Pile foundation drilling equipment

Abstract

The utility model relates to the technical field of rotary excavating drilling, in particular to pile foundation drilling equipment which comprises a drilling machine, a driving shaft and a rotary excavating cylinder drill, the driving shaft is rotatably connected to the drilling machine, and the driving shaft is coaxially connected with the rotary excavating cylinder drill; the rotary excavating barrel drill comprises a rotary excavating barrel part, the rotary excavating barrel part comprises a barrel body and a rotary excavating cover, a cavity of a hollow structure is formed in the barrel body, and at least one opening communicated with the cavity is formed in the rotary excavating cover; the rotary excavating cover is arranged on the cylinder body in an opening and closing mode, a rotary drill bit and at least one cutting tooth are arranged at the bottom of the rotary excavating cover, the rotary drill bit is rotationally connected to the rotary excavating cover, and the problem that the drilling capacity is limited due to the fact that traditional pile foundation drilling equipment cannot effectively crush rocks in a complex stratum is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary drilling, in particular to a pile foundation drilling device. Background Art

[0002] In the construction industry, pile foundation drilling equipment is a crucial tool for ensuring project quality and progress. By installing a rotary drill auger to create holes, its efficient and stable performance has made it widely used in a variety of fields, including water well construction and pile hole construction for urban high-rise buildings. Driven by an advanced hydraulic system, pile foundation drilling equipment exhibits powerful drilling capabilities and precise hole position control, easily adapting to a variety of geological conditions and construction requirements, greatly improving construction efficiency and drilling accuracy. However, while pile foundation drilling equipment performs well in most situations, its rotary drill auger's drilling capacity is significantly limited in complex geological conditions such as hard rock, dense gravel, and boulder formations. The thick and hard rock formations make it difficult for the rotary drill auger to effectively break the rock, and even more difficult to break the boulders into segments. This not only increases the wear of the drill bit, but also because of the close connection between the rock and the rock formation, it is difficult for the rock entering the drill barrel to separate from the rock formation. Once the rock is stuck in the drill barrel, extraction will become extremely difficult, seriously affecting the continuity of drilling and the overall construction efficiency.

[0003] Therefore, in view of this, the inventor proposes a pile foundation drilling device to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a pile foundation drilling device, aiming to solve the problem that traditional pile foundation drilling devices are unable to effectively break rocks in complex strata, resulting in limited drilling capacity.

[0005] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0006] A pile foundation drilling device comprises a drilling rig, a drive shaft and a rotary drill barrel, wherein the drive shaft is rotatably connected to the drilling rig and the drive shaft is coaxially connected to the rotary drill barrel;

[0007] The rotary drilling barrel drill comprises a rotary drilling barrel member, the rotary drilling barrel member comprises a barrel body and a rotary drilling cover, a hollow cavity is formed in the barrel body, and the rotary drilling cover is provided with at least one opening communicating with the cavity;

[0008] The rotary drilling cover is arranged on the cylinder body in an openable and closable manner. A rotary drill bit and at least one cutting tooth are arranged on the bottom of the rotary drilling cover. The rotary drill bit is rotatably connected to the rotary drilling cover.

[0009] Furthermore, the rotary drilling cover includes a first cover plate and a second cover plate, the first cover plate is hinged on the cylinder, the second cover plate is rotatably connected to the first cover plate, and the rotary drill bit and each cutting tooth are installed on the side of the second cover plate away from the first cover plate.

[0010] Furthermore, a first mounting hole is provided in the middle of the first cover plate, a connecting clamp is provided in the first mounting hole, the connecting clamp is rotatably connected to the first cover plate, and a second mounting hole is provided on the second cover plate, the end of the connecting clamp passes through the second mounting hole and is fixedly connected to the second cover plate.

[0011] Furthermore, a threaded hole is provided at one end of the connecting clamp, and the rotary drill bit is mounted on the connecting clamp through the threaded hole.

[0012] Furthermore, the rotary drilling barrel drill includes a connecting piece, which includes a connecting barrel and a mounting plate. The mounting plate is fixedly arranged in the connecting barrel, the bottom end of the connecting barrel is coaxially connected to the barrel body, and the top end of the connecting barrel is coaxially connected to the drive shaft.

[0013] Furthermore, a telescopic member is rotatably connected in the connecting cylinder, and the bottom end of the telescopic member passes through the cylinder and extends into the cavity;

[0014] The telescopic member includes a telescopic cylinder and a telescopic rod, and the telescopic rod can move along the length direction of the telescopic cylinder;

[0015] A first motor is provided on the mounting plate, and the first motor is connected to the telescopic cylinder and is used for driving the telescopic cylinder to rotate.

[0016] Furthermore, a second motor is provided in the telescopic cylinder, the second motor is coaxially connected to a screw, a slider is threadedly connected to the screw, a plurality of guide rods are installed on the slider, and the ends of the guide rods are connected to the telescopic rod.

[0017] Furthermore, a connection hole is provided at the end of the connection clamp, and the telescopic rod can be inserted into the connection hole to drive the connection clamp to rotate.

[0018] Furthermore, a connecting block is provided on the first cover plate, a clamping hole is provided on the connecting block, and a hook is provided on the cylinder body, and the hook can be extended into or detached from the clamping hole.

[0019] Furthermore, a first connecting rod is provided in the cylinder, a second connecting rod is hingedly connected to the first connecting rod, and an end of the second connecting rod is connected to the hook;

[0020] A cylinder is provided on the mounting plate, and the cylinder is connected to a push rod, which is used to be connected to the first connecting rod.

[0021] Beneficial effects of the utility model:

[0022] This application achieves effective crushing of complex strata (such as hard rock, dense gravel, and boulder layers) by adding a rotatable drill bit and cutting teeth to the bottom of the rotary drilling cover, and utilizing a combined drive of a telescopic member and a first motor. This not only enhances the rock crushing capability but also significantly increases the drilling speed, enabling the equipment to achieve deeper drilling and higher construction efficiency when faced with complex strata. When processing hard rock and boulders through the drill bit and cutting teeth, the boulders can be quickly crushed into segments and the crushed rock and soil can be incorporated into the cavity, ensuring the smooth progress of the drilling operation, reducing construction costs, and improving overall construction efficiency and quality.

[0023] Other advantages, objectives and features of the present application will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present application. The objectives and other advantages of the present application can be achieved and obtained through the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the pile foundation drilling equipment of the utility model;

[0025] Figure 2 The rotary drill barrel in the pile foundation drilling equipment of the utility model (see Figure 1 ) Structural diagram;

[0026] Figure 3 The rotary drill barrel in the pile foundation drilling equipment of the utility model (see Figure 2 ) Structural diagram;

[0027] Figure 4 This is a schematic diagram of the explosion structure of the rotary drill barrel in the pile foundation drilling equipment of the utility model;

[0028] Figure 5 This is a schematic diagram of the partially disassembled structure of the rotary drill barrel in the pile foundation drilling equipment of the present utility model;

[0029] Figure 6 It is a cross-sectional schematic diagram of the rotary drill barrel in the pile foundation drilling equipment of the present utility model;

[0030] Figure 7 This is a schematic diagram of the structure of the connecting clamp in the pile foundation drilling equipment of the present utility model;

[0031] Figure 8This is a schematic diagram of the telescopic structure of the pile foundation drilling equipment of the present utility model;

[0032] Figure 9 This is a schematic diagram of the split structure of the telescopic member in the pile foundation drilling equipment of the present utility model;

[0033] Figure 10 This is a schematic diagram of the rotary drill bit structure in the pile foundation drilling equipment of the present utility model.

[0034] Among them, the drilling rig 1, the drive shaft 2, the rotary drilling drill 3, the rotary drilling barrel member 4, the barrel body 41, the rotary drilling cover 42, the first cover plate 421, the first mounting hole 4211, the connecting block 4212, the clamping hole 4213, the hook 4214, the second cover plate 422, the second mounting hole 4221, the rotary drill bit 5111, the connecting member 5, the connecting barrel 51, the mounting plate 52, the cutting teeth 6, the connecting clamp 7, the threaded hole 71, the telescopic member 8, the telescopic barrel 81, the telescopic rod 82, the second motor 83, the screw 84, the slider 85, the guide rod 86, the first motor 9, the first connecting rod 101, the second connecting rod 102, the cylinder 103, and the push rod 104. DETAILED DESCRIPTION

[0035] The following describes the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are intended solely to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0036] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. Therefore, the drawings only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0037] This embodiment provides a pile foundation drilling equipment, such as Figures 1 to 10 As shown, it includes a drilling rig 1, a drive shaft 2 and a rotary drilling barrel 3. The drive shaft 2 is rotatably connected to the drilling rig 1. Specifically, the drilling rig 1 is provided with a power motor (not shown) and a hydraulic lifting rod (not shown). The power motor is coaxially connected to the drive shaft 2 to drive the drive shaft 2 to rotate. The hydraulic lifting rod is connected to the power motor and the drive shaft 2 to drive the power motor and the drive shaft 2 to rise or fall.

[0038] It should be noted that the drilling rig 1 driving the drive shaft 2 to rotate is well known to those skilled in the art and is not limited to the above-mentioned power motor and hydraulic lifting rod structure.

[0039] like Figure 2 、 Figure 3 and Figure 6 As shown, the bottom of the drive shaft 2 is coaxially connected to the rotary drilling barrel 3; the rotary drilling barrel 3 includes a rotary drilling barrel member 4 and a connecting member 5, the rotary drilling barrel member 4 includes a barrel body 41 and a rotary drilling cover 42, a hollow cavity is formed in the barrel body 41, and the rotary drilling cover 42 is provided with at least one opening communicating with the cavity, and the rotary drilling cover 42 is openably arranged on the barrel body 41; during the rotary drilling process, the rotary drilling cover 42 crushes the underground soil and rock, and the crushed soil and rock enter the barrel through the opening on the rotary drilling cover 42 Inside the body 41, as the cylinder 41 continues to drill down, the soil in the cavity gradually accumulates until it is filled; the drilling is stopped and the cylinder 41 is lifted. After the cylinder 41 is lifted to the ground or the working platform, the rotary drilling cover 42 is opened. The opening of the rotary drilling cover 42 allows the soil in the cavity to be cleaned out, such as dumping or shoveling out, to facilitate the cleaning of the soil. After the soil is cleaned, the rotary drilling cover 42 is closed and preparations are made for the next drilling work. This cycle is repeated to achieve efficient and continuous drilling construction.

[0040] like Figure 3 and Figure 4 As shown, the bottom of the rotary drilling cover 42 is provided with a rotary drill bit 5111 and at least one cutting tooth 6, and the rotary drill bit 5111 is rotatably connected to the rotary drilling cover 42; the rotary drilling cover 42 includes a first cover plate 421 and a second cover plate 422, the first cover plate 421 is hinged on the cylinder 41 and can be opened or closed, and the second cover plate 422 is rotatably connected to the bottom of the first cover plate 421, and the rotary drill bit 5111 and each cutting tooth 6 are installed on the side of the second cover plate 422 away from the first cover plate 421 (i.e. Figure 3 In the embodiment, the rotary drill bit 5111 and the cutting teeth 6 are mounted on the bottom of the second cover plate 422).

[0041] As a preferred embodiment, Figure 4 As shown, a first mounting hole 4211 is provided in the middle of the first cover plate 421, and a connecting clamp 7 is provided in the first mounting hole 4211. The connecting clamp 7 is rotatably connected to the first cover plate 421 through the first mounting hole 4211; a second mounting hole 4221 is provided on the second cover plate 422, and the end of the connecting clamp 7 passes through the second mounting hole 4221 and is fixedly connected to the second cover plate 422, that is, driving the connecting clamp 7 to rotate can drive the second cover plate 422 to rotate.

[0042] like Figure 4As shown, a threaded hole 71 is provided on the connecting clamp 7, and the rotary drill bit 5111 is installed on the connecting clamp 7 through the threaded hole 71. By driving the connecting clamp 7 to rotate, not only the second cover plate 422 is driven to rotate, but also the rotary drill bit 5111 can be driven to rotate.

[0043] In a possible embodiment, the rotary drill bit 5111 is not limited to being installed on the connecting clamp 7, but can also be directly installed on the bottom of the second cover plate 422; moreover, the number of the rotary drill bits 5111 is not limited to one, but can be two, three or more.

[0044] As a preferred embodiment, Figure 6 As shown, the connecting member 5 includes a connecting tube 51 and a mounting plate 52. The mounting plate 52 is fixedly arranged in the connecting tube 51. The bottom end of the connecting tube 51 is coaxially connected to the cylinder 41, and the top end of the connecting tube 51 is coaxially connected to the drive shaft 2. The drive shaft 2 drives the cylinder 41 to rotate through the connecting tube 51. The telescopic member 8 is rotatably connected in the connecting tube 51. The bottom end of the telescopic member 8 passes through the top of the cylinder 41 and extends into the cavity; Figure 8 and Figure 9 As shown, the telescopic member 8 includes a telescopic cylinder 81 and a telescopic rod 82 , and the telescopic rod 82 can move along the length direction of the telescopic cylinder 81 .

[0045] like Figure 6 As shown, a first motor 9 is provided on the mounting plate 52, and the output shaft of the first motor 9 passes through the mounting plate 52 and is connected to the telescopic cylinder 81, so as to drive the telescopic cylinder 81 to rotate; a second motor 83 is provided in the telescopic cylinder 81, and the second motor 83 is coaxially connected to a screw 84, and the screw 84 is rotatably connected in the telescopic cylinder 81; a slider 85 is threadedly connected to the screw 84, and a plurality of guide rods 86 are installed on the slider 85, and the ends of the guide rods 86 are connected to the telescopic rod 82; a connecting hole is provided at the end of the connecting clamp 7, and when the rotary drilling cover 42 is in a closed state, the telescopic rod 82 can be inserted into the connecting hole to drive the connecting clamp 7 to rotate.

[0046] During implementation, inside the telescopic cylinder 81, the second motor 83 drives the screw 84 to rotate. Since the slider 85 is threadedly connected to the screw 84, the slider 85 will move along the axial direction of the screw 84, thereby driving the guide rod 86 and the telescopic rod 82 to extend and retract. When the rotary drilling cover 42 is in the closed state, the bottom end of the telescopic rod 82 can be inserted into the connecting hole on the connecting clamp 7 and connected to the connecting clamp 7; starting the first motor 9, due to the connection between the telescopic rod 82 and the connecting hole, the connecting clamp 7 will rotate accordingly, thereby driving the second cover plate 422 and the rotary drill bit 5111 that may be directly installed at the bottom of the second cover plate 422 to rotate together; if the rotary drill bit 5111 is installed on the threaded hole 71 of the connecting clamp 7, the rotation of the connecting clamp 7 will also directly drive the rotary drill bit 5111 to operate. At the same time, the rotation of the drive shaft 2 can drive the cylinder 41 to rotate, which can effectively crush the rock and quickly crush the isolated rock into segments. The crushed rock and soil enter the cavity through the opening, thereby achieving the purpose of rapid drilling.

[0047] As a preferred embodiment, Figure 5 and Figure 6 As shown, a connecting block 4212 is provided on the first cover plate 421, and a locking hole 4213 is formed in the connecting block 4212. A hook 4214 is provided on the inner wall of the cylinder 41. The hook 4214 can be inserted into or removed from the locking hole 4213. When the hook 4214 is inserted into the locking hole 4213 and connected to the connecting block 4212, the rotary cover 42 is closed. When the hook 4214 is removed from the locking hole 4213, the rotary cover 42 is opened, and the soil in the cavity can be dumped or shoveled out.

[0048] Furthermore, if Figure 6 As shown, a first connecting rod 101 is provided in the cylinder 41, and the first connecting rod 101 is hinged to the second connecting rod 102. The end of the second connecting rod 102 is connected to the hook 4214. A cylinder 103 is provided on the mounting plate 52, and the cylinder 103 is connected to the push rod 104. The push rod 104 is used to connect with the first connecting rod 101.

[0049] The push rod 104 applies a thrust to the first connecting rod 101 to change its angle, and this change is transmitted to the second connecting rod 102 through the hinge point, and the second connecting rod 102 moves accordingly. The bottom end of the second connecting rod 102 is connected to the hook 4214, and the angle of the hook 4214 also changes accordingly. In the initial state, the hook 4214 is connected to the clamping hole 4213 to keep the rotary cover 42 in a closed state; however, as the angle of the hook 4214 changes, the hook 4214 will gradually disengage from the clamping hole 4213, thereby separating the rotary cover 42 from the cylinder 41; at this time, the soil in the cylinder 41 can be cleaned out. After cleaning, the rotary cover 42 is closed, and the hook 4214 is re-extended into the clamping hole 4213, ready for the next drilling operation.

[0050] In a possible embodiment, the second connecting rod 102 can also be extended out of the cylinder 41. By manually moving the second connecting rod 102, the position of the second connecting rod 102 changes, thereby driving the angle of the hook 4214 to change. As the second connecting rod 102 moves, the hook 4214 will gradually disengage from the clamping hole 4213, thereby realizing the separation of the rotary drilling cover 42 and the cylinder 41; compared with the above embodiment, the structure of this embodiment is more compact.

[0051] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by those skilled in the art based on the present invention shall fall within the protection scope of the present invention.

Claims

1. A pile foundation drilling equipment, characterized in that: include: A drilling rig (1), a drive shaft (2) and a rotary drilling barrel (3), wherein the drive shaft (2) is rotatably connected to the drilling rig (1), and the drive shaft (2) is coaxially connected to the rotary drilling barrel (3); The rotary drilling barrel drill (3) comprises a rotary drilling barrel member (4), the rotary drilling barrel member (4) comprises a barrel body (41) and a rotary drilling cover (42), a hollow cavity is formed in the barrel body (41), and the rotary drilling cover (42) is provided with at least one opening communicating with the cavity; The rotary drilling cover (42) is arranged on the cylinder (41) in an openable and closable manner. A rotary drill bit (5111) and at least one cutting tooth (6) are provided at the bottom of the rotary drilling cover (42). The rotary drill bit (5111) is rotatably connected to the rotary drilling cover (42).

2. The pile foundation drilling equipment according to claim 1, characterized in that: The rotary drilling cover (42) comprises a first cover plate (421) and a second cover plate (422), wherein the first cover plate (421) is hinged to the cylinder (41), and the second cover plate (422) is rotatably connected to the first cover plate (421), and the rotary drill bit (5111) and each of the cutting teeth (6) are mounted on a side of the second cover plate (422) facing away from the first cover plate (421).

3. The pile foundation drilling equipment according to claim 2, characterized in that: A first mounting hole (4211) is provided in the middle of the first cover plate (421), a connecting clamp (7) is provided in the first mounting hole (4211), and the connecting clamp (7) is rotatably connected to the first cover plate (421). A second mounting hole (4221) is provided on the second cover plate (422), and an end portion of the connecting clamp (7) passes through the second mounting hole (4221) and is fixedly connected to the second cover plate (422).

4. The pile foundation drilling equipment according to claim 3, characterized in that: A threaded hole (71) is provided at one end of the connecting clamp (7), and the rotary drill bit (5111) is mounted on the connecting clamp (7) through the threaded hole (71).

5. The pile foundation drilling equipment according to claim 4, characterized in that: The rotary drilling barrel drill (3) includes a connecting member (5), and the connecting member (5) includes a connecting barrel (51) and a mounting plate (52). The mounting plate (52) is fixedly arranged in the connecting barrel (51). The bottom end of the connecting barrel (51) is coaxially connected to the barrel body (41), and the top end of the connecting barrel (51) is coaxially connected to the drive shaft (2).

6. The pile foundation drilling equipment according to claim 5, characterized in that: A telescopic member (8) is rotatably connected in the connecting cylinder (51), and the bottom end of the telescopic member (8) passes through the cylinder (41) and extends into the cavity; The telescopic member (8) comprises a telescopic cylinder (81) and a telescopic rod (82), wherein the telescopic rod (82) is movable along the length direction of the telescopic cylinder (81); A first motor (9) is provided on the mounting plate (52), and the first motor (9) is connected to the telescopic cylinder (81) and is used to drive the telescopic cylinder (81) to rotate.

7. The pile foundation drilling equipment according to claim 6, characterized in that: A second motor (83) is provided in the telescopic cylinder (81), the second motor (83) is coaxially connected to a screw rod (84), a slider (85) is threadedly connected to the screw rod (84), and a plurality of guide rods (86) are mounted on the slider (85), and the ends of the guide rods (86) are connected to the telescopic rod (82).

8. The pile foundation drilling equipment according to claim 7, characterized in that: A connecting hole is provided at the end of the connecting clamp (7), and the telescopic rod (82) can extend into the connecting hole to drive the connecting clamp (7) to rotate.

9. The pile foundation drilling equipment according to claim 5, characterized in that: A connecting block (4212) is provided on the first cover plate (421), a latching hole (4213) is provided on the connecting block (4212), and a hook (4214) is provided on the cylinder (41), and the hook (4214) can extend into the latching hole (4213) or detach from the latching hole (4213).

10. The pile foundation drilling equipment according to claim 9, characterized in that: A first connecting rod (101) is provided in the cylinder (41), the first connecting rod (101) is hingedly connected to a second connecting rod (102), and the end of the second connecting rod (102) is connected to the hook (4214); A cylinder (103) is provided on the mounting plate (52), and the cylinder (103) is connected to a push rod (104), and the push rod (104) is used to connect to the first connecting rod (101).

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