Coal building construction pile forming equipment and method and pile structure

Abstract

The invention provides coal building construction pile forming equipment and method and a pile structure, and belongs to the technical field of coal construction. The coal building construction pile forming equipment comprises a bearing frame, a moving frame, a rotating ring, a driving mechanism, a main drilling machine, an auxiliary drilling machine and a push-pull mechanism; the bearing frame is provided with an avoiding hole and a lifting mechanism. The moving frame is installed on the lifting mechanism and provided with a long-strip-shaped hole, a first annular groove, a second annular groove and a clamping assembly. The rotating ring is mounted in the first annular groove, and a transmission part is arranged on the rotating ring; the driving mechanism is installed on the moving frame and connected with the transmission part, the main drilling machine is in sliding fit connection with the moving frame and provided with an external expansion mechanism, and the auxiliary drilling machine is fixedly connected with the lower end of the rotating ring and provided with an external expansion mechanism; the push-pull mechanism is installed on the moving frame and connected with the main drilling machine. The push-pull mechanism is used for driving the main drilling machine to avoid the center position of the long-strip-shaped hole. According to the coal building construction pile forming equipment, the pile forming efficiency is high, and the stability and safety of a pile foundation are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of coal construction, and more specifically, relates to a pile-forming device, method and pile structure for coal building construction. Background Art

[0002] Coal construction refers to various types of engineering construction activities carried out during the mining and utilization of coal resources. These activities include mine construction, tunneling, ground facility construction, etc., covering the entire process from coal resource exploration, mining to transportation and processing. The complexity and diversity of coal construction require the use of a variety of engineering technologies and equipment to ensure the efficiency and safety of construction. In order to ensure safety during coal mining, it is necessary to pile under the ground in the construction area to ensure that the construction area has a stable foundation structure with high bearing capacity to adapt to complex geological conditions and special foundation requirements and environmental protection. At present, in the process of underground piling, multiple process steps and a variety of equipment are required to complete the construction of the pile foundation. The steps are cumbersome and inefficient; at the same time, the bearing capacity of the formed piles is insufficient, resulting in safety hazards. Summary of the invention

[0003] The purpose of the present invention is to provide a pile-forming device, method and pile structure for coal building construction, so as to solve the technical problems existing in the prior art that the pile-forming steps are complicated and inefficient, and the bearing capacity of the bored piles is insufficient, thus posing a potential safety hazard.

[0004] To achieve the above object, the technical solution adopted by the present invention is: to provide a coal building construction pile forming equipment, comprising:

[0005] A load-bearing frame is installed on the construction area; a avoidance hole is opened on the load-bearing frame, a lifting mechanism is provided on the load-bearing frame, and the lifting mechanism is arranged at an interval from the avoidance hole;

[0006] A movable frame is installed on the lifting mechanism and has the freedom to move up and down; the movable frame is provided with an elongated hole and a first annular groove and a second annular groove arranged around the elongated hole, the first annular groove is opened on the upper end surface of the movable frame, the second annular groove is opened on the lower end surface of the movable frame, and the first annular groove and the second annular groove correspond to each other and are connected up and down; the width of the first annular groove is greater than the width of the second annular groove; the movable frame is provided with a clamping assembly located on one side of the elongated hole;

[0007] A rotating ring is installed in the first annular groove and is rotatably connected with the moving frame; a transmission part is provided on the rotating ring;

[0008] A driving mechanism, mounted on the moving frame and connected to the transmission part, for driving the rotating ring to rotate;

[0009] The main drilling rig has its upper end installed in the long hole and is connected to the mobile frame in a sliding manner; an external expansion mechanism is provided on the drill rod of the main drilling rig;

[0010] The auxiliary drilling rig has an upper end located in the second annular groove and fixedly connected to the lower end of the rotating ring; an external expansion mechanism is provided on the drill rod of the auxiliary drilling rig;

[0011] The push-pull mechanism is installed on the mobile frame and connected to the main drilling machine, and is used to drive the main drilling machine to avoid the center position of the long hole.

[0012] In a possible implementation, the mobile frame includes:

[0013] An outer frame connected to the lifting mechanism; an inner wall of the outer frame has a stepped surface;

[0014] The inner block is mounted on the inner wall of the outer frame, and an accommodation distance is provided between the outer wall and the inner wall of the outer frame; the outer wall of the inner block has a stepped surface, and the accommodation distance forms the first annular groove and the second annular groove arranged up and down; the elongated hole is opened on the inner block;

[0015] A connecting rod is installed above the outer frame and the inner block; the connecting rod is in an inverted U-shape, and both ends are fixedly connected to the upper end surface of the outer frame and the upper end surface of the inner block respectively.

[0016] In a possible implementation, a mounting groove connected to the first annular groove is provided on the inner wall of the outer frame, and a connecting hole extending downward and connected to the mounting groove is provided on the upper end surface; the driving mechanism includes a transmission gear and a driving motor, the transmission gear is installed in the mounting groove and is rotatably connected to the outer frame; the driving motor is installed at the upper end of the outer frame, and the output shaft of the driving motor is passed through the connecting hole and is connected to the transmission gear; the transmission part is a gear tooth structure meshingly connected to the transmission gear.

[0017] In a possible implementation, the inner block is provided with two receiving grooves located on the inner wall of the elongated hole, and the receiving grooves correspond to the center of the elongated hole, and the two receiving grooves are symmetrically arranged; the inner block is also provided with two fixing mechanisms respectively installed in the receiving grooves, and the fixing mechanism includes a driving assembly and a clamp, the driving assembly is fixedly installed in the receiving groove, the clamp is slidably connected in the receiving groove, and one end is fixedly connected to the free end of the driving assembly; the other end of the clamp is provided with an arc groove adapted to the outer wall of the main drilling rig.

[0018] In a possible implementation, a guide groove located on one side of the long hole is provided at the upper end of the movable frame, and a guide block slidably connected to the guide groove is provided on the main drilling rig; a support plate located above the first annular groove is provided on the movable frame, the push-pull mechanism is installed on the support plate, a first connecting piece is provided on the free end of the push-pull mechanism, and a second connecting piece detachably connected to the first connecting piece is provided on the main drilling rig.

[0019] In a possible implementation, the outward expansion mechanism includes a slider, a fixed block, a first rotating rod, a second rotating rod, a driver and a blocking sleeve; a working chamber is provided in the drill rod of the main drilling rig and the drill rod of the auxiliary drilling rig, and an inlet and outlet connected to the working chamber are provided on the outer wall; the slider, the first rotating rod, the second rotating rod and the driver are all installed in the working chamber, and the first rotating rod and the second rotating rod correspond to the inlet and outlet; the driver and the slider are located above the inlet and outlet, and the fixed block is located below the inlet and outlet; the first rotating rod and the second rotating rod are arranged up and down, and the first rotating rod and the second rotating rod are hinged, the upper end of the first rotating rod is hinged to the slider, and the lower end of the second rotating rod is hinged to the fixed block; a sliding groove is provided at the top of the inlet and outlet, and the blocking sleeve is installed in the sliding groove and has the freedom to move up and down in the sliding groove, and the blocking sleeve is used to block the inlet and outlet.

[0020] In a possible implementation, the carrier frame includes a main frame, running wheels installed on the rear side of the main frame, and hydraulic legs installed on the front side of the main frame. The lifting mechanism is installed on the main frame, and the avoidance hole is opened on the main frame and is located between the running wheels and the hydraulic legs. The front side of the main frame is also provided with a connecting end for connecting to a power machine.

[0021] The beneficial effects of the coal building construction pile forming equipment provided by the present invention are as follows: compared with the prior art, the coal building construction pile forming equipment of the present invention, when working, drives the carrying frame to move to the top of the construction area, starts the lifting mechanism to control the moving frame to move upward, and installs auxiliary drilling machines on the moving frame respectively, the upper end of the auxiliary drilling machine is located in the second annular groove and is connected to the rotating ring; starts the lifting mechanism, the auxiliary drilling machine and the external expansion mechanism to drill holes in the area to be piled and form a first pile hole, and controls the rotating ring to rotate on the moving frame by starting the driving mechanism to form a plurality of first pile holes arranged in an annular manner; installs a main drilling machine on the moving frame and the upper end of the main drilling machine penetrates into the long strip hole, and the main drilling machine is slidably connected to the moving frame; removes the auxiliary drilling machine and installs a pouring hose at the lower end of the rotating ring, and the pouring hose is used to pour concrete into the first pile hole; starts the lifting mechanism, the main drilling machine and the external expansion mechanism to drill holes in the area to be piled Drilling and forming a second pile hole; at the same time, the pouring hose pours concrete into the first pile hole; starting the push-pull mechanism to drive the main drilling rig to move in the long hole, so that the main drilling rig and the second pile hole are arranged alternately; and using a crane to hoist the central column from top to bottom into the long hole, and using the clamping assembly to clamp on the central column; starting the lifting mechanism to drive the central column into the second pile hole; the outer diameter of the central column is smaller than the inner diameter of the second pile hole; controlling the pouring hose to penetrate downward from the long hole, and pouring concrete into the gap between the second pile hole and the central column; in this way, the pile foundation formed includes two parts, with a large coverage area, so that a pile foundation with multiple concrete columns is formed in the construction area, with strong bearing performance and high safety; and the use of the lifting mechanism, the rotating ring, the driving mechanism and the prefabricated central column, etc., makes the pile forming efficiency of the pile forming equipment higher, and improves the stability and safety of the pile foundation.

[0022] Another object of the present invention is to provide a method for piling in coal building construction, comprising the above-mentioned piling equipment for coal building construction; and further comprising:

[0023] S1: driving the support frame to move to the top of the construction area, and the avoidance hole corresponds to the area to be piled up and down;

[0024] S2: Start the lifting mechanism to control the mobile frame to move upward, and install auxiliary drilling machines on the mobile frames respectively, the upper ends of the auxiliary drilling machines are located in the second annular groove and connected to the rotating ring; start the lifting mechanism, the auxiliary drilling machine and the external expansion mechanism to drill holes in the area to be piled and form a first pile hole, and start the driving mechanism to control the rotating ring to rotate on the mobile frame to form a plurality of first pile holes arranged in an annular manner;

[0025] S3: Install a main drilling rig on the mobile frame and insert the upper end of the main drilling rig into the long hole, and the main drilling rig is slidably connected to the mobile frame; remove the auxiliary drilling rig and install a pouring hose at the lower end of the rotating ring, the pouring hose is used to pour concrete into the first pile hole; start the lifting mechanism, the main drilling rig and the external expansion mechanism to drill a hole in the area to be piled and form a second pile hole; at the same time, the pouring hose pours concrete into the first pile hole;

[0026] S4: starting the push-pull mechanism to drive the main drilling rig to move in the long hole, so that the main drilling rig and the second pile hole are arranged alternately; using a crane to hoist the central column from top to bottom into the long hole, and using the clamping assembly to clamp the central column; starting the lifting mechanism to drive the central column into the second pile hole; the outer diameter of the central column is smaller than the inner diameter of the second pile hole;

[0027] S5: Control the pouring hose to penetrate downward from the long hole, and pour concrete into the gap between the second pile hole and the central column.

[0028] In a possible implementation, in step S3, the bottom of the second pile hole is expanded to form an expanded hole, and the diameter of the expanded hole is two to three times the diameter of the second pile hole; before the central column is hoisted by a crane in step S4, the expanded hole is pre-cast with concrete using the casting hose, and the central column is installed in the second pile hole before the concrete in the expanded hole hardens; the lower end of the central column enters the concrete of the expanded hole, and the clamping assembly acts on the central column to make the center line of the central column perpendicular to the horizontal plane.

[0029] The method for piling in coal construction provided by the present invention adopts a piling device for coal construction. Therefore, the pile foundation arranged in the construction area includes two parts, one is a main pile body formed by a central column and concrete, and the other is a plurality of auxiliary pile bodies arranged around the main pile body, so that the bearing capacity of the entire pile foundation is strong. In addition, during the construction process, the efficiency of the piling operation achieved by the bearing frame, the lifting mechanism, the mobile frame, the rotating ring, the main drilling rig and the auxiliary drilling rig is high.

[0030] Another object of the present invention is to provide a pile structure, comprising:

[0031] The main pile body is used to be arranged under the ground; the main pile body comprises a bottom casting body, a central column and a cylindrical casting body, the lower end of the cylindrical casting body is fixedly mounted on the central column, the central column is mounted on the cylindrical casting body and is fixedly connected to the bottom casting body; the outer wall of the cylindrical casting body is provided with a plurality of expansion parts for inserting into the soil body;

[0032] There are multiple auxiliary pile bodies, which are arranged around the main pile body; the auxiliary pile bodies are arranged in parallel with the main pile body, and the lower ends of the auxiliary pile bodies are connected to the bottom casting body; the outer sides of the auxiliary pile bodies are provided with multiple expansion parts for inserting into the soil body.

[0033] The beneficial effects of the pile structure provided by the present invention are as follows: compared with the prior art, the pile structure of the present invention, by means of a plurality of auxiliary pile bodies arranged around the main pile body, makes the pile structure bearing capacity of the area to be piled higher; and the strength of the central column on the main pile body is greater than that of the bottom casting body, the cylindrical casting body and the auxiliary pile body, so that the main pile body can withstand higher pressure, etc. And under the action of the auxiliary pile body, the force of the area to be piled can be effectively dispersed, and the safety is higher. In a construction area, multiple areas to be piled are arranged, and each area to be piled is arranged with a main pile body and multiple auxiliary pile bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0035] Figure 1 A schematic diagram of the structure of a pile forming device for coal construction provided by an embodiment of the present invention;

[0036] Figure 2 A schematic diagram of the connection between the mobile frame, the main drilling rig and the auxiliary drilling rig provided in an embodiment of the present invention;

[0037] Figure 3 A top view of a pile forming device for coal construction provided by an embodiment of the present invention;

[0038] Figure 4 A cross-sectional view of a mobile rack provided by an embodiment of the present invention;

[0039] Figure 5 A schematic diagram of the structure of the auxiliary drilling rig and the reaming mechanism provided in an embodiment of the present invention;

[0040] Figure 6 Schematic diagram of the use of the coal construction pile forming equipment provided by the embodiment of the present invention Figure 1 ;

[0041] Figure 7 Schematic diagram of the use of the coal construction pile forming equipment provided by the embodiment of the present invention Figure 2 ;

[0042] Figure 8A schematic structural diagram of a pile structure provided in an embodiment of the present invention.

[0043] Among them, the reference numerals in the figure are:

[0044] 10. Carrying frame; 11. Avoidance hole; 12. Lifting mechanism; 13. Main frame; 14. Traveling wheels; 15. Hydraulic legs; 16. Clamping assembly;

[0045] 20. Mobile frame; 21. Long strip hole; 22. First annular groove; 23. Second annular groove; 24. Outer frame; 25. Inner block; 251. Accommodating groove; 26. Connecting rod; 27. Mounting groove; 28. Connecting hole; 29. ​​Support plate;

[0046] 30. rotating ring; 31. transmission part;

[0047] 40. driving mechanism; 41. transmission gear; 42. driving motor;

[0048] 50. Main drilling machine; 51. Outward expansion mechanism; 52. Second connecting member; 53. Sliding block; 54. Fixed block; 55. First rotating rod; 56. Second rotating rod; 57. Driver; 58. Blocking sleeve;

[0049] 60. Auxiliary drilling machine; 61. Working chamber; 62. Inlet and outlet;

[0050] 70. Push-pull mechanism; 71. first connecting member; 72. first pile hole; 73. second pile hole; 74. expansion hole;

[0051] 80. fixing mechanism; 81. driving assembly; 82. clamping hoop;

[0052] 90. Main pile body; 91. Bottom cast body; 92. Center column; 93. Cylindrical cast body; 94. Auxiliary pile body. DETAILED DESCRIPTION

[0053] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0054] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0055] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0056] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0057] See also Figures 1 to 8 , the coal construction pile forming equipment provided by the present invention is now described. A coal construction pile forming equipment includes a bearing frame 10, a moving frame 20, a rotating ring 30, a driving mechanism 40, a main drilling rig 50, an auxiliary drilling rig 60 and a push-pull mechanism 70; the bearing frame 10 is installed on the construction area; an avoidance hole 11 is opened on the bearing frame 10, and a lifting mechanism 12 is provided on the bearing frame 10, and the lifting mechanism 12 is arranged at intervals from the avoidance hole 11; the moving frame 20 is installed on the lifting mechanism 12, and has the freedom to move up and down; the moving frame 20 is provided with a long hole 21 and a first annular groove 22 and a second annular groove 23 arranged around the long hole 21, the first annular groove 22 is opened on the upper end surface of the moving frame 20, and the second annular groove 23 is opened on the lower end surface of the moving frame 20, and the first annular groove 22 and the second annular groove 23 correspond to each other and are connected up and down; the width of the first annular groove 22 is greater than the width of the second annular groove 22. The width of the annular groove 23; the mobile frame 20 is provided with a clamping assembly 16 located on one side of the elongated hole 21; the rotating ring 30 is installed in the first annular groove 22 and is rotatably connected with the mobile frame 20; a transmission part 31 is provided on the rotating ring 30; the driving mechanism 40 is installed on the mobile frame 20 and is connected with the transmission part 31, and is used to drive the rotating ring 30 to rotate; the upper end of the main drilling rig 50 is installed in the elongated hole 21 and is slidably connected with the mobile frame 20; an external expansion mechanism 51 is provided on the drill rod of the main drilling rig 50; the upper end of the auxiliary drilling rig 60 is located in the second annular groove 23 and is fixedly connected with the lower end of the rotating ring 30; an external expansion mechanism 51 is provided on the drill rod of the auxiliary drilling rig 60; the push-pull mechanism 70 is installed on the mobile frame 20 and is connected with the main drilling rig 50, and is used to drive the main drilling rig 50 to avoid the center position of the elongated hole 21.

[0058] Compared with the prior art, the coal construction pile forming equipment provided by the present invention is as follows: when working, the supporting frame 10 is driven to move to the top of the construction area, the lifting mechanism 12 is started to control the moving frame 20 to move upward, and the auxiliary drilling machine 60 is respectively installed on the moving frame 20, the upper end of the auxiliary drilling machine 60 is located in the second annular groove 23 and is connected to the rotating ring 30; the lifting mechanism 12, the auxiliary drilling machine 60 and the external expansion mechanism 51 are started to drill a hole in the area to be piled and form a first pile hole 72, and the driving mechanism 40 is started to control the moving frame 20 to move upward, and the auxiliary drilling machine 60 is installed on the moving frame 20. The rotating ring 30 is controlled to rotate on the mobile frame 20 to form a plurality of first pile holes 72 arranged in a ring shape; the main drilling machine 50 is installed on the mobile frame 20, and the upper end of the main drilling machine 50 is inserted into the long hole 21, and the main drilling machine 50 is slidably connected with the mobile frame 20; the auxiliary drilling machine 60 is removed and a pouring hose is installed at the lower end of the rotating ring 30, and the pouring hose is used to pour concrete into the first pile hole 72; the lifting mechanism 12, the main drilling machine 50 and the external expansion mechanism 51 are started to drill holes in the area to be piled and form the second pile hole 73 ; At the same time, the pouring hose pours concrete into the first pile hole 72; the push-pull mechanism 70 is started to drive the main drilling rig 50 to move in the long hole 21, so that the main drilling rig 50 and the second pile hole 73 are arranged alternately; and the central column 92 is hoisted from top to bottom into the long hole 21 by a crane, and is clamped on the central column 92 by a clamping assembly 16; the lifting mechanism 12 is started to drive the central column 92 into the second pile hole 73; the outer diameter of the central column 92 is smaller than the inner diameter of the second pile hole 73; the pouring hose is controlled Penetrate downward from the long hole 21, and pour concrete into the gap between the second pile hole 73 and the central column 92; in this way, the formed pile foundation includes two parts and covers a large area, so that a pile foundation with multiple concrete columns is formed in the construction area, with strong bearing capacity and high safety; and the use of the lifting mechanism 12, the rotating ring 30, the driving mechanism 40 and the prefabricated central column 92, etc., makes the pile forming equipment have a high pile forming efficiency and improves the stability and safety of the pile foundation.

[0059] The second pile hole 73 contains a main pile body 90 , and the first pile holes 72 contain auxiliary pile bodies 94 . The auxiliary pile bodies 94 are used to strengthen and combine the main pile body 90 .

[0060] See also Figures 1 to 4As a specific embodiment of the coal construction pile forming equipment provided by the present invention, the mobile frame 20 includes an outer frame 24, an inner block 25 and a connecting rod 26, the outer frame 24 is connected to the lifting mechanism 12; the inner wall of the outer frame 24 has a stepped surface; the inner block 25 is installed on the inner wall of the outer frame 24, and an accommodation spacing is provided between the outer wall and the inner wall of the outer frame 24; the outer wall of the inner block 25 has a stepped surface, and the accommodation spacing forms a first annular groove 22 and a second annular groove 23 arranged up and down; the long strip hole 21 is opened on the inner block 25; the connecting rod 26 is installed above the outer frame 24 and the inner block 25; the connecting rod 26 is in an inverted U-shape, and the two ends are fixedly connected to the upper end surface of the outer frame 24 and the upper end surface of the inner block 25 respectively; the inner block 25 is located inside the outer frame 24, and has a certain accommodation spacing between it and the inner wall of the outer frame 24. A connecting rod 26 is arranged on the upper side of the outer frame 24 and the inner block 25. The connecting rod 26 is a U-shaped rod and is installed upside down, so that the two ends of the connecting rod 26 are fixedly connected to the upper end surfaces of the outer frame 24 and the inner block 25 respectively, so that the outer frame 24 and the inner block 25 are fixedly connected together, ensuring that the rotating ring 30 rotates smoothly between the outer frame 24 and the inner block 25. Stepped surfaces are provided on the inner wall of the outer frame 24 and the outer wall of the inner block 25, so that the rotating ring 30 is stably installed in the first annular groove 22. A bearing is provided on the outer side surface of the inner block 25, and the rotating ring 30 is installed in cooperation with the bearing.

[0061] See also Figure 1 , Figure 2 and Figure 4 As a specific embodiment of the pile forming equipment for coal construction provided by the present invention, a mounting groove 27 connected to the first annular groove 22 is provided on the inner wall of the outer frame 24, and a connecting hole 28 extending downward and connected to the mounting groove 27 is provided on the upper end surface; the driving mechanism 40 includes a transmission gear 41 and a driving motor 42, the transmission gear 41 is installed in the mounting groove 27 and is rotatably connected to the outer frame 24; the driving motor 42 is installed at the upper end of the outer frame 24, and the output shaft of the driving motor 42 is penetrated in the connecting hole 28 and connected to the transmission gear 41; the transmission part 31 is a gear structure meshingly connected with the transmission gear 41; the mounting groove 27 is connected to the first annular groove 22, the transmission gear 41 is installed in the mounting groove 27, and the driving motor 42 is installed on the upper end surface of the outer frame 24, and the output shaft of the driving motor 42 passes through the connecting hole 28 and is connected to the transmission gear 41, so that the transmission gear 41 can be driven to rotate; the transmission gear 41 is meshingly connected with the gear structure, so that the rotating ring 30 can rotate stably and accurately.

[0062] See also Figure 1 , Figure 2 and Figure 4As a specific embodiment of the coal building construction pile forming equipment provided by the present invention, two receiving grooves 251 are provided on the inner block 25, and the receiving grooves 251 correspond to the center of the long hole 21, and the two receiving grooves 251 are symmetrically arranged; the inner block 25 is also provided with two fixing mechanisms 80 respectively installed in the receiving grooves 251, and the fixing mechanism 80 includes a driving component 81 and a clamp 82, the driving component 81 is fixedly installed in the receiving groove 251, the clamp 82 is slidably connected in the receiving groove 251, and one end is fixedly connected to the free end of the driving component 81; the other end of the clamp 82 is provided with an arc groove adapted to the outer wall of the main drilling rig 50; the receiving grooves 251 are provided on the inner walls on both sides of the long hole 21, and the fixing mechanism 80 is provided in the receiving groove 251, and the central column 92 can be fixed by means of the fixing mechanism 80, so that the central column 92 can smoothly enter the second pile hole 73 in the ground. After using a crane to lift the center column 92 to the top of the long hole 21, pass the center column 92 through the long hole 21 so that the upper end of the center column 92 corresponds to the fixing mechanism 80; start the driving assembly 81 to control the clamping hoop 82 to slide outward, so that the two clamping hoops 82 are clamped and held on the center column 92, thereby achieving a fixed connection between the mobile frame 20 and the center column 92. Finally, start the lifting mechanism 12 to control the mobile frame 20 to move downward, so that the center column 92 is accurately installed in the second pile hole 73. In this way, the center column 92 is accurately installed, which is convenient for subsequent pouring operations; and the clamping assembly 16 and the fixing mechanism 80 are used together, so that the clamping of the center column 92 is more stable. The structure of the clamping assembly 16 is the same as that of the fixing mechanism 80, and they correspond one to another.

[0063] See also Figure 1 and Figure 2As a specific embodiment of the coal construction pile forming equipment provided by the present invention, a guide groove is provided on the upper end of the mobile frame 20 at one side of the long hole 21, and a guide block is provided on the main drilling rig 50 that is slidably connected to the guide groove; a support plate 29 is provided on the mobile frame 20 that is located above the first annular groove 22, and a push-pull mechanism 70 is installed on the support plate 29, and a first connecting member 71 is provided on the free end of the push-pull mechanism 70, and a second connecting member 52 that is detachably connected to the first connecting member 71 is provided on the main drilling rig 50; that is, when the main drilling rig 50 is installed on the mobile frame 20, the main drilling rig 50 is installed from top to bottom, and the drill rod of the main drilling rig 50 passes through the long hole 21 and is located below the mobile frame 20; the end of the main drilling rig 50 is installed on the mobile frame 20, and the guide block on the main drilling rig 50 is installed in the guide groove to realize the sliding connection between the main drilling rig 50 and the mobile frame 20. The support plate 29 is arranged to span the top of the first annular groove 22, and is arranged in an interlaced manner with the rotating ring 30, so that no mutual interference occurs. The push-pull mechanism 70 is installed on the support plate 29, and corresponds to the end of the main drilling machine 50, so that the push-pull mechanism 70 can accurately act on the main drilling machine 50. The first connecting member 71 and the second connecting member 52 are arranged as electromagnetic elements connected to each other, and a strong magnetic force can be generated by a power supply to make the first connecting member 71 and the second connecting member 52 firmly fixed together. Specifically, the first connecting member 71 is a ferromagnetic member, and the second connecting member 52 is an electromagnet. When working, the push-pull mechanism 70 is started to control the first connecting member 71 to be connected with the second connecting member 52, and then the power supply is started to make the second connecting member 52 have a strong magnetic force, so that the first connecting member 71 and the second connecting member 52 are fixedly connected by means of magnetic force, and then the push-pull mechanism 70 is used to drive the main drilling machine 50 to move to one side of the long hole 21.

[0064] See also Figure 2 and Figure 5As a specific embodiment of the coal construction pile forming equipment provided by the present invention, the expansion mechanism 51 includes a slider 53, a fixed block 54, a first rotating rod 55, a second rotating rod 56, a driver 57 and a blocking sleeve 58; a working chamber 61 is provided in the drill rod of the main drilling rig 50 and the drill rod of the auxiliary drilling rig 60, and an inlet and outlet 62 connected to the working chamber 61 is provided on the outer wall. The slider 53, the first rotating rod 55, the second rotating rod 56, and the driver 57 are all installed in the working chamber 61, and the first rotating rod 55 and the second rotating rod 56 correspond to the inlet and outlet 62; the driver 57 and the slider 53 are located above the inlet and outlet 62, and the fixed block 54 is located below the inlet and outlet 62; the first rotating rod 55 and the second rotating rod 56 are arranged up and down, and the first rotating rod 55 and The second rotating rod 56 is hinged, the upper end of the first rotating rod 55 is hinged to the slider 53, and the lower end of the second rotating rod 56 is hinged to the fixed block 54; a slide groove is opened at the top of the inlet and outlet 62, and the blocking sleeve 58 is installed in the slide groove and has the freedom to move up and down in the slide groove. The blocking sleeve 58 is used to block the inlet and outlet 62; a working chamber 61 is set inside the drill pipe of the main drilling rig 50 and the drill pipe of the auxiliary drilling rig 60, and the driver 57, the slider 53, the first rotating rod 55, the second rotating rod 56 and the fixed block 54 are arranged in the working chamber 61 in sequence, and the free end of the driver 57 is connected to the slider 53, thereby driving the slider 53 to slide up and down in the working chamber 61, and the fixed block 54 is located at the bottom of the working chamber 61 and has a certain distance between it and the slider 53. The first rotating rod 55 and the second rotating rod 56 are installed between the slider 53 and the fixed block 54, and the upper end of the first rotating rod 55 is hinged to the slider 53, the lower end of the second rotating rod 56 is connected to the fixed block 54, and the lower end of the first rotating rod 55 is hinged to the upper end of the second rotating rod 56. When the main drilling machine 50 or the auxiliary drilling machine 60 is working normally, the driver 57 is started to control the slider 53 to move upward, so that the first rotating rod 55 and the second rotating rod 56 move toward the inside of the working chamber 61, and the first rotating rod 55 and the second rotating rod 56 are retracted into the working chamber 61. After the main drilling machine 50 or the auxiliary drilling machine 60 drills a certain depth, when the hole of the depth needs to be expanded 74, the driver 57 is started to control the slider 53 to move downward, so that the first rotating rod 55 and the second rotating rod 56 move outward by virtue of the hinge performance of the first rotating rod 55 and the second rotating rod 56, thereby increasing the drilling diameter of the drill rod. There are two first rotating rods 55 and two second rotating rods 56, and the two first rotating rods 55 are symmetrically arranged, and the two second rotating rods 56 are symmetrically arranged. A rotating shaft is arranged at the upper end of the second rotating rod 56, and a rotating hole for matching with the rotating shaft is arranged on the first rotating rod 55, and a protrusion for drilling a hole is arranged on the outer side surface of the lower end of the first rotating shaft.

[0065] At the same time, an inlet and outlet 62 is provided on the outer surface of the drill rod, and the inlet and outlet 62 is connected to the working chamber 61; a slide groove is provided on the top of the inlet and outlet 62, and a blocking sleeve 58 for closing the inlet and outlet 62 is installed in the slide groove, so that the blocking sleeve 58 can be controlled to move in the slide groove, and the inlet and outlet 62 can be opened or closed with the help of the blocking sleeve 58. In particular, the blocking sleeve 58 closes the inlet and outlet 62 during the working process of the drill rod. An electric push rod or the like is provided on the drill rod for driving the blocking sleeve 58 to move up and down.

[0066] See also Figure 1 , Figure 6 and Figure 7 As a specific embodiment of the pile-forming equipment for coal construction provided by the present invention, the bearing frame 10 includes a main frame 13, a running wheel 14 installed on the rear side of the main frame 13, and a hydraulic leg 15 installed on the front side of the main frame 13. The lifting mechanism 12 is installed on the main frame 13, and the avoidance hole 11 is opened on the main frame 13 and is located between the running wheel 14 and the hydraulic leg 15; the front side of the main frame 13 is also provided with a connecting end for connecting to a power machine; the main function of the bearing frame 10 is to install and support the entire pile-forming equipment, so that the entire pile-forming equipment can be carried out stably and safely. The lifting mechanism 12 is fixedly installed on the main frame 13 and is located outside the avoidance hole 11; two lifting mechanisms 12 are set, which are respectively installed on both sides of the avoidance hole 11. The hydraulic legs 15 and the running wheels 14 are respectively installed on the front and rear sides of the main frame 13. With the help of the hydraulic legs 15, the bearing frame 10 at the lower end of the working state can be firmly fixed on the ground to work. When the entire pile-forming device needs to be moved, the hydraulic legs 15 are retracted and fixed to the connecting ends on the main frame 13 using a traction machine, so that the entire pile-forming device can be quickly moved to the next construction area with the help of the traveling wheels 14 .

[0067] See also Figures 1 to 8, the embodiment of the present invention also provides a method for piling in coal construction, the method for piling in coal construction includes any one of the above-mentioned piling equipment for coal construction, and also includes S1: driving the carrier frame 10 to move to the top of the construction area, and the avoidance hole 11 corresponds to the area to be piled up and down; S2: starting the lifting mechanism 12 to control the mobile frame 20 to move upward, and installing auxiliary drilling machines 60 on the mobile frame 20 respectively, the upper end of the auxiliary drilling machine 60 is located in the second annular groove 23 and is connected to the rotating ring 30; starting the lifting mechanism 12, the auxiliary drilling machine 60 and the expansion mechanism 51 to drill holes in the area to be piled and form a first pile hole 72, and by starting the driving mechanism 40 to control the rotating ring 30 to rotate on the mobile frame 20 to form a plurality of first pile holes 72 arranged in a ring; S3: installing the main drilling machine 50 on the mobile frame 20 and the upper end of the main drilling machine 50 is inserted into the long hole 21, and the main drilling machine 50 and the mobile frame 2 0 sliding connection; disassemble the auxiliary drilling machine 60 and install a pouring hose at the lower end of the rotating ring 30, the pouring hose is used to pour concrete into the first pile hole 72; start the lifting mechanism 12, the main drilling machine 50 and the expansion mechanism 51 to drill a hole in the waiting pile area and form a second pile hole 73; at the same time, the pouring hose pours concrete into the first pile hole 72; S4: start the push-pull mechanism 70 to drive the main drilling machine 50 to move in the long hole 21, so that the main drilling machine 50 and the second pile hole 73 are arranged alternately; and use the crane to hoist the central column 92 from top to bottom into the long hole 21, and use the clamping assembly 16 to clamp it on the central column 92; start the lifting mechanism 12 to drive the central column 92 to enter the second pile hole 73; the outer diameter of the central column 92 is smaller than the inner diameter of the second pile hole 73; S5: control the pouring hose to penetrate downward from the long hole 21, and pour concrete into the gap between the second pile hole 73 and the central column 92.

[0068] The method for piling in coal construction provided by the embodiment of the present invention adopts the above-mentioned piling equipment for coal construction, so the pile foundation arranged in the construction area includes two parts, one is a main pile body 90 formed by a central column 92 and concrete, and the other is a plurality of auxiliary pile bodies 94 arranged around the main pile body 90, so that the bearing capacity of the entire pile foundation is strong. In addition, during the construction process, the efficiency of the piling operation achieved by the bearing frame 10, the lifting mechanism 12, the moving frame 20, the rotating ring 30, the main drilling machine 50 and the auxiliary drilling machine 60 is high.

[0069] See also Figure 6 and Figure 7As a specific embodiment of the method for forming piles in coal construction provided by the present invention, in step S3, the bottom of the second pile hole 73 is expanded to form an expanded hole 74, and the diameter of the expanded hole 74 is two to three times the diameter of the second pile hole 73; before the central column 92 is hoisted by a crane in step S4, the expanded hole 74 is pre-cast with concrete using a pouring hose, and the central column 92 is installed in the second pile hole 73 before the concrete in the expanded hole 74 hardens; the lower end of the central column 92 enters the concrete of the expanded hole 74 The central column 92 is placed in the concrete, and the clamping assembly 16 acts on the central column 92 so that the center line of the central column 92 is perpendicular to the horizontal plane; an expansion hole 74 extending radially outward is formed at the bottom of the second pile hole 73, so that after pouring concrete in the second pile hole 73, the bottom area of ​​the main pile body 90 is larger and the stability is higher; at the same time, the central column 92 is added to the second pile hole 73 before the concrete hardens, so that the lower end of the central column 92 enters the interior of the concrete in the expansion hole 74, so that the connection between the central column 92 and the concrete is more secure.

[0070] See also Figures 6 to 8 The embodiment of the present invention further provides a pile structure, including a main pile body 90 and an auxiliary pile body 94, wherein the main pile body 90 is used to be set under the ground; the main pile body 90 includes a bottom casting body 91, a central column 92 and a cylindrical casting body 93, wherein the lower end of the cylindrical casting body 93 is fixedly mounted on the central column 92, the central column 92 is mounted on the cylindrical casting body 93, and is fixedly connected to the bottom casting body 91; a plurality of extension parts for inserting into the soil are provided on the outer wall of the cylindrical casting body 93; the number of the auxiliary pile bodies 94 is plural, and they are arranged around the main pile body 90; the auxiliary pile bodies 94 are arranged in parallel with the main pile body 90, and the lower ends of the auxiliary pile bodies 94 are connected to the bottom casting body 91.

[0071] Compared with the prior art, the pile structure provided by the present invention has a higher bearing capacity of the pile structure in the area to be piled by virtue of the arrangement of multiple auxiliary pile bodies 94 around the main pile body 90; and the strength of the central column 92 on the main pile body 90 is greater than the bottom casting body 91, the cylindrical casting body 93 and the auxiliary pile body 94, so that the main pile body 90 can withstand higher pressure, etc. And under the action of the auxiliary pile body 94, the force of the area to be piled can be effectively dispersed, and the safety is higher. In a construction area, multiple areas to be piled are arranged, and each area to be piled is arranged with a main pile body 90 and multiple auxiliary pile bodies 94.

[0072] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pile-forming equipment for coal construction, characterized in that: include: A load-bearing frame is installed on the construction area; a avoidance hole is opened on the load-bearing frame, a lifting mechanism is provided on the load-bearing frame, and the lifting mechanism is arranged at an interval from the avoidance hole; A movable frame is installed on the lifting mechanism and has the freedom to move up and down; the movable frame is provided with an elongated hole and a first annular groove and a second annular groove arranged around the elongated hole, the first annular groove is opened on the upper end surface of the movable frame, the second annular groove is opened on the lower end surface of the movable frame, and the first annular groove and the second annular groove correspond to each other and are connected up and down; the width of the first annular groove is greater than the width of the second annular groove; the movable frame is provided with a clamping assembly located on one side of the elongated hole; A rotating ring is installed in the first annular groove and is rotatably connected with the moving frame; a transmission part is provided on the rotating ring; A driving mechanism, mounted on the moving frame and connected to the transmission part, for driving the rotating ring to rotate; The main drilling rig has its upper end installed in the long hole and is connected to the mobile frame in a sliding manner; an external expansion mechanism is provided on the drill rod of the main drilling rig; The auxiliary drilling rig has an upper end located in the second annular groove and fixedly connected to the lower end of the rotating ring; an external expansion mechanism is provided on the drill rod of the auxiliary drilling rig; The push-pull mechanism is installed on the mobile frame and connected to the main drilling machine, and is used to drive the main drilling machine to avoid the center position of the long hole.

2. The coal building construction pile forming equipment according to claim 1, characterized in that: The mobile frame comprises: An outer frame connected to the lifting mechanism; an inner wall of the outer frame has a stepped surface; The inner block is mounted on the inner wall of the outer frame, and an accommodation distance is provided between the outer wall and the inner wall of the outer frame; the outer wall of the inner block has a stepped surface, and the accommodation distance forms the first annular groove and the second annular groove arranged up and down; the elongated hole is opened on the inner block; A connecting rod is installed above the outer frame and the inner block; the connecting rod is in an inverted U-shape, and both ends are fixedly connected to the upper end surface of the outer frame and the upper end surface of the inner block respectively.

3. The pile-forming equipment for coal construction as claimed in claim 2, characterized in that: The inner wall of the outer frame is provided with a mounting groove connected to the first annular groove, and the upper end surface is provided with a connecting hole extending downward and connected to the mounting groove; the driving mechanism includes a transmission gear and a driving motor, the transmission gear is installed in the mounting groove and is rotatably connected to the outer frame; the driving motor is installed at the upper end of the outer frame, and the output shaft of the driving motor is passed through the connecting hole and is connected to the transmission gear; the transmission part is a gear tooth structure meshing with the transmission gear.

4. The coal building construction pile forming equipment according to claim 2, characterized in that: The inner block is provided with two receiving grooves located on the inner wall of the elongated hole, and the receiving grooves correspond to the center of the elongated hole, and the two receiving grooves are symmetrically arranged; the inner block is also provided with two fixing mechanisms respectively installed in the receiving grooves, and the fixing mechanisms include a driving assembly and a clamp, the driving assembly is fixedly installed in the receiving groove, the clamp is slidably connected in the receiving groove, and one end is fixedly connected to the free end of the driving assembly; the other end of the clamp is provided with an arc groove adapted to the outer wall of the main drilling rig.

5. The coal building construction pile forming equipment according to claim 1, characterized in that: The upper end of the movable frame is provided with a guide groove located on one side of the long hole, and the main drilling rig is provided with a guide block slidably connected to the guide groove; the movable frame is provided with a support plate located above the first annular groove, the push-pull mechanism is installed on the support plate, the free end of the push-pull mechanism is provided with a first connecting piece, and the main drilling rig is provided with a second connecting piece detachably connected to the first connecting piece.

6. The pile-forming equipment for coal construction as claimed in claim 1, characterized in that: The outward expansion mechanism includes a slider, a fixed block, a first rotating rod, a second rotating rod, a driver and a blocking sleeve; a working chamber is provided in the drill rod of the main drilling rig and the drill rod of the auxiliary drilling rig, and an inlet and outlet connected to the working chamber are provided on the outer wall; the slider, the first rotating rod, the second rotating rod and the driver are all installed in the working chamber, and the first rotating rod and the second rotating rod correspond to the inlet and outlet; the driver and the slider are located above the inlet and outlet, and the fixed block is located below the inlet and outlet; the first rotating rod and the second rotating rod are arranged up and down, and the first rotating rod and the second rotating rod are hinged, the upper end of the first rotating rod is hinged to the slider, and the lower end of the second rotating rod is hinged to the fixed block; a sliding groove is provided at the top of the inlet and outlet, and the blocking sleeve is installed in the sliding groove and has the freedom to move up and down in the sliding groove, and the blocking sleeve is used to block the inlet and outlet.

7. The pile-forming equipment for coal construction as claimed in claim 1, characterized in that: The carrier frame includes a main frame, running wheels installed on the rear side of the main frame, and hydraulic legs installed on the front side of the main frame. The lifting mechanism is installed on the main frame. The avoidance hole is opened on the main frame and is located between the running wheels and the hydraulic legs. The front side of the main frame is also provided with a connecting end for connecting to a power machine.

8. A method for piling in coal construction, characterized in that: The invention comprises the coal building construction pile forming equipment as claimed in any one of claims 1 to 7, and further comprises: S1: driving the support frame to move to the top of the construction area, and the avoidance hole corresponds to the area to be piled up and down; S2: Start the lifting mechanism to control the mobile frame to move upward, and install auxiliary drilling machines on the mobile frames respectively, the upper ends of the auxiliary drilling machines are located in the second annular groove and connected to the rotating ring; start the lifting mechanism, the auxiliary drilling machine and the external expansion mechanism to drill holes in the area to be piled and form a first pile hole, and start the driving mechanism to control the rotating ring to rotate on the mobile frame to form a plurality of first pile holes arranged in an annular manner; S3: Install a main drilling rig on the mobile frame and insert the upper end of the main drilling rig into the long hole, and the main drilling rig is slidably connected to the mobile frame; remove the auxiliary drilling rig and install a pouring hose at the lower end of the rotating ring, the pouring hose is used to pour concrete into the first pile hole; start the lifting mechanism, the main drilling rig and the external expansion mechanism to drill a hole in the area to be piled and form a second pile hole; at the same time, the pouring hose pours concrete into the first pile hole; S4: starting the push-pull mechanism to drive the main drilling rig to move in the long hole, so that the main drilling rig and the second pile hole are arranged alternately; using a crane to hoist the central column from top to bottom into the long hole, and using the clamping assembly to clamp the central column; starting the lifting mechanism to drive the central column into the second pile hole; the outer diameter of the central column is smaller than the inner diameter of the second pile hole; S5: Control the pouring hose to penetrate downward from the long hole, and pour concrete into the gap between the second pile hole and the central column.

9. The method for piling in coal construction as claimed in claim 8, characterized in that: In step S3, the bottom of the second pile hole is expanded to form an expanded hole, and the diameter of the expanded hole is two to three times the diameter of the second pile hole; before the central column is hoisted by a crane in step S4, the expanded hole is pre-cast with concrete using the casting hose, and the central column is installed in the second pile hole before the concrete in the expanded hole hardens; the lower end of the central column enters the concrete of the expanded hole, and the clamping assembly acts on the central column to make the center line of the central column perpendicular to the horizontal plane.

10. A pile structure, characterized in that: include: The main pile body is used to be arranged under the ground; the main pile body comprises a bottom casting body, a central column and a cylindrical casting body, the lower end of the cylindrical casting body is fixedly mounted on the central column, the central column is mounted on the cylindrical casting body and is fixedly connected to the bottom casting body; the outer wall of the cylindrical casting body is provided with a plurality of expansion parts for inserting into the soil body; There are multiple auxiliary pile bodies, which are arranged around the main pile body; the auxiliary pile bodies are arranged in parallel with the main pile body, and the lower ends of the auxiliary pile bodies are connected to the bottom casting body; the outer sides of the auxiliary pile bodies are provided with multiple expansion parts for inserting into the soil body.

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