Power tower foundation pile drilling equipment and soil discharge method thereof

Abstract

The invention relates to the technical field of power tower pile foundation construction equipment, and discloses a power tower foundation pile drilling equipment and a soil discharge method thereof, comprising a base, a gantry, several power heads, a drill rod and a drill bit; several mobile power sources are arranged on the base; a horizontal beam of the gantry is slidably installed between two vertical beams, and the vertical beams of the gantry are slidably installed on the base, and power output ends of the several mobile power sources respectively push the ends of the two vertical beams, and the sliding directions of the vertical beams are perpendicular to the length directions of the vertical beams and the vertical beams move closer to or away from the base when sliding; the drill rod is installed on the bottom end face of the horizontal beam, and the axis of the drill rod is parallel to the length direction of the vertical beam, and the drill rod is driven to rotate by the power output ends of the several power heads; the drill bit is fixedly installed at the bottom end of the drill rod, so that the drill bit can slide back to a position away from the drill hole and the base when completing slag cleaning, thereby solving the problem in the prior art that soil slag and rock chips easily fall into the pile hole or the equipment base when the drill bit cleans slag, thereby reducing the working efficiency of the drill bit.

Description

Technical Field

[0001] The invention relates to the technical field of power tower pile foundation construction equipment, in particular to a power tower foundation pile drilling device and a soil discharge method thereof. Background Art

[0002] In the field of power transmission and transformation engineering, the construction of large-scale transmission line power towers is a crucial step. These towers are often installed in less-trafficked areas, such as mountaintops. Due to geographical constraints, the construction of the tower foundation pile holes typically requires manual excavation, a method that is not only inefficient but also poses significant safety risks. Therefore, large drilling rigs are typically used for drilling.

[0003] When drilling a hole, the drill bit of the existing drilling rig equipment will accumulate rock chips and soil debris after breaking the rock, so the drill bit needs to be lifted out of the hole and cleaned regularly. However, since the drill bit is located above the foundation pile hole and in the middle of the equipment base, it is very inconvenient to move and remove it. In addition, some of the fallen soil debris and rock chips will fall into the foundation pile hole drilled by the drill bit or the equipment base, which not only makes it easy for the drill bit to repeatedly grind the same rock chips and reduce work efficiency, but may also cause the equipment base to malfunction, resulting in damage to the drilling rig. Summary of the Invention

[0004] The purpose of the present invention is to provide a power tower foundation pile drilling device and a soil discharge method thereof, which solves the problem in the prior art that soil debris and rock cuttings easily fall into the pile hole or the equipment base when the drill bit is cleaning the debris, thereby reducing the working efficiency of the drill bit.

[0005] To achieve the above object, the technical solution of the present invention is as follows: a power tower foundation pile drilling device, the drilling device comprising:

[0006] a base, wherein a plurality of mobile power sources are provided on the base;

[0007] A gantry, the gantry comprising a horizontal beam and two vertical beams, the horizontal beam being slidably mounted between the two vertical beams, the sliding direction of the horizontal beam being parallel to the length direction of the vertical beams, the vertical beams being slidably mounted on the base, the power output ends of a plurality of mobile power sources respectively pushing the ends of the two vertical beams, the sliding direction of the vertical beams being perpendicular to the length direction of the vertical beams and the vertical beams moving closer to or away from the base when sliding;

[0008] A plurality of power heads, wherein the plurality of power heads are fixedly mounted on the crossbeam;

[0009] A drill rod, which is detachably mounted on the bottom end surface of the horizontal beam, with its axis parallel to the length direction of the vertical beam, and is driven to rotate by the power output ends of several power heads;

[0010] A drill bit is fixedly mounted on the bottom end of the drill rod.

[0011] As an optional solution, a guide beam is fixedly mounted on the bottom end surface of the vertical beam;

[0012] The top surface of the base is provided with a plurality of guide rails, and the guiding direction of the guide rails is parallel to the sliding direction of the vertical beam;

[0013] A sliding plate is provided between the bottom end surface of the guide beam and the base, and a connecting rail is provided on a side of the sliding plate close to the guide rail;

[0014] The length direction of the connecting slide rail is consistent with the guiding direction of the guide slide rail, and the connecting slide rail is slidably connected to the guide slide rail.

[0015] As an optional solution, any of the guide beams is provided with an avoidance groove;

[0016] The length direction of the guide beam is parallel to the sliding direction of the vertical beam;

[0017] The two ends of the avoidance groove respectively pass through the two end surfaces of the guide beam located in the sliding direction of the vertical beam, the axis of the avoidance groove is parallel to the length direction of the guide beam, and a mounting plate is provided at one end of the avoidance groove away from the mobile power source;

[0018] There are two mobile power sources, which are respectively located at the ends of two vertical beams. The power output end of the mobile power source extends from one end of the avoidance groove and extends from the other end of the avoidance groove. The mobile power source is fixedly connected to the guide beam through the mounting plate.

[0019] As an optional solution, the guide rail is evenly divided into several sections along the sliding direction of the vertical beam, and the length of the connecting rail is greater than the distance between any two adjacent guide rail sections.

[0020] As an optional solution, the moving power source is a driving hydraulic cylinder, and the extension and contraction direction of the piston of the driving hydraulic cylinder is parallel to the sliding direction of the vertical beam.

[0021] As an optional solution, the drill rod is a multi-stage drill rod, and the multi-stage drill rods are detachably connected together by pins.

[0022] As an optional solution, a card plate is slidingly provided on the base, the sliding direction of the card plate is perpendicular to the axis of the drill rod, the distance between the top surface of the card plate and the crossbeam is greater than the length of any level of the drill rod, and the card plate clamps the connection position of two adjacent drill rods.

[0023] A method for discharging soil from a power tower foundation pile, using a power tower foundation pile drilling device, the method comprising:

[0024] In the drilling step, the power head stops working, and the crossbeam moves upward to drive the drill bit to be lifted out of the drill hole.

[0025] In the soil discharge step, the mobile power source pushes the vertical beam to slide, and the drill bit follows the vertical beam to slide to a position away from the drill hole. At this time, the power head is restarted.

[0026] The present invention provides a power tower foundation pile drilling device and a soil discharge method thereof, which have the following advantages compared with the prior art: the gantry of the embodiment of the present invention is slidably installed on the base, and the sliding power of the gantry is provided by a plurality of mobile power sources. The gantry can slide on the base. When cleaning the debris remaining on the drill bit, the on-site personnel can move the drill bit to an area away from the drill hole and the equipment base for cleaning, thereby solving the problem in the prior art that when the drill bit is cleaning the debris, the soil debris and rock chips are easily dropped into the pile hole or the equipment base, which reduces the working efficiency of the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 2 is an overall schematic diagram of a power tower foundation pile drilling device according to an embodiment of the present invention;

[0028] Figure 2 2 is an overall schematic diagram of the gantry of the power tower foundation pile drilling equipment after movement according to an embodiment of the present invention;

[0029] Figure 3 The power tower foundation pile drilling equipment of the embodiment of the present invention is Figure 2 A partial enlarged view of point A;

[0030] Figure 4 Schematic diagram of a drill bit and a drill rod of a power tower foundation pile drilling device according to an embodiment of the present invention;

[0031] Figure 5 2. It is a schematic diagram of a gantry frame of a power tower foundation pile drilling device according to an embodiment of the present invention;

[0032] Figure 6 The power tower foundation pile drilling equipment of the embodiment of the present invention is Figure 5 A partial enlarged view of point B;

[0033] Figure 7 2 is a schematic diagram of the base of a power tower foundation pile drilling device according to an embodiment of the present invention;

[0034] Figure 8 2. It is a schematic diagram of the installation of a guide beam of a power tower foundation pile drilling device according to an embodiment of the present invention;

[0035] Figure 9 is a cross-sectional view of a power tower foundation pile drilling device at a position connected to a slide rail according to an embodiment of the present invention;

[0036] In the figure, 1. drill bit; 2. drill rod; 201. connector; 202. latch; 203. rod body; 3. gantry; 301. horizontal beam; 302. vertical beam; 303. guide beam; 3031. avoidance groove; 3032. mounting plate; 3033. sliding plate; 3034. connecting rail; 304. power head; 4. base; 401. guide rail; 402. mobile power source. DETAILED DESCRIPTION

[0037] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0039] In the description of the present invention, it should be understood that the terms "connected," "connected," "fixed," etc. used in the present invention should be interpreted broadly. For example, the terms may be fixedly connected, detachably connected, or integrated; may be mechanically connected or welded; may be directly connected or indirectly connected through an intermediate medium; may be internal communication between two elements or an interactive relationship between two elements, unless otherwise clearly defined. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] like Figures 1 to 9 As shown, a preferred embodiment of the present invention provides a power tower foundation pile drilling device, which includes: a drill bit 1, a drill rod 2, a gantry 3 and a base 4.

[0041] The base 4 is provided with a plurality of mobile power sources.

[0042] The gantry 3 includes a horizontal beam 301 and two vertical beams 302. The horizontal beam 301 is slidably installed between the two vertical beams 302. The angles between the horizontal beam 301 and the two vertical beams 302 are both 90 degrees. The sliding direction of the horizontal beam 301 is parallel to the length direction of the vertical beams 302. The moving power of the horizontal beam 301 in this direction is provided by the lifting hydraulic cylinder provided on the gantry 3. The vertical beams 302 are slidably installed on the base 4. The power output ends of the mobile power sources respectively push the two vertical beams 302. At the ends of the vertical beams 302, several of the mobile power sources are evenly distributed at the ends of the two vertical beams 302 to balance the thrust received by the vertical beams 302. The sliding direction of the vertical beams 302 is perpendicular to the length direction of the vertical beams 302 and the vertical beams 302 move closer to or away from the base 4 when sliding. The sliding of the vertical beams 302 means the sliding of the gantry 3. The sliding direction of the vertical beams 302 is the sliding direction of the gantry 3. The center of gravity of the gantry 3 is always located on the base 4 during the sliding process.

[0043] Several of the power heads 304 are fixedly installed on the beam 301, and the fixed ends of several of the power heads 304 are fixedly installed on the top surface of the beam 301. The power head 304 is the motor, the fixed end of the power head 304 is the motor body, and the power output end of the power head 304 is the motor shaft.

[0044] The drill rod 2 is detachably mounted on the bottom end surface of the horizontal beam 301 . The axis of the drill rod 2 is parallel to the length direction of the vertical beam 302 . The drill rod 2 is driven to rotate by the power output ends of the power heads 304 .

[0045] There is no further limitation on the number of power heads 304 here. When there is only one power head 304, the power output end of the power head 304 is plugged into the tail of the drill rod 2 to drive the drill rod 2 to rotate; when there are multiple power heads 304, several of the power heads 304 are arranged in a circular array around the axis of the drill rod 2 around the drill rod 2, and the power output ends of several of the power heads 304 are matched with the tail of the drill rod 2 through gears to drive the group to rotate. At this time, the rotation directions of the power output ends of several of the power heads 304 are all in the same rotation direction.

[0046] The drill bit 1, spiral blades, main supporting rod and alloy teeth, the bottom end surface of the main supporting rod is provided with a portion for crushing soil, the top end surface of the main supporting rod is provided with a connecting portion for connecting to the drill rod 2, the side wall of the main supporting rod is provided with spiral blades along the radial direction of the main supporting rod, the feed end and the contact position of the spiral blades with the bottom of the borehole are both provided with alloy teeth, the drill bit 1 is fixedly installed on the bottom end of the drill rod 2 through the connecting portion and is driven to rotate by the drill rod 2, the drill bit 1 rotates and crushes the soil to drill a borehole.

[0047] Based on this, when the drilling equipment needs to discharge soil, the horizontal beam 301 moves up to lift the drill rod 2 and the drill bit 1 out of the borehole, and several of the moving components work simultaneously and push the vertical beam 302 to slide on the base 4 so that the gantry 3 is away from the borehole and the equipment base 4, so that the drilling equipment can clean the drill bit 1 at a position away from the borehole and the equipment base 4, thereby solving the problem in the prior art that when the drill bit 1 is cleaning the slag, the soil residue and rock chips are easily dropped into the pile hole or the equipment base 4, which reduces the working efficiency of the drill bit 1.

[0048] Furthermore, if Figures 1 to 9 As shown, guide beams 303 are fixedly mounted on the bottom end surfaces of the two vertical beams 302 of the gantry 3 .

[0049] A plurality of guide rails 401 are respectively provided on the top surface of the base 4 . The guiding direction of the guide rails 401 is parallel to the sliding direction of the vertical beam 302 , and one of the groove walls of the guide rail 401 faces the base 4 .

[0050] A sliding plate 3033 is provided between the bottom end surface of the guide beam 303 and the base 4, the top end surface of the sliding plate 3033 is in contact with the bottom end surface of the guide beam 303, the bottom end surface of the sliding plate 3033 is in contact with the base 4, and a connecting rail 3034 is provided on the side of the sliding plate 3033 close to the guide rail 401, and the length direction of the sliding plate 3033 is parallel to the length direction of the connecting rail 3034.

[0051] The length direction of the connecting slide rail 3034 is consistent with the guiding direction of the guide slide rail 401. The connecting slide rail 3034 is used to cooperate with the installed groove wall toward the sliding plate 3033. The connecting slide rail 3034 is slidingly connected to the guide slide rail 401. At this time, one of the groove walls of the guide slide rail 401 is located above the connecting slide rail 3034 to limit the vertical displacement of the sliding plate 3033 when sliding, thereby making the gantry 3 slide more smoothly on the base 4.

[0052] Furthermore, if Figures 1 to 9 As shown, any guide beam 303 is provided with an avoidance groove 3031 .

[0053] The length direction of the guide beam 303 is parallel to the sliding direction of the vertical beam 302 .

[0054] The two ends of the avoidance groove 3031 respectively pass through the two end faces of the guide beam 303 located in the sliding direction of the gantry 3, the axis of the avoidance groove 3031 is parallel to the length direction of the guide beam 303, and a mounting plate 3032 is provided at the end of the avoidance groove 3031 away from the mobile power source 402.

[0055] The power output end of the mobile power source 402 extends from one end of the avoidance groove 3031 and extends from the other end of the avoidance groove 3031. The center opening of the mounting plate 3032 is used to avoid the mobile power source 402 extending from the center position of the mounting plate 3032. Two opposite fixing plates are provided on the end face of the mounting plate 3032 away from the avoidance groove 3031. Both fixing plates are provided with screw holes and the screw holes are oriented oppositely. The mobile power source 402 is fixedly connected to the guide beam 303 through the fixing plates on the mounting plate 3032. Since the mass of the overall structure of the gantry 3 is large, the inertia generated when it moves is also large. The setting of the avoidance groove 3031 enables the mobile power source 402 to be pulled from the front of the guide beam 303 to avoid the gantry beam sliding out of the guide slide rail 401 due to pushing the gantry beam, thereby making the movement process of the gantry beam with a larger mass more controllable.

[0056] Furthermore, if Figures 1 to 9 As shown, the guide rail 401 is evenly divided into several sections along the sliding direction of the gantry 3, and the length of the connecting rail 3034 is greater than the distance between any two adjacent sections of the guide rail 401. At this time, the two ends of the connecting rail 3034 are flush with the two ends of the guide beam 303, that is, the connecting rail 3034 is of the same length as the guide beam 303. The guide rail 401 is arranged in sections, which saves the manufacturing materials of the corresponding rails and avoids the maintenance difficulties that may be caused by the excessive length of the rails.

[0057] The number of segments of the guide rail 401 is not further limited here, and the guide rail 401 can be designed according to the length that the gantry 3 needs to slide and the overall length of the base 4 equipment.

[0058] Furthermore, if Figures 1 to 8 As shown, the mobile power source 402 is a driving hydraulic cylinder, and the extension and retraction direction of the piston of the driving hydraulic cylinder is parallel to the sliding direction of the gantry 3, that is, the fixed end of the mobile power source 402 is the cylinder body of the driving hydraulic cylinder, and the power output end of the mobile power source 402 is the piston of the driving hydraulic cylinder. The cylinder body of the driving hydraulic cylinder is fixedly connected to the base 4 and the cylinder body of the driving hydraulic cylinder is parallel to the sliding direction of the gantry 3. The liquid inlet and liquid outlet ends of the cylinder body of the driving hydraulic cylinder are both connected to the base 4, and the hydraulic action is provided by the base 4. The piston of the driving hydraulic cylinder passes through the avoidance groove 3031 and is fixedly connected to the mounting plate 3032.

[0059] Furthermore, if Figure 4As shown, the drill rod 2 is a multi-stage drill rod. The drill rod 2 at any pole includes a connector 201 and a rod body 203. The two adjacent stages of the drill rod 2 are detachably connected together by a pin 202. The front end of the rod body 203 of the drill rod 2 at any pole is provided with a connector 201 with a pin hole. The diameter of the connector 201 is larger than the diameter of the drill rod 2. The drill rod 2 at any pole is also provided with a pin hole at the corresponding position after being connected to the connector 201 of the next stage drill rod 2. The pin 202 simultaneously passes through the pin holes of the two adjacent drill rods 2 located at the connector 201 and the rod body 203 to connect the corresponding drill rods 2, so that the drill rod 2 of the drilling equipment can be disassembled during transportation, thereby ensuring the drilling effect of the drill rod 2 for drilling holes of different depths while facilitating transportation to complex environments such as mountainous areas for practical use.

[0060] Furthermore, a card plate is slidingly provided on the base 4, and the sliding direction of the card plate is perpendicular to the axis of the drill rod 2. The sliding of the card plate can be completed manually by on-site personnel, or it can be slidably installed on the gantry 3; the distance between the top surface of the card plate and the crossbeam 301 of the gantry 3 is greater than the length of any level of drill rod 2, and the contact surface of the card plate with the drill rod 2 can fit with the rod body 203 of the drill rod 2 when sliding. Since any drill rod 2 is provided with a connecting head 201 and the diameter of the connecting head 201 is greater than the diameter of the drill rod 2, when the card plate slides to contact the rod body 203 of the drill rod 2, the connecting head 201 will be stuck by the card plate and cannot be lowered, so that the card plate can clamp the connection position of two adjacent drill rods 2, so that the drilling equipment can disassemble and assemble the drill rod 2 step by step on site.

[0061] A preferred embodiment of the present invention further provides a method for discharging soil from a power tower foundation pile, including a power tower foundation pile drilling device. The method comprises:

[0062] In the step of pulling out the drill, the power head 304 stops working, the crossbeam 301 moves upward, and the drill rod 2 drives the drill bit 1 to be lifted out of the drill hole.

[0063] In the soil discharge step, the mobile power source 402 pushes the vertical beam 302 to slide the gantry 3, and the drill bit 1 follows the gantry 3 to slide to a position away from the drill hole. At this time, the power head 304 is restarted.

[0064] The working process of the present invention is as follows: first, the power head 304 stops working, and the crossbeam 301 of the gantry 3 moves upward to lift the drill rod 2 and the drill bit 1 out of the working surface. According to the on-site needs, it is determined whether it is necessary to use the clamping plate and the latch 202 to disassemble the multi-stage drill rod 2. Then, the gantry 3 is pushed to slide by the mobile power source 402, so that the gantry 3 slides along the guide direction of the guide rail 401 to a position away from the drill hole and the equipment base 4. Finally, the power head 304 is restarted to rotate the drill bit 1, thereby clearing out the soil debris and rock chips remaining on the drill bit 1, and completing the soil discharge operation of the drill bit 1.

[0065] In summary, the drilling equipment is achieved by sliding the gantry 3 on which the drill rod 2 and the drill bit 1 are installed on the base 4, and using a mobile power source 402 to provide it with mobile power, so that the drill bit 1 of the drilling equipment can be moved to a position away from the borehole and the equipment base 4 to discharge soil. In order to ensure stability during movement, the present drilling equipment is provided with a guide beam 303 at the bottom end of the vertical beam 302 of the gantry 3. The guide beam 303 cooperates with the guide slide rail 401 on the base 4 to stably move the gantry 3 with a larger mass and avoid damage to the equipment due to shaking inertia; by setting the drill rod 2 as a multi-stage drill rod 2, the difficulty of transporting the drilling rig to complex terrain conditions is reduced, so that the present drilling equipment can adapt to the foundation pile drilling work of the power tower, thereby solving the problem in the prior art that when the drill bit 1 is cleaning slag, soil debris and rock chips easily fall into the pile hole or the equipment base 4, thereby reducing the working efficiency of the drill bit 1.

[0066] It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information. In addition, the orientations or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0067] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A power tower foundation pile drilling equipment, characterized in that: The drilling equipment comprises: A base, wherein a plurality of mobile power sources are provided on the base; Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion. The sliding rail is slidably connected to the guide rail; an avoidance groove is provided on any of the guide beams; the length direction of the guide beam is parallel to the sliding direction of the vertical beam; both ends of the avoidance groove respectively pass through the two end faces of the guide beam in the sliding direction of the vertical beam, the axis of the avoidance groove is parallel to the length direction of the guide beam, and a mounting plate is provided at one end of the avoidance groove away from the mobile power source; the mobile power source is provided with two, and the two mobile power sources are respectively located at the ends of the two vertical beams, the power output end of the mobile power source extends from one end of the avoidance groove and extends from the other end of the avoidance groove, and the mobile power source is fixedly connected to the guide beam through the mounting plate; the guide rail is evenly divided into several sections along the sliding direction of the vertical beam, and the length of the connecting slide rail is greater than the spacing between any two adjacent guide slide rails; A plurality of power heads, wherein the plurality of power heads are fixedly mounted on the crossbeam; A drill rod, which is detachably mounted on the bottom end surface of the horizontal beam, with its axis parallel to the length direction of the vertical beam, and is driven to rotate by the power output ends of several power heads; A drill bit is fixedly mounted on the bottom end of the drill rod.

2. The power tower foundation pile drilling equipment according to claim 1, characterized in that: The moving power source is a driving hydraulic cylinder, and the extension and contraction direction of the piston of the driving hydraulic cylinder is parallel to the sliding direction of the vertical beam.

3. The power tower foundation pile drilling equipment according to claim 1, characterized in that: The drill rod is a multi-stage drill rod, and the multi-stage drill rods are detachably connected together by pins.

4. The power tower foundation pile drilling equipment according to claim 3, characterized in that: A card plate is slidably provided on the base, the sliding direction of the card plate is perpendicular to the axis of the drill rod, the distance between the top surface of the card plate and the crossbeam is greater than the length of any level of drill rod, and the card plate clamps the connection position of two adjacent drill rods.

5. A method for discharging soil from foundation piles of power towers, characterized in that: Using the power tower foundation pile drilling equipment according to claims 1-4, the soil discharge method includes: In the drilling step, the power head stops working, and the crossbeam moves upward to drive the drill bit to be lifted out of the drill hole; In the soil discharge step, the mobile power source pushes the vertical beam to slide, and the drill bit follows the vertical beam to slide to a position away from the drill hole. At this time, the power head is restarted.

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