CN219012468U

CN219012468U - Low-clearance rotary drilling rig

Info

Publication number: CN219012468U
Application number: CN202320525533.6U
Authority: CN
Inventors: 李明初; 刘宁
Original assignee: Zhengzhou Fudao Machinery Co ltd
Current assignee: Zhengzhou Fudao Machinery Co ltd
Priority date: 2023-03-17
Filing date: 2023-03-17
Publication date: 2023-05-12
Anticipated expiration: 2033-03-17

Abstract

The utility model relates to a low-clearance rotary drilling rig, which comprises a chassis, a mast and a power head, wherein a cab is arranged on the upper side of the chassis, a connecting frame is arranged on the front side of the cab, a mast is arranged on the right side of the connecting frame, the power head is arranged on the right side of the mast, a novel drill rod is arranged in the power head.

Description

Low-clearance rotary drilling rig

Technical Field

The utility model belongs to the technical field of rotary drilling rigs, and particularly relates to a low-clearance rotary drilling rig.

Background

The construction process of the rotary drilling rig is an advanced pile foundation construction process in recent years in China, is known as a green construction process, and is characterized by being capable of automatically positioning and vertically rotating a hole, and has the characteristics of high hole forming speed, less pollution, strong maneuverability and the like, a drill rod matched with the length of a mast is required to be installed when the rotary drilling rig is used, the common drill rod is usually of a five-layer structure, the total effective depth is about 50 meters, but projects are carried out in special areas, such as under an overhead bridge, an indoor factory building and the like, at the moment, the rotary drilling rig with higher mast cannot enter the field for work, and if the rotary drilling rig with lower mast is used for construction, the drilling depth cannot be ensured, so that the rotary drilling rig is a embarrassing problem for constructors.

Disclosure of Invention

The utility model aims to provide a low-clearance rotary drilling rig, which is used for solving the problem that the current rotary drilling rig cannot be constructed in a part of special areas.

The purpose of the utility model is realized in the following way: the low-clearance rotary drilling rig comprises a chassis, a mast and a power head, wherein a cab is arranged on the upper side of the chassis, a connecting frame is arranged on the front side of the cab, the mast is arranged on the right side of the connecting frame, the power head is arranged on the right side of the mast, and a novel drill rod is arranged inside the power head.

The left side of the connecting frame is provided with an amplitude-variable oil cylinder, the middle part of the connecting frame is provided with a winch, and the outer side of the winch is provided with a traction rope.

The upper side and the lower side of the mast are respectively provided with a hinge block A and a hinge block B, the hinge block A is hinged with the variable-amplitude oil cylinder, the hinge block B is hinged with the connecting frame, and the upper end of the mast is provided with a pulley block.

The novel drill rod is characterized in that a sliding block is arranged on the left side of the power head, the sliding block is clamped with the mast, a pressurizing oil cylinder is arranged between the power head and the mast, a hydraulic motor is arranged in the power head, a large-diameter output shaft is arranged on the right side of the hydraulic motor, the novel drill rod is inserted into the large-diameter output shaft, a traction rope bypasses the pulley block and is connected with the novel drill rod, the novel drill rod is sequentially provided with a layer of rod, a two-layer rod, a three-layer rod, a four-layer rod, five-layer rod and six-layer rod from outside to inside, a square head is arranged at the lower end of the novel drill rod, and a short spring is arranged on the upper side of the square head.

The chassis is of the telescopic crawler chassis type.

The lower end of the mast is provided with a bottom rod which can be folded and placed.

The number of the hydraulic motors is two, and the two hydraulic motors are connected with the large-diameter output shaft through the speed reducer.

The upper side of the hydraulic motor is provided with an anti-collision rod, and the anti-collision rod is arc-shaped.

The utility model has the beneficial effects that: when the device is constructed, the piston rod in the amplitude variable oil cylinder contracts, the mast is driven to move around the connecting frame under the action of the hinge block A and the hinge block B until the mast reaches a vertical state, the power head starts to operate, the hydraulic motor drives the novel drill rod to rotate through the large-diameter output shaft, the winch drives the novel drill rod to move up and down along the mast through the traction rope, and further rotary drilling operation is started.

Drawings

Fig. 1 is a schematic view of a low headroom rotary drilling rig according to the present utility model in a transport mode.

Fig. 2 is a schematic view of a construction state of the low-headroom rotary drilling rig of the present utility model.

Fig. 3 is a top view of a power head of the low headroom rotary drilling rig of the present utility model.

FIG. 4 is a diagram of the novel internal structure of the drill pipe of the low headroom rotary drilling rig of the present utility model.

Fig. 5 is a cross-sectional view A-A of fig. 4 of the low headroom rotary drilling rig of the present utility model.

In the figure: 1. chassis 2, mast 3, unit head 4, driver's cabin 5, link 6, new-type drilling rod 7, hoist engine 8, amplitude cylinder 9, haulage rope 10, hinge piece A11, hinge piece B12, assembly pulley 13, pressurized cylinder 14, bottom rod 15, slider 16, large diameter output shaft 17, hydraulic motor 18, crashproof pole 19, one deck pole 20, two deck pole 21, three deck pole 22, four deck pole 23, five deck pole 24, six deck pole 25, square head 26, short spring.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

Examples

As shown in fig. 1-5, the low-clearance rotary drilling rig comprises a chassis 1, a mast 2 and a power head 3, wherein a cab 4 is arranged on the upper side of the chassis 1, a connecting frame 5 is arranged on the front side of the cab 4, the mast 2 is arranged on the right side of the connecting frame 5, the power head 3 is arranged on the right side of the mast 2, and a novel drill rod 6 is arranged in the power head 3.

The left side of the connecting frame 5 is provided with an amplitude-variable oil cylinder 8, the middle part of the connecting frame 5 is provided with a winch 7, and the outer side of the winch 7 is provided with a traction rope 9.

The upper side and the lower side of the mast 2 are respectively provided with a hinge block A10 and a hinge block B11, the hinge block A10 is hinged with the amplitude cylinder 8, the hinge block B11 is hinged with the connecting frame 5, and the upper end of the mast 2 is provided with a pulley block 12.

The novel drilling rod 6 is connected with the novel drilling rod 6 by bypassing the pulley block 12, the novel drilling rod 6 is sequentially provided with a layer of rod 19, a layer of rod 20, a layer of rod 21, a layer of rod 22, a layer of rod 23 and a layer of rod 24 from outside to inside, a square head 25 is arranged at the lower end of the novel drilling rod 6, and a short spring 26 is arranged at the upper side of the square head 25.

When the novel drilling rod is used and in a construction state, the piston rod in the amplitude variation cylinder 8 contracts, the mast 2 is driven to move around the connecting frame 5 under the action of the hinge block A10 and the hinge block B11 until the mast 2 reaches a vertical state, the power head 3 starts to operate, the hydraulic motor 17 drives the novel drilling rod 6 to rotate through the large-diameter output shaft 16, the winch 7 drives the novel drilling rod 6 to move up and down along the mast 2 through the traction rope 9, further rotary drilling operation is started, the large-diameter output shaft 16 has larger inner diameter compared with the prior art, larger torque can be provided, the novel drilling rod 6 with larger diameter can be installed inside, the novel drilling rod 6 of the novel drilling rod has a five-layer structure generally, the novel drilling rod 6 of the novel drilling rod has six layers, the novel drilling rod 6 is of a special short and thick shape integrally, the novel drilling rod is convenient for the novel drilling rod to enter a special region for construction, and the drilling construction depth can be effectively ensured.

Examples

For better effect, the left side of the connecting frame 5 is provided with an amplitude cylinder 8, the middle part of the connecting frame 5 is provided with a winch 7, and the outer side of the winch 7 is provided with a traction rope 9.

In order to achieve a better effect, hinge blocks A10 and hinge blocks B11 are respectively arranged on the upper side and the lower side of the mast 2, the hinge blocks A10 are hinged with the variable-amplitude oil cylinder 8, the hinge blocks B11 are hinged with the connecting frame 5, and a pulley block 12 is arranged at the upper end of the mast 2.

For better effect, unit head 3 left side be provided with slider 15, slider 15 carry out the joint with mast 2, unit head 3 and mast 2 between be provided with pressurized cylinder 13, unit head 3 inside be provided with hydraulic motor 17, hydraulic motor 17 right side be provided with major diameter output shaft 16, new-type drilling rod 6 peg graft inside major diameter output shaft 16, haulage rope 9 walk around assembly pulley 12 and be connected with new-type drilling rod 6, new-type drilling rod 6 from outside to inside set gradually one deck pole 19, two-layer pole 20, three-layer pole 21, four-layer pole 22, five-layer pole 23 and six-layer pole 24, new-type drilling rod 6 lower extreme be provided with square head 25, square head 25 upside be provided with short spring 26.

For better results, the chassis 1 is of the telescopic crawler type, and the chassis 1 has good carrying and moving capabilities.

For better effect, the bottom rod 14 is arranged at the lower end of the mast 2, the bottom rod 14 can be folded for placement, and when the mast 2 is placed horizontally, the bottom rod 14 can be folded, so that the occupied area is reduced.

For better effect, the number of the hydraulic motors 17 is two, and the two hydraulic motors 17 are connected with the large-diameter output shaft 16 through a speed reducer.

For better effect, the upper side of the hydraulic motor 17 is provided with an anti-collision rod 18, the anti-collision rod 18 is arc-shaped, and when the novel drill rod 6 is installed into the power head 3 for the first time, the anti-collision rod 18 can protect the hydraulic motor 17 from being bumped by the novel drill rod 6 which swings, and the positions of the arc-shaped anti-collision rod 18 and the large-diameter output shaft 16 are not mutually influenced.

When the novel drilling rod device is used, in a construction state, a piston rod in the amplitude changing oil cylinder 8 contracts, the mast 2 is driven to move around the connecting frame 5 under the action of the hinge block A10 and the hinge block B11 until the mast 2 reaches a vertical state, the power head 3 starts to operate, the hydraulic motor 17 drives the novel drilling rod 6 to rotate through the large-diameter output shaft 16, the winch 7 drives the novel drilling rod 6 to move up and down along the mast 2 through the traction rope 9, further rotary drilling operation is started, compared with the prior art, the large-diameter output shaft 16 is larger in inner diameter, larger torque can be provided, the novel drilling rod 6 with a thicker diameter can be installed inside, the novel drilling rod 6 of the novel drilling rod device is usually provided with a five-layer structure, the novel drilling rod 6 of the novel drilling rod device is provided with six layers, and more layers of novel drilling rods 6 can be replaced when necessary, so that the novel drilling rod device can enter a special region for construction, drilling construction depth can be effectively ensured, when the novel drilling rod device is moved or in a transport state, the novel drilling rod 6 can be adjusted to be in a horizontal state through the inner piston rod of the amplitude changing oil cylinder 8, stability and convenience can enter the special region, and the novel torque can be disassembled in a transportation process, and the novel rotary drilling rod 6 is flexible, and flexible in a flexible time-saving structure, and has a wide application range.

Claims

1. The utility model provides a low headroom digs rig soon, it includes chassis, mast and unit head, its characterized in that: the novel drill rod is characterized in that a cab is arranged on the upper side of the chassis, a connecting frame is arranged on the front side of the cab, a mast is arranged on the right side of the connecting frame, a power head is arranged on the right side of the mast, and a novel drill rod is arranged in the power head.

2. The low headroom rotary drilling rig of claim 1, wherein: the left side of the connecting frame is provided with an amplitude-variable oil cylinder, the middle part of the connecting frame is provided with a winch, and the outer side of the winch is provided with a traction rope.

3. The low headroom rotary drilling rig of claim 2, wherein: the upper side and the lower side of the mast are respectively provided with a hinge block A and a hinge block B, the hinge block A is hinged with the variable-amplitude oil cylinder, the hinge block B is hinged with the connecting frame, and the upper end of the mast is provided with a pulley block.

4. A low headroom rotary drilling rig according to claim 3, wherein: the novel drill rod is characterized in that a sliding block is arranged on the left side of the power head, the sliding block is clamped with the mast, a pressurizing oil cylinder is arranged between the power head and the mast, a hydraulic motor is arranged in the power head, a large-diameter output shaft is arranged on the right side of the hydraulic motor, the novel drill rod is inserted into the large-diameter output shaft, a traction rope bypasses the pulley block and is connected with the novel drill rod, the novel drill rod is sequentially provided with a layer of rod, a two-layer rod, a three-layer rod, a four-layer rod, five-layer rod and six-layer rod from outside to inside, a square head is arranged at the lower end of the novel drill rod, and a short spring is arranged on the upper side of the square head.

5. The low headroom rotary drilling rig of claim 1, wherein: the chassis is of the telescopic crawler chassis type.

6. A low headroom rotary drilling rig according to claim 3, wherein: the lower end of the mast is provided with a bottom rod which can be folded and placed.

7. The low headroom rotary drilling rig of claim 4, wherein: the number of the hydraulic motors is two, and the two hydraulic motors are connected with the large-diameter output shaft through the speed reducer.

8. The low headroom rotary drilling rig of claim 7, wherein: the upper side of the hydraulic motor is provided with an anti-collision rod, and the anti-collision rod is arc-shaped.