CN111608575A - Drilling rack for ensuring smooth blasting effect of roadbed and using method thereof - Google Patents
Drilling rack for ensuring smooth blasting effect of roadbed and using method thereof Download PDFInfo
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- CN111608575A CN111608575A CN202010463432.1A CN202010463432A CN111608575A CN 111608575 A CN111608575 A CN 111608575A CN 202010463432 A CN202010463432 A CN 202010463432A CN 111608575 A CN111608575 A CN 111608575A
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- 238000005553 drilling Methods 0.000 title claims abstract description 86
- 238000005422 blasting Methods 0.000 title claims abstract description 32
- 230000000694 effects Effects 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000010276 construction Methods 0.000 claims abstract description 24
- 238000004080 punching Methods 0.000 claims description 15
- 239000000428 dust Substances 0.000 claims description 9
- 239000002893 slag Substances 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009435 building construction Methods 0.000 abstract description 2
- 239000004575 stone Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- E21B15/04—Supports for the drilling machine, e.g. derricks or masts specially adapted for directional drilling, e.g. slant hole rigs
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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
- E21B15/04—Supports for the drilling machine, e.g. derricks or masts specially adapted for directional drilling, e.g. slant hole rigs
- E21B15/045—Hydraulic, pneumatic or electric circuits for their positioning
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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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
- E21B21/015—Means engaging the bore entrance, e.g. hoods for collecting dust
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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
- E21B7/024—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting having means for adapting to inclined terrain; having means for stabilizing the vehicle while drilling
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- 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 belongs to the technical field of building construction, and particularly relates to a drilling rack for ensuring the smooth blasting effect of a roadbed and a using method thereof. The construction by using a small-sized drilling machine can ensure that the bore diameter of the blast hole is controlled in a smaller range, the control of the smooth blasting effect is facilitated, and the device and the method play a great role in forming a good smooth blasting effect through the front and back smooth blasting contrast construction.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a drilling rack for ensuring smooth blasting effect of a roadbed and a using method thereof.
Background
The Yadu project (first stage) belongs to the mountainous terrain in the middle and west, mainly the mountains with heavy hills and large terrain fluctuation, and thus the quantity of stone engineering is huge. The stone cutting section is long, the height of the stone side slope is high, and in order to guarantee the appearance quality after blasting forming, fine construction control of the stone side slope is determined to be performed by adopting smooth blasting. The quality of the drilling hole directly influences the effect of the smooth blasting, and the precision requirement of the smooth blasting on the drilling hole is high, and the drilling precision is directly related to the drilling depth. Generally, the deeper the drilling is, the greater the drilling deviation is, and the worse the precision is; the deeper the drilling hole is, the more drill cuttings are remained in the hole, so that the utilization rate of the blast hole is reduced, and the overall effect of smooth blasting is obviously influenced; meanwhile, the deeper the drilling is, the more the drilling efficiency is obviously reduced.
The existing construction scheme adopts a large and medium-sized down-the-hole drill for construction. The opening line is firstly released on a construction platform after the common blasting is finished, and the position of the hole is released according to blasting parameters. And (4) using a down-the-hole drill to adjust the angle, and then performing construction.
The project stone square section rock belongs to the second hard rock, and if the blasting hole distance is too small or the hole diameter is too large, the stone square slope surface is easily damaged. In view of economic factors, the down-the-hole drill purchased for the project can only satisfy the large down-the-hole drill for the ordinary blasting, which cannot use the small-diameter drill bit. If the down-the-hole drill is used for construction, the bore diameter of a blast hole is too large, and the loading amount and the smooth blasting effect cannot be effectively controlled.
The smooth blasting mode adopted by the project is not pre-splitting, but the sequence of firstly carrying out common blasting and slag removal and then carrying out smooth blasting construction is adopted. After the ordinary blasting construction is completed, the reserved construction platform is limited in width, the operation of a down-the-hole drilling machine is affected, a temporary access must be built to ensure that the drilling machine can climb the construction platform, and the cost is increased.
Another construction scheme is a method of adopting a small down-the-hole drill to carry out separate construction. I.e. each down-the-hole drill has an independent small stand. And after one blast hole is constructed, moving the small down-the-hole to drill to the next blast hole for continuous construction.
The biggest problem of the scheme is that the small down-the-hole drill needs to be moved for multiple times, and due to human errors, the uniformity of the drilling angle at each time cannot be guaranteed, and the flatness of the side slope is difficult to guarantee; and, the stability of small-size independent rack is low, in drilling process, topples very easily or the angle changes, leads to the side slope gradient to be inconsistent.
Disclosure of Invention
In order to solve the technical problem, the invention provides a drilling rack for ensuring the smooth blasting effect of a roadbed, which comprises a rack base consisting of a base platform and supporting legs, wherein the bottom of the rack base is provided with walking wheels, the inner side of the bottom of the base is provided with a hydraulic support rod, the lower end of the hydraulic support rod is rotatably connected with a spiral anchor bolt through a bearing, two ends of the top of the base platform are fixedly provided with an oil cylinder, a piston rod of the oil cylinder is ejected out to be connected with an adjusting plate, one end of the adjusting plate is provided with a movable down-the-hole drill fixer, the other end of the adjusting plate is provided with a drill bit guide pipe, the front end of the drill bit guide pipe is sleeved with a corrugated pipe, the corrugated pipe is connected with a dust suction pipeline, the dust pipeline is externally connected with a negative pressure fan, the drill, the drilling positioning pipe is characterized in that a first bearing is fixedly arranged inside the drilling positioning pipe, a matched screw thread is arranged on the inner ring of the first bearing and a down-the-hole drill bit, rotating motors are symmetrically fixed on two sides of the outer end of the drilling positioning pipe, an output shaft of each rotating motor is connected with an anchor rod, and size scales are marked on the anchor rod.
Furthermore, the rotating motor is a servo motor, and the model of the rotating motor is SM 80-024-30 LFB.
Furthermore, a coaxial second bearing is fixedly arranged at the front end of the rotating motor, and the anchor rod is fixedly arranged on an inner ring of the second bearing in a penetrating mode.
Furthermore, the number of the hydraulic support rods and the number of the corresponding spiral anchor bolts are 2-4.
A use method of a drilling rack for ensuring roadbed smooth blasting effect comprises the following steps:
s1: firstly, lofting on a construction platform, marking a punching position and a punching inclination angle, disassembling a drilling positioning pipe on a drilling rack, aligning the axis of the drilling positioning pipe with a positioning hole, starting a motor to screw anchor rods at two ends of the drilling positioning pipe into two sides of the positioning hole, and performing initial positioning;
s2: the precession size difference of the anchor rods at two ends is calculated according to the inclination angle of lofting and punching design, and the calculation formula is as follows:
L2=L1*tan|α-90°|；
L2: the size difference of the anchor rods at two ends in screwing;
L1: the distance between the anchor rods at the two ends;
α: an included angle between the drill hole and the slope;
s3: setting the contact position of any anchor rod with the slope at the moment to be 0 scale according to the precession size difference of the anchor rods at the two ends calculated in S2, and calculating L2Adjusting the screwing depth of the other anchor rod, and accurately positioning the position and the inclination angle of the punching;
s4: pushing the rack base in place, screwing the spiral anchor bolt into the ground stabilization rack base through external force, adjusting the hydraulic support rod to enable the height of the well-positioned drilling positioning pipe to be consistent with that of the drill bit limiting pipe on the adjusting plate, adjusting the piston rod of the oil cylinder to enable the flange on the drill bit limiting pipe to be in butt joint with the flange of the drill bit positioning pipe, and connecting the two flanges through bolts;
s5: rotating a drill bit part of the down-the-hole drill to penetrate through a drill bit guide pipe and directly abut against the marked positioning hole, fixing a machine head part of the down-the-hole drill on a down-the-hole drill fixer on an adjusting plate, and then starting drilling;
s6: and (4) screwing the drill bit part of the down-the-hole drill out of the drill bit guide pipe, and starting the negative pressure fan to remove slag to complete the drilling.
Further, in S1, the method for aligning the axis of the drill hole positioning tube with the positioning hole includes inserting a vertical rod into the positioning hole, and initially adjusting the rod to a proper position according to the inclination angle, so that the rod is inserted into the axis of the drill hole positioning tube.
Furthermore, the rod piece is provided with a thread matched with the first bearing in the drilling positioning pipe, so that the rod piece can be screwed in and out of the drilling positioning pipe.
Has the advantages that:
according to the drilling rack provided by the invention, the travelling wheels are arranged at the bottom of the rack base, the drilling rack is convenient to move, a steel frame does not need to be erected, the engineering period can be effectively shortened, the engineering construction is accelerated, the hydraulic support rod is arranged on the inner side of the bottom of the base, the lower end of the hydraulic support rod is rotatably connected with the spiral anchor bolt through the bearing, the height of the rack base can be adjusted through the hydraulic support rod according to the position needing to be drilled, the spiral anchor bolt can be screwed into the ground stabilization rack base through external force, the oil cylinders are fixedly arranged at two ends of the top of the base platform, the piston rods of the two oil cylinders are ejected out to be connected with an adjusting plate, the inclination angle of the adjusting plate is adjusted and controlled through the different ejection heights of the front oil cylinder and the rear oil cylinder, the down, the other end of regulating plate is equipped with the drill bit stand pipe, generally is made by the steel pipe, and the drill bit part of down-the-hole drill passes the drill bit stand pipe, makes the drill bit aim at the position of waiting to punch through regulation hydraulic branch and hydro-cylinder, drill bit stand pipe front end cover is equipped with the bellows, be connected with the dust absorption pipeline on the bellows, the external negative pressure positive blower of dust absorption pipeline can realize in time cleaing away the lime-ash the front end of rotating electrical machines still sets firmly coaxial second bearing, the anchor rod is fixed to be worn to establish at the inner circle of second bearing for the positioning action of further stable anchor rod.
The drill bit stand pipe is including setting firmly the spacing pipe of drill bit on the regulating plate to and can dismantle the drilling registration arm of being connected through the flange with the spacing pipe of drill bit, the drilling registration arm inside has set firmly first bearing, first bearing inner circle is equipped with matched with precession screw with the down-the-hole drill bit, the outer end bilateral symmetry of drilling registration arm is fixed with the rotating electrical machines, the output shaft of rotating electrical machines has the stock, it has the size scale to mark on the stock.
When in use, the drilling positioning pipe is firstly disassembled, the axis of the drilling positioning pipe is aligned with the positioning hole according to the punching position marked by the lofting position and the punching inclination angle, the motor is started to screw the anchor rod into two sides of the positioning hole for initial positioning, then the precession depth of the anchor rods at the upper end and the lower end is finely adjusted according to the required inclination angle, the specific precession depth can be calculated according to the scales on the anchor rods, the inclination angle of the punching is adjusted by the difference of the precession depths of the anchor rods at the two ends, because the anchor rods at the two ends of the drilling positioning pipe are always parallel to the drilling positioning pipe, the drill bit part of the down-the-hole drill is connected in the drilling positioning pipe through the bearing threads and is also always parallel to the anchor rods at the two ends of the drilling positioning pipe, the inclination angle of the anchor rod positioning is the inclination angle of the drilling, and after the inclination angle is well positioned, the anchor rod is locked by using an additional bolt, so that the deviation is avoided. Then the rack base is pushed to be in place, the spiral anchor bolt is screwed into the ground stable rack base through external force, then the hydraulic support rod is adjusted to enable the height of the well-positioned drilling positioning pipe to be consistent with that of the drill bit limiting pipe on the adjusting plate, then the piston rod of the oil cylinder is adjusted to adjust the inclination angle of the adjusting plate, so that the flange on the drill bit limiting pipe is in butt joint with the flange of the drill bit positioning pipe, then the two flanges are connected through bolts, the drill bit limiting pipe is concentric and coaxial with the drill bit positioning pipe, the drill bit part of the down-the-hole drill rotates to penetrate through the drill bit guide pipe and directly abuts against the marked positioning hole, the head part of the down-the-hole drill is fixed on a down-the.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the interior of the borehole locator tube in an embodiment of the invention.
1. The drilling machine comprises a base platform, 2 supporting legs, 3 traveling wheels, 4 hydraulic supporting rods, 5 spiral anchor bolts, 6 oil cylinders, 7 down-the-hole drill fixing devices, 8 drill bit guide pipes, 9 corrugated pipes, 10 drill bit limiting pipes, 11 flanges, 12 drilling positioning pipes, 13 first bearings, 14 rotating motors, 15 anchor rods and 16 second bearings.
Detailed Description
The present invention is further illustrated by the following specific examples.
According to the drilling rack provided by the invention, the travelling wheels 3 are arranged at the bottom of the rack base, so that the drilling rack is convenient to move, a steel frame does not need to be erected, the engineering period can be effectively shortened, the engineering construction is accelerated, the hydraulic support rod 4 is arranged at the inner side of the bottom of the base, the lower end of the hydraulic support rod 4 is rotatably connected with the spiral anchor bolt 5 through a bearing, the hydraulic support rod 4 can adjust the height of the rack base according to the position needing to be drilled, the spiral anchor bolt 5 can be screwed into the ground stable rack base through external force, the oil cylinders 6 are fixedly arranged at two ends of the top of the base platform 1, the piston rods of the two oil cylinders 6 are ejected out and connected with the adjusting plate, the inclination angle of the adjusting plate is adjusted and controlled through the different ejection heights of the front oil cylinder 6 and the rear oil cylinder 6, the down-hole drill fixer, the other end of regulating plate is equipped with drill bit stand pipe 8, generally is made by the steel pipe, and the drill bit part of down-the-hole drill passes drill bit stand pipe 8, makes the drill bit aim at the position of waiting to punch through adjusting hydraulic branch 4 and hydro-cylinder 6, the cover of 8 front ends of drill bit stand pipe is equipped with bellows 9, be connected with the dust absorption pipeline on the bellows 9, the external negative-pressure air fan of dust absorption pipeline can realize in time cleaing away the lime-ash the front end of rotating electrical machines 14 still sets firmly coaxial second bearing 16, the anchor rod 15 is fixed to be worn to establish at the inner circle of second bearing 16 for further stable anchor rod 15's positioning action.
Drill bit stand pipe 8 is including setting firmly the spacing pipe 10 of drill bit on the regulating plate to and can dismantle the drilling registration arm 12 of being connected through flange 11 with the spacing pipe 10 of drill bit, drilling registration arm 12 is inside to have set firmly first bearing 13, first bearing 13 inner circle is equipped with the matched with precession screw thread with the down-the-hole drill bit, the outer end bilateral symmetry of drilling registration arm 12 is fixed with rotating electrical machines 14, rotating electrical machines 14's output shaft has stock 15, the last mark of stock 15 has the size scale, the angle of adjustment of being convenient for. When the slag is removed, the drill bit part of the down-the-hole drill is screwed out of the drill bit guide pipe 8, the negative pressure fan is started, the dust in the hole can be removed, the operation is convenient and fast, and the construction efficiency is accelerated.
When in use, the method comprises the following steps:
s1: firstly, lofting on a construction platform, marking a punching position and a punching inclination angle, inserting a vertical rod piece into a positioning hole, preliminarily adjusting the rod piece to the position according to the inclination angle, disassembling the drilling positioning pipe 12 on a drilling rack, aligning the axis of the drilling positioning pipe 12 with the positioning hole, starting a motor to screw anchor rods 15 at two ends of the drilling positioning pipe 12 into two sides of the positioning hole, and performing initial positioning;
wherein, the rod piece is provided with a thread which is matched with the first bearing 13 in the drilling positioning pipe 12, so that the rod piece can be screwed in and out of the drilling positioning pipe 12.
S2: the precession size difference of the anchor rods 15 at the two ends is calculated according to the inclination angle of lofting and punching design, and the calculation formula is as follows:
L2=L1*tan|α-90°|；
wherein L is2: size difference of anchor rods 15 at two ends in screwing;
L1: the distance between the anchors 15 at both ends;
α: the angle between the bore and the slope.
The sizes of the drill bit guide pipes 8 corresponding to the down-the-hole drills with different specifications are different, so that the corresponding L1And if the difference is inconsistent, the precession size difference of the anchor rods at the two ends can be calculated through the formula.
S3: setting the contact position of any one of the anchor rods 15 with the slope at this time to 0 scale according to the calculated difference in the screwing sizes of the anchor rods 15 at both ends in S2, and calculating L2The screw-in depth of another stock 15 is adjusted, the position and the inclination angle of the accurate positioning punching are realized, and because the preliminary fixing is already carried out in S1, only fine adjustment is needed in the step, and the accurate control can be realized by controlling the rotating speed of the servo motor.
The drilling inclination angle is adjusted through different precession depths of anchor rods 15 at two ends, because the anchor rods 15 at two ends of the drilling positioning pipe 12 are always kept parallel to the drilling positioning pipe 12, the drill bit part of a down-the-hole drill is connected in the drilling positioning pipe 12 through bearing threads, and the anchor rods 15 at two ends of the drilling positioning pipe 12 are also always kept parallel to each other, so that the inclination angle of the anchor rod 15 for positioning is the drilling inclination angle, and the anchor rod 15 is locked by using an additional bolt after the inclination angle is well positioned, so that the deviation is avoided.
S4: pushing the rack base to a proper position, screwing the spiral anchor bolt 5 into the ground stable rack base through external force, adjusting the hydraulic support rod 4 to enable the height of the well-positioned drilling positioning pipe 12 to be consistent with that of a drill bit limiting pipe 10 on an adjusting plate, adjusting a piston rod of an oil cylinder 6 to enable a flange 11 on the drill bit limiting pipe 10 to be in butt joint with a flange 11 of the drill bit positioning pipe, and connecting the two flanges 11 through bolts;
s5: and (3) the drill bit part of the down-the-hole drill rotates to penetrate through the drill bit guide pipe 8 and directly abuts against the marked positioning hole, the head part of the down-the-hole drill is fixed on a down-the-hole drill fixer 7 on the adjusting plate, and then the drilling is started.
S6: the drill bit part of the down-the-hole drill is screwed out of the drill bit guide pipe 8, the negative pressure fan is started to remove slag, the drilling is completed, the ash in the hole can be removed, the operation is convenient and fast, and the construction efficiency is accelerated.
The construction by using a small-sized drilling machine can ensure that the bore diameter of the blast hole is controlled in a smaller range, and is beneficial to controlling the smooth blasting effect. Through the construction of front and back light explosion contrast, the equipment and the method play a great role in forming a good smooth blasting effect.
It should be noted that the above-mentioned embodiments are only examples of the present invention, and it should be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principle and spirit of the present invention, so as to obtain other embodiments, which should also be within the scope of the present invention as defined in the appended claims.
Claims (7)
1. A drilling rack for ensuring the smooth blasting effect of a roadbed is characterized by comprising a rack base consisting of a base platform and supporting legs, wherein walking wheels are arranged at the bottom of the rack base, a plurality of hydraulic supporting rods are arranged on the inner side of the bottom of the base, spiral anchor bolts are rotatably connected at the lower ends of the hydraulic supporting rods through bearings, oil cylinders are fixedly arranged at two ends of the top of the base platform, piston rods of the oil cylinders are ejected out to be connected with an adjusting plate, a movable down-the-hole drill fixer is arranged at one end of the adjusting plate, a drill bit guide pipe is arranged at the other end of the adjusting plate, a corrugated pipe is sleeved at the front end of the drill bit guide pipe, a dust suction pipeline is connected onto the corrugated pipe, the dust suction pipeline is externally connected with a negative pressure fan, the drill bit guide pipe comprises a drill, the drilling positioning pipe is characterized in that a first bearing is fixedly arranged inside the drilling positioning pipe, a matched screw thread is arranged on the inner ring of the first bearing and a down-the-hole drill bit, rotating motors are symmetrically fixed on two sides of the outer end of the drilling positioning pipe, an output shaft of each rotating motor is connected with an anchor rod, and size scales are marked on the anchor rod.
2. The drilling rig for guaranteeing the smooth blasting effect of the roadbed according to claim 1, wherein the rotary motor is a servo motor having a model number of SM 80-024-30 LFB.
3. The drilling rig for guaranteeing smooth blasting effect of roadbed according to claim 1, wherein a coaxial second bearing is further fixedly arranged at the front end of the rotating motor, and the anchor rod is fixedly arranged on the inner ring of the second bearing in a penetrating mode.
4. The drilling rig for guaranteeing smooth blasting effect of road foundation according to claim 1, wherein the number of said hydraulic prop and corresponding screw-type anchor bolt is 2-4.
5. Use of a drilling rig according to any of claims 1-4 for ensuring the effectiveness of roadbed lighting blasting, characterized in that it comprises the following steps:
s1: firstly, lofting on a construction platform, marking a punching position and a punching inclination angle, disassembling a drilling positioning pipe on a drilling rack, aligning the axis of the drilling positioning pipe with a positioning hole, starting a motor to screw anchor rods at two ends of the drilling positioning pipe into two sides of the positioning hole, and performing initial positioning;
s2: the precession size difference of the anchor rods at two ends is calculated according to the inclination angle of lofting and punching design, and the calculation formula is as follows:
L2=L1*tan|α-90°|；
L2: the size difference of the anchor rods at two ends in screwing;
L1: the distance between the anchor rods at the two ends;
α: an included angle between the drill hole and the slope;
s3: setting the contact position of any anchor rod with the slope at the moment to be 0 scale according to the precession size difference of the anchor rods at the two ends calculated in S2, and calculating L2Adjusting the screwing depth of the other anchor rod, and accurately positioning the position and the inclination angle of the punching;
s4: pushing the rack base in place, screwing the spiral anchor bolt into the ground stabilization rack base through external force, adjusting the hydraulic support rod to enable the height of the well-positioned drilling positioning pipe to be consistent with that of the drill bit limiting pipe on the adjusting plate, adjusting the piston rod of the oil cylinder to enable the flange on the drill bit limiting pipe to be in butt joint with the flange of the drill bit positioning pipe, and connecting the two flanges through bolts;
s5: rotating a drill bit part of the down-the-hole drill to penetrate through a drill bit guide pipe and directly abut against the marked positioning hole, fixing a machine head part of the down-the-hole drill on a down-the-hole drill fixer on an adjusting plate, and then starting drilling;
s6: and (4) screwing the drill bit part of the down-the-hole drill out of the drill bit guide pipe, and starting the negative pressure fan to remove slag to complete the drilling.
6. The method of using a boring stand for securing a smooth blasting effect of a roadbed according to claim 5, wherein the step of aligning the axial center of the boring positioning pipe with the positioning hole in the step of S1 is to insert a vertical rod member into the positioning hole, and preliminarily to adjust the rod member in position at an inclination angle so that the rod member is inserted into the axial center of the boring positioning pipe.
7. The method of using a drilling rig for ensuring smooth blasting of a roadbed according to claim 6, wherein the rod member is provided with a thread which is engaged with the first bearing in the drilling location pipe so that the rod member can be screwed into and out of the drilling location pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010463432.1A CN111608575A (en) | 2020-05-27 | 2020-05-27 | Drilling rack for ensuring smooth blasting effect of roadbed and using method thereof |
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| CN202010463432.1A CN111608575A (en) | 2020-05-27 | 2020-05-27 | Drilling rack for ensuring smooth blasting effect of roadbed and using method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302544A (en) * | 2020-10-29 | 2021-02-02 | 泉州市利器金刚石工具有限公司 | Intelligent down-the-hole drill |
| CN113982482A (en) * | 2021-11-17 | 2022-01-28 | 武威 | Highway bridge construction drilling platform |
| CN115234162A (en) * | 2021-04-25 | 2022-10-25 | 东台市巨力机械制造有限公司 | Vertical drilling machine that stable form is high |
| CN115234161A (en) * | 2021-04-22 | 2022-10-25 | 东台市巨力机械制造有限公司 | Telescopic arm hydraulic walking type long-spiral drilling machine |
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2020
- 2020-05-27 CN CN202010463432.1A patent/CN111608575A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302544A (en) * | 2020-10-29 | 2021-02-02 | 泉州市利器金刚石工具有限公司 | Intelligent down-the-hole drill |
| CN112302544B (en) * | 2020-10-29 | 2022-09-06 | 泉州市利器金刚石工具有限公司 | Intelligent down-the-hole drill |
| CN115234161A (en) * | 2021-04-22 | 2022-10-25 | 东台市巨力机械制造有限公司 | Telescopic arm hydraulic walking type long-spiral drilling machine |
| CN115234162A (en) * | 2021-04-25 | 2022-10-25 | 东台市巨力机械制造有限公司 | Vertical drilling machine that stable form is high |
| CN115234162B (en) * | 2021-04-25 | 2024-06-25 | 东台市巨力机械制造有限公司 | Stable high vertical drilling machine |
| CN113982482A (en) * | 2021-11-17 | 2022-01-28 | 武威 | Highway bridge construction drilling platform |
| CN113982482B (en) * | 2021-11-17 | 2024-06-07 | 武威 | Highway bridge construction drilling platform |
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