Bridge pile foundation drilling device

Abstract

The utility model discloses a bridge pile foundation drilling device, which relates to the technical field of pile foundation drilling equipment and comprises a drilling machine base, a drilling machine frame fixed on the surface of the top of the drilling machine base and a drill rod lifting machine arranged on the front side of the drilling machine frame and moving up and down. And a drill bit cleaning component is arranged at the bottom of the front side surface of the drilling machine rack, a motor is fixed to the front side surface of the drill rod lifting machine, a drill rod is installed at the output end of the motor through a coupler, and the drill rod penetrates through the interior of the drill bit cleaning component. According to the utility model, the drill bit cleaning part sleeved on the outer surface of the drill rod is arranged on the front side of the drilling machine rack, the silt loosening agent in the outer-layer water tank is pushed by the air pump to be sprayed to the surface of the drill rod, and then clear water is conveyed into the spray head on the intersection pipe through the water pump and the pipe fitting, so that the pre-cleaning and the conventional cleaning after the drill rod is pulled out are realized; and the drill rod has certain cleanliness after being unearthed, and meanwhile, silt and the like can be prevented from being attached to the drill rod to corrode the drill rod.

Description

Technical Field

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

[0002] The construction of cast-in-place piles is to first make a pile hole in the soil manually or mechanically, then put the pile body steel cage into the pile hole, pour concrete into the hole to form a pile, and finally cast a tie beam or a cap on the top of the pile. The main methods of bored pile hole formation include: rotary drilling rig hole formation, forward and reverse circulation drilling rig hole formation, casing drilling rig hole formation, impact drilling rig hole formation, etc. The rotary drilling rig hole formation is driven by the drill rod to rotate the drill bit. The power drill bit can drill at a low speed when it rotates forward, and it can throw soil at a high speed when it rotates reversely. The drill bit rotates to cut the soil or sand into slag, and then quickly pull it out of the hole.

[0003] When using a rotary drilling rig to drill holes for bridge pile foundations, the spiral drill rod goes deep into the ground, and after the drill rod is pulled out, there is a lot of dirt and gravel attached to its surface. In addition, due to the special shape of the spiral drill rod and its long length, when cleaning it, it is often necessary to remove the drill rod and use a sharp object to dig out the dirt, and then rinse it. However, the current drilling machine does not have the ability to clean the drill rod, resulting in an additional process for manual cleaning of the drill rod. Utility Model Content

[0004] The embodiment of the utility model provides a bridge pile foundation drilling device to solve the deficiencies mentioned in the background technology.

[0005] In order to solve the drawbacks and defects described in the background technology, the utility model provides the following technical solutions:

[0006] A bridge pile foundation drilling device comprises a drilling machine base, a drilling machine frame fixed on the top surface of the drilling machine base, and a drill rod elevator arranged on the front side of the drilling machine frame and movable up and down, and a drill cleaning component is arranged on the bottom of the front side surface of the drilling machine frame, a motor is fixed on the front side surface of the drill rod elevator, a drill rod is installed on the output end of the motor through a coupling, and the drill rod passes through the inside of the drill bit cleaning component;

[0007] The drill cleaning component includes a cleaning ring mechanism fixed to the front surface of the drilling machine frame and sleeved on the outer ring of the drill rod, and a water storage tank and a water pump fixed to the upper surface of the drilling machine base, wherein the delivery end of the water pump is connected to the cleaning ring mechanism;

[0008] The cleaning ring mechanism includes an outer water tank, an inner sleeve fixed in the inner circle of the outer water tank, and six pre-wash nozzles arranged in a circular array are fixed on the inner cavity of the outer water tank, and the other end of the pre-wash nozzle passes through the interior of the inner sleeve; and six alloy nozzles are passed through the top of the outer ring surface of the inner sleeve in a circular array, and the liquid inlet end of the alloy nozzle is penetrated by a junction pipe, and the interior of the junction pipe is connected to the delivery end of the water pump.

[0009] As a preferred solution of the utility model, the liquid inlet end of the water pump is connected to a water suction pipe that penetrates into the water tank through a pipe joint, and a liquid inlet is provided on the side wall of the water tank. The liquid infusion end of the water pump is connected to a water supply pipe through a pipe joint, and the end of the water supply pipe away from the water pump penetrates into the inner cavity of the intersection pipe.

[0010] As a preferred solution of the utility model, the interior of the outer water tank is filled with a sediment loosening agent, and a liquid replenishing port is provided on the upper surface of the outer water tank, and a rubber plug is provided inside the liquid replenishing port by screwing it with a thread.

[0011] As a preferred solution of the utility model, the intersection pipe is in an annular shape as a whole and the interior of the intersection pipe is hollow, so as to allow water to flow into the alloy nozzle.

[0012] As a preferred solution of the utility model, the upper and lower layers of the outer ring surface of the inner sleeve are both provided with six circular holes in an annular array for the pre-wash nozzle and the alloy nozzle to pass through.

[0013] As a preferred solution of the utility model, an air pump is fixed on the top surface of the outer water tank, and an air pipe penetrating into the inner cavity of the outer water tank is fixed to the air delivery port of the air pump through a pipe joint.

[0014] As a preferred solution of the utility model, two fixing rods are fixed to the outer ring surface of the inner casing, and one end of the fixing rod away from the inner casing is fixedly connected to the front side surface of the drilling machine frame.

[0015] As a preferred solution of the utility model, the inner cavity side wall of the inner casing, and the ports of the alloy nozzle and the pre-wash nozzle have a gap of 4cm-7cm with the outer surface of the drill pipe.

[0016] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0017] In the utility model, a drill cleaning component is arranged on the front side of a drilling machine frame and is sleeved on the outer surface of a drill rod. An air pump is used to push a sediment loosening agent in an outer water tank to spray onto the surface of the drill rod. Clean water is then transported to a nozzle on the intersection pipe through a water pump and pipe fittings, thereby achieving pre-washing and positive washing of the drill rod after it is pulled out. While ensuring that the drill rod has a certain degree of cleanliness after being unearthed, sediment and the like can be prevented from adhering to the drill rod and corroding it. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present invention, and do not constitute a limitation of the present invention. In the drawings:

[0019] Figure 1 It is the overall structural schematic diagram of the pile foundation drilling machine;

[0020] Figure 2 This is a schematic diagram of the drill cleaning components on the front side of the drilling machine;

[0021] Figure 3 This is a schematic diagram of the drill cleaning component after cutting.

[0022] Description of reference numerals:

[0023] 1. Drilling machine base; 2. Drill bit cleaning parts; 21. Water storage tank; 22. Water suction pipe; 23. Water pump; 24. Water supply pipe; 25. Fixed rod; 26. Cleaning ring mechanism; 261. Outer water tank; 262. Inner casing; 263. Pre-wash nozzle; 264. Air pipe; 265. Air pump; 266. Alloy nozzle; 267. Junction pipe; 268. Fluid replenishment port; 3. Drill rod elevator; 4. Drilling machine frame; 5. Motor. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in combination with the implementation mode and the accompanying drawings. Here, the schematic implementation mode of the utility model and its description are used to explain the utility model, but are not used as a limitation of the utility model.

[0025] Refer to the instruction manual Figure 1 To Attachment Figure 3As shown, a bridge pile foundation drilling device includes a drilling machine base 1, a drilling machine frame 4 fixed on the top surface of the drilling machine base 1, and a drill rod elevator 3 arranged on the front side of the drilling machine frame 4 and movable up and down, and a drill bit cleaning component 2 is arranged at the bottom of the front side surface of the drilling machine frame 4, a motor 5 is fixed on the front side surface of the drill rod elevator 3, and the output end of the motor 5 is installed with a drill rod through a coupling, and the drill rod passes through the inside of the drill bit cleaning component 2; the drill bit cleaning component 2 includes a cleaning ring mechanism 26 fixed on the front side surface of the drilling machine frame 4 and sleeved on the outer ring of the drill rod, and a water tank 21 and a water pump 23 fixed on the upper surface of the drilling machine base 1, wherein the delivery end of the water pump 23 is connected with the cleaning ring mechanism 26.

[0026] The cleaning ring mechanism 26 includes an outer water tank 261, an inner sleeve 262 fixed in the inner circle of the outer water tank 261, and six pre-wash nozzles 263 arranged in a circular array are fixed on the inner cavity of the outer water tank 261, and the other end of the pre-wash nozzle 263 passes through the interior of the inner sleeve 262; and six alloy nozzles 266 are passed through the top of the outer ring surface of the inner sleeve 262 in a circular array, and the liquid inlet end of the alloy nozzle 266 is passed through a junction pipe 267, and the interior of the junction pipe 267 is connected to the delivery end of the water pump 23.

[0027] The liquid inlet end of the water pump 23 is connected to the water pump pipe 22 inserted into the water storage tank 21 through a pipe joint, and a liquid inlet is provided on the side wall of the water storage tank 21. The liquid infusion end of the water pump 23 is connected to the water supply pipe 24 through a pipe joint, and the end of the water supply pipe 24 away from the water pump 23 penetrates into the inner cavity of the intersection pipe 267. The interior of the outer water tank 261 is filled with a sediment loosening agent, and the upper surface of the outer water tank 261 is provided with a liquid replenishment port 268, and the interior of the liquid replenishment port 268 is provided with a rubber plug screwed by a thread.

[0028] The intersection pipe 267 is generally annular and the interior of the intersection pipe 267 is hollow, which is used for water to flow into the alloy nozzle 266. The upper and lower layers of the outer ring surface of the inner sleeve 262 are both provided with six circular holes in a circular array for the pre-wash nozzle 263 and the alloy nozzle 266 to pass through.

[0029] An air pump 265 is fixed on the top surface of the outer water tank 261, and an air pipe 264 penetrating into the inner cavity of the outer water tank 261 is fixed to the air delivery port of the air pump 265 through a pipe joint. Two fixing rods 25 are fixed to the outer ring surface of the inner sleeve 262, and one end of the fixing rod 25 away from the inner sleeve 262 is fixedly connected to the front side surface of the drilling machine frame 4. The inner cavity side wall of the inner sleeve 262, as well as the ports of the alloy nozzle 266 and the pre-wash nozzle 263, have a gap of 4cm-7cm with the outer surface of the drill pipe.

[0030] According to the above-mentioned preferred technical solution, the workflow of the technical solution is described as follows:

[0031] After the drill rod finishes drilling the pile foundation, the drill rod on the output end of the motor 5 is lifted upward by the cooperation of the drill rod lifter 3 and the drilling machine frame 4, and then the air pump 265 and the air pipe 264 are used to fill the inner cavity of the outer water tank 261 with air. Under the pressure of the air, the sediment loosening agent solution inside the outer water tank 261 will enter the pre-washing nozzle 263 and spray the solution on the surface of the drill rod. Then, the clean water inside the water storage tank 21 is discharged to the intersection pipe 267 through the water supply pipe 24 and the water pump 22 through the water pump 23, and the clean water is diverted from the intersection pipe 267 to the alloy nozzle 266 to wash the sediment on the surface of the drill rod.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A bridge pile foundation drilling device, characterized in that: The invention comprises a drilling machine base (1), a drilling machine frame (4) fixed on the top surface of the drilling machine base (1), and a drill rod lifter (3) arranged on the front side of the drilling machine frame (4) and movable up and down, wherein a drill bit cleaning component (2) is arranged on the bottom of the front side surface of the drilling machine frame (4), a motor (5) is fixed on the front side surface of the drill rod lifter (3), a drill rod is installed on the output end of the motor (5) via a coupling, and the drill rod passes through the interior of the drill bit cleaning component (2); The drill cleaning component (2) comprises a cleaning ring mechanism (26) fixed to the front surface of the drilling machine frame (4) and sleeved on the outer ring of the drill rod, and a water storage tank (21) and a water pump (23) fixed to the upper surface of the drilling machine base (1), wherein the delivery end of the water pump (23) is connected to the cleaning ring mechanism (26); The cleaning ring mechanism (26) comprises an outer water tank (261), an inner sleeve (262) fixed in the inner ring of the outer water tank (261), and six pre-wash nozzles (263) arranged in a circular array are fixed on the inner cavity of the outer water tank (261), and the other end of the pre-wash nozzle (263) penetrates into the inner part of the inner sleeve (262); and six alloy nozzles (266) are penetrated in a circular array on the top of the outer ring surface of the inner sleeve (262), and the liquid inlet end of the alloy nozzle (266) is penetrated by a junction pipe (267), and the interior of the junction pipe (267) is connected to the delivery end of the water pump (23).

2. A bridge pile foundation drilling device according to claim 1, characterized in that: The liquid inlet end of the water pump (23) is connected to a water pumping pipe (22) penetrating into the interior of the water storage tank (21) via a pipe joint, and a liquid inlet is provided on the side wall of the water storage tank (21). The liquid delivery end of the water pump (23) is connected to a water supply pipe (24) via a pipe joint, and the end of the water supply pipe (24) away from the water pump (23) penetrates into the inner cavity of the intersection pipe (267).

3. A bridge pile foundation drilling device according to claim 1, characterized in that: The interior of the outer water tank (261) is filled with a sediment loosening agent, and a liquid replenishing port (268) is provided on the upper surface of the outer water tank (261), and a rubber plug is provided inside the liquid replenishing port (268) by screwing it with a thread.

4. A bridge pile foundation drilling device according to any one of claims 1, 2 or 3, characterized in that: The intersection pipe (267) is in an annular shape as a whole and the interior of the intersection pipe (267) is in a hollow state, so as to allow water to flow into the interior of the alloy nozzle (266).

5. The bridge pile foundation drilling device according to claim 1, characterized in that: The outer ring surface of the inner sleeve (262) is provided with six circular holes in an annular array on both the upper and lower layers for the pre-wash nozzle (263) and the alloy nozzle (266) to pass through.

6. A bridge pile foundation drilling device according to claim 1 or 3, characterized in that: An air pump (265) is fixed on the top surface of the outer water tank (261), and an air pipe (264) penetrating into the inner cavity of the outer water tank (261) is fixed to the air supply port of the air pump (265) via a pipe joint.

7. A bridge pile foundation drilling device according to claim 1, characterized in that: Two fixing rods (25) are fixed to the outer ring surface of the inner sleeve (262), and one end of the fixing rod (25) away from the inner sleeve (262) is fixedly connected to the front side surface of the drilling machine frame (4).

8. The bridge pile foundation drilling device according to claim 1, characterized in that: The inner cavity side wall of the inner casing (262), as well as the ports of the alloy nozzle (266) and the pre-wash nozzle (263) are all spaced 4 cm to 7 cm from the outer surface of the drill pipe.

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