CN213418998U

CN213418998U - Improved drilling machine equipment

Info

Publication number: CN213418998U
Application number: CN202022105733.5U
Authority: CN
Inventors: 俞建金; 黎寒冰; 顾然; 全程; 吴斌华; 魏鹏
Original assignee: Jiangsu Jianyuan Construction Co ltd
Current assignee: Jiangsu Jianyuan Construction Co ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-06-11
Anticipated expiration: 2030-09-23

Abstract

The utility model discloses a modified drilling equipment mainly includes: the mud pump assembly comprises a mud pool, wherein at least two mud pumps are arranged in the mud pool, the mud pumps are connected in parallel through mud pipes, one end of each mud pipe is connected with the mud pump, the other end of each mud pipe is connected to a drill rod after confluence, a sleeve is arranged outside the drill rod and connected to the mud pool through the mud pipes, the drill rod is driven by a drilling machine, a rotary table gear member in the drilling machine adopts a bevel gear, and the number of teeth of the bevel gear in the bevel gear is 22. By the mode, the problem that the drilling speed is greatly reduced due to the fact that the flow rate of the slurry is reduced and the slag carrying capacity is weakened can be solved.

Description

Improved drilling machine equipment

Technical Field

The utility model relates to a building field especially relates to a modified drilling equipment.

Background

The bored pile is adopted by a large number of pile foundation projects due to the advantages of mechanical operation, simple construction, wide application range and the like, and in the hole forming process of the bored pile, the problems of poor hole forming quality and low drilling speed in the hole forming process are often encountered due to the slow drilling speed of an inherent turntable of a GPS-20 type drilling machine, and particularly, when the hole is drilled in a large-aperture pile and the stratum condition is complex, the hole forming quality and the construction progress are greatly influenced due to the weakened cutting capability and the low drilling efficiency. In the process of forming a hole in a large-caliber deep-depth bored pile, particularly after the depth of the formed hole exceeds 70m, a 3PN slurry pump equipped in a conventional GPS-20 bored pile machine cannot meet the requirement of slurry impact flow, and the drilling speed is greatly reduced due to the fact that the flow rate of the slurry is reduced and the slag carrying capacity is weakened. These problems are mainly encountered at present in the following methods: 1. the construction machine with higher power is replaced, and the construction cost is increased, so that the hole forming requirement is ensured; 2. replacing an original drill bit of the pile machine with a cone drill or a hob drill; 3. the number of construction machines is increased to ensure the construction progress.

The conventional treatment measures at present have the following problems:

1. the conventional GPS-20 drilling machine is limited by an inherent turntable gear component, and the rotating speed is slow during conventional construction hole forming, so that the cutting capacity is weakened in the large-caliber drilling process, the drilling speed is slowed, and the construction progress is influenced;

2. if the original drill bit is replaced by a roller bit or a hob bit by adopting a method of replacing the drill bit in the drilling process, the two drill bits are expensive, and the construction economic benefit is reduced;

3. if the method of increasing the number of the construction machines or replacing the construction machines is adopted, the construction cost is greatly increased;

4. in the process of drilling into a rock stratum, a conventional GPS-20 drilling machine is limited by an inherent turntable gear component, and the rotating speed is slow in the conventional construction pore-forming process, so that the grinding and impacting capability of a drill bit is weak, and the drilling speed is slow;

5. the conventional GPS-20 drilling machine is only provided with 1 3PN slurry pump, the slag carrying requirement can be met in the construction process of small pore-forming aperture and shallow pore-forming depth, once the pore-forming aperture is large (more than 1000mm) and the pore-forming depth is deep (more than 70m), the filling amount of the slurry is limited by the quantity of the slurry pumps, the conditions of slow flow rate and weak slag carrying capacity are easy to occur, and the drilling efficiency and the pore-forming quality of the drilling machine are greatly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a modified drilling equipment, can solve because the mud velocity of flow slows down, takes the sediment ability to weaken, leads to the problem that drilling speed descends by a wide margin.

In order to solve the technical problem, the utility model discloses a technical scheme be: there is provided an improved drilling rig apparatus, consisting essentially of: the mud pump system comprises a mud pool, wherein at least two mud pumps are arranged in the mud pool, the mud pumps are connected in parallel through mud pipes, one end of each mud pipe is connected with the mud pump, the other end of each mud pipe is connected to a drill rod after confluence, a sleeve is arranged outside the drill rod, and the sleeve is connected to the mud pool through the mud pipes.

In a preferred embodiment of the invention, the drill rod is driven by a drilling machine.

In a preferred embodiment of the present invention, the rotary table gear member of the drilling machine is a bevel gear.

In a preferred embodiment of the present invention, the number of teeth of the bevel pinion is set to 22 teeth in the bevel gear.

In a preferred embodiment of the present invention, the number of the mud pumps in the mud pit is two.

In a preferred embodiment of the present invention, a settling tank is provided between the casing and the mud tank.

In a preferred embodiment of the present invention, the sedimentation tank is provided with two chambers: a first chamber and a second chamber.

In a preferred embodiment of the present invention, a grating is disposed at a lower portion between the first chamber and the second chamber.

The utility model has the advantages that:

1. the number of the slurry pumps is increased, the drilling efficiency and the pore-forming quality of the GPS-20 drilling machine can be greatly improved under the condition that the construction cost is not increased too much, and the effect is remarkable particularly in pore-forming construction with large aperture and large depth;

2. after the slurry pump is added, the slurry pumps are connected in parallel through the three-way valve, so that the slurry flow is increased, the slag carrying capacity is enhanced, and the drilling speed is increased;

3. because the slag carrying capacity is enhanced, the amount of the sediments to be cleaned is reduced during secondary hole cleaning, so that the secondary hole cleaning time is greatly reduced, the construction efficiency is improved, the sediment thickness control can be greatly improved, and the hole forming quality is greatly improved;

4. the mud pumps are connected in parallel through the three-way ball valve, the two-way control can be carried out through the three-way ball valve in the construction process of the cast-in-place pile, 2 channels are formed in a deep area, and 1 channel is formed in a shallow area, so that the improved GPS-20 drilling machine is higher in applicability, and the construction cost is saved.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of an improved drilling rig apparatus of the present invention;

FIG. 2 is a front elevation view of a mechanical turntable in the drilling rig;

FIG. 3 is a schematic view showing a cross section A-A in FIG. 2;

the parts in the drawings are numbered as follows: 1. the device comprises a mud pit, 2, a mud pipe, 3, a drill rod, 4, a sleeve, 5, a sedimentation tank, S, a three-way ball valve, 7, a mud pump, 51, a first chamber, 52, a second chamber, 53 and a grid.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to fig. 1, an embodiment of the present invention includes:

an improved drilling rig apparatus, consisting essentially of: the mud pit 1 is internally provided with two mud pumps 7, the mud pumps 7 are connected in parallel through mud pipes 2, a three-way ball valve 6 is arranged between the two mud pumps 7, one end of each mud pipe 2 is connected with the mud pump 7, the other end of each mud pipe is connected to a drill rod 3 after confluence, a sleeve 4 is arranged outside the drill rod 3, and the sleeve 4 is connected to the mud pit 1 through the mud pipes 2.

Further, the drill rod 3 is driven by a drilling machine, a turntable gear member in the drilling machine adopts bevel gears, and the number of teeth of small bevel gears in the bevel gears is set to be 22.

Theoretically, the number of the large bevel teeth Z2, the number of the small bevel teeth Z1, the rotating speed of the small bevel gear N1, and the rotating speed of the large bevel gear N2 are analyzed, wherein the rotating speed of the small bevel gear represents the fixed rotating speed provided in the transmission case, and under the premise of not changing the output power of the transmission case, the value is unchanged, the rotating speed of the large bevel gear represents the rotating speed (i.e. the rotating speed of the grinding disc during construction) of the large bevel gear driven by the rotation of the small bevel gear, and the four parameters are related as follows: Z1/Z2 is N2/N1, under the prerequisite that does not change gearbox output and big bevel gear tooth number, through increasing little bevel gear tooth number Z1, reaches the rotational speed N2 that promotes the mill to reach the purpose that promotes the efficiency of construction. When a large-caliber pile is formed or a rock stratum is drilled, the cutting capacity of the drill bit can be effectively increased, and the construction quality and efficiency under the conditions are improved.

The tooth number of the small bevel gear is increased, and the inherent drilling speed can be effectively improved. The small bevel gear is simple and convenient to machine, low in overall machining difficulty and high in applicability, only small bevel gear components are improved, the construction process does not need to be changed, operation is convenient, the small bevel gear is exquisite and efficient, other mechanical components of a GPS-20 drilling machine do not need to be changed, and drilling efficiency of the drilling machine is improved at the minimum cost. In large-caliber hole forming or rock stratum drilling, the drilling speed can be effectively improved by increasing the inherent rotating speed, the cutting capacity is increased, measures such as replacing construction machinery with higher price or replacing a roller bit or a hob bit are avoided, and the construction cost is reduced.

Further, a sedimentation basin 5 is provided between the casing 4 and the mud basin 1 in order to control the content of sand and gravel suspended in the mud. The sedimentation tank 5 is provided with two chambers: a first chamber 51 and a second chamber 52. A grill 53 is provided at a lower portion between the first chamber 51 and the second chamber 52. Slurry from the casing 4 is sent into the first chamber 51 through the slurry pipe 2, and after sand and small stones suspended in the slurry are precipitated in the first chamber 51, the slurry precipitated in the first chamber 51 flows into the second chamber 52 through the grating 53 due to the height difference of the liquid levels of the first chamber 51 and the second chamber 52, so that the purpose of controlling the content of the sand and the stones in the slurry is achieved. The second chamber 52 is connected to the mud pit 1 by a mud pipe 2.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An improved drilling rig apparatus, comprising, in combination: the mud pump system comprises a mud pool, wherein at least two mud pumps are arranged in the mud pool, the mud pumps are connected in parallel through mud pipes, one end of each mud pipe is connected with the mud pump, the other end of each mud pipe is connected to a drill rod after confluence, a sleeve is arranged outside the drill rod, and the sleeve is connected to the mud pool through the mud pipes.

2. An improved drilling rig apparatus as claimed in claim 1 wherein the drill pipe is driven by a drilling rig.

3. An improved drill rig apparatus as claimed in claim 2 wherein the rotary table gear members in the drill rig are bevel gears.

4. An improved drilling rig apparatus as claimed in claim 3, wherein the number of teeth in the bevel gears is set to 22.

5. The improved drilling rig apparatus of claim 1, wherein the number of mud pumps in said mud pit is two.

6. An improved drilling rig apparatus as claimed in claim 1, wherein a settling pond is provided between the casing and the mud pond.

7. An improved drilling rig apparatus as claimed in claim 6, characterized in that the settling tank is provided with two chambers: a first chamber and a second chamber.

8. An improved drilling rig apparatus as claimed in claim 7, wherein a lower portion between the first and second chambers is provided with a grating.