Rock breaking anchor rod drilling machine device

Abstract

The utility model relates to a rock breaking anchor rod drilling machine device which 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] This utility model relates to the field of prestressed anchor cable construction technology for foundation pit support, and in particular to a rock-breaking anchor drilling device. Background Technology

[0002] In existing composite foundation construction, prestressed anchor cables are an essential component, and the quality of their construction directly affects the quality and safety of the composite foundation support project. With the increasing adoption of prestressed anchor cable construction, the traditional anchoring process mostly involves using auger drilling rigs. The auger drills a drill rod into the soil to complete the drilling, and finally, the prestressed anchor cable is embedded in the ground. While this drilling method achieves good construction results, it is too inefficient and costly for rock and soil conditions. Utility Model Content

[0003] The purpose of this invention is to provide a rock-breaking anchor drilling device. It employs a specially designed drill bit connected to a spiral drill rod for rock and soil conditions. The drill bit end is equipped with multiple alloy drill bits that rotate and break up the rock. The stripped rock and soil layers are carried out of the anchor hole through the spiral grooves on the drill bit and the spiral drill rod as the rock rotates. The drill bit and spiral drill rod are connected by threads, which tighten as the threads tighten during drilling, increasing construction stability. This invention offers high drilling efficiency and good drilling results for rock drilling. Furthermore, it includes a dedicated tool for disassembling and replacing the drill bit, facilitating easy disassembly and replacement and saving manpower.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A rock-breaking anchor drilling rig includes 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 mounted on the traveling mechanism, and the spiral drill rod is mounted on the hydraulic lifting rod and driven to rotate by a motor fixed to the hydraulic lifting rod. One end of the rock-breaking drill bit is threaded to the end of the spiral drill rod, and the other end of the rock-breaking drill bit is fixed with multiple alloy drill bits. The outer circumferential surface of the rock-breaking drill bit is provided with a threaded spiral slag discharge groove, the spiral direction of which is opposite to the spiral direction of the thread connected to the spiral drill rod. The drill bit replacement mechanism is provided with an internal thread that mates with the spiral slag discharge groove.

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

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

[0008] The positioning groove is square.

[0009] The alloy drill bits are arranged at multiple angles.

[0010] Compared with existing technologies, the beneficial effects of this utility model are:

[0011] A rock-breaking anchor drilling device is disclosed, which uses a specially designed drill bit connected to a spiral drill rod for rock and soil conditions. The drill bit end is equipped with multiple alloy drill bits to rotate and break the rock. The stripped rock and soil layers are carried out of the anchor hole through the spiral grooves on the drill bit and the spiral drill rod as the rock rotates. The drill bit and the spiral drill rod are connected by threads. During the drilling process, the threaded connection tightens as it is screwed, increasing the stability of the construction. This utility model has high drilling efficiency and good drilling effect for rock drilling. In addition, it is equipped with special tools for disassembling and replacing the drill bit, which facilitates disassembly and replacement and saves manpower. Attached Figure Description

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 This is a schematic diagram of the rock-breaking drill bit of this utility model.

[0014] Figure 3 This is a schematic diagram of the assembly of the drill bit replacement mechanism during drill bit disassembly.

[0015] In the diagram: 1-Traveling mechanism, 2-Hydraulic lifting bar, 3-Auger drill rod, 4-Rock breaking drill bit, 4-1 Alloy drill bit, 4-2 Threaded connection, 4-3 Spiral slag discharge trough, 4-4 Cylinder, 5-Motor, 6-Control room, 7-Chassis, 8-Hydraulic cylinder, 9-Drill bit replacement mechanism, 9-1 Connecting block, 9-2 Fixed pile. Detailed Implementation

[0016] The present invention will be described in detail below with reference to the embodiments, but the scope of the present invention is not limited to the following embodiments.

[0017] like Figure 1-3As shown, a rock-breaking anchor drilling rig includes a traveling mechanism 1, a hydraulic lifting rod 2, a spiral drill rod 3, a rock-breaking drill bit 4, and a drill bit replacement mechanism 9. The hydraulic lifting rod 2 is mounted on the traveling mechanism 1, and the spiral drill rod 3 is mounted on the hydraulic lifting rod 2 and driven to rotate by a motor 5 fixed on the hydraulic lifting rod 2. One end of the rock-breaking drill bit 4 is threaded to the end of the spiral drill rod 3, and the other end of the rock-breaking drill bit 4 is fixed with multiple alloy drill bits 4-1. The outer circumferential surface of the rock-breaking drill bit 4 is provided with a threaded spiral slag discharge groove 4-3, the spiral direction of the spiral slag discharge groove 4-3 being opposite to the spiral direction of the thread connected to the spiral drill rod 3. The drill bit replacement mechanism 9 is provided with an internal thread that is screwed into the spiral slag discharge groove 4-3.

[0018] The hydraulic lifting boom 2 is connected to the traveling mechanism 1 by a hinge, and the hydraulic lifting boom 2 is driven to lift and lower by the hydraulic cylinder 8.

[0019] The rock-breaking drill bit 4 includes a threaded connection part 4-2, a cylinder 4-4, a spiral slag discharge groove 4-3, and alloy drill bits 4-1. The threaded connection part 4-2 is connected to the spiral drill rod 3 at one end of the cylinder 4-4 via an internal thread. Multiple alloy drill bits 4-1 are fixed at the other end of the cylinder 4-4. A spiral slag discharge groove 4-3 with a thread is provided on the outer circumferential surface of the cylinder 4-4. The spiral direction of the spiral slag discharge groove 4-3 is opposite to the spiral direction of the internal thread of the threaded connection part 4-2.

[0020] The drill bit replacement mechanism 9 includes a connecting block 9-1 and a fixing pile 9-2. The fixing pile 9-2 is fixed on the traveling mechanism 1 and has a positioning groove. One end of the connecting block 9-1 has an internal thread that is screwed into the spiral slag discharge groove 4-3. The other end of the connecting block 9-1 has an outer shape that matches the positioning groove, which is non-circular.

[0021] The positioning groove is preferably square for ease of processing.

[0022] Fix the fixed pile 9-2 to a suitable position on the body of the traveling mechanism 1, simply screw the connecting block 9-1 to the rock-breaking drill bit 4, and then place the connecting block 9-1 into the positioning groove of the fixed pile 9-2. The threaded spiral slag discharge groove 4-3 on the outside of the rock-breaking drill bit 4 serves two purposes: during drilling, the rotation of the spiral slag discharge groove 4-3 can be used to carry sand and soil out from the side of the drill bit; during disassembly, the spiral slag discharge groove 4-3 can be screwed into the connecting block 9-1, and by using the reverse rotation, the rock-breaking drill bit 4 can be tightened to the connecting block 9-1 and loosened to the spiral rotating rod 3, thus easily removing the rock-breaking drill bit 4 from the spiral rotating rod 3. Because the spiral rotating rod 3 and the rock-breaking drill bit 4 become increasingly tighter during drilling, it is difficult to remove the rock-breaking drill bit 4 from the spiral rotating rod 3 manually. With the above-mentioned structural design, the rock-breaking drill bit 4 can be easily disassembled.

[0023] The multiple alloy drill bits 4-1 are arranged at multiple angles. The multiple alloy drill bits 4-1 are at irregular angles, forming an integral rock-breaking drill bit mechanism when the rock-breaking drill bit 4 is rotating at high speed. The alloy drill bits 4-1 have high hardness and are suitable for drilling into harder rock and soil layers, enabling the breaking and stripping of rock layers.

[0024] A method for using a rock-breaking anchor drilling rig includes the following steps:

[0025] 1) The rock-breaking drill bit 4 is connected to the end of the auger rod 3 by a thread, but it does not need to be tightened. The hydraulic lifting rod 2 is sent to the construction position by the traveling mechanism 1, the auger 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.

[0026] 2) Start the motor 5 so that the rotation direction of the spiral drill rod 3 is consistent with the tightening direction of the rock breaking drill bit 4. Under the resistance of the rock, the spiral drill rod 3 and the rock breaking drill bit 4 tighten more and more, and drive the rock breaking drill bit 4 to break and peel off the rock layer.

[0027] 3) The broken rock and soil are spun 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 discharged outside the soil as the spiral drill rod 3 rotates.

[0028] 4) When disassembling the rock-breaking drill bit 4, screw the connecting block 9-1 onto the rock-breaking drill bit 4, but do not tighten it completely. 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 auger rod 3 in the opposite direction. The rock-breaking drill bit 4 will be tightened to the connecting block 9-1, and the auger rod 3 will be loosened from the rock-breaking drill bit 4. The rock-breaking drill bit 4 can then be removed from the auger rod 3. Alternatively, the rock-breaking drill bit 4 can be reinstalled onto the auger rod 3 by reversing the operation.

Claims

1. A rock-breaking anchor drilling rig device, characterized in that, The system includes a traveling mechanism, a hydraulic lifting boom, a spiral drill rod, a rock-breaking drill bit, and a drill bit replacement mechanism. The hydraulic lifting boom is mounted on the traveling mechanism, and the spiral drill rod is mounted on the hydraulic lifting boom and driven to rotate by a motor fixed to the hydraulic lifting boom. One end of the rock-breaking drill bit is connected to the end of the spiral drill rod via a thread, and the other end of the rock-breaking drill bit is fixed with multiple alloy drill bits. The outer circumferential surface of the rock-breaking drill bit is provided with a threaded spiral slag discharge groove, the spiral direction of which is opposite to the spiral direction of the thread connecting the spiral drill rod. The drill bit replacement mechanism is provided with an internal thread that mates with the spiral slag discharge groove.

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

3. The rock-breaking anchor drilling 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 traveling mechanism and has a positioning groove. One end of the connecting block has an internal thread that is screwed into the spiral slag discharge groove. The other end of the connecting block has an outer shape that matches the positioning groove, which is non-circular.

4. The rock-breaking anchor drilling device according to claim 3, characterized in that, The positioning groove is square.

5. A rock-breaking anchor drilling device according to claim 1 or 2, characterized in that, The alloy drill bits are arranged at multiple angles.

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