CN115874927A - Tunnel inverted arch bottom plate blast hole drilling method and device - Google Patents
Tunnel inverted arch bottom plate blast hole drilling method and device Download PDFInfo
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- CN115874927A CN115874927A CN202310102571.5A CN202310102571A CN115874927A CN 115874927 A CN115874927 A CN 115874927A CN 202310102571 A CN202310102571 A CN 202310102571A CN 115874927 A CN115874927 A CN 115874927A
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Abstract
The invention relates to a tunnel inverted arch base plate blast hole drilling method and a device thereof, belonging to the technical field of tunnel excavation, comprising a fixed base plate, wherein a drill rod installation block is arranged on the fixed base plate, the height of the drill rod installation block is adjusted through the extension of a first hydraulic cylinder and a second hydraulic cylinder, the angle between the drill rod installation block and the ground is controlled through the height difference between the first hydraulic cylinder and the second hydraulic cylinder, the inclination angle of the drill rod installation block is adjusted by adjusting the position of an installation lug boss in a first ring groove, so that the position and the angle of the drill rod installation block can be accurately positioned, and higher drilling precision is ensured.
Description
Technical Field
The invention relates to the technical field of tunnel excavation, in particular to a tunnel inverted arch bottom plate blast hole drilling method and a device thereof.
Background
At present, the tunnel of mountain engineering of railway and highway is mostly constructed by a new Austrian method of 'less disturbance, early spray anchor, duty measurement and tight closure', wherein the angle and the depth of a radian blast hole of an inverted arch bottom plate play an important role in the inverted arch overbreak, and because the blast hole position of the inverted arch bottom plate is arranged downwards, a worker usually needs to bow, squat or lie on the ground to drill, so that the construction is very inconvenient, the downward inclination angle of the blast hole is too large or too small, the hole position is deviated, a large-area overbreak phenomenon occurs after blasting, concrete resources are seriously wasted, the construction cost is increased, or local underbreak occurs, secondary blasting is needed, the secondary blasting is usually converted into the serious overbreak after the secondary blasting, the blasting work and the concrete are wasted, the working procedure construction time is prolonged, the labor intensity of the worker is increased, and more losses are caused to the project.
The existing scheme is that punching is mostly carried out manually, and the propelling force is realized by bowing or squatting, so that the punching angle is inaccurate, and the coordination of the problems of the drilling depth, the length of a drill rod and the like is involved.
Disclosure of Invention
In order to solve the defects in the background art, the invention aims to provide a tunnel inverted arch bottom plate blast hole drilling method and a tunnel inverted arch bottom plate blast hole drilling device, and a tunnel inverted arch bottom plate blast hole drilling method and a tunnel inverted arch bottom plate blast hole drilling device, which solve the problem that in the prior art, the blast hole of the inverted arch bottom plate is difficult to drill downwards.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a tunnel invert bottom plate big gun hole drilling equipment, comprising a fixing base plate, the last drilling rod installation piece that is equipped with of PMKD, drilling rod installation piece lower extreme is equipped with a plurality of drilling rod installation bosss, PMKD has last the first annular, the PMKD upper surface is equipped with the second pneumatic cylinder, the second pneumatic cylinder is concentric with first annular, movable mounting has first pneumatic cylinder in the first annular, first pneumatic cylinder lower extreme is equipped with the installation boss, installation boss fixed mounting is in first annular, installation boss piston rod upper end and drilling rod installation boss are through installing axle swing joint, movable mounting has rotatory first revolving stage on the piston rod of second pneumatic cylinder, first revolving stage passes through the ring platform movable mounting that the cross section is T shape and is in the piston rod upper end of second pneumatic cylinder, first revolving stage and drilling rod installation boss are through installing axle swing joint, movable mounting has first motor in the spout of drilling rod installation piece, be connected with the big gun hole drilling rod on the first motor.
Furthermore, installation chutes are formed in two sides of the drill rod installation block, the first motor and the drill rod connection block are movably installed in the installation chutes, and the first motor and the drill rod connection block realize reciprocating motion on the drill rod installation block through one of a screw rod, a cylinder and a rack.
Further, an attitude sensor is mounted on the drill rod connecting block.
Furthermore, a screw rod installation groove is formed in the middle of the drill rod installation block, a first screw rod is movably installed in the screw rod installation groove, a first sliding block is movably installed on the first screw rod, the first sliding block is fixedly connected with the first motor and the drill rod connection block through a connection boss, a nut installation groove is formed in the first sliding block, a first nut is installed in the nut installation groove, and the first nut is installed on the first screw rod.
Further, nut mounting groove is close to big gun hole drilling rod point one end and is equipped with first spring, and first spring one end fixed mounting has the spring mounting ring, and spring mounting ring movable mounting is on first nut, and nut mounting groove one end is equipped with first solid fixed ring, is equipped with first spline groove in the first solid fixed ring, and first nut one side is equipped with first spline, and first spline movable mounting is in first spline groove.
Further, be equipped with two spline bosss on the first spline, spline boss height is higher than first spline, the one end that first solid fixed ring is close to first nut is equipped with the solid fixed ring of second, second fixed ring fixed mounting is in the nut mounting groove, and the second fixed ring is equipped with third installation annular, and the lock dead draw-in groove of W-shaped is seted up to third installation annular both sides, and lock dead draw-in groove is the circumference and distributes, installs the go-between in the solid fixed ring of second, and the go-between outside is equipped with first installation ring platform, and first installation ring platform movable mounting is in third installation annular, and first installation ring platform both sides are equipped with the mounting hole that the circumference distributes, movable mounting has the dead post of conflict lock in the mounting hole, and the dead post both ends of conflict lock are the fillet, are equipped with the second spring collar on the dead post of conflict lock, are equipped with the second spring collar on the second spring collar, make the dead post inward movement of conflict lock through the elasticity of second spring, are equipped with the second spline in the go-between, and first spline movable mounting is in the second spline inslot.
Furthermore, the end face, close to the first spring, of the first nut is provided with balls distributed circumferentially.
Furthermore, a drill core collecting box is arranged on one side of the fixed base plate and is positioned on the side face of the drill rod mounting block; and two sides of the drill core collecting box are provided with blanking inclined planes.
Furthermore, a second annular groove is formed in the fixed base plate, the second annular groove is concentric with the second hydraulic cylinder, the second annular groove is movably installed in the third hydraulic cylinder, and a piston rod of the third hydraulic cylinder is movably installed on the drill rod installation boss below the drill rod installation block.
Further, the specific operation steps of the tunnel inverted arch bottom plate blast hole drilling device are as follows:
the method comprises the following steps: placing a drilling device at one side of a blast hole to be drilled, and determining the inclination angle of the device in each direction through data acquired by an attitude sensor;
step two: compensating and correcting the inclination angle of the device in each direction by controlling the angle of the drill rod mounting block;
step three: on the basis of the correction, the height of the drill rod mounting block is adjusted through the extension and contraction of the first hydraulic cylinder and the second hydraulic cylinder, and meanwhile, the angle between the drill rod mounting block and the ground is controlled through the height difference between the first hydraulic cylinder and the second hydraulic cylinder;
step four: when the drill rod mounting block moves and is adjusted in place, the positions of the first hydraulic cylinder and the first rotating table are fixed, and the inclination angle of the drill rod mounting block is adjusted by adjusting the position of the mounting boss in the first ring groove;
step five: the first motor is started, the first motor drives the blast hole drill rod to rotate through the drill rod connecting block, and the first motor and the drill rod connecting block slide forwards along the blast hole drill rod to complete drilling operation of the blast hole.
The invention has the beneficial effects that:
according to the invention, the height of the drill rod mounting block is adjusted through the extension of the first hydraulic cylinder and the second hydraulic cylinder, meanwhile, the angle between the drill rod mounting block and the ground is controlled through the height difference between the first hydraulic cylinder and the second hydraulic cylinder, and the inclination angle of the drill rod mounting block is adjusted by adjusting the position of the mounting boss in the first ring groove, so that the position and the angle of the drill rod mounting block can be accurately positioned, and higher drilling precision is ensured.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts;
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a drill rod mounting block of the present invention;
FIG. 3 is a schematic view of another perspective of a drill pipe installation block of the present invention;
FIG. 4 is a schematic view of the installation of the attitude sensor of the present invention;
FIG. 5 is a schematic view of the installation of the first slider of the present invention;
FIG. 6 is a schematic view of the internal structure of the first slider according to the present invention;
FIG. 7 is a schematic view of the interior of another first slider structure according to the present invention;
FIG. 8 is a schematic view of a second fixed ring configuration of the present invention;
FIG. 9 is a schematic view of the interference locking post of the present invention;
FIG. 10 is a schematic view of a second retaining ring installation of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-fixed bottom plate, 3-first sliding block, 2-drill rod installation block, 4-second fixed ring, 11-drill core collection box, 12-two-side arrangement, 13-first ring groove, 14-second ring groove, 15-first hydraulic cylinder, 16-second hydraulic cylinder, 17-third hydraulic cylinder, 18-first rotating table, 19-installation boss, 21-first motor, 22-drill rod connection block, 23-blasthole drill rod, 24-attitude sensor, 25-drill rod installation boss, 26-installation chute, 27-lead screw installation groove, 28-first screw, 31-connection boss, 32-nut installation groove, 33-first spring, 34-spring installation ring, 35-first nut, 36-first fixed ring, 37-second installation ring table, 38-first spline groove, 42-third installation ring groove, 43-dead lock groove, 45-spline connection ring, 46-first installation ring table, 47-second dead lock groove, 48-dead lock column, 351-first spline, 42-second installation ring, 352-second spring installation ring, and 352-second spring installation ring.
Detailed Description
In a first embodiment, as shown in fig. 1 to 10, a tunnel invert bottom plate blasthole drilling device includes a fixed bottom plate 1, a drill rod installation block 2 is disposed on one side of the fixed bottom plate 1, a plurality of drill rod installation bosses 25 are disposed at a lower end of the drill rod installation block 2, a first ring groove 13 is disposed on the fixed bottom plate 1, a second hydraulic cylinder 16 is disposed on an upper surface of the fixed bottom plate 1, the second hydraulic cylinder 16 is concentric with the first ring groove 13, a first hydraulic cylinder 15 is movably installed in the first ring groove 13, an installation boss 19 is disposed at a lower end of the first hydraulic cylinder 15, the installation boss 19 is fixedly installed in the first ring groove 13, an upper section of a piston rod of the installation boss 19 is movably connected with the drill rod installation boss 25 through an installation shaft, a rotatable first rotary table 18 is movably installed on a piston rod of the second hydraulic cylinder 16, the first rotary table 18 is movably installed on an upper end of a piston rod of the second hydraulic cylinder 16 through a ring table with a T-shaped cross section, the first rotary table 18 is movably installed on the drill rod installation boss 25 through the installation shaft, a first motor 21 is movably installed on the drill rod installation block 2, a drill rod connection block 22 is movably connected with the drill rod connection block 22, and a blasthole 23 is disposed on the drill rod installation block 2;
through such design, when needing the big gun hole of low level to drill, place drilling equipment in waiting to bore big gun hole one side earlier, the height of the flexible regulation drilling rod installation piece 2 through first pneumatic cylinder 15 and second pneumatic cylinder 16, simultaneously through the difference in height control drilling rod installation piece 2 between first pneumatic cylinder 15 and the second pneumatic cylinder 16 and the angle on ground, when drilling rod installation piece 2 motion regulation targets in place, the position of fixed first pneumatic cylinder 15 and first revolving stage 18, drive first pneumatic cylinder 15 motion through the position of adjustment installation boss 19 in first annular 13, the inclination of the rotatory adjustment drilling rod installation piece 2 of first pneumatic cylinder 15 motion drive drilling rod installation piece 2, so can carry out accurate location to drilling rod installation piece 2 position and angle, for among the prior art, adopt artifical hand to take the rig to carry out drilling operation and have higher drilling precision, guarantee that big gun hole angle and position are unanimous with the design theoretical value and guarantee the blasting effect ideal, installation boss 19 adjusts and starts first motor 21 after target in place, first motor 21 drives behind the rotation drilling rod 23 through connecting block 22, first motor 21 and the drilling rod 22 can only carry out the operation of the high-angle of the supplementary drilling of the current drilling hole of the slip angle regulation technology of the current drilling rod installation of the current tunnel along the current more.
Further, installation boss 19 is installed on the circular guide in first annular 13 or is driven through the motor, so can have higher precision for manual regulation position, adopts detachable flange to be connected between blast hole drilling rod 23 and the drilling rod connecting block 22, so can conveniently change different blast hole drilling rod 23, and flange passes through bolted connection.
In some disclosures, the installation sliding grooves 26 are formed in two sides of the drill rod installation block 2, and the first motor 21 and the drill rod connection block 22 are both movably installed in the installation sliding grooves 26, so that the first motor 21 and the drill rod connection block 22 can slide more smoothly on the drill rod installation block 2, and further, the first motor 21 and the drill rod connection block 22 can realize reciprocating motion on the drill rod installation block 2 through a screw rod, an air cylinder, a rack and the like.
In some disclosures, the attitude sensor 24 is mounted on the drill rod connecting block 22, and by such design, the inclination angle of each direction of the device can be determined through the data collected by the attitude sensor 24, so that the attitude of the drilling device can be calculated, and then the angle of the drill rod mounting block 2 can be corrected according to the position of the fixed base plate 1, and the actual drilling angle is guaranteed to be corrected, if the drilling device has an inclination angle of alpha in one direction due to the ground inclination, the inclination angle of alpha is compensated and corrected by the drill rod mounting block 2 during the angle adjustment; through the design, the accuracy of the actual drilling angle and position can be ensured.
In some disclosures, a lead screw installation groove 27 is formed in the middle of the drill rod installation block 2, a first screw 28 is movably installed in the lead screw installation groove 27, a first sliding block 3 is movably installed on the first screw 28, the first sliding block 3 is fixedly connected with a first motor 21 and a drill rod connection block 22 through a connection boss 31, the first motor 21 and the drill rod connection block 22 are driven to move through the movement of the first sliding block 3 on the first screw 28, a nut installation groove 32 is formed in the first sliding block 3, a first nut 35 is installed in the nut installation groove 32, and the first nut 35 is installed on the first screw 28;
further, one end of the first nut 35 is provided with a second mounting ring table 37, one end of the nut mounting groove 32, which is close to the point of the blast hole drill rod 23, is provided with a first spring 33, one end of the first spring 33 is fixedly provided with a spring mounting ring 34, the spring mounting ring 34 is movably mounted on the second mounting ring table 37, so that the first nut 35 and the spring mounting ring 34 can transmit thrust along an axis and can rotate freely, one end of the nut mounting groove 32, which is far away from the blast hole drill rod 23, is provided with a first fixing ring 36, the first fixing ring 36 is fixedly mounted in the nut mounting groove 32, a first spline groove 38 is formed in the first fixing ring 36, one side of the first nut 35, which is close to the first fixing ring 36, is provided with a first spline 351, the first spline 351 is movably mounted in the first spline groove 38, and by virtue of such design, when drilling is performed, by rotating the first screw rod 28, because the first spline 351 is movably mounted in the first spline groove 38, the first nut 35 cannot rotate synchronously with the first screw rod 28, so that the first nut 35 is driven to move forwards, and the first spring 33 drives the slide block 3 to move forwards, so that the drill rod 22 and the drill rod 23 can drive the slide block to perform drilling pressure on the drill rod 23;
when the current pressure is blocked by drilling and the rotary drilling cannot be continued, the first sliding block 3 stops, the first nut 35 continues to move forwards to further press the first spring 33, so that the first spring 33 can apply larger forward thrust to the first sliding block 3, when the thrust applied to the first sliding block 3 by the first spring 33 reaches a maximum value, the first spline 351 is completely separated from the first spline groove 38, at this time, the first nut 35 removes the self-rotation limitation and has larger axial pressure, the first nut 35 rotates synchronously with the first screw 28 so as to avoid that the first nut 35 continues to move forwards to further compress the first spring 33, so that the pressure of the blasthole drill rod 23 is too large, so that the blasthole drill rod 23 breaks and deforms and the first motor 21 is stuck and damaged, when the blasthole drill rod 23 continues to drill under the elastic force of the first spring 33, the first sliding block 3 moves forwards, the first fixing ring 36 and the second spline fixing ring 4 move forwards simultaneously, and the first spline 351 can enter the first spline groove 38 again; when the return of the blast hole drill rod 23 is needed, the first screw 28 is reversed;
further, when the blast hole drill rod 23 cannot rotate, the first nut 35 and the first screw 28 rotate synchronously, when the first spline 351 rotates to be aligned with the first spline groove 38, the first spline 351 enters the first spline groove 38 again for a section under the action of the elastic force of the first spring 33, and then the first spline 351 can be separated again under the condition that the blast hole drill rod 23 cannot rotate, in such a way, in the reciprocating process of the first nut 35, reciprocating vibration is transmitted to the first sliding block 3 through the first spring 33 to drive the blast hole drill rod 23 to vibrate and impact the rotating head of the blast hole drill rod 23 to the bottom of the blast hole so as to strengthen the rock stratum with higher hardness to be drilled, and smooth drilling is ensured;
in some disclosures, two spline bosses 352 are provided on the first spline 351, the spline bosses 352 are higher than the first spline 351, one end of the first fixing ring 36 close to the first nut 35 is provided with a second fixing ring 4, the second fixing ring 4 is fixedly installed in the nut installation groove 32, the second fixing ring 4 is provided with a third installation ring groove 42, two sides of the third installation ring groove 42 are provided with W-shaped locking clamping grooves 43, the locking clamping grooves 43 are distributed circumferentially, a connecting ring 45 is installed in the second fixing ring 4, the outer side of the connecting ring 45 is provided with a first installation ring platform 46, the first installation ring platform 46 is movably installed in the third installation ring groove 42, two sides of the first installation ring platform 46 are provided with installation holes distributed circumferentially, the installation hole is movably provided with an abutting locking column 48, two ends of the abutting locking column 48 are in round angles, the abutting locking column 48 is provided with a second spring installation ring 481, the second spring installation ring 481 is provided with a second spring 482, the interference locking post 48 is moved inward by the elastic force of the second spring 482, a second spline groove 47 is formed in the connection ring 45, the first spline 351 is movably installed in the second spline groove 47, when the end of the interference locking post 48 close to the outer side does not expose the outer surface of the connection ring 45 under the elastic force of the second spring 482 when the interference locking post 48 is not interfered by external force, the connection ring 45 is driven to rotate by the first spline 351 along with the rotation of the first nut 35, when the abutting locking post 48 is abutted by the spline boss 352, the abutting locking post 48 overcomes the elastic force to move outwards, the abutting locking post 48 is clamped in the locking clamping groove 43, the two sides of the W shape are provided with vertical surfaces 44 which can be matched with the abutting locking post 48 to complete the fixing of the connecting ring 45 in two rotating directions, and the connecting ring 45 is driven to rotate by the first spline 351 along with the rotation of the first nut 35; further, the first spline 351 and the first spline 351 are in a transition of an oblique angle.
Through the design, when the first spline 351 moves towards the first spring 33 and just breaks away from the first spline groove 38, the two spline bosses 352 are respectively located on one side of the interference locking column 48 close to the first spring 33, so when the first slider 3 moves forward after the blasthole drill rod 23 is drilled, the first fixing ring 36 and the second fixing ring 4 move forward relative to the first nut 35 at the same time, the first spline 351 can reenter into the first spline groove 38, the spline bosses 352 abut against the interference locking column 48, the interference locking column 48 moves outward against the elastic force, the interference locking column 48 is clamped into the locking clamping groove 43, the two sides of the W-shape are provided with the vertical surfaces 44 which can cooperate with the interference locking column 48 to complete the fixing of the connecting ring 45 in two rotating directions, and the first nut 35 can be rotationally fixed by the second spline groove 47 and the first spline groove 351 in an auxiliary manner through the cooperation with the second spline groove 47, so that the first spline groove 38 can be matched with the first spline 351 to cause the first spline groove 38 or the first spline 351 is damaged and failed.
In some disclosures, the end surface of the first nut 35 close to the first spring 33 is provided with balls distributed circumferentially, and by such design, the friction resistance when the first nut 35 rotates synchronously with the first screw 28 can be reduced by rolling of the balls; further, the first screw 28 may be a lead screw for higher precision.
In some disclosures, the second ring groove 14 has been seted up on PMKD 1, second ring groove 14 is concentric with second pneumatic cylinder 16, movable mounting and third pneumatic cylinder 17 in the second ring groove 14, the piston rod movable mounting of third pneumatic cylinder 17 is on drilling rod installation boss 25 of drilling rod installation piece 2 below, through such design, third pneumatic cylinder 17 and first pneumatic cylinder 15 simultaneous movement when adjusting 2 angles of drilling rod installation piece, it can reduce the spacing of the while multiple spot of first pneumatic cylinder 15 atress and can guarantee the regulation precision and the stability of drilling rod installation piece 2 to provide support or pulling force to drilling rod installation piece 2 through third pneumatic cylinder 17.
In some disclosures, one side of the fixed bottom plate 1 is provided with a core collecting box 11, and the core collecting box 11 is positioned at the side of the drill rod mounting block 2; the two sides of the drill core collecting box 11 are provided with the blanking inclined planes 12, so that after the blast hole drill rod 23 drills, the position of the drill rod mounting block 2 is adjusted to enable the blast hole drill rod 23 to face the interior of the drill core collecting box 11, so that the rock core in the blast hole drill rod 23 can be collected in the drill core collecting box 11 and can be prevented from being accumulated in the middle by sliding from the blanking inclined planes 12, and meanwhile, the rock core is prevented from scattering on the ground to cause potential safety hazards of personnel.
The working principle is as follows:
the height of the drill rod installation block 2 is adjusted through the extension of the first hydraulic cylinder 15 and the second hydraulic cylinder 16, the height difference between the first hydraulic cylinder 15 and the second hydraulic cylinder 16 is used for controlling the angle between the drill rod installation block 2 and the ground, when the drill rod installation block 2 is moved and adjusted in place, the positions of the first hydraulic cylinder 15 and the first rotary table 18 are fixed, the position of the installation boss 19 in the first annular groove 13 is adjusted to drive the first hydraulic cylinder 15 to move, the inclination angle of the drill rod installation block 2 is adjusted through the rotation of the drill rod installation block 2 driven by the movement of the first hydraulic cylinder 15, so that the drill rod installation block 2 can be accurately positioned in position and angle, higher drilling precision is ensured, and the condition that the blast hole angle and the position are consistent with a design theoretical value and the blasting effect is ideal is ensured.
The foregoing shows and describes the general principles, principal features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (10)
1. The utility model provides a tunnel invert bottom plate big gun hole drilling equipment, including PMKD (1), a serial communication port, be equipped with drilling rod installation piece (2) on PMKD (1), drilling rod installation piece (2) lower extreme is equipped with a plurality of drilling rod installation boss (25), first annular (13) have been seted up on PMKD (1), PMKD (1) upper surface is equipped with second hydraulic cylinder (16), second hydraulic cylinder (16) and first annular (13) are concentric, movable mounting has first pneumatic cylinder (15) in first annular (13), first pneumatic cylinder (15) lower extreme is equipped with installation boss (19), installation boss (19) fixed mounting is in first annular (13), installation boss (19) piston rod upper end and drilling rod installation boss (25) are through installation axle swing joint, movable mounting has rotatory first revolving stage (18) on the piston rod of second hydraulic cylinder (16), first revolving stage (18) have the piston rod upper end of second hydraulic cylinder (16) through the ring platform swing joint of cross section for T shape, first revolving stage (18) and drilling rod installation boss (25) are through the swing joint, the installation of drilling rod install the motor (21) on the installation of spout (2).
2. The tunnel invert bottom plate blast hole drilling device according to claim 1, characterized in that, the drill rod mounting block (2) is provided with mounting chutes (26) at both sides, the first motor (21) and the drill rod connecting block (22) are movably mounted in the mounting chutes (26), and the first motor (21) and the drill rod connecting block (22) realize the reciprocating motion on the drill rod mounting block (2) through one of a screw rod, a cylinder and a rack.
3. The tunnel invert base gun hole drilling device according to claim 2, characterized in that the drill rod connecting block (22) is mounted with a posture sensor (24).
4. The tunnel invert bottom plate blasthole drilling device according to claim 3, characterized in that a screw rod installation groove (27) is formed in the middle of the drill rod installation block (2), a first screw rod (28) is movably installed in the screw rod installation groove (27), a first sliding block (3) is movably installed on the first screw rod (28), the first sliding block (3) is fixedly connected with the first motor (21) and the drill rod connection block (22) through a connection boss (31), a nut installation groove (32) is formed in the first sliding block (3), a first nut (35) is installed in the nut installation groove (32), and the first nut (35) is installed on the first screw rod (28).
5. The drilling device for the blast hole of the tunnel inverted arch bottom plate according to claim 4, wherein a first spring (33) is arranged at one end of the nut mounting groove (32) close to the point of the blast hole drill rod (23), a spring mounting ring (34) is fixedly mounted at one end of the first spring (33), the spring mounting ring (34) is movably mounted on a first nut (35), a first fixing ring (36) is arranged at one end of the nut mounting groove (32), a first spline groove (38) is formed in the first fixing ring (36), a first spline (351) is arranged on one side of the first nut (35), and the first spline (351) is movably mounted in the first spline groove (38).
6. The tunnel invert bottom plate blasthole drilling device as claimed in claim 5, wherein two spline bosses (352) are arranged on the first spline (351), the spline bosses (352) are higher than the first spline (351), a second fixing ring (4) is arranged at one end of the first fixing ring (36) close to the first nut (35), the second fixing ring (4) is fixedly installed in the nut installation groove (32), a third installation ring groove (42) is arranged on the second fixing ring (4), W-shaped locking clamping grooves (43) are formed at two sides of the third installation ring groove (42), the locking clamping grooves (43) are circumferentially distributed, a connection ring (45) is installed in the second fixing ring (4), a first installation ring platform (46) is arranged outside the connection ring (45), the first installation ring platform (46) is movably installed in the third installation ring groove (42), installation holes which are circumferentially distributed are formed at two sides of the first installation ring platform (46), an interference lock dead post (482) is movably installed in the installation hole, two ends of the lock post (48) are in a connection ring, a second installation spring groove (481) is formed in the second installation ring groove (47), and a spring groove (47) is formed in the second installation groove (47) for enabling the spring to move towards the interior of the second dead post (481), the first spline (351) is movably arranged in the second spline groove (47).
7. A tunnel invert base blasthole drilling apparatus as in claim 6 wherein the first nut (35) has circumferentially distributed balls on its end face adjacent to the first spring (33).
8. The tunnel invert bottom plate blasthole drilling device as claimed in claim 7, characterized in that the fixed bottom plate (1) is provided with a core collection box (11) on one side, the core collection box (11) is arranged on the side of the drill rod installation block (2), and the core collection box (11) is provided with a blanking inclined surface (12) on both sides.
9. The tunnel invert bottom plate blasthole drilling device as claimed in claim 7, characterized in that the fixed bottom plate (1) is provided with a second annular groove (14), the second annular groove (14) is concentric with the second hydraulic cylinder (16), the second annular groove (14) is movably mounted in the third hydraulic cylinder (17), and a piston rod of the third hydraulic cylinder (17) is movably mounted on a drill rod mounting boss (25) below the drill rod mounting block (2).
10. A tunnel inverted arch bottom plate blast hole drilling method is characterized in that the drilling device of claim 9 is adopted, and the method comprises the following specific steps:
the method comprises the following steps: the drilling device is placed on one side of a blast hole to be drilled, and the inclination angle of each direction of the drilling device is determined through data collected by the attitude sensor (24);
step two: compensating and correcting the inclination angle of the device in each direction by controlling the angle of the drill rod mounting block (2);
step three: on the basis of the correction, the height of the drill rod mounting block (2) is adjusted through the extension of the first hydraulic cylinder (15) and the second hydraulic cylinder (16), and meanwhile, the angle between the drill rod mounting block (2) and the ground is controlled through the height difference between the first hydraulic cylinder (15) and the second hydraulic cylinder (16);
step four: when the drill rod installation block (2) moves and is adjusted to be in place, the positions of the first hydraulic cylinder (15) and the first rotating platform (18) are fixed, and the inclination angle of the drill rod installation block (2) is adjusted by adjusting the position of the installation boss (19) in the first ring groove (13);
step five: the first motor (21) is started, after the first motor (21) drives the blast hole drill rod (23) to rotate through the drill rod connecting block (22), the first motor (21) and the drill rod connecting block (22) slide forwards along the blast hole drill rod (23) to complete the drilling operation of the blast hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310102571.5A CN115874927B (en) | 2023-02-13 | 2023-02-13 | Tunnel inverted arch bottom plate blast hole drilling method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310102571.5A CN115874927B (en) | 2023-02-13 | 2023-02-13 | Tunnel inverted arch bottom plate blast hole drilling method and device |
Publications (2)
| Publication Number | Publication Date |
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| CN115874927A true CN115874927A (en) | 2023-03-31 |
| CN115874927B CN115874927B (en) | 2023-05-16 |
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| CN202310102571.5A Active CN115874927B (en) | 2023-02-13 | 2023-02-13 | Tunnel inverted arch bottom plate blast hole drilling method and device |
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Citations (10)
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| CN217176502U (en) * | 2022-03-23 | 2022-08-12 | 泸州长江液压密封件有限公司 | Full-hydraulic tunnel drilling machine with explosion-proof displacement sensor |
| CN218324759U (en) * | 2022-04-25 | 2023-01-17 | 天津同鑫煤矿机械制造有限公司 | Drilling machine frame angle adjusting and positioning device |
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| RU43032U1 (en) * | 2004-08-24 | 2004-12-27 | Открытое акционерное общество "Научно-исследовательский проектно-конструкторский институт горного и обогатительного машиностроения" | EXPLOSIVE DRILLING MACHINE |
| CN108166924A (en) * | 2017-12-27 | 2018-06-15 | 山东科技大学 | A kind of medium-thickness seam high punch automatic lifting drilling machine and its implementation |
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| CN212296217U (en) * | 2020-05-27 | 2021-01-05 | 中交一公局集团有限公司 | Drilling rack for ensuring smooth blasting effect of roadbed |
| CN212803049U (en) * | 2020-06-04 | 2021-03-26 | 河南省现代爆破技术有限公司汝阳分公司 | Demolish blasting big gun hole drilling equipment |
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| CN218324759U (en) * | 2022-04-25 | 2023-01-17 | 天津同鑫煤矿机械制造有限公司 | Drilling machine frame angle adjusting and positioning device |
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| CN115874927B (en) | 2023-05-16 |
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