CN105927168A - Dobby drill dill-rod lifter rubber sleeve and manufacturing method thereof - Google Patents
Dobby drill dill-rod lifter rubber sleeve and manufacturing method thereof Download PDFInfo
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- CN105927168A CN105927168A CN201610262069.0A CN201610262069A CN105927168A CN 105927168 A CN105927168 A CN 105927168A CN 201610262069 A CN201610262069 A CN 201610262069A CN 105927168 A CN105927168 A CN 105927168A
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- Prior art keywords
- conveyer belt
- gum cover
- aggregate conveyer
- centralizing device
- aggregate
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- 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.)
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- 238000004519 manufacturing process Methods 0.000 title abstract description 12
- 238000005553 drilling Methods 0.000 claims description 16
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 12
- 230000008901 benefit Effects 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000012946 outsourcing Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention discloses a dobby drill dill-rod lifter rubber sleeve and a manufacturing method thereof. The method comprises: using a scrapped aggregate conveyor belt to make an aggregate conveyor belt block, arranging a drill stem hole on the center of the aggregate conveyor belt block, respectively arranging an installing hole on two corners of one edge of the aggregate conveyor belt block, overlaying more than two aggregate conveyor belt blocks, and using a bolt to connect and fix the integrated overlaid aggregate conveyor belt blocks through the installing holes. The scrapped aggregate conveyor belt is used to manufacture the dobby drill dill-rod lifter rubber sleeve, manufacturing cost is low, and the rubber sleeve is simple in structure and is practical. The scrapped aggregate conveyor belt is used to manufacture the dobby drill dill-rod lifter rubber sleeve, the dobby drill dill-rod lifter rubber sleeve is wear-resisting and durable, replacement period is long, and labor replacement is saved. The self-made dobby drill dill-rod lifter rubber sleeve does not need a purchasing link, and solves problems that purchasing is hard in backward areas, and solves problems of purchasing of dill-rod lifter rubber sleeves and high transportation cost.
Description
Technical field
The present invention relates to a kind of puncheon centralizing device gum cover field being used on multi-arm brill, be specifically related to one
Multi-arm bores puncheon centralizing device gum cover and preparation method thereof.
Background technology
Puncheon centralizing device gum cover all uses rubber to make, mainly in multi-arm bores construction operation, to brill
Bar carries out righting position-limiting action, as it is shown in figure 1, existing puncheon centralizing device gum cover is cuboid one
Structure, is provided with the through hole plugging drilling rod on cuboid.
Uganda's Ka Luma tailwater tunnel is tunnel of large section, system supporting armature boring quantities
Huge, produce for ensureing, be configured with three multi-arms and creep into the construction of row armature boring.Due to multi-arm
Bore puncheon centralizing device gum cover consumption in actual use big, and because engineering is located in Africa, traffic
Inconvenience, procurement cycle is long, and consumptive material itself is expensive in addition, brings greatly to practice of construction operation
Inconvenience.
Atlas two-arm is drilled in and on July 24th, 2015 starts to put into production, to 2015
October 3 amounted to 72d, according to the statistics carrying out on-the-spot completed amount, had added up to about
The drilling construction of 30000 m, but employ 32 front puncheon centralizing device gum covers (2 original-pack positive factories,
30 domestic secondary factories), 22 middle puncheon centralizing device gum covers (2 original-pack positive factories, 20 domestic secondary factories),
The most front puncheon centralizing device gum cover average 937.5m boring changes one, and middle puncheon centralizing device gum cover is average
1250m boring changes one.According to procurement contract, front puncheon centralizing device gum cover original-pack positive factory unit price
1006 yuan/, domestic secondary factory unit price 630 yuan/, middle puncheon centralizing device gum cover original-pack positive factory unit price 712
Unit/, domestic secondary factory unit price 340 yuan/, 72d consumes puncheon centralizing device gum cover accessory and adds up to expense
29816 yuan, only this item consumption part average every day takes 414 yuan, causes Atlas two-arm
Brill use cost remains high.
Summary of the invention
The purpose of the present invention is i.e. to overcome the deficiencies in the prior art, it is provided that a kind of multi-arm bores holds up pricker
Device gum cover and preparation method thereof, solves puncheon centralizing device gum cover use cost high, uses the replacement cycle short
And the problem that buying is inconvenient.
The present invention is achieved through the following technical solutions:
A kind of multi-arm bores puncheon centralizing device gum cover, and employing is scrapped aggregate conveyer belt and is cut into aggregate transmission
Band square, offers drilling rod through hole, at described bone in described aggregate conveyer belt square center
Material conveyer belt square offers an installing hole at wherein two angles on one side respectively, by two pieces with
On aggregate conveyer belt square superposition, use bolt by installing hole by superposition one aggregate
Conveyer belt square concatenation is fixing.Self-control is held up the installation of pricker gum cover the most directly to use iron wire to intersect and is tied up
Pricking, multi-arm bores the place of puncheon centralizing device bearing before drill boom front is installed, and is a draw-in groove, card groove width
Degree 8cm, length 10cm is just of uniform thickness, so puncheon centralizing device is to hold up with self-control puncheon centralizing device
In pricker device bearing draw-in groove 7 fixing, two bolts 4 fixing above bearing, upper Founder
Having well the position of bolt 4, lower section is in draw-in groove, it is not necessary to bolt, the most firm, installs skill
Art threshold is low, and local employee also can skillfully complete, and owing to conveyer belt itself has very well
Toughness and elasticity, it will not be caused damage.
Preferably, described aggregate conveyer belt square width and a height of 8cm, drilling rod through-hole diameter 4cm.
Preferably, the described aggregate conveyer belt a diameter of 0.6cm of square installing hole, described must pacify
The adjacent both sides of hole centre-to-centre spacing in dress hole are 1cm.
Preferably, described puncheon centralizing device gum cover uses 9 pieces of aggregate conveyer belt squares to be formed by stacking.
The present invention is realized by another technical scheme following:
A kind of multi-arm bores the preparation method of puncheon centralizing device gum cover, it is characterised in that include step:
Step 1, employing are scrapped aggregate conveyer belt and are cut into aggregate conveyer belt square；
Step 2, offer drilling rod through hole in described aggregate conveyer belt square center；
Step 3, at described aggregate conveyer belt square wherein two angles on one side, offer one respectively
Individual installing hole；
Step 4, by the aggregate conveyer belt square superpositions of more than two pieces, use bolt by installing
Puncheon centralizing device gum cover is made by fixing for the aggregate conveyer belt square concatenation of superposition one in hole.
The present invention compared with prior art, has such advantages as and beneficial effect:
1, use scrap aggregate conveyer belt make multi-arm bore puncheon centralizing device gum cover, cost of manufacture is low,
Simple and practical；
2, use scrap aggregate conveyer belt make multi-arm bore puncheon centralizing device gum cover, wear-resisting durable, more
Cycle of changing is long, saves and changes labour force；
3, self-control multi-arm bores puncheon centralizing device gum cover, saves buying link, solves in backward areas
It is difficult to purchase, and solves and hold up the buying of pricker gum cover, problem that cost of transportation is high.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes
The part of the application, is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of existing puncheon centralizing device gum cover；
Fig. 2 is the structural representation of puncheon centralizing device gum cover of the present invention；
Fig. 3 is the structural representation of aggregate conveyer belt square of the present invention；
Fig. 4 is that puncheon centralizing device gum cover uses the structural representation installed before the present invention；
Labelling and corresponding parts title in accompanying drawing:
1-aggregate conveyer belt square, 2-drilling rod through hole, 3-installing hole, 4-bolt, 5-iron wire,
Puncheon centralizing device bearing before 6-, 7-draw-in groove, 8-drilling rod.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with reality
Executing example and accompanying drawing, the present invention is described in further detail, the schematic enforcement of the present invention
Mode and explanation thereof are only used for explaining the present invention, not as a limitation of the invention.
Embodiment 1
Owing to locality development falls behind, locality and surrounding countries are all without this accessory, and buying can only nearby
Abandon.To holding up pricker gum cover observation analysis, this accessory must wear-resisting, flexible, flexible, energy
The most well drilling rod is held in rig large arm position.By analysis, the now artificial bone in building site
Material production system has changed the conveyer belt much scrapped, and just has wear-resisting, flexible, has bullet
Property etc. in performance, and conveyer belt containing multi-layer fiber, its toughness, stability are more preferable, utilize
The aggregate conveyer belt that artificial aggregate production system is scrapped, designs and produces out long-lived alternative
Puncheon centralizing device gum cover, successfully turns waste into wealth.
As Figure 2-3, one multi-arm of the present invention bores puncheon centralizing device gum cover, holds up pricker gum cover before making
Long 10cm, wide and high 8cm, centre is the hole of diameter 4cm.Scrap aggregate transmission bandwidth
650cm～1000cm, thickness 1.1～1.2cm.By the conveyer belt of different in width with cutting
Trigger is cut into the aggregate conveyer belt square 1 of 8cm × 8cm (also can be made blade by oneself and be arranged on four posts
On press, strip is cut)；With four post presses at square center with from round cutting head
(D=4cm) extrude round drill rod through hole 2, at two angles, open peace respectively with four post presses
Dress hole 3 (D=6mm), centre-to-centre spacing adjacent both sides in hole are 1cm, when perforate, preferably make
One right angle L-type draw-in groove fixes aggregate conveyer belt square 1 on drilling machine, prevents in pore forming process
Middle square rotates or shifts and cause pore-forming out of alignment, and impact assembles；Hole is held successfully by 9
Aggregate conveyer belt square 1 is good with two M6 × 120mm screw strings, first-class nut, fastening,
Pricker gum cover is held up just to complete for one.
The situation purchasing and holding up the buying of pricker gum cover, cost of transportation is high it is difficult in local and surrounding countries
Under, project management department combines reality, fully implements the objective of " cost efficiency ", and organizational technology tackles key problems,
Under utilizing aggregate production system to replace scrap conveyer belt self-control rig before, in hold up pricker gum cover.Root
From the point of view of the long service condition in scene, self-control holds up pricker gum cover to be fully able to meet what multi-arm bored
Normal use, single use 8-10d, in hold up that pricker gum cover is single uses more than 12d.
A kind of self-control multi-arm bores puncheon centralizing device gum cover, and wearability significantly improves: pre-according to tailwater tunnel
The country rock distribution surveyed, two tailwater tunnels need anchor pole 17.9 ten thousand altogether, and bore operation is roughly equal to 43.2
Ten thousand m.Before deducting on October in 2015 3, completed 30,000 m, there remains 40.2 ten thousand m
Armature boring is constructed.If still using genuine or secondary factory to hold up pricker gum cover according to former ratio, the most front
For holding up pricker gum cover, average 937.5m changes and once calculates, and completing residual engineering workload also needs to purchase
Pricker gum cover is held up before buying 402000/937.5=429.By that analogy, pricker glue is held up in needing 322
Set.But, if using what waste and old conveyer belt made to hold up pricker gum cover, before one, hold up pricker gum cover to put down
All 9d change once, with reference to front production capacity on October 3rd, 2015, complete 30000/105
× 9=2571m just changes once.So, remaining 40.2 ten thousand m armature boring constructions are completed
Hold up pricker gum cover before having only to make 157, have only to by that analogy make in 118 and hold up
Pricker gum cover.Thus explanation self-control holds up pricker gum cover to hold up pricker gum cover the most prolonged resistance to compared with genuine or secondary factory
With, meanwhile, discarded conveyer belt is turned waste into wealth by project management department, not only reduces purchase cost, also
Decrease replacement frequency.
A kind of self-control multi-arm bores puncheon centralizing device gum cover, property easy to use: genuine or secondary factory hold up pricker glue
Be enclosed within install be with multi-arm bore hold up clamp at pricker gum cover to fix, but according to operator's
Experience, clamp, often to holding up pricker gum cover to cause damage, accelerates it and damages, and clamp is also
It is easily damaged, expensive.Self-control holds up the installation of pricker gum cover the most directly to use iron wire 5 to intersect
As shown in Figure 4, multi-arm bores the place of puncheon centralizing device bearing 6 before drill boom front is installed, and is individual in colligation
Draw-in groove 7, card well width 8cm, length 10cm is just of uniform thickness with self-control puncheon centralizing device, so
Puncheon centralizing device is fixing in puncheon centralizing device bearing 6 draw-in groove 7, two bolts 4 fixing at bearing
Top, just there is the position of bolt 4 top, and lower section is in draw-in groove, it is not necessary to bolt, very
Firm, mounting technique threshold is low, and local employee also can skillfully complete, and due to conveyer belt
Itself there is good toughness and elasticity, it will not be caused damage.Although single is installed
On between, the most relatively the genuine part set-up time is long, but substantially reduces owing to changing the frequency, because of
This is for whole project, and overall replacing construction to be saved, be computed saving 40% with
On.
A kind of self-control multi-arm bores puncheon centralizing device gum cover, the equipment suitability: among other advantages, root
Add up according to on-the-spot actually used situation, after using self-control to hold up pricker gum cover, drill rod breaking occurred in single month
Probability reduced.The most fully showing, self-control is held up pricker gum cover to bore for multi-arm and is run
There is fine adaptability.
At present, Ka Luma tailwater tunnel project multi-arm bore before, in hold up pricker gum cover all realize self-control,
Without outsourcing, thus it is greatly saved cost.It is artificial that self-control holds up pricker gum cover to have only to put into processing
Take, screw material is taken and shear lathe, press depreciation and the electricity charge, and project management department is the completeest
Becoming local labour's processing to hold up pricker gum cover training, cost reduces the most further.
Direct economic benefit, adds up according to Ka Luma tailwater tunnel project data, and passes through following table
1-3 analyzes, it is contemplated that terminate to drilling construction, and self-control cost only needs 9314 yuan, and outsourcing cost needs
399946 yuan, direct economic benefit 39.06 ten thousand yuans can be created.
The single cost sheet of pricker gum cover is held up in table 1 self-control
Pricker gum cover cost sheet is held up in table 2 self-control
Pricker gum cover cost sheet is held up in table 3 outsourcing
Indirect economic effect, before being made by oneself by use, in hold up pricker gum cover, successfully solve and join
Part buying difficulty, supply not in time, affect the duration and in-cavity construction security problems, it is ensured that
The normal follow-up of supporting construction is dug in hole, has striven for the quality time for project construction.Also it is simultaneously
The important embodiment of response project " cost efficiency ", becomes the successful experiment turned waste into wealth.
In Uganda Ka Luma tail tunnel of hydropower station multi-arm bores drilling construction, pricker gum cover is held up to disappear
Consumption is big, and cost is high, and purchases difficulty, domestic procurement cycle relatively in local or surrounding countries
When length, what the conveyer belt making utilizing artificial aggregate production system discarded can substitute holds up
Pricker gum cover, solves the problems referred to above well, achieves preferable economic benefit.This holds up pricker glue
Set has the features such as processing technology is simple, material is easily obtained, economical and practical, be worth at home,
Popularization and application in outer similar engineering construction.
Embodiment 2
As Figure 2-3, one multi-arm of the present invention bores puncheon centralizing device gum cover, holds up pricker gum cover before making
Long 11cm (can determine the manufactured size of puncheon centralizing device gum cover) according to actual needs, wide and high
8cm, centre is the hole of diameter 4cm.Scrap aggregate transmission bandwidth 650cm～1000cm, thick
Degree 1.1～1.2cm.The conveyer belt plate shearing machine of different in width is cut into 8cm × 8cm's
Aggregate conveyer belt square 1 (also can make blade by oneself to be arranged on strip cutting on four post presses)；
Logical with extruding round drill rod from round cutting head (D=4cm) at square center with four post presses
Hole 2, opens installing hole 3 (D=6mm), center, hole respectively with four post presses at two angles
It is 1cm away from adjacent both sides, when perforate, preferably makes a right angle L-type draw-in groove at drilling machine
Upper fixing aggregate conveyer belt square 1, prevents square in pore forming process from rotating or shifting and cause
Pore-forming is out of alignment, and impact assembles；10 are held the aggregate conveyer belt square 1 in hole successfully with two
M6 × 120mm screw string is good, first-class nut, fastening, holds up pricker gum cover just to complete for one.
Embodiment 3
As Figure 2-3, a kind of multi-arm bores the preparation method of puncheon centralizing device gum cover, including step:
Step 1, employing are scrapped aggregate conveyer belt and are cut into aggregate conveyer belt square 1；
Step 2, offer drilling rod through hole 2 in described aggregate conveyer belt square 1 center；
Step 3, at described aggregate conveyer belt square 1 wherein two angles on one side, offer one respectively
Individual installing hole 3；
Step 4, by nine pieces of aggregate conveyer belt square 1 superpositions, use bolt 4 to pass through installing hole
The aggregate conveyer belt square 1 of superposition one is concatenated and fixing to make puncheon centralizing device gum cover by 3.
Above-described detailed description of the invention, to the purpose of the present invention, technical scheme and useful effect
Fruit is further described, and be it should be understood that the tool that the foregoing is only the present invention
Body embodiment, the protection domain being not intended to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. done, should be included in this
Within the protection domain of invention.
Claims (5)
1. a multi-arm bores puncheon centralizing device gum cover, it is characterised in that: use and scrap aggregate conveyer belt
It is cut into aggregate conveyer belt square (1), at described aggregate conveyer belt square (1) center
Place offers drilling rod through hole (2), described aggregate conveyer belt square (1) wherein two
An installing hole (3) is offered respectively, by aggregate conveyer belt square (1) of more than two pieces at angle
Superposition, uses bolt (4) by installing hole (3) by the aggregate conveyer belt side of superposition one
Block (1) concatenation is fixing.
A kind of multi-arm the most according to claim 1 bores puncheon centralizing device gum cover, it is characterised in that:
The described wide and a height of 8cm of aggregate conveyer belt square (1), drilling rod through hole (2) diameter 4cm.
A kind of multi-arm the most according to claim 1 bores puncheon centralizing device gum cover, it is characterised in that:
Described aggregate conveyer belt square (1) installing hole (3) a diameter of 0.6cm, described installation
The adjacent both sides of hole centre-to-centre spacing in hole (3) are 1cm.
4. boring puncheon centralizing device gum cover according to a kind of multi-arm described in any one of claim 1-3, it is special
Levy and be: described puncheon centralizing device gum cover uses 9 pieces of aggregates conveyer belt square (1) to be formed by stacking.
5. a multi-arm bores the preparation method of puncheon centralizing device gum cover, it is characterised in that include step:
Step 1, employing are scrapped aggregate conveyer belt and are cut into aggregate conveyer belt square (1)；
Step 2, offer drilling rod through hole (2) in described aggregate conveyer belt square (1) center；
Step 3, open respectively at described aggregate conveyer belt square (1) wherein two angles on one side
If an installing hole (3)；
Step 4, by aggregate conveyer belt square (1) superpositions of more than two pieces, use bolt (4)
Made fixing for aggregate conveyer belt square (1) concatenation of superposition one by installing hole (3)
Puncheon centralizing device gum cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610262069.0A CN105927168B (en) | 2016-04-26 | 2016-04-26 | A kind of multi-arm bores puncheon centralizing device gum cover and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610262069.0A CN105927168B (en) | 2016-04-26 | 2016-04-26 | A kind of multi-arm bores puncheon centralizing device gum cover and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105927168A true CN105927168A (en) | 2016-09-07 |
| CN105927168B CN105927168B (en) | 2017-11-10 |
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| CN201610262069.0A Active CN105927168B (en) | 2016-04-26 | 2016-04-26 | A kind of multi-arm bores puncheon centralizing device gum cover and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB525800A (en) * | 1939-03-01 | 1940-09-04 | George Drewett | Improvements in the construction of externally screw-threaded members |
| CN201056984Y (en) * | 2006-11-24 | 2008-05-07 | 鲍伟 | Gas-liquid linkage rock drill vehicle |
| CN202117574U (en) * | 2011-06-22 | 2012-01-18 | 石家庄煤矿机械有限责任公司 | Drill rod rapid-change device for coal mine |
| CN202510047U (en) * | 2012-03-17 | 2012-10-31 | 鞍钢集团矿业公司 | Pressing plate type drill rod supporting rubber block fixing device |
| CN103628828A (en) * | 2012-08-28 | 2014-03-12 | 湖北兴发化工集团股份有限公司 | Drill rod lifter of drill jumbo |
| CN104612586A (en) * | 2014-11-13 | 2015-05-13 | 青岛达邦钻机有限责任公司 | Whole-section quick-drilling drill carriage for parallel cut blasting of large empty holes in roadway |
-
2016
- 2016-04-26 CN CN201610262069.0A patent/CN105927168B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB525800A (en) * | 1939-03-01 | 1940-09-04 | George Drewett | Improvements in the construction of externally screw-threaded members |
| CN201056984Y (en) * | 2006-11-24 | 2008-05-07 | 鲍伟 | Gas-liquid linkage rock drill vehicle |
| CN202117574U (en) * | 2011-06-22 | 2012-01-18 | 石家庄煤矿机械有限责任公司 | Drill rod rapid-change device for coal mine |
| CN202510047U (en) * | 2012-03-17 | 2012-10-31 | 鞍钢集团矿业公司 | Pressing plate type drill rod supporting rubber block fixing device |
| CN103628828A (en) * | 2012-08-28 | 2014-03-12 | 湖北兴发化工集团股份有限公司 | Drill rod lifter of drill jumbo |
| CN104612586A (en) * | 2014-11-13 | 2015-05-13 | 青岛达邦钻机有限责任公司 | Whole-section quick-drilling drill carriage for parallel cut blasting of large empty holes in roadway |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105927168B (en) | 2017-11-10 |
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