CN115874927B - 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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- CN115874927B CN115874927B CN202310102571.5A CN202310102571A CN115874927B CN 115874927 B CN115874927 B CN 115874927B CN 202310102571 A CN202310102571 A CN 202310102571A CN 115874927 B CN115874927 B CN 115874927B
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Abstract
The invention relates to a method and a device for drilling a blast hole in a tunnel inverted arch bottom plate, which belong to the technical field of tunnel excavation, and comprise a fixed bottom plate, wherein a drill rod installation block is arranged on the fixed bottom plate, the height of the drill rod installation block is adjusted through the expansion and contraction of a first hydraulic cylinder and a second hydraulic cylinder, meanwhile, 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 boss in a first annular 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 method and a device for drilling blast holes in a bottom plate of a tunnel inverted arch.
Background
At present, most of mountain tunnels in railway and highway engineering adopt a novel Otto method construction of 'few disturbance, early blasting anchor, duty measurement and tight sealing', wherein the angle and depth of the arc blasthole of the inverted arch bottom plate play an important role in inverted arch super-undermining, and as the position of the blasthole of the inverted arch bottom plate is close to the lower position, workers are usually required to drill holes on the ground by bending down, squatting down or lying down, the construction is very inconvenient, the downward inclined angle of the blasthole is too large or too small, the hole position deviates easily, a large-area super-mining phenomenon occurs after blasting, concrete resources are seriously wasted, construction cost is increased, or local undermining occurs, secondary blasting is required, the secondary blasting is usually converted into serious super-mining, the working procedure construction time is wasted, the labor intensity of workers is increased, and more losses are caused on the project.
The existing scheme is to manually punch holes, realize propelling force through bowing or squatting, easily cause inaccurate punching angles, and relate to coordination of drilling depth, drill rod length and other problems.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide a method and a device for drilling a blast hole of a tunnel inverted arch bottom plate, and the method and the device for drilling the blast hole of the tunnel inverted arch bottom plate solve the problem that the blast hole of the inverted arch bottom plate is difficult to drill downwards in the prior art.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a tunnel inverted arch bottom plate big gun hole drilling equipment, includes PMKD, be equipped with the drilling rod installation piece on the PMKD, drilling rod installation piece lower extreme is equipped with a plurality of drilling rod installation bosss, first annular has been seted up on the PMKD, 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 pass through installation axle swing joint, movable mounting has rotatory first revolving stage on the piston rod of second pneumatic cylinder, first revolving stage passes through the annular platform movable mounting that the cross section is T shape in the piston rod upper end of second pneumatic cylinder, first revolving stage passes through installation axle swing joint with the drilling rod installation boss, 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.
Further, the installation sliding grooves 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 sliding grooves, and the first motor and the drill rod connection block realize reciprocating motion of the first motor and the drill rod connection block on the drill rod installation block in one mode of a screw rod, an air cylinder and a rack.
Further, an attitude sensor is installed on the drill rod connecting block.
Further, a screw rod mounting groove is formed in the middle of the drill rod mounting block, a first screw rod is movably mounted in the screw rod mounting groove, a first sliding block is movably mounted on the first screw rod, the first sliding block is fixedly connected with the first motor and the drill rod connecting block through a connecting boss, a nut mounting groove is formed in the first sliding block, a first nut is mounted in the nut mounting groove, and the first nut is mounted on the first screw rod.
Further, the 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 collar, and spring collar 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, solid fixed ring fixed mounting of second is in the nut mounting groove, gu fixed ring of second is equipped with the third installation annular, the dead draw-in groove of lock of W shape has been seted up to the third installation annular both sides, the dead draw-in groove of lock is circumference and distributes, install the go-between in the solid fixed ring of second, the go-between outside is equipped with first collar platform, first collar platform movable mounting is in the third installation annular, first collar platform both sides are equipped with the mounting hole of circumference distribution, movable mounting is in the mounting hole and is contradicted the dead post of lock, it is the fillet to contradict dead post both ends of lock to be equipped with the second spring collar on, be equipped with the second spring on the second spring collar, make the dead post of conflict inward movement through the elasticity of second spring, be equipped with the second spline in the go-between, first spline movable mounting is in the second spline.
Further, the end face, close to the first spring, of the first nut is provided with balls distributed circumferentially.
Further, a drill core collecting box is arranged on one side of the fixed bottom 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.
Further, a second annular groove is formed in the fixed bottom plate, the second annular groove is concentric with the second hydraulic cylinder, the second annular groove is internally movably provided with a third hydraulic cylinder, and a piston rod of the third hydraulic cylinder is movably provided with a drill rod installation boss below the drill rod installation block.
Further, the concrete operation steps of the tunnel inverted arch bottom plate blast hole drilling device are as follows:
step one: placing the drilling device on one side of a blast hole to be drilled, and determining the inclination angle of each direction of the device through data acquired by an attitude sensor;
step two: compensating and correcting the inclination angle of each direction of the device by controlling the angle of the drill rod installation block;
step three: the height of the drill rod installation block is adjusted through the expansion and contraction of the first hydraulic cylinder and the second hydraulic cylinder on the basis of correction, and meanwhile, 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;
step four: when the movement of the drill rod mounting block is regulated in place, the positions of the first hydraulic cylinder and the first rotary table are fixed, and the inclination angle of the drill rod mounting block is regulated by regulating the position of the mounting boss in the first annular groove;
step five: and starting the first motor, and after the first motor drives the blasthole drill rod to rotate through the drill rod connecting block, enabling the first motor and the drill rod connecting block to slide forwards along the blasthole drill rod to finish the drilling operation of the blasthole.
The invention has the beneficial effects that:
according to the invention, the height of the drill rod installation block is adjusted through the expansion and contraction of the first hydraulic cylinder and the second hydraulic cylinder, meanwhile, 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, and the inclination angle of the drill rod installation block is adjusted by adjusting the position of the installation boss in the first annular groove, so that the position and the angle of the drill rod installation block can be accurately positioned, and higher drilling precision is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort;
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 another schematic view of the drill rod mounting 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 a first slider of the present invention;
FIG. 6 is a schematic view of the internal structure of the first slider of the present invention;
FIG. 7 is a schematic view of the inside of a first slider of the present invention in an alternative configuration;
FIG. 8 is a schematic view of a second retaining ring according to the present invention;
FIG. 9 is a schematic view of a structure of a blocking lock column according to the present invention;
FIG. 10 is a second retaining ring installation schematic of the present invention;
in the drawings, the list of components represented by the various numbers is as follows:
the drill rod assembly comprises a 1-fixed bottom plate, a 3-first sliding block, a 2-drill rod mounting block, a 4-second fixed ring, a 11-drill core collecting box, 12-two side arranged, a 13-first annular groove, a 14-second annular groove, a 15-first hydraulic cylinder, a 16-second hydraulic cylinder, a 17-third hydraulic cylinder, a 18-first rotary table, a 19-mounting boss, a 21-first motor, a 22-drill rod connecting block, a 23-drill rod, a 24-attitude sensor, a 25-drill rod mounting boss, a 26-mounting chute, a 27-screw rod mounting groove, a 28-first screw rod, a 31-connecting boss, a 32-nut mounting groove, a 33-first spring, a 34-spring mounting ring, a 35-first nut, a 36-first fixed ring, a 37-second mounting ring table, a 38-first spline groove, a 42-third mounting annular groove, a 43-locking clamp groove, a 45-connecting ring, a 46-first mounting ring table, a 47-second spline groove, a 48-interference locking post, a 351-first spline, a 352-boss, a 482-second spline, and a 481-second spring.
Detailed Description
1-10, a tunnel inverted arch bottom plate blast hole drilling device comprises a fixed bottom plate 1, wherein a drill rod installation block 2 is arranged on one side of the fixed bottom plate 1, a plurality of drill rod installation bosses 25 are arranged at the lower end of the drill rod installation block 2, a first annular groove 13 is formed in the fixed bottom plate 1, a second hydraulic cylinder 16 is arranged on the upper surface of the fixed bottom plate 1, the second hydraulic cylinder 16 is concentric with the first annular groove 13, a first hydraulic cylinder 15 is movably arranged in the first annular groove 13, an installation boss 19 is arranged at the lower end of the first hydraulic cylinder 15, the installation boss 19 is fixedly arranged in the first annular groove 13, the 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 arranged on a piston rod upper end of the second hydraulic cylinder 16 through a circular table with a T-shaped cross section, the first rotary table 18 is movably connected with the drill rod installation boss 25 through an installation shaft, a first motor 21 is movably arranged on the drill rod installation block 2, a first motor 22 is connected with the first motor 21, a movable connection block 22 is movably arranged on the drill rod installation block 2 through a connection block 23, and a connection block 23 is arranged on the connection block 23;
through such design, when the hole that needs the low level is bored, place drilling equipment in waiting to bore hole one side earlier, through the height of flexible regulation drilling rod installation piece 2 of first pneumatic cylinder 15 and second pneumatic cylinder 16, the angle of drilling rod installation piece 2 and ground is controlled through the difference in height between first pneumatic cylinder 15 and the second pneumatic cylinder 16 simultaneously, when drilling rod installation piece 2 motion regulation is put 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 drilling rod installation piece 2 is adjusted in rotation 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, compared with the prior art, it has higher drilling precision to adopt artifical hand drilling machine to carry out drilling operation, guarantee that the hole angle and position are unanimous with the design theoretical value guarantees blasting effect ideal, start first motor 21 after installation boss 19 adjusts the position, first motor 21 drives hole 23 through connecting block 22 and rotates, first motor 21 and the forward and drilling rod 21 can not be along the angle of the current precision adjustment of the hole of the current drilling rod device of the multiple-side of the forward direction of the drilling rod installation piece 23, the current precision adjustment of the hole is not enough precision of the current drilling equipment.
Further, the installation boss 19 is installed on the annular guide rail in the first annular groove 13 or driven by a motor, so that higher precision can be achieved relative to manual adjustment positions, the blasthole drill rods 23 and the drill rod connecting block 22 are connected by adopting a detachable connecting flange, different blasthole drill rods 23 can be replaced conveniently, and the connecting flange is connected by bolts.
In some disclosures, the two sides of the drill rod installation block 2 are provided with installation sliding grooves 26, the first motor 21 and the drill rod connection block 22 are 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 in a mode of a screw rod, an air cylinder, a rack and the like.
In some disclosures, the drill pipe connecting block 22 is provided with an attitude sensor 24, so that by designing the attitude sensor 24, the inclination angle of each direction of the device can be determined according to the data acquired by the attitude sensor 24, the attitude of the drilling device can be calculated, then the angle of the drill pipe mounting block 2 can be corrected according to the position of the fixed bottom plate 1, the actual drilling angle is ensured to be corrected, if the inclination angle of the ground leads to the drilling device having an alpha-degree inclination angle in one direction, the drill pipe mounting block 2 compensates and corrects the alpha inclination angle during angle adjustment; through such design, can guarantee the accuracy of actual drilling angle and position.
In some disclosures, a screw rod mounting groove 27 is formed in the middle of a drill rod mounting block 2, a first screw rod 28 is movably mounted in the screw rod mounting groove 27, a first sliding block 3 is movably mounted on the first screw rod 28, the first sliding block 3 is fixedly connected with a first motor 21 and a drill rod connecting block 22 through a connecting boss 31, the first sliding block 3 moves on the first screw rod 28 to drive the first motor 21 and the drill rod connecting block 22 to move, a nut mounting groove 32 is formed in the first sliding block 3, a first nut 35 is mounted in the nut mounting groove 32, and the first nut 35 is mounted on the first screw rod 28;
further, a second mounting ring table 37 is arranged at one end of the first nut 35, a first spring 33 is arranged at one end of the nut mounting groove 32, which is close to the point of the blasthole drill rod 23, a spring mounting ring 34 is fixedly arranged at one end of the first spring 33, 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 be driven by an axis to push and can freely rotate, a first fixing ring 36 is arranged at one end of the nut mounting groove 32, which is far away from the blasthole drill rod 23, the first fixing ring 36 is fixedly mounted in the nut mounting groove 32, a first spline groove 38 is arranged in the first fixing ring 36, a first spline 351 is movably mounted in the first spline groove 38, by the design, the first spline 351 is movably mounted in the first spline groove 38, and the first nut 35 can not synchronously rotate with the first screw 28, so that the first nut 35 is driven to move forwards, the first nut 35 is driven to move forwards by the first spline groove 38, the first spline groove 33 is driven by the first motor 33, so that the first spline 33 is driven by the first motor 33 to move forwards, and the first drill rod 23 can be driven by the first slider 3 to move forwards, so that the first slider 21 is driven by the first slider 23 is driven to move forwards, so that the first slider 21 can be driven by the first slider is driven by the first slider 3 to move;
when the drilling is blocked and the current pressure cannot continue to rotate, 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 the maximum value, the first spline 351 is completely separated from the first spline groove 38, at the moment, the first nut 35 releases the limit of self rotation and has larger axial pressure, and the first nut 35 synchronously rotates along with the first screw 28, so that the first nut 35 is prevented from continuously moving forwards to further compress the first spring 33, so that the pressure of the gun hole drill rod 23 is excessively high, the breakage deformation of the gun hole drill rod 23 and the drill rod connecting block 22 and the blocking damage of the first motor 21 are caused, when the gun hole drill rod 23 continues to drill under the elasticity of the first spring 33, the first sliding block 3 moves forwards, the first fixed ring 36 and the second fixed ring 4 simultaneously move forwards, and the first spline 351 can reenter the first spline groove 38; reversing the first screw 28 when the gun hole drill rod 23 is required to return;
further, when the gun hole drill rod 23 cannot rotate, the first nut 35 and the first screw 28 synchronously rotate, when the first spline 351 rotates to be aligned with the first spline groove 38, the first spline 351 reenters a section in the first spline groove 38 under the action of the elastic force of the first spring 33, then the first spline 351 can be separated again under the condition that the gun hole drill rod 23 cannot rotate, and in the process, the reciprocating vibration is transmitted to the first sliding block 3 through the first spring 33 in the reciprocating process of the first nut 35, so that the gun hole drill rod 23 is driven to vibrate and impact to strengthen the impact of the gun hole drill rod 23 to the bottom of the gun hole, so that the rock stratum with higher drilling hardness is drilled, and the smooth drilling is ensured;
in some disclosures, two spline bosses 352 are arranged on the first spline 351, the height of the spline bosses 352 is higher than that of the first spline 351, a second fixing ring 4 is arranged at one end, close to the first nut 35, of the first fixing ring 36, the second fixing ring 4 is fixedly arranged in the nut mounting groove 32, a third mounting ring groove 42 is arranged on the second fixing ring 4, W-shaped locking clamping grooves 43 are arranged at two sides of the third mounting ring groove 42, the locking clamping grooves 43 are circumferentially distributed, a connecting ring 45 is arranged in the second fixing ring 4, a first mounting ring table 46 is arranged at the outer side of the connecting ring 45, the first mounting ring table 46 is movably arranged in the third mounting ring groove 42, circumferentially distributed mounting holes are arranged at two sides of the first mounting ring table 46, round corner locking columns 48 are movably arranged in the mounting holes, round corner locking columns 48 are arranged at two ends of the collision locking columns 48, second spring mounting rings 481 are arranged on the collision locking columns 48, the second spring mounting ring 481 is provided with a second spring 482, the abutting locking post 48 moves inwards through the elastic force of the second spring 482, the connecting ring 45 is internally provided with a second spline groove 47, the first spline 351 is movably arranged in the second spline groove 47, when the abutting locking post 48 is not abutted by external force, one end of the abutting locking post 48, which is close to the outer side, is not exposed out of the outer surface of the connecting ring 45 under the elastic force of the second spring 482, at the moment, the connecting ring 45 is rotated 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 moves outwards against the elastic force, the abutting locking post 48 is clamped into the locking clamping groove 43, two sides of the W shape are provided with vertical surfaces 44 which can cooperate with the abutting locking post 48 to finish the fixation of two rotation directions of the connecting ring 45, and at the moment, the connecting ring 45 is rotated along with the rotation of the first nut 35 along with the rotation of the first spline 351; further, the method comprises the steps of, the first spline 351 is in a transition with an oblique angle between the first spline 351.
Through such design, when first spline 351 just breaks away from first spline groove 38 to first spring 33 motion, two spline boss 352 are located the side that the conflict lock post 48 is close to first spring 33 respectively, so when big gun hole drilling rod 23 drills back first slider 3 forward motion, first solid fixed ring 36 and second solid fixed ring 4 simultaneously move forward for first nut 35, first spline 351 can reenter first spline groove 38 in, and spline boss 352 conflict lock post 48, the outside motion of elasticity overcoming, conflict lock post 48 card is gone into lock draw-in groove 43, the both sides of W shape are equipped with vertical face 44 can cooperate the fixed of two direction of rotation of conflict lock post 48 completion go-in ring 45, so can assist first spline groove 38 to carry out the rotation fixedly to first nut 35 through the cooperation of second spline groove 47 and first spline groove 38, so can avoid first spline 351 and first spline groove 38 to cooperate the volume undersize and lead to first spline 38 or first spline 351 intensity not to cause destruction to lose efficacy.
In some disclosures, the end surface of the first nut 35, which is close to the first spring 33, is provided with balls distributed circumferentially, and by virtue of such design, the friction resistance when the first nut 35 and the first screw 28 rotate synchronously can be reduced by the rolling of the balls; further, the first screw 28 may be a screw to obtain higher accuracy.
In some disclosures, the fixed bottom plate 1 is provided with a second ring groove 14, the second ring groove 14 is concentric with the second hydraulic cylinder 16, the second ring groove 14 is internally and movably provided with a third hydraulic cylinder 17, a piston rod of the third hydraulic cylinder 17 is movably provided with a drill rod installation boss 25 below the drill rod installation block 2, through the design, when the angle of the drill rod installation block 2 is adjusted, the third hydraulic cylinder 17 and the first hydraulic cylinder 15 synchronously move, and the third hydraulic cylinder 17 provides support or tension for the drill rod installation block 2, so that the stress of the first hydraulic cylinder 15 can be reduced, and meanwhile, the adjustment precision and stability of the drill rod installation block 2 can be ensured by multi-point limiting.
In some disclosures, a drill core collecting box 11 is arranged on one side of the fixed bottom plate 1, and the drill core collecting box 11 is positioned on the side surface of the drill rod mounting block 2; the drill core collecting box 11 both sides are equipped with unloading inclined plane 12, so can be after the completion of drilling of big gun hole drilling rod 23, adjust the position of drilling rod installation piece 2 and make big gun hole drilling rod 23 orientation drill core collecting box 11 in, so can collect the rock core in the big gun hole drilling rod 23 in the drill core collecting box 11 and follow unloading inclined plane 12 landing and avoid piling up in the centre, avoid the rock core to scatter to the ground and cause personnel potential safety hazard simultaneously.
Working principle:
the height of the drill rod installation block 2 is adjusted through the expansion and contraction of the first hydraulic cylinder 15 and the second hydraulic cylinder 16, meanwhile, the angle between the drill rod installation block 2 and the ground is controlled through the height difference between the first hydraulic cylinder 15 and the second hydraulic cylinder 16, when the drill rod installation block 2 moves and is adjusted in place, the positions of the first hydraulic cylinder 15 and the first rotary table 18 are fixed, the first hydraulic cylinder 15 is driven to move through the position of the adjusting installation boss 19 in the first annular groove 13, the first hydraulic cylinder 15 moves to drive the rotation of the drill rod installation block 2 to adjust the inclination angle of the drill rod installation block 2, so that the position and the angle of the drill rod installation block 2 can be accurately positioned, higher drilling precision is guaranteed, and the blast hole angle and the position are guaranteed to be consistent with design theoretical values, so that the blasting effect is ideal.
The foregoing has shown and described the basic 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, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.
Claims (7)
1. The utility model provides a tunnel inverted arch bottom plate big gun hole drilling equipment, including fixed baseplate (1), its characterized in that, be equipped with drilling rod installation piece (2) on fixed baseplate (1), drilling rod installation piece (2) lower extreme is equipped with a plurality of drilling rod installation bosss (25), first annular (13) have been seted up on fixed baseplate (1), fixed baseplate (1) upper surface is equipped with second pneumatic cylinder (16), second pneumatic cylinder (16) are concentric with first annular (13), 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 pneumatic cylinder (16) through the annular table that the cross section is the T shape, first revolving stage (18) are through installation boss (21), first revolving stage (18) and motor and installation boss (21) are connected movably in first annular (21), first spout (21) are installed in the installation boss (21);
a screw rod mounting groove (27) is formed in the middle of the drill rod mounting block (2), a first screw rod (28) is movably mounted in the screw rod mounting groove (27), a first sliding block (3) is movably mounted on the first screw rod (28), the first sliding block (3) is fixedly connected with a first motor (21) and a drill rod connecting block (22) through a connecting boss (31), a nut mounting groove (32) is formed in the first sliding block (3), a first nut (35) is mounted in the nut mounting groove (32), and the first nut (35) is mounted on the first screw rod (28);
a first spring (33) is arranged at one end, close to a point of the blasthole drill rod (23), of the nut mounting groove (32), a spring mounting ring (34) is fixedly arranged at one end of the first spring (34), 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 at one side of the first nut (35), and the first spline (351) is movably mounted in the first spline groove (38);
the utility model discloses a novel anti-collision device for the automobile, which comprises a first spline (351) and a second spline (351), wherein two spline bosses (352) are arranged on the first spline (351), the spline bosses (352) are higher than the first spline (351), one end of the first fixed ring (36) close to the first nut (35) is provided with a second fixed ring (4), the second fixed ring (4) is fixedly arranged in a nut mounting groove (32), the second fixed ring (4) is provided with a third mounting groove (42), two sides of the third mounting groove (42) are provided with W-shaped locking clamping grooves (43), the locking clamping grooves (43) are distributed in a circle, a connecting ring (45) is arranged in the second fixed ring (4), the outer side of the connecting ring (45) is provided with a first mounting ring table (46), two sides of the first mounting ring table (46) are provided with circumferentially distributed mounting holes, movable mounting holes are provided with abutting locking columns (48), two ends of the abutting locking columns (48) are rounded corners, the abutting locking columns (48) are provided with second spring mounting rings (48), the second spring mounting rings (481) are provided with elastic force on the second spring mounting columns (481) and move inwards through the second spring (482), the first spline (351) is movably mounted within the second spline groove (47).
2. The tunnel inverted arch bottom plate blast hole drilling device according to claim 1, wherein mounting sliding grooves (26) are formed in two sides of the drill rod mounting block (2), the first motor (21) and the drill rod connecting block (22) are movably mounted in the mounting sliding grooves (26), and the first motor (21) and the drill rod connecting block (22) realize reciprocating motion on the drill rod mounting block (2) through one mode of a screw rod, a cylinder and a rack.
3. A tunnel inverted arch floor blasthole drilling device according to claim 2, characterized in that the drill pipe connection block (22) is provided with an attitude sensor (24).
4. A tunnel inverted arch floor blasthole drilling device according to claim 3, characterized in that the end face of the first nut (35) adjacent to the first spring (33) is provided with circumferentially distributed balls.
5. The tunnel inverted arch bottom plate blast hole drilling device according to claim 4, wherein a drill core collecting box (11) is arranged on one side of the fixed bottom plate (1), the drill core collecting box (11) is located on the side face of the drill rod mounting block (2), and blanking inclined planes (12) are arranged on two sides of the drill core collecting box (11).
6. The tunnel inverted arch bottom plate blast hole drilling device according to claim 5, wherein 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 arranged in a third hydraulic cylinder (17), and a piston rod of the third hydraulic cylinder (17) is movably arranged on a drill rod installation boss (25) below the drill rod installation block (2).
7. The tunnel inverted arch floor blasthole drilling device according to claim 6, wherein the concrete operation steps of the tunnel inverted arch floor blasthole drilling device are as follows:
step one: placing a drilling device on one side of a blast hole to be drilled, and determining the inclination angle of each direction of the device through data acquired by an attitude sensor (24);
step two: compensating and correcting the inclination angle of each direction of the device by controlling the angle of the drill rod mounting block (2);
step three: the height of the drill rod installation block (2) is adjusted through the expansion and contraction of the first hydraulic cylinder (15) and the second hydraulic cylinder (16) on the basis of correction, and meanwhile, the angle between the drill rod installation 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 mounting block (2) moves and is adjusted in place, the positions of the first hydraulic cylinder (15) and the first rotary table (18) are fixed, and the inclination angle of the drill rod mounting block (2) is adjusted by adjusting the position of the mounting boss (19) in the first annular groove (13);
step five: after the first motor (21) is started, the first motor (21) drives the blasthole drill rod (23) to rotate through the drill rod connecting block (22), and the first motor (21) and the drill rod connecting block (22) slide forwards along the blasthole drill rod (23) to finish the drilling operation of the blasthole.
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 |
|---|---|
| CN115874927A CN115874927A (en) | 2023-03-31 |
| CN115874927B true CN115874927B (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| RU43032U1 (en) * | 2004-08-24 | 2004-12-27 | Открытое акционерное общество "Научно-исследовательский проектно-конструкторский институт горного и обогатительного машиностроения" | EXPLOSIVE DRILLING MACHINE |
| CN108166924B (en) * | 2017-12-27 | 2019-11-05 | 山东科技大学 | A kind of medium-thickness seam high punch automatic lifting drilling machine and its implementation |
| CN109281610A (en) * | 2018-11-09 | 2019-01-29 | 李二猛 | A kind of constructing tunnel drilling device |
| CN211692338U (en) * | 2020-03-24 | 2020-10-16 | 孙琳 | Tunnel safety blasting construction device |
| CN111456628A (en) * | 2020-05-14 | 2020-07-28 | 辽宁工程技术大学 | Fully mechanized coal mining face cross-fault drilling manipulator device and using method |
| 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***技术有限公司汝阳分公司 | Demolish blasting big gun hole drilling equipment |
| CN212958439U (en) * | 2020-06-12 | 2021-04-13 | 中铁十八局集团有限公司 | Drilling equipment special for rapid tunnel construction |
| 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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