Pump suction type reverse circulation drilling machine for pile foundation construction

Abstract

The utility model discloses a pump suction type reverse circulation drilling machine for pile foundation construction, which relates to the technical field of circulation drilling machines, and comprises a mounting plate and a plurality of mounting holes, and further comprises a drilling mechanism arranged on the mounting plate and used for drilling; the pump suction mechanism is arranged on the drilling mechanism, and the pump suction mechanism comprises a mounting part arranged on the drilling mechanism; the number of the mounting grooves is multiple, and the multiple mounting grooves are formed in the mounting piece; the slag suction pump is arranged in the mounting groove; the auxiliary pump is arranged in the mounting groove; the double-head connector is arranged on the slag suction pump; the first pipeline is arranged between the double-end connector and the auxiliary pump; and the first connecting pipeline is arranged on the auxiliary pump. According to the device, by arranging the pumping mechanism, when the device is deeply drilled, the deep hole deslagging efficiency can be improved through the combined action of pumping and jet flow through a double-pump linkage circulating system.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of rotary drilling rig, especially relates to a pump suction type reverse circulation drilling rig for pile construction. BACKGROUND

[0002] The pump suction type reverse circulation drilling rig is a commonly used equipment for pile construction, and the core is to form a circulating deslagging system through pumping action, in work, the drill bit rotates and crushes rock and soil, the mud is under the pumping force, forms reverse circulation through the drill rod central hole and the drill bit bottom suction port, and the mixture of slag and mud is pumped to the ground sedimentation tank, and the mud flows back into the hole after sedimentation, and the cycle guarantees the drilling efficiency and the hole wall stability, and the advantages are that the deslagging capacity is strong, the hole forming precision is high, and the pump suction type reverse circulation drilling rig is suitable for various strata such as clay and sand, especially in deep hole construction, and the efficiency is remarkable, and the pump suction type reverse circulation drilling rig is important equipment for pile construction of bridges, buildings and other engineering, and the high-efficiency hole forming operation is realized through the combination of mechanical and fluid mechanics principles. SUMMARY

[0003] In view of the defects in the prior art, the utility model aims at providing a pump suction type reverse circulation drilling rig for pile construction, which aims at solving the technical problem of insufficient suction of the pump suction type reverse circulation drilling rig in deep hole construction.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A pump suction type reverse circulation drilling rig for pile construction, comprising a mounting plate and a mounting hole, the mounting hole has a plurality of mounting holes, and further comprising:

[0006] A drilling mechanism is arranged on the mounting plate and is used for drilling work;

[0007] A pumping mechanism is arranged on the drilling mechanism and is used for pumping work, and the pumping mechanism comprises:

[0008] A mounting part is arranged on the drilling mechanism and is used for component mounting;

[0009] A plurality of mounting grooves are arranged on the mounting part and are used for component mounting;

[0010] A slag suction pump is arranged in the mounting groove and is used for slag suction work;

[0011] An auxiliary pump is arranged in the mounting groove and is used for auxiliary slag suction work;

[0012] A double-head connector is arranged on the slag suction pump and is used for component connection;

[0013] A first pipe is arranged between the double-head connector and the auxiliary pump, and is used to connect the sludge suction pump and the auxiliary pump.

[0014] A first connecting pipe is arranged on the auxiliary pump, and is used to connect external pipes.

[0015] Preferably, the pump suction mechanism further comprises:

[0016] A mud separation device is arranged in the mounting groove, and is used for mud separation.

[0017] A second pipe is arranged between the double-head connector and the mud separation device, and is used to connect the sludge suction pump and the mud separation device.

[0018] Preferably, the mud separation device comprises:

[0019] An outer shell is arranged in the mounting groove, and is fixedly connected with the mounting groove.

[0020] A cyclone separator is arranged on the outer shell, and is used for coarse separation of mud.

[0021] Two vibration motors are arranged in the outer shell, and are fixedly connected with the outer shell.

[0022] A second connecting pipe is arranged on the outer shell, and is used to connect external pipes.

[0023] Preferably, the mud separation device further comprises:

[0024] A vibrating sieve plate is arranged on the vibration motor, and is fixedly connected with the vibration motor.

[0025] A plurality of vibration springs are arranged on the vibrating sieve plate, and are fixedly connected with the vibrating sieve plate.

[0026] Preferably, the drilling mechanism comprises:

[0027] A mounting frame is arranged on the mounting plate, and is fixedly connected with the mounting plate.

[0028] Two hydraulic cylinders are arranged on the mounting frame, and are fixedly connected with the mounting frame.

[0029] A lifting member is arranged on the mounting frame, and is fixedly connected with the mounting frame.

[0030] Preferably, the drilling mechanism further comprises:

[0031] A driving assembly is arranged on the mounting member, and is used to provide power.

[0032] A rotating shaft is arranged on the driving assembly, and is used for drill bit installation.

[0033] Preferably, the slag suction pump is a high-flow centrifugal pump, and the auxiliary pump is a high-pressure plunger pump.

[0034] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0035] 1. By setting up a pump suction mechanism, this device can improve the efficiency of deep hole slag removal through the combined action of "pump suction and jet" in the process of deep drilling, and is especially suitable for deep holes and complex formations.

[0036] 2. This device can process mud by setting up a pump suction mechanism. Through the dual filtration of cyclone separation and vibrating screen plate, the slag content of the mud is effectively reduced, and it can be recycled to save mud costs. Attached Figure Description

[0037] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 A three-dimensional structural schematic diagram of a pump-suction reverse circulation drilling rig for pile foundation construction is shown.

[0039] Figure 2 An exploded view of the drilling mechanism is shown.

[0040] Figure 3 An exploded view of the pump suction mechanism is shown.

[0041] Figure 4 A partial cross-sectional view of the mud separation device is shown.

[0042] Figure 5 A three-dimensional structural schematic diagram of some components in the mud separation device is shown.

[0043] Legend:

[0044] 1. Mounting plate; 2. Mounting hole; 3. Mounting component; 4. Mounting groove; 5. Slag suction pump; 6. Auxiliary pump; 7. Double-ended connector; 8. First pipe; 9. Second pipe; 10. First connecting pipe; 11. Housing; 12. Hydrocyclone separator; 13. Vibration motor; 14. Vibrating screen plate; 15. Vibration spring; 16. Mounting bracket; 17. Hydraulic cylinder; 18. Lifting component; 19. Drive assembly; 20. Rotating shaft; 21. Second connecting pipe. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0046] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0049] Reference Figures 1 to 5 The present invention provides a further description of an embodiment of a pump-suction reverse circulation drilling rig for pile foundation construction.

[0050] A pump-suction reverse circulation drilling rig for pile foundation construction includes a mounting plate 1 and mounting holes 2, wherein the mounting holes 2 have multiple holes. It also includes a drilling mechanism disposed on the mounting plate 1 for drilling operations; a pump-suction mechanism disposed on the drilling mechanism for pump-suction operations. The pump-suction mechanism includes: a mounting component 3 disposed on the drilling mechanism for component installation; multiple mounting slots 4 disposed on the mounting component 3 for component installation; a slag suction pump 5 disposed in the mounting slots 4 for slag suction operations; an auxiliary pump 6 disposed in the mounting slots 4 for assisting slag suction operations; a double-headed connector 7 disposed on the slag suction pump 5 for component connection; a first pipe 8 disposed between the double-headed connector 7 and the auxiliary pump 6 for connecting the slag suction pump 5 and the auxiliary pump 6; and a first connecting pipe 10 disposed on the auxiliary pump 6 for external pipe connection.

[0051] refer to Figure 3 and Figure 5 In a preferred embodiment, the pump suction mechanism further includes: a mud separation device disposed in the mounting groove 4 for mud separation; and a second pipe 9 disposed between the double-ended connector 7 and the mud separation device for connecting the slag suction pump 5 and the mud separation device.

[0052] In this configuration, the slag suction pump 5 is a high-flow centrifugal pump capable of quickly suctioning mud, and the auxiliary pump 6 is a high-pressure plunger pump capable of pressurizing. The two are linked and controlled by a frequency converter. When the drilling depth exceeds 50m, the auxiliary booster pump automatically starts to enhance the suction power. The first connecting pipe 10 is used for the external high-pressure pipe, which can be connected to the pipe of the jet nozzle on the drill bit to form a combined cycle of pump suction and jet. The mounting component 3 can slide on the lifting component 18.

[0053] refer to Figure 4 and Figure 5 In a preferred embodiment, the mud separation device includes: a housing 11 disposed in and fixedly connected to the mounting groove 4; a cyclone separator 12 disposed on the housing 11 for coarse mud separation; two vibration motors 13 disposed in and fixedly connected to the housing 11; and a second connecting pipe 21 disposed on the housing 11 for connecting to an external pipe.

[0054] refer to Figure 5 In a preferred embodiment, the mud separation device further includes: a vibrating screen plate 14, which is disposed on the vibrating motor 13 and fixedly connected to the vibrating motor 13; and multiple vibrating springs 15, which are disposed on the vibrating screen plate 14 and fixedly connected to the vibrating screen plate 14.

[0055] refer to Figure 1 and Figure 2 In a preferred embodiment, the drilling mechanism includes: a mounting frame 16, which is disposed on the mounting plate 1 and fixedly connected to the mounting plate 1; two hydraulic cylinders 17, which are disposed on the mounting frame 16 and fixedly connected to the mounting frame 16; and a lifting member 18, which is disposed on the mounting frame 16 and fixedly connected to the mounting frame 16.

[0056] refer to Figure 1 and Figure 2 In a preferred embodiment, the drilling mechanism further includes: a drive assembly 19, disposed on the mounting member 3, for providing power; and a rotating shaft 20, disposed on the drive assembly 19, for mounting the drill bit.

[0057] In this configuration, the first connecting pipe 10 is used to connect to an external return pipe, through which the filtered mud is returned to the borehole; the vibrating motor 13 is used to provide power to make the vibrating screen plate 14 vibrate, thereby accelerating the filtration of the mud; and the hydrocyclone separator 12 is used to separate large particles of mud.

[0058] This device, by incorporating a pump suction mechanism, enhances deep-hole slag removal efficiency through a dual-pump linkage circulation system that combines pump suction and jet flow during deep drilling. It is particularly suitable for deep holes and complex formations. The pump suction mechanism also allows for mud treatment; through cyclone separation and dual filtration by the vibrating screen plate 14, the slag content of the mud is effectively reduced, enabling recycling and saving on mud costs.

[0059] Working principle: When in use, this device is installed on a tracked vehicle via mounting plate 1 and mounting hole 2, and the drill bit is mounted on rotating shaft 20. During drilling, the drive assembly 19 drives rotating shaft 20 and drill bit to rotate, and the hydraulic cylinder 17 and the lifting function of the mounting part 3 are used to carry out underground drilling. During the operation, the mud is sucked out by the slag suction pump 5 and enters the first pipe 8 and the second pipe 9 through the double-head connector 7. The mud enters the auxiliary pump 6 through the first pipe 8 and is connected to the high-pressure pipe through the first connecting pipe 10. The high-pressure pipe is connected to the jet nozzle on the outside of the drill bit to form a combined cycle of pump suction and jet. The mud enters the mud separation device through the second pipe 9. First, the large particles of mud are separated by the hydrocyclone separator 12, and then the small particles are filtered by the vibrating screen plate 14 driven by the vibrating motor 13. Finally, the filtered mud is returned to the borehole through the return pipe connected to the second connecting pipe 21.

[0060] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pump-suction reverse circulation drilling rig for pile foundation construction, comprising a mounting plate (1) and mounting holes (2), wherein the mounting holes (2) are plurality of holes, characterized in that, Also includes: A drilling mechanism is mounted on the mounting plate (1) and is used for drilling operations; A pumping mechanism, disposed on the drilling mechanism, is used for pumping operations. The pumping mechanism includes: Mounting component (3) is disposed on the drilling mechanism for component installation; The mounting slots (4) are multiple, and the multiple mounting slots (4) are disposed on the mounting member (3) for component mounting; A slag suction pump (5) is installed in the mounting slot (4) for slag suction work; An auxiliary pump (6) is installed in the mounting slot (4) to assist in the slag suction operation; A double-ended connector (7) is provided on the slag suction pump (5) for component connection; The first pipe (8) is located between the double-ended connector (7) and the auxiliary pump (6) for connecting the slag suction pump (5) and the auxiliary pump (6). The first connecting pipe (10) is installed on the auxiliary pump (6) for connecting to an external pipe.

2. The pump-suction reverse circulation drilling rig for pile foundation construction according to claim 1, characterized in that, The pump suction mechanism also includes: A mud separation device is installed in the mounting groove (4) for mud separation; The second pipe (9) is located between the double-ended connector (7) and the mud separation device, and is used to connect the sludge suction pump (5) and the mud separation device.

3. The pump-suction reverse circulation drilling rig for pile foundation construction according to claim 2, characterized in that, The mud separation device includes: The outer casing (11) is disposed in the mounting groove (4) and is fixedly connected to the mounting groove (4); A hydrocyclone separator (12) is disposed on the outer shell (11) for coarse separation of mud; Two vibration motors (13) are provided, and the two vibration motors (13) are disposed inside the housing (11) and fixedly connected to the housing (11); The second connecting pipe (21) is disposed on the outer casing (11) for connecting to an external pipe.

4. The pump-suction reverse circulation drilling rig for pile foundation construction according to claim 3, characterized in that, The mud separation device also includes: A vibrating screen plate (14) is mounted on the vibrating motor (13) and is fixedly connected to the vibrating motor (13); There are multiple vibration springs (15), and multiple vibration springs (15) are disposed on the vibrating screen plate (14) and fixedly connected to the vibrating screen plate (14).

5. A pump-suction reverse circulation drilling rig for pile foundation construction according to claim 4, characterized in that, The drilling mechanism includes: Mounting bracket (16) is disposed on the mounting plate (1) and fixedly connected to the mounting plate (1); Two hydraulic cylinders (17) are provided, and the two hydraulic cylinders (17) are mounted on the mounting bracket (16) and fixedly connected to the mounting bracket (16); The lifting component (18) is mounted on the mounting frame (16) and is fixedly connected to the mounting frame (16).

6. A pump-suction reverse circulation drilling rig for pile foundation construction according to claim 5, characterized in that, The drilling mechanism also includes: A drive assembly (19), disposed on the mounting (3), is used to provide power; A rotating shaft (20) is mounted on the drive assembly (19) for mounting the drill bit.

7. A pump-suction reverse circulation drilling rig for pile foundation construction according to claim 6, characterized in that, The slag suction pump (5) is a high-flow centrifugal pump, and the auxiliary pump (6) is a high-pressure plunger pump.

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