CN213869700U - Spiral percussion drill suitable for rock and soil - Google Patents

Abstract

The utility model provides a spiral percussion drill suitable for rock and soil, which comprises a rock drilling part, a soil drilling part, a gear, a drill rod and a drill bit; the rock drilling component comprises a cylinder, an air pipe is arranged at the top of the cylinder, an opening is formed in the bottom of the cylinder, a piston is arranged in the cylinder, the top of the piston is fixedly connected with the turbine fan blades, and the bottom of the piston is fixedly connected with a force transmission component; the soil drilling component comprises a motor, and the motor is arranged in the force transmission component; the inner part of the gear is connected with the drill rod in an embedded mode, the outer part of the gear is respectively connected with the bottom surface of the force transmission component and the motor in a meshed mode, and the bottom of the gear is fixedly connected with the drill rod through the force bearing component; the drill bit comprises a spiral drill bit and a high-strength rock drill bit. The utility model provides a difficult problem that drilling equipment can't be applicable to different soil layers, adaptable different stratum condition, but accurate control drilling angle, mobility is strong, green, energy-concerving and noise-reduction, and the drill bit is firm, is applicable to side slope, excavation supporting engineering.

Description

Spiral percussion drill suitable for rock and soil

Technical Field

The utility model belongs to the technical field of geotechnical engineering, concretely relates to spiral percussion drill suitable for rock and soil.

Background

Bolting is a common form of bolting in the field of geotechnical engineering, and generally, a spiral drilling machine is used for soil layer drilling, and a hole is formed in a rock layer by using an impact down-the-hole drill. In actual engineering, complex formations of both earth and rock formations are often encountered, and the conventional solution to this problem is to replace the drilling equipment. However, such a solution has the following problems: (1) the replacement, transportation, assembly and check of the machine tool equipment take a lot of time, and the construction period is prolonged. (2) Different drilling equipment is replaced according to different stratum conditions, and engineering cost is increased invisibly. (3) The replacement and displacement of the machine tool easily cause hole position deviation and drill hole inclination.

Disclosure of Invention

To the technical problem, the utility model aims at providing a spiral percussion drill and construction method who is applicable to the alternative stratum condition of soil layer and rock stratum, drilling efficiency height, accommodation are wide, convenient and fast and easily operation.

The utility model adopts the technical proposal that:

a spiral impact drilling machine for rock and soil comprises a power distribution system, an air compression system, a rock drilling component, a soil drilling component, a gear, a drill rod and a drill bit at the bottom of the drill rod; the rock drilling component comprises a cylinder, an air pipe is arranged at the top of the cylinder, an opening is formed in the bottom of the cylinder, a piston is arranged in the cylinder, the top of the piston is fixedly connected with the turbine fan blades, and the bottom of the piston is fixedly connected with a force transmission component; the soil drilling component comprises a soil drilling shell and a motor, the force transmission component is arranged in the soil drilling shell, and the motor is arranged in the force transmission component; the inner part of the gear is connected with the drill rod in an embedded mode, the outer part of the gear is respectively connected with the bottom of the force transmission component and the motor in a meshed mode, and the bottom of the gear is fixedly connected with the drill rod through the force bearing component; the drill bit includes the auger bit, and the auger bit bottom is connected with the rock drilling drill bit that excels in, and it both satisfies the function of digging soon of soil layer drilling and satisfies the impact rock drilling function of stratum drilling.

The drill rod is lengthened by adopting splicing type connection assembly, for example, the drill rod is lengthened by adopting threaded connection assembly, and the drill rod is assembled according to the drilling depth, so that the drill rod meets the requirement of the drilling depth.

The top of the piston can be fixedly connected with the shaft or the fan blade of the turbine fan blade.

The drill rig further comprises a dismounting device matched with the drill bit, such as a wrench, the drill bit and the dismounting device are mutually meshed, and the drill rod and the drill bit are automatically dismounted by controlling the drill rod to rotate in the opposite direction.

And a rock drilling shell is arranged outside the cylinder and is connected with the soil drilling shell through bolts.

The gear is one, can also be upper and lower two, and the gear outside on the top meshes with the motor, and the gear outside on the lower limit meshes with the bottom of biography power component, and the bottom of lower gear passes through atress component and drilling rod fixed connection. Preferably one gear.

When the high-strength rock drilling bit contacts the soil layer, a motor is started, and the motor drives the spiral drill bit and the high-strength rock drilling bit to rotate through the rotation of the drill rod so as to drill a hole; when the high-strength rock drilling bit contacts a rock stratum, the air compression system (pumping in or pumping out gas) controls the turbine fan blades through the air pipe to drive the piston to rotate, and simultaneously controls the piston to move up and down, so that the force transmission component drives the drill rod to rotate, and drives the spiral drill bit and the high-strength rock drilling bit to rotate, and simultaneously transmits impact load to the force bearing component, and the drill rod drives the high-strength rock drilling bit to rotate and drill rock.

The utility model has the advantages that:

(1) it can be adapted to different stratum conditions, especially suitable for stratum with alternating soil layers and rock layers. The drilling machine can adopt different drilling modes according to different stratum conditions, and can drill holes in a rotary drilling mode when meeting a soil stratum; when a hard rock mass formation is encountered, the hole may be drilled by percussion drilling.

(2) Green, environment-friendly, energy-saving and noise-reducing. The rock drilling component takes compressed air as a power source, has no harmful products, and is energy-saving and environment-friendly; and meanwhile, the working efficiency of the rock drilling part is high.

(3) The free switching between drilling and punching of the equipment is realized. When the drill bit works in the soil body, the drill bit is controlled by the motor to rotate for drilling; when the drill bit works in rocks, the air pump controls the piston to move up and down, so that rock drilling work is realized, and under the action of the air pump, the turbofan impeller at the upper end of the piston drives the piston to rotate at low frequency, so that the drill bit is driven to rotate at low speed, and the drill bit is enabled to drill holes more uniformly.

(4) The motor drilling is stable and can provide suitable torque. When the soil body is drilled, rock drilling is not needed to be chiseled, the motor drives the drill rod to rotate, the rotation frequency of the motor is more stable relative to the rotation of the air pump and the hydraulic control drill rod, meanwhile, the motor can provide torque meeting drilling requirements, and the torque is limited by the air pump and the hydraulic control drill rod.

(5) The transmission system is stable and firm. The invention develops a novel force transmission component and a novel force bearing component to form a set of brand new transmission system. The force transmission component and the stress component are combined for use, so that two working states can be perfectly divided, two works of drilling in soil and drilling in rock are independently carried out, and no correlation is generated between the two works. Meanwhile, the combination of the force transmission component and the stress component plays an important role in stabilizing the drill rod greatly.

(6) Automatic loading and unloading of the drill bit and the drill rod. Through setting up the dismounting device who matches with the drill bit, can realize the auto-control handling of drill bit, drilling rod. The drill rod rotates in the positive direction, and the drill bit is fastened with the drill rod; the drill rod rotates in the opposite direction, the drill bit and the drill rod are loosened, and the drill bit and the drill rod can be conveniently detached.

(7) The drill bit is firm. The drill bit directly acts with the rock-soil body in the drilling process, so the drill bit is the weakest part of the drilling machine. The utility model provides a drill bit is auger bit and the combination drill bit of the high strength drill bit, makes it both satisfy dig soon and strike the demand of rock drilling, does not take place to destroy at the drilling process.

(8) The rock drilling is uniform. Because the upper end of the piston is provided with the turbine fan blades, when air is pumped in or pumped out, the force transmission component drives the drill rod to rotate, and the high-strength rock drilling bit rotates when impacting rock drilling, so that the rock drilling holes are more uniform.

Drawings

Fig. 1 is the internal schematic view of the rock drilling component and the earth drilling component of the present invention.

Fig. 2 is a sectional view a-a.

Fig. 3 is a schematic view of a drill rod and drill bit.

Wherein, 1, a cylinder; 2. an air tube; 3. a piston; 4. turbine blades; 5. a force transfer member; 6. a motor; 7. a force-receiving member; 8. a drill stem; 9. a gear; 10. a thread; 11. a helical drill bit; 12. high strength rock drill bits.

Detailed Description

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "longitudinal," "transverse," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings to facilitate the description of the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Example 1

1-3, an auger percussion drill for rock and soil, comprising an electric power distribution system, an air compression system, a rock drilling component, an earth drilling component, a gear 9, a drill rod 8 and a drill bit at the bottom of the drill rod; the rock drilling component comprises a rock drilling shell and a cylinder 1, wherein the top of the cylinder 1 is provided with an air pipe 2, the bottom of the cylinder 1 is provided with a hole, a piston 3 is arranged in the cylinder 1, the top of the piston 3 is fixedly connected with a shaft of a turbine fan blade 4, and the bottom of the piston 3 is fixedly connected with a force transmission component 5; the soil drilling component comprises a soil drilling shell and a motor 6, the force transmission component 5 is arranged in the soil drilling shell, and the motor 6 is arranged in the force transmission component 5; the inside of the gear 9 is connected with the drill rod 8 in an embedded mode, the outside of the gear 9 is respectively connected with the bottom of the force transmission component 5 and the motor 6 in a meshed mode, and the bottom of the gear 9 is fixedly connected with the drill rod 8 through a stress component; the drill bit comprises a spiral drill bit 11, and a high-strength rock drilling drill bit 12 is connected to the bottom of the spiral drill bit 11.

The drill rods are connected and lengthened through threads 10, and the drill rods are assembled according to the drilling depth, so that the drill rods meet the requirement of the hole depth.

The bottom of the drill rod 8 is connected with the spiral drill bit 11 through threads 10, the drilling machine further comprises a dismounting device matched with the drill bit, and the spiral drill bit 11 and the dismounting device are meshed with each other to control the drill rod to rotate in the opposite direction, so that the drill rod and the drill bit can be dismounted automatically.

The rock drilling shell is connected with the soil drilling shell through bolts.

When the high-strength rock drilling bit 12 contacts a soil layer during working, the motor 6 is started, and the motor 6 drives the spiral drill bit 11 and the high-strength rock drilling bit 12 to rotate through the rotation of the drill rod 8 so as to drill a hole; when the high-strength rock drilling bit 12 contacts a rock stratum, the air compression system (pumping in or pumping out air) controls the turbine fan blades 4 through the air pipe 2 to drive the piston 3 to rotate at a low frequency (realized by adjusting the number of turbines or changing the angles of the turbine fan blades), and controls the piston 3 to move up and down simultaneously, so that the force transmission component 5 drives the drill rod 8 to rotate, and drives the spiral drill bit 11 and the high-strength rock drilling bit 12 to rotate, and simultaneously transmits impact load to the stress component 7, and drives the high-strength rock drilling bit 12 to drill rock while rotating through the drill rod 8.

Claims (5)

1. A spiral percussion drill for rock and soil, characterized in that: the drill bit comprises a power distribution system, an air compression system, a rock drilling component, an earth drilling component, a gear (9), a drill rod (8) and a drill bit at the bottom of the drill rod; the rock drilling component comprises a cylinder (1), an air pipe (2) is arranged at the top of the cylinder (1), an opening is formed in the bottom of the cylinder (1), a piston (3) is arranged in the cylinder (1), the top of the piston (3) is fixedly connected with a turbine fan blade (4), and the bottom of the piston (3) is fixedly connected with a force transmission component (5); the soil drilling component comprises a soil drilling shell and a motor (6), the force transmission component (5) is arranged in the soil drilling shell, and the motor (6) is arranged in the force transmission component; the inside of the gear (9) is connected with the drill rod in a nested manner, the outside of the gear (9) is respectively connected with the bottom of the force transmission component (5) and the motor (6) in a meshed manner, and the bottom of the gear (9) is fixedly connected with the drill rod (8) through the force bearing component (7); the drill bit comprises a spiral drill bit (11), and the bottom of the spiral drill bit (11) is connected with a high-strength rock drilling bit (12).

2. A screw impact drill for rock and soil as defined in claim 1 wherein: the drill rod (8) is lengthened by adopting splicing connection assembly.

3. A screw impact drill for rock and soil as defined in claim 1 wherein: the bottom of the drill rod (8) is connected with the drill bit through threads (10), the spiral impact drilling machine further comprises a dismounting device matched with the drill bit, the drill bit and the dismounting device are meshed with each other, and the drill rod is controlled to rotate in the opposite direction, so that the drill rod and the drill bit are dismounted automatically.

4. A screw impact drill for rock and soil as defined in claim 1 wherein: the drilling machine is characterized in that a drilling shell is further arranged outside the air cylinder (1), and the drilling shell is connected with a soil drilling shell through bolts.

5. A screw impact drill for rock and soil as defined in claim 1 wherein: one gear (9) is arranged.

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