CN113123738A - Quick shifting device for loading and unloading drill rod - Google Patents
Quick shifting device for loading and unloading drill rod Download PDFInfo
- Publication number
- CN113123738A CN113123738A CN202110546042.5A CN202110546042A CN113123738A CN 113123738 A CN113123738 A CN 113123738A CN 202110546042 A CN202110546042 A CN 202110546042A CN 113123738 A CN113123738 A CN 113123738A
- Authority
- CN
- China
- Prior art keywords
- side plate
- drill rod
- lifter
- connecting unit
- pulley
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/14—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
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)
- Earth Drilling (AREA)
Abstract
The invention discloses a drill rod loading and unloading rapid shifting device which comprises a track, a shifting trolley, a rapid lifter and a manipulator, wherein the track is arranged on the shifting trolley; the track is fixedly arranged at the top of the operation field; the displacement trolley is provided with a pulley, and the pulley is positioned on the rail and slides on the rail; the quick lifter is positioned below the displacement trolley and is connected with the displacement trolley; the manipulator is located the below of fast lift and is connected with fast lift. Through setting up track, displacement dolly, quick riser and manipulator, realize loading and unloading the mechanized operation of drilling rod, reduce manpower and time cost, reduced staff's intensity of labour, ensured safety in production, factor of safety when improving the operation.
Description
Technical Field
The invention relates to the technical field of coal mines, in particular to a drill rod loading and unloading rapid shifting device.
Background
If the publication number is CN2538946Y, it discloses a kelly bar shifter, it utilizes mechanical power to unbuckle the kelly bar from the well head drilling rod, lift a certain height, the hook is hung on the kelly bar, operate this apparatus to pull the kelly bar to the rat hole in the drill rod joint, lower the kelly bar to make the kelly bar joint to insert and leave in the rat hole drill rod joint, lift the kelly bar and the drill rod in the rat hole and return to the well head and finish the process of connecting one single piece at a time, but set up the mechanical device to assist the installation of the drill rod at the place where the drill rod is installed, in the actual production, such as ZDY12000LD, all-hydraulic track type tunnel rig for the coal mine, possess the ability to construct the directional long bore hole of 2000 meters, can meet the special drilling operation requirement of the coal mine underground; the drilling machine is matched with a phi 89 mm-1500 mm milling groove drill rod, and the weight of each drill rod is about 40 KG; calculating according to the average 45m footage of each small shift, the staff with footage operates 30 times per shift, and the accumulated carrying weight reaches more than 1 ton; when the drill is pulled out, the average pulling out of the drill per shift is about 300 meters, which is equivalent to the weight of 9 tons of the drill to be conveyed, and the labor intensity is conceivable. Meanwhile, under the influence of factors such as the size and weight of the drill rod, fatigue operation and the like, accidents of hurting hands and feet by crushing easily occur in the ruler loading and unloading process. The working mode of loading and unloading the drill rod has high labor intensity and low safety coefficient, and how to reduce the labor intensity of workers during loading and unloading the drill rod and realize the quick displacement of the drill rod is a problem which needs to be solved urgently by the drilling machine.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: when the existing drill rod is used for loading and unloading, the labor intensity of workers is high, and the automation degree is low.
In order to solve the technical problems, the invention provides the following technical scheme:
a quick shifting device for loading and unloading a drill rod comprises a track, a shifting trolley, a quick lifter and a manipulator;
the track is fixedly arranged at the top of the operation field; the displacement trolley is provided with a pulley, and the pulley is positioned on the rail and slides on the rail; the quick lifter is positioned below the displacement trolley and is connected with the displacement trolley; the manipulator is located the below of fast lift and is connected with fast lift.
Furthermore, the manipulator comprises a first connecting unit, a first movable sheet, a second movable sheet, a first curved arm claw and a second curved arm claw;
the first connecting unit is connected with the quick lifter, the bottom of the first connecting unit is rotatably connected with a first movable sheet and a second movable sheet, the first movable sheet and the second movable sheet share a rotating shaft, one end of the first movable sheet, far away from the rotating shaft, is rotatably connected with a first curved arm claw, one end of the second movable sheet, far away from the rotating shaft, is rotatably connected with a second curved arm claw, the first curved arm claw and the second curved arm claw are crossed and can rotate along a crossed shaft, and the crossed shaft is parallel to the rotating shaft; the first curved arm jaw has a first clamping portion and the second curved arm jaw has a second clamping portion.
Furthermore, one side of the first clamping part and one side of the second clamping part, which clamp the drill rod, are both concave surfaces.
Further, the displacement trolley also comprises a first side plate, a second side plate and a second connecting unit;
the first side plate and the second side plate are arranged in parallel, a plurality of pairs of through holes are formed in the symmetrical positions of the first side plate and the second side plate, and a plurality of bolts penetrate through the through holes in the symmetrical positions of the first side plate and the second side plate in a one-to-one correspondence mode and are fixed through nuts; the pulley is positioned between the first side plate and the second side plate, and two ends of the pulley are respectively and rotatably arranged at symmetrical positions of the first side plate and the second side plate; the second connecting unit is of a U-shaped structure, mounting holes are formed in U-shaped feet of the second connecting unit, bolts sequentially penetrate through the through holes of the first side plate, the mounting holes of the second connecting unit and the through holes in the symmetrical positions of the second side plate and are fixed through nuts, and the second connecting unit is connected with the quick lifter.
Furthermore, the displacement trolley further comprises a brake pin, the brake pin is fixedly installed between the two bolts and is located below the pulley, a plurality of limiting grooves are uniformly formed in the circumferential direction of the pulley, and the movable pin of the brake pin extends into the limiting grooves to stop the pulley.
Further, the quick lifter comprises a lifter body, an upper hook is arranged above the lifter body, a lower hook is arranged below the lifter body, the upper hook is connected with the second connecting unit, and the lower hook is connected with the first connecting unit.
Further, the lifter uses pressure wind as a driving force.
Preferably, the rail is a U-shaped rail.
Compared with the prior art, the invention has the beneficial effects that: the drill rod clamping device is characterized in that the rail, the displacement trolley, the rapid lifter and the manipulator are arranged, the displacement trolley moves on the rail to realize the function of horizontal movement of the drill rod, the rapid lifter ascends and descends to realize the function of ascending and descending of the drill rod, and the manipulator realizes the fixation of the first clamping part and the second clamping part on the drill rod through the self weight of the grabbed drill rod, so that the stability of the drill rod in the grabbing, lifting and moving processes is ensured;
a phi 89 mm-1500 mm milling groove drill rod matched with a ZDY15000LD type directional drilling machine has the mass of about 40Kg of a single rod. The drill rod is required to be added 30 times per shift according to the average advancing rule of 45m per shift, which corresponds to the weight of more than 1 t. On the other hand, the average trip per trip was about 300m, which corresponds to the weight of the carrier 9 t. By using the device, the labor intensity of workers for loading and unloading the drill rod can be greatly reduced;
the weight of the non-magnetic outer pipe is about 85kg, and although the assembly and disassembly frequency is not high, 4 to 5 persons are often required to work together each time the assembly and disassembly are carried out. By using the device, 2 people can complete the operation, thereby reducing the waste of human resources;
meanwhile, the device reduces the risk that the drill rod slips and falls to hurt people due to negligence of workers in the process of carrying the drill rod, further ensures safe production and improves the safety factor during operation.
Drawings
FIG. 1 is a schematic overall structure diagram of an embodiment of a drill rod loading and unloading quick-shifting device according to the present invention;
FIG. 2 is a top view of a track of a drill rod loading and unloading quick-shifting device according to an embodiment of the present invention;
FIG. 3 is a front view of a displacement carriage of the drill rod loading and unloading quick displacement device according to the embodiment of the invention;
FIG. 4 is a front view of a fast riser of a drill rod loading and unloading fast shifting apparatus according to an embodiment of the present invention;
fig. 5 is a front view of a manipulator of a drill rod loading and unloading quick-shifting device according to an embodiment of the invention.
Detailed Description
In order to facilitate the understanding of the technical solutions of the present invention for those skilled in the art, the technical solutions of the present invention will be further described with reference to the drawings attached to the specification.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1, the embodiment discloses a drill rod loading and unloading rapid displacement device, which comprises a track 1, a displacement trolley 2, a rapid lifter 3 and a manipulator 4;
the track 1 is fixed on the top of a roadway of an underground coal mine operation field; the displacement trolley 2 can slide on the track 1; the rapid lifter 3 is positioned below the displacement trolley 2 and is connected with the displacement trolley 2; the manipulator 4 is located below the fast lifter 3 and is connected with the fast lifter 3.
Referring to fig. 2, the rail 1 is a U-shaped rail, and the U-shaped rail can improve the movable coverage of the displacement carriage 2, thereby improving the practicability. The U-shaped rail is fixed on the top of a tunnel in an underground coal mine operation field.
Referring to fig. 3, the displacement carriage 2 includes a first side plate 21, a second side plate 22, a pulley 23, a second connecting unit 24, and a brake pin 25;
the first side plate 21 and the second side plate 22 are arranged in parallel, a plurality of pairs of through holes are formed in symmetrical positions of the first side plate 21 and the second side plate 22, a plurality of bolts penetrate through the through holes in the symmetrical positions of the first side plate 21 and the second side plate 22 in a one-to-one correspondence mode and are fixed through nuts, the pulley 23 is located between the first side plate 21 and the second side plate 22, two ends of the pulley 23 are respectively rotatably mounted on the symmetrical positions of the first side plate 21 and the second side plate 22, the second connecting unit 24 is of a U-shaped structure, a U-shaped foot of the second connecting unit 24 is provided with a mounting hole, the bolt penetrates through the mounting hole of the second connecting unit 24 and simultaneously penetrates through the through holes in the symmetrical positions of the first side plate 21 and the second side plate 22 and is fixed through nuts, and; the brake pin 25 is located between the two bolts, the two bolts are respectively attached to one side of the brake pin 25, so that the two bolts clamp and fix the brake pin 25, a plurality of limiting grooves are uniformly formed in the circumferential direction of the pulley 23, and the head of the movable pin of the brake pin 25 can extend into the limiting grooves to stop the pulley 23.
Referring to fig. 4, the fast lifter 3 includes a lifter 31, an upper hook 32 is disposed above the lifter 31, a lower hook 33 is disposed below the lifter 31, the upper hook 32 is connected to the second connection unit 24, and the lower hook 33 is connected to the first connection unit 41; the lifter 31 uses pressure wind as a driving force.
Referring to fig. 5, the manipulator 4 includes a first connecting unit 41, a first movable piece 42, a second movable piece 43, a first curved arm claw 45 and a second curved arm claw 44, one end of the first movable piece 42 is rotatably connected with one end of the second movable piece 43, the first connecting unit 41 includes two mounting pieces, one ends of the two mounting pieces are respectively located at two sides of the first movable piece 42 and the second movable piece 43 and rotatably mounted at the rotating shafts of the first movable piece 42 and the second movable piece 43, the other ends of the two mounting pieces are fixedly connected through a pin shaft, and the lower hook 33 can extend between the two mounting pieces and be fixed with the pin shaft; first curve arm claw 45 and second curve arm claw 44 are L shape structure, first curve arm claw 45 rotates to be connected in the one end that first movable plate 42 kept away from the pivot, second curve arm claw 44 rotates to be installed in the one end that second movable plate 43 kept away from the pivot, the connecting hole has all been seted up at the middle part of first curve arm claw 45 and second curve arm claw 44, first curve arm claw 45 and second curve arm claw 44 intersect and pass through the round pin hub fixation in connecting hole department, the first clamping part of one side that the below of first curve arm claw 45 is close to second curve arm claw 44 has the concave surface, the second clamping part of one side that the below of second curve arm claw 44 is close to second curve arm claw 45 has the concave surface.
The working principle of the embodiment is as follows: the track 1 is horizontally and fixedly installed at the top of an underground operation field, the pulley 23 of the displacement trolley 2 is placed on the track 1, the pulley 23 slides on the track 1 to drive the whole displacement trolley 2 to move along the track of the track 1, so that the rapid lifter 3 is driven to move along the track of the track 1, the manipulator 4 can clamp a drill rod, and the drill rod can horizontally move; the lifter 31 is started, the lower hook 33 can be lifted and lowered, and the lower hook 33 is connected with the manipulator 4, so that the manipulator 4 can be lifted and lowered, and the lifting and lowering of the drill rod are realized; the first connecting unit 41 is connected with the lower hook 33, when the lower hook 33 ascends, the first connecting unit 41 is driven to ascend, the connecting position of the rotating shafts of the first movable sheet 42 and the second movable sheet 43 is lifted, at the moment, the connecting point of the first movable sheet 42 and the first curved arm claw 45 and the connecting point of the second movable sheet 43 and the second curved arm claw 44 both have upward moving trends, at the moment, a drill rod is clamped by the first clamping part and the second clamping part which are positioned below, the self weight of the drill rod has a trend of pulling the first curved arm claw 45 and the second curved arm claw 44 downwards, and through the lever action of the crossed shafts, in the process that the manipulator 4 ascends upwards, the first clamping part and the second clamping part are close to each other to clamp the drill rod, the purpose of clamping the drill rod by using the self weight of the drill rod is achieved, and the drill rod is guaranteed not to fall down and hurt people in the moving process.
When the length is added, the lifting mechanism 3 starts the lifter 31 to drive the clamping mechanism 4 and the drill rod to ascend together after the clamping mechanism 4 grabs the drill rod, when the set height is reached, the brake pin 25 in the moving mechanism 2 is pulled out, so that the moving mechanism 2 moves on the track 1, when the drill rod reaches the drill rod buckling position, the brake pin 25 is started to realize braking, the moving mechanism 2 stops moving, and then the drill rod is manually rotated to carry out length adding operation; when the ruler is unloaded, the clamping mechanism 4 clamps the drill rod to be unloaded, the drill rod is manually rotated to carry out the shackle operation, after the shackle operation is completed, the brake pin 25 of the moving mechanism 2 is pulled out, the moving mechanism 2 moves on the track 1, when the drill rod reaches the storage position of the drill rod, the brake pin 25 is started to realize braking, the lifter 31 is started to realize the descending of the drill rod, and after the drill rod is stored at the designated position, the clamping mechanism 4 is loosened to complete the ruler unloading operation.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The above-mentioned embodiments only represent embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the concept of the present invention, and these embodiments are all within the protection scope of the present invention.
Claims (8)
1. The utility model provides a quick shifter is unloaded to drilling rod loading which characterized in that: comprises a track (1), a displacement trolley (2), a rapid lifter (3) and a manipulator (4);
the track (1) is fixedly arranged at the top of the operation field; the displacement trolley (2) is provided with a pulley (23), and the pulley (23) is positioned on the track (1) and can slide on the track (1); the rapid lifter (3) is positioned below the displacement trolley (2) and is connected with the displacement trolley (2); the manipulator (4) is positioned below the rapid lifter (3) and is connected with the rapid lifter (3).
2. The drill rod loading and unloading quick-shifting device of claim 1, wherein: the manipulator (4) comprises a first connecting unit (41), a first movable sheet (42), a second movable sheet (43), a first curved arm claw (45) and a second curved arm claw (44);
the first connecting unit (41) is connected with the quick lifter (3), the bottom of the first connecting unit (41) is rotatably connected with a first movable sheet (42) and a second movable sheet (43), the first movable sheet (42) and the second movable sheet (43) share a rotating shaft, one end, far away from the rotating shaft, of the first movable sheet (42) is rotatably connected with a first curved arm claw (45), one end, far away from the rotating shaft, of the second movable sheet (43) is rotatably connected with a second curved arm claw (44), the first curved arm claw (45) is crossed with the second curved arm claw (44) and can rotate along a crossed shaft, and the crossed shaft is parallel to the rotating shaft; the first curved arm claw (45) has a first clamping portion, and the second curved arm claw (44) has a second clamping portion.
3. The drill rod loading and unloading quick-shifting device of claim 2, wherein: one side of the first clamping part and one side of the second clamping part, which clamp the drill rod, are both concave surfaces.
4. The drill rod loading and unloading quick-shifting device of claim 1, wherein: the displacement trolley (2) further comprises a first side plate (21), a second side plate (22) and a second connecting unit (24);
the first side plate (21) and the second side plate (22) are arranged in parallel, a plurality of pairs of through holes are formed in the symmetrical positions of the first side plate (21) and the second side plate (22), and a plurality of bolts penetrate through the through holes in the symmetrical positions of the first side plate (21) and the second side plate (22) in a one-to-one correspondence mode and are fixed through nuts; the pulley (23) is positioned between the first side plate (21) and the second side plate (22), and two ends of the pulley (23) are respectively and rotatably arranged on the symmetrical positions of the first side plate (21) and the second side plate (22); the second connecting unit (24) is of a U-shaped structure, mounting holes are formed in U-shaped feet of the second connecting unit (24), bolts sequentially penetrate through holes of the first side plate (21), mounting holes of the second connecting unit (24) and through holes in symmetrical positions of the second side plate (22) and are fixed through nuts, and the second connecting unit (24) is connected with the quick lifter (3).
5. The drill rod loading and unloading quick-shifting device of claim 4, wherein: the displacement trolley (2) further comprises a brake pin (25), the brake pin (25) is fixedly installed between the two bolts and located below the pulley (23), a plurality of limiting grooves are uniformly formed in the circumferential direction of the pulley (23), and the movable pin of the brake pin (25) can extend into the limiting grooves to stop the pulley (23).
6. The drill rod loading and unloading quick-shifting device of claim 4, wherein: the rapid lifter (3) comprises a lifter (31), an upper hook (32) is arranged above the lifter (31), a lower hook (33) is arranged below the lifter (31), the upper hook (32) is connected with the second connecting unit (24), and the lower hook (33) is connected with the first connecting unit (41).
7. The drill rod loading and unloading quick-shifting device of claim 6, wherein: the lifter (31) uses pressure wind as a driving force.
8. The drill rod loading and unloading quick-shifting device of claim 1, wherein: the rail (1) is a U-shaped rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110546042.5A CN113123738A (en) | 2021-05-19 | 2021-05-19 | Quick shifting device for loading and unloading drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110546042.5A CN113123738A (en) | 2021-05-19 | 2021-05-19 | Quick shifting device for loading and unloading drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113123738A true CN113123738A (en) | 2021-07-16 |
Family
ID=76782674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110546042.5A Pending CN113123738A (en) | 2021-05-19 | 2021-05-19 | Quick shifting device for loading and unloading drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113123738A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU1642900A (en) * | 1999-02-17 | 2000-08-24 | Inco Limited | Drill rod loader |
| CN2591214Y (en) * | 2002-11-16 | 2003-12-10 | 田富林 | Handling apparatus for borewell drilling tool |
| CN103306616A (en) * | 2013-05-10 | 2013-09-18 | 淮南矿业(集团)有限责任公司 | Sleeve-pipe clamp and sleeve-pipe downing device |
| KR20150001234A (en) * | 2013-06-27 | 2015-01-06 | 최병진 | Drill rod mounting device of drill machine |
| CN106586536A (en) * | 2016-12-23 | 2017-04-26 | 中原工学院 | Small-sized farm carrying machine |
| CN207761689U (en) * | 2017-12-27 | 2018-08-24 | 中煤科工集团上海有限公司 | A kind of material transport system for small space inside development machine |
| CN109279500A (en) * | 2018-11-27 | 2019-01-29 | 新乡市豫新起重机械有限公司 | It is a kind of to load and unload the tongs and crane that use for circular object |
| CN112096317A (en) * | 2020-08-11 | 2020-12-18 | 四川宏华石油设备有限公司 | Drilling platform surface pipe column processing equipment |
| CN112360364A (en) * | 2020-11-03 | 2021-02-12 | 淮北林光钻探机电工程有限公司 | Automatic discharging device for drilling drill rods |
-
2021
- 2021-05-19 CN CN202110546042.5A patent/CN113123738A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU1642900A (en) * | 1999-02-17 | 2000-08-24 | Inco Limited | Drill rod loader |
| CN2591214Y (en) * | 2002-11-16 | 2003-12-10 | 田富林 | Handling apparatus for borewell drilling tool |
| CN103306616A (en) * | 2013-05-10 | 2013-09-18 | 淮南矿业(集团)有限责任公司 | Sleeve-pipe clamp and sleeve-pipe downing device |
| KR20150001234A (en) * | 2013-06-27 | 2015-01-06 | 최병진 | Drill rod mounting device of drill machine |
| CN106586536A (en) * | 2016-12-23 | 2017-04-26 | 中原工学院 | Small-sized farm carrying machine |
| CN207761689U (en) * | 2017-12-27 | 2018-08-24 | 中煤科工集团上海有限公司 | A kind of material transport system for small space inside development machine |
| CN109279500A (en) * | 2018-11-27 | 2019-01-29 | 新乡市豫新起重机械有限公司 | It is a kind of to load and unload the tongs and crane that use for circular object |
| CN112096317A (en) * | 2020-08-11 | 2020-12-18 | 四川宏华石油设备有限公司 | Drilling platform surface pipe column processing equipment |
| CN112360364A (en) * | 2020-11-03 | 2021-02-12 | 淮北林光钻探机电工程有限公司 | Automatic discharging device for drilling drill rods |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110043203A (en) | A kind of automated drilling rig and the method using automated drilling rig progress tubing string movement | |
| CN202544741U (en) | Door-shaped drive drilling machine with twin tower teeth | |
| CN105275415A (en) | Full-automatic continuous drilling rig | |
| CN211141352U (en) | Combined type track dismantling device used in shield construction method | |
| CN110295856B (en) | Hydraulic vertical lifting automatic workover rig | |
| CN104989296A (en) | Sucker rod maintenance operating vehicle | |
| CN211813109U (en) | Rotatory retractable davit | |
| CN101666208B (en) | Gear rack lifting drilling machine | |
| CN103170963A (en) | Two-arm manipulator | |
| CN103291210B (en) | Gate-type double-tower gear-driven drilling machine | |
| CN101769130B (en) | Method for conveying drill pipe used for oil drilling on/off drill stand | |
| CN203228226U (en) | Single-arm manipulator | |
| CN201627591U (en) | Pillar with fine-adjustment device | |
| CN113123738A (en) | Quick shifting device for loading and unloading drill rod | |
| CN201598992U (en) | Conveying mechanism for elevation of drill pipes for oil drilling | |
| CN215479244U (en) | Auxiliary operation platform device for monorail crane | |
| CN205370474U (en) | Rack and pinion formula drilling tool transporting device | |
| CN202500508U (en) | Automatic placing and taking device for drill rods | |
| CN205802741U (en) | The anti-skidding clamping device of mine hoist | |
| CN213386772U (en) | Dumping device | |
| CN114370241A (en) | Vehicle-mounted full-hydraulic workover rig | |
| CN111119883B (en) | Open pit coal mine end slope mining drill carriage | |
| CN206985545U (en) | Device for hoisting is erected in a kind of shifting of with brake mechanism | |
| CN209854554U (en) | Supplementary car of installing and removing of template | |
| CN103387114B (en) | A kind of chute installation device of drag conveyer at front part of coalface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210716 |
|
| RJ01 | Rejection of invention patent application after publication |