Power transmission line tower vertical grounding drilling device

Abstract

The invention relates to the field of soil layer drilling equipment, and discloses a vertical grounding drilling device for a power transmission line tower. The drilling rod is arranged on the drilling frame; the drill bit is arranged at the bottom of the drill rod; the conveying shaft is arranged in the drill bit, a spiral blade is arranged on the outer wall of the conveying shaft, and the cooling pipes are arranged on the conveying shaft; by arranging the drilling frame and related parts, automatic adjustment and efficient operation in the drilling process are achieved. When the probe is in contact with a soft soil layer in the drilling process, the detection component automatically adjusts the flow and pressure of flushing liquid in the cooling pipe according to the change of the distance between the bottom of the probe and the conveying shaft, cooling liquid supply is reduced, and loss or collapse of the soft soil layer is avoided; when the drill bit is in contact with a hard geological layer, the detection component automatically increases the flow and pressure of flushing fluid, the drill bit is effectively cooled and lubricated, rock debris is flushed away in time, abrasion of the drill bit is reduced, and the drilling efficiency is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of soil layer drilling equipment, and in particular to a vertical grounding drilling device for a transmission line tower. Background Art

[0002] Transmission line towers are an important part of the power transmission system. Their lightning protection is a routine part of the operation and maintenance of power companies, and the tower grounding grid is a basic measure to achieve lightning protection. In actual grounding projects, when some tower grounding grids are limited by the construction area, it is impossible to use extended grounding to reduce resistance, and only vertical grounding grids can be used for grounding transformation. Traditional deep well resistance reduction is expensive and the construction feasibility is low. Many mountainous and hilly areas cannot transport large machinery. Since the length of the vertical grounding body is generally more than 2m, it is difficult for a single grounding body to be directly driven into the deep soil. Therefore, the vertical grounding body can be divided into sections on site and connected in sections using threads and connectors. When entering the ground, it is carried out in sections. Although the current artificial vertical grounding body construction method can achieve a certain resistance reduction effect, the depth of a single grounding body is limited, and it is difficult to increase the soil discharge range of the grounding body. Under the action of the impulse current, due to the formation of spark discharge, all vertical grounding electrodes, including those buried in the soil with poor conductivity, play a role in dissipating the impulse current. At this time, from the physical point of view, the flow process of impulse current in the vertical grounding electrode is similar to that of the horizontal grounding electrode. The difference is that the dispersion effect at the end of the vertical grounding electrode is significantly better than that of the horizontal grounding electrode. In the lightning protection and grounding engineering of poles or buildings, due to the urban area, densely built areas and special terrain conditions, compared with the horizontal grounding electrode (the buried area is generally tens of meters, and the construction is extremely difficult), the vertical grounding electrode occupies a small area, has a small amount of engineering, and has a good resistance reduction effect. It is widely used in actual engineering.

[0003] In addition, in the current mechanized vertical drilling construction process, the use of flushing fluid is an important link to ensure drilling efficiency and quality, and there are significant differences in the demand for flushing fluid under different geological conditions. In aquifers or loose soil layers, due to the loose structure and strong permeability of the stratum, flushing fluid is easily lost in large quantities through cracks or pores. Large amounts of flushing fluid leakage not only increase construction costs, but may also cause stratum damage or aggravate the collapse of the hole wall. In contrast, in geological hard layers such as rock layers, due to the dense structure and low permeability of the stratum, the problem of flushing fluid loss is relatively small, but the heat and rock cuttings generated during the drilling of the hard layer are relatively large. In order to cool the drill bit, lubricate the contact surface between the drill bit and the rock, and effectively remove the rock cuttings, a larger flushing fluid flow rate is usually required to maintain drilling efficiency.

[0004] Therefore, during drilling work, it is very important to adjust the flow rate of flushing fluid in time to ensure drill bit cooling, cuttings removal, hole wall stability, and avoid excessive loss of flushing fluid or environmental pollution, thereby improving the drilling efficiency and construction quality of vertical grounding construction of transmission line towers. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a vertical grounding drilling device for a transmission line tower, aiming to alleviate the above-mentioned problems at least to a certain extent.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: A vertical grounding drilling device for a transmission line tower, comprising: Drilling rack; A drill rod provided on the drilling frame; a drill bit disposed at the bottom of the drill rod; A conveying shaft disposed in the drill bit, wherein the outer wall of the conveying shaft is provided with spiral blades, and a plurality of cooling tubes are disposed on the conveying shaft; A suction pipe disposed at the top of the drill pipe is connected to the drilling frame and is used to extract mud. A liquid pipe is provided in the suction pipe, and the liquid pipe is connected to the cooling pipe and is used to transport flushing liquid. A probe is arranged in the conveying shaft, the probe passes through the conveying shaft and extends to the bottom of the drill bit, the bottom height of the probe is lower than the bottom height of the drill bit, and the probe can slide on the conveying shaft; A drilling component disposed between the drilling frame and the drill rod, used to drive the drill rod to move up and down and rotate to achieve drilling operations; A rotating component disposed between the drill rod and the conveying shaft, used to reversely drive the conveying shaft to rotate when the drill rod rotates, and to synchronously rotate the conveying shaft and the drill rod in relative directions; A detection component disposed between the probe and the conveying shaft, used to detect the hardness of the geology and to adjust the flow rate and pressure of the flushing liquid when it enters the cooling pipe when the spacing between the bottom of the probe and the conveying shaft changes; Wherein, the liquid flow and pressure in the liquid pipe are kept constant, and when the distance between the bottom of the probe and the conveying shaft becomes shorter, the detection component increases the liquid flow and pressure entering the cooling pipe; The liquid flow and pressure in the liquid pipe are kept constant, and when the distance between the bottom of the probe and the conveying shaft becomes longer, the detection component reduces the liquid flow and pressure entering the cooling pipe.

[0007] Preferably, the detection component includes an elastic member connected between the probe and the conveying shaft.

[0008] Preferably, a drilling bar is connected to the bottom of the probe.

[0009] Preferably, the detection component also includes a retaining ring connected to the liquid pipe, a conical table is slidably connected to the liquid pipe, a screw a is provided in the liquid pipe, the conical table is threadedly connected to the screw a, a connecting pipe is connected to the conveying shaft, there is a distance between the connecting pipe and the liquid pipe, an adjusting pipe is provided in the distance between the connecting pipe and the liquid pipe, the adjusting pipe is rotatably connected between the connecting pipe and the liquid pipe, a plurality of arc guide rails are provided on the outer wall of the adjusting pipe, a guide rod slidably connected to the arc guide rail is connected to the probe, and the screw a is connected to the adjusting pipe.

[0010] Preferably, the detection component also includes a connecting piece connected to the liquid tube, an overflow chamber is formed between the connecting piece and the conveying shaft, a plurality of overflow ports are opened on the side wall of the overflow chamber, a baffle is slidably connected in the overflow port, a drainage tube is provided in the overflow chamber, a connecting rod is connected between the drainage tube and the conical table, and a wetting tube is connected to the suction tube.

[0011] Preferably, the suction pipe comprises a suction section a and a suction section b, the suction section a is rotatably connected to the top of the drill rod and connected to the drilling frame, the suction section b is rotatably connected inside the suction section a and connected to the conveying shaft, the connecting piece is connected to the suction section b, the wetting tube is connected to the suction section b, the suction section b is connected to a guide boss, and a suction port communicating with the suction section b is provided at the bottom of the guide boss; The suction section a is connected with a delivery pipe, and the liquid pipe is rotatably connected to the bottom of the delivery pipe.

[0012] Preferably, the rotating component includes a gear a connected to the suction section b, the bottom of the suction section a is rotatably connected to a gear b meshing with the gear a, and the inner wall of the drill pipe is connected to a gear c meshing with the gear b.

[0013] Preferably, one end of the cooling pipe is provided with an oblique opening.

[0014] Preferably, the drilling component includes a limit sleeve slidably connected to the drilling frame, the drill rod is rotatably connected to the limit sleeve, the suction section a is connected to the limit sleeve, the outer wall of the drill rod is provided with a limit slide groove, the sliding sleeve in the limit slide groove is provided with a gear d, the drilling frame is connected to a motor a, the motor a is connected to a gear e meshing with the gear d, the drilling frame is provided with a protective sleeve, and the gear d and gear e are rotatably connected to the protective sleeve.

[0015] Preferably, the drilling component further comprises a motor b connected to the drilling frame, a lead screw b is connected to the motor b, and the limit sleeve is threadedly connected to the lead screw b.

[0016] In summary, the present invention mainly has the following beneficial effects: The present application realizes automatic adjustment and efficient operation during the drilling process by setting a drilling frame and related components. When the probe contacts the soft soil layer during the drilling process, the detection component automatically adjusts the flow and pressure of the flushing liquid in the cooling pipe according to the change of the distance between the bottom of the probe and the conveying shaft, reduces the supply of coolant, and avoids the loss or collapse of the soft soil layer; when contacting the hard geological layer, the detection component automatically increases the flow and pressure of the flushing liquid, effectively cools and lubricates the drill bit, and washes away the rock cuttings in time, reduces the wear of the drill bit, and ensures the drilling efficiency. In addition, the rotating component drives the conveying shaft to rotate in the reverse direction when the drill rod rotates, helping to quickly discharge mud and debris, keep the hole clean, and prevent mud accumulation from affecting the drilling quality. The system of the present application does not require complex electrical control equipment, and realizes intelligent response through mechanical structure. It can flexibly adapt to different geological conditions, does not need to frequently adjust the power of the pump, effectively optimizes the use of flushing fluid, improves the adaptability and efficiency of drilling operations, reduces construction costs, and ensures the efficiency and reliability of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the drill rod structure of the present invention; Figure 3 yes Figure 2 A schematic diagram of the enlarged local structure at point A in the middle; Figure 4 It is a schematic diagram of the drill bit structure of the present invention; Figure 5 It is a schematic diagram of the conveying shaft structure of the present invention; Figure 6 It is a schematic diagram of the structure of the regulating tube of the present invention; Figure 7 It is a schematic diagram of the drainage tube structure of the present invention; Figure 8 It is a schematic diagram of the protective cover structure of the present invention.

[0018] Reference numerals: 100, drilling frame; 101, drill rod; 102, drill bit; 103, conveying shaft; 104, spiral blade; 105, cooling pipe; 106, suction pipe; 107, liquid pipe; 108, probe; 109, elastic member; 110, drilling bar; 200, retaining ring; 201, conical platform; 202, lead screw a; 203, connecting pipe; 204, adjusting pipe; 205, arc guide rail; 206, guide rod; 207, connecting piece; 208, overflow cavity; 209, overflow port; 210, retaining piece; 211, drainage pipe; 212, connecting rod; 213, wetting pipe; 214, oblique port; 300, suction section a; 301, suction section b; 302, guide boss; 303, suction port; 304, delivery pipe; 400, gear a; 401, gear b; 402, gear c; 500, limit sleeve; 501, limit slide; 502, gear d; 503, motor a; 504, gear e; 505, protective sleeve; 506, motor b; 507, screw b. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] refer to Figure 1-Figure 8 , a vertical grounding drilling device for a transmission line tower, comprising: Drilling rack 100; A drill rod 101 disposed on a drilling frame 100; A drill bit 102 disposed at the bottom of the drill rod 101; A conveying shaft 103 is disposed in the drill bit 102, a spiral blade 104 is disposed on the outer wall of the conveying shaft 103, and a plurality of cooling tubes 105 are disposed on the conveying shaft 103; A suction pipe 106 disposed at the top of the drill pipe 101 is connected to the drilling frame 100 and is used to extract mud. A liquid pipe 107 is disposed in the suction pipe 106 and is connected to the cooling pipe 105 for conveying flushing liquid. A probe 108 is disposed in the conveying shaft 103. The probe 108 passes through the conveying shaft 103 and extends to the bottom of the drill bit 102. The bottom height of the probe 108 is lower than the bottom height of the drill bit 102. The probe 108 can slide on the conveying shaft 103. The drilling component provided between the drilling frame 100 and the drill rod 101 is used to drive the drill rod 101 to move up and down and rotate to achieve the drilling operation; The rotating component disposed between the drill rod 101 and the conveying shaft 103 is used to reversely drive the conveying shaft 103 to rotate when the drill rod 101 rotates, and the conveying shaft 103 and the drill rod 101 rotate synchronously in relative directions; The detection component disposed between the probe 108 and the conveying shaft 103 is used to detect the hardness of the geology and to adjust the flow rate and pressure of the flushing liquid when it enters the cooling pipe 105 when the distance between the bottom of the probe 108 and the conveying shaft 103 changes; The liquid flow and pressure in the liquid pipe 107 are kept constant, and when the distance between the bottom of the probe 108 and the conveying shaft 103 becomes shorter, the detection component increases the liquid flow and pressure entering the cooling pipe 105; The liquid flow and pressure in the liquid pipe 107 are kept constant, and when the distance between the bottom of the probe 108 and the conveying shaft 103 becomes longer, the detection component reduces the liquid flow and pressure entering the cooling pipe 105; By setting up the drilling frame 100, when in use, the drilling frame 100 can be placed in the area where drilling is required, the drill bit 102 corresponds to the preset drilling point, the head end of the liquid pipe 107 can be connected to a pump for conveying flushing liquid (such as clean water), and the suction pipe 106 can be connected to a pump for extracting mud to keep the drilling environment clean. Specifically, the operator can start the drilling component, and the drilling component can move the position of the drill rod 101 downward and rotate the drill rod 101. The multiple probes 108 at the bottom of the drill rod 101 will first contact the geological surface, and then the drill bit 102 will contact the geological surface to perform the drilling operation. During operation, due to the different hardness of the geology, when a certain geology layer is relatively soft, as the drill rod 101 sinks, the particles of the soft soil layer (such as loose soil or aquifer) are arranged relatively loosely, and there are more pores or cracks inside, so its bearing capacity is relatively weak, and the probe 108 is easily pressed into the soil layer. At this time, the distance between the bottom of the probe 108 and the conveying shaft 103 is relatively large, and the detection component can automatically adjust the flow and pressure of the flushing liquid according to the change in the distance between the probe 108 and the conveying shaft, and reduce the supply of flushing liquid in the cooling pipe 105 to prevent excessive liquid from penetrating into the soft soil layer and causing loss or collapse. On the contrary, when the probe 108 contacts a hard geological layer (such as a rock layer), due to the dense structure of the geological layer and the strong bearing capacity, the resistance encountered by the probe 108 in the hard geological layer is relatively large, and the downward pressing depth is relatively small, and the distance between the bottom of the probe 108 and the conveying shaft 103 is also shortened accordingly. At this time, the detection component automatically increases the flow rate and pressure of the flushing fluid delivered to the cooling pipe 105 according to the change in the distance between the probe 108 and the delivery shaft 103. A larger flushing fluid flow rate and pressure can not only effectively cool and lubricate the drill bit 102, but also promptly flush away the high-temperature rock debris generated during the drilling process, ensuring that the drill bit 102 continues to operate efficiently while reducing the wear on the drill bit 102. During the entire drilling process, the rotating component can reversely drive the delivery shaft 103 to rotate when the drill rod 101 rotates, and the spiral blades 104 on the delivery shaft 103 rotate accordingly, quickly transporting the mud and debris generated by drilling upward to the suction pipe 106, and discharging them out of the hole through the suction pump, thereby keeping the hole clean and preventing mud accumulation from affecting the drilling quality. In addition, the present application adjusts the flow and pressure in the cooling pipe 105 through the detection component without interfering with the flow and pressure of the flushing liquid in the liquid pipe 107, so as to maintain a constant supply, and realizes the dynamic adjustment of the liquid flow and pressure in the cooling pipe 105 by combining the adjustment mechanism of the detection component, without the need for operators to frequently adjust the power of the delivery pump, and can flexibly adapt to different geological conditions and automatically optimize the use of flushing liquid, which not only avoids the scouring of soft soil layers, but also meets the drilling requirements of hard geological layers, thereby effectively improving the adaptability and operating efficiency of drilling equipment. In addition, the timely discharge of mud and debris avoids the problem of accumulation in the hole and ensures the cleanliness and efficiency of the drilling process.The entire system does not require additional complex electrical control equipment, and relies on mechanical structure to achieve intelligent response to different geological conditions, greatly reducing the complexity and cost of construction operations and meeting the requirements for efficiency and reliability in the construction of transmission line tower foundations.

[0021] As a further solution of the present invention, the detection component includes an elastic member 109 connected between the probe 108 and the delivery shaft 103; By setting the elastic member 109, the probe 108 can have a certain elastic response when it contacts the geological layer. The elastic member 109 (such as a spring) is used to limit the position of the probe 108 relative to the conveying shaft 103 and respond according to the characteristics of different geological layers. In soft soil layers, since the soil particles are loose and the resistance of the soil layer is small, the elastic potential energy of the spring has little effect on the pressing depth of the probe 108, and the probe 108 can penetrate into the soil layer. At this time, the gap between the bottom of the probe 108 and the bottom of the conveying shaft 103 will be larger. In harder soil layers (such as hard rock layers), the resistance of the soil layer is larger. As the drilling component allows the drill rod 101 to continue to sink, the probe 108 will move relative to the conveying shaft 103. At this time, the gap between the bottom of the probe 108 and the bottom of the conveying shaft 103 will gradually become smaller. This setting enables the probe 108 to automatically adjust according to the hardness change of the soil layer, thereby effectively detecting the softness and hardness of the soil layer.

[0022] As a further solution of the present invention, a drilling bar 110 is connected to the bottom of the probe 108; By setting the drilling bar 110, the probe 108 can provide effective cutting force to the soil layer when rotating. The drilling bar 110 is connected to the bottom of the probe 108, and produces a cutting effect in the soil layer as the probe 108 rotates. When the rotating component starts and rotates the drill rod 101, the conveying shaft 103 rotates in the opposite direction, driving the probe 108 to rotate. When the drilling bar 110 rotates with the probe 108, its cutting edge can effectively cut the soil layer, especially in a relatively hard soil layer, thereby enhancing the drilling efficiency. At the same time, the rotating probe 108 helps to reduce the resistance in the drilling process and improve the penetration ability of the drill bit 102 through the cutting force generated. It is worth noting that although the drilling bar 110 can provide a certain cutting force, its cutting ability is limited, especially when facing a hard soil layer (such as a rock layer or a hard clay layer), and the elastic member 109 between the probe 108 and the conveying shaft 103 also needs to be considered. The drilling rod 101 is provided with a downward sinking force by the drilling components, and the probe 108 and the drilling bar 110 follow the drilling rod 101 to move downward. When encountering a hard soil layer, due to the action of the elastic member 109, the probe 108 and the drilling bar 110 cannot be subjected to the rigid sinking force, and the cutting force of the drilling bar 110 cannot effectively overcome the compressive strength of the hard soil layer. Therefore, the drilling bar 110 is provided to reduce the resistance between the cylindrical probe 108 and the soil layer when rotating, but it will not significantly affect the detection of the soil layer.

[0023] As a further solution of the present invention, the detection component also includes a retaining ring 200 connected to the liquid pipe 107, a conical platform 201 is slidably connected to the liquid pipe 107, a lead screw a202 is provided in the liquid pipe 107, the conical platform 201 is threadedly connected to the lead screw a202, a connecting pipe 203 is connected to the conveying shaft 103, there is a gap between the connecting pipe 203 and the liquid pipe 107, an adjusting pipe 204 is provided in the gap between the connecting pipe 203 and the liquid pipe 107, the adjusting pipe 204 is rotatably connected between the connecting pipe 203 and the liquid pipe 107, a plurality of arc guide rails 205 are provided on the outer wall of the adjusting pipe 204, a guide rod 206 slidably connected to the arc guide rail 205 is connected to the probe 108, and the lead screw a202 is connected to the adjusting pipe 204; By setting the guide rod 206, when the probe 108 and the drilling rod 110 are blocked by a hard soil layer, as the drill rod 101 sinks, the probe 108 will move relative to the conveying shaft 103 and shrink in the conveying shaft 103. At this time, the guide rod 206 can force the adjustment tube 204 to rotate in the conveying shaft 103 through the arc guide rail 205, and the lead screw a202 rotates with the adjustment tube 204, and the tapered platform 201 can be moved downward by the force of the thread, and the distance between the side wall of the tapered platform 201 and the retaining ring 200 will gradually increase, and the side wall of the tapered platform 201 will be moved downward. The distance between the wall and the retaining ring 200 will gradually increase, thereby adjusting the flow cross-sectional area of ​​the flushing liquid in the liquid pipe 107 and increasing the flow rate of the flushing liquid. On the contrary, if the probe 108 and the drilling bar 110 do not need too much resistance in the softer soil layer, the guide rod 206 can appropriately reduce the rotation of the adjusting tube 204 through the sliding action of the arc guide rail 205, and the screw a202 rotates to drive the cone table 201 to move upward, reducing the distance between the side wall of the cone table 201 and the retaining ring 200, thereby reducing the flow cross-sectional area in the liquid pipe 107 and reducing the flow rate and pressure of the flushing liquid. This adjustment mechanism automatically adjusts the flushing effect according to the hardness change of the soil layer by accurately controlling the flow rate of the flushing liquid, avoiding the loss or collapse caused by excessive liquid entering the soft soil layer. In addition, the structure can realize automatic control of the flow rate and pressure of the flushing liquid by combining the movement feedback of the probe 108 with the dynamic adjustment of the cone table 201 without additional manual intervention. This not only avoids the reduction in drilling efficiency due to insufficient drilling depth of the probe 108, but also provides more effective cooling and lubrication during drilling in hard soil layers, while removing rock cuttings, keeping the hole clean, and improving overall operating efficiency and drilling quality.

[0024] As a further solution of the present invention, the detection component also includes a connecting piece 207 connected to the liquid pipe 107, an overflow chamber 208 is formed between the connecting piece 207 and the conveying shaft 103, a plurality of overflow ports 209 are opened on the side wall of the overflow chamber 208, a baffle 210 is slidably connected in the overflow port 209, a drainage tube 211 is provided in the overflow chamber 208, a connecting rod 212 is connected between the drainage tube 211 and the conical platform 201, and a wetting tube 213 is connected to the suction tube 106; By setting the drainage pipe 211, the liquid in the liquid pipe 107 is guided by the drainage pipe 211 and can directly reach the gap between the retaining ring 200 and the conical platform 201. When the soil is soft, the gap between the retaining ring 200 and the conical platform 201 is small. Since the flushing liquid in the liquid pipe 107 has a certain pressure, when the liquid passes through the gap between the conical platform 201 and the retaining ring 200, the resistance it encounters increases. A part of the liquid will flow back into the overflow port 209 and flow from the wetting pipe 213 to the spiral blade 104. A part of the liquid will pass through the gap between the retaining ring 200 and the conical platform 201 to reach the regulating pipe 204 and the connecting pipe 203, and gush out from the cooling pipe 105. The pressure of this part of the liquid will also be reduced, thereby effectively avoiding excessive accumulation of liquid or excessive pressure on the soft soil layer, and maintaining a stable flushing effect. When the soil is hard, the conical platform 201 moves downward, and the distance between it and the retaining ring 200 increases. The guide pipe gradually moves downward with the conical platform 201, which will gradually reduce the overflow port 209 of the retaining plate 210, so that the flow of liquid through the overflow port 209 is restricted, and more liquid will flow to the drainage pipe 211 and enter the cooling pipe 105. At this time, the liquid pressure will also increase accordingly, so that the supply and pressure of the liquid match the characteristics of the drilling soil layer, thereby realizing the precise regulation of the liquid flow and pressure during the drilling process. This design can automatically adjust the liquid flow direction and pressure according to the hardness of the soil layer, ensuring that excessive liquid accumulation and pressure are avoided in the soft soil layer to maintain a stable flushing effect; while in the hard soil layer, by reducing the overflow port 209 and increasing the liquid pressure, it can ensure sufficient liquid supply and effectively support the needs of the drilling operation and cooling system. In general, the design dynamically adjusts the liquid flow and pressure to adapt to different geological conditions, thereby enhancing the stability, efficiency and safety of the drilling process. In addition, when the soil is soft, the flow rate and pressure of the flushing liquid will decrease. As the drill bit 102 continues to drill, there is no large amount of flushing liquid to flush the debris, and the concentration of the mud will be higher. For the suction pump, the higher concentration of mud will increase the load of the pump, which may reduce the working efficiency of the pump and may even cause the pump to be blocked or damaged. For this reason, an overflow port 209 and a wetting pipe 213 are set. After a portion of the separated liquid flows out of the wetting pipe 213, it will directly flow to the spiral blade 104, diluting the mud being transported by the spiral blade 104, thereby reducing the concentration of the mud and reducing the deposition of solid particles in the mud, preventing the increase of pump resistance or pump blockage caused by excessive viscosity of the mud, and reducing the load of the suction pump. The design of the wetting pipe 213 and the overflow port 209 can ensure the reasonable distribution of liquid, which can not only improve the working efficiency of the pump, but also ensure the fluidity of the mud during drilling, and ensure the stability of the flushing and cleaning effect.

[0025] As a further solution of the present invention, the suction pipe 106 includes a suction section a300 and a suction section b301, the suction section a300 is rotatably connected to the top of the drill rod 101 and connected to the drilling frame 100, the suction section b301 is rotatably connected inside the suction section a300 and connected to the conveying shaft 103, the connecting piece 207 is connected to the suction section b301, the wetting tube 213 is connected to the suction section b301, the suction section b301 is connected to a guide boss 302, and the bottom of the guide boss 302 is provided with a suction port 303 connected to the suction section b301; The suction section a300 is connected to a delivery pipe 304, and the liquid pipe 107 is rotatably connected to the bottom of the delivery pipe 304; By setting the suction section a300, when in use, the liquid inlet of the suction pump can be connected to the suction section a300. When the suction pump is working, the suction force generated will be transmitted to the suction port 303 through the suction section a300 and the suction section b301. When the conveying shaft 103 and the spiral blade 104 rotate to convey the mud to the connection between the drill bit 102 and the drill rod 101, the mud will enter the suction section b301 through the suction port 303, and enter the suction pump along the suction section b301 and the suction section a300, thereby realizing effective suction and conveying of the mud.

[0026] As a further solution of the present invention, the rotating component includes a gear a400 connected to the suction section b301, the bottom of the suction section a300 is rotatably connected to a gear b401 meshing with the gear a400, and the inner wall of the drill rod 101 is connected to a gear c402 meshing with the gear b401; By setting the meshing structure of gear a400, gear b401 and gear c402, when the drilling component rotates the drill rod 101, the suction section a300 connected to the drilling frame 100 will not rotate. The rotation of the drill rod 101 can rotate the gear b401 through the gear c402, so that the suction section b301 can rotate through the setting of gear a400. When the suction section b301 rotates, it can drive the conveying shaft 103 to rotate, thereby achieving the purpose of making the drill rod 101 and the conveying shaft 103 rotate synchronously in opposite directions, and the mud can be efficiently transported.

[0027] As a further solution of the present invention, an oblique opening 214 is provided at one end of the cooling pipe 105; By setting the bevel 214, when the drill pipe 101 rotates counterclockwise, the conveying shaft 103 will rotate clockwise through the rotating component. At this time, the suction section b301 and the conveying shaft 103 will rotate clockwise through the setting of gear a400, gear b401 and gear c402. In this process, the bevel 214 will make the outflow end of the clean water in the cooling pipe 105 face away from the rotation direction of the conveying shaft 103, so that the clean water in the cooling pipe 105 can be discharged smoothly, and at the same time, mud is prevented from flowing back into the conveying shaft 103 due to the rotation of the cooling pipe 105, thereby ensuring the cooling effect and preventing the mud from polluting the cooling system.

[0028] As a further solution of the present invention, the drilling component includes a limit sleeve 500 slidably connected to the drilling frame 100, the drill rod 101 is rotatably connected to the limit sleeve 500, the suction section a300 is connected to the limit sleeve 500, the outer wall of the drill rod 101 is provided with a limit slide groove 501, the sliding sleeve in the limit slide groove 501 is provided with a gear d502, the drilling frame 100 is connected to a motor a503, the motor a503 is connected to a gear e504 meshing with the gear d502, the drilling frame 100 is provided with a protective sleeve 505, and the gear d502 and the gear e504 are rotatably connected to the protective sleeve 505; By setting the motor a503, the power provided by the motor a503 is transmitted to the gear d502 through the gear e504, and the gear d502 then drives the rotation of the drill rod 101 through the limit slide 501, thereby achieving the purpose of driving the drill rod 101 and the drill bit 102 to rotate. In addition, the protective cover 505 effectively prevents external dust, dirt or other substances from entering the gear transmission part, thereby reducing the risk of system failure.

[0029] As a further solution of the present invention, the drilling component further includes a motor b506 connected to the drilling frame 100, a lead screw b507 is connected to the motor b506, and a limit sleeve 500 is threadedly connected to the lead screw b507; By setting up motor b506, motor b506 drives the screw b507 to rotate, so that the limit sleeve 500 can move accurately along the axial direction of the screw. When the drill rod 101 sinks, it can slide on the gear d502 through the limit slide groove 501, so that the drill rod 101 can gradually sink in the vertical direction while receiving the rotation drive, thereby achieving the purpose of drilling.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vertical grounding drilling device for a transmission line tower, characterized in that: include: Drilling rack (100); A drill rod (101) disposed on the drilling frame (100); A drill bit (102) disposed at the bottom of the drill rod (101); A conveying shaft (103) is arranged inside the drill bit (102), the outer wall of the conveying shaft (103) is provided with a spiral blade (104), and a plurality of cooling pipes (105) are arranged on the conveying shaft (103); A suction pipe (106) provided at the top of the drill rod (101) is connected to the drilling frame (100) and is used to extract mud; a liquid pipe (107) is provided in the suction pipe (106); the liquid pipe (107) is connected to the cooling pipe (105) and is used to transport flushing liquid; a probe (108) disposed in the conveying shaft (103), the probe (108) passing through the conveying shaft (103) and extending to the bottom of the drill bit (102), the bottom height of the probe (108) being lower than the bottom height of the drill bit (102), and the probe (108) being capable of sliding on the conveying shaft (103); A drilling component provided between the drilling frame (100) and the drill rod (101), used for driving the drill rod (101) to move up and down and rotate, so as to realize a drilling operation; a rotating component disposed between the drill rod (101) and the conveying shaft (103), used to reversely drive the conveying shaft (103) to rotate when the drill rod (101) rotates, and to synchronously rotate the conveying shaft (103) and the drill rod (101) in relative directions; A detection component disposed between the probe (108) and the conveying shaft (103), used to detect the hardness of the geology and to adjust the flow rate and pressure of the flushing liquid when it enters the cooling pipe (105) when the distance between the bottom of the probe (108) and the conveying shaft (103) changes; The liquid flow and pressure in the liquid pipe (107) are kept constant, and when the distance between the bottom of the probe (108) and the conveying shaft (103) becomes shorter, the detection component increases the liquid flow and pressure entering the cooling pipe (105); The liquid flow and pressure in the liquid pipe (107) are kept constant, and when the distance between the bottom of the probe (108) and the conveying shaft (103) becomes longer, the detection component reduces the liquid flow and pressure entering the cooling pipe (105).

2. A vertical grounding drilling device for a transmission line tower according to claim 1, characterized in that: The detection component comprises an elastic member (109) connected between the probe (108) and the conveying shaft (103).

3. A vertical grounding drilling device for a transmission line tower according to claim 1, characterized in that: The bottom of the probe (108) is connected to a drilling bar (110).

4. A vertical grounding drilling device for a transmission line tower according to claim 1, characterized in that: The detection component further comprises a retaining ring (200) connected to the liquid pipe (107); a conical platform (201) is slidably connected to the liquid pipe (107); a lead screw a (202) is provided in the liquid pipe (107); the conical platform (201) is threadedly connected to the lead screw a (202); a connecting pipe (203) is connected to the conveying shaft (103); a distance is provided between the connecting pipe (203) and the liquid pipe (107); the connecting pipe (203) is connected to the liquid pipe (107); An adjusting tube (204) is provided in the interval between the connecting tube (203) and the liquid tube (107); the adjusting tube (204) is rotatably connected between the connecting tube (203) and the liquid tube (107); a plurality of arc guide rails (205) are provided on the outer wall of the adjusting tube (204); a guide rod (206) slidably connected to the arc guide rails (205) is connected to the probe (108); and the lead screw a (202) is connected inside the adjusting tube (204).

5. A vertical grounding drilling device for a transmission line tower according to claim 4, characterized in that: The detection component further comprises a connecting piece (207) connected to the liquid tube (107), an overflow chamber (208) is formed between the connecting piece (207) and the conveying shaft (103), a plurality of overflow ports (209) are provided on the side wall of the overflow chamber (208), a baffle (210) is slidably connected to the overflow port (209), a drainage tube (211) is provided in the overflow chamber (208), a connecting rod (212) is connected between the drainage tube (211) and the conical platform (201), and a wetting tube (213) is connected to the suction tube (106).

6. A vertical grounding drilling device for a transmission line tower according to claim 5, characterized in that: The suction pipe (106) comprises a suction section a (300) and a suction section b (301); the suction section a (300) is rotatably connected to the top of the drill rod (101) and connected to the drilling frame (100); the suction section b (301) is rotatably connected inside the suction section a (300) and connected to the conveying shaft (103); the connecting piece (207) is connected to the suction section b (301); the wetting pipe (213) is connected to the suction section b (301); the suction section b (301) is connected to a guide boss (302); a suction port (303) communicating with the suction section b (301) is provided at the bottom of the guide boss (302); The suction section a (300) is connected to a delivery pipe (304), and the liquid pipe (107) is rotatably connected to the bottom of the delivery pipe (304).

7. A vertical grounding drilling device for a transmission line tower according to claim 6, characterized in that: The rotating component comprises a gear a (400) connected to the suction section b (301); the bottom of the suction section a (300) is rotatably connected to a gear b (401) meshing with the gear a (400); and the inner wall of the drill rod (101) is connected to a gear c (402) meshing with the gear b (401).

8. A vertical grounding drilling device for a transmission line tower according to claim 1, characterized in that: An oblique opening (214) is provided at one end of the cooling pipe (105).

9. A vertical grounding drilling device for a transmission line tower according to claim 6, characterized in that: The drilling component comprises a limiting sleeve (500) slidably connected to the drilling frame (100); the drill rod (101) is rotatably connected to the limiting sleeve (500); the suction section a (300) is connected to the limiting sleeve (500); a limiting sliding groove (501) is provided on the outer wall of the drill rod (101); a gear d (502) is provided in the sliding sleeve in the limiting sliding groove (501); a motor a (503) is connected to the drilling frame (100); a gear e (504) meshing with the gear d (502) is connected to the motor a (503); a protective sleeve (505) is provided on the drilling frame (100); the gear d (502) and the gear e (504) are rotatably connected to the protective sleeve (505).

10. A vertical grounding drilling device for a transmission line tower according to claim 9, characterized in that: The drilling component further comprises a motor b (506) connected to the drilling frame (100), a lead screw b (507) being connected to the motor b (506), and the limit sleeve (500) being threadedly connected to the lead screw b (507).

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