Rock breaking anchor rod drilling machine device and method

Abstract

The invention relates to a rock-breaking anchor rod drilling machine device and method. The rock-breaking anchor rod drilling machine device comprises a walking mechanism, a hydraulic lifting rod, a spiral drilling rod, a rock-breaking drill bit and a drill bit dismounting and replacing mechanism. The hydraulic lifting rod is installed on the walking mechanism, the spiral drill rod is installed on the hydraulic lifting rod and driven by a motor fixed to the hydraulic lifting rod to rotate, one end of the rock breaking drill bit is connected with the end of the spiral drill rod through threads, and a plurality of alloy drill bits are fixed to the other end of the rock breaking drill bit. A threaded spiral deslagging groove is formed in the outer circumferential surface of the rock breaking drill bit, the rotating direction of the spiral deslagging groove is opposite to the rotating direction of threads connected with the spiral drill rod, and the drill bit dismounting and replacing mechanism is provided with internal threads in threaded connection with the spiral deslagging groove in a matched mode. The special drill bit is connected with the spiral drill rod for rock stratum soil texture, the construction stability is high, the rock drilling construction efficiency is high, the drilling effect is good, a special disassembly and replacement tool is arranged for the drill bit, disassembly and replacement are convenient, and manpower is saved.

Description

Technical Field

[0001] The invention relates to the technical field of foundation pit support prestressed anchor cable construction, and in particular to a rock breaking anchor drilling rig device and method. Background Art

[0002] In the existing composite foundation construction, prestressed anchor cables are an indispensable link. The quality of prestressed anchor cable construction is directly related to the quality and safety of composite foundation support projects. With the promotion of prestressed anchor cable construction, the traditional anchor rod process is mostly a spiral drill, which drills the drill rod into the soil through the spiral drill to complete the drilling construction, and finally buries the prestressed anchor cable in the soil. Although this drilling method can achieve good construction effects, the construction efficiency is too low for rock strata and soil, and the construction cost is high. Summary of the invention

[0003] The purpose of the present invention is to provide a rock breaking anchor drilling rig device and method, which adopts a special drill bit connected to a spiral drill rod according to the rock stratum soil, and a plurality of alloy drill bits are arranged at the end of the drill bit to rotate and crush the rock. The stripped rock and soil layer can be carried out of the anchor hole through the spiral grooves on the drill bit and the spiral grooves on the spiral drill rod as the rotation proceeds. The drill bit and the spiral drill rod are connected by threads, and the threaded connection becomes tighter and tighter during the drilling process, thereby increasing the stability of the construction. The present invention has high efficiency in rock drilling construction and good drilling effect, and a special disassembly and replacement tool is arranged for the drill bit, which is convenient for disassembly and replacement and saves manpower.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A rock breaking anchor drilling rig device comprises a traveling mechanism, a hydraulic lifting rod, a spiral drill rod, a rock breaking drill bit, and a drill bit replacement mechanism; the hydraulic lifting rod is installed on the traveling mechanism, the spiral drill rod is installed on the hydraulic lifting rod and is driven to rotate by a motor fixed to the hydraulic lifting rod, one end of the rock breaking drill bit is connected to the end of the spiral drill rod by a thread, and a plurality of alloy drill bits are fixed to the other end of the rock breaking drill bit, and a threaded spiral slag discharge groove is provided on the outer circumferential surface of the rock breaking drill bit, and the rotation direction of the spiral slag discharge groove is opposite to the rotation direction of the thread connected to the spiral drill rod, and the drill bit replacement mechanism is provided with an internal thread screwed with the spiral slag discharge groove.

[0006] The rock-breaking drill bit includes a threaded connection part, a barrel, a spiral slag discharge groove, and an alloy drill bit. The threaded connection part is connected to the spiral drill rod through an internal thread at one end of the barrel, and a plurality of alloy drill bits are fixed to the other end of the barrel. A threaded spiral slag discharge groove is provided on the outer circumferential surface of the barrel.

[0007] The drill bit replacement mechanism includes a connecting block and a fixing pile. The fixing pile is fixed on the walking mechanism. A positioning groove is provided on the fixing pile. One end of the connecting block is provided with an internal thread that is screwed to the spiral slag discharge groove. The shape of the other end of the connecting block matches the positioning groove, and the positioning groove is non-circular.

[0008] The positioning groove is square.

[0009] The plurality of alloy drill bits are arranged to be inclined at multiple angles.

[0010] A method for using the rock breaking bolt drilling rig device comprises the following steps:

[0011] 1) Screw the rock-breaking drill bit onto the spiral drill rod without tightening it. Send the rock-breaking drill bit to the surface of the drill soil layer, start the motor to make the spiral drill rod rotate in the same direction as the tightening direction of the rock-breaking drill bit. Under the resistance of the rock, the spiral drill rod and the rock-breaking drill bit are tightened and driven to break and peel the rock layer.

[0012] 2) The broken rock and soil are screwed into the spiral slag groove on the surface of the rock breaking drill bit and the spiral groove on the surface of the spiral drill rod, and are discharged from the outside of the soil as the spiral drill rod rotates;

[0013] 3) When replacing or disassembling the rock breaker drill bit, screw the connecting block onto the rock breaker drill bit without tightening it, drive the hydraulic lifting rod to insert the other end of the connecting block into the positioning groove of the fixed pile, rotate the spiral drill rod in the opposite direction, tighten the rock breaker drill bit and the connecting block, loosen the spiral drill rod and the rock breaker drill bit, and then the rock breaker drill bit can be removed from the spiral drill rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] A rock-breaking anchor drilling rig device and method, which adopts a special drill bit connected to a spiral drill rod according to the rock stratum soil, and a plurality of alloy drill bits are provided at the end of the drill bit to rotate and crush the rock. The stripped rock and soil layer can be carried out of the anchor hole through the spiral grooves on the drill bit and the spiral grooves on the spiral drill rod as the rotation proceeds. The drill bit and the spiral drill rod are connected by threads, and the threaded connection becomes tighter and tighter during the drilling process, thereby increasing the stability of the construction. The present invention has high efficiency in rock drilling construction and good drilling effect, and a special disassembly and replacement tool is provided for the drill bit, which is convenient for disassembly and replacement and saves manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of a rock breaking drill bit of the present invention.

[0018] Figure 3It is a schematic diagram of the assembly of the drill bit replacement mechanism when disassembling the drill bit.

[0019] In the figure: 1-travel mechanism, 2-hydraulic lifting rod, 3-auger rod, 4-rock breaking drill bit, 4-1 alloy drill bit, 4-2 threaded connection part, 4-3 spiral slag discharge chute, 4-4 cylinder, 5-motor, 6-operating room, 7-chassis, 8-hydraulic cylinder, 9-drill bit replacement mechanism, 9-1 connecting block, 9-2 fixed pile. DETAILED DESCRIPTION

[0020] The present invention is described in detail below in conjunction with the embodiments, but the implementation scope of the present invention is not limited only to the following embodiments.

[0021] like Figure 1-3 As shown, a rock breaking anchor drilling rig device includes a walking mechanism 1, a hydraulic lifting and landing rod 2, a spiral drill rod 3, a rock breaking drill bit 4, and a drill bit replacement mechanism 9; the hydraulic lifting and landing rod 2 is installed on the walking mechanism 1, the spiral drill rod 3 is installed on the hydraulic lifting and landing rod 2 and is driven to rotate by a motor 5 fixed on the hydraulic lifting and landing rod 2, one end of the rock breaking drill bit 4 is connected to the end of the spiral drill rod 3 through a thread, and the other end of the rock breaking drill bit 4 is fixed with a plurality of alloy drill bits 4-1, and the outer circumferential surface of the rock breaking drill bit 4 is provided with a threaded spiral slag groove 4-3, and the rotation direction of the spiral slag groove 4-3 is opposite to the rotation direction of the thread connected to the spiral drill rod 3, and the drill bit replacement mechanism 9 is provided with an internal thread screwed with the spiral slag groove 4-3.

[0022] The hydraulic lifting rod 2 is connected to the traveling mechanism 1 in an articulated manner, and the hydraulic lifting rod 2 is driven to be lifted and lowered by the hydraulic cylinder 8 .

[0023] The rock breaking drill bit 4 comprises a threaded connection part 4-2, a barrel 4-4, a spiral slag removal groove 4-3, and an alloy drill bit 4-1. The threaded connection part 4-2 is connected to the spiral drill rod 3 through an internal thread at one end of the barrel 4-4, and a plurality of alloy drill bits 4-1 are fixed to the other end of the barrel 4-4. A threaded spiral slag removal groove 4-3 is provided on the outer circumferential surface of the barrel 4-4. The rotation direction of the spiral slag removal groove 4-3 is opposite to the rotation direction of the internal thread of the threaded connection part 4-2.

[0024] The drill bit replacement mechanism 9 includes a connecting block 9-1 and a fixed pile 9-2. The fixed pile 9-2 is fixed on the walking mechanism 1. A positioning groove is provided on the fixed pile 9-2. One end of the connecting block 9-1 is provided with an internal thread that is screwed to the spiral slag discharge groove 4-3. The shape of the other end of the connecting block 9-1 matches the positioning groove, and the positioning groove is non-circular.

[0025] The positioning groove is preferably square for easy processing.

[0026] Fix the fixed pile 9-2 to the appropriate position of the body of the walking mechanism 1, simply screw the connecting block 9-1 and the rock-breaking drill bit 4, and then put the connecting block 9-1 into the positioning groove of the fixed pile 9-2. The threaded spiral slag groove 4-3 on the outside of the rock-breaking drill bit 4 plays two roles. When drilling, the spiral slag groove 4-3 can be used to rotate to bring sand out from the side of the drill bit. When disassembling, the spiral slag groove 4-3 can be used to cooperate with the connecting block 9-1 to screw, and the rock-breaking drill bit 4 can be easily disassembled from the spiral rotating rod 3 by using the reverse rotation direction to tighten the connecting block 9-1 and loosen the spiral rotating rod 3. Since the spiral rotating rod 3 and the rock-breaking drill bit 4 are screwed tighter and tighter during the drilling process, it is difficult to manually disassemble the rock-breaking drill bit 4 from the spiral rotating rod 3. Through the above-mentioned structural setting, the rock-breaking drill bit 4 can be easily disassembled.

[0027] The alloy drill bits 4-1 are arranged at multiple angles. The alloy drill bits 4-1 are arranged at irregular angles, and when the rock breaking drill bit 4 rotates at high speed, an integral rock breaking drill bit mechanism is formed. The alloy drill bit 4-1 has high hardness and is suitable for drilling holes in harder rock and soil layers, and can break and peel the rock layers.

[0028] A method for using a rock breaking anchor drilling rig comprises the following steps:

[0029] 1) The rock-breaking drill bit 4 is connected to the end of the spiral drill rod 3 by a thread, and it does not need to be tightened. The hydraulic lifting rod 2 is sent to the construction position through the walking mechanism 1, the spiral drill rod 3 is lifted by the hydraulic lifting rod 2, and the rock-breaking drill bit 4 is sent to the surface of the drilling soil layer;

[0030] 2) Start the motor 5 to make the auger rod 3 rotate in the same direction as the tightening direction of the rock breaking drill bit 4. Under the resistance of the rock, the auger rod 3 and the rock breaking drill bit 4 are tightened and tightened, and the rock breaking drill bit 4 is driven to break and peel the rock layer;

[0031] 3) The broken rock and soil are screwed into the spiral slag discharge groove 4-3 on the surface of the rock breaking drill bit 4 and the spiral groove on the surface of the spiral drill rod 3, and are discharged from the outside of the soil body as the spiral drill rod 3 rotates;

[0032] 4) When disassembling the rock drill bit 4, screw the connecting block 9-1 onto the rock drill bit 4 without tightening it, drive the hydraulic lifting rod 2 to insert the other end of the connecting block 9-1 into the positioning groove of the fixing pile 9-2, rotate the spiral drill rod 3 in the opposite direction, tighten the rock drill bit 4 and the connecting block 9-1, loosen the spiral drill rod 3 and the rock drill bit 4, and then the rock drill bit 4 can be removed from the spiral drill rod 3. The rock drill bit 4 can also be reinstalled on the spiral drill rod 3 by reverse operation.

Claims

1. A rock breaking bolt drilling device, characterized in that: It includes a walking mechanism, a hydraulic lifting rod, an auger rod, a rock breaking drill bit, and a drill bit replacement mechanism; the hydraulic lifting rod is installed on the walking mechanism, the auger rod is installed on the hydraulic lifting rod and is driven to rotate by a motor fixed on the hydraulic lifting rod, one end of the rock breaking drill bit is connected to the end of the auger rod through a thread, and a plurality of alloy drill bits are fixed to the other end of the rock breaking drill bit, and a threaded spiral slag discharge groove is provided on the outer circumferential surface of the rock breaking drill bit, and the rotation direction of the spiral slag discharge groove is opposite to that of the thread connected to the auger rod, and the drill bit replacement mechanism is provided with an internal thread screwed with the spiral slag discharge groove.

2. A rock breaking bolt drilling rig device according to claim 1, characterized in that: The rock-breaking drill bit includes a threaded connection part, a barrel, a spiral slag discharge groove, and an alloy drill bit. The threaded connection part is connected to the spiral drill rod through an internal thread at one end of the barrel, and a plurality of alloy drill bits are fixed to the other end of the barrel. A threaded spiral slag discharge groove is provided on the outer circumferential surface of the barrel.

3. A rock breaking bolt drilling rig device according to claim 1, characterized in that: The drill bit replacement mechanism includes a connecting block and a fixing pile. The fixing pile is fixed on the walking mechanism. A positioning groove is provided on the fixing pile. One end of the connecting block is provided with an internal thread that is screwed to the spiral slag discharge groove. The shape of the other end of the connecting block matches the positioning groove, and the positioning groove is non-circular.

4. A rock breaking bolt drilling rig device according to claim 1, characterized in that: The positioning groove is square.

5. A rock breaking bolt drilling rig device according to claim 1 or 2, characterized in that: The plurality of alloy drill bits are arranged to be inclined at multiple angles.

6. A method for using the rock breaking bolt drilling rig device according to any one of claims 1 to 5, characterized in that: The method comprises the following steps: 1) Screw the rock-breaking drill bit onto the spiral drill rod without tightening it. Send the rock-breaking drill bit to the surface of the drill soil layer, start the motor to make the spiral drill rod rotate in the same direction as the tightening direction of the rock-breaking drill bit. Under the resistance of the rock, the spiral drill rod and the rock-breaking drill bit are tightened and driven to break and peel the rock layer. 2) The broken rock and soil are screwed into the spiral slag groove on the surface of the rock breaking drill bit and the spiral groove on the surface of the spiral drill rod, and are discharged from the outside of the soil as the spiral drill rod rotates; 3) When replacing or disassembling the rock breaker drill bit, screw the connecting block onto the rock breaker drill bit without tightening it, drive the hydraulic lifting rod to insert the other end of the connecting block into the positioning groove of the fixed pile, rotate the spiral drill rod in the opposite direction, tighten the rock breaker drill bit and the connecting block, loosen the spiral drill rod and the rock breaker drill bit, and then the rock breaker drill bit can be removed from the spiral drill rod.

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