CN106736095A - A kind of aerial docking calculation of box-type headframe - Google Patents
A kind of aerial docking calculation of box-type headframe Download PDFInfo
- Publication number
- CN106736095A CN106736095A CN201710159959.3A CN201710159959A CN106736095A CN 106736095 A CN106736095 A CN 106736095A CN 201710159959 A CN201710159959 A CN 201710159959A CN 106736095 A CN106736095 A CN 106736095A
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- box
- iron plate
- oblique frame
- pointer
- lifting rope
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
Abstract
The present invention relates to a kind of aerial docking calculation of box-type headframe, the box-type headframe is docked in the air using the mode that hinge overturns again is installed additional, and follow-up centering difficulty is significantly reduced；By dip measuring device centering between the oblique frame of upper box and the lower oblique frame of box in box-type headframe, dip measuring device is simple to operate, and measurement efficiency is high, and certainty of measurement is high；In secondary fine setting and measurement process are carried out to the oblique frame inclination angle of upper box, it is to avoid lifting rope is pulled off, while also avoiding bearing, can etc. from being destroyed, safe, implementation result is good.The aerial docking calculation of box-type headframe of the present invention safe and efficient can complete the aerial docking mission of box-type headframe, and rework rate is low, and efficiency of construction is high.
Description
Technical field
The present invention relates to a kind of aerial docking calculation of box-type headframe, belong to hoisting technology field.
Background technology
At present, it is complete in narrow place in most collieries, non-coal mine and the later stage in underground mining mine construction
It is an extremely difficult job into the aerial docking of large-scale box type steel structure derrick, lifting.Especially steel structure derrick is aerial
Docking, be smoothly docking, it is necessary to which often the angle of inclination of measurement box column is facilitating centering.If utilizing theodolite in the air
To measure the angle of inclination of box shape steel structure derrick, although convenient to correct at any time；But, aerial survety operation difficulty is big, risk
Height, and easily disturbed by external factor, certainty of measurement is influenceed, it is unfavorable for the aerial docking of steel structure derrick.If using plummet
Method measures angle, is represented using difference between the actual spacing and theoretical value between plumb line and datum line, and datum line is
Portrayed on vertical panel using theodolite and be made, panel is typically mounted on measuring table, and measuring table may be provided in ground.
But, when measuring box column inclination angle using plummet method, because plummet easily swings, not only between measurement plumb line and datum line
Error is easily caused during actual spacing, certainty of measurement is influenceed；And when subsequently secondary fine setting is carried out to box column inclination angle, need to be by lead
Hammer is packed up or pinioned, and not so plummet is easily as box column swings the normal lifting operation of influence, when measuring again, then by plummet weight
New to release, said process is not only cumbersome, influences measurement efficiency, if misoperation, also easily breaks plummet, reinstalls lead
Hammer is not only wasted time and energy, and the aerial docking of steel structure derrick must do over again, and delay project progress.
The content of the invention
The present invention is in view of the shortcomings of the prior art, there is provided a kind of aerial docking calculation of box-type headframe, particular technique
Scheme is as follows：
A kind of aerial docking calculation of box-type headframe, comprises the following steps：
Step one, operation platform is installed on the top of lower box oblique frame, rope mouth was provided with operation platform；
Step 2, the top that the oblique frame of upper box is hung to the oblique frame of lower box, in the bottom of the oblique frame of upper box and the lower oblique frame of box
Hinge is set between top, and hinge is arranged on the top of operation platform；
Step 3, the oblique frame of upper box are overturn centered on the bearing pin in hinge, in switching process, the upper oblique frame of box and lower box
Pass through dip measuring device centering between oblique frame；
After step 4, centering, the upper oblique frame of box and the lower oblique frame of box are welded and fixed.
Used as the improvement of above-mentioned technical proposal, the dip measuring device includes bearing, lifting rope, can, remote control switch, institute
The inner ring for stating bearing is installed with dead axle, and mounting rod is provided with below the bearing, and the upper end of upper mounting rod is outer with bearing
Circle is fixedly connected, and the lower end of upper mounting rod is fixedly connected with the upper end of lifting rope；The can is arranged on the lower section of lifting rope, the iron
Lower mounting rod is additionally provided between box and lifting rope, the upper end of lower mounting rod is fixedly connected with the lower end of lifting rope, under lower mounting rod
End is fixedly connected with the top of can；The can is internally provided with battery, electromagnet, and the remote control switch includes switch
Body and remote control, the Switch main body are arranged on the inside of can, and the remote control is arranged on the outside of can, the electromagnetism
Iron includes iron core and coil, and the iron core is fixedly connected with can, and the coil and Switch main body are connected in series rear and battery
Be electrically connected to form loop；The bottom of the can is installed with extended line where pointer, pointer and is total to extended line where lower mounting rod
Line；Iron plate, arc iron plate, regulating bolt, top and the can of the iron plate are also provided between the can and pointer
Bottom is fixedly connected, and the bottom of the iron plate is fixedly connected with the top of pointer；The left and right two ends of the iron plate are respectively arranged with
For the through hole of iron plate turnover, the left and right two ends of the iron plate are installed with block respectively, and block is arranged on the outside of iron plate, the iron
The inner side of iron plate is arranged in the middle part of piece；The screw being engaged with regulating bolt is additionally provided with the middle part of the iron plate；The iron
The outside of box is fixedly provided with indicator lamp, and indicator lamp is connected in series with Switch main body.
As the improvement of above-mentioned technical proposal, measuring table has also been built on the ground, theodolite has been utilized on measuring table
Vertical irony panel is installed, a vertical datum line is portrayed using theodolite on panel.
Used as the improvement of above-mentioned technical proposal, dead axle is welded on upper box by the application method of the dip measuring device
The bottom of oblique frame, pointer passed through rope mouth rear lifting rope to naturally droop and swing；Rotate middle part and face that regulating bolt adjusts iron plate
Spacing between plate, when lifting rope is in vertical state, the middle part touch panel of iron plate；When pointer is not when swinging, press distant
Control device, indicator lamp is lighted, and now recycles the distance between datum line x on tape measure pointer and panel.
As the improvement of above-mentioned technical proposal, when being welded between the upper oblique frame of box and the lower oblique frame of box, first using point
Weldering welding, then full weld welding.
Beneficial effects of the present invention：The box-type headframe is docked in the air using the mode that hinge overturns again is installed additional, subsequently
Centering difficulty is significantly reduced；By dip measuring device centering between the oblique frame of upper box and the lower oblique frame of box in box-type headframe,
Dip measuring device is simple to operate, and measurement efficiency is high, and certainty of measurement is high；The oblique frame inclination angle of upper box is carried out it is secondary fine setting and
In measurement process, it is to avoid lifting rope is pulled off, while also avoiding bearing, can etc. from being destroyed, safe, implementation result is good.This
Inventing the aerial docking calculation of the box-type headframe safe and efficient can complete the aerial docking mission of box-type headframe, and rework rate is low, applies
Work efficiency high.
Brief description of the drawings
Fig. 1 is the upper oblique frame of box of the present invention and the oblique frame docking schematic diagram of lower box；
Fig. 2 is iron plate structural representation of the present invention；
Fig. 3 is the circuit catenation principle figure of coil of the present invention, Switch main body, indicator lamp and battery；
Fig. 4 is operation platform structural representation of the present invention.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, the present invention is entered below in conjunction with accompanying drawing
Row is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, limit is not used to
The fixed present invention.
The aerial docking calculation of box-type headframe, comprises the following steps：
Step one, operation platform 61 is installed on the top of lower box oblique frame 6, rope mouth 611 was provided with operation platform 61, such as
Shown in Fig. 4；The lower oblique frame 6 of box is the partial component of box-type headframe, and the lower oblique frame 6 of box has completed to fix, the side of operation platform 61
Just survey crew, workmen operation in the air.
Step 2, the top that the oblique frame 7 of upper box is hung to the oblique frame 6 of lower box, the upper oblique frame 7 of box is the part of box-type headframe
Component, sets hinge 8, as shown in figure 1, hinge 8 is set between the top of the bottom of the oblique frame 7 of upper box and the oblique frame 6 of lower box
In the top of operation platform 61, workmen completes the installation of hinge 8 on operation platform 61.
The oblique frame 7 of step 3, upper box is overturn centered on the bearing pin in hinge 8, in switching process, the upper oblique frame 7 of box
Pass through dip measuring device centering and the lower oblique frame 6 of box between；As shown in Fig. 1 ~ 3, the dip measuring device include bearing 1,
Lifting rope 2, can 3, remote control switch, the inner ring of the bearing 1 are installed with dead axle 11, and the lower section of the bearing 1 is provided with installation
Bar 12, the upper end of upper mounting rod 12 is fixedly connected with the outer ring of bearing 1, and lower end and the upper end of lifting rope 2 of upper mounting rod 12 are fixed
Connection；The can 3 is arranged on the lower section of lifting rope 2, and lower mounting rod 31, lower installation are additionally provided between the can 3 and lifting rope 2
The upper end of bar 31 is fixedly connected with the lower end of lifting rope 2, and the lower end of lower mounting rod 31 is fixedly connected with the top of can 3；The iron
Box 3 is internally provided with battery 32, electromagnet, and the remote control switch includes Switch main body 331 and remote control, the switch sheet
Body 331 is arranged on the inside of can 3, and the remote control is arranged on the outside of can 3, and the electromagnet includes iron core and coil
341, the iron core is fixedly connected with can 3, and the coil 341 and Switch main body 331 are connected in series and are electrically connected with battery 32 afterwards
Connect composition loop；The bottom of the can 3 is installed with pointer 4, and the place extended line of pointer 4 is common with the place extended line of lower mounting rod 31
Line；Iron plate 5, arc iron plate 52, regulating bolt 53, the top of the iron plate 5 are also provided between the can 3 and pointer 4
Bottom with can 3 is fixedly connected, and the bottom of the iron plate 5 is fixedly connected with the top of pointer 4；The left and right two of the iron plate 5
End is respectively arranged with the through hole 51 for the turnover of iron plate 52, and the left and right two ends of the iron plate 52 are installed with block 521, block respectively
521 outsides for being arranged on iron plate 5, the middle part of the iron plate 52 is arranged on the inner side of iron plate 5；The middle part of the iron plate 5 also sets up
There is the screw being engaged with regulating bolt 53；The outside of the can 3 is fixedly provided with indicator lamp 35, indicator lamp 35 and Switch main body
331 are connected in series.Further, measuring table 9 has also been built on the ground, has been provided with using theodolite on measuring table 9 perpendicular
Straight irony panel 91, a vertical datum line is portrayed on panel 91 using theodolite.
After step 4, centering, the upper oblique frame 7 of box and the oblique frame 6 of lower box are welded and fixed.It is to reduce the upper oblique frame 7 of box with
The probability shifted between the oblique frame 6 of box, when being welded between the upper oblique frame 7 of box and the oblique frame 6 of lower box, first using spot welding
Welding, then full weld welding.
The application method of the dip measuring device：Dead axle 11 is welded on the bottom of the oblique frame 7 of upper box, pointer 4 is passed through
The rear lifting rope 2 of rope mouth 611 is crossed to naturally droop and swing；Between rotating between the middle part of the regulation iron plate 52 of regulating bolt 53 and panel 91
Away from, when lifting rope 2 is in vertical state, the middle part touch panel 91 of iron plate 52；When pointer 4 is not when swinging, remote control is pressed,
Indicator lamp 35 is lighted, and now recycles the distance between datum line x on tape measure pointer 4 and panel 91.
It is described herein it is left and right, upper and lower both with respect to Fig. 1 for.Dead axle 11 is welded on box column to be measured, dead axle
11 and the position of hinge 8 see Fig. 1, lifting rope 2 can be fixed with upper mounting rod 12, lower mounting rod 31 by the way of welding；Can 3 and
The weights such as battery therein 32, electromagnet, iron plate 5 are present so that can 3 and battery therein 32, electromagnet, iron plate 5
A counterweight is constituted Deng weight；During measurement, the Separation control between can 3 and measuring table 9 in 0.5 ~ 1.5m, matching somebody with somebody by lifting rope 2
A vertical structure is formed in the presence of weight；Lifting rope 2 is generally 5 ~ 20m due to length, therefore lifting rope 2 easily shakes, when
When lifting rope 2 is in vertical state, can there is small spacing between the middle part of panel 91 and iron plate 52, can now be adjusted by rotating
Bolt 53, the interval under the extruding of the head of regulating bolt 53 between the middle part of iron plate 52 and panel 91 is gradually reduced until iron plate
52 middle part contacts with panel 91, that is to say, that the middle part of iron plate 52 contacts with panel 91 can promote lifting rope 2 to keep vertical state.
Between iron plate 52 and iron plate 5 formed similar " D " shape component, by rotate regulating bolt 53 can adjust iron plate 52 middle part and
Spacing between iron plate 5, iron plate 52 has elasticity, is additionally favorable for iron plate 52 and deforms, moves；Through hole 51 has spacing effect,
Through hole 51 it is spacing under, when the middle part stress of iron plate 52 is moved, ensure that whole iron plate 52 is arc all the time；Block 521
Iron plate 52 can be avoided to be slipped from through hole 51.Can not only easily transmits magnetic as the carrier of counterweight, but also with protection
The effect of battery 32, electromagnet, it is to avoid it is destroyed.
The remote control switch point remote control transmitter and switch receiver two parts, remote control transmitter i.e. described herein distant
Control device, remote control encodes control electric signal, then modulates（Infrared modulated, electromagnetic wave modulation and network data signals are modulated）,
Wireless signal is converted into send.Switch receiver includes control circuit and Switch main body 331.Record principle：Control circuit
The radio wave signal of carrying information is received, then amplified, decoded, obtain original control electric signal, electric signal is carried out again
Power amplification is used for driving switch body 331.Remote control switch described herein may be selected Foshan Ao Yuxing Electronics Co., Ltd.s model
It is the direct current remote control switch of AYX-DC24V-FL1, the direct current remote control switch small volume of the model, remote control is remote；Control circuit is by storing
Battery 32 provides power supply.
Because the oblique frame 7 of upper box and the oblique frame 6 of lower box are hinged by hinge 8, the upper oblique frame 7 of box is with the bearing pin in hinge 8
Center overturn, in switching process, the vertical range on dead axle 11 and panel 91 between datum line is continually changing, and dead axle 11 with
Vertical range on panel 91 between datum line is equal to x, therefore it is oblique beneficial to upper box to measure x using the dip measuring device
The centering of frame 7.In the dip measuring device course of work, lifting rope 2 is promoted to keep vertical state due to having passed through iron plate 52,
When pointer 4 is not when swinging, in closure of pressing remote control so that Switch main body 331 is powered, indicator lamp 35 lights survey crew, line
Circle 341 is powered and causes that iron core has magnetic, and electromagnet causes that can 3, iron plate 5, iron plate 52 are respectively provided with magnetic, and iron plate 52 can moment
Panel 91 is adsorbed, now survey crew will appreciate that iron plate 5 is attracted on panel 91 by indicator lamp 35, now recycle volume
Chi measures the distance between datum line x on pointer 4 and panel 91, can also be calculated according to the height between dead axle 11 and pointer 4
The inclination angle of the oblique frame 7 of box；Said process, on pointer 4 and panel 91 is measured between datum line apart from when, due to the quilt of pointer 4
Absorption is fixed, it is to avoid pointer 4 swings in measurement, improves certainty of measurement.Bearing 1 enables mounting rod 12 with the cooperation of dead axle 11
It is enough to be very easy to be in vertical state, that is to say, that lifting rope 2 can easily recover vertical state, follow-up measurement essence is not influenceed
Degree.In lifting rope 2 in swing process, if the frictional force between iron plate 52 and panel 91 is larger, when lifting rope 2 stops swinging,
Lifting rope 2 is easily caused for heeling condition, follow-up certainty of measurement is influenceed；Because iron plate 52 is arc all the time, iron plate 52 and panel 91 it
Between frictional force reach minimum, the inner side of the iron plate 5 is that side where panel 91.
After measurement is finished, if the difference between x and theoretical value exceeds the scope of design load, it is necessary to again by crane again
The inclination angle of the oblique frame 7 of box in secondary fine setting, in this process, because can 3, iron plate 5, iron plate 52 are attracted on panel 91,
Lifting rope 2 can be avoided significantly disorderly to shake, disorderly pendulum is hurted sb.'s feelings while avoiding can 3, iron plate 5, iron plate 52, not interfere with normal lifting and make
Industry；In trim process, even if iron plate 52 is slightly moved on panel 91, panel 91, iron plate 52 or lifting rope 2 will not be also damaged.
After the inclination angle trimming regulating of the oblique frame 7 of upper box is finished, first pass through remote control and close indicator lamp 35, electromagnet so that lifting rope 2 can be again
It is new to recover vertical state, to measure x again.When the difference between x and theoretical value is within the scope of design load when, top box is illustrated
Centering success between the oblique frame 7 of type and the oblique frame 6 of lower box, then again to being carried out a little between the oblique frame 7 of upper box and the oblique frame 6 of lower box
Weldering, after spot welding terminates, reuses dip measuring device measurement x, if the difference between x now and theoretical value exceeds
The scope of design load, then need to carry out cutting to spot welding position to do over again, after after centering again, spot welding again；After spot welding terminates,
When difference between x and theoretical value is in the range of design load, then to being expired between the oblique frame 7 of upper box and the oblique frame 6 of lower box
Weldering welding.
In the above-described embodiments, iron plate 5, iron plate 52 and panel 91 are fixed by the way of remote control, can be to greatest extent
The influence for avoiding external cable pair lifting rope 2, improve certainty of measurement.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (5)
1. the aerial docking calculation of a kind of box-type headframe, it is characterised in that comprise the following steps：
Step one, operation platform is installed on the top of lower box oblique frame, rope mouth was provided with operation platform；
Step 2, the top that the oblique frame of upper box is hung to the oblique frame of lower box, in the bottom of the oblique frame of upper box and the lower oblique frame of box
Hinge is set between top, and hinge is arranged on the top of operation platform；
Step 3, the oblique frame of upper box are overturn centered on the bearing pin in hinge, in switching process, the upper oblique frame of box and lower box
Pass through dip measuring device centering between oblique frame；
After step 4, centering, the upper oblique frame of box and the lower oblique frame of box are welded and fixed.
2. the aerial docking calculation of a kind of box-type headframe according to claim 1, it is characterised in that：The dip measuring device
Including bearing, lifting rope, can, remote control switch, the inner ring of the bearing is installed with dead axle, and peace is provided with below the bearing
Dress bar, the upper end of upper mounting rod is fixedly connected with the outer ring of bearing, and the lower end of upper mounting rod is fixedly connected with the upper end of lifting rope；Institute
State the lower section that can is arranged on lifting rope, be additionally provided with lower mounting rod between the can and lifting rope, the upper end of lower mounting rod with hang
The lower end of rope is fixedly connected, and the lower end of lower mounting rod is fixedly connected with the top of can；The can is internally provided with electric power storage
Pond, electromagnet, the remote control switch include Switch main body and remote control, and the Switch main body is arranged on the inside of can, described
Remote control is arranged on the outside of can, and the electromagnet includes iron core and coil, and the iron core is fixedly connected with can, the line
Circle and Switch main body are connected in series rear and storage battery and connect and compose loop；The bottom of the can is installed with pointer, pointer institute
It is conllinear with extended line where lower mounting rod in extended line；Iron plate, arc iron plate are also provided between the can and pointer, are adjusted
Section bolt, the top of the iron plate is fixedly connected with the bottom of can, and the bottom of the iron plate is fixedly connected with the top of pointer；
The left and right two ends of the iron plate are respectively arranged with the through hole for iron plate turnover, and the left and right two ends of the iron plate are installed with gear respectively
Block, block is arranged on the outside of iron plate, and the inner side of iron plate is arranged in the middle part of the iron plate；It is additionally provided with the middle part of the iron plate
The screw being engaged with regulating bolt；The outside of the can is fixedly provided with indicator lamp, and indicator lamp is connected in series with Switch main body.
3. the aerial docking calculation of a kind of box-type headframe according to claim 2, it is characterised in that：Also build on the ground
Measuring table, vertical irony panel is provided with measuring table using theodolite, and one has been portrayed using theodolite on panel
Vertical datum line.
4. the aerial docking calculation of a kind of box-type headframe according to claim 3, it is characterised in that：The dip measuring device
Application method, dead axle is welded on the bottom of the oblique frame of upper box, pointer passed through rope mouth rear lifting rope to naturally droop and swing；Turn
Spacing between the middle part of dynamic regulating bolt regulation iron plate and panel, when lifting rope is in vertical state, the middle part contact of iron plate
Panel；When pointer is not when swinging, remote control is pressed, indicator lamp is lighted, now recycle tape measure pointer with base on panel
The distance between directrix x.
5. the aerial docking calculation of a kind of box-type headframe according to claim 1, it is characterised in that：The oblique frame of upper box and
When being welded between the lower oblique frame of box, first using spot-welded, then full weld welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710159959.3A CN106736095B (en) | 2017-03-17 | 2017-03-17 | A kind of aerial interconnection method of box-type headframe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710159959.3A CN106736095B (en) | 2017-03-17 | 2017-03-17 | A kind of aerial interconnection method of box-type headframe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106736095A true CN106736095A (en) | 2017-05-31 |
| CN106736095B CN106736095B (en) | 2018-12-14 |
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ID=58967082
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710159959.3A Active CN106736095B (en) | 2017-03-17 | 2017-03-17 | A kind of aerial interconnection method of box-type headframe |
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|---|---|---|---|---|
| CN101581198A (en) * | 2009-04-25 | 2009-11-18 | 中煤第七十一工程处 | Overhead hoisting and butt-joint method for box-type headframe |
| CN203097737U (en) * | 2012-09-18 | 2013-07-31 | 国民油井华高石油设备（上海）有限公司 | Telescopic integral hoisting type headframe device |
| CN204182426U (en) * | 2014-10-28 | 2015-03-04 | 江西德上制药有限公司 | Integral type pharmacy pulverizer |
| CN104863517A (en) * | 2015-05-06 | 2015-08-26 | 宝鸡石油机械有限责任公司 | Rolling-type assembly method for K-shaped derrick of petroleum drilling machine |
| WO2016028291A1 (en) * | 2014-08-20 | 2016-02-25 | Halliburton Energy Services, Inc. | Low stress rope socket for a downhole tool |
| CN105909179A (en) * | 2016-05-31 | 2016-08-31 | 南阳二机石油装备集团股份有限公司 | Automatic folding racking platform for drilling rig mast |
-
2017
- 2017-03-17 CN CN201710159959.3A patent/CN106736095B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581198A (en) * | 2009-04-25 | 2009-11-18 | 中煤第七十一工程处 | Overhead hoisting and butt-joint method for box-type headframe |
| CN203097737U (en) * | 2012-09-18 | 2013-07-31 | 国民油井华高石油设备（上海）有限公司 | Telescopic integral hoisting type headframe device |
| WO2016028291A1 (en) * | 2014-08-20 | 2016-02-25 | Halliburton Energy Services, Inc. | Low stress rope socket for a downhole tool |
| CN204182426U (en) * | 2014-10-28 | 2015-03-04 | 江西德上制药有限公司 | Integral type pharmacy pulverizer |
| CN104863517A (en) * | 2015-05-06 | 2015-08-26 | 宝鸡石油机械有限责任公司 | Rolling-type assembly method for K-shaped derrick of petroleum drilling machine |
| CN105909179A (en) * | 2016-05-31 | 2016-08-31 | 南阳二机石油装备集团股份有限公司 | Automatic folding racking platform for drilling rig mast |
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|---|---|
| CN106736095B (en) | 2018-12-14 |
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