comprise suspension ring, suspension ring deck and oil cylinder, the upper end of suspension ring and oil cylinder is hinged on top respectively and drives on body, suspension ring deck is fixedly mounted on suspension ring, the lower end of oil cylinder is tailpiece of the piston rod, and tailpiece of the piston rod and the suspension ring deck of oil cylinder are hinged.During the work of suspension ring leaning device, the tailpiece of the piston rod of oil cylinder stretches out or retracts and drives the motion of suspension ring deck, drives suspension ring to lean forward or hypsokinesis while the motion of suspension ring deck.
The suspension ring leaning device of said structure, the angle of oil cylinder and suspension ring is little, suspension ring lean forward or hypsokinesis process in, the component that suspension ring are rotated that the thrust of oil cylinder produces is very little, and most of power is the direction along suspension ring, suspension ring deck easily slides on suspension ring, causes suspension ring to rotate; Meanwhile, suspension ring deck is fixedly mounted on a certain permanent position on suspension ring, and the arm of force that hydraulic oil cylinder driving suspension ring rotate is constant, and the power that oil cylinder orders about suspension ring rotation increases gradually, and when suspension ring rotational angle increases, oil cylinder is easily damaged; Further, above-mentioned suspension ring leaning device, suspension ring deck is fixed on a certain position on suspension ring, suspension ring lean forward or hypsokinesis process in, the stroke of oil cylinder is large, suspension ring movable end captures weight quality little (being generally no more than 1t), in case stop loss bad oil cylinder, so just cannot capture heavier drill collar, to meet above requirement, then need very large oil cylinder, install, safeguard very inconvenient; Meanwhile, the suspension ring leaning device of said structure, suspension ring can only rotate along a direction, and a suspension ring leaning device can only apply the elevator with a kind of size, and the range of application of suspension ring leaning device is narrow.
Summary of the invention
The object of the invention is to overcome suspension ring leaning device suspension ring existing in prior art and rotate difficulty, weight cannot be captured and the easy above-mentioned deficiency damaging oil cylinder, there is provided a kind of suspension ring leaning device, suspension ring leaning device of the present invention reduces the burden of oil cylinder, reduces equipment investment; Meanwhile, the safety of suspension ring leaning device is good, installation workload is little.
Further, a further object of the present invention is also to provide a kind of suspension ring leaning device of elevator that can be used for different model, different size.
In order to realize foregoing invention object, the invention provides following technical scheme:
A kind of suspension ring leaning device, comprise suspension ring and drive unit, the upper end thereof of described suspension ring drives on body on top, the jointed shaft that described drive unit drives described suspension ring to drive body around suspension ring and top rotates, described suspension ring leaning device also comprises support, the upper end of described support is driven on body by the first hinge on top, and the lower end of described support is connected with anchor ear; Described anchor ear comprises rolling wheel support and is arranged at the roller in rolling wheel support; Described suspension ring through described anchor ear, and described suspension ring lean forward or hypsokinesis time, described suspension ring are through the part of described anchor ear and described roller contact; Described drive unit drives described support to rotate around described first bearing pin, and described support drives described suspension ring to rotate by described anchor ear.The suspension ring leaning device of said structure, described drive unit drives described suspension ring to rotate by described anchor ear, described anchor ear and described suspension ring pass through roller contact, the contact surface of described roller and described suspension ring can be plane, also can be curved surface, suspension ring lean forward or hypsokinesis time, described roller rotates around the axial line of roller and drives anchor ear to move along described suspension ring.This connected mode has following advantage: (1) suspension ring lean forward in process, anchor ear can glide by relative suspension ring, the distance that the relative suspension ring of anchor ear drive the jointed shaft of body with top increases, the component arm of force that anchor ear drives suspension ring to rotate increases, reduce drive unit burden, drive unit drives suspension ring to lean forward and more easily realizes; (2) described suspension ring are through the part of anchor ear and the roller contact in described anchor ear, suspension ring can be avoided to lean forward or hypsokinesis process in anchor ear relative suspension ring generation jam cause suspension ring to work, equipment safety is good; (3) promote suspension ring by the roller in anchor ear to lean forward or hypsokinesis, suspension ring lean forward or in back recline, suspension ring can only with the roller contact it being had to force, therefore, the anchor ear of said structure can be applicable to the suspension ring that any diameter is less than two roller spacings, need not join the suspension ring deck of different size, expand the range of application of suspension ring leaning device for the suspension ring of different-diameter, decrease drilling well operation, improve efficiency of construction; (4) anchor ear is along suspension ring relative sliding, eliminates traditional structure once after suspension ring deck pine, also must clamp, attended operation is convenient again, installation workload is little.Suspension ring leaning device of the present invention, reduce the requirement of drive unit, equipment investment is few; Meanwhile, roller contacts with suspension ring, and equipment safety is good, installation workload is little.
As preferred version of the present invention, described roller is two, and described two rollers are set in parallel in described rolling wheel support.Described suspension ring lean forward or in back recline, respectively only with a roller contact, in anchor ear, arrange two parallel rollers, hooping structure is simple, easy for installation, practical.
As preferred version of the present invention, the contact surface of described roller and described suspension ring is curved surface.The contact surface of roller and suspension ring is curved surface, and suspension ring lean forward or in back recline, suspension ring lateral surface and roller curved face contact, the relative anchor ear of suspension ring and roller not easily shake, and suspension ring lean forward steady with back recline, and equipment safety improves.
As preferred version of the present invention, between described support and described anchor ear, be provided with connecting rod; The upper end of described connecting rod is hinged by the lower end of the second bearing pin and described support, and described connecting rod can rotate around described second bearing pin, and the lower end of described connecting rod is connected with described anchor ear; The axial line of described first bearing pin and the axial line of described second bearing pin have an angle.The support of said structure and anchor ear annexation, connecting rod can with the plane of holder pivots plane orthogonal in have rotation, such suspension ring both can lean forward or hypsokinesis, can lean forward with it or the Plane Rotation of hypsokinesis plane orthogonal again, suspension ring lower end is flexibly movable, and application is convenient; Further, the lower end spacing of two parallel suspension ring can be regulated by the rotation of described connecting rod around described second bearing pin, suspension ring go for the elevator of different model, different size, expand the range of application of suspension ring leaning device, simultaneously can also simplify different model, operation that the elevator of different size switches mutually, improve drilling efficiency.
As preferred version of the present invention, the angle of the axial line of described first bearing pin and the axial line of described second bearing pin is 90 °.When the axial line of described first bearing pin and the axial line of described second bearing pin are mutually vertical, described lever regulated suspension ring lean forward with suspension ring or the rotation of vertical plane of plane of hypsokinesis time, the motion path of connecting rod is minimum, and device operates and the most easily realizes.
As preferred version of the present invention, described anchor ear and described connecting rod are by the 3rd hinge, and described 3rd bearing pin is fixedly installed on outside described rolling wheel support, and the axial line of described 3rd bearing pin and the axial line of described second bearing pin are parallel to each other.The anchor ear of said structure and connecting rod annexation, connecting rod to rotate and in the process driving suspension ring to rotate around the second bearing pin, connecting rod can rotate around the 3rd bearing pin simultaneously, can avoid in link rotatable process, driving anchor ear to have the rotation of equidirectional, anchor ear and suspension ring annexation constant, suspension ring and anchor ear can be avoided to block, anchor ear can also be avoided to be damaged simultaneously, the safety of device improves.
As preferred version of the present invention, the quantity of described connecting rod is two, and two connecting rod lower ends are all connected with described anchor ear.When the quantity of described connecting rod is two, two anchor ears work drive two suspension ring motions simultaneously, and two suspension ring coordinate handling elevators, and suspension ring leaning device structure is simple, and device flexibility is good.
As preferred version of the present invention, described drive unit is oil cylinder, and the bottom of described oil cylinder is hinged on described top and drives on body, and the piston rod of described oil cylinder is on the bracket hinged.During cylinder efficient, the jointed shaft driving support to drive body around support and top by telescopic oil cylinder piston rod rotates, and the jointed shaft driving suspension ring to drive body around suspension ring and top rotates, and device is simple to operate, can extensively promote the use of.
As preferred version of the present invention, when suspension ring are in vertical state, described oil cylinder is mutually vertical with described support.The oil cylinder of said structure and the annexation of support, suspension ring lean forward or hypsokinesis time, oil cylinder stretch drive suspension ring to lean forward or the rotational component of hypsokinesis large, suspension ring rotate and easily realize, and the stroke that rotates of oil cylinder pushing suspension ring is little simultaneously, reduces the equipment investment to oil cylinder.
Compared with prior art, beneficial effect of the present invention:
1, suspension ring leaning device of the present invention, holder pivots described in oil cylinder pushing, described support drives suspension ring to lean forward or hypsokinesis by anchor ear, and described suspension ring are through the part of anchor ear and the roller contact in described anchor ear.The suspension ring leaning device of this syndeton, has following advantage:
(1) suspension ring lean forward in process, anchor ear can glide by relative suspension ring, and the distance that the relative suspension ring of anchor ear drive the jointed shaft of body with top increases, and the component arm of force that anchor ear drives suspension ring to rotate increases, reduce the driving burden of oil cylinder, oil cylinder pushing suspension ring lean forward and more easily realize;
(2) described suspension ring are through the part of anchor ear and the roller contact in described anchor ear, suspension ring can be avoided to lean forward or hypsokinesis process in anchor ear relative suspension ring generation jam cause suspension ring to work;
(3) roller is flexibly connected with suspension ring, suspension ring lean forward or in back recline, suspension ring can only with the roller contact it being had to force, therefore, the anchor ear of said structure can be applicable to the suspension ring that any diameter is less than two roller spacings, need not join the suspension ring deck of different size, expand the range of application of suspension ring leaning device for the suspension ring of different-diameter, decrease drilling well operation, improve efficiency of construction;
(4) anchor ear is along suspension ring relative sliding, eliminates traditional structure once after suspension ring deck pine, also must clamp, attended operation is convenient again.
2, in anchor ear, the contact surface of roller and suspension ring is curved surface, suspension ring lean forward or hypsokinesis time, suspension ring lateral surface and roller curved face contact, the relative anchor ear of suspension ring and roller not easily shake, suspension ring lean forward and back recline steady, equipment safety improves.
3, suspension ring leaning device of the present invention, between support and anchor ear, arrange connecting rod, connecting rod can rotate, namely at the rotation with in surface perpendicular to suspension ring rotational plane around the second bearing pin, link rotatable can drive suspension ring to do the rotation with connecting rod equidirectional, increases the flexibility of suspension ring leaning device; Further, when suspension ring are two, link rotatable can change the spacing of the two suspension ring lower ends be connected on anchor ear, and suspension ring leaning device can be applied to the elevator of different model, different size, expands the range of application of suspension ring leaning device.
accompanying drawing illustrates:
Fig. 1 is the right side view of this patent leaning device;
Fig. 2 is the front view of this leaning device;
Fig. 3 is the forward-lean state schematic diagram of leaning device;
Fig. 4 is hooping structure schematic diagram;
Fig. 5 is the schematic diagram of existing conventional leaning device;
Fig. 6 is the structural representation that the suspension ring of existing conventional leaning device lean forward
Mark in figure: 1-drives body, 2-suspension ring, 3-support, 4-anchor ear, 41-rolling wheel support, 42-roller, 5-oil cylinder, 6-connecting rod, 7-first bearing pin, 8-second bearing pin, 9-the 5th bearing pin, 10-the 4th bearing pin, 11-the 3rd bearing pin, 12-the 6th bearing pin in top;
2 '-suspension ring, 4 '-suspension ring deck, 5 '-oil cylinders.
Detailed description of the invention
Below in conjunction with test example and detailed description of the invention, the present invention is described in further detail.But this should be interpreted as that the scope of the above-mentioned theme of the present invention is only limitted to following embodiment, all technical schemes realized based on content of the present invention all belong to protection scope of the present invention.
Embodiment 1
As shown in Figure 1 to Figure 3, the suspension ring leaning device of the present embodiment, comprises suspension ring 2, support 3, anchor ear 4 and oil cylinder 5,
The upper end of suspension ring 2 is hinged on top by the 6th bearing pin 12 and drives on body 1, and suspension ring 2 can rotate around the 6th bearing pin 12;
The upper end of support 3 is hinged on top by the first bearing pin 7 and drives on body 1, and support 3 can rotate around the first bearing pin 7;
The lower end of support 3 is connected with connecting rod 6, and the upper end of connecting rod 6 is hinged with support 3 by the second bearing pin 8, and connecting rod 6 can rotate around the second bearing pin 8, and the axial line of the second bearing pin 8 is mutually vertical with the axial line of the first bearing pin 7;
The lower end of connecting rod 6 is provided with anchor ear 4, and as shown in Figure 4, anchor ear 4 comprises rolling wheel support 41 and the pair of parallel roller 42 be arranged in rolling wheel support 41, suspension ring 2 through the part of anchor ear 4 two rollers 42.Suspension ring 2 lean forward or hypsokinesis time, suspension ring 2 contact with roller 42 through the part of anchor ear 4, and roller 42 is curved surface with the contact surface of suspension ring 2.Be provided with the 3rd bearing pin 11 outside rolling wheel support 41, anchor ear 4 is hinged by the 3rd bearing pin 11 with connecting rod 6, and connecting rod 6 can rotate around the 3rd bearing pin 11, the axial line of the 3rd bearing pin 11 and the axis parallel of the second bearing pin 8;
The bottom of oil cylinder 5 cylinder body is arranged on top by the 4th bearing pin 10 and drives on body 1, oil cylinder 5 can rotate around the 4th bearing pin 10, the other end of oil cylinder 5 is tailpiece of the piston rod, the piston rod of oil cylinder 5 is hinged with support 3 by the 5th bearing pin 9, oil cylinder 5 and support 3 all can rotate around the 5th bearing pin 9, when suspension ring 2 are positioned at vertical state, oil cylinder 5 is mutually vertical with support 3, as Fig. 1.Fig. 1 is the right side view of the suspension ring leaning device of the present embodiment; Fig. 2 is the front view of the suspension ring leaning device of the present embodiment.
The suspension ring leaning device of said structure, when operation is driven on top, after the control system that top is driven and hydraulic system receive operational order, oil cylinder 5 performs stretching out or retracting of piston rod by instruction stroke.Oil cylinder 5 piston end stretches out and promotes support 3 around the first bearing pin 7 by clockwise direction rotation in Fig. 1, anchor ear 4 entirety also rotates around the first bearing pin 7 under the drive of support 3, in rotation process, the roller 42 of anchor ear 4 is around the axial line own rotation of roller 42, anchor ear 4 moves down along suspension ring 2, the support force of roller 42 pairs of suspension ring 2 can drive suspension ring 2 to rotate along clockwise direction in figure around the axial line of the 6th bearing pin 12 simultaneously, realize leaning forward of suspension ring 2, as shown in Figure 3, Fig. 3 is suspension ring 2 when leaning forward, the connection diagram of each parts.In like manner, when oil cylinder 5 piston rod is regained, suspension ring 2, support 3, anchor ear 4 and oil cylinder 5 all do rightabout motion of leaning forward with suspension ring 2, and suspension ring 2 counterclockwise rotate along in figure around the axial line of the 6th bearing pin 12, the hypsokinesis of solid line suspension ring 2.
Suspension ring leaning device of the present invention, oil cylinder 5 promotes support 3 and rotates, and support 3 drives suspension ring 2 to lean forward or hypsokinesis by anchor ear 4, and suspension ring 2 contact with roller 42 through the part of anchor ear 4, and Fig. 3 is suspension ring 2 forward-lean state schematic diagram.Suspension ring leaning device of the present invention, the annexation of anchor ear 4 and suspension ring 2 has following advantage: (1), as in Fig. 3, F1 is the component that anchor ear 4 makes suspension ring 2 and rotates.Suspension ring 2 lean forward in process, and the pulling force G straight down to suspension ring 2 is constant for weight, and the arm of force of G increases with the increase of suspension ring 2 forward leaning angle; Lean forward in process at suspension ring 2, anchor ear 4 can glide by relative suspension ring 2, and the distance of relative 6th bearing pin 12 of anchor ear 4 increases, the arm of force of F1 increases, in this process, the component F1 that suspension ring 2 are rotated that the thrust of oil cylinder 5 produces is substantially constant, and oil cylinder pushing suspension ring 2 lean forward and more easily realize; (2) establish roller 42 in anchor ear 4, roller 42 contacts with suspension ring 2 and relatively suspension ring 2 slide up and down, suspension ring 2 can be avoided to lean forward or hypsokinesis process in there is jam; (3) relative motion instead of relatively fixing is had between anchor ear 4 and suspension ring 2, suspension ring 2 lean forward or in back recline, suspension ring 2 can only contact with the roller 42 exerted a force to it, therefore an anchor ear 4 can be applicable to any suspension ring being less than several different-diameters of two roller spacings, the suspension ring deck of different size need not be joined for the suspension ring of different-diameter, expand the range of application of suspension ring leaning device, decrease drilling well operation, improve efficiency of construction; (4) because anchor ear is along suspension ring relative sliding, traditional structure is eliminated once after suspension ring deck pine, also must clamp, attended operation is convenient again.
Further, the present invention arranges connecting rod 6 between support 3 and anchor ear 4, and connecting rod 6 can rotate, namely at the rotation with in surface perpendicular to suspension ring rotational plane around the second bearing pin 8.Connecting rod 6 rotates the spacing that can change two suspension ring 2 lower ends be connected on anchor ear 4, and suspension ring leaning device can be applied to the elevator of different model, different size.
For further illustrating the advantage of link tilt assembly of the present invention, the present invention is described to prior art suspension ring leaning device as shown in Figure 5, Figure 6 further.
Fig. 5 is the schematic diagram of conventional leaning device; Fig. 6 is the structural representation that the suspension ring of conventional leaning device lean forward.In Fig. 5, on a certain permanent position on suspension ring deck 4 ' be fixed on suspension ring 2 ', oil cylinder 5 ' ' drives suspension ring 2 ' to rotate by suspension ring deck 4.In Fig. 6, suspension ring 2 ' lean forward, invariant position on suspension ring deck 4 ' suspension ring 2 ', ' arm of force of the power F1 ' of rotation is certain value to make suspension ring 2, and along with the suspension ring 2 ' increase at angle of inclination, the power F1 ' of rotation needs increasing oil cylinder 5 ' promotion make suspension ring 2 ', promote suspension ring 2 ' rotate just need more great oil cylinder 5 ', add equipment fund input and suspension ring 2 ' lean forward or hypsokinesis process in also easily damage oil cylinder 5 '; Meanwhile, the pressure of radial direction is large for suspension ring 2 ' to oil cylinder 5 ', easily damage oil cylinder 5 ', and the link tilt assembly of this structure, ' stroke of piston rod is large, and the weight weight of crawl is little for oil cylinder 5, the weight captured generally is no more than 1t, seriously limits the range of application of electric ring leaning device.
From above-mentioned contrast, suspension ring leaning device of the present invention, because suspension ring 2 are contacted by roller 42 with anchor ear 4, has both reduced the requirement of device to oil cylinder, has reduced the input of device to equipment; Expand the range of application of device simultaneously, suspension ring leaning device of the present invention can apply the suspension ring with different-diameter size, the weight quality extracted increases, and, suspension ring can also be avoided to lean forward or hypsokinesis process in, anchor ear and suspension ring generation jam, also eliminate traditional structure once also need the operation of stepping up after suspension ring deck pine, attended operation is convenient.Further, connecting rod 6 can rotate around the second bearing pin 8, can change the spacing of two suspension ring 2 lower ends, can be applicable to different size elevator, expand the range of application of suspension ring leaning device.
Claims (9)
1. a suspension ring leaning device, comprises suspension ring and drive unit, and the upper end thereof of described suspension ring drives on body on top, and the jointed shaft that described drive unit drives described suspension ring to drive body around suspension ring and top rotates, and it is characterized in that:
Described suspension ring leaning device also comprises support, and the upper end of described support is driven on body by the first hinge on top, and the lower end of described support is connected with anchor ear;
Described anchor ear comprises rolling wheel support and is arranged at the roller in rolling wheel support;
Described suspension ring through described anchor ear, and described suspension ring lean forward or hypsokinesis time, described suspension ring are through the part of described anchor ear and described roller contact;
Described drive unit drives described support to rotate around described first bearing pin, and described support drives described suspension ring to rotate by described anchor ear.
2. suspension ring leaning device according to claim 1, is characterized in that: described roller is two, and described two rollers are set in parallel in described rolling wheel support.
3. suspension ring leaning device according to claim 1 and 2, is characterized in that: the contact surface of described roller and described suspension ring is curved surface.
4. suspension ring leaning device according to claim 1, is characterized in that:
Connecting rod is provided with between described support and described anchor ear;
The upper end of described connecting rod is hinged by the lower end of the second bearing pin and described support, and described connecting rod can rotate around described second bearing pin, and the lower end of described connecting rod is connected with described anchor ear;
The axial line of described first bearing pin and the axial line of described second bearing pin have an angle.
5. suspension ring leaning device according to claim 4, is characterized in that: the angle of the axial line of described first bearing pin and the axial line of described second bearing pin is 90 °.
6. suspension ring leaning device according to claim 4, it is characterized in that: described anchor ear and described connecting rod are by the 3rd hinge, described 3rd bearing pin is fixedly installed on outside described rolling wheel support, and the axial line of described 3rd bearing pin and the axial line of described second bearing pin are parallel to each other.
7. the suspension ring leaning device according to claim 4 ~ 6 any one, is characterized in that: the quantity of described connecting rod is two, and two connecting rod lower ends are all connected with described anchor ear.
8. suspension ring leaning device according to claim 1, is characterized in that: described drive unit is oil cylinder, and the bottom of described oil cylinder is hinged on described top and drives on body, and the piston rod of described oil cylinder is on the bracket hinged.
9. suspension ring leaning device according to claim 8, is characterized in that: when suspension ring are in vertical state, and described oil cylinder is mutually vertical with described support.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410260256.6A CN103993841B (en) | 2014-06-12 | 2014-06-12 | A kind of suspension ring leaning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410260256.6A CN103993841B (en) | 2014-06-12 | 2014-06-12 | A kind of suspension ring leaning device |
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| CN103993841A CN103993841A (en) | 2014-08-20 |
| CN103993841B true CN103993841B (en) | 2016-03-23 |
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| CN201410260256.6A Active CN103993841B (en) | 2014-06-12 | 2014-06-12 | A kind of suspension ring leaning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107606318A (en) * | 2017-08-28 | 2018-01-19 | 苏州巨邦建设工程有限公司 | A kind of adjustable lifting pipeline support |
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| CA2306714C (en) * | 1999-05-02 | 2004-09-14 | Varco International, Inc. | Apparatus and method for rapid replacement of upper blowout preventers |
| CN201078187Y (en) * | 2007-09-12 | 2008-06-25 | 天津瑞灵石油设备有限公司 | Hanging ring inclined apparatus of drill top drive tension rod type |
| CN102606091A (en) * | 2012-01-09 | 2012-07-25 | 天津胜利石油装备有限公司 | Automatic treatment assembly for top drive pipe |
| CN203257346U (en) * | 2013-04-16 | 2013-10-30 | 谷峰 | Coupling clamping-type casing running device |
| CN203867491U (en) * | 2014-06-12 | 2014-10-08 | 四川宏华石油设备有限公司 | Hanging ring inclining mechanism |
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2014
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2306714C (en) * | 1999-05-02 | 2004-09-14 | Varco International, Inc. | Apparatus and method for rapid replacement of upper blowout preventers |
| CN2425193Y (en) * | 2000-04-12 | 2001-03-28 | 石油勘探开发科学研究院机械研究所 | Rotary head of top-drive drilling unit |
| CN201078187Y (en) * | 2007-09-12 | 2008-06-25 | 天津瑞灵石油设备有限公司 | Hanging ring inclined apparatus of drill top drive tension rod type |
| CN102606091A (en) * | 2012-01-09 | 2012-07-25 | 天津胜利石油装备有限公司 | Automatic treatment assembly for top drive pipe |
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