Pile foundation axis horizontal laser positioning device for bottom of drill bit of rotary drilling rig

Abstract

The utility model relates to a pile foundation axis horizontal laser positioning device for the bottom of a drill bit of a rotary drilling rig, and relates to the technical field of engineering pile construction, the pile foundation axis horizontal laser positioning device comprises a mounting seat and a laser transmitter, and the mounting seat is detachably connected with a rotary drilling rig through a mounting unit; the laser transmitter is detachably connected with the mounting seat through an adjusting unit, the mounting unit can adjust the position of the laser transmitter at the axis position of the rotary drilling rig, and the adjusting unit is used for adjusting the laser transmitter to be at the horizontal position. The rotary excavating drill can drive the laser transmitter to be aligned with the axis of the pile foundation in the vertical direction. Multiple times of positioning are not needed, positioning is conducted by means of laser, and the horizontal positioning efficiency and precision of the pile foundation axis are high.

Description

Technical Field

[0001] The present application relates to the technical field of engineering pile construction, and in particular to a horizontal laser positioning device for the pile foundation axis at the bottom of a rotary drilling rig drill bit. Background Art

[0002] In engineering construction, it is necessary to use a rotary drilling rig to drill the pile foundation. The hole opening point needs to be located in advance before rotary drilling. Therefore, the accuracy of hole opening positioning will directly affect the quality and accuracy of subsequent rotary drilling. Especially for large-diameter piles, the positioning error of the hole opening is large before rotary drilling, and it is difficult to accurately control the center of the drill bit, and it is easy to deviate from the target hole center. Therefore, it is particularly critical to accurately locate the hole opening before rotary drilling.

[0003] The existing method of pile foundation axis positioning adopts the method of wire positioning, but this method requires a lot of time and repeated adjustments to find the position of the pile foundation axis, which not only wastes a lot of time and multiple working hours, but also because it basically relies on visual judgment of personnel, the positioning of the axis is prone to large deviation, resulting in low accuracy and low efficiency of pile foundation axis positioning. Utility Model Content

[0004] In order to improve the problem of low accuracy and low efficiency in pile foundation axis positioning caused by the use of a wire positioning method, the present application provides a pile foundation axis horizontal laser positioning device for the bottom of a rotary drilling rig drill bit.

[0005] The present application provides a horizontal laser positioning device for the pile foundation axis at the bottom of the rotary drilling rig drill bit, which adopts the following technical solution:

[0006] A horizontal laser positioning device for the axis of a pile foundation at the bottom of a rotary drilling rig drill bit comprises a mounting seat and a laser transmitter, wherein the mounting seat and the rotary drilling rig are detachably connected via a mounting unit, and the laser transmitter and the mounting seat are detachably connected via an adjustment unit, wherein the mounting unit can adjust the laser transmitter to be located at the axis position of the rotary drilling rig, and the adjustment unit is used to adjust the laser transmitter to a horizontal position, and the rotary drilling rig can drive the laser transmitter to be aligned with the axis of the pile foundation in a vertical direction.

[0007] By adopting the above technical scheme, when positioning the rotary drill and the pile foundation, the mounting seat is first installed on the rotary drill through the mounting unit so that the mounting seat is located at the axis center of the rotary drill, and then the laser transmitter is installed on the mounting seat through the adjustment unit, and then the laser transmitter is adjusted to a horizontal position through the adjustment unit, and then the position of the rotary drill is adjusted by moving the drill bit, adjusting the position of the rotary drill, etc., so that the vertical light beam of the laser transmitter is projected onto the determined axis center of the pile position, and the positioning of the rotary drill and the axis center of the pile position is completed. This scheme does not require multiple positioning and relies on laser positioning, so that the horizontal positioning of the axis center of the pile foundation is efficient and accurate.

[0008] In a specific feasible implementation scheme, the mounting unit comprises a plurality of groups of telescopic rods, each group of the telescopic rods being arranged on the mounting seat along the radial direction of the rotary drilling rig, and the extension lines of the plurality of groups of telescopic rods along their own telescopic directions can intersect at a point, which is located on the axis of the rotary drilling rig, and the mounting seat is provided with a driving member for driving the telescopic rods to telescope simultaneously.

[0009] By adopting the above technical solution, when installing the mounting seat, the mounting seat together with the telescopic rod is inserted into the rotary drill, and then the telescopic rod is driven to extend simultaneously by the driving member, and then the telescopic rod is pressed against the inner wall of the rotary drill to complete the installation of the mounting seat, thereby improving the convenience of disassembly and assembly of the mounting seat and the rotary drill.

[0010] In a specific possible implementation mode, the telescopic rod includes a rotating screw and an extension rod, the extension rod is slidably arranged on the mounting seat, the rotating screw is rotatably arranged on the mounting seat, and the rotating screw is inserted into the extension rod and threadedly connected.

[0011] By adopting the above technical solution, when installing the mounting seat, the screw rod is rotated to drive the extension rod to extend out of the mounting seat and press against the inner wall of the rotary drill to complete the installation of the mounting seat and improve the convenience of installing the mounting seat.

[0012] In a specific possible implementation scheme, the driving member includes a first bevel gear and a second bevel gear, the first bevel gear corresponds to the rotating screw one by one and is coaxially fixed on the rotating screw, the second bevel gear is rotatably set on the mounting seat, and multiple first bevel gears are meshed with the second bevel gear.

[0013] By adopting the above technical solution, when the rotating screw is driven, the second bevel gear is rotated, and the second bevel gear drives multiple first bevel gears to rotate simultaneously, and the first bevel gear drives the rotating screw to rotate, so that the extension distance of each telescopic rod is the same, so that the mounting base can be quickly installed on the axis of the rotary drill.

[0014] In a specific possible implementation manner, a worm wheel is coaxially fixedly provided on the rotating screw, and a worm meshing with the worm wheel is rotatably provided on the mounting seat.

[0015] By adopting the above technical solution, when driving the second bevel gear, the operator rotates the worm, the worm drives the worm wheel to rotate, the worm drives the first bevel gear to rotate by rotating the screw, the first bevel gear drives the remaining first bevel gears to rotate through the second bevel gear, and the transmission of the worm wheel and the worm improves the self-locking stability of the extension of the telescopic rod, which facilitates the driving of the second bevel gear.

[0016] In a specific possible implementation mode, the extension rod is provided with a spherical surface capable of abutting against the rotary drill.

[0017] By adopting the above technical solution, the extension rod is tightly fixed to the inner wall of the rotary drill through the spherical surface, and the extension rod fits more closely to the inner wall of the rotary drill, so that the mounting seat can be more accurately installed at the axial center position of the rotary drill.

[0018] In a specific possible implementation scheme, the adjustment unit includes a universal rotating hose, one end of which is fixed to the mounting seat, and the other end is fixed to the laser emitter, and the universal rotating hose can adjust the laser emitter to be horizontal.

[0019] By adopting the above technical solution, when the laser transmitter is installed on the mounting seat, the operator adjusts the laser transmitter to a horizontal position by rotating the universal rotating hose, thereby improving the convenience of horizontal adjustment of the laser transmitter.

[0020] In a specific possible implementation mode, a magnetic fixing sleeve is fixedly provided on the universal rotating hose, a mounting portion is provided on the mounting seat, and the magnetic fixing sleeve can be sleeved on the mounting portion and fix the mounting portion by adsorption.

[0021] By adopting the above technical solution, when installing the laser emitter and the mounting seat, the magnetic fixing sleeve on the universal rotating hose is put on the mounting part, and the magnetic fixing sleeve is adsorbed on the mounting part to complete the installation of the laser emitter, thereby improving the convenience of disassembly and assembly of the laser emitter.

[0022] In a specific possible implementation manner, the laser transmitter is provided with a level adjustment ruler.

[0023] By adopting the above technical solution, when adjusting the level of the laser emitter, observe the horizontal adjustment ruler above the laser emitter. When the bubble of the horizontal adjustment ruler is centered, it proves that the light beam emitted by the laser emitter at this moment is in a vertical direction, thereby improving the convenience of adjusting the laser emitter.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. When positioning the rotary drill and the pile foundation, first install the mounting seat on the rotary drill through the mounting unit so that the mounting seat is located at the axis of the rotary drill, then install the laser transmitter on the mounting seat through the adjustment unit, and then adjust the laser transmitter to a horizontal position through the adjustment unit, and then adjust the position of the rotary drill by moving the drill bit, adjusting the position of the rotary drill, etc., so that the vertical beam of the laser transmitter is projected onto the determined axis of the pile position, and the positioning of the rotary drill and the axis of the pile position is completed, without the need for multiple positioning, and relying on laser positioning, so that the horizontal positioning of the axis of the pile foundation is efficient and accurate;

[0026] 2. When installing the laser transmitter, the worm is rotated to drive multiple rotating screws to rotate simultaneously, and the multiple rotating screws drive the extension rods to extend and be fixed tightly on the rotary drill at the same time, and the extension distances are equal, so that the laser transmitter can be quickly installed on the axis of the rotary drill; through the extension of the extension rod, the laser transmitter can be quickly and accurately installed on rotary drills of different calibers, and is suitable for the positioning of the axis of pile foundations in various environments such as the ground, underground pits, and bottoms of holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a horizontal laser positioning device for the axis of a pile foundation at the bottom of a rotary drilling rig drill bit according to an embodiment of the present application.

[0028] Figure 2 It is a schematic diagram for showing the structure of the telescopic rod.

[0029] Figure 3 It is a schematic diagram for showing the structure of a level adjustment ruler.

[0030] Figure 4 yes Figure 2 Enlarged view of part A in the middle.

[0031] Explanation of the reference numerals in the accompanying drawings: 1. Mounting seat; 2. Laser transmitter; 3. Rotary drill; 31. Loading hopper; 32. Punch and grab cone drill bit; 4. Mounting unit; 41. Telescopic rod; 411. Rotating screw; 412. Extension rod; 42. Support portion; 43. Adjustment chamber; 44. Driving member; 441. First bevel gear; 442. Second bevel gear; 443. Worm gear; 444. Worm; 45. Spherical surface; 5. Adjustment unit; 51. Universal rotating hose; 52. Magnetic fixing sleeve; 53. Mounting portion; 61. Horizontal adjustment ruler; 62. Switch. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The embodiment of the present application discloses a horizontal laser positioning device for the axis of a pile foundation at the bottom of a drill bit of a rotary drilling rig.

[0034] Reference Figure 1 , Figure 2 A horizontal laser positioning device for the axis of a pile foundation at the bottom of a rotary drilling rig drill bit includes a mounting seat 1 and a laser emitter 2. The rotary drilling rig 3 in this embodiment includes a loading hopper 31 and a grab cone drill bit 32. The loading hopper 31 is cylindrical, and the grab cone drill bit 32 is arranged along the bottom end wall of the loading hopper 31. The top of the loading hopper 31 is fixedly connected to the drill rod through a pin shaft. The mounting seat 1 can be inserted into the loading hopper 31 and is detachably connected to the inner side wall of the loading hopper 31 through a mounting unit 4. The mounting seat 1 is a cylindrical block. When installed on the rotary hopper, the axis of the mounting seat 1 is colinear with the axis of the loading hopper 31. The laser emitter 2 is detachably mounted on the mounting seat 1 through an adjustment unit 5. The adjustment unit 5 adjusts the laser emitter 2 to a horizontal position.

[0035] When positioning the rotary drill 3 and the pile foundation, firstly, the mounting seat 1 is mounted to the end of the charging hopper 31 of the rotary drill 3 through the mounting unit 4, so that the mounting seat 1 is located at the axial center position of the rotary drill 3, and then the laser emitter 2 is mounted on the mounting seat 1 through the adjusting unit 5, and then the laser emitter 2 is adjusted to a horizontal position through the adjusting unit 5, and then the position of the rotary drill 3 is adjusted by moving the drill bit, adjusting the position of the rotary drill 3, etc., so that the vertical light beam of the laser emitter 2 is projected onto the determined axis of the pile position, and the positioning of the rotary drill 3 and the axis of the pile position is completed. This solution does not require multiple positioning and relies on laser positioning, so that the horizontal positioning of the axis of the pile foundation is efficient and accurate.

[0036] Reference Figure 2 , Figure 3 The mounting unit 4 in this embodiment includes a plurality of telescopic rods 41. The number of telescopic rods 41 in this embodiment is four. Each telescopic rod 41 includes a rotating screw 411 and an extension rod 412. The mounting seat 1 protrudes outward to form a support portion 42. The number of the support portions 42 is four. The four support portions 42 are arranged along the circumference of the mounting seat 1 at intervals of 90°. The extension rods 412 correspond to the support portions 42 one by one. The cross section of the extension rods 412 is rectangular. The extension rods 412 are inserted into the support portions 42 along the radial direction of the mounting seat 1 and are slidably connected to the support portions 42. An adjustment cavity 43 is provided in the mounting seat 1. Each rotating screw 411 is arranged along the radial direction of the mounting seat 1. One end of the rotating screw 411 is inserted into the extension rod 412 and is threadedly connected to the extension rod 412. The other end extends into the adjustment cavity 43 and is rotatably connected to the mounting seat 1. The extension rod 412 can be driven to extend and retract by rotating the screw 411.

[0037] Reference Figure 2 , Figure 4 The mounting seat 1 is provided with a driving member 44. The driving member 44 in this embodiment includes a first bevel gear 441 and a second bevel gear 442. The first bevel gear 441 corresponds to the rotating screw 411 one by one and is coaxially fixedly arranged at one end of the rotating screw 411 extending into the adjustment cavity 43. The second bevel gear 442 is arranged on the bottom wall of the adjustment cavity 43 and is rotatably connected to the mounting seat 1 through a gear shaft. The four first bevel gears 441 are all meshed with the second bevel gears 442. Rotating the second bevel gear 442 can simultaneously rotate multiple first bevel gears 441. The first bevel gear 441 drives the rotating screw 411 to rotate, so that each telescopic rod 41 is extended to the same distance, so that the mounting seat 1 can be quickly installed on the axis of the rotary drill 3.

[0038] Reference Figure 2 , Figure 4 A worm gear 443 is coaxially fixed on one of the rotating screw rods 411, a worm 444 meshing with the worm gear 443 is provided in the adjusting chamber 43, and the worm 444 is rotationally connected with the mounting seat 1 and extends out of the mounting seat 1. When driving the second bevel gear 442, the operator rotates the worm 444, and then the worm 444 drives the rotating screw rod 411 to rotate through the worm gear 443, the rotating screw rod 411 drives the second bevel gear 442 to rotate through a first bevel gear 441, and the second bevel gear 442 drives the remaining first bevel gears 441 to rotate, and the transmission of the worm gear 443 and the worm 444 realizes the self-locking stability of the extension of the telescopic rod 41, and improves the convenience of installing the mounting seat 1.

[0039] Reference Figure 2 , Figure 3 The extension rod 412 is provided with a spherical surface 45 at one end away from the mounting seat 1, and the extension rod 412 is fixed tightly against the inner wall of the hopper 31 through the spherical surface 45. The extension rod 412 is fixed tightly against the inner wall of the rotary drill 3 through the spherical surface 45, and the extension rod 412 fits the inner wall of the rotary drill 3 more closely, so that the mounting seat 1 can be installed more accurately at the axis center position of the rotary drill 3.

[0040] Reference Figure 2 , Figure 3The adjustment unit 5 in this embodiment includes a universal rotating hose 51, one end of which is fixedly connected to the top of the laser emitter 2, and the other end is fixedly connected to a magnetic fixing sleeve 52. The universal rotating hose 51 has a certain strength and needs to be adjusted manually. There will be no deviation when the drilling rig rotates freely. The bottom of the mounting seat 1 forms a mounting portion 53. The magnetic fixing sleeve 52 is magnetic and can absorb metals such as iron, cobalt, and nickel. The mounting portion 53 is made of iron metal material. The magnetic fixing sleeve 52 can be sleeved on the mounting portion 53 and adsorbed and fixed on the mounting portion 53. The laser emitter 2 is conical, and the laser beam is emitted from the tip of the laser emitter 2. The top of the laser emitter 2 has a switch 62, which can turn the laser emitter 2 on and off. The laser emitter 2 is provided with a horizontal adjustment ruler 61. The position of the bubble in the horizontal adjustment ruler 61 can be used to determine whether the laser emitter 2 is in a horizontal position.

[0041] After the installation of the mounting base 1 is completed, the magnetic fixing sleeve 52 is put on the mounting part 53, and the magnetic fixing sleeve 52 adsorbs and fixes the mounting part 53, completing the installation of the laser emitter 2 and improving the convenience of disassembly and assembly of the laser emitter 2. Then turn on the laser emitter 2, and then manually adjust the universal rotating hose 51, observe the horizontal adjustment ruler 61 above the laser emitter 2, and when the bubble of the horizontal adjustment ruler 61 is centered, it proves that the light beam emitted by the laser emitter 2 at this moment is in the vertical direction, thereby improving the convenience of horizontal adjustment of the laser emitter 2. At this moment, by moving the drill bit, adjusting the position of the rotary drill 3, etc., the vertical light beam is shot onto the determined pile position axis, completing the positioning of the rotary drill 3 and the pile position axis, and then the laser positioning device is removed, and drilling is started for drilling construction.

[0042] The implementation principle of the pile foundation axis horizontal laser positioning device for the bottom of the drill bit of a rotary drilling rig in the embodiment of the present application is as follows: when positioning the rotary drilling drill 3 and the pile foundation, first insert the mounting seat 1 into the charging hopper 31, and then rotate the worm 444, the worm 444 drives the rotating screw 411 to rotate through the worm gear 443, the rotating screw 411 drives the remaining rotating screw 411 to rotate together through the first bevel gear 441 and the second bevel gear 442, the rotating screw 411 drives the extension rod 412 to move toward the inner wall of the charging hopper 31, and at the same time, it is tightly fixed on the inner wall of the charging hopper 31, and then the magnetic fixing sleeve 52 is fixed. It is put on the mounting part 53, and the magnetic fixing sleeve 52 adsorbs and fixes the mounting part 53, then the laser emitter 2 is turned on, and the universal rotating hose 51 is manually adjusted. When the bubble in the horizontal adjustment ruler 61 is centered, the light beam emitted by the laser emitter 2 is in the vertical direction, and then the position of the rotary drill 3 is adjusted by moving the drill bit, adjusting the position of the rotary drill 3, etc., so that the vertical light beam of the laser emitter 2 is projected onto the determined pile position axis, and the positioning of the rotary drill 3 and the pile position axis is completed. This solution does not require multiple positioning and relies on laser positioning, so that the horizontal positioning of the pile foundation axis is efficient and accurate.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A horizontal laser positioning device for the pile foundation axis at the bottom of the drill bit of a rotary drilling rig, Features: The invention comprises a mounting seat (1) and a laser emitter (2), wherein the mounting seat (1) and a rotary drill (3) are detachably connected via a mounting unit (4), and the laser emitter (2) and the mounting seat (1) are detachably connected via an adjustment unit (5), wherein the mounting unit (4) can adjust the laser emitter (2) to be located at the axis center of the rotary drill (3), and the adjustment unit (5) is used to adjust the laser emitter (2) to be placed in a horizontal position, and the rotary drill (3) can drive the laser emitter (2) to be aligned with the axis center of the pile foundation in the vertical direction.

2. The horizontal laser positioning device for the pile foundation axis at the bottom of the rotary drilling rig drill bit according to claim 1, Features: The mounting unit (4) comprises a plurality of groups of telescopic rods (41), each group of the telescopic rods (41) being arranged on the mounting seat (1) along the radial direction of the rotary drilling drill (3), and the extension lines of the plurality of groups of telescopic rods (41) along their own telescopic directions can intersect at a point, which is located on the axis of the rotary drilling drill (3), and a driving member (44) for driving the telescopic rods (41) to telescope simultaneously is provided on the mounting seat (1).

3. The horizontal laser positioning device for the pile foundation axis at the bottom of the rotary drilling rig drill bit according to claim 2, Features: The telescopic rod (41) comprises a rotating screw rod (411) and an extension rod (412); the extension rod (412) is slidably arranged on the mounting seat (1); the rotating screw rod (411) is rotationally arranged on the mounting seat (1); the rotating screw rod (411) is inserted into the extension rod (412) and is threadedly connected.

4. The horizontal laser positioning device for the pile foundation axis center at the bottom of the drill bit of a rotary drilling rig according to claim 3, Features: The driving member (44) comprises a first bevel gear (441) and a second bevel gear (442); the first bevel gear (441) corresponds to the rotating screw (411) one by one and is coaxially fixed on the rotating screw (411); the second bevel gear (442) is rotatably arranged on the mounting seat (1); and a plurality of the first bevel gears (441) are all meshed with the second bevel gear (442).

5. The horizontal laser positioning device for the pile foundation axis center at the bottom of the rotary drilling rig drill bit according to claim 4, Features: A worm wheel (443) is coaxially fixedly disposed on the rotating screw rod (411), and a worm (444) meshing with the worm wheel (443) is rotatably disposed on the mounting seat (1).

6. The horizontal laser positioning device for the pile foundation axis center at the bottom of the rotary drilling rig drill bit according to claim 3, Features: The extension rod (412) is provided with a spherical surface (45) capable of tightly abutting against the rotary drill (3).

7. The horizontal laser positioning device for the pile foundation axis center at the bottom of the rotary drilling rig drill bit according to claim 1, Features: The adjustment unit (5) comprises a universal rotating hose (51), one end of which is fixedly arranged on the mounting seat (1), and the other end of which is fixedly arranged on the laser emitter (2), and the universal rotating hose (51) can adjust the laser emitter (2) to be placed horizontally.

8. The horizontal laser positioning device for the pile foundation axis center at the bottom of the rotary drilling rig drill bit according to claim 7, Features: The universal rotating hose (51) is fixedly provided with a magnetic fixing sleeve (52), the mounting seat (1) is provided with a mounting portion (53), and the magnetic fixing sleeve (52) can be sleeved on the mounting portion (53) and adsorbed to fix the mounting portion (53).

9. The horizontal laser positioning device for the pile foundation axis center at the bottom of the rotary drilling rig drill bit according to claim 1, Features: The laser emitter (2) is provided with a horizontal adjustment ruler (61).

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