Cast-in-situ bored pile drill bit deviation rectifying device and method

Abstract

The invention discloses a cast-in-situ bored pile drill bit deviation rectifying device and method.The device comprises a drill bit and a driving rod used for driving the drill bit to rotate, a fixing plate is fixedly arranged on the driving rod, a mounting cover is rotatably arranged on the fixing plate, a driving assembly used for driving the mounting cover to rotate is arranged on the fixing plate, and a first opening is formed in the mounting cover; a deviation rectifying block is arranged at the first opening in a sliding mode, a power assembly used for driving the deviation rectifying block to stretch into or stretch out of the first opening is arranged on the installation cover, the deviation rectifying block is attached to the inner wall of the first opening in a sliding mode, the power assembly drives the deviation rectifying block to move into the first opening so as to seal the first opening, and an inclination detection assembly is arranged on the driving rod. The inclination detection assembly detects the inclination angle and direction of the drill bit in real time, and the controller controls the action of the power assembly and the driving assembly according to the detection result, so that the deviation rectifying block accurately extends into or retreats from the first opening to be in contact with the inner wall of a hole, and accurate deviation rectifying of the drill bit is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of bored cast-in-place piles, and in particular to a bored cast-in-place pile drill bit deviation correction device and method. Background Art

[0002] Bored pile construction is an important part of building foundation engineering. Its quality and stability directly affect the overall safety and service life of the building. At present, bored pile construction mainly relies on drilling equipment, which forms holes in the stratum through rotating drill bits, and then injects concrete slurry to finally form stable foundation piles. However, in the actual construction process, due to the complex and changeable geological conditions, the drill bit often deviates from the predetermined trajectory during the drilling process, which not only increases the difficulty of construction, but also may lead to a decline in project quality and even cause safety hazards;

[0003] Existing technical means can only use a guide device to guide the drill bit route. The guide device is usually a guide blade or a guide sleeve installed on the drill bit to physically guide the drill bit along a predetermined trajectory. However, after the drill bit deviates, the deviation of the drill bit cannot be corrected. Summary of the invention

[0004] (I) Purpose of the invention

[0005] In order to solve the technical problems existing in the background technology, the present invention proposes a bored pile drill bit correction device and method, which detects the inclination angle and direction of the drill bit in real time through the tilt detection component, and the controller controls the action of the power component and the drive component according to the detection result, so that the correction block accurately extends into or exits the first opening and contacts with the inner wall of the hole, thereby realizing accurate correction of the drill bit. This design not only improves the accuracy of correction, but also shortens the correction time, effectively solves the problem of drill bit deviation under complex geological conditions, and improves the quality and safety of drilling.

[0006] (II) Technical solution

[0007] The present invention provides a bored pile drill bit correction device, comprising a drill bit and a driving rod for driving the drill bit to rotate, a fixing plate is fixedly provided on the driving rod, a mounting cover is rotatably provided on the fixing plate, a driving component for driving the mounting cover to rotate is provided on the fixing plate, a first opening is provided on the mounting cover, a correction block is slidably provided at the first opening, a power component for driving the correction block to extend into or out of the first opening is provided on the mounting cover, the correction block slides in contact with the inner wall of the first opening, the power component drives the correction block to move into the first opening to seal the first opening, and a tilt detection component is provided on the driving rod.

[0008] Preferably, the inclination detection assembly includes a first mounting ring, a second mounting ring and a sleeve, the first mounting ring and the second mounting ring are spaced apart from each other and are coaxially connected to the driving rod, the sleeve is vertically arranged between the first mounting ring and the second mounting ring, the first mounting ring is connected to the end of the first mounting ring facing the second mounting ring through a universal joint, the sleeve is opened at one end away from the first mounting ring, a laser transmitter is arranged in the sleeve, a laser receiver is arranged at the end of the second mounting ring facing the first mounting ring, the laser receiver is located directly below the sleeve, a controller is arranged on the fixing plate, the laser receiver is electrically connected to the controller, and the controller is electrically connected to the power assembly and the driving assembly.

[0009] Preferably, a weight block is coaxially sleeved on the outer circumferential surface of the sleeve.

[0010] Preferably, the power assembly includes a connecting plate, a mounting plate, a first motor and a threaded rod, two connecting plates are spaced apart on both sides of the first opening, the connecting plate is connected to the inner circumferential surface of the mounting cover, the mounting plate is connected to the two connecting plates, a first through hole is provided on the mounting plate, a first threaded blind hole corresponding to the first through hole is provided on the correction block, the threaded rod is rotatably disposed in the first through hole, one end of the threaded rod extends into the first threaded blind hole and is threadedly connected to the correction block, the other end of the threaded rod is coaxially connected to the output shaft of the first motor, the first motor is connected to one end of the mounting plate away from the correction block, and the first motor is electrically connected to the controller.

[0011] Preferably, the driving assembly includes a gear ring and a gear, the gear ring is coaxially arranged with the mounting cover and rotatably arranged on the fixed plate, the gear ring is connected to the inner circumferential surface of the mounting cover, the gear is rotatably arranged on the fixed plate, the gear is meshingly connected with the gear ring, a rotating unit for driving the gear to rotate is provided on the fixed plate, and the rotating unit is electrically connected to the controller.

[0012] Preferably, the rotating unit includes a first rotating shaft, a second motor and a second rotating shaft, the first rotating shaft is coaxially connected to the gear, the second rotating shaft is rotatably connected to the fixed plate through a mounting frame, the second rotating shaft is transmission-connected to the first rotating shaft, the second motor is connected to the fixed plate, the output shaft of the second motor is coaxially connected to the second rotating shaft, and the second motor is electrically connected to the controller.

[0013] Preferably, a first pulley is coaxially provided on the second rotating shaft, and a second pulley is coaxially provided on the first rotating shaft, and the first pulley is connected to the second pulley via a belt transmission.

[0014] A method for correcting a bored pile drill bit deviation, comprising the following steps:

[0015] The drilling operation is performed by the drill bit, and the drilling process is monitored in real time by the tilt detection component. The tilt angle and tilt direction of the drill bit are detected by the tilt detection component, the mounting cover is driven to rotate to a suitable position by the power component, and the correction block 10 is driven by the driving component to move out of the first opening and abut against the inner wall of the hole to block the movement direction of the drill bit for correction.

[0016] Compared with the prior art, the above technical solution of the present invention has the following beneficial technical effects:

[0017] In the present invention, the tilt detection component detects the tilt angle and direction of the drill bit in real time, and the controller controls the actions of the power component and the drive component according to the detection results, so that the correction block accurately extends into or exits the first opening and contacts the inner wall of the hole, thereby realizing accurate correction of the drill bit. This design not only improves the accuracy of correction, but also shortens the correction time, effectively solves the problem of drill bit deviation under complex geological conditions, and improves the quality and safety of drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention provides a structural schematic diagram of a bored pile drill bit deviation correction device and method.

[0019] Figure 2 The present invention provides a structural schematic diagram of an installation cover in a bored pile drill bit correction device and method.

[0020] Figure 3 The present invention provides a schematic structural diagram of a driving rod in a bored pile drill bit deviation correction device and method.

[0021] Figure 4 This is a structural schematic diagram of a partial enlargement of point A in a bored pile drill bit correction device and method proposed by the present invention.

[0022] Figure 5 This is a structural schematic diagram of a partial enlargement of position B in a bored pile drill bit correction device and method proposed by the present invention.

[0023] Figure numerals: 1. drill bit; 2. drive rod; 3. fixing plate; 4. mounting cover; 5. first mounting ring; 6. second mounting ring; 7. universal joint; 8. sleeve; 9. weight block; 10. correction block; 11. connecting plate; 12. mounting plate; 13. first motor; 14. threaded rod; 15. gear ring; 16. gear; 17. first rotating shaft; 18. second motor; 19. mounting frame; 20. second rotating shaft; 21. first pulley; 22. belt; 23. second pulley. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0025] In the description of the invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the 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 cannot be understood as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, welding, riveting, bonding, etc., or a detachable connection, threaded connection, key connection, pin connection, etc., or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Example 1

[0028] like Figure 1-5 As shown, an embodiment of the present application provides a bored pile drill bit correction device, a drill bit 1 and a driving rod 2 for driving the drill bit 1 to rotate, a fixing plate 3 is fixedly provided on the driving rod 2, a mounting cover 4 is rotatably provided on the fixing plate 3, a driving component for driving the mounting cover 4 to rotate is provided on the fixing plate 3, a first opening is provided on the mounting cover 4, a correction block 10 is slidably provided at the first opening, a power component for driving the correction block 10 to extend into or out of the first opening is provided on the mounting cover 4, the correction block 10 slides in contact with the inner wall of the first opening, the power component drives the correction block 10 to move into the first opening to seal the first opening, and a tilt detection component is provided on the driving rod 2.

[0029] In the present invention, the tilt detection component detects the tilt angle and direction of the drill bit 1 in real time, and the controller controls the actions of the power component and the drive component according to the detection results, so that the correction block 10 accurately extends into or exits the first opening and contacts the inner wall of the hole, thereby achieving accurate correction of the drill bit 1. This design not only improves the accuracy of correction, but also shortens the correction time, effectively solves the problem of drill bit 1 deviation under complex geological conditions, and improves the quality and safety of drilling.

[0030] In an optional embodiment, the tilt detection assembly includes a first mounting ring 5, a second mounting ring 6 and a sleeve 8, the first mounting ring 5 and the second mounting ring 6 are spaced apart from each other and are coaxially connected to the driving rod 2, the sleeve 8 is vertically arranged between the first mounting ring 5 and the second mounting ring 6, the first mounting ring 5 is connected to one end of the first mounting ring 5 toward the second mounting ring 6 through a universal shaft head 7, the sleeve 8 is opened at one end away from the first mounting ring 5, a laser transmitter is arranged in the sleeve 8, and a laser receiver is arranged at one end of the second mounting ring 6 toward the first mounting ring 5 The laser receiver is located directly below the sleeve 8, a controller is provided on the fixed plate 3, the laser receiver is electrically connected to the controller, the controller is electrically connected to the power assembly and the drive assembly, when the device as a whole tilts, the sleeve 8 will drive the laser generator located therein to remain horizontal under gravity, so that the receiving position of the laser emitted by the transmitter on the laser receiver will change, thereby transmitting the position of the laser received on the laser receiver to the controller, so that the controller controls the drive assembly and the power assembly to drive the mounting cover 4 to rotate and drive the correction block 10 to move to perform the correction operation.

[0031] In an optional embodiment, a weight block 9 is coaxially sleeved on the outer circumferential surface of the sleeve 8, and the weight block 9 can increase the overall weight of the sleeve 8, thereby making it more stable in a vertical state.

[0032] In an optional embodiment, the power assembly includes a connecting plate 11, a mounting plate 12, a first motor 13 and a threaded rod 14, two connecting plates 11 are spaced apart on both sides of the first opening, the connecting plate 11 is connected to the inner circumferential surface of the mounting cover 4, the mounting plate 12 is connected to the two connecting plates 11, a first through hole is provided on the mounting plate 12, a first threaded blind hole corresponding to the first through hole is provided on the correction block 10, the threaded rod 14 is rotatably arranged in the first through hole, one end of the threaded rod 14 extends into the first threaded blind hole and is threadedly connected to the correction block 10, and the other end of the threaded rod 14 is connected to the first motor The output shaft of the machine 13 is coaxially connected, the first motor 13 is connected to one end of the mounting plate 12 away from the correction block 10, and the first motor 13 is electrically connected to the controller. The number of circles of the first motor 13 can be effectively driven by the controller. The rotation of the first motor 13 drives the threaded rod 14 to rotate, thereby driving the correction block 10 threadedly connected thereto to move. Since the correction block 10 slides in contact with the inner wall of the first opening, the correction block 10 can be effectively limited through the first opening, thereby facilitating its movement, and the rotation of the first motor 13 controlled by the controller can effectively control the moving distance of the correction block 10, thereby better performing the correction operation.

[0033] In an optional embodiment, the driving assembly includes a gear ring 15 and a gear 16, wherein the gear ring 15 is coaxially arranged with the mounting cover 4 and rotatably arranged on the fixing plate 3, the gear ring 15 is connected to the inner circumference of the mounting cover 4, the gear 16 is rotatably arranged on the fixing plate 3, the gear 16 is meshedly connected with the gear ring 15, and a rotating unit for driving the gear 16 to rotate is provided on the fixing plate 3, and the rotating unit is electrically connected to the controller. The rotating unit drives the gear 16 to rotate by controlling the notification period, and the rotation of the gear 16 drives the gear ring 15 meshed therewith to rotate, thereby driving the mounting cover 4 to rotate, and after the mounting cover 4 is rotated to a suitable angle, the correction block 10 and the internal support of the hole are moved to perform the correction operation.

[0034] In an optional embodiment, the rotating unit includes a first rotating shaft 17, a second motor 18 and a second rotating shaft 20, the first rotating shaft 17 is coaxially connected to the gear 16, the second rotating shaft 20 is rotatably connected to the fixed plate 3 through a mounting bracket 19, the second rotating shaft 20 is transmission-connected to the first rotating shaft 17, the second motor 18 is connected to the fixed plate 3, the output shaft of the second motor 18 is coaxially connected to the second rotating shaft 20, the second motor 18 is electrically connected to the controller, and the second rotating shaft 20 is driven to rotate by the second motor 18, the second rotating shaft 20 rotates to drive the first rotating shaft 17 to rotate, thereby driving the gear 16 to rotate, and the second motor 18 is electrically connected to the controller, so that the controller can effectively control the angle of rotation of the second rotating shaft 20 driven by the second motor 18, thereby realizing the angle of rotation driven by the first rotating shaft 17 to drive the gear 16 to rotate.

[0035] In an optional embodiment, a first pulley 21 is coaxially provided on the second rotating shaft 20 , and a second pulley 23 is coaxially provided on the first rotating shaft 17 . The first pulley 21 and the second pulley 23 are connected to each other through a belt 22 .

[0036] Embodiment 2:

[0037] A method for correcting a bored pile drill bit deviation, comprising the following steps:

[0038] The drilling operation is performed by the drill bit, and the drilling process is monitored in real time by the tilt detection component. The tilt angle and tilt direction of the drill bit are detected by the tilt detection component, the mounting cover is driven to rotate to a suitable position by the power component, and the correction block 10 is driven by the driving component to move out of the first opening and abut against the inner wall of the hole to block the movement direction of the drill bit for correction.

[0039] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A bored pile drill bit correction device, characterized in that: The invention comprises a drill bit (1) and a driving rod (2) for driving the drill bit (1) to rotate, a fixing plate (3) being fixedly provided on the driving rod (2), a mounting cover (4) being rotatably provided on the fixing plate (3), a driving component for driving the mounting cover (4) to rotate being provided on the fixing plate (3), a first opening being provided on the mounting cover (4), a correction block (10) being slidably provided at the first opening, a power component for driving the correction block (10) to extend into or out of the first opening being provided on the mounting cover (4), the correction block (10) slidingly fitting with the inner wall of the first opening, the power component driving the correction block (10) to move into the first opening to seal the first opening, and a tilt detection component being provided on the driving rod (2).

2. A bored pile drill bit deviation correction device according to claim 1, characterized in that: The tilt detection assembly comprises a first mounting ring (5), a second mounting ring (6) and a sleeve (8); the first mounting ring (5) and the second mounting ring (6) are arranged at an interval up and down and are both coaxially connected to the driving rod (2); the sleeve (8) is vertically arranged between the first mounting ring (5) and the second mounting ring (6); the first mounting ring (5) is connected to one end of the first mounting ring (5) facing the second mounting ring (6) through a universal joint (7); the sleeve (8) is arranged with an opening at one end away from the first mounting ring (5); a laser transmitter is arranged in the sleeve (8); a laser receiver is arranged at one end of the second mounting ring (6) facing the first mounting ring (5); the laser receiver is located directly below the sleeve (8); a controller is arranged on the fixing plate (3); the laser receiver is electrically connected to the controller; and the controller is electrically connected to the power assembly and the driving assembly.

3. A bored pile drill bit deviation correction device according to claim 2, characterized in that: A weight block (9) is coaxially sleeved on the outer peripheral surface of the sleeve (8).

4. A bored pile drill bit deviation correction device according to claim 1, characterized in that: The power assembly comprises a connecting plate (11), a mounting plate (12), a first motor (13) and a threaded rod (14); two connecting plates (11) are spaced apart on both sides of the first opening; the connecting plate (11) is connected to the inner circumferential surface of the mounting cover (4); the mounting plate (12) is connected to the two connecting plates (11); a first through hole is provided on the mounting plate (12); a first threaded blind hole corresponding to the first through hole is provided on the deviation correcting block (10); the threaded rod (14) is rotatably arranged in the first through hole; one end of the threaded rod (14) extends into the first threaded blind hole and is threadedly connected to the deviation correcting block (10); the other end of the threaded rod (14) is coaxially connected to the output shaft of the first motor (13); the first motor (13) is connected to one end of the mounting plate (12) away from the deviation correcting block (10); and the first motor (13) is electrically connected to the controller.

5. The bored pile drill bit deviation correction device according to claim 1, characterized in that: The driving assembly comprises a gear ring (15) and a gear (16); the gear ring (15) is coaxially arranged with the mounting cover (4) and rotatably arranged on the fixed plate (3); the gear ring (15) is connected to the inner circumferential surface of the mounting cover (4); the gear (16) is rotatably arranged on the fixed plate (3); the gear (16) is meshingly connected with the gear ring (15); a rotating unit for driving the gear (16) to rotate is provided on the fixed plate (3); and the rotating unit is electrically connected to the controller.

6. A bored pile drill bit deviation correction device according to claim 5, characterized in that: The rotating unit comprises a first rotating shaft (17), a second motor (18) and a second rotating shaft (20); the first rotating shaft (17) is coaxially connected to the gear (16); the second rotating shaft (20) is rotationally connected to the fixed plate (3) via a mounting frame (19); the second rotating shaft (20) is transmission-connected to the first rotating shaft (17); the second motor (18) is connected to the fixed plate (3); the output shaft of the second motor (18) is coaxially connected to the second rotating shaft (20); and the second motor (18) is electrically connected to the controller.

7. A bored pile drill bit deviation correction device according to claim 6, characterized in that: A first belt pulley (21) is coaxially arranged on the second rotating shaft (20), and a second belt pulley (23) is coaxially arranged on the first rotating shaft (17). The first belt pulley (21) and the second belt pulley (23) are connected to each other through a belt (22).

8. A method for correcting the deviation of a bored pile drill bit using the device for correcting the deviation of a bored pile drill bit according to any one of claims 1 to 7, characterized in that: The specific steps include: The drilling operation is performed by the drill bit, and the drilling process is monitored in real time by the tilt detection component. The tilt angle and tilt direction of the drill bit are detected by the tilt detection component, the mounting cover is driven to rotate to a suitable position by the power component, and the correction block is driven by the driving component to move out of the first opening and abut against the inner wall of the hole to block the movement direction of the drill bit for correction.

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