CN113863855A - Gantry type mining hydraulic drill carriage - Google Patents
Gantry type mining hydraulic drill carriage Download PDFInfo
- Publication number
- CN113863855A CN113863855A CN202111234665.5A CN202111234665A CN113863855A CN 113863855 A CN113863855 A CN 113863855A CN 202111234665 A CN202111234665 A CN 202111234665A CN 113863855 A CN113863855 A CN 113863855A
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- oil cylinder
- drilling
- vertical plate
- drill carriage
- plate
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- 238000005065 mining Methods 0.000 title claims abstract description 34
- 238000005553 drilling Methods 0.000 claims abstract description 89
- 230000007246 mechanism Effects 0.000 claims abstract description 45
- 239000003245 coal Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 description 7
- 238000005422 blasting Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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Classifications
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- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
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- 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
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
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- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/086—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder
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- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/10—Slips; Spiders ; Catching devices
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- 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
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/026—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting having auxiliary platforms, e.g. for observation purposes
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a gantry type mining hydraulic drill carriage which comprises a gantry support, a front drilling machine, a rear drilling machine, a hydraulic station and two parallel crawler traveling mechanisms, wherein traveling motors are arranged on the two crawler traveling mechanisms, the gantry support consists of two support legs and a platform, the lower ends of the two support legs are arranged on the two crawler traveling mechanisms, the platform is horizontally fixed at the upper ends of the two support legs, the hydraulic station is arranged on the platform, the front drilling machine and the rear drilling machine are used for drilling a roadway roof and have the same structure, and a cavity for accommodating a reversed loader for transporting coal is formed between the two support legs of the gantry support and the platform. According to the gantry type mining hydraulic drill carriage, the space for the coal mine transfer conveyor to pass through is formed between the two support legs between the gantries and the platform, so that the hydraulic drill carriage can cross the transfer conveyor to perform drilling operation, and the technical problem that the hydraulic drill carriage and the transfer conveyor cannot be in the same position area of a roadway to perform operation is solved.
Description
Technical Field
The invention relates to a gantry type mining hydraulic drill carriage, in particular to a gantry type mining hydraulic drill carriage.
Background
In the process of mining a coal mine, firstly, a tunnel needs to be excavated, in the process of excavating the tunnel, the tunnel with a certain width is excavated by using an excavating machine, then, the top wall and the side wall of the tunnel are supported, and meanwhile, advanced pre-splitting is carried out on a tunnel top plate, namely, the tunnel top plate and a top plate of a coal mining area are cut apart. In the process of cutting, energy-gathering blasting is usually adopted for realizing the method, a series of drill holes (commonly called blast holes) are drilled at equal intervals on two sides of the top wall of the roadway at first, then detonators with the directional blasting function are plugged in the drill holes, and the top plate of the roadway is separated from the top plate of the adjacent coal mining area, so that the formed roadway cannot be influenced by the collapse of the top plate of the goaf.
In the process of drilling the top wall of the roadway, a hydraulic drill carriage is needed, for example, the invention patent document with the patent number of CNCN201510968598.8 discloses a hydraulic drill carriage for drilling a coal mine. However, since cross operation exists in the process of tunneling a roadway, the heading machine is arranged at the forefront, a coal mine excavated by the heading machine needs to be transported away by a belt-type transfer machine, the front end of the transfer machine is closely adjacent to the heading machine, and the hydraulic drill carriage for drilling is positioned behind the heading machine, so that during the process of drilling by the hydraulic drill carriage, drilling needs to be carried out across the transfer machine, which can cause the situation that the conventional hydraulic drill carriage cannot reach the side wall of the roadway, and normal drilling cannot be carried out.
Disclosure of Invention
The invention provides a gantry type mining hydraulic drill carriage for overcoming the defects of the technical problems.
The invention relates to a gantry type mining hydraulic drill carriage which comprises a gantry support, a front drilling machine, a rear drilling machine, a hydraulic station and two parallel crawler traveling mechanisms, wherein traveling motors are arranged on the two crawler traveling mechanisms, the gantry support consists of two support legs and a platform, the lower ends of the two support legs are arranged on the two crawler traveling mechanisms, the platform is horizontally fixed at the upper ends of the two support legs, the hydraulic station is arranged on the platform, the front drilling machine and the rear drilling machine are used for drilling a roadway roof and have the same structure, and a cavity for accommodating a reversed loader for transporting coal is formed between the two support legs of the gantry support and the platform.
The gantry type mining hydraulic drill carriage comprises a front drill and a rear drill, wherein the front drill and the rear drill are respectively composed of a square beam, an inner vertical plate, an outer vertical plate, an outward moving oil cylinder, an inclined oil cylinder, a rotary motor and a drilling mechanism, the square beam is positioned on the upper surface of a platform, first guide plates for positioning and guiding the square beam are fixed on the platforms on two sides of the square beam, and two ends of the outward moving oil cylinder are respectively hinged to the platform and the square beam; the square beam is fixed with a plurality of connecting plates, the lower end of the inner vertical plate is hinged on the connecting plates, and the two ends of the inclined oil cylinder are respectively hinged on the middle positions of the inner surfaces of the square beam and the inner vertical plate; the outer vertical plate and the inner vertical plate are arranged in parallel, a shell and an output shaft of the rotary motor are respectively fixed with the outer surface of the inner vertical plate and the inner surface of the outer vertical plate, and the drilling mechanism is arranged on the outer surface of the outer vertical plate.
The gantry type mining hydraulic drill carriage comprises a drilling mechanism, a feeding oil cylinder, a lifting oil cylinder, a drilling motor and a drill rod clamping mechanism, wherein the I-beam is arranged on the outer surface of an outer vertical plate in a vertical state; two ends of the feeding oil cylinder are respectively hinged on the third guide plate and the I-shaped beam, and two ends of the lifting oil cylinder are respectively hinged on the I-shaped beam and the second guide plate.
According to the gantry type mining hydraulic drill carriage, wing plates are fixed on two sides of the lower end of the square beam and are positioned in the guide groove of the first guide plate; the outward moving oil cylinder is positioned in an inner cavity of the square beam.
The gantry type mining hydraulic drill carriage comprises a drill rod clamping mechanism, a drilling motor, a drilling rod clamping mechanism and a drilling mechanism, wherein the drilling rod clamping mechanism consists of a clamping oil cylinder, a lower support plate, an upper support plate and two arc-shaped clamping arms; a plurality of positioning rods are fixed on the upper support plate, and the top ends of the positioning rods are pointed ends.
According to the gantry type mining hydraulic drill carriage, the inner surface of the inner vertical plate is provided with a hydraulic valve group for controlling the stretching directions of the outward moving oil cylinder, the inclined oil cylinder, the feeding oil cylinder, the lifting oil cylinder and the clamping oil cylinder and the rotating directions of the rotating motor and the drilling motor, and each hydraulic valve of the hydraulic valve group is provided with an operating handle.
According to the gantry type mining hydraulic drill carriage, the square beam is fixedly connected with an operation platform for operating the front drilling machine or the rear drilling machine through the operating handle on the hydraulic valve bank.
The invention has the beneficial effects that: the gantry type mining hydraulic drill carriage is provided with a gantry support consisting of two support legs and a platform, the hydraulic drill carriage is driven to travel in a coal mine tunnel by arranging the lower ends of the two support legs on two crawler traveling mechanisms, and the drilling operation of a tunnel top plate is realized by arranging a hydraulic station, a front drilling machine and a rear drilling machine on the platform of the gantry support, so that the drilling is utilized for directional blasting to implement advanced presplitting; because a space for the coal mine transfer conveyor to pass through is formed between the two support legs between the gantries and the platform, the hydraulic drill carriage can cross over the transfer conveyor to carry out drilling operation, and the technical problem that the hydraulic drill carriage and the transfer conveyor cannot be in the same position area of a roadway to operate is solved.
Further, through setting up preceding rig and the back rig that comprises square beam, interior riser, outer riser, the hydro-cylinder that moves outward, the slope hydro-cylinder, rotary motor and drilling mechanism, utilize the flexible of the hydro-cylinder that moves outward, the adjustable drilling mechanism is with the distance in front of the lateral wall of tunnel, through the flexible of slope hydro-cylinder, the inclination of adjustable drilling mechanism along tunnel length direction, through rotary motor's rotation, the inclination of adjustable drilling mechanism along tunnel width direction to drill out the drilling unanimous with the direction of predetermineeing.
Furthermore, by arranging a drilling mechanism consisting of an I-beam, a feeding oil cylinder, a lifting oil cylinder, a drilling motor and a drill rod clamping mechanism, the heights of the I-beam and the drilling motor can be adjusted by the extension and contraction of the lifting oil cylinder so as to adapt to the drilling operation of roadways with different heights; the drill rod can be driven to perform driller operation by the simultaneous operation of the feeding oil cylinder and the drilling motor.
Drawings
FIG. 1 is a front view of a gantry type mining hydraulic drill rig of the present invention;
FIG. 2 is a rear view of the gantry type mining hydraulic drill rig of the present invention;
FIG. 3 is a left side view of the gantry type mining hydraulic drill rig of the present invention;
FIG. 4 is a right side view of the gantry type mining hydraulic drill rig of the present invention;
FIG. 5 is a top view of a gantry type mining hydraulic drill rig of the present invention;
FIG. 6 is a bottom view of a gantry type mining hydraulic drill rig of the present invention;
FIG. 7 is a perspective view of a gantry type mining hydraulic drill rig of the present invention;
FIG. 8 is a schematic view of the front drill rig in connection with the platform of the present invention;
FIGS. 9 and 10 are schematic structural views of the front drilling machine of the present invention;
FIG. 11 is a schematic view of the pipe gripping apparatus of the present invention.
In the figure: the drilling machine comprises a crawler traveling mechanism 1, a gantry support 2, a traveling motor 3, supporting legs 4, a platform 5, a front drilling machine 6, a rear drilling machine 7, a hydraulic station 8, an operation platform 9, a square beam 10, an inner vertical plate 11, an outer vertical plate 12, a drill rod clamping mechanism 13, an outer moving oil cylinder 14, an inclined oil cylinder 15, a rotary motor 16, a feeding oil cylinder 17, a lifting oil cylinder 18, a drilling motor 19, a first guide plate 20, a wing plate 21, a connecting plate 22, a second guide plate 23, a third guide plate 24, an I-shaped beam 25, a hydraulic valve bank 26, a clamping oil cylinder 27, a lower support plate 28, an upper support plate 29, an arc-shaped clamping arm 30, a clamping cavity 31 and a positioning rod 32.
Detailed Description
The invention is further described with reference to the following figures and examples.
As shown in fig. 1 to 7, a front view, a rear view, a left view, a right view, a top view, a bottom view and a three-dimensional view of the gantry type hydraulic drill carriage for mining are respectively given, the gantry type hydraulic drill carriage for mining shown in the invention comprises two crawler traveling mechanisms 1, a gantry support 2, a front drilling machine 6, a rear drilling machine 7 and a hydraulic station 8, the crawler traveling mechanisms 1 comprise crawlers and traveling motors 3, the two crawler traveling mechanisms 1 are arranged in parallel, the traveling motors 3 adopt hydraulic motors, the forward movement or the backward movement of the hydraulic drill carriage is realized through the forward rotation or the overturn at the same speed of the two traveling motors 3, and the steering is realized through the differential motion of the two traveling motors 3. The gantry support 2 is composed of two legs 4 and a platform 5, the lower ends of the two legs 4 are fixed on the two crawler belt walking mechanisms 1, and the platform 5 is fixed at the upper ends of the two legs 4 in a horizontal state. The front drilling machine 6 and the rear drilling machine 7 are arranged at the front end and the rear end of the same side of the platform 5, the hydraulic station 8 is arranged on the platform 5, and the front drilling machine 6 and the rear drilling machine 7 are identical in structure.
Due to the adoption of the gantry support 2 consisting of the two support legs 4 and the platform 5, a large space is formed between the two support legs 4 and the platform 5, so that a transfer conveyor for transporting coal mines can pass through the space, the simultaneous operation of the transfer conveyor and the hydraulic drill carriage at the same position of a roadway is realized, and the problem that the hydraulic drill carriage cannot perform drilling operation at the position with the transfer conveyor is solved.
If it is desired to drill a hole in the roof of the roadway in accordance with a predetermined direction, this requires that the front drill 6 and the rear drill 7 can be adjusted in position from a plurality of angles. As shown in fig. 8, a schematic structural diagram of a front drilling machine and a platform in the invention is shown, fig. 9 and fig. 10 show a schematic structural diagram of the front drilling machine in the invention, the front drilling machine 6 and a rear drilling machine 7 have the same structure, the shown front drilling machine 6 is composed of a square beam 10, an inner vertical plate 11, an outer vertical plate 12, an outward moving oil cylinder 14, an inclined oil cylinder 15, a rotating motor 16 and a drilling mechanism, the square beam 10 is positioned on the upper surface of the platform 5, the length direction of the square beam 10 is perpendicular to the length direction of the crawler travel mechanism 1, wing plates 21 are arranged on both sides of the bottom of the square beam 10, a first guide plate 20 for guiding the square beam 10 is arranged on the platform 5, and the wing plates 21 are positioned in a cavity of the first guide plate 20, so that the first guide plate 20 is matched with the wing plates 21 to limit and guide the wing plates 21. Two ends of the outward moving oil cylinder 14 are respectively hinged on the platform 5 and the square beam 10, so that the front drilling machine 6 can be driven to move outwards through the extension and retraction of the outward moving oil cylinder 14, and the drilling position in the width direction of the roadway can be adjusted.
A plurality of L-shaped connecting plates 22 are fixed on the square beam 10, the lower ends of the inner vertical plates 11 are hinged to the connecting plates 22, the inner vertical plates 11 and the outer vertical plates 12 are vertically arranged, and the inner vertical plates 11 and the outer vertical plates 12 are arranged in parallel. Two ends of the inclined oil cylinder 15 are respectively hinged to the middle parts of the inner side surfaces of the square beam 10 and the inner vertical plate 11. The outer vertical plate 12 is connected with the inner vertical plate 11 through a rotary motor 16, a shell and an output shaft of the rotary motor 16 are respectively fixed on the outer surface of the inner vertical plate 11 and the inner surface of the outer vertical plate 12, and the drilling mechanism is arranged on the outer surface of the outer vertical plate 12. Thus, the inclination angle of the drilling mechanism in the length direction of the roadway can be adjusted by the synchronous movement of the drilling mechanism, the outer vertical plate 12 and the inner vertical plate 11 through the extension and retraction of the inclined oil cylinder 15; the inclination angle of the drilling mechanism in the width direction of the roadway can be adjusted by the synchronous movement of the drilling mechanism and the outer vertical plate 12 through the forward rotation and the reverse rotation of the rotary motor 16.
The drilling mechanism comprises an I-beam 25, a lifting oil cylinder 18, a feeding oil cylinder 17, a drilling motor 19 and a drill rod clamping mechanism 13, wherein the I-beam 25 is arranged on the outer surface of an outer vertical plate 12 in the vertical direction, a second guide plate 23 for limiting and guiding the I-beam 25 is fixed on the outer surface of the outer vertical plate 12, and two ends of the lifting oil cylinder 18 are hinged to the lower end of the second guide plate 23 and the upper end of the I-beam 25 respectively, so that the I-beam 25 can be driven to move up and down through the extension and retraction of the lifting oil cylinder 18 to adapt to drilling operation at different roadway heights.
The drilling motor 19 is shown fixed on a third guide plate 24 via a base, the third guide plate 24 is fitted with an i-beam 25, and the two ends of the feed cylinder 17 are hinged to the third guide plate 24 and the upper end of the i-beam 25, respectively. Therefore, during drilling operation, the lower end of the drill rod is fixedly connected with an output shaft of the drilling motor 19, the drill rod clamping mechanism 13 limits the upper part of the drill rod, the drilling motor 19 drives the drill rod to rotate, and meanwhile, the feeding oil cylinder 17 drives the drilling motor 19 and the drill rod to move upwards synchronously so as to achieve drilling operation.
As shown in fig. 11, a schematic structural diagram of the rod clamping mechanism of the present invention is shown, the rod clamping mechanism is composed of a lower support plate 28, an upper support plate 29, two arc-shaped clamping arms 30 and a clamping cylinder 27, the lower support plate 28 and the upper support plate 29 are arranged in parallel, the two arc-shaped clamping arms 30 are located between the lower support plate 28 and the upper support plate 29, and the middle parts of the two arc-shaped clamping arms 30 are hinged to the upper support plate 29 and the lower support plate 28 through a rotating shaft. Two ends of the clamping cylinder 27 are respectively hinged to the rear ends of the two arc-shaped clamping arms 30, a clamping cavity 31 is formed between the front ends of the two arc-shaped clamping arms 30, and the center of the clamping cavity 31 is coaxial with the center line of the output shaft of the drilling motor 19. Thus, when the telescopic rod of the clamping oil cylinder 27 extends, the clamping of the drill rod can be realized.
Claims (7)
1. The utility model provides a mining hydraulic drill carriage of planer-type which characterized in that: the coal mine underground coal mine.
2. The gantry type mining hydraulic drill carriage of claim 1, characterized in that: the front drilling machine (6) and the rear drilling machine (7) are composed of a square beam (10), an inner vertical plate (11), an outer vertical plate (12), an outward moving oil cylinder (14), an inclined oil cylinder (15), a rotary motor (16) and a drilling mechanism, the square beam is positioned on the upper surface of the platform (5), first guide plates (20) for positioning and guiding the square beam are fixed on the platforms on two sides of the square beam, and two ends of the outward moving oil cylinder are hinged to the platform and the square beam respectively; a plurality of connecting plates (22) are fixed on the square beam, the lower end of the inner vertical plate is hinged on the connecting plates, and two ends of the inclined oil cylinder are respectively hinged on the middle positions of the inner surfaces of the square beam and the inner vertical plate; the outer vertical plate and the inner vertical plate are arranged in parallel, a shell and an output shaft of the rotary motor are respectively fixed with the outer surface of the inner vertical plate and the inner surface of the outer vertical plate, and the drilling mechanism is arranged on the outer surface of the outer vertical plate.
3. The gantry type mining hydraulic drill carriage of claim 2, characterized in that: the drilling mechanism consists of an I-beam (25), a feeding oil cylinder (17), a lifting oil cylinder (18), a drilling motor (19) and a drill rod clamping mechanism (13), the I-beam is arranged on the outer surface of an outer vertical plate (12) in a vertical state, a second guide plate (23) for limiting and guiding the I-beam is fixed on the outer surface of the outer vertical plate, the drilling motor is arranged on the I-beam (25) through a third guide plate (24), and the drill rod clamping mechanism is fixed at the upper end of the I-beam; two ends of the feeding oil cylinder are respectively hinged on the third guide plate and the I-shaped beam, and two ends of the lifting oil cylinder are respectively hinged on the I-shaped beam and the second guide plate.
4. The gantry type mining hydraulic drill carriage of claim 2, characterized in that: wing plates (21) are fixed on two sides of the lower end of the square beam (10) and are positioned in the guide grooves of the first guide plates (20); the outward moving oil cylinder (14) is located in an inner cavity of the square beam.
5. The gantry type mining hydraulic drill carriage of claim 3, characterized in that: the drill rod clamping mechanism (13) consists of a clamping oil cylinder (27), a lower supporting plate (28), an upper supporting plate (29) and two arc-shaped clamping arms (30), the lower supporting plate and the upper supporting plate are arranged in parallel, the middle parts of the two arc-shaped clamping arms are hinged to the upper supporting plate and the lower supporting plate, a clamping cavity (31) for clamping and guiding a drill rod is formed between the front ends of the two arc-shaped clamping arms, the two ends of the clamping oil cylinder are respectively hinged to the rear ends of the two arc-shaped clamping arms, and the center of the clamping cavity is coaxial with an output shaft of the drilling motor (19); a plurality of positioning rods (32) are fixed on the upper support plate, and the top ends of the positioning rods are pointed ends.
6. The gantry type mining hydraulic drill carriage of claim 5, characterized in that: the inner surface of the inner vertical plate (11) is provided with a hydraulic valve group (26) for controlling the extension and retraction directions of the outward moving oil cylinder (14), the inclined oil cylinder (15), the feeding oil cylinder (17), the lifting oil cylinder (18) and the clamping oil cylinder (27) and the rotation directions of the rotating motor (16) and the drilling motor (19), and each hydraulic valve of the hydraulic valve group is provided with an operating handle.
7. The gantry type mining hydraulic drill carriage of claim 5, characterized in that: the square beam (10) is fixedly connected with an operating platform (9) which controls the front drilling machine (6) or the rear drilling machine (7) through a control handle on the hydraulic valve group (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111234665.5A CN113863855B (en) | 2021-10-22 | 2021-10-22 | Gantry type mining hydraulic drill carriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111234665.5A CN113863855B (en) | 2021-10-22 | 2021-10-22 | Gantry type mining hydraulic drill carriage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113863855A true CN113863855A (en) | 2021-12-31 |
| CN113863855B CN113863855B (en) | 2024-05-07 |
Family
ID=78997267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111234665.5A Active CN113863855B (en) | 2021-10-22 | 2021-10-22 | Gantry type mining hydraulic drill carriage |
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| Country | Link |
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| CN (1) | CN113863855B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118911595A (en) * | 2024-09-29 | 2024-11-08 | 江苏中贵重工有限公司 | Straddling type tunnel drill carriage for shield tunneling tunnel and construction method |
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