An integrated automatic leveling full-casing down-the-hole drilling rig and its construction process

Abstract

The present invention discloses an integrated automatic leveling full-casing down-the-hole drilling rig and its construction process, including a base and a puller, a down-the-hole drill, a fast winch, a telescopic mast, a power system, a concrete pump system and an operation room integrated on the base. The down-the-hole drill adopts a high-speed drill barrel and a buttress device is arranged on the side to connect with the steel casing. The telescopic mast can be folded on the equipment mounting plate. Different equipment is reasonably integrated through staggered installation positions, so that a variety of cast-in-place pile construction equipment can be used on one machine at the same time, which is convenient for the transportation of equipment and the coordinated use of equipment. The base includes an integral upper chassis and a segmented lower chassis located on both sides, as well as a balancing sliding device and a balancing support device for adjusting the equipment. The adjustable segmented base realizes the height adjustment of the integrated base, making the use of the integrated base more convenient and having a wider range of applications.

Description

Technical Field

[0001] The invention relates to a full-casing down-the-hole drilling rig, in particular to an integrated automatic-leveling full-casing down-the-hole drilling rig equipment and a construction process thereof. Background Art

[0002] The cast-in-place pile of full casing construction is also called Benoit pile. It is a construction method developed and manufactured by the French Benoit company in the early 1950s. With research and development, the equipment and technology concerned with full casing construction have made great progress, and the products are constantly updated. Among the pile construction equipment on the market, the cast-in-place pile equipment mainly includes punching pile machine, rotary drilling pile machine and rotary pile machine. Among these equipment, rotary pile is more commonly used because of its convenience. However, the rotary pile machine in the current equipment market still has the problems of high equipment, poor safety and stability, and low vertical accuracy in construction and use. In addition, the existing rotary drilling machine has many auxiliary equipment required for pile formation during the construction process, which makes it difficult to adapt to the construction requirements of pile foundation engineering in complex strata. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a high-speed integrated automatic leveling full-casing down-the-hole drilling rig which integrates cast-in-place pile construction equipment and is provided with a segmented leveling base for adjustment in all directions.

[0004] The technical solution adopted by the present invention to solve the technical problem is: an integrated automatic leveling full-casing down-the-hole drilling rig equipment, including a base and a puller integrated on the base, a down-the-hole drilling tool, a fast winch, a telescopic mast, a power system, a concrete pump system and an operating room, wherein the puller is provided with a steel casing matched with the down-the-hole drilling tool;

[0005] The base includes an equipment mounting plate, an integral upper chassis and segmented lower chassis located on both sides, the equipment mounting plate is fixedly arranged on the integral upper chassis, the puller is arranged on the integral upper chassis, and the fast winch, power system, concrete pump system and operating room are all arranged on the equipment mounting plate;

[0006] The down-the-hole drilling tool is hoisted on the equipment installation plate through a fast winch and a telescopic mast, and corresponds to the steel casing on the puller. The down-the-hole drilling tool adopts a high-speed drill tube and a buttress device is arranged on the side to connect with the steel casing. The telescopic mast can be folded on the equipment installation plate;

[0007] The base is also provided with a balancing sliding device and a balancing supporting device. The balancing sliding device is arranged between the integral upper chassis and the segmented lower chassis. The segmented lower chassis is slidably arranged at the bottom of the integral upper chassis through the balancing sliding device. The balancing supporting device provides adjustably supporting the integral upper chassis and the equipment mounting plate on the integral upper chassis.

[0008] As an improvement of the above technical solution, the segmented lower chassis includes a front lower chassis and a rear lower chassis, the front lower chassis and the rear lower chassis are respectively arranged at the two ends of the integral upper chassis, and the total length of the front lower chassis and the rear lower chassis is less than the length of the integral upper chassis, the front lower chassis and the rear lower chassis are both slidably arranged at the two ends of the bottom of the integral upper chassis, and a plurality of balancing sliding devices are respectively arranged between the integral upper chassis and the front lower chassis and the rear lower chassis.

[0009] As a further improvement of the above technical solution, the balancing sliding device includes a leveling wheel group, a leveling cylinder and a cylinder mounting block, one end of the leveling wheel group is connected to the piston rod of the leveling cylinder, and the other end is arranged on the segmented lower chassis, and the leveling cylinder is installed at the bottom of the integral base through the cylinder mounting block; the leveling wheel group includes a balancing wheel and a connecting block, and the balancing wheel is arranged at each end of the connecting block, a connecting shaft is arranged in the middle of the connecting piece, and a sleeve connected to the connecting shaft is arranged at the end of the piston rod of the leveling cylinder, and the leveling cylinder and the connecting block are connected by the matching of the connecting shaft and the sleeve.

[0010] As a further improvement of the above technical solution, the balancing support device includes a support frame, a cylinder leg and a support foot. The support frame is fixed on the integral upper chassis and extends to the side of the integral upper chassis. The cylinder leg is arranged at both ends of the support frame. The support foot is fixed on the oil rod of the cylinder leg. The balancing support device is provided with multiple groups on the integral upper chassis.

[0011] As a further improvement of the above technical solution, protective covers are also provided on both side edges and one end of the segmented lower chassis, and the protective covers extend from the segmented lower chassis to the side of the integral upper chassis; the side of the integral upper chassis is also provided with a frame guardrail, and the frame guardrail is provided in multiple groups on the side of the integral upper chassis.

[0012] As a further improvement of the above technical solution, the telescopic mast includes a turntable, a mast body and a mast head. The mast body can be folded on the turntable, and a telescopic structure for telescoping the mast body is also provided on the mast body; a winch is provided on the mast head, and the winch is connected to a fast winch on the equipment mounting plate.

[0013] As a further improvement of the above technical solution, the turntable includes a transverse support plate and a vertical support plate, the vertical support plate includes two trapezoidal rib plates and connecting ribs connected between the two rib plates, a rotating shaft is also provided on the top of the two connecting rib plates, an axial hole matching the rotating shaft is provided at the bottom of the mast body, and the mast body is rotatably arranged on the vertical support plate through the matching of the rotating shaft and the axial hole; a tilting cylinder is also provided on the transverse support plate, and the tilting cylinder is rotatably arranged at the end of the transverse support plate away from one end of the vertical support plate, and the oil rod of the tilting cylinder is connected to the middle part of the mast body.

[0014] As a further improvement of the above technical solution, the mast head includes two capstan brackets arranged in parallel and a capstan mounting shaft arranged on the capstan brackets, and the capstan is rotatably arranged on the capstan mounting shaft; the bottom of the turntable is also provided with a ring gear connected to the rotating structure, and the turntable is rotatably arranged on the equipment mounting plate through the ring gear and the rotating structure.

[0015] And a process flow of using the above equipment to construct bored piles: an integrated automatic leveling full-casing down-the-hole drilling rig construction process, comprising the following steps:

[0016] Step 1: Put the integrated automatic leveling full-casing down-the-hole drilling rig equipment in place, and use the balance sliding device and the balance support device to make centering adjustments;

[0017] Step 2: Drilling of steel casing, during which the casing verticality is checked and adjusted at any time;

[0018] Step 3: Lower the down-the-hole drill to drill and take soil, and the steel casing rotates to follow up. During the follow-up process, it moves up and down synchronously. During the drilling process, the drilling depth, pressure, and torque are monitored and controlled at any time;

[0019] Step 4: Reach the designed hole depth and inspect the final hole;

[0020] Step 5: Hoisting the steel cage;

[0021] Step 6: Turn on the sand and gravel pump to pump out the mud and water in the hole;

[0022] Step 7: Pour concrete, close the clean water valve, start the concrete pump system, and transport concrete through the hose;

[0023] Step 8: Pull out the steel casing. After pouring is completed, pull out the steel casing during the concrete pouring process, while pouring and pulling out.

[0024] As an improvement of the above technical solution, the centering adjustment process in step one is: first start the balancing sliding device arranged between the integral upper chassis and the segmented lower chassis, and the leveling wheel group on the balancing sliding device drives the integral upper chassis and the equipment mounting plate to slide on the integral lower chassis to adjust the position of down-the-hole drilling tools, pullers, fast winches, concrete pump systems and other equipment relative to the construction point, and then start the leveling cylinder arranged on the leveling wheel group, and the leveling cylinder drives the height of the local leveling wheel group on the segmented lower chassis, so that the equipment supported by the integral upper chassis is in a horizontal plane; finally, start the balancing support device to lift the base and the equipment arranged on the base, and adjust the height of these equipment to achieve a suitable construction position. During the construction process, the balancing sliding device and the balancing support device can be adjusted at any time according to construction needs.

[0025] The beneficial effect is that the full-casing down-the-hole drilling rig of the present invention integrates the equipment used for the construction of bored piles into one, and integrates different equipment reasonably through staggered installation positions, so that a variety of bored pile construction equipment can be used on one machine at the same time, which is convenient for the transportation of equipment and the coordination of equipment. At the same time, a segmented base is provided for adjusting these integrated equipment, and the height adjustment of the integrated base is realized, making the use of the integrated base more convenient, the application range wider, and the balance and positioning accuracy higher during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Figure 1 It is a schematic diagram of the assembly of the present invention;

[0028] Figure 2 It is a partial structural schematic diagram of the integrated device of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the puller and the drilling tool of the present invention;

[0030] Figure 4 It is a schematic diagram of the drilling tool structure of the present invention;

[0031] Figure 5 It is a schematic diagram of the structure of the base part of the present invention;

[0032] Figure 6 It is a schematic diagram of the bottom surface structure of the base part of the present invention;

[0033] Figure 7 It is a schematic diagram of the structure of the integral upper chassis of the present invention;

[0034] Figure 8 It is a schematic diagram of the structure of the balanced sliding device of the present invention;

[0035] Fig. 9 It is an enlarged view of the bottom structure of the telescopic mast of the present invention;

[0036] Fig.10 It is a schematic diagram of the telescopic mast structure of the present invention.

[0037] 1. Base; 11. Equipment mounting plate; 12. Integral upper chassis; 13. Segmented lower chassis; 131. Front lower chassis; 132. Rear lower chassis; 14. Protective cover; 15. Frame guardrail; 2. Balancing sliding device; 21. Leveling wheel set; 22. Leveling cylinder; 23. Cylinder mounting block; 3. Balancing support device; 31. Support frame; 32. Cylinder support leg; 33. Support foot; 4. Puller; 41. Steel casing; 5. DTH drilling tool; 51. Buttress device; 6. Concrete pump system; 7. Telescopic mast; 71. Turntable; 72. Mast body; 73. Mast head; 74. Winch; 75. Tilt cylinder; 76. Ring gear; 8. Fast winch; 9. Operation room. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the invention can be combined interchangeably without conflicting with each other.

[0039] Reference Figure 1 , Figure 2An integrated automatic leveling full-casing down-the-hole drilling rig comprises a base 1 and a puller 4, a down-the-hole drilling tool 5, a fast winch 8, a telescopic mast 7, a power system, a concrete pump system 6 and an operating room 9 integrated on the base 1. The puller 4 is provided with a steel casing 41 matched with the down-the-hole drilling tool 5; the base 1 comprises an equipment mounting plate 11, an integral upper chassis 12 and a segmented lower chassis 13 located on both sides, the equipment mounting plate 11 is fixedly arranged on the integral upper chassis 12 The puller 4 is arranged on the integral upper chassis 12, and the fast winch 8, power system, concrete pumping system 6 and operating room 9 are all arranged on the equipment mounting plate 11; the puller 4, down-the-hole drilling tool 5, fast winch 8, power system, concrete pumping system 6 and operating room 9 are integrated and arranged on the integral base 1 by combining the equipment mounting plate 11, the integral upper chassis 12 and the segmented lower chassis 13, which is more convenient for the use of multiple equipment, the transportation of equipment and the coordination between equipment. It not only increases the construction efficiency, but also reduces a lot of manpower and material resources, increases the cost of construction or production, reduces the difficulty of construction, and increases the efficiency and accuracy of construction.

[0040] Reference Figure 3 , Figure 4 The down-the-hole drill 5 is hoisted on the equipment installation plate 11 through a fast winch 8 and a telescopic mast 7, and corresponds to the steel casing 41 on the puller 4. The down-the-hole drill 5 adopts a high-speed drill barrel and a buttress device 51 is arranged on the side to connect with the steel casing 41. An adapter plate is also arranged on the top of the high-speed barrel sleeve, and a waterway joint is also arranged on the adapter plate. The waterway connection is used to connect the waterway pipe when the bored pile is poured. The motor mounting sleeve is connected to the barrel sleeve through the waterway plate. The rotary drive device driven by the drill barrel drive device to rotate and telescopic movement can provide better rotary force for the high-speed drill barrel, increase the speed of the high-speed drill barrel, and the waterway pipeline can also cool the high-speed drill barrel when it is working, so that the speed can reach 100r / s. When the high-speed drill barrel is drilling at high speed, a synchronous liquid guide tube is also arranged inside the driving device that cooperates with it, which can provide cooling liquid for the high-speed working drill barrel in time. The steel casing 41 is also provided with a limiting groove that cooperates with the buttress device 51. The down-the-hole drilling tool 5 needs the steel casing 41 to protect the wall when drilling, and the buttress device 51 provided on the down-the-hole drilling tool 5 can realize the connection between the down-the-hole drilling tool 5 and the steel casing 41. When the down-the-hole drilling tool 5 is connected with the steel casing 41, the buttress device 51 on the down-the-hole drilling tool 5 cooperates with the limiting groove on the steel casing 41. The limiting groove limits the buttress device 51 in multiple directions, avoiding deviation when the buttress device 51 is connected with the steel casing 41, causing the steel casing 41 or the down-the-hole drilling tool 5 to tilt. The telescopic mast 7 is foldably arranged on the equipment mounting plate 11.

[0041] Reference Figure 5 , Figure 7 The base 1 is also provided with a balancing sliding device 2 and a balancing supporting device 3. The balancing sliding device 2 is provided between the integral upper chassis 12 and the segmented lower chassis 13. The segmented lower chassis 13 is slidably provided at the bottom of the integral upper chassis 12 through the balancing sliding device 2. The balancing supporting device 3 provides adjustable support to the integral upper chassis 12 and the equipment mounting plate 11 on the integral upper chassis 12. The integral upper chassis 12 and the segmented lower chassis 13 are adjusted by sliding the balancing sliding device 2, so that the position of the integral upper chassis 12 relative to the segmented lower chassis 13 is moved, so that the integrated equipment can adjust its position and balance at any time during use, which increases the flexibility and balance stability of the integrated equipment, and increases the production and construction efficiency and precision.

[0042] Reference Figure 6 The segmented lower chassis 13 includes a front lower chassis 131 and a rear lower chassis 132, which are respectively arranged at the two ends of the integral upper chassis 12, and the total length of the front lower chassis 131 and the rear lower chassis 132 is less than the length of the integral upper chassis 12. The front lower chassis 131 and the rear lower chassis 132 are both slidably arranged at the two ends of the bottom of the integral upper chassis 12, and the balancing sliding device 2 is provided between the integral upper chassis 12 and the front lower chassis 131 and the rear lower chassis 132. A smaller segmented lower chassis 13 is respectively arranged at the two ends of the bottom of the integral upper chassis 12, which can provide the integral upper chassis 12 with a range of movement on the segmented lower chassis 13. And the movable support of the integral upper chassis 12 from both ends can ensure the balance of the two ends of the integral upper chassis 12, which is more conducive to the adjustment of integrated equipment such as drilling rigs.

[0043] Reference Figure 8The balancing sliding device 2 includes a leveling wheel group 21, a leveling oil cylinder 22 and an oil cylinder mounting block 23. One end of the leveling wheel group 21 is connected to the piston rod of the leveling oil cylinder 22, and the other end is arranged on the segmented lower chassis 13. The leveling oil cylinder 22 is installed at the bottom of the integral base 1 through the oil cylinder mounting block 23. The leveling wheel group 21 includes a balancing wheel and a connecting block. The balancing wheel is arranged at each end of the connecting block. A connecting shaft is arranged in the middle of the connecting member. The piston rod end of the leveling oil cylinder 22 is provided with a sleeve connected to the connecting shaft. The leveling oil cylinder 22 and the connecting block are connected by the matching of the connecting shaft and the sleeve. When the balance of the leveling wheel group 21 is adjusted, the angle changes will also be encountered. Therefore, the adjustment between the leveling oil cylinder 22 connected by the connecting shaft and the sleeve and the leveling wheel group 21 is more flexible to avoid the unbalanced state causing damage to the leveling oil cylinder 22. The balancing sliding devices 2 are roughly divided into four groups, which are respectively arranged at the positions near the four corners on both sides of the integral upper chassis 12, and form a stable support for the equipment on the base 1 at the four corners. Each group is provided with two balancing sliding devices 2. When the position of the equipment needs to be adjusted, the leveling wheel group 21 on the balancing sliding device 2 is started, and the balancing wheel on the leveling wheel group 21 rotates, thereby driving the integral upper chassis 12 connected thereto to move on the segmented lower chassis 13. When the segmented lower chassis 13 is placed in a relatively uneven position, a group of balancing sliding devices 2 near a certain corner can be adjusted separately, and the leveling oil cylinder 22 on one or two balancing sliding devices 2 is started, and the piston rod on the leveling oil cylinder 22 is extended and retracted, driving the leveling wheel group 21 connected thereto to move up and down, thereby increasing or reducing the distance between the integral upper chassis 12 and the segmented lower chassis 13 at a certain location, thereby ensuring that the equipment is in the same plane on the equipment mounting plate 11 and the integral upper chassis 12.

[0044] The balancing support device 3 includes a support frame 31, a cylinder leg 32 and a support foot 33. The support frame 31 is fixed on the integral upper chassis 12 and extends to the side of the integral upper chassis 12. The cylinder leg 32 is arranged at both ends of the support frame 31. The support foot 33 is fixed on the oil rod of the cylinder leg 32. The balancing support device 3 is provided with multiple groups on the integral upper chassis 12. When the chassis is adjusted by using the balancing support device 3, the cylinder leg 32 can be directly started, and the cylinder leg 32 can be extended and retracted to drive the entire base 1 to move upward and downward, which is convenient for adjusting the equipment in special circumstances. At the same time, the support frame 31 can also be used to adjust the left and right positions of the integral upper chassis 12 relative to the segmented lower chassis 13, so that the equipment on the integral upper chassis 12 corresponds accurately to the construction position. Preferably, the balancing support device 3 is provided with two groups, each group is provided with two cylinder legs 32 and feet 33, and two of the four cylinder legs 32 and feet 33 are provided on each side of the integral upper chassis 12. Since the cylinder legs 32 and feet 33 drive the integral upper chassis 12 to rise and fall through the cylinder, the integral upper chassis 12 and the segmented lower chassis 13 are thicker as a whole. Therefore, when the cylinder legs 32 are directly provided on the equipment mounting plate 11 for driving, they are easy to rub against the side edges of the two chassis, which affects the movement process. Moreover, the cylinder legs 32 are prone to shaking during movement. When they are directly connected to the integral upper chassis 12, the shaking has a greater impact on the equipment. Therefore, a support frame 31 is provided across the equipment mounting plate 11. The cylinder legs 32 are connected to the integral upper chassis 12 more stably through the connecting bracket. A driving device for driving the support frame 31 to move left and right at the installation position is provided in the support frame 31. The driving device drives the support frame 31 to move left and right, thereby driving the integral upper chassis 12 to adjust left and right.

[0045] Reference Figure 1 , Figure 5, the two side edges and one end of the segmented lower chassis 13 are also provided with protective covers 14, and the protective covers 14 extend from the segmented lower chassis 13 to the side of the integral upper chassis 12; the protective covers 14 can be set to be transparent, which can not only protect the movable balancing sliding device 2, prevent the construction personnel from contacting with the movable parts and causing damage, but also increase the overall beauty and neatness of the equipment. The ends of the integral upper chassis 12 and the side protective covers 14 are both provided with card edges, and the card edges on the integral upper chassis 12 and the card edges on the side protective covers 14 are staggered, and the two are movably connected. When the balancing support device 3 fixedly connected to the integral upper chassis 12 lifts the integral upper chassis 12 upward, the distance between the integral upper chassis 12 and the segmented lower chassis 13 increases. In order to prevent the two from separating, the card edges on the integral upper chassis 12 and the protective covers 14 are staggered and connected to limit the movable distance between the two, thereby increasing the stability of the balancing support device 3 during the adjustment process. The side of the integral upper chassis 12 is also provided with a frame guardrail 15, and the frame guardrail 15 is provided in multiple groups on the side of the integral upper chassis 12. The function of the frame guardrail 15 is similar to that of the protective cover 14, but the frame guardrail 15 is made of multiple steel bars, and has higher hardness and support strength. It can protect the equipment when the equipment is hit hard, and prevent the equipment from being damaged by the heavy impact. The retractable frame guardrail 15 can be used as a side bracket to facilitate the operator to get to the operating position.

[0046] Reference Fig. 9 , Fig.10 The telescopic mast 7 includes a turntable 71, a mast body 72 and a mast head 73. The mast body 72 can be folded on the turntable 71, and a telescopic structure for telescoping the mast body 72 is also provided on the mast body 72. The foldable and telescopic mast body 72 will not affect the hoisting of the down-the-hole drilling tool 5, and the mast body 72 can be folded when not in use, thereby reducing the space occupied by the mast body 72, facilitating the transportation and storage of the equipment, facilitating the use of the equipment, and improving the construction efficiency. A winch 74 is provided on the mast head 73, and the winch 74 is connected to the fast winch 8 on the equipment mounting plate 11. The winch 74 and the pulley on the mast can not only wind the rope for hoisting the down-the-hole drilling tool 5, but also the different types of winches 74 and pulleys provided on the side can wind the pipelines and oil channels used to transport various liquid muds, so that these pipelines can be transported synchronously with the down-the-hole drilling tool 5.

[0047] The turntable 71 includes a transverse support plate and a vertical support plate, the vertical support plate includes two trapezoidal rib plates and connecting ribs connected between the two rib plates, a rotating shaft is also provided on the top of the two connecting rib plates, and an axial hole matching the rotating shaft is provided at the bottom of the mast body 72, and the mast body 72 is rotatably arranged on the vertical support plate through the matching of the rotating shaft and the axial hole; a tilting cylinder 75 is also provided on the transverse support plate, and the tilting cylinder 75 is rotatably arranged at the end of the transverse support plate away from one end of the vertical support plate, and the oil rod of the tilting cylinder 75 is connected to the middle part of the mast body 72. The folding device that cooperates with the tilting oil cylinder 75 and the rotating shaft can realize the automatic support and folding process of the mast. When the mast is used, the tilting oil cylinder 75 is directly started. Since the mast and the tilting oil cylinder 75 are both set by the rotating shaft, when the oil cylinder rotating shaft retracts, the mast body 72 connected to the oil cylinder rod is pulled by the tilting oil cylinder 75 and rotates along the turntable 71. Since the mast body 72 and the oil cylinder are both set relatively long, the oil cylinder also rotates when the mast body 72 rotates downward, until the mast body 72 is parallel to the turntable 71, the mast body 72 drops to the lowest position, and the mast is completely recovered. When the mast needs to be used for support, the above steps are repeated, and the mast rotates in the opposite direction to a vertical state.

[0048] The mast head 73 includes two capstan 74 brackets arranged in parallel and a capstan 74 mounting shaft arranged on the capstan 74 brackets, and the capstan 74 is rotatably arranged on the capstan 74 mounting shaft; the bottom of the turntable 71 is also provided with a ring gear 76 connected to the rotating structure, and the turntable 71 is rotatably arranged on the equipment mounting plate 11 through the ring gear 76 and the rotating structure, so as to facilitate the angle adjustment of the mast during use. The mast body 72 is provided with multiple sections, the first section of the mast body 72 is arranged on the turntable 71, and the remaining mast bodies 72 are connected in sequence, and a locking structure is also provided at the connection between each two masts. Since the drilling tool requires higher stability, it is preferred that the mast body 72 is arranged in two sections, and the tilting cylinder is connected to the first section of the mast body 72 at the bottom, and the two sections of the mast body 72 are retracted when not in use, and then rotated and recovered after retraction.

[0049] The above equipment integrates the functions of casing installation, self-drilling, steel cage hoisting, concrete pouring, etc. The construction process includes the following steps:

[0050] Step 1: put the integrated automatic leveling full-casing down-the-hole drilling rig equipment in place, and use the balance sliding device 2 and the balance support device 3 to perform centering adjustment;

[0051] The process of centering adjustment is as follows: first, the balancing sliding device 2 arranged between the integral upper chassis 12 and the segmented lower chassis 13 is started, and the leveling wheel group 21 on the balancing sliding device 2 drives the integral upper chassis 12 and the equipment mounting plate 11 to slide on the integral lower chassis to adjust the positions of the down-the-hole drilling tool 5, the puller 4, the fast winch 8 and the concrete pump system and other equipment relative to the construction point, and then the leveling cylinder 22 arranged on the leveling wheel group 21 is started, and the leveling cylinder 22 drives the height of the local leveling wheel group 21 on the segmented lower chassis 13, so that the equipment supported by the integral upper chassis 12 is in a horizontal plane; finally, the balancing support device 3 is started to lift the base 1 and the equipment arranged on the base 1, and the height of these equipment is adjusted to reach a suitable construction position. During the construction process, the balancing sliding device 2 and the balancing support device 3 can be adjusted at any time according to the construction needs.

[0052] Step 2: Drilling the steel casing 41, and performing casing verticality detection and adjustment at any time during the drilling process;

[0053] Step 3: Lower the down-the-hole drill 5 to drill and take soil, and the steel casing 41 rotates and follows up, and moves up and down synchronously during the follow-up process. The up and down movement of the steel casing 41 during the follow-up process can prevent the down-the-hole drill 5 from getting stuck in the borehole. During the drilling process, the drilling depth, pressure, and torque are monitored and controlled at any time; the down-the-hole drill 5 uses a high-speed drill barrel to drill holes, and the water pipe cools it while drilling the barrel, so that it can maintain a high speed and improve the drilling efficiency.

[0054] Step 4: Reach the designed hole depth and detect the final hole; the maximum hole depth that can be achieved by drilling with the above equipment is 50 to 70 meters, and the drilling diameter includes various sizes such as 1.0m, 1.2m, and 1.4m.

[0055] Step 5: Hoisting the steel cage;

[0056] Step 6: Turn on the sand and gravel pump to pump out the mud and water in the hole;

[0057] Step 7: pour concrete, close the clean water valve, start the concrete pump system 6, and transport concrete through the hose; when pouring concrete, use the pipeline directly set in the down-the-hole drill 5, which can also serve as a drainage and emptying circulation pipeline in the hole.

[0058] Step 8: Pull out the steel casing 41. After pouring is completed, pull out the steel casing 41 during the concrete pouring process, and pull out while pouring.

[0059] The above is a specific description of the preferred implementation of the present invention, but the invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An integrated automatic leveling full casing down-the-hole drilling rig, characterized in that: It includes a base and a puller integrated on the base, a down-the-hole drilling tool, a fast winch, a telescopic mast, a power system, a concrete pump system and an operating room, wherein the puller is provided with a steel casing matched with the down-the-hole drilling tool; The base includes an equipment mounting plate, an integral upper chassis and segmented lower chassis located on both sides, the equipment mounting plate is fixedly arranged on the integral upper chassis, the puller is arranged on the integral upper chassis, and the fast winch, power system, concrete pump system and operating room are all arranged on the equipment mounting plate; The down-the-hole drilling tool is hoisted on the equipment installation plate through a fast winch and a telescopic mast, and corresponds to the steel casing on the puller. The down-the-hole drilling tool adopts a high-speed drill tube and a buttress device is arranged on the side to connect with the steel casing. The telescopic mast can be folded on the equipment installation plate; The base is also provided with a balancing sliding device and a balancing supporting device, wherein the balancing sliding device is provided between the integral upper chassis and the segmented lower chassis, the segmented lower chassis is slidably provided at the bottom of the integral upper chassis through the balancing sliding device, and the balancing supporting device is provided on the integral upper chassis to adjustably support the integral upper chassis and the equipment mounting plate; The segmented lower chassis comprises a front lower chassis and a rear lower chassis, the front lower chassis and the rear lower chassis are respectively arranged at two ends of the integral upper chassis, and the total length of the front lower chassis and the rear lower chassis is less than the length of the integral upper chassis, the front lower chassis and the rear lower chassis are both slidably arranged at two ends of the bottom of the integral upper chassis, and a plurality of balancing sliding devices are respectively arranged between the integral upper chassis and the front lower chassis and the rear lower chassis; The balancing sliding device comprises a leveling wheel group, a leveling oil cylinder and an oil cylinder mounting block, one end of the leveling wheel group is connected to the piston rod of the leveling oil cylinder, and the other end is arranged on the segmented lower chassis, and the leveling oil cylinder is installed at the bottom of the integral base through the oil cylinder mounting block; the leveling wheel group comprises a balancing wheel and a connecting block, one balancing wheel is arranged at each of the two ends of the connecting block, a connecting shaft is arranged in the middle of the connecting block, a shaft sleeve connected to the connecting shaft is arranged at the end of the piston rod of the leveling oil cylinder, and the leveling oil cylinder and the connecting block are connected by the matching of the connecting shaft and the shaft sleeve; The balancing support device includes a support frame, a cylinder leg and a support foot. The support frame is fixed on the integral upper chassis and extends to the side of the integral upper chassis. The cylinder legs are arranged at both ends of the support frame. The support foot is fixed on the oil rod of the cylinder leg. The balancing support device is provided in multiple groups on the integral upper chassis.

2. The integrated automatic leveling full-casing down-the-hole drilling rig according to claim 1 is characterized by: Protective covers are also provided on both side edges and one end of the segmented lower chassis, and the protective covers extend from the segmented lower chassis to the side of the integral upper chassis; frame guardrails are also provided on the side of the integral upper chassis, and multiple groups of frame guardrails are provided on the side of the integral upper chassis.

3. The integrated automatic leveling full-casing down-the-hole drilling rig according to claim 1 is characterized by: The telescopic mast comprises a turntable, a mast body and a mast head. The mast body can be folded on the turntable, and a telescopic structure for telescoping the mast body is also provided on the mast body. A winch is provided on the mast head, and the winch is connected to a fast winch on the equipment mounting plate.

4. The integrated automatic leveling full-casing down-the-hole drilling rig according to claim 3 is characterized by: The turntable includes a transverse support plate and a vertical support plate, the vertical support plate includes two trapezoidal rib plates and connecting ribs connected between the two rib plates, a rotating shaft is also provided on the top of the two connecting rib plates, an axial hole matched with the rotating shaft is provided at the bottom of the mast body, and the mast body is rotatably arranged on the vertical support plate through the matching of the rotating shaft and the axial hole; a tilting cylinder is also provided on the transverse support plate, the tilting cylinder is rotatably arranged at the end of the transverse support plate away from one end of the vertical support plate, and the oil rod of the tilting cylinder is connected to the middle part of the mast body.

5. The integrated automatic leveling full-casing down-the-hole drilling rig according to claim 4 is characterized by: The mast head includes two capstan brackets arranged in parallel and a capstan mounting shaft arranged on the capstan brackets, and the capstan is rotatably arranged on the capstan mounting shaft; the bottom of the turntable is also provided with a ring gear connected to the rotating structure, and the turntable is rotatably arranged on the equipment mounting plate through the ring gear and the rotating structure.

6. A construction process of the integrated automatic leveling full-casing down-the-hole drilling rig equipment according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: Put the integrated automatic leveling full-casing down-the-hole drilling rig equipment in place, and use the balance sliding device and the balance support device to make centering adjustments; Step 2: Drilling of steel casing, during which the casing verticality is checked and adjusted at any time; Step 3: Lower the down-the-hole drill to drill and take soil, and the steel casing rotates to follow up. During the follow-up process, it moves up and down synchronously. During the drilling process, the drilling depth, pressure, and torque are monitored and controlled at any time; Step 4: Reach the designed hole depth and inspect the final hole; Step 5: Hoisting the steel cage; Step 6: Turn on the sand and gravel pump to pump out the mud and water in the hole; Step 7: Pour concrete, close the clean water valve, start the concrete pump system, and transport concrete through the hose; Step 8: Pull out the steel casing. After pouring is completed, pull out the steel casing during the concrete pouring process, while pouring and pulling out.

7. The construction process of the integrated automatic leveling full-casing down-the-hole drilling rig according to claim 6 is characterized by: The centering adjustment process in step one is as follows: first, start the balancing sliding device arranged between the integral upper chassis and the segmented lower chassis, and the leveling wheel group on the balancing sliding device drives the integral upper chassis and the equipment mounting plate to slide on the integral lower chassis to adjust the position of the down-the-hole drilling tools, pullers, fast winches, concrete pumping systems and other equipment relative to the construction point, and then start the leveling cylinder arranged on the leveling wheel group, and the leveling cylinder drives the height of the local leveling wheel group on the segmented lower chassis, so that the equipment supported by the integral upper chassis is in a horizontal plane; finally, start the balancing support device to lift the base and the equipment arranged on the base, and adjust the height of these equipment to achieve a suitable construction position. During the construction process, the balancing sliding device and the balancing support device can be adjusted at any time according to the construction needs.

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